Double-station polishing machine based on single-side driving clamping mechanism

Abstract

The utility model discloses a double-station polishing machine based on a single-side driving clamping mechanism, which comprises a base body, two stations are arranged on a table top of the base body, a polishing main shaft is arranged between the two stations in a rotating connection mode, and polishing wheels corresponding to the two stations are arranged at two ends of the polishing main shaft. The double-station polishing machine further comprises a polishing driving device used for driving the polishing main shaft to rotate. Each station is provided with a longitudinal sliding table, a swing driving device, a swing table and a single-side driving clamping mechanism. The ball bearing polishing device is provided with the polishing wheel rotating at a high speed and can drive a ball bearing workpiece to swing while rotating, so that mechanical polishing of a ball is achieved, operation efficiency and polishing quality are improved, labor intensity of operators is relieved, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model relates to a polishing machine, in particular to a double-station 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] The existing polishing methods have the following technical defects: 1. Manual polishing is slow and not suitable for mass production. 2. Polishing quality depends on the operator's skills and the quality consistency is poor. 3. Long-term manual work can easily lead to operator fatigue and pose safety hazards. Utility Model Content

[0005] The utility model proposes a double-station polishing machine based on a single-side drive clamping mechanism, the purpose of which is to realize the mechanized operation of ball shaft polishing and solve the problems of low efficiency, poor quality and high labor intensity caused by manual polishing.

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

[0007] A double-station polishing machine based on a single-side drive clamping mechanism comprises a base body, a table top of the base body is provided with two stations, a polishing spindle is installed between the two stations in a rotating connection manner, and polishing wheels corresponding to the two stations are installed at both ends of the polishing spindle; the double-station polishing machine also comprises a polishing drive device for driving the polishing spindle to rotate;

[0008] Each workstation is equipped with a longitudinal slide, a swing drive device, a swing table and a single-side drive clamping mechanism;

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

[0010] The swing table is directly or indirectly mounted on the longitudinal slide;

[0011] The swing drive device is used to drive the swing table to rotate horizontally relative to the longitudinal slide table;

[0012] The unilaterally driven clamping mechanism is installed on the swing table and is used to clamp the ball shaft workpiece and drive the ball shaft workpiece to rotate; the unilaterally driven clamping mechanism includes 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 includes a shell, a rotating sleeve, a transmission key and a push rod, the shell is fixedly arranged relative to the swing table, the rotating sleeve is installed in the shell 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 transmission-connected to the rotary driving device; the cylinder body of the first telescopic cylinder is fixedly arranged relative to the swing table, and 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.

[0013] As a further improvement of the double-station polishing machine based on the single-side drive clamping mechanism: the swing drive device is a second telescopic cylinder, one end of the second telescopic cylinder is rotatably connected to the longitudinal slide, and the other end is rotatably connected to the swing table.

[0014] As a further improvement of the double-station polishing machine based on the single-side drive clamping 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.

[0015] As a further improvement of the double-station polishing machine based on the single-side driven clamping mechanism: the swing table is provided with a supporting device for placing the ball shaft workpiece.

[0016] As a further improvement of the double-station polishing machine based on the single-side drive clamping 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 that cooperates with the screw rod of the bracket; a recessed platform is provided on the top of the bracket.

[0017] As a further improvement of the double-station polishing machine based on the single-side drive clamping 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.

[0018] As a further improvement of the double-station polishing machine based on the single-side drive clamping 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.

[0019] As a further improvement of the double-station polishing machine based on the single-side drive clamping mechanism: the cylinder body of the first telescopic cylinder is fixedly connected to the (10-1) through a connecting rod.

[0020] As a further improvement of the double-station polishing machine based on the single-side drive clamping mechanism: the polishing drive device is a second motor fixedly arranged relative to the base, 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 has a high-speed rotating polishing wheel, which can also drive the ball shaft workpiece to swing while rotating, thereby realizing the mechanized polishing of the sphere, improving the operating efficiency and polishing quality, reducing the labor intensity of the operator, and eliminating safety hazards.

[0023] 2. The utility model adopts a double-station form, which can polish two ball shafts at the same time, further improving work efficiency and equipment utilization and reducing costs.

[0024] 3. The clamping mechanism realizes the compound transmission of rotation and extension through the transmission key and the slide slot, thereby simplifying the structure of the rotating top side, so that the distance between the two stations can be further shortened, the structure is more compact, and the overhang length of the polishing spindle is also shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is one of the three-dimensional diagrams of the utility model;

[0026] Figure 2 for Figure 1 A partial enlarged view of part A;

[0027] Figure 3 This is the second stereogram of the utility model;

[0028] Figure 4 It is a horizontal vertical section view of the left station part;

[0029] Figure 5 It is a longitudinal vertical cross-sectional view of the left workstation part.

[0030] Reference numerals:

[0031] 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

[0032] 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.

[0033] like Figures 1 to 5 A double-station polishing machine based on a single-side drive clamping mechanism includes a base 1 (workbench), on which two left and right stations are arranged, a polishing spindle 15 is installed between the two stations by a rotating connection, and polishing wheels 12 corresponding to the two stations are installed at both ends of the polishing spindle 15.

[0034] The double-station 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, driving the polishing wheel to rotate at high speed.

[0035] Each workstation is provided with a longitudinal slide 3, a swing drive device, a swing table 14 and a single-side drive clamping mechanism.

[0036] 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.

[0037] The swing table 14 can be directly or indirectly mounted on the longitudinal slide 3:

[0038] When the swing table 14 is directly mounted on the longitudinal slide table 3 by a rotational connection, the left and right positions of the swing table 14 remain unchanged when the swing table 14 swings.

[0039] However, in this embodiment, 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 provided 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 provided 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, the ball shaft workpiece 11 is first placed on the bracket 27, and then the first telescopic cylinder 7 is actuated 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 actuated 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 swing axis passes through the center of the sphere, thereby achieving spherical polishing.

[0048] If the swing table 14 is directly mounted on the longitudinal slide 3, the swing axis of the swing table 14 remains fixed. If the swing table 14 is mounted on the longitudinal slide 3 via the transverse slide 5, the swing table 14 and the ball shaft workpiece 11 will also move 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 is fully utilized, the wear is reduced, and the polishing is more uniform.

[0049] 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 double-station polishing machine based on a single-side drive clamping mechanism, comprising a base (1), characterized in that: Two workstations are arranged on the table of the base (1), a polishing spindle (15) is installed between the two workstations in a rotatable connection manner, and polishing wheels (12) corresponding to the two workstations are installed at both ends of the polishing spindle (15); the double-station polishing machine also includes a polishing drive device (20) for driving the polishing spindle (15) to rotate; Each workstation is provided with a longitudinal slide (3), a swing drive device, a swing table (14) and a single-side drive clamping mechanism; The longitudinal slide table (3) is mounted on the table surface via a longitudinal guide rail (2); The swing table (14) is directly or indirectly mounted on the longitudinal slide table (3); The swing drive device is used to drive the swing table (14) to rotate horizontally relative to the longitudinal slide table (3); The single-side driven clamping mechanism is mounted on a swing table (14) and is used to clamp a ball shaft workpiece (11) and drive the ball shaft workpiece (11) to rotate; the single-side driven 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 arranged relative to the swing table (14). The rotating sleeve (10-2) is fixedly arranged in the housing (10-1) via 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 transmission-connected to the rotary drive device (6); 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) via 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).

2. The double-station polishing machine based on the single-side drive clamping 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).

3. The double-station polishing machine based on the single-side drive clamping 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.

4. The double-station polishing machine based on the single-side drive clamping 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).

5. The double-station polishing machine based on the single-side drive clamping mechanism according to claim 4, 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).

6. The double-station polishing machine based on the single-side drive clamping mechanism according to claim 1, 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).

7. The double-station polishing machine based on a single-side drive clamping mechanism according to claim 1, 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).

8. The double-station polishing machine based on a single-side drive clamping mechanism according to claim 1, characterized in that: The cylinder body of the first telescopic cylinder (7) is fixedly connected to the housing (10-1) via a connecting rod (9).

9. The double-station polishing machine based on a single-side drive clamping 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).

Images