JPS58102609A - Head device for head replace type machine tool - Google Patents

Abstract

PURPOSE:To enable working on a slant surface of a work not perpendicular to the moving direction of a rail by providing a work unit on a mount frame movably back and forth in the slant direction to the moving direction of the movable rail by means of an oil hydraulic cylinder. CONSTITUTION:When a drive unit C is advanced, first a drive shaft G, feed oil port L, docking member M in front of the unit C are connected to the coupling 9, joint 23, positioning pin 16 on a loaded face of mount frame 1 respectively by means of the constant stroke relative retreat movement of a movable rail E. By the advance of the unit C, a head device is advanced to a predetermined position together with the rail E, and individual work units 2, 2' are advanced to the slant surface of a work W to perform predetermined working.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a head device for a convertible head type single machine machine.

Conventionally, as a machine tool with an exchangeable head, for example, as shown in FIG. A block rail (F) consisting of a rear fixed rail (D) and 10,000 movable rails (g) that move forward and backward with the drive unit (0) K (111) Shape rail (F
) with ll head devices mounted on it, and any one 7tt
a The movable rail (R) can be freely selected on the movable rail (R).
B) Move the head device selected above forward together with the armpit motion rail (B) toward the workpiece (W) on the jig table (B) by advancing the drive unit (0), and move the iEf head device Workpiece (W) (7) Machining'? Those who tried to make it T are known.

Here, the head device is mounted on a frame frame (a) mounted on an annular rail (F), and a coupling (b) on the rear side connected to the drive shaft (G) on the front side of the drive unit (0). a multi-function unit (d) with a gearbox (c) driven by the power input from the coupling (b);
On the front side of the frame (a), there is a movable rail (
The workpiece surface is arranged so as to coincide with the advance/retreat direction of E), and the holes on the work surface perpendicular to the advance/retreat direction of the co-moving rail (B) are made 1111 so that machining can be performed when the co-moving rail (B) advances.

Therefore, on the work surface perpendicular to the direction in which the movable rail (R) encounters the movable rail (R), an appropriate head device [selective machining] can be applied on the movable rail (1). The workpiece (W
) of l! Although it is possible to process IIN surfaces, sloped surfaces are generally processed using a special machine tool.

In this case, on the trestle frame (,),! I] The machining unit is tilted 1m in the axial direction with respect to the forward and backward direction of the moving rail (E).
ゝ【Installed and allows it to move forward and backward in the axial direction!
It is conceivable to advance the Q-movement rail (B) to a certain position and then advance the machining unit in the axial direction so that the workpiece (W) can be machined in an inclined direction. The problem is how to transmit the power from the drive unit to the processing unit that moves back and forth.

In particular, when multiple machining units are attached to the mount frame (heat) in the inclined direction for simultaneous machining of multiple inclined surfaces of the workpiece (W), each machining unit is mechanically powered via a gear. [If transmitted, the transmission mechanism would be complicated and large, making it difficult to mount it on the pedestal frame (a).

The developed tJA focuses on the fact that if the machining unit is hydraulically actuated, the machining unit can be driven simply by installing hydraulic piping and without the need for a complicated transmission mechanism. The purpose of this is to provide a head device that can be mounted on a mount and can be steered and that can process workpieces on inclined surfaces. A vermilion stand frame mounted on the annular rail of a machine tool with an exchangeable head, which is provided with an annular rail surrounding the pipe and consisting of a fixed rail at the rear and a movable rail at the front that moves forward and backward along with the drive unit. In the well-equipped head device, a processing unit is attached to the front of the mount frame with one axis inclined in one direction with respect to the advancing and retreating direction of the movable cough rail, and the 1wX processing unit is configured to be a hydraulically operated type operated by a hydraulic motor, It is made up of a hydraulic cylinder that allows it to move forward and backward in the axial direction.

In this case, it is possible to install a hydraulic pump on the drive unit of a machine tool with a replaceable head, and supply oil to the hydraulic motor and hydraulic cylinder of the machining unit. This requires changes in the design of existing machine tools.

Therefore, the second invention aims to provide a head device that does not require such a design change. The present invention is characterized in that a hydraulic pump and an oil tank are provided which are connected to each other through a coupling plate on the back side of the mount frame, and the oil from the pumping tank is supplied to the hydraulic motor through the hydraulic pump. .

Next, the present invention will be explained based on illustrated embodiments.

Fig. 2 shows the head assembly of the present invention mounted on a machine tool with an interchangeable head type similar to the above-mentioned No. 1. To explain, an index table (I) is generally placed on a fixed frame (I) on the base and above an annular rail (F) on the upper side, and the rotation of the table (I) moves the annular rail. Any one of the plurality of head devices mounted on (F) is selected on the movable rail (Iil).
) to the cylinder (J)? # When the drive unit (0) is moved forward with its advance/retreat cylinder (K), the drive unit (0) is attached to the movable rail (B) first.
given a constant stroke retraction relative to
Thereafter, the drive unit is configured to provide forward motion accompanied by (0)K.

In the head device II'i, the frame frame (1) mounted on the annular rail (F) is increased by 1 ft%, and although this point is different from the conventional system described above, according to the present invention, the frame frame (1) is increased by 1 ft%. (1;
A machining unit (2) is mounted on the front surface of the movable rail C with its axial direction inclined relative to the advance/retreat direction of each movable rail c. Hydraulic cylinder (can freely move forward and backward in the axial direction).

The one shown in the figure has a mounting frame (1), a multi-axis machining unit (2) at the top of the front, and a single-machining unit (2') at the bottom of the front.
The multi-processing unit (2) is equipped with a unit main body (6) that also serves as an ear box and is equipped with a hydraulic motor (3) as shown in JIII4. The guide bar (8) of the supporting shaft (7) to be attached is slidably supported and moved forward and backward by a hydraulic cylinder (4) attached to the wrinkle support frame (7).
The unit body (5') is moved forward and backward by the hydraulic cylinder (4') attached to the bracket (6') fixed to the mount frame (1) K, and the unit body (2') is Although not shown in the figure, the cylinder/(4')
) through the output 11b of the hydraulic motor (3') on its back.
The spline is secured so that the K finger can be moved freely.

In this case, the mount frame (1) is equipped with a lubrication joint on the back that is piped to each hydraulic motor (!13 (3) or each hydraulic cylinder (4) (4'), and a hydraulic pump is connected to the drive 1, and the pressure oil from the scissor hydraulic pump is supplied to each hydraulic motor (31 (3')) and each hydraulic cylinder (4) (4) via a delubrication joint.
In the one shown, the mount frame (1) has &51! As shown in Figure 1, a hydraulic pump 010 on the IJ side is mounted on the drive shaft (G) on the front side of the drive unit (0) through the coupling (93) on the back side of the stand frame (11), and the cough stand The internal space of the frame (1) is formed into a tm tank (b),
(0) t- Each hydraulic motor (31 (3') and each hydraulic cylinder (4) (4'
The mount frame (1) should be fully lubricated.
In, all! As shown in Figure 6, each processing unit (21
(2') An oil cooler (b) was installed that used the cutting fluid pipe refrigerant to be supplied.

Is this t? In detail, the mount frame (1) is provided with a 1-in. Provide a section in the middle, and connect each hydraulic motor (3N3') to this section.
The oil cooler (
b) [Configure.

In addition, control Fi of the forward feed speed and rotational speed of each processing unit H21 (2'), control of each hydraulic cylinder 1 (4') and each hydraulic motor (31 (3') -% feed M) I will do it, but
These operations are performed by sequence control by the operation of the air limit valve (2) (2') installed in each processing unit (2'), and the air pressure used in this control system is controlled by the docking member (2') on the front of the drive unit (0). M) is supplied via positioning pins 1llllI on the back of the mount frame (1) that fit into the mount frame (1). The docking part W (M) should be prevented from getting stuck with foreign matter when mating with the 1-positioning bit. (Conventionally, compressed air is supplied 4 times, so this compressed air is used to perform sequence control. .

In the drawings, α'I) indicates a processing unit control box, and OS indicates an oil pressure %-rotation control hub 5 (2), an oil filter 1.

Next, the operation thereof will be explained in detail. When the drive unit (0) is advanced from the state shown in the second figure in which the head device of the present invention is selected on the movable rail (B), first, the movable rail (ml) is moved forward.
The drive shaft (G1) on the front side of the drive unit (0) with the relative backward movement of the constant stroke described above (G1. (98 cutting enemy joint (2) 1 positioning pin -
When the drive unit (C) continues to move forward, the head device II is moved forward together with the movable rail (13).

When the machine moves forward to the predetermined position shown in Figure 3-, the hydraulic pump wheel is operated by the power input through the coupling (9) pipe, and each machining unit (21) is driven by two hydraulic motors (3) ( 3
Pressure oil is supplied to the hydraulic cylinders (41 (4')), and each machining unit (21 (2') is fed forward toward each inclined surface of the workpiece (W) on the jig table (B). There are four operations and one rotation operation, and a predetermined processing is performed on each of the inclined surfaces.

At this time, the cutting fluid from the cutting fluid joint is supplied to the tool of each machining unit (21 (2')).

The oil in the oil cooler is cooled using this cutting fluid as a refrigerant.

As described above, according to the present invention, the machining unit is installed on the pedestal frame so that it can freely encounter the inclined direction of the workpiece that is not perpendicular to the advancing and retreating direction of the movable rail using a hydraulic cylinder. obtained by processing to
The surface 41m machining unit is configured to be hydraulically operated by a hydraulic motor, and does not require a complicated transmission mechanism to transmit mechanical power to the mount frame.
Even when installing several machining units, it is easy to connect the hydraulic piping to the hydraulic motor and hydraulic cylinder of each machining unit, and it is easy to mount it on the pedestal frame.

The drive unit is equipped with a hydraulic pump connected via a coupling 1 on the back of the drive unit and an oil tank, so there is no need to change the configuration of the machine tool itself, and it can be used with existing machine tools. It has an advantageous effect when it can be applied to the machine.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway view of a conventional head device mounted on a head convertible type 1 machine tool, and Figure 2 is a cross-sectional view of the head convertible type 1 machine.
Fig. 3 is a partially cut-away side view of the head of the present invention mounted on a machine tool, Fig. 3 is a partially cut-away side view of the head in its operating state, and Fig. 4 is a processing unit mounted on the head device of the present invention. FIG. 5 is a cutaway side view of the processing unit of the head device of the present invention, and FIG. 6 is a front view thereof. (A)...Base, (B)...Jig stand. ((3)... Drive unit% (D)...
・Fixed v-ru. (F')...Movable rail, (F')...
・Annular rail, (G)... Drive shaft. (11... mount frame% (21(2')...
...Processing unit, (313') ...Hydraulic motor. (41 (4')...Hydraulic cylinder. (9)...Coupling, (to)...
Hydraulic pump. Qυ・・・Oil tank, (2)・・・Oil cooler. 2 people outside

Claims (1)

[Scope of Claims] 1. On the base, surrounding the drive unit tube that can move forward and backward toward the jig stand in front, there is a fixed rail on the vk side, and a movable rail in the front that moves forward and backward along with the drive unit. In a head device which is equipped with a stand mounted on the annular rail of a reversible head type machine tool which is provided with a block rail consisting of. On the front surface of the pedestal frame, the machining unit is mounted on the front side of the mount frame, and the machining unit is configured to be hydraulically operated by a hydraulic motor. , a head device for a machine with an exchangeable head, which can be moved forward and backward in one direction using a hydraulic cylinder. 2. On the base, surrounding the drive unit that can move forward and backward toward the jig stand in the front, there is a block rail consisting of a rear one-leg rail and a front WJ rail that moves forward and backward along with the skeleton drive unit. A head device equipped with a mount frame mounted on the annular rail of a head-changeable machine machine, wherein: - the front surface of the mount frame is inclined in the pivoting direction with respect to the advancing and retreating direction of the movable rail; When the machining unit is attached to the machining unit, the M machining unit is configured to be hydraulically actuated by a hydraulic motor and is movable in the axial direction with a hydraulic cylinder, and the front drive unit of the drive unit is attached to the mount frame. An oil pressure indicator and an oil tank are provided on the shaft, which are connected via a coupling on the back side of the mount frame, and the oil from the oil tank is
1. A head conversion type head device for a machine tool, characterized in that supply is supplied to a cough hydraulic motor and the hydraulic cylinder via the hydraulic pump.