Arc-shaped tooth groove machining device and method for high-speed rail coupler

Abstract

The machining device comprises a gear hobbing machine base, a gear hobbing tool rest is installed on the gear hobbing machine base, a bearing table is installed on the gear hobbing machine base, a butt-clamping sliding seat sliding groove is formed in the bearing table, the butt-clamping sliding seat sliding groove is arranged in a cross shape, and the butt-clamping sliding seat sliding groove is arranged on the bearing table. A cavity is formed in the middle of the bearing table, the cavity is communicated with the butt clamp sliding seat sliding groove, a first linkage shaft and a second linkage shaft are arranged in the butt clamp sliding seat sliding groove, and the first linkage shaft and the second linkage shaft are rotationally connected to the inner walls of the two opposite sides in the butt clamp sliding seat sliding groove respectively; by designing the arc-shaped grabbing block, the shape of the grabbing block can be adjusted according to the size of a workpiece, by arranging the inserting rod and the multi-position inserting hole, inserting connection is conducted, the inserting connection position is adjusted according to different hole positions of the multi-position inserting hole, and then adjustment of different clamping ranges is achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical manufacturing, in particular to an arc-shaped tooth groove machining device and method for high-speed rail couplings. BACKGROUND

[0002] The drum gear coupling is an important component in machinery. It is a small torque transmission coupling with strong error absorption capacity and excellent durability. It is the most common component for connecting two transmission shafts in medium and heavy machinery. The drum coupling can efficiently transmit power. The unique drum gear design compensates for axial, radial and angular displacement, ensuring that the two shafts always work in harmony. It has high torque transmission and strong impact resistance, making it suitable for heavy-duty equipment. High-speed rail couplings often use drum gear couplings, which are key components connecting traction motors and gearboxes. They are responsible for transmitting torque and compensating for displacement caused by installation deviation of the bogie, ensuring stability and reliability at high speeds. They efficiently transmit power between the traction motor and the gearbox, driving the wheels to run.

[0003] The drum gear coupling has a basic symmetrical structure. The teeth on the outer tooth shaft sleeve are drum-shaped, with a gradually decreasing thickness from the center to both sides. The corresponding teeth on the inner tooth ring are straight teeth. Since the tooth top and tooth surface of the outer tooth shaft sleeve are arc-shaped, the entire coupling is double-knotted and flexible, which can adapt to a large angular deviation between the two shafts. The outer teeth of the drum gear are spherical, with the spherical center on the gear axis. The tooth side clearance is larger than that of general gears. The outer teeth are processed by hobbing. The tooth groove is opened on the arc-shaped spherical surface. During the processing of the arc-shaped spherical surface, the hobbing cutter needs to ensure that the arc-shaped spherical surface is in the middle of the loading table. Usually, a three-jaw chuck is used to fix the workpiece, and then the outer spherical surface is processed. Due to the different sizes of drum gear couplings and the connection of special high-speed rail equipment, non-standard gears are often used. The size of the workpiece varies, and the locking range of the three-jaw chuck is limited. To increase the clamping range of the three-jaw chuck, multiple three-jaw chucks of different sizes are stacked to provide clamping function. This design increases the horizontal height of the workpiece on the loading table, making it difficult to better adapt to the cutting height of the hobbing cutter. On the other hand, using multiple three-jaw chucks reduces the stability of the workpiece during clamping. If one of the three-jaw chucks comes loose, the hobbing cutter may not be able to cut according to the center of the workpiece during cutting. The produced drum gear coupling may be eccentric and cannot be used. When the three-jaw chuck is fixed, the clamping pieces on the three-jaw chuck move simultaneously. Due to the heavy weight of the workpiece, it is usually lifted and locked to be clamped with the three-jaw chuck. If the three-jaw chuck is clamped during lifting, the workpiece cannot be stably placed on the loading table. If the workpiece is directly lifted onto the loading table, it is difficult to calibrate the center of the workpiece with the clamping pieces of the three-jaw chuck.

[0004] Therefore, the application provides an arc-shaped tooth groove processing device and method for high-speed rail couplings to solve the above problems. SUMMARY

[0005] To solve the above technical problems, the application provides an arc-shaped tooth groove processing device and method for high-speed rail couplings to solve the problem that the horizontal height of the workpiece on the bearing table is increased in the prior art, and the cutting height of the gear hobbing tool holder cannot be better adapted.

[0006] An arc-shaped tooth groove processing device for high-speed rail couplings comprises a gear hobbing machine base, a gear hobbing tool holder mounted on the gear hobbing machine base, and a bearing table mounted on the gear hobbing machine base. A pair of clamping sliding seat sliding grooves are provided on the bearing table and arranged in a cross shape. A cavity is provided in the middle of the bearing table and communicates with the pair of clamping sliding seat sliding grooves. A linkage shaft one and a linkage shaft two are arranged in the pair of clamping sliding seat sliding grooves. The linkage shaft one and the linkage shaft two are respectively rotatably connected to the inner walls on the opposite sides in the pair of clamping sliding seat sliding grooves. The linkage shaft one and the linkage shaft two are arranged in an up-down overlapping manner. A pair of clamping sliding seat ones are slidably connected to the two ends of the linkage shaft one. A pair of clamping sliding seat twos are respectively slidably connected to the two ends of the linkage shaft two. The pair of clamping sliding seat ones and the pair of clamping sliding seat twos are respectively slidably arranged in the pair of clamping sliding seat sliding grooves. Claws are respectively connected to the pair of clamping sliding seat ones and the pair of clamping sliding seat twos. The claws comprise grabbing blocks. Grabbing block grooves are provided in the grabbing blocks. Pressure pushing blocks are slidably arranged in the grabbing block grooves. Ball seats are provided on one side of the pressure pushing blocks. Push plates are provided on the other side of the pressure pushing blocks. Hydraulic pushing rods are mounted on the side of the grabbing blocks away from the ball seats. The piston rods of the hydraulic pushing rods are movably penetrated through the grabbing blocks and fixedly connected to the push plates. A direct-current brushless motor and a servo motor are mounted on the bearing table.

[0007] Further, the linkage shaft one penetrates the pair of clamping sliding seat ones and is threadedly connected to the pair of clamping sliding seat ones. Linkage gears are fixedly sleeved on the surface of the linkage shaft one. Drive gears are meshingly connected to the bottom of the linkage gears. The drive gears and the linkage gears are arranged in a one-to-one correspondence.

[0008] Further, a gear frame is mounted in the cavity. The linkage shaft two movably penetrates the opposite two ends of the gear frame. Bevel gears one are mounted on the two sides of the gear frame that are not penetrated. Bevel gears two are arranged between the bevel gears one. The bevel gears one and the bevel gears two are in meshing engagement. The bevel gears one are rotatably penetrated through the gear frame through rotating shafts. The rotating shafts are fixedly connected to the drive gears at one end.

[0009] Further, the bevel gear two rotationally connects to the surface of the gear frame, a tapered slot is formed in the middle of the bevel gear two, the linkage shaft two penetrates the middle of the tapered slot, the middle of the linkage shaft two is provided with a spline strip, the middle of the linkage shaft two is slidingly connected with a brake tapered table, the surface of the brake tapered table is rotatably sleeved with a bearing disc, the bearing disc and the inner wall of one side of the gear frame are connected through a miniature hydraulic rod, a plurality of brake pads are installed on the arc surface of the brake tapered table, and the brake pads are arranged close to the tapered slot.

[0010] Further, the output shaft of the servo motor movably penetrates the bearing table and is connected with the linkage shaft two through a shaft coupling, and the output shaft of the brushless DC motor movably penetrates the bearing table and is connected with the linkage shaft one through a shaft coupling.

[0011] Further, a plurality of multi-position jack plugs are formed in the surfaces of the pair of clamping sliding seats one and two, respectively, the bottom of the grabbing block is provided with an insertion rod, and the size of the insertion rod matches the size of the multi-position jack plug.

[0012] Further, one side surface of the ball seat penetrates the grabbing block, a ball is rotatably connected in the ball seat, a pressure sensor is installed on the side surface of the pressure pushing block away from the ball seat, and the push plate is in contact with the pressure sensor.

[0013] Further, the grabbing block is slidingly arranged on the surface of the bearing table, the grabbing block is of an arc structure, grabbing block grooves are arranged at two ends of the grabbing block respectively, and the hydraulic pushing rods are installed on the side surfaces of the grabbing block away from each other.

[0014] A machining method of an arc-shaped tooth groove machining device of a high-speed rail coupling, comprising the following steps:

[0015] Step one: the workpiece is hoisted to the surface of the bearing table by the crown block, and then is arranged between the plurality of grabbing blocks, the workpiece first does not contact the surface of the bearing table, then the servo motor and the brushless DC motor are started respectively, the pair of clamping sliding seats one and two are controlled respectively, the pair of clamping sliding seats one and two drive the workpiece to be clamped on the surface of the workpiece, and the balls on the ball seat contact the surface of the workpiece at this time;

[0016] Step two: when the balls of the ball seat first contact the surface of the workpiece, the pressure sensor detects the pressure, and when the detected forces of the four pressure sensors are the same, the workpiece can be released, the workpiece is hoisted to contact the surface of the bearing table by the crown block, and is supported by the bearing table;

[0017] Step three: after the workpiece fully contacts the bearing table, the hydraulic push rod pulls the push plate to move backward, then the ball no longer supports the surface of the workpiece, the micro hydraulic rod is started, the micro hydraulic rod pushes the bearing disc to move, the brake pad contacts the conical groove, the linkage shaft two can rotate with the bevel gear two, the direct current brushless motor is powered off, the servo motor can control the linkage shaft one and the linkage shaft two at the same time, and then the clamping slide one and the clamping slide two are further slid, the ball is pushed into the grab block groove, the surface of the grab block contacts the surface of the workpiece, and the workpiece is clamped.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1、The unique clamping slide design and linkage shaft structure can realize accurate clamping and positioning of workpieces of different sizes, two groups of linkage shafts can move synchronously or independently, and the combination of the ball seat and the pressure sensor can monitor the clamping force in real time, so that the workpiece can maintain a stable state during pre-clamping, not only improving the accuracy of the arc-shaped tooth groove machining, but also significantly reducing the probability of eccentricity, thereby improving the overall quality and service life of the high-speed rail coupling.

[0020] 2、The servo motor and the direct current brushless motor are used to control the linkage shaft one and the linkage shaft two respectively, which improves the accuracy and synchronicity of the clamping action, avoids the instability problem caused by the stacking use of the traditional three-jaw chuck, and adjusts the transmission between the linkage shaft one and the linkage shaft two through the design of the micro hydraulic rod and the brake conical table.

[0021] 3、The arc-shaped grab block can adjust the shape of the grab block according to the size of the workpiece, and the plug rod and the multi-position jack are arranged, the plug rod is inserted into the multi-position jack according to the different hole positions of the multi-position jack, the position of the plug rod is adjusted, and then the adjustment of different clamping ranges is realized. DETAILED DESCRIPTION

[0022] Figure 1 is a perspective view of the present application;

[0023] Figure 2 is a perspective view of the gear hobbing machine base of the present application;

[0024] Figure 3 is a perspective view of the arc-shaped claw piece of the present application;

[0025] Figure 4 is a split view of the bearing table of the present application;

[0026] Figure 5 is a perspective view of the inside of the gear frame of the present application;

[0027] Figure 6 is a perspective view of the brake pad of the present application;

[0028] Figure 7 is a perspective view of the driving gear of the present application;

[0029] Figure 8 is a perspective view of the claw piece of the present application Figure 1 ;

[0030] Figure 9 is a perspective view of the claw piece of the present application Figure 2 .

[0031] in the figure:

[0032] 1, hobbing machine base; 2, hobbing cutter holder; 3, bearing table; 4, claw piece; 401, grab block; 402, grab block groove; 403, ball seat; 404, pressure push block; 405, push plate; 406, hydraulic push rod; 407, plug rod; 5, clamping slide one; 6, servo motor; 7, multi-position jack; 8, linkage shaft one; 9, brake piece; 10, gear holder; 11, linkage shaft two; 12, clamping slide two; 13, direct current brushless motor; 14, linkage gear; 15, driving gear; 16, clamping slide slot; 17, cavity; 18, bevel gear one; 19, miniature hydraulic rod; 20, bearing disc; 21, bevel gear two; 22, brake conical table. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0034] As Figures 1-9As shown in the figure, the present application provides an arc-shaped gear slot processing device of a high-speed rail coupling, which comprises a hobbing machine base 1, a hobbing cutter holder 2 is installed on the hobbing machine base 1, a bearing table 3 is installed on the hobbing machine base 1, a pair of clamping sliding seat sliding grooves 16 are formed on the bearing table 3, and the pair of clamping sliding seat sliding grooves 16 are arranged in a cross shape, a cavity 17 is formed in the middle of the bearing table 3, the cavity 17 is communicated with the pair of clamping sliding seat sliding grooves 16, a linkage shaft one 8 and a linkage shaft two 11 are arranged in the pair of clamping sliding seat sliding grooves 16, the linkage shaft one 8 and the linkage shaft two 11 are respectively rotatably connected to the opposite two inner walls in the pair of clamping sliding seat sliding grooves 16, the linkage shaft one 8 and the linkage shaft two 11 are arranged in an up-down overlapping manner, a pair of clamping sliding seat one 5 is slidably connected to the two ends of the linkage shaft one 8, a pair of clamping sliding seat two 12 is respectively slidably connected to the two ends of the linkage shaft two 11, the pair of clamping sliding seat one 5 and the pair of clamping sliding seat two 12 are respectively slidably arranged in the pair of clamping sliding seat sliding grooves 16, a claw piece 4 is respectively connected to the pair of clamping sliding seat one 5 and the pair of clamping sliding seat two 12, the claw piece 4 comprises a grabbing block 401, a grabbing block groove 402 is formed in the grabbing block 401, a pressure pushing block 404 is slidably arranged in the grabbing block groove 402, a ball seat 403 is arranged on one side of the pressure pushing block 404, a pushing plate 405 is arranged on the other side of the pressure pushing block 404, a hydraulic push rod 406 is installed on the side of the grabbing block 401 away from the ball seat 403, the piston rod of the hydraulic push rod 406 is movably penetrated through the grabbing block 401 and fixedly connected to the pushing plate 405, a direct-current brushless motor 13 and a servo motor 6 are installed on the bearing table 3.

[0035] As an embodiment of the present application, the linkage shaft one 8 penetrates through the pair of clamping sliding seat one 5 and is threadedly connected with the pair of clamping sliding seat one 5, a linkage gear 14 is fixedly sleeved on the surface of the linkage shaft one 8, a driving gear 15 is meshingly connected to the bottom of the linkage gear 14, and the driving gear 15 and the linkage gear 14 are arranged in a one-to-one correspondence.

[0036] As shown in the figure, Figure 7 the driving gear 15 can drive the linkage gear 14 to rotate, and the two simultaneously transmit power.

[0037] As an embodiment of the present application, a gear frame 10 is installed in the cavity 17, the linkage shaft two 11 movably penetrates through the opposite two ends of the gear frame 10, a bevel gear one 18 is installed on the two inner walls of the gear frame 10 which are not penetrated, a bevel gear two 21 is arranged between the bevel gear one 18, the bevel gear one 18 and the bevel gear two 21 are meshed, the bevel gear one 18 is rotatably penetrated through the gear frame 10 through a rotating shaft, and one end of the rotating shaft penetrating through the gear frame 10 is fixedly connected to the driving gear 15.

[0038] As one of the embodiments of the present application, the bevel gear two 21 is rotationally connected to the surface of the gear frame 10, a tapered groove is formed in the middle of the bevel gear two 21, the linkage shaft two 11 penetrates the middle of the tapered groove, a spline strip is installed in the middle of the linkage shaft two 11, the brake tapered table 22 is slidingly connected to the middle of the linkage shaft two 11, the bearing disc 20 is rotationally sleeved on the surface of the brake tapered table 22, the brake tapered table 22 is connected between the bearing disc 20 and the inner wall of one side of the gear frame 10 through the micro hydraulic rod 19, and a plurality of brake shoes 9 are installed on the curved surface of the brake tapered table 22, and the brake shoes 9 are arranged close to the tapered groove.

[0039] As Figures 5-6 , the brake tapered table 22 is pushed on the linkage shaft two 11 to slide forward and backward by the micro hydraulic rod 19, when the brake tapered table 22 is pushed to slide by the micro hydraulic rod 19, the brake tapered table 22 drives the brake shoes 9 to be close to the tapered groove on the bevel gear two 21, then when the linkage shaft two 11 rotates, the brake tapered table 22 drives the bevel gear two 21 to rotate at the same time, thereby ensuring that the bevel gear one 18 on both sides can also rotate at the same time, and the driving gear 15 is used to drive the linkage shaft one 8 at the same time, at this time, the linkage shaft one 8 can be synchronously driven with the linkage shaft two 11, when the brake tapered table 22 is away from the tapered groove, the linkage shaft one 8 and the linkage shaft two 11 can rotate relative to each other and do not interfere with each other.

[0040] As one of the embodiments of the present application, the output shaft of the servo motor 6 is movably penetrated through the bearing table 3 and connected with the linkage shaft two 11 through a shaft coupling, and the output shaft of the direct current brushless motor 13 is movably penetrated through the bearing table 3 and connected with the linkage shaft one 8 through a shaft coupling.

[0041] As Figures 2-4 , the servo motor 6 can drive the linkage shaft two 11, and the direct current brushless motor 13 can drive the linkage shaft one 8, thereby controlling the sliding of the clamping slide, and the direct current brushless motor 13 is adopted, so that the rotation of the linkage shaft one 8 is not affected in the case of power failure.

[0042] As one of the embodiments of the present application, a plurality of multi-position jacks 7 are formed on the surfaces of the clamping slide one 5 and the clamping slide two 12 respectively, and the bottom of the grabbing block 401 is provided with a plug rod 407, and the size of the plug rod 407 matches the size of the multi-position jack 7.

[0043] As Figures 8-9 , the plug rod 407 is inserted into different positions of the multi-position jack 7, the clamping range of the grabbing block 401 can be adjusted, the size of the workpiece is adjusted, and the clamping function in multiple ranges can be realized without increasing multiple three-jaw chucks when the range is adjusted to the adaptive range.

[0044] As an embodiment of the present application, one side of the ball seat 403 penetrates the grab block 401, the ball seat 403 is rotatably connected with balls, the pressure pushing block 404 is provided with a pressure sensor on the side away from the ball seat 403, and the push plate 405 is in contact with the pressure sensor.

[0045] The hydraulic push rod 406 pushes the push plate 405 to be close to the pressure sensor. When the workpiece is pre-clamped, the balls are in contact with the surface of the workpiece, the pressure contacted by the balls is monitored in real time through the pressure sensor, and after the balls are positioned, the hoisting device is released, the workpiece is stably placed on the bearing table 3 in the established position, and the hydraulic push rod 406 is retracted to further push the grab block 401 and clamp the workpiece more stably.

[0046] As an embodiment of the present application, the grab block 401 is slidably arranged on the surface of the bearing table 3, the grab block 401 is in an arc shape, the grab block groove 402 is arranged at two ends of the grab block 401 respectively, and the hydraulic push rod 406 is arranged on the side of the grab block 401 away from each other.

[0047] The grab block 401 can be in a rectangular structure (for example, Figure 2 ), or in an arc shape (for example, Figure 3 ), and the arc-shaped structure is designed to have symmetrical ball seats at two ends, so that the contact surface with the workpiece surface is increased, and different shapes of the grab block 401 are adopted according to the size of the workpiece.

[0048] A machining method of an arc-shaped tooth groove machining device of a high-speed rail coupling, comprising the following steps:

[0049] Step one: the workpiece is hoisted to the surface of the bearing table 3 by the overhead crane, and then is close to the plurality of grab blocks 401, the workpiece is not in contact with the surface of the bearing table 3 first, then the servo motor 6 and the direct-current brushless motor 13 are started respectively, the control of the clamping slide block one 5 and the clamping slide block two 12 is realized, the clamping slide block one 5 and the clamping slide block two 12 are driven to clamp the surface of the workpiece, and the balls on the ball seat 403 are in contact with the surface of the workpiece at this time;

[0050] Step two: when the balls on the ball seat 403 first contact the surface of the workpiece, the pressure sensor detects the pressure, and when the detected forces of the four pressure sensors are the same, the workpiece is released, the overhead crane hoists the workpiece to contact the surface of the bearing table 3, and the workpiece is supported by the bearing table 3;

[0051] Step three: after the workpiece fully contacts the bearing table 3, the hydraulic push rod 406 pulls the push plate 405 to move backward, then the ball no longer supports the surface of the workpiece, the micro hydraulic rod 19 is started, the micro hydraulic rod 19 pushes the bearing disc 20 to move, the brake piece 9 contacts the conical groove, the linkage shaft two 11 can rotate with the bevel gear two 21, the direct current brushless motor 13 is powered off, the servo motor 6 can control the linkage shaft one 8 and the linkage shaft two 11 linkage at the same time, and then the pair of clamping slides one 5 and the pair of clamping slides two 12 are further slid, the ball is pushed into the grab block groove 402, the surface of the grab block 401 contacts the surface of the workpiece, and the workpiece is clamped.

[0052] The ball pre-contacts the surface of the workpiece, the positioning center of the workpiece is determined, the ball is kept in the same vertical direction with the bearing table, the ball contacts, the workpiece also has the space of up and down movement, when the overhead crane is lifted, the workpiece can also move up and down, and the retractable ball seat can further clamp the surface of the workpiece, so that the workpiece is more stable during cutting.

[0053] The embodiments of the present application are given for example and description, although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as limiting the present application, and the ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the present application.

Claims

1. A device for machining arc-shaped gear grooves of high-speed railway couplings, comprising a gear hobbing machine base (1), a gear hobbing cutter holder (2) mounted on the gear hobbing machine base (1), and a bearing platform (3) mounted on the gear hobbing machine base (1), characterized in that, The support platform (3) is provided with a clamping slide groove (16), and the clamping slide groove (16) is arranged in a "+" shape. A cavity (17) is provided in the middle of the support platform (3), and the cavity (17) is connected to the clamping slide groove (16). A linkage shaft one (8) and a linkage shaft two (11) are provided in the clamping slide groove (16). The linkage shaft one (8) and the linkage shaft two (11) are respectively rotatably connected to the inner walls of opposite sides in the clamping slide groove (16). The linkage shaft one (8) and the linkage shaft two (11) are arranged overlapping vertically. The two ends of the linkage shaft one (8) are slidably connected to the clamping slide one (5), and the two ends of the linkage shaft two (11) are respectively slidably connected to the clamping slide two (12). The clamping slide one (5) and the clamping slide two (12) are respectively slidably connected to the clamping slide two (12). The clamping slide is set in the sliding groove (16) of the clamping slide. The clamping slide one (5) and clamping slide two (12) are respectively connected to the claw (4). The claw (4) includes a gripping block (401). A gripping block groove (402) is opened in the gripping block (401). A pressure push block (404) is slidably arranged in the gripping block groove (402). A ball seat (403) is provided on one side of the pressure push block (404). A push plate (405) is provided on the other side of the pressure push block (404). A hydraulic push rod (406) is installed on the side of the gripping block (401) away from the ball seat (403). The piston rod of the hydraulic push rod (406) moves through the gripping block (401) and is fixedly connected to the push plate (405). A DC brushless motor (13) and a servo motor (6) are installed on the support platform (3).

2. The arc-shaped tooth groove processing device for high-speed rail couplings as described in claim 1, characterized in that, The first linkage shaft (8) passes through the first clamping slide (5) and is connected to the first clamping slide (5) by a thread. A linkage gear (14) is fixedly sleeved on the surface of the first linkage shaft (8). A drive gear (15) is meshed with the bottom of the linkage gear (14). The drive gear (15) and the linkage gear (14) are arranged in a one-to-one correspondence.

3. The arc-shaped tooth groove processing device for high-speed rail couplings as described in claim 2, characterized in that, A gear frame (10) is installed in the cavity (17). The second linkage shaft (11) moves through the opposite ends of the gear frame (10). A bevel gear (18) is installed on the inner walls of the two sides of the gear frame (10) that are not penetrated. A bevel gear (21) is arranged between the first bevel gear (18). The first bevel gear (18) meshes with the second bevel gear (21). The first bevel gear (18) rotates through the gear frame (10) through a rotating shaft. One end of the rotating shaft that passes through the gear frame (10) is fixedly connected to the drive gear (15).

4. The arc-shaped tooth groove processing device for high-speed rail couplings as described in claim 3, characterized in that, The second bevel gear (21) is rotatably connected to the surface of the gear carrier (10). A conical groove is provided in the middle of the second bevel gear (21). The second linkage shaft (11) passes through the middle of the conical groove. A spline is installed in the middle of the second linkage shaft (11). A brake conical platform (22) is slidably connected in the middle of the second linkage shaft (11). A bearing disc (20) is rotatably sleeved on the surface of the brake conical platform (22). The bearing disc (20) is connected to the inner wall of one side of the gear carrier (10) through a miniature hydraulic rod (19). Multiple brake pads (9) are installed on the arc surface of the brake conical platform (22). The brake pads (9) are located close to the conical groove.

5. The arc-shaped tooth groove processing device for high-speed rail couplings as described in claim 1, characterized in that, The output shaft of the servo motor (6) passes through the support platform (3) and is connected to the linkage shaft two (11) via a coupling. The output shaft of the DC brushless motor (13) passes through the support platform (3) and is connected to the linkage shaft one (8) via a coupling.

6. The arc-shaped tooth groove processing device for high-speed rail couplings as described in claim 1, characterized in that, The surfaces of the first clamping slide (5) and the second clamping slide (12) are respectively provided with multiple multi-position insertion holes (7), and the bottom of the gripper (401) is equipped with a plug rod (407), the size of the plug rod (407) is matched with the size of the multi-position insertion hole (7).

7. The arc-shaped tooth groove processing device for high-speed rail couplings as described in claim 1, characterized in that, One side of the ball bearing seat (403) passes through the gripper block (401), and a ball bearing is rotatably connected inside the ball bearing seat (403). A pressure sensor is installed on the side of the pressure push block (404) away from the ball bearing seat (403), and the push plate (405) is in contact with the pressure sensor.

8. The arc-shaped tooth groove processing device for high-speed rail couplings as described in claim 1, characterized in that, The gripper (401) is slidably disposed on the surface of the support platform (3). The gripper (401) has an arc-shaped structure, and gripper grooves (402) are respectively disposed at both ends of the gripper (401). The hydraulic push rod (406) is installed on one side of the gripper (401) that is far apart from each other.

9. A processing method for an arc-shaped tooth groove processing device for high-speed railway couplings as described in claims 1-8, characterized in that, Includes the following steps: Step 1: The workpiece is hoisted onto the surface of the support platform (3) by an overhead crane and then brought close to the multiple gripping blocks (401). The workpiece does not contact the surface of the support platform (3) at first. Then, the servo motor (6) and the DC brushless motor (13) are started respectively to control the clamping slide one (5) and clamping slide two (12) respectively, so that the clamping slide one (5) and clamping slide two (12) are driven to clamp onto the surface of the workpiece. At this time, the balls on the ball bearing seat (403) are in contact with the surface of the workpiece. Step 2: When the balls of the ball bearing seat (403) first contact the surface of the workpiece, the pressure sensor detects the pressure. When the force detected by the four pressure sensors is the same, the workpiece can be released and the overhead crane hoists the workpiece to contact the surface of the support platform (3) and is supported by the support platform (3). Step 3: After the workpiece is fully in contact with the support platform (3), the hydraulic push rod (406) pulls the push plate (405) to move backward, so the ball is no longer rigidly supported on the surface of the workpiece. Start the micro hydraulic rod (19), and the micro hydraulic rod (19) pushes the bearing plate (20) to move. The brake pad (9) contacts the conical groove, and the linkage shaft two (11) can rotate at the same frequency as the bevel gear two (21). The DC brushless motor (13) is de-energized, and the servo motor (6) can simultaneously control the linkage shaft one (8) and the linkage shaft two (11) to link together. Then the clamping slide one (5) and the clamping slide two (12) slide further, and the ball is pushed into the gripper groove (402). The surface of the gripper (401) contacts the surface of the workpiece and clamps the workpiece.

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