PCB fixing clamp
By setting clamps and screw holes on the fixture plate of the PCB fixing fixture, adjusting the clamping gap with bolts, clamping the oblique diagonal of the PCB, the problems of complex fixture structure and excessive contact area in the prior art are solved, and the problem of the clamp structure in the prior art is realized. Adaptability to stable clamping and dense components for PCBs of different thicknesses and sizes.
Patent Information
- Application Number
- CN202421265580.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing PCB fixing fixtures have complex structures, too large clamp size and too large contact area, making it difficult to clamp PCBs with dense electronic components, especially when the edges of components and PCB are small, it is easy to clamp.
Design a PCB fixing fixture including fixture plate, clamp and bolts. By setting clamps and screw holes at the corners of the fixture plate, adjusting the gap between the clamp and fixture plate with bolts, clamping the diagonal diagonal of the PCB to ensure that Stable clamping and small contact area.
It realizes stable clamping of PCBs of different thicknesses and sizes to avoid clamping components, simplify the structure, and is suitable for PCBs with dense electronic components.
Smart Images
Figure CN222216079U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixing a PCB (Printed Circuit Board), in particular to a PCB fixing fixture. Background Art
[0002] PCB, Chinese name for printed circuit board, is the carrier of electrical connection of electronic components. PCB usually needs to be clamped and fixed during the production process, so that the surface of the fixed PCB can be worked accordingly to achieve the purpose of installing electronic components on the PCB or detecting the installation position of electronic components installed on the PCB.
[0003] Most existing PCB fixtures have complex structures and require cylinders or electric cylinders for driving. For PCB fixtures with relatively simple structures, the clamping block is too large, and when clamping the PCB, the contact area between the clamping block and the PCB surface is too large; when the distance between the electronic components on the PCB and the edge of the PCB is small, the clamping block is easy to clamp the electronic components on the edge of the PCB, so the above PCB fixture cannot clamp the PCB with dense electronic components on the edge. Utility Model Content
[0004] Based on this, it is necessary to provide a PCB fixing fixture.
[0005] The utility model provides a technical solution to the above-mentioned technical problems as follows: a PCB fixing fixture, comprising: a fixture plate, at least two clamping blocks and at least two bolts; the four corners of the fixture plate are respectively a first corner, a second corner, a third corner and a fourth corner, and the first corner, the second corner, the third corner and the fourth corner are sequentially distributed on the fixture plate in a clockwise direction; the first corner and the third corner are respectively provided with screw holes, and the two clamping blocks are both provided with through holes, and the two clamping blocks are respectively arranged on the first corner and the third corner, each of the through holes is aligned with and connected to a screw hole, and the bolt passes through the through hole and is screwed into the screw hole; one side of the clamping block is movably abutted against the fixture plate, and the other side of the clamping block is movably abutted against the head of the bolt.
[0006] In one embodiment, at least two screw holes are respectively formed at the first corner and the third corner.
[0007] In one embodiment, the straight line direction from the first corner to the third corner is a first direction, the screw holes on the first corner are equidistantly arranged in the first direction, and the screw holes on the third corner are equidistantly arranged in the first direction.
[0008] In one embodiment, the number of the clamping blocks is four, the number of the bolts is four, the second corner and the fourth corner are both provided with the screw holes, the four clamping blocks are each provided with the through holes, the four clamping blocks are respectively arranged on the first corner, the second corner, the third corner and the fourth corner, each of the through holes is aligned with and connected to a screw hole, and the bolt passes through the through hole and is screwed into the screw hole.
[0009] In one embodiment, the second corner and the fourth corner are respectively provided with at least two screw holes.
[0010] In one embodiment, the straight line direction from the second corner to the fourth corner is the second direction, the screw holes on the second corner are equidistantly arranged in the second direction, and the screw holes on the fourth corner are equidistantly arranged in the second direction.
[0011] In one embodiment, a top outlet is opened in the middle of the fixture plate.
[0012] In one embodiment, the clamping block has a clamping portion and a rotating portion, the clamping portion and the rotating portion are connected, the through hole is opened on the rotating portion, the side of the clamping portion facing the clamp plate is a contact surface, and two inclined surfaces are respectively arranged between the side surfaces on both sides of the clamping portion and the contact surface of the clamping portion.
[0013] In one embodiment, the cross-section of the clamping portion is triangular.
[0014] In one embodiment, a rubber layer is provided on a surface of the clamping block facing the clamping plate.
[0015] The beneficial effects provided by the utility model are as follows: by rotating two clamping blocks respectively on the first corner and the third corner of the clamp plate, that is, rotating two clamping blocks respectively on a pair of diagonal corners of the clamp plate; when the PCB is placed on the PCB fixing clamp, the two clamping blocks respectively clamp a pair of diagonal corners of the PCB, so that the PCB can be clamped and fixed on the PCB fixing clamp. Before the PCB fixing clamp clamps the PCB, the gap between the clamping block and the clamp plate can be adjusted by screwing the bolts on the clamping block, so that the clamping of PCBs of different thicknesses can be adjusted; when the PCB is placed on the clamp plate, the PCB can be clamped more firmly by the PCB fixing clamp by tightening the bolts. The PCB fixing clamp provided by the utility model has a simple structure, a small contact area between the clamping block and the PCB, and only needs at least two clamps to clamp a pair of diagonal corners of the PCB to clamp and fix the PCB. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a PCB fixing fixture according to an embodiment;
[0018] Figure 2 It is a schematic diagram of a three-dimensional exploded structure of a PCB fixing fixture according to an embodiment;
[0019] Figure 3 The figure is a schematic diagram of the three-dimensional structure of a clamping block in one direction according to an embodiment.
[0020] In the accompanying drawings, 10, PCB fixing fixture; 100, fixture plate; 110, first corner; 120, second corner; 130, third corner; 140, fourth corner; 150, screw hole; 160, top outlet; 200, clamping block; 210, clamping part; 211, inclined surface; 212, rubber layer; 220, rotating part; 221, through hole; 300, bolt. DETAILED DESCRIPTION
[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.
[0022] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0023] In one embodiment, Figure 1 and Figure 2As shown, a PCB fixing fixture 10 includes: a fixture plate 100, at least two clamping blocks 200 and at least two bolts 300; the four corners of the fixture plate 100 are respectively a first corner 110, a second corner 120, a third corner 130 and a fourth corner 140, and the first corner 110, the second corner 120, the third corner 130 and the fourth corner 140 are sequentially distributed on the fixture plate 100 in a clockwise direction; the first corner 110 and the third corner 1 30 are respectively provided with screw holes 150, and the two clamping blocks 200 are both provided with through holes 221. The two clamping blocks 200 are respectively arranged on the first corner 110 and the third corner 130, each of the through holes 221 is aligned with and connected to a screw hole 150, and the bolt 300 passes through the through hole 221 and is screwed into the screw hole 150; one side of the clamping block 200 is movably abutted against the fixture plate 100, and the other side of the clamping block 200 is movably abutted against the head of the bolt 300.
[0024] Specifically, two clamping blocks 200 are respectively rotatably provided on the first corner 110 and the third corner 130 of the clamping plate 100, that is, two clamping blocks 200 are respectively rotatably provided on a pair of diagonally opposite corners of the clamping plate 100; when the PCB is placed on the PCB fixing fixture 10, the two clamping blocks 200 clamp a pair of diagonally opposite corners of the PCB respectively, so that the PCB can be clamped and fixed on the PCB fixing fixture 10. Before the PCB fixing fixture 10 clamps the PCB, the gap between the clamping block 200 and the clamping plate 100 can be adjusted by screwing the bolt 300 on the clamping block 200, so that PCBs of different thicknesses can be clamped; when the PCB is placed on the clamping plate 100, the PCB can be clamped more firmly by the PCB fixing fixture 10 by tightening the bolt 300. The PCB fixing fixture 10 provided by the utility model has a simple structure, and the contact area between the clamp block 200 and the PCB is small, and only at least two clamps are needed to clamp a pair of diagonally opposite corners of the PCB to clamp and fix the PCB. Therefore, the PCB fixing fixture 10 provided by the utility model can clamp a PCB with dense electronic components.
[0025] In this embodiment, each of the bolts 300 passes through the through hole 221 on the clamp block 200 and is screwed into a screw hole 150 on the fixture plate 100, so that the clamp block 200 can abut against the PCB, thereby allowing the clamp block 200 to fix the PCB on the PCB fixing fixture 10.
[0026] In order to adapt to clamping PCBs of different sizes, in one embodiment, Figure 1 and Figure 2As shown, at least two screw holes 150 are respectively provided on the first corner 110 and the third corner 130. Specifically, by providing a plurality of screw holes 150 on the first corner 110 and the third corner 130, the clamping block 200 on the first corner 110 can be rotated and set at a position close to one of the screw holes 150 as required, and similarly, the clamping block 200 on the third corner 130 can be rotated and set at a position close to one of the screw holes 150 as required. Through the above arrangement, the positional relationship between the two clamping blocks 200 can be adjusted, so as to adapt to PCBs of different sizes.
[0027] In one embodiment, Figure 1 and Figure 2 As shown, the straight line direction from the first corner 110 to the third corner 130 is the first direction, and the screw holes 150 on the first corner 110 are arranged equidistantly in the first direction, and the screw holes 150 on the third corner 130 are arranged equidistantly in the first direction. Specifically, by arranging the screw holes 150 on the first corner 110 equidistantly in the first direction, the clamping block 200 arranged on the first corner 110 can always clamp to the corner position of the PCB regardless of which screw hole 150 it is rotated to be close to; similarly, by arranging the screw holes 150 on the third corner 130 equidistantly in the first direction, the clamping block 200 arranged on the third corner 130 can always clamp to the corner position of the PCB regardless of which screw hole 150 it is rotated to be close to. Through the above arrangement, it can be ensured that each clamping block 200 can always clamp to the corner position of the PCB, so as to ensure that the PCB is firmly clamped while the contact area with the PCB is minimized.
[0028] In order to further firmly clamp the PCB, in one embodiment, Figure 1 and Figure 2 As shown, the number of the clamping blocks 200 is four, the number of the bolts 300 is four, the second corner 120 and the fourth corner 140 are both provided with the screw holes 150, the four clamping blocks 200 are all provided with the through holes 221, the four clamping blocks 200 are respectively provided on the first corner 110, the second corner 120, the third corner 130 and the fourth corner 140, each of the through holes 221 is aligned with and connected to a screw hole 150, and the bolts 300 pass through the through holes 221 and are screwed into the screw holes 150. Specifically, by providing four clamping blocks 200 on the fixture plate 100, the four corner positions of the PCB can be clamped by the four clamping blocks 200, so that the PCB can be further firmly clamped.
[0029] In order to further adapt to clamping PCBs of different sizes, in one embodiment, Figure 1 and Figure 2 As shown, at least two screw holes 150 are respectively provided on the second corner 120 and the fourth corner 140. Specifically, by providing a plurality of screw holes 150 on the second corner 120 and the fourth corner 140, the clamping block 200 on the second corner 120 can be rotated and set at a position close to one of the screw holes 150 as required, and similarly, the clamping block 200 on the fourth corner 140 can be rotated and set at a position close to one of the screw holes 150 as required. Through the above arrangement, the positional relationship between the two clamping blocks 200 can be adjusted, so as to adapt to PCBs of different sizes.
[0030] In this embodiment, the first corner 110 and the third corner 130 are also respectively provided with at least two screw holes 150. Therefore, the positions of the four clamping blocks 200 on the first corner 110, the second corner 120, the third corner 130 and the fourth corner 140 can be adjusted simultaneously according to the size of the PCB, so that the four clamping blocks 200 can adapt to the size of the PCB.
[0031] In one embodiment, Figure 1 and Figure 2 As shown, the straight line direction from the second corner 120 to the fourth corner 140 is the second direction, and the screw holes 150 on the second corner 120 are arranged equidistantly in the second direction, and the screw holes 150 on the fourth corner 140 are arranged equidistantly in the second direction. Specifically, by arranging the screw holes 150 on the second corner 120 equidistantly in the second direction, the clamping block 200 arranged on the second corner 120 can always clamp to the corner position of the PCB no matter which screw hole 150 it is rotated to be close to; similarly, by arranging the screw holes 150 on the fourth corner 140 equidistantly in the second direction, the clamping block 200 arranged on the fourth corner 140 can always clamp to the corner position of the PCB no matter which screw hole 150 it is rotated to be close to. Through the above arrangement, it can be ensured that each clamping block 200 can always clamp to the corner position of the PCB, so as to ensure that the PCB is firmly clamped while the contact area with the PCB is minimized.
[0032] In this embodiment, the straight line direction from the first corner 110 to the third corner 130 is the first direction, the screw holes 150 on the first corner 110 are equidistantly arranged in the first direction, and the screw holes 150 on the third corner 130 are equidistantly arranged in the first direction. Through the above arrangement, it can be ensured that the four clamping blocks 200 can always clamp the four corner positions of the PCB.
[0033] In order to facilitate ejection of the PCB placed on the PCB fixing fixture 10, in one embodiment, as shown in FIG. Figure 1 and Figure 2 As shown, a top outlet 160 is provided in the middle of the fixture plate 100. Specifically, the top outlet 160 is provided in the middle of the fixture plate 100, and the top outlet 160 penetrates the fixture plate 100. When the PCB needs to be taken out from the PCB fixing fixture 10, the clamp block 200 only needs to be moved out from the PCB, and then the PCB is pushed out through the top outlet 160, so that the PCB can be quickly taken out from the PCB fixing fixture 10.
[0034] In order to allow the clamp to press the PCB more quickly, in one embodiment, Figure 3 As shown, the clamping block 200 has a clamping portion 210 and a rotating portion 220, the clamping portion 210 and the rotating portion 220 are connected, the through hole 221 is provided on the rotating portion 220, the side of the clamping portion 210 facing the clamping plate 100 is a contact surface, and two inclined surfaces 211 are respectively provided between the side surfaces on both sides of the clamping portion 210 and the contact surface of the clamping portion 210. Specifically, one side of each inclined surface 211 is connected to the contact surface, and the other side of each inclined surface 211 is connected to a side surface of the clamping portion 210. The contact surface is used to contact the PCB. By providing the inclined surface 211, when the clamping block 200 rotates to contact the PCB, the inclined surface 211 contacts the PCB first, and through the guidance of the inclined surface 211, the PCB can contact the contact surface more quickly, that is, the clamping block 200 and the clamping plate 100 can quickly clamp the PCB.
[0035] In order to reduce the contact area between the clamp block 200 and the PCB, in one embodiment, Figure 3 As shown, the cross-sectional shape of the clamping portion 210 is a triangle. Specifically, one corner of the triangular clamping portion 210 is away from the rotating portion 220, and the other two corners of the triangle are connected to the rotating portion 220. By setting the clamping portion 210 in a triangular shape, the contact area between the clamping block 200 and the PCB can be reduced while ensuring that the clamping block 200 firmly clamps the PCB.
[0036] In order to protect the surface of the PCB, in one embodiment, Figure 3 As shown, a rubber layer 212 is provided on the side of the clamp block 200 facing the fixture plate 100. Specifically, the rubber layer 212 has a certain elasticity, so the rubber layer 212 is provided on the side of the clamp block 200 facing the fixture plate 100, and the PCB can be protected by the rubber layer 212 to prevent the clamp block 200 from scratching the PCB.
[0037] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A PCB fixing fixture, characterized in that: include: a fixture plate, at least two clamping blocks, and at least two bolts; The four corners of the fixture plate are respectively a first corner, a second corner, a third corner and a fourth corner, and the first corner, the second corner, the third corner and the fourth corner are sequentially distributed on the fixture plate in a clockwise direction; The first corner and the third corner are respectively provided with screw holes, the two clamping blocks are respectively provided with through holes, the two clamping blocks are respectively arranged on the first corner and the third corner, each through hole is aligned with and connected to a screw hole, and the bolt passes through the through hole and is screwed into the screw hole; One side of the clamp block is movably in contact with the fixture plate, and the other side of the clamp block is movably in contact with the head of the bolt.
2. The PCB fixing fixture according to claim 1, characterized in that: The first corner and the third corner are respectively provided with at least two screw holes.
3. The PCB fixing fixture according to claim 2, characterized in that: The straight line direction from the first corner to the third corner is a first direction, the screw holes on the first corner are equidistantly arranged in the first direction, and the screw holes on the third corner are equidistantly arranged in the first direction.
4. The PCB fixing fixture according to claim 1, characterized in that: The number of the clamping blocks is four, the number of the bolts is four, the second corner and the fourth corner are both provided with the screw holes, the four clamping blocks are all provided with the through holes, the four clamping blocks are respectively arranged on the first corner, the second corner, the third corner and the fourth corner, each through hole is aligned with and connected to a screw hole, and the bolt passes through the through hole and is screwed into the screw hole.
5. The PCB fixing fixture according to claim 4, characterized in that: The second corner and the fourth corner are respectively provided with at least two screw holes.
6. The PCB fixing fixture according to claim 5, characterized in that: The straight line direction from the second corner to the fourth corner is the second direction, the screw holes on the second corner are equidistantly arranged in the second direction, and the screw holes on the fourth corner are equidistantly arranged in the second direction.
7. The PCB fixing fixture according to claim 1, characterized in that: A top outlet is provided in the middle of the fixture plate.
8. The PCB fixing fixture according to claim 1, characterized in that: The clamping block has a clamping portion and a rotating portion, the clamping portion and the rotating portion are connected, the through hole is opened on the rotating portion, the side of the clamping portion facing the clamp plate is a contact surface, and two inclined surfaces are respectively arranged between the side surfaces on both sides of the clamping portion and the contact surface of the clamping portion.
9. The PCB fixing fixture according to claim 8, characterized in that: The cross-section of the clamping portion is in a triangular shape.
10. The PCB fixing fixture according to any one of claims 1 to 9, characterized in that: A rubber layer is provided on a surface of the clamping block facing the clamping plate.