CN115837582A - Composite machining method of numerically controlled lathe and shaft parts - Google Patents

Abstract

The invention discloses a numerical control lathe and a shaft part combined machining method, which comprises a lathe bed, wherein the lathe bed is provided with an inclined lathe working surface, one side above the lathe bed is connected with a chuck assembly, a first moving seat is arranged above the lathe working surface through the output end of a first linear reciprocating motion mechanism relative to the transverse direction of the lathe bed, and a turret tool assembly is arranged at the output end of a second linear reciprocating motion mechanism arranged above the first moving seat in the longitudinal direction; in addition, a shaft part composite processing method is also disclosed, a through special-shaped groove is formed on the surface of a part through the laser component, the processing efficiency is higher, and especially for small-size through special-shaped grooves.

Description

Composite machining method of numerically controlled lathe and shaft parts

technical field

The invention belongs to the technical field of lathes, and in particular relates to a numerically controlled lathe and a compound processing method for shaft parts.

Background technique

Composite processing is one of the most popular processing technologies in the world in the field of mechanical processing, and it is an advanced manufacturing technology. Composite processing is to realize several different processing technologies on one machine tool. Composite machining is the most widely used and most difficult, that is, turning and milling composite machining. The turning and milling compound machining center is equivalent to a combination of a CNC lathe and a machining center. Turning and milling compound machine tool is the fastest growing and most widely used CNC equipment among compound processing machine tools. The compounding of machine tools is one of the important directions in the development of machine tools. The purpose of the compound machine tool is to make a machine tool multi-functional, which can complete multiple tasks in one clamping, and improve processing efficiency and processing accuracy. However, in the actual use of the turning-milling compound machine tool, the movement of the cutter head is inconvenient, and it is impossible to quickly complete the turning-milling switch. In addition, its processing efficiency is low, which cannot meet the production of mass parts.

In order to solve the deficiencies in the prior art, people have carried out long-term exploration and proposed various solutions. For example, the Chinese patent literature discloses a turn-milling compound machining center structure with a spindle with Y-axis function [201921421806.2], which includes a bed, a Y-axis column, a Y-axis carriage, a servo-powered turret, an X-axis drive motor, a Z Shaft drive motor and Z-axis lead screw. The above solution solves the problem of low production efficiency of turning and milling to a certain extent, but there are still many deficiencies in this solution, such as the inconvenient switching of turning and milling working modes.

In addition, the application number is 202021772176.6, a turning-milling compound machine tool, which solves the problem of inconvenient switching between turning and milling work. It includes a machine base, a machine bed is arranged obliquely above the machine bed, and a processing chuck is connected to the upper side of the machine bed. The top of the machine bed is equipped with a moving seat through the first guide rail mechanism extending in the transverse direction relative to the machine bed, and the tower knife supporting plate is installed above the moving seat through the second guide rail mechanism extending in the longitudinal direction relative to the machine bed. The driving motor base is fixed above, the side of the driving motor base opposite to the processing chuck is installed with a tool holder mounting plate, the other side of the driving motor base is equipped with a power motor, and the first driven tool base and/or For the second powered tool holder, the tool installation head of the first powered tool holder is perpendicular to the central axis of the tool holder installation disk, and the tool installation head of the second powered tool holder is parallel to the central axis of the tool holder installation disk. The invention has the advantages of high processing efficiency, convenient switching between turning and milling, and the like.

For the shaft part 60 shown in Figure 4 of the accompanying drawings of this application, it needs to process the shaft surface 61, and process some grooves 62 on the shaft part 60, and it is necessary to process a special-shaped groove 63 on the shaft surface. The machining of the surface 61 and the groove 62 is comparatively easy, but for the special-shaped groove 63 of the curved surface, the compound machine tool in the above-mentioned prior art can only process such a feature by coordinating the rotation of the main shaft through the compound milling power head, but this This kind of processing should consider the speed and feed of the tool, especially for the processing of small special-shaped grooves 63, larger tools cannot be used, and the feed rate of small tools should not be too fast, which leads to low processing efficiency in this way. For mass production, it is impossible to reduce the processing cost of parts more effectively.

Contents of the invention

The purpose of the present invention is to provide a numerically controlled lathe and a composite machining method for shaft parts, which is intended to solve the technical problems existing in the background technology.

For solving the problems of the technologies described above, the purpose of the present invention is achieved in that:

A numerically controlled lathe, comprising a machine bed, the machine bed is provided with an inclined machine tool working surface, a chuck assembly is connected to the upper side of the machine tool bed, and the upper side of the machine tool working surface passes through the first The output end of a reciprocating linear motion mechanism is equipped with a first moving seat, and the output end of a second linear reciprocating motion mechanism arranged in the longitudinal direction above the first moving seat is equipped with a tower knife assembly; The output end of the third reciprocating linear motion mechanism in the transverse direction of the working surface of the machine tool is equipped with a second mounting base, and the output end of the fourth linear reciprocating motion mechanism vertically arranged above the second mounting base is equipped with a laser assembly. The light emitting surface is perpendicular to the axis of the processing chuck.

On the basis of the above solution and as a preferred solution of the above solution: a pulley drive machine for driving the processing chuck to rotate is installed on one side of the machine tool base.

On the basis of the above scheme and as a preferred scheme of the above scheme: the output end of the fifth linear reciprocating mechanism extending relative to the machine bed above the machine bed is equipped with a tailstock mounting seat, and the tailstock A tailstock opposite to the processing chuck is installed on the mounting base.

On the basis of the above scheme and as a preferred scheme of the above scheme: the first reciprocating linear motion mechanism, the second linear reciprocating motion mechanism, the third reciprocating linear motion mechanism, the fourth linear reciprocating motion mechanism and Each of the fifth linear reciprocating mechanisms includes a servo motor and a ball screw assembly.

On the basis of the above solution and as a preferred solution of the above solution: the output end of the fourth linear reciprocating mechanism is fixed with a laser fixing seat, and the laser component is installed on the laser fixing seat.

On the basis of the above solution and as a preferred solution of the above solution: the laser fixing base is provided with a rotation mechanism, the laser assembly is fixed at the output end of the rotation mechanism, the rotation axis of the rotation mechanism is in line with the The axes of the processing chuck are parallel; the rotation mechanism drives the laser assembly to rotate so that the light emitting surface of the laser assembly rotates relative to the rotation axis of the rotation mechanism.

On the basis of the above solution and as a preferred solution of the above solution: the laser fixing base is provided with a rotation mechanism, the laser assembly is fixed at the output end of the rotation mechanism, the rotation axis of the rotation mechanism is in line with the The machining chuck axis is vertical.

Also disclosed is a compound processing method for shaft parts. The above-mentioned numerical control lathe performs compound processing of shaft parts and special-shaped through grooves on the shaft surface, including the following steps, S1: blank preparation and CNC lathe preparation; S2: loading the blank Clamped on the processing chuck 21; S3: CNC lathe startup, including the chuck drive motor 22 startup, the first reciprocating linear motion mechanism 41, and the second linear reciprocating motion mechanism 42 drive the tower knife assembly 43 to act according to the preset program, and the tower knife The component 43 operates to rough the blank; S4: The chuck drive motor 22, the third reciprocating linear motion mechanism 51, the fourth linear reciprocating mechanism 52 and the laser component 53 operate according to the preset instructions to process the through special-shaped groove 63.

On the basis of the above scheme and as a preferred scheme of the above scheme: between the steps S3-S4 or after the step S4, the chuck drive motor 22 is started, the first reciprocating linear motion mechanism 41, and the second linear reciprocating motion mechanism 42 are driven. The tower knife assembly 43 operates according to the preset program, and the tower knife assembly 43 operates to finish the blank.

In addition, the present application also discloses a compound machining method for shaft parts, which uses the above-mentioned CNC lathe to carry out compound processing for shaft parts and special-shaped through grooves on the shaft surface, which is characterized in that it includes the following steps, S1: blank preparation and CNC lathe preparation; S2: Clamp the blank on the processing chuck 21; S3: Start the CNC lathe, including the chuck driving motor 22 starting, the first reciprocating linear motion mechanism 41, and the second linear reciprocating motion mechanism 42 driving the tower knife assembly 43 acts according to the preset program, the tower knife assembly 43 acts to rough the blank; S4: the chuck drive motor 22, the third reciprocating linear motion mechanism 51, the fourth linear reciprocating motion mechanism 52 and the laser assembly 53 follow the preset instructions Step S4 also includes the step of driving the laser assembly 53 to rotate by the rotating mechanism 56 according to preset instructions to change the angle between the emitted light of the laser assembly 53 and the axis of the processing chuck 21 .

Compared with the prior art, the present invention has outstanding and beneficial technical effects: the application sets up the laser assembly, and drives the laser assembly through the third reciprocating linear motion mechanism and the fourth linear reciprocating motion mechanism to realize the formation of the surface of the part according to the laser cutting process. Through special-shaped slots, the processing efficiency is higher than that of traditional milling, especially for small-sized through-shaped slots, it is better than milling; in addition, by setting the rotary mechanism between the third reciprocating linear motion mechanism and the first On the basis of the freedom of movement of the four-linear reciprocating mechanism, the degree of freedom of rotation of the laser assembly is realized, so that the outgoing light of the laser assembly forms an angle with the axis of the processing chuck, and thus cooperates with turning and milling to process shaft parts. In addition to various structures, it can also realize one-time processing of bevels during the processing and cutting process, thus solving the problem that it is difficult to process bevels at one time in the traditional turning-milling compound.

Description of drawings

Fig. 1 is a three-dimensional schematic view of the overall structure of the present invention;

Fig. 2 is another perspective schematic diagram of the overall structure of the present invention;

Fig. 3 is the overall structure front view of the present invention;

Fig. 4 is the sample structural representation of processing;

Fig. 5 is a structural schematic diagram of a rotating mechanism;

Fig. 6 is a schematic diagram of the action of the second embodiment;

Fig. 7 is a schematic diagram of the action of the third embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments. Obviously, the described embodiments are only a part of the application Examples, not all examples. Based on the given embodiments, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, It is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed, or operate in a particular orientation, and thus should not be construed as limiting the application.

In the description of the present application, the terms "first", "second" and so on are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.

Embodiment one

A numerical control lathe, comprising a machine bed 10, the machine bed 10 is provided with an inclined machine tool working surface 11, a chuck assembly 20 is connected to one side above the machine bed 10, and the chuck assembly includes a processing chuck 21 and a chuck drive The motor 22 drives the processing chuck 21 to rotate through a belt transmission mode, and the first moving seat 44 is installed on the output end of the first reciprocating linear motion mechanism 41 relative to the lateral direction of the machine bed 10 above the machine tool working surface 11. The tower knife assembly 43 is installed at the output end of the second linear reciprocating mechanism 42 arranged in the longitudinal direction above the seat 44, and the tower knife assembly 43 is driven to reciprocate relative to the axial direction of the parallel processing chuck 20 by the first reciprocating linear motion mechanism 41. The reciprocating mechanism 42 drives the tower knife assembly 43 to reciprocate along the direction parallel to the inclined working surface 11 of the machine tool, thereby cooperating with the rotation of the processing chuck 20 to realize the processing of parts; The output end of the third reciprocating linear motion mechanism 51 in the direction of The plane is perpendicular to the axis of the machining chuck 20 . Specifically, a pulley driver 22 that drives the processing chuck 20 to rotate is installed on one side of the machine tool base 10, and is installed on the output end of the fifth linear reciprocating mechanism 32 extending in the transverse direction relative to the machine bed 10 above the machine bed 10. There is a tailstock mounting seat 33, and a tailstock 31 opposite to the processing chuck 21 is installed on the tailstock mounting seat 33, and the fifth linear reciprocating mechanism 32 drives the tailstock mounting seat 33 together with the tailstock 31 to move relative to the processing chuck 21 , to change the relative distance between the two, so as to better fit the parts to be clamped. In this embodiment, it is preferable that the first reciprocating linear motion mechanism 41, the second linear reciprocating motion mechanism 42, the third reciprocating linear motion mechanism 51, the fourth linear reciprocating motion mechanism 52 and the fifth linear reciprocating motion mechanism 32 all include servo motors and ball wires. Rod assembly, so as to cooperate with the controller to realize high-precision automatic control. A laser fixing seat 55 is fixed at the output end of the fourth linear reciprocating mechanism 52, and the laser assembly 53 is installed on the laser fixing seat 55, thereby realizing the The horizontal and vertical movement of the laser assembly 53 along the working surface 11 of the machine tool and the rotation of the machining chuck can realize the machining of the special-shaped groove 63 through the shaft part 60 .

In addition, this embodiment also discloses a compound machining method for shaft parts, which uses the above-mentioned numerical control lathe to carry out compound machining of shaft parts and special-shaped through grooves on the shaft surface, specifically including the following steps, S1: blank preparation and numerical control lathe Preparation, the preparation of the blank includes preparations such as cutting the raw material to a fixed length, and the preparation of the CNC lathe includes selecting the corresponding processing tool according to the processing technology and installing it on the tower knife assembly 42, and inputting preset corresponding processing instructions to the CNC machine tool; S2: The worker or manipulator clamps the blank on the processing chuck 21, and the processing chuck 21 clamps the blank; S3: The CNC lathe starts, including the chuck drive motor 22 starting, the first reciprocating linear motion mechanism 41, and the second linear reciprocating motion The mechanism 42 drives the tower knife assembly 43 to act according to the preset program, and the tower knife assembly 43 acts to rough the blank. The rough machining includes removing part of the material from the surface of the blank according to the material removal method, so as to reserve sufficient machining allowance; S4: The chuck driving motor 22 , the third reciprocating linear motion mechanism 51 , the fourth linear reciprocating motion mechanism 52 and the laser assembly 53 operate according to preset instructions, and process the through special-shaped groove 63 . It is further preferred that between steps S3-S4, the chuck drive motor 22 is started, the first reciprocating linear motion mechanism 41, and the second linear reciprocating motion mechanism 42 drive the tower knife assembly 43 to act according to a preset program, and the tower knife assembly 43 acts. The step of finishing the blank makes it possible to directly obtain the external dimensions of the shaft parts after finishing, and then cut through the special-shaped groove 63 by the laser assembly 53 . Of course, considering that for some thicker shaft parts, burrs will appear at the cutting place during the laser cutting process, for this reason, the preferred step S4 of this embodiment also includes the start of the chuck drive motor 22 and the first reciprocating linear motion mechanism. 41. The second linear reciprocating mechanism 42 drives the tower knife assembly 43 to act according to the preset program, and the tower knife assembly 43 moves to perform the step of finishing the blank, so that the burrs generated during the laser cutting process can be removed during the finishing process. Removed in order to ensure the surface quality of shaft parts.

Embodiment two

On the basis of Embodiment 1, in this embodiment, a rotating mechanism 56 is provided on the laser fixing seat 55, and the laser assembly 53 is fixed on the output end of the rotating mechanism 56. Parallel; the rotation mechanism 56 drives the laser assembly 53 to rotate so that the light-emitting surface of the laser assembly 53 rotates relative to the axis of rotation of the rotation mechanism 56, as shown in Figure 6, the rotation mechanism 56 includes a first servo motor and a reduction mechanism, the first laser assembly 53 Fixed on the rotary shaft of the deceleration mechanism, the rotary axis of the deceleration mechanism is parallel to the axis of the processing chuck 20; the first rotary servo motor 561 drives the laser assembly 53 to rotate around the first rotary axis 561a of the rotary mechanism 56, so that the laser assembly 53 The angle of the outgoing line is inclined to set the angle, so as to achieve laser cutting at the same time, so that when the through special-shaped groove 63 is cut, the edge of the through special-shaped groove 63 parallel to the axis of the processing chuck is cut at one time. The traditional compound turning and milling through the milling cutter of the tower cutter assembly 43 requires multiple millings to process this structural feature, which has the problems of low efficiency and large tool loss. In this embodiment, on the basis of Embodiment 1, step S4 further includes that the rotation mechanism 56 drives the laser assembly 53 to rotate relative to the rotation axis of the rotation mechanism 56 according to preset instructions, and changes the output light of the laser assembly 53 and the axis of the processing chuck 21. The step of including an angle, thereby cutting out the through special-shaped groove 63 at the same time, so that the edge of the through special-shaped groove 63 parallel to the axis of the processing chuck is cut into a bevel at one time.

Embodiment three

On the basis of Embodiment 1, in this embodiment, the laser fixing seat 55 is preferably provided with a rotation mechanism 56, the laser assembly 53 is fixed on the output end of the rotation mechanism 56, and the second rotation axis 561b of the rotation mechanism 56 is in contact with the processing chuck 20. The axis is vertical; specifically, the laser fixing seat 55 is provided with a rotation mechanism 56, the rotation mechanism 56 includes a second rotation servo motor 562 and a deceleration assembly, and the laser assembly 53 is fixed at the output end of the rotation mechanism 56. In the initial state, the rotation mechanism 56 The rotation axis of the laser assembly is perpendicular to the axis of the processing chuck 20. After the rotation, the laser assembly 53 forms an inclination angle with the axis of the processing chuck 20 and the fourth linear reciprocating mechanism 52, so that the edge of the cut surface passing through the remaining edge of the special-shaped groove 63 once The bevel can be cut out in a timely manner, thereby avoiding the problems of low efficiency and large tool loss in the traditional compound turning and milling through the milling cutter of the tower cutter assembly 43 that needs to be milled multiple times to process this structural feature. In this embodiment, on the basis of Embodiment 1, step S4 further includes that the rotation mechanism 56 drives the laser assembly 53 to rotate relative to the rotation axis of the rotation mechanism 56 according to preset instructions, and changes the output light of the laser assembly 53 and the axis of the processing chuck 21. The step of including an angle, thereby cutting out the through special-shaped groove 63 at the same time, so that the edge of the through special-shaped groove 63 parallel to the axis of the processing chuck is cut into a bevel at one time.

Embodiment four

In combination with Embodiment 2 and Embodiment 3, the rotation mechanism 56 drives the laser assembly 53 to rotate around the rotation axis 561a of the rotation mechanism 56, so that the output light of the laser assembly 53 is tilted to a set angle, and the rotation mechanism 56 is also provided to drive the laser assembly 53 to rotate around the axis 561a of the rotation mechanism 56. Its rotation axis 561b rotates; specifically, the rotating mechanism 56 has two degrees of freedom of rotation, wherein the first rotating servo motor 561 is fixed at the output end of the reduction mechanism matched with the second rotating servo motor 562, and the laser assembly 53 is fixed It is arranged at the output end of the deceleration and deceleration assembly matched with the first rotation servo motor 561, thus, the rotation of the first rotation servo motor 562 drives the first rotation servo motor 561 to rotate around the second rotation axis 561b, and the first rotation servo motor 561 Drive the laser assembly 53 to rotate around the first rotation axis 561a, thus, through the feeding of the third reciprocating linear motion mechanism 51 and the fourth linear reciprocating motion mechanism 52, the rotation of the processing chuck and the first rotation servo motor 561 and the second rotation servo motor 561 are coordinated. The rotation of the two-rotation servo motor 562 realizes that on the basis of the through-shaped groove at the processing part, it can also realize the through-through special-shaped groove edge at the processing part to obtain the required slope or curved surface and transition surface at various angles, replacing the traditional turning and milling The problems of high tool loss, low efficiency and difficult processing of some heterogeneous structural features exist in compound machining. In this embodiment, on the basis of Embodiment 1, step S4 further includes that the rotation mechanism 56 drives the laser assembly 53 to rotate relative to the rotation axis of the rotation mechanism 56 according to preset instructions, and changes the output light of the laser assembly 53 and the axis of the processing chuck 21. The step of the included angle, thus while cutting the through special-shaped groove 63, the edge of the through special-shaped groove 63 parallel to the axis of the processing chuck is cut out of the inclined plane and the curved surface at one time, thereby greatly improving the processing range of the CNC machine tool of the present application. It solves the disadvantages of traditional turning and milling compound lathes.

The foregoing embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made according to the structures, shapes and principles of the present invention shall be covered by the protection of the present invention. within range.

Claims (10)

1. A numerically controlled lathe is characterized in that: the automatic lathe comprises a lathe bed (10), wherein an inclined lathe working surface (11) is arranged on the lathe bed (10), a chuck assembly (20) is connected to one side above the lathe bed (10), a first moving seat (44) is arranged above the lathe working surface (11) through the output end of a first reciprocating linear motion mechanism (41) relative to the transverse direction of the lathe bed (10), and a turret tool assembly (43) is arranged at the output end of a second linear reciprocating motion mechanism (42) arranged above the first moving seat (44) in the longitudinal direction; the method is characterized in that: lathe working face (11) top is through relative second mount pad (54) are installed to the output of the third reciprocating linear motion mechanism (51) of lathe working face (11) transverse direction, laser subassembly (53) are installed to the output of the fourth reciprocating linear motion mechanism (52) that second mount pad (54) top vertically set up, the play plain noodles of laser subassembly (53) with the axis of processing chuck (20) is perpendicular.

2. The numerically controlled lathe according to claim 1, wherein: and a belt wheel driving machine (22) for driving the machining chuck (20) to rotate is arranged on one side of the machine tool base (10).

3. The numerically controlled lathe according to claim 1, wherein: a tailstock mounting seat (33) is mounted above the machine tool body (10) through an output end of a fifth linear reciprocating mechanism (32) extending in the transverse direction relative to the machine tool body (10), and a tailstock (31) opposite to the machining chuck (21) is mounted on the tailstock mounting seat (33).

4. A numerically controlled lathe as defined in claim 3 wherein: the first linear reciprocating mechanism (41), the second linear reciprocating mechanism (42), the third linear reciprocating mechanism (51), the fourth linear reciprocating mechanism (52) and the fifth linear reciprocating mechanism (32) all comprise servo motors and ball screw assemblies.

5. The numerically controlled lathe according to claim 1, wherein: the output end of the fourth linear reciprocating mechanism (52) is fixedly provided with a laser fixing seat (55), and the laser component (53) is installed on the laser fixing seat (55).

6. The numerically controlled lathe according to claim 5, wherein: a rotating mechanism (56) is arranged on the laser fixing seat (55), the laser component (53) is fixedly arranged at the output end of the rotating mechanism (56), and the rotating axis of the rotating mechanism (56) is parallel to the axis of the processing chuck (20); the rotating mechanism (56) drives the laser assembly (53) to rotate so that the light-emitting surface of the laser assembly (53) rotates relative to the rotating axis of the rotating mechanism (56).

7. The numerically controlled lathe according to claim 5, wherein: the laser fixing seat (55) is provided with a rotating mechanism (56), the laser component (53) is fixedly arranged at the output end of the rotating mechanism (56), and the rotary axis of the rotating mechanism (56) is perpendicular to the axis of the processing chuck (20).

8. A shaft part composite processing method, which uses the numerical control lathe of any one of claims 1 to 5 to carry out composite processing on a shaft part and a special-shaped through groove on the shaft surface, and is characterized in that: comprises the following steps of (a) carrying out,

s1: preparing a blank and preparing a numerical control lathe;

s2: clamping the blank on a machining chuck (21);

s3: starting the numerical control lathe, wherein the starting of the chuck driving motor (22), the first linear reciprocating motion mechanism (41) and the second linear reciprocating motion mechanism (42) drive the turret tool assembly (43) to act according to a preset program, and the turret tool assembly (43) acts to perform rough machining on a blank;

s4: the chuck driving motor (22), the third reciprocating linear motion mechanism (51), the fourth linear reciprocating motion mechanism (52) and the laser assembly (53) act according to preset instructions to machine a through special-shaped groove (63).

9. The shaft part composite machining method according to claim 9, characterized in that: and (3) starting a chuck driving motor (22), driving a turret tool assembly (43) to act according to a preset program by a first linear reciprocating mechanism (41) and a second linear reciprocating mechanism (42) and finishing the blank by the action of the turret tool assembly (43) between the steps S3 and S4 or after the step S4.

10. A shaft part composite processing method, which uses the numerical control lathe of any one of claims 6 to 7 to carry out composite processing on a shaft part and a special-shaped through groove on the shaft surface, and is characterized in that: comprises the following steps of (a) carrying out,

s1: preparing a blank and preparing a numerical control lathe;

s2: clamping the blank on a machining chuck (21);

s3: starting the numerical control lathe, wherein the starting of the chuck driving motor (22), the first linear reciprocating motion mechanism (41) and the second linear reciprocating motion mechanism (42) drive the turret tool assembly (43) to act according to a preset program, and the turret tool assembly (43) acts to perform rough machining on a blank;

s4: the chuck driving motor (22), the third reciprocating linear motion mechanism (51), the fourth reciprocating linear motion mechanism (52) and the laser assembly (53) act according to preset instructions to machine a through irregular groove (63);

and the step S4 further comprises the step that the rotating mechanism (56) drives the laser assembly (53) to rotate according to a preset instruction so as to change an included angle between the emergent ray of the laser assembly (53) and the axis of the machining chuck (21).

Images