Adjustable clamp

Abstract

The utility model relates to the technical field of clamps, in particular to an adjustable clamp which comprises a clamp body, high-universality mechanisms are arranged in an adjusting frame body and on the surface of a fixing plate, and positioning blocking mechanisms are arranged on the surfaces of the clamp body and a circuit board body. And abutting protection mechanisms are arranged on the surfaces of the clamping piece and the circuit board body. According to the utility model, when the clamp is used, the distance between the adjusting frame bodies can be adjusted according to the size of a circuit board body, so that the universality of the clamp is higher when the clamp is used, and the problem that the circuit board body cannot be positioned when being placed in the use process of the clamp is solved; according to the clamp, the placing position of the circuit board body can be positioned when the clamp is used, and the phenomenon that the surface of the circuit board body is not accurately processed due to displacement of the circuit board body on the surface of the supporting frame plate in the using process of the clamp is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to an adjustable jig. Background Technique

[0002] The fixing jig for the circuit board to be measured is mainly used for the production, assembly, maintenance, testing, automatic testing and fault diagnosis of circuit boards. With the continuous development of electronics and microelectronics technologies, the types, sizes and shapes of electronic circuit boards are also developing rapidly and emerging in an endless stream. Especially in the situations such as the production, maintenance, testing, automatic testing and fault diagnosis of complex circuit boards, it is necessary to fix various PCB boards. Now an adjustable jig is needed.

[0003] The existing jigs still have some disadvantages to a certain extent. First of all, since the sizes of circuit boards are different, the universality requirements for jigs are relatively high. When the existing jigs are used, it is usually inconvenient to adjust the distance between the adjusting frames, which reduces the universality of the jigs during use. Secondly, when the jig is used, it is necessary to position and block the circuit board body. The existing jigs usually do not have the function of positioning and blocking the circuit board body during use, which easily leads to the problem that the circuit board body cannot be positioned when placed during the use of the jig, so that the placement position of the circuit board body cannot be positioned when the jig is used. Thirdly, when the jig is used, it is necessary to tightly press and protect the surface of the circuit board body. The existing jigs usually cannot tightly press and protect the surface of the circuit board body during use, which reduces the effect of tightly clamping the circuit board body when the jig is used, and easily leads to the phenomenon that the circuit board body is displaced on the surface of the support plate during the use of the jig, resulting in inaccurate processing of the surface of the circuit board body. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable jig to solve the problems raised in the above background technique that it is inconvenient to adjust the distance between the adjusting frames when the jig is used, it does not have the function of positioning and blocking the circuit board body, and it cannot tightly press and protect the surface of the circuit board body.

[0005] To achieve the above object, the present utility model provides the following technical solution: An adjustable fixture, comprising a fixture body, on the surfaces of both sides of the fixture body are installed fixed plates, on the surfaces of the fixture body are provided adjusting frame bodies, the adjusting frame bodies are slidably engaged with the surfaces of the fixture body and the fixed plates, on the surfaces of the adjusting frame bodies are provided rotating columns, on the surfaces of the rotating columns are provided clamping members, on the surfaces of the adjusting frame bodies are installed support plates, on the support plates are placed circuit board bodies, on the surfaces of the adjusting frame bodies are installed control buttons, inside the adjusting frame bodies and on the surfaces of the fixed plates are provided highly versatile mechanisms, the highly versatile mechanisms internally include adjusting screw cylinders, guide blocks, rotating motors, guide chutes and screw rod bodies, on the surfaces of the fixture body and the circuit board bodies are provided positioning and blocking mechanisms, the positioning and blocking mechanisms internally include positioning baffles, protective pads and positioning and blocking parts, on the surfaces of the clamping members and the circuit board bodies are provided pressing and protecting mechanisms, the pressing and protecting mechanisms internally include fixing frames, sliders and pressing and protecting parts.

[0006] Preferably, the rotating column is rotatably engaged with the surface of the adjusting frame body, the clamping member is rotatably engaged with the surface of the rotating column, and the clamping member and the rotating column are detachably connected.

[0007] Preferably, a rotating motor is installed on the surface of the fixed plate, the input end of the rotating motor is electrically connected to the output end of the control button, the output end of the rotating motor is installed with a rotating shaft through a coupling, inside the fixed plate is provided a screw rod body, the screw rod body is rotatably engaged with the inner wall of the fixed plate, and the surface of the screw rod body is fixed to the surface of the rotating shaft.

[0008] Preferably, an adjusting screw cylinder is threadedly sleeved on the surface of the screw rod body, the adjusting screw cylinder is rotatably engaged with the surface of the screw rod body, the surface of the adjusting screw cylinder is fixed to the surface at the bottom position of the adjusting frame body, guide chutes are opened on the inner walls of the fixed plates, guide blocks are installed on the surfaces at the bottom positions of the adjusting frame bodies, and the guide blocks are slidably engaged with the surfaces of the guide chutes.

[0009] Preferably, the positioning and blocking part is arranged on the surfaces of the fixture body and the circuit board body, the positioning and blocking part is composed of an anti - detachment clip and a column body, on the surfaces of the fixture body are provided positioning baffles for positioning and blocking the circuit board body, on the surfaces of the positioning baffles are installed protective pads for protecting the surface of the circuit board body, and the surface of the protective pad is in contact with the surface of the circuit board body.

[0010] Preferably, clamping posts are installed on the surfaces of the fixture body. One end of each clamping post penetrates through the positioning baffle and extends above the positioning baffle. Anti - detachment clamping members are installed on the surfaces on both sides of each clamping post, and the anti - detachment clamping members are in clamping fit with the inner wall of the positioning baffle.

[0011] Preferably, the pressing and protecting part is arranged on the surfaces of the clamping member and the circuit board body. The pressing and protecting part is composed of a pressing spring, a groove body and a pressing plate. A fixed frame is installed on the inner wall of the clamping member. A pressing plate for pressing and preventing displacement of the surface of the circuit board body is arranged below the fixed frame. One end of the pressing plate extends into the interior of the fixed frame, and groove bodies are formed on the inner walls of the fixed frame.

[0012] Preferably, sliding blocks are installed on the surfaces of the pressing plates. The sliding blocks are in sliding fit with the surfaces of the groove bodies. The surfaces at the bottom positions of the pressing plates are in contact with the surface of the circuit board body. Pressing springs are installed on the inner walls of the fixed frames. One end of each pressing spring is fixed to the surface of the corresponding pressing plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: This adjustable fixture not only enables the distance between the adjusting frames to be adjusted according to the size of the circuit board body when the fixture is in use, making the fixture more versatile in use, avoiding the problem that the circuit board body cannot be positioned during placement when the fixture is in use, enabling the fixture to position the placement position of the circuit board body when in use, but also making the pressing and clamping effect on the circuit board body better when the fixture is in use, avoiding the phenomenon that the circuit board body is displaced on the surface of the support plate during the use of the fixture, resulting in inaccurate processing of the surface of the circuit board body.

[0014] 1. By providing a high - versatility mechanism, the rotation motor on the surface of the fixed plate is controlled to work. Under the action of the rotation motor, the lead screw body rotates inside the fixed plate. When the lead screw body rotates, the adjusting frame moves on the surface of the fixed plate under the thread fit of the lead screw body and the adjusting screw barrel. At this time, the adjusting frame drives the guiding block to slide inside the guiding chute. Under the combined action of the guiding block and the guiding chute, the adjusting frame is guided, so that the distance between the adjusting frames can be adjusted to be suitable for circuit board bodies of different sizes, realizing the function of the fixture to adjust the distance between the adjusting frames. Thus, the distance between the adjusting frames can be adjusted according to the size of the circuit board body when the fixture is in use, making the fixture more versatile in use.

[0015] 2. By providing a positioning and blocking mechanism, the user first places the positioning baffle on the surface of the fixture body as needed, so that the positioning baffle drives the protective pad to move into contact with the surface of the circuit board body. At this time, the column body is clamped to the surface of the positioning baffle, and under the action of the column body, the placement position of the positioning baffle is positioned. At this time, the column body drives the anti-detachment part to be clamped to the inner wall of the positioning baffle. Under the action of the positioning baffle, the circuit board body is blocked and positioned, and under the action of the protective pad, the surface of the circuit board body is protected, realizing the function of the fixture to position and block the circuit board body, thus avoiding the problem that the circuit board body cannot be positioned during placement during the use of the fixture, and enabling the fixture to position the placement position of the circuit board body during use;

[0016] 3. By providing a pressing and protecting mechanism, under the elastic force of the pressing spring inside the fixed frame, the pressing plate is driven to move, so that the pressing plate slides inside the groove body. Under the action of the groove body, the pressing plate is guided. At this time, the surface of the pressing plate moves into contact with the surface of the circuit board body. Under the combined action of the pressing spring and the pressing plate, the circuit board body is pressed and fixed on the surfaces of the adjusting frame body and the supporting plate, avoiding the phenomenon of displacement of the circuit board body during processing, realizing the function of the fixture to press and protect the surface of the circuit board body, thus making the pressing and clamping effect of the fixture on the circuit board body better during use, and avoiding the phenomenon that the circuit board body is displaced on the surface of the supporting plate during the use of the fixture, resulting in inaccurate processing of the surface of the circuit board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 is a top view sectional structure schematic diagram of the present utility model;

[0019] Figure 3 is a side view sectional structure schematic diagram of the present utility model;

[0020] Figure 4 is of the present utility model Figure 2 amplified structure schematic diagram of the high versatility mechanism;

[0021] Figure 5 is of the present utility model Figure 2 amplified structure schematic diagram of the positioning and blocking mechanism;

[0022] Figure 6 is of the present utility model Figure 3 amplified structure schematic diagram of the pressing and protecting mechanism.

[0023] In the figure: 1. Fixture body; 101. Adjusting frame body; 102. Clamping piece; 103. Fixed plate; 104. Circuit board body; 105. Rotating column; 106. Support frame plate; 107. Control button; 2. High universality mechanism; 201. Adjusting screw barrel; 202. Guide block; 203. Rotating motor; 204. Guide chute; 205. Screw rod body; 3. Positioning and blocking mechanism; 301. Positioning baffle; 302. Protective pad; 303. Positioning and blocking part; 3031. Anti - detachment card part; 3032. Column body of the card; 4. Pressing and protecting mechanism; 401. Fixed frame; 402. Slide block; 403. Pressing and protecting part; 4031. Pressing spring; 4032. Groove body; 4033. Pressing plate. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0025] The structure of an adjustable fixture provided by the present invention is as Figure 1 and Figure 2 shown, including a fixture body 1. Fixed plates 103 are installed on the surfaces on both sides of the fixture body 1. Adjusting frame bodies 101 are arranged on the surfaces of the fixture body 1. The adjusting frame bodies 101 are in sliding fit with the surfaces of the fixture body 1 and the fixed plates 103. Rotating columns 105 are arranged on the surfaces of the adjusting frame bodies 101. The rotating columns 105 are in rotational fit with the surfaces of the adjusting frame bodies 101. Clamping pieces 102 are arranged on the surfaces of the rotating columns 105. The clamping pieces 102 are in rotational fit with the surfaces of the rotating columns 105. The clamping pieces 102 and the rotating columns 105 are detachably connected. Support frame plates 106 are installed on the surfaces of the adjusting frame bodies 101. A circuit board body 104 is placed on the surfaces of the support frame plates 106. Control buttons 107 are installed on the surfaces of the adjusting frame bodies 101. The model of the control button 107 can be selected from the LA series.

[0026] Furthermore, as Figure 2 and Figure 4As shown, high - versatility mechanisms 2 are provided on the inner side of the adjusting frame body 101 and the surface of the fixing plate 103. The inside of the high - versatility mechanism 2 includes an adjusting screw cylinder 201, a guiding block 202, a rotating motor 203, a guiding chute 204 and a lead screw body 205. A rotating motor 203 is installed on the surface of the fixing plate 103. The model of this rotating motor 203 can be selected from the JO series. The input end of the rotating motor 203 is electrically connected to the output end of the control button 107. The output end of the rotating motor 203 is installed with a rotating shaft through a coupling. A lead screw body 205 is arranged inside the fixing plate 103. The lead screw body 205 is rotationally matched with the inner wall of the fixing plate 103. The surface of the lead screw body 205 is fixed to the surface of the rotating shaft. An adjusting screw cylinder 201 is sleeved on the surface of the lead screw body 205 in a threaded manner. The adjusting screw cylinder 201 is rotationally matched with the surface of the lead screw body 205. The surface of the adjusting screw cylinder 201 is fixed to the surface at the bottom of the adjusting frame body 101. Guiding chutes 204 are opened on the inner walls of the fixing plate 103. Guiding blocks 202 are installed on the surfaces at the bottom of the adjusting frame body 101. The guiding blocks 202 are slidably matched with the surfaces of the guiding chutes 204.

[0027] During implementation, the rotating motor 203 on the surface of the fixing plate 103 is controlled to work. Under the action of the rotating motor 203, the lead screw body 205 rotates on the inner wall of the fixing plate 103. When the lead screw body 205 rotates, under the threaded cooperation of the lead screw body 205 and the adjusting screw cylinder 201, the adjusting frame body 101 moves on the surface of the fixing plate 103. At this time, the adjusting frame body 101 drives the guiding block 202 to slide inside the guiding chute 204. Under the combined action of the guiding block 202 and the guiding chute 204, the adjusting frame body 101 is guided, so that the distance between the adjusting frame bodies 101 can be adjusted to be suitable for circuit board bodies 104 of different sizes, thereby realizing the function of the fixture to adjust the distance between the adjusting frame bodies 101.

[0028] Further, as Figure 2 and Figure 5As shown in the figure, positioning and blocking mechanisms 3 are provided on the surfaces of the fixture body 1 and the circuit board body 104. The inside of the positioning and blocking mechanism 3 includes a positioning baffle 301, a protective pad 302, and a positioning and blocking portion 303. The positioning and blocking portion 303 is provided on the surfaces of the fixture body 1 and the circuit board body 104. The positioning and blocking portion 303 is composed of an anti-disengagement clip 3031 and a column body 3032. Positioning baffles 301 for positioning and blocking the circuit board body 104 are provided on the surfaces of the fixture body 1. Protective pads 302 for protecting the surface of the circuit board body 104 are installed on the surfaces of the positioning baffles 301. The surface of the protective pad 302 is in contact with the surface of the circuit board body 104. Column bodies 3032 are installed on the surfaces of the fixture body 1. One end of the column body 3032 penetrates through the positioning baffle 301 and extends above the positioning baffle 301. Anti-disengagement clips 3031 are installed on the surfaces on both sides of the column body 3032. The anti-disengagement clips 3031 are engaged with the inner wall of the positioning baffle 301.

[0029] During implementation, the user first places the positioning baffle 301 on the surface of the fixture body 1 as needed, so that the positioning baffle 301 drives the protective pad 302 to move into contact with the surface of the circuit board body 104. At this time, the column body 3032 is stuck to the surface of the positioning baffle 301. Under the action of the column body 3032, the placement position of the positioning baffle 301 is positioned. At this time, the column body 3032 drives the anti-disengagement clip 3031 to be stuck to the inner wall of the positioning baffle 301. Under the action of the positioning baffle 301, the circuit board body 104 is blocked and positioned. Under the action of the protective pad 302, the surface of the circuit board body 104 is protected, so as to realize the function of the fixture for positioning and blocking the circuit board body 104.

[0030] Furthermore, as Figure 3 and Figure 6As shown, tightening and protecting mechanisms 4 are provided on the surfaces of the clamping member 102 and the circuit board body 104. The interior of the tightening and protecting mechanism 4 includes a fixed frame 401, a slider 402, and a tightening and protecting portion 403. The tightening and protecting portion 403 is provided on the surfaces of the clamping member 102 and the circuit board body 104. The tightening and protecting portion 403 is composed of a tightening spring 4031, a groove body 4032, and a tightening plate 4033. A fixed frame 401 is installed on the inner wall of the clamping member 102. Below the fixed frame 401, there is a tightening plate 4033 for tightly pressing and preventing displacement of the surface of the circuit board body 104. One end of the tightening plate 4033 extends into the interior of the fixed frame 401. Groove bodies 4032 are formed on the inner walls of the fixed frame 401. Sliders 402 are installed on the surfaces of the tightening plates 4033. The sliders 402 are in sliding fit with the surfaces of the groove bodies 4032. The surface at the bottom position of the tightening plate 4033 is in contact with the surface of the circuit board body 104. Tightening springs 4031 are installed on the inner walls of the fixed frame 401. One end of each tightening spring 4031 is fixed to the surface of the tightening plate 4033.

[0031] During implementation, under the elastic force of the tightening spring 4031 inside the fixed frame 401, the tightening plate 4033 is driven to move, causing the tightening plate 4033 to slide inside the groove body 4032. Under the action of the groove body 4032, the tightening plate 4033 is guided. At this time, the surface of the tightening plate 4033 moves to contact the surface of the circuit board body 104. Under the combined action of the tightening spring 4031 and the tightening plate 4033, the circuit board body 104 is tightly pressed and fixed on the surfaces of the adjusting frame body 101 and the support plate 106, preventing the circuit board body 104 from displacing during the processing. When the user does not need to use the clamping member 102, the user pulls up the clamping member 102 and removes the clamping member 102 from the surface of the rotating column 105 to achieve the function of the fixture for tightly pressing and protecting the surface of the circuit board body 104.

[0032] Working principle: When in use, first place the fixture body 1 at a specified position. The user adjusts the distance between the adjusting frames 101 according to the size of the circuit board body 104. The user operates the control button 107, so that the control button 107 controls the rotation motor 203 on the surface of the fixed plate 103 to work. Under the action of the rotation motor 203, the lead screw body 205 rotates on the inner wall of the fixed plate 103. When the lead screw body 205 rotates, under the thread fit of the lead screw body 205 and the adjusting screw barrel 201, the adjusting frame 101 moves on the surface of the fixed plate 103. At this time, the adjusting frame 101 drives the guide block 202 to slide inside the guide chute 204. Under the combined action of the guide block 202 and the guide chute 204, the adjusting frame 101 is guided, so that the distance between the adjusting frames 101 can be adjusted to be suitable for circuit board bodies 104 of different sizes, to realize the function of the fixture to adjust the distance between the adjusting frames 101, so that when the fixture is used, the distance between the adjusting frames 101 can be adjusted according to the size of the circuit board body 104, making the fixture more versatile when in use.

[0033] Subsequently, the user places the circuit board body 104 between adjacent adjusting frames 101. Under the action of the support plate 106, the circuit board body 104 is supported. The user first places the positioning baffle 301 on the surface of the fixture body 1 as needed, so that the positioning baffle 301 drives the protective pad 302 to move into contact with the surface of the circuit board body 104. At this time, the column body 3032 is clamped to the surface of the positioning baffle 301. Under the action of the column body 3032, the placement position of the positioning baffle 301 is positioned. At this time, the column body 3032 drives the anti-disengagement clip 3031 to be clamped to the inner wall of the positioning baffle 301. Under the action of the positioning baffle 301, the circuit board body 104 is blocked and positioned. Under the action of the protective pad 302, the surface of the circuit board body 104 is protected, to realize the function of the fixture to position and block the circuit board body 104, thus avoiding the problem that the circuit board body 104 cannot be positioned when placed during the use of the fixture, so that the placement position of the circuit board body 104 can be positioned when the fixture is in use.

[0034] Subsequently, the user rotates the clamping member 102 on the surface of the adjusting frame 101, causing the clamping member 102 to rotate on the surface of the rotating column 105. At this time, under the elastic force of the pressing spring 4031 inside the fixed frame 401, the pressing plate 4033 is driven to move, causing the pressing plate 4033 to slide inside the groove body 4032. The groove body 4032 guides the pressing plate 4033. At this time, the surface of the pressing plate 4033 moves to contact the surface of the circuit board body 104. Under the combined action of the pressing spring 4031 and the pressing plate 4033, the circuit board body 104 is pressed and fixed on the surfaces of the adjusting frame 101 and the support plate 106, avoiding the phenomenon of displacement of the circuit board body 104 during the processing. When the user does not need to use the clamping member 102, the user pulls up the clamping member 102 and removes the clamping member 102 from the surface of the rotating column 105 to achieve the function of the fixture pressing and protecting the surface of the circuit board body 104, so that the pressing and clamping effect of the fixture on the circuit board body 104 during use is better, avoiding the phenomenon that the circuit board body 104 is displaced on the surface of the support plate 106 during the use of the fixture, resulting in inaccurate processing of the surface of the circuit board body 104, and finally completing the use of the fixture.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An adjustable clamp, comprising a clamp body (1), characterized in that: The surfaces of both sides of the clamp body (1) are both installed with fixing plates (103); the surfaces of the clamp body (1) are both provided with adjustment frames (101); the adjustment frames (101) and the surfaces of the clamp body (1) and the fixing plates (103) are slidably matched with each other; the surfaces of the adjustment frames (101) are both provided with rotating columns (105); the surfaces of the rotating columns (105) are provided with clamping members (102); the surfaces of the adjustment frames (101) are installed with supporting frames (106); the surfaces of the supporting frames (106) are provided with circuit board bodies (104); the surfaces of the adjustment frames (101) are installed with control buttons (107); the interior of the adjustment frames (101) is connected to the surfaces of the fixing plates (103); The surfaces of the clamp body (102) and the circuit board body (104) are both provided with a high-versatility mechanism (2), the interior of which includes an adjusting screw (201), a guide block (202), a rotating motor (203), a guide slide groove (204) and a lead screw body (205); the surfaces of the clamp body (1) and the circuit board body (104) are both provided with a positioning and blocking mechanism (3), the interior of which includes a positioning baffle (301), a protective pad (302) and a positioning and blocking portion (303); the surfaces of the clamping member (102) and the circuit board body (104) are both provided with a tight protection mechanism (4), the interior of which includes a fixing frame (401), a slider (402) and a tight protection portion (403).

2. An adjustable clamp according to claim 1, characterized in that: The rotating column (105) and the surface of the adjusting frame (101) are rotatably matched with each other, the clamping member (102) and the surface of the rotating column (105) are rotatably matched with each other, and the clamping member (102) and the rotating column (105) are detachably connected.

3. The adjustable clamp according to claim 1, characterized in that: A rotating motor (203) is installed on the surface of the fixed plate (103), the input end of the rotating motor (203) is electrically connected to the output end of the control button (107), the output end of the rotating motor (203) is installed with a rotating shaft via a coupling, a lead screw body (205) is arranged inside the fixed plate (103), the lead screw body (205) and the inner wall of the fixed plate (103) are rotatably matched with each other, and the surface of the lead screw body (205) is fixed to the surface of the rotating shaft.

4. An adjustable clamp according to claim 3, characterized in that: The surface of the lead screw body (205) is threadedly sleeved with an adjusting screw barrel (201), and the adjusting screw barrel (201) and the surface of the lead screw body (205) are rotatably matched with each other, and the surface of the adjusting screw barrel (201) is fixed to the surface at the bottom position of the adjusting frame (101), and the inner wall of the fixing plate (103) is provided with a guide groove (204), and the surface at the bottom position of the adjusting frame (101) is installed with a guide block (202), and the surface of the guide block (202) and the surface of the guide groove (204) are slidably matched with each other.

5. The adjustable clamp according to claim 1, characterized in that: The positioning blocking portion (303) is arranged on the surface of the clamp body (1) and the circuit board body (104); the positioning blocking portion (303) is composed of an anti-dropping clamp (3031) and a clamp column body (3032); the surface of the clamp body (1) is provided with a positioning baffle (301) for positioning and blocking the circuit board body (104); the surface of the positioning baffle (301) is installed with a protective pad (302) for protecting the surface of the circuit board body (104); the surface of the protective pad (302) is in contact with the surface of the circuit board body (104).

6. The adjustable clamp according to claim 1, characterized in that: A clamping column body (3032) is installed on the surface of the clamp body (1), one end of the clamping column body (3032) passes through the positioning baffle (301) and extends to the top of the positioning baffle (301), and anti-slip clamps (3031) are installed on the surfaces of both sides of the clamping column body (3032), and the anti-slip clamps (3031) are mutually engaged with the inner wall of the positioning baffle (301).

7. The adjustable clamp according to claim 1, characterized in that: The pressing and protecting part (403) is arranged on the surface of the clamping member (102) and the circuit board body (104), and the pressing and protecting part (403) is composed of a pressing spring (4031), a groove body (4032) and a pressing plate (4033). A fixing frame (401) is installed on the inner wall of the clamping member (102), and a pressing plate (4033) is arranged below the fixing frame (401) for pressing against the surface of the circuit board body (104) to prevent displacement. One end of the pressing plate (4033) extends to the inside of the fixing frame (401), and the inner wall of the fixing frame (401) is provided with a groove body (4032).

8. The adjustable clamp according to claim 7, characterized in that: The surface of the clamping plate (4033) is installed with a slider (402), and the slider (402) and the surface of the groove body (4032) are slidably matched with each other. The surface at the bottom position of the clamping plate (4033) is in contact with the surface of the circuit board body (104). The inner wall of the fixing frame (401) is installed with a clamping spring (4031), and one end of the clamping spring (4031) is fixed to the surface of the clamping plate (4033).

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