JP2725456B2 - Both ends simultaneous metal processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a metal material rod which is sent out by a predetermined dimension and is rotated and processed by a tool such as a cutting tool. The present invention relates to an apparatus for simultaneous metal working at both ends which can be performed automatically.

2. Description of the Related Art Conventionally, when manufacturing a bush fitting (bearing) as shown in FIGS. 8 and 9, one end of a work is machined by cutting a metal material rod into a fixed size and working the work one by one with a processing machine. After cutting the peripheral surface with a cutting tool or drill, cutting the hole, finishing the end face, etc.), it is common to use another machine to machine the other end. Further, a method of forging with a punch and a die using a forging machine such as a multi-stage forging machine is known.

SUMMARY OF THE INVENTION However, such a conventional method requires at least two dedicated machines of different types, and requires time and labor due to processing time. But there was a problem.

Also, even one forging machine is relatively large and expensive,
It is also difficult to make small work such as knurling, screw cutting, and small hole processing because it is mainly forging by hitting a punch and a die. In addition, since processing such as three-piece picking cannot be performed, there is a problem in terms of productivity of arrowheads, and furthermore, there is a problem that noise is intense due to impact due to punching and punching of a die.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the related art, and an object of the present invention is to use a metal material rod having a predetermined length to send out a predetermined dimension and rotate the metal material in advance. After applying the specified tools in order and performing the first-stage processing first, then cutting it so that the subsequent-stage processing of the workpiece can be performed continuously and fully automatically, quickly and reliably. It is possible to send out multiple material rods at the same time by using the same machine and take out two or three pieces at the same time. The resulting product has high precision and excellent quality, and punches and dies like forging machines. An object of the present invention is to provide an apparatus for simultaneous metal working at both ends which does not have a violent tapping action, is quiet in operation, and is advantageous in cost.

Means for Solving the Problems To achieve the above object, the both-end simultaneous metal working apparatus according to the present invention, while feeding and rotating a metal material rod by a fixed size, while processing the front part, cutting This is a metal processing device that performs continuous and fully automatic processing of the rear part of a workpiece, and has a guide hole for a material rod penetrating back and forth at the axis, and a chuck that grips and rotates the material rod at the tip end. A fixed spindle table (first spindle table) which supports the first spindle in a transverse direction, and which moves forward and backward in a direction orthogonal to the axis and in a front-rear direction 1 at a position opposed to the first spindle tip end; Alternatively, a movable tool table (first tool table) including a first tool in which a plurality of tools are arranged, and one or more second tools are immovably installed at a position adjacent to the fixed spindle table and are disposed on a front end face. Fixed tool A table (second tool table) and a chuck aligned with the axis of the first spindle so as to move laterally in the left-right direction and to move in the front-rear direction between the two tables at the front-facing positions of the fixed spindle table and the fixed tool table. A movable spindle table (second spindle table) provided with a second spindle provided with a chuck. Each of the chucks of the first and second spindles separates the movable spindle table from the spindle in the vicinity of the fixed spindle table. Each of the workpieces
1, the second spindle is configured to rotate together with the second spindle and open and close in relation to each other, and the second spindle is provided with a cutting fluid supply hole which penetrates the shaft center and is opened at the tip end, and when the machining is completed, the chuck is opened and cutting is performed. The work is configured to be pushed out of the chuck by the liquid discharging force.

Effect of the Invention According to the present invention, the first tool, which has a predetermined length at the tip end protruding portion while feeding a metal material rod of a predetermined length by a predetermined dimension, grasping it with a chuck and rotating it with a spindle, is rotated. After processing the front part of the workpiece, the protruding part processed is cut off from the material bar, received by the chuck of the second spindle, and applied to the second tool to perform the reverse end processing of the rear part of the work. Can be done.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 3, the fixed spindle base (first spindle base) 10 has a guide hole 13 for the material rod A so as to penetrate the axis in the front-rear direction, and has a chuck 14 at the tip end. First spindle 12 and motor 15 for driving the spindle
Are provided.

Two first spindles 12 are rotatably supported left and right with a predetermined center distance L therebetween, and are simultaneously operated by one motor 15 installed in the middle.

A metal rod A having a fixed length such as aluminum or copper is used.
It is fed out by bar feeders (not shown) one by one from 50.

The movable spindle table 20 is traversed horizontally (X direction) along the traversing guide rail 21, and is guided and moved in the front-rear direction (Y direction) orthogonal to the traversing guide rail 21 on the upper surface thereof. Pedestal 26 installed in
And a second rotatably supported rotatably supported by the traveling platform 26 with the first spindle 12 of the fixed spindle platform 10 aligned with the axis.
And a spindle 22. The second spindle 22 is interlocked with each other so that the two right and left spindles are simultaneously driven by one motor 27 at the same axial distance L so as to form a pair with the two fixed spindles 12 and 12. Make

The fixed spindle base 10 is also provided at the tip of the second spindle 22.
(Second chuck) 24 similar to the spindle 12 of FIG. The second chuck 24 is connected to the first spindle 12
After the front end of the material rod is processed, the workpiece is moved to receive the workpiece, the tip is gripped and rotated, and the lowermost tool (parting tool) 31f of the first tool 31 is used. It is used when cutting off the workpiece W by cutting through the material rod A and when processing the reverse end face of the rear portion of the workpiece by the second tool 41 described later.

The horizontal (X direction) movement of the movable spindle table 20 is
The movement is performed by a traversing motor 23, and the movement in the front-rear direction (Y direction) is performed by a traveling motor 28.

The traversing motor 23 and the traveling motor 28, and the two motors 32 and 33 of the movable tool base 30, which will be described later, are, for example, DC motors so that the feed speed and the feed amount can be controlled numerically in accordance with a program. DC servo motor is used.

The movable tool base 30 is opposed to the tip of the first spindle 12 of the fixed spindle base 10 and is perpendicular to the axis of the first spindle 12 (vertical direction a, b in FIG. 1) and in the front-rear direction. (Directions C and D in FIG. 3), and has a first tool 31 facing backward. As shown in FIG. 4, the first tool 31 includes a plurality of tool groups 31a, 31b,
31c, 31d, 31e..., But may be a single object depending on the object to be processed.

In the case of FIG. 4, when one of them 31b is used as a stopper for positioning and the material rod A is sent out,
The end faces are opposed to each other, and the tip is brought into contact with the end faces to define a certain dimension. Further, the tool 31a at the uppermost stage is used as a knurling trochanter and pressed against the outer peripheral surface of the leading end of the rotating material bar A to form the knurl 1a. Similarly, when the third tool 31c is a drill for drilling, and the fourth tool 31d is a cutting tool for grooving, and the cutting tool is successively applied to the front end protruding portion of the material bar A, the tenth tool is cut. As shown in the figure, the hole 1b on the end face, the peripheral surface processing 1c, and the groove processing 1d can be processed.

Movement of the movable tool base 30 in the up-down direction (a, b) is performed by a motor 32 for up-down movement, and movement in the front-rear direction (c, d) is performed by a motor 33 for back-and-forth movement.

The fixed tool base 40 is fixedly disposed so as to be located on the side of the fixed spindle base 10 and a second fixed base 42 disposed on the front surface thereof so as to face the second spindle 22 of the movable spindle base 20. It consists of two tools 41.

The second tool 41 is provided with a plurality of tools 41a, 41b, 41c,... At predetermined intervals, as shown in FIG. 2, FIG. 3, and FIG.

Among these tools, the first tool 41a is a cutting tool for machining the rear end face 1e of the work W, and the second tool 41a
41b is a drill for drilling to form a hole 1f having a larger diameter than the rear end, and a third tool 41c is used as a cutting bit for finishing the inner surface 1g.

The second tool 41 is used by arbitrarily replacing various tools depending on the purpose and application of processing. Of course, the second tool may be plural as described above, or may be a single tool.

Rotation and stoppage of the first and second spindles 12 and 22 by turning on and off, and opening and closing operations of the first and second chucks 14 and 24 are automatically controlled by a micro switch or the like.

The operation of the both-end simultaneous metal working apparatus configured as described above will be described.

As shown in FIG. 3, the metal material rod A is fixed to the fixed spindle base 10 and the guide hole 13 at the axis of the first spindle 12 from the rear.
And upset by inserting it through the chuck 14.

With the first spindle 12 stopped and the chuck 14 opened, the material rod A is pushed forward by a bar feeder (not shown). At this time, the movable tool base 30 is foreseeable at a predetermined position in front of the fixed spindle base 10, and the protruding length of the material bar A is determined to be constant.

Then, the chuck 14 is closed, the spindle 12 is rotated by the motor 15, and the first tool 31 of the movable tool base 30 is applied to the tip of the material bar to perform desired processing. When the front end of the protruding portion of the material rod A is processed as specified, the rotation of the first spindle 12 is stopped, and at the same time, the movable tool base 30 is once moved away from the front of the fixed spindle base 10, and then is moved to the movable spindle base 20. Approaches the fixed spindle table 10, and grips and rotates the tip projecting portion of the material rod A with the chuck 24 at the tip of the second spindle 22, where it moves again.
30 approaches and separates the work W from the material rod.

Work W is gripped by chuck 24 of second spindle 22
Is carried to the front of the fixed tool table 40 together with the movable spindle table 20, and the rear part of the workpiece W is processed by the second tool 41 by the delicate movement of the movable spindle table 20 in the front-rear and left-right directions, thereby completing one cycle of the process. . After this, chuck
When 24 is opened and the work W is discharged, it is taken out as a product. When the second chuck 24 is opened and the work W is released, the work W is pushed out by the pressure of the cutting fluid constantly flowing out of the hollow hole 22a of the second spindle 22.

Effect of the Invention Since the present invention is configured as described above,
The following effects are obtained.

A metal rod of a predetermined length is sent out by a predetermined dimension, gripped by a chuck, and rotated by a spindle, and a predetermined first tool is applied to a protruding end of the rod to process a front part. After the protruded part is cut off from the material rod and received by the chuck of the second spindle,
It is possible to process the rear end of the work by reverse end face by applying to the tool of the above. Metal parts and various products that need to process both end faces such as bushing fittings continuously and fully automatically can be manufactured in a single The machine can be easily and reliably processed without using a forging machine such as a homer. In addition, two or more metal rods can be fed at the same time to take two or three pieces. The productivity can be further increased because it can be easily performed.

[Brief description of the drawings]

FIG. 1 is a side view of an apparatus for simultaneous metal working at both ends according to an embodiment of the present invention, FIG. 2 is a plan view of the apparatus, FIG. 3 is a plan view showing the operating state of the apparatus, and FIG. FIG. 5 is a plan view of the left half of the fixed tool base, FIG. 6 is an enlarged front view of the movable tool base, and FIG. 7 is the same device. , FIG. 8 is a front view showing an example of a product processed by the apparatus, FIG. 9 is a plan view of the apparatus, FIG. 10 is an enlarged side view showing a processing state of a front end portion of a material rod, FIG. The figure is an enlarged side view showing the state of receiving by the second chuck. 10 ... fixed spindle base, 12 ... first spindle, 13 ...
... Guide holes, 14 ... First chuck, 20 ... Movable spindle stand, 22 ... Second spindle, 24 ... Second chuck, 30 ... Movable tool stand, 31 ... First tool, 40 ......
Fixed tool stand, 41 ... Second tool, A ... Metal bar, W ... Work.

Claims (2)

(57) [Claims] 1. A metal working apparatus in which a metal material rod A is sent out by a predetermined dimension and processed at a front portion while rotating the metal material bar A, and then cut to perform a process of a rear portion of the work continuously and fully automatically. And a fixed spindle table (first spindle table) that horizontally supports a first spindle having a guide hole for a material rod penetrating back and forth at the axis and having a chuck at its tip end for gripping and rotating the material rod. ), And a movable tool base (first tool base) including a first tool in which one or a plurality of tools are arranged to move in a direction perpendicular to the axis and in a front-rear direction and opposed to the first spindle tip port. ), A fixed tool table (second tool table) fixedly installed at a position adjacent to the fixed spindle table and having one or a plurality of second tools disposed on a front end face, and the fixed spindle table and the fixed tool table At the front facing position A movable spindle table (second spindle table) provided with a second spindle with a chuck aligned with the axis of the first spindle so as to move laterally in the left-right direction and to move in the front-rear direction between the two tables; Each of the chucks of the first and second spindles is respectively driven so that the movable spindle stage is close to the fixed spindle stage and receives and rotates the work separated from the spindle.
1, which is configured to rotate together with the second spindle and open and close in relation to each other, and the second spindle is provided with a cutting fluid supply hole which penetrates the shaft center and opens at the tip end, and when the machining is completed, the chuck is opened. A double-sided simultaneous metal working apparatus characterized in that a work is pushed out of a chuck by a discharge force of a cutting fluid. 2. The simultaneous double-ended metal working apparatus according to claim 1, wherein at least two or more first spindles and second spindles are provided at predetermined intervals with respect to each spindle base and are interlocked with each other.