JPS624545A - Machining device - Google Patents

Abstract

PURPOSE:To obtain a less expensive machining device having excellent accuracy, by providing a tool rest attached to guide bars and a screw which reciprocatingly moves on the tool rest and constructing them symmetrically. CONSTITUTION:A workpiece table 3 with a workpiece 4 loaded thereon and a tool rest 5 are attached to guide bars 2 fixed on a bed 12 through wire ropes 7 and joints 8. A ball screw 9 has one end fixed on the tool rest 5 and joints 8. A ball screw 9 has one end fixed on the tool rest 5 and is supported by a beam 12 through a bearing 13, the beam 12 being supported by columns disposed on the bed 1. When the ball screw 9 is rotated by a motor 20 through a worm wheel 19, the workpiece 4 is drilled by a tool 6 (drill) attached to the tool rest 5. This equipment is applicable to various kinds of machining by changing the tool with a cutting tool or a cutter or by mounting a workpiece on a rotary table attached to the workpiece table 3. Since the equipment is symmetrically constructed with the screw as an axis, thermal equilibrium is kept with less strain.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a processing device that processes a lζ1 crop by attaching the tool stand to a workpiece stand while reciprocating the tool stand in the axial direction.

[Prior art] Conventional machine tools include die cutters and brainers that cut a workpiece by moving it back and forth while the workpiece is fixed, and lathes that cut a rotating workpiece by moving a single blade back and forth. , a milling machine that cuts a workpiece by moving it relative to a rotating blade;
There are boring machines, broaching machines that perform drawing operations by moving a tool in the direction of its axis, and machining centers that combine several of the above-mentioned models.

The machine tools that are made to process these metals 44F31 have good processing accuracy, but they have unique and complex configurations to improve machining accuracy, and their handling requires skill. It is something. In addition, in order to improve the machining accuracy, it is necessary to carefully carry out the foundation work to install it, so it is not easy to use, and moreover, it has a complicated structure. Therefore, it is difficult to create a thermally balanced structure, and the heat generated during cutting may deform the frame etc., thereby reducing machining accuracy.

(Problem to be solved by the invention) In recent years, synthetic resins, especially engineering plastics with excellent mechanical properties, have come to be used in place of metal parts because of their machinability and ease of cutting. As a result, it has become desirable to easily carry out the machining using an alternative to the aforementioned metal machine tools.

On the other hand, recently, motors, pole screws, linear slide bearings, and NO units that move in the X-axis and Y-axis directions perpendicular to each other are being introduced.
The accuracy of cross tables, rotary tables, or rotary tools with rotational driving force is improved by bending, and each can be used alone.
It has become possible to obtain it cheaply. Therefore, the present invention combines these features to make it simple and v
This was done with the aim of providing a processing device with a good J degree.

[Means to solve the problem]

The problem when machining a workpiece is to maintain the correct position between the tool and the workpiece by withstanding the machining resistance and cutting resistance, and to move the tool back and forth accurately and smoothly. be. Therefore, the present invention provides a device for reciprocating a tool, in which the pole screw is fixed to the tool stand on which the tool is mounted () with a bolt or the like so as not to rotate, or it is attached so as to be removable, and a nut is screwed onto the pole screw. The motor rotates the motor forward and reverse by a predetermined amount. As a result, the tool stand on which the pole screw is attached is moved back and forth, and the tool stand and the workpiece table on which the workpiece is attached are supported by a common linear slide bearing, and the two can be moved relatively toward and away from each other. I made it possible. In addition, the tool stand and workpiece stand may be connected with a wire V rope, chain, carbon fiber, etc., as necessary, so that they can be handled as one, and either the tool stand or the workpiece stand may be connected. In addition, a table that moves in the X-axis and Y-axis directions that are perpendicular to each other, and a cross table that moves under numerical control are installed, and a rotating table, an indexing table, etc. can also be installed thereon. On the other hand, the tool attached to the tool stand is such that it can be used by attaching a rotary tool that has a rotational driving force to the tool itself or a rotary tool that is remotely rotated using a wire or the like.

[Effect]

By using a common linear slide bearing, the positional relationship between the tool mounted on the tool rest and the workpiece mounted on the work rest, which may be relatively close to or separated from each other, can be precisely controlled. , screw J' into the screw connected to the tool stand.
By rotating the nut in the forward and reverse directions using a forward and reverse motor, the screw, that is, the tool stand, is moved back and forth to machine the workpiece. Particularly when the pole screw 1 is used as the screw, the forward movement 1a can be carried out smoothly. or,
The structure of both is a simple tool stand and workpiece stand, each having a simple shape such as a square symmetrical about the pole screw, and is supported by a linear slide bearing, so it is difficult to maintain thermal equilibrium. Since it has a structure that can be maintained, machining errors caused by deformation due to thermal expansion can also be reduced. Furthermore, by installing a cross table or rotary index table and using a rotating tool, it is possible to process workpieces with extremely complex shapes.

〔Example〕

A workpiece table 3 equipped with a ball slide bearing (not shown) is pivotally supported on a guide bar 2, which is a part of a linear slide bearing placed on a bed 1, and a workpiece 4 is installed there. Similarly, a tool stand 5 equipped with a ball slide bearing (not shown) is pivotally supported on the guide bar 2, and a tool 6 is attached thereto.

The workpiece table 3 and the tool table 5 are connected to each other via a wide ψ rope 1 and a joint 8 attached to the wide V rope 1 so that they can be attached and detached and the installation length can be adjusted. The end of the pole screw 9 is fixed to the tool stand 5 with a bolt or the like, or is removably connected with a chuck, etc., and the nut 10 that is screwed onto the ball screw 9 is installed on the bed 1 and placed on the wall. Alternatively, it is rotatably supported by bearings 13 on a beam 12 supported by a pillar 11, and the outer sides of the pair of bearings 13 are held down by caps 14 and 15, and the inner sides are tightened and fixed with nuts 16. Furthermore, insert collars 17 and 18 inside the pair of bearings 13,
Make sure to maintain the specified distance. A worm wheel 19 fixed to the nut 10 with a bolt or the like meshes with a worm (not shown), and the worm is rotated by a motor 20 fixed to the beam 12.

Since the configuration is as described above, the workpiece 4 is mounted on the workpiece table 3 as shown in the figure, and the tool 6 is mounted on the tool table 5.
Install. In the figure, a rotary power drill is attached, and when the drill is rotated and the nut 10 is rotated together with the worm wheel 19 by the motor 20, the pole screw 9 moves in the axial direction and drills a hole in the workpiece 4. .

This tool 6 can be used as a cutting tool for fully seated r, and can be used to machine a keyway in the shaft hole of the pulley, which is the workpiece 4, and can also be used for various other machining operations such as the following. For example, first, the workpiece table 3 is lifted together with the tool table 5 and removed from the guide bar 2, and the beam 12 is moved, for example, in a direction perpendicular to the plane of the paper, and then attached to a transport vehicle, table, or belt conveyor (not shown). The workpiece table 3 and the tool table 5 are separated by placing the tool on the tool table and disconnecting the joint 8.

Then, at a designated location fully equipped with measuring instruments and jigs,
A workpiece 4 is accurately attached to a workpiece table 3 using a hole through which a guide bar 2 is passed as a reference. At that time, by attaching a cross table or rotary table to the workpiece stand 3 and attaching the workpiece 4 thereon, the workpiece 4 can be moved in three axes including rotation. It can also be worn. Meanwhile, a new tool, such as a 7 rice cutter with a transmission and rotary power that can be rotated at a predetermined number of revolutions, is installed on the tool stand 5 () and transported under the tool stand 5. The work table 3 that has been made is connected with the joint 8. Then, the motor 20 is rotated, the nut 10 is rotated, and the pole screw 9 is raised, so that the workpiece stand 3 and the tool stand 5 are lifted up and fitted onto the guide bar 2. Next, the motor 20 is reversed to lower the workpiece table 3 and the tool table, and the workpiece table 3 is placed on the bed 1 or on a table (not shown) provided on the bed 1. Then, the tool 6 and the workpiece 4 are made to face each other.

Either remove the long joint 8 or leave the wire row 77 slack so that the movement of the tool stand 5 will not be hindered. Then, the milling cutter is rotated to move the workpiece 4 on the cross table and rotary indexing table (not shown) into any desired shape, and at the same time, by rotating the motor 20 in the forward and reverse directions, a three-dimensional Can be processed.

Further, the workpiece 4 that is continuously rotated by the rotary table can be turned while a turning tool attached to the tool stand 5 is reciprocated by the motor 20.

In addition, it is also possible to attach a broach to the tool stand 5 and perform drawing processing.

〔Effect of the invention〕

Since the workpiece stand and the tool stand are supported by a common guide bar, the relationship between them can be maintained accurately. By fixing the pole screw to one of them, for example, to a tool stand, or connecting it detachably, and rotating the nut screwed into the pole screw in the forward and reverse directions with a servo motor,
Machining can be performed by moving the tool stand back and forth.

In this way, this processing device can be configured symmetrically around the pole screw, so it can maintain thermal equilibrium, and by using a low-expansion material for its material, it can reduce the amount of heat generated during cutting. We were able to minimize distortion caused by heat.

In addition to die cutting and slotter processing in which the tool moves linearly, processing using this processing device also uses commercially available and easily available rotary tools, cross tables, rotary tables, etc. By attaching it, drilling, milling, turning, and even broaching can be performed, and engineering plastics with low cutting resistance can be processed with high precision. Furthermore, by increasing the rigidity, it is possible to process metal workpieces.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional view showing the present invention. 2...;...Guide bar 3...Work stand 4...Workpiece 5...Tool stand 6 ......Tool 9...Pole screw 10...Nut 20...Motor patent application Person stock Kiyoshi Inoue, representative of the company Inoue Japax Research Institute ′−・・”、'−、、１、１；'／

Claims (12)

[Claims] (1) A device that processes a workpiece using a tool stand that reciprocates in one axis direction along a linear guide, in which the tool stand with a tool attached, a screw that reciprocates the tool stand, and a screw that is threadedly engaged with the screw. A processing device consisting of a nut and a motor that rotates the nut in forward and reverse directions. (2) The processing device according to claim 1, wherein the screw is a pole screw. (3) The processing device according to claim 1, wherein the tool is removably attached to a tool stand that moves along a guide. (4) The processing device according to claim 1, wherein the tool is a rotating tool equipped with a rotating device. (5) The processing device according to claim 1, wherein the tool is mounted on a table that moves in X-axis and Y-axis directions perpendicular to each other. (6) The processing device according to claim 1, wherein the tool is mounted on a rotary table and rotates around the workpiece. (7) The processing device according to claim 1, in which the tool moves under numerical control. (8) The processing device according to claim 1, wherein the workpiece table moves along a linear guide common to the tool table. (9) The processing apparatus according to claim 1, wherein the workpiece is mounted on a table that moves in X-axis and Y-axis directions perpendicular to each other. (10) The processing apparatus according to claim 1, wherein the workpiece is mounted on a rotary table and rotated around the tool. (11) The processing apparatus according to claim 1, wherein the tool stand and the workpiece stand are linked by a wire rope, carbon fiber, or the like. (12) The processing apparatus according to claim 1, wherein the tool stand and the workpiece stand are linked by a wire rope provided with a joint that can be connected and disconnected, or by carbon fiber or the like.