JPS6147763B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a parts sorting and supplying device that is capable of preparing bolts and other parts in a plurality of different lengths and sorting and supplying them.

Conventionally, when bolting multiple types of workpieces using a multi-axis tightening device, in preparation for changing the model of the workpiece, a dedicated machine that corresponds to the arrangement of the tightening positions of each workpiece and the type of bolts used is used. Generally, multiple bolt feeding devices are prepared and the bolt feeding devices are switched when changing models, but this method requires time and effort to switch and requires a large space to place multiple bolt feeding devices. Moreover, a bolt supply path such as a bolt pressure feeding tube is led out from each bolt supply device, resulting in the inconvenience that the piping becomes complicated.

An object of the present invention is to provide a device that eliminates such inconveniences, and one example of implementing the present invention will be described below with reference to the accompanying drawings.

The drawings show an embodiment in which the apparatus of the present invention selectively supplies a plurality of bolts a as parts to a head exchangeable multi-shaft tightening device.

In the figure, reference numeral 1 indicates a parts feeder for storing bolts a, and in the illustrated one, these are provided in two rows on the left and right in three stages, upper and lower, to accommodate different types of bolts a. Gates 3 at the front end are arranged side by side in pairs on the left and right for each stage, and furthermore, in the front of these gates 3, intermittent feed is provided in the lateral direction from the standby position on the right to the supply position on the left in Fig. 1. A slider block 4 is provided, and three upper and lower parts storage grooves 5 facing the gates 3 of each stage are formed in a plurality of horizontal rows, for example, 16 rows.

In addition, the slider block 4 shown in the figure is composed of three stages of upper and lower sliders 4a distributed in each stage, and 16 rows of parts storage grooves 5 are formed in each stage of the slider 4a. These three stages of sliders 4a are connected vertically to the parts housing grooves 5 formed in the sliders 4a of the other stages in the same row through pipes 6, and these three stages of sliders 4a are connected to a common pinion shaft 7 extending in the vertical direction. Three upper and lower stages of feed pinion 8
I made it to feed in increments in one piece.

As clearly shown in FIG. 4, each of the gates 3 has one end connected to a swing arm 9, and the other end facing the rod tip of an operating cylinder 11, so that the cutout formed in each gate 3 by the operation of the operating cylinder 11 is connected to the swing arm 9 at one end. Groove 1
The cylinder 11 is configured to be reciprocated between an open position where the cutout groove 10 is aligned with the part lead-out path 2 and a closed position where the cutout groove 10 is deviated to the side of the lead-out path 2, and the cylinder 11 is moved intermittently between the slider block 4 and the closed position. It is configured to count the increment feed and operate at a predetermined count, and when the cylinder 11 is inactive, each gate 3 is held in the closed position, and the swing arm 9 is rotated by the rotation of the cam 12. It is designed not to be shaken. Then, the swing arm 9 due to the operation of the cylinder 11
When each gate 3 is moved back to the open position through the gates, one of the bolts a on the parts lead-out path 2 is inserted into the cutout groove 10 as shown in FIG. By the backward movement of the bolt a, the bolt a is pushed forward as shown in FIG.

Here, each stage 1 corresponds to one pair of gates 3 at each stage.
A total of three pairs of cams 12 are provided on a common camshaft 13 extending in the vertical direction, and the camshaft 13 is constantly rotationally driven by a motor 14. The pinion shaft 7 of the slider block 4 is connected via a Geneva mechanism 15, so that the slider block 4 is alternately given, for example, incremental feed and intermittent pauses for each rotation in synchronization with the cam 12.

In the drawing, reference numeral 16 indicates a parts supply path consisting of 16 pressure feeding tubes arranged in parallel in correspondence with the 16 rows of parts storage grooves 5 at the front side of the supply position of the slider block 4. The rotation of the lower reversing drum 17 and the air valve 18 are connected from the parts storage grooves 5 of the rows to the corresponding parts supply paths 16.
Each bolt a was fed out by blowing compressed air from the bolt.

In the drawing, reference numeral 19 denotes a double-acting cylinder 2 for returning the slider block 4 from the supply position to the standby position.
0 is an operating cylinder for the air valve 18, and 20 is a drive motor for the reversing drum 17. The drum 17 is connected to the motor 21 via a Geneva mechanism 22 so as to be rotated through 180 degrees. . The head exchangeable multi-axis tightening device described above has a plurality of tightening heads 25 mounted on an annular rail 24 on the outer periphery of the support column 2, and these tightening heads 25 are mounted on a movable rail 26 on the front side of the annular rail 24 that can be raised and lowered. Any one of the clamping heads 25 is configured to be selectively moved by an indexing device 27 on the upper part of the column 23, and as the movable rail 26 is lowered, the selected clamping head 25 is moved to the processing station below. The bolt is tightened by descending toward the work w on the workpiece 28. In the drawing, 29 indicates a connecting head provided on the upper side of the movable rail 24, and the connecting head 29
The 16 parts supply paths 16 described above are connected in a predetermined arrangement, and 16 joints 30 corresponding to each of these parts supply paths 16 are arranged on the upper surface of each tightening head 25. A plurality of screws are attached to each tightening head 25 corresponding to the tightening position of each work w.
The used joints were connected to bolt holders 31 provided at a plurality of locations on the lower surface of the body via connection pipes 32, and the other joints 30 were blind joints.

In the drawing, numeral 33 indicates a nut runner provided corresponding to each bolt holder 31, numeral 34 indicates an air supply joint connected to each nut runner 33, and numeral 35 indicates an air supply tube connected to the connecting head 29.

FIG. 1 shows numbers 2 and 5 of the connecting head 29 depending on the model of the work w to be carried into the processing station 28.
2 corresponding to parts supply path 16 of No., No. 12, No. 15
Four bolt holders 31 that supply bolts a from joint parts 30 of No., No. 5, No. 12, and No. 15, respectively.
The clamping head 25 with a .

Here, the No. 2 joint part 30 has a type A bolt a from the parts feeder 1 in the upper part of the right row, and the No. 5 joint part 30 has the bolt a from the parts feeder 1 in the middle part of the right row.
Bolt a of machine B from and No. 12 joint part 30
If the bolt a of type C from the parts feeder 1 on the lower stage of the right row should be supplied to the No. 15 joint part 30, and the bolt a of class D from the parts feeder 1 on the upper stage of the left row should be supplied to the above-mentioned The apparatus of the present invention operates as follows according to a predetermined program depending on the model of the work w.

That is, the increment feed position of the slider block 4 from the standby position is detected by a signal from a counting circuit that counts the number of increment feeds, and first, when the parts storage groove 5 in the second row is located in front of the gate 3 in the right row. , the gate 3 at the top of the right row is opened and closed, and the parts feeder 1 at the top of the right row is placed in the parts storage groove 5 at the top of the second row.
A type A bolt a is sent in. Thereafter, when the parts storage grooves 5 in the 5th and 12th rows are positioned in front of the gates 3 in the right row, the gates 3 in the middle row of the right row and the lower gates of the right row are opened and closed, respectively, and the gates 3 in the middle row of the 5th row are opened and closed. A bolt a of type B from the parts feeder 1 in the middle stage of the right row is fed into the parts storage groove 5, and a bolt a of type C from the parts feeder 1 in the lower stage of the right row is fed into the parts storage groove 5 in the lower part of the 12th row. When the parts storage groove 5 in the 15th row is located in front of the gate 3 in the left row, the upper gate 3 in the left row is opened and closed, and the
A D type bolt a from the parts feeder 1 in the upper part of the left row is fed into the parts storage groove 5 in the upper part of the 15th row, and the slider block 4 is moved to the supply position.

The bolts a fed into the upper and middle parts storage grooves 5 of each row fall through the pipes 6 into the lower part storage grooves 5 on the same row and are stored therein, and eventually the bolts a are sent to the parts storage grooves 5 in the lower part of the same row. 5 As shown in the diagram, the second
Bolts a of type A, type B, type C, and D are stored in the parts storage grooves 5 at the bottom of each of the rows 5, 12, and 15, respectively, corresponding to each of these rows. Each part supply path 16 for No. 2, No. 5, No. 12, and No. 15
2 of the clamping heads 25 on the movable rail 26 via
Predetermined bolts a are supplied to joint portions 30 No. 5, No. 5, No. 12, and No. 15, respectively.

In this way, according to the present invention, a plurality of part lead-out paths 2 extending from a plurality of parts feeders 1 are arranged in multiple stages above and below, and a gate 3 is provided at the front end of the lead-out path 2, and a standby position on one side is provided in front of these gates 3. The slider block 4 is provided with a slider block 4 that is intermittently fed laterally in increments toward the supply position on the other side. The parts storage grooves 5 are made to communicate with each other in the vertical direction to form a plurality of rows in the horizontal direction, and the gates 3 at each stage are connected to cylinders 11 that operate at a predetermined count by counting the intermittent feed of the slider block 4. Since these parts are connected together and can be selectively opened and closed, various parts can be freely combined and sent out through these parts supply channels, and a single machine can supply a wide variety of parts, allowing multiple machines to be fed together. This has the effect of reliably eliminating the disadvantages of the above-mentioned conventional devices requiring a parts supply device.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an example of the device of the present invention, Fig. 2 is a side view thereof, Fig. 3 is an enlarged cross-sectional side view taken along the line - - in Fig. 1, and Fig. 4 abc is an outline for explaining the opening/closing operation of the gate. FIG. 5 is a diagram illustrating the parts storage state. 1... Parts feeder, 2... Parts lead-out path,
3...Gate, 4...Slider block, 5...
Parts storage groove, 16...parts supply path.

Claims (1)

[Claims] 1. A plurality of parts feeders for storing bolts and other parts are provided, and parts lead-out paths extending from these parts feeders are arranged in multiple stages above and below, and a gate is provided at the front end of the parts lead-out path in each stage, and a gate is placed on one side in front of these gates. The slider block is provided with a slider block that is intermittently fed horizontally from a standby position to a supply position at the other end, and the slider block is provided with a plurality of upper and lower stages facing the gates of each stage for each intermittently feeding. The parts storage grooves are vertically connected to each other to form a plurality of rows in the horizontal direction, and the gates of each stage are connected to a cylinder that operates at a predetermined count by counting the intermittent feed of the slider block. A parts sorting and supplying device characterized in that it selectively opens and closes by opening and closing the device.