High-precision gear hobbing device for gearbox gear piece and using method of high-precision gear hobbing device

Abstract

The invention discloses a high-precision gear hobbing device for a gearbox gear piece and a using method. The device comprises a machining table, a supporting frame is fixed to the upper surface of the machining table, and an adjuster is movably connected to the outer side of the supporting frame; a sliding groove is formed in the surface of the machining table, and a sliding block is slidably connected into the sliding groove. A connecting plate is fixed to the top of the sliding block, and a movable box is fixed to the top of the connecting plate. A supporting base is fixed to one side of the movable box, and a three-jaw chuck is fixed to the upper surface of the supporting base. Through the action of the adjuster, the movable shell of the adjuster can move along the supporting frame, and a meshing structure of the main transmission block and the auxiliary transmission block is arranged in the movable shell; when gears with different moduli, helical angles or diameters are machined, the first motor is started to drive the main transmission block to rotate, the auxiliary transmission block drives the hob head to move accurately, tools or special equipment do not need to be replaced frequently, the adaptability of the machining device to the gears with different specifications is greatly improved, and the machining efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the field of gear hobbing, and in particular relates to a high-precision gear hobbing device for a gearbox and a use method thereof. Background Art

[0002] In the field of mechanical transmission, the machining accuracy of gearboxes directly impacts the stability, noise level, and service life of the transmission system. As a key process in gear manufacturing, gear hobbing's machining accuracy and efficiency are crucial to gear quality. Traditional high-precision gear hobbing equipment typically consists of a hob head, a workpiece clamping mechanism, a transmission system, and a machine bed. The tooth profile is produced through the meshing motion of the hob and the gear blank.

[0003] However, existing gear hobbing processing equipment has certain limitations when processing gears of different specifications. For example, the position of the hob and the gear blank is usually fixed or can only be adjusted to a limited extent, resulting in the need to frequently replace tooling or adjust machine tool parameters when processing gears of different modules, helix angles or diameters, or even to replace special equipment. This not only reduces processing efficiency, but also increases production costs, especially when producing small batches and multiple varieties of gears. In addition, the adjustment accuracy of traditional devices is limited by the rigidity of the mechanical structure and the clearance of the transmission system, making it difficult to meet the processing requirements of high-precision gears. At present, some improved gear hobbing equipment uses adjustable hobs or workpiece fixtures, but their adjustment range is limited and the operation is complicated, making it difficult to achieve fast and accurate positioning. Summary of the Invention

[0004] The object of the present invention is to provide a high-precision gear hobbing processing device for gear parts of a transmission. Through the action of an adjuster, a movable shell of the adjuster can move along a support frame, and an engaging structure of a main transmission block and a slave transmission block is provided inside the adjuster. When processing gears of different modules, helix angles or diameters, the main transmission block is driven to rotate by starting a first motor, so that the slave transmission block drives the hob to move accurately, without the need for frequent replacement of tooling or special equipment. This greatly enhances the adaptability of the processing device to gears of different specifications, improves processing efficiency, and solves the problems of limited adjustment range, complex operation, and difficulty in achieving fast and accurate positioning.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a high-precision gear hobbing processing device for a gearbox, comprising a processing table, a support frame fixed to the upper surface of the processing table, and an adjuster movably connected to the outer side of the support frame;

[0007] A slide groove is provided on the surface of the processing table, and a slider is slidably connected inside the slide groove;

[0008] A connecting plate is fixed on the top of the slider, and a movable box is fixed on the top of the connecting plate;

[0009] A support base is fixed to one side of the movable box, and a three-jaw chuck is fixed to the upper surface of the support base;

[0010] A center rod is fixed in the center of the three-jaw chuck, and a gear blank is sleeved on the outer side of the center rod;

[0011] The regulator includes an adjusting shell, a movable shell is fixed on both sides of the adjusting shell, and a through hole is opened in the center of the movable shell;

[0012] The support frame passes through the through hole;

[0013] A positioning plate is fixed on one side of the movable shell, and a first motor is fixed on one side of the positioning plate;

[0014] The output shaft of the first motor passes through the positioning plate, and one end of the output shaft of the first motor is fixed with a main transmission block;

[0015] The bottom of the movable shell is provided with an adjustment slot, and an adjustment plate is slidably connected to the inside of the adjustment slot;

[0016] A plurality of slave transmission blocks are fixed on the upper surface of the adjustment plate, and the main transmission block is meshedly connected with the slave transmission blocks;

[0017] A slide is fixed to the bottom of the transmission block, and a movable plate is fixed to one side of the slide;

[0018] A hob is fixed on one side of the movable plate.

[0019] Furthermore, a limiting groove is provided on one side of the support frame, and a plurality of first positioning holes are provided inside the limiting groove;

[0020] A second positioning hole is opened on one side of the movable shell.

[0021] Furthermore, a tension spring is fixed to one side of the movable shell, and a handle is fixed to one end of the tension spring;

[0022] A clamping rod is fixed at one end of the handle, the clamping rod passes through the second positioning hole, and one end of the clamping rod is clamped into the first positioning hole.

[0023] Furthermore, the slider is an "I"-shaped structure, and the slider matches the inner wall of the chute;

[0024] A connecting block is fixed at the bottom of the sliding block, and a mounting plate is fixed on one side of the connecting block.

[0025] Furthermore, a hydraulic cylinder is fixed to the bottom of the processing table, and the output shaft of the hydraulic cylinder is fixedly connected to the mounting plate.

[0026] Furthermore, a second motor is fixed inside the movable box, and a threaded rod is fixed to the output shaft of the second motor;

[0027] A first bearing is fixed to one end of the threaded rod away from the second motor, and an outer ring of the first bearing is fixedly connected to the inner wall of the movable box;

[0028] The outer ring of the threaded rod is threadedly connected to a threaded pipe, and the outer ring of the threaded pipe is fixed with a second bearing;

[0029] A sliding plate is fixed to the outer ring of the second bearing, and a movable block is fixed to one side of the sliding plate.

[0030] Furthermore, a reinforcement plate is fixed on one side of the movable block, and an ejector pin is fixed on one side of the reinforcement plate;

[0031] A limiting hole is fixed on one side of the sliding plate, and a limiting rod is fixed on the inner wall of the movable box;

[0032] The limiting rod passes through the limiting hole.

[0033] Furthermore, a first threaded hole is formed at the bottom of the processing table;

[0034] The bottom of the processing table is connected to a fixing plate by bolts, and a second threaded hole is opened on the surface of the fixing plate;

[0035] A dust collecting box is fixed on one side of the fixing plate.

[0036] Furthermore, a method for using a high-precision gear hobbing processing device for a gearbox of the present invention comprises the following steps:

[0037] SS01 connects the fixing plate to the processing table through the bolts at the bottom of the processing table, installs the dust box in place to collect the debris generated during the processing, loosens the handle to disengage the clamping rod from the first positioning hole, and adjusts the position of the regulator by pulling the handle. After the adjustment is completed, loosen the handle and use the tension spring to re-engage the clamping rod into the corresponding first positioning hole to perform preliminary positioning of the regulator.

[0038] SS02 activates the hydraulic cylinder, pushing the mounting plate, which drives the slider to slide in the slide, thereby adjusting the horizontal position of the movable box, support base, three-jaw chuck, and gear blank to achieve the appropriate processing position; the gear blank is sleeved onto the center rod and clamped with the three-jaw chuck to complete the clamping of the gear blank. The second motor in the movable box is activated to drive the threaded rod to rotate, causing the threaded tube and the connected sliding plate, movable block, and ejector to move. The ejector presses the gear blank tightly, further fixing the gear blank and improving processing stability.

[0039] SS03 starts the first motor, and the main transmission block rotates with the output shaft of the first motor. The slave transmission block engaged with the main transmission block drives the slide plate, the movable plate and the hob to move in the adjustment groove, and accurately adjusts the position of the hob to make it in the appropriate processing position relationship with the gear blank;

[0040] After SS04 confirms that the gear blank is firmly clamped and the hob head is in the correct position, it starts the power mechanism connected to the hob head, and the hob starts to rotate to perform gear hobbing on the gear blank. During the processing, the hob head and gear blank positions can be fine-tuned according to the actual situation through the above-mentioned adjustment methods to ensure processing accuracy.

[0041] After SS05 machining is complete, shut down the relevant power mechanisms, stop the hob and gear blank from rotating, loosen the three-jaw chuck, remove the machined gear, clean the dust box of debris, and clean and maintain the machining unit in preparation for the next machining cycle.

[0042] The present invention has the following beneficial effects:

[0043] 1. The present invention utilizes the action of an adjuster, wherein the movable housing of the adjuster can move along the support frame, and an engaging structure of a main transmission block and a slave transmission block is provided inside the adjuster. When machining gears of different modules, helix angles, or diameters, the main transmission block is driven to rotate by starting the first motor, so that the slave transmission block drives the hob to move precisely. This eliminates the need for frequent replacement of tooling or special equipment, greatly enhancing the adaptability of the machining device to gears of different specifications and improving machining efficiency.

[0044] 2. The present invention uses the dust box to collect a large amount of debris during the gear hobbing process, and the dust box can collect these debris in time to prevent them from being scattered on the processing table and the surrounding environment, keeping the working area clean and tidy, and providing good environmental conditions for subsequent processing operations; the dust box collects the debris in a centralized manner, which is convenient for unified cleaning and processing, and there is no need for processing personnel to frequently clean up the debris everywhere during the processing, saving time and energy and improving work efficiency.

[0045] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0047] Figure 1 The figure is a schematic structural diagram of a high-precision gear hobbing processing device for a gearbox of the present invention.

[0048] Figure 2 It is a schematic diagram of the structure of the present invention when viewed from above.

[0049] Figure 3 It is a schematic diagram of the bottom structure of the processing table of the present invention.

[0050] Figure 4 It is a schematic diagram of the internal structure of the movable box of the present invention.

[0051] Figure 5 It is a schematic diagram of the side view structure of the present invention.

[0052] Figure 6 For the present invention Figure 5 A partial enlarged view of point A in the middle.

[0053] Figure 7 This is a schematic diagram of the connecting plate structure of the present invention.

[0054] Figure 8 It is a schematic diagram of the sliding plate structure of the present invention.

[0055] Figure 9 It is a schematic diagram of the structure of the dust collecting box of the present invention.

[0056] Figure 10 Schematic diagram of the structure of the regulator of the present invention.

[0057] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0058] 1-processing table, 2-support frame, 3-adjuster, 4-slide, 5-slider, 6-connecting plate, 7-movable box, 8-support base, 9-three-jaw chuck, 10-center rod, 11-tooth blank, 12-adjusting shell, 13-moving shell, 14-through hole, 15-positioning plate, 16-first motor, 17-main transmission block, 18-adjusting slot, 19-adjusting plate, 20-slave transmission block, 21-slide plate, 22-moving plate, 23-hob holder, 24-limiting slot, 25-first A positioning hole, 26-a second positioning hole, 27-a tension spring, 28-a handle, 29-a clamping rod, 30-a connecting block, 31-a mounting plate, 32-a hydraulic cylinder, 33-a second motor, 34-a threaded rod, 35-a first bearing, 36-a threaded tube, 37-a second bearing, 38-a sliding plate, 39-a movable block, 40-a reinforcement plate, 41-a thimble, 42-a limiting hole, 43-a limiting rod, 44-a first threaded hole, 45-a fixing plate, 46-a second threaded hole, 47-a dust collection box. DETAILED DESCRIPTION

[0059] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0060] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0061] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention. Specific embodiment 1

[0063] See also Figure 1-10 The present invention is a high-precision gear hobbing processing device for a gearbox, comprising a processing table 1, a support frame 2 being fixed on the upper surface of the processing table 1, and an adjuster 3 being movably connected to the outer side of the support frame 2; a slide groove 4 being opened on the surface of the processing table 1, and a slider 5 being slidably connected inside the slide groove 4; a connecting plate 6 being fixed on the top of the slider 5, and a movable box 7 being fixed on the top of the connecting plate 6; a supporting base 8 being fixed on one side of the movable box 7, and a three-jaw chuck 9 being fixed on the upper surface of the supporting base 8; a center rod 10 being fixed in the center of the three-jaw chuck 9, and a gear blank 11 being sleeved on the outer side of the center rod 10; the adjuster 3 comprising an adjusting shell 12, and movable shells 13 being fixed on both sides of the adjusting shell 12, and the movable shell 1 A through hole 14 is formed in the center of the movable housing 13; the support frame 2 passes through the through hole 14; a positioning plate 15 is fixed to one side of the movable housing 13, and a first motor 16 is fixed to one side of the positioning plate 15; the output shaft of the first motor 16 passes through the positioning plate 15, and a main transmission block 17 is fixed to one end of the output shaft of the first motor 16; an adjustment groove 18 is formed at the bottom of the movable housing 13, and an adjustment plate 19 is slidably connected inside the adjustment groove 18; a plurality of slave transmission blocks 20 are fixed to the upper surface of the adjustment plate 19, and the main transmission blocks 17 and the slave transmission blocks 20 are meshedly connected; a slide plate 21 is fixed to the bottom of the slave transmission blocks 20, and a movable plate 22 is fixed to one side of the slide plate 21; and a hob 23 is fixed to one side of the movable plate 22.

[0064] Specifically, a limiting groove 24 is formed on one side of the support frame 2 , and a plurality of first positioning holes 25 are formed inside the limiting groove 24 ; and a second positioning hole 26 is formed on one side of the movable shell 13 .

[0065] Furthermore, a tension spring 27 is fixed to one side of the movable shell 13 , and a handle 28 is fixed to one end of the tension spring 27 ; a clamping rod 29 is fixed to one end of the handle 28 , and the clamping rod 29 passes through the second positioning hole 26 , and one end of the clamping rod 29 is clamped into the first positioning hole 25 .

[0066] The operation process of this embodiment is as follows: the fixing plate 45 is connected to the processing table 1 by the bolts at the bottom of the processing table 1, and the dust box 47 is installed in place to collect debris generated during the processing. The handle 28 is loosened to disengage the clamping rod 29 from the first positioning hole 25. The position of the regulator 3 is adjusted by pulling the handle 28. After the adjustment is completed, the handle 28 is loosened, and the clamping rod 29 is re-engaged in the corresponding first positioning hole 25 by using the tension spring 27 to preliminarily position the regulator 3; the first motor 16 is started, and the main transmission block 17 rotates with the output shaft of the first motor 16. The slave transmission block 20 engaged with the main transmission block 17 drives the slide plate 21, the movable plate 22 and the hob 23 to move in the adjustment groove 18, and the position of the hob 23 is accurately adjusted so that it is in a suitable processing position relationship with the gear blank 11. ; After confirming that the gear blank 11 is firmly clamped and the position of the hob frame 23 is adjusted to the right position, the power mechanism connected to the hob frame 23 is started, the hob starts to rotate, and the gear blank 11 is hobbed. During the processing, the position of the hob frame 23 and the gear blank 11 can be fine-tuned according to the actual situation through the above-mentioned adjustment method to ensure the processing accuracy; the movable shell 13 of the regulator 3 can move along the support frame 2, and a meshing structure of the main transmission block 17 and the slave transmission block 20 is provided inside; when processing gears with different modules, helix angles or diameters, the main transmission block 17 is driven to rotate by starting the first motor 16, so that the slave transmission block 20 drives the hob frame 23 to move accurately, without the need for frequent replacement of tooling or special equipment, which greatly enhances the adaptability of the processing device to gears of different specifications and improves the processing efficiency. Specific embodiment 2

[0068] See also Figure 7-9 On the basis of the specific embodiment 1, the slider 5 is an "I"-shaped structure, and the slider 5 matches the inner wall of the slide 4; a connecting block 30 is fixed to the bottom of the slider 5, and a mounting plate 31 is fixed to one side of the connecting block 30.

[0069] Specifically, a hydraulic cylinder 32 is fixed to the bottom of the processing table 1 , and an output shaft of the hydraulic cylinder 32 is fixedly connected to the mounting plate 31 .

[0070] Furthermore, a first threaded hole 44 is formed at the bottom of the processing table 1 ; a fixing plate 45 is connected to the bottom of the processing table 1 by bolts, and a second threaded hole 46 is formed on the surface of the fixing plate 45 ; a dust box 47 is fixed to one side of the fixing plate 45 .

[0071] The operation process of this embodiment is as follows: after the processing is completed, the relevant power mechanism is turned off, the rotation of the hob and the gear blank 11 are stopped. The three-jaw chuck 9 is loosened, the processed gear is removed, the debris in the dust box 47 is cleaned, and the processing device is cleaned and maintained in preparation for the next processing. The gear hobbing process generates a large amount of debris. The dust box 47 can collect this debris in time to prevent it from being scattered on the processing table 1 and the surrounding environment, keeping the work area clean and tidy, and providing good environmental conditions for subsequent processing operations. The dust box 47 collects the debris in a centralized manner, facilitating unified cleaning and processing, eliminating the need for processing personnel to frequently clean up debris from various locations during the processing process, saving time and energy and improving work efficiency. Specific embodiment three

[0073] See also Figure 1-7 On the basis of the first and second specific embodiments, a second motor 33 is fixed inside the movable box 7, and a threaded rod 34 is fixed to the output shaft of the second motor 33; a first bearing 35 is fixed to the end of the threaded rod 34 away from the second motor 33, and the outer ring of the first bearing 35 is fixedly connected to the inner wall of the movable box 7; a threaded tube 36 is threadedly connected to the outer ring of the threaded rod 34, and a second bearing 37 is fixed to the outer ring of the threaded tube 36; a sliding plate 38 is fixed to the outer ring of the second bearing 37, and a movable block 39 is fixed to one side of the sliding plate 38.

[0074] Specifically, a reinforcing plate 40 is fixed on one side of the movable block 39 , and a thimble 41 is fixed on one side of the reinforcing plate 40 ; a limiting hole 42 is fixed on one side of the sliding plate 38 , and a limiting rod 43 is fixed on the inner wall of the movable box 7 ; the limiting rod 43 passes through the limiting hole 42 .

[0075] The operation process of this embodiment is as follows: start the hydraulic cylinder 32, push the mounting plate 31, drive the slider 5 to slide in the slide groove 4, and then adjust the horizontal positions of the movable box 7, the support base 8, the three-jaw chuck 9 and the gear blank 11 to make it reach a suitable processing position; sleeve the gear blank 11 on the center rod 10, use the three-jaw chuck 9 to clamp the gear blank 11, complete the clamping of the gear blank 11, start the second motor 33 in the movable box 7, drive the threaded rod 34 to rotate, and move the threaded tube 36 and the sliding plate 38, movable block 39 and ejector pin 41 connected thereto, and the ejector pin 41 presses the gear blank 11 tightly, further fixing the gear blank 11 and improving the processing stability.

[0076] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0077] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-precision gear hobbing device for a gearbox, comprising a processing table (1), characterized in that: A support frame (2) is fixed on the upper surface of the processing table (1), and an adjuster (3) is movably connected to the outer side of the support frame (2); A slide groove (4) is provided on the surface of the processing table (1), and a slider (5) is slidably connected inside the slide groove (4); A connecting plate (6) is fixed on the top of the slider (5), and a movable box (7) is fixed on the top of the connecting plate (6); A support base (8) is fixed to one side of the movable box (7), and a three-jaw chuck (9) is fixed to the upper surface of the support base (8); A center rod (10) is fixed in the center of the three-jaw chuck (9), and a tooth blank (11) is sleeved on the outer side of the center rod (10); The regulator (3) comprises an adjusting shell (12), a movable shell (13) is fixed on both sides of the adjusting shell (12), and a through hole (14) is opened in the center of the movable shell (13); The support frame (2) passes through the through hole (14); A positioning plate (15) is fixed on one side of the movable shell (13), and a first motor (16) is fixed on one side of the positioning plate (15); The output shaft of the first motor (16) passes through the positioning plate (15), and a main transmission block (17) is fixed to one end of the output shaft of the first motor (16); The bottom of the movable shell (13) is provided with an adjustment groove (18), and an adjustment plate (19) is slidably connected inside the adjustment groove (18); A plurality of slave transmission blocks (20) are fixed on the upper surface of the adjustment plate (19), and the main transmission block (17) and the slave transmission blocks (20) are meshedly connected; A slide plate (21) is fixed to the bottom of the slave transmission block (20), and a movable plate (22) is fixed to one side of the slide plate (21); A hob (23) is fixed on one side of the movable plate (22).

2. A high-precision gear hobbing device for a gearbox according to claim 1, characterized in that: A limiting groove (24) is provided on one side of the support frame (2), and a plurality of first positioning holes (25) are provided inside the limiting groove (24); A second positioning hole (26) is formed on one side of the movable shell (13).

3. The high-precision gear hobbing device for a gearbox according to claim 2, characterized in that: A tension spring (27) is fixed to one side of the movable shell (13), and a handle (28) is fixed to one end of the tension spring (27); A clamping rod (29) is fixed to one end of the handle (28), the clamping rod (29) passes through the second positioning hole (26), and one end of the clamping rod (29) is clamped into the first positioning hole (25).

4. The high-precision gear hobbing device for a gearbox according to claim 1, characterized in that: The slider (5) is an "I"-shaped structure, and the slider (5) matches the inner wall of the chute (4); A connecting block (30) is fixed to the bottom of the sliding block (5), and a mounting plate (31) is fixed to one side of the connecting block (30).

5. The high-precision gear hobbing device for a gearbox according to claim 1, characterized in that: A hydraulic cylinder (32) is fixed to the bottom of the processing table (1), and an output shaft of the hydraulic cylinder (32) is fixedly connected to the mounting plate (31).

6. The high-precision gear hobbing device for a gearbox according to claim 1, characterized in that: A second motor (33) is fixed inside the movable box (7), and a threaded rod (34) is fixed to the output shaft of the second motor (33); A first bearing (35) is fixed to one end of the threaded rod (34) away from the second motor (33), and the outer ring of the first bearing (35) is fixedly connected to the inner wall of the movable box (7); The outer ring of the threaded rod (34) is threadedly connected to a threaded tube (36), and the outer ring of the threaded tube (36) is fixed with a second bearing (37); A sliding plate (38) is fixed to the outer ring of the second bearing (37), and a movable block (39) is fixed to one side of the sliding plate (38).

7. The high-precision gear hobbing device for a gearbox according to claim 6, characterized in that: A reinforcing plate (40) is fixed on one side of the movable block (39), and a thimble (41) is fixed on one side of the reinforcing plate (40); A limiting hole (42) is fixed on one side of the sliding plate (38), and a limiting rod (43) is fixed on the inner wall of the movable box (7); The limiting rod (43) passes through the limiting hole (42).

8. The high-precision gear hobbing device for a gearbox according to claim 1, characterized in that: A first threaded hole (44) is formed at the bottom of the processing table (1); The bottom of the processing table (1) is connected to a fixing plate (45) by bolts, and a second threaded hole (46) is opened on the surface of the fixing plate (45); A dust collecting box (47) is fixed to one side of the fixing plate (45).

9. A method for using a high-precision gear hobbing device for a gearbox according to any one of claims 1 to 8, characterized in that: The following steps are involved: SS01 connects the fixing plate (45) to the processing table (1) through the bolts at the bottom of the processing table (1), installs the dust box (47) in place to collect the debris generated during the processing, loosens the handle (28), and separates the clamping rod (29) from the first positioning hole (25). The position of the regulator (3) is adjusted by pulling the handle (28). After the adjustment is completed, the handle (28) is loosened, and the clamping rod (29) is re-engaged in the corresponding first positioning hole (25) by using the tension spring (27) to perform preliminary positioning of the regulator (3); SS02 starts the hydraulic cylinder (32), pushes the mounting plate (31), drives the slider (5) to slide in the slide groove (4), and then adjusts the horizontal position of the movable box (7), the support base (8), the three-jaw chuck (9) and the tooth blank (11) to reach a suitable processing position; the tooth blank (11) is sleeved on the center rod (10), and the three-jaw chuck (9) is used to clamp the tooth blank (11) to complete the clamping of the tooth blank (11), and the second motor (33) in the movable box (7) is started to drive the threaded rod (34) to rotate, so that the threaded tube (36) and the sliding plate (38), movable block (39) and ejector pin (41) connected thereto move, and the ejector pin (41) presses the tooth blank (11) to further fix the tooth blank (11) and improve the processing stability; SS03 starts the first motor (16), the main transmission block (17) rotates along with the output shaft of the first motor (16), and the slave transmission block (20) engaged with the main transmission block (17) drives the slide plate (21), the movable plate (22) and the hob (23) to move in the adjustment groove (18), and accurately adjusts the position of the hob (23) so that it is in a suitable processing position relationship with the gear blank (11); After SS04 confirms that the gear blank (11) is firmly clamped and the hob (23) is adjusted to the right position, the power mechanism connected to the hob (23) is started, the hob starts to rotate, and the gear blank (11) is hobbed. During the processing, the position of the hob (23) and the gear blank (11) can be fine-tuned by the above-mentioned adjustment method according to actual conditions to ensure processing accuracy; After SS05 processing is completed, the relevant power mechanism is turned off, the rotation of the hob and the gear blank (11) are stopped. The three-jaw chuck (9) is loosened, the processed gear is removed, the debris in the dust box (47) is cleaned, and the processing device is cleaned and maintained to prepare for the next processing.

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