Capacitor aluminum shell explosion-proof product, production equipment and production process

Abstract

The invention relates to the technical field of capacitor aluminum shell explosion prevention, in particular to a capacitor aluminum shell explosion-proof product, production equipment and a production process. A capacitor aluminum shell anti-explosion product with a cross-shaped anti-explosion groove is included, the anti-explosion groove is composed of two groove lines which are perpendicular to each other and uniform in width, in addition, the invention provides special production equipment and a technological process, and the equipment comprises a bottom plate, a blade seat, a cross-shaped stamping knife and other components so as to accurately engrave the anti-explosion groove. The method has the effect of reducing the harm generated by the explosion of the capacitor.

Description

Technical Field

[0001] The present application relates to the technical field of explosion-proof aluminum shells for capacitors, and in particular to an explosion-proof aluminum shell product, production equipment and production process for capacitors. Background Art

[0002] As a key component in electronic circuits, capacitors are widely used in power systems, communication equipment, and various consumer electronic products. With the development of modern technology, the performance of capacitors is constantly improving, and their application scope is also expanding.

[0003] However, in actual operation, capacitors may fail or even explode due to factors such as overcurrent, overvoltage or high temperature, which may not only cause circuit paralysis but also endanger personal safety. Summary of the invention

[0004] In order to reduce the hazards caused by capacitor explosion, the present application provides a capacitor aluminum shell explosion-proof product, production equipment and production process.

[0005] On the one hand, the present application provides a production equipment for capacitor aluminum shell explosion-proof products, which adopts the following technical solution: A production equipment for capacitor aluminum shell explosion-proof products, comprising: A fixing seat, one side of which is provided with a leading block, the leading block is provided with a leading guide groove for positioning the aluminum shell, and the leading block is provided with a mounting hole; A limit assembly, the limit assembly is inserted into the mounting hole, and the limit assembly is used to fix the distance between the fixing seat and the leading block; A discharge plate is arranged between the fixed seat and the leading block, and the discharge plate is slidably connected with the limit assembly; The cross punch is fixed on a fixed seat, the discharge plate is provided with a punch groove, and the cross punch is inserted into the punch groove.

[0006] By adopting the above technical scheme, the fixed seat provides a stable support foundation for the entire equipment to ensure stability during the processing. The synergistic effect of the unloading plate and the leading guide block, combined with the fixing function provided by the limit assembly, fixes the distance between the fixed seat and the leading guide block, and helps to guide the unloading plate, so as to facilitate the smooth withdrawal of the aluminum shell after the processing is completed. Finally, the leading guide groove on the leading guide block and the punch groove on the unloading plate further improve the accuracy of the positioning of the aluminum shell, so that the cross punch can accurately cut into the bottom of the aluminum shell to form an explosion-proof groove composed of two mutually perpendicular groove lines, and ensure that the breaking point is located in the center of the aluminum shell, thereby achieving the best explosion-proof effect. In summary, the production equipment significantly improves the processing accuracy and efficiency of the explosion-proof groove of the capacitor aluminum shell, while reducing the risk of external foreign matter intrusion, and enhancing the overall strength of the aluminum shell and the reliability of long-term use.

[0007] Optionally, the fixed seat includes a fixed plate, a base plate and a blade seat, the fixed plate is connected to one side of the base plate, the side of the base plate away from the fixed plate is connected to the blade seat, the blade seat is provided with a semicircular groove, the groove wall of the semicircular groove is provided with a first mounting groove, the cross punch is inserted into the first mounting groove, a clamping block is installed in the semicircular groove, the clamping block is provided with a second mounting groove, the end of the cross punch away from the first mounting groove is inserted into the second mounting groove, the clamping block is used to press the cross punch to the blade seat, the unloading plate is arranged on the side of the blade seat away from the base plate, and the leading block is arranged on the side of the unloading plate away from the blade seat.

[0008] By adopting the above technical solution, the design of the semicircular groove on the blade seat and the first mounting groove, in conjunction with the clamping block and the second mounting groove, can effectively fix the cross punch, ensuring that the punch does not shift or loosen during operation, thereby ensuring that the width of the engraved explosion-proof groove is accurate and uniform.

[0009] Optionally, the blade seat is threadedly connected with a clamping rod, and the end of the clamping rod away from the blade seat is tightly against the clamping block. By adopting the above technical solution, the clamping rod can firmly fix the position of the clamping block to prevent the clamping block from loosening due to vibration or other external factors during the punching operation, thereby ensuring that the cross punch is firmly clamped in the blade seat, improving the stability of the equipment operation, and improving the high consistency of the engraved explosion-proof groove, thereby improving the explosion-proof performance of the capacitor aluminum shell.

[0010] Optionally, the limiting assembly includes a positioning pin, a blade seat is provided with a first positioning groove, a discharge plate is provided with a second positioning groove, and a leading block is provided with a third positioning groove. The positioning pin is inserted into the first positioning groove, the second positioning groove and the third positioning groove, and the discharge plate slides on the positioning pin through the second positioning groove of the positioning pin.

[0011] By adopting the above technical solution, the locating pins are inserted into the first locating groove, the second locating groove and the third locating groove, so as to reduce the possibility of position deviation of each component during installation, thereby ensuring the accuracy of the cross punch when engraving the explosion-proof groove. In addition, the unloading plate realizes the sliding function with the help of the locating pins, which not only facilitates the smooth ejection of the aluminum shell after processing, but also further improves the degree of automation and efficiency of production.

[0012] Optionally, the limit assembly includes a mounting part and a guide sleeve, the guide sleeve is arranged on the mounting part, the mounting part is inserted into the mounting hole, the mounting part is threadedly connected to the blade seat, the two ends of the guide sleeve are respectively tightly against the fixed seat and the front guide block, the unloading plate is provided with an insertion opening, and the guide sleeve is inserted into the insertion opening.

[0013] By adopting the above technical solution, while guiding the unloading plate, the synergistic effect of the mounting piece and the guide sleeve facilitates disassembly, thereby improving installation convenience.

[0014] On the one hand, the present application provides a capacitor aluminum shell explosion-proof product, which adopts the following technical solution: An explosion-proof product for a capacitor aluminum shell, comprising an aluminum shell. An explosion-proof groove is provided on the bottom wall of the aluminum shell. The explosion-proof groove is composed of two mutually perpendicular groove lines, and a conical groove is provided at the intersection of the two groove lines, forming a breaking point.

[0015] By adopting the above technical solution, when the internal pressure of the capacitor rises, the pressure is first concentrated at the breaking point and preferentially ruptures here, thereby realizing the effective release of pressure, reducing the explosion of the entire aluminum shell. At the same time, this structural design simplifies the explosion-proof mechanism, improves the consistency of the explosion-proof effect, reduces the risk of uneven pressure distribution caused by uneven widths of the explosion-proof grooves, and significantly enhances the safety performance of the capacitor.

[0016] Optionally, the wall thickness at the breaking point is smaller than the wall thickness of the groove lines of the explosion-proof groove.

[0017] By adopting the above technical solution, the wall thickness of the breaking point is smaller than the wall thickness of the groove lines of the explosion-proof groove, making the breaking point the weakest part of the aluminum shell. When the internal pressure of the capacitor rises, the pressure will be preferentially concentrated at the breaking point and cause it to rupture, thereby realizing the effective release of pressure. This method not only improves the consistency of the explosion-proof effect but also ensures the directionality and controllability of pressure release, avoids unnecessary large-area damage, and reduces the impact on the surrounding circuits. At the same time, this design helps to reduce the risk of accidental damage to other parts of the explosion-proof groove and enhances the reliability of the product.

[0018] Optionally, the groove wall of the explosion-proof groove (11) is inclined away from the groove opening, along the length direction of the aluminum shell (1), and the end away from the conical groove is located between the end close to the conical groove and the conical groove.

[0019] By adopting the above technical solution, when blasting occurs at the conical groove, the blasting can be carried out from the end of the explosion-proof groove away from the conical groove to the end close to the conical groove, reducing the possibility of circuit damage caused by central blasting and tearing from the middle to both ends of the explosion-proof groove, and at the same time reducing the overall damage to the bottom of the aluminum shell, thereby ensuring that the aluminum shell has higher strength and longer service life.

[0020] Optionally, the bottom wall of the aluminum shell is circular, and the breaking point is located at the center position of the aluminum shell.

[0021] By adopting the above technical solution, when the internal pressure of the capacitor rises, the pressure is more concentrated in the central area of the aluminum shell, so that the breaking point ruptures first, realizing the effective release of pressure, reducing the risk of unexpected rupture, and enhancing the safety and reliability of the product.

[0022] On the other hand, a production process for an explosion-proof product of a capacitor aluminum shell provided by the present application adopts the production equipment for an explosion-proof product of a capacitor aluminum shell described in any one of claims 1-5, and adopts the following technical solution: A production process of capacitor aluminum shell explosion-proof products, comprising the following steps: S1: Align the aluminum shell with the front guide groove; S2: The punch moves along a predetermined trajectory, the aluminum shell is inserted into the front guide groove, and slides along the groove wall of the front guide groove. The aluminum shell pushes the discharge plate, so that the punch protrudes from one side of the discharge plate, thereby forming a cross-shaped explosion-proof groove at the bottom of the aluminum shell; S3: After the imprinting is completed, the aluminum shell exits from the front guide groove.

[0023] By adopting the above technical solution, accurate cross-proof groove processing can be achieved on the bottom of the capacitor aluminum shell, which significantly improves production efficiency and precision, makes the position of each stamping accurate, reduces the possibility of error problems caused by traditional manual operations, and optimizes the space utilization of the equipment. In addition, through the design and coordination of key components such as punches and front guide grooves, material waste is effectively reduced, the service life of the equipment is extended, and the overall production cost is reduced.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Improve the explosion-proof effect of the capacitor aluminum shell. An explosion-proof groove consisting of two mutually perpendicular groove lines is opened on the bottom wall of the aluminum shell, and a conical groove is opened at the intersection of the groove lines to form a breaking point, which can ensure the concentrated release of pressure and reduce the harm caused by the explosion of the capacitor; 2. The width of the explosion-proof groove is precisely controlled within the range of 0.50±0.01mm, which significantly reduces the possibility of external foreign matter intrusion and improves the stability and reliability of the explosion-proof structure; 3. The wall thickness of the breach point is smaller than the wall thickness of the explosion-proof groove line, which optimizes the stress distribution, ensures the strength of the bottom of the aluminum shell, achieves good explosion-proof performance, and extends the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the position of the guide sleeve in the embodiment of the present application.

[0027] Figure 3 It is an exploded view of the production equipment in the embodiment of the present application.

[0028] Figure 4 It is a schematic diagram of the positions of the clamping block and the leading block in the embodiment of the present application.

[0029] Figure 5 It is a schematic diagram of the positions of the sliding block and the elastic member in the embodiment of the present application.

[0030] Description of reference numerals: 1. Aluminum shell; 11. Explosion-proof groove; 2. Fixed plate; 3. Bottom plate; 4. Blade seat; 41. Cross punch; 42. Pressing block; 421. Pressing rod; 422. Buffer groove; 5. Stripping plate; 6. Front guide block; 61. Mounting part; 62. Guide sleeve; 63. Front guide groove; 64. Discharge groove; 7. Positioning pin; 8. Elastic part; 9. Sliding block. Detailed implementation mode

[0031] The following will further elaborate on this application in conjunction with the attached Figures 1-5 to further illustrate this application in detail.

[0032] When engraving the aluminum shell, the aluminum shell is sleeved on the cylindrical rod.

[0033] On the one hand, the embodiment of this application discloses an explosion-proof product for a capacitor aluminum shell 1.

[0034] Referring to Figure 1 , an explosion-proof product for a capacitor aluminum shell 1 includes an aluminum shell 1. An explosion-proof groove 11 is provided on the bottom wall of the aluminum shell 1. The explosion-proof groove 11 is composed of two mutually perpendicular and linearly extending groove lines. The intersection of the two groove lines forms a break point, so that when the aluminum shell 1 explodes, it explodes from the break point, achieving an efficient explosion-proof effect.

[0035] At the explosion-proof groove 11 at the bottom of the aluminum shell 1, the wall thickness at the break point is smaller than the wall thickness of the groove lines of the explosion-proof groove 11, making the break point the weakest part of the aluminum shell 1. The pressure will be preferentially concentrated at the break point and cause it to rupture. At the same time, it also reduces the possibility that the explosion-proof groove 11 splits crosswise from the middle to the edge, further reducing the possibility that the edges of the exploded aluminum shell 1 cut other circuit lines and cause circuit damage, thereby realizing the effective release of pressure and improving the explosion accuracy.

[0036] The width of each groove line of the explosion-proof groove 11 is precisely controlled within the range of 0.50 ± 0.01 mm, improving the consistency of the explosion-proof effect and reducing the possibility that external foreign objects invade and cause the explosion-proof groove 11 to rupture or block, resulting in explosion-proof failure.

[0037] The bottom wall of the aluminum shell 1 is circular. To further improve the explosion-proof effect, the break point is located at the center position of the aluminum shell 1. When the internal pressure of the capacitor increases, the pressure is concentrated in the central area of the aluminum shell 1, so that the break point ruptures first, realizing the effective release of pressure, reducing the risk of unexpected rupture, and improving the safety and reliability of the product.

[0038] The groove wall of the explosion-proof groove 11 is inclined away from the groove opening, with a slope. Along the length direction of the aluminum shell 1, and the end away from the conical groove is located between the end close to the conical groove and the conical groove, reducing the possibility that central explosion causes the explosion-proof groove to be torn from the middle to both ends and damage the nearby circuit.

[0039] The implementation principle of this embodiment is as follows: when the internal pressure of the capacitor rises, the pressure first concentrates at the break point and preferentially ruptures here, thereby achieving effective pressure release, reducing the explosion of the entire aluminum shell 1. At the same time, this structural design simplifies the explosion-proof mechanism, improves the consistency of the explosion-proof effect, reduces the risk of uneven pressure distribution caused by uneven widths of the explosion-proof grooves 11, and significantly enhances the safety performance of the capacitor.

[0040] On the one hand, an embodiment of the present application discloses an explosion-proof production device for a capacitor aluminum shell.

[0041] Embodiment 1 Referring to Figure 2 , an explosion-proof production device for a capacitor aluminum shell 1 includes a fixed seat, a limiting component, a discharge plate 5, and a cross punch 41. A front guide block is provided on one side of the fixed seat. The front guide block is provided with a front guide groove for positioning the aluminum shell, and the front guide block is provided with a mounting hole. The limiting component is inserted into the mounting hole. The limiting component is used to fix the distance between the fixed seat and the front guide block. The discharge plate is arranged between the fixed seat and the front guide block. The discharge plate is slidably connected to the limiting component. The cross punch is fixed to the fixed seat. The discharge plate is provided with a punch groove, and the cross punch is inserted into the punch groove.

[0042] Specifically, the fixed seat includes a fixing plate 2, a bottom plate 3, and a blade seat 4. The bottom wall of the fixing plate 2 is fixedly connected to the bottom plate 3. The side of the bottom plate 3 away from the fixing plate 2 is fixedly connected to the blade seat 4. The blade seat 4 is disc-shaped. A semi-circular groove is penetrated on the side of the blade seat 4 away from the bottom plate 3. A first mounting groove is opened on the straight-edge groove wall of the semi-circular groove. The cross punch 41 is inserted into the first mounting groove. A pressing block 42 is installed in the semi-circular groove. The pressing block 42 is semi-circular. A second mounting groove is opened on one side of the straight edge of the pressing block 42. The end of the cross punch 41 away from the first mounting groove is inserted into the second mounting groove. The pressing block 42 is used to press the cross punch 41 against the blade seat 4. A discharge plate 5 is provided on the side of the blade seat 4 away from the bottom plate 3. A front guide block 6 is provided on the side of the discharge plate 5 away from the blade seat 4. The front guide block 6 is provided with a mounting hole. The limiting component includes a mounting member 61 and a guide sleeve 62. The mounting member 61 is inserted into the mounting hole. The mounting member 61 is threadedly connected to the blade seat 4. The guide sleeve 62 is sleeved on the mounting member 61. The two ends of the guide sleeve 62 respectively abut against the blade seat 4 and the front guide block 6. The discharge plate 5 is provided with an insertion opening. The guide sleeve 62 is inserted through the insertion opening. The front guide block 6 is provided with a front guide groove 63 for positioning the aluminum shell 1. The front guide groove 63 is semi-circular. The discharge plate 5 is provided with a punch groove. The cross punch 41 is inserted into the punch groove. The peripheral wall of the cross punch 41 fits with the groove wall of the punch groove, providing a clearance for the cross punch 41 and guiding the direction of the cross punch 41, reducing the possibility of the cross punch 41 shifting in position. In this example, the mounting member 61 is a bolt.

[0043] Further, the central axis of the leading groove is collinear with the central axis of the blade seat 4. The circumferential wall of the leading groove 63 is provided with a discharge groove 64 through it, which facilitates the exit of the finished product and reduces the possibility of blockage. The wall of the discharge groove 64 is tangent to the wall of the leading groove 63, which helps to guide the aluminum shell 1 to move smoothly, so that the aluminum shell 1 moves out of the leading groove 63 in the horizontal direction.

[0044] The central axis of the cross punch 41 is inclined, and the minimum included angle between the cross punch 41 and the wall of the discharge groove 64 is 4-10°. Only one end of each of the two mutually perpendicular cutting lines of the cross punch can extend to the wall of the leading groove. When using the cross punch 41 to engrave the aluminum shell 1, a controllable deformation range is provided for the aluminum shell 1 parallel to the engraving direction of the cross punch 41. During engraving, the engraving force extends along the explosion-proof groove 11 perpendicular to the direction of the cross punch 41, reducing the possibility of compacting the wall of the explosion-proof groove during engraving, thereby reducing the wall thickness of the explosion-proof groove and improving the explosion-proof effect.

[0045] Refer to Figure 3 and Figure 4 The blade seat 4 is threadedly connected with a pressing rod 421, and the end of the pressing rod 421 away from the blade seat 4 abuts against the pressing block 42.

[0046] The central axis of the cross punch 41 is collinear with the central axis of the blade seat 4. When the cross punch 41 is installed, the pressing block 42 is placed in the semi-circular groove so that the first installation groove and the second installation groove are collinearly arranged. The opposite ends of the cross punch 41 are respectively inserted into the first installation groove and the second installation groove, and the other two ends are pressed by the blade seat 4 and the pressing block 42. The number of pressing rods 421 is two, and the axis of the pressing rod 421 passes through the central axis of the cross punch 41, so that while the pressing rod 421 presses the pressing block 42, impact strength is provided for the cross punch 41, reducing the possibility of fracture at the center of the cross punch 41.

[0047] Further, the axis of one of the pressing rods 421 is perpendicular to the wall of the discharge groove 64.

[0048] A buffer groove 422 is provided through the side of the pressing block 42 close to the bottom plate 3. The buffer groove 422 is located at the end of the second installation groove away from the first installation groove and is communicated with the first installation groove. When the cross punch 41 is inserted into the second installation groove and the pressing rod 421 presses the pressing block 42, deformation is likely to occur at the buffer groove 422, thereby pressing the cross punch 41.

[0049] At the same time, the limiting assembly also includes a positioning pin 7, the blade seat 4 is provided with a first positioning groove, the unloading plate 5 is provided with a second positioning groove, and the leading guide block 6 is provided with a third positioning groove. The positioning pin 7 is inserted into the first positioning groove, the second positioning groove and the third positioning groove. The two ends of the positioning pin 7 are respectively fixed to the blade seat 4 and the leading guide seat. The unloading plate 5 slides on the positioning pin 7 through the second positioning groove of the positioning pin 7. The outer wall of the positioning pin 7 is fitted with the groove wall of the second positioning groove. The positioning pin 7 is inserted into the first positioning groove, the second positioning groove and the third positioning groove to achieve a precise assembly relationship between the various components.

[0050] The implementation principle of this embodiment 1 is as follows: the aluminum shell 1 is fixed directly below the leading guide block 6, the fixed plate 2 is driven to move downward, the leading guide block 6 moves toward the direction of the aluminum shell 1, the aluminum shell 1 is well positioned due to the restrictions of the boundaries on both sides of the leading guide groove 63, the aluminum shell 1 pushes the unloading plate 5 to move upward, so that the cross punch 41 leaks out, and when the fixed plate 2 continues to move downward, the punch engraves the aluminum shell 1.

[0051] Example 2 Reference Figure 3 and Figure 4 The difference from Example 1 is that a clamping groove is provided on one side of the arc-shaped wall of the clamping block 42, and a clamping rod 421 is inserted into the clamping groove. The clamping rod 421 is pressed against the groove wall away from the groove opening, thereby clamping the clamping block 42. There is no need to use locking structures such as bolts and nuts to fix the clamping block 42, which improves convenience. The groove wall of the clamping groove fits with the outer wall of the clamping rod 421, thereby positioning the clamping block 42. Furthermore, by setting the clamping groove, the clamping block 42 can be quickly positioned and installed without the need to use other auxiliary locking structures, which is convenient and quick.

[0052] Furthermore, a chamfer is provided at the notch of the pressing groove to facilitate guiding the pressing rod 421 .

[0053] The implementation principle of this embodiment 2 is: when installing the cross punch 41, the opposite ends of the cross punch 41 are respectively inserted into the first installation groove and the second installation groove, and the other two ends are clamped by the blade seat 4 and the clamping block 42, and the clamping rod 421 is inserted into the clamping groove, thereby limiting the position of the clamping block, reducing the possibility of movement of the clamping block 42, and improving the engraving accuracy.

[0054] Example 3 Reference Figure 5, different from Embodiment 1, a through groove is formed through one side of the bottom plate 3 close to the fixing plate 2. An elastic member 8 is arranged in the through groove. One end of the elastic member 8 abuts against the fixing plate 2. A first avoidance groove is formed in one side of the blade seat 4 close to the bottom plate 3. A second avoidance groove is formed in one side of the pressing block 42 close to the bottom plate 3. The first avoidance groove is communicated with the second avoidance groove and combined into an avoidance group groove. A first groove is formed in the straight-side groove wall of the semi-circular groove. The first groove is communicated with the first avoidance groove and the first installation groove. A second groove is formed in one side of the straight edge of the pressing block 42. The second groove is communicated with the second avoidance groove and the second installation groove. The first groove is communicated with the second groove and combined into a circular groove. The circular groove is communicated with the avoidance group groove. The avoidance group groove is located between the circular groove and the bottom plate 3. The circular groove and the avoidance group groove form a convex shape, and the axial cross-sectional area of the circular groove is larger than the axial cross-sectional area of the avoidance group groove. The elastic member 8 is inserted into the avoidance group groove. A sliding block 9 is arranged in the circular groove. One end of the elastic member 8 away from the fixing plate abuts against the sliding block 9. One side of the sliding block 9 close to the elastic member 8 abuts against the groove wall of the circular groove close to the avoidance group groove. One side of the sliding block 9 away from the elastic member 8 abuts against the cross punch 41. The peripheral wall of the sliding block 9 is attached to the groove peripheral wall of the circular groove, so as to guide the sliding direction of the sliding block 9 and enable the sliding block 9 to perform directional sliding along the groove wall of the circular groove. In this embodiment, the elastic member 8 is a spring.

[0055] The implementation principle of this Embodiment 3 is as follows: When the cross punch 41 needs to be replaced, loosen the pressing rod 421 to make the cross punch 41 in a free state. At this time, the elastic member 8 releases elasticity, the elastic member 8 extends, and the elastic member 8 pushes the sliding block 9 to move in a direction away from the fixing plate 2 until one side of the sliding block 9 away from the elastic member 8 abuts against the groove wall of the circular groove away from the through groove, and then pushes the cross punch 41 away from the blade seat 4, thereby realizing the disassembly of the cross punch 41; When installing the cross punch 41, insert the cross punch 41 into the first installation groove and the second installation groove, push the cross punch 41, and the cross punch 41 drives the sliding block 9 to slide along the groove wall of the circular groove until one side of the sliding block 9 away from the cross punch 41 abuts against the groove wall of the circular groove close to the avoidance group groove, so as to limit the installation position of the cross punch. Tighten the pressing rod 421 to make the pressing rod 421 tightly abut against the pressing block 42, and the pressing block 42 presses the cross punch 41, thereby realizing the installation of the cross punch 41.

[0056] On the one hand, the present application embodiment discloses a production process of an aluminum shell explosion-proof product for capacitors.

[0057] A production process of an aluminum shell explosion-proof product for capacitors is prepared by using the above-mentioned aluminum shell explosion-proof production equipment for capacitors. The process includes the following steps: S1: Align the aluminum shell 1 with the front guide groove 63. When it enters the front guide groove 63, the aluminum shell 1 is well positioned under the restriction of the two side boundaries of the front guide groove 63.

[0058] S2: Start the equipment to make the punching tool move along a predetermined trajectory. The aluminum shell 1 is inserted into the front guide groove 63 and slides along the groove wall of the front guide groove 63. The aluminum shell 1 pushes the unloading plate 5, making the punching tool protrude from one side of the unloading plate 5, so as to form a cross-shaped explosion-proof groove 11 at the bottom of the aluminum shell 1.

[0059] S3: After the engraving is completed, the aluminum shell 1 slowly exits from the front guide groove 63 and will not encounter any hindrance or jamming when passing through the discharge chute 64.

[0060] Specifically, before performing step S2, a calibration process is added to verify whether the position of the aluminum shell 1 meets the specified standards; and after completing step S3, an inspection link is added to confirm that the geometric characteristics of the finally formed explosion-proof groove 11 reach the design indicators.

[0061] In order to enhance the explosion-proof effect, the break point area needs special treatment. After the initial cutting is completed, the metal material in this area can be removed again in a small amount, for example, gently polished with fine sandpaper to reduce the local thickness to less than half of the original value, or the laser ablation technology can be used to replace the traditional mechanical means. Both of these methods can accurately control the amount of thinning and obtain a smoother and more uniform surface texture, so as to form a natural weak area to ensure a quick response in case of danger without affecting other areas.

[0062] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A production device for an explosion-proof product of a capacitor aluminum shell, characterized in that, include: A fixing seat, one side of which is provided with a leading guide block (6), the leading guide block (6) is provided with a leading guide groove (63) for positioning the aluminum shell (1), and the leading guide block (6) is provided with a mounting hole; A limit assembly, the limit assembly is inserted into the mounting hole, and the limit assembly is used to fix the distance between the fixing seat and the leading block (6); A discharge plate (5) is arranged between the fixed seat and the leading block (6), and the discharge plate (5) is slidably connected to the limiting assembly; The cross punching knife (41) is fixed to the fixing seat, and the discharge plate (5) is provided with a punching knife groove, into which the cross punching knife (41) is inserted.

2. The production equipment of an aluminum shell explosion-proof product for capacitors according to claim 1, characterized in that, The fixed seat comprises a fixed plate (2), a bottom plate (3) and a blade seat (4); the fixed plate (2) is connected to one side of the bottom plate (3); the bottom plate (3) is connected to the blade seat (4) at a side away from the fixed plate (2); the blade seat (4) is provided with a semicircular groove; a first mounting groove is provided on the groove wall of the semicircular groove; a cross punch (41) is inserted into the first mounting groove; a pressing block (42) is installed in the semicircular groove; the pressing block (42) is provided with a second mounting groove; an end of the cross punch (41) away from the first mounting groove is inserted into the second mounting groove; the pressing block (42) is used to press the cross punch (41) against the blade seat (4); a discharge plate (5) is provided on a side of the blade seat (4) away from the bottom plate (3); and a leading block (6) is provided on a side of the discharge plate (5) away from the blade seat (4).

3. The production equipment of an aluminum shell explosion-proof product for a capacitor according to claim 2, characterized in that, The blade seat (4) is threadedly connected with a clamping rod (421), and one end of the clamping rod (421) away from the blade seat (4) is tightly pressed against the clamping block (42).

4. The production equipment of an explosion-proof product for a capacitor aluminum shell according to claim 2, characterized in that, The limiting assembly comprises a positioning pin (7), a blade seat (4) is provided with a first positioning groove, a stripping plate (5) is provided with a second positioning groove, a leading block (6) is provided with a third positioning groove, the positioning pin (7) is inserted into the first positioning groove, the second positioning groove and the third positioning groove, and the stripping plate (5) slides on the positioning pin (7) through the second positioning groove of the positioning pin (7).

5. The production equipment of an aluminum shell explosion-proof product for a capacitor according to claim 1, characterized in that, The limiting assembly comprises a mounting member (61) and a guide sleeve (62), wherein the guide sleeve (62) is sleeved on the mounting member (61), the mounting member (61) is inserted into the mounting hole, the mounting member (61) is threadedly connected to the blade seat (4), two ends of the guide sleeve (62) are respectively tightly pressed against the fixing seat and the front guide block (6), the unloading plate (5) is provided with an insertion opening, and the guide sleeve (62) is inserted into the insertion opening.

6. A capacitor aluminum shell explosion-proof product, which uses the production equipment of a capacitor aluminum shell explosion-proof product described in any one of claims 1-5, is characterized in that, The aluminum shell (1) comprises an explosion-proof groove (11) on the bottom wall of the aluminum shell (1). The explosion-proof groove (11) is composed of two mutually perpendicular groove lines, and a conical groove is formed at the intersection of the two groove lines to form a breaking point.

7. An aluminum shell explosion-proof product for a capacitor according to claim 6, characterized in that, The wall thickness at the breach point is smaller than the wall thickness of the groove line of the explosion-proof groove (11).

8. A capacitor aluminum shell explosion-proof product according to claim 6, characterized in that, The explosion-proof groove (11) is arranged obliquely away from the groove wall of the groove opening, along the length direction of the aluminum shell (1), and the end away from the tapered groove is located between the end close to the tapered groove and the tapered groove.

9. The aluminum shell explosion-proof product of a capacitor according to claim 6, characterized in that, The bottom wall of the aluminum shell (1) is circular, and the breaking point is located at the center of the aluminum shell (1).

10. A production process of an explosion-proof product for a capacitor aluminum shell, using the production equipment of an explosion-proof product for a capacitor aluminum shell described in any one of claims 1-5, characterized in that, The following steps are involved: S1: Align the aluminum shell (1) with the front guide groove (63); S2: Move the punching die along a predetermined trajectory. Insert the aluminum shell (1) into the front guide groove (63) and slide it along the groove wall of the front guide groove (63). The aluminum shell (1) pushes the unloading plate (5), causing the punching die to protrude from one side of the unloading plate (5), thereby forming a cross-shaped explosion-proof groove (11) at the bottom of the aluminum shell (1). S3: After the imprinting is completed, the aluminum shell (1) exits from the front guide groove (63).

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