Automatic punching device for rubber shock pad

Abstract

This utility model discloses an automatic punching device for rubber shock-absorbing pads, relating to the field of punching technology. It includes a base, with a punching assembly fixedly mounted on the upper end of the base. A worktable is fixedly mounted on the punching assembly, and a positioning assembly is fixedly mounted on the worktable by bolts. The positioning assembly consists of a base plate, an insert plate, L-shaped limiting members, a square rod, a screw, and a knob. By setting the positioning assembly on the worktable and adjusting the spacing of the four L-shaped limiting members on the positioning assembly, rubber shock-absorbing pads of different sizes can be positioned. Positioning the inner corners of the L-shaped limiting members towards the inside allows for the positioning of square rubber shock-absorbing pads of different sizes, while positioning the outer corners of the L-shaped limiting members towards the inside allows for the positioning of circular rubber shock-absorbing pads of different sizes. This effectively solves the problem of poor adaptability of existing devices, avoiding the inability to process rubber shock-absorbing pads of incompatible sizes and preventing the shock-absorbing pads from loosening or shifting during processing.

Description

Technical Field

[0001] This utility model relates to the field of punching technology, and in particular to an automatic punching device for rubber shock-absorbing pads. Background Technology

[0002] Rubber vibration damping pads are key damping components widely used in machinery, automobiles, and construction, and their performance is closely related to structural integrity. In actual production, to meet requirements such as installation, weight reduction, or heat dissipation, precise holes need to be drilled at specific locations on the rubber vibration damping pads. This process relies on efficient and stable automatic punching equipment. Automatic punching equipment replaces manual operation with mechanized operation, significantly improving punching efficiency, reducing labor intensity, minimizing human error, and ensuring the consistency and accuracy of hole positions. It is one of the core pieces of equipment in the large-scale production of rubber vibration damping pads.

[0003] However, current rubber component punching devices on the market still have certain limitations and cannot fully adapt to the diverse production needs of rubber shock absorbers. For example, patent application CN202422582165.6 discloses a rubber component punching device. Although this device can achieve basic punching functions, it has obvious defects in its positioning structure design. Its positioning seat has a fixed inner diameter, which can only accommodate rubber components that perfectly match the inner diameter of the positioning seat. For rubber shock absorbers larger than the inner diameter of the positioning seat, they cannot be smoothly placed into the positioning seat and therefore cannot be processed. For rubber shock absorbers smaller than the inner diameter of the positioning seat, loosening and misalignment occur after placement, leading to a significant decrease in positioning accuracy. This poor adaptability and inaccurate positioning directly cause deviations in the punching position, affecting not only the appearance quality and assembly performance of the rubber shock absorber but also potentially leading to product scrap and increased production costs. Therefore, this application proposes an automatic rubber shock absorber punching device to solve the above problems. Utility Model Content

[0004] The main purpose of this utility model is to provide an automatic punching device for rubber shock-absorbing pads, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An automatic punching device for rubber shock-absorbing pads includes a base, a punching assembly fixedly mounted on the upper end of the base, a worktable fixedly mounted on the punching assembly, and a positioning assembly fixedly mounted on the worktable by bolts. The positioning assembly consists of a base plate, an insert plate, L-shaped limiting members, square rods, screws, and knobs. The insert plate is fixedly mounted on the rear end of the base plate. There are four L-shaped limiting members symmetrically placed on the upper end of the base plate. There are four square rods, each fixedly mounted on the lower end of one of the four L-shaped limiting members. The square rods are also mounted inside the base plate. There are four screws, each mounted inside one of the four square rods. There are four knobs, each fixedly mounted on the lower end of one of the four screws.

[0006] Preferably, a through groove is provided on the upper side wall of the equipment base, and a waste container is placed inside the equipment base and below the through groove.

[0007] Preferably, the punching assembly consists of a support frame, a hydraulic cylinder, and a punch structure. The hydraulic cylinder is fixedly installed on the upper front end of the support frame, the punch structure is fixedly installed on the lower end of the piston rod of the hydraulic cylinder, the support frame is fixedly installed on the upper end of the equipment base, and the support frame is also located behind the through slot opened on the upper side wall of the equipment base.

[0008] Preferably, the workbench is located between the through slot on the upper side wall of the equipment base and the punch structure on the punching assembly. The workbench consists of a support plate and a bottom bracket. The bottom bracket is fixedly installed at the lower end of the support plate and at the lower front end of the support frame. Two mounting slots are symmetrically opened at the left and right ends of the support plate. Slots are opened on the rear inner wall of the mounting slots. The slots are opened at both ends of the support plate. Two through holes are symmetrically opened at the front end of the support plate. The through holes communicate with the mounting slots.

[0009] Preferably, the base plate on the positioning component is installed in the mounting groove, the insert plate is inserted into the slot, four guide rail grooves are symmetrically opened on the base plate, and a feeding hole is opened on the base plate and between the four guide rail grooves. The guide rail grooves and the feeding hole both pass through the base plate vertically. A threaded blind hole is opened at the front end of the base plate. The square rod is located in the guide rail groove, and a receiving screw hole is opened at the lower end of the square rod. The screw is installed in the receiving screw hole, and the knob is located below the base plate.

[0010] Preferably, the bolt is installed in the receiving screw hole through the through hole.

[0011] Compared with the prior art, the present invention has the following beneficial effects: By setting a positioning assembly on the worktable, consisting of a base plate, insert plate, L-shaped limiting members, square rod, screw, and knob, the spacing of the four L-shaped limiting members on the positioning assembly can be adjusted to position rubber shock-absorbing pads of different sizes. Positioning the inner corners of the L-shaped limiting members towards the inside allows for the positioning of square rubber shock-absorbing pads of different sizes, while positioning the outer corners of the L-shaped limiting members towards the inside allows for the positioning of circular rubber shock-absorbing pads of different sizes. This effectively solves the problem of poor adaptability of existing devices, avoiding the inability to process rubber shock-absorbing pads of incompatible sizes, preventing loosening or displacement of the shock-absorbing pads during processing, ensuring the accuracy of the punching position, thereby improving the appearance quality and assembly performance of the rubber shock-absorbing pads, reducing product scrap due to positioning deviations, and lowering production costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 A magnified view of point A; Figure 3 This is a schematic diagram showing the positional relationship between the worktable and the positioning component of this utility model; Figure 4 This is a schematic diagram of the structure of the workbench of this utility model; Figure 5 This is a schematic diagram of the structure of the substrate and the insert plate of this utility model; Figure 6 This is a schematic diagram of the disassembled square rod and screw of this utility model.

[0013] In the diagram: 1. Equipment base; 2. Punching assembly; 3. Workbench; 4. Positioning assembly; 5. Support frame; 6. Hydraulic cylinder; 7. Punch structure; 8. Support plate; 9. Bottom bracket; 10. Mounting groove; 11. Slot; 12. Through hole; 13. Base plate; 14. Insert plate; 15. Guide rail groove; 16. Feeding hole; 17. Threaded blind hole; 18. L-shaped limiting component; 19. Square rod; 20. Receiving screw hole; 21. Screw; 22. Knob; 23. Bolt. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, an automatic punching device for rubber shock-absorbing pads includes a base 1, a punching assembly 2 fixedly mounted on the upper end of the base 1, a worktable 3 fixedly mounted on the punching assembly 2, and a positioning assembly 4 fixedly mounted on the worktable 3 by bolts 23. The positioning assembly 4 consists of a base plate 13, an insert plate 14, L-shaped limiting members 18, square rods 19, screws 21, and knobs 22. The insert plate 14 is fixedly mounted on the rear end of the base plate 13. There are four L-shaped limiting members 18 symmetrically placed on the upper end of the base plate 13. There are four square rods 19 fixedly mounted on the lower ends of the four L-shaped limiting members 18, and the square rods 19 are also installed inside the base plate 13. There are four screws 21 fixedly mounted inside the four square rods 19, and four knobs 22 fixedly mounted on the lower ends of the four screws 21. The device is equipped with a positioning assembly 4 consisting of a base plate 13, an insert plate 14, L-shaped limiting members 18, a square rod 19, a screw 21, and a knob 22. Adjusting the spacing of the four L-shaped limiting members 18 on the positioning assembly 4 can position rubber shock-absorbing pads of different sizes. With the inner corners of the L-shaped limiting members 18 facing inward, it can position square rubber shock-absorbing pads of different sizes. With the outer corners of the L-shaped limiting members 18 facing inward, it can position circular rubber shock-absorbing pads of different sizes. This effectively solves the problem of poor adaptability of existing devices, avoids the situation where rubber shock-absorbing pads of incorrect size cannot be processed, and prevents the shock-absorbing pads from loosening or shifting during processing. It ensures the accuracy of the punching position, thereby improving the appearance quality and assembly performance of the rubber shock-absorbing pads, reducing product scrap due to positioning deviations, and lowering production costs.

[0016] Specifically, a through groove is provided on the upper side wall of the equipment base 1. A waste container is placed inside the equipment base 1 and below the through groove. The punching assembly 2 consists of a support frame 5, a hydraulic cylinder 6, and a punch structure 7. The hydraulic cylinder 6 is fixedly installed on the upper front end of the support frame 5, and the punch structure 7 is fixedly installed on the lower end of the piston rod of the hydraulic cylinder 6. The support frame 5 is fixedly installed on the upper end of the equipment base 1 and is located behind the through groove on the upper side wall of the equipment base 1. The worktable 3 is located between the through groove on the upper side wall of the equipment base 1 and the punch structure 7 on the punching assembly 2. The worktable 3 consists of a support plate 8 and a bottom bracket 9. The bottom bracket 9 is fixedly installed on the lower end of the support plate 8 and is also fixedly installed on the lower front end of the support frame 5. On the side, two mounting slots 10 are symmetrically opened at the left and right ends of the support plate 8. A slot 11 is opened on the rear inner wall of the mounting slot 10. The slot 11 is also opened at the left and right ends of the support plate 8. Two through holes 12 are symmetrically opened at the front end of the support plate 8. The through holes 12 are connected to the mounting slots 10. The base plate 13 on the positioning component 4 is installed in the mounting slot 10. The insert plate 14 is inserted into the slot 11. Four guide rail slots 15 are symmetrically opened on the base plate 13. A feeding hole 16 is opened on the base plate 13 and between the four guide rail slots 15. The guide rail slots 15 and the feeding hole 16 both pass through the base plate 13 vertically. A threaded blind hole 17 is opened at the front end of the base plate 13. The square rod 19 is located in the guide rail slot 15. A screw hole 20 is opened at the lower end of the square rod 19. The screw 21 is installed on the base plate 13. Inside the screw hole 20, the knob 22 is located below the base plate 13. The bolt 23 passes through the through hole 12 and is installed inside the screw hole 20. When using this automatic punching device for rubber shock absorbers to punch rubber shock absorbers, the spacing and orientation of the four L-shaped limiting members 18 on the positioning assembly 4 must first be adjusted according to the size and shape of the rubber shock absorber to be processed. During adjustment, first manually rotate and remove the knob 22 and the screw 21. Then, by holding the L-shaped limiting member 18, pull out the square rod 19, which is fixedly connected to it, from the guide rail groove 15 on the base plate 13. If the rubber shock absorber to be processed is a square, then the inner corners of the four L-shaped limiting members 18 should all face inward. If the rubber shock absorber to be processed is a round, then the outer corners of the four L-shaped limiting members 18 should all face inward. Next, place the square rod 19 into the guide rail groove 15, and adjust the spacing of the four L-shaped limiting members 18 to match the size of the square rubber shock-absorbing pad. Then, reinstall the screw 21 into the receiving screw hole 20 at the lower end of the square rod 19 until the rotating knob 22 abuts against the lower end of the base plate 13. At this point, the positions of the square rod 19 and the L-shaped limiting members 18 are firmly fixed. After the positioning assembly 4 is adjusted, place the rubber shock-absorbing pad to be processed on the base plate 13 and ensure that it is tightly fitted with the inner or outer corners of the four L-shaped limiting members 18 to ensure that the rubber shock-absorbing pad is not loose or shifted. Then, start the punching assembly 2, so that the piston rod of the hydraulic cylinder 6 drives the punch structure 7 to move downward. The punch structure 7 passes through the rubber shock-absorbing pad and completes the punching operation.Waste material generated during the punching process falls through the discharge hole 16 on the substrate 13 into the waste container below the through groove in the equipment base 1. After punching is completed, the hydraulic cylinder 6 drives the punch structure 7 to reset, and the processed rubber shock-absorbing pad is removed, thus completing one rubber shock-absorbing pad punching operation.

[0017] In the installation of positioning component 4, the base plate 13 of positioning component 4 is first placed into the mounting groove 10 on the support plate 8 of the workbench 3. At the same time, the insert plate 14 at the rear end of the base plate 13 is precisely inserted into the slot 11 on the inner wall of the rear side of the mounting groove 10 to achieve initial positioning of the base plate 13 to prevent front and rear displacement. Then, the bolt 23 is passed through the through hole 12 at the front end of the support plate 8 and screwed into the threaded blind hole 17 at the front end of the base plate 13. The bolt 23 is tightened to make the base plate 13 firmly fixed in the mounting groove 10, thus completing the installation of positioning component 4. In the disassembly of positioning component 4, the bolt 23 is first rotated in the opposite direction, and then the base plate 13 is grasped and pulled outward to make the insert plate 14 come out of the slot 11 and the base plate 13 is removed from the mounting groove 10, thus completing the disassembly.

[0018] When adjusting the positioning component 4 of the automatic punching device for rubber shock absorbers, in addition to adjusting the spacing and orientation of the four L-shaped limiters 18 to adapt to rubber shock absorbers of different sizes and shapes, it can also adjust the relative positions of the four L-shaped limiters 18 and the loading and unloading holes 16 of the substrate 13 according to the required punching position of the rubber shock absorber. This ensures that after the rubber shock absorber is placed between the four L-shaped limiters 18, the part to be punched can be precisely aligned with the loading hole 16, ensuring punching accuracy. At the same time, the waste generated by punching can fall into the waste container in the equipment base 1 through the loading hole 16.

[0019] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An automatic punching device for rubber shock absorbers, comprising a base (1), wherein a punching assembly (2) is fixedly mounted on the upper end of the base (1), and a workbench (3) is fixedly mounted on the punching assembly (2), characterized in that: The workbench (3) is fixedly installed with a positioning assembly (4) by bolts (23). The positioning assembly (4) consists of a base plate (13), a insert plate (14), an L-shaped limiting member (18), a square rod (19), a screw (21), and a knob (22). The insert plate (14) is fixedly installed at the rear end of the base plate (13). There are four L-shaped limiting members (18) and they are symmetrically placed at the upper end of the base plate (13). There are four square rods (19) and they are fixedly installed at the lower end of the four L-shaped limiting members (18). The square rods (19) are also installed inside the base plate (13). There are four screws (21) and they are installed inside the four square rods (19). There are four knobs (22) and they are fixedly installed at the lower end of the four screws (21).

2. The automatic punching device for rubber shock-absorbing pads according to claim 1, characterized in that: A through groove is provided on the upper side wall of the equipment base (1), and a waste container is placed inside the equipment base (1) and below the through groove.

3. The automatic punching device for rubber shock-absorbing pads according to claim 2, characterized in that: The punching assembly (2) consists of a support frame (5), a hydraulic cylinder (6) and a punch structure (7). The hydraulic cylinder (6) is fixedly installed on the upper front end of the support frame (5). The punch structure (7) is fixedly installed on the lower end of the piston rod of the hydraulic cylinder (6). The support frame (5) is fixedly installed on the upper end of the equipment base (1). The support frame (5) is also located behind the through slot opened on the upper side wall of the equipment base (1).

4. The automatic punching device for rubber shock absorbers according to claim 3, characterized in that: The workbench (3) is located between the through slot on the upper side wall of the equipment base (1) and the punch structure (7) on the punching assembly (2). The workbench (3) is composed of a support plate (8) and a bottom bracket (9). The bottom bracket (9) is fixedly installed at the lower end of the support plate (8) and at the same time fixedly installed at the lower front end of the support frame (5). Two mounting slots (10) are symmetrically opened at the left and right ends of the support plate (8). A slot (11) is opened on the inner rear wall of the mounting slot (10). The slot (11) is opened at both the left and right ends of the support plate (8). Two through holes (12) are symmetrically opened at the front end of the support plate (8). The through holes (12) are connected to the mounting slots (10).

5. The automatic punching device for rubber shock-absorbing pads according to claim 4, characterized in that: The base plate (13) on the positioning component (4) is installed in the mounting groove (10), the insert plate (14) is inserted into the slot (11), four guide rail grooves (15) are symmetrically opened on the base plate (13), and a feeding hole (16) is opened on the base plate (13) and between the four guide rail grooves (15). The guide rail grooves (15) and the feeding hole (16) both pass through the base plate (13) vertically. A threaded blind hole (17) is opened at the front end of the base plate (13), the square rod (19) is located in the guide rail groove (15), and a receiving screw hole (20) is opened at the lower end of the square rod (19). The screw (21) is installed in the receiving screw hole (20), and the knob (22) is located below the base plate (13).

6. The automatic punching device for rubber shock-absorbing pads according to claim 5, characterized in that: The bolt (23) passes through the through hole (12) and is installed in the receiving screw hole (20).

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