Jacking device and battery manufacturing equipment

Abstract

The utility model provides a jacking device and battery manufacturing equipment, the jacking device comprises a frame body, a lifting driving piece, a support frame, a limiting piece and a pressure sensor, the lifting driving piece is arranged on the frame body, the support frame is movably arranged on the frame body, the lifting driving piece is in driving connection with the support frame, the support frame is provided with a clamping structure, and the limiting piece is arranged on the clamping structure. The first end of the limiting piece is connected with the supporting frame, the second end of the limiting piece is slidably arranged on the frame body in the height direction of the frame body, and the pressure sensor is arranged between the lifting driving piece and the supporting frame. According to the jacking device, the lifting driving piece is adopted for adjusting the position of the clamping structure, the jacking device monitors the pressure change in the lifting process in real time through the integrated pressure sensor, the stability and accuracy of the clamping structure in the welding process are guaranteed, manual participation is reduced, the adjusting convenience is improved, the adjusting efficiency is improved, and the welding quality is improved. Therefore, the production quality problem caused by poor flatness of the battery cell arranged on the clamp in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of battery manufacturing, and specifically relates to a jacking device and battery manufacturing equipment. BACKGROUND

[0002] The manufacturing of the battery includes three main links of electrode manufacturing, cell assembly and formation detection, and the cell assembly link mainly involves main processes of tab welding, top cover welding and cell shell entering.

[0003] In the conventional process, in the tab welding process, the cell is placed in the clamp in a side-lying form, the tab of the cell extends from one side and is connected to the adapter piece in the clamp through welding, in the top cover welding process, the transfer mechanism transfers the welded cell and the adapter piece to the clamp for top cover welding, at this time, the cell is still placed in the clamp in a side-lying form. In the above-mentioned tab welding process and top cover welding process, the adapter piece and the top cover are placed in the clamp, the end surface of the clamp provides support force for the adapter piece and the top cover, and the welding protection mechanism is used to press the adapter piece and the tab, or the adapter piece and the top cover, so as to assist the welding operation. Therefore, in the conventional process, in order to meet the quality requirements of welding, the clamp for placing the adapter piece and the top cover is adjusted in advance, so that the occurrence of welding problems such as virtual welding can be avoided.

[0004] In a new process, whether it is the tab welding process or the top cover welding process, the cell is placed in the clamp in a standing state, and in the welding process of the tab and the adapter piece, or the adapter piece and the top cover, the adapter piece and the top cover are mainly supported by the end surface of the cell. Since the cell itself is not a rigid structure, the support end surface of the cell may have a flatness problem, that is, one side of the cell placed in the clamp is higher, and the other side is lower. This problem will directly affect the quality of the cell assembly link, resulting in poor consistency of the produced battery, and even more likely to cause product safety problems.

[0005] From the above, for the battery produced by the new process, the cell placed in the clamp still has the production quality problem caused by poor flatness. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide a jacking device and battery manufacturing equipment, so as to solve the problem of inconvenient adjustment and poor stability of the welding jacking platform in the prior art.

[0007] In order to achieve the above object, according to one aspect of the utility model, provide a kind of jacking device, jacking device includes frame body, lifting drive, support frame, limit piece and pressure sensor, lifting drive is set on frame body, support frame is movably arranged in frame body, lifting drive is driven connection with support frame, support frame has clamping structure, the first end of limit piece is connected with support frame, the second end of limit piece is slidably arranged on frame body along the height direction of frame body, pressure sensor is arranged between lifting drive and support frame.

[0008] Further, the frame body includes a bottom plate, a top plate, and two side plates disposed between the bottom plate and the top plate. The lifting drive is disposed on the side of the top plate facing the bottom plate. The driving end of the lifting drive extends to the upper side of the top plate and is connected to the first end of the support frame. The pressure sensor is disposed on the driving end. The second end of the support frame penetrates through the top plate and extends into the space between the top plate and the bottom plate. The clamping structure and the limit piece are disposed between the top plate and the bottom plate.

[0009] Further, the mutually facing sides of the two side plates have sliding rails disposed along the height direction of the frame body. Part of the limit piece is slidably disposed inside the sliding rails. Additionally or alternatively, reinforcing ribs are disposed on the mutually facing sides of the two side plates and are connected to the bottom plate.

[0010] Further, the support frame includes a bottom bracket, a top bracket, and two side brackets disposed between the top bracket and the bottom bracket. The top bracket is disposed on the side of the top plate facing away from the bottom plate. The driving end of the lifting drive is connected to the top bracket. The bottom bracket is disposed between the top plate and the bottom plate. The clamping structure is disposed on the bottom bracket. The side brackets are disposed between the two side plates along the length direction of the frame body. The side brackets are parallel to and correspond to the side plates. The limit piece is disposed on the side of the side bracket facing the side plate.

[0011] Further, the clamping structure includes an upper clamping plate, a connecting plate, and a lower clamping plate. One end of the connecting plate is connected to the bottom bracket. The other end of the connecting plate is fixedly connected to the upper clamping plate. The lower clamping plate is disposed on the bottom bracket. The upper clamping plate and the lower clamping plate are parallelly disposed.

[0012] Further, the clamping structure further includes a backing plate, an elastic member, and a positioning pin. The backing plate is disposed between the bottom plate and the upper clamping plate. The lower clamping plate is disposed on the side of the backing plate facing away from the bottom plate. The elastic member is disposed between the backing plate and the bottom plate. The positioning pin is disposed on the bottom plate and extends along the height direction of the frame body. The positioning pin penetrates through the backing plate and is slidably connected to the backing plate.

[0013] Further, along the length direction of the frame body, the two side plates are symmetrically disposed about the lifting drive. Additionally or alternatively, the two side brackets are symmetrically disposed about the lifting drive.

[0014] Further, the jacking device further comprises a limiting block and a floating joint, the limiting block is arranged on the side of the top support facing the bottom support, and the floating joint is arranged on the driving end.

[0015] Further, the limiting blocks are arranged in pairs, the two limiting blocks arranged in pairs are symmetrically arranged about the driving end, the two limiting blocks arranged in pairs form a limiting space, the pressure sensor is arranged inside the limiting space, and at least part of the floating joint is arranged inside the limiting space.

[0016] According to another aspect of the utility model, a battery manufacturing equipment is provided, and the battery manufacturing equipment comprises the jacking device.

[0017] The jacking device comprises a frame body, a lifting driving element, a supporting frame, a limiting piece and a pressure sensor, the lifting driving element is arranged on the frame body, the supporting frame is movably arranged on the frame body, the lifting driving element is drivingly connected with the supporting frame, the supporting frame is provided with a clamping structure, a first end of the limiting piece is connected with the supporting frame, a second end of the limiting piece is slidably arranged on the frame body along the height direction of the frame body, and the pressure sensor is arranged between the lifting driving element and the supporting frame.

[0018] As can be seen from the above, the jacking device of the application adopts the lifting driving element to realize the lifting movement of the supporting frame, so as to adjust the position of the clamping structure, the jacking device of the application realizes real-time monitoring of the pressure change in the lifting process through the integrated pressure sensor, the pressure sensor cooperates with the lifting driving element to ensure the stability and accuracy of the clamping structure in the welding process, reduces the manual participation, improves the convenience of adjustment, and improves the adjustment efficiency.

[0019] The jacking device of the application adopts the structure of the limiting piece slidably arranged between the supporting frame and the frame body, which realizes the limitation of the movement of the supporting frame, thereby being conducive to improving the stability of the movement of the clamping structure and avoiding the phenomenon that the clamping flatness of the clamping structure is affected due to the shaking or deviation of the supporting frame. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of the application form part of the application and are used to provide a further understanding of the application, the illustrative embodiments of the application and the explanations thereof serve to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0021] Figure 1 A perspective structural schematic view of the jacking device provided by the application is provided.

[0022] Figure 2 A schematic view of the clamping structure of the jacking device provided by the application is provided.

[0023] Figure 3The cooperation structure schematic diagram of the jacking device, the mounting jig and the battery provided by the present application is shown.

[0024] Among them, the above figure includes the following reference signs:

[0025] 10, frame body; 110, bottom plate; 120, top plate; 130, side plate; 131, sliding rail; 140, reinforcing rib; 20, lifting driving piece; 30, support frame; 310, top support; 320, side support; 330, bottom support; 340, clamping structure; 341, upper clamping plate; 342, lower clamping plate; 343, pad plate; 344, elastic piece; 345, positioning pin; 346, connecting plate; 40, limiting piece; 50, pressure sensor; 60, floating joint; 70, limiting block; 710, first part; 720, second part; 80, mounting jig; 90, battery. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0028] In the present application, unless otherwise specified, the orientation words such as "upper, lower, top, bottom" used are generally with respect to the direction shown in the drawings, or with respect to the vertical, perpendicular or gravity direction of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer with respect to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0029] Embodiment one

[0030] In order to solve the production quality problem of the battery cell placed on the clamp due to poor flatness in the prior art, the present application provides a jacking device, which is used for clamping a mounting jig 80 of a battery, so as to drive the mounting jig 80 to move up and down, and at the same time, the jacking device is used to provide support for keeping the mounting jig 80 horizontal.

[0031] As Figure 1 and Figure 2As shown, the lifting device includes a frame 10, a lifting drive component 20, a support frame 30, a limiting component 40, and a pressure sensor 50. The lifting drive component 20 is mounted on the frame 10, and the support frame 30 is movably mounted on the frame 10. The lifting drive component 20 and the support frame 30 are drivenly connected. The support frame 30 has a clamping structure 340. The first end of the limiting component 40 is connected to the support frame 30, and the second end of the limiting component 40 is slidably mounted on the frame 10 along the height direction of the frame 10. The pressure sensor 50 is located between the lifting drive component 20 and the support frame 30.

[0032] The clamping structure 340 provides a parallel clamping space for clamping the mounting fixture 80.

[0033] Specifically, the lifting device of this application uses a lifting drive component 20 to drive the support frame 30 to move up and down, so as to adjust the position of the clamping structure 340. The lifting device of this application monitors the pressure changes in real time during the lifting process through an integrated pressure sensor 50. The pressure sensor 50 and the lifting drive component 20 work together to ensure the stability and accuracy of the clamping structure 340 during the welding process, reduce manual intervention, improve the convenience of adjustment, and improve the adjustment efficiency.

[0034] In this embodiment, the support frame 30 can be adjusted via the lifting drive component 20 based on the pressure feedback from the pressure sensor 50, thereby achieving position adjustment of the clamping structure 340. This eliminates the need for repeated manual testing and adjustment of the clamping structure 340's level. The structural design of this application helps reduce the complexity of structural operations, thus improving the operational efficiency of the lifting device. Both the pressure sensor 50 and the lifting drive component 20 are connected to the controller signal, allowing the controller to provide pressure feedback and adjust the state of the lifting drive component 20.

[0035] In this embodiment, the lifting drive 20 is a telescopic motor. The lifting drive 20 drives the support frame 30 to move up and down by extending and retracting along the height direction of the frame 10 through the output shaft.

[0036] Among them, the length direction of frame 10 is Figure 1 As shown in the X direction, the width direction of the frame 10 is... Figure 1 As shown in the Y direction, the height direction of the frame 10 is... Figure 1 The Z direction is shown.

[0037] The lifting device of this application adopts a limiting member 40 that is slidably set between the support frame 30 and the frame 10 to restrict the movement of the support frame 30, thereby improving the stability of the movement of the clamping structure 340 and avoiding the phenomenon that the support frame 30 shakes or shifts, which would affect the clamping flatness of the clamping structure 340.

[0038] like Figure 1As shown, the frame body 10 includes a bottom plate 110, a top plate 120, and two side plates 130 arranged between the bottom plate 110 and the top plate 120, the lifting drive 20 is arranged on the side of the top plate 120 facing the bottom plate 110, the driving end of the lifting drive 20 is connected to the first end of the support frame 30 by extending to the upper side of the top plate 120, the pressure sensor 50 is arranged on the driving end, the second end of the support frame 30 penetrates the top plate 120 and extends into the space between the top plate 120 and the bottom plate 110, and the clamping structure 340 and the limiting piece 40 are arranged between the top plate 120 and the bottom plate 110.

[0039] The bottom plate 110, the top plate 120, and the two side plates 130 cooperatively form a frame structure to provide stable support, the clamping structure 340 and the limiting piece 40 are arranged in the internal space of the frame structure, and the two side plates 130 are symmetrically arranged relative to the lifting drive 20 to realize that the lifting drive 20 is centrally arranged in the frame body 10, thereby ensuring that the support frame 30 is centrally arranged and ensuring that the overall structure is uniformly stressed.

[0040] Specifically, the two side plates 130 are arranged at intervals along the length direction of the frame body 10 to form a mounting space for mounting the lifting drive 20, the support frame 30, and the limiting piece 40, the driving end of the lifting drive 20 is an extension shaft extending to the upper side of the top plate 120, part of the support frame 30 is arranged on the upper side of the top plate 120 and connected to the driving end of the lifting drive 20, and the other part of the support frame 30 penetrates the top plate 120 and extends into the internal space of the frame structure and is slidingly connected to the side plate 130 through the limiting piece 40.

[0041] The lifting drive 20 is arranged on the top plate 120, which is conducive to ensuring the stability of the installation of the lifting drive 20 and making the lifting drive 20 more efficient.

[0042] In the embodiment, the two side plates 130 have sliding rails 131 arranged along the height direction of the frame body 10 on the sides facing each other, and part of the limiting piece 40 is slidingly arranged on the sliding rails 131, the sliding cooperation of the limiting piece 40 and the sliding rails 131 realizes the movement of the limiting support frame 30, so as to ensure that the support frame 30 only moves along the height direction of the frame body 10, avoiding the problem of poor flatness caused by the inclination or offset movement of the support frame 30.

[0043] In the embodiment, reinforcing ribs 140 are arranged on the sides of the two side plates 130 away from each other, and the reinforcing ribs 140 are connected to the bottom plate 110. The reinforcing ribs 140 are arranged on the outer sides of the two side plates 130 to support the side plates 130, avoiding structural deformation and thereby improving the strength of the overall structure.

[0044] As shown in the drawings, Figure 1As shown, the support frame 30 comprises a bottom support 330, a top support 310 and two side supports 320 arranged between the top support 310 and the bottom support 330, and the top support 310, the bottom support 330 and the two side supports 320 cooperatively form a frame structure.

[0045] The top support 310 is arranged on the side of the top plate 120 away from the bottom plate 110, the driving end of the lifting drive 20 is connected with the top support 310, the bottom support 330 is arranged between the top plate 120 and the bottom plate 110, the clamping structure 340 is arranged on the bottom support 330, the side support 320 is arranged between the two side plates 130 along the length direction of the frame body 10, the side support 320 is arranged in parallel with and one-to-one corresponding to the side plate 130, and the limiting piece 40 is arranged on the side of the side support 320 facing the side plate 130.

[0046] Specifically, the top end of the side support 320 is connected with the top support 310, and the bottom end of the side support 320 penetrates through the top plate 120 and is connected with the bottom support 330, and the structure that the side support 320 penetrates through the top plate 120 is further conducive to limiting the support frame 30. The one-to-one corresponding structure between the side support 320 and the side plate 130 adopted by the present application facilitates the arrangement of the limiting piece 40 between the side plate 130 and the side support 320, and the side support 320 is slidingly connected with the side plate 130 through the limiting piece 40, that is, two limiting pieces 40 are arranged between the corresponding two side plates 130 and the side support 320, which is conducive to ensuring the stable movement of the support frame 30.

[0047] The two side supports 320 are symmetrically arranged about the lifting drive 20. The two side supports 320 are symmetrically arranged on the two sides of the lifting drive 20, which is conducive to ensuring the uniformity of the force between the lifting drive 20 and the support frame 30 and ensuring the stable movement of the support frame 30 along the height direction of the frame body 10.

[0048] In the embodiment, the jacking device further comprises a limiting block 70 and a floating joint 60, the limiting block 70 is arranged on the side of the top support 310 facing the bottom support 330, the floating joint 60 is arranged on the driving end, and the pressure sensor 50 is arranged between the floating joint 60 and the support frame 30.

[0049] The two limiting blocks 70 are symmetrically arranged relative to the driving end, and the two limiting blocks 70 are spaced apart along the length direction of the frame body 10 to form a limiting space, the pressure sensor 50 is arranged inside the limiting space formed by the two limiting blocks 70, and the limiting block 70 has the technical effects of limiting and protecting the pressure sensor 50.

[0050] In the embodiment, each limiting block 70 comprises a first part 710 and a second part 720 fixedly connected, the first part 710 and the second part 720 cooperatively form an L-shaped structure, the top end of the first part 710 is connected with the top support 310, one end of the second part 720 is connected with the bottom end of the first part 710, and the other end of the second part 720 extends along the length direction of the rack body 10. In the embodiment, the other ends of the two second parts 720 on the two limiting blocks 70 extend in directions towards each other, and the two second parts 720 are spaced apart to form an opening, at least part of the floating joint 60 is arranged at the opening to limit the floating joint 60 through the two second parts 720.

[0051] In the embodiment, as shown in Figure 2 The clamping structure 340 is arranged on the bottom support 330 of the support frame 30, the clamping structure 340 comprises an upper clamping plate 341, a connecting plate 346 and a lower clamping plate 342, one end of the connecting plate 346 is connected with the bottom support 330, the other end of the connecting plate 346 is fixedly connected with the upper clamping plate 341, and the lower clamping plate 342 is arranged on the bottom support 330, the upper clamping plate 341 and the lower clamping plate 342 are arranged in parallel.

[0052] Specifically, the connecting plate 346 stands on the bottom support 330, the bottom end of the connecting plate 346 is connected with the bottom support 330, and the upper clamping plate 341 is arranged on the top end of the connecting plate 346, the upper clamping plate 341 and the lower clamping plate 342 are spaced apart along the height direction of the rack body 10 to form a clamping space for clamping the mounting jig 80.

[0053] The clamping structure 340 further comprises a pad plate 343 and an elastic member 344, the pad plate 343 is arranged between the bottom support 330 and the upper clamping plate 341, the lower clamping plate 342 is arranged on the side of the pad plate 343 away from the bottom plate 110, and the elastic member 344 is arranged between the pad plate 343 and the bottom support 330.

[0054] The elastic member 344 can be a plate structure capable of elastic deformation or a spring.

[0055] Specifically, the pad plate 343 is arranged to provide a mounting position for the lower clamping plate 342, and the pad plate 343 can also increase the contact area with the elastic member 344.

[0056] In the embodiment, the elastic member 344 is arranged between the pad plate 343 and the lower clamping plate 342, the elastic member 344 has a buffering clamping effect, and can be slightly adjusted through elastic deformation while buffering external force when the upper clamping plate 341 and the lower clamping plate 342 clamp the mounting jig 80, so as to achieve the effect of horizontal correction, thereby ensuring that the mounting jig 80 is clamped horizontally at the clamping structure 340.

[0057] In this embodiment, the clamping structure 340 further includes a positioning pin 345, which is disposed on the base plate 110 and extends along the height direction of the frame 10. The positioning pin 345 passes through the pad plate 343 and is slidably connected to the pad plate 343. The positioning pin 345 has a limiting effect, allowing for partial or complete fine-tuning of the pad plate 343 and the lower clamping plate 342 along the height direction of the frame 10, preventing the pad plate 343 and the lower clamping plate 342 from shifting in the horizontal direction.

[0058] In this embodiment, the lifting device also includes a display and a controller, which are mounted on the frame 10. The controller is connected to the display, the pressure sensor 50 and the lifting drive 20 to display the real-time pressure value through the display.

[0059] Example 2

[0060] This embodiment provides a battery manufacturing equipment, which includes the lifting device from Embodiment 1.

[0061] like Figure 3 As shown, the battery manufacturing equipment also includes a mounting fixture 80, in which the battery 90 is placed upright. At least a portion of the mounting fixture 80 is clamped and fixed inside the clamping structure so that the bottom surface of the battery 90 is parallel to the horizontal plane, thereby facilitating the vertical welding operation of the battery 90.

[0062] In this embodiment, two lifting devices are provided, which are located on both sides of the installation fixture to ensure that the installation fixture is subjected to uniform force and further improve the stability of the installation fixture.

[0063] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0064] The lifting device of this application uses a lifting drive component 20 to realize the lifting movement of the support frame 30 in order to adjust the position of the clamping structure 340. The lifting device of this application monitors the pressure changes in real time during the lifting process through an integrated pressure sensor 50. The pressure sensor 50 and the lifting drive component 20 work together to ensure the stability and accuracy of the clamping structure 340 during the welding process, reduce manual intervention, improve the convenience of adjustment, and improve adjustment efficiency.

[0065] The lifting device of this application adopts a limiting member 40 that is slidably set between the support frame 30 and the frame 10 to restrict the movement of the support frame 30, thereby improving the stability of the movement of the clamping structure 340 and avoiding the phenomenon that the support frame 30 shakes or shifts, which would affect the clamping flatness of the clamping structure 340.

[0066] The elastic member 344 has a buffering clamping effect, and when the upper clamping plate 341 and the lower clamping plate 342 clamp the mounting jig 80, the elastic member 344 has the effect of buffering the external force and can be fine-tuned through elastic deformation, achieving the effect of horizontal correction, so as to ensure that the mounting jig 80 is clamped horizontally at the clamping structure 340.

[0067] The positioning pin 345 has the effect of limiting the height of the clamping structure 340, so that the clamping structure 340 can be fine-tuned in the height direction of the frame body 10, and the phenomenon that the clamping structure 340 is offset in the horizontal direction is avoided.

[0068] Obviously, the above-described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0069] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0070] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0071] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A jacking device, characterized in that The jacking device comprises: a frame body (10); a lifting drive (20) arranged on the frame body (10); a support frame (30) movably arranged on the frame body (10), the lifting drive (20) being drivingly connected with the support frame (30), the support frame (30) having a clamping structure (340) thereon; a limiting member (40), a first end of the limiting member (40) being connected with the support frame (30), a second end of the limiting member (40) being slidingly arranged on the frame body (10) along a height direction of the frame body (10); a pressure sensor (50) arranged between the lifting drive (20) and the support frame (30).

2. Jacking device according to claim 1, characterized in that The frame body (10) comprises a bottom plate (110), a top plate (120), and two side plates (130) arranged between the bottom plate (110) and the top plate (120), the lifting drive (20) being arranged on a side of the top plate (120) facing the bottom plate (110), a driving end of the lifting drive (20) extending to an upper side of the top plate (120) and being connected with a first end of the support frame (30), the pressure sensor (50) being arranged on the driving end, a second end of the support frame (30) penetrating through the top plate (120) and extending into a space between the top plate (120) and the bottom plate (110), the clamping structure (340) and the limiting member (40) being arranged between the top plate (120) and the bottom plate (110).

3. The jacking device according to claim 2, wherein the mutually facing sides of the two side plates (130) are provided with sliding rails (131) arranged along the height direction of the frame body (10), and a part of the limiting member (40) is slidingly arranged on the sliding rails (131); and / or the mutually facing sides of the two side plates (130) are provided with reinforcing ribs (140) connected with the bottom plate (110).

4. The jacking device of claim 2, wherein The support frame (30) comprises a bottom bracket (330), a top bracket (310), and two side brackets (320) arranged between the top bracket (310) and the bottom bracket (330), the top bracket (310) is arranged on a side of the top plate (120) facing away from the bottom plate (110), and the driving end of the lifting drive (20) is connected with the top bracket (310); the bottom bracket (330) is arranged between the top plate (120) and the bottom plate (110), and the clamping structure (340) is arranged on the bottom bracket (330); the side brackets (320) are arranged between the two side plates (130) along a length direction of the frame body (10), the side brackets (320) are arranged in parallel with and one-to-one corresponding to the side plates (130), and the limiting member (40) is arranged on a side of the side bracket (320) facing the side plate (130).

5. Jacking device according to claim 4, characterized in that The clamping structure (340) comprises: an upper clamping plate (341); A connecting plate (346) is connected to one end of the bottom support (330), and the other end of the connecting plate (346) is fixedly connected to the upper clamping plate (341); A lower clamping plate (342) is arranged on the bottom support (330), and the upper clamping plate (341) and the lower clamping plate (342) are arranged in parallel.

6. Jacking device according to claim 5, characterized in that The clamping structure (340) further comprises: A backing plate (343) is arranged between the bottom plate (110) and the upper clamping plate (341), and the lower clamping plate (342) is arranged on the side of the backing plate (343) away from the bottom plate (110); An elastic member (344) is arranged between the backing plate (343) and the bottom plate (110); A positioning pin (345) is arranged on the bottom plate (110) and extends in the height direction of the frame body (10), and the positioning pin (345) penetrates the backing plate (343) and is in sliding connection with the backing plate (343).

7. The jacking device of claim 4, wherein Along the length direction of the frame body (10), The two side plates (130) are symmetrically arranged about the lifting drive member (20); and / or The two side supports (320) are symmetrically arranged about the lifting drive member (20).

8. The jacking device of claim 4, wherein The jacking device further comprises: A limiting block (70) is arranged on the side of the top support (310) facing the bottom plate (110) support; A floating joint (60) is arranged at the driving end, and the pressure sensor (50) is arranged between the floating joint (60) and the support frame (30).

9. The jacking device according to claim 8, wherein The limiting blocks (70) are arranged in pairs, and the two limiting blocks (70) arranged in pairs are symmetrically arranged about the driving end, the two limiting blocks (70) arranged in pairs form a limiting space, the pressure sensor (50) is arranged inside the limiting space, and at least part of the floating joint (60) is arranged inside the limiting space.

10. A battery manufacturing apparatus, characterized by comprising: The jacking device according to any one of claims 1 to 9. The jacking device according to any one of claims 1 to 9.

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