CN214292542U - Multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine - Google Patents

Multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine Download PDF

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Publication number
CN214292542U
CN214292542U CN202022683115.9U CN202022683115U CN214292542U CN 214292542 U CN214292542 U CN 214292542U CN 202022683115 U CN202022683115 U CN 202022683115U CN 214292542 U CN214292542 U CN 214292542U
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China
Prior art keywords
positioning
polishing
bracelet
position adjusting
base
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Withdrawn - After Issue
Application number
CN202022683115.9U
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Chinese (zh)
Inventor
刘华昌
朱冬亮
陈文娟
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Lao Feng Xiang Dongguan Jewelry Co ltd
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Lao Feng Xiang Dongguan Jewelry Co ltd
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Priority to CN202022683115.9U priority Critical patent/CN214292542U/en
Application granted granted Critical
Publication of CN214292542U publication Critical patent/CN214292542U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

A multi-dimensional precision tungsten drill rotary extrusion type nondestructive bracelet polishing machine is used for polishing bracelet and comprises a polishing device, a driving module and a first positioning device, wherein the bracelet to be processed is arranged on the polishing device, the first positioning device is used for centering and positioning according to the type of the bracelet, the driving module is connected with the polishing device and drives the polishing device to work, and the polishing device is used for polishing the bracelet; the utility model discloses whole processing course automation level is high, effectively improves machining efficiency, and the material of polishing piece adopts tungsten steel or diamond, effectively reduces the loss cost, and polishing effect is brighter moreover, and the colour saturation is more obvious, and the product appearance quality after the processing is effectual, and the practicality is strong, has stronger popularization meaning.

Description

Multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine
Technical Field
The utility model relates to an ornaments processing equipment especially relates to a rotatory extrusion formula of accurate tungsten of multidimension bright machine of harmless bracelet of boring.
Background
A bracelet is a ring-shaped ornament which is made of gold, silver, jade and the like and is worn on a wrist, and most bracelets are made of metal materials. According to the manufacturing materials, the bracelet can be divided into a gold bracelet, a silver bracelet, a jade bracelet, a bracelet with embedded jewels and the like. Bracelets are different from bracelets, which are generally of a one-piece structure, and the bracelets can be combined by a plurality of small pieces to form a chain to be worn on the hand.
For the bracelet made of the existing metal material, most of the bracelets are arranged in a perfect circle, the surface of the bracelet needs to be polished for improving the visual effect, then the existing bracelet polishing procedure mostly adopts manual treatment, the processing quality cannot be guaranteed, the overall processing efficiency is low, and the labor cost is increased.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a rotary extrusion type lossless bracelet polishing machine with a multi-dimensional precision tungsten drill, aiming at the defects in the prior art.
A multi-dimensional precision tungsten drill rotary extrusion type nondestructive bracelet polishing machine is used for polishing bracelet and comprises a polishing device, a driving module, a first positioning device and a bracelet to be processed, wherein the bracelet to be processed is arranged on the polishing device;
the polishing device comprises a base, three groups of polishing parts arranged on the base, a positioning sheet arranged on the base, and a cover plate which is covered on the base and used for limiting the polishing parts, wherein the base is integrally arranged in a disc shape, the upper end surface of the base is provided with three containing grooves, the extending directions of the three containing grooves respectively point to the central position of the base, the extending directions of the containing grooves form the same included angle on the horizontal plane, the base is also provided with a positioning groove, the positioning groove is arranged above one of the containing grooves, the positioning sheet is arranged in the positioning groove, three limiting holes extending inwards are arranged on the outer side surface of the base corresponding to the positions of the three containing grooves, the limiting holes are communicated with the containing grooves, the hole walls of the limiting holes are provided with threads, the base is also provided with a clamping hole and a positioning hole, and the clamping hole and the positioning hole are oppositely arranged in the horizontal direction, the positioning hole is arranged above one accommodating groove, the extending direction of the positioning hole is consistent with that of the accommodating groove, the clamping hole is arranged between the other two accommodating grooves, and the clamping hole penetrates through the base in the vertical direction and extends to the circumferential surface of the base;
each group of polishing piece includes positioning screw, polishing piece and spacing spring, and every group polishing piece is corresponding to be installed on an accepting groove and the spacing hole that corresponds with this accepting groove, the positioning screw is installed on spacing hole, the polishing piece is installed in the accepting groove, spacing spring both ends are supported respectively and are pushed against on positioning screw and polishing piece, the piece of adjusting is equipped with two positioning feet by the tip position, the one end that the piece of adjusting is kept away from the positioning foot is equipped with the ejector pad, the piece of adjusting is installed on the positioning groove, the ejector pad aligns with the positioning hole, two positioning feet of piece of adjusting support respectively on two polishing pieces.
Furthermore, two positioning pins of the positioning sheet are distributed in a U shape, and the end parts of the positioning pins are arranged in an arc shape close to the outer side edge, so that the transverse width of the end parts of the positioning pins is gradually increased.
Furthermore, a push rod is arranged on the upper end face of each polishing block, the positioning feet are abutted against the push rod, when the push rods are extruded inwards, the two polishing blocks matched with the positioning sheets move outwards, the positioning springs compress elastically, and a gap is formed between the polishing blocks.
Furthermore, a plurality of guide grooves are formed in the bottom surface of the cover plate, and the upper end of the push rod is clamped in the guide grooves.
Furthermore, the polishing device further comprises a first air cylinder and a positioning strip, the positioning strip is connected with the first air cylinder, the first air cylinder drives the positioning strip to move forwards and backwards, and the positioning strip extends into the positioning hole from the positioning hole and abuts against the push block in the forward movement process.
The positioning device comprises a first bracket, a second bracket and a second positioning device, wherein the first positioning device is arranged on the first bracket, and the second positioning device is arranged on the second bracket.
Further, the drive module includes driving motor, action wheel, follows driving wheel and belt, the action wheel is installed on driving motor, install on the second support from the driving wheel, grinding device's upper and lower both ends are installed on first support through the bearing to make grinding device can rotate on first support is automatic, action wheel, grinding device's lateral surface is connected to the belt and from the driving wheel, thereby makes the action wheel drive grinding device rotate.
Furthermore, an encoder is arranged on the driving motor.
Further, the first positioning device comprises a mounting seat, a first positioning block and a second positioning block which are arranged on the mounting seat, a third positioning block which is clamped between the first positioning block and the second positioning block, a first return spring, a second return spring, a first positioning rod which is arranged on the first positioning block, and a second positioning rod which is arranged on the second positioning block, wherein the first return spring and the second return spring respectively extrude the first positioning block and the second positioning block from two sides, the third positioning block is matched with the first positioning block and the second positioning block by adopting inclined guide surfaces, when the third positioning block is pushed inwards, the third positioning block pushes the first positioning block and the second positioning block to be away from each other through the inclined guide surfaces, so that the distance between the first positioning rod and the second positioning rod is increased, otherwise, when the third positioning block is loosened, under the action of the first return spring and the second return spring, the first positioning block and the second positioning block are pushed to be close to each other, and then the distance between the first positioning rod and the second positioning rod is reduced.
Furthermore, the second positioning device comprises a positioning motor, a linkage arm and a manipulator, the manipulator is arranged at one end, far away from the second support, of the linkage arm, the positioning motor is connected with the linkage arm, and the positioning motor drives the linkage arm to rotate.
The beneficial effects of the utility model reside in that: through setting up grinding device, drive module, first positioning device, second positioning device, the bracelet of treating processing is installed on grinding device, and first positioning device carries out centering positioning according to the model of bracelet, grinding device polishes the processing to the bracelet, and in the course of working, second positioning device carries out the positioning to the bracelet, makes grinding device can process the bracelet different positions, and whole processing procedure automation level is high, effectively improves machining efficiency, and the material of polishing piece adopts wolfram steel or diamond, effectively reduces the loss cost, and polishing effect is brighter moreover, and the chroma is more obvious, and the product appearance quality after the processing is effectual, and the practicality is strong, has stronger popularization meaning.
Drawings
Fig. 1 is a schematic structural view of a rotary extrusion type lossless bracelet light machine of a multi-dimensional precision tungsten drill of the utility model.
Fig. 2 is a structural schematic diagram of the multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet brightening machine shown in fig. 1 after a part of a shell is removed.
FIG. 3 is a top view of the multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet brightening machine shown in FIG. 2.
Fig. 4 is a schematic structural view of the polishing device of the present invention when being matched with the first positioning device.
Fig. 5 is a schematic structural view of a base and a cover plate of the polishing device.
Fig. 6 is a schematic structural view of the polishing device after the upper cover is removed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 6, the utility model provides a harmless bracelet gloss machine of rotatory extrusion formula of accurate tungsten of multidimension bores for the adversary's bracelet carries out polishing treatment, and it includes grinding device 30, drive module 20, first positioning device 40, second positioning device 50, board 10, first support 60 and second support 70, drive module 20 is connected and drives grinding device 30 work with grinding device 30 first support 60, second support 70 install respectively on board 10, first positioning is installed on first support 60, the second positioning is installed on second support 70. When the bracelet processing device works, a bracelet to be processed is firstly arranged on the grinding device 30, the first positioning device 40 is used for centering and positioning according to the type of the bracelet, the grinding device 30 is used for polishing the bracelet, and the second positioning device 50 is used for positioning the bracelet in the processing process, so that the grinding device 30 can process different positions of the bracelet.
The polishing device 30 comprises a base 31, three groups of polishing elements arranged on the base 31, a positioning sheet 36 arranged on the base 31, and a cover plate 32 covering the base 31 and limiting the polishing elements, wherein the base 31 is integrally arranged in a disc shape, the upper end surface of the base 31 is provided with three receiving grooves 311, the extending directions of the three receiving grooves 311 respectively point to the central position of the base 31, the extending directions of the receiving grooves 311 form the same included angle on the horizontal plane, the base 31 is further provided with a positioning groove 312, the positioning groove 312 is arranged above one receiving groove 311, the positioning sheet 36 is arranged in the positioning groove 312, the outer side surface of the base 31 is provided with three limiting holes 315 extending inwards corresponding to the positions of the three receiving grooves 311, the limiting holes 315 are communicated with the receiving grooves 311, the hole walls of the limiting holes 315 are provided with threads, and the base 31 is further provided with a clamping hole 313 and a positioning hole 314, the locking hole 313 and the positioning hole 314 are disposed opposite to each other in the horizontal direction, the positioning hole 314 is disposed above one of the receiving slots 311 and extends in the same direction as the receiving slot 311, the locking hole 313 is disposed between the two remaining receiving slots 311, and the locking hole 313 penetrates through the base 31 in the vertical direction and extends to the circumferential surface of the base 31.
Each group of polishing pieces comprises a positioning screw 35, a polishing block 33 and a limiting spring 34, each group of polishing pieces is correspondingly arranged on an accommodating groove 311 and a limiting hole 315 corresponding to the accommodating groove 311, specifically, the positioning screw 35 is arranged on the limiting hole 315, the polishing block 33 is arranged in the accommodating groove 311, two ends of the limiting spring 34 respectively abut against the positioning screw 35 and the polishing block 33, and the length of the positioning screw 35 extending into the accommodating groove 311 is adjusted by rotating the positioning screw 35 so as to extrude the limiting spring 34 and change the pressure of the limiting spring 34 on the polishing block 33. The polishing block is made of tungsten steel or diamond, and can achieve the effect of lossless polishing by adopting extrusion of the tungsten steel or the diamond, so that the loss cost is reduced, the polishing effect is brighter, and the color intensity is more obvious.
The positioning piece 36 is provided with two positioning feet 361 near the end portion, the two positioning feet 361 are distributed in a U shape, the end portions of the positioning feet 361 are arranged in an arc shape near the outer side edge, so that the transverse width of the end portions of the positioning feet 361 is gradually increased, one end of the positioning piece 36, which is far away from the positioning feet 361, is provided with a push block 362, the positioning piece 36 is arranged on the positioning groove 312, the push block 362 is aligned with the clamping hole 313, the two positioning feet 361 of the positioning piece 36 respectively abut against the two polishing blocks 33, in order to achieve a better abutting effect, the upper end face of each polishing block 33 is provided with a push rod 331, and the positioning feet 361 abut against the push rod 331. When the pushing block 362 is pressed inwards, the two polishing blocks 33 matched with the positioning piece 36 move outwards, the positioning spring is compressed elastically, a gap is formed between the polishing blocks 33, so that a bracelet can be placed between the polishing blocks 33 from the gap, the pushing block 362 is released, the two polishing blocks 33 return elastically, and the three polishing blocks 33 clamp the bracelet,
the polishing device 30 further includes a first cylinder 37 and a positioning bar 38, the first cylinder 37 is installed on the first support 60, the positioning bar 38 is connected to a piston rod of the first cylinder 37, the first cylinder 37 drives the positioning bar 38 to move forward and backward, and during the forward movement of the positioning bar 38, the positioning bar 38 extends into the positioning hole 314 and abuts against the push block 362. The bottom surface of the cover plate 32 is also provided with a plurality of guide grooves, and the upper end of the push rod 331 is clamped in the guide grooves, so that the polishing block 33 is effectively prevented from falling off from the base 31.
The driving module 20 includes a driving motor 21, a driving wheel 22, a driven wheel 23 and a belt 24, the driving wheel 22 is installed on the driving motor 21, the driven wheel 23 is installed on the second bracket 70, and the upper and lower ends of the polishing device 30 are installed on the first bracket 60 through bearings, so that the polishing device 30 can automatically rotate on the first bracket 60. The belt 24 is connected with the driving wheel 22, the outer side face of the polishing device 30 and the driven wheel 23, so that the driving wheel 22 drives the polishing device 30 to rotate, the driving motor 21 is provided with an encoder, after processing, the polishing device 30 rotates to a specified position, and the bracelet is conveniently placed on the polishing device 30 or taken out of the polishing device 30.
The first positioning device 40 includes a mounting base, a first positioning block 41 and a second positioning block 42 mounted on the mounting base, a third positioning block 43 sandwiched between the first positioning block 41 and the second positioning block 42, a first return spring, a second return spring, a first positioning rod 44 mounted on the first positioning block 41, and a second positioning rod 45 mounted on the second positioning block 42, wherein the first return spring and the second return spring respectively press the first positioning block 41 and the second positioning block 42 from two sides, the third positioning block 43 is matched with the first positioning block 41 and the second positioning block 42 by adopting an inclined guide surface, when the third positioning block 43 is pushed inwards, the third positioning block 43 pushes the first positioning block 41 and the second positioning block 42 away from each other by the inclined guide surface, so that the distance between the first positioning rod 44 and the second positioning rod 45 is increased, otherwise, when the third positioning block 43 is released, under the action of the first return spring and the second return spring, the first positioning block 41 and the second positioning block 42 are pushed to be close to each other, so that the distance between the first positioning rod 44 and the second positioning rod 45 is reduced. The first positioning device 40 further comprises a positioning cylinder, the positioning cylinder is connected to the third positioning block 43 through a connecting rod, and the positioning cylinder drives the third positioning block 43 to move so as to adjust the positions of the first positioning rod 44 and the second positioning rod 45, and further adjust according to different bracelet models.
The second positioning device 50 comprises a positioning motor 51, a linkage arm 52 and a manipulator 53, the linkage arm 52 is arranged on the second support 70 through a bearing, the linkage arm 52 can rotate on the second support 70, the manipulator 53 is arranged at one end, far away from the second support 70, of the linkage arm 52, the positioning motor 51 is connected with the linkage arm 52, and the positioning motor 51 drives the linkage arm 52 to rotate.
When the bracelet polishing machine works, the first air cylinder 37 is started, the first air cylinder 37 drives the positioning strip 38 to move forwards, the positioning strip 38 extends into and abuts against the push block 362 from the positioning hole 314 in the forward movement process, the two polishing blocks 33 are pushed open, a bracelet to be processed is placed between the polishing blocks 33 from a clamping opening, the bracelet is positioned by the first positioning device 40, the push block 362 is loosened by the first air cylinder 37, the bracelet is clamped between the polishing blocks 33, the first positioning device 40 is withdrawn from the bracelet, the driving module 20 drives the polishing device 30 to rotate, the surface of the bracelet is polished, and the bracelet is driven to rotate by the second positioning device 50 through the manipulator 53, so that different positions on the bracelet are moved to the polishing device 30 to be polished.
The beneficial effects of the utility model reside in that: through setting up grinding device 30, drive module 20, first positioning device 40, second positioning device 50, the bracelet of treating processing is installed on grinding device 30, and first positioning device 40 centers on the positioning according to the model of bracelet, grinding device 30 polishes the bracelet, and in the course of working, second positioning device 50 adjusts the position to the bracelet, makes grinding device 30 can process the bracelet in different positions, and whole processing process automation is competent, effectively improves machining efficiency, and the material of polishing piece adopts wolfram steel or diamond, effectively reduces the loss cost, and polishing effect is brighter moreover, and the chroma is more obvious, and the product appearance quality after the processing is effectual, and the practicality is strong, has stronger popularization meaning.
The above-described embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the spirit of the invention, and these are within the scope of the invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims (10)

1. A multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine is used for polishing bracelet, and is characterized by comprising a polishing device, a driving module, a first positioning device, a bracelet to be processed and arranged on the polishing device, wherein the first positioning device is used for centering and positioning according to the type of the bracelet, the driving module is connected with the polishing device and drives the polishing device to work, and the polishing device is used for polishing the bracelet;
the polishing device comprises a base, three groups of polishing parts arranged on the base, a positioning sheet arranged on the base, and a cover plate which is covered on the base and used for limiting the polishing parts, wherein the base is integrally arranged in a disc shape, the upper end surface of the base is provided with three containing grooves, the extending directions of the three containing grooves respectively point to the central position of the base, the extending directions of the containing grooves form the same included angle on the horizontal plane, the base is also provided with a positioning groove, the positioning groove is arranged above one of the containing grooves, the positioning sheet is arranged in the positioning groove, three limiting holes extending inwards are arranged on the outer side surface of the base corresponding to the positions of the three containing grooves, the limiting holes are communicated with the containing grooves, the hole walls of the limiting holes are provided with threads, the base is also provided with a clamping hole and a positioning hole, and the clamping hole and the positioning hole are oppositely arranged in the horizontal direction, the positioning hole is arranged above one accommodating groove, the extending direction of the positioning hole is consistent with that of the accommodating groove, the clamping hole is arranged between the other two accommodating grooves, and the clamping hole penetrates through the base in the vertical direction and extends to the circumferential surface of the base;
each group of polishing piece includes positioning screw, polishing piece and spacing spring, and every group polishing piece is corresponding to be installed on an accepting groove and the spacing hole that corresponds with this accepting groove, the positioning screw is installed on spacing hole, the polishing piece is installed in the accepting groove, spacing spring both ends are supported respectively and are pushed against on positioning screw and polishing piece, the piece of adjusting is equipped with two positioning feet by the tip position, the one end that the piece of adjusting is kept away from the positioning foot is equipped with the ejector pad, the piece of adjusting is installed on the positioning groove, the ejector pad aligns with the positioning hole, two positioning feet of piece of adjusting support respectively on two polishing pieces.
2. The multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet glosser as claimed in claim 1, characterized in that: the two positioning pins of the positioning sheet are distributed in a U shape, and the end parts of the positioning pins are arranged in an arc shape close to the outer edge, so that the transverse width of the end parts of the positioning pins is gradually increased.
3. The multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet glosser as claimed in claim 2, characterized in that: the upper end face of the polishing block is provided with a push rod, the positioning foot is abutted against the push rod, when the push block is extruded inwards, the two polishing blocks matched with the positioning sheet move outwards, the positioning spring is elastically compressed, and a gap is formed between the polishing blocks.
4. The multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet glosser as claimed in claim 3, characterized in that: still be equipped with a plurality of guide slots on the bottom surface of apron, the upper end card of push rod is located in the guide slot.
5. The multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet glosser as claimed in claim 1, characterized in that: the polishing device further comprises a first air cylinder and a positioning strip, the positioning strip is connected with the first air cylinder, the first air cylinder drives the positioning strip to move back and forth, and the positioning strip stretches into the positioning hole and abuts against the push block in the forward movement process.
6. The multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet glosser as claimed in claim 1, characterized in that: the positioning device comprises a first bracket, a second bracket and a second positioning device, wherein the first positioning device is arranged on the first bracket, and the second positioning device is arranged on the second bracket.
7. The multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet glosser as claimed in claim 6, wherein: the drive module includes driving motor, action wheel, follows driving wheel and belt, the action wheel is installed on driving motor, install on the second support from the driving wheel, grinding device's upper and lower both ends are installed on first support through the bearing to make grinding device can rotate on first support is automatic, action wheel, grinding device's lateral surface and follow the driving wheel are connected to the belt, thereby make the action wheel drive grinding device and rotate.
8. The multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet glosser as claimed in claim 7, wherein: and the driving motor is provided with an encoder.
9. The multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet glosser as claimed in claim 1, characterized in that: the first position adjusting device comprises a mounting seat, a first position adjusting block and a second position adjusting block which are arranged on the mounting seat, a third position adjusting block clamped between the first position adjusting block and the second position adjusting block, a first return spring, a second return spring, a first position adjusting rod arranged on the first position adjusting block, and a second position adjusting rod arranged on the second position adjusting block, wherein the first return spring and the second return spring respectively extrude the first position adjusting block and the second position adjusting block from two sides, the third position adjusting block is matched with the first position adjusting block and the second position adjusting block by adopting inclined guide surfaces, when the third position adjusting block is pushed inwards, the third position adjusting block pushes the first position adjusting block and the second position adjusting block to be away from each other through the inclined guide surfaces, so that the distance between the first position adjusting rod and the second position adjusting rod is increased, otherwise, when the third position adjusting block is loosened, under the action of the first return spring and the second return spring, the first positioning block and the second positioning block are pushed to be close to each other, and then the distance between the first positioning rod and the second positioning rod is reduced.
10. The multi-dimensional precision tungsten drill rotary extrusion type lossless bracelet glosser as claimed in claim 6, wherein: the second positioning device comprises a positioning motor, a linkage arm and a manipulator, the manipulator is arranged at one end, far away from the second support, of the linkage arm, the positioning motor is connected with the linkage arm, and the positioning motor drives the linkage arm to rotate.
CN202022683115.9U 2020-11-18 2020-11-18 Multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine Withdrawn - After Issue CN214292542U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022683115.9U CN214292542U (en) 2020-11-18 2020-11-18 Multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022683115.9U CN214292542U (en) 2020-11-18 2020-11-18 Multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine

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Publication Number Publication Date
CN214292542U true CN214292542U (en) 2021-09-28

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Application Number Title Priority Date Filing Date
CN202022683115.9U Withdrawn - After Issue CN214292542U (en) 2020-11-18 2020-11-18 Multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112454148A (en) * 2020-11-18 2021-03-09 老凤祥东莞珠宝首饰有限公司 Multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112454148A (en) * 2020-11-18 2021-03-09 老凤祥东莞珠宝首饰有限公司 Multi-dimensional precise tungsten drill rotary extrusion type nondestructive bracelet polishing machine
CN112454148B (en) * 2020-11-18 2024-10-22 老凤祥东莞珠宝首饰有限公司 Multi-dimensional precise tungsten drill rotary extrusion type lossless bracelet brightening machine

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