JPH0413047Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a positioning drilling machine that can simply and easily perform positioning on a workpiece.

(Prior art) When performing drilling, counterboring, etc., the head, which is supported so that the drill device can be raised and lowered, is moved forward and backward as well as left and right relative to the processing table so that the drill device can be positioned as desired on the workpiece. There is a positioning drilling machine that is movably held in the position of the drill device so that the position of the drill device can be freely adjusted in three dimensions. Such a positioning drilling machine is generally equipped with a feed handle for forward and backward movement and sideways movement for fine adjustment of the position of the drill device, and together with a feed handle for raising and lowering provided on the head, it is possible to accurately position the drill. It is made possible to do so.

However, with this type of drilling machine, it is difficult to move the drilling device back and forth over a relatively large area, such as the processing table.
For the convenience of horizontal movement, guide rails in each direction are formed in orthogonal directions across the machining table. A moving handle was also usually provided along each guide rail. however,
Needless to say, if fine adjustment handles are provided separately along each guide rail, the operation becomes extremely complicated and troublesome when positioning the drill blade at a predetermined position on the workpiece. In particular, it was not easy to make delicate adjustments.

(Problems to be solved by the invention) This invention was proposed in view of the above-mentioned problems, and its purpose is to concentrate each handle for fine adjustment on the head, It is an object of the present invention to provide a positioning drilling machine that facilitates the positioning or fine adjustment of the longitudinal, lateral, and vertical positions of a drill device.

(Means for Solving the Problem) That is, this positioning drilling machine includes a processing table and a portal frame configured to be movable back and forth with respect to the processing table along the front and rear guide rails on the side of the machine table. a head configured to be movable left and right with respect to the processing table along left and right guide rails of a horizontal shaft at the top of the portal frame; and a drill device mounted on the head so as to be movable up and down. A rack is fixed to the table in parallel with the front and rear guide rails, a pinion that meshes with the rack is provided on the gate-shaped frame, and a horizontal shaft member provided on the gate-shaped frame is provided to rotate a front-back feed handle provided on the head; A longitudinal fine adjustment mechanism is provided in which transmission is transmitted to the pinion via a vertical shaft member so that the portal frame can be moved back and forth by operating the longitudinal feed handle, and the horizontal shaft is provided with the left and right guide rails. A rack is fixed in parallel, and a pinion that meshes with the rack is provided on the head, and the pinion is rotated by a left-right feed handle provided on the head, and the head can be moved left and right by the left-right feed handle. The present invention is characterized in that it is provided with a lateral movement fine adjustment mechanism.

(Example) Hereinafter, an example of this invention will be described according to the drawings. The accompanying drawings Figure 1 is a partially cutaway front view of a positioning drilling machine showing an embodiment of this invention, Figure 2 is a left side view thereof, Figure 3 is a rear view of the main part of the portal frame, FIG. 4 is an enlarged sectional view taken along line 4--4 in FIG.

First, to explain the outline of this positioning drilling machine, as shown in FIG. 1 and FIG.
A gate-shaped frame 20 is configured to be freely movable back and forth with respect to the processing table (in the direction of arrow a in FIG. 2) along front and rear guide rails 15 on the side surfaces, and left and right guide rails 33 of a horizontal shaft 30 at the top of the gate-shaped frame. Move left and right with respect to the processing table along
In the figure, the head 40 is freely configured (in the direction of arrow b)
and a drill device 50 attached to the head so as to be movable up and down. Reference numeral 23 in FIG. 1 is a guide member that engages with the front and rear guide rails 15 provided on the portal frame. Reference numeral 45 in FIG. 4 is a guide member that engages with the left and right guide rails 33 of the horizontal shaft 30 provided on the head 40.

The positioning of the drill device 50 of this positioning drilling machine is carried out in the longitudinal direction by the longitudinal movement grips 25 provided on both sides of the portal frame 20, and in the left and right direction by the lateral movement grips 43 provided on the front surface of the head 40. It is carried out with Its raising and lowering can be carried out accurately by means of a feed handle 59 provided on the head 40. Reference numerals 18 and 19 in the figure are display mechanism parts that numerically display the machining position of the drill device in the tertiary direction to facilitate positioning.

It should be noted that in the portal frame 20 of the embodiment, as shown in FIGS.
are fixed to each other by. With this new structure, the positional deviation between the two machine pillars 21, 21 has been significantly reduced, and the positioning accuracy (in the longitudinal direction) of the portal frame 20 has been significantly improved from 0.3 mm in the conventional structure to 0.05 mm. .

Next, to explain the position fine adjustment mechanism of this positioning drilling machine, firstly, the longitudinal movement fine adjustment mechanism is
A rack 17 is fixed to the machine base 13 in parallel with the front and rear guide rails 15, and a pinion 60 meshes with the rack.
is provided on the portal frame 20, and the rotation of the forward/backward feed handle 69 provided on the head 40 is transmitted to the pinion 60 via the horizontal shaft member 62 and the vertical shaft member 64 provided on the portal frame 20. The portal frame 20 can be moved back and forth by operating a back and forth feed handle 69.

The fore-and-aft feed handle 69 is provided on the head 40 that moves left and right, and as shown in the sectional view of the principal part of the head in FIG. The rotation of the feed handle 69 is controlled by the bevel gear 67 which meshes with the horizontal shaft member 66, engages in the rotational direction of the horizontal shaft member 62, and is slidable in the axial direction.
2. Number 68 in the diagram
This is a shaft support member for the bevel gear 66 and the bevel gear 67. In the embodiment, a spline is used for the horizontal shaft member 62, and the feed handle 69 and the horizontal shaft member 62
This suppresses the rotational phase shift between the

Further, in the embodiment, the horizontal shaft member 62 and the vertical shaft member 64 as well as the vertical shaft member 64 and the pinion 60 are connected by bevel gear mechanisms 63 and 65 so that their rotations are transmitted.

Next, the left and right fine adjustment mechanism, as shown in FIG. The pinion 70 is rotated by the left and right feed handle 79 provided in the left and right feed handle 79.
The head 40 can be moved from side to side by means of the above.

In the embodiment, the rack 31 and the pinion 70 on the back side of the horizontal shaft 30 and the left/right feed handle 79 on the front side of the head 40 cross below the spur gear 73 on the other end of the shaft 71 of the pinion 70 and the horizontal shaft 30. The left and right feed handle 79 is connected by meshing with a spur gear 75 at the other end of the shaft 77.

(Effects) As illustrated and explained above, according to this invention, the front/back and left/right feed handles for fine adjustment can be centrally provided in the head of the drilling device where the lifting/lowering feed handles are provided, and they can be placed at the same location. It becomes possible to position the drill device in three dimensions.

In this way, the positioning drilling machine of this invention eliminates the complexity and difficulty of positioning conventional drilling equipment, and allows even delicate positioning adjustments to be made extremely simply and easily. .

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view of a positioning drilling machine showing an embodiment of this invention, Fig. 2 is a left side view thereof, and Fig. 3 is a rear view of the main part of the portal frame.
FIG. 4 is an enlarged sectional view taken along line 4--4 in FIG. 10... Processing table, 13... Machine stand, 15...
...Front and rear guide rails, 17...Rack, 20...
Portal frame, 30...Horizontal shaft, 31...
Rack, 33... Left and right guide rail, 40... Head, 50... Drill device, 59... Lifting feed handle, 60... Pinion, 62... Horizontal shaft member, 64... Vertical shaft member, 69... Front/backward feed handle, 70... Easy, 79... Left/right feed handle.

Claims (1)

[Claims for Utility Model Registration] A processing table 10, a gate-shaped frame 20 configured to be movable back and forth with respect to the processing table along front and rear guide rails 15 on the side surface of the machine base 13 of the processing table 10, and the gate-shaped frame 20. The machine comprises a head 40 configured to be movable left and right with respect to the processing table along left and right guide rails 33 of a horizontal shaft 30 at the top of the frame, and a drill device 50 attached to the head so as to be movable up and down; 13, a rack 17 is fixed in parallel with the front and rear guide rails 15, and a pinion 60 that meshes with the rack is provided on the portal frame 20, and the rotation of the front and rear feed handle 69 provided on the head 40 is controlled by the gate frame 20. A longitudinal movement fine adjustment mechanism is transmitted to the pinion 60 via a horizontal shaft member 62 and a vertical shaft member 64 provided in the front and back, so that the portal frame 20 can be moved back and forth by operating the front and rear feed handle 69. A rack 31 is fixed to the horizontal shaft 30 in parallel with the left and right guide rails 33, and a pinion 70 that meshes with the rack is provided on the head, and the pinion 70 is moved by a left and right feed handle 79 provided on the head. A positioning drilling machine characterized by being provided with a left-right movement fine adjustment mechanism which allows the head 40 to be moved left and right by rotating the left-right feed handle 79.