JPH069767Y2 - Woodworking milling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) This invention relates to a woodworking milling machine.

(Prior Art) Conventional vertical type woodworking milling machines are mainly used for processing woodworking products such as furniture and wood for construction, so that the table or spindle head moves up and down, and the table moves forward and backward and / or.
Or, it is generally of a simple structure that moves left and right.

(Problems to be solved by the invention) However, recently, woodworking milling machines have come to be widely used in the production of casting wooden molds, profile machining models, resin mold wooden molds for trial production of press products, etc. The rate of processing of inclined surfaces is increasing rapidly. In order to process this curved surface or inclined surface with a conventional woodworking milling machine, for example, as shown in FIG. 3, a milling machine 50 is cut with a certain vertical cut, and then the table is moved to move the work material W. Is laterally moved by a certain amount, and the milling cutter 50 is further vertically cut at that position to obtain a processed product having a fine stepped cross section as shown in FIG.
As shown in, it was necessary to finish the steps with sandpaper and the like, which required a great deal of work and resulted in poor dimensional accuracy.

This invention solves the above-mentioned conventional problems, and an object of the invention is to provide a woodworking milling machine capable of efficiently processing a curved surface or an inclined surface of a wooden product with good accuracy.

(Means for Solving Problems) The woodworking milling machine of the present invention, however, has a vertical spindle head that is supported movably in the horizontal and vertical directions with respect to the bed, and a vertical spindle head that has a spindle for driving the milling cutter. A tilting platform supported by a bed so as to be tiltable around an axis, a rotary platform rotatably supported on the tilting table about a vertical axis orthogonal to the horizontal axis, and a transverse direction orthogonal to the vertical axis. A table that is reciprocally supported on the rotary table, an electric drive device that drives the spindle head horizontally and vertically, an electric tilt drive device of the tilt table, and an electric rotation of the rotary table. A woodworking milling machine comprising a drive device and an electric reciprocating drive device for the table.

(Operation) In the woodworking milling machine of this invention, the electric reciprocating drive device causes the table to move transversely with respect to the rotary table and the spindle head to move in the horizontal and vertical directions. And a three-dimensional relative movement in the XYZ axis directions is obtained, and further, a rotary movement of the rotary base with respect to the tilting base by the electric rotary drive device,
Since the tilting motion of the tilting table with respect to the bed can be combined by the electric tilting drive device, a desired tilted surface and curved surface are formed on the work material by milling.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, 1 is a woodworking milling machine, 2 is a bed which is a base of the milling machine, and 3 is a column which is erected on the bed 2. In the column 3, a post 5 is slidably fitted in a support leg 4 fixed to the bed 2 in a vertical direction (Z-axis direction), and an arm 6 is horizontally attached to an upper end portion of the post 5 in a horizontal direction (Y-axis direction). It is slidably guided. Reference numeral 7 is a Z-axis motor for vertically moving the post 5, and 8 is a Y-axis motor for horizontally driving the arm 6. A spindle head 10 is fixed to the tip of the arm 6 with the spindle 9 directed in the vertical direction (Z-axis direction), 11 is a milling cutter attached to the spindle, and 12 is a spindle driving main motor.

On the other hand, a tilt table 15 is supported on the bed 2 by a bearing 16 so as to be tiltable in the A-axis direction around a horizontal axis (X axis). On this tilting base 15, a rotary base 18 is rotatably rotatable in the C-axis direction around a vertical axis 17 (corresponding to the Z axis when the tilting angle of the tilting base 15 is 0 °) orthogonal to the horizontal axis (X axis). Is supported. The vertical shaft 17 is mounted on the turntable 18.
A table 20 is supported so as to be capable of reciprocating in a traverse direction 19 (which coincides with the X-axis when the rotation angle of the rotary table 18 is 0 ° as shown in the drawing) orthogonal to. Reference numeral 21 is a C-axis motor for driving the rotary table 18 and X is X for driving the table 20 transversely.
The shaft motor 23 is a manual handle for the table 20. FIG. 2 shows the structure of the table 20 and its supporting portion, and 25 is a screw rod driven by the X-axis motor 22,
Reference numeral 26 is a nut fixed to the table 20 by being screwed onto the screw rod 25. Further, 27 is a rotary shaft whose upper end is fixed to the rotary base 18 and which is rotatably supported by the tilting base 15,
Is a worm wheel fixed to the rotating shaft 27, and meshes with a worm 29 driven by the C-axis motor 21. Further, 30 is a clamp device for the rotary table 18, which is used for the rotary shaft 2
The rotating shaft 27 is clamped by clamping the brake plate 31 fixed to 7 by the clamp shoe 32 fixed to the rotary table 18 and the clamp shoe 34 vertically driven by the air cylinder 33. Further, 35 is a semi-cylindrical body portion fixed to the lower surface side of the tilting table 15,
Reference numeral 36 denotes a large gear in the form of a half ring fixed to the body portion 35, which meshes with a small gear 38 driven by an A-axis motor 37 attached to the bed 2. The tilting table 15 is also provided with a clamp device similar to the clamp device 30 for holding the tilted position, but the illustration thereof is omitted.
Reference numeral 40 denotes a suction hole for fixing a work material formed on the upper surface of the table 20, which is connected to a vacuum source via an intake passage 41 provided in the table 20 and constitutes a work material clamping device by vacuum suction. And 42, 43, and 44 are bearings, respectively.

In order to use the woodworking milling machine 1 having the above-described structure, a wood material, which is a work material, is fixed on the table 20 by vacuum suction, and the traverse movement, tilting, and rotation of the table 20 are driven by driving each motor, and the spindle head 10 is horizontally moved. And the vertical movement is performed to perform cutting with the milling cutter 11. At this time, the table 20 can be moved laterally by manually operating the handle 23. In the production of a casting wooden mold, for example, a sloped surface (tapered surface) is often processed like a pay-in mold. In this case, the tilting table 15 is tilted by the A-axis motor 37 by an angle corresponding to the tilted machining angle, clamped, and rotated. The rotation angle of the table 18 is set to 0 °, and the table is fixed by the clamp device 30, and the table 20 is moved in the X-axis direction by the X-axis motor 22, and the spindle head 10 is moved in the Y-axis direction by the Y-axis motor 8. By the vertical movement of the spindle head 10 by the Z-axis motor 7, it is possible to efficiently and smoothly perform inclined surface machining. Further, the processing of the cylindrical curved surface is performed by adding the tilting drive of the tilting table 15 by the A-axis motor 37, and the processing of the curved surface extending in the three-dimensional direction is performed by adding the rotational driving of the rotary table 18 by the C-axis motor 21. It is possible to perform desired curved surface processing. Note that NC control of each motor is particularly preferable because it can achieve easier operation and higher accuracy.

The present invention is not limited to the above-described embodiment, and for example, the support mechanism of each part, the drive mechanism, etc. may have a structure other than the above.

(Effect of the Invention) As described above, according to the present invention, the following effects can be obtained.

(1) The curved and inclined surfaces of wooden products can be processed efficiently and with good accuracy, and the complicated and labor-consuming manual finishing process is almost unnecessary, which contributes to labor saving.

(2) When performing tilted surface processing on a work material that has a tilted surface (tapered surface) like a casting type for castings, the tilting table is tilted by the tilting processing angle and clamped for smooth and high precision. The inclined surface can be efficiently processed, and when the inclined surface is drilled, the clamping can be performed quickly and easily by the clamp of the tilting table.

(3) When drilling a large diameter hole on the top surface of a work piece, or when machining a cylindrical outer circumference, by rotating a rotatable base around a vertical axis, it can be quickly and easily and with excellent accuracy. Can be processed.

(4) It is possible to perform desired three-dimensional curved surface processing on work materials of various shapes other than rod-like shapes to obtain wood products of a desired shape. In particular, the motor of each electric drive device is NC. If controlled, highly accurate three-dimensional curved surface processing can be performed more easily.

(5) The table that clamps the work material is reciprocally mounted on the rotary table. This table is often used for moving in the X-axis direction due to machining of inclined surfaces.
Since the object to be reciprocally driven is only the table and the work material on the table, the electric reciprocating driving device may be of a small size and small capacity, and the table and its guide structure may be small and simple.

(6) Workpieces can be mounted quickly and easily on a horizontal table.

[Brief description of drawings]

FIG. 1 is a perspective view of a woodworking milling machine showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line S--S of the table and its supporting portion in FIG. 1, and FIG. 3 is a processing state by a conventional woodworking milling machine. It is a longitudinal cross-sectional view of a work material showing. 1 ... Woodworking milling machine, 2 ... Bed, 3 ... Column, 7 ... Z
Axis motor, 8 ... Y-axis motor, 9 ... Spindle, 10 ... Spindle head,
12 ... Main motor, 15 ... Tilt table, 16 ... Bearing, 17 ... Vertical axis, 18 ... Rotation table, 19 ... Transverse direction, 20 ... Table, 21 ... C axis motor, 22 ... X axis motor, 25 ... Screw rod, 26 ... Nut, 27 ... Rotating shaft, 28 ... Worm wheel, 29 ... Worm, 36 ... Large gear, 37 ... A-axis motor, 38 ... Small gear.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-54-39280 (JP, A) Actual development S55-63704 (JP, U) Actual publication S58-32889 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A vertical spindle head having a milling drive spindle supported movably in the horizontal and vertical directions with respect to the bed, and a tilting platform supported by the bed so as to be tiltable around the horizontal axis. A rotary table rotatably supported on the tilt table about a vertical axis orthogonal to the horizontal axis, and a table supported on the rotary table so as to reciprocate in a transverse direction orthogonal to the vertical axis. An electric drive device for driving the spindle head horizontally and vertically, an electric tilt drive device for the tilt base, an electric rotary drive device for the rotary base, and an electric reciprocating drive device for the table. A woodworking milling machine characterized by being equipped.