Double-station machine tool for machining rolling ring groove of hollow automobile half shaft

Abstract

The invention relates to the technical field of rolling ring groove processing machine tools, in particular to a double-station machine tool for hollow automobile half axle rolling ring groove processing, which comprises a mounting frame, conical columns, bearings and a double-station rolling mechanism, the mounting frame is connected with the two bearings, each bearing is rotatably connected with one conical column, the tips of the two conical columns are oppositely arranged, and the double-station rolling mechanism is arranged on the mounting frame. A double-station rolling mechanism is connected to the mounting frame, the output end of the double-station rolling mechanism faces the position between the two conical columns, and the inner walls of the ends of the conical columns are in contact fit with the conical side walls of the conical columns, so that hollow half shafts with different inner diameters can be conveniently and stably clamped by the device; and meanwhile, the workpiece can be prevented from falling off during machining.

Description

Technical Field

[0001] The present invention relates to the technical field of ring groove processing machine tools, and particularly to a machine tool with a double working station for processing ring grooves of hollow automotive half shafts. Background Art

[0002] Automotive half shafts play an important role in the use of vehicles. The differential distributes power to the left and right half shafts, and the half shafts then transmit torque to the drive wheels to make the wheels rotate and thus drive the vehicle forward. When the vehicle turns, the differential automatically adjusts the rotational speeds of the left and right wheels according to the radius of the curve and the driving speed to ensure stable steering of the vehicle, and the half shaft continuously and stably transmits power during this process. A ring groove is provided at the end of the half shaft to facilitate the installation of a snap ring.

[0003] However, in the prior art, when processing the ring grooves of hollow half shafts, ordinary fixtures are often used to clamp the workpieces. Due to the different designs of the workpieces, there is often a phenomenon that the inner diameter and the outer diameter are different, and thus it is necessary to replace the fixture to clamp the workpiece, and it is impossible to use one fixture to clamp multiple workpieces, resulting in extremely poor practicability. Summary of the Invention

[0004] The present invention provides a machine tool with a double working station for processing ring grooves of hollow automotive half shafts to solve the situation proposed in the background art.

[0005] To achieve the above invention purpose, the present invention provides the following technical solutions: A magnetic false eyelash ornament, comprising: a mounting frame, a tapered column, a bearing, and a double-station rolling mechanism. Two bearings are connected to the mounting frame, and a tapered column is rotatably connected to each bearing. The tips of the two tapered columns face each other. A double-station rolling mechanism is connected to the mounting frame, and the output end of the double-station rolling mechanism faces between the two tapered columns.

[0006] Preferably, the double-station rolling mechanism comprises: a rolling wheel, a rotating shaft, and a power assembly. The two rolling wheels are both arranged above the tapered columns, the rolling wheel is arranged between the two tapered columns, the rolling wheel is connected to the rotating shaft, and the rotating shaft is connected to the output end of the power assembly.

[0007] Preferably, the power assembly comprises: a bevel gear, a second bevel gear, and a motor. The rotating shaft is connected to the bevel gear, the bevel gear is meshed with the second bevel gear, and the second bevel gear is installed on the output end of the motor.

[0008] Preferably, the motor is connected to a lifting frame. One side of the lifting frame is slidably connected to a guide rod, the bottom of the guide rod is connected to the top of the mounting frame, a screw rod is rotatably connected to the lifting frame, the threaded part of the screw rod is threadedly connected to the other side of the lifting frame, the bottom of the screw rod is connected to the output end of a second motor, and the second motor is connected to the mounting frame.

[0009] Preferably, the bottom of each of the bearings is connected to the top of a lifting rod. The lifting rod is longitudinally slidably connected to a slider, and the slider is transversely slidably connected to a slide rail. The slide rail is connected to a mounting bracket. The bottom of the lifting rod below the slider is hinged to the top of a connecting rod.

[0010] Preferably, the bottom of the connecting rod is hinged to one side of a mounting seat. The top of the mounting seat is connected to the bottoms of two mounting plates. The top of each mounting plate is rotatably connected to a second rotating shaft, and each second rotating shaft is connected to a guide wheel.

[0011] Preferably, an annular groove is provided on the side wall of the guide wheel.

[0012] Preferably, one end of the second rotating shaft is connected to a belt pulley. The belt pulley is drivingly connected to a second belt pulley through a belt. The second belt pulley is connected to the output end of a third motor, and the third motor is connected to the mounting seat.

[0013] Preferably, a third belt pulley is connected to the second rotating shaft connected to the belt pulley at intervals. The third belt pulley is drivingly connected to a fourth belt pulley through a second belt. The fourth belt pulley is connected to one end of a third rotating shaft. The third rotating shaft is rotatably connected to the mounting plate, and the fourth belt pulley is arranged below the belt pulley.

[0014] Preferably, the other end of the third rotating shaft is connected to a sprocket. The side of the sprocket is connected to the bottom end of a chain. The chain is drivingly connected to the sprocket. The top end of the chain is connected to a fixed rod of the mounting bracket, and the chain is arranged between the bevel gear and the guide rod.

[0015] The beneficial effects of the present invention are as follows:

[0016] In the solution of the present invention:

[0017] By providing that the inner wall of the end of the conical column is in contact and cooperation with the conical side wall of the conical column, it is convenient for the device to stably clamp hollow half shafts with different inner diameters, and at the same time, it can prevent the workpiece from falling off during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 is a schematic diagram of the connection relationship between the guide rod and the lifting frame of the present invention;

[0020] Figure 3 is a cross-sectional view of the conical column of the present invention;

[0021] Figure 4 is a schematic diagram of the connection relationship between the mounting seat and the mounting plate of the present invention;

[0022] Figure 5 is a cross-sectional view of the mounting seat of the present invention;

[0023] Figure 6 Schematic diagram of the connection relationship among the second rotating shaft, the pulley and the third pulley of the present invention;

[0024] Figure 7 Schematic diagram of the connection relationship between the sprocket and the chain of the present invention;

[0025] Figure 8 Schematic diagram of the connection relationship between the lifting frame and the pull rod of the present invention;

[0026] Figure 9 Schematic diagram of the connection relationship between the rack and the push spring of the present invention.

[0027] Wherein: mounting frame 1, tapered column 2, bearing 3, double-station rolling mechanism 4, rolling wheel 5, rotating shaft 6, bevel gear 7, second bevel gear 8, motor 9, lifting frame 10, guide rod 11, screw rod 12, second motor 13, lifting rod 14, slider 15, slide rail 16, connecting rod 17, mounting seat 18, mounting plate 19, guide wheel 20, second rotating shaft 21, pulley 22, belt 23, second pulley 24, third motor 25, third pulley 26, second belt 27, fourth pulley 28, third rotating shaft 29, sprocket 30, chain 31, fixed rod 32, pull rod 33, push block 34, chamfer 35, rack 36, second guide rod 37, push spring 38, second rack 39. Specific embodiments

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] Embodiment 1: Refer to Figures 1-9 , a machine tool for processing the rolling ring grooves of a hollow automotive half shaft with a double station, comprising: a mounting frame 1, a tapered column 2, a bearing 3 and a double-station rolling mechanism 4. Two bearings 3 are connected to the mounting frame 1, and a tapered column 2 is rotatably connected to each bearing 3. The tips of the two tapered columns 2 face each other. A double-station rolling mechanism 4 is connected to the mounting frame 1, and the output end of the double-station rolling mechanism 4 faces between the two tapered columns 2.

[0030] The principle and beneficial effects of the above solution are:

[0031] During processing, the inner walls of both ends of the hollow automotive half shaft are respectively in contact and cooperation with the tapered side walls of a tapered column 2. Subsequently, the double-station rolling mechanism 4 is started to process the rolling ring grooves at both ends of the hollow automotive half shaft (hereinafter collectively referred to as the hollow half shaft). During the process of processing the rolling ring grooves, driven by the double-station rolling mechanism 4, the hollow half shaft is driven by it and rotates. Synchronously, the tapered column 2 rotates in the bearing 3 on the mounting frame 1 until the processing of the rolling ring grooves is completed;

[0032] By setting the inner wall of the end of the conical column 2 to be in contact and fit with the conical side wall of the conical column 2, it is convenient for the device to stably clamp the hollow half shafts with different inner diameters, and at the same time, it can prevent the workpiece from falling off during processing.

[0033] Embodiment Two: Refer to Figures 1-9 , the double-station rolling mechanism 4 includes: rolling wheels 5, a rotating shaft 6 and a power assembly. The two rolling wheels 5 are both arranged above the conical column 2. The rolling wheels 5 are arranged between the two conical columns 2. The rolling wheels 5 are connected to the rotating shaft 6, and the rotating shaft 6 is connected to the output end of the power assembly.

[0034] The principle and beneficial effects of the above solution are:

[0035] To ensure that the rolling ring grooves at both ends of the hollow half shaft are processed synchronously. Therefore, after the processing starts, the power assembly is set to drive the rotating shaft 6 to move downward, and then drive the two rolling wheels 5 to move downward synchronously. Subsequently, the output end of the power assembly drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the rolling wheels 5 to rotate, thereby achieving the purpose of synchronously processing the two rolling ring grooves.

[0036] Embodiment Three: Refer to Figures 1-9 , the power assembly includes: bevel gear 7, bevel gear two 8 and motor 9. The rotating shaft 6 is connected to the bevel gear 7, the bevel gear 7 is meshed and connected to the bevel gear two 8, and the bevel gear two 8 is installed on the output end of the motor 9.

[0037] The motor 9 is connected to the lifting frame 10. One side of the lifting frame 10 is slidably connected to the guide rod 11. The bottom of the guide rod 11 is connected to the top of the mounting frame 1. A screw rod 12 is rotatably connected to the lifting frame 10. The threaded part of the screw rod 12 is threadedly connected to the other side of the lifting frame 10. The bottom of the screw rod 12 is connected to the output end of the motor two 13, and the motor two 13 is connected to the mounting frame 1.

[0038] The principle and beneficial effects of the above solution are:

[0039] After the two rolling wheels 5 come into contact with the side wall of the hollow half shaft, start the motor 9. Its output end drives the bevel gear two 8 to rotate, and the bevel gear 7 meshed and connected to the bevel gear two 8 rotates. The rotation of the bevel gear 7 drives the rotation of the rotating shaft 6, and then drives the rolling wheels 5 to rotate;

[0040] After the rolling wheels 5 rotate, the height of the lifting frame 10 can be adjusted based on different design indicators. When it is necessary to increase the height of the lifting frame 10, start the motor two 13. Its output end drives the screw rod 12 to rotate forward. With the cooperation of the guide rod 11, the height of the lifting frame 10 relative to the mounting frame 1 rises. Then the pressure exerted by the rolling wheels 5 on the hollow half shaft is small, and the depth of the rolled rolling ring groove is small;

[0041] When it is necessary to lower the height of the lifting frame 10, the second motor 13 is started, and the output end thereof drives the screw rod 12 to reverse. With the cooperation of the guide rod 11, the height of the lifting frame 10 relative to the mounting frame 1 is reduced. Furthermore, the pressure exerted by the rolling wheel 5 on the hollow half shaft increases, and the depth of the rolled ring groove increases, further reducing the difficulty of controlling the rolling depth of the ring groove and reducing the complexity of the device; since the threaded portion of the screw rod 12 is threadedly connected to the lifting frame 10, the device has extremely strong stability during rolling, thereby ensuring that there is no error during the rolling of the ring groove.

[0042] Embodiment 4: Refer to Figures 1-9 , the bottom of each bearing 3 is connected to the top of a lifting rod 14. The lifting rod 14 is longitudinally slidably connected to the slider 15. The slider 15 is transversely slidably connected to the slide rail 16. The slide rail 16 is connected to the mounting frame 1. The bottom of the lifting rod 14 below the slider 15 is hinged to the top of the connecting rod 17.

[0043] The bottom of the connecting rod 17 is hinged to one side of the mounting seat 18. The top of the mounting seat 18 is connected to the bottoms of two mounting plates 19. The top of each mounting plate 19 is rotatably connected to a second rotating shaft 21. Each second rotating shaft 21 is connected to a guide wheel 20.

[0044] The principle and beneficial effects of the above solution are as follows:

[0045] When clamping the hollow half shaft, the two sliders 15 approach each other, and then respectively exert forces towards the middle of the mounting frame 1 on a conical column 2 to prevent the hollow half shaft between the two conical columns 2 from falling off. The setting of the mounting seat 18 can further increase the stability during the clamping of the hollow half shaft. Since the mounting seat 18 drives the connecting rod 17 to move downward by its gravity, the two conical columns 2 are always kept applying external forces towards the middle of the hollow half shaft;

[0046] When it is necessary to remove the processed hollow half shaft, the mounting seat 18 moves upward, and then the included angle between its top and the top of the connecting rod 17 increases. After the lifting rod 14 drives the bearing 3 to move downward by a certain distance, synchronously, the lifting rod 14 drives the slider 15 to move on the slide rail 16 in a direction away from the middle of the mounting frame 1. The two conical columns 2 respectively disengage from one end of the hollow half shaft, thereby realizing the removal of the hollow half shaft. The rising mounting seat 18 drives the mounting plate 19 to move upward, and then drives the guide wheel 20 to move upward through the second rotating shaft 21 to carry the just-unclamped hollow half shaft to prevent the hollow half shaft from falling off when being removed, protecting the device and the on-site workers;

[0047] When replacing a new hollow half shaft, first place the hollow half shaft on the two guide wheels 20, move the mounting seat 18 downward, the mounting seat 18 drives the mounting plate 19 downward and finally drives the guide wheel 20 downward, synchronously the angle between the top of the mounting seat 18 and the top of the connecting rod 17 decreases, the lifting rod 14 drives the bearing 3 to move upward for a distance, the axis of the hollow half shaft is concentric with the axis of the tapered column 2, synchronously the lifting rod 14 drives the slider 15 to move on the slide rail 16 toward the middle of the mounting frame 1, the two tapered columns 2 respectively contact the inner walls of the ends of the hollow half shaft, thereby achieving the clamping of the hollow half shaft;

[0048] The device is provided with a lifting rod 14 and a sliding block 15 in sliding connection, and the sliding block 15 and a sliding rail 16 in sliding connection, so that the convenience of removing and clamping the hollow half shaft is improved;

[0049] Since the hollow half shaft is driven by the lifting rod 14 to drop a certain distance in the process of removal until the hollow half shaft contacts and cooperates with the rising guide wheel 20, the risk of the hollow half shaft just released from the clamping falling can be avoided, and the continuity of the device during operation is improved, thereby improving the working efficiency of the device;

[0050] During the process of clamping the hollow half-axle, it can be placed on the guide wheel 20 first, and the mounting seat 18 can be lowered in height and cooperated with the two tapered columns 2 that are rising in height and approaching each other to complete the clamping of the hollow half-axle, thereby further improving the ability of the device to work repeatedly and continuously, making full use of the linkage relationship between the components within the mechanism, and realizing a complex working process, which not only greatly reduces the difficulty of manufacturing the device, but also increases the reliability and stability of the device, and further reduces the difficulty of overhauling and maintaining the device.

[0051] Example 5: Reference Figures 1-9 The side wall of the guide wheel 20 is provided with an annular groove.

[0052] The principles and beneficial effects of the above scheme are:

[0053] When the hollow semi-axle is loaded, the annular groove formed on the side wall of the guide wheel 20 can increase the stability of the loaded semi-hollow shaft, thereby facilitating the stable clamping or removal of the hollow semi-axle from the device.

[0054] Example 6: Reference Figures 1-9 One end of the rotating shaft 21 is connected with a pulley 22, the pulley 22 is connected to the pulley 24 through a belt 23, the pulley 24 is connected to the output end of the motor 3 25, and the motor 3 25 is connected to the mounting seat 18.

[0055] The principles and beneficial effects of the above scheme are:

[0056] When the mounting seat 18 makes the height of the guide wheel 20 higher than the top of the mounting frame 1, start the third motor 25. The forward rotation of the output end of the third motor 25 drives the second pulley 24 to rotate forward. The second pulley 24 drives the pulley 22 and the connected second rotating shaft 21 to rotate forward through the belt 23, and finally drives the guide wheel 20 to rotate forward. At this time, the hollow half shaft can be placed on the rotating guide wheel 20 outside the mounting frame 1, and the unprocessed hollow half shaft can be moved to the middle of the device through its rotation, reducing the physical strength invested by the operator during processing;

[0057] The reverse rotation of the output end of the third motor 25 drives the second pulley 24 to rotate in reverse. The second pulley 24 drives the pulley 22 and the connected second rotating shaft 21 to rotate in reverse through the belt 23, and finally drives the guide wheel 20 to rotate in reverse. At this time, the rolled hollow half shaft can be moved to the outside of the device through the rotation of the guide wheel 20; the cumbersome degree of manual operation is reduced, and at the same time, the safety of the operator at the work site is improved.

[0058] Embodiment Seven: Refer to Figures 1-9 , a third pulley 26 is connected at intervals on the second rotating shaft 21 connected with the pulley 22. The third pulley 26 is in transmission connection with the fourth pulley 28 through the second belt 27. The fourth pulley 28 is connected to the end of the third rotating shaft 29. The third rotating shaft 29 is rotatably connected with the mounting plate 19, and the fourth pulley 28 is arranged below the pulley 22.

[0059] The other end of the third rotating shaft 29 is connected with a sprocket 30. The side of the sprocket 30 is connected with the bottom end of the chain 31. The chain 31 is in transmission connection with the sprocket 30. The top end of the chain 31 is connected to the fixed rod 32 of the mounting frame 1. The chain 31 is arranged between the bevel gear 7 and the guide rod 11.

[0060] The principle and beneficial effects of the above solution are as follows:

[0061] Since the chain 31 is arranged between the bevel gear 7 and the guide rod 11, and the top end of the chain 31 is connected to the fixed rod 32 of the mounting frame 1, when the guide wheel 20 rotates forward, the third pulley 26 rotates forward synchronously. The third pulley 26 drives the fourth pulley 28 to rotate forward through the second belt 27. The third rotating shaft 29 connected to the fourth pulley 28 rotates forward, and the length of the chain 31 wound around the sprocket 30 gradually decreases. Furthermore, the height of the mounting seat 18 decreases. Therefore, it can be ensured that after the hollow half shaft is input into the device, its height can be automatically reduced to facilitate the clamping of the conical column 2;

[0062] When the guide wheel 20 rotates in reverse, the third pulley 26 rotates in reverse synchronously. The third pulley 26 drives the fourth pulley 28 to rotate in reverse through the second belt 27. The third rotating shaft 29 connected to the fourth pulley 28 rotates in reverse, and the length of the chain 31 wound around the sprocket 30 gradually increases. Furthermore, the height of the mounting seat 18 rises. Therefore, it can be ensured that when the hollow half shaft is output from the device, its height can be automatically adjusted to rise, so as to prevent the output hollow half shaft from colliding with the conical column 2.

[0063] Example VIII: Refer to Figures 1-9 Figures 1-9 , the top of the pull rod 33 is connected to the lifting frame 10, the bottom end of the pull rod 33 is connected to the top of the push block 34, the push block 34 is slidably matched with the slot formed through the mounting frame 1, a chamfer 35 is provided on the top of the push block 34, the chamfer 35 faces the bottom of the rack 36, the side of the rack 36 is slidably connected to the mounting frame 1 through the guide rod II 37, the side of the rack 36 is connected to the mounting frame 1 through the push spring 38, the side of one slider 15 is connected to one side of the rack II 39, and the rack 36 is inserted and matched with the rack II 39.

[0064] The principle and beneficial effects of the above solution are as follows:

[0065] When the device rolls the hollow half shaft, under the sliding fit of the guide rod II 37 and the mounting frame 1, the push spring 38 pushes the rack 36 to be inserted and matched with the rack II 39 mounted on one slider 15 to horizontally fix the slider 15, thereby preventing the lifting rod 14, the connecting rod 17 and the mounting seat 18 from moving, preventing the height of the hollow half shaft from rising or falling during rolling, and at the same time avoiding vibration caused by unstable fixation of the hollow half shaft during rolling, so as to ensure that the processing parameters of the rolling ring groove do not go wrong;

[0066] After the processing of the hollow half shaft is completed, the upward movement of the lifting frame 10 drives the upward movement of the pull rod 33, the push block 34 disengages from the slot of the mounting frame 1, the chamfer 35 thereon drives the rack 36 to move, and then the push block 34 keeps in contact with the rack 36 and then disengages from the insertion and matching with the rack II 39. At the same time, the push spring 38 is compressed and the slider 15 is unlocked, so that the slider 15 can be easily moved in a direction away from the center of the mounting frame 1 to release the rolled hollow half shaft;

[0067] When the unprocessed hollow half shaft is put into the device, keep the push block 34 at the position unlocked last time, that is, keep the rack 36 and the rack II 39 not inserted with each other. After the unprocessed hollow half shaft is input into the device, after the lifting frame 10 is moved downward, the chamfer 35 on the push block 34 ends the contact with the rack 36. Under the elastic force of the reset of the push spring 38 and the sliding fit of the guide rod II 37 and the mounting frame 1, the rack 36 and the rack II 39 are inserted again to lock the slider 15, preventing the mechanism from jamming when the hollow half shaft is input;

[0068] Since the slot is formed through the mounting frame 1, when a greater rolling pressure is required for rolling, the height of the lifting frame 10 drops more. At this time, the slot can prevent the phenomenon that the lifting frame 10 cannot drop.

[0069] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described herein.

Claims

1. A double-station machine tool for processing hollow automobile half-axle rolling ring grooves, characterized in that: include: A mounting frame (1), a conical column (2), a bearing (3) and a double-station rolling mechanism (4); the mounting frame (1) is connected to two bearings (3); each bearing (3) is rotatably connected to a conical column (2); the tips of the two conical columns (2) are arranged facing each other; the mounting frame (1) is connected to a double-station rolling mechanism (4); the output end of the double-station rolling mechanism (4) is arranged toward between the two conical columns (2).

2. The double-station machine tool for processing hollow automobile half-axle rolling ring grooves according to claim 1 is characterized in that: The double-station rolling mechanism (4) comprises: a rolling wheel (5), a rotating shaft (6) and a power assembly, wherein the two rolling wheels (5) are both arranged above the conical column (2), the rolling wheel (5) is arranged between the two conical columns (2), the rolling wheel (5) is connected to the rotating shaft (6), and the rotating shaft (6) is connected to the output end of the power assembly.

3. The double-station machine tool for processing hollow automobile half-axle rolling ring grooves according to claim 2 is characterized in that: The power assembly comprises: a bevel gear (7), a second bevel gear (8) and a motor (9); the rotating shaft (6) is connected to the bevel gear (7); the bevel gear (7) is meshedly connected to the second bevel gear (8); and the second bevel gear (8) is mounted on the output end of the motor (9).

4. The double-station machine tool for processing hollow automobile half-axle rolling ring grooves according to claim 3 is characterized in that: The motor (9) is connected to the lifting frame (10), one side of the lifting frame (10) is slidably connected to the guide rod (11), the bottom of the guide rod (11) is connected to the top of the mounting frame (1), a screw rod (12) is rotatably connected to the lifting frame (10), the threaded portion of the screw rod (12) is threadedly connected to the other side of the lifting frame (10), the bottom of the screw rod (12) is connected to the output end of the second motor (13), and the second motor (13) is connected to the mounting frame (1).

5. The double-station machine tool for processing hollow automobile half-axle rolling ring grooves according to claim 4 is characterized in that: The bottom of each bearing (3) is connected to the top of a lifting rod (14), the lifting rod (14) is connected to the slider (15) in a longitudinal sliding manner, the slider (15) is connected to the slide rail (16) in a transverse sliding manner, the slide rail (16) is connected to the mounting frame (1), and the bottom of the lifting rod (14) below the slider (15) is hinged to the top of the connecting rod (17).

6. The double-station machine tool for processing hollow automobile half-axle rolling ring grooves according to claim 5 is characterized in that: The bottom of the connecting rod (17) is hinged to one side of the mounting seat (18), and the top of the mounting seat (18) is connected to the bottoms of two mounting plates (19). The top of each mounting plate (19) is rotatably connected to a second rotating shaft (21), and each second rotating shaft (21) is connected to a guide wheel (20).

7. The double-station machine tool for machining hollow automobile half-axle rolling ring grooves according to claim 6 is characterized in that: The side wall of the guide wheel (20) is provided with an annular groove.

8. The double-station machine tool for processing hollow automobile half-axle rolling ring grooves according to claim 6 is characterized in that: The end of the second rotating shaft (21) is connected to a pulley (22), the pulley (22) is connected to the second pulley (24) through a belt (23), the second pulley (24) is connected to the output end of the third motor (25), and the third motor (25) is connected to the mounting seat (18).

9. The double-station machine tool for processing hollow automobile half-axle rolling ring grooves according to claim 8 is characterized in that: A pulley three (26) is connected to the rotating shaft two (21) connected to the pulley (22) at intervals, the pulley three (26) is connected to the pulley four (28) through the belt two (27), the pulley four (28) is connected to the end of the rotating shaft three (29), the rotating shaft three (29) is rotatably connected to the mounting plate (19), and the pulley four (28) is arranged below the pulley (22).

10. The double-station machine tool for machining hollow automobile half-axle rolling ring grooves according to claim 9, characterized in that: The other end of the rotating shaft (29) is connected to a sprocket (30), the side of the sprocket (30) is connected to the bottom end of a chain (31), the chain (31) is transmission-connected to the sprocket (30), the top end of the chain (31) is connected to a fixed rod (32) of the mounting frame (1), and the chain (31) is arranged between the bevel gear (7) and the guide rod (11).

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