CN218396141U

CN218396141U - Five-axis non-orthogonal milling head and machine tool

Info

Publication number: CN218396141U
Application number: CN202222804734.8U
Authority: CN
Inventors: 谭勇; 余发国; 苏辉南
Original assignee: Shanghai Nozoli Machine Tools Technology Co Ltd
Current assignee: Shanghai Nozoli Machine Tools Technology Co Ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-01-31
Anticipated expiration: 2032-10-24

Abstract

The utility model provides a five-axis non-orthogonal milling head and a machine tool, which comprises a main shaft, a motor, a saddle, a base body, a main shaft seat and a mandrel; the saddle is tightly connected with the spindle seat through the substrate, and the spindle is arranged at one end of the spindle seat far away from the saddle; the mandrel is arranged in the saddle and is fixedly connected with the base body; the rear end of the mandrel is connected with a bearing, and the front end of the mandrel is provided with an angle encoder; the motor comprises a permanent magnet torque motor, a stator of the motor is arranged on the saddle, and a rotor of the motor is arranged on the mandrel; and the saddle is provided with a cable distributing plate and an air and liquid distributing plate. The utility model adopts the permanent magnet torque motor, has no reverse clearance, is magnetically driven, has no abrasion problem, is beneficial to realizing the requirement of five-axis linkage machining and is beneficial to long-term precision retentivity; by adopting the bearing with high rigidity and stability, a stable foundation is provided for the rotation of the milling head.

Description

Five-axis non-orthogonal milling head and machine tool

Technical Field

The utility model relates to a lathe technical field specifically, relates to a five-axis non-orthogonal cutter head and lathe.

Background

The milling head is arranged on the milling machine and connected with the main shaft, and one of machine tool accessories for driving the milling cutter to rotate is an important component of the machine tool accessory. The axis of the main shaft of the numerical control vertical milling machine is vertical to the horizontal plane, and the milling machine accounts for most of the numerical control milling machines and has the widest application range. At present, three-coordinate numerical control vertical milling machines account for most of numerical control milling machines and can generally carry out three-axis linkage machining. The axis of the main shaft of the horizontal numerical control milling machine is parallel to the horizontal plane. In order to expand the processing range and expand the functions, the horizontal numerically controlled milling machine usually adopts a mode of adding a numerically controlled turntable or a universal numerically controlled turntable to realize four-axis and five-axis linkage processing. Therefore, the continuous rotary contour of the side surface of the workpiece can be machined, and the machining position of the part, namely a station, can be changed through the rotary table in one clamping process, so that the machining of a plurality of positions or working surfaces can be carried out. The main shaft of the numerical control milling machine such as a conversion milling machine can be converted, vertical processing and horizontal processing can be carried out on the same numerical control milling machine, and the numerical control milling machine has the functions of the vertical and horizontal numerical control milling machines.

The prior chinese patent publication No. CN205414518U discloses a numerical control five-axis milling head, which includes a B axis and a C axis, wherein: the shaft B is arranged at the lower end part of the shaft C; the B axle includes B axle servo motor, B axle worm wheel, B axle casing, electric main shaft, wherein: the B-axis servo motor is directly connected with a B-axis worm in a transmission mode, the B-axis worm is matched with a B-axis worm wheel, the B-axis worm wheel is connected with the electric spindle in a transmission mode, and the B-axis worm wheel drives the electric spindle to rotate on the B axis.

The inventor thinks that the five-axis functional part milling head in the prior art adopts the transmission of a worm gear, a worm and a roller cam, and belongs to a mechanical transmission mode, wherein firstly, the mechanical transmission has reverse clearance, the reverse clearance is not easy to process, and the final five-axis linkage processing requirement cannot be met; and secondly, the mechanical transmission is long, abrasion can occur, and the long-term precision retentivity is not facilitated. Accordingly, there is a need to provide a five-axis non-orthogonal milling head that does not have backlash, and does not have wear problems.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a five-axis non-orthogonal cutter head and lathe.

According to the utility model provides a pair of five non-orthogonal cutter heads, include: the device comprises a main shaft, a motor, a saddle, a base body, a main shaft seat and a mandrel; the saddle is tightly connected with the spindle seat through the substrate, and the spindle is arranged at one end of the spindle seat far away from the saddle; the mandrel is arranged inside the saddle and is fixedly connected with the base body; the rear end of the mandrel is connected with a bearing, and the front end of the mandrel is provided with an angle encoder; the motor comprises a permanent magnet torque motor, a stator of the motor is arranged on the saddle, and a rotor of the motor is arranged on the mandrel; and the saddle is provided with a cable distributing plate and an air and liquid distributing plate.

Preferably, the base body is provided with a shaft hole, and the mandrel penetrates through the shaft hole to be connected with the spindle seat (9).

Preferably, the verticality of the shaft hole of the spindle seat for installing the spindle and the joint surface of the spindle hole and the spindle seat is 0.01mm.

Preferably, the rotation angle is-30 ° +180 °.

Preferably, a spindle head cover is mounted on the spindle base.

Preferably, a dust cover is installed at the top of the saddle.

Preferably, the concentricity of the mandrel and the angle encoder is less than or equal to 0.01mm.

Preferably, the concentricity of the mandrel and the bearing is less than or equal to 0.005mm.

According to the utility model provides a pair of lathe adopts foretell five-axis non-orthogonal cutter head.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model adopts the motor, has no reverse clearance, is magnetically driven, has no abrasion problem, is beneficial to realizing the requirement of five-axis linkage machining and is beneficial to long-term precision maintenance; by adopting the bearing with high rigidity and stability, a stable foundation is provided for the rotation of the milling head.

2. The utility model discloses a motor is permanent magnetism torque motor, and its stator is installed on the saddle, the rotor is installed at the dabber, and the dabber is connected with base member, saddle spindle drum, helps providing power for five non-orthogonal cutter heads at vertical 0 and horizontal 90 conversion between for maximum rotation range minus 30- + 180.

3. The utility model discloses an adopt cable wire separating disc, gas, liquid wire separating disc to fix on the saddle, concentrate the switching to five non-orthogonal cutter head cables, gas circuit, oil circuit, be favorable to avoiding the triaxial to produce the winding at five non-orthogonal cutter head rotations, if five non-orthogonal cutter heads need overhaul after sale simultaneously, need not take the cable of complete machine to the electricity cabinet out, only need disassemble in cable wire separating disc, gas, liquid wire separating disc department, can dismantle whole five non-orthogonal cutter heads and keep in repair.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a cross-sectional view of the five-axis non-orthogonal milling head of the present invention;

fig. 2 is a schematic view of the five-axis non-orthogonal milling head according to the present invention;

fig. 3 is a schematic view of the present invention mainly embodying the rotation of a five-axis non-orthogonal milling head;

fig. 4 is a schematic view of the spindle base according to the present invention.

Reference numerals are as follows:

main shaft 1, main shaft head cover 2 and motor 3

Dustproof cover 4 angle encoder 5 saddle 6

Bearing 7 base body 8 spindle seat 9

Mandrel 10 cable distributing board 11 gas and liquid distributing board 12

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. All of which belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 and 2, according to the utility model provides a five-axis non-orthogonal milling head, include: the device comprises a main shaft 1, a motor 3, a saddle 6, a base body 8, a main shaft seat 9 and a mandrel 10; the saddle 6 is tightly connected with a spindle seat 9 through a base body 8, and the spindle 1 is arranged at one end of the spindle seat 9 far away from the saddle 6; the mandrel 10 is arranged inside the saddle 6 and is fixedly connected with the base body 8; the rear end of the mandrel 10 is connected with a bearing 7, and the front end of the mandrel 10 is provided with an angle encoder 5; the motor 3 comprises a permanent magnet torque motor, a stator of the motor 3 is arranged on the saddle 6, and a rotor of the motor 3 is arranged on the mandrel 10; the saddle 6 is provided with a cable distributing plate 11 and an air and liquid distributing plate 12.

The saddle 6 is a main body, and the adopted material is QT500-7. The spindle seat 9 and the saddle 6 are connected through the base body 8 and are fixedly locked together by screws. The top of the saddle 6 is provided with a dust cover 4.

The main shaft 1 is arranged on the main shaft seat 9, and the verticality of the joint surface between the shaft hole of the main shaft 1 arranged on the main shaft seat 9 and the main shaft seat is 0.01mm, so that the accuracy of the main shaft arranged on the main shaft 1 is optimal.

The base body 8 is provided with a shaft hole, and the mandrel 10 penetrates through the shaft hole to be connected with the spindle seat 9. The spindle head cover 2 is arranged on the spindle seat 9, and plays a role in protecting a spindle gas circuit, an oil circuit and a cable in rotation and also plays a role in sealing.

The rear end of the mandrel 10 is fixedly locked and connected with a bearing 7 through a screw, and after the mandrel 10 and the bearing 7 are installed, the concentricity is less than or equal to 0.005mm, so that a stable foundation is provided for the rotation of the milling head. The front end of the mandrel 10 is fixedly locked and provided with an angle encoder 5 through screws, and after the mandrel 10 and the angle encoder 5 are installed, the concentricity is less than or equal to 0.01mm, so that high-precision angle positioning is provided for the rotation of the milling head. By adopting the high rigidity and stability of the bearing 7, the sensitivity of the angle encoder 5, the machining size of the key point control mandrel 10 and the control of the assembly process.

As shown in fig. 3 and 4, the stator of the motor 3 is mounted on the saddle 6, the rotor of the motor 3 is mounted on the mandrel 10, and the rotors are all fixedly locked by screws, so that power is provided for the conversion of the five-axis non-orthogonal milling head between a vertical 0 degree and a horizontal 90 degree, and the maximum rotation range is-30 degrees to +180 degrees.

The saddle 6 is fixedly provided with a cable distributing plate 11 and a gas and liquid distributing plate 12 through screws, concentrated switching is carried out on cables, gas paths and oil paths of the five-axis non-orthogonal milling head, the phenomenon that three axes are wound when the five-axis non-orthogonal milling head rotates is avoided, and meanwhile, if the five-axis non-orthogonal milling head needs to be overhauled after sale, cables from the whole machine to an electric cabinet do not need to be drawn out, and the whole five-axis non-orthogonal milling head can be dismantled for maintenance only by dismantling the cable distributing plate 11 and the gas and liquid distributing plate 12.

The rotation angle of the five-axis non-orthogonal milling head is-30 degrees to +180 degrees, the motor 3 is a permanent magnet torque motor, and effective five-axis linkage can be realized. The five-axis non-orthogonal milling head mainly has the processing working condition of conversion between a vertical 0-degree state and a horizontal 90-degree state, the processing requirement of 85% of dies in the market is met, and the two axes are both 100mm in the vertical 0-degree state and the horizontal 90-degree state.

This application is through adopting motor 3, does not have reverse clearance, and the magnetic drive, does not have the wearing and tearing problem, helps realizing five-axis linkage processing demands, helps permanent precision retentivity. By adopting the bearing 7 with high rigidity and stability, a stable foundation is provided for the rotation of the milling head, and by adopting the angle encoder 5 with high sensitivity, high-precision angle positioning is provided for the rotation of the milling head.

Example 2

According to the utility model provides a pair of lathe adopts embodiment 1 five non-orthogonal cutter heads, can effectively improve work efficiency.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present application.

The foregoing descriptions have been directed to embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A five-axis non-orthogonal milling head, comprising: the device comprises a main shaft (1), a motor (3), a saddle (6), a base body (8), a main shaft seat (9) and a mandrel (10);

the saddle (6) is tightly connected with the spindle seat (9) through the base body (8), and the spindle (1) is installed at one end, far away from the saddle (6), of the spindle seat (9);

the mandrel (10) is arranged inside the saddle (6) and is fixedly connected with the base body (8);

the rear end of the mandrel (10) is connected with a bearing (7), and the front end of the mandrel (10) is provided with an angle encoder (5);

the motor (3) comprises a permanent magnet torque motor, a stator of the motor (3) is arranged on the saddle (6), and a rotor of the motor (3) is arranged on the mandrel (10);

and a cable distribution board (11) and an air and liquid distribution board (12) are arranged on the saddle (6).

2. The five-axis non-orthogonal milling head according to claim 1, wherein the base body (8) is provided with an axial hole through which the spindle (10) is connected with the spindle stock (9).

3. The five-axis non-orthogonal milling head according to claim 1, wherein the perpendicularity of the shaft hole of the spindle base (9) for mounting the spindle (1) and the joint surface of the shaft hole and the spindle base is 0.01mm.

4. The five-axis non-orthogonal milling head of claim 1, wherein the rotation angle is-30 ° to +180 °.

5. The five-axis non-orthogonal milling head according to claim 1, wherein the spindle head housing (2) is mounted on the spindle base (9).

6. Five-axis non-orthogonal milling head according to claim 1, characterized in that a dust cap (4) is mounted on top of the saddle (6).

7. The five-axis non-orthogonal milling head according to claim 1, characterized in that the concentricity of the spindle (10) and the angle encoder (5) is ≦ 0.01mm.

8. The five-axis non-orthogonal milling head according to claim 1, wherein the concentricity of the spindle (10) and the bearing (7) is less than or equal to 0.005mm.

9. A machine tool employing a five-axis non-orthogonal milling head as claimed in any one of claims 1 to 8.