Adjustable clamp for circuit board drilling

Abstract

The utility model relates to the technical field of circuit board drilling, clamping and positioning, in particular to an adjustable clamp for circuit board drilling. Comprising a base, a supporting table is fixedly connected to the upper surface of the base, two supporting frames are arranged on the surface of the base and located on the two sides of the supporting table respectively, an adjusting mechanism is arranged on the surface of each supporting frame and comprises two sliding frames, and the inner walls of the two sliding frames are slidably connected with the surfaces of the supporting frames; a limiting rod is fixedly connected to the upper surface of the sliding frame, a limiting frame is slidably connected to the arc surface of the limiting rod, a butt joint block is fixedly connected to the side, close to the supporting table, of the limiting frame, and a fixing block is fixedly connected to the position, corresponding to the butt joint block, of the surface of the side wall of the sliding frame. The adjustable clamp for drilling the circuit board has the advantage that clamping, limiting and drilling operation can be conveniently carried out on circuit boards of different types.

Description

Technical Field

[0001] This utility model relates to the field of circuit board drilling clamping and positioning technology, and in particular to an adjustable clamp for circuit board drilling. Background Technology

[0002] Adjustable fixtures for drilling circuit boards are typically used to precisely fix and position circuit boards, ensuring accuracy and stability during the drilling process. In the circuit board drilling process, pins are usually used to fix the circuit board to the edge of the board, thus fixing the circuit board to the drill table. This is a common practice in the circuit board drilling process.

[0003] Existing technologies, such as the utility model patent with publication number CN215499778U, disclose a circuit board drilling fixture. This patent includes a fixture body, a threaded rod, a torsion spring, a rotating shaft, and a rubber pad. The fixture body has a first through slot. A moving rod is provided on the outside of the insertion rod. The insertion rod has a second through slot. A rotating shaft is provided on the outside of the placement box. A blocking cover is provided on the outside of the fixture body, and a connecting block is connected to the outside of the blocking cover. A compression spring is provided inside the connecting block, and a limit rod is connected to the outside of the compression spring. A third through slot is provided on the placement box, and a rubber pad is connected to the outside of the connecting block. This circuit board drilling fixture, with its insertion rod and moving rod, allows the insertion rod to be inserted into the first through slot on the fixture body for positioning. Then, by rotating the threaded rod, the fixture can more accurately position the circuit board, preventing insufficient drilling and thus avoiding the scrapping of the circuit board, making it more convenient to use.

[0004] During the drilling process of circuit boards, it was found that when drilling, the entire circuit board will slide and shift under the mechanical impact force of the drill bit due to the high-speed rotation of the drill bit. At this time, it can be fixed with the help of clamping mechanism. However, most clamping mechanisms are of single and limited size and cannot limit the position of many types of circuit boards, which leads to the problem of inconvenience in drilling various types of circuit boards. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art where, during the drilling process of circuit boards, the entire circuit board will slide and shift under the mechanical impact force of the drill bit when the drill bit rotates at high speed. At this time, a clamping mechanism can be used to fix it. However, most clamping mechanisms are of single and limited size and cannot limit the positioning of many types of circuit boards, which leads to the inconvenience of drilling and processing various types of circuit boards.

[0006] To solve the above technical problems, this utility model provides an adjustable fixture for drilling circuit boards, comprising: a base, a support platform fixedly connected to the upper surface of the base, two support frames disposed on the surface of the base, the two support frames being located on both sides of the support platform, an adjustment mechanism disposed on the surface of the support frame, the adjustment mechanism comprising two sliding frames, the inner walls of the two sliding frames being slidably connected to the surface of the support frame, a limit rod fixedly connected to the upper surface of the sliding frame, a limit frame slidably connected to the arc surface of the limit rod, a mating block fixedly connected to the side of the limit frame near the support platform, a fixing block fixedly connected to the side wall surface of the sliding frame corresponding to the position of the mating block, a drive rod fixedly connected to the end of the limit frame away from the mating block, a connecting plate fixedly connected to the surface of the sliding frame, the surface of the connecting plate being threaded through the arc surface of the drive rod, a rotating shaft fixedly connected to the bottom end of the drive rod, a fixing shaft threaded through the lower surface of the sliding frame, and the upper end of the fixing shaft abutting against the lower surface of the support frame.

[0007] The effect achieved by the above components is that during the drilling process of the circuit board, the adjustment mechanism set on the surface of the support frame at the upper end of the base can be used for clamping and limiting. By moving the horizontal position of the sliding frame and rotating the drive rod to drive the relative movement of the docking block and the fixed block, the entire circuit board can be clamped and used better.

[0008] Preferably, friction pads are fixedly connected to the surfaces of the docking block and the fixing block that are close to each other, and the surfaces of the friction pads are provided with anti-slip textures.

[0009] The effect achieved by the above components is that the friction pad helps to support and protect the circuit board, prevents the circuit board from being directly clamped to the fixing block and the mating block, and also increases the friction force, making it easier to fix and limit.

[0010] Preferably, the side wall surface of the support frame is provided with a scale, and the length of the scale is adapted to the length of the support frame.

[0011] The effect achieved by the above components is that, with the help of the combination of the scale and the slider, the spacing between the sliders can be effectively and accurately adjusted.

[0012] Preferably, a through hole is provided on one side surface of the sliding frame corresponding to the scale, and an auxiliary rod is fixedly connected to the inner wall surface of the through hole, the cross-section of the auxiliary rod being arrow-shaped.

[0013] The effect achieved by the above components is that, with the help of the auxiliary rod fixed inside the through hole, it can be used with the scale to facilitate quick movement to the specified interval position.

[0014] Preferably, positioning mechanisms are provided on both sides of the base corresponding to the two ends of the support frame. The positioning mechanism includes a positioning groove, which is formed on the surface of the base and has an inverted "T" shaped cross-section. An inlay block is fixedly connected to the bottom of the arc surface of the support frame. The surface of the inlay block is slidably connected to the inner wall of the positioning groove. A positioning plate is fixedly connected to the base surface corresponding to the position of the support frame. The surface of the positioning plate has a positioning hole, which has a vertical cross-section. The inner wall of the positioning hole is slidably connected to the arc surface of the support frame. An installation shaft is threadedly connected to the arc surface of the support frame.

[0015] The effect achieved by the above components is as follows: In the process of clamping and limiting the circuit board, in order to facilitate the adjustment of the distance between the two support frames and thus facilitate better positioning of circuit boards of the same size, the positioning mechanism is used. The positioning holes on the surface of the positioning plate slide and limit the movement with the arc surface of the support frame, which helps to quickly adjust the distance between the two support frames.

[0016] Preferably, the bottom arc surface of the support frame is fitted with a protective ring, and the upper surface of the protective ring abuts against the lower surface of the mounting shaft.

[0017] The effect achieved by the above components is that the protective ring can better protect the mounting shaft, preventing loosening between the mounting shaft and the positioning plate over a long period of time, which would cause sliding displacement between the support frame and the positioning plate.

[0018] Preferably, the positioning plate is a hard alloy plate, and the length of the positioning plate is adapted to the width of the base.

[0019] The effect achieved by the above components is that the positioning plate made of hard alloy material can be operated for a long time without deformation of the positioning plate after use.

[0020] Compared with related technologies, the adjustable fixture for drilling circuit boards provided by this utility model has the following advantages:

[0021] This utility model provides an adjustable clamp for drilling circuit boards. By operating the adjustment mechanism, the horizontal movement of the sliding frame on the support frame surface and the rotation of the drive rod are achieved, thereby allowing the spacing between multiple sliding frames to be quickly adjusted. At the same time, the matching of the mating block and the fixing block can facilitate the clamping and fixing of the entire circuit board.

[0022] By operating the positioning mechanism, the positions of the two support frames can be adjusted, allowing the distance between them to be adjusted. At the same time, the clamping and fixing between the mounting shaft and the positioning plate helps to fix the position of the support frames, making it easier to operate and use them. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of an adjustable clamp for drilling circuit boards provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the structure of the adjustment mechanism;

[0025] Figure 3 for Figure 1 The diagram shows the structure of the positioning mechanism.

[0026] Figure 4 for Figure 3 A partial structural diagram of the positioning mechanism is shown.

[0027] The following are the labeling elements in the diagram: 1. Base; 2. Support frame; 3. Support platform; 4. Adjustment mechanism; 401. Sliding frame; 402. Fixed shaft; 403. Fixed block; 404. Connecting block; 405. Limiting rod; 406. Limiting frame; 407. Drive rod; 408. Connecting plate; 409. Rotating shaft; 410. Through hole; 411. Auxiliary rod; 412. Scale; 413. Friction pad; 5. Positioning mechanism; 51. Positioning groove; 52. Positioning plate; 53. Positioning hole; 54. Mounting shaft; 55. Protective ring; 56. Inlay block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0030] Please see Figures 1 to 4 The present invention provides an adjustable fixture for drilling circuit boards, comprising: a base 1, a support platform 3 fixedly connected to the upper surface of the base 1, two support frames 2 provided on the surface of the base 1, the two support frames 2 being located on both sides of the support platform 3 respectively, an adjustment mechanism 4 provided on the surface of the support frame 2, and a positioning mechanism 5 provided on both sides of the base 1 corresponding to the two ends of the support frame 2.

[0031] In the embodiments of this utility model, please refer to Figure 2The adjusting mechanism 4 includes two sliding frames 401. The inner walls of the two sliding frames 401 are slidably connected to the surface of the support frame 2. A limit rod 405 is fixedly connected to the upper surface of the sliding frame 401. A limit frame 406 is slidably connected to the arc surface of the limit rod 405. A mating block 404 is fixedly connected to the side of the limit frame 406 near the support platform 3. A fixing block 403 is fixedly connected to the side wall surface of the sliding frame 401 at the position corresponding to the mating block 404. A drive rod 407 is fixedly connected to the end of the limit frame 406 away from the mating block 404. A connecting plate 408 is fixedly connected to the surface of the sliding frame 401. The surface of the connecting plate 408 is threaded through the arc surface of the drive rod 407. A rotating shaft 409 is fixedly connected to the bottom of 07. A fixed shaft 402 is threaded through the lower surface of the slide frame 401. The upper end of the fixed shaft 402 abuts against the lower surface of the support frame 2. Friction pads 413 are fixedly connected to the side surfaces of the mating block 404 and the fixed block 403 that are close to each other. Anti-slip texture is provided on the surface of the friction pad 413. A scale 412 is provided on the side wall surface of the support frame 2. The length of the scale 412 is adapted to the length of the support frame 2. A through hole 410 is provided on the side surface of the slide frame 401 corresponding to the scale 412. An auxiliary rod 411 is fixedly connected to the inner wall surface of the through hole 410. The cross section of the auxiliary rod 411 is arrow-shaped.

[0032] In the embodiments of this utility model, please refer to Figure 3 and Figure 4 The positioning mechanism 5 includes a positioning groove 51, which is formed on the surface of the base 1. The cross-section of the positioning groove 51 is inverted "T" shape. An inlay block 56 is fixedly connected to the bottom of the arc surface of the support frame 2. The surface of the inlay block 56 is slidably connected to the inner wall of the positioning groove 51. A positioning plate 52 is fixedly connected to the surface of the base 1 at the position corresponding to the support frame 2. A positioning hole 53 is formed on the surface of the positioning plate 52. The cross-section of the positioning hole 53 is vertical. The inner wall of the positioning hole 53 is slidably connected to the arc surface of the support frame 2. An installation shaft 54 ​​is threadedly connected to the arc surface of the support frame 2. A protective ring 55 is fitted on the bottom arc surface of the support frame 2. The upper surface of the protective ring 55 abuts against the lower surface of the installation shaft 54. The positioning plate 52 is a hard alloy plate. The length of the positioning plate 52 is adapted to the width of the base 1.

[0033] The working principle of the adjustable clamp for drilling circuit boards provided by this utility model is as follows: During the drilling process of the circuit board, the circuit board needs to be clamped and limited by the adjustment mechanism 4 set on the surface of the support frame 2, and supported and protected by the support platform 3. At this time, the distance between the two support frames 2 is first adjusted according to the width of the circuit board. Then, the mounting shaft 54 ​​on the arc surface of the bottom of the support frame 2 is rotated clockwise to loosen the mounting shaft 54, the protective ring 55 and the positioning plate 52. Then, the two support frames 2 are pulled to slide along the inner wall of the vertical positioning hole 53 opened on the surface of the positioning plate 52. The inlay block 56 fixed at the bottom of the support frame 2 will slide along the positioning groove 51 opened on the surface of the base 1. After reaching the designated position, the mounting shaft 54 ​​is rotated counterclockwise to squeeze and fix the entire mounting shaft 54, the protective ring 55 and the positioning plate 52. Then, the circuit board is placed on the two support frames 2. In the adjustment mechanism 4 located near one side, the drive rod 407 is rotated, causing the upper limit frame 406 to slide along the limit rod 405. At this time, the mating block 404 fixed on one side of the limit frame 406 separates from the fixing block 403 fixed on one side of the slide frame 401. Simultaneously, the fixing shaft 402 on the lower surface of the slide frame 401 is rotated, causing the slide frame 401 to slide along the surface of the support frame 2. The spacing is adjusted using the scale 412. After reaching the designated position, the fixing shaft 402 is rotated to press and fix the entire slide frame 401. Finally, the circuit board to be drilled is placed between the mating block 404 and the fixing block 403. Then, the drive rod 407 is rotated counterclockwise, causing the mating block 404 and the fixing block 403 on one side of the limit frame 406 to engage and press to clamp and fix the entire circuit board, thus protecting the circuit board and preventing positional displacement during drilling.

[0034] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An adjustable fixture for drilling holes in circuit boards, characterized in that, include: A base (1) is provided with a support platform (3) fixedly connected to its upper surface. Two support frames (2) are provided on the surface of the base (1). The two support frames (2) are located on both sides of the support platform (3). An adjustment mechanism (4) is provided on the surface of the support frame (2). The adjustment mechanism (4) includes two sliding frames (401). The inner walls of the two sliding frames (401) are slidably connected to the surface of the support frame (2). A limit rod (405) is fixedly connected to the upper surface of the sliding frame (401). A limit frame (406) is slidably connected to the arc surface of the limit rod (405). The limit frame (406) is fixedly connected to the side of the support platform (3) on the side of the support platform (3). A docking block (404) is connected to the sliding frame (401). A fixing block (403) is fixedly connected to the side wall surface of the sliding frame (401) at the position corresponding to the docking block (404). A driving rod (407) is fixedly connected to the end of the limiting frame (406) away from the docking block (404). A connecting plate (408) is fixedly connected to the surface of the sliding frame (401). The surface of the connecting plate (408) is threaded through the arc surface of the driving rod (407). A rotating shaft (409) is fixedly connected to the bottom end of the driving rod (407). A fixing shaft (402) is threaded through the lower surface of the sliding frame (401). The upper end of the fixing shaft (402) abuts against the lower surface of the support frame (2).

2. The adjustable fixture for drilling circuit boards according to claim 1, characterized in that, Friction pads (413) are fixedly connected to the surfaces of the docking block (404) and the fixing block (403) that are close to each other, and the surface of the friction pads (413) is provided with anti-slip texture.

3. The adjustable fixture for drilling circuit boards according to claim 1, characterized in that, The side wall surface of the support frame (2) is provided with a scale (412), and the length of the scale (412) is adapted to the length of the support frame (2).

4. The adjustable fixture for drilling circuit boards according to claim 3, characterized in that, The sliding frame (401) has a through hole (410) on one side surface corresponding to the scale (412). An auxiliary rod (411) is fixedly connected to the inner wall surface of the through hole (410). The cross section of the auxiliary rod (411) is arrow-shaped.

5. An adjustable fixture for drilling circuit boards according to claim 1, characterized in that, Positioning mechanisms (5) are provided on both sides of the base (1) at positions corresponding to both ends of the support frame (2). The positioning mechanism (5) includes a positioning groove (51). The positioning groove (51) is opened on the surface of the base (1). The cross-section of the positioning groove (51) is inverted "T". An inlay block (56) is fixedly connected to the bottom of the arc surface of the support frame (2). The surface of the inlay block (56) is slidably connected to the inner wall of the positioning groove (51). A positioning plate (52) is fixedly connected to the surface of the base (1) at a position corresponding to the support frame (2). A positioning hole (53) is opened on the surface of the positioning plate (52). The cross-section of the positioning hole (53) is vertical. The inner wall of the positioning hole (53) is slidably connected to the arc surface of the support frame (2). An installation shaft (54) is threadedly connected to the arc surface of the support frame (2).

6. An adjustable fixture for drilling circuit boards according to claim 5, characterized in that, The bottom arc surface of the support frame (2) is fitted with a protective ring (55), and the upper surface of the protective ring (55) abuts against the lower surface of the mounting shaft (54).

7. An adjustable fixture for drilling circuit boards according to claim 5, characterized in that, The positioning plate (52) is a hard alloy plate, and the length of the positioning plate (52) is adapted to the width of the base (1).

Images