Mobile phone frame multi-connecting-rod reinforcement pressing jig

By designing a multi-link force-increasing clamping fixture, and utilizing the lever principle and force-multiplying cylinder drive, the problem of unstable clamping force on titanium alloy mobile phone frames was solved, thus improving processing efficiency.

CN223961158UActive Publication Date: 2026-03-03JIANGSU GOLDEN KERSEN ELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202423026983.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2026-03-03
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

Existing fixtures have unstable clamping force when processing titanium alloy mobile phone frames, resulting in low processing efficiency and failing to meet production needs.

Method used

A multi-link force-increasing clamping fixture is adopted, which uses the lever principle and force-multiplying cylinder as power drive to achieve stable clamping and fixing of mobile phone frame workpiece through the cooperation of multiple links.

Benefits of technology

This method achieves stable clamping and fixing of titanium alloy mobile phone frames, improves processing efficiency, and meets processing requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of machining, and discloses a mobile phone frame multi-connecting-rod boosting pressing jig which comprises a bottom plate, branch pipes are installed at the positions, close to the four corners, of the bottom plate, a supporting plate is installed at the other ends of the branch pipes, and a boosting air cylinder is fixedly installed on the side edge of the face, close to the branch pipes, of the bottom plate. A first connecting rod mechanism is hinged to the output end of the force multiplying air cylinder. By the adoption of the design of traction of the multiple connecting rods, the pressing effect on the mobile phone frame workpiece is greatly enhanced, traction of the mobile phone frame workpiece is achieved by taking traction of the lever principle and a force multiplying air cylinder as a power drive guarantee, then the multiple connecting rods are matched, pressing is further achieved, and the effect that the mobile phone frame workpiece is conveniently clamped and fixed is achieved; even if a titanium alloy mobile phone frame workpiece with large cutting resistance is fixed, continuous and stable pressing and fixing can be kept, the stability of a product is kept, the machining efficiency is improved, and the machining requirement of the titanium alloy mobile phone frame is met.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, and in particular to a multi-link force-increasing clamping fixture for mobile phone frames. Background Technology

[0002] The phone frame is the edge part around the phone's casing, usually made of metal or plastic. Currently, high-end phones generally use metal, especially titanium phone cases. A jig is a tool widely used in industrial production, mainly used to assist in controlling position or movement to facilitate precise machining, assembly, or testing. The jig for machining the phone frame needs to meet the requirements of fixing, working, and guiding the phone frame workpiece.

[0003] To effectively address the processing needs of titanium alloy mobile phone frames in the 3C industry, given the high cutting resistance of titanium alloy materials, current jig processing solutions suffer from unstable product clamping force during the processing of titanium alloys, resulting in low processing efficiency and hindering production needs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-link force-increasing clamping fixture for mobile phone frames, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-link force-increasing clamping fixture for mobile phone frames includes a base plate. Support pipes are installed near the four corners of the base plate, and a support plate is installed at the other end of each support pipe. A force-multiplying cylinder is fixedly installed on the side of the base plate near the support pipes. A first linkage mechanism is hinged to the output end of the force-multiplying cylinder, and the output end of the force-multiplying cylinder can slide short-distance with the first linkage mechanism. A fixture base plate is fixedly installed in the middle of the support plate away from the support pipes. A product middle pressure seat and a product end pressure seat are installed on the surface of the fixture base plate. The product end pressure seat has a groove in the middle, and a fixing module is installed inside the groove. The product end pressure seat and the product middle pressure seat are respectively fixedly installed with a first connecting arm and a second connecting arm through the fixing module. The support plate has a first rod groove and a second rod groove through it to accommodate the first connecting arm and the second connecting arm. The end of the first connecting arm is slidably connected to and rotatably connected to the first linkage mechanism. The end of the second connecting arm is slidably sleeved with the second linkage mechanism. The other end of the second linkage mechanism is hinged to and slidably connected to the output part of the multiplier cylinder.

[0007] Preferably, the base plate has a through-hole assembly slot, the multiplier cylinder includes a multiplier cylinder body and a multiplier cylinder piston rod, the piston rod being located inside the multiplier cylinder body; a cylinder body bracket is fixedly installed at the end of the multiplier cylinder body, and the end of the multiplier cylinder body is fixedly installed to the base plate through the cylinder body bracket; a first hoop mechanism and a second hoop mechanism are fixedly installed on the bottom surface of the support plate, the first linkage mechanism is rotatably installed in the first hoop mechanism, and the second linkage mechanism is rotatably installed in the second hoop mechanism; a limit module is fixedly installed on one side of the top surface of the support plate, and thrust cylinders are fixedly installed on the other two symmetrical sides of the top surface of the support plate; a push block module is installed at the output end.

[0008] Preferably, the first linkage mechanism includes a first lever arm and a rod end slot, the rod end slot being formed through the end of the first lever arm; a hinge frame is fixedly installed at the end of the piston rod of the multiplier cylinder, the end of the hinge frame being slidably overlapped inside the rod end slot.

[0009] Preferably, the first connecting arm includes a first arm shaft and a first movable shaft. The first movable shaft is rotatably mounted on the end of the first arm shaft, and the first movable shaft is rotatably connected to the end of the first linkage mechanism and can be slidably connected over a short distance.

[0010] Preferably, the second connecting arm includes a second arm shaft and a second movable shaft. The second movable shaft is rotatably mounted on the end of the second arm shaft, and the second movable shaft is rotatably connected to the end of the second linkage mechanism and can be slidably connected over a short distance.

[0011] Preferably, the first hoop mechanism includes a first hoop sleeve and a first hoop shaft, the first hoop shaft is fixedly installed in the middle of the first hoop sleeve, and the first hoop shaft is rotatably inserted into the first linkage mechanism; the second hoop mechanism includes a second hoop sleeve and a second hoop shaft, the second hoop shaft is fixedly installed in the middle of the second hoop sleeve, and the second hoop shaft is rotatably inserted into the second linkage mechanism.

[0012] Preferably, the hinge frame includes a horizontal seat block, a vertical seat block, and a hinge shaft. The horizontal seat block is fixedly connected to the piston rod of the multiplier cylinder and the vertical seat block, respectively. The hinge shaft is fixedly connected to the vertical seat block, and the hinge shaft can be rotatably connected and slidably connected within the rod end groove.

[0013] Preferably, the assembly slot group includes a strip-shaped assembly through slot, a branch pipe assembly slot, and an assembly screw hole, all of which are opened through the surface of the base plate; the cylinder support includes a support plate, support corner holes, and support bolts, the cylinder body of the multiplier cylinder is fixedly installed on the surface of the support plate, and the support plate is fixedly connected to the base plate by the support bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This multi-link force-enhancing clamping fixture for mobile phone frames significantly enhances the clamping effect on the mobile phone frame workpiece by employing a multi-link traction design. It utilizes lever principle traction and a multiplier cylinder as the power drive to pull the mobile phone frame workpiece, thereby coordinating multiple links for clamping. This achieves a convenient clamping and fixing effect on the mobile phone frame workpiece. Even when fixing titanium alloy mobile phone frame workpieces with high cutting resistance, it maintains continuous and stable clamping and fixing, ensuring product stability, improving processing efficiency, and effectively meeting the processing requirements of titanium alloy mobile phone frames. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0017] Figure 2 This is another perspective view of the structure of this utility model;

[0018] Figure 3 This is a partial three-dimensional view of the structure of this utility model;

[0019] Figure 4 This is another partial three-dimensional view of the present invention;

[0020] Figure 5 This is another partial three-dimensional view of the present invention;

[0021] Figure 6 This is a three-dimensional view of another partial structure of the present invention.

[0022] In the diagram: 1. Base plate; 2. Assembly slot assembly; 3. Cylinder support; 4. Power cylinder; 5. Hinge frame; 6. First linkage mechanism; 7. Branch pipe; 8. Support plate; 9. Fixture base plate; 10. Product intermediate pressure seat; 11. Product end pressure seat; 12. Groove; 13. Fixing module; 14. First rod groove; 15. Second rod groove; 16. First connecting arm; 17. Second connecting arm; 18. First clamping mechanism; 19. Second clamping mechanism; 20. Second linkage mechanism; 21. Limiting module; 22. Thrust cylinder; 23. Push block module;

[0023] 201. Strip-shaped assembly slot; 202. Branch pipe assembly slot; 203. Assembly screw hole; 301. Support plate; 302. Support corner hole; 303. Support bolt; 401. Multiplier cylinder body; 402. Multiplier cylinder piston rod; 501. Horizontal seat block; 502. Longitudinal seat block; 503. Hinge shaft; 601. First rod arm; 602. Rod end strip-shaped slot; 1601. First arm shaft; 1602. First movable shaft; 1701. Second arm shaft; 1702. Second movable shaft; 1801. First clamp sleeve; 1802. First clamp shaft; 1901. Second clamp sleeve; 1902. Second clamp shaft; Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example:

[0026] Reference Figure 1-6 A multi-link force-increasing clamping fixture for mobile phone frames includes a base plate 1. Support pipes 7 are installed near the four corners of the base plate 1, and support plates 8 are installed at the other ends of the support pipes 7. A multiplier cylinder 4 is fixedly installed on the side of the base plate 1 near the support pipes 7. A first linkage mechanism 6 is hinged to the output end of the multiplier cylinder 4, and the output end of the multiplier cylinder 4 can slide short-distance with the first linkage mechanism 6. A fixture base plate 9 is fixedly installed in the middle of the side of the support plate 8 away from the support pipes 7. A product middle pressure seat 10 and a product end pressure seat 11 are installed on the surface of the fixture base plate 9. The middle of both the product middle pressure seat 10 and the product end pressure seat 11... A groove 12 is provided, and a fixing module 13 is installed inside the groove 12. The product end pressure seat 11 and the product middle pressure seat 10 are respectively fixedly installed with the first connecting arm 16 and the second connecting arm 17 through the fixing module 13. The support plate 8 has a first rod groove 14 and a second rod groove 15 through it to accommodate the first connecting arm 16 and the second connecting arm 17. The end of the first connecting arm 16 is slidably connected to the first linkage mechanism 6 and rotatably connected. The end of the second connecting arm 17 is slidably sleeved with the second linkage mechanism 20, and the other end of the second linkage mechanism 20 is hinged to and slidably connected to the output part of the multiplier cylinder 4.

[0027] In this utility model, the base plate 1 has a through-hole for the assembly slot 2. The multiplier cylinder 4 includes a multiplier cylinder body 401 and a multiplier cylinder piston rod 402, with the piston rod 402 located inside the multiplier cylinder body 401. A cylinder body bracket 3 is fixedly installed at the end of the multiplier cylinder body 401, and the end of the multiplier cylinder body 401 is fixedly installed to the base plate 1 through the cylinder body bracket 3. A first hoop mechanism 18 and a second hoop mechanism 19 are fixedly installed on the bottom surface of the support plate 8. A first connecting rod mechanism 6 is rotatably installed in the first hoop mechanism 18, and a second connecting rod mechanism 20 is rotatably installed in the second hoop mechanism 19. A limit module 21 is fixedly installed on one side of the top surface of the support plate 8, and a thrust cylinder 22 is fixedly installed on the other two symmetrical sides of the top surface of the support plate 8, with a push block module 23 installed at the output end.

[0028] More specifically, a first clamping mechanism 18 and a second clamping mechanism 19 are provided to provide axial support for the first linkage mechanism 6 and the second linkage mechanism 20, and a thrust cylinder 22 and a push block module 23 are provided to clamp and constrain the workpiece.

[0029] In this utility model, the first linkage mechanism 6 includes a first lever arm 601 and a rod end strip groove 602, the rod end strip groove 602 being opened through the end of the first lever arm 601; the end of the multiplier cylinder piston rod 402 is fixedly installed with a hinge frame 5, the end of the hinge frame 5 being slidably overlapped inside the rod end strip groove 602.

[0030] More specifically, by setting the end of the hinge frame 5 to slide and overlap inside the rod end strip groove 602, the end of the hinge frame 5 can also be flipped and moved inside the rod end strip groove 602.

[0031] In this utility model, the first connecting arm 16 includes a first arm shaft 1601 and a first movable shaft 1602. The first movable shaft 1602 is rotatably mounted on the end of the first arm shaft 1601, and the first movable shaft 1602 is rotatably connected to the end of the first linkage mechanism 6 and can be slidably connected by a short distance.

[0032] More specifically, the first movable shaft 1602 is rotatably connected to the end of the first linkage mechanism 6 and can be slidably connected by a short distance, so that there is displacement space when the first linkage mechanism 6 rotates slightly, thus avoiding jamming.

[0033] In this utility model, the second connecting arm 17 includes a second arm shaft 1701 and a second movable shaft 1702. The second movable shaft 1702 is rotatably mounted on the end of the second arm shaft 1701, and the second movable shaft 1702 is rotatably connected to the end of the second linkage mechanism 20 and can be slidably connected by a short distance.

[0034] More specifically, by setting the second movable shaft 1702 to be rotatably connected to the end of the second linkage mechanism 20 and to be slidably connected by a short distance, displacement space can exist when the second linkage mechanism 20 rotates slightly, thus avoiding jamming.

[0035] In this utility model, the first hoop mechanism 18 includes a first hoop sleeve 1801 and a first hoop shaft 1802. The first hoop shaft 1802 is fixedly installed in the middle of the first hoop sleeve 1801 and is rotatably inserted into the first linkage mechanism 6. The second hoop mechanism 19 includes a second hoop sleeve 1901 and a second hoop shaft 1902. The second hoop shaft 1902 is fixedly installed in the middle of the second hoop sleeve 1901 and is rotatably inserted into the second linkage mechanism 20.

[0036] More specifically, a second hoop shaft 1902 is rotatably inserted into the second linkage mechanism 20, and a first hoop shaft 1802 is rotatably inserted into the first linkage mechanism 6, so that when the second linkage mechanism 20 and the first linkage mechanism 6 rotate slightly, the second linkage mechanism 20 and the first hoop shaft 1802 are the axes.

[0037] In this utility model, the hinge frame 5 includes a horizontal seat block 501, a vertical seat block 502 and a hinge shaft 503. The horizontal seat block 501 is fixedly connected to the piston rod 402 of the multiplier cylinder and the vertical seat block 502 respectively. The hinge shaft 503 is fixedly connected to the vertical seat block 502, and the hinge shaft 503 can be rotated and slidably connected in the rod end slot 602.

[0038] More specifically, the hinge shaft 503 is configured to be rotatably and slidably connected within the rod end slot 602, so that when the entire structure is pulled, this part of the structure can slide during rotation, thus avoiding jamming.

[0039] In this utility model, the assembly slot group 2 includes a strip-shaped assembly through slot 201, a branch pipe assembly slot 202, and an assembly screw hole 203. The assembly screw hole 203, the strip-shaped assembly through slot 201, and the branch pipe assembly slot 202 are all opened through the surface of the base plate 1. The cylinder support 3 includes a support plate 301, a support corner hole 302, and a support bolt 303. The cylinder body 401 of the multiplier cylinder is fixedly installed on the surface of the support plate 301. The support plate 301 is fixedly connected to the base plate 1 by the support bolt 303.

[0040] More specifically, by integrating the cylinder body 401 onto the support plate 301 and connecting and assembling it through the support plate 301, assembly can be facilitated, avoiding the inconvenience of directly welding the cylinder body 401 during installation.

[0041] Working principle: When pressing and fixing the mobile phone frame workpiece, it is pre-fixed by the product middle pressure seat 10 and the product end pressure seat 11. Then, the force multiplier cylinder 4 is activated, which drives the output piston inside the force multiplier cylinder 4 to push out, thereby driving the first linkage mechanism 6 and the second linkage mechanism 20 to rotate. The first linkage mechanism 6 and the second linkage mechanism 20 respectively pull the first connecting arm 16 and the second connecting arm 17 to move. The structures connected at both ends of the first linkage mechanism 6 and the second linkage mechanism 20 are movable connections that can be displaced by one end, so it can avoid jamming during slight flipping. The pulling of the first connecting arm 16 and the second connecting arm 17 can continue to pull and press the previously fixed mobile phone frame workpiece.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile phone frame multi-link force amplification compression jig comprising a bottom plate (1), characterized in that, The bottom plate (1) is installed with a branch pipe (7) near the four corners, the other end of the branch pipe (7) is installed with a support plate (8), the side edge of the bottom plate (1) near the branch pipe (7) is fixedly installed with a force multiplier cylinder (4), the output end of the force multiplier cylinder (4) is hingedly installed with a first connecting rod mechanism (6), and the output end of the force multiplier cylinder (4) can be short-distance slidingly connected with the first connecting rod mechanism (6), the middle of the side of the support plate (8) away from the branch pipe (7) is fixedly installed with a jig base plate (9), the surface of the jig base plate (9) is installed with a product middle pressing seat (10) and a product end pressing seat (11), the middle of the product middle pressing seat (10) and the product end pressing seat (11) is provided with a groove (12), the inside of the groove (12) is installed with a fixing module (13), the product end pressing seat (11) and the product middle pressing seat (10) are fixedly installed with a first connecting arm (16) and a second connecting arm (17) through the fixing module (13), the surface of the support plate (8) is provided with a first rod slot (14) and a second rod slot (15) for accommodating the first connecting arm (16) and the second connecting arm (17), and the end of the first connecting arm (16) is slidingly and rotatably connected with the first connecting rod mechanism (6), the end of the second connecting arm (17) is slidingly sleeved with a second connecting rod mechanism (20), and the other end of the second connecting rod mechanism (20) is hingedly and slidingly connected with the output end of the force multiplier cylinder (4).

2. The multi-link force amplification compression jig for a mobile phone frame according to claim 1, characterized in that, The surface of the bottom plate (1) is provided with an assembly groove group (2), the force multiplier cylinder (4) comprises a force multiplier cylinder body (401) and a force multiplier cylinder piston rod (402), and the force multiplier cylinder piston rod (402) is arranged in the inside of the force multiplier cylinder body (401); the end of the force multiplier cylinder body (401) is fixedly installed with a cylinder body support (3), and the end of the force multiplier cylinder body (401) is fixedly installed with the bottom plate (1) through the cylinder body support (3); the bottom surface of the support plate (8) is fixedly installed with a first hoop seat mechanism (18) and a second hoop seat mechanism (19), the first connecting rod mechanism (6) is rotatably installed in the first hoop seat mechanism (18), and the second connecting rod mechanism (20) is rotatably installed in the second hoop seat mechanism (19); one side edge of the top surface of the support plate (8) is fixedly installed with a limiting module (21), and the other two opposite side edges of the top surface of the support plate (8) are fixedly installed with a thrust cylinder (22), and the output end is installed with a push block module (23).

3. The multi-link force boosting compression jig for a mobile phone frame according to claim 2, characterized in that, The first connecting rod mechanism (6) comprises a first rod arm (601) and a rod end strip-shaped groove (602), and the rod end strip-shaped groove (602) is provided in the end of the first rod arm (601); the end of the force multiplier cylinder piston rod (402) is fixedly installed with a hinged frame (5), and the end of the hinged frame (5) is slidingly overlapped in the inside of the rod end strip-shaped groove (602).

4. The multi-link force boosting compression jig for a mobile phone frame according to claim 1, characterized in that, The first connecting arm (16) comprises a first arm shaft (1601) and a first movable shaft (1602), the first movable shaft (1602) is rotatably installed at the end of the first arm shaft (1601), and the first movable shaft (1602) is rotatably connected with the end of the first connecting rod mechanism (6) and is short-distance slidably connected.

5. The multi-link force amplification compression jig for a cell phone frame according to claim 1, wherein, The second connecting arm (17) comprises a second arm shaft (1701) and a second movable shaft (1702), the second movable shaft (1702) is rotatably installed at the end of the second arm shaft (1701), and the second movable shaft (1702) is rotatably connected with the end of the second connecting rod mechanism (20) and is short-distance slidably connected.

6. The multi-link force boosting compression jig for a mobile phone frame according to claim 2, characterized in that, The first hoop seat mechanism (18) comprises a first hoop sleeve (1801) and a first hoop shaft (1802), the first hoop shaft (1802) is fixedly installed in the middle of the first hoop sleeve (1801), and the first hoop shaft (1802) is rotatably inserted into the first connecting rod mechanism (6); the second hoop seat mechanism (19) comprises a second hoop sleeve (1901) and a second hoop shaft (1902), the second hoop shaft (1902) is fixedly installed in the middle of the second hoop sleeve (1901), and the second hoop shaft (1902) is rotatably inserted into the second connecting rod mechanism (20).

7. The multi-link force boosting compression jig for a mobile phone frame according to claim 3, characterized in that, The articulated frame (5) comprises a horizontal seat block (501), a vertical seat block (502) and a winding shaft (503), the horizontal seat block (501) is fixedly connected with the force multiplication cylinder piston rod (402) and the vertical seat block (502) respectively, the winding shaft (503) is fixedly connected with the vertical seat block (502), and the winding shaft (503) can be rotatably connected and slidably connected in the rod end strip-shaped groove (602).

8. The multi-link force boosting compression jig for a mobile phone frame according to claim 2, characterized in that, The assembly groove group (2) comprises a strip-shaped assembly through groove (201), a branch pipe assembly groove (202) and an assembly screw hole (203), the assembly screw hole (203), the strip-shaped assembly through groove (201) and the branch pipe assembly groove (202) are all provided through the plate surface of the bottom plate (1); the cylinder body support (3) comprises a support plate (301), a support angle hole (302) and a support bolt (303), the force multiplication cylinder body (401) is fixedly installed on the plate surface of the support plate (301), and the support plate (301) is fixedly connected with the bottom plate (1) through the support bolt (303).