A circuit board clamping tool

Abstract

This utility model relates to the field of electronic product processing technology and discloses a circuit board clamping fixture, including a horizontal box and a vertical box. Movable frames are slidably connected to both sides of the surface of the horizontal box. It also includes a rotating cylinder rotatably connected to the surface of the vertical box. A connecting plate is bolted to one end of the rotating cylinder, and a fixing plate is bolted to the other side of the connecting plate. Clamping plates are provided at both the top and bottom of one side of the fixing plate, and a slider is bolted to one side of the clamping plate. This utility model uses a transmission assembly to drive a screw to rotate, allowing the threaded sleeve on the screw surface to pass through an annular groove, causing the annular body to move. The distance between the two clamping plates in the same set can be adjusted by a push-pull rod, adapting to circuit boards of different thicknesses without the need to change different clamps. Furthermore, the two sets of clamping plates can be adjusted synchronously and moved to adapt to circuit boards of different lengths, further improving the convenience of the fixture.

Description

Technical Field

[0001] This utility model relates to the field of electronic product processing technology, specifically a circuit board clamping fixture. Background Technology

[0002] Circuit board clamping fixtures are key tools used in electronic manufacturing to fix, position, and protect circuit boards. The fixtures are equipped with clamps on both sides to hold the circuit board in place and can also be flipped to facilitate maintenance, soldering, and other operations.

[0003] Some current fixtures can adjust the position of the two sets of fixtures on both sides to accommodate circuit boards of different lengths. However, the slots of the fixtures are not adjustable, and it is necessary to replace them with fixtures of different slot sizes to accommodate circuit boards of different thicknesses, which is quite troublesome. Utility Model Content

[0004] The purpose of this utility model is to provide a circuit board clamping fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circuit board clamping fixture, comprising a horizontal box and a vertical box, wherein movable frames are slidably connected to both sides of the surface of the horizontal box, and further comprising: A rotating cylinder is rotatably connected to the surface of the vertical box. A connecting plate is bolted to one end of the rotating cylinder, and a fixing plate is bolted to the other side of the connecting plate. Clamping plates are provided at both the top and bottom of one side of the fixing plate. A slider is bolted to one side of the clamping plate. A sliding groove is opened on the surface of the fixing plate, and the slider is slidably connected to the inner wall of the sliding groove. A vertical plate is bolted to the upper part of the vertical box. A screw is rotatably connected to the surface of the vertical plate. The screw extends into the interior of the rotating cylinder and is fixed to its inner wall by bearings. A threaded sleeve is threaded to the surface of the screw, and an annular groove is fixed to the surface of the threaded sleeve. A ring body is slidably connected to the surface of the rotating cylinder. The surface of the rotating cylinder has a transverse groove. An extension post is bolted to the inner wall of the ring body. The extension post passes through the transverse groove and extends to the inner wall of the annular groove. A push-pull rod is hinged to the surface of the ring body. The other end of the push-pull rod is hinged to the slider. Transmission components are provided inside and outside the transverse box and the vertical box.

[0006] Preferably, the transmission assembly includes a hand crank and a transmission column. The hand crank is rotatably connected to the surface of the horizontal box. One end of the hand crank extends into the interior of the horizontal box and is connected to the transmission column via a bevel gear. A movable sleeve is fixed to the lower part of the movable frame via a bearing seat. A vertical rotating rod is fixed to the interior of the vertical box via a bearing seat. The bottom end of the vertical rotating rod extends into the lower part of the movable frame and is connected to the movable sleeve via a bevel gear. The top end of the vertical rotating rod is connected to a screw via a bevel gear.

[0007] Preferably, the transmission column is composed of multiple sections of triangular and cylindrical rods, and the inner wall of the movable sleeve is designed in a triangular shape.

[0008] Preferably, a sliding rod is also bolted to the surface of the vertical plate, and the threaded sleeve is slidably connected to the surface of the sliding rod.

[0009] Preferably, a rubber pad is fixed to the surface of the clamping plate, and the surface of the rubber pad is provided with anti-slip ridges.

[0010] Preferably, a first threaded groove is provided through the surface of the movable frame, and a first knob bolt is threadedly connected to the inner wall of the first threaded groove.

[0011] Preferably, a second threaded groove is provided through the top of the vertical box, and a second knob bolt is threadedly connected to the inner wall of the second threaded groove.

[0012] Preferably, the vertical box and the movable frame are bolted together.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses a transmission component to drive the screw to rotate, allowing the threaded sleeve on the screw surface to pass through the annular groove, thus moving the ring. The distance between the two clamping plates in the same set can be adjusted by a push-pull rod, adapting to circuit boards of different thicknesses without the need to change different clamps. Moreover, the two sets of clamping plates can be adjusted synchronously and can be moved to adapt to circuit boards of different lengths, further improving the convenience of the tooling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the transverse box in this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the transmission column in this utility model; Figure 5 This is a cross-sectional view of the vertical box and the movable frame in this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram at point B; Figure 7 This is a cross-sectional view of the transfer cylinder of this utility model; Figure 8 This is a schematic diagram of the screen on the other side of the movable frame in this utility model; Figure 9 This is a schematic diagram of the structure of the transfer cylinder of this utility model; Figure 10 This is a schematic diagram of the vertical plate and its surface in this utility model; Figure 11 This is a schematic diagram of the structure of the ring body in this utility model; Figure 12 This is a partial structural diagram of the transmission column in this utility model.

[0015] In the diagram: 1. Horizontal box; 2. Movable frame; 3. Vertical box; 4. Transmission assembly; 41. Hand crank; 42. Transmission column; 43. Movable sleeve; 44. Vertical rotating rod; 5. Rotary cylinder; 6. Connecting plate; 7. Fixing plate; 8. Clamping plate; 9. Rubber pad; 10. Slider; 11. Slide groove; 12. Vertical plate; 13. Screw; 14. Horizontal groove; 15. Ring body; 16. Threaded sleeve; 17. Annular groove; 18. Second knob bolt; 19. Push-pull rod; 20. Extension column; 21. Slide rod; 22. First threaded groove; 23. First knob bolt; 24. Second threaded groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-12As shown, a circuit board clamping fixture includes a horizontal box 1 and a vertical box 3. Movable frames 2 are slidably connected to both sides of the surface of the horizontal box 1. The vertical box 3 is bolted to the movable frames 2. The movable frames 2 can slide along the surface of the horizontal box 1 and change position, thereby adjusting the position of the vertical box 3. A first threaded groove 22 is provided through the surface of the movable frame 2. A first knob bolt 23 is threadedly connected to the inner wall of the first threaded groove 22. After the positions of the movable frame 2 and the vertical box 3 are adjusted, rotating the first knob bolt 23 causes it to engage with the surface of the horizontal box 1 under the action of the thread on the inner wall of the first threaded groove 22. The circuit board is in contact with each other for positioning. A rotating cylinder 5 is rotatably connected to the upper part of the vertical box 3. A connecting plate 6 is bolted to one end of the rotating cylinder 5, and a fixing plate 7 is bolted to the other side of the connecting plate 6. Clamping plates 8 are provided at the top and bottom of one side of the fixing plate 7. A rubber pad 9 is fixed to the surface of the clamping plate 8. The surface of the rubber pad 9 is provided with anti-slip ridges, which increase the friction during the clamping of the circuit board. A slider 10 is bolted to one side of the clamping plate 8. A sliding groove 11 is opened on the surface of the fixing plate 7, and the slider 10 is slidably connected to the inner wall of the sliding groove 11, which allows the clamping plate 8 to slide along the surface of the fixing plate 7.

[0018] A vertical plate 12 is bolted to the upper part of the vertical box 3. A screw 13 is rotatably connected to the surface of the vertical plate 12. The screw 13 extends into the interior of the rotating cylinder 5 and is fixed to its inner wall by bearings, so that the screw 13 can rotate. The rotating cylinder 5 is not obstructed by the screw 13 during rotation. A threaded sleeve 16 is threadedly connected to the surface of the screw 13. An annular groove 17 is fixed to the surface of the threaded sleeve 16. A sliding rod 21 is also bolted to the surface of the vertical plate 12. The threaded sleeve 16 is slidably connected to the surface of the sliding rod 21. The threaded sleeve 16 can move horizontally along the surface of the sliding rod 21, thereby preventing the threaded sleeve 16 from rotating with the screw 13.

[0019] During operation, the movable frame 2 is first moved and slids on the surface of the horizontal box 1 to adjust the position between the two clamping plates 8 to accommodate circuit boards of different lengths. Then, the first knob bolt 23 is used to position the movable frame 2.

[0020] A ring body 15 is slidably connected to the surface of the rotating cylinder 5. A transverse groove 14 is opened on the surface of the rotating cylinder 5. An extension column 20 is bolted to the inner wall of the ring body 15. The extension column 20 passes through the transverse groove 14 and extends to the inner wall of the annular groove 17. A push-pull rod 19 is hinged to the surface of the ring body 15. The other end of the push-pull rod 19 is hinged to the slider 10. A transmission assembly 4 is provided inside and outside the transverse box 1 and the vertical box 3.

[0021] The transmission assembly 4 includes a hand crank 41 and a transmission column 42. The hand crank 41 is rotatably connected to the surface of the horizontal box 1. One end of the hand crank 41 extends into the interior of the horizontal box 1 and is connected to the transmission column 42 via a bevel gear. The transmission column 42 is composed of multiple sections of triangular and cylindrical rods. A movable sleeve 43 is fixed to the bottom of the movable frame 2 via a bearing seat, which allows the movable sleeve 43 to rotate. The inner wall of the movable sleeve 43 is triangular. A vertical rotating rod 44 is fixed to the interior of the vertical box 3 via a bearing seat. The bottom end of the vertical rotating rod 44 extends to the bottom of the movable frame 2 and is connected to the movable sleeve 43 via a bevel gear. The top end of the vertical rotating rod 44 is connected to the screw 13 via a bevel gear.

[0022] During the adjustment of the horizontal position of the movable frame 2, it can drive the movable sleeve 43 to slide along the surface of the transmission column 42. After the position of the movable frame 2 is adjusted, the two sides of the circuit board are placed inside the two sets of clamping plates 8 respectively. Then, the hand crank 41 is rotated. The hand crank 41 drives the transmission column 42 to rotate through the bevel gear. The transmission column 42 drives the vertical rotating rod 44 to rotate through the bevel gear. The vertical rotating rod 44 drives the screw 13 to rotate through the bevel gear. The threaded sleeve 16 on the surface of the screw 13 moves closer to the vertical plate 12 and... The ring body 15 is moved by the annular groove 17, and moves closer to the surface of the vertical box 3. The slider 10 is moved by the push-pull rod 19, so that the two clamping plates 8 in the same group move closer to each other and are in contact with the edge of the circuit board through the rubber pad 9 to achieve clamping. The distance between the threaded sleeve 16 and the vertical plate 12 can be changed by rotating the screw 13 to adjust the distance between the two clamping plates 8 in the same group, so as to adapt to circuit boards of different thicknesses. At the same time, the two sets of clamping plates 8 are adjusted synchronously, without the need to adjust them one by one, which is more convenient.

[0023] During the processing, the rotating drum 5 can flip the fixed plate 7 and the clamped circuit board for processing. Since the ring 15 can rotate with the rotating drum 5, it drives the extension column 20 to slide on the inner wall of the annular groove 17, maintaining the connection without causing obstruction. The top of the vertical box 3 is provided with a second threaded groove 24. The inner wall of the second threaded groove 24 is threaded with a second knob bolt 18. Rotating the second knob bolt 18 causes it to move closer to the surface of the rotating drum 5 under the action of the thread on the inner wall of the second threaded groove 24. The end of the second knob bolt 18 contacts the surface of the rotating drum 5 for positioning.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit board clamping fixture, comprising a horizontal box (1) and a vertical box (3), wherein movable frames (2) are slidably connected to both sides of the surface of the horizontal box (1), characterized in that, Also includes: A rotating cylinder (5) is rotatably connected to the surface of the vertical box (3). A connecting plate (6) is bolted to one end of the rotating cylinder (5), and a fixing plate (7) is bolted to the other side of the connecting plate (6). Clamping plates (8) are provided at the top and bottom of one side of the fixing plate (7). A slider (10) is bolted to one side of the clamping plate (8). A sliding groove (11) is opened on the surface of the fixing plate (7), and the slider (10) is slidably connected to the inner wall of the sliding groove (11). A vertical plate (12) is bolted to the upper part of the vertical box (3). A screw (13) is rotatably connected to the surface of the vertical plate (12). The screw (13) extends into the interior of the rotating cylinder (5) and is fixed to its inner wall by bearings. A threaded sleeve (16) is threadedly connected to the surface of the screw (13). An annular groove (17) is fixed to the surface of the threaded sleeve (16). A ring (15) is slidably connected to the surface of the rotating cylinder (5). A transverse groove (14) is provided on the surface of the rotating cylinder (5). An extension column (20) is bolted to the inner wall of the ring (15). The extension column (20) passes through the transverse groove (14) and extends to the inner wall of the annular groove (17). A push-pull rod (19) is hinged to the surface of the ring (15). The other end of the push-pull rod (19) is hinged to the slider (10). A transmission assembly (4) is provided inside and outside the transverse box (1) and the vertical box (3).

2. The circuit board clamping fixture according to claim 1, characterized in that: The transmission assembly (4) includes a hand crank (41) and a transmission column (42). The hand crank (41) is rotatably connected to the surface of the horizontal box (1). One end of the hand crank (41) extends into the interior of the horizontal box (1) and is connected to the transmission column (42) via a bevel gear. A movable sleeve (43) is fixed to the bottom of the movable frame (2) via a bearing seat. A vertical rotating rod (44) is fixed to the interior of the vertical box (3) via a bearing seat. The bottom end of the vertical rotating rod (44) extends into the bottom of the movable frame (2) and is connected to the movable sleeve (43) via a bevel gear. The top end of the vertical rotating rod (44) is connected to the screw (13) via a bevel gear.

3. The circuit board clamping fixture according to claim 2, characterized in that: The transmission column (42) is composed of multiple sections of triangular and cylindrical rods, and the inner wall of the movable sleeve (43) is designed in a triangular shape.

4. The circuit board clamping fixture according to claim 1, characterized in that: The surface of the vertical plate (12) is also bolted with a slide rod (21), and the threaded sleeve (16) is slidably connected to the surface of the slide rod (21).

5. The circuit board clamping fixture according to claim 1, characterized in that: A rubber pad (9) is fixed to the surface of the clamping plate (8), and the surface of the rubber pad (9) is provided with anti-slip ridges.

6. The circuit board clamping fixture according to claim 1, characterized in that: The surface of the movable frame (2) is provided with a first threaded groove (22), and the inner wall of the first threaded groove (22) is threaded with a first knob bolt (23).

7. The circuit board clamping fixture according to claim 1, characterized in that: The top of the vertical box (3) is provided with a second threaded groove (24), and the inner wall of the second threaded groove (24) is threaded with a second knob bolt (18).

8. A circuit board clamping fixture according to claim 1, characterized in that: The vertical box (3) is bolted to the movable frame (2).

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