CN114904968A - A multi-level stamping die and method for automatic feeding and discharging of auto parts - Google Patents

Abstract

The invention relates to the technical field of automobile dies and discloses a multi-layer stamping die capable of automatically feeding and discharging automobile accessories, which comprises a support, wherein a driving motor is fixedly installed at the top of the support, a die pressing mechanism is arranged on the driving motor, a material transferring mechanism is arranged on the die pressing mechanism, a first upper die and a rotating die are movably connected onto the support, the rotating die is positioned below the first upper die, and an extracting mechanism is arranged on the support. This a multi-level stamping die that is used for auto-parts can advance and retreat material automatically, through the mechanism that draws that sets up can realize automatic feed's effect at the fashioned in-process of whole auto-cover, need not to adopt the input of manual work and robot for whole cost can effectively be reduced, and utilized same power to make its processing realize the linkage cooperation, and efficiency is faster, and the error rate reduces, the effectual machining efficiency that has improved.

Description

A multi-level stamping die and method for automatic feeding and discharging of auto parts

technical field

The invention relates to the technical field of automobile molds, in particular to a multi-level stamping mold used for automatic feeding and discharging of auto parts.

Background technique

In recent years, with the popularization of family cars, the automobile manufacturing industry has developed rapidly. Due to the continuous improvement of people's aesthetic requirements, the upgrading of automobiles has accelerated, and the development, design and production cycle of stamping dies for automobile panels has also been continuously shortened. In order to ensure quality and quantity, meet customer needs and save costs, the difficulty in the mold production process has been greatly increased. In particular, the mold structure is extremely complicated for the mold used for the large-scale key covering such as the side wall of the automobile body.

However, in the process of processing some car panels at present, manual feeding is still used, or the method of grabbing and feeding by robots is used, which leads to the occupation of space on the site and increases a certain manufacturing cost. At the same time, some car panels Because of its special-shaped structure, one-time molding cannot be completed, and multiple moldings are required, which makes the transfer of materials and the conversion of molds relatively complicated and cumbersome, which affects its processing efficiency. The multi-level stamping die of the material is used to solve the above-mentioned problems.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the present invention provides a multi-level stamping die for auto parts that can be automatically fed in and out problem of low efficiency.

To achieve the above object, the present invention provides the following technical solutions:

A multi-level stamping die for automatic feeding and discharging of auto parts, including a support, a driving motor is fixedly installed on the top of the support, a pressing mechanism is arranged on the driving motor, and a pressing mechanism is arranged on the pressing mechanism. There is a feeding mechanism, a first upper mold and a rotating mold are movably connected on the support, the rotating mold is located below the first upper mold, and an extraction mechanism is arranged on the support.

Preferably, the rotating mold is provided with a first mold cavity and a second mold cavity, and a baffle plate is fixedly connected to the surface of the rotating mold.

Preferably, the compression molding mechanism includes a drive shaft, and a drive sprocket is fixedly connected to the drive shaft, the drive sprocket is drively connected to the drive sprocket through a chain, and the drive sprocket is fixedly connected to the drive motor. On the output shaft, a connecting piece is rotatably connected to the driving shaft, and the bottom of the connecting piece is rotatably connected to the first upper die.

Preferably, the material transfer mechanism includes a round sleeve, a second gear is fixedly connected to the round sleeve, a first gear is engaged with the second gear, and the first gear is fixedly connected to the end face of the driving shaft, A third rotating shaft is fixedly connected to the shaft center of the second gear, and the third rotating shaft is rotatably connected to the connecting frame.

Preferably, a toggle rod is fixedly connected to the round sleeve, the surface of the round sleeve is movably connected to a limit turning plate, a toggle groove is formed on the limit turning plate, and the center of the limit turning plate is A second rotating shaft is fixedly connected, the surface of the second rotating shaft is fixedly connected with the rotating die, and the second rotating shaft is rotatably connected on the support.

Preferably, the connecting piece includes an upper strut, the bottom of the upper strut is fixedly connected with an intermediate rod, the bottom of the intermediate rod is slidably connected with a lower strut, and a buffer spring is fixedly connected between the lower strut and the upper strut , and the buffer spring is sleeved on the middle rod.

Preferably, the compression molding mechanism further includes a first rotating shaft, two cams are fixedly connected to the first rotating shaft, two ends of the first rotating shaft are rotatably connected to a bracket, and a sliding column is slidably connected to the bracket. , a spring plate is fixedly connected to the sliding column, and a connecting plate is slidably connected to the sliding column, a contraction spring is fixedly connected between the connecting plate and the spring plate, and a second upper mold is fixedly connected to the bottom of the sliding column , a transmission wheel is fixedly connected to the first rotating shaft, the surface of the transmission wheel is connected with the surface of the driving wheel through a belt, and the driving wheel is fixedly connected to the driving rotating shaft.

Preferably, the extraction mechanism includes a power plate, the power plate is fixedly connected to the end face of the driving shaft, a power rod is rotatably connected to the power plate, and a swing plate is rotatably connected to the bottom of the power rod, and the swing A fourth rotating shaft is rotatably connected to the plate, a support plate is fixedly connected to the fourth rotating shaft, and an extraction rack is connected to the support plate.

Preferably, the extraction frame includes a sliding link, the bottom of the sliding link is fixedly connected with a grab frame, the bottom of the grab frame is fixedly connected with a plurality of suction cups, and the surface of the sliding link is slidably connected There is a cylindrical sleeve on which a connecting support rod is fixedly connected, and the connecting support rod and the fourth rotating shaft are both rotatably connected to the support.

Compared with the prior art, the present invention provides a multi-level stamping die for auto parts that can automatically feed and discharge materials, and has the following beneficial effects:

1. The multi-level stamping die for auto parts can be automatically fed in and out. The extraction mechanism can be set to achieve the effect of automatic feeding in the entire process of forming the auto panel, without the input of labor and robots, so that the entire cost of It can be effectively reduced, and the same power is used to make the processing to achieve linkage coordination, the efficiency is faster, the error rate is reduced, and the processing efficiency is effectively improved.

2. The multi-level stamping die for auto parts can be automatically fed and discharged. Through the multi-level pressing, some covering parts with special-shaped structures that need to be processed multiple times can be synchronized in one process. Further To improve its processing efficiency, there is no need to transfer the material or change the mold after the initial processing of the product.

3. The multi-level stamping die for auto parts can be automatically fed in and out. Through the polygonal rotating die set, automatic rotation can also be realized every time the pressing operation is performed, so as to realize the transfer of materials and to "advance forward". "Later out" method to achieve the effect of fast material transfer and fast material discharge, and use the action of gravity to realize automatic material discharge, in this way, multi-level processing, material transfer effect, and full automatic movement are realized to solve the problem of product processing. complicated process.

4. The multi-level stamping die for auto parts that can automatically feed and discharge materials, through the provided connectors, the equipment can provide a buffering effect to the die and the product forming process during the first stamping process, avoiding the need for Reduced quality due to direct stamping of the product, as well as damage to the mold.

5. The multi-level stamping die used for auto parts can automatically feed and discharge materials. The baffle plate provided can provide a certain support during the discharging process, so as to avoid the blank sheet falling off in the inclined state when discharging. Falling situation.

Description of drawings

1 is a schematic diagram of the overall structure of a multi-level stamping die for auto parts that can be automatically loaded and unloaded according to the present invention;

FIG. 2 is a schematic diagram of the overall side structure of a multi-level stamping die for automatic feeding and discharging of auto parts proposed by the present invention;

3 is a schematic structural diagram of a rotary die for a multi-level stamping die that can automatically feed and discharge materials for auto parts proposed by the present invention;

4 is a schematic diagram of a multi-level stamping die pressing mechanism and a material transfer mechanism for auto parts that can automatically feed and discharge materials proposed by the present invention;

FIG. 5 is a schematic diagram of a connector of a multi-level stamping die for automatic feeding and discharging of auto parts proposed by the present invention;

6 is a partial schematic diagram of the die mechanism of a multi-level stamping die that can be used for automatic feeding and discharging of auto parts proposed by the present invention;

7 is a schematic diagram of the extraction mechanism of a multi-level stamping die for auto parts that can automatically feed and discharge materials proposed by the present invention;

FIG. 8 is a schematic structural diagram of an extraction frame of a multi-level stamping die for automatic feeding and discharging of auto parts according to the present invention.

In the figure: 1. Support; 2. Drive motor; 3. Die die mechanism; 301, Drive sprocket; 302, Drive sprocket; 303, Drive shaft; 304, Connecting piece; 3041, Upper pillar; 3043, lower strut; 3044, buffer spring; 305, limit plate; 306, first gear; 307, second gear; 308, drive wheel; 309, transmission wheel; 310, first shaft; 311, cam; 312 , bracket; 313, sliding column; 314, connecting plate; 315, second upper die; 316, shrinking spring; 317, spring plate; 4, transfer mechanism; 401, round sleeve; 402, toggle lever; 403, limit Position turning plate; 404, second shaft; 405, third shaft; 406, toggle groove; 5, first upper die; 6, extraction mechanism; 601, power plate; 602, power rod; 603, swing plate; 604 605, bracket plate; 606, extraction frame; 6061, sliding link; 6062, grab frame; 6063, suction cup; 607, cylindrical sleeve; 608, connecting rod; 7, rotating die; A mold cavity; 702, a second mold cavity; 703, a baffle plate; 8, a connecting frame.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Fig. 1-8, a multi-level stamping die for auto parts with automatic feeding and discharging, including a support 1, a driving motor 2 is fixedly installed on the top of the support 1, and a pressing mechanism 3 is arranged on the driving motor 2 , the die mechanism 3 is provided with a transfer mechanism 4, the support 1 is movably connected with a first upper mold 5 and a rotating mold 7, the rotating mold 7 is located below the first upper mold 5, and the support 1 is provided with an extraction mechanism 6.

In this embodiment, the rotating mold 7 is provided with a first mold cavity 701 and a second mold cavity 702 , and a baffle plate 703 is fixedly connected to the surface of the rotating mold 7 . Through the opening of different structural cavities, multiple stamping and forming of some complex structural coverings.

Further, the die mechanism 3 includes a drive shaft 303 , and a drive sprocket 302 is fixedly connected to the drive shaft 303 . A connecting piece 304 is rotatably connected to the output shaft of the driving shaft 303 , and the bottom of the connecting piece 304 is rotatably connected to the first upper die 5 . The transmission of the chain is used to control the rotation of the driving shaft 303, and the rotation of the driving shaft 303 will drive the first upper die 5 movably connected with the connecting piece 304 to move up and down to realize stamping.

Furthermore, the connecting member 304 includes an upper pillar 3041 , the bottom of the upper pillar 3041 is fixedly connected with an intermediate rod 3042 , the bottom of the intermediate rod 3042 is slidably connected with a lower pillar 3043 , and the lower pillar 3043 and the upper pillar 3041 are fixedly connected with a The buffer spring 3044 is sleeved on the middle rod 3042 . The connecting piece 304 is a structural component with a buffering function. When the first upper die 5 moves down, it contacts with the blank, which will play a certain buffering role, so that the first upper die 5 will not be suddenly directly pressed down. The damage to the mold and the damage to the blank make the entire automobile cover part stable during the first molding.

In addition, the pressing mechanism 3 also includes a first rotating shaft 310, and two cams 311 are fixedly connected to the first rotating shaft 310. The two cams 311 are rotated to realize the pressing down on the sliding column 313, and the pressing process is very simple. The weight will control the second upper die 315 to carry out the second stamping and forming of the semi-finished cover piece punched in the first stamping, so as to realize the multi-level stamping. A sliding column 313 is connected, a spring plate 317 is fixedly connected to the sliding column 313, and a connecting plate 314 is slidably connected to the sliding column 313, and a contraction spring 316 is fixedly connected between the connecting plate 314 and the spring plate 317, and the bottom of the sliding column 313 A second upper mold 315 is fixedly connected, and a transmission wheel 309 is fixedly connected to the first rotating shaft 310 . When the cam 311 rotates to a certain angle, the sliding column 313 will be pushed up by the action of the contraction spring 316, so as to realize the effect of reset, and wait for the next operation. And the transmission of the belt is used to drive the rotating shaft 303 to realize synchronous operation control. Reduce the consumption of power components.

In addition, the feeding mechanism 4 includes a round sleeve 401 , a second gear 307 is fixedly connected to the round sleeve 401 , a first gear 306 is engaged with the second gear 307 , and the first gear 306 is fixedly connected to the driving shaft 303 . On the end face, the shaft center of the second gear 307 is fixedly connected with a third rotating shaft 405 , and the third rotating shaft 405 is rotatably connected to the connecting frame 8 . Using the transmission principle of gear meshing, each time the driving shaft 303 rotates, it will drive the rotation of the second gear 307, and control the toggle lever 402 on the round sleeve 401 to toggle the limit rotary plate 403 to rotate an angle, so as to control Turn over feed of die 7. Each toggle will drive the limit turning plate 403 to rotate by 1/5 angle, and then drive the rotary die 7 to rotate by 1/5 angle to perform automatic feeding and automatic feeding. , After turning 1/5 of the angle, the second molding mechanism performs secondary molding on the first-molded cover to achieve multi-level stamping.

It is worth noting that a toggle rod 402 is fixedly connected to the round sleeve 401 , the surface of the round sleeve 401 is movably connected to a limit turning plate 403 , and a toggle slot 406 is formed on the limit turning plate 403 , and the center of the limit turning plate 403 is A second rotating shaft 404 is fixedly connected to the second rotating shaft 404 , the surface of the second rotating shaft 404 is fixedly connected to the rotating die 7 , and the second rotating shaft 404 is rotatably connected to the support 1 . During the process of driving the rotating shaft 303 to rotate, the power plate 601 at the other end will be driven to rotate, and the power plate 601 will drive the power rod 602 to perform a rocking telescopic movement, thereby controlling the reciprocating rotation of the rocking plate 603, using the transmission of the crank connecting rod. According to the principle, the repeated cycle of the extraction rack 606 is finally controlled to realize the process of picking and discharging.

Further, the extraction mechanism 6 includes a power plate 601, the power plate 601 is fixedly connected to the end face of the driving shaft 303, the power plate 601 is rotatably connected with a power rod 602, and the bottom of the power rod 602 is rotatably connected with a swing plate 603, the swing plate A fourth rotating shaft 604 is rotatably connected to the 603 , a support plate 605 is fixedly connected to the fourth rotating shaft 604 , and an extraction frame 606 is connected to the support plate 605 .

Furthermore, the extracting frame 606 includes a sliding link 6061, the bottom of the sliding link 6061 is fixedly connected with a grabbing frame 6062, the bottom of the grabbing frame 6062 is fixedly connected with a plurality of suction cups 6063, and the surface of the sliding link 6061 slides. A cylindrical sleeve 607 is connected, and a connecting support rod 608 is fixedly connected to the cylindrical sleeve 607 , and the connecting support rod 608 and the fourth rotating shaft 604 are both connected to the support 1 in rotation. The set extraction rack 606 is repeatedly turned over, so that the material can be grasped externally, and the material can be discharged internally. The suction and discharge of the suction cup 6063 can be used to realize the process of automatic picking and discharging, and the entire cylindrical sleeve 607 can control the extraction rack 606. Orientation, keep the extraction rack 606 turned steadily.

The electrical components appearing in this article are all connected with the external main controller and 220V mains, and the main controller can be a conventional known device controlled by a computer or the like.

Working principle, firstly, the drive motor 2 provides the driving force, and drives the rotation of the drive shaft 303 through the transmission of the chain, and the rotation of the drive shaft 303 will drive the first upper mold 5 that is movably connected with the connecting piece 304 to move up and down. Stamping is realized, and the limit plates 305 are fixedly connected on both sides of the first upper die 5 to limit the movement of the first upper die 5 up and down, so as to ensure that it will not swing and offset, and the connecting pieces 304 It is a structural component with a buffering effect. When the first upper die 5 moves down, it will play a certain buffering role when it contacts with the blank, so that the first upper die 5 will not be damaged by sudden and direct pressing down. As well as the damage of the blank, the stability of the entire automobile cover during the first molding is made, and the entire driving shaft 303 is designed in the shape of a crank, and the structural shape of the crank shaft is used to realize the upper and lower molds of the first upper mold. Repeated movements. The first gear 306 fixed on the driving shaft 303 rotates accordingly, and will also drive the second gear 307 meshed with it to rotate. The toggle lever 402 will toggle the limit rotary plate 403 to rotate, and each toggle will drive the limit rotary plate 403 to rotate 1/5 angle, and then drive the rotating die 7 to rotate 1/5 angle to automatically Feeding and automatic transfer, because the rotary die 7 is set to and, after the first process is completed, after turning 1/5 angle, the second molding mechanism will perform secondary molding on the first-molded cover, To achieve multi-level stamping. In the stamping of the second level, the rotating shaft 303 is driven to rotate, which drives the rotation of the first rotating shaft 310 by means of belt transmission, and the first rotating shaft 310 drives the two cams 311 to rotate. When the cams 311 rotate, it will drive the sliding The column 313 is pressed down, and the pressing process is very heavy, and the second upper die 315 will be controlled to carry out the second stamping and forming of the semi-finished cover that was stamped in the first time, so as to realize multi-level stamping, and then when the cam 311 rotates a certain angle Afterwards, under the action of the contraction spring 316, the sliding column 313 will be pushed up, so as to realize the effect of reset, and wait for the next operation. At the same time, in the process of driving the rotating shaft 303 to rotate, the power plate 601 at the other end will be driven to rotate, and the power plate 601 will drive the power rod 602 to perform a swinging telescopic motion, thereby controlling the reciprocating rotation of the swing plate 603, and the swing plate 603 The rotation will drive the fourth rotating shaft 604 to move synchronously, and the support plate 605 fixed on its surface will drive the extraction frame 606 to move, so as to realize the process of reclaiming and discharging. On the outside, a plurality of suction cups 6063 are used to suck the blank sheet, that is, the grasping process. After the reset movement of the swing plate 603, the extraction frame 606 will be controlled to move inward, and then the suction cups 6063 will release the air pressure, thereby The sheet material sucked by the suction cup 6063 is placed on the surface of the rotating die 7, and is located at the position of the cavity, and finally the baffle plate 703 will hold it to prevent it from falling. Finally, the whole process of material grabbing, discharging, primary pressure bearing and secondary pressure bearing is realized. When the rotating die 7 is finally rotated, the stamped cover will automatically fall to the position where it is collected on the ground under the action of gravity.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Claims (10)

1. The utility model provides a but multi-level stamping die that is used for auto-parts automatic business turn over material, includes support (1), its characterized in that: the top fixed mounting of support (1) has driving motor (2), be provided with die pressing mechanism (3) on driving motor (2), be provided with on die pressing mechanism (3) and change material mechanism (4), swing joint has first mould (5) and rotation mould (7) on support (1), rotation mould (7) are located the first below of going up mould (5), be provided with on support (1) and draw mechanism (6).

2. The multi-level stamping die for the auto parts capable of automatically feeding and discharging materials as claimed in claim 1, wherein: the rotating die (7) is provided with a first die cavity (701) and a second die cavity (702), and the surface of the rotating die (7) is fixedly connected with a baffle (703).

3. The multi-level stamping die for the auto parts capable of automatically feeding and discharging materials as claimed in claim 1, wherein: the compression moulding mechanism (3) is including drive pivot (303), fixedly connected with drive sprocket (302) on drive pivot (303), drive sprocket (302) are connected with drive sprocket (301) transmission through the chain, drive sprocket (301) fixed connection is on the output shaft of driving motor (2), it is connected with connecting piece (304) to rotate on drive pivot (303), the bottom of connecting piece (304) is rotated and is connected on first mould (5).

4. The multi-level stamping die for auto parts capable of feeding and discharging materials automatically as claimed in claim 3, wherein: the connecting piece (304) comprises an upper support column (3041), the bottom of the upper support column (3041) is fixedly connected with an intermediate rod (3042), the bottom of the intermediate rod (3042) is connected with a lower support column (3043) in a sliding manner, a buffer spring (3044) is fixedly connected between the lower support column (3043) and the upper support column (3041), and the buffer spring (3044) is sleeved on the intermediate rod (3042).

5. The multi-level stamping die for auto parts capable of feeding and discharging materials automatically as claimed in claim 3, wherein: the die pressing mechanism (3) also comprises a first rotating shaft (310), two cams (311) are fixedly connected on the first rotating shaft (310), the two ends of the first rotating shaft (310) are rotatably connected with brackets (312), the brackets (312) are connected with sliding columns (313) in a sliding way, the sliding columns (313) are fixedly connected with spring plates (317), a connecting plate (314) is connected on the sliding column (313) in a sliding way, a contraction spring (316) is fixedly connected between the connecting plate (314) and the spring plate (317), the bottom of the sliding column (313) is fixedly connected with a second upper die (315), the first rotating shaft (310) is fixedly connected with a driving wheel (309), the surface of the driving wheel (309) is in transmission connection with the surface of a driving wheel (308) through a belt, and the driving wheel (308) is fixedly connected to the driving rotating shaft (303).

6. The multi-level stamping die for the auto parts capable of automatically feeding and discharging materials as claimed in claim 1, wherein: change material mechanism (4) including circle cover (401), fixedly connected with second gear (307) on circle cover (401), meshing has first gear (306) on second gear (307), first gear (306) fixed connection is at the terminal surface of drive pivot (303), the axle center department fixedly connected with third pivot (405) of second gear (307), third pivot (405) are rotated and are connected on link (8).

7. The multi-level stamping die for auto parts capable of feeding and discharging materials automatically as claimed in claim 6, wherein: fixedly connected with poker rod (402) on circle cover (401), the surperficial swing joint of circle cover (401) has spacing commentaries on classics board (403), stirring groove (406) have been seted up on spacing commentaries on classics board (403), fixedly connected with second pivot (404) are located at the center of spacing commentaries on classics board (403), the surface and the commentaries on classics mould (7) fixed connection of second pivot (404), and second pivot (404) rotate to be connected on support (1).

8. The multi-level stamping die capable of automatically feeding and discharging materials for automobile parts, as claimed in claim 1, wherein: the extraction mechanism (6) comprises a power plate (601), the power plate (601) is fixedly connected to the end face of the driving rotating shaft (303), the power plate (601) is connected with a power rod (602) in a rotating mode, the bottom of the power rod (602) is connected with a swinging plate (603) in a rotating mode, the swinging plate (603) is connected with a fourth rotating shaft (604) in a rotating mode, a support plate (605) is fixedly connected to the fourth rotating shaft (604), and an extraction frame (606) is connected to the support plate (605).

9. The multi-level stamping die for auto parts capable of feeding and discharging materials automatically as claimed in claim 8, wherein: draw frame (606) including slip connecting rod (6061), the bottom fixedly connected with of slip connecting rod (6061) snatchs frame (6062), snatch a plurality of sucking discs of bottom fixedly connected with (6063) of frame (6062), the surperficial sliding connection of slip connecting rod (6061) has cylinder cover (607), fixedly connected with connecting rod (608) on cylinder cover (607), connecting rod (608) and fourth pivot (604) all rotate and connect on support (1).

10. A stamping method for a multi-level stamping die capable of automatically feeding and discharging materials for automobile parts, which is characterized in that: the driving force is provided through the driving motor (2), the driving rotating shaft (303) is driven to rotate through the transmission of the chain, the driving rotating shaft (303) rotates to drive the first upper die (5) movably connected with the connecting piece (304) to move up and down, the stamping is realized, the limiting plates (305) are fixedly connected to the two sides of the first upper die (5) to limit the first upper die (5) during moving up and down, the swinging and the deviation of the first upper die are avoided, the connecting piece (304) is a structural component with a buffering effect, when the first upper die (5) moves down, the first upper die is contacted with a blank material, a certain buffering effect is achieved, the first upper die (5) is prevented from being suddenly and directly pressed down to cause the conditions that the die is damaged and the blank material is damaged, the stability of the whole automobile covering piece during primary forming is ensured, the whole driving rotating shaft (303) is designed into a crank shape, the structure shape of a crank shaft is used for realizing the up-and-down repeated movement of a first upper die, a first gear (306) fixed on a driving rotating shaft (303) rotates along with the crank shaft, a second gear (307) meshed with the first gear is also driven to rotate, the second gear (307) rotates to drive a round sleeve (401) to rotate, a poking rod (402) on the round sleeve (401) can poke a limit rotating plate (403) to rotate, each poking can drive the limit rotating plate (403) to rotate for 1/5 angles, and further a rotating die (7) is driven to rotate for 1/5 angles, so that automatic feeding and automatic rotating are carried out, because the rotating die (7) is arranged, and after the first process is finished and rotates for 1/5 angles, a second forming mechanism carries out secondary forming on a first formed covering part to realize multi-level punching, and a second level punching is realized, the driving rotating shaft (303) rotates to drive the first rotating shaft (310) to rotate in a belt transmission mode, the first rotating shaft (310) drives the two cams (311) to rotate, when the cams (311) rotate, the sliding column (313) is driven to press downwards, the second upper die (315) is controlled to perform second-time punch forming on the semi-finished product covering piece punched at the first time in a pressing-down process, so that multi-level punching is realized, then after the cams (311) rotate for a certain angle, the sliding column (313) is pushed to move upwards under the action of the contraction spring (316) so as to realize a resetting effect, next operation is waited, meanwhile, the power plate (601) at the other end is driven to rotate in the rotating process of the driving rotating shaft (303), the power plate (601) drives the power rod (602) to perform swing type telescopic motion, and further controls the reciprocating rotation of the swinging plate (603), the rotation of the swing plate (603) will drive the fourth rotating shaft (604) to move synchronously, and the support plate (605) fixed on the surface thereof will drive the extraction rack (606) to move, therefore, the process of material taking and material placing is realized, when the material is taken, the extracting frame (606) rotates to the outer side, a plurality of suckers (6063) are utilized to absorb the blank sheet material, namely the process of grabbing, and when the swinging plate (603) moves in a resetting way, the extracting frame (606) is controlled to move inwards, then the suction cup (6063) releases air pressure, so as to place the plate material sucked by the sucking disc (6063) on the surface of the rotating mould (7), and is positioned at the position of the containing cavity, and is finally clamped by a baffle (703) to prevent falling off, so that the whole processes of material grabbing, material discharging, primary pressure bearing and secondary pressure bearing are finally realized, and when the rotating die (7) rotates finally, the punched covering piece can automatically fall to the ground collection position under the action of gravity.

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