JPH0418741Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) The present invention has a workpiece supply station that has a predetermined number of workpieces in order to simultaneously receive a predetermined number of workpieces into an assembly robot equipped with a plurality of gripping tools in two rows on the left and right. The present invention relates to a work supply device that supplies workpieces in two rows on the left and right, with the workpieces in each row aligned at equal intervals in the front-back direction.

(Prior Art) Conventionally, workpiece supply paths corresponding to the number of workpieces in each row are arranged in parallel in the front and back direction at equal intervals on both sides of a workpiece supply station, and one workpiece is transferred from these plurality of workpiece supply paths to the workpiece supply station. We are trying to supply each.

(Problems to be Solved by the Invention) In the above-described conventional technology, there is a problem that the apparatus becomes large because the workpiece supply paths are arranged in parallel in the front-rear direction on both sides of the workpiece supply station in the number of workpieces in each row.

An object of the present invention is to provide a device that solves these problems.

(Means for Solving the Problem) In order to achieve the above object, the present invention supplies a predetermined number of workpieces to a workpiece supply station in two rows on the left and right, with the workpieces in each row aligned at equal intervals in the front and back direction. In the work supply device, a distribution station is provided outside the work supply station to input a predetermined number of works in one line from a work supply path connected to a parts feeder, and a pair of distribution frames are provided on both left and right sides of the upper part of the distribution station. A plurality of workpiece receivers are provided in both distribution frames and extend laterally inwardly at an equal pitch to the length of one workpiece, and a longitudinal length in the front and back direction is provided on the lower surface of these workpiece receivers to receive the upper part of the workpiece. grooves are formed, and both distribution frames are movable between an inner receiving position and an outer distribution position where the grooves coincide with an extension of the work supply path, and furthermore, grooves are formed on both sides of the lower part of the distribution station. , a plurality of receivers are provided at the front and rear for respectively receiving the workpieces to be distributed to the left and right by the movement of each distribution frame to the distribution position, and each receiver on each side can be moved forward to the workpiece supply station with a predetermined stroke. It is characterized by the following.

(Function) A predetermined number of workpieces are fed into the distribution station in one line from the workpiece supply path while the distribution frames are moved to their inner receiving positions. The concave grooves of the matching workpiece receivers serve as guides to prevent the workpieces from shifting laterally, and the workpieces are accurately fed into the distribution station in one line, and the upper portion of each workpiece is inserted into the groove of each workpiece receiver, respectively. Ru.

Next, both distribution frames are moved to their respective distribution positions.According to this, the workpieces in one row are distributed into two rows on the left and right, and delivered to each receiver at each distribution position, and then each receiver moves forward. A predetermined number of workpieces are supplied to the workpiece supply station in two rows on the left and right,
In this case, by appropriately setting the forward stroke of each of the plurality of holders on each side, the intervals between the workpieces in each row in the front-rear direction can also be made equal to a predetermined interval.

(Example) In the drawings, 1 indicates a workpiece supply station, 2 indicates a workpiece supply path connected to a parts feeder (not shown) outside the station, and an assembly robot B equipped with a plurality of gripping tools A in two rows on the left and right is shown in FIG. In order to simultaneously receive a predetermined number of spring seats W for engine valve springs, which are workpieces, four spring seats W are arranged in two rows on the left and right in the workpiece supply station 1, and the spring seats W in each row are arranged at the workpiece supply station 1.
are arranged and supplied at equal intervals in the front-rear direction.

A distribution station 3 is provided outside the supply station 1 to feed four spring sheets W in one row from a workpiece supply path 2, and a pair of distribution frames 4 are provided on both left and right sides of the upper part of the distribution station 3. . A longitudinal groove 5a is formed in the front-rear direction to receive the upper part of the spring seat W, and the distribution frames 4 are arranged between an inner receiving position where the grooves 5a coincide with an extension of the workpiece supply path 2 and an outer receiving position. The dispensing station 3 is movable to both dispensing positions, and furthermore, on both sides of the lower part of the dispensing station 3,
4 each receiving the spring seats W distributed to the left and right by moving the respective distribution frames 4 to the respective distribution positions;
A number of receivers 6 are provided, and each receiver on each side is movable toward the work supply station 1 with a predetermined stroke.

More specifically, below each distribution frame 4, as shown in FIGS. 2 and 3, two workpiece receivers 5 are provided.
Each workpiece receiver 5 is slidably inserted and supported by four guide bars 8 horizontally installed on the machine frame 7, and the piston rods of each cylinder 9, 9 attached to the machine frame 7 are The cylinders 9 are connected to each distribution frame 4, respectively, so that each distribution frame 4 can be moved in the lateral direction by the operation of each cylinder 9.

In addition, each of the above-mentioned receivers 6 has a semicircular recess 6 opening inward and matching the outer shape of the spring seat W.
A is formed, and a stay 6b extending downward is provided on the outside of each of the brackets 6, and these brackets 6 are attached to the left and right sides of the longitudinal direction in the front and back direction attached to the machine frame 7 below each of the stays 6b. The machine frame 7 is slidably supported on both side rails 10, 10, and is attached to each stay 6b of each receiver 6, 6 on the rear side in the direction of movement of the spring seat W (the right side in FIG. 1). The piston rods of the cylinders 11, 11 attached to the respective stays 6b, 6b are connected to each other, and the piston rods of the cylinders 12, 12 attached to the respective stays 6b, 6b are connected to the respective stays of the respective receivers 6, 6 on the front side (left side in the figure). 6b, each of the rear side brackets 6, 6 and each of the front side brackets 6, 6
In addition, each cylinder 12, 12 moves forward and backward by the operation of each cylinder 11, 11, and each cylinder 12, 12 moves forward and backward by the operation of each cylinder 11, 11, and each cylinder 12, 12
The movement of the rear receivers 6, 6 toward each other is caused to move forward and backward.

Further, a guide groove 5b is formed on the lower surface of each of the workpiece receivers 5, which corresponds to the groove 5a of the workpiece receiver 5 of the other distribution frame 4 when both the distribution frames 4, 4 move to their respective distribution positions. These guide grooves 5b
Thus, when the spring sheets W distributed by the movement of the distribution frames 4, 4 to the respective distribution positions are pushed forward by the respective receivers 6, the spring sheets W can be guided so as not to shift laterally.

In addition, a pusher 13 is provided in the middle of the workpiece supply path 2 for feeding four spring sheets W into the distribution station 1 at a time, and as shown in FIG. The slider 13b is slidably supported on a longitudinal guide bar 13a, and the engaging pin 13c is provided on the slider 13b and is vertically retractable. 13d piston rod and the engaging pin 1
3c, the cylinder 13 vertically installed on the slider 13b
Connect the piston rods 1 and 1 of the cylinder 1.
3e causes the engaging pin 13c to protrude downward, and the pin is inserted into the through hole of the spring seat W, and the cylinder 13d is inserted into the spring seat W.
When the slider 13b is operated in the extension side, a forward movement of the length equivalent to four spring sheets W is applied via the slider 13b, and by this forward movement, four spring sheets W are fed into the distribution station 3 in one row. I decided to do so.

In the drawing, 14 is a retractable stopper pin of the work supply path 2, 15 is a proximity switch for detecting the presence or absence of a spring seat W provided in the work supply station 1, and 16 is a stopper pin for each spring seat W to be pushed out by each receiver 6. A guide protrusion for guiding the inner surface is shown.

Next, to explain the operation of the embodiment, first, with both distribution frames 4, 4 moved to the inner receiving position, the pusher 13 is operated to feed four spring sheets W into the distribution station 3 in one row. According to this, the concave grooves 5a of each workpiece receiver 5 that match the extension line of the workpiece supply path 2 serve as a guide to prevent the spring seats W from shifting laterally, so that these spring seats W are accurately distributed in one row. The spring sheets W are loaded into the station 3, and the upper portion of each spring seat W is inserted into the groove 5a of each workpiece receiver 5 (state shown in the fourth figure).

Next, both cylinders 9, 9 are operated to the extension side, respectively, to move both distribution frames 4, 4 to respective distribution positions,
According to this, the spring seats W in one row are distributed into two rows on the left and right, and the lower portions thereof are inserted into the recesses 6a of the respective receivers 6 at each distribution position (in the state shown by dotted lines in FIG. 5). ), then each cylinder 11,
11, 12, and 12 to the extension side, four spring seats W are supplied to the workpiece supply station 1 in two rows on the left and right, and in this case, the forward strokes of the two receivers 6 on each side are controlled. By making appropriate settings, the distances in the longitudinal direction of the spring seats in each row can also be made equal to a predetermined distance (as shown by the imaginary lines in FIG. 5).

Next, after having the assembly robot B receive the four spring seats W aligned at the work supply station 1, each receiver 6 is retreated to each distribution position, and each distribution frame 4 is moved to the receiving position, Then the pusher 13 transfers the 4 to the dispensing station 3.
Spring sheets W are put in one row, and then these spring sheets W are fed to the work supply station 1 in the above-described operating order.

By sequentially repeating this, a predetermined number of spring seats W are continuously supplied to the work supply station 1 in two rows on the left and right, and the spring seats W in each row are arranged at equal intervals in the front and rear direction.

(Effect of the invention) As described above, according to the invention, a predetermined number of workpieces fed into one row from a single workpiece supply path are placed in two rows on the left and right at the workpiece supply station, and the workpieces in each row are placed in the front and back direction. It is possible to line up and supply the workpieces at equal intervals, and therefore there is no need to provide workpiece supply paths for the number of workpieces in each row in parallel in the front and back direction on both sides of the supply station, unlike in the prior art described above, and the equipment This has the effect of making it more compact.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of an example of the device of the present invention;
Fig. 2 is a plan view thereof, Fig. 3 is a front view taken along the - line of Fig. 1, and Fig. 4 is a plan view taken along the - line of Fig. 1.
FIG. 5 is a plan view of the spring seat in its operating state, and FIG. 6 is a perspective view of the spring seat. 1... Work supply station, 2... Work supply path, 3... Distribution station, 4, 4... Distribution frame, 5... Work receiver, 5a... Concave groove, 6...
Receiver, W...spring seat (work).

Claims (1)

[Scope of utility model registration request] In a work supply device that supplies a predetermined number of workpieces to a workpiece supply station in two rows on the left and right, with the workpieces in each row aligned at equal intervals in the front and back direction, a predetermined number of workpieces is provided outside the workpiece supply station from a workpiece supply path connected to a parts feeder. A distribution station is provided that inputs a number of workpieces in one line, and a pair of distribution frames are provided on both left and right sides of the upper part of the distribution station. A plurality of workpiece receivers extending inward are provided, and grooves elongated in the front-rear direction for receiving the upper portions of the workpieces are formed on the lower surface of these workpiece receivers, and these grooves are an extension of the workpiece supply path. It is movable between an inner receiving position and an outer distribution position that match the line, and furthermore, on both sides of the lower part of the distribution station, the workpieces to be distributed to the left and right by moving each distribution frame to the distribution position are respectively placed. 1. A workpiece supplying device characterized in that a plurality of receivers are provided at the front and rear for receiving the workpiece, and the receivers on each side are movable forward to the workpiece supplying station at respective predetermined strokes.