Sealing ring punching device

Abstract

The utility model relates to the field of sealing ring production, in particular to a sealing ring punching device which comprises a frame body and a punching die, the punching die comprises an upper die set and a lower die set, and the lower die set is fixed in the frame body. The lower die set is provided with a supporting block. The upper die set is provided with a punch extending downwards, the bottom of the punch is provided with a limiting protrusion, a first punching part and a second punching part, the limiting protrusion corresponds to the groove body, the first punching part and the second punching part are located on the two sides of the limiting protrusion respectively, and the containing groove bears the sealing ring. Supporting force and limiting force are provided for the sealing ring on the lower portion, the limiting protrusion enters the groove body of the sealing ring, the limiting force is provided for the sealing ring on the upper portion, and the accuracy of the position of the sealing ring in the punching process is jointly ensured. The first punching part located on the inner side conducts deburring punching on the inner ring face of the sealing ring, the second punching part located on the outer side conducts punching on the edge of the sealing ring, and high punching precision and punching efficiency are achieved.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring production, specifically to a sealing ring punching device. Background Technology

[0002] A sealing ring is an annular cover, typically composed of one or more parts, and fixed to the bearing races or washers, contacting another race or washer or forming a narrow labyrinth gap. Its main function is to prevent lubricating oil leakage and the intrusion of foreign objects, ensuring the normal operation of mechanical equipment and components. Simultaneously, sealing rings reduce friction, energy loss, and wear. Furthermore, sealing rings should possess strong corrosion resistance, not corroding the contact surfaces, not contaminating the medium, not aging easily, and having a long service life. In addition, the simple structure of sealing rings, facilitating use and maintenance, is also one of the reasons for their widespread application.

[0003] The production of sealing rings mainly adopts injection molding. However, the cutting efficiency of the sealing rings after injection molding has become a problem that manufacturers need to overcome. Furthermore, with the increase in demand, basic annular sealing rings can no longer meet the usage requirements. For example, sealing rings with raised edges have a more complicated punching process, resulting in poor punching efficiency and accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a sealing ring punching device, which aims to improve the problem that the punching process for sealing rings with warped edges is cumbersome and has poor punching efficiency and accuracy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing ring punching device includes a sealing ring comprising a body, a through hole in the middle of the body, a sealing ring connected to the bottom end of the body, the end of the sealing ring being inclined outward toward the top end of the body, and a groove being formed between the sealing ring and the body. The device also includes a frame and a punching die.

[0007] The punching die includes an upper die and a lower die. The lower die is fixed in the frame. A drive mechanism is fixed on the frame. The drive end of the drive mechanism is connected to the upper die.

[0008] The lower module is provided with a placement block, and a placement groove is opened on the placement block. The sealing ring is placed in the placement groove. The upper module is provided with a downwardly extending punch. The bottom of the punch is provided with a limiting protrusion, a first punching part and a second punching part. The limiting protrusion corresponds to the groove. The first punching part and the second punching part are located on both sides of the limiting protrusion and correspond one-to-one with the inner ring surface and the edge of the sealing ring.

[0009] Furthermore, the placement block is provided with a third punching section and a fourth punching section, which correspond one-to-one with the first punching section and the second punching section, respectively.

[0010] Furthermore, a first annular groove is formed on the first punching part, and the sidewall of the first annular groove is inclined inward from the bottom. A second annular groove is formed on the second punching part, and the sidewall of the second annular groove is perpendicular to the placement block.

[0011] Furthermore, a third annular groove is provided on the third punching part, and the sidewall of the third annular groove is inclined inward from the top. A fourth annular groove is provided on the fourth punching part, and the sidewall of the fourth annular groove is inclined inward from the top.

[0012] Furthermore, the upper module includes an upper template and a pressure plate arranged sequentially from top to bottom, the punch is disposed on the bottom surface of the upper template, a clearance channel is opened on the pressure plate, and the end of the punch is embedded in the clearance channel;

[0013] The pressure plate is provided with a guide rod, the end of which extends upward and passes through the upper template to connect with a protrusion. The bottom surface of the protrusion abuts against the top surface of the upper template.

[0014] Furthermore, the guide rod includes a baffle and a rod body, one end of the rod body is fixedly connected to the baffle, and the rod body is provided with a lower threaded section, a guide section and an upper threaded section from bottom to top.

[0015] The bottom surfaces of the baffle and the pressure plate abut against each other, and the rod is fixedly connected to the pressure plate through the lower threaded section; a guide hole is provided on the upper template, and the guide section passes through the guide hole; the rod is fixedly connected to the protrusion through the upper threaded section.

[0016] Furthermore, there are multiple punches, a punching area is provided on the bottom surface of the upper template, multiple punches are arranged in an array within the punching area, and there are multiple guide rods, which are spaced apart around the periphery of the punching area.

[0017] Furthermore, a first reset member is wound around the guide rod, and the top and bottom of the first reset member abut against the upper template and the pressure plate, respectively.

[0018] Furthermore, the lower module includes a lower template and a support block. The support block is fixed to the frame, the lower template is fixed to the support block, and the support block is disposed on the top surface of the lower template.

[0019] The support block protrudes from the lower template on both sides and is provided with positioning blocks, which abut against the side of the lower template.

[0020] Furthermore, a guide post is fixed on the support block, the guide post passing through the lower template and the upper module, and protruding from the upper module.

[0021] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0022] The placement groove supports the sealing ring, providing support and limiting force from below. During the punching process, the limiting protrusion of the punch enters the groove of the sealing ring, providing limiting force from above, together ensuring the accuracy of the sealing ring's position during punching. The first punching part located on the inner side punches the inner ring surface of the sealing ring to remove burrs, while the second punching part located on the outer side punches the edge of the sealing ring, cutting off the connection between the end of the sealing ring and the material, resulting in high punching accuracy and efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the sealing ring described in this utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of the sealing ring described in this utility model;

[0025] Figure 3 This is a schematic diagram of the mold opening structure of the sealing ring punching device of this utility model;

[0026] Figure 4 This is a schematic diagram of the mold closing structure of the sealing ring punching device of this utility model;

[0027] Figure 5 This is a schematic diagram of the frame structure of the sealing ring punching device of this utility model;

[0028] Figure 6 This is a schematic diagram of the upper module structure of the sealing ring punching device of this utility model;

[0029] Figure 7 This is a schematic cross-sectional view of the upper module of the sealing ring punching device of this utility model;

[0030] Figure 8 This is a schematic diagram of the punch opening state of the sealing ring punching device of this utility model;

[0031] Figure 9 This is a schematic diagram of the punch closing state of the sealing ring punching device of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Sealing ring; 11. Sealing ring; 12. Groove;

[0034] 2. Frame; 21. Base frame; 211. Clearance notch; 22. First shelf; 221. Mounting hole; 23. Support rod; 24. Second shelf; 241. Drive channel;

[0035] 3. Punching die; 31. Upper die assembly; 311. Upper template; 3111. Punch; 3112. Limiting protrusion; 3113. First punching section; 3114. Second punching section; 3115. First annular groove; 3116. Second annular groove; 312. Pressure plate; 3121. Relief channel; 3122. Relief groove; 3123. Inserting groove; 32. Lower die assembly; 321. Lower template; 3211 3211 Placement block; 3212 Placement groove; 3213 Third punching section; 3214 Fourth punching section; 3215 Third annular groove; 3216 Fourth annular groove; 322 Support block; 3221 Positioning block; 3222 Guide post; 33 Guide rod; 331 Baffle; 332 Rod body; 3321 Lower threaded section; 3322 Guide section; 3323 Upper threaded section; 34 Protrusion;

[0036] 4. Drive mechanism; 41. Drive rod; 42. Drive plate; 421. Extension channel. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0038] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0040] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Example

[0042] Please refer to Figure 1-9 As shown, this embodiment provides a sealing ring punching device. The sealing ring 1 includes a body with a through hole in the middle and a sealing ring 11 connected to the bottom end of the body. The end of the sealing ring 11 is inclined outward toward the top of the body, and the sealing ring 11 and the body enclose each other to form a groove 12.

[0043] Specifically, the sealing ring 1 punching device includes a frame 2 and a punching die 3. The punching die 3 includes an upper die 31 and a lower die 32, with the lower die 32 fixed inside the frame 2. A drive mechanism 4 is fixed on the frame 2, and the drive end of the drive mechanism 4 is drivenly connected to the upper die 31. The lower die 32 is provided with a placement block 3211, and a placement groove 3212 is opened on the placement block 3211, in which the sealing ring 1 is placed. The upper die 31 is provided with a downwardly extending punch 3111. The bottom of the punch 3111 is provided with a limiting protrusion 3112, a first punching part 3113, and a second punching part 3114. The limiting protrusion 3112 corresponds to the groove 12. The first punching part 3113 and the second punching part 3114 are located on both sides of the limiting protrusion 3112 and correspond one-to-one with the inner ring surface of the sealing ring 1 and the edge of the sealing ring 11.

[0044] Please refer to Figure 8 and 9 As shown, the placement groove 3212 supports the sealing ring 1, providing support and limiting force below. During the punching process, the limiting protrusion 3112 of the punch 3111 enters the groove 12 of the sealing ring 1, providing limiting force above, together ensuring the accuracy of the sealing ring 1's position during the punching process. The first punching part 3113 located on the inner side punches the inner ring surface of the sealing ring 1 to remove burrs, and the second punching part 3114 located on the outer side punches the edge of the sealing ring 11, cutting off the connection between the end of the sealing ring 11 and the material, which has high punching accuracy and punching efficiency.

[0045] Furthermore, the placement block 3211 is provided with a third punching section 3213 and a fourth punching section 3214, which correspond one-to-one with the first punching section 3113 and the second punching section 3114, respectively. The third punching section 3213 and the fourth punching section 3214 remove the connection structure and burrs between the sealing ring 1 and the material from below, further improving the punching efficiency of the sealing ring 1.

[0046] In this embodiment, the first punching portion 3113 has a first annular groove 3115, and the sidewall of the first annular groove 3115 is inclined inward from the bottom. This causes the end of the first punching portion 3113 to be in an inclined state to remove burrs, concentrating the punching force at the bottom end within the burrs and effectively improving the efficiency of burr removal. The second punching portion 3114 has a second annular groove 3116, and the sidewall of the second annular groove 3116 is perpendicular to the placement block 3211. This causes the end of the second punching portion 3114 to be in a vertical state to punch the connecting structure, providing sufficient punching depth for the end of the sealing ring 11 and ensuring stable removal of the connecting structure.

[0047] Furthermore, the third punching section 3213 has a third annular groove 3215, the sidewall of which is inclined inward from the top. The fourth punching section 3214 has a fourth annular groove 3216, the sidewall of which is also inclined inward from the top. The third and fourth punching sections 3213 and 3214 provide support from below, with their ends inclined to provide good support for the burrs and connecting structures, ensuring that the burrs and connecting structures are completely removed. The third and fourth annular grooves 3215 and 3216 also provide downward space for the burrs and connecting structures, allowing for thorough removal of the bottom of the burrs and connecting structures during the punching process.

[0048] Please refer to Figure 1-3As shown, in this embodiment, the frame 2 includes a base frame 21. A clearance notch 211 is provided on one side of the base frame 21, allowing objects or employees to enter the interior of the base frame 21, thus improving the utilization of the internal space of the frame 2. A first layer plate 22 is fixed to the frame 2. Multiple mounting holes 221 are arrayed on the first layer plate 22, which are used to fix and install the lower module 32. The arrayed mounting holes 221 also meet the installation requirements of lower modules 32 of different sizes, improving overall practicality. Support rods 23 are fixed around the first layer plate 22, and a second layer plate 24 is fixed to the top of the support rods 23. A drive channel 241 is provided on the second layer plate 24. A drive mechanism 4 is fixed to the top surface of the second layer plate 24, and the drive end of the drive mechanism 4 passes through the drive channel 241 and is fixedly connected to the upper module 31. In this embodiment, the drive mechanism 4 is a telescopic cylinder; similarly, the drive mechanism 4 can also be other telescopic drive structures. The drive cylinder is connected to a drive rod 41. The free end of the drive rod 41 passes through the drive channel 241 and is fixed to a drive plate 42 by bolts. The drive plate 42 is fixedly connected to the upper module 31. The drive plate 42 increases the contact area between the drive mechanism 4 and the upper module 31, ensuring good stability of the upper module 31 during mold opening and closing, and reducing energy loss.

[0049] Please refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, specifically, the upper module 31 includes an upper template 311 and a pressure plate 312 arranged sequentially from top to bottom. The drive plate 42 is fixedly connected to the top surface of the upper template 311 by bolts. In this embodiment, the width of the drive plate 42 is equal to the width of the upper template 311, and the length of the drive plate 42 is less than the length of the upper template 311, further ensuring a large contact area between the drive plate 42 and the upper template 311. The punch 3111 is disposed on the bottom surface of the upper template 311, and a clearance channel 3121 is opened on the pressure plate 312, with the end of the punch 3111 embedded in the clearance channel 3121. A guide rod 33 is provided on the pressure plate 312, with the end of the guide rod 33 extending upward and passing through the upper template 311 to connect to a protrusion 34. The bottom surface of the protrusion 34 abuts against the top surface of the upper template 311. The protrusion 34 is located above the upper template 311 and provides support for the guide rod 33, thereby ensuring the stability between the pressure plate 312 and the upper template 311.

[0050] Furthermore, the guide rod 33 includes a baffle 331 and a rod body 332. One end of the rod body 332 is fixedly connected to the baffle 331. In this embodiment, an embedding groove 3123 is provided on the bottom surface of the pressure plate 312, and the baffle 331 is embedded in the embedding groove 3123. The bottom surface of the baffle 331 is flush with the bottom surface of the pressure plate 312 to ensure the tightness of the fit between the pressure plate 312 and the lower template 321. The rod body 332 is provided with a lower threaded section 3321, a guide section 3322, and an upper threaded section 3323 from bottom to top. The baffle 331 abuts against the bottom surface of the pressure plate 312, and the rod body 332 is fixedly connected to the pressure plate 312 through the lower threaded section 3321. A guide through hole is provided on the upper template 311, and the guide section 3322 passes through the guide through hole; the rod body 332 is fixedly connected to the protrusion 34 through the upper threaded section 3323. The baffle 331 supports the pressure plate 312 from below. The rod 332 is fixedly connected to the pressure plate 312 through the lower threaded section 3321 and to the protrusion 34 through the upper threaded section 3323, further ensuring the stability of the combined state between the pressure plate 312 and the upper template 311.

[0051] Furthermore, there are multiple punches 3111, and a punching area is provided on the bottom surface of the upper template 311. Multiple punches 3111 are arranged in an array within the punching area, further improving punching efficiency. There are also multiple guide rods 33, spaced apart on the periphery of the punching area. In this embodiment, there are eight guide rods 33, spaced apart on both sides of the punching area. An extension channel 421 is provided on the drive plate 42 to allow space for the guide rods 33 covered by the drive plate 42, allowing the ends of the guide rods 33 to enter the extension channel 421 and extend upwards, increasing the range of the guide rods 33 and providing good guidance for the upper template 311. A first reset member (not shown in the figures) is wound around the guide rod 33, with its top and bottom abutting against the upper template 311 and the pressure plate 312, respectively. In this embodiment, the first reset element is a spring. The spring provides a pushing force to the pressure plate 312 and the upper template 311, ensuring that the pressure plate 312 can stably press against the material to be punched in the mold-closed state. At the same time, during the transition from the mold-closed state to the mold-opening state, the drive mechanism 4 drives the upper template 311 to move upward, and the first reset element continuously provides downward disengagement for the pressure plate 312, ensuring that after the punch 3111 and the material are separated from each other, the pressure plate 312 is separated from the material, thus preventing the sealing ring 1 from moving upward with the punch 3111 during the mold-opening process, which would affect the material feeding of the sealing ring 1.

[0052] Furthermore, the lower module 32 includes a lower template 321 and a support block 322. The support block 322 is fixed to the frame 2, and the lower template 321 is fixed to the support block 322. The support block 322 is disposed on the top surface of the lower template 321. In this embodiment, there are two support blocks 322. The two support blocks 322 support and connect the lower template 321 on both sides along its length, ensuring the stability of the lower template 321 during the mold opening and closing process. The two sides of the support block 322 protrude from the lower template 321 and are provided with positioning blocks 3221. The positioning blocks 3221 abut against the side of the lower template 321. The positioning blocks 3221 position the lower template 321, ensuring the accuracy of the position of the upper template 311 and the lower template 321 during the mold opening and closing process.

[0053] Furthermore, a guide post 3222 is fixed on the support block 322. The guide post 3222 passes through the lower template 321 and the upper module 31, and protrudes from the upper module 31. In this embodiment, the upper template 311 and the lower template 321 are molded together, and the top height of the guide post 3222 is higher than the top surface height of the upper template 311 in the open state. The guide post 3222 guides the upper module 31, further ensuring the accuracy of the mold closing process of the upper template 311 and the lower template 321. In this embodiment, a second reset member (not shown in the figure) is sleeved on the periphery of the guide post 3222. The second reset member is a spring. The top and bottom ends of the second reset member are in contact with the bottom surface of the pressure plate 312 and the top surface of the lower template 321, respectively. The second reset member provides a reset force for the upper module 31, reducing the energy loss of the drive mechanism 4. Furthermore, a relief groove 3122 is provided on the bottom surface of the pressure plate 312 and the top surface of the lower template 321. The end of the second reset member is embedded in the relief groove 3122, so that the pressure plate 312 and the lower template 321 can fit tightly together, improving the mold closing effect.

[0054] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A sealing ring punching device, wherein the sealing ring includes a body, a through hole is formed in the middle of the body, a sealing ring is connected to the bottom end of the body, the end of the sealing ring is inclined outward toward the top end of the body, and a groove is formed between the sealing ring and the body, characterized in that, Including the frame and punching die, The punching die includes an upper die and a lower die. The lower die is fixed in the frame. A drive mechanism is fixed on the frame. The drive end of the drive mechanism is connected to the upper die. The lower module is provided with a placement block, and a placement groove is opened on the placement block. The sealing ring is placed in the placement groove. The upper module is provided with a downwardly extending punch. The bottom of the punch is provided with a limiting protrusion, a first punching part and a second punching part. The limiting protrusion corresponds to the groove. The first punching part and the second punching part are located on both sides of the limiting protrusion and correspond one-to-one with the inner ring surface and the edge of the sealing ring.

2. The sealing ring punching device according to claim 1, characterized in that: The placement block is provided with a third punching section and a fourth punching section, which correspond one-to-one with the first punching section and the second punching section, respectively.

3. The sealing ring punching device according to claim 1, characterized in that: The first punching part has a first annular groove, and the sidewall of the first annular groove is inclined inward from the bottom. The second punching part has a second annular groove, and the sidewall of the second annular groove is perpendicular to the placement block.

4. The sealing ring punching device according to claim 2, characterized in that: The third punching section has a third annular groove, and the sidewall of the third annular groove is inclined inward from the top. The fourth punching section has a fourth annular groove, and the sidewall of the fourth annular groove is inclined inward from the top.

5. The sealing ring punching device according to claim 1, characterized in that: The upper module includes an upper template and a pressure plate arranged sequentially from top to bottom. The punch is set on the bottom surface of the upper template. A clearance channel is opened on the pressure plate, and the end of the punch is embedded in the clearance channel. The pressure plate is provided with a guide rod, the end of which extends upward and passes through the upper template to connect with a protrusion. The bottom surface of the protrusion abuts against the top surface of the upper template.

6. The sealing ring punching device according to claim 5, characterized in that: The guide rod includes a baffle and a rod body. One end of the rod body is fixedly connected to the baffle. The rod body is provided with a lower threaded section, a guide section, and an upper threaded section from bottom to top. The bottom surfaces of the baffle and the pressure plate abut against each other, and the rod is fixedly connected to the pressure plate through the lower threaded section; a guide hole is provided on the upper template, and the guide section passes through the guide hole; the rod is fixedly connected to the protrusion through the upper threaded section.

7. The sealing ring punching device according to claim 5, characterized in that: The number of punches is multiple, and a punching area is provided on the bottom surface of the upper template. Multiple punches are arranged in an array within the punching area. The number of guide rods is multiple, and multiple guide rods are arranged at intervals around the periphery of the punching area.

8. The sealing ring punching device according to claim 5, characterized in that: A first reset member is wound around the guide rod, and the top and bottom of the first reset member abut against the upper template and the pressure plate, respectively.

9. The sealing ring punching device according to claim 1, characterized in that: The lower module includes a lower template and a support block. The support block is fixed to the frame, and the lower template is fixed to the support block. The support block is disposed on the top surface of the lower template. The support block protrudes from the lower template on both sides and is provided with positioning blocks, which abut against the side of the lower template.

10. The sealing ring punching device according to claim 9, characterized in that: A guide post is fixed on the support block. The guide post passes through the lower template and the upper module and protrudes from the upper module.

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