CN217903184U

CN217903184U - Lithium cell processing fixing device

Info

Publication number: CN217903184U
Application number: CN202222008936.1U
Authority: CN
Inventors: 徐强; 矫贺东; 钟祥龙
Original assignee: Cornex New Energy Co ltd
Current assignee: Cornex New Energy Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-25
Anticipated expiration: 2032-07-28

Abstract

The utility model provides a lithium cell processing fixing device belongs to lithium cell processing equipment technical field. The fixing device comprises a base, an installation block, a first clamping assembly, a second clamping assembly, a double-shaft stepping motor and a controller. Installation piece fixed mounting has the working face on the installation piece on the base, and the inside of installation piece has the mounting groove who is the bar, and biax step motor sets up in mounting groove rather than the threaded rod of connecting, has first contact switch on the biax step motor, still has two bar spouts on the working face. The first clamping assembly comprises a first sliding block, a first connecting column, a first moving block and a first clamping plate, and the second clamping assembly comprises a second sliding block, a second connecting column, a second moving block, a guide rod, a sliding rod and a second clamping plate. By adopting the fixing device, the lithium battery placed on the fixing device can be automatically clamped, control and adjustment of control force can be conveniently carried out, and the processing yield is improved.

Description

Lithium battery processing fixing device

Technical Field

The utility model relates to a lithium battery processing equipment technical field, in particular to lithium battery processing fixing device.

Background

With the application of new energy and new energy automobiles in a large quantity, lithium ion power batteries are rapidly developed. In particular, aluminum-casing power batteries are favored by the market because of their advantages of light weight, high energy density, good heat dissipation, etc.

In the correlation technique, in the lithium cell carries out part process, need carry out the centre gripping with lithium cell fixed mounting to operation panel and fix, make things convenient for the staff to assemble processing. The common clamping mode is that two clamping plates which are driven by a stepping motor and can realize adjustable distance are arranged on an operation table, and the lithium battery is clamped and fixed by two sides of a shell of the lithium battery.

Adopt workstation cooperation clamping structure among the correlation technique to fix the lithium cell, it is though can realize when using fixing the centre gripping of lithium cell, but the staff utilizes motor drive grip block to carry out its interval adjustment when interval adjustment mainly based on staff's experience, and unable accurate control centre gripping dynamics if do not in time stop after grip block and the outside butt contact of lithium cell, leads to the lithium cell to produce the damage because of the centre gripping dynamics is too big easily.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a lithium battery processing fixing device can conveniently carry out the control regulation of control power when realizing carrying out automatic centre gripping to the lithium cell of placing it on, improves the processing yield. The technical scheme is as follows:

the embodiment of the utility model provides a lithium cell processing fixing device, include:

a base, a mounting block, a first clamping component, a second clamping component, a double-shaft stepping motor and a controller,

the mounting block is fixedly mounted on the base, a working surface is arranged on the mounting block, a strip-shaped mounting groove is formed in the mounting block, the double-shaft stepping motor is arranged in the middle of the mounting groove, threaded rods are fixedly connected to output shafts at two ends of the double-shaft stepping motor, the two threaded rods are coaxial and are symmetrically arranged relative to the double-shaft stepping motor, a first contact switch is arranged on the double-shaft stepping motor, the first contact switch is convexly arranged on the working surface, two strip-shaped sliding grooves are further formed in the working surface, the two strip-shaped sliding grooves are communicated with the mounting groove and are symmetrically arranged relative to the double-shaft stepping motor, and the two strip-shaped sliding grooves are parallel to the threaded rods and are respectively and correspondingly arranged above the two threaded rods;

the first clamping assembly comprises a first sliding block, a first connecting column, a first moving block and a first clamping plate, the first sliding block is slidably arranged in the mounting groove and is matched and sleeved on one of the threaded rods, the first moving block is slidably arranged on the working surface and is connected with the first sliding block through the first connecting column, the first connecting column is positioned in one of the strip-shaped chutes, the first clamping plate is connected to the first moving block, and the first clamping plate is perpendicular to the working surface and is connected with the strip-shaped chutes;

the second clamping assembly comprises a second sliding block, a second connecting column, a second moving block, a guide rod, a sliding rod and a second clamping plate, the second sliding block is slidably arranged in the mounting groove and is sleeved on another threaded rod in a matching mode, the second moving block is slidably arranged on the working face and passes through the second connecting column to be connected with the second sliding block, the second connecting column is located in another strip-shaped sliding groove, the guide rod is arranged between the second moving block and the first clamping plate in a parallel and slidable mode, two ends of the guide rod are located on two sides of the second moving block respectively, the second clamping plate is parallel to the first clamping plate and connected with one end of the guide rod, the second clamping plate is located between the second clamping plate and the second moving block, a first spring is sleeved on the guide rod, two ends of the first spring are respectively connected with the second clamping plate and the second moving block, a sliding pipe is arranged at the top of the second moving block in a butting mode, a conductor is parallel to the guide rod, the sliding pipe is slidably arranged in the sliding pipe, a sliding rod is further arranged on the sliding pipe, a control bolt is arranged on the sliding rod, one end of the sliding rod, and a stepping motor is electrically connected with a stepping motor, and a stepping motor is arranged on the other end of the stepping motor, and a stepping motor is electrically connected with the stepping motor, and a stepping motor.

Optionally, the second clamping assembly includes two guide rods, the two guide rods are arranged at intervals in a direction perpendicular to the working surface and are symmetrically arranged relative to a central line of the second clamping plate, and the two guide rods are respectively sleeved with the first spring.

Optionally, one end of the conductor piece is detachably connected with one end of the sliding rod.

Optionally, the conductor piece is an elastic conductor piece, and the other end of the conductor piece is at the same height as the other end of the guide rod with a larger distance from the working surface.

Optionally, an insert rod is inserted into the first moving block in a slidable manner, the insert rod is parallel to the bar-shaped sliding groove, the first clamping plate is vertically connected with the insert rod, a second spring is further sleeved on the insert rod, two ends of the second spring are respectively abutted to the first clamping plate and the first moving block, the rigidity of the second spring is smaller than that of the first spring, a second contact switch is arranged on one side face, facing the first clamping plate, of the first moving block, the second contact switch is electrically connected with the controller, the controller is configured to be capable of enabling the first clamping plate to be in contact with the second contact switch, and the double-shaft stepping motor is controlled to stop when the rotation angle of the double-shaft stepping motor is smaller than a preset threshold value.

Optionally, the lithium battery processing fixing device further comprises a sleeve, a connecting rod matched with the sleeve is arranged on the base, the sleeve is sleeved on the connecting rod, and two ends of the sleeve are respectively connected with the base and the mounting block in a butting mode.

Optionally, the lithium battery processing fixing device comprises a plurality of groups of sleeves, and the length of each group of sleeves is different from each other.

Optionally, lithium cell processing fixing device still includes the rubber lantern ring, the rubber lantern ring correspond cup joint in the sleeve is outside, the length of rubber lantern ring with the sleeve phase-match.

The embodiment of the utility model provides a beneficial effect that technical scheme brought includes at least:

when needs carry out the centre gripping fixed to the lithium cell, the staff can place the lithium cell in the working face middle part of installation piece to utilize the lithium cell touch and press first contact switch. At the moment, the controller controls the double-shaft stepping motor to start after receiving a signal of the first contact switch, and the output shafts at the two ends of the double-shaft stepping motor further drive the two threaded rods to rotate, so that the first sliding block and the second sliding block which are sleeved on the two threaded rods in a driving fit manner slide in the strip-shaped mounting groove and are close to each other. And then drive first movable block and the second movable block that is located on the working face and move in opposite directions and be close the lithium cell by both sides, finally carry out the centre gripping fixedly by both sides to the lithium cell through first grip block and second grip block. After the second clamping plate is contacted with the lithium battery, the first spring is compressed under the action of stress, and the guide rod can slide towards one side of the second moving block back to the lithium battery. And after the other end of the guide rod is contacted with the conductor piece extending downwards on the slide rod, the controller receives a conducting signal to control the double-shaft stepping motor to stop, so that the automatic clamping of the lithium battery is completed. When the fixing device does not work, the guide rod can reset along with the second clamping plate under the action of the elastic force of the first spring.

Adopt this lithium cell processing fixing device, according to the outside atress ability of the lithium cell of different specifications, the staff can correspond the relative position of adjusting slide bar in the slide duct, and then adjusts the interval of conductor piece and the guide bar other end, realizes adjusting the compression deformation volume of first spring when guide bar and conductor piece contact and biax step motor stop, finally adjusts the effect to the centre gripping dynamics of lithium cell. Can conveniently carry out the control regulation of control power when realizing carrying out automatic centre gripping to the lithium cell of placing on it, avoid pressing from both sides bad fixed lithium cell product, effectively improve the processing yield.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a lithium battery processing and fixing device provided in an embodiment of the present invention;

fig. 2 is a schematic partial structural view of a first clamping assembly provided in an embodiment of the present invention;

fig. 3 is a schematic partial structural view of a second clamping assembly provided in an embodiment of the present invention;

fig. 4 is a control structure block diagram of the lithium battery processing fixing device provided by the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is an overall structure schematic diagram of a lithium battery processing fixing device provided by the embodiment of the present invention. Fig. 2 is a schematic partial structural view of a first clamping assembly according to an embodiment of the present invention. Fig. 3 is a schematic partial structural view of a second clamping assembly according to an embodiment of the present invention. Fig. 4 is a control structure block diagram of the lithium battery processing fixing device provided by the embodiment of the present invention. As shown in fig. 1 to 4, by practice, the present applicant provides a lithium battery processing fixture including a base 1, a mounting block 2, first and

second clamping assemblies

3 and 4, a biaxial stepping motor 5, and a controller 6.

Wherein, the installation block 2 is fixedly installed on the base 1, and the installation block 2 is provided with a working surface 2a. The inside of installation piece 2 has the mounting groove 21 that is the bar, and biax step motor 5 sets up in mounting groove 21's middle part, equal fixedly connected with threaded rod 22 on the output shaft at 5 both ends of biax step motor, and two threaded rods 22 are coaxial and for 5 symmetrical arrangement of biax step motor. The biaxial stepping motor 5 is provided with a first contact switch 51, and the first contact switch 51 is convexly arranged on the working surface 2a. The working face 2a is further provided with two strip-shaped sliding grooves 23, the two strip-shaped sliding grooves 23 are communicated with the mounting groove 21 and are symmetrically arranged relative to the double-shaft stepping motor 5, and the two strip-shaped sliding grooves 23 are parallel to the threaded rods 22 and are respectively and correspondingly arranged above the two threaded rods 22.

The first clamping assembly 3 includes a first slider 31, a first connecting post 32, a first moving block 33, and a first clamping plate 34. The first slider 31 is slidably disposed in the mounting groove 21 and is fitted and sleeved on one of the threaded rods 22. The first moving block 33 is slidably disposed on the working surface 2a and connected to the first slider 31 through the first connecting column 32. The first connecting column 32 is located in one of the strip-shaped sliding grooves 23, the first clamping plate 34 is connected to the first moving block 33, and the first clamping plate 34 is perpendicular to the working surface 2a and is connected with the strip-shaped sliding groove 23.

The second clamping assembly 4 includes a second slider 41, a second connecting column 42, a second moving block 43, a guide bar 44, a slide bar 45, and a second clamping plate 46. The second sliding block 41 is slidably disposed in the mounting groove 21 and is sleeved on the other threaded rod 22 in a matching manner, and the second moving block 43 is slidably disposed on the working surface 2a and is connected with the second sliding block 41 through the second connecting column 42. The second connecting column 42 is located in the other strip-shaped sliding groove 23, and the guide rod 44 is parallel to the strip-shaped sliding groove 23 and slidably inserted into the second moving block 43. The two ends of the guide rod 44 are respectively located at the two sides of the second movable block 43, the second clamping plate 46 is parallel to the first clamping plate 34 and is connected with one end of the guide rod 44, the second clamping plate 46 is located between the second clamping plate 46 and the second movable block 43, the guide rod 44 is sleeved with a first spring 441, and the two ends of the first spring 441 are respectively abutted to the second clamping plate 46 and the second movable block 43. The top of the second moving block 43 is provided with a sliding tube 47, the sliding rod 45 is parallel to the guide rod 44, the sliding rod 45 is slidably installed in the sliding tube 47, and the sliding tube 47 is further provided with a locking bolt 471 for locking the sliding rod 45. One end of the slide rod 45 and the other end of the guide rod 44 are located on the same side of the second moving block 43, and one end of the slide rod 45 is vertically connected to a conductor piece 48 extending toward the guide rod 44. The conductor piece 48, the first contact switch 51, and the biaxial stepping motor 5 are all electrically connected to the controller 6, and the controller 6 is configured to be able to control the biaxial stepping motor 5 to stop when the other end of the guide bar 44 is in contact with the conductor piece 48.

The embodiment of the utility model provides an in, when needs carry out the centre gripping fixed to the lithium cell, the staff can place the lithium cell in the working face 2a middle part of installation piece 2 to utilize the lithium cell touch and press first contact switch 51. At this time, the controller 6 controls the dual-axis stepping motor 5 to start after receiving a signal of the first contact switch 51, and the output shafts at the two ends of the dual-axis stepping motor further drive the two threaded rods 22 to rotate, so that the first slider 31 and the second slider 41 which are sleeved on the two threaded rods 22 in a driving and matching manner slide in the strip-shaped mounting groove 21 and approach to each other. And then the first moving block 33 and the second moving block 43 on the working surface 2a are driven to move oppositely and approach the lithium battery from two sides, and finally the lithium battery is clamped and fixed from two sides through the first clamping plate 34 and the second clamping plate 46. After the second clamping plate 46 contacts the lithium battery, the first spring 441 is compressed under the action of stress, and the guide rod 44 also slides toward the side of the second movable block 43 opposite to the lithium battery. And after the other end of the guide rod 44 is contacted with the conductor piece 48 extending downwards on the sliding rod 45, the controller 6 receives the conducting signal to control the double-shaft stepping motor 5 to stop, and the automatic clamping of the lithium battery is completed. When the fixing device is not operated, the guide rod 44 is returned to follow the second clamping plate 46 by the elastic force of the first spring 441. Adopt this lithium cell processing fixing device, according to the outside atress ability of the lithium cell of different specifications, the staff can correspond the relative position of adjusting slide bar 45 in slide pipe 47, and then adjusts the interval of conductor piece 48 and the guide bar 44 other end, realizes adjusting the compression deformation volume of first spring 441 when guide bar 44 and conductor piece 48 contact and biax step motor 5 stop, finally adjusts the effect to the centre gripping dynamics of lithium cell. Can conveniently carry out the control regulation of control power when realizing carrying out automatic centre gripping to the lithium cell of placing on it, avoid pressing from both sides bad fixed lithium cell product, effectively improve the processing yield.

It should be noted that, in the embodiment of the present invention, the controller 6 may be a computer controller disposed outside the fixing device, or may be a PCB control board fixedly disposed on the base 1 of the fixing device or other structures, as long as the aforesaid signal transceiving can be realized to control the start and stop of the biaxial stepping motor 5, the present invention is not limited to its actual form, the electrical connection mode with each component, and the installation position.

Optionally, the second clamping assembly 4 includes two guide rods 44, the two guide rods 44 are arranged at intervals along a direction perpendicular to the working surface 2a and are symmetrically arranged relative to a center line of the second clamping plate 46, and the first spring 441 is sleeved on each of the two guide rods 44. Illustratively, in order to ensure stable clamping of the lithium battery, the second clamping plate 46 tends to have a certain length and thickness, while the compression driving structure is engaged by providing two guide rods 44 and a first spring 441 along the center line thereof. It is possible to ensure that the second clamping plate 46 is uniformly stressed during the driving process by the guide bar 44, thereby ensuring that the clamping force applied thereto when contacting the lithium battery is more uniform. And the two guide rods 44 are used for driving, so that the stress received by a single guide rod 44 can be reduced, and the whole service life of the fixing device is prolonged.

Optionally, one end of the conductor strip 48 is detachably connected to one end of the slide bar 45. Illustratively, in the embodiment of the present invention, the conductor piece 48 is detachably mounted to the end of the sliding rod 45 by means of bolt fastening. The fixing device can be detached for maintenance and preservation when not in use, or replaced after long-time use, and the whole service life and the practicability of the fixing device are further improved.

Alternatively, the conductor piece 48 is an elastic conductor piece 48, and the other end of the conductor piece 48 is flush with the other end of the guide bar 44 spaced apart from the working surface 2a by a large distance. Exemplarily, in the embodiment of the present invention, the conductor piece 48 is made of an elastic copper sheet 48, and when contacting with one end of the guide bar 44, the conductor piece has a strong bending resistance, and can be adaptively bent to a certain extent and restored after the guide bar 44 is reset, so as to avoid the contact failure caused by the deformation after contacting for a certain number of times, and further improve the overall service life and the working stability of the fixing device.

Optionally, an insert rod 35 is slidably inserted into the first moving block 33, the insert rod 35 is parallel to the bar-shaped sliding groove 23, the first clamping plate 34 is vertically connected to the insert rod 35, a second spring 351 is further sleeved on the insert rod 35, two ends of the second spring 351 are respectively abutted to the first clamping plate 34 and the first moving block 33, the rigidity of the second spring 351 is smaller than that of the first spring 441, a second contact switch 36 is arranged on a side surface of the first moving block 33 facing the first clamping plate 34, the second contact switch 36 is electrically connected to the controller 6, and the controller 6 is configured to be capable of controlling the dual-axis stepping motor 5 to stop when the first clamping plate 34 contacts the second contact switch 36 and the rotation angle of the dual-axis stepping motor 5 is smaller than a preset threshold value. Exemplarily, in the embodiment of the present invention, the inside of the controller 6 may preset a minimum angle rotation threshold of the dual-axis stepping motor, and after the first clamping plate 34 contacts with the lithium battery, the contact rod 35 may contract towards the inside of the first moving block 33, and meanwhile, the second spring 351 may also contract under the stress of the first clamping plate 34. The second spring 351 can serve to reset the first clamping plate 34 and provide a clamping force when clamping the lithium battery. In addition, the rigidity of the second spring 351 is smaller than that of the second spring 351, and after the first holding plate 34 and the second holding plate 46 are simultaneously in contact with the lithium battery, the second spring 351 is contracted preferentially, so that the first holding plate 34 approaches the first moving block 33 first and is in contact with the second contact switch 36. At this time, if the rotation angle of the dual-axis stepping motor does not reach the preset minimum angle rotation threshold, it is proved that the hand of the worker may be clamped between the lithium battery and the first clamping plate 34 or the second clamping plate 46, which results in the first clamping plate 34 contacting the second contact switch 36 in advance. At this time, the controller 6 stops the dual-shaft stepping motor 5 to prevent further clamping from causing clamping injury to the worker. Meanwhile, the controller 6 can also send an alarm signal to the outside at the same time, and other personnel are called to rescue the clamped staff, so that the working safety of the fixing device is improved.

Optionally, lithium cell processing fixing device still includes sleeve 7, has on the base 1 with sleeve 7 assorted connecting rod 11, sleeve 7 cup joints on connecting rod 11, the both ends of sleeve 7 respectively in base 1 and installation piece 2 looks butt. Exemplarily, in the embodiment of the utility model provides an in, realize assembly connection through peripheral hardware sleeve 7 and connecting rod 11 complex mode between installation piece 2 and the base 1, can carry out the components of a whole that can function independently when not using and dismantle maintenance and change, further improve fixing device's whole life.

Optionally, the lithium battery processing fixing device comprises a plurality of sets of sleeves 7, and the lengths of the sleeves 7 of each set of sleeves 7 are different from each other. Illustratively, in the embodiment of the utility model provides an in, through setting up the multiunit sleeve 7 that length is different, can change different sleeve 7 with the height of the adjusting fixture device installation piece 2 of adaptability when using according to staff's height, make the staff can labour saving and time saving go on unloading operation, improve the efficiency of lithium cell processing production.

Optionally, lithium cell processing fixing device still includes rubber lantern ring 71, and rubber lantern ring 71 corresponds to cup joint in the sleeve 7 outside, and the length of rubber lantern ring 71 and sleeve 7 phase-match. Exemplarily, in the embodiment of the present invention, by additionally covering the sleeve 7 with a rubber sleeve ring 71, a shock absorbing function can be achieved between the mounting block 2 and the base 1, and the overall service life of the fixing device is further prolonged.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

The above description is only an optional embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a lithium cell processing fixing device which characterized in that includes: a base (1), an installation block (2), a first clamping component (3) and a second clamping component (4), a double-shaft stepping motor (5) and a controller (6),

the mounting block (2) is fixedly mounted on the base (1), a working face (2 a) is arranged on the mounting block (2), a strip-shaped mounting groove (21) is formed in the mounting block (2), the double-shaft stepping motor (5) is arranged in the middle of the mounting groove (21), threaded rods (22) are fixedly connected to output shafts at two ends of the double-shaft stepping motor (5), the two threaded rods (22) are coaxial and are symmetrically arranged relative to the double-shaft stepping motor (5), a first contact switch (51) is arranged on the double-shaft stepping motor (5), the first contact switch (51) is convexly arranged on the working face (2 a), two strip-shaped sliding grooves (23) are further arranged on the working face (2 a), the two strip-shaped sliding grooves (23) are communicated with the mounting groove (21) and are symmetrically arranged relative to the double-shaft stepping motor (5), and the two strip-shaped sliding grooves (23) are parallel to the threaded rods (22) and are correspondingly arranged above the two threaded rods (22) respectively;

the first clamping assembly (3) comprises a first sliding block (31), a first connecting column (32), a first moving block (33) and a first clamping plate (34), the first sliding block (31) is slidably arranged in the mounting groove (21) and is matched and sleeved on one of the threaded rods (22), the first moving block (33) is slidably arranged on the working surface (2 a) and is connected with the first sliding block (31) through the first connecting column (32), the first connecting column (32) is located in one of the strip-shaped sliding chutes (23), the first clamping plate (34) is connected onto the first moving block (33), and the first clamping plate (34) is perpendicular to the working surface (2 a) and is connected with the strip-shaped sliding chute (23);

the second clamping assembly (4) comprises a second sliding block (41), a second connecting column (42), a second moving block (43), a guide rod (44), a sliding rod (45) and a second clamping plate (46), the second sliding block (41) is slidably arranged in the mounting groove (21) and is matched and sleeved on the other threaded rod (22), the second moving block (43) is slidably arranged on the working surface (2 a) and is connected with the second sliding block (41) through the second connecting column (42), the second connecting column (42) is positioned in the other strip-shaped sliding groove (23), the guide rod (44) and the strip-shaped sliding groove (23) are parallelly and slidably arranged on the second moving block (43), two ends of the guide rod (44) are respectively positioned on two sides of the second moving block (43), the second clamping plate (46) is parallel to the first clamping plate (34) and is connected with one end of the guide rod (44), the second clamping plate (46) is positioned between the second clamping plate (46) and the second clamping plate (43), the first clamping plate (46) and the second moving block (441) is sleeved with the second spring (43), and the second clamping plate (441) is connected with the second moving block (43), the top of the second moving block (43) is provided with a sliding tube (47), the sliding rod (45) is parallel to the guide rod (44), the sliding rod (45) is slidably mounted in the sliding tube (47), a locking bolt (471) used for locking the sliding rod (45) is further arranged on the sliding tube (47), one end of the sliding rod (45) and the other end of the guide rod (44) are located on the same side of the second moving block (43), one end of the sliding rod (45) is vertically connected with a conductor sheet (48) extending towards the guide rod (44), the conductor sheet (48), the first contact switch (51) and the double-shaft stepping motor (5) are electrically connected with the controller (6), and the controller (6) is configured to be capable of controlling the double-shaft stepping motor (5) to stop when the other end of the guide rod (44) is in contact with the conductor sheet (48).

2. The lithium battery processing fixing device as claimed in claim 1, wherein the second clamping assembly (4) comprises two guide rods (44), the two guide rods (44) are arranged at intervals along a direction perpendicular to the working surface (2 a) and are symmetrically arranged relative to a center line of the second clamping plate (46), and the first spring (441) is sleeved on each of the two guide rods (44).

3. The lithium battery processing fixture as claimed in claim 2, characterized in that one end of the conductor strip (48) is detachably connected to one end of the slide bar (45).

4. The lithium battery processing and fixing device as claimed in claim 3, characterized in that the conductor strip (48) is an elastic conductor strip (48), and the other end of the conductor strip (48) is at the same height as the other end of the guide bar (44) which is at a larger distance from the working surface (2 a).

5. The lithium battery processing fixing device according to claim 1, wherein an insertion rod (35) is slidably inserted into the first moving block (33), the insertion rod (35) is parallel to the strip-shaped sliding groove (23), the first clamping plate (34) is vertically connected with the insertion rod (35), a second spring (351) is further sleeved on the insertion rod (35), two ends of the second spring (351) are respectively abutted against the first clamping plate (34) and the first moving block (33), the rigidity of the second spring (351) is smaller than that of the first spring (441), a side surface of the first moving block (33) facing the first clamping plate (34) is provided with a second contact switch (36), the second contact switch (36) is electrically connected with the controller (6), and the controller (6) is configured to be capable of contacting the second contact switch (36) at the first clamping plate (34), and the rotation angle of the biaxial stepping motor (5) is smaller than a preset threshold value to control the stop of the biaxial stepping motor (5).

6. The lithium battery processing and fixing device according to claim 5, further comprising a sleeve (7), wherein the base (1) is provided with a connecting rod (11) matched with the sleeve (7), the sleeve (7) is sleeved on the connecting rod (11), and two ends of the sleeve (7) are respectively abutted against the base (1) and the mounting block (2).

7. The lithium battery processing fixing device according to claim 6, characterized in that the lithium battery processing fixing device comprises a plurality of sets of sleeves (7), and the lengths of the sleeves (7) of each set of sleeves (7) are different from each other.

8. The lithium battery processing fixing device as claimed in claim 6, further comprising a rubber collar (71), wherein the rubber collar (71) is sleeved outside the sleeve (7), and the length of the rubber collar (71) is matched with that of the sleeve (7).