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CN-122008002-A - Processing device for automobile transmission shaft

CN122008002ACN 122008002 ACN122008002 ACN 122008002ACN-122008002-A

Abstract

The invention relates to the technical field of polishing devices and discloses a processing device of an automobile transmission shaft, which comprises a machine tool, a side plate, a clamping mechanism, an axial driving mechanism and a processing assembly, wherein the processing assembly comprises a shell, a rotating body, a rotary driving mechanism, two groups of processing components which are vertically arranged and have different materials and a retraction control system for driving the two groups of processing components to alternately approach or depart from the transmission shaft, the retraction control system drives the two groups of processing components to switch opposite radial positions, so that the rapid conversion of a grinding mode and a polishing mode can be realized, the device can continuously finish the finish processing of all surfaces of the transmission shaft from grinding to polishing in one-time clamping, and the problems of process flow cutting, large repeated positioning error, long auxiliary time and low production efficiency in the traditional multi-equipment and multi-working are effectively solved, and the processing precision and the process integration are remarkably improved.

Inventors

  • WU HUIBO
  • ZHANG SHOUXING

Assignees

  • 山东来博智能制造有限公司

Dates

Publication Date
20260512
Application Date
20260331

Claims (10)

  1. 1. The machining device for the automobile transmission shaft comprises a machine tool (1), side plates (2) fixed at two ends of the machine tool (1) and extending upwards, a clamping mechanism (3) assembled outside the side plates (2) and used for clamping the fixed transmission shaft, a machining president (5) arranged between the side plates (2) and used for allowing the transmission shaft to pass through, and an axial driving mechanism (4) for driving the machining president (5) to axially move, and is characterized in that the machining president (5) has two working modes of grinding and polishing, and continuous surface finish machining from grinding to polishing of the transmission shaft can be completed in one clamping; The processing president (5) comprises a shell (51) in transmission connection with an axial driving mechanism (4), a rotating body (52) rotatably arranged in the shell (51), a rotary driving mechanism (53) arranged at the end side of the shell (51) and used for driving the rotating body (52) to rotate, two groups of processing components (54) which are circumferentially arranged at one side of the rotating body (52) and vertically distributed, and a retraction control system arranged at the other side of the rotating body (52) and used for alternately driving the two groups of processing components (54) to be close to or far away from a transmission shaft, wherein the retraction control system can drive the two groups of processing components (54) to switch opposite radial positions along the rotating body (52), namely when one group of processing components (54) are radially polymerized, the other group of processing components (54) synchronously and radially deviate, and the rapid conversion from grinding to polishing operation can be realized by the mode of contacting the transmission shaft by one of the two groups due to different materials.
  2. 2. The device for machining a transmission shaft of an automobile according to claim 1, wherein the end face of the rotor (52) is provided with annular grooves (522), the inner wall of the housing (51) extends out of a limit convex ring (511) embedded in the annular grooves (522), the end face of the rotor (52) located in the area between the annular grooves (522) is recessed inward, and a driven toothed ring (521) is fixed for receiving transmission torque from the rotary driving mechanism (53).
  3. 3. The apparatus for machining a propeller shaft of an automobile according to claim 2, wherein the rotary driving mechanism (53) comprises a housing (531) fixed to a side wall of the housing (51), a driving gear (532) and a rotating shaft (533) rotatably provided in the housing (531) and coaxially fixed, and a second motor (534) assembled with the rotating shaft (533) through a coupling, the second motor (534) is fixed to the side wall of the housing (531), and a contact surface of the housing (531) and the housing (51) is communicated to keep the driving gear (532) engaged with the driven ring gear (521).
  4. 4. The processing device of the automobile transmission shaft according to claim 2, wherein the surface of the rotating body (52) is provided with radial sliding grooves (523) which are uniformly distributed in the circumferential direction, two sides of each radial sliding groove (523) are rigidly fixed with straight rails (524) which are symmetrically arranged, the processing assembly (54) is arranged in the corresponding straight rail (524) in a sliding manner and comprises a surface processing unit (541) which can slide along the straight rail (524) and a connecting arm (542) which is fixed on the side wall of the surface processing unit (541) and movably passes through the radial sliding grooves (523), and the two groups of processing assemblies (54) can switch the opposite radial positions of the radial sliding grooves (523) under the driving of the retraction control system, so that the conversion from grinding to polishing operation under the same clamping state is realized.
  5. 5. The apparatus of claim 4, wherein the retraction control system comprises a switching cam (55) rotatably mounted on the other side wall of the rotor (52), a retainer ring (56) for locking the switching cam (55), and a locking assembly (57) for fixing the retainer ring (56) to the side wall of the rotor (52).
  6. 6. The device for machining a propeller shaft of an automobile according to claim 5, wherein the switching cam (55) has two sets of guide grooves (551) on its surface for controlling the two sets of machining units (54) to switch the opposite radial positions of the radial slide grooves (523), the guide grooves (551) for adjusting polishing being inclined in a clockwise direction from inside to outside, and the guide grooves (551) for adjusting polishing being inclined in a counterclockwise direction from inside to outside.
  7. 7. The device for machining the automobile transmission shaft according to claim 6, wherein the end face of the switching cam (55) is fixedly provided with a positioning block (553), the limiting ring (56) can axially slide along the direction perpendicular to the surface of the rotating body (52) so as to be separated from or attached to the surface of the switching cam (55), the inner wall of the limiting ring (56) is provided with a first positioning hole (561) and a second positioning hole (562) for enabling the positioning block (553) to selectively fall into, and the side wall of the rotating body (52) is provided with marked lines corresponding to the positions of the first positioning hole (561) and the second positioning hole (562) respectively and used for indicating the falling position of the positioning block (553).
  8. 8. The processing device for the automobile transmission shaft according to claim 4 or 7, wherein the surface treatment unit (541) comprises a slider body (5411) slidably connected with the straight rail (524), a flow guide channel for conveying media is arranged in the middle of the slider body (5411), a plug cavity located at the periphery of the flow guide channel is formed in four corners of the slider body, a grinding piece (5412) extending to one side of the transmission shaft is arranged in the plug cavity, the grinding piece (5412) comprises a rod body (54121) extending along the axial direction of the plug cavity and a contact head (54122) fixed at the end part of the rod body (54121), the rod body (54121) movably penetrates through the side wall of the plug cavity and extends into the cavity, a spring (5413) is further arranged in the plug cavity, a plug piece abutting against the spring (5413) is fixed in the portion of the rod body (54121), a valve seat (5414) is fixed in the flow guide channel, and a valve core (5415) fixed with the plug piece and capable of sliding synchronously with the plug piece is further fixed in the flow guide channel.
  9. 9. The device for machining a transmission shaft of an automobile according to claim 8, wherein two rotary joints (59) for conveying media are further arranged on one side of the machining assembly (54), the two rotary joints (59) are arranged in a mode of overlapping from inside to outside, each rotary joint (59) comprises a movable ring (591) fixed on the side wall of the rotary body (52) and a stationary ring (592) rotatably clamped on the outer side of the movable ring (591), a side cover (58) is fixedly arranged on the side wall of the rotary body (52) close to the machining assembly (54), and the stationary ring (592) is fixed inside the side cover (58).
  10. 10. The processing device for the automobile transmission shaft according to claim 9, wherein the outer-layer rotating ring (591) is connected with the guide passage of the surface treatment unit (541) responsible for polishing through a conduit (593) connected with the outer-layer rotating ring, and the outer-layer stationary ring (592) is connected with the supply source of oil, the inner-layer rotating ring (591) is connected with the guide passage of the surface treatment unit (541) responsible for polishing through a conduit (593) connected with the inner-layer rotating ring, and the inner-layer stationary ring (592) is connected with the supply source of heat flow.

Description

Processing device for automobile transmission shaft Technical Field The invention relates to the technical field of polishing devices, in particular to a processing device of an automobile transmission shaft. Background In the manufacturing process of the automobile transmission shaft, polishing and polishing are a key finishing process, the implementation quality of the process directly influences the surface finish (glossiness), fatigue resistance and overall service life of the transmission shaft, various technical schemes exist in the field for improving the adaptability and efficiency of polishing, for example, chinese patent document CN213647088U discloses a high-efficiency polishing device for processing the transmission shaft, the device mainly comprises a supporting platform, a motor case arranged on the supporting platform, a motor shaft driven by the motor case and a driving gear fixed on the motor shaft, the driving gear is meshed with an outer annular sleeve, the inner side of the outer annular sleeve is connected with a spring mechanism through a fixed sleeve, one end of the spring acts on a baffle plate, the baffle plate is connected with a slidable polishing assembly (such as a sliding rod and a polishing sheet), and the working principle is that the polishing assembly is driven to radially displace through compression and rebound of the spring, so that the polishing requirements of transmission shafts with different diameters are met, and certain universality is realized. However, the prior art and the similar devices are usually focused on the optimization of a single polishing process, the functions are single, in actual industrial production, in order to achieve the high standard surface quality (such as mirror-level glossiness) specified by a transmission shaft product, multiple-pass process processing is needed in sequence, for example, from grinding to polishing, at present, the common practice is to transfer, reclassify and position workpieces between devices or production lines with different functions for multiple times, and the discrete processing mode has the obvious disadvantages of splitting the process flow, complicated operation, poor automation and continuity, and repeated loading and unloading and carrying of the workpieces, so that the auxiliary time is increased, the whole processing period is prolonged, the production efficiency is influenced, the risk of processing precision is possibly accumulated due to multiple positioning errors, and meanwhile, the labor and logistics cost are increased. Disclosure of Invention In order to overcome the defects in the prior art, the technical problem to be solved by the application is how to provide a device which can integrate all key surface finishing procedures from grinding to polishing of a transmission shaft on one piece of equipment and automatically complete continuous and sequential processing after one-time clamping of a workpiece, so as to fundamentally overcome the defects of process flow cutting, low production efficiency and difficult guarantee of processing precision caused by multi-equipment transportation and repeated clamping in the prior art. The invention provides a processing device of an automobile transmission shaft, which comprises a machine tool, side plates fixed at two ends of the machine tool and extending upwards, a clamping mechanism assembled at the outer sides of the side plates and used for clamping and fixing the transmission shaft, a processing president arranged between the side plates and used for the transmission shaft to pass through, and an axial driving mechanism for driving the processing president to move along the axial direction, wherein the processing president has two working modes of grinding and polishing, and can finish continuous surface finish machining of the transmission shaft from grinding to polishing in one clamping; the processing president comprises a shell, a rotating body, a rotary driving mechanism, two groups of processing components and a retraction control system, wherein the shell is in transmission connection with the axial driving mechanism, the rotating body is rotatably arranged in the shell, the rotary driving mechanism is arranged at the end side of the shell and is used for driving the rotating body to rotate, the two groups of processing components are circumferentially arranged at one side of the rotating body and are vertically distributed, the retraction control system is arranged at the other side of the rotating body and is used for alternately driving the two groups of processing components to be close to or far away from a transmission shaft, the retraction control system can drive the two groups of processing components to switch opposite radial positions along the rotating body, namely, when one group of processing components are radially polymerized, the other group of processing components synchronously and radially deviate, and due to different mate