An NC drilling device for die-cast aluminum thin-wall parts

Abstract

The utility model relates to aluminium thin wall spare processing technical field, concretely relates to a kind of die-casting aluminium thin wall spare NC drilling device, it includes: rectangular base and temporary limiting block, the upper surface of rectangular base is fixedly installed temporary limiting block, the upper surface of temporary limiting block is provided with limiting slot, the inner ring of limiting slot is slidably connected with a pair of symmetrical rectangular moving blocks, the upper surface of rectangular moving block is fixedly connected with L-shaped plate, a pair of L-shaped plate are temporarily fixed with drilling metal between, the immediately above of drilling metal is also provided with processing equipment, the lower surface of rectangular moving block is also provided with cleaning equipment, magnetic chip collection equipment, non-magnetic chip collection equipment, the chip after collection of this equipment will adopt the mode of negative pressure absorption, and the mode of negative pressure absorption will be reset along with rectangular moving block to start, and it does not need to be manually controlled by artificial.

Description

Technical Field

[0001] This utility model relates to the field of aluminum thin-walled parts processing technology, specifically to an NC drilling device for die-cast aluminum thin-walled parts. Background Technology

[0002] With the development of the manufacturing industry, the requirements for machining precision of die-cast aluminum thin-walled parts are becoming increasingly stringent. For example, thin-walled parts in aerospace, electronics and other fields have strict requirements for the dimensional and positional accuracy of holes and the accuracy of threads. Traditional machining methods are difficult to meet these high-precision requirements, and NC machining technology is needed to achieve precise control and ensure the dimensional and positional accuracy of holes and threads.

[0003] Aluminum die castings have low strength. When drilling and tapping ultra-thin aluminum die castings (3.27mm thick) with extreme drilling (effective tooth depth 2.9mm, tooth depth ratio as high as 88.6%, close to the material thickness limit), the use of multi-axis special machines for drilling and tapping in the same industry can lead to broken taps, damaged teeth, insufficient tooth depth, hole wall deformation, or even cracking under the extreme working conditions of thin-walled die castings and high tooth depth ratio.

[0004] When drilling and tapping aluminum die-cast parts, the generated chips are removed by air blowing. However, the air blowing causes the chips to enter the moving frame of the clamping equipment. During the movement of the clamp, the inside of the moving frame will be scraped. Furthermore, the gaps left in the moving frame of the clamp are not enough to be cleaned manually, which will cause the chips to accumulate continuously and affect the stability of the clamping. Utility Model Content

[0005] Given that the chips generated during drilling and tapping of aluminum die castings are removed by air blowing, the air blowing will cause the chips to enter the moving frame of the clamping equipment. During the movement of the clamp, the inside of the moving frame will be scraped. Furthermore, the gaps left in the moving frame of the clamp are insufficient for manual cleaning, which will cause the chips to accumulate continuously and affect the stability of the clamping. To solve the above technical problems, this utility model provides the following technical solution: an NC drilling device for die-cast aluminum thin-walled parts, comprising: a rectangular base and a temporary limiting block, wherein the temporary limiting block is fixedly installed on the upper surface of the rectangular base, a limiting groove is provided on the upper surface of the temporary limiting block, a pair of symmetrical rectangular moving blocks are slidably connected to the inner ring of the limiting groove, an L-shaped plate is fixedly connected to the upper surface of the rectangular moving block, and drilling metal is temporarily fixed between the pair of L-shaped plates. A processing device is also provided directly above the drilling metal, and a cleaning device, a magnetic chip collection device, and a non-magnetic chip gathering device are also provided on the lower surface of the rectangular moving block. The cleaning device includes: a rectangular loading plate, a rectangular mounting plate on the lower surface of the rectangular loading plate, an array of equally spaced cleaning soft brushes on the lower surface of the rectangular mounting plate, a rectangular storage sleeve extending through the lower surface of the rectangular mounting plate, and an L-shaped push rod on the vertical surface inside the limiting groove.

[0006] As a preferred embodiment of the NC drilling device for die-cast aluminum thin-walled parts described in this utility model, a rectangular moving plate is provided inside the rectangular storage sleeve, a rubber ring is provided on the outer ring of the rectangular moving plate, a pair of cylindrical rods are fixedly connected to the lower surface of the rectangular moving plate, and an L-shaped mounting plate is fixedly connected to the rod body of the pair of cylindrical rods.

[0007] In a preferred embodiment of the NC drilling device for die-cast aluminum thin-walled parts described in this utility model, several cleaning strips with equal spacing are fixedly arranged on the vertical surface of the L-shaped mounting plate. Rectangular moving grooves are provided on the upper surface of the L-shaped mounting plate and the lower surface of the rectangular loading plate. T-shaped moving blocks are slidably connected inside each pair of rectangular moving grooves. Ball bearings are slidably connected on the vertical surface of each pair of T-shaped moving blocks. U-shaped limiting plates are provided on the opposite surfaces of each pair of T-shaped moving blocks. Rotating rods are provided through the vertical surfaces of each pair of U-shaped limiting plates. Each pair of rotating rods is rotatably connected to the same rectangular adjusting rod.

[0008] As a preferred embodiment of the NC drilling device for die-cast aluminum thin-walled parts described in this utility model, the magnetic chip collection device includes: a U-shaped docking plate, a cylindrical mounting rod rotatably connected to the inner ring of the U-shaped docking plate, a cylindrical tube fitted onto the rod body of the cylindrical mounting rod, an installation groove provided on the arc surface of the cylindrical tube, an adsorption magnet installed on the inner ring of the installation groove, and a through gear disk fixedly connected to the rod body of the cylindrical mounting rod.

[0009] In a preferred embodiment of the NC drilling device for die-cast aluminum thin-walled parts described in this utility model, a pair of symmetrical L-shaped fixing rods are fixedly installed on the lower surface of the U-shaped docking plate, and the same arc-shaped blocking sleeve is fixedly connected to the vertical surfaces of the pair of L-shaped fixing rods.

[0010] As a preferred embodiment of the NC drilling device for die-cast aluminum thin-walled parts described in this utility model, the non-magnetic chip gathering device includes: a rectangular fixing block, a rectangular frame fixedly installed on the lower surface of the rectangular fixing block, a ring of polyurethane scrapers provided on the lower surface of the rectangular frame, a docking groove provided on the lower surface of the rectangular fixing block, a rectangular positioning sleeve slidably connected to the docking groove, a U-shaped frame fixedly connected to the lower surface of the rectangular positioning sleeve, a pair of rectangular grooves provided on the rectangular positioning sleeve, a memory spring connected to the vertical surface inside the rectangular grooves, a rectangular plate connected to the other end of the memory spring, an inclined limiting block fixedly connected to the vertical surface of the rectangular plate away from the memory spring, and an arc-shaped docking plate slidably connected to the vertical surface of the rectangular positioning sleeve.

[0011] In a preferred embodiment of the NC drilling device for die-cast aluminum thin-walled parts described in this utility model, a pair of symmetrical rectangular sleeves are fixedly installed on the upper surface of the temporary limiting block. A push block is provided through the vertical surface of the rectangular sleeve. An L-shaped push rod is provided on the vertical surface of the push block away from the rectangular sleeve. The L-shaped push rod is fixedly connected to a rectangular moving block. A rectangular ring is fitted on the rod body of the push block inside the rectangular sleeve. A sealing ring is provided on the outer ring of the rectangular ring. A round tube is provided through the vertical surface of the rectangular sleeve. An air extraction pipe is connected through the vertical surface of the rectangular sleeve away from the push block. Both of the air extraction pipes are connected through the same collection box. A pair of circular sleeves with different inner diameters are fixedly connected to the inner ring of the circular tube. An arc-shaped sleeve is fixedly connected to the cross-section of one of the circular sleeves, and a sealing ball is slidably connected to the inner ring of the arc-shaped sleeve.

[0012] As a preferred embodiment of the NC drilling device for die-cast aluminum thin-walled parts described in this utility model, a rectangular filter screen is provided on the vertical surface inside the collection box, a rectangular baffle is fixedly installed on the bottom surface inside the collection box, a U-shaped push-pull handle is slidably connected to the vertical surface of the collection box, an arc frame is also installed on the inner ring of the collection box, and an injection port is provided through the upper surface of the arc frame.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art: 1. After the workpiece is processed, the equipment collects the chips on the inner wall of the limiting groove by moving a rectangular moving block. The collection equipment can use different collection methods for non-magnetic chips (aluminum die castings) and magnetic chips. When facing magnetic chips, the equipment uses magnetic attraction to collect them, while non-magnetic chips are collected by a polyurethane scraper. The cleaning soft brush is also equipped with an automatic self-cleaning function for chips wrapped on the brush.

[0014] 2. The equipment uses negative pressure to absorb the collected chips, and the negative pressure absorption will start as the rectangular moving block resets, without the need for manual operation.

[0015] 3. The equipment is also equipped with a function to prevent the chips from scattering after they have been collected. When the collection box is tilted, the chips will not scatter due to external influences. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the workpiece and cutting tool during machining according to this utility model; Figure 3 This is a bottom view of the rectangular movable block of this utility model; Figure 4 This is a schematic diagram of the connection structure at the rectangular loading plate of this utility model; Figure 5 This is a schematic diagram of the connection structure at the L-shaped mounting plate of this utility model; Figure 6 This is a schematic diagram of the connection structure of the magnetic chip collection device of this utility model; Figure 7 This is a schematic diagram of the docking structure of the docking groove and the rectangular positioning sleeve of this utility model; Figure 8 This is a schematic diagram of the internal connection structure of the circular tube of this utility model; Figure 9 This is a schematic diagram of the internal structure of the collection box of this utility model.

[0018] The labels in the diagram represent: 1. Rectangular base; 2. Temporary limiting block; 3. Rectangular moving block; 4. Processing equipment; 5. Cleaning equipment; 6. Magnetic chip collection equipment; 7. Non-magnetic chip collection equipment; 8. Rectangular loading plate; 9. Rectangular mounting plate; 10. Cleaning soft brush; 11. Rectangular storage sleeve; 12. L-shaped mounting plate; 13. Cleaning strip; 14. Rectangular moving groove; 15. Rectangular adjusting rod; 16. U-shaped docking plate; 17. Cylindrical mounting rod; 18. Circular 19. Column; 20. Adsorption magnet; 21. Gear disk; 22. Arc-shaped blocking sleeve; 23. Rectangular fixing block; 24. Rectangular frame; 25. Docking groove; 26. Rectangular positioning sleeve; 27. Memory spring; 28. Inclined limiting block; 29. ​​Arc-shaped docking plate; 30. Rectangular sleeve; 31. Circular sleeve; 32. Arc-shaped sleeve; 33. Sealing ball; 34. Collection box; 35. Rectangular filter screen; 36. Rectangular baffle; 37. U-shaped push-pull handle; 38. Arc-shaped frame; 39. Injection port. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] The present invention will be further described below with reference to the embodiments. Example 1:

[0021] Reference Figure 1-7 This is the first embodiment of the present utility model, which discloses an NC drilling device for die-cast aluminum thin-walled parts, including: a rectangular base 1 and a temporary limiting block 2. The temporary limiting block 2 is fixedly installed on the upper surface of the rectangular base 1. A limiting groove is provided on the upper surface of the temporary limiting block 2. A pair of symmetrical rectangular moving blocks 3 are slidably connected to the inner ring of the limiting groove. An L-shaped plate is fixedly connected to the upper surface of the rectangular moving block 3. A workpiece is temporarily fixed between the pair of L-shaped plates. A processing device 4 is also provided directly above the workpiece. A cleaning device 5, a magnetic chip collection device 6, and a non-magnetic chip gathering device 7 are also provided on the lower surface of the rectangular moving block 3. NC drilling and direct thread forming equipment for die-cast aluminum thin-walled parts typically includes a machine body, control system, drilling mechanism, thread forming mechanism, and workpiece clamping mechanism. The machine body, serving as the basic support structure, is generally made of high-strength steel or cast iron, such as HT200 cast iron, providing excellent rigidity and stability. This ensures the equipment will not deform due to vibration or external forces during processing, providing a stable mounting base for other components. The control system is usually based on a CNC system, such as Siemens 840D or FANUC 0i-MD, and is equipped with an operation panel. Operators can input machining programs and set machining parameters through the control panel, which also includes control and machining process monitoring. The drilling mechanism generally includes X, Y, and Z axis linear modules, driven by servo motors and ball screw pairs, achieving precise movement of the drill bit in three-dimensional space, accurate to ±0.01mm. It also includes a drilling spindle, powered by a spindle motor, driving the drill bit to rotate at high speed. The speed can be adjusted within a certain range according to machining requirements, typically 1000- 10000r / min, The cleaning device 5 includes: a rectangular loading plate 8, a rectangular mounting plate 9 on the lower surface of the rectangular loading plate 8, an array of equally spaced cleaning soft brushes 10 on the lower surface of the rectangular mounting plate 9, a rectangular storage sleeve 11 extending through the lower surface of the rectangular mounting plate 9, an L-shaped push rod on the vertical surface inside the limiting groove, and a connecting strip inside the limiting groove. The rectangular connecting strip is fixedly connected to the toothed plate, and the toothed plate and the gear disk 20 are meshed with each other.

[0022] The rectangular storage sleeve 11 has a rectangular movable plate inside, and a rubber ring is provided around the outer ring of the rectangular movable plate. A pair of cylindrical rods are fixedly connected to the lower surface of the rectangular movable plate, and an L-shaped mounting plate 12 is fixedly connected to the rods of the pair of cylindrical rods.

[0023] Several cleaning strips 13 with equal spacing are fixedly installed on the vertical surface of the L-shaped mounting plate 12. Rectangular moving grooves 14 are opened on the upper surface of the L-shaped mounting plate 12 and the lower surface of the rectangular loading plate 8. T-shaped moving blocks are slidably connected inside the pair of rectangular moving grooves 14. Ball bearings are slidably connected on the vertical surface of the T-shaped moving blocks. U-shaped limiting plates are provided on the opposite surfaces of the pair of T-shaped moving blocks. Rotating rods are passed through the vertical surfaces of the pair of U-shaped limiting plates. The pair of rotating rods are rotatably connected to the same rectangular adjusting rod 15.

[0024] The magnetic chip collection device 6 includes: a U-shaped docking plate 16, a cylindrical mounting rod 17 rotatably connected to the inner ring of the U-shaped docking plate 16, a cylindrical tube 18 fitted on the rod body of the cylindrical mounting rod 17, an installation groove opened on the arc surface of the cylindrical tube 18, an adsorption magnet 19 installed on the inner ring of the installation groove, and a through gear disk 20 fixedly connected to the rod body of the cylindrical mounting rod 17.

[0025] A pair of symmetrical L-shaped fixing rods are fixedly installed on the lower surface of the U-shaped docking plate 16. The same arc-shaped blocking sleeve 21 is fixedly connected to the vertical surface of the pair of L-shaped fixing rods. The non-magnetic chip gathering device 7 includes: a rectangular fixing block 22, a rectangular frame 23 is fixedly installed on the lower surface of the rectangular fixing block 22, a polyurethane scraper is provided on the lower surface of the rectangular frame 23, a docking groove 24 is also provided on the lower surface of the rectangular fixing block 22, a rectangular positioning sleeve 25 is slidably connected to the docking groove 24, a U-shaped frame is fixedly connected to the lower surface of the rectangular positioning sleeve 25, and a pair of rectangular grooves are also provided on the rectangular positioning sleeve 25.

[0026] A memory spring 26 is connected to the vertical surface inside the rectangular groove. The other end of the memory spring 26 is connected to a rectangular plate. An inclined limiting block 27 is fixedly connected to the vertical surface of the rectangular plate away from the memory spring 26. An arc-shaped docking plate 28 is slidably connected to the vertical surface of the rectangular positioning sleeve 25.

[0027] When using it, first align the side of the workpiece that needs to be drilled with the processing equipment. After placement, simply start the drive motor. Because the drive motor is connected to the lead screw, and a pair of rectangular moving blocks are mounted on the lead screw, the pair of rectangular moving blocks move relative to each other as the drive motor starts, thereby clamping and limiting the workpiece. After clamping is completed, the processing equipment 4 is started to drill and tap the workpiece, and then the chips are cleaned by blowing air. After processing for a period of time, the rectangular moving block 3 has been reset. At this point, the drive motor can be started directly. The drive motor is connected to the lead screw, and a pair of rectangular moving blocks 3 are mounted on the lead screw. Only one rectangular moving block 3 can move. When the rectangular moving block 3 moves, the lower surface of the rectangular mounting plate 9 is provided with an array of equally spaced cleaning soft brushes 10. As the rectangular moving block 3 moves, the cleaning soft brushes 10 can collect the first wave of larger or rolled chips. If the chips are magnetic, the smaller particles will be attracted by the magnet 19 and thus adhere to the outer wall of the arc-shaped blocking sleeve 21. The polyurethane scraper provided on the lower surface of the rectangular frame 23 will prevent the non-magnetic chips that are adhered to the cutting fluid or the missed magnetic chips from the inner wall of the limiting frame from being missed. Finally, a cleaning sponge is set on the U-shaped frame to clean the cutting fluid. An L-shaped push rod is also set on the vertical surface inside the limiting groove, and a docking strip is also set inside the limiting groove. The rectangular docking strip is fixedly connected to the toothed plate, and the toothed plate and the gear disk 20 are meshed with each other. Therefore, during the movement of the rectangular moving block 3, the T-shaped moving block at the top will be pushed by the thrust, causing the L-shaped mounting rod 12 to descend. This cleans the chips wrapped around the cleaning soft brush 10, which then fall into the collection groove provided on the bottom surface of the limiting frame. The inside of the collection groove is also connected to the collection tube that is connected to the collection box 33. During the movement of the rectangular moving block 3, the gear disk 20 on the cylindrical mounting rod 17 will encounter the toothed plate, causing the cylindrical cylinder 18 to rotate 180 degrees. The arc-shaped blocking sleeve 21 has baffles on both sides. So, as the cylindrical cylinder 18 gradually starts to rotate, the chips fall into the collection groove. The chips left on the polyurethane scraper will fall freely with the appearance of the collection groove, thus completing the chip collection. Example 2:

[0028] Reference Figure 1 , 7 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a pair of symmetrical rectangular sleeves 29 are fixedly installed on the upper surface of the temporary limiting block 2. A push block is provided through the vertical surface of the rectangular sleeve 29. An L-shaped push rod is provided on the vertical surface of the push block away from the rectangular sleeve 29. The L-shaped push rod is fixedly connected to the rectangular moving block 3. A rectangular ring is fitted on the rod body inside the rectangular sleeve 29. A sealing ring is provided on the outer ring of the rectangular ring. A round tube is provided through the vertical surface of the rectangular sleeve 29. An air extraction pipe is connected through the vertical surface of the rectangular sleeve 29 away from the push block. Both air extraction pipes are connected through the same collection box 33. The internal structure of the suction pipe connecting the rectangular sleeve 29 and the collection box 33 is the same as that inside the round pipe. However, in the suction pipe, the smaller inner diameter ring sleeve 30 is farther away from the rectangular sleeve 29, while in the round pipe, the smaller inner diameter ring sleeve 30 is closer to the rectangular sleeve 29.

[0029] A pair of circular sleeves 30 with different inner diameters are fixedly connected to the inner ring of the circular tube. An arc-shaped sleeve 31 is fixedly connected to the cross section of one of the circular sleeves 30, and a sealing ball 32 is slidably connected to the inner ring of the arc-shaped sleeve 31.

[0030] When in use, as the rectangular moving block 3 moves continuously, the push block will be pushed because the push block is fitted with a rectangular ring on the rod inside the rectangular sleeve 29. A sealing ring is provided on the outer ring of the rectangular ring. The inside of the suction pipe connecting the rectangular sleeve 29 and the collection box 33 is also provided with the same structure as the inside of the round pipe. However, in the suction pipe, the smaller inner diameter ring sleeve 30 is far away from the rectangular sleeve 29, while in the round pipe, the smaller inner diameter ring sleeve 30 is close to the rectangular sleeve 29. Therefore, the air pushed by the pusher will be discharged from the round tube. When the rectangular moving block 3 is reset, the suction force generated will be generated from the suction pipe. Since the suction pipe is connected to the collection box 33, and the collection box 33 is also connected to the collection pipe, which is connected to the collection groove, when the rectangular moving block 3 is reset, the chips will be sucked into the collection box 33 by suction force.

[0031] The remaining structure is the same as that in Example 1. Example 3:

[0032] Reference Figure 1 , 9 This is the second embodiment of the present invention. The difference between this embodiment and the first and second embodiments is that: a rectangular filter screen 34 is provided on the vertical surface inside the collection box 33; a rectangular baffle 35 is fixedly installed on the bottom surface inside the collection box 33; a U-shaped push-pull handle 36 is slidably connected to the vertical surface of the collection box 33; an arc frame 37 is also installed on the inner ring of the collection box 33; and an injection port 38 is provided through the upper surface of the arc frame 37.

[0033] After the operation steps of Example 2 are completed, the chips will be on the upper surface of the filter screen 34. If it is necessary to wet the chips inside the collection box 33, push the U-shaped push-pull handle 36. Because the U-shaped push-pull handle 36 is slidably connected to the collection box 33, and the end of the U-shaped push-pull handle 36 inside the collection box 33 is connected to the same pressing plate, and the arc frame 37 is L-shaped, and a needle nozzle is installed at the vertical part of the arc frame 37, so when the storage bag connected to the arc frame 37 is squeezed, the cutting fluid will be sprayed out from the nozzle, and finally the chip wetting process is completed.

[0034] The remaining structures are the same as those in Examples 1 and 2.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A die-cast aluminum thin-walled part NC drilling device, characterized in that, include: A rectangular base (1) and a temporary limiting block (2) are provided. The temporary limiting block (2) is fixedly installed on the upper surface of the rectangular base (1). A limiting groove is provided on the upper surface of the temporary limiting block (2). A pair of symmetrical rectangular moving blocks (3) are slidably connected to the inner ring of the limiting groove. An L-shaped plate is fixedly connected to the upper surface of the rectangular moving block (3). A workpiece is temporarily fixed between the pair of L-shaped plates. A processing device (4) is also provided directly above the workpiece. A cleaning device (5), a magnetic chip collection device (6), and a non-magnetic chip gathering device (7) are also provided on the lower surface of the rectangular moving block (3). The cleaning device (5) includes: a rectangular loading plate (8), a rectangular mounting plate (9) is provided on the lower surface of the rectangular loading plate (8), an array of cleaning soft brushes (10) with the same spacing is provided on the lower surface of the rectangular mounting plate (9), a rectangular storage sleeve (11) is provided through the lower surface of the rectangular mounting plate (9), and an L-shaped push rod is also provided on the vertical surface inside the limiting groove.

2. The NC drilling device for die-cast aluminum thin-walled parts according to claim 1, characterized in that: The rectangular storage sleeve (11) has a rectangular movable plate inside, and a rubber ring is provided on the outer ring of the rectangular movable plate. A pair of cylindrical rods are fixedly connected to the lower surface of the rectangular movable plate, and an L-shaped mounting plate (12) is fixedly connected to the rod body of the pair of cylindrical rods.

3. The NC drilling device for die-cast aluminum thin-walled parts according to claim 2, characterized in that: Several cleaning strips (13) with the same spacing are fixedly provided on the vertical surface of the L-shaped mounting plate (12). Rectangular moving grooves (14) are provided on the upper surface of the L-shaped mounting plate (12) and the lower surface of the rectangular loading plate (8). T-shaped moving blocks are slidably connected inside each pair of rectangular moving grooves (14). Ball bearings are slidably connected on the vertical surface of each pair of T-shaped moving blocks. U-shaped limiting plates are provided on the opposite surfaces of each pair of T-shaped moving blocks. Rotating rods are provided through the vertical surfaces of each pair of U-shaped limiting plates. Each pair of rotating rods is rotatably connected to the same rectangular adjusting rod (15).

4. The NC drilling device for die-cast aluminum thin-walled parts according to claim 1, characterized in that: The magnetic chip collection device (6) includes: a U-shaped docking plate (16), a cylindrical mounting rod (17) is rotatably connected to the inner ring of the U-shaped docking plate (16), a cylindrical tube (18) is fitted on the rod body of the cylindrical mounting rod (17), an installation groove is provided on the arc surface of the cylindrical tube (18), an adsorption magnet (19) is installed on the inner ring of the installation groove, and a through gear disk (20) is fixedly connected to the rod body of the cylindrical mounting rod (17).

5. The NC drilling device for die-cast aluminum thin-walled parts according to claim 4, characterized in that: A pair of symmetrical L-shaped fixing rods are fixedly installed on the lower surface of each U-shaped docking plate (16), and the same arc-shaped blocking sleeve (21) is fixedly connected to the vertical surfaces of the pair of L-shaped fixing rods.

6. The NC drilling device for die-cast aluminum thin-walled parts according to claim 1, characterized in that: The non-magnetic chip gathering device (7) includes: a rectangular fixing block (22), a rectangular frame (23) fixedly installed on the lower surface of the rectangular fixing block (22), a polyurethane scraper is provided on the lower surface of the rectangular frame (23), a docking groove (24) is also provided on the lower surface of the rectangular fixing block (22), a rectangular positioning sleeve (25) is slidably connected to the docking groove (24), a U-shaped frame is fixedly connected to the lower surface of the rectangular positioning sleeve (25), a pair of rectangular grooves are also provided on the rectangular positioning sleeve (25), a memory spring (26) is connected to the vertical surface inside the rectangular groove, a rectangular plate is connected to the other end of the memory spring (26), an inclined limiting block (27) is fixedly connected to the vertical surface of the rectangular plate away from the memory spring (26), and an arc-shaped docking plate (28) is slidably connected to the vertical surface of the rectangular positioning sleeve (25).

7. The NC drilling device for die-cast aluminum thin-walled parts according to claim 6, characterized in that: A pair of symmetrical rectangular sleeves (29) are fixedly installed on the upper surface of the temporary limiting block (2). A push block is provided through the vertical surface of the rectangular sleeve (29). An L-shaped push rod is provided on the vertical surface of the push block away from the rectangular sleeve (29). The L-shaped push rod is fixedly connected to a rectangular moving block (3). A rectangular ring is fitted on the rod body of the push block inside the rectangular sleeve (29). A sealing ring is provided on the outer ring of the rectangular ring. A round tube is provided through the vertical surface of the rectangular sleeve (29). An air extraction pipe is connected through the vertical surface of the rectangular sleeve (29) away from the push block. Both of the air extraction pipes are connected through the same collection box (33).

8. The NC drilling device for die-cast aluminum thin-walled parts according to claim 7, characterized in that: A pair of circular sleeves (30) with different inner diameters are fixedly connected to the inner ring of the circular tube. An arc sleeve (31) is fixedly connected to the cross section of one of the circular sleeves (30), and a sealing ball (32) is slidably connected to the inner ring of the arc sleeve (31).

9. The NC drilling device for die-cast aluminum thin-walled parts according to claim 8, characterized in that: A rectangular filter screen (34) is provided on the vertical surface inside the collection box (33). A rectangular baffle (35) is fixedly installed on the bottom surface inside the collection box (33). A U-shaped push-pull handle (36) is slidably connected to the vertical surface of the collection box (33). An arc frame (37) is also installed on the inner ring of the collection box (33). An injection port (38) is provided through the upper surface of the arc frame (37).

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