Integrated hydraulic machine special for press fitting of battery stack
By designing a dedicated hydraulic press for battery stack pressing that integrates servo-controlled solenoid valves and ball bearing struts, the problems of insufficient precision control and structural protection of hydraulic equipment have been solved, achieving rapid and accurate pressing and battery safety protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-10
AI Technical Summary
Existing hydraulic equipment for battery stack pressing cannot precisely control the switching between fast and slow hydraulic operations, and the lack of protective structures makes the batteries prone to damage during the pressing process.
A dedicated integrated hydraulic press for battery stack pressing was designed, which integrates components such as servo-controlled solenoid valves, stepper motors, lead screws, and ball bearing struts to achieve fast and precise pressing control. It also prevents oil leakage from the cylinder and protects the battery through sealing plates and oil baffles.
It enables rapid and precise control of hydraulic operations, improves work efficiency, prevents battery damage during pressing, and ensures processing safety.
Smart Images

Figure CN223981433U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery press equipment technical field, concretely is the special integrated hydraulic machine of battery electric pile press. BACKGROUND
[0002] Battery electric pile press hydraulic machine is the equipment specially designed for fuel cell electric pile assembly, through accurate control press force and displacement, ensure the efficient paste of membrane electrode and bipolar plate etc. core component, guarantee the uniformity and sealing of electrochemical reaction interface. The equipment integrates pressure sensor, displacement sensor and PLC control system, can real -time monitoring press parameter and storage data, support process traceability and quality control.
[0003] The prior art has the following deficiencies: the existing battery electric pile press hydraulic equipment can only perform hydraulic pressure on the battery, and the conveying step of the battery needs to be assisted by other structures, and the hydraulic operation cannot be accurately controlled, and the switching pressure is unstable; the battery lacks a protection structure during the press process, and the battery will be damaged if the hydraulic structure slips. UTILITY MODEL CONTENT
[0004] In view of the deficiencies of the prior art, the utility model provides a special integrated hydraulic machine for battery electric pile press, which solves the problems of slow and inaccurate control of the hydraulic process and lack of protection structure for battery press.
[0005] To achieve the above object, the utility model provides the following technical scheme: a special integrated hydraulic machine for battery electric pile press, comprising a workbench, a control box and a control panel, the control box is arranged on one side of the workbench, and the control panel is arranged on the side end of the control box.
[0006] The upper beam is provided above the workbench, the oil cylinder is arranged at the top of the upper beam, the servo control electromagnetic valve is arranged on the same side end surface of the upper beam, and the moving platform is arranged on the side end of the workbench.
[0007] The moving platform further comprises a bearing rod, a roller and a pulley, the bearing rod is movably connected to the bottom side end of the moving platform, the roller is sleeved on the periphery of the bearing rod, and the pulley is movably connected to the top of the moving platform.
[0008] As a preferred technical scheme of the utility model, the upper beam further comprises a limiting rod, a movable beam, a hydraulic column, a sealing plate and an oil baffle, the limiting rod penetrates through the four corners of the upper beam and is movably connected therewith, and the movable beam is also penetrated by the limiting rod and is slidably connected therewith.
[0009] As a preferred embodiment of this utility model, the hydraulic column is movably connected to the bottom of the upper beam, the sealing plate is fixedly installed on the top of the upper beam and fully covers the top end face of the upper beam, and the oil baffle groove is opened at the upper end of the movable beam.
[0010] As a preferred technical solution of this utility model, the oil baffle groove has a structure with convex sides and concave center, and the convex side is at the same height as the highest point of the movable beam.
[0011] As a preferred technical solution of this utility model, the worktable further includes a stepper motor, a lead screw, a ball bearing support rod, and a sliding column. The stepper motor is fixedly installed inside the worktable, and the lead screw is movably connected to the stepper motor.
[0012] As a preferred embodiment of this utility model, the ball support rod is sleeved around the lead screw, the sliding column has a columnar structure, and a bearing structure is provided on the side end.
[0013] As a preferred technical solution of this utility model, the stepper motor, lead screw and ball support rod are all provided in four sets, and are evenly distributed on both sides of the worktable.
[0014] Compared with the prior art, this utility model provides a dedicated integrated hydraulic press for battery stack pressing:
[0015] This integrated hydraulic press for battery stack pressing consists of an upper beam, a movable beam, servo-controlled solenoid valves, a moving platform, ball bearing supports, and lead screws. During operation, the operator controls the stepper motor and servo-controlled solenoid valves via a control panel and control box. The battery is transported to the sliding column via pulleys on the top of the moving platform and positioned for pressing. The operator then controls the hydraulic cylinders and movable beam. Driven by the hydraulic cylinders and hydraulic column, the movable beam moves downwards and presses the battery upon contact. During this process, the stepper motor controls the lead screw to rotate, driving the ball bearing supports upwards. The four sets of ball bearing supports remain perpendicular to the top of the worktable until the pressing is complete, at which point the battery is moved out of the working area via the sliding column.
[0016] Through the above settings and procedures, the device achieves the following beneficial effects:
[0017] 1. During operation, rapid descent can be achieved through four sets of servo-controlled solenoid valves, saving time and improving work efficiency. Precise control of pressure and position is achieved during slow descent. Rapid and slow descent are precisely controlled in zones through customized valve assemblies, eliminating the previous problem of unstable pressure during rapid-slow switching;
[0018] 2. The combination of the oil baffle groove and the sealing plate can prevent oil leakage from the oil port on the oil cylinder to the processed product and cause contamination. In addition, the lead screw and ball support rod driven by the stepper motor can protect the battery and prevent the moving beam from slipping and causing product damage, thus improving product safety during processing. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the side end structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the bottom structure of this utility model;
[0022] Figure 4 This is a schematic diagram showing the installation position of the lead screw and ball support rod of this utility model.
[0023] In the diagram: 1. Workbench; 101. Stepper motor; 102. Lead screw; 103. Ball bearing strut; 104. Sliding column; 2. Control box; 3. Control panel; 4. Upper beam; 401. Limit rod; 402. Movable beam; 403. Hydraulic column; 404. Sealing plate; 405. Oil baffle groove; 5. Oil cylinder; 6. Servo control solenoid valve; 7. Moving platform; 701. Bearing rod; 702. Roller; 703. Pulley. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] In this implementation plan: a dedicated integrated hydraulic press for battery stack assembly includes a workbench 1, a control box 2, and a control panel 3. The control box 2 is located on one side of the workbench 1, and the control panel 3 is located on the side of the control box 2.
[0026] A top beam 4 is installed above the workbench 1, a hydraulic cylinder 5 is installed on the top of the top beam 4, a servo control solenoid valve 6 is installed on the same side end face of the top beam 4, and a moving platform 7 is installed on the side end of the workbench 1.
[0027] The mobile platform 7 also includes a bearing rod 701, a roller 702, and a pulley 703. The bearing rod 701 is movably connected to the bottom side of the mobile platform 7, the roller 702 is sleeved around the bearing rod 701, and the pulley 703 is movably connected to the top of the mobile platform 7.
[0028] In this embodiment, the upper beam 4 also includes a limiting rod 401, a movable beam 402, a hydraulic column 403, a sealing plate 404, and an oil baffle groove 405. The limiting rod 401 passes through the four corners of the upper beam 4 and establishes a movable connection with them. The movable beam 402 is also passed through by the limiting rod 401 and establishes a sliding connection with it. The hydraulic column 403 is movably connected to the bottom of the upper beam 4. The sealing plate 404 is fixedly installed on the top of the upper beam 4 and fully covers the top end face of the upper beam 4. The oil baffle groove 405 is opened at the upper end of the movable beam 402.
[0029] Specifically, such as Figure 1 and Figure 2 As shown, the movable beam 402 is positioned by being pierced by the limiting rod 401, which ensures stable stroke during its up-and-down movement.
[0030] In this embodiment, the oil baffle groove 405 has a structure with raised edges and a recessed center, and the raised side is at the same height as the highest point of the movable beam 402; the worktable 1 also includes a stepper motor 101, a lead screw 102, a ball bearing support rod 103 and a sliding column 104. The stepper motor 101 is fixedly installed inside the worktable 1, and the lead screw 102 is movably connected to the stepper motor 101.
[0031] Specifically, such as Figure 3 and Figure 4 As shown, after the ball support rod 103 moves upward in linkage, its height exceeds the height of the pressed battery, which can prevent the self-slipping movable beam 402 from directly hitting the battery and causing serious damage.
[0032] In this embodiment, the ball support rod 103 is sleeved around the lead screw 102, the sliding column 104 has a columnar structure and a bearing structure is provided on the side end; four sets of stepper motor 101, lead screw 102 and ball support rod 103 are provided and are evenly distributed on both sides of the worktable 1.
[0033] The working principle and usage process of this utility model are as follows: When using this equipment, the operator controls the stepper motor 101 and the servo control solenoid valve 6 through the control panel 3 and control box 2. The battery is transported to the sliding column 104 via the pulley 703 on the top of the moving platform 7, and after the battery is in a suitable pressing position, the operator controls the hydraulic cylinder 5 and the movable beam 402 to operate. Driven by the hydraulic cylinder 5 and the hydraulic column 403, the movable beam 402 moves downwards and performs a pressing operation upon contact with the battery. During this process, the stepper motor 101 controls the lead screw 102 to rotate and drives the ball bearing support rods 103 to move upwards. The four sets of ball bearing support rods 103 remain perpendicular to the upper end of the worktable 1 until the pressing is completed and the battery is moved out of the working area via the sliding column 104.
[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A special integrated hydraulic machine for battery stack pressing, comprising a workbench (1), a control box (2) and a control panel (3), wherein the control box (2) is arranged on one side of the workbench (1), and the control panel (3) is arranged on the side end of the control box (2), characterized in that: an upper beam (4) is arranged above the workbench (1), an oil cylinder (5) is arranged on the top of the upper beam (4), a servo control electromagnetic valve (6) is arranged on the same side end surface of the upper beam (4), and a moving platform (7) is arranged on the side end of the workbench (1). The moving platform (7) further comprises a bearing rod (701), a roller (702) and a pulley (703), the bearing rod (701) is movably connected to the bottom side end of the moving platform (7), the roller (702) is sleeved on the periphery of the bearing rod (701), and the pulley (703) is movably connected to the top of the moving platform (7).
2. The integrated hydraulic press for pressing a battery stack according to claim 1, characterized by: The upper beam (4) further comprises a limiting rod (401), a movable beam (402), a hydraulic column (403), a sealing plate (404) and an oil baffle (405), the limiting rod (401) penetrates through the four corners of the upper beam (4) and is movably connected thereto, and the movable beam (402) is also penetrated by the limiting rod (401) and is slidably connected thereto.
3. The integrated hydraulic press for pressing a battery stack according to claim 2, characterized by: The hydraulic column (403) is movably connected to the bottom of the upper beam (4), the sealing plate (404) is fixedly installed on the top of the upper beam (4) and covers the top end surface of the upper beam (4), and the oil baffle (405) is arranged on the upper end of the movable beam (402).
4. The integrated hydraulic press for pressing a battery stack according to claim 2, wherein: The oil baffle (405) is in a structure of protruding around and recessing in the middle, and the protruding side is in the same height as the highest part of the movable beam (402).
5. The integrated hydraulic press for pressing a battery stack according to claim 1, wherein: The workbench (1) further comprises a stepping motor (101), a lead screw (102), a ball brace (103) and a sliding column (104), the stepping motor (101) is fixedly installed inside the workbench (1), and the lead screw (102) is movably connected to the stepping motor (101).
6. The integrated hydraulic press for pressing a battery stack according to claim 5, wherein: The ball brace (103) is sleeved on the periphery of the lead screw (102), and the sliding column (104) is in a columnar structure and is provided with a bearing structure on the side end.
7. The integrated hydraulic press for pressing a battery stack according to claim 5, wherein: The stepping motor (101), the lead screw (102) and the ball brace (103) are all arranged in four groups and are equally divided on both sides of the workbench (1).