Clamp

Abstract

The invention relates to a clamp. The clamp comprises a clamping jaw assembly, a first transmission assembly, a second transmission assembly, a third transmission assembly and a driving assembly. The first transmission assembly can rotate around the axis of the first transmission assembly. The second transmission assembly can move relative to the first transmission assembly along the axis X of the first transmission assembly when the first transmission assembly rotates. The same ends of all the third transmission assemblies are connected with the second transmission assembly in a matched mode, the ends, away from the second transmission assembly, of all the third transmission assemblies are each connected with a clamping jaw assembly in a matched mode, and all the third transmission assemblies are used for clamping the second transmission assembly when the second transmission assembly moves along the axis X of the first transmission part. And the corresponding clamping jaw assemblies are driven to move in the direction close to or away from the axis of the first transmission assembly. The first transmission assembly, the second transmission assembly, the third transmission assembly and the driving assembly are matched with one another, synchronous movement of all the clamping jaw assemblies can be achieved, clamping or loosening of the circuit board is achieved, and therefore the automation degree and the production efficiency of the clamp are effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a clamp. Background Art

[0002] At present, judging from the development of the market situation, circuit boards are one of the core components in the manufacturing and maintenance of various electronic devices, which are widely used in energy storage power systems, electric vehicles and other fields.

[0003] With the rapid development of electronic technology, the integration of circuit boards is getting higher and higher, and the circuits are becoming more and more sophisticated. Correspondingly, the requirements for circuit board clamping are becoming increasingly stringent.

[0004] In the prior art, the clamps used to clamp the circuit boards are relatively simple and crude, and may only use simple clips or pressing blocks to fix the circuit boards, which is cumbersome to operate and has low production efficiency. Summary of the invention

[0005] Based on this, it is necessary to provide a clamp to solve the problem that the clamp currently used to clamp circuit boards is cumbersome to operate and has low production efficiency.

[0006] A clamp, comprising:

[0007] at least two jaw assemblies;

[0008] A first transmission assembly capable of being controlled to rotate around its own axis;

[0009] a second transmission assembly, movably connected to the first transmission assembly, and capable of moving relative to the first transmission assembly along the axis of the first transmission assembly when the first transmission assembly rotates and driven by the first transmission assembly;

[0010] At least two third transmission assemblies, all of which are arranged around the axis of the first transmission assembly, and the same end of all of which is connected to the second transmission assembly, and one end of all of which is away from the second transmission assembly is correspondingly connected to a clamping jaw assembly, and all of which are used to drive the correspondingly connected clamping jaw assembly to move toward or away from the axis of the first transmission assembly when the second transmission assembly moves along the axis of the first transmission member; and

[0011] The driving assembly is used to drive the first transmission assembly to rotate around its own axis.

[0012] In one embodiment, the driving assembly includes a driving member, a sliding member, a first guide rail and a rack, the sliding member is slidably connected to the first guide rail, the driving member is transmission-connected to the sliding member and is used to drive the sliding member to move along the first guide rail, and the rack is connected to the sliding member and extends in the same direction as the first guide rail;

[0013] The first transmission assembly includes a first transmission member and a gear. The gear is sleeved on one end of the first transmission member along its own axis. The gear is meshed with the rack. The second transmission assembly is matched with one end of the first transmission member away from the gear.

[0014] In one embodiment, it further comprises a base, wherein the base is spaced below the first transmission assembly along the axis of the first transmission assembly, and the first guide rail is disposed on the base;

[0015] The first transmission assembly further includes a bearing, and the bearing is connected between the end of the first transmission member on which the gear is sleeved and the base.

[0016] In one embodiment, the first transmission member is a ball screw; the second transmission assembly includes a mounting plate and a mounting member, the mounting plate is provided with a mounting hole, the first transmission member is inserted into the mounting hole, and the mounting plate is connected to the first transmission member through the mounting member.

[0017] In one embodiment, the third transmission assembly includes a first connecting rod, a second connecting rod, a first rotating shaft and a second rotating shaft, the second connecting rod is spaced apart from the second transmission assembly along the axis direction of the first rotating assembly, and a clamping claw assembly is connected to the side of the second connecting rod away from the second transmission assembly; one end of the first connecting rod is movably connected to the second transmission assembly through the first rotating shaft, and the other end of the first connecting rod is movably connected to the second rotating shaft through the second rotating shaft;

[0018] Among them, when the second transmission component moves relative to the first transmission component along the axis of the first transmission component, the first connecting rod can rotate relative to the second transmission component and the second connecting rod under the drive of the second transmission component, and can drive the second connecting rod and the clamping jaw assembly to move in a direction close to or away from the axis of the first transmission component.

[0019] In one embodiment, the third transmission assembly further includes a second guide rail, and the second connecting rod is slidably connected to the second guide rail.

[0020] In one embodiment, it further includes a bearing platform, which is spaced above the first transmission component along the axis of the first transmission component, and the surface of the bearing platform facing away from the first transmission component is a bearing surface, which is used to place the part to be clamped.

[0021] In one embodiment, at least two avoidance grooves are formed on the bearing surface and are recessed along the axis of the first transmission component, and at least part of the bottom wall of each avoidance groove is recessed along the axis of the first transmission component to form a penetrating avoidance hole;

[0022] Each of the avoidance holes is used for the corresponding first connecting rod to be movably inserted, the bottom wall of each of the avoidance grooves is equipped with the corresponding second guide rail, the second connecting rod is movably arranged in the corresponding avoidance groove, and the clamping jaw assembly at least partially extends out of the corresponding avoidance groove.

[0023] In one of the embodiments, at least two positioning portions are protruded from the carrying surface, and all of the positioning portions are arranged in an array and together form a positioning space for positioning the piece to be clamped.

[0024] In one embodiment, each of the clamping jaw assemblies includes a clamping jaw, a connecting member and a buffer member, one end of the connecting member is matched with the corresponding third transmission assembly, the other end of the connecting member is matched with the clamping jaw, and the buffer member is matched with the clamping jaw.

[0025] The above-mentioned clamp includes at least two clamping jaw assemblies, a first transmission assembly, a second transmission assembly, at least two third transmission assemblies and a driving assembly. The first transmission assembly can be controlled to rotate around its own axis. The second transmission assembly is movably connected to the first transmission assembly, and can move relative to the first transmission assembly along the axis of the first transmission assembly when the first transmission assembly rotates. All third transmission assemblies are arranged around the second transmission assembly along the circumference of the first transmission assembly, and the same end of all third transmission assemblies is connected to the second transmission assembly. All third transmission assemblies are correspondingly connected to one end away from the second transmission assembly. All third transmission assemblies are used to drive the correspondingly connected clamping jaw assembly to move in the direction close to or away from the axis of the first transmission assembly when the second transmission assembly moves along the axis of the first transmission member. The driving assembly is used to drive the first transmission assembly to rotate around its own axis. When all the clamping jaw assemblies are driven by the corresponding third transmission assembly to synchronously move toward the direction close to the axis of the first transmission assembly and clamp the circuit board, each clamping jaw assembly can apply equal clamping force to the circuit board, thereby reducing the probability of damage to the circuit board due to uneven force. At the same time, the first transmission assembly, the second transmission assembly, the third transmission assembly and the driving assembly cooperate with each other to achieve synchronous movement of all the clamping jaw assemblies to clamp or release the circuit board, thereby effectively improving the automation of the fixture and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the clamp in this application at a first viewing angle.

[0027] Figure 2 This is a schematic diagram of the structure of the clamp in this application at a second viewing angle.

[0028] Figure 3 It is a structural schematic diagram of the assembly of the clamping jaw assembly, the first transmission assembly, the second transmission assembly, the third transmission assembly, the driving assembly and the base in the first viewing angle in the present application.

[0029] Figure 4 It is a structural schematic diagram of the assembly of the clamping jaw assembly, the first transmission assembly, the second transmission assembly, the third transmission assembly, the driving assembly and the base at a second viewing angle in the present application.

[0030] Figure 5 It is a structural schematic diagram of the clamping assembly, the first transmission assembly, the second transmission assembly, the third transmission assembly, the driving assembly and the base assembly in the present application at a third viewing angle.

[0031] Reference numerals

[0032] Clamp 100;

[0033] Clamping jaw assembly 10; clamping jaw 101; connecting member 102; buffer member 103;

[0034] First transmission assembly 11; first transmission member 111; gear 112; axis X;

[0035] Second transmission assembly 12; mounting plate 121; mounting hole 122; mounting member 123;

[0036] The third transmission assembly 13; the first connecting rod 131; the second connecting rod 132; the first rotating shaft 133; the second rotating shaft 134; the second guide rail 135;

[0037] Driving assembly 14; driving member 141; sliding member 142; first guide rail 143; rack 144;

[0038] The bearing platform 15; the bearing surface 151; the avoidance groove 152; the avoidance hole 153; the positioning portion 154;

[0039] Base 16. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axis X", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 cannot be understood as a limitation on the present application.

[0042] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0046] At present, judging from the development of the market situation, circuit boards are one of the core components in the manufacturing and maintenance of various electronic devices, which are widely used in energy storage power systems, electric vehicles and other fields.

[0047] With the rapid development of electronic technology, the integration of circuit boards is getting higher and higher, and the circuits are becoming more and more sophisticated. Correspondingly, the requirements for circuit board clamping are becoming increasingly stringent.

[0048] In the prior art, the clamps used to clamp the circuit boards are relatively simple and crude, and may only use simple clips or pressing blocks to fix the circuit boards, which is cumbersome to operate and has low production efficiency.

[0049] Based on the above considerations, in order to solve the problem that the current clamps used to clamp circuit boards are cumbersome to operate and have low production efficiency, a clamp 100 is provided in one or more embodiments of the present application. By utilizing the cooperation between the clamping jaw assembly 10, the first transmission assembly 11, the second transmission assembly 12, the third transmission assembly 13 and the drive assembly 14, the degree of automation of the clamp 100 can be effectively improved, thereby improving production efficiency.

[0050] Specifically, see Figures 1 to 3 The clamp 100 includes at least two clamping jaw assemblies 10, a first transmission assembly 11, a second transmission assembly 12, at least two third transmission assemblies 13 and a driving assembly 14. The first transmission assembly 11 can be controlled to rotate around its own axis X. The second transmission assembly 12 is movably connected to the first transmission assembly 11, and can move relative to the first transmission assembly 11 along the axis X of the first transmission assembly 11 when the first transmission assembly 11 rotates. All third transmission assemblies 13 are arranged along the axis X around the first transmission assembly 11, and the same end of all third transmission assemblies 13 is connected to the second transmission assembly 12, and the other end of all third transmission assemblies 13 away from the second transmission assembly 12 is correspondingly connected with a clamping jaw assembly 10, and all third transmission assemblies 13 are used to drive the correspondingly connected clamping jaw assembly 10 to move toward or away from the axis X of the first transmission assembly 11 when the second transmission assembly 12 moves along the axis X of the first transmission member 111 under the drive of the second transmission assembly 12. The driving assembly 14 is used to drive the first transmission assembly 11 to rotate around its own axis X.

[0051] During the specific operation of the clamp 100, the first transmission assembly 11 is driven to rotate around its own axis X by the driving assembly 14. While the first transmission assembly 11 rotates around its own axis X, it can drive the second transmission assembly 12 to move relative to itself along the axis X of the first transmission assembly 11. Further, while the second transmission assembly 12 moves relative to the first transmission assembly 11 along the axis X of the first transmission assembly 11, it can drive all the third transmission assemblies 13 and the corresponding clamping claw assemblies 10 on each third transmission assembly 13 to move simultaneously toward or away from the axis X of the first transmission assembly 11, so as to achieve the clamping or release of the circuit board.

[0052] It can be understood that when all the clamping jaw assemblies 10 are driven by the corresponding third transmission assembly 13 to synchronously move toward the direction of the axis X close to the first transmission assembly 11 and clamp the circuit board, each clamping jaw assembly 10 can have an equal clamping force on the circuit board, thereby reducing the probability of damage to the circuit board due to uneven force. At the same time, the first transmission assembly 11, the second transmission assembly 12, the third transmission assembly 13 and the driving assembly 14 cooperate with each other to achieve the synchronous movement of all the clamping jaw assemblies 10 to clamp or release the circuit board, thereby effectively improving the automation of the fixture 100 and improving production efficiency.

[0053] In some embodiments, the driving assembly 14 includes a driving member 141, a sliding member 142, a first guide rail 143 and a rack 144. The sliding member 142 is slidably connected to the first guide rail 143. The driving member 141 is fixedly connected to the sliding member 142 and is used to drive the sliding member 142 to move along the first guide rail 143. The rack 144 is fixedly connected to the sliding member 142 and extends in the same direction as the first guide rail 143. The first guide rail 143 is used to limit the moving track of the sliding member 142 when the driving member 141 drives the sliding member 142 to move, so as to ensure that the sliding member 142 can drive the rack 144 to move linearly along the first guide rail 143.

[0054] It should be noted that the driving member 141 includes but is not limited to a cylinder, a motor, etc. For example, see Figure 1 and Figure 3 In the present application, the driving member 141 is a cylinder.

[0055] The sliding member 142 includes but is not limited to a slider, a roller, etc. For example, see Figure 3 and Figure 4 In the present application, the sliding member 142 is a sliding block.

[0056] The first transmission assembly 11 includes a first transmission member 111 and a gear 112. The gear 112 is sleeved on one end of the first transmission member 111 along its own axis X, that is, the gear 112 is coaxially arranged with the first transmission member 111. The gear 112 is meshed with the rack 144. The second transmission assembly 12 is matched with one end of the first transmission member 111 away from the gear 112.

[0057] It can be understood that when the sliding member 142 drives the rack 144 to move linearly along the first guide rail 143, the rack 144 can be ensured to mesh with the gear 112 for transmission, and then the first transmission member 111 can be driven to rotate around its own axis X through the gear 112. Further, while the first transmission assembly 11 rotates around its own axis X, it can drive the second transmission assembly 12 to move relative to itself along its own axis X. Thereafter, while the second transmission assembly 12 moves relative to the first transmission assembly 11 along the axis X of the first transmission assembly 11, it can drive all the third transmission assemblies 13 and the corresponding clamping claw assemblies 10 on each third transmission assembly 13 to move simultaneously toward or away from the axis X of the first transmission assembly 11, so as to achieve the clamping or release of the circuit board.

[0058] In some embodiments, see Figure 3 and Figure 5 The fixture 100 further includes a base 16, which is spaced below the first transmission assembly 11 along the axis X of the first transmission assembly 11, and the first guide rail 143 is disposed on the base 16. The first transmission assembly 11 further includes a bearing, which is connected between the end of the first transmission member 111 sleeved with the gear 112 and the base 16.

[0059] It is understandable that the first transmission assembly 11 can be fixedly connected to the base 16 through the bearing to ensure the stability of its own assembly. At the same time, the bearing can rotate the first transmission assembly 11 around its own axis X relative to the base 16 under the meshing transmission of the gear 112 and the rack 144.

[0060] In some embodiments, see Figure 3 and Figure 4 , the first transmission member 111 is a ball screw. It should be noted that the ball screw is a transmission element on tool machinery and precision machinery, and its main function is to convert rotational motion into linear motion. In the present application, the ball screw can rotate around its own axis X under the meshing transmission of the rack 144 and the gear 112, and can further convert the rotational motion into linear motion, thereby driving the second transmission component 12 to move relative to itself along its own axis X. Generally, the ball screw is composed of a screw, a nut, a steel ball, a pre-loaded sheet, a reverser, and a dust collector.

[0061] See also Figure 3 and Figure 4 The second transmission assembly 12 includes a mounting plate 121 and a mounting member 123 . The mounting plate 121 is provided with a mounting hole 122 . The first transmission member 111 is inserted into the mounting hole 122 . The mounting plate 121 is connected to the first transmission member 111 through the mounting member 123 .

[0062] In some embodiments, see Figure 3 and Figure 5The third transmission assembly 13 includes a first connecting rod 131, a second connecting rod 132, a first rotating shaft 133 and a second rotating shaft 134. The second connecting rod 132 is spaced apart from the second transmission assembly 12 along the axis X direction of the first rotating assembly, and a clamping claw assembly 10 is connected to the side of the second connecting rod 132 away from the second transmission assembly 12. One end of the first connecting rod 131 is movably connected to the second transmission assembly 12 through the first rotating shaft 133, and the other end of the first connecting rod 131 is movably connected to the second rotating shaft 134 through the second rotating shaft 134.

[0063] When the second transmission component 12 moves relative to the first transmission component 11 along the axis X of the first transmission component 11, the first connecting rod 131 can rotate relative to the second transmission component 12 and the second connecting rod 132 under the drive of the second transmission component 12, and can drive the second connecting rod 132 and the clamping jaw component 10 to move in a direction close to or away from the axis X of the first transmission component 11.

[0064] It can be understood that, for ease of understanding, the first connecting rod 131 is defined as having a first end and a second end that are relatively arranged, the first end is movably connected to the second transmission assembly 12 through the first rotating shaft 133, and the second end is movably connected to the second connecting rod 132 through the second rotating shaft 134.

[0065] Specifically, see Figure 3 and Figure 5 , driven by the first transmission assembly 11, when the second transmission assembly 12 moves up and down relative to the first transmission assembly 11 along the axis X of the first transmission assembly 11, the second transmission assembly 12 will drive the first end and the second end of the first connecting rod 131 to rotate around the first rotating shaft 133 and the second rotating shaft 134 respectively, so as to adjust the inclination degree of the first connecting rod 131, and the movement distance of the second transmission assembly 12 can be supplemented by the folding or stretching of the first connecting rod 131. At the same time, the second end of the first connecting rod 131 rotates around the rotation fulcrum formed by the connection between the first end and the first rotating shaft 133, so as to move toward or away from the axis X of the first transmission assembly 11. In this way, the second end of the first connecting rod 131 can drive the second connecting rod 132 and the clamp 100 assembly assembled on the second connecting rod 132 to move synchronously toward or away from the axis X of the first transmission assembly 11, thereby achieving the clamping or release of the circuit board.

[0066] It should be further explained that the specific arrangement of the first connecting rod 131 is not limited. For example, the second end of the first connecting rod 131 is tilted relative to the first end toward the direction away from the axis X of the first transmission assembly 11, or the second end of the first connecting rod 131 is tilted relative to the first end toward the direction close to the axis X of the first transmission assembly 11. It is understandable that the specific arrangement of the first connecting rod 131 is different, and its movement mode during the transmission process will also be different. In the present application, the second end of the first connecting rod 131 is tilted relative to the first end toward the direction away from the axis X of the first transmission assembly 11 as an example for writing the embodiments.

[0067] Specifically, in the process of clamping the circuit board by the clamp 100, the driving member 141 drives the sliding member 142 and the rack 144 on the sliding member 142 to move forward along the first guide rail 143, and the rack 144 is meshed with the gear 112 to drive the first transmission member 111 to rotate forwardly around its own axis X. In this way, the second transmission component 12 will move downward relative to the first transmission component 11 along the axis X of the first transmission component 11 under the drive of the first transmission component 11, and the first end and the second end of the first connecting rod 131 can rotate around the first rotating shaft 133 and the second rotating shaft 134 respectively to reduce the inclination of the first connecting rod 131, so that the first connecting rod 131 stretches to make up for the downward movement distance of the second transmission component 12. At the same time, the second end of the first connecting rod 131 rotates around the rotation fulcrum formed by the connection between the first end and the first rotating shaft 133 to move toward the direction close to the axis X of the first transmission component 11. In this way, the second end of the first connecting rod 131 can drive the second connecting rod 132 and the clamp 100 assembly mounted on the second connecting rod 132 to move synchronously toward the direction close to the axis X of the first transmission assembly 11, thereby clamping the circuit board.

[0068] In the process of the clamp 100 loosening the circuit board, the driving member 141 drives the sliding member 142 and the rack 144 on the sliding member 142 to move straight backward along the first guide rail 143, and the rack 144 engages with the gear 112 to drive and drive the first transmission member 111 to rotate in the opposite direction around its own axis X. In this way, the second transmission component 12 will move upward relative to the first transmission component 11 along the axis X of the first transmission component 11 under the drive of the first transmission component 11, and the first end and the second end of the first connecting rod 131 can rotate around the first rotating shaft 133 and the second rotating shaft 134 respectively to increase the inclination of the first connecting rod 131, so that the first connecting rod 131 is folded to adapt to the upward movement distance of the second transmission component 12. At the same time, the second end of the first connecting rod 131 rotates around the rotation fulcrum formed by the connection between the first end and the first rotating shaft 133 to move in the direction away from the axis X of the first transmission component 11. In this way, the second end of the first connecting rod 131 can drive the second connecting rod 132 and the clamp 100 assembly mounted on the second connecting rod 132 to move synchronously in a direction away from the axis X of the first transmission assembly 11, thereby achieving the loosening of the circuit board.

[0069] In some embodiments, see Figure 2 and Figure 3 The third transmission assembly 13 also includes a second guide rail 135 , and the second connecting rod 132 is slidably connected to the second guide rail 135 .

[0070] It can be understood that the second guide rail 135 extends radially corresponding to the axis of the first transmission member 111. In this way, when the second connecting rod 132 moves toward or away from the axis X of the first transmission assembly 11 under the drive of the first connecting rod 131, the second guide rail 135 can limit the movement trajectory of the sliding member 142 to ensure that the second connecting rod 132 can drive the clamping jaw assembly 10 to move along the second guide rail 135.

[0071] In some embodiments, see Figure 2 and Figure 3 The fixture 100 also includes a bearing platform 15, which is spaced above the first transmission component 11 along the axis X of the first transmission component 11. The surface of the bearing platform 15 away from the first transmission component 11 is a bearing surface 151, and the bearing surface 151 is used to place the part to be clamped.

[0072] It is understandable that in the present application, the object to be clamped corresponds to a circuit board, but according to different application fields of the clamp 100, the object to be clamped may also correspond to other different structures.

[0073] In some embodiments, see Figure 1 and Figure 2At least two avoidance grooves 152 are formed on the bearing surface 151 and are recessed along the axis X of the first transmission assembly 11 . At least part of the bottom wall of each avoidance groove 152 is recessed along the axis X of the first transmission assembly 11 and is formed with a penetrating avoidance hole 153 .

[0074] Each avoidance hole 153 is used for the corresponding first connecting rod 131 to movably pass through, and the bottom wall of each avoidance groove 152 is equipped with a corresponding second guide rail 135. The second connecting rod 132 is movably set in the corresponding avoidance groove 152, and the clamping jaw assembly 10 at least partially extends out of the corresponding avoidance groove 152.

[0075] It can be understood that the avoidance groove 152 extends along the radial direction corresponding to the axis of the first transmission member 111, the second guide rail 135 is fixed to the bottom wall of the avoidance groove 152, and the second connecting rod 132 is slidably connected to the second guide rail 135 and can be controlled to move in the avoidance groove 152. The second end of the first connecting rod 131 extends into the avoidance groove 152 through the avoidance hole 153 and is connected to the second connecting rod 132 through the second rotating shaft 134.

[0076] In some embodiments, see Figure 1 and Figure 2 At least two positioning portions 154 are protruded from the bearing surface 151 , and all the positioning portions 154 are arranged in an array and together form a positioning space for positioning the piece to be clamped.

[0077] It can be understood that by placing the circuit board in the positioning space, the clamping jaw assembly 10 can be convenient for accurately clamping the circuit board, thereby improving the accuracy of subsequent processing and assembly, to ensure that the circuit board can be accurately in the predetermined position during the processing, testing or assembly process, and avoid quality problems such as poor connection and welding errors caused by position deviation.

[0078] It should be noted that the specific number and arrangement of the positioning parts 154 are not limited. For example, the number of the positioning parts 154 is two, and the two positioning parts 154 are arranged at intervals from each other. When the circuit board is placed in the positioning space formed by the interval between the two positioning parts 154, the two positioning parts 154 are respectively abutted against the diagonal corners of the circuit board to limit the position.

[0079] In some embodiments, see Figure 1 and Figure 3 Each clamping jaw assembly 10 includes a clamping jaw 101, a connecting member 102 and a buffer member 103. One end of the connecting member 102 is matched with the corresponding third transmission assembly 13, and the other end of the connecting member 102 is matched with the clamping jaw 101. The buffer member 103 is matched on the clamping jaw 101.

[0080] It is understandable that the buffer member 103 can reduce the impact of the clamping jaw 101 on the circuit board when the clamping jaw 101 abuts against the circuit board, thereby reducing the probability of damage to the circuit board.

[0081] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A clamp, characterized in that: include: at least two jaw assemblies; A first transmission assembly capable of being controlled to rotate around its own axis; a second transmission assembly, movably connected to the first transmission assembly, and capable of moving relative to the first transmission assembly along the axis of the first transmission assembly when the first transmission assembly rotates and driven by the first transmission assembly; At least two third transmission assemblies, all of which are arranged around the axis of the first transmission assembly, and the same end of all of which is connected to the second transmission assembly, and one end of all of which is away from the second transmission assembly is correspondingly connected to a clamping jaw assembly, and all of which are used to drive the correspondingly connected clamping jaw assembly to move toward or away from the axis of the first transmission assembly when the second transmission assembly moves along the axis of the first transmission member; and The driving assembly is used to drive the first transmission assembly to rotate around its own axis.

2. The clamp according to claim 1, characterized in that: The driving assembly includes a driving member, a sliding member, a first guide rail and a rack, wherein the sliding member is slidably connected to the first guide rail, the driving member is transmission-connected to the sliding member and is used to drive the sliding member to move along the first guide rail, and the rack is connected to the sliding member and extends in the same direction as the first guide rail; The first transmission assembly includes a first transmission member and a gear. The gear is sleeved on one end of the first transmission member along its own axis. The gear is meshed with the rack. The second transmission assembly is matched with one end of the first transmission member away from the gear.

3. The clamp according to claim 2, characterized in that: It also includes a base, which is spaced below the first transmission assembly along the axis of the first transmission assembly, and the first guide rail is arranged on the base; The first transmission assembly further includes a bearing, and the bearing is connected between the end of the first transmission member on which the gear is sleeved and the base.

4. The clamp according to claim 2, characterized in that: The first transmission member is a ball screw; the second transmission assembly includes a mounting plate and a mounting member, the mounting plate is provided with a mounting hole, the first transmission member is inserted into the mounting hole, and the mounting plate is connected to the first transmission member through the mounting member.

5. The clamp according to claim 1, characterized in that: The third transmission assembly includes a first connecting rod, a second connecting rod, a first rotating shaft and a second rotating shaft, the second connecting rod is spaced apart from the second transmission assembly along the axial direction of the first rotating assembly, and a clamping claw assembly is connected to the side of the second connecting rod away from the second transmission assembly; one end of the first connecting rod is movably connected to the second transmission assembly through the first rotating shaft, and the other end of the first connecting rod is movably connected to the second rotating shaft through the second rotating shaft; Among them, when the second transmission component moves relative to the first transmission component along the axis of the first transmission component, the first connecting rod can rotate relative to the second transmission component and the second connecting rod under the drive of the second transmission component, and can drive the second connecting rod and the clamping jaw assembly to move in a direction close to or away from the axis of the first transmission component.

6. The clamp according to claim 5, characterized in that: The third transmission assembly also includes a second guide rail, and the second connecting rod is slidably connected to the second guide rail.

7. The clamp according to claim 6, characterized in that It also includes a bearing platform, which is spaced above the first transmission component along the axis of the first transmission component. The surface of the bearing platform away from the first transmission component is a bearing surface, and the bearing surface is used to place the part to be clamped.

8. The clamp according to claim 7, characterized in that: At least two avoidance grooves are formed on the bearing surface and are recessed along the axis of the first transmission assembly. At least part of the bottom wall of each avoidance groove is recessed along the axis of the first transmission assembly to form a penetrating avoidance hole. Each of the avoidance holes is used for the corresponding first connecting rod to be movably inserted, the bottom wall of each of the avoidance grooves is equipped with the corresponding second guide rail, the second connecting rod is movably arranged in the corresponding avoidance groove, and the clamping jaw assembly at least partially extends out of the corresponding avoidance groove.

9. The clamp according to claim 7, characterized in that: At least two positioning parts are protruded from the bearing surface, and all the positioning parts are arranged in an array and are jointly surrounded to form a positioning space for positioning the part to be clamped.

10. The clamp according to claim 1, characterized in that Each of the clamping jaw assemblies comprises a clamping jaw, a connecting member and a buffer member, one end of the connecting member is matched with the corresponding third transmission assembly, the other end of the connecting member is matched with the clamping jaw, and the buffer member is matched on the clamping jaw.

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