Punching device and punching method for outer plate of rear wall of automobile

Abstract

The invention discloses an automobile rear wall outer plate punching device which comprises a workbench and a rack, a supporting seat is arranged at the top end of the workbench, a punching piece is movably arranged on the rack in the longitudinal direction, and the punching piece is located above the supporting seat; a reserved hole site is formed in the middle of the supporting seat in a penetrating mode, an inner ring cavity is formed in the supporting seat, and a plurality of adsorption holes communicating with the inner ring cavity are formed in the two sides of the top end of the supporting seat. A temporary storage groove is formed in the position, corresponding to the reserved hole position, of the top end of the workbench, a connecting channel is formed in the workbench, and the connecting channel is connected with the output end of an arranged negative pressure generator. Through the arrangement of the adsorption path, the scrap removing path, the adjusting assembly and other structures, waste in the temporary storage tank is sucked and transferred through the same negative pressure source. According to the design, an additional electric control valve or independent scrap removing equipment is not needed, automatic switching of the adsorption function and the scrap removing function can be completed through mechanical linkage, waste accumulation is effectively avoided, and the machining cleanliness and the working efficiency are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile accessories, and particularly relates to a punching device and a punching method for an automobile rear wall outer plate. BACKGROUND

[0002] In the field of automobile manufacturing, punching processing of a vehicle body covering is one of key process links. A large thin plate workpiece represented by an automobile rear wall outer plate usually needs to be punched at specific positions for installation of functional components such as lamps, hinges and sealing strips.

[0003] The existing punching device usually relies on an external independent scrap removal system (such as a blowing device or manual cleaning) to remove metal scraps generated by punching, which not only increases the complexity and energy consumption of the equipment, but also has low cleaning efficiency, and the scraps are easy to accumulate in the working area, affecting subsequent processing and even causing equipment failure. SUMMARY

[0004] In view of the problems in the prior art, the application provides the following technical scheme. The application provides a punching device for an automobile rear wall outer plate, comprising: a workbench and a rack, the top end of the workbench is provided with a support seat, the rack is provided with a punching element movably in the longitudinal direction, and the punching element is located above the support seat; a reserved hole is formed in the middle of the support seat, an inner ring cavity is arranged in the support seat, and a plurality of adsorption holes communicating with the inner ring cavity are arranged on both sides of the top end of the support seat; a temporary storage groove is arranged at the position corresponding to the reserved hole at the top end of the workbench, and a connecting channel is arranged in the workbench, wherein the connecting channel is connected with the output end of the arranged negative pressure generator; an adsorption path is arranged in communication with one end of the connecting channel, the other end of the adsorption path communicates with the inner ring cavity, a scrap removal path is arranged in communication with one end of the connecting channel, and the other end of the scrap removal path communicates with the temporary storage groove; The adjusting assembly comprises: a first blocking piece and a second blocking piece movably arranged in the adsorption path and the scrap removal path, respectively. In the initial state, the second blocking piece blocks the scrap removal path, the adsorption path cooperates with the connecting channel to form a passage, a negative pressure is formed in the inner ring cavity, and the workpiece located at the top end of the support seat is adsorbed and fixed through the adsorption holes; In the state of punching downward by the punching element, the first blocking piece and the second blocking piece move synchronously with the punching element, after being positioned, the first blocking piece blocks the adsorption path, the scrap removal path cooperates with the connecting channel to form a passage, and the scrap in the temporary storage groove is transferred and stored.

[0005] As a preferred embodiment of the above technical scheme, the adsorption path comprises a containing cavity one arranged on one side of the workbench and an adsorption channel, and the end of the adsorption channel communicates with the inner ring cavity. The scrap removal path comprises a receiving cavity II arranged on the other side of the workbench and a scrap removal channel, the end of the scrap removal channel being in communication with the temporary storage groove.

[0006] As a preferred embodiment of the above technical solution, the adjusting assembly further comprises guide columns I vertically fixed on both sides of the top of the workbench, and a sliding block I and a sliding block II are respectively sleeved on the guide columns I, and the punching member is fixedly connected with the sliding block I and the sliding block II on both sides through a connecting arm. A guide column II is vertically fixed in each of the receiving cavity I and the receiving cavity II, the plug I is sleeved on the guide column II in the receiving cavity I, the plug II is sleeved on the guide column II in the receiving cavity II, and the plug I and the plug II are respectively fixedly connected with the sliding block I and the sliding block II on the side through the connecting rod.

[0007] As a preferred embodiment of the above technical solution, a plurality of fixed insertion columns are arranged on the top of the support seat, a plurality of insertion holes in communication with the inner ring cavity are arranged at the bottom end of the support seat, and the fixed insertion columns and the insertion holes are sealingly and insertingly matched, wherein the fixed insertion columns at positions corresponding to the adsorption channels are hollow inside and in communication with the adsorption channels.

[0008] As a preferred embodiment of the above technical solution, the workbench comprises a base and side sealing plates on both sides, and the base and the side sealing plates cooperatively form the closed receiving cavity I and the receiving cavity II.

[0009] As a preferred embodiment of the above technical solution, a sealing door is hingedly arranged on the side sealing plate on the side of the scrap removal path, a pin seat is fixedly arranged at the bottom of the outer end face of the side sealing plate, an installation groove is formed in the inner side of the pin seat, a stop pin movably arranged in the longitudinal direction is arranged in the installation groove, and a spring fixedly connecting the stop pin and the inner bottom wall of the installation groove is further arranged in the installation groove.

[0010] As a preferred embodiment of the above technical solution, a filter screen is embedded at both ends of the connecting channel.

[0011] A punching device for an automobile rear outer panel is also provided, which comprises the automobile rear outer panel punching device according to any one of the above technical solutions. S1, workpiece placement and adsorption fixation: placing the automobile rear outer panel on the top end of the support seat, starting the negative pressure generator, and adsorbing the workpiece through the adsorption path, the plug II blocking the scrap removal path, and the adsorption path and the connecting channel being in communication to form a passage; S2, punching execution and linkage switching: the punching member descending for punching, the punching member driving the plug I and the plug II to synchronously descend, the plug I cutting off the adsorption path when the punching is completed, releasing the workpiece, connecting the scrap removal path, and sucking and transferring the accumulated punching chips in the groove; S3, device reset: turn off the negative pressure generator, the punch part up reset, drive the block one and the block two synchronous up, the system returns to the initial state, can prepare the next cycle through the negative pressure generator again.

[0012] The beneficial effects of the present application are: (1) The punch device can realize automatic adsorption and fixing of the workpiece and automatic cleaning after punching through the adsorption path, the chip removal path and the adjusting assembly, etc. In the initial stage, the negative pressure enters the inner ring cavity through the connecting channel and the adsorption path and adsorbs the workpiece through the adsorption hole, and at the same time the chip removal path is blocked to ensure stable positioning. During the punching process, the punch part moves downward to drive the block to move synchronously, and at the same time the gas path switching is realized - the adsorption path is blocked to release the workpiece, and the chip removal path is connected, and the waste in the temporary storage groove is sucked and transferred by using the same negative pressure source. This design does not need additional electric control valve or independent chip removal equipment, and the automatic conversion of adsorption and chip removal function can be completed through mechanical linkage, which effectively avoids waste accumulation and improves processing cleanliness and operation efficiency.

[0013] (2) The fixed insertion column is arranged, the alignment of the support seat is facilitated, the support seat can be quickly installed and disassembled, cleaning, maintenance or replacement is facilitated, the fixed insertion column at the outlet position of the adsorption channel is hollow inside and connected with the adsorption channel, and part of the complete air flow channel is formed, so that the negative pressure can be smoothly transmitted to the inner ring cavity, and then uniformly distributed to the surface of the workpiece through the adsorption hole, so as to ensure the adsorption effect and positioning accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 shows the overall front view of the punch device; Figure 2 Fig. 2 shows the partial sectional view of the punch device (state one); Figure 3 Fig. 3 shows the partial sectional view of the punch device (state two); Figure 4 Fig. 4 shows the top view of the support seat; Figure 5 Fig. 5 shows the structure of the sealing door; Figure 2 Fig. 6 shows the enlarged structure diagram of A in Fig. 5; Figure 6 Fig. 7 shows the structure of the sealing door; Figure 7 Fig. 8 shows the enlarged structure diagram of B in Fig. 7; Figure 6 ​10, workbench; 11, base; 12, temporary storage groove; 13, accommodating cavity I; 14, accommodating cavity II; 15, adsorption channel; 16, chip removal channel; 17, fixed insertion column; 18, connecting channel; 19, side sealing plate; 20, support seat; 21, inner ring cavity; 22, adsorption hole; 23, reserved hole position; 30, rack; 40, punching piece; 41, driving piece; 51, guide column I; 52, sliding block I; 53, sliding block II; 54, connecting rod; 55, block I; 56, block II; 60, negative pressure generator; 71, sealing door; 72, pin seat; 73, spring; 74, stop pin; 80, filter screen. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely below in conjunction with the embodiments.

[0016] EMBODIMENT As shown in the accompanying drawings, Figure 1 , Figure 1 It shows the overall front view schematic diagram of the punching device; The automobile rear wall outer plate punching device comprises: A workbench 10 and a rack 30, the top end of the workbench 10 is provided with a support seat 20, and the rack 30 is movably provided with a punching piece 40 in the longitudinal direction, and the punching piece 40 is located above the support seat 20.

[0017] When punching, the automobile rear wall outer plate is placed on the support seat 20, and the punching piece 40 punches it.

[0018] The rack 30 is provided with a driving piece 41, and the output end of the driving piece 41 is fixedly connected with the punching piece 40.

[0019] The driving piece 41 is used for providing power to drive the punching piece 40 to move up and down, and the driving piece 41 can select different types of driving modes (such as air cylinder, hydraulic cylinder, etc.) according to production needs, and the punching piece 40 is a component that directly contacts and penetrates through the rear wall outer plate, and its shape and size are customized according to the hole to be punched.

[0020] As shown in the accompanying drawings, Figure 2 , Figure 3 , Figure 4 , Figure 2 It shows the partial cross-sectional view schematic diagram of the punching device (state one); Figure 3 It shows the partial cross-sectional view schematic diagram of the punching device (state two); Figure 4 It shows the top view schematic diagram of the support seat; The middle part of the support seat 20 is provided with a reserved hole position 23, the inside of the support seat 20 is provided with an inner ring cavity 21, and the top end of the support seat 20 is provided with a plurality of adsorption holes 22 which are in communication with the inner ring cavity 21; The workbench 10 top end corresponds to the reserved hole position 23 position is provided with the temporary storage groove 12, the workbench 10 inside is provided with the connecting channel 18, wherein the connecting channel 18 is connected with the output end of the negative pressure generator 60; One end of the connecting channel 18 is communicated with the adsorption path, the other end of the adsorption path is communicated with the inner ring cavity 21, one end of the connecting channel 18 is communicated with the chip removal path, the other end of the chip removal path is communicated with the temporary storage groove 12; It also includes an adjusting assembly, which includes: respectively movably arranged in the adsorption path, the chip removal path in the block one 55 and the block two 56; The initial state (such as Figure 2 The block two 56 blocks the chip removal path, the adsorption path cooperates with the connecting channel 18 to form a passage, the inner ring cavity 21 forms a negative pressure, and the workpiece fixed on the top end of the support seat 20 is adsorbed by the adsorption hole 22; The block one 55 and the block two 56 move synchronously with the punch 40 in the state of the punch 40 moving down to punch, and after being in place (such as Figure 3 The block one 55 blocks the adsorption path, and the chip removal path cooperates with the connecting channel 18 to form a passage, and the chip in the temporary storage groove 12 is transferred and stored.

[0021] The support seat 20 is provided with a reserved hole position 23 in the middle, which provides a space for the punch 40 to pass through during punching to avoid interference, and at the same time enables the waste produced by the blanking to fall smoothly. The support seat 20 is provided with an inner ring cavity 21 inside, which is used as a negative pressure adsorption airflow channel, and its function is to uniformly distribute negative pressure to multiple adsorption holes 22. When the inner ring cavity 21 forms a negative pressure, the adsorption holes 22 generate adsorption force to firmly adsorb and fix the automobile rear quarter panel placed on the top end of the support seat 20, preventing displacement or vibration during punching, thereby ensuring the accuracy of the punching position and the processing quality.

[0022] The temporary storage groove 12 provided at the top end of the workbench 10 corresponding to the reserved hole position 23 is used to accommodate the waste (i.e. chips) produced during the punching process, to avoid the accumulation of waste affecting the operation of the equipment or polluting the working environment. The connecting channel 18 provided inside the workbench 10 is connected with the output end of the negative pressure generator 60, providing an airflow power source for the entire adsorption and chip removal system.

[0023] The other end of the adsorption path is communicated with the inner ring cavity 21, which is used to introduce negative pressure into the inner ring cavity 21 in the initial stage to achieve adsorption and fixation of the workpiece; the other end of the chip removal path is communicated with the temporary storage groove 12, which is used to transfer the waste in the temporary storage groove 12 to other areas through negative pressure airflow after punching is completed.

[0024] The block one 55 and the block two 56 are movably arranged in the adsorption path and the chip removal path respectively, and can move synchronously with the movement of the punch 40.

[0025] In the initial state, the blocking block two 56 is located at the debris removal path to block it; at this time, the adsorption path is communicated with the connecting channel 18 to form a passage. The negative pressure generator 60 works, and the negative pressure enters the inner ring cavity 21 through the connecting channel 18 and the adsorption path, and fixes the workpiece through the adsorption hole 22, so as to ensure the accurate positioning of the workpiece.

[0026] When the punching member 40 starts to move downward to perform the punching action, the blocking block one 55 and the blocking block two 56 move downward synchronously with the punching member 40. After the punching member 40 reaches the punching completion position, the blocking block one 55 moves to the adsorption path to block it, cuts off the adsorption passage, and releases the adsorption force on the workpiece; at the same time, the blocking block two 56 leaves the original position, so that the debris removal path is communicated with the connecting channel 18 to form a new airflow passage.

[0027] At this time, the negative pressure enters the debris removal path through the connecting channel 18, and then acts on the temporary storage tank 12 to generate a negative pressure suction force, so as to transfer and store the punching waste (scrap member) accumulated in the temporary storage tank 12 in a gas flow conveying manner, and realize automatic debris removal.

[0028] Specifically, the two ends of the connecting channel 18 are embedded with filter screens 80.

[0029] The filter screen 80 on the side of the adsorption path is used to prevent external dust, debris or foreign matters from flowing back into the connecting channel 18 from the adsorption hole 22 under the action of negative pressure, so as to avoid blocking the airflow passage or polluting the negative pressure generator 60, thereby ensuring the long-term stable operation of the adsorption system.

[0030] The filter screen 80 on the side of the debris removal path is used to control the size of the particulate matter entering the connecting channel 18 during the debris removal stage. When the negative pressure acts on the temporary storage tank 12 to transfer the scrap member generated by punching, the filter screen 80 allows the airflow to pass through, while intercepting large pieces of waste or metal debris to prevent them from entering the inside of the connecting channel 18 to cause blockage or mechanical damage to the negative pressure generator 60.

[0031] The adsorption path includes a containing cavity one 13 arranged on one side inside the workbench 10 and an adsorption channel 15, and the end of the adsorption channel 15 is communicated with the inner ring cavity 21.

[0032] The debris removal path includes a containing cavity two 14 arranged on the other side inside the workbench 10 and a debris removal channel 16, and the end of the debris removal channel 16 is communicated with the temporary storage tank 12.

[0033] The adjusting assembly further includes guide columns one 51 vertically fixedly arranged on both sides of the top of the workbench 10, and sliding blocks one 52 and sliding blocks two 53 are respectively slidably sleeved on the guide columns one 51, and the punching member 40 is fixedly connected with the sliding blocks one 52 and the sliding blocks two 53 on both sides through connecting arms.

[0034] The guide column two is vertically and fixedly arranged in the accommodating cavity one 13 and the accommodating cavity two 14, the block one 55 is slidably sleeved on the guide column two in the accommodating cavity one 13, the block two 56 is slidably sleeved on the guide column two in the accommodating cavity two 14, and the block one 55 and the block two 56 are fixedly connected with the slider one 52 and the slider two 53 on the side respectively through the connecting rod 54.

[0035] The adsorption path is composed of the accommodating cavity one 13 arranged on one side inside the workbench 10 and the adsorption channel 15. The accommodating cavity one 13 is the movement space and the initial accommodating area of the block one 55, and the adsorption channel 15 is the airflow channel connecting the connecting channel 18 and the inner ring cavity 21, the end of which is communicated with the inner ring cavity 21, so that the negative pressure can be smoothly transmitted to the adsorption hole 22.

[0036] The scrap removal path is composed of the accommodating cavity two 14 arranged on the other side inside the workbench 10 and the scrap removal channel 16. The accommodating cavity two 14 provides the sliding space for the block two 56, and the end of the scrap removal channel 16 is communicated with the temporary storage groove 12, so that the negative pressure airflow is guided into the temporary storage groove 12 in the scrap removal stage, and the punching waste is sucked and transferred.

[0037] The punching piece 40 is fixedly connected with the slider one 52 and the slider two 53 on both sides through the connecting arm. Therefore, the up-down movement of the punching piece 40 directly drives the slider one 52 and the slider two 53 to synchronously ascend and descend, forming mechanical linkage.

[0038] The block one 55 is slidably sleeved on the guide column two in the accommodating cavity one 13, the block two 56 is slidably sleeved on the guide column two in the accommodating cavity two 14, and the two are fixedly connected with the slider one 52 and the slider two 53 on the side respectively through the connecting rod 54, so as to realize movement transmission.

[0039] Initial state: The punching piece 40 is located at the upper position, the slider one 52 and the slider two 53 are at the high position, the block one 55 is located at the upper part of the accommodating cavity one 13, the adsorption channel 15 is communicated with the connecting channel 18, the block two 56 is located at the high position, the scrap removal channel 16 is blocked, the negative pressure generator 60 is started, the negative pressure area is formed at the top end of the support seat 20, the automobile rear wall outer plate is adsorbed and fixed on the support seat 20, and precise positioning is realized.

[0040] Punching stage: The punching part 40 moves downward under the drive of the drive part 41, and drives the slider 1 52 and slider 2 53 to move downward along the guide post 1 51 through the connecting arm. The slider 1 52 drives the block block 1 55 downward through the connecting rod 54, and the slider 2 53 drives the block block 2 56 downward through the connecting rod 54. When the punching part 40 completes punching, the block block 1 55 moves to the lower position, completely blocking the connection between the adsorption channel 15 and the connecting channel 18, cutting off the negative pressure passage and releasing the workpiece. At the same time, the block block 2 56 moves to the lower position, releasing the blockage of the chip removal channel 16, so that the chip removal channel 16 and the connecting channel 18 are connected, forming a negative pressure airflow, which sucks and transfers the punching waste (chips) accumulated in the temporary storage tank 12 to the receiving cavity 2 14.

[0041] By turning off the negative pressure generator 60, the punched part 40 can be reset, and the workpiece can be unloaded and transferred.

[0042] like Figure 5 As shown, Figure 5 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram; Specifically, the top of the base 11 is provided with several fixed inserts 17, and the bottom of the support base 20 is provided with several insertion holes that communicate with the inner ring cavity 21. The fixed inserts 17 and the insertion holes are sealed and inserted into each other. The fixed insert 17 at the position corresponding to the adsorption channel 15 is hollow inside and connected to the adsorption channel 15.

[0043] The fixing post 17 is disposed on the top of the base 11. The fixing post 17 extends vertically upward from the surface of the base 11, has a smooth outer wall, and has a certain guide taper to facilitate alignment and insertion. The fixed insert 17, located at the outlet of the adsorption channel 15, is hollow and communicates with the inner annular cavity 21 inside the support base 20, forming part of the airflow channel. A sealing structure, such as an O-ring, rubber gasket, or sealing groove, is provided between the contact surfaces of the fixed insertion post 17 and the insertion hole to ensure that an airtight connection is formed after the two are inserted to prevent negative pressure leakage.

[0044] like Figure 6 , Figure 7 As shown, Figure 6 The diagram shown is a structural schematic of a sealed door; Figure 7 What is shown is Figure 6 Enlarged schematic diagram of the structure at point B in the diagram; The workbench 10 includes a base 11 and side sealing plates 19 on both sides. The base 11 and the side sealing plates 19 cooperate to form a closed accommodating cavity 13 and an accommodating cavity 2 14.

[0045] The base 11 and the side sealing plate 19 adopt a split structure, facilitating the installation of internal components and later maintenance. For example, during assembly, the guide column II, the block I 55, the connecting rod 54, etc. can be installed in the corresponding positions of the base 11, and then the side sealing plate 19 is installed to complete the sealing (welding or bolt locking and fixing), thereby simplifying the assembly process.

[0046] The side sealing plate 19 on the side where the chip removal path is located is hingedly provided with a sealing door 71. The outer end face of the side sealing plate 19 is fixedly provided with a pin seat 72, and an installation groove is formed in the inner side of the pin seat 72. A stop pin 74 is movably arranged in the installation groove in the longitudinal direction, and a spring 73 is arranged in the installation groove to fixedly connect the stop pin 74 and the inner bottom wall of the installation groove.

[0047] The sealing door 71 can be opened to clean the punched waste temporarily stored in the containing cavity II 14.

[0048] The stop pin 74 can be in a pop-out state under the action of the spring 73, used to lock the sealing door 71, to ensure that it will not be accidentally opened during equipment operation. When cleaning is needed, the stop pin 74 only needs to be manually pressed inward to compress the spring 73, so as to unlock and open the sealing door 71, which is simple to operate.

[0049] The contact surface of the sealing door 71 and the side sealing plate 19 is usually also provided with a sealing gasket or a sealing groove, to ensure good air tightness in the closed state, prevent negative pressure leakage, and ensure the airflow efficiency in the chip removal stage.

[0050] A punching method for the automobile rear outer plate is also provided, which adopts the punching device for the automobile rear outer plate and includes the following steps: S1, workpiece placement and adsorption fixation: the automobile rear outer plate is placed on the top end of the support seat 20, the negative pressure generator 60 is started, the negative pressure is adsorbed by the adsorption path, the block II 56 blocks the chip removal path, and the adsorption path and the connecting channel 18 are communicated to form a passage; S2, punching execution and linkage switching: the punching piece 40 descends to punch, the block I 55 and the block II 56 are synchronously lowered by the punching piece 40, the adsorption passage is cut off by the block I 55 when the punching is completed, the workpiece is released, the chip removal path is communicated, and the punched chips stored in the groove are sucked and transferred; S3, device reset: the negative pressure generator 60 is turned off, the punching piece 40 is reset upward, the block I 55 and the block II 56 are synchronously moved upward, and the system returns to the initial state. The next cycle can be prepared by starting the negative pressure generator 60 again.

[0051] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them.

Claims

1. A punching device for an automobile quarter outer panel, characterized by comprising: Include: Workbench (10) and frame (30), the workbench (10) top end is provided with support seat (20), the frame (30) is provided with punching part (40) in the longitudinal direction, the punching part (40) is located above support seat (20); The middle part of the support seat (20) is provided with a reserved hole (23), and the inside of the support seat (20) is provided with an inner ring cavity (21), and the top of the support seat (20) is provided with a plurality of adsorption holes (22) on both sides, which are connected with the inner ring cavity (21); The workbench (10) is provided with a temporary storage groove (12) at the top corresponding to the reserved hole (23), and the inside of the workbench (10) is provided with a connecting channel (18), wherein the connecting channel (18) is connected with the output end of the negative pressure generator (60) provided; One end of the connecting channel (18) is provided with an adsorption path, and the other end of the adsorption path is connected with the inner ring cavity (21), and one end of the connecting channel (18) is provided with a chip removal path, and the other end of the chip removal path is connected with the temporary storage groove (12); It also includes an adjusting assembly, the adjusting assembly includes: respectively setting in adsorption path, chip removal path in block one (55) and block two (56); In the initial state, block two (56) blocks the chip removal path, the adsorption path and the connecting channel (18) form a passage, a negative pressure is formed in the inner ring cavity (21), and the workpiece is adsorbed and fixed on the top of the support seat (20) through the adsorption hole (22); In the state of punching down of the punching part (40), the block one (55) and the block two (56) move synchronously with the punching part (40), after positioning, the block one (55) blocks the adsorption path, and the chip removal path and the connecting channel (18) form a passage, and the chip in the temporary storage groove (12) is transferred and stored.

2. The automobile quarter panel piercing device according to claim 1, wherein The adsorption path includes a containing cavity one (13) and an adsorption channel (15) provided on one side of the workbench (10), and the end of the adsorption channel (15) is connected with the inner ring cavity (21); The chip removal path includes a containing cavity two (14) and a chip removal channel (16) provided on the other side of the workbench (10), and the end of the chip removal channel (16) is connected with the temporary storage groove (12).

3. The automobile quarter panel piercing device of claim 2, wherein The adjusting assembly further includes a guide column one (51) vertically fixed on both sides of the top of the workbench (10), a sliding block one (52) and a sliding block two (53) are respectively slidably sleeved on the guide column one (51), and the punching part (40) is fixedly connected with the sliding block one (52) and the sliding block two (53) on both sides through a connecting arm; The containing cavity one (13) and the containing cavity two (14) are both vertically fixed with guide columns two, the block one (55) is slidably sleeved on the guide column two in the containing cavity one (13), the block two (56) is slidably sleeved on the guide column two in the containing cavity two (14), and the block one (55) and the block two (56) are both fixedly connected with the sliding block one (52) and the sliding block two (53) on the side through the connecting rod (54) provided.

4. The automobile quarter panel piercing device of claim 2, wherein The support seat (20) is provided with a plurality of fixed insertion columns (17) at the top, and is provided with a plurality of insertion holes in communication with the inner ring cavity (21) at the bottom end, the fixed insertion column (17) is in sealed plug-in cooperation with the insertion hole, and the fixed insertion column (17) at the position corresponding to the adsorption channel (15) is hollow and in communication with the adsorption channel (15).

5. The automobile quarter panel piercing device of claim 2, wherein The workbench (10) comprises a base (11) and side sealing plates (19) on both sides, and the base (11) and the side sealing plates (19) cooperate to form closed accommodation cavities (13) and (14).

6. The automobile quarter panel piercing device according to claim 5, wherein The side sealing plate (19) on the side where the debris removal path is located is hingedly provided with a sealing door (71), the outer end face bottom of the side sealing plate (19) is fixedly provided with a pin seat (72), an installation groove is formed in the inner side of the pin seat (72), a stop pin (74) is movably arranged in the installation groove in the longitudinal direction, and a spring (73) is arranged in the installation groove and fixedly connected with the inner bottom wall of the installation groove.

7. The automobile quarter panel piercing device of claim 1, wherein The both ends of the connecting channel (18) are embeddedly provided with filter screens (80).

8. A method of piercing an automobile quarter panel outer panel, characterized by, The automobile rear wall outer plate punching device comprises the following steps: S1, workpiece placement and adsorption fixation: placing the automobile rear wall outer plate at the top end of the support seat (20), starting the negative pressure generator (60), and adsorbing the workpiece through the adsorption path, the second block (56) blocks the debris removal path, and the adsorption path and the connecting channel (18) are in communication to form a passage; S2, punching execution and linkage switching: the punch (40) is lowered to punch, the punch (40) drives the first block (55) and the second block (56) to move downward synchronously, when the punching is completed, the first block (55) cuts off the adsorption path, releases the workpiece, connects the debris removal path, and sucks and transfers the accumulated punching debris in the groove; S3, device reset: closing the negative pressure generator (60), the punch (40) is raised to reset, driving the first block (55) and the second block (56) to move upward synchronously, and the system returns to the initial state, and the next cycle can be prepared by starting the negative pressure generator (60) again.

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