A sleeve type workpiece inner hole deburring device and a method for using the same

Abstract

This invention provides a deburring device for the inner hole of sleeve-type workpieces and its usage method. The device includes a base frame, with two sets of positioning components for fixing the sleeve workpieces on top of the base frame. A pair of support frames are also provided on the base frame, with a guide rod fixed between the support frames. A lead screw driven by a servo motor is rotatably mounted. Multiple movable plates slide on the guide rod and are screwed to the lead screw. A mounting base is provided above the movable plates, and a high-pressure blower is mounted on the mounting base. The outlet of the high-pressure blower is connected to one end of a support pipe. An air pumping component and a grinding component are associatedly mounted on the support pipe. A sand collecting device is provided above the mounting base via multiple support rods. The sand collecting device, support pipe, and grinding components are associatedly arranged. The deburring device for the inner hole of sleeve-type workpieces provided by this invention utilizes high-pressure airflow carrying sand to flush the inner wall of the sleeve workpiece, enabling thorough and rapid grinding of the inner wall while ensuring grinding quality.

Description

Technical Field

[0001] This invention relates to the field of deburring technology, specifically to a deburring device for the inner hole of sleeve-type workpieces and its usage method. Background Technology

[0002] After the inner hole of the sleeve workpiece is drilled, the hole wall may have some burrs. The appearance of burrs will have a significant impact on the surface quality of the hole wall. Therefore, after the inner hole is drilled, the hole wall needs to be deburred.

[0003] Existing methods for deburring the inner hole of sleeve workpieces include manual grinding, which is time-consuming, labor-intensive, and inefficient; and motor-driven brush rods that extend into the inner hole of the sleeve workpiece. The motor drives the brush rod to rotate, allowing the brushes on it to deburr the inner hole wall. In practice, the sleeve workpiece is first mounted on the fixture of the deburring equipment. Then, a translation device moves the brush rod, inserting it into the inner hole. The motor then drives the brush rod to rotate, achieving deburring. However, when the brush rod is long, its overall rigidity is low, and it is prone to swinging, affecting the deburring effect and making it susceptible to breakage. Furthermore, different brushes are often required to meet the needs of sleeve workpieces with different inner diameters, which is quite cumbersome.

[0004] Based on this, the present invention designs a deburring device for the inner hole of sleeve-type workpieces to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a deburring device for the inner hole of sleeve-type workpieces and its usage method. The specific solution is as follows:

[0006] A deburring device for the inner hole of a sleeve-type workpiece includes a base frame with multiple support legs at the bottom. Two sets of positioning components for fixing the sleeve workpiece are located above the base frame. A pair of support frames are also mounted on the base frame, with a guide rod fixed between the two support frames. A lead screw driven by a servo motor is rotatably mounted. Multiple movable plates slide on the guide rod and are screwed to the lead screw. A mounting base is located above the movable plates, and a high-pressure blower is mounted on the mounting base. The outlet of the high-pressure blower is connected to one end of a support pipe. An air pumping component and a grinding component are associatedly mounted on the support pipe. A sand collecting device is located above the mounting base via multiple support rods. The sand collecting device, support pipe, and grinding component are associatedly mounted. The servo motor, high-pressure blower, and controller mounted on the base frame are electrically connected.

[0007] Based on the above, the sand collection device includes a housing, which is divided by a partition into an upper exhaust zone and a lower sand collection zone. A cyclone separator is installed through the partition. A discharge port is provided at the bottom of the housing, and a solenoid valve two electrically connected to the controller is provided at the discharge port. A pull-out filter assembly is also provided in the exhaust zone, and an exhaust hole is provided at the top of the housing. The discharge port is connected to a sand inlet on a support pipe through an inclined pipe, and the sand inlet is close to the outlet of the high-pressure blower. The inlet of the cyclone separator is connected to the grinding assembly through a return hose.

[0008] Based on the above, the air-inflating assembly includes a cylinder made of metal, a piston plate slidably disposed within the cylinder, a piston rod slidably disposed within the support tube on the piston plate, a pressure sensor disposed on the piston plate, a tension spring disposed between the pressure sensor and the cylinder, multiple electromagnets disposed on the piston plate targeting the cylinder, an exhaust port disposed on the cylinder, the exhaust port being connected to one end of an air supply pipe, and the cylinder being connected to one end of a connecting rod; the grinding assembly includes a sealing assembly one and a sealing assembly two disposed at intervals, the sealing assembly one including a sealing plate one and a sealing plate two disposed at intervals, an airbag one disposed between the sealing plate one and the sealing plate two, forming a cavity one between the sealing plate one, the sealing plate two and the airbag one, an air inlet connector and an air outlet connector passing through the sealing plate one and the sealing plate two, and an inflation port communicating with the cavity one disposed on the sealing plate two, the inflation port being connected to the other end of the air supply pipe; the sealing assembly two includes a sealing plate three and a sealing plate four disposed at intervals via multiple positioning rods, the sealing plate three and four... 3. An airbag 2 is provided between the sealing plates 3 and 4. A cavity 2 is provided between the sealing plates 3, 4, and the airbag 2. The cavity 1 and cavity 2 are connected by multiple connecting pipes. A connecting cylinder is also provided between the sealing components 1 and 2. Multiple T-shaped shells are evenly distributed around the connecting cylinder. Each T-shaped shell includes an exhaust shell 1 that slides through the connecting cylinder and is open at both ends, and an exhaust shell 2 that is perpendicular to the exhaust shell 1. The exhaust shell 1 and exhaust shell 2 are connected, and the exhaust shell 2 has multiple spray ports targeting the inner wall of the sleeve workpiece. An elastic push rod is provided between the exhaust shell 2 and the connecting cylinder. A wedge block is also provided on the upper side wall of the T-shaped shell away from the sealing component 1. The air inlet connector corresponds to the inside of the connecting cylinder. The air inlet connector is connected to the sand outlet provided on the side wall of the support pipe through a delivery hose. A solenoid valve 1 is provided at the sand outlet. The air outlet connector corresponds to the outside of the connecting cylinder. The air outlet connector is connected to the return hose. The pressure sensor, electromagnet, and solenoid valve 1 are all electrically connected to the controller.

[0009] Based on the above, there are multiple exhaust ports and inflation ports, and the corresponding exhaust ports and inflation ports are connected through the air supply pipe.

[0010] Based on the above, the connecting cylinder is also provided with a knob adjuster for adjusting the pressure alarm value of the pressure sensor. The knob adjuster has a driven gear on its rotating rod, and one of the T-shaped housings has a rack for the driven gear. The knob adjuster is electrically connected to the controller.

[0011] Based on the above, the positioning component includes a base plate located above the base frame. The bottom of the base plate is provided with multiple guide rods that slide through the base frame. A lead screw is also threaded through the base frame. The top end of the lead screw is connected to the base plate via a rotary joint. The base plate is also provided with a placement seat for the sleeve workpiece. The placement seat is provided with a V-groove for the sleeve workpiece. The base plate is also provided with a support plate. The top end of the support plate is provided with a horizontal plate. The horizontal plate is provided with an electric push rod electrically connected to the controller. The telescopic end of the electric push rod is provided with a pressure plate. The bottom of the pressure plate is provided with a rubber sheet.

[0012] Based on the above, the mounting base is provided with a bracket for the support tube.

[0013] The deburring equipment for the inner hole of sleeve-type workpieces described above includes the following steps:

[0014] Step 1: First, adjust the mounting base to the appropriate position by starting the servo motor. Then, place the sleeve workpiece to be deburred on the placement base. Adjust the height of the placement base by rotating the lead screw, so that the grinding component enters the inside of one end of the sleeve component. Then, control the extension end of the electric push rod to extend and press the sleeve workpiece tightly by controlling the controller.

[0015] Step 2: Next, the operator sets the number of servo motor starts, the rotation amplitude of each start, and the time interval between two rotations on the controller according to the length of the sleeve workpiece and the width between sealing component one and sealing component two in the grinding assembly.

[0016] Step 3: Then, start the grinding program through the controller. The controller closes solenoid valve 1 and solenoid valve 2, and starts the high-pressure blower. Under the action of the airflow blown by the high-pressure blower, the piston rod pushes the piston plate to move, and then the pressure sensor on the piston plate squeezes the tension spring. At the same time, the gas in the cylinder is discharged from the exhaust port and enters the cavity 1 and cavity 2 in the grinding assembly through the air supply pipe, which causes airbag 1 and airbag 2 to bulge and fit against the inner wall of the sleeve workpiece, thereby forming a sealed cavity between airbag 1, airbag 2 and the inner wall of the sleeve workpiece.

[0017] Step 4: When the pressure value measured by the pressure sensor reaches the alarm value set by the controller, the controller energizes the electromagnet, causing the electromagnet to be tightly attracted to the inner wall of the sleeve workpiece. Then, the controller opens solenoid valve one and solenoid valve two. The sand used to polish the inner wall of the sleeve workpiece in housing one is discharged from the discharge port and enters the support pipe through the inclined pipe. Then, the sand is discharged from the sand outlet on the support pipe along with the high-pressure airflow. Then, the high-pressure airflow carries the sand through the delivery hose and air inlet connector into the connecting cylinder, and then sprays it out from the spray port on the T-shaped shell to polish the inner wall of the sleeve workpiece.

[0018] Step 5: Next, the high-pressure airflow in the sealed cavity, carrying sand, is discharged from the air outlet joint, and then enters the cyclone separator through the return hose. Then the airflow and sand are separated. The airflow is discharged from the exhaust port, while the sand is discharged from the discharge port and enters the support tube again through the inclined tube. After this continues for the set time, the controller closes solenoid valve one and solenoid valve two. After the sand flows back into the sand collection device, the controller closes the electromagnet. Under the action of the tension spring, the piston plate is reset, and at the same time, airbag one and airbag two are disengaged from the inner wall of the sleeve workpiece.

[0019] Step 6: At this point, the servo motor rotates to a certain extent and continues to repeat steps 3-5 until the inner wall of the sleeve workpiece is polished.

[0020] This invention has outstanding substantive features and significant progress compared to the prior art. Specifically, this invention has the following advantages:

[0021] The deburring equipment for the inner hole of sleeve-type workpieces provided by the present invention utilizes high-pressure airflow to carry sand to scour the inner wall of the sleeve workpiece. The structural design not only allows for thorough and rapid grinding of the inner wall of the sleeve workpiece while ensuring grinding quality, but also makes it suitable for sleeve workpieces with different inner diameters. Furthermore, the equipment is time-saving, labor-saving, and highly automated, with an ingenious and practical structural design. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 yes Figure 1 Schematic diagram of the structure at point A in the middle.

[0024] Figure 3 yes Figure 1 Schematic diagram of the structure at point B.

[0025] Figure 4 yes Figure 1 Schematic diagram of the structure at point C.

[0026] Figure 5 This is a schematic diagram of the assembly structure of some structural components in this invention.

[0027] Figure 6 This is a schematic diagram of the assembly structure of some structural components in this invention.

[0028] In the diagram: 1. Base frame; 2. Support leg; 3. Base plate; 4. Guide rod; 5. Lead screw; 6. Placement seat; 7. Support frame; 8. Guide rod; 9. Lead screw; 10. Servo motor; 11. Mounting seat; 12. Moving plate; 13. High-pressure blower; 14. Support pipe; 14-1. Sand inlet; 14-2. Sand outlet; 15. Solenoid valve one; 16. Bracket; 17. Support rod; 18. Sand collection device; 18-1. Shell; 18-2. Discharge port; 18-3. Exhaust port; 18-4. Partition plate; 18-5. Cyclone separator; 18-6. Filter assembly; 18-7. Solenoid valve two; 19. Air pumping assembly; 19-1. Cylinder; 19-2. Piston plate; 19-3. Electromagnet; 19-4. Piston rod; 19-5. Pressure sensor; 19-6. Tension spring; 19-7. Exhaust port; 19 -8. Air supply pipe; 19-9. Connecting rod; 20. Grinding assembly; 20-1. Sealing plate one; 20-2. Sealing plate two; 20-3. Air inlet connector; 20-4. Inflation port; 20-5. Airbag one; 20-6. Sealing plate three; 20-7. Sealing plate four; 20-8. Airbag two; 20-9. Positioning rod; 20-10. Connecting pipe; 20-11. Connecting cylinder; 20-12. T-type 20-13. Shell; 20-14. Elastic push rod; 20-15. Injection nozzle; 20-16. Wedge block; 20-17. Knob adjuster; 20-18. Driven gear; 20-19. Rack; 20-19. Air outlet connector; 21. Support plate; 22. Horizontal plate; 23. Electric push rod; 24. Pressure plate; 25. Rubber sheet; 26. Sleeve workpiece; 27. Return hose; 28. Conveying hose; 29. ​​Controller. Detailed Implementation

[0029] The technical solution of the present invention will be further described in detail below through specific embodiments. Example

[0030] like Figure 1-6As shown, the present invention provides a deburring device for the inner hole of a sleeve-type workpiece, including a base frame 1. Multiple support legs 2 are provided at the bottom of the base frame 1. Two sets of positioning components for fixing the sleeve workpiece 26 are provided above the base frame 1. A pair of support frames 7 are also provided on the base frame 1. A guide rod 8 is fixed between the pair of support frames 7. A lead screw 9 driven by a servo motor 10 is rotatably mounted. Multiple movable plates 12 are slidably mounted on the guide rod 8 and are screwed to the lead screw 9. A mounting base 11 is provided above the movable plates 12. A high-pressure blower 13 is mounted on the mounting base 11. The air outlet of the high-pressure blower 13 is connected to one end of a support pipe 14. An air pumping component 19 and a grinding component 20 are associatedly mounted on the support pipe 14. A sand collecting device 18 is provided above the mounting base 11 via multiple support rods 17. The sand collecting device 18, the support pipe 14, and the grinding component 20 are associatedly mounted. The servo motor 10, the high-pressure blower 13, and a controller 29 mounted on the base frame 1 are electrically connected.

[0031] The aforementioned sand collection device 18 includes a housing 18-1, which is divided by a partition 18-4 into an upper exhaust zone and a lower sand collection zone. A cyclone separator 18-5 is installed through the partition 18-4. A discharge port 18-2 is provided at the bottom of the housing 18-1. A solenoid valve 18-7 electrically connected to the controller 29 is provided at the discharge port 18-2. A pull-out filter assembly 18-6 is also provided in the exhaust zone. An exhaust hole 18-3 is provided at the top of the housing 18-1. The discharge port 18-2 is connected to a sand inlet 14-1 opened on the support pipe 14 through an inclined pipe. The sand inlet 14-1 is close to the outlet of the high-pressure blower 13. The inlet of the cyclone separator 18-5 is connected to the grinding assembly 20 through a return hose 27.

[0032] The aforementioned air-inflating assembly 19 includes a metal cylinder 19-1, a piston plate 19-2 slidably disposed within the cylinder 19-1, a piston rod 19-4 slidably disposed on the piston plate 19-2 within the support tube 14, a pressure sensor 19-5 disposed on the piston plate 19-2, a tension spring 19-6 disposed between the pressure sensor 19-5 and the cylinder 19-1, a plurality of electromagnets 19-3 disposed on the piston plate 19-2 targeting the cylinder 19-1, an exhaust port 19-7 disposed on the cylinder 19-1, the exhaust port 19-7 being connected to one end of an air supply pipe 19-8, and the cylinder 19-1 also being connected to one end of a connecting rod 19-9; the grinding assembly 20 includes spaced-apart sealing assemblies. I. Sealing Component II, wherein the sealing component I includes a sealing plate 20-1 and a sealing plate 20-2 spaced apart, an airbag 20-5 is provided between the sealing plate 20-1 and the sealing plate 20-2, and a cavity I is formed between the sealing plate 20-1, the sealing plate 20-2 and the airbag 20-5, an air inlet connector 20-3 and an air outlet connector 20-19 are also provided through the sealing plate 20-1 and the sealing plate 20-2, and an inflation port 20-4 communicating with the cavity I is also provided on the sealing plate 20-2, the inflation port 20-4 being connected to the other end of the air supply pipe 19-8; the sealing component II includes a sealing plate 20-6 and a sealing plate 20-9 spaced apart by multiple positioning rods 20-9. -7, an airbag 20-8 is provided between the sealing plate three 20-6 and the sealing plate four 20-7, and a cavity two is provided between the sealing plate three 20-6, the sealing plate four 20-7 and the airbag two 20-8. The cavity one and the cavity two are connected by multiple connecting pipes 20-10. A connecting cylinder 20-11 is also provided between the sealing component one and the sealing component two. Multiple sets of T-shaped shells 20-12 are evenly distributed along the circumference of the connecting cylinder 20-11. The T-shaped shell 20-12 includes an exhaust shell one that slides through the connecting cylinder 20-11 and is open at both ends, and an exhaust shell two that is perpendicular to the exhaust shell one. The exhaust shell one and the exhaust shell two are connected, and the exhaust shell two is provided with multiple sprays targeting the inner wall of the sleeve workpiece 26. An elastic push rod 20-13 is provided between the injection port 20-14, the exhaust shell 2, and the connecting cylinder 20-11. A wedge block 20-15 is also provided on the upper side wall of the T-shaped shell 20-12 away from the sealing component 1. The air inlet connector 20-3 corresponds to the inside of the connecting cylinder 20-11. The air inlet connector 20-3 is connected to the sand outlet 14-2 provided on the side wall of the support pipe 14 through the delivery hose 28. A solenoid valve 15 is provided at the sand outlet 14-2. The air outlet connector 20-19 corresponds to the outside of the connecting cylinder 20-11. The air outlet connector 20-19 is connected to the return hose 27. The pressure sensor 19-5, the electromagnet 19-3, and the solenoid valve 15 are all electrically connected to the controller 29.

[0033] The above-mentioned exhaust port 19-7 and air inlet 20-4 include multiple ones, and the corresponding exhaust ports 19-7 and air inlets 20-4 are connected by the air supply pipe 19-8.

[0034] It should be noted that both airbag 1 (20-5) and airbag 2 (20-8) are made of elastic rubber. Considering that the inflated diameters of airbag 1 (20-5) and airbag 2 (20-8) are different when grinding sleeve workpieces 26 with different inner diameters, the amount of gas that needs to be injected into cavity 1 and cavity 2 is different, which means that the degree of compression on tension spring 19-6 is also different. To facilitate indirect monitoring of airbag 1 (20-5) and airbag 2 (20-8) when grinding sleeve workpieces 26 with different inner diameters, Whether the second airbag 20-8 fits snugly against the inner wall of the sleeve workpiece 26 is determined by a rotary regulator 20-16 on the connecting cylinder 20-11 for adjusting the pressure alarm value of the pressure sensor 19-5. The rotary regulator 20-16 has a driven gear 20-17 on its rotating rod, and one of the T-shaped housings 20-12 has a rack 20-18 corresponding to the driven gear 20-17. The rotary regulator 20-16 is electrically connected to the controller 29. It should be noted that excessive pressure inside the first airbag 20-5 and the second airbag 20-8 can lead to an excessively wide fit against the inner wall of the sleeve workpiece 26, which can negatively impact work efficiency. Therefore, for sleeve workpieces 26 with different inner diameters, appropriate pressure alarm values ​​are needed to ensure that the inflated degree of the first airbag 20-5 and the second airbag 20-8 is appropriate.

[0035] The aforementioned positioning assembly includes a base plate 3 located above the base frame 1. The bottom of the base plate 3 is provided with multiple guide rods 4 that slide through the base frame 1. A lead screw 5 is also threaded through the base frame 1. The top end of the lead screw 5 is connected to the base plate 3 via a rotary joint. The base plate 3 is also provided with a placement seat 6 for the sleeve workpiece 26. The placement seat 6 is provided with a V-groove for the sleeve workpiece 26. The base plate 3 is also provided with a support plate 21. The top end of the support plate 21 is provided with a horizontal plate 22. The horizontal plate 22 is provided with an electric push rod 23 that is electrically connected to the controller 29. The telescopic end of the electric push rod 23 is provided with a pressure plate 24. The bottom of the pressure plate 24 is provided with a rubber sheet 25.

[0036] To facilitate stable support of the support tube 14, the mounting base 11 is provided with a bracket 16 for the support tube 14.

[0037] The deburring equipment for the inner hole of sleeve-type workpieces described above includes the following steps:

[0038] Step 1: First, adjust the mounting base 11 to a suitable position by starting the servo motor 10. Then, place the sleeve workpiece 26 to be deburred on the placement base 6. Adjust the height of the placement base 6 by rotating the lead screw 5, so that the grinding assembly 20 enters one end of the sleeve assembly. Then, control the extension end of the electric push rod 23 to extend and press the sleeve workpiece 26 tightly by controlling the controller 29.

[0039] Step 2: Next, the operator sets the number of times the servo motor 10 is started, the rotation amplitude of each start, and the time interval between two rotations on the controller 29 according to the length of the sleeve workpiece 26 and the width between sealing component one and sealing component two in the grinding assembly 20.

[0040] Step 3: Then, the grinding program is started by controller 29. Controller 29 closes solenoid valve 15 and solenoid valve 28-7, and starts high-pressure blower 13. Under the action of airflow blown by high-pressure blower 13, piston rod 19-4 pushes piston plate 19-2 to move. Then, pressure sensor 19-5 on piston plate 19-2 squeezes tension spring 19-6. At the same time, gas in cylinder 19-1 is discharged from exhaust port 19-7 and enters cavity 1 and cavity 2 in grinding assembly 20 through air supply pipe 19-8. This causes airbag 1 20-5 and airbag 2 20-8 to bulge and fit against the inner wall of sleeve workpiece 26, thereby forming a sealed cavity between airbag 1 20-5, airbag 2 20-8 and the inner wall of sleeve workpiece 26.

[0041] Step 4: When the pressure value measured by the pressure sensor 19-5 reaches the alarm value set by the controller 29, the controller 29 energizes the electromagnet 19-3, causing the electromagnet 19-3 to be tightly attracted to the inner wall of the sleeve workpiece 26. Then, the controller 29 opens the solenoid valve 15 and the solenoid valve 28-7. The sand used to polish the inner wall of the sleeve workpiece 26 in the housing 18-1 is discharged from the discharge port 18-2 and enters the support pipe 14 through the inclined pipe. Then, the sand is discharged from the sand outlet 14-2 on the support pipe 14 along with the high-pressure airflow. Then, the high-pressure airflow carries the sand through the conveying hose 28 and the air inlet connector 20-3 into the connecting cylinder 20-11, and then sprays it out from the spray port 20-14 on the T-shaped shell 20-12 to polish the inner wall of the sleeve workpiece 26.

[0042] Step 5: Next, the high-pressure airflow in the sealed cavity, carrying sand, is discharged from the air outlet 20-19, and then enters the cyclone separator 18-5 through the return hose 27. Then the airflow and sand are separated. The airflow is discharged from the exhaust port 18-3, while the sand is discharged from the discharge port 18-2 and enters the support pipe 14 again through the inclined pipe. After this continues for a set time, the controller 29 closes the solenoid valve 15 and the solenoid valve 28-7. After the sand flows back into the sand collection device 18, the controller 29 closes the electromagnet 19-3. Under the action of the tension spring 19-6, the piston plate 19-2 resets, and at the same time, the airbags 120-5 and 220-8 disengage from the inner wall of the sleeve workpiece 26.

[0043] Step 6: At this time, the servo motor 10 rotates to a certain extent and continues to repeat steps 3-5 until the inner wall of the sleeve workpiece 26 is polished.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A deburring device for the inner hole of a sleeve-type workpiece, characterized in that: Includes a base frame (1), the bottom of which is provided with multiple support legs (2), and two sets of positioning components for fixing the sleeve workpiece (26) are provided on the top of the base frame (1). A pair of support frames (7) are also provided on the base frame (1), and a guide rod (8) is fixed between the pair of support frames (7). A lead screw (9) driven by a servo motor (10) is rotatably provided. Multiple movable plates (12) are slidably provided on the guide rod (8), and the movable plates (12) are screwed to the lead screw (9). A mounting seat (11) is provided above the movable plates (12). A high-pressure blower (13) is provided on the mounting base (11). The outlet of the high-pressure blower (13) is connected to one end of the support pipe (14). An air pumping component (19) and a grinding component (20) are provided on the support pipe (14). A sand collecting device (18) is provided above the mounting base (11) through multiple support rods (17). The sand collecting device (18), the support pipe (14), and the grinding component (20) are provided in association. The servo motor (10), the high-pressure blower (13), and the controller (29) provided on the base frame (1) are electrically connected. The sand collection device (18) includes a housing (18-1), which is divided into an upper exhaust zone and a lower sand collection zone by a partition (18-4). A cyclone separator (18-5) is installed through the partition (18-4). A discharge port (18-2) is provided at the bottom of the housing (18-1). A solenoid valve (18-7) electrically connected to the controller (29) is provided at the discharge port (18-2). A pull-out filter assembly (18-6) is also provided in the exhaust zone. An exhaust hole (18-3) is provided at the top of the housing (18-1). The discharge port (18-2) is connected to the sand inlet (14-1) opened on the support pipe (14) through an inclined pipe. The sand inlet (14-1) is close to the outlet of the high-pressure blower (13). The inlet of the cyclone separator (18-5) is connected to the grinding assembly (20) through a return hose (27). The air pumping assembly (19) includes a metal cylinder (19-1), a piston plate (19-2) that slides inside the cylinder (19-1), a piston rod (19-4) that slides inside the support tube (14) on the piston plate (19-2), a pressure sensor (19-5) on the piston plate (19-2), a tension spring (19-6) between the pressure sensor (19-5) and the cylinder (19-1), a plurality of electromagnets (19-3) for the cylinder (19-1) on the piston plate (19-2), and an exhaust port (19-7) on the cylinder (19-1). The exhaust port (19-7) is connected to the air supply pipe. One end of (19-8) is connected, and the cylinder (19-1) is also connected to one end of the connecting rod (19-9); the grinding assembly (20) includes a sealing assembly one and a sealing assembly two arranged at intervals. The sealing assembly one includes a sealing plate one (20-1) and a sealing plate two (20-2) arranged at intervals. An airbag one (20-5) is provided between the sealing plate one (20-1) and the sealing plate two (20-2). A cavity one is formed between the sealing plate one (20-1), the sealing plate two (20-2) and the airbag one (20-5). An air inlet connector (20-3) and an air outlet connector (20-19) are also provided through the sealing plate one (20-1) and the sealing plate two (20-2). The sealing plate 2 (20-2) is also provided with an inflation port (20-4) communicating with cavity 1. The inflation port (20-4) is connected to the other end of the air supply pipe (19-8). The sealing assembly 2 includes a sealing plate 3 (20-6) and a sealing plate 4 (20-7) arranged at intervals by multiple positioning rods (20-9). An airbag 2 (20-8) is provided between the sealing plate 3 (20-6) and the sealing plate 4 (20-7). A cavity 2 is provided between the sealing plate 3 (20-6), the sealing plate 4 (20-7) and the airbag 2 (20-8). The cavity 1 and the cavity 2 are connected by multiple connecting pipes (20-10). The sealing assembly 1 A connecting cylinder (20-11) is also provided between the two sealing components. Multiple sets of T-shaped shells (20-12) are evenly distributed along the circumference of the connecting cylinder (20-11). The T-shaped shell (20-12) includes an exhaust shell one that slides through the connecting cylinder (20-11) and is open at both ends, and an exhaust shell two that is perpendicular to the exhaust shell one. The exhaust shell one and the exhaust shell two are connected, and the exhaust shell two is provided with multiple spray ports (20-14) targeting the inner wall of the sleeve workpiece (26). An elastic push rod (20-13) is provided between the exhaust shell two and the connecting cylinder (20-11). A wedge block (20-15) is also provided on the side wall of the T-shaped shell (20-12) away from the sealing component one.The air inlet connector (20-3) corresponds to the interior of the connecting cylinder (20-11). The air inlet connector (20-3) is connected to the sand outlet (14-2) located on the side wall of the support pipe (14) via the delivery hose (28). A solenoid valve (15) is provided at the sand outlet (14-2). The air outlet connector (20-19) corresponds to the exterior of the connecting cylinder (20-11). The air outlet connector (20-19) is connected to the return hose (27). The pressure sensor (19-5), the electromagnet (19-3), and the solenoid valve (15) are all electrically connected to the controller (29).

2. The deburring equipment for the inner hole of sleeve-type workpieces according to claim 1, characterized in that: The exhaust port (19-7) and the inflation port (20-4) each include multiple ones, and the corresponding exhaust ports (19-7) and inflation ports (20-4) are connected by the air supply pipe (19-8).

3. The deburring equipment for the inner hole of sleeve-type workpieces according to claim 2, characterized in that: The connecting cylinder (20-11) is also provided with a knob adjuster (20-16) for adjusting the pressure alarm value of the pressure sensor (19-5). The knob adjuster (20-16) has a driven gear (20-17) on its rotating rod. One of the T-shaped housings (20-12) has a rack (20-18) for the driven gear (20-17). The knob adjuster (20-16) is electrically connected to the controller (29).

4. The deburring equipment for the inner hole of sleeve-type workpieces according to claim 3, characterized in that: The positioning assembly includes a base plate (3) located above the base frame (1). The bottom of the base plate (3) is provided with multiple guide rods (4) that slide through the base frame (1). A lead screw (5) is also threaded through the base frame (1). The top end of the lead screw (5) is connected to the base plate (3) through a rotary joint. The base plate (3) is also provided with a placement seat (6) for the sleeve workpiece (26). The placement seat (6) is provided with a V-groove for the sleeve workpiece (26). The base plate (3) is also provided with a support plate (21). The top end of the support plate (21) is provided with a horizontal plate (22). The horizontal plate (22) is provided with an electric push rod (23) that is electrically connected to the controller (29). The telescopic end of the electric push rod (23) is provided with a pressure plate (24). The bottom of the pressure plate (24) is provided with a rubber sheet (25).

5. The deburring equipment for the inner hole of sleeve-type workpieces according to claim 1, characterized in that: The mounting base (11) is provided with a bracket (16) for the support tube (14).

6. The method of using the deburring equipment for the inner hole of sleeve-type workpieces according to claim 4, characterized in that... Includes the following steps: Step 1: First, adjust the mounting base (11) to a suitable position by starting the servo motor (10), then place the sleeve workpiece (26) to be deburred on the placement base (6), adjust the height of the placement base (6) by rotating the lead screw (5), and make the grinding assembly (20) enter the inside of one end of the sleeve assembly. Then, control the extension end of the electric push rod (23) to extend and press the sleeve workpiece (26) tightly by controlling the controller (29). Step 2: Next, the operator sets the number of times the servo motor (10) is started, the rotation amplitude of each start, and the time interval between two rotations on the controller (29) according to the length of the sleeve workpiece (26) and the width between sealing component one and sealing component two in the grinding assembly (20); Step 3: Then, start the grinding program through the controller (29). The controller (29) closes the solenoid valve one (15) and the solenoid valve two (18-7), and starts the high-pressure blower (13). Under the action of the airflow blown by the high-pressure blower (13), the piston rod (19-4) pushes the piston plate (19-2) to move, and then the pressure sensor (19-5) on the piston plate (19-2) squeezes the tension spring (19-6). At the same time, the gas in the cylinder (19-1) is discharged from the exhaust port (19-7) and enters the cavity one and cavity two in the grinding assembly (20) through the air supply pipe (19-8), so that the airbag one (20-5) and the airbag two (20-8) bulge and fit against the inner wall of the sleeve workpiece (26), thereby forming a sealed cavity between the airbag one (20-5), the airbag two (20-8) and the inner wall of the sleeve workpiece (26). Step 4: When the pressure value measured by the pressure sensor (19-5) reaches the alarm value set by the controller (29), the controller (29) energizes the electromagnet (19-3), so that the electromagnet (19-3) is tightly attracted to the inner wall of the sleeve workpiece (26). Then the controller (29) opens the first solenoid valve (15) and the second solenoid valve (18-7). The sand used to polish the inner wall of the sleeve workpiece (26) in the housing (18-1) is discharged from the discharge port (18-2) and enters the support pipe (14) through the inclined pipe. Then the sand is discharged from the sand outlet (14-2) on the support pipe (14) along with the high-pressure airflow. Then the high-pressure airflow carries the sand through the conveying hose (28) and the air inlet connector (20-3) into the connecting cylinder (20-11), and then sprays out from the spray port (20-14) on the T-shaped shell (20-12) to polish the inner wall of the sleeve workpiece (26). Step 5: Next, the high-pressure airflow in the sealed cavity, carrying sand, is discharged from the air outlet (20-19), and then enters the cyclone separator (18-5) through the return hose (27). Then the airflow and sand are separated. The airflow is discharged from the exhaust port (18-3), while the sand is discharged from the discharge port (18-2) and enters the support pipe (14) again through the inclined pipe. After the set time, the controller (29) closes the solenoid valve one (15) and the solenoid valve two (18-7). After the sand flows back into the sand collection device (18), the controller (29) closes the electromagnet (19-3). Under the action of the tension spring (19-6), the piston plate (19-2) is reset, and at the same time, the airbag one (20-5) and the airbag two (20-8) are separated from the inner wall of the sleeve workpiece (26). Step 6: At this time, the servo motor (10) rotates to a certain extent and continues to repeat steps 3-5 until the inner wall of the sleeve workpiece (26) is polished.

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