Grinding rod swing type superfinishing machine for outer curved surface of workpiece

Abstract

The utility model relates to a grinding rod swing type workpiece outer curved surface superfinishing machine, which relates to the technical field of outer curved surface grinding, and comprises a base, a grinding assembly is arranged on the base, the grinding assembly is used for grinding the outer curved surface of a workpiece, a left abutting plate and a right abutting plate are symmetrically arranged on two sides of the grinding assembly, and the left abutting plate and the right abutting plate are oppositely arranged. The left abutting plate and the right abutting plate are both used for abutting against the end face of a workpiece, a synchronous assembly is arranged on the base and used for driving the left abutting plate and the right abutting plate to move synchronously, detection assemblies are arranged on the opposite faces of the left abutting plate and the right abutting plate, and the detection assemblies are used for detecting the acting force of the workpiece on the left abutting plate and the right abutting plate. The method has the effects that the operation steps of the superfinishing machine are simplified, and the center line of the workpiece and the axis of the grinding rod coincide conveniently.

Description

Technical Field

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

[0002] In the production and processing of precision workpieces, the superfinishing machine presses the grinding rod against the rotating workpiece with a certain pressure, and at the same time the grinding rod rotates to achieve the effect of grinding the outer curved surface of the workpiece.

[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: when grinding the outer curved surface of a workpiece, the center line of the workpiece usually coincides with the axis of the grinding rod. However, when the length of the workpiece changes, in order to make the center line of the workpiece coincide with the axis of the grinding rod, the position of the workpiece axis needs to be adjusted multiple times, resulting in cumbersome operation when the superfinishing machine processes workpieces of different sizes. Utility Model Content

[0005] In order to simplify the operation steps of the superfinishing machine and facilitate the coincidence of the center line of the workpiece with the axis of the grinding rod, the present application provides a grinding rod swinging type workpiece outer curved surface superfinishing machine.

[0006] The present application provides a grinding rod swinging type workpiece outer curved surface superfinishing machine adopts the following technical solution:

[0007] A grinding rod swinging type workpiece outer curved surface superfinishing machine comprises a base, a grinding assembly is arranged on the base, the grinding assembly is used to grind the outer curved surface of the workpiece, a left abutment plate and a right abutment plate are symmetrically arranged on both sides of the grinding assembly, the left abutment plate and the right abutment plate are arranged opposite to each other, and the left abutment plate and the right abutment plate are both used to abut against the end face of the workpiece, a synchronization assembly is arranged on the base, the synchronization assembly is used to drive the left abutment plate and the right abutment plate to move synchronously, and detection assemblies are arranged on the opposite surfaces of the left abutment plate and the right abutment plate, and the detection assembly is used to detect the force exerted by the workpiece on the left abutment plate and the right abutment plate.

[0008] By adopting the above technical solution, after the workpiece is placed between the left abutment plate and the right abutment plate, the left abutment plate and the right abutment plate are simultaneously approached to each other through the synchronization component. When the pressure detected by the detection component is equal and reaches the set pressure value, the synchronization component stops the left abutment plate and the right abutment plate from moving. At this time, the center axis of the workpiece coincides with the center axis of the grinding component, and then the grinding component starts to grind the rotating workpiece. When the length of the workpiece changes, the staff does not need to repeatedly adjust the position of the workpiece, which simplifies the operating steps of the superfinishing machine and facilitates the superfinishing machine to process workpieces of different sizes.

[0009] Preferably, the detection component includes a pressure sensor and a rubber layer, the rubber layer is arranged on the opposite surface of the pressure sensor, annular grooves are provided on the opposite surfaces of the left and right abutment plates, and the pressure sensor is arranged in the annular grooves.

[0010] By adopting the above technical solution, when the end wall of the workpiece abuts against the rubber layer, the left abutment plate and the right abutment plate continue to approach each other, and then the workpiece squeezes the rubber layer to deform, so that the deformation of the rubber layer exerts pressure on the pressure sensor. The pressure sensor detects the force of the workpiece, and the deformation of the rubber layer reduces the situation where the workpiece squeezes and ruptures the pressure sensor.

[0011] Preferably, a left slide groove and a right slide groove are provided on the top of the base, a left slider is slidably arranged in the left slide groove, an outer wall of the left slider is fitted with an inner wall of the left slide groove, a left bracket is fixedly arranged on the top of the left slider, the left bracket is rotatably connected to the left abutment plate, a right slider is slidably arranged in the right slide groove, an outer wall of the right slider is fitted with an inner wall of the right slide groove, a right bracket is fixedly arranged on the top of the right slider, the right bracket is rotatably connected to the right abutment plate, and the left slider and the right slider are symmetrically arranged on both sides of the grinding assembly.

[0012] By adopting the above technical scheme, the left abutment plate is connected to the left slider through the left bracket, and the left slider drives the left abutment plate to move along the setting direction of the left slide groove; the right abutment plate is connected to the right slider through the right bracket, and the right slider drives the right abutment plate to move along the setting direction of the right slide groove; when the workpiece abuts between the left abutment plate and the right abutment plate and rotates, the left abutment plate and the left bracket rotate relative to each other, and the right abutment plate and the right bracket rotate relative to each other, and then the left abutment plate, the right abutment plate and the workpiece rotate synchronously, reducing the friction of the left abutment plate and the right abutment plate on the end wall of the workpiece.

[0013] Preferably, a groove is provided on the top of the base, and the groove is located between the left slide groove and the right slide groove.

[0014] By adopting the above technical solution, when the perpendicular midline of the workpiece coincides with the perpendicular midline of the grinding assembly, the workpiece is located above the groove, and the debris generated during the grinding of the workpiece falls into the groove.

[0015] Preferably, the synchronization assembly includes a forward screw and a reverse screw, the forward screw is rotatably arranged in a left slide groove, the forward screw is threadedly connected to the left slider, and the reverse screw is rotatably arranged in a right slide groove, and the reverse screw is threadedly connected to the right slider.

[0016] By adopting the above technical solution, when the forward screw and the reverse screw rotate synchronously, the left slider and the right slider move synchronously, thereby achieving the effect of synchronous movement of the left abutment plate and the right abutment plate.

[0017] Preferably, the synchronous assembly also includes a synchronous motor, the reverse screw is fixedly connected to the output shaft of the synchronous motor at one end away from the forward screw, a motor slot is provided in the right slide groove, the synchronous motor is fixedly arranged in the motor slot, a connecting slot is provided in the base, the left slide groove and the right slide groove are both connected to the connecting slot, a connecting rod is rotatably arranged in the connecting slot, and the opposing surfaces of the forward screw and the reverse screw are fixedly connected to the end wall of the connecting rod.

[0018] By adopting the above technical solution, the output shaft of the synchronous motor drives the reverse screw to rotate, the reverse screw rotation drives the connecting rod to rotate, and the connecting rod rotation drives the forward screw to rotate, thereby achieving the effect of the synchronous motor driving the forward screw and the reverse screw to rotate synchronously.

[0019] Preferably, a push rod is rotatably arranged on the left bracket, the push rod passes through the left support plate, the left support plate is fixedly connected to the push rod, a rotating motor is fixedly arranged on the right bracket, a main shaft is fixedly arranged on the output shaft of the rotating motor, the main shaft passes through the right support plate, the right support plate is fixedly connected to the main shaft, the main shaft and the push rod are arranged opposite to each other, and a clearance groove is provided on the main shaft toward one end of the push rod, and the clearance groove is for the push rod to be inserted.

[0020] By adopting the above technical solution, the workpiece is sleeved on the main shaft, and then the left bracket and the right bracket are close to each other. When the left and right abutment plates press the workpiece tightly, the output shaft of the rotating motor rotates to drive the main shaft to rotate, and the rotation of the main shaft drives the left abutment plate to rotate. After the left and right abutment plates press the workpiece tightly, the friction coefficient between the workpiece and the right abutment plate is large enough, so the rotation of the right abutment plate drives the workpiece to rotate.

[0021] Preferably, the grinding assembly includes a grinding cylinder, a grinding bracket, a grinding motor and a grinding rod, the grinding cylinder is fixedly set on the base, the grinding bracket is fixedly set on the output shaft of the grinding cylinder, the grinding motor is fixedly set on the grinding bracket, the output shaft of the grinding motor passes through the grinding bracket, the output shaft of the grinding motor is fixedly connected to the top end of the grinding rod, and the bottom end of the grinding rod faces the base.

[0022] By adopting the above technical solution, when the workpiece is tightened by the left and right abutment plates, the output shaft of the grinding cylinder drives the grinding bracket to descend, and the grinding bracket drives the grinding motor and the grinding rod to approach the workpiece. When the bottom end of the grinding rod contacts the workpiece, the grinding motor drives the grinding rod to rotate, thereby causing the grinding rod to perform super-finishing on the outer curved surface of the workpiece.

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

[0024] 1. By setting the base, grinding assembly, left abutment plate, right abutment plate, synchronization assembly and detection assembly, the operation steps of the superfinishing machine are simplified, making it easier for the superfinishing machine to process workpieces of different sizes;

[0025] 2. By setting up the pressure sensor, the rubber layer and the annular groove, the effect of detecting the force exerted by the workpiece on the left and right abutment plates is achieved;

[0026] 3. By setting the grinding cylinder, grinding bracket, grinding motor and grinding rod, the grinding rod can achieve the effect of super-finishing the outer surface of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a grinding rod swinging type workpiece outer curved surface superfinishing machine in an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view showing the positional relationship between the pressure sensor and the rubber layer in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view showing the connection relationship between the forward screw and the reverse screw in the embodiment of the present application.

[0030] Figure 4 It is a schematic diagram showing the positional relationship between the groove and the base in the embodiment of the present application.

[0031] Figure 5 It is a schematic diagram showing the connection relationship between the grinding cylinder and the grinding rod in the embodiment of the present application.

[0032] Explanation of the reference numerals in the accompanying drawings: 1. base; 11. groove; 12. workpiece; 2. grinding assembly; 21. grinding cylinder; 22. grinding bracket; 23. grinding motor; 24. grinding rod; 3. left abutment plate; 31. push rod; 32. clearance groove; 4. right abutment plate; 41. spindle; 42. rotating motor; 5. synchronization assembly; 51. forward screw; 52. reverse screw; 53. synchronous motor; 531. motor groove; 6. detection assembly; 61. pressure sensor; 62. rubber layer; 63. annular groove; 7. left slide groove; 71. left slider; 72. left bracket; 8. right slide groove; 81. right slider; 82. right bracket; 9. connecting groove; 91. connecting rod. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses a grinding rod swinging type workpiece outer curved surface superfinishing machine. Figures 1 to 5, including a base 1, a left slide groove 7, a right slide groove 8 and a groove 11 are provided on the top of the base 1, the groove 11 is located at the center of the base 1, and the left slide groove 7 and the right slide groove 8 are symmetrically arranged on both sides of the groove 11. A left slider 71 is slidably arranged in the left slide groove 7, the outer wall of the left slider 71 is in contact with the inner wall of the left slide groove 7, and a left bracket 72 is installed on the top of the left slider 71. A right slider 81 is slidably arranged in the right slide groove 8, the outer wall of the right slider 81 is in contact with the inner wall of the right slide groove 8, and a right bracket 82 is installed on the top of the right slider 81. A left abutment plate 3 is arranged on the left bracket 72 to rotate toward one side of the right bracket 82, and a right abutment plate 4 is arranged on the right bracket 82 to rotate toward one side of the left bracket 72. The left abutment plate 3 and the right abutment plate 4 are arranged oppositely, and both the left abutment plate 3 and the right abutment plate 4 are used to abut against the end face of the workpiece 12. A grinding assembly 2 is installed on the base 1, and the grinding assembly 2 is used to grind the outer curved surface of the workpiece 12. The left abutment plate 3 and the right abutment plate 4 are symmetrically arranged on both sides of the grinding assembly 2. A synchronization component 5 is installed on the base 1. The synchronization component 5 is used to drive the left abutment plate 3 and the right abutment plate 4 to approach each other synchronously, and the synchronization component 5 is used to drive the left abutment plate 3 and the right abutment plate 4 to move away from each other synchronously. Detection components 6 are installed on the opposite surfaces of the left abutment plate 3 and the right abutment plate 4. The detection component 6 is used to detect the force of the workpiece 12 on the left abutment plate 3 and the right abutment plate 4. After the workpiece 12 is placed between the left abutment plate 3 and the right abutment plate 4, the left abutment plate 3 and the right abutment plate 4 simultaneously approach each other through the synchronization component 5. When the pressure detected by the detection component 6 is equal and reaches the set pressure value, the synchronization component 5 stops the left abutment plate 3 and the right abutment plate 4 from moving. At this time, the central axis of the workpiece 12 coincides with the central axis of the grinding component 2, and the workpiece 12 is located above the groove 11, and then the grinding component 2 starts to grind the rotating workpiece 12. During the rotation of the workpiece 12, the left abutment plate 3, the right abutment plate 4 and the workpiece 12 rotate synchronously, reducing the friction of the left abutment plate 3 and the right abutment plate 4 on the end wall of the workpiece 12. During the grinding process of the workpiece 12, the debris generated by the grinding falls into the groove 11. When the length of the workpiece 12 changes, the staff does not need to repeatedly adjust the position of the workpiece 12, which simplifies the operation steps of the superfinishing machine and facilitates the superfinishing machine to process workpieces 12 of different sizes.

[0035] In order to detect the force exerted by the workpiece 12 on the left abutment plate 3 and the right abutment plate 4, refer to Figure 1 and Figure 2The detection component 6 includes a pressure sensor 61 and a rubber layer 62, and the rubber layer 62 is installed on the opposite surface of the pressure sensor 61. An annular groove 63 is provided on the opposite surfaces of the left abutment plate 3 and the right abutment plate 4, and the pressure sensor 61 is installed in the annular groove 63. When the end wall of the workpiece 12 abuts against the rubber layer 62, the left abutment plate 3 and the right abutment plate 4 continue to approach each other, and then the workpiece 12 squeezes the rubber layer 62 to deform, so that the deformation of the rubber layer 62 exerts pressure on the pressure sensor 61, and the pressure sensor 61 detects the force of the workpiece 12. In the process of the left abutment plate 3 and the right abutment plate 4 continuously pressing the workpiece 12, the rubber layer 62 is deformed, which reduces the situation where the workpiece 12 squeezes and ruptures the pressure sensor 61.

[0036] In order to achieve the effect of synchronous movement of the left abutment plate 3 and the right abutment plate 4, refer to Figures 1 to 3 The synchronous assembly 5 includes a forward screw 51, a reverse screw 52 and a synchronous motor 53. The forward screw 51 is rotatably arranged in the left slide 7, and the forward screw 51 is threadedly connected to the left slider 71. The reverse screw 52 is rotatably arranged in the right slide 8, and the reverse screw 52 is threadedly connected to the right slider 81. A connecting groove 9 is provided in the base 1, and the connecting groove 9 connects the left slide 7 and the right slide 8. A connecting rod 91 is rotatably arranged in the connecting groove 9, and the opposite surfaces of the forward screw 51 and the reverse screw 52 are welded to the end wall of the connecting rod 91. A motor groove 531 is provided in the right slide 8, and the synchronous motor 53 is installed in the motor groove 531, and the output shaft of the synchronous motor 53 is welded to the end of the reverse screw 52 away from the forward screw 51. The output shaft of the synchronous motor 53 drives the reverse screw 52 to rotate, and the reverse screw 52 rotates to drive the connecting rod 91 to rotate, and the connecting rod 91 rotates to drive the forward screw 51 to rotate, so that the forward screw 51 and the reverse screw 52 rotate synchronously. When the forward screw 51 and the reverse screw 52 rotate synchronously, the left slider 71 and the right slider 81 move synchronously, thereby achieving the effect of synchronous movement of the left abutment plate 3 and the right abutment plate 4.

[0037] In order to rotate the workpiece 12, refer to Figures 1 to 3, the left bracket 72 is rotated toward the right bracket 82 to set the push rod 31, the push rod 31 passes through the left abutment plate 3, and the left abutment plate 3 is welded to the push rod 31. The right bracket 82 is installed with a rotating motor 42 on the side away from the left bracket 72, and the output shaft of the rotating motor 42 passes through the right bracket 82. The main shaft 41 is installed on the output shaft of the rotating motor 42, the main shaft 41 passes through the right abutment plate 4, and the right abutment plate 4 is welded to the main shaft 41. The axis of the main shaft 41 and the push rod 31 coincide, and the main shaft 41 and the push rod 31 are arranged oppositely. The main shaft 41 is provided with a clearance groove 32 at one end of the push rod 31, and the clearance groove 32 is for the push rod 31 to be inserted. The workpiece 12 is sleeved on the main shaft 41, and then the left bracket 72 and the right bracket 82 are close to each other. When the left abutment plate 3 and the right abutment plate 4 press the workpiece 12 tightly, the output shaft of the rotating motor 42 rotates to drive the main shaft 41 to rotate, and the rotation of the main shaft 41 drives the right abutment plate 4 to rotate. After the left abutting plate 3 and the right abutting plate 4 press the workpiece 12 tightly, the friction coefficient between the workpiece 12 and the right abutting plate 4 is large enough, so the rotation of the right abutting plate 4 drives the workpiece 12 to rotate.

[0038] In order to grind the workpiece 12, refer to Figure 1 and Figure 5 The grinding assembly 2 includes a grinding cylinder 21, a grinding bracket 22, a grinding motor 23 and a grinding rod 24. The bottom of the grinding cylinder 21 is mounted on the top of the base 1, and the output shaft of the grinding cylinder 21 is arranged in the vertical direction. The grinding bracket 22 is mounted on the output shaft of the grinding cylinder 21, and the grinding motor 23 is mounted on the grinding bracket 22. The output shaft of the grinding motor 23 passes through the grinding bracket 22, and the output shaft of the grinding motor 23 is connected to the top of the grinding rod 24 by bolts, and the bottom end of the grinding rod 24 faces the base 1. When the workpiece 12 is pressed tightly by the left abutment plate 3 and the right abutment plate 4, the output shaft of the grinding cylinder 21 retracts to drive the grinding bracket 22 to descend, and the grinding bracket 22 drives the grinding motor 23 and the grinding rod 24 to approach the workpiece 12. When the bottom end of the grinding rod 24 contacts the workpiece 12, the grinding motor 23 drives the grinding rod 24 to rotate, so that the grinding rod 24 performs super-finishing on the outer curved surface of the workpiece 12.

[0039] The implementation principle of the grinding rod swinging type workpiece 12 outer curved surface superfinishing machine in the embodiment of the present application is: the workpiece 12 is sleeved on the main shaft 41, and then the synchronous motor 53 is started to make the left abutment plate 3 and the right abutment plate 4 approach each other. After the end wall of the workpiece 12 abuts against the rubber layer 62, the left abutment plate 3 and the right abutment plate 4 continue to approach each other, and then the workpiece 12 squeezes the rubber layer 62 to deform, so that the deformation of the rubber layer 62 exerts pressure on the pressure sensor 61, and the pressure sensor 61 detects the force of the workpiece 12. When the pressure detected by the pressure sensor 61 is equal and reaches the set pressure value, the synchronous motor 53 stops. At this time, the center axis of the workpiece 12 coincides with the center axis of the grinding assembly 2. When the length of the workpiece 12 changes, the staff does not need to repeatedly adjust the position of the workpiece 12, which simplifies the operation steps of the superfinishing machine and facilitates the superfinishing machine to process workpieces 12 of different sizes. When the center axis of the workpiece 12 coincides with the center axis of the grinding assembly 2, the output shaft of the grinding cylinder 21 shortens to drive the bottom end of the grinding rod 24 to contact the workpiece 12, and then the grinding motor 23 drives the grinding rod 24 to rotate, so that the grinding rod 24 performs super-finishing on the outer curved surface of the workpiece 12.

[0040] 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 grinding rod swinging type workpiece outer curved surface superfinishing machine, comprising a base (1), on which a grinding assembly (2) is arranged, the grinding assembly (2) is used to grind the outer curved surface of a workpiece (12), and is characterized in that: A left abutment plate (3) and a right abutment plate (4) are symmetrically arranged on both sides of the grinding component (2), the left abutment plate (3) and the right abutment plate (4) are arranged opposite to each other, and the left abutment plate (3) and the right abutment plate (4) are both used to abut against the end surface of the workpiece (12). A synchronization component (5) is arranged on the base (1), and the synchronization component (5) is used to drive the left abutment plate (3) and the right abutment plate (4) to move synchronously. Detection components (6) are arranged on the opposite surfaces of the left abutment plate (3) and the right abutment plate (4), and the detection component (6) is used to detect the force exerted by the workpiece (12) on the left abutment plate (3) and the right abutment plate (4).

2. The grinding rod swing type workpiece outer curved surface superfinishing machine according to claim 1, characterized in that: The detection component (6) comprises a pressure sensor (61) and a rubber layer (62), wherein the rubber layer (62) is arranged on a surface opposite to the pressure sensor (61), an annular groove (63) is provided on the surfaces opposite to the left abutment plate (3) and the right abutment plate (4), and the pressure sensor (61) is arranged in the annular groove (63).

3. The grinding rod swing type workpiece outer curved surface superfinishing machine according to claim 1, characterized in that: A left slide groove (7) and a right slide groove (8) are provided on the top of the base (1); a left slider (71) is slidably arranged in the left slide groove (7); the outer wall of the left slider (71) and the inner wall of the left slide groove (7) are mutually fitted; a left bracket (72) is fixedly arranged on the top of the left slider (71); the left bracket (72) is rotatably connected to the left abutment plate (3); a right slider (81) is slidably arranged in the right slide groove (8); the outer wall of the right slider (81) and the inner wall of the right slide groove (8) are mutually fitted; a right bracket (82) is fixedly arranged on the top of the right slider (81); the right bracket (82) is rotatably connected to the right abutment plate (4); the left slider (71) and the right slider (81) are symmetrically arranged on both sides of the grinding assembly (2).

4. The grinding rod swing type workpiece outer curved surface superfinishing machine according to claim 3, characterized in that: A groove (11) is provided on the top of the base (1), and the groove (11) is located between the left slide groove (7) and the right slide groove (8).

5. The grinding rod swing type workpiece outer curved surface superfinishing machine according to claim 3, characterized in that: The synchronization assembly (5) comprises a forward screw (51) and a reverse screw (52), wherein the forward screw (51) is rotatably arranged in a left slide groove (7), and the forward screw (51) is threadedly connected to a left slider (71), and the reverse screw (52) is rotatably arranged in a right slide groove (8), and the reverse screw (52) is threadedly connected to a right slider (81).

6. The grinding rod swing type workpiece outer curved surface superfinishing machine according to claim 5, characterized in that: The synchronous assembly (5) also includes a synchronous motor (53), one end of the reverse screw (52) away from the forward screw (51) is fixedly connected to the output shaft of the synchronous motor (53), a motor slot (531) is provided in the right slide groove (8), the synchronous motor (53) is fixedly arranged in the motor slot (531), a connecting slot (9) is provided in the base (1), the left slide groove (7) and the right slide groove (8) are both connected to the connecting slot (9), a connecting rod (91) is rotatably arranged in the connecting slot (9), and the opposite surfaces of the forward screw (51) and the reverse screw (52) are fixedly connected to the end wall of the connecting rod (91).

7. The grinding rod swing type workpiece outer curved surface superfinishing machine according to claim 3, characterized in that: A push rod (31) is rotatably arranged on the left bracket (72), the push rod (31) passes through the left support plate (3), the left support plate (3) is fixedly connected to the push rod (31), a rotating motor (42) is fixedly arranged on the right bracket (82), a main shaft (41) is fixedly arranged on the output shaft of the rotating motor (42), the main shaft (41) passes through the right support plate (4), the right support plate (4) is fixedly connected to the main shaft (41), the main shaft (41) and the push rod (31) are arranged opposite to each other, and a clearance groove (32) is provided on one end of the main shaft (41) facing the push rod (31), and the clearance groove (32) is used for inserting the push rod (31).

8. The grinding rod swing type workpiece outer curved surface superfinishing machine according to claim 1, characterized in that: The grinding assembly (2) comprises a grinding cylinder (21), a grinding bracket (22), a grinding motor (23) and a grinding rod (24); the grinding cylinder (21) is fixedly arranged on the base (1); the grinding bracket (22) is fixedly arranged on the output shaft of the grinding cylinder (21); the grinding motor (23) is fixedly arranged on the grinding bracket (22); the output shaft of the grinding motor (23) passes through the grinding bracket (22); the output shaft of the grinding motor (23) is fixedly connected to the top end of the grinding rod (24); and the bottom end of the grinding rod (24) faces the base (1).

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