Flatness detection jig for cover plate assembly

Abstract

The utility model provides a cover plate assembly planeness detection jig, which relates to the cover plate detection device field, and comprises a box body, a guide rod, a clamping plate, a bolt rod and a bearing plate, the bottom of the box body is provided with the bearing plate, the guide rod is perpendicular to the bearing plate and is fixedly arranged on the top of the box body, the clamping plate is slidably arranged on the guide rod, and the cover plate is arranged between the clamping plate and the bearing plate. A bolt rod is arranged above the bearing plate and penetrates through the top of the box body, the cover plate is stably fixed through the threaded rod and a plurality of guide rods, the threaded rod can be unscrewed at any time, the position of the cover plate can be adjusted, an air cylinder is not needed, and the potential safety hazard that a hand is pressed by the air cylinder does not exist.

Description

Technical Field

[0001] This utility model relates to the technical field of cover plate testing devices, specifically to a cover plate assembly flatness testing fixture. Background Technology

[0002] Lithium battery products with good cover plate flatness can improve the sealing and stability of the battery, ensuring its service life and safety. Therefore, flatness is one of the important standards for inspecting the quality of lithium battery cover plate components. Before the cover plate is tested, it needs to be fixed. For the fixing of the cover plate, please refer to the cover plate flatness testing mechanism in announcement number CN 206420451U. The inner side of the L-shaped support plate is provided with a slide rail. The slide rail is provided with a slide rail connecting block that can slide up and down. The cylinder is set above the cylinder fixing block. The cylinder passes through the cylinder fixing block and is connected to the slide rail connecting block through the cylinder connecting rod. The slide rail connecting block presses down on the cover plate flatness testing horizontal block.

[0003] While the above solution can ensure stable fixation of the cover plate before inspection, it has the following problems during use:

[0004] Multiple cover plates need to be inspected within a construction period. A cylinder is used to drive the connecting block to press down the cover plate. After the operator presses the start button of the cylinder, the connecting block moves down. If the cover plate is found to be misaligned at this time, the operator will reach out to adjust the position of the cover plate. The operator's attention will decrease during long-term inspection. Although the cylinder moves down slowly, there is still a safety hazard of the cylinder pressing on the hand. Utility Model Content

[0005] To achieve the above objectives, one or more embodiments of this utility model provide the following technical solutions.

[0006] This utility model proposes a flatness testing fixture for a cover plate assembly, including a housing, a guide rod, a clamping plate, a bolt rod, and a receiving plate. The receiving plate is provided at the bottom of the housing, and the guide rod is fixedly installed perpendicular to the receiving plate and located at the top of the housing. The clamping plate is slidably arranged on the guide rod, and the cover plate is arranged between the clamping plate and the receiving plate. The bolt rod is provided above the receiving plate and extends through the top of the housing.

[0007] Further configuration: the box body is hollow, with several rectangular slots opened at the top of the box body and several rectangular slots opened on the side walls of the box body.

[0008] Further configuration involves the guide rod being a cylindrical rod, which is fixed to the inner side wall of the top of the housing by bolts.

[0009] Further configuration involves the clamping plate being a rectangular plate, with a length less than the length of the box body, and a gap being provided between the clamping plate and the inner wall of the box body.

[0010] Further configuration involves a threaded hole centered at the top of the housing, with a bolt rod inside the threaded hole, the end of which can contact the top of the clamping plate.

[0011] Further configuration: the length of the receiving plate is greater than the length of the clamping plate, the width of the receiving plate is greater than the width of the clamping plate, and the receiving plate is fixed to the bottom of the box with bolts.

[0012] A further configuration involves a slider mounted on a clamping plate, the slider having a circular hole, and the slider being fitted onto the guide rod through the circular hole.

[0013] Further configuration involves a hole diameter larger than the guide rod diameter, with a gap between the hole and the guide rod for the slider to move.

[0014] Further configuration involves at least two guide rods positioned on both sides of the threaded hole.

[0015] Further, the housing is made of stainless steel to ensure the overall strength of the fixture.

[0016] The beneficial effects of one or more of the above technical solutions:

[0017] When fixing the cover plate, move the clamping plate to make the slider slide along the guide rail. The slider drives the clamping plate to move vertically along the receiving plate. Then, place the cover plate on top of the receiving plate and adjust the position of the cover plate to ensure that the cover plate is centered on the receiving plate. At this time, the cover plate assembly is placed between the clamping plate and the receiving plate. Then, turn the threaded rod with a wrench to press the threaded rod against the cover plate to complete the fixing of the cover plate. The cover plate is fixed by the threaded rod. The operator can adjust the tightness of the threaded rod with a nut. The cover plate is stably fixed by the threaded rod and several guide rods. The threaded rod can be loosened and the position of the cover plate can be adjusted at any time. No cylinder is required. The cover plate is clamped and fixed by the threaded rod, and there is no safety hazard of the cylinder pressing on the hand. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is the front view of the present invention.

[0021] In the diagram, 1 is the housing; 11 is the rectangular groove; and 12 is the threaded hole.

[0022] 2 guide rods;

[0023] 3 clamping plates; 31 sliders;

[0024] 4. Bolt rod; 5. Receiving plate; 6. Bolt. Detailed Implementation

[0025] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0026] Reference Figure 1 and Figure 2 The system includes a housing 1, a guide rod 2, a clamping plate 3, a bolt rod 4, and a receiving plate 5. The receiving plate 5 is located at the bottom of the housing 1. The guide rod 2 is fixedly installed perpendicular to the receiving plate 5 and at the top of the housing 1. The clamping plate 3 slides on the guide rod 2. A cover plate is positioned between the clamping plate 3 and the receiving plate 5. The bolt rod 4 is located above the receiving plate 5 and extends through the top of the housing 1. The housing 1 is hollow. The bottom surface of the housing 1 must be level. The guide rod 2 is used to support the cover plate assembly and the sliding of the clamping plate 3. The guide rail must be level. The clamping plate 3 is used to fix the cover plate. Plate assembly; bolt rod 4 is used to fix clamping plate 3 and cover plate assembly. The surface of bolt rod 4 is threaded. Receiving plate 5 is used to cooperate with clamping plate 3 to fix cover plate assembly. All parts are fixed to each other with internal hex bolts 6. Clamping plate 3 can slide on guide rod 2 to facilitate the cover plate assembly to be placed between clamping plate 3 and receiving plate 5. After the cover plate assembly is pushed on the cover plate with bolt rod 4, it is prevented from loosening. This fixture is used to assist in the flatness detection to ensure that the top cover is on a horizontal plane. Whether it is qualified depends on the height gauge measurement value and the standard output by the research and development.

[0027] The box 1 is hollow. Several rectangular slots 2 are opened at the top of the box 1 and several rectangular slots 2 are opened on the side walls of the box 1. The box 1 is made of stainless steel to ensure strength. The use of stainless steel increases the overall weight of the box 1. Therefore, in order to reduce the weight of the box and facilitate its transfer, rectangular slots are opened on each side of the box.

[0028] The guide rod 2 is a cylindrical rod. The guide rod 2 is fixed to the inner side wall of the top of the box 1 by bolts 6. The parts are fixed to each other by hexagonal bolts. Specifically, the top of the box 1 and the top of the guide rod 2 are threaded holes. Hexagonal bolts are screwed into the threaded holes on the top of the box 1 and the threaded holes on the top of the guide rod 2 at the same time, so that the guide rod 2 is fixed on the box 1.

[0029] The clamping plate 3 is a rectangular plate, and the length of the clamping plate 3 is less than the length of the box 1. A gap is provided between the clamping plate 3 and the inner wall of the box 1 to provide space for the clamping plate to move. When the clamping plate 3 is moved, it is ensured that the clamping plate 3 can move along the height direction of the box 1.

[0030] A threaded hole 12 is opened in the center of the top of the box 1. A bolt rod 4 is installed in the threaded hole 12. The end of the threaded rod can contact the top of the clamping plate 3. By rotating the bolt rod 4, the thread on the side wall of the bolt rod 4 and the thread in the threaded hole 12 are engaged with each other. After the bolt rod 4 is screwed in, the end of the bolt rod 4 presses against the top of the clamping plate 3. Since the thread on the side wall of the bolt rod 4 and the thread in the threaded hole 12 have self-locking properties, the bolt rod 4 presses against the clamping plate 3, and the battery cover is clamped between the clamping plate 3 and the receiving plate 5.

[0031] The receiving plate 5 is fixed to the bottom of the box 1 by bolts 6. The length of the receiving plate 5 is greater than the length of the clamping plate 3, and the width of the receiving plate 5 is greater than the width of the clamping plate 3, so as to ensure that the receiving plate 5 can bear the pressure transmitted by the cover plate and the clamping plate 3. The width and length of the clamping plate 3 are greater than the width and length of the cover plate. When clamped, the clamping plate 3 completely covers the cover plate, ensuring that the pressure is evenly transmitted to the clamping plate 3.

[0032] The clamping plate 3 is equipped with a slider 31, which has a circular hole. The slider 31 is fitted onto the guide rod through the circular hole. The diameter of the circular hole is larger than the diameter of the guide rod. There is a gap between the circular hole and the guide rod for the slider 31 to move. When the clamping plate 3 is moved, the slider 31 slides along the guide rail. The slider 31 drives the clamping plate 3 to move vertically along the receiving plate 5.

[0033] There are at least two guide rods, and the number of guide rods is even. The guide rods are symmetrically arranged on both sides of the threaded hole 12. The guide rods are arranged on both sides of the threaded hole 12 to ensure that the pressure on both sides is always downward when the threaded rod 12 is screwed in, so as to ensure that the clamping plate 3 is evenly stressed and to avoid the phenomenon that the clamping plate 3 shifts to one side after the bolt rod 4 is pressed down.

[0034] Because the bottom of the box 1 is subjected to the pressure of the clamping plate 3, the top of the box 1 is subjected to the pressure of the bolt rod 4 during the screwing in process. The box 1 is prone to deformation due to the use of low strength materials. Therefore, in order to ensure the overall strength, the box 1 is made of stainless steel to prevent deformation during use.

[0035] The process of fixing the cover plate is as follows:

[0036] Each guide rail receiving plate 5 is fixed to the housing 1 by hex bolts 6. The guide rail is measured to ensure that the central axis of the guide rail is perpendicular to the clamping plate 3. The bottom surface of the housing 1 is measured to ensure the levelness of the bottom surface of the housing 1. Then, the clamping plate 3 is moved so that the slider 31 slides along the guide rail. The slider 31 drives the clamping plate 3 to move in the vertical direction of the receiving plate 5. Then, the cover plate is placed on top of the receiving plate 5. The position of the cover plate is adjusted to ensure that the cover plate is located in the center of the receiving plate 5. At this time, the cover plate assembly is placed between the clamping plate 3 and the receiving plate 5. Then, the threaded rod is turned with a wrench to push the threaded rod against the cover plate to complete the fixation of the cover plate.

[0037] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A flatness testing fixture for a cover plate assembly, comprising a housing, a guide rod, a clamping plate, a bolt rod, and a receiving plate. The receiving plate is provided at the bottom of the housing. The guide rod is fixedly installed perpendicular to the receiving plate and located at the top of the housing. The clamping plate is slidably mounted on the guide rod. The cover plate is positioned between the clamping plate and the receiving plate. The bolt rod is provided above the receiving plate and extends through the top of the housing.

2. The cover plate assembly flatness detection jig according to claim 1, wherein The box is hollow, with several rectangular slots on the top and side walls.

3. The cover plate assembly flatness detection jig according to claim 2, wherein The guide rod is a cylindrical rod, and it is fixed to the inner side wall of the top of the box by bolts.

4. The cover plate assembly flatness inspection tool of claim 1, wherein, The clamping plate is a rectangular plate, and its length is less than that of the box body. There is a gap between the clamping plate and the inner wall of the box body.

5. The cover plate assembly flatness detection jig according to claim 1, wherein A threaded hole is opened in the center of the top of the box, and a bolt rod is installed in the threaded hole. The end of the threaded rod can contact the top of the clamping plate.

6. The cover plate assembly flatness inspection tool of claim 1, wherein, The length of the receiving plate is greater than the length of the clamping plate, and the width of the receiving plate is greater than the width of the clamping plate. The receiving plate is fixed to the bottom of the box with bolts.

7. The cover plate assembly flatness detection jig according to claim 1, wherein The clamping plate is equipped with a slider, which has a round hole. The slider is fitted onto the guide rod through the round hole.

8. The cover plate assembly flatness detection jig according to claim 7, wherein The diameter of the circular hole is larger than the diameter of the guide rod, and a gap is provided between the circular hole and the guide rod to allow the slider to move.

9. The cover plate assembly flatness detection jig according to claim 1, wherein There are at least two guide rods, which are positioned on both sides of the threaded hole.

10. The cover plate assembly flatness inspection tool of claim 1, wherein, The enclosure is made of stainless steel.

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