A precision metal part production device and its usage method

Abstract

The present invention discloses a precision metal part production device and its usage method, relating to the technical field of precision metal part production. To solve the problems that the existing metal part shells are mostly cylindrical structures, it is difficult to process multiple metal parts simultaneously during the sandblasting process, resulting in low overall efficiency, and it is difficult to perform sandblasting operations on the outer walls of the metal part shells comprehensively at one time. Both sides above the sandblasting box are fixedly installed with mounting rod sockets; it further includes: a combined mounting rod, which is installed above the mounting rod sockets. A plurality of screw holes are provided on the outer wall of the combined mounting rod. A screw rod is fixedly installed inside the screw holes. One end of the screw rod is fixedly installed with a control mechanism. A plurality of annularly distributed second electric telescopic rods are fixedly installed on the outer wall of the control mechanism. The telescopic end of the second electric telescopic rod is fixedly installed with an arc-shaped electromagnet, and both the telescopic end of the second electric telescopic rod and the control end of the electromagnet are electrically connected to the output end of the control mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of precision metal part production, and specifically relates to a precision metal part production device and its usage method. Background Art

[0002] During the production process of precision metal parts, in order to process the surface roughness of the metal parts and improve the mechanical properties of the metal part surface, a sandblasting device is usually required to perform production and processing on the metal parts.

[0003] Most of the existing metal part housings are cylindrical structures. During the sandblasting process, it is difficult to process multiple metal parts simultaneously at one time, resulting in low overall efficiency, and it is difficult to perform sandblasting operations on the outer wall of the metal part housing comprehensively at one time. For this reason, we provide a precision metal part production device and its usage method. Summary of the Invention

[0004] The purpose of the present invention is to provide a precision metal part production device and its usage method to solve the problems mentioned in the above background art that most of the existing metal part housings are cylindrical structures, it is difficult to process multiple metal parts simultaneously at one time during the sandblasting process, resulting in low overall efficiency, and it is difficult to perform sandblasting operations on the outer wall of the metal part housing comprehensively at one time.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A precision metal part production device, including a sandblasting box, and both sides above the sandblasting box are fixedly installed with mounting rod sockets;

[0006] It further includes:

[0007] A combined mounting rod, which is installed above the mounting rod socket. A plurality of screw holes are provided on the outer wall of the combined mounting rod. A screw rod is fixedly installed inside the screw hole. One end of the screw rod is fixedly installed with a control mechanism. A plurality of annularly distributed second electric telescopic rods are fixedly installed on the outer wall of the control mechanism. The telescopic end of the second electric telescopic rod is fixedly installed with an arc-shaped electromagnet, and both the second electric telescopic rod and the control end of the electromagnet are electrically connected to the output end of the control mechanism. A metal part housing is installed on the outer wall of the electromagnet, and the metal part housing is magnetically fixed to the electromagnet;

[0008] A sandblasting cylinder, which is fixedly installed at the middle position inside the sandblasting box. A plurality of annularly distributed sandblasting guns are fixedly installed on the outer wall of the sandblasting cylinder. One end of the sandblasting gun is fixedly installed with a sandblasting nozzle, and the sandblasting nozzle extends into the sandblasting cylinder.

[0009] Preferably, a support frame is fixedly installed above the sandblasting box, a lead screw linear module is fixedly installed above the support frame, an electric cylinder is installed below the lead screw linear module, and the lead screw linear module is slidably connected to the electric cylinder through a slider.

[0010] Preferably, the electric cylinder includes a piston rod, a rotating motor is fixedly installed at the lower end of the piston rod, and the electric cylinder is drivingly connected to the rotating motor through the piston rod.

[0011] Preferably, a transmission rod is arranged at the output end of the rotating motor, a clamp is fixedly installed at one end of the transmission rod, the rotating motor is drivingly connected to the clamp through the transmission rod, first electric telescopic rods are installed on both sides of the clamp, and clamping jaws are installed at the telescopic ends of the first electric telescopic rods.

[0012] Preferably, an installation table is fixedly installed above the sandblasting cylinder, and an access passage is arranged between the installation table and the sandblasting cylinder.

[0013] Preferably, a sandblasting receiving trough is fixedly installed below the sandblasting cylinder, and a switch cover is movably installed on the outer wall of the sandblasting receiving trough through a hinge.

[0014] Preferably, a compressor is fixedly installed on one side of the sandblasting gun, an abrasive storage tank is fixedly installed below the compressor, and both the compressor and the abrasive storage tank are connected to the sandblasting gun through connecting pipes.

[0015] Preferably, a slot is arranged at the middle position of the mounting rod socket, and a pressure sensing sheet is installed inside the slot.

[0016] Preferably, alarm bells are fixedly installed on both sides of the outer wall of the upper surface of the mounting rod socket, and the input end of the alarm bell is electrically connected to the output end of the pressure sensing sheet.

[0017] Preferably, a method for using a precision metal part production device includes the following steps:

[0018] Step 1: Extend the screw into the screw hole of the combined mounting rod for fixation, so that a plurality of control mechanisms are fixed on the outer wall of the combined mounting rod, a spacing space is reserved between each control mechanism, move the metal part housing to the control mechanism, the control mechanism controls a plurality of second electric telescopic rods to extend, so that the electromagnets touch the inner wall of the metal part housing, and use the characteristic that the electromagnets generate magnetism when energized to adsorb and fix the metal part housing at the control mechanism;

[0019] Step 2: Drive the electric cylinder to move above the combined mounting rod by using the lead screw linear module. The electric cylinder drives the piston rod to move up and down, so as to adjust the distance between the fixture and the combined mounting rod. At the fixture, the first electric telescopic rod drives the jaws to perform telescopic operations, and the distance between the two jaws is adjusted through the telescopic operations, so that the combined mounting rod below can be clamped and fixed by adjusting the distance. After clamping and fixing, the piston rod moves upward, so that the combined mounting rod is disengaged from the mounting rod socket. Then, use the lead screw linear module to drive the combined mounting rod to move above the access channel, and the piston rod descends, so that the combined mounting rod enters the sandblasting cylinder;

[0020] Step 3: A plurality of sandblasting guns are annularly distributed inside the sandblasting cylinder. The sandblasting guns and the sandblasting nozzles use compressed gas to eject the abrasive onto the outer wall of the metal part housing. The rotating motor drives the transmission rod to rotate the fixture and the combined mounting rod below, so that the outer wall of the metal part housing is sandblasted comprehensively. After sandblasting, the piston rod drives the combined mounting rod to move upward out of the sandblasting cylinder, and use the lead screw linear module to move it onto the mounting rod socket, and insert the combined mounting rod into the slot by moving downward. The pressure sensing sheet detects the pressure change and feeds back the signal to the ringing alarm, so that the ringing alarm rings to give an alarm, which has the effect of notifying the user to remove the metal part housing above. During the taking process, the electromagnet is powered off and demagnetized, and the second electric telescopic rod retracts, which is convenient for the user to remove the metal part housing;

[0021] Step 4: The abrasive generated during the sandblasting process will fall into the sandblasting material receiving groove for collection, and then the internal sandblasting material receiving groove can be taken and cleaned by opening the switch cover.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In the present invention, the screw is extended into the screw hole of the combined mounting rod for fixation, so that a plurality of control mechanisms are fixed on the outer wall of the combined mounting rod, and an interval space is reserved between each control mechanism. The metal part housing is moved to the control mechanism, and the control mechanism controls a plurality of second electric telescopic rods to extend, so that the electromagnet touches the inner wall of the metal part housing. The metal part housing is adsorbed and fixed at the control mechanism by using the characteristic that the electromagnet generates magnetism when powered on. The above structure can achieve the fixation effect of the metal part housing, and can fix a plurality of metal part housings on the combined mounting rod, which is convenient for sandblasting a plurality of metal part housings at one time.

[0024] 2. The lead screw linear module is used to drive the electric cylinder to move above the combined mounting rod. The electric cylinder drives the piston rod to move up and down, so that the distance between the fixture and the combined mounting rod is adjusted. At the fixture, the first electric telescopic rod drives the jaws to perform telescopic operations, and the distance between the two jaws is adjusted through the telescopic operations, so that the combined mounting rod below can be clamped and fixed by adjusting the distance. After clamping and fixing, the piston rod moves upward, so that the combined mounting rod is disengaged from the mounting rod socket. The lead screw linear module is used again to drive the combined mounting rod to move above the access channel, and the piston rod descends, so that the combined mounting rod enters the sandblasting cylinder. The above structure can move the metal part during the sandblasting process, which is convenient for use in the production and processing process.

[0025] 3. A plurality of sandblasting guns are annularly distributed inside the sandblasting cylinder. The sandblasting guns and the sandblasting nozzles use compressed gas to eject the abrasive onto the outer wall of the metal part housing. The rotating motor is used to drive the transmission rod to rotate the fixture and the combined mounting rod below, so that the outer wall of the metal part housing is sandblasted comprehensively. After sandblasting, the piston rod drives the combined mounting rod to move upward out of the sandblasting cylinder, and is moved to the mounting rod socket by the lead screw linear module, and the combined mounting rod is inserted into the slot by moving downward. The pressure sensing sheet detects the pressure change and feeds back the signal to the ringing alarm, so that the ringing alarm rings to give an alarm, which has the effect of notifying the user to remove the metal part housing above. During the taking process, the electromagnet is powered off and demagnetized, and the second electric telescopic rod retracts, which is convenient for the user to remove the metal part housing. The above structure can comprehensively sandblast a plurality of metal part housings by rotation, so as to improve the sandblasting efficiency, and after sandblasting, it can also remind the user to know, which is convenient for the user to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall structural schematic diagram of the present invention;

[0027] Figure 2 is the partial structural schematic diagram of the fixture of the present invention;

[0028] Figure 3 is the partial structural schematic diagram of the combined mounting rod of the present invention;

[0029] Figure 4 is the partial structural schematic diagram of the sandblasting cylinder of the present invention;

[0030] Figure 5 is the partial structural schematic diagram of the mounting rod socket of the present invention;

[0031] In the figure: 1. Sandblasting box; 2. Support frame; 3. Ball screw linear module; 4. Electric cylinder; 5. Piston rod; 6. Rotating motor; 7. Transmission rod; 8. Fixture; 9. First electric telescopic rod; 10. Claw; 11. Combined mounting rod; 12. Screw hole; 13. Control mechanism; 14. Screw; 15. Second electric telescopic rod; 16. Electromagnet; 17. Metal part housing; 18. Installation table; 19. Inlet and outlet channel; 20. Sandblasting cylinder; 21. Sandblasting gun; 22. Abrasive storage tank; 23. Compressor; 24. Sandblasting nozzle; 25. Connecting pipe; 26. Sandblasting material receiving tank; 27. Switch cover; 28. Mounting rod socket; 29. Slot; 30. Pressure sensing sheet; 31. Ringing alarm. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] Please refer to Figures 1-5 , an embodiment provided by the present invention: A precision metal part production device includes a sandblasting box 1, and mounting rod sockets 28 are fixedly installed on both sides above the sandblasting box 1;

[0034] It further includes:

[0035] A combined mounting rod 11, which is installed above the mounting rod socket 28. A plurality of screw holes 12 are provided on the outer wall of the combined mounting rod 11. A screw 14 is fixedly installed inside the screw hole 12. One end of the screw 14 is fixedly installed with a control mechanism 13. A plurality of annularly distributed second electric telescopic rods 15 are fixedly installed on the outer wall of the control mechanism 13. The telescopic end of the second electric telescopic rod 15 is fixedly installed with an arc-shaped electromagnet 16. And the control ends of the second electric telescopic rod 15 and the electromagnet 16 are both electrically connected to the output end of the control mechanism 13. A metal part housing 17 is installed on the outer wall of the electromagnet 16, and the metal part housing 17 is magnetically fixed to the electromagnet 16;

[0036] A sandblasting cylinder 20, which is fixedly installed at the middle position inside the sandblasting box 1. A plurality of annularly distributed sandblasting guns 21 are fixedly installed on the outer wall of the sandblasting cylinder 20. One end of the sandblasting gun 21 is fixedly installed with a sandblasting nozzle 24, and the sandblasting nozzle 24 extends into the sandblasting cylinder 20;

[0037] The screw rod 14 is extended into the screw hole 12 of the combined mounting rod 11 for fixing, so that the multiple control mechanisms 13 are fixed on the outer wall of the combined mounting rod 11, and a spacing space is reserved between each control mechanism 13. The metal part shell 17 is moved to the control mechanism 13, and the control mechanism 13 controls the multiple second electric telescopic rods 15 to extend, so that the electromagnet 16 touches the inner wall of the metal part shell 17, and the metal part shell 17 is adsorbed and fixed to the control mechanism 13 by utilizing the magnetic property generated by the electromagnet 16 when it is energized. The above structure can achieve the fixing effect of the metal part shell 17, and can fix multiple metal part shells 17 on the combined mounting rod 11, so as to facilitate the sandblasting operation of multiple metal part shells 17 at one time.

[0038] See also Figure 1 A support frame 2 is fixedly installed above the sandblasting box 1, a screw linear module 3 is fixedly installed above the support frame 2, an electric cylinder 4 is installed below the screw linear module 3, and the screw linear module 3 is slidably connected to the electric cylinder 4 through a slider, and the screw linear module 3 is used to drive the lower components to move.

[0039] See also Figure 1 , Figure 2 The electric cylinder 4 includes a piston rod 5, a rotating motor 6 is fixedly installed at the lower end of the piston rod 5, and the electric cylinder 4 is connected to the rotating motor 6 through the piston rod 5. The electric cylinder 4 is used to drive the piston rod 5 to move telescopically, so that the components below can follow the piston rod 5 to be driven, thereby achieving the effect of adjusting the height.

[0040] See also Figure 1 , Figure 2 A transmission rod 7 is arranged at the output end of the rotating motor 6, a clamp 8 is fixedly mounted at one end of the transmission rod 7, and the rotating motor 6 is connected to the clamp 8 through the transmission rod 7. First electric telescopic rods 9 are mounted on both sides of the clamp 8, and a clamp 10 is mounted on the telescopic end of the first electric telescopic rod 9. The rotating motor 6 is used to drive the transmission rod 7 and the clamp 8 to rotate, so that the combined mounting rod 11 can be driven, thereby facilitating the comprehensive sandblasting operation of the metal part shell 17 during the sandblasting process. The first electric telescopic rod 9 can facilitate the adjustment of the spacing between the clamps 10.

[0041] See also Figure 1 A mounting platform 18 is fixedly installed above the sandblasting cylinder 20, and an inlet and outlet passage 19 is provided between the mounting platform 18 and the sandblasting cylinder 20. The inlet and outlet passage 19 is used to connect the sandblasting cylinder 20 and allow the combined mounting rod 11 to be lifted in and out.

[0042] See also Figure 1 , Figure 4, a sandblasting material receiving trough 26 is fixedly installed below the sandblasting cylinder 20. A switch cover 27 is movably installed on the outer wall of the sandblasting material receiving trough 26 through a hinge. The sandblasting material receiving trough 26 is used to receive and collect the falling materials generated during the sandblasting process, and the switch cover 27 facilitates the user to clean and take out the internal falling materials.

[0043] Please refer to Figure 1 , a compressor 23 is fixedly installed on one side of the sandblasting gun 21. An abrasive storage tank 22 is fixedly installed below the compressor 23. Both the compressor 23 and the abrasive storage tank 22 are connected to the sandblasting gun 21 through a connecting pipe 25. The compressor 23 is used to compress gas, and the gas is used to push the abrasive to be ejected from the sandblasting nozzle 24. The abrasive storage tank 22 is used to store the sandblasting abrasive, and the connecting pipe 25 is used for connection and transportation.

[0044] Please refer to Figure 1 、 Figure 5 , a slot 29 is provided at the middle position of the mounting rod socket 28. A pressure sensing sheet 30 is installed inside the slot 29. The slot 29 is used to place and fix the combined mounting rod 11, and the pressure sensing sheet 30 is used to sense whether the combined mounting rod 11 is inserted.

[0045] Please refer to Figure 1 、 Figure 5 , a ringing alarm 31 is fixedly installed on both sides of the outer wall of the upper surface of the mounting rod socket 28. The input end of the ringing alarm 31 is electrically connected to the output end of the pressure sensing sheet 30. After the combined mounting rod 11 is inserted, the pressure sensing sheet 30 will convert the pressure signal into an electrical signal and transmit it to the ringing alarm 31 for ringing, which plays the effect of reminding the user to know and replace.

[0046] Please refer to Figures 1-5 , a usage method of a precision metal part production device includes the following steps:

[0047] Step 1: Extend the screw 14 into the screw hole 12 of the combined mounting rod 11 for fixation, so that a plurality of control mechanisms 13 are fixed on the outer wall of the combined mounting rod 11. An interval space is reserved between each control mechanism 13. Move the metal part housing 17 to the control mechanism 13. The control mechanism 13 controls a plurality of second electric telescopic rods 15 to extend, so that the electromagnet 16 touches the inner wall of the metal part housing 17, and the metal part housing 17 is adsorbed and fixed at the control mechanism 13 by using the magnetic property generated by the electromagnet 16 when it is energized;

[0048] Step 2: Drive the electric cylinder 4 to move above the combined mounting rod 11 by using the lead screw linear module 3. The electric cylinder 4 drives the piston rod 5 to move up and down, so as to adjust the distance between the fixture 8 and the combined mounting rod 11. At the fixture 8, the first electric telescopic rod 9 drives the jaws 10 to perform telescopic operations, and the distance between the two jaws 10 is adjusted through the telescopic operations, so that the combined mounting rod 11 below can be clamped and fixed by adjusting the distance. After clamping and fixing, the piston rod 5 moves upward, so that the combined mounting rod 11 is disengaged from the mounting rod socket 28. Then, use the lead screw linear module 3 to drive the combined mounting rod 11 to move above the access channel 19, and the piston rod 5 descends, so that the combined mounting rod 11 enters the sandblasting cylinder 20;

[0049] Step 3: A plurality of sandblasting guns 21 are annularly distributed inside the sandblasting cylinder 20. The sandblasting guns 21 and the sandblasting nozzles 24 use compressed gas to eject abrasives onto the outer wall of the metal part housing 17. The rotation motor 6 drives the transmission rod 7 to rotate the fixture 8 and the combined mounting rod 11 below, so that the outer wall of the metal part housing 17 is fully sandblasted. After sandblasting, the piston rod 5 drives the combined mounting rod 11 to move upward out of the sandblasting cylinder 20, and use the lead screw linear module 3 to move to the mounting rod socket 28, and insert the combined mounting rod 11 into the slot 29 by moving downward. The pressure sensing piece 30 detects the pressure change and feeds back the signal to the ringing alarm 31, so that the ringing alarm 31 rings to give an alarm, which has the effect of notifying the user to remove the metal part housing 17 above. During the taking process, the electromagnet 16 is powered off and demagnetized, and the second electric telescopic rod 15 retracts, which is convenient for the user to remove the metal part housing 17;

[0050] Step 4: The abrasives generated during the sandblasting process will fall into the sandblasting material receiving groove 26 for collection, and then the internal sandblasting material receiving groove 26 can be taken and cleaned by opening the switch cover 27.

[0051] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A precision metal parts production device, comprising a sandblasting box (1), wherein mounting rod sockets (28) are fixedly mounted on both sides of the upper side of the sandblasting box (1); It is characterized in that: Also includes: A combined mounting rod (11) is mounted above the mounting rod socket (28); a plurality of screw holes (12) are arranged on the outer wall of the combined mounting rod (11); a screw rod (14) is fixedly mounted inside the screw hole (12); a control mechanism (13) is fixedly mounted on one end of the screw rod (14); a plurality of annularly distributed second electric telescopic rods (15) are fixedly mounted on the outer wall of the control mechanism (13); an arc-shaped electromagnet (16) is fixedly mounted on the telescopic end of the second electric telescopic rod (15); the control ends of the second electric telescopic rod (15) and the electromagnet (16) are both electrically connected to the output end of the control mechanism (13); a metal shell (17) is mounted on the outer wall of the electromagnet (16); and the metal shell (17) and the electromagnet (16) are fixed by magnetic attraction; A sandblasting barrel (20) is fixedly mounted at a middle position inside the sandblasting box (1); a plurality of annularly distributed sandblasting guns (21) are fixedly mounted on the outer wall of the sandblasting barrel (20); a sandblasting nozzle (24) is fixedly mounted at one end of the sandblasting gun (21), and the sandblasting nozzle (24) extends into the interior of the sandblasting barrel (20).

2. The precision metal part production device according to claim 1, characterized in that: A support frame (2) is fixedly installed above the sandblasting box (1), a lead screw linear module (3) is fixedly installed above the support frame (2), an electric cylinder (4) is installed below the lead screw linear module (3), and the lead screw linear module (3) is slidably connected to the electric cylinder (4) via a slider.

3. The precision metal part production device according to claim 2, characterized in that: The electric cylinder (4) comprises a piston rod (5), a rotary motor (6) is fixedly mounted on the lower end of the piston rod (5), and the electric cylinder (4) is transmission-connected to the rotary motor (6) via the piston rod (5).

4. The precision metal part production device according to claim 3, characterized in that: A transmission rod (7) is provided at the output end of the rotating motor (6), a clamp (8) is fixedly mounted on one end of the transmission rod (7), and the rotating motor (6) is transmission-connected to the clamp (8) via the transmission rod (7), first electric telescopic rods (9) are mounted on both sides of the clamp (8), and a clamping claw (10) is mounted on the telescopic end of the first electric telescopic rod (9).

5. The precision metal part production device according to claim 4, characterized in that: A mounting platform (18) is fixedly mounted above the sandblasting cylinder (20), and an inlet and outlet passage (19) is provided between the mounting platform (18) and the sandblasting cylinder (20).

6. The precision metal part production device according to claim 5, characterized in that: A sandblasting material receiving trough (26) is fixedly installed below the sandblasting cylinder (20), and a switch cover (27) is movably installed on the outer wall of the sandblasting material receiving trough (26) via a hinge.

7. The precision metal part production device according to claim 6, characterized in that: A compressor (23) is fixedly mounted on one side of the sandblasting gun (21), an abrasive storage tank (22) is fixedly mounted below the compressor (23), and the compressor (23) and the abrasive storage tank (22) are both connected to the sandblasting gun (21) via a connecting pipe (25).

8. A precision metal part production device according to claim 7, characterized in that: A slot (29) is provided at the middle position of the mounting rod socket (28), and a pressure sensing sheet (30) is installed inside the slot (29).

9. The precision metal part production device according to claim 8, characterized in that: On both sides of the outer wall of the upper surface of the mounting rod socket (28), a ringing alarm (31) is fixedly installed, and the input end of the ringing alarm (31) is electrically connected to the output end of the pressure sensing sheet (30).

10. A method of using a production device for precision metal parts, implemented based on the production device for precision metal parts described in claim 9, characterized in that, It includes the following steps: Step 1: Extend the screw rod (14) into the screw hole (12) of the combined mounting rod (11) for fixation, so that a plurality of control mechanisms (13) are fixed on the outer wall of the combined mounting rod (11). An interval space is reserved between each control mechanism (13). Move the metal part housing (17) to the control mechanism (13). The control mechanism (13) controls a plurality of second electric telescopic rods (15) to extend, so that the electromagnet (16) touches the inner wall of the metal part housing (17). Utilize the characteristic that the electromagnet (16) generates magnetism when electrified to adsorb and fix the metal part housing (17) at the control mechanism (13). Step 2: Use the lead screw linear module (3) to drive the electric cylinder (4) to move above the combined mounting rod (11). The electric cylinder (4) drives the piston rod (5) to move up and down, so that the distance between the clamp (8) and the combined mounting rod (11) is adjusted. At the clamp (8), the first electric telescopic rod (9) drives the jaws (10) to perform telescopic operations, and the distance between the two jaws (10) is adjusted through the telescopic operations, so that the combined mounting rod (11) below can be clamped and fixed by adjusting the distance. After clamping and fixing, the piston rod (5) moves upward, so that the combined mounting rod (11) is disengaged from the mounting rod socket (28). Then use the lead screw linear module (3) to drive the combined mounting rod (11) to move above the access channel (19). The piston rod (5) descends, so that the combined mounting rod (11) enters the sandblasting cylinder (20). Step 3: A plurality of sandblasting guns (21) are annularly distributed inside the sandblasting cylinder (20). The sandblasting guns (21) and the sandblasting nozzles (24) use compressed gas to spray abrasives onto the outer wall of the metal part housing (17). Use the rotating motor (6) to drive the transmission rod (7) to rotate the clamp (8) and the combined mounting rod (11) below, so that the outer wall of the metal part housing (17) is fully sandblasted. After sandblasting, the piston rod (5) drives the combined mounting rod (11) to move upward out of the sandblasting cylinder (20). Use the lead screw linear module (3) to move it onto the mounting rod socket (28). Insert the combined mounting rod (11) into the slot (29) by moving downward. The pressure sensing sheet (30) detects the pressure change and feeds back the signal to the ringing alarm (31), so that the ringing alarm (31) rings for alarm, achieving the effect of notifying the user to remove the upper metal part housing (17). During the taking process, the electromagnet (16) is powered off and demagnetized, and the second electric telescopic rod (15) retracts, facilitating the user to remove the metal part housing (17). Step 4: The abrasives generated during the sandblasting process will fall into the sandblasting material receiving groove (26) for collection. Subsequently, the inside of the sandblasting material receiving groove (26) can be taken and cleaned by opening the switch cover (27).

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