CN118617162A - An automatic positioning system for shaft sleeves to be processed - Google Patents

Abstract

An automatic positioning system for a shaft sleeve to be processed is characterized in that a positioning groove is formed in the axial end face of the shaft sleeve to be processed. The automatic positioning system for the shaft sleeve to be processed comprises an automatic positioning device. The automatic positioning device comprises a shaft sleeve positioning seat, a shaft sleeve carrying mechanism and a spinning mechanism. Each shaft sleeve positioning seat comprises a base, a shaft sleeve guide seat and a positioning assembly. The positioning assembly comprises a guide rod, an elastic piece, a positioning pin and a displacement sensor. The displacement sensor is used for sensing the position change of the locating pin, which is close to one end of the displacement sensor. The spinning mechanism comprises a supporting frame, a lifting unit and a rotating unit. This an automatic positioning system for waiting to process axle sleeve satisfies to wait to process the automatic positioning to the axle sleeve, guarantees that the oilhole position on the axle sleeve of waiting to process keeps the size requirement with the constant head tank to and the position is accurate, has improved the production efficiency of product.

Description

An automatic positioning system for shaft sleeves to be processed

Technical Field

The invention belongs to the technical field of shaft sleeve processing equipment, in particular to an automatic positioning system for a shaft sleeve to be processed.

Background Art

The sleeve is a mechanical part that supports the rotation of the shaft. It slides and rubs against the shaft, so it is also called a sliding bearing. Since the sliding sleeve needs lubricant during the friction with the shaft, it is necessary to design the oil hole of the sleeve and match the oil hole of the bearing base. Therefore, this matching will cause trouble in the processing of the oil hole.

As shown in FIG1 , there is an unprocessed sleeve 1 with positioning grooves, on which two oil grooves 2 are symmetrically distributed on the inner side, and a positioning groove 3 is arranged on the end face of the sleeve 1 to be processed. During the processing of the sleeve 1 to be processed, the positions of the oil groove 2 and the positioning groove 3 need to be positioned to meet the positioning requirements of the subsequent processing of two oil holes on the sleeve 1 to be processed, and at the same time, the position of the oil hole and the size requirements of the positioning groove 3 must be ensured. However, the processing of the sleeve 1 to be processed is currently carried out by manual positioning, which is not conducive to improving production efficiency and cannot guarantee product quality.

Summary of the invention

In view of this, the present invention provides an automatic positioning system for a shaft sleeve to be processed, which can improve processing efficiency and meet industrial needs.

An automatic positioning system for a sleeve to be processed, wherein a positioning groove is provided on the axial end surface of the sleeve to be processed. The automatic positioning system for the sleeve to be processed includes an automatic positioning device for positioning the sleeve to be processed. The automatic positioning device includes at least one sleeve positioning seat, at least one sleeve conveying mechanism arranged on one side of the sleeve positioning seat, and at least one spinning mechanism arranged on one side of the sleeve positioning seat. Each sleeve positioning seat includes a base, a sleeve guide seat rotatably connected to the base, and a positioning assembly fixedly arranged on the base. The positioning assembly is arranged on the base and close to one side of the sleeve guide seat. The sleeve guide seat includes an upper cylinder, a middle cylinder, and a lower cylinder in sequence. The diameter of the upper cylinder is equivalent to the inner diameter of the sleeve to be processed, the diameter of the middle cylinder is larger than the diameter of the upper cylinder, and the lower cylinder is rotatably connected relative to the base. The positioning assembly includes a guide rod fixedly connected to the base, an elastic member sleeved on the guide rod, a positioning pin slidably connected to the free end of the guide rod and abutting against one end of the elastic member, and a displacement sensor arranged on the base. The displacement sensor is used to sense the position change of the positioning pin close to one end of the displacement sensor. The spinning mechanism includes a support frame, a lifting unit arranged on the support frame, and a rotating unit arranged on the lifting unit. When the sleeve conveying mechanism clamps the sleeve to be processed and installs it on the sleeve positioning seat, the positioning pin abuts against the end surface of the sleeve to be processed, and the spinning mechanism presses down the sleeve to be processed mounted on the sleeve positioning seat and drives the sleeve to be processed and the sleeve guide seat to rotate, so that the positioning pin of the positioning assembly is pressed down so that the positioning pin moves toward one end of the displacement sensor and toward the side close to the displacement sensor, when the displacement sensor senses the height change of the positioning pin and sends a signal and maintains the signal to control the spinning mechanism to rotate all the time, when the sleeve to be processed rotates, the positioning pin is inserted into the positioning groove, and the positioning pin is lifted up and stuck to the sleeve to be processed under the elastic force of the elastic member so as to prevent it from rotating to complete the positioning of the sleeve to be processed.

Furthermore, the automatic positioning system for the sleeve to be processed includes at least one sleeve transmission unit for transmitting the sleeve to be processed, and each of the sleeve transmission units includes a loading conveyor and a unloading conveyor.

Furthermore, the free end of the positioning pin forms an acute angle.

Furthermore, the lifting unit includes a lifting cylinder arranged on the support frame, a lifting plate connected to the lifting cylinder, and the rotating unit includes a driving motor arranged on the lifting plate, and a pressure cover arranged on the output end of the driving motor.

Furthermore, the automatic positioning device also includes a base plate for carrying the sleeve positioning seat, the sleeve transport mechanism and the spinning mechanism, and a movable plate assembly slidably arranged on the base plate and used to carry the sleeve positioning seat, the movable plate assembly includes a movable plate slidably connected to the base plate, and a movable plate driving device arranged on the base plate and arranged on one side of the movable plate.

Furthermore, the sleeve transporting mechanism includes a sleeve transporting support seat arranged on the base plate, a translational sliding unit arranged on the sleeve transporting support seat, a vertical sliding unit arranged on the translational sliding unit, and a transporting clamp arranged on the vertical sliding unit, and the sliding directions of the translational sliding unit and the vertical sliding unit are perpendicular to each other.

Furthermore, the translation sliding unit includes a translation sliding driving device arranged on the sleeve transport support seat, and a translation base plate arranged on the translation sliding driving device.

Furthermore, the vertical sliding unit includes a vertical driving device arranged on the translation base plate, and a vertical moving base plate arranged on the vertical driving device.

Furthermore, the automatic positioning system for the sleeve to be processed also includes at least one transfer device arranged on one side of the automatic positioning device and used to transfer the sleeve to be processed, and the transfer device includes a robotic arm and a transfer clamping device arranged on the robotic arm.

Furthermore, the transfer clamping device includes a mounting base for connecting the robot arm, a cylinder body fixedly connected to the mounting base, two air claws arranged on the cylinder body, and two clamps respectively arranged on the air claws.

Compared with the prior art, the automatic positioning system for the sleeve to be processed provided by the present invention realizes the automatic positioning of the sleeve to be processed through the automatic positioning device. Specifically, when the sleeve transport mechanism clamps and installs the sleeve to be processed on the sleeve positioning seat, the spinning mechanism presses down the sleeve to be processed on the sleeve positioning seat and drives the sleeve to be processed to rotate. If the positioning pin fails to be directly inserted into the positioning of the sleeve to be processed and abuts against the end face of the sleeve to be processed, the positioning pin is pressed down and the elastic member is also compressed, so that the positioning pin faces one end of the displacement sensor and is close to the displacement sensor. The displacement sensor senses the positioning pin and sends a signal and maintains the signal. At this time, the spinning mechanism keeps rotating, and during the rotation of the sleeve to be processed, the positioning pin is inserted into the positioning groove of the sleeve to be processed. At this time, the positioning pin is reset under the elastic force of the elastic member, thereby jamming the sleeve to be processed and preventing it from rotating. At this time, the displacement sensor signal is interrupted and the spinning mechanism stops rotating, and the positioning of the sleeve to be processed is completed. If the positioning pin can be directly inserted into the positioning groove of the sleeve to be processed when the sleeve transport mechanism transfers the sleeve to be processed to the sleeve positioning seat, the displacement sensor does not send a control signal, and the spinning mechanism is stationary, and it is considered that the sleeve to be processed is also positioned. Therefore, the automatic positioning system for the sleeve to be processed can realize the automatic positioning of the sleeve to be processed, while saving time and manpower in the positioning process, ensuring that subsequent automated processing such as flushing the oil hole can be carried out smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the structure of a shaft sleeve to be processed.

FIG. 2 is a schematic structural diagram of an automatic positioning system for a shaft sleeve to be processed provided by the present invention.

FIG3 is a schematic diagram of a partially enlarged structure of an automatic positioning system for a shaft sleeve to be processed provided by the present invention at position A. FIG.

FIG. 4 is a schematic structural diagram of a shaft sleeve positioning seat in the automatic positioning system for a shaft sleeve to be processed in FIG. 2 .

FIG. 5 is a schematic structural diagram of a sleeve transport mechanism in the automatic positioning system for the sleeve to be processed in FIG. 2 .

FIG. 6 is a schematic structural diagram of a spinning mechanism in the automatic positioning system for a sleeve to be processed in FIG. 2 .

FIG. 7 is a schematic structural diagram of a transfer clamping device provided by the present invention for an automatic positioning system for a shaft sleeve to be processed.

Figure numerals: 1. shaft sleeve to be processed, 2. oil groove, 3. positioning groove, 10. shaft sleeve transmission unit, 11. feeding conveyor, 12. unloading conveyor, 20. automatic positioning device, 21. bottom plate, 22. movable plate assembly, 221. movable plate, 222. movable plate driving device, 23. shaft sleeve positioning seat, 231. base, 232. shaft sleeve guide seat, 2321. upper cylinder, 2322. middle cylinder, 2323. lower cylinder, 233. positioning assembly, 2331. guide rod, 2332. elastic member, 2333. positioning pin, 2334. displacement sensor, 24. shaft sleeve transport mechanism, 2 41. Bushing transport support seat, 242. Translational sliding unit, 2421. Translational sliding drive device, 2422. Translational base plate, 243. Vertical sliding unit, 2431. Vertical drive device, 2432. Vertical movable base plate, 244. Transport clamp, 25. Spinning mechanism, 251. Support frame, 252. Lifting unit, 2521. Lifting cylinder, 2522. Lifting plate, 253. Rotating unit, 2531. Drive motor, 2532. Pressure cover, 30. Transfer device, 31. Transfer clamping device, 311. Mounting base, 312. Cylinder body, 313. Air claw, 314. Clamp.

DETAILED DESCRIPTION

The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

As shown in Figures 2 to 7, they are schematic diagrams of the structure of an automatic positioning system for a sleeve to be processed provided by the present invention. The automatic positioning system for the sleeve to be processed includes at least one sleeve transmission unit 10 for transmitting the sleeve to be processed 1, an automatic positioning device 20 arranged on one side of the sleeve transmission unit 10 and used to position the sleeve to be processed 1, and a transfer device 30 arranged on one side of the automatic positioning device 20 and used to transfer the sleeve to be processed 1. The automatic positioning system for the sleeve to be processed also includes some other functional modules, such as assembly components, electrical connection components, etc., which should be technologies known to those skilled in the art and will not be described in detail one by one here.

A positioning groove 3 is provided on the axial end surface of the shaft sleeve 1 to be processed, and the positioning groove 3 is used to cooperate with the automatic positioning device 20 to realize the positioning of the shaft sleeve 1 to be processed, so as to meet the positioning requirements of the subsequent processing of the oil hole on the shaft sleeve 1 to be processed.

The sleeve transmission unit 10 can be one or more according to production requirements. The sleeve transmission unit 10 is arranged on one side of the automatic positioning device 20. One end of each sleeve transmission unit 10 leads to the automatic positioning device 20 to transmit the sleeve 1 to be processed into the automatic positioning device 20, and the sleeve transmission unit 10 is also used to receive and output the sleeve after processing and forming transferred from the transfer device 30. Specifically, each sleeve transmission unit 10 includes a loading conveyor 11 and a unloading conveyor 12. The loading conveyor 11 is used to transfer the sleeve 1 to be processed to one side of the automatic positioning device 20. The unloading conveyor 12 is used to receive and output the sleeve after processing and forming transferred from the transfer device 30. The loading conveyor 11 and the unloading conveyor 12 are both a device used to move raw materials, semi-finished products or finished products from one location to another in industrial production. The loading conveyor 11 and the unloading conveyor 12 can be any one of a belt conveyor, a roller conveyor, and a chain conveyor. Therefore, the loading conveyor 11 and the unloading conveyor 12 are both existing technologies, and their structures and working principles are not repeated here.

The automatic positioning device 20 includes a base plate 21, a movable plate assembly 22 slidably arranged on the base plate 21, at least one sleeve positioning seat 23 arranged on the movable plate assembly 22, at least one sleeve conveying mechanism 24 arranged on one side of the sleeve positioning seat 23, and at least one spinning mechanism 25 arranged on one side of the sleeve positioning seat 23.

The base plate 21 is used to carry the movable plate assembly 22, the sleeve positioning seat 23, the sleeve conveying mechanism 24, and the spinning mechanism 25, and assemble the movable plate assembly 22, the sleeve positioning seat 23, the sleeve conveying mechanism 24, and the spinning mechanism 25 into a whole.

The movable plate assembly 22 includes a movable plate 221 slidably connected to the base plate 21, and a movable plate driving device 222 arranged on the base plate 21 and arranged on one side of the movable plate 221. The movable plate 221 is slidably connected to the base plate 21, and the movable plate 221 is used to carry the shaft sleeve positioning seat 23. In this embodiment, a guide rail assembly (not shown) is arranged between the movable plate 221 and the base plate 21, and a sliding structure is formed between the movable plate 221 and the base plate 21 through the guide rail assembly. It is a prior art that the guide rail assembly is arranged between the movable plate 221 and the base plate 21 to form a sliding connection structure. The movable plate driving device 222 can be a servo linear module. The servo linear module is a precise linear motion system that converts the rotational motion of the servo motor into linear motion. The movable plate driving device 222 drives the movable plate 221 to slide, so as to realize the position change of the movable plate 221. In this embodiment, the movable plate 221 is arranged on one side of the base plate 21, the movable plate driving device 222 is arranged on the side of the base plate 21 facing away from the movable plate 221, and a through hole (not shown) is arranged on the base plate 21, one end of the movable plate driving device 222 passes through the through hole and is interconnected with the movable plate 221, thereby realizing that the movable plate driving device 222 drives the movable plate 221 to move.

One or more sleeve positioning seats 23 may be provided, and the number thereof may be the same as the number of the sleeve transporting mechanisms 24. In the present embodiment, there are two sleeve positioning seats 23. Each sleeve positioning seat 23 corresponds to one sleeve transporting mechanism 24, that is, one sleeve positioning seat 23 and one sleeve transporting mechanism 24 form a group. The sleeve transporting mechanism 24 transports the sleeve 1 to be processed to the sleeve positioning seat 23, and the sleeve positioning seat 23 positions the sleeve 1 to be processed. Each sleeve positioning seat 23 includes a base 231 provided on the movable plate assembly 22, a sleeve guide seat 232 rotatably connected to the base 231, and a positioning assembly 233 fixedly provided on the base 231.

The base 231 is fixed on the movable plate 221 of the movable plate assembly 22 , so that during the sliding process of the movable plate assembly 22 , the shaft sleeve positioning seat 23 can move synchronously.

The sleeve guide seat 232 is used to sleeve the sleeve 1 to be processed to position the sleeve 1 to be processed. The sleeve guide seat 232 includes an upper cylinder 2321, a middle cylinder 2322, and a lower cylinder 2323 in sequence. The diameter of the upper cylinder 2321 is equivalent to the inner diameter of the sleeve 1 to be processed, and the diameter of the middle cylinder 2322 is larger than the diameter of the upper cylinder 2321, so that a step structure is formed at the connection position between the upper cylinder 2321 and the middle cylinder 2322. When the sleeve guide seat 232 is sleeved with the sleeve 1 to be processed, the sleeve 1 to be processed is sleeved on the upper cylinder 2321 to limit the position of the sleeve 1 to be processed on the sleeve guide seat 232. The lower cylinder 2323 is rotatably connected relative to the base 231, wherein a ball bearing (not shown) is arranged between the lower cylinder 2323 and the base 231 to ensure that the sleeve guide seat 232 and the base 231 are fixed to each other and can rotate axially.

The positioning assembly 233 is arranged on the base 231 and close to one side of the sleeve guide seat 232, and includes a guide rod 2331 fixedly connected to the base 231, an elastic member 2332 sleeved on the guide rod 2331, a positioning pin 2333 slidably connected to the free end of the guide rod 2331 and abutting against one end of the elastic member 2332, and a displacement sensor 2334 arranged on the base 231. The displacement sensor 2334 is used to sense the position change of the positioning pin 2333 close to one end of the displacement sensor 2334. As is well known, the displacement sensor 2334 is a sensor used to detect the position or displacement of an object. Therefore, the displacement sensor 2334 is a prior art and is not described here. The displacement sensor 2334 is used to sense the height change of the positioning pin 2333. The height change information of the positioning pin 2333 is sensed by the displacement sensor 2334 to control the action of the spinning mechanism 25. The free end of the positioning pin 2333 is at an acute angle, so that the positioning pin 2333 can be inserted into the positioning groove 3 in the shaft sleeve 1 to be processed. The acute angle structure of the positioning pin 2333 can provide a guiding effect, thereby reducing the insertion difficulty caused by angle deviation when the positioning pin 2333 is inserted into the positioning groove 3 in the shaft sleeve 1 to be processed.

The positioning pin 2333 is located on the side wall of the sleeve guide seat 232, and the free end of the positioning pin 2333 faces the upper cylinder 2321 on the sleeve guide seat 232, and the free end of the positioning pin 2333 is higher than the middle cylinder 2322, so that the end surface of the end of the sleeve to be processed 1 set on the sleeve guide seat 232 with the positioning groove 3 is abutted against the free end of the positioning pin 2333. The positioning pin 2333 is slidably arranged on the guide rod 2331. In this embodiment, a blind hole (not shown) is arranged at one end of the positioning pin 2333 facing the guide rod 2331, and the guide rod 2331 is inserted into the blind hole. The insertion depth of the guide rod 2331 in the blind hole can be limited by setting the depth of the blind hole. One end of the elastic member 2332 is always in contact with one end of the positioning pin 2333, so that when the positioning pin 2333 slides along the positioning pin 2333, the elastic member 2332 can realize the reset of the positioning pin 2333. The elastic member 2332 is a component that can be deformed by external force and can return to its original shape after the external force is removed. In this embodiment, the elastic member 2332 is a spring, and the positioning pin 2333 is reset by the elastic force of the spring. The elastic member 2332 is a prior art and will not be described in detail here.

When the sleeve locating seat 23 positions the sleeve 1 to be processed, the sleeve 1 to be processed is transported to the sleeve locating seat 23 by the sleeve transporting mechanism 24, and when the locating pin 2333 fails to be inserted into the locating groove 3 in the sleeve 1 to be processed, the spinning mechanism 25 presses down the sleeve 1 to be processed mounted on the sleeve locating seat 23 and drives the sleeve 1 to be processed to rotate, so that the locating pin 2333 of the sleeve locating seat 23 is pressed down, and the elastic member 2332 is compressed, so that the locating pin 2333 moves toward one end of the displacement sensor 2334 and toward the side close to the displacement sensor 2334. At this time, the displacement sensor 2334 senses the height change of the locating pin 2333 and sends a signal and maintains the signal to control the spinning mechanism 25 to keep moving, that is, the spinning mechanism 25 will keep driving the sleeve 1 to be processed to rotate before being pressed into place. When the positioning groove 3 of the shaft sleeve 1 to be processed rotates to the position of the positioning pin 2333, the positioning pin 2333 is lifted up under the elastic force of the elastic member 2332, so that the positioning pin 2333 is inserted into the positioning groove 3, thereby half-jamming the shaft sleeve 1 to be processed and unable to rotate. At this time, the signal of the displacement sensor 2334 is interrupted, indicating that the positioning of the shaft sleeve 1 to be processed has been completed. At this time, the spinning mechanism 25 also stops rotating. Then the movable plate driving device 222 in the movable plate assembly 22 controls the movable plate 221 to move to an open space away from one end of the shaft sleeve transmission unit 10, so that the transfer device 30 can grab it. When the shaft sleeve conveying mechanism 24 transfers the shaft sleeve 1 to be processed to the shaft sleeve positioning seat 23, and the positioning pin 2333 can be directly inserted into the positioning groove 3 in the shaft sleeve 1 to be processed, the displacement sensor 2334 does not send a control signal, and the spinning mechanism 25 is stationary. At this time, the sleeve 1 to be processed on the sleeve positioning seat 23 is considered to be positioned. At this time, the movable plate driving device 222 in the movable plate assembly 22 controls the movable plate 221 to move to an open space away from one end of the sleeve transmission unit 10, and then grabs it through the transfer device 30.

The sleeve transport mechanism 24 includes a sleeve transport support seat 241 arranged on the base plate 21, a translation sliding unit 242 arranged on the sleeve transport support seat 241, a vertical sliding unit 243 arranged on the translation sliding unit 242, and a transport clamp 244 arranged on the vertical sliding unit 243.

The sliding directions of the translation sliding unit 242 and the vertical sliding unit 243 are perpendicular to each other, so as to drive the transport clamp 244 to move in different directions, thereby driving the transport clamp 244 to move to a designated position.

The translation sliding unit 242 includes a translation sliding driving device 2421 disposed on the sleeve transport support seat 241, and a translation bottom plate 2422 disposed on the translation sliding driving device 2421. The translation sliding driving device 2421 is a cylinder and a guide rail combination structure, the translation bottom plate 2422 is disposed on the cylinder driving end, and the translation bottom plate 2422 is slidably connected to the guide rail to achieve smooth sliding of the translation bottom plate 2422.

The vertical sliding unit 243 includes a vertical driving device 2431 disposed on the translation bottom plate 2422, and a vertical moving bottom plate 2432 disposed on the vertical driving device 2431. The vertical driving device 2431 is also a cylinder and a guide rail combination structure, the vertical moving bottom plate 2432 is disposed at the driving end of the cylinder, and the vertical moving bottom plate 2432 is slidably connected to the guide rail to achieve smooth movement of the vertical moving bottom plate 2432.

The translational sliding drive device 2421 drives the translational base plate 2422 to move horizontally, and the vertical drive device 2431 drives the vertical moving base plate 2432 to move vertically. In this embodiment, the translational sliding drive device 2421 and the vertical drive device 2431 are both cylinders, which are mechanical elements that use compressed air or hydraulic oil to generate linear motion. The translational sliding drive device 2421 and the vertical drive device 2431 are a prior art and will not be described in detail here.

The carrying clamp 244 is arranged on the vertical movable base plate 2432. The carrying clamp 244 is used to clamp and carry the sleeve 1 to be processed. The carrying clamp 244 can be pneumatic, electric, or hydraulic. It is designed according to the application scenario and the weight and shape of the object to be carried. The carrying clamp 244 can be any one of a pneumatic clamp, an electric clamp, a magnetic clamp, and a suction cup clamp. The carrying clamp 244 is a prior art and will not be repeated here.

The spinning mechanism 25 includes a support frame 251 disposed on the bottom plate 21, a lifting unit 252 disposed on the support frame 251, and a rotating unit 253 disposed on the lifting unit 252. The support frame 251 is used to support the lifting unit 252 and the rotating unit 253, and the lifting unit 252 and the rotating unit 253 form a whole. The lifting unit 252 drives the rotating unit 253 to achieve lifting, and the rotating unit 253 is used to drive the to-be-processed sleeve 1 on the sleeve guide seat 232 to rotate.

The lifting unit 252 includes a lifting cylinder 2521 disposed on the support frame 251 and a lifting plate 2522 connected to the lifting cylinder 2521 .

The rotating unit 253 includes a driving motor 2531 disposed on the lifting plate 2522, and a pressure cover 2532 disposed at the output end of the driving motor 2531. The driving motor 2531 drives the pressure cover 2532 to rotate, and the pressure cover 2532 can press the end of the to-be-processed sleeve 1 on the sleeve guide seat 232 facing away from the sleeve guide seat 232, and drives the to-be-processed sleeve 1 to rotate.

When the sleeve conveying mechanism 24 clamps the sleeve 1 to be processed and then sleeves it on the sleeve positioning seat 23, the spinning mechanism 25 presses down the sleeve 1 to be processed on the sleeve positioning seat 23 and drives the sleeve 1 to be processed to rotate. The positioning groove 3 of the sleeve 1 to be processed rotates synchronously during the rotation. When the free end of the positioning pin 2333 is inserted into the positioning groove 3 of the sleeve during the rotation of the positioning groove 3, it indicates that the positioning of the sleeve is completed.

The transfer device 30 can be one or more according to production requirements. The transfer devices 30 are respectively arranged between the machine tool (not shown) and the sleeve positioning seat 23. Each of the transfer devices 30 transfers the sleeve 1 to be processed after being positioned by the automatic positioning device 20 to the machine tool for processing, and transfers the sleeve processed in the machine tool to a material unloading conveyor 12 in the sleeve transmission unit 10. In this embodiment, only one transfer device 30 is shown. Specifically, each of the transfer devices 30 includes a mechanical arm (not shown) and a transfer clamping device 31 arranged on the mechanical arm (not shown).

The robot arm (not shown) is an automated device that imitates the functions of a human arm and can perform various complex operations. The robot arm is installed between the sleeve transmission unit 10 between the machine tool and the conveyor. The robot arm is a prior art and will not be described in detail here.

The transfer clamping device 31 includes a mounting base 311 for connecting the robot arm, a cylinder body 312 fixedly connected to the mounting base 311, two air claws 313 arranged on the cylinder body 312, and two clamps 314 respectively arranged on the air claws 313. The cylinder body 312 drives the air claws 313 and the clamps 314 to open and close. The clamps 314 are used to clamp the shaft sleeve 1 to be processed. The clamping end face of the clamp 314 is the same as the outer contour of the shaft sleeve 1 to be processed, so that the clamp 314 can clamp the shaft sleeve 1 to be processed stably.

During processing, the shaft sleeve 1 with the positioning groove 3 to be processed is manually placed on the loading conveyor 11 for loading, and the shaft sleeve 1 with the positioning groove 3 to be processed is placed with one end of the positioning groove 3 downward at the storage bin of the loading conveyor 11. After the shaft sleeve 1 to be processed is transported to the specified position by the loading conveyor 11, a displacement sensor (not shown) is set on the loading conveyor 11 and outputs a signal. When the shaft sleeves 1 to be processed of the two loading conveyors 11 arrive at the processing station at the same time, the translation sliding unit 242 of the shaft sleeve transporting mechanism 24 starts to work, so that the translation base plate 2422 in the translation sliding unit 242 moves to the loading side. After it is in place, the inner diameter of the transporting clamp 244 is vertically aligned with the outer diameter of the shaft sleeve 1 to be processed, and then the vertical driving device 2431 on the vertical sliding unit 243 works, so that the vertical moving base plate 2432 drives the transporting clamp 244 to move downward. After it is in place, the transporting clamp 244 clamps the shaft sleeve 1 to be processed.

After the clamping is in place, the vertical driving device 2431 works, so that the vertical moving base plate 2432 drives the carrying clamp 244 to clamp the sleeve 1 to be processed and move upward. After the sleeve is in place, the translation sliding driving device 2421 of the translation sliding unit 242 works, so that the translation base plate 2422 moves to the unloading side. While carrying, the movable plate driving device 222 in the movable plate assembly 22 controls the movable plate 221 to move to a specified position, and the two sleeve positioning seats 23 on the movable plate 221 are respectively aligned with the inner diameter axial direction of the carrying clamp 244 of the two sets of the sleeve carrying mechanism 24 at the unloading position. After the movable plate 221 reaches the designated position, the vertical driving device 2431 in the vertical sliding unit 243 of the sleeve conveying mechanism 24 works to vertically sleeve the sleeve 1 to be processed held by the conveying clamp 244 onto the sleeve guide seat 232, and then the movable plate driving device 222 in the movable plate assembly 22 controls the movable plate 221 to move to the two sleeve positioning seats 23 and axially align with the drive motors 2531 of the two groups of spinning mechanisms 25. After reaching the designated position, the lifting cylinders 2521 of the two groups of spinning mechanisms 25 work simultaneously, pushing the lifting plate 2522 to drive the drive motor 2531 and the pressure cover 2532 to move vertically downward, and the pressure cover 2532 presses the sleeve 1 to be processed downward, so that the positioning pin 2333 of the sleeve positioning seat 23 is pressed down, the elastic member 2332 is compressed, and the displacement sensor 2334 sends a signal and maintains it. After being pressed into place, the drive motor 2531 drives the pressure cover 2532 to start rotating. When the positioning groove 3 of the sleeve 1 to be processed rotates to the position of the positioning pin 2333, the positioning pin 2333 is reset by the elastic member 2332, clamping the sleeve 1 to be processed so that it no longer rotates, and the signal of the displacement sensor 2334 is interrupted. The driving motor 2531 stops rotating, and after the sleeves 1 to be processed at the two stations are positioned through the positioning groove 3, the movable plate driving device 222 in the movable plate assembly 22 controls the movable plate 221 to move to an open space away from one end of the sleeve transmission unit 10, so as to facilitate the transfer device 30 to grab. After the two sleeves 1 to be processed are grabbed, the above operation is repeated for loading.

The robot arm (not shown) in the transfer device 30 is installed between the machine tool and the sleeve transmission unit 10, and the transfer clamping device 31 is installed on the robot arm. When the movable plate 221 moves to an open space, the clamp 314 on one side of the transfer clamping device 31 controlled by the robot arm is aligned with the axial direction of the sleeve guide seat 232 on one side. Then, after vertically moving downward to a suitable position, it is grabbed, and after grabbing, it is vertically upward to make the sleeve 1 to be processed separate from the sleeve guide seat 232. After the robot arm moves to a non-interference position, the posture is changed and it is placed in the machine tool. Then the robot arm releases the air claw 313 in the transfer clamping device 31 and exits the working range of the machine tool. After exiting, the machine tool starts processing, and at the same time, the robot arm uses the transfer clamping device 31 to grab the sleeve 1 to be processed on the sleeve guide seat 232 on the other side in the same way. After grabbing, the robot arm flips the transfer clamping device 31 180°, and the empty transfer clamping device 31 is at the bottom, waiting outside the machine tool. After the machine tool processing is completed, the robot arm controls the transfer clamping device 31 to enter the machine tool, uses the fixture 314 in the empty transfer clamping device 31 to take out the processed sleeve 1, retreats to a non-interference position and flips 180°, so that the unprocessed sleeve 1 is at the bottom, and then puts it into the machine tool to wait for processing. Processing begins after the robot arm exits the working range of the machine tool. After the robot arm exits the machine tool, the processed sleeve is first placed in the unloading conveyor 12, and then the sleeve 1 to be processed with a confirmed position is taken.

Compared with the prior art, the automatic positioning system for the shaft sleeve to be processed provided by the present invention realizes the automatic positioning of the shaft sleeve 1 to be processed through the automatic positioning device 20. Specifically, when the shaft sleeve transport mechanism 24 clamps the shaft sleeve 1 to be processed and installs it on the shaft sleeve positioning seat 23, the spinning mechanism 25 presses down the shaft sleeve 1 to be processed on the shaft sleeve positioning seat 23 and drives the shaft sleeve 1 to be processed to rotate. If the positioning pin 2333 fails to be directly inserted into the positioning groove 3 in the shaft sleeve 1 to be processed and abuts against the end face of the shaft sleeve 1 to be processed, the positioning pin 2333 is pressed down, and the elastic member 2332 is also compressed, so that the positioning pin 2333 faces one end of the displacement sensor 2334 and is close to the end of the displacement sensor 2334. The displacement sensor 2334 senses the signal sent by the positioning pin 2333 and keeps the signal. At this time, the spinning mechanism 25 keeps rotating, and during the rotation of the sleeve 1 to be processed, the positioning pin 2333 is inserted into the positioning groove 3 of the sleeve 1 to be processed. At this time, the positioning pin 2333 is reset under the elastic force of the elastic member 2332, thereby blocking the sleeve 1 to be processed and preventing it from rotating. At this time, the signal of the displacement sensor 2334 is interrupted, and the spinning mechanism 25 stops rotating, and the positioning of the sleeve 1 to be processed is completed. If the positioning pin can be directly inserted into the positioning groove 3 in the sleeve 1 to be processed when the sleeve transport mechanism 24 transfers the sleeve 1 to be processed to the sleeve positioning seat 23, the displacement sensor 2334 does not send a control signal, and the spinning mechanism 25 is stationary, which means that the sleeve 1 to be processed is also positioned. Therefore, the automatic positioning system for the shaft sleeve to be processed can realize the automatic positioning of the shaft sleeve 1 to be processed, while saving time and manpower in the positioning process, ensuring that subsequent automated processing such as oil punching can be carried out smoothly.

The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims (10)

1. An automatic positioning system for a shaft sleeve to be processed, wherein a positioning groove is arranged on the axial end surface of the shaft sleeve to be processed, characterized in that: the automatic positioning system for the shaft sleeve to be processed comprises an automatic positioning device for positioning the shaft sleeve to be processed, the automatic positioning device comprises at least one shaft sleeve positioning seat, at least one shaft sleeve conveying mechanism arranged on one side of the shaft sleeve positioning seat, and at least one spinning mechanism arranged on one side of the shaft sleeve positioning seat, each of the shaft sleeve positioning seats comprises a base, a shaft sleeve guide seat rotatably connected to the base, and a positioning assembly fixedly arranged on the base, the positioning assembly is arranged on the base and close to one side of the shaft sleeve guide seat, the shaft sleeve guide seat comprises an upper cylinder, a middle cylinder, and a lower cylinder in sequence, the diameter of the upper cylinder is equivalent to the inner diameter of the shaft sleeve to be processed, the diameter of the middle cylinder is larger than the diameter of the upper cylinder, and the lower cylinder is rotatably connected relative to the base, the positioning assembly comprises a guide rod fixedly connected to the base, an elastic member sleeved on the guide rod, and a sliding connection to the guide rod. A locating pin on the free end of the rod and abutting against one end of the elastic member, and a displacement sensor arranged on the base, the displacement sensor is used to sense the position change of the locating pin close to one end of the displacement sensor, the spinning mechanism includes a support frame, a lifting unit arranged on the support frame, and a rotating unit arranged on the lifting unit. When the sleeve conveying mechanism clamps the sleeve to be processed and installs it on the sleeve positioning seat, the locating pin abuts against the end surface of the sleeve to be processed, and the spinning mechanism presses down the sleeve positioning seat The upper sleeve of the shaft sleeve to be processed drives the shaft sleeve to be processed and the shaft sleeve guide seat to rotate, so that the positioning pin of the positioning assembly is pressed down so that the positioning pin moves toward one end of the displacement sensor and toward the side close to the displacement sensor. When the displacement sensor senses the height change of the positioning pin and sends a signal and maintains the signal to control the spinning mechanism to rotate continuously, when the shaft sleeve to be processed rotates, the positioning pin is inserted into the positioning groove, and the positioning pin is lifted up and stuck to the shaft sleeve to be processed under the elastic force of the elastic member so that it cannot rotate to complete the positioning of the shaft sleeve to be processed. 2. The automatic positioning system for the sleeve to be processed as described in claim 1 is characterized in that: the automatic positioning system for the sleeve to be processed includes at least one sleeve transmission unit for transmitting the sleeve to be processed, and each of the sleeve transmission units includes a loading conveyor and a unloading conveyor. 3. The automatic positioning system for a shaft sleeve to be processed as described in claim 1, characterized in that the free end of the positioning pin forms an acute angle. 4. The automatic positioning system for the processed shaft sleeve as described in claim 1 is characterized in that: the lifting unit includes a lifting cylinder arranged on the support frame, a lifting plate connected to the lifting cylinder, the rotating unit includes a driving motor arranged on the lifting plate, and a pressure cover arranged on the output end of the driving motor. 5. The automatic positioning system for the sleeve to be processed as described in claim 1 is characterized in that: the automatic positioning device also includes a base plate for carrying the sleeve positioning seat, the sleeve transport mechanism and the spinning mechanism, and a movable plate assembly slidably arranged on the base plate and used to carry the sleeve positioning seat, the movable plate assembly includes a movable plate slidably connected to the base plate, and a movable plate driving device arranged on the base plate and arranged on one side of the movable plate. 6. The automatic positioning system for the sleeve to be processed as described in claim 5 is characterized in that: the sleeve conveying mechanism includes a sleeve conveying support seat arranged on the base plate, a translational sliding unit arranged on the sleeve conveying support seat, a vertical sliding unit arranged on the translational sliding unit, and a conveying clamp arranged on the vertical sliding unit, and the sliding directions of the translational sliding unit and the vertical sliding unit are perpendicular to each other. 7. The automatic positioning system for the sleeve to be processed as described in claim 6 is characterized in that the translation sliding unit includes a translation sliding drive device arranged on the sleeve transport support seat and a translation base plate arranged on the translation sliding drive device. 8. The automatic positioning system for the shaft sleeve to be processed as described in claim 7 is characterized in that the vertical sliding unit includes a vertical driving device arranged on the translation base plate, and a vertical moving base plate arranged on the vertical driving device. 9. The automatic positioning system for the shaft sleeve to be processed as described in claim 1 is characterized in that: the automatic positioning system for the shaft sleeve to be processed also includes at least one transfer device arranged on one side of the automatic positioning device and used to transfer the shaft sleeve to be processed, and the transfer device includes a robotic arm and a transfer clamping device arranged on the robotic arm. 10. The automatic positioning system for the shaft sleeve to be processed as described in claim 9 is characterized in that the transfer clamping device includes a mounting base for connecting the robot arm, a cylinder body fixedly connected to the mounting base, two air claws arranged on the cylinder body, and two clamps respectively arranged on the air claws.