JPH066108Y2 - Positioning device for parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a positioning device for parts, particularly for automating assembly work in, for example, a conveyor line.
The present invention relates to a positioning device for a component that is housed and transferred in a container or the like.

“Prior Art” Conventionally, in the automation of assembly work, high-precision positioning is required for parts on a line in order to enable parts of product equipment to be gripped by, for example, a robot for assembly work. It is said that.

However, conventionally, the components that are aligned in a container or the like and are conveyed on the line have poor positional accuracy in the container, and thus it cannot be said that such a request is sufficiently satisfied.

Therefore, for example, as shown in FIG. 4, a member 4 for positioning the component 3 is placed in the container 2, and a positioning pin 5 protruding upward is inserted into the lower portion of the member 4 by pushing it up. There has been proposed a component positioning device 1 for improving the component positioning accuracy. In addition, here, the case where the members 4 are stacked in two upper and lower stages is shown, and the positioning pins 5 are extended and also inserted in the upper member 4.

Such a component positioning device 1 is typically disclosed, for example, in Japanese Utility Model Publication No. 56-17219.

[Problems to be Solved by the Invention] However, in such a conventional positioning device 1 for a component, since the positioning pin 5 is inserted into the lower portion of the member 4, the positioning pin 5 is placed at the bottom of the container 2. Since it is necessary to provide the insertion hole 6, it is inevitable to prepare a container having a special shape. In this case, the versatility of the container becomes poor, and in addition, there is a problem in that it must be managed separately from other types of containers.

In addition, since the positioning pin 5 side moves in the vertical direction, there is a problem that an accuracy error occurs due to the movement on the pin 5 side, and the positioning of the component cannot be performed accurately.

"Object of the Invention" Therefore, a main object of the present invention is to provide a parts positioning device that does not require a container dedicated to positioning parts and enables sharing of other working containers.

Another object of the present invention is to provide a component positioning apparatus that further improves the component positioning accuracy by fixing the positioning pin side and moving up and down the container side.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the main means adopted by the present invention are that the upper and lower surfaces are formed in parallel so that they can be stacked vertically, and the opposite side surfaces from the upper end respectively. A positioning member that penetrates toward the lower end and is formed with a concave-shaped engaging portion with an appropriate width and that is housed in a container with an upper end opening in a state where a plurality of parts are aligned on the upper surface and conveyed to a predetermined position, A plurality of fixedly arranged so as not to interfere with the upper surface of the positioning member above the predetermined position so that the positioning member can be positioned by engaging with the plurality of engaging portions respectively. The point is that it includes a positioning pin and an elevating mechanism that elevates and lowers the container at the predetermined position so as to face the plurality of positioning pins.

[Operation] When the container is transported to a predetermined position, the container is lifted by the lifting mechanism toward the positioning pin fixed above the container. At this time, the positioning pin engages with the positioning member housed in the container from above, and the position of this positioning member is determined. At the same time, the positions of the components arranged on this positioning member are determined.

[Advantage of Invention] According to this invention, since a container for exclusive use of positioning is unnecessary, other working containers can be shared and an increase in the number of items used can be suppressed.

Also, because the positioning pin side is fixed and the container side is moved up and down, there is no precision error due to movement on the positioning pin side,
By respectively engaging a positioning member having a plurality of engaging portions and a plurality of positioning pins corresponding thereto,
The positioning accuracy of parts can be improved. Furthermore,
In the engaged state of the positioning pin and the concave engaging portion of the positioning member whose upper and lower surfaces are formed in parallel so as to be vertically stackable, the plurality of components and the positioning member are sequentially moved upward. Since it is possible to pull out, it is possible to stack a plurality of stages of positioning members in one container and handle a plurality of parts, thereby improving work efficiency.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[Embodiment] FIG. 1 is a front view of an essential part of a positioning device for parts according to an embodiment of the present invention, showing a container and the like set in the device in cross section, and FIG. 2 is a plan view of the essential part. FIG. 3 is a front view of essential parts showing another mode of the apparatus of the embodiment shown in FIG.

The following embodiments are merely specific examples of the present invention, and the technical scope of the present invention is not limited to the embodiments.

In FIG. 1, a component positioning device 10 includes a hydraulic cylinder 1 that is appropriately controlled in operation at a predetermined position of a conveyor line 14 that conveys a container 12 in the direction of arrow A in the drawing.
It is equipped with an elevating table 16 which is moved up and down by 5. The installation position of the elevating table 16 is, for example, in the vicinity of a robot (not shown) for assembling the parts, and the parts supplied by the container 12 are grasped by the grasping part of the robot whose work position is taught. The position.

The container 12 is formed with an opening at the upper end so that parts can be taken in and out from above. Then, in this container 12, a pallet (positioning member) 20 in which a plurality of components 18 picked up by the robot are aligned and arranged on the upper surface, is stacked and stored in, for example, two upper and lower stages.

As shown in FIG. 2, the pallet 20 is formed in a substantially rectangular shape in a plan view, and the upper and lower surfaces thereof are formed in parallel so that the pallet can be vertically stacked, and the side surfaces 20 _a facing each other are arranged. , _20b are provided with recesses 22 having an appropriate width and penetrating from the upper end to the lower end. For example, the side surface 20 _{a of the} pallet 20 has recesses 22 formed on both sides thereof, and the side surface 20 _b has a recess 22 formed at the center thereof.

Here, as can be seen from FIG. 1, a plurality of engagements, which extend downward, face the upper surface of the pallet 20 which is housed in the container 12 and placed at a fixed position on the elevator 16 above the elevator 16. Pins 24, 24 ... (Positioning pins) are fixedly provided.

In this case, as shown in FIG. 2, the plurality of engaging pins 24, 24 ... Are formed on the side surface _20b side of the pallet 20 and on the side surface _20b side. Three pieces are mounted so as to engage with one recess 22. Then, as shown in FIG. 3, each engagement pin 24,
The engaging positions of the concave portions 24, 22, ... Of 24 are set to positions where the gripping position of the robot with respect to the component 18 does not shift. The engagement pin 24
The lower end of the is formed, for example, in an inverted truncated cone shape and has a tapered surface so that the pallet 20 that smoothly engages and abuts against the recess 22 located below can be appropriately moved in the horizontal direction. There is.

Further, in this embodiment, the engaging pin 24 does not engage with the pin hole but with the concave portion 22 which is opened to the side surface formed on each of the side surfaces 20 _a and 20 _b of the pallet 20, so that this engagement is performed. The pallet 20 may be provided so as not to contact the arm 26 that supports the dowel pin 24. Accordingly, the pallet 20 can be taken out upward after the parts 18 have been carried away without being disturbed by the arm 26, and the pallets 20 can be stacked in a plurality of stages.

Next, the function of the component positioning device 10 having such a configuration will be described. As shown in FIG. 1, when the pallets 20 stacked vertically in two stages are accommodated in the container 12 and transported along the line 14 in the direction of arrow A, they are arranged at predetermined positions on the line 14. Lifting table 16
Is appropriately positioned and placed.

At this time, when the placement of the container 12 on the lift table 16 is confirmed through a known detection means or the like, this lift table 16
Is raised in the direction of arrow B in the figure, as shown in FIG. As the container 12 rises, the pallet 2 simultaneously
0 also rises and both side surfaces 20 _a , 20 _{b of} this pallet 20
The engaging pins 2 are formed in the recesses 22, 22, ...
4, 24 ... Start engaging. At this time, if the pallet 20 is displaced in the container 12 because it is not in a predetermined position, the tapered surface 24 _a of the engaging pin 24 that relatively descends from above contacts the upper end of the recess 22. The pallet 20 is horizontally moved to a predetermined position until the engagement pins 24 are completely engaged. As a result, the pallet 20 is corrected and moved to the fixed position in the container 12, and the components 18 are positioned at the predetermined positions.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a device for positioning a part according to an embodiment of the present invention, showing a cross-section of a container or the like set in the device, FIG. 2 is a plan view of the same part, and FIG. FIG. 4 is a front view of a main part of another embodiment of the device shown in FIG. 1, and FIG. 4 is a front view of a main part of a conventional positioning device for parts, which is the background of the present invention. Etc. are shown in cross section. (Explanation of reference numerals) 10: Parts positioning device 12: Container, 16: Lifting table 18: Parts 20: Pallet (positioning member) 22: Recess 24: Engagement pin (positioning pin).

Continuation of front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display area // H05K 13/02 D 8509-4E

Claims (1)

[Scope of utility model registration request] 1. An upper surface and a lower surface are formed in parallel so that they can be vertically stacked, and concave-shaped engaging portions having an appropriate width are formed so as to penetrate through opposite side surfaces from the upper end to the lower end. A positioning member that is housed in a container having an upper opening and conveyed to a predetermined position in a state where a plurality of parts are aligned, and a positioning member that can be positioned by respectively engaging with the plurality of engaging portions. A plurality of positioning pins fixedly arranged above the predetermined position so as not to interfere with the upper surface of the positioning member, and at the predetermined position, the container is raised and lowered so as to face the plurality of positioning pins. An apparatus for positioning a component, which comprises a lifting mechanism for causing the movement.