JPH11116054A - Carrying device for parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a time for carrying parts and improve working environment while preventing the damage and transformation of parts. SOLUTION: A carrying device for parts has a moving-up and -down mechanism for carried parts 3 to be carried in a vertical direction, an attracting and holding mechanism for carried parts 3 to be attracted and held and an oscillating mechanism for other carried parts 3 laid on the carried parts 3 attracted and held to be oscillated and dropped. The oscillating mechanism for carried parts contains an upper frame 21, a lower frame 22 and a connected wire 23, an oscillating cylinder 24 mounted in a structure in which the lower frame 22 is freely oscillated to the upper frame 21. The oscillating mechanism 24 is used to grant horizontal oscillation to the lower frame 22, give oscillation to the carried parts 3 attracted and held by an attracting pad 14 and drop other carried parts attracted on their lower face thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component conveying apparatus, and more particularly, to a component conveying device having a conveying component suction / holding mechanism which moves up and down by a conveying component elevating / lowering mechanism. The present invention relates to a component transport device that sequentially carries out one sheet at a time from above.

[0002]

2. Description of the Related Art In the field of automobile manufacturing, for example, exterior parts such as a roof panel, a front hood, and a door panel of an automobile are generally formed by pressing a working material made of a steel plate. A plurality of components are stacked and stored in a pallet, and the components stored in the pallet are sequentially transported one by one by a transport hoist in a next processing step.

[0003] A transport hoist is used to carry out parts from the pallet to the next processing step.

The transport hoist includes a suction pad for sucking and holding the components stacked and stored in the pallet from above, and a lifting mechanism for vertically moving the suction pad. Are sequentially sucked and held one by one from above on suction pads of the transport hoist, and are carried out upward by a raising / lowering mechanism.

When the component is carried out, the component held by the suction pad is vertically swung about two or three times by the lifting / lowering mechanism. By swinging in the vertical direction, other components adhered to the lower surface of the suction-held component are shaken down, only one suction-held component is taken out and conveyed, and a plurality of components at a time are removed. Prevents unloading.

The prior art relating to this kind of component transfer by suction pads is disclosed in, for example, Japanese Utility Model Laid-Open No. 62-15 / 1987.
No. 7878 is known.

[0007]

According to the above-described component conveying method according to the prior art, the component sucked and held by the raising and lowering mechanism is given a vertical swing, and the lower surface of the component sucked and held by the swing is provided. The problem that other parts adhered to the sheet are shaken off and a plurality of molded parts are unloaded at one time is prevented.

However, the vertical swing of the suction-held component is given by the vertical movement of the lifting and lowering mechanism of the transport hoist. The time required for transport is long, which is not preferable in terms of work efficiency. In addition, the driving force of the lifting / lowering mechanism itself is large, and the suction-held component and other components attached to the lower surface of the component have a plate-like shape in which the horizontal size is large. As a result, parts may be warped, causing damage, deformation, etc. due to relative sliding contact between the parts, which may cause defective parts in the process, and are repeated between the parts when vertical swing is applied. There is a problem that noise is generated due to the contact and the working environment is deteriorated.

The present invention has been made in view of the above points, and an object of the present invention is to reduce the time required for component transportation,
It is an object of the present invention to provide a component transport device that can improve the working environment while preventing damage and deformation of components.

[0010]

In order to solve the above-mentioned problems, an invention according to a first aspect of the present invention comprises a transport component suction holding mechanism for suction holding a transport component by a suction pad, and a transport component suction holding mechanism. A transport component raising / lowering mechanism for moving the transport component in the vertical direction; and a transport component swinging mechanism for imparting horizontal swinging to the transport component sucked by the transport component suction / holding mechanism. When the transport component is transported upward by the transport component raising / lowering mechanism, the transport component attached to the lower surface of the sucked transport component is given a horizontal swing by the transport component swing mechanism to be dropped. And

According to the invention described in claim 1,
A transport component swinging mechanism that imparts horizontal swinging to the transport component sucked by the transport component suction and hold mechanism is provided.When the transport component sucked by the transport component suction and hold mechanism is lifted and transported by the transport component elevating mechanism, the transport component is moved. Since the horizontal swinging is provided by the swinging mechanism arranged independently of the component raising / lowering mechanism to drop other transported components attached to the lower surface of the sucked transported component, the vertical movement by the transported component lifting / lowering mechanism is performed. The operation time due to the rocking operation can be omitted, the operation time required for transporting the transport components can be reduced, and the improvement of the operation efficiency can be ensured.

Further, since other transport components adhered to the lower surface of the transport component are removed by the horizontal swinging of the transport component swinging mechanism, the transport component does not warp and is damaged or deformed by relative sliding contact between the components. Thus, the occurrence of defective parts in the process can be avoided beforehand, and the generation of noise due to the vertical swing can be prevented, thereby improving the working environment.

According to a second aspect of the present invention, in the component transporting apparatus according to the first aspect, the transport component swinging mechanism includes an upper frame connected to the transport component lifting / lowering mechanism, and the transport component. A lower frame supporting a suction pad of a suction mechanism, a connecting wire for swingably suspending the lower frame on the upper frame, and a lower wire erected between the upper frame and the lower frame by expansion and contraction; A swing cylinder for swinging the frame in the horizontal direction.

According to the second aspect of the present invention, the transfer component rocking mechanism can be realized by a simple configuration including the upper frame, the lower frame, the connecting wire, and the rocking cylinder.

According to a third aspect of the present invention, in the component transporting apparatus according to the first or second aspect, the imparting of the horizontal swinging by the transporting component swinging mechanism is performed by the transporting component raising / lowering mechanism. It is characterized in that it is performed in parallel with the ascending transport, and by performing the swinging operation of the transport component swinging mechanism in parallel with the ascending transport of the transport component, the transport time can be further shortened, and the efficiency of transport work is improved. Can be secured.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a component conveying apparatus according to the present invention.

FIG. 1 is a schematic configuration diagram of a component conveying device according to an embodiment of the present invention. A component conveying device 1 including a conveying hoist mainly includes a conveying component elevating mechanism, a conveying component suction holding mechanism, and a conveying component swinging mechanism. Is configured as

The component transport device 1 transports, from above, a transport component 3 such as a roof panel of the same shape formed by pressing a steel plate, which is stacked and stored in a pallet 2.
The sheets are conveyed one by one to the next processing step.

The transport component raising / lowering mechanism of the component transport apparatus 1 has a raising / lowering unit 11, a raising / lowering driving unit 12, and a control unit 13. The raising / lowering unit 11 is capable of contracting and extending in the vertical direction as shown by an arrow A. The up / down drive unit 12 drives the up / down operation of the up / down unit 11, and the control unit 13 controls the drive of the up / down drive unit 12.

The transport component suction holding mechanism includes one or a plurality of suction pads 14, a vacuum device 15, and a control unit 1.
3, the suction pad 14 is connected to a vacuum device 15,
The suction operation is performed by the vacuum operation of the vacuum device 15.

The suction pad 14 comes into direct contact with the surface of the transport component 3 and sucks and holds the transport component 3 by the vacuum action of the vacuum device 15. The operation of the vacuum device 15, namely, the suction holding operation of the suction pad 14 and the suction operation Each operation of releasing the holding is controlled by an instruction from the control unit 13.

The mechanism for rocking the transporting parts includes an upper frame 2
1, a lower frame 22, a connecting wire 23, a rocking cylinder 24, a cylinder driving unit 25, and a control unit 13. The upper frame 21 is attached to the lower end of the lifting / lowering unit 11 of the transport component lifting / lowering mechanism.

The lower surface of the lower frame 22 is provided with the suction pads 14.
2 and at an appropriate interval, are suspended from the upper frame 21 by the connecting wires 23 at a plurality of locations, and the lower frame 22 is configured to swing freely with respect to the upper frame 21.

The rocking cylinder 24 is connected to the upper frame 21 and the lower frame 2 via a mounting bracket or the like.
As shown by an arrow B between the two, it is stretchably installed along the horizontal direction. The lower frame 2 is moved relative to the upper frame 21 by the expansion and contraction operation of the rocking cylinder 24.
2 is swung in the horizontal direction, in other words, horizontal vibration is applied to the transport component 3 sucked and held by the suction pad 14.
The other conveying parts 3 adhered to the lower surface of the sheet 3 are shaken off.

That is, the swinging cylinder 24, by its expansion and contraction operation, sucks and carries out only the transport component 3 sucked and held by the suction pad 14, thereby preventing a plurality of transport components 3 from being transported at once. it can.

The expansion and contraction operation of the rocking cylinder 24 can be executed independently of the raising and lowering operation by the raising and lowering section 11 of the transport component raising and lowering mechanism in accordance with an instruction from the controller 13.

The rocking cylinder 24 is connected to a cylinder driving unit 25 and drives the cylinder driving unit 25.
For example, an air compressor is used as the cylinder driving unit 25, and the cylinder driving unit 25 is connected to the control unit 13, and the control unit 13 controls the operation of the cylinder driving unit 25.

Next, the operation of the above-described component transfer device 1 will be described.

FIG. 2 is a flowchart showing a component transfer control flow of the component transfer device according to the present embodiment.

First, in the component transport device 1, the control unit 1
The control unit 3 starts the up / down drive unit 12, lowers the up / down unit 11, and moves the suction pad 14 to the transport component suction position (S1). The suction pad 14 that has moved to the transport component suction position contacts the surface of the uppermost transport component 3 stacked and stored in the pallet 2.

Subsequently, the controller 13 controls the vacuum device 15
Is started, or by opening a control valve (not shown) disposed between the vacuum device 15 and the suction pad 14 that have already been started, the suction pad 14 holds the transport component 3 by suction (S2). Here, it is determined whether or not the suction holding of the transport component 3 is reliably performed (S3). If the suction holding is not reliably performed, the process returns to the previous step.

On the other hand, if the suction holding is surely performed, the transport component swinging mechanism is started (S4). The conveyed component rocking mechanism activates the cylinder driving unit 25 by the control unit 13 or opens a control valve (not shown) disposed between the cylinder driving unit 25 and the rocking cylinder 24 which are already in the activated state. Cylinder drive 2
5 repeatedly executes the expansion and contraction operation of the rocking cylinder 24 two or three times.

The horizontal movement or vibration of the suction pad 14 provided on the lower frame 22 is caused by the expansion and contraction operation of the rocking cylinder 24, and the lower surface of the transport component 3 suction-held by the suction pad 14 is held. The other transporting parts 3 that adhere to the surface of the substrate are shaken off.

Then, the transport component 3 sucked and held by the suction pad 14 starts to be transported upward in the low-speed transport by the ascending / descending section 11 (S5), and is subsequently carried out at a high speed (S6). Is transported to the carry-out position of the next-stage processing apparatus, that is, the transported component receiving position of the next-stage processing step (S7).

The transport component 3 transported to the unloading position in the next processing step is received in the next processing step (S8), and the transport of the transport component 3 is completed.

As described above, in the component transporting apparatus 1 according to the present embodiment, when the transport component 3 sucked by the transport component suction holding mechanism is transported upward by the transport component lifting mechanism, the transport component rises and lowers. Work time required for transporting the transport component 3 because the horizontal swing is imparted by the rocking mechanism independently of the ascent by the mechanism and the other transport component 3 attached to the lower surface of the transport component 3 is dropped. Can be shortened, and improvement in working efficiency can be ensured.

Further, since the other transport components 3 attached to the lower surface of the transport component 3 are removed by the horizontal swinging by the transport component swinging mechanism, the transport components do not warp and the damage due to the relative sliding contact between the components is eliminated. Deformation and the like are avoided, and the occurrence of defective parts in the process can be avoided beforehand, and when vertical swing is applied, for example, the contact noise between the parts, such as "gassing", can be reduced, and the working environment can be improved.

Further, in the component conveying apparatus 1 according to the present embodiment, the upper frame 21, the lower frame 22,
With the simple configuration including the connecting wire 23 and the rocking cylinder 24, the above-mentioned transporting component rocking mechanism can be realized.

Further, according to the present invention, the swinging operation of the transporting component swinging mechanism can be performed in parallel with the transporting of the transporting component 3 during the period from the start of transporting to the low-speed transporting. Since parts can be removed, the transport time can be further reduced, and the efficiency of the transport operation can be increased.

It should be noted that the present invention is not limited to the above-described embodiment, but can be applied to, for example, a component transporting device for transporting stamped parts other than automobile parts, and the present invention is limited to the above-described embodiment. Without departing from the spirit of the present invention, various modifications can be made.

[0041]

According to the present invention as described above, according to the component transport apparatus, the transport component is provided with a transport component swinging mechanism for imparting horizontal swing to the transport component sucked by the transport component suction holding mechanism, and the transport component is moved by the transport component lifting mechanism. When the ascending transport is performed, the horizontal swinging by the swinging mechanism is applied to drop the other transporting parts attached to the lower surface of the sucked transporting parts. Can be omitted, the operation time required for transporting the transport components can be reduced, and the improvement of the operation efficiency can be ensured.

Further, since other transport components adhered to the lower surface of the transport component are removed by the horizontal swinging of the transport component swinging mechanism, the transport component is not warped, and is damaged or deformed by relative sliding contact between the components. Has a unique effect irrespective of a simple configuration such that the occurrence of defective parts in the process is avoided beforehand, and the generation of noise accompanying vertical swing is prevented to improve the working environment. The present invention greatly contributes to the industrial field using a component transporting apparatus in which a plurality of stacked transport components are sucked from above by the transport component suction holding mechanism and sequentially transported one by one.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a component transport device according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a component transport control flow of the component transport device according to the present embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 component transfer device 2 pallet 3 transfer component 11 ascent / descent unit 12 ascent / descent drive unit 13 control unit 14 suction pad 15 vacuum device 21 upper frame 22 lower frame 23 connecting wire 24 rocking cylinder 25 cylinder drive unit

Claims (3)

[Claims] 1. A component transporter having a transport component suction and holding mechanism that moves up and down by a transport component lifting / lowering mechanism, wherein a plurality of stacked transport components are sucked from above by the transport component suction and hold mechanism and are sequentially delivered one by one. In the apparatus, a transport component suction and holding mechanism that suctions and holds the transport component by a suction pad, a transport component raising and lowering mechanism that moves the transport component suction and hold mechanism up and down, and a transport component that is suctioned by the transport component suction and hold mechanism And a transport component swinging mechanism for imparting horizontal swinging to the transport component suctioning and holding mechanism. The other transporting parts to be attached are shaken in the horizontal direction by the transporting part swinging mechanism and dropped. Parts transporting device. 2. The transport component swinging mechanism includes: an upper frame connected to the transport component lifting / lowering mechanism; a lower frame supporting a suction pad of the transport component suction mechanism; and a lower frame attached to the upper frame. A connecting wire suspended so as to be swingable, and a shaking cylinder that is installed between the upper frame and the lower frame and swings the lower frame in a horizontal direction by expansion and contraction. Item 1. The component conveying device according to Item 1. 3. The component transport according to claim 1, wherein the imparting of the horizontal swinging by the transport component swinging mechanism is performed in parallel with the upward transport of the transport component by the transport component raising / lowering mechanism. apparatus.