CN208179334U - It is a kind of for processing the polishing rod of waist-shaped hole - Google Patents
It is a kind of for processing the polishing rod of waist-shaped hole Download PDFInfo
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- CN208179334U CN208179334U CN201820669011.2U CN201820669011U CN208179334U CN 208179334 U CN208179334 U CN 208179334U CN 201820669011 U CN201820669011 U CN 201820669011U CN 208179334 U CN208179334 U CN 208179334U
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- shaped hole
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Abstract
The utility model provides a kind of for processing the polishing rod of waist-shaped hole, the polishing rod includes upper end and the polishing mill skin that CNC processes the connected metal barred body of axis, is sheathed on the latex pipe sleeve of metal barred body lower end and is wrapped in outside latex pipe sleeve, multiple small bullets are provided on the outer surface of polishing mill skin, and the polishing mill skin is axially divided into 5-15 annular machining area on length direction；When carrying out polishing operation using above-mentioned polishing rod, first polishing rod is moved in waist-shaped hole and polishing mill skin is contacted with the hole wall of waist-shaped hole, then driving polishing rod spins and does circulation circumferential movement in waist-shaped hole, constantly spraying cooling liquid is simultaneously to achieve the purpose that cooling and assist polishing, after the polishing mill skin of a machining area is worn failure, it is movable to another machining area and continues operation.The utility model can effectively improve production efficiency, good to the polishing effect of bevelling waist-shaped hole, meet the requirement of product roughness.
Description
Technical field
The utility model relates to hole wall processing technique fields, and in particular, to a kind of for processing the polishing rod of waist-shaped hole.
Background technique
Currently, the related application of glass back plate and touch screen is increasingly extensive, thereon aperture in electronic product industries such as mobile phones
The structure of (such as camera, HOME key) also becomes increasingly complex.A kind of existing bevelling waist-shaped hole on glass mobile phone faceplate,
It is additionally arranged the flare openings being inclined outwardly in the structure basis of common waist-shaped hole, in order to pacify with other components
Positioning assembling when dress, while corner being avoided to damage；But the structure also increases accordingly the difficulty of processing of waist-shaped hole inner wall, leads
Cause the unstable product quality produced.
Traditional polishing method is as follows: the mobile phone faceplate for completing CNC sharp processing being transferred on special polishing machine, is led to
The mill skin for crossing surfacing carries out sanding and polishing to waist-shaped hole inner wall, while a large amount of cerium oxide fine particles are added as polishing medium.
The product polishing that this method processes is ineffective, and roughness is higher, mirror effect is poor；In addition due to the bevelling position of waist-shaped hole
It is set to bevel structure, easily form the polishing dead angle of mill skin and then causes polishing effect uncontrollable, CPK value (i.e. process capability index,
Refer to the actual processing ability that process is within a certain period of time under stable state) it is relatively low, in order to ensure product quality, often need
It wants the bevelling position of needle waist-shaped hole individually to be processed or done over again again to underproof product, complicates production routine.
Some factories improve traditional burnishing device and method, and mill skin is replaced to carry out polishing operation with hairbrush,
Although reducing the presence at polishing dead angle to a certain extent, so that polishing effect is more uniform, hairbrush itself is for hole wall
Damage it is very big, obviously polishing scratch can be left during the polishing process, had no for improving Hole Wall Roughness and mirror effect
It helps, or even can also play reaction.
Utility model content
The purpose of this utility model is to provide a kind of easy to use and to bevelling waist-shaped hole generation excellent polishing effect
Polishing rod, to solve the problems, such as to propose in background technique.
To achieve the above object, the utility model provides a kind of for processing the polishing rod of waist-shaped hole, including upper end with
The connected metal barred body of CNC processing axis is sheathed on the latex pipe sleeve of metal barred body lower end and is wrapped in the emulsion tube
Skin is ground in polishing outside set；Multiple small bullets are provided on the outer surface of the polishing mill skin.
Preferably, the axial length of the polishing mill skin is 5-15 times of waist-shaped hole depth, and correspondingly, skin is ground in the polishing
Axially it is divided into the machining area of 5-15 annular on length direction.
Preferably, the bullet is tetragonous wimble structure and is arranged using the arrangement mode of linear array.
Preferably, the height of the bullet is 1-2mm, and the bottom surface of the bullet is square and its side length is 1.5-
2.5mm, the distance between the side length of adjacent conical body bottom surface are 1.5-2.5mm.
The stock size of waist-shaped hole is as follows on existing product: the angle between bevelling and vertical direction is 40~50 °, bevelling
Length is 0.1-0.2mm.The size requirement of polishing rod epicone body must be corresponding with product size, could obtain best throwing
Light effect.
Technical solution provided by the utility model at least has the following beneficial effects:
1, the utility model is by being arranged the bullet of a large amount of small sizes in mill epidermis face to substitute original polishing medium,
Not only reduce dust pollution, and the use due to getting rid of polishing powder limits, it only need to can by simple tool changing operation
It realizes on CNC board to the sharp processing of product and the integrated operation of sanding and polishing, no longer needs to that special throwing is additionally arranged
Equipment reduces capital investment and space hold.
2, using bullet as polishing medium, itself included angle of taper can ensure that waist-shaped hole the utility model
Polishing without dead angle for bevelling position, is bonded from the waist-shaped hole perfection with different bevelling angles, and entire polishing process disposably adds
Work in place, simplifies production process, improves production efficiency；In addition, compared to the polishing medium moveing freely, bullet itself
The a part for just belonging to polishing mill skin, has higher controllability in polishing precision and polishing effect.
3, since the sharp processing process of entire polishing process and product combines, the knot of CNC inherently is relied on
Structure, the utility model cooperates coolant liquid when in use, it can be achieved that cooling down of the polishing rod under high speed rotation and certain
Corrosive effect, so that the bevelling position of kidney slot reaches excellent mirror effect, roughness is significantly reduced, and CPK value significantly improves,
Reliable guarantee is provided for batch production.
4, the utility model is adding a pipe made of soft elastic material between polishing mill skin and metal barred body
Set can realize that polishing rod is contacted in the deformation of kidney slot any position in polishing operation, be conducive to each position in hole and obtain
To fully polishing.
5, the polishing rod of the utility model be divided into along the axial length it is multiple wide and with the matched processing of waist-shaped hole depth
Region reduces the replacement frequency of polishing rod, is reduced as far as the number that production procedure is interrupted, and improves production efficiency.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, drawings discussed below is only some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings, in which:
Fig. 1 is the structural schematic diagram of metal barred body described in the utility model；
Fig. 2 is the structural schematic diagram of latex tube described in the utility model；
Fig. 3 is the structural schematic diagram of polishing mill skin described in the utility model；
Fig. 4 is structural schematic diagram when polishing rod described in the utility model assembles；
Fig. 5 is the structural schematic diagram of the mobile phone faceplate in the utility model with bevelling waist-shaped hole；
Fig. 6 is the operation schematic diagram of polishing rod described in the utility model；
In figure: 01 waist-shaped hole, 1 metal barred body, 2 latex pipe sleeves, 3 polishing mill skins, 31 bullets.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Comparative example 1
Traditional unthreaded hole method uses homemade simple polishing machine, will after completing the process of CNC refine shape and pass
Ceria oxide powder is added as polishing medium, the concentration values of ceria oxide powder into polishing machine in transferred product in water
Range is 1.18~1.20g/mL.Rough polishing is carried out to hole wall with bristle bar first, then uses common white mill skin stick (i.e. not again
Pipe sleeve containing latex) finishing polish is carried out to hole wall, the revolving speed of barred body is 3000/rpm when polishing.Roughness after product polishing is
20nm and size control tolerance it is larger, the above-mentioned processing to product hole location needs CNC and polishing machine to be used cooperatively, and occupied space is big
And every equipment need to be equipped with an operator, equipment maintenance cost under the working environment with a large amount of molecules is high.
Embodiment 1
It is a kind of for processing the polishing rod of waist-shaped hole referring to Fig. 1-Fig. 6, including the connected metal in upper end and CNC processing axis
Barred body 1, the latex pipe sleeve 2 for being sheathed on 1 lower end of metal barred body and the polishing being wrapped in outside the latex pipe sleeve 2 mill
Skin 3.
Multiple small bullets 31 are provided on the outer surface of the polishing mill skin 3, the bullet 31 is tetragonous
Wimble structure and the arrangement mode setting for using linear array.In the present embodiment, the bottom of the bullet 31 is 2mm × 2mm
Square and its height be 1.5mm, the angle of adjacent two seamed edges in 31 top of the bullet is 25 °, two adjacent cones
Distance between the side length of body bottom surface is 2.1mm.
In the present embodiment, the axial length of the polishing mill skin 3 is 10 times of 01 depth of waist-shaped hole, correspondingly, described
Polishing mill skin 3 is axially divided into 10 annular machining areas on length direction, and be successively labeled as from top to bottom the tenth plus
Work area domain, the 9th machining area, the 8th machining area, the 7th machining area, the 6th machining area, the first machining area, second
Machining area, third machining area, the 4th machining area and the 5th machining area.
Polishing is carried out to the waist-shaped hole on mobile phone faceplate using above-mentioned polishing rod, is specifically comprised the following steps:
1) mobile phone faceplate that sharp processing is completed continues to be placed on CNC board；
2) axis is processed by CNC polishing rod is moved in waist-shaped hole, and the polishing on polishing rod is made to grind skin and waist-shaped hole
Hole wall contact；
3) axis drive polishing rod spin is processed by CNC and does circulation circumferential movement, while constantly spray in waist-shaped hole
Coolant liquid is to achieve the purpose that cooling and assist polishing, job parameter are as follows: polishing rod spin revolving speed 5000/rpm, feed speed
F300, circumferential 2 circle of circulation；
4) mobile phone faceplate that waist-shaped hole polishing operation is completed is taken out, is repeated the above steps, wherein each polishing rod is equal
Polishing operation is carried out ascendingly according to the number designation of machining area, and 10 flake products can be processed in each machining area.
In the present embodiment, the coolant liquid is identical as the coolant liquid used when mobile phone faceplate sharp processing.The cooling
The pH value of liquid is 8~9, itself is very little for the corrosive effect of mobile phone faceplate, but in the high-speed rotation of polishing rod
In, due to the quick friction of polishing mill skin and glass material, alkaline coolant liquid produces microfabricated chemical reactor as friction media, matches
The grinding effect for closing bullet makes waist-shaped hole inner wall smoothened, to reach the mirror finish effect of glass.
The product obtained through this embodiment, waist-shaped hole inner wall polish uniformly everywhere, and roughness reaches 1nm, and polishing is steady
Qualitative size CPK reaches 1.33 or more, hence it is evident that is better than conventional machining device and method.
Comparative example 2
Mobile phone faceplate is processed using method in the same manner as in Example 1, on polishing rod used in addition to bullet
Other structures it is identical as the polishing rod in embodiment 1.Bullet size in this comparative example is as follows: the bottom of bullet is
The square of 2mm × 2mm and its height are 0.8mm, and the angle of adjacent two seamed edges is 25 ° at the top of bullet, adjacent two
Distance between the side length of bullet bottom surface is 1.2mm；Compared to embodiment 1, taper shape in this comparative example is smaller, arrangement
It is even closer.
Mobile phone faceplate after processing is detected, it is found that the bevelling polishing effect of waist-shaped hole thereon is uneven, especially
Repeatedly occur polishing situation not in place positioned at the partial region of bevelling outer fix, such as needs to polish the waist-shaped hole of 0.1mm
Its polishing length of bevelling only has 0.06~0.08mm, product processing quality decline, and yields reduces.Meanwhile the size of bullet
Smaller, the requirement for machining accuracy is also higher, wears the frequency of replacement faster, poorer than embodiment 1 on practicability.
Comparative example 3
Mobile phone faceplate is processed using method in the same manner as in Example 1, on polishing rod used in addition to bullet
Other structures it is identical as the polishing rod in embodiment 1.Bullet size in this comparative example is as follows: the bottom of bullet is
The square of 2mm × 2mm and its height are 0.22mm, and the angle of adjacent two seamed edges is 25 ° at the top of bullet, adjacent two
Distance between the side length of bullet bottom surface is 2.8mm；Compared to embodiment 1, taper shape in this comparative example is bigger, arrangement
It is more loose.
Mobile phone faceplate after processing is detected, although meeting expection to the polishing effect of waist-shaped hole bevelling, by
It is fixed in the size that product need to polish, the position and size that bullet itself is worn also are fixed, therefore polish mill
There are many Pi Shangyou, and position is not available at all, and part waste is serious, and the replacement frequency for grinding skin increases, and embodiment is compared on practicability
1 is poor.
The above is only the preferred embodiment of the present invention, is not intended to limit the patent protection model of the utility model
It encloses, for those skilled in the art, the present invention may have various modifications and changes.In the spirit of the utility model
Within principle, any improvement made by using the description of the utility model and the drawings or equivalent replacement, directly or
It is used in other relevant technical fields indirectly, should all include in the scope of patent protection of the utility model.
Claims (4)
1. a kind of for processing the polishing rod of waist-shaped hole, which is characterized in that including the connected metal barred body in upper end and CNC processing axis
(1), it is sheathed on the latex pipe sleeve (2) of metal barred body (1) lower end and is wrapped in the external throwing of the latex pipe sleeve (2)
Tarry matter skin (3)；Multiple small bullets (31) are provided on the outer surface of polishing mill skin (3).
2. according to claim 1 for processing the polishing rod of waist-shaped hole, which is characterized in that the axis of polishing mill skin (3)
To 5-15 times that length is waist-shaped hole (01) depth, correspondingly, polishing mill skin (3) is axially divided into 5- on length direction
15 annular machining areas.
3. according to claim 2 for processing the polishing rod of waist-shaped hole, which is characterized in that the bullet (31) is tetragonous
Wimble structure and the arrangement mode setting for using linear array.
4. according to claim 3 for processing the polishing rod of waist-shaped hole, which is characterized in that the height of the bullet (31)
Bottom surface for 1-2mm, the bullet (31) is square and its side length is 1.5-2.5mm, between the side length of adjacent conical body bottom surface
Distance be 1.5-2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820669011.2U CN208179334U (en) | 2018-05-07 | 2018-05-07 | It is a kind of for processing the polishing rod of waist-shaped hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820669011.2U CN208179334U (en) | 2018-05-07 | 2018-05-07 | It is a kind of for processing the polishing rod of waist-shaped hole |
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| Publication Number | Publication Date |
|---|---|
| CN208179334U true CN208179334U (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820669011.2U Active CN208179334U (en) | 2018-05-07 | 2018-05-07 | It is a kind of for processing the polishing rod of waist-shaped hole |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450062A (en) * | 2018-05-07 | 2019-11-15 | 蓝思科技股份有限公司 | It is a kind of for processing the polishing rod and polishing method of waist-shaped hole |
| CN110684243A (en) * | 2019-09-26 | 2020-01-14 | 东莞市铭辉自动化设备有限公司 | Special rubber sleeve composition for grinding and polishing mobile phone glass |
-
2018
- 2018-05-07 CN CN201820669011.2U patent/CN208179334U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450062A (en) * | 2018-05-07 | 2019-11-15 | 蓝思科技股份有限公司 | It is a kind of for processing the polishing rod and polishing method of waist-shaped hole |
| CN110684243A (en) * | 2019-09-26 | 2020-01-14 | 东莞市铭辉自动化设备有限公司 | Special rubber sleeve composition for grinding and polishing mobile phone glass |
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