JPH033728A - Parts supplying device - Google Patents

Abstract

PURPOSE:To surely supply parts by so constituting to replenish in a unit of cartridge to feed parts from a stocker into the transfer channel of the main body of a supply device. CONSTITUTION:When a cartridge 17 (stocker) housing bolt sets 23 in all rows is installed on the transfer frames 13,14 of the main body of a device, the first row of stocker units in the lanes is first set in supplying position by the cylinder device connected to the frames 13,14. The bolt set 23 in the stocker lane, pushed from behind with a press head 25 by a rodless cylinder 4 installed on a movable base 26, a portion pushed out from the cartridge 17, is fed into a transfer chan nel 32. A piece of bolt set 23 on the tip is transported to a discharge port, pushed laterally in a moving channel 33 by a pusher not shown in the figure. When a piece at the tip is transported to the discharge port side this way, the next bolt set 23 is fed into the moving channel 33.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a parts supply device for supplying mounting bolts to be attached to a rocker shaft, for example, in assembling a rocker arm of an engine. Regarding this.

(Prior Art) In general, automatic assembly equipment that automatically assembles an assembly from a plurality of parts stores a large number of parts and assembles the parts, as described in Japanese Unexamined Patent Publication No. 6+-8235, for example. A component supply device that directly supplies the work equipment is installed for each component.

For example, when assembling an engine rocker arm, when supplying mounting bolts to be installed in the bolt holes of the rocker shaft, conventionally a parts feeder was used that was configured to store a large number of parts in a row and feed them out one after another. It was common for parts to be taken out one after another from this parts feeder and supplied directly to the assembly equipment.

By the way, in conventional automatic rocker arm assembly lines, for example, troubles are relatively rare during the assembly work itself, but rather in the parts supply device that supplies parts to the assembly device. More often than not, problems such as these occur, parts are no longer supplied, and the line is stopped because of this.

(Object of the Invention) The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to obtain a parts supply device that can reliably supply parts for automatic assembly.

(Structure of the Invention) The present invention does not directly feed parts from a parts feeder as in the past, but instead feeds parts from a stocker into a transfer path of a main body of a feeding device, thereby carrying out replenishment processing in a cartridge-like manner. This system achieves reliable parts supply, and its configuration is as follows. That is, the parts supply device according to the present invention includes a support part that positions and supports a stocker in which a large number of parts are stored in a row so as to be extrudable in sequence, and a support part that is connected to the extrusion end side of the stocker supported by this support part. a transfer path that guides the parts sent out from the stocker to the discharge end side; and a transfer means that presses the parts row in the transfer path and the stocker from behind to transfer the parts in the parts row to the discharge end side Z. It is characterized by having the following.

In a device configured in this way, when one part row in the stocker ends and is switched to the next part row, or when the stocker becomes empty and is replaced with a new stocker, the In order to prevent uninterrupted removal of the parts, it is preferable to include an auxiliary transport means that pushes the parts in the transport path in the discharge direction when the transport means is returned to the retracted position.

Further, when returning the transfer means to the retreated position, the transfer means is provided with a means for making a movement that does not interfere with the stocker and the parts in the stocker, so that the transfer means itself has a function similar to the above-mentioned auxiliary transfer means. You can also do this.

(Function) A large number of parts are stored in a row in the stocker, and the stocker is positioned and supported by the support section of the device main body.
The transport means is set in a position to push the part row from behind. In this state, when the first part of the row is taken out from the discharge end of the transfer path, the parts row is pushed by the transfer means and sequentially moved forward, and the next part to be taken out is delivered to the discharge end.

When the number of parts remaining on the transfer path decreases, the position of the stocker is moved to switch to another part row, or the stocker is replaced with a new stocker, and the same part supply continues.

When the transfer device is returned to the retreat position when switching the parts row or replacing the stocker, the auxiliary transfer means applies a push to the parts row remaining in the transfer path, thereby preventing the delivery of parts to the discharge end side from being interrupted. Make sure not to.

In addition, if the transfer means is provided with a means for making a movement that does not interfere with the stocker or the parts stored therein when returning the transfer means to the retreated position, when the number of parts remaining on the transfer path is reduced, the transfer Practically uninterrupted supply of parts can be achieved by switching the parts row or replacing the stocker with a new stocker while pushing the remaining parts by the means, and then returning the transfer means to the retracted position. .

(Example) Examples will be described below based on the drawings.

FIG. 1 is a partial sectional view of an embodiment of the present invention applied to a bolt supply device for assembling a rocker arm of an engine, and FIG. 2 is a left side view thereof. The bolt supply device of this embodiment has an upper table la lb divided into left and right halves along the longitudinal direction of the device body, and a lower table 2 located between these upper tables laIb. , Ib are provided with two parallel parallel plates extending from the front end to the rear end of the tables la, lb.
Book rails 3+lL, 3b are provided, and the lower table 2
is provided with a long rodless cylinder 4 that extends almost from its front end to its rear end. In addition, two pillars 5a, 5b, 6a, and 6b are provided at a predetermined distance rearward from the front end of the apparatus main body, and at a position near the rear end. side 2
The two pillars 5a, 5b: 6a, 6b on the rear end side are
Frames 78 extending left and right across one side of the apparatus main body are supported and fixed, respectively.

Each of the front and rear frames 7.8 is provided with a rail 9.10 on the lower surface side, and each of these rails 910 has three slide members 11a11b, Ilc; 12a,
A moving frame 13.14 with +2b, 12c is mounted. A Norinda device 15 in the form of two cylinders connected in series is arranged on the side of the device body.
A bipedal moving frame 13,14 is connected to this Norinda device 15 and is movable into three positions.

” A pair of two-legged moving frames 13, 14 carry three cartridges i6. This is for positioning and setting the +718.

The three cartridges 16.17, 1.8 are placed on the movable frame 13.14 with their respective opposite end frame parts,
The positioning pins 20 on the movable frame 13 and 14 engage with a pair of positioning holes 19 formed on a diagonal line 2, thereby positioning and supporting the movable frame 13.14. These Kartlitz I
Among the cartridges 6 to I8, the cartridge 16 installed at the left end in FIG. It is something. Further, the cartridges 17 in the center are stored in six rows, each row containing 25 bolt sets and three rows, and the cartridges 18 on the right end are stored in one row with 25 bolt sets.
In this case, each bolt set 3 is divided into three rows and three rows, and is stored in a total of six rows. For this reason, when storing 3 or 6 bolts, each car 1-ridge 16 to 18 is equipped with a rail that suspends them in a row with the threaded part of the bolt 21 protruding downward. 16a to 18a are formed.These storage i1i\
16a to 18a are formed by a set of multiple parts (=J (j), and the front end side is opened so that the bolt set 23 can be pushed out.

This device supplies 5 bolt sets 23 in 5 lanes by arranging 5 bolt sets 23 horizontally at predetermined bits.
The three rows of cartridges 16 at the left end in FIG. 2, the three rows on the left side and the three rows on the right side of the central cartridge I7.

Three rows on the left and three rows on the right of the rightmost cartridge 18 serve as stocker units for each lane.

One suppression head 25 is provided for each lane. Each pressing head 25 is fixed to the tip of a rod 29 that is inserted through the respective support portions 27 on the common movable base 26 and is slidable in the front and rear direction via the ball spline 28, and A coil spring 30 is attached to and held in a state where a spring action is applied to the front side. Furthermore, the movable base 26 is connected to the upper table la via two slide members 31 on the left and right sides.

It is mounted on the rails 3fL and 3b of 1b, and is connected to the rodless cylinder 4 so as to be movable in the front and rear directions.

When the cartridges 16 to I8 are newly supplied, the movable base 26 is retracted to the rear. When the cartridges 16 to I8 containing bolt sets 23 in all rows are attached to the moving frame 2 of the apparatus main body, each lane is moved by the cylinder device 15 connected to the moving frame 13.14. The first row of stocker units is first set in the supply position. Then, a relatively weak force is applied forward to the movable base 26 by the rodless cylinder 4:
J is done. As a result, the bolt sets 23 in the set row are pushed from the rear and are thrown into a state of being pushed.

The main body of the apparatus is provided with five transfer paths 32 connected to stocker rows set at the supply positions of each lane. Further, at the tips of these transfer paths 32, orthogonal movement paths 33 are provided in the lateral direction orthogonal to the transfer paths 32, and the movement paths 33
A discharge port through which the take-out loader hand 24 takes out the bolt set 23 is formed at the moving end of the bolt set 3.

The bolt sets 23 in the stocker row are pushed from the rear by the pressing head 25 on the movable table 26, and the portions pushed out from the cartridges 16 to 18 are transferred to the transfer path 32, and the one bolt set 23 on the tip side is is pushed from the side by a pusher (not shown) in the movement path 33 and sent to the discharge port. When one of the leading ends is sent to the discharge port side in this way, the next bolt set 23 is sent to the movement path.

When the set stacker row becomes empty and the number of bolt sets 23 remaining in the transfer path 32 decreases, the movable base 26 is moved rearward and the pressing head 25 is returned to the initial position.
The cylinder device 15 is operated to shift the cartridges 16 to 18, and the second stocker row of each stocker unit is set at the supply position. Furthermore, after the last stocker row is empty, the cartridges are replaced with new cartridges.

Furthermore, when shifting the cartridges 16 to 18 or replacing the cartridges as described above, the pressing head 25 separates from the row of bolt sets 23 remaining in the transfer path 32 until the setting is completed again. Therefore, as an auxiliary transfer means that operates during this time, an auxiliary suppression head 34 that is manually set as shown in FIG. 1 is provided.

This auxiliary pressing head 34 has a support lever 35 attached to the main body of the device.
It is slidably attached to a rod 36 which is swingably supported through the . The auxiliary suppression head 34 is normally held at the retracted position shown by the imaginary line in FIG. 1 in a state in which the tension spring 37 exerts a spring action on the lever 35 side.

When the pressing head 25 moves backward from the position shown by the imaginary line in FIG. It is pressed against the rearmost bolt set 23 from behind. Then, the auxiliary pressing head 34 is returned to the position of the imaginary line after the switching of the stocker rows or the replacement of the cartridge is completed and the pressing head 25 is reset.

FIG. 3 shows another embodiment of the invention.

The basic configuration of this embodiment is the same as that of the previous embodiment. Hereinafter, parts that are substantially the same as those in the previous embodiment will be denoted by the same reference numerals in the figures, and parts unique to this embodiment will be explained.

In this embodiment, after switching the stocker row or replacing the cartridge 17 with a new one, the newly set stocker row or cartridge 17 is
6 to 18 and the bolt set 23 stored therein, the pressing head 25 and the movable table 26, which are transfer means, can be returned to the initial position.

Therefore, for each suppression head 25, an elevating table 42 that can be moved up and down along the front and rear guide rods 41 on the movable table 26 is provided, and the rod 29 on which the pressing head 25 is mounted is supported on the elevating table 42. A supporting portion 27 is fixed thereto.

The movable base 26, which is movable in the front-back direction, is provided with a lowering cylinder 43 that lowers the press head 25 to a position where it does not interfere with the stocker row already set at the rear when the press head 25 is moved backward. has been done. Further, a return spring 44 is disposed between the elevator platform 42 and the two movable platforms 26 along the guide rod 41.

After the cartridges 16 to 18 have been shifted to the position where a new stocker row is set, or after a new cartridge 16 to 18 has been set, the elevator platform 42 is lowered to the retracted position by the action of the lowering cylinder 43, and the elevating table 42 is lowered to the retracted position. The movable base 26 moves rearward. Then, when the operation of the lowering cylinder 43 is released at the rear end position, the lifting platform 4
2 is pushed up by the return spring 44, contacts the stopper portion 41a at the tip of the guide rod 41, and is held at a normal height. In this state, a forward transfer force is applied to the pressing head 25 and the movable base 26 by the rodless cylinder 4, and a push is applied from the rear to the new stocker row.

In FIG. 4, the solid line shows the state in which the suppression head 25 is retracted downward, and the two-dot chain line shows the state in which the suppression head 25 has returned to its normal height.

In this embodiment, the pressing head 25 and the movable table 26 can be moved back after setting a new stocker row, so parts can be supplied without providing an auxiliary suppressing head or the like as in the previous embodiment. It can be made virtually uninterrupted.

Note that the present invention can also be applied to the supply of parts other than bolts.

(Effects of the Invention) Since the present invention is configured as follows, it is possible to reliably supply parts during automatic assembly and the like.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional view of one embodiment of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a partial cross-sectional view of another embodiment of the present invention, and FIG.
The figure is a partial side view of the same embodiment. 78・Frame, 13.14・Moving frame, 15 Cylinder device, 16-I8: Cartridge (stocker)
, 209 positioning pin, 23 bolt set, 25. Suppression head, 26. Movable base, 34, auxiliary pressing head, 41
・Guide lot, 42: Lifting platform, 43. Lowering cylinder, 44. return spring.

Claims (3)

[Claims] (1) A support part that positions and supports a stocker in which a large number of parts are housed in rows so that they can be pushed out in sequence, and a support part that is connected to the extrusion end side of the stocker supported by the support part and that is fed out from the stocker. and a transfer means for pushing the parts in the transfer path and in the stocker from behind to transfer the parts in the parts row to the discharge end side. A parts supply device featuring: (2) The component supply device according to claim 1, further comprising an auxiliary transfer means for pushing the components in the transfer path in the discharge direction when returning the transfer means to the retracted position. (3) The parts supply device according to claim 1, further comprising means for causing the transporting means to move so as not to interfere with the stocker and the parts in the stocker when returning the transporting means to the retreated position.