阅读说明：本技术 激光超声复合车削加工装置 (Laser ultrasonic composite turning device ) 是由 吴贤 杜明扬 曾凯 李�远 沈剑云 刘力 于 2021-01-20 设计创作，主要内容包括：本发明提供了一种激光超声复合车削加工装置,包括超声振动系统、固定夹具、激光辅助系统、角度调节夹具以及四方刀架；所述固定夹具与所述角度调节夹具分别固定于所述四方刀架的前端和左侧,所述固定夹具夹紧所述超声振动系统,使所述超声振动系统与所述四方刀架的上表面所在平面之间具有一夹角,所述角度调节夹具夹紧所述激光辅助系统。应用本技术方案可实现降低切削抗力与刀具磨损,提高散热效率与加工精度。(The invention provides a laser ultrasonic composite turning device which comprises an ultrasonic vibration system, a fixing clamp, a laser auxiliary system, an angle adjusting clamp and a square tool rest, wherein the ultrasonic vibration system is arranged on the square tool rest; the fixed clamp and the angle adjusting clamp are respectively fixed at the front end and the left side of the square tool rest, the fixed clamp clamps the ultrasonic vibration system, so that an included angle is formed between the ultrasonic vibration system and the plane where the upper surface of the square tool rest is located, and the angle adjusting clamp clamps the laser auxiliary system. By applying the technical scheme, the cutting resistance and the cutter abrasion can be reduced, and the heat dissipation efficiency and the processing precision are improved.)

1. A laser ultrasonic composite turning device is characterized by comprising an ultrasonic vibration system, a fixing clamp, a laser auxiliary system, an angle adjusting clamp and a square tool rest; the fixed clamp and the angle adjusting clamp are respectively fixed at the front end and the left side of the square tool rest, the fixed clamp clamps the ultrasonic vibration system, so that an included angle is formed between the ultrasonic vibration system and the plane where the upper surface of the square tool rest is located, and the angle adjusting clamp clamps the laser auxiliary system.

2. The laser ultrasonic composite turning device according to claim 1, wherein the fixture includes a rectangular block, a circular sleeve; the rectangular block is fixed at the front end of the square tool rest along the horizontal direction, and the included angle is formed between the axis of the circular sleeve and the plane of the upper surface of the rectangular block; an inner ring groove is arranged on the inner side of the circular sleeve and used for fixing the ultrasonic vibration system.

3. The laser ultrasonic composite turning device according to claim 2, wherein the ultrasonic vibration system includes an ultrasonic vibrator, a tool clamping groove, and a flange; the ultrasonic vibrator is provided with a buffer sheet and an amplitude transformer; the side of the cutter clamping groove is provided with an external shaft, the buffer sheet is positioned in the inner ring groove, the angle is arranged between the ultrasonic vibrator and the plane of the upper surface of the rectangular block, the amplitude transformer is connected with the external shaft through a flange, and the included angle is arranged between the axis of the external shaft and the plane of the upper surface of the cutter clamping groove.

4. The laser ultrasonic composite turning device according to claim 3, wherein the angle adjusting jig includes a guide rail, a slider, an annular sleeve, and a support rod; the guide rail is fixed on the left side of the square tool rest; the laser auxiliary system is fixed in the annular sleeve; the sliding block is connected with the guide rail in a sliding manner; the slider fixed connection the bracing piece, the bracing piece is kept away from the one end fixed connection of slider the annular sleeve.

5. The laser ultrasonic composite turning device according to claim 4, wherein the support rods include a first support rod and a second support rod; the first supporting rod is rotatably connected with the second supporting rod; one end of the first supporting rod, which is far away from the second supporting rod, is connected with the sliding block, and one end of the second supporting rod, which is far away from the first supporting rod, is fixedly connected with the annular sleeve.

6. The laser ultrasonic composite turning device according to claim 5, wherein the included angle is 30 °.

Technical Field

The invention relates to the field of turning, in particular to a laser and ultrasonic combined turning device.

Background

Metal cutting is a material processing technique which utilizes a cutting tool to remove a certain surface layer on the surface of a workpiece and can meet the requirements of higher processing efficiency and surface quality. With the progress of science, the requirements of the fields of aerospace, medical instruments, high-speed vehicle manufacturing, space technology and the like on the used materials such as hard alloy, ceramic and the like are higher and higher. In general, a diamond tool is often used for conventional cutting processing of hard and brittle materials such as hard alloys, the conventional cutting processing is continuous cutting, the materials are hard to process, the cutting resistance of the tool is large, the diamond tool does not perform well in the red hardness aspect, the service life of the tool and the quality of a processed surface are adversely affected, and particularly, cracks are easily formed on the processed surface. This also results in the need for more machining procedures to compensate for the resulting surface cracks, unnecessarily increasing the cost of the tooling.

Disclosure of Invention

The invention aims to provide a laser ultrasonic composite turning device, which can reduce cutting resistance and cutter abrasion and improve heat dissipation efficiency and machining precision.

In order to solve the technical problem, the invention provides a laser ultrasonic composite turning device which comprises an ultrasonic vibration system, a fixing clamp, a laser auxiliary system, an angle adjusting clamp and a square tool rest, wherein the ultrasonic vibration system is arranged on the fixed clamp; the fixed clamp and the angle adjusting clamp are respectively fixed at the front end and the left side of the square tool rest, the fixed clamp clamps the ultrasonic vibration system, so that an included angle is formed between the ultrasonic vibration system and the plane where the upper surface of the square tool rest is located, and the angle adjusting clamp clamps the laser auxiliary system.

In a preferred embodiment, the fixing clamp comprises a rectangular block, a circular sleeve; the rectangular block is fixed at the front end of the square tool rest along the horizontal direction, and the included angle is formed between the axis of the circular sleeve and the plane of the upper surface of the rectangular block; an inner ring groove is arranged on the inner side of the circular sleeve and used for fixing the ultrasonic vibration system.

In a preferred embodiment, the ultrasonic vibration system comprises an ultrasonic vibrator, a cutter clamping groove and a flange; the ultrasonic vibrator is provided with a buffer sheet and an amplitude transformer; the side of the cutter clamping groove is provided with an external shaft, the buffer sheet is positioned in the inner ring groove, the angle is arranged between the ultrasonic vibrator and the plane of the upper surface of the rectangular block, the amplitude transformer is connected with the external shaft through a flange, and the included angle is arranged between the axis of the external shaft and the plane of the upper surface of the cutter clamping groove.

In a preferred embodiment, the angle adjusting clamp comprises a guide rail, a sliding block, an annular sleeve and a support rod; the guide rail is fixed on the left side of the square tool rest; the laser auxiliary system is fixed in the annular sleeve; the sliding block is connected with the guide rail in a sliding manner; the slider fixed connection the bracing piece, the bracing piece is kept away from the one end fixed connection of slider the annular sleeve.

In a preferred embodiment, the support rods comprise a first support rod and a second support rod; the first supporting rod is rotatably connected with the second supporting rod; one end of the first supporting rod, which is far away from the second supporting rod, is connected with the sliding block, and one end of the second supporting rod, which is far away from the first supporting rod, is fixedly connected with the annular sleeve.

In a preferred embodiment, the included angle is 30 °.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

the invention provides a laser ultrasonic composite turning device which comprises an ultrasonic vibration system, a fixing clamp, a laser auxiliary system, an angle adjusting clamp and a square tool rest, wherein the fixing clamp and the angle adjusting clamp are respectively fixed at the front end and the left side of the square tool rest through bolts, and the ultrasonic vibration system is clamped through the fixing clamp and forms an included angle with the horizontal plane, wherein the included angle is 30 degrees; the angle adjusting clamp fixes the laser auxiliary system through a bolt and a nut; the laser projected by the laser auxiliary system heats a part of the workpiece surface layer area to soften the workpiece surface layer material, and then the ultrasonic vibration system generates two-dimensional vibration in the axial direction and the main cutting force direction to perform auxiliary processing; the invention is beneficial to reducing the cutting resistance and the cutter abrasion, and improving the heat dissipation efficiency and the processing precision.

Drawings

FIG. 1 is a schematic perspective view of an assembled laser ultrasonic composite turning apparatus according to a preferred embodiment of the present invention;

FIG. 2 is a schematic perspective view of a fixture of the laser ultrasonic composite turning apparatus according to the preferred embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an ultrasonic vibration system of the laser ultrasonic composite turning apparatus according to the preferred embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an ultrasonic vibrator of the laser ultrasonic composite turning device in the preferred embodiment of the invention;

FIG. 5 is a schematic structural view of an angle adjustment fixture of the laser ultrasonic composite turning apparatus according to the preferred embodiment of the present invention;

fig. 6 is a schematic diagram of a laser ultrasonic composite turning process route in the preferred embodiment of the invention.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

Referring to fig. 1 to 6, a laser ultrasonic composite turning device includes an ultrasonic vibration system 40, a fixing clamp 50, a laser auxiliary system 30, an angle adjusting clamp 20 and a square tool rest 10, wherein the fixing clamp 50 and the angle adjusting clamp 20 are respectively fixed at the front end and the left side of the square tool rest 10 through bolts, the ultrasonic vibration system 40 is clamped by the fixing clamp 50 and forms an included angle with the plane of the upper surface of the square tool rest 10, and the included angle is 30 degrees; the laser auxiliary system 30 is clamped by the angle adjusting clamp 20; the processing method comprises the steps that firstly, laser projected by the laser auxiliary system 30 heats a part of the surface area of the workpiece 60, and then the ultrasonic vibration system 40 generates two-dimensional vibration in the axial direction and the main cutting force direction to perform auxiliary processing.

Referring to fig. 1 to 3, the fixing clamp 50 includes a rectangular block 53 and a circular sleeve 51, wherein the rectangular block 53 is horizontally fixed at the front end of the square tool holder 10 by bolts; an included angle is formed between the axis of the circular sleeve 51 and the plane where the upper surface of the rectangular block 53 is located, and the included angle is 30 degrees; the circular sleeve 51 has an inner annular groove 52 on the inner side, and the inner annular groove 52 is used for fixing the ultrasonic vibration system 40.

Referring to fig. 1 to 4, the ultrasonic vibration system 40 includes an ultrasonic vibrator 41, a tool clamping groove 43 and a flange 42, a buffer sheet 414 is disposed on the ultrasonic vibrator 40, the buffer sheet 414 is located in the inner annular groove 52, and an included angle of 30 ° is formed between the ultrasonic vibrator 41 and a plane of the upper surface of the rectangular block 53.

Referring to fig. 3 to 4, the ultrasonic vibrator 41 is provided with an amplitude transformer 415, the side surface of the cutter clamping groove 43 is provided with an external spindle 431, the amplitude transformer 415 is connected with the external spindle 431 through a flange 42, and an included angle is formed between the axis of the external spindle and the plane of the upper surface of the cutter clamping groove, and the included angle is 30 °.

Referring to fig. 1 and 5, the angle adjusting jig 20 includes a guide rail 22, a slider 21, an annular sleeve 24, and a support rod 23, wherein the guide rail 22 is fixed to the left side of the square tool rest 10 by bolts; the laser auxiliary system 30 is fixed in the annular sleeve 24 through bolts and nuts; the slider 21 is slidably connected to the guide rail 22. The slider 21 is fixedly connected with the support rod 23, and one end of the support rod 23 far away from the slider 21 is fixedly connected with the annular sleeve 24. The support rods 23 comprise a first support rod and a second support rod; the first supporting rod is rotatably connected with the second supporting rod; one end of the first support rod, which is far away from the second support rod, is connected with the slide block 21, and one end of the second support rod, which is far away from the first support rod, is fixedly connected with the annular sleeve 24.

A laser ultrasonic composite turning method comprises the following steps: :

step (1), the laser auxiliary system 30 aligns to the surface of a workpiece 60 to be processed through the angle adjusting clamp 20, and laser projected by the laser auxiliary system 30 is heated in a part of the surface area of the workpiece 60 in front of a tool nose;

step (2), the ultrasonic vibration system 40 generates two-dimensional vibration of axial vibration and main cutting force direction vibration;

and (3) the laser auxiliary system 30 and the ultrasonic vibration system 40 are matched with each other to perform composite turning on the workpiece.

The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.