JP2001038503A - Machining head device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To displace a machining tool in a direction perpendicular to a spindle shaft to which it is attached with a simple, inexpensive, and besides, small and lightweight constitution and to enhance general-purpose properties by disposing two link members for linking a spindle gear, an idle gear and a driving force transmitting gear respectively. SOLUTION: When a rotation driving source 28 is rotated and driven, a drive gear 16 pivotally supported to a housing through a bearing 14 is rotated in a predetermined direction. Since a driving force transmitting gear 20a, an idle gear 24a and a spindle gear 26a subsequently engaged therewith are interlocked and rotated, a tool 48 such as a drill is rotated through a spindle shaft 46. At this time, the respective gears 20a, 24a, 26a are linked through two link members 30a, 32a. A link angle of both link members 30a, 32a is varied making an axis of the idle year 24a as a link point to displace the tool 48 along a vertical direction by a predetermined space by vertically displacing a support member 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machining head device capable of coping with various works by providing a tool mounted on a spindle shaft so as to be displaceable in a direction substantially perpendicular to the spindle shaft.

[0002]

2. Description of the Related Art Conventionally, for example, in order to perform various types of processing on a workpiece, a processing apparatus provided with a multi-axis head having various tools rotatably mounted on a plurality of spindle shafts has been used. I have.

In order to cope with the processing of a plurality of different types of workpieces in view of diversified processing modes, the present applicant has made some tools variable in a direction substantially perpendicular to the spindle axis, and applied to a plurality of types of workpieces. A multi-tasking device capable of handling the same has been proposed (see Japanese Patent Application Laid-Open No. Hei 6-226597).

[0004]

SUMMARY OF THE INVENTION The present invention has been made in connection with the above proposal, and displaces a tool in a direction substantially perpendicular to a spindle axis by a simple structure without increasing the size of the entire apparatus. It is an object of the present invention to provide a processing head device that can perform the processing.

[0005]

In order to achieve the above-mentioned object, the present invention has a processing head device which is reciprocally movable on a slide table, and is driven to rotate via a gear train. In a cutting unit provided with a spindle shaft, a spindle gear disposed on the spindle shaft, a first link member rotatably supporting an idle gear meshing with the spindle gear, and the idle gear. A second link member rotatably rotatably supporting a drive side gear meshing with the idle gear, the second link member being connected to the first link member with the axis of the idle gear being a connection point, the spindle shaft and the first link; A supporting member movable integrally with the member in a direction substantially orthogonal to the spindle axis.

In this case, it is preferable to provide a fixing means for fixing the support member to the housing of the cutting unit, or to provide the support member with an elongated hole having an axis along the moving direction of the support member.

According to the present invention, it is possible to deal with various works by displacing the tool in a direction substantially perpendicular to the spindle axis by a simple structure including the first link member and the second link member.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a processing head device according to the present invention will be described below in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a processing head device according to an embodiment of the present invention.

The machining head device 10 includes a housing 12 provided in a cutting unit (not shown), a drive gear 16 rotatably supported by the housing 12 via a first bearing member 14, and a second Bearing member 18a (1
8b), a driving force transmission gear (drive side gear) 20a (20b) rotatably supported by the housing 12 through the housing 12 and meshing with the drive gear 16;
idle gear 24a which is rotatably supported via a and 22b and meshes with the driving force transmission gear 20a (20b).
(24b) and a spindle gear 26a (26b) meshing with the idle gear 24a (24b).

A rotational driving force of a rotational driving source 28 is transmitted to the drive gear 16 via a transmission mechanism (not shown). The processing head device 10 includes a slide table (not shown) that is slidable under the guiding action of guide means (not shown), and the housing 12 is movable integrally with the slide table along the arrow X direction. It is provided in.

The machining head device 10 includes the spindle gear 26a (26b) and the idle gear 24a (24
b) a first link member 30a (30b)
And a second link member 32 linking the idle gear 24a (24b) and the driving force transmission gear 20a (20b).
a (32b) and the first link member 30a (30b)
And the first link member 30 with respect to the housing 12.
a (30b) and a support member 34 provided integrally and displaceably in the vertical direction.

The second link member 32a (32b) has a set of columnar projections 36a, 3a, 3a, 3b projecting along the axial direction.
6b is formed, and the set of protrusions 36a, 36b is axially mounted in the hole 38 of the first link member 30a (30b), whereby the first link member 30a (30b) and the second link member 32a are formed. (32b) shows the idle gear 24
a (24b) are rotatably connected to each other about the axis. In this case, the driving force transmission gear 20a (20
b) is fixed to the housing 12 via the second bearing members 18a and 18b, so that the driving force transmission gear 20a (2
0b) is rotatably supported on the second link member 32a (3
One end of 2b) is fixed to the housing 12 side.

A clearance 40 is formed between the support member 34 and the housing 12, and the support member 34 is provided so as to be vertically movable with respect to the housing 12 through the clearance 40 in the vertical direction. As shown in FIGS. 2 and 3, a plurality of long holes 42 are formed in the support member 34 in a substantially parallel manner with a predetermined space therebetween, and engage with the long holes 42 so that the housing 12 is not shown. The support member 34 is fixed at a predetermined position via a screw member 44 screwed into the screw hole.

A spindle shaft 46 that rotates integrally with the spindle gear 26a (26b) is coaxially fitted inside the spindle gear 26a (26b), and the spindle shaft 46 is rotated via a bearing member (not shown). It is movably supported, and a desired tool 48 is attached to the spindle shaft 46.
Are mounted interchangeably.

A positioning member 50a is provided below the support member 34 for positioning the support member 34 which can be displaced in the vertical direction (see FIG. 1). In the positioning member 50a, a shaft portion 54 mounted in the hole 52 of the housing 12 and a disk portion 56 supporting the support member 34 are integrally formed. In this case, the disk portion 56 having a diameter corresponding to the amount of displacement of the support member 34
It is preferable to prepare a plurality of positioning members 50a to 50c having the following (see FIGS. 2 and 3). 2 and 3
Here, for convenience of description, the drive gear 16 is shown between a pair of driving force transmission gears 20a and 20b.

The working head device 10 according to the embodiment of the present invention is basically configured as described above. Next, the operation and effect of the working head device 10 will be described.

The drive gear 16 rotates in a predetermined direction under the driving action of the rotary drive source 28, and the rotational driving force is transmitted to the driving force transmitting gears 20a (20b) meshing with the drive gear 16, and the driving force is further transmitted. The power is transmitted to the spindle gear 26a (26b) via the idle gear 24a (24b) meshing with the transmission gear 20a (20b). When the spindle gear 26a (26b) rotates in a predetermined direction, the spindle gear 26a (26b)
The tool 48 mounted on (26b), for example, a drill rotates.

As described above, under the rotating action of the tool 48,
The housing 12 is integrated with a slide table (not shown).
Is advanced, the tool 48 approaches a work (not shown) positioned at a predetermined position, and desired work is performed on the work. After the work on the work is completed, the housing 12 is retracted integrally with the slide table (not shown), so that the tool 48 is separated from the work and enters a standby state for the next process.

Next, for example, when the same workpiece is to be machined at a different machining site from the above, or when it is desired to machine a plurality of different types of other workpieces, the support member 34 is mounted on the housing. 12 is displaced to a desired position along the vertical direction of the
4, the support member 34 is fixed. In addition, FIG.
FIG. 3 shows a case where the support member 34 is displaced to the lowermost position, and FIG. 3 shows a case where the support member 34 is displaced to the uppermost position. Accordingly, the support member 34 is provided with a positioning member 50 having a disc portion 56 having a diameter corresponding to the displacement amount.
Through a to 50c, it can be positioned at a desired position within the range of the uppermost end position and the lowermost end position along the vertical direction.

By displacing the support member 34 in the vertical direction, the first link member 30a (30b) supported by the support member 34 moves integrally with the support member 34, thereby forming the first link member. 30a (30b)
And the link angle of the second link member 32a (32b) changes. In this case, since the driving force transmission gear 20a (20b) supporting one end of the second link member 32a (32b) is held on the housing 12, the second link member 3
One end of 2a (32b) is fixed.

In the present embodiment, the first link member 30a
(30b) and the second link member 32a (32b), the spindle gear 26a (26b), the idle gear 24a (24b), and the driving force transmission gear 20a (20).
b) are linked, and the idle gear 24a (24
The first link member 30a (30b) and the second link member 32a (32b) are set with the axis (rotation center) of b) as a link point.
The tool 48 mounted on the spindle shaft 46 can be displaced by a predetermined distance along the vertical direction by changing the link angle between the tool 48 and the tool.

The elongated hole 42 formed in the support member 34
For example, by tilting the axis of the support member 34 at a predetermined angle or along a substantially horizontal direction, the support member 34 can be moved not only in the vertical direction, but also in all directions, such as a tilted direction inclined at a predetermined angle or a substantially horizontal left-right direction. Can be displaced.

As described above, in this embodiment, the spindle gear 26a (26b) and the idle gear 24a (24
b) and the first link member 30a (30b) and the second link member 32a (32b) for linking the driving force transmission gear 20a (20b), respectively, are substantially orthogonal to the axis of the spindle shaft 46 with a simple structure. Direction can be displaced. Further, in the present embodiment, since the number of spindle heads is not increased, the size and weight of the apparatus can be reduced without increasing the size of the entire apparatus, and the manufacturing cost can be reduced.

[0025]

According to the present invention, the following effects can be obtained.

That is, by providing the first link member and the second link member for linking the spindle gear, the idle gear and the driving force transmitting gear, respectively, it is possible to displace in a direction substantially perpendicular to the spindle shaft by a simple structure. .

Also, since the number of spindle heads is not increased, the size of the entire apparatus is not increased,
The size and weight can be reduced, and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic vertical cross-sectional configuration diagram of a processing head device according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state where a support member constituting the processing head device is displaced to a lowermost position.

FIG. 3 is an explanatory diagram showing a state where the support member is displaced to an uppermost position.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Processing head device 12 ... Housing 14, 18a, 18b, 22a, 22b ... Bearing member 16 ... Drive gear 20a, 20b ...
Driving force transmission gears 24a, 24b ... idle gears 26a, 26b ...
Spindle gears 30a, 30b, 32a, 32b Link member 34 Support member 36a, 36b
Projection 38 ... Hole 40 ... Clearance 42 ... Elongated hole 44 ... Screw member 46 ... Spindle shaft 48 ... Tool 50a-50c ... Positioning member

Claims (3)

[Claims] 1. A cutting unit having a reciprocally movable processing head device on a slide table, wherein the processing head device is provided with a spindle shaft that is rotationally driven via a gear train, wherein the cutting unit is disposed on the spindle shaft. A first link member rotatably supporting an idle gear that meshes with the spindle gear, a first link member rotatably supporting the idle gear, and a drive-side gear that meshes with the idle gear. A second link member connected to the first link member with the axis of the idle gear as a connection point; and a support movable integrally with the spindle shaft and the first link member in a direction substantially orthogonal to the spindle shaft. A processing head device comprising: a member; 2. The apparatus according to claim 1, further comprising fixing means for fixing said support member to a housing of a cutting unit. 3. The processing head device according to claim 1, wherein the support member is provided with an elongated hole having an axis along the moving direction of the support member.