Battery box cover detection tool compatible with detection tool and airtightness detection function

Abstract

The utility model provides a battery box cover detection tool compatible with a detection tool and an airtight detection function, which comprises a detection tool body and a first silica gel pad, the first silica gel pad is matched with a battery box cover in shape, a plurality of hand-pressing type quick clamps are arranged on the periphery of the first silica gel pad, and detection pins in one-to-one correspondence with the hand-pressing type quick clamps are arranged in an inner ring defined by the hand-pressing type quick clamps. A front panel and a second silica gel pad are arranged on the inner side of a detection pin on the front side of the detection tool body, a clamping cavity is formed between the front panel and the second silica gel pad, an air inlet is formed in the front panel, and the front panel is connected to air tightness detection equipment through an air pipe. The outer edge of the battery box cover is tightly pressed on the first silica gel pad through the hand pressing type quick clamp, so that sealing is realized; and the air tightness detection equipment is used for filling gas into the battery box cover and detecting the air tightness of the battery box cover. The tool can carry out position tolerance detection and air tightness detection at the same time, and is better in compatibility and universality.

Description

Technical Field

[0001] This utility model relates to the field of inspection tooling technology, and in particular to a battery box cover inspection tooling that is compatible with both inspection tooling and airtightness testing functions. Background Technology

[0002] The battery box cover is a crucial component of the battery box, its primary function being to seal and protect the internal components, ensuring the safe operation of the battery pack. Battery box covers are typically designed with a sealing structure to guarantee the internal airtightness of the battery box and prevent gas or liquid leakage. Their safety protection level needs to meet the IP67 standard sealing requirements. Therefore, airtightness testing equipment (such as an airtightness tester) is required to test its sealing performance. During the testing process, a matching testing fixture is used to press and fix the battery box cover around its perimeter during an inflation test. In addition to sealing performance, the external dimensions of the battery box cover also need to be checked to ensure its compatibility with other components of the battery box. Currently, airtightness testing and dimensional inspection are conducted separately using different fixtures, requiring multiple fixture fixation and disassembly, making the testing process quite cumbersome. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a battery box cover inspection tool that is compatible with both inspection tools and airtightness testing functions.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a battery box cover testing fixture that is compatible with both inspection and airtightness testing functions, including an inspection fixture body. A first silicone pad is provided on the top of the inspection fixture body. The outer edge of the first silicone pad is adapted to the shape of the battery box cover. Multiple hand-pressable quick clamps are provided circumferentially around the first silicone pad on the inspection fixture body. The inner circle formed by the hand-pressable quick clamps is provided with detection pins corresponding to the hand-pressable quick clamps. A front panel is provided inside the detection pins on the front side of the inspection fixture body. A second silicone pad is provided on the front side of the front panel. A clamping cavity is formed between the front panel and the second silicone pad. An air inlet is provided on the front panel. An air pipe is connected to the air inlet. The air pipe passes through the second silicone pad and is connected to an airtightness testing device at the other end. During testing, the battery box cover is placed on the first silicone pad, and the detection pins are close to the battery box cover. The external dimensions of the battery box cover are tested. The outer edge of the battery box cover is tightly pressed onto the first silicone pad by the hand-pressable quick clamps to achieve a seal. The airtightness testing device is used to fill the battery box cover with gas and test its airtightness.

[0005] Furthermore, the hand-operated quick clamp includes a base, a Y-shaped handle, a swing arm, a pull plate, a pressure rod, and a pressure head. The rear end of the swing arm is rotatably connected to the base via a second pivot. The Y-shaped portion at the lower end of the Y-shaped handle spans the swing arm, and the lower end of the Y-shaped portion is rotatably connected to the base via a first pivot. Two pull plates are respectively disposed on both sides of the swing arm and located within the Y-shaped portion. The lower end of the pull plate is hinged to the middle of the swing arm via a fourth pivot, and the upper end of the pull plate is hinged to the Y-shaped portion of the Y-shaped handle via a third pivot. The upper end of the pull plate can rotate relative to the Y-shaped handle around the third pivot, and the lower end of the pull plate can rotate relative to the swing arm around the fourth pivot. When the hand-operated quick clamp is in the clamped state, the Y-shaped handle is in the unloaded state. At this time, the third pivot, the fourth pivot, and the first pivot are aligned on the same straight line from top to bottom. A guide sleeve is provided on the end of the swing arm away from the second pivot, the pressure rod is disposed within the guide sleeve, and the pressure head is disposed at the lower end of the pressure rod.

[0006] Furthermore, the front sides of the pull plates on both sides are integrally connected by side plates. A stop arm is provided at the top of the side plate, and the upper end of the stop arm bends backward and extends into the Y-shaped portion of the Y-shaped handle, where it is engaged. The integral connection of the pull plate and the stop arm reduces the number of parts and assembly steps. Simultaneously, when the side plate is pressed, it directly adheres to the swing arm, limiting the movement of the Y-shaped handle and preventing excessive rotation that could generate excessive pressure and damage the edge of the battery box cover. When the Y-shaped handle is pressed down and then lifted, the stop arm engages within the Y-shaped portion, providing auxiliary force to the pull plate and preventing excessive pulling force from damaging it.

[0007] In order to fix the pressure rod and adjust its height, both ends of the pressure rod are threaded, and the pressure rod is locked in the guide sleeve by two nuts.

[0008] To minimize the space occupied by the tooling, the pressure head is positioned directly above the detection pin. Therefore, in the pressed state, to avoid the detection pin, the pressure head has a clearance hole adapted to fit the detection pin, allowing the detection pin to be inserted into the clearance hole. By hollowing out the pressure head to form the clearance hole, the clearance of the detection pin is achieved.

[0009] Furthermore, it also includes positioning blocks, of which there are multiple positioning blocks, arranged circumferentially on the fixture body.

[0010] Furthermore, for ease of placement, multiple support columns are provided at the bottom of the inspection fixture body.

[0011] The beneficial effects of this utility model are: the battery box cover inspection fixture provided by this utility model is compatible with both inspection tool and airtightness testing function, and can simultaneously perform position tolerance testing and airtightness testing, with better compatibility and versatility. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of the battery box cover testing fixture of this utility model.

[0014] Figure 2 This is a schematic diagram of a hand-operated quick-release clamp.

[0015] Figure 3 This is a schematic diagram of a hand-operated quick-release clamp.

[0016] Figure 4 This is a schematic diagram of the structure used for testing the battery box cover using this tooling.

[0017] In the diagram: 1. Inspection fixture body; 2. Hand-operated quick clamp; 2.1. Y-shaped handle; 2.2. Base; 2.3. Fin; 2.4. First rotating shaft; 2.5. Second rotating shaft; 2.6. Third rotating shaft; 2.7. Swing arm; 2.8. Pull plate; 2.9. Pressure rod; 2.10. Pressure head; 2.11. Fourth rotating shaft; 2.12. Stop arm; 3. Inspection pin; 4. Air tightness testing equipment; 5. Air pipe; 6. Second silicone pad; 7. First silicone pad; 8. Battery box cover; 9. Front panel; 10. Support column; 11. Positioning block. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components, orientations, and references (e.g., up, down, left, right, etc.) relevant to the present invention and are intended only to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0019] like Figure 1As shown, this utility model discloses a battery box cover testing fixture that integrates inspection and airtightness testing functions. It includes a fixture body 1, with a first silicone pad 7 on top. The outer edge of the first silicone pad 7 is adapted to the shape of the battery box cover 8. Multiple hand-operated quick-release clips 2 are circumferentially arranged around the fixture body 1 around the first silicone pad 7. A detection pin 3, corresponding to each hand-operated quick-release clip 2, is located within the inner circle formed by the hand-operated quick-release clips 2. A front panel 9 is located inside the detection pins 3 on the front side of the fixture body 1. A first detection pin 3 is located on the front side of the front panel 9. Two silicone pads 6, a clamping cavity is formed between the front panel 9 and the second silicone pad 6. The front panel 9 has an air inlet, and an air pipe 5 is connected to the air inlet. The air pipe 5 passes through the second silicone pad 6 and is connected to the airtightness testing device 4 at the other end. During testing, the battery box cover 8 is placed on the first silicone pad 7, and the testing pin 3 is close to the battery box cover 8. The external dimensions of the battery box cover 8 are tested. The outer edge of the battery box cover 8 is tightly pressed onto the first silicone pad 7 by a hand-pressed quick clamp 2 to achieve a seal. The airtightness testing device is used to fill the battery box cover 8 with gas and test its airtightness. It also includes positioning blocks 11, of which there are multiple positioning blocks 11, which are arranged circumferentially on the inspection fixture body 1. In this embodiment, both the fixture body 1 and the first silicone pad 7 are rectangular. Therefore, at least two positioning blocks 11 are provided on each side of the fixture body 1 to achieve positioning of one side of the battery box cover 8. The front panel 9 is rectangular in shape to match the side panel of the battery box cover 8, and a triangular support plate is provided on the side of the front panel 9 facing away from the second silicone pad 6 to support the front panel 9.

[0020] like Figure 2 and Figure 3As shown, the hand-operated quick clamp 2 includes a base 2.2, a Y-shaped handle 2.1, a swing arm 2.7, a pull plate 2.8, a pressure rod 2.9, and a pressure head 2.10. The rear end of the swing arm 2.7 is rotatably connected to the base 2.2 via a second rotating shaft 2.5. The base 2.2 is a U-shaped seat with a side opening, and fins 2.3 are provided on both sides of the bottom. The fins 2.3 have connecting holes to fix them to the inspection fixture body. The upper end of the Y-shaped handle 2.1 is a gripping part, and the lower end is a Y-shaped part. The Y-shaped part spans the swing arm 2.7, and the lower end of the Y-shaped part is rotatably connected to the base 2.2 via a first rotating shaft 2.4. The pull plates 2.8 are two, respectively located on both sides of the swing arm 2.7 and inside the Y-shaped part. The lower end of the pull plate 2.8 is hinged to the middle of the swing arm 2.7 via a fourth rotating shaft 2.11. The upper end of plate 2.8 is hinged to the Y-shaped part of Y-shaped handle 2.1 via the third pivot 2.6. The upper end of plate 2.8 can rotate relative to Y-shaped handle 2.1 around the third pivot 2.6, and the lower end of plate 2.8 can rotate relative to swing arm 2.7 around the fourth pivot 2.11. When the hand-operated quick clamp 2 is in the clamping state, Y-shaped handle 2.1 is in the deactivated state. At this time, the third pivot 2.6, the fourth pivot 2.11, and the first pivot 2.4 are aligned on the same straight line from top to bottom. A guide sleeve is provided on the end of swing arm 2.7 away from the second pivot 2.5. The pressure rod 2.9 is located inside the guide sleeve. Both ends of the pressure rod 2.9 are threaded. The pressure rod 2.9 is locked inside the guide sleeve by two nuts. The pressure head 2.10 is located at the lower end of the pressure rod 2.9. The front sides of the pull plates 2.8 on both sides are integrally connected by side plates. A stop arm 2.12 is provided at the top of the side plate. The upper end of the stop arm 2.12 bends backward and extends into the Y-shaped part of the Y-shaped handle 2.1, where it is engaged. The pressure head 2.10 has a socket adapted to the detection pin 3, which can be inserted into the socket. Multiple support columns 10 are provided below the fixture body 1. In this embodiment, there are four support columns 10, respectively located at the four corners of the fixture body 1.

[0021] Working principle:

[0022] This fixture has both positional tolerance detection and airtightness detection functions. The detection process is as follows:

[0023] Function 1: Position tolerance detection

[0024] Position tolerance testing can be performed without using the hand-operated quick clamps 2. During testing, all the hand-operated quick clamps 2 are pressed down to raise the pressure head 2.10. Then, the battery box cover 8 is placed in the space enclosed by the detection pins 3, so that the edge of the battery box cover 8 is close to the detection pins 3. Then, the maximum and minimum values ​​of the distance between the edge of the battery box cover 8 and the detection pins 3 are measured, the position tolerance is calculated, and it is determined whether the value meets the design requirements, thereby realizing the position tolerance testing of the battery box cover 8.

[0025] Function 2: Air tightness test

[0026] like Figure 4 As shown, when performing an airtightness test, the battery box cover 8 is first placed on the first silicone pad 7. The front side of the battery box cover 8 is clamped in the clamping cavity between the front panel 9 and the second silicone pad 6. The hand-operated quick clamp 2 is pushed up so that the pressure head 2.10 is pressed down into place. At this time, the detection pin 3 is inserted into the clearance groove. Then, the front panel 9 fixture is fixed to the fixture body 1 with screws. The edges are sealed as a whole by the sealing strip. Gas is injected into the battery box cover 8 to generate air pressure. Then, the change in air pressure is detected by the airtightness testing device 4, thereby achieving the airtightness test.

[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A battery box cover detection tool compatible with a detection tool and airtight detection function, characterized in that: The utility model provides a battery box cover detection device, including the detection device body, the upper of detection device body is equipped with the first silica gel pad, the outer edge shape of first silica gel pad is with battery box cover shape adaptation, the detection device body is equipped with a plurality of hand pressure type quick clamps along the circumference on the four around of first silica gel pad, the inner circle surrounded by hand pressure type quick clamps is equipped with detection pin corresponding with hand pressure type quick clamps, the detection pin inboard of detection device body front side is equipped with front panel, the front side of front panel is equipped with second silica gel pad, and the front panel and second silica gel pad form clamping cavity between, and front panel is equipped with air inlet, and air pipe is connected on air inlet, and air pipe is connected to air tightness detection equipment through second silica gel pad another end, when detecting, battery box cover is placed on first silica gel pad, and detection pin is in close contact with battery box cover, and the contour size of battery box cover is detected, and the outer edge of battery box cover is tightly pressed on first silica gel pad through hand pressure type quick clamps, and sealing is realized, and air tightness detection equipment is used to fill gas in battery box cover and detects its air tightness.

2. The battery cover detection tooling with the function of detecting the tooling and the air tightness according to claim 1, characterized in that: The hand pressure type quick clamp includes a base, a Y-shaped handle, a swing arm, a pull plate, a pressing rod and a pressing head. The rear end of the swing arm is rotatably connected to the base through a second pivot. The Y-shaped part of the lower end of the Y-shaped handle spans the swing arm, and the lower end of the Y-shaped part is rotatably connected to the base through a first pivot. The pull plate is provided on both sides of the swing arm and located in the Y-shaped part. The lower end of the pull plate is hingedly connected to the middle part of the swing arm through a fourth pivot. The upper end of the pull plate is hingedly connected to the Y-shaped part of the Y-shaped handle through a third pivot. The upper end of the pull plate can rotate relative to the Y-shaped handle about the third pivot. The lower end of the pull plate can rotate relative to the swing arm about the fourth pivot. A guide sleeve is arranged on the end of the swing arm away from the second pivot. The pressing rod is arranged in the guide sleeve. The pressing head is arranged at the lower end of the pressing rod.

3. The battery cover detection tooling with the function of detecting the tooling and the air tightness according to claim 2, characterized in that: The front sides of the pull plates on both sides are integrally connected through side plates. The top of the side plate is provided with a blocking arm. The upper end of the blocking arm is bent backward to extend into the Y-shaped part of the Y-shaped handle and is clamped in the Y-shaped part.

4. The battery cover detection tooling with the function of detecting the tooling and the air tightness according to claim 2, characterized in that: The upper and lower ends of the pressing rod are both provided with threads. The pressing rod is locked in the guide sleeve through two nuts.

5. The battery cover detection tooling with the function of detecting the tooling and the air tightness according to claim 2, characterized in that: The pressing head is provided with a clearance hole matched with the detection pin. The detection pin can be inserted into the clearance hole.

6. The battery cover detection tool with the function of detecting the tool and the air tightness according to claim 1, characterized in that: The utility model also includes positioning blocks. The positioning blocks are provided on the detection device body in a circumferential direction.

7. The battery cover detection tool with the function of detecting the tool and the air tightness according to claim 1, characterized in that: The lower side of the detection device body is provided with a plurality of supporting columns.

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