Progressive die inclined punching slide mechanism applied to workpiece inclined plane punching

Abstract

The utility model relates to the technical field of progressive dies, in particular to an inclined punching slide mechanism of a progressive die, which is applied to punching of an inclined plane of a workpiece. Comprising a slope guide rail, a slide sliding block in sliding fit with the slope guide rail, an inclined push shovel base which is connected to the slide sliding block in a sliding mode and used for driving the slide sliding block to slide along the slope guide rail, and a punch elastically connected to the front end of the slide sliding block. The punch comprises at least one limiting rod fixedly installed at the front end of the slide sliding block, a buffering pressing block directionally and movably connected to the limiting rod, and a buffering spring arranged on the limiting rod in a sleeving mode and connected between the slide sliding block and the buffering pressing block in an abutting mode. The punching cutter is fixedly installed at the front end of the slide sliding block and exposed in front of the buffering pressing block through elastic contraction of the buffering pressing block, and the moving direction of the punching cutter and the moving direction of the buffering pressing block are both matched with the sliding direction between the slope guide rail and the slide sliding block. By means of the design, it is guaranteed that punching operation is more stable and accurate, and the position precision and the size precision of punching can be better guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous dies, in particular to an oblique punching sliding mechanism of a continuous die used for punching oblique surfaces of workpieces. Background Art

[0002] Progressive die technology holds a significant position in the field of hardware processing; it boasts numerous advantages, providing a strong foundation for efficient, high-precision processing of hardware. Its high inter-process positioning accuracy allows for effective control of both dimensional and shape accuracy during the processing of hardware. During processing, the progressive die requires only a single positioning pass to complete multiple steps within a single stamping stroke. Compared to traditional processing methods, this approach significantly shortens processing time and reduces the time required for inter-process transfer, significantly improving production efficiency. Furthermore, the progressive die's high degree of automation not only reduces manual labor and worker intensity, but also mitigates safety risks to a certain extent. Furthermore, it improves material utilization and further reduces production costs. These advantages have led to its widespread use in hardware processing.

[0003] by Figure 1 Taking the conical metal box-shaped structure shown as an example, its side processing requires the use of a continuous die for drawing, and there are punching requirements on the side design. When using a continuous die to punch its side, a slide mechanism is a commonly used implementation method. However, the traditional slide mechanism has obvious shortcomings. During the side punching process, it lacks the pre-step of buffering and compaction. This lack directly leads to the problem of holes being torn on the side of the metal box during punching. This tearing phenomenon seriously affects product quality, increases scrap rate, and reduces production efficiency. At the same time, in order to repair these quality problems, additional processes and costs are often required, which has an adverse effect on the production and operation of the enterprise. Therefore, improving the slide mechanism of the continuous die side punching and solving the hole tearing problem have become technical problems that need to be solved urgently in the field of hardware processing. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0005] The cam is secured to the front of the slide block and is adapted to engage the slide block when the slide is moved, and the cam is secured to the front of the slide block when the slide block is moved.

[0006] Preferably, a guide through hole matching the limit rod is opened on the buffer pressure block, and a deep hole structure is expanded in the guide through hole. The limit rod slides with the guide through hole, and a limiting part is set at the front end of the limit rod, and the limiting part is limited in the deep hole structure.

[0007] Preferably, one limiting rod is provided, and the cross section of the limiting rod is a polygonal structure.

[0008] Preferably, there are two or more limiting rods, and the cross section of the limiting rods is a circular surface.

[0009] Preferably, a cushion block corresponding to the buffer pressure block is fixedly mounted on the front end of the sliding block, and the buffer spring abuts between the cushion block and the buffer pressure block.

[0010] Preferably, a buffer limiting piece is provided on the cushion block, and the buffer pressing block abuts against the buffer limiting piece to be limited after elastic contraction.

[0011] Preferably, the lower end of the oblique push shovel base and the rear of the sliding block are provided with corresponding inclined surfaces, a T-shaped slide groove is provided on the inclined surface of the oblique push shovel base, and a T-shaped slide block matching the T-shaped slide groove is provided on the inclined surface of the sliding block.

[0012] Preferably, a first blocking block located at the front end of the T-shaped slide is formed on the inclined surface of the oblique push shovel base, and a second blocking block located at the rear end of the T-shaped slide is installed at the rear of the oblique push shovel base, and the sliding block is limited between the first blocking block and the second blocking block.

[0013] Preferably, the upper end of the inclined guide rail has an inclined tapered slide, the lower end of the slider has a tapered slide groove, the inclined guide rail and the slider are slidably fitted together via the tapered slide and the tapered slide, and a hooking slide groove is further provided on the side of the inclined guide rail, and the lower end of the slider is further extended to form a hooking slide that docks with the hooking slide groove;

[0014] The connection mode of the hooking chute and the hooking slider is set as follows:

[0015] During the mold opening process, the oblique push shovel base is set to move upwards by an X distance and then continue to move by a Y distance. When the oblique push shovel base is moved by an X distance, the hooking chute and the hooking slider slide with each other to restrict the sliding of the slider on the inclined guide rail. When the oblique push shovel base continues to move by a Y distance, the hooking chute and the hooking slider separate from each other, and the slider presses against the second blocking block and is driven by the oblique push shovel base to move upward.

[0016] Preferably, a return spring is further provided on the sliding block, and the return spring abuts and cooperates with the first blocking block, so that the sliding block remains abutted and cooperated with the second blocking block after leaving the inclined guide rail.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The combination of the buffer block and the buffer spring allows the workpiece's inclined surface to be buffered and compacted before punching, effectively resolving the hole cracking problem caused by the lack of a buffering and compacting step during punching with a traditional slide mechanism. This improves product quality and reduces scrap. This design ensures a more stable and precise punching operation, better guarantees the positional and dimensional accuracy of the punching, and meets the processing requirements of the workpiece. It is particularly suitable for the processing of similar workpieces such as conical metal boxes, which require high precision. It reduces abnormal stress during the punching process, reduces impact and damage to the mold, thereby extending the mold's service life and reducing production costs. In addition, its stable and reliable punching process reduces rework due to quality issues, making the production process smoother and helping to improve overall production efficiency.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a structural diagram of a conical metal box-shaped product;

[0022] Figure 2 It is a structural diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the utility model after the sliding block and the inclined guide rail are separated;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the explosion structure of the utility model from one viewing angle;

[0026] Figure 6 It is a schematic diagram of the explosion structure of the utility model from another perspective.

[0027] The reference numerals and names in the figures are as follows:

[0028] Inclined guide rail 10, tapered slide 11, hooking slide 12, sliding block 20, T-shaped slide 21, tapered slide 22, hooking slide 23, return spring 24, oblique push shovel base 30, T-shaped slide 31, first blocking block 32, second blocking block 33, punch 40, limiting rod 41, limiting portion 411, buffer pressure block 42, deep hole structure 421, buffer spring 43, punching knife 44, pad 45, buffer limiting member 46. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 2-6 The cam 40 is provided with a plurality of movable members 41 and 42 for moving along the guide rail 10 so as to move the movable members 40 along the guide rail 10.

[0031] When the continuous die oblique punching slide mechanism is working, the oblique pushing shovel base 30 slides in a specific direction under the action of power. Since the oblique pushing shovel base 30 is slidably connected to the slide block 20, the sliding of the oblique pushing shovel base 30 will drive the slide block 20 to slide along the inclined guide rail 10. When the slide block 20 starts to move, the punch 40 connected to the front end moves accordingly, and the buffer pressure block 42, the limit rod 41, the buffer spring 43 and the punching knife 44 in the punch 40 work together. In the initial stage, the buffer pressure block 42 first contacts the inclined surface of the workpiece. As the slide block 20 continues to advance, the buffer spring 43 is compressed, and the buffer pressure block 42 plays a role in buffering and compacting the inclined surface of the workpiece; when the buffer pressure block 42 is compressed to a certain extent, the punching knife 44 emerges from the buffer pressure block 42 and begins to punch the inclined surface of the workpiece. During the entire process, the moving directions of the punching knife 44 and the buffer pressing block 42 are adapted to the sliding direction between the inclined guide rail 10 and the sliding block 20 , thereby ensuring the continuity and accuracy of the movement.

[0032] Therefore, through this setting, the cooperation of the buffer pressure block 42 and the buffer spring 43 can buffer and compact the inclined surface of the workpiece before punching, effectively solving the hole position cracking problem caused by the lack of a buffer compaction step when punching with a traditional slide mechanism, improving product quality and reducing scrap rate; this design ensures that the punching operation is more stable and precise, can better guarantee the position accuracy and dimensional accuracy of the punching, meet the processing requirements of the workpiece, and is especially suitable for the processing of similar workpieces such as conical metal boxes with high precision requirements. It reduces abnormal stress during the punching process, reduces impact and damage to the mold, thereby extending the service life of the mold and reducing production costs. In addition, its stable and reliable punching process reduces rework caused by quality problems, making the production process smoother and helping to improve overall production efficiency.

[0033] See also Figure 5-6 Based on the above embodiment, it is further proposed that a guide through-hole matching the limit rod 41 is provided on the buffer pressure block 42, and a deep hole structure 421 is expanded in the guide through-hole. The limit rod 41 slides in cooperation with the guide through-hole. A limit portion 411 is provided at the front end of the limit rod 41, and the limit portion 411 is confined within the deep hole structure 421. The cooperation between the deep hole structure 421 and the limit portion 411 can effectively limit the displacement range of the limit rod 41, preventing abnormal situations such as excessive displacement or detachment during operation, ensuring the reliability of the buffer compaction and punching operations, reducing processing errors caused by component instability, and also helping to extend the service life of the components and reduce equipment maintenance costs.

[0034] See also Figure 5-6On the basis of the above-mentioned embodiment, it is further proposed that in one embodiment, there is one limiting rod 41, and the cross-section of the limiting rod 41 is a polygonal structure, such as a square structure, which can achieve a directional movable connection with the buffer pressure block 42 with one limiting rod 41. This design is simple and can meet the basic directional requirements while simplifying the structure, reducing costs and assembly difficulty. In another embodiment, there are more than two limiting rods 41, and the cross-section of the limiting rod 41 is a circular surface. Compared with a single limiting rod 41, multiple circular limiting rods 41 can position and support the buffer pressure block 42 from multiple angles, greatly enhancing the stability of the buffer pressure block 42 during movement, thereby ensuring the smoothness and reliability of the entire punching process. It is particularly suitable for production scenarios with higher requirements for processing accuracy and stability.

[0035] See also Figure 4-6 Based on the above embodiment, it is further proposed that a pad 45 corresponding to the buffer pressure block 42 is fixedly installed at the front end of the slide block 20, and the buffer spring 43 abuts between the pad 45 and the buffer pressure block 42, providing a reliable support base for the buffer spring 43, ensuring that it can properly perform its buffering function during operation and maintain stable elastic performance. A buffer limiter 46 is provided on the pad 45, and the buffer pressure block 42 abuts against the buffer limiter 46 to limit its position after elastic contraction. This limit function can accurately control the contraction degree of the buffer pressure block 42, thereby accurately controlling the timing of the punching knife 44 exposure and the punching depth, further improving the accuracy and quality of the punching, while avoiding component damage caused by excessive compression of the buffer pressure block 42 and extending the service life of the mechanism.

[0036] See also Figure 5-6 The cam 20 of the present invention is provided with the support rail 10 of the upper and lower parts of the upper and lower parts of the lower parts of the upper and lower parts of the lower parts of the lower parts, and the support rail 10 is provided with the support rail 10 of the upper and lower parts ...

[0037] See also Figure 2-6 Based on the above embodiment, it is further proposed that a first stop block 32 is formed on the inclined surface of the inclined push shovel base 30, located at the front end of the T-shaped slot 31, and a second stop block 33 is installed at the rear end of the T-shaped slot 31. The slider 20 is restricted between the first stop block 32 and the second stop block 33; this effectively constrains the forward and backward displacement of the slider 20, ensures its stability under the drive of the inclined push shovel base 30, and prevents it from leaving the normal working area due to excessive movement during operation, thereby ensuring the accuracy and reliability of the punching operation. The upper end of the inclined guide rail 10 has an inclined tapered slide 11, and the lower end of the slider 20 has a tapered slot 22. The inclined guide rail 10 and the slider 20 are slidably matched through the tapered slide 11 and the tapered slide. This structure makes the connection between the two more compact and the orientation more accurate, ensures the smooth sliding of the slider 20 on the inclined guide rail 10, and further improves the accuracy of the movement of the entire mechanism.

[0038] A hooking groove 12 is further provided on the side of the inclined guide rail 10, and a hooking slider 23 is further extended from the lower end of the slider 20 to engage with the hooking groove 12; a return spring 24 is also provided on the slider 20, and the return spring 24 abuts and cooperates with the first stop block 32, so that the slider 20 remains abutted and engaged with the second stop block 33 after it is separated from the inclined guide rail 10;

[0039] The connection between the hooking groove 12 and the hooking slider 23 is set as follows:

[0040] During the mold opening process, the oblique pushing shovel base 30 is configured to move upwards by a distance X and then continue to move by a distance Y. When the oblique pushing shovel base 30 is moved by a distance X, the hooking groove 12 and the hooking slider 23 slide in cooperation with each other to restrict the sliding of the slider 20 on the inclined guide rail 10. When the oblique pushing shovel base 30 continues to move by a distance Y, the hooking groove 12 and the hooking slider 23 separate from each other, and the slider 20 presses against the second blocking block 33 and is driven upward by the oblique pushing shovel base 30.

[0041] The coupling of the hooking groove 12 and the hooking block 23 provides an additional constraint on the sliding movement of the slider 20 on the inclined guide rail 10. During the mold opening process, when the inclined push shovel base 30 moves a distance X, this connection effectively prevents the slider 20 from sliding on the inclined guide rail 10, ensuring the stability of the mechanism at that specific stage. When the inclined push shovel base 30 continues to move a distance Y, the hooking groove 12 and the hooking block 23 separate, and the slider 20 abuts against the second stop block 33 and is driven upward by the inclined push shovel base 30. This design enables different movement patterns at different stages of the mold opening process, making the coordination between the various components more precise and orderly, and helping to improve the controllability and stability of the entire mold operation. Furthermore, the return spring 24 on the slider 20 engages with the first stop block 32 to ensure that the slider 20 remains against the second stop block 33 after disengaging from the inclined guide rail 10. This ensures the mechanism's reset and readiness for the next operation during complex movements, helping to improve the stability and reliability of continuous mold operation and reduce the possibility of failure.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A continuous die oblique punching slide mechanism used for punching oblique surfaces of workpieces, characterized in that: The invention comprises an inclined guide rail (10), a sliding block (20) that is slidably matched with the inclined guide rail (10), an inclined push shovel base (30) that is slidably connected to the sliding block (20) and used to drive the sliding block (20) to slide along the inclined guide rail (10), and a punch (40) that is elastically connected to the front end of the sliding block (20), the punch (40) comprising at least one limiting rod (41) fixedly mounted on the front end of the sliding block (20), a directionally movable connecting rod (41) and a guide rod (41) that is fixedly mounted on the front end of the sliding block (20). A buffer pressure block (42), a buffer spring (43) sleeved on the limiting rod (41) and abutting between the sliding block (20) and the buffer pressure block (42), and a punching knife (44) fixedly mounted on the front end of the sliding block (20) and exposed in front of the buffer pressure block (42) by the elastic contraction of the buffer pressure block (42), wherein the moving directions of the punching knife (44) and the buffer pressure block (42) are both adapted to the sliding direction between the inclined guide rail (10) and the sliding block (20).

2. A continuous die oblique punching slide mechanism for punching oblique surfaces of workpieces according to claim 1, characterized in that: A guide through hole matching the limiting rod (41) is provided on the buffer pressure block (42), and a deep hole structure (421) is expanded in the guide through hole. The limiting rod (41) is slidably matched with the guide through hole. A limiting portion (411) is provided at the front end of the limiting rod (41), and the limiting portion (411) is limited in the deep hole structure (421).

3. A continuous die oblique punching slide mechanism for punching oblique surfaces of workpieces according to any one of claims 1-2, characterized in that: One limiting rod (41) is provided, and the cross section of the limiting rod (41) is a polygonal structure.

4. A continuous die oblique punching slide mechanism for punching oblique surfaces of workpieces according to any one of claims 1-2, characterized in that: More than two limiting rods (41) are provided, and the cross section of the limiting rods (41) is a circular surface.

5. The continuous die oblique punching slide mechanism for punching oblique surfaces of workpieces according to claim 1, characterized in that: A cushion block (45) corresponding to the buffer pressure block (42) is fixedly mounted on the front end of the sliding block (20), and a buffer spring (43) abuts between the cushion block (45) and the buffer pressure block (42).

6. A continuous die oblique punching slide mechanism for punching oblique surfaces of workpieces according to claim 5, characterized in that: A buffer limiting member (46) is provided on the cushion block (45), and the buffer pressing block (42) elastically contracts and abuts against the buffer limiting member (46) for limiting.

7. The continuous die oblique punching slide mechanism for punching oblique surfaces of workpieces according to claim 1, characterized in that: The lower end of the oblique push shovel base (30) and the rear of the sliding block (20) are both provided with corresponding inclined surfaces, a T-shaped slide groove (31) is provided on the inclined surface of the oblique push shovel base (30), and a T-shaped slide block (21) matching the T-shaped slide groove (31) is provided on the inclined surface of the sliding block (20).

8. The continuous die oblique punching slide mechanism for punching oblique surfaces of workpieces according to claim 7, characterized in that: A first blocking block (32) is formed on the inclined surface of the oblique push shovel base (30) and is located at the front end of the T-shaped slide groove (31). A second blocking block (33) is installed at the rear end of the T-shaped slide groove (31) at the rear of the oblique push shovel base (30). The sliding block (20) is limited between the first blocking block (32) and the second blocking block (33).

9. A continuous die oblique punching slide mechanism for punching oblique surfaces of workpieces according to claim 8, characterized in that: The upper end of the inclined guide rail (10) has an inclined tapered slide (11), and the lower end of the sliding block (20) has a tapered slide groove (22). The inclined guide rail (10) and the sliding block (20) are slidably matched through the tapered slide (11) and the tapered slide. A hooking slide groove (12) is also provided on the side of the inclined guide rail (10). The lower end of the sliding block (20) is further extended to form a hooking slide groove (23) that is docked with the hooking slide groove (12). The connection mode of the hooking chute (12) and the hooking slider (23) is set as follows: During the mold opening process, the inclined push shovel base (30) is set to move upward by an X distance and then continue to move by a Y distance. When the inclined push shovel base (30) is moved by an X distance, the hooking chute (12) and the hooking slider (23) slide with each other to restrict the sliding block (20) from sliding on the inclined guide rail (10). When the inclined push shovel base (30) continues to be moved by a Y distance, the hooking chute (12) and the hooking slider (23) separate from each other, and the sliding block (20) abuts against the second blocking block (33) and is driven by the inclined push shovel base (30) to move upward.

10. A continuous die oblique punching slide mechanism for punching oblique surfaces of workpieces according to claim 9, characterized in that: A return spring (24) is also provided on the sliding block (20), and the return spring (24) abuts and cooperates with the first blocking block (32), so that the sliding block (20) remains abutted and cooperated with the second blocking block (33) after it is separated from the inclined guide rail (10).

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