CN215941632U

CN215941632U - Laser ultrasonic double auxiliary milling device for processing hard and brittle materials

Info

Publication number: CN215941632U
Application number: CN202022965899.4U
Authority: CN
Inventors: 曾凯; 吴贤; 沈剑云; 李�远; 陈永昌; 杜明扬
Original assignee: Huaqiao University
Current assignee: Huaqiao University
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-03-04
Anticipated expiration: 2030-12-10

Abstract

The utility model provides a laser ultrasonic double auxiliary milling device for processing a hard and brittle material, which is characterized by comprising a machine tool main shaft, an ultrasonic tool handle, an adjusting clamp and a laser auxiliary processing system; an ultrasonic tool shank is clamped on a machine tool spindle, a laser auxiliary processing system is set up by a clamping adjusting clamp, a laser heat source is obtained through the laser auxiliary processing system, and a region to be processed of a workpiece is heated and softened by the laser heat source; mounting an ultrasonic vibration workbench on a machine tool workbench by using a fixing clamp, and milling the hard and brittle materials by using a three-dimensional ultrasonic vibration system formed by compounding elliptical vibration generated by the ultrasonic vibration workbench and axial vibration of an ultrasonic tool handle; the workpiece is fixed on the ultrasonic vibration workbench. By applying the technical scheme, the high-efficiency and precise processing of the hard and brittle materials can be realized.

Description

Laser ultrasonic double auxiliary milling device for processing hard and brittle materials

Technical Field

The utility model relates to the technical field of hard and brittle material processing, in particular to a laser ultrasonic double auxiliary milling device for processing hard and brittle materials.

Background

The hard and brittle materials such as ceramics, hard alloy, glass and the like have extremely wide application prospects in the fields of aerospace, space technology, medicine, precision manufacturing and the like due to the excellent performances such as low density, high strength, high temperature resistance, wear resistance and the like. The key components made of these materials have a high service life and application characteristics compared to conventional materials by virtue of their excellent mechanical properties. However, the hard and brittle material can meet the requirements of higher dimensional shape precision and surface quality only by precision machining, and the high requirements on machining are provided due to the high hard and brittle property, low fracture toughness and the like of the hard and brittle material. At present, machining methods such as grinding, ultrasonic vibration milling and laser-assisted cutting can be adopted for machining typical hard and brittle materials. Ultrasonic vibration milling is a special processing method for processing hard and brittle materials, high-frequency vibration is applied to a cutter or a workpiece, the processing process is changed into an intermittent processing process, the ultrasonic vibration processing can reduce the macroscopic cutting stress of the processing surface, improve the processing quality and prolong the service life of the cutter, and the ultrasonic vibration milling is greatly developed in the processing of the hard and brittle materials such as zirconia, sapphire and the like. In the ultrasonic vibration milling processing mode at the present stage, due to the fact that the difficult processing characteristics of the hard and brittle materials are not changed essentially, the problems of serious tool abrasion and low material removal rate are still faced in the processing occasions with large material removal amount.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a laser ultrasonic double auxiliary milling device for processing a hard and brittle material, which realizes efficient and precise processing of the hard and brittle material.

In order to solve the technical problem, the utility model provides a laser ultrasonic double auxiliary milling device for processing hard and brittle materials, which comprises a machine tool spindle, an ultrasonic tool shank, an adjusting clamp and a laser auxiliary processing system, wherein the ultrasonic tool shank is arranged on the machine tool spindle;

an ultrasonic tool shank is clamped on a machine tool spindle, a laser auxiliary processing system is set up by a clamping adjusting clamp, a laser heat source is obtained through the laser auxiliary processing system, and a region to be processed of a workpiece is heated and softened by the laser heat source; mounting an ultrasonic vibration workbench on a machine tool workbench by using a fixing clamp, and milling the hard and brittle materials by using a three-dimensional ultrasonic vibration system formed by compounding elliptical vibration generated by the ultrasonic vibration workbench and axial vibration of an ultrasonic tool handle; the workpiece is fixed on the ultrasonic vibration workbench.

In a preferred embodiment, the adjusting clamp comprises a first fixing end and a second fixing end; the first fixed end is fixedly connected with the machine tool spindle, and the second fixed end is fixedly connected with the laser auxiliary processing system.

In a preferred embodiment, the first fixed end is fixedly connected with a first adjusting rod, and the second fixed end is fixedly connected with a second adjusting rod; the first adjusting rod is rotatably connected with the second adjusting rod.

In a preferred embodiment, the tail ends of the first adjusting rod and the second adjusting rod are provided with connecting holes and fixed through adjusting bolts; the first adjusting rod and the second adjusting rod are enabled to rotate relatively.

In a preferred embodiment, the first fixing end specifically includes two arc-shaped fixing pieces, and the two arc-shaped fixing pieces are spliced two by two to form a circular fixing ring for fixing the machine tool spindle.

In a preferred embodiment, the second fixing end is a fixing ring, and the laser-assisted processing system is disposed in the fixing ring.

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

the utility model discloses a laser ultrasonic double auxiliary milling device for processing a hard and brittle material; the device firstly obtains a laser heat source through a laser auxiliary processing system, utilizes the laser heat source to uniformly heat and soften a region to be processed in a large area range, improves the cutting processability of the material, and then mills the hard and brittle material through a three-dimensional ultrasonic vibration system formed by compounding the elliptical vibration of a workbench and the axial vibration of an ultrasonic cutter. The position adjustment of the laser auxiliary processing system can be realized through the rotation of the first adjusting rod and the second adjusting rod. The method can improve the motion track between the cutter and the workpiece and improve the processing performance of the material, thereby reducing the cutting force and the cutter abrasion, improving the material removal rate and the surface integrity, and finally solving the problem of high-efficiency precision processing of the hard and brittle material.

Drawings

FIG. 1 is a component schematic view of a laser ultrasonic auxiliary milling device for machining hard and brittle materials in the preferred embodiment of the utility model;

FIG. 2 is a schematic technical route of a method for processing a hard and brittle material by using a laser ultrasonic auxiliary milling device for processing the hard and brittle material in the preferred embodiment of the utility model;

FIG. 3 is a schematic flow chart of a hard and brittle material processing method of a laser ultrasonic auxiliary milling device for hard and brittle material processing according to a preferred embodiment of the utility model;

FIG. 4 is a schematic structural diagram of an ultrasonic vibration platform of the laser ultrasonic auxiliary milling device for machining the hard and brittle materials in the preferred embodiment of the utility model;

FIG. 5 is a schematic structural diagram of a laser-assisted machining system of a laser ultrasonic-assisted milling device for machining a hard and brittle material in the preferred embodiment of the utility model;

fig. 6 is a schematic structural diagram of an adjusting clamp of the laser ultrasonic auxiliary milling device for processing hard and brittle materials in the preferred embodiment of the utility model.

Detailed Description

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

A laser ultrasonic assisted milling device for hard and brittle material processing, referring to fig. 1 to 6, comprising: the ultrasonic vibration machining device comprises an ultrasonic vibration workbench 1, an ultrasonic tool shank 2, a laser auxiliary machining system 3, an adjusting clamp 4, a machine tool spindle 5 and a fixing clamp 6. Firstly, an ultrasonic tool shank 2 is arranged on a machine tool spindle 5, then an adjusting clamp 4 is arranged to build a laser auxiliary processing system 3, a laser heat source is obtained through the laser auxiliary processing system 3, the laser heat source is utilized to uniformly heat and soften the area to be processed of a workpiece, the hardness of the material is reduced, and the cutting processability of the material is improved. An ultrasonic vibration workbench 1 is arranged on a machine tool workbench through a fixing clamp 6, and then a three-dimensional ultrasonic vibration system formed by compounding elliptical vibration generated by the ultrasonic vibration workbench 1 and axial vibration of an ultrasonic cutter is used for milling hard and brittle materials.

Referring to fig. 4, the ultrasonic vibration table 1 of the present embodiment can generate elliptical vibration parallel to the surface of the workpiece, and the ultrasonic tool shank 2 is a tool shank of any type, and can generate axial vibration to form a three-dimensional ultrasonic vibration system in combination with the table.

Referring to fig. 6, the adjusting fixture 4 in this embodiment is a universal stage, which can position and fix any processing point on the workpiece by the laser system. Specifically, the adjusting jig includes a first fixing end 41 and a second fixing end 42; first stiff end 41 fixed connection lathe main shaft 5, second stiff end 42 fixed connection laser auxiliary processing system 3. The first fixing end 41 is fixedly connected with a first adjusting rod 43, and the second fixing end 42 is fixedly connected with a second adjusting rod 44; the first adjustment lever 43 is rotatably connected to the second adjustment lever 44. The tail ends of the first adjusting rod 43 and the second adjusting rod 44 are both provided with connecting holes and are fixed through adjusting bolts; the first adjustment lever 43 and the second adjustment lever 44 are relatively rotated. First stiff end 41 specifically includes two arc mounting 411, and two liang of piecings together form a circular solid fixed ring two arc mounting 411 heads and tails for fixed lathe main shaft 5. Specifically, the arc fixing pieces 411 are fixed to each other by bolts. The second fixed end 42 is specifically a fixed ring, and the laser auxiliary processing system 3 is arranged in the fixed ring.

The laser ultrasonic auxiliary milling processing method for processing the hard and brittle materials by using the device is introduced, and comprises the following steps:

the method comprises the following steps: loading an ultrasonic vibration workbench 1 and an ultrasonic knife handle 2;

step two: combining a laser system, building a laser auxiliary processing module 3, introducing laser into a machine tool by using a mounting clamp 4, and building a laser auxiliary ultrasonic vibration milling processing system;

step three: and (3) fixing the workpiece on the elliptical ultrasonic vibration worktable 1 for milling.

The utility model discloses a laser ultrasonic double auxiliary milling device for processing a hard and brittle material; the device firstly obtains a laser heat source through a laser auxiliary processing system 3, utilizes the laser heat source to uniformly heat and soften a region to be processed in a large area range, improves the cutting processability of the material, and then mills the hard and brittle material through a three-dimensional ultrasonic vibration system formed by compounding the elliptical vibration of an ultrasonic vibration workbench 1 and the axial vibration of an ultrasonic tool handle 2. The position of the laser-assisted machining system 3 can be adjusted by rotating the first adjustment lever 43 and the second adjustment lever 44. The method can improve the motion track between the cutter and the workpiece and improve the processing performance of the material, thereby reducing the cutting force and the cutter abrasion, improving the material removal rate and the surface integrity, and finally solving the problem of high-efficiency precision processing of the hard and brittle material.

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.

Claims

1. A laser ultrasonic double auxiliary milling device for processing hard and brittle materials is characterized by comprising a machine tool spindle, an ultrasonic tool handle, an adjusting clamp and a laser auxiliary processing system;

an ultrasonic tool shank is clamped on a machine tool spindle, a laser auxiliary processing system is set up by a clamping adjusting clamp, a laser heat source is obtained through the laser auxiliary processing system, and a region to be processed of a workpiece is heated and softened by the laser heat source; mounting an ultrasonic vibration workbench on a machine tool workbench by using a fixing clamp, and milling the hard and brittle materials by using a three-dimensional ultrasonic vibration system formed by compounding elliptical vibration generated by the ultrasonic vibration workbench and axial vibration of an ultrasonic tool handle; the workpiece is fixed on the ultrasonic vibration workbench;

the adjusting clamp comprises a first fixing end and a second fixing end; the first fixed end is fixedly connected with the machine tool spindle, and the second fixed end is fixedly connected with the laser auxiliary processing system; the first fixed end is fixedly connected with a first adjusting rod, and the second fixed end is fixedly connected with a second adjusting rod; the first adjusting rod is rotationally connected with the second adjusting rod; the tail ends of the first adjusting rod and the second adjusting rod are both provided with connecting holes and are fixed through adjusting bolts; the first adjusting rod and the second adjusting rod are relatively rotated; the first fixing end specifically comprises two arc-shaped fixing pieces, and the heads and the tails of the two arc-shaped fixing pieces are spliced pairwise to form a circular fixing ring for fixing the machine tool spindle; the second stiff end specifically is a retainer plate, the supplementary system of processing of laser set up in the retainer plate.