Omnibearing automatic polishing equipment for pin shaft

Abstract

The invention relates to all-dimensional automatic polishing equipment for a pin shaft. The all-dimensional automatic polishing equipment comprises a polishing motor, a rotating shaft, a shaft sleeve, a driving mechanism, a polishing wheel and a jig, the output end of the polishing motor is connected with the end of the rotating shaft, the rotating shaft is sleeved with the shaft sleeve, the shaft sleeve can synchronously rotate along with the rotating shaft, and the driving mechanism is connected with the shaft sleeve and drives the shaft sleeve to horizontally reciprocate along the rotating shaft while rotating along with the rotating shaft. The polishing wheel is fixedly arranged on the shaft sleeve in a sleeving mode, the jig is located on the side, away from the driving mechanism, of the rotating shaft, a rotatable pin shaft to be polished is clamped on the jig, the pin shaft and the rotating shaft are arranged in parallel, the position of the pin shaft corresponds to the position of the polishing wheel, and the polishing wheel is arranged on the rotating shaft. And further, the polishing wheel is used for polishing the pin shaft in the radial direction and the axial direction through rotation and horizontal movement. The full-automatic pin shaft polishing machine has the beneficial effects that the pin shaft is automatically polished in all directions, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of mechanical processing, and in particular to an all-round automatic polishing device for a pin shaft. Background Art

[0002] Polishing is an essential process for pin production. Polishing generally uses a polishing wheel to grind the surface of the pin to achieve the required surface smoothness. Existing polishing machines generally polish the pin in the radial direction through a rotating polishing wheel. For the axial polishing of the pin, manual relative feeding of the polishing wheel is required, that is, after polishing for a certain period of time, the pin fixture needs to be manually adjusted so that the pin fixture moves a certain distance along the axial direction of the pin. The polishing process requires the above-mentioned multiple manual feeding operations to achieve all-round polishing of the pin. The above method is time-consuming and labor-intensive, and the production efficiency is low. Summary of the invention

[0003] In summary, in order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an all-round automatic polishing device for a pin shaft.

[0004] The technical solution of the present invention for solving the above technical problems is as follows: a pin shaft all-round automatic polishing equipment, including a polishing motor, a rotating shaft, a sleeve, a driving mechanism, a polishing wheel and a jig; the output end of the polishing motor is connected to the end of the rotating shaft, the sleeve is sleeved on the rotating shaft, and the sleeve can rotate synchronously with the rotating shaft, the driving mechanism is connected and drives the sleeve to reciprocate horizontally along the rotating shaft while rotating with the rotating shaft; the polishing wheel is fixedly sleeved on the sleeve, the jig is located on the side of the rotating shaft away from the driving mechanism, a rotatable pin shaft to be polished is clamped on the jig, and the pin shaft is arranged parallel to the rotating shaft, the position of the pin shaft corresponds to the position of the polishing wheel, and then the polishing wheel polishes the pin shaft radially and axially respectively through rotation and horizontal movement.

[0005] The beneficial effects of the present invention are: automatic all-round polishing of the pin shaft greatly improves the production efficiency.

[0006] On the basis of the above technical solution, the present invention can also make the following further improvements:

[0007] Furthermore, the upper, lower, front and rear sides of the middle part of the rotating shaft are respectively provided with splines protruding outwards, the sleeve is cylindrical, and the inner wall of the sleeve is provided with key grooves corresponding to the splines one by one, and the sleeve is mounted on the rotating shaft through the engagement of the splines and the key grooves; annular plates are fixed at both ends of the sleeve, and a circle of grooves with an opening facing outwards is provided on the annular plate, and a circle of clamping grooves are respectively provided on the two inner walls of the groove.

[0008] The beneficial effect of adopting the above further technical solution is that the shaft sleeve can both rotate synchronously with the rotating shaft and move horizontally along the rotating shaft.

[0009] Further, the driving mechanism comprises a driving member, a frame, a slider and a disc; the driving member is in the shape of a semicircular ring and there are two of them, each of which is located in one of the grooves, and both sides of the driving member are inserted into the corresponding slots; the two driving members are fixedly connected by a connecting block;

[0010] The frame is located on the side of the rotating shaft away from the fixture, the slider is horizontally slidable on the frame, the disc is rotatable at the end of the frame, and the rotation center of the disc is located on the extension line of the motion trajectory of the slider, the disc is hinged to the slider through a connecting rod to form a crank slider mechanism; a driving motor connected to and driving the disc to rotate is also provided on the frame;

[0011] The sliding block is connected through the connecting block and drives the driving member to reciprocate horizontally, thereby causing the shaft sleeve to reciprocate horizontally along the rotating shaft synchronously.

[0012] The beneficial effect of adopting the above further technical solution is that while the sleeve rotates with the shaft, the sleeve is driven to reciprocate horizontally along the shaft, thereby achieving radial and axial polishing of the pin shaft.

[0013] Furthermore, two baffles are fixed on the rotating shaft, and the spline is located between the two baffles.

[0014] The beneficial effect of adopting the above further technical solution is: limiting the sleeve from sliding on the portion of the shaft where the spline is arranged.

[0015] Furthermore, the jig includes a splint, a screw and a turntable; there are two splints, which are relatively arranged on the side of the rotating shaft away from the driving mechanism, the screw thread penetrates the side of the two splints away from the rotating shaft, and nuts are respectively mounted on the screw at positions corresponding to the two sides of the two splints; there are two turntables, which are rotatably installed on the side of one of the splints away from the screw, and the two turntables are relatively arranged, and the pin to be polished is clamped between the two turntables.

[0016] The beneficial effect of adopting the above further technical solution is: the pin shaft can be positioned, and after positioning, it can be rotated to radially polish the pin shaft.

[0017] Furthermore, the fixture also includes a rotating pin, and a bearing assembly is provided at a position of the clamping plate corresponding to the rotating disk. One end of the rotating pin is rotatably mounted on the bearing assembly, and the other end of the rotating pin is fixedly connected to the corresponding rotating disk.

[0018] The beneficial effect of adopting the above further technical solution is that the pin shaft can be rotated after being positioned to perform radial polishing on the pin shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of the present invention without the crank slider mechanism;

[0020] Figure 2 It is a front view schematic diagram of the present invention after removing the fixture, the crank slider mechanism and the driving mechanism;

[0021] Figure 3 is a side view schematic diagram of the rotating shaft;

[0022] Figure 4 is a schematic side view of the shaft sleeve;

[0023] Figure 5 is a cross-sectional schematic diagram of the shaft sleeve;

[0024] Figure 6 It is a schematic diagram of the assembly of the shaft sleeve, the polishing wheel and the driving part;

[0025] Figure 7 for Figure 6 A magnified image

[0026] Figure 8 It is a schematic diagram of the crank slider mechanism described in the present invention;.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Polishing motor, 2. Rotating shaft, 3. Bushing, 4. Polishing wheel, 5. Pin, 6. Spline, 7. Keyway, 8. Ring plate, 9. Groove, 10. Slot, 11. Driving member, 12. Frame, 13. Slider, 14. Disc, 15. Connecting block, 16. Connecting rod, 17. Baffle, 18. Clamp, 19. Screw, 20. Turntable, 21. Nut, 22. Turnpin, 23. Bearing assembly. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0030] like Figure 1 and 2As shown, a pin shaft all-round automatic polishing device comprises a polishing motor 1, a rotating shaft 2, a sleeve 3, a driving mechanism, a polishing wheel 4 and a fixture. The output end of the polishing motor 1 is connected to the end of the rotating shaft 2, the sleeve 3 is sleeved on the rotating shaft 2, and the sleeve 3 can rotate synchronously with the rotating shaft 2, and the driving mechanism is connected to and drives the sleeve 3 to reciprocate horizontally along the rotating shaft 2 while rotating with the rotating shaft 2. The polishing wheel 4 is fixedly sleeved on the sleeve 3, and the fixture is located on the side of the rotating shaft 2 away from the driving mechanism. The rotatable pin shaft 5 to be polished is clamped on the fixture, and the pin shaft 5 is arranged parallel to the rotating shaft 2. The position of the pin shaft 5 corresponds to the position of the polishing wheel 4, and then the polishing wheel 4 polishes the pin shaft 5 radially and axially respectively through rotation and horizontal movement.

[0031] like Figure 3 , 4 As shown in Figures 5 and 6, the four sides of the middle of the shaft 2, the top and bottom, the front and the back, are respectively provided with splines 6 protruding outward. Two baffles 17 are fixed on the shaft 2, and the spline 6 is located between the two baffles 17. The sleeve 3 is cylindrical, and a keyway 7 corresponding to the spline 6 is provided on the inner wall of the sleeve 3. The sleeve 3 is mounted on the shaft 2 through the engagement of the spline 6 and the keyway 7. Annular plates 8 are fixed at both ends of the sleeve 3, and a circle of grooves 9 with an opening facing outward is provided on the annular plate 8, and a circle of clamping grooves 10 are respectively provided on the two inner walls of the groove 9.

[0032] like Figure 6 and 7 As shown, the driving mechanism includes a driving member 11, a frame 12, a slider 13 and a disc 14. The driving member 11 is in the shape of a semicircular ring and there are two of them. Each of the driving members 11 is in one of the grooves 9, and the two sides of the driving member 11 are snapped into the corresponding slots 10. The two driving members 11 are fixedly connected by a connecting block 15. The frame 12 is located on the side of the rotating shaft 2 away from the jig, the slider 13 is horizontally slidable on the frame 12, the disc 14 is rotatably located at the end of the frame 12, and the rotation center of the disc 14 is on the extension line of the motion trajectory of the slider 13. The disc 14 is hinged to the slider 13 through a connecting rod 16 to form a crank slider 13 mechanism. A driving motor connected to and driving the disc 14 to rotate is also provided on the frame 12.

[0033] like Figure 8 As shown, the slider 13 is connected via the connecting block 15 and drives the driving member 11 to reciprocate horizontally, thereby causing the shaft sleeve 3 to reciprocate horizontally along the rotating shaft 2 synchronously.

[0034] like Figure 1As shown, the jig includes a clamping plate 18, a screw 19 and a turntable 20. There are two clamping plates 18, which are arranged oppositely on the side of the rotating shaft 2 away from the driving mechanism. The screw 19 threads through the two clamping plates 18 on the side away from the rotating shaft 2, and nuts 21 are respectively mounted on the screw 19 at positions corresponding to the two sides of the two clamping plates 18. There are two turntables 20, which are rotatably mounted on the side of one of the clamping plates 18 away from the screw 19, and the two turntables 20 are arranged oppositely, and the pin 5 to be polished is clamped between the two turntables 20. The jig also includes a turnpin 22, and a bearing assembly 23 is provided at the position of the clamping plate 18 corresponding to the turntable 20, one end of the turnpin 22 is rotatably mounted on the bearing assembly 23, and the other end of the turnpin 22 is fixedly connected to the corresponding turntable 20.

[0035] When polishing, first adjust the distance between the two turntables 20 by the screw 19 and the nut 21 according to the length of the pin 5, so that the two turntables 20 can clamp the pin 5 to be polished. The specific operation is: loosen the nut 19 from the screw 19, adjust the distance between the two clamping plates 18 to synchronously adjust the distance between the two turntables 20, and after the distance between the two turntables 20 is adjusted, tighten the nut. Then, start the polishing motor 1 and the drive motor, the polishing motor 1 drives the rotating shaft 2 to rotate, and the drive motor on the frame 12 drives the disc 14 to rotate. The rotation of the rotating shaft 2 drives the sleeve 3 to rotate through the cooperation of the spline 6 and the keyway 7, and the rotation of the sleeve 3 drives the polishing wheel 4 to rotate. Since the driving member 11 is a semicircular block, and the two sides of the driving member 11 are clamped in the groove 10 of the annular plate 8 on the sleeve 3, the rotation of the sleeve 3 will not drive the driving member 11 to rotate. The disc 14 and the slider 13 form a crank mechanism, and its rotation drives the slider 13 to reciprocate horizontally. The slider 13 is connected to the driving member 11, and the driving member 11 will reciprocate horizontally with the slider 13. The driving member 11 will not rotate with the sleeve 3, but the horizontal reciprocating movement of the driving member 11 will drive the sleeve 3 to reciprocate horizontally. In summary, when the polishing motor 1 and the driving motor are started, the sleeve 3 will rotate and reciprocate horizontally along the rotating shaft 2 at the same time, thereby causing the polishing wheel 4 on the sleeve 3 to rotate and reciprocate horizontally at the same time. In addition, due to the pin 5 positioned by the fixture, it is rotatable under the action of the rotating pin 22 and the bearing assembly 23. The outer peripheral edge of the polishing wheel 4 is a brush strip or other material that can be used for polishing. When the polishing wheel 4 rotates to polish the pin 5, that is, radial polishing, the pin 5 will rotate under the action of friction, and the speed of the pin 5 is less than that of the polishing wheel 4 (the polishing wheel 4 is driven by the polishing motor 1), thereby achieving radial complete polishing of the pin 5. When the polishing wheel 4 reciprocates horizontally to polish the pin 5, i.e., axially polishes, since the polishing wheel 4 reciprocates horizontally along the rotating shaft 2 / pin 5, and the pin 5 also rotates, the polishing wheel 4 can also achieve complete axial polishing of the pin 5. Finally, the polishing wheel can achieve complete radial and axial polishing of the pin 5, and it is completed automatically.

[0036] The crank mechanism formed by the disk 14, the slider 13 and the connecting rod 16 is adjusted according to the axial length of the pin 5 so that the maximum horizontal sliding distance of the slider 13 matches the length of the pin 5. In addition, the length of the pin 5 should be less than the distance between the two baffles 17, that is, less than the length of the spline 6.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pin shaft all-round automatic polishing equipment, characterized in that: The invention comprises a polishing motor (1), a rotating shaft (2), a sleeve (3), a driving mechanism, a polishing wheel (4) and a fixture; the output end of the polishing motor (1) is connected to the end of the rotating shaft (2); the sleeve (3) is sleeved on the rotating shaft (2), and the sleeve (3) can rotate synchronously with the rotating shaft (2); the driving mechanism is connected to and drives the sleeve (3) to reciprocate horizontally along the rotating shaft (2) while rotating with the rotating shaft (2); the polishing wheel (4) is fixedly sleeved on the sleeve (3); the fixture is located on a side of the rotating shaft (2) away from the driving mechanism; a rotatable pin shaft (5) to be polished is clamped on the fixture; the pin shaft (5) is arranged parallel to the rotating shaft (2); the position of the pin shaft (5) corresponds to the position of the polishing wheel (4), and the polishing wheel (4) polishes the pin shaft (5) radially and axially respectively through rotation and horizontal movement.

2. The pin shaft all-round automatic polishing equipment according to claim 1 is characterized in that: The four sides of the middle part of the rotating shaft (2) are respectively provided with splines (6) protruding outwards; the shaft sleeve (3) is cylindrical; keyways (7) corresponding to the splines (6) are provided on the inner wall of the shaft sleeve (3); the shaft sleeve (3) is mounted on the rotating shaft (2) through the engagement between the splines (6) and the keyways (7); an annular plate (8) is fixed at both ends of the shaft sleeve (3); a circle of grooves (9) opening outwards is provided on the annular plate (8); and a circle of clamping grooves (10) are respectively provided on the two inner walls of the groove (9) facing each other.

3. The pin shaft all-round automatic polishing equipment according to claim 2 is characterized in that: The driving mechanism comprises a driving member (11), a frame (12), a slider (13) and a disc (14); the driving member (11) is in the shape of a semicircular ring and there are two of them, each of the driving members (11) is located in one of the grooves (9), and two sides of the driving member (11) are inserted into corresponding slots (10); the two driving members (11) are fixedly connected by a connecting block (15); The frame (12) is located on a side of the rotating shaft (2) away from the fixture, the slider (13) is horizontally slidable on the frame (12), the disc (14) is rotatably located at the end of the frame (12), and the rotation center of the disc (14) is located on the extension line of the motion trajectory of the slider (13), and the disc (14) is hinged to the slider (13) through a connecting rod (16) to form a crank slider (13) mechanism; a driving motor connected to and driving the disc (14) to rotate is also provided on the frame (12); The sliding block (13) is connected to the driving member (11) via the connecting block (15) and drives the driving member (11) to perform horizontal reciprocating motion, thereby causing the shaft sleeve (3) to synchronously perform horizontal reciprocating motion along the rotating shaft (2).

4. The pin shaft all-round automatic polishing equipment according to claim 2 is characterized in that: Two baffles (17) are fixed on the rotating shaft (2), and the spline (6) is located between the two baffles (17).

5. The pin shaft all-round automatic polishing equipment according to any one of claims 1 to 4, characterized in that: The jig comprises a clamping plate (18), a screw rod (19) and a turntable (20); there are two clamping plates (18), which are arranged opposite to each other on the side of the rotating shaft (2) away from the driving mechanism, the screw rod (19) is threadedly passed through the two clamping plates (18) on the side away from the rotating shaft (2), and nuts (21) are respectively mounted on the screw rod (19) at positions corresponding to the two sides of the two clamping plates (18); there are two turntables (20), which are respectively rotatably mounted on the side of one of the clamping plates (18) away from the screw rod (19), and the two turntables (20) are arranged opposite to each other, and the pin shaft (5) to be polished is clamped between the two turntables (20).

6. The pin shaft all-round automatic polishing equipment according to claim 4 is characterized in that: The fixture further comprises a rotating pin (22), a bearing assembly (23) is provided at a position of the clamping plate (18) corresponding to the rotating disk (20), one end of the rotating pin (22) is rotatably mounted on the bearing assembly (23), and the other end of the rotating pin (22) is fixedly connected to the corresponding rotating disk (20).

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