CN101927354B - Machine tool for turning button - Google Patents

Abstract

A machine tool for turning buttons comprises a basic body with a cutter frame, wherein the cutter frame can rotate step by step around a vertical axis and is radially equipped with a device for clamping a button blank to be turned and conveying the button blank to a turning cutter. The clamping device comprises at least one protruded chuck rotating around the longitudinal axis of the chuck, the turning cutter is supported in a protruded manner by a platform limited to the basic body by utilizing a controllable device, so as to enable the cutter to move in three directions comprising two translation directions and one rotation direction.

Description

For the lathe of turning button

Technical field

The present invention relates to a kind of lathe for turning button, and be specifically related to the controllable device for locomotive cutting knife tool.

Background technology

Known is usually directed to use that is custom-designed, independently automatic machine tool for removing swarf with the technique making button be shaped.

The button blank being generally circular plate type is maintained in fixture, this fixture can be assemblied in there are such as four fixtures swivelling tool-holder on.

When fixture support knife rest rotates, button blank is presented to a series of work station, and one of them is exactly turning station.

In turning process, button blank is fixing.

In order to obtain different profiles, cutting tool used is shaped according to required button profile.

Button blank is presented to the forming tool being assemblied in the chuck that the axis of symmetry around button blank rotates.Chuck advances in the axial direction, this tool sharpening button blank, and this makes the side of button be shaped.

Only there is in order to avoid making turning cutting tool the special purpose of the button that is identical, not modifiable profile that can be shaped to have, the lathe of some known type has the rotary chuck being designed to be equipped with universal cutter, the position of this rotary chuck is use software program adjustable and be controlled relative to the axis of chuck, thus mills out the profile of button in a different manner as requested.

The lathe of this known type is illustrated by such as utility application No.BS2005U000011.

The application of prior art demonstrates multiple serious shortcoming.

First, as described in, a kind of device with the known type of the button support device of fixed position needs to use the turning cutting tool of solid shape, this means, for each button-shape, to need specific blade.

Secondly, although allow to be used in the controlled general-cutting cutter that axial and radial both direction is moved when chuck rotates, the extremely complicated machinery that the device described in above-mentioned utility model application creates chuck realizes.

Finally, said apparatus does not allow the orientation changing cutter in turning process, and this causes not reaching desirable result sometimes.

Summary of the invention

The object of this invention is to provide and a kind ofly utilize the simple and scheme of economy to eliminate the lathe for turning button of above-mentioned shortcoming.

This object is realized by lathe of the present invention.

Put it briefly, lathe rotary knob blank of the present invention instead of cutting tool.

Lathe of the present invention has cutter holder device, and this cutter holder device carries out controlled moving along at least two orthogonal axles, and comprises the device of the orientation for controlled change cutter.

The invention provides a kind of lathe for turning button, comprise the basic part with turntable, turntable progressively can rotate around its vertical axis and radially loading be furnished with will by the button blank of turning and the device located them into towards turning cutting tool for clamping, it is characterized in that, device for clamping comprises at least one chuck stretched out, chuck is rotatably supported by turntable and axis around chuck rotates, cutter is supported in the mode of stretching out by the platform being fixed on basic part by controllable device, controllable device provides the motion in three directions for cutter, that is: along two translational motions of two orthogonal horizontal axis, one of them horizontal axis is parallel to the axis of chuck, with a rotary motion of the vertical axis around the axis perpendicular to chuck.

Platform can comprise pair of guide rails, the first plate under the control of the first servomotor in first pair of slide on rails; Second pair of guide rail, it is perpendicular to pair of guide rails, is positioned to be supported on the second plate of the control lower slider of the second servomotor on the first plate, and the second plate supporting is used for the device of fastening turning cutting tool.

Device for fastening turning cutting tool can comprise knife rest plate, and the vertical axis that knife rest plate can pass through under the control of the 3rd servomotor near the knife edge rotates.

Device for transmission of drive force between the first servomotor and the first plate can comprise screw flight transmission system.

Device for transmission of drive force between the second servomotor and the second plate can comprise screw flight transmission system.

Screw flight transmission system can comprise the screw rod of the axle being firmly limited to the first servomotor and is firmly limited to the screw gear of the first plate.

Screw flight transmission system can comprise by the screw rod of the axle that is firmly limited to the second servomotor and is firmly limited to the screw gear of the second plate.

For can comprise at the device of the 3rd transmission of drive force between servomotor and knife rest plate between rotate on the second plate and by be firmly limited to the pulley of knife rest plate and directly splined engagement to the axle of servomotor pulley between belt drive unit.

First servomotor and the second servomotor by same programme-control, to determine the motion sequence of required turning cutting tool.

Program is control card disk-drive motor also.

Accompanying drawing explanation

Structural feature of the present invention and functional character will be displayed better by the detailed description carried out with reference to accompanying drawing in this, and these accompanying drawings show the preferred embodiment of the present invention as non-limiting example.

Fig. 1 is the side view of this lathe;

Fig. 2 is the enlarged detail of Fig. 1;

Fig. 3 is the plane of Fig. 2;

Fig. 4 is the sectional view of the planar I V-IV along Fig. 3;

Fig. 5 is the plane of cutter brace table;

Fig. 6 is the side view of Fig. 5;

Fig. 7 is the stereogram of cutter brace table.

Detailed description of the invention

Drawings show lathe 1, it comprises the support knife rest of vertical axes or the basic part 2 of turntable 3, and this knife rest or turntable 3 have four radial directions and equidistant rotary chuck 4, and these chucks 4 design in order to support and rotary knob 5.

Chuck 4 (Fig. 4) is supported rotatably by the knife rest of turntable 3, and comprises the pulley 43 utilizing transmission mechanism (Fig. 2) to drive by motor 44.

Chuck 4 comprises the fixture 41 (Fig. 4) with conventional configurations, and it is kept elastic closure by by around the button blank 51 of turning.

More particularly, fixture 41 comprises at least three elastic arms, and these elastic arms are by by spring 412, the lining 411 be pushed in closing position remains in closing position.

For opening fixture, outer sleeve to act on lining and resists the effect of spring and push it in open position, and outer sleeve is moved by right angle control lever 413, and this right angle control lever 413 is at the effect lower swing of motor-driven cam 414.

Knife rest 3 (Fig. 1) rotates the corresponding button blank 51 with positioning chuck 4 and the platform 6 in the face of supported cart cutting knife tool 7 with equidistant steps will, a such as one time step.

Turning cutting tool 7 can move along two orthogonal horizontal axis, and one of them axis being parallel is in the axis of chuck 4, and turning cutting tool 7 also can rotate around the vertical axis of the axis perpendicular to chuck 4.

Fig. 2 and Fig. 3 shows the basic part 2 that is firmly fixed to lathe 1 and in the face of the platform 6 of chuck 4.

Platform 6 has two the first horizontal guide rail 610, first intermediate plates 61 and slides on this first horizontal guide rail 610.

The movement of the first intermediate plate 61 utilizes screw flight transmission mechanism 612 (Fig. 3) to control by electrical servo motor 611.

First intermediate plate 61 comprises again two the second guide rails 614 perpendicular to the first guide rail 610.

What the second guide rail 614 slided is the second intermediate plate 62, this second intermediate plate 62 by by electrical servo motor 621 the screw flight transmission mechanism 622 that drives control.

On second intermediate plate 62 is knife rest plate 63 (Fig. 3), and this knife rest plate 63 has the device 630 for hindering turning cutting tool 7; The vertical axis 631 that plate 63 passes through near the knife edge rotates.

Plate 63 is firmly assembled to the first pulley 633 below, and this pulley 633 rotates and forms the axle that cog belt operates around it on plate 63.

Be looped around the second pulley 636 around with 634, this second pulley 636 is supported in the mode of idle running from the vertical vertical pin extended of the second intermediate plate 62 (see Fig. 1 and Fig. 5).

Pulley 636 is driven by servomotor 639, and the direct splined engagement of axle of this servomotor 639 is to pulley.

Due to for being known type by button blank 51 device be positioned in fixture 41, therefore repeat no more.

It should be pointed out that except above-mentioned turning station, the station of the boring/mark for button of known type also can be set.

This machine operation is as follows.

In original position, knife rest is arranged to chuck 4 towards cutter 7, and cutter 7 is preferably arranged at the periphery place of chuck.

The chuck clamps of the uplink near turning cutting tool 7 is provided with button blank 51, and motor 44 is activated and rotates this button blank.

Servomotor 611 and 621, according to program behavior, is advanced along the path being suitable for cutting required profile on this button blank to the knife edge of the button blank rotated to make stationary face.

The removal of material preferably utilizes a small amount of amount of feeding of each rotation being used for chuck to carry out in single channel.

During travel path, cutter relative to button blank orientation can the same with servomotor 611 and 621 follow the control of the servomotor 639 of same program under change.

Once complete turning, cutter is just back to original position, turntable moves a step-length the button processed before to be moved to following process station or release (not shown), and is arranged to the button blank be arranged on before on the chuck of upstream towards this cutter.

Device of the present invention achieves all objects of the present invention, mainly makes it possible to carry out turning simply by the control program of amendment servomotor and has differently contoured button, and need not change the machine components of lathe.

Embodiment variant and improvement can be applied to lathe under the prerequisite of scope not abandoning claims.

Claims (10)

1. the lathe for turning button, comprise the basic part with turntable, described turntable progressively can rotate around its vertical axis and radially loading be furnished with will by the button blank of turning and the device located them into towards turning cutting tool for clamping, it is characterized in that, the described device for clamping comprises at least one chuck stretched out, described chuck is rotatably supported by described turntable and axis around chuck rotates, described cutter is supported in the mode of stretching out by the platform being fixed on described basic part by controllable device, described controllable device provides the motion in three directions for described cutter, that is: along two translational motions of two orthogonal horizontal axis, one of them horizontal axis is parallel to the axis of described chuck, with a rotary motion of the vertical axis around the axis perpendicular to described chuck.

2. lathe as claimed in claim 1, it is characterized in that, described platform comprises pair of guide rails, the first plate under the control of the first servomotor in described first pair of slide on rails; Second pair of guide rail, it is perpendicular to described pair of guide rails, is positioned to be supported on the second plate of the control lower slider of the second servomotor on described first plate, and described second plate supporting is used for the device of fastening described turning cutting tool.

3. lathe as claimed in claim 2, it is characterized in that, the described device for fastening described turning cutting tool comprises knife rest plate, and the vertical axis that described knife rest plate can pass through under the control of the 3rd servomotor near the knife edge rotates.

4. lathe as claimed in claim 2, it is characterized in that, the device for transmission of drive force between described first servomotor and described first plate comprises screw flight transmission system.

5. lathe as claimed in claim 2, it is characterized in that, the device for transmission of drive force between described second servomotor and described second plate comprises screw flight transmission system.

6. lathe as claimed in claim 4, it is characterized in that, described screw flight transmission system comprises the screw rod of the axle being firmly limited to described first servomotor and is firmly limited to the screw gear of described first plate.

7. lathe as claimed in claim 5, is characterized in that, described screw flight transmission system comprises by the screw rod of the axle that is firmly limited to described second servomotor and is firmly limited to the screw gear of described second plate.

8. lathe as claimed in claim 3, it is characterized in that, for the device of transmission of drive force between described 3rd servomotor and described knife rest plate comprise to rotate on described second plate and by be firmly limited to the pulley of described knife rest plate and directly splined engagement to the axle of described servomotor pulley between belt drive unit.

9. lathe as claimed in claim 2, is characterized in that, described first servomotor and described second servomotor by same programme-control, to determine the motion sequence of required described turning cutting tool.

10. lathe as claimed in claim 9, it is characterized in that, described program is control card disk-drive motor also.