Internal positioning driven polishing fixture

Abstract

The present invention provides an internal positioning driven polishing jig, comprising a base, a driven block arranged on the base, the driven block being able to rotate relative to the base, a first positioning column arranged on the driven block for positioning the inner hole of the product, a protective block arranged on the first positioning column for matching with the product, and the first positioning column and the protective block being detachably connected. The present invention has a simple structure, convenient operation, low labor intensity, and effectively saves manpower and time. The product is positioned on the driven block through the inner hole to avoid contact with the appearance of the product and reduce the loss of the jig. The detachable protective block is also convenient for limiting the protection of the product and is not easy to cause bruises, scratches, or even deformation of the product. The surface polishing of the product is uniform, the removal amount is stable, the polishing precision is high, the effect is good, the yield rate and production efficiency of the product are improved, and it is very suitable for the automated production line of the product, reducing the production cost and enhancing the competitiveness of the product.

Description

Technical Field

[0001] The present disclosure relates to a polishing jig, and in particular to an internal positioning driven polishing jig. Background Art

[0002] With the continuous progress of society and the rapid development of science and technology, the market demand for many products is increasing, and the requirements are getting higher and higher. Therefore, it is necessary to ensure product quality and improve production efficiency to meet market demand. Hardware products will be polished after processing, such as some parts of 3C electronic products. Polishing refers to the modification of the workpiece surface using polishing tools and abrasive particles or other polishing media. It can usually be divided into mechanical polishing, chemical polishing and electrochemical polishing. By polishing the workpiece surface, it can remove pollution, oxide layer, shallow marks, etc. on the workpiece surface, reduce the surface roughness of the workpiece, and obtain a bright and smooth surface.

[0003] At present, the polishing of hardware products with inner holes is usually done manually with polishing tools and products such as hand-held polishing wheels. This is inconvenient to operate, labor-intensive, occupies a lot of manpower, takes a long time, and is easy to cause bumps, scratches, or even deformation of the products. Some parts of the products may be polished for too long or not polished at all, the surface removal amount of the products is unstable, the polishing accuracy is low, and the effect is poor, especially for smaller products with strict surface requirements. As a result, the product yield is low, the production efficiency is low, the production cost is high, and the product competitiveness is reduced. Summary of the invention

[0004] The purpose of the present disclosure is to provide an internal positioning driven polishing fixture, which can solve at least one of the above technical problems. The technical solution of the present disclosure is as follows:

[0005] An internal positioning driven polishing fixture includes a base, a driven block is arranged on the base, the driven block can rotate relative to the base, a first positioning column for positioning the inner hole of the product is arranged on the driven block, a protective block for matching with the product is arranged on the first positioning column, and the first positioning column and the protective block are detachably connected.

[0006] In some embodiments, a first bearing matched with the driven block is disposed on the base, and the driven block has a first connecting portion matched with the first bearing.

[0007] In some embodiments, a first groove body for accommodating the first bearing is provided on the base.

[0008] In some embodiments, a first flange is formed between the first connecting portion and the first positioning column.

[0009] In some embodiments, a second groove is disposed on an end surface of the first flange close to the first positioning column.

[0010] In some embodiments, a first positioning platform is provided on the base, a first through hole is provided on the first positioning platform for the first connecting portion to pass through, and a first annular groove matching with the first positioning platform is provided on the end surface of the first flange close to the first connecting portion.

[0011] In some embodiments, a support block is disposed at the bottom of the base.

[0012] In some embodiments, the base includes a lower seat and an upper plate, the lower seat and the upper plate are connected via a positioning pin and a fixing pin, and the first positioning column is located above the upper plate.

[0013] In some embodiments, a second through hole cooperating with the protective block is provided on the first positioning column along its axial direction, a second flange is provided on the top of the protective block, the diameter of the second flange is larger than the diameter of the second through hole, an arcuate groove body with a T-shaped cross section and a first hole body connected to the arcuate groove body in a vertical direction are provided on the end face of the lower seat close to the upper plate, and a second connecting portion cooperating with the arcuate groove body is provided at the bottom of the protective block, and the second connecting portion can pass through the second through hole and the first hole body in sequence.

[0014] In some embodiments, a fourth slot body communicating with the outside is provided on the end surface of the lower seat close to the upper plate.

[0015] The beneficial effects of the present invention are as follows: during use, the jig is installed on the corresponding polishing equipment, the inner hole of the product to be processed is inserted into the first positioning column of the driven block, and then the product is limited and protected by the protective block. When the polishing device on the polishing equipment polishes the product positioned on the protective block, the polishing device will generate a tangential force on the product, so that the product, the driven block and the protective block rotate together relative to the circumference of the base, so that the product can be accurately and comprehensively polished. The structure is simple, the operation is convenient, the labor intensity is low, and manpower and time are effectively saved. The product is positioned on the driven block through the inner hole to avoid contact with the appearance of the product and reduce the loss of the jig. The detachable protective block is also convenient for limiting the protection of the product, and it is not easy to cause bumps, scratches, or even deformation of the product. The surface polishing of the product is uniform, the removal amount is stable, the polishing accuracy is high, and the effect is good. It is especially suitable for small products with strict requirements on the appearance surface, thereby improving the yield and production efficiency of the product. It is very suitable for the automated production line of the product, reducing the production cost and enhancing the competitiveness of the product.

[0016] In addition, in the technical solution disclosed in the present invention, unless otherwise specified, the technical solution can be implemented by adopting conventional means in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The present invention is a three-dimensional diagram of an internal positioning driven polishing fixture according to an embodiment of the present invention.

[0019] Figure 2 It is a partial cross-sectional view of an internal positioning driven polishing fixture according to an embodiment of the present disclosure.

[0020] Figure 3 It is a first stereoscopic view of a lower seat according to an embodiment of the present disclosure.

[0021] Figure 4 It is a second stereoscopic view of the lower seat according to an embodiment of the present disclosure.

[0022] Figure 5 It is a first stereoscopic view of an upper plate according to an embodiment of the present disclosure.

[0023] Figure 6 A second stereoscopic view of an upper plate according to an embodiment of the present disclosure.

[0024] Figure 7 It is a first stereoscopic view of a follower block according to an embodiment of the present disclosure.

[0025] Figure 8 It is a second stereoscopic view of a follower block according to an embodiment of the present disclosure.

[0026] Fig. 9 It is a three-dimensional diagram of a protection block according to an embodiment of the present disclosure.

[0027] Explanation of the numbers in the accompanying drawings: base 1, first slot body 101, first positioning platform 102, first through hole 103, support block 11, third slot body 111, lower seat 12, arc slot body 121, first hole body 122, fourth slot body 123, fifth slot body 124, upper plate 13, second avoidance groove 131, anti-idiot groove 132, indicator arrow 133, driven block 2, first positioning column 21, first connecting part 22, first flange 23, first annular groove 231, second slot body 232, first limiting part 24, first avoidance groove 25, second through hole 26, protective block 3, second flange 31, second connecting part 32, first bearing 4, positioning pin 5, fixing pin 6. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are part of the embodiments of the present disclosure, rather than all of the embodiments, and are only used to explain the present disclosure, and are not used to limit the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0029] In the description of the present disclosure, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "two ends", "both sides", "bottom", "top" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present disclosure. In addition, the terms "first", "second", "superior", "inferior", "primary", "secondary" and the like are used for descriptive purposes only, and can simply be used to more clearly distinguish different components, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0031] Figure 1 is a three-dimensional diagram of an internal positioning driven polishing fixture according to an embodiment of the present disclosure, Figure 2 It is a partial cross-sectional view of an internal positioning driven polishing fixture according to an embodiment of the present disclosure. Figure 3 is a first stereoscopic view of a lower seat according to an embodiment of the present disclosure, Figure 4 is a second stereoscopic view of a lower seat according to an embodiment of the present disclosure, Figure 5 is a first stereoscopic view of an upper plate of an embodiment of the present disclosure, Figure 6 is a second stereoscopic view of an upper plate of an embodiment of the present disclosure, Figure 7 is a first stereoscopic view of a follower block according to an embodiment of the present disclosure, Figure 8 is a second stereoscopic view of a follower block according to an embodiment of the present disclosure, Fig. 9 It is a three-dimensional diagram of a protection block according to an embodiment of the present disclosure.

[0032] Example:

[0033] like Figures 1 to 9 As shown, an internal positioning driven polishing jig according to the present disclosure is schematically shown, which is mainly used for polishing hardware products with inner holes. The jig includes a base 1, on which a driven block 2 is arranged. Usually, a plurality of driven blocks 2 are evenly distributed along the circumferential direction of the base 1. The driven block 2 can rotate circumferentially relative to the base 1. A first positioning column 21 for positioning the inner hole of the product is arranged on the driven block 2. The inner hole of the product is inserted into the first positioning column 21, so that the product is positioned on the driven block 2. A protective block 3 for matching with the product is arranged on the first positioning column 21. The first positioning column 21 is detachably connected to the protective block 3. Before the product is positioned and installed, the protective block 3 is first removed. When the product is positioned on the driven block 2, the protective block 3 is installed on the first positioning column 21 to limit and protect the product. During the polishing process, the corresponding polishing device will generate a tangential force on the product positioned on the driven block 2, so that the product, the driven block 2 and the protective block 3 rotate together relative to the base 1, ensuring that the surface polishing of the product is uniform and the removal amount is stable. The protective block 3 can also prevent the product from being bumped or scratched.

[0034] The number and arrangement of the driven blocks 2 depend on the specific situation. The driven blocks 2 can be one, two or more.

[0035] The base 1 includes a lower seat 12 and an upper plate 13, the lower seat 12 and the upper plate 13 are connected by a positioning pin 5 and a fixing pin 6, the upper plate 13 is located above the lower seat 12, and the first positioning column 21 is located above the upper plate 13. Usually, at least one positioning pin 5 is connected to the center of the lower seat 12 and the upper plate 13 respectively, the lower seat 12 and the upper plate 13 are first positioned by the positioning pin 5, and then the lower seat 12 and the upper plate 13 are rotated relative to the circumference to a suitable position, and then the position is locked by the fixing pin 6, the structure is simple, and the operation is convenient.

[0036] A second through hole 26 cooperating with the protection block 3 is arranged on the first positioning column 21 along its axial direction, and a second flange 31 is arranged on the top of the protection block 3. The diameter of the second flange 31 is larger than the diameter of the second through hole 26. An arcuate groove body 121 with a T-shaped cross section and a first hole body 122 connected with the arcuate groove body 121 in the vertical direction are arranged on the end face of the lower seat 12 close to the upper plate 13. Usually, multiple arcuate groove bodies 121 form an annular groove body. A second connecting part 32 cooperating with the arcuate groove body 121 is arranged at the bottom of the protection block 3, that is, the cross section of the second connecting part 32 is roughly T-shaped, and the second connecting part 32 of the protection block 3 can pass through the second through hole 26 and the first hole body 122 in sequence. Before positioning and installing the product, the protection block 3 is removed first. When the product is positioned on the driven block 2, the second through hole 26 corresponds to the first hole 122. Then the second connecting portion 32 of the protection block 3 passes through the second through hole 26 and the first hole 122 in sequence. The second flange 31 of the protection block 3 is pressed against the top of the first positioning column 21. Then the upper plate 13 is rotated to a suitable position relative to the lower seat 12, and the position of the lower seat 12 and the upper plate 13 are locked with the fixing pin 6. At the same time, the second connecting portion 32 of the protection block 3 slides along the arc groove 121, so that the second connecting portion 32 is stuck in the arc groove 121, so that the protection block 3 and the driven block 2 are axially fixed relative to the base 1. The operation is convenient, and the loading and unloading of products is convenient, which is very suitable for the automated production line of the product.

[0037] The diameter of the second flange 31 is greater than the outer diameter of the first positioning column 21 . The second flange 31 of the protection block 3 presses against the top of the first positioning column 21 and also presses against the corresponding end face of the product, so that the product is more stably positioned on the driven block 2 .

[0038] A fourth slot body 123 connected to the outside is provided on the end surface of the lower seat 12 close to the upper plate 13. The number and arrangement of the fourth slot bodies 123 depend on the specific situation. Usually, multiple fourth slot bodies 123 radiate outward from the center of the lower seat 12. When there is water or other liquid on the end surface of the lower seat 12 close to the upper plate 13, the water or other liquid can be discharged through the fourth slot bodies 123, thereby facilitating better relative rotation of the upper plate 13 and the lower seat 12.

[0039] The base 1 is provided with a first bearing 4 matched with the driven block 2. The driven block 2 has a first connecting portion 22 matched with the first bearing 4. The first bearing 4 facilitates the driven block 2 to rotate more stably and better ensures the polishing accuracy. The upper plate 13 of the base 1 is also provided with a first groove 101 for accommodating the first bearing 4. The first groove 101 is usually located at the bottom of the upper plate 13. The first bearing 4 is fixed in the first groove 101 by screws and other connecting parts. The upper plate 13 can also be provided with a second avoidance groove 131 matched with screws and other connecting parts. In this way, the structure is more compact, stable and smaller in size.

[0040] A fool-proof groove 132 is provided on one side of the upper plate 13, and a fifth groove body 124 corresponding to the fool-proof groove 132 is provided on the lower seat 12, which is easy to operate and facilitates the installation of the upper plate 13 and the lower seat 12. An indicator arrow 133 can also be provided on the upper plate 13 to facilitate better relative rotation of the upper plate 13 and the lower seat 12.

[0041] A support block 11 is provided at the bottom of the base 1, and the support block 11 is located on the lower seat 12. The number and arrangement of the support blocks 11 are determined according to specific conditions, and the jig is conveniently installed on the corresponding polishing equipment through the support blocks 11. The support block 11 can also be provided with a third groove 111, and a connecting piece such as a screw is placed in the third groove 111, so that the jig is more stable on the corresponding polishing equipment.

[0042] A first flange 23 is formed between the first connecting portion 22 and the first positioning column 21 . The first flange 23 can be pressed against the end surface of the upper plate 13 , making the structure more stable and reliable.

[0043] A second groove body 232 is provided on the end face of the first flange 23 close to the first positioning column 21. The number and arrangement of the second groove bodies 232 are determined according to specific circumstances. When the corresponding polishing device polishes the product positioned on the driven block 2, the polishing device will generate a tangential force on the product, so that the product, the driven block 2 and the protective block 3 rotate together relative to the base 1. The second groove body 232 can provide a certain friction resistance to the polishing device, such as a polishing wheel made of soft materials such as wool or cloth, thereby preventing the product, the driven block 2 and the protective block 3 from rotating too fast together.

[0044] A first positioning platform 102 is provided on the base 1. The first positioning platform 102 is located on the upper plate 13. The first positioning platform 102 corresponds to the driven block 2 one by one. A first through hole 103 for the first connecting portion 22 to pass through is provided on the first positioning platform 102. A first annular groove 231 matching with the first positioning platform 102 is provided on the end surface of the first flange 23 close to the first connecting portion 22. The first connecting portion 22 of the driven block 2 passes through the first through hole 103 on the first positioning platform 102. The first positioning platform 102 is inserted into the first annular groove 231, and the structure is more compact and stable.

[0045] The driven block 2 is also provided with a first limiting portion 24 matched with the first bearing 4. The diameter of the first limiting portion 24 is larger than the diameter of the first connecting portion 22. After the first connecting portion 22 is inserted into the inner hole of the first bearing 4, the first limiting portion 24 can be pressed against the inner ring of the first bearing 4, which is more convenient to operate and has a more stable and reliable structure. A first avoidance groove 25 is also provided at one end of the first connecting portion 22 close to the first limiting portion 24, so as to ensure that the first limiting portion 24 is pressed against the inner ring of the first bearing 4 more stably.

[0046] During use, the jig is installed on the corresponding polishing equipment. Usually, a plurality of rotating bases are arranged on the turntable of the polishing equipment. The jig is installed on the rotating base. The turntable can drive the rotating base to correspond to different polishing stations such as loading and unloading stations and rough polishing, fine polishing, etc. The inner hole of the product to be processed is inserted into the first positioning column 21 of the driven block 2, and then the product is limited and protected by the protective block 3. Then, the polishing device on the polishing equipment polishes the product positioned on the protective block 3. For example, the polishing wheel controlled by a digital servo polishes the product according to pre-set parameters and rotation direction. The polishing device will generate a tangential force on the product positioned on the driven block 2, so that the product, the driven block 2 and the protective block 3 rotate together relative to the base 1, so that the product can be accurately and comprehensively polished. Compared with the prior art, the advantages of the present invention are: simple structure, easy operation, low labor intensity, effective saving of manpower and time, the product is positioned on the driven block 2 through the inner hole, avoiding contact with the appearance of the product and reducing the loss of the fixture, and the detachable protective block 3 is also convenient for limited protection of the product, and is not easy to cause dents, scratches, or even deformation of the product. The surface polishing of the product is uniform, the removal amount is stable, the polishing accuracy is high, and the effect is good. It is especially suitable for smaller products with strict requirements on the appearance surface, thereby improving the yield and production efficiency of the product, and is very suitable for the automated production line of the product, reducing the production cost and enhancing the competitiveness of the product.

[0047] The above are only some embodiments of the present disclosure, which are only used to illustrate the technical solution of the present disclosure, rather than to limit it. It should be understood that, for those skilled in the art, without departing from the creative concept of the present disclosure, it is possible to make improvements or substitutions according to the above description, and all these improvements and substitutions should fall within the scope of protection of the claims attached to the present disclosure. In this case, all details can be replaced by equivalent elements, and the materials, shapes and sizes can also be arbitrary.

Claims

1. Internal positioning driven polishing fixture, characterized in that: The invention comprises a base (1), wherein a driven block (2) is arranged on the base (1), wherein the driven block (2) is capable of rotating in a circle relative to the base (1), wherein a first positioning column (21) for positioning an inner hole of a product is arranged on the driven block (2), wherein a protective block (3) for matching with the product is arranged on the first positioning column (21), and wherein the first positioning column (21) and the protective block (3) are detachably connected; The base (1) is provided with a first bearing (4) that matches the driven block (2); the driven block (2) has a first connecting portion (22) that matches the first bearing (4); The base (1) is provided with a first groove (101) for accommodating the first bearing (4); A first flange (23) is formed between the first connecting portion (22) and the first positioning column (21); A second groove body (232) is provided on the end surface of the first flange (23) close to the first positioning column (21); A supporting block (11) is provided at the bottom of the base (1).

2. The internal positioning driven polishing fixture according to claim 1, characterized in that: The base (1) is provided with a first positioning platform (102), the first positioning platform (102) is provided with a first through hole (103) for the first connecting portion (22) to pass through, and the first flange (23) is provided with a first annular groove (231) matching with the first positioning platform (102) on an end surface close to the first connecting portion (22).

3. The internal positioning driven polishing fixture according to claim 1 or 2, characterized in that: The base (1) comprises a lower seat (12) and an upper plate (13); the lower seat (12) and the upper plate (13) are connected via a positioning pin (5) and a fixing pin (6); and the first positioning column (21) is located above the upper plate (13).

4. The inner positioning driven polishing fixture according to claim 3 is characterized in that: A second through hole (26) matching with the protective block (3) is arranged on the first positioning column (21) along its axial direction; a second flange (31) is arranged on the top of the protective block (3); the diameter of the second flange (31) is larger than the diameter of the second through hole (26); an arcuate groove body (121) with a T-shaped cross section and a first hole body (122) connected to the arcuate groove body (121) in a vertical direction are arranged on the end surface of the lower seat (12) close to the upper plate (13); a second connecting portion (32) matching with the arcuate groove body (121) is arranged at the bottom of the protective block (3); the second connecting portion (32) can pass through the second through hole (26) and the first hole body (122) in sequence.

5. The inner positioning driven polishing fixture according to claim 3, characterized in that: A fourth slot body (123) communicating with the outside is provided on the end surface of the lower seat (12) close to the upper plate (13).

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