CN201012387Y

CN201012387Y - Automatic material-dragging device of digital control lathes

Info

Publication number: CN201012387Y
Application number: CNU2007201067324U
Authority: CN
Inventors: 盛焕君
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-14
Filing date: 2007-02-14
Publication date: 2008-01-30
Anticipated expiration: 2017-02-14

Abstract

The utility model discloses an automatic material-pulling device for numerical-control lathe. The utility model comprises a knife rack board positioned on a guiding track of the numerical-control lathe. The knife rack board is provided with a knife rack for tool installation and an installation seat. An automatic material-pulling device is arranged in the installation seat. The working state of the cylinder is control by a control program. The workpiece can be nipped through an axis-direction pulling of a spring nip by a driving pulling bar so as to realize the automatic pulling process of material. The operation process of the utility model is simple and labor-saving, and the material-in process is rapid and high-efficient. Compared with ordinary numerical-control lathe, the utility model reduces the influence of the self-gravity of the workpiece on the material-pulling length, and solves the problem of length error due to the bending of the workpiece from bump in the material-in process. The utility model has the advantage of no breakout in the working procedure while guaranteeing the relatively-high processing accuracy.

Description

Numerically controlled lathe draws materials device automatically

Technical field

The utility model belongs to a kind of numerically controlled lathe annex, especially can realize drawing automatically the numerically controlled lathe of material to draw materials device automatically under input program control.

Background technology

In numerically controlled lathe, can control the various cutting tools of numerically controlled lathe processes successively workpiece by the program of design in advance, as axial workpiece, after finishing whole setting operations, the feeding manner of workpiece divides two kinds usually, a kind of is that workpiece is pulled out in manual operations, carry out but must shut down, need to unclamp the numerically controlled lathe chuck by instrument, manually pull out one section suitable length then and clamp again, this method extremely bothers, influence operating efficiency, and the uncontrollable length of pulling out, can only measure by aids such as rulers, in this process, can be subjected to artificial factor and can't reach perfect precision; Another kind is by programme-control, by air pressure or hydraulic means with workpiece in the numerically controlled lathe toward extrapolated, the Workpiece length of releasing is controlled by knife rest plate, for example need release the workpiece of 100mm length, only needing the distance of adjustment knife rest plate and chuck is that 100mm gets final product, thisly motor-drivenly come conveniently than manually-operated, procedure need not to interrupt, cut one section and advance one section, improved production efficiency greatly, yet still there is defective in actual use in this processing mode, when for example pushing away toward knife rest plate in the numerically controlled lathe workpiece, influences because of being subjected to the workpiece self gravitation, the pusher process tilts unavoidably, be subjected to big impact simultaneously and easily cause bending when workpiece is run into knife rest plate, the length that workpiece is pulled out exists than mistake, influences machining accuracy.

Summary of the invention

Technical problem to be solved in the utility model be to overcome the defective of prior art and provide a kind of easy and simple to handle, can guarantee when need not to shut down charging to draw materials device automatically than the numerically controlled lathe of high manufacturing accuracy.

Technical problem of the present utility model is achieved through the following technical solutions:

A kind of numerically controlled lathe draws materials device automatically, comprise the knife rest plate that is installed on the numerically controlled lathe guide rail, knife rest plate is provided with the knife rest and the mount pad of mounting cutter, it is characterized in that being provided with in the described mount pad and draw materials device automatically, this device comprises the edge cover that is located in the mount pad, be movably fitted with the collet with the taper seat combination in the edge cover, collet is connected with the pull bar that is moved vertically by air cylinder driven, and the pull bar leading section is provided with connected near switch.

Compared with prior art, the utility model is provided with in the mount pad of numerically controlled lathe knife rest plate and draws materials device automatically, cylinder by this device of programme-control enters duty, drive pull bar and get final product clamping work pieces toward interior pulling collet, thereby realize drawing automatically the material process, it draws the material process not to be subjected to the influence of workpiece self gravitation, also solved simultaneously in fill process because of workpiece is subjected to clashing into and caused bending, thereby produce the problem of error in length, it is efficient so fill process is quick, operating process is easy more laborsaving, has the advantage that can guarantee again when need not to interrupt manufacturing procedure than high manufacturing accuracy.

Description of drawings

Fig. 1 is a three-dimensional structure diagram of the present utility model.

The A-A cutaway view of Fig. 2 Fig. 1.

The specific embodiment

To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.

As Fig. 1～shown in Figure 2, numerically controlled lathe draws materials device automatically, comprise the knife rest plate 1 that is slidingly mounted on the numerically controlled lathe guide rail, be symmetrical arranged two knife rests 4 on this knife rest plate, the installing port 5 of knife rest can be installed cutting tools such as lathe tool or cutter by screw outwardly, be fixed with tool fitting 2 by four screws between two knife rests, the operative end surface of this mount pad is provided with five installing holes 7, and the drill bit of all size can be installed, and drill bit passes the screw hole that is located at the mount pad top by screw and fixes.Also be provided with in the mount pad and draw materials device automatically; this be a kind of by the one section programme-control of input in the numerically controlled lathe, in the numerically controlled lathe working angles, need not to shut down the device that can draw material automatically; it comprises the edge cover 8 that is located in the mount pad; be provided with collet 6 in the edge cover with its active mounting; its head is evenly distributed in three to six flutings; collet can be replaced when damaging at any time; the aperture of edge cover 8 and collet 6 combine with taper seat, and the collet shown in the figure is in open configuration.Pull bar 10 front ends are hollow structure and are threaded in the collet, the hollow structure internal thread be connected with can respond to the location of workpiece near switch 9, belong to outsourcing near switch, the model of producing as Shanghai, Zhejiang worker's sensing Co., Ltd be LJM12-5Z/NK near switch; Back end of tie rod connects cylinder 3 and is driven by it and carries out axially-movable, is separated by back-up block 11 between cylinder and the mount pad 2.

This numerically controlled lathe draws the materials device operation very simple automatically, only need to draw in the material process input numerically controlled lathe control program and get final product, after workpiece was finished cutting under by the cutting tool acting in conjunction on knife rest or the mount pad, the chuck (not shown) stall on the numerically controlled lathe promptly entered the material program of drawing.Under this programme-control, knife rest plate is close toward workpiece, workpiece is entered draw in the open collet of materials device, and by in the collet near behind the inductive switching, induced signal is delivered to cylinder by lead, cylinder enters duty, drive pull bar moves backward, and then the drive collet contracts in mount pad, because the faying face of thimble hole mouth and collet is a taper seat, motion process medi-spring chuck is subjected to the taper seat extruding and clamping work pieces, in the collet clamping work pieces, numerically controlled lathe chuck (not shown) also unclamps workpiece simultaneously under programme-control, just can pull out the workpiece of this length when knife rest plate moves to preset distance outward, draw expect the position after, quit work at the programme-control lower cylinder, collet reset and open-shaped attitude with pending next time draw the material process, numerically controlled lathe chuck (not shown) clamping work pieces again simultaneously, process is proceeded.

Claims

1. a numerically controlled lathe draws materials device automatically, comprise the knife rest plate (1) that is installed on the numerically controlled lathe guide rail, knife rest plate is provided with the knife rest (4) and the mount pad (2) of mounting cutter, it is characterized in that being provided with in the described mount pad and draw materials device automatically, this device comprises the edge cover (8) that is located in the mount pad (2), be movably fitted with collet (6) in the edge cover with the taper seat combination, collet is connected with by cylinder (3) and drives the pull bar (10) of operation vertically, and the pull bar leading section is provided with connected near switch (9).