JPS5933544Y2 - Tool mounting shaft spacing adjustment device for drilling machines - Google Patents

Description

[Detailed description of the invention] This invention relates to a device for adjusting the distance between the tool mounting shafts in a machine, which allows drilling two large holes in a workpiece at the same time. The holes are machined simultaneously by a polling machine.

When machining two holes with different spacing using the same poling machine, conventionally, as shown in Fig. 4, the tool mounting axes atbtct and ABk are arranged parallel to each other on the shaft head, and one of the workpieces is machined. When machining other workpieces, attach tool holders to tool mounting axes a, b and A, B to perform machining, and when machining other workpieces, attach tool holders to tool mounting axes a, c, A, and B to perform machining. This allows machining of two types of workpieces with different hole spacings.

That is, in the former case, it is possible to machine a workpiece with a hole spacing of Ll, and in the latter case, it is possible to machine a workpiece having a hole spacing of Ll.

However, although it is possible to machine two types of workpieces with such a machine, it is impossible to machine three or more types of workpieces, and it is difficult to respond to changes in the design of machined parts. be.

The present invention has been devised in view of the above points, and is intended to provide this type of adjustment device that can appropriately adjust the spacing of the tool mounting shaft disposed on the shaft head. Third
Description will be given based on the embodiment shown in the figures.

In the figure, 1 is a bed of a polling machine, 2 is a slider that is slidably disposed on the bed 2, and is moved in the front and back direction in FIG. 1 by a commonly used feeding device.
In FIG. 2, it can be moved left and right.

31 is a lower shaft head fixed on the slider 2, and as shown in the figure, the tool mounting shaft 31a,
31b, 31c, and 31d are provided.

32 is a tool attachment shaft 31a of the lower shaft head 31.

A tool mounting shaft 32a is parallel to 31b, 31c, and 31d.

32b, 32c, and 32d are attached to the upper shaft head, and it is placed on the lower shaft head 31 and configured to be slidable in a direction perpendicular to the feeding direction of the slider 2, and is attached to the lower shaft head 31. It is slid by a slide cylinder 5 supported by a bracket 41.

Stoppers 411 and 421 are respectively attached to brackets 41 and 42 attached to the lower shaft head 31, and the stoppers 321 and 322 attached to both ends of the upper shaft head 32 come into contact with each other.

61 and 62 are clamp cylinders disposed on the upper shaft head 32, and the upper shaft head 32 is appropriately fixed to the metal lower shaft head 31.

Note that the tool mounting shafts 31a, 31b, 31c, 31d and 32a disposed on the upper and lower shaft heads 31 and 32,
32b, 32c, and 32d are belt-driven by a commonly used driving means, that is, an electric motor supported by a column attached to the slider 2.

The present invention is constructed as described above, and its operation will be described below.

Now, when the upper shaft head 32 is moved to the left end as shown in FIG. 31a and 32a, 31b and 32b, 3
1c and 32C, 31d and 32d are on the vertical line and have the shortest distance between them, and 2 with a distance of 4 indicated by L3.
If the work piece is equipped with two holes, four pieces can be machined at the same time.

Next, when machining a part with a distance between two holes longer than L3, first loosen the clamp cylinders 61 and 624, and use the slide cylinder 5 to slide the upper shaft head to the right in 32 gold in Fig. 1. , the stopper 32 as shown in FIG.
2ff: Abut against the stopper 421.

Next, the clamp cylinder 6L62' is operated in the tightening direction to fix the upper and lower shaft heads 31 and 32 with metal.

By setting in this way, the tool attachment shafts 31a and 32a, 31b and 32b, and 31c and 32c disposed on the upper and lower shaft heads 31 and 32.

The distance between 31d and 32d is L4, and four workpieces having two holes 4 having an interaxial distance of L4 can be machined at the same time.

Note that the distance between the corresponding tool attachment shafts disposed on the upper and lower shaft heads can be arbitrarily and reliably adjusted by providing stoppers 322 and 421 with different lengths.

As described above, according to the present invention, by sliding the upper shaft head with 32 metals, it is possible to arbitrarily adjust the distance between the respective corresponding tool mounting shafts disposed on the upper and lower shaft heads. It is possible to process many types of workpieces with different hole intervals.

[Brief explanation of the drawing]

Figure 1 is a front view of the device of the present invention, Figure 2 is a side view of the same, Figure 3 is a front view of the device of the present invention after adjustment, and Figure 4 is an explanatory diagram of the conventional adjustment device. be. 1...Bed, 2...Slider, 3
1... Upper shaft head, 31a, 31b, 31c, 3
1d... Tool mounting shaft, 32... Lower shaft head, 32a, 32b. 32c, 32d... Tool mounting shaft, 41, 42
・・・・・・Bracket, 321.322, 411.4
21...Stock bar 15...Slide cylinder, 61°62...Clamp cylinder.

Claims (1)

[Scope of utility model registration request] a lower shaft head placed on a slider slidably disposed on the bed and provided with a mounting shaft in the sliding direction of the slider; and a lower shaft head placed on the lower shaft head and arranged in the sliding direction of the slider. an upper shaft head configured to be slidable in a right angle direction and having a tool mounting shaft arranged parallel to the tool mounting shaft of the lower shaft head; a means for sliding the upper shaft head against the lower shaft head; and an upper shaft head. A hole drill consisting of a means for appropriately fixing a shaft head is a device for adjusting the distance between the tool mounting shafts of a machine.