Ball bearing polishing machine based on swing translation mechanism

Abstract

The utility model discloses a ball bearing polishing machine based on a swing translation mechanism, which comprises a base body, at least one station is arranged on the table top of the base body, a polishing main shaft is arranged beside the station in a rotating connection mode, and a polishing wheel corresponding to the station is arranged on the polishing main shaft. The polishing machine further comprises a polishing driving device used for driving the polishing main shaft to rotate. A longitudinal sliding table, a swing translation mechanism and a clamping mechanism are arranged on the station; the longitudinal sliding table is mounted on the table top through a longitudinal guide rail; the swing translation mechanism comprises a transverse sliding table, a swing driving device and a swing table, and further comprises a mounting rack and a gear. According to the ball bearing polishing device, mechanical polishing can be achieved, the ball bearing workpiece can move left and right while swinging, the outer edge of the whole polishing wheel can participate in polishing, abrasion is relieved, and polishing is even and thorough.

Description

Technical Field

[0001] The utility model relates to a polishing machine. Background Art

[0002] The ball shaft is a key part of the automotive thrust rod assembly. Its performance directly affects the reliability of the vehicle suspension and axle connection and the safety, handling stability and durability of the vehicle. The middle of the ball shaft has a protruding sphere, which needs to have a very high surface finish to reduce friction and increase service life.

[0003] At present, the polishing of ball shafts is mainly done manually: one end of the ball shaft is clamped on a chuck connected to the main shaft, and the other end is clamped by a rotating center driven by a cylinder. During polishing, the main shaft drives the ball shaft to rotate through the chuck, and the polishing wheel is manually held for polishing.

[0004] Due to the low efficiency of traditional polishing methods, technicians in this field have begun to implement mechanized polishing. There are two main existing solutions for spherical surface polishing: one is to use a contoured polishing wheel for polishing while the ball axis workpiece rotates. Figure 1 However, this method has the problems of high customization cost of polishing wheels and inability to adapt to ball shafts of different diameters, and cannot meet the needs of processing large quantities of ball shaft workpieces with different specifications. Another method is that the ball shaft workpiece swings along the axis passing through its ball center while rotating, such as Figure 2 As shown, this method only requires the use of an ordinary polishing wheel, and the distance between the workpiece and the polishing wheel can be adjusted according to the diameter of the sphere. However, only the middle area of ​​the outer edge of the polishing wheel contacts the sphere, and the wear rate is fast. Moreover, since the polishing wheel has a certain width, it is necessary to ensure that the shafts on both sides of the sphere do not contact the polishing wheel during the swinging process. The swinging angle is limited, resulting in uneven and thorough polishing. Utility Model Content

[0005] The utility model provides a ball shaft polishing machine based on a swing translation mechanism, and its purpose is to solve the problems of fast wear of the polishing wheel and uneven polishing of the ball shaft workpiece during swing polishing.

[0006] The technical solution of this utility model is as follows:

[0007] A ball shaft polishing machine based on a swing translation mechanism comprises a base body, wherein at least one workstation is arranged on the table of the base body, a polishing spindle is installed beside the workstation by a rotation connection, and a polishing wheel corresponding to the workstation is installed on the polishing spindle; the polishing machine also comprises a polishing drive device for driving the polishing spindle to rotate;

[0008] The workstation is provided with a longitudinal slide, a swing translation mechanism and a clamping mechanism;

[0009] The longitudinal slide table is mounted on the table surface via longitudinal guide rails;

[0010] The swing translation mechanism comprises a transverse slide, a swing driving device and a swing table; the transverse slide is mounted on the longitudinal slide via a transverse guide rail, the swing table is mounted on the transverse slide via a rotation connection, and the swing driving device is used to drive the swing table to rotate horizontally relative to the longitudinal slide;

[0011] The swing translation mechanism also includes a rack mounted on the longitudinal slide and a gear meshing with the rack; a rotating shaft is mounted at the bottom of the swing platform, and the rotating shaft passes through the transverse slide and is connected to the gear;

[0012] The clamping mechanism is installed on the swing table and is used for clamping the ball shaft workpiece and driving the ball shaft workpiece to rotate.

[0013] As a further improvement of the ball shaft polishing machine based on the swing translation mechanism: the clamping mechanism comprises a first telescopic cylinder, a rotating connecting sleeve, a rotary driving device, a rotary-telescopic composite mechanism and a rotating top located on the opposite side of the rotary-telescopic composite mechanism; the rotary-telescopic composite mechanism comprises a housing, a rotating sleeve, a transmission key and a push rod, the housing is fixedly arranged relative to the swing table (4), the rotating sleeve is installed in the housing through a bearing, the transmission key is installed in the inner hole of the rotating sleeve and cooperates with the slide groove on the push rod; the rotating sleeve is also connected to the rotary driving device in a transmission manner; the cylinder body of the first telescopic cylinder is fixedly arranged relative to the swing table, the end of the telescopic rod is connected to the outer end of the push rod through a rotating connecting sleeve; the inner end of the push rod and the rotating top jointly clamp the ball shaft workpiece.

[0014] As a further improvement of the ball shaft polishing machine based on the swing translation mechanism: a positioning plate is also installed at the inner end of the push rod, and the positioning plate contacts the plane of the end of the ball shaft workpiece.

[0015] As a further improvement of the ball shaft polishing machine based on the swing translation mechanism: the rotary drive device is a first motor, a driving sprocket is installed on the output shaft of the first motor, a driven sprocket is connected to the rotating sleeve, and the driving sprocket and the driven sprocket are connected by a transmission chain.

[0016] As a further improvement of the ball shaft polishing machine based on the swing translation mechanism: the swing table is provided with a supporting device for placing the ball shaft workpiece.

[0017] As a further improvement of the ball shaft polishing machine based on the swing translation mechanism: the supporting device includes a supporting sleeve fixedly mounted on the swing table, and also includes a bracket whose lower end screw rod cooperates with the top threaded hole of the supporting sleeve and a nut cooperates with the screw rod of the bracket; a recessed platform is provided on the top of the bracket.

[0018] As a further improvement of the ball shaft polishing machine based on the swing translation mechanism: the swing driving device is a second telescopic cylinder, one end of the second telescopic cylinder is rotationally connected to the longitudinal slide table, and the other end is rotationally connected to the swing table.

[0019] As a further improvement of the ball shaft polishing machine based on the swing translation mechanism: the table top is also equipped with a third telescopic cylinder for driving the longitudinal slide to move forward and backward and a limit block for constraining the extreme position of the longitudinal slide.

[0020] As a further improvement of the ball shaft polishing machine based on the swing translation mechanism: the polishing drive device is a second motor fixedly arranged relative to the base body, and the second motor is connected to the polishing spindle through a transmission belt.

[0021] Compared with the prior art, the utility model has the following positive effects:

[0022] 1. The utility model can not only realize mechanized polishing, but also add a swing translation mechanism, which can move left and right while the ball shaft workpiece swings, so that the outer edge of the entire polishing wheel can participate in polishing and reduce wear.

[0023] 2. When the ball shaft workpiece swings to the extreme angle, it is close to the edge of the polishing wheel, avoiding the problem of mutual interference with the polishing wheel. The swingable angle is larger, and the polishing is more uniform and thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of polishing using a profile polishing wheel;

[0025] Figure 2 A schematic diagram of an existing swing polishing method;

[0026] Figure 3 It is a schematic diagram of using the utility model to perform swing translation polishing;

[0027] Figure 4 It is one of the three-dimensional diagrams of the utility model;

[0028] Figure 5 for Figure 4 A partial enlarged view of part A;

[0029] Figure 6 This is the second stereogram of the utility model;

[0030] Figure 7 It is a horizontal vertical section view of the left station part;

[0031] Figure 8 It is a longitudinal vertical cross-sectional view of the left workstation part.

[0032] Reference numerals:

[0033] 1. Base, 2. Longitudinal guide rail, 3. Longitudinal slide, 4. Transverse guide rail, 5. Transverse slide, 6. Rotary drive device, 7. First telescopic cylinder, 8. Rotating connecting sleeve, 9. Connecting rod, 10. Rotary-telescopic composite mechanism, 11. Ball shaft workpiece, 12. Polishing wheel, 13. Rotating center, 14. Swinging table, 15. Polishing spindle, 16. Second telescopic cylinder, 17. Third telescopic cylinder, 18. Limit block, 19. Transmission chain, 20. Polishing drive device, 21. Transmission belt, 22. Rack, 23. Gear, 24. Rotating shaft, 25. Support sleeve, 26. Nut, 27. Bracket, 10-1. Shell, 10-2. Rotating sleeve, 10-3. Transmission key, 10-4. Push rod, 10-5. Driven sprocket. DETAILED DESCRIPTION

[0034] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0035] like Figures 4 to 8 A ball shaft polishing machine based on a swing translation mechanism includes a base body 1 (worktable), and at least one polishing station is arranged on the table surface of the base body 1. In this embodiment, two left and right stations are arranged, and a polishing spindle 15 is installed between the two stations by a rotation connection. The two ends of the polishing spindle 15 are installed with polishing wheels 12 corresponding to the two stations.

[0036] The polishing machine also includes a polishing drive device 20 for driving the polishing spindle 15 to rotate. In this embodiment, the polishing drive device 20 is a second motor fixedly arranged on the rear side of the base 1, and the second motor is connected to the middle part of the polishing spindle 15 through a transmission belt 21 to drive the polishing wheel to rotate at high speed.

[0037] Each workstation is provided with a longitudinal slide 3, a swing drive device, a swing table 14 and a single-side drive clamping mechanism.

[0038] The longitudinal slide 3 is installed on the table through the longitudinal guide rail 2 to drive the workpiece to approach and move away from the polishing wheel 12. A third telescopic cylinder 17 for driving the longitudinal slide 3 to move forward and backward and a limit block 18 for constraining the extreme position of the longitudinal slide 3 are also installed on the table.

[0039] The swing table 14 is indirectly mounted on the longitudinal slide 3 through the transverse guide rail 4 and the transverse slide 5: the transverse slide 5 is mounted on the longitudinal slide 3 through the transverse guide rail 4, the swing table 14 is mounted on the transverse slide 5 through a rotation connection, and an end bearing is arranged between the swing table 14 and the transverse slide 5. Furthermore, it also includes a rack 22 mounted on the longitudinal slide 3 and a gear 23 meshing with the rack 22, a rotating shaft 24 is installed at the bottom of the swing table 14, the rotating shaft 24 passes through the through hole of the transverse slide 5 and is connected to the gear 23, and a deep groove ball bearing is arranged between the rotating shaft 24 and the transverse slide 5. The transverse slide 5, the swing drive device, the swing table 14, the rack 22 and the gear 23 constitute a swing translation mechanism. When the swing table 14 swings, under the action of the rack 22 and the gear 23, the swing table 14 will also move left and right synchronously with the transverse slide 5.

[0040] The swing drive device is used to drive the swing table 14 to rotate horizontally relative to the longitudinal slide 3. In this embodiment, the swing drive device is a second telescopic cylinder 16 (cylinder), one end of the second telescopic cylinder 16 is rotatably connected to the longitudinal slide 3, and the other end is rotatably connected to the swing table 14.

[0041] The single-side driven clamping mechanism is installed on the swing table 14 and is used to clamp the ball shaft workpiece 11 and drive the ball shaft workpiece 11 to rotate.

[0042] The single-side drive clamping mechanism includes a first telescopic cylinder 7, a rotating connecting sleeve 8, a rotary drive device 6, a rotary-telescopic composite mechanism 10, and a rotating top 13 located on the opposite side of the rotary-telescopic composite mechanism 10. The rotary-telescopic composite mechanism 10 includes a housing 10-1, a rotating sleeve 10-2, a transmission key 10-3, and a push rod 10-4. The housing 10-1 is fixedly arranged relative to the swing table 14, the rotating sleeve 10-2 is installed in the housing 10-1 through a bearing, and the transmission key 10-3 is installed in the inner hole of the rotating sleeve 10-2 and cooperates with the slide groove on the push rod 10-4. The rotating sleeve 10-2 is also connected to the rotary drive device 6 in a transmission manner. The first telescopic cylinder 7 is a cylinder, and a connecting rod 9 is installed on the cylinder body of the first telescopic cylinder 7. The inner end of the connecting rod 9 is welded to the housing 10-1. The end of the telescopic rod of the first telescopic cylinder 7 is connected to the outer end of the push rod 10-4 through a rotating connecting sleeve 8 (with a bearing inside). The inner end of the push rod 10 - 4 and the rotating center 13 jointly clamp the ball shaft workpiece 11 .

[0043] Furthermore, a positioning plate is installed at the inner end of the push rod 10-4, and the positioning plate contacts the plane of the end of the ball shaft workpiece 11 to ensure that the ball shaft workpiece 11 rotates synchronously with the push rod 10-4.

[0044] Furthermore, the rotary drive device 6 is a first motor, a driving sprocket is installed on the output shaft of the first motor, a driven sprocket 10 - 5 is connected to the rotating sleeve 10 - 2 , and the driving sprocket and the driven sprocket 10 - 5 are connected by a transmission chain 19 .

[0045] This mechanism can realize the movement drive and rotation drive of the ejector pin 10 - 4 at the same time, so that the driving mechanism is arranged outside the workstation and the structure on one side of the rotating ejector pin 13 is simplified.

[0046] Furthermore, a support device for placing the ball shaft workpiece 11 is provided on the swing table 14. The support device includes a support sleeve 25 fixedly mounted on the swing table 14, a bracket 27 whose lower end screw rod matches the top threaded hole of the support sleeve 25, and a nut 26 matched with the screw rod of the bracket 27; a concave platform is provided on the top of the bracket 27. After loosening the nut 26, the bracket 27 can be rotated to adjust its height.

[0047] During polishing, first place the ball shaft workpiece 11 on the bracket 27, then the first telescopic cylinder 7 is activated to clamp the ball shaft workpiece 11, and then the rotary drive device 6 is started to drive the push rod 10-4 to rotate, and the push rod 10-4 drives the ball shaft workpiece 11 to rotate at high speed. Then the polishing drive device 20 is started, and the polishing wheel 12 starts to rotate. After that, the third telescopic cylinder 17 is activated to push the longitudinal slide 3 toward the polishing wheel 12. After reaching the specified position, the second telescopic cylinder 16 starts to reciprocate, so that the swing table 14 drives the ball shaft workpiece 11 to swing, and the axis of the swing passes through the center of the sphere, thereby realizing spherical polishing. While swinging, as Figure 3 The swing table 14 moves left and right synchronously under the action of the rack 22 and the gear 23, so that the entire outer edge of the polishing wheel can participate in polishing, reducing wear, and when the ball shaft workpiece swings to the extreme angle, it is close to the edge of the polishing wheel, avoiding the problem of mutual interference with the polishing wheel, and the swing angle is larger, and the polishing is more uniform and thorough.

[0048] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. The scope of the present invention is defined by the claims rather than the above description.

Claims

1. A ball shaft polishing machine based on an oscillating translation mechanism, comprising a base body (1), characterized in that: At least one workstation is provided on the table surface of the base (1), a polishing spindle (15) is mounted on the side of the workstation by means of a rotational connection, and a polishing wheel (12) corresponding to the workstation is mounted on the polishing spindle (15); the polishing machine further comprises a polishing drive device (20) for driving the polishing spindle (15) to rotate; The workstation is provided with a longitudinal slide (3), a swing translation mechanism and a clamping mechanism; The longitudinal slide table (3) is mounted on the table surface via a longitudinal guide rail (2); The swing translation mechanism comprises a transverse slide (5), a swing drive device and a swing table (14); the transverse slide (5) is mounted on the longitudinal slide (3) via a transverse guide rail (4); the swing table (14) is mounted on the transverse slide (5) via a rotational connection; the swing drive device is used to drive the swing table (14) to rotate horizontally relative to the longitudinal slide (3); The swing translation mechanism further comprises a rack (22) mounted on the longitudinal slide (3) and a gear (23) meshing with the rack (22); a rotating shaft (24) is mounted at the bottom of the swing platform (14), and the rotating shaft (24) passes through the transverse slide (5) and is connected to the gear (23); The clamping mechanism is mounted on a swing table (14) and is used to clamp the ball shaft workpiece (11) and drive the ball shaft workpiece (11) to rotate.

2. The ball shaft polishing machine based on the swing translation mechanism according to claim 1, characterized in that: The clamping mechanism comprises a first telescopic cylinder (7), a rotating connecting sleeve (8), a rotary driving device (6), a rotary-telescopic composite mechanism (10), and a rotating top (13) located on the opposite side of the rotary-telescopic composite mechanism (10); the rotary-telescopic composite mechanism (10) comprises a housing (10-1), a rotating sleeve (10-2), a transmission key (10-3), and a top rod (10-4); the housing (10-1) is fixedly arranged relative to the swing table (14); the rotating sleeve (10-2) is mounted on the housing (10-1) via a bearing. 0-1), the transmission key (10-3) is installed in the inner hole of the rotating sleeve (10-2) and cooperates with the slide groove on the push rod (10-4); the rotating sleeve (10-2) is also connected to the rotary drive device (6) in a transmission manner; the cylinder body of the first telescopic cylinder (7) is fixedly arranged relative to the swing table (14), and the end of the telescopic rod is connected to the outer end of the push rod (10-4) through a rotating connecting sleeve (8); the inner end of the push rod (10-4) and the rotating top (13) jointly clamp the ball shaft workpiece (11).

3. The ball shaft polishing machine based on the swing translation mechanism as claimed in claim 2, characterized in that: A positioning plate is also installed at the inner end of the push rod (10-4), and the positioning plate is in contact with the plane of the end of the ball shaft workpiece (11).

4. The ball shaft polishing machine based on the swing translation mechanism as claimed in claim 2, characterized in that: The rotary drive device (6) is a first motor, a driving sprocket is mounted on the output shaft of the first motor, a driven sprocket (10-5) is connected to the rotating sleeve (10-2), and the driving sprocket and the driven sprocket (10-5) are connected via a transmission chain (19).

5. The ball shaft polishing machine based on the swing translation mechanism according to claim 1, characterized in that: A supporting device for placing the ball shaft workpiece (11) is provided on the swing table (14).

6. The ball shaft polishing machine based on the swing translation mechanism as claimed in claim 5, characterized in that: The support device comprises a support sleeve (25) fixedly mounted on the swing table (14), a bracket (27) whose lower end screw rod matches with the threaded hole at the top of the support sleeve (25), and a nut (26) matching with the screw rod of the bracket (27); a concave platform is provided at the top of the bracket (27).

7. The ball shaft polishing machine based on the swing translation mechanism according to claim 1, characterized in that: The swing drive device is a second telescopic cylinder (16), one end of the second telescopic cylinder (16) is rotatably connected to the longitudinal slide table (3), and the other end is rotatably connected to the swing table (14).

8. The ball shaft polishing machine based on the swing translation mechanism according to claim 1, characterized in that: The table top is also provided with a third telescopic cylinder (17) for driving the longitudinal slide (3) to move forward and backward, and a limit block (18) for constraining the longitudinal slide (3) to an extreme position.

9. The ball shaft polishing machine based on the swing translation mechanism according to any one of claims 1 to 8, characterized in that: The polishing drive device (20) is a second motor fixedly arranged relative to the base body (1), and the second motor is connected to the polishing spindle (15) through a transmission belt (21).

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