Adjustable gear hobbing equipment for gear machining

Abstract

The invention relates to the technical field of gear hobbing equipment, in particular to adjustable gear hobbing equipment for gear machining, which comprises a gear hobbing cutter, a cutter shaft fixed in the middle of the gear hobbing cutter in a penetrating manner and a machine tool main body for driving the cutter shaft to rotate, a cleaner for removing chippings and spraying cutting oil is arranged below the gear hobbing cutter, one end of the cleaner is connected with a re-controller for driving, and the other end of the cleaner is connected with a gear hobbing machine. According to the gear hobbing cutter cleaning device, chippings attached to a spiral groove seam of the gear hobbing cutter are slightly cleaned through the cleaner below the rotating gear hobbing cutter, the cutting oil can be sprayed while the cleaner cleans the gear hobbing cutter, the cleaning operation of the cleaner can be assisted by spraying the cutting oil, and the cleaning efficiency is improved. And meanwhile, the hobbing cutter is cooled by the cutting oil, the close-distance attached spraying mode of the cutting oil to the hobbing cutter is more accurate in alignment compared with the mode of spraying the cutting oil from top to bottom in the traditional technology, and waste of the cutting oil is avoided while the hobbing cutter is cooled.

Description

Technical Field

[0001] The invention relates to the technical field of gear hobbing equipment, in particular to an adjustable gear hobbing equipment for gear processing. Background Art

[0002] Gear hobbing machines are the most widely used type of gear processing machines. They can cut spur and helical cylindrical gears, as well as worm wheels and sprockets. They use hobs to process spur, helical and herringbone cylindrical gears, as well as worm wheels by the development method. This type of machine can also process workpieces with special tooth shapes such as splines and sprockets when using special hobs.

[0003] The gear hobbing cutter on the gear hobbing machine rotates to vertically impact the horizontally rotating circular workpiece, and then processes the circular workpiece into a gear. Debris is generated during the cutting process. A cutting oil supply mechanism is also installed on the gear hobbing machine to control the cutting oil to spray on the gear hobbing cutter and the workpiece. The cutting oil has the functions of removing debris and cooling. However, the direct spraying method has the problem of waste. In addition, the debris removal is not thorough. The debris may adhere to the spiral groove of the gear hobbing cutter, thereby affecting the subsequent cutting work. Based on the purpose of removing debris in the spiral groove of the gear hobbing cutter and solving the problem of cutting oil waste, the present invention provides an adjustable gear hobbing device for gear processing. Summary of the invention

[0004] The object of the present invention is to provide an adjustable gear hobbing device for gear machining to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable gear hobbing equipment for gear processing, comprising a gear hobbing cutter, a fixed cutter shaft passing through the middle of the gear hobbing cutter, and a machine tool body for driving the cutter shaft to rotate, a cleaner for removing debris and spraying cutting oil is arranged below the gear hobbing cutter, one end of the cleaner is connected to a complex controller for driving, and one side of the cleaner is connected to an oil pipeline for supplying cutting oil, the complex controller comprises a swing-controlled track portion, a translation-controlled conveying portion, a first cross plate with one end connected to the track portion in a transmission manner, and a double-control integration with the other end of the first cross plate for contact transmission, the double-control integration also establishes transmission between the conveying portion and the cutter shaft, the oil pipeline comprises an oil delivery hose with one end fixedly connected to the cleaner, an L-shaped flat tube with the other end of the oil delivery hose fixedly connected, and an L-shaped door column for blocking the L-shaped flat tube channel.

[0006] The L-shaped door post is fixed on the first horizontal plate, and the L-shaped door post slides through the inner hole of the outwardly convex square tube arranged on one side of the L-shaped flat tube and then is inserted into the L-shaped flat tube channel.

[0007] The track portion includes an L-shaped limit frame with one end fixed on the machine tool body, a neck shaft supported by the other end of the L-shaped limit frame, a control T-plate vertically fixed at one end of the neck shaft, and two parallel long rail slide columns vertically fixed on one side of the control T-plate. The other end of the neck shaft is meshed and connected with a row of teeth and grooves opened on the first horizontal plate through a fixed column gear.

[0008] The track portion also includes a re-supporting spring sheet, one end of which is fixed on the L-shaped limit frame, and the other end is fixed on the first transverse plate, and the first transverse plate slides through a square hole provided on the L-shaped limit frame.

[0009] The cleaner includes an oil collecting and distributing tank, two guide cylinders penetrating the oil collecting and distributing tank, a row of prism-shaped bristles fixed on one side of the oil collecting and distributing tank, and a plurality of V-shaped tubes surrounding the row of bristles. The long rail slide column slides through the guide cylinder, the oil collecting and distributing tank is fixedly connected to the oil delivery hose, and one end of the V-shaped tube is fixedly connected to the oil collecting and distributing tank.

[0010] The conveying part includes an L-shaped rack, a travel pinion and a travel shaft. The distribution oil tank is hinged to one end of the L-shaped rack by setting a convex plate. The travel pinion and the L-shaped rack are meshed and transmitted, and a travel shaft is fixed in the middle of the travel pinion. One side of the L-shaped rack slides through the plate hole opened on the L-shaped limit frame through a fixed straight plate, and the travel shaft is movably sleeved in the convex plate through hole set on the L-shaped limit frame.

[0011] The dual-control integration includes a driving shaft with one end fixedly connected to the end of the knife shaft, an oblique shaft with vertical transmission at the other end of the driving shaft, a multi-disc group for transmission on one side of the oblique shaft, an F-type frame for contact transmission with the multi-disc group, a gear group for transmission on one side of the F-type frame, and a lap shaft for transmission between the gear group and the stroke shaft, one end of the lap shaft is meshed and connected with the fixed bevel gear on the stroke shaft through a fixed bevel gear, and the oblique shaft is meshed and connected with the fixed bevel gear on the driving shaft through a fixed bevel gear.

[0012] The multi-disc group includes a multi-moving shaft, a swing control disk fixed at one end of the multi-moving shaft, and a ring plate gear and a cam plate of a fixed sleeve on the multi-moving shaft. The cam plate moves the F-type frame by rotating. The swing control disk includes a disk body and an arc-shaped pad fixed at one end of the disk body. The outer side wall of the swing control disk is in contact with the end of the first horizontal plate. The ring plate gear is meshed with the helical teeth on the oblique moving shaft for transmission connection.

[0013] The gear set includes an integrated column frame fixed on the machine tool body, a center shaft supported on the integrated column frame, and a large travel gear fixed at one end of the center shaft. The multi-moving shaft, the lap shaft and the center shaft are respectively movably sleeved in different through holes opened on the integrated column frame. A partial section at one end of the F-type frame slides through a square hole opened on the integrated column frame. One end of the center shaft is meshed and connected to a row of teeth arranged on the F-type frame through a fixed column gear. The lap shaft is meshed and connected to the large travel gear through a fixed gear. The oblique moving shaft is movably sleeved in a column hole opened on one side of the integrated column frame.

[0014] The gear set also includes a reset spring, which is fixedly sleeved on the middle shaft, and the outer end of the reset spring is fixed on the integrated column frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention uses a cleaner to pass under the rotating gear hobbing cutter to clean the debris attached to the spiral groove of the gear hobbing cutter. The cleaner will also spray cutting oil while cleaning the gear hobbing cutter. Spraying cutting oil can assist the cleaner in cleaning operations. At the same time, the cutting oil cools the gear hobbing cutter. The close-fitting spraying method of the cutting oil on the gear hobbing cutter is more accurately positioned than the traditional technology of spraying cutting oil from top to bottom. It cools the gear hobbing cutter while avoiding the waste of cutting oil.

[0017] 2. The present invention controls the horizontal reciprocating movement of the cleaner by the conveying part, and controls the swing and tilt of the cleaner by the track part. In the upright stage, the cleaner moves in a directional manner, passes under the gear hobbing cutter, and completes a cleaning of the gear hobbing cutter. In the reverse resetting stage, the cleaner swings and tilts, so that the cleaner passes smoothly from the side of the gear hobbing cutter. After the resetting is completed, the cleaner rests for a specified time and then automatically starts the next round of cleaning operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention.

[0019] Figure 2 Schematic diagram of oil pipeline structure.

[0020] Figure 3 This is a schematic diagram of the track structure.

[0021] Figure 4 Schematic diagram of the cleaner structure.

[0022] Figure 5 It is a schematic diagram of the conveying unit structure.

[0023] Figure 6 Schematic diagram of the position of the L-shaped rack.

[0024] Figure 7 It is a schematic diagram of the dual-control integrated structure.

[0025] Figure 8 This is a schematic diagram of the multi-disk group structure.

[0026] Fig. 9 Schematic diagram of the gear set structure.

[0027] Fig.10 This is a schematic diagram of the position of the inclined axis.

[0028] Fig.11 This is a schematic diagram of the F-frame position.

[0029] Fig.12 It is a schematic diagram of the travel gear structure.

[0030] In the figure: gear hobbing cutter 1, cutter shaft 2, machine tool body 3, cleaner 4, complex controller 5, dual control integration 6, track part 7, conveying part 8, first cross plate 9, oil pipeline 10, oil delivery hose 11, L-shaped flat tube 12, L-shaped door column 13, long rail slide column 14, control T plate 15, neck shaft 16, L-shaped limit frame 17, return support spring 18, guide cylinder 19, brush 20, V-shaped tube 21, distribution oil tank 22, L-shaped rack 23, travel pinion 24, travel shaft 25, driving shaft 26, oblique shaft 27, gear set 28, F-shaped frame 29, multi-disc group 30, lap shaft 31, swing control disk 32, multi-moving shaft 33, ring plate gear 34, cam plate 35, travel gear 36, middle shaft 37, reset spring 38, integrated column frame 39. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 12The present invention provides a technical solution: an adjustable gear hobbing device for gear processing, comprising a gear hobbing cutter 1, a fixed cutter shaft 2 passing through the middle of the gear hobbing cutter 1, and a machine tool body 3 for driving the cutter shaft 2 to rotate, a cleaner 4 for removing debris and spraying cutting oil is arranged below the gear hobbing cutter 1, one end of the cleaner 4 is connected to a complex controller 5 for driving, and one side of the cleaner 4 is connected to an oil pipeline 10 for supplying cutting oil, the complex controller 5 comprises a swing-controlled track portion 7, a translation-controlled conveying portion 8, a first horizontal plate 9 with one end connected to the track portion 7 for transmission, and a double-control integration 6 with the other end of the first horizontal plate 9 for contact transmission, the double-control integration 6 also establishes transmission between the conveying portion 8 and the cutter shaft 2, the oil pipeline 10 comprises an oil delivery hose 11 with one end fixedly connected to the cleaner 4, an L-shaped flat tube 12 with the other end of the oil delivery hose 11 fixedly connected, and an L-shaped door column 13 for blocking the channel of the L-shaped flat tube 12.

[0033] refer to Figure 2 It is understood that the L-shaped door post 13 is fixed on the first horizontal plate 9, and the L-shaped door post 13 slides through the inner hole of the convex square tube set on one side of the L-shaped flat tube 12 and then is inserted into the channel of the L-shaped flat tube 12.

[0034] refer to Figure 3 It is understood that the rail part 7 includes an L-shaped limit frame 17 with one end fixed on the machine tool body 3, a neck shaft 16 supported by the other end of the L-shaped limit frame 17, a control T-plate 15 vertically fixed at one end of the neck shaft 16, and two parallel long rail slide columns 14 vertically fixed on one side of the control T-plate 15, the other end of the neck shaft 16 is meshed and connected with a row of teeth and grooves opened on the first cross plate 9 through a fixed column gear, and the neck shaft 16 is movably sleeved in the column hole opened on the L-shaped limit frame 17.

[0035] The track portion 7 further includes a resilient spring 18 , one end of which is fixed to the L-shaped limit frame 17 , and the other end is fixed to the first transverse plate 9 , and the first transverse plate 9 slides through a square hole provided in the L-shaped limit frame 17 .

[0036] refer to Figure 4 It is understood that the cleaner 4 includes an oil collecting and distributing tank 22, two guide cylinders 19 passing through the oil collecting and distributing tank 22, a row of prism-shaped bristles 20 fixed on one side of the oil collecting and distributing tank 22, and a plurality of V-shaped tubes 21 surrounding the row of bristles 20, the long rail slide 14 slides through the guide cylinder 19, the oil collecting and distributing tank 22 is fixedly connected to the oil delivery hose 11, and one end of the V-shaped tube 21 is fixedly connected to the oil collecting and distributing tank 22.

[0037] The machine tool body 3 is the driving part of the gear hobbing machine in the prior art. The driving mechanism in the machine tool controls the rotation of the cutter shaft 2, and then the gear hobbing cutter 1 continuously rotates to cut the workpiece. The cleaner 4 periodically cleans the gear hobbing cutter 1. If the cleaner 4 is in contact with the bottom of the rotating gear hobbing cutter 1 and does not move, the cleaner 4 will inevitably impact and damage the bristles 20. Therefore, the present invention adopts the horizontal wandering mode of the cleaner 4 to clean the spiral groove of the gear hobbing cutter 1 to clean up the hidden and attached debris. Figure 4 The spirally distributed teeth on the gear hob 1 move downward, the cleaner 4 translates from left to right, and then a row of bristles 20 engages with the spiral groove of the gear hob 1, and the cleaner 4 passes smoothly from under the gear hob 1 to achieve the cleaning operation. The teeth on the gear hob 1 will not impact and damage the bristles 20. After the cleaner 4 moves to the right to the head, it translates in the opposite direction. The reverse translation of the cleaner 4 is the reset stage, and the cleaner 4 swings and tilts as a whole, so that the subsequent translation of the cleaner 4 does not contact the bottom of the gear hob 1. The cleaner 4 moves to the head to complete the reset, and then the cleaner 4 rests for a fixed time. Next, the cleaner 4 starts to translate to the right again. At this time, the cleaner 4 resumes its upright state and starts a new round of cleaning operation, and the cycle continues.

[0038] refer to Figure 5 It is understood that the conveying part 8 includes an L-shaped rack 23, a travel pinion 24 and a travel shaft 25. The distribution oil tank 22 is hinged to one end of the L-shaped rack 23 by setting a convex plate. The travel pinion 24 and the L-shaped rack 23 are meshingly connected for transmission, and a travel shaft 25 is fixed to the middle of the travel pinion 24. One side of the L-shaped rack 23 slides through the plate hole opened on the L-shaped limit frame 17 by fixing a straight plate, and the travel shaft 25 is movably sleeved in the convex plate through hole set on the L-shaped limit frame 17.

[0039] The dual-control integration 6 includes a driving shaft 26 with one end fixedly connected to the end of the knife shaft 2, an oblique shaft 27 for vertical transmission at the other end of the driving shaft 26, a multi-disc group 30 for transmission on one side of the oblique shaft 27, an F-type frame 29 for contact transmission with the multi-disc group 30, a gear group 28 for transmission on one side of the F-type frame 29, and a lap shaft 31 for transmission between the gear group 28 and the stroke shaft 25, one end of the lap shaft 31 is meshed and connected to the fixed bevel gear on the stroke shaft 25 through a fixed bevel gear, and the oblique shaft 27 is meshed and connected to the fixed bevel gear on the driving shaft 26 through a fixed bevel gear.

[0040] The multi-disc group 30 includes a multi-movable shaft 33, a swing control disk 32 fixed at one end of the multi-movable shaft 33, and a ring plate gear 34 and a cam plate 35 fixed on the multi-movable shaft 33. The cam plate 35 moves the F-type frame 29 by rotating. The swing control disk 32 includes a disk body and an arc-shaped pad fixed at one end of the disk body, and the outer side wall of the swing control disk 32 is in contact with the end of the first cross plate 9. The ring plate gear 34 is meshed with the helical teeth on the inclined shaft 27 for transmission connection.

[0041] The gear set 28 includes an integrated column frame 39 fixed on the machine tool body 3, a center shaft 37 supported on the integrated column frame 39, and a travel gearwheel 36 fixed at one end of the center shaft 37. The multi-moving shaft 33, the lap shaft 31 and the center shaft 37 are respectively movably sleeved in different through holes opened on the integrated column frame 39. A partial section at one end of the F-type frame 29 slides through the square hole opened on the integrated column frame 39. One end of the center shaft 37 is meshed and connected to a row of teeth set on the F-type frame 29 through a fixed column gear. The lap shaft 31 is meshed and connected to the travel gearwheel 36 through a fixed gear. The oblique moving shaft 27 is movably sleeved in a column hole opened on one side of the integrated column frame 39.

[0042] The gear set 28 further includes a reset spring 38 , which is fixedly sleeved on the middle shaft 37 , and the outer end of the reset spring 38 is fixed on the integrated column frame 39 .

[0043] The present invention controls the swing of the cleaner 4 through the track portion 7, and thus the translation process of the cleaner 4 does not contact the gear hobbing cutter 1. Specifically, the first cross plate 9 translates to drive the neck shaft 16 to rotate, and then drives the long rail slide column 14 to swing through the control T plate 15, thereby controlling the cleaner 4 to complete the swing and tilt. The present invention controls the horizontal reciprocating movement of the cleaner 4 through the conveying portion 8, specifically, the travel shaft 25 rotates to drive the travel pinion 24, and then the L-shaped rack 23 moves horizontally. Here, the horizontal movement and the swing and tilt of the cleaner 4 occur in a regular manner, and this regular regulation comes from the dual control integration 6.

[0044] The knife shaft 2 will drive the driving shaft 26 when rotating at a constant speed, and then the inclined shaft 27 will drive the ring plate gear 34, so that the multi-disk group 30 will rotate synchronously as a whole. When the swing control plate 32 rotates, the arc pad on the swing control plate 32 will push the first horizontal plate 9, and then the track portion 7 will be used to control the cleaner 4 to swing to a vertical state. The vertical cleaner 4 moves under the gear hobbing cutter 1 to clean the gear hobbing cutter 1. At the same time, the movement of the first horizontal plate 9 will drive the L-shaped door column 13, and the L-shaped door column 13 is pulled out of the L-shaped flat tube 12, and the channel inside the L-shaped flat tube 12 is opened. The L-shaped flat tube 12 is connected to the existing technology. The cutting oil supply mechanism in the operation, and then the cutting oil is transported to the oil delivery hose 11 through the L-shaped flat tube 12, and then injected into the distribution oil tank 22, and then sprayed out through a large number of V-shaped tubes 21. The length of the arc pad on the swing control disk 32 is fixed. When the cleaner 4 is transported and separated from the gear hobbing cutter 1, the contact between the arc pad of the swing control disk 32 and the first cross plate 9 ends, and the first cross plate 9 is reset under the rebound control of the return spring 18. The subsequent control transmission of the reverse movement of the first cross plate 9 will cause the cleaner 4 to swing and tilt. At the same time, the L-shaped door column 13 blocks the L-shaped flat tube 12 channel again, and the cleaner 4 stops spraying cutting oil.

[0045] The swing control plate 32 and the cam plate 35 rotate synchronously. The cam plate 35 moves the F-frame 29 once during one rotation, and the F-frame 29 completes a reciprocating motion. Between two adjacent shifts of the cam plate 35 on the F-frame 29, the F-frame 29 has a fixed stage and is stationary. The single reciprocating motion of the F-frame 29 corresponds to the single reciprocating motion of the cleaner 4, and the stationary stage of the F-frame 29 corresponds to the stationary rest stage of the cleaner 4. The specific transmission is: the reciprocating translation of the F-frame 29 drives the median shaft 37 to rotate, and then the travel gear 36 rotates to drive the lap shaft 31 to rotate, and then the travel shaft 25 rotates to drive the travel pinion 24, and the travel pinion 24 rotates to control the horizontal movement of the L-shaped rack 23, and then drives the cleaner 4 to move along.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable gear hobbing device for gear machining, comprising a gear hobbing cutter (1), a cutter shaft (2) passing through the middle of the gear hobbing cutter (1) and fixed therein, and a machine tool body (3) for driving the cutter shaft (2) to rotate, characterized in that: A cleaner (4) for removing debris and spraying cutting oil is arranged below the gear hobbing cutter (1). One end of the cleaner (4) is connected to a multiple controller (5) for driving, and one side of the cleaner (4) is connected to an oil pipeline (10) for supplying cutting oil. The multiple controller (5) includes a track portion (7) for swing control, a conveying portion (8) for translation control, a first horizontal plate (9) with one end connected to the track portion (7) in a transmission manner, and a double-control integration (6) for contact transmission at the other end of the first horizontal plate (9). The double-control integration (6) also establishes transmission between the conveying portion (8) and the cutter shaft (2). The oil pipeline (10) includes an oil delivery hose (11) with one end fixedly connected to the cleaner (4), an L-shaped flat tube (12) with the other end of the oil delivery hose (11) fixedly connected, and an L-shaped door column (13) for blocking the passage of the L-shaped flat tube (12).

2. The adjustable gear hobbing device for gear processing according to claim 1, characterized in that: The L-shaped door post (13) is fixed on the first horizontal plate (9), and the L-shaped door post (13) slides through the inner hole of the outer convex square tube arranged on one side of the L-shaped flat tube (12) and then is inserted into the channel of the L-shaped flat tube (12).

3. The adjustable gear hobbing device for gear processing according to claim 1, characterized in that: The track portion (7) comprises an L-shaped limit frame (17) with one end fixed on the machine tool body (3), a neck shaft (16) supported by the other end of the L-shaped limit frame (17), a control T-plate (15) vertically fixed to one end of the neck shaft (16), and two parallel long rail slide columns (14) vertically fixed to one side of the control T-plate (15), and the other end of the neck shaft (16) is meshed and transmission-connected with a row of tooth grooves provided on the first transverse plate (9) through a fixed column gear.

4. The adjustable gear hobbing device for gear machining according to claim 3, characterized in that: The track portion (7) also includes a re-supporting spring sheet (18), one end of which is fixed on the L-shaped limit frame (17), and the other end of which is fixed on the first transverse plate (9), and the first transverse plate (9) slides through a square hole provided on the L-shaped limit frame (17).

5. The adjustable gear hobbing device for gear machining according to claim 3, characterized in that: The cleaner (4) comprises an oil collecting and distributing tank (22), two guide cylinders (19) passing through the oil collecting and distributing tank (22), a row of prism-shaped bristles (20) fixed on one side of the oil collecting and distributing tank (22), and a plurality of V-shaped tubes (21) surrounding the row of bristles (20); a long rail slide column (14) slides through the guide cylinder (19); the oil collecting and distributing tank (22) and the oil delivery hose (11) are fixedly connected; and one end of the V-shaped tube (21) is fixedly connected to the oil collecting and distributing tank (22).

6. The adjustable gear hobbing device for gear machining according to claim 5, characterized in that: The conveying part (8) comprises an L-shaped rack (23), a travel pinion (24) and a travel shaft (25); a convex plate is arranged on the collecting and distributing oil tank (22) to be hinged with one end of the L-shaped rack (23); the travel pinion (24) and the L-shaped rack (23) are meshed and transmission-connected; a travel shaft (25) is fixed in the middle of the travel pinion (24); one side of the L-shaped rack (23) slides through a plate hole provided on the L-shaped limit frame (17) through a fixed straight plate; and the travel shaft (25) is movably sleeved in a convex plate through hole provided on the L-shaped limit frame (17).

7. The adjustable gear hobbing device for gear machining according to claim 6, characterized in that: The dual-control integration (6) comprises a driving shaft (26) having one end fixedly connected to the end of the cutter shaft (2), an oblique shaft (27) vertically driven at the other end of the driving shaft (26), a multi-disc group (30) driven at one side of the oblique shaft (27), an F-type frame (29) contacting the multi-disc group (30) for transmission, a gear group (28) driven at one side of the F-type frame (29), and a lap shaft (31) for transmission between the gear group (28) and the stroke shaft (25), one end of the lap shaft (31) is meshed and connected to the bevel gear fixed on the stroke shaft (25) through a fixed bevel gear, and the oblique shaft (27) is meshed and connected to the bevel gear fixed on the driving shaft (26) through a fixed bevel gear.

8. The adjustable gear hobbing device for gear machining according to claim 7, characterized in that: The multi-disc group (30) comprises a multi-movable shaft (33), a swing control disc (32) fixed at one end of the multi-movable shaft (33), and a ring plate gear (34) and a cam plate (35) fixed on the multi-movable shaft (33). The cam plate (35) moves the F-type frame (29) by rotating. The swing control disc (32) comprises a disc body and an arc-shaped pad fixed at one end of the disc body. The outer wall of the swing control disc (32) contacts the end of the first horizontal plate (9). The ring plate gear (34) is meshed and driven by the helical teeth on the oblique moving shaft (27).

9. The adjustable gear hobbing device for gear machining according to claim 8, characterized in that: The gear set (28) comprises an integrated column frame (39) fixed on the machine tool body (3), a center shaft (37) supported on the integrated column frame (39), and a travel gear (36) fixed at one end of the center shaft (37); the multi-moving shaft (33), the lap shaft (31) and the center shaft (37) are respectively movably sleeved in different through holes opened on the integrated column frame (39); a partial section at one end of the F-type frame (29) slides through a square hole opened on the integrated column frame (39); one end of the center shaft (37) is meshed and connected to a row of teeth arranged on the F-type frame (29) through a fixed column gear; the lap shaft (31) is meshed and connected to the travel gear (36) through a fixed gear; and the oblique moving shaft (27) is movably sleeved in a column hole opened on one side of the integrated column frame (39).

10. The adjustable gear hobbing device for gear machining according to claim 9, characterized in that: The gear set (28) also includes a reset spring (38), the reset spring (38) is fixedly sleeved on the middle shaft (37), and the outer end of the reset spring (38) is fixed on the integrated column frame (39).

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