Cover plate anti-explosion valve protective film attaching tool

Abstract

The utility model discloses a cover plate explosion-proof valve protective film attaching tool, and relates to the field of battery explosion-proof valve assembling equipment, the cover plate explosion-proof valve protective film attaching tool comprises a fixing piece and a pressing device, the fixing piece is provided with a fixing groove, and the fixing piece is fixed on a base plate through the fixing groove; the pressing device linearly moves on the fixing piece through the connecting piece, the pressing device is arranged corresponding to the anti-explosion valve of the base plate, the pressing device presses the protective film on the anti-explosion valve, and the anti-explosion valve can be accurately covered with the protective film through the fixing piece and the pressing device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery explosion-proof valve assembly equipment, in particular to a cover plate explosion-proof valve protection film attaching tool. BACKGROUND

[0002] In the field of electronic product manufacturing, especially in the production process of cover plate assemblies with explosion-proof valve design, the attachment of explosion-proof valve protection film is a crucial process. As a key component in the cover plate assembly, the main function of the explosion-proof valve is to release internal pressure under certain conditions (such as abnormal increase of internal pressure of the battery) to prevent safety accidents such as explosion. However, the explosion-proof valve is easily damaged by external factors such as dust, moisture and physical impact during manufacturing and transportation, which may affect its normal function and safety.

[0003] In order to effectively protect the explosion-proof valve, a layer of protection film is usually attached to the surface of the explosion-proof valve during the manufacturing process of the cover plate assembly. This layer of protection film not only isolates external pollutants, but also reduces the potential damage of physical impact to the explosion-proof valve to a certain extent. However, the traditional manual attachment method has many shortcomings, such as inaccurate attachment position, easy air bubble between the protection film and the explosion-proof valve, low attachment efficiency, etc. These problems not only affect the appearance and reliability of the product, but also increase the production cost and cycle.

[0004] With the rapid development of automation technology, more and more enterprises begin to explore the application of automatic attachment equipment to improve production efficiency and attachment quality. However, the existing automatic attachment equipment still has many challenges in dealing with the attachment of cover plate explosion-proof valve protection film with complex structure and special material requirements. For example, how to ensure that the protection film can be accurately attached to the explosion-proof valve while avoiding air bubble; how to ensure the attachment accuracy while improving the versatility and flexibility of the equipment to adapt to the attachment needs of explosion-proof valves of different sizes and shapes; and how to optimize the attachment process to reduce material waste and production cost, etc.

[0005] In view of the above problems, the industry urgently needs an efficient, accurate and flexible cover plate explosion-proof valve protection film attaching tool to realize automatic and standardized attachment operation, improve production efficiency, and ensure attachment quality and product reliability. CONTENT OF THE INVENTION

[0006] In order to solve the problems existing in the prior art, the present application provides a cover plate explosion-proof valve protection film attaching tool, comprising:

[0007] A fixing member is provided with a fixing groove, and the fixing member is fixed on the base plate through the fixing groove;

[0008] The pressing device is linearly movable on the fixing member through the connecting member, and the pressing device is arranged corresponding to the explosion-proof valve of the base plate, and the pressing device presses the protective film on the explosion-proof valve.

[0009] Optionally, in some embodiments of the present application, a moving groove is arranged on the fixing member, the moving groove is arranged parallel to the position of the base plate, the moving groove is arranged corresponding to the position of the explosion-proof valve, and the projection of the moving groove towards the base plate covers the explosion-proof valve.

[0010] Optionally, in some embodiments of the present application, the fixing groove is arranged through the fixing member, and the cross section of the fixing groove is the same as the cross section of the base plate, so that the base plate is sleeved in the fixing groove.

[0011] Optionally, in some embodiments of the present application, a pressing groove is arranged on the fixing member, one side of the pressing groove is provided with a pressing opening, and the shape of the position of the pressing groove away from the pressing opening is the same as the shape of the explosion-proof valve, so that the pressing groove abuts against the boss on the explosion-proof valve, and the fixing member is fixed on the base plate through the pressing groove.

[0012] Optionally, in some embodiments of the present application, the pressing device comprises a pressing block, the pressing block is located in the pressing groove, and the pressing block is linearly movable in the pressing groove, and the movement direction of the pressing block in the pressing groove is perpendicular to the base plate, so that the pressing block presses the base plate.

[0013] Optionally, in some embodiments of the present application, the connecting member is arranged at the two side positions of the pressing block, an adjusting groove is arranged on the fixing member corresponding to the position of the connecting member, the connecting member is located in the adjusting groove, a spring is arranged between the connecting member and the groove wall position of the adjusting groove, and the pressing block is linearly movable in the pressing groove through the spring.

[0014] Optionally, in some embodiments of the present application, the spring is arranged at the side position of the connecting member towards the base plate.

[0015] Optionally, in some embodiments of the present application, a first limiting part is arranged at the outer side position of the pressing block, a second limiting part is arranged in the fixing groove corresponding to the position of the first limiting part, and the pressing block is limited in the pressing groove through the cooperation of the first limiting part and the second limiting part.

[0016] Optionally, in some embodiments of the present application, the first limiting part and the second limiting part are both arranged as limiting grooves, the arrangement direction of the limiting grooves is perpendicular to the base plate, so that the pressing block is linearly movable in the pressing groove through the limiting grooves.

[0017] Optionally, in some embodiments of the present application, the boss on the pressing block towards the position of the explosion-proof valve is provided with an abutting ring, the abutting ring is arranged corresponding to the position of the boss, and the shape of the abutting ring corresponds to the shape of the boss, when the pressing block moves to a position towards the substrate, the abutting ring abuts the boss.

[0018] Compared with the prior art, the beneficial effects in the present application are:

[0019] The fixing member in the tool is designed with a fixing groove completely matched with the shape of the substrate, and the tolerance is controlled within ±0.1mm, so as to ensure that the substrate can be accurately positioned and clamped. At the same time, the setting of the moving groove also accurately corresponds to the position of the explosion-proof valve, so that the protective film can accurately cover the explosion-proof valve;

[0020] The pressing device is connected with the fixing member through the connecting member, and can linearly slide under the action of the spring to uniformly press the substrate, which not only simplifies the attaching process, but also greatly improves the attaching efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 The overall structure schematic diagram of the cover plate explosion-proof valve protective film attaching tool cooperating with the substrate and the protective film is provided for the embodiments of the present application;

[0023] Figure 2 For Figure 1 The side cut structure schematic diagram of the overall structure is provided for the embodiments of the present application;

[0024] Figure 3 For Figure 2 The enlarged structure schematic diagram of A in the embodiments of the present application is provided;

[0025] Figure 4 The overall structure schematic diagram of the fixing member is provided for the embodiments of the present application;

[0026] Figure 5 The overall structure schematic diagram of the pressing block is provided for the embodiments of the present application.

[0027] Explanation of reference signs:

[0028] 100, fixing piece; 110, fixing groove; 111, second limiting part; 120, moving groove; 130, pressing groove; 131, pressing opening; 140, adjusting groove; 141, spring; 200, pressing device; 210, pressing block; 211, first limiting part; 212, abutting ring; 300, connecting piece; 400, base plate; 410, explosion-proof valve; 411, boss; 500, protective film. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. It can be understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for clear description, and does not limit the connection mode.

[0030] Specifically, as shown in the drawings, Figure 1 The cover plate explosion-proof valve protective film attaching tool provided by the embodiments of the present application is mainly used for battery explosion-proof valve 410 assembly equipment, and mainly includes a fixing piece 100 and a pressing device 200. The overall structure of the fixing piece 100 matches the shape of a base plate 400 on the battery. A fixing groove 110 is arranged on the fixing piece 100. The fixing groove 110 is sleeved with the base plate 400, so that the fixing piece 100 is installed on the base plate 400. The following embodiments are specifically as follows:

[0031] Embodiment 1: As shown in the drawings, Figures 1-4 The cover plate explosion-proof valve protective film attaching tool provided by the embodiments of the present application is mainly used for battery explosion-proof valve 410 assembly equipment, and mainly includes a fixing piece 100 and a pressing device 200. The overall structure of the fixing piece 100 matches the shape of a base plate 400 on the battery. A fixing groove 110 is arranged on the fixing piece 100. The fixing groove 110 is sleeved with the base plate 400, so that the fixing piece 100 is installed on the base plate 400. The following embodiments are specifically as follows:

[0032] A moving groove 120 is arranged on the fixing piece 100. The moving groove 120 is parallel to the plane of the base plate 400. The moving groove 120 is arranged at the position of the explosion-proof valve 410, and the length direction projection of the moving groove 120 covers the explosion-proof valve 410 area on the base plate 400. The protective film 500 can be placed in the moving groove 120.

[0033] The pressing device 200 is connected to the fixing member 100 via the connector 300. The connector 300 is a symmetrically arranged connecting block, which is located on both sides of the pressing block 210. The fixing member 100 is provided with an adjustment groove 140 corresponding to the position of the connector 300. The connecting block is embedded in the adjustment groove 140 to realize the linear sliding of the pressing device 200 along the adjustment groove 140.

[0034] In the embodiments of this application, such as Figure 4 As shown, a pressing groove 130 is also provided on the fixing member 100. A pressing opening 131 is provided on one side of the pressing groove 130. The shape of the part of the pressing groove 130 away from the pressing opening 131 is the same as the shape of the explosion-proof valve 410, so that the pressing groove 130 abuts against the boss 411 on the explosion-proof valve 410, and the fixing member 100 is fixed on the base plate 400 through the pressing groove 130.

[0035] like Figure 3 As shown, the main body of the pressing device 200 is a pressing block 210. The bottom of the pressing block 210 is provided with an abutment ring 212. The inner contour of the abutment ring 212 matches the shape of the boss 411 of the explosion-proof valve 410 (such as round or square). The surface of the abutment ring 212 is covered with a silicone layer (1mm thick). Its structure can prevent scratching the protective film 500.

[0036] Meanwhile, the pressing block 210 is located in the pressing groove 130, and the pressing block 210 moves linearly in the pressing groove 130. The moving direction of the pressing block 210 in the pressing groove 130 is perpendicular to the substrate 400, so that the pressing block 210 presses the substrate 400.

[0037] A compression spring 141 is installed between the connector 300 and the wall of the adjustment groove 140. One end of the spring 141 is fixed to the side of the connector 300 near the base plate 400, and the other end abuts against the outer wall of the moving groove 120. The pressing block 210 moves linearly in the pressing groove 130 by means of the spring 141.

[0038] The spring 141 has a stiffness coefficient of 5 N / mm. Under normal conditions, it keeps the pressing block 210 in its initial high position. In this embodiment, the pressing block 210 is 10 mm away from the substrate 400. When the pressing block 210 is pressed down, the spring 141 can provide a pressing force of 20-50 N to ensure that the protective film 500 can be evenly attached.

[0039] Based on the above structure, the actual operation process is as follows:

[0040] Push the substrate 400 along the fixed groove 110 to the limiting position, align the boss 411 of the explosion-proof valve 410 on the substrate 400 with the pressing groove 130, so that the fixed part 100 is limited by the boss 411, and the protective film 500 passes through the fixed part 100 through the moving groove 120, so that the protective film is located above the explosion-proof valve 410, so that the protective film 500 covers the surface of the explosion-proof valve 410, and the protective film 500 is lightly pressed to complete the preliminary positioning.

[0041] Push the pressing block 210, so that the abutting ring 212 on the pressing block 210 pushes the protective film 500 to completely contact the boss 411, and after pressing for 3 seconds, release, and the spring 141 resets the pressing block 210, so that the pressing block 210 is away from the substrate 400 position, and the attachment is completed.

[0042] An embodiment 2 is also provided in the application:

[0043] As shown in Figures 4-5 Embodiment 2 further optimizes the limiting structure based on embodiment 1, which includes a first limiting part 211 and a second limiting part 111, wherein the first limiting part 211 is located on both sides of the pressing block 210, and the second limiting part 111 is arranged in the fixed groove 110 corresponding to the position of the first limiting part 211, and the two cooperate to limit the pressing block 210 to move only in the pressing groove 130 in a direction perpendicular to the substrate 400, and the offset amount of movement is ≤0.5°.

[0044] The first limiting part 211 and the second limiting part 111 in embodiment 2 of the application are both set as tooth groove-shaped limiting grooves, which are arranged in a direction perpendicular to the substrate 400, so that the pressing block 210 can only move in a direction perpendicular to the substrate 400.

[0045] The surface of the limiting groove in the embodiment of the application can be sprayed with a titanium nitride wear-resistant coating, which can improve the service life of the limiting groove and avoid a large amount of wear of the device.

[0046] As shown in Figure 5 An adjustable pressing module is also provided in the application, which is designed in a split type and installed on the pressing block 210, specifically at a position on the pressing block 210 facing the explosion-proof valve 410, and the adjustable pressing module is protrudingly arranged on the pressing block 210, specifically an abutting ring 212, which is arranged corresponding to the position of the boss 411, and the shape of the abutting ring 212 corresponds to the shape of the boss 411, and the abutting ring 212 can be quickly replaced with the pressing block 210 through a magnetic suction interface to adapt to different shapes of the boss 411 (such as star-shaped, polygonal), and when the pressing block 210 moves to a position facing the substrate 400, the abutting ring 212 abuts against the boss 411.

[0047] In the embodiment of the present application, the mobile groove 120 is embedded with a scale ruler, which can support the accurate adjustment of the lateral position of the pressing device 200, and the accuracy of the adjustment is kept within ±0.5mm.

[0048] Preferably, the pressing block 210 can be further integrated with a pressure sensor inside, which can detect the pressing force of the pressing block 210 on the substrate 400, and the pressure sensor is connected with an external digital display screen, which can display the pressing force value in real time, and the pressure value range is 0-100N, and when the pressure value exceeds the range, a buzzer alarm can be triggered.

[0049] Preferably, a laser positioner can be further installed on the top of the fixing member 100, which projects a crosshair to the surface of the substrate 400, which can assist the alignment of the protective film 500, and the positioning accuracy is ±0.05mm.

[0050] In the present application, an embodiment 3 is further provided:

[0051] In practice, the range of different thicknesses of the substrate 400 is mostly between 1-5mm, in order to be compatible with different thicknesses of the substrate 400, the fixing groove 110 can be embedded with a plurality of detachable gasket sets, wherein the thickness of the detachable gasket set is 0.5mm / 1mm / 2mm, and by replacing the gasket, the depth of the fixing groove 110 can be adjusted to fix different specifications of the substrate 400.

[0052] The above embodiments are only used to illustrate the technical method of the present application, but not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical method of the present application.

Claims

1. A fixture for attaching a protective film to an explosion-proof valve cover, characterized in that, include: A fixing member is provided with a fixing groove, and the fixing member is fixed to the base plate through the fixing groove; The pressing device moves linearly on the fixing member via a connector. The pressing device is configured to correspond to the explosion-proof valve of the substrate, and the pressing device presses the protective film onto the explosion-proof valve.

2. The tooling for attaching a protective film to an explosion-proof valve cover according to claim 1, characterized in that, The fixing member has a movable groove, which is set parallel to the position of the base plate and corresponds to the position of the explosion-proof valve. The projection of the movable groove toward the base plate covers the explosion-proof valve.

3. The tooling for attaching a protective film to an explosion-proof valve cover plate according to claim 1, characterized in that, The fixing groove is disposed through the fixing member, and the cross-section of the fixing groove is the same as the cross-section of the substrate, so that the substrate is fitted inside the fixing groove.

4. The cover plate explosion-proof valve protective film attachment fixture according to claim 3, characterized in that, The fixing member is provided with a pressing groove, and a pressing opening is provided on one side of the pressing groove. The shape of the part of the pressing groove away from the pressing opening is the same as the shape of the explosion-proof valve, so that the pressing groove abuts against the boss on the explosion-proof valve, and the fixing member is fixed to the base plate through the pressing groove.

5. The tooling for attaching a protective film to an explosion-proof valve cover plate according to claim 4, characterized in that, The pressing device includes a pressing block located in the pressing groove, and the pressing block moves linearly within the pressing groove. The moving direction of the pressing block in the pressing groove is perpendicular to the substrate, so that the pressing block presses the substrate.

6. The tooling for attaching a protective film to an explosion-proof valve cover plate according to claim 5, characterized in that, The connector is located on both sides of the pressing block. The fixing member has an adjustment groove corresponding to the position of the connector. The connector is located in the adjustment groove. A spring is provided between the connector and the groove wall of the adjustment groove. The pressing block moves linearly in the pressing groove by means of the spring.

7. The tooling for attaching a protective film to an explosion-proof valve cover according to claim 6, characterized in that, The spring is disposed on the connector on one side facing the substrate.

8. The tooling for attaching a protective film to an explosion-proof valve cover plate according to claim 6, characterized in that, A first limiting part is provided on the outer side of the pressing block, and a second limiting part is provided in the fixing groove corresponding to the position of the first limiting part. The pressing block is limited in the pressing groove by the cooperation of the first limiting part and the second limiting part.

9. The tooling for attaching a protective film to an explosion-proof valve cover plate according to claim 8, characterized in that, Both the first limiting part and the second limiting part are configured as limiting grooves, and the setting direction of the limiting grooves is perpendicular to the substrate, so that the pressing block can move linearly within the pressing groove through the limiting groove.

10. The tooling for attaching a protective film to an explosion-proof valve cover according to claim 6, characterized in that, The pressing block has a protruding abutment ring facing the boss of the explosion-proof valve. The abutment ring is set to correspond to the position of the boss, and the shape of the abutment ring corresponds to the shape of the boss. When the pressing block moves toward the base plate to a certain position, the abutment ring abuts against the boss.

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