Driving shaft spline machining method

Abstract

The invention relates to the technical field of driving shaft machining, in particular to a driving shaft spline machining method. The semi-finished shaft is grabbed from the feeding assembly; on the basis that the semi-finished shaft is grabbed, the semi-finished shaft is placed on a positioning assembly; on the basis that the semi-finished shaft is located on the positioning assembly, splines are machined on the peripheral face of the end, away from the universal joint shell, of the shaft rod, and meanwhile cooling liquid is sprayed to the shaft rod till the driving shaft is machined and formed; the driving shaft is grabbed on the basis of completion of processing of the driving shaft; on the basis that grabbing of the driving shaft is completed, the driving shaft is adjusted to the oil dripping posture; controlling the driving shaft to keep still and accumulating pause duration based on the condition that the driving shaft is in the oil dripping posture; and on the basis that the pause duration reaches the preset duration, the driving shaft is placed on the discharging assembly. Therefore, the problem of how to efficiently clean the residual cooling liquid in the shaft hole after the spline is processed on the driving shaft is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of drive shaft processing, and in particular to a drive shaft spline processing method. Background Art

[0002] The drive shaft as a whole is a long strip-shaped shaft structure, with a ball cage structure connected to one end, and the outer peripheral surface of the other end needs to be formed into a spline through a cold rolling process, and the end where the spline is located is hollow to achieve weight reduction and facilitate the subsequent insertion of connectors. In the process of machining the hollow spline, due to the continuous friction between the machining tool and the drive shaft workpiece, a large amount of heat is easily generated and causes wear on the machining surface, so a continuous supply of cooling oil is required. On the one hand, the cooling oil can form a lubricating film on the machining contact surface, reducing the direct friction between the machining tool and the workpiece, reducing tool wear and the risk of scratches on the workpiece surface; on the other hand, it can quickly take away the heat generated in the machining area, avoiding problems such as softening and deformation of the workpiece due to local overheating, and ensuring the machining accuracy of the spline and the stability of the machining process.

[0003] However, because the splined end of the drive shaft is hollow after machining, the cooling oil injected during machining is retained in the hollow cavity due to gravity, forming residual cooling oil that cannot be drained away. After the drive shaft is machined, this residual cooling oil will slowly drip from the shaft onto the machining table, conveyor belt, floor, and other equipment surfaces during subsequent transportation, storage, or transfer to the next workstation. This not only pollutes the machining environment but also requires additional manpower to clean up the dripping cooling oil, increasing the cleaning workload. Summary of the Invention

[0004] In order to solve the problem of how to efficiently clean the coolant remaining in the shaft hole after processing the spline of the drive shaft, the present invention provides a drive shaft spline processing method, comprising:

[0005] Grab a semi-finished shaft from a loading assembly; wherein the semi-finished shaft comprises an integrally formed shaft rod and a universal joint housing; the shaft rod has an end distal to the universal joint housing having an axial hole; the axial hole is coaxial with the shaft rod;

[0006] Upon completion of grabbing the semi-finished shaft, placing the semi-finished shaft on a positioning assembly;

[0007] Based on the semi-finished shaft being located on the positioning assembly, splines are machined on the outer peripheral surface of the end of the shaft away from the universal joint housing, and coolant is sprayed on the shaft until the drive shaft is formed;

[0008] Based on the completion of the processing of the drive shaft, grab the drive shaft;

[0009] Based on the driving shaft grabbing completion, the driving shaft is adjusted to a oil dripping posture; when the driving shaft is in the oil dripping posture, the included angle between the shaft rod and the horizontal plane is greater than 0, and the end of the shaft rod with the spline is arranged downward;

[0010] Based on the driving shaft being in the oil dripping posture, the driving shaft is controlled to remain static and accumulate the stop duration;

[0011] Based on the stop duration reaching a preset duration, the driving shaft is placed to a discharging assembly.

[0012] In some embodiments, the grabbing assembly includes a mechanical arm, a first clamp jaw and a second clamp jaw; the first clamp jaw and the second clamp jaw are respectively connected with the mechanical arm;

[0013] The driving shaft spline machining method further includes:

[0014] Obtaining the working state of the first clamp jaw and the second clamp jaw;

[0015] Based on the first clamp jaw and the second clamp jaw being in the empty load state, the first clamp jaw is controlled to execute the step of grabbing the semi-finished product shaft from the feeding assembly.

[0016] In some embodiments, the driving shaft spline machining method further includes:

[0017] Based on the first clamp jaw being in the clamping state and the second clamp jaw being in the empty load state, obtaining the working state of a positioning assembly;

[0018] Based on the positioning assembly being in the discharging standby state, the second clamp jaw is controlled to execute the step of grabbing the driving shaft based on the driving shaft machining completion.

[0019] In some embodiments, the driving shaft spline machining method further includes:

[0020] Based on the first clamp jaw and the second clamp jaw being in the clamping state, the second clamp jaw is controlled to execute the step of adjusting the driving shaft to the oil dripping posture based on the driving shaft grabbing completion.

[0021] In some embodiments, the driving shaft spline machining method further includes:

[0022] Based on the stop duration reaching a preset duration and the first clamp jaw and the second clamp jaw being in the clamping state, the first clamp jaw is controlled to execute the step of placing the semi-finished product shaft on the positioning assembly based on the semi-finished product shaft grabbing completion.

[0023] In some embodiments, the driving shaft spline machining method further includes:

[0024] Based on the first gripper being in an empty state and the second gripper being in a clamping state, the second gripper is controlled to perform the step of placing the drive shaft to the blanking assembly based on the stop duration reaching a preset duration.

[0025] In some embodiments, the semi-finished shaft is in a state of being located on the positioning assembly, and the shaft rod is arranged horizontally;

[0026] Based on the completion of the drive shaft grabbing, the drive shaft is adjusted to a oil dripping posture, comprising:

[0027] Based on the completion of the drive shaft grabbing, the first gripper and the second gripper are controlled to rotate synchronously around the rotation axis by a first preset angle until the drive shaft is in the oil dripping posture.

[0028] In some embodiments, the first preset angle is greater than 90°.

[0029] In some embodiments, based on the stop duration reaching a preset duration and the first gripper and the second gripper being in a clamping state, the first gripper is controlled to perform the step of placing the semi-finished shaft on the positioning assembly based on the completion of the semi-finished shaft grabbing, comprising:

[0030] Based on the stop duration reaching a preset duration and the first gripper and the second gripper being in a clamping state, the first gripper and the second gripper are controlled to rotate synchronously around the rotation axis by a second preset angle, and the mechanical arm is controlled to move until the semi-finished shaft is placed on the positioning assembly; wherein the sum of the second preset angle and the first preset angle is 180°.

[0031] The rotating speed of the first gripper and the second gripper in the process of rotating synchronously by the first preset angle is a first rotating speed; the rotating speed of the first gripper and the second gripper in the process of rotating synchronously by the second preset angle is a second rotating speed; the second rotating speed is less than the first rotating speed.

[0032] In some embodiments, the orientation of the gimbal shell relative to the shaft rod is a posture orientation;

[0033] The posture orientation of the semi-finished shaft is opposite to the posture orientation of the drive shaft when the first gripper and the second gripper are in the clamping state.

[0034] To solve the problem of how to efficiently clean the residual cooling liquid in the shaft hole after the drive shaft is processed with splines, the present application has the following advantages:

[0035] By grabbing the drive shaft after the drive shaft is machined, and adjusting the drive shaft to the oil dripping posture, when the drive shaft is in the oil dripping posture, the included angle between the shaft rod and the horizontal plane is greater than 0, and the end of the shaft rod with the spline is arranged downward, then the step of controlling the drive shaft to remain stationary and accumulating the length of the pause, after the length of the pause reaches the preset length, placing the drive shaft to the unloading assembly. In this way, the residual cooling liquid inside the shaft hole of the drive shaft can slowly drip under the action of gravity, so as to fully discharge the residual cooling liquid in the drive shaft, finally solve the problem that a large amount of residual cooling oil exists in the shaft due to the hollow setting after the spline shaft is machined, causing the cooling oil to drip widely and affecting the cleanliness of the production line, and at the same time guarantee the cleanliness of the drive shaft after machining. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 A flowchart of a drive shaft spline machining method of an embodiment is shown;

[0037] Figure 2 A structural schematic diagram of a spline machining device of an embodiment is shown;

[0038] Figure 3 A structural schematic diagram of a grabbing assembly of Figure 2 is shown.

[0039] Fig. 1 is a structural schematic diagram of a spline machining device of an embodiment of the present application. DETAILED DESCRIPTION

[0040] The present disclosure will now be discussed with reference to several example embodiments. It should be appreciated that these embodiments are discussed only to better illustrate the present disclosure and thus enable its better utilization, and are not meant to limit the scope of the present disclosure in any way.

[0041] As used herein, the term "includes" and its variants are to be read as open-ended terms that mean "including, but not limited to." The term "based on" is to be construed as "based at least in part on." The terms "one embodiment" and "an embodiment" are to be read as "at least one embodiment." The term "another embodiment" is to be read as "at least one other embodiment." The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," "longitudinal," and similar terms are used for orientation only and not to limit the application or embodiments thereof. These terms primarily serve to better describe the application and its embodiments and are not used to limit the indicated device, element or component to a particular orientation, or to be constructed and operated in a particular orientation. Also, some of the above terms can be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment or connection relationship in some cases. The specific meanings of these terms in the present application can be understood by those skilled in the art according to the specific circumstances. In addition, the terms "mount," "provide," "have," "connect," and "join" should be interpreted broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal connection between two devices, elements or components. The specific meanings of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances. In addition, the terms "first," "second," and the like are primarily used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0042] The driving shaft 60 is in the form of a long strip-shaped shaft body structure, one end of which is connected with a ball cage structure, and the outer periphery of the other end needs to be formed with a spline through a cold rolling process or the like. The end with the spline is hollow. In the process of machining the hollow spline, continuous friction will occur between the machining tool and the workpiece of the driving shaft 60, which will easily generate a large amount of heat and cause wear of the machining surface. Therefore, cooling oil needs to be continuously supplied. However, because the spline end of the driving shaft 60 after machining is in a hollow structure, the cooling oil injected during machining will remain in the hollow cavity due to the action of gravity, forming residual cooling oil that cannot be discharged by itself. After the spline shaft is machined, these residual cooling oils will slowly drip from the shaft to the machining table, the conveying belt, the ground and the surface of other equipment during subsequent handling, storage or transfer to the next station, not only polluting the machining environment, but also requiring additional manpower to clean the dripping cooling oil, increasing the cleaning workload.

[0043] Embodiment one:

[0044] Therefore, in order to solve the above problems, the present application provides a drive shaft 60 spline machining method. The drive shaft 60 spline machining method is applied to a spline machining device; as shown in the figure Figure 2 The spline machining device includes a feeding assembly 10, a discharging assembly 20, a grabbing assembly 30, a positioning assembly 40 and a spline machining assembly 50. As shown in the figure Figure 1 The drive shaft 60 spline machining method includes steps S10-S70, which will be described in detail below:

[0045] Step S10: grabbing the semi-finished shaft 70 from the feeding assembly 10. The semi-finished shaft 70 includes an integrally formed shaft and a universal joint housing, which can ensure the structural strength of the semi-finished shaft 70 and reduce the risk of workpiece fracture during processing or after entering the market. The end of the shaft away from the universal joint housing has a shaft hole coaxial with the shaft, which can avoid deviation of the machined spline position, thereby ensuring the accuracy of the machining.

[0046] Step S20: based on the completion of grabbing the semi-finished shaft 70, placing the semi-finished shaft 70 on the positioning assembly 40. The positioning assembly 40 can stably support the semi-finished shaft 70 to prevent it from shaking during subsequent spline machining, thereby ensuring the stability and accuracy of the spline machining.

[0047] Step S30: based on the semi-finished shaft 70 being positioned on the positioning assembly 40, machining the spline on the outer peripheral surface of the end of the shaft away from the universal joint housing, and simultaneously spraying cooling liquid on the shaft, until the drive shaft 60 is machined and formed. By spraying cooling liquid during spline machining, the heat generated during machining can be removed, preventing the shaft from deforming due to overheating, reducing frictional wear between the machining tool and the shaft, and prolonging the service life of the machining tool.

[0048] Step S40: based on the completion of machining the drive shaft 60, grabbing the drive shaft 60.

[0049] Step S50: based on the completion of grabbing the drive shaft 60, adjusting the drive shaft 60 to a drip oil posture. When the drive shaft 60 is in the drip oil posture, the included angle between the shaft and the horizontal plane is greater than 0, and the end of the shaft with the spline is arranged downward. It should be understood that adjusting the drive shaft 60 to the drip oil posture with the shaft inclined and the spline end downward can utilize the action of gravity to promote the flow of cooling liquid remaining inside the shaft hole and the spline to the spline end, creating conditions for the dripping and discharge of the cooling liquid.

[0050] Step S60: Based on the driving shaft 60 being in the oil dripping posture, the driving shaft 60 is controlled to remain stationary and accumulate the stop time, ensuring that the cooling liquid remaining inside the shaft hole and spline has sufficient time to slowly drip under the action of gravity, avoiding incomplete discharge of the cooling liquid due to insufficient residence time, and further ensuring the sufficiency of the cooling liquid discharge.

[0051] Step S70: Based on the stop time reaching the preset time, that is, the cooling liquid in the shaft hole and spline has been basically dripped, the driving shaft 60 is placed to the discharging assembly 20 at this time, which can avoid the situation that the cooling liquid drips in the driving shaft 60 during the discharging and subsequent process, maintains the cleanliness of the driving shaft 60 after processing, and ensures the cleanliness of the discharging assembly 20 and the surrounding processing environment.

[0052] Further, as shown in Figure 3 The grabbing assembly 30 includes a mechanical arm 31, a first clamping jaw 32, and a second clamping jaw 33. The first clamping jaw 32 is connected with the mechanical arm 31, the second clamping jaw 33 is connected with the mechanical arm 31, and the mechanical arm 31 can provide movement support for the first clamping jaw 32 and the second clamping jaw 33, realizing the transfer of the first clamping jaw 32 and the second clamping jaw 33 at different positions in the spline processing device.

[0053] The spline processing method of the driving shaft 60 further includes steps S80, which includes steps S81 and S82. The spline processing method of the driving shaft 60 sequentially executes steps S81, S82, S10, S20, S30, S40, S50, S60, S70. Steps S81 and S82 can be described in detail below:

[0054] Step S81: Obtain the working state of the first clamping jaw 32 and the second clamping jaw 33, and master whether the first clamping jaw 32 and the second clamping jaw 33 have a load, so as to avoid repeated execution of the grabbing action when the first clamping jaw 32 or the second clamping jaw 33 has grabbed the semi-finished shaft 70, and to avoid collision or failure of the semi-finished shaft 70.

[0055] Step S82: Based on the first clamping jaw 32 and the second clamping jaw 33 being in the unloaded state, the first clamping jaw 32 is controlled to execute step S10, so as to ensure the stability and accuracy of the grabbing process of the semi-finished shaft 70.

[0056] Further, the step S80 of the spline processing method of the driving shaft 60 further includes steps S83 and S84. The spline processing method of the driving shaft 60 sequentially executes steps S81, S83, S84, S40, S50, S60, S70. Steps S83 and S84 can be described in detail below:

[0057] Step S83: Based on the first gripper 32 being in the clamping state and the second gripper 33 being in the empty state, the working state of the positioning assembly 40 is obtained.

[0058] Step S84: Based on the positioning assembly 40 being in the unloading state, that is, the driving shaft 60 has been machined on the positioning assembly 40, the second gripper 33 is controlled to perform step S40, thereby avoiding damage to the second gripper 33 or the semi-finished shaft 70 caused by mistaken grabbing during machining of the driving shaft 60, and at the same time, the action of grabbing the driving shaft 60 is performed by the second gripper 33, without the need to wait for the first gripper 32 to release the workpiece before operation, thereby improving the use efficiency of the grabbing assembly 30 and ensuring the driving shaft 60.

[0059] Further, the step S80 of the driving shaft 60 spline machining method further includes step S85. The driving shaft 60 spline machining method sequentially performs step S81, step S85, step S50, step S60, and step S70. Step S85 will be described in detail below:

[0060] Step S85: Based on the first gripper 32 and the second gripper 33 both being in the clamping state, the second gripper 33 is controlled to perform step S50. In this way, the cooling liquid of the machined driving shaft 60 is discharged in priority, effectively improving the parallelism and efficiency of the overall machining process. If the semi-finished shaft 70 on the first gripper 32 is placed on the positioning assembly 40 first, the grabbing assembly 30 needs to be controlled to rotate 180°, and then the machined driving shaft 60 needs to be rotated to the oil dripping posture. The whole rotation process has a large angle range and takes a long time, which reduces the machining efficiency. The present application first completes the adjustment of the driving shaft 60 to the oil dripping posture in step S50, and then places the semi-finished shaft 70 on the first gripper 32 on the positioning assembly 40, which can reduce the rotation angle of the mechanical arm 31, thereby improving the overall machining efficiency. At the same time, timely adjustment of the driving shaft 60 to the oil dripping posture can quickly start the cooling liquid dripping process, lay a foundation for subsequent cumulative downtime, ensure sufficient discharge of the cooling liquid, and thus ensure that the driving shaft 60 completes the cooling liquid cleaning before unloading, finally realize the cleanliness of the machined driving shaft 60, and avoid the problem of cooling oil dripping in the subsequent link.

[0061] Further, the step S80 of the driving shaft 60 spline machining method further includes step S86. The driving shaft 60 spline machining method sequentially performs step S81, step S85, step S50, step S60, step S70, and step S86. Step S86 will be described in detail below:

[0062] Step S86: based on the fact that the stoppage duration reaches the preset duration, it is indicated that the drive shaft 60 clamped by the second gripper 33 has completed the cooling liquid drop discharge, at this time, the first gripper 32 and the second gripper 33 are both in the clamping state, it is indicated that the positioning assembly 40 has been in the space state for waiting for feeding, the first gripper 32 is controlled to execute step S20, so as to realize seamless connection of the process from the liquid discharge completion of the drive shaft 60 to the feeding of the semi-finished product shaft 70, avoid the machining gap caused by waiting for the gripper to be idle or the control of the positioning assembly 40, and effectively improve the overall machining efficiency.

[0063] Further, the drive shaft 60 spline machining method further includes step S87. The drive shaft 60 spline machining method sequentially executes step S81, step S85, step S50, step S60, step S70, step S86, and step S87. Step S87 can be described in detail as follows:

[0064] Step S87: based on the fact that the first gripper 32 is in the idle state and the second gripper 33 is in the clamping state, the second gripper 33 is controlled to execute step S70. When the stoppage duration reaches the preset duration, at this time, the drive shaft 60 clamped by the second gripper 33 has completed the cooling liquid drop discharge, the second gripper 33 is controlled to place the drive shaft 60 to the unloading assembly 20. The cleanliness of the drive shaft 60 after machining can be maintained, and the cooling liquid can be prevented from polluting the unloading assembly 20 and the surrounding environment.

[0065] Further, the semi-finished product shaft 70 is horizontally arranged on the positioning assembly 40, so that the end peripheral surface of the universal joint housing is in a flat and easy-to-machine state, a stable machining basis is provided for the spline machining assembly 50, the machining tool is prevented from unevenly contacting the peripheral surface of the shaft due to the inclination of the shaft, and the tooth profile precision of the spline machining is ensured.

[0066] Step S50 includes step S51. The drive shaft 60 spline machining method sequentially executes step S81, step S85, step S51, step S60, step S70, and step S86. Step S51 can be described in detail as follows:

[0067] Step S51: based on the fact that the drive shaft 60 is gripped, the first gripper 32 and the second gripper 33 are controlled to synchronously rotate around the rotation axis by a first preset angle, the synchronous rotation ensures that the drive shaft 60 always maintains a stable clamping state during the rotation process, until the drive shaft 60 is in the oil dripping posture, reliable guarantee is provided for the residual cooling liquid in the shaft hole and the spline shaft hole to smoothly drip under the action of gravity, so as to realize sufficient discharge of the cooling liquid and avoid the problem of cooling oil dripping in the subsequent unloading and circulation process.

[0068] Further, the first preset angle is greater than 90°, so that a larger inclination angle is formed between the shaft rod of the driving shaft 60 and the horizontal plane, and the end of the shaft rod with the spline is further inclined downward, ensuring that the cooling liquid remaining in the shaft hole and the spline has stronger flow power under the action of gravity, and is collected and dripped faster to the end of the spline, avoiding the situation that the cooling liquid is retained in the shaft hole or the spline and cannot be discharged due to too small angle. At the same time, the larger inclination angle can also shorten the time required for the cooling liquid to drip. And controlling the first clamp jaw 32 and the second clamp jaw 33 to rotate synchronously around the rotation axis by the first preset angle for a preset time, so as to reduce the torque of the first clamp jaw 32 and the second clamp jaw 33 respectively bearing the clamped workpiece, and improve the service life of the first clamp jaw 32 and the second clamp jaw 33.

[0069] Further, the step S86 includes a step S861 and a step S862, which are preferred solutions of the step S86. The driving shaft 60 spline machining method sequentially executes the step S81, the step S85, the step S51, the step S60, the step S70, the step S861, and the step S862. The step S861 and the step S862 will be described in detail below:

[0070] The step S861: based on that the pause time reaches the preset time and the first clamp jaw 32 and the second clamp jaw 33 are both in the clamped state, controlling the first clamp jaw 32 and the second clamp jaw 33 to rotate synchronously around the rotation axis by a second preset angle, and controlling the mechanical arm 31 to move until the semi-finished product shaft 70 is placed on the positioning assembly 40. Rotating by the second preset angle ensures that the semi-finished product shaft 70 is accurately rotated to be horizontal, adapts to the feeding requirement of the positioning assembly 40, avoids that the semi-finished product shaft 70 cannot be placed smoothly due to posture deviation, and guarantees the accuracy and smoothness of the semi-finished product shaft 70 feeding. Wherein, the sum of the second preset angle and the first preset angle is 180°.

[0071] Step S862: the rotating speed of the first clamping jaw 32 and the second clamping jaw 33 during the process of rotating the first preset angle is the first rotating speed. The rotating speed of the first clamping jaw 32 and the second clamping jaw 33 during the process of rotating the second preset angle is the second rotating speed, which is less than the first rotating speed. Rotating the first preset angle is to quickly adjust the driving shaft 60 to the oil dripping posture, without high precision. The higher first rotating speed can shorten the rotating time of the first preset angle, and improve the process efficiency. Rotating the second preset angle is to cooperate with the placement of the semi-finished shaft 70, and the semi-finished shaft 70 needs to be accurately matched with the positioning assembly 40. The lower second rotating speed can reduce the inertia during the rotating process of the clamping jaw, avoid the shaking of the semi-finished shaft 70 due to the too fast rotating speed, and ensure the position accuracy of the semi-finished shaft 70 during the placement, which lays a foundation for the accuracy of the subsequent shaft and spline machining. At the same time, slow rotation can also reduce the friction loss between the clamping jaw and the semi-finished shaft 70, and prolong the service life of the clamping jaw. Therefore, in the embodiment, the second preset angle is set to be less than 90°, the first preset angle is set to be greater than 90°, and the second rotating speed is less than the first rotating speed. The technical scheme not only can improve the machining efficiency, but also can improve the positioning accuracy of the semi-finished shaft 70 during the feeding to the positioning assembly 40.

[0072] Further, the orientation of the universal joint housing relative to the shaft is the posture orientation. The first clamping jaw 32 and the second clamping jaw 33 are both in the clamping state, and the posture orientation of the semi-finished shaft 70 is opposite to that of the driving shaft 60. In this way, the centers of gravity of the semi-finished shaft 70 and the driving shaft 60 can be symmetrically distributed on both sides of the mechanical arm 31, reducing the unilateral weight concentration caused by the same posture, thereby realizing the weight balance in the clamping state. The weight balance can reduce the deformation or vibration of the clamping jaw and the mechanical arm 31 caused by uneven force, thereby improving the stability of the overall clamping state, avoiding the position deviation or falling of the workpiece caused by shaking during the transfer or posture adjustment process, and ensuring the reliable operation of the machining process.

[0073] Those skilled in the art can understand that the above-mentioned embodiments are specific cases for implementing the present disclosure, and in actual application, various changes can be made in form and details without departing from the scope of the present disclosure.

Claims

1. A drive shaft spline processing method, applied to a spline processing device; the spline processing device includes a loading component, a blanking component, a gripping component, a positioning component and a spline processing component; characterized in that, The drive shaft spline processing method comprises: Grab a semi-finished shaft from a loading assembly; wherein the semi-finished shaft comprises an integrally formed shaft rod and a universal joint housing; the shaft rod has an end distal to the universal joint housing having an axial hole; the axial hole is coaxial with the shaft rod; Upon completion of grabbing the semi-finished shaft, placing the semi-finished shaft on a positioning assembly; Based on the semi-finished shaft being located on the positioning assembly, splines are machined on the outer peripheral surface of the end of the shaft away from the universal joint housing, and coolant is sprayed on the shaft until the drive shaft is formed; Based on the completion of the processing of the drive shaft, grab the drive shaft; Upon completion of the drive shaft grabbing, the drive shaft is adjusted to an oil-drip posture; when the drive shaft is in the oil-drip posture, the angle between the shaft and the horizontal plane is greater than 0, and the end of the shaft with the spline is arranged downward; Based on the drive shaft being in the oil dripping posture, controlling the drive shaft to remain stationary and accumulating a pause time; Based on the pause time reaching a preset time, the drive shaft is placed into the blanking assembly.

2. A drive shaft spline processing method according to claim 1, characterized in that: The gripping assembly includes a mechanical arm, a first gripper and a second gripper; the first gripper and the second gripper are respectively connected to the mechanical arm; The drive shaft spline processing method further includes: Acquire the working status of the first clamping jaw and the second clamping jaw; Based on the fact that both the first clamping jaw and the second clamping jaw are in an unloaded state, the first clamping jaw is controlled to execute the step of grabbing the semi-finished shaft from the loading assembly.

3. A drive shaft spline processing method according to claim 2, characterized in that: The drive shaft spline processing method further includes: Based on the first clamping jaw being in a clamping state and the second clamping jaw being in an unloaded state, obtaining a working state of the positioning assembly; Based on the positioning component being in a state ready for unloading, the second clamping jaw is controlled to execute the step of grasping the drive shaft based on the completion of the processing of the drive shaft.

4. A drive shaft spline processing method according to claim 3, characterized in that: The drive shaft spline processing method further includes: Based on the fact that both the first clamping jaw and the second clamping jaw are in a clamping state, the second clamping jaw is controlled to execute the step of adjusting the drive shaft to an oil dripping posture based on the completion of the grasping of the drive shaft.

5. A drive shaft spline processing method according to claim 4, characterized in that: The drive shaft spline processing method further includes: Based on the pause time reaching the preset time and the first clamping jaw and the second clamping jaw are both in the clamping state, the first clamping jaw is controlled to execute the step of placing the semi-finished shaft on the positioning assembly based on the completion of the grasping of the semi-finished shaft.

6. A drive shaft spline processing method according to claim 5, characterized in that: The drive shaft spline processing method further includes: Based on the first clamp being in an unloaded state and the second clamp being in a clamping state, the second clamp is controlled to execute the step of placing the drive shaft into the blanking assembly based on the pause time reaching a preset time.

7. A drive shaft spline processing method according to claim 5, characterized in that: When the semi-finished shaft is located on the positioning assembly, the shaft rod is arranged horizontally; The step of adjusting the drive shaft to an oil dripping posture based on the completion of the drive shaft grabbing comprises: Based on the completion of the gripping of the drive shaft, the first clamping jaw and the second clamping jaw are controlled to synchronously rotate around the rotation axis by a first preset angle until the drive shaft is in the oil dripping posture.

8. A drive shaft spline processing method according to claim 7, characterized in that: The first preset angle is greater than 90°.

9. A drive shaft spline processing method according to claim 8, characterized in that: The step of controlling the first clamping jaw to execute the step of placing the semi-finished shaft on the positioning assembly based on the completion of grasping the semi-finished shaft based on the pause duration reaching a preset duration and the first clamping jaw and the second clamping jaw being in a clamping state comprises: Based on the pause time reaching a preset time and the first clamping jaw and the second clamping jaw being in a clamping state, controlling the first clamping jaw and the second clamping jaw to synchronously rotate around the rotation axis by a second preset angle, and controlling the robotic arm to move until the semi-finished shaft is placed on the positioning assembly; wherein the sum of the second preset angle and the first preset angle is 180°; The rotational speed of the first clamping jaw and the second clamping jaw during the synchronous rotation of the first preset angle is a first rotational speed; the rotational speed of the first clamping jaw and the second clamping jaw during the synchronous rotation of the second preset angle is a second rotational speed; the second rotational speed is less than the first rotational speed.

10. A drive shaft spline processing method according to claim 4, characterized in that: The orientation of the universal joint housing relative to the shaft is an attitude orientation; The first clamping jaw and the second clamping jaw are both in the clamping state, and the posture direction of the semi-finished shaft is opposite to the posture direction of the drive shaft.

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