A clamp-type clamp module and clamping device for independently controlling soft-pack lithium batteries

Abstract

A clamp-type clamp module and clamping device for independent control of soft-pack lithium batteries, the clamp-type clamp module comprising: a clamp-type clamp fixing mechanism, having a blocking portion, and the blocking portion is provided with a through-hole arranged in a horizontal direction; a clamp-type clamp clamping degree adjustment mechanism, comprising a driving device for providing a linear driving force and a pusher for adjusting the clamp-type clamp clamping degree; a battery pole ear clamping mechanism, installed on the clamp-type clamp fixing mechanism on the second side of the blocking portion, comprising a clamp-type clamp for clamping the battery pole ear and a guide pin for guiding the clamp-type clamp; and a battery pole ear guide mechanism, arranged on the second side of the clamp-type clamp fixing mechanism on the second side of the blocking portion, comprising a clamp stopper and a clamp fixing block; the clamping device comprises a sliding base and a plurality of sets of clamp-type clamp modules for independent control of soft-pack lithium batteries. The beneficial effects of the present invention are: simple structure, easy assembly, convenient maintenance, and relative quantity can be assembled according to different numbers of soft-pack batteries.

Description

Technical Field

[0001] The invention relates to a clamp-type clamp module and a clamping device for independently controlling a soft-pack lithium battery, belonging to the technical field of lithium battery testing equipment. Background Art

[0002] In the testing process of soft-pack lithium batteries, capacity division is to conduct several full-load charge and discharge cycles on the activated batteries to test the AC and DC internal resistance, charge and discharge voltage, constant current discharge, constant voltage discharge, and constant power discharge curves. 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 a battery pack.

[0003] In order to improve the electrochemical properties of lithium batteries, such as cycle life, stability, self-discharge, and safety, it is necessary to strictly control the consistency of lithium batteries or accurately assess the battery grade, so there are high requirements for formation and capacity separation equipment. The good contact between the fixture of the formation and capacity separation equipment and the battery tab directly affects the test results, so this requires our tab fixture to have good contact with the battery on the one hand, and simple structure, easy assembly, convenient maintenance, and practical tab fixtures for different numbers of soft-pack batteries on the other hand. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a soft-pack battery independently controlled clamp-type clamp module and a clamping device, which has a simple structure, is easy to assemble, and is convenient to maintain, and can assemble a relative number of modules according to different numbers of soft-pack batteries.

[0005] The clamp-type clamp module for independently controlling a soft-pack lithium battery of the present invention is characterized by comprising:

[0006] The clamp-type fixture fixing mechanism has a blocking portion, and the blocking portion is provided with a through-hole arranged in a horizontal direction;

[0007] A clamp-type clamp clamping degree adjustment mechanism comprises a driving device for providing a linear driving force and a pushing member for adjusting the clamp-type clamp clamping degree, wherein the driving device is installed on a first side of a blocking portion; a first end of the pushing member is connected to a linear driving end of the driving device, so that the pushing member is driven by the driving device to linearly reciprocate along the axial direction of a through-hole; a second end of the pushing member passes through the through-hole of the blocking portion and falls on a second side of the blocking portion, forming an insertion end that can be inserted into the clamp-type clamp;

[0008] The battery pole ear clamping mechanism is installed on the clamp-type clamp fixing mechanism on the second side of the blocking part, 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, and 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, and 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;

[0009] And a battery tab guiding mechanism is arranged on the second side of the clamp-type clamp fixing mechanism on the second side of the blocking part, including a clamp stopper for guiding the soft-pack battery tab to be inserted into the jaws of the clamp-type clamp and a clamp fixing block for fixing the clamp stopper, the clamp stopper is arranged at the jaws of the clamp-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 clamp-type clamp.

[0010] The clamp-type clamp fixing mechanism includes a wedge positioning block as a blocking part, an upper plate of the wedge positioning block, an oil-free bushing, a bushing block and a lower plate of the wedge positioning block. The wedge positioning block is the main part of the clamp-type clamp installation assembly, which guides the wedge block so that the wedge block is connected to the clamp-type clamp through the wedge positioning block to form a good contact; the wedge positioning block is connected to the upper plate of the wedge positioning block on the top and the lower plate of the wedge positioning block on the bottom, and a horizontal installation through hole is provided on the wedge positioning block; the upper plate of the wedge positioning block is the main component of the clamp-type clamp installation assembly, which is connected to the cylinder through the cylinder installation block; the lower plate of the wedge positioning block is the main part of the clamp-type clamp installation assembly The main component is connected to the linear slider; the rear end of the oil-free bushing is clamped into the groove on the upper part of the bushing 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 block is embedded in the end face of the first side of the wedge positioning block, and the oil-free bushing is horizontally embedded in the horizontal mounting 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 serves as a through-hole for the insertion of the pushing member of the clamping degree adjustment mechanism of the pliers-type clamp; the oil-free bushing and the wedge block produce relative motion, and the bushing block plays the role of clamping the oil-free bushing, so that it cannot move back and forth and can only move relative to the wedge block.

[0011] The clamping degree adjustment mechanism of the clamp-type clamp is a wedge block pushing assembly, which includes a driving device for providing a linear driving force and a pushing member for adjusting the clamping degree of the clamp-type clamp, wherein the driving device includes a cylinder and a cylinder mounting block, and the pushing member includes 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 wedge block is the main part for controlling the operation of the clamp-type clamp, and the clamping and loosening of the soft-pack battery clamp are controlled by the linear motion of the wedge block; the cylinder (CJ 2B16-12AZ) is used to control the clamping and opening of the clamp-type clamp. The cylinder is installed on the cylinder mounting block, and the linear telescopic end of the cylinder is kept horizontally arranged; the cylinder mounting block is used to connect the wedge block pushing assembly and the clamp-type clamp mounting assembly. The first end of the cylinder mounting block is connected between the wedge pushing block and the cylinder and is close to the cylinder. The second end is connected to the upper plate of the wedge positioning block. 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.

[0012] 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.

[0013] The clamp block serves to guide the pole ear of the soft-pack battery so that the pole ear is in good contact with the pliers-type clamp. The clamp block is arranged at the jaws of the pliers-type clamp. The upper and lower end surfaces of the rear part of the clamp block are provided with connecting ears. 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 slideway for the pliers-type clamp to slide. The clamp block is provided with a channel for inserting the battery pole ear, wherein the front end of the channel extends to the side of the clamp block, and the end of the channel extends to the jaws of the pliers-type clamp.

[0014] The guide pin serves to guide the clamp-type clamp, making it easier for the tab of the soft-pack lithium battery to enter the clamp-type clamp, so as to achieve good contact between the tab and the clamp-type clamp.

[0015] The front end of the channel is provided with a guiding slope.

[0016] The clamp-type clamp is used to contact the pole ear of the soft-pack lithium battery and conduct voltage and current through the connection of the external circuit; a roller is installed at the rear end of the clamp body of the clamp-type 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 pole ear.

[0017] A soft-pack lithium battery clamping device, characterized in that it includes a sliding base and several sets of independently controlled clamp-type clamp modules for the soft-pack lithium battery, the sliding base includes a horizontally arranged linear slide rail and several linear sliders that can slide along the linear slide rail, the linear sliders are installed on the linear slide rail in parallel, and each linear slider is correspondingly installed with a set of independently controlled clamp-type clamp modules for the soft-pack lithium battery, so that the clamp-type clamp modules are independently arranged in parallel on the linear slide rail.

[0018] Working description of a soft pack lithium battery clamping device:

[0019] 1) Battery preparation: The positive and negative ears of the battery are in contact with the clamp-type clamp under the action of the clamp block;

[0020] 2) Clamping the pole ear: The cylinder is started, and the wedge pusher pushes the wedge block to move toward the clamp-shaped clamp, so that the clamp-shaped clamp is closed, thereby clamping the battery pole ear to achieve the purpose of connecting the battery;

[0021] 3) Loosen the tab: The cylinder is started, and the wedge push block drives the wedge block to slide back, so that the wedge plate loses its effective effect on the clamp-shaped clamp, and the clamp-shaped clamp opens naturally, thereby loosening the battery tab.

[0022] 4) Multiple soft-pack lithium battery independent control clamp-type clamp modules can be arranged in parallel through a linear slider, and the main cylinder can be started, so that multiple soft-pack lithium battery independent control clamp-type clamp modules can operate simultaneously to clamp and release the battery ears at the same time.

[0023] The beneficial effects of the present invention are: it has the advantages of simple structure, easy assembly, convenient maintenance, and the ability to assemble a relative number of modules according to different numbers of soft-pack batteries, and can be widely used in test equipment components for soft-pack lithium batteries and lithium capacitors and supercapacitors with similar soft-pack structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure explosion of the independent control clamp type clamp module.

[0025] Figure 2 , Figure 3 , Figure 4 These are the front view, top view, and left view of the independently controlled clamp-type fixture module.

[0026] Figure 5 It is a schematic diagram of the structure explosion of the clamp type clamp mounting assembly of the independent control clamp type clamp module.

[0027] Figure 6 It is a structural exploded diagram of the wedge block pushing assembly of the independent control clamp type clamp module. 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 clamp-type clamp module for independently controlling a soft-pack lithium battery according to the present invention comprises:

[0031] The clamp-type fixture fixing mechanism 1 has a blocking portion, and the blocking portion is provided with a through hole arranged in a horizontal direction;

[0032] The clamp-type clamp clamping degree adjustment mechanism 2 comprises a driving device for providing a linear driving force and a pushing member for adjusting the clamp-type clamp clamping degree, wherein the driving device is installed on the first side A of the blocking portion; the first end of the pushing member is connected to the linear driving end of the driving device, so that the pushing member is driven by the driving device to reciprocate along the axial direction of the through-hole in a linear manner; the second end of the pushing member passes through the through-hole of the blocking portion and falls on the second side B of the blocking portion, forming an insertion end that can be inserted into the clamp-type clamp;

[0033] The battery pole ear clamping mechanism is installed on the clamp-type clamp fixing mechanism on the second side of the blocking part, and includes a clamp-type clamp 5 for clamping the battery pole ear and a guide pin 4 for guiding the clamp-type clamp. The clamp-type clamp 5 includes a pair of mutually hinged clamp bodies, the front ends of the clamp bodies are relatively formed into a jaw, and the ends of the jaws 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, 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 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;

[0034] And a battery tab guiding mechanism, which is arranged on the second side of the pliers-type clamp fixing mechanism on the second side of the blocking portion, includes a clamp stopper 6 for guiding the soft-pack battery tab to be inserted into the jaws of the pliers-type clamp and a clamp fixing block 7 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.

[0035] The clamp-type clamp fixing mechanism 1 includes a wedge positioning block 11 as a blocking part, an upper plate 12 of the wedge positioning block, an oil-free bushing 13, a bushing clamp block 14 and a lower plate 15 of the wedge positioning block. The wedge positioning block 11 is the main part of the clamp-type clamp installation assembly, and guides the wedge block 21 so that the wedge block 21 is connected to the clamp-type clamp 5 through the wedge positioning block 22 to form a good contact; the wedge positioning block 11 is connected to the upper plate 12 of the wedge positioning block and to the lower plate 15 of the wedge positioning block at the bottom, and a horizontal installation through hole is provided on the wedge positioning block 11; the upper plate 12 of the wedge positioning block is the main component of the clamp-type clamp installation assembly, and is connected to the cylinder 24 through the cylinder installation block 23; the lower plate 15 of the wedge positioning block is the main part of the clamp-type clamp installation assembly The main component of the component is connected to the linear slider 3; the rear end of the oil-free bushing 13 is inserted into the groove on the upper part of the bushing block 14, and the two are located between the upper plate 12 of the wedge positioning block and the lower plate 15 of the wedge positioning block, wherein the bushing block 14 is embedded in the end face of the first side of the wedge positioning block 11, and the oil-free bushing 13 is horizontally embedded in the horizontal mounting through hole through the bushing block 14, so that the oil-free bushing 13 and the wedge positioning block 11 are relatively fixed, and the center hole of the oil-free bushing 13 is used as a through-hole for the pushing member of the clamping adjustment mechanism of the pliers-type clamp 5 to be inserted; the oil-free bushing 13 and the wedge block 21 generate relative movement, and the bushing block 14 plays the role of clamping the oil-free bushing 13, so that it cannot move back and forth and can only move relative to the wedge block 21.

[0036] The clamping degree adjustment mechanism 2 of the clamp-type clamp is a wedge block pushing assembly, including a driving device for providing a linear driving force and a pushing member for adjusting the clamping degree of the clamp-type clamp, wherein the driving device includes a cylinder 24 and a cylinder mounting block 23, and the pushing member includes a wedge block 21 and a wedge pushing block 22, wherein the first end of the wedge pushing block 22 is connected to the wedge block 21, and the second end is connected to the linear telescopic end of the cylinder 24; the wedge block 21 is the main part for controlling the operation of the clamp-type clamp, and the clamping and loosening of the soft-pack battery clamp are controlled by the linear movement of the wedge block 21; the cylinder 24 (C J2B16-12AZ) is used to control the clamping and opening of the clamp-type clamp 5. The cylinder is installed on the cylinder mounting block 23, and the linear telescopic end of the cylinder 24 is kept horizontally arranged; the cylinder mounting block 23 is used to connect the wedge block pushing assembly and the parts of the clamp-type clamp 5 mounting assembly. The first end of the cylinder mounting block 23 is connected between the wedge pushing block 22 and the cylinder 24, and is close to the cylinder 24. The second end is connected to the wedge positioning block upper plate 12. The linear reciprocating motion of the linear telescopic end of the cylinder 24 drives the linear motion of the wedge block to control the clamping and releasing of the clamp-type clamp 5.

[0037] The wedge block 21 is axially divided into an installation section, a sliding section and an insertion section, 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.

[0038] The clamp stopper 6 serves to guide the pole ear of the soft-pack battery so that the pole ear is in good contact with the pliers-type clamp. The clamp stopper 6 is arranged at the jaws of the pliers-type clamp. The upper and lower end surfaces of the rear part of the clamp stopper 6 are provided with connecting ears 61. The upper connecting ear is connected to the upper plate 12 of the wedge positioning block through the clamp fixing block, and the lower connecting ear is against the front end of the guide pin 4, so that the upper end surface of the guide pin 4 forms a guide slideway for the pliers-type clamp 5 to slide; the clamp stopper 6 is provided with a channel 62 for inserting the battery pole ear, wherein the front end of the channel 62 extends to the side of the clamp stopper, and the end of the channel 62 extends to the jaws of the pliers-type clamp.

[0039] The guide pin 4 serves to guide the clamp-type clamp, making it easier for the tab of the soft-pack lithium battery to enter the clamp-type clamp, so as to achieve good contact between the tab and the clamp-type clamp.

[0040] The front end of the channel 62 has a guiding slope 621 .

[0041] The clamp-type clamp 5 is used to contact the pole ear of the soft-pack lithium battery and conduct voltage and current through the connection of the external circuit; a roller is installed at the rear end of the clamp body of the clamp-type clamp 5, 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 pole ear.

[0042] Embodiment 2 The present invention provides a soft-pack lithium battery independent control clamp-type clamp module: the clamp-type clamp fixing mechanism is a clamp-type clamp installation assembly, which consists of five parts: a wedge positioning block 11, a wedge positioning block upper plate 12, an oil-free bushing 13, a bushing clamp block 14 and a wedge positioning block lower plate 15. The wedge positioning block 11 is connected to the wedge positioning block upper plate 12 on the top and the wedge positioning block lower plate 15 on the bottom. The oil-free bushing 13 is located at the bushing clamp block 14, and the two are located between the wedge positioning block upper plate 12 and the wedge positioning block lower plate 15, and are embedded in the wedge positioning block 11.

[0043] The wedge positioning block 11 is the main part of the clamp-type clamp installation assembly, which guides the wedge block 21, so that the wedge block 21 is connected to the clamp-type clamp 5 through the wedge positioning block 11 to form a good contact; the wedge positioning block upper plate 12 is the main component of the clamp-type clamp installation assembly, which is connected to the cylinder 24 through the cylinder installation block 23; the wedge positioning block lower plate 15 is the main component of the clamp-type clamp installation assembly, which is connected to the linear slider 3; the oil-free bushing 13 and the wedge block 21 produce relative motion, and the bushing clamping block 14 clamps the oil-free bushing 13, so that it cannot move back and forth and can only move relative to the wedge block 21.

[0044] The clamping degree adjustment mechanism 2 of the clamp-type clamp is a wedge block pushing assembly, which consists of four major parts: a wedge block 21, a wedge pushing block 22, a cylinder mounting block 23, and a cylinder 24. One end of the wedge pushing block 22 is connected to the wedge block 21, and the other end is connected to the cylinder 24; one end of the cylinder mounting block 23 is connected between the wedge pushing block 22 and the cylinder 24, and is close to the cylinder 24, and the other end is connected to the upper plate 12 of the wedge positioning block. The wedge block 21 is the main part for controlling the operation of the clamp-type clamp, and the clamping and loosening of the soft-pack battery clamp 5 are controlled by the linear motion of the wedge block 21;

[0045] The sliding base includes a horizontally arranged linear slide rail and a plurality of linear sliders 3 that can slide along the linear slide rail. The linear slider 3 (MGW7C) is connected to the slide rail. A relative number of modules can be assembled according to different numbers of soft-pack batteries. The modules are arranged in parallel through the linear slide rail. This arrangement is convenient for maintenance and replacement. When one of the modules needs to be repaired and replaced, the defective module can be removed and replaced with a spare module.

[0046] The guide pin 4 serves to guide the clamp-type clamp 5, making it easier for the tab of the soft-pack lithium battery to enter the clamp-type clamp 5, so as to achieve good contact between the tab and the clamp-type clamp.

[0047] The clamp-type clamp 5 (reference patent: CN201821936570.1) is used to contact the pole ear of the soft-pack lithium battery and conduct voltage and current through the connection of the external circuit.

[0048] The fixture stopper 6 serves to guide the tab of the soft-pack battery so that the tab is in good contact with the clamp-type fixture.

[0049] The fixture fixing block 7 is used to fix the clamp-type fixture and the fixture stopper.

[0050] Embodiment 3 A soft-pack lithium battery clamping device comprises a sliding base and several sets of independently controlled clamp-type clamp modules for the soft-pack lithium batteries, wherein the sliding base comprises a horizontally arranged linear slide rail and several linear sliders 3 which can slide along the linear slide rail, wherein the linear sliders 3 are slidably installed on the linear slide rail in parallel, and each linear slider is correspondingly installed with a set of independently controlled clamp-type clamp modules for the soft-pack lithium batteries, so that the clamp-type clamp modules are independently arranged in parallel on the linear slide rail.

[0051] Example 4 From Figure 1-4 It can be seen that the soft-pack lithium battery independent control clamp-type clamp module described in the present invention is composed of seven parts, namely, a clamp-type clamp mounting assembly, a wedge block pushing assembly, a linear slider 3 (MGW7C), a guide pin 4, a clamp-type clamp 5, a clamp stop block 6 and a clamp fixing block 7.

[0052] from Figure 5 It can be seen that the clamp-type clamp installation assembly includes five parts: a wedge positioning block 11, a wedge positioning block upper plate 12, an oil-free bushing 13, a bushing clamping block 14 and a wedge positioning block lower plate 15.

[0053] from Figure 6 It can be seen that the wedge block pushing assembly includes four major parts, namely a wedge block 21, a wedge pushing block 22, a cylinder mounting block 23, and a cylinder 24.

[0054] The assembly actions of each unit of the independently controlled clamp type clamp module are described as follows:

[0055] (1) Clamp-type fixture installation assembly: It is the main structure of the soft-pack lithium battery independent control clamp-type fixture module, and serves to connect the wedge block pushing assembly and the clamp-type fixture 5. Figure 5 The wedge positioning block 11 is connected to the upper plate 12 of the wedge positioning block on the top and the lower plate 15 of the wedge positioning block on the bottom. The oil-free bushing 13 is located on the bushing clamp block (above). The two are located between the upper plate 12 of the wedge positioning block and the lower plate 15 of the wedge positioning block, and are embedded in the wedge positioning block 11. The wedge positioning block 11 is the main part of the clamp-type clamp installation assembly, which guides the wedge block 21 so that the wedge block 21 connects the clamp-type clamp 5 through the wedge positioning block 12 to form a good contact; the upper plate 12 of the wedge positioning block is the main component of the clamp-type clamp installation assembly, which is connected to the cylinder 24 through the cylinder installation block 23; the lower plate 15 of the wedge positioning block is the main component of the clamp-type clamp installation assembly and is connected to the linear slider 3; the oil-free bushing 13 and the wedge block 13 generate relative motion, and the bushing clamp block 14 plays the role of clamping the oil-free bushing 13, so that it cannot move back and forth, and can only move relative to the wedge block 13.

[0056] (2) The wedge block push component, the soft-pack lithium battery independently controls the pneumatic structure of the clamp-type clamp module, and plays the role of pushing the wedge block 21. Figure 6, one end of the wedge push block 22 is connected to the wedge block 21, and the other end is connected to the cylinder 24; one end of the cylinder mounting block 23 is connected between the wedge push block 21 and the cylinder 24, and is close to the cylinder 24, and the other end is connected to the wedge positioning block upper plate 12. The wedge block 21 is the main part for controlling the operation of the clamp-type clamp 5, and the clamping and loosening of the soft pack battery clamp 5 are controlled by the linear motion of the wedge block 21; the wedge push block 22 is an important part of the wedge block pushing assembly 1, which is used to connect the wedge block 21 and the cylinder 24; the cylinder mounting block 23 is used to connect the wedge block pushing assembly 12 and the parts of the clamp-type clamp mounting assembly. The cylinder (CJ2B16-12AZ) 24 is used to control the clamping and opening of the clamp-type clamp 5.

[0057] (3) The linear slider 3 is connected to the slide rail and can slide on the slide rail, so as to facilitate the parallel arrangement of multiple soft-pack lithium battery independent control clamp-type clamp modules.

[0058] (4) The small guide pin 4 serves to guide the clamp-type clamp 5, making it easier for the tab of the soft-pack lithium battery to enter the clamp-type clamp 5, so as to achieve good contact between the tab and the clamp-type clamp 5.

[0059] (5) The clamp-type clamp 5 (reference patent: CN201821936570.1) is used to contact the tabs of the soft-pack lithium battery and conduct voltage and current through the connection of the external circuit.

[0060] (6) The fixture stopper 6 serves to guide the tab of the soft-pack battery so that the tab is in good contact with the clamp-type fixture 5.

[0061] (7) The clamp fixing block 7 is used to fix the clamp type clamp 5 and the clamp stopper 6.

[0062] Example 5 Working description of a soft-pack lithium battery clamping device:

[0063] 1) Battery preparation: The positive and negative ears of the battery are in contact with the clamp-type clamp under the action of the clamp block;

[0064] 2) Clamping the pole ear: The cylinder is started, and the wedge pusher pushes the wedge block to move toward the clamp-shaped clamp, so that the clamp-shaped clamp is closed, thereby clamping the battery pole ear to achieve the purpose of connecting the battery;

[0065] 3) Loosen the tab: The cylinder is started, and the wedge push block drives the wedge block to slide back, so that the wedge plate loses its effective effect on the clamp-shaped clamp, and the clamp-shaped clamp opens naturally, thereby loosening the battery tab.

[0066] 4) Multiple soft-pack lithium battery independent control clamp-type clamp modules can be arranged in parallel through a linear slider, and the main cylinder can be started, so that multiple soft-pack lithium battery independent control clamp-type clamp modules can operate simultaneously to clamp and release the battery ears at the same time.

[0067] 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 clamp-type fixture module with independent control of soft-pack lithium batteries, It is characterized in that include: The clamp-type fixture fixing mechanism has a blocking portion, and the blocking portion is provided with a through-hole arranged in a horizontal direction; A clamp-type clamp clamping degree adjustment mechanism comprises a driving device for providing a linear driving force and a pushing member for adjusting the clamp-type clamp clamping degree, wherein the driving device is installed on a first side of a blocking portion; a first end of the pushing member is connected to a linear driving end of the driving device, so that the pushing member is driven by the driving device to linearly reciprocate along the axial direction of a through-hole; a second end of the pushing member passes through the through-hole of the blocking portion and falls on a second side of the blocking portion, forming an insertion end that can be inserted into the clamp-type clamp; The battery pole ear clamping mechanism is installed on the clamp-type clamp fixing mechanism on the second side of the blocking part, 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, and 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, and 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; and a battery tab guide mechanism, which is arranged on the second side of the clamp-type clamp fixing mechanism on the second side of the blocking portion, and includes a clamp stopper for guiding the soft-pack battery tab to be inserted into the jaws of the clamp-type clamp and a clamp fixing block for fixing the clamp stopper, wherein the clamp stopper is arranged at the jaws of the clamp-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 clamp-type clamp; The clamp-type clamp fixing mechanism comprises a wedge positioning block as a blocking part, an upper plate of the wedge positioning block, an oil-free bushing, a bushing clamping block and a lower plate of the wedge positioning block, the wedge positioning block is connected to the upper plate of the wedge positioning block on the top and to the lower plate of the wedge positioning block on the bottom, and a horizontal mounting through hole is provided on the wedge positioning block; the rear end of the oil-free bushing is clamped 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 in the end surface of the first side of the wedge positioning block, and the oil-free bushing is horizontally embedded in 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 clamping degree adjustment mechanism of the clamp-type clamp is a wedge block pushing assembly, which includes a driving device for providing a linear driving force and a pushing member for adjusting the clamping degree of the clamp-type clamp, wherein the driving device includes a cylinder and a cylinder mounting block, and the pushing member includes 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 loosening of the clamp-type clamp; 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.

2. A clamp-type clamp module for independently controlling a soft-pack lithium battery as claimed in claim 1, Features: 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.

3. A clamp-type clamp module for independently controlling a soft-pack lithium battery as claimed in claim 1, Features: The clamp stopper is arranged at the jaws of the pliers-shaped clamp, and connecting ears are provided on the upper and lower end surfaces of the rear part of the clamp stopper. 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 slideway for the pliers-shaped clamp to slide; the clamp stopper is provided with a channel for inserting the battery pole ear, wherein the front end of the channel extends to the side of the clamp stopper, and the end of the channel extends to the jaws of the pliers-shaped clamp.

4. A clamp-type clamp module for independently controlling a soft-pack lithium battery as claimed in claim 3, Features: The front end of the channel is provided with a guiding slope.

5. A soft pack lithium battery clamping device, Features: It comprises a sliding base and several sets of independently controlled clamp-type clamp modules for soft-pack lithium batteries as claimed in any one of claims 1 to 4, wherein the sliding base comprises a horizontally arranged linear slide rail and several linear sliders that can slide along the linear slide rail, the linear sliders are slidably installed on the linear slide rail in parallel, and a set of independently controlled clamp-type clamp modules for soft-pack lithium batteries is correspondingly installed on each linear slider, so that the clamp-type clamp modules are independently arranged in parallel on the linear slide rail.

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