New energy automobile differential mechanism half axle gear machining equipment

Abstract

The invention discloses a new energy automobile differential half axle gear machining device, and relates to the technical field of gear machining, the device comprises a machining table, a rotatable key groove assembly is installed on the machining table, and the key groove assembly is used for machining a spline on the inner side wall of a main shaft; a key groove assembly is arranged on the machining table, a placing piece used for penetrating through the main shaft and supporting the transmission disc is arranged above the key groove assembly, an elastic guide assembly is installed between the placing piece and the machining table, a fence is installed on the top of the machining table, a pressing piece capable of ascending and descending and moving along the fence is arranged above the placing piece, and the pressing piece is used for pressing the transmission disc. And a tooth groove assembly capable of translating is arranged in the direction of one side of the placing piece. Through one-time clamping and the linkage mechanism, continuous automatic machining of splines and tooth grooves of the half axle gear is achieved, multiple times of clamping and repeated positioning are thoroughly avoided, the machining efficiency is remarkably improved, and the phase precision and machining stability of the splines and the tooth grooves are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gear machining, in particular to a new energy automobile differential half shaft gear machining equipment. BACKGROUND

[0002] The differential half shaft gear is one of the core transmission components of the automobile differential, and its main function is to make the left and right drive wheels rotate at different speeds when the vehicle is turning, thereby ensuring the smooth turning of the vehicle. In new energy vehicles, due to the different output characteristics of the drive motor and the requirements of lightweight and high efficiency of the whole vehicle, the differential half shaft gear needs to have higher precision, stronger bearing capacity and better wear resistance. Its structure usually includes a spline inner hole for transmitting torque and a transmission disc tooth groove for engaging with the planetary gear, and the machining precision of these two parts directly affects the smoothness, efficiency and assembly noise of power transmission.

[0003] In the patent with the patent number CN115853996B, a differential half shaft gear and its production device and method are disclosed. After spline machining is completed, the clamping block is reset by rotating the rotating shaft. At this time, the main shaft is removed and is flipped and buckled on the positioning insert block, and the spline insert block on the outside of the positioning insert block is connected with the spline insert. At this time, the gear body is fixed on the clamping assembly again, and the machining of the transmission disc outside tooth groove can be realized. However, this technical solution still has the following defects: 1. After spline machining is completed, the main shaft needs to be removed and flipped and installed in the tooth groove machining station. The multiple loading, unloading, flipping and repositioning of the workpiece between key processes consume a large amount of non-cutting auxiliary time, seriously prolong the overall machining cycle, hinder the automation and continuity of the production process, and increase the risk of damage to the workpiece during transfer. 2. When machining the tooth groove, continuous vibration will be generated. Only the spline insert block is used for circumferential positioning, and there is a lack of effective axial rigid constraint of the workpiece, which may cause the workpiece to jump slightly under the action of cutting force, directly affecting the gear shape precision and surface quality. SUMMARY

[0004] The present application provides a new energy automobile differential half shaft gear machining equipment, which can solve the problems of process dispersion, low efficiency and insufficient axial rigidity of the workpiece during machining caused by the need for step-by-step replacement machining of the spline and tooth groove of the differential half shaft gear in the prior art.

[0005] The purpose of the present application can be achieved by the following technical solutions: The utility model provides a new energy automobile differential half axle gear processing equipment, including the processing table, rotatable keyway assembly is installed on the processing table, and the keyway assembly is used for processing the spline on the inside wall of main shaft, the top of keyway assembly is equipped with the placement piece for passing through the main shaft and supporting the transmission disc, and the elastic guide assembly is installed between placement piece and processing table, the top of processing table is installed with the enclosure, the top of placement piece is equipped with the pressure tight piece of lifting and can move along the enclosure, the pressure tight piece is used for pressing transmission disc, one side direction of placement piece is equipped with the tooth groove assembly of translation, and tooth groove assembly is used for processing the tooth groove on transmission disc, when the placement piece drops the maximum stroke and completes the processing of spline, the tooth groove assembly can automatically press down the placement piece when translating towards transmission disc.

[0006] As a further scheme of the utility model: the keyway assembly includes positioning shaft, cutter blade and rotating disc, the rotating disc is rotatably installed on the top of the processing table, the positioning shaft is coaxially installed on the top of the rotating disc, and the outer diameter of the positioning shaft is equal to the inner diameter of the main shaft, and a plurality of cutter blades are evenly distributed along the outer side wall of the positioning shaft.

[0007] As a further scheme of the utility model: the placement piece includes a conical support ring, a limiting ring, a horizontal column and an arc column, the limiting ring is coaxially connected to the bottom end of the conical support ring, the conical support ring is used to support the bottom of the transmission disc, the limiting ring is passed through the main shaft, and the inner diameter of the limiting ring is equal to the outer diameter of the main shaft, the horizontal column is installed on the outer side wall of the conical support ring, the arc column is connected to the end of the horizontal column, and the height of the horizontal column gradually decreases away from the arc column.

[0008] As a further scheme of the utility model: the elastic guide assembly includes a connecting arm, a guide rod and a spring, a plurality of connecting arms are evenly distributed along the outer side wall of the conical support ring, and a through hole is formed in the connecting arm for the guide rod to pass through, the guide rod is installed on the top of the processing table, the spring is installed between the connecting arm and the processing table, and the spring is sleeved on the guide rod.

[0009] As a further scheme of the utility model: the enclosure is installed with a translation and lifting assembly, the translation and lifting assembly includes an electric sliding rail, an electric sliding block, an inverted L-shaped frame, a tray and a first cylinder, two electric sliding rails are symmetrically installed on the top of the enclosure along the edge, the electric sliding block is slidably arranged on the electric sliding rail, the tray is connected to the electric sliding block through the inverted L-shaped frame, the first cylinder is installed on the top of the tray, and the output end of the first cylinder is connected to the pressure tight piece through the tray.

[0010] As a further scheme of the utility model: the pressure tight piece includes a conical compression ring and a ring disc, the ring disc is coaxially installed at the bottom end of the first cylinder, the conical compression ring is rotatably sleeved on the outside of the ring disc, and the conical compression ring is used to press the top of the transmission disc when it is lowered.

[0011] As a further scheme of the present application: the tooth groove assembly comprises a U-shaped frame, a slotting cutter, a first motor, a second cylinder and a fixed frame with rollers, the second cylinder is arranged through one end of the side wall of the enclosure, and the output end of the second cylinder is connected with the U-shaped frame, the slotting cutter is rotatably arranged in the U-shaped frame, the first motor is arranged on one side of the U-shaped frame and used to drive the slotting cutter to rotate, the fixed frame is arranged at the bottom of the U-shaped frame, the rollers are rotatably arranged between the opposite side walls of the fixed frame close to the bottom end, and the rollers correspond to the positions of the arc-shaped columns.

[0012] As a further scheme of the present application: the tooth groove assembly further comprises a moving frame with a guide groove, two moving frames are symmetrically arranged on the two sides of the U-shaped frame, the inner side wall of the enclosure is provided with a guide convex edge corresponding to the moving frame, and the moving frame is slidably connected with the guide convex edge through the guide groove.

[0013] As a further scheme of the present application: a driving assembly for driving the rotating disc to rotate is arranged on the processing table, the driving assembly comprises a ring-shaped cover, an inner gear ring, a driving gear, a second motor and a support frame, the ring-shaped cover is coaxially arranged at the bottom of the rotating disc, and the ring-shaped cover is rotatably connected with the bottom of the processing table, the inner gear ring is arranged at the inner side wall of the bottom end of the ring-shaped cover, the driving gear is engaged with the inner gear ring, and the driving gear is driven by the second motor, and the second motor is connected with the bottom of the processing table through the support frame.

[0014] As a further scheme of the present application: the annular disc is a hollow structure, and a lubricating assembly is arranged on the annular disc, the lubricating assembly comprises an oil cavity, inclined holes, a longitudinal oil pipe with a first valve, an elbow oil pipe with a second valve and an oil inlet pipe, the oil cavity is arranged in the annular disc, a plurality of inclined holes are distributed along the bottom of the oil cavity in the circumferential direction, the bottom end of the longitudinal oil pipe is communicated with the oil cavity, the top end of the longitudinal oil pipe is communicated with the elbow oil pipe, and the oil inlet pipe is communicated with the top end of the longitudinal oil pipe.

[0015] The present application has the following beneficial effects: 1. In this invention, by integrating the keyway assembly for spline machining and the gear groove assembly for gear groove machining onto the same machining table, and designing a flexible, liftable support for the transmission disk, the gear to be machined can first have its splines machined on its spindle by the keyway assembly after a single clamping. During machining, the support descends along the elastic guide assembly under pressure until the spline machining is completed. Subsequently, without removing the workpiece, the gear groove assembly can directly move towards the transmission disk and automatically press down on the support during contact to separate it from the transmission disk, thus facilitating continuous gear groove machining. This design completely eliminates the cumbersome steps of disassembling, flipping, transferring, and repositioning the workpiece between processes in traditional processes, achieving seamless connection and continuous automated machining of the two core processes of spline and gear groove machining at a single workstation, significantly reducing auxiliary time and greatly improving production efficiency.

[0016] 2. In this invention, by setting a clamping component that can move along the enclosure and can be raised and lowered, it can apply a stable and controllable downward pressure to the top of the workpiece transmission disk during the spline and tooth groove machining process, and together with the keyway assembly, it forms a bidirectional rigid clamping of the workpiece, effectively suppressing vibration and displacement during the cutting process, solving the problem of axial runout of the workpiece during tooth groove machining, thereby significantly improving machining accuracy and surface quality.

[0017] 3. In this invention, through a sophisticated mechanical linkage design, the toothed groove assembly, which moves towards the workpiece, automatically presses down on the placement part after it descends to its maximum stroke following the completion of spline machining. This achieves a seamless and automatic connection between the spline machining and toothed groove machining processes. This process requires no manual intervention or additional operations, significantly reducing auxiliary time and improving production efficiency. Furthermore, it lowers the risk of workpiece damage during process flow, ensuring the continuity and stability of the machining process. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a first-view perspective perspective of a machining equipment for differential half-shaft gears in new energy vehicles according to the present invention. Figure 2 This is a second-view perspective perspective of a machining equipment for a differential half-shaft gear in a new energy vehicle according to the present invention. Figure 3 This is a cross-sectional view of a new energy vehicle differential half-shaft gear processing equipment according to the present invention; Figure 4 This is a perspective view of the splined part of the differential half-shaft gear processing equipment for new energy vehicles according to the present invention; Figure 5This is a perspective view of the connection between the keyway assembly and the drive assembly in a machining equipment for the differential half-shaft gear of a new energy vehicle according to the present invention. Figure 6 This is a perspective view of the connection between the placement component and the elastic guide assembly in a processing equipment for a differential half-shaft gear of a new energy vehicle according to the present invention. Figure 7 This is a perspective view of the connection between the clamping component and the translation and lifting assembly in a new energy vehicle differential half-shaft gear processing equipment according to the present invention. Figure 8 This is a perspective view of the tooth groove assembly in a differential half-shaft gear processing equipment for new energy vehicles according to the present invention; Figure 9 This is a perspective view of the connection between the lubrication component and the clamping component in a processing equipment for a differential half-shaft gear of a new energy vehicle according to the present invention. Figure 10 This is a cross-sectional view of the connection between the lubrication component and the clamping component in a processing equipment for a differential half-shaft gear of a new energy vehicle according to the present invention.

[0020] In the diagram: 10. Spindle; 20. Transmission plate; 100. Machining table; 101. Enclosure; 102. Guide protrusion; 200. Keyway assembly; 201. Positioning shaft; 202. Cutting blade; 203. Turntable; 300. Placement component; 301. Conical support ring; 302. Limiting ring; 303. Horizontal column; 304. Arc-shaped column; 400. Elastic guide assembly; 401. Connecting arm; 402. Guide rod; 403. Spring; 500. Clamping component; 501. Conical pressure ring; 502. Annular disc; 600. Gear assembly; 601. U-shaped frame; 602. Grooving cutter. 603. Knife; 604. First motor; 605. Second cylinder; 606. Roller; 607. Fixed frame; 608. Moving frame; 709. Translation and lifting assembly; 700. Electric slide rail; 701. Electric slider; 702. Inverted L-shaped frame; 704. Tray; 705. First cylinder; 800. Drive assembly; 801. Annular cover; 802. Internal gear ring; 803. Drive gear; 804. Second motor; 805. Support frame; 900. Lubrication assembly; 901. Oil chamber; 902. Inclined hole; 903. Longitudinal oil pipe; 904. Elbow oil pipe; 905. Oil inlet pipe. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0022] like Figures 1-10As shown, this invention relates to a machining equipment for a differential half-shaft gear in a new energy vehicle, comprising a machining table 100, on which a rotatable keyway assembly 200 is mounted. The keyway assembly 200 is used to machine splines on the inner wall of a spindle 10. Above the keyway assembly 200 is a placement member 300 for passing through the spindle 10 and supporting the transmission disc 20. An elastic guide assembly 400 is installed between the placement member 300 and the machining table 100. The top of the machining table 100... The unit is equipped with a barrier 101. Above the placement component 300 is a pressing component 500 that can be raised and lowered and can move along the barrier 101. The pressing component 500 is used to apply pressure to the transmission disk 20. A toothed assembly 600 that can be moved horizontally is provided on one side of the placement component 300. The toothed assembly 600 is used to machine toothed grooves on the transmission disk 20. When the placement component 300 descends to its maximum stroke to complete the spline machining, the toothed assembly 600 can automatically press down on the placement component 300 when it moves horizontally toward the transmission disk 20.

[0023] It should be noted that during use, the spindle 10 of the half-shaft gear to be processed is first passed through the placement member 300, so that the transmission disk 20 is stably placed on the placement member 300 for support; then, the clamping member 500, which can be raised and lowered and can move along the enclosure 101, is moved horizontally to directly above the transmission disk 20 and moves downward, thereby applying a downward clamping force to the transmission disk 20, so that the workpiece as a whole is brought close to the keyway assembly 200 in the vertical direction. At this time, the spline machining can be performed on the inner sidewall of the spindle 10 using the keyway assembly 200. During the machining process, the placement member 300 gradually descends along the elastic guide assembly 400 under the pressure of the clamping member 500 until the spline machining is completed and the spindle 10 can no longer move down; at this time, the spindle 10 is located at the keyway assembly 200. The toothed assembly 600 on one side of the placement component 300 starts and moves towards the transmission disk 20. During the translation, the placement component 300 is automatically pressed down through mechanical contact, so that the workpiece is further kept in a stable and compressed state and the space required for toothed machining is made. The toothed assembly 600 then performs toothed machining on the transmission disk 20. In the entire machining process, the workpiece only needs to be clamped on the placement component 300 once at the beginning. Through the linkage mechanism of the elastic descent of the placement component 300 in spline machining and the automatic pressing down of the placement component 300 when the toothed assembly 600 moves, the continuous automated machining of spline and toothed machining processes on the machining table 100 is realized without the need to disassemble, flip or reposition the workpiece in the middle.

[0024] like Figure 3 and Figure 5 As shown, the keyway assembly 200 includes a positioning shaft 201, a cutting edge 202, and a turntable 203. The turntable 203 is rotatably mounted on the top of the processing table 100. The positioning shaft 201 is coaxially mounted on the top of the turntable 203, and the outer diameter of the positioning shaft 201 is equal to the inner diameter of the spindle 10. Several cutting edges 202 are evenly distributed circumferentially along the outer side wall of the positioning shaft 201.

[0025] It should be noted that, firstly, the inner hole of the spindle 10 is placed on the positioning shaft 201, and the initial positioning and centering are achieved by using the precise outer diameter of the positioning shaft 201, which is equal to the inner diameter of the spindle 10. After the positioning and centering are completed, the inner sidewall of the spindle 10 is cut by using the cutting edge 202, which is evenly distributed along the outer sidewall of the positioning shaft 201, to process the spline.

[0026] like Figure 2 and Figure 6 As shown, the placement component 300 includes a conical support ring 301, a limiting ring 302, a horizontal column 303, and an arc-shaped column 304. The limiting ring 302 is coaxially connected to the bottom end of the conical support ring 301. The conical support ring 301 is used to support the bottom of the transmission disk 20. The limiting ring 302 allows the main shaft 10 to pass through, and the inner diameter of the limiting ring 302 is equal to the outer diameter of the main shaft 10. The horizontal column 303 is installed on the outer wall of the conical support ring 301. The arc-shaped column 304 is connected to the end of the horizontal column 303, and the height of the horizontal column 303 gradually decreases from the end away from the arc-shaped column 304.

[0027] It should be noted that, firstly, the spindle 10 of the half-shaft gear to be processed is passed through the limiting ring 302, so that the bottom of the transmission disk 20 is stably supported on the conical support ring 301. Radial limiting is achieved by the matching of the inner diameter of the limiting ring 302 and the outer diameter of the spindle 10. After the spline processing is completed, when the tooth groove assembly 600 moves towards the transmission disk 20, its structure will contact and squeeze the arc-shaped column 304 connected to the end of the horizontal column 303. This squeezing action is transmitted to the conical support ring 301 through the horizontal column 303, forcing the entire placement part 300 to continue to descend against the external force, thereby completely separating the conical support ring 301 from the bottom of the transmission disk 20, making room and path for the tooth groove processing.

[0028] like Figure 4 and Figure 6 As shown, the elastic guide assembly 400 includes a connecting arm 401, a guide rod 402, and a spring 403. Multiple connecting arms 401 are evenly distributed circumferentially along the outer side wall of the conical support ring 301, and through holes are opened on the connecting arms 401 for the guide rod 402 to pass through. The guide rod 402 is installed on the top of the processing table 100, and the spring 403 is installed between the connecting arm 401 and the processing table 100, and the spring 403 is sleeved on the guide rod 402.

[0029] It should be noted that when the conical support ring 301 is subjected to the compressive force from the upper clamping member 500, the connecting arms 401, which are evenly distributed circumferentially on the outer side wall of the conical support ring 301, will move downward synchronously. The through holes on the connecting arms 401 allow them to make precise vertical guiding movements along the guide rod 402 fixedly installed on the top of the processing table 100. During this process, the spring 403 sleeved on the guide rod 402 is compressed between the connecting arm 401 and the processing table 100. The elastic reaction force generated by the spring 403 provides controllable flexible support and buffer for the conical support ring 301 and the workpiece it supports. When the pressure is released, the compressed spring 403 releases energy and pushes the connecting arm 401 to reset upward along the guide rod 402, thereby driving the conical support ring 301 back to the initial support position.

[0030] like Figure 4 and Figure 7 As shown, a translation and lifting assembly 700 is installed on the enclosure 101. The translation and lifting assembly 700 includes an electric slide rail 701, an electric slider 702, an inverted L-shaped frame 703, a tray 704, and a first cylinder 705. The two electric slide rails 701 are symmetrically installed on the top edge of the enclosure 101. The electric slider 702 is slidably mounted on the electric slide rail 701. The tray 704 is connected to the electric slider 702 through the inverted L-shaped frame 703. The first cylinder 705 is installed on the top of the tray 704, and the output end of the first cylinder 705 passes through the tray 704 and is connected to the clamping member 500.

[0031] It should be noted that the two electric slide rails 701 installed on the top edge of the enclosure 101 drive the inverted L-shaped frame 703 and the tray 704 to move horizontally in a specified direction via the electric slider 702 on them. This accurately moves the first cylinder 705 installed on the top of the tray 704 and the clamping member 500 connected to its output end to directly above the transmission plate 20. Then the first cylinder 705 is activated, its output end extends downward, drives the clamping member 500 to descend and applies a stable vertical clamping force to the transmission plate 20. After the clamping action is completed, the first cylinder 705 retracts its output end, and the electric slider 702 can once again drive the entire translation and lifting assembly 700 and the clamping member 500 to move away from the processing area.

[0032] like Figure 1 and Figure 7 As shown, the clamping member 500 includes a conical pressure ring 501 and an annular disk 502. The annular disk 502 is coaxially mounted on the bottom end of the first cylinder 705. The conical pressure ring 501 is rotatably fitted on the outside of the annular disk 502, and the conical pressure ring 501 is used to apply pressure to the top of the transmission disk 20 during descent.

[0033] It should be noted that when the first cylinder 705 is started, its output end drives the coaxially mounted annular disk 502 to descend, which in turn drives the conical pressure ring 501, which is rotated and mounted on the outside of the annular disk 502, to move down synchronously. During the descent, the conical pressure ring 501 contacts and applies pressure to the top of the transmission disk 20. At the same time, its rotating structure helps to achieve uniform and stable clamping, ensuring that the conical pressure ring 501 can also rotate with the keyway assembly 200 when it rotates the workpiece during the machining of the tooth groove.

[0034] like Figure 1 and Figure 8 As shown, the toothed assembly 600 includes a U-shaped frame 601, a grooving cutter 602, a first motor 603, a second cylinder 604, and a fixed frame 606 with rollers 605. The second cylinder 604 is disposed through one end of the side wall of the enclosure 101, and the output end of the second cylinder 604 is connected to the U-shaped frame 601. The grooving cutter 602 is rotatably mounted inside the U-shaped frame 601. The first motor 603 is disposed on one side of the U-shaped frame 601 and is used to drive the grooving cutter 602 to rotate. The fixed frame 606 is installed at the bottom of the U-shaped frame 601. The rollers 605 are rotatably mounted between the opposing side walls of the fixed frame 606 near the bottom end, and the rollers 605 are positioned corresponding to the arc-shaped column 304.

[0035] It should be noted that the second cylinder 604 drives the U-shaped frame 601 to translate, causing the roller 605 on the fixed frame 606 to move to the position corresponding to the arc-shaped column 304. During this translation process, the roller 605 contacts the arc-shaped column 304 and rolls along its surface, thereby transmitting pressure through the arc-shaped column 304. At the same time, the first motor 603 starts and drives the grooving cutter 602, which is rotatably installed in the U-shaped frame 601, to rotate in order to perform cutting.

[0036] like Figure 1 and Figure 8 As shown, the toothed assembly 600 also includes a movable frame 607 with a guide groove. Two movable frames 607 are symmetrically installed on both sides of the U-shaped frame 601. The inner sidewall of the enclosure 101 is equipped with a guide protrusion 102 corresponding to the movable frame 607, and the movable frame 607 is slidably connected to the guide protrusion 102 through the guide groove.

[0037] It should be noted that the second cylinder 604 drives the U-shaped frame 601 to translate. The movable frame 607, which is symmetrically installed on both sides of the U-shaped frame 601, is slidably connected to the guide protrusion 102 installed on the inner side wall of the enclosure 101 through the guide groove on it, thereby ensuring the smooth and precise guidance of the translation process of the U-shaped frame 601. At the same time, the roller 605 on the fixed frame 606 installed at the bottom of the U-shaped frame 601 moves with the U-shaped frame 601 to the position corresponding to the arc-shaped column 304 and contacts it. During this process, the first motor 603 starts and drives the grooving cutter 602 installed in the U-shaped frame 601 to rotate to perform cutting processing.

[0038] like Figure 3 and Figure 5 As shown, a drive assembly 800 for rotating the turntable 203 is installed on the processing table 100. The drive assembly 800 includes an annular cover 801, an internal gear ring 802, a drive gear 803, a second motor 804, and a support frame 805. The annular cover 801 is coaxially mounted on the bottom of the turntable 203 and is rotatably connected to the bottom of the processing table 100. The internal gear ring 802 is installed on the inner side wall of the bottom end of the annular cover 801. The drive gear 803 meshes with the internal gear ring 802 and is driven by the second motor 804. The second motor 804 is connected to the bottom of the processing table 100 through the support frame 805.

[0039] It should be noted that the second motor 804 is fixed to the bottom of the processing table 100 by the support frame 805 and drives the drive gear 803 to rotate. The rotating drive gear 803 meshes with the internal gear ring 802 installed on the inner side wall of the bottom end of the annular cover 801, thereby driving the annular cover 801 to rotate. Since the annular cover 801 is coaxially installed at the bottom of the turntable 203 and rotatably connected to the bottom of the processing table 100, the turntable 203 is driven to rotate smoothly.

[0040] like Figure 7 and Figures 9-10 As shown, the annular disk 502 has a hollow structure, and a lubrication assembly 900 is installed on the annular disk 502. The lubrication assembly 900 includes an oil cavity 901, oblique holes 902, a longitudinal oil pipe 903 with a first valve, an elbow oil pipe 904 with a second valve, and an oil inlet pipe 905. The oil cavity 901 is located inside the annular disk 502. Several oblique holes 902 are distributed circumferentially along the bottom of the oil cavity 901. The bottom end of the longitudinal oil pipe 903 is connected to the oil cavity 901, and the top end of the longitudinal oil pipe 903 is connected to the elbow oil pipe 904. The oil inlet pipe 905 is connected to the top end of the longitudinal oil pipe 903.

[0041] It should be noted that in this embodiment, the oil inlet pipe 905 is connected to an external oiling device via a hose, and an oil outlet is provided on the side wall near the bottom of the enclosure 101 for discharging and recycling the collected lubricating oil. During the spline machining stage, the first valve of the lubrication assembly 900 is opened and the second valve is closed. The external lubricant enters the oil chamber 901 through the oil inlet pipe 905 and the longitudinal oil pipe 903, and is finally sprayed out from the circumferentially distributed oblique holes 902 at the bottom of the annular disk 502, flowing along the inner wall of the spindle 10 to achieve lubrication during the spline cutting process. After the spline machining is completed, the lubrication mode is switched, the first valve is closed and the second valve is opened, and the lubricant flows to the tooth groove machining area through the elbow oil pipe 904. The lubricating oil that overflows can be collected and recycled from the oil outlet at the bottom of the enclosure 101.

[0042] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A new energy vehicle differential half shaft gear machining equipment, comprising a machining table (100), characterized in that, The machining table (100) is provided with a rotatable key groove assembly (200), which is used for machining the spline on the inner side wall of the main shaft (10), the upper side of the key groove assembly (200) is provided with a placing piece (300) for passing through the main shaft (10) and supporting the transmission disc (20), and the placing piece (300) and the machining table (100) are provided with an elastic guide assembly (400), the top of the machining table (100) is provided with a fence (101), the upper side of the placing piece (300) is provided with a pressure piece (500) which can be lifted and moved along the fence (101), and the pressure piece (500) is used for pressing the transmission disc (20), one side of the placing piece (300) is provided with a translatable gear slot assembly (600), and the gear slot assembly (600) is used for machining the gear slot on the transmission disc (20), when the placing piece (300) is lowered to the maximum stroke to complete the spline machining, the gear slot assembly (600) can automatically press down the placing piece (300) when it is translated towards the transmission disc (20).

2. The new energy vehicle differential semi-axle gear machining device according to claim 1, characterized in that, The key groove assembly (200) comprises a positioning shaft (201), a cutter blade (202) and a rotating disc (203), the rotating disc (203) is rotatably installed on the top of the machining table (100), the positioning shaft (201) is coaxially installed on the top of the rotating disc (203), and the outer diameter of the positioning shaft (201) is equal to the inner diameter of the main shaft (10), and a plurality of cutter blades (202) are evenly distributed along the outer side wall of the positioning shaft (201).

3. The new energy vehicle differential semi-axle gear machining device according to claim 1, characterized in that, The placing piece (300) comprises a conical supporting ring (301), a limiting ring (302), a horizontal column (303) and an arc column (304), the limiting ring (302) is coaxially connected to the bottom end of the conical supporting ring (301), the conical supporting ring (301) is used for supporting the bottom of the transmission disc (20), the limiting ring (302) is passed through the main shaft (10), and the inner diameter of the limiting ring (302) is equal to the outer diameter of the main shaft (10), the horizontal column (303) is installed on the outer side wall of the conical supporting ring (301), the arc column (304) is connected to the end of the horizontal column (303), and the height of the horizontal column (303) gradually decreases from the end away from the arc column (304).

4. The new energy vehicle differential semi-axle gear machining device according to claim 3, characterized in that, The elastic guide assembly (400) comprises a connecting arm (401), a guide rod (402) and a spring (403), a plurality of connecting arms (401) are evenly distributed along the outer side wall of the conical supporting ring (301), and a through hole is formed in the connecting arm (401) for the guide rod (402) to pass through, the guide rod (402) is installed on the top of the machining table (100), the spring (403) is installed between the connecting arm (401) and the machining table (100), and the spring (403) is sleeved on the guide rod (402).

5. The new energy vehicle differential semi-axle gear machining device according to claim 1, characterized in that, The fence (101) is provided with a translation lifting assembly (700), the translation lifting assembly (700) comprises electric sliding rails (701), electric sliding blocks (702), inverted L-shaped frames (703), trays (704) and first cylinders (705), two electric sliding rails (701) are symmetrically installed on the top edges of the fence (101), the electric sliding blocks (702) are slidingly arranged on the electric sliding rails (701), the trays (704) are connected with the electric sliding blocks (702) through the inverted L-shaped frames (703), and the first cylinders (705) are installed on the top of the trays (704), and the output ends of the first cylinders (705) penetrate the trays (704) and are connected with the pressing pieces (500).

6. The new energy vehicle differential semi-axle gear machining device according to claim 5, characterized in that, The pressing piece (500) comprises a conical pressing ring (501) and an annular disc (502), the annular disc (502) is coaxially installed at the bottom end of the first cylinder (705), the conical pressing ring (501) is rotatably sleeved outside the annular disc (502), and the conical pressing ring (501) is used for pressing the top of the transmission disc (20) when descending.

7. The new energy vehicle differential semi-axle gear machining device according to claim 3, characterized in that, The tooth groove assembly (600) comprises a U-shaped frame (601), a slotting cutter (602), a first motor (603), a second cylinder (604) and a fixed frame (606) provided with rollers (605), the second cylinder (604) penetrates one end of the side wall of the fence (101), the output end of the second cylinder (604) is connected with the U-shaped frame (601), the slotting cutter (602) is rotatably installed in the U-shaped frame (601), the first motor (603) is arranged on one side of the U-shaped frame (601) and is used for driving the slotting cutter (602) to rotate, the fixed frame (606) is installed at the bottom of the U-shaped frame (601), the rollers (605) are rotatably installed between the opposite side walls of the fixed frame (606) close to the bottom end, and the rollers (605) correspond to the positions of the arc-shaped columns (304).

8. The new energy vehicle differential semi-axle gear machining device according to claim 7, characterized in that, The tooth groove assembly (600) further comprises moving frames (607) provided with guide grooves, two moving frames (607) are symmetrically installed on the two sides of the U-shaped frame (601), the inner side walls of the fence (101) are provided with guide convex edges (102) corresponding to the moving frames (607), and the moving frames (607) are slidingly connected with the guide convex edges (102) through the guide grooves.

9. The new energy vehicle differential semi-axle gear machining device according to claim 2, characterized in that, The processing platform (100) is provided with a driving assembly (800) for driving the rotary disc (203) to rotate, the driving assembly (800) comprises an annular cover (801), an inner gear ring (802), a driving gear (803), a second motor (804) and a supporting frame (805), the annular cover (801) is coaxially arranged at the bottom of the rotary disc (203), and the annular cover (801) is rotationally connected with the bottom of the processing platform (100), the inner gear ring (802) is arranged at the inner side wall of the bottom end of the annular cover (801), the driving gear (803) is engaged with the inner gear ring (802), and the driving gear (803) is driven by the second motor (804), and the second motor (804) is connected with the bottom of the processing platform (100) through the supporting frame (805).

10. The new energy vehicle differential semi-axle gear machining device according to claim 6, characterized in that, The annular disc (502) is a hollow structure, and a lubricating assembly (900) is arranged on the annular disc (502), the lubricating assembly (900) comprises an oil cavity (901), inclined holes (902), a longitudinal oil pipe (903) provided with a first valve, an elbow oil pipe (904) provided with a second valve and an oil inlet pipe (905), the oil cavity (901) is arranged in the annular disc (502), a plurality of inclined holes (902) are distributed in the circumferential direction of the bottom of the oil cavity (901), the bottom end of the longitudinal oil pipe (903) is communicated with the oil cavity (901), the top end of the longitudinal oil pipe (903) is communicated with the elbow oil pipe (904), and the oil inlet pipe (905) is communicated with the top end of the longitudinal oil pipe (903).

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