Circuit board clamp capable of clamping at front end and circuit board clamping device

Abstract

The utility model discloses a front-end clamping circuit board clamp and a clamping device. The front-end clamping circuit board clamp comprises a first clamping arm and a second clamping arm which are matched with each other and used for clamping a circuit board, a first clamping block part is arranged on the inner side of the first clamping arm, a second clamping block part is arranged on the inner side of the second clamping arm, a clamping inclined plane is arranged on the second clamping block part, and the first clamping block part and the second clamping block part are clamped in the direction from the front end of the second clamping arm to the rear end of the second clamping arm. And the clamping inclined surface gradually gets away from the circuit board, so that the contact position of the second clamping block part and the circuit board is located at the front end of the clamp. The circuit board clamp solves the problem that when a circuit board clamp adopting plane clamping is used for clamping different circuit boards, clamping points are possibly located at the rear end of the clamp, and therefore the circuit boards are disengaged.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board manufacturing, in particular to a circuit board clamp with a front end clamped. Background Art

[0002] In the field of electronic manufacturing, the clamping and fixing of circuit boards is a key link in the production process. Traditional circuit board fixtures usually adopt a flat clamping design, which has limitations when facing circuit boards of different thicknesses and dimensional tolerances. For thicker circuit boards, the flat clamping circuit board fixture may not be able to close for clamping, resulting in the clamping point at the rear end of the fixture, causing the circuit board to be unclamped. At the same time, when facing circuit boards with dimensional tolerances, the position of the clamping point of the flat clamping design is difficult to guarantee. If the clamping point is at the rear end, it is easy to cause a gap, causing the circuit board to be unclamped, affecting production efficiency and product quality. Utility Model Content

[0003] The utility model provides a front-end clamping circuit board fixture, which solves the problem that a plane-clamping circuit board fixture may cause the clamping point to be at the rear end of the fixture when clamping different circuit boards, thereby causing the circuit board to be unclamped.

[0004] The utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides a front-end clamping circuit board clamp, comprising a first clamping arm and a second clamping arm that cooperate with each other to clamp the circuit board, a first clamping block portion is arranged on the inner side of the first clamping arm, a second clamping block portion is arranged on the inner side of the second clamping arm, and a clamping inclined surface is arranged on the second clamping block portion. In the direction from the front end to the rear end of the second clamping arm, the clamping inclined surface gradually moves away from the circuit board, so that the contact position between the second clamping block portion and the circuit board is located at the front end of the clamp.

[0006] As in the above-mentioned front-end clamping circuit board clamp, the first clamping block part is provided with a clamping plane, the first clamping block part is a plane clamping block, the second clamping block part is a wedge block, and the thick end of the wedge block is located at the front end of the second clamping arm and faces the circuit board.

[0007] In the above-mentioned front-end clamping circuit board fixture, the vertical projection of the wedge block along the clamping direction coincides with the planar clamping block.

[0008] As in the above-mentioned front-end clamping circuit board clamp, the first clamping arm and the first clamping block part are detachably connected, or the second clamping arm and the second clamping block part are detachably connected, or the first clamping arm and the first clamping block part are detachably connected and the second clamping arm and the second clamping block part are detachably connected.

[0009] As in the above-mentioned front-end clamping circuit board fixture, the first clamping block part and / or the second clamping block part is provided with a medicine groove extending along the circuit board insertion direction.

[0010] As in the above-mentioned front-end clamping circuit board clamp, the second clamping arm is a forked structure, and each fork is provided with the second clamping block portion.

[0011] In the above-mentioned front-end clamping circuit board clamp, the first clamping arm is a forked structure, and each fork is provided with a first clamping block portion that cooperates with the second clamping block portion.

[0012] As in the above-mentioned front-end clamping circuit board clamp, the rear end of the first clamping arm is provided with a connecting bracket, the connecting bracket is rotatably connected to a fixed shaft, and the fixed shaft is connected to the second clamping arm.

[0013] A circuit board clamping device comprises two connecting rods, a first frame plate, a second frame plate and two elastic telescopic mechanisms, wherein the two connecting rods are arranged parallel to each other, the first frame plate and the second frame plate are arranged parallel to each other, and the first frame plate and the second frame plate are both provided with a plurality of circuit board clamps with front ends clamped as described above; one end of the two connecting rods is fixedly connected to the second frame plate, the other ends of the two connecting rods are respectively connected to one end of the two elastic telescopic mechanisms, and the other ends of the two elastic telescopic mechanisms are connected to the first frame plate; the elastic telescopic mechanisms can be elastically telescopic along the axial direction of the connecting rods.

[0014] The circuit board clamping device as described above further includes a limiting mechanism, wherein the limiting mechanism is used to limit the moving distance of the first frame plate relative to the connecting rod in the axial direction of the connecting rod.

[0015] The utility model has at least the following beneficial effects:

[0016] 1. The clamping point of the fixture is designed with an inclined surface. For thicker circuit boards or circuit boards with dimensional tolerances, it can ensure that the clamping point is still at the front end after clamping to prevent the clamp from coming off.

[0017] 2. The area of ​​contact between the fixture and the circuit board is reduced. This design may help reduce the risk of damage to the circuit board surface, especially when handling sensitive or delicate circuit boards.

[0018] 3. The detachable connection allows for quick replacement of worn or damaged first or second clamping blocks, reducing the time and labor intensity of maintenance and repair. Since specific parts of the clamp can be replaced individually without having to replace the entire clamp, this helps reduce long-term operating costs.

[0019] 4. The setting of the chemical tank allows the fixture to be used for chemical treatment of circuit boards, such as cleaning or etching, which increases the functionality of the fixture.

[0020] 5. Through the quick adjustment function of the elastic telescopic mechanism, the device can be quickly adjusted to adapt to circuit boards of different sizes, reducing the adjustment time in production.

[0021] 6. The circuit board clamping device can be used not only to clamp ordinary circuit boards, but also to clamp flexible circuit boards.

[0022] 7. The clamping device is equipped with a plurality of the above-mentioned front-end clamping circuit board fixtures, which can be compatible with large circuit boards or small circuit boards.

[0023] 8. The circuit board clamping device is provided with two types of clamps, one with a forked structure and the other with a forked structure, to meet different purposes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of an embodiment of the circuit board clamp of the utility model;

[0025] Figure 2 This is a three-dimensional diagram of an embodiment of the circuit board clamp of the utility model;

[0026] Figure 3 An exploded view of an embodiment of the circuit board clamp of the utility model;

[0027] Figure 4 This is a three-dimensional diagram of another embodiment of the circuit board clamp of the utility model;

[0028] Figure 5 It is an exploded view of another embodiment of the circuit board clamp of the utility model;

[0029] Figure 6 It is a front view of another embodiment of the circuit board clamp of the utility model;

[0030] Figure 7 It is a structural schematic diagram of the wedge block of the utility model;

[0031] Figure 8 It is a side view of the wedge block of the utility model;

[0032] Fig. 9 This is a schematic structural diagram of a circuit board clamping device of the utility model;

[0033] Fig.10 for Fig. 9 A is an enlarged schematic diagram of the marker in the middle. DETAILED DESCRIPTION

[0034] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0035] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0037] An embodiment of the utility model provides a front-end clamping circuit board clamp, comprising a first clamping arm 1 and a second clamping arm 2 that cooperate with each other to clamp the circuit board, a first clamping block portion 102 is arranged on the inner side of the first clamping arm 1, a second clamping block portion 201 is arranged on the inner side of the second clamping arm 2, and a clamping inclined surface 202 is arranged on the second clamping block portion 201. In the direction from the front end of the second clamping arm 2 to the rear end, the clamping inclined surface 202 gradually moves away from the circuit board, so that the contact position between the second clamping block portion 201 and the circuit board is located at the front end of the clamp.

[0038] By arranging the clamping block part on the inner side of the first clamping arm 1 and the second clamping arm 2, it is ensured that the clamping point of the circuit board is located at the front end of the clamp, which helps to improve the positioning accuracy of the circuit board during processing. The design of the clamping slope 202 of the second clamping block part 201 ensures that the clamping point is always at the front end of the clamp, and the clamp can adapt to circuit boards of different thicknesses. Since the clamping slope 202 starts from the front end of the second clamping arm 2 and gradually moves away from the circuit board, this design reduces the risk of damage to the surface of the circuit board, especially when clamping thinner or sensitive circuit boards.

[0039] In some embodiments, a clamping plane 101 is provided on the first clamping block portion 102 , the first clamping block portion 102 is a plane clamping block, and the second clamping block portion 201 is a wedge block, the thick end of the wedge block is located at the front end of the second clamping arm 2 and faces the circuit board.

[0040] The planar clamp can provide a flat and stable contact surface for the circuit board, which is essential for maintaining the stability of the circuit board during processing. The smooth surface of the planar clamp can reduce friction and damage to the surface of the circuit board, and is particularly suitable for circuit boards with sensitive components or coatings on the surface. At the same time, the planar clamp can be fixed on the first clamp arm 1 as a part of the first clamp arm 1. The wedge can effectively transfer the applied force to the circuit board and provide the required clamping force. Wedges are usually low-cost and easy to mass-produce, while providing an effective clamping solution. The wedge is simple in design and relatively easy to maintain and replace, which helps reduce downtime in production.

[0041] Further, the vertical projection of the wedge block along the clamping direction coincides with the plane clamping block.

[0042] The vertical projections of the wedge and the flat clamp in the clamping direction coincide, ensuring the accuracy and consistency of the clamp when clamping the circuit board. This design allows the clamping force to be more evenly distributed on the circuit board, reducing damage to the circuit board caused by excessive local pressure. The coincident projections of the wedge and the flat clamp simplify the operation of the clamp because the user only needs to apply force in one direction to achieve clamping. The synergy of the wedge and the flat clamp improves the stability of the circuit board in the clamp, especially when handling larger or heavier circuit boards.

[0043] In some embodiments, the first clamp arm 1 is detachably connected to the first clamp block portion 102, or the second clamp arm 2 is detachably connected to the second clamp block portion 201, or the first clamp arm 1 is detachably connected to the first clamp block portion 102 and the second clamp arm 2 is detachably connected to the second clamp block portion 201.

[0044] The detachable connection allows for quick replacement of worn or damaged first clamp block portion 102 or second clamp block portion 201, reducing the time and labor intensity of maintenance and repair. This helps reduce long-term operating costs because specific parts of the clamp can be replaced individually without having to replace the entire clamp.

[0045] In some embodiments, a liquid medicine groove 103 extending along the circuit board insertion direction is formed on the first clamping block portion 102 and / or the second clamping block portion 201 .

[0046] The circuit board is inserted into the fixture from the opening of the fixture, and the direction of insertion of the circuit board is perpendicular to the clamping direction of the fixture. A notch is opened in the middle of the first clamping block portion 102 and / or the second clamping block portion 201 as a potion tank 103. The design of the potion tank 103 allows the fixture to be used in chemical treatment processes, such as cleaning, etching or application of flux, without the need for additional equipment or steps. The chemical reaction with the potion is increased, and the flow channel of the potion is improved, making the reaction more uniform, and the residual potion can be blown out smoothly during drying. The integrated potion tank 103 allows chemical treatment to be performed while clamping the circuit board, reducing the transportation of the circuit board between different processing steps and improving the overall production efficiency.

[0047] In some embodiments, the second clamping arm 2 is a forked structure, and each fork is provided with a second clamping block portion 201 .

[0048] Furthermore, the first clamping arm 1 is a forked structure, and each fork is provided with a first clamping block portion 102 that cooperates with the second clamping block portion 201 .

[0049] The front end of the second clamp arm 2 can be designed as a forked structure as required, and two second clamping blocks 201 are designed. In order to match the change of the second clamp arm 2, the first clamp arm 1 can only be provided with one first clamping block 102 to cooperate with the second clamp arm 2, or a forked structure of the same shape can be provided, and two first clamping blocks 102 that work together with the second clamping block 201 are designed. The second clamp arm 2 with a forked structure can provide a stronger clamping ability because it increases the contact points with the circuit board. The forked structure helps to distribute the clamping force more evenly, reducing the pressure on any single point on the circuit board, thereby reducing the risk of damage. Two clamping points are provided in the same fixture to ensure the clamping force and flatness of the circuit board surface. This is because when the fixture is clamped, the interval between the clamping points of the fixture equipped with two clamping points is reduced, and the two clamping points allow for a tighter distribution of clamping force, reducing the possibility of bending or warping of the circuit board in the fixture.

[0050] In some embodiments, a connecting bracket 104 is disposed at the rear end of the first clamping arm 1 , and a fixing shaft 105 is rotatably connected to the connecting bracket 104 , and the fixing shaft 105 is connected to the second clamping arm 2 .

[0051] By providing the connecting bracket 104 and the fixing shaft 105 at the rear end of the first clamping arm 1, the structural stability of the entire clamp can be enhanced, especially when clamping a heavier or larger circuit board. The rotatable fixing shaft 105 allows the second clamping arm 2 to be adjusted to a certain angle relative to the first clamping arm 1, which may help to accommodate circuit boards of different shapes and sizes.

[0052] The embodiment of the utility model provides a circuit board clamping device, comprising two connecting rods 301, a first frame plate 302, a second frame plate 303 and two elastic telescopic mechanisms 304, wherein the two connecting rods 301 are arranged parallel to each other, the first frame plate 302 and the second frame plate 303 are arranged parallel to each other, and the first frame plate 302 and the second frame plate 303 are both provided with a plurality of circuit board clamps for front-end clamping as in any of the above embodiments; one end of the two connecting rods 301 is fixedly connected to the second frame plate 303, the other ends of the two connecting rods 301 are respectively connected to one end of two elastic telescopic mechanisms 304, and the other ends of the two elastic telescopic mechanisms 304 are connected to the first frame plate 302; the elastic telescopic mechanisms 304 can be elastically telescopic along the axial direction of the connecting rods 301. The specific description of the circuit board clamp for front-end clamping can refer to the above embodiments, which will not be repeated here.

[0053] The clamping device has an elastic expansion and contraction function. After the clamping device is compressed and the circuit board is placed in, the elastic expansion and contraction mechanism 304 can be stretched to tighten the circuit board, thereby ensuring the flatness of the circuit board surface, making the circuit board solution react more evenly, and improving the yield rate. Through the rapid adjustment function of the elastic expansion and contraction mechanism 304, the device can be quickly adjusted to adapt to circuit boards of different sizes, reducing the adjustment time in production. At the same time, the circuit board clamping device can be used not only to clamp ordinary circuit boards, but also to clamp flexible circuit boards. The clamping device is equipped with a plurality of front-end clamping circuit board clamps such as any of the above embodiments, and can be compatible with large circuit boards or small circuit boards. The two clamps in the above embodiments are provided on the circuit board clamping device to meet different uses.

[0054] Furthermore, a limiting mechanism 305 is included, and the limiting mechanism 305 is used to limit the moving distance of the first frame plate 302 relative to the connecting rod 301 in the axial direction of the connecting rod 301.

[0055] The limiting mechanism 305 ensures that the axial movement of the first frame plate 302 is controlled within a precise range, avoiding the spacing between the first frame plate 302 and the second frame plate 303 being too large or too small, thereby ensuring the positioning accuracy of the circuit board fixture.

[0056] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A front-end clamping circuit board fixture, characterized in that: The clamp comprises a first clamp arm (1) and a second clamp arm (2) which cooperate with each other to clamp a circuit board, wherein a first clamp block portion (102) is arranged on the inner side of the first clamp arm (1), and a second clamp block portion (201) is arranged on the inner side of the second clamp arm (2), and a clamping inclined surface (202) is arranged on the second clamp block portion (201), and in the direction from the front end to the rear end of the second clamp arm (2), the clamping inclined surface (202) gradually moves away from the circuit board, so that the contact position between the second clamp block portion (201) and the circuit board is located at the front end of the clamp.

2. A front-end clamping circuit board fixture according to claim 1, characterized in that: The first clamping block portion (102) is provided with a clamping plane (101), the first clamping block portion (102) is a plane clamping block, and the second clamping block portion (201) is a wedge block, the thick end of the wedge block is located at the front end of the second clamping arm (2) and faces the circuit board.

3. A front-end clamping circuit board fixture according to claim 2, characterized in that: The vertical projection of the wedge block along the clamping direction coincides with the planar clamp block.

4. A front-end clamping circuit board fixture according to claim 1, characterized in that: The first clamp arm (1) and the first clamp block portion (102) are detachably connected, or the second clamp arm (2) and the second clamp block portion (201) are detachably connected, or the first clamp arm (1) and the first clamp block portion (102) are detachably connected and the second clamp arm (2) and the second clamp block portion (201) are detachably connected.

5. A front-end clamping circuit board fixture according to any one of claims 1 to 4, characterized in that: The first clamping block portion (102) and / or the second clamping block portion (201) is provided with a medicine solution groove (103) extending along the circuit board insertion direction.

6. A front-end clamping circuit board fixture according to any one of claims 1 to 4, characterized in that: The second clamping arm (2) is a forked structure, and each fork is provided with the second clamping block portion (201).

7. A front-end clamping circuit board fixture according to claim 6, characterized in that: The first clamp arm (1) is a forked structure, and each fork is provided with a first clamp block portion (102) that cooperates with the second clamp block portion (201).

8. A front-end clamping circuit board fixture according to any one of claims 1 to 4, characterized in that: A connecting bracket (104) is provided at the rear end of the first clamping arm (1), a fixing shaft (105) is rotatably connected to the connecting bracket (104), and the fixing shaft (105) is connected to the second clamping arm (2).

9. A circuit board clamping device, characterized in that: The invention comprises two connecting rods (301), a first frame plate (302), a second frame plate (303) and two elastic telescopic mechanisms (304), wherein the two connecting rods (301) are arranged parallel to each other, the first frame plate (302) and the second frame plate (303) are arranged parallel to each other, and the first frame plate (302) and the second frame plate (303) are both provided with a plurality of circuit board clamps with front end clamps as described in any one of claims 1 to 8; one end of the two connecting rods (301) is fixedly connected to the second frame plate (303), the other end of the two connecting rods (301) is respectively connected to one end of the two elastic telescopic mechanisms (304), and the other end of the two elastic telescopic mechanisms (304) is connected to the first frame plate (302); the elastic telescopic mechanism (304) can be elastically telescopic along the axial direction of the connecting rod (301).

10. A circuit board clamping device according to claim 9, characterized in that: It also includes a limiting mechanism (305), which is used to limit the moving distance of the first frame plate (302) relative to the connecting rod (301) in the axial direction of the connecting rod (301).

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