Battery cover plate explosion-proof valve welding positioning device

Abstract

The utility model discloses battery cover plate explosion -proof valve welding positioning device, including frame, support base, auxiliary positioning mechanism and control panel, support base sets up on the frame upper surface one side, auxiliary positioning mechanism sets up on the frame upper surface other side, control panel is fixed through bolt installation in the frame front side outer wall, places through the setting support base to battery cover plate, positions through the auxiliary positioning mechanism to battery cover plate, before welding to explosion -proof valve, detects the position of explosion -proof valve through detection positioning mechanism, prevents the inaccuracy of explosion -proof valve position and leads to welding intensity to drop, and simultaneously after the detection is finished, the explosion -proof valve is positioned through detection positioning mechanism, and then the precision and intensity after welding of battery cover plate explosion -proof valve are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of welding positioning devices, and in particular to a welding positioning device for explosion-proof valves of battery covers. Background Technology

[0002] Currently, in the welding process of explosion-proof valves for battery covers, the traditional method for positioning explosion-proof valves is vacuum adsorption. This positioning method uses a vacuum pump to remove the air between the explosion-proof valve and the adsorption device, creating a negative pressure environment, thereby adsorbing and fixing the explosion-proof valve above the explosion-proof valve hole on the battery cover to achieve initial positioning.

[0003] However, traditional vacuum adsorption positioning devices have a significant technical deficiency: the lack of an effective monitoring mechanism for the explosion-proof valve. In actual production, various factors, such as dimensional tolerances of the battery cover or the explosion-proof valve itself, precision errors in the production equipment, and vibrations during the feeding process, can cause the explosion-proof valve to fail to be accurately installed into the explosion-proof valve hole on the battery cover. Once this occurs, a gap will form between the explosion-proof valve and the explosion-proof valve hole.

[0004] The presence of such gaps significantly reduces the positioning effectiveness of the explosion-proof valve during welding. From a welding quality perspective, gaps lead to uneven heat distribution during welding, affecting weld strength and sealing, resulting in problems such as incomplete welds and leaks, thus reducing the overall safety of the battery. Moreover, the presence of gaps may prevent the explosion-proof valve from properly relieving pressure when the internal pressure of the battery changes, and may even trigger serious safety accidents such as thermal runaway or explosion.

[0005] Therefore, this application provides a welding positioning device for the explosion-proof valve of the battery cover. Utility Model Content

[0006] This utility model provides a welding positioning device for explosion-proof valves on battery covers, which can solve the problem that the explosion-proof valve and battery cover cannot be accurately installed due to the lack of a detection mechanism during the welding positioning of traditional explosion-proof valves, which easily leads to installation gaps and thus affects welding quality and explosion-proof performance.

[0007] This utility model provides a welding positioning device for an explosion-proof valve on a battery cover, comprising:

[0008] A welding positioning device includes a frame, a support base, an auxiliary positioning mechanism, and a control panel. The support base is disposed on one side of the upper surface of the frame, the auxiliary positioning mechanism is disposed on the other side of the upper surface of the frame, and the control panel is fixedly installed on the outer wall of the front side of the frame by bolts.

[0009] The detection and positioning mechanism, located inside the support base, includes a vacuum pump fixedly installed on one side of the outer wall of the support base and a cylinder fixedly installed inside the support base. An air distribution pipe is fixedly installed at the end of the output shaft of the cylinder. Multiple lifting rods are fixedly installed on the upper surface of the air distribution pipe. The multiple lifting rods penetrate the interior of the support base and protrude from the upper surface of the support base. An array of pressure sensors is fixedly installed on the top of the multiple lifting rods. Multiple air holes are provided on the outer wall of the upper end of the lifting rods. One side of the air distribution pipe is connected to the output end of the vacuum pump through a hose.

[0010] In the battery cover explosion-proof valve welding positioning device according to one embodiment of the present invention, the upper surface of the support base is provided with a plurality of placement grooves, the upper surface of the placement grooves is provided with a plurality of through holes adapted to the lifting rod, and the center of the through holes is coaxially arranged with the center of the battery cover explosion-proof valve mounting hole.

[0011] In the battery cover explosion-proof valve welding positioning device according to one embodiment of the present invention, a sealing ring is provided at the connection between the inner wall of the placement groove and the lifting rod.

[0012] In the battery cover explosion-proof valve welding positioning device according to one embodiment of the present invention, the auxiliary positioning mechanism includes a cylinder two fixedly installed on one side of the upper surface of the frame, and a pressure plate is fixedly installed on one side of the output shaft end of the cylinder two.

[0013] In the battery cover explosion-proof valve welding positioning device of this utility model, guide rails are fixedly installed on both the left and right sides inside the support base, and guide blocks are slidably connected inside the two guide rails. The two ends of the air distribution pipe are respectively fixedly connected to the outer walls of the two guide blocks.

[0014] In the battery cover explosion-proof valve welding positioning device according to one embodiment of the present invention, the radius of the array pressure sensor is smaller than the radius of the battery cover explosion-proof valve mounting hole, and the radius of the sealing ring is larger than the radius of the battery cover explosion-proof valve mounting hole.

[0015] In the battery cover explosion-proof valve welding positioning device of this utility model, the control panel is provided with control buttons, display screen and speaker on the outside, and the control panel is provided with control circuit board and battery inside. The control panel is electrically connected to vacuum pump, cylinder one and cylinder two.

[0016] The technical solution provided in this application embodiment may include the following beneficial effects: This application designs a battery cover explosion-proof valve welding positioning device. The battery cover is placed by setting a support base, and the battery cover is positioned by an auxiliary positioning mechanism. Before welding the explosion-proof valve, the position of the explosion-proof valve is detected by the detection positioning mechanism to prevent the explosion-proof valve from being inaccurately positioned, which would lead to a decrease in welding strength. At the same time, after the detection is completed, the explosion-proof valve is positioned by the detection positioning mechanism, thereby improving the accuracy and strength of the battery cover explosion-proof valve after welding.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a battery cover explosion-proof valve welding positioning device provided in one embodiment of this application;

[0020] Figure 2 yes Figure 1 Schematic diagram of the internal structure of the support base in the welding positioning device for the explosion-proof valve of the battery cover;

[0021] Figure 3 yes Figure 2 A schematic diagram of the structure of the detection and positioning mechanism;

[0022] Figure 4 yes Figure 1 A diagram showing the status of an inaccurately installed explosion-proof valve during testing in the battery cover explosion-proof valve welding positioning device.

[0023] Figure 5 yes Figure 1 A diagram showing the status of a precisely installed explosion-proof valve during testing within a battery cover explosion-proof valve welding and positioning device. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not 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 this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] like Figures 1 to 5 As shown, this application provides a welding positioning device for a battery cover explosion-proof valve, comprising:

[0028] The welding positioning device 100 includes a frame 10, a support base 20, an auxiliary positioning mechanism 40, and a control panel 11. The support base 20 is located on one side of the upper surface of the frame 10, and the auxiliary positioning mechanism 40 is located on the other side of the upper surface of the frame 10. The control panel 11 is fixedly installed on the front outer wall of the frame 10 by bolts. The detection positioning mechanism 30 is located inside the support base 20 and includes a vacuum pump 31 fixedly installed on one side of the outer wall of the support base 20 and a cylinder 32 fixedly installed inside the support base 20. An air distribution pipe 33 is fixedly installed at the end of the output shaft of the cylinder 32. Multiple lifting rods 34 are fixedly installed on the upper surface of the air distribution pipe 33. The multiple lifting rods 34 penetrate the interior of the support base 20 and protrude from the upper surface of the support base 20. An array of pressure sensors 35 are fixedly installed on the top of the multiple lifting rods 34. Multiple air holes 36 are provided on the outer wall of the upper end of the lifting rods 34. One side of the air distribution pipe 33 is connected to the output end of the vacuum pump 31 through a hose.

[0029] After adopting the above technical solution, the battery cover is placed by setting the support base 20 and positioned by the auxiliary positioning mechanism 40. Before welding the explosion-proof valve, the position of the explosion-proof valve is detected by the detection positioning mechanism 30 to prevent the explosion-proof valve from being inaccurately positioned, which would lead to a decrease in welding strength. At the same time, after the detection is completed, the explosion-proof valve is positioned by the detection positioning mechanism 30, thereby improving the accuracy and strength of the explosion-proof valve after welding the battery cover.

[0030] It should be noted that when the battery cover containing the explosion-proof valve is placed on the upper surface of the placement slot 21, the retraction of cylinder 41 causes the pressure plate 42 to move downward, thereby positioning the battery cover. Then, cylinder 32 operates to lift the air distribution pipe 33 upward. As the air distribution pipe 33 rises, the lifting rod 34 on its outer wall moves upward along its trajectory. During the upward movement of the lifting rod 34, the array-type pressure sensor 35 at its upper end enters from the bottom of the explosion-proof valve mounting hole on the battery cover and continues to move upward until it contacts the lower wall of the explosion-proof valve. If the explosion-proof valve and the battery cover are not accurately installed, the lower wall of the explosion-proof valve will tilt. In this case, the array-type pressure sensor 35 will... Only a small portion of the upper surface of the sensor 35 contacts the lower wall of the explosion-proof valve. The detected electrical signal is transmitted to the control panel 11 via the array pressure sensor 35. The control panel 11 then issues an alarm, allowing staff to quickly detect and adjust the explosion-proof valve. If the explosion-proof valve and battery cover are properly installed, the lower wall of the explosion-proof valve will be completely in contact with the upper wall of the array pressure sensor 35. The detected electrical signal is transmitted to the control panel 11 via the array pressure sensor 35. The control panel 11 then drives the vacuum pump 31 to operate. When the vacuum pump 31 operates, it evacuates the air from the installation hole of the explosion-proof valve through the air vent 36, thereby positioning the explosion-proof valve.

[0031] In one optional embodiment, the upper surface of the support base 20 is provided with a plurality of placement slots 21, and the upper surface of the placement slots 21 is provided with a plurality of through holes adapted to the lifting rod 34, and the center of the through hole is coaxially arranged with the center of the battery cover explosion-proof valve mounting hole, so as to place a plurality of battery covers.

[0032] In an optional embodiment, a sealing ring 22 is provided at the connection between the inner wall of the placement groove 21 and the lifting rod 34 to improve the sealing performance.

[0033] In an optional embodiment, the auxiliary positioning mechanism 40 includes a second cylinder 41 fixedly mounted on one side of the upper surface of the frame 10. A pressure plate 42 is fixedly mounted on one side of the output shaft end of the second cylinder 41. The pressure plate 42 moves downward by the contraction of the second cylinder 41, thereby positioning the battery cover.

[0034] In one optional embodiment, guide rails 23 are fixedly installed on both the left and right sides inside the support base 20. Guide blocks 24 are slidably connected inside the two guide rails 23. The two ends of the air distribution pipe 33 are fixedly connected to the outer walls of the two guide blocks 24 respectively. By setting the guide rails 23 and guide blocks 24, the air distribution pipe 33 always moves up and down along a straight line, thereby improving the accuracy of the equipment.

[0035] In one alternative implementation, the radius of the array pressure sensor 35 is smaller than the radius of the battery cover explosion-proof valve mounting hole, and the radius of the sealing ring 22 is larger than the radius of the battery cover explosion-proof valve mounting hole. The array pressure sensor 35 can easily enter the battery cover explosion-proof valve mounting hole, while the sealing ring 22 can provide a seal to the bottom of the battery cover explosion-proof valve mounting hole.

[0036] In one optional embodiment, the control panel 11 is provided with control buttons, a display screen and a speaker on the outside, and a control circuit board and a battery are provided inside the control panel 11. The control panel 11 is electrically connected to the vacuum pump 31, cylinder 32 and cylinder 41. The control panel 11 controls the start and stop of the vacuum pump 31, cylinder 32 and cylinder 41, thereby automatically detecting and positioning.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A welding positioning device for an explosion-proof valve on a battery cover, characterized in that, include: A welding positioning device includes a frame, a support base, an auxiliary positioning mechanism, and a control panel. The support base is disposed on one side of the upper surface of the frame, the auxiliary positioning mechanism is disposed on the other side of the upper surface of the frame, and the control panel is fixedly installed on the outer wall of the front side of the frame by bolts. The detection and positioning mechanism, located inside the support base, includes a vacuum pump fixedly installed on one side of the outer wall of the support base and a cylinder fixedly installed inside the support base. An air distribution pipe is fixedly installed at the end of the output shaft of the cylinder. Multiple lifting rods are fixedly installed on the upper surface of the air distribution pipe. The multiple lifting rods penetrate the interior of the support base and protrude from the upper surface of the support base. An array of pressure sensors is fixedly installed on the top of the multiple lifting rods. Multiple air holes are provided on the outer wall of the upper end of the lifting rods. One side of the air distribution pipe is connected to the output end of the vacuum pump through a hose.

2. The battery cover explosion-proof valve welding positioning device according to claim 1, characterized in that, The upper surface of the support base is provided with multiple placement slots, and the upper surface of the placement slots is provided with multiple through holes that are adapted to the lifting rod. The center of the through hole is coaxial with the center of the battery cover explosion-proof valve mounting hole.

3. The battery cover explosion-proof valve welding positioning device according to claim 2, characterized in that, A sealing ring is provided at the connection between the inner wall of the placement groove and the lifting rod.

4. The battery cover explosion-proof valve welding positioning device according to claim 1, characterized in that, The auxiliary positioning mechanism includes a second cylinder fixedly installed on one side of the upper surface of the frame, and a pressure plate is fixedly installed on one side of the output shaft end of the second cylinder.

5. The battery cover explosion-proof valve welding positioning device according to claim 2, characterized in that, The support base has guide rails fixedly installed on both the left and right sides inside, and guide blocks are slidably connected inside the two guide rails. The two ends of the air distribution pipe are fixedly connected to the outer walls of the two guide blocks respectively.

6. The battery cover explosion-proof valve welding positioning device according to claim 3, characterized in that, The radius of the array-type pressure sensor is smaller than the radius of the battery cover explosion-proof valve mounting hole, while the radius of the sealing ring is larger than the radius of the battery cover explosion-proof valve mounting hole.

7. The battery cover explosion-proof valve welding positioning device according to claim 4, characterized in that, The control panel is equipped with control buttons, a display screen and a speaker on the outside, and a control circuit board and a battery inside the control panel. The control panel is electrically connected to the vacuum pump, cylinder one and cylinder two.

Images