Swing type grinding rod superfinishing machine

Abstract

The utility model relates to the technical field of outer curved surface grinding, in particular to a swing type grinding rod superfinishing machine which comprises a base, an installation frame is arranged on the base, a grinding assembly is arranged on the installation frame and used for grinding the outer curved surface of a workpiece, a main shaft is arranged below the grinding assembly, and positioning assemblies are arranged on the two sides of the main shaft jointly. The positioning assembly is used for abutting against the end wall of a workpiece, the main shaft is sleeved with a hydraulic expansion sleeve, a hydraulic cavity is formed in the hydraulic expansion sleeve, and the hydraulic expansion sleeve is provided with an oil inlet nozzle and an oil outlet nozzle in a communicating mode. The method has the effect of reducing the superfinishing production cost of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of external curved surface grinding, in particular to a swing type grinding rod superfinishing machine. Background Art

[0002] In the production and processing of precision workpieces, high requirements are placed on the roughness of their outer curved surfaces. In order to reduce the friction coefficient of the outer curved surfaces of precision workpieces, special superfinishing machines are used for re-processing.

[0003] In the related art, a Chinese patent with authorization announcement number CN220296811U provides a swing-type grinding rod superfinishing machine, which includes a housing, a base is provided on the housing, a first cylinder is provided on the base, a first motor is installed on the telescopic end of the first cylinder, a grinding rod is installed on the output end of the first motor, a third motor is slidably arranged above the housing, a workpiece shaft is installed on the output end of the third motor, a workpiece and a grinding machine rolling head are sleeved on the workpiece shaft, a soft contact pressing mechanism is installed on the housing, and the soft contact pressing mechanism is arranged relative to the workpiece shaft. After the workpiece is sleeved on the workpiece shaft, the workpiece is horizontally moved to the bottom of the grinding rod, and the soft contact pressing mechanism and the grinding machine rolling head axially position the workpiece, and then the grinding rod is lowered to contact with the workpiece, and then driven by the first motor, the grinding rod is swing-rotated under the action of the rotational centripetal force, and at the same time, the third motor drives the workpiece to rotate through the workpiece shaft, so that the grinding rod performs superfinishing on the outer curved surface of the workpiece.

[0004] In the process of implementing the present application, the inventors discovered that there are at least the following problems in this technology: since the outer diameter of the workpiece shaft used to sleeve the workpiece is not easy to adjust according to the size of the inner ring of the workpiece, when processing workpieces with different inner ring sizes, only a workpiece shaft that is compatible with the inner ring of the workpiece can be made, and a grinding machine head that is compatible with the workpiece shaft can be made, which leads to an increase in the production cost of ultra-precision of the workpiece. Utility Model Content

[0005] In order to reduce the production cost of workpiece superfinishing, the present application provides a swing-type grinding rod superfinishing machine.

[0006] The present application provides an oscillating grinding rod superfinishing machine that adopts the following technical solution:

[0007] A swing-type grinding rod superfinishing machine comprises a base, a mounting frame is arranged on the base, a grinding assembly is arranged on the mounting frame, the grinding assembly is used for grinding the outer curved surface of a workpiece, a main shaft is arranged below the grinding assembly, positioning assemblies are arranged on both sides of the main shaft, the positioning assemblies are used for abutting against the end wall of the workpiece, a hydraulic expansion sleeve is sleeved on the main shaft, a hydraulic cavity is arranged inside the hydraulic expansion sleeve, and an oil inlet nozzle and an oil outlet nozzle are connected to the hydraulic expansion sleeve.

[0008] By adopting the above technical scheme, the workpiece sleeve is arranged on the hydraulic expansion sleeve on the outer side of the main shaft, and then hydraulic oil is injected into the hydraulic cavity through the oil inlet nozzle to make the hydraulic expansion sleeve expand evenly until the outer wall of the hydraulic expansion sleeve abuts between the main shaft and the inner wall of the workpiece, and the workpiece is not easy to shake along the circumferential direction of the main shaft. Then the positioning assembly abuts on both ends of the workpiece, so that the workpiece is not easy to move along the axial direction of the main shaft. Then the main shaft drives the workpiece to rotate, and at the same time the grinding assembly grinds the outer curved surface of the workpiece. The hydraulic expansion sleeve and the main shaft combination replace the workpiece shaft, so as to achieve the effect of facilitating adjustment according to the inner ring size of the workpiece. When processing workpieces with different inner ring sizes, it is only necessary to control the hydraulic oil injected into the hydraulic cavity, without replacing the remade workpiece shaft, thereby reducing the production cost of workpiece ultra-precision.

[0009] Preferably, a group of limit rings are sleeved on the main shaft, wherein one limit ring is located on one side of the hydraulic expansion sleeve, and the other limit ring is located on the other side of the hydraulic expansion sleeve, and the opposite surfaces of the limit rings abut against the end wall of the hydraulic expansion sleeve.

[0010] By adopting the above technical solution, the hydraulic expansion sleeve abuts between the limit rings, making it difficult for the hydraulic expansion sleeve to move along the axial direction of the main shaft, thereby reducing the movement of the hydraulic expansion sleeve under the extrusion of the workpiece and the main shaft, thereby reducing the possibility of rupture caused by the movement of the hydraulic expansion sleeve.

[0011] Preferably, an external thread groove is provided on the outer wall of the main shaft, and an internal thread groove is provided on the inner wall of the limiting ring. The external thread groove and the internal thread groove cooperate with each other, and the limiting ring is threadedly connected to the main shaft.

[0012] By adopting the above technical solution, the distance between the limit rings is adjusted by rotating the limit rings, and then when the lengths of the hydraulic expansion sleeves installed on the main shaft are different, the distance between the limit rings is adjusted so that the hydraulic expansion sleeves abut between the limit rings.

[0013] Preferably, the grinding assembly includes a grinding cylinder, a grinding motor and a grinding rod, the grinding cylinder is fixedly arranged on a mounting frame, the output shaft of the grinding cylinder faces the base, the grinding motor is fixedly arranged on the output shaft of the grinding cylinder, the output shaft of the grinding motor faces the base, and the output shaft of the grinding motor is detachably connected to the top end of the grinding rod.

[0014] By adopting the above technical solution, when the workpiece fixed under the grinding rod is ground, the output shaft of the grinding cylinder extends to drive the grinding motor and the grinding rod to descend until the grinding rod contacts the outer curved surface of the workpiece, and then the grinding motor starts to drive the grinding rod to rotate, and the grinding rod rotates to grind the outer curved surface of the workpiece.

[0015] Preferably, the positioning assembly includes a grinding machine head, a push rod and a rubber ring, the grinding machine head is fixedly arranged at one end of the main shaft, the grinding machine head is slidably connected to the base, the push rod is located at the other end of the main shaft, the push rod is slidably connected to the base, the push rod is arranged opposite to the main shaft, the push rod has an annular groove toward one end of the main shaft, and the rubber ring is arranged in the annular groove.

[0016] By adopting the above technical solution, when the hydraulic expansion sleeve abuts against the workpiece and the spindle, the grinding machine head moves to move the workpiece directly under the grinding rod, and then the push rod approaches the grinding machine head, so that one end of the workpiece abuts against the grinding machine head, and the other end of the workpiece abuts against the rubber ring, thereby restricting the two ends of the hydraulic expansion sleeve from moving along the axial direction of the spindle.

[0017] Preferably, the push rod has a clearance groove at one end facing the main shaft, and the main shaft is inserted into the clearance groove. A transverse cylinder is arranged at one end of the push rod away from the main shaft, and the output shaft of the transverse cylinder is rotatably connected to the push rod. A left support is fixedly arranged between the transverse cylinder and the base.

[0018] By adopting the above technical solution, after the transverse cylinder is started, the output shaft of the transverse cylinder drives the push rod to move, and the clearance groove on the push rod is provided for the main shaft to be inserted, so that the push rod and the main shaft are not easy to abut each other, reducing the situation where the main shaft restricts the movement of the push rod, and facilitating the push rod to abut against the workpiece.

[0019] Preferably, a right support is rotatably arranged at one end of the grinding machine head away from the main shaft, the right support is slidably connected to the base, a rotating motor is fixedly arranged on the side of the right support away from the grinding machine head, the output shaft of the rotating motor passes through the right support, and the output shaft of the rotating motor is fixedly connected to one end of the main shaft away from the push rod.

[0020] By adopting the above technical solution, the right support drives the grinding head to move, so that the grinding head drives the workpiece to move to just below the grinding rod. When the workpiece abuts between the grinding head and the push rod, the friction coefficient between the workpiece and the grinding head increases. When the rotating motor is started, the rotating motor drives the main shaft to rotate. Since the hydraulic expansion sleeve increases the friction coefficient between the workpiece and the main shaft, and the grinding head rotates synchronously with the main shaft, the workpiece rotates.

[0021] Preferably, a bracket is fixedly arranged on the base, a transverse motor is fixedly arranged on the bracket, a transverse screw is fixedly arranged on the output shaft of the transverse motor, the transverse screw is rotatably connected to the bracket, a transverse slide is fixedly arranged on the bracket, the transverse screw and the transverse slide are both parallel to the base, a transverse block is fixedly arranged at the bottom of the right support, the transverse slide passes through the transverse block, and the transverse block is threadedly connected to the transverse screw.

[0022] By adopting the above technical solution, after the transverse motor is started, the transverse motor drives the transverse screw to rotate, and the rotation of the transverse screw drives the transverse block to move along the transverse rod, and then the transverse rod drives the right support to move, thereby achieving the effect of moving the grinding machine rolling head.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a base, a mounting frame, a grinding assembly, a spindle, a positioning assembly, a hydraulic expansion sleeve, a hydraulic cavity, an oil inlet nozzle and an oil outlet nozzle, the hydraulic expansion sleeve and the spindle combination replace the workpiece shaft, so as to achieve the effect of being easy to adjust according to the inner ring size of the workpiece. When processing workpieces with different inner ring sizes, it is sufficient to control the hydraulic oil injected into the hydraulic cavity, without replacing the remade workpiece shaft, thereby reducing the production cost of workpiece ultra-precision;

[0025] 2. By setting a limit ring, the hydraulic expansion sleeve can be prevented from moving under the extrusion of the workpiece and the spindle, thereby reducing the possibility of rupture caused by the movement of the hydraulic expansion sleeve;

[0026] 3. By setting the external thread groove and the internal thread groove, the distance between the limit rings is adjusted so that hydraulic expansion sleeves of different lengths can abut between the limit rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional view of an oscillating grinding rod superfinishing machine in an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view showing the connection relationship between the main shaft and the hydraulic expansion sleeve in the embodiment of the present application.

[0029] Figure 3 It is a schematic diagram showing the connection relationship between the main shaft and the limit ring in the embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view showing the connection relationship between the grinding rod and the mounting frame in the embodiment of the present application.

[0031] Figure 5 It is a cross-sectional view showing the positional relationship between the grinding head and the push rod in the embodiment of the present application.

[0032] Figure 6 It is a cross-sectional view showing the connection relationship between the top rod and the left support in the embodiment of the present application.

[0033] Figure 7 It is a cross-sectional view showing the connection relationship between the right bracket and the transverse screw rod in the embodiment of the present application.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. base; 11. mounting frame; 12. workpiece; 2. grinding assembly; 21. grinding cylinder; 22. grinding motor; 23. grinding rod; 3. spindle; 31. external thread groove; 4. positioning assembly; 41. grinding head; 42. push rod; 421. annular groove; 422. clearance groove; 43. rubber ring; 5. hydraulic expansion sleeve; 51. hydraulic chamber; 52. oil inlet nozzle; 53. oil outlet nozzle; 6. transverse cylinder; 61. left support; 7. rotating motor; 71. right support; 8. transverse motor; 81. bracket; 82. transverse screw rod; 83. transverse slide rod; 84. transverse block; 9. limiting ring; 91. internal thread groove. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-7 This application is described in further detail.

[0036] The present application discloses a swing type grinding rod superfinishing machine. Figure 1 and Figure 2 , including a base 1, on which a mounting frame 11 is welded, and the mounting frame 11 is in an inverted L shape. A grinding assembly 2 is installed on the mounting frame 11, and the grinding assembly 2 is used to grind the outer curved surface of a workpiece 12. A spindle 3 is installed horizontally below the grinding assembly 2, and positioning assemblies 4 are installed on both sides of the spindle 3. The positioning assembly 4 is used to abut against the end wall of the workpiece 12. A hydraulic expansion sleeve 5 is sleeved on the spindle 3, and a hydraulic cavity 51 is arranged inside the hydraulic expansion sleeve 5. An oil inlet nozzle 52 and an oil outlet nozzle 53 are connected on the hydraulic expansion sleeve 5. The workpiece 12 is sleeved on the hydraulic expansion sleeve 5 on the outside of the spindle 3, and then hydraulic oil is injected into the hydraulic cavity 51 through the oil inlet nozzle 52, so that the hydraulic expansion sleeve 5 expands evenly until the outer wall of the hydraulic expansion sleeve 5 abuts between the spindle 3 and the inner wall of the workpiece 12, and the workpiece 12 is not easy to shake along the circumferential direction of the spindle 3. Then the positioning assembly 4 abuts against both ends of the workpiece 12, so that the workpiece 12 is not easy to move along the axial direction of the spindle 3. Then the spindle 3 drives the workpiece 12 to rotate, and the grinding assembly 2 grinds the outer curved surface of the workpiece 12. The hydraulic expansion sleeve 5 and the spindle 3 are combined to replace the workpiece 12 shaft, so as to achieve the effect of facilitating adjustment according to the inner ring size of the workpiece 12. When processing workpieces 12 with different inner ring sizes, it is sufficient to control the hydraulic oil injected into the hydraulic chamber 51, without replacing the remade workpiece 12 shaft, thereby reducing the production cost of the ultra-precision of the workpiece 12.

[0037] In order to prevent the hydraulic expansion sleeve 5 from moving along the axial direction of the main shaft 3, refer to Figures 1 to 3A set of limiting rings 9 is sleeved on the main shaft 3, wherein one limiting ring 9 is located on one side of the hydraulic expansion sleeve 5, and the other limiting ring 9 is located on the other side of the hydraulic expansion sleeve 5, and the opposite surface of the limiting ring 9 abuts against the end wall of the hydraulic expansion sleeve 5. An external thread groove 31 is provided on the outer wall of the main shaft 3, and an internal thread groove 91 is provided on the inner wall of the limiting ring 9. The external thread groove 31 and the internal thread groove 91 cooperate with each other, and the limiting ring 9 is threadedly connected with the main shaft 3. The hydraulic expansion sleeve 5 abuts between the limiting rings 9, so that the hydraulic expansion sleeve 5 is not easy to move along the axial direction of the main shaft 3, thereby reducing the hydraulic expansion sleeve 5 from moving under the extrusion of the workpiece 12 and the main shaft 3, thereby reducing the rupture caused by the movement of the hydraulic expansion sleeve 5. The distance between the limiting rings 9 is adjusted by rotating the limiting rings 9, and then when the lengths of the hydraulic expansion sleeves 5 installed on the main shaft 3 are different, the distance between the limiting rings 9 is adjusted, so that hydraulic expansion sleeves 5 of different sizes can abut between the limiting rings 9.

[0038] In order to achieve the effect of grinding the workpiece 12, refer to Figure 1 and Figure 4 The grinding assembly 2 includes a grinding cylinder 21, a grinding motor 22 and a grinding rod 23. The grinding cylinder 21 is mounted on the mounting frame 11, and the output shaft of the grinding cylinder 21 faces the base 1. The grinding motor 22 is mounted on the output shaft of the grinding cylinder 21, and the output shaft of the grinding motor 22 faces the base 1. The output shaft of the grinding motor 22 is detachably connected to the top of the grinding rod 23. When the workpiece 12 fixed under the grinding rod 23 is ground, the output shaft of the grinding cylinder 21 extends to drive the grinding motor 22 and the grinding rod 23 to descend until the grinding rod 23 contacts the outer curved surface of the workpiece 12, and then the grinding motor 22 starts to drive the grinding rod 23 to rotate, and the grinding rod 23 rotates to grind the outer curved surface of the workpiece 12.

[0039] In order to achieve the effect of abutting and positioning the end wall of the workpiece 12, refer to Figure 1 and Figure 5The positioning assembly 4 includes a grinder head 41, a push rod 42 and a rubber ring 43. The grinder head 41 is installed at one end of the spindle 3, and the grinder head 41 can slide along the length direction of the base 1. The push rod 42 is located at the other end of the spindle 3, and the push rod 42 can slide along the length direction of the base 1. The push rod 42 is arranged opposite to the spindle 3, and the push rod 42 is provided with a clearance groove 422 and an annular groove 421 toward one end of the spindle 3. The clearance groove 422 is for the spindle 3 to be inserted, and the rubber ring 43 is arranged in the annular groove 421. The clearance groove 422 and the annular groove 421 are both coaxially arranged with the push rod 42, and the diameter of the clearance groove 422 is smaller than the diameter of the annular groove 421. When the hydraulic expansion sleeve 5 abuts against the workpiece 12 and the spindle 3, the grinder head 41 moves to move the workpiece 12 to be directly below the grinding rod 23, and then the push rod 42 approaches the grinder head 41. The clearance groove 422 on the push rod 42 is inserted into the spindle 3, so that the push rod 42 is not easy to abut against the spindle 3, and the spindle 3 can reduce the situation that the push rod 42 is restricted from moving. It is convenient for the push rod 42 to abut against the workpiece 12, so that one end of the workpiece 12 abuts against the grinding machine head 41, and the other end of the workpiece 12 abuts against the rubber ring 43, so that the two ends of the hydraulic expansion sleeve 5 are restricted and not easy to move along the axial direction of the spindle 3.

[0040] In order to rotate the workpiece 12, refer to Figure 1 and Figure 7 , the right support 71 is rotatably arranged at one end of the grinder chuck 41 away from the spindle 3, and the right support 71 can slide along the length direction of the base 1. The rotating motor 7 is installed on the side of the right support 71 away from the grinder chuck 41, and the output shaft of the rotating motor 7 passes through the right support 71, and the output shaft of the rotating motor 7 is fixedly connected to the end of the spindle 3 away from the push rod 42. The right support 71 drives the grinder chuck 41 to move, so that the grinder chuck 41 drives the workpiece 12 to move directly below the grinding rod 23. When the workpiece 12 abuts between the grinder chuck 41 and the push rod 42, the friction coefficient between the workpiece 12 and the grinder chuck 41 increases. When the rotating motor 7 is started, the rotating motor 7 drives the spindle 3 to rotate. Since the hydraulic expansion sleeve 5 increases the friction coefficient between the workpiece 12 and the spindle 3, and the grinder chuck 41 rotates synchronously with the spindle 3, the workpiece 12 rotates.

[0041] In order to make the grinding head 41 and the push rod 42 slide along the length direction of the base 1, refer to Figures 1 to 7A bracket 81 is installed near one end of the base 1, and a left support 61 is installed near the other end of the base 1. A transverse cylinder 6 is installed on the left support 61, and the output shaft of the transverse cylinder 6 is rotatably connected to the end of the push rod 42 away from the main shaft 3. After the transverse cylinder 6 is started, the output shaft of the transverse cylinder 6 drives the push rod 42 to move. A transverse motor 8 is installed on the bracket 81, and a transverse screw 82 is installed on the output shaft of the transverse motor 8, and the transverse screw 82 is rotatably connected to the bracket 81. A transverse slide 83 is installed on the bracket 81, and the transverse screw 82 and the transverse slide 83 are parallel to the base 1. A transverse block 84 is installed at the bottom of the right support 71, and the transverse slide 83 passes through the transverse block 84, and the transverse block 84 is threadedly connected to the transverse screw 82. After the transverse motor 8 is started, the transverse motor 8 drives the transverse screw 82 to rotate, and the rotation of the transverse screw 82 drives the transverse block 84 to move along the transverse rod, and then the transverse rod drives the right support 71 to move, thereby achieving the effect of moving the grinding machine head 41.

[0042] The implementation principle of the swing type grinding rod superfinishing machine in the embodiment of the present application is as follows: the workpiece 12 is sleeved on the hydraulic expansion sleeve 5 on the outside of the spindle 3, and then hydraulic oil is injected into the hydraulic chamber 51 through the oil inlet nozzle 52 to make the hydraulic expansion sleeve 5 expand evenly until the outer wall of the hydraulic expansion sleeve 5 abuts between the spindle 3 and the inner wall of the workpiece 12, and the workpiece 12 is not easy to shake along the circumferential direction of the spindle 3. Then the traverse motor 8 is started to move the workpiece 12 to the bottom of the grinding rod 23, and then the traverse cylinder 6 is moved to make the workpiece 12 abut between the grinding machine chuck 41 and the rubber ring 43, so that the workpiece 12 is not easy to move along the axial direction of the spindle 3. When grinding the workpiece 12 fixed under the grinding rod 23, the output shaft of the grinding cylinder 21 extends to drive the grinding motor 22 and the grinding rod 23 to descend until the grinding rod 23 contacts the outer curved surface of the workpiece 12. The grinding motor 22 starts to drive the grinding rod 23 to rotate, and the rotating motor 7 starts to drive the workpiece 12 to rotate, so that the grinding rod 23 grinds the outer curved surface of the workpiece 12. The combination of the hydraulic expansion sleeve 5 and the spindle 3 replaces the workpiece 12 shaft, which is easy to adjust according to the size of the inner ring of the workpiece 12. When processing workpieces 12 with different inner ring sizes, it is sufficient to control the hydraulic oil injected into the hydraulic chamber 51, without replacing the remade workpiece 12 shaft, thereby reducing the production cost of the ultra-precision of the workpiece 12.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A swing-type grinding rod superfinishing machine, comprising a base (1), a mounting frame (11) being arranged on the base (1), a grinding assembly (2) being arranged on the mounting frame (11), the grinding assembly (2) being used for grinding the outer curved surface of a workpiece (12), a spindle (3) being arranged below the grinding assembly (2), characterized in that: Positioning components (4) are provided on both sides of the main shaft (3), and the positioning components (4) are used to abut against the end wall of the workpiece (12). A hydraulic expansion sleeve (5) is sleeved on the main shaft (3), and a hydraulic cavity (51) is provided inside the hydraulic expansion sleeve (5). An oil inlet nozzle (52) and an oil outlet nozzle (53) are provided on the hydraulic expansion sleeve (5).

2. The swing type grinding rod superfinishing machine according to claim 1, characterized in that: A group of limiting rings (9) are sleeved on the main shaft (3), wherein one limiting ring (9) is located on one side of the hydraulic expansion sleeve (5), and the other limiting ring (9) is located on the other side of the hydraulic expansion sleeve (5), and the opposite surfaces of the limiting rings (9) are in contact with the end wall of the hydraulic expansion sleeve (5).

3. The swing type grinding rod superfinishing machine according to claim 2, characterized in that: An external thread groove (31) is arranged on the outer wall of the main shaft (3), and an internal thread groove (91) is arranged on the inner wall of the limiting ring (9); the external thread groove (31) and the internal thread groove (91) cooperate with each other, and the limiting ring (9) is threadedly connected to the main shaft (3).

4. The swing type grinding rod superfinishing machine according to claim 1, characterized in that: The grinding assembly (2) comprises a grinding cylinder (21), a grinding motor (22) and a grinding rod (23); the grinding cylinder (21) is fixedly arranged on the mounting frame (11); the output shaft of the grinding cylinder (21) faces the base (1); the grinding motor (22) is fixedly arranged on the output shaft of the grinding cylinder (21); the output shaft of the grinding motor (22) faces the base (1); and the output shaft of the grinding motor (22) is detachably connected to the top end of the grinding rod (23).

5. The swing type grinding rod superfinishing machine according to claim 1, characterized in that: The positioning assembly (4) comprises a grinding machine rolling head (41), a push rod (42) and a rubber ring (43); the grinding machine rolling head (41) is fixedly arranged at one end of the main shaft (3); the grinding machine rolling head (41) is slidably connected to the base (1); the push rod (42) is located at the other end of the main shaft (3); the push rod (42) is slidably connected to the base (1); the push rod (42) and the main shaft (3) are arranged opposite to each other; an annular groove (421) is provided on the push rod (42) facing one end of the main shaft (3); and the rubber ring (43) is arranged in the annular groove (421).

6. The oscillating grinding rod superfinishing machine according to claim 5, characterized in that: The push rod (42) is provided with a clearance groove (422) at one end facing the main shaft (3), and the clearance groove (422) is for the main shaft (3) to be inserted. A transverse cylinder (6) is arranged at one end of the push rod (42) away from the main shaft (3), and the output shaft of the transverse cylinder (6) is rotatably connected to the push rod (42). A left support (61) is fixedly arranged between the transverse cylinder (6) and the base (1).

7. The oscillating grinding rod superfinishing machine according to claim 5, characterized in that: A right support (71) is rotatably arranged at one end of the grinding machine rolling head (41) away from the main shaft (3); the right support (71) is slidably connected to the base (1); a rotating motor (7) is fixedly arranged at one side of the right support (71) away from the grinding machine rolling head (41); an output shaft of the rotating motor (7) passes through the right support (71); and the output shaft of the rotating motor (7) is fixedly connected to one end of the main shaft (3) away from the push rod (42).

8. The swing type grinding rod superfinishing machine according to claim 7, characterized in that: A bracket (81) is fixedly arranged on the base (1), a transverse motor (8) is fixedly arranged on the bracket (81), a transverse screw rod (82) is fixedly arranged on the output shaft of the transverse motor (8), the transverse screw rod (82) is rotatably connected to the bracket (81), a transverse slide rod (83) is fixedly arranged on the bracket (81), the transverse screw rod (82) and the transverse slide rod (83) are both parallel to the base (1), a transverse block (84) is fixedly arranged at the bottom of the right support (71), the transverse slide rod (83) passes through the transverse block (84), and the transverse block (84) is threadedly connected to the transverse screw rod (82).

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