A protective cover for a stamping device of automotive parts and its usage method

Abstract

The present invention discloses a protective cover for a stamping device of automotive parts, including a stamping device and a protective cover. The stamping device includes a connecting seat, on the upper surface of which a base is fixedly connected. On the front surface of the base, a processing table is fixedly connected. On the upper surface of the base, a working frame is fixedly connected. A stamping seat is slidably connected to the front surface of the working frame. The protective cover is located at the bottom of the stamping seat. The protective cover includes a first safety cylinder, on the upper surface of which a first connecting seat is fixedly connected. A sliding groove is provided at a position near the bottom on the outer surface of the first safety cylinder, and a fastening mechanism is arranged on the outer surface of the first safety cylinder. In the present invention, the second safety cylinder can slide between the first connecting ring and the second connecting ring, so as to adjust the working position of the stamping head. After the second connecting ring contacts the processing table, the second connecting ring will rise and cooperate with the stamping head to perform stamping work, improving the safety of device use and indirectly improving the working efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile part processing, and specifically relates to a protective cover for an automobile part stamping device and a using method thereof. Background Art

[0002] Automobile parts are the various units that make up the overall automobile parts processing and products serving automobile parts processing. They are the foundation of the automobile industry and necessary factors to support the sustainable and healthy development of the automobile industry. Most of the existing automobile parts are produced by the combination of stamping equipment and molds.

[0003] However, stamping equipment is a device used to apply external forces to plates, strips, pipes, profiles, etc., so as to cause plastic deformation or separation, thereby obtaining workpieces with the required shapes and sizes. However, the protective covers in the existing equipment are too simple, and it is not convenient to place the protective cover during stamping. As a result, some workers will not use the protective cover when operating the machine, which will hide potential safety hazards during work.

[0004] In the prior art, the application number is 202010841545.0, which discloses a protective cover for an automobile part stamping device, including a base, a machine body and a protective cover. The machine body is installed on the base, the protective cover is installed at the lower end of the machine body. The lower end of the machine body has a fixing part, and the fixing part has a fixing portion. One end of the protective cover has a fixing rod, and the other end has a fixing block. The fixing rod is placed in the middle of the fixing portion. A limiting member is sleeved outside the fixing rod, and the limiting member is located between the fixing portion and the fixing rod. The limiting member has a supporting portion, and the supporting portion has a plain bearing. The plain bearing is located at the lower end of the fixing portion. The fixing rod also has a nut, and the nut is at the lower end of the supporting portion. This protective cover has a simple structure and ingenious design, can rotate conveniently, is convenient for workers to use in time, and is very convenient to open, facilitating the operation of workers.

[0005] In the above patent application, although the protective cover plays a protective role, it does not improve the use efficiency. During the use process, it is necessary to sequentially open the protective cover, place the equipment, and then perform stamping. After the stamping is completed, it is still necessary to open the protective cover. There are additional closing and opening processes in the original working process, indirectly reducing the processing efficiency.

[0006] Therefore, we propose a protective cover for an automobile part stamping device and a using method thereof to solve the problems raised above. Summary of the Invention

[0007] The purpose of the present invention is to provide a protective cover for a stamping device of automotive parts and its usage method, so as to solve the problem proposed in the above background technology that when the stamping machine stamps the raw materials of automotive parts, the protective cover needs to be opened successively during use, the equipment is placed, and then stamping is carried out. After the stamping is completed, the protective cover still needs to be opened, and the closing and opening processes are added in the original working process, indirectly reducing the processing efficiency.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A protective cover for a stamping device of automotive parts, including a stamping device and a protective cover. The stamping device includes a connecting seat, on the upper surface of which a base is fixedly connected. On the front surface of the base, a processing table is fixedly connected. On the upper surface of the base, a working frame is fixedly connected. A stamping seat is slidably connected to the front surface of the working frame. The protective cover is located at the bottom of the stamping seat. The protective cover includes a first safety cylinder, on the upper surface of which a first connecting seat is fixedly connected. A sliding groove is opened at a position near the bottom of the outer surface of the first safety cylinder. A fastening mechanism is arranged on the outer surface of the first safety cylinder. A first connecting ring and a second connecting ring are fixedly connected to the inner surface of the first safety cylinder. A limiting seat is fixedly connected between the first connecting ring and the second connecting ring. A limiting rod is vertically fixedly connected to the inner surface of the limiting seat between the first connecting ring and the second connecting ring. A sliding sleeve is sleeved on the outer surface of the limiting rod. A spring is arranged between the sliding sleeve and the first connecting ring. A sliding ring is fixedly connected to the sliding sleeve at the position of the inner surface of the first connecting ring. A second safety cylinder is arranged inside the first safety cylinder, and a second connecting seat is fixedly connected to the upper surface of the second safety cylinder.

[0009] The stamping head of the stamping seat is protected by the first safety cylinder and the second safety cylinder. At the same time, the second safety cylinder can slide between the first connecting ring and the second connecting ring, so as to adjust the working position of the stamping head. When the second connecting ring contacts the processing table, the second connecting ring will rise and cooperate with the stamping head to carry out stamping work, improving the safety of device use and indirectly improving the working efficiency of the device. The first safety cylinder wraps the top of the stamping head, playing a role in dust prevention and protection. The first connecting seat and the stamping seat are installed by multiple fastening bolts, and the installation convenience is good. At the same time, the second connecting seat and the sliding ring are installed, and the installation is convenient, which is conducive to the maintenance work of the equipment and indirectly improves the maintenance convenience of the equipment. By holding the handle and driving the sliding sleeve to rise, the sliding ring and the second safety cylinder at its bottom are driven to rise. Then, the rotating column of the fastening mechanism is rotated. The rotating column is engaged with the first fixing seat and fixed by inserting a pin shaft, so that the rotating column supports the handle, preventing the bottom height of the second safety cylinder from being lower than the stamping head, facilitating the stamping work of the stamping head and improving the protection effect of the protective cover.

[0010] Preferably, a lifting component is provided on the inner surface of the working frame, and the lifting component is matched with the position of the stamping seat. The stamping seat is controlled by the lifting component to lift and lower, so as to perform the lifting work of the device and facilitate stamping.

[0011] Preferably, the first safety cylinder is arranged in a barrel shape, the first connecting seat is arranged in a ring shape, and the first connecting seat is fixedly connected to the lower surface of the stamping seat through a plurality of fastening bolts. The top of the stamping head is wrapped by the first safety cylinder to play a role in dust prevention and protection. Among them, the first connecting seat and the stamping seat are installed through a plurality of fastening bolts, and the installation convenience is good.

[0012] Preferably, the fastening mechanism includes a first fixed seat and a second fixed seat. A rotating column is rotatably connected to the front surface of the second fixed seat in an embedded manner. The rotating column is engaged with the first fixed seat. The first fixed seat is provided with a pin shaft. The first fixed seat and the second fixed seat are arranged in parallel. The rotating column and the first fixed seat are inserted and connected through the pin shaft. By providing the first fixed seat and the second fixed seat, when processing larger parts, it is necessary to lift the second safety cylinder to prevent the second safety cylinder from directly contacting the uneven parts, resulting in damage to the second safety cylinder. Therefore, lift the handle and place the handle on the rotating column to play a supporting effect.

[0013] Preferably, the first connecting ring is located at the top of the second connecting ring. The sliding groove is communicated with the limiting seat. A limiting groove is formed on the inner surface of the limiting seat. The outer surface of the sliding sleeve is slidably connected to the inner surface of the limiting groove. The limiting groove defines the working trajectory of the sliding sleeve. The sliding sleeve drives the sliding ring to slide, thereby driving the second safety cylinder to lift and lower.

[0014] Preferably, the spring is sleeved on the outer surface of the limiting rod, and the spring is in a compressed state. A handle is fixedly connected to the outer surface of the sliding sleeve. The handle is matched with the position of the sliding groove. The rotating column is matched with the position of the handle. The setting of the spring plays a role in resetting, that is, the spring pushes the sliding sleeve to descend, thereby driving the sliding ring and the second safety cylinder at its bottom to descend, and completing the effect of completely surrounding the stamping head.

[0015] Preferably, a plurality of fixing columns are fixedly connected circumferentially between the first connecting ring and the second connecting ring. The sliding ring is arranged in a ring shape, and the sliding ring is slidably connected to the outer surfaces of the plurality of fixing columns. The setting of the plurality of fixing columns plays a role in stably cooperating with the sliding ring to lift and lower, ensuring that the second safety cylinder slides tightly with the inner surface of the second connecting ring.

[0016] Preferably, the second connecting seat is arranged in a ring shape, and the second connecting seat is fixedly connected to the sliding ring through a plurality of fastening bolts. The outer surface of the second safety cylinder is slidably connected tightly with the inner surface of the second connecting ring.

[0017] A method for using a protective cover of a stamping device for automotive parts, comprising the following steps:

[0018] S1. Place the automotive parts to be processed on the processing table, and then start the stamping work, that is, start the lifting component to drive the stamping seat to descend, that is, drive the stamping head to stamp the automotive parts to be processed, and complete the pre-installation work.

[0019] S2. During the stamping process, since the second safety cylinder is located at the bottom of the stamping head, the second safety cylinder first contacts the processing table, and then the second safety cylinder slides along the inner surface of the second connecting ring, thereby driving the sliding ring to rise, so that the stamping head contacts the automotive parts to be processed, so as to stamp the automotive parts to be processed. During the stamping process, the second safety cylinder provides safety protection for the internal stamping parts.

[0020] S3. After the work is completed, the spring pushes the sliding sleeve to descend, thereby driving the sliding ring and the second safety cylinder at its bottom to descend, and completing the full surrounding effect on the stamping head.

[0021] S4. For larger parts, hold the handle to drive the sliding sleeve to rise, thereby driving the sliding ring and the second safety cylinder at its bottom to rise. Then rotate the rotating column of the fastening mechanism, engage the rotating column with the first fixed seat, and fix it by inserting a pin shaft, so that the rotating column supports the handle, preventing the bottom height of the second safety cylinder from being lower than the stamping head, and facilitating the stamping work of the stamping head.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. Protect the stamping head of the stamping seat through the first safety cylinder and the second safety cylinder. At the same time, the second safety cylinder can slide between the first connecting ring and the second connecting ring, thereby adjusting the working position of the stamping head. After the second connecting ring contacts the processing table, the second connecting ring will rise, cooperate with the stamping head to perform stamping work, improve the safety of device use, and indirectly improve the working efficiency of the device.

[0024] 2. Hold the handle to drive the sliding sleeve to rise, thereby driving the sliding ring and the second safety cylinder at its bottom to rise. Then rotate the rotating column of the fastening mechanism, engage the rotating column with the first fixed seat, and fix it by inserting a pin shaft, so that the rotating column supports the handle, preventing the bottom height of the second safety cylinder from being lower than the stamping head, and facilitating the stamping work of the stamping head, improving the protection effect of the protective cover.

[0025] 3. Its equipment is easy to install and maintain. That is, the top of the stamping head is wrapped by the first safety cylinder, which plays a role in dust prevention and protection. The first connecting seat and the stamping seat are installed through multiple fastening bolts, with good installation convenience. At the same time, the second connecting seat and the sliding ring are installed, which is convenient for installation and easy for the equipment to carry out maintenance work, indirectly improving the maintenance convenience of the equipment. Brief Description of the Drawings

[0026] Figure 1 is a three-dimensional view of the protective cover of a stamping equipment for automotive parts according to the present invention;

[0027] Figure 2 is a side view of the protective cover of a stamping equipment for automotive parts according to the present invention;

[0028] Figure 3 is a structural schematic diagram of the protective cover of a stamping equipment for automotive parts according to the present invention;

[0029] Figure 4 is a structural schematic diagram of the fastening mechanism of the protective cover of a stamping equipment for automotive parts according to the present invention;

[0030] Figure 5 is a structural schematic diagram of the first connecting ring of the protective cover of a stamping equipment for automotive parts according to the present invention;

[0031] Figure 6 is a structural schematic diagram of the limit seat of the protective cover of a stamping equipment for automotive parts according to the present invention;

[0032] Figure 7 is a sectional structural schematic diagram of the protective cover of a stamping equipment for automotive parts according to the present invention;

[0033] Figure 8 is Figure 7 the enlarged view at A in

[0034] In the figure:

[0035] 1. Connecting seat; 11. Base; 12. Processing table; 13. Working frame; 14. Stamping seat; 15. Lifting component; 2. First safety cylinder; 21. First connecting seat; 22. Sliding groove; 23. First fixed seat; 24. Second fixed seat; 25. Rotating column; 26. Pin shaft; 3. First connecting ring; 30. Fixed column; 31. Second connecting ring; 32. Limit seat; 33. Limit rod; 34. Sliding sleeve; 35. Handle; 36. Sliding ring; 37. Second connecting seat; 38. Second safety cylinder; 39. Spring. Detailed Description of the Invention

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0037] Refer to Figures 1-8 As shown: A protective cover for an automotive parts stamping device includes a stamping device and a protective cover. The stamping device includes a connecting seat 1. On the upper surface of the connecting seat 1, a base 11 is fixedly connected. On the front surface of the base 11, a processing table 12 is fixedly connected. On the upper surface of the base 11, a working frame 13 is fixedly connected. A stamping seat 14 is slidably connected to the front surface of the working frame 13. The protective cover is located at the bottom of the stamping seat 14. Among them, the connecting seat 1, the base 11, the processing table 12, the working frame 13, and the stamping seat 14 are the main bodies of the automotive parts stamping device.

[0038] The protective cover includes a first safety cylinder 2. On the upper surface of the first safety cylinder 2, a first connecting seat 21 is fixedly connected. A sliding groove 22 is opened at a position near the bottom of the outer surface of the first safety cylinder 2. A fastening mechanism is arranged on the outer surface of the first safety cylinder 2. A first connecting ring 3 and a second connecting ring 31 are fixedly connected to the inner surface of the first safety cylinder 2. A limiting seat 32 is fixedly connected between the first connecting ring 3 and the second connecting ring 31. A limiting rod 33 is vertically fixedly connected to the inner surface of the limiting seat 32 between the first connecting ring 3 and the second connecting ring 31. A sliding sleeve 34 is sleeved on the outer surface of the limiting rod 33. A spring 39 is arranged between the sliding sleeve 34 and the first connecting ring 3. A sliding ring 36 is fixedly connected to the sliding sleeve 34 at the position of the inner surface of the first connecting ring 3. A second safety cylinder 38 is arranged inside the first safety cylinder 2. On the upper surface of the second safety cylinder 38, a second connecting seat 37 is fixedly connected. The first safety cylinder 2 and the second safety cylinder 38 protect the stamping head of the stamping seat. At the same time, the second safety cylinder 38 can slide along between the first connecting ring 3 and the second connecting ring 31, so as to adjust the working position of the stamping head. After the second connecting ring 31 contacts the processing table 12, the second connecting ring 31 will rise to cooperate with the stamping head for stamping work, improving the use safety of the device and indirectly improving the working efficiency of the device.

[0039] As Figure 1 and Figure 2 shown, a lifting assembly 15 is provided in a matching manner on the inner surface of the working frame 13. The lifting assembly 15 is matched with the position of the stamping seat 14. By controlling the stamping seat 14 to rise and fall through the lifting assembly 15, the device can be lifted and lowered, facilitating stamping.

[0040] As Figure 3 andFigure 4 As shown, the first safety cylinder 2 is arranged in a barrel shape, the first connecting seat 21 is arranged in a ring shape, and the first connecting seat 21 is fixedly connected to the lower surface of the stamping seat 14 through a plurality of fastening bolts. The top of the stamping head is wrapped by the first safety cylinder 2 to play a role in dust prevention and protection. Among them, the first connecting seat 21 and the stamping seat 14 are installed through a plurality of fastening bolts, and its installation convenience is good.

[0041] As Figure 4 shown, the fastening mechanism includes a first fixing seat 23 and a second fixing seat 24. A rotating column 25 is embedded and rotatably connected to the front surface of the second fixing seat 24. The rotating column 25 is engaged with the first fixing seat 23. The first fixing seat 23 is provided with a pin shaft 26. The first fixing seat 23 and the second fixing seat 24 are arranged in parallel. The rotating column 25 and the first fixing seat 23 are inserted and connected through the pin shaft 26. By providing the first fixing seat 23 and the second fixing seat 24, when processing larger parts, it is necessary to lift the second safety cylinder 38 to prevent the second safety cylinder 38 from directly contacting the uneven parts, resulting in damage to the second safety cylinder 38. Therefore, lift the grip 35 and place the grip 35 on the rotating column 25 to play a supporting effect.

[0042] As Figure 5 and Figure 8 shown, the first connecting ring 3 is located at the top position of the second connecting ring 31. The sliding groove 22 is communicated with the limiting seat 32. A limiting groove is formed on the inner surface of the limiting seat 32. The outer surface of the sliding sleeve 34 is slidably connected to the inner surface of the limiting groove. The limiting groove defines the working trajectory of the sliding sleeve 34. The sliding sleeve 34 drives the sliding ring 36 to slide, thereby driving the second safety cylinder 38 to rise and fall.

[0043] As Figure 5 and Figure 8 shown, the spring 39 is sleeved on the outer surface of the limiting rod 33. The spring 39 is in a compressed state. A grip 35 is fixedly connected to the outer surface of the sliding sleeve 34. The grip 35 is matched with the position of the sliding groove 22. The rotating column 25 is matched with the position of the grip 35. The setting of the spring 39 plays a role in resetting, that is, the spring 39 pushes the sliding sleeve 34 to descend, thereby driving the sliding ring 36 and the second safety cylinder 38 at its bottom to descend, completing the effect of fully surrounding the stamping head.

[0044] As Figure 6 and Figure 8As shown, a plurality of fixing posts 30 are fixedly connected circumferentially between the first connecting ring 3 and the second connecting ring 31. The sliding ring 36 is arranged in a ring shape and is slidably connected to the outer surfaces of the plurality of fixing posts 30. The arrangement of the plurality of fixing posts 30 plays a role in stably cooperating with the sliding ring 36 for lifting work, ensuring that the second safety cylinder 38 slides tightly against the inner surface of the second connecting ring 31.

[0045] As Figure 5 and Figure 8 shown, the second connecting seat 37 is arranged in a ring shape and is fixedly connected to the sliding ring 36 through a plurality of fastening bolts. The outer surface of the second safety cylinder 38 slides tightly against the inner surface of the second connecting ring 31. Among them, the second connecting seat 37 and the sliding ring 36 are installed, and the installation is convenient, which is conducive to the maintenance work of the equipment and indirectly improves the convenience of equipment maintenance.

[0046] Preferably, for the protective cover of the stamping equipment for automotive parts using any one of claims 1-9, the following steps are included:

[0047] S1. Place the automotive parts to be processed on the processing table 12, and then start the stamping work, that is, start the lifting component 15 to drive the stamping seat 14 to descend, that is, drive the stamping head to stamp the automotive parts to be processed, and complete the pre-installation work.

[0048] S2. During the stamping process, since the second safety cylinder 38 is located at the bottom of the stamping head, the second safety cylinder 38 first contacts the processing table 12, and then the second safety cylinder 38 slides along the inner surface of the second connecting ring 31, thereby driving the sliding ring 36 to rise, so that the stamping head contacts the automotive parts to be processed, and thus stamp the automotive parts to be processed. During the stamping process, the second safety cylinder 38 provides safety protection for the internal stamping parts.

[0049] S3. After the work is completed, the spring 39 pushes the sliding sleeve 34 to descend, thereby driving the sliding ring 36 and the second safety cylinder 38 at its bottom to descend, and completing the effect of fully surrounding the stamping head.

[0050] S4. For larger parts, hold the grip 35 to drive the sliding sleeve 34 to rise, thereby driving the sliding ring 36 and the second safety cylinder 38 at its bottom to rise. Then rotate the rotating column 25 of the fastening mechanism, engage the rotating column 25 with the first fixed seat 23, and insert and fix it with the pin shaft 26, so that the rotating column 25 supports the grip 35 to prevent the bottom height of the second safety cylinder 38 from being lower than the stamping head, which is convenient for the stamping head to perform stamping work.

[0051] In the present invention, the automobile parts to be processed are placed on the processing table 12, and then the stamping work is carried out, that is, the lifting component 15 is started to drive the stamping seat 14 to descend, that is, the stamping head is driven to stamp the automobile parts to be processed. During the stamping process, since the second safety cylinder 38 is located at the bottom of the stamping head, the second safety cylinder 38 preferentially contacts the processing table 12, and then the second safety cylinder 38 slides along the inner surface of the second connecting ring 31, thereby driving the sliding ring 36 to rise, so that the stamping head contacts the automobile parts to be processed, thereby stamping the automobile parts to be processed. During the stamping process, the second safety cylinder 38 safely protects the internal stamping parts. After the work is completed, the spring 39 pushes the sliding sleeve 34 to descend, thereby driving the sliding ring 36 and the second safety cylinder 38 at the bottom thereof to descend, completing the full encirclement effect of the stamping head. For larger parts, the handle 35 is held to drive the sliding sleeve 34 to rise, thereby driving the sliding ring 36 and the second safety cylinder 38 at the bottom thereof to rise, and then the rotating column 25 of the fastening mechanism is rotated to engage with the first fixed seat 23 through the rotating column 25 and be fixed by the pin shaft 26, so that the rotating column 25 supports the handle 35 to prevent the bottom height of the second safety cylinder 38 from being lower than the punch head, thereby facilitating the punch head to perform the punching work. The first safety cylinder 2 and the second safety cylinder 38 protect the punch head of the punching seat, and at the same time, the second safety cylinder 38 can slide between the first connecting ring 3 and the second connecting ring 31, so as to adjust the working position of the punch head, so that after the second connecting ring 31 contacts the processing table 12, the second connecting ring 31 will rise and cooperate with the punch head to perform the punching work, thereby improving the safety of the device and indirectly improving the working efficiency of the device.

[0052] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective cover for a stamping device of automotive parts, comprising a stamping device and a protective cover, characterized in that: The stamping equipment includes a connecting seat (1). On the upper surface of the connecting seat (1), a base (11) is fixedly connected. On the front surface of the base (11), a processing table (12) is fixedly connected. On the upper surface of the base (11), a working frame (13) is fixedly connected. On the front surface of the working frame (13), a stamping seat (14) is slidably connected. The protective cover is located at the bottom of the stamping seat (14). The protective cover includes a first safety cylinder (2). On the upper surface of the first safety cylinder (2), a first connecting seat (21) is fixedly connected. Near the bottom position on the outer surface of the first safety cylinder (2), a sliding groove (22) is opened. On the outer surface of the first safety cylinder (2), a fastening mechanism is arranged. On the inner surface of the first safety cylinder (2), a first connecting ring (3) and a second connecting ring (31) are fixedly connected. Between the first connecting ring (3) and the second connecting ring (31), a limiting seat (32) is fixedly connected. Between the first connecting ring (3) and the second connecting ring (31), at the inner surface position of the limiting seat (32), a limiting rod (33) is vertically fixedly connected. A sliding sleeve (34) is sleeved on the outer surface of the limiting rod (33). Between the sliding sleeve (34) and the first connecting ring (3), a spring (39) is arranged. At the inner surface position of the first connecting ring (3), the sliding sleeve (34) is fixedly connected with a sliding ring (36). Inside the first safety cylinder (2), a second safety cylinder (38) is arranged. On the upper surface of the second safety cylinder (38), a second connecting seat (37) is fixedly connected. In the inner surface of the working frame (13), a lifting assembly (15) is arranged in a matching manner. The lifting assembly (15) is in a matching position with the stamping seat (14). The fastening mechanism includes a first fixing seat (23) and a second fixing seat (24). On the front surface of the second fixing seat (24), a rotating column (25) is embedded and rotatably connected. The rotating column (25) is in a clamping connection with the first fixing seat (23). The first fixing seat (23) is provided with a pin shaft (26) in a matching manner. The first fixing seat (23) and the second fixing seat (24) are arranged in parallel. The rotating column (25) and the first fixing seat (23) are inserted and connected through the pin shaft (26). The spring (39) is sleeved on the outer surface of the limiting rod (33). The spring (39) is in a compressed state. On the outer surface of the sliding sleeve (34), a handle (35) is fixedly connected. The handle (35) is in a matching position with the sliding groove (22). The rotating column (25) is in a matching position with the handle (35).

2. The protective cover of the stamping equipment for automotive parts according to claim 1, characterized in that: The first safety cylinder (2) is arranged in a barrel shape. The first connecting seat (21) is arranged in a ring shape. The first connecting seat (21) and the lower surface of the stamping seat (14) are fixedly connected by a plurality of fastening bolts.

3. The protective cover of the stamping equipment for automotive parts according to claim 1, characterized in that: The first connecting ring (3) is located at the top position of the second connecting ring (31). The sliding groove (22) is in a communicating setting with the limiting seat (32). On the inner surface of the limiting seat (32), a limiting groove is opened. The outer surface of the sliding sleeve (34) is slidably connected with the inner surface of the limiting groove.

4. The protective cover of the stamping equipment for automotive parts according to claim 1, wherein: A plurality of fixed columns (30) are circumferentially fixedly connected between the first connecting ring (3) and the second connecting ring (31); the sliding ring (36) is arranged in a ring shape, and the sliding ring (36) is slidably connected to the outer surfaces of the plurality of fixed columns (30).

5. The protective cover of the stamping equipment for automotive parts according to claim 1, characterized in that: The second connection seat (37) is arranged in an annular shape, and the second connection seat (37) is fixedly connected to the sliding ring (36) by means of a plurality of fastening bolts, and the outer surface of the second safety cylinder (38) is tightly slidably connected to the inner surface of the second connection ring (31).

6. A method for using a protective cover of a stamping device for automotive parts, characterized in that, A protective cover for an automobile parts stamping device according to any one of claims 1 to 5 is used, comprising the following steps: S1, placing the automobile parts to be processed on the processing table (12), and then performing a stamping operation, i.e. starting the lifting assembly (15), driving the stamping seat (14) to descend, i.e. driving the stamping head to stamp the automobile parts to be processed, and completing the pre-installation operation; S2. During the stamping process, since the second safety cylinder (38) is located at the bottom of the stamping head, the second safety cylinder (38) is preferentially in contact with the processing table (12), and then the second safety cylinder (38) slides along the inner surface of the second connecting ring (31), thereby driving the sliding ring (36) to rise, so that the stamping head contacts the automobile parts to be processed, thereby stamping the automobile parts to be processed. During the stamping process, the second safety cylinder (38) provides safety protection for the internal stamped parts; S3. After the work is completed, the spring (39) pushes the sliding sleeve (34) to descend, thereby driving the sliding ring (36) and the second safety cylinder (38) at the bottom thereof to descend, thereby completing the full encirclement effect of the punch head; S4. For larger parts, the user holds the handle (35) to drive the sliding sleeve (34) upward, thereby driving the sliding ring (36) and the second safety cylinder (38) at the bottom thereof upward, and then rotates the rotating column (25) of the fastening mechanism, so that the rotating column (25) is engaged with the first fixing seat (23) and is inserted and fixed by the pin shaft (26), so that the rotating column (25) supports the handle (35) to prevent the bottom height of the second safety cylinder (38) from being lower than the punch head, thereby facilitating the punch head to perform the punching work.

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