Soft package battery leakage detection tool clamping device

Abstract

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a soft package battery leakage detection tool clamping device which comprises a two-way air cylinder, floating joints, an air cylinder connector, a sliding block connecting plate, a clamping block mounting plate, a clamping block, a guide rail and a sliding block. The outer ends of the floating connectors are in threaded connection with the air cylinder connectors respectively, the air cylinder connectors and the clamping block mounting plate are fixed to the sliding block connecting plate through bolts respectively, the sliding block connecting plate is fixed to the sliding block, the sliding block is in sliding connection with the guide rail, the guide rail is fixed to the guide rail mounting plate, and the clamping block mounting plate is fixed to the guide rail mounting plate. And the clamping block is fixed below the clamping block mounting plate. According to the mechanism, the original mechanism is greatly simplified, and abrasion of parts of a transmission mechanism is eliminated. And the stress condition of the transmission mechanism is optimized. The mechanism is more stable and reliable. And the replacement frequency of quick-wear parts is reduced, and the part machining cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a clamping device for leak detection of a soft package battery Background Art

[0002] In the field of soft package battery production, battery leak detection is a crucial link. Poor battery sealing will cause electrolyte leakage, affecting the service life of the battery. Moreover, the electrolyte is highly corrosive and may pose an accidental danger. During the leak detection process, the negative pressure in the leak detection cavity is very high, and the upper and lower cavities need to be clamped by a tooling. This clamping tooling will be subjected to a large pulling force. The original mechanism is that a cylinder drives a rack, the rack cooperates with a gear to move, and the gear then cooperates with the rack on the other side to move, realizing the synchronous movement of the clamping mechanisms on both sides. In this mechanism, the gear and rack are subjected to a large force and wear very seriously. Spare parts need to be replaced frequently, and the processing cost is relatively high. Content of the Utility Model

[0003] The purpose of the utility model is to provide a clamping device for leak detection of a soft package battery and its manufacturing method, so as to solve the technical problems existing in the prior art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A clamping device for leak detection of a soft package battery, including a two-way cylinder, a floating joint, a cylinder connection head, a slider connection plate, a clamping block mounting plate, a clamping block, a guide rail and a slider. The floating joints are respectively connected to the piston rods on both sides of the two-way cylinder, the outer ends of the floating joints are respectively threadedly connected with the cylinder connection heads, the cylinder connection heads and the clamping block mounting plates are respectively fixed on the slider connection plate through bolts, the slider connection plate is fixed on the slider, the slider is slidably connected with the guide rail, the guide rail is fixed on the guide rail mounting plate, and the clamping block is fixed below the clamping block mounting plate.

[0005] Preferably, a connection plate is fixed on the two-way cylinder.

[0006] Preferably, the clamping block is provided with a clamping groove.

[0007] The beneficial effect of the utility model is that this mechanism greatly simplifies the original mechanism and eliminates the wear of the transmission mechanism parts. The force condition of the transmission mechanism is optimized. This mechanism is more stable and reliable. The replacement frequency of vulnerable parts is reduced, and the part processing cost is lowered. Description of the Drawings

[0008] Figure 1 is a three-dimensional view of the utility model;

[0009] Figure 2 is a side view of the utility model;

[0010] Figure 3 This is the front view of the present utility model;

[0011] Figure 4 This is the top view of the present utility model. Specific embodiments

[0012] The following will describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings and preferred embodiments.

[0013] As Figures 1-4 shown, a clamping device for leak detection of a soft-pack battery includes a double-acting cylinder 1, a floating joint 2, a cylinder connector 3, a slider connecting plate 4, a clamping block mounting plate 5, a clamping block 6, a guide rail 7 and a slider. The piston rods on both sides of the double-acting cylinder are respectively connected with the floating joints. The floating joints can prevent assembly errors, reduce stress concentration, improve system flexibility, absorb vibration and shock, prevent damage to the cylinder piston rod, maintain alignment, and adapt to changes in the working environment.

[0014] The outer ends of the floating joints are respectively threadedly connected with the cylinder connectors. Specifically, the upper part of the cylinder connector is connected with the floating joint by threaded connection, which is convenient for disassembly and maintenance.

[0015] The cylinder connector and the clamping block mounting plate are respectively fixed on the slider connecting plate by bolts. Specifically, there are multiple threaded holes on the slider connecting plate. The lower part of the cylinder connector is fixed on the slider connecting plate with two screws, and the upper part of the clamping block mounting plate is fixed on the slider connecting plate with four screws.

[0016] The slider connecting plate is fixed on the slider, the slider is slidably connected with the guide rail, the guide rail is fixed on the guide rail mounting plate, the slider and the guide rail are slidably matched, and the clamping block is fixed below the clamping block mounting plate.

[0017] In order to facilitate the installation of this device on the equipment, a connecting plate is fixed on the double-acting cylinder. The connecting plate is installed on the equipment by bolts.

[0018] In order to facilitate the clamping of the cavity, the clamping block is provided with a clamping groove.

[0019] The battery is placed in the upper cavity 8 and the lower cavity 9. During the leak detection process, the cavity needs to be inflated, so the air pressure in the cavity is very high. At the same time, the sealing performance of the cavity also needs to be ensured. Under the strong air pressure, if the battery has poor sealing performance, liquid leakage will occur, which is regarded as a defective product and needs to be sorted out. The upper cavity 8 and the lower cavity 9 require two sets of clamping devices in the front and back to ensure their sealing performance. What this patent improves is the front clamping mechanism. The operating principle is that when performing leak detection, the double-acting cylinder drives the left and right clamping blocks to move inwards, so that the clamping grooves of the clamping blocks slide into the space between the upper and lower cavities, which is equivalent to a hard limit to restrict the up and down opening and closing of the cavity. After the leak detection is completed, the double-acting cylinder drives the left and right clamping blocks to expand outwards, the upper and lower cavities are opened, and the battery is taken out.

[0020] It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A clamping device for leak detection of soft-pack batteries, characterized in that: It includes a bidirectional cylinder, a floating joint, a cylinder connecting head, a slider connecting plate, a clamping block mounting plate, a clamping block, a guide rail and a slider. The piston rods on both sides of the bidirectional cylinder are respectively connected to the floating joints, the outer ends of the floating joints are respectively threadedly connected to the cylinder connecting heads, the cylinder connecting head and the clamping block mounting plate are respectively fixed to the slider connecting plate by bolts, the slider connecting plate is fixed to the slider, the slider is slidably connected to the guide rail, the guide rail is fixed to the guide rail mounting plate, and the clamping block is fixed below the clamping block mounting plate.

2. The soft pack battery leak detection fixture clamping device according to claim 1 is characterized in that: A connecting plate is fixed on the bidirectional cylinder.

3. The soft pack battery leak detection fixture clamping device according to claim 1, characterized in that: The clamping block is provided with a clamping groove.

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