WO2019041393A1

WO2019041393A1 - Lapping and polishing mechanism

Info

Publication number: WO2019041393A1
Application number: PCT/CN2017/102092
Authority: WO
Inventors: 李辉; 莫金树; 郑连东
Original assignee: 广州市永合祥自动化设备科技有限公司
Priority date: 2017-08-31
Filing date: 2017-09-18
Publication date: 2019-03-07
Also published as: CN207127715U

Abstract

A lapping and polishing mechanism comprises an indexing plate (10), a bushing (20), an eccentric sleeve (330), an eccentric adjustment piece (320), a spring (340), a position-limiting column (310), and a connecting shaft (360). The eccentric sleeve (330), the eccentric adjustment piece (320), and the spring (340) are all provided in a first shaft hole (220) of the bushing (20). A bearing (370) and a clutch adjustment block (350) are provided in a second shaft hole (336) of the eccentric sleeve (330), wherein the clutch adjustment block (350) engages with the eccentric adjustment piece (320). One end of the spring (340) abuts the bushing (20), and the other end abuts the eccentric adjustment piece (320). The eccentric adjustment piece (320) is provided with a through hole (321). The connecting shaft (360) passes through the bearing (370), the clutch adjustment block (350), and the eccentric adjustment piece (320). The clutch adjustment block (350) is fixedly connected to the connecting shaft (360). The bearing (370) and the eccentric adjustment piece (320) are rotatably connected to the connecting shaft (360). One end of the position-limiting column (310) is provided on the eccentric sleeve (330), and the other end sequentially passes through the through hole (321), an arc-shaped hole (230), and an adjustment hole (110). The invention can adjust the radius of curvature of the rotation of the polishing wheel, and prevent excessive force exerted on the polishing wheel during polishing from causing a deep scratch on a polished surface, thereby improving polishing effects, and eliminating polishing defects.

Description

Grinding and polishing mechanism

Technical field

This invention relates to polishing apparatus, and more particularly to an abrasive polishing mechanism.

Background technique

With the development of economy and society, improving work efficiency and product quality has become an inevitable trend of development. Various tools are also increasingly oriented towards energy conservation, ease of use, safety and efficiency, and multi-functionality. Grinding and polishing machines are no exception for beauty.

The traditional grinding and polishing machine is directly connected with the polishing wheel. The polishing line is relatively thick, and the aperture is easily generated on the polished surface, making the polished surface look uneven, smooth and unattractive.

Summary of the invention

Based on this, the present invention overcomes the defects of the prior art, and provides an abrasive polishing machine and an auxiliary mechanism thereof, which are difficult to leave polishing marks and effectively improve the polishing effect.

An abrasive polishing mechanism, including

An indexing plate, the indexing plate is provided with an adjusting hole and a plurality of positioning holes;

a sleeve, the first end surface of the sleeve is provided with a rotating shaft for connecting with the driving mechanism, and the second end surface is provided with a first shaft hole which is eccentric with the center line, and the rotating shaft and the indexing plate are rotatably connected An arcuate hole is defined in the first end surface of the sleeve, and the sleeve is engaged with the positioning hole on the indexing plate by the limiting member;

An eccentric sleeve, an eccentric adjusting piece and a spring, wherein the eccentric sleeve, the eccentric adjusting piece and the spring are disposed in the first shaft hole, and the eccentric sleeve is provided with a second shaft hole eccentric with the center line thereof, the first a bearing and a clutch adjusting block matched with the eccentric adjusting piece are disposed in the two-axis hole, the spring end is abutted on the sleeve, and the other end is abutted on the eccentric adjusting piece, and the eccentric adjusting piece is provided with a through hole;

a connecting shaft, one end of the connecting shaft is disposed on the bearing, the clutch adjusting block and the eccentric adjusting piece, the other end is used for connecting with the polishing wheel, the clutch adjusting block is fixedly connected with the connecting shaft, the bearing and the eccentric adjusting piece are Rotatable connection with the connecting shaft;

a limiting post, one end of the limiting post is disposed on the eccentric sleeve, and the other end is sequentially disposed in the through hole, the arc hole and the adjusting hole.

Its further technical solutions are as follows:

The eccentric adjusting piece includes an abutting disk and a coupling plate disposed on the abutting disk, the abutting disk is different from the center line of the coupling disk, and the spring abuts on the abutting disk, the coupling plate and the The clutch adjustment block cooperates, and the through hole is disposed on the abutting disk.

a first tapered groove is disposed on the coupling disc, and a first tapered boss is disposed in the first tapered groove, and the clutch adjustment block faces the first tapered groove toward an end surface of the eccentric adjusting piece A matching tapered shape is provided, and a second tapered groove matching the first tapered boss is disposed on an end surface of the clutch adjustment block toward the eccentric tab.

The grinding and polishing mechanism further includes a split pin, the clutch adjusting block is provided with a first through hole extending through a radial line thereof in a radial direction thereof, and the connecting shaft is provided with a through-axis thereof along a radial direction thereof a second through hole of the core wire, the split pin is disposed in the first through hole and the second through hole.

The connecting shaft includes a first shaft segment, a second shaft segment and a third shaft segment which are sequentially connected, the diameter of the first shaft segment is smaller than the diameter of the second shaft segment, and the diameter of the second shaft segment is smaller than the third shaft segment The first tapered boss is provided with a first mounting hole matched with the first shaft segment, and the second tapered groove is provided with a second mounting hole matched with the second shaft segment. The bearing sleeve and the clutch adjusting block are sleeved on the second shaft section, and the first shaft section extends into the first mounting hole.

a accommodating groove is disposed on an end surface of the eccentric adjusting piece away from the clutch adjusting block, a fixing hole is disposed in the receiving groove, the spring is a conical spring, and a large end of the conical spring is adjacent to the eccentric adjusting piece, and The end of the large end of the conical spring is engaged in the fixing hole.

One end of the eccentric sleeve away from the eccentric tab is provided with a shaft seal, and the third shaft segment extends through the shaft seal to extend the eccentric sleeve.

a first annular groove is disposed on the inner wall of the first shaft hole adjacent to the shaft seal, a first circlip is disposed in the first annular groove, and the first circlip is blocked outside the eccentric sleeve to be the eccentric sleeve Limiting in the first shaft hole.

The eccentric sleeve is provided with a circlip pliers avoiding groove near the end surface of the first circlip.

The end surface of the connecting shaft away from the eccentric adjusting piece is provided with an internally threaded hole that is coupled with the polishing wheel.

The advantages or principles of the foregoing technical solutions are described below:

In the polishing and polishing mechanism of the embodiment, the first shaft hole and the rotating shaft are different shafts, and the second shaft hole is different from the first shaft hole. When the driving mechanism drives the rotating shaft to rotate, the connecting shaft and the polishing wheel thereon are synchronously driven to be eccentric. Rotating motion, if it is necessary to adjust the radius of curvature of the polishing wheel, loosen the limiting member to rotate the sleeve relative to the indexing plate, and the limiting column can only move within the adjusting hole of the indexing plate, so that the second shaft hole is The eccentricity between the connecting shaft and the rotating shaft is changed, thereby achieving the purpose of adjusting the radius of curvature of the polishing wheel, thereby changing the running track of the polishing wheel, thereby achieving different polishing effects, and the resistance of the polishing wheel on the connecting shaft is greater than When the rated resistance is reached, the clutch adjustment block fixedly connected with the connecting shaft rotates relative to the eccentric adjusting piece to avoid excessive force on the polishing wheel, thereby causing deep polishing scratches on the polishing surface, further improving the polishing effect, reducing the swing amplitude, and eliminating the aperture. It is not easy to leave polishing marks.

DRAWINGS

Figure 1 is an exploded perspective view of the polishing and polishing mechanism of the embodiment;

Figure 2 is a schematic view of the assembly of the polishing and polishing mechanism of the embodiment;

3 is an exploded perspective view 2 of the polishing and polishing mechanism of the embodiment;

4 is an exploded perspective view 3 of the polishing and polishing mechanism of the embodiment;

Figure 5 is a schematic view showing a part of the grinding and polishing mechanism of the embodiment;

Figure 6 is a second schematic view of the assembly of the polishing and polishing mechanism of the embodiment;

Figure 7 is a schematic cross-sectional view of the polishing and polishing mechanism of the embodiment;

8 is a schematic plan view of the polishing and polishing mechanism according to the embodiment;

Figure 9 is a perspective view of the sleeve in the first position according to the embodiment;

Figure 10 is a perspective view of the sleeve of the present embodiment in a second position.

Description of the reference signs:

10, indexing plate, 110, adjusting hole, 112, inner hole, 114, outer hole, 120, positioning hole, 130, groove, 132, limit table, 140, connecting hole, 20, bushing, 210, shaft , 212, third annular groove, 220, first shaft hole, 222, first annular groove, 230, curved hole, 310, limit column, 320, eccentric adjustment piece, 321, perforation, 322, first cone Slot, 323, first tapered boss, 324, first mounting hole, 325, receiving groove, 326, fixing hole, 328, abutting plate, 329, coupling plate, 330, eccentric sleeve, 332, shaft seal, 334, circlip pliers avoiding groove, 336, second shaft hole, 340, spring, 350 , clutch adjustment block, 351, second tapered slot, 352, second mounting hole, 353, first through hole, 360, connecting shaft, 361, first shaft segment, 362, second shaft segment, 3622, second Annular groove, 363, third shaft section, 364, second through hole, 370, bearing, 380, second circlip, 390, cotter pin, 40, limiting member, 410, positioning bead, 420, fixing seat, 422 , mounting groove, 424, third through hole, 426, fourth through hole, 430, elastic member, 440, adjusting pin, 441, positioning groove, 442, first pin segment, 444, second pin segment, 446, Three pin segments, 50, first circlip, 60, transition connector, 90, third circlip.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the invention are given in the drawings. However, the invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be more fully understood.

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or the element can be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right", and the like, as used herein, are for the purpose of illustration and are not intended to be the only embodiment.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

As shown in FIGS. 1-3 and 6, an abrasive polishing mechanism includes an indexing plate 10, and the indexing plate 10 is provided with an adjusting hole 110 and a plurality of positioning holes 120; a sleeve 20, and the sleeve The first end surface is provided with a rotating shaft 210 for connecting with the driving mechanism, and the second end surface is provided with a first shaft hole 220 which is eccentric with the center line thereof. The rotating shaft 210 is rotatably connected with the indexing plate 10, and the sleeve 20 is rotatably connected. Opened on the first end face An arcuate hole 230, the sleeve 20 is engaged with the one of the positioning holes 120 by the limiting member 40 on the indexing plate 10; the eccentric sleeve 330, the eccentric adjusting piece 320 and the spring 340, the eccentricity The sleeve 330, the eccentric adjustment piece 320 and the spring 340 are all disposed in the first shaft hole 220. The eccentric sleeve 330 is provided with a second shaft hole 336 which is eccentric with the center line, and the second shaft hole 336 is provided therein. There is a bearing 370 and a clutch adjustment block 350 that cooperates with the eccentric adjustment piece. One end of the spring 340 spring is abutted on the sleeve 20, and the other end is abutted on the eccentric adjustment piece 320. The eccentric adjustment piece 320 is provided with a through hole 321 a connecting shaft 360, one end of the connecting shaft 360 is disposed on the bearing 370, the clutch adjusting block 350 and the eccentric adjusting piece 320, and the other end is connected to the polishing wheel, and the clutch adjusting block 350 is fixedly connected with the connecting shaft 360. The bearing 370 and the eccentric adjusting piece 320 are rotatably connected to the connecting shaft 360. The limiting post 310 has one end of the limiting post 310 disposed on the eccentric sleeve 330, and the other end is sequentially disposed on the through hole 321 and the curved hole. 230 and the adjustment hole 110.

In the polishing and polishing mechanism of the embodiment, the first shaft hole 220 and the rotating shaft 210 are different shafts, and the second shaft hole 336 is different from the first shaft hole 220. When the driving mechanism drives the rotating shaft 210 to rotate, the connecting shaft 360 is synchronously driven. The polishing wheel thereon is eccentrically rotated. If it is necessary to adjust the radius of curvature of the polishing wheel, the limiting member is loosened to rotate the sleeve relative to the indexing plate, as shown in FIG. 8-10, and the limiting column 310 is curved. The limitation of the hole can only be moved in the adjusting hole of the indexing plate, so that the eccentricity between the connecting shaft 360 and the rotating shaft 210 in the second shaft hole 336 is changed, thereby achieving the purpose of adjusting the radius of curvature of the polishing wheel. Further changing the running track of the polishing wheel to achieve different polishing effects, and when the resistance of the polishing wheel on the connecting shaft 360 is greater than the rated resistance, the clutch adjusting block 350 fixedly connected with the connecting shaft 360 rotates relative to the eccentric adjusting piece to avoid polishing. The force on the wheel is too large to cause deep polishing scratches on the polished surface, further improving the good polishing effect, reducing the swing amplitude, eliminating the aperture, and not leaving the polishing marks.

The eccentric adjusting piece 320 is pressed against the clutch adjusting block 350 by the spring 340 to form a clutch structure, and the spring 340 is over-adjusted to adapt to more complicated curved surface work. When the polishing wheel encounters large resistance during polishing and grinding, the clutch is engaged. The adjustment block 350 is slipped to rotate the clutch adjustment block 350 relative to the eccentric adjustment piece 320 to prevent the force on the polishing wheel from being too large to cause a deep polishing flaw on the polishing surface. In order to apply a grinding force to the polishing wheel, it is possible to prevent the side of the tray and the polishing wheel from sliding, and it is possible to convey the connection of the eccentric moment, and to increase the clutch structure, both double (direction) rotation and powerful Rotating throw The base of the light wheel is more irregular and complex, achieving a grinding force close to unidirectional rotation. With the addition of this mechanism, it is only necessary to replace the special polishing wheel from grinding to polishing.

Further, as shown in FIG. 3, FIG. 5, the bearing 370 is sleeved on the connecting shaft 360, the connecting shaft 360 is provided with a second circlip 380, and the second circlip 380 is located at the bearing 370. Between the clutch adjustment blocks 350, the eccentric sleeve 330 is disposed on the bearing 370 and the clutch adjustment block 350. By providing the bearing 370, the clutch adjustment block 350 and the connecting shaft 360 are rotated more smoothly with respect to the eccentric adjustment piece 320 and the eccentric sleeve 330, and the second circlip spring 380 is disposed between the bearing 370 and the clutch adjustment block 350 to restrict the clutch. The axial degrees of freedom of the block 350 and the bearing 370 are adjusted so that the two processes do not interfere with each other.

As shown in FIG. 5, the eccentric adjusting piece of the embodiment includes an abutting disk 328 and a coupling plate 329 disposed on the abutting disk 328. The abutting disk 328 is different from the center line of the coupling disk 329, and the spring 340 Abutting on the abutment disk 328, the coupling disk 329 is engaged with the clutch adjustment block 350, and the through hole 321 is disposed on the abutment disk 328. That is, the abutting disk 328 is coaxially engaged with the first shaft hole 220, and the coupling disk 329 is eccentrically connected to the clutch adjusting block 350 in a half-joint manner.

As shown in FIG. 4 and FIG. 5, the coupling plate 329 is provided with a first tapered groove 322, and the first tapered groove 322 is provided with a first conical projection 323, and the clutch adjustment block 350 faces the eccentricity. The end surface of the adjusting piece 320 has a tapered shape matching the first tapered groove 322, and the second adjusting surface of the clutch adjusting block 350 facing the eccentric adjusting piece 320 is provided with a second cone matching the first tapered boss 323. Shape groove 351. In this way, the eccentric adjusting piece 320 and the clutch adjusting block 350 can be interlocked under the pressing force of the spring 340 under normal conditions, and the connection is more reliable, which can meet the polishing and polishing requirements and can effectively avoid excessive polishing and grinding.

As shown in FIGS. 4 and 5, the grinding and polishing mechanism further includes a split pin 390 having a first through hole 353 extending through a radial line thereof in a radial direction thereof, the connecting shaft A second through hole 364 is formed in the radial direction of the shaft, and the through hole 390 is disposed in the first through hole 353 and the second through hole 364. In this embodiment, the clutch adjustment block 350 is fixed on the connecting shaft 360 by the split pin 390, so that the relative rotation between the clutch adjusting block 350 and the connecting shaft 360 cannot be performed. By adjusting the opening degree of the split pin 390, the connection between the two can be made. The degree of tightness is adaptively adjusted, and the use is more convenient; of course, according to actual needs, the clutch adjustment block 350 and the connecting shaft 360 can be fixedly connected by other means, such as using a key or a positioning pin.

As shown in FIG. 5, the connecting shaft 360 includes a first shaft segment 361, a second shaft segment 362 and a third shaft segment 363 which are sequentially connected, and the diameter of the first shaft segment 361 is smaller than the diameter of the second shaft segment 362. The diameter of the second shaft segment 362 is smaller than the diameter of the third shaft segment 363, and the first tapered boss 323 is provided with a first mounting hole 324 matching the first shaft segment 361, the second cone A second mounting hole 352 is defined in the slot 351 to match the second shaft section 362. The second shaft section 362 is provided with a second annular groove 3622 in the middle. The second retaining spring 380 is disposed in the annular groove. The bearing 370 is sleeved on the second shaft section 362 and located between the third shaft section 363 and the second circlip spring 380. The clutch adjustment block 350 is sleeved on the second shaft section 362 and located on the first shaft. Between the segment 361 and the second circlip 380, and the clutch adjustment block 350 is fixed to the second shaft segment 362 by a split pin 390, the first shaft segment 361 extends into the first mounting hole 324. The connecting shaft 360 is set as three shaft segments having different diameters, and the positioning and positioning are performed by the joints of the different shaft segments, the bearing 370 is limited by the third shaft segment 363, and the first shaft segment 361 extends into the first mounting hole. The depth of 324 is limited by the end face of the second shaft section 362, so that assembly of each part can be realized quickly and accurately, and assembly efficiency and accuracy are improved.

As shown in FIG. 4 and FIG. 5, the eccentricity adjusting piece 320 is provided with a receiving groove 325 on the end surface of the clutch adjusting block 350. The receiving groove 325 is provided with a fixing hole 326. The spring 340 is a conical spring. The large end of the conical spring is adjacent to the eccentric tab 320, and the end of the large end of the conical spring is engaged in the fixing hole 326. By arranging the receiving groove 325 and the fixing hole 326, the spring 340 can be restrained, and a conical spring is disposed at the same time, so that the thickness of the spring 340 in the compressed state is as thin as possible, and the inner space height of the first shaft hole 220 is effectively saved. The entire organization is more compact and the performance is more stable.

As shown in FIG. 3 and FIG. 7 , one end of the eccentric sleeve 330 away from the eccentric adjustment piece 320 is provided with a shaft seal 332 , and the third shaft section 363 extends through the shaft seal 332 to extend out the eccentric sleeve 330 , and A threaded hole is formed in an end surface of the connecting shaft 360 away from the eccentric adjusting piece 320. The inside of the eccentric sleeve 330 is protected by the shaft seal 332, and dust or the like is prevented from being subjected to internal parts. In the embodiment, the threaded holes are internally threaded holes for connecting the polishing wheel.

As shown in FIG. 3 and FIG. 7 , the grinding and polishing mechanism further includes a first circlip 50. The first end of the first shaft hole 220 away from the rotating shaft 210 is provided with a first annular groove 222, and the first circlip 50 is disposed. Provided in the first annular groove 222, and the first circlip 50 is blocked from the eccentric sleeve 330 to limit the eccentric sleeve 330 Positioned within the first shaft hole 220. The eccentric sleeve 330 is restrained in the sleeve 20 by the first circlip spring 50, so that the eccentric sleeve 330 and the sleeve 20 can be rotated relative to each other without axial movement. Of course, the connection manner is not limited to The first circlip 50 is limited in position, and the eccentric sleeve 330 can be restrained in the sleeve 20 by using an end cover such as a hole. As shown in FIG. 1 and FIG. 3, the eccentric bushing 330 is further provided with a circlip pliers avoiding groove 334 near the end surface of the first circlip spring 50. When the eccentric bushing 330 is assembled, the eccentric bushing 330 is prevented from being scratched, which affects the appearance of the product.

As shown in FIG. 3, FIG. 4, the limiting member 40 includes a positioning bead 410, a fixing base 420, an elastic member 430 and an adjusting pin 440. The fixing base 420 is fixed on the outer wall of the sleeve 20 and adjacent to In the indexing plate 10, the end surface of the fixing base 420 near the sleeve 20 is a bottom end, and the bottom end of the fixing base 420 is provided with a mounting groove 422, and the bottom wall of the mounting groove 422 is provided with a through hole. a third through hole 424 is defined in the mounting slot 422. The adjusting slot 426 is disposed in the mounting slot 422 and is adjusted. The top end of the pin 440 protrudes from the third through hole 424, and the elastic member 430 is located between the outer wall of the sleeve 20 and the bottom end of the adjusting pin 440. When the adjusting pin 440 is pressed, the positioning bead 410 The positioning hole 426 is partially inserted into the positioning hole 120 of the indexing plate 10 when the adjusting pin 440 is loosened. The fixing seat 420 is provided with a bump on both sides of the fixing base 420. The screw passes through the protrusion to lock the fixing base 420 outside the sleeve 20, and the outer wall of the sleeve 20 contacting the fixing seat 420 is a plane, and the plane is A threaded hole matching the screw is provided, and a groove matching the bottom end of the adjusting pin 440 is further disposed on the plane, and the bottom wall of the groove is provided with a blind hole matched with the elastic member 430 for adjusting the pin The 440 and the elastic member 430 are positioned.

When it is necessary to adjust the rotational radius of curvature of the polishing wheel, the top end of the adjusting pin 440 is pressed. Since the elastic member 430 is disposed between the adjusting pin 440 and the outer wall of the sleeve 20, the elastic member 430 is compressed during pressing, and the adjusting pin 440 is axially The direction movement changes its contact position with the positioning post, so that the positioning space is allowed to enter the positioning post in the mounting groove 422, and the connection restriction between the sleeve 20 and the indexing plate 10 is released, so that the sleeve 20 can be relatively indexed. 10, after the sleeve 20 is rotated into position, the adjusting pin 440 is released, the adjusting pin 440 is automatically returned by the elastic member 430, and the positioning bead 410 is synchronously pushed during the returning process, so that a part of the positioning bead 410 enters the current position. In the positioning hole 120 of the position, the sleeve 20 is caught by the positioning post on the indexing plate 10, so that the sleeve 20 cannot rotate relative to the indexing plate 10. The limit structure can be locked and released in a convenient and fast state. The operation is efficient and efficient. According to actual needs, the limiting member 40 of other structures can also be used to switch both the sleeve 20 and the indexing plate 10 in a state of relative rotation and non-relative rotation, such as a projection on the sleeve 20. A protruding hole corresponding to the positioning hole 120 is disposed on the protruding portion. When the relative rotation is not required, the locking pin is caught in the locking hole and the positioning hole 120. When relative rotation is required, the locking pin can be pulled out.

As shown in FIG. 3 and FIG. 7 , in the embodiment, the elastic member 430 is a telescopic spring, and other components capable of realizing the rebound function can be selected according to actual needs. The bottom end of the adjusting pin 440 is provided with a positioning slot 441. The elastic member 430 extends into the positioning slot 441 and abuts against the bottom wall of the positioning slot 441. The elastic member 430 is guided while being positioned in the groove.

As shown in FIG. 7, the adjustment pin 440 of the embodiment includes a first pin segment 442, a second pin segment 444 and a third pin segment 446 which are sequentially connected, and the first pin segment 442 extends the third pass. The hole 424 is pressed against the elastic member 430, and the diameter of the second pin segment 444 is gradually increased from the first pin segment 442 to the third pin segment 446. The second pin segment 444 has a small tapered shape with a large end and a bottom end. When the first pin segment 442 is not pressed, the large end of the second pin segment 444 abuts the positioning bead 410 to be pushed into the positioning hole 120, and presses the first pin. The segment 442, the second pin segment 444 is moved downward, and the receiving space is gradually released, and the positioning bead 410 is disengaged from the positioning hole 120 into the receiving groove 325. According to requirements, the adjustment pin 440 can also adopt a convex hull structure in which a circular arc transition is arranged in the middle, and the positioning bead 410 is pressed by the convex hull.

Further, as shown in FIGS. 3, 4, 6, and 7, the polishing and polishing mechanism further includes a transition joint 60 and a third retaining spring 70. The indexing disc 10 is provided with a connecting hole 140, and the rotating shaft 210 The other end of the transition connector 60 is connected to the main body of the polishing machine, and the other end of the rotating shaft 210 is adjacent to the outer wall of one end of the transition connector 60. 212 . The third circlip 70 is disposed in the third annular groove 212 , and the third circlip 70 is blocked outside the indexing plate 10 . The transition joint 60 is a structure with a threaded intermediate hexagonal disc at the middle ends, one end is used for screwing with the rotating shaft 210, the other end is for connecting with the polishing machine main body, and the indexing disc 10 is restricted by the third circlip 70. The axial movement makes the indexing plate 10 and the sleeve 20 close to each other and can only rotate relative to each other. As shown in FIG. 6 and FIG. 8 , a groove 130 is defined in an end surface of the indexing disk 10 adjacent to the third circlip 70, and the connecting hole 140 is disposed in the groove 130, and the groove 130 is Two limiting stations 132 are disposed on the inner wall along the circumferential direction thereof, and the two ends of the third card spring 70 are located between the two limiting stations 132. Through the limit station 132 The range of rotation of the third circlip 70 is restricted, and the friction with the indexing disk 10 is reduced.

As shown in FIG. 8-10, the adjustment hole 110 includes an inner hole 112 and an outer hole 114. The inner hole 112 is closer to the rotating shaft 210 than the outer hole 114, and the inner hole 112 and the outer hole 114 have larger diameters. The diameter of the limiting pin, the inner hole 112 and the outer hole 114 are in transient communication. The adjusting hole 110 has to satisfy the limitation of the limiting pin, and the adjusting hole 110 cannot interfere with the limiting pin when the sleeve 20 rotates to change the eccentricity with respect to the indexing plate 10.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

An abrasive polishing mechanism characterized by comprising

An indexing plate, the indexing plate is provided with an adjusting hole and a plurality of positioning holes;

a sleeve, the first end surface of the sleeve is provided with a rotating shaft for connecting with the driving mechanism, and the second end surface is provided with a first shaft hole which is eccentric with the center line, and the rotating shaft and the indexing plate are rotatably connected An arcuate hole is defined in the first end surface of the sleeve, and the sleeve is engaged with the positioning hole on the indexing plate by the limiting member;

An eccentric sleeve, an eccentric adjusting piece and a spring, wherein the eccentric sleeve, the eccentric adjusting piece and the spring are disposed in the first shaft hole, and the eccentric sleeve is provided with a second shaft hole eccentric with the center line thereof, the first a bearing and a clutch adjusting block matched with the eccentric adjusting piece are disposed in the two-axis hole, the spring end is abutted on the sleeve, and the other end is abutted on the eccentric adjusting piece, and the eccentric adjusting piece is provided with a through hole;

a connecting shaft, one end of the connecting shaft is disposed on the bearing, the clutch adjusting block and the eccentric adjusting piece, the other end is used for connecting with the polishing wheel, the clutch adjusting block is fixedly connected with the connecting shaft, the bearing, the eccentric adjusting piece and the connecting shaft Rotatable connection

a limiting post, one end of the limiting post is disposed on the eccentric sleeve, and the other end is sequentially disposed in the through hole, the arc hole and the adjusting hole.
The polishing and polishing mechanism according to claim 1, wherein the eccentric adjusting piece comprises an abutting disk and a coupling plate disposed on the abutting disk, the abutting disk being different from a center line of the coupling disk, the spring Abutting on the abutment plate, the coupling plate cooperates with the clutch adjustment block, and the through hole is disposed on the abutment plate.
The polishing and polishing mechanism according to claim 2, wherein the coupling disc is provided with a first tapered groove, and the first tapered groove is provided with a first tapered boss, and the clutch adjusting block The end surface facing the eccentric tab has a tapered shape matching the first tapered groove, and the clutch adjusting block faces the end surface of the eccentric tab with a second tapered groove matching the first tapered boss.
The polishing and polishing mechanism according to claim 1, further comprising a split pin having a first through hole extending through a radial line thereof in a radial direction thereof on the clutch shaft a second through hole penetrating through the axial line thereof is disposed along a radial direction thereof, and the split pin is disposed in the first through hole And in the second through hole.
The polishing and polishing mechanism according to claim 3, wherein the connecting shaft comprises a first shaft section, a second shaft section and a third shaft section which are sequentially connected, wherein the diameter of the first shaft section is smaller than the second shaft a diameter of the segment, a diameter of the second shaft segment being smaller than a diameter of the third shaft segment, the first tapered boss being provided with a first mounting hole matching the first shaft segment, the second tapered groove A second mounting hole is formed in the second shaft section, and the bearing sleeve and the clutch adjusting block are sleeved on the second shaft section, and the first shaft section extends into the first mounting hole.
The polishing and polishing mechanism according to claim 1, wherein the eccentricity adjusting piece is provided with a receiving groove on an end surface of the clutch adjusting block, and the fixing groove is provided with a fixing hole, and the spring is a conical spring. The large end of the conical spring is adjacent to the eccentric tab, and the end of the large end of the conical spring is engaged in the fixing hole.
The polishing and polishing mechanism according to claim 5, wherein one end of the eccentric sleeve away from the eccentric tab is provided with a shaft seal, and the third shaft section extends through the shaft seal to extend the eccentric sleeve.
The polishing and polishing mechanism according to claim 7, wherein the first axial hole is provided with a first annular groove near the inner wall of the shaft seal, and the first annular groove is provided with a first circlip, and the first A circlip stop limits the eccentric sleeve within the first shaft bore outside the eccentric sleeve.
The polishing and polishing mechanism according to claim 8, wherein the eccentric sleeve is provided with a circlip forceps escape groove adjacent to an end surface of the first circlip.
The polishing and polishing mechanism according to any one of claims 1 to 9, characterized in that the end surface of the connecting shaft away from the eccentric adjusting piece is provided with an internally threaded hole which is coupled with the polishing wheel.