A drilling device for manufacturing metal agricultural machinery

Abstract

This invention relates to the field of drilling technology, and specifically discloses a drilling device for manufacturing metal agricultural machinery, comprising: a processing table having a table surface and support legs disposed at the bottom of the table surface; a first electric slide rail symmetrically mounted on the outer side of the processing table, the interior of which is slidably connected to a moving plate via an electric slider; two sets of limiting frames, each set having a lifting assembly fixedly connected to its bottom; a chip removal device fixedly connected to the outer side of the limiting frame via a bracket; and a reinforcing bracket fixedly connected to the bottom of the processing table, the outer side of which is fixedly connected to a second electric slide rail, the interior of which is slidably connected to a sliding plate via an electric slider. This drilling device for manufacturing metal agricultural machinery eliminates the need for direct contact with the inner wall of the hole when cleaning debris, thus avoiding scratches and abrasions.

Description

Technical Field

[0001] This invention relates to the field of drilling technology, and in particular to a drilling device for manufacturing metal agricultural machinery. Background Technology

[0002] Machinery manufacturing refers to the industrial sector engaged in the production of various power machinery, lifting and transportation machinery, chemical machinery, textile machinery, machine tools, tools, instruments, meters, and other mechanical equipment. The machinery manufacturing industry provides technical equipment for the entire national economy. Agricultural machinery manufacturing, as the name suggests, involves manufacturing machinery for agricultural use. This process requires drilling devices to create holes in the materials used to assemble various parts. With the advancement of agricultural modernization, agricultural machinery is developing towards larger sizes, higher strengths, and greater precision. Key components (frames, drive shafts, hydraulic valve bodies, connecting brackets, etc.) often use metal materials such as carbon steel, alloy steel, and cast iron, requiring extensive high-precision drilling (including through holes, blind holes, and deep holes). The accuracy of hole positions, the consistency of hole diameters, and the surface quality directly affect the assembly precision and service life of agricultural machinery.

[0003] Chinese Patent CN117943586B discloses a drilling device for cylindrical workpieces, relating to the field of workpiece processing. The device includes a machine body with a support plate on it. A tooling assembly for clamping and fixing the cylindrical workpiece is mounted on the support plate. The tooling assembly clamps the cylindrical workpiece horizontally, with the processing section of the workpiece located on the upper side. The cylindrical workpiece is mounted on the support plate in a supported position. A first drill rod is mounted above the tooling assembly on the machine body, and a second drill rod is mounted on the side of the tooling assembly on the side of the machine body. A rotating assembly for driving the cylindrical workpiece to rotate 180 degrees is mounted on the machine body. A chip removal cylinder is vertically mounted below the cylindrical workpiece on the support plate. The number of chip removal cylinders is the same as the number of first drill holes and corresponds one-to-one. The chip removal cylinders and the first drill holes are inserted and slidably fitted together. Each chip removal cylinder is equipped with several chip removal hooks. This application achieves the cleaning of waste chips inside the first drill hole. This device uses a chip removal hook and "hooking protrusions" on its surface to directly contact the inner wall of the drilled hole and generate relative movement. For the already machined inner wall of the drilled hole, it is very easy to cause scratches, abrasions or dimensional errors, resulting in scrapping of the workpiece. Furthermore, the chip removal principle is to "hook" the waste chips, but the waste chips generated by drilling are mostly spiral or fine fragments, some of which will stick tightly to the bottom or wall of the hole. It is difficult to remove the firmly adhered waste chips or those located in the corners of the bottom of the hole by simply rotating and hooking them. The air blowing direction is set "towards the end of the chip removal hook", that is, the main airflow is used to peel off the waste chips on the chip removal hook, rather than directly blowing away the residue in the hole, resulting in a weak direct cleaning effect on the hole wall and bottom. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides: a drilling device for manufacturing metal agricultural machinery, comprising: A processing table has a tabletop and support legs disposed at the bottom of the tabletop. A first electric slide rail is symmetrically mounted on the outer side of the processing table, and a movable plate is slidably connected inside the first electric slide rail via an electric slider. The limiting frame is provided in two sets. The bottom of each set of the limiting frame is fixedly connected to a lifting component, and the outer side of the limiting frame is fixedly connected to a chip removal device via a bracket. A reinforcing bracket is fixedly connected to the bottom of the processing table. A second electric slide rail is fixedly connected to the outside of the reinforcing bracket. A sliding plate is slidably connected inside the second electric slide rail via an electric slider. A first electric telescopic rod is fixedly connected to the bottom of the sliding plate. A drilling assembly is fixedly connected to the movable end of the first electric telescopic rod via a bracket. The chip removal device includes: An annular plate has an annular plate structure and a sealing cover disposed at the bottom of the annular plate. The top of the sealing cover is fixedly connected to the bottom of the annular plate by a bracket. A limit port is opened at the bottom of the sealing cover. A switching device is installed at the bottom of the annular plate. An air jet device is installed on the inner wall of the sealing cover. The suction pipe passes through the sealing cap and is fixedly connected to the top of the sealing cap. The top of the suction pipe is connected to a filter cylinder, and the top of the filter cylinder is connected to a negative pressure suction pump. After the sealing cap is tightly attached to the surface of the workpiece, the negative pressure suction pump is turned on. The loose debris inside the drilled hole of the workpiece is sucked away from the suction pipe by using negative pressure. The debris enters the filter cylinder and is filtered. When cleaning the debris, there is no need to directly contact the inner wall of the hole, so as to avoid scratches and abrasions.

[0005] Preferably, the switching device includes: The first sealing plate has an annular plate structure and a first retaining plate disposed on the outside of the first sealing plate. A second electric telescopic rod is fixedly connected to the top of the first retaining plate. The second sealing plate has an annular plate structure and a second clamping plate disposed on the outside of the second sealing plate. A third electric telescopic rod is fixedly connected to the top of the second clamping plate. When the end face of the workpiece is narrow or when drilling a hole in a narrow workpiece, the diameter of the sealing cover is too large, which would cause it to be suspended and unable to be pressed tightly for sealing. The diameter of the sealing cover is adjusted by using the first sealing plate and the second sealing plate to adapt to workpieces of different widths or holes of different diameters, thereby improving the adaptability of the device.

[0006] Preferably, the fixed end of the lifting assembly is fixedly connected to the top of the moving plate, the bottom of the suction pipe is connected to the inside of the sealing cover, a filter assembly is installed inside the filter cylinder, a material inlet is opened on the outside of the filter cylinder, and the bottom of the filter cylinder is fixedly connected to the top of the sealing cover.

[0007] Preferably, one side of the first card plate is fixedly connected to the outer wall of the first sealing plate, and two sets of the first card plates are provided, with the two sets of the first card plates symmetrically distributed on both sides of the first sealing plate, and the top of the second electric telescopic rod is fixedly connected to the bottom of the annular plate.

[0008] Preferably, one side of the second card plate is fixedly connected to the outer wall of the second sealing plate, and two sets of the second card plates are provided, with the two sets of the second card plates symmetrically distributed on both sides of the second sealing plate. The top of the third electric telescopic rod is fixedly connected to the bottom of the annular plate. The outer wall of the first sealing plate is slidably connected to the inner wall of the sealing cover, and the outer wall of the second sealing plate is slidably connected to the inner wall of the first sealing plate. The first card plate and the second card plate are staggered.

[0009] Preferably, the jet device includes an annular air pipe, a fourth electrically operated telescopic rod fixedly connected to the outer side of the annular air pipe via a bracket, a first corrugated pipe connected to the top of the annular air pipe via a connecting pipe, a support pipe connected to the end of the first corrugated pipe away from the annular air pipe, a suction pump connected to the top of the support pipe, an air outlet pipe connected to the inner side of the annular air pipe, a second corrugated pipe connected to the end of the air outlet pipe away from the annular air pipe, an exhaust pipe connected to the end of the second corrugated pipe away from the air outlet pipe via a connecting pipe, and a fifth electrically operated telescopic rod fixedly connected to the outer side of the connecting pipe via a bracket. The exhaust pipe has an adjustment device installed on its outer side, and exhaust holes are evenly distributed on its outer side. When the exhaust pipe is inserted into the drilled hole of the workpiece, the distance between multiple sets of exhaust pipes is adjusted to accommodate drill holes of different diameters. The air pump is turned on to finally discharge external gas from the exhaust holes into the drilled hole of the workpiece. The airflow is used to remove the debris attached to the inner wall of the hole. Negative pressure and air jet are turned on at the same time to perform combined chip removal. Stubborn waste chips are loosened and detached, and then immediately carried away by the continuous negative pressure airflow, realizing "peeling and removal", eliminating secondary deposition and fundamentally ensuring the thoroughness of chip removal.

[0010] Preferably, the top of the fourth electric telescopic rod is fixedly connected to the inner wall of the sealing cover, the air outlet of the air pump is connected to the support pipe, the outer side of the air pump is fixedly connected to the top of the sealing cover through a bracket, and the support pipe passes through the sealing cover and is fixedly connected to the top of the sealing cover.

[0011] Preferably, multiple sets of air outlet pipes are provided, and the multiple sets of air outlet pipes are evenly distributed on the inner side of the annular air pipe. The fixed end of the fifth electric telescopic rod is fixedly connected to the outer wall of the annular air pipe through a bracket.

[0012] Preferably, the adjusting device includes a third electric slide rail, and a connecting frame is slidably connected inside the third electric slide rail via an electric slider. An arc-shaped baffle is fixedly connected to the outer wall of the connecting frame. An arc-shaped air outlet is provided on the arc-shaped baffle. When the arc-shaped baffle moves, it causes the arc-shaped air outlet to coincide with the exhaust hole. Since there are multiple sets of exhaust holes, the arc-shaped air outlet can be adjusted to coincide with the exhaust hole at different positions, thereby enabling "targeted removal" of stubborn waste in specific locations and improving cleaning efficiency.

[0013] Preferably, the outer side of the third electric slide rail is fixedly connected to the outer wall of the exhaust pipe via a bracket, and one side of the arc-shaped baffle is slidably connected to the outer wall of the exhaust pipe.

[0014] This invention provides a drilling device for manufacturing metal agricultural machinery. It has the following advantages: 1. This drilling device for manufacturing metal agricultural machinery, after the chip removal device is installed and the sealing cover is tightly attached to the surface of the workpiece, the negative pressure suction pump is turned on. The loose waste chips inside the workpiece hole are sucked away from the suction pipe by the negative pressure suction. The waste chips enter the filter cylinder and are filtered. When cleaning the chips, there is no need to directly contact the inner wall of the hole, so as to avoid scratches and abrasions.

[0015] 2. The drilling device for manufacturing metal agricultural machinery, through the installation of the switching device, avoids the sealing cover diameter being too large when drilling narrow workpieces or narrow workpieces, which would cause it to be suspended and unable to be pressed tightly for sealing. The diameter of the sealing cover is adjusted by the first sealing plate and the second sealing plate to adapt to workpieces of different widths or holes of different diameters, thereby improving the adaptability of the device.

[0016] 3. This drilling device for manufacturing metal agricultural machinery, through the installation of an air jet device, allows the exhaust pipe to be inserted into the workpiece's borehole while adjusting the distance between multiple sets of exhaust pipes to accommodate boreholes of different diameters. The air pump is then activated to finally discharge external gas from the exhaust port into the workpiece's borehole. The airflow removes debris adhering to the borehole wall. Simultaneous activation of negative pressure and air jets enables combined chip removal, loosening and removing stubborn debris, which is then immediately carried away by the continuous negative pressure airflow. This achieves "peeling and removal," eliminating secondary deposition and fundamentally ensuring thorough chip removal.

[0017] 4. The drilling device for manufacturing metal agricultural machinery, through the installation of the adjustment device, causes the arc-shaped baffle to move and cause the arc-shaped air outlet to coincide with the exhaust port. Since there are multiple sets of exhaust ports, the arc-shaped air outlet can be adjusted to coincide with the exhaust port at different positions, thereby enabling "fixed-point removal" of stubborn waste in specific locations and improving cleaning efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the drilling device for manufacturing metal agricultural machinery according to the present invention; Figure 2 This is a schematic diagram of the structure of the reinforcement bracket of the present invention; Figure 3 This is a schematic diagram of the structure of the limiting frame of the present invention; Figure 4 This is a schematic diagram of the structure of the annular plate of the present invention; Figure 5 This is a schematic diagram of the internal structure of the sealing cap of the present invention; Figure 6 This is a schematic diagram of the internal structure of the limiting port of the present invention; Figure 7 This is a schematic diagram of the structure of the annular trachea of ​​the present invention; Figure 8 This is a schematic diagram of the exhaust pipe structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the arc-shaped baffle of the present invention.

[0019] In the diagram: 1. Processing table; 2. First electric slide rail; 3. Moving plate; 4. Limiting frame; 5. Lifting assembly; 6. Chip removal device; 61. Annular plate; 62. Sealing cover; 63. Limiting port; 64. Suction pipe; 65. Filter cartridge; 66. Negative pressure suction pump; 67. Switching device; 671. First sealing plate; 672. First clamping plate; 673. Second electric telescopic rod; 674. Second sealing plate; 675. Second clamping plate; 676. Third electric telescopic rod; 68. Jet device; 681. Annular air pipe; 682. Fourth... Electric telescopic rod; 683, First corrugated pipe; 684, Support pipe; 685, Air pump; 686, Air outlet pipe; 687, Second corrugated pipe; 688, Connecting pipe; 689, Adjusting device; 6891, Third electric slide rail; 6892, Connecting frame; 6893, Arc-shaped baffle; 6894, Arc-shaped air outlet; 6810, Exhaust pipe; 6811, Fifth electric telescopic rod; 6812, Exhaust hole; 7, Reinforcing bracket; 8, Second electric slide rail; 9, Sliding plate; 10, First electric telescopic rod; 11, Drilling assembly. Detailed Implementation

[0020] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] For the first embodiment, please refer to... Figures 1-9 This invention provides a technical solution: a drilling device for manufacturing metal agricultural machinery, comprising: The processing table 1 has a table surface and support legs set at the bottom of the table surface. A first electric slide rail 2 is symmetrically installed on the outer side of the processing table 1. A moving plate 3 is slidably connected inside the first electric slide rail 2 through an electric slider. Limiting frame 4, which is provided in two sets, with lifting components 5 fixedly connected to the bottom of each set of limiting frames 4, and a chip removal device 6 fixedly connected to the outside of the limiting frame 4 via a bracket. The reinforcement bracket 7 is fixedly connected to the bottom of the processing table 1. The outer side of the reinforcement bracket 7 is fixedly connected to the second electric slide rail 8. The inside of the second electric slide rail 8 is slidably connected to the slide plate 9 through the electric slider. The bottom of the slide plate 9 is fixedly connected to the first electric telescopic rod 10. The movable end of the first electric telescopic rod 10 is fixedly connected to the drilling assembly 11 through the bracket. The chip removal device 6 includes: The annular plate 61 has an annular plate structure and a sealing cover 62 disposed at the bottom of the annular plate 61. The top of the sealing cover 62 is fixedly connected to the bottom of the annular plate 61 by a bracket. A limit port 63 is opened at the bottom of the sealing cover 62. A switching device 67 is installed at the bottom of the annular plate 61. An air jet device 68 is installed on the inner wall of the sealing cover 62. The suction pipe 64 passes through the sealing cover 62 and is fixedly connected to the top of the sealing cover 62. The top of the suction pipe 64 is connected to the filter cartridge 65, and the top of the filter cartridge 65 is connected to the negative pressure suction pump 66.

[0022] The switching device 67 includes: The first sealing plate 671 has an annular plate structure and a first retaining plate 672 disposed on the outside of the first sealing plate 671. A second electric telescopic rod 673 is fixedly connected to the top of the first retaining plate 672. The second sealing plate 674 has an annular plate structure and a second retaining plate 675 disposed on the outer side of the second sealing plate 674. A third electric telescopic rod 676 is fixedly connected to the top of the second retaining plate 675.

[0023] The fixed end of the lifting assembly 5 is fixedly connected to the top of the moving plate 3. The bottom of the suction pipe 64 is connected to the inside of the sealing cover 62. The filter cylinder 65 is equipped with a filter assembly. The filter cylinder 65 has a material inlet on its outer side. The bottom of the filter cylinder 65 is fixedly connected to the top of the sealing cover 62.

[0024] One side of the first card plate 672 is fixedly connected to the outer wall of the first sealing plate 671. Two sets of the first card plates 672 are provided, and the two sets of the first card plates 672 are symmetrically distributed on both sides of the first sealing plate 671. The top of the second electric telescopic rod 673 is fixedly connected to the bottom of the annular plate 61.

[0025] One side of the second clamping plate 675 is fixedly connected to the outer wall of the second sealing plate 674. Two sets of second clamping plates 675 are provided, and the two sets of second clamping plates 675 are symmetrically distributed on both sides of the second sealing plate 674. The top of the third electric telescopic rod 676 is fixedly connected to the bottom of the annular plate 61. The outer wall of the first sealing plate 671 is slidably connected to the inner wall of the sealing cover 62. The outer wall of the second sealing plate 674 is slidably connected to the inner wall of the first sealing plate 671. The first clamping plate 672 and the second clamping plate 675 are staggered.

[0026] The jet device 68 includes an annular air pipe 681. A fourth electric telescopic rod 682 is fixedly connected to the outer side of the annular air pipe 681 via a bracket. A first corrugated pipe 683 is connected to the top of the annular air pipe 681 via a connecting pipe. A support pipe 684 is connected to the end of the first corrugated pipe 683 away from the annular air pipe 681. An air pump 685 is connected to the top of the support pipe 684. An exhaust pipe 686 is connected to the inner side of the annular air pipe 681. A second corrugated pipe 687 is connected to the end of the exhaust pipe 686 away from the annular air pipe 681. An exhaust pipe 6810 is connected to the end of the second corrugated pipe 687 away from the exhaust pipe 686 via a connecting pipe 688. A fifth electric telescopic rod 6811 is fixedly connected to the outer side of the connecting pipe 688 via a bracket. An adjustment device 689 is installed on the outer side of the exhaust pipe 6810. Exhaust holes 6812 are evenly distributed on the outer side of the exhaust pipe 6810.

[0027] The top of the fourth electric telescopic rod 682 is fixedly connected to the inner wall of the sealing cover 62. The air outlet of the air pump 685 is connected to the support pipe 684. The outer side of the air pump 685 is fixedly connected to the top of the sealing cover 62 through the bracket. The support pipe 684 passes through the sealing cover 62 and is fixedly connected to the top of the sealing cover 62.

[0028] Multiple sets of air outlet pipes 686 are provided, and the multiple sets of air outlet pipes 686 are evenly distributed on the inner side of the annular air pipe 681. The fixed end of the fifth electric telescopic rod 6811 is fixedly connected to the outer wall of the annular air pipe 681 through a bracket.

[0029] The adjustment device 689 includes a third electric slide rail 6891. The interior of the third electric slide rail 6891 is slidably connected to a connecting frame 6892 via an electric slider. An arc-shaped baffle 6893 is fixedly connected to the outer wall of the connecting frame 6892. An arc-shaped air vent 6894 is provided on the arc-shaped baffle 6893.

[0030] The outer side of the third electric slide rail 6891 is fixedly connected to the outer wall of the exhaust pipe 6810 via a bracket, and one side of the arc-shaped baffle 6893 is slidably connected to the outer wall of the exhaust pipe 6810.

[0031] In use, the worker places the metal part to be processed on the processing table 1, then activates the second electric slide rail 8. The electric slider inside the second electric slide rail 8 moves the sliding plate 9. The sliding plate 9, via the first electric telescopic rod 10, moves the drilling assembly 11 to the designated position. Then, the extension of the first electric telescopic rod 10 pushes the drilling assembly 11 down to the appropriate position, allowing the drilling assembly 11 to drill the metal workpiece. After drilling is complete, the movable end of the first electric telescopic rod 10 retracts, removing the drilling assembly 11 from the workpiece surface. Then, the first electric slide rail 2... The internal electric slider drives the moving plate 3 to move. The moving plate 3 drives the annular plate 61 to move through the lifting component 5 and the limit frame 4. The annular plate 61 drives the sealing cover 62 to move above the workpiece drilling area. Then, the lifting component 5 drives the sealing cover 62 to gradually approach and finally press against the workpiece surface. After the sealing cover 62 is in close contact with the workpiece surface, the negative pressure suction pump 66 is turned on. The negative pressure is used to suck the loose waste in the workpiece drilling hole from the suction pipe 64. The waste enters the filter cylinder 65 and is filtered. When cleaning the debris, there is no need to directly contact the inner wall of the hole to avoid scratches and abrasions.

[0032] When drilling a narrow workpiece, the second electric telescopic rod 673 and the third electric telescopic rod 676 are activated simultaneously. The second electric telescopic rod 673 moves the first sealing plate 671 through the first clamping plate 672, while the third electric telescopic rod 676 moves the second sealing plate 674 through the second clamping plate 675. The first sealing plate 671 and the second sealing plate 674 continuously extend out from the sealing cover 62. Since the diameter of the second sealing plate 674 is smaller than that of the first sealing plate 671, and the diameter of the first sealing plate 671 is smaller than that of the sealing cover 62, the second sealing plate 674 contacts the workpiece and presses against the workpiece surface after it extends. When the end face of the workpiece is narrow or when drilling a narrow workpiece, to avoid the sealing cover 62 being too large in diameter and unable to be pressed tightly, the diameter of the sealing cover 62 is adjusted by using the first sealing plate 671 and the second sealing plate 674 to adapt to workpieces of different widths or holes of different diameters, thereby improving the adaptability of the device.

[0033] The fourth electric telescopic rod 682 is activated, causing the annular air pipe 681 to move. The annular air pipe 681, through the fifth electric telescopic rod 6811, drives the connecting pipe 688 to move. Simultaneously, the fifth electric telescopic rod 6811 is activated, and its movable end, through the connecting pipe 688, drives the exhaust pipe 6810 to move. The exhaust pipe 6810 is extended into the workpiece borehole, while the distance between multiple sets of exhaust pipes 6810 is adjusted to accommodate boreholes of different diameters. The suction pump 685 is activated to draw external gas from the support pipe 684 into the first corrugated section. Inside pipe 683, gas enters annular gas pipe 681 and then enters second corrugated pipe 687 through outlet pipe 686. From second corrugated pipe 687, it is discharged into connecting pipe 688 and then into exhaust pipe 6810. Finally, the gas is discharged from exhaust hole 6812 into the drilled hole of the workpiece. The airflow is used to remove the debris attached to the inner wall of the hole. Negative pressure and air jet are activated simultaneously to perform combined chip removal. Stubborn waste chips are loosened and detached, and then immediately carried away by continuous negative pressure airflow, realizing "removal upon peeling". This eliminates secondary deposition and fundamentally ensures the thoroughness of chip removal.

[0034] The third electric slide rail 6891 is activated, and the electric slider inside the third electric slide rail 6891 drives the connecting frame 6892 to move. The connecting frame 6892 drives the arc-shaped baffle 6893 to slide along the outer wall of the exhaust pipe 6810. When the arc-shaped baffle 6893 moves, it causes the arc-shaped air outlet 6894 to coincide with the exhaust port 6812. Since there are multiple sets of exhaust ports 6812, the arc-shaped air outlet 6894 can be adjusted to coincide with the exhaust port 6812 at different positions, thereby enabling "targeted removal" of stubborn waste in specific locations and improving cleaning efficiency.

[0035] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A drilling device for manufacturing metal agricultural machinery, characterized in that, include: A processing table (1) has a table surface and legs provided at the bottom of the table surface. A first electric slide rail (2) is symmetrically installed on the outer side of the processing table (1). A moving plate (3) is slidably connected inside the first electric slide rail (2) through an electric slider. The limiting frame (4) is provided in two sets. The bottom of each of the two sets of the limiting frame (4) is fixedly connected to a lifting component (5). The outer side of the limiting frame (4) is fixedly connected to a chip removal device (6) through a bracket. A reinforcing bracket (7) is fixedly connected to the bottom of the processing table (1). A second electric slide rail (8) is fixedly connected to the outside of the reinforcing bracket (7). A sliding plate (9) is slidably connected inside the second electric slide rail (8) through an electric slider. A first electric telescopic rod (10) is fixedly connected to the bottom of the sliding plate (9). A drilling assembly (11) is fixedly connected to the movable end of the first electric telescopic rod (10) through a bracket. The chip removal device (6) includes: An annular plate (61) has an annular plate structure and a sealing cover (62) disposed at the bottom of the annular plate (61). The top of the sealing cover (62) is fixedly connected to the bottom of the annular plate (61) by a bracket. A limiting port (63) is opened at the bottom of the sealing cover (62). A switching device (67) is installed at the bottom of the annular plate (61). An air jet device (68) is installed on the inner wall of the sealing cover (62). The suction pipe (64) passes through the sealing cover (62) and is fixedly connected to the top of the sealing cover (62). The top of the suction pipe (64) is connected to the filter cylinder (65), and the top of the filter cylinder (65) is connected to the negative pressure suction pump (66).

2. The drilling device for manufacturing metal agricultural machinery according to claim 1, characterized in that: The switching device (67) includes: A first sealing plate (671) has an annular plate structure and a first retaining plate (672) disposed on the outside of the first sealing plate (671). A second electric telescopic rod (673) is fixedly connected to the top of the first retaining plate (672). The second sealing plate (674) has an annular plate structure and a second retaining plate (675) disposed on the outside of the second sealing plate (674). A third electric telescopic rod (676) is fixedly connected to the top of the second retaining plate (675).

3. The drilling device for manufacturing metal agricultural machinery according to claim 1, characterized in that: The fixed end of the lifting assembly (5) is fixedly connected to the top of the moving plate (3), the bottom of the suction pipe (64) is connected to the inside of the sealing cover (62), the filter cylinder (65) is equipped with a filter assembly, the filter cylinder (65) has a material inlet on the outside, and the bottom of the filter cylinder (65) is fixedly connected to the top of the sealing cover (62).

4. The drilling device for manufacturing metal agricultural machinery according to claim 2, characterized in that: One side of the first card plate (672) is fixedly connected to the outer wall of the first sealing plate (671). There are two sets of the first card plates (672), and the two sets of the first card plates (672) are symmetrically distributed on both sides of the first sealing plate (671). The top of the second electric telescopic rod (673) is fixedly connected to the bottom of the annular plate (61).

5. A drilling device for manufacturing metal agricultural machinery according to claim 2, characterized in that: One side of the second card plate (675) is fixedly connected to the outer wall of the second sealing plate (674). There are two sets of the second card plates (675), and the two sets of the second card plates (675) are symmetrically distributed on both sides of the second sealing plate (674). The top of the third electric telescopic rod (676) is fixedly connected to the bottom of the annular plate (61). The outer wall of the first sealing plate (671) is slidably connected to the inner wall of the sealing cover (62). The outer wall of the second sealing plate (674) is slidably connected to the inner wall of the first sealing plate (671). The first card plate (672) and the second card plate (675) are staggered.

6. The drilling device for manufacturing metal agricultural machinery according to claim 1, characterized in that: The jet device (68) includes an annular air pipe (681), with a fourth electric telescopic rod (682) fixedly connected to the outer side of the annular air pipe (681) via a bracket. The top of the annular air pipe (681) is connected to a first corrugated pipe (683) via a connecting pipe. The end of the first corrugated pipe (683) away from the annular air pipe (681) is connected to a support pipe (684). The top of the support pipe (684) is connected to a suction pump (685). The inner side of the annular air pipe (681) is connected to an air outlet pipe (686). The end of the air outlet pipe (686) away from the annular air pipe (681) is connected to a second corrugated pipe (687). The end of the second corrugated pipe (687) away from the air outlet pipe (686) is connected to an exhaust pipe (6810) through a connecting pipe (688). A fifth electric telescopic rod (6811) is fixedly connected to the outside of the connecting pipe (688) through a bracket. An adjustment device (689) is installed on the outside of the exhaust pipe (6810). Exhaust holes (6812) are evenly opened on the outside of the exhaust pipe (6810).

7. The drilling device for manufacturing metal agricultural machinery according to claim 6, characterized in that: The top of the fourth electric telescopic rod (682) is fixedly connected to the inner wall of the sealing cover (62), the air outlet of the air pump (685) is connected to the support pipe (684), the outer side of the air pump (685) is fixedly connected to the top of the sealing cover (62) through the bracket, and the support pipe (684) passes through the sealing cover (62) and is fixedly connected to the top of the sealing cover (62).

8. A drilling device for manufacturing metal agricultural machinery according to claim 6, characterized in that: The air outlet pipe (686) is provided in multiple sets, and the multiple sets of air outlet pipes (686) are evenly distributed on the inner side of the annular air pipe (681). The fixed end of the fifth electric telescopic rod (6811) is fixedly connected to the outer wall of the annular air pipe (681) through a bracket.

9. A drilling device for manufacturing metal agricultural machinery according to claim 6, characterized in that: The adjustment device (689) includes a third electric slide rail (6891), and a connecting frame (6892) is slidably connected inside the third electric slide rail (6891) via an electric slider. An arc-shaped baffle (6893) is fixedly connected to the outer wall of the connecting frame (6892), and an arc-shaped air outlet (6894) is provided on the arc-shaped baffle (6893).

10. A drilling device for manufacturing metal agricultural machinery according to claim 9, characterized in that: The outer side of the third electric slide rail (6891) is fixedly connected to the outer wall of the exhaust pipe (6810) via a bracket, and one side of the arc-shaped baffle (6893) is slidably connected to the outer wall of the exhaust pipe (6810).

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