JPH05283214A - Assembly jig for trimmer variable resistor - Google Patents

Abstract

PURPOSE:To freely control a rotation angle of a pair of chucks in an assembly jig for a trimmer variable resistor. CONSTITUTION:When driving an actuator which rotates a spindle shaft 101 180 deg. through a shaft 117, a fixed gear 108 formed on a peripheral fixed shaft 116 of the shaft 117 and gears 104, 105 of the spindle shaft 101 engage with each other, rotating the spindle shaft 101 in the specified direction. The rotation of the gears 104, 105 causes the spindle shaft 101 to rotate through a wound spring 90 and thereby a stopper 103 formed on the spindle shaft 101 and an external stopper 95 of a spindle block 114 are caused to abut each other and then the rotation of the spindle shaft 101 is stopped. By setting the location of the stopper 103 appropriately, a rotation angle of the spindle shaft 101 can be freely selected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to assembly of parts, and more particularly to a jig for assembling a trimmer variable resistor.

[0002]

2. Description of the Related Art Conventionally used assembling jigs of this type have a pair of chucks, and these chucks horizontally invert each other at an angle of 180.degree. The component is picked and placed while moving and performing vertical strokes.

[0003]

In the jig for assembling the trimmer variable resistor having the structure of the conventional example, the moving angle of the pair of chucks is predetermined, and it is not possible to perform the assembling work by changing the angle of the chucks. There were problems such as being impossible.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems. The means for achieving the object will be described below. A pair of spindle shafts (101) equipped with a chuck (100), a means for reversing the spindle shafts (101) by a predetermined angle, and a pick-and-place apparatus for parts comprising a structure capable of sliding the means in the vertical direction, Of the gear group (105, 1) that can rotate the chuck (100) of
04, 108) and a device (106, 103, 90) capable of setting the pair of chucks (100) at a desired angle, and a jig for assembling a trimmer variable resistor.

[0005]

When the entire jig is held in the raised position, the rotary actuator 96 is operated to rotate the shut 117 and rotate the spindle shaft 101 by 180 °, so that the outer peripheral fixed shaft 116 of the shaft 117 is fixed. The spindle shaft 101 rotates in a predetermined direction while the gear 108 and the gears 104 and 105 attached to the spindle shaft 101 mesh with each other. Gears 104, 105
Rotation causes the spindle shaft 101 to rotate through the winding spring 90, and the stopper 103 provided on the spindle shaft 101 and the spindle block 1 are rotated.
The rotation of the spindle shaft 101 is stopped by the contact with the external stopper 95 of 14. By appropriately setting the position of the stopper 103, the rotation angle of the spindle shaft 101 can be freely selected and determined. The so-called spindle rotation angle is regulated.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A jig for assembling a trimmer variable resistor according to the present invention will be described below with reference to the accompanying drawings. When the rotary actuator 96 of the assembly jig is rotated by a known method when the entire jig is in the raised position, the rotation of this actuator 96 is transmitted to the vertical shaft 117 through the coupling 123. The spindle block 114 is attached to the shaft 117 by a key or the like, and the rotational movement of the actuator 96 is controlled by the vertical shaft 117.
The spindle shaft 101 of the spindle block 114 is normally rotated by 180 °. Spindle shaft 10
1 is rotatably provided in relation to the spindle block 114, and a pair of spindle shafts 1
When 01 rotates about the shaft 117, the gears 104 and 105 of the spindle shaft 101 meshing with the gear 108 provided on the fixed shaft 116 formed on the outer periphery of the shaft 117 simultaneously rotate. Therefore, while the spindle shaft 101 having the chuck 100 for chucking the parts revolves around the shaft 117, the pair of spindle shafts 101 themselves also rotate. Reference numeral 137 is the spindle block 1 according to the present invention.
Since it is a known device that can slide 14 up and down, its description is omitted.

Next, the winding spring clutch mechanism which is an important constitution of the present invention will be explained. As described above, in the raised position, the shaft 117 and the spindle block 114 are rotated by the rotation of the rotary actuator 96.
And the spindle shaft 101 rotates 180 °. In response to this rotation, the pair of spindle shafts 1 meshing with the gear 108 formed on the outer peripheral shaft 116 of the shaft 117.
The respective gears 105 and 104 of 01 rotate, and the gear 1
Pins 107 and 106 erected on 04 and 105 also rotate. Since the gear 104 has the same structure and operation as the gear 105, the description thereof is omitted, and only one spindle shaft 101 provided with the gear 105 will be described below.
A spiral spring 90 is superposed on the outer peripheral space of the spindle shaft 101 and fitted as shown in FIGS. 7 and 8. Since the winding spring 90 is mounted on the spindle shaft 101, the rotation of the winding spring 90 also rotates the spindle shaft 101. 7 is a cross-sectional view as viewed in the direction of arrow A in FIG. 2, and FIG. 8 is a cross-sectional view as viewed in the direction of arrow B in FIG. Reference numeral F in the figure indicates the direction in which the force is applied. The pins 107 and 106 provided on the gear 105 are in a state of being sandwiched between the protruding leg portions 92 of the winding spring 90. Next, the relationship between the rotation of the gear 105 and the pins 107 and 106 will be described. When the gear 105 rotates in the clockwise direction of the arrow toward FIG. 3, the rotational force of the pin 107 is transmitted to the pin 106 via the winding spring 90, causing the stopper 103 to rotate in the same direction as the gear 105. Since the stopper 103 is fixed to the spindle shaft 101, the rotation of the stopper 103 is the rotation of the chuck 100 attached to the spindle shaft 101. In FIG. 4, the stopper 103 comes into contact with the external stopper 95 and is in a stopped state, and at the same time, the chuck 100 is stopped.
Also stops rotating. However, since the rotary actuator 96 is configured to rotate 180 °,
Even if the stopper 103 is stopped as shown in FIG.
The coil spring 07 rotates the coil spring 90 to a predetermined position and rotates 180 degrees as a whole. Since the stopper 103 is pressed against the external stopper 95 by the spring force F of the winding spring 90, the chuck 100 attached to the spindle shaft 101 itself can arbitrarily change the angle of the chuck 100. This point will be further described. That is, the spindle shaft 10 equipped with the chuck 100
When 1 is rotated 180 °, the fixed gear 96 and the gears 104 and 105 provided on the spindle shaft 101 mesh and rotate. At this time, the pins 107 and 106 attached to the gears
The rotational force is transmitted to the spiral spring 90 via. Since one end of this spiral spring is attached to the spindle shaft 101, the spiral spring 1 is attached by the spiral spring 90.
01 rotates with the chuck 100. After that, the stopper 103 mounted on the spindle shaft 101 and the external stopper 95 come into contact with each other, so that the spindle shaft 1
The rotation of 01 is stopped. After that, the gears 104 and 105 continue to rotate, but this rotational force is absorbed as internal energy of the spiral spring 90. In this way, the 180 ° rotating force of the rotary actuator is applied to the stopper 103.
The positions of positions 95 and 95 are used to change the angle of the chuck 100 together with the spindle shaft 101. Next, the operation sequence of the entire jig according to the present invention will be described. (1) First, the entire jig is lowered, and the trimmer parts held by the chuck located on the right side in FIG. 1 are assembled by the chuck located on the left side. At this time, the chuck located on the right side simultaneously mounts the parts. Hold it. (2) Next, raise the whole. (3) The related member is rotated 180 ° by operating the rotary actuator. The chuck itself also changes the angle by a predetermined angle. (4) Next, the whole is lowered and the operation of (1) is sequentially performed. It should be noted that the present invention has been described for the time being as to a component assembling jig for a trimmer variable resistor, but it is needless to say that it can be generally used as a component assembling jig as well as a trimmer assembling jig.

[0008]

According to the present invention, by providing the spindle shaft angle changing device to which the chuck is attached, the position of the spindle shaft is displaced according to the condition of the assembling work of the trimmer variable resistor. Compared with the one which does not have the angle changing device, it is possible to take measures according to the situation of the assembled parts, and there is an effect that the speed of the assembling work can be realized.

[Brief description of drawings]

FIG. 1 is a schematic side view of an upper half of a trimmer assembly jig according to the present invention.

FIG. 2 is a side view of the lower half of the trimmer assembly jig according to the present invention.

FIG. 3 is a plan view of a gear and a spiral spring that are a device for changing the angle of a spindle shaft according to the present invention.

FIG. 4 is a plan view showing a state where the gear and the spiral spring shown in FIG. 3 are displaced by a predetermined angle.

5 is a plan view showing a state where the gear and the spiral spring shown in FIG. 3 are displaced at a predetermined angle.

FIG. 6 is a perspective view of a spiral spring.

FIG. 7 is a cross-sectional view seen in the direction of arrow A in the center of FIG.

FIG. 8 is a cross-sectional view seen in the direction of arrow B of the central portion of FIG.

[Explanation of symbols]

 90 Winding Spring 95 External Stopper 96 Rotary Actuator 100 Chuck 101 Spindle Shaft 103 Stopper 104 Gear 105 Gear Gear 106 Pin 107 Pin 108 Fixed Gear 114 Spindle Block 116 Fixed Shaft 117 Shaft 123 Coupling 137 Vertical Sliding Device

Claims (3)

[Claims] 1. A pick-and-place apparatus for a component, comprising a pair of spindle shafts having chucks mounted thereon, means for reversing the spindle shafts by a predetermined angle, and means for vertically sliding the means. And a device capable of setting the pair of chucks at a desired angle, the jig for assembling a trimmer variable resistor. 2. The jig for assembling a trimmer variable resistor according to claim 1, wherein the gear group includes a gear formed on the outer circumference of a fixed shaft of the shaft and a gear provided on a pair of spindle shafts. 3. A pair of winding springs that can be locked to a pair of pins provided on a gear, and the position of the stopper when the stopper of the spindle shaft abuts the stopper formed on the spindle block when the gear rotates. 2. The jig for assembling the trimmer variable resistor according to claim 1, wherein the angle of the chuck mounted on the pair of spindle shafts is determined by setting to 1.