Automobile sheet metal part gantry shearing device and shearing method thereof

Abstract

The invention discloses an automobile sheet metal part gantry shearing device and a shearing method thereof.The automobile sheet metal part gantry shearing device comprises a base, a sheet metal part moving assembly and a shearing assembly located above the sheet metal part moving assembly, the sheet metal part moving assembly is installed on the base, and the shearing assembly corresponds to the sheet metal part moving assembly; the shearing assembly is used for machining the sheet metal parts on the sheet metal part moving assembly; wherein the sheet metal part moving assembly comprises a moving assembly X moving shaft, a first driving assembly and a clamping assembly, the moving assembly X moving shaft is installed on the base, the clamping assembly is in sliding connection with the moving assembly X moving shaft, the clamping assembly is used for clamping sheet metal parts, and the first driving assembly is used for driving the clamping assembly to move along the moving assembly X moving shaft. According to the gantry shearing device for the automobile sheet metal parts, the automation degree is high, human input is almost not needed, the shearing efficiency is greatly improved, and the situation that the shearing knife jumps and is damaged when encountering the sheet metal parts with high hardness can be avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of gantry shearing devices for automobile sheet metal parts, and particularly relates to a gantry shearing device for automobile sheet metal parts and a shearing method thereof. Background Art

[0002] Sheet metal is a comprehensive cold working process mainly for metal sheets, including shearing, punching / cutting / combining, folding, welding / riveting / splicing, forming, etc., and is widely used in the field of automobile processing, such as the processing of automobile bodies. The products processed by the sheet metal process are sheet metal parts.

[0003] When processing some automobile sheet metal parts, a shearing device is required to cut the sheet metal parts into two small segments as needed. However, the commonly used shearing device can only play a shearing role and cannot automatically load the sheet metal parts and unload the sheared sheet metal parts. Usually, workers continuously feed the sheet metal parts into the device, which leads to over-reliance on manual labor during the processing and low shearing efficiency. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the present invention provides a gantry shearing device for automobile sheet metal parts and a shearing method thereof. The gantry shearing device for automobile sheet metal parts of the present invention has a high degree of automation, requires almost no manual input, greatly improves the shearing efficiency, and can avoid the tool jumping and damage when the shearing tool encounters sheet metal parts with relatively high hardness.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A gantry shearing device for automobile sheet metal parts, comprising a base, a sheet metal part moving assembly, and a shearing assembly located above the sheet metal part moving assembly. The sheet metal part moving assembly is installed on the base, and the shearing assembly is arranged corresponding to the sheet metal part moving assembly for processing the sheet metal parts on the sheet metal part moving assembly. Among them, the sheet metal part moving assembly includes a moving assembly X moving shaft installed on the base, a first driving assembly, and a clamping assembly slidably connected to the moving assembly X moving shaft. The clamping assembly is used for clamping the sheet metal parts, and the first driving assembly is used for driving the clamping assembly to move along the moving assembly X moving shaft.

[0006] Furthermore, the shearing assembly includes a moving beam, guide rails, a second driving assembly, and a shearing head fixedly installed on the moving beam. The number of the guide rails is two and they are arranged parallel to each other on the base. The guide rails are arranged along the Y-axis direction of the base. The two ends of the moving beam are slidably matched with the guide rails. The moving beam can slide under the limitation of the two guide rails through the second driving assembly. The shearing head is fixed on one side of the moving beam and is located above the base.

[0007] Furthermore, the shearing head includes a shock absorption component, a hydraulic cylinder, a shearing knife, and a guide rod. The shock absorption component is fixed to one side of the moving beam, and the lower part of the shock absorption component fixes the hydraulic cylinder. One end of the hydraulic cylinder away from the shock absorption component is the output end, and the shearing knife is connected to the output end. A limiting plate is also installed at one end of the hydraulic cylinder away from the shock absorption component. There are two guide rods which are vertically arranged. The guide rods are located on both sides of the hydraulic cylinder. One end of each guide rod passes through the limiting plate and is fixed to the shearing knife.

[0008] Furthermore, limiting structures extend away from the hydraulic cylinder on both sides of the limiting plate.

[0009] Furthermore, the shock absorption component includes a rotating component, a first spring, a bottom mounting plate, and a push plate. The push plate and the bottom mounting plate are arranged opposite to each other and are parallel to each other. The rotating component is movably installed on the side of the bottom mounting plate facing away from the driving component. A connecting rod is connected to the rotating component away from the bottom mounting plate. The connecting rod is arranged parallel to the bottom mounting plate. Both ends of the connecting rod are respectively connected to the side surface of a telescopic cylinder. One end of each telescopic cylinder is fixed to the bottom mounting plate, and the other end is fixed to one side of the push plate. The connecting rod passes through the first spring. There are two first springs which are correspondingly arranged on both sides of the rotating component, so that when the push plate is subjected to the acting force of the workpiece to be clamped, it can move towards the bottom mounting plate against the resistance of the first spring.

[0010] Furthermore, the rotating component includes a rotating cylinder, a hinged rod, and a moving ring. The rotating cylinder is fixedly connected to the push plate. Two hinged rods are hinged to one end of the rotating cylinder away from the push plate. The other ends of the two hinged rods are respectively hinged to a moving ring. The moving ring is sleeved on the connecting rod and can move along the axial direction of the connecting rod. The side surfaces of the hinged rings respectively abut against a first spring, and the two hinged rods are arranged with an acute angle between them.

[0011] Furthermore, a second spring is sleeved on the telescopic cylinder. One end of the second spring abuts against one side of the push plate, and the second spring applies a force to the telescopic cylinder to move away from the push plate.

[0012] Furthermore, the clamping component includes a processing table, a clamping motor, and clamping plates. The processing table is slidably connected to the X-axis of the moving component through a connecting head. The processing table has a processing plane for placing sheet metal parts. The shearing knife can move from above towards the processing plane. A shearing groove for the shearing knife to extend into is opened on the processing plane. There are two clamping plates which are slidably installed on the processing plane of the processing table. The two clamping plates are arranged opposite to each other and are used to fix the sheet metal part between them. The clamping motor is installed on one side of the processing table. The output end of the clamping motor is drivingly connected to a transmission lead screw. The transmission lead screw is threadedly connected to the two clamping plates.

[0013] Further, the first driving component and the second driving component can be servo motors or stepper motors.

[0014] In addition, the present invention also claims a shearing method, which uses a gantry shearing device for automotive sheet metal parts as described in any one of the above, and includes the following steps: S1. Start the first driving component to move the processing table along the X moving axis of the moving component to the feeding side of the base, place the sheet metal part on the processing table, and after the clamping motor is powered on, drive the clamping plate to fix the sheet metal part; S2. The first driving component drives the processing table to move along the X moving axis of the moving component to the processing station of the base, drives the hydraulic cylinder to drive the shearing knife to move towards the processing table for shearing, and after shearing is completed, drives the hydraulic cylinder to retract the shearing knife; S3. Start the first driving component again to move the processing table along the X moving axis of the moving component to the discharging side of the base, the debris generated by shearing drops into the shearing groove, after shearing is completed, collect the sheet metal part, and clean the debris in the shearing groove; S4. Start the first driving component to move the processing table along the X moving axis of the moving component to the processing station of the base and wait for the next shearing.

[0015] Compared with the prior art, the beneficial effects of this solution are: The present invention provides a gantry shearing device for automotive sheet metal parts and its shearing method, including a base, a sheet metal part moving component, and a shearing component located above the sheet metal part moving component. The sheet metal part moving component is installed on the base, the shearing component is arranged corresponding to the sheet metal part moving component, and the shearing component is used to process the sheet metal part on the sheet metal part moving component. The present invention installs the X moving axis of the moving component on the base and drives the clamping component to move through the first driving component, thereby solving the technical problem that the shearing device in the prior art cannot automatically load the sheet metal part and unload the sheared sheet metal part. The gantry shearing device for automotive sheet metal parts of the present invention has a high degree of automation, almost no manual input is required, the shearing efficiency is greatly improved, and the jumping and damage of the shearing knife when encountering sheet metal parts with greater hardness can be avoided. Description of the Drawings

[0016] Figure 1 It is a top view of the gantry shearing device for automotive sheet metal parts; Figure 2 It is a structural schematic diagram of the gantry shearing device for automotive sheet metal parts; Figure 3 It is a structural schematic diagram of the shearing head; Figure 4 It is a schematic diagram of the shock absorption component of the shearing head; Figure 5 It is a structural schematic diagram of the clamping component.

[0017] The reference numerals are as follows in sequence: Base 1, processing base 11, sheet metal moving assembly 2, moving assembly X moving shaft 21, first driving assembly 22, clamping assembly 23, processing table 231, clamping motor 232, clamping plate 233, processing plane 234, shearing groove 235, limiting head 236, connecting column 24, shearing assembly 3, moving beam 31, guide rail 32, second driving assembly 33, shearing head 34, first spring 341, bottom mounting plate 342, push plate 343, hydraulic cylinder 344, shearing knife 345, guide rod 346, limiting plate 347, rotating member 35, telescopic cylinder 351, connecting rod 353, rotating cylinder 354, articulated rod 355, moving ring 356, second spring 357. Detailed implementation manners

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] A gantry shearing device for automotive sheet metal parts, as Figure 1 and Figure 2 shown, includes a base 1, a sheet metal moving assembly 2 and a shearing assembly 3 located above the sheet metal moving assembly 2. The sheet metal moving assembly 2 is installed on the base 1, and the shearing assembly 3 is arranged corresponding to the sheet metal moving assembly 2. The shearing assembly 3 is used for processing the sheet metal on the sheet metal moving assembly 2; Wherein, the sheet metal moving assembly 2 includes a moving assembly X moving shaft installed on the base 1, a first driving assembly 22 and a clamping assembly 23 slidably connected to the moving assembly X moving shaft. The clamping assembly 23 is used for clamping the sheet metal, and the first driving assembly 22 is used for driving the clamping assembly 23 to move along the moving assembly X moving shaft.

[0020] According to a specific embodiment provided by the present invention, the base 1 is of a plate structure. One side of the base 1 is set as the feeding side, and the side of the base 1 opposite to the feeding side is set as the discharging side. A processing station is further arranged on the base 1. The processing station can be located below the shearing assembly 3. The sheet metal moving assembly 2 is used for moving the sheet metal from the feeding side of the base 1 to the processing station for shearing, and then moving the processed sheet metal to the discharging side of the base 1. Specifically, the length of the moving assembly X moving shaft corresponds to the width of the base 1. The clamping assembly 23 is used for clamping and fixing the sheet metal, and the clamping assembly 23 moves along the moving assembly X moving shaft under the action of the first driving assembly 22. The present invention installs the moving assembly X moving shaft on the base 1 and drives the clamping assembly 23 to move through the first driving assembly 22, thereby solving the technical problem that the shearing device in the prior art cannot realize automatic feeding of the sheet metal and discharging of the sheared sheet metal. Through the automatic loading and unloading processing method, the present invention improves the shearing processing efficiency.

[0021] Furthermore, if Figure 3 As shown, the shearing assembly 3 includes a moving beam 31, a guide rail 32, a second drive assembly 33, and a shearing head 34 fixedly mounted on the moving beam 31. There are two guide rails 32, which are arranged parallel to each other on the base 1. The guide rails 32 are arranged along the Y-axis direction of the base 1. The two ends of the moving beam 31 slide with the guide rails 32. The moving beam 31 can slide under the restriction of the two guide rails 32 through the second drive assembly 33. The shearing head 34 is fixed to one side of the moving beam 31 and is located above the base 1. The position of the base 1 corresponding to the shearing head 34 is a processing station, and the processing station can be installed with a processing seat 11. The function of the processing seat 11 is to allow the clamping assembly 23 to be better placed on the processing seat 11.

[0022] According to a specific embodiment provided by the present invention, a connecting plate can be fixed on one side of the movable beam 31, and the connecting plate is used to connect and install the shearing head 34. The shearing head 34 can be set in the middle position of the movable beam 31, and the guide rail 32 is set along the Y-axis direction of the base 1. The guide rail 32 is located at the edge position of the base 1, and a slide rail is provided on the upper part of the guide rail 32. The slide groove at the end of the movable beam 31 is slidably connected to the corresponding slide rail. The shearing head 34 can move in the Y-axis direction of the base 1, so that the shearing head 34 can adjust the position according to the clamping component 23 to accurately cut and process.

[0023] Furthermore, the shearing head 34 includes a damping assembly, a hydraulic cylinder 344, a shearing knife 345 and a guide rod 346. The damping assembly is fixed on one side of the movable beam 31, and the hydraulic cylinder 344 is fixed at the lower part of the damping assembly. The end of the hydraulic cylinder 344 away from the damping assembly is the output end, and the output end is connected to the shearing knife 345. A limiting plate 347 is also installed at the end of the hydraulic cylinder 344 away from the damping assembly. There are two guide rods 346 and they are vertically arranged. The guide rods 346 are located on both sides of the hydraulic cylinder 344. One end of the guide rod 346 passes through the limiting plate 347 and is fixed to the shearing knife 345.

[0024] According to a specific embodiment provided by the present invention, this embodiment provides a specific structure of a shearing head 34, and a shock-absorbing component is used to protect the shearing head 34 knife during shearing. The shock-absorbing component is located at the upper end of the shearing head 34, and a hydraulic cylinder 344 is installed at the lower part of the shock-absorbing component. The output end of the hydraulic cylinder 344 drives the shearing knife 345 to move up and down, and the guide rod 346 is vertically arranged on both sides of the hydraulic cylinder 344. The end of the guide rod 346 is fixed to the upper part of the shearing knife 345. The guide rod 346 is used to limit the up and down movement of the shearing knife 345 to avoid the shearing knife 345 from generating lateral jumping during shearing.

[0025] Furthermore, if Figure 4As shown, the shock absorption component includes a rotating member 35, a first spring 341, and a bottom mounting plate 342 and a push plate 343. The push plate 343 and the bottom mounting plate 342 are oppositely arranged and parallel to each other. The rotating member 35 is movably installed on the side of the bottom mounting plate 342 away from the driving member. A connecting rod 353 is connected to the rotating member 35 away from the bottom mounting plate 342. The connecting rod 353 is arranged parallel to the bottom mounting plate 342. Both ends of the connecting rod 353 are respectively connected to the side surface of a telescopic cylinder 351. One end of each telescopic cylinder 351 is fixed to the bottom mounting plate 342, and the other end is fixed to one side of the push plate 343. The connecting rod 353 passes through the first spring 341. The number of the first springs 341 is two and they are correspondingly arranged on both sides of the rotating member 35, so that when the push plate 343 is subjected to the force of the workpiece to be clamped, it can move towards the bottom mounting plate 342 against the resistance of the first spring 341.

[0026] According to a specific embodiment provided by the present invention, this embodiment provides a specific structure of the shock absorption component. The bottom mounting plate 342 is fixed on the connecting plate on one side of the moving beam 31. The bottom mounting plate 342 is in an "L" shape, which is convenient for installation. The number of the telescopic cylinders 351 is two and they are fixed on one side of the bottom mounting plate 342. The end of the telescopic cylinder 351 away from the bottom mounting plate 342 is connected to one side of the push plate 343. The push plate 343 and the upper part of the hydraulic cylinder 344 are fixedly installed by bolts. The rotating member 35 is used to transfer the movement of the hydraulic cylinder 344 to the first spring 341 to achieve compression. If the force borne by the shear blade 345 exceeds its limit, after the hydraulic cylinder 344 works, it will compress the first spring 341 and the second spring 357, thereby protecting the shear blade 345.

[0027] Further, the rotating member 35 includes a rotating cylinder 354, a hinged rod 355, and a moving ring 356. The rotating cylinder 354 is fixedly connected to the push plate 343. Two hinged rods 355 are hinged to one end of the rotating cylinder 354 away from the push plate 343. The other ends of the two hinged rods 355 are respectively hinged to a moving ring 356. The moving ring 356 is sleeved on the connecting rod 353 and can move along the axis direction of the connecting rod 353. The sides of the hinged rings respectively abut against a first spring 341, and the two hinged rods 355 are clamped with an acute angle to each other.

[0028] Further, a second spring 357 is sleeved on the telescopic cylinder 351. One end of the second spring 357 abuts against one side of the push plate 343. The second spring 357 applies a force to the telescopic cylinder 351 away from the push plate 343. Since the sheet metal parts have a relatively high hardness and the force borne by the shear blade 345 is also relatively large, the first spring 341 and the second spring 357 are used in cooperation to enhance the buffering ability of the shock absorption component.

[0029] Further, as Figure 5As shown, the clamping assembly 23 includes a processing table 231, a clamping motor 232 and a clamping plate 233. The processing table 231 is slidably connected to the moving axis X of the moving assembly through a connecting head. The processing table 231 has a processing plane 234 for placing sheet metal parts. The shearing knife 345 can be moved from the top to the processing plane 234. The processing plane 234 is provided with a shearing groove 235 for the shearing knife 345 to extend into. There are two clamping plates 233 and they are slidably mounted on the processing plane 234 of the processing table 231. The two clamping plates 233 are arranged opposite to each other and the two clamping plates 233 are used to fix the sheet metal parts. The clamping motor 232 is installed on one side of the processing table 231. The output end of the clamping motor 232 is connected to a transmission screw, and the transmission screw is threadedly connected to the two clamping plates 233.

[0030] There is a limit head 236 on the upper part of the processing table 231. The length of the limit head 236 of the processing table 231 is to match the structure of the limit plate 347. The middle part of the limit head 236 is a groove structure to facilitate the insertion of the shearing knife 345. The limit structures on both sides of the limit plate 347 are used to position the shearing knife 345. When the processing table 231 moves along the X-axis direction of the base 1, the limit structures on both sides of the limit plate 347 are located on both sides of the processing table 231, so that the processing table 231 can be located inside the limit plate 347, so that when the shearing knife 345 descends under the drive of the hydraulic cylinder 344, the shearing knife 345 can accurately extend into the shearing groove 235 opened on the processing plane 234.

[0031] The side of the processing table 231 facing away from the clamping motor 232 is slidably connected to the moving axis X of the moving component through the connecting column 24. A groove is provided in the middle of the processing table 231 to form a processing plane 234 for placing the sheet metal. The processing plane 234 is located below the limit head 236. The transmission screw (not visible in the figure) is threadedly connected to the two clamping plates 233. When installing the clamping plate 233, the position of the clamping plate 233 on the transmission screw can be selected to match sheet metal parts of different sizes. Under the action of the clamping motor 232, the two clamping plates 233 will move closer to or away from each other to clamp or release the sheet metal parts.

[0032] The automobile sheet metal gantry shearing device of the present invention has a high degree of automation and requires almost no manpower, which greatly improves the shearing efficiency and can prevent the shearing knife 345 from jumping and being damaged when encountering a sheet metal with greater hardness.

[0033] Furthermore, the first drive assembly 22 and the second drive assembly 33 can be servo motors or stepper motors. Servo motors have high movement accuracy and are suitable for precise processing.

[0034] In addition, the present invention also seeks to protect a gantry shearing method for automobile sheet metal parts, which uses any of the above-mentioned gantry shearing devices for automobile sheet metal parts, comprising the following steps: S1. Start the first driving component 22 to move the processing table 231 along the moving axis of the X moving component to the feeding side of the base 1. Place the sheet metal part on the processing table 231. After the clamping motor 232 is powered on, drive the clamping plate 233 to fix the sheet metal part. S2. The first driving component 22 drives the processing table 231 to move along the moving axis of the X moving component to the processing station of the base 1. Drive the hydraulic cylinder 344 to drive the shearing knife 345 to move towards the processing table 231 for shearing. After shearing is completed, drive the hydraulic cylinder 344 to retract the shearing knife 345. S3. Start the first driving component 22 again to move the processing table 231 along the moving axis of the X moving component to the discharging side of the base 1. The debris generated by shearing falls into the shearing groove 235. After shearing is completed, collect the sheet metal part and clean the debris in the shearing groove 235. S4. Start the first driving component 22 to move the processing table 231 along the moving axis of the X moving component to the processing station of the base 1 and wait for the next shearing.

[0035] Finally, it should be noted that in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0036] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A gantry shearing device for automotive sheet metal parts, characterized in that: It includes a base, a sheet metal moving component, and a shearing component located above the sheet metal moving component. The sheet metal moving component is installed on the base, and the shearing component is arranged corresponding to the sheet metal moving component. The shearing component is used to process the sheet metal on the sheet metal moving component; Among them, the sheet metal moving component includes a moving component X moving shaft installed on the base, a first driving component, and a clamping component slidably connected to the moving component X moving shaft. The clamping component is used to clamp the sheet metal, and the first driving component is used to drive the clamping component to move along the moving component X moving shaft.

2. The gantry shearing device for an automotive sheet metal part according to claim 1, characterized in that: The shearing component includes a moving beam, guide rails, a second driving component, and a shearing head fixedly installed on the moving beam. The number of the guide rails is two and they are arranged parallel to each other on the base. The guide rails are arranged along the Y-axis direction of the base. Both ends of the moving beam are slidably matched with the guide rails. The moving beam can slide under the limitation of the two guide rails through the second driving component. The shearing head is fixed on one side of the moving beam and is located above the base.

3. The gantry shearing device for automotive sheet metal parts according to claim 2, wherein: The shearing head includes a shock absorption component, a hydraulic cylinder, a shearing blade, and guide rods. The shock absorption component is fixed on one side of the moving beam, and the hydraulic cylinder is fixed to the lower part of the shock absorption component. The output end of the hydraulic cylinder away from the shock absorption component is connected to the shearing blade. A limiting plate is also installed at the end of the hydraulic cylinder away from the shock absorption component. The number of the guide rods is two and they are arranged vertically on both sides of the hydraulic cylinder. One end of the guide rod passes through the limiting plate and is fixed to the shearing blade.

4. A gantry shearing device for automotive sheet metal parts according to claim 3, characterized in that: Limiting structures extend away from the hydraulic cylinder on both sides of the limiting plate.

5. The gantry shearing device for an automotive sheet metal part according to claim 3 or 4, characterized in that: The shock absorption component includes a rotating component, a first spring, a bottom mounting plate, and a push plate. The push plate and the bottom mounting plate are arranged opposite to each other and are parallel to each other. The rotating component is movably installed on the side of the bottom mounting plate away from the driving component. A connecting rod is connected to the rotating component away from the bottom mounting plate. The connecting rod is arranged parallel to the bottom mounting plate. Both ends of the connecting rod are respectively connected to the side surfaces of a telescopic cylinder. One end of each telescopic cylinder is fixed to the bottom mounting plate, and the other end is fixed to one side of the push plate. The connecting rod passes through the first spring. The number of the first springs is two and they are correspondingly arranged on both sides of the rotating component, so that when the push plate is subjected to the acting force of the workpiece to be clamped, it can move towards the bottom mounting plate by overcoming the resistance of the first spring.

6. The gantry shearing device for automobile sheet metal parts according to claim 5, wherein: The rotating component includes a rotating cylinder, articulated rods, and moving rings. The rotating cylinder is fixedly connected to the push plate. Two articulated rods are hinged to one end of the rotating cylinder away from the push plate. The other ends of the two articulated rods are respectively hinged to a moving ring. The moving ring is sleeved on the connecting rod and can move along the axis direction of the connecting rod. The side surfaces of the articulated rings respectively abut against a first spring, and the two articulated rods are clamped with an acute angle between them.

7. The gantry shearing device for an automotive sheet metal part according to claim 6, characterized in that: A second spring is sleeved on the telescopic cylinder. One end of the second spring abuts against one side of the push plate, and the second spring applies a force to the telescopic cylinder to move away from the push plate.

8. A gantry shearing device for automotive sheet metal parts according to any one of claims 1-7, characterized in that, The clamping assembly includes a processing table, a clamping motor and a clamping plate. The processing table is slidably connected to the moving component X moving shaft through a connector. The processing table has a processing plane for placing sheet metal parts. The shearing knife can move from above to the processing plane. A shearing groove for the shearing knife to extend into is formed in the processing plane. There are two clamping plates which are slidably installed on the processing plane of the processing table. The two clamping plates are arranged oppositely and are used to fix the sheet metal parts between them. A clamping motor is installed on one side of the processing table. The output end of the clamping motor is drivingly connected with a transmission lead screw, and the transmission lead screw is threadedly connected with the two clamping plates.

9. The gantry shearing device for an automotive sheet metal part according to claim 8, wherein: The first driving component and the second driving component can be a servo motor or a stepping motor.

10. A shearing method, characterized in that: Adopt a gantry shearing device for automobile sheet metal parts according to any one of claims 1-9, including the following steps: S1. Start the first driving component to move the processing table along the moving component X moving shaft to the feeding side of the base, place the sheet metal part on the processing table, and after the clamping motor is powered on, drive the clamping plate to fix the sheet metal part; S2. The first driving component drives the processing table to move along the moving component X moving shaft to the processing station of the base, and drives the hydraulic cylinder to drive the shearing knife to move towards the processing table for shearing. After shearing is completed, drive the hydraulic cylinder to retract the shearing knife; S3. Start the first driving component again to move the processing table along the moving component X moving shaft to the discharging side of the base. The debris generated by shearing falls into the shearing groove. After shearing is completed, collect the sheet metal part and clean the debris in the shearing groove; S4. Start the first driving component to move the processing table along the moving component X moving shaft to the processing station of the base and wait for the next shearing.

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