JPH11138381A - Machining facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form up a facility in such a way that the various types of works can be efficiently machined in a machining facility using a jig carrying dolly. SOLUTION: A first work storing part 2 storing works W before machining, a second work storing part 3 storing works W after machining, a jig storing part 4 storing jigs 5, and a plurality of machine tools 6 and 7, are disposed along the specified tracking part 1. A jig carrying dolly 8 is provided, which is so constituted as to be moved along the tracking part 1, while supporting the jigs 5, and allow the jigs 5 to be freely transferred at the jig storing part 4, and as to allow each jig 5 to be also transferred at the machine tools 6. A hand part 9 is provided, which holds each work W, and can handle it freely, and a hand dolly 10 is also provided, which is freely moved along the tracking part 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically feeding a workpiece to a plurality of machine tools in order to perform machining.
The present invention relates to a machining facility configured to automatically collect a workpiece after machining.

[0002]

2. Description of the Related Art An example of such a machining facility is shown in FIG. In this machining facility, a plurality of machine tools 21 are arranged along the track portion 1, a first work storage section 22 that stores a work W before machining at a position slightly away from the machine tool 21, and a first work storage section 22 after machining. A second work storage unit 23 for storing the work W, a work exchange unit 24, and a robot hand 25 are arranged, and a jig transport that reciprocates along the track unit 1 while supporting the jig 5 holding the work W. A cart 8 is provided.

[0003] With the above configuration, the jig carrier 8 supporting the jig 5 holding the work W moves and stops at the predetermined machine tool 21, and the jig 5 (work W) is transferred to the machine tool 21. Then, the workpiece W is machined in the machine tool 21, the jig 5 (work W) is transferred to the jig transport trolley 8 again, and the jig transport trolley 8 is moved to another machine tool 2.
1 and the same operation as described above is performed.

[0004] When the machining of the workpiece W is completed, the jig transporting trolley 8 moves to the workpiece exchanging section 24 and stops there.
The (work W) is transferred to the work exchanging unit 24, the work W after machining is removed from the jig 5 by the robot hand 25, and is placed in the second work storage unit 23, and the work W is not machined by the robot hand 25. Is taken out of the first work storage section 22 and attached to the jig 5. As a result, the jig 5 holding the workpiece W before machining is transferred from the work exchanging unit 24 to the jig transport cart 8 again, and the jig transport cart 8 moves to the machine tool 21 and is similar to the above. The operation is repeated.

[0005]

When the machining facility shown in FIG. 6 is configured to be capable of machining various types of workpieces W, only one type of jig 5 can be used for various types of workpieces. Since it is not possible to handle W, it is necessary to prepare a plurality of jigs 5 corresponding to various types of workpieces W,
A jig exchanging unit 26 for exchanging the jig 5 of the jig transport trolley 8
It is necessary to provide the track section 1 separately from the work exchange section 24.

Thus, for example, when machining of one workpiece W is completed and it is necessary to replace the jig 5 of the jig transport trolley 8 with another jig 5, the jig transport trolley 8 first replaces the workpiece. The jig 5 is moved to the part 24 and stopped.
4 and the work W after machining from the jig 5
Is removed, and the jig 5 from which the work W has been removed is transferred from the work exchange unit 24 to the jig transporting cart 8. Next, the jig transporting cart 8 is moved to the jig exchanging section 26 and stopped there, and is replaced by another jig 5 by the jig exchanging section 26. The jig 5 is transferred to the work changing unit 24, the work W before machining is attached to the jig 5, and the jig 5 (work W) is moved from the work changing unit 24 to the jig 5. It can be transferred to the transport cart 8.

As described above, when a plurality of jigs are prepared so as to be able to machine various types of workpieces, the jig transporting trolley moves to both the workpiece exchange section and the jig exchange section. As a result, a lot of time is required to replace the jig and mount the workpiece before machining, so that there is room for improvement in terms of improving the overall work efficiency. SUMMARY OF THE INVENTION It is an object of the present invention to provide a machining facility that uses a jig transporting trolley so that machining of various types of workpieces can be efficiently performed.

[0008]

Means for Solving the Problems [I] If a hand cart that can move independently of the jig transport cart is provided as in the feature of claim 1, for example, machining of one workpiece is completed. When it is necessary to replace the jig of the jig transport trolley with another jig, the following can be performed by the hand trolley. When the machining of one workpiece is completed, the machined workpiece is taken out of the jig carrier by the hand of the hand cart at any position on the track, and the jig is transported to the jig carrier. Leave as is. Next, from an arbitrary position of the above-mentioned track portion, the hand trolley (the hand portion holding the work after machining) moves to the first and second work storage portions. The jig transport trolley from which the work has been taken out moves to the jig storage section. Thus, the hand cart places the held work after machining in the second work storage section, takes out the work before the next machining from the first work storage section, and holds the work. In the jig storage, the jig is transferred to another jig corresponding to the workpiece before the next machining.

As described above, when the holding of the workpiece before the next machining by the hand portion of the hand cart and the exchange of the jig in the jig carrier are performed in parallel with each other, the jig carrier and the hand cart are provided. Move in the direction of approaching each other, the jig transport cart moves toward the hand cart with the hand cart stopped, or the hand cart faces the jig transport cart with the jig cart stopped. By moving, the jig transport trolley and the hand trolley meet at a predetermined position of the track portion. Thereby, at a predetermined position of the track portion,
The work before machining held by the hand part of the hand cart is transferred to the jig of the jig carrier, and machining of the workpiece by the jig carrier and the machine tool is started.

When the machining of one workpiece is completed as described above and it is necessary to replace the jig of the jig transporting trolley with another jig, the configuration shown in FIG. As described in [Problems to be Solved by the Invention], the jig transporting trolley moves to the work exchanging section and then moves to the jig exchanging section,
Each step must be performed one by one in order to move to the work changing section again. On the other hand, if the hand cart is provided as the feature of claim 1, the hand cart is moved while the jig transport cart moves to the jig storage section and exchanges the jig as described above. The work after machining is brought to the second work storage part, and the work before the next machining is brought from the first work storage part. Therefore, it is necessary to perform each step one by one as described above. There is no. In the case of the feature of claim 1, the predetermined position of the track portion where the jig transporting trolley and the hand trolley meet, such as the position of the machine tool most convenient for the workpiece before machining held on the hand of the hand trolley, etc. As described above, it is possible to set an arbitrary position on the track portion.

[II] In a machine tool, a jig (work) is directly transferred from a jig carrier to a machine tool, and the machine tool is configured to hold the jig and machine the work. A jig is provided in the model or the machine tool itself, and only the work is transferred from the jig carrier to the machine tool (the jig remains on the jig carrier), and the workpiece is machined. There is a model number.

When a hand truck is provided as in the first aspect of the present invention, when transferring only the work from the jig carrier to the machine tool, the hand portion of the hand carrier leaves the jig from the jig carrier and only the work. , And transfer it to a machine tool. When transferring the jig (work) from the jig transport trolley to the machine tool, the jig (work) may be directly transferred from the jig transport trolley to the machine tool without using the hand trolley.

[III] According to the feature of the second aspect, similar to the case of the first aspect, the "action" described in the above [I] and [II] is provided, and in addition to this, the following "action" is provided. "
It has. When a plurality of jig transport carts are provided as in the feature of claim 2, machining of a plurality of works can be performed in parallel by the plurality of jig transport carts. In this case, if the hand cart is arranged between the plurality of jig carrier carts, for example, a work (or a jig (work)) is taken out from the jig carrier cart located on one side of the hand cart, and the hand cart is taken out. The operation of transferring the jig to the other side of the jig transport trolley can be performed by the hand portion of the hand trolley.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an entire machining facility. In a predetermined track portion 1 constituted by a linear rail, a first work storage portion is provided at one end of the track portion 1. 2 and the second work storage section 3 are arranged, and a plurality of types of workpieces W before machining are fed into the first work storage section 2, and a plurality of types of machining processing are performed in the second work storage section 3. The subsequent work W is temporarily stored and sent out to the next step.

A jig storage section 4 is arranged at the other end of the track section 1, and a jig 5 such as a pallet for holding a work W is
A plurality of types of works W are stored in the jig storage unit 4 in accordance with each of the types. In the track section 1, a plurality of first first and second work storage sections 2 and 3 and a jig storage section 4 are provided between the first and second work storage sections 2 and 3.
And the second machine tools 6 and 7 are arranged, and the jig 5 (work W) is transferred from a jig carrier 8 to be described later while the work W is held on the jig 5, and machining is performed. 1 There is a second machine tool 7 in which the machine tool 6 and the jig 5 are left on the jig carrier 8 and only the work W is transferred and machined.

A jig carrier 8 is provided which is movable along the track 1 while supporting the jig 5. Work W
Is provided with a hand unit 9 which can be held and handled freely, and a hand cart 10 which is movable along the track unit.
The jig transport trolley 8 and the hand trolley 10 are configured to be movable independently of each other.

Next, the operation flow of the machining facility shown in FIG. 1 will be described. As shown in FIG. 1, the jig 5 holding the work W is supported by the jig transport trolley 8, and the jig transport trolley 8 moves to the predetermined first machine tool 6 in the order of machining. When stopped, the jig 5 (work W) is transferred from the jig carrier 8 to the first machine tool 6 by the conveyor 6a of the first machine tool 6, and the work W is machined on the first machine tool 6. Is done. When the machining is completed, the jig 5 (work W) is transferred from the first machine tool 6 to the jig carrier 8 by the conveyor 6a. Next, the jig carrier 8 moves to another first machine tool 6 and stops, and the same operation as described above is performed.

When the jig carrier 8 moves to the second machine tool 7 and stops, the hand carrier 10 also moves closer to the jig carrier 8 and the second jig carrier 8 stops. Stop at the machine tool 7. As a result, when the jig transport trolley 8 and the hand trolley 10 move to the predetermined second machine tool 7 and stop, the hand unit 9 of the hand trolley 10 moves the jig transport trolley 8.
The workpiece W is removed from the jig 5, and the workpiece W is transferred to the second machine tool 7 while the jig 5 is left on the jig carrier 8, and the workpiece W is machined in the second machine tool 7. Is done. When the machining is completed, the hand unit 9 of the hand cart 10 takes out the work W from the second machine tool 7 and attaches it to the jig 5 of the jig transport cart 8. Next, the jig transport trolley 8 and the hand trolley 10 move to another second machine tool 7 and stop, and the same operation as described above is performed.

When the machining of one workpiece W is completed as described above, the workpiece W to be machined next is processed.
Are the same type, there is no need to replace the jig 5 supported by the jig transporting trolley 8 with another jig 5. In such a case, the jig transport trolley 8 and the hand trolley 10 together
Then, the work W moves to the second work storage units 2 and 3 and stops, and the hand unit 9 of the hand carriage 10 removes the machined work W from the jig 5 of the jig conveyance carriage 8 and conveys the jig 5 to the jig 5. The work W after machining is placed in the second work storage unit 3 while being left on the carriage 8. Next, the hand unit 9 of the hand cart 10 takes out the work W before machining from the first work storage unit 2 and attaches the work W to the jig 5 of the jig transport cart 8.

When the machining of one workpiece W is completed, if the workpiece W to be machined next is of a different type, the jig 5 supported by the jig carrier 8 is replaced with another jig. 5 needs to be replaced. In such a case, as shown in FIG. 2, for example, assuming that the machining is completed in the predetermined first or second machine tool 6, 7, this first or second machine tool
At the positions of the machine tools 6 and 7, the hand unit 9 of the hand cart 10 takes out and holds the machined workpiece W from the jig 5 of the jig transport cart 8, and as shown in FIG. Hand unit 9 holding work W after processing 9)
Moves to the first and second work storage units 2 and 3. The jig transport trolley 8 from which the work W after the machining is taken out moves to the jig storage unit 4.

As a result, the hand cart 10 that has moved to the first and second work storage sections 2 and 3 and stopped, places the held work W in the second work storage section 3 and performs machining. The previous work W is taken out from the first work storage section 2 and held, and moves toward the jig transporting cart 8 as shown in FIG.

As shown in FIG. 3, when the jig transport cart 8 moves to the jig storage section 4 and stops, the jig 5 supported by the jig transport cart 8 is transferred to the jig storage section 4. Then, another jig 5 (the jig 5 corresponding to the workpiece W before machining held by the hand unit 9 of the hand cart 10) is transferred to the jig transport cart 8, and as shown in FIG. The tool carrier 8 moves toward the hand carrier 10.

As described above, the jig transporting trolley 8 supporting another jig 5 and the hand trolley 10 (the hand unit 9 holding the work W before machining) move in the directions approaching each other. As shown in FIG. 4, when the jig transport trolley 8 and the hand trolley 10 stop at a predetermined position of the track portion 1,
The workpiece W before machining held by the hand unit 9 of the hand cart 10 is attached to the jig 5 of the jig transport cart 8. In this case, for a predetermined position of the track portion 1 where the jig transporting cart 8 and the hand cart 10 meet, the first or second most convenient first or the most convenient work W for the workpiece W held by the hand 9 of the hand cart 10 before machining. (2) It can be set at an arbitrary position on the track portion 1, such as the position of the machine tools 6, 7.

[First Embodiment of the Invention] Instead of the structure shown in FIG. 1, a structure shown in FIG. 5 may be used. As shown in FIG. 5, in a predetermined track portion 1 configured by a linear rail, a first work storage portion 2 and a second work storage portion 3 are disposed at the center of the track portion 1, and one of the track portions 1 and A jig storage section 4 is disposed at both of the other ends, and a plurality of first and second work pieces are provided between both the first and second work storage sections 2 and 3 and the jig storage section 4. Machines 6, 7 are arranged. Two jig transport carts 8 are provided that are movable along the track section 1, and a hand cart 10 having a hand unit 9 is disposed between the two jig transport carts 8.
In this case, the two jig transport carts 8 and the hand cart 10 are configured to be movable independently of each other.

[Second Alternative Embodiment of the Invention] FIGS. 1 and 5
In the configuration shown in FIG. 1, it cannot be said that one of the jig transporting cart 8 and the hand cart 10 passes the other, but in the configuration shown in FIGS. The jig carrier 8 may be configured to pass through the side so that one of the jig carrier 8 and the hand carrier 10 can pass the other. In this case, one hand cart 10 may be arranged for three or four jig transport carts 8.

In the configuration shown in FIGS. 1 and 5,
It is a book, but two track parts 1 are arranged parallel to each other,
The jig transport trolley 8 is arranged on one track 1 and the hand trolley 10 is arranged on the other track 1 so that the jig transport trolley 8 and the hand trolley 10 do not interfere with each other. You may comprise so that it can move independently. In this case, a plurality of jig transport carts 8 may be arranged on one track portion 1. In the configuration shown in FIGS. 1 and 5, the track portion 1 may be formed in a closed loop shape instead of a straight line shape.

[0027]

According to the first aspect of the present invention, in a machining facility using a jig transport trolley, a movable hand trolley having a hand portion holding a work is provided, so that the jig transport trolley can be used. In parallel with the replacement of the jig, the hand bogie can be configured to take the workpiece after machining and bring the workpiece before machining, so that the workpiece and jig can be replaced. Can be shortened, and the overall work efficiency can be improved.

By arranging the hand cart according to the first aspect of the present invention, a predetermined position of the track portion where the workpiece before machining held by the hand portion of the hand cart is transferred to the jig of the jig transport cart. Can be set at any position on the track, and can be used for both machine tools of the type that transfers only the workpiece and machine tools of the type that transfers the jig (work). This makes it possible to perform machining efficiently and easily, and to further improve the overall work efficiency.

According to the feature of the second aspect, the "effect of the invention" of the first aspect is provided similarly to the case of the first aspect, and in addition to the "effect of the invention", the following "invention" is provided. Of the effect. By providing a plurality of jig transport carts as in the feature of claim 2, it becomes possible to perform machining of a plurality of works in parallel by the plurality of jig transport carts, thereby reducing the overall work efficiency. It could be further improved. In this case, the work part of the hand truck can be configured to transfer the work from the jig carrier to another jig carrier, so that it can easily cope with various types of workpieces and efficiently. The machine work can be performed, and the overall work efficiency can be further improved.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a machining facility.

FIG. 2 is a plan view showing a state in which machining of one workpiece has been completed, and the hand portion of the hand cart has taken out the machined workpiece from the jig transport cart.

FIG. 3 shows a state in which the hand cart (hand unit) holding the machined workpiece moves to the first and second work storage units after the state of FIG. 2, and the jig transport cart moves to the jig storage unit; Plan view showing the state

FIG. 4 is a view showing a state in which, after the state shown in FIG. 3, a hand trolley (hand part) holding a next workpiece before machining and a jig transport trolley having exchanged a jig move so as to approach each other;
FIG. 2 is a plan view showing a state in which a hand portion of the hand cart has attached a workpiece before machining to a jig of a jig carrying cart.

FIG. 5 is an overall plan view of a machining facility according to the first alternative embodiment of the present invention;

FIG. 6 is an overall plan view of a machining facility according to the related art.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 track part 2 first work storage part 3 second work storage part 4 jig storage part 5 jig 6,7 machine tool 8 jig transport trolley 9 hand part 10 hand trolley W work

Claims (2)

[Claims] 1. A first work storage unit for storing a work before machining, a second work storage unit for storing a work after machining, and a jig for holding the work along a predetermined track. A jig storage unit for storing the jig and a plurality of machine tools are arranged, the jig is supported and moved along the track, and the jig is freely transferable with the jig storage unit. A jig transport trolley configured to be able to transfer the jig freely with the machine tool, and a hand trolley that includes a hand part that can hold and handle the work and that is movable along the track part. Equipped machining facilities. 2. A first work storage section for storing a work before machining, a second work storage section for storing a work after machining along a predetermined track, and a jig for holding the work. A jig storage unit for storing the jig and a plurality of machine tools are arranged, the jig is supported and moved along the track, and the jig is freely transferable with the jig storage unit. A plurality of jig transport carts configured to be able to transfer the jig in the machine tool; and a hand cart capable of holding and handling the workpiece and being movable along the track. A machining facility, comprising: the hand cart between the plurality of jig transport carts.