Tool for assembling cylindrical battery cell into shell

Abstract

The utility model discloses a tool for assembling a cylindrical battery cell into a shell, which relates to the technical field of battery processing and production and comprises a fixed seat, and a battery cell pushing-in mechanism and a positioning mechanism are mounted on the fixed seat; the positioning mechanism comprises a battery cell guide part and a shell positioning part, the shell positioning part is fixedly connected to the fixed seat, and the battery cell guide part is arranged above the shell positioning part; the battery cell pushing-in mechanism moves in the vertical direction, and the central axis of the moving end of the battery cell pushing-in mechanism and the central axis of the positioning mechanism are located on the same straight line. The utility model has the advantages that the battery cell can be prevented from colliding or scraping with the open end of the battery shell when the battery cell enters the shell, and the yield of battery production is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing and production, in particular to a cylindrical battery core shell inserting tool. Background Art

[0002] During the battery formation process, there is a step that requires installing the cylindrical battery cell into the battery shell. This step is called the shelling process, also known as the cylindrical battery cell shaping process. The accuracy and effect of the battery cell shelling affect the performance of the battery pack.

[0003] Existing battery cell insertion tools position the battery casing within a slot, clamp the battery cell, and then move the battery casing and cell relative to each other to insert the battery into the casing. For example, patent publication CN110190324B discloses a battery cell insertion device that includes a casing tightening mechanism, a cell pushing mechanism, and a guide groove. The guide groove is used to position the battery casing, the casing tightening mechanism is used to tighten the battery casing, and the cell pushing mechanism is used to push or secure the cell.

[0004] However, when the battery cells are formed, there is a certain tolerance on their outer diameter, and there is also a certain coaxiality difference between the inner diameter of the carrier for transporting the battery cells and the outer diameter of the battery cells. These all lead to the battery cells and the open end of the battery shell being easily collided or scratched when the battery cells are shelled using the existing battery shell insertion tooling, resulting in a low yield rate in battery production. Utility Model Content

[0005] The technical problem to be solved by the present invention is how to prevent the battery core from colliding or scratching with the open end of the battery shell when the battery core is inserted into the shell.

[0006] The utility model solves the above-mentioned technical problems through the following technical means: a cylindrical battery cell shell insertion tool, including a fixed seat, on which a battery cell pushing mechanism and a positioning mechanism are installed; the positioning mechanism includes a battery cell guide component and a shell positioning component, the shell positioning component is fixedly connected to the fixed seat, and the battery cell guide component is arranged above the shell positioning component; the battery cell pushing mechanism moves in the up and down direction and the central axis of its moving end is located on the same straight line as the central axis of the positioning mechanism.

[0007] When in use, the battery shell is first placed in the shell positioning component, and the battery cell guide component is then sleeved on the outer periphery of the battery shell, and the battery cell is clamped above the upper end opening of the battery cell guide component; then the battery cell pushing mechanism is started, and the battery cell pushing mechanism is pressed down to push the battery cell into the battery shell along the battery cell guide component. The battery cell guide component guides the battery cell and the battery cell pushing mechanism. Before the battery cell enters the shell, it first contacts the upper end of the battery cell guide component. The battery cell guide component effectively ensures the coaxiality between the battery cell and the battery shell, realizes the automatic centering of the battery cell pushing mechanism, can avoid the battery cell and the open end of the battery shell from colliding or scratching when the battery cell is inserted into the shell, and improves the yield rate of battery production.

[0008] As an optimized technical solution, the battery cell guide component is a cylindrical structure, and a guide chamfer is provided around the inner wall of the upper opening of the battery cell guide component.

[0009] The guide chamfer plays a guiding role on the battery cell and the battery cell pushing mechanism, has a simple structure and good guiding effect.

[0010] As an optimized technical solution, the fixing seat includes a bottom plate and a side plate, and the side plate is fixedly connected to one side of the bottom plate; the shell positioning component includes a base and a cylindrical trough structure fixedly connected to the upper surface of the base, and the base is fixedly connected to the bottom plate.

[0011] The structure is simple and the battery housing can be positioned conveniently and quickly.

[0012] As an optimized technical solution, a height detection mechanism is installed on the battery cell pushing mechanism, and the height detection mechanism can detect the pressing height of the battery cell pushing mechanism.

[0013] When the downward pressure height value detected by the height detection mechanism exceeds the set range, the control system of the battery cell pushing mechanism makes a preset feedback action, thereby improving the assembly accuracy.

[0014] As an optimized technical solution, the height detection mechanism includes a red light sensor and a locator. The red light sensor moves with the battery cell pushing mechanism, and the locator is fixedly arranged directly below the red light sensor.

[0015] The red light sensor emits a red laser beam and works with the locator to calculate the position difference to achieve precise positioning.

[0016] As an optimized technical solution, the battery cell pushing mechanism includes a pressing head and a driving device, the driving device is installed on the fixing seat, and the pressing head is installed at the driving end of the driving device.

[0017] The driving device can drive the pressing head to rise and fall, and push the battery cell into the battery casing through the pressing head.

[0018] As an optimized technical solution, the lower end of the pressure head is a disc structure.

[0019] The disc-shaped pressure head has the function of pressing down the protruding diaphragm around the battery cell, which can effectively reduce the poor process of the battery cell in the later process caused by the protrusion of the diaphragm, and further improve the yield rate of battery production.

[0020] As an optimized technical solution, the battery cell pushing mechanism further includes a pressure sensor, and the pressure sensor is provided inside the pressure head.

[0021] When the pressure value detected by the pressure sensor exceeds the set range, the control system of the battery cell pushing mechanism performs a preset feedback action, thereby improving assembly accuracy.

[0022] As an optimized technical solution, the driving device adopts a screw motor.

[0023] The screw motor has the advantages of high efficiency, energy saving, low noise and long life.

[0024] As an optimized technical solution, the battery cell pushing mechanism also includes a slide rail and a slider. The slide rail is fixedly connected to the fixed seat and its length direction is parallel to the movement direction of the driving device. The slider slides in cooperation with the slide rail, and the pressure head is fixedly connected to the slider.

[0025] The slide rail and the slider guide the movement of the pressure head, making the movement of the pressure head more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a cylindrical battery core shell inserting tooling according to an embodiment of the present utility model.

[0027] Figure 2 It is a structural schematic diagram of the pressure head and pressure sensor of an embodiment of the utility model. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are 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 shall fall within the scope of protection of the present invention.

[0029] like Figure 1 、 Figure 2As shown, an embodiment of the utility model discloses a cylindrical battery cell shell insertion tool, including a fixing seat 1, on which a battery cell pushing mechanism 2 and a positioning mechanism 4 are installed, and a height detection mechanism 3 is installed on the battery cell pushing mechanism 2. The battery cell pushing mechanism 2 moves in the up and down directions and the central axis of its moving end is located on the same straight line as the central axis of the positioning mechanism 4. The height detection mechanism 3 can detect the downward pressing height of the battery cell pushing mechanism 2.

[0030] The fixing seat 1 includes a base plate 11 and a side plate 12. The side plate 12 is fixedly connected to one side of the base plate 11. The positioning mechanism 4 is installed on the base plate 11, and the battery cell pushing mechanism 2 is installed on the side plate 12. The structure is simple and easy to manufacture, which facilitates the installation of the positioning mechanism 4 and the battery cell pushing mechanism 2.

[0031] The battery cell pushing mechanism 2 includes a pressure head 21, a driving device 22, a pressure sensor 23, a slide rail 24 and a slider 25; the driving device 22 adopts a screw motor, the driving device 22 is installed on the side plate 12, and the pressure head 21 is installed at the driving end of the driving device 22. The driving device 22 can drive the pressure head 21 to rise and fall, and the battery cell is pushed into the battery shell through the pressure head 21; the lower end of the pressure head 21 is a disc structure, and the pressure head 21 with a disc structure has the function of pressing down the protruding diaphragm around the battery cell, which can effectively reduce the poor process of the battery cell in the later process caused by the protrusion of the diaphragm; a pressure sensor 23 is provided inside the pressure head 21. When the pressure When the pressure value detected by the sensor 23 exceeds the set range, the control system of the battery cell pushing mechanism 2 makes a preset feedback action. The feedback action includes outputting information used to prompt that the pressure value is unqualified, controlling the action of the driving device 22 accordingly according to the pressure value, etc., thereby improving the assembly accuracy; the slide rail 24 is fixedly connected to the side panel 12 and its length direction is parallel to the movement direction of the driving device 22, the slider 25 slides with the slide rail 24, the pressure head 21 and the height detection mechanism 3 are both fixedly connected to the slider 25, and the slide rail 24 and the slider 25 guide the movement of the pressure head 21, so that the movement of the pressure head 21 is more stable.

[0032] The height detection mechanism 3 is connected to the control system of the battery cell pushing mechanism 2. When the downward pressure height value detected by the height detection mechanism 3 exceeds the set range, the control system of the battery cell pushing mechanism 2 makes a preset feedback action. The feedback action includes outputting information for prompting that the downward pressure height value is unqualified, and controlling the action of the driving device 22 accordingly according to the downward pressure height value, thereby improving the assembly accuracy; the height detection mechanism 3 includes a red light sensor and a locator. The red light sensor moves with the driving device 22. The locator is arranged directly below the red light sensor and fixedly connected to the base plate 11. The red light sensor emits a red laser beam and cooperates with the locator to calculate the position difference to achieve precise positioning.

[0033] The positioning mechanism 4 includes a battery cell guide component 41 and a shell positioning component 42; the shell positioning component 42 includes a base and a cylindrical groove structure fixedly connected to the upper surface of the base, and the base is fixedly connected to the bottom plate 11; the battery cell guide component 41 is arranged above the shell positioning component 42, and the battery cell guide component 41 is a cylindrical structure. The inner wall of the upper end opening of the battery cell guide component 41 is provided with a guide chamfer; the battery shell can be positioned by the cylindrical groove structure of the shell positioning component 42, and the battery cell and the pressure head can be guided by the battery cell guide component 41 to ensure the coaxiality between the battery cell and the battery shell.

[0034] Working principle: When in use, first place the battery shell in the cylindrical groove structure of the shell positioning component 42, then put the battery core guide component 41 on the outer periphery of the battery shell, and clamp the battery core above the upper end opening of the battery core guide component 41; then start the driving device 22, and the driving device 22 drives the pressure head 21 to press down and push the battery core into the battery shell along the battery core guide component 41. The battery core guide component 41 guides the battery core and the pressure head 21. Before the battery core enters the shell, it first contacts the guide chamfer at the upper end of the battery core guide component 41, and the battery core guide component 41 effectively protects the battery core. The coaxiality between the battery cell and the battery shell is ensured, and the automatic centering of the pressure head 21 is realized, which can avoid the battery cell and the open end of the battery shell from colliding or scratching when the battery cell is put into the shell, thereby improving the yield rate of battery production; when the downward pressure height value detected by the red light sensor exceeds the set range or the pressure value detected by the pressure sensor exceeds the set range, the control system performs a preset feedback action, and the feedback action includes outputting information for prompting that the downward pressure height value or pressure value is unqualified, and controlling the action of the driving device 22 accordingly according to the value detected by the sensor.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cylindrical battery cell shell inserting tool, characterized by: It includes a fixing seat, on which a battery cell pushing mechanism and a positioning mechanism are installed; the positioning mechanism includes a battery cell guide component and a shell positioning component, the shell positioning component is fixedly connected to the fixing seat, and the battery cell guide component is arranged above the shell positioning component; the battery cell pushing mechanism moves in the up and down directions and the central axis of its moving end is on the same straight line as the central axis of the positioning mechanism.

2. The cylindrical battery core shell inserting tool according to claim 1, characterized in that: The battery core guide component is a cylindrical structure, and a guide chamfer is provided around the inner wall of the upper opening of the battery core guide component.

3. The cylindrical battery core shell inserting tool according to claim 1, characterized in that: The fixing seat includes a bottom plate and a side plate, and the side plate is fixedly connected to one side of the bottom plate; the shell positioning component includes a base and a cylindrical groove structure fixedly connected to the upper surface of the base, and the base is fixedly connected to the bottom plate.

4. The cylindrical battery core shell inserting tool according to claim 1, characterized in that: The battery cell pushing mechanism is provided with a height detection mechanism, and the height detection mechanism can detect the pressing height of the battery cell pushing mechanism.

5. The cylindrical battery core shell inserting tool according to claim 4, characterized in that: The height detection mechanism includes a red light sensor and a locator. The red light sensor moves with the battery core pushing mechanism, and the locator is fixedly arranged directly below the red light sensor.

6. The cylindrical battery core shell inserting tool according to claim 1, characterized in that: The battery core pushing mechanism includes a pressing head and a driving device, wherein the driving device is mounted on the fixing seat, and the pressing head is mounted on the driving end of the driving device.

7. The cylindrical battery core shell inserting tool according to claim 6, characterized in that: The lower end of the pressure head is a disc structure.

8. The cylindrical battery core shell inserting tool according to claim 6, characterized in that: The battery core pushing mechanism further includes a pressure sensor, and the pressure head is provided with a pressure sensor inside.

9. The cylindrical battery core shell inserting tool according to claim 6, characterized in that: The driving device adopts a screw motor.

10. The cylindrical battery core shell inserting tool according to claim 6, characterized in that: The battery cell pushing mechanism also includes a slide rail and a slider. The slide rail is fixedly connected to the fixing seat and its length direction is parallel to the movement direction of the driving device. The slider slides in cooperation with the slide rail, and the pressure head is fixedly connected to the slider.

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