CN203449051U

CN203449051U - Novel electromagnetic panel clamp

Info

Publication number: CN203449051U
Application number: CN201320490104.6U
Authority: CN
Inventors: 黄军辉; 李丽平; 潘超波
Original assignee: ZHEJIANG ZOMAX AUTO TRANSMISSION CO Ltd
Current assignee: ZHEJIANG ZOMAX TRANSMISSION CO., LTD.
Priority date: 2013-08-12
Filing date: 2013-08-12
Publication date: 2014-02-26
Anticipated expiration: 2023-08-12

Abstract

The utility model provides a novel electromagnetic panel clamp. The novel electromagnetic panel clamp is characterized in that the novel electromagnetic panel clamp comprises a cylindrical shaft which is made of iron and provided with an axial through hole, a coil is wound around the outer wall of the shaft and is connected with a direct-current power supply, an attracting panel is arranged on one end face of the shaft, a cross groove is formed in the attracting panel, the shaft is installed on a machine tool, a workpiece is attracted on the attracting panel, a supporting block is further installed on the machine tool, and the supporting block abuts against the lower surface of the workpiece. The novel electromagnetic panel clamp has the advantages that deformation of the workpiece is small when the workpiece is machined, the service life of the clamp is long, and the machining accuracy is high.

Description

Electromagnet panel holder

Technical field

The utility model belongs to a kind of machining frock, the frock of the clamping processing of especially applicable thin-wall part and flexible type part.

Background technology

For guaranteeing product batch machining, must in the precision that guarantees product, guarantee as much as possible the stability of processing.And common installation way (clamp, tensioner) is in a processing process, the distortion that all exists certain clamping or tensioner to cause, especially thin-wall part, be out of shape larger.And in the process of thin-wall part, owing to being artificial clamping, armrest sense judges whether workpiece installs to position, add product structure restriction, employee is processing continuously for a long time, misloading and to fill inclined to one side possibility very large, stability is also difficult to guarantee.Therefore, adopt conventional installation way, its Product Precision and stability are all difficult to meet client's high accuracy, high-quality requirement.

Utility model content

The utility model provides a kind of electromagnet panel holder, its objective is and solve the shortcoming that prior art exists, while making processing work the distortion of workpiece little, machining accuracy is high.

The utility model solves the technical scheme that its technical problem adopts:

Electromagnet panel holder, is characterized in that: comprise the cylinder axis with axially extending bore of an iron material matter, the outer wall of axle is arranged with coil, and coil is connected with dc source; An end face of axle is absorption panel, on absorption panel, offers cross recess; Described axle is arranged on lathe, and absorption of workpieces, on absorption panel, is also provided with back-up block on lathe, and back-up block contact is on the lower surface of workpiece.

Usefulness of the present utility model is:

Magnetic suction jig of the present utility model can better guarantee the precision of product.Magnetic suction jig is to hold product by electromagnetic force, is that end face is stressed, then supports at the cylindrical of workpiece, in process, can not cause because of clamping the stress deformation of excircle of workpiece and endoporus.

Magnetic suction jig has avoided common frock to change frequently the trouble of fixture.This magnetic-adsorption frock, in process, is not subject to External Force Acting substantially, so wearing and tearing are very little, almost can ignore, so once mounting, can guarantee in the life-span of long-time fixture, with plain clamp comparison, can realize the effect of putting things right once and for all.

Magnetic suction jig has been avoided the trueness error of bringing because of frock clamp wearing and tearing.This frock is owing to being to replace clamping by magnetic-adsorption, thus in actual process, in the time of clamping materials and parts the actual friction of workpiece and fixture very little, substantially can ignore, therefore also avoided the trueness error of bringing because of frock clamp wearing and tearing.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the utility model structure chart;

Fig. 2 is the A-A profile of Fig. 1.

The specific embodiment

As shown in Figure 1 and Figure 2:

The utility model is mounted in the fixture on lathe, and lathe can be lathe, internal grinder etc.

The utility model comprises a castiron cylinder axis with axially extending bore 20 2 for the sufficient length of design as required, the outer wall of axle 2 is arranged with the enamel wire coil 1 of the sufficient length of design as required, coil 1 is connected with dc source 10, circuit comprises ammeter 3, swept resistance 5, switch 9, the dc source 10 of series connection, is also parallel with two voltmeters 6,7 on circuit.

An end face of axle 2 is absorption panel 21, on absorption panel 21, offers cross recess 22; Described axle 2 is arranged on lathe, then allows coil 1 lead to upper direct current, has so just formed a closed magnetic flux, and the flow direction of electric current has determined the south poles of magnetic force, and the size of electric current is relevant with the adsorption strength of magnetic force.Because closed magnetic flux is not possess adsorption capacity, therefore end face is also adsorbed to panel 21 shapes designs a cross recess 22, to form magnetic leakage, so both meets the requirement of absorption, has also met the locating surface requirement as workpiece 8.

Columniform workpiece 8 is adsorbed on absorption panel 21, and back-up block 4 is also installed on lathe, and back-up block 4 contacts are at the lower surface of workpiece 8.

During the actual use of the utility model:

First alternating voltage is converted to DC voltage, and controls voltage can not ether large or too little (concrete debugging determine according to actual conditions), be connected to positive and negative polarities formation dc source 10 stand-by;

Process the axle 2 of the cast iron of Fig. 1, Fig. 2 structure, and guarantee to be installed in lathe, but directly do not install, standby;

By the enamel-covered wire in Fig. 11, with the form of pitch of the laps on axle 2 (during coiling, the number of turn is abundant, and it is enough even that coiling is wanted) uniformly, the position that install at axle 2 two in addition will reserve next, so that Installation and adjustment below;

Switch 9 is in to open mode, standby;

Swept resistance 5 is in maximum state, standby;

Adopt whether safe condition of voltage that voltmeter 6 detects dc sources 10, in order to avoid burn out during follow-up unlatching, cause security incident;

According to Fig. 1, the equipment such as all circuits and voltmeter 6,7, ammeter 3, swept resistance 5 are connected to (noting wherein after switch 9 tippings, must disconnecting), and checked errorless;

The combination of axle 2 and the enamel-covered wire 1 that winds is installed on lathe, and fixes;

Flatness and the perpendicularity of the end face of the conduct absorption panel 21 of axis calibration 2, in order to avoid surpass into trueness error;

Adjustment is arranged on the back-up block 4 on lathe, guarantees that the axis of workpiece 8 and the axis of axle 2 are on same center line, and guarantees that the end face of workpiece 8 can well adsorb on the end face of the conduct absorption panel 21 that leans against axle 2;

Switch on power, check whether ammeter 3, voltmeter 6,7 are in normal frock state, and adjust swept resistance 5 adjusting resistances, to guarantee that the magnetic force that axle 2 produces enough holds workpiece 8 above;

The suction that frock after energising can produce by electromagnetism has fixed workpiece 8, and workpiece 8 leans on is the suction of absorption panel 21, and the support of back-up block 4 locates, so the endoporus 80 processing, precision is high, be out of shape little, good stability.

After machining, because workpiece 8 bands are magnetic, need demagnetization to process (demagnetization method is a lot, has just no longer introduced) here;

After demagnetization, can, according to normal operating sequence at ordinary times, turn off lathe, the equipment such as power supply.

The utlity model has following advantage:

1, precision is high: the deformation effect of avoiding traditional installation way (clamping, tensioner etc.) to bring, thus guaranteed the accuracy error that product causes because of distortion in process, be particularly applicable to the processing of thin-wall part.

2, wear and tear littlely, stability is high: in long-term use procedure, what wearing and tearing absorption panel does not almost have, and so just can better guarantee the stability requirement of product in process.

3, replacement frequency is low: avoided the dismounting of fixture and the temporal waste that installation brings.And load and unload frequently fixture and lathe to be all a kind of infringements, to adopt this frock, to a certain extent lathe and fixture have all been played the effect of protection.

Claims

1. electromagnet panel holder, is characterized in that: comprise the cylinder axis with axially extending bore of an iron material matter, the outer wall of axle is arranged with coil, and coil is connected with dc source; An end face of axle is absorption panel, on absorption panel, offers cross recess; Described axle is arranged on lathe, and absorption of workpieces, on absorption panel, is also provided with back-up block on lathe, and back-up block contact is on the lower surface of workpiece.