Clamp

Abstract

The utility model provides a clamp which comprises a base, and the base comprises a bottom plate and a positioning assembly. At least one positioning groove is formed in the first surface of the bottom plate, the positioning groove is used for inserting a plate, at least one mounting groove is formed in the groove side wall of the positioning groove, at least one operation groove is formed in the second surface of the bottom plate, and each operation groove is communicated to the groove side wall of the mounting groove; the positioning assembly comprises at least one positioning mechanism, each mounting groove is internally provided with one positioning mechanism, each positioning mechanism comprises a sliding block and a first reset piece, and the sliding blocks can move between the avoiding positions close to the groove bottoms of the mounting grooves and the clamping positions away from the groove bottoms of the mounting grooves; the first reset piece is used for applying reset force for moving back to the groove bottom of the installation groove to the sliding block, and when the sliding block moves between the avoiding position and the clamping position, at least part of the sliding block is exposed to the groove bottom of the operation groove all the time. The clamp enables the circuit to be attached to the second wall surface all the time through the positioning mechanism, the circuit board is prevented from shifting, and the alignment precision is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of jigs, and particularly relates to a jig. Background Art

[0002] With the development of LED display technology, the market demand for transparent screens is increasing. The visual effect of a transparent screen depends on having as few obstacles as possible behind the LED lamp beads. The current technology is to mount electronic components such as ICs on the surface of a PCB, and mount lamp beads on the edge surface surrounding the PCB board surface. In this way, the thickness direction of the PCB can be perpendicular to the viewing direction, so as to hide the relatively wide PCB board surface behind the lamp beads to improve the transparency effect of the LED display. In related technologies, as Figure 1 shown, a jig 10' with a positioning groove 101' is used to position the PCB. During processing, the PCB is inserted into the positioning groove 101', then a stencil is covered on the jig 10', and the positioning holes on the stencil are aligned with the PCB. Then, the LED lamp beads are mounted on the edge surface of the PCB through the positioning holes. However, the width of the positioning holes is generally larger than the thickness of the PCB, and the PCB is prone to shift in the positioning holes, resulting in poor alignment accuracy between the lamp beads and the edge surface of the PCB. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a jig, aiming to solve the technical problem of poor alignment accuracy between the lamp beads and the edge surface of the circuit board in related technologies.

[0004] The utility model is realized as follows. A jig is used for a base plate. The jig includes a base, and the base includes a bottom plate and a positioning component.

[0005] The bottom plate has a first surface and a second surface facing away from each other. At least one positioning groove is formed on the first surface of the bottom plate for inserting the plate. The width of the notch of the positioning groove is greater than the width of the plate. At least one installation groove is formed on the side wall of the positioning groove in its own width direction. At least one operation groove is formed on the second surface of the bottom plate, and each operation groove communicates with the side wall of the installation groove.

[0006] The positioning component includes at least one positioning mechanism. A positioning mechanism is arranged in each installation groove. The positioning mechanism includes a slider and a first reset member. The slider can move between an avoidance position close to the bottom of the installation groove and a clamping position away from the bottom of the installation groove. The first reset member is connected between the slider and the bottom plate and is used to apply a reset force to the slider to move away from the bottom of the installation groove. When the slider moves between the avoidance position and the clamping position, the slider is always at least partially exposed at the bottom of the operation groove.

[0007] As a possible implementation, a plurality of mounting grooves are formed in the groove side walls of each of the positioning grooves. The plurality of mounting grooves are all located on the same groove side wall of the corresponding positioning groove. A slot is formed in the slider. When the slider moves between the avoidance position and the clamping position, the slot is always in communication with the operation groove.

[0008] As a possible implementation, the width of the notch of the positioning groove is greater than the width of the bottom of the positioning groove.

[0009] As a possible implementation, the fixture further has N avoidance grooves formed in the first surface. The width of the avoidance groove is greater than the width of the positioning groove. The positioning groove passes through the opposite two groove side walls of at least one of the avoidance grooves in its own length direction. N is a natural number greater than or equal to 1.

[0010] As a possible implementation, a plurality of positioning grooves are formed. The plurality of positioning grooves are arranged at intervals in sequence along the width direction of the positioning groove. Each of the positioning grooves passes through N avoidance grooves. N is greater than or equal to 2. The N avoidance grooves divide the positioning groove into at least N - 1 positioning parts in the length direction of the positioning groove. At least one of the mounting grooves is formed on each of the positioning parts.

[0011] As a possible implementation, the fixture further includes a control base. The control base includes a control board. At least one positioning pin is provided on the control board. The number of the positioning pins is equal to the number of the sliders, and each of the positioning pins corresponds to each of the sliders one by one. When each of the sliders is in the clamping position, when the control board is buckled on the second surface facing the bottom plate, each of the positioning pins can be inserted into the slot of the corresponding slider through the corresponding operation groove. The control board can move in a first direction to make each of the positioning pins push the corresponding slider to move to the avoidance position, and then move in a second direction to make each of the positioning pins push the corresponding slider to move to the clamping position. The first direction is opposite to the second direction.

[0012] As a possible implementation, the control base further includes a control frame. The control board is slidably connected to the control frame. The control board can slide relative to the control frame in a first direction to a first position and can slide relative to the control frame in a second direction to a second position. When the control board is in the second position, the control frame can be docked with the bottom plate, and each of the positioning pins is inserted into the slot of the corresponding slider through the corresponding operation groove. When the control board slides to the first position, each of the positioning pins can push the corresponding slider to move to the avoidance position.

[0013] As a possible implementation, the control box is provided with a sliding groove which has a first groove side wall, a second groove side wall, a third groove side wall and a fourth groove side wall that are connected end to end in sequence. The control board is slidably connected to the first groove side wall and the third groove side wall. When the control board abuts against the second groove side wall and is spaced from the fourth groove side wall, it is in the second position. When the control board abuts against the fourth groove side wall and is spaced from the second groove side wall, it is in the first position. The control seat further includes a second reset member that connects the control board and the control box respectively. The second reset member can apply a reset force towards the second position to the control board when the control board moves towards the first position.

[0014] As a possible implementation, the control seat further includes a connecting plate and an eccentric wrench. The connecting plate is connected to the side of the control board facing the fourth groove side wall and extends to the outer side of the control box facing away from the sliding groove. The eccentric wrench is rotatably connected to the connecting plate and abuts against the outer side of the control box. The eccentric wrench can drive the control board to slide between the first position and the second position by rotation.

[0015] As a possible implementation, a first limiting structure is provided on the bottom plate, and a second limiting structure is provided on the control box. The second limiting structure can be docked with the first limiting structure when the control board is buckled towards the second surface of the base.

[0016] The technical effect of the present utility model relative to the prior art is as follows: during use, a tool can be inserted through the operation groove first to move the slider to the avoidance position through the tool, then the circuit board can be inserted into the positioning groove, and then the slider can be moved towards the clamping position through the tool, or the tool can be released to enable the slider to move towards the clamping position under the action of the reset force until the slider and the second wall surface jointly clamp the circuit board. In this way, the circuit board can always be attached to the second wall surface in the positioning groove, avoiding the offset of the circuit board, with high alignment accuracy, and at the same time being applicable to the positioning of circuit boards with different thicknesses, having a wider applicability. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments of the present utility model or the description of the prior art will be briefly introduced below. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a cross-sectional view of a fixture in the related art;

[0019] Figure 2 It is a cross-sectional view of the fixture provided by an embodiment of the present utility model;

[0020] Figure 3 is Figure 2 an enlarged view of part A in

[0021] Figure 4 It is a sectional view of the fixture provided by an embodiment of the present utility model;

[0022] Figure 5 is Figure 4 an enlarged view of part B in

[0023] Figure 6 It is a top view of the control board provided by an embodiment of the present utility model;

[0024] Figure 7 It is a schematic diagram of the usage method of the fixture provided by an embodiment of the present utility model;

[0025] Figure 8 It is a top view of the control base provided by an embodiment of the present utility model, wherein the control board is in the second position;

[0026] Figure 9 It is a top view of the control base provided by an embodiment of the present utility model, wherein the control board is in the first position.

[0027] Explanation of reference numerals:

[0028] 10’, fixture; 101’, positioning groove;

[0029] 10, base; 11, bottom plate; 1101, first surface; 1102, second surface; 111, second step structure; 12, positioning mechanism; 121, slider; 122, first reset member; 1211, first step structure; 1221, screw; 1222, elastic pad; 1201, slot; 101, positioning groove; 1011, positioning portion; 101a, first wall surface; 101b, second wall surface; 102, installation groove; 103, operation groove; 104, groove; 105, avoidance groove; 20, control base; 21, control board; 211, positioning pin; 22, control frame; 23, second reset member; 24, connecting plate; 25, eccentric wrench; 251, rotating portion; 252, wrench portion; 2501, rotating shaft; 25a, opening area; 25b, closing area; 26, wear-resistant pad; 201, chute; 2011, first groove side wall; 2012, second groove side wall; 2013, third groove side wall; 2014, fourth groove side wall; 202, second limiting structure; 2021, limiting groove; 90, circuit board. Detailed implementation manners

[0030] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and 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, and thus should not be construed as limiting the present utility model.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0033] In the present utility model, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In order to make the purpose, technical solution and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] An embodiment of the present utility model provides a fixture for a bottom plate material, which can be a circuit board, a chip, or other plate-like structures.

[0036] For ease of description, in the following embodiments, a board is used as the circuit board for illustration. At this time, after the fixture positions the circuit board, it is convenient for the circuit board to mount LED beads or perform other operations. Among them, the circuit board has two opposite board surfaces and an edge surface surrounding the board surfaces. The connection direction of the two board surfaces is the thickness direction of the circuit board. The edge surface includes a first edge surface, a second edge surface, a third edge surface, and a fourth edge surface that are connected end to end in sequence. The circuit board is square. Therefore, the first edge surface is parallel to the third edge surface, the second edge surface is parallel to the fourth edge surface, and the first edge surface is perpendicular to the second edge surface.

[0037] Please refer to Figure 2 and Figure 3 , the fixture includes a base 10, and the base 10 includes a bottom plate 11 and a positioning component.

[0038] The bottom plate 11 has a first surface 1101 and a second surface 1102 that face each other. The direction from the first surface 1101 to the second surface 1102 is the thickness direction of the bottom plate 11. At least one positioning groove 101 is formed on the first surface 1101 of the bottom plate 11, and the positioning groove 101 is used for inserting the circuit board. Among them, inserting the circuit board means keeping the width direction of the circuit board consistent with the depth direction of the positioning groove 101, and inserting the first edge surface into the positioning groove 101 facing the notch of the positioning groove 101.

[0039] The positioning groove 101 extends in a straight line to fit the circuit board. The width direction of the positioning groove 101 is the thickness direction of the circuit board, the length direction of the positioning groove 101 is the length direction of the circuit board, and the depth direction of the positioning groove 101 is the width direction of the circuit board. The width of the notch of the positioning groove 101 is greater than the width of the circuit board, and the length of the positioning groove 101 is greater than or equal to the length of the circuit board, so as to facilitate the circuit board to be inserted into the positioning groove 101.

[0040] At least one mounting groove 102 is formed on the groove side wall of the positioning groove 101 in its own width direction, and at least one operation groove 103 is formed on the second surface 1102 of the bottom plate 11, and each operation groove 103 communicates with the groove side wall of the mounting groove 102.

[0041] Specifically, the groove side wall of the positioning groove 101 may have a first wall surface 101a and a second wall surface 101b, the first wall surface 101a and the second wall surface 101b face each other, and the direction from the first wall surface 101a to the second wall surface 101b is the width direction of the positioning groove 101. The mounting groove 102 is formed on the first wall surface 101a of the positioning groove 101, and the notch and the bottom of the mounting groove 102 face the second wall surface 101b. Among them, when a plurality of mounting grooves 102 are formed on the groove side wall of the positioning groove 101, the plurality of mounting grooves 102 may all be formed on the first wall surface 101a, or part of them may be formed on the first wall surface 101a and the other part may be formed on the second wall surface 101b.

[0042] The positioning component includes at least one positioning mechanism 12. A positioning mechanism 12 is provided in each mounting groove 102. The positioning mechanism 12 includes a slider 121 and a first reset member 122. The slider 121 can move between an avoidance position and a clamping position within the mounting groove 102. When the slider 121 is in the avoidance position, the slider 121 is close to the bottom of the mounting groove 102 to be away from the second wall surface 101b, so that the circuit board can be inserted between the second wall surface 101b and the slider 121. Optionally, when the slider 121 is in the avoidance position, the slider 121 avoids the positioning groove 101. When the slider 121 is in the clamping position, the slider 121 is away from the bottom of the mounting groove 102 and close to the second wall surface 101b. Among them, when the slider 121 is in the clamping position or during the process of the slider 121 moving towards the clamping position, the slider 121 and the second wall surface 101b can jointly clamp the circuit board. The first reset member 122 is connected between the slider 121 and the bottom plate 11 and is used to apply a reset force to the slider 121 to move it away from the bottom of the mounting groove 102. When the slider 121 moves between the avoidance position and the clamping position, the slider 121 is always at least partially exposed at the bottom of the operation groove 103.

[0043] During use, a tool can be inserted through the operation groove 103 first to move the slider 121 to the avoidance position through the tool. Then, the circuit board is inserted into the positioning groove 101. Then, the slider 121 is moved towards the clamping position through the tool, or the tool is released so that the slider 121 moves towards the clamping position under the action of the reset force until the slider 121 and the second wall surface 101b jointly clamp the circuit board. In this way, the circuit board can always be attached to the second wall surface 101b in the positioning groove 101, avoiding the circuit board from shifting, with high alignment accuracy. At the same time, it can be applicable to the positioning of circuit boards with different thicknesses, and has a wider applicability.

[0044] Please refer to Figure 3 , in some embodiments, the width of the notch of the positioning groove 101 is greater than the width of the bottom of the positioning groove 101. In this way, the larger notch can facilitate the insertion of the circuit board into the positioning groove 101 and improve the loading efficiency. The narrower width of the bottom of the positioning groove 101 can position the first edge surface of the circuit board to prevent the circuit board from skewing in the positioning groove 101. Among them, the cross-section of the positioning groove 101 can be a right trapezoid, where the second wall surface 101b is perpendicular to the first surface 1101, and an obtuse angle is formed between the second wall surface 101b and the first surface 1101. Among them, the operation groove 103 can be spaced from the positioning groove 101, or can partially or completely penetrate the first wall surface 101a. The width of the mounting groove 102 in the length direction of the positioning groove 101 can be greater than the width of the operation groove 103 in the length direction of the positioning groove 101, so that the slider 121 can abut against the side wall of the mounting groove 102.

[0045] Optionally, please refer to Figure 3, the width of the bottom of the positioning groove 101 can be equal to or slightly larger than the width of the circuit board, so as to improve the positioning accuracy at the first edge surface of the circuit board.

[0046] Optionally, the depth of the positioning groove 101 is equal to the width of the circuit board. In this way, after the circuit board is inserted into the positioning groove 101, the third edge surface of the circuit board can be flush with the first surface 1101 of the bottom plate 11. After the fixture positions the circuit board, a stencil for printing solder paste can be covered on the first surface 1101 of the bottom plate 11. Due to the clamping of the slider 121, the through holes on the stencil can be accurately aligned with the third edge surface. Among them, multiple through holes can be corresponding to the third edge surface, and the solder paste can be printed on the third edge surface through the through holes, so as to facilitate reflow soldering after mounting LED beads in the later stage.

[0047] It should be noted that the circuit board can be inserted into the positioning groove 101 by a manipulator or manually placed in the positioning groove 101 by an operator. After the circuit board is inserted into the positioning groove 101, the third edge surface of the circuit board can also protrude from the first surface 1101 of the bottom plate 11, so as to facilitate other operations on the circuit board. When the circuit board is inserted into the positioning groove 101, the first edge surface can abut against the bottom of the positioning groove 101, or can be spaced from the bottom of the positioning groove 101 under the connection of an external manipulator or through the positioning of the slider 121.

[0048] Optionally, the slider 121 is slidably connected to the installation groove 102. In this way, the installation groove 102 can guide and limit the slider 121, improving the clamping accuracy of the slider 121 on the circuit board. Of course, in other embodiments, the cross-sectional size of the installation groove 102 can also be larger than the cross-sectional size of the slider 121, and the slider 121 is in a free state in the installation groove 102, which is not limited here.

[0049] Optionally, the installation groove 102 penetrates through to the first surface 1101 of the bottom plate 11, so as to facilitate the installation of the positioning mechanism 12 into the installation groove 102 from the side of the first surface 1101.

[0050] Optionally, please refer to Figure 3 , the first reset member 122 can be a spring. The spring is located between the slider 121 and the bottom of the installation groove 102 and is always in a compressed state. At this time, the reset force is an elastic force.

[0051] Specifically, the two ends of the spring are connected to the slider 121 and the bottom of the mounting groove 102 by screws 1221. The slider 121 is provided with a first step structure 1211 on one side facing the bottom of the mounting groove 102, and the table top of the first step structure 1211 faces the first surface 1101. The bottom of the mounting groove 102 is provided with a groove 104, and a second step structure 111 is formed between the groove 104 and the bottom of the mounting groove 102. The table top of the second step structure 111 also faces the first surface 1101, and the table top of the second step structure 111 is actually one of the side walls of the groove 104. Two screws 1221 are screwed to the table top of the first step structure 1211 and the table top of the second step structure 111, respectively. In order to improve the connection reliability of the spring connection, elastic pads 1222 can be sleeved on both screws 1221, one end of the spring is clamped between the corresponding elastic pad 1222 and the table surface of the first step structure 1211, and the other end of the spring is clamped between the corresponding elastic pad 1222 and the table surface of the second step structure 111.

[0052] In other embodiments, the first reset member 122 may also be a magnetic structure, which includes two magnetic members, which are respectively connected to the slider 121 and the bottom of the mounting groove 102. There is a magnetic repulsion force between the two magnetic members. At this time, the reset force is the magnetic repulsion force, which is not limited here.

[0053] In some embodiments, see Figure 2 A plurality of mounting grooves 102 are provided on the groove side wall of each of the positioning grooves 101, and the plurality of mounting grooves 102 are all located on the same groove side wall corresponding to the positioning groove 101. A positioning mechanism 12 is provided in each mounting groove 102, and each positioning mechanism 12 is also located on the same side of the positioning groove 101. In this embodiment, each mounting groove 102 is provided on the first wall surface 101a of the positioning groove 101, and the slider 121 in each positioning mechanism 12 can clamp the circuit board together with the second wall surface 101b, so that the tool can move the plurality of sliders 121 in the same direction, which is convenient for setting and operation of the tool.

[0054] In some embodiments, see Figure 3 The slider 121 is provided with a slot 1201, and when the slider 121 moves between the avoidance position and the clamping position, the slot 1201 is always connected to the operation slot 103. The slot 1201 can be used for inserting a tool, so that the tool can be connected to the slider 121, and the tool can easily move the slider 121. The slot 1201 can be set to be through or closed.

[0055] In some embodiments, see Figure 4 and Figure 5, the fixture further defines N relief grooves 105 on the first surface 1101. The width of the relief groove 105 is greater than that of the positioning groove 101. The positioning groove 101 penetrates through opposite two groove sidewalls of at least one relief groove 105 in its own length direction. N is a natural number greater than or equal to 1. The relief groove 105 can be used to avoid the manipulator. In this way, the manipulator can hold the circuit board and push the circuit board into the positioning groove 101, preventing the circuit board from being unable to be inserted into the positioning groove 101 under its own gravity due to its own deformation.

[0056] In the illustrated embodiment, M rows of relief grooves 105 are defined on the base plate 11. Each row of relief grooves 105 is provided with N relief grooves 105. The N relief grooves 105 are arranged at intervals along the length direction of the positioning groove 101. Each row of relief grooves 105 corresponds to H positioning grooves 101. Each positioning groove 101 sequentially penetrates through the N relief grooves 105 in this row. The H positioning grooves 101 are arranged at intervals in sequence along the width direction of the positioning groove 101. N is greater than or equal to 2. In this way, each circuit board can be held by N manipulators to improve the stability of circuit board transportation. Circuit boards can be arranged in each positioning groove 101, increasing the number of circuit boards that can be positioned by one fixture and improving the positioning efficiency.

[0057] Among them, the N relief grooves 105 divide the positioning groove 101 into at least N - 1 positioning portions 1011 in the length direction of the positioning groove 101. At least one mounting groove 102 is defined on each positioning portion 1011. In this way, after each circuit board is inserted into the positioning groove 101, it can be held by at least N - 1 sliders 121, improving the positioning stability. Among them, if the two relief grooves 105 at the two ends of each row of relief grooves 105 are both located at the ends of the positioning groove 101, the number of positioning portions 1011 is N - 1. If they are both close to the ends of the positioning groove 101 and spaced from the end faces, the number of positioning portions 1011 is N + 1. If one is located at the end of the positioning groove 101 and the other is close to the end of the positioning groove 101, the number of positioning portions 1011 is N.

[0058] In the illustrated embodiment, M is 4, N is 4, and H is 3. That is to say, 4 rows of relief grooves 105 are defined on the base plate 11. There are 4 relief grooves 105 in each row of relief grooves 105. Each row of relief grooves 105 corresponds to three positioning grooves 101. Each positioning groove 101 is divided into 5 positioning portions 1011 by the relief grooves 105 in the corresponding row. One mounting groove 102 is provided on each positioning portion 1011.

[0059] In some embodiments, please refer to Figure 6, the fixture further includes a control base 20. The control base 20 includes a control board 21. At least one positioning pin 211 is provided on the control board 21. The number of the positioning pins 211 is equal to the number of the sliders 121, and each positioning pin 211 corresponds to each slider 121 one by one. When each slider 121 is in the clamping position, when the control board 21 is buckled towards the second surface 1102 of the bottom plate 11, each positioning pin 211 can be inserted into the slot 1201 of the corresponding slider 121 through the corresponding operation groove 103. The control board 21 can move in the first direction to make each positioning pin 211 push the corresponding slider 121 to move to the avoidance position, and then move in the second direction to make each positioning pin 211 push the corresponding slider 121 to move to the clamping position. The first direction is opposite to the second direction. Wherein, when the control board 21 is buckled towards the bottom plate 11, the control board 21 can abut against the second surface 1102 of the bottom plate 11. In other embodiments, when the control board 21 is buckled towards the bottom plate 11, the control board 21 can also be spaced from the second surface 1102, which is not limited here.

[0060] Please refer to Figure 7 , in use, first place the control board 21 on the side of the second surface 1102 of the bottom plate 11 and make the positioning pins 211 face the bottom plate 11. At this time, each positioning pin 211 corresponds to an operation hole and a slider 121. Then buckle the control board 21 towards the bottom plate 11. During the buckling process, make each positioning pin 211 pass through the corresponding operation groove 103 and insert into the slot 1201 of the slider 121 located in the clamping position (as shown in Figure 7 (a)), then move the control board 21 in the first direction to make the positioning pin 211 push the slider 121 to move towards the avoidance position, and then insert the circuit board 90 into the positioning groove 101 (as shown in Figure 7 (b)), and then move the control board 21 in the second direction to make the slider 121 move towards the clamping position until the slider 121 clamps the circuit board 90 (as shown in Figure 7 (c)). In this way, the synchronous displacement of all the sliders 121 on the fixture is realized, and the operation efficiency is improved. Wherein, the movement of the control board 21 can be operated electrically or manually. After the slider 121 clamps the circuit board 90, the control board 21 can keep its position unchanged, or continuously apply a force towards the second direction to the slider 121. In this way, the slider 121 can continuously press the circuit board 90 through the positioning pin 211 and the first reset member 122 to improve the clamping force of the slider 121 on the circuit board 90, thereby improving the positioning stability of the fixture for the circuit board 90. Of course, after the slider 121 clamps the circuit board 90, the positioning pin 211 can also be withdrawn from the slot 1201 so that the slider 121 clamps the circuit board 90 only by the reset force of the first reset member 122, which is not limited here.

[0061] Optionally, both the first direction and the second direction are parallel to the sliding direction of the slider 121, so as to facilitate the slider 121 to slide relative to the positioning portion 1011. Of course, the first direction and the second direction may also form a certain angle with the sliding direction of the slider 121 in a plane perpendicular to the first surface 1101. At this time, when the control board 21 moves, the positioning pins 211 can move along the opening direction of the slot 1201 in the slot 1201.

[0062] In some embodiments, please refer to Figure 8 and Figure 9 , the control seat 20 further includes a control frame 22. The control board 21 is slidably connected to the control frame 22. The control board 21 can slide relative to the control frame 22 along the first direction to a first position, and can slide relative to the control frame 22 along the second direction to a second position. When the control board 21 is in the second position, the control frame 22 can be docked with the bottom plate 11, and each positioning pin 211 is inserted into the slot 1201 of the corresponding slider 121 through the corresponding operation slot 103. When the control board 21 slides to the first position, each positioning pin 211 can move the corresponding slider 121 to an avoidance position. In use, first move the control board 21 to the second position, then dock the control frame 22 with the bottom plate 11. At this time, the positioning pins 211 can be directly inserted into the slots 1201 of the corresponding sliders 121, and then move the control board 21 to the first position to facilitate the circuit board to be inserted into the positioning slot 101, and then move the control board 21 towards the second position until the slider 121 clamps the circuit board. The setting of the control frame 22 can position the position of the control board 21, so that the control board 21 and the bottom plate 11 can be quickly aligned, improving the operation efficiency.

[0063] Optionally, please refer to Figure 8 and Figure 9 , the control frame 22 is provided with a chute 201. The control board 21 and the bottom plate 11 can both be square. Based on this, the chute 201 has a first groove side wall 2011, a second groove side wall 2012, a third groove side wall 2013 and a fourth groove side wall 2014 that are sequentially connected end to end. The first groove side wall 2011 is parallel to the third groove side wall 2013, and the second groove side wall 2012 and the fourth groove side wall 2014 may or may not be parallel. The control board 21 is slidably connected to the first groove side wall 2011 and the third groove side wall 2013, and the first groove side wall 2011 and the third groove side wall 2013 can limit the separation of the control board 21 from the control frame 22. When the control board 21 is close to the second groove side wall 2012 and far from the fourth groove side wall 2014, it is in the second position. When the control board 21 is close to the fourth groove side wall 2014 and far from the second groove side wall 2012, it is in the first position. The setting of the chute 201 realizes the sliding connection between the control board 21 and the control frame 22.

[0064] Of course, when the control board 21 is in the second position, it can also abut against the second groove side wall 2012, and when in the first position, it can also abut against the fourth groove side wall 2014. The second groove side wall 2012 and the fourth groove side wall 2014 can limit the position of the control board 21. There is no limitation here.

[0065] Optionally, please refer to Figure 8 and Figure 9 , the control base 20 further includes a second reset member 23 respectively connecting the control board 21 and the control frame 22. The second reset member 23 can apply a reset force to the control board 21 to slide towards the second position when the control board 21 moves towards the first position. The control base 20 applies a reset force to the control board 21 through the second reset member 23, so that the control board 21 can automatically reset to the second position when the control base 20 is not in use, or directly remove the external force on the control board 21 after the circuit board is inserted into the positioning groove 101, so that the control board 21 automatically slides towards the first position under the action of the reset force of the second reset member 23, and the slider 121 clamps the circuit board through the reset force of the first reset member 122 and the reset force of the second reset member 23.

[0066] Optionally, the second reset member 23 can be a spring. The two ends of the spring are respectively connected to the control board 21 and the fourth groove side wall 2014, and are always in a compressed state, and the reset force is an elastic force. Among them, multiple second reset members 23 can be provided, and the multiple second reset members 23 are arranged at intervals along the length direction of the fourth groove side wall 2014, so that the control board 21 is evenly stressed everywhere. Of course, the two ends of the spring can also be respectively connected to the control board 21 and the second groove side wall 2012, and are always in a stretched state.

[0067] In other embodiments, the second reset member 23 can also be a magnetic structure. The magnetic structure includes two magnetic members. The two magnetic members are respectively connected to the control board 21 and the fourth groove side wall 2014, and there is a magnetic repulsion force between the two magnetic members. At this time, the reset force is this magnetic repulsion force, and there is no limitation here.

[0068] In some embodiments, please refer to Figure 8 and Figure 9 , the control base 20 further includes a connecting plate 24 and an eccentric wrench 25. The connecting plate 24 is connected to the side of the control board 21 facing the fourth groove side wall 2014 and extends to the outer side of the control frame 22 facing away from the sliding groove 201. The eccentric wrench 25 is rotatably connected to the connecting plate 24 and abuts against the outer side of the control frame 22. The eccentric wrench 25 can drive the control board 21 to slide between the first position and the second position by rotation. In this way, by rotating the eccentric wrench 25, the connecting plate 24 can drive the control board 21 to slide in the sliding groove 201 to realize the control of the sliding of the control board 21.

[0069] Specifically, the eccentric wrench 25 includes a rotating portion 251 and a wrench portion 252 connected to the rotating portion 251. The rotating portion 251 is rotatably connected to the connecting plate 24. The rotating shaft 2501 of the rotating portion 251 is in an eccentric position. The circumferential side surface of the rotating portion 251 spirally extends around the rotating shaft 2501 and has an opening area 25a closer to the rotating shaft 2501 and a closing area 25b farther from the rotating shaft 2501. The opening area 25a and the closing area 25b are respectively located on opposite sides of the rotating shaft 2501. When the wrench portion 252 is on one side of the first groove side wall 2011, the opening area 25a abuts against the outer side surface of the control frame 22. At this time, the rotating shaft 2501 is close to the control frame 22, and the control plate 21 is in the second position. When the wrench portion 252 is on one side of the third groove side wall 2013, the closing area 25b abuts against the outer side surface of the control frame 22. At this time, the rotating shaft 2501 is far from the control frame 22, and the control plate 21 is in the first position. During use, the wrench portion 252 can be first rotated to one side of the first groove side wall 2011, then the control frame 22 is butted against the bottom plate 11, then the wrench portion 252 is rotated so that the wrench portion 252 rotates to one side of the third groove side wall 2013, then the circuit board is inserted into the positioning groove 101, and then the wrench portion 252 is rotated back towards one side of the first groove side wall 2011 until the slider 121 clamps the circuit board.

[0070] Optionally, a connection hole penetrating through to the outer side surface of the control frame 22 is provided on the fourth groove side wall 2014, and the connecting plate 24 is inserted through the connection hole. The connection hole can guide and limit the connecting plate 24.

[0071] Optionally, please refer to Figure 8 and Figure 9 , to prevent wear on the outer side surface of the control frame 22, an anti-wear pad 26 is also provided between the rotating portion 251 and the outer side surface of the control frame 22. The anti-wear pad 26 can be made of a smooth and wear-resistant material.

[0072] In some embodiments, please refer to Figure 8 and Figure 9 , a first limiting structure is provided on the bottom plate 11, and a second limiting structure 202 is provided on the control frame 22. The second limiting structure 202 can be docked with the first limiting structure when the control plate 21 is buckled towards the second surface 1102 of the bottom plate 11. In this way, the fixture realizes the rapid alignment of the bottom plate 11 and the control frame 22 through the docking of the first limiting structure and the second limiting structure 202.

[0073] Optionally, the first limiting structure includes a plurality of limiting grooves 2021 provided on the control frame 22, and the second limiting structure includes a plurality of limiting blocks provided on the second surface 1102 of the bottom plate 11, the limiting blocks are adapted to the limiting grooves 2021, and when the control frame 22 is buckled toward the bottom plate 11, the limiting blocks can be inserted into the limiting grooves 2021, thereby achieving docking of the control frame 22 with the bottom plate 11. In the illustrated embodiment, four limiting grooves 2021 are provided, and are respectively located at the four corners of the slide groove 201.

[0074] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for the purpose of explaining the principles of the present invention, and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementation methods of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A clamp for a base plate, characterized in that: Including the base, the base includes: A bottom plate, having a first surface and a second surface facing each other, the bottom plate is provided with at least one positioning groove on the first surface, the positioning groove is used to insert the plate, the width of the notch of the positioning groove is greater than the width of the plate, the positioning groove is provided with at least one mounting groove on the groove side wall in the width direction thereof, the bottom plate is provided with at least one operating groove on the second surface, each of the operating grooves is connected to the groove side wall of the mounting groove; A positioning assembly includes at least one positioning mechanism. Each of the mounting grooves is provided with a positioning mechanism. The positioning mechanism includes a slider and a first reset member. The slider can move between an avoidance position close to the groove bottom of the mounting groove and a clamping position away from the groove bottom of the mounting groove. The first reset member is connected between the slider and the base plate and is used to apply a reset force to the slider to move it away from the groove bottom of the mounting groove. When the slider moves between the avoidance position and the clamping position, the slider is always at least partially exposed at the groove bottom of the operating groove.

2. The clamp according to claim 1, characterized in that A plurality of mounting grooves are provided on the groove side wall of each of the positioning grooves, and the plurality of mounting grooves are all located on the same groove side wall of the corresponding positioning groove. A slot is provided on the slider, and when the slider moves between the avoidance position and the clamping position, the slot is always connected to the operating groove.

3. The clamp according to claim 1, characterized in that The slot width of the positioning slot is greater than the slot bottom width of the positioning slot.

4. The clamp according to claim 1, characterized in that The clamp also has N avoidance grooves on the first surface, the width of the avoidance groove is greater than the width of the positioning groove, and the positioning groove passes through two opposite groove side walls of at least one of the avoidance grooves in its own length direction, and N is a natural number greater than or equal to 1.

5. The clamp according to claim 4, characterized in that There are multiple positioning grooves, and the multiple positioning grooves are arranged in sequence along the width direction of the positioning groove. Each positioning groove passes through N avoidance grooves, N is greater than or equal to 2, and the N avoidance grooves divide the positioning groove into at least N-1 positioning parts in the length direction of the positioning groove, and each positioning part is provided with at least one installation groove.

6. The clamp according to claim 2, characterized in that The clamp also includes a control seat, which includes a control board. The control board is provided with at least one positioning pin, the number of the positioning pins is equal to the number of the sliders, and each positioning pin corresponds to each slider one by one. When each slider is in the clamping position, the control board can be engaged with the second surface of the base plate so that each positioning pin is inserted into the slot of the corresponding slider through the corresponding operating groove. The control board can move in a first direction to enable each positioning pin to push the corresponding slider to the avoidance position, and then move in a second direction to enable each positioning pin to push the corresponding slider to the clamping position. The first direction is opposite to the second direction.

7. The clamp according to claim 6, characterized in that The control seat also includes a control frame, and the control board is slidably connected to the control frame. The control board can slide to a first position along a first direction relative to the control frame, and can slide to a second position along a second direction relative to the control frame. When the control board is in the second position, the control frame can dock with the base plate, and each positioning pin is inserted into the slot of the corresponding slider through the corresponding operating groove. When the control board slides to the first position, each positioning pin can move the corresponding slider to the avoidance position.

8. The clamp according to claim 7, characterized in that The control frame is provided with a slide groove, and the slide groove has a first groove side wall, a second groove side wall, a third groove side wall and a fourth groove side wall which are connected end to end in sequence. The control plate is slidably connected to the first groove side wall and the third groove side wall. When the control plate abuts against the second groove side wall and is spaced from the fourth groove side wall, the control plate is in the second position. When the control plate abuts against the fourth groove side wall and is spaced from the second groove side wall, the control plate is in the first position. The control seat also includes a second reset member respectively connected to the control plate and the control frame, and the second reset member can apply a reset force to the control plate to slide toward the second position when the control plate moves toward the first position.

9. The clamp according to claim 8, characterized in that The control seat also includes a connecting plate and an eccentric wrench. The connecting plate is connected to a side of the control plate facing the side wall of the fourth slot and extends to an outer side of the control frame facing away from the slide slot. The eccentric wrench is rotatably connected to the connecting plate and abuts against an outer side of the control frame. The eccentric wrench can drive the control plate to slide between the first position and the second position by rotating.

10. The clamp according to claim 7, characterized in that The bottom plate is provided with a first limiting structure, and the control frame is provided with a second limiting structure, and the second limiting structure can be connected with the first limiting structure when the control plate is buckled toward the second surface of the base.

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