Battery pack cross beam workpiece water vapor tightness test bench

Abstract

A battery pack crossbeam workpiece water gas tightness inspection test bench, including frame assembly, rotating workbench assembly, pressing assembly, drive assembly, safety grating, desk lamp, water tank, air pressure gauge, air pressure adjusting knob, emergency stop, start rocker and the like. Rotating workbench assembly, drive assembly, pressing assembly are all in the inside of frame assembly; Water tank is arranged below rotating workbench assembly; Frame assembly is provided with safety grating at the equipment entrance; Test bench is provided with illuminating lamp, frame assembly right side is provided with control panel, control panel left upper side is provided with air pressure gauge, control panel lower side is designed to have start rocker and emergency stop switch. The utility model discloses convenient operation can realize the water gas tightness detection of satisfying production requirement, and can prevent in the check operation work in the leakage of checking, misoperation, and can prevent battery pack crossbeam knock bumping.

Description

Technical Field

[0001] This utility model relates to the field of equipment maintenance technology, specifically to a water and air tightness inspection test bench for battery pack crossbeam workpieces, and more specifically to a working platform for inspecting the overall air tightness of battery pack crossbeam castings. Background Technology

[0002] The battery pack crossbeam is a key structural component in the battery system of new energy vehicles. Its importance is reflected in multiple dimensions, directly affecting the safety, reliability, performance, and even the overall vehicle operation safety of the battery pack. Therefore, the airtightness inspection of the battery pack crossbeam is particularly important. If the airtightness of the battery pack crossbeam fails, moisture and dust will enter the battery pack, affecting the insulation performance of the cells and potentially causing short circuits and thermal runaway. Therefore, to ensure the airtightness effectiveness of the battery pack crossbeam, a water and airtightness inspection test bench is needed. Summary of the Invention

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a water and air tightness inspection test bench for battery pack crossbeam workpieces.

[0004] According to this utility model, a water and air tightness inspection test bench for battery pack crossbeam workpieces is provided. The main body of the test bench includes four parts: a frame assembly, a rotating worktable assembly, a drive assembly, and a clamping assembly. In use, the workpiece is placed on the rotating worktable assembly. By turning the start lever, the clamping assembly clamps the workpiece and inflates it with air. Then, the drive assembly drives the rotating worktable assembly to rotate sequentially from a horizontal position, immersing the workpiece in a water tank. The workpiece is then rotated back for observation, thereby checking its air tightness. The components work together closely to achieve the water and air tightness inspection of the battery pack crossbeam workpiece.

[0005] The frame assembly is constructed entirely of aluminum alloy profiles, with the rotary table assembly, drive assembly, and clamping assembly all located inside the frame assembly. The water tank is situated beneath the rotary table assembly. A safety light curtain is installed at the equipment entrance of the frame assembly. Lighting is provided inside the test bench to allow operators to observe the airtightness of the workpiece surface. A control panel is located on the right side of the frame assembly, allowing for detailed equipment debugging and motion design of the test bench. A pressure gauge is located in the upper left corner of the control panel for adjusting the air pressure used for airtightness testing. Below the control panel are a start lever and an emergency stop switch; the start lever allows operators to operate the test bench for workpiece water and airtightness testing.

[0006] The rotary table assembly is the most important component within the test bench. It is used for rotating the workpiece after it is fixed and for filling the workpiece with compressed air. The front end of the rotary table assembly consists of a short shaft bearing seat and a short shaft. The short shaft bearing seat is fixed to the frame assembly, and one end of the short shaft is inserted into the bearing seat and secured with a set screw. The other end is fixed to the bottom of the workpiece mounting plate. The workpiece mounting plate is equipped with a left positioning block, a left positioning pin, a lower left positioning block, a left rear positioning block, an inflation positioning block, a pipe connector, a right rear positioning block, a lower right positioning block, and a right positioning pin. The inflation positioning block and the pressure head rubber form a sealed space. A pipe connector is connected to the bottom of the inflation positioning block for inflating the workpiece. The workpiece mounting plate is connected to the fixture mounting plate via two side uprights. The fixture mounting plate is equipped with limit posts, a cylinder support plate, a punch cylinder, and a long shaft. The limit posts are designed to prevent excessive rotation of the device. The cylinder support plate is used to mount the clamping cylinder of the clamping assembly. The punch cylinder is used to eject the punch and mark the qualified workpiece after it passes the water and air tightness test. The other end of the long shaft is connected to a long shaft bearing housing and secured with a long shaft set screw. The long shaft bearing housing is fixed to the frame assembly. A key is provided on a portion of the long shaft extending from the bearing housing, connecting the long shaft to the key. The driven gear is fixed to the long shaft with a driven gear set screw. A photoelectric switch baffle is installed on the driven gear to determine whether the rotary table assembly is in a horizontal position.

[0007] The drive assembly is used to drive the rotary table assembly to rotate. The drive assembly consists of a reducer, motor, support, motor mount, drive gear, drive gear set screw, and photoelectric switch mounting plate. The motor and reducer form the power source for the rotary table assembly. The reducer is connected to the motor mount, and the reducer and drive gear are connected via a shaft and secured with the drive gear set screw. The motor mount connects to the support, allowing the entire drive assembly to be fixed to the frame assembly, and enabling the drive gear on the drive assembly to mesh with the driven gear on the rotary table assembly. Photoelectric switch mounting plates are located on the left and right sides of the support for mounting appropriate photoelectric switches. The photoelectric switches cooperate with the photoelectric switch baffles on the driven gear.

[0008] The clamping assembly is used to clamp the workpiece on the rotary table assembly. The clamping assembly is fixed to the cylinder support plate of the rotary table assembly by clamping assembly fixing screws. A floating joint is connected to the right side of the clamping cylinder. When the clamping cylinder moves, the floating joint pushes the wedge block to the right, with the wedge block's inclined side facing downwards, passing through the fixture slider and contacting the sinker bearing. The sinker bearing is fixed in the fixture slider via a rotating shaft. The fixture slider is a movable block that can move up and down on the fixture body. A push rod is connected below the fixture slider, and the top of the push rod is a pressure head rubber. A spring guide post is fixed above the fixture slider, with the spring located between the spring guide post and a stop block, which is fixed to the fixture body.

[0009] The pressure head rubber in the clamping assembly of the test bench is made of polyurethane material for better sealing during water and air tightness testing. The motor in the drive assembly of the test bench is a servo motor to control the reciprocating rotation of the drive gear. The positioning blocks in the rotating worktable assembly of the test bench are all made of nylon material to prevent damage from impacts during workpiece placement. The test bench is equipped with a punch cylinder and a punch; after the water and air tightness test is completed, workpieces that pass the test are automatically marked. The test bench is equipped with lighting that meets inspection illumination requirements, and a safety light curtain is installed to prevent accidental activation by employees.

[0010] Therefore, the water and air tightness inspection test bench for battery pack crossbeam workpiece according to this utility model is easy to operate, can achieve water and air tightness testing that meets production requirements, can prevent omissions and misoperations during inspection operations, and can also prevent damage to the battery pack crossbeam from impacts. Attached Figure Description

[0011] Figure 1 This is an isometric side view of a water and air tightness inspection test bench for a battery pack crossbeam workpiece according to this utility model.

[0012] Figure 2 This is a top view of the water and air tightness inspection test bench for the battery pack crossbeam of this utility model.

[0013] Figure 3 This is a top view of the rotary table assembly in the water and air tightness inspection test bench for the battery pack crossbeam of this utility model.

[0014] Figure 4 This is a rear view of the rotary table assembly in the water and air tightness inspection test bench for the battery pack crossbeam of this utility model.

[0015] Figure 5 This is an isometric side view of the drive assembly in the water and air tightness inspection test bench for the battery pack crossbeam of this utility model.

[0016] Figure 6 This is a top view of the drive assembly in the water and air tightness inspection test bench for the battery pack crossbeam of this utility model.

[0017] Figure 7 This is a bottom view of the clamping assembly in the water and air tightness inspection test bench for the battery pack crossbeam of this utility model.

[0018] Figure 8 This is a right view of the clamping assembly in the water and air tightness inspection test bench for the battery pack crossbeam of this utility model.

[0019] The diagram shows: 1. Frame assembly, 1-1 Safety light curtain, 1-2 Lighting lamp, 1-3 Water tank, 1-4 Pressure gauge, 1-5 Emergency stop switch, 1-6 Start rocker, 1-7 Control panel; 2. Rotary table assembly, 2-1 Limit pin, 2-2 Cylinder support plate, 2-3 Left side positioning block, 2-4 Left positioning pin, 2-5 Lower left positioning block, 2-6 Rear left positioning block, 2-7 Short shaft, 2-8 Short shaft bearing seat, 2-9 Photoelectric switch baffle, 2-10 Key, 2-11 Driven gear, 2-12 Inflatable positioning block, 2-13 Pipe connector, 2-14 Rear right positioning block, 2-15 Lower right positioning block, 2-16 Right positioning pin, 2-17 Workpiece mounting plate, 2-18 Vertical plate, 2-19 Fixture mounting plate, 2-20 Long shaft, 2-21 2-22 Long shaft bearing housing, 2-23 punch cylinder, 2-24 short shaft set screw, 2-25 long shaft set screw, 2-26 driven gear set screw, 3 drive assembly, 3-1 motor base, 3-2 drive gear, 3-3 support, 3-4 photoelectric switch mounting plate, 3-5 photoelectric switch, 3-6 motor, 3-7 reducer, 3-8 drive gear set screw, 4 clamping assembly, 4-1 clamping cylinder, 4-2 clamping assembly fixing screw, 4-3 floating joint, 4-4 wedge, 4-5 fixture cover plate, 4-6 fixture body, 4-7 fixture slider, 4-8 spring guide post, 4-9 spring, 4-10 sinker bearing, 4-11 rotating shaft, 4-12 stop block, 4-13 push rod, 4-14 pressure head rubber. Detailed Implementation

[0020] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The exemplary embodiments described below and illustrated in the drawings are intended to teach the principles of the present invention, enabling those skilled in the art to implement and use the present invention in various environments and for various applications. Therefore, the scope of protection of the present invention is defined by the appended claims, and the exemplary embodiments are not intended, and should not be considered, a limiting description of the scope of protection of the present invention. Furthermore, for ease of description, the same elements in the drawings are indicated by the same or similar reference numerals, and the dimensions of the various parts shown are not necessarily drawn to actual scale. Regarding orientational descriptions, such as the longitudinal direction corresponding to the length of the main body, and the orientations or positional relationships indicated by up, down, left, right, top, bottom, etc., are all based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The technical features in the various embodiments described below can be freely combined to form more embodiments according to design needs.

[0021] The battery pack crossbeam workpiece water and air tightness inspection test bench consists of a frame assembly 1, safety light curtain 1-1, lighting lamp 1-2, water tank 1-3, air pressure gauge 1-4, emergency stop switch 1-5, start rocker 1-6, control panel 1-7, rotary worktable assembly 2, limit post 2-1, cylinder support plate 2-2, left side positioning block 2-3, left positioning pin 2-4, lower left positioning block 2-5, left rear positioning block 2-6, short shaft 2-7, short shaft bearing seat 2-8, photoelectric switch baffle 2-9, key 2-10, driven gear 2-11, inflation positioning block 2-12, pipe joint 2-13, right rear positioning block 2-14, lower right positioning block 2-15, right positioning pin 2-16, workpiece mounting plate 2-17, upright plate 2-18, fixture mounting plate 2-19, and long shaft 2-2. Composed of: 0. Long shaft bearing seat; 2-21. Punch cylinder; 2-22. Punch; 2-23. Short shaft set screw; 2-24. Long shaft set screw; 2-25. Driven gear set screw; 2-26. Drive assembly; 3. Motor seat; 3-1. Drive gear; 3-2. Support; 3-3. Photoelectric switch mounting plate; 3-4. Photoelectric switch; 3-5. Motor; 3-6. Reducer; 3-7. Drive gear set screw; 3-8. Clamping assembly; 4. Clamping cylinder; 4-1. Clamping assembly fixing screw; 4-2. Floating joint; 4-3. Wedge; 4-4. Fixture cover plate; 4-5. Fixture body; 4-6. Fixture slider; 4-7. Spring guide post; 4-8. Spring; 4-9. Sinking bearing; 4-10. Rotating shaft; 4-11. Stop; 4-12. Push rod; 4-13. Pressure head rubber; etc.

[0022] The test bench frame assembly 1 is constructed entirely of aluminum alloy profiles. The rotary worktable assembly 2, drive assembly 3, and clamping assembly 4 are all located inside the frame assembly 1. A water tank 1-3 is positioned below the rotary worktable assembly 2. A safety light curtain 1-1 is installed at the equipment entrance of the frame assembly 1. If the safety light curtain 1-1 detects an employee entering the equipment entrance during operation, the equipment will immediately stop to prevent accidents. An internal lighting fixture 1-2 is installed inside the test bench to allow employees to observe the airtightness of the workpiece surface. A control panel 1-7 is located on the right side of the frame assembly 1, allowing for detailed equipment debugging and motion design of the test bench. A pressure gauge 1-4 is located in the upper left corner of the control panel 1-7 for adjusting the air pressure used for airtightness testing. Below the control panel 1-7 are a start lever 1-6 and an emergency stop switch 1-5. The start lever 1-6 is used by the employee to operate the test bench for workpiece water and airtightness testing.

[0023] The rotary table assembly 2 is the most important component within the test bench. It is used for rotating the workpiece after it is fixed and for filling the workpiece with compressed air. The front end of the rotary table assembly 2 consists of a short shaft bearing seat 2-8 and a short shaft 2-7. The short shaft bearing seat 2-8 is fixed to the frame assembly 1. One end of the short shaft 2-7 is inserted into the short shaft bearing seat 2-8 and fixed with a short shaft set screw 2-24. The other end is fixed to the bottom of the workpiece mounting plate 2-17. The workpiece mounting plate 2-17 is equipped with a left positioning block 2-3, a left positioning pin 2-4, a lower left positioning block 2-5, a left rear positioning block 2-6, an inflation positioning block 2-12, a pipe connector 2-13, a right rear positioning block 2-14, a lower right positioning block 2-15, and a right positioning pin 2-16. The positioning blocks and positioning pins are used to fix the battery pack crossbeam, preventing it from moving arbitrarily. The inflatable positioning block 2-12 and the pressure head rubber 4-14 form a sealed space. A pipe connector 2-13 is connected to the bottom of the inflatable positioning block 2-12 for inflating the inside of the workpiece. The workpiece mounting plate 2-17 is connected to the fixture mounting plate 2-19 via two side uprights 2-18. The fixture mounting plate 2-19 is equipped with a limit post 2-1, a cylinder support plate 2-2, a punch cylinder 2-22, and a long shaft 2-20. The limit post 2-1 is provided to prevent excessive rotation of the device. The cylinder support plate 2-2 is used to install the clamping cylinder 4-1 of the clamping assembly 4. The punch cylinder 2-22 is used to push out the punch 2-23 and mark the qualified workpiece after the workpiece passes the water and air tightness test. The other end of the long shaft 2-20 is fixedly connected to the long shaft bearing seat 2-21 and a long shaft set screw 2-25. The long shaft bearing seat 2-21 is fixed to the frame assembly 1. A key 2-10 is provided on a portion of the long shaft 2-20 extending from the long shaft bearing seat 2-21. The long shaft 2-20 and the key 2-10 are connected to a driven gear 2-11. The driven gear 2-11 is fixed to the long shaft 2-20 by a driven gear set screw 2-26. A photoelectric switch baffle 2-9 is provided on the driven gear 2-11 to determine whether the rotary table assembly 2 is in a horizontal position.

[0024] The drive assembly 3 drives the rotary table assembly 2 to rotate. The drive assembly 3 consists of a reducer 3-7, a motor 3-6, a support 3-3, a motor mount 3-1, a drive gear 3-2, a drive gear set screw 3-8, and a photoelectric switch mounting plate 3-4. The motor 3-6 and reducer 3-7 form the power source for the rotary table assembly 2. The reducer 3-7 is connected to the motor mount 3-1. The reducer 3-7 and drive gear 3-2 are connected via a shaft and secured with the drive gear set screw 3-8. The motor mount 3-1 connects to the support 3-3, allowing the drive assembly 3 to be fixed to the frame assembly 1 via the support 3-3. This also allows the drive gear 3-2 on the drive assembly 3 to mesh with the driven gear 2-11 on the rotary table assembly 2. Photoelectric switch mounting plates 3-4 are located on the left and right sides of the support 3-3 for mounting appropriate photoelectric switches 3-5. The photoelectric switch 3-5 cooperates with the photoelectric switch baffle 2-9 on the driven gear 2-11 to determine whether the rotary table assembly 2 has returned to the horizontal position.

[0025] The clamping assembly 4 is used to clamp the workpiece on the rotary table assembly 2. The clamping assembly 4 is fixed to the cylinder support plate 2-2 of the rotary table assembly 2 by the clamping assembly fixing screw 4-2. The right side of the clamping cylinder 4-1 is connected to the floating joint 4-3. When the clamping cylinder 4-1 moves, it relies on the floating joint 4-3 to push the wedge block 4-4 to the right. The wedge block 4-4 has its inclined side facing downward, passes through the clamping slider 4-7 and contacts the sinker bearing 4-10. The sinker bearing 4-10 is fixed in the clamping slider 4-7 by the rotating shaft 4-11. The clamping slider 4-7 is a movable block that can move up and down the clamping body 4-6. The bottom of the clamping slider 4-7 is connected to the push rod 4-13, and the top of the push rod 4-13 is a pressure head rubber 4-14. A spring guide post 4-8 is fixed above the clamping slider 4-7. The spring 4-9 is located between the spring guide post 4-8 and the stop block 4-12. The stop block 4-12 is fixed on the clamping body 4-6. When the wedge 4-4 moves to the right, it pushes the sinker bearing 4-10 to make the clamp slider 4-7 move downward until the pressure head rubber 4-14 at the lower end of the clamp slider 4-7 blocks the workpiece through hole. At this time, the spring guide post 4-8 fixed on the clamp slider 4-7 also moves downward to compress the internal spring 4-9. After the work is completed, the wedge 4-4 retracts, and the spring 4-9 pushes the clamp slider 4-7 back to its original position.

[0026] In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified. Unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Although the present invention has been described with reference to various specific embodiments, it should be understood that modifications can be made within the spirit and scope of the described inventive concept. Therefore, it is intended that the present invention be limited to the described embodiments but will have the full scope defined by the language of the appended claims.

Claims

1. A test bench for inspecting the water and air tightness of a battery pack crossbeam, characterized in that, It consists of a frame assembly, a rotary table assembly, a drive assembly, and a clamping assembly; the rotary table assembly, drive assembly, and clamping assembly are all located inside the frame assembly; the water tank is located below the rotary table assembly; the frame assembly is equipped with a safety light curtain at the equipment entrance; lighting is installed inside the test bench; a control panel is located on the right side of the frame assembly; a pressure gauge is located on the upper left of the control panel; and a start rocker and an emergency stop switch are located below the control panel.

2. The battery pack crossbeam workpiece water and air tightness inspection test bench according to claim 1, characterized in that, The rotary table assembly rotates after fixing the workpiece and fills it with compressed air. The front end of the rotary table assembly consists of a short shaft bearing seat and a short shaft. The short shaft bearing seat is fixed to the frame assembly, and one end of the short shaft is inserted into the bearing seat, while the other end is fixed to the bottom of the workpiece mounting plate. The workpiece mounting plate is equipped with a left positioning block, a left positioning pin, a lower left positioning block, a left rear positioning block, an inflation positioning block, a pipe connector, a right rear positioning block, a lower right positioning block, and a right positioning pin. The inflation positioning block and the pressure head rubber form a sealed space, and a pipe connector is connected to the bottom of the inflation positioning block. The workpiece mounting plate passes through... The two upright plates are connected to the fixture mounting plate, which is equipped with limit posts, cylinder support plates, punch cylinders, and long shafts. The cylinder support plate is equipped with the clamping cylinder of the clamping assembly. The punch cylinder pushes out the punch to mark the qualified workpiece. The other end of the long shaft is fixedly connected to the machine frame assembly through a long shaft bearing seat and with a long shaft set screw. The long shaft bearing seat is fixed to the machine frame assembly. A key is provided on a part of the long shaft extending through the long shaft bearing seat. The long shaft and the key are connected to the driven gear. The driven gear is fixed to the long shaft with a driven gear set screw. A photoelectric switch baffle is provided on the driven gear.

3. The battery pack crossbeam workpiece water and air tightness inspection test bench according to claim 1, characterized in that, The drive assembly drives the rotary table assembly to rotate. The drive assembly consists of a reducer, a motor, a support, a motor mount, a drive gear, a drive gear set screw, and a photoelectric switch mounting plate. The motor and reducer form the power source for the rotary table assembly. The reducer is connected to the motor mount, and the reducer and drive gear are connected via a shaft and secured with the drive gear set screw. The entire drive assembly is fixed to the frame assembly via the motor mount and support, allowing the drive gear on the drive assembly to mesh with the driven gear on the rotary table assembly. Photoelectric switch mounting plates are located on the left and right sides of the support, where appropriate photoelectric switches are installed. The photoelectric switches cooperate with the photoelectric switch baffles on the driven gear.

4. The battery pack crossbeam workpiece water and air tightness inspection test bench according to claim 1, characterized in that, The clamping assembly clamps the workpiece on the rotary table assembly; the clamping assembly is fixed to the cylinder support plate of the rotary table assembly by clamping assembly fixing screws; a floating joint is connected to the right side of the clamping cylinder, and when the clamping cylinder moves, it relies on the floating joint to push the wedge block to the right, with the wedge block's inclined side facing downwards, passing through the fixture slider and contacting the sinking bearing; the sinking bearing is fixed in the fixture slider by a rotating shaft, and the fixture slider is a movable block that can move up and down the fixture body, with a push rod connected below the fixture slider, and the top of the push rod is a pressure head rubber; a spring guide post is fixed above the fixture slider, with the spring located between the spring guide post and the stop block, and the stop block is fixed on the fixture body.

5. The battery pack crossbeam workpiece water and air tightness inspection test bench according to claim 1, characterized in that, A pressure gauge is located in the upper left corner of the control panel.

6. The battery pack crossbeam workpiece water and air tightness inspection test bench according to claim 1, characterized in that, Use the start lever to start the device.

7. The battery pack crossbeam workpiece water and air tightness inspection test bench according to claim 1, characterized in that, An emergency stop switch is located next to the start lever.

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