Pre-pressing fixing jig for metal frame

Abstract

The utility model provides a metal frame prepressing fixing jig which comprises a base, a support is installed at the bottom of the base, and a bottom fixing piece, a top fixing piece and a side edge fixing piece are arranged on the surface of the base. The metal frame can be fixed to the surface of the base through the side edge fixing pieces, the top fixing piece and the bottom fixing piece, one end of each clamping jaw is of an arc-shaped structure, one side of the metal frame is limited through the two sets of clamping jaws, and the top of the metal frame is attracted and fixed through the magnet piece; the bottom of the metal frame is fixed from the middle position of the bottom through the elastic force of the first spring, so that the stress of each surface of the metal frame is balanced, the metal frame can be prevented from being damaged, and the metal frame is fixed on the surface of the base and then put into pre-pressing equipment to be pre-pressed; and the staying time of the hands of workers below the pre-pressing equipment can be shortened, so that the risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal frame processing, in particular to a pre-pressing fixing fixture for a metal frame. Background Art

[0002] During the assembly of a mobile phone, if the frame of the mobile phone is made of metal, the metal frame of the mobile phone needs to be pre-pressed;

[0003] The prior art provides a pre-pressing device for a mobile phone metal frame (publication number: CN205705395U), which includes: a base, a jig and four pressers. A circuit board is provided inside the base, and a plurality of buttons are provided outside the base. The buttons are connected to the circuit board. The jig and the four pressers are located on the upper surface of the base. The jig is in a rectangular shape. The jig includes a receiving portion and four edges. The four pressers are directly opposite to the four edges of the jig. The device can improve the product yield and product consistency, and has a high equipment transfer rate and low manual operation intensity.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] 1. When operating through the press, the worker's hands will be exposed under the press, which may cause the worker to be injured;

[0006] 2. The pre-pressing fixture in the prior art easily causes uneven force on the frame when fixing it, thereby causing damage to the metal frame and reducing the yield rate. Utility Model Content

[0007] The purpose of the utility model is to provide a pre-pressing fixing fixture for a metal frame to solve the problems raised in the above-mentioned background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A pre-pressing fixing fixture for a metal frame comprises a base, a support is installed at the bottom of the base, and a bottom fixing piece, a top fixing piece and a side fixing piece are arranged on the surface of the base;

[0010] The side fixing part includes a claw, a connecting column, a knob, a threaded rod, a fixing seat, a driving seat, a protrusion, a rotating part and a limit plate, the connecting column is fixedly installed on the surface of the base, the surface of the connecting column is rotatably connected with the claw, one end of the claw is set to an arc structure, a fixing seat is welded on the surface of the base, a threaded rod passes through and is threadedly connected to the inside of the fixing seat, a knob is installed on one end of the threaded rod, the other end of the threaded rod is rotatably connected to the surface of the driving seat, the two ends of the driving seat are rotatably connected with the rotating part, the surface of the claw is integrally formed with a protrusion, the protrusion is in contact with the rotating part, the surface of the driving seat is welded with a limit plate, and an elastic component is arranged between the claw and the connecting column.

[0011] Preferably, the elastic component includes a second spring, a groove, a paddle and a cavity, the interior of the claw is provided with a cavity, the inner wall of the cavity is provided with a groove, a paddle is welded on the surface of the connecting column, the paddle is slidably connected to the interior of the groove, and a second spring is installed between the cavity and the paddle.

[0012] Preferably, the top fixing member includes a receiving groove, a connecting seat and a magnet sheet, the connecting seat is welded on the surface of the base, the receiving groove is opened on the surface of the connecting seat, and the magnet sheet is embedded in the inner wall of the receiving groove.

[0013] Preferably, the bottom fixing member includes a fixing plate, a clamping plate, a movable rod and a first spring. A fixing seat is installed on the surface of the base. A movable rod passes through the interior of the fixing seat and is movably connected thereto. One end of the movable rod is connected to the surface of the clamping plate. A first spring is installed between the clamping plate and the fixing plate.

[0014] Preferably, a clamping ring is fixedly mounted on the inner wall of the cavity, the clamping ring is concentrically arranged with the connecting column, and the paddle is slidably connected to the surface of the clamping ring.

[0015] Preferably, the first spring is sleeved on the surface of the movable rod, two groups of telescopic rods are installed between the fixed plate and the clamping plate, and the two groups of telescopic rods are symmetrically arranged with respect to the first spring.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model can fix the metal frame on the surface of the base by setting the side fixing parts, the top fixing parts and the bottom fixing parts, one end of the claw is set as an arc structure, one side of the metal frame is limited by two groups of claws, and the top of the metal frame is adsorbed and fixed by a magnet sheet, and the bottom of the metal frame is fixed from the middle position of the bottom by the elastic force of the first spring, thereby balancing the forces on various surfaces of the metal frame and preventing the metal frame from being damaged. Moreover, the metal frame is placed in the pre-pressing device for pre-pressing after being fixed on the surface of the base, which can reduce the stay time of the staff's hands under the pre-pressing device, thereby reducing the risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the clamping claw of the utility model;

[0020] Figure 3 It is a schematic diagram of the main structure of the drive seat of the utility model.

[0021] In the figure: 1. support; 2. base; 3. fixing plate; 4. telescopic rod; 5. claw; 6. fixing seat; 7. knob; 8. threaded rod; 9. driving seat; 10. receiving groove; 11. connecting seat; 12. magnet sheet; 13. raised part; 14. rotating part; 15. limit plate; 16. connecting column; 17. clamping plate; 18. first spring; 19. movable rod; 20. second spring; 21. snap ring; 22. groove; 23. pick; 24. cavity. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 , the utility model provides a technical solution:

[0024] A pre-pressing and fixing fixture for a metal frame, comprising a base 2;

[0025] The bottom of the base 2 is provided with a support 1, and the surface of the base 2 is provided with a bottom fixing member, a top fixing member and a side fixing member;

[0026] The side fixing member includes a claw 5, a connecting column 16, a knob 7, a threaded rod 8, a fixing seat 6, a driving seat 9, a protrusion 13, a rotating portion 14 and a limiting plate 15. The connecting column 16 is fixedly installed on the surface of the base 2, and the surface of the connecting column 16 is rotatably connected with the claw 5. One end of the claw 5 is set as an arc structure, and the fixing seat 6 is welded on the surface of the base 2. The inside of the fixing seat 6 is penetrated and threadedly connected with the threaded rod 8. The knob 7 is installed on one end of the threaded rod 8. The other end of the threaded rod 8 is rotatably connected to the surface of the driving seat 9. The two ends of the driving seat 9 are rotatably connected with the rotating portion 14. The surface of the claw 5 is integrally formed with a protrusion 13, and the protrusion 13 is in contact with the rotating portion 14. The surface of the driving seat 9 is welded with a limiting plate 15, and an elastic component is arranged between the claw 5 and the connecting column 16;

[0027] The elastic component includes a second spring 20, a groove 22, a paddle 23 and a cavity 24. The interior of the claw 5 is provided with a cavity 24. The inner wall of the cavity 24 is provided with a groove 22. The surface of the connecting column 16 is welded with a paddle 23. The paddle 23 is slidably connected to the interior of the groove 22. The second spring 20 is installed between the cavity 24 and the paddle 23. A clamping ring 21 is fixedly installed on the inner wall of the cavity 24. The clamping ring 21 is concentrically arranged with the connecting column 16. The paddle 23 is slidably connected to the surface of the clamping ring 21. The automatic opening of the claw 5 can be realized by the setting of the elastic component to facilitate the insertion of the metal frame. After turning the knob 7, the claw 5 can be driven to rotate through the side fixing piece, thereby clamping and fixing the metal frame.

[0028] The top fixing member includes a receiving groove 10, a connecting seat 11 and a magnet sheet 12. The connecting seat 11 is welded on the surface of the base 2, and the receiving groove 10 is opened on the surface of the connecting seat 11. The inner wall of the receiving groove 10 is embedded with a magnet sheet 12. The top fixing member can be fixed from the top of the metal frame by magnetic adsorption.

[0029] The bottom fixing member includes a fixing plate 3, a clamping plate 17, a movable rod 19 and a first spring 18. A fixing seat 6 is installed on the surface of the base 2. The movable rod 19 is penetrated and movably connected inside the fixing seat 6. One end of the movable rod 19 is connected to the surface of the clamping plate 17. A first spring 18 is installed between the clamping plate 17 and the fixing plate 3. The first spring 18 is sleeved on the surface of the movable rod 19. Two groups of telescopic rods 4 are installed between the fixing plate 3 and the clamping plate 17. The two groups of telescopic rods 4 are symmetrically arranged about the first spring 18. The bottom fixing member can be arranged to fix the metal frame from the middle part of the bottom in an elastic clamping manner;

[0030] When the second spring 20 is driven, the claw 5 is driven to rotate as a whole through the paddle 23, and then the movable rod 19 is pulled to compress the first spring 18 through the clamping plate 17 and the fixing plate 3, and then one side of the metal frame is placed in the receiving groove 10 and adsorbed on the surface of the magnet sheet 12, and then the movable rod 19 is released, and the metal frame is fixed by the elastic force of the first spring 18, and finally the knob 7 is turned counterclockwise to make the threaded rod 8 drive the traction seat to move in the direction away from the fixing seat 6, and then the rotating part 14 is driven to move synchronously through the traction seat, and at this time the rotating part 14 can drive the protruding part 13 to move under the limit of the limiting plate 15, and the protruding part 13 can drive the claw 5 to fix and clamp the metal frame in a rotating manner.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pre-pressing fixture for a metal frame, comprising a base (2), characterized in that: A support (1) is installed at the bottom of the base (2), and a bottom fixing piece, a top fixing piece and a side fixing piece are arranged on the surface of the base (2); The side fixing member comprises a claw (5), a connecting column (16), a knob (7), a threaded rod (8), a fixing seat (6), a driving seat (9), a protruding portion (13), a rotating portion (14) and a limiting plate (15); the connecting column (16) is fixedly mounted on the surface of the base (2); the surface of the connecting column (16) is rotatably connected with the claw (5); one end of the claw (5) is arranged in an arc-shaped structure; the surface of the base (2) is welded with a fixing seat (6); the interior of the fixing seat (6) is penetrated and screwed A threaded rod (8) is connected to the groove, one end of the threaded rod (8) is installed with a knob (7), the other end of the threaded rod (8) is rotatably connected to the surface of the driving seat (9), the two ends of the driving seat (9) are rotatably connected with a rotating part (14), the surface of the claw (5) is integrally formed with a protrusion (13), the protrusion (13) is in contact with the rotating part (14), the surface of the driving seat (9) is welded with a limiting plate (15), and an elastic component is arranged between the claw (5) and the connecting column (16).

2. The pre-pressing and fixing fixture for a metal frame according to claim 1, characterized in that: The elastic component comprises a second spring (20), a groove (22), a paddle (23) and a cavity (24); the claw (5) is provided with a cavity (24); the inner wall of the cavity (24) is provided with a groove (22); a paddle (23) is welded on the surface of the connecting column (16); the paddle (23) is slidably connected to the inside of the groove (22); and a second spring (20) is installed between the cavity (24) and the paddle (23).

3. The pre-pressing and fixing fixture for a metal frame according to claim 1, characterized in that: The top fixing member comprises a receiving groove (10), a connecting seat (11) and a magnet sheet (12); the connecting seat (11) is welded to the surface of the base (2); the receiving groove (10) is opened on the surface of the connecting seat (11); and the magnet sheet (12) is embedded in the inner wall of the receiving groove (10).

4. The pre-pressing and fixing fixture for a metal frame according to claim 1, characterized in that: The bottom fixing member comprises a fixing plate (3), a clamping plate (17), a movable rod (19) and a first spring (18); a fixing seat (6) is installed on the surface of the base (2); a movable rod (19) penetrates through the interior of the fixing seat (6) and is movably connected thereto; one end of the movable rod (19) is connected to the surface of the clamping plate (17); and a first spring (18) is installed between the clamping plate (17) and the fixing plate (3).

5. The pre-pressing and fixing fixture for a metal frame according to claim 2, characterized in that: A snap ring (21) is fixedly mounted on the inner wall of the cavity (24); the snap ring (21) is concentrically arranged with the connecting column (16); and the paddle (23) is slidably connected to the surface of the snap ring (21).

6. The pre-pressing and fixing fixture for a metal frame according to claim 4, characterized in that: The first spring (18) is sleeved on the surface of the movable rod (19), and two groups of telescopic rods (4) are installed between the fixed plate (3) and the clamping plate (17), and the two groups of telescopic rods (4) are symmetrically arranged with respect to the first spring (18).

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