Circuit board placing bracket

Abstract

A circuit board placing bracket comprises a rectangular bottom frame, a plurality of placing units are arranged on the rectangular bottom frame, and the placing units are arranged on the rectangular bottom frame at intervals. Each placing unit comprises a rotating seat mounted on one side of the rectangular bottom frame through a screw, an L-shaped arm is rotationally arranged at the outer side end of the rotating seat through a hinge shaft, an inner plate is welded to the other end of the L-shaped arm, a plurality of guide pins are arranged on the inner plate in a penetrating mode, L-shaped pieces are welded to the inner side ends of the guide pins, springs are arranged on the guide pins in a sleeving mode, and the springs are located between the inner plate and the L-shaped pieces; the cross section of the L-shaped piece is of a concave structure, the rotationally arranged L-shaped piece can rotate outwards when being placed, so that the circuit board can be conveniently placed and taken out, and the L-shaped piece of the concave structure plays a role in limiting the circuit board.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, and in particular to a circuit board placement bracket. Background Technology

[0002] After circuit boards are routerd, a large amount of debris inevitably remains on the hole walls. This debris affects the quality of the circuit board. A common method to remove the debris is high-speed air blowing; however, this method can only be done one board at a time, resulting in low efficiency. Currently, plasma descaling is also used to clean the inner walls of the holes. This method can process multiple circuit boards simultaneously and is widely used. However, during operation, the circuit board needs to be placed on a support bracket for positioning. The bracket currently used has limitations: it is not suitable for placing and fixing thinner circuit boards, and because the positioning effect is poor, it can easily scratch the outer walls of the circuit board, such as the circuit layers. Utility Model Content

[0003] This utility model provides a circuit board placement bracket to overcome the shortcomings of the prior art. It solves the problems that the existing brackets are not suitable for placing thin circuit boards and have poor circuit board positioning stability, and has strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0005] A circuit board placement bracket includes a rectangular base frame with multiple placement units on the rectangular base frame. The placement units are arranged at intervals on the rectangular base frame. The placement units are arranged at intervals to facilitate the placement and removal of circuit boards and to facilitate the removal of adhesive.

[0006] The placement unit includes a rotating seat mounted on one side of a rectangular base frame by screws. An L-shaped arm is rotatably mounted on the outer end of the rotating seat via a hinge shaft. An inner plate is welded to the other end of the L-shaped arm. Multiple guide pins are mounted on the inner plate. An L-shaped component is welded to the inner end of each guide pin. A spring is fitted on the guide pin. The spring is located between the inner plate and the L-shaped component. The L-shaped component has a concave cross-section. The L-shaped component, which is rotatably mounted, can be rotated outward during placement, thereby facilitating the placement and removal of the circuit board. The concave L-shaped component also serves to limit the movement of the circuit board.

[0007] The other end of the horizontal section of the L-shaped component has a vertical recess. The lower inner wall of the vertical recess has a pair of connecting protrusions with grooves. The other end of the horizontal section of the L-shaped component has a pair of insert plates, which are inserted into the grooves. The vertical recess limits the other end of the circuit board. In order to facilitate the limitation of the L-shaped component's posture, a spring is provided. The elastic force provided by the spring can push the insert plates inward to insert them into the grooves.

[0008] Furthermore, in order to limit the upper end of the circuit board and to accommodate circuit boards of different widths, a movable recess is fitted on the vertical section of the L-shaped piece. The outer end of the movable recess is connected to a tightening screw by a thread. The outer end of the tightening screw is provided with an end cap. The inner end of the tightening screw is pressed against the vertical section of the L-shaped piece. An upper recess is installed on the inner end of the movable recess by a screw. The lower wall of the upper recess is open, and the outer end of the upper recess abuts against the inner wall of the vertical section of the L-shaped piece.

[0009] Furthermore, in order to limit the movement of circuit boards of different thicknesses and prevent the circuit boards from shaking during the adhesive removal operation, a pair of inner pressure plates are provided inside the upper concave part. Multiple guide rods are welded to the inner pressure plates. The guide rods pass through both sides of the upper concave part, and an inner pressure spring is sleeved on the guide rod. The inner pressure spring is located inside the upper concave part, and the inner end of the inner pressure spring acts on the outer wall of the inner pressure plate.

[0010] Furthermore, in order to fix the circuit board, an inner top recess is inserted into the vertical recess. The vertical section of the inner top recess is located inside the vertical recess, and the horizontal section of the inner top recess passes through the vertical recess. An outer pull plate is welded to the outer end of the horizontal section of the inner top recess. An adjusting screw is connected to the outer pull plate by a thread. The inner end of the adjusting screw abuts or rotates on the vertical recess, and a rotating cap is provided on the outer end of the adjusting screw.

[0011] Furthermore, to limit the circuit board inserted into the L-shaped component, a rectangular hole is provided in the transverse section of the L-shaped component. A lower extension plate passes through the rectangular hole, and the lower end of the lower extension plate is bent outward to form an action plate. A pair of L-shaped clamping plates are provided inside the L-shaped component. The upper end of the lower extension plate is formed on the transverse section of the L-shaped clamping plate. An oblique hole is provided on the action plate, and there is an angle between the length direction of the oblique hole and the length direction of the action plate. A pressure rod passes through the oblique hole. An end plate is welded to the lower wall of the transverse section of the L-shaped component. A pair of guide rods passes through the end plate. An inner push plate is welded to the inner end of the guide rod. An outer top spring is sleeved on the guide rod. The outer top spring is located between the inner push plate and the end plate. A T-shaped plate is welded to the inner push plate. The pressure rod is rotatably mounted on the T-shaped plate, and the lower end of the pressure rod is connected to a nut by a thread. The nut is located on the lower side of the T-shaped plate.

[0012] The advantages of the above technical solution are:

[0013] This invention facilitates the placement and retrieval of circuit boards. Furthermore, it allows for adaptive positioning based on the length, width, height, and other dimensions of the circuit board, ensuring the stability of the positioning and preventing scratches on the circuit board. Attached Figure Description

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0015] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .

[0016] Figure 2 A magnified view of point A is shown.

[0017] Figure 3 A three-dimensional structure of one embodiment is shown. Figure 2 .

[0018] Figure 4 A magnified view of point B is shown.

[0019] Figure 5 A three-dimensional structure of one embodiment is shown. Figure 3 . Detailed Implementation

[0020] like Figures 1-5 As shown, a circuit board placement bracket includes a rectangular base frame 1, on which a plurality of placement units 2 are provided, and the placement units 2 are arranged at intervals on the rectangular base frame 1.

[0021] The placement unit 2 includes a rotating seat 20 that is screwed onto one side of a rectangular base frame 1. An L-shaped arm 22 is rotatably mounted on the outer end of the rotating seat 20 via a hinge shaft 21. An inner plate 23 is welded to the other end of the L-shaped arm 22. Multiple guide pins 24 are threaded through the inner plate 23. An L-shaped part 26 is welded to the inner end of the guide pin 24. A spring 25 is sleeved on the guide pin 24. The spring 25 is located between the inner plate 23 and the L-shaped part 26. The cross-section of the L-shaped part 26 is concave.

[0022] The other end of the horizontal section of the L-shaped part 26 is provided with a vertical recess 5. The lower inner wall of the vertical recess 5 is provided with a pair of connecting protrusions 50. The connecting protrusions 50 are provided with grooves. The other end of the horizontal section of the L-shaped part 26 is provided with a pair of insert plates 51, which are inserted into the grooves.

[0023] In this embodiment, when placing the circuit board, the L-shaped component 26 is first pulled outward to move the insert plate 51 out of the groove, and then the L-shaped component 26 is rotated outward.

[0024] Next, the operator places the circuit board in the L-shaped part 26. After placement, the L-shaped part 26 is rotated upward. Then, the L-shaped part 26 will move inward under the action of the spring 25 so that the insert plate 51 is inserted into the groove. At this time, the front and rear ends and the bottom end of the circuit board will be limited by the L-shaped part 26 and the vertical recess 5.

[0025] Finally, the bracket and the circuit board on it are placed in a plasma de-adhesive device for de-adhesive removal.

[0026] In some embodiments, a movable recess 4 is fitted onto the vertical section of the L-shaped member 26. A tightening screw 40 is threadedly connected to the outer end of the movable recess 4. An end cap 41 is provided on the outer end of the tightening screw 40. The inner end of the tightening screw 40 is pressed against the vertical section of the L-shaped member 26. An upper recess 42 is installed on the inner end of the movable recess 4 by a screw. The lower wall of the upper recess 42 is open, and the outer end of the upper recess 42 abuts against the inner wall of the vertical section of the L-shaped member 26.

[0027] The upper concave part 42 is provided with a pair of inner pressure plates 44. Multiple guide rods 43 are welded on the inner pressure plates 44. The guide rods 43 pass through both sides of the upper concave part 42. An inner pressure spring is sleeved on the guide rod 43. The inner pressure spring is located inside the upper concave part 42. The inner end of the inner pressure spring acts on the outer wall of the inner pressure plate 44.

[0028] In this embodiment, when the upper end of the circuit board is limited, the operator inserts the circuit board into the L-shaped part 26 and moves the upper concave part 42 inward so that the bottom of the upper concave part 42 acts on one end of the circuit board, thereby achieving the purpose of fixing the circuit board. When the upper concave part 42 limits one end of the circuit board, the operator tightens the top screw 40 to lock the position of the upper concave part 42. When the circuit board is limited, the inner pressure plate 44 also moves inward under the action of the inner pressure spring to limit both sides of the circuit board.

[0029] In some embodiments, an inner top recess 55 is inserted into the vertical recess 5. The vertical section of the inner top recess 55 is located inside the vertical recess 5, and the transverse section of the inner top recess 55 passes through the vertical recess 5. An outer pull plate 54 is welded to the outer end of the transverse section of the inner top recess 55. An adjusting screw 52 is threadedly connected to the outer pull plate 54. The inner end of the adjusting screw 52 abuts against or rotates on the vertical recess 5, and a rotating cap 53 is provided at the outer end of the adjusting screw 52.

[0030] In order to limit the position of the L-shaped part 26 and the front and rear ends of the vertical recess 5, the adjusting screw 52 can be rotated to adjust the position of the inner top recess 55, so that the inner wall of the inner top recess 55 acts on one end of the circuit board, thereby achieving the purpose of fixing the front and rear ends of the circuit board.

[0031] In some embodiments, the transverse section of the L-shaped member 26 has a rectangular hole, a lower extension plate passes through the rectangular hole, and the lower end of the lower extension plate is bent outward to form an action plate 36. The interior of the L-shaped member 26 is provided with a pair of L-shaped clamping plates 27, the upper end of the lower extension plate is formed on the transverse section of the L-shaped clamping plate 27, and the action plate 36 has an oblique hole 37. There is an angle between the length direction of the oblique hole 37 and the length direction of the action plate 36, and a pressure rod 34 passes through the oblique hole 37. An end plate 28 is welded to the lower wall of the transverse section of the L-shaped part 26. A pair of guide rods 29 are threaded through the end plate 28. An inner push plate 30 is welded to the inner end of the guide rod 29. An outer top spring 31 is sleeved on the guide rod 29. The outer top spring 31 is located between the inner push plate 30 and the end plate 28. A T-shaped plate 32 is welded to the inner push plate 30. A pressure rod 34 is rotatably mounted on the T-shaped plate 32. The lower end of the pressure rod 34 is connected to a nut 35 by a thread. The nut 35 is located on the lower side of the T-shaped plate 32.

[0032] In this embodiment, when placing the circuit board, the guide rod 29 is pulled to move the T-shaped plate 32 and the pressure rod 34. During the movement, the pressure rod 34 acts on the oblique hole 37, thereby causing the action plate 36 and the L-shaped clamping plate 27 to move outward. Then, the operator places the circuit board between the L-shaped clamping plates 27 and then releases the tension on the guide rod 29. After that, the T-shaped plate 32 will move under the action of the outer top spring 31. At this time, the pressure rod 34 acts on the oblique hole 37, and the L-shaped clamping plate 27 limits the two sides of the circuit board. This can improve the stability of the circuit board limit and adapt to the limit of circuit boards of different thicknesses.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A circuit board placement bracket, characterized in that, It includes a rectangular base frame (1), and multiple placement units (2) are provided on the rectangular base frame (1). The placement units (2) are arranged at intervals on the rectangular base frame (1). The placement unit (2) includes a rotating seat (20) mounted on one side of a rectangular base frame (1) by screws. An L-shaped arm (22) is rotatably provided on the outer end of the rotating seat (20) via a hinge shaft (21). An inner plate (23) is welded to the other end of the L-shaped arm (22). Multiple guide pins (24) are provided on the inner plate (23). An L-shaped part (26) is welded to the inner end of the guide pin (24). A spring (25) is sleeved on the guide pin (24). The spring (25) is located between the inner plate (23) and the L-shaped part (26). The cross section of the L-shaped part (26) is concave. The other end of the horizontal section of the L-shaped part (26) is provided with a vertical recess (5). The lower end of the vertical recess (5) is provided with a pair of connecting protrusions (50). The connecting protrusions (50) are provided with grooves. The other end of the horizontal section of the L-shaped part (26) is provided with a pair of inserts (51). The inserts (51) are inserted into the grooves.

2. The circuit board placement bracket according to claim 1, characterized in that, A movable recess (4) is fitted on the vertical section of the L-shaped part (26). A tightening screw (40) is threaded to the outer end of the movable recess (4). An end cap (41) is provided on the outer end of the tightening screw (40). The inner end of the tightening screw (40) is pressed against the vertical section of the L-shaped part (26). An upper recess (42) is installed on the inner end of the movable recess (4) by a screw. The lower wall of the upper recess (42) is open. The outer end of the upper recess (42) abuts against the inner wall of the vertical section of the L-shaped part (26).

3. The circuit board placement bracket according to claim 2, characterized in that, The upper concave part (42) is provided with a pair of inner pressure plates (44). Multiple guide rods (43) are welded on the inner pressure plates (44). The guide rods (43) pass through both sides of the upper concave part (42). An inner pressure spring is sleeved on the guide rod (43). The inner pressure spring is located on the inner side of the upper concave part (42). The inner end of the inner pressure spring acts on the outer wall of the inner pressure plate (44).

4. The circuit board placement bracket according to claim 1, characterized in that, An inner top recess (55) is inserted into the vertical recess (5). The vertical section of the inner top recess (55) is located inside the vertical recess (5). The horizontal section of the inner top recess (55) passes through the vertical recess (5). An outer pull plate (54) is welded to the outer end of the horizontal section of the inner top recess (55). An adjusting screw (52) is connected to the outer pull plate (54) by a thread. The inner end of the adjusting screw (52) abuts against the vertical recess (5). A rotating cap (53) is provided on the outer end of the adjusting screw (52).

5. The circuit board placement bracket according to claim 1, characterized in that, The L-shaped part (26) has a rectangular hole in its transverse section. A lower extension plate passes through the rectangular hole. The lower end of the lower extension plate is bent outward to form an action plate (36). The L-shaped part (26) has a pair of L-shaped clamps (27) inside. The upper end of the lower extension plate is formed on the transverse section of the L-shaped clamp (27). An oblique hole (37) is provided on the action plate (36). There is an angle between the length direction of the oblique hole (37) and the length direction of the action plate (36). A pressure rod (34) passes through the oblique hole (37). The lower wall of the transverse section of the L-shaped part (26) is welded with an end plate (28). A pair of guide rods (29) are passed through the end plate (28). An inner push plate (30) is welded to the inner end of the guide rod (29). An outer top spring (31) is sleeved on the guide rod (29). The outer top spring (31) is located between the inner push plate (30) and the end plate (28). A T-shaped plate (32) is welded on the inner push plate (30). A pressure rod (34) is rotatably mounted on the T-shaped plate (32). The lower end of the pressure rod (34) is connected to a nut (35) by a thread. The nut (35) is located on the lower side of the T-shaped plate (32).

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