CN202200331U

CN202200331U - Rotary ultrasonic transducer for nonmetal material monofilament line cutting

Info

Publication number: CN202200331U
Application number: CN2011202776095U
Authority: CN
Inventors: 杨克己; 周红明; 陶醉
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2011-08-02
Filing date: 2011-08-02
Publication date: 2012-04-25
Anticipated expiration: 2021-08-02

Abstract

The utility model discloses a rotary ultrasonic transducer for nonmetal material monofilament line cutting. The rotary ultrasonic transducer comprises a duralumin block, a piezoelectric ceramic group and an amplitude transformer, wherein the piezoelectric ceramic group and the duralumin block are sequentially installed at a connecting bracket on a big conical surface of the amplitude transformer from inside to outside and then are connected into a whole by using bolts; and 1-4 equidistantly distributed annular grooves are arranged on an outer cylindrical surface of a cylindrical guiding wheel on a small conical surface of the amplitude transformer along an axial direction. With the adoption of the rotary ultrasonic transducer, axial vibration of the amplitude transformer is conveniently converted into radial vibration of the guiding wheel, thereby facilitating a wire rope to generate longitudinal vibration in a material cutting process, greatly improving the cutting precision and efficiency and being suitable for hard and brittle nonmetal materials, such as infrared semiconductors, ceramics, glass and the like.

Description

The incisory rotary ultrasonic transducer of a kind of nonmetallic materials monofilament lines

Technical field

The utility model relates to and is used for nonmetallic materials cutting processing device, especially relates to the incisory rotary ultrasonic transducer of a kind of nonmetallic materials monofilament lines.

Background technology

All the time, all be to cut or interior circle is cut mostly for nonmetallic cutting with cylindrical.The product that cuts out often occur cut surface coarse, collapse the limit and problem such as residual stress arranged, when especially precious materials being cut, because the wide meeting of the edge of a knife causes spillage of material big.Along with the rise of photovoltaic industry, a large amount of external multi-disc wire cutting machines of import, expensive, more than 800 ten thousand yuan in every machine, general enterprise configuration is all about the 20-40 platform.Principle is to guarantee under the prerequisite of mechanical precision, utilizes steel wire to do straight line and moves and drive abrasive material workpiece is cut.Because precision prescribed is than higher, cutting efficiency is not high, and used consumptive material steel wire and abrasive material all are disposable uses.Moreover be to do integrated circuit, the especially cutting of infrared semiconductor material, it is reported that the price of per kilogram material all is up to ten thousand, to cut at present still or interior circle is cut in blanking with cylindrical, pottery, glass industry also are like this.

Though someone has been used in ultrasonic vibration on some diamond fretsaws, it is directly ultrasonic variable amplitude bar to be pressed in the transmission of carrying out vertical acoustic energy on the diamond steel wire.The shortcoming of this method is that the diamond steel wire not only cuts workpiece; Also horn is cut simultaneously; Steel wire is easy to break, and this kind scheme can only one the corresponding diamond steel wire of horn, many steel wires cut the horn that then needs respective amount simultaneously and drive; Cause the very big wasting of resources, be difficult to promote cutting efficiency.

Summary of the invention

To the problem that exists in the background technology; The purpose of the utility model is to provide a kind of nonmetallic materials monofilament lines incisory rotary ultrasonic transducer; This transducer can convert axial vibration into radial vibration; 1-4 bar wire casing is arranged on the directive wheel surface of transducer, carry the wall scroll steel wire and produce ultrasonic vibration, utilize the Ultrasonic machining technology that material is cut.

The technical scheme that the utility model adopts is:

The utility model comprises duralumin piece, piezoelectric ceramics group, horn; Connection support on the big conical surface of horn links into an integrated entity with bolt after electroceramics group and duralumin piece are installed from the inside to the outside successively, and the cylinder directive wheel external cylindrical surface on the little conical surface of horn has the cannelure that the 1-4 bar is equally spaced vertically.

The beneficial effect that the utlity model has is:

The utility model converts the axial vibration of horn into the radial vibration of directive wheel very easily; Thereby make steel wire rope in the cutting material process, produce extensional vibration easily; Cutting accuracy and efficient have greatly been improved; Be suitable for infrared semiconductor, pottery, hard brittle non-metallic materials such as glass.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the structural representation of the utility model horn.

Fig. 3 is the utility model user mode schematic top plan view.

Fig. 4 is the front view of Fig. 3.

Among the figure: 1. bolt, 2. duralumin piece, 3. piezoelectric ceramics group, 4. horn, 5. directive wheel 6. connects support, 7. incisory steel wire, 8, follower.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As depicted in figs. 1 and 2, the utility model comprises duralumin piece 2, piezoelectric ceramics group 3, horn 4; Connection support 6 on the horn 4 big conical surfaces links into an integrated entity with bolt 1 after electroceramics group 3 and duralumin piece 2 are installed from the inside to the outside successively, and cylinder directive wheel 5 external cylindrical surfaces on the horn 4 little conical surfaces have the cannelure that the 1-4 bar is equally spaced vertically.

Like Fig. 3 and shown in Figure 4; During use; Follower 8 external cylindrical surfaces also have with directive wheel 8 along axle and equate the cannelure that the bar number is equally spaced; In office getting installed an incisory steel wire 7 in the cannelure, directive wheel 8 rotates after a steel wire 7 drives follower 8 rotations, and other cannelure is as spareslots.

Alternate electrical signal makes electroceramics group 3 produce mechanical oscillation through after the piezoelectric ceramics group 3, and mechanical oscillation act on the horn 4; Make horn 4 produce axial vibration; To produce compressional wave vertically in the horn 4, the particle vibration direction of displacement is parallel to axially, according to elastically-deformable poisson effect; Axial distortion can cause horizontal deformation, so particle also produces displacement perpendicular to axial direction when producing axial displacement.Comprise directive wheel 5 on the horn 4, after the luffing vibration of bar propagates on the directive wheel, made directive wheel produce radial vibration.Directive wheel 5 can connect support 6 through rotating shaft to be realized being connected with electric machine rotational axis, drives directive wheel 5 rotations.

In conjunction with Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, further specify the technical scheme and the course of work of the utility model.The utility model comprises duralumin piece, piezoelectric ceramics group, horn; Connection support on the big conical surface of horn links into an integrated entity with bolt after electroceramics group and duralumin piece are installed from the inside to the outside successively, and the cylinder directive wheel external cylindrical surface on the little conical surface of horn has the cannelure that the 1-4 bar is equally spaced vertically.

The rotary ultrasonic transducer is used in the monofilament lines cutting, comprising: duralumin piece 2, piezoelectric ceramics group 3, horn 4.Utilize bolt 1 that duralumin piece 2 and piezoelectric ceramics group 3 are fixed on the horn 4; Be drilled with screwed hole on the big conical surface end of horn 4; Be used for being threaded with bolt 1, comprised directive wheel 5 on the horn 4, above type of attachment all belongs to mechanical connection; The constant intensity that is produced by mechanical connection is enough, thus the displacement that can not cause owing to external vibration in use or come off.On piezoelectric ceramics group 3, load the excitation alternating voltage through collecting ring; Make piezoelectric ceramics group 3 produce mechanical oscillation; Thereby make the horn 4 that is attached thereto produce axial vibration; Comprise directive wheel 5 on the horn 4, after the vibration of horn 4 propagates on the directive wheel 5, made directive wheel 5 produce radial vibration.According to the difference of processing technology demand, can change the radially amplitude of directive wheel 5 through setting to horn 4 sizes,, concrete size can adopt FInite Element to carry out analytical calculation.

Cutting uses rotary ultrasonic transducer, the course of work of the utility model to be for monofilament lines, on said monofilament lines is cut with the rotary ultrasonic transducer, loads alternating voltage through collecting ring; Make said line cutting produce radial vibration with the directive wheel on the rotary ultrasonic transducer 5, incisory steel wire, 7 through directive wheel 5 and follower 8 tensionings; The support 6 of rotating shaft connection simultaneously is connected with electric machine rotational axis with shaft coupling through power transmission shaft; Drive directive wheel 5 and produce rotation, produce and also have the longitudinal ultrasonic vibration when straight lines move, workpiece to be cut is flat on the processing platform and utilizes hold-down mechanism to fix thereby drive on the wire casing of guide roller surface incisory steel wire 7; The length of processing platform is less than the distance between axles of directive wheel 5 with follower 8; Processing platform can move up and down along vertical direction under external force drives, and applies abrasive material at surface of the work to be cut, and incisory steel wire 7 drives abrasive material workpiece is cut; Processing platform carries workpiece along perpendicular to feeding on the vertical direction at steel wire 7 place; Accomplish until cutting work because the high frequency hammer action of Ultrasonic machining, can eliminate effectively cut surface coarse, collapse the limit and residual stress etc. arranged; The consumption that not only can improve working (machining) efficiency and reduce power also fundamentally changes the problem that prior art exists.

Claims

1. the incisory rotary ultrasonic transducer of nonmetallic materials monofilament lines is characterized in that: comprise duralumin piece (2), piezoelectric ceramics group (3), horn (4); After connection support (6) on the big conical surface of horn (4) is installed electroceramics group (3) and duralumin piece (2) from the inside to the outside successively; Link into an integrated entity with bolt (1), cylinder directive wheel (5) external cylindrical surface on the little conical surface of horn (4) has the cannelure that the 1-4 bar is equally spaced vertically.