High temperature pressurized formation fixture for rectangular batteries

Abstract

The high temperature pressurized formation fixture for angular batteries includes: a support unit including a frame and a transverse movement mechanism, the transverse movement mechanism is installed on the top of the frame, the transverse movement mechanism includes a transverse fixed part and a transverse movable part, the transverse fixed part is fixedly connected to the top of the frame, the transverse movable part is installed on the fixed part, the driving end of the transverse movable part is connected to the heating and refueling unit, and is used to adjust the position of the heating and pressurizing mechanism on the frame; the heating and pressurizing mechanism is arranged on the movable part of the transverse movement mechanism, including a battery clamping mechanism, a pressurizing control mechanism and a heating mechanism; and a formation test unit including a probe mechanism and a power supply box. The beneficial effects of the present invention are: solving the problem that angular batteries cannot be subjected to high temperature pressurized formation; solving the problem that angular batteries cannot be taken and placed without air bags; solving the problem that the taking and placing of batteries interferes with the upper probe mechanism; solving the problem that the probe cannot be accurately positioned with the battery tab.

Description

Technical Field

[0001] The invention relates to the field of battery formation, in particular to a high-temperature pressurized formation fixture for angular batteries. Background Art

[0002] The angular battery is an upgrade of the soft pack battery technology. By using a stainless steel battery shell and a new manufacturing process, the battery capacity is increased under the same volume. Because there is an exhaust hole between the positive and negative electrodes of the angular battery, the exhaust hole is in an open state during the formation, so the positive and negative electrodes of the angular battery need to face upward. The traditional high-temperature pressurized formation fixture is not suitable for the high-temperature pressurized formation process of the angular battery. Therefore, it is necessary to design a set of high-temperature pressurized formation fixtures for angular batteries. Summary of the invention

[0003] The technical problem to be solved by the present invention is that: since the positive and negative electrodes of the angular battery need to be formed with the direction of the battery facing upward, the battery will interfere with the probe mechanism above when it is placed in the fixture. Since the pole ears of the angular battery are small, how can the probe be accurately positioned with the battery? Since the angular battery has no air pocket, how can the battery be taken in and out of the fixture.

[0004] The high temperature pressurized formation fixture for rectangular batteries of the present invention is characterized by comprising:

[0005] The support unit includes a frame and a transverse movement mechanism. The transverse movement mechanism is installed on the top of the frame. The transverse movement mechanism includes a transverse movement fixed part and a transverse movement movable part. The transverse movement fixed part is fixedly connected to the top of the frame. The transverse movement movable part is installed on the fixed part. The driving end of the transverse movement movable part is connected to the heating and oiling unit for adjusting the position of the heating and pressurizing mechanism on the frame.

[0006] The heating and pressurizing mechanism is arranged on the movable part of the transverse movement mechanism, and includes a battery clamping mechanism, a pressurizing control mechanism and a heating mechanism, wherein the supporting part of the battery clamping mechanism is installed on the transverse movement movable part and moves synchronously with the transverse movement movable part, the supporting part of the battery clamping part is installed with the clamping part, and the clamping part is axially provided with a clamping grid for clamping the battery; the pressurizing control mechanism is arranged at the end of the battery clamping part, and the pressurizing end of the pressurizing control mechanism is connected to the clamping part of the battery clamping mechanism, and is used to adjust the size of the clamping grid to clamp or loosen the battery placed in the clamping grid; the heating mechanism is arranged on the clamping part, and is used to heat the battery placed in the clamping grid;

[0007] And a formation test unit, including a probe mechanism and a power box, the probe mechanism includes a probe lifting part, a probe spacing adjustment mechanism and a probe assembly, the probe lifting part is installed on the transverse movable part, and is used to adjust the longitudinal height of the probe spacing adjustment mechanism; the probe spacing adjustment mechanism is installed on the lifting movable part of the probe lifting part and is suspended above the heating and pressurizing mechanism, and is used to adjust the spacing between probes to adapt to different types of batteries; the probe assembly is arranged on the side of the probe spacing adjustment mechanism facing the heating and pressurizing mechanism, and is used to contact and connect with the battery clamped in the clamping block; the power box is installed at the lower part of the frame, and the power transmission end of the power box is electrically connected to the power supply end of the probe, and is used to perform formation testing on the battery.

[0008] The transverse fixed part of the transverse mechanism includes a fixed base plate and a guide rail, and the transverse movable part includes a rodless cylinder, a slider and a limit block. The fixed base plate is mounted on the top of the frame, and the guide rail is horizontally laid on the surface of the fixed base plate; the rodless cylinder is installed on the fixed base plate, and the telescopic end of the rodless cylinder is kept arranged along the axial direction of the guide rail, and the telescopic end of the rodless cylinder is connected to the heating and pressurizing mechanism; the slider is slidably installed on the guide rail, and the slider is fixedly connected to the heating and pressurizing mechanism, so that the heating and pressurizing mechanism can move back and forth in a straight line along the axial direction of the guide rail under the drive of the rodless cylinder; the limit block is arranged on the fixed base plate, which is used to limit the movement stroke of the rodless cylinder.

[0009] The battery clamping part includes a frame and an aluminum plate assembly, the frame includes a mounting base plate, a head support base plate, a middle support base plate, a tail support base plate and an aluminum plate assembly guide shaft; the pressure control mechanism includes a pressure mechanism and a pressure detection mechanism; the head support base plate, the middle support base plate and the tail support base plate are arranged vertically on the mounting base plate in sequence; the two ends of the aluminum plate assembly guide shaft are respectively arranged on the middle support base plate and the tail support base plate; the aluminum plate assembly is sleeved on the aluminum plate assembly guide shaft, and the aluminum plate assemblies are kept parallel to each other and linked to each other, and adjacent aluminum plate assemblies are arranged A clamping block is left between the parts; a heating mechanism is arranged on each aluminum plate assembly for heating the battery in the clamping block; the pressurizing mechanism is arranged on the head support base plate, and the pressurizing end of the pressurizing mechanism passes through the middle support base plate and is connected with the outermost aluminum plate assembly of the head, and is used to drive the aluminum plate assembly to move back and forth along the axial straight line of the aluminum plate assembly guide shaft to adjust the size of the clamping block; the pressure detection mechanism is arranged on the tail support base plate, and the detection end of the pressure detection mechanism is in contact with and connected to the outermost aluminum plate assembly of the tail, and is used to detect the pressure exerted on the aluminum plate assembly.

[0010] The probe lifting part of the probe mechanism includes a lifting cylinder, a moving base plate, a column and a top base plate, wherein the top base plate is horizontally mounted above the fixed base plate through the column; the lifting cylinder is arranged on the moving base plate, and the cylinder output end is fixedly connected to the top base plate; the moving base plate is arranged on the column between the top base plate and the fixed base plate, and is slidably connected to the column, so that the moving base plate moves up and down along the column driven by the lifting cylinder;

[0011] The probe spacing adjustment mechanism is installed on the moving substrate, including a spacing mounting frame and a spacing adjustment part, the spacing mounting frame includes a front substrate, a rear substrate, a side substrate, a support connecting shaft, a horizontal guide shaft mounting block and a probe positioning shaft; the spacing adjustment part includes a horizontal guide shaft, a pair of vertical adjustment shafts, a spacing holding block and a gear rack mechanism; the front substrate and the rear substrate are respectively arranged at the two ends of the side substrate, and form a rectangular frame structure with the side substrate, the front substrate and the rear substrate are provided with at least one long waist hole, and the long waist holes are located at the same horizontal height; the two ends of the support connecting shaft are respectively arranged on the front substrate and the rear substrate, and a number of horizontal guide shaft mounting blocks are sleeved on the support connecting shaft for fixing the horizontal guide shaft; the gear rack mechanism includes a rack and a gear meshing with the rack, the rack is installed on the front and rear substrates, and along the long waist hole axis The two vertical adjustment shafts are parallel, and the two ends of the vertical adjustment shafts are respectively passed through the long waist holes of the front and rear substrates and fixedly connected to the gears on the same side; the two ends of the horizontal guide shaft are respectively fixedly mounted on the corresponding horizontal guide shaft mounting blocks, so that the horizontal guide shaft can move axially along the supporting connection shaft; the probe positioning shaft is arranged at the bottom of the horizontal guide shaft mounting block, and the probe positioning shaft cooperates with the probe positioning shaft sleeve on the aluminum plate assembly, so that the probe and the battery pole ear on the aluminum plate can be positioned; the probe assembly is arranged on the vertical adjustment shaft and vertically arranged on the horizontal guide shaft, and the probe assembly is screwed with the vertical adjustment shaft and slidably connected with the horizontal guide shaft, so that the probe assembly can move in two directions along the horizontal guide shaft and the vertical adjustment shaft; the spacing maintaining block is arranged on the probe assembly, so that the spacing between the probe assembly and the aluminum plate assembly remains consistent;

[0012] The probe assembly includes a mounting support and a probe, wherein the mounting support is fixed on a vertical adjustment shaft and vertically arranged on a horizontal guide shaft, and the mounting support is threadedly connected to the vertical adjustment shaft and slidably connected to the horizontal guide shaft, so that the mounting support can move in two directions along the horizontal guide shaft and the vertical adjustment shaft; the probe is arranged at the bottom of the mounting support and faces the clamping block of the heating and pressurizing mechanism and corresponds one to one with the battery in the clamping block.

[0013] The pressurizing mechanism includes a pressurizing cylinder, a floating joint, a pressurizing support shaft, a pressurizing guide shaft, a pressurizing push plate and a buffer mechanism. The pressurizing cylinder is installed on the first side of the head support base plate; one side of the floating joint is arranged on the pressurizing cylinder output shaft, and the other side is arranged on the pressurizing push plate; one end of the pressurizing support shaft is installed on the head support base plate, and the other end is installed on the middle support base plate, and the pressurizing support shafts are kept parallel to each other; the pressurizing guide shaft is arranged on the second side of the pressurizing push plate, and the other end of the pressurizing guide shaft is connected to the aluminum plate assembly through the buffer mechanism.

[0014] The buffer mechanism includes a first spring push plate, a pressure spring and a second spring push plate. The first spring push plate and the second spring push plate are slidably arranged on the guide shaft of the aluminum plate assembly in parallel with each other; the pressure spring is arranged between the first spring push plate and the second spring push plate; the second spring push plate is connected to the outermost aluminum plate assembly of the head.

[0015] The aluminum plate assembly includes an aluminum plate support block, a battery horizontal positioning mechanism, a battery height positioning mechanism, an aluminum plate and a probe positioning sleeve. The aluminum plate is vertically sleeved on the guide shaft of the aluminum plate assembly through the aluminum plate support block at the end, and the aluminum plates are kept parallel to each other, and a clamping block for accommodating the battery is left between adjacent aluminum plates. The upper edge of the aluminum plate is embedded with a probe positioning sleeve that can cooperate with the probe positioning shaft; the battery horizontal positioning mechanism, the battery height positioning mechanism, and the heating mechanism are all arranged on the aluminum plate, wherein:

[0016] The battery horizontal positioning mechanism includes a positioning plate guide shaft, a horizontal positioning plate, a guide shaft support, a positioning adjustment rod, a belt transmission assembly and two sets of screw transmission assemblies, and the screw transmission assembly includes a screw guide shaft, a transmission screw pair and a screw support;

[0017] The mounting support is arranged at the bottom of the aluminum plate; the positioning plate guide shaft is arranged on the guide shaft support; the horizontal positioning plate is slidably arranged on the positioning plate guide shaft, so that the horizontal positioning plate can move horizontally along the axial direction of the positioning plate guide shaft; the moving parts of the two sets of screw drive assemblies are connected to each other by positioning adjustment rods, and the positioning adjustment rods are supported at the bottom of the horizontal positioning plate; the power input ends of the two sets of screw drive assemblies are connected by belts of the belt drive assembly, so as to realize the synchronous rotation of the two sets of screw drive assemblies to drive the moving parts to move;

[0018] The battery height positioning mechanism includes a height positioning guide shaft, a height positioning plate, a spring and a height driving device, wherein the height positioning guide shaft is arranged at the bottom of the aluminum plate; the spring is sleeved on the height positioning guide shaft; the height positioning plate is arranged on the height positioning guide shaft and moves up and down along the height positioning guide shaft; the height driving device is installed on the mounting base plate, and the lifting end of the height driving device is in contact and connected with the pushing part of the height positioning plate, so that the height positioning plate moves up and down along the height positioning guide shaft driven by the lifting end of the height driving device to push out the battery in the clamping block.

[0019] The belt drive assembly includes a synchronous wheel and a synchronous belt; the screw drive assembly includes a screw support, a screw guide shaft and a transmission screw pair; the screw support is respectively arranged on the middle support base plate and the tail support base plate, and is used to support the screw of the transmission screw pair; the screw guide shaft is arranged on the screw support, and the screw guide shaft is kept parallel to the screw; the synchronous wheel is fixed on the screws of the two transmission screw pairs; the two ends of the positioning adjustment rod are respectively connected to the moving parts of the transmission screw pair on the same side, and are in contact with the battery horizontal positioning plate; the synchronous belt is set on the synchronous wheels of the two sets of screw drive assemblies, and is used to realize the synchronous transmission of the synchronous wheels of the two sets of screw drive assemblies.

[0020] The height driving device includes a lifting cylinder, a cylinder top plate, a cylinder top plate guide shaft and a linear bearing. The lifting cylinder is arranged on a mounting base plate; the cylinder top plate is arranged on an output end of the cylinder and contacts with a height positioning plate, so as to push the height positioning plate up and down; the cylinder top plate guide shaft is embedded in the mounting base plate; the lower end of the cylinder top plate guide shaft is inserted into a linear bearing, the two are slidably connected, and the upper end is fixedly connected to the cylinder top plate, so as to realize a sliding connection between the cylinder top plate and the mounting base plate.

[0021] The pressurization detection mechanism includes a pressure sensor, a pressure detection plate, a height adjustment block, and reinforcing ribs. The pressure sensor is arranged on the height adjustment block, the height adjustment block is arranged on the tail support substrate, the pressure detection plate is arranged on the pressure sensor, and the other side is in contact with the aluminum plate assembly, and the reinforcing ribs are vertically arranged on the tail support substrate and the mounting substrate.

[0022] The beneficial effects of the present invention are:

[0023] 1) The problem that angular batteries cannot be processed under high temperature and pressure is solved;

[0024] 2) Solved the problem that the corner battery cannot be taken out and put in because there is no air bag;

[0025] 3) Solved the problem of interference between battery removal and the upper probe mechanism;

[0026] 4) The problem that the probe cannot be accurately positioned with the battery tab is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1a This is a structural diagram of a high-temperature pressurized formation fixture for a rectangular battery according to the present invention;

[0028] Figure 1 It is a schematic front view of the structure of the present invention;

[0029] Figure 2 It is a schematic cross-sectional view of the heating and pressurizing mechanism structure of the present invention;

[0030] Figure 3 It is a schematic cross-sectional view of the pressurizing mechanism structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure axial view of the pressure detection mechanism of the present invention;

[0032] Figure 5 It is a front view schematic diagram of the aluminum plate assembly structure of the present invention;

[0033] Figure 6 It is a schematic top view of the aluminum plate assembly structure of the present invention;

[0034] Figure 7 It is a schematic axial view of the battery horizontal positioning mechanism structure of the present invention;

[0035] Figure 8 It is a schematic axial view of the battery height positioning mechanism structure of the present invention;

[0036] Fig. 9 It is a schematic axial view of the probe mechanism structure of the present invention;

[0037] Fig.10 It is a schematic axial view of the structure of the probe spacing adjustment mechanism of the present invention;

[0038] Fig.11 It is a schematic axial view of the transverse shift mechanism structure of the present invention. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with the accompanying drawings.

[0040] Refer to the attached figure:

[0041] Embodiment 1 The high temperature pressurized formation fixture for rectangular batteries of the present invention comprises:

[0042] The support unit includes a frame 4 and a transverse movement mechanism 3. The transverse movement mechanism is installed on the top of the frame 4. The transverse movement mechanism 3 includes a transverse movement fixed part and a transverse movement movable part. The transverse movement fixed part is fixedly connected to the top of the frame 3. The transverse movement movable part is installed on the fixed part. The driving end of the transverse movement movable part is connected to the heating and oiling unit, which is used to adjust the position of the heating and pressurizing mechanism 1 on the frame;

[0043] The heating and pressurizing mechanism 1 is arranged on the movable part of the transverse movement mechanism 3, and includes a battery clamping mechanism, a pressurizing control mechanism and a heating mechanism 123, wherein the supporting part of the battery clamping mechanism is installed on the transverse movement movable part and moves synchronously with the transverse movement movable part, the supporting part of the battery clamping part is installed with the clamping part, and the clamping part is axially provided with a clamping grid for clamping the battery; the pressurizing control mechanism is arranged at the end of the battery clamping part, and the pressurizing end of the pressurizing control mechanism is connected to the clamping part of the battery clamping mechanism, and is used to adjust the size of the clamping grid to clamp or loosen the battery placed in the clamping grid; the heating mechanism is arranged on the clamping part, and is used to heat the battery placed in the clamping grid;

[0044] And a formation test unit, including a probe mechanism 2 and a power box 5, the probe mechanism includes a probe lifting part, a probe spacing adjustment mechanism 21 and a probe assembly, the probe lifting part is installed on the transverse movable part, and is used to adjust the longitudinal height of the probe spacing adjustment mechanism; the probe spacing adjustment mechanism is installed on the lifting movable part of the probe lifting part and is suspended above the heating and pressurizing mechanism, and is used to adjust the spacing between probes to adapt to different types of batteries; the probe assembly is arranged on the side of the probe spacing adjustment mechanism facing the heating and pressurizing mechanism, and is used to contact and connect with the battery clamped in the clamping block; the power box 5 is installed at the lower part of the frame, and the power transmission end of the power box 5 is electrically connected to the power supply end of the probe, and is used to perform formation testing on the battery.

[0045] The transverse fixed part of the transverse mechanism 3 includes a fixed base plate 32 and a guide rail 31, and the transverse movable part includes a rodless cylinder 33, a slider 35 and a transverse limit block 34. The fixed base plate 32 is mounted on the top of the frame 3, and the guide rail 31 is horizontally laid on the surface of the fixed base plate 32; the rodless cylinder 33 is installed on the fixed base plate 32, and the telescopic end of the rodless cylinder 33 is kept axially arranged along the guide rail 31, and the telescopic end of the rodless cylinder 33 is connected to the heating and pressurizing mechanism 1; the slider 35 is slidably installed on the guide rail 31, and the slider 35 is fixedly connected to the heating and pressurizing mechanism 1, so that the heating and pressurizing mechanism 1 moves back and forth in a straight line along the axial direction of the guide rail 31 under the drive of the rodless cylinder 33; the transverse limit block 34 is arranged on the fixed base plate 32, which is used to limit the movement stroke of the rodless cylinder 33.

[0046] The battery clamping part includes a frame and an aluminum plate assembly 12, the frame includes a mounting substrate 17, a head support substrate 13, a middle support substrate 14, a tail support substrate 15 and an aluminum plate assembly guide shaft 16; the pressure control mechanism includes a pressure mechanism 10 and a pressure detection mechanism 11; the head support substrate 13, the middle support substrate 14, and the tail support substrate 15 are arranged vertically on the mounting substrate 17 in sequence; the two ends of the aluminum plate assembly guide shaft 16 are respectively arranged on the middle support substrate 14 and the tail support substrate 15; the aluminum plate assembly 12 is sleeved on the aluminum plate assembly guide shaft 16, and the aluminum plate assemblies 12 are kept parallel to each other and linked to each other, and the A clamping block is left between adjacent aluminum plate assemblies 12; a heating mechanism 123 is provided on each aluminum plate assembly 12 for heating the battery in the clamping block; the pressurizing mechanism 10 is provided on the head support substrate 13, and the pressurizing end of the pressurizing mechanism 10 passes through the middle support substrate 14 and is connected to the outermost aluminum plate assembly 12 of the head, and is used to drive the aluminum plate assembly 12 to reciprocate along the axial straight line of the aluminum plate assembly guide shaft 16 to adjust the size of the clamping block; the pressure detection mechanism 11 is provided on the tail support substrate 15, and the detection end of the pressure detection mechanism 11 is in contact with and connected to the outermost aluminum plate assembly of the tail, and is used to detect the pressure exerted on the aluminum plate assembly.

[0047] The probe lifting part of the probe mechanism 2 includes a lifting cylinder 24, a moving base plate 22, a column 26 and a top base plate 23, wherein the top base plate 23 is horizontally mounted above the fixed base plate 32 through the column 26; the lifting cylinder 24 is arranged on the moving base plate 22, and the output end of the lifting cylinder 24 is fixedly connected to the top base plate 23; the moving base plate 22 is arranged on the column 26 between the top base plate 23 and the fixed base plate 32, and is slidably connected to the column 26, so that the moving base plate 22 moves up and down along the column 26 driven by the lifting cylinder 24; a base plate limit block 25 is sleeved on the lower part of the column to limit the position of the moving base plate 22;

[0048] The probe spacing adjustment mechanism 21 is installed on the moving base plate 22, including a spacing mounting frame and a spacing adjustment part. The spacing mounting frame includes a front base plate 223, a rear base plate 224, a side base plate 220, a supporting connecting shaft 221, a horizontal guide shaft mounting block 226A and a probe positioning shaft 226B; the spacing adjustment part includes a horizontal guide shaft 225, a pair of vertical adjustment shafts 224, a spacing holding block 222 and a gear rack mechanism 229; the front base plate 223 and the rear base plate 224 are respectively arranged at the two ends of the side base plate 230, and form a rectangular shape with the side base plate 220. The front substrate 223 and the rear substrate 224 are provided with two coaxially arranged long waist holes 200, and the long waist holes 200 are located at the same horizontal height; the two ends of the support connecting shaft 221 are respectively arranged on the front substrate 223 and the rear substrate 224, and a plurality of horizontal guide shaft mounting blocks 226A are sleeved on the support connecting shaft 221 for fixing the horizontal guide shaft 225; the gear rack mechanism 229 includes a rack 2292 and a gear 2291 meshing with the rack, the rack 2292 is installed on the front and rear substrates, and is arranged axially along the long waist hole 200; two vertical The two ends of the vertical adjustment shaft 224 pass through the long waist holes 200 of the front and rear substrates respectively and are fixedly connected to the gear 2291 on the same side; the two ends of the horizontal guide shaft 225 are respectively fixedly mounted on the corresponding horizontal guide shaft mounting block 226A, so that the horizontal guide shaft 225 can move axially along the supporting connecting shaft 221; the horizontal guide shaft 225 and the vertical adjustment shaft 224 are both parallel to the fixed substrate 32, and the horizontal guide shaft 225 is perpendicular to the vertical adjustment shaft 224; the probe positioning shaft 226B is arranged at the bottom of the horizontal guide shaft mounting block 226A, and the probe The needle positioning shaft 226A cooperates with the probe positioning shaft sleeve 126 on the aluminum plate assembly 12, so that the probe and the battery pole ear on the aluminum plate can be positioned; the probe assembly 227 is arranged on the vertical adjustment shaft 224 and vertically arranged on the horizontal guide shaft, and the probe assembly is screwed with the vertical adjustment shaft and slidably connected with the horizontal guide shaft 225, so that the probe assembly 227 can move in two directions along the horizontal guide shaft 225 and the vertical adjustment shaft 224; the spacing holding block is arranged on the probe assembly, so that the spacing between the probe assembly 227 and the aluminum plate assembly 12 is kept consistent;

[0049] The probe assembly 227 includes a mounting support and a probe, wherein the mounting support is fixed on the vertical adjustment shaft 224 and vertically arranged on the horizontal guide shaft 225, and the mounting support is threadedly connected to the vertical adjustment shaft 224 and slidably connected to the horizontal guide shaft 225, so that the mounting support can move in two directions along the horizontal guide shaft and the vertical adjustment shaft; the probe is arranged at the bottom of the mounting support, facing the clamping block of the heating and pressurizing mechanism, and corresponding to one of them, and is used to contact and connect with the battery in the clamping block.

[0050] The pressurizing mechanism 10 includes a pressurizing cylinder 101, a floating joint 102, a pressurizing support shaft 103, a pressurizing guide shaft 104, a pressurizing push plate 105 and a buffer mechanism. The pressurizing cylinder 101 is installed on the first side of the head support base plate 13; one side of the floating joint 102 is arranged on the output shaft of the pressurizing cylinder 101, and the other side is arranged on the pressurizing push plate 105; one end of the pressurizing support shaft 103 is installed on the head support base plate 13, and the other end is installed on the middle support base plate 14, and the pressurizing support shafts 103 are kept parallel to each other; the pressurizing guide shaft 104 is arranged on the second side of the pressurizing push plate 105, and the other end of the pressurizing guide shaft 104 is connected to the aluminum plate assembly 12 through the buffer mechanism.

[0051] The buffer mechanism includes a first spring push plate 106, a pressure spring 107 and a second spring push plate 108. The first spring push plate 106 and the second spring push plate 108 are slidably arranged on the aluminum plate assembly guide shaft 16 in parallel with each other; the pressure spring 107 is arranged between the first spring push plate 106 and the second spring push plate 108; the second spring push plate 108 is connected to the outermost aluminum plate assembly 12 of the head.

[0052] The aluminum plate assembly 12 includes an aluminum plate support block 122, a battery horizontal positioning mechanism 125, a battery height positioning mechanism 124, an aluminum plate 121 and a probe positioning sleeve 126. The aluminum plate 121 is vertically sleeved on the aluminum plate assembly guide shaft 16 through the aluminum plate support block 122 at the end, and the aluminum plates 121 are kept parallel to each other, and a clamping block for accommodating the battery is left between adjacent aluminum plates 121. The upper edge of the aluminum plate 121 is embedded with a probe positioning sleeve 126 that can cooperate with the probe positioning shaft; the battery horizontal positioning mechanism 125, the battery height positioning mechanism 124, and the heating mechanism 123 are all arranged on the aluminum plate 12, wherein:

[0053] The battery horizontal positioning mechanism 125 includes a positioning plate guide shaft 1253, a horizontal positioning plate 1251, a guide shaft support 1252, a positioning adjustment rod 1259, a belt transmission assembly and two sets of screw transmission assemblies, wherein the screw transmission assembly includes a screw guide shaft 1254, a transmission screw pair 1255 and a screw support 1256;

[0054] The guide shaft support 1252 is arranged at the bottom of the aluminum plate 121; the positioning plate guide shaft 1253 is arranged on the guide shaft support 1252; the horizontal positioning plate 1251 is slidably arranged on the positioning plate guide shaft 1253, so that the horizontal positioning plate 1251 can move horizontally along the axial direction of the positioning plate guide shaft 1253; the positioning adjustment rod 1259 is connected between the moving parts of the two sets of screw drive assemblies and is connected to each other, and the positioning adjustment rod 1259 is supported at the bottom of the horizontal positioning plate 1251; the power input ends of the two sets of screw drive assemblies are connected through the belt of the belt drive assembly to realize the synchronous rotation of the two sets of screw drive assemblies to drive the moving parts to move;

[0055] The battery height positioning mechanism 124 includes a height positioning guide shaft 1241, a height positioning plate 1243, a spring 1242 and a height driving device, wherein the height positioning guide shaft 1241 is arranged at the bottom of the aluminum plate 12; the spring 1242 is sleeved on the height positioning guide shaft 1241; the height positioning plate 1243 is arranged on the height positioning guide shaft 1241 and moves up and down along the height positioning guide shaft 1241; the height driving device is installed on the mounting base plate 17, and the lifting end of the height driving device is in contact with and connected to the pushing part of the height positioning plate 1243, so that the height positioning plate 1243 moves up and down along the height positioning guide shaft driven by the lifting end of the height driving device to push out the battery in the clamping block.

[0056] The belt drive assembly includes a synchronous wheel 1257 and a synchronous belt 1258; the screw drive assembly includes a screw support 1256, a screw guide shaft 1254 and a transmission screw pair 1255; the screw support 1256 is respectively arranged on the middle support base plate 14 and the rear support base plate 15, and is used to support the screw of the transmission screw pair; the screw guide shaft 1254 is arranged on the screw support 1256, and keeps the screw guide shaft parallel to the screw; the synchronous wheel 1258 is fixed on the screw 1255A of the two transmission screw pairs 1255; the two ends of the positioning adjustment rod 1259 are respectively connected to the moving part 1255B of the transmission screw pair 1255 on the same side, and are in contact with the battery horizontal positioning plate 1251; the synchronous belt 1258 is sleeved on the synchronous wheels 1257 of the two sets of screw drive assemblies, and is used to realize the synchronous transmission of the synchronous wheels of the two sets of screw drive assemblies.

[0057] The height driving device includes a lifting cylinder 1245, a cylinder top plate 1244, a cylinder top plate guide shaft 1246 and a linear bearing 1247. The lifting cylinder 1245 is arranged on the mounting base plate 17; the cylinder top plate 1244 is arranged on the output end of the lifting cylinder 1245 and contacts with the height positioning plate 1243, and is used to push the height positioning plate 1243 up and down; the linear bearing 1247 is embedded in the mounting base plate 17; the lower end of the cylinder top plate guide shaft 1246 is inserted into the linear bearing 1247, and the two are slidably connected, and the upper end is fixedly connected to the cylinder top plate 1244, so as to realize the sliding connection between the cylinder top plate 1244 and the mounting base plate 17.

[0058] The pressurization detection mechanism 11 includes a pressure sensor 113, a pressure detection plate 111, a height adjustment block 112 and a reinforcing rib 114. The pressure sensor 113 is arranged on the height adjustment block 112, and the height adjustment block 112 is arranged on the tail support substrate 15. The pressure detection plate 111 is arranged on the pressure sensor 113, and the other side contacts the aluminum plate assembly 12. The reinforcing rib 114 is vertically arranged on the tail support substrate 15 and the mounting substrate 17.

[0059] Each aluminum plate assembly is equipped with a heating mechanism 123, which includes a heating plate 1231 and a temperature sensor 1232, wherein the heating plate 1231 is installed on the aluminum plate 121, and the connecting end of the heating plate 1231 is electrically connected to an external device for heating the aluminum plate 121; the temperature sensor 1232 is installed on the heating plate 1231 for detecting the temperature of the aluminum plate 121.

[0060] Example 2 Figure 1 As shown, the high-temperature pressurized formation fixture for angular batteries includes a heating and pressurizing mechanism 1, a probe mechanism 2, a transverse movement mechanism 3, a frame 4, and a power supply box 5; the transverse movement mechanism 3 is arranged on the frame 4, and the heating and pressurizing mechanism 1 is arranged on the transverse movement mechanism 3; the probe mechanism 2 is arranged on a fixed substrate 32, and the power supply box 5 is arranged at the bottom of the frame 4.

[0061] Reference Figure 2The heating and pressurizing mechanism 1 includes a battery clamping mechanism, a pressurizing control mechanism and a heating mechanism 123, wherein: the battery clamping mechanism includes a frame and a plurality of aluminum plate assemblies 12 parallel to each other, the frame includes a mounting substrate 17, a head support substrate 13, a middle support substrate 14, a tail support substrate 15 and four aluminum plate assembly guide shafts 16; the pressurizing control mechanism includes a pressurizing mechanism 10 and a pressure detection mechanism 11; the head support substrate 13, the middle support substrate 14 and the tail support substrate 15 are vertically arranged on the mounting substrate 17. The two ends of the aluminum plate assembly guide shaft 16 are respectively arranged on the middle support substrate 14 and the tail support substrate 15. The aluminum plate assemblies 12 are parallel to each other and are arranged on the aluminum plate assembly guide shaft 16. The pressurizing mechanism 10 is arranged on the head support substrate 13. The pressure detection mechanism 11 is arranged on the tail support substrate 15. Under the drive of the pressurizing mechanism 10, the aluminum plate assemblies 12 are pressed against each other, and the driving force is transmitted to the pressure detection mechanism 11.

[0062] Reference Figure 3 The pressurizing mechanism 10 includes a pressurizing cylinder 101, a floating joint 102, four support shafts 104, four pressurizing guide shafts 105, a pressurizing push plate 103 and a buffer mechanism, and the buffer mechanism includes a first spring push plate 106, a plurality of pressurizing springs 107 and a second spring push plate 108. The pressurizing cylinder 101 is installed on the left side of the head support base plate 13. One side of the floating joint 102 is set on the output shaft of the pressurizing cylinder 101, and the other side is set on the pressurizing push plate 103. One end of the four support shafts 104 is installed on the head support base plate 13, and the other end is installed on the middle support base plate 14, and the four support shafts 104 are parallel to each other. The pressurizing guide shaft 105 is set on the right side of the pressurizing push plate 103, and the other end of the pressurizing guide shaft 105 is fixed on the first spring push plate 106. The first spring push plate 106 and the second spring push plate 108 are set on the guide shaft 16 of the aluminum plate assembly in parallel with each other. The pressure spring 107 is disposed between the first spring push plate 106 and the second spring push plate 108. The second spring push plate 108 is connected and fixed to the aluminum plate assembly 12.

[0063] Reference Figure 4 The pressure detection mechanism 11 includes a pressure sensor 113, a pressure detection plate 111, a height adjustment block 112 and a reinforcing rib 114; the pressure sensor 113 is arranged on the height adjustment block 112, the height adjustment block 112 is arranged on the tail reference plate 15, the pressure detection plate 111 is arranged on the pressure sensor 113, and the other side contacts the aluminum plate assembly 12, and the reinforcing rib 114 is vertically arranged on the tail reference plate 15 and the mounting substrate 17.

[0064] Reference Figure 5-6 The aluminum plate assembly 12 includes an aluminum plate support block 122, a battery horizontal positioning mechanism 125, a battery height positioning mechanism 124, an aluminum plate 121, and a probe positioning sleeve 126. The aluminum plate support block 122 is arranged on the aluminum plate assembly guide shaft 16. The battery horizontal positioning mechanism 125, the probe positioning sleeve 126, the battery height positioning mechanism 124, and the heating mechanism 123 are all arranged on the aluminum plate 121.

[0065] Reference Figure 5-7 The battery horizontal positioning mechanism 125 includes a plurality of positioning plate guide shafts 1253, a plurality of horizontal positioning plates 1251, a guide shaft support 1252, two positioning adjustment rods 1259, two screw guide shafts 1254, two transmission screw pairs 1255, two synchronous wheels 1257, a synchronous belt 1258, and four screw supports 1256. The guide shaft support 1252 is arranged at the bottom of the aluminum plate 121. The positioning plate guide shaft 1253 is arranged on the guide shaft support 1252. The horizontal positioning plate 1251 is arranged on the positioning plate guide shaft 1253, and the horizontal positioning plate 1251 can move horizontally on the positioning plate guide shaft 1253. The screw guide shaft 1254 is arranged on the screw support 1256. The screw supports 1256 are respectively arranged on the middle support base plate 13 and the tail support base plate 15. The synchronous wheels 1257 are respectively arranged on the two transmission screw pairs 1255. The positioning adjustment rod 1259 is arranged on the transmission screw pair 1255 and contacts the horizontal positioning plate 1251. The synchronous belt 1258 is used for transmission of two synchronous wheels 1257. By rotating the synchronous wheels 1257, the spacing of the horizontal positioning plates 1251 is adjusted to achieve the function of horizontal positioning of the battery.

[0066] Reference Figure 5-8 The battery height positioning mechanism comprises a plurality of height positioning plate guide shafts 1241, a plurality of height positioning plates 1243, a plurality of springs 1242, a lifting cylinder 1245, a cylinder top plate 1244, and four cylinder top plate guide shafts 1246; the height positioning plate guide shaft 1241 is arranged at the bottom of the aluminum plate 121; the height positioning plate 1243 is arranged on the height positioning plate guide shaft 1241, and can move up and down along the height positioning plate guide shaft 1241; the lifting cylinder 1245 is arranged on the mounting substrate 17; the cylinder top plate 1244 is arranged on the output end of the lifting cylinder 1245 and contacts with the height positioning plate 1243; by controlling the lifting cylinder 1245, when the battery is completed, the battery can be pushed out of the surface of the aluminum plate assembly 12, so as to facilitate manual placement of the battery; when the battery needs to undergo a formation process, the lifting cylinder 1245 retracts, and the battery drops below the surface of the aluminum plate assembly 12.

[0067] The lifting cylinder 1245 can be any type of cylinder or electric cylinder.

[0068] Reference Fig. 9 The probe mechanism 2 includes a probe spacing adjustment mechanism 21, two lifting cylinders 24, a moving base plate 22, four columns 26, a top base plate 23, and four stop blocks 25. The probe spacing adjustment mechanism 21 is arranged on the moving base plate 22. The lifting cylinder 24 is arranged on the moving base plate 22, and the output end of the lifting cylinder 24 is arranged on the top base plate 23. The moving base plate 22 is arranged on the column 26 and can move up and down along the column 26. The stop block 25 can adjust the installation position on the column 26 at will according to the debugging situation; the column is arranged on the fixed base plate 32, and the other end is fixed on the top base plate.

[0069] Reference Fig.10 The probe spacing adjustment mechanism 21 includes a front substrate 223, a rear substrate 228, a plurality of spacing holding blocks 222, a plurality of horizontal guide shafts 225, two vertical adjustment shafts 224, two support shafts 221, a plurality of horizontal guide shaft mounting blocks 226A, two sets of gear rack mechanisms 229, a plurality of probe assemblies 227, and a plurality of probe positioning shafts 226B; the gear rack mechanisms 229 are respectively arranged on the front substrate 223 and the rear substrate 228, wherein the gear 2291 of the gear rack mechanism 229 is installed on the vertical adjustment shaft 224, and the rack 2292 is installed on the front substrate 223 and the rear substrate 228, and the gear 2291 is meshed with the rack 2292 on the same side and keeps the rack arranged axially along the long waist hole; the two ends of the support shaft 221 are respectively arranged on the front substrate 223 and the rear substrate 228; the horizontal guide shaft The mounting block 226A is arranged on the support shaft 221; the vertical adjustment shaft 224 is arranged on the gear rack mechanism 229; the horizontal guide shaft 225 is vertically arranged on the horizontal guide shaft mounting block 226A; the probe positioning shaft 226B is arranged on the horizontal guide shaft mounting block 226A, and the probe positioning shaft 226B cooperates with the probe positioning shaft sleeve 126 on the aluminum plate assembly 12, so that the probe and the battery pole ear on the aluminum plate can be positioned; the probe assembly 227 is horizontally arranged on the vertical adjustment shaft 224 and vertically arranged on the horizontal guide shaft 225, so that the probe assembly 227 can move in two directions along the horizontal guide shaft 225 and the vertical adjustment shaft 224; the spacing maintaining block 222 is arranged on the probe assembly 227, so that the spacing between the probe assembly 227 and the aluminum plate assembly 12 remains consistent.

[0070] The lifting cylinder 24 is provided with three magnetic switches, which are controlled by a three-position five-way center-sealed solenoid valve, so that the cylinder can stay in the middle position.

[0071] The lifting cylinder 24 can be any one of a pneumatic cylinder or an electric cylinder.

[0072] The probe assembly can move in two directions along the horizontal guide axis and the vertical adjustment axis.

[0073] The probe positioning shaft cooperates with the probe positioning shaft sleeve on the aluminum plate assembly, so that the probe and the battery pole ear on the aluminum plate can achieve the purpose of positioning.

[0074] The probe assembly comprises a mounting support and a probe; the probe is arranged on the mounting support.

[0075] Reference Fig.11 The traverse mechanism 3 comprises a rodless cylinder 33, two guide rails 31, four limit blocks 34, and a fixed base plate 32. The rodless cylinder 33, the guide rails 31, and the limit blocks 34 are respectively arranged on the fixed base plate 32. The two guide rails 31 and the rodless cylinder 33 are parallel to each other.

[0076] 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 high temperature pressurized formation fixture for rectangular batteries, characterized in that: include: The support unit includes a frame and a transverse movement mechanism. The transverse movement mechanism is installed on the top of the frame. The transverse movement mechanism includes a transverse movement fixed part and a transverse movement movable part. The transverse movement fixed part is fixedly connected to the top of the frame. The transverse movement movable part is installed on the fixed part. The driving end of the transverse movement movable part is connected to the heating and oiling unit for adjusting the position of the heating and pressurizing mechanism on the frame. The heating and pressurizing mechanism is arranged on the movable part of the transverse movement mechanism, and includes a battery clamping mechanism, a pressurizing control mechanism and a heating mechanism, wherein the supporting part of the battery clamping mechanism is installed on the transverse movement movable part and moves synchronously with the transverse movement movable part, the supporting part of the battery clamping part is installed with the clamping part, and the clamping part is axially provided with a clamping grid for clamping the battery; the pressurizing control mechanism is arranged at the end of the battery clamping part, and the pressurizing end of the pressurizing control mechanism is connected to the clamping part of the battery clamping mechanism, and is used to adjust the size of the clamping grid to clamp or loosen the battery placed in the clamping grid; the heating mechanism is arranged on the clamping part, and is used to heat the battery placed in the clamping grid; and a formation test unit, including a probe mechanism and a power supply box, wherein the probe mechanism includes a probe lifting part, a probe spacing adjustment mechanism and a probe assembly, wherein the probe lifting part is installed on the transverse movable part and is used to adjust the longitudinal height of the probe spacing adjustment mechanism; The probe spacing adjustment mechanism is installed on the lifting and moving part of the probe lifting part and is suspended above the heating and pressurizing mechanism, and is used to adjust the spacing between the probes to adapt to different types of batteries; the probe assembly is arranged on the side of the probe spacing adjustment mechanism facing the heating and pressurizing mechanism, and is used to contact and connect with the battery clamped in the clamping block; the power box is installed at the lower part of the frame, and the power transmission end of the power box is electrically connected to the power supply end of the probe, which is used to perform formation testing on the battery.

2. The high temperature pressurized formation fixture for rectangular batteries according to claim 1, characterized in that: The transverse fixed part of the transverse mechanism includes a fixed base plate and a guide rail, and the transverse movable part includes a rodless cylinder, a slider and a limit block. The fixed base plate is mounted on the top of the frame, and the guide rail is horizontally laid on the surface of the fixed base plate; the rodless cylinder is installed on the fixed base plate, and the telescopic end of the rodless cylinder is kept arranged along the axial direction of the guide rail, and the telescopic end of the rodless cylinder is connected to the heating and pressurizing mechanism; the slider is slidably installed on the guide rail, and the slider is fixedly connected to the heating and pressurizing mechanism, so that the heating and pressurizing mechanism can move back and forth in a straight line along the axial direction of the guide rail under the drive of the rodless cylinder; the limit block is arranged on the fixed base plate, which is used to limit the movement stroke of the rodless cylinder.

3. The high temperature pressurized formation fixture for rectangular batteries according to claim 1, characterized in that: The battery clamping part includes a frame and an aluminum plate assembly, the frame includes a mounting base plate, a head support base plate, a middle support base plate, a tail support base plate and an aluminum plate assembly guide shaft; the pressure control mechanism includes a pressure mechanism and a pressure detection mechanism; the head support base plate, the middle support base plate and the tail support base plate are arranged vertically on the mounting base plate in sequence; the two ends of the aluminum plate assembly guide shaft are respectively arranged on the middle support base plate and the tail support base plate; the aluminum plate assembly is sleeved on the aluminum plate assembly guide shaft, and the aluminum plate assemblies are kept parallel to each other and linked to each other, and adjacent aluminum plate assemblies are arranged A clamping block is left between the parts; a heating mechanism is arranged on each aluminum plate assembly for heating the battery in the clamping block; the pressurizing mechanism is arranged on the head support base plate, and the pressurizing end of the pressurizing mechanism passes through the middle support base plate and is connected with the outermost aluminum plate assembly of the head, and is used to drive the aluminum plate assembly to move back and forth along the axial straight line of the aluminum plate assembly guide shaft to adjust the size of the clamping block; the pressure detection mechanism is arranged on the tail support base plate, and the detection end of the pressure detection mechanism is in contact with and connected to the outermost aluminum plate assembly of the tail, and is used to detect the pressure exerted on the aluminum plate assembly.

4. The high temperature pressurized formation fixture for rectangular batteries according to claim 3, characterized in that: The probe lifting part of the probe mechanism includes a lifting cylinder, a moving base plate, a column and a top base plate, wherein the top base plate is horizontally mounted above the fixed base plate through the column; the lifting cylinder is arranged on the moving base plate, and the cylinder output end is fixedly connected to the top base plate; the moving base plate is arranged on the column between the top base plate and the fixed base plate, and is slidably connected to the column, so that the moving base plate moves up and down along the column driven by the lifting cylinder; The probe spacing adjustment mechanism is installed on the moving substrate, including a spacing mounting frame and a spacing adjustment part, the spacing mounting frame includes a front substrate, a rear substrate, a side substrate, a support connecting shaft, a horizontal guide shaft mounting block and a probe positioning shaft; the spacing adjustment part includes a horizontal guide shaft, a pair of vertical adjustment shafts, a spacing holding block and a gear rack mechanism; the front substrate and the rear substrate are respectively arranged at the two ends of the side substrate, and form a rectangular frame structure with the side substrate, the front substrate and the rear substrate are provided with at least one long waist hole, and the long waist holes are located at the same horizontal height; the two ends of the support connecting shaft are respectively arranged on the front substrate and the rear substrate, and a number of horizontal guide shaft mounting blocks are sleeved on the support connecting shaft for fixing the horizontal guide shaft; the gear rack mechanism includes a rack and a gear meshing with the rack, the rack is installed on the front and rear substrates, and along the long waist hole axis The two vertical adjustment shafts are parallel, and the two ends of the vertical adjustment shafts are respectively passed through the long waist holes of the front and rear substrates and fixedly connected to the gears on the same side; the two ends of the horizontal guide shaft are respectively fixedly mounted on the corresponding horizontal guide shaft mounting blocks, so that the horizontal guide shaft can move axially along the supporting connection shaft; the probe positioning shaft is arranged at the bottom of the horizontal guide shaft mounting block, and the probe positioning shaft cooperates with the probe positioning shaft sleeve on the aluminum plate assembly, so that the probe and the battery pole ear on the aluminum plate can be positioned; the probe assembly is arranged on the vertical adjustment shaft and vertically arranged on the horizontal guide shaft, and the probe assembly is screwed with the vertical adjustment shaft and slidably connected with the horizontal guide shaft, so that the probe assembly can move in two directions along the horizontal guide shaft and the vertical adjustment shaft; the spacing maintaining block is arranged on the probe assembly, so that the spacing between the probe assembly and the aluminum plate assembly remains consistent; The probe assembly includes a mounting support and a probe, wherein the mounting support is fixed on a vertical adjustment shaft and vertically arranged on a horizontal guide shaft, and the mounting support is threadedly connected to the vertical adjustment shaft and slidably connected to the horizontal guide shaft, so that the mounting support can move in two directions along the horizontal guide shaft and the vertical adjustment shaft; the probe is arranged at the bottom of the mounting support and faces the clamping block of the heating and pressurizing mechanism and corresponds one to one with the battery in the clamping block.

5. The high temperature pressurized formation fixture for rectangular batteries according to claim 3, characterized in that: The pressurizing mechanism includes a pressurizing cylinder, a floating joint, a pressurizing support shaft, a pressurizing guide shaft, a pressurizing push plate and a buffer mechanism. The pressurizing cylinder is installed on the first side of the head support base plate; one side of the floating joint is arranged on the pressurizing cylinder output shaft, and the other side is arranged on the pressurizing push plate; one end of the pressurizing support shaft is installed on the head support base plate, and the other end is installed on the middle support base plate, and the pressurizing support shafts are kept parallel to each other; the pressurizing guide shaft is arranged on the second side of the pressurizing push plate, and the other end of the pressurizing guide shaft is connected to the aluminum plate assembly through the buffer mechanism.

6. The high temperature pressurized formation fixture for rectangular batteries according to claim 5, characterized in that: The buffer mechanism includes a first spring push plate, a pressure spring and a second spring push plate. The first spring push plate and the second spring push plate are slidably arranged on the guide shaft of the aluminum plate assembly in parallel with each other; the pressure spring is arranged between the first spring push plate and the second spring push plate; the second spring push plate is connected to the outermost aluminum plate assembly of the head.

7. The high temperature pressurized formation fixture for rectangular batteries according to claim 6, characterized in that: The aluminum plate assembly includes an aluminum plate support block, a battery horizontal positioning mechanism, a battery height positioning mechanism, an aluminum plate and a probe positioning sleeve. The aluminum plate is vertically sleeved on the guide shaft of the aluminum plate assembly through the aluminum plate support block at the end, and the aluminum plates are kept parallel to each other, and a clamping block for accommodating the battery is left between adjacent aluminum plates. The upper edge of the aluminum plate is embedded with a probe positioning sleeve that can cooperate with the probe positioning shaft; the battery horizontal positioning mechanism, the battery height positioning mechanism, and the heating mechanism are all arranged on the aluminum plate, wherein: The battery horizontal positioning mechanism includes a positioning plate guide shaft, a horizontal positioning plate, a guide shaft support, a positioning adjustment rod, a belt transmission assembly and two sets of screw transmission assemblies, and the screw transmission assembly includes a screw guide shaft, a transmission screw pair and a screw support; The guide shaft support is arranged at the bottom of the aluminum plate; the positioning plate guide shaft is arranged on the guide shaft support; the horizontal positioning plate is slidably arranged on the positioning plate guide shaft, so that the horizontal positioning plate can move horizontally along the axial direction of the positioning plate guide shaft; the moving parts of the two sets of screw drive assemblies are connected to each other by positioning adjustment rods, and the positioning adjustment rods are supported at the bottom of the horizontal positioning plate; the power input ends of the two sets of screw drive assemblies are connected by belts of the belt drive assembly, so as to realize the synchronous rotation of the two sets of screw drive assemblies to drive the moving parts to move; The battery height positioning mechanism includes a height positioning guide shaft, a height positioning plate, a spring and a height driving device, wherein the height positioning guide shaft is arranged at the bottom of the aluminum plate; the spring is sleeved on the height positioning guide shaft; the height positioning plate is arranged on the height positioning guide shaft and moves up and down along the height positioning guide shaft; the height driving device is installed on the mounting base plate, and the lifting end of the height driving device is in contact and connected with the pushing part of the height positioning plate, so that the height positioning plate moves up and down along the height positioning guide shaft driven by the lifting end of the height driving device to push out the battery in the clamping block.

8. The high temperature pressurized formation fixture for rectangular batteries according to claim 7, characterized in that: The belt drive assembly includes a synchronous wheel and a synchronous belt; the screw drive assembly includes a screw support, a screw guide shaft and a transmission screw pair; the screw support is respectively arranged on the middle support base plate and the tail support base plate, and is used to support the screw of the transmission screw pair; the screw guide shaft is arranged on the screw support, and the screw guide shaft is kept parallel to the screw; the synchronous wheel is fixed on the screws of the two transmission screw pairs; the two ends of the positioning adjustment rod are respectively connected to the moving parts of the transmission screw pair on the same side, and are in contact with the battery horizontal positioning plate; the synchronous belt is set on the synchronous wheels of the two sets of screw drive assemblies, and is used to realize the synchronous transmission of the synchronous wheels of the two sets of screw drive assemblies.

9. The high temperature pressurized formation fixture for rectangular batteries according to claim 7, characterized in that: The height driving device includes a lifting cylinder, a cylinder top plate, a cylinder top plate guide shaft and a linear bearing. The lifting cylinder is arranged on a mounting base plate; the cylinder top plate is arranged on an output end of the cylinder and contacts with a height positioning plate, so as to push the height positioning plate up and down; the cylinder top plate guide shaft is embedded in the mounting base plate; the lower end of the cylinder top plate guide shaft is inserted into a linear bearing, the two are slidably connected, and the upper end is fixedly connected to the cylinder top plate, so as to realize a sliding connection between the cylinder top plate and the mounting base plate.

10. The high temperature pressurized formation fixture for rectangular batteries according to claim 3, characterized in that: The pressure detection mechanism includes a pressure sensor, a pressure detection plate, a height adjustment block, and reinforcing ribs. The pressure sensor is arranged on the height adjustment block, the height adjustment block is arranged on the tail support substrate, the pressure detection plate is arranged on the pressure sensor, and the other side is in contact with the aluminum plate assembly, and the reinforcing ribs are vertically arranged on the tail support substrate and the mounting substrate.

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