JPS6090682A - Automatic feeder for tools - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic tool feeding device, and more specifically to an automatic tool feeding device that supports tools on a movable block and enables machining or work at a required position. Regarding the supply device.

BACKGROUND ART In various automatic machines such as robots, it is necessary to move a tool or a workpiece, such as a drilling machine or a welding machine, to an arbitrary position and accurately stop it at a predetermined working position.

Furthermore, in the past, the tools and the like were moved and stopped by controlling the operation and stopping of motors and hydraulic actuators.

Due to these operating inertias, the stopping position of tools cannot be determined,
In order to accurately stop the motor at a set position, it is necessary to repeatedly activate and deactivate the motor, etc., resulting in a problem that the control speed becomes slow.

Furthermore, if the control speed is increased, there is a drawback that the control device becomes costly and expensive.

Furthermore, in order to perform the above-mentioned movement in an arbitrary direction, a large number of motors, etc. are required, which not only requires multiple configurations, but also with the movement and stop device up to this point, T animals can be moved in one position at the stop position of the moving block. There was a problem that only work could be executed.

The present invention has been made by focusing on these conventional problems, and provides a tool that can arrange a plurality of independently movable flocks in parallel, and can arbitrarily and reliably hold the stopping position of each block. The purpose is to provide an automatic feeding device.

In order to achieve this objective, the present invention includes a plurality of sliding frames installed on a fixed ceiling so as to be movable in the left and right directions, and these sliding frames are equipped with a motor and a ball nut driven by the motor. is screwed into the screw rod of the spear 1 installed on the fixed ceiling, and a guide rail and the screw rod of the fang 2 are provided in the front and back direction below the slide frame. A motor provided on the tool mounting flock guided along the guide rail and an oar nut rotated by the motor are screwed together, and the flock is provided with suction means for the fixed ceiling.

Embodiments of the present invention will be described below with reference to the drawings.

Figure 2.1 and Figure 2 show the entire structure, and are shown as an example of a workbench unit.

In the figure, reference numeral 1 denotes a fixed ceiling, the lower surface of which is a smooth surface, and the upper surface provided with three reinforcing rails 2 that reinforce the fixed ceiling 1 and one kite rail 3 that also serves as reinforcement.

Reference numeral 4 denotes a pair of supporting members protruding from the left and right ends of the upper surface of the fixed ceiling l, and the ends of the screw rods 5 are supported and fixed to the supporting members 4.

6.7 is a sliding frame, and each vertical guide plate 6aj
7a, each pair of side plates 6A, 7b, horizontal guide plates 6c, 7 protruding from each side plate 6b, 7b;
c and connecting plates 6d and 7d that hold each pair of side plates 6h and 7h.

The vertical guide plates 6α, 7a have guide notches 6e, 7e.
are provided, which are slidably fitted into the kite rail 3.

The lower surfaces of the vertical kite boards 6α, 7α and the front and rear edges of the horizontal kite board (fixed ceiling between 3c and 7c) are slidably inserted.

Each of the connecting plates 5d and 7d has an L-shaped receiving plate 8.
9 is fixed, and each - motor 10 is fixed to this mounting plate 8,9.
A pulley [2] is fixed to the rotating shaft 11 of each motor [0], and a heald 14 is tensioned between each pulley 12 and a pulley-shaped hole nut 13 screwed onto the screw rod 5. has been done. In addition, Whole Nut 13
is attached to the mounting plates 8 and 9 so as to be rotatable and not to be displaced in the axial direction. Ushita, screw rod 5
passes through the center of the lower part of the mounting plates 8 and 9.

Therefore, by 100 rotations of the motor, the pulley 12
As the pulley 13 rotates, the slide frames 6 and 7 move in the front and back directions, and by individually controlling the operation of each of these motors, different speeds can be achieved in different directions. The slide frames 6 and 7 can be moved with .

On the other hand, guide rails 15j16 and screw rods 17, 18 are installed at each pair of site plate ends 6b, 7b facing the lower part of the fixed ceiling 1 in a direction C (front-back direction) orthogonal to the screw rod 5.

Each kite rail 1.5, 16 is configured with a cross-sectional shape,
Tool mounting block 1 is placed around this and screw rod 5.
9.20 is provided.

Among these, the details of the tool attachment flock 19 are explained in the third section.
This will be explained with reference to FIGS. 5 to 5.

That is, the block 19 is composed of an upper plate 21α located on the upper surface of the kite rail 15, side plates 21J and 21G located on both sides and extending to the lower part of the screw rod 17, and a bottom plate 21d, and furthermore, a motor 22 is installed inside these. It is provided.

The motor 22 integrally includes a protrusion 23 whose upper portion slides and fits into the cross-sectional opening of the kite rail 15, and a protrusion 24CL which enters and exits into the notch 24 provided in the bottom plate 21 (i).

Additionally, this motor 22 has a stator 26 which is a field winding attached to the inside of the case 25, a rotor 27 which is an armature, and a cylindrical rotor shaft 28 through which the screw rod 17 is inserted.
The main body includes a flaket 30 that supports both ends of the rotor shaft 28 via hair rings 29, and a hole nut 32 that is fixed to one end of the rotor shaft 28 and has a screw hole 31 on its inner surface that is screwed into the screw rod 17. It is configured as.

Therefore, the motor 22 is fixed in the axial direction with respect to the block 9, and movable in the vertical direction (actually, the block 19 moves up and down with respect to the motor 22 in a relative relationship). 9, the rotation of the rotor shaft 28 causes the hole nut 32 to rotate as well.
The flock 19 can move in the axial direction (back and forth direction) along the kite rail 15. As a result, the flock 19 can be moved by the motors 10 and 22 to any position on the lower part of the fixed ceiling 1 in the longitudinal and lateral directions.

Next, the upper surface of the block 19, specifically the upper plate 21
(An intake hole 41 is provided on the upper surface of Z, and a flexible sealing material 42 that tightly contacts the lower surface of the fixed ceiling 1 is attached around the upper surface. This sealing material 42 has a tube shape. The reed is normally in a contracted state, and when air is supplied inside, it expands and comes into close contact with the lower surface of the fixed ceiling 1. 43 is an air supply port to the sealing material 42.

In addition, air injection holes 44°45.
6 is provided, and the kite rail 1 is provided when the flock 19 is moved.
Air is injected between 5 and 5 to create an air film, and floc 19
can be moved with low friction relative to the guide rail 15.

Note that the same configuration is used for the guide rail 3 and the vertical kite board 6a.
, 7a between the kite notches 6e, 7e, or further between the fixed ceiling 1 and the vertical guide plate 6α.

7α as well as fixed ceiling 1 and sight plate 6b.

It is best to apply between 7b.

47 is an intake hose, 48 is an ethical coupon serving as a vacuum source, 49 is a switching hartz, 50 is an air supply source such as a compressor, 5] is an air supply hose, 52 is a switching hartz, 53
54 is a reculator, 54 is an air supply source, 55, 55a
5 is an air supply hose, 56 is a switching valve, 57 is a reulator, and 58 is an air supply source.

In the automatic tool supply device having the above configuration, in FIGS. 1 and 2, the blocks 19 and 20 are moved in the left and right direction by moving the hole nut 13 along the screw rod 5 using the motor 10. The forward and backward movement is performed by moving the hole nut 32 along the screw rod 17 by the motor 22. In either case, air is injected from each air injection port 44, 45, 46, and a non-contact In this state, the block 19 is moved along the guide rail 15.

Next, when stopping the flock 19 at a predetermined position,
When each motor 10j22 is in a stopped state, the above air injection is stopped.

Subsequently, the switching valve 56 is switched as shown in FIG. 5, and air is supplied from the air supply hose 55α to the air supply port 43 of the sealing material 42. At this point, the sealing material 42 expands and its upper end comes into close contact with the lower surface of the fixed ceiling structure. After confirming this, compressed air is sent from the compressed air supply source 50 to the NJF coupon pump 48, and the upper surface of the flock 19 surrounded by the sealing material 42 is evacuated through the intake port 41 and the intake hose 47. 】9 is raised to the fixed ceiling 1 side and brought into close contact with the lower surface thereof.

Therefore, the position of block 19 is kept completely stopped,
A press block and other tools attached to the upper part of the flock 19 allow the work to be carried out stably.

Furthermore, when releasing the stationary fixation of the block 19, the air supply from the compressed air supply source 50 to the NJF coupon pump 48 is stopped, and the upper surface of the block 19 surrounded by the sealing material 13 is exposed to the atmosphere. Furthermore, if the supply of engineering air to the sealing material 42 is stopped, the block 19 will fall under its own weight, return to the state shown in Figs. 2 and 5 and be moved freely thereafter.

As described above, in the present invention, a plurality of slide frames are movably attached to a fixed ceiling and guided in the front and back directions of the fixed ceiling, and these slide frames are provided with a motor and a hole nut driven by the motor. These pole nuts are screwed to the first screw rods installed on the fixed ceiling, and kite rails and second screw rods are connected to the first screw rods on each of the slide frames facing the lower part of the fixed ceiling. 3, a motor provided on the tool supplementary block guided by the kite rail and a hole nut rotated by the motor are screwed into the second screw rod, and
The above-mentioned tool mounting block is configured to be equipped with suction means for the fixed ceiling, so that each of the plurality of tool mounting blocks can be independently transferred to any position in the front, rear, left, or right direction, and the position after the transfer can be stably maintained. This provides effects such as being able to perform various operations using tools in a stable state.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of the entire automatic feeding device, FIGS. 2 and 2 are downward perspective views, FIG. 3 is a vertical sectional view of the motor in the block, and FIG. and the fifth
The figure is a sectional view showing the operating state of the main parts. 1... fixed ceiling, 5... first screw material, 6,
7...Slide rod, 10...Motor, J3...Hole nut, 15.16...Guide rail, 17-,
18... Second screw rod, 19... Tool mounting block, 22... Motor, 32... Hole nut,
41...Intake hole, 47...Intake hose. Patent Applicant Co., Ltd. Tae Toku Representative Patent Attorney Akio Yamamoto Figure 4 Spear 5 Figure

Claims (1)

[Claims] A plurality of slide frames are attached to the fixed ceiling so as to be movable in the left and right direction, and each of these slide frames is equipped with a motor and a hole nut driven by the motor. A guide rail and a screw rod 2-2 are respectively installed in the front and back direction on each slide frame which is screwed onto the screw rod 1 and faces the lower part of the fixed ceiling. A motor for mounting tools guided by a kite rail on a block, and a pole nut rotated by the motor are screwed together, and the tool mounting block is equipped with suction means for the fixed ceiling. Feeding device.