Clamp

Abstract

The utility model provides a clamp, and relates to the technical field of lithium battery baking. The clamp comprises a clamping mechanism and a driving mechanism. The clamping mechanism comprises an elastic piece and two clamping jaws, the two clamping jaws are rotatably matched, and the two clamping jaws jointly define a clamping space with the adjustable size; each clamping jaw is provided with a protrusion, and the protrusions are located in the clamping space and used for being matched with the grooves in a clamped mode. The elastic piece is connected with at least one of the two clamping jaws and used for enabling the clamping jaws to have the tendency of rotating in the direction of reducing the clamping space. The driving mechanism is matched with the clamping mechanism and used for overcoming the elastic force of the elastic piece and driving the clamping jaw to rotate in the direction of increasing the clamping space. When the clamp runs, the probability that a battery or other parts fall off in the clamping process can be reduced, the clamping stability and reliability are improved, and damage to the battery or other parts in the clamping process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery baking, in particular to a clamp. Background Art

[0002] In the prior art, the method of clamping batteries or other parts is often to clamp them with a cylinder clamp, which has a simple structure, low cost and is relatively economical. For example, when using a cylinder clamp to clamp a cylindrical battery, the cylinder clamp drives two clamps close to each other and uses the friction between the clamps and the battery surface to clamp the battery. In order to clamp the battery firmly and prevent it from falling, it is usually necessary to design a larger clamping force. However, excessive clamping force will cause problems such as battery extrusion deformation or scratching of the battery surface. At the same time, if the power is suddenly cut off or the air source is interrupted during the operation of the cylinder clamp, the cylinder clamp will loosen, causing the battery or other parts to fall, resulting in unnecessary losses. Utility Model Content

[0003] The purpose of the utility model is to provide a clamp, which can reduce the probability of a battery or other parts falling during the clamping process, improve the stability and reliability of the clamping, and also reduce the damage to the battery or other parts during the clamping process.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In a first aspect, the utility model provides a clamp for clamping a workpiece having a groove on its outer peripheral surface, the clamp comprising:

[0006] A clamping mechanism and a driving mechanism, wherein the clamping mechanism comprises an elastic member and two clamping jaws, wherein the two clamping jaws are rotatably matched, and the two clamping jaws jointly define a clamping space of adjustable size; each of the clamping jaws is provided with a protrusion, which is located in the clamping space and is used for engaging with the groove; the elastic member is connected to at least one of the two clamping jaws, and is used for making the clamping jaw have a tendency to rotate in a direction of reducing the clamping space;

[0007] The driving mechanism cooperates with the clamping mechanism to overcome the elastic force of the elastic member and drive the clamping claw to rotate in a direction of increasing the clamping space.

[0008] Based on the above scheme, the elastic member cooperates with the two clamping jaws at the same time to drive the two clamping jaws to move synchronously, and the two clamping jaws are subjected to balanced force, which can improve the stability of clamping and achieve good clamping effect. At the same time, an elastic member controls the movement of the two clamping jaws, which can reduce the number of parts and save costs, and can also improve the compactness of the overall structure, making the overall volume small, occupying less space, and facilitating equipment.

[0009] In an optional embodiment, the clamping mechanism also includes a mounting block, and each of the clamping jaws can be rotatably mounted on the mounting block; the elastic member is simultaneously connected to the two clamping jaws so that the two clamping jaws have a tendency to rotate in a direction to reduce the clamping space.

[0010] Based on the above scheme, by setting the mounting block, the two clamping jaws are rotatably matched with the mounting block, the installation is convenient, the two clamping jaws are positioned by the mounting block, the positions of the two clamping jaws are stable, and the rotation is smooth.

[0011] In an optional embodiment, each of the clamping jaws has a driving end and a free end that are relatively arranged, the clamping space is formed on the side of the free end of the clamping jaw, and the elastic member is used to make the two driving ends have a rotational tendency to approach each other; the driving mechanism is used to cooperate with the two driving ends at the same time, driving the two driving ends to approach each other while making the two free ends move away from each other.

[0012] Based on the above scheme, the two clamping jaws have a spacing, which is convenient for assembly, and the control method of the two clamping jaws is simple, and the operation is stable and reliable.

[0013] In an optional embodiment, the clamping mechanism also includes two positioning pins, which are respectively located on the outside of the two clamping jaws; each of the clamping jaws is provided with an assembly hole, and the two ends of the elastic member respectively pass through the assembly holes on the two clamping jaws and are connected to the corresponding positioning pins.

[0014] Based on the above scheme, during installation, one end of the elastic member passes through the assembly hole on one of the clamping jaws and is connected to the corresponding positioning pin, and the other end of the elastic member passes through the assembly hole on the other clamping jaw and is connected to the corresponding positioning pin. The position where the elastic member is connected to the positioning pin is located outside the clamping jaw, which is not easily blocked and is directly exposed, making it easy to disassemble and assemble. The positioning pin is separated from the clamping jaw, and the two are processed independently, which has low processing cost and low replacement cost.

[0015] In an optional embodiment, a positioning groove is provided on the outer side surface of each of the clamping jaws, and the positioning pin is clamped in the positioning groove.

[0016] Based on the above scheme, the positioning pin is pressed into the positioning groove when the elastic force of the elastic part is small, the positioning pin and the clamping claw cooperate tightly, the two are firmly combined, the positioning pin and the elastic part are not easy to separate, the elastic part has a good positioning effect, and can provide long-lasting elastic force.

[0017] In an optional embodiment, the clamping mechanism further includes a limit block, the limit block is connected to the mounting block, and the limit block is used to abut against the clamping claw to limit the rotation angle of the clamping claw in the direction of reducing the clamping space.

[0018] Based on the above scheme, due to the action of the elastic member, the two jaws have a rotation tendency to keep the clamping space in a normally closed state, that is, the two jaws always have a state of clamping the battery and other parts. In the process of the elastic member driving the jaws to rotate and clamp the battery and other parts, the jaws can abut against the limit block, so that part of the elastic force applied by the elastic member on the jaws is offset by the limit block, which can reduce the clamping force of the jaws. While the jaws can stably clamp the battery and other parts, it avoids excessive clamping force applied by the jaws to damage the battery and other parts.

[0019] In an optional embodiment, the driving mechanism includes a frame, a telescopic module and a driving block, the mounting block is connected to the frame, the telescopic module is installed on the frame, the driving block is connected to the telescopic end of the telescopic module, and the telescopic module is used to drive the driving block to rise and fall so that the driving block abuts against the clamping claw, thereby utilizing the driving block to overcome the elastic force of the elastic member and drive the clamping claw to rotate in the direction of increasing the clamping space.

[0020] Based on the above solution, the driving mechanism has a simple structure, is convenient for use with the clamping mechanism, and the two are easy to assemble and have low manufacturing cost.

[0021] In an optional embodiment, the driving block is provided with a driving inclined surface, and the driving inclined surface is used to abut against the clamping jaw when the driving block is close to the clamping jaw, so that the clamping jaw has a tendency to rotate in a direction to increase the clamping space.

[0022] Based on the above solution, the clamping claw is driven to move by the driving inclined surface of the driving block, which has a simple structure and is easy to operate.

[0023] In an optional embodiment, a plurality of the clamping mechanisms are provided, and the plurality of the clamping mechanisms cooperate with the frame, and the driving mechanism is used to drive the plurality of the clamping mechanisms to move synchronously at the same time.

[0024] Based on the above solution, a telescopic module can simultaneously drive multiple clamping mechanisms to move synchronously, realizing one-to-many grasping and greatly reducing operating costs.

[0025] In an optional embodiment, the driving mechanism also includes a pressure plate, the telescopic end of the telescopic module is connected to the pressure plate, there are multiple driving blocks, and the multiple driving blocks are all installed on the pressure plate, and the multiple driving blocks respectively correspond one-to-one with the multiple clamping mechanisms.

[0026] Based on the above solution, the plurality of driving blocks are positioned by the pressure plate, and the relative positions of the plurality of driving blocks are stable, which facilitates the coordinated use of the plurality of driving blocks with the plurality of clamping mechanisms.

[0027] The beneficial effects of the embodiments of the utility model are:

[0028] In summary, this embodiment provides a clamp for clamping parts such as batteries, for example, a cylindrical battery with an annular groove on the outer circumference. When in use, the driving mechanism is used to overcome the elastic force of the elastic member to open the clamping space, so that the size of the clamping space is increased, and the entire clamp can be driven down by a two-dimensional or three-dimensional mobile platform, so that the clamping space is located above the cylindrical battery to be clamped, and the protrusion in the clamping space is basically aligned with the groove on the outer circumference of the cylindrical battery, and the driving mechanism is continued to be operated to cancel the external force that overcomes the elastic force of the elastic member. Under the action of the elastic member, the two clamps are close to each other, the clamping space is reduced, the protrusion is clamped in the groove, and the clamp is in contact with the outer circumference of the cylindrical battery. In this way, the cylindrical battery is clamped by two clamps. Under the elastic force of the elastic member, the two clamps are always in a closed state of clamping the cylindrical battery, and the combination of the protrusion and the groove greatly improves the stability of the cylindrical battery during the clamping process, and the cylindrical battery is not easy to fall off, which is safe and reliable. Since the cooperation between the protrusions and the grooves plays a major role in preventing the battery from falling off, the friction between the clamping jaws and the cylindrical battery can be reduced, thereby reducing the probability of the clamping jaws damaging the cylindrical battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is an exploded schematic diagram of the clamping mechanism of an embodiment of the utility model;

[0031] Figure 2 A schematic diagram of the use of the clamp of the embodiment of the utility model;

[0032] Figure 3 A schematic structural diagram of a clamp according to an embodiment of the utility model from one perspective;

[0033] Figure 4 It is an exploded schematic diagram of the angle of an embodiment of the utility model;

[0034] Figure 5 It is an exploded schematic diagram of the driving mechanism of an embodiment of the utility model;

[0035] Figure 6 A schematic diagram of a limit block according to an embodiment of the present utility model;

[0036] Figure 7 It is a schematic diagram of another viewing angle of the clamp of the embodiment of the utility model.

[0037] icon:

[0038] 001-first direction; 002-second direction; 003-cylindrical battery; 031-groove; 100-clamping mechanism; 101-clamping space; 110-elastic member; 111-drawing hook; 120-clamping claw; 121-first assembly hole; 122-second assembly hole; 123-positioning groove; 124-driving end; 125-free end; 126-protrusion; 130-mounting block; 131-assembly groove; 140-rotating shaft; 150-positioning pin; 160-limiting block ;161-limiting hole;1611-middle hole section;1612-side hole section;1613-abutment surface;170-fixing pin;180-fixing screw;200-driving mechanism;210-frame;211-top plate;212-bottom plate;213-connecting column;220-telescopic module;230-driving block;231-driving groove;232-driving inclined surface;240-pressing plate;250-limiting column;260-guide assembly;261-guide sleeve;262-guide rod. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0043] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the prior art, a cylinder clamp is used to clamp the cylindrical battery 003. In order to improve the clamping stability, the clamping force between the cylinder clamp and the cylindrical battery 003 is relatively large, which can easily damage the cylindrical battery 003. At the same time, in order to clamp the battery, the gas source is always in a supply state. When encountering emergencies such as power outages or gas source interruptions during the clamping process, the clamping force of the cylinder clamp disappears, and the cylindrical battery 003 is easy to fall from the cylinder clamp, resulting in poor safety.

[0046] In view of this, the designer provides a clamp that can not only reduce the probability of damage to batteries and other parts when clamping batteries, but also improve the stability of the clamping process and prevent the battery from falling.

[0047] Please combine Figure 1It should be noted that the clamp can clamp a variety of parts. In this embodiment, a cylindrical battery 003 is used as an example for explanation. The outer circumference of the cylindrical battery 003 is provided with an annular groove 031. During the clamping process, the clamp can cooperate with the groove 031 to improve the stability of the clamping. Of course, in other embodiments, the outer circumference of the cylindrical battery 003 can be provided with only one pair of grooves 031, or multiple pairs of grooves 031 arranged at intervals, which will not be described in detail here.

[0048] Please combine Figure 1-Figure 3 In this embodiment, the clamp includes a clamping mechanism 100 and a driving mechanism 200. The clamping mechanism 100 includes an elastic member 110 and two clamping jaws 120, the two clamping jaws 120 are rotatably matched, and the two clamping jaws 120 jointly define a clamping space 101 of adjustable size; each clamping jaw 120 is provided with a protrusion 126, the protrusion 126 is located in the clamping space 101 and is used to engage with the groove 031; the elastic member 110 is connected to at least one of the two clamping jaws 120, and is used to make the clamping jaw 120 have a tendency to rotate in the direction of reducing the clamping space 101, so that the clamp of this embodiment is in a normally closed state. The driving mechanism 200 cooperates with the clamping mechanism 100, and is used to overcome the elastic force of the elastic member 110 and drive the clamping jaw 120 to rotate in the direction of increasing the clamping space 101.

[0049] Based on the above description, the working principle of the clamp provided in this embodiment is as follows:

[0050] Please combine Figure 2When in use, the driving mechanism 200 is used to overcome the elastic force of the elastic member 110 to open the clamping space 101, so that the size of the clamping space 101 is increased. The two-dimensional or three-dimensional mobile platform can be used to drive the entire clamp to descend, so that the clamping space 101 is located above the cylindrical battery 003 to be clamped, and the protrusion 126 in the clamping space 101 is basically aligned with the groove 031 on the outer circumferential surface of the cylindrical battery 003. The driving mechanism 200 is continued to be operated to cancel the external force that overcomes the elastic force of the elastic member 110. Under the action of the elastic member 110, the two clamping jaws 120 are close to each other, the clamping space 101 is reduced, and the protrusion 126 is basically aligned with the groove 031 on the outer circumferential surface of the cylindrical battery 003. 126 is clamped in the groove 031, and the clamping jaws 120 are in contact with the outer peripheral surface of the cylindrical battery 003. In this way, the cylindrical battery 003 is clamped by the two clamping jaws 120. Under the elastic force of the elastic member 110, the two clamping jaws 120 are always in a closed state of clamping the cylindrical battery 003, and the stability of the cylindrical battery 003 during the clamping process is greatly improved by the cooperation of the protrusion 126 and the groove 031. The cylindrical battery 003 is not easy to fall off, which is safe and reliable, and the shape of the cylindrical battery 003 is not easy to change during the transfer process, which is convenient for the subsequent processing of the cylindrical battery 003. In addition, since the cooperation of the protrusion 126 and the groove 031 plays a major role in preventing falling off, the friction between the clamping jaws 120 and the cylindrical battery 003 can be reduced, thereby reducing the probability of the clamping jaws 120 damaging the cylindrical battery 003.

[0051] The details of the angle of the embodiment of the present application are described below by way of example.

[0052] Please combine Figure 3 and Figure 4 In this embodiment, optionally, the clamp includes multiple groups of clamping mechanisms 100 and a driving mechanism 200 that cooperates with the multiple groups of clamping mechanisms at the same time. In this way, the multiple groups of clamping mechanisms 100 can be driven to move synchronously through one driving mechanism 200, and multiple cylindrical batteries 003 can be clamped and released at the same time, with high operating efficiency.

[0053] In this embodiment, optionally, in order to facilitate processing and manufacturing, the structures of multiple groups of clamping mechanisms 100 are set to be the same. In this embodiment, in order to avoid repeated description, the structure of one group of clamping mechanisms 100 is taken as an example for description.

[0054] Please combine Figure 1 and Figure 2Optionally, the clamping mechanism 100 includes an elastic member 110, two clamping claws 120, a mounting block 130, two rotating shafts 140, two positioning pins 150 and a limit block 160. The elastic member 110 can be configured as a tension spring, and hooks 111 are provided at both ends of the elastic member 110 in the length direction. Each clamping jaw 120 is provided with a first assembly hole 121, a second assembly hole 122 and a positioning groove 123. The axes of the first assembly hole 121 and the second assembly hole 122 are vertically arranged. A rotating shaft 140 is passed through the first assembly hole 121. The positioning groove 123 is located at one end of the second assembly hole 122, and the positioning groove 123 is located on the outer side surface of the clamping jaw 120. That is, when the two clamping jaws 120 are matched, each clamping jaw 120 has an inner side surface close to each other and an outer side surface opposite to the inner side surface. The positioning groove 123 is located on the outer side surface. A positioning pin 150 is embedded in each positioning groove 123. It should be understood that the positioning groove 123 can be a strip groove, and the extension direction of the positioning grooves 123 on the two clamping jaws 120 can be consistent or set at an angle.

[0055] At the same time, two assembly grooves 131 are provided on the mounting block 130, and the two clamping jaws 120 are respectively located in the two assembly grooves 131, and the rotating shaft 140 on each clamping jaw 120 is rotatably matched with the mounting block 130, and each clamping jaw 120 has a driving end 124 and a free end 125 opposite to each other in its extension direction, the driving end 124 is located above the mounting block 130, and the free end 125 is located below the mounting block 130. The part of the clamping jaw 120 located below the mounting block 130 defines a clamping space 101. When it is necessary to clamp the cylindrical battery 003, the two free ends 125 are opened away from each other, and the clamping jaw 120 descends, so that the top of the cylindrical battery 003 enters the clamping space 101 from between the two free ends 125, and then the elastic force of the elastic member 110 is used to rotate the two clamping jaws 120 closer to clamp the cylindrical battery 003. After the two clamping jaws 120 are installed, the second assembly hole 122 is located below the mounting block 130, that is, the second assembly hole 122 is connected to the clamping space 101, and the two clamping jaws 120 have a spacing on the axis of the second assembly hole 122. The two ends of the elastic member 110 are respectively inserted into the second assembly holes 122 of the two clamping jaws 120, and one end of each elastic member 110 is hooked with the corresponding positioning pin 150 on the outer side of the clamping jaw 120. In this way, the elastic member 110 is in a stretched state, and the elastic member 110 has a tendency to drive the free ends 125 of the two clamping jaws 120 to rotate inwardly, and correspondingly, the two driving ends 124 have a tendency to rotate outwardly. Since the elastic member 110 is connected to the clamping jaw 120 through the positioning pin 150, and the two clamping jaws 120 rely on one elastic member 110 to provide elastic force, the assembly is convenient, the replacement of the elastic member 110 is convenient, and the force of the two clamping jaws 120 is balanced, and the clamping is stable.

[0056] Please combine Figure 4 , Figure 6 and Figure 7 Each mounting block 130 corresponds to a limiting block 160, and each limiting block 160 is provided with a limiting hole 161, and the limiting hole 161 is set as a variable diameter hole. The limiting hole 161 includes a middle hole section 1611 and two side hole sections 1612 located on opposite sides of the middle hole section 1611, and the two side hole sections 1612 are connected to the middle hole section 1611. The middle hole section 1611 and the two side hole sections 1612 are both rectangular, and the widths of the two side hole sections 1612 are the same and are both smaller than the width of the middle hole section 1611, that is, each side hole section 1612 forms a stepped hole shape with the middle hole section 1611, and abutting surfaces 1613 are formed at the connection between each side hole section 1612 and the middle hole section 1611, and the abutting surfaces 1613 are used to abut with the clamping jaw 120 to limit the position of the clamping jaw 120. Specifically, the two clamping jaws 120 are both inserted into the middle hole section 1611 and the driving end 124 extends out of the middle hole section 1611. Each clamping jaw 120 can abut against the corresponding abutting surface 1613, so that the rotation angle of the clamping jaw 120 is limited by the abutting surface 1613. In other words, due to the action of the elastic member 110, the free ends 125 of the two clamping jaws 120 have a tendency to rotate inwards and approach each other, and at the same time, the driving ends 124 of the two clamping jaws 120 have a tendency to rotate outwards and away from each other. When the driving end 124 rotates outwards, the driving end 124 contacts the abutting surface 1613, and the outward rotation angle of the driving end 124 is limited, thereby limiting the inward rotation angle of the free end 125, thereby reducing the clamping force of the clamping jaw 120. Under the premise that the clamping jaw 120 can stably clamp the cylindrical battery 003, it is prevented that the clamping force applied by the clamping jaw 120 is too large to damage the cylindrical battery 003.

[0057] In other embodiments, the clamping mechanism 100 may further include a fixing pin 170 and a fixing screw 180. The number of the fixing pins 170 may be two. The two fixing pins 170 are both plugged into the mounting block 130 and arranged in parallel. The two fixing pins 170 protrude from the top surface of the mounting block 130. The fixing screws 180 are screwed onto the mounting block 130. The number of the fixing screws 180 is two. The two fixing screws 180 are respectively in contact with the two rotating shafts 140 to limit the position of the rotating shaft 140 on the mounting block 130 and prevent the rotating shaft 140 from slipping out of the mounting block 130 and the clamping jaw 120.

[0058] Please combine Figure 3-Figure 5In this embodiment, optionally, the driving mechanism 200 includes a frame 210, a telescopic module 220, a plurality of driving blocks 230, a pressure plate 240, four limiting columns 250 and two sets of guide components 260. The frame 210 includes a top plate 211, a bottom plate 212 and four connecting columns 213. The top plate 211 and the bottom plate 212 are arranged in parallel and spaced apart. The two ends of the four connecting columns 213 are fixedly connected to the top plate 211 and the bottom plate 212 respectively. The mounting block 130 is located on the bottom surface of the bottom plate 212. The two fixing pins 170 on the mounting block 130 are interference fit with the bottom plate 212. The limit block 160 is fastened to the top surface of the bottom plate 212 by fixing screws 180. Correspondingly, avoidance holes for the clamping jaws 120 to pass through are provided on the bottom plate 212. The number of the avoidance holes is consistent with the number of the clamping mechanisms 100. The two clamping jaws 120 of each clamping mechanism 100 can pass through the corresponding avoidance holes and extend out of the limit holes 161.

[0059] Please combine Figure 5 The telescopic module 220 can be a cylinder, and the telescopic module 220 is fixed on the top plate 211, and the telescopic end of the telescopic module 220 faces downward. Multiple driving blocks 230 are installed on the pressing plate 240, and the pressing plate 240 is connected to the telescopic end of the telescopic module 220. The number of driving blocks 230 is consistent with the number of clamping mechanisms 100. The multiple driving blocks 230 are respectively matched with the multiple clamping mechanisms 100 in a one-to-one correspondence. The telescopic module 220 can drive the pressing plate 240 to rise and fall, thereby driving all driving blocks 230 to rise and fall. Each driving block 230 can cooperate with the two clamping claws 120 of the corresponding clamping mechanism 100, so that when the driving block 230 descends and approaches the clamping claw 120, the driving end 124 of the clamping claw 120 is driven to move, so that the free end 125 of the clamping claw 120 rotates in a direction away from each other, thereby increasing the size of the clamping space 101. At the same time, the pressing plate 240 is slidably matched with the top plate 211 through two sets of guide assemblies 260, and the pressing plate 240 drives the multiple driving blocks 230 to move synchronously, which is convenient to operate. During assembly, the pressing plate 240 is located between the top plate 211 and the bottom plate 212, and the pressing plate 240, the top plate 211 and the bottom plate 212 are arranged in parallel. The guide sleeve 261 of the guide assembly 260 is installed on the pressing plate 240, and the guide rod 262 of the guide assembly 260 is fixedly installed on at least one of the top plate 211 and the bottom plate 212. The guide rod 262 is inserted into the guide sleeve 261 and the two can be slidably matched. In this way, when the telescopic module 220 is extended and retracted, it can drive the pressing plate 240 to rise and fall, and the pressing plate 240 is guided by the guide assembly 260, and the operation is stable and reliable.

[0060] At the same time, the four limit columns 250 are all protruding from the top surface of the bottom plate 212. When the pressure plate 240 descends, the pressure plate 240 can abut against the limit columns 250, thereby limiting the descending position of the pressure plate 240, thereby controlling the descending position of the driving block 230, and finally controlling the opening angle of the free end 125 of the clamp 120. By controlling the opening angle of the free end 125, the cylindrical battery 003 can be clamped or released to save energy.

[0061] Please combine Figure 2 and Figure 7 Optionally, the driving block 230 is provided with a driving groove 231, and the driving groove 231 has two opposite groove walls, and the two groove walls are arranged at an acute angle. Each groove wall can be called a driving inclined surface 232, and the distance between the two driving inclined surfaces 232 gradually decreases in the direction from the groove mouth of the driving groove 231 to the groove bottom. When the driving block 230 descends, the two groove walls of the driving block 230 respectively enter the two side hole sections 1612 of the limiting hole 161, and the side hole sections 1612 provide space for the driving block 230 to descend and play a role in guiding the driving block 230. When the two driving inclined surfaces 232 respectively abut against the driving ends 124 of the two clamping jaws 120, the driving inclined surfaces 232 can drive the two driving ends 124 to rotate in the direction of approaching each other, thereby causing the two free ends 125 to rotate in the direction away from each other, and the clamping space 101 is opened, which can not only enable the clamping mechanism 100 to release the cylindrical battery 003, but also facilitate clamping the cylindrical battery 003. The elastic force of the elastic member 110 is overcome by lowering the driving block 230, and the operation is convenient. The position of the clamping jaw 120 is limited by the driving groove 231, so that the driving end 124 of the clamping jaw 120 is always in the driving groove 231, which is convenient for operation.

[0062] In this embodiment, it should be noted that the number of the clamping mechanisms 100 may be twelve groups, and correspondingly, the number of the driving blocks 230 is twelve, and each driving block 230 drives one clamping mechanism 100 .

[0063] The clamp provided in this embodiment, please combine Figure 2When the driving block 230 descends, the left clamping jaw 120 rotates in the first direction 001 driven by the driving inclined surface 232, and the right clamping jaw 120 rotates in the second direction 002 opposite to the first direction 001 driven by the driving inclined surface 232, so that the free end 125 of the left clamping jaw 120 rotates in the first direction 001, and the free end 125 of the right clamping jaw 120 rotates in the second direction 002, and the two clamping jaws 120 cooperate to increase the clamping space 101 and release the clamped cylindrical battery 003. Similarly, when the driving block 230 rises, the left clamping jaw 120 rotates in the second direction 002 under the action of the elastic member 110, and the right clamping jaw 120 rotates in the first direction 001 under the action of the elastic member 110, and the two clamping jaws 120 cooperate to reduce the clamping space 101, so that the cylindrical battery 003 located in the clamping space 101 can be clamped.

[0064] Because under the action of the elastic member 110, the two clamping jaws 120 are always in a state of reducing the clamping space 101, that is, the clamp is always in a normally closed state, and at the same time, the protrusion 126 on the clamping jaw 120 is matched to ensure that the protrusion 126 and the groove 031 are always in a clamping state, which greatly improves the reliability of the clamp in the process of clamping the cylindrical battery 003, and the cylindrical battery 003 is not easy to fall, and the safety is high. In addition, the anti-falling of the cylindrical battery 003 is mainly achieved by the protrusion 126 and the groove 031, and the clamping jaw 120 mainly provides the clamping force to prevent the battery from shaking. In this way, compared with the prior art, the external force applied by the two clamping jaws 120 on the surface of the cylindrical battery 003 can be reduced, and the probability of the clamping jaw 120 damaging the cylindrical battery 003 is reduced.

[0065] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A clamp for clamping a workpiece having a groove (031) on its outer peripheral surface, characterized in that: The fixture comprises: A clamping mechanism (100) and a driving mechanism (200), wherein the clamping mechanism (100) comprises an elastic member (110) and two clamping jaws (120), wherein the two clamping jaws (120) are rotatably matched, and the two clamping jaws (120) jointly define a clamping space (101) of adjustable size; each of the clamping jaws (120) is provided with a protrusion (126), wherein the protrusion (126) is located in the clamping space (101) and is used for engaging with the groove (031); the elastic member (110) is connected to at least one of the two clamping jaws (120) and is used for making the clamping jaw (120) have a tendency to rotate in a direction of reducing the clamping space (101); The driving mechanism (200) cooperates with the clamping mechanism (100) to overcome the elastic force of the elastic member (110) and drive the clamping claw (120) to rotate in a direction to increase the clamping space (101).

2. The clamp according to claim 1, characterized in that: The clamping mechanism (100) further comprises a mounting block (130), and each of the clamping jaws (120) is rotatably mounted on the mounting block (130); the elastic member (110) is simultaneously connected to the two clamping jaws (120), so that the two clamping jaws (120) have a tendency to rotate in a direction of reducing the clamping space (101).

3. The clamp according to claim 2, characterized in that: Each of the clamping jaws (120) has a driving end (124) and a free end (125) that are arranged opposite to each other. The clamping space (101) is formed on the side of the clamping jaw (120) where the free end (125) is located. The elastic member (110) is used to make the two driving ends (124) have a rotation tendency to approach each other. The driving mechanism (200) is used to cooperate with the two driving ends (124) at the same time, driving the two driving ends (124) to approach each other while making the two free ends (125) move away from each other.

4. The clamp according to claim 3, characterized in that: The clamping mechanism (100) further comprises two positioning pins (150), wherein the two positioning pins (150) are respectively located on the outside of the two clamping jaws (120); each of the clamping jaws (120) is provided with an assembly hole, and the two ends of the elastic member (110) respectively pass through the assembly holes on the two clamping jaws (120) and are connected to the corresponding positioning pins (150).

5. The clamp according to claim 4, characterized in that: A positioning groove (123) is provided on the outer side surface of each clamping jaw (120), and the positioning pin (150) is clamped in the positioning groove (123).

6. The clamp according to claim 2, characterized in that: The clamping mechanism (100) further comprises a limit block (160), the limit block (160) being connected to the mounting block (130), the limit block (160) being used to abut against the clamping jaw (120) to limit the angle of rotation of the clamping jaw (120) in a direction of reducing the clamping space (101).

7. The clamp according to claim 2, characterized in that: The driving mechanism (200) comprises a frame (210), a telescopic module (220) and a driving block (230); the mounting block (130) is connected to the frame (210); the telescopic module (220) is mounted on the frame (210); the driving block (230) is connected to the telescopic end of the telescopic module (220); the telescopic module (220) is used to drive the driving block (230) to rise and fall, so that the driving block (230) abuts against the clamping claw (120), thereby utilizing the driving block (230) to overcome the elastic force of the elastic member (110) and drive the clamping claw (120) to rotate in a direction of increasing the clamping space (101).

8. The clamp according to claim 7, characterized in that: The driving block (230) is provided with a driving inclined surface (232), and the driving inclined surface (232) is used to abut against the clamping jaw (120) when the driving block (230) is close to the clamping jaw (120), so that the clamping jaw (120) has a tendency to rotate in a direction to increase the clamping space (101).

9. The clamp according to claim 7, characterized in that: A plurality of the clamping mechanisms (100) are provided, and the plurality of the clamping mechanisms (100) are all matched with the frame (210), and the driving mechanism (200) is used to drive the plurality of the clamping mechanisms (100) to move synchronously at the same time.

10. The clamp according to claim 9, characterized in that: The driving mechanism (200) further comprises a pressing plate (240), the telescopic end of the telescopic module (220) being connected to the pressing plate (240), the number of the driving blocks (230) being multiple, the multiple driving blocks (230) being all mounted on the pressing plate (240), and the multiple driving blocks (230) respectively correspondingly cooperating with the multiple clamping mechanisms (100) one by one.

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