JPS5852007Y2 - Guide member for spindle holder in multi-axis attachment - Google Patents

Description

[Detailed description of the invention] This invention relates to a guide member for a spindle holder in a multi-axis attachment used in a drilling machine, tapping machine, etc., and its purpose is to have a simple structure and to easily and accurately move multiple spindle holders in the radial direction. To provide a guide member for a spindle holder whose position can be adjusted and which can easily fix the spindle holder to an attachment body.

An embodiment of the invention in a multi-spindle attachment for a drilling machine will be explained below with reference to the drawings. In the drawing, 1 is the attachment body, and the main shaft support cylinder 2 of the drilling machine is tightened and fixed to the center of the upper end of the attachment body. The tightening ring 3 is attached, and the inner side of the attachment main body 1 is made to project toward the center to form an upper wall 22.

Reference numeral 4 denotes a ring-shaped mounting flange integrally formed on the lower end of the attachment body 1, and an appropriate number of through holes 5 (12 in this embodiment) are provided at equal intervals on the outer side of the mounting flange for bolt insertion. ), and a locking groove 6 having a T-shaped cross section for supporting the head of a bolt 160 for supporting the spindle holder described later is provided in an annular shape on the inner side, and the bolt 16 is positioned along the locking groove 6. Adjustable.

The bolts 16 are introduced from a passageway (not shown) that also has a T-shaped cross section and communicates with the locking groove 6 from the outer peripheral surface of the mounting flange 4.

Reference numeral 7 denotes a suitable number (four in this embodiment) of intermediate gears supported inside the attachment main body 1 so as to mesh with a drive gear 9 fixed to the main shaft 8 of the drilling machine.

The upper end of the support shaft 7a of the intermediate gear 7 is attached to the attachment body 1.
It is attached to the upper wall 22 so as to move in the circumferential direction within an annular groove 23 provided transparently in the upper wall 22.

Therefore, the intermediate gear 7 is attached to the attachment main body 1 in a state where the intermediate gear 7 is meshed with the gear 9 and its position can be adjusted around the gear 90.

10, as shown in FIG. 3, a pair of annular protrusions 11 and 12 are integrally formed concentrically near the outer periphery and inner periphery of the upper surface of a planar doughnut-shaped plate, and are equally spaced from the plate. The guide plate according to the present invention has four guide grooves 13 cut out in each section and radially, and when installed on the mounting flange 4, the annular protrusions 11 and 12 are rotatably fitted to the mounting flange 4. will be combined.

Reference numeral 14 denotes four spindle holders that are reciprocatably engaged with each guide groove 13 of the guide plate 10, and all of them are in contact with the lower surface of the attachment body 1.

In the longitudinal direction of each spindle holder 14, an elongated hole 17 is provided through which a tightening bolt 15 inserted into the through hole 5 and a support bolt 16 suspended from the locking groove 6 are inserted.

A spindle 18 is attached to the tip of each spindle holder 14, and a spindle gear 19 that meshes with each of the intermediate gears 7 is fixed to its upper end, and a drill 20 is fixed to its lower end. There is.

Reference numeral 21 denotes an arm which is located directly below the intermediate gear 7 and gear 19 and is articulated so as to be rotatable with respect to the support shafts 7a and 19a of both gears 7 and 19, and which always maintains the meshing of both gears. I'm starting to get it.

Next, the operation of the multi-axis attachment having the above configuration will be explained.

Now, when the main shaft 8 and gear 9 are rotated, the rotation is transmitted to each gear 19 via each intermediate gear 7, and at the same time, each spindle 18 and drill 20 are rotated to perform drilling work.

Now, if you want to change the pitch of the four spindles 18 and perform drilling work at different positions on the workpiece, loosen the tightening bolts 15 and support bolts 16 and move the spindle holder 14 between the spindles 18 and the drill 20. and the gear 19 along the guide groove 13 of the guide plate 10 to a predetermined position, and then tighten both the poles N5 and 16 again.

Furthermore, when adjusting the position of the spindle holder 14, the intermediate gear 7 is pushed laterally by the arm 21.

In this way, in the embodiment of the present invention, a pair of annular protrusions lL12 are integrally formed on the upper surface of the donut-shaped plate material, and guide grooves 13 are cut out radially at equal intervals in four places on the plate material. , spindle holder 14
The spindle holder 14 can be easily and precisely adjusted in the radial direction along the guide groove 13, and the spindle holder 14 can be reliably held by the guide groove 13 so as not to oscillate laterally.

Note that the present invention can also be embodied in the following embodiments.

(a) Guide groove 13 of guide plate 10 in three places,
Form at equal intervals in three or more than five joints.

(b) Either one of the pair of annular protrusions 11 and 12 integrally formed on the guide plate 10 may be omitted.

←→ The entire guide groove 13 is formed to have a negative cross-section, and a through hole (path shown in the figure) for insertion of the tightening bolt 15 and the support bolt 16 is provided on the upper surface thereof.

b) The widths of the plurality of guide grooves 13 are made to be different.

(e) As shown by the dashed dotted line in Figure 3, the guide plate 10 is provided with a through hole 10a for inserting a tightening bolt that is screwed into the through hole 5 on the attachment body 1 side.

If this is done, the guide plate 10 can be held in a fixed state even if the tightening bolt 15 and support bolt 16 passing through the guide groove 13 are loosened when adjusting the position of the spindle, and therefore the position of the spindle can be easily adjusted. and accurate.

As detailed above, the present invention has a simple structure, allows each spindle holder to be easily and accurately adjusted in the radial direction, and also allows the spindle holder to be easily fixed to the multi-axis attachment body. There is an effect that can be done.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of the invention in a multi-axis attachment for a drilling machine, Fig. 2 is a bottom view of Fig. 1, and Fig. 3 is a perspective view showing only the guide member of the invention. be. 10... Guide plate, lL12... Annular protrusion,
13... Guide groove.

Claims (1)

[Scope of utility model registration request] A guide plate 10 is removably fixed to an annular mounting flange 4 formed on the multi-axis attachment main body 1, and a guide plate 10 has a guide plate 10 with a guide plate 10 extending straight in a radial direction around the center of the guide plate 10. A plurality of guide grooves 13 are transparently provided in the guide groove 13, and a spindle holder 14 for attaching a drill 20, a tap, etc. to each guide groove 13 is movable in the length direction of the guide groove 13, and each spindle holder 14 The spindle 1 attached to each spindle holder 14 is fixed such that it can abut against the mounting flange 4 of the multi-axis attachment body 1, and the drive gear 9 is located at the center of the multi-axis attachment body 1.
The spindle gears 19 on 8 are engaged via the intermediate gear 7, and the upper end of the main shaft 7a of each intermediate gear 7 is moved in the circumferential direction along the annular groove 23 of the upper wall 22 of the multi-axis attachment main body 1. 1. A guide member for a spindle holder in a multi-axis attachment, characterized in that the guide member is attached to a multi-axis attachment main body 1 so as to be able to move the spindle holder.