JPS6135366Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a drilling device, and its purpose is to
Holes are drilled at a plurality of locations using a uniaxial spindle, and the spindle is sequentially positioned at a plurality of drilling positions using a single cylinder device.

When drilling multiple holes in a workpiece, for mass production it is done with a multi-spindle drilling machine or a special machine, and for small quantity production it is done with a radial drilling machine, etc., but the former requires high equipment costs, and the latter In this case, positioning operations at multiple locations are troublesome. None of the above-mentioned processing machines are preferable, especially when producing a wide variety of products in small quantities.

The present invention solves these conventional problems, and uses a single spindle and a single cylinder device to sequentially and continuously position multiple drilling positions, making it possible to cope with changes in the machining position. The gist of this invention is to automatically obtain the required hole-drilling process simply by interfacing a copying plate for positioning.

Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, 1 is a base plate. A pair of horizontal guide shafts 2 extending in the horizontal axis direction are horizontally disposed on the base plate 1, and a table 3 is slidably guided and supported thereon.

A column 3a is fixedly installed on the table 3, and a pair of vertical guide shafts 5 in the vertical axis direction perpendicular to the horizontal guide shaft 2 are provided on the column 3a. A unit base 4 is slidably guided in the vertical direction on the vertical guide shaft 5, and the table 3
Piston rod 7 of cylinder device 6 fixed on top
are combined.

A spindle unit including a spindle 8 extending in the direction of a horizontal axis perpendicular to the horizontal guide shaft 2 and a motor 10 for rotationally driving this spindle 8 is installed on this unit base 4, and a tool 9 such as a drill is mounted at the end of the spindle 8. It is installed.

A plate 11 is fixed to the rear of the spindle unit on a support stand (not shown). On the front surface of this copying plate 11, there are positioning portions 12 corresponding to the positions of a plurality of holes H to be machined in the workpiece W.
A tracing groove 12 having grooves a to 12e and connecting them in series is provided. As shown in FIG. 3, this tracing groove 12 has positioning portions 12a to 12e corresponding to a plurality of drilling positions H of the workpiece W at one end, and a vertical cam groove 20 having a folded portion 21.
One end is connected to the other end of the vertical cam groove 20, the other end is connected to the middle 22 of the adjacent vertical cam groove 20, and the inclined cam grooves 23 forming an obtuse angle θ with the vertical cam groove 20 are arranged alternately and endlessly. It was formed. still,
Reference numeral 13 indicates a stopper projecting from each of the positioning portions 12a to 12e.

On the other hand, a guide member coaxial with the spindle axis is provided at the rear end of the spindle 8, and this guide member is guided to the tracing groove 12. The structure of the guide member is as illustrated in FIG.
It has a structure in which a steel ball 15 is pressed and urged by a spring 16 at the end, and the steel ball 15 is guided into the tracing groove 12.

Next, the operation of the above configuration will be explained. The workpiece W is moved forward and backward relative to the spindle 8 using a predetermined jig, and a hole H is machined using a tool 9.

On the other hand, the unit base 4 moves up and down in the vertical direction along the vertical guide shaft 5 as the cylinder device 6 moves up and down. Based on this vertical movement of the unit base 4, the steel ball 15 is guided to the tracing groove 12 of the tracing plate 11, and the spindle unit is positioned at the drilling position. In this operation, when the drilling process is completed at the positioning part 12e in FIG. 3, the unit base 4 moves vertically upward. As a result, the steel ball 15 rises along the vertical cam groove 20, is guided to the upwardly inclined cam groove 23, and rises from the middle of the adjacent vertical cam groove 20 to the folded part 21 at the upper end of the vertical cam groove 20. At this folded part 21, the unit base 4 is switched to a downward movement, and the steel ball 15 is moved from the folded part 21 to the vertical cam groove 20.
The downwardly inclined cam groove 23 is guided downward along the
It is guided from the middle 22 of the vertical cam grooves 20 adjacent to each other along the positioning portion 12d at the lower end of the vertical cam groove 20 and stops. That is, as the unit base 4 moves up and down, the table 3 is shifted along the horizontal guide shaft 2 by the upward inclined cam groove 23 and the downward inclined cam groove 23, and is indexed to the positioning parts 12e to 12d. It determines the position.
Therefore, by repeatedly moving the unit base 4 up and down, the positioning portions 12a to 12e are sequentially positioned at the drilling positions.

As described above, according to the present invention, movement and positioning in the X-Y axis directions can be performed using a copying plate provided with a copying groove with a special path configuration, by simply moving the unit base up and down in the vertical direction using a single cylinder device. Because it is a single-axis spindle, multiple holes can be drilled, and the device itself is very simple and can be provided at low cost. In addition, when changing the drilling position, the required copying plate can be used. Machining can be started immediately by simply replacing the machine, which has the advantage of allowing efficient machining even in low-volume, high-mix production, and because there is only one drive source, energy can be saved.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the present invention, Figure 2 is Figure 1-
FIG. 3 is an enlarged cross-sectional view of the line, and is a front view showing the path of the tracing groove of the tracing plate. 1...Base plate, 2...Horizontal guide shaft, 3
...Table, 4...Unit base, 5...Vertical guide shaft, 6...Cylinder device, 8...Spindle, 9...Tool, 10...Motor, 11...Copying plate, 12a-12b...Positioning Part, 16
……wrecking ball.

Claims (1)

[Scope of utility model registration request] A unit base is provided on a horizontally movable table so as to be movable vertically using a cylinder device, and a spindle unit rotated by a motor is installed on this unit base in a horizontal direction perpendicular to the moving direction of the table. At the rear of this spindle unit, there is a vertical cam groove with one end having a positioning part or a folded part corresponding to a plurality of drilling positions in the workpiece, one end with the other end of the vertical cam groove, and the other end with the other end adjacent to the vertical cam groove. A copying plate is fixed vertically to the spindle unit, and is provided with a copying groove in which inclined cam grooves that form an obtuse angle with the vertical cam grooves are connected to the middle of the matching vertical cam grooves, and are formed in an endless manner. A guide member that engages with the profiling groove of the profiling plate is provided at the rear end of the unit, and the cylinder device guides the guide member in the profiling groove by raising and lowering the spindle unit, and the spindle unit is moved into the hole of the positioning portion. A drilling device characterized by being positioned at a drilling position.