CN106312217A

CN106312217A - Clamp for electrospark wire-electrode cuttingof workpieces different in thickness at different angles

Info

Publication number: CN106312217A
Application number: CN201610978514.3A
Authority: CN
Inventors: 王彤; 高金鹏; 卢鑫
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2016-11-08
Filing date: 2016-11-08
Publication date: 2017-01-11

Abstract

The invention discloses a clamp for electrospark wire-electrode cuttingof workpieces different in thickness at different angles, particularly relates to a clamp for machining workpieces different in thickness and machining workpieces at different angles and aims at overcoming the shortcomings in the prior art. The clamp is simple in structure and simple and convenient to operate, can rotate round the axes X and Y to make the surface and an electrode wireform any angle and is accurate in angle, and for different cutting angles, workpieces different in thickness can be machined only by adjusting the clamp without secondary clamping. The clamp has the creative advantages that the clamp can clamp workpieces different in thickness, machining can be performed at different workpiece machining angles without re-clamping, the accuracy is very high, and personal errors are decreased. The clamp is very suitable for cutting of experiments at various angles, is low in production cost, simple in structure, convenient to operate, good in practicability, convenient to dismount and maintain and is very suitable for linear workpiece cutting and fixing, and the time is saved.

Description

A kind of Wire EDM different-thickness workpiece and the fixture of different angles

Technical field

The present invention relates to electric spark linear cutting machine field, be specifically related to a kind of for different-thickness work pieces process and work A kind of fixture of the different angles processing of part.

Background technology

In machining, the special process is as a kind of new technology, in recent years with the speed of leap constantly at each machine Tool industry is widely used.At present, the clamping means that wire cutting machine tool is general are to utilize two movable crossbeams as work Station provides and supports, and fixes by pressing solidly plate and clamps workpiece.Clamping it is frequently encountered different in Wire-cut Electrical Discharge Machining The workpiece of type, for different types of workpiece, it is necessary to use different clamping methods, and the workpiece otherwise processed does not meets Required precision, have even deforms workpiece clamp, makes workpiece scrap.In the factory Wire-cut Electrical Discharge Machining is often processed once Part will to workpiece centering once, time-consuming, often one part of processing is have more than is needed how long, and prepare fixture, Clamping parts has used many man-hours.But in order to adapt to the needs of variously-shaped work pieces process, fixture will be used again instead selection Specific fixture is to be suitable for the clamping of workpiece.Although be suitable for the workpiece of various thickness for this clamping mode, if but added Also need to the when of work workpiece angle again workpiece be reset, and also angle need to be measured, operation complexity lose time and And the error of angle is particularly big, affect experimental result.Can fit Wire EDM application is lacked till the most now Answer the unitary clip that the thickness of workpiece changes with machining angle direction.

Summary of the invention

The invention purport provides the one that a kind of different angles for different-thickness work pieces process and workpiece are processed Fixture, overcomes the deficiencies in the prior art, it is provided that a kind of mechanism is simple, easy and simple to handle can rotate around X-axis, Y-axis, make table to be cut Face can become arbitrary angle with wire electrode, and angle is accurate, for the angle of difference cutting, it is not necessary to secondary clamping, only Need alignment jig it is achieved that the workpiece for different-thickness all can be processed.For solving above-mentioned technical problem, the present invention adopts Technical scheme be: the present invention by pedestal, upper clip, rotation lower clamping piece, worm gear and worm screw location twist head form, pedestal be by Left box body merges composition with right case, and upper clip leaves a hex nut so that clamping uses, wherein leading in the middle of upper clip Hole is screwed hole, and by this intermediate plate in the clamping realized for workpiece thin and thick that moves up and down of screw thread, rotating lower clamping piece is Integral piece, is divided into a fillet bar composition of screw rod, fixed disc, a rounded tabs and a fixing worm gear from top to bottom, Worm gear to coordinate with the bullet nose rod rotating lower clamping piece, and precision welding fixes, and worm screw positions.Stubborn head includes twisting of round end Head, the bar that this stubborn head can stretch out with worm screw connects with being screwed, in order to this fixture of disassembly and assembly.The present invention has Advantage and good effect be: fixture can be with the workpiece of clamping different-thickness, and for work pieces process different angles without again Clamping just can be processed, and degree of accuracy is the highest decreases personal error.It is well suited for cutting the experiment of various angle, produces into This is low, and mechanism is simple, easy to operate, practical, saves the time, dismantled and assembled easy to maintenance, is highly suitable for line cutting fixing Workpiece.

Accompanying drawing explanation

Fig. 1 is fixture combination pattern diagram；Fig. 2 is the internal structure taking left box body fixture apart；Fig. 3 is the exploded view of fixture； Fig. 4 is upper clip；Fig. 5 is to rotate lower clamping piece；Fig. 6 is worm gear；Fig. 7 is right case；Fig. 8 is left box body；Fig. 9 is that worm screw location is twisted Head.In figure, 1 is hex nut, and 2 is fixed disc, and 3 is screw rod, and 4 is fixed disc, and 5 is rounded tabs, and 6 is bullet nose rod, and 7 are Worm screw, 8 is that round end twists head, and 9 is worm gear.

Detailed description of the invention

Below in conjunction with the accompanying drawings a kind of Wire EDM different-thickness workpiece of the present invention is done with the fixture of different angles Further describe.With reference to Fig. 3, worm gear 9 is fixed on the bullet nose rod rotating lower frame plate 6, worm gear install fixing upper after weld Connect fixing.With reference to Fig. 2, by turbine with the integral installation of bullet nose rod in the corresponding position of right case, now round end stubborn 8 is not twisted On worm screw, after buckling left box body, round end is twisted head and tighten.With reference to Fig. 1, upper clip 2 is screwed on screw rod 3, in the middle of 2 and 4 Region can be used to press from both sides workpiece, as on the fixing solder joint of casing, and the fixed disc 4 of intermediate plate, graduated disc to be left under rotation. Workpiece be arranged on 2 and 4 middle time, the screw on hex nut of intermediate plate of spanner is fixed workpiece, is if desired adjusted the angle of workpiece Whole, now rotate round end by hand and twist head and can realize, such as turning to one 30 degree angle of work piece cut in the middle of processing, head First fix workpiece to cut, in time cutting to the designated length needed, carry out the conversion of angle, the quarter being certain about on graduated disc Degree, carries out the rotation of 30 degree of angles, has just obtained the angle of processed workpiece workpiece.Worm screw 7 selects modulus to be less than with worm gear 9 2, in order to accurately rotate, in left box body and right case, before assembling clamp body, first-class worm and gear grease RW series Lubricating oil, and worm screw 7 and the most first-class lubricating oil of worm gear 9.When this fixture of demolition and maintenance when, back out round end stubborn 8, so After pull down left box body, now worm screw can be twisted and back-out along the direction of worm gear, lower clamping piece can be rotated with fixed thereon Worm gear is integrally taken out, it is achieved that the dismounting of this fixture, and dismantles very convenient, and fixture carries out the guarantor of cleaning and upper lubricating oil Protect.Above embodiments of the invention are described in detail, but described content has been only the preferred embodiment of the invention, no The practical range for limiting the present invention can be considered.All impartial changes made according to the scope of the invention and improvement etc., all should be still Within belonging to this patent covering scope.

Claims

1. the fixture of a Wire EDM different-thickness workpiece and different angles, it is characterised in that: this device by pedestal, on Intermediate plate, rotating lower clamping piece, worm gear and worm screw location and twist head composition, pedestal is merged with right case by left box body and forms, upper clip Leaving a hex nut so that clamping uses, wherein the through hole in the middle of upper clip is screwed hole, by this intermediate plate at screw thread Move up and down the clamping realized for workpiece thin and thick, rotate lower clamping piece and be integrated part, be divided into screw rod from top to bottom, fixing circle One fillet bar composition of dish, a rounded tabs, and a fixing worm gear, worm gear will be with the bullet nose rod rotating lower clamping piece Coordinating, precision welding fixes, and worm screw location is twisted head and included the stubborn head of round end, and the bar screw thread that this stubborn head can stretch out with worm screw is solid Surely connect, in order to this fixture of disassembly and assembly.

A kind of Wire EDM different-thickness workpiece and the fixture of different angles, its feature exists In；Worm gear is fixed on bullet nose rod, and is formed by precision welding link.

A kind of Wire EDM different-thickness workpiece and the fixture of different angles, its feature exists In: upper clip fixes workpiece by screw rod, is wherein provided with the groove of worm gear and worm screw, and worm gear in left box body and right case Groove stay the center of casing；Wherein right case is that the hole that worm screw stays is blind hole and front is left certain space and stored profit Lubricating oil, it is matched in clearance that left box body leaves the bar in the middle of the head stubborn with worm screw location of through hole and hole.

A kind of Wire EDM different-thickness workpiece and the fixture of different angles, its feature exists In: on fixed disc 4, inscribing angle, scale is accurate to 0.1 degree.