CN216178402U

CN216178402U - Lifting straight-swinging type feeding driving structure

Info

Publication number: CN216178402U
Application number: CN202122442492.8U
Authority: CN
Inventors: 胡勇; 卢健强; 胡永; 段权素; 龚伦勇
Original assignee: Shenzhen Ruishuo Technology Co ltd; Guangdong Engineering Polytechnic
Current assignee: Shenzhen Ruishuo Technology Co ltd; Guangdong Engineering Polytechnic
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-04-05
Anticipated expiration: 2031-10-11

Abstract

The utility model discloses a lifting straight-swinging type feed driving structure, which comprises a base and a machining head mounting part, wherein the base is provided with a vertical shaft; the base is connected with a first sliding block and a second sliding block which are arranged in parallel in a sliding mode; the first sliding block and the second sliding block are respectively connected with a first driving device and a second driving device; one end of the second sliding block is hinged to one end of a swing arm, and the other end of the swing arm and one end of the first sliding block are hinged to two ends of the machining head installation portion respectively. The lifting straight-swinging type feed driving structure provided by the utility model can simplify the structure of a part near a processing head, is beneficial to the processing of a workpiece by the processing head from a plurality of angles and has no interference.

Description

Lifting straight-swinging type feeding driving structure

Technical Field

The utility model relates to the field of numerical control machines, in particular to a lifting straight swinging type feeding driving structure.

Background

The multi-axis linkage numerical control machine tool is a machine tool with high technological content and high precision and is specially used for processing complex curved surfaces, and the machine tool system has great influence on the industries of aviation, aerospace, military, scientific research, precision instruments, high-precision medical equipment and the like in one country. In addition, the multi-axis numerical control machine tool can also be used for the engraving and milling process of curved glass. At present, a plurality of multi-axis linkage numerical control machine tools are available, which can realize the linear movement of an X, Y, Z shaft and the axial rotation of A, B, C shaft. However, since the arrangement position of the axial motor such as A, B, C is not reasonable, the distance from the processing head is too close, so that the motor has the risk of interfering with the workpiece when the processing head swings, the processing range is limited, and the processing of complex workpieces is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lifting straight pendulum type feed driving structure, which can simplify the structure of components near a processing head, is beneficial to processing a workpiece from a plurality of angles by the processing head and has no interference.

In order to achieve the purpose, the utility model provides a lifting straight pendulum type feed driving structure, which comprises a base and a processing head mounting part, wherein the base is provided with a base seat; the base is connected with a first sliding block and a second sliding block which are arranged in parallel in a sliding mode; the first sliding block and the second sliding block are respectively connected with a first driving device and a second driving device; one end of the second sliding block is hinged to one end of a swing arm, and the other end of the swing arm and one end of the first sliding block are hinged to two ends of the machining head installation portion respectively.

As a further improvement of the utility model, the processing head mounting part comprises a rotary driving device and a processing head mounting seat which are mutually and rotatably connected, and the swing arm and the first sliding block are respectively hinged with two ends of the rotary driving device.

As a further improvement of the utility model, sliding rail structures are arranged between the base and the first sliding block and between the base and the second sliding block.

As a further improvement of the utility model, the slide rail structure comprises a strip-shaped track and a first slide block which are in sliding fit; the bar track sets up on the base, and first slider setting is on first sliding block and second sliding block.

As a further improvement of the present invention, both the first sliding block and the second sliding block are provided with at least two sliding rail structures; each sliding rail structure of the first sliding block is distributed on at least two non-parallel side surfaces of the first sliding block; and the sliding rail structures of the second sliding block are distributed on at least two non-parallel side surfaces of the second sliding block.

As a further improvement of the present invention, the first driving device includes a first driving motor and a first ball screw, which are linked with each other, the first ball screw is further in threaded fit with a first ball slider, and the first ball slider is disposed on the first sliding block.

As a further improvement of the present invention, the second driving device includes a second driving motor and a second ball screw, which are linked with each other, the second ball screw is further in threaded fit with a second ball slider, and the second ball slider is disposed on the second slider.

As a further improvement of the utility model, grating rulers are arranged between the base and the first sliding block and between the base and the second sliding block.

As a further development of the utility model, an angle encoder is provided between the rotary drive and the machining head mount.

Advantageous effects

Compared with the prior art, the lifting straight pendulum type feed driving structure has the advantages that:

1. when the first driving device and the second driving device drive the first sliding block and the second sliding block to synchronously move in the same direction, the machining head mounting part only makes linear translation, and at the moment, the machining head makes linear feeding motion. When the first driving device and the second driving device are different in driving speed or direction, the first sliding block and the second sliding block can be dislocated, the swing arm is utilized to enable the machining head to swing at a certain angle, and bent or other complex parts on the workpiece can be machined. Because the driving device driving the machining head to swing is far away from the machining head, the machining head is not easy to interfere with a workpiece in the swinging process, and can machine curved surfaces and structures with complex shapes.

2. The processing head installation part comprises a rotary driving device and a processing head installation seat which are connected in a rotating mode, the processing head is installed on the processing head installation seat, the rotary driving device drives the processing head installation part to rotate, and the rotary freedom degree of the processing head is increased.

3. Each slide rail structure of first sliding block distributes on two at least non-parallel sides of first sliding block, is favorable to reducing the shake of first sliding block each direction, and the removal and the processing of processing head are more accurate, are favorable to improving the size precision after the work piece processing.

4. The detection of the movement displacement is realized by a high-precision absolute grating ruler and an angle encoder, and the high-precision control of the displacement is realized.

The utility model will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a lifting straight pendulum type feed driving structure;

FIG. 2 is a perspective view of the lift pendulum feed drive structure with the base removed;

FIG. 3 is a front view of the lift pendulum feed drive configuration with the base removed;

FIG. 4 is a left side view of the lift pendulum feed drive configuration with the base removed;

fig. 5 is a top view of the vertical pendulum feed drive structure with the base removed.

Detailed Description

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Examples

As shown in fig. 1 to 5, the embodiment of the present invention provides a vertical swing type feed driving structure, which includes a base 1 and a processing head mounting portion 7. A first sliding block 2 and a second sliding block 3 which are arranged in parallel are connected on the base 1 in a sliding way. A first drive 6 and a second drive 8 are connected to both the first slider 2 and the second slider 3, respectively. One end of the second sliding block 3 is hinged with one end of a swing arm 4, and the other end of the swing arm 4 is hinged with two ends of the machining head installation part 7 respectively with one end of the first sliding block 2. In this embodiment, the first slider 2 and the second slider 3 both slide up and down with respect to the base 1. The base 1 is a saddle box, the first slide block 2 and the second slide block 3 are arranged on the inner side of the saddle box, and the processing head 5 is exposed from an opening at the lower end of the saddle box.

The processing head mounting section 7 includes a rotation driving device 72 and a processing head mounting base 71 rotatably connected to each other, and the rotation driving device 72 is a rotation motor. The swing arm 4 and the first sliding block 2 are respectively hinged with two ends of the rotary driving device 72. The machining head 5 is mounted on a machining head mount 71 of the machining head mounting portion 7. In this embodiment, the machining head 5 is inserted into a through hole in the middle of the machining head mount 71.

Slide rail structures 9 are arranged between the base 1 and the first sliding block 2 and between the base 1 and the second sliding block 3. In this embodiment, the slide rail structure 9 includes a strip-shaped rail 91 and a first slider 92 which are slidably fitted. The bar-shaped rail 91 is provided on the base 1, and the first slider 92 is provided on the first slider 2 and the second slider 3.

Both the first sliding block 2 and the second sliding block 3 are provided with at least two sliding rail structures 9. The sliding track structures 9 of the first sliding block 2 are distributed on at least two non-parallel side surfaces of the first sliding block 2. The slide rail structures 9 of the second sliding block 3 are distributed on at least two non-parallel side surfaces of the second sliding block 3. In this embodiment, the slide rail structures 9 are located on the side surfaces and the back surfaces of the first slide block 2 and the second slide block 3.

The first driving device 6 comprises a first driving motor 63 and a first ball screw 62 which are linked, a first ball slide block 61 is further in threaded fit with the first ball screw 62, and the first ball slide block 61 is arranged on the first slide block 2. The second driving device 8 comprises a second driving motor 83 and a second ball screw 82 which are linked, a second ball sliding block 81 is further in threaded fit with the second ball screw 82, and the second ball sliding block 81 is arranged on the second sliding block 3. Wherein the first drive motor 63 and the second drive motor 83 are both mounted above the base 1 away from the machining head 5. The first ball screw 62 and the second ball screw 82 are both vertically arranged, and are rotatably connected with the base 1 through bearings.

And grating rulers are arranged between the base 1 and the first sliding block 2 and between the base 1 and the second sliding block 3. An angle encoder is provided between the rotation driving device 72 and the machining head mount 71.

In operation, when the first driving device 6 and the second driving device 8 respectively drive the first slider 2 and the second slider 3 to synchronously move in the same direction, the processing head installation part 7 only makes linear translation, and the processing head 5 makes linear feeding motion. When the driving speeds or directions of the first driving device 6 and the second driving device 8 are different, the first sliding block 2 and the second sliding block 3 can be vertically staggered, and the swing arm 4 is utilized to enable the machining head 1 to swing at a certain angle, so that a bent or other complex part on a workpiece can be machined. Because the driving device driving the processing head 5 to swing is far away from the processing head, the interference between the processing head 5 and a workpiece is not easy to occur in the swinging process, and the curved surface and the structure with a complex shape can be processed. The processing head mounting part 7 comprises a rotation driving device 72 and a processing head mounting seat 71 which are rotatably connected with each other, the processing head 5 is mounted on the processing head mounting seat 71, the rotation driving device 72 drives the processing head mounting part 71 to rotate, the rotation freedom degree of the processing head is increased, and the processing head 5 has two rotation direction freedom degrees.

The present invention has been described in connection with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, and is intended to cover various modifications, equivalent combinations, which are made in accordance with the spirit of the present invention.

Claims

1. A lifting straight pendulum type feed driving structure comprises a base (1) and is characterized by further comprising a processing head installation part (7); a first sliding block (2) and a second sliding block (3) which are arranged in parallel are connected on the base (1) in a sliding way; the first sliding block (2) and the second sliding block (3) are respectively connected with a first driving device (6) and a second driving device (8); one end of the second sliding block (3) is hinged with one end of a swing arm (4), and the other end of the swing arm (4) is hinged with two ends of the machining head installation part (7) respectively with one end of the first sliding block (2).

2. The elevating straight-pendulum type feed driving structure as claimed in claim 1, wherein the processing head mounting part (7) comprises a rotation driving device (72) and a processing head mounting seat (71) which are rotatably connected with each other, and the swing arm (4) and the first slider (2) are respectively hinged with both ends of the rotation driving device (72).

3. The structure of claim 1, wherein a slide rail structure (9) is disposed between the base (1) and the first sliding block (2) and between the base (1) and the second sliding block (3).

4. A lifting straight pendulum type feed driving structure as claimed in claim 3, characterized in that said slide rail structure (9) comprises a sliding fit bar-shaped rail (91) and a first slider (92); the strip-shaped track (91) is arranged on the base (1), and the first sliding block (92) is arranged on the first sliding block (2) and the second sliding block (3).

5. A lifting straight pendulum feed drive structure as set forth in claim 3 or 4, characterized in that both the first slider (2) and the second slider (3) are provided with at least two slide rail structures (9); each sliding rail structure (9) of the first sliding block (2) is distributed on at least two non-parallel side surfaces of the first sliding block (2); the sliding rail structures (9) of the second sliding block (3) are distributed on at least two non-parallel side surfaces of the second sliding block (3).

6. The structure of claim 1, wherein the first driving device (6) comprises a first driving motor (63) and a first ball screw (62) which are linked, the first ball screw (62) is further in threaded fit with a first ball slider (61), and the first ball slider (61) is disposed on the first sliding block (2).

7. The feeding driving structure of claim 1, wherein the second driving device (8) comprises a second driving motor (83) and a second ball screw (82) which are linked, the second ball screw (82) is further in threaded fit with a second ball slider (81), and the second ball slider (81) is disposed on the second slider (3).

8. The feeding driving structure of claim 1, wherein a grating ruler is disposed between the base (1) and the first sliding block (2) and between the base (1) and the second sliding block (3).

9. A lifting straight pendulum feed drive structure as set forth in claim 2, characterized in that an angle encoder is provided between the rotation drive means (72) and the machining head mount (71).