Powder metallurgy part turning device
By designing inner hole cleaning components in powder metallurgical parts turning device, using the combination of fluid medium pipes and conical guide sleeves, the problem of turning chips adhering to the inner wall of the part is solved, achieving more efficient inner hole cleaning and improving Part quality.
Patent Information
- Application Number
- CN202422919248.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-11-28
AI Technical Summary
During the turning process of powder metallurgy parts, the turning chips in the coolant are prone to adhere to the inner wall of the part, resulting in subsequent workpiece scratches and part quality problems.
A device including a lathe and an inner bore cleaning assembly is designed. The inner bore cleaning assembly can spray gas or liquid into the inner bore of the part through a slip ring plate, a fluid medium pipe and a tapered guide sleeve, and uses the fluid medium to pass through the split column. A hollow flow medium column is formed to wash the inner holes of the part and clean the debris.
It effectively avoids scratches on the inner wall of the part and improves the quality of the part. By adjusting the position of the slip ring plate, it adjusts the diameter range of fluid media spraying, adapts to the inner diameter of different parts, and enhances the cleaning effect of the inner holes.
Smart Images
Figure CN222308238U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of powder metallurgy parts processing, in particular to a powder metallurgy parts turning device. Background Art
[0002] In order to fit the installation, some small sleeve parts for automobiles will have multiple matching holes at intervals on the wall thickness of their ends. When opening matching holes, if the manual bench drill is used to drill, the efficiency is low and the error is large. Therefore, such parts are usually produced using powder metallurgy technology, that is, powder metallurgy parts are metal parts made by forming and sintering metal powder or using metal powder as raw materials. At the same time, in order to improve automation, the sintered parts will be transported to the lathe through the robot and conveyor for turning the inner and outer walls. The turned parts will be transported to the next station again through the robot and conveyor.
[0003] Existing lathes are equipped with coolant pipes, which are located on one side of the three-jaw chuck and are used to spray flowing coolant to the outside of the part. However, when turning the inner wall of the part, some turning chips will stick to the inner wall of the part along with the coolant. When the part with turning chips stuck to the inner wall is transported to the next station, it is easy to cause scratches on the workpiece or the inner wall of the part, resulting in damage to the workpiece or affecting the quality of the part. Utility Model Content
[0004] To solve at least one aspect of the above problems, the utility model provides a powder metallurgy parts turning device, including a lathe and an inner hole cleaning assembly, the lathe includes a frame, a transmission sleeve, a three-jaw chuck, a motor group and a rotating tool seat, the transmission sleeve is rotatably mounted on the frame, the three-jaw chuck is connected to the transmission sleeve and rotates synchronously, the three-jaw chuck is suitable for clamping parts, the motor group is connected to the transmission sleeve to drive the transmission sleeve to rotate, the rotating tool seat is located on the side of the three-jaw chuck away from the transmission sleeve and is movably mounted on the frame, the rotating tool seat is suitable for tool installation, a coolant pipeline is provided on the rotating tool seat, the coolant pipeline is suitable for spraying coolant to the part being turned, and the inner hole cleaning assembly is installed in the transmission sleeve and is suitable for cleaning debris in the inner hole of the part being turned;
[0005] The inner hole cleaning assembly includes a sliding ring plate, a fluid medium pipeline and a tapered guide sleeve, wherein the sliding ring plate is arranged inside the transmission sleeve near one end of the three-jaw chuck, the sliding ring plate can slide and retract in the transmission sleeve along the axial direction of the transmission sleeve, the transmission sleeve is provided with a limit screw, and the limit screw can lock the sliding ring plate after sliding any length, the fluid medium pipeline is inserted in the transmission sleeve and has a flowing medium passing therein, one end of the fluid medium pipeline is inserted into the sliding ring plate and is rotatably connected to the sliding ring plate, and the other end of the fluid medium pipeline passes through the transmission sleeve and is exposed to the outside, a dividing column is provided at the center of the inner hole of the sliding ring plate, the tapered guide sleeve is arranged on one side of the sliding ring plate near the three-jaw chuck, one end of the dividing column is inserted into the tapered guide sleeve, and the flowing medium in the fluid medium pipeline forms a hollow flowing medium column through the dividing column and acts on the peripheral wall of the inner hole of the turned part through the tapered guide sleeve.
[0006] Optionally, the end of the tapered guide sleeve with a larger inner diameter faces the three-jaw chuck.
[0007] Optionally, cooling liquid or gas is passed into the fluid medium pipeline.
[0008] Optionally, the fluid medium pipeline is a hard pipe body, and one end of the fluid medium pipeline connected to the sliding ring plate is sleeved with a wear-resistant sleeve, and the wear-resistant sleeve is inserted into the inner hole of the sliding ring plate and is rotatably connected to the sliding ring plate.
[0009] Optionally, a connecting strip is fixedly mounted on the outer wall of the partition column, and one end of the connecting strip away from the partition column is fixedly connected to the inner hole wall of the sliding ring plate.
[0010] Optionally, an orientation block is provided on the outer wall of the sliding ring plate, an orientation groove is provided on the inner wall of the transmission sleeve, and the orientation block is inserted into the orientation groove and slides in the orientation groove.
[0011] Optionally, a driving spring is provided on a side of the orientation block away from the three-jaw chuck, and the other end of the driving spring abuts against a groove wall of the orientation groove away from the three-jaw chuck.
[0012] Optionally, a plurality of threaded holes are provided at intervals at the bottom of the directional groove, and the limiting top screw is suitable for being inserted and threadedly installed in any of the threaded holes to limit the direction in which the sliding ring plate moves toward the three-jaw chuck.
[0013] Compared with the prior art, the beneficial technical effects of the utility model are:
[0014] 1. During the turning process of short cylindrical parts, the coolant pipe can continue to spray coolant to the outer surface of the part, while the inner hole cleaning component can spray gas or liquid into the inner hole of the part to flush out all the debris in the inner hole of the part, avoiding subsequent scratches on the workpiece and the part itself, thereby improving the quality of the part;
[0015] 2. The fluid medium in the fluid medium pipeline can form a hollow flow medium column through the dividing column. Then, the flow medium in this state directly flushes the circumferential hole wall of the inner hole of the part under the guidance of the tapered guide sleeve. Since the pressure generated by the fluid medium after being divided by the dividing column is relatively large, the impact force is also relatively large, which can form a large impact force and improve the cleaning effect of the inner hole of the part;
[0016] 3. According to the different inner diameters of the parts being turned, the sliding ring plate can be pushed away from the three-jaw chuck to adjust the distance between the tapered guide sleeve and the three-jaw chuck, thereby adjusting the diameter range of the fluid medium after it is ejected. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural diagram of a lathe and an inner hole cleaning assembly in an embodiment of the utility model;
[0018] Figure 2 It is a cross-sectional view of the transmission sleeve, the transmission box and the inner hole cleaning assembly in the embodiment of the utility model;
[0019] Figure 3 An exploded view of the transmission sleeve and the inner hole cleaning assembly in the embodiment of the utility model;
[0020] Figure 4 It is a cross-sectional view of the cooperation state between the inner hole cleaning component and the transmission sleeve in the embodiment of the utility model.
[0021] Explanation of the reference numerals: 1. lathe; 11. frame; 12. transmission sleeve; 121. orientation groove; 122. threaded hole; 123. limit screw; 13. three-jaw chuck; 14. motor unit; 15. rotating tool holder; 151. coolant pipeline; 16. transmission box; 2. inner hole cleaning assembly; 21. sliding ring plate; 211. orientation block; 22. fluid medium pipeline; 23. tapered guide sleeve; 24. wear-resistant sleeve; 25. drive spring; 26. dividing column. DETAILED DESCRIPTION
[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0023] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.
[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.
[0025] The following is combined with Figure 1-4 This application is described in further detail.
[0026] The utility model provides a powder metallurgy parts turning device, referring to Figure 1 and Figure 2 The powder metallurgy parts turning device includes a lathe 1 and an inner hole cleaning component 2. The lathe 1 includes a frame 11, a transmission sleeve 12, a three-jaw chuck 13, a motor group 14 and a rotating tool seat 15. The transmission sleeve 12 is rotatably connected to the frame 11, the three-jaw chuck 13 is connected to the transmission sleeve 12 and rotates synchronously, the three-jaw chuck 13 is suitable for clamping parts, the motor group 14 is connected to the transmission sleeve 12 to drive the transmission sleeve 12 to rotate, the rotating tool seat 15 is located on the side of the three-jaw chuck 13 away from the transmission sleeve 12 and is movably installed on the frame 11, the rotating tool seat 15 is suitable for tool installation, and a coolant pipe 151 is provided on the rotating tool seat 15, the coolant pipe 151 is suitable for spraying coolant to the turned parts, and the inner hole cleaning component 2 is installed in the transmission sleeve 12 and is suitable for cleaning debris in the inner hole of the turned parts.
[0027] Reference Figure 1 and Figure 2 A transmission box 16 is fixedly installed on the top of the frame 11, one end of the transmission sleeve 12 passes through the transmission box 16, both ends of the transmission sleeve 12 protrude from the transmission box 16, and the transmission sleeve 12 is rotatably connected to the transmission box 16. The transmission sleeve 12 is a hollow sleeve, and the three-jaw chuck 13 is sleeved on the transmission sleeve 12 and key-connected with the transmission sleeve 12, and can be rotatably connected with the transmission sleeve 12.
[0028] The motor group 14 includes a driving motor, a pulley and a belt. The pulley is sleeved on the end of the transmission sleeve 12 away from the three-jaw chuck 13 and is key-connected to the transmission sleeve 12. The driving motor is located below the pulley. The pulley is connected to the motor shaft of the driving motor through a belt, and then the driving motor rotates to drive the transmission sleeve 12 to rotate.
[0029] Reference Figure 2 and Figure 3The inner hole cleaning assembly 2 is located inside the transmission sleeve 12 near one end of the three-jaw chuck 13, and the inner hole cleaning assembly 2 includes a sliding ring plate 21, a fluid medium pipeline 22, and a tapered guide sleeve 23. The sliding ring plate 21 slides inside the transmission sleeve 12, and the fluid medium pipeline 22 and the tapered guide sleeve 23 are both connected to the sliding ring plate 21 and slide synchronously. The tapered guide sleeve 23 is fixedly arranged on one side of the sliding ring plate 21 near the three-jaw chuck 13, thereby being able to guide the medium ejected from the fluid medium pipeline 22.
[0030] Combination Figure 1 Reference Figure 3 and Figure 4 In this embodiment, the fluid medium pipeline 22 is preferably a hard pipeline, and the fluid medium pipeline 22 is concentric with the transmission sleeve 12, the outer diameter of the fluid medium pipeline 22 is smaller than the inner diameter of the transmission sleeve 12, and the end of the fluid medium pipeline 22 close to the sliding ring plate 21 is sleeved with a fixed wear-resistant sleeve 24, and the wear-resistant sleeve 24 is inserted into the inner hole of the sliding ring plate 21 and is rotatably connected to the sliding ring plate 21. Therefore, after the transmission sleeve 12 rotates, it is not easy to drive the fluid medium pipeline 22 to rotate synchronously. Coolant can be introduced into the fluid medium pipeline 22 to flush the part hole wall with liquid; gas can also be introduced to flush the part hole wall with gas, and gas is preferably introduced in this embodiment.
[0031] Combination Figure 1 Reference Figure 3 and Figure 4 The outer wall of the sliding ring plate 21 is integrally formed with an orientation block 211, and the inner wall of the transmission sleeve 12 is provided with an orientation groove 121. The axial direction of the orientation groove 121 is the same as the axial direction of the transmission sleeve 12. The end of the orientation groove 121 close to the three-jaw chuck 13 passes through the transmission sleeve 12, which is convenient for the installation of the sliding ring plate 21. The orientation block 211 is inserted into the orientation groove 121 and slides in the orientation groove 121. A driving spring 25 is provided on the side of the orientation block 211 away from the three-jaw chuck 13, and the other end of the driving spring 25 abuts against the groove wall of the orientation groove 121 away from the three-jaw chuck 13, so as to drive the sliding ring plate 21 to automatically reset after being squeezed. The groove wall corresponding to the orientation groove 121 and the end of the sliding ring plate 21 close to the driving spring 25 are both provided with spring columns, and the two ends of the driving spring 25 are respectively sleeved on the spring columns to prevent the spring from falling off.
[0032] A plurality of threaded holes 122 are provided at the bottom of the directional groove 121, and the plurality of threaded holes 122 are arranged at intervals along the extension direction of the directional groove 121. A limiting top screw 123 can be inserted into and threadedly connected to any threaded hole 122. One end of the limiting top screw 123 can be cantilevered in the directional groove 121, and the other end does not protrude from the transmission sleeve 12. The limiting top screw 123 is inserted into different threaded holes 122 to limit the direction in which the sliding ring plate 21 moves towards the three-jaw chuck 13 after sliding of any length.
[0033] Combination Figure 1 Reference Figure 3 and Figure 4 The end with a larger inner diameter of the conical guide sleeve 23 faces the three-jaw chuck 13, and a mounting bracket is fixedly provided on the outer wall of the conical guide sleeve 23. The conical guide sleeve 23 is fixedly connected to the sliding ring plate 21 through the mounting bracket. The end with a smaller inner diameter of the conical guide sleeve 23 is inserted into the inner hole of the sliding ring plate 21 to guide the medium sprayed from the fluid medium pipeline 22.
[0034] A partition column 26 is provided at the center of the inner hole of the sliding ring plate 21, and a plurality of connecting strips are fixedly installed at intervals in the circumferential direction on the outer wall of the partition column 26, and one end of the plurality of connecting strips away from the partition column 26 is fixedly connected to the inner hole wall of the sliding ring plate 21. The end of the partition column 26 close to the tapered guide sleeve 23 is inserted into the tapered guide sleeve 23, and the flowing medium in the fluid medium pipeline 22 forms a hollow flowing medium column through the partition column 26 and acts on the peripheral wall of the inner hole of the turned part through the tapered guide sleeve 23 to generate a large impact to flush the inner hole of the part.
[0035] The implementation principle of a powder metallurgy parts turning device in the embodiment of the present application is as follows: during the turning process of a short-length cylindrical part, the coolant pipe 151 can continue to spray coolant onto the outer surface of the part; and the inner hole cleaning component 2 can spray gas or liquid into the inner hole of the part to flush out all the debris in the inner hole of the part. The fluid medium in the fluid medium pipe 22 can form a hollow flow medium column through the dividing column 26, and then the flow medium in this state directly flushes the circumferential hole wall of the inner hole of the part under the guidance of the conical guide sleeve 23. Since the pressure generated by the fluid medium after being divided by the dividing column 26 is relatively large, the impact force is also relatively large, which can form a large impact force on the inner hole wall of the part to flush away the cutting chips attached to the inner hole wall of the part.
[0036] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.
Claims
1. A powder metallurgy parts turning device, characterized in that: The invention comprises a lathe (1) and an inner hole cleaning assembly (2), wherein the lathe (1) comprises a frame (11), a transmission sleeve (12), a three-jaw chuck (13), a motor group (14) and a rotating tool holder (15), wherein the transmission sleeve (12) is rotatably mounted on the frame (11), the three-jaw chuck (13) is connected to the transmission sleeve (12) and rotates synchronously, the three-jaw chuck (13) is suitable for clamping parts, and the motor group (14) is connected to the transmission sleeve (12) to drive the three-jaw chuck (13) to rotate synchronously. The transmission sleeve (12) rotates, the rotating tool holder (15) is located on a side of the three-jaw chuck (13) away from the transmission sleeve (12) and is movably mounted on the frame (11), the rotating tool holder (15) is suitable for mounting a tool, a coolant pipe (151) is provided on the rotating tool holder (15), the coolant pipe (151) is suitable for spraying coolant onto the part being turned, and the inner hole cleaning component (2) is installed in the transmission sleeve (12) and is suitable for cleaning debris in the inner hole of the part being turned; The inner hole cleaning assembly (2) comprises a sliding ring plate (21), a fluid medium pipeline (22) and a conical guide sleeve (23); the sliding ring plate (21) is arranged inside the transmission sleeve (12) near one end of the three-jaw chuck (13); the sliding ring plate (21) can slide and retract in the transmission sleeve (12) along the axial direction of the transmission sleeve (12); the transmission sleeve (12) is provided with a limit screw (123); the limit screw (123) can lock the sliding ring plate (21) after sliding to any length; the fluid medium pipeline (22) is inserted into the transmission sleeve (12) and has a flowing medium flowing therein; the fluid medium pipeline One end of the fluid medium pipeline (22) is inserted into the sliding ring plate (21) and is rotatably connected to the sliding ring plate (21); the other end of the fluid medium pipeline (22) passes through the transmission sleeve (12) and is exposed to the outside; a dividing column (26) is provided at the center of the inner hole of the sliding ring plate (21); the conical guide sleeve (23) is provided on a side of the sliding ring plate (21) close to the three-jaw chuck (13); one end of the dividing column (26) is inserted into the conical guide sleeve (23); the flowing medium in the fluid medium pipeline (22) passes through the dividing column (26) to form a hollow flowing medium column and acts on the peripheral wall of the inner hole of the turned part through the conical guide sleeve (23).
2. A powder metallurgy parts turning device according to claim 1, characterized in that: The end of the tapered guide sleeve (23) with a larger inner diameter faces the three-jaw chuck (13).
3. A powder metallurgy parts turning device according to claim 1, characterized in that: Cooling liquid or gas is passed into the fluid medium pipeline (22).
4. A powder metallurgy parts turning device according to claim 1, characterized in that: The fluid medium pipeline (22) is a hard pipe body, and one end of the fluid medium pipeline (22) connected to the sliding ring plate (21) is sleeved with a wear-resistant sleeve (24), and the wear-resistant sleeve (24) is inserted into the inner hole of the sliding ring plate (21) and is rotatably connected to the sliding ring plate (21).
5. The powder metallurgy parts turning device according to claim 1, characterized in that: A connecting strip is fixedly mounted on the outer wall of the partition column (26), and one end of the connecting strip away from the partition column (26) is fixedly connected to the inner hole wall of the sliding ring plate (21).
6. A powder metallurgy parts turning device according to any one of claims 1 to 5, characterized in that: An orientation block (211) is provided on the outer wall of the sliding ring plate (21), an orientation groove (121) is provided on the inner wall of the transmission sleeve (12), and the orientation block (211) is inserted into the orientation groove (121) and slides in the orientation groove (121).
7. A powder metallurgy parts turning device according to claim 6, characterized in that: A driving spring (25) is provided on a side of the orientation block (211) away from the three-jaw chuck (13), and the other end of the driving spring (25) abuts against a groove wall of the orientation groove (121) away from the three-jaw chuck (13).
8. The powder metallurgy parts turning device according to claim 6, characterized in that: The bottom of the directional groove (121) is provided with a plurality of threaded holes (122) at intervals, and the limiting top screw (123) is suitable for being inserted and threadedly installed in any of the threaded holes (122) to limit the direction in which the sliding ring plate (21) moves toward the three-jaw chuck (13).