JPH056041Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a guide cover in a workpiece conveyance line.

[Prior art] In the conventional technology, in a workpiece conveyance line, the automatically operating part of the device in the place where manual work such as workpiece attachment is performed is covered with a cover for worker safety and equipment protection. . On the other hand, guide pins, bent rods, etc. are erected on the pallet or the like as workpiece mounting guides for mounting workpieces on pallets or jigs.

[Problems to be solved by the invention] In the conventional technology, a cover for safety and protection is required, but when installing guide pins, bending rods, etc. upright on the pallet as guides for workpiece installation work, To prevent work errors, a certain number and length of guide pins, bent rods, etc. are required. However, the number and length of guide pins, bending rods, etc. are limited due to workpiece transportation and installation of safety/protection covers, and it is difficult to make them sufficient. Moreover, it is necessary to set up each pallet separately.
That leads to higher costs.

This invention resolves this antinomy problem.

[Means for solving the problem] The guide cover for the workpiece conveyance line according to this invention is a cover that covers both sides of the conveyance path of the workpiece conveyance line, and the edges thereof face each other with a gap between them. In the workpiece mounting station, the edge of the cover opposite to the mounting operation side is formed with a stopper part that regulates the mounting position of the workpiece to be mounted, and the edge of the cover on the mounting operation side is A guide edge having a shape matching the shape of the lower part of the object on the mounting operation side is formed, and a workpiece mounting space is formed between both end edges.

[Operation] At the workpiece mounting station of the workpiece transport line, the workpiece to be mounted is placed in advance on the cover on the mounting operation side. Then, the workpiece comes into contact with a stopper portion on the edge of the cover opposite to the mounting operation side, and is pushed so that the lower mounting operation side surface of the workpiece matches the guide edge of the mounting operation side cover. The workpiece is thus regulated at the mounting position, and is then lowered through the workpiece mounting space onto the conveyance path and mounted on an appropriate conveyance means.

[Example] An embodiment of this invention will be described according to the drawings.

As shown in FIG. 1, the conveyor frames 1 and 1' on both sides have an inverted L-shape in cross section and are disposed opposite to each other with their upper portions forming guide track sections 2 and 2'.
Conveyor rollers 3 are arranged in a row between the conveyor frames 1 and 1' on both sides, and the pallets P mounted thereon are guided by guide track sections 2 and 2' to travel.

Guide covers 4, 4' each having an inverted L-shaped cross section are attached to the conveyor frames 1, 1' facing each other. That is, the upright portions 5 of the guide covers 4, 4',
5' is fixed to the outer surface of the conveyor frame 1, 1', and similarly, the horizontal part 6, 6' is fixed to the outer surface of the conveyor frame 1, 1'.
The space between the opposing edges of the guide track portions 2, 2' of 1' serves as a space for mounting a workpiece on the pallet P.

The upper surface of the horizontal part 6 of the guide cover 4 on the operator's side of the workpiece mounting station serves as a preliminary placement place for the workpiece W to be mounted. Guide plate portions 7, 7 which are bent to face each other in the direction in which the conveyor runs are erected. Both guide plate parts 7, 7
The distance between the two is wide enough to sandwich the mounted workpiece.

The leading edge of the guide cover 4 forms a guiding edge 8 having a shape that matches the shape of the lower side surface of the workpiece W to be attached on the worker's side, and the leading edge of the guide cover 4' on the side opposite to the worker's side forms an upright edge. Bent into a rib shape,
It is formed in the stopper part 9. The guide edge 8 and the stopper part 9 sandwich the workpiece W to be mounted, and restrict the position of the workpiece when it is lowered onto the mounting surface of the pallet P.

A workpiece fastener C is provided on the mounting surface of the pallet P, and a positioning pin P whose tip height is a predetermined amount lower than the back surface of the horizontal portion 6 of the guide cover 4 is planted at a predetermined location. It is set up. The predetermined amount, that is, the step a is shorter than the height (thickness) b of the portion of the lower part of the workpiece that is guided by the guide edge 8 when the workpiece W to be mounted is lowered onto the mounting surface of the pallet P.

The operation and function of the guide cover in the workpiece conveyance line described above will be described.

The operator places the workpiece W to be attached on the preliminary placement location on the upper surface of the guide cover 4, which is regulated between the guide plate parts 7, 7. At this time, the guide plate section 7,
The bending and widening of the upper edge of No. 7 is convenient as a guide for mounting operations from above.

After that, the operator pushes the workpiece W forward until the other side of the lower part of the workpiece contacts the stopper part 9 of the guide cover 4', and the front side of the lower part of the workpiece touches the guide edge 8 of the guide cover 4. match.

Then, on the mounting surface of the pallet P that has already been positioned on the conveyor roller 3 at a predetermined position below the workpiece mounting space between the guide covers 4 and 4',
The workpiece W is lowered while its lower side is guided by the guide edge 8. At this time, since the relative position of the workpiece W to the pallet P at a predetermined position is regulated by the guide edge 8, the positioning pin p of the pallet P is inserted into the positioning hole drilled at a predetermined position in the lower part of the workpiece. When the workpiece W is lowered onto the mounting surface of the pallet P, the height (thickness) b of the part of the lower part of the workpiece guided by the guide edge 8
Since the step a between the tip of the positioning pin p and the back surface of the horizontal portion 6 of the guide cover 4 is shorter, the positioning pin p can be removed while being guided by the guide edge 8.
The positioning holes of the workpiece begin to fit into the positioning pins p of the pallet P as the workpiece descends, and the positioning holes of the workpiece are smoothly fitted to the positioning pins p of the pallet P.

In this way, the workpiece W positioned and mounted on the mounting surface of the pallet P is fixed to the pallet P with the fastener C, and the pallet P is guided on the conveyor roller 3 to the guide track sections 2 and 2'. The workpiece W
transport to the next station.

[Effects of the invention] The guide cover for the workpiece conveyance line according to this invention eliminates the need for guide pins, bent rods, etc. for workpiece attachment work on the pallet P, so it does not require the use of guide pins, bent rods, etc. for workpiece attachment work on the pallet P, so there is no need for pallet conveyance, cutting chips, cutting agents, etc. on the pallet. This eliminates obstacles to the discharge of pallets and reduces costs by reducing the number of parts attached to the pallet. Thus, it functions as a safety and protective cover and facilitates accurate positioning of the workpiece during workpiece attachment work more than guide pins, bending rods, etc.

[Brief explanation of drawings]

FIG. 1 is a plan view of a guide cover in a workpiece conveyance line according to an embodiment of this invention, FIG. 2 is a sectional view taken along the - line in FIG. 1, and FIG.
It is a sectional view taken along the - line in the figure. 1, 1'... Conveyor frame, 2, 2'... Guide track section, 3... Conveyor roller, 4, 4'...
Guide cover, 5, 5'... Upright part, 6, 6'...
Horizontal part, 7... Guide plate part, 8... Guide edge, 9...
Stopper part, P... Pallet, P... Positioning pin, C... Fastener, W... Workpiece.

Claims (1)

[Scope of utility model registration request] This is a cover that covers both sides of the conveyance path of the workpiece conveyance line, and its edges face each other with a gap between them.In the workpiece attachment station, the edge of the cover on the opposite side from the attachment operation side A stopper part is formed to regulate the mounting position of the workpiece to be mounted, and the edge of the cover on the mounting operation side is formed with a guide edge having a shape that matches the shape of the lower part of the workpiece to be mounted on the mounting operation side. A guide cover on the workpiece conveyance line that forms the workpiece installation space.