A multi-stage product polishing jig

Abstract

This application discloses a jig for polishing multi-segment products, relating to the field of jigs. It includes two substrates and a locking mechanism. The locking mechanism is used to dock and fix the two substrates. Each of the two substrates is provided with a limiting structure for placing the product. The limiting structure includes a receiving cavity and multiple limiting cavities. The receiving cavity is integrally formed in the middle of the substrate, and the multiple limiting cavities are symmetrically integrally formed on the substrate about the receiving cavity, and the receiving cavity is connected to the limiting cavities. When the two substrates are engaged, the product is clamped and limited by the cooperation of the two limiting structures, facilitating the polishing of spherical objects. This application uses limiting structures to limit the multi-segment product, preventing displacement of the multi-segment product during the polishing of spherical objects, thus improving the quality of polishing multi-segment products.

Description

Technical Field

[0001] This application relates to the field of jigs, and in particular to a jig for multi-stage product polishing. Background Technology

[0002] Reference Figure 1 The MIM product consists of two first single parts 23 and a second single part 24, wherein the two first single parts 23 are fixed to the two ends of the second single part 24 by welding. In addition, during the processing of this product, the spherical part 25 of the first single part 23 needs to be polished to ensure the usability of the first single part 23.

[0003] The existing processing involves first polishing the spherical part 25 of the first single part 23. Multiple first single parts 23 are placed in a fixture with multiple slots, and a person manually holds the fixture to bring the first single parts 23 close to the polishing wheel for grinding. Then, the two polished first single parts 23 are welded onto the second single part 24.

[0004] However, after polishing the spherical part 25 of the first single part 23, the end of the first single part 23 is welded to the second single part 24. The slag generated during welding can scratch the polished spherical part 25 of the first single part 23 again. Furthermore, the existing fixture does not have internal limits to accommodate the shape characteristics of the product, which can easily cause the product to deflect or slip during polishing, thus affecting the polishing quality. Utility Model Content

[0005] To address the issues of first polishing a spherical part and then welding its end to a second part, where welding slag easily scratches the polished spherical part, and the existing fixtures not being positioned according to the product shape, causing the product to easily deflect and slip during polishing, this application provides a multi-stage product polishing fixture.

[0006] The technical solution for a multi-segment product polishing fixture provided in this application is as follows: A multi-stage product polishing fixture includes two substrates and a locking mechanism. The locking mechanism is used to dock and fix the two substrates. Each of the two substrates is provided with a limiting structure for placing the product. The limiting structure includes a receiving cavity and multiple limiting cavities. The receiving cavity is integrally formed in the middle of the substrate, and the multiple limiting cavities are integrally formed symmetrically about the receiving cavity on the substrate. The receiving cavity and the limiting cavities are connected. When the two substrates are fastened together, the product is clamped and limited by the cooperation of the two limiting structures, which facilitates the polishing of spherical objects on the product.

[0007] By adopting the above technical solution, on the one hand, the setting of the limiting structure avoids the reaction force of the grinding wheel on the product, which would cause the product to shift within the fixture and thus affect the grinding quality. On the other hand, by first welding to form a multi-segment product, and then placing the welded product in a special fixture to grind both ends of the multi-segment product, the problem of welding slag scratching the already polished first single part (spherical shape) is solved, and the operational requirements for operators welding multi-segment products are reduced.

[0008] Optionally, the receiving cavity is used to place the second single part, and the receiving cavity is arranged in a rectangular shape.

[0009] By adopting the above technical solution, the accommodating cavity integrally formed on the substrate provides placement space for multiple second single parts.

[0010] Optionally, the limiting cavity is used to place the first single part, and the limiting cavity includes a strip cavity and a fitting cavity integrally formed on the substrate. The fitting cavity is connected to the strip cavity. The strip cavity is used to accommodate the vertically placed product, and the fitting cavity is adapted to the central contour of the first single part to limit the central part of the first single part.

[0011] By adopting the above technical solution, when the multi-segment product is placed vertically on the substrate, the limiting cavity is used to place the first single part. The fitting cavity is adapted to the central contour of the first single part to limit its central part, and combined with the two substrates and the locking mechanism, it can achieve better clamping and limiting of the product, and avoid the polishing effect being affected by the shaking of the part.

[0012] Optionally, the engaging mechanism includes a positioning post and a positioning hole. The positioning post is integrally formed on one of the substrates, and the positioning hole is integrally formed on the other substrate. When the two substrates are engaged, they are fixed by the interference fit between the positioning hole and the positioning post.

[0013] By adopting the above technical solution, the positioning pin and positioning hole of the clamping mechanism are integrally formed on different substrates. The positioning hole and the positioning pin are interference-fitted to make the two substrates snap together and fix them, ensuring that the connection between the two substrates is stable during the use of the fixture, thereby stably clamping the product and preventing multi-segment products from shifting during polishing.

[0014] Optionally, the two substrates are further provided with a reinforcing mechanism to enhance the engagement strength between them. The reinforcing mechanism includes a rotating plate, a pressing block, and an elastic structure. The rotating plate is rotatably mounted on the side wall of one of the substrates. The rotating plate has a through hole. The other substrate has a limiting groove. The elastic structure is mounted on the pressing block and cooperates with the limiting groove to fix the rotating plate on the substrate with the limiting groove.

[0015] By adopting the above technical solution, after the two substrates are joined and pressed together, the rotating plate is rotated. The pressing block is positioned on the through hole and pressed down. Under the action of the elastic structure, the end of the pressing block is locked and fixed inside the limiting groove, thereby strengthening the joint fixation of the two substrates.

[0016] Optionally, the limiting groove includes a first groove and a second groove, the first groove is located above the second groove, and the cross-sectional dimension of the second groove is larger than that of the first groove, and a push rod slides in the second groove.

[0017] By adopting the above technical solution, when the pressing block is pressed, both the through hole and the first groove exert a pressing force on the locking block, thereby retracting the locking block into the receiving groove, at which point the spring is compressed. When the bottom of the pressing block contacts the bottom wall of the second groove, the locking block is no longer subjected to external pressing force. Under the reset action of the spring, the locking block is locked and fixed in the second groove, thereby strengthening the connection effect between the two substrates.

[0018] Optionally, the elastic structure includes a receiving groove, a first spring, and a snap-fit ​​block. The receiving groove is formed on the pressing block, and the sidewall of the snap-fit ​​block is arc-shaped. The two ends of the first spring are fixed to the receiving groove and the snap-fit ​​block, respectively. Under the pressure of external force and the action of the first spring, the pressing block snaps the snap-fit ​​block into the limiting groove.

[0019] By adopting the above technical solution, the pressing block, under the pressure of external force and the action of the first spring, will lock the locking block in the limiting groove, which can strengthen the locking strength of the two base plates, make the fixture more stable in fixing the product, avoid the product from deflecting or slipping during grinding, and improve the grinding quality of the product.

[0020] Optionally, the limiting groove includes a first groove and a second groove, the first groove is located above the second groove, and the cross-sectional dimension of the second groove is larger than that of the first groove. A push rod slides in the second groove, and the push rod can push the snap block into the receiving groove under the action of external force, so as to facilitate the subsequent removal of the pressing block.

[0021] By adopting the above technical solution, when the pressing block is pressed, both the through hole and the first groove exert a resisting effect on the locking block, thereby retracting the locking block into the receiving groove. When the bottom of the pressing block contacts the bottom wall of the second groove, the locking block is no longer subject to external resistance, and under the reset action of the spring, the locking block is locked and fixed in the second groove. The push rod in the second groove can push the locking block into the receiving groove under the action of external force, which facilitates the subsequent removal of the pressing block and the disassembly of the fixture and the handling of the product.

[0022] Optionally, a second spring is coaxially sleeved on the outside of the push rod. One end of the second spring is fixed on the base plate with a limiting groove, and the other end of the second spring is fixed on the end of the push rod located outside the base plate. The second spring enables the push rod to automatically rebound.

[0023] By employing the above technical solution, the push rod is pushed into the receiving groove, causing the locking block to disengage from the second groove. Subsequently, the pressing block is pulled upwards to disengage it from the limiting groove, thus releasing the fixing of the rotating plate and the base plate, easily separating the two base plates and removing the multi-section product. Under the action of the second spring, the push rod automatically rebounds, ensuring that it will not interfere with the pressing block's engagement in the limiting groove when fixing the rotating plate and base plate next time.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. First, weld two first single parts to the ends of a second single part to form a multi-segment product. Then, grind the ends of the multi-segment product. This avoids the slag generated during welding from scratching the polished spherical first single part again, reduces the operational requirements for operators, and improves product quality. 2. When the two substrates are fastened together, the product is clamped and limited by the cooperation of the two limiting structures, so as to avoid the product shifting in the fixture due to the reaction force of the grinding wheel on the product, thereby affecting the grinding quality of the product; 3. The locking mechanism and the reinforcing mechanism can securely fasten the two substrates together, ensuring effective clamping and positioning of the product, and facilitating polishing. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the multi-segment product provided in Embodiment 1 of this application; Figure 2 This is an overall schematic diagram of the fixture provided in Embodiment 1 of this application; Figure 3 This is a schematic diagram of the substrate provided in Embodiment 1 of this application, used to illustrate the limiting structure; Figure 4 This is a schematic diagram of the installation of the reinforcing mechanism and the substrate provided in Embodiment 2 of this application; Figure 5 This is an exploded view of the rotating plate and base provided in Embodiment 2 of this application, used to show the limiting groove and through hole; Figure 6 This is provided in Embodiment 2 of this application. Figure 5 Enlarged view of point A in the middle; Figure 7 This is a cross-sectional view of the rotating plate and base provided in Embodiment 2 of this application, used to illustrate the elastic structure.

[0027] Reference numerals: 1. Base plate; 2. Engaging mechanism; 3. Limiting structure; 4. Receiving cavity; 5. Limiting cavity; 6. Strip cavity; 7. Fitting cavity; 8. Positioning post; 9. Positioning hole; 10. Reinforcing mechanism; 11. Rotating plate; 12. Pressing block; 13. Elastic structure; 14. Through hole; 15. Limiting groove; 16. Receiving groove; 17. First spring; 18. Engaging block; 19. First groove; 20. Second groove; 21. Push rod; 22. Second spring; 23. First single part; 24. Second single part; 25. Spherical object. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0029] This application discloses a jig for multi-segment product polishing.

[0030] Reference Figure 1 The multi-segment product in this application is formed by symmetrically welding two first single parts 23 to the two ends of a second single part 24. Additionally, the spherical parts 25 of the first single parts 23 need to be polished.

[0031] Example 1: Reference Figure 2 A multi-stage product polishing fixture includes two substrates 1 and a locking mechanism 2. The locking mechanism 2 is provided on both substrates 1 to achieve docking and fixing of the two substrates 1. A limiting structure 3 is provided on both substrates 1, which adapts to the shape of the product to clamp and limit its movement. This effectively prevents the product from deflecting or slipping during polishing, improving polishing quality.

[0032] In this application, two first single parts 23 are symmetrically welded to both ends of a second single part 24 to form a multi-segment product. The multi-segment product is then placed in the fixture for polishing. This changes the original process of first polishing the spherical part 25 of the first single part 23 and then welding it onto the second single part 24. This avoids the slag generated during welding scratching the polished spherical part 25 of the first single part 23. In this application, the multi-segment product is placed vertically in the fixture. Vertical placement increases the number of products that can be clamped at once within the same area of ​​the fixture. Furthermore, the limiting structure 3 engages with the vertically placed multi-segment product, limiting its movement and preventing deflection during polishing.

[0033] Reference Figure 2 In this embodiment, two sets of locking mechanisms 2 are provided, symmetrically arranged on the substrate 1. Each locking mechanism 2 includes a positioning post 8 and a positioning hole 9. The positioning post 8 is integrally formed on one substrate 1, and the positioning hole 9 is integrally formed on the other substrate 1. When the two substrates 1 are engaged, the positioning post 8 is inserted into the positioning hole 9, and the two are in an interference fit. The interference fit ensures that the two substrates 1 are tightly connected together, preventing the substrates 1 from loosening during polishing, thereby ensuring stable clamping of the product by the fixture.

[0034] Reference Figure 3 The limiting structure 3 includes a receiving cavity 4 and multiple limiting cavities 5. The receiving cavity 4 is integrally formed in the middle of the substrate 1, and the multiple limiting cavities 5 are integrally formed symmetrically about the receiving cavity 4 on the substrate 1, and the receiving cavity 4 and the limiting cavities 5 are connected. This layout ensures that when the product is placed vertically in the fixture, each part can be reasonably limited, thus ensuring the overall stability of the product.

[0035] Reference Figure 3 The receiving cavity 4 is used to place the second single part 24 and is rectangular in shape. In this application, the receiving cavity 4 is integrally formed on the substrate 1. The limiting cavity 5 is used to place the first single part 23 and includes a strip cavity 6 and a fitting cavity 7 integrally formed on the substrate 1, with the fitting cavity 7 communicating with the strip cavity 6. In this embodiment, there are three strip cavities 6 and two fitting cavities 7, which are staggered and the strip cavities 6 are connected to the receiving groove 16.

[0036] Reference Figure 3 The strip cavity 6 is used to accommodate vertically placed products and can play a basic vertical positioning role for the first single part 23. The fitting cavity 7 is adapted to the central contour of the first single part 23 and is used to limit the central part of the first single part 23 to prevent the multi-segment product from deflecting during the grinding process.

[0037] In Embodiment 1 of this application, the implementation principle of a jig for polishing multi-segment products is as follows: Each individual part of the product is first welded together, and then the entire product is placed into the jig for polishing. This avoids secondary scratches from welding slag on the polished areas, reduces the operational requirements for operators, and improves production efficiency and product quality. Furthermore, the jig, through its limiting structure 3, adapts to the shape of the multi-segment product, providing stable clamping and limiting, preventing deflection or slippage during polishing, and improving polishing quality. The interference fit between the positioning pin 8 and the positioning hole 9 enables rapid docking and fixation of the two substrates 1.

[0038] Example 2: The difference between Example 2 and Example 1 is that: (Refer to...) Figure 4 In addition, two reinforcing mechanisms 10 are provided on the two substrates 1 to enhance the two engagement strengths. In this embodiment, two sets of reinforcing mechanisms 10 are provided, and the two sets of reinforcing mechanisms 10 are symmetrically arranged on the substrates 1.

[0039] Reference Figure 5 and Figure 6 The reinforcing mechanism 10 includes a rotating plate 11, a pressing block 12, and an elastic structure 13. The rotating plate 11 is rotatably mounted on the side wall of one of the substrates 1, allowing it to rotate within a certain range around a pivot axis. A through hole 14 is formed in the rotating plate 11. A limiting groove 15 is formed in the other substrate 1, and the elastic structure 13 is mounted on the pressing block 12 to cooperate with the limiting groove 15, thereby fixing the rotating plate 11 to the substrate 1 with the limiting groove 15.

[0040] Reference Figure 7 The elastic structure 13 includes a receiving groove 16, a first spring 17, and a snap-fit ​​block 18. The receiving groove 16 is formed on the pressing block 12, and the two ends of the first spring 17 are fixed to the receiving groove 16 and the snap-fit ​​block 18, respectively.

[0041] Reference Figure 7 The limiting groove 15 includes a first groove 19 and a second groove 20. The first groove 19 and the second groove 20 are perpendicularly arranged and connected, wherein the first groove 19 cooperates with the pressing block 12, and the second groove 20 cooperates with the locking block 18. In addition, a push rod 21 slides within the limiting groove 15, and a second spring 22 is coaxially sleeved on the outside of the push rod 21. The two ends of the second spring 22 are respectively fixed to the outer wall of the base plate 1 where the limiting groove 15 is formed and the end of the push rod 21 located outside the base plate 1. Pushing the push rod 21, under the elastic action of the second spring 22, enables the push rod 21 to automatically rebound.

[0042] Reference Figures 4 to 7After the two substrates 1 are joined, the rotating plate 11 is rotated so that it wraps around the substrate 1. At this time, the through hole 14 is directly above the limiting groove 15. The snap-fit ​​block 18 is pressed into the receiving groove 16. At this time, the first spring 17 is in a compressed state, storing elastic potential energy. Then, the pressing block 12 is placed in the through hole 14 and pressed down. When the bottom of the pressing block 12 moves to the bottom wall of the first groove 19, the first groove 19 no longer abuts against the snap-fit ​​block 18. The reset action of the first spring 17 pushes the snap-fit ​​block 18 outward, so that the snap-fit ​​block 18 is snapped into the second groove 20, thereby achieving a strengthening and fixing effect on the two substrates 1.

[0043] Reference Figures 4 to 7 When it is necessary to release the fixation of the two substrates 1, push rod 21 is pushed towards pressing block 12. Under the action of push rod 21, snap-fit ​​block 18 is pressed into receiving groove 16, and then pressing block 12 is pulled upward, so that pressing block 12 disengages from limiting groove 15 and through hole 14 in sequence, thereby releasing the reinforcing fixation of the two substrates 1 by reinforcing mechanism 10. Rotating plate 11 in the opposite direction is used to disengage it from substrate 1, and substrate 1 is pulled outward to release the interference fit between positioning rod and positioning hole 9, finally realizing the separation of the two substrates 1 to remove the polished multi-segment product.

[0044] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A jig for multi-segment product polishing, characterized in that: It includes two substrates (1) and a locking mechanism (2). The locking mechanism (2) is used to fix the two substrates (1) together. Each of the two substrates (1) is provided with a limiting structure (3) for placing the product. The limiting structure (3) includes a receiving cavity (4) and multiple limiting cavities (5). The receiving cavity (4) is integrally formed in the middle of the substrate (1). The multiple limiting cavities (5) are integrally formed symmetrically about the receiving cavity (4) on the substrate (1). The receiving cavity (4) and the limiting cavity (5) are connected. When the two substrates (1) are fastened together, the product is clamped and limited by the cooperation of the two limiting structures (3), which facilitates the grinding of the spherical object (25) of the product.

2. The jig for multi-segment product polishing according to claim 1, characterized in that: The receiving cavity (4) is used to place the second single part (24), and the receiving cavity (4) is rectangular in shape.

3. The jig for multi-segment product polishing according to claim 1, characterized in that: The limiting cavity (5) is used to place the first single part (23), and the limiting cavity (5) includes a strip cavity (6) and a fitting cavity (7) integrally formed on the substrate (1). The fitting cavity (7) is connected to the strip cavity (6). The strip cavity (6) is used to accommodate the vertically placed product, and the fitting cavity (7) is adapted to the middle contour of the first single part (23) to limit the first single part (23).

4. The jig for multi-segment product polishing according to claim 1, characterized in that: The engaging mechanism (2) includes a positioning post (8) and a positioning hole (9). The positioning post (8) is integrally formed on one of the substrates (1), and the positioning hole (9) is integrally formed on the other substrate (1). When the two substrates (1) are engaged, they are fixed by the interference fit between the positioning hole (9) and the positioning post (8).

5. The jig for multi-segment product polishing according to claim 1, characterized in that: The two substrates (1) are also provided with a strengthening mechanism (10) to enhance the engagement strength between them. The strengthening mechanism (10) includes a rotating plate (11), a pressing block (12) and an elastic structure (13). The rotating plate (11) is rotatably disposed on the side wall of one of the substrates (1). The rotating plate (11) has a through hole (14). The other substrate (1) has a limiting groove (15). The elastic structure (13) is disposed on the pressing block (12) and cooperates with the limiting groove (15) to fix the rotating plate (11) on the substrate (1) with the limiting groove (15).

6. The jig for multi-segment product polishing according to claim 5, characterized in that: The elastic structure (13) includes a receiving groove (16), a first spring (17) and a snap-fit ​​block (18). The receiving groove (16) is formed on the pressing block (12). The two ends of the first spring (17) are fixed to the receiving groove (16) and the snap-fit ​​block (18) respectively. Under the action of external force and the first spring (17), the pressing block (12) snaps the snap-fit ​​block (18) into the limiting groove (15).

7. The jig for multi-segment product polishing according to claim 6, characterized in that: The limiting groove (15) includes a first groove (19) and a second groove (20). The first groove (19) and the second groove (20) are perpendicularly arranged and connected. The second groove (20) is used to engage the engaging block (18). A push rod (21) slides in the limiting groove (15). Under the action of external force, the push rod (21) can push the engaging block (18) into the receiving groove (16) to facilitate the subsequent removal of the pressing block (12).

8. The jig for multi-segment product polishing according to claim 7, characterized in that: The push rod (21) is coaxially fitted with a second spring (22). One end of the second spring (22) is fixed on the base plate (1) with a limiting groove (15), and the other end of the second spring (22) is fixed on the end of the push rod (21) located outside the base plate (1). The second spring (22) enables the push rod (21) to automatically rebound.

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