A cylindrical gear machining apparatus and method

Abstract

The application discloses a cylindrical gear machining device and method, and relates to the technical field of gear machining. The cylindrical gear machining device comprises a device body, a chuck and a gear hobbing machine group which are installed on the device body, and further comprises a hanger which is connected with the gear hobbing machine group, a supporting plate which is fixedly connected to the bottom of the hanger, a supporting plate which is fixedly connected to the supporting plate, and the supporting plate and the gear hobbing machine group are respectively located on the two sides of the axis of the chuck; a horizontal pipe which is provided with a through groove and is connected to the supporting plate; a transmission gear is fixedly installed on the outer wall of the horizontal pipe, and the horizontal pipe is connected with the chuck through a connecting part; through the arrangement of the supporting plate and the horizontal pipe, the other side of the cylindrical blank can be supported, the cylindrical blank is not prone to deviation and vibration during the machining process, and thus the precision of the cylindrical gear is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, specifically to a cylindrical gear processing equipment. Background Technology

[0002] In the production of drones and robots, miniature metal gear shafts are widely used as key transmission components. These gear shafts typically require high-precision gear teeth to be machined on the shaft surface using machine tools such as gear hobbing machines. Because these parts have extremely high requirements for tooth profile accuracy, tooth pitch consistency, and surface quality, their machining process must rely on a stable and reliable clamping and positioning system to ensure the accurate relative position between the tool and the workpiece, thereby meeting the consistency and reliability requirements in mass production.

[0003] However, existing clamping and positioning methods have obvious limitations in practical applications. The overall size of the gear shaft is small, and some gear shafts do not have positioning recesses at their ends. This means that the push rods used by the machine tool cannot be stably clamped to the end face of the gear shaft. During gear hobbing, this unstable positioning state can easily cause the gear shaft to shift or vibrate, directly affecting the machining accuracy and surface quality of the gear teeth, thus restricting the efficient and high-precision manufacturing of micro gear shafts. Summary of the Invention

[0004] This invention provides a cylindrical gear processing equipment. By setting up a support plate and a horizontal tube, the other side of the cylindrical blank can be strongly supported, making it less likely for the cylindrical blank to shift or vibrate during processing. This ensures the accuracy of the cylindrical gear and solves the problem mentioned in the background art that the gear shaft is prone to shifting, affecting the accuracy and quality of the gear teeth.

[0005] This invention provides the following technical solution: A cylindrical gear processing device includes a device body on which a chuck and a gear hobbing unit are mounted. It also includes: a hanger connected to the gear hobbing unit; a support plate fixedly connected to the bottom of the hanger; a support plate fixedly connected to the support plate; the support plate and the gear hobbing unit being located on opposite sides of the chuck's axis; and a horizontal tube with a through groove at its end connected to the support plate. A transmission gear is fixedly mounted on the outer wall of the horizontal tube, and the horizontal tube is connected to the chuck via a connecting part.

[0006] As a preferred embodiment of the present invention, the connecting part includes a sleeve rotatably connected to the support plate, and a driven gear meshing with the transmission gear is fixedly installed on the outer wall of the sleeve; wherein, a transmission shaft is rotatably installed on the equipment body, and a slide rod is fixedly connected to the end of the transmission shaft, the slide rod is slidably inserted into the sleeve, and the transmission shaft is connected to the chuck through two meshing transmission gears.

[0007] As a preferred embodiment of the present invention, the transmission gear is disposed at one end of the horizontal tube, an annular groove is provided on the outer wall of the horizontal tube, and the annular groove is close to the end of the transmission gear. An inner hole extending into the through groove is provided in the annular groove, and a fan blade is installed inside the horizontal tube.

[0008] As a preferred embodiment of the present invention, one end of the transmission gear is provided with a chamfer, and the chamfer is located at the end near the annular groove.

[0009] As a preferred embodiment of the present invention, a circular hole is provided on the support plate, and the horizontal tube is sleeved in the circular hole. When the horizontal tube rotates continuously, the horizontal tube reciprocates and vibrates along the axial direction.

[0010] As a preferred embodiment of the present invention, a first annular plate is fixedly connected to the outer wall of the horizontal tube, and a circumferentially distributed active protrusion is fixedly connected to the end of the first annular plate. A circumferentially distributed driven protrusion is fixedly connected to the outer wall of the support plate. The horizontal tube is provided with a support end face, the support end face and the first annular plate are respectively located on both sides of the support plate, a second annular plate is rotatably mounted on the support end face, and a first spring is installed between the second annular plate and the support plate.

[0011] As a preferred embodiment of the present invention, a C-shaped guide plate is slidably mounted on the support plate, a baffle is fixedly connected to the C-shaped guide plate, a second spring is installed between one end of the C-shaped guide plate and the support plate, and the baffle coincides with the axis of the chuck.

[0012] As a preferred embodiment of the present invention, a horizontally arranged guide rod is fixedly connected to the main body of the equipment, the hanger is horizontally slidably installed on the guide rod, a plug rod is slidably inserted into the top of the hanger, a positioning sleeve is fixedly connected to the outer wall of the gear hobbing unit, and the end of the plug rod is inserted into the positioning sleeve.

[0013] As a preferred embodiment of the present invention, the exhaust end of the horizontal pipe is threadedly connected to a collection bucket, and the air inlet end of the horizontal pipe is clamped to a sieve plate. Both the sieve plate and the collection bucket are provided with ventilation holes.

[0014] A method for machining cylindrical gears includes the following steps: S1. Fix the cylindrical blank on the chuck; S2. Place the pallet against the outer wall of the columnar blank and connect the hanger to the gear hobbing unit; S3. The cylindrical blank is continuously rotated by the chuck; S4. Move the gear hobbing unit to complete the tooth groove machining of the columnar blank; S5. The cylindrical blank is supported and the tooth grooves are cleaned by the transmission gear on the outer wall of the horizontal tube. S6. Move the gear hobbing unit in the opposite direction to the horizontal tube and remove the cylindrical gear from the chuck.

[0015] Compared with the prior art, the present invention provides a cylindrical gear processing device, which has the following beneficial effects: 1. In this cylindrical gear processing equipment, by placing the support plate and the gear hobbing unit against the two sides of the cylindrical blank respectively, when the gear hobbing unit cuts tooth grooves on the cylindrical blank, the support plate can provide strong support on the other side of the cylindrical blank, making it less likely for the cylindrical blank to shift or vibrate during processing, thereby ensuring the accuracy of the cylindrical gear.

[0016] 2. In this cylindrical gear processing equipment, by having the horizontal tube simultaneously rest against the outer wall of the cylindrical component, the cylindrical blank is better supported, and the horizontal tube rotates together with the cylindrical blank. As the translation proceeds, the transmission gear and the cylindrical gear mesh with each other. The transmission gear in the meshing state can provide more stable support for the cylindrical blank, and the force will be more even. Moreover, the transmission gear can also push out the chips in the tooth groove, making the subsequent processing of the cylindrical gear simpler.

[0017] 3. In this cylindrical gear processing equipment, the transversely moving transmission gear pushes the debris in the tooth groove to the annular groove, and the rotating horizontal tube drives the internal fan blades to rotate together, causing one end of the horizontal tube to draw in air and the other end to exhaust air. This allows the horizontal tube to effectively dissipate heat, and the horizontal tube can also dissipate heat to the cylindrical blank through the transmission gear, making the cylindrical blank less susceptible to high temperature.

[0018] 4. In this cylindrical gear processing equipment, air is drawn into the annular groove through the inner hole. The annular groove then draws some of the debris that falls from the gear groove into the through groove, and then discharges it from the exhaust end of the through groove, making it difficult for the debris to fly around.

[0019] 5. In this cylindrical gear processing equipment, the first and second annular plates are driven to rotate synchronously by the horizontal tube, which causes the rotating horizontal tube to vibrate back and forth along the axial direction at the same time. This also drives the transmission gear to vibrate synchronously, which makes it easier for the transmission gear to eject the debris in the tooth groove, and the debris in the annular groove is less likely to block the inner hole.

[0020] The parts of this device not described herein are the same as or can be implemented using existing technologies. By setting up the support plate and the horizontal tube, this invention can provide strong support to the other side of the columnar blank, making it less likely for the columnar blank to shift or vibrate during processing, thereby ensuring the accuracy of the columnar gear. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0022] Figure 1 This is a first-view perspective stereoscopic diagram of the present invention; Figure 2 This is a second-view perspective stereoscopic diagram of the present invention; Figure 3 This is a three-dimensional schematic diagram of a partial structure of the present invention. Figure 1 ; Figure 4 This is a three-dimensional schematic diagram of a partial structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the sleeve and horizontal tube structure in this invention; Figure 6 This is an exploded view of a partial structure of the present invention; Figure 7 This is a partial top-view cross-sectional diagram of the present invention; Figure 8 For the present invention Figure 7 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1. Equipment body; 2. Chuck; 3. Gear hobbing unit; 4. Hanger; 5. Support plate; 6. Support plate; 7. Horizontal tube; 8. Through groove; 9. Transmission gear; 10. Chamfer; 11. Annular groove; 12. Inner hole; 13. Fan blade; 14. Collection bucket; 15. Screen plate; 16. Round hole; 17. Vent hole; 18. First annular plate; 19. Driven protrusion; 20. Driving protrusion; 21. Second annular plate; 22. First spring; 23. Support end face; 24. Sleeve; 25. Driven gear; 26. Drive shaft; 27. Transmission gear; 28. Slide rod; 29. ​​Guide rod; 30. Insert rod; 31. Insert rod; 32. Baffle; 33. Guide plate; 34. Second spring. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example: Reference Figures 1-8As shown, a cylindrical gear processing equipment includes a machine body 1 for processing gears. A chuck 2 and a gear hobbing unit 3 are mounted on the machine body 1. The chuck 2 is used to fix and drive the cylindrical blank to rotate. The gear hobbing unit 3 is used to cut gear teeth on the cylindrical blank, and the gear hobbing unit 3 can translate along the axis of the chuck 2. It also includes a hanger 4 connected to the gear hobbing unit 3. A support plate 5 is fixedly connected to the bottom of the hanger 4. A support plate 6 is fixedly connected to the support plate 5. The support plate 6 has an arc shape. The support plate 6 and the gear hobbing unit 3 are located on opposite sides of the axis of the chuck 2. It also includes a horizontal tube 7 with a through groove 8 at the end, connected to the support plate 5. A transmission gear 9 is fixedly installed on the outer wall of the horizontal tube 7. The transmission gear 9 can directly mesh with the gear teeth of the cylindrical gear. The horizontal tube 7 is connected to the chuck 2 through a connecting part.

[0026] In this embodiment, the support plate 6 on the support plate 5 can support the other side of the columnar blank. That is, the support plate 6 and the gear hobbing unit 3 will be located on opposite sides of the columnar blank. When the gear hobbing unit 3 cuts tooth grooves on the columnar blank, the support plate 6 can provide strong support on the other side of the columnar blank, making it less likely for the columnar blank to shift or vibrate during processing, thereby ensuring the accuracy of the columnar gear. When the gear hobbing unit 3 moves along the axis of the columnar blank, it will also drive the support plate 6 to move synchronously through the hanger 4 and the support plate 5. This allows the support plate 6 to maintain the same opposing relationship with the gear hobbing unit 3 as much as possible, so as to ensure that the support plate 6 can effectively support the columnar blank throughout the entire processing. At the same time, the horizontal tube 7 will lean against the outer wall of the columnar fitting and be located on the same side as the support plate 6, but the two do not overlap, so that the columnar blank is better supported. It will also move along with the gear hobbing unit 3. During the translation, the horizontal tube 7 will rotate together with the columnar blank in opposite directions. As the translation proceeds, the guide gear 9 on the horizontal tube 7 will gradually insert into the cut tooth groove, causing the guide gear 9 to mesh with the columnar gear. The guide gear 9 in the meshing state can provide more stable support for the columnar blank and the force will be more even. Moreover, the guide gear 9 can also push out the debris in the tooth groove, making the subsequent processing of the columnar gear simpler.

[0027] Reference Figures 3-5 As shown, in other embodiments, the connecting part includes a sleeve 24 rotatably connected to the support plate 5, and a driven gear 25 that meshes with the transmission gear 9 is fixedly installed on the outer wall of the sleeve 24; wherein, a drive shaft 26 is rotatably installed on the equipment body 1, and a slide rod 28 is fixedly connected to the end of the drive shaft 26. The slide rod 28 matches the cross-sectional shape of the sliding hole of the sleeve 24, and the slide rod 28 is slidably inserted into the sleeve 24. The drive shaft 26 and the chuck 2 are connected by two meshing drive gears 27.

[0028] In this embodiment, the rotating chuck 2 drives the drive shaft 26 to rotate through two meshing drive gears 27. The drive shaft 26 drives the sleeve 24 to rotate synchronously through the slide rod 28. The sleeve 24 drives the transmission gear 9 to rotate synchronously with the horizontal tube 7 through the driven gear 25, so that the transmission gear 9 can rotate synchronously with the cylindrical gear.

[0029] Reference Figures 6-7 As shown, in other embodiments, the transmission gear 9 is disposed at one end of the horizontal tube 7, the outer wall of the horizontal tube 7 is provided with an annular groove 11, and the annular groove 11 is close to the end of the transmission gear 9. An inner hole 12 extending into the through groove 8 is provided in the annular groove 11, and a fan blade 13 is installed in the horizontal tube 7.

[0030] In this embodiment, the transversely moving transmission gear 9 pushes the debris in the tooth groove towards the annular groove 11, while the rotating horizontal tube 7 drives the internal fan blade 13 to rotate together, causing one end of the horizontal tube 7 to draw in air and the other end to exhaust air. This allows the horizontal tube 7 to effectively dissipate heat, and the horizontal tube 7 can also dissipate heat to the columnar blank through the transmission gear 9, making the columnar blank less susceptible to high temperature. In addition, the through groove 8 inside the horizontal tube 7 will generate negative pressure and draw air into the annular groove 11 through the inner hole 12. The annular groove 11 will then draw some of the debris that falls from the tooth groove into the through groove 8 and then discharge it from the exhaust end of the through groove 8, making it less likely for the debris to splash everywhere.

[0031] In addition, one end of the transmission gear 9 is provided with a chamfer 10. The chamfer 10 is located at the end near the annular groove 11. The chamfer 10 can prevent the transmission gear 9 from scratching the tooth groove of the cylindrical gear, and at the same time, it can make the debris more efficiently pushed out of the tooth groove.

[0032] Reference Figures 6-8 As shown, in other embodiments, a circular hole 16 is provided on the support plate 5, and the horizontal tube 7 is sleeved in the circular hole 16. The horizontal tube 7 can rotate and slide along the axial direction within the circular hole 16. When the horizontal tube 7 rotates continuously, it vibrates back and forth along the axial direction. The specific structural features are as follows: a first annular plate 18 is fixedly connected to the outer wall of the horizontal tube 7, and a circumferentially distributed active protrusion 20 is fixedly connected to the end of the first annular plate 18. A circumferentially distributed driven protrusion 19 is fixedly connected to the outer wall of the support plate 5. The active protrusion 20 and the driven protrusion 19 are both semi-circular in shape. The horizontal tube 7 is provided with a support end face 23. The support end face 23 and the first annular plate 18 are located on the two sides of the support plate 5, respectively. A second annular plate 21 is rotatably installed on the support end face 23. A first spring 22 is installed between the second annular plate 21 and the support plate 5. The first spring 22 keeps the horizontal tube 7 in a state of pressing against the first annular plate 18.

[0033] During the rotation of the horizontal tube 7, the horizontal tube 7 will also drive the first annular plate 18 and the second annular plate 21 to rotate synchronously. The first annular plate 18 will drive multiple active protrusions 20 to revolve around the axis of the horizontal tube 7. The multiple active protrusions 20 will press against multiple driven protrusions 19 in sequence. At this time, under the action of the first spring 22, the rotating horizontal tube 7 will vibrate back and forth along the axial direction, which will also drive the transmission gear 9 to vibrate synchronously. This will facilitate the transmission gear 9 to push out the debris in the tooth groove, and the debris in the annular groove 11 will not easily block the inner hole 12.

[0034] Reference Figure 6 and Figure 7 As shown, in other embodiments, a C-shaped guide plate 33 is slidably mounted on the support plate 5, a baffle 32 is fixedly connected to the C-shaped guide plate 33, a second spring 34 is installed between one end of the C-shaped guide plate 33 and the support plate 5, and the baffle 32 coincides with the axis of the chuck 2.

[0035] During the processing, the support plate 5 will press the baffle 32 against the shaft end of the columnar blank. This will prevent the debris generated on the gear hobbing unit 3 from flying onto the transmission gear 9. At the same time, it can also press the end of the columnar part. As the support plate 5 moves, the baffle 32 will slide in the opposite direction on the support plate 5 under the action of the counter-thrust of the columnar blank.

[0036] Reference Figure 3 and Figure 5 As shown, in other embodiments, a horizontally arranged guide rod 29 is fixedly connected to the equipment body 1, the hanger 4 is horizontally slidably installed on the guide rod 29, the top of the hanger 4 is slidably inserted with a plug rod 30, the outer wall of the gear hobbing unit 3 is fixedly connected with a positioning sleeve 31, and the end of the plug rod 30 is inserted into the positioning sleeve 31.

[0037] During processing, the hanger 4 is pushed laterally on the guide rod 29 so that one end of the insert rod 30 faces the sleeve 31. Then, the end of the insert rod 30 is inserted into the sleeve 31, which can achieve the positioning of the entire device. When the gear hobbing unit 3 moves horizontally, it can drive the hanger 4 and the horizontal tube 7 to move synchronously. After processing, the insert rod 30 in the sleeve 31 is pulled out, and then the hanger 4 is pushed in the opposite direction so that it drives the horizontal tube 7 away from the processing station, which makes it easier for the staff to position and unload the column gear.

[0038] Reference Figure 6 As shown, in other embodiments, the exhaust end of the horizontal pipe 7 is threadedly connected to a collection bucket 14, and the air inlet end of the horizontal pipe 7 is snapped with a sieve plate 15. Both the sieve plate 15 and the collection bucket 14 are provided with ventilation holes 17. When the horizontal pipe 7 draws in air, the sieve plate 15 can prevent foreign objects from entering the through groove 8 and contaminating the fan blade 13, while the collection bucket 14 can collect the debris discharged from the through groove 8 and prevent the debris from splashing everywhere and polluting the surrounding environment.

[0039] Reference Figures 1-8 As shown, a method for machining a cylindrical gear includes the following steps: S1. Fix the cylindrical blank on the chuck 2; S2. Place the pallet 6 against the outer wall of the columnar blank and connect the hanger 4 to the gear hobbing unit 3; S3. The cylindrical blank is continuously rotated by the chuck 2; S4. Move the gear hobbing unit 3 to complete the tooth groove machining of the columnar blank; S5. The columnar blank is supported and the tooth groove is cleaned by the transmission gear 9 on the outer wall of the horizontal tube 7. S6. Move the gear hobbing unit 3 and the horizontal tube 7 in opposite directions and remove the cylindrical gear from the chuck 2.

[0040] In this invention, during use, the cylindrical blank is fixed on the chuck 2, and the support plate 6 on the support plate 5 is placed on the other side of the cylindrical blank. That is, the support plate 6 and the gear hobbing unit 3 are located on opposite sides of the cylindrical blank. Thus, when the gear hobbing unit 3 cuts tooth grooves on the cylindrical blank, the support plate 6 can provide strong support on the other side of the cylindrical blank, making it less likely for the cylindrical blank to shift or vibrate during processing, thereby ensuring the accuracy of the cylindrical gear. When the gear hobbing unit 3 moves along the axis of the cylindrical blank, the support plate 6 will also move synchronously through the hanger 4 and the support plate 5. This allows the support plate 6 to maintain the same opposing relationship with the gear hobbing unit 3 as much as possible, ensuring that the support plate 6 can effectively support the cylindrical blank throughout the entire processing. Meanwhile, the horizontal tube 7 will lean against the outer wall of the columnar fitting and be located on the same side as the support plate 6, but the two do not overlap, so that the columnar blank is better supported and will move along with the gear hobbing unit 3. During the translation, the rotating chuck 2 will drive the drive shaft 26 to rotate through two meshing drive gears 27. The drive shaft 26 will drive the sleeve 24 to rotate synchronously through the slide rod 28. The sleeve 24 will drive the transmission gear 9 to rotate synchronously with the horizontal tube 7 through the driven gear 25, so that the transmission gear 9 can rotate synchronously with the columnar gear in opposite directions. As the translation proceeds, the transmission gear 9 on the horizontal tube 7 will gradually insert into the cut tooth groove, so that the transmission gear 9 will mesh with the columnar gear. The transmission gear 9 in the meshing state can provide more stable support for the columnar blank and the force will be more even. Moreover, the transmission gear 9 can also push out the chips in the tooth groove, making the subsequent processing of the columnar gear simpler. The transversely moving transmission gear 9 pushes the debris in the tooth groove towards the annular groove 11. The rotation of the horizontal tube 7 drives the internal fan blade 13 to rotate as well, causing one end of the horizontal tube 7 to draw in air and the other end to exhaust air. This allows the horizontal tube 7 to effectively dissipate heat. The horizontal tube 7 can also dissipate heat from the columnar blank through the transmission gear 9, making the columnar blank less susceptible to high temperature. In addition, the through groove 8 inside the horizontal tube 7 will generate negative pressure and draw air into the annular groove 11 through the inner hole 12. The annular groove 11 will then draw some of the debris that falls from the tooth groove into the through groove 8 and then discharge it from the exhaust end of the through groove 8, making it less likely for the debris to fly around.

[0041] Components not described in detail in this article are existing technologies.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cylindrical gear processing device, comprising a device body (1), wherein a chuck (2) and a gear hobbing unit (3) are mounted on the device body (1), characterized in that, Also includes: The hanger (4) is connected to the gear hobbing machine (3). A support plate (5) is fixedly connected to the bottom of the hanger (4). A support plate (6) is fixedly connected to the support plate (5). The support plate (6) and the gear hobbing machine (3) are located on opposite sides of the axis of the chuck (2). A horizontal tube (7) with a through groove (8) at one end is connected to the support plate (5); The horizontal tube (7) is fixedly mounted with a transmission gear (9) on its outer wall, and the horizontal tube (7) is connected to the chuck (2) through a connecting part.

2. The cylindrical gear processing equipment according to claim 1, characterized in that, The connecting part includes a sleeve (24) rotatably connected to the support plate (5), and a passive gear (25) that meshes with the transmission gear (9) is fixedly installed on the outer wall of the sleeve (24). The device body (1) is rotatably mounted with a drive shaft (26), and a slide rod (28) is fixedly connected to the end of the drive shaft (26). The slide rod (28) is slidably inserted into the sleeve (24). The drive shaft (26) and the chuck (2) are connected by two meshing drive gears (27).

3. The cylindrical gear processing equipment according to claim 1, characterized in that, The transmission gear (9) is located at one end of the horizontal tube (7). The outer wall of the horizontal tube (7) is provided with an annular groove (11), and the annular groove (11) is close to the end of the transmission gear (9). An inner hole (12) extending into the through groove (8) is provided in the annular groove (11). A fan blade (13) is installed in the horizontal tube (7).

4. The cylindrical gear processing equipment according to claim 3, characterized in that, One end of the transmission gear (9) is provided with a chamfer (10), and the chamfer (10) is located at the end near the annular groove (11).

5. The cylindrical gear processing equipment according to claim 2, characterized in that, The support plate (5) has a circular hole (16) and the horizontal tube (7) is fitted inside the circular hole (16). When the horizontal tube (7) rotates continuously, the horizontal tube (7) vibrates back and forth along the axial direction.

6. The cylindrical gear processing equipment according to claim 5, characterized in that, The outer wall of the horizontal tube (7) is fixedly connected to a first annular plate (18), and the end of the first annular plate (18) is fixedly connected to a circumferentially distributed active protrusion (20). The outer wall of the support plate (5) is fixedly connected to a circumferentially distributed driven protrusion (19). The horizontal tube (7) is provided with a support end face (23), the support end face (23) and the first annular plate (18) are respectively located on both sides of the support plate (5), the second annular plate (21) is rotatably installed on the support end face (23), and a first spring (22) is installed between the second annular plate (21) and the support plate (5).

7. The cylindrical gear processing equipment according to claim 1, characterized in that, A C-shaped guide plate (33) is slidably mounted on the support plate (5), and a baffle (32) is fixedly connected to the C-shaped guide plate (33). A second spring (34) is installed between one end of the C-shaped guide plate (33) and the support plate (5). The baffle (32) coincides with the axis of the chuck (2).

8. The cylindrical gear processing equipment according to claim 1, characterized in that, A horizontally arranged guide rod (29) is fixedly connected to the main body (1) of the equipment. The hanger (4) is horizontally slidably installed on the guide rod (29). A plug rod (30) is slidably inserted into the top of the hanger (4). A positioning sleeve (31) is fixedly connected to the outer wall of the gear hobbing unit (3). The end of the plug rod (30) is inserted into the positioning sleeve (31).

9. A cylindrical gear processing equipment according to claim 3, characterized in that, The exhaust end of the horizontal pipe (7) is threadedly connected to a collection bucket (14), and the air inlet end of the horizontal pipe (7) is clamped to a sieve plate (15). Both the sieve plate (15) and the collection bucket (14) are provided with ventilation holes (17). A method for machining cylindrical gears, characterized in that, The cylindrical gear processing equipment according to any one of claims 1-9 includes the following steps: S1. Fix the columnar blank on the chuck (2); S2. Place the pallet (6) against the outer wall of the columnar blank and connect the hanger (4) to the gear hobbing unit (3); S3. The columnar blank is continuously rotated by the chuck (2); S4. Move the gear hobbing machine (3) to complete the tooth groove machining of the columnar blank; S5. The columnar blank is supported and the tooth groove is cleaned by the transmission gear (9) on the outer wall of the horizontal tube (7); S6. Move the gear hobbing unit (3) and the horizontal tube (7) in opposite directions and remove the cylindrical gear from the chuck (2).

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