JPS6327128B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a work holding jig for fine manual work, and particularly to a rotation mechanism capable of regulating the work posture of a multi-head index head.

(b) Background of the technology In many cases, fine manual work in the mass-produced electronic component manufacturing process is performed by holding the workpiece in an appropriate posture with a holding jig, and there is a tendency to use multiple jigs to improve work efficiency. I'm getting used to it. It has been desired to provide a simple and highly reliable workpiece posture regulating means that uniformly regulates the posture of the workpiece accompanying the index motion of a multi-head.

(c) Prior art and problems Among the above-mentioned workpiece posture regulating means, the rotational position control method is usually performed using a satellite rotation mechanism, but the positioning mechanism is often complex, and many general-purpose multi-head jigs are used in transfer jig lines etc. The disadvantage of using this method is that the jig costs are high.

(d) Object of the Invention The object of the present invention is to provide a simple and highly reliable rotation mechanism for commonly regulating workpieces in a multi-head holding jig.

(e) Structure of the Invention The present invention has a main rotary stand which is a stand on a conveying pallet, a main turntable mounted rotatably around a stud pin installed in the center of the main turntable, and a main turntable mounted on the main turntable. A tiltable base plate extending radially at equal angles from the center of rotation and tiltably supported by a hinge fulcrum in a direction perpendicular to the direction of its extension, and an outer end of each tiltable base plate serving as a child rotation seat at its center. It consists of a plurality of child rotary tables each having a chucking head rotatably mounted on a planted stud pin, and further engaged at a predetermined position between the sliding surface of the master rotary seat and the master rotary table. A positioning means consisting of a notch hole and a steel ball biased by a compression spring is provided, and a notch hole engaging at a predetermined position between the sliding surfaces of the child rotary seat and the child rotary table and a steel ball biased by a compression spring is provided. The invention is characterized in that a positioning means consisting of a steel ball is provided.

(f) Embodiments of the Invention Preferred embodiments of the present invention will be described in detail below with reference to the drawings. Note that, in order to simplify the drawing, a two-head holding jig will be described.

FIG. 1 is a plan view of a two-head holding jig rotation mechanism according to an embodiment of the present invention, and FIG. 2 is a partially sectional side view, in which 1 is a chuck head, and 2 is a child rotary table. , 3 is a tiltable substrate (child rotating seat), 4 is a main rotating table, 5 is a stand (main rotating seat),
6 is a pallet, 7 is a steel ball, 8 is a compression spring, and W is a workpiece.

In the figure, a parent rotary table 4 is mounted on a parent rotary seat on the upper surface of a stand 5 disposed on a conveying pallet 6, and is rotatable about a stud pin 51. A substrate 3 is disposed on the main rotary table 4 and extends radially at an equal angle (180 degrees) to the center of rotation. The substrates 3 are configured to be tiltable by a hinge fulcrum 41 in a direction perpendicular to the direction of extension of the substrates 3 so as to take a posture suitable for work, and the outer end of each substrate 3 is attached to a child rotating seat. A stud pin 31 serving as a center of rotation is planted in the center of the rotary table, and a child rotary table 2 is mounted thereon. A chuck head 1 is disposed on a plurality of sub-rotary tables 2 placed on the sub-rotary seats, and the workpiece W is moved by a vice mechanism 11 of the head.
is held in a predetermined posture. In the multi-head holding jig having such a configuration, a plurality of gripped workpieces can be transported to a predetermined work position by arbitrary revolution of the main rotary table 4 and arbitrary rotation of the child rotary table 2.

Next, a mechanism for controlling the posture of the workpiece W gripped by the tracking head 1 will be explained. The number of tracking heads disposed on equal diameter circumferences facing each other on the sliding surfaces of the main rotary table 4 and the main rotary seat 5 and the sliding surfaces of the child rotary table 2 and the child rotary seat 3. There are notch holes 42, 21 on the side of the rotary bases 4, 2 into which the steel ball 7 sinks by a predetermined amount, and a compression spring 8 on the side of the rotary seats 5, 3 to press the steel ball 7 to a position indexed by an integral multiple of .
Steel ball indexing holes 52 and 32 each containing a steel ball are provided to constitute a rotational positioning mechanism. In such a configuration, the index motion of the tracking head is positioned by pressing the steel ball into the notch hole 42, and the posture of the positioned workpiece is controlled by the notch of the child rotary seat. This can be easily achieved by selecting the hole 21 and the steel ball indexing hole 32 of the child rotary seat.

(g) Effects of the Invention As explained above, the rotation mechanism of the multi-head holding jig according to the present invention has a simple structure, so it can provide a workpiece gripping posture control structure that is inexpensive, highly reliable, and has good workability. .

[Brief explanation of drawings]

FIG. 1 is a plan view of a two-head holding jig rotation mechanism according to an embodiment of the present invention, and FIG. 2 is a side view thereof. In the figure, 1 is a tracking head, 2 is a child rotary table, 3 is a tiltable base plate (child rotary table), 4 is a main rotary table, 5 is a stand (main rotary table), 6 is a pallet,
7 is a steel ball, 8 is a compression spring, and W is a workpiece.

Claims (1)

[Claims] 1 The stand 5 on the conveying pallet is used as the main rotating seat, and the stud pin 5 is installed in the center of the main rotating seat.
A main rotary table 4 is rotatably mounted on the main rotary table 4, and a hinge fulcrum 41 extends radially at equal angles from the rotation center on the main rotary table 4 and is tiltably supported by a hinge fulcrum 41 in a direction perpendicular to the direction of extension. The outer end of each tiltable base plate 3 is used as a child rotation seat, and the stud pin 3 is implanted in the center thereof.
A tracking head 1 rotatably mounted on 1
It further comprises a notch hole 42 that engages at a predetermined position between the sliding surfaces of the parent rotary seat and the parent rotary table 4, and a steel plate biased by a compression spring 8. A positioning device is provided with a positioning means consisting of a ball 7, and a notch hole 21 that engages at a predetermined position between the sliding surfaces of the child rotary seat and the child rotary table 1, and a steel ball 7 biased by a compression spring 8. 1. A rotating mechanism for a multi-head holding jig, characterized in that it is formed by interposing means for rotating the holding jig.