Hobbing device capable of achieving dual cooling and scrap removal for gear machining

Abstract

The invention relates to the technical field of gear hobbing devices, in particular to a gear hobbing device for gear machining and capable of achieving dual cooling and scrap removal, the gear hobbing device comprises a box body, a discharging device arranged in the box body, a filter screen disc arranged in the box body and a rotating part arranged in the box body, the rotating part comprises a horizontally-arranged rotating shaft, and the rotating shaft is of a hollow structure; the two ends of the rotating shaft are rotationally installed on the corresponding side walls of the box body, and U-shaped grooves are formed in the rotating shaft around the center axis of the rotating shaft at equal intervals. The rotating part further comprises a rolling cutter, the rolling cutter is installed on the rotating shaft, and a plurality of through holes are formed in the rolling cutter around the center axis of the rolling cutter at equal intervals; a first servo motor is fixed to one side of the box body, and the output end of the first servo motor is fixedly connected with the end of the rotating shaft. According to the hobbing cutter, cooling liquid can cool the hobbing cutter from the interior of the hobbing cutter, and meanwhile the cutting position can be cooled. The problem that cooling cannot be conducted from the interior of the hobbing cutter is solved.

Description

Technical Field

[0001] This invention relates to the field of gear hobbing apparatus technology, and more specifically to a gear hobbing apparatus for gear machining with dual cooling and chip removal capabilities. Background Technology

[0002] Gear hobbing machines are core equipment in the gear machining field, widely used in industries such as automotive and machinery manufacturing. They mainly consist of a gear hobbing machine, a hob, and a transmission system. During operation, the hob rotates at a specific speed and feeds axially, meshing with the workpiece to precisely cut the gear teeth using a generating method. This device boasts significant advantages in high precision and efficiency, capable of stably machining gears of various modules and numbers of teeth, meeting the precision and performance requirements of different machines for gear transmission.

[0003] Patent document CN218461074U discloses a gear hobbing device, including a frame, a clamping and rotating device mounted on the frame for clamping, fixing, and driving the rotation of a crystal clamping needle, and a gear hobbing mechanism for cutting the surface of the crystal clamping needle. A movable support is provided on the frame, and the gear hobbing mechanism is mounted on the movable support. The movable support includes a horizontal moving table, a vertical moving table, a transverse drive motor, and a longitudinal drive motor. The transverse drive motor drives the gear hobbing cutter in the gear hobbing mechanism to move radially relative to the crystal clamping needle, thereby adjusting the cutting depth of the gear hobbing cutter on the crystal clamping needle. The longitudinal drive motor drives the gear hobbing cutter in the gear hobbing mechanism to move radially relative to the crystal clamping needle, thereby adjusting the axial machining position of the gear hobbing cutter. This gear hobbing device can adjust the transverse feed and longitudinal machining surface of the gear hobbing cutter in real time during processing, making full use of the gear hobbing cutter, improving utilization efficiency, and reducing costs.

[0004] The gear hobbing apparatus described in the aforementioned patent documents cools both the workpiece and the hobbing cutter using a cooling fan. However, during the cutting process, both the cutter and the workpiece generate significant heat. Using a cooling fan to cool the hobbing cutter only removes some heat from its surface and cannot effectively cool the interior. Therefore, a gear hobbing apparatus with dual cooling and chip removal capabilities for gear machining is proposed. Summary of the Invention

[0005] To address the aforementioned problems, a gear hobbing device with dual cooling and chip removal capabilities is provided for gear machining. A first servo motor drives a rotating shaft, which in turn drives a helical rod installed inside the shaft to rotate synchronously. The rotation of the helical rod causes the coolant inside the rotating shaft to concentrate at its center. As the coolant accumulates, it enters a through-hole through a U-shaped groove and is then sprayed onto the surface of the hobbing cutter and the cutting edge of the workpiece. This achieves simultaneous cooling of the hobbing cutter from within and at the cutting edge, solving the problem of insufficient internal cooling from the hobbing cutter.

[0006] To address the problems of the prior art, the present invention provides a gear hobbing device for gear processing with dual cooling and chip removal, comprising a housing, a feeding device disposed inside the housing, a filter screen disposed inside the housing, and a rotating part disposed inside the housing. The rotating part includes a horizontally disposed rotating shaft with a hollow structure. The two ends of the rotating shaft are rotatably mounted on the corresponding side walls of the housing. U-shaped grooves are equidistantly provided on the rotating shaft around its central axis.

[0007] The rotating part also includes a rolling cutter, which is mounted on the rotating shaft and has several through holes equidistantly formed around its central axis.

[0008] A first servo motor is fixed to one side of the housing, and the output end of the first servo motor is fixedly connected to the end of the rotating shaft.

[0009] The end of the rotating shaft away from the first servo motor is equipped with a connector that can be connected to the external pipe, and the end of the helical rod away from the rotating shaft is rotatably connected to the connector.

[0010] As a technical solution of the present invention, the connector is fixed on the side of the housing away from the first servo motor, and the end of the connector away from the rotating shaft is provided with a liquid inlet connected to the external pipe.

[0011] The connector has an inner tube for mounting a helical rod, which can rotate around the central axis of the inner tube.

[0012] A flow channel that can communicate with the inside of the rotating shaft is provided between the connector and the inner tube.

[0013] As a technical solution of the present invention, a fixing device for fixing the rolling cutter is symmetrically arranged outside the rotating shaft.

[0014] The fixing device includes a first nut disposed on the rotating shaft. The first nut is threadedly engaged with the rotating shaft and can move along the central axis of the rotating shaft.

[0015] A limiting member is installed on one side of the first nut, which can rotate around its central axis and can fix both ends of the rolling cutter.

[0016] As one technical solution of the present invention, the two ends of the rolling cutter are symmetrically provided with a number of slots;

[0017] The limiting member has a plug rod fixed on the side away from the first nut. The plug rod corresponds to the slot and can be inserted into the slot.

[0018] As a technical solution of the present invention, a plurality of first limiting blocks are fixed at equal intervals around the central axis on the outer wall of the rotating shaft, and the first limiting blocks are used to limit the rolling cutter.

[0019] The inner wall of the rolling cutter is provided with a second limiting groove that corresponds one-to-one with the first limiting block, and the second limiting groove slides in conjunction with the first limiting block.

[0020] As one technical solution of the present invention, the feeding device includes a movable seat, and the movable seat is provided with a threaded hole;

[0021] The box body is also equipped with a threaded rod. The two ends of the threaded rod are rotatably installed on the corresponding side walls of the box body. The threaded rod is installed through the threaded hole, and the threaded rod and the threaded hole are threadedly engaged.

[0022] A second servo motor for driving the rotation of the threaded rod is also fixed on the housing, and the output end of the second servo motor is fixedly connected to one end of the threaded rod.

[0023] As a technical solution of the present invention, the movable base is also provided with a sliding hole;

[0024] A sliding rod that slides into the sliding hole is provided below the threaded rod.

[0025] As one technical solution of the present invention, a third servo motor is fixed on the moving base, a second limiting block for lifting the workpiece is fixed at the output end of the third servo motor, and a second nut for fixing the workpiece is also installed at the output end of the third servo motor.

[0026] As a technical solution of the present invention, a cleaning frame is also fixed on the output end of the third servo motor, and the cleaning frame is used to clean the debris on the third servo motor.

[0027] As one technical solution of the present invention, the top of the box is fixed with a conveying pipe connected to an external pipeline, the output end of the conveying pipe is connected to a flexible pipe, and the output end of the flexible pipe is fixed with a nozzle.

[0028] As one technical solution of the present invention, the inside of the housing is provided with a first limiting groove for installing the filter screen.

[0029] The advantages of this invention compared to the prior art are:

[0030] 1. This application uses a first servo motor to drive a rotating shaft, which in turn drives a screw rod installed inside the shaft to rotate synchronously. The rotation of the screw rod causes the coolant inside the rotating shaft to concentrate at the center of the shaft. As the coolant accumulates, it enters a through-hole through a U-shaped groove and is then sprayed onto the surface of the hobbing cutter and the cutting edge of the workpiece. This achieves cooling of both the hobbing cutter and the cutting edge, solving the problem of not being able to cool the workpiece from within the hobbing cutter.

[0031] 2. In this application, when the screw rotates at high speed, it drives the coolant to quickly enter the rotating shaft, causing the coolant to flow out rapidly. When the screw rotates slowly, the coolant enters the rotating shaft slowly, and the outflow speed of the coolant decreases, allowing the coolant to adaptively adjust its outflow speed according to the rotational speed of the rotating shaft. This solves the problem of high coolant consumption due to the inability to adjust the coolant flow rate.

[0032] 3. This application connects an external pipe to an inlet, and includes a flow channel within the connector for coolant to enter the rotating shaft. When the rotating shaft drives the screw to rotate, the inlet is located at a negative pressure within the rotating shaft, allowing coolant from the external pipe to enter the rotating shaft through the flow channel. This enables automatic coolant addition controlled by the rotating shaft and screw. Attached Figure Description

[0033] Figure 1 A three-dimensional structural diagram of a gear hobbing device with dual cooling and chip removal for gear machining. Figure 1 .

[0034] Figure 2 A three-dimensional structural diagram of a gear hobbing device with dual cooling and chip removal for gear machining. Figure 2 .

[0035] Figure 3 This is a schematic diagram of the internal structure of the housing in a gear hobbing device with dual cooling and chip removal for gear machining.

[0036] Figure 4 This is a perspective view of the rotating part in a gear hobbing device with dual cooling and chip removal capabilities for gear machining.

[0037] Figure 5 This is a perspective view of the rotating shaft in a gear hobbing device with dual cooling and chip removal capabilities for gear machining.

[0038] Figure 6 This is an exploded view of the hobbing cutter and fixing device in a gear hobbing device with dual cooling and chip removal for gear machining.

[0039] Figure 7 This is a cross-sectional view of the rotating part in a gear hobbing device with dual cooling and chip removal for gear machining.

[0040] Figure 8 This is a perspective view of a hobbing cutter in a gear hobbing device with dual cooling and chip removal for gear machining.

[0041] Figure 9 This is a perspective view of the feeding device in a gear hobbing device with dual cooling and chip removal for gear machining.

[0042] Figure 10 This is an exploded view of the feeding device in a gear hobbing device with dual cooling and chip removal for gear machining.

[0043] Figure 11 yes Figure 1 Enlarged view of point A in the image.

[0044] Figure 12 yes Figure 7 Enlarged view of point B in the image.

[0045] Figure 13 yes Figure 7 Enlarged view of point C in the image.

[0046] The following are the labels in the diagram: 1. Box body; 11. Conveying pipe; 12. Flexible pipe; 13. Nozzle; 15. First limiting groove; 2. Rotating part; 21. Rotating shaft; 211. U-shaped groove; 212. First limiting block; 213. Spiral rod; 22. Roller cutter; 221. Through hole; 222. Second limiting groove; 223. Slot; 23. Connector; 231. Liquid inlet; 232. Inner tube; 233. Flow channel; 24. Fixing device; 241. First nut; 242. Limiting component; 243. Insert rod; 3. First servo motor; 4. Threaded rod; 41. Sliding rod; 42. Second servo motor; 5. Discharge device; 51. Moving seat; 52. Threaded hole; 53. Sliding hole; 54. Third servo motor; 55. Cleaning frame; 56. Second limiting block; 57. Second nut; 6. Filter screen. Detailed Implementation

[0047] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0048] See Figures 1-13 As shown, a gear hobbing device with dual cooling and chip removal for gear processing includes a housing 1, a feeding device 5 disposed inside the housing 1, a filter screen 6 disposed inside the housing 1, and a rotating part 2 disposed inside the housing 1. The rotating part 2 includes a horizontally disposed rotating shaft 21. The rotating shaft 21 has a hollow structure. The two ends of the rotating shaft 21 are rotatably mounted on the corresponding side walls of the housing 1. U-shaped grooves 211 are equidistantly provided on the rotating shaft 21 around its central axis.

[0049] The rotating part 2 also includes a rolling cutter 22, which is mounted on the rotating shaft 21. Several through holes 221 are equidistantly formed on the rolling cutter 22 around its central axis.

[0050] A first servo motor 3 is fixed on one side of the housing 1, and the output end of the first servo motor 3 is fixedly connected to the end of the rotating shaft 21.

[0051] The end of the rotating shaft 21 away from the first servo motor 3 is equipped with a connector 23 that can be connected to the external pipe, and the end of the screw rod 213 away from the rotating shaft 21 is rotatably connected to the connector 23.

[0052] When the first servo motor 3 starts, it drives the rotating shaft 21 to rotate. This rotating shaft 21 then drives the internally mounted screw rod 213 to rotate synchronously. The rotation of the screw rod 213 causes the coolant inside the rotating shaft 21 to concentrate at the center of the shaft. As the coolant accumulates, it enters the through-hole 221 through the U-shaped groove 211 and is then sprayed onto the surface of the hobbing cutter 22 and the cutting edge of the workpiece. This allows the coolant to cool both the inside of the hobbing cutter 22 and the cutting edge, solving the problem of cooling from within the hobbing cutter 22.

[0053] When the screw 213 rotates at high speed, it drives the coolant to quickly enter the rotating shaft 21, causing the coolant to flow out rapidly. When the screw 213 rotates slowly, the coolant enters the rotating shaft 21 slowly, and the outflow speed of the coolant in the rotating shaft 21 decreases. This allows the coolant to adaptively adjust its outflow speed according to the rotation speed of the rotating shaft 21, solving the problem of high coolant consumption due to the inability to adjust the coolant flow rate.

[0054] Please refer to this carefully. Figure 4 , Figure 5 , Figure 6 , Figure 7 Figure 12 and Figure 13 As shown, the connector 23 is fixed on the side of the housing 1 away from the first servo motor 3, and the end of the connector 23 away from the rotating shaft 21 is provided with an inlet 231 that is connected to the external pipe.

[0055] The connector 23 has an inner tube 232 for mounting the helical rod 213, which can rotate around the central axis of the inner tube 232;

[0056] A flow channel 233 that can communicate with the inside of the rotating shaft 21 is provided between the connector 23 and the inner tube 232.

[0057] By connecting the external pipe to the inlet 231, a flow channel 233 for coolant to enter the rotating shaft 21 is provided within the connector 23. When the rotating shaft 21 drives the screw 213 to rotate, the inlet 231 is at a negative pressure state inside the rotating shaft 21, allowing the coolant in the external pipe to enter the rotating shaft 21 through the flow channel 233. This enables the rotating shaft 21 and the screw 213 to work together to automatically add coolant.

[0058] Please refer to this carefully. Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 12 and Figure 13 As shown, a fixing device 24 for fixing the rolling cutter 22 is also symmetrically arranged on the outside of the rotating shaft 21;

[0059] The fixing device 24 includes a first nut 241 disposed on the rotating shaft 21. The first nut 241 is threadedly engaged with the rotating shaft 21 and can move along the central axis of the rotating shaft 21.

[0060] A limiting member 242 that can rotate around its central axis is installed on one side of the first nut 241, and the limiting member 242 can fix both ends of the rolling cutter 22.

[0061] When the first nut 241 is rotated, the first nut 241 can move along the central axis of the rotating shaft 21. At this time, the first nut 241 will drive the limiting member 242 to gradually approach the end of the rolling cutter 22 until the limiting member 242 is in complete contact with the end of the rolling cutter 22, thereby fixing the rolling cutter 22.

[0062] Please refer to this carefully. Figure 5 and Figure 8 As shown, the two ends of the rolling cutter 22 are symmetrically provided with a number of slots 223;

[0063] A rod 243 is fixed on the side of the limiting member 242 away from the first nut 241. The rod 243 corresponds to the slot 223 and can be inserted into the slot 223.

[0064] To achieve effective connection between the limiting member 242 and the end of the rolling cutter 22, a slot 223 is provided at the end of the rolling cutter 22. When the first nut 241 drives the limiting member 242 to approach the rolling cutter 22, the insert rod 243 on the limiting member 242 will be inserted into the slot 223, thus preventing the limiting member 242 from separating from the end of the rolling cutter 22.

[0065] Please refer to this carefully. Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 12 and Figure 13 As shown, a number of first limiting blocks 212 are fixed at equal intervals around the central axis on the outer wall of the rotating shaft 21. The first limiting blocks 212 are used to limit the rolling cutter 22.

[0066] The inner wall of the rolling cutter 22 is provided with a second limiting groove 222 that corresponds one-to-one with the first limiting block 212, and the second limiting groove 222 slides in cooperation with the first limiting block 212.

[0067] To ensure the stability of the rolling cutter 22, several first limiting blocks 212 are fixed on the rotating shaft 21. When the rolling cutter 22 is installed on the rotating shaft 21, the second limiting groove 222 opened on the inner wall of the rolling cutter 22 can be adapted to the first limiting blocks 212. The cooperation between the first limiting blocks 212 and the second limiting groove 222 can effectively prevent the rolling cutter 22 from rotating axially, thereby ensuring the stability of the rolling cutter 22.

[0068] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 , Figure 9 , Figure 10 and Figure 11 As shown, the feeding device 5 includes a movable base 51, and the movable base 51 has a threaded hole 52.

[0069] The box 1 is also equipped with a threaded rod 4. The two ends of the threaded rod 4 are rotatably installed on the corresponding side wall of the box 1. The threaded rod 4 is installed through the threaded hole 52, and the threaded rod 4 and the threaded hole 52 are threadedly engaged.

[0070] A second servo motor 42 for driving the threaded rod 4 to rotate is also fixed on the housing 1. The output end of the second servo motor 42 is fixedly connected to one end of the threaded rod 4.

[0071] By positioning the threaded rod 4 below the rotating shaft 21, with the central axis of the threaded rod 4 perpendicularly intersecting the projection of the central axis of the rotating shaft 21, when the second servo motor 42 drives the threaded rod 4 to rotate, the threaded rod 4 will drive the moving seat 51 to move synchronously through the threaded hole 52 that is threaded with it, thereby realizing the adjustment of the distance between the workpiece and the rolling cutter 22 by the feeding device 5.

[0072] Please refer to this carefully. Figure 1 , Figure 3 , Figure 9 , Figure 10 and Figure 11 As shown, the movable base 51 is also provided with a sliding hole 53;

[0073] Below the threaded rod 4 is a slide rod 41 that slides in conjunction with the slide hole 53.

[0074] To ensure the stability of the movable seat 51, a sliding hole 53 is provided on the movable seat 51. When the movable seat 51 moves, it moves along the central axis of the slide rod 41 through the sliding hole 53, which effectively ensures the stability of the movable seat 51 during movement.

[0075] Please refer to this carefully. Figure 1 , Figure 3 , Figure 9 , Figure 10 and Figure 11 As shown, a third servo motor 54 is fixed on the movable base 51. A second limiting block 56 for lifting the workpiece is fixed to the output end of the third servo motor 54. A second nut 57 for fixing the workpiece is also installed on the output end of the third servo motor 54.

[0076] By placing the workpiece onto the output end of the third servo motor 54, the workpiece is positioned on the second limit block 56. Then, by rotating the second nut 57, the second nut 57 moves downward along the output end of the third servo motor 54, thereby pressing the workpiece tightly. Then, the third servo motor 54 is started, so that the third servo motor 54 drives the workpiece to rotate through its output end.

[0077] Please refer to this carefully. Figure 1 , Figure 3 , Figure 9 , Figure 10 and Figure 11 As shown, a cleaning frame 55 is also fixed on the output end of the third servo motor 54. The cleaning frame 55 is used to clean the debris on the third servo motor 54.

[0078] To prevent debris from accumulating on the third servo motor 54, a cleaning frame 55 is fixed externally to the output end of the third servo motor 54, so that the inner side of the cleaning frame 55 is in contact with the surface of the third servo motor 54. When the third servo motor 54 is started, it drives the cleaning frame 55 at the output end to rotate, and the rotating cleaning frame 55 cleans the debris remaining on the surface of the third servo motor 54.

[0079] Please refer to this carefully. Figure 1 and Figure 2 As shown, a delivery pipe 11 connected to an external pipeline is fixed to the top of the housing 1. A flexible pipe 12 is connected to the output end of the delivery pipe 11, and a nozzle 13 is fixed to the output end of the flexible pipe 12.

[0080] The flexible tube 12 is bent so that the nozzle 13 installed at the output end of the flexible tube 12 can be aligned with the cutting part of the workpiece. Then, the coolant is transported to the flexible tube 12 through the delivery pipe 11 through the external pipe, and then sprayed onto the workpiece through the nozzle 13 at the output end of the flexible tube 12, thereby cooling the workpiece.

[0081] Please refer to this carefully. Figure 3 As shown, the inside of the housing 1 is provided with a first limiting groove 15 for installing the filter screen 6.

[0082] By creating a first limiting groove 15 on the inner wall of the housing 1, the filter screen 6 of the housing 1 can be installed in the first limiting groove 15. This allows the filter screen 6 to slide horizontally along the first limiting groove 15, facilitating quick removal of the filter screen 6 from the housing 1 for cleaning.

Claims

1. A gear hobbing device for gear machining with dual cooling and chip removal, comprising a housing (1), a feeding device (5) disposed inside the housing (1), a filter screen (6) disposed inside the housing (1), and a rotating part (2) disposed inside the housing (1), characterized in that, The rotating part (2) includes a horizontally arranged rotating shaft (21). The rotating shaft (21) has a hollow structure. Both ends of the rotating shaft (21) are rotatably mounted on the corresponding side walls of the housing (1). U-shaped grooves (211) are equidistantly opened on the rotating shaft (21) around its central axis. The rotating part (2) also includes a rolling cutter (22), which is mounted on the rotating shaft (21). The rolling cutter (22) has several through holes (221) equidistantly arranged around its central axis. A first servo motor (3) is fixed on one side of the housing (1), and the output end of the first servo motor (3) is fixedly connected to the end of the rotating shaft (21). The end of the rotating shaft (21) away from the first servo motor (3) is equipped with a connector (23) that can be connected to the external pipe, and the end of the screw rod (213) away from the rotating shaft (21) is rotatably connected to the connector (23).

2. The gear hobbing device for gear machining with dual cooling and chip removal according to claim 1, characterized in that, The connector (23) is fixed on the side of the housing (1) away from the first servo motor (3), and the end of the connector (23) away from the rotating shaft (21) is provided with an inlet (231) connected to the external pipe. The connector (23) is internally provided with an inner tube (232) for mounting a helical rod (213), and the helical rod (213) is able to rotate around the central axis of the inner tube (232); A flow channel (233) that can communicate with the inside of the rotating shaft (21) is provided between the connector (23) and the inner tube (232).

3. The gear hobbing device for gear machining with dual cooling and chip removal according to claim 1, characterized in that, The rotating shaft (21) is also symmetrically provided with fixing devices (24) for fixing the rolling cutter (22); The fixing device (24) includes a first nut (241) disposed on the rotating shaft (21), the first nut (241) being threadedly engaged with the rotating shaft (21), and the first nut (241) being able to move along the central axis direction of the rotating shaft (21); A limiting member (242) capable of rotating around its central axis is installed on one side of the first nut (241), and the limiting member (242) can fix both ends of the rolling cutter (22).

4. A gear hobbing device for gear machining with dual cooling and chip removal according to claim 3, characterized in that, The rolling cutter (22) has several slots (223) symmetrically opened at both ends; The limiting member (242) has a plug rod (243) fixed on the side away from the first nut (241). The plug rod (243) corresponds to the slot (223) and can be inserted into the slot (223).

5. A gear hobbing device for gear machining with dual cooling and chip removal according to claim 1, characterized in that, Several first limiting blocks (212) are fixed at equal intervals around the central axis on the outer wall of the rotating shaft (21). The first limiting blocks (212) are used to limit the rolling cutter (22). The inner wall of the rolling cutter (22) is provided with a second limiting groove (222) that corresponds one-to-one with the first limiting block (212), and the second limiting groove (222) slides in cooperation with the first limiting block (212).

6. A gear hobbing device for gear machining with dual cooling and chip removal according to claim 1, characterized in that, The feeding device (5) includes a movable seat (51) and a threaded hole (52) is provided on the movable seat (51); The box (1) is also provided with a threaded rod (4). The two ends of the threaded rod (4) are rotatably installed on the corresponding side wall of the box (1). The threaded rod (4) is installed through the threaded hole (52). The threaded rod (4) and the threaded hole (52) are threadedly engaged. A second servo motor (42) for driving the threaded rod (4) to rotate is also fixed on the housing (1). The output end of the second servo motor (42) is fixedly connected to one end of the threaded rod (4).

7. A gear hobbing device for gear machining with dual cooling and chip removal according to claim 6, characterized in that, The movable base (51) is also provided with a sliding hole (53); Below the threaded rod (4), a slide rod (41) is provided that slides in cooperation with the slide hole (53).

8. A gear hobbing device for gear machining with dual cooling and chip removal according to claim 6, characterized in that, A third servo motor (54) is fixed on the movable seat (51). A second limiting block (56) for lifting the workpiece is fixed at the output end of the third servo motor (54). A second nut (57) for fixing the workpiece is also installed at the output end of the third servo motor (54).

9. A gear hobbing device for gear machining with dual cooling and chip removal according to claim 8, characterized in that, A cleaning rack (55) is also fixed on the output end of the third servo motor (54). The cleaning rack (55) is used to clean the debris on the third servo motor (54).

10. A gear hobbing device for gear machining with dual cooling and chip removal according to claim 1, characterized in that, The top of the box (1) is fixed with a delivery pipe (11) connected to an external pipeline. The output end of the delivery pipe (11) is connected to a flexible pipe (12), and the output end of the flexible pipe (12) is fixed with a nozzle (13).

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