A high-cleanness cyclone-dust-removal punched die assembly

Abstract

The application discloses a high-cleanness cyclone dust removal punching die assembly used for cleaning a punching die of a punching machine, which comprises an annular air chamber and a support frame, the annular air chamber is installed singly or multiply in the moving direction of the punching die through the support frame, the middle part of the annular air chamber is enclosed into a clean channel, the clean channel provides space for the movement of the punching die, a nozzle is arranged on the inner side wall of the annular air chamber, and the nozzle can spray air flow to clean the punching die in the clean channel. Through the design, the punching die will pass through the clean channel when being prepared for processing or after processing, the nozzle in the clean channel sprays air flow to flush the punching die, the waste debris on the punching die is blown away, and the surface or inner wall of the die part and the punching part is prevented from being scratched or pressed by the debris.

Description

Technical Field

[0001] This invention belongs to the field of machine tool processing, and particularly relates to a high-cleanliness cyclone chip removal punching die assembly. Background Technology

[0002] Punching is a processing method that uses a punching machine to punch holes in the design pattern on the raw material (such as metal sheet). The equipment used for punching includes C-type or gantry presses, hydraulic presses, small pneumatic punch presses, etc. For smaller products, manual presses are also used.

[0003] Currently, when punching hardware parts, metal shavings are generated at the punching location. These shavings tend to adhere to the punch surface and are difficult to remove. During continuous punching, the surface or inner wall of the die parts and punched parts can be scratched or crushed by the shavings, affecting the appearance quality of the parts. This appearance quality problem is difficult to solve with simple grinding and polishing, making rework difficult and sometimes even impossible, increasing production costs. Therefore, there is a need to provide a high-cleanliness cyclone chip removal punching die assembly. Summary of the Invention

[0004] The purpose of this invention is to provide a high-purity cyclone chip removal punching die assembly to solve the problem of metal chips generated at the punching part when punching hardware parts. These metal chips easily adhere to the punch surface and are difficult to remove. During continuous punching, the die parts and the surface or inner wall of the punched parts are easily scratched or crushed by the chips, affecting the appearance quality of the parts. This appearance quality problem is difficult to solve by simple grinding and polishing, and the rework is difficult. In severe cases, it is even impossible to repair, which increases the technical problem of production costs.

[0005] To achieve the above objectives, the specific technical solution of the present invention is as follows:

[0006] A high-cleanliness cyclone chip removal punching die assembly is provided for cleaning punching dies of punching machines. It includes an annular air chamber and a support frame. One or more annular air chambers are mounted on the support frame in the direction of movement of the punching die. A clean channel is formed in the center of the annular air chamber, providing space for the movement of the punching die. Nozzles are provided on the inner wall of the annular air chamber, and these nozzles spray airflow to clean the punching die within the clean channel. With this design, the punching die passes through the clean channel during preparation for or completion of processing. The airflow from the nozzles in the clean channel washes away waste debris from the punching die, preventing scratches or damage to the surface or inner wall of the die parts and punched components from debris.

[0007] Furthermore, the punching die, annular air chamber, and clean passage are coaxially arranged. The nozzles are evenly arranged in a circumferential array on the inner wall of the annular air chamber, and an air inlet is provided on the outer wall of the annular air chamber. The air inlet is used to connect to an air source pipeline to supply air to the nozzles. With this design, when the punching die moves up and down, the airflow from the nozzles around it is more uniform, resulting in a more thorough cleaning of the punching die.

[0008] Furthermore, the annular air chamber includes an upward-blowing air chamber, wherein the nozzles installed in the upward-blowing air chamber are offset upwards by 20°-60° relative to the horizontal direction. With this design, the nozzles on the upward-blowing air chamber blow obliquely upwards, blowing away the debris adhering to the punching die that is easily detached by the upward airflow.

[0009] Furthermore, the annular air chamber includes a horizontal blowing air chamber, and the nozzles installed in the horizontal blowing air chamber are horizontal. With this design, the nozzles on the horizontal blowing air chamber blow out at an angle, blowing away the debris that is easily detached from the punching die by the parallel airflow.

[0010] Furthermore, the annular air chamber includes a down-blowing air chamber, wherein the nozzles installed in the down-blowing air chamber are offset downwards by 20°-60° relative to the horizontal direction. With this design, the nozzles on the down-blowing air chamber blow downwards at an angle, blowing away the debris adhering to the punching die that is easily detached by the downward airflow.

[0011] Furthermore, the annular air chamber includes a side-blowing air chamber, in which the nozzles are offset downwards at an angle relative to the vertical direction. With this design, all the nozzles in the side-blowing air chamber are vertically offset at the same angle. When the nozzles are simultaneously activated, a rotating airflow is generated near the inner wall of the side-blowing air chamber. The higher the gas velocity, the lower the pressure, which draws the waste debris blown off by the upper nozzles towards the inner wall, facilitating the debris's fall into the dust collection box below.

[0012] Furthermore, at least one of each of the upward-blowing, horizontal-blowing, downward-blowing, and side-blowing air chambers is provided. This design, with at least one of each type of annular air chamber arranged sequentially according to the downward movement direction of the punching die—the upward-blowing, horizontal-blowing, downward-blowing, and side-blowing air chambers—ensures that every angle of the punching die is thoroughly cleaned.

[0013] Furthermore, it also includes a dust collection box, which is installed below the bottommost annular air chamber. The dust collection box includes a large neck and a small neck. The large neck is located at the end of the dust collection box closest to the annular air chamber, and its cross-sectional area is not smaller than that of the clean passage. The small neck is located at the end of the dust collection box furthest from the annular air chamber, and its cross-sectional area is not larger than that of the clean passage. The outer edge of the small neck has an outward-flared edge. The dust collection box also has an air outlet, which is connected to a negative pressure air source to discharge the waste collected by the dust collection box. With this design, the large neck is on top and the small neck is on the bottom, allowing waste debris drawn towards the inner wall by the side-blowing air chamber to fall smoothly into the dust collection box. The air outlet of the dust collection box is connected to a pipe to suck up the debris inside the dust collection box. The outward-flared edge design of the small neck prevents the waste debris collected in the dust collection box from flying out when it is blown by the airflow.

[0014] Furthermore, it also includes a blowpipe, which is installed above the punching machine's worktable, with the air outlet direction of the blowpipe matching the punching position of the worktable. The blowpipe is used to blow away any waste material that has fallen onto the punching machine's worktable and not been collected by the dust collection box. This design ensures that debris from the punching die is not blown onto the worktable.

[0015] Furthermore, the frame includes a mounting platform and elastic legs. The mounting platform has a slot in the middle to allow the punching die to move up and down. The annular air chamber is fixedly installed below the mounting platform. The elastic legs elastically support the mounting platform and the punching machine's worktable. Each elastic leg includes an inner tube, an outer tube, and a spring. The inner tube is installed inside the outer tube, and the spring is sleeved on the inner tube. A boss is also provided on the inner tube. The lower end of the spring abuts against the boss, and the upper end of the spring abuts against the bottom surface of the outer tube. The elastic legs provide more downward space after the punching machine's movable arm abuts against the mounting platform. With this design, when the punching die is fully extended from the cleanroom, the punching machine's movable arm abuts against the mounting platform, applying pressure to the frame. At this time, the spring is compressed, the elastic legs retract, and the frame drives the annular air chamber mounted on it to move downward, increasing the vertical movement space of the punching die.

[0016] The beneficial effects of this invention are as follows: When the punching die is being prepared for processing or has been processed, the punching die will pass through a clean channel. The nozzles in the clean channel spray air to flush the punching die, blowing away the waste debris on the punching die and preventing the die parts and the surface or inner wall of the punched parts from being scratched or crushed by debris. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall front structure of the present invention when installed with a punching machine;

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of Part A;

[0019] Figure 3 This is a schematic diagram of the overall side structure of the present invention when installed with a punching machine;

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of Part B;

[0021] Figure 5 This is a schematic diagram of the frame and annular air chamber structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the annular air chamber and dust collection box structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the annular air chamber and dust collection box structure of the present invention.

[0024] Figure 8 This is a schematic diagram of the annular air chamber structure of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of Example 2;

[0026] Figure 10 The attached figure for Example 4 shows the direction of air intake (arrows represent the direction of air intake, and the number of arrows represents the gas flow rate per unit).

[0027] The markings in the diagram are as follows: 1. Punching machine; 2. Punching die; 3. Annular air chamber; 4. Support frame; 5. Clean passage; 6. Inner wall; 7. Outer wall; 8. Nozzle; 9. Air inlet; 10. Upward-blowing air chamber; 11. Horizontal-blowing air chamber; 12. Downward-blowing air chamber; 13. Side-blowing air chamber; 14. Dust collection box; 15. Large neck; 16. Small neck; 17. Air outlet; 18. Blowpipe; 19. Mounting platform; 20. Flexible support leg; 21. Slot; 22. Inner tube; 23. Outer tube; 24. Spring; 25. Workbench; 26. Movable arm. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0029] like Figures 1 to 8 As shown

[0030] Example 1

[0031] A cleaning device for a punching die 2 is provided for cleaning the punching die 2 of a punching machine 1. It includes an annular air chamber 3 and a support frame 4. One or more annular air chambers 3 are installed in the direction of movement of the punching die 2 via the support frame 4. The middle of the annular air chamber 3 forms a cleaning channel 5, which provides space for the movement of the punching die. The inner sidewall 6 of the annular air chamber 3 is provided with nozzles 8, which can spray airflow to clean the punching die in the cleaning channel 5.

[0032] The above embodiments are implemented as follows:

[0033] The punching die moves up and down during the punching operation, and the annular air chamber 3 is set in the movement path of the punching die. The clean channel 5 formed by the annular air chamber 3 serves as the passage for the punching die. The nozzles 8 in the clean channel 5 spray gas to blow away the waste material debris adhering to the punching die.

[0034] Example 2

[0035] The punching die 2, the annular air chamber 3 and the clean channel 5 are coaxially arranged. The nozzles 8 are evenly arranged in a circumferential array on the inner side wall 6 of the annular air chamber 3. An air inlet 9 is provided on the outer side wall 7 of the annular air chamber 3. The air inlet 9 is used to connect to the air source pipeline to supply air to the nozzles 8.

[0036] The annular air chamber 3 includes an upward-blowing air chamber 10, and the nozzle 8 installed in the upward-blowing air chamber 10 is offset upward by 20°-60° with the horizontal direction as the reference.

[0037] The annular air chamber 3 includes a horizontal blowing air chamber 11, and the nozzle 8 installed in the horizontal blowing air chamber 11 is horizontal.

[0038] The annular air chamber 3 includes a down-blowing air chamber 12, and the nozzle 8 installed in the down-blowing air chamber 12 is offset downward by 20°-60° with the horizontal direction as the reference.

[0039] The annular air chamber 3 includes a side-blowing air chamber 13, and the nozzle 8 installed in the side-blowing air chamber 13 is offset downward at an angle of 20°-60° with the vertical direction as the reference.

[0040] At least one of each of the following types of air chambers is provided: upward-blowing air chamber 10, horizontal-blowing air chamber 11, downward-blowing air chamber 12, and side-blowing air chamber 13.

[0041] It also includes a dust collection box 14, which is installed below the bottom annular air chamber 3. The dust collection box 14 includes a large neck 15 and a small neck 16. The large neck 15 is located at the end of the dust collection box 14 near the annular air chamber 3, and the cross-section of the large neck 15 is not smaller than the clean channel 5. The small neck 16 is located at the end of the dust collection box 14 away from the annular air chamber 3, and the cross-sectional area of ​​the small neck 16 is not larger than the clean channel 5. The outer edge of the small neck 16 is provided with an outward flange. The dust collection box 14 is also provided with an air outlet 17, which is connected to a negative pressure air source for discharging the waste collected by the dust collection box 14.

[0042] It also includes a purge pipe 18, which is installed above the worktable 25 of the punching machine 1, and the air outlet direction of the purge pipe 18 is matched with the punching position of the worktable 25 of the punching machine 1.

[0043] The frame includes a mounting platform 19 and elastic support legs 20. The mounting platform 19 has a slot 21 in the middle to allow the punching die to move up and down. The annular air chamber 3 is fixedly installed below the mounting platform 19. The elastic support legs 20 elastically support the mounting platform 19 and the worktable 25 of the punching machine 1. The elastic support legs 20 include an inner tube 22, an outer tube 23 and a spring 24. The inner tube 22 is installed inside the outer tube 23. The spring 24 is sleeved on the inner tube 22. The inner tube is also provided with a boss. The lower end of the spring 24 abuts against the boss 23, and the upper end of the spring 24 abuts against the bottom surface of the outer tube 19. The elastic support legs 20 provide more descent space after the moving arm 26 of the punching machine 1 abuts against the mounting platform 19.

[0044] The above embodiments are implemented as follows:

[0045] The annular air chamber 3 is arranged in the following order: upward-blowing air chamber 10, horizontal-blowing air chamber 11, downward-blowing air chamber 12, and side-blowing air chamber 13. A dust collection box 14 is installed below the side-blowing air chamber 13. During the downward movement of the punching die, each part of the punching die that completely passes through the cleaning pipe is sequentially swept by upward air, horizontal air, and downward air. At this time, the waste material and debris on the punching die are swept away. The swept-away waste material and debris then fall down through the side-blowing air chamber 13. The nozzles 8 in the side-blowing air chamber 13 are all vertically offset at the same angle. When the nozzles 8 are simultaneously opened... A rotating airflow is generated near the inner wall 6 of the side-blowing air chamber 13. The higher the gas velocity, the lower the pressure. This draws the waste debris blown off by the upper nozzle 8 toward the inner wall 6. The waste debris continues to fall and first passes through the large neck 15 of the dust collection box 14. The opening of the small neck 16 of the dust collection box 14 is smaller than that of the large neck 15. The waste debris is intercepted inside the dust collection box 14 by the small neck 16. The air outlet 17 of the dust collection box 14 is connected to a negative pressure pipe. The waste debris inside the dust collection box 14 is sucked away by the negative pressure from the air outlet 17. A small portion of the waste debris falling from the small neck 16 is blown away by the blow pipe 18.

[0046] When the punching die is fully extended from the clean passage 5, and the punching die still needs to move downward, the movable arm 26 of the punching machine 1 abuts against the mounting platform 19 to apply pressure to the frame. At this time, the spring 24 will be compressed, the elastic support leg 20 will retract, and the frame will drive the annular air chamber 3 installed on the frame to move downward, increasing the vertical movement space of the punching die.

[0047] Example 3

[0048] like Figure 9 As shown, the upward-blowing air chamber 10, the horizontal-blowing air chamber 11, the downward-blowing air chamber 12, and the side-blowing air chamber 13 are arranged in sequence but their sizes decrease in that order, causing the clean passage 5 to gradually shrink. The dust collection box 14, except for the large neck opening 15 which is adapted to the size of the side-blowing air chamber 13, has the same small diameter opening size. The shrinkage of the side-blowing air chamber 13 increases the airflow's ability to carry waste debris when it generates rotating airflow, making it easier for the waste debris blown off the punching die to fall into the dust collection box 14.

[0049] Example 4

[0050] like Figure 10 As shown, the flexible support leg 20 is designed so that after the movable arm 26 of the punching machine 1 abuts against the mounting table 19, the movable arm 26 can still move downward for a short period of time. During this period of time, the upper end of the clean channel 5 is blocked by the movable arm 16, leaving only the lower end to allow gas to flow, and the unit flow rate of the gas drawn in at the lower end increases. At this time, the negative pressure air source connected to the dust collection box 14 can more powerfully suck out the waste material in the dust collection box 14.

[0051] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A high-cleanliness cyclone chip removal punching die assembly for cleaning the punching die (2) of a punching machine (1), characterized in that, It includes an annular air chamber (3) and a support frame (4). The annular air chamber (3) is installed in one or more directions of the punching die (2) via the support frame (4). The middle part of the annular air chamber (3) forms a clean channel (5). The clean channel (5) provides space for the movement of the punching die. The inner sidewall (6) of the annular air chamber (3) is provided with a nozzle (8). The nozzle (8) can spray air to clean the punching die in the clean channel (5). The punching die (2), the annular air chamber (3) and the clean channel (5) are coaxially arranged. The nozzle (8) is evenly arranged in a circumferential array on the inner sidewall (6) of the annular air chamber (3). An air inlet (9) is provided on the outer sidewall (7) of the annular air chamber (3). The air inlet (9) is used to connect with the air source pipeline to supply air to the nozzle (8). It also includes a dust collection box (14), which is installed below the bottom annular air chamber (3). The dust collection box (14) includes a large neck (15) and a small neck (16). The large neck (15) is located at one end of the dust collection box (14) near the annular air chamber (3), and the cross-section of the large neck (15) is not smaller than that of the clean channel (5). The small neck (16) is located at one end of the dust collection box (14) away from the annular air chamber (3), and the cross-sectional area of ​​the small neck (16) is not larger than that of the clean channel (5). The outer edge of the small neck (16) is provided with an outward flange. The dust collection box (14) is also provided with an air outlet (17), which is connected to a negative pressure air source for discharging the waste collected by the dust collection box (14).

2. The high-purity cyclone chip removal punching die assembly according to claim 1, characterized in that, The annular air chamber (3) includes an upward-blowing air chamber (10), and the nozzle (8) installed in the upward-blowing air chamber (10) is offset upward by 20°-60° with the horizontal direction as the reference.

3. The high-purity cyclone chip removal punching die assembly according to claim 2, characterized in that, The annular air chamber (3) includes a horizontal air chamber (11), and the nozzle (8) installed in the horizontal air chamber (11) is horizontal.

4. The high-purity cyclone chip removal punching die assembly according to claim 3, characterized in that, The annular air chamber (3) includes a downblown air chamber (12), and the nozzle (8) installed in the downblown air chamber (12) is offset downward by 20°-60° with the horizontal direction as the reference.

5. The high-purity cyclone chip removal punching die assembly according to claim 4, characterized in that, The annular air chamber (3) includes a side-blowing air chamber (13), and the nozzle (8) installed in the side-blowing air chamber (13) is offset downwards with the vertical direction as a reference.

6. The high-purity cyclone chip removal punching die assembly according to claim 5, characterized in that, At least one of each of the following types of air chambers is provided: upward blowing type air chamber (10), horizontal blowing type air chamber (11), downward blowing type air chamber (12), and side blowing type air chamber (13).

7. The high-purity cyclone chip removal punching die assembly according to claim 1, characterized in that, It also includes a purge pipe (18), which is installed above the worktable (25) of the punching machine (1), and the air outlet direction of the purge pipe (18) is matched with the punching position of the worktable (25) of the punching machine (1).

8. The high-purity cyclone chip removal punching die assembly according to claim 1, characterized in that, The support frame (4) includes a mounting platform (19) and elastic legs (20). The mounting platform (19) has a slot (21) in the middle for the punching die to move up and down. The annular air chamber (3) is fixedly installed below the mounting platform (19). The elastic legs (20) elastically support the mounting platform (19) and the worktable (25) of the punching machine (1). The elastic legs (20) include an inner tube (22), an outer tube (23) and a spring. (24) The inner tube (22) is installed inside the outer tube (23). The spring (24) is sleeved on the inner tube (22). The inner tube (22) is also provided with a boss. The lower end of the spring (24) abuts against the boss. The upper end of the spring (24) abuts against the bottom surface of the outer tube (23). The elastic support leg (20) provides more descent space after the moving arm (26) of the punching machine (1) abuts against the mounting platform (19).

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