JP2000061745A - Fastening system to carry out intermediate assembly of part halfway of machining - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an epochmaking fastening system to carry out intermediate assembly of a part in the middle of machining capable of manufacturing a high precision product at extremely low cost by depending upon a machine tool used all in dimensional precision, shape precision, positional precision, directional precision and deflective precision of the product and eliminating machining of a part not required in tolerance at the time of carrying out machining and assembly of a plural number of parts. SOLUTION: One part is machined by using a bolt shank to carry out bolt fastening by using a main spindle and a bolt stocker to stock bolts of different sizes, thereafter, another part is supplied and positioned by a robot on the part, thereafter, a bolt of desired size is taken out of the bolt stocker by the bolt fastening shank and the two parts are bolt-fastened on a table of a machine tool. Furthermore, intermediate assembly of the parts is carried out on the midway of machining constituted of an intermediate assembly system halfway of machining to machine the succeeding part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening system for assembling and processing a plurality of parts, and for intermediately assembling parts during processing.

[0002]

2. Description of the Related Art In order to improve the quality and the functionality of industrial products, strict demands are made on the posture tolerance and position tolerance of two components such as parallelism and concentricity between multiple components. Often, the required accuracy is increasing year by year.

On the other hand, the current production method is to set extremely high dimensional tolerances and shape tolerances for individual parts in the design, perform long-time machining with a highly accurate machine tool, and then perform highly accurate measurement equipment. I am assembling while using.

As a result, although high quality and multi-functionality have been achieved, the production cost is inevitably increased.

The fastening processing system of the present invention that enables assembly of parts during processing is composed of three parts: a bolt fastening shank, a bolt stocker, and an intermediate assembly system during processing. Enable and
It is a system that simultaneously processes multiple parts.

As a result, all of the dimensional accuracy, shape accuracy, posture accuracy, position accuracy, and runout accuracy of the product depend on the machine tool used, and the parts not required by the tolerance do not need to be machined. It is a proposition of a completely new concept processing system that can manufacture highly accurate products at low cost.

[0007]

The gist of the present invention will be described with reference to the accompanying drawings.

A system for assembling parts (bolt fastening) on a table of an NC machine tool such as a machining center during machining, which comprises a bolt fastening shank, a bolt stocker, and an intermediate assembly system during machining on the NC machine tool. The bolt fastening shank is a combination of a BT shank attached to the spindle of the machine tool and a fastening tool such as an air wrench for fastening the bolt. The bolt fastening shank is attached to the spindle. By doing so, the machine tool has the function of bolt fastening and assembling during processing, and the bolt stocker is
Located on the machine tool table (within the range of movement of the spindle),
The bolts are arranged according to size, stocked, and configured so that a bolt of a desired size can be passed to the bolt fastening shank. One part is supplied and positioned by a robot, then the bolt of the desired size is taken out from the bolt stocker by the bolt fastening shank, the two parts are bolted on the table of the machine tool, and the latter part The present invention relates to a bolt fastening system that performs intermediate assembly of parts during processing, which is characterized in that it is configured to perform processing.

Further, the bolt stocker is provided with a bolt replenishing mechanism which automatically supplies the bolt having a desired size to the bolt fastening shank and then automatically supplies the bolt to the removed portion of the bolt for the next bolt fastening. The present invention relates to a fastening system according to claim 1, wherein parts are preliminarily assembled during processing.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention (how to carry out the invention) will be briefly described with reference to the drawings and showing its function and effect.

The present invention is composed of three parts, a bolt fastening shank, a bolt stocker, and an intermediate assembly system in the middle of machining. After machining one part by an NC machine tool, another part is robotized on the other part. Supply and position, then take out a bolt of a desired size from the bolt stocker with the bolt fastening shank attached to the spindle of the NC machine tool, and fasten the two parts on the table of the NC machine tool by bolting, The latter part can be processed.

Therefore, all of the dimensional accuracy, shape accuracy, posture accuracy, position accuracy, and runout accuracy of the product depend on the NC machine tool used, and machining is unnecessary for the parts that are not required by the tolerance. Highly accurate products can be manufactured at low cost.

[0013]

Embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the bolt fastening shank of this embodiment is a combination of a BT shank D attached to a main shaft of a machining center and a fastening tool such as an air wrench E for fastening a bolt.

As shown in FIG. 2, the tip portion F of the air wrench is an electromagnet, and the M function of NC control allows the bolt to be attracted and detached. After adsorbing the bolt, it has a function of fastening and fixing a plurality of parts by NC control similar to tap stand, and then detaching from the bolt. By attaching this bolt fastening shank to the main shaft of the machining center, the machining center has a function of bolt fastening assembly during processing.

Further, as shown in FIG. 3, the bolt stocker of this embodiment is located on a table K of a machine tool, aligns bolts by size, stocks L, and bolts N of a desired size are bolted shank. After being removed by
The device is a device for automatically supplying the bolt N to the part O where the bolt is removed and preparing for the next bolt fastening.

The bolt of the desired size depends on the coordinate position on the table, and by macro control of the spindle,
The bolt fastening shank can be moved to the position of a bolt of a desired size, and the bolt N can be taken into the tip portion F of the air wrench.

Further, in the intermediate assembly system in the middle of working of this embodiment, as shown in FIG. 4, after finishing the working of one part P, another part Q is supplied and positioned on the part P by the robot. After that, the NC program production system is for taking out a bolt of a desired size from the bolt stocker with the bolt fastening shank, bolting the parts P and Q on the machine tool, and further machining the part Q. Control of these details is performed by macro control in the NC program and control performed by the personal computer NC. Incidentally, an actual example of an NC program including the above macro control is shown in FIG.

[0019]

Since the present invention is configured as described above, the dimensional accuracy, shape accuracy, posture accuracy, position accuracy, and runout accuracy of products all depend on the machine tool used, and are required by tolerance. No processing is required for the parts that do not exist, and highly accurate products can be manufactured at extremely low cost.

Therefore, a high-quality, multi-functional industrial product can be manufactured in an extremely short time and at low cost.

Further, it is possible to provide a processing technique capable of achieving an appropriate price, and it is possible to prevent the hollowing out of the Japanese industry in the processing industry.

In addition, there is no need for unnecessary machining, energy saving, no chips, etc.
It can be said that it is a 1st century type processing technology.

Further, it is a research and development that is unprecedented, and its social significance is great.

As described above, the present invention provides a fastening system for performing an intermediate assembly of parts during a very epoch-making process which exhibits excellent practical effects.

[Brief description of drawings]

FIG. 1 is a schematic configuration explanatory view of a bolt fastening shank of the present embodiment.

FIG. 2 is a schematic configuration explanatory view of the bolt fastening shank of the present embodiment in a state where the spindle is attached.

FIG. 3 is a schematic configuration explanatory diagram of a bolt stocker of the present embodiment.

FIG. 4 is an operation explanatory view of the intermediate assembly system during processing of the present embodiment.

FIG. 5 is an explanatory diagram showing an example of an NC program for the intermediate assembly system in the middle of processing according to the present embodiment.

   ─────────────────────────────────────────────────── ─── Continued front page    (71) Applicant 598111157             Aoyama Tex Co., Ltd.             192 Aoyamacho, Nagaoka City, Niigata Prefecture (72) Inventor Ikuo Tanabe             1769-1 Fukasawa-cho, Nagaoka-shi, Niigata

Claims (2)

[Claims] 1. A system for assembling components (bolt fastening) on a table of an NC machine tool such as a machining center during machining, which comprises a bolt fastening shank, a bolt stocker, and an intermediate assembly during machining. And a system, the bolt fastening shank,
A BT shank attached to the spindle of the machine tool,
It is a combination of fastening tools such as an air wrench for fastening bolts.By attaching this bolt fastening shank to the spindle, the machine tool has the function of bolt fastening assembly during processing, and the bolt stocker Is located on the table of the machine tool (within the range of movement of the spindle), the bolts are arranged according to size, stocked, and the bolts of the desired size can be passed to the bolt fastening shank. After finishing the processing of one part, the intermediate assembly system robot feeds and positions another part on the part, and then takes out a bolt of a desired size from the bolt stocker with the bolt fastening shank, The parts are bolted on the table of the machine tool, and the latter part is controlled to be machined. Bolt fastening system for an intermediate assembly of the components in the course working to symptoms. 2. The bolt stocker is provided with a bolt replenishing mechanism which automatically feeds a bolt having a desired size to the bolt fastening shank, and then automatically supplies the bolt to a portion where the bolt is removed to prepare for the next bolt fastening. The fastening system according to claim 1, wherein parts are pre-assembled during processing.