Steel shell battery formation and capacity grading clamp

Abstract

The invention relates to the field of battery production, in particular to a steel shell battery formation and capacity grading clamp. The steel shell battery formation and capacity grading clamp comprises a bottom frame assembly, a tray assembly, a steel shell battery positioning mechanism and a top frame assembly, the top frame assembly is provided with a top frame bottom plate, a lifting cylinder assembly and a probe fixing assembly; the lifting cylinder assembly drives the tray assembly and the steel shell battery positioning mechanism to do lifting motion along the guide shaft; the lifting cylinder assembly and the probe fixing assembly are mounted on the top frame bottom plate; the probe fixing assembly is provided with a plurality of probes; after the lifting air cylinder assembly drives the tray assembly to rise, the steel shell batteries on the tray assembly enter meshes of the grid structure and are subjected to secondary positioning through the steel shell battery positioning mechanism, and the lifting air cylinder assembly continues to move so that the steel shell batteries can make contact with the probes. The device has the beneficial effects that batteries of different specifications are roughly positioned in a low-cost manner, and then secondary accurate positioning is performed by using the steel shell battery positioning mechanism, so that the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery production, and in particular to a steel shell battery formation and capacity sorting clamp. BACKGROUND

[0002] In the formation and capacity sorting process of the steel shell battery, the core moving parts are the charge-discharge probe and the pressurizing clamp. With the increasing demand for diversification of the steel shell battery in the market, the size of the steel shell battery varies greatly, and the pole of the small steel shell battery is even only 1mm. In order to reduce costs and increase efficiency, many manufacturers often need to simultaneously perform formation and capacity sorting on hundreds of steel shell batteries with one device. Therefore, the precision requirements of the probe moving mechanism of the device and the positioning precision of the batteries in the tray increase by a geometric multiple.

[0003] At present, there are two schemes for positioning the steel shell battery in the formation and capacity sorting process of the steel shell battery. One mainly relies on the injection molding manufacturing precision of the tray itself; high precision determines the high manufacturing cost of the tray, and since the specifications of the steel shell battery are diverse, the manufacturers spend more on the tray. Moreover, in the case of steel shell battery change, the difference in size between the trays leads to misalignment of the probe and the pole, which has a huge impact on production. In severe cases, there may be battery short circuit burning or huge safety hazards. The other is to use the extrusion of the guide plates moving towards each other to position the battery, but the extrusion is easy to scratch the battery, which has a great safety hazard. Moreover, the size of the guide plate is huge, and it can only be used for a single battery. Therefore, when changing the type, not only the huge guide plate needs to be replaced, but also the stroke limiting piece needs to be replaced, which is quite troublesome and complex; and in the context of diverse specifications of the steel shell battery, the manufacturing cost is also high. SUMMARY

[0004] The purpose of the present application is to provide a steel shell battery formation and capacity sorting clamp to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A steel shell battery formation and capacity sorting clamp, comprising: a bottom frame assembly, a tray assembly, a steel shell battery positioning mechanism and a top frame assembly; a plurality of guide shafts are fixed on the bottom frame assembly; the tray assembly and the steel shell battery positioning mechanism are slidably installed to the guide shafts; the top frame assembly is installed to the top of the guide shafts; the bottom frame assembly, the tray assembly, the steel shell battery positioning mechanism and the top frame assembly are arranged in sequence from bottom to top along the guide shafts; The tray assembly comprises: a tray bottom plate, a tray and a battery tool for rough positioning of the steel shell battery; the tray is placed on the tray bottom plate; the battery tool is fixed to the tray; The steel shell battery positioning mechanism comprises: a positioning mechanism bottom plate, a thickness positioning assembly and a width positioning assembly; The thickness positioning assembly and the width positioning assembly are installed to the positioning mechanism bottom plate; The thickness positioning assembly comprises a thickness linear guide rail, a thickness positioning cylinder and two thickness sliding assemblies; the thickness positioning cylinder simultaneously drives the two thickness sliding assemblies to move towards each other; the thickness linear guide rail guides the sliding of the thickness sliding assembly; the thickness sliding assembly comprises a thickness positioning frame and a plurality of thickness limiting insulation rods; the thickness limiting insulation rods are installed to the thickness positioning frame; The width positioning assembly comprises a width linear guide rail, a width positioning cylinder, two width sliding assemblies; the width positioning cylinder simultaneously drives the two width sliding assemblies to move towards each other; the width linear guide rail guides the sliding of the width sliding assembly; the width sliding assembly comprises a width positioning frame and a plurality of width limiting insulation rods; the width limiting insulation rods are installed to the width positioning frame; the plurality of thickness limiting insulation rods and the plurality of width limiting insulation rods form a grid structure; The top frame assembly is provided with a top frame bottom plate, a lifting cylinder assembly and a probe fixing assembly; the lifting cylinder assembly drives the tray assembly and the steel shell battery positioning mechanism to move up and down along the guide shaft; the lifting cylinder assembly and the probe fixing assembly are installed to the top frame bottom plate; the probe fixing assembly is provided with a plurality of probes; After the lifting cylinder assembly drives the tray assembly to rise, the steel shell battery on the tray assembly enters the mesh hole of the grid structure and is positioned again by the steel shell battery positioning mechanism; the lifting cylinder assembly continues to move to make the steel shell battery contact the probe.

[0006] As a further scheme of the present application: the steel shell battery positioning mechanism further comprises a tray pressing assembly; the tray pressing assembly is fixed to the positioning mechanism bottom plate; after the tray assembly rises, the tray pressing assembly abuts against the tray to press the tray.

[0007] As a further scheme of the present application: the tray assembly further comprises a single-rod double-mechanism limiting assembly; the single-rod double-mechanism limiting assembly is detachably installed to the tray bottom plate; the single-rod double-mechanism limiting assembly is a stepped single-rod structure; The stepped surface of the stepped single-rod structure realizes the limiting between the tray assembly and the steel shell battery positioning mechanism; The top of the stepped single-rod structure realizes the limiting between the tray assembly and the top frame assembly.

[0008] As a further scheme of the present application: the tray bottom plate is formed with a positioning hole; the single-rod double-mechanism limiting assembly is pluggably inserted into the positioning hole; the tray bottom plate is provided with a magnet; the single-rod double-mechanism limiting assembly is magnetically fixed to the tray bottom plate by the magnet.

[0009] As a further scheme of the present application: the thickness positioning assembly further comprises a thickness reference assembly; the thickness reference assembly is arranged on the movement path of the thickness sliding assembly and abuts against the thickness sliding assembly as a reference positioning; The width positioning assembly further comprises a width reference assembly; the width reference assembly is arranged on the movement path of the width sliding assembly and abuts against the width sliding assembly as a reference positioning.

[0010] As a further scheme of the present application: the thickness positioning assembly further comprises: a thickness limiting assembly; the thickness limiting assembly limits the movement stroke of the thickness positioning cylinder. The width positioning assembly further comprises: a width limiting assembly; the width limiting assembly limits the movement stroke of the width positioning cylinder.

[0011] As a further scheme of the present application: the top frame assembly further comprises: a probe assembly sliding rail; the probe assembly sliding rail is fixed to the top frame bottom plate; the probe fixing assembly is slidably mounted to the top frame bottom plate through the probe assembly sliding rail; the probe fixing assembly comprises: a probe assembly bottom plate, a probe side sliding plate, a probe fixing assembly limiting block, a probe PCB adapter plate and a connector; the probe side sliding plate slides along the probe assembly sliding rail and is used for sliding out and advancing the probe fixing assembly; the probe fixing assembly limiting block is used for physically limiting the probe fixing assembly; the probe PCB adapter plate is provided with a plurality of probes; the connector is used for realizing electrical connection between the probe PCB adapter plate and the outside; the probe fixing assembly limiting block, the probe assembly bottom plate, the probe PCB adapter plate and the connector are mounted to the probe assembly bottom plate.

[0012] As a further scheme of the present application: the bottom frame assembly comprises: a bottom plate, a heating module, a fan and a tray in-place detection sensor; the heating module, the fan, the tray in-place detection sensor and the guide shaft are mounted to the bottom plate; the tray in-place detection sensor is used for in-place detection of the tray.

[0013] As a further scheme of the present application: the tray assembly further comprises: a tray guide limiting seat; the tray guide limiting seat is fixed to the tray bottom plate; the tray guide limiting seat abuts against the side surface of the tray and realizes positioning of the tray.

[0014] As a further scheme of the present application: the steel shell battery positioning mechanism further comprises: a tray assembly lifting rod; the tray assembly lifting rod is used for physical limiting when the steel shell battery positioning mechanism descends; the bottom frame assembly is provided with a lower limiting block; the lower limiting block is used for physical limiting when the tray assembly descends.

[0015] Compared with the prior art, the present application has the beneficial effects that: different specifications of batteries are coarsely positioned in a low-cost manner, and then are secondarily accurately positioned by the steel shell battery positioning mechanism, thereby reducing the cost. Compared with the traditional method, the requirement for the accuracy of the tray is reduced. Compared with the traditional method of using a guide plate for extrusion positioning, the battery is not easy to be damaged, and has better universality.

[0016] The lifting mechanism is simple, and the lifting cylinder assembly drives the tray assembly and the steel shell battery positioning mechanism to lift at the same time.

[0017] The single-rod double-mechanism limiting assembly can realize positioning of two structures, and compared with the traditional positioning method, the single-rod double-mechanism limiting assembly has fewer parts, is convenient to disassemble and assemble and is convenient to replace.

[0018] The steel shell battery positioning mechanism can realize secondary accurate positioning of the battery, and the limiting and insulating rod is used for limiting, so that the surface of the battery is not easy to scratch.

[0019] The steel shell battery positioning mechanism replaces the traditional battery guide plate which needs one-to-one replacement, saves a large amount of cost, does not need to replace the battery guide plate when changing type, and shortens the changing time.

[0020] The steel shell battery positioning mechanism reduces the number of pneumatic elements.

[0021] Other features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic view of a steel shell battery formation and component fixture of the present application; Figure 2 is Figure 1 is a schematic view of a bottom frame assembly of a steel shell battery formation and component fixture in the present application; Figure 3 is Figure 1 is a schematic view of a tray assembly of a steel shell battery formation and component fixture in the present application; Figure 4 is Figure 1 is a top view of a steel shell battery positioning mechanism of a steel shell battery formation and component fixture in the present application; Figure 5 is Figure 4 is a perspective view of the steel shell battery positioning mechanism in the present application; Figure 6 is Figure 1 is a schematic view of a top frame assembly of a steel shell battery formation and component fixture in the present application; Figure 7 is Figure 6 is a schematic view of a probe fixing assembly of the top frame assembly in the present application; Figure 8 is Figure 5 is a partial enlarged view of the structure in the present application.

[0023] LIST OF REFERENCE NUMBERS: Bottom frame assembly 1, tray assembly 2, steel shell battery positioning mechanism 3, top frame assembly 4, bottom plate 11, guide shaft 12, lower limit block 13, heating module 14, tray in place detection sensor 15, fan 16, tray bottom plate 21, tray 22, battery tooling 23, single rod dual mechanism limit assembly 24, tray guide limit seat 27, positioning mechanism bottom plate 31, thickness positioning assembly 33, tray pressing assembly 34, width positioning assembly 38, thickness positioning frame 330, thickness linear guide 331, thickness positioning cylinder 332 , thickness limit assembly 333, thickness limit insulating rod 334, thickness reference assembly 335, width in-place sensor 381, width positioning cylinder 382, ​​width linear guide 383, width limit insulating rod 384, tray assembly lifting rod 36, top frame bottom plate 41, probe assembly slide rail 44, probe fixing assembly 45, lifting cylinder assembly 46, probe side slide plate 451, probe fixing assembly limit block 453, probe assembly bottom plate 454, probe PCB adapter plate 455, probe 456, connector 457. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 8 As shown, a steel shell battery sub-capacity fixture includes: a bottom frame assembly 1, a tray assembly 2, a steel shell battery positioning mechanism 3 and a top frame assembly 4.

[0026] A plurality of guide shafts 12 are fixed on the base frame assembly 1. Specifically, there are four guide shafts 12, which are arranged at the four corners of the base frame assembly 1.

[0027] The base frame assembly 1 includes a base plate 11, a heating module 14, a fan 16, and a tray in-place detection sensor 15. The heating module 14, fan 16, tray in-place detection sensor 15, and guide shaft 12 are mounted to the base plate 11. The tray in-place detection sensor 15 detects the presence of the tray 22. The base frame assembly 1 is equipped with a lower limit block 13. This lower limit block 13 physically limits the position of the tray assembly 2 during its descent. A cable routing rack is also mounted on the base plate 11.

[0028] The tray assembly 2 and the steel-shell battery positioning mechanism 3 are slidably mounted to the guide shaft 12. The top frame assembly 4 is mounted on the top of the guide shaft 12. The bottom frame assembly 1, the tray assembly 2, the steel-shell battery positioning mechanism 3, and the top frame assembly 4 are arranged in sequence from bottom to top along the guide shaft 12.

[0029] The top frame assembly 4 is provided with a top frame bottom plate 41, a lifting cylinder assembly 46 and a probe fixing assembly 45. The lifting cylinder assembly 46 drives the tray assembly 2 and the steel shell battery positioning mechanism 3 to move up and down along the guide shaft 12. The lifting cylinder assembly 46 and the probe fixing assembly 45 are installed to the top frame bottom plate 41. The probe fixing assembly 45 is provided with a plurality of probes 456.

[0030] The tray assembly 2 comprises a tray bottom plate 21, a tray 22 and a battery tool 23 for rough positioning of the steel shell battery. The tray 22 is placed on the tray bottom plate 21. The tray assembly 2 further comprises a tray guide limiting seat 27. The tray guide limiting seat 27 is fixed to the tray bottom plate 21. The tray guide limiting seat 27 abuts against the side surface of the tray 22 to realize positioning of the tray 22. The battery tool 23 is fixed to the tray 22.

[0031] The steel shell battery positioning mechanism 3 comprises a positioning mechanism bottom plate 31, a thickness positioning assembly 33 and a width positioning assembly 38.

[0032] The thickness positioning assembly 33 and the width positioning assembly 38 are installed to the positioning mechanism bottom plate 31.

[0033] The thickness positioning assembly 33 comprises a thickness linear guide rail 331, a thickness positioning cylinder 332 and two thickness sliding assemblies. The thickness positioning cylinder 332 simultaneously drives the two thickness sliding assemblies to move towards each other. The thickness linear guide rail 331 guides the sliding of the thickness sliding assemblies. The thickness sliding assembly comprises a thickness positioning frame 330 and a plurality of thickness limiting insulating rods 334. The thickness limiting insulating rods 334 are installed to the thickness positioning frame 330. As a specific embodiment, the thickness positioning frame 330 is provided as an angle plate. The two ends of the plurality of thickness limiting insulating rods 334 are respectively fixed to the two angle plates.

[0034] The width positioning assembly 38 comprises a width linear guide rail 383, a width positioning cylinder 382, two width sliding assemblies. The width positioning cylinder 382 simultaneously drives the two width sliding assemblies to move towards each other. The width linear guide rail 383 guides the sliding of the width sliding assemblies. The width sliding assembly comprises a width positioning frame and a plurality of width limiting insulating rods 384. The width limiting insulating rods 384 are installed to the width positioning frame. The plurality of thickness limiting insulating rods 334 and the plurality of width limiting insulating rods 384 form a grid structure. The positioning mechanism bottom plate 31 is in a frame type, and the grid structure formed by the plurality of thickness limiting insulating rods 334 and the plurality of width limiting insulating rods 384 covers the hollow part of the frame type. The battery cell on the tray 22 passes through the hollow part of the frame type, and then the grid structure formed by the plurality of thickness limiting insulating rods 334 and the plurality of thickness limiting insulating rods 334 is used to position the battery cell for the second time, so as to improve the positioning precision. The thickness limiting insulating rods 334 and the width limiting insulating rods 384 are both in a cylindrical structure.

[0035] The thickness positioning assembly 33 and the width positioning assembly 38 have the same structure and working principle, and the corresponding parts have the same structure and working principle.

[0036] After the lifting cylinder assembly 46 lifts the tray assembly 2, the steel shell batteries on the tray assembly 2 enter the mesh holes of the grid structure and are positioned by the steel shell battery positioning mechanism 3, and the lifting cylinder assembly 46 continues to move to make the steel shell batteries contact the probes 456.

[0037] As a specific embodiment, the steel shell battery positioning mechanism 3 further comprises a tray pressing assembly 34. The tray pressing assembly 34 is fixed to the positioning mechanism bottom plate 31. After the tray assembly 2 is lifted, the tray pressing assembly 34 abuts against the tray 22 to press the tray 22.

[0038] As a specific embodiment, the steel shell battery positioning mechanism 3 further comprises a tray assembly lifting rod 36. The tray assembly lifting rod 36 is used for physical limiting when the steel shell battery positioning mechanism 3 is lowered. When the tray assembly 2 is lowered, the steel shell battery positioning mechanism 3 is lowered synchronously until the tray assembly lifting rod 36 tightens the steel shell battery positioning mechanism 3 and the top frame assembly 4, at which time the steel shell battery positioning mechanism 3 no longer continues to be lowered under the action of the tray assembly lifting rod 36. When the steel shell battery positioning mechanism 3 is lifted, the tray assembly lifting rod 36 can move upward. The tray assembly lifting rod 36 and the top frame assembly 4 form a sliding connection. The top of the tray assembly lifting rod 36 is provided with a T-shaped flange structure.

[0039] As a specific embodiment, the tray assembly 2 further comprises a single-rod double-mechanism limiting assembly 24. The single-rod double-mechanism limiting assembly 24 is detachably installed to the tray bottom plate 21. The single-rod double-mechanism limiting assembly 24 is a single-rod structure with steps. The step surface of the single-rod structure with steps realizes the limiting between the tray assembly 2 and the steel shell battery positioning mechanism 3. The top of the single-rod structure with steps realizes the limiting between the tray assembly 2 and the top frame assembly 4.

[0040] The tray bottom plate 21 is formed with a positioning hole. The single-rod double-mechanism limiting assembly 24 is pluggably inserted into the positioning hole. The tray bottom plate 21 is provided with a magnet, and the single-rod double-mechanism limiting assembly 24 is magnetically fixed to the tray bottom plate 21.

[0041] After the lifting cylinder assembly 46 lifts the tray assembly 2, the single-rod double-mechanism limiting assembly 24 penetrates through the positioning mechanism bottom plate 31, the step surface of the single-rod double-mechanism limiting assembly 24 abuts against the positioning mechanism bottom plate 31 to realize the positioning between the steel shell battery positioning mechanism 3 and the tray assembly 2, at which time when the lifting cylinder assembly 46 continues to lift the tray assembly 2, the steel shell battery positioning mechanism 3 will be lifted upward together with the tray assembly 2.

[0042] As a specific embodiment, the thickness positioning assembly 33 further includes a thickness reference assembly 335. The thickness reference assembly 335 is disposed along the motion path of the thickness sliding assembly and abuts against the thickness sliding assembly for reference positioning. The width positioning assembly 38 further includes a width reference assembly. The width reference assembly is disposed along the motion path of the width sliding assembly and abuts against the width sliding assembly for reference positioning.

[0043] As a specific embodiment, the thickness positioning assembly 33 further includes a thickness limiting assembly 333 . The thickness absorbing assembly is used to limit the movement stroke of the thickness positioning cylinder 332 .

[0044] The width positioning assembly 38 further includes a width limiting assembly that limits the movement stroke of the width positioning cylinder 382 .

[0045] As a specific embodiment, the top frame assembly 4 also includes a probe assembly slide rail 44. The probe assembly slide rail 44 is fixed to the top frame bottom plate 41. The probe fixing assembly 45 is slidably mounted to the top frame bottom plate 41 via the probe assembly slide rail 44. The probe fixing assembly 45 includes a probe assembly bottom plate 454, a probe side slide plate 451, a probe fixing assembly stopper 453, a probe PCB adapter plate 455, and a connector 457. The probe side slide plate 451 slides along the probe assembly slide rail 44 to allow the probe fixing assembly 45 to slide out and advance. The probe fixing assembly stopper 453 is used to physically limit the probe fixing assembly 45. The probe PCB adapter plate 455 is provided with a plurality of probes 456. The connector 457 is used to electrically connect the probe PCB adapter plate 455 to the outside. The probe fixing assembly stopper 453, the probe assembly bottom plate 454, the probe PCB adapter plate 455, and the connector 457 are mounted to the probe assembly bottom plate 454.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A steel shell battery capacity fixture, characterized in that: include: A bottom frame assembly (1), a tray assembly (2), a steel shell battery positioning mechanism (3) and a top frame assembly (4); a plurality of guide shafts (12) are fixed on the bottom frame assembly (1); the tray assembly (2) and the steel shell battery positioning mechanism (3) are slidably mounted on the guide shafts (12); the top frame assembly (4) is mounted on the top of the guide shafts (12); the bottom frame assembly (1), the tray assembly (2), the steel shell battery positioning mechanism (3) and the top frame assembly (4) are arranged in sequence from bottom to top along the guide shafts (12); The tray assembly (2) comprises: a tray bottom plate (21), a tray (22), and a battery tool (23) for roughly positioning the steel-shell battery; the tray (22) is placed on the tray bottom plate (21); and the battery tool (23) is fixed to the tray (22); The steel shell battery positioning mechanism (3) comprises: a positioning mechanism bottom plate (31), a thickness positioning component (33) and a width positioning component (38); The thickness positioning assembly (33) and the width positioning assembly (38) are mounted on the positioning mechanism bottom plate (31); The thickness positioning assembly (33) includes: a thickness linear guide rail (331), a thickness positioning cylinder (332) and two thickness sliding assemblies; the thickness positioning cylinder (332) simultaneously drives the two thickness sliding assemblies to move toward each other; the thickness linear guide rail (331) guides the sliding of the thickness sliding assemblies; the thickness sliding assembly includes: a thickness positioning frame (330) and a plurality of thickness limiting insulating rods (334); the thickness limiting insulating rods (334) are mounted on the thickness positioning frame (330); The width positioning assembly (38) includes: a width linear guide rail (383), a width positioning cylinder (382), and two width sliding assemblies; the width positioning cylinder (382) simultaneously drives the two width sliding assemblies to move toward each other; the width linear guide rail (383) guides the sliding of the width sliding assemblies; the width sliding assembly includes: a width positioning frame and a plurality of width limiting insulating rods (384); the width limiting insulating rods (384) are installed on the width positioning frame; a plurality of thickness limiting insulating rods (334) and a plurality of width limiting insulating rods (384) form a grid structure; The top frame assembly (4) is provided with a top frame bottom plate (41), a lifting cylinder assembly (46) and a probe fixing assembly (45); the lifting cylinder assembly (46) drives the tray assembly (2) and the steel shell battery positioning mechanism (3) to move up and down along the guide shaft (12); the lifting cylinder assembly (46) and the probe fixing assembly (45) are mounted on the top frame bottom plate (41); the probe fixing assembly (45) is provided with a plurality of probes (456); After the lifting cylinder assembly (46) drives the tray assembly (2) to rise, the steel-shell battery on the tray assembly (2) enters the mesh of the grid structure and is secondary positioned by the steel-shell battery positioning mechanism (3), and the lifting cylinder assembly (46) continues to move so that the steel-shell battery contacts the probe (456).

2. A steel shell battery capacity fixture according to claim 1, characterized in that: The steel shell battery positioning mechanism (3) further comprises: a tray pressing assembly (34); the tray pressing assembly (34) is fixed to the positioning mechanism bottom plate (31); after the tray assembly (2) rises, the tray pressing assembly (34) abuts against the tray (22) to press the tray (22).

3. The steel shell battery capacity splitting fixture according to claim 1, characterized in that: The tray assembly (2) further comprises: a single-rod dual-mechanism position-limiting assembly (24); the single-rod dual-mechanism position-limiting assembly (24) is detachably mounted to the tray bottom plate (21); the single-rod dual-mechanism position-limiting assembly (24) is a single-rod structure with a step; The stepped surface of the stepped single-rod structure realizes the position limitation between the tray assembly (2) and the steel shell battery positioning mechanism (3); The top of the stepped single-rod structure realizes the position limiting between the tray assembly (2) and the top frame assembly (4).

4. The steel shell battery capacity fixture according to claim 3, characterized in that: The tray bottom plate (21) is formed with a positioning hole; the single-rod dual-mechanism limiting assembly (24) is pluggably inserted into the positioning hole; the tray bottom plate (21) is provided with a magnet, and the single-rod dual-mechanism limiting assembly (24) is magnetically fixed to the tray bottom plate (21) by the magnet.

5. The steel shell battery capacity splitting fixture according to claim 1, characterized in that: The thickness positioning component (33) further includes: a thickness reference component (335); the thickness reference component (335) is arranged on the movement path of the thickness sliding component and abuts against the thickness sliding component as a reference positioning; The width positioning component (38) further includes: a width reference component; the width reference component is arranged on the movement path of the width sliding component and abuts against the width sliding component as a reference positioning.

6. The steel shell battery capacity splitting fixture according to claim 5, characterized in that: The thickness positioning component (33) further comprises: a thickness limiting component (333); the thickness limiting component realizes the movement stroke limitation of the thickness positioning cylinder (332); The width positioning assembly (38) further comprises: a width limiting assembly; the width limiting assembly realizes the movement stroke limitation of the width positioning cylinder (382).

7. The steel shell battery capacity splitting fixture according to claim 1, characterized in that: The top frame assembly (4) further comprises: a probe assembly slide rail (44); the probe assembly slide rail (44) is fixed to the top frame bottom plate (41); the probe fixing assembly (45) is slidably mounted to the top frame bottom plate (41) via the probe assembly slide rail (44); the probe fixing assembly (45) comprises: a probe assembly bottom plate (454), a probe side slide plate (451), a probe fixing assembly limit block (453), a probe PCB adapter plate (455) and a connector (457); the probe side slide plate (451) slides along the probe assembly slide rail (44), Used for sliding out and pushing in the probe fixing assembly (45); the probe fixing assembly limit block (453) is used for physically limiting the probe fixing assembly (45); a plurality of probes (456) are provided on the probe PCB adapter board (455); the connector (457) is used for realizing electrical connection between the probe PCB adapter board (455) and the outside; the probe fixing assembly limit block (453), the probe assembly base plate (454), the probe PCB adapter board (455) and the connector (457) are installed on the probe assembly base plate (454).

8. The steel shell battery capacity splitting fixture according to claim 1, characterized in that: The bottom frame assembly (1) comprises: a bottom plate (11), a heating module (14), a fan (16) and a tray in-place detection sensor (15); the heating module (14), the fan (16), the tray in-place detection sensor (15) and the guide shaft (12) are mounted on the bottom plate (11); the tray in-place detection sensor (15) is used for detecting the in-place position of the tray (22).

9. The steel shell battery capacity splitting fixture according to claim 1, characterized in that: The tray assembly (2) further comprises: a tray guide limit seat (27); the tray guide limit seat (27) is fixed to the tray bottom plate (21); the tray guide limit seat (27) abuts against the side surface of the tray (22) to achieve positioning of the tray (22).

10. The steel shell battery capacity splitting fixture according to claim 1, characterized in that: The steel shell battery positioning mechanism (3) further comprises: a tray assembly lifting rod (36); the tray assembly lifting rod (36) is used for physical limiting when the steel shell battery positioning mechanism (3) is lowered; the bottom frame assembly (1) is provided with a lower limiting block (13); the lower limiting block (13) is used for physical limiting when the tray assembly (2) is lowered.

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