JPS60248515A - Transfer mechanism of different shape articles - Google Patents

Abstract

PURPOSE:To save a space for the captioned device for motorcycle engines or the like in such a way that each of different shape articles is held at both sides of it, transfered on a movable table to be made to recede from a lowering and elevating route and carried in the cross direction at right angles to the lowering and elevating route by means of another holding implement. CONSTITUTION:A completely assembled engine 1 which was transfered t a supply portion 2 is held at both sides of it by a first holding mechanism 5 and is heaved by a lowering and elevating mechanism 7. Then, a moving table 9 enters under the engine 1 and is raised to support the engine 1. Then, the holding mechanism 5 is opened to put the engine 1 on the moving table 9. In the next step, a second holding mechanism 11 is actuated to hold the engine 1 at both sides of it. And the engine 1 is heaved by a lowering and elevating mechanism 12 and is carried horizontally along the guide rail of a transfer mechanism 13 to be transferred to the next process station. By this constitution, the transfer in stabilized condition and in a small space can be made.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] This quantity relates to an odd-shaped object conveying device for conveying odd-shaped objects, such as, for example, a two-wheel circumference engine.

[Technical background of the invention and its problems 3 On a two-wheel engine assembly line, after various parts are assembled to the engine frame by automatic assembly equipment, when the engine is transported to the next assembly process, It is necessary to take it out of the assembly jig, transfer it to a conveyor, etc., and transport it.

In this case, conventionally, a worker removes the engine from the assembly jig and manually transfers it onto a running conveyor.

However, since the engine is heavy, it requires a lot of effort and is also dangerous.

Therefore, recently, the engine is held by a gripping mechanism,
A conveying device has also been developed that mechanically lifts the object and transfers it onto a conveyor. However, even for two-wheel engines, the structure and shape vary depending on displacement and model, and a mixture of different models flow through the assembly line. Therefore, it is necessary to prepare a different gripping mechanism depending on the engine model, and this requires a large amount of equipment, so it has not been put into practical use yet.

[Purpose of the invention]

This invention was made in view of the above-mentioned circumstances, and its purpose is to be able to transport an irregularly shaped object such as an engine while stably gripping it from both sides, and to transport the object to the next process. The object of the present invention is to provide a device for conveying irregularly shaped objects that can be conveyed three-dimensionally and occupy less space.

[Summary of the invention]

In order to achieve the above object, the present invention raises and lowers a first gripping mechanism for gripping an odd-shaped object from both sides thereof by an elevating mechanism, and when raised, advances to the hoistway and lifts the object from the first gripping mechanism. A moving table is provided on which an odd-shaped object is placed and, after being placed, moves backward to evacuate the odd-shaped object from the hoistway.Furthermore, the odd-shaped object on the moving table is gripped by a second gripping mechanism to move the object up and down the hoistway. The reason is that it is conveyed in a direction perpendicular to the mechanism.

Hereinafter, this invention will be explained based on a simple embodiment shown in the drawings.

Figures 1 and 2 show an unusually shaped object, such as a two-wheel engine 1.
2 is a supply unit that supplies the engine l assembled by the automatic assembly machine 3. This supply section 2 is provided at the top of the jig removal device 4,
A first gripping mechanism 5 for gripping the engine 1 is provided at the upper part of the supply section 2 . This first gripping mechanism 5 is supported by a first elevating mechanism 7 provided on a pedestal 6, and is configured to grip the engine l from both sides and raise it.

Furthermore, a support stand 8 is provided next to the first gripping mechanism 5, and a movable table 9 is supported on this support stand 8. This movable table 9 is movable up and down, and can also move forward and backward with respect to the hoistway 10 of the upper nF2 ml gripping mechanism 5, and when moving forward, it is directly below the engine 1 gripped by the first gripping mechanism 5. The engine 1 is placed at a location where the engine 1 is placed. Further, a second gripping mechanism 11 is provided above the movable table 9, and this is supported by a second elevating mechanism 12. Further, the second elevating mechanism J2 is inclined with respect to the advancing and retracting direction of the moving table 9, and the conveying mechanism 13 transports in a direction perpendicular to the first elevating mechanism 7.
is provided.

Next, the structure of each of the above mechanisms will be explained. first,
The first gripping mechanism 5 and the first elevating mechanism 7 will be explained based on FIGS. 3 and 4. That is, 1
Reference numeral 4 denotes a support member of the first gripping mechanism 5, and a Y-axis is connected to the lower surface of this support member 14 via Y-axis guide rails 15, 15.
A shaft slider 16 is provided. The support members 1 and 4 are provided with a Y-axis drive mechanism 12 that slides the Y-axis slider 16 in the Y-axis direction. Furthermore, a pair of gripping arms 19 are provided on the lower surface of the Y-axis slider 16 and are slidable in the X-axis direction via the X-axis guide rails 1B, 1B.
．． 20 is slidably provided. Further, one gripping arm 19 is provided with a cylinder s22 of an opening/closing cylinder 21.
is fixed via the bracket 23, and this rod s24
The tip of the grip arm 20 is connected to the other grip arm 20. Then, the pair of gripping arms 1 are opened and closed by the opening/closing cylinder 21.
9.20 moves in the X-axis direction to open and close.

Furthermore, openings 25.26 facing each other are provided at the lower ends of the pair of gripping arms 19.20, and a rotary disk 29.30 is inserted into the openings 25.26 via bearings 27.28. It is rotatably supported. Ring gears 31 and 32 are fitted into these rotating discs 29 and 30, and these ring gears 31 and 32 are connected to the gripping arms 19 and 30, respectively.
It meshes with the gears of pulse motors 33 and 34 attached to 20. These rotary disks 29 and 30 are configured to be able to rotate independently. Furthermore, a bearing hole 35 is bored in one rotary disk 29 at a position eccentric to its axis, and this bearing hole 35 is integrally provided with an air cylinder 36 that projects outward. Further, a piston rod 37 is inserted into the air cylinder 36, and this piston rod 37 passes through the bearing hole 35 and projects inside the rotary disk 29.

At the tip of the piston rod 37, there is a presser plate 3 which has a disk shape and whose inner surface is made of an elastic material such as rubber.
8 is fixed, and is moved forward and backward by a piston rod 37. Furthermore, the bearing hole 35
A clamping sleeve 39 is provided on the inner peripheral surface of the piston rod 37 so that the piston rod 37 can be clamped at a predetermined position using hydraulic pressure.

In addition, the other rotary disk 3o has a plurality of clamping sleeves 3 at positions eccentric to its axis, and in this embodiment, each clamping sleeve 3
Five bearing holes 40... having 9... are drilled,
These bearing holes 4o... are integrally provided with air cylinders 41... that independently protrude outward. In addition, these air cylinders 41... have piston rods 42.
. . are inserted, which pass through the bearing holes 40 . A presser plate 43 made of an elastic material such as rubber is fixed to the tip of each of these piston rods 42, and these piston rods 42 are configured to move forward and backward independently.

Therefore, this first gripping mechanism 5 has a pair of gripping arms 1.
The engine 1 can be gripped by two-stage tightening of the gripping force of 9.20 and the gripping force of the piston rods 37, 42, etc. provided on each gripping arm 19.20.

On the other hand, the support member 14 of the first gripping mechanism 5 is provided with a pair of guide rods 44, 44 that protrude upward. These guide rods 44, 44 are inserted into guide sleeves 45, 45 attached to the pedestal 6 so as to be vertically movable. Further, a cylinder portion 47 of a lifting cylinder 46 is vertically attached to the frame 6 between the guide sleeves 45 and 45, and the tip of this rod portion 48 is connected to the support member 14 (G).

A first elevating mechanism 7 for elevating and lowering the first gripping mechanism 5 is configured.

Next, the movable table 9 and the second gripping mechanism 1 will be explained based on FIGS. 5 to 7. That is, 50 is a reciprocating cylinder, and this cylinder portion 5 is horizontally fixed to the support base 8. The moving table 9 is attached to the tip of the rod portion 52 via a bracket 53. This moving table 9 is formed in a space where one engine 1 can be placed, and when moving forward, when the first gripping mechanism 5 rises, it rises to be located directly below it, receives the engine 1, and when moving backward, it rises. It is located directly below the second gripping mechanism 11.

Further, the second gripping mechanism 11 is connected to the first gripping mechanism 5 and the second gripping mechanism 5.
Since the elevating mechanism 12 has basically the same structure as the first elevating mechanism 7, the same constituent parts will have the same numbers followed by the suffix a, and their explanation will be omitted.

However, each gripping arm 19a of the second gripping mechanism 11,
The rotary disks 29a, 30a provided in the rotary disk 20a can be manually rotated, and the rotary disks 29a, 30a can be locked at a predetermined position by a stopper mechanism 54, 55, which is an engaging member. That is, 56 is a stopper body, and a stopper pin 59 is inserted into a cylinder chamber 57 of this stopper body 56. This stopper pin 59 is urged in the protruding direction by a compression spring 60 in the cylinder chamber 57, and its tip end is a ring gear 31a,
32a to lock the rotary disks 29a, 30a so that they cannot rotate.

The transport mechanism 13 is composed of a guide rail 6, a slider 62 that slides on the guide rail 6, and a cylinder 63 that reciprocates the slider 62. 12 is fixed.

Next, the operation of the conveying device configured as described above will be explained.

When the engine 1 assembled by the automatic assembly machine 3 is supplied to the supply section 2 by the jig removal device 4, the first gripping mechanism 5 is lowered by the first elevating mechanism 7. At this time, the gripping arms 19 and 20 are in the open state, and as the first gripping mechanism 5 is lowered, the pair of gripping arms 19 and 20 are opposed to each other on both sides of the engine 1. In this case, gripping arm 19
．． 20 is attached to the Y-axis slider 16 which is movable in the Y-axis direction via the Y-axis guide rail 15.15 of the support member 14, so by moving the Y-axis slider 16, the grip arm 19.20 can be faced. Next, the opening/closing cylinder 21 is operated, and the rod portion 24
When the gripping arms 19.20 are retracted, the pair of gripping arms 19.20 move toward each other (in the
8.43... comes into contact with the side of the engine 1 and grips the engine 1 from both sides. Next, when the piston rod 37 is made to protrude from one side by the air cylinder 36, and the piston rods 42... are made to protrude from the other side by the air cylinder 41..., the presser plates 38, 43
... is pressed against engine 1 from both sides, and engine 1
is tightened in two steps. When the engine 1 is tightened in two stages, hydraulic pressure is applied to each clamping sleeve 39, and the piston rods 37, 42, etc. are clamped. In this case, the engine 1 is supported at multiple points by the holding plate 38 with a large contact area on one side and the five holding plates 43 on the other side, so the engine 1 does not rotate after being clamped and is firmly gripped. I can hold it. Here, when the pulse motor 33.34 is driven, the rotary disk 29.30 rotates via the ring gear 31.32. Therefore, the gripped engine 1 can be aligned in a stable state, that is, in a state with the center of gravity facing downward, and even if there are variations in the orientation of the engine 1 supplied from the supply section 2, it can be aligned in a constant direction. can do. Further, by rotating the rotary disks 29 and 30 by the pulse motors 33 and 34, the presser disk 38 is rotated.
．． 43... can be arbitrarily adjusted, and the gripping location of the engine 1 can also be selected.

When the engine 1 is gripped by the first gripping mechanism 5 in this manner, the lifting cylinder 46 of the first lifting mechanism 7 is operated, and the entire first gripping mechanism 5 is raised. engine 1
When the height rises to a predetermined height, the moving table 9 is activated. That is, the reciprocating cylinder 50 operates to move the movable table 9 forward, and it is positioned directly below the first gripping mechanism 5 in the hoistway 10 . Here, after the movable table 9 rises and contacts the engine 1 at low pressure, each gripping arm J9, 20 of the first gripping device s5 opens by the opening/closing cylinder 2, and the engine 1 is and placed on the moving table 9. At this time, since the engine 1 has been aligned in a stable state in advance, it is aligned without rolling on the moving table 9, and when the moving table 9 retreats,
The engine 1 faces the second damage waiting mechanism 1no.

The gripping action of the second gripping mechanism 11 is basically the same as that of the first gripping mechanism 5. Arm 19a
, 20a are rotary disks 29a, 30. There is no need to rotate each time. In other words, the stopper mechanism 5
The stopper pin 59 of 4°56 is connected to the ring gear 31a.

32a to lock the rotary disk 29a and ROa, the engine I can be held at a predetermined position.

When the gripping of the engine 1 by the second gripping mechanism 11 is completed, the engine 1 is raised by the second elevating mechanism 12. and,
The second elevator 4% 12 and the second grip mechanism 11 slide along the guide rail 61 of the transport mechanism 13 to transport the engine 1 to the next process.

By repeating such actions, the engine 1 supplied from the supply section 2 can be aligned and transported to a predetermined position.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to grip an odd-shaped object such as an engine from both sides, align it in a stable state, and transport the aligned odd-shaped object to the next process in a fully automatic manner. In addition, since the gripping mechanism is moved up and down by the elevating mechanism to transfer the odd-shaped object, the device is three-dimensional and the space occupied can be reduced.

Note that the irregularly shaped object is not limited to engines, but can also be applied to compressors, motors, etc.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view of the entire structure, FIG. 2 is a front view of the same, and FIG. Figure 4 is a drawing of the same principle, Figure 5 is a partially sectional front view of the second gripping mechanism, Figure 6 is a side view of the same, and Figure 7 is an enlarged front view of section V11 in Figure 6. be. 1... Engine (unusual shape), 2... Supply section, 5...
・The first grip Ja structure? ...first lifting mechanism, 9...
- Moving table, IO... hoistway, 11... second gripping mechanism, 13... transport mechanism.

Claims (1)

[Claims] A supply section that supplies the odd-shaped objects one by one, a first gripping mechanism that is provided opposite to the supply section and grips the supplied odd-shaped objects from both sides, and supports the first gripping mechanism. This first gripping mechanism grips an odd-shaped object and then lifts it up, and the first gripping mechanism is moved up and down by this lifting mechanism. a moving table located directly below the first holding mechanism on which the odd-shaped object is placed and then retreating to evacuate the odd-shaped object from the hoistway; and the odd-shaped object transferred onto the moving table. a second gripping mechanism that grips the object from both sides thereof; and a second gripping mechanism that supports the second gripping mechanism, grips the odd-shaped object with the second gripping mechanism, and then transports the object in a direction perpendicular to the lifting mechanism. A conveyance device N for irregularly shaped objects characterized by comprising a conveyance mechanism.