Deburring device for inner hole of mechanical workpiece

Abstract

The utility model discloses a deburring device for an inner hole of a mechanical workpiece, which relates to the technical field of mechanical workpiece processing equipment and comprises a base platform, a clamping and positioning mechanism is arranged on the rear side of the top of the base platform, and two left and right mirror image adjusting mechanisms are arranged on the front side of the clamping and positioning mechanism. The polishing and deburring mechanism is arranged on the top of the base platform, the clamping and positioning mechanism is located on the inner side of the polishing and deburring mechanism, the clamping and positioning mechanism comprises a clamping box, and the clamping box is fixedly installed on the rear side of the top of the base platform. According to the deburring device, through mutual cooperation of a clamping cylinder, a lifting threaded rod, a limiting sliding rod and a lower pressing plate which are included in the clamping and positioning mechanism and the adjusting mechanism, the deburring device can stably clamp the outer wall of a circular mechanical workpiece and can also press down and fix the outer wall of the circular mechanical workpiece, the stability of the workpiece in the polishing process is improved, and the polishing efficiency is improved. And the deburring device is better in applicability and stability.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical workpiece processing equipment, specifically to a deburring device for the inner hole of a mechanical workpiece. Background Technology

[0002] To meet actual production needs, it is often necessary to drill holes in mechanical workpieces. After drilling, many burrs will remain on the surface of the inner hole, which is detrimental to the normal use of the workpiece. Therefore, it is necessary to grind away these burrs. The existing technology has the following problems:

[0003] Chinese patent document CN206855184U discloses a deburring device for the inner hole of a mechanical workpiece, including a base plate. Two side plates are fixedly connected to the upper surface of the base plate, and the opposing surfaces of the two side plates are fixedly connected by a horizontal plate. A motor is disposed above the horizontal plate, and sliding rods are fixedly connected to both sides of the motor. The ends of the two sliding rods away from the motor are slidably connected to first grooves opened on the opposing surfaces of the two side plates. A first threaded post is fixedly connected to the output shaft of the motor. This deburring device for the inner hole of a mechanical workpiece allows the motor to rotate forward, driving the first threaded post to rotate and polishing the burrs on the surface of the inner hole of the workpiece. When the inner hole diameter of the workpiece changes, a second threaded cap is rotated via a connecting rod, causing the two abrasive rollers to move closer or further apart. This adapts to workpieces with various inner hole diameters, eliminating the need for other deburring devices and meeting the needs of actual production, thus providing convenience for workers.

[0004] In the aforementioned literature, when fixing the front end of the mechanical workpiece during burr grinding, it relies solely on the clamping plates at the output ends of the two electric push rods on the left and right sides for clamping. However, when the mechanical workpiece is circular, its outer wall has a certain curvature, which makes it difficult to ensure good stability during the grinding of its inner hole, and it is prone to slippage. In addition, the aforementioned literature mainly relies on abrasive cloth rollers to grind its inner hole, but grinding generates a large amount of debris that cannot be effectively collected and cleaned. It can only accumulate on the top of the base plate, and it needs to be cleaned every time it is processed to prevent it from affecting the placement of the workpiece, which is quite inconvenient. Utility Model Content

[0005] This invention provides a deburring device for the inner hole of a mechanical workpiece to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A deburring device for the inner hole of a mechanical workpiece includes a base platform. A clamping and positioning mechanism is provided on the rear top side of the base platform. Two left-right mirror adjustment mechanisms are provided on the front side of the clamping and positioning mechanism. A grinding and deburring mechanism is provided on the top of the base platform. The clamping and positioning mechanism is located inside the grinding and deburring mechanism. The clamping and positioning mechanism includes a clamping box, which is fixedly installed on the rear top side of the base platform. A clamping groove is opened on the front side of the clamping box. A servo motor is fixedly installed on the right side of the clamping box. The output shaft of the servo motor passes through the inner cavity of the clamping groove and is fixedly installed with a positive and negative threaded rod. The outer walls of the positive and negative threaded rods are respectively provided with opposite threaded walls on the left and right sides. A clamping moving plate is threadedly installed on the outer walls of both threaded walls.

[0008] Both adjustment mechanisms include adjustment boxes, which are respectively fixedly installed on the front side of two clamping moving plates. A lifting threaded rod is movably installed on the top of each of the two adjustment boxes, and a control knob is fixedly installed on the top of the lifting threaded rod. A lower pressure plate is threadedly installed on the outer wall of each of the two lifting threaded rods. A limit slide rod is fixedly installed on the top of each of the two adjustment boxes. The limit slide rod is located on one side of the lifting threaded rod. The lower pressure plate is slidably connected to the limit slide rod. A rubber pad is fixedly installed on the bottom side of the lower pressure plate away from the adjustment box.

[0009] A further improvement of the present invention is that: adjustment grooves are provided on the opposite surfaces of the two adjustment boxes, and positive and negative threaded rods are movably installed on the rear side of the two adjustment grooves. The front end of the positive and negative threaded rods extends through to the front side of the adjustment box and is fixedly installed with an adjustment knob.

[0010] A further improvement of the present invention is that: the outer walls of the positive and negative threaded rods are respectively provided with opposite threaded walls on the front and rear sides, and the outer walls of the two threaded walls are threaded with movable plates, and a clamping cylinder is fixedly installed on the side of the movable plate away from the adjusting groove.

[0011] A further improvement of this utility model is that: a collection groove is provided on the top of the base platform, a sliding rod is fixedly installed between the left and right sides of the inner wall of the collection groove, two placement rods are slidably installed on the outer wall of the sliding rod, a limiting movement groove is provided on the front side of the top of the base platform, the bottom of the two placement rods overlaps with the bottom of the inner side of the limiting movement groove, and the top of the two placement rods is on the same horizontal line as the top of the base platform.

[0012] A further improvement of the present invention is that: a pull-out hole is provided on the front side of the base platform, which extends to the inner cavity of the collection groove; a debris collection drawer is provided in the inner cavity of the collection groove; and the front end of the debris collection drawer extends through the pull-out hole to the front side of the base platform.

[0013] A further improvement of this utility model's technical solution is as follows: the grinding and deburring mechanism includes a portal frame, the bottom of the two vertical sections of the portal frame is fixedly connected to the top of the base platform, the clamping box is located between the two vertical sections of the portal frame, an electric push rod is fixedly installed on the top of the portal frame, the output end of the electric push rod extends through to the bottom of the horizontal section of the portal frame and is fixedly installed with a lifting plate, the two vertical sections of the portal frame are each provided with a left-right through-sliding limiting groove, a lifting slide rod is fixedly installed between the upper and lower sides of the inner sides of the two limiting grooves, the left and right sides of the lifting plate are each fixedly installed with a limiting slider, the two limiting sliders are slidably connected to the two lifting slide rods respectively, a second servo motor is fixedly installed at the bottom of the lifting plate, and the output shaft of the second servo motor is provided with a grinding mechanism.

[0014] A further improvement of this utility model is that the grinding mechanism includes an inner hole adjustment box, the top center of which is fixedly connected to the bottom end of the output shaft of the second servo motor, a moving groove is provided at the bottom of the inner hole adjustment box, a positive and negative threaded rod three is movably installed on the right side of the inner wall of the moving groove, the left end of the positive and negative threaded rod three passes through to the left side of the inner hole adjustment box and is fixedly installed with a knob, the left and right sides of the outer wall of the positive and negative threaded rod three are respectively provided with threaded walls three with opposite threads, and the outer walls of the two threaded walls three are threadedly installed with hanging plates, and the bottom of the two hanging plates are fixedly installed with suspended sandpaper rollers.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a deburring device for the inner hole of a mechanical workpiece. Through the cooperation between the clamping and positioning mechanism and the adjusting mechanism, which includes a clamping cylinder, a lifting threaded rod, a limiting slide rod, and a lower pressure plate, the deburring device can stably clamp the outer wall of a circular mechanical workpiece while also pressing it down to fix it, thereby improving the stability of the workpiece during grinding and making the deburring device more applicable and stable.

[0017] 2. This utility model provides a deburring device for the inner hole of mechanical workpieces. Through the cooperation between the base platform, the collection groove, the slide rod, the placement rod, the pull hole, and the debris collection drawer, workpieces with different inner hole diameters can have all the debris generated during inner hole grinding collected in the debris collection drawer without affecting the placement stability. This facilitates centralized cleaning, avoids contaminating the work surface, and eliminates the need to clean the platform every time processing is performed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the clamping and positioning mechanism of the present invention.

[0020] Figure 3 This is a schematic diagram of the adjustment mechanism of the present invention.

[0021] Figure 4 This is a schematic diagram of the base platform of the present invention.

[0022] Figure 5 This is a schematic diagram of the grinding and deburring mechanism of this utility model.

[0023] Figure 6 This is a schematic diagram of the grinding mechanism of this utility model.

[0024] In the diagram: 1. Base platform; 11. Collection groove; 12. Slide rod; 13. Placement rod; 14. Pull-out hole; 15. Debris collection drawer; 2. Clamping and positioning mechanism; 21. Clamping box; 22. Clamping slide; 23. Servo motor one; 24. Positive and negative threaded rod one; 25. Clamping moving plate; 3. Adjustment mechanism; 31. Adjustment box; 32. Adjustment slide; 33. Positive and negative threaded rod two; 34. Adjustment knob; 35. Moving plate; 36. Clamping circle Column; 37. Lifting threaded rod; 38. Limiting slide rod; 39. Lower pressure plate; 4. Grinding and deburring mechanism; 41. Gantry frame; 42. Electric push rod; 43. Lifting plate; 44. Limiting slide groove; 45. Lifting slide rod; 46. Limiting slider; 47. Servo motor II; 48. Grinding mechanism; 481. Inner hole adjustment box; 482. Moving groove; 483. Positive and negative threaded rod III; 484. Knob; 485. Hanging plate; 486. Suspended sanding roller. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1 , Figure 2 , Figure 3As shown, this utility model provides a deburring device for the inner hole of a mechanical workpiece, including a base platform 1. A clamping and positioning mechanism 2 is provided on the rear side of the top of the base platform 1. Two left-right mirror-shaped adjustment mechanisms 3 are provided on the front side of the clamping and positioning mechanism 2. A grinding and deburring mechanism 4 is provided on the top of the base platform 1. The clamping and positioning mechanism 2 is located inside the grinding and deburring mechanism 4. The clamping and positioning mechanism 2 includes a clamping box 21, which is fixedly installed on the rear side of the top of the base platform 1. A clamping groove 22 is opened on the front side of the clamping box 21. A servo motor 23 is fixedly installed on the right side of the clamping box 21. The output shaft of the servo motor 23 passes through the inner cavity of the clamping groove 22 and is fixedly installed with a positive and negative threaded rod 24. The outer walls of the positive and negative threaded rod 24 are respectively provided with opposite threaded walls on the left and right sides. The outer walls of the two threaded walls are threaded with clamping moving plates 25. The two adjustment mechanisms 3 each include an adjustment box 31, which is fixedly installed on the two clamping moving plates 25. On the front side of the movable plate 25, the tops of the two adjusting boxes 31 are movably mounted with lifting threaded rods 37, and the tops of the lifting threaded rods 37 are fixedly mounted with control knobs. The outer walls of the two lifting threaded rods 37 are threaded with lower pressure plates 39. The tops of the two adjusting boxes 31 are fixedly mounted with limit slide rods 38, which are located on one side of the lifting threaded rods 37. The lower pressure plate 39 is slidably connected to the limit slide rod 38. A rubber pad is fixedly mounted on the bottom side of the lower pressure plate 39 away from the adjusting box 31. Two adjustment boxes 31 are provided with adjustment grooves 32 on their opposite sides. Two threaded rods 33 are movably installed on the rear side of the two adjustment grooves 32. The front end of the threaded rods 33 extends through to the front side of the adjustment box 31 and is fixedly installed with an adjustment knob 34. The outer walls of the threaded rods 33 are provided with threaded walls 2 with opposite threads on their front and rear sides. The outer walls of the two threaded walls 2 are threaded with a movable plate 35. A clamping cylinder 36 is fixedly installed on the side of the movable plate 35 away from the adjustment groove 32.

[0027] In use, the servo motor 23 on the right side of the clamping box 21 can be started to drive the positive and negative threaded rod 24 in the clamping groove 22 to rotate, thereby driving the opposite threaded wall 1 on the left and right sides of the outer wall of the positive and negative threaded rod 24 to rotate. With the threaded connection between the clamping moving plate 25 and the threaded wall 1, the overall adjustment mechanism 3 can be controlled to quickly clamp the mechanical workpiece. When a round mechanical workpiece is required, the two clamping cylinders 36 can be used to stably clamp its arc edge outer wall. At the same time, before clamping, the adjustment groove 32 at the front end of the two adjustment boxes 31 can be rotated to drive the positive and negative threaded rod 33 in the adjustment groove 32 to rotate, thereby causing the two opposite threaded walls 33 to drive the moving plate 35 and the clamping cylinder 36 to move closer to each other, thus accommodating round workpieces of different sizes for clamping. After clamping, the control knob at the top of the lifting threaded rod 37 can be rotated, and the threaded connection between the lower pressure plate 39 and the lifting threaded rod 37 can be used to stabilize the sliding of the limit slide rod 38, so that the rubber pad presses the top of the workpiece for fixation, and then grinding can begin.

[0028] like Figure 4 As shown, a collection groove 11 is provided on the top of the base platform 1. A sliding rod 12 is fixedly installed between the left and right sides of the inner wall of the collection groove 11. Two placement rods 13 are slidably installed on the outer wall of the sliding rod 12. A limiting movement groove is provided on the front side of the top of the base platform 1. The bottom of the two placement rods 13 overlaps with the bottom of the inner side of the limiting movement groove. The top of the two placement rods 13 is on the same horizontal line as the top of the base platform 1. A pull-out hole 14 is provided on the front side of the base platform 1, which extends to the inner cavity of the collection groove 11. A debris collection drawer 15 is provided in the inner cavity of the collection groove 11. The front end of the debris collection drawer 15 passes through the pull-out hole 14 to the front side of the base platform 1.

[0029] The workpiece can slide to both sides according to the inner diameter to adjust the spacing of the placement rods 13, so that it can move stably on the outer wall of the slide rod 12 and ensure the stability of the placement rods 13. At the same time, the debris generated during grinding can fall directly from the inner hole into the debris collection drawer 15 in the collection groove 11 for collection. When cleaning is required, the debris collection drawer 15 can be pulled out through the pull hole 14.

[0030] like Figure 5 , Figure 6As shown, the grinding and deburring mechanism 4 includes a portal frame 41. The bottom of the two vertical sections of the portal frame 41 is fixedly connected to the top of the base platform 1. The clamping box 21 is located between the two vertical sections of the portal frame 41. An electric push rod 42 is fixedly installed on the top of the portal frame 41. The output end of the electric push rod 42 extends through to the bottom of the horizontal section of the portal frame 41 and is fixedly installed with a lifting plate 43. Each of the two vertical sections of the portal frame 41 has a left-right through-sliding groove 44. A lifting slide rod 45 is fixedly installed between the upper and lower sides of the inner side of the two limiting slide grooves 44. Limiting sliders 46 are fixedly installed on the left and right sides of the lifting plate 43. The two limiting sliders 46 are slidably connected to the two lifting slide rods 45 respectively. A servo is fixedly installed at the bottom of the lifting plate 43. Servo motor 2 47, the output shaft of servo motor 2 47 is equipped with a grinding mechanism 48, the grinding mechanism 48 includes an inner hole adjustment box 481, the top center of the inner hole adjustment box 481 is fixedly connected to the bottom end of the output shaft of servo motor 2 47, the bottom of the inner hole adjustment box 481 is provided with a moving groove 482, the right side of the inner wall of the moving groove 482 is movably installed with a positive and negative threaded rod 3 483, the left end of the positive and negative threaded rod 3 483 passes through to the left side of the inner hole adjustment box 481 and is fixedly installed with a knob 484, the left and right sides of the outer wall of the positive and negative threaded rod 3 483 are respectively provided with threaded walls 3 with opposite threads, and the outer walls of the two threaded walls 3 are threadedly installed with hanging plates 485, and the bottom of the two hanging plates 485 are fixedly installed with suspended sandpaper rollers 486;

[0031] When grinding begins, the electric push rod 42 at the top of the horizontal position of the gantry frame 41 is activated, which drives the lifting plate 43 to slide stably downward on the outer wall of the lifting slide rod 45 using the limit slider 46. This causes the servo motor 47 and the two suspended abrasive rollers 486 below the inner hole adjustment box 481 to extend into the inner hole of the fixed mechanical workpiece. Then, rotating the knob 484 on the left side of the inner hole adjustment box 481 drives the positive and negative threaded rod 483 in the moving groove 482 to rotate. The threaded wall of the positive and negative threaded rod 483 with the opposite threads on the left and right sides of the outer wall of the positive and negative threaded rod 483 is connected to the thread of the hanging plate 485 to control the two suspended abrasive rollers 486 to move to the left and right sides until they abut against the inner wall of the inner hole of the mechanical workpiece, improving the applicability to different inner hole diameters. At this time, activating the servo motor 47 will cause the entire inner hole adjustment box 481 to drive the two suspended abrasive rollers 486 to perform grinding and deburring operations on the inner hole of the mechanical workpiece.

[0032] The working principle of the deburring device for the inner hole of the mechanical workpiece will be explained in detail below.

[0033] like Figure 1-6As shown, during use, the servo motor 23 on the right side of the clamping box 21 can be started to drive the positive and negative threaded rod 24 in the clamping slide 22 to rotate, thereby driving the threaded wall 24 with opposite threads on the left and right sides of the outer wall of the positive and negative threaded rod 24 to rotate. With the threaded connection between the clamping moving plate 25 and the threaded wall 24, the overall adjustment mechanism 3 can be controlled to quickly clamp the mechanical workpiece. When a round mechanical workpiece is required, the two clamping cylinders 36 can be used to stably clamp its arc edge outer wall. At the same time, before clamping, the adjustment slide 32 at the front end of the two adjustment boxes 31 can be rotated to drive the adjustment slide 3. The rotating of the two opposing threaded rods 33 causes the two threaded walls 36 with opposite threads to move the moving plate 35 and the clamping cylinder 36 closer together, thus accommodating round workpieces of different sizes for clamping. After clamping, the control knob at the top of the lifting threaded rod 37 can be rotated to stabilize the workpiece by using the threaded connection between the lower pressure plate 39 and the lifting threaded rod 37, and the sliding limit rod 38 can be used to slide down, pressing the rubber pad against the top of the workpiece for fixation, thus allowing grinding to begin. At the same time, the workpiece can be slid to both sides according to the inner diameter to adjust the spacing of the placement rods 13, so that it is on the outer wall of the sliding rod 12. Stable movement ensures the stability of the placement rod 13. Simultaneously, grinding debris can fall directly from the inner hole into the debris collection drawer 15 within the collection groove 11 for collection. When cleaning is needed, the debris collection drawer 15 can be pulled out through the pull-out hole 14. At the start of grinding, activating the electric push rod 42 at the top of the horizontal position of the gantry frame 41 drives the lifting plate 43 to slide stably downwards on the outer wall of the lifting slide rod 45 using the limit slider 46. This allows the servo motor 47 and the two suspended sanding rollers 486 below the inner hole adjustment box 481 to extend into the inner hole of the fixed mechanical workpiece. Then, rotating the knob 484 on the left side of the inner hole adjustment box 481 will drive the positive and negative threaded rod 483 in the moving groove 482 to rotate. By using the threaded wall of the opposite threads on the left and right sides of the outer wall of the positive and negative threaded rod 483 to connect with the threaded plate 485, the two suspended sanding rollers 486 can be controlled to move to the left and right sides until they abut against the inner wall of the inner hole of the mechanical workpiece, thus improving the applicability to different inner hole diameters. At this time, starting the servo motor 47 will enable the entire inner hole adjustment box 481 to drive the two suspended sanding rollers 486 to perform grinding and deburring operations on the inner hole of the mechanical workpiece.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A mechanical device for deburring the inner hole of a workpiece, comprising a base platform (1), characterized in that: The top rear side of the base platform (1) is provided with a clamping positioning mechanism (2), the front side of the clamping positioning mechanism (2) is provided with two left-right mirror image adjusting mechanisms (3), the top of the base platform (1) is provided with a polishing deburring mechanism (4), the clamping positioning mechanism (2) is located on the inner side of the polishing deburring mechanism (4), the clamping positioning mechanism (2) comprises a clamping box (21), the clamping box (21) is fixedly installed on the top rear side of the base platform (1), the front side of the clamping box (21) is provided with a clamping sliding groove (22), the right side of the clamping box (21) is fixedly installed with a servo motor (23), the output shaft of the servo motor (23) penetrates into the inner cavity of the clamping sliding groove (22) and is fixedly installed with a reversible threaded rod (24), the outer wall of the reversible threaded rod (24) is provided with a threaded wall (1) with opposite threads on the left and right sides, and the outer wall of the two threaded walls (1) is threadedly installed with a clamping moving plate (25). Both the adjusting mechanisms (3) comprise an adjusting box (31), both the adjusting boxes (31) are fixedly installed on the front side of the two clamping moving plates (25), the top of both the adjusting boxes (31) is movably installed with a lifting threaded rod (37), and the top end of the lifting threaded rod (37) is fixedly installed with a control knob, the outer wall of both the lifting threaded rods (37) is threadedly installed with a pressing plate (39), the top of both the adjusting boxes (31) is fixedly installed with a limiting sliding rod (38), the limiting sliding rod (38) is located on one side of the lifting threaded rod (37), the pressing plate (39) is slidably connected with the limiting sliding rod (38), and the bottom of the pressing plate (39) is fixedly installed with a rubber pad away from the adjusting box (31).

2. A mechanical workpiece inner hole deburring device according to claim 1, characterized in that: The opposite surfaces of the two adjusting boxes (31) are provided with adjusting sliding grooves (32), and the rear sides of the two adjusting sliding grooves (32) are movably installed with reversible threaded rods (33), and the front ends of the reversible threaded rods (33) penetrate into the front sides of the adjusting boxes (31) and are fixedly installed with adjusting knobs (34).

3. A mechanical workpiece bore deburring device according to claim 2, wherein: The outer wall of the reversible threaded rod (33) is provided with a threaded wall (2) with opposite threads on the front and rear sides, the outer wall of the two threaded walls (2) is threadedly installed with a moving plate (35), and the side of the moving plate (35) away from the adjusting sliding groove (32) is fixedly installed with a clamping cylinder (36).

4. The apparatus of claim 1, wherein: The top of the base platform (1) is provided with a collecting groove (11), the inner wall between the left and right sides of the collecting groove (11) is fixedly installed with a sliding rod (12), the outer wall of the sliding rod (12) is slidably installed with two placing rods (13), the top front side of the base platform (1) is provided with a limiting moving groove, the bottoms of the two placing rods (13) are overlapped with the inner bottom of the limiting moving groove, and the tops of the two placing rods (13) are on the same horizontal line with the top of the base platform (1).

5. A mechanical workpiece bore deburring device as defined in claim 4, wherein: The front side of the base platform (1) is provided with a pull hole (14) penetrating into the inner cavity of the collection groove (11), and the inner cavity of the collection groove (11) is provided with a debris collection drawer (15), and the front end of the debris collection drawer (15) penetrates the pull hole (14) to the front side of the base platform (1).

6. A mechanical workpiece bore deburring device as defined in claim 1, wherein: The polishing deburring mechanism (4) comprises a door-shaped frame (41), the bottoms of the two verticals of the door-shaped frame (41) are fixedly connected with the top of the base platform (1), the clamping box (21) is located between the two verticals of the door-shaped frame (41), the top of the door-shaped frame (41) is fixedly installed with an electric push rod (42), the output end of the electric push rod (42) penetrates to the bottom of the horizontal of the door-shaped frame (41) and is fixedly installed with a lifting plate (43), the two verticals of the door-shaped frame (41) are both provided with left-right penetrating limiting sliding grooves (44), two limiting sliding grooves (44) are fixedly installed between the inner sides of the upper and lower sides, the left and right sides of the lifting plate (43) are both fixedly installed with limiting sliding blocks (46), two limiting sliding blocks (46) are respectively connected with two lifting sliding rods (45), the bottom of the lifting plate (43) is fixedly installed with a servo motor two (47), and the output shaft of the servo motor two (47) is provided with a polishing mechanism (48).

7. A mechanical workpiece bore deburring device as defined in claim 6, wherein: The polishing mechanism (48) comprises an inner hole adjusting box (481), the top center of the inner hole adjusting box (481) is fixedly connected with the bottom end of the output shaft of the servo motor two (47), the bottom of the inner hole adjusting box (481) is provided with a moving groove (482), the right side of the inner wall of the moving groove (482) is movably installed with a positive and negative screw rod three (483), the left end of the positive and negative screw rod three (483) penetrates to the left side of the inner hole adjusting box (481) and is fixedly installed with a knob (484), the left and right sides of the outer wall of the positive and negative screw rod three (483) are respectively provided with screw walls three with opposite threads, and the outer walls of the two screw walls three are both screw installed with hanging plates (485), and the bottoms of the two hanging plates (485) are both fixedly installed with suspension abrasive cloth rollers (486).

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