JPS609602A - Attachment for composite machining - Google Patents

Abstract

PURPOSE:To improve machining efficiency and accuracy by providing two supporting tables, either of which can approach, separate and shift, on the attachment body. CONSTITUTION:An indexing table 3 which can make dividing rotation around the horizontal axis and which will become an attachment head and a chuck 4 holding a matter to be machined W are provided on the turning table 2 which can rotate in a horizontal plane provided on the upper face of one end portion of a base plate 1. On the upper face of the other end portion of the base plate 1 is provided a supporting table 6 which can approach and separate from the indexing table 3 on one end portion, and on the supporting table 6, a chuck 9 opposite to the chuck 4 located on one end portion, on the same axis line of the chuck 4 is attached to a bracket 8 which is integrated with a turning table 7 which rotates in a horizontal plane. Therefore, machining of the whole external side face and the whole end face can be performed as a series of machining, and preparation works such as marking-off and cutting of the datum plane can be avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an attachment for complex machining that enables continuous machining of side surfaces and end surfaces of a workpiece in a series of steps.

Workpieces to be machined often require grooves, holes, screws, and other processing on their outer surfaces and both end surfaces.

Conventionally, these processes are divided into two processes: the outer surface, one end face, and the other end face, or three processes: the outer face, one end face, and the other end face, as the gripping part of the workpiece cannot be machined, and machining is performed while changing setups. ing. When changing setups, preparatory work is required such as marking lines for phase alignment and cutting out centering reference planes for the next process.
In the next process, phasing and centering work based on these marking lines and reference planes must be performed, which is very complicated, and there is no need for these marking processes or cutting out the reference planes in the final product. This simply increases the number of steps.

In addition, due to setup changes, non-machining time increases, and there is also the drawback that phase shifts and misalignments are likely to occur, resulting in a decrease in machining accuracy.

An object of the present invention is to eliminate such conventional drawbacks and provide an attachment for complex machining that can continuously process side faces and end faces in a series of steps. The present invention achieves this object by providing two support stands on the attachment main body, at least one of which can move toward and away from the attachment main body, and attaching the attachment head to each support stand via a turning means. The present invention is characterized in that a workpiece gripping means is installed, faces each attachment head on the same axis, and is capable of rotating at least one side about the axis.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

Fig. 1 is a perspective view of an embodiment of the compound machining actument of the present invention applied to a horizontal processing machine. 1 is installed on the upper surface of one end of the base plate 1 (the left end in the figure), and a swivel base 2 that can be rotated in a horizontal plane is attached. An indexing table 3 which is rotatable around a horizontal axis and serves as an attachment head is mounted on the swivel base 2, and a chuck (in the illustrated example, a chuck (in the illustrated example, a A two-jaw chuck) 4 is installed. Further, on the upper surface of the other end of the base plate 1, a sliding guide 5 is provided that moves toward and away from the indexing table 3 at one end.
Two of them are arranged in parallel, and a support stand 6 that can slide along a sliding guide 5 is provided. A swivel base 7 that rotates in a horizontal plane is provided on the support base 6, and a chuck 9 that faces the chuck 4 at one end on the same axis is attached to a bracket 8 that is integral with the swivel base 7.

Next, the machining process by the horizontal machining machine using the attachment roller for compound machining constructed as above will be described with reference to FIGS. 2(a) to (gLa?) shown in plan view.

For processing in this case, for example, a horizontal machining center is used, the indexing table 3 is controlled by the controller of the machining center, and the number of control axes is
+ V + Z 3 axes and index table 3 axis 4
First, in order to process the outer surface of the workpiece W (the outer circumferential surface in the case of a circular i-shaped object), as shown in FIG. The workpiece W is mounted so that the workpiece W is in a predetermined position with respect to the tool spindle T, for example, the outer surface thereof is at a right angle. In this way, predetermined grooves, holes, screws, etc. are machined on the outer surface of the workpiece W by controlling the indexing table 3 and the tool spindle T.

Next, in order to process the end surface of the workpiece W on the opposite side from the part gripped by the chuck 4, the swivel table 2 to which the indexing table 3 is attached is rotated to machine the end surface of the workpiece W on the opposite side from the part gripped by the chuck 4. Make sure the end face faces the front of the tool spindle T0
In this way, the tool spindle T is controlled to machine predetermined grooves, holes, screws, etc. on the end surface of the workpiece W. After the machining is completed, the swivel table 2 is rotated again and returned to its original position as shown in FIG. 2(C).

Thereafter, the opposite end face of the workpiece W is completely machined, but first, the workpiece W is transferred as shown in FIG. 2(d) (6). That is, the support base 6 is moved along the sliding guide 5.
At the same time, the chuck 9 is advanced toward the workpiece W, and the chuck 9 attached to the bracket 8 is brought into an open state and brought into contact with the end surface of the workpiece W, and then stopped. After operating this chuck 9 to grip the workpiece W, the chuck 4 on the indexing table 3 side, which was currently gripped in the hole, is released and the workpiece W is transferred to the chuck 9, as shown in FIG. ), the support stand 6 is moved back along the sliding guide 5 again and returned to its original position to complete the transfer.

Next, in order to machine the unmachined end surface tttn of the workpiece W, as shown in FIG. A predetermined groove by Tt control.

Performs processing of holes, screws, etc.

By performing the machining in this manner, predetermined grooves, holes, screws, etc. can be continuously machined in a series of steps on the entire outer surface and both end surfaces.

In addition, marking work for phasing and centering and cutting work of the reference surface are no longer necessary, thereby improving machining efficiency and machining accuracy.

In the above embodiment, the application to a horizontal machining center was explained, but it can also be used for complex machining with a variety of machine tools such as a vertical machining center, vertical and horizontal milling cutters, drilling machines, universal grinders, jig grinders, etc. I can do it.

Further, the machining process may be performed in the order of one end surface, the outer surface, and the other end surface, and the shape of the workpiece W may be any shape such as a polygonal column, a cylinder, or a cylindrical shape.

As specifically explained above in conjunction with the embodiments, according to the present invention, at least one of a pair of chucks facing each other on the same axis can be moved toward and away from each other, and each chuck can be rotated. After gripping and machining with one chuck, the workpiece is transferred to the other chuck and the remaining machining can be done after gripping and machining. It is possible to eliminate preparatory work such as work and cutting out the reference surface.

Therefore, it is possible to shorten the non-machining time and improve the machining efficiency, and the machining accuracy is improved without phase shift or misalignment.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the attachment for complex processing of the present invention, and Figs. 2 (a) to (g) are explanations of the planar state of the processing process using the attachment for complex processing of the present invention. It is a diagram. In the drawing, 1 is the base plate, 2.7 is the swivel table, 3 is the indexing table, 4.9 is the chutney, 5 is the sliding guide, 6 is the support base, 8 is the bracket, T is the tool spindle, and W is the workpiece. It is. Patent applicant: Mitsubishi Heavy Industries, Ltd. Sub-agent Patent attorney: Shibu Mitsuishi (and 1 other person) Figure 1 Figure 2 v″X-T Figure 2 Figure 2 [T

Claims (1)

[Claims] Two support stands are provided on the attachment main body, at least one of which can move toward and away from the attachment body, and each attachment head is attached to each support stand via a rotating means, and the attachment head is mounted on the same axis as the other support stand. 1. An ametment for complex machining, characterized in that workpiece gripping means are provided opposite to each other and at least one of which is rotatable around an axis.