A stamping die for tubular automobile parts

Abstract

The present invention relates to the field of automobile parts stamping technology, and in particular to a tubular automobile parts stamping die, comprising a stamping platform, a mounting frame, a lower die and an upper die, wherein a fixed magnetic block is fixedly installed inside the lower die, a stamping seat is fixedly connected to the bottom of the upper die, a semicircular slide is provided on the upper surface of the lower die and the lower surface of the stamping seat, a punching head is fixedly connected to the lower surface of the stamping seat, an air duct is provided inside the stamping seat, an air valve is installed at the connection between the air duct and the slide, and a movable magnetic block is slidably connected to the inner wall of the slide. When the tubular automobile parts stamping die is closed, the upper die will gradually approach the lower die during the process of descending, and the movable magnetic block will slide upward inside the air duct, thereby pulling the telescopic spring to extend. During the sliding process, the movable magnetic block will squeeze the air inside the air duct, causing the air to be discharged from the air valve at an accelerated speed to clean the punching head, thereby preventing the punching head from being affected by impurities on the surface of the punching head and affecting the punching quality.

Description

Technical Field

[0001] The invention relates to the technical field of automobile part stamping, in particular to a tubular automobile part stamping die. Background Art

[0002] A stamping die, commonly known as a cold stamping die, is a specialized piece of equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during the cold stamping process. Stamping is a pressure processing method that uses a die mounted on a press to apply pressure to the material at room temperature, causing it to separate or plastically deform, thereby producing the desired part. With the development of the automotive industry, the demand for precision in automotive parts is becoming increasingly demanding.

[0003] Existing stamping dies are unstable when stamping automotive parts, resulting in average part accuracy. In addition, a large impact force is generated during stamping, causing both the upper and lower dies to be greatly impacted, and the die lacks a buffering protection function.

[0004] The patent document with publication number CN211437763U discloses a stamping die for automobile parts. The arrangement of a discharge plate, a discharge trough and a material taking trough facilitates the cleaning of waste generated during the stamping process and improves the unloading efficiency. In addition, a support plate is arranged under the discharge plate, a buffer groove is opened in the support plate, and a number of buffer springs are arranged in the buffer groove. The arrangement of the buffer springs can improve the buffering effect of the overall structure and reduce the damage to the die caused by rigid collision.

[0005] However, when the auto parts stamping die is used to stamp a tubular auto part, some fine particles of waste will remain on the stamping head, affecting the subsequent stamping effect. Summary of the Invention

[0006] The object of the present invention is to provide a stamping die for a tubular automobile part to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a tubular automobile part stamping die, comprising a stamping platform and a mounting bracket installed on the top of the stamping platform, a lower die fixedly installed on the top of the stamping platform, a press fixedly installed on the top of the mounting bracket, a connecting seat fixedly connected to the bottom of the press, and an upper die fixedly connected to the bottom of the connecting seat.

[0008] A fixed magnetic block is fixedly installed inside the lower mold, and a punching seat is fixedly connected to the bottom of the upper mold. Semicircular slides are provided on the upper surface of the lower mold and the lower surface of the punching seat. A punching head is fixedly connected to the lower surface of the punching seat. An air duct is provided inside the punching seat, and an air valve is installed at the connection between the air duct and the slide. A movable magnetic block is slidably connected to the inner wall of the slide, and a telescopic spring is fixedly connected to the bottom of the movable magnetic block.

[0009] Preferably, the top of the lower mold is fixedly connected to a positioning column 1, and the bottom of the upper mold is fixedly connected to a positioning column 2. The inner diameter of the positioning column 2 is larger than the diameter of the positioning column 1. The positioning column 2 can extend to the interior of the positioning column 1 and be slidably connected to its inner wall.

[0010] Preferably, the front of the mounting frame is fixedly connected to a connecting track, and the back of the upper mold is slidably connected to the front of the connecting track. By providing the connecting track, the sliding of the upper mold can be made more stable, thereby improving the stamping stability.

[0011] Preferably, a waste collection device is provided on the top of the stamping platform, and the waste collection device includes a waste box, a fan, a filter, a sliding rail and a limit plate. The sliding rail is fixedly installed on the top of the stamping platform, the waste box is slidably connected to the top of the sliding rail, the fan is fixedly installed on the left side of the inner wall of the waste box, the filter is connected to the right side of the inner wall of the waste box, and the limit plate is fixedly connected to the front and back of the sliding rail.

[0012] Preferably, the filter is connected to the left side of the inner wall of the waste box by bolts. A bolt hole is provided on the left side of the inner wall of the waste box. The filter is connected to the left side of the inner wall of the waste box by bolts. The filter can be disassembled for easy replacement.

[0013] Preferably, a feeding platform is fixedly connected to the right side of the stamping platform, and a feeding device is provided on the top of the feeding platform. The feeding device includes a mounting platform, a motor, a pipe feed rack, a retaining frame, a screw and a screw nut. The mounting platform is fixedly installed on the top right side of the feeding platform, the motor is fixedly installed on the bottom of the mounting platform, the pipe feed rack is fixedly installed on the top of the mounting platform, the screw is connected to the output end of the motor, the screw nut is connected to the outer surface of the screw, and the retaining frame is fixedly connected to the top of the screw nut.

[0014] Preferably, two retainers are provided on the left and the right, and the left retainer is fixedly installed on the left side of the top of the stamping platform. The left retainer can facilitate the discharge of the steel pipe and the discharge stroke is more stable.

[0015] Preferably, a straightening mechanism is provided on the top right side of the stamping platform, and the straightening mechanism includes a slide rail, a movable platform 1, a straightening seat, a straightening pulley 1, a hydraulic cylinder, a movable platform 2, a straightening pulley 2, a locking seat, a straightening pulley 3 and a retaining sleeve. The slide rail is fixedly installed on the top of the feeding platform, the movable platform 1 is slidably connected to the upper surface of the slide rail, the straightening seat is fixedly installed on the top of the movable platform 1, the hydraulic cylinder is fixedly installed on the top of the movable platform 1, the straightening pulley 1 is connected to the output end of the hydraulic cylinder, the movable platform 2 is fixedly installed on the top of the stamping platform, the straightening pulley 3 is rotatably connected to the inside of the movable platform 2, the straightening pulley 2 is rotatably connected to the top of the movable platform 2, the locking seat is arranged on the top of the straightening pulley 2, and the retaining sleeve is arranged on the top of the straightening pulley 3.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the tubular automobile parts stamping die is closed, the upper die will gradually approach the lower die during the descending process, and the movable magnetic block will slide upward inside the air duct, thereby pulling the telescopic spring to extend. The movable magnetic block will squeeze the air inside the air duct during the sliding process, causing the air to be discharged from the air valve at an accelerated speed. Because one end of the air duct outlet leads to the punching head, the accelerated discharge of gas will clean the punching head and blow off impurities on the punching head, preventing the punching quality from being affected by impurities on the surface of the punching head.

[0018] 2. The tubular automobile parts stamping die allows the steel pipe to pass through straightening pulley 1, straightening pulley 2, and straightening pulley 3 during the movement of the steel pipe, and allows the steel pipe to pass through the inside of the retaining sleeve to ensure the stability of the steel pipe during transmission, so that the steel pipe can move in a straight line and avoid deviation of the steel pipe, which may cause deviation of the stamping position.

[0019] 3. In this tubular automotive parts stamping die, during the lowering process of the upper die, the second positioning post can extend into the interior of the first positioning post, thereby achieving the effect of auxiliary positioning and avoiding the offset of the punching position caused by inaccurate mold closing between the upper and lower dies. At the same time, the sliding connection between the back of the upper die and the front of the connecting track can make the upper die more stable during the lifting process, further improving the stability of the stamping.

[0020] 4. The tubular automobile parts stamping die pushes the waste box to slide on the sliding track to align the waste box with the slide of the lower die, and then starts the fan to suck out the waste in the slide, so that the waste hits the filter and then falls, and is collected by the filter. After the waste is collected, the waste box can be pulled to slide on the sliding track to make the waste box contact with the limit plate to prevent the waste box from blocking the stamping of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic structural diagram of the feeding device of the present invention;

[0024] Figure 3 This is a schematic diagram of the top structure of the stamping platform of the present invention;

[0025] Figure 4 It is a schematic structural diagram of the pressurizing mechanism of the present invention;

[0026] Figure 5 It is a schematic diagram of the overall structure of the straightening mechanism of the present invention;

[0027] Figure 6 This is a schematic diagram of the straightening pulley structure of the present invention;

[0028] Figure 7 Schematic diagram of the lower mold structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the internal structure of the waste box of the present invention;

[0030] Figure 9 Schematic diagram of the upper mold structure of the present invention;

[0031] Figure 10 It is a cross-sectional view of the punching seat of the present invention.

[0032] In the figure: 1. Stamping platform; 2. Lower mold; 201. Positioning column 1; 202. Fixed magnetic block; 3. Upper mold; 301. Stamping base; 302. Positioning column 2; 303. Slide; 304. Punching head; 305. Air duct; 3051. Air valve; 3052. Movable magnetic block; 3053. Telescopic spring; 4. Pressurizer; 401. Connecting base; 402. Mounting frame; 403. Connecting rail; 5. Slide; 501. Movable platform 1; 502. Straightening seat; 503, straightening pulley one; 504, hydraulic cylinder; 505, movable platform two; 506, straightening pulley two; 507, locking seat; 508, straightening pulley three; 509, retaining sleeve; 6, feeding platform; 7, mounting platform; 701, motor; 702, pipe feed rack; 703, retaining rack; 704, screw; 705, screw nut; 8, waste box; 801, fan; 802, filter; 803, sliding track; 804, limit plate. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0034] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] See also Figures 1-10 , the present invention provides a technical solution:

[0036] Embodiment 1: A stamping die for tubular automobile parts comprises a stamping platform 1 and a mounting frame 402 mounted on the top of the stamping platform 1, a lower die 2 is fixedly mounted on the top of the stamping platform 1, a press 4 is fixedly mounted on the top of the mounting frame 402, a connecting seat 401 is fixedly connected to the bottom of the press 4, and an upper die 3 is fixedly connected to the bottom of the connecting seat 401.

[0037] A fixed magnetic block 202 is fixedly installed inside the lower mold 2, and a stamping seat 301 is fixedly connected to the bottom of the upper mold 3. A semicircular slide 303 is provided on the upper surface of the lower mold 2 and the lower surface of the stamping seat 301. A punching head 304 is fixedly connected to the lower surface of the stamping seat 301. An air duct 305 is provided inside the stamping seat 301. An air valve 3051 is installed at the connection between the air duct 305 and the slide 303. The air valve 3051 is for two-way ventilation. A movable magnetic block 3052 is slidably connected to the inner wall of the slide 303. A telescopic spring 3053 is fixedly connected to the bottom of the movable magnetic block 3052. The movable magnetic block 3052 and the side close to the fixed magnetic block 202 repel each other.

[0038] During mold closing, the upper mold 3 gradually approaches the lower mold 2 during its descending process. When it approaches the fixed magnetic block 202 inside the lower mold 2, the movable magnetic block 3052 and the side close to the fixed magnetic block 202 repel each other, so the movable magnetic block 3052 slides upward inside the air duct 305, thereby pulling the telescopic spring 3053 to extend. The movable magnetic block 3052 squeezes the air inside the air duct 305 during the sliding process, causing the air to be discharged from the air valve 3051 at an accelerated speed. One end outlet of the duct 305 leads to the punching head 304. The accelerated discharged gas will clean the punching head 304 and blow off the impurities on the punching head 304 to prevent the punching head 304 from affecting the punching quality due to impurities on the surface. When the mold is opened, the upper mold 3 rises, and the movable magnetic block 3052 moves away from the fixed magnetic block 202 and loses the repulsive force. The movable magnetic block 3052 falls due to gravity and squeezes the telescopic spring 3053 to contract, and the outside gas re-enters the interior of the air duct 305.

[0039] The right side of the stamping platform 1 is fixedly connected to the feeding platform 6, and a feeding device is provided on the top of the feeding platform 6, which includes a mounting platform 7, a motor 701, a pipe feeding rack 702, a retaining frame 703, a screw 704 and a screw nut 705. The mounting platform 7 is fixedly installed on the top right side of the feeding platform 6, the motor 701 is fixedly installed on the bottom of the mounting platform 7, the pipe feeding rack 702 is fixedly installed on the top of the mounting platform 7, the screw 704 is connected to the output end of the motor 701, the screw nut 705 is connected to the outer surface of the screw 704, and the retaining frame 703 is fixedly connected to the top of the screw nut 705. There are two retaining frames 703 on the left and the left retaining frame 703 is fixedly installed on the top left side of the stamping platform 1. During the transmission of the steel pipe, by starting the motor 701, the output shaft of the motor 701 drives the screw 704 to rotate, and the screw 704 drives the screw nut 705 to move along the direction of the screw 704, thereby driving the retaining frame 703 to move, thereby making the steel pipe move smoothly.

[0040] A straightening mechanism is provided on the right side of the top of the stamping platform 1, which includes a slide rail 5, a movable platform 1 501, a straightening seat 502, a straightening pulley 1 503, a hydraulic cylinder 504, a movable platform 2 505, a straightening pulley 2 506, a locking seat 507, a straightening pulley 3 508 and a retaining sleeve 509. The slide rail 5 is fixedly mounted on the top of the feeding platform 6, the movable platform 1 501 is slidably connected to the upper surface of the slide rail 5, and the straightening seat 502 is fixedly mounted on the movable platform 1. 501, the hydraulic cylinder 504 is fixedly installed on the top of the movable platform 1 501, the straightening pulley 1 503 is connected to the output end of the hydraulic cylinder 504, the movable platform 2 505 is fixedly installed on the top of the stamping platform 1, the straightening pulley 3 508 is rotatably connected to the inside of the movable platform 2 505, the straightening pulley 2 506 is rotatably connected to the top of the movable platform 2 505, the upper surface of the movable platform 2 505 is provided with a socket, and the locking seat 507 is set on the straightening pulley 2 50 6, the bottom of the locking seat 507 is connected with a rotating shaft, the rotating shaft is sleeved with the straightening pulley 2 506, the bottom of the rotating shaft is inserted into the interior of the movable platform 2 505, and the retaining sleeve 509 is set on the top of the straightening pulley 3 508. During the movement of the steel pipe, the steel pipe passes through the straightening pulley 1 503, the straightening pulley 2 506, and the straightening pulley 3 508, and the steel pipe passes through the interior of the retaining sleeve 509. The distance between the straightening pulley 1 503 and the straightening seat 502 can be adjusted by the hydraulic cylinder 504 to adapt to different steel pipe diameters. The straightening pulley 2 506 can be replaced. When installing the straightening pulley 2 506, the rotating shaft at the bottom of the locking seat 507 is inserted into the interior of the straightening pulley 2 506, and then the rotating shaft is inserted into the interior of the jack. The stability of the steel pipe during transmission can be guaranteed by the three straightening pulleys, so that the steel pipe can be kept moving in a straight line to avoid the steel pipe from being offset, which causes the stamping position to be offset.

[0041] A waste collection device is provided on the top of the stamping platform 1, which includes a waste box 8, a fan 801, a filter 802, a sliding track 803 and a limit plate 804. The sliding track 803 is fixedly installed on the top of the stamping platform 1, the waste box 8 is slidably connected to the top of the sliding track 803, the fan 801 is fixedly installed on the left side of the inner wall of the waste box 8, the filter 802 is connected to the right side of the inner wall of the waste box 8, the limit plate 804 is fixedly connected to the front and back of the sliding track 803, and the filter 802 is connected to the waste box 8 by bolts. A bolt hole is provided on the left side of the inner wall of the waste box 8. After the stamping is completed, the waste box 8 is pushed to slide on the sliding track 803 to align with the slide 303 of the lower mold 2, and then the fan 801 is started to suck out the waste in the slide 303, so that the waste impacts the filter 802 and then falls, and the waste is collected by the filter 802. After the waste collection is completed, the waste box 8 can be pulled to slide on the sliding track 803 to make the waste box 8 contact with the limit plate 804 to prevent the waste box 8 from blocking the stamping of the steel pipe.

[0042] Example 2: Based on Example 1, the front of the mounting frame 402 is fixedly connected to the connecting rail 403, and the back of the upper mold 3 is slidingly connected to the front of the connecting rail 403. The sliding connection between the back of the upper mold 3 and the front of the connecting rail 403 can make the upper mold 3 more stable during the lifting process, further improving the stability of the stamping.

[0043] Example 3: On the basis of Example 1 and Example 2, the top of the lower mold 2 is fixedly connected with a positioning column 1 201, and the bottom of the upper mold 3 is fixedly connected with a positioning column 2 302. The inner diameter of the positioning column 2 302 is larger than the diameter of the positioning column 1 201. The positioning column 2 302 can extend to the interior of the positioning column 1 201 and be slidably connected to its inner wall. During the descending process of the upper mold 3, the positioning column 2 302 can extend to the interior of the positioning column 1 201, thereby achieving the effect of auxiliary positioning, avoiding the offset of the punching position caused by inaccurate mold closing of the upper mold 3 and the lower mold 2.

[0044] Working principle: When stamping tubular automobile parts, the steel pipe is first inserted into the pipe feed rack 702, and then passes through the pipe feed rack 702, the retaining rack 703 on the right and three straightening pulleys in sequence. Then, one end of the steel pipe is inserted into the semicircular slide 303 of the lower mold 2, and finally, one end of the steel pipe is inserted into the retaining rack 703 on the left. By starting the press 4, the connecting seat 401 and the upper mold 3 are driven down, and the upper mold 3 causes the punching head 304 to stamp the steel pipe.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A stamping die for a tubular automobile part, comprising a stamping platform (1) and a mounting frame (402) mounted on the top of the stamping platform (1), characterized in that: A lower mold (2) is fixedly mounted on the top of the punching platform (1), a press (4) is fixedly mounted on the top of the mounting frame (402), a connecting seat (401) is fixedly connected to the bottom of the press (4), and an upper mold (3) is fixedly connected to the bottom of the connecting seat (401); A fixed magnetic block (202) is fixedly installed inside the lower mold (2); The bottom of the upper mold (3) is fixedly connected to a punching seat (301), the upper surface of the lower mold (2) and the lower surface of the punching seat (301) are both provided with a semicircular slideway (303), the lower surface of the punching seat (301) is fixedly connected to a punching head (304), an air duct (305) is provided inside the punching seat (301), an air valve (3051) is installed at the connection between the air duct (305) and the slideway (303), the inner wall of the slideway (303) is slidably connected to a movable magnetic block (3052), and the bottom of the movable magnetic block (3052) is fixedly connected to a telescopic spring (3053); the right side of the punching platform (1) is fixedly connected to a feeding platform (6); A straightening mechanism is provided on the right side of the top of the punching platform (1), and the straightening mechanism includes a slide rail (5), a movable platform (501), a straightening seat (502), a straightening pulley (503), a hydraulic cylinder (504), a movable platform (505), a straightening pulley (506), a locking seat (507), a straightening pulley (508) and a retaining sleeve (509). The slide rail (5) is fixedly mounted on the top of the feeding platform (6), the movable platform (501) is slidably connected to the upper surface of the slide rail (5), and the straightening seat (502) is fixedly mounted on the movable platform (501). The hydraulic cylinder (504) is fixedly mounted on the top of the movable platform (501), the straightening pulley (503) is connected to the output end of the hydraulic cylinder (504), the movable platform (505) is fixedly mounted on the top of the stamping platform (1), the straightening pulley (508) is rotatably connected to the inside of the movable platform (505), the straightening pulley (506) is rotatably connected to the top of the movable platform (505), the locking seat (507) is arranged on the top of the straightening pulley (506), and the retaining sleeve (509) is arranged on the top of the straightening pulley (508).

2. A stamping die for tubular automobile parts according to claim 1, characterized in that: The top of the lower mold (2) is fixedly connected to a positioning column 1 (201), and the bottom of the upper mold (3) is fixedly connected to a positioning column 2 (302). The inner diameter of the positioning column 2 (302) is larger than the diameter of the positioning column 1 (201). The positioning column 2 (302) can extend into the interior of the positioning column 1 (201) and be slidably connected to its inner wall.

3. The stamping die for tubular automobile parts according to claim 1, characterized in that: The front of the mounting frame (402) is fixedly connected to a connecting track (403), and the back of the upper mold (3) is slidably connected to the front of the connecting track (403).

4. The stamping die for tubular automobile parts according to claim 1, characterized in that: A waste collecting device is provided on the top of the stamping platform (1), and the waste collecting device comprises a waste box (8), a fan (801), a filter (802), a sliding track (803) and a limit plate (804), wherein the sliding track (803) is fixedly mounted on the top of the stamping platform (1), the waste box (8) is slidably connected to the top of the sliding track (803), the fan (801) is fixedly mounted on the left side of the inner wall of the waste box (8), the filter (802) is connected to the right side of the inner wall of the waste box (8), and the limit plate (804) is fixedly connected to the front and back sides of the sliding track (803).

5. The stamping die for tubular automobile parts according to claim 1, characterized in that: A feeding device is provided on the top of the feeding platform (6), and the feeding device includes a mounting platform (7), a motor (701), a pipe feeding rack (702), a retaining frame (703), a screw (704) and a screw nut (705). The mounting platform (7) is fixedly mounted on the right side of the top of the feeding platform (6), the motor (701) is fixedly mounted on the bottom of the mounting platform (7), the pipe feeding rack (702) is fixedly mounted on the top of the mounting platform (7), the screw (704) is connected to the output end of the motor (701), the screw nut (705) is connected to the outer surface of the screw (704), and the retaining frame (703) is fixedly connected to the top of the screw nut (705).

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