JP5382714B2 - Combined processing machine for simultaneous processing of two workpiece end faces and processing method thereof - Google Patents

Description

  The present invention relates to a multi-tasking machine and a processing method thereof that are effective for subjecting an end face of a workpiece to end face recess processing such as a semicircular shape in a side view.

A multi-tasking machine capable of performing a plurality of different processing methods with a single machine is known. For example, Patent Document 1 discloses a multi-tasking machine that enables inner and outer peripheral surface machining and cutting of a piston ring.
However, there has been no report on a multi-tasking machine capable of matching two workpieces and simultaneously machining the end surfaces of the two workpieces.

Japanese Patent Laid-Open No. 11-10449

  An object of the present invention is to provide a multi-tasking machine having high processing surface quality and excellent productivity when a recess processing is performed on an end surface of a workpiece from the side, and a processing method thereof.

The multi-tasking machine according to the present invention is capable of simultaneous machining on two workpiece end faces, each of which has L and R chuck means that are rotationally controlled by a spindle motor, opposed to each other. At least one tool post is disposed correspondingly, and at least one of the L and R chuck means is controlled to move forward and backward, and a first work chucked by the L chuck means and a second work chucked by the R chuck means, It has a perforating means for making a hole in the abutting portion from the side surface of the workpiece in a state where the abutment is kept stationary.
The L and R chuck means can be turned with a tool by rotating, and can be milled or drilled in a stationary state.

When such a multi-tasking machine is used, L and R chuck means whose rotation is controlled by a spindle motor are arranged opposite to each other, and the two L and R chuck means are arranged to correspond to at least one tool post. At the same time, at least one of the L and R chuck means is controlled to advance and retreat, and the L chuck means performs the recess and inner peripheral processing of the first workpiece, and the R chuck means performs the recess and inner peripheral processing of the second workpiece. Two workpiece end faces are formed by controlling the forward movement of at least one of the L, R, and R chuck means and performing a perforating process on the abutting portion from the side face in a state where the end faces of the first and second workpieces are abutted and stationary. Simultaneously, recess processing can be performed.
Here, examples of drilling include drilling and end milling.

In the multi-tasking machine according to the present invention, the end faces of two workpieces can be butted and the drilling can be performed from the side to the butted portion. Compared with the small runout of the cutting edge and less chatter, the dimensional accuracy of the machined surface and the cutting surface quality are high.
In addition, productivity is high because two workpieces are processed simultaneously.

The example of a processing means of the 1st work is shown. Means for perforating from the side by abutting the first workpiece and the second workpiece are shown. A procedure for performing back machining of the second workpiece on the R chuck side and machining of the next workpiece on the L chuck side will be described. An example is shown in which a drill is drilled from the side at the abutting portion between the first workpiece and the second workpiece. The perspective view of the workpiece | work which has a side view semicircle recessed part in an end surface is shown. The structural example of a compound processing machine is shown.

FIG. 6 shows a configuration example of the multi-tasking machine according to the present invention.
The L chuck means 10 for holding the workpiece is rotationally controlled by a motor of the L side spindle 11, and an R chuck means 20 is arranged opposite to the L chuck means. The R chuck means is a motor of the R side spindle 21. The rotation is controlled by.
At least one of the L and R chuck means is controlled to move forward and backward in the Z-axis direction. In this embodiment, the R-side main shaft 21 is servo-controlled by the R-side feed motor 22 and the ball screw mechanism 23. .

Each of the L and R chuck means holds the workpiece and has at least one tool post corresponding to each of the L chuck means and the R chuck means so that the workpiece can be processed simultaneously on both sides.
In this embodiment, the first tool post 30 is provided behind the slanted bed 1 and the second tool post 40 is provided in front.
The first tool post 30 is a first turret 31 which is controlled in the Z-axis direction by a feed motor 32 and a ball screw mechanism 32a and is controlled to move in the X-axis direction and the Y-axis direction by feed motors 33 and 34.
Similarly, the second tool post 40 is an example of a second turret 41 whose Z-axis direction is controlled by a feed motor 42 and a ball screw mechanism 42a, and whose movements are controlled by the feed motors 43 and 44 in the X-axis direction and the Y-axis direction. Yes.
Note that a spindle shaft tool post controlled around the B axis may be used instead of the first turret 31 or the like as long as the tool post can process the recess and the inner peripheral surface in the Z-axis direction of the workpiece.

An example of a procedure for processing a product (workpiece) having a semicircular recess a in side view on the end face of a bottomed cylindrical body W as shown in FIG. 5, for example, using the combined processing machine according to the present invention will be described.
As shown in FIG. 1 (a), a first workpiece W ₁ made of a columnar material is chucked and held by an L chuck means 10, and is rotated by an L side spindle 11.
Then processing the outer shape of the outer peripheral portion or the like of the workpiece W ₁ in FIG. 1 (b) of bytes such as shown in the L-side tool 36.
When the outer shape machining of the workpiece _{W 1} is completed, R chuck means 20 is advanced in the direction of _{S 1} as shown in FIG. 1 (c), picking up the workpiece _{W 1.}
R chuck means 20 is retracted in the direction of _{S 2,} L chuck means 10 chucks holding the following second workpiece _{W 2.}
In this state, subjected to recess and inner circumferential machining in the Z-axis direction in the first work W ₁ is a byte such as R-side tool 47 held by R chuck means as shown in FIG. 2 (e), L chuck means 10 is carried out in the recess and the inner peripheral processing destination of the second workpiece W ₂ Z-axis direction by the R-side tool 47 bytes, and the like.
Then R chuck means 20 as shown in FIG. 2 (f) is advanced in the direction of the S _3, the first workpiece W ₁ and butting the end face of the second workpiece W _2, the drill from the side in its quiescent state Drilling is performed with a drilling tool 38 such as.
A perspective view of this state is shown in FIG. 4A, and a cross-sectional view is shown in FIG.
When the end face recess machining of the workpiece is completed, R chuck means 20 is retracted in the direction indicated in S ₄ in FIG. 2 (g).
First work W ₁ which process has been completed is discharged, the second workpiece W ₂ to the inner periphery and the end surface recess machined finished FIG 3 (i), (j) , delivered to the R chuck means as shown in (k) Then, the outer shape processing on the back side is performed by the R side tool 46 such as a cutting tool.
Then the next workpiece W ₃ to L chuck means is a chuck held, is decorated outline processing, then sequentially processed as indicated above is applied.

The feature of the present invention is that, as shown in FIG. 4, the first workpiece W ₁ and the second workpiece W ₂ are abutted in a stationary state, and concave portions are simultaneously formed in the workpieces in both directions by the punching means from the side portion. It is in the point to be processed.
If a single workpiece is machined from the side on the end face, the cutting edge will escape to the outside and chattering is likely to occur. However, if two workpieces are brought into contact with each other in this way, chattering is less likely to occur and machining accuracy is improved. To do.
In addition, although demonstrated using the drill as a drilling tool, it is also possible to form not only a semicircle shape but various recessed shape using various tools, such as an end mill.

10 L chuck means 11 L side spindle 20 R chuck means 21 R side spindle 22 R side feed motor 30 First turret 31 First turret 36 L side tool 37 L side tool 38 Drilling tool 40 Second turret 41 Second turret 46 R side tool 47 R side tool W ₁ 1st work W ₂ 2nd work

Claims (2)

The L and R chuck means, whose rotation is controlled by the spindle motor, are arranged opposite each other.
Each of the two L and R chuck means has at least one tool post correspondingly arranged, and at least one of the L and R chuck means is controlled to move forward and backward.
It has a drilling means for making a hole from the side surface of the workpiece to the butting portion in a state where the first workpiece chucked by the L chuck means and the second workpiece chucked by the R chuck means are brought into contact with each other and stopped. Combined processing machine for simultaneous processing of two workpiece end faces. The L and R chuck means, whose rotation is controlled by the spindle motor, are arranged opposite each other.
Each of the two L and R chuck means has at least one tool post correspondingly arranged, and at least one of the L and R chuck means is controlled to move forward and backward.
Apply the recess and inner circumference of the first workpiece with the L chuck means,
Applying the recess and inner periphery of the second workpiece with the R chuck means,
Two workpieces characterized in that at least one of the L and R chuck means is controlled to advance, and the end surfaces of the first and second workpieces are abutted and stopped, and the abutting portion is subjected to drilling from the side surface. End face simultaneous processing method.

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