An integrated device for turning and polishing inner and outer rings of a ring-shaped blank

Abstract

The application relates to the technical field of metal cutting, and discloses an inner-outer ring turning and polishing integrated equipment for ring-shaped blanks, which comprises a rack, a feeding sliding assembly and a tailstock are installed in the rack, a cutting and polishing assembly is installed on the feeding sliding assembly, a clamping assembly is further installed in a processing chamber, a driving disc is rotatably installed in the clamping assembly, an electric push rod and a transmission assembly are installed in the clamping assembly, an outer clamping cam groove and an inner supporting cam groove are formed in the driving disc, a chuck is rotatably installed in the clamping assembly, a clamping claw and an inner supporting block are assembled in the chuck, and a fan is further arranged in the clamping assembly. The double-cam groove structure in the clamping assembly realizes the conversion of outer clamping and inner supporting, cooperates with the cutting and polishing assembly, realizes the turning and polishing of the inner and outer rings of the ring-shaped blanks through one-time clamping, and automatically changes the flow direction of the scrap blowing airflow while switching the clamping mode, so that the current processing area is directionally blown, and the final surface quality of the product is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of metal cutting technology, specifically, it relates to an integrated turning and polishing device for the inner and outer rings of annular blanks. Background Technology

[0002] Ring-shaped blanks are the basic mechanical blanks for standard parts such as bearing rings, transmission flanges, and sealing rings, and there is a huge market demand for them in industries such as automobiles, construction machinery, and motor manufacturing. These products are characterized by standardized specifications, large batch sizes, short production cycles, and strict production rhythms, which places extremely stringent requirements on the continuous production capacity, automation integration, and batch consistency of processing equipment.

[0003] However, during the machining of ring-shaped blanks, the workpiece needs to be transferred between turning and polishing equipment multiple times. Each process requires clamping and positioning, and multiple clamping inevitably produces cumulative positioning errors, which directly affect the coaxiality and dimensional accuracy of the inner and outer rings of the workpiece. At the same time, the waiting time for transfer between processes and the repeated clamping reduce the effective working time of the equipment. In addition, the metal chips and polishing dust generated during the machining process are very easy to adhere to the machined surface of the workpiece, causing scratches and affecting the surface quality of the product.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: An integrated turning and polishing machine for the inner and outer rings of annular blanks includes a frame with a machining chamber. A feed sliding assembly and a tailstock are installed in the machining chamber. A cutting and polishing assembly is mounted on the feed sliding assembly. A clamping assembly is also installed in the machining chamber. A drive disk is rotatably mounted inside the clamping assembly. An electric push rod and a transmission assembly are installed in the clamping assembly. The electric push rod is connected to the drive disk via the transmission assembly. An outer clamping cam groove and an inner support cam groove are formed on the drive disk. A chuck is rotatably mounted in the clamping assembly, and clamping jaws and an inner support block are assembled in the chuck. A spindle motor is mounted on the outside of the clamping assembly, and a fan is also built into the clamping assembly.

[0006] In a preferred embodiment of the present invention, a protective door is slidably mounted on the frame, an observation window is embedded in the middle of the protective door panel, and a control panel is mounted on the outer wall of the frame.

[0007] In a preferred embodiment of the present invention, the feed sliding assembly includes a feed slide, a feed motor and a transmission screw. The feed motor is mounted in the frame, and the output shaft of the feed motor is connected to the transmission screw. The transmission screw is horizontally mounted in the frame, and the feed slide is assembled with the transmission screw.

[0008] In a preferred embodiment of the present invention, the cutting and polishing assembly includes a tool holder, a turning tool, a polishing motor, and a polishing wheel. The tool holder is mounted on the feed slide, a turning tool is mounted on one side of the tool holder, a polishing motor is mounted on the other side of the tool holder, and a polishing wheel is mounted on the output end of the polishing motor.

[0009] In a preferred embodiment of the present invention, the transmission assembly includes a movable sleeve, a slider, and a rotating ring. The movable sleeve is connected to the telescopic end of the electric push rod. The slider is installed in the movable sleeve. The rotating ring is installed in the movable sleeve. A sliding groove is provided on the rotating ring. The slider is assembled in the sliding groove. The rotating ring is connected to the outer casing of the fan.

[0010] In a preferred embodiment of the present invention, the clamping assembly includes a mounting cover and a rotating cover. A chuck is fixedly installed inside the rotating cover, and a mounting plate is connected to the end of the rotating cover. An electric push rod is mounted on the mounting plate, and the output end of the electric push rod passes through the mounting plate.

[0011] In a preferred embodiment of the present invention, the chuck is provided with a first straight groove and a second straight groove along the radial direction. An inner support block and a clamping claw are slidably installed in the first straight groove and the second straight groove, respectively. An inclined groove is provided on the side wall of the first straight groove and the second straight groove. A sliding rod is installed in the inclined groove. The sliding rod is installed on the side wall of the inner support block and the clamping claw.

[0012] In a preferred embodiment of the present invention, the outer clamping cam groove includes a clamping stroke groove, a locking retaining groove, and a loosening reset groove. The side of the outer clamping cam groove is also provided with a first stepped groove that is consistent with the shape of the outer clamping cam groove. The inner support cam groove includes a retracting waiting groove, a tensioning stroke groove, and a tensioning retaining groove. The side of the inner support cam groove is provided with a second stepped groove that is consistent with the shape of the inner support cam groove.

[0013] In a preferred embodiment of the present invention, cam blocks are installed in both the first and second stepped grooves. A cam rod is connected to the end face of the cam block. The cam rod slides inside the grooves of the outer clamping cam groove and the inner supporting cam groove. A through hole is provided at the center of both the inner supporting block and the clamping claw. The through hole and the cam rod are slidably connected and engaged.

[0014] In a preferred embodiment of the present invention, the mounting cover is provided with a first air inlet, the mounting plate is provided with a second air inlet, the chuck is provided with a first inner through hole and a first outer through hole, and the drive plate is provided with a second inner through hole and a second outer through hole.

[0015] Compared with the prior art, the present invention has the following advantages: This invention utilizes a double cam groove structure within the clamping assembly to switch between external clamping and internal support clamping. Combined with the cutting and polishing assembly, it enables the one-time clamping of annular blanks to complete the turning and polishing of the inner and outer rings, eliminating errors caused by multiple transfers and repeated clamping between processes, improving workpiece accuracy, and shortening the production cycle. Furthermore, it automatically changes the direction of the chip blowing airflow while switching clamping modes, thereby directionally blowing the current processing area to prevent impurities from adhering and scratching the processed surface of the workpiece, ensuring the final surface quality of the product.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 A schematic diagram of an integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank; Figure 2 This is a schematic diagram of the installation of the feed sliding assembly of an integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank. Figure 3 A schematic diagram of the cutting and polishing components of an integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank; Figure 4 A front view of the clamping assembly of an integrated turning and polishing machine for the inner and outer rings of a ring-shaped blank; Figure 5 Rear view of the clamping assembly of an integrated turning and polishing machine for the inner and outer rings of a ring-shaped blank; Figure 6 A cross-sectional view of the clamping assembly of an integrated turning and polishing device for the inner and outer rings of a ring-shaped blank; Figure 7 This is a schematic diagram of the installation of the transmission assembly of an integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank. Figure 8 A schematic diagram of the drive disc of an integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank; Figure 9 A schematic diagram of the chuck structure of an integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank; Figure 10 An exploded view of the transmission component of an integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank.

[0018] In the diagram: 1. Frame; 2. Machining chamber; 3. Protective door; 4. Observation window; 5. Control panel; 6. Feed slide; 7. Feed motor; 8. Lead screw; 10. Tool holder; 11. Lathe tool; 12. Polishing motor; 13. Polishing wheel; 14. Tailstock; 15. Clamping assembly; 16. Mounting cover; 17. Rotating cover; 18. Chuck; 19. Mounting plate; 20. Electric push rod; 21. Spindle motor; 22. Drive disk; 23. Moving sleeve; 24. Slider; 25. Rotating ring; 26. Slide; 27. Fan; 28. First straight groove; 29. ​​Second straight groove; 30. 31. Inner support block; 32. Clamping claw; 33. Inclined groove; 34. Slide rod; 35. Outer clamping cam groove; 36. Clamping stroke groove; 37. Locking retaining groove; 38. Release reset groove; 39. Inner support cam groove; 40. Retracting and waiting groove; 31. Tensioning stroke groove; 32. Tensioning retaining groove; 33. Second step groove; 44. Cam rod; 55. Cam block; 66. Through hole; 77. First inner through hole; 88. Second inner through hole; 99. First outer through hole; 10. Second outer through hole; 11. First outer through hole; 12. Second outer through hole; 13. First air inlet; 14. Second air inlet. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0020] like Figures 1 to 10 As shown, an integrated turning and polishing equipment for the inner and outer rings of annular blanks includes a frame 1, a machining chamber 2 in the frame 1, a feed sliding assembly and a tailstock 14 installed in the machining chamber 2, a cutting and polishing assembly installed on the feed sliding assembly, a clamping assembly 15 installed in the machining chamber 2, a drive disk 22 rotatably mounted inside the clamping assembly 15, an electric push rod 20 and a transmission assembly installed in the clamping assembly 15, the electric push rod 20 being connected to the drive disk 22 through the transmission assembly, an outer clamping cam groove 34 and an inner support cam groove 35 being provided on the drive disk 22, a chuck 18 rotatably mounted in the clamping assembly 15, a clamping jaw 31 and an inner support block 30 being assembled in the chuck 18, a spindle motor 21 being installed on the outside of the clamping assembly 15, and a fan 27 being built inside the clamping assembly 15. In this setup, the electric push rod 20 drives the drive disk 22 to rotate via the transmission assembly. The drive disk 22 drives the clamping jaw 31 and the inner support block 30 to move alternately via the outer clamping cam groove 34 and the inner support cam groove 35, respectively, to achieve the switching of different workpiece clamping methods. The spindle motor 21 drives the chuck 18 and the workpiece to rotate synchronously, providing rotational power for machining. The feed sliding assembly drives the cutting and polishing assembly to move to complete the turning and polishing operation. The fan 27 generates airflow for chip removal and cooling during the machining process.

[0021] like Figures 1 to 10 As shown, in a specific embodiment, a protective door 3 is slidably installed on the frame 1, and an observation window 4 is embedded in the middle of the protective door 3. A control panel 5 is installed on the outer wall of the frame 1. In this configuration, the protective door 3 can be opened and closed for loading and unloading workpieces, and when closed, it seals the processing chamber 2 to prevent chips from splashing. The observation window 4 allows the operator to observe the processing status inside the processing chamber 2 in real time. The control panel 5 is used to set equipment processing parameters, control equipment start and stop, and switch processing modes.

[0022] like Figures 1 to 10 As shown, the feed sliding assembly further includes a feed slide 6, a feed motor 7, and a lead screw 8. The feed motor 7 is mounted in the frame 1, and its output shaft is connected to the lead screw 8. The lead screw 8 is horizontally mounted in the frame 1, and the feed slide 6 is assembled with the lead screw 8. In this configuration, the feed motor 7 drives the lead screw 8 to rotate, converting the rotational motion into linear motion, which in turn drives the feed slide 6 to move smoothly along the guide rail of the frame 1, thereby feeding the cutting and polishing assembly to meet the processing requirements of different positions on the workpiece.

[0023] like Figures 1 to 10 As shown, the cutting and polishing assembly further includes a tool holder 10, a turning tool 11, a polishing motor 12, and a polishing wheel 13. The tool holder 10 is mounted on the feed slide 6, the turning tool 11 is mounted on one side of the tool holder 10, and the polishing motor 12 is mounted on the other side of the tool holder 10. The polishing wheel 13 is mounted on the output end of the polishing motor 12. In this configuration, the tool holder 10 provides a mounting base for the turning tool 11 and the polishing motor 12. The turning tool 11 moves with the feed slide 6 to turn the rotating workpiece, removing excess material from the workpiece surface. The polishing motor 12 drives the polishing wheel 13 to rotate at high speed to grind and polish the surface of the turned workpiece.

[0024] like Figures 1 to 10 As shown, the transmission assembly further includes a movable sleeve 23, a slider 24, and a rotating ring 25. The movable sleeve 23 is connected to the telescopic end of the electric push rod 20. The slider 24 is installed in the movable sleeve 23, and the rotating ring 25 is also installed in the movable sleeve 23. A groove 26 is provided on the rotating ring 25, and the slider 24 is assembled in the groove 26. The rotating ring 25 is connected to the outer casing of the fan 27. In this configuration, the telescopic movement of the electric push rod 20 drives the movable sleeve 23 to move axially. The movable sleeve 23 drives the slider 24 to slide in the groove 26, thereby driving the rotating ring 25 to rotate circumferentially. The rotating ring 25 drives the drive disk 22 to rotate synchronously through the outer casing of the fan 27, realizing the switching of the clamping mode.

[0025] like Figures 1 to 10As shown, the clamping assembly 15 further includes a mounting cover 16 and a rotating cover 17. A chuck 18 is fixedly installed inside the rotating cover 17, and a mounting plate 19 is connected to the end of the rotating cover 17. An electric push rod 20 is mounted on the mounting plate 19, and the output end of the electric push rod 20 passes through the mounting plate 19. In this configuration, the mounting cover 16 protects the internal moving structure of the clamping assembly 15 from dust. The rotating cover 17 is connected to the spindle motor 21, driving the chuck 18 and the workpiece to rotate synchronously. The mounting plate 19 provides support for the electric push rod 20 and the spindle motor 21. The output end of the electric push rod 20 passes through the mounting plate 19 and is connected to the transmission assembly to transmit the power for clamping switching.

[0026] like Figures 1 to 10 As shown, the chuck 18 further includes a first straight groove 28 and a second straight groove 29 radially. An inner support block 30 and a clamping claw 31 are slidably installed in the first straight groove 28 and the second straight groove 29, respectively. Inclined grooves 32 are formed on the sidewalls of both the first straight groove 28 and the second straight groove 29, and slide rods 33 are installed in the inclined grooves 32. The slide rods 33 are mounted on the sidewalls of the inner support block 30 and the clamping claw 31. In this configuration, the first straight groove 28 and the second straight groove 29 provide radial sliding guides for the inner support block 30 and the clamping claw 31, respectively. When the cam rod 36 moves with the drive disc 22, it drives the inner support block 30 and the clamping claw 31 to move smoothly along the corresponding straight grooves. The slide rod 33 slides along the inclined groove 32 and cooperates with the inner support block 30 and the clamping claw 31 to complete the extension and retraction actions, thereby achieving clamping or releasing.

[0027] like Figures 1 to 10 As shown, the outer clamping cam groove 34 further includes a clamping stroke groove 341, a locking and retaining groove 342, and a releasing and resetting groove 343. A first stepped groove 344 with the same shape as the outer clamping cam groove 34 is also provided on the side of the outer clamping cam groove 34. The inner support cam groove 35 includes a retracting and waiting groove 351, a tensioning stroke groove 352, and a tensioning retaining groove 353. A second stepped groove 354 with the same shape as the inner support cam groove 35 is provided on the side of the inner support cam groove 35. In this configuration, the three-segment trajectory of the outer clamping cam groove 34 sequentially realizes the retracting clamping, clamping and retaining, and opening and releasing actions of the clamping claw 31. The three-segment trajectory of the inner support cam groove 35 sequentially realizes the retracting and waiting, outward tensioning, and tensioning and retaining actions of the inner support block 30. The first stepped groove 344 and the second stepped groove 354 are used to define the corresponding cam structure.

[0028] like Figures 1 to 10As shown, furthermore, cam blocks 37 are installed in both the first stepped groove 344 and the second stepped groove 354. A cam rod 36 is connected to the end face of the cam block 37. The cam rod 36 slides within the grooves of the outer clamping cam groove 34 and the inner supporting cam groove 35. A through hole 38 is provided at the center of both the inner supporting block 30 and the clamping claw 31. The through hole 38 and the cam rod 36 are slidably fitted together. In this configuration, the cam block 37 is fixed within the stepped groove to prevent movement, and the cam rod 36 moves synchronously with the cam block 37. The cam rod 36 drives the inner supporting block 30 and the clamping claw 31 to move through the through hole 38.

[0029] like Figures 1 to 10 As shown, the mounting cover 16 is further provided with a first air inlet 43, the mounting plate 19 is provided with a second air inlet 44, the chuck 18 is provided with a first inner through hole 39 and a first outer through hole 41, and the drive plate 22 is provided with a second inner through hole 40 and a second outer through hole 42. In this configuration, the first air inlet 43 and the second air inlet 44 allow outside air to enter the internal air duct of the clamping assembly 15. When the drive plate 22 rotates to align the first inner through hole 39 with the second inner through hole 40 or the first outer through hole 41 with the second outer through hole 42, the airflow generated by the fan 27 is directed towards the processing area through the aligned through holes, thereby removing chips and dust generated during processing in real time and reducing the processing temperature.

[0030] The implementation principle of the integrated turning and polishing equipment for the inner and outer rings of annular blanks in this embodiment is as follows: Before the equipment is put into operation, the operator opens and closes the protective door 3 on the front side of the frame 1 to pick up and put down the workpiece. The operator can observe the processing status inside the processing chamber 2 through the observation window 4 on the protective door 3. At the same time, the operator can complete the equipment parameter debugging, start and stop control and processing mode switching through the control panel 5 to prepare for subsequent automated processing operations. In the initial state of the equipment, the clamping assembly 15 is in the reset state, the inner support block 30 is kept closed and stored inside the chuck 18, and the clamping claw 31 is kept open and stored inside the chuck 18. The operator places the annular blank to be processed into the clamping position of the chuck 18 of the clamping assembly 15.

[0031] Subsequently, the equipment starts the clamping process corresponding to the inner ring processing. The electric push rod 20 starts to extend, pushing the moving sleeve 23 to move axially. The moving sleeve 23 drives the slider 24 to slide in linkage, thereby driving the rotating ring 25 to rotate. The rotating ring 25 drives the fan 27 to rotate as a whole through the limiting and guiding cooperation of the slide groove 26. The front end housing of the fan 27 is fixedly connected to the drive disk 22, thereby pulling the drive disk 22 to rotate synchronously.

[0032] In the inner ring machining mode, as the drive disk 22 rotates, the outer clamping cam groove 34 rotates synchronously. The cam rod 36 in the outer clamping cam groove 34 slides along the trajectory of the clamping stroke groove 341. Driven by the clamping stroke groove 341, the cam rod 36 moves towards the center of the drive disk 22. The clamping jaw 31 is slidably mounted on the cam rod 36 through the through hole 38, and therefore moves synchronously with the cam rod 36 along the second straight groove 29 towards the center. During the movement of the clamping jaw 31, it drives the slide rod 33 to slide in the inclined groove 32. Since the inclined groove 32 is inclined, as the slide rod 33 slides along the inclined groove 32, it drives the clamping jaw 31 to move along the cam rod 36 and extend out of the chuck 18. When the cam rod 36 moves to the initial end of the locking and retaining groove 342, the clamping jaw 31 completes the clamping action, clamping the outer ring of the annular blank tightly. After the cam rod 36 enters the locking and retaining groove 342, it forms a trajectory lock, so that the clamping jaw 31 continues to maintain the clamping state. During this process, the inner support cam groove 35 rotates synchronously with the drive disk 22. The cam rod 36 in the inner support cam groove 35 is always located in the retractable waiting groove 351. The retractable waiting groove 351 restricts the cam rod 36 to move neither towards the center of the drive disk 22 nor away from the center. Therefore, the inner support block 30 remains retracted and stored inside the chuck 18, avoiding the inner hole area of ​​the workpiece and preventing structural interference to the inner ring turning and polishing.

[0033] After the outer ring of the workpiece is stably clamped and fixed, the spindle motor 21 starts working, driving the rotating cover 17 and the internal chuck 18 to rotate at a constant speed, thereby driving the annular blank to rotate synchronously, providing stable rotational power for the turning and polishing of the inner ring of the workpiece. At the same time, the feed motor 7 starts running, driving the transmission screw 8 to rotate, converting the rotational motion into linear feed power, driving the feed slide 6 to move along the guide rail of the frame 1. The feed slide 6, carrying the tool holder 10 and the turning tool 11 fixed on the tool holder 10, gradually approaches the rotating annular blank, performing turning machining on the inner ring of the workpiece, removing excess machining allowance in the inner hole, and completing the rough machining process of the inner ring.

[0034] After the inner ring turning is completed, the tool holder 10 completes the station switch and the equipment starts the inner ring polishing process. The polishing motor 12 starts to drive the polishing wheel 13 to rotate in the forward direction. The feed slide 6 feeds continuously, so that the high-speed forward rotating polishing wheel 13 fits against the inner ring surface of the annular blank and forms a reverse cutting and grinding with the workpiece rotation direction. The inner ring surface after turning is polished to eliminate turning marks, correct surface accuracy, and optimize the roughness of the inner hole.

[0035] Throughout the inner ring machining process, the fan 27 is continuously running. Outside air enters the internal air duct of the clamping assembly 15 through the first air inlet 43 of the mounting cover 16 and the second air inlet 44 of the mounting plate 19. As the drive disk 22 rotates and aligns, the first inner through hole 39 and the second inner through hole 40 are connected, and airflow is blown out to the inner ring machining area of ​​the workpiece. This removes fine metal chips and dust generated during inner ring turning and polishing in real time, while also carrying away machining heat, reducing machining temperature, and preventing impurities from remaining and affecting the machining accuracy of the inner hole.

[0036] After the inner ring of the workpiece is fully machined, the equipment switches to the outer ring machining mode. The electric push rod 20 continues to extend, driving the rotating ring 25 and the drive disk 22 to rotate synchronously. When the drive disk 22 rotates, it synchronously drives the outer clamping cam groove 34 and the inner support cam groove 35 to rotate together. In the initial stage of switching, the cam rod 36 in the outer clamping cam groove 34 is always in the locking retaining groove 342, maintaining the clamping state, so that the clamping claw 31 continues to hold the outer ring of the workpiece, ensuring that the workpiece is stably fixed on the chuck 18. At the same time, the cam rod 36 in the inner support cam groove 35 rotates with the drive disk 22, moving from the retracting waiting groove 351 into the tensioning stroke groove 352. Under the driving action of the tensioning stroke groove 352, since the inner support block 30 is restricted by the first straight groove 28 to only move in a straight line and cannot rotate with the inner support cam groove 35, the inner support block 30 moves in a direction away from the center of the chuck 18. During the movement of the inner support block 30, it drives the sliding rod 33 to slide along the inclined groove 32, causing the inner support block 30 to extend out of the chuck 18. When the cam rod 36 in the inner support cam groove 35 moves into the tensioning and maintaining groove 353, the inner support block 30 tightly supports the inner hole of the annular blank and maintains a stable inner support state. After that, the drive disk 22 continues to rotate, and the cam rod 36 in the outer clamping cam groove 34 enters the release and reset groove 343. The release and reset groove 343 drives the corresponding cam rod 36 to unlock from the clamping jaw 31, causing the clamping jaw 31 to move away from the center of the chuck 18. With the cooperation of the inclined groove 32 and the slide bar 33, the clamping jaw 31 retracts into the chuck 18, releasing the clamping of the outer ring of the workpiece. The release and reset groove 343 keeps the cam rod 36 corresponding to the inner support block 30 always in the tensioning and maintaining groove 353, maintaining a stable inner support state, ensuring that the workpiece does not loosen or shift during the outer ring processing.

[0037] After the workpiece's inner hole is stably clamped and positioned, the spindle motor 21 continuously drives the workpiece to rotate at a uniform speed. The feed motor 7, in conjunction with the transmission screw 8, drives the feed slide 6 to feed the workpiece. First, the outer ring of the annular blank is machined by the turning tool 11 to remove the machining allowance and correct the workpiece's dimensions. Then, the equipment switches to the outer ring polishing mode. The polishing motor 12 drives the polishing wheel 13 to rotate in the opposite direction to the inner ring polishing, so that the high-speed counter-rotating polishing wheel 13 fits against the surface of the workpiece's outer ring, forming an effective grinding fit with the workpiece's rotation direction to polish the outer ring of the workpiece. During the switch from the inner ring to the outer ring, the drive disk 22 rotates, aligning and connecting the first outer through hole 41 and the second outer through hole 42. The airflow delivered by the fan 27 passes through the air inlet and blows through the workpiece's outer ring machining area, removing metal debris and polishing dust generated during outer ring machining, continuously cooling and removing dust, ensuring the outer ring machining accuracy and a clean working environment.

[0038] After all the machining processes for the inner and outer rings of the annular blank are completed, the equipment enters the reset and unloading process. The feed motor 7 rotates in reverse, driving the feed slide 6 to quickly reset via the transmission screw 8, so that the cutting tool 11 and polishing wheel 13 are completely away from the workpiece machining area and exit the machining station. Subsequently, the electric push rod 20 resets and retracts, driving the drive disk 22 to rotate and reset, the cam rod 36 returns to its initial position, the inner support cam groove 35 switches to the retractable waiting groove 351 section, and drives the inner support block 30 to retract along the first straight groove 28 and be stored inside the chuck 18. At the same time, the clamping jaws 31 remain open and retracted along the second straight groove 29. Finally, the operator removes the finished workpiece, completing a single complete machining cycle, and waits for the next workpiece machining operation.

[0039] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated turning and polishing machine for the inner and outer rings of an annular blank, comprising a frame (1), characterized in that, The frame (1) is provided with a machining chamber (2), in which a feed sliding assembly and a tailstock (14) are installed. A cutting and polishing assembly is installed on the feed sliding assembly. A clamping assembly (15) is also installed in the machining chamber (2). A drive disk (22) is rotatably installed inside the clamping assembly (15). An electric push rod (20) and a transmission assembly are installed in the clamping assembly (15). The electric push rod (20) is connected to the drive disk (22) through the transmission assembly. An outer clamping cam groove (34) and an inner support cam groove (35) are provided on the drive disk (22). A chuck (18) is rotatably installed in the clamping assembly (15). A clamping jaw (31) and an inner support block (30) are assembled in the chuck (18). A spindle motor (21) is installed on the outside of the clamping assembly (15). A fan (27) is also built inside the clamping assembly (15).

2. The integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank according to claim 1, characterized in that, A protective door (3) is slidably installed on the frame (1). An observation window (4) is embedded in the middle of the plate of the protective door (3). A control panel (5) is installed on the outer wall of the frame (1).

3. The integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank according to claim 1, characterized in that, The feed sliding assembly includes a feed slide (6), a feed motor (7) and a transmission screw (8). The feed motor (7) is installed in the frame (1). The output shaft of the feed motor (7) is connected to the transmission screw (8). The transmission screw (8) is horizontally mounted in the frame (1). The feed slide (6) and the transmission screw (8) are assembled.

4. The integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank according to claim 1, characterized in that, The cutting and polishing assembly includes a tool holder (10), a cutting tool (11), a polishing motor (12), and a polishing wheel (13). The tool holder (10) is mounted on the feed slide (6). The cutting tool (11) is mounted on one side of the tool holder (10), and the polishing motor (12) is mounted on the other side of the tool holder (10). The polishing wheel (13) is mounted on the output end of the polishing motor (12).

5. The integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank according to claim 1, characterized in that, The transmission assembly includes a movable sleeve (23), a slider (24), and a rotating ring (25). The movable sleeve (23) is connected to the telescopic end of the electric push rod (20). The slider (24) is installed in the movable sleeve (23). The rotating ring (25) is installed in the movable sleeve (23). A groove (26) is provided on the rotating ring (25). The slider (24) is assembled in the groove (26). The rotating ring (25) is connected to the outer shell of the fan (27).

6. The integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank according to claim 1, characterized in that, The clamping assembly (15) includes a mounting cover (16) and a rotating cover (17). A chuck (18) is fixedly installed inside the rotating cover (17). A mounting plate (19) is connected to the end of the rotating cover (17). An electric push rod (20) is installed on the mounting plate (19). The output end of the electric push rod (20) passes through the mounting plate (19).

7. The integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank according to claim 1, characterized in that, The chuck (18) has a first straight groove (28) and a second straight groove (29) radially. An inner support block (30) and a clamping claw (31) are slidably installed in the first straight groove (28) and the second straight groove (29), respectively. An inclined groove (32) is provided on the side wall of the first straight groove (28) and the second straight groove (29). A sliding rod (33) is installed in the inclined groove (32). The sliding rod (33) is installed on the side wall of the inner support block (30) and the clamping claw (31).

8. The integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank according to claim 1, characterized in that, The outer clamping cam groove (34) includes a clamping stroke groove (341), a locking retaining groove (342), and a loosening reset groove (343). The outer clamping cam groove (34) also has a first stepped groove (344) with the same shape as the outer clamping cam groove (34) on its side. The inner support cam groove (35) includes a retracting waiting groove (351), a tensioning stroke groove (352), and a tensioning retaining groove (353). The inner support cam groove (35) has a second stepped groove (354) with the same shape as the inner support cam groove (35) on its side.

9. The integrated turning and polishing equipment for the inner and outer rings of a ring-shaped blank according to claim 8, characterized in that, Cam blocks (37) are installed in both the first stepped groove (344) and the second stepped groove (354). A cam rod (36) is connected to the end face of the cam block (37). The cam rod (36) slides inside the groove of the outer clamping cam groove (34) and the inner support cam groove (35). A through hole (38) is provided at the center of both the inner support block (30) and the clamping claw (31). The through hole (38) and the cam rod (36) are slidably connected and engaged.

10. The integrated turning and polishing equipment for the inner and outer rings of annular blanks according to claim 1, characterized in that, The mounting cover (16) has a first air inlet (43), the mounting plate (19) has a second air inlet (44), the chuck (18) has a first inner through hole (39) and a first outer through hole (41), and the drive plate (22) has a second inner through hole (40) and a second outer through hole (42).

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