Novel battery helium detection equipment for battery shell detection

Abstract

The utility model discloses novel battery helium detection equipment for battery shell detection, which comprises a shell, a detection structure and a machine base, the machine base is fixedly connected with the shell, the detection structure is arranged between the shell and the machine base, the detection structure comprises a vacuum pipeline, an air cylinder, a helium detector, a lifting butt joint seat, a main body cavity and a product cavity, the air cylinder is arranged on the vacuum pipeline, and the helium detector is arranged on the air cylinder. The air cylinder controls the main body cavity to move downwards for butt joint, the lifting butt joint seat changes the position of the product cavity through stretching and retracting, so that the main body cavity and the product cavity are in butt joint, the bottom of the vacuum pipeline communicates with a helium detector, the lifting butt joint seat comprises a track plate, a limiting rod, a lead screw, a regulation and control mechanism and a motor, the motor is in driving connection with the lead screw, and the lead screw rotates in a limited mode through the track plate. The other side of the track plate is further fixedly connected with a limiting rod, and the regulation and control mechanism is driven by the lead screw to slide in a limiting mode. The utility model relates to a novel battery helium detection device for detecting a battery shell, which realizes the purpose of detecting the battery shell through the structural arrangement.

Description

Technical Field

[0001] The utility model relates to the technical field of battery shell detection equipment, in particular to a new type of battery helium detection equipment for battery shell detection. Background Art

[0002] The new battery helium inspection equipment for battery shell testing is aimed at similar battery shell anti-leakage test experimental equipment. In the process of completing the overall sealing of the battery, it plays a role in checking the tiny air leakage after battery welding and assembly, and can more accurately screen products with qualified battery sealing.

[0003] Helium testing is a testing method, which mainly involves evacuating the workpiece to be tested and then filling it with helium of a certain pressure. The outside of the workpiece to be tested is a vacuum box with a certain vacuum requirement. The vacuum box is connected to a helium mass spectrometer leak detector to detect the airtightness of the workpiece to be tested.

[0004] The main methods of helium detection include the spray method, the suction gun method, the helium hood method, the back pressure method, etc. Different methods have different characteristics. You can choose the appropriate method for detection according to specific needs.

[0005] In addition, helium mass spectrometer leak detectors are usually used for helium detection. The principle is based on the low permeability and high sensitivity of helium, and the leak rate is determined by detecting the presence of helium.

[0006] In general, helium detection has the characteristics of locating leaks, high sensitivity, and easy operation, and is widely used in airtightness detection of various sealing systems.

[0007] There are many leak rate detection methods on the market, including back pressure method, overall sniffing method, helium spray method, local sniffing method and box vacuum method. This product adopts the box vacuum method, and the overall leak rate can be controlled to 10-12mbar.l / s. The box vacuum method is more convenient for automatic line generation, but the box vacuum method mostly adopts the external spray internal inspection method, that is, a sealed cavity is created inside and outside the workpiece, and then the two sealed cavities are evacuated, and helium is filled through the external cavity of the workpiece. The leak rate of the test product is measured from the inside of the workpiece through a helium leak detector.

[0008] However, stainless steel fasteners currently have the following problems: the outer cavity is generally larger than the workpiece, which increases the cost of helium, and the area for cleaning helium increases, thereby increasing the residual helium and affecting the detection accuracy, which needs to be improved. Utility Model Content

[0009] The purpose of the utility model is to provide a new type of battery helium inspection equipment for battery shell inspection to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of battery helium inspection equipment for battery shell inspection, comprising a shell, a detection structure and a base, the shell is fixedly connected to the base, and the detection structure is installed between the shell and the base;

[0011] The detection structure includes a vacuum pipeline, a cylinder, a helium detector, a lifting docking seat, a main cavity and a product cavity. The vacuum pipeline is provided with a cylinder, and the cylinder controls the main cavity to move downward for docking. The lifting docking seat changes the position of the product cavity by telescoping, so that the main cavity and the product cavity are docked, and the bottom of the vacuum pipeline is connected and provided with a helium detector.

[0012] Specifically, the lifting docking seat includes a track plate, a limit rod, a screw rod, a regulating mechanism and a motor. The motor is driven and connected to a screw rod, and the screw rod is limited and rotated by the track plate. The other side of the track plate is also fixedly connected to the limit rod, and the regulating mechanism performs limited sliding under the drive of the screw rod.

[0013] Specifically, the regulating mechanism includes a lifting control plate, a hinge shaft, a flip plate and a hydraulic control rod, and the side end of the lifting control plate is hinged with a flip plate through the hinge shaft.

[0014] Specifically, a hydraulic control rod is hingedly provided on the flip plate, and the top of the hydraulic control rod is hingedly provided with the lifting control plate.

[0015] Specifically, the hydraulic control rod changes the position of the flip plate by extending and retracting, so that the flip plate is flipped through the hinge shaft and the lifting control plate.

[0016] Specifically, the flip plate is adapted to fit the product cavity, and the product cavity is supported and moved by flipping the flip plate.

[0017] Specifically, the product cavity is connected to the main body cavity and can perform internal vacuum extraction.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The equipment includes upper and lower racks, intermediate transfer, lifting mechanism, vacuum pipeline (including vacuum helium detector), and two groups (a total of product positioning chambers. Process implementation method: After the product is positioned, it is transferred to the detection station and lifted into place by the lower lifting mechanism. The inner cavity is connected to the cylinder and pressed down into place. The main cavity and the product are evacuated separately, and helium is filled into the product. The helium detector detects the amount of helium leaked from the product through the pressure difference between the main cavity and the product cavity, and finally determines whether the product reaches the standard leakage value. The main cavity must be evacuated to below 30-50pa under negative pressure. During the detection process, the inside of the product must be evacuated to between 50-200pa under negative pressure. At this time, 0.1Mpa helium is filled and then the helium detector is used to detect the product leakage rate through the pressure difference on both sides and the leaked trace helium. The overall structure is filled inside and inspected outside, which is convenient and fast to test, reduces the amount of helium used, reduces the helium cleaning area, and increases the detection accuracy to a certain extent, which can meet customers' requirements for product air tightness experiments, testing and screening.

[0020] 2. By installing the lifting docking seat, the motor in the lifting docking seat can be driven to drive the screw rod to rotate and adjust on the track plate, and the screw rod is threadedly connected to the lifting control plate. Through the rotation of the screw rod, the overall control mechanism can be driven to move under the limit of the track plate to reach a suitable position. The hydraulic control rod can be extended and retracted to make the flip plate flip and adjust relative to the lifting control plate, so that the product cavity is supported and lifted by the flip plate, which is convenient for the docking of the main cavity and the product cavity and helps with the detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of the main structure of the utility model;

[0022] Figure 2 It is a plan view of the main body of the utility model;

[0023] Figure 3 It is a three-dimensional diagram of the detection structure of the utility model;

[0024] Figure 4 It is a plan view of the detection structure of the utility model;

[0025] Figure 5 This is a structural schematic diagram of the lifting docking seat of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the control mechanism of the utility model.

[0027] In the figure: 1-housing; 2-detection structure; 3-machine base; 4-vacuum pipeline; 5-cylinder; 6-helium detector; 7-lifting docking seat; 8-main body cavity; 9-product cavity; 10-track plate; 11-limiting rod; 12-screw rod; 13-regulating mechanism; 14-motor; 15-lifting control board; 16-articulated shaft; 17-flip plate; 18-hydraulic control rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] See also Figure 1-4 The utility model provides a technical solution: a new type of battery helium inspection equipment for battery shell inspection, comprising a shell 1, a detection structure 2 and a base 3, the shell 1 is fixedly connected to the base 3, and the detection structure 2 is installed between the shell 1 and the base 3;

[0031] The detection structure 2 includes a vacuum pipeline 4, a cylinder 5, a helium detector 6, a lifting docking seat 7, a main cavity 8 and a product cavity 9. The vacuum pipeline 4 is provided with a cylinder 5, and the cylinder 5 controls the main cavity 8 to move downward for docking. The lifting docking seat 7 changes the position of the product cavity 9 by telescoping, so that the main cavity 8 and the product cavity 9 are docked, and the bottom of the vacuum pipeline 4 is connected to a helium detector 6.

[0032] Working principle: When work is needed, the user will install the equipment combination. The shell 1 and the base 3 play a supporting and protective role and are used for positioning the detection structure 2. The vacuum pipeline 4 and the helium detector 6 in the detection structure 2 are connected. When detection is required, the product is transported to the product cavity 9, and then transmitted through the product cavity 9 to reach the appropriate position. At this time, the lifting docking seat 7 works to lift the product cavity 9. At the same time, the cylinder 5 also works to push the main cavity 8 downward, so that the main cavity 8 and the product cavity 9 are docked and limited. At this time, vacuum treatment is carried out, and the main cavity 8 and the product cavity 9 are evacuated to vacuum through the vacuum pipeline 4. After that, helium can be supplied in the product. At the same time, leakage is detected through the external pressure difference to complete the work.

[0033] Example 2

[0034] like Figure 5-6As shown, on the basis of the embodiment, the lifting docking seat 7 is improved, and the lifting docking seat 7 includes a track plate 10, a limit rod 11, a screw rod 12, an adjustment mechanism 13 and a motor 14. The motor 14 is driven and connected with the screw rod 12, and the screw rod 12 is limited and rotated by the track plate 10. The other side of the track plate 10 is also fixedly connected with the limit rod 11. The adjustment mechanism 13 is limited and slid under the drive of the screw rod 12. The motor 14 is driven to drive the screw rod 12 to rotate on the track plate 10, thereby changing the position of the adjustment mechanism 13. The adjustment mechanism 13 is limited and slid by the track plate 10 and the limit rod 11.

[0035] The regulating mechanism 13 includes a lifting control plate 15, a hinge shaft 16, a flip plate 17 and a hydraulic control rod 18. The side end of the lifting control plate 15 is hinged with a flip plate 17 through the hinge shaft 16. The hydraulic control rod 18 is telescopically adjusted to change the flip angle of the flip plate 17, so that the flip plate 17 rotates with the lifting control plate 15 through the hinge shaft 16, thereby lifting the product cavity 9 through the flip plate 17.

[0036] A hydraulic control rod 18 is hingedly provided on the flip plate 17, and the top of the hydraulic control rod 18 is hingedly arranged with the lifting control plate 15. The hydraulic control rod 18 changes the position of the flip plate 17 by extension and retraction, so that the flip plate 17 is flipped through the hinge shaft 16. The flip plate 17 is adapted to the product chamber 9. By flipping the flip plate 17, the product chamber 9 is supported and pushed, and the product chamber 9 is docked with the main chamber 8, and internal vacuum extraction can be performed.

[0037] When in use, the motor 14 is driven to drive the screw rod 12 to rotate on the track plate 10, thereby changing the position of the regulating mechanism 13. The regulating mechanism 13 slides through the track plate 10 and the limit rod 11. When the lifting control plate 15 reaches the specified position, the hydraulic control rod 18 is telescopically adjusted to change the flip angle of the flip plate 17, so that the flip plate 17 rotates with the lifting control plate 15 through the hinge shaft 16, thereby lifting the product cavity 9 through the flip plate 17.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of battery helium inspection equipment for battery shell inspection, comprising a shell (1), a detection structure (2) and a base (3), characterized in that: The base (3) is fixedly connected to a housing (1), and a detection structure (2) is installed between the housing (1) and the base (3); The detection structure (2) comprises a vacuum pipeline (4), a cylinder (5), a helium detector (6), a lifting docking seat (7), a main body cavity (8) and a product cavity (9); the vacuum pipeline (4) is provided with a cylinder (5); the cylinder (5) controls the main body cavity (8) to move downward for docking; the lifting docking seat (7) changes the position of the product cavity (9) by telescoping, so that the main body cavity (8) and the product cavity (9) are docked; and the bottom of the vacuum pipeline (4) is connected to a helium detector (6).

2. A new type of battery helium inspection equipment for battery shell inspection according to claim 1, characterized in that: The lifting docking seat (7) comprises a track plate (10), a limit rod (11), a screw rod (12), a regulating mechanism (13) and a motor (14); the motor (14) is drivingly connected to the screw rod (12), and the screw rod (12) is limited in rotation by the track plate (10); the other side of the track plate (10) is also fixedly connected to the limit rod (11); and the regulating mechanism (13) is limited in sliding under the drive of the screw rod (12).

3. A new type of battery helium inspection equipment for battery shell inspection according to claim 2, characterized in that: The regulating mechanism (13) comprises a lifting control plate (15), a hinge shaft (16), a flip plate (17) and a hydraulic control rod (18); the flip plate (17) is hingedly provided at the side end of the lifting control plate (15) via the hinge shaft (16).

4. A new type of battery helium inspection equipment for battery shell inspection according to claim 3, characterized in that: A hydraulic control rod (18) is hingedly provided on the flip plate (17), and the top of the hydraulic control rod (18) is hingedly provided on the lifting control plate (15).

5. A new type of battery helium inspection equipment for battery shell inspection according to claim 4, characterized in that: The hydraulic control rod (18) changes the position of the flip plate (17) by extending and retracting, so that the flip plate (17) flips through the hinge shaft (16) and the lifting control plate (15).

6. A new type of battery helium inspection equipment for battery shell inspection according to claim 5, characterized in that: The flip plate (17) is adapted to fit the product cavity (9), and the product cavity (9) is supported and moved by flipping the flip plate (17).

7. A new type of battery helium inspection equipment for battery shell inspection according to claim 6, characterized in that: The product chamber (9) is butt-jointed with the main chamber (8) and is capable of internal vacuum extraction.

Images