Clamping and positioning device and flow battery detection and maintenance equipment

Abstract

According to the clamping and positioning device and the flow battery detection and maintenance equipment provided by the utility model, the clamping assembly is arranged on the bearing piece, so that when a flow reference battery is assembled and disassembled, a bolt on the flow battery is inserted into a clamping space between the fixed clamping piece and the movable clamping piece, and then the clamping assembly is assembled and disassembled; the driving mechanism is used for driving the movable clamping piece to be close to the fixed clamping piece, so that the fixed clamping piece and the movable clamping piece can tightly clamp and position the bolt, the rest parts and the bolt are subsequently assembled into an electric pile, positioning in the assembling process and fixing and rotation stopping of the bolt can be achieved, the bolt is effectively prevented from rotating along with a nut, and the assembly efficiency is improved. The assembly and disassembly of the liquid flow reference battery are facilitated, and the assembly and disassembly efficiency of the liquid flow reference battery is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrochemical energy storage, and particularly relates to a clamping and positioning device and a flow battery detection and maintenance device. Background Technique

[0002] Most flow reference batteries adopt a single-layer multi-layer structure. The single-layer multi-layer structure mainly includes a positive electrode material, a negative electrode material, a separator, a positive current collector frame, a negative current collector frame, etc. Commonly used positive and negative electrode materials include various sheet-shaped carbon materials such as bipolar plates and graphite felts. During the assembly process of the flow reference battery, it is generally necessary to clamp and position the components of the flow reference battery to ensure the assembly geometric and sealing requirements of the flow reference battery. Currently, it is usually relied on manual methods to position and clamp the flow reference battery, which not only has the problems of time-consuming and laborious assembly operations and low assembly efficiency, but also is difficult to ensure the assembly geometric and sealing requirements. In addition, the flow reference battery as a whole is fixedly connected together by bolts and nuts. Whether assembling or disassembling the flow reference battery, when screwing on or unscrewing the nut on the bolt, since it is difficult to fix and stop the rotation of the bolt manually, the bolt is likely to rotate together with the nut, and it is impossible to quickly screw on or unscrew the nut on the bolt, which brings inconvenience to the assembly and disassembly of the flow reference battery. Content of the Utility Model

[0003] Based on the above problems existing in the prior art, the purpose of the embodiment of the present utility model is to provide a clamping and positioning device to solve the problem that the bolt for tightly connecting the flow battery is difficult to be fixed and stopped from rotating manually in the prior art, resulting in the bolt being likely to rotate together with the nut, which is not convenient for the assembly and disassembly of the flow battery.

[0004] To achieve the above purpose, the technical solution adopted by the present utility model is: to provide a clamping and positioning device, including:

[0005] A base;

[0006] A carrier, arranged on the base;

[0007] A clamping assembly, including a fixed clamping member fixedly arranged on the carrier and a movable clamping member movably arranged on the carrier. A clamping space for inserting a bolt is formed between the fixed clamping member and the movable clamping member; and

[0008] A driving mechanism, the driving mechanism is connected to the movable clamping member, and the driving mechanism can drive the movable clamping member to approach or move away from the fixed clamping member, so that the clamping assembly clamps or loosens the bolt.

[0009] Furthermore, the clamping and positioning device further includes a wedge drive structure connecting the clamping assembly and the drive mechanism. The wedge drive structure includes a first wedge block fixedly arranged on the carrier, a second wedge block slidably arranged on the carrier, and a third wedge block arranged between the first wedge block and the second wedge block and capable of pushing the second wedge block away from the first wedge block. The second wedge block is connected to the movable clamping member, and the third wedge block is connected to the drive mechanism; the fixed clamping member, the movable clamping member, the second wedge block, and the first wedge block are arranged in sequence.

[0010] Furthermore, the cross-sections of the first wedge block and the second wedge block are right trapezoids, the cross-section of the third wedge block is an isosceles trapezoid, the first inclined surface of the third wedge block is in sliding contact with the inclined surface of the first wedge block, and the second inclined surface of the third wedge block is in sliding contact with the inclined surface of the second wedge block, so that when the drive mechanism drives the third wedge block to move in the vertical direction, the third wedge block can push the second wedge block to move horizontally.

[0011] Furthermore, the first wedge block and the second wedge block are connected by an elastic member; and / or, a first dovetail groove is provided on the inclined surface of the first wedge block, a first slider adapted to the first dovetail groove is provided on the first inclined surface of the third wedge block, and the first slider is slidably arranged in the first dovetail groove; and / or, a second dovetail groove is provided on the inclined surface of the second wedge block, a second slider adapted to the second dovetail groove is provided on the second inclined surface of the third wedge block, and the second slider is slidably arranged in the second dovetail groove.

[0012] Furthermore, the clamping and positioning device further includes a linkage rod, and the drive mechanism is arranged on the base; a guiding hole is provided on the carrier, the linkage rod is connected to the third wedge block and passes through the guiding hole to be connected to the drive mechanism, and the drive mechanism drives the linkage rod to move vertically.

[0013] Furthermore, the clamping and positioning device further includes a positioning assembly for positioning the side of the flow battery. At least two sets of the clamping assemblies are provided on the carrier, each set of the clamping assemblies includes at least two of the clamping assemblies. The positioning assembly includes a pair of first positioning members and second positioning members. The first positioning member is connected to the movable clamping member of a set of the clamping assemblies, the second positioning member is connected to the movable clamping member of another set of the clamping assemblies, and the movable clamping members of each clamping assembly are respectively connected to the drive mechanism.

[0014] Furthermore, the clamping and positioning device further includes a support seat for supporting the flow battery and a screw rod connected to the support seat. A threaded hole adapted to the screw rod is provided on the carrier, and the screw rod is connected in the threaded hole.

[0015] Further, a plurality of the clamping assemblies are provided on the carrier, the driving mechanism is arranged on the base, the driving mechanism includes a cylinder and a cylinder switch unit for controlling the operation of the cylinder, and the clamping and positioning device further includes a linkage member connected to the telescopic rod of the cylinder, and the movable clamping members of the clamping assemblies are respectively connected to the linkage member.

[0016] Further, a first arc-shaped groove is provided on one side surface of the fixed clamping member facing the movable clamping member, and a second arc-shaped groove matching the first arc-shaped groove is correspondingly provided on the movable clamping member, and the first arc-shaped groove and the second arc-shaped groove enclose a clamping space for inserting a bolt.

[0017] Further, an anti-slip structure is provided in the first arc-shaped groove and / or the second arc-shaped groove.

[0018] Another object of the embodiment of the present invention is to provide a liquid flow battery detection and maintenance device to solve the problem in the prior art that it is difficult to fix and prevent the rotation of the bolt for tightly connecting the liquid flow reference battery manually, resulting in the bolt being easily rotated together with the nut, which is not convenient for the assembly and disassembly of the liquid flow reference battery.

[0019] To achieve the above object, the technical solution adopted by the present invention is: to provide a liquid flow battery detection and maintenance device, including the clamping and positioning device provided in any one of the above embodiments.

[0020] One or more of the above technical solutions in the embodiment of the present invention, compared with the prior art, have at least one of the following beneficial effects:

[0021] In the clamping and positioning device and the liquid flow battery detection and maintenance device in the embodiment of the present invention, by providing clamping assemblies in the corresponding workpiece placement area on the carrier, when assembling and disassembling the liquid flow reference battery, only need to insert the bolt of the liquid flow reference battery into the clamping space between the fixed clamping member and the movable clamping member, and then only need to drive the movable clamping member to approach the fixed clamping member through the driving mechanism, so that the fixed clamping member and the movable clamping member can tightly clamp and position the bolt. Subsequently, assemble the remaining components with the bolt into a stack, which can realize the positioning during the assembly process and the fixed anti-rotation of the bolt, effectively preventing the bolt from rotating together with the nut, thereby facilitating the assembly and disassembly of the liquid flow reference battery and being beneficial to improving the efficiency of the assembly and disassembly of the liquid flow reference battery. In addition, since the bolt is clamped and positioned during the assembly, the assembly accuracy can be better guaranteed and the airtightness of the battery can be improved.

[0022] Moreover, during the assembly process of the flow battery, the present utility model uses the positioning component to perform hierarchical limiting on the flow reference battery, which is beneficial to improving the assembly accuracy of each layer of materials of the flow reference battery, enhancing the sealing performance of the assembly of each layer of materials of the flow reference battery, and avoiding the problem of frequent disassembly and assembly due to unqualified airtightness detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 Schematic three-dimensional structure diagram of the clamping and positioning device provided by the embodiment of the present utility model;

[0025] Figure 2 Assembly drawing of the clamping component and the carrier provided by the embodiment of the present utility model;

[0026] Figure 3 Assembly drawing of the clamping component and the wedge drive structure provided by the present utility model;

[0027] Figure 4 Assembly drawing of the wedge drive structure provided by the present utility model;

[0028] Figure 5 Schematic three-dimensional structure diagram of the positioning component provided by the embodiment of the present utility model;

[0029] Figure 6 Exploded view of the clamping component provided by the embodiment of the present utility model;

[0030] Figure 7 Structure diagram of the carrier and the drive mechanism provided by the embodiment of the present utility model;

[0031] Figure 8 Explosion diagram of the clamping and positioning device provided by the embodiment of the present utility model.

[0032] Among them, the reference numerals in the drawings are as follows:

[0033] 1 - Base; 2 - Carrier; 21 - First threaded hole; 22 - Guide hole;

[0034] 3 - Positioning component; 31 - First positioning member; 32 - Second positioning member;

[0035] 4 - Clamping component; 41 - Fixed clamping member; 411 - First arc groove; 42 - Movable clamping member; 421 - Second arc groove; 43 - Anti-slip structure;

[0036] 5 - Driving mechanism; 51 - Cylinder;

[0037] 6 - Wedge drive structure; 61 - First wedge block; 62 - Second wedge block; 63 - Third wedge block; 631 - First slider; 632 - Second slider;

[0038] 7 - Support base; 8 - Linkage; 9 - Liquid flow reference battery;

[0039] 10 - Bolt; 20 - Isolation column; 30 - Linkage rod. Specific embodiments

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0041] It should be noted that when an element is referred to as "connected to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, 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. In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can 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.

[0042] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appearing throughout the specification are not necessarily all referring to the same embodiment. Additionally, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0043] Please also refer to Figures 1 to 8 Figures 1 to 8 , a clamping and positioning device provided by an embodiment of the present utility model will be described below. The clamping and positioning device provided by the embodiment of the present utility model includes a base 1, a carrier 2, a clamping assembly 4 and a driving mechanism 5. The base 1 can be, but is not limited to, a bottom plate. The carrier 2 can be, but is not limited to, a plate-shaped carrier platform. The carrier 2 is disposed on the base 1 through a plurality of spacer columns 20. The clamping assembly 4 is disposed on the carrier 2 corresponding to the workpiece placement area on the carrier 2. The clamping assembly 4 includes a fixed clamping member 41 fixedly disposed on the carrier 2 and a movable clamping member 42 movably disposed on the carrier 2. A clamping space for inserting a bolt 10 is formed between the fixed clamping member 41 and the movable clamping member 42. The driving mechanism 5 is disposed on the base 1. The driving mechanism 5 is connected to the movable clamping member 42. The driving mechanism 5 can drive the movable clamping member 42 to approach or move away from the fixed clamping member 41. When the driving mechanism 5 drives the movable clamping member 42 to approach the fixed clamping member 41, the clamping space between the fixed clamping member 41 and the movable clamping member 42 gradually shrinks and can tightly clamp and position the bolt 10 for fastening the liquid flow reference battery 9. Thus, the bolt 10 can be clamped by the clamping assembly 4 to achieve fixed rotation prevention of the bolt 10, effectively preventing the bolt 10 from easily rotating together with the nut, thereby facilitating the assembly and disassembly of the liquid flow reference battery. When the driving mechanism 5 drives the movable clamping member 42 to move away from the fixed clamping member 41, the clamping space between the fixed clamping member 41 and the movable clamping member 42 gradually expands and can release the clamping and positioning effect on the bolt 10. Thus, the clamping assembly 4 can release the bolt 10. It should be noted that the liquid flow reference battery 9 mentioned in the embodiment of the present utility model can be, but is not limited to, a liquid flow reference battery.

[0044] Compared with the prior art, the clamping and positioning device provided by the embodiment of the present utility model is provided with a clamping assembly 4 on the carrier 2 corresponding to the workpiece placement area. When assembling and disassembling the liquid flow reference battery 9, after inserting the bolt 10 of the liquid flow reference battery 9 into the clamping space between the fixed clamping member 41 and the movable clamping member 42, only by driving the movable clamping member 42 to approach the fixed clamping member 41 through the driving mechanism 5, the fixed clamping member 41 and the movable clamping member 42 can tightly clamp and position the bolt 10 to achieve fixed rotation prevention of the bolt 10. Then, the stack components cooperating with the bolt can be assembled on the bolt 10 to complete the assembly of the entire stack, and it can prevent the bolt 10 from easily rotating together with the nut, thereby facilitating the assembly and disassembly of the liquid flow reference battery, being beneficial to improving the efficiency of assembling and disassembling the liquid flow reference battery 9. At the same time, since the bolt 10 is clamped and positioned during assembly, the assembly accuracy can be better guaranteed and the airtightness of the battery can be improved.

[0045] Please refer to in combination with Figure 2 、 Figure 3 andFigure 4 In some embodiments, the clamping and positioning device also includes a wedge-shaped transmission structure 6 that transmits and connects the clamping assembly 4 and the driving mechanism 5. The wedge-shaped transmission structure 6 includes a first wedge block 61 fixedly arranged on the carrier 2, a second wedge block 62 slidably arranged on the carrier 2, and a third wedge block 63 that can slide up and down in the vertical direction between the first wedge block 61 and the second wedge block 62. The second wedge block 62 is connected to the movable clamping member 42, and the third wedge block 63 is connected to the driving mechanism 5. When the driving mechanism 5 drives the third wedge block 63 to move downward in the vertical direction, the third wedge block 63 can push the second wedge block 62 to slide a distance in the direction away from the first wedge block 61 by squeezing the first wedge block 61 and the second wedge block 62. The fixed clamp 41, the movable clamp 42, the second wedge block 62, and the first wedge block 61 are arranged in sequence. When the second wedge block 62 moves in a direction away from the first wedge block 61, the second wedge block 62 can drive the movable clamp 42 to approach the fixed clamp 41, so that the fixed clamp 41 and the movable clamp 42 can clamp and position the bolt 10 tightly, so as to achieve the fixed anti-rotation of the bolt 10. It should be noted that in some other embodiments, when the driving mechanism 5 drives the third wedge block 63 to move upward in the vertical direction, the third wedge block 63 can also push the second wedge block 62 to slide a distance away from the first wedge block 61 by squeezing the first wedge block 61 and the second wedge block 62. In this process, the second wedge block 62 can drive the movable clamp 42 to approach the fixed clamp 41, so that the fixed clamp 41 and the movable clamp 42 can clamp and position the bolt 10 tightly, so as to achieve the fixed anti-rotation of the bolt 10. In addition, an elastic member is provided between the first wedge block 61 and the second wedge block 62, and the elastic member is stretched when the driving mechanism 5 drives the third wedge block 63. It should be noted that the clamping and positioning device also includes a linkage member 8 connected to the telescopic rod of the cylinder 51, and the third wedge blocks 63 of the plurality of wedge-shaped transmission structures 6 are respectively connected to the linkage member 8 through linkage rods 30, and the linkage member 8 can be but is not limited to a movable plate, and a guide hole 22 for guiding the linkage rod 30 to move axially is provided on the bearing member 2, and each linkage rod 30 is slidably inserted into the corresponding guide hole 22, and one end of each linkage rod 30 is threadedly connected to the linkage member 8, and the other end of each linkage rod 30 is threadedly connected to the corresponding third wedge block 63. When the driving mechanism 5 stops driving the third wedge block 63, the elastic force of the elastic member forces the second wedge block 62 to slide toward the first wedge block 61 until the second wedge block 62 and the third wedge block 63 return to their initial positions. At this time, the second wedge block 62 can drive the movable clamping member 42 away from the fixed clamping member 41, so that the bolt 10 of the clamping assembly 4 can be loosened.

[0046] Please refer to Figure 2 , Figure 3 andFigure 4 , in some of these embodiments, the cross-sections of the first wedge block 61 and the second wedge block 62 are right trapezoids, and the cross-section of the third wedge block 63 is an isosceles trapezoid. The first inclined surface of the third wedge block 63 is in sliding contact with the inclined surface of the first wedge block 61, and the second inclined surface of the third wedge block 63 is in sliding contact with the inclined surface of the second wedge block 62. When the driving mechanism 5 drives the third wedge block 63 to move in the vertical direction, the third wedge block 63 can push the second wedge block 62 to move laterally. In this embodiment, since the first wedge block 61 and the second wedge block 62 act on the third wedge block 63 in a one-way inclined wedge type expansion and clamping manner, the clamping force of the movable clamping member 42 cooperating with the fixed clamping member 41 on the bolt 10 can be effectively enhanced through the force increasing effect of the third wedge block 63, which is beneficial to improving the stability of the clamping and positioning of the clamping assembly 4 on the bolt 10, thereby effectively preventing the bolt 10 and the nut from rotating simultaneously.

[0047] Please refer to Figure 3 and Figure 4 , in some of these embodiments, a first dovetail groove is provided on the inclined surface of the first wedge block 61, and a first slider 631 adapted to the first dovetail groove is provided on the first inclined surface of the third wedge block 63. The first slider 631 is slidably disposed in the first dovetail groove. Through the sliding fit structure of the first slider 631 and the first dovetail groove, the third wedge block 63 is slidably assembled on the first wedge block 61, which is beneficial to enhancing the stable reliability of the expansion and clamping of the third wedge block 63 to increase the force.

[0048] Please refer to Figure 3 and Figure 4 , in some of these embodiments, a second dovetail groove is provided on the inclined surface of the second wedge block 62, and a second slider 632 adapted to the second dovetail groove is provided on the second inclined surface of the third wedge block 63. The second slider 632 is slidably disposed in the second dovetail groove. Through the sliding fit structure of the second slider 632 and the second dovetail groove, the third wedge block 63 is slidably assembled on the second wedge block 62, which is beneficial to enhancing the stable reliability of the expansion and clamping of the third wedge block 63 to increase the force.

[0049] Please refer to Figure 1 and Figure 5 , in some of these embodiments, the clamping and positioning device further includes a positioning assembly 3 for laterally positioning the side of the liquid flow reference battery 9. The positioning assembly 3 is disposed on the carrier 2 corresponding to the workpiece placement area on the carrier 2, so that the positioning assembly 3 can position the liquid flow reference battery 9 in the workpiece placement area on the carrier 2. Please refer to Figure 2 , Figure 3 and Figure 4, in some of these embodiments, at least two sets of clamping assemblies 4 are provided on the carrier 2, and each set of clamping assemblies 4 includes at least two clamping assemblies 4. Among them, when two sets of clamping assemblies 4 are provided on the carrier 2, the two sets of clamping assemblies 4 are correspondingly arranged on opposite sides of the workpiece placement area on the carrier 2. The positioning assembly 3 includes a pair of first positioning members 31 and second positioning members 32. The middle of the first positioning member 31 is connected to the movable clamping member 42 of one set of clamping assemblies 4, and the middle of the second positioning member 32 is connected to the movable clamping member 42 of the other set of clamping assemblies 4. The movable clamping members 42 of each clamping assembly 4 are respectively connected to the driving mechanism 5. While the driving mechanism 5 synchronously pushes each movable clamping member 42 towards the corresponding fixed clamping member 41, driven by the corresponding movable clamping member 42, the first positioning member 31 and the second positioning member 32 can approach and close to each other to achieve a surrounding-frame positioning of the liquid flow reference battery 9, which is beneficial to improving the positioning accuracy of the assembly of the liquid flow reference battery 9. In addition, after the assembly of the liquid flow reference battery 9 is completed, while the driving mechanism 5 synchronously pushes each movable clamping member 42 away from the corresponding fixed clamping member 41, driven by the corresponding movable clamping member 42, the first positioning member 31 and the second positioning member 32 can move away and separate from each other to release the surrounding-frame positioning of the liquid flow reference battery 9, facilitating the removal of the liquid flow reference battery 9 from the workpiece placement area of the carrier 2, which is beneficial to improving the assembly efficiency of the liquid flow reference battery 9. It should be noted that the first positioning member 31 is a frame-type positioning plate, the second positioning member 32 is a frame-type positioning plate matching the first positioning member 31, and when the first positioning member 31 and the second positioning member 32 are closed, they can form a surrounding-frame structure with a square cross-section.

[0050] During the assembly process of the liquid flow reference battery 9, by using the positioning assembly 3 to limit the layers of the liquid flow reference battery 9, the assembly accuracy of each layer of materials of the liquid flow reference battery 9 can be further improved, the sealing performance of the assembly of each layer of materials of the liquid flow reference battery 9 can be enhanced, and the problem of frequent disassembly and assembly due to unqualified airtightness detection can be avoided.

[0051] Please refer to Figure 2 and Figure 4 , in some of these embodiments, the clamping and positioning device further includes a support seat 7 for supporting the liquid flow reference battery 9 and a screw rod connected to the support seat 7. The support seat 7 is arranged at the central position of the workpiece placement area on the carrier 2, and the carrier 2 is provided with a threaded hole 21 that is threadedly engaged with the screw rod, and the screw rod is connected in the threaded hole 21. In this embodiment, when the liquid flow reference battery 9 is placed in the workpiece placement area of the carrier 2, the support seat 7 can support and position the liquid flow reference battery 9, so that the support seat 7 can cooperate with the positioning assembly 3 to perform overall limitation on the liquid flow reference battery 9. In addition, since the support seat 7 is connected to the carrier 2 through the screw rod, the height of the support seat 7 can be adjusted by the screw rod, which can well adapt to the assembly and disassembly of liquid flow reference batteries 9 of different models.

[0052] Please refer to Figure 7 and Figure 8 In some embodiments, a plurality of clamping assemblies 4 are provided on the carrier 2. The driving mechanism 5 includes a cylinder 51 and a cylinder switch unit for controlling the operation of the cylinder 51. The cylinder 51 control unit is connected to the cylinder 51, and the telescopic control of the piston rod of the cylinder 51 is realized through the cylinder 51 control unit. The cylinder 51 control unit is composed of a compressed air source, a pressure reducing valve, a ball valve, a quick exhaust valve, and a five-way three-position hand-operated valve connected in sequence. By rotating the five-way three-position hand-operated valve, the cylinder 51 can be controlled to drive the clamping assembly 4 to clamp and release the bolt 10. The cylinder 51 can be, but is not limited to, a thin rod cylinder 51. The clamping and positioning device further includes a linkage 8 connected to the telescopic rod of the cylinder 51, and the movable clamping members 42 of the respective clamping assemblies 4 are respectively connected to the linkage 8. The linkage 8 can be, but is not limited to, a movable plate. Since the movable clamping members 42 of the respective clamping assemblies 4 are connected to the telescopic rod of the cylinder 51 through the linkage 8, the movable clamping members 42 of the respective clamping assemblies 4 can be synchronously driven by one cylinder 51, so that a plurality of bolts 10 on the liquid flow reference battery 9 can be synchronously clamped and positioned at the same time, which is beneficial to improving the assembly and disassembly efficiency of the liquid flow reference battery 9, and the displacement of the cylinder telescopic rod can be controlled by the cylinder switch unit to adjust the clamping tightness of the clamping assembly on the bolt 10. It should be noted that the number of clamping assemblies 4 provided on the carrier 2 is the same as the number of bolts 10 on the liquid flow reference battery 9, and each clamping assembly 4 is provided on the carrier 2 at a position corresponding to the corresponding bolt 10 on the liquid flow reference battery 9, so that a plurality of clamping assemblies 4 can simultaneously perform synchronous clamping and positioning on a plurality of bolts 10 on the liquid flow reference battery 9. In addition, in some other embodiments, the driving mechanism 5 can also adopt linear actuators such as hydraulic cylinders, electric cylinders or electric push rods.

[0053] Please refer to Figure 2 、 Figure 3 and Figure 4 In some embodiments, a first arc-shaped groove 411 is provided on the side surface of the fixed clamping member 41 facing the movable clamping member 42, and a second arc-shaped groove 421 is correspondingly provided on the movable clamping member 42 and is matched with the first arc-shaped groove 411. The first arc-shaped groove 411 and the second arc-shaped groove 421 enclose a clamping space for inserting the bolt 10. In this embodiment, when the movable clamping member 42 approaches the fixed clamping member 41, the first arc-shaped groove 411 and the second arc-shaped groove 421 are closed to form a circular clamping space for clamping the bolt 10, which can increase the contact area between the clamping assembly 4 and the bolt 10, and is beneficial to avoiding local wear and damage of the threads on the bolt 10 while increasing the clamping force on the bolt 10.

[0054] Please refer to Figure 2 、 Figure 3 and Figure 4, in some embodiments, an anti-slip structure 43 is provided in the first arc-shaped groove 411, and an anti-slip structure 43 is provided in the second arc-shaped groove 421 to increase the friction between the clamping assembly 4 and the bolt 10, preventing the bolt 10 and the clamping assembly 4 from sliding and shifting due to excessive torque when screwing on or unscrewing the nut on the bolt 10. It should be noted that the anti-slip structure 43 can be, but is not limited to, anti-slip patterns or anti-slip isolation pads.

[0055] After the liquid flow reference battery is assembled, it is usually necessary to detect the airtightness of the liquid flow reference battery pack to fully ensure the airtightness of the liquid flow reference battery assembly. When the airtightness test fails, it is necessary to frequently disassemble and assemble the assembled liquid flow reference battery, and it is necessary to use the clamping and positioning device provided in any of the above embodiments to clamp and position the liquid flow reference battery 9 and the bolt 10. Therefore, the embodiment of the present invention also provides a liquid flow battery detection and repair device, which includes the clamping and positioning device provided in any of the above embodiments. Since the liquid flow battery detection and repair device has all the technical features of the clamping and positioning device provided in any of the above embodiments, it has the same technical effects as the above clamping and positioning device.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamping and positioning device, characterized in that, Comprising: A base; A carrier, disposed on the base; A clamping assembly, including a fixed clamping member fixedly disposed on the carrier and a movable clamping member movably disposed on the carrier, a clamping space for a bolt to be inserted is formed between the fixed clamping member and the movable clamping member; And A driving mechanism, the driving mechanism is connected to the movable clamping member, and the driving mechanism can drive the movable clamping member to approach or move away from the fixed clamping member, so that the clamping assembly clamps or loosens the bolt.

2. The clamping and positioning device according to claim 1, characterized in that, The clamping and positioning device further includes a wedge transmission structure connecting the clamping assembly and the driving mechanism. The wedge transmission structure includes a first wedge block fixedly disposed on the carrier, a second wedge block slidably disposed on the carrier, and a third wedge block disposed between the first wedge block and the second wedge block and capable of pushing the second wedge block away from the first wedge block. The second wedge block is connected to the movable clamping member, and the third wedge block is connected to the driving mechanism; the fixed clamping member, the movable clamping member, the second wedge block, and the first wedge block are arranged in sequence.

3. The clamping and positioning device according to claim 2, wherein, The cross-sections of the first wedge block and the second wedge block are right trapezoids, and the cross-section of the third wedge block is an isosceles trapezoid. The first inclined surface of the third wedge block is in sliding contact with the inclined surface of the first wedge block, and the second inclined surface of the third wedge block is in sliding contact with the inclined surface of the second wedge block. When the driving mechanism drives the third wedge block to move in the vertical direction, the third wedge block can push the second wedge block to move horizontally.

4. The clamping and positioning device according to claim 3, characterized in that The first wedge block and the second wedge block are connected by an elastic member; and / or, a first dovetail groove is provided on the inclined surface of the first wedge block, and a first slider adapted to the first dovetail groove is provided on the first inclined surface of the third wedge block, and the first slider is slidably disposed in the first dovetail groove; and / or, a second dovetail groove is provided on the inclined surface of the second wedge block, and a second slider adapted to the second dovetail groove is provided on the second inclined surface of the third wedge block, and the second slider is slidably disposed in the second dovetail groove.

5. The clamping and positioning device according to claim 3, wherein, The clamping and positioning device further includes a linkage rod. The driving mechanism is disposed on the base, and a guiding hole is provided on the carrier; The linkage rod is connected to the third wedge block and passes through the guiding hole to be connected to the driving mechanism, and the driving mechanism drives the linkage rod to move vertically.

6. The clamping and positioning device according to claim 1, characterized in that The clamping and positioning device further includes a positioning assembly for positioning the side surface of the liquid flow reference battery. At least two sets of the clamping assemblies are provided on the carrier, and each set of the clamping assemblies includes at least two of the clamping assemblies; the positioning assembly includes a pair of first positioning members and second positioning members. The first positioning member is connected to the movable clamping member of a set of the clamping assemblies, and the second positioning member is connected to the movable clamping member of another set of the clamping assemblies. The movable clamping members of each clamping assembly are respectively connected to the driving mechanism.

7. The clamping and positioning device according to claim 1, wherein The clamping and positioning device further includes a support base for supporting the flow battery and a screw rod connected to the support base. A threaded hole that is in threaded cooperation with the screw rod is provided on the carrier, and the screw rod is connected in the threaded hole.

8. The clamping and positioning device according to claim 1, wherein, A plurality of the clamping assemblies are provided on the carrier. The driving mechanism is arranged on the base. The driving mechanism includes a cylinder and a cylinder switch unit for controlling the operation of the cylinder. The clamping and positioning device further includes a linkage member connected to the telescopic rod of the cylinder, and the movable clamping members of the clamping assemblies are respectively connected to the linkage member.

9. The clamping and positioning device according to any one of claims 1 to 8, characterized in that, A first arc-shaped groove is provided on one side surface of the fixed clamping member facing the movable clamping member, and a second arc-shaped groove corresponding to the first arc-shaped groove is provided on the movable clamping member. The first arc-shaped groove and the second arc-shaped groove enclose a clamping space for inserting a bolt; and / or, an anti-slip structure is provided in the first arc-shaped groove and / or the second arc-shaped groove.

10. A liquid flow battery detection and maintenance device, characterized in that, It includes the clamping and positioning device according to any one of claims 1 to 9.

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