Fixing device for non-destructive repair of special-shaped product

Abstract

The utility model discloses a fixing device for non-destructive repair of a special-shaped product. The device comprises a sliding support frame, a fastening screw used for fixing the sliding support frame and a repair workbench, a support chain used for bearing a printed board, and a fastening nut used for connecting the sliding support frame and the support chain. In the repairing process, according to the shape and the size of the printed board, a certain number of supporting frames are fixed to a repairing workbench through fastening screws, then a certain number of supporting chains are connected through fastening nuts, and then the connected supporting chains are fixed to the sliding supporting frames through fastening nuts. And finally, the special-shaped printed board is placed on the supporting chain for repair operation. The universal fixing device designed by the utility model aims at nondestructive repair of all special-shaped products, has good compatibility for special-shaped printed boards, greatly improves the production efficiency, saves the production cost, and lays an automatic production foundation for the diversity of subsequent products.

Description

Technical Field

[0001] The invention relates to the technical field of printed circuit board repair and modification, in particular to a fixing device for non-destructive repair of special-shaped products. Background Art

[0002] With the rich variety of aerospace products, the shapes of printed circuit boards are becoming more and more complex. A single rectangular printed circuit board can no longer meet the current scientific research and development requirements, so printed circuit boards of various shapes have emerged to match the current product structure. Among them, special-shaped printed circuit boards cannot be firmly placed on the rework work platform for operation during the repair and modification process.

[0003] The conventional rework method is to make a special tooling for special-shaped printed circuit boards, place the special tooling in the special tooling, and then fix the special tooling with a rectangular shape on the rework work platform, and then repair the special-shaped printed circuit boards. The special tooling has poor compatibility, which not only increases production costs, but also seriously affects the production cycle.

[0004] Therefore, it is urgent to design a fixing device for non-destructive repair of special-shaped products to solve the above problems. Utility Model Content

[0005] The utility model provides a fixing device for non-destructive repair of special-shaped products, which has good compatibility with special-shaped printed circuit boards, greatly improves production efficiency, saves production costs, and lays the foundation for automated production for subsequent product diversity. The specific technical solution is as follows:

[0006] A fixing device for non-destructive repair of special-shaped products, the fixing device comprising: a sliding support frame, a rework workbench, fastening screws, a support chain, and a fastening nut;

[0007] The rework workbench is a rectangular plate-shaped structure with a rectangular opening in the middle; one end of the sliding support frame is provided with a threaded hole, the fastening screw passes through the threaded hole and is fixed to the sliding support frame, and one end of the support chain is connected to the other end of the sliding support frame through a fastening nut;

[0008] The sliding support frame is installed on the frame of the rework workbench and is fixed to the frame by fastening screws; the other end of the support chain is fixed on the special-shaped printed circuit board.

[0009] Preferably, the sliding support frame, the fastening screw, the support chain, and the fastening nut each comprise one, which together constitute a sliding support assembly, and a plurality of the sliding support assemblies are disposed on the fixing device.

[0010] Preferably, in each sliding support assembly, a plurality of support chains are provided, and the plurality of support chains are movably connected via the fastening nuts.

[0011] Preferably, the screw end of the fastening screw is provided with anti-slip grooves.

[0012] Preferably, the rework workbench is made of metal material.

[0013] Preferably, the sliding support frame and the support chain are made of metal material.

[0014] Preferably, the support chain is made of magnetic material, and the support chain in contact with the special-shaped printed circuit board absorbs the special-shaped product through magnetism.

[0015] Preferably, a suction cup is provided at the end of the support chain in contact with the special-shaped printed circuit board, and the special-shaped printed circuit board is fixed by the suction cup.

[0016] Preferably, the rework workbench is made of metal material.

[0017] Preferably, the rework workbench is made of insulating material.

[0018] The beneficial effects of the utility model are as follows:

[0019] The utility model discloses a fixing device for non-destructive repair of special-shaped products. The device includes: a sliding support frame, a fastening screw for fixing the sliding support frame and a rework table, a support chain for supporting a printed circuit board, and a fastening nut connecting the sliding support frame and the support chain. During the rework process, according to the shape and size of the printed circuit board, a certain number of support frames are first fixed on the rework table with fastening screws, and then a certain number of support chains are connected with fastening nuts, and then the connected support chains are fixed on the sliding support frame with fastening nuts, and finally the special-shaped printed circuit board is placed on the support chain for rework operation. This article designs a universal fixing device for non-destructive repair of all special-shaped products, which has good compatibility with special-shaped printed circuit boards, greatly improves production efficiency, saves production costs, and lays a foundation for automated production for subsequent product diversity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an assembly drawing of a fixture for non-destructive repair of special-shaped products;

[0021] Figure 2 It is an assembly drawing of a sliding support component of a fixture for non-destructive repair of special-shaped products;

[0022] Among them, 1. Sliding support frame; 2. Rework workbench; 3. Fastening screws; 4. Support chain; 5. Fastening nuts; 6. Special-shaped printed circuit board. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of this specification clearer, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and their corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this document.

[0024] The following combination Figure 1-2 , describes in detail the technical solutions provided by each embodiment of this specification. Specific embodiment 1:

[0026] The utility model provides a fixing device for non-destructive repair of special-shaped products, which has good compatibility with special-shaped printed circuit boards, greatly improves production efficiency, saves production costs, and lays the foundation for automated production for subsequent product diversity. The specific technical solution is as follows:

[0027] A fixing device for non-destructive repair of special-shaped products, the fixing device comprising: a sliding support frame 1, a rework workbench 2, a fastening screw 3, a supporting chain 4, and a fastening nut 5;

[0028] The rework table 2 is a rectangular plate-shaped structure with a rectangular opening in the middle; one end of the sliding support frame 1 is provided with a threaded hole, and the fastening screw 3 is fixed to the sliding support frame 1 through the threaded hole, and one end of the support chain 4 is connected to the other end of the sliding support frame 1 through a fastening nut 5;

[0029] The sliding support frame 1 is installed on the frame of the rework workbench 2 and is fixed to the frame by fastening screws 3; the other end of the support chain 4 is fixed on the special-shaped printed circuit board 6.

[0030] Preferably, the sliding support frame 1, the fastening screw 3, the support chain 4, and the fastening nut 5 are each one, which together constitute a sliding support assembly, and a plurality of the sliding support assemblies are arranged on the fixing device.

[0031] Preferably, in each sliding support assembly, a plurality of support chains 4 are provided, and the plurality of support chains are movably connected via the fastening nuts 5 .

[0032] Preferably, the screw end of the fastening screw 3 is provided with anti-slip grooves.

[0033] Preferably, the rework bench 2 is made of metal.

[0034] Preferably, the sliding support frame 1 and the support chain 4 are made of metal materials.

[0035] Preferably, the support chain 4 is made of magnetic material, and the support chain in contact with the special-shaped printed circuit board 6 absorbs the special-shaped product through magnetism.

[0036] Preferably, a suction cup is provided at the end of the support chain 4 in contact with the special-shaped printed circuit board 6, and the special-shaped printed circuit board 6 is fixed by the suction cup.

[0037] Preferably, the rework bench 2 is made of metal.

[0038] Preferably, the rework bench 2 is made of insulating material.

[0039] The specific implementation method and steps of the present invention are as follows:

[0040] (1) The operator must wear anti-static work clothes, work shoes and work hats. After passing the static test, the operator must enter the anti-static protection area and wear an anti-static wristband during the entire operation process.

[0041] (2) Assemble at least two support frames in the above-mentioned fixing device onto the rework workbench using fastening screws;

[0042] (3) Use tightening nuts to connect a certain number of support chains;

[0043] (4) Use the tightening nut to assemble the support chain to the support frame of the fixing device;

[0044] (5) Place the special-shaped printed circuit board on the support chain of the fixture that has been fixed to the rework workbench;

[0045] (6) By adjusting the number of fixtures used, as well as the number and angle of support chains, special-shaped printed circuit boards can be supported more stably.

Claims

1. A fixing device for non-destructive repair of special-shaped products, characterized in that: The fixing device comprises: a sliding support frame (1), a rework workbench (2), a fastening screw (3), a supporting chain (4), and a fastening nut (5); The rework workbench (2) is a rectangular plate-shaped structure with a rectangular opening in the middle; one end of the sliding support frame (1) is provided with a threaded hole, and the fastening screw (3) passes through the threaded hole and is fixed to the sliding support frame (1); one end of the support chain (4) is connected to the other end of the sliding support frame (1) via a fastening nut (5); The sliding support frame (1) is installed on the frame of the rework workbench (2) and is fixed to the frame by means of fastening screws (3); the other end of the support chain (4) is fixed on the special-shaped printed circuit board (6).

2. A fixing device for non-destructive repair of special-shaped products as claimed in claim 1, characterized in that: The sliding support frame (1), the fastening screw (3), the support chain (4), and the fastening nut (5) are each one, and together they form a sliding support assembly, and a plurality of the sliding support assemblies are arranged on the fixing device.

3. A fixing device for non-destructive repair of special-shaped products as claimed in claim 2, characterized in that: In each sliding support assembly, a plurality of support chains (4) are provided, and the plurality of support chains are movably connected via the fastening nuts (5).

4. A fixing device for non-destructive repair of special-shaped products as claimed in claim 1, characterized in that: The screw end of the fastening screw (3) is provided with anti-slip grooves.

5. A fixing device for non-destructive repair of special-shaped products as claimed in claim 1, characterized in that: The material of the rework workbench (2) is metal material.

6. A fixing device for non-destructive repair of special-shaped products as claimed in claim 1, characterized in that: The sliding support frame (1) and the support chain (4) are made of metal materials.

7. A fixing device for non-destructive repair of special-shaped products as claimed in claim 1, characterized in that: The support chain (4) is made of magnetic material, and the support chain in contact with the special-shaped printed circuit board (6) absorbs the special-shaped product through magnetism.

8. The fixing device for non-destructive repair of special-shaped products as claimed in claim 1, characterized in that: The end of the support chain (4) in contact with the special-shaped printed circuit board (6) is provided with a suction cup, and the special-shaped printed circuit board (6) is fixed by the suction cup.

9. The fixing device for non-destructive repair of special-shaped products as claimed in claim 1, characterized in that: The material of the rework workbench (2) is metal material.

10. The fixing device for non-destructive repair of special-shaped products according to claim 1, characterized in that: The material of the rework workbench (2) is insulating material.

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