Middle frame spot welding jig

Abstract

The utility model relates to the technical field of mobile phone middle frame production, in particular to a middle frame spot welding jig which comprises a spot welding table, an interchanging bottom plate is arranged on the surface of the spot welding table, a jig bottom plate is arranged on the surface of the interchanging bottom plate, and a slope mounting block and a movable pressing claw mechanism are arranged on the top of the jig bottom plate. A connecting plate is mounted on the inclined face of the inclined face mounting block through a bolt, and the surface of the connecting plate is slidably connected with a profiling positioning base matched with the middle frame product in shape. According to the middle frame spot welding jig, a magnetic block, a pressing claw and a positioning elastic needle in the movable pressing claw mechanism are arranged in a matched mode to position and place a copper foil, the copper foil is pressed through magnetic attraction, the welding precision is guaranteed, the pressing position of the pressing claw can be flexibly adjusted, the flexibility is high, the problem of inaccurate alignment can be effectively solved, the positioning elastic needle is elastically arranged, and the positioning effect is good. Therefore, the copper foil is effectively prevented from being clamped by the positioning columns, and the copper foil is prevented from falling off when a product is taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone middle frame production, in particular to a middle frame spot welding fixture. Background Art

[0002] The mobile phone middle frame is a key part of the smartphone structure. It usually refers to the side frame of the phone, which supports and protects the internal components. The design and materials of the mobile phone middle frame have an important impact on the durability, appearance and feel of the entire device. With the continuous advancement of smartphone design, the materials and designs of mobile phone middle frames are also constantly innovating to meet the market demand for thin, beautiful and high-performance mobile phones. During the production of mobile phone middle frames, copper foil components need to be welded.

[0003] At present, welding jigs are needed in the copper foil welding of mobile phones. However, due to the small size of the copper foil components, it is inconvenient to place them, which affects the spot welding efficiency. The fixed pressure claws also have problems such as inaccurate positioning and inability to adjust. After spot welding, the positioning column is easy to get stuck in the copper foil, causing the copper foil to fall off when the product is taken out. Therefore, a new type of middle frame spot welding jig is needed to solve these problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a middle frame spot welding fixture, which solves the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a middle frame spot welding jig, including a spot welding table, an interchangeable base plate is arranged on the surface of the spot welding table, a jig base plate is arranged on the surface of the interchangeable base plate, an inclined mounting block and a movable pressure claw mechanism are arranged on the top of the jig base plate, a connecting plate is installed on the inclined surface of the inclined mounting block through bolts, a contoured positioning base adapted to the shape of the middle frame product is slidably connected on the surface of the connecting plate, a cover plate connecting block is arranged on the top of the contoured positioning base, and one end of the cover plate connecting block is rotatably connected to the contoured cover plate.

[0006] Optionally, the movable pressure claw mechanism includes two movable adjustment blocks, a copper foil positioning block, a magnetic block, a pressure claw and a positioning spring pin. The surfaces of the two movable adjustment blocks are provided with copper foil positioning blocks, the surfaces of the copper foil positioning blocks are provided with magnetic blocks, the top of the copper foil positioning block is rotatably provided with a pressure claw through a rotating shaft, and a positioning spring pin is provided on the copper foil positioning block at a position below the pressure claw.

[0007] Optionally, a placement groove is further provided on the surface of the copper foil positioning block, the positioning spring pin is located in the placement groove, and the clamping jaw operating bolt is provided on the pressing jaw.

[0008] Optionally, the mounting surface of the movable adjustment block is set as an inclined surface, and the inclination angle is matched with the mounting surface angle of the inclined surface mounting block.

[0009] Optionally, a slide rail is provided on the surface of the connecting plate, and a slide block is provided on the back of the contoured positioning base.

[0010] Optionally, a handle block for easy adjustment is also provided on the top of the contoured positioning base.

[0011] Optionally, an operating block for facilitating manual opening and closing is provided on the surface of the contoured cover plate.

[0012] The utility model provides a middle frame spot welding fixture, which has the following beneficial effects:

[0013] 1. The middle frame spot welding fixture can directly replace fixtures of different specifications by exchanging the bottom plate, which is convenient to use and improves work efficiency. The copper foil is positioned and placed by moving the magnetic block, the pressure claw and the positioning spring pin in the pressure claw mechanism, and the copper foil is pressed by magnetic suction to ensure the accuracy during welding. The pressure claw can flexibly adjust the pressing position, which is highly flexible and can effectively solve the problem of inaccurate alignment. The positioning spring pin can effectively avoid the copper foil being stuck by the positioning column and causing the copper foil to fall off when the product is taken out through the elastic setting.

[0014] 2. The middle frame spot welding jig firmly fixes the middle frame of the mobile phone on the jig through the setting of the profiling positioning base and the profiling cover plate, and at the same time exposes its welding points to facilitate welding. The position of the profiling positioning base can be flexibly adjusted through the setting of the slide rail and the slider to improve the flexibility of the jig. The setting of the handle block, the operating block and the clamping claw operating bolt facilitates the operator to operate the jig components and use the jig flexibly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the exploded and partially enlarged structure of the movable pressing claw mechanism of the utility model.

[0018] In the figure: 1. spot welding station; 2. interchangeable base plate; 3. fixture base plate; 4. inclined mounting block; 5. connecting plate; 6. movable pressure claw mechanism; 601. movable adjustment block; 602. copper foil positioning block; 603. magnetic block; 604. pressure claw; 605. positioning spring pin; 606. placement slot; 607. clamping claw operating bolt; 7. contoured positioning base; 8. cover plate connecting block; 9. contoured cover plate; 10. slide rail; 11. slider; 12. handle block; 13. operating block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 3 The utility model provides a technical solution: a middle frame spot welding fixture, including a spot welding platform 1, the surface of the spot welding platform 1 is provided with an interchangeable bottom plate 2, by the setting of the interchangeable bottom plate 2, the fixtures of different specifications can be directly replaced to facilitate use and improve work efficiency, the surface of the interchangeable bottom plate 2 is provided with a fixture bottom plate 3, the top of the fixture bottom plate 3 is provided with an inclined surface mounting block 4 and a movable pressure claw mechanism 6, the movable pressure claw mechanism 6 includes two movable adjustment blocks 601, a copper foil positioning block 602, a magnetic block 603, a pressure claw 604 and a positioning spring pin 605, the surfaces of the two movable adjustment blocks 601 are both provided with a copper foil positioning block 602, the mounting surface of the movable adjustment block 601 is set as an inclined surface, and the inclination angle is adapted to the mounting surface angle of the inclined surface mounting block 4, the surface of the copper foil positioning block 602 is provided with a magnetic block 6 03. A placement groove 606 is also provided on the surface of the copper foil positioning block 602. A positioning spring pin 605 is located in the placement groove 606. A clamping jaw operating bolt 607 is provided on the pressure jaw 604. The top of the copper foil positioning block 602 is rotatably provided with a pressure jaw 604 through a rotating shaft. A positioning spring pin 605 is provided on the copper foil positioning block 602 below the pressure jaw 604. The copper foil is positioned and placed by cooperating with the magnetic block 603, the pressure jaw 604 and the positioning spring pin 605 in the mobile pressure jaw mechanism 6. The copper foil is pressed tightly by magnetic attraction to ensure the accuracy during welding. The pressure jaw 604 can be adjusted forward, backward, left and right, with high flexibility, which can effectively solve the problem of inaccurate alignment. The positioning spring pin 605 is elastically provided to effectively avoid the copper foil being stuck by the positioning column and causing the copper foil to fall off when the product is taken out.

[0021] The inclined surface of the inclined surface mounting block 4 is installed with a connecting plate 5 by bolts, and the surface of the connecting plate 5 is slidably connected with a contoured positioning base 7 adapted to the shape of the middle frame product, and the top of the contoured positioning base 7 is also provided with a handle block 12 for easy adjustment, and the surface of the connecting plate 5 is provided with a slide rail 10, and the back of the contoured positioning base 7 is provided with a slider 11. Through the setting of the slide rail 10 and the slider 11, the position of the contoured positioning base 7 can be flexibly adjusted to improve the flexibility of the fixture, and the top of the contoured positioning base 7 is provided with a cover plate connecting block 8, and one end of the cover plate connecting block 8 is rotatably connected with a contoured cover plate 9. Through the setting of the contoured positioning base 7 and the contoured cover plate 9, the middle frame of the mobile phone is firmly fixed on the fixture, and its welding point is also exposed to facilitate welding. The surface of the contoured cover plate 9 is provided with an operating block 13 for convenient manual opening and closing, and through the setting of the handle block 12, the operating block 13 and the clamping claw operating bolt 607, it is convenient for the operator to operate the fixture components and flexibly use the fixture.

[0022] In the utility model, the working steps of the device are as follows:

[0023] By exchanging the bottom plate 2 with the jig, install it on the spot welding table 1, then open the contour cover plate 9 through the handle block 12, put the middle frame product into the contour positioning base 7, and close the contour cover plate 9;

[0024] Then, the copper foil is placed into the placement groove 606 on the copper foil positioning block 602 through the positioning spring pin 605, and the pressing claw 604 is rotated by the clamping claw operating bolt 607, so that the magnetic block 603 attracts the pressing claw 604 to press the copper foil, and then the laser spot welding of the copper foil is started;

[0025] After the spot welding is completed, the contoured cover plate 9 is opened and the middle frame product with the copper foil welded is taken out.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A middle frame spot welding jig, comprising a spot welding station (1), characterized in that: The surface of the spot welding table (1) is provided with an interchangeable base plate (2), the surface of the interchangeable base plate (2) is provided with a jig base plate (3), the top of the jig base plate (3) is provided with an inclined surface mounting block (4) and a movable pressing claw mechanism (6), the inclined surface of the inclined surface mounting block (4) is provided with a connecting plate (5) by bolts, the surface of the connecting plate (5) is slidably connected with a contoured positioning base (7) adapted to the shape of a middle frame product, the top of the contoured positioning base (7) is provided with a cover plate connecting block (8), one end of the cover plate connecting block (8) is rotatably connected with a contoured cover plate (9).

2. A middle frame spot welding jig according to claim 1, characterized in that: The movable pressure claw mechanism (6) comprises two movable adjustment blocks (601), a copper foil positioning block (602), a magnetic block (603), a pressure claw (604) and a positioning spring pin (605); the surfaces of the two movable adjustment blocks (601) are both provided with a copper foil positioning block (602); the surfaces of the copper foil positioning blocks (602) are provided with a magnetic block (603); the top of the copper foil positioning block (602) is rotatably provided with a pressure claw (604) via a rotating shaft; and a positioning spring pin (605) is provided on the copper foil positioning block (602) at a position below the pressure claw (604).

3. A middle frame spot welding jig according to claim 2, characterized in that: The surface of the copper foil positioning block (602) is also provided with a placement groove (606), the positioning spring pin (605) is located in the placement groove (606), and the clamping jaw operating bolt (607) is arranged on the pressing jaw (604).

4. The middle frame spot welding jig according to claim 2, characterized in that: The mounting surface of the movable adjustment block (601) is arranged as an inclined surface, and the inclination angle is adapted to the mounting surface angle of the inclined surface mounting block (4).

5. The middle frame spot welding jig according to claim 1, characterized in that: A slide rail (10) is provided on the surface of the connecting plate (5), and a slide block (11) is provided on the back of the contoured positioning base (7).

6. The middle frame spot welding jig according to claim 1, characterized in that: The top of the contoured positioning base (7) is also provided with a handle block (12) for easy adjustment.

7. The middle frame spot welding jig according to claim 1, characterized in that: An operating block (13) is provided on the surface of the contoured cover plate (9) for easy manual opening and closing.

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