CN102922314B

CN102922314B - Fixture special for machining discs

Info

Publication number: CN102922314B
Application number: CN201210409098.7A
Authority: CN
Inventors: 于连荣; 于胜英
Original assignee: DALIAN LIANDE MAISHI PRECISION SHAFT Co Ltd
Current assignee: DALIAN DEMAISHI PRECISION TECHNOLOGY CO., LTD.
Priority date: 2012-10-24
Filing date: 2012-10-24
Publication date: 2014-11-05
Anticipated expiration: 2032-10-24
Also published as: CN102922314A

Abstract

The invention provides a fixture special for machining discs. A clamp body is arranged on an end surface of an axial side of a strut; two circular slotted holes which correspond to two holes of a disc are inwards formed along a clamping surface of the clamp body; a connecting disc which is coaxial with the clamp body is arranged on one side, which is far away from the strut, of the clamp body; an axial end surface, which is close to one side of the clamp body, of the connecting disc is connected with one ends of two draw bars; a dowel is inserted into the clamp body and respectively penetrates through slots in the draw bars, so that the clamp body is fixed with the draw bars by the dowel; a pressing block which is coaxial with the clamp body is arranged between the connecting disc and the clamp body and is connected with the two draw bars; a conical groove is formed in the axle center of another axial end surface of the pressing block; a threaded hole is formed in the connecting disc along the axis of the connecting disc; a screw penetrates through the threaded hole and then is connected with the connecting disc; an ejector head is arranged at one end, which faces the clamp body, of the screw; and a twisting disc is arranged at the other end, which is opposite to the ejector head, of the screw. Compared with the prior art, the fixture special for machining the discs has the advantages that the fixture can clamp workpieces without the aid of a centre, is easy and convenient to clamp, short in clamping time and high in machining accuracy, machining efficiency is improved, and the like.

Description

A kind of video disc Special Fixture for Machining

technical fieldthe present invention relates to a kind of machining fixture, relate in particular to a kind of video disc Special Fixture for Machining.

background technologyvideo disc be on air throttle of car, use and and the high accuracy parts that match of throttle plate pin, the cost of processing video disc due to employing precision stamping mode is higher, machining accuracy is difficult to ensure card, so the processing of video disc at present adopts NC lathe turning processing substantially, the fixture adopting is also according to the special fixture of video disc process requirements design, but these fixtures need toply just can complete clamping in process, for example China Patent No. 201110399053.1, patent name is: the fixture that a kind of fixture for turning disks on throttles proposes, its structure is: one end of jacking block connects two pull bars that are parallel to each other and are all parallel to horizontal plane, the cross section circular diameter of every pull bar is identical with the diameter in the hole of air throttle disc surface, and the distance between two holes of the distance between two pull bars and air throttle disc surface is identical, the inserting end of two pull bars is provided with corresponding through hole, and pin inserts jacking block and through the through hole of pull bar inserting end, pull bar and jacking block connected together, one side of jacking block is provided with movable holddown, and this briquetting is connected with pull bar, on briquetting, offers two jacks corresponding with draw rod positions, and the diameter of jack is identical with the diameter of the cross section circular diameter of pull bar.The fixture of this structure use time, must utilize top clamping, this is just restricted to lathe, do not have top lathe just cannot to clamp and process, in addition, top during to the heart required precision higher, tune machine is complicated, the clamping workpiece time is longer, thereby has affected working (machining) efficiency, has improved production cost.

summary of the inventionthe object of the present invention is to provide a kind ofly not only can not rely on top clamping, clamping is easy, the time is short, and machining accuracy is high, and improves working (machining) efficiency, reduces equipment cost, and maintenance is video disc Special Fixture for Machining easily.

The present invention mainly includes pole, clamp, terminal pad, pull bar, pin, briquetting, turn round dish, screw rod and top, wherein pole is that cross section is circular straight-bar, establish and its welding or the clamp that is connected as a single entity its axial side end face, this clamp is the cylindrical metal piece coaxial with pole, an axial side end face of clamp is connected with pole, axially opposite side end face is that clamping face is processed as horizontal by the plane at acute angle or obtuse angle, angle between this clamping face and horizontal plane is identical with the inclination angle angle of video disc axial end, along the clamping face of clamp, to inside, offer two circular slotted eyes corresponding with two holes on video disc, and the diameter of slotted eye is identical with the bore dia on video disc, above-mentioned clamp is established the terminal pad coaxial with clamp away from a side of pole, this terminal pad is connected with one end of two pull bars near the axial end of clamp one side, the slotted eye of these two pull bars and clamp inside is corresponding and the diameter of every pull bar is identical with the diameter of slotted eye, two pull bars can be plugged in slotted eye, two pull bars one end relative to terminal pad is that insertion end is respectively equipped with jack, these two jacks coaxially arrange, have a pin insert clamp and through the jack on pull bar, clamp is fixing with pull bar respectively together with, between above-mentioned terminal pad and clamp, establish the briquetting coaxial with clamp, this briquetting is connected with two pull bars, two pull bars can slide vertically through briquetting and briquetting on pull bar, above-mentioned briquetting is processed as the plane parallel with the clamping face of clamp near the axial end of clamp, and another axial end shaft core position of briquetting is established cone tank, on described terminal pad, along its axis, offer screwed hole, have a screw rod to be connected with terminal pad by screwed hole, screw rod is established the top that head is corresponding with the cone tank of briquetting towards clamp one end, and screw rod is provided with the dish of turning round for drive screw feeding with relative one end, top.

The present invention realizes the clamping of video disc like this:

First lathe chuck is clamped pole, clamp is installed on the chuck of lathe, then playing table adjusts to the rotating accuracy of clamp below 0.01mm, on the pull bar again video disc being installed to, and video disc one side contacts with briquetting, can a plurality of video discs of disposable clamping according to the length of pull bar, after video disc is installed, pull bar is inserted in two slotted eyes of clamp, by pin, pull bar is fixed, then dish is turned round in rotation, screw rod moves to briquetting gradually, until the bellmouth of briquetting is inserted in top, continue rotary screw, screw rod promotes briquetting to clamp one side shifting, until workpiece is tightly clipped between briquetting and clamp, guarantee between video disc very close to each other, complete the clamping of workpiece, carry out turning, because clamping face and the angle between horizontal plane of clamp are identical with the inclination angle angle of video disc axial end, video disc one side contacting with clamp can closely be attached on the clamping face of clamp, between them without any gap, because briquetting is the plane parallel with the clamping face of clamp near the axial end of clamp, video disc one side contacting with briquetting can closely be attached on briquetting, between them also without any gap, so just greatly guaranteed the stability of video disc, and guaranteed that work in-process video disc moves phenomenon without position and occurs.

The present invention compared with prior art tool has the following advantages:

1, do not rely on top clamping, clamping is easy, the time is short, and machining accuracy is high;

2, can a plurality of video discs of clamped one time, clamping is more stable, and during turning, video disc non-displacement phenomenon occurs;

3, the greatly lower cost of equipment, equipment cost Billy is by the cost savings approximately 2/3 of top processing mode;

4, improve working (machining) efficiency, reduce production cost, maintenance is convenient.

accompanying drawing explanationfig. 1 is that the master of duty of the present invention looks schematic diagram.

Fig. 2 is that the A of Fig. 1 is to view.

the specific embodimentas depicted in figs. 1 and 2, pole 1 is that cross section is circular straight-bar, the clamp 2 being connected as a single entity with it is established in its axial side end face, this clamp is the cylindrical metal piece coaxial with pole, an axial side end face of clamp is connected with pole, axially opposite side end face be clamping face 2-1 with horizontal plane between angle and the inclination angle angle of video disc 3 axial ends identical, along the clamping face of clamp, to inside, offer two circular slotted eyes 4 corresponding with two holes on video disc, and the diameter of slotted eye is identical with the bore dia on video disc; Clamp is established the terminal pad coaxial with clamp 5 away from a side of pole, this terminal pad is connected with one end of two pull bars 6 near the axial end of clamp one side, the slotted eye of these two pull bars and clamp inside is corresponding and the diameter of every pull bar is identical with the diameter of slotted eye, two pull bars can be plugged in slotted eye, two pull bars one end relative to terminal pad is that insertion end is respectively equipped with jack 7, these two jacks coaxially arrange, have a pin 8 insert clamps and through the jack on pull bar, clamp is fixing with pull bar respectively together with; Between terminal pad and clamp, establish the briquetting coaxial with clamp 9, this briquetting is connected with two pull bars, two pull bars can slide vertically through briquetting and briquetting on pull bar, briquetting is the plane parallel with the clamping face of clamp near the axial end 9-1 of clamp, and another axial end shaft core position of briquetting is established cone tank 10; On terminal pad, along its axis, offer screwed hole 11, there is a screw rod 12 to be connected with terminal pad by screwed hole, screw rod is established the top 13 that head is corresponding with the cone tank of briquetting towards clamp one end, screw rod is provided with for turning round of drive screw feeding and coils 14 with relative one end, top.

Claims

1. a video disc Special Fixture for Machining, comprise pole, clamp, terminal pad, pull bar, pin, briquetting, turn round dish, screw rod and top, it is characterized in that: clamp is established in the axial side end face of pole, this clamp is the cylindrical metal piece coaxial with pole, an axial side end face of clamp and pole are welded or are connected as a single entity, axially opposite side end face is that clamping face is processed as horizontal by the plane at acute angle or obtuse angle, angle between this clamping face and horizontal plane is identical with the inclination angle angle of video disc axial end, along the clamping face of clamp, to inside, offer two circular slotted eyes corresponding with two holes on video disc, and the diameter of slotted eye is identical with the bore dia on video disc, clamp is established the terminal pad coaxial with clamp away from a side of pole, this terminal pad is connected with one end of two pull bars near the axial end of clamp one side, the slotted eye of these two pull bars and clamp inside is corresponding and the diameter of every pull bar is identical with the diameter of slotted eye, two pull bars can be plugged in slotted eye, two pull bars one end relative to terminal pad is that insertion end is respectively equipped with jack, these two jacks coaxially arrange, have a pin insert clamp and through the jack on pull bar, clamp is fixing with pull bar respectively together with, between terminal pad and clamp, establish the briquetting coaxial with clamp, this briquetting is connected with two pull bars, two pull bars can slide vertically through briquetting and briquetting on pull bar, two pull bars are processed as the plane parallel with the clamping face of clamp through the axial end of briquetting and close clamp, and another axial end shaft core position of briquetting is established cone tank, on terminal pad, along its axis, offer screwed hole, have a screw rod to be connected with terminal pad by screwed hole, screw rod is established the top that head is corresponding with the cone tank of briquetting towards clamp one end, and screw rod is provided with and turns round dish with relative one end, top.