Tooth turning machining device and tooth turning machining method

Abstract

The invention relates to the technical field of gear machining, in particular to a gear turning device and a gear turning method. The device comprises a base, a deflection driving assembly, a first rotation driving assembly, a second rotation driving assembly, an X-axis driving assembly, a Y-axis driving assembly and a Z-axis driving assembly. The method comprises the steps that the X-axis driving assembly and the Y-axis driving assembly are started to be combined to adjust a workpiece till the machining face of the workpiece is attached to a tooth turning tool; a deflection driving assembly is started, and the deflection driving assembly drives a second rotary driving assembly to drive the tooth turning tool to deflect; the first rotary driving assembly and the second rotary driving assembly are started to link the workpiece to rotate and link the tooth turning tool to rotate; and meanwhile, the Z-axis driving assembly is started to be sequentially linked with the deflection driving assembly and the second rotation driving assembly to drive the tooth turning tool to complete full-tooth-width machining of the workpiece at the axial feeding speed. Machining of various types of gears can be achieved, and the machining efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of gear processing, and in particular to a gear processing device and a gear processing method. Background Art

[0002] Gear transmission is widely used in various mechanical equipment because of its high transmission efficiency, compact structure, long life, stable transmission ratio and strong load-bearing capacity. At present, the processing methods of gears can be divided into two categories according to the principle of tooth profile formation: forming method and development method. Forming methods include milling, tooth pulling, punching, forming grinding and die casting. Among them, milling belongs to intermittent cutting, and the processing efficiency is not high; tooth pulling is used to process internal and external gears. Although it has high processing efficiency, it has low processing accuracy, high tool manufacturing and grinding costs, serious environmental pollution and high energy consumption. Development methods include hobbing, gear shaping, gear shaving and development method grinding. Among them, gear hobbing is the most widely used and is a gear processing method with high production efficiency, but gear hobbing is generally suitable for external gear processing; gear shaping is the most commonly used method for processing internal gears. Since there is no cutting process in the return stroke during the cutting process, it is an idle stroke, so the gear shaping processing efficiency is low. For the processing of internal gears, the most commonly used existing processing methods are gear shaping and gear pulling. However, both processing methods have certain defects and cannot meet the processing requirements of some special structure gears, such as non-through and non-retracting groove internal gears.

[0003] Gear turning, also known as skiving, tooth cutting or strong skiving, is a spatial development process based on the meshing principle of staggered helical gears. During processing, the center axis of the gear turning tool and the center axis of the workpiece are spatially non-planar straight lines, and the two rotate at a certain ratio of speeds and perform forced meshing motion. The workpiece material is removed by the relative speed of the gear turning tool along the tooth direction and the tooth profile direction. Gear turning has the following advantages: Gear turning is suitable for the processing of internal and external gears, but is usually used in the processing of internal gears; the speed of the gear turning tool can reach thousands of revolutions during gear turning, and there is no idle stroke during the processing process, so its processing efficiency is 2-8 times that of gear shaping; the processing accuracy can reach level 7 or higher; it can significantly reduce the processing cost of a single gear.

[0004] Therefore, it is necessary to develop a gear machining device and a gear machining method to solve the problem that the existing gear machining method cannot meet the machining requirements of some special structure gears and has low machining efficiency. Summary of the invention

[0005] The object of the present invention is to provide a gear machining device and a gear machining method, and the specific technical scheme is as follows:

[0006] In a first aspect, the present invention provides a gear cutting processing device, comprising a base and a deflection drive assembly, a first rotation drive assembly, a second rotation drive assembly, an X-axis drive assembly, a Y-axis drive assembly and a Z-axis drive assembly arranged on the base; a fixture for clamping a workpiece is arranged on the base, and the fixture is arranged on the output end of the first rotation drive assembly; the second rotation drive assembly is arranged above the fixture, and its output end is connected to a gear cutting tool, and is used to drive the gear cutting tool to rotate along the processing surface of the workpiece; the output end of the deflection drive assembly is connected to the second rotation drive assembly;

[0007] A three-dimensional coordinate system XYZ is established with the center of the workpiece as the coordinate origin, wherein the X-axis direction and the Y-axis direction are respectively arranged on the plane where the workpiece is located, and the Z-axis direction is arranged along a direction parallel to the central axis of the workpiece; the X-axis driving assembly is arranged parallel to the X-axis direction and is connected to the bottom of the first rotation driving assembly; the Y-axis driving assembly is arranged parallel to the Y-axis direction and is connected to the X-axis driving assembly; the Z-axis driving assembly is arranged parallel to the Z-axis direction and is connected to the deflection driving assembly.

[0008] Optionally, the first rotation drive assembly includes a first rotation drive member, whose output end is connected to the fixture; the second rotation drive assembly includes a second rotation drive member, whose output end is connected to the gear cutting tool; the deflection drive assembly includes a deflection drive member, whose output end is connected to the second rotation drive member.

[0009] Optionally, the Y-axis driving assembly includes a Y-axis driving member, a Y-axis screw rod and a first plate; the Y-axis screw rod is arranged parallel to the Y-axis direction, and its two ends are rotatably connected to the base respectively; the output end of the Y-axis driving member is connected to the Y-axis screw rod; an internal threaded through hole adapted to the external thread of the Y-axis screw rod is arranged on the first plate, and the two are threadedly connected;

[0010] The X-axis driving assembly is arranged on the first plate, and includes an X-axis driving member, an X-axis screw rod and a second plate; the X-axis screw rod is arranged parallel to the X-axis direction, and its two ends are rotatably connected to the first plate respectively; the output end of the X-axis driving member is connected to the X-axis screw rod; an internal threaded through hole adapted to the external thread of the X-axis screw rod is arranged on the second plate, and the two are threadedly connected;

[0011] The first rotary driving member is disposed on the second plate;

[0012] The Z-axis driving assembly comprises a Z-axis driving member, a Z-axis screw rod and a third plate; the Z-axis screw rod is arranged parallel to the Z-axis direction, and its two ends are rotatably connected to the base respectively; the output end of the Z-axis driving member is connected to the Z-axis screw rod; an internal threaded through hole adapted to the external thread of the Z-axis screw rod is arranged on the third plate, and the two are threadedly connected;

[0013] The deflection driving member is arranged on the third plate.

[0014] Optionally, the gear machining device further includes a control terminal; the control terminal is respectively connected to the first rotary drive member, the second rotary drive member, the deflection drive member, the X-axial drive member, the Y-axial drive member and the Z-axial drive member.

[0015] Optionally, the control terminal includes a PLC controller.

[0016] In a second aspect, the present invention provides a gear machining method using the gear machining device, comprising:

[0017] Step S1, the terminal control device starts the X-axis drive assembly and the Y-axis drive assembly to adjust the workpiece until its processing surface is in contact with the gear cutting tool;

[0018] Step S2: The terminal control device starts the deflection drive assembly, and the deflection drive assembly drives the second rotation drive assembly to drive the gear cutting tool to deflect relative to the workpiece to the required axis angle β. a ; The axis angle β a is the axial intersection angle between the central axis of the gear cutting tool and the central axis of the workpiece;

[0019] Step S3: The terminal control device starts the first rotation drive assembly and the second rotation drive assembly, respectively driving the workpiece to rotate around its central axis at a first angular velocity ω 1 The gear cutting tool rotates around its central axis at a second angular velocity ω 2 Rotation; at the same time, the terminal control device starts the Z-axis drive assembly and sequentially links the deflection drive assembly and the second rotation drive assembly to drive the gear cutting tool at an axial feed speed v f The full tooth width processing of the workpiece is completed.

[0020] Optionally, in step S1, when the machining surface of the workpiece is fitted with the gear turning tool, the center distance between the center of the workpiece and the center of the gear turning tool is a, which satisfies the following relationship:

[0021] a=r 2 +k·r 1 ;

[0022] Among them, r 1 is the pitch circle radius of the gear cutting tool; r 2 is the pitch circle radius of the workpiece; when an external gear is processed on the workpiece, k=1; when an internal gear is processed on the workpiece, k=-1.

[0023] Optionally, the axis angle β a Satisfies the following relationship:

[0024] If the workpiece is machined with an external gear, then β a =-(β 1 +β 2 ); if the workpiece is processed with an internal gear, then β a =β 1 -β 2 ; Among them, β 1 is the helix angle of the gear cutting tool; β 2 is the helix angle of the gear on the workpiece;

[0025] Taking the center axis of the workpiece as the starting point and looking toward the center axis of the gear cutting tool, if the axis intersection angle β a If the calculated result is greater than zero, the deflection drive assembly drives the gear cutting tool to deflect in the spiral direction of the helix angle of the gear cutting tool to the axis intersection angle β a If the axis angle β a If the calculated result is less than zero, the deflection drive assembly drives the gear cutting tool to deflect in the opposite direction of the helix angle of the gear cutting tool to the axis intersection angle β a If the axis angle β a If the calculated result of is equal to zero, no deflection is required.

[0026] Optionally, the first angular velocity ω 1 , the second angular velocity ω 2 and the axial feed speed v f Satisfies the following relationship:

[0027]

[0028] Among them, z 1 is the number of teeth of the gear cutting tool; 2 is the number of teeth of the workpiece.

[0029] Optionally, the gear cutting method of the gear cutting processing device also includes step S4, after completing the full tooth width processing, the terminal control device stops the operation of the first rotation drive component and the second rotation drive component, and starts the deflection drive component and the Z-axis drive component to link the gear cutting tool to a safe position, and then removes the workpiece.

[0030] The application of the technical solution of the present invention has at least the following beneficial effects:

[0031] (1) The present invention provides a gear cutting processing device that can solve the problem that the existing gear cutting method cannot meet the processing requirements of some special structure gears and has low processing efficiency. Specifically, the present invention starts the X-axis drive assembly and the Y-axis drive assembly to adjust the workpiece until its processing surface fits the gear cutting tool; starts the deflection drive assembly, and the deflection drive assembly drives the second rotation drive assembly to drive the gear cutting tool to deflect relative to the workpiece to the required axis intersection angle β a ; Start the first rotation drive assembly and the second rotation drive assembly, respectively, and link the workpiece around its central axis at a first angular velocity ω 1 The gear cutting tool rotates around its central axis at a second angular velocity ω 2 At the same time, the Z-axis drive assembly is started to sequentially link the deflection drive assembly and the second rotation drive assembly to drive the gear cutting tool at an axial feed speed v f The gear cutting device provided by the present invention can control the gear cutting tool to continuously process, improve the processing accuracy and efficiency, and save time cost; the same gear cutting tool is used on a gear cutting device, and the axis angle β is changed. a It can realize the processing of various types of gears such as spur gears, helical gears, herringbone gears and non-through double gears without undercut grooves, which greatly improves the versatility of the device and reduces production and processing costs.

[0032] (2) The gear cutting method provided by the present invention can also change the center distance a to realize the processing of internal gears and external gears, which is flexible and efficient, and saves production and manufacturing costs. In addition, no coolant is required during the gear cutting process, which is more environmentally friendly and cost-saving.

[0033] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0035] Figure 1 is a schematic structural diagram of a gear turning device in an embodiment;

[0036] Figure 2 yes Figure 1 A rear section perspective view of

[0037] Figure 3 This is a schematic diagram of the structure of the workpiece and the gear cutting tool fitting together ( Figure 3 ω in 1 The direction of the arrow indicates the rotation direction of the workpiece, ω 2 The arrow direction indicates the rotation direction of the gear cutting tool, and the axial feed speed v f The two arrows indicate the axial reciprocating feed direction of the gear cutting tool);

[0038] Figure 4 It is a top view structural diagram of the workpiece and the gear cutting tool fitting together;

[0039] Figure 5 This is a schematic diagram of the structure of the spur gear in the main bearing after gear skiving;

[0040] Figure 6 This is a schematic diagram of the structure of the helical gear inside the main bearing after gear skiving;

[0041] Figure 7 This is a schematic diagram of the structure of the main bearing outer spur gear after gear skiving;

[0042] Figure 8 It is a schematic diagram of the structure of the herringbone gear after gear skiving;

[0043] Fig. 9 It is a structural schematic diagram of a non-through double-linked internal gear without undercut groove after gear skiving;

[0044] Among them, 1. base, 2. deflection drive assembly, 3. first rotation drive assembly, 4. second rotation drive assembly, 5. X-axial drive assembly, 5.1. X-axial screw rod, 5.2. in the second plate, 6. Y-axial drive assembly, 6.1. Y-axial screw rod, 6.2. first plate, 7. Z-axial drive assembly, 7.1. Z-axial screw rod, 7.2. third plate, 8. fixture, 9. gear cutting tool, P, workpiece. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying 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 embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0046] Example:

[0047] See also Figure 1-Figure 4A gear cutting processing device comprises a base 1 and a deflection drive assembly 2, a first rotation drive assembly 3, a second rotation drive assembly 4, an X-axis drive assembly 5, a Y-axis drive assembly 6 and a Z-axis drive assembly 7 arranged on the base 1; a fixture 8 for clamping a workpiece P is arranged on the base 1, and the fixture 8 is arranged on the output end of the first rotation drive assembly 3; the second rotation drive assembly 4 is arranged above the fixture 8, and its output end is connected to a gear cutting tool 9, and is used to drive the gear cutting tool 9 to rotate along the processing surface of the workpiece P; the output end of the deflection drive assembly 2 is connected to the second rotation drive assembly 4;

[0048] A three-dimensional coordinate system XYZ is established with the center of the workpiece P as the coordinate origin, wherein the X-axis direction and the Y-axis direction are respectively arranged on the plane where the workpiece P is located, and the Z-axis direction is arranged along a direction parallel to the central axis of the workpiece P; the X-axis driving assembly 5 is arranged parallel to the X-axis direction and is connected to the bottom of the first rotation driving assembly 3; the Y-axis driving assembly 6 is arranged parallel to the Y-axis direction and is connected to the X-axis driving assembly 5; the Z-axis driving assembly 7 is arranged parallel to the Z-axis direction and is connected to the deflection driving assembly 2.

[0049] The first rotation drive assembly 3 includes a first rotation drive member, whose output end is connected to the clamp 8; the second rotation drive assembly 4 includes a second rotation drive member, whose output end is connected to the gear cutting tool 9; the deflection drive assembly 2 includes a deflection drive member, whose output end is connected to the second rotation drive member.

[0050] The Y-axis driving assembly 6 comprises a Y-axis driving member (not shown in the figure), a Y-axis screw rod 6.1 and a first plate 6.2; the Y-axis screw rod 6.1 is arranged parallel to the Y-axis direction, and its two ends are rotatably connected to the base 1 respectively; the output end of the Y-axis driving member is connected to the Y-axis screw rod 6.1; an internal threaded through hole adapted to the external thread of the Y-axis screw rod 6.1 is arranged on the first plate 6.2, and the two are threadedly connected;

[0051] The X-axis drive assembly 5 is arranged on the first plate 6.2, and includes an X-axis drive member (not shown in the figure), an X-axis screw rod 5.1, and a second plate 5.2; the X-axis screw rod 5.1 is arranged parallel to the X-axis direction, and its two ends are rotatably connected to the first plate 6.2 respectively; the output end of the X-axis drive member is connected to the X-axis screw rod 5.1; an internal threaded through hole adapted to the external thread of the X-axis screw rod 5.1 is arranged on the second plate 5.2, and the two are threadedly connected;

[0052] The first rotary driving member is arranged on the second plate 5.2;

[0053] The Z-axis driving assembly 7 comprises a Z-axis driving member (not shown in the figure), a Z-axis screw rod 7.1 and a third plate 7.2; the Z-axis screw rod 7.1 is arranged parallel to the Z-axis direction, and its two ends are rotatably connected to the base 1 respectively; the output end of the Z-axis driving member is connected to the Z-axis screw rod 7.1; an internal threaded through hole adapted to the external thread of the Z-axis screw rod 7.1 is arranged on the third plate 7.2, and the two are threadedly connected;

[0054] The deflection drive element is arranged on the third plate 7 . 2 .

[0055] The gear cutting processing device also includes a control terminal (not shown in the figure); the control terminal is respectively connected to the first rotary drive member, the second rotary drive member, the deflection drive member, the X-axial drive member, the Y-axial drive member and the Z-axial drive member.

[0056] The control terminal is a PLC controller.

[0057] A gear machining method using the gear machining device comprises:

[0058] Step S1, the terminal control device starts the X-axis drive assembly 5 and the Y-axis drive assembly 6 to adjust the workpiece P until its processing surface fits the gear cutting tool 9;

[0059] Step S2: The terminal control device starts the deflection drive assembly 2, and the deflection drive assembly 2 drives the second rotation drive assembly 4 to drive the gear cutting tool 9 to deflect relative to the workpiece P to the required axis angle β. a ; The axis angle β a is the axial intersection angle between the central axis of the gear cutting tool 9 and the central axis of the workpiece P;

[0060] Step S3: The terminal control device starts the first rotation drive assembly 3 and the second rotation drive assembly 4, respectively driving the workpiece P to rotate around its central axis at a first angular velocity ω 1 The gear cutting tool 9 rotates around its central axis at a second angular velocity ω 2 Rotation; at the same time, the terminal control device starts the Z-axis drive assembly 7 and sequentially links the deflection drive assembly 2 and the second rotation drive assembly 4 to drive the gear cutting tool 9 at an axial feed speed v f Complete the full tooth width processing of the workpiece P;

[0061] Step S4, after completing the full tooth width processing, the terminal control device stops the operation of the first rotation drive component 3 and the second rotation drive component 4, and starts the deflection drive component 2 and the Z-axial drive component 7 to link the gear cutting tool 9 to a safe position, and then removes the workpiece P.

[0062] See also Figure 3-Figure 4 In step S1, when the machining surface of the workpiece P is fitted with the gear turning tool 9, the center distance between the center of the workpiece P and the center of the gear turning tool 9 is a, which satisfies the following relationship:

[0063] a=r 2 +k·r 1 ;

[0064] Among them, r 1 is the pitch circle radius of the gear cutting tool 9; r 2 is the pitch circle radius of the workpiece P; when an external gear is processed on the workpiece P, k=1; when an internal gear is processed on the workpiece P, k=-1.

[0065] The axis angle β a Satisfies the following relationship:

[0066] If the workpiece P and the gear cutting tool 9 rotate in opposite directions when machining an external gear, then β a =-(β 1 +β 2 ); if the workpiece P is used to process an internal gear, the workpiece P and the gear cutting tool 9 have the same rotation direction, then β a =β 1 -β 2 ; Among them, β 1 β is the helix angle of the gear cutting tool 9; 2 is the helix angle of the gear on the workpiece P;

[0067] Taking the center axis of the workpiece P as the starting point and looking toward the center axis of the gear cutting tool 9, if the axis intersection angle β a If the calculated result is greater than zero, the deflection drive assembly 2 drives the gear cutting tool 9 to deflect in the spiral direction of the helix angle of the gear cutting tool 9 to the axis intersection angle β a If the axis angle β a If the calculated result is less than zero, the deflection drive assembly 2 drives the gear cutting tool 9 to deflect in the opposite direction of the helix angle of the gear cutting tool 9 to the axis intersection angle β a If the axis angle β a If the calculated result of is equal to zero, no deflection is required.

[0068] The first angular velocity ω1 , the second angular velocity ω 2 and the axial feed speed v f Satisfies the following relationship:

[0069]

[0070] Among them, z 1 is the number of teeth of the gear cutting tool 9; 2 is the number of teeth of the workpiece P.

[0071] The gear machining method using the gear machining device provided in this embodiment can be used to machine various main bearing gear structures, such as Figure 5 The gear machining parameters of the main bearing inner spur gear shown in FIG. 1 are shown in Table 1. Figure 6 The main bearing internal helical gear shown in the figure has a gear cutting process parameter different from that in Table 1. a =30°, processed β 2 =-10°; Figure 7 The main bearing outer spur gear shown in the figure has a gear machining parameter different from that in Table 1, where the center distance a = 231 mm; Figure 8 The herringbone gear shown in the figure has a different gear machining parameter from that in Table 1. When machining the upper ring gear, the shaft angle β a =30°, processed β 2 =-10°; when machining the lower gear, the shaft angle β a =10°, processed β 2 =10°; Fig. 9 The non-through double internal gear without undercut groove shown in the figure has a gear cutting processing parameter different from that in Table 1. The shaft angle β is a =20°, processed β 2 =0°; when machining the lower gear, the shaft angle β a =10°, processed β 2 =10°.

[0072] Table 1 Gear machining parameters

[0073]

[0074]

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gear cutting device, characterized in that: The invention comprises a base (1) and a deflection drive assembly (2), a first rotation drive assembly (3), a second rotation drive assembly (4), an X-axis drive assembly (5), a Y-axis drive assembly (6) and a Z-axis drive assembly (7) arranged on the base (1); a fixture (8) for clamping a workpiece (P) is arranged on the base (1), and the fixture (8) is arranged on the output end of the first rotation drive assembly (3); the second rotation drive assembly (4) is arranged above the fixture (8), and its output end is connected to a gear cutting tool (9) for driving the gear cutting tool (9) to rotate along the processing surface of the workpiece (P); the output end of the deflection drive assembly (2) is connected to the second rotation drive assembly (4); A three-dimensional coordinate system XYZ is established with the center of the workpiece (P) as the coordinate origin, wherein the X-axis direction and the Y-axis direction are respectively arranged on the plane where the workpiece (P) is located, and the Z-axis direction is arranged along a direction parallel to the central axis of the workpiece (P); the X-axis driving component (5) is arranged parallel to the X-axis direction and is connected to the bottom of the first rotation driving component (3); the Y-axis driving component (6) is arranged parallel to the Y-axis direction and is connected to the X-axis driving component (5); the Z-axis driving component (7) is arranged parallel to the Z-axis direction and is connected to the deflection driving component (2).

2. The gear cutting device according to claim 1, characterized in that: The first rotation drive assembly (3) comprises a first rotation drive member, an output end of which is connected to the fixture (8); the second rotation drive assembly (4) comprises a second rotation drive member, an output end of which is connected to the gear cutting tool (9); the deflection drive assembly (2) comprises a deflection drive member, an output end of which is connected to the second rotation drive member.

3. The gear cutting device according to claim 2, characterized in that: The Y-axial drive assembly (6) comprises a Y-axial drive member, a Y-axial screw rod (6.1) and a first plate (6.2); the Y-axial screw rod (6.1) is arranged parallel to the Y-axis direction, and its two ends are rotatably connected to the base (1); the output end of the Y-axial drive member is connected to the Y-axial screw rod (6.1); an internal threaded through hole adapted to the external thread of the Y-axial screw rod (6.1) is arranged on the first plate (6.2), and the two are threadedly connected; The X-axis driving assembly (5) is arranged on the first plate (6.2), and comprises an X-axis driving member, an X-axis screw rod (5.1) and a second plate (5.2); the X-axis screw rod (5.1) is arranged parallel to the X-axis direction, and its two ends are rotatably connected to the first plate (6.2); the output end of the X-axis driving member is connected to the X-axis screw rod (5.1); an internal threaded through hole adapted to the external thread of the X-axis screw rod (5.1) is arranged on the second plate (5.2), and the two are threadedly connected; The first rotating driving member is arranged on the second plate (5.2); The Z-axis drive assembly (7) comprises a Z-axis drive member, a Z-axis screw rod (7.1) and a third plate (7.2); the Z-axis screw rod (7.1) is arranged parallel to the Z-axis direction, and its two ends are rotatably connected to the base (1); the output end of the Z-axis drive member is connected to the Z-axis screw rod (7.1); a Z-axis screw rod (7.1) is arranged on the third plate (7.2) to be connected to the Z-axis screw rod ( 7.1) with an internal threaded through hole adapted to the external thread, and the two are threadedly connected; The deflection driving member is arranged on the third plate (7.2).

4. The gear cutting device according to claim 3, characterized in that: It also includes a control terminal; the control terminal is connected to the first rotation drive member, the second rotation drive member, the deflection drive member, the X-axis drive member, the Y-axis drive member and the Z-axis drive member respectively.

5. The gear cutting device according to claim 4, characterized in that: The control terminal includes a PLC controller.

6. A gear machining method using the gear machining device according to any one of claims 1 to 5, characterized in that: include: Step S1, the terminal control device starts the X-axis drive assembly (5) and the Y-axis drive assembly (6) to adjust the workpiece (P) until its processing surface is in contact with the gear cutting tool (9); Step S2, the terminal control device starts the deflection drive assembly (2), and the deflection drive assembly (2) drives the second rotation drive assembly (4) to drive the gear cutting tool (9) to deflect relative to the workpiece (P) to a desired axis intersection angle β a ; The axis angle β a is the axial intersection angle between the central axis of the gear cutting tool (9) and the central axis of the workpiece (P); Step S3, the terminal control device starts the first rotation drive assembly (3) and the second rotation drive assembly (4), respectively driving the workpiece (P) to rotate around its central axis at a first angular velocity ω1 and the gear cutting tool (9) to rotate around its central axis at a second angular velocity ω2; at the same time, the terminal control device starts the Z-axis drive assembly (7) to sequentially drive the deflection drive assembly (2) and the second rotation drive assembly (4) to drive the gear cutting tool (9) at an axial feed velocity v f The full tooth width machining of the workpiece (P) is completed.

7. The gear machining method of the gear machining device according to claim 6, characterized in that: In step S1, when the machined surface of the workpiece (P) is fitted with the gear turning tool (9), the center distance between the center of the workpiece (P) and the center of the gear turning tool (9) is a, which satisfies the following relationship: a=r2+k·r1; Wherein, r1 is the pitch circle radius of the gear cutting tool (9); r2 is the pitch circle radius of the workpiece (P); when processing an external gear on the workpiece (P), k=1; when processing an internal gear on the workpiece (P), k=-1.

8. The gear machining method of the gear machining device according to claim 6, characterized in that: The axis angle β a Satisfies the following relationship: If the workpiece (P) is machined with an external gear, then β a =-(β1+β2); if the workpiece (P) is machined with an internal gear, then β a =β1-β2; wherein β1 is the helix angle of the gear cutting tool (9); β2 is the helix angle of the gear on the workpiece (P); Taking the central axis of the workpiece (P) as the starting point and looking toward the central axis of the gear cutting tool (9), if the axis intersection angle β a If the calculated result is greater than zero, the deflection drive assembly (2) drives the gear cutting tool (9) to deflect in the spiral direction of the helix angle of the gear cutting tool (9) to the axis intersection angle β a ; If the axis angle β a The calculated result of is less than zero, then the deflection drive assembly (2) drives the gear cutting tool (9) to deflect in the opposite direction of the helix angle of the gear cutting tool (9) to the axis intersection angle β. a ; If the axis angle β a If the calculated result of is equal to zero, no deflection is required.

9. The gear machining method of the gear machining device according to claim 6, characterized in that: The first angular velocity ω1, the second angular velocity ω2 and the axial feed velocity v f Satisfies the following relationship: Wherein, z1 is the number of teeth of the gear cutting tool (9); and z2 is the number of teeth of the workpiece (P).

10. The gear machining method of the gear machining device according to claim 6, characterized in that: The method further includes step S4, wherein after the full tooth width processing is completed, the terminal control device stops the operation of the first rotary drive component (3) and the second rotary drive component (4), and starts the deflection drive component (2) and the Z-axis drive component (7) to link the gear cutting tool (9) to a safe position, and then removes the workpiece (P).

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