A multi-station processing device and processing technology for roller pin workpiece mounting hole

Abstract

The present invention belongs to the technical field of roller pin installation hole processing, in particular to a multi-station processing device for roller pin workpiece installation holes and its processing technology, the device includes a clamping mechanism and a drilling mechanism, and also includes an external frame and a rotating drum; the external frame is set as a cylinder structure with the same axis as the rotating drum, the rotating drum is rotatably arranged along the axis in the external frame, the clamping mechanism is provided with two groups, the two groups of clamping mechanisms are arranged at the two side positions in the rotating drum, and a horizontally placed pin sleeve body is clamped between the two clamping mechanisms; the drilling mechanism is provided with two groups, the two groups of drilling mechanisms are arranged at the two end positions in the rotating drum, and the drilling mechanism is movably arranged around the circumferential direction of the rotating drum. The present invention performs drilling operations on both sides of the pin sleeve body at the same time to improve work efficiency, and can offset the horizontal forces acting on both sides on the pin sleeve body, thereby improving the buffering effect of mechanical vibration of the pin sleeve body in the horizontal direction.

Description

Technical Field

[0001] The invention relates to the technical field of roller pin mounting hole processing, and in particular to a multi-station processing device for a roller pin workpiece mounting hole and a processing technology thereof. Background Art

[0002] During the production and processing of roller pin workpieces, it is often necessary to perform hole drilling on the outside of the pin sleeve.

[0003] Referring to the Chinese patent disclosed as CN111014759A, a multi-station processing device for roller pin workpiece mounting holes is disclosed, including: a frame, a main shaft with external threads, a lifting platform with an internal threaded nut fixed at the center, a drill bit, a workbench, a drill bit driving mechanism, a guide unit and a clamp, the main shaft is vertically and rotatably supported on the frame, the lifting platform is threadably connected to the main shaft through the internal thread of the nut, and the drill bit is rotatably supported on the lifting platform; the workbench is rotatably arranged on the frame, and the clamp is arranged on the workbench at intervals corresponding to the drill bit; the guide unit includes a guide tube and a guide rod, the guide tube is fixed on the frame, one end of the guide rod is fixed to the lifting platform, and the other end is slidably connected to the guide tube.

[0004] However, there is usually more than one opening on the outside of the pin sleeve, and the workpiece fixing direction needs to be changed several times to perform the processing operation, which can easily cause the pin sleeve to wear or loosen at the workpiece fixing position. Summary of the invention

[0005] Based on the technical problems existing in the background technology, the present invention proposes a multi-station processing device for a roller pin workpiece mounting hole and a processing technology thereof.

[0006] The present invention proposes a multi-station processing device for roller pin workpiece mounting holes, which includes a clamping mechanism and a drilling mechanism, and also includes an external frame and a rotating drum; the external frame is configured as a cylinder structure with the same axis as the rotating drum, and the rotating drum is rotatably arranged along the axis in the external frame, and two groups of clamping mechanisms are provided, and the two groups of clamping mechanisms are arranged at two side positions in the rotating drum, and a horizontally placed pin shaft sleeve body is clamped between the two clamping mechanisms; the drilling mechanism is provided with two groups, and the two groups of drilling mechanisms are arranged at two end positions in the rotating drum, and the drilling mechanism is movably arranged around the circumferential direction of the rotating drum.

[0007] Furthermore, a cover plate with an annular structure is fixed to the top of the external frame, a motor 2 is fixed to the top of the cover plate, a gear is installed on the output shaft of the motor 2, a tooth groove meshing with the gear is opened at the top position of the circumferential outer wall of the rotating drum, and a plurality of connecting frames are fixed to the bottom end of the external frame, and the bottom end of the rotating drum is in sliding contact with the connecting frames.

[0008] Furthermore, a plurality of vertically placed support frames are fixed to the bottom end of the external frame, and a storage box is arranged at the bottom end of the external frame, and the storage box is slidably arranged inside the four support frames.

[0009] Furthermore, the clamping mechanism is provided with a cylinder connected to the rotating drum, and a pressure block is installed at one end of the cylinder facing the pin sleeve body.

[0010] Furthermore, rotating holes are provided on the inner walls on both sides of the rotating drum, and the inner walls of the rotating holes are rotatably connected with rotating boxes through bearings, and the cylinder and the rotating boxes are fixedly installed. Motor 1 is installed on one side of the outer wall of the rotating drum, and the output shaft of motor 1 is fixed to one of the rotating boxes.

[0011] Furthermore, the drilling mechanism is provided with a drilling rig, the output shaft of the drilling rig is installed with a drill bit, the outer wall of the drilling rig is installed with a connecting plate, the connecting plate is extended in the vertical direction, and the side wall of the connecting plate is connected to a horizontally placed electric push rod.

[0012] Furthermore, an electric guide rail 1 with an arc structure is installed at a position on the external frame corresponding to the electric push rod, and a horizontally extending electric guide rail 2 is connected to the electric guide rail 1, and the electric push rod is connected to the electric guide rail 2.

[0013] Furthermore, the end of the connecting plate away from the electric push rod is connected to a balance rod, the balance rod extends horizontally in a direction away from the pin sleeve body, the electric push rods located at both ends of the rotating drum are symmetrically arranged in the vertical direction, and the rotating drum is provided with through grooves at positions corresponding to the balance rod and the telescopic rod of the electric push rod, and the through grooves are arranged in an arc-shaped structure.

[0014] Furthermore, a slider 1 is slidably connected in the through groove, and through holes are provided at the ends of the slider 1 and at positions corresponding to the balance rod and the telescopic rod of the electric push rod. Sliders 2 are slidably connected to the inner wall of the through groove on both sides of the slider 1, and a spring is connected between the slider 1 and the slider 2. Limiting parts that are in sliding contact with the inner wall and the outer wall of the rotating drum are fixed to the tops of the slider 1 and the slider 2.

[0015] The present invention provides a multi-station processing technology for a roller pin workpiece mounting hole, comprising the following steps:

[0016] S1: Place the pin sleeve body to be drilled in the middle of the drum by a robot or manually, and fix the pin sleeve body in the center of the drum by a clamping mechanism;

[0017] S2: The pin sleeve body is rotated in the horizontal direction by rotating the drum, so as to adjust the corresponding position of the pin sleeve body and the drilling mechanism;

[0018] S3: At the same time, the drilling mechanism is moved relative to the rotating drum to adjust the corresponding position of the drilling mechanism;

[0019] S4: Then the drilling mechanism is started to perform drilling operations on both sides of the pin sleeve body at the same time, so as to perform drilling operations at different positions outside the pin sleeve body at different angles.

[0020] The beneficial effects of the present invention are:

[0021] 1. Through the external frame and the rotating drum, drilling operations are carried out on both sides of the pin sleeve body at the same time, and the horizontal forces acting on both sides of the pin sleeve body can be offset, so as to improve the buffering effect of the mechanical vibration of the pin sleeve body in the horizontal direction, thereby avoiding the loosening between the pin sleeve body and the clamping mechanism caused by vibration and affecting the hole opening effect, and the mechanical vibration transmitted from the pin sleeve body to the clamping mechanism is dispersed along the circumferential direction on both sides of the rotating drum and offset each other.

[0022] 2. Through the through openings at the top and bottom of the external frame and the rotating drum, the top area between the external frame and the rotating drum is covered by a cover plate, and the opening above the rotating drum is convenient for placing the workpiece, and the lower openings below the rotating drum and between the rotating drum and the external frame are convenient for debris to fall and be collected directly, thereby avoiding residual debris around the processing position and affecting the subsequent hole opening operation of the same pin sleeve.

[0023] 3. The electric guide rail 1 drives the electric push rod and the drill bit to deflect around the circumferential direction of the rotating drum, so that vertical holes and inclined holes can be opened on both sides of the pin sleeve body at the same time, and the horizontally extended electric guide rail 2 can adjust the position of the drill bit relative to the center of the rotating drum, so that hole opening operations can be performed at different positions on both sides of the pin sleeve body at the same time.

[0024] 4. The stability of the drilling mechanism during the drilling operation is improved by setting the limit of the groove and the balance rod. At the same time, the vibration generated by the drilling mechanism is dispersed to the circumferential direction of the rotating drum through the balance rod and the telescopic rod of the electric push rod, so that the mechanical vibrations transmitted by the drilling mechanism and the clamping mechanism offset each other, thereby further improving the stability of the overall equipment during long-term operation.

[0025] 5. The slider 2 connected by springs on both sides of the slider 1 is used to buffer the mechanical vibration in the horizontal direction, and the mechanical vibration transmitted outward by the drilling mechanism is dispersed to the vertical direction of the drum through the limit part, thereby further improving the stability of the drilling operation to ensure the stability and hole opening efficiency of the pin sleeve main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a multi-station processing device for a roller pin workpiece mounting hole proposed by the present invention;

[0027] Figure 2 A schematic diagram of the internal structure of the external frame and the rotating drum of a multi-station processing device for roller pin workpiece mounting holes proposed by the present invention;

[0028] Figure 3 A schematic diagram of the bottom structure of an external frame of a multi-station processing device for a roller pin workpiece mounting hole proposed by the present invention;

[0029] Figure 4 A schematic diagram of the top structure of an external frame of a multi-station processing device for a roller pin workpiece mounting hole proposed by the present invention;

[0030] Figure 5 A schematic diagram of the rotary drum structure of a multi-station processing device for roller pin workpiece mounting holes proposed by the present invention;

[0031] Figure 6 A schematic diagram of the position structure of a connecting plate of a multi-station processing device for a roller pin workpiece mounting hole proposed by the present invention;

[0032] Figure 7 A schematic diagram of the local structure of a groove-piercing device for a multi-station processing hole for a roller pin workpiece mounting hole proposed by the present invention.

[0033] In the figure: 1 external frame, 2 rotating drum, 201 rotating hole, 202 tooth groove, 203 through groove, 3 pin shaft sleeve body, 4 drilling machine, 401 drill bit, 5 rotating box, 6 cylinder, 7 pressure block, 8 motor 1, 9 connecting frame, 10 cover plate, 11 motor 2, 12 gear, 14 electric guide rail 1, 15 electric guide rail 2, 16 electric push rod, 17 connecting plate, 18 balance rod, 19 slider 1, 20 slider 2, 21 spring, 22 limit part, 23 support frame, 24 storage box. DETAILED DESCRIPTION

[0034] Example 1: Reference Figure 1-Figure 6, a multi-station processing device for roller pin workpiece mounting holes, including a clamping mechanism and a drilling mechanism, and also including an external frame 1 and a rotating drum 2; the external frame 1 is arranged to be a cylinder structure with the same axis as the rotating drum 2, the external frame 1 and the rotating drum 2 are both vertical and open at the top and bottom ends, the rotating drum 2 is rotatably arranged along the axis in the external frame 1, and the clamping mechanism is provided with two groups, and the two groups of clamping mechanisms are arranged at the two side positions in the rotating drum 2, and a horizontally placed pin sleeve body 3 is clamped between the two clamping mechanisms; two groups of drilling mechanisms are provided, and the two groups of drilling mechanisms are arranged at the two end positions in the rotating drum 2, and the drilling mechanisms are movably arranged around the circumferential direction of the rotating drum 2, and the pin sleeve body 3 is horizontally clamped in the middle area of ​​the rotating drum 2 by the clamping mechanisms on both sides of the rotating drum 2, and then the outer walls of the pin sleeve body 3 are drilled at the same time by the drilling mechanisms at the two end positions, and the rotating drum 2 carries the pin sleeve body 3 The inclination angle between the pin sleeve body 3 and the hole-turning mechanism can be rotated and adjusted. The position of the drilling mechanism relative to the pin sleeve body 3 can be adjusted through the activity between the drilling mechanism and the rotating drum 2, so that multi-station drilling operations can be performed on both sides of the outer wall of the pin sleeve body 3 at the same time. On the one hand, the processing efficiency is improved. On the other hand, the drilling operations are performed on both sides of the pin sleeve body 3 at the same time, and the horizontal forces acting on both sides of the pin sleeve body 3 can be offset, thereby improving the buffering effect of mechanical vibration of the pin sleeve body 3 in the horizontal direction, thereby avoiding the loosening between the pin sleeve body 3 and the clamping mechanism caused by vibration and affecting the hole opening effect; in addition, the clamping mechanisms on both sides are connected to the rotating drum 2, so that the mechanical vibration transmitted to the clamping mechanism by the pin sleeve body 3 is dispersed along the circumferential direction on both sides of the rotating drum 2 and offset each other, thereby further improving the stability and effectiveness of continuous hole opening for the pin sleeve body 3.

[0035] In the present invention, a cover plate 10 with an annular structure is fixed to the top of the external frame 1, and the top of the rotating drum 2 is in sliding contact with the bottom of the cover plate 10. A motor 2 11 is fixed to the top of the cover plate 10. The output shaft of the motor 2 11 extends downward to the position between the external frame 1 and the rotating drum 2. The output shaft of the motor 2 11 is installed with a gear 12. A tooth groove 202 meshing with the gear 12 is provided at the top position of the circumferential outer wall of the rotating drum 2. A plurality of connecting frames 9 are fixed to the bottom end of the external frame 1. The connecting frames 9 extend horizontally toward the rotating drum 2. The bottom end of the rotating drum 2 is in sliding contact with the connecting frames 9. The rotating drum 2 can be rotated by a certain angle in the circumferential direction through the motor 2 11 and the gear 12 to realize the change and adjustment of the angle of the pin shaft sleeve body 3 relative to the drilling mechanism.

[0036] In the present invention, a plurality of vertically placed support frames 23 are fixed to the bottom end of the external frame 1, and a storage box 24 is arranged at the bottom end of the external frame 1. The storage box 24 is slidingly arranged with the inner sides of the four support frames 23. Through the through openings at the top and bottom ends of the external frame 1 and the rotating drum 2, the top area between the external frame 1 and the rotating drum 2 is covered by the cover plate 10, and the opening above the rotating drum 2 is convenient for placing the workpiece, and the openings below the rotating drum 2 and below between the rotating drum 2 and the external frame 1 are convenient for debris to fall and be collected directly, thereby avoiding residual debris around the processing position and affecting the subsequent hole opening operation of the same pin sleeve, thereby improving the actual processing effect and processing efficiency of the hole opening on the outer wall of the pin sleeve body 3.

[0037] In the present invention, the clamping mechanism is provided with a cylinder 6 connected to the rotating drum 2, and a pressure block 7 is installed at one end of the cylinder 6 facing the pin shaft sleeve body 3. The drilling mechanism is provided with a drilling rig 4, and the output shaft of the drilling rig 4 is arranged toward the direction of the pin shaft sleeve body 3. The output shaft of the drilling rig 4 is installed with a drill bit 401. The outer wall of the drilling rig 4 is installed with a connecting plate 17, and the connecting plate 17 is extended in the vertical direction. The side wall of the connecting plate 17 away from the pin shaft sleeve body 3 is connected to a horizontally placed electric push rod 16. When in use, the drill bit 401 is rotated by the drilling rig 4, and the drill bit 401 is approached and pushed toward the pin shaft sleeve body 3 by the electric push rod 16.

[0038] A multi-station processing technology for a roller pin workpiece mounting hole comprises the following steps:

[0039] S1: Place the pin sleeve body 3 to be drilled in the middle of the drum 2 by a robot or manually, and fix the pin sleeve body 3 at the center of the drum 2 by a clamping mechanism;

[0040] S2: The rotating drum 2 is rotated to rotate the pin sleeve body 3 in the horizontal direction, so as to adjust the corresponding position of the pin sleeve body 3 and the drilling mechanism;

[0041] S3: At the same time, the drilling mechanism can be moved relative to the rotating drum 2 to adjust the corresponding position of the drilling mechanism;

[0042] S4: Then the drilling mechanism is started to perform drilling operations on both sides of the pin sleeve body 3 at the same time, so as to perform drilling operations at different positions outside the pin sleeve body 3 at different angles.

[0043] Example 2: Based on Example 1, Figure 1-Figure 6A multi-station processing device for roller pin workpiece mounting holes, wherein rotating holes 201 are arranged at positions corresponding to the cylinder 6 on the inner walls of both sides of the rotating drum 2, and the inner walls of the rotating holes 201 are rotatably connected with a rotating box 5 through a bearing, and the rotating box 5 is arranged with an opening at one end facing the cylinder 6, and the cylinder 6 and the rotating box 5 are fixedly installed, and a motor 8 is installed on one side of the outer wall of the rotating drum 2, and a mounting frame is fixed between the motor 8 and the outer wall of the rotating drum 2, and the output shaft of the motor 8 is fixed to one of the rotating boxes 5, so that the pressing block 7 is pushed inward by the cylinders 6 on both sides to clamp the pin sleeve body 3, and the cylinders 6 on both sides extend The adjustment of the elongation can adjust the clamping position of the pin sleeve body 3 horizontally, thereby adjusting the corresponding position between the pin sleeve body 3 and the drilling mechanism; at the same time, during the positioning and hole opening process, the pin sleeve body 3 can be rotated at a certain angle by the motor 8, so that the rotating drum 2 can rotate the pin sleeve body 3 around the vertical axis, the cylinder 6 adjusts the horizontal position of the pin sleeve body 3, and the motor 8 deflects the pin sleeve body 3, so that different angles can be opened at different positions on the outside of the pin sleeve body 3, so as to avoid the need to constantly re-fix the workpiece and cause multiple extrusion and wear of the workpiece clamping position.

[0044] Example 3: Based on Example 1 or Example 2, refer to Figure 1-Figure 7 A multi-station processing device for a roller pin workpiece mounting hole, wherein an arc-shaped electric guide rail 14 is installed at a position corresponding to an electric push rod 16 on an external frame 1, and a horizontally extending electric guide rail 2 15 is connected to the electric guide rail 14, and the electric push rod 16 is connected to the electric guide rail 2 15, so that the electric guide rail 14 drives the electric push rod 16 and the drill bit 401 to deflect around the circumferential direction of a rotating drum 2, so that vertical holes and inclined holes can be opened on both sides of a pin sleeve body 3 at the same time, and the horizontally extending electric guide rail 2 15 can be set to adjust the position of the drill bit 401 relative to the center of the rotating drum 2, so that hole opening operations can be performed at different positions on both sides of the pin sleeve body 3 at the same time, thereby achieving a multi-station processing effect on the pin sleeve body 3 and improving the processing efficiency.

[0045] In the present invention, the end of the connecting plate 17 away from the electric push rod 16 is connected with a balance rod 18, and the balance rod 18 extends horizontally in a direction away from the pin shaft sleeve body 3. The electric push rods 16 located at both ends of the rotating drum 2 are symmetrically arranged in the vertical direction, that is, one of the electric push rods 16 is located below the drilling rig 4 and the corresponding balance rod 18 is located above the drilling rig 4, and the other electric push rod 16 is located above the drilling rig 4 and the corresponding balance rod 18 is located below the drilling rig 4. A through groove 203 is opened on the rotating drum 2 at a position corresponding to the balance rod 18 and the telescopic rod of the electric push rod 16. The through groove 203 is arranged in an arc-shaped structure, so as to ensure the stability of the deflection adjustment direction of the drilling mechanism, and improve the stability of the drilling mechanism during the drilling operation through the limit of the through groove 203 and the setting of the balance rod 18. At the same time, the vibration generated by the operation of the drilling mechanism is dispersed to the circumferential direction of the rotating drum 2 through the balance rod 18 and the telescopic rod of the electric push rod 16, so that the mechanical vibrations transmitted by the drilling mechanism and the clamping mechanism offset each other, thereby further improving the stability of the overall equipment for long-term operation.

[0046] In the present invention, a slider 19 is slidably connected in the through groove 203, and through holes are provided at the ends of the slider 19 and at positions corresponding to the balance bar 18 and the telescopic rod of the electric push rod 16. The balance bar 18 and the telescopic rod of the electric push rod 16 are in sliding contact with the inner wall of the through hole. Both sides of the slider 19 are provided with sliders 20 slidably connected with the inner wall of the through groove 203, and a spring 21 is connected between the sliders 19 and the sliders 20. The tops of the sliders 19 and the sliders 20 are fixed with a limiting portion 22 in sliding contact with the inner wall and the outer wall of the rotating drum 2, so that the balance bar 18 and the electric push rod 16 can slide and contact with each other. The telescopic rod of the push rod 16 can move along the perforation in the slider 19, while making the slider 19 and the slider 2 20 move around the circumference of the drum 2 along with the balance bar 18 and the electric push rod 16. During the hole-drilling operation, the slider 2 20 connected by the springs 21 on both sides of the slider 19 is used to buffer the mechanical vibration in the horizontal direction, and the mechanical vibration transmitted outward by the drilling mechanism is dispersed to the vertical direction of the drum 2 through the limit portion 22, thereby further improving the stability of the drilling operation to ensure the stability of the drilling of the pin sleeve body 3 and the hole-drilling efficiency.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-station processing device for roller pin workpiece mounting holes, comprising a clamping mechanism and a drilling mechanism, characterized in that: It also includes an external frame (1) and a rotating drum (2); The external frame (1) is configured as a cylindrical structure having the same axis as the rotating drum (2); the rotating drum (2) is rotatably arranged along the axis in the external frame (1); two groups of clamping mechanisms are provided, and the two groups of clamping mechanisms are arranged at two sides of the rotating drum (2); a pin sleeve body (3) placed horizontally is clamped between the two clamping mechanisms; The drilling mechanisms are provided in two groups, and the two groups of drilling mechanisms are arranged at two end positions in the rotating drum (2), and the drilling mechanisms are movably arranged around the circumferential direction of the rotating drum (2).

2. A multi-station processing device for roller pin workpiece mounting holes according to claim 1, characterized in that: A cover plate (10) with an annular structure is fixed to the top of the external frame (1), a second motor (11) is fixed to the top of the cover plate (10), a gear (12) is installed on the output shaft of the second motor (11), a tooth groove (202) meshing with the gear (12) is provided at the top position of the circumferential outer wall of the rotating drum (2), and a plurality of connecting frames (9) are fixed to the bottom end of the external frame (1), and the bottom end of the rotating drum (2) is in sliding contact with the connecting frames (9).

3. A multi-station processing device for roller pin workpiece mounting holes according to claim 2, characterized in that: A plurality of vertically placed support frames (23) are fixed to the bottom end of the external frame (1), and a storage box (24) is arranged at the bottom end of the external frame (1), wherein the storage box (24) is slidably arranged inside the four support frames (23).

4. A multi-station processing device for roller pin workpiece mounting holes according to any one of claims 1 to 3, characterized in that: The clamping mechanism is provided with a cylinder (6) connected to the rotating drum (2), and a pressure block (7) is installed at one end of the cylinder (6) facing the pin sleeve body (3).

5. A multi-station processing device for roller pin workpiece mounting holes according to claim 4, characterized in that: The inner walls of both sides of the rotating drum (2) are provided with rotating holes (201), the inner walls of the rotating holes (201) are rotatably connected to rotating boxes (5) via bearings, the cylinder (6) is fixedly mounted between the rotating boxes (5), and a motor 1 (8) is mounted on one side of the outer wall of the rotating drum (2), and the output shaft of the motor 1 (8) is fixedly mounted between one of the rotating boxes (5).

6. A multi-station processing device for roller pin workpiece mounting holes according to any one of claims 1 to 3, characterized in that: The drilling mechanism is provided with a drilling machine (4), the output shaft of the drilling machine (4) is installed with a drill bit (401), the outer wall of the drilling machine (4) is installed with a connecting plate (17), the connecting plate (17) is extended in the vertical direction, and the side wall of the connecting plate (17) is connected to a horizontally placed electric push rod (16).

7. A multi-station processing device for roller pin workpiece mounting holes according to claim 6, characterized in that: An electric guide rail 1 (14) with an arc-shaped structure is installed at a position on the external frame (1) corresponding to the electric push rod (16); a horizontally extending electric guide rail 2 (15) is connected to the electric guide rail 1 (14); and the electric push rod (16) and the electric guide rail 2 (15) are connected.

8. The multi-station processing device for roller pin workpiece mounting holes according to claim 7, characterized in that: The end of the connecting plate (17) away from the electric push rod (16) is connected to a balancing rod (18), the balancing rod (18) extends horizontally in a direction away from the pin sleeve body (3), the electric push rods (16) located at both ends of the rotating drum (2) are symmetrically arranged in the vertical direction, and the rotating drum (2) is provided with a through groove (203) at a position corresponding to the balancing rod (18) and the telescopic rod of the electric push rod (16), and the through groove (203) is arranged in an arc-shaped structure.

9. A multi-station processing device for roller pin workpiece mounting holes according to claim 8, characterized in that: A slider 1 (19) is slidably connected in the through groove (203), and through holes are provided at the ends of the slider 1 (19) at positions corresponding to the balance rod (18) and the telescopic rod of the electric push rod (16). Slide 2 (20) slidably connected to the inner wall of the through groove (203) is provided on both sides of the slider 1 (19), a spring (21) is connected between the slider 1 (19) and the slider 2 (20), and a limiting portion (22) slidably contacting the inner wall and the outer wall of the rotating drum (2) is fixed to the top of the slider 1 (19) and the slider 2 (20).

10. A multi-station processing technology for roller pin workpiece mounting holes, according to the multi-station processing device for roller pin workpiece mounting holes according to claim 1, characterized in that: The following steps are involved: S1: placing the pin sleeve body (3) to be drilled in the middle of the rotating drum (2) by a robot or manually, and fixing the pin sleeve body (3) at the center of the rotating drum (2) by a clamping mechanism; S2: rotating the rotating drum (2) to rotate the pin sleeve body (3) in the horizontal direction, thereby adjusting the position of the pin sleeve body (3) corresponding to the drilling mechanism; S3: simultaneously moving the drilling mechanism relative to the rotating drum (2) to adjust the corresponding position of the drilling mechanism; S4: Then the drilling mechanism is started to perform drilling operations on both sides of the pin sleeve body (3) at the same time, so as to perform drilling operations at different positions outside the pin sleeve body (3) at different angles.

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