Fixing tool for PCB welding

Abstract

The utility model discloses a fixing tool for welding a PCB (Printed Circuit Board), which relates to the technical field of mounting racks and comprises a placing table, ejector pins are arranged at the upper end of the placing table, and the placing table plays a certain supporting role in the welding process of the PCB; first movable frames are arranged on the two sides of the containing table, and rotary clamping mechanisms are arranged on the first movable frames and can move on the first movable frames. The two ends of the rotary clamping mechanism are movably connected with the second movable frame; the beneficial effects of the utility model are that the clamping head is used for fixing the PCB, and the clamping head is in contact with the PCB through the ejector pin, so that welding points on the PCB are prevented from being damaged; the device has the function of simply overturning the PCB while providing a better welding table top, optimizes the working process of double-sided welding, and has certain practicability.

Description

Technical Field

[0001] This utility model relates to the field of mounting bracket technology, and in particular to a fixing fixture for PCB board welding. Background Technology

[0002] A PCB (Printed Circuit Board) is an important electronic component, serving as the support for electronic components and the carrier for their electrical interconnection. PCBs are broadly classified into single-sided, double-sided, and multilayer boards based on the number of layers. Double-sided boards are a derivative of single-sided boards. When the wiring of a single-layer board cannot meet the needs of electronic components, a double-sided board is used. Both sides of a double-sided PCB have traces, and vias can connect the traces to form the necessary network connections. With technological advancements, double-sided PCBs have shown greater advantages over single-sided PCBs in various aspects. The manufacturing process of double-sided PCBs involves fixing the board and soldering electronic components.

[0003] Chinese invention patent number 201921351944.8 discloses a circuit board clamping and fixing device, including an operating platform. The operating platform includes an operating table body, two fixed clamping mechanisms and two movable clamping mechanisms. The operating table body has two T-shaped sliding grooves and a rectangular slot. The fixed clamping mechanism includes a first L-shaped base, a first sliding block, a first lead screw and a first motor. The movable clamping mechanism includes a second L-shaped base, a T-shaped slider, a second sliding block and a second lead screw.

[0004] The aforementioned circuit board clamping and fixing device can only perform soldering operations on one side of the circuit board when fixing a double-sided PCB circuit board. When soldering the other side later, the double-sided circuit board must be removed and re-fixed, which reduces the overall soldering efficiency. Utility Model Content

[0005] In this section, as well as in the abstract and title of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract, and the title of this application. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above or prior art, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a fixing fixture for PCB board welding, which solves the problem that it is not easy to perform double-sided welding with existing PCB board fixing devices.

[0008] To solve the above technical problems, the present invention provides the following technical solution: a fixing fixture for PCB board welding, which includes a placement platform, wherein a pin is provided at the upper end of the placement platform, and the placement platform plays a certain supporting role during the welding process of the PCB board.

[0009] The placement platform is provided with first movable frames on both sides, and the first movable frames are provided with rotating clamping mechanisms that are movable on the first movable frames; the two ends of the rotating clamping mechanisms are movably connected to second movable frames.

[0010] The rotating clamping mechanism includes a back plate, an adjustment frame is connected to the inner side of the back plate facing the placement platform, a clamping head is movably connected to the adjustment frame, a lifting handle is provided on the outer side of the placement platform, and a movable limiting head is provided on the lifting handle;

[0011] The first movable frame has a central movable head slot on the side facing the inner side of the back plate, a limiting opening at the upper end of the first movable frame, a built-in storage slot inside the first movable frame, and a movable notch between the built-in storage slot and the central movable head slot.

[0012] The second movable frame is provided with a vertical movable groove, and the upper end of the second movable frame is also provided with a rotating movable groove, the vertical movable groove and the rotating movable groove are on the same side.

[0013] As a preferred embodiment of the PCB board welding fixture of the present invention, the inner side of the back plate is provided with a central movable clamp, and the two ends of the outer side of the back plate are provided with side sliding clamps; the central movable clamp is slidably placed in the central movable clamp groove, and the side sliding clamps are slidably placed in the vertical movable groove.

[0014] As a preferred embodiment of the PCB board welding fixture of the present invention, the adjusting frame includes a fixed frame, the fixed frame is provided with an inner adjusting groove, and a movable frame is slidably arranged in the inner adjusting groove.

[0015] An adjustment slot is provided between the fixed frame and the movable frame, and the fixed frame and the movable frame support are fixed by fastening bolts.

[0016] As a preferred embodiment of the PCB board welding fixture of the present invention, the clamping head includes an adjusting head, one end of which is provided with a threaded clip, and the threaded clip is movably connected to the adjusting slot on the inner side of the movable frame.

[0017] As a preferred embodiment of the PCB board welding fixture of the present invention, the movable limiting head includes a rotating head, one end of the rotating head is provided with a connecting block, and the other end of the connecting block is provided with multiple limiting hooks.

[0018] The connecting block and the limiting hook pass through the back plate and the lifting handle.

[0019] As a preferred embodiment of the PCB board welding fixture of this utility model, the depth and width of the rotating movable groove and the vertical movable groove are the same, and the rotating movable groove is arc-shaped.

[0020] In a preferred embodiment of the PCB board welding fixture of this utility model, the inner diameter of the central movable clamp is the same as the inner diameter of the limiting port.

[0021] As a preferred embodiment of the PCB board welding fixture of the present invention, the front end of the limiting hook is provided with a smooth protrusion. After the rotating head is pushed, the front end of the limiting hook is squeezed and passes through the limiting opening, and the front end of the limiting hook is stuck on the outside of the limiting opening.

[0022] In a preferred embodiment of the PCB board welding fixture of the present invention, the width of the movable notch is greater than the thickness of the limiting hook, and the movable notch allows the limiting hook to pass through and move.

[0023] The beneficial effects of this utility model are as follows: In this utility model, the PCB board is clamped by the adjustment frame. The first movable frame and the second movable frame are limited, and the PCB board can be placed on the placement table. After the welding of one side is completed, the rotating clamping mechanism is raised to the limit port by manual means. The rotating clamping mechanism is limited by pressing. Then the rotating clamping mechanism is rotated 180°. Then the movable limit head is pulled out. Finally, the PCB board is placed on the placement table again for the welding of the second side.

[0024] The device uses a clamping head to fix the PCB board, and the clamping head contacts the PCB board through pins to avoid damaging the solder joints on the PCB board. While providing a good soldering table, the device also has the function of easily flipping the PCB board, optimizing the double-sided soldering workflow and has a certain degree of practicality. Attached Figure Description

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

[0026] Figure 1 A schematic diagram of the overall fixture used for PCB board soldering;

[0027] Figure 2 One of the schematic diagrams of a movable frame for fixing fixtures used in PCB board soldering;

[0028] Figure 3 Schematic diagram 2 of a movable frame for fixing fixtures used in PCB board soldering;

[0029] Figure 4 A schematic diagram showing the disassembly of the movable frame for fixing fixtures used in PCB board soldering;

[0030] Figure 5 Schematic diagram of the first movable frame of the PCB board welding fixture;

[0031] Figure 6 A schematic diagram of a rotating clamping mechanism for a PCB board soldering fixture.

[0032] Marked in the image:

[0033] 100. Rotary clamping mechanism; 200. Placement platform; 300. First movable frame; 400. Second movable frame; 101. Back plate; 102. Adjustment frame; 103. Clamping head; 104. Lifting handle; 105. Movable limit head; 101a. Central movable latch; 101b. Side sliding latch; 102a. Fixed frame; 102b. Adjustment slot; 102c. Inner adjustment slot; 102d. Movable frame; 102e. Fastening bolt; 103a. Adjustment head; 103b. Threaded latch; 105a. Rotating head; 105b. Connecting block; 105c. Limiting hook; 301. Central movable latch slot; 302. Movable notch; 303. Internal storage slot; 304. Limiting port; 401. Vertical movable slot; 402. Rotary movable slot. Detailed Implementation

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments. Example

[0037] Reference Figures 1-6 This is the first embodiment of the present utility model. This embodiment provides a fixing fixture for PCB board welding, which includes a placement table 200. The upper end of the placement table 200 is provided with a pin. During the welding process of the PCB board, the placement table 200 plays a certain supporting role.

[0038] The placement platform 200 is provided with first movable frames 300 on both sides, and a rotating clamping mechanism 100 is provided on the first movable frame 300. The rotating clamping mechanism 100 is movable on the first movable frame 300; the two ends of the rotating clamping mechanism 100 are movably connected to the second movable frame 400.

[0039] The rotary clamping mechanism 100 includes a back plate 101, an adjustment frame 102 is connected to the inner side of the back plate 101 facing the placement table 200, a clamping head 103 is movably connected to the adjustment frame 102, and a lifting handle 104 is provided on the outer side of the placement table 200, with a movable limit head 105 on the lifting handle 104.

[0040] The first movable frame 300 has a central movable head slot 301 on one side facing the inner side of the back plate 101, a limiting opening 304 at the upper end of the first movable frame 300, and an internal storage slot 303 inside the first movable frame 300. An movable notch 302 is provided between the internal storage slot 303 and the central movable head slot 301.

[0041] The second movable frame 400 is provided with a vertical movable groove 401, and the upper end of the second movable frame 400 is also provided with a rotating movable groove 402. The vertical movable groove 401 and the rotating movable groove 402 are on the same side.

[0042] The inner side of the back plate 101 is provided with a central movable latch 101a, and the two ends of the outer side of the back plate 101 are provided with side sliding latches 101b; the central movable latch 101a is slidably placed in the central movable latch groove 301, and the side sliding latches 101b are slidably placed in the vertical movable groove 401.

[0043] The adjustment frame 102 includes a fixed frame 102a, an inner adjustment groove 102c inside the fixed frame 102a, and a movable frame 102d slidably disposed inside the inner adjustment groove 102c;

[0044] An adjustment slot 102b is provided between the fixed frame 102a and the movable frame 102d, and the brackets of the fixed frame 102a and the movable frame 102d are fixed by fastening bolts 102e.

[0045] Preferably, the PCB board is mainly fixed by the clamping head 103. In practical applications, the side of the clamping head 103 facing the PCB board is also equipped with pins. Since the PCB board is fixed by manually rotating the clamping head 103, the position of the clamping head 103 on the PCB board needs to be changed by adjusting the movable frame 102d during fixing in order to avoid important solder joints and avoid damaging the PCB board.

[0046] The clamping head 103 includes an adjusting head 103a, one end of which is provided with a threaded clasp 103b, which is movably connected to the adjusting slot 102b inside the movable frame 102d.

[0047] The movable limiting head 105 includes a rotating head 105a, one end of which is provided with a connecting block 105b, and the other end of the connecting block 105b is provided with multiple limiting claws 105c.

[0048] The connecting block 105b and the limiting hook 105c pass through the back plate 101 and the lifting handle 104.

[0049] The depth and width of the rotating movable groove 402 and the vertical movable groove 401 are the same, and the rotating movable groove 402 is arc-shaped.

[0050] The inner diameter of the central movable card head 101a is the same as the inner diameter of the limiting port 304.

[0051] Preferably, the outer diameter of the central movable locking head 101a is consistent with the groove width of the central movable locking head groove 301, and the central movable locking head 101a slides along the central movable locking head groove 301. At the same time, the side sliding locking head 101b slides along the vertical movable groove 401.

[0052] The front end of the limiting hook 105c is provided with a smooth protrusion. After the rotating head 105a is pushed, the front end of the limiting hook 105c is squeezed and passes through the limiting port 304. The front end of the limiting hook 105c is then stuck on the outside of the limiting port 304.

[0053] The width of the movable notch 302 is greater than the thickness of the limiting hook 105c, and the movable notch 302 allows the limiting hook 105c to pass through and move.

[0054] Preferably, there are three movable notches 302, the width of the three movable notches 302 is the same, and the length of the movable notches 302 is the same as the length of the movable track of the central movable card head 101a in the central movable card head groove 301.

[0055] In use, the PCB board is installed between the clamping heads 103. When using the clamping heads 103 for fixation, avoid the soldering points. Then, manually slide the rotating clamping mechanism 100 downwards until the PCB board is placed on the placement table 200. Then, solder the first side of the PCB board. After soldering, manually move the rotating clamping mechanism 100 upwards until it reaches the limit port 304. Push the movable limit head 105, and 105c will lock the outside of the limit port 304. Then rotate the rotating clamping mechanism 100 180°, then unlock the movable limit head 105, and move the rotating clamping mechanism 100 downwards again to the upper end of the placement table 200 to solder the other side of the PCB board.

[0056] In summary, the device uses the adjusting frame 102 to clamp the PCB board. By limiting the first movable frame 300 and the second movable frame 400, the PCB board can be placed on the placement table 200. After the soldering of one side is completed, the rotating clamping mechanism 100 is raised to the limiting port 304 by manual means. The rotating clamping mechanism 100 is limited by pressing 105a and using 105c. Then the rotating clamping mechanism 100 is rotated 180°. After that, the movable limiting head 105 is pulled out. Finally, the PCB board is placed back on the placement table 200 for the soldering of the second side.

[0057] The device uses a clamping head 103 to fix the PCB board. The clamping head 103 contacts the PCB board through a pin to avoid damaging the solder joints on the PCB board. The device provides a good soldering table and has the function of easily flipping the PCB board, optimizing the double-sided soldering workflow and has a certain degree of practicality.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fixing fixture for PCB board soldering, characterized in that: include, A placement platform (200) is provided with a pin at its upper end. During the soldering process of the PCB board, the placement platform (200) plays a certain supporting role. The placement platform (200) is provided with first movable frames (300) on both sides, and a rotating clamping mechanism (100) is provided on the first movable frame (300). The rotating clamping mechanism (100) is movable on the first movable frame (300); the two ends of the rotating clamping mechanism (100) are movably connected to the second movable frame (400). The rotating clamping mechanism (100) includes a back plate (101), an adjustment frame (102) is connected to the inner side of the back plate (101) facing the placement platform (200), a clamping head (103) is movably connected to the adjustment frame (102), and a lifting handle (104) is provided on the outer side of the placement platform (200), and a movable limiting head (105) is provided on the lifting handle (104). The first movable frame (300) has a central movable head slot (301) on one side facing the inner side of the back plate (101), a limiting opening (304) is provided at the upper end of the first movable frame (300), and a built-in storage slot (303) is provided inside the first movable frame (300). A movable notch (302) is provided between the built-in storage slot (303) and the central movable head slot (301). The second movable frame (400) is provided with a vertical movable groove (401), and the upper end of the second movable frame (400) is also provided with a rotating movable groove (402). The vertical movable groove (401) and the rotating movable groove (402) are on the same side.

2. The PCB board welding fixture as described in claim 1, characterized in that: The inner side of the back plate (101) is also provided with a central movable latch (101a), and the two ends of the outer side of the back plate (101) are provided with side sliding latches (101b); the central movable latch (101a) is slidably placed in the central movable latch groove (301), and the side sliding latch (101b) is slidably placed in the vertical movable groove (401).

3. The PCB board welding fixture as described in claim 1, characterized in that: The adjustment frame (102) includes a fixed frame (102a), the fixed frame (102a) is provided with an inner adjustment groove (102c), and a movable frame (102d) is slidably provided in the inner adjustment groove (102c). An adjustment slot (102b) is provided between the fixed frame (102a) and the movable frame (102d), and the fixed frame (102a) and the movable frame (102d) are fixed by fastening bolts (102e).

4. The PCB board welding fixture as described in claim 3, characterized in that: The clamping head (103) includes an adjusting head (103a), one end of which is provided with a threaded chuck (103b), which is movably connected to the adjusting slot (102b) inside the movable frame (102d).

5. The PCB board welding fixture as described in claim 1, characterized in that: The movable limiting head (105) includes a rotating head (105a), one end of which is provided with a connecting block (105b), and the other end of the connecting block (105b) is provided with multiple limiting claws (105c). The connecting block (105b) and the limiting hook (105c) pass through the back plate (101) and the lifting handle (104).

6. The PCB board welding fixture as described in claim 1, characterized in that: The depth and width of the rotating movable groove (402) and the vertical movable groove (401) are the same, and the rotating movable groove (402) is arc-shaped.

7. The PCB board welding fixture as described in claim 2, characterized in that: The inner diameter of the central movable locking head (101a) is the same as the inner diameter of the limiting port (304).

8. The PCB board welding fixture as described in claim 5, characterized in that: The front end of the limiting hook (105c) is provided with a smooth protrusion. After the rotating head (105a) is pushed, the front end of the limiting hook (105c) is squeezed and passes through the limiting port (304). The front end of the limiting hook (105c) is then stuck on the outside of the limiting port (304).

9. The PCB board welding fixture as described in claim 5, characterized in that: The width of the movable notch (302) is greater than the thickness of the limiting claw (105c), and the movable notch (302) allows the limiting claw (105c) to pass through and move.

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