JPS61273418A - Work turnover device - Google Patents

Abstract

PURPOSE:To aim at simplification in structure and improvement in operation efficiency, by installing a pair of holding devices, free of rotation around a shaft in parallel with a conveying direction, in a lower end of a slider lifting vertically with the conveying direction as the constitution, in case of a turnover device for electronic parts and so on. CONSTITUTION:When the work 15 transferred by a conveyor 1 hits a stopper 45 and comes to a stop, a first slider 13 goes down. Next, a second slider 20 moves in an access direction by a cylinder 24, holding the work 15 with holding members 30 and 31. At this time since a coil spring 21 is stronger than another one 22, the work 15 is pressed in a right direction on illustration by the holding member 30, separating from the stopper 45. Next, the first slider 13 is made to go up, rotating these holding members 30 and 31 with a pinion 33, an air cylinder 35, a rack member 36, etc., and the work 15 is turned over. Then, the slider 13 is put down and returned to the conveyor 1. With this constitution, efficient improvement is well promoted.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a work reversing device for reversing a work object (hereinafter referred to as a work), such as an electronic component, while the work is being transferred.

BACKGROUND ART In a production line, workpieces are transferred by a conveyor or the like, and the workpieces are processed while being transferred. Depending on the content of the work, it may be necessary to turn the workpieces upside down. Conventionally, when reversing a workpiece, this has been done manually by a single worker or by using an extremely expensive robot arm, etc., which increases the cost of the entire production line and makes it difficult to improve the efficiency of one work. This was one of the issues that needed to be resolved above.

Summary of the Invention The present invention has been made in view of the above points, and its purpose is to provide a work reversing device that enables cost reduction and improvement of work efficiency throughout the production line. be.

The workpiece reversing device according to the present invention includes a first slider that can freely reciprocate in a direction substantially perpendicular to the workpiece transfer direction;
a first drive means for driving the first slider; a pair of second sliders provided on the first slider so as to be relatively movable in the workpiece transfer direction; and a second drive means for relatively driving the pair of second sliders. 2 driving means; a pair of gripping members rotatably provided on each of the pair of second sliders to grip the workpiece about a rotation axis parallel to the workpiece transfer direction; and a pair of gripping members for rotating the gripping member. It is characterized by having a rotation means.

Embodiment Hereinafter, a work reversing device and its peripheral members which are embodiments of the present invention and which are incorporated into a production line will be described with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, a support 3 extending upward (in the direction of arrow Z) is attached to a base member 2 that supports a conveyor 1 serving as a workpiece transport means. Pillar 3
For clamper A5. A mounting plate 8 is attached via the rod 6 and clamper B7. Note that the clamper A5 can be moved along the support column 3, and the relative positions of the rod 6 and the clamper B7 with respect to the clamper A5 can be adjusted. A pair of guide shafts 10 extending in the vertical direction (the two directions of the arrows and the opposite direction) are provided on the front surface of the mounting plate 8, and a first slider 13 consisting of a block 11 and a plate 12 is attached to the guide shafts. It is attached so that it can move freely back and forth. However, the direction of the reciprocating movement of the first slider 13 is perpendicular to the flow direction of the conveyor 1, that is, the transport direction of the work 15: L.

The block 11, which is a component of the first slider 13, is equipped with a cylinder mechanism (not shown).

The pair of guide shafts 10 are hollow, and the first slider 13 is driven by supplying compressed air to the cylinder mechanism through the inner space of one of the guide shafts. In addition, the compressed air is controlled by the speed controller 16.
Flows into the guide shaft 10 via.

The cylinder mechanism described above is referred to as a first drive means.

A support plate 17 is attached to the lower end of the plate 12, which is a component of the first slider 13, and a guide shaft 18 extending along the workpiece transport direction: L is fixed to the support plate. There is. A pair of second sliders 20 are slidably attached to the guide shaft 18. Each second slider 20 (has a parallel portion 20CL parallel to the workpiece transport direction: L, and a vertical portion 20b that is perpendicular to the parallel portion and extends downward in this case).

Each second slider 20 has a pair of coil springs 21. connected to a pin 20G projecting from each second slider.
22, they are urged toward each other.

An air cylinder 24 is attached to the lower end of the plate 12 and extends in the vertical direction (in the direction of the arrow 2 and the opposite direction). A point-shaped enlarged diameter portion 24b is formed at the tip of the rod 24CL of the air cylinder 24, and the enlarged diameter portion is attached to a ball bearing 25 provided at each opposing end of the second slider 20 of the first and second sliders. engaged. As is clear from FIG. 3, the ball bearing 25 is attached to the second slider 20.
Parallel part 20 (bracket 26 on L, pin 2
7 and a collar 28.

The air cylinder 24 acts as a separating means for separating the pair of second sliders 20 from each other. This air cylinder 24 and a pair of coil springs 21, 22 . ! : constitutes a second driving means for relatively driving the pair of second sliders 20.

A pair of gripping members 30 and 31 are provided at each lower end of the pair of second sliders 20 to be rotatable about a rotation axis parallel to the workpiece transport direction: L.

The gripping members 30, 31 are for gripping the workpiece 15, and the portion that grips the workpiece 15 is formed into a disk shape, and the disk-shaped portions 30α and 31cL are provided with rubber to prevent the workpiece 15 from falling off. Board 30b.

31b is attached.

Of the pair of gripping members 30 and 31 provided, a pinion 33 is fitted into one gripping member 31 and is fixed to the gripping member by a spring pin 34. As is particularly clear from FIG. 4, the pinion 33 meshes with a rack member 36 that is reciprocated by an air cylinder 35. Note that the rack member 36 includes a rack guide 37 fixed to the lower end of the air cylinder 35.
guided by.

The above-mentioned pinion 33, air cylinder 35, rack member 36, rack guide 37, and peripheral small members related thereto constitute a rotating means for rotating one gripping member 3031.

As shown in FIGS. 1 and 2, a disk-shaped sensor plate 39 with a slit (not shown) is attached to the outer end of the gripping member 31.

Further, a photosensor 40 is provided corresponding to the sensor plate. These sensor plate 39 and photosensor 40 are connected to both gripping members 30, 31 . Therefore, it is for detecting the rotation angle of the workpiece 15. FIG. 5 shows the view from the v-■ arrow in FIG. 1, and as shown in FIG. A photosensor 43 is provided correspondingly. This sensor plate 42 and photosensor 43
is for detecting movement of the second slider 20. Although not shown, a detection means for detecting movement of the first slider 13 is also provided.

Next, the operation of the work reversing device having the above configuration will be briefly explained.

As shown in FIG. 1, the workpiece 15 transferred by the conveyor 15 is prevented from being transferred by a stopper 45 attached to the conveyor. When a detection means (not shown) detects that the workpiece 15 has been stopped from being transferred and has stopped at the reversed position, the first slider 13 is lowered. However, FIGS. 1 and 2 show a state in which the first slider 13 has completed its descent. Next, the rod 24 of the air cylinder 24 is pulled, and the workpiece 15 is gripped by the gripping members 30, 31 with the urging force of the coil springs 21 and 22.

Here, a pair of coil springs 21 and 22 are provided.
Each biasing force is different, and in this case, the biasing force of the coil spring 21 is larger. Therefore, the second slider 20 is moved until the stopper 46 (shown in the first figure) provided on the second slider 20, which is biased by the coil spring 21, comes into contact with the end of the support plate 17. As a result, the workpiece 15 is pushed by the gripping member 30 in a direction opposite to the workpiece transfer direction: L, and the workpiece 15 is pushed to the stopper 4.
It is slightly separated from 5. On the other hand, the gripping member 31 biased by the weaker coil spring 22 also comes into contact with the workpiece 15, but the workpiece 15 is not pushed back to the contact position with the stopper 45 again. After this, the first
The slider 13 rises and the work 15 leaves the conveyor 1. As described above, since the workpiece 15 is slightly spaced apart from the stopper 45, the workpiece 15 is prevented from falling off due to contact with the stopper 45 when the first slider 13 is raised.

When the first slider 13 has finished rising, the air cylinder 3
5 operates, and the workpiece 15 is turned over.

Then, the first slider 13 descends and the work 15 is placed on the conveyor 1. Next, the rod 24a of the air cylinder 24 protrudes, and the gripping state of the workpiece 15 by the gripping members 30 and 31 is released.

Thereafter, the first slider 13 is raised, the stopper 45 is lowered, and the workpiece 15 is transferred.

Thereafter, the above-described operations are repeated for each transferred workpiece.

Effects of the Invention As detailed above, the workpiece reversing device according to the present invention includes a first slider that can reciprocate in a direction substantially perpendicular to the workpiece transfer direction, and a first drive means for driving the first slider. , a pair of second sliders provided on the first slider so as to be relatively movable in the workpiece transfer direction; a second driving means for relatively driving the pair of second sliders; and a second drive means for relatively driving the pair of second sliders; Each of the gripping members includes a pair of gripping members rotatably provided to grip the workpiece around a rotation axis parallel to the workpiece transfer direction, and a rotating means for rotating the gripping members. , we have provided a workpiece reversing device that has a simpler configuration than a robot arm, etc., and the program to drive it is also simple, making it easier to reduce costs across the entire production line. It is. In addition, the work speed is faster than when the workpiece is turned over manually.
Therefore, work efficiency can be improved.

[Brief explanation of the drawing]

1 and 2 are a rear view and a side view, each including a partial surface, of a work reversing device and a conveyor according to the present invention, and FIGS. 3 to 5 each include a partial surface with respect to FIG. 1. ■−■
They are an arrow view, a sectional view taken along ■-■, and a view taken along v-■. Explanation of symbols of main parts 1... Conveyor 13... First slider 20... Second slider

Claims (2)

[Claims] (1) a first slider that is reciprocally movable in a direction substantially perpendicular to the workpiece transfer direction; a first drive means that drives the first slider; and a first slider that is movable relative to the first slider in the workpiece transfer direction. a pair of second sliders provided, a second driving means for relatively driving the pair of second sliders, and a second drive unit configured to rotate each of the pair of second sliders about a rotation axis parallel to the work transfer direction. A workpiece reversing device comprising a pair of gripping members that are freely provided to grip a workpiece, and a rotating means for rotating the gripping members. (2) The second driving means includes urging means for urging each second slider in a direction in which the pair of second sliders approaches each other, and a separating means for separating the pair of second sliders from each other. 2. The work reversing device according to claim 1, wherein the urging force applied to the pair of second sliders by the urging means is different.