Side punching mechanism of continuous die
By designing a step-by-step, multi-directional pressing continuous die side punching mechanism, the problem of workpiece slippage during side punching was solved, achieving high-precision punching and automatic lubrication, and improving product quality.
Patent Information
- Application Number
- CN202511883764.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-03-06
AI Technical Summary
In the prior art, the workpiece is prone to slight slippage during the lateral punching process, which leads to hole position deviation and uneven burrs, affecting the processing accuracy and product consistency.
Design a side punching mechanism for a continuous die, which adopts a step-by-step, multi-directional clamping method. Through the cooperation of vertical and lateral clamping springs, the workpiece is firmly fixed in both vertical and horizontal directions, and the punch and die are automatically lubricated during the punching process.
It effectively eliminates the displacement and deformation of the workpiece during the side punching process, ensures the absolute accuracy of the punching position, reduces quality defects such as burrs, and extends the service life of the punch and die.
Smart Images
Figure CN121607482A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a side punching mechanism for a continuous die. Background Technology
[0002] In progressive die manufacturing, side punching is a common process. The side punching mechanism typically consists of a slide driven by a wedge and a side punch mounted on the slide. To ensure punching quality and prevent the workpiece from moving or deforming under the side punching pressure, the workpiece must be reliably secured before punching.
[0003] In existing technologies, a common method of fixing the workpiece is to set a simple pressure plate or fixing block on one side of the workpiece. However, this method often has the following problems: applying force from only one direction (usually above or to the side) cannot simultaneously constrain the workpiece's displacement in the stamping direction and laterally. Under conditions of large lateral stamping force, the workpiece may still experience slight slippage, leading to problems such as hole position deviation and uneven burrs, which seriously affect processing accuracy and product consistency. Therefore, it is necessary to design corresponding technical solutions to solve the above problems. Summary of the Invention
[0004] To overcome the aforementioned deficiencies of the prior art, the present invention provides a side punching mechanism for a continuous die to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the technical solution of the present invention is to design a side punching mechanism for a continuous die, including an upper die assembly and a lower die assembly; the upper die assembly includes an upper template, a vertical pressure plate, a side pressure plate, a slider, a drive block, and a punch; the upper template has a vertical hole inside; the vertical pressure plate is located below the upper template; the top of the vertical pressure plate has a connecting rod; the top end of the connecting rod extends into the vertical hole and has a radial protruding ring; a vertical clamping spring is connected between the radial protruding ring and the top wall of the vertical hole; the side pressure plate and the slider are slidably connected to the top of the vertical pressure plate; the side pressure plate has a guide hole; a side clamping spring is connected between the slider and the side pressure plate; the drive block is fixedly connected to the bottom of the upper template; the drive block and the slider are connected by a bevel joint; one end of the punch is fixedly connected to the side of the slider; and the other end of the punch extends into the guide hole. The lower die assembly includes a lower template and a die cavity. The die cavity is fixedly connected to the top of the lower template, and the side of the die cavity is provided with a punch hole corresponding to the punch.
[0006] Preferably, the slider has a spring receiving hole on its side, and one end of the lateral compression spring is fixedly connected to the spring receiving hole.
[0007] Preferably, the die cavity has a blanking channel communicating with the punch hole.
[0008] Preferably, the inclined surface of the drive block is provided with a slide bar, and the inclined surface of the slider is provided with a slide groove that slides in cooperation with the slide bar.
[0009] Preferably, both the slide bar and the slide groove have a T-shaped cross-section.
[0010] Preferably, the top of the die is provided with a lubricating oil storage cavity, and the interior of the die is provided with an inclined oil guiding channel. The top wall of the punch hole is provided with an oil injection port. The two ends of the oil guiding channel are respectively connected to the lubricating oil storage cavity and the oil injection port. A spherical groove is provided at the connection between the oil guiding channel and the oil injection port. A sealing bead is movably provided in the spherical groove. The sealing bead is used to close or open the oil injection port, and part of the sealing bead is located inside the punch hole.
[0011] Preferably, a filter element is provided at the connection between the lubricating oil storage cavity and the oil guiding channel.
[0012] The advantages and beneficial effects of this invention are as follows: It provides a side punching mechanism for a continuous die, which has a reasonable structure. Through a step-by-step, multi-directional clamping method, it eliminates the possible displacement and deformation of the workpiece during the side punching process, ensuring the absolute accuracy of the punching position and significantly reducing quality defects such as burrs. Furthermore, it can automatically lubricate the punch and die during the punching process, which helps to extend the service life of the punch and die. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the present invention.
[0014] Figure 2 yes Figure 1 Enlarged view of point A in the middle. Detailed Implementation
[0015] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0016] The specific technical solution of this invention is as follows: In one embodiment, such as Figure 1 and Figure 2As shown, a side punching mechanism for a continuous die includes an upper die assembly and a lower die assembly. The upper die assembly includes an upper template 1, a vertical pressure plate 2, a side pressure plate 3, a slider 4, a drive block 5, and a punch 6. The upper template 1 has a vertical hole 7 inside. The vertical pressure plate 2 is located below the upper template 1. The top of the vertical pressure plate 2 has a connecting rod 8. The top end of the connecting rod 8 extends into the vertical hole 7 and has a radial protruding ring 9. A vertical clamping spring 10 is connected between the radial protruding ring 9 and the top wall of the vertical hole 7. The side pressure plate 3 and the slider 4 are slidably connected to the top of the vertical pressure plate 2. The side pressure plate 3 has a guide hole. A side clamping spring 11 is connected between the slider 4 and the side pressure plate 3. The drive block 5 is fixedly connected to the bottom of the upper template 1, and the drive block 5 and the slider 4 are connected by a bevel joint. One end of the punch 6 is fixedly connected to the side of the slider 4, and the other end of the punch 6 extends into the guide hole. The lower mold assembly includes a lower template 12 and a die 13. The die 13 is fixedly connected to the top of the lower template 12, and the side of the die 13 is provided with a punch hole 14 corresponding to the punch 6.
[0017] The working principle of the side punching mechanism of the continuous die of the present invention, adopting the above scheme, is as follows: In use, the upper template 1 is initiated to descend, causing the vertical pressure plate 2 to descend as well. Once the vertical pressure plate 2 contacts the bottom edge of the workpiece 100, the upper template 1 continues to descend, gradually compressing the vertical clamping spring 10 via the radial protrusion 9 of the connecting rod 8. This causes the vertical pressure plate 2 to press against the bottom edge of the workpiece 100 through the elastic force of the vertical clamping spring 10. As the upper template 1 continues to descend, the sliding block 5 drives the slider 4 to translate, causing the slider 4 to bring the side pressure plate 3 into contact with the side edge of the workpiece 100 and gradually compress the side clamping spring 11. The side pressure plate 3, through the elastic force of the side clamping spring 11, presses the side edge of the workpiece 100 against the die 13. At this point, the workpiece 100 is completely constrained in both the vertical and horizontal directions. As the slider 4 continues to translate, the punch 6, guided by the guide hole, performs lateral punching on the side edge of the workpiece 100. After completion, the upper template 1 is initiated to ascend and reset, returning all components to their initial state.
[0018] In another embodiment, such as Figure 1 As shown, the slider 4 has a spring receiving hole 15 on its side, and one end of the lateral compression spring 11 is fixedly connected to the spring receiving hole 15.
[0019] The above solution ensures that the lateral compression spring 11 can be accommodated in the spring receiving hole 15 after being compressed.
[0020] In another embodiment, such as Figure 1 and Figure 2As shown, the interior of the die 13 is provided with a blanking channel 16 that communicates with the punch hole 14.
[0021] The above solution allows the punching waste to fall through the discharge channel 16.
[0022] In another embodiment, such as Figure 1 As shown, the inclined surface of the drive block 5 is provided with a slide bar 17, and the inclined surface of the slider 4 is provided with a slide groove 18 that slides in cooperation with the slide bar 17.
[0023] The above solution is adopted to achieve the cooperative connection between the drive block 5 and the slider 4.
[0024] In another embodiment, such as Figure 1 As shown, both the slide bar 17 and the slide groove 18 have a T-shaped cross-section.
[0025] The above solution is adopted to improve the stability of the connection between the drive block 5 and the slider 4.
[0026] In another embodiment, such as Figure 1 and Figure 2 As shown, the top of the die 13 is provided with a lubricating oil storage cavity 19, and the interior of the die 13 is provided with an inclined oil guiding channel 20. The top wall of the punch hole 14 is provided with an oil injection port 21. The two ends of the oil guiding channel 20 are respectively connected to the lubricating oil storage cavity 19 and the oil injection port 21. A spherical groove 22 is provided at the connection between the oil guiding channel 20 and the oil injection port 21. A sealing bead 23 is movably provided in the spherical groove 22. The sealing bead 23 is used to close or open the oil injection port 21, and part of the sealing bead 23 is located inside the punch hole 14.
[0027] The above solution is adopted as follows: During the punching process, when the punch 6 moves into the punch hole 14 of the die 13, the outer peripheral wall of the punch 6 will push the sealing bead 23 upward, thereby opening the oil injection port 21. This allows a small amount of lubricating oil in the lubricating oil storage cavity 19 to flow from the oil injection port 21 to the inner wall of the punch hole 14 and the surface of the punch 6 through the oil guide channel 20 under its own gravity, thus achieving automatic lubrication of the punch 6 and the die 13. When the punch 6 moves out of the punch hole 14 of the die 13 and separates from the sealing bead 23, the sealing bead 23 will fall and seal the oil injection port 21, preventing lubricating oil leakage during non-working periods.
[0028] In another embodiment, such as Figure 1 and Figure 2 As shown, a filter element 24 is provided at the connection between the lubricating oil storage cavity 19 and the oil guiding channel 20.
[0029] The above solution is adopted to filter the lubricating oil flowing into the oil guide channel 20.
[0030] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A side action mechanism for a transfer die comprising an upper die assembly and a lower die assembly, characterised in that, The upper die assembly comprises an upper die plate, a vertical pressing plate, a lateral pressing plate, a sliding block, a driving block and a punch, the inside of the upper die plate is provided with a vertical hole, the vertical pressing plate is arranged below the upper die plate, the top of the vertical pressing plate is provided with a connecting rod, the top end of the connecting rod extends into the vertical hole and is provided with a radial protruding ring, a vertical pressing spring is connected between the radial protruding ring and the top wall of the vertical hole, the lateral pressing plate and the sliding block are slidingly connected to the top of the vertical pressing plate, the lateral pressing plate is provided with a guide hole, a lateral pressing spring is connected between the sliding block and the lateral pressing plate, the driving block is fixedly connected to the bottom of the upper die plate, the driving block and the sliding block are connected through a bevel surface, one end of the punch is fixedly connected to the side of the sliding block, and the other end of the punch extends into the guide hole. The lower die assembly comprises a lower die plate and a concave die, the concave die is fixedly connected to the top of the lower die plate, and the side of the concave die is provided with a punch hole corresponding to the punch.
2. A side action mechanism for a progressive die as claimed in claim 1, wherein The side of the sliding block is provided with a spring accommodating hole, and one end of the lateral pressing spring is fixedly connected to the spring accommodating hole.
3. The side action mechanism of a progressive die as claimed in claim 1 wherein, The inside of the concave die is provided with a blanking channel communicating with the punch hole.
4. The matched die, side action mechanism of claim 1 wherein, The bevel surface of the driving block is provided with a sliding strip, and the bevel surface of the sliding block is provided with a sliding groove slidingly matched with the sliding strip.
5. A side action mechanism for a transfer die as defined in claim 4 wherein, The cross sections of the sliding strip and the sliding groove are T-shaped structures.
6. The matched die, side action mechanism of claim 1 wherein, The top of the concave die is provided with a lubricating oil storage cavity, and the inside of the concave die is provided with an inclined oil guiding channel, the top wall of the punch hole is provided with an oil inlet, the two ends of the oil guiding channel are respectively communicated with the lubricating oil storage cavity and the oil inlet, and the communication part of the oil guiding channel and the oil inlet is provided with a spherical groove, a sealing bead is movably arranged in the spherical groove, the sealing bead is used for closing or opening the oil inlet, and the sealing bead is partially arranged in the punch hole.
7. A side action mechanism for a transfer die as defined in claim 6 wherein, The communication part of the lubricating oil storage cavity and the oil guiding channel is provided with a filter.