A circuit board clamp

Abstract

The utility model relates to the technical field of balance car production, concretely to a circuit board clamp, including support seat, the top of support seat is fixed with support board, one side of the top of support board is fixed with fixed clamp plate, the middle part sliding installation of support board has movable clamp plate, the bottom of support board is equipped with the buffer assembly for buffering and pushing movable clamp plate, through setting buffer assembly and trigger component, utilize the impact force in the clamping process of spring's elastic deformation absorption, convert rigid contact into flexible clamping, protect circuit board, when the clamping force reaches the preset value, trigger lever and locking block cooperate and automatically remove the drive of connecting rod to driving plate, stop clamping action, prevent the electric push rod sustained effort leading to overload, ensure that the clamping force is stable in the safe range, when facing different size circuit board, save the step of manual regulation stroke or replace clamp accessory, improve the clamping efficiency, reduce the operation complexity, avoid the unstable clamping caused by adjustment error.

Description

Technical Field

[0001] This utility model relates to the field of balance scooter manufacturing technology, and in particular to a circuit board clamp. Background Technology

[0002] As the brain of the entire vehicle, the self-balancing scooter controller is responsible for integrating sensor data and using sophisticated algorithms to monitor and control the vehicle's status in real time. In the manufacturing process, its circuit board requires the use of specialized fixtures to ensure welding precision, assembly consistency, and testing stability, thus enabling efficient and reliable mass production.

[0003] A protective fixture for circuit board production disclosed in Chinese Patent Publication No. CN221081638U controls the sliding of a fixed plate by starting a motor to drive a threaded rod to rotate. This, in turn, uses a connecting rod and an H-shaped slider to control the clamping plate to hold the circuit board. However, according to related technologies and existing technologies, traditional fixtures are mostly rigidly driven. During clamping, impact forces or excessive pressure can easily cause circuit board deformation, solder joint detachment, or component damage. Furthermore, it is difficult to accurately control the clamping force; excessive force can damage the circuit board, while insufficient force can cause loosening during processing. In addition, when dealing with circuit boards of different sizes, manual adjustment of the clamping stroke is required, which is cumbersome, inefficient, and prone to instability due to adjustment errors. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a circuit board clamp.

[0005] The objective of this utility model is achieved through the following technical solution: a circuit board clamp, including a support base, a support plate fixedly provided on the top of the support base, a fixed clamping plate fixedly provided on one side of the top of the support plate, a movable clamping plate slidably installed in the middle of the support plate, a buffer assembly for buffering and pushing the movable clamping plate provided at the bottom of the support plate, a control assembly for driving the buffer assembly to move at the bottom of the support base, and a trigger assembly for releasing the transmission of the control assembly when the required clamping force is reached within the buffer assembly.

[0006] Preferably, the buffer assembly includes a connecting plate fixed to the bottom of the movable clamping plate, a plurality of guide posts are fixedly provided on the side of the connecting plate away from the fixed clamping plate, a drive plate is slidably mounted on the guide posts, a first limiting plate is fixedly provided at the end of each guide post away from the connecting plate, and a buffer spring is sleeved on each guide post, the buffer spring being located between the drive plate and the connecting plate.

[0007] Preferably, the control component includes an electric push rod fixed to the bottom of the support base, a control plate is fixedly provided at the output end of the electric push rod, and a connecting rod is fixedly provided on the control plate.

[0008] Preferably, the triggering component includes a locking block that is vertically slidably installed inside the drive plate, a wedge-shaped block is fixedly provided on the side of the locking block near the connecting plate, and a reset spring is fixedly provided on the top of the locking block.

[0009] Preferably, the drive plate has a movable groove for vertical movement of the wedge block at the position corresponding to the wedge block, and the wedge end of the wedge block extends outward from the drive plate.

[0010] Preferably, a trigger rod is fixedly provided on the side of the connecting plate near the driving plate, and the end of the trigger rod is provided with a wedge-shaped surface for pushing the wedge block upward.

[0011] Preferably, the bottom of the locking block is provided with an upper ratchet, and the upper surface of the connecting rod is provided with a lower ratchet. The upper ratchet and the lower ratchet cooperate to form a one-way meshing pair, and the transmission direction is consistent with the clamping direction.

[0012] Preferably, the end of the connecting rod away from the control board passes through the drive plate and is fixedly provided with a second limiting plate.

[0013] Preferably, a positioning plate is fixedly provided at one end of the support plate and the fixed clamping plate, and the positioning plate is arranged perpendicular to the fixed clamping plate.

[0014] Preferably, the movable clamping plate is arranged parallel to the fixed clamping plate, and the bottom of the movable clamping plate penetrates through the support plate.

[0015] Beneficial effects:

[0016] This circuit board clamp, by incorporating a buffer component and a trigger component, utilizes the elastic deformation of a spring to absorb the impact force during clamping, transforming rigid contact into flexible clamping and protecting the circuit board. When the clamping force reaches a preset value, the trigger rod and locking block work together to automatically release the linkage from the drive board, stopping the clamping action and preventing the electric push rod from continuously applying force and causing overload. This ensures that the clamping force remains stable within a safe range. When dealing with circuit boards of different sizes, it eliminates the need for manual adjustment of the stroke or replacement of clamping accessories, improving clamping efficiency, reducing operational complexity, and avoiding clamping instability caused by adjustment errors. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall appearance of the present utility model;

[0020] Figure 3 This is a schematic diagram of the present invention when it is not clamped.

[0021] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the local structure at point A;

[0022] Figure 5 This is a schematic diagram showing the clamping state of this utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the local structure at point B;

[0024] Figure 7 This is a schematic diagram of the locking block of this utility model.

[0025] In the diagram: 1. Support base; 2. Support plate; 3. Fixed clamping plate; 4. Positioning plate; 5. Moving clamping plate; 6. Buffer assembly; 61. Connecting plate; 62. Drive plate; 63. Guide post; 64. First limiting plate; 65. Buffer spring; 7. Control assembly; 71. Electric push rod; 72. Control plate; 73. Connecting rod; 731. Lower ratchet; 732. Second limiting plate; 8. Trigger assembly; 81. Locking block; 811. Upper ratchet; 82. Return spring; 83. Wedge block; 9. Trigger rod. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0028] like Figures 1 to 7 As shown, a circuit board clamp includes a support base 1, a support plate 2 fixedly mounted on the top of the support base 1, a fixed clamping plate 3 fixedly mounted on one side of the top of the support plate 2, a movable clamping plate 5 slidably mounted in the middle of the support plate 2, a buffer assembly 6 for cushioning the movement of the movable clamping plate 5 at the bottom of the support plate 2, a control assembly 7 for driving the movement of the buffer assembly 6 at the bottom of the support base 1, and a trigger assembly 8 for releasing the control assembly 7 when the required clamping force is reached within the buffer assembly 6. The movable clamping plate 5 is arranged parallel to the fixed clamping plate 3, and the bottom of the movable clamping plate 5 extends through... A support plate 2 is inserted, and a positioning plate 4 is fixedly installed at one end of the support plate 2 and the fixed clamping plate 3. The positioning plate 4 is set perpendicular to the fixed clamping plate 3. In use, the circuit board is placed between the moving clamping plate 5 and the fixed clamping plate 3, and the two sides of the circuit board are respectively pressed against the positioning plate 4 and the fixed clamping plate 3. Then, the control component 7 drives the buffer component 6 to move the moving clamping plate 5 towards the fixed clamping plate 3 to achieve clamping. At the same time, the buffer component 6 provides flexible clamping force. When the preset clamping force is reached, the trigger component 8 automatically releases the control component 7 from the control of the buffer component 6 to prevent overload damage to the circuit board.

[0029] like Figure 1 and Figure 4 As shown, the buffer assembly 6 includes a connecting plate 61 fixed to the bottom of the movable clamping plate 5. Multiple guide posts 63 are fixedly provided on the side of the connecting plate 61 away from the fixed clamping plate 3. A drive plate 62 is slidably mounted on the guide posts 63. A first limiting plate 64 is fixedly provided at the end of each guide post 63 away from the connecting plate 61. A buffer spring 65 is sleeved on each guide post 63. The buffer spring 65 is located between the drive plate 62 and the connecting plate 61. When the drive plate 62 is pushed by an external force, the connecting plate 61 and the movable clamping plate 5 are indirectly pushed to move by compressing the buffer spring 65. The elastic deformation of the buffer spring 65 can absorb the impact force during the clamping process and avoid damage to the circuit board caused by rigid contact. The guide posts 63 ensure that the relative movement of the drive plate 62 and the connecting plate 61 is smooth and prevents deviation. The first limiting plate 64 is used to limit the sliding stroke of the drive plate 62 and prevent it from disengaging from the guide post 63.

[0030] like Figure 1 and Figure 3 As shown, the control component 7 includes an electric push rod 71 fixed to the bottom of the support base 1. A control plate 72 is fixedly provided at the output end of the electric push rod 71, and a connecting rod 73 is fixedly provided on the control plate 72. When the electric push rod 71 extends or retracts, the connecting rod 73 is driven to move linearly through the control plate 72, thereby controlling the movement of the drive plate 62 and realizing the movement control of the moving clamp 5.

[0031] like Figures 3 to 7As shown, the trigger assembly 8 includes a locking block 81 vertically slidably mounted inside the drive plate 62. A wedge block 83 is fixedly provided on the side of the locking block 81 near the connecting plate 61. A return spring 82 is fixedly provided on the top of the locking block 81. The drive plate 62 has a movable groove for vertical movement of the wedge block 83 at the position corresponding to the wedge block 83. The wedge-shaped end of the wedge block 83 extends outward from the drive plate 62. A trigger rod 9 is fixedly provided on the side of the connecting plate 61 near the drive plate 62. The end of the trigger rod 9 has a wedge-shaped surface for pushing the wedge block 83 upward. The locking block 81... The bottom of the connecting rod 73 is provided with an upper ratchet 811, and the upper surface of the connecting rod 73 is provided with a lower ratchet 731. The upper ratchet 811 and the lower ratchet 731 cooperate to form a one-way meshing pair, and the transmission direction is consistent with the clamping direction. The end of the connecting rod 73 away from the control plate 72 passes through the drive plate 62 and is fixedly provided with a second limiting plate 732. When clamping, the electric push rod 71 shortens and pushes the connecting rod 73 to move in the clamping direction through the control plate 72. At this time, the upper ratchet 811 at the bottom of the locking block 81 is pushed by the return spring 82 to mesh with the lower ratchet 731 on the connecting rod 73, thereby causing the connecting rod 73 to push the drive plate. The drive plate 62 moves, and the drive plate 62 indirectly pushes the connecting plate 61 and the moving clamping plate 5 to move through the buffer spring 65. When the moving clamping plate 5 contacts the circuit board and reaches the preset clamping force, the buffer spring 65 is compressed to the critical state. At the same time, the wedge-shaped surface of the trigger rod 9 presses against the wedge block 83, forcing the locking block 81 to move upward. The upper ratchet 811 and the lower ratchet 731 disengage. At this time, if the connecting rod 73 continues to move, it will slide relative to the drive plate 62, and the drive plate 62 can no longer be controlled to continue moving. The required clamping force is maintained (fluctuation is negligible) to prevent the clamping force from being too large and damaging the circuit board. When dealing with circuit boards of different sizes, there is no need to control the stroke of the electric push rod 71. When the clamping is released, the electric push rod 71 extends and drives the connecting rod 73 to reset via the control plate 72. During this process, due to the unidirectional transmission between the upper ratchet 811 and the lower ratchet 731, the connecting rod 73 does not drive the drive plate 62 to move in the initial stage and slides relative to the drive plate 62 until the second limit plate 732 contacts the drive plate 62. The connecting rod 73 pulls the drive plate 62 to reset via the second limit plate 732, thereby controlling the moving clamp 5 to reset so that it can be clamped again.

[0032] The work process is as follows:

[0033] S1: As Figure 1 As shown, when in use, place the circuit board between the moving clamp 5 and the fixed clamp 3, and make the two sides of the circuit board stick to the positioning plate 4 and the fixed clamp 3 respectively;

[0034] S2: As Figure 3 and Figure 4As shown, when clamping, the electric push rod 71 shortens and pushes the connecting rod 73 to move in the clamping direction through the control plate 72. At this time, the upper ratchet 811 at the bottom of the locking block 81 is pushed by the return spring 82 to mesh with the lower ratchet 731 on the connecting rod 73, thereby causing the connecting rod 73 to push the drive plate 62 to move. The drive plate 62 then indirectly pushes the connecting plate 61 and the moving clamping plate 5 to move through the buffer spring 65.

[0035] S3: As Figure 5 and Figure 6 As shown, when the moving clamping plate 5 contacts the circuit board and reaches the preset clamping force, the buffer spring 65 is compressed to the critical state, and at the same time, the wedge surface of the trigger rod 9 presses the wedge block 83, forcing the locking block 81 to move upward, and the upper ratchet 811 and the lower ratchet 731 disengage.

[0036] S4: As Figure 6 As shown, if the linkage 73 continues to move, it will slide relative to the drive plate 62, and the drive plate 62 can no longer be controlled to continue moving. Maintain the required clamping force (fluctuation can be ignored) to prevent the clamping force from being too large and damaging the circuit board. At the same time, when dealing with circuit boards of different sizes, there is no need to control the stroke of the electric push rod 71.

[0037] S5: As Figures 3 to 6 As shown, when the clamping is released, the electric push rod 71 extends and drives the connecting rod 73 to reset via the control plate 72. During this process, due to the one-way transmission between the upper ratchet 811 and the lower ratchet 731, the connecting rod 73 does not drive the drive plate 62 to move in the initial stage and slides relative to the drive plate 62 until the second limit plate 732 contacts the drive plate 62. The connecting rod 73 pulls the drive plate 62 to reset via the second limit plate 732, thereby controlling the moving clamp 5 to reset so that it can be clamped again.

[0038] The electric actuator 71 in this application is known in the art, therefore its specific structure and working principle are not described in detail.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A circuit board clamp, characterized in that: The system includes a support base (1), a support plate (2) fixedly mounted on the top of the support base (1), a fixed clamping plate (3) fixedly mounted on one side of the top of the support plate (2), a movable clamping plate (5) slidably mounted in the middle of the support plate (2), a buffer assembly (6) for buffering and pushing the movable clamping plate (5) at the bottom of the support plate (2), a control assembly (7) for driving the buffer assembly (6) to move at the bottom of the support base (1), and a trigger assembly (8) for releasing the transmission of the control assembly (7) when the required clamping force is reached.

2. The circuit board clamp according to claim 1, characterized in that: The buffer assembly (6) includes a connecting plate (61) fixed to the bottom of the moving clamp (5). Multiple guide posts (63) are fixedly provided on the side of the connecting plate (61) away from the fixed clamp (3). A driving plate (62) is slidably installed on the guide posts (63). A first limiting plate (64) is fixedly provided at the end of each guide post (63) away from the connecting plate (61). A buffer spring (65) is sleeved on each guide post (63). The buffer spring (65) is located between the driving plate (62) and the connecting plate (61).

3. A circuit board clamp according to claim 2, characterized in that: The control component (7) includes an electric push rod (71) fixed to the bottom of the support base (1), and a control plate (72) is fixedly provided at the output end of the electric push rod (71). A connecting rod (73) is fixedly provided on the control plate (72).

4. A circuit board clamp according to claim 3, characterized in that: The triggering component (8) includes a locking block (81) that is vertically slidably installed inside the drive plate (62). A wedge block (83) is fixedly provided on the side of the locking block (81) near the connecting plate (61), and a return spring (82) is fixedly provided on the top of the locking block (81).

5. A circuit board clamp according to claim 4, characterized in that: The drive plate (62) has a movable groove for vertical movement of the wedge block (83) at the position corresponding to the wedge block (83), and the wedge end of the wedge block (83) extends to the outside of the drive plate (62).

6. A circuit board clamp according to claim 4, characterized in that: A trigger rod (9) is fixedly provided on the side of the connecting plate (61) near the driving plate (62), and the end of the trigger rod (9) is provided with a wedge-shaped surface for pushing the wedge block (83) upward.

7. A circuit board clamp according to claim 4, characterized in that: The bottom of the locking block (81) is provided with an upper ratchet (811), and the upper surface of the connecting rod (73) is provided with a lower ratchet (731). The upper ratchet (811) and the lower ratchet (731) cooperate to form a one-way meshing pair and the transmission direction is consistent with the clamping direction.

8. A circuit board clamp according to claim 4, characterized in that: The end of the connecting rod (73) away from the control plate (72) passes through the drive plate (62) and is fixedly provided with a second limiting plate (732).

9. A circuit board clamp according to claim 1, characterized in that: The support plate (2) is fixedly provided with a positioning plate (4) at one end of the fixed clamping plate (3), and the positioning plate (4) is perpendicular to the fixed clamping plate (3).

10. A circuit board clamp according to claim 1, characterized in that: The movable clamping plate (5) is arranged parallel to the fixed clamping plate (3), and the bottom of the movable clamping plate (5) penetrates the support plate (2).

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