JPS61243728A - Tray positioning device - Google Patents

Abstract

PURPOSE:To reliably grasp a part in a tray by means of a robot, according to a method wherein a positioning device is vertically movably located to a lower part of a product handling part, a positioning member at the forward end of the positioning device is brought into engagement with a core through a through-hole in the under surface of a tray casing. CONSTITUTION:Contact parts 12a and 12b, positioned facing through-holes 11a and 11b formed in the front and the rear side of the under surface of a casing 11 of a tray 10, are formed in the lower part on the front and the rear side of a core 12. A positioning device 20, disposed to the lower part of a prod uct handling part 6, is moved in and out between rollers 4, and has positioning members 21a and 21b positioned facing the contact parts 12a and 12b of the core 12. The shapes of the contact parts 12a and 12b and the positioning members 21a and 21b form recessed and projection shape formed in a truncated conical shape having positioning surfaces at an upper surface and longitudinal and lateral surfaces, and positioning in a three-way of a vertical, a longitudinal, and a lateral way is effected. When the tray 10 is conveyed to a handling part 6, with the device 20 actuated, the members 21a and 21b are raised and engaged with recessed contact parts 12a and 12b for positioning.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a positioning device for trays equipped with cores used in processing lines, assembly lines, warehouses, etc.

[Prior Art] Conventionally, when parts, tools, etc. are delivered on processing lines, assembly lines, warehouses, etc., trays with cores are often used to deliver them all at once. In this case, parts and the like may be taken out from the tray, and at this time the tray is pressed against a stopper by a pressing means to position it at a predetermined position.

[Problems to be solved] However, in trays equipped with conventional cores,
Although the core could be molded accurately, the casing could not be molded very accurately. In particular, the synthetic resin housing that is most commonly used today is susceptible to thermal deformation, which causes large errors in tray positioning accuracy. Therefore, there was a problem that the robot could not reliably grasp the parts inside the tray.

[Means for solving problems] In order to solve the above-mentioned problems, the present invention disposes a positioning device movably up and down at the bottom of the product take-out section, etc., and forms a tray with a casing and a core. A through hole is provided on the lower surface of the body, and an abutting part is provided at a position corresponding to the through hole in the lower part of the core, and the abutting part of the core is provided at the tip of the positioning device through the through hole of the casing. The configuration includes a positioning member that abuts against the holder.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

Fig. 1 is an overall plan view of a delivery device equipped with the positioning device of the present invention, Fig. 2 is a side view of the transfer machine, Fig. 3 is an exploded perspective view of an embodiment of the tray, and Fig. 4 is a diagram of the positioning device. Side view,
Figure 5 is a side view of the first embodiment, Figures 6 (A), (B),
(C) is a plan view and two side views of main parts of the second embodiment, FIGS. 7(A) and (B) are a plan view and a side view of the third embodiment, and FIG.
Figures (A) and (B) are the plan view and side view of the fourth embodiment, and the ninth embodiment.
The figure shows a plan view of the fifth embodiment, and FIG. 10 shows a plan view of the sixth embodiment.

Reference numeral 1 denotes a delivery device, in which a carry-in line 2 and a carry-out line 3 are provided in parallel, and roller conveyors 4 and 5 are provided in the carry-in line 2 and carry-out line 3, respectively. Reference numeral 6 denotes a product take-out/take-out section formed at the end of the carry-in line 2, which positions a tray 10 (to be described later) and also allows products (parts, tools, etc.) to be taken out from inside the tray 10 by means of a robot.
7 is a transfer machine for transferring the tray 10 from the carry-in line 2 to the carry-out line 3. A chain conveyor 7a is provided from the product intake section 6 of the carry-in line 2 to the carry-out line 3, and this chain A conveyor 7a is provided so as to be retractable onto the roller conveyors 4 and 5 by means of a cylinder 7b.

The tray 10 has a core 12 inside a casing 11 with an open top.
The housing 11 has through holes 11a and llb on the front and rear sides of the lower surface, and a plurality of storage holes 13 for storing products in the core 12, and through holes 11a and llb.
There are two contact parts 12a, 1 at the lower part of the front and rear sides corresponding to lb.
2b is provided.

Reference numeral 20 denotes a positioning device, which is arranged at the lower part of the product take-out section 6. This positioning device 20 emerges and retracts from between the rollers 4. Two positioning members 21a, 21b corresponding to the contact portions 12a, 12b of the core 12, a link 22 which has the positioning members 21a, 21b at its tips and moves up and down by the operation of a cylinder 23; The guide rod 25 extends through a long hole 24 provided in a part of the guide rod 25 and guides the link 22 in the vertical direction. Note that the mechanism for moving the positioning members 21a and 21b in and out is not limited to the one described above, and various mechanisms can be employed.

The abutting portions 12a, 12b of the core 12 and the positioning members 21a, 21b of the positioning device 20 have different shapes depending on the positioning mode. That is, when positioning only in the vertical direction, it is better if the abutting parts 12a, 12b and the positioning members 21a, 21b abut against each other in a plane. Each has a planar shape (Fig. 5).

In addition, when positioning is performed in two directions: the vertical direction and the front-back direction or the left-right direction, for example, the contact portion 12a,
12b and positioning member 21a.

The shape of 21b is an uneven shape having a top surface and a positioning surface on either the front, back, left or right so that positioning can be performed in the two directions (FIGS. 6(A), (B), and (C)).

Furthermore, when positioning is performed in three directions: up and down, and 5 front, rear, left, and right, the abutting parts 12a, 12b and positioning members 21a, 21b may be shaped into truncated pyramids with positioning surfaces on the upper surface, front, back, left, and right surfaces, for example. (Fig. 7 (A)
), (B), Fig. 8 (A), (B)). In this case, if the truncated pyramid shape is used, the contact portion 12a and the positioning member 2
By providing each of the sections 1a at one location, the positioning function in three directions can be achieved.

In addition, when the abutting portion and the positioning member are provided at multiple locations, they may be provided at three or four locations, for example, as shown in FIGS. 9 and 10. In this way, even more accurate positioning can be achieved. be able to.

Next, the operation of the third embodiment will be explained.

When the tray 10 is transferred to the product take-out section 6 by the roller conveyor 4 on the carry-in line 2 of the delivery device 1, the positioning device 20 starts operating at the same time as the roller conveyor 4 stops. This positioning device 20 is arranged below the product take-out section 6, and when activated, the convex positioning members 21a, 21b rise and appear above the roller 4, and the concave abutting sections 12a, 12b The positioning is performed in three directions: front, back, left, right, and up and down.

Here, the robot H performs a predetermined work by taking out the product from the storage hole 13 of the core 12 of the tray 10 or storing the product into the storage hole 13. When the robot R finishes taking out the product, the positioning member 1
1a and 21b are lowered and submerged below the rollers 4. Then, the transfer a7 is activated to move the tray lO in a direction perpendicular to the carry-in line 2, and the roller conveyor 5 of the carry-out line 3 is moved.
Transfer upwards.

In addition to the above embodiments, the present invention also includes the following modifications.

(1) Making the abutting part and the positioning member have other shapes. For example, the abutting part is made convex and the positioning member is made concave.

(2) The abutting portion is provided in a downward direction, and the positioning member is raised and lowered in an oblique direction.

(3) Use this device in a serial type delivery device.

C Effect of the Invention 1 As described above, according to the present invention, since the positioning device is directly brought into contact with the core when positioning the tray, it is possible to position the tray with high precision. This allows automatic work to be carried out reliably on various automated lines.

[Brief explanation of drawings]

FIG. 1 is an overall plan view of a delivery device equipped with a positioning device of the present invention, and FIG. 2 is a side view of a transfer device. Fig. 3 is an exploded perspective view of one embodiment of the tray, Fig. 4 is a side view of the positioning device, Fig. 5 is a side view of the first embodiment, Figs. 6, (A), (B) , (C) is a plan view and two sectional views of main parts of the second embodiment, FIGS. 7(A) and (B) are a plan view and a side view of the third embodiment, and FIGS. 8(A) and ( 'B) is a plan view and a side view of the fourth embodiment. FIG. 9 is a plan view of the fifth embodiment, and FIG. 10 is a plan view of the sixth embodiment. l Delivery device 6 Product take-out section 10 Tray ll Housing 11a, 11b Through hole 12 Core 12a, 12b Contact part 20 Positioning device 21a, 21b Positioning member applicant Motoda Electronics Co., Ltd. Fig. 3 fi Al Fig. 4 Figure 5 1118 Figure (A) HB diagram (
B) ~ Figure 9 Figure 10

Claims (4)

[Claims] (1) A tray positioning device characterized by having the following requirements. (a) A pressing means is placed at the bottom of the product take-out/unloading section, etc. so that it can move up and down. (b) The tray is formed of a casing and a core, a through hole is provided on the lower surface of the casing, and an abutting portion is provided at a position corresponding to the through hole in the lower part of the core. (c) A positioning member is provided at the tip of the positioning device to abut against the contact portion of the core through the through hole of the casing. (2) The tray positioning device according to claim 1, wherein the contact portion provided on the core and the positioning member provided on the positioning device are shaped to enable vertical positioning. (3) The contact portion provided on the core and the positioning member provided on the positioning device are shaped so that they can be positioned in two directions: the vertical direction, the front-rear direction, and the left-right direction. A tray positioning device according to claim 1. (4) The contact portion provided on the core and the positioning member provided on the positioning device are shaped to enable positioning in three directions: up and down, front and back, and left and right. Tray positioning device as described in section.