A ball screw raceway surface superfinishing device

Abstract

The invention discloses a device for ultra-finishing the surface of a ball screw raceway, and relates to the technical field of screw processing. The invention comprises a rotating ring, in which a polishing block is arranged; a fixed box, a lifting rod is movably arranged on the top wall of the fixed box, a first bevel gear is fixedly arranged on the bottom of the lifting rod, a fixed frame is rotatably arranged on the bottom of the first bevel gear, a polishing wheel is rotatably arranged in the fixed frame, a second bevel gear is arranged on the fixed frame, and a transmission belt is arranged between the second bevel gear and the polishing wheel; the invention also comprises two sliding blocks, both of which are slidably provided with a lower pressure rod, each of which is slidably provided with a first telescopic rod, and one end of each first telescopic rod away from the lower pressure rod is fixedly connected to the fixed frame; the polishing wheel can polish the raceways of screws with different diameters and leads, and the lower pressure rod can realize the angle adjustment of the polishing wheel; the second friction wheel abuts against the first friction wheel at different positions, and can adaptively adjust the rotation speed of the polishing wheel according to the diameter of the screw.

Description

Technical Field

[0001] The invention relates to the technical field of screw processing, and in particular to a device for superfinishing the surface of a ball screw raceway. Background Art

[0002] Ball screw is a rolling functional component product that converts rotary motion into linear motion, or converts linear motion into rotary motion. It is the most commonly used transmission element in precision machinery and automation devices. Its main function is to convert rotary motion into linear motion, or to convert torque into axial repetitive force. Due to its small friction resistance, ball screws are widely used in various industrial equipment and precision instruments. There are two common circulation methods: external circulation and internal circulation. The ball screw is composed of a screw, a nut, a steel ball, a pre-loaded plate, a reverser, a dust ring, etc. It has the characteristics of high precision, reversibility and high efficiency;

[0003] As the core component of the ball screw pair, the lead screw needs to be polished during its processing to eliminate the oxide scale and pitting on the lead screw. By polishing, the surface finish of the lead screw can be improved to reduce friction and noise. In the prior art, a multi-head polishing machine with more than two polishing wheels is usually used. Each polishing wheel is driven by a motor, and the lead screw is polished by the high-speed rotation of the polishing wheel. The shortcomings of the polishing machine of this structure are that it is bulky and large, and the more than two polishing wheels are made of different materials. Such as steel wire wheels, copper wire wheels, hemp wheels, cloth wheels, leather wheels, etc. These polishing wheels have better effects when polishing cylindrical workpieces. However, when polishing the lead screw, the polishing wheel can only abut against the surface of the ball screw, and cannot abut well with the thread groove with depth and curvature, which easily leads to insufficient polishing of the thread groove of the lead screw, affecting the processing quality of the lead screw. Moreover, the polishing wheel of this polishing machine cannot adjust the angle so that the cutting angle of the polishing wheel is consistent with the spiral angle of the lead screw, so as to achieve full contact and leave no polishing blind area. Summary of the invention

[0004] The purpose of the present invention is to provide a ball screw raceway surface superfinishing device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ball screw raceway surface ultra-finishing processing device, comprising a shell and conveying lines arranged on both sides thereof, a surface polishing mechanism, which comprises a rotating ring rotatably arranged in the shell, and a polishing block for polishing the outer peripheral surface of the screw is slidably arranged in the rotating ring; a groove polishing mechanism, which comprises a fixed box fixedly arranged in the shell, a lifting rod movably arranged on the top wall of the fixed box, a first bevel gear is fixedly arranged at the bottom of the lifting rod, a fixed frame is rotatably arranged at the bottom of the first bevel gear, a polishing wheel adapted to the screw thread groove is rotatably arranged in the fixed frame, a second bevel gear meshing with the first bevel gear is rotatably arranged on the fixed frame, and a transmission belt is arranged between the second bevel gear and the polishing wheel; an angle adjustment mechanism, which comprises two sliding blocks slidably arranged on the top of the shell, a downward pressure rod is slidably arranged on the two sliding blocks, a first telescopic rod is slidably arranged on each of the downward pressure rods, and an end of each of the first telescopic rods away from the downward pressure rod is fixedly connected to the fixed frame.

[0006] Preferably, a support ring is fixedly arranged in the shell, the support ring is rotatably connected to the rotating ring, three sliding rods are slidably arranged in the rotating ring, and a polishing block is fixedly arranged on each of the sliding rods.

[0007] Preferably, a fixing column is fixedly provided in the shell, a seesaw is rotatably provided on the fixing column, a connecting rod is rotatably provided on the end of the seesaw away from the fixing column, a cleaning hair ball is fixedly provided on the end of the connecting rod, a torsion spring is fixedly provided between the seesaw and the connecting rod, and a second spring is fixedly provided between the seesaw and the top wall inside the shell.

[0008] Preferably, a lifting plate is slidably provided on the top of the fixed box, a lifting frame is fixedly provided on the lifting plate, a lifting rod is fixedly provided on the end of the rocker plate close to the fixed column, and counterweight blocks are fixedly provided on the top of the lifting rod and the two pressing rods.

[0009] Preferably, a first friction wheel is fixedly provided on a side of the rotating ring close to the fixed box, a connecting frame is rotatably provided on the lifting rod, a second telescopic rod is rotatably provided on an end of the connecting frame away from the lifting rod, a third bevel gear meshing with the first bevel gear is fixedly provided on an end of the second telescopic rod close to the lifting rod, and a second friction wheel abutting against the first friction wheel is fixedly provided on an end of the second telescopic rod away from the third bevel gear.

[0010] Preferably, two guide rails are fixedly provided on the top wall of the fixed box, and two convex rods are rotatably provided on the second telescopic rod, and the convex rods are slidably provided on the guide rails in a one-to-one corresponding manner.

[0011] Preferably, three oblique grooves are provided in the rotating ring, and each of the sliding rods is fixedly provided with a protrusion, and each of the protrusions is slidably provided in each oblique groove in a one-to-one correspondence.

[0012] Preferably, a gear ring is slidably provided on the outer peripheral surface of the rotating ring, three first springs are fixedly provided between the gear ring and the side of the rotating ring away from the fixed box, each of the sliding rods is slidably provided in the gear ring, and an abutment block is fixedly provided on the seesaw.

[0013] Preferably, a servo motor is fixedly disposed in the housing, and a driving gear meshing with a gear ring is fixedly disposed at an output end of the servo motor.

[0014] Preferably, an elastic rope is fixedly arranged between each of the sliding blocks and the fixed box.

[0015] In the above technical scheme, the present invention provides a ball screw raceway surface ultra-precision treatment device, which has the following beneficial effects: 1. Through the up and down movement of the lower pressure rod and the polishing wheel in combination with the counterweight block, the screw thread grooves of different diameters can be polished, and the angle of the polishing wheel can be adjusted by the lower pressure rod being inserted into the thread groove, so that the polishing wheel is inserted into the thread groove. When the screw moves forward, the two lower pressure rods abut against the thread groove to realize the self-rotation of the screw, so that the polishing wheel polishes all the thread grooves; 2. The polishing wheel moves downward and abuts against the screws of different diameters. When connected, the second friction wheel is driven to move downward, so that the second friction wheel abuts against the first friction wheel at different positions, and then the rotation speed of the polishing wheel is adaptively adjusted according to the diameter of the screw; 3. The polishing block is driven by the rotation of the rotating ring to polish the outer circumference of the screw, and the screw raceways of different diameters and leads can be polished by the movement of the polishing block; 4. The cleaning ball can be brought into contact with the polished screw through the seesaw, so that the powder on the screw is cleaned off, and the upward movement of the polishing wheel and the lower pressure rod and the movement of the polishing block are controlled at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the structure of a gear ring provided in an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the structure of a seesaw provided in an embodiment of the present invention;

[0020] Figure 4 A schematic structural diagram of a first friction wheel provided in an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of the structure of a rotating ring provided in an embodiment of the present invention;

[0022] Figure 6 A schematic diagram of the structure of a chute provided in an embodiment of the present invention;

[0023] Figure 7 A schematic diagram of the structure of an elastic rope provided in an embodiment of the present invention;

[0024] Figure 8 A schematic diagram of the structure of a polishing wheel provided in an embodiment of the present invention;

[0025] Fig. 9 A schematic diagram of the structure of the polishing wheel and the lead screw abutting against each other provided by an embodiment of the present invention;

[0026] Fig.10 A schematic structural diagram of a guide rail provided in an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1. Shell; 2. Conveyor line; 3. Hydraulic cylinder; 4. Servo motor; 5. Driving gear; 6. Lead screw; 7. Dust removal blower; 11. Fixed box; 12. Lifting rod; 13. First bevel gear; 14. Fixed frame; 15. Polishing wheel; 16. Second bevel gear; 17. Transmission belt; 171. Pulley; 18. First telescopic rod; 19. Connecting frame; 21. Gear ring; 22. Rotating ring; 23. Polishing block; 24. Sliding rod; 25. Bump; 26. Bevel groove; 27. The first spring; 28, support ring; 31, fixed column; 32, seesaw; 33, lifting rod; 34, second spring; 35, abutment block; 36, connecting rod; 37, torsion spring; 38, cleaning hair ball; 41, first friction wheel; 42, second telescopic rod; 43, second friction wheel; 44, third bevel gear; 45, convex rod; 46, guide rail; 51, downward pressure rod; 52, slider; 53, elastic rope; 54, slide groove; 55, lifting plate; 56, lifting frame; 57, counterweight block. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] See also Figure 1-10A ball screw raceway surface ultra-finishing treatment device includes a housing 1 and a conveyor line 2 arranged on both sides thereof, a surface polishing mechanism, which includes a rotating ring 22 rotatably arranged in the housing 1, and a polishing block 23 for polishing the outer peripheral surface of the lead screw 6 is slidably arranged in the rotating ring 22; a groove polishing mechanism, which includes a fixed box 11 fixedly arranged in the housing 1, a lifting rod 12 is movably arranged on the top wall of the fixed box 11, a first bevel gear 13 is fixedly arranged at the bottom of the lifting rod 12, a fixed frame 14 is rotatably arranged at the bottom of the first bevel gear 13, and a fixed frame 14 is fixedly arranged at the bottom of the fixed frame 11. 4 is rotatably provided with a polishing wheel 15 adapted to the thread groove of the lead screw 6, a second bevel gear 16 meshing with the first bevel gear 13 is rotatably provided on the fixed frame 14, and a transmission belt 17 is provided between the second bevel gear 16 and the polishing wheel 15; an angle adjustment mechanism, which includes two sliders 52 slidably provided on the top of the housing 1, a down-pressing rod 51 is slidably provided on the two sliders 52, and a first telescopic rod 18 is slidably provided on each down-pressing rod 51, and one end of each first telescopic rod 18 away from the down-pressing rod 51 is fixedly connected to the fixed frame 14;The conveyor line 2 is provided with a plurality of rollers for conveying the lead screw 6, and the rollers are driven by a motor and a belt. This is the prior art, and no further description is given. When the outer circle of the polishing wheel 15 is inserted into the thread groove, it can be adapted to the thread groove body. A pulley 171 is fixedly provided on the side of the second bevel gear 16 away from the first bevel gear 13. A pulley 171 penetrating the fixed frame 14 is also provided on the polishing wheel 15. The transmission belt 17 is sleeved on the two pulleys 171. Two slide grooves 54 for the slider 52 to slide are provided on the fixed box 11. The two slide grooves 54 are symmetrically arranged on the lifting rod 1 2 on both sides, in the initial state, the polishing wheel 15 is perpendicular to the axial direction of the lead screw 6. When in use, first lift the two lower pressure rods 51 and the lifting rod 12, and place the lead screw 6 on the conveyor line 2. When the conveyor line 2 conveys the end of the lead screw 6 to just below the polishing wheel 15, the two lower pressure rods 51 and the lifting rod 12 are lowered. At this time, the end faces of the polishing wheel 15 and the two lower pressure rods 51 are in contact with the outer peripheral surface of the end of the lead screw 6. As the conveyor line 2 slowly conveys the lead screw 6 toward the polishing wheel 15, since the thread groove of the lead screw 6 is curved, when the lead screw 6 moves, it will first The bottom end of one pressing rod 51 moves to above the thread groove, at which time the corresponding pressing rod 51 will be stuck in the thread groove, while the polishing wheel 15 and the other pressing rod 51 are still in contact with the surface of the lead screw 6. As the lead screw 6 moves, the fixing frame 14 is driven to rotate through the first telescopic rod 18, thereby driving the polishing wheel 15 to rotate. When the other pressing rod 51 is also stuck in the thread groove, the inclination angle of the polishing wheel 15 is consistent with the curvature of the thread groove. At this time, the polishing wheel 15 is pressed down and stuck in the thread groove, thereby realizing the adaptive adaptation of the polishing wheel 15 and the curvature of the thread groove of the lead screw 6. The lifting rod 12 is moved, and the lifting rod 12 drives the first bevel gear 13 to rotate, and the first bevel gear 13 drives the second bevel gear 16 to rotate, and the second bevel gear 16 drives the polishing wheel 15 to rotate through the pulley 171 and the transmission belt 17, so that the end face of the polishing wheel 15 extending into the thread groove polishes the inner wall of the thread groove. When the conveyor line 2 slowly pushes the lead screw 6 to move in the direction close to the polishing wheel 15, the ends of the two lower pressure rods 51 stuck in the thread groove abut against the thread groove, so that the lead screw 6 can rotate, so that the polishing wheel 15 polishes all the thread grooves. ;

[0031] Furthermore, a support ring 28 is fixedly provided in the shell 1, and the support ring 28 is rotatably connected to the rotating ring 22. Three slide bars 24 are slidably provided in the rotating ring 22, and a polishing block 23 is fixedly provided on each slide bar 24; the three slide bars 24 are evenly arranged in the rotating ring 22, and when the conveyor line 2 pushes the screw 6 to move, one end of the screw 6 first enters the fixed box 11, and then extends into the rotating ring 22. When the end of the screw 6 extends into the rotating ring 22, the three slide bars 24 are pressed down to make the polishing block 23 at the end of the slide bar 24 abut against the outer peripheral surface of the screw 6, and then the rotating ring 22 is rotated, and the rotating ring 22 drives the polishing block 23 to rotate, thereby polishing the outer peripheral surface of the screw 6.

[0032] In another embodiment of the present invention, a fixed column 31 is fixedly arranged in the housing 1, a seesaw 32 is rotatably arranged on the fixed column 31, a connecting rod 36 is rotatably arranged on the end of the seesaw 32 away from the fixed column 31, a cleaning hair ball 38 is fixedly arranged on the end of the connecting rod 36, a torsion spring 37 is fixedly arranged between the seesaw 32 and the connecting rod 36, and a second spring 34 is fixedly arranged between the seesaw 32 and the top wall of the housing 1; the lower end of the seesaw 32 is located on the side of the rotating ring 22 away from the fixed box 11, such as Figure 3 As shown, in the initial state, the end of the rocker 32 is lower than the axis of the rotating ring 22. When the screw 6 extends from the middle of the rotating ring 22, the bottom end of the rocker 32 and the connecting rod 36 will be lifted. At this time, the second spring 34 is compressed, so that the cleaning ball 38 is in contact with the screw 6. A number of bristles are provided on the cleaning ball 38. The polished screw 6 is cleaned by the bristles to remove the powder generated by polishing on the screw 6.

[0033] Furthermore, a lifting plate 55 is slidably provided on the top of the fixed box 11, and a lifting frame 56 is fixedly provided on the lifting plate 55. A lifting rod 33 is fixedly provided on the end of the seesaw 32 close to the fixed column 31, and a counterweight 57 is fixedly provided on the top of the lifting rod 12 and the two pressing rods 51; a straight groove for the sliding of the pressing rod 51 is provided on the lifting plate 55, and the width of the straight groove is smaller than the diameter of the counterweight 57. The downward pressure of the pressing rod 51 and the polishing wheel 15 is increased by the counterweight 57, so that the pressing rod 51 and the polishing wheel 15 can be pressed down into the threaded groove, and a counterweight 57 is also fixedly provided on the lifting plate 55, and the end of the lifting plate 55 away from the seesaw 32 is under the lifting frame 56 In the initial state, the downward pressure of the second spring 34 causes one end of the rocker 32 to be away from the fixed column 31 and to be below the central axis of the rotating ring 22. At this time, the lifting rod 33 is tilted up and drives the lifting frame 56 to move upward, so that the lifting plate 55 drives the two lower pressure rods 51 and the lifting rod 12 to move upward, thereby lifting the lower pressure rod 51 and the lower end of the polishing wheel 15. When the lead screw 6 lifts the lower end of the rocker 32, the lifting rod 33 moves downward, and the counterweight block 57 is used to move the lower pressure rod 51 and the end of the polishing wheel 15 downward, so that the lower pressure rod 51 and the polishing wheel 15 can be suitable for lead screws 6 of different diameters, so that the polishing wheel 15 can polish the thread grooves of lead screws 6 of different diameters.

[0034] In another embodiment of the present invention: a first friction wheel 41 is fixedly provided on one side of the rotating ring 22 close to the fixed box 11, a connecting frame 19 is rotatably provided on the lifting rod 12, a second telescopic rod 42 is rotatably provided on one end of the connecting frame 19 away from the lifting rod 12, a third bevel gear 44 meshing with the first bevel gear 13 is fixedly provided on one end of the second telescopic rod 42 close to the lifting rod 12, and a second friction wheel 43 abutting against the first friction wheel 41 is fixedly provided on one end of the second telescopic rod 42 away from the third bevel gear 44; the first friction wheel 41 and the second friction wheel 43 are both configured as frustum, the waistline of the first friction wheel 41 is parallel to the waistline of the second friction wheel 43, the connecting frame 19 is L-shaped, and the rod core of the second telescopic rod 42 can only slide with the rod sleeve. The third bevel gear 44 and the second bevel gear 16 are symmetrically arranged on both sides of the first bevel gear 13 in the initial state. When the fixing frame 14 and the polishing wheel 15 rotate to adapt to the thread groove, the angle between the second bevel gear 16 and the third bevel gear 44 also changes accordingly. When the rotating ring 22 rotates, it drives the first friction wheel 41 to rotate, the first friction wheel 41 drives the second friction wheel 43 to rotate, the second friction wheel 43 drives the third bevel gear 44 to rotate through the second telescopic rod 42, and the third bevel gear 44 drives the second bevel gear 16 to rotate through the first bevel gear 13. When the polishing wheel 15 is stuck in the thread grooves of different curvatures, the first bevel gear 13 can be driven to rotate through the first friction wheel 41, thereby rotating the polishing wheel 15.

[0035] Specifically, two guide rails 46 are fixedly provided on the top wall of the fixed box 11, and two protruding rods 45 are rotatably provided on the second telescopic rod 42. The protruding rods 45 are slidably provided on the guide rails 46 in a one-to-one correspondence; the guide rails 46 are parallel to the waistline of the first friction wheel 41, such as Fig.10As shown, a ring (not shown) is rotatably provided on the rod sleeve of the second telescopic rod 42, and two protruding rods 45 are fixedly provided on the ring. The lifting rod 12 moves upward to drive the third bevel gear 44 and the second telescopic rod 42 to move upward. When the second telescopic rod 42 moves upward, the second friction wheel 43 moves up along the waistline of the first friction wheel 41 through the cooperation of the guide rail 46 and the protruding rod 45. When the lead screw 6 of different diameters lifts the end of the rocker 32, the lifting rod 33 puts down the lifting plate 55. At this time, the lifting plate 55, the pressing rod 51 and the polishing wheel 15 are moved downward by the counterweight block 57, and the second friction wheel 43 also abuts against the first friction wheel 41. When the diameter of the lead screw 6 extending into the fixed box 11 changes, When the diameter of the screw 6 increases, the length of the path passed by the polishing wheel 15 when it rotates the same number of times will also increase, which will easily lead to insufficient polishing of the thread groove. While the counterweight block 57 is used to make the polishing wheel 15 and the screw 6 adaptively match in thickness, the abutment position of the second friction wheel 43 and the first friction wheel 41 is changed, so that the rotation speed of the polishing wheel 15 is adaptively matched in thickness to the screw 6.

[0036] Furthermore, three inclined grooves 26 are provided in the rotating ring 22, and each slide rod 24 is fixedly provided with a protrusion 25, and each protrusion 25 is slidably provided in each inclined groove 26 in a one-to-one manner; when each slide rod 24 is pushed in a direction away from the fixed box 11, the corresponding protrusion 25 will move downward in the direction of the inclined groove 26, so as to polish the lead screws 6 of different thicknesses, and three through grooves are provided in the rotating ring 22 for the slide rods 24 to move.

[0037] Furthermore, a gear ring 21 is slidably provided on the outer circumference of the rotating ring 22, and three first springs 27 are fixedly provided between the side of the rotating ring 22 away from the fixed box 11 and the gear ring 21, and each slide rod 24 is slidably provided in the gear ring 21, and an abutment block 35 is fixedly provided on the rocker 32; in the initial state, the gear ring 21 is located on the side of the rotating ring 22 away from the fixed box 11 by the spring, and at this time, each polishing block 23 is extended downward to the limit, and when no lead screw 6 is extended into the fixed box 11 and the rotating ring 22, the bottom end of the rocker 32 is pressed down to below the central axis of the rotating ring 22 by the second spring 34, and the lifting rod 33 presses the lower pressing rod 55 through the lifting plate 55. 1 and the polishing wheel 15 are lifted, and at this time, the gear ring 21 is pushed to the side of the rotating ring 22 close to the fixed box 11 by the abutment block 35, so that each polishing block 23 is away from the central axis of the rotating ring 22, which facilitates the lead screws 6 of different thicknesses to enter the fixed box 11 and the rotating ring 22. When the lead screw 6 is inserted into the rotating ring 22 to lift the rocker 32, the abutment block 35 is separated from the gear ring 21. At this time, the gear ring 21 is pulled to the side away from the fixed box 11 by the first spring 27. When the gear ring 21 moves, it drives the corresponding sliding rod 24 to move, thereby causing the polishing block 23 to move close to the central axis of the rotating ring 22 and abut against the outer peripheral surface of the lead screw 6 of different diameters.

[0038] A servo motor 4 is fixedly disposed in the housing 1 , and a driving gear 5 meshing with the gear ring 21 is fixedly disposed at the output end of the servo motor 4 ; the driving gear 5 is driven to rotate by the servo motor 4 , thereby driving the gear ring 21 to rotate, thereby rotating the rotating ring 22 .

[0039] When the polishing wheel 15 is tilted at an angle, the two lower pressure rods 51 drive the sliders 52 to move in the corresponding slide grooves 54, thereby stretching the corresponding elastic ropes 53. When the lead screw 6 is polished and separated from the lower pressure rods 51 and the polishing wheel 15, the elastic force of the stretched elastic ropes 53 straightens the two sliders 52 to the middle position of the slide grooves 54 again, making it convenient for the next lead screw 6 to be used. A hydraulic cylinder 3 is fixedly arranged at one end of one of the conveying lines 2 away from the housing 1. When in use, the lead screw 6 is placed on the conveying line 2, and the hydraulic cylinder 3 pushes the end of the lead screw 6 away from the housing 1 forward, so that the end of the lead screw 6 entering the rotating ring 22 can smoothly lift the rocker 32. Working principle: In the initial state, the lower end of the seesaw 32 is below the central axis of the rotating ring 22 under the action of the downward pressure of the second spring 34. At this time, the gear ring 21 is pressed against the side of the rotating ring 22 close to the fixed box 11 through the abutment block 35. The lifting rod 33 cooperates with the lifting plate 55 to lift each pressing rod 51 and the polishing wheel 15, and the polishing block 23 is away from the central axis of the rotating ring 22. The lead screw 6 is just on the conveyor line 2, and the servo motor 4 is started, and the servo motor 4 drives the drive The gear ring 21 rotates with the gear ring 21, thereby rotating the rotating ring 22, starting the hydraulic cylinder 3 to push the lead screw 6, so that one end of the lead screw 6 lifts the seesaw 32, and when the seesaw 32 is lifted, the abutment block 35 separates from the gear ring 21, and the gear ring 21 moves through the first spring 27, so that each polishing block 23 abuts against the outer peripheral surface of the lead screw 6 to polish the outer peripheral surface of the lead screw 6, and when the seesaw 32 is lifted, the lifting rod 33 rotates downward and separates from the lifting frame 56, and the lower pressure rod 51 and the polishing wheel are pressed down by each counterweight block 57. 15 moves down and abuts against the outer peripheral surface of the lead screw 6. As the lead screw 6 moves, a downward pressure rod 51 first extends into the threaded groove of the lead screw 6. When the lead screw 6 moves, the downward pressure rod 51 extending into the threaded groove drives the polishing wheel 15 and the other downward pressure rod 51 to rotate around the lifting rod 12. When the rotation angle of the polishing wheel 15 is consistent with the threaded groove, the polishing wheel 15 and the other downward pressure rod 51 are stuck in the threaded groove to fix the angle of the polishing wheel 15. In the process of the polishing wheel 15 moving down, the second friction wheel 43 is controlled to move along the waistline of the first friction wheel 41 by the guide rail 46, thereby changing the transmission ratio between the second friction wheel 43 and the first friction wheel 41. When the rotating ring 22 rotates, the second friction wheel 43 is driven to rotate by the first friction wheel 41, thereby driving the polishing wheel 15 to polish the threaded groove of the lead screw 6. A dust removal blower 7 is provided on the conveying line 2 near the hydraulic cylinder 3. The dust on the lead screw 6 to be polished is blown away by the dust removal blower 7 to improve the polishing quality.

[0040] The polishing wheel 15 used in the present invention can be made of different materials according to the thread state of the lead screw, such as steel wire, copper wire, linen, cloth, leather, wool, etc.

[0041] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A ball screw raceway surface ultra-precision treatment device, comprising a housing (1) and conveyor lines (2) arranged on both sides thereof, characterized in that: The surface polishing mechanism comprises a rotating ring (22) rotatably arranged in a housing (1), wherein a polishing block (23) for polishing the outer peripheral surface of a lead screw (6) is slidably arranged in the rotating ring (22); A groove polishing mechanism, comprising a fixed box (11) fixedly arranged in a housing (1), a lifting rod (12) movably arranged on the top wall of the fixed box (11), a first bevel gear (13) fixedly arranged at the bottom of the lifting rod (12), a fixed frame (14) rotatably arranged at the bottom of the first bevel gear (13), a polishing wheel (15) adapted to the thread groove of a lead screw (6) rotatably arranged in the fixed frame (14), a second bevel gear (16) meshing with the first bevel gear (13) rotatably arranged on the fixed frame (14), and a transmission belt (17) arranged between the second bevel gear (16) and the polishing wheel (15); An angle adjustment mechanism comprises two sliders (52) slidably arranged on the top of a shell (1), a lower pressure rod (51) being slidably arranged on both sliders (52), a first telescopic rod (18) being slidably arranged on each lower pressure rod (51), and an end of each first telescopic rod (18) away from the lower pressure rod (51) being fixedly connected to a fixing frame (14).

2. A ball screw raceway surface superfinishing device according to claim 1, characterized in that: A support ring (28) is fixedly arranged in the housing (1), and the support ring (28) is rotatably connected to the rotating ring (22). Three sliding rods (24) are slidably arranged in the rotating ring (22), and a polishing block (23) is fixedly arranged on each of the sliding rods (24).

3. A ball screw raceway surface superfinishing device according to claim 2, characterized in that: A fixing column (31) is fixedly arranged in the shell (1), a seesaw (32) is rotatably arranged on the fixing column (31), a connecting rod (36) is rotatably arranged at one end of the seesaw (32) away from the fixing column (31), a cleaning hair ball (38) is fixedly arranged at the end of the connecting rod (36), a torsion spring (37) is fixedly arranged between the seesaw (32) and the connecting rod (36), and a second spring (34) is fixedly arranged between the seesaw (32) and the inner top wall of the shell (1).

4. A ball screw raceway surface superfinishing device according to claim 3, characterized in that: A lifting plate (55) is slidably provided on the top of the fixed box (11), a lifting frame (56) is fixedly provided on the lifting plate (55), a lifting rod (33) is fixedly provided at the end of the rocker plate (32) close to the fixed column (31), and a counterweight block (57) is fixedly provided on the top of the lifting rod (12) and the two pressing rods (51).

5. A ball screw raceway surface superfinishing device according to claim 4, characterized in that: A first friction wheel (41) is fixedly arranged on one side of the rotating ring (22) close to the fixed box (11); a connecting frame (19) is rotatably arranged on the lifting rod (12); a second telescopic rod (42) is rotatably arranged on one end of the connecting frame (19) away from the lifting rod (12); a third bevel gear (44) meshing with the first bevel gear (13) is fixedly arranged on one end of the second telescopic rod (42) close to the lifting rod (12); and a second friction wheel (43) abutting against the first friction wheel (41) is fixedly arranged on one end of the second telescopic rod (42) away from the third bevel gear (44).

6. A ball screw raceway surface superfinishing device according to claim 5, characterized in that: Two guide rails (46) are fixedly arranged on the inner top wall of the fixed box (11), and two convex rods (45) are rotatably arranged on the second telescopic rod (42), and each of the convex rods (45) is slidably arranged on each guide rail (46) in a one-to-one correspondence.

7. A ball screw raceway surface superfinishing device according to claim 6, characterized in that: Three oblique grooves (26) are provided in the rotating ring (22), and each of the sliding rods (24) is fixedly provided with a protrusion (25), and each of the protrusions (25) is slidably provided in each oblique groove (26) in a one-to-one correspondence.

8. The ball screw raceway surface superfinishing device according to claim 7, characterized in that: A gear ring (21) is slidably disposed on the outer peripheral surface of the rotating ring (22), three first springs (27) are fixedly disposed between the gear ring (21) and the side of the rotating ring (22) away from the fixed box (11), each of the sliding rods (24) is slidably disposed in the gear ring (21), and an abutment block (35) is fixedly disposed on the rocker (32).

9. A ball screw raceway surface superfinishing device according to claim 8, characterized in that: A servo motor (4) is fixedly arranged in the housing (1), and a driving gear (5) meshing with a gear ring (21) is fixedly arranged at the output end of the servo motor (4).

10. A ball screw raceway surface superfinishing device according to claim 9, characterized in that: An elastic rope (53) is fixedly arranged between each of the sliding blocks (52) and the fixing box (11).

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