JPH0627298Y2 - Parts delivery device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to an improvement of a parts delivery device.

(Prior Art) Conventionally, when assembling a component having a small shape to an object to be assembled, for example, a component which has been conveyed to a component take-out position by a component conveyer such as a belt conveyor is temporarily received by a component receiver that includes a clamp device. It is common practice to receive and then deliver the parts received by the parts receiving means from the parts receiving means to a working means such as a parts assembling robot.

(Problems to be solved by the invention) By the way, it is usually difficult for the component receiving means to receive the small-sized component conveyed to the component extracting position by the component conveying means such as the belt conveyor as described above. For example, the suction holding means such as a vacuum pad temporarily sucks and holds the component, and the component sucked and held by the suction holding means is supplied to the clamp position so as to be delivered to the component receiving means. As described above, since the component conveyed to the component take-out position is received not through the component receiving means directly but through the suction holding means, there is a problem that it takes time to deliver the component to the working means.

The present invention has been made in view of such a point, and its object is to receive a component conveyed to a component taking-out position by a component conveying means such as a belt conveyor as described above in association with the operation of the component receiving means. By taking appropriate means to obtain the parts, the parts conveyed to the parts taking-out position are directly received by the article receiving means without using suction holding means such as a vacuum pad, and the time required for delivering the parts to the working means is shortened. It is to try to make it. Furthermore, it is to improve the accuracy of component delivery by preventing the components from tilting during component delivery.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the solution means of the present invention is provided with a component conveying means for conveying a component to a component taking-out position. Further, a pedestal having a guide hole penetrating in the up-down direction corresponding to the above-mentioned component taking-out position is provided in front of the downstream end of the component conveying means. Further, a push-up unit for guiding the component conveyed by the component conveying means to the component take-out position and pushing the guide hole upward is provided below the component take-out position. Further, a component receiving means for descending to the upper surface of the cradle to receive the component pushed up by the pushing-up unit to the working means is provided above the component taking-out position. In addition, the push-up unit is connected to the lowering operation of the component receiving means to perform the push-up operation, and the pusher means for pushing up the component to the push-up unit after the component receiving means descends to the upper surface of the cradle. It is characterized in that it is provided in the receiving means.

(Operation) With the above configuration, in the present invention, when a component is conveyed to the component taking-out position of the cradle by the component conveying means, the component receiving means provided above it descends and is provided in the component receiving means. By the pusher means, the push-up unit provided below the component taking-out position is linked to the lowering operation of the component receiving means and is pushed up, whereby the component conveyed to the component taking-out position is moved upward. Is pushed up by and is delivered to the component receiving means.

As described above, since the component conveyed to the component take-out position is directly received by the article receiving means without using the suction holding means such as a vacuum pad, compared to the case where the component receiving is performed through the suction holding means. One process can be omitted, and the time required to deliver the parts to the working means can be shortened accordingly.

In addition, the component at the component take-out position is guided upward by the guide hole penetrating in the vertical direction of the cradle,
Since the parts are delivered to the parts receiving means that are waiting for descending on the upper surface of the receiving stand, the parts are directly delivered from the guide holes to the parts receiving means, and during this delivery, the posture of the parts is regulated by the peripheral wall of the guide holes. Holds in the posture and does not lean. In addition, the movement distance of the component during this period is short, and the posture of the component is less likely to collapse.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 6 shows a plug press-fitting station S equipped with a component delivery device according to an embodiment of the present invention. The component delivery device is used for sealing a plurality of holes as components to a cylinder block W of an engine for vehicles such as automobiles. Plug A, A, ... (First
(Shown in FIG. 2 and FIG. 2), each plug A is to be delivered to the plug press-fitting device.
Before entering the description of the component delivery device, an outline of the plug press-fitting work in the plug press-fitting station S will be described.

First, when the cylinder block W is carried into the plug press-fitting station S from the direction of the arrow in the figure, the model detecting device 1 detects the model, and then the sealant applying device 2 detects the model detecting information of the model detecting device 1. Based on the above, the sealant is applied to various holes of the cylinder block W. afterwards,
The cylinder block W is turned 90 ° in the horizontal direction by a reversing device (not shown) so that the front surface and the rear surface of the cylinder block W are in a horizontal posture in a direction orthogonal to the conveying direction, and the cylinder block W is operated by the first plug press-fitting device 3 as a working means. Multiple plug press-fitting holes on the front and rear sides of the plug A according to the hole diameter,
Press in A, ... In this case, the plugs A, A, ... Are delivered from the component delivery device 4 to the first plug press-fitting device 3. After that, the cylinder block W is turned 90 ° in the horizontal direction by an unillustrated reversing device to return its front and rear surfaces to the vertical position in the conveying direction, and the second plug press-fitting device 5 also serves as a working means. The plugs A, A, ... According to the respective hole diameters are press-fitted into a plurality of plug press-fitting holes on both side surfaces of the cylinder block W. Also in this case,
The plugs A, A, ... Are delivered from the component delivery device 4 to the second plug press-fitting device 5. Next, after the taper screw is screwed into the processing hole such as the oil passage of the cylinder block W by the screw tightening device 6, the cylinder block W is again turned 90 ° in the horizontal direction by the reversing device 7 and conveyed to the next-stage work station. To do so.

Next, the parts delivery device 4 of the present embodiment will be described with reference to FIGS.
It will be described with reference to the drawings.

The component delivery device 4 is a component for delivering a plurality of plugs A, A, ... To the first and second plug press-fitting devices 3, 5 as shown in enlarged detail in FIGS. 1 and 2. It comprises two belt conveyors 7 and 7 (one of which appears in FIG. 1) as a conveying means, and a pedestal 8 is provided in front of the downstream end (the left end in FIG. 1) of the conveyance of each belt conveyor 7. A plurality of (six) guide holes 8a, 8 are provided on the upper surface of the pedestal 8 and vertically penetrate therethrough corresponding to the component taking-out position.
are formed at predetermined intervals in the direction orthogonal to the component conveying direction, and a plurality of plugs A, A, ... Six guide holes 8a are formed at predetermined intervals in the belt width direction, and the guide holes 8a of the receiving table 8 are sequentially conveyed above the parts picking position as the parts picking position.

Further, below the component take-out position of the receiving table 8, six first insertion holes 9, 9 ... Which penetrate vertically are formed at predetermined intervals in the belt width direction so as to communicate with the respective guide holes 8a. Six second insertion holes 10, 10, ... That also penetrate vertically are formed on the front end side of the front end side at a predetermined interval in the belt width direction (only one appears in FIG. 1). There is. A shaft 11 extending in the belt width direction is disposed below the pedestal 8 so as to be supported by brackets 12 and 12. The shaft 11 includes six links 1
.. are mounted rotatably at predetermined intervals in the belt width direction. Further, one end of each link 13 has a push-up rod 14 fitted in each first insertion hole 9 of the pedestal 8 so as to be vertically movable, and the other end thereof has each second rod 2.
The push-down rods 15 inserted into the insertion holes 10 so as to be movable in the vertical direction are connected to the insertion holes 10. Further, at the front end (left end in FIG. 1) of the pedestal 8, the six guide rods 17, 17, ...
A connecting member 18 connected to the upper end of the thrusting rod 15 is biased and supported upward by the spring force of a coil spring 19 on each of the guide rods 17.

At any time, as shown by the solid line in FIG. 1, the thrust rod 15 is pulled upward by the spring force of the coil spring 19, so that the push rod 14 is pulled downward via the link 13. When the plug A is taken out, as shown by the phantom line in FIG. 1, the pushing member 33 is pressed against the head of the bolt 20 projecting from the upper end of the push-down rod 15 by the extension operation of the pusher cylinder 32 described later, and the push-down rod 15 is removed. By pushing down against the spring force of the coil spring 19, the push-up rod 1
4 is pushed up via the link 13. Therefore, each of the plugs A conveyed to each of the component pick-up positions by each of the belt conveyors 7 is guided to each of the guide holes 8a by the push-up rods 14, the push-down rods 15, the links 13 and the like, and the plugs A (above the part receiving position) are guided. ), The push-up unit 21 is configured. In addition, in FIG. 1 and FIG. 2, 62, 62, ...
Is a proximity switch for detecting whether or not each plug A has been conveyed to the cradle 8 by each belt conveyor 7.

Further, as shown in enlarged detail in FIG. 3 to FIG. 5, above the component take-out position, a component that descends to the upper surface of the receiving table 8 and receives each plug A pushed up by the push-up unit 21. Clamping type clamper 22 and hooking type clamper 2 as receiving means
The guide rails 25 (6th and
(As shown in the drawing), the base 26 is fixedly arranged so as to be horizontally movable. The clamp type clamper 22 is a fluid pressure cylinder 27 provided on the lower surface of the base 26.
And a pair of clamp claws 28 at the tip of the piston rod 27a extending below the fluid pressure cylinder 27.
A clamp jig 28 having a and 28a is attached via a mounting plate 29. Further, a rod 30 is arranged on the clamp jig 28 so as to be located between the clamp claws 28a, 28a, and the rod 30 is constantly urged downward by a spring force of a coil spring 31 which is compressed. On the other hand, when the plug A is clamped, it is contracted by the thrust force of the thrust rod 14 of the thrust unit 21, and when the plug A is delivered, it is moved downward by the spring force of the coil spring 31. Further, the mounting plate 29 is provided with a vertical portion 29 having a pair of through holes 29a, 29a penetrating in the vertical direction, and both through holes 29a, 2 of the vertical portion 29 are provided.
A pair of guide members 24, 24 extending downward from the base 26 are fitted and inserted in the 9a, and the fluid pressure cylinder 27
The clamp jig 28 that can be moved up and down by the expansion and contraction operation is stably supported. Further, a pusher cylinder 32 having a downwardly extending piston rod 32a as pusher means is arranged on the mounting plate 29 in parallel with the fluid pressure cylinder 27. In the pusher cylinder 32, the clamper 22 is received. The head of the bolt 20 of the thrusting rod 15 of the thrusting unit 21 is pushed down to the pressing member 33 provided at the tip of the piston rod 29a.
By pressing and pushing down with, the push-up rod 14 is moved upward via the link 13, so that each plug A conveyed to the component taking-out position is pushed upward (the component receiving position) through each guide hole 8a. Has been done.

On the other hand, each of the hook type clampers 23 is
6 is provided with a cylindrical clamp jig 36 provided on a mounting plate 34 extending downward from 6 via a bracket 35, and the clamp jig 36 has a piston rod 37a with its tip facing downward and extending downward. A fluid pressure cylinder 37 is arranged. Further, in the clamp jig 36, a claw 39 which rotates about a shaft 38 as a rotation center is urged in a clockwise direction in FIG. 5 by a spring force of a coil spring 40 to clamp and fix a pin-shaped stopper 41. It is arranged so as to abut the outer surface of the tool 36. Furthermore, the clamp jig 3
6, a pusher cylinder 32 having a downwardly extending piston rod 32a as pusher means is arranged in parallel with the fluid pressure cylinder 37.
2 is a pressing member provided at the tip of the piston rod 32a so that the bolt 20 head of the push-down rod 15 of the push-up unit 21 is extended by the clamper 23 being lowered to the upper surface of the pedestal 8 and then extended. It is pushed down by 33 and pushed down, and the push-up rod 14 is pushed through the link 13.
Is moved upward, so that each plug A conveyed to the component taking-out position is pushed upward through the guide holes 8a (component receiving position). In addition,
In FIG. 3, 42 is a proximity switch for detecting the rising end positions of the clamp claws 28a, 28a, and 43 is the clamp claw 2
It is a proximity switch for detecting the opening of 8a and 28a. Further, in FIG. 5, 44 is a pusher cylinder 3
2 is a proximity switch for detecting the descending end position of 2.

Further, the configurations of the first and second plug press-fitting devices 3 and 5 for press-fitting the plugs A delivered from the component delivery device 4 configured as described above into the plug press-fitting holes of the cylinder block W will be described. . Since the first and second plug press-fitting devices 3 and 5 have the same structure,
Here, the configuration of the second plug press-fitting device 5 that press-fits the plugs A into the plug press-fitting holes on both sides of the cylinder block W will be described, and the detailed description of the configuration of the first plug press-fitting device 3 will be omitted. I will.

The second plug press-fitting device 5 has a press-fitting cylinder 46 having a horizontally extending piston rod 46a supported by a first support base 45 and a first press-fitting cylinder 46 arranged in front of the second press-fitting device 5 as shown in FIG. The second support base 47 is provided with a rectangular frame-shaped press-fitting jig 49 supported so as to rotate about the shaft 48 by 90 °, and the first support base 45 includes a fluid pressure cylinder 52 described later. The shaft 50 is connected to the first support base 45 by the shaft 50 so as to move backward together with the second support base 47 by the expansion operation of the above, and approach the second support base 47 by the contraction operation of the fluid pressure cylinder 52. Also,
The first and second support bases 45, 47 are supported by a pair of guide rails 51, 51 (only one of which is shown in the figure) extending in a direction orthogonal to the cylinder block W transport direction, and the first support base 45 is , Is connected to the tip of a piston rod 52a of a fluid pressure cylinder 52 arranged below it. Further, the press-fitting jig 49 has a support member 53.
, And a plurality of press-fitting heads 56, 56, which are biased rearward by a coil spring 55 and each plug A is set at the tip. And are provided on two adjacent surfaces. Then, two second plug press-fitting devices 5 configured in this way are arranged so as to face each other on both sides of the transport path, and when the plug A is press-fitted into the cylinder block W, first, the second plug press-fitting devices are pressed. Press-fitting jig 49 of device 5
The clamp metal 54 and the press-fitting head 56 corresponding to the model of the cylinder block W are selected by rotating the shaft about the shaft 48 by 90 °. Next, the first support base 45 is moved toward the second support base 47 side by the contraction operation of the fluid pressure cylinder 52, and then the press-fit heads 56 are pressed by the expansion operation of the press-fit cylinder 46, thereby (2) Move the support base 47 closer to the cylinder block W side, and press each clamp metal 54 against both side surfaces of the cylinder block W to move the cylinder block W side.
The press-fitting head 56
Is pressed against the biasing force of the coil spring 55 to press-fit each plug A into the plug press-fitting holes on both side surfaces of the cylinder block W.

A column 57 extending in the horizontal direction is arranged above the two second plug press-fitting devices 5 and 5 so as to cross the conveyance path, and a pressing plate 58 is fixed to the tip of the piston rod 59a. The pressing cylinder 59 is arranged above the cylinder block W so that each plug A
When press-fitting, the pressing cylinder 59 is extended so that the pressing plate 58 presses the cylinder block W from above to fix the cylinder block W against movement. Further, around the pressing cylinder 59, four restriction cylinders 60, 60, ... (Only two are shown in the drawing) are supported and arranged on the upper surface of the pressing plate 58, and below the restriction cylinders 60. A taper cone 61 is fixed to the tip of the extending piston rod 60a. The pressing plate 59 is extended by the pressing cylinder 59.
7 is pressed against the upper surface of the cylinder block W, and then the restricting cylinders 60 are extended so that the press-fitting jigs 4 of the second plug press-fitting devices 5 and 5 are pressed.
By making each taper cone 61 contact the clamp metal 54 of 9 from the rear side, the clamp metal 5 is pressed when the plug A is press-fitted.
It is designed to receive the press-fitting reaction force acting on No. 4.

Therefore, in the above embodiment, the clamp jig 28 (3
6) is brought to a position corresponding to the component receiving position by the lowering operation of the clamper 22 (23) to the upper surface (guide hole 8a) of the receiving table 8, and from this state, by the pressing member 33 which is lowered by the extension operation of the pusher cylinder 32. By pushing down the push-down rod 15 of the push-up unit 21, the push-up rod 14 is pushed upward through the link 13, whereby each plug A conveyed by the belt conveyor 7 to the component take-out position is inserted into each guide hole. It is pushed up via 8a and clamped by the clamp jig 28 (36) waiting at the above-mentioned component receiving position.

From this, each plug A conveyed to the above-mentioned component taking-out position can be directly received by the clamp jig 28 (36) without using the suction holding means such as a vacuum pad, and thus, can be received via the suction holding means. As compared with the case of delivering, the component receiving step can be omitted, and the time required for delivering the components to the first and second plug press-fitting devices 3, 5 can be shortened accordingly.

In addition, the clamps of the clampers 22 (23) which are guided to the guide holes 8a penetrating in the vertical direction of the pedestal 8 and pushed up upwards and are standing by to descend on the upper surface of the pedestal 8 at the parts take-out position. Since it is delivered to the jig 28 (36), each plug A can be delivered directly to each of the clamp jigs 28 (36) through the respective guide holes 8a. Also each plug A
The posture can be regulated by the peripheral wall of each guide hole 8a so as not to be tilted, and the posture can be stably maintained in the regular posture. Therefore, the delivery work of each plug A can be reliably performed.

Moreover, the clamp jig 28 of the clamper 22 (23)
(36) Since it is lowered to the upper surface of the pedestal 8,
Since the moving distance of each plug A is significantly short only by the vertical dimension of each guide hole 8a, the frequency with which each plug A can be stably held in a regular posture can be extremely increased.

In the above embodiment, the case where the delivered component is the plug A that is press-fitted into the cylinder block W of the vehicle engine such as an automobile has been described. However, the present invention is not limited to this, and is applicable to delivery of other components. Of course there is.

(Effects of the Invention) As described above, according to the present invention, after the component receiving means provided above the component take-out position is lowered to the upper surface of the receiving stand, the protrusion provided below the component take-out position. The lifting unit is linked to the lowering operation of the component receiving means and is pushed up by the pusher means to guide the component transported by the component transporting means to the component unloading position to the guide hole of the cradle and above it. Since it is pushed up, the component conveyed to the component take-out position can be directly delivered to the component receiving means, and the time required for delivering the article to the working means can be shortened. Further, since the component is directly delivered from the guide hole to the component receiving means, the component can be stably held in a proper posture so as not to be inclined by the peripheral wall of the guide hole, and the component can be reliably delivered. By reducing the moving distance of the component, the frequency of the posture collapse of the component can be extremely reduced.

[Brief description of drawings]

FIG. 1 is an enlarged vertical side view of a component delivery device according to an embodiment of the present invention, FIG. 2 is an enlarged vertical front view of the same, and FIGS. 3, 4 and 5 are enlarged front views of a clamper and left enlarged views. FIG. 6 is a side view, an enlarged right side view, FIG. 6 is an overall schematic configuration diagram of a plug press-fitting station, and FIG. 7 is a front view of a second plug press-fitting device. 3 ... 1st plug press-fitting device (working means), 4 ... Component delivery device, 5 ... 2nd plug press-fitting device (working means), 7 ... Belt conveyor (component conveying means), 8 ... Cradle, 8a ... Guide hole, 21 ... Push-up unit, 22, 23 ... Clamper (parts receiving means), 32 ... Pusher cylinder (pusher means), A ... Plug (parts).

Claims (1)

[Scope of utility model registration request] 1. A component transporting means for transporting a component to a component unloading position, and a guide hole provided in front of a transporting downstream end of the component transporting means, the guide hole penetrating up and down in correspondence with the component unloading position. A pedestal, a push-up unit provided below the component take-out position, and a push-up unit which guides the component conveyed by the component conveyer to the component take-out position to the guide hole and pushes the component upward, and above the component take-out position. And a component receiving means for receiving the component pushed up by the push-up unit by lowering it to the upper surface of the cradle so as to deliver it to the working means, and the component receiving means provided in the component receiving means for receiving the push-up unit. The push-up operation is performed in conjunction with the downward movement of the component, and after the component receiving means descends to the upper surface of the pedestal, the component is pushed into the push-up unit. A parts delivery device, comprising: pusher means for raising.