A milling device for machining automobile parts

Abstract

This invention relates to the field of milling equipment technology, and discloses a milling device for processing automotive parts, including a processing table, and further including: a milling mechanism installed on the top of the processing table, the milling mechanism including a tool holder, the milling mechanism being used to install and fix milling cutters; and pre-pressing components installed on both sides of the milling mechanism, the pre-pressing components including guide plates; in this invention, when the lifting cylinder drives the tool holder to feed downwards, the tool holder drives the pre-pressing components on both sides to descend synchronously, and the pressure block will contact the peripheral top surface of the processing position of the automotive sheet metal part one step in advance. Under the elastic pre-tightening action of the compression spring, the pressure block tightly presses the periphery of the processing position against the top surface of the base, completing the top pre-pressing positioning before milling. In this way, when the milling cutter head feeds the workpiece, it can effectively avoid the slight vibration displacement of the milling position caused by the impact force of the tool feed, ensuring the processing accuracy of groove milling.

Description

Technical Field

[0001] This invention relates to the field of milling equipment technology, specifically a milling equipment for processing automotive parts. Background Technology

[0002] In the automotive parts manufacturing process, the machining of automotive sheet metal grooves is an important process. When milling automotive sheet metal grooves, it is generally necessary to position and fix the automotive sheet metal to prevent positional displacement during the machining process and to ensure the accuracy of milling.

[0003] In practical use, most existing milling equipment for automotive parts processing can only fix the edge position of the workpiece by pneumatic grippers. When the milling cutter descends to mill the automotive sheet metal parts, there is a certain distance between the cutter and the top milling position of the sheet metal part and the force-bearing point of the pneumatic grippers. When the cutter is milling the top groove of the automotive sheet metal part, the milling position is prone to slight vibration and displacement due to the feed impact force of the cutter, which affects the machining accuracy of the groove. At the same time, as the milling cutter enters the top milling groove of the automotive sheet metal part, the sheet metal part is relatively thin and will be squeezed and deformed outward during the cutter feed, further amplifying the deviation of the milling position and reducing the pass rate of groove processing. Summary of the Invention

[0004] The purpose of this invention is to provide a milling device for processing automotive parts, which realizes synchronous pre-clamping positioning of the top and sides of the workpiece at the milling position during the milling process, effectively reduces the vibration offset of the workpiece at the milling position during the milling feed, avoids deformation of the workpiece due to tool squeezing, ensures the milling accuracy of the groove, improves the processing qualification rate, and solves the problems mentioned in the background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a milling device for processing automotive parts, comprising the processing table, milling mechanism, pre-pressing component, chip adsorption plate, side mounting component, side clamping component, and pneumatic output component as described in the preceding claims. When the tool holder drives the milling cutter head to descend and perform milling processing on the automotive sheet metal parts, the pressure block at the pre-pressing component will contact the top surface of the workpiece in advance.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a milling apparatus for processing automotive parts, comprising a processing table, and further comprising: A milling mechanism is mounted on top of the machining table. The milling mechanism includes a tool holder and is used to mount and fix milling tools. A pre-pressing component is installed on both sides of the milling mechanism. The pre-pressing component includes a guide plate. The pre-pressing component is used to pre-press and position the top of the workpiece during the milling of grooves in automotive sheet metal parts. A debris adsorption plate is installed on the milling mechanism. The debris adsorption plate is used to adsorb and collect debris generated during the milling of automotive sheet metal parts. A side mounting component is installed on the middle part of the pre-compression component on the side away from the milling mechanism. The side mounting component is used to install the side pre-compression component of the workpiece for milling groove machining. A side abutment is installed on the bottom end of the side mounting piece near the milling mechanism. The side abutment includes a telescopic airbag. The side abutment is used to synchronously abut and position the side of the workpiece during the milling of grooves in automotive sheet metal parts. A pneumatic output component is installed on the side of the side mounting component near the milling mechanism and close to the bottom. The pneumatic output component includes an air storage cylinder and is used to supply and store air pressure inside the telescopic airbag.

[0007] Preferably, a gantry frame is fixedly installed on the top of the processing table, a base is adjustablely installed on the top of the processing table, and pneumatic grippers are adjustablely installed around the top of the base.

[0008] Preferably, a lifting cylinder is fixedly installed on the top of the gantry frame, the tool holder is fixedly installed on the telescopic end of the lifting cylinder on the top of the gantry frame, a milling cutter head is assembled at the bottom of the tool holder, the debris adsorption plate is fixedly sleeved on the outer side of the bottom of the tool holder, and a ring is detachably installed at the bottom of the tool holder by bolts.

[0009] Preferably, the guide plate is detachably installed on both sides of the tool holder by bolts. Guide blocks are integrally formed at both ends of the guide plate. A guide hole is opened through the top of the guide block. A fixing rod is movably inserted into the guide hole. An adjusting bolt is threaded on the outside of the guide block. The adjusting bolt is used to lock the fixing rod into the guide hole.

[0010] Preferably, a movable rod is movably inserted into the bottom of the inner wall of the fixed rod, a protrusion is fixedly provided at the top of the movable rod, the protrusion is slidably assembled on the inner wall of the fixed rod, a compression spring is fixedly installed between the protrusion and the inner wall of the fixed rod, and a pressure block is fixedly installed at the bottom of the movable rod.

[0011] Preferably, the side mounting component includes a side plate, the side plate having an opening slot on the side near the milling mechanism, a folding plate fixedly mounted on the top of the side plate, a positioning spring fixedly mounted in the corrugated groove on the inner wall of the folding plate, and a first fixing plate fixedly mounted on the top of the folding plate, the first fixing plate being fixedly mounted to the middle of the outer side of the guide plate by bolts.

[0012] Preferably, the bottom of the telescopic airbag is fixedly connected to the bottom end of the side plate near the milling mechanism, the side of the telescopic airbag near the automotive sheet metal part is integrally formed with a rubber bladder, and the top of the telescopic airbag is integrally formed with a second fixing plate, the top of the second fixing plate being adjustablely fixed to the side of the side plate by bolts.

[0013] Preferably, the air storage cylinder is fixedly installed on the side of the side plate near the milling mechanism, a piston plate is slidably assembled inside the air storage cylinder, a piston rod is fixedly installed at the top of the piston plate, and a return spring is fixedly installed between the piston plate and the bottom of the inner wall of the air storage cylinder.

[0014] Preferably, an extension rod is fixedly installed on the top of the piston rod, the extension rod is slidably disposed on the inner wall of the opening groove, the end of the extension rod away from the side plate is fixedly connected to the ring sleeve, and the top and bottom of the outer side of the air storage cylinder are respectively fixedly connected to pipe connectors, the outer end of the top pipe connector is equipped with an air nozzle, and the outer end of the bottom pipe connector is fixedly connected to the interior of the corresponding telescopic airbag by a connecting air pipe.

[0015] Preferably, the pressure block abuts against the top surface of the automotive sheet metal part placed on the top of the base, and the bottom end of the side plate abuts against and limits the side of the automotive sheet metal part placed on the top of the base.

[0016] Compared with the prior art, the beneficial effects of the present invention are: In this invention, when the lifting cylinder drives the tool holder to feed downwards, the tool holder drives the pre-pressing parts on both sides to descend synchronously. The pressure block will contact the peripheral top surface of the processing position of the automotive sheet metal part one step in advance. Under the elastic pre-tightening action of the compression spring, the pressure block tightly presses the periphery of the processing position onto the top surface of the base, completing the top pre-pressing and positioning before milling. In this way, when the milling cutter head feeds the workpiece, it can effectively avoid the slight vibration and displacement of the milling position caused by the impact force of the tool feed, and ensure the processing accuracy of the groove milling.

[0017] In this invention, as the cutter head continues to descend, the extension rod pushes the piston rod and piston plate downward along the air reservoir. The piston plate forces the air inside the air reservoir into the telescopic airbag through the bottom pipe connector and connecting air pipe. After the telescopic airbag is inflated, it expands, causing the rubber bladder to extend towards the side of the automotive sheet metal part, thus pressing and positioning the side of the milling location. This achieves top pre-pressing while simultaneously pressing the side. When the milling cutter head descends and contacts the automotive sheet metal part for groove milling, the area around the processing location is simultaneously pressed and positioned by the top surface and the side, effectively offsetting the impact force generated by the milling cutter head feed, preventing vibration and displacement of the processing location, and also preventing the sheet metal part from deforming outward due to the pressure of the cutter. This effectively ensures the processing accuracy of groove milling and improves the processing qualification rate.

[0018] In this invention, the pre-compression component and the side mounting component can be adapted to deform using internal compression springs and positioning springs. The telescopic airbag in the side clamping component can be installed on the inner side of the side plate with adjustable height via the second fixing plate. This allows the rubber bladder to be adjusted to match the height of the milled groove on the top of the automotive sheet metal part for side clamping. This enables the clamping of automotive sheet metal parts of different thicknesses. At the same time, the user can adjust the extension length of the fixing rod in the guide hole and the installation height of the second fixing plate on the side plate according to the size and specifications of the sheet metal part to be processed, so as to meet the pre-compression positioning requirements under different working conditions and make it more versatile.

[0019] In this invention, a one-way valve is fixedly connected to the top of the air reservoir on the side away from the pipe connector. When the pressure inside the air reservoir decreases, external gas enters the air reservoir through the one-way valve. When the milling cutter head is reset upward through the tool holder, the piston plate is reset under the elastic force of the reset spring. The gas inside the telescopic airbag flows back into the air reservoir through the connecting air pipe. After the telescopic airbag contracts, it releases the pressure on the side of the workpiece. At the same time, the gas enters the air nozzle through the top pipe connector, blowing away the metal chips in the milling groove of the automotive sheet metal part. With the synchronous cooperation of the chip adsorption plate set on the outer side of the bottom of the tool holder, the metal chips scattered during the milling process can be magnetically absorbed and collected, avoiding the chips from flying everywhere and being inconvenient to clean. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the guide component and pre-compression component in this invention; Figure 3 This is a schematic diagram of the milling mechanism in this invention; Figure 4 This is a partial structural diagram of the milling mechanism in this invention; Figure 5 This is a schematic diagram of the automotive sheet metal part structure in this invention; Figure 6 This is a schematic diagram of the side abutment structure in the present invention; Figure 7 for Figure 4 A magnified view of the structure at point A in the middle; Figure 8 for Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0021] In the diagram: 100, machining table; 200, milling mechanism; 300, preload; 400, chip suction plate; 500, side mounting component; 600, side clamping component; 700, pneumatic output component; 11, gantry frame; 12, base; 13, pneumatic gripper; 21, tool holder; 22, milling cutter head; 23, ring sleeve; 31, guide plate; 32, fixed rod; 33, movable rod; 321, guide block; 322, guide hole; 323, adjustment. Bolt; 331, protrusion; 332, compression spring; 333, pressure block; 51, side plate; 52, folding plate; 53, positioning spring; 511, opening groove; 521, first fixing plate; 61, telescopic airbag; 62, rubber bladder; 63, second fixing plate; 71, air reservoir; 72, piston rod; 73, piston plate; 74, return spring; 75, connecting air pipe; 711, pipe connector; 721, extension rod; 722, air nozzle. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments. Example

[0023] This embodiment provides a milling device for processing automotive parts, such as... Figures 1-8 As shown, it includes a processing table 100, and also includes: A milling mechanism 200 is mounted on top of a machining table 100. The milling mechanism 200 includes a tool holder 21 and is used to mount and fix milling tools. The pre-pressing component 300 is installed on both sides of the milling mechanism 200. The pre-pressing component 300 includes a guide plate 31. The pre-pressing component 300 is used to pre-press and position the top of the workpiece during the milling of grooves in automotive sheet metal parts. The debris adsorption plate 400 is installed on the milling mechanism 200 and is used to adsorb and collect debris generated during the milling of automotive sheet metal parts. The side mounting part 500 is installed on the middle part of the pre-compression part 300 on the side away from the milling mechanism 200. The side mounting part 500 is used to install the side pre-compression part of the workpiece for milling groove machining.

[0024] The machining table 100 is fixedly mounted with a gantry frame 11, and an adjustable base 12 is mounted on the top of the machining table 100. Pneumatic grippers 13 are adjustablely mounted on the four sides of the top of the base 12. When the top of the automotive sheet metal part passes through the milling slot, the automotive sheet metal part is placed on the top of the base 12, and the pneumatic grippers 13 on the four sides of the top can clamp and fix the automotive sheet metal part on the base 12. The base 12 can be longitudinally adjusted to milling position through the bottom lead screw drive component. In addition, the lead screw drive component on the gantry frame 11 can also laterally adjust the milling position of the milling mechanism 200.

[0025] The gantry 11 is fixedly equipped with a lifting cylinder at the top, and the tool holder 21 is fixedly installed at the telescopic end of the lifting cylinder at the top of the gantry 11. The bottom of the tool holder 21 is equipped with a milling cutter head 22. The debris adsorption plate 400 is fixedly sleeved on the outer side of the bottom of the tool holder 21. The bottom of the tool holder 21 is detachably installed with a ring sleeve 23 by bolts. When the lifting cylinder drives the tool holder 21 to feed downward, the milling cutter head 22 can be driven by the motor to mill the top of the automotive sheet metal part. As the tool holder 21 continues to drive the milling cutter head 22 to descend, the extension rod 721 will push the piston rod 72 and the piston plate 73 to move downward along the air reservoir 71. The piston plate 73 will press the air inside the air reservoir 71 into the telescopic airbag 61 through the bottom pipe connector 711 and the connecting air pipe 75. After the telescopic airbag 61 is inflated, it expands and drives the rubber bladder ball 62 to extend to the side of the automotive sheet metal part, pressing and positioning the side of the milling position.

[0026] The guide plate 31 is detachably installed on both sides of the tool holder 21 by bolts. Guide blocks 321 are integrally formed at both ends of the guide plate 31. A guide hole 322 is opened through the top of the guide block 321. A fixing rod 32 is movably inserted into the guide hole 322. An adjusting bolt 323 is threaded on the outside of the guide block 321. The adjusting bolt 323 is used to lock the fixing rod 32 into the guide hole 322. When the lifting cylinder drives the tool holder 21 to feed downward, the tool holder 21 drives the pre-pressing parts 300 on both sides to descend synchronously. The pressure block 333 will contact the peripheral top surface of the automotive sheet metal processing position one step ahead.

[0027] Among them, a movable rod 33 is movably inserted into the bottom of the inner wall of the fixed rod 32, and a protrusion 331 is fixedly provided at the top of the movable rod 33. The protrusion 331 is slidably assembled on the inner wall of the fixed rod 32, and a compression spring 332 is fixedly installed between the protrusion 331 and the inner wall of the fixed rod 32. A pressure block 333 is fixedly installed at the bottom of the movable rod 33. Under the elastic pre-tightening action of the compression spring 332, the pressure block 333 tightly presses the periphery of the processing position against the top surface of the base 12, completing the top pre-pressing and positioning before milling. In this way, when the milling cutter head 22 feeds the workpiece, it can effectively avoid the slight vibration and displacement of the milling position caused by the impact force of the tool feed, and ensure the processing accuracy of the groove milling.

[0028] The side mounting component 500 includes a side plate 51. The side plate 51 has an opening slot 511 on the side near the milling mechanism 200. A folding plate 52 is fixedly installed on the top of the side plate 51. A positioning spring 53 is fixedly installed in the corrugated groove on the inner wall of the folding plate 52. A first fixing plate 521 is fixedly installed on the top of the folding plate 52. The first fixing plate 521 is fixedly installed on the middle of the outer side of the guide plate 31 by bolts. Example

[0029] Based on Example 1, this embodiment provides a milling apparatus for machining automotive parts, such as... Figures 3-8 As shown, it includes: A side abutment 600 is installed on the bottom end of the side mounting part 500 near the milling mechanism 200. The side abutment 600 includes a telescopic airbag 61. The side abutment 600 is used to synchronously abut and position the side of the workpiece during the milling of grooves in automotive sheet metal parts. The pneumatic output component 700 is installed on the side of the side mounting component 500 near the bottom of the milling mechanism 200. The pneumatic output component 700 includes an air reservoir 71 and is used to supply air and store pressure inside the telescopic airbag 61.

[0030] The bottom of the telescopic airbag 61 is fixedly connected to the bottom end of the side plate 51 near the milling mechanism 200. A rubber bulb 62 is integrally formed on the side of the telescopic airbag 61 near the automotive sheet metal part. A second fixing plate 63 is integrally formed on the top of the telescopic airbag 61. The top of the second fixing plate 63 is adjustablely fixed to the side of the side plate 51 by bolts. The pre-compression component 300 and the side mounting component 500 can be adaptively deformed by the internal compression spring 332 and positioning spring 53. The telescopic airbag in the side abutment component 600... The bladder 61 can be installed at an adjustable height on the inner side of the side plate 51 via the second fixing plate 63, so that the height of the rubber bladder ball 62 and the top milled groove of the automotive sheet metal part can be matched and adjusted to perform side pressure. This can adapt and press automotive sheet metal parts of different thicknesses. At the same time, the user can adjust the extension length of the fixing rod 32 in the guide hole 322 and the installation height of the second fixing plate 63 on the side plate 51 according to the size and specifications of the sheet metal part to be processed, so as to meet the pre-pressure positioning requirements under different working conditions and make it more versatile.

[0031] The air reservoir 71 is fixedly installed on the side plate 51 near the milling mechanism 200. A piston plate 73 is slidably mounted inside the air reservoir 71. A piston rod 72 is fixedly mounted on the top of the piston plate 73. A return spring 74 is fixedly installed between the piston plate 73 and the bottom of the inner wall of the air reservoir 71. An extension rod 721 is fixedly mounted on the top of the piston rod 72 and slidably disposed on the inner wall of the opening groove 511. The end of the extension rod 721 away from the side plate 51 is fixedly connected to the ring 23. Pipe connectors 711 are fixedly connected to the top and bottom of one side of the air reservoir 71. An air nozzle 722 is mounted on the outer end of the top pipe connector 711. A connecting air pipe 75 is fixedly connected between the outer end of the bottom pipe connector 711 and the interior of the corresponding telescopic airbag 61. A one-way valve is fixedly connected to the top of the air reservoir 71 away from the pipe connector 711. When the internal pressure of the air reservoir 71 decreases... External gas enters the air reservoir 71 through a one-way valve. When the milling cutter head 22 returns to its original position via the tool holder 21, the piston plate 73 returns to its original position under the elastic force of the return spring 74. The gas inside the telescopic airbag 61 flows back into the air reservoir 71 through the connecting air pipe 75. (It should be noted that the piston plate 73 slides up and down inside the air reservoir 71, and the two sets of pipe connectors 711 and the one-way valve can change the gas pressure inside the air reservoir 71 to the existing mature technology, which will not be elaborated here.) After the telescopic airbag 61 contracts, it releases the pressure on the side of the workpiece. At the same time, the gas enters the air nozzle 722 through the top pipe connector 711, blowing away the metal chips in the milling groove of the automotive sheet metal part. With the synchronous cooperation of the chip adsorption plate 400 set on the outer side of the bottom of the tool holder 21, the metal chips scattered during the milling process can be magnetically absorbed and collected, avoiding the chips from flying everywhere and being inconvenient to clean.

[0032] The pressure block 333 abuts against the top surface of the automotive sheet metal part placed on top of the base 12, and the bottom end of the side plate 51 abuts against the side of the automotive sheet metal part placed on top of the base 12 for limitation. As the tool holder 21 continues to drive the milling cutter head 22 to descend, the extension rod 721 pushes the piston rod 72 and piston plate 73 to move downward along the air reservoir 71. The piston plate 73 forces the air inside the air reservoir 71 into the telescopic airbag 61 through the bottom pipe connector 711 and connecting air pipe 75. After the telescopic airbag 61 is inflated, it expands, driving the rubber... The ball 62 extends to the side of the automotive sheet metal part, pressing and positioning the side of the milling position. While pre-pressing the top, the side is pressed simultaneously. When the milling cutter head 22 descends to contact the automotive sheet metal part for groove milling, the periphery of the processing position has been pressed and positioned by the top surface and the side, which can effectively counteract the impact force generated by the feed of the milling cutter head 22, avoid vibration and displacement of the processing position, and prevent the sheet metal part from deforming outward due to the pressure of the tool. This effectively ensures the processing accuracy of groove milling and improves the processing qualification rate.

[0033] Working principle: When using this type of milling device for processing automotive parts, the automotive sheet metal parts are placed on the top of the base 12. The pneumatic grippers 13 around the top can clamp and fix the automotive sheet metal parts on the base 12. The base 12 can be adjusted longitudinally to adjust the milling position through the bottom lead screw drive. The lead screw drive on the gantry 11 can also drive the milling mechanism 200 to adjust the milling position laterally. After adjusting the processing position, processing can begin.

[0034] During the processing, the lifting cylinder drives the tool holder 21 to feed downwards, and the tool holder 21 drives the pre-pressing parts 300 on both sides to descend synchronously. The pressure block 333 will contact the peripheral top surface of the processing position of the automotive sheet metal part in advance. Under the elastic pre-tightening action of the compression spring 332, the pressure block 333 tightly presses the periphery of the processing position onto the top surface of the base 12, completing the top pre-pressing and positioning before milling, avoiding slight vibration and displacement of the milling position due to the impact force of the tool feed, and ensuring the milling accuracy of the groove.

[0035] As the tool holder 21 continues to drive the milling cutter head 22 downward, the extension rod 721, which is fixedly connected to the ring sleeve 23, will push the piston rod 72 and the piston plate 73 to move downward along the air reservoir 71. The piston plate 73 will press the air inside the air reservoir 71 into the telescopic airbag 61 through the bottom pipe connector 711 and the connecting air pipe 75. After the telescopic airbag 61 is inflated, it will drive the rubber bladder ball 62 to extend to the side of the automotive sheet metal part, and press and position the side of the milling position. The side pressing is completed simultaneously with the top pre-pressing, which effectively counteracts the impact force generated by the feed of the milling cutter head 22, avoids vibration and displacement of the processing position, and prevents the deep groove of the sheet metal part from being deformed outward by the tool pressure, further ensuring the milling accuracy of the groove and improving the processing qualification rate.

[0036] After processing, the lifting cylinder drives the tool holder 21 and milling cutter head 22 to return to their original positions. The piston plate 73 returns to its original position under the elastic force of the return spring 74. The gas inside the telescopic airbag 61 flows back to the air storage cylinder 71 through the connecting air pipe 75. After the telescopic airbag 61 contracts, it releases the pressure on the side of the workpiece. At the same time, the gas inside the air storage cylinder 71 enters the air nozzle 722 through the top pipe connector 711. The ejected airflow blows away the metal chips in the milling groove of the automotive sheet metal part. With the help of the chip adsorption plate 400 on the outer side of the bottom of the tool holder 21, the scattered metal chips are magnetically absorbed and collected, preventing the chips from flying everywhere and making them inconvenient to clean.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A milling apparatus for machining automotive parts, comprising a machining table, characterized in that, Also includes: A milling mechanism is mounted on top of the machining table. The milling mechanism includes a tool holder and is used to mount and fix milling tools. A pre-pressing component is installed on both sides of the milling mechanism. The pre-pressing component includes a guide plate. The pre-pressing component is used to pre-press and position the top of the workpiece during the milling of grooves in automotive sheet metal parts. A debris adsorption plate is installed on the milling mechanism. The debris adsorption plate is used to adsorb and collect debris generated during the milling of automotive sheet metal parts. A side mounting component is installed on the middle part of the pre-compression component on the side away from the milling mechanism. The side mounting component is used to install the side pre-compression component of the workpiece for milling groove machining. A side abutment is installed on the bottom end of the side mounting piece near the milling mechanism. The side abutment includes a telescopic airbag. The side abutment is used to synchronously abut and position the side of the workpiece during the milling of grooves in automotive sheet metal parts. A pneumatic output component is installed on the side of the side mounting component near the milling mechanism and close to the bottom. The pneumatic output component includes an air storage cylinder and is used to supply and store air pressure inside the telescopic airbag.

2. The milling device for processing automotive parts according to claim 1, characterized in that: A gantry frame is fixedly installed on the top of the processing table, and a base is adjustablely installed on the top of the processing table. Pneumatic grippers are adjustablely installed around the top of the base.

3. The milling device for processing automotive parts according to claim 2, characterized in that: A lifting cylinder is fixedly installed on the top of the gantry frame, and the tool holder is fixedly installed on the telescopic end of the lifting cylinder on the top of the gantry frame. A milling cutter head is assembled at the bottom of the tool holder, and the debris adsorption plate is fixedly sleeved on the outer side of the bottom of the tool holder. A ring is detachably installed at the bottom of the tool holder by bolts.

4. The milling device for processing automotive parts according to claim 3, characterized in that: The guide plate is detachably installed on both sides of the tool holder by bolts. Guide blocks are integrally formed at both ends of the guide plate. A guide hole is opened through the top of the guide block. A fixing rod is movably inserted into the guide hole. An adjusting bolt is threaded on the outside of the guide block. The adjusting bolt is used to lock the fixing rod into the guide hole.

5. A milling device for processing automotive parts according to claim 4, characterized in that: A movable rod is movably inserted into the bottom of the inner wall of the fixed rod. A protrusion is fixedly provided at the top of the movable rod. The protrusion is slidably assembled into the inner wall of the fixed rod. A compression spring is fixedly installed between the protrusion and the inner wall of the fixed rod. A pressure block is fixedly installed at the bottom of the movable rod.

6. A milling device for processing automotive parts according to claim 5, characterized in that: The side mounting component includes a side plate with an opening slot on the side of the side plate near the milling mechanism. A folding plate is fixedly installed on the top of the side plate, and a positioning spring is fixedly installed in the corrugated groove on the inner wall of the folding plate. A first fixing plate is fixedly installed on the top of the folding plate and is fixedly installed on the middle of the outer side of the guide plate by bolts.

7. A milling device for processing automotive parts according to claim 6, characterized in that: The bottom of the telescopic airbag is fixedly connected to the bottom end of the side plate near the milling mechanism. A rubber bladder is integrally formed on the side of the telescopic airbag near the automotive sheet metal part. A second fixing plate is integrally formed on the top of the telescopic airbag. The top of the second fixing plate is adjustablely fixed to the side of the side plate by bolts.

8. A milling device for processing automotive parts according to claim 7, characterized in that: The air storage cylinder is fixedly installed on the side plate near the milling mechanism. A piston plate is slidably assembled inside the air storage cylinder. A piston rod is fixedly installed on the top of the piston plate. A return spring is fixedly installed between the piston plate and the bottom of the inner wall of the air storage cylinder.

9. A milling device for processing automotive parts according to claim 8, characterized in that: An extension rod is fixedly installed on the top of the piston rod. The extension rod is slidably disposed on the inner wall of the opening groove. The end of the extension rod away from the side plate is fixedly connected to the ring sleeve. The top and bottom of the outer side of the air storage cylinder are respectively fixedly connected to pipe connectors. An air nozzle is fitted on the outer end of the top pipe connector. A connecting air pipe is fixedly connected between the outer end of the bottom pipe connector and the interior of the corresponding telescopic airbag.

10. A milling device for processing automotive parts according to claim 9, characterized in that: The pressure block abuts against the top surface of the automotive sheet metal part placed on the top of the base, and the bottom end of the side plate abuts against and limits the side of the automotive sheet metal part placed on the top of the base.

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