A clamping device with multiple positions and variable spacing for soft-pack batteries

Abstract

A clamping device for a soft-pack battery with multiple stations and variable spacing, comprising: a base, including a mechanism bottom plate and a guide rail; a clamping mechanism, including a clamping cylinder and a clamping block for clamping the clamping mechanism, the clamping cylinder is installed on the mounting plane at the bottom of the mechanism, and the telescopic end of the clamping cylinder is kept to reciprocate along the axial direction of the guide rail; the clamping block is installed on the telescopic end of the clamping cylinder; the clamping mechanism includes a plurality of sets of soft-pack battery clamping modules slidably mounted on the guide rail in parallel, the soft-pack battery clamping modules are independent of each other, and the clamping jaws of the clamp-shaped clamp modules are kept in the same direction; each set of soft-pack battery clamping modules is correspondingly configured with a clamping block; and a limiting mechanism, which is fixed on the mounting plane of the mechanism bottom plate, including a cylinder limiting device and a clamp limiting device. The beneficial effects of the present invention are: the soft-pack battery clamping modules are independent of each other, the spacing can be adjusted according to needs, the structure is simple, easy to assemble, convenient to maintain, and has a wide range of applications.

Description

Technical Field

[0001] The invention relates to a multi-station variable-spacing clamping device for soft-pack batteries, belonging to the technical field of lithium battery testing equipment manufacturing. Background Art

[0002] In the production process of soft-pack lithium batteries, capacity division is a very important process. Capacity division is to conduct several full-load charge and discharge cycles on the activated battery to test the internal resistance and charge and discharge capacity of the lithium battery. First, it is used to eliminate batteries with quality problems (such as too low capacity, too large self-discharge, and too large internal resistance). Second, the batteries are grouped according to capacity and internal group, so as to select batteries with similar performance to form battery packs for series and parallel applications, which can reduce the short board effect after the battery combination. The clamp-type clamp module of the existing soft-pack lithium battery capacity division equipment has a complex working structure, high assembly difficulty and difficult maintenance, and its spacing is fixed, so that the adaptability of the clamp-type clamp module is relatively single. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a clamping device with multiple positions and variable spacing for soft-pack batteries which has a simple structure, is easy to assemble, convenient to maintain, and can be adapted to a wide range of applications.

[0004] The invention provides a multi-station variable spacing clamping device for soft-pack batteries, characterized in that it comprises:

[0005] The base comprises a mechanism bottom plate and a guide rail. The mechanism bottom plate has a mounting plane, which serves as a mounting reference plane for the entire clamping device. The guide rail is horizontally laid on the mounting plane of the mechanism bottom plate, and is used for the independently controlled clamping mechanism to slide thereon.

[0006] The clamping mechanism includes a clamping cylinder and a clamping block for clamping the clamping mechanism. The clamping cylinder is installed on the mounting plane at the bottom of the mechanism and keeps the telescopic end of the clamping cylinder to reciprocate along the axial direction of the guide rail to provide a linear driving force. The clamping block is installed at the telescopic end of the clamping cylinder to clamp the clamping mechanism to prevent it from falling out of the mechanical limit.

[0007] The clamping mechanism includes a plurality of sets of soft-pack battery clamping modules slidably mounted in parallel on the guide rail, wherein the soft-pack battery clamping modules are independent of each other and keep the clamping jaws of the clamp-shaped clamp module in the same direction; each set of soft-pack battery clamping modules is correspondingly configured with a clamping block for positioning the soft-pack battery clamping module on the guide rail;

[0008] And a limiting mechanism, which is installed and fixed on the installation plane of the bottom plate of the mechanism, includes a cylinder limiting device and a clamp limiting device. The cylinder limiting device is arranged on the movement trajectory of the telescopic end of the clamping cylinder to control the movement stroke of the clamping cylinder; the clamp limiting block is located at the soft-pack battery clamping module at the outermost end of the clamping mechanism, and is used to prevent the soft-pack battery clamping module from falling out of the mechanical limit of the slide rail during movement.

[0009] The cylinder limit device includes a cylinder limit block and a stroke limit block. The cylinder limit block is installed on the end of the mechanism base plate close to the clamping cylinder and is located on the movement trajectory of the clamping cylinder, and is used to control the position limit of the cylinder being pushed out; the stroke limit block is installed and fixed on the mechanism base plate and is located on the movement trajectory of the telescopic end of the clamping cylinder, and is used to control the stroke limit of the cylinder being retracted.

[0010] The clamp limiting device is a clamp limiting block, which is arranged at the end of the mechanism bottom plate away from the clamping cylinder, and is used to prevent the soft-pack battery clamping module of the clamping mechanism from falling out of the mechanical limit of the slide rail during movement.

[0011] The soft pack battery clamping module comprises a clamp-type clamp mounting assembly, a wedge block pushing assembly, a clamp-type clamping assembly and a battery pole ear guide assembly, wherein the clamp-type clamp mounting assembly comprises a wedge positioning block, an upper plate of a wedge positioning block, an oil-free bushing, a bushing clamping block and a lower plate of a wedge positioning block, wherein the wedge positioning block is connected to the upper plate of the wedge positioning block and to the lower plate of the wedge positioning block, and a horizontal mounting through hole is provided on the wedge positioning block; the rear end of the oil-free bushing is inserted into the groove on the upper part of the bushing clamping block, and the two are located between the upper plate of the wedge positioning block and the lower plate of the wedge positioning block, wherein the bushing clamping block is embedded on the end surface of the first side of the wedge positioning block, and the oil-free bushing is horizontally embedded into the horizontal mounting through hole through the bushing clamping block, so that the oil-free bushing is relatively fixed to the wedge positioning block, and the center hole of the oil-free bushing is used as a through-hole for inserting the pusher of the clamp-type clamp clamping degree adjustment mechanism; the bottom of the lower plate of the wedge positioning block is equipped with a linear slider that can be slidably connected to the guide rail;

[0012] The wedge block pushing assembly comprises a driving device for providing a linear driving force and a pushing member for adjusting the clamping degree of the clamp, wherein the driving device comprises a cylinder and a cylinder mounting block, and the pushing member comprises a wedge block and a wedge pushing block, wherein the first end of the wedge pushing block is connected to the wedge block, and the second end is connected to the linear telescopic end of the cylinder; the cylinder is mounted on the cylinder mounting block, and the linear telescopic end of the cylinder is kept horizontally arranged, the first end of the cylinder mounting block is connected between the wedge pushing block and the cylinder, and is close to the cylinder, and the second end is connected to the upper plate of the wedge positioning block, and the linear reciprocating motion of the linear telescopic end of the cylinder drives the linear motion of the wedge block to control the clamping and releasing of the clamp;

[0013] The clamp-type clamping assembly is installed on the clamp-type clamp fixing mechanism on the second side of the wedge positioning block, and includes a clamp-type clamp for clamping the battery pole ear and a guide pin for guiding the clamp-type clamp. The clamp-type clamp includes a pair of mutually hinged clamp bodies, the front ends of the clamp bodies are relatively formed into a jaw, the ends of the jaw are provided with a current sheet and a voltage sheet that can be contacted and connected with the soft-pack lithium battery, the current sheet and the voltage sheet are connected to the circuit of the external test equipment through a wire, the rear ends of the clamp bodies are relatively formed into an adjustment block for the insertion end of the pusher to be inserted, and the clamping degree of the clamp-type clamp is adjusted by adjusting the insertion position of the insertion end; the guide pin is arranged at the bottom of the clamp-type clamp, and the end of the guide pin is connected to the clamp-type clamp fixing mechanism to form a guide slideway for the horizontal movement of the clamp-type clamp;

[0014] The battery tab guide assembly is arranged on the second side of the pliers-type clamp mounting assembly, and includes a clamp block for guiding the soft-pack battery tab to be inserted into the jaws of the pliers-type clamp and a clamp fixing block for fixing the clamp block. The clamp block is arranged at the jaws of the pliers-type clamp through the clamp fixing block, and the clamp block is provided with a channel for guiding the battery tab to be inserted into the jaws of the pliers-type clamp.

[0015] A roller is installed at the rear end of the clamp body of the clamp-shaped clamp, and the central axes of the two rollers are kept parallel; the wedge-shaped tip of the wedge block is inserted into the gap between the rolling surfaces of the two rollers to adjust the opening degree of the clamping end of the clamp body to clamp or loosen the battery terminal ear.

[0016] The wedge block is divided into an installation section, a sliding section and an insertion section along the axial direction, wherein the installation section and the insertion section are respectively arranged on the first side and the second side of the wedge positioning block, the end of the installation section is fixedly connected to the first end of the wedge pushing block, the sliding section is inserted into the center hole of the oil-free bushing, and can form relative movement between the wedge block and the oil-free bushing under the drive of the cylinder; the front end of the insertion section is a wedge-shaped tip that can be inserted into the rear end of the pliers clamp to adjust the block, and the clamping degree of the pliers clamp is adjusted by the insertion position of the wedge-shaped tip.

[0017] The clamp block is arranged at the jaws of the pliers clamp, and connecting ears are provided on the upper and lower end surfaces of the rear part of the clamp block, the upper connecting ear is connected to the upper plate of the wedge positioning block through the clamp fixing block, and the lower connecting ear is against the front end of the guide pin, so that the upper end surface of the guide pin forms a guide slide for the sliding of the pliers clamp; the clamp block is provided with a channel for the insertion of the battery ear, wherein the front end of the channel extends to the side of the clamp block, the end of the channel extends to the jaws of the pliers clamp, and the front end of the channel has a guiding slope.

[0018] The insertion direction of the soft-pack battery tab is perpendicular to the sliding direction of the soft-pack battery clamping module.

[0019] The beneficial effects of the present invention are as follows: the soft-pack battery clamping modules are independent of each other, the spacing can be adjusted according to needs, the structure is simple, easy to assemble, convenient to maintain, and has a wide range of adaptability; it is not only suitable for lithium battery capacity division test equipment, but also widely applicable to test equipment components such as lithium capacitors and supercapacitors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is the front view of the present invention.

[0022] Figure 3 It is a schematic diagram of the present invention.

[0023] Figure 4 It is a left side view of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure expansion of the soft-pack battery clamping module of the present invention.

[0025] Figure 6 , Figure 7 , Figure 8 These are the front view, top view, and left view of the soft-pack battery clamping module.

[0026] Fig. 9 It is a schematic diagram of the structure expansion of the clamp-type clamp installation assembly.

[0027] Fig.10 It is a schematic diagram of the structure expansion of the wedge block pushing component. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings.

[0029] Refer to the attached figure:

[0030] Embodiment 1 A multi-station variable spacing clamping device for soft-pack batteries according to the present invention comprises:

[0031] The base comprises a mechanism bottom plate 3 and a guide rail 2. The mechanism bottom plate has a mounting plane, which serves as a mounting reference plane for the entire clamping device. The guide rail is horizontally laid on the mounting plane of the mechanism bottom plate, and is used for the independently controlled clamping mechanism to slide on it.

[0032] The clamping mechanism includes a clamping cylinder 8 and a clamping block 4 for clamping the clamping mechanism. The clamping cylinder 8 is mounted on the mounting plane of the mechanism bottom plate 3, and keeps the telescopic end of the clamping cylinder 8 to reciprocate along the axial direction of the guide rail 2 to provide a linear driving force. The clamping block 4 is mounted on the telescopic end of the clamping cylinder 8 to clamp the clamping mechanism to prevent it from falling out of the mechanical limit.

[0033] The clamping mechanism includes a plurality of sets of soft-pack battery clamping modules 6 slidably mounted in parallel on the guide rail, wherein the soft-pack battery clamping modules 6 are independent of each other and keep the clamping jaws of the clamp-shaped clamp module in the same direction; there is only one set of the clamping mechanism, that is, all the soft-pack battery clamping modules 6 are equipped with a clamping block 4 for positioning the soft-pack battery clamping modules on the guide rail, and the spacing of the soft-pack battery clamping modules 6 is controlled by manually adjusting the limit block;

[0034] And a limiting mechanism, which is installed and fixed on the installation plane of the bottom plate of the mechanism, includes a cylinder limiting device and a clamp limiting device. The cylinder limiting device is arranged on the movement trajectory of the telescopic end of the clamping cylinder to control the movement stroke of the clamping cylinder; the clamp limiting block is located at the soft-pack battery clamping module at the outermost end of the clamping mechanism, and is used to prevent the soft-pack battery clamping module from falling out of the mechanical limit of the slide rail during movement.

[0035] The cylinder limit device includes a cylinder limit block 1 and a stroke limit block 5. The cylinder limit block 1 is installed on the end of the mechanism base plate 3 close to the clamping cylinder and is located on the movement trajectory of the clamping cylinder 8, so as to control the movement stroke of the clamping cylinder; the stroke limit block 5 is installed and fixed on the mechanism base plate and is located on the movement trajectory of the telescopic end of the clamping cylinder, so as to control the movement stroke of the telescopic end of the clamping cylinder.

[0036] The clamp limiting device is a clamp limiting block 7, which is arranged at the end of the mechanism bottom plate away from the clamping cylinder, and is used to prevent the soft-pack battery clamping module of the clamping mechanism from falling out of the mechanical limit of the slide rail during movement.

[0037] The soft pack battery clamping module 6 includes a clamp-type clamp installation component 61, a wedge block pushing component 62, a clamp-type clamping component and a battery pole ear guide component. The clamp-type clamp installation component 61 includes a wedge positioning block 611, a wedge positioning block upper plate 612, an oil-free bushing 613, a bushing clamping block 614 and a wedge positioning block lower plate 615. The wedge positioning block is connected to the wedge positioning block upper plate and the wedge positioning block lower plate. A horizontal mounting through hole is provided on the wedge positioning block; the rear end of the oil-free bushing Inserted into the groove on the upper part of the bushing block, the two are located between the upper plate of the wedge positioning block and the lower plate of the wedge positioning block, wherein the bushing block is embedded in the end surface of the first side of the wedge positioning block, and the oil-free bushing is horizontally embedded into the horizontal installation through hole through the bushing block, so that the oil-free bushing and the wedge positioning block are relatively fixed, and the center hole of the oil-free bushing is used as a through-hole for the pusher of the clamping degree adjustment mechanism of the clamp-type clamp to be inserted; the bottom of the wedge positioning block lower plate 615 is equipped with a linear slider that can be slidably connected with the guide rail;

[0038] The wedge block pushing assembly 62 includes a driving device for providing a linear driving force and a pushing member for adjusting the clamping degree of the clamp, wherein the driving device includes a cylinder 624 and a cylinder mounting block 623, and the pushing member includes a wedge block 621 and a wedge pushing block 622, wherein the first end of the wedge pushing block is connected to the wedge block, and the second end is connected to the linear telescopic end of the cylinder; the cylinder is mounted on the cylinder mounting block, and the linear telescopic end of the cylinder is kept horizontally arranged, the first end of the cylinder mounting block is connected between the wedge pushing block and the cylinder, and is close to the cylinder, and the second end is connected to the upper plate of the wedge positioning block, and the linear reciprocating motion of the linear telescopic end of the cylinder drives the linear motion of the wedge block to control the clamping and loosening of the clamp;

[0039] The clamp-type clamping assembly is installed on the clamp-type clamp fixing mechanism on the second side of the wedge positioning block, and includes a clamp-type clamp 65 for clamping the battery pole ear and a guide pin 64 for guiding the clamp-type clamp. The clamp-type clamp 65 includes a pair of mutually hinged clamp bodies, the front ends of which are relatively formed into a jaw, and the ends of the jaw are provided with a current sheet and a voltage sheet which can be contacted and connected with the soft-pack lithium battery. The current sheet and the voltage sheet are connected to the circuit of the external test equipment through a wire, and the rear end of the clamp body is relatively formed into an adjustment block for the insertion end of the pusher to be inserted, and the clamping degree of the clamp-type clamp is adjusted by adjusting the insertion position of the insertion end; the guide pin is arranged at the bottom of the clamp-type clamp, and the end of the guide pin is connected to the clamp-type clamp fixing mechanism to form a guide slideway for the horizontal movement of the clamp-type clamp;

[0040] The battery tab guide assembly is arranged on the second side of the pliers-type clamp mounting assembly, and includes a clamp stopper 66 for guiding the soft-pack battery tab to be inserted into the jaws of the pliers-type clamp and a clamp fixing block 67 for fixing the clamp stopper. The clamp stopper is arranged at the jaws of the pliers-type clamp through the clamp fixing block, and the clamp stopper is provided with a channel for guiding the battery tab to be inserted into the jaws of the pliers-type clamp.

[0041] A roller is installed at the rear end of the clamp body of the clamp-shaped clamp, and the central axes of the two rollers are kept parallel; the wedge-shaped tip of the wedge block is inserted into the gap between the rolling surfaces of the two rollers to adjust the opening degree of the clamping end of the clamp body to clamp or loosen the battery terminal ear.

[0042] The wedge block is divided into an installation section, a sliding section and an insertion section along the axial direction, wherein the installation section and the insertion section are respectively arranged on the first side and the second side of the wedge positioning block, the end of the installation section is fixedly connected to the first end of the wedge pushing block, the sliding section is inserted into the center hole of the oil-free bushing, and can form relative movement between the wedge block and the oil-free bushing under the drive of the cylinder; the front end of the insertion section is a wedge-shaped tip that can be inserted into the rear end of the pliers clamp to adjust the block, and the clamping degree of the pliers clamp is adjusted by the insertion position of the wedge-shaped tip.

[0043] The clamp block is arranged at the jaws of the pliers clamp, and connecting ears are provided on the upper and lower end surfaces of the rear part of the clamp block, the upper connecting ear is connected to the upper plate of the wedge positioning block through the clamp fixing block, and the lower connecting ear is against the front end of the guide pin, so that the upper end surface of the guide pin forms a guide slide for the sliding of the pliers clamp; the clamp block is provided with a channel for the insertion of the battery ear, wherein the front end of the channel extends to the side of the clamp block, the end of the channel extends to the jaws of the pliers clamp, and the front end of the channel has a guiding slope.

[0044] The insertion direction of the soft-pack battery tab is perpendicular to the sliding direction of the soft-pack battery clamping module.

[0045] Embodiment 2 The clamping device for multi-station variable spacing of soft-pack batteries described in the present invention: the cylinder limit block 1 is mounted and fixed on the mechanism base plate 3, and is used to control the movement stroke of the clamping cylinder 8; the guide rail 2 is mounted and fixed on the mechanism base plate 3, and can be used for the independently controlled soft-pack battery clamping module 6 to slide on it; the mechanism base plate 3 is used to fix the integral parts of the multi-station variable spacing clamp-type clamp module of the soft-pack battery; the clamping block 4 is mounted and fixed on the clamping cylinder 8, and is used to clamp a plurality of independently controlled soft-pack battery clamping modules 6, and plays a clamping role on the plurality of independently controlled soft-pack battery clamping modules 6, so as to prevent the independently controlled soft-pack battery clamping modules 6 from falling out of the mechanical part of the slide rail during movement. Limit; the travel limit block 5 is installed and fixed on the mechanism base plate 3, and is also used to further control the travel of the clamping cylinder 8; the soft-pack battery clamping module 6 can independently clamp the soft-pack battery pole ear, is installed on the guide rail, and can slide along the guide rail. Because it is installed on the guide rail, the spacing of multiple independently controlled soft-pack battery clamping modules 6 can be adjusted to realize the multi-station variable spacing function of the clamp-type clamp module; the clamp limit block 7 prevents the independently controlled clamp-type clamp module from falling out of the mechanical limit of the slide rail during movement; the clamping cylinder 8 clamps the independently controlled soft-pack battery clamping module 6 through the clamping block 4 to ensure that the independently controlled soft-pack battery clamping module 6 does not move after adjusting the spacing.

[0046] Example 3 Reference Figure 1-4 , the structure and action description of the clamping device for soft-pack batteries with multiple positions and variable spacing: the cylinder limit block 1 is installed and fixed on the mechanism bottom plate 3 to control the movement stroke of the clamping cylinder 8; the guide rail 2 is installed and fixed

[0047] On the mechanism base plate 3, an independently controlled soft-pack battery clamping module 6 can slide on it; the mechanism base plate 3 is used to fix the integral parts of the soft-pack battery multi-station variable-spacing clamp-type clamp module; the clamping block 4 is installed and fixed on the clamping cylinder 8, and is used to clamp multiple soft-pack battery clamping modules 6, and plays a clamping role on multiple soft-pack battery clamping modules 6 to prevent the independently controlled soft-pack battery clamping modules 6 from falling out of the mechanical limit of the slide rail during movement; the travel limit block 5 is installed and fixed on the mechanism base plate 3, and is also further used to control the travel of the clamping cylinder 8. An independently controlled clamp-type clamp module can independently clamp the soft-pack battery pole ear and is installed on the guide rail 2 and can slide along the guide rail 2. Because it is installed on the guide rail 2, the spacing between multiple independently controlled soft-pack battery clamping modules 6 can be adjusted to realize the multi-station variable spacing function of the clamp-type clamp module; the clamp limit block 7 prevents the independently controlled soft-pack battery clamping module 6 from falling out of the mechanical limit of the slide rail during movement; the clamping cylinder 8 clamps the independently controlled soft-pack battery clamping module 6 to ensure that the soft-pack battery clamping module 6 does not move after the spacing is adjusted.

[0048] The contents described in the embodiments of this specification are merely an enumeration of implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also includes equivalent technical means that can be thought of by those skilled in the art based on the inventive concept.

Claims

1. A multi-station variable spacing clamping device for soft-pack batteries, characterized in that: include: The base comprises a mechanism bottom plate and a guide rail. The mechanism bottom plate has a mounting plane, which serves as a mounting reference plane for the entire clamping device. The guide rail is horizontally laid on the mounting plane of the mechanism bottom plate, and is used for the independently controlled clamping mechanism to slide thereon. The clamping mechanism includes a clamping cylinder and a clamping block for clamping the clamping mechanism. The clamping cylinder is installed on the mounting plane at the bottom of the mechanism and keeps the telescopic end of the clamping cylinder to reciprocate along the axial direction of the guide rail to provide a linear driving force. The clamping block is installed at the telescopic end of the clamping cylinder to clamp the clamping mechanism to prevent it from falling out of the mechanical limit. The clamping mechanism includes a plurality of sets of soft-pack battery clamping modules slidably mounted in parallel on the guide rail, wherein the soft-pack battery clamping modules are independent of each other and keep the clamping jaws of the clamp-shaped clamp module in the same direction; each set of soft-pack battery clamping modules is correspondingly configured with a clamping block for positioning the soft-pack battery clamping module on the guide rail; And a limiting mechanism, which is installed and fixed on the installation plane of the mechanism bottom plate, including a cylinder limiting device and a clamp limiting device. The cylinder limiting device is arranged on the movement track of the telescopic end of the clamping cylinder to control the movement stroke of the clamping cylinder; the clamp limiting block is located at the soft-pack battery clamping module at the outermost end of the clamping mechanism, and is used to prevent the soft-pack battery clamping module from falling out of the mechanical limit of the slide rail during movement; The cylinder limit device includes a cylinder limit block and a stroke limit block. The cylinder limit block is installed at the end of the mechanism bottom plate close to the clamping cylinder and is located on the motion track of the clamping cylinder to control the motion stroke of the clamping cylinder; the stroke limit block is installed and fixed on the mechanism bottom plate and is located on the motion track of the telescopic end of the clamping cylinder to control the motion stroke of the telescopic end of the clamping cylinder; The clamp limit device is a clamp limit block, which is arranged at the end of the mechanism bottom plate away from the clamping cylinder, and is used to prevent the soft pack battery clamping module of the clamping mechanism from falling out of the mechanical limit of the slide rail during movement; The soft pack battery clamping module comprises a clamp-type clamp mounting assembly, a wedge block pushing assembly, a clamp-type clamping assembly and a battery pole ear guide assembly, wherein the clamp-type clamp mounting assembly comprises a wedge positioning block, an upper plate of a wedge positioning block, an oil-free bushing, a bushing clamping block and a lower plate of a wedge positioning block, wherein the wedge positioning block is connected to the upper plate of the wedge positioning block and to the lower plate of the wedge positioning block, and a horizontal mounting through hole is provided on the wedge positioning block; the rear end of the oil-free bushing is inserted into the groove on the upper part of the bushing clamping block, and the two are located between the upper plate of the wedge positioning block and the lower plate of the wedge positioning block, wherein the bushing clamping block is embedded on the end surface of the first side of the wedge positioning block, and the oil-free bushing is horizontally embedded into the horizontal mounting through hole through the bushing clamping block, so that the oil-free bushing is relatively fixed to the wedge positioning block, and the center hole of the oil-free bushing is used as a through-hole for inserting the pusher of the clamp-type clamp clamping degree adjustment mechanism; the bottom of the lower plate of the wedge positioning block is equipped with a linear slider that can be slidably connected to the guide rail; The wedge block pushing assembly comprises a driving device for providing a linear driving force and a pushing member for adjusting the clamping degree of the clamp, wherein the driving device comprises a cylinder and a cylinder mounting block, and the pushing member comprises a wedge block and a wedge pushing block, wherein the first end of the wedge pushing block is connected to the wedge block, and the second end is connected to the linear telescopic end of the cylinder; the cylinder is mounted on the cylinder mounting block, and the linear telescopic end of the cylinder is kept horizontally arranged, the first end of the cylinder mounting block is connected between the wedge pushing block and the cylinder, and is close to the cylinder, and the second end is connected to the upper plate of the wedge positioning block, and the linear reciprocating motion of the linear telescopic end of the cylinder drives the linear motion of the wedge block to control the clamping and releasing of the clamp; The clamp-type clamping assembly is installed on the clamp-type clamp fixing mechanism on the second side of the wedge positioning block, and includes a clamp-type clamp for clamping the battery pole ear and a guide pin for guiding the clamp-type clamp. The clamp-type clamp includes a pair of mutually hinged clamp bodies, the front ends of the clamp bodies are relatively formed into a jaw, the ends of the jaw are provided with a current sheet and a voltage sheet that can be contacted and connected with the soft-pack lithium battery, the current sheet and the voltage sheet are connected to the circuit of the external test equipment through a wire, the rear ends of the clamp bodies are relatively formed into an adjustment block for the insertion end of the pusher to be inserted, and the clamping degree of the clamp-type clamp is adjusted by adjusting the insertion position of the insertion end; the guide pin is arranged at the bottom of the clamp-type clamp, and the end of the guide pin is connected to the clamp-type clamp fixing mechanism to form a guide slideway for the horizontal movement of the clamp-type clamp; The battery tab guide assembly is arranged on the second side of the pliers-type clamp mounting assembly, and includes a clamp block for guiding the soft-pack battery tab to be inserted into the jaws of the pliers-type clamp and a clamp fixing block for fixing the clamp block. The clamp block is arranged at the jaws of the pliers-type clamp through the clamp fixing block, and the clamp block is provided with a channel for guiding the battery tab to be inserted into the jaws of the pliers-type clamp.

2. A multi-station variable spacing clamping device for soft-pack batteries as claimed in claim 1, characterized in that: A roller is installed at the rear end of the clamp body of the clamp-shaped clamp, and the central axes of the two rollers are kept parallel; the wedge-shaped tip of the wedge block is inserted into the gap between the rolling surfaces of the two rollers to adjust the opening degree of the clamping end of the clamp body to clamp or loosen the battery terminal ear.

3. A multi-station variable spacing clamping device for soft-pack batteries as claimed in claim 2, characterized in that: The wedge block is divided into an installation section, a sliding section and an insertion section along the axial direction, wherein the installation section and the insertion section are respectively arranged on the first side and the second side of the wedge positioning block, the end of the installation section is fixedly connected to the first end of the wedge pushing block, the sliding section is inserted into the center hole of the oil-free bushing, and can form relative movement between the wedge block and the oil-free bushing under the drive of the cylinder; the front end of the insertion section is a wedge-shaped tip that can be inserted into the rear end of the pliers clamp to adjust the block, and the clamping degree of the pliers clamp is adjusted by the insertion position of the wedge-shaped tip.

4. A multi-station variable spacing clamping device for soft-pack batteries as claimed in claim 1, characterized in that: The clamp block is arranged at the jaws of the pliers clamp, and connecting ears are provided on the upper and lower end surfaces of the rear part of the clamp block, the upper connecting ear is connected to the upper plate of the wedge positioning block through the clamp fixing block, and the lower connecting ear is against the front end of the guide pin, so that the upper end surface of the guide pin forms a guide slide for the sliding of the pliers clamp; the clamp block is provided with a channel for the insertion of the battery ear, wherein the front end of the channel extends to the side of the clamp block, the end of the channel extends to the jaws of the pliers clamp, and the front end of the channel has a guiding slope.

5. A multi-station variable spacing clamping device for soft-pack batteries as claimed in claim 1, characterized in that: The insertion direction of the soft-pack battery tab is perpendicular to the sliding direction of the soft-pack battery clamping module.

Images