JP2542774Y2 - Curved surface positioning device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning device capable of forming a free-form curved surface of a component having a complicated and large number of cross-sectional shapes such as a frame component of an aircraft.

[0002]

2. Description of the Related Art Heretofore, in a part having a large number of cross-sectional shapes such as a frame part of an aircraft, a position is determined by a pedestal corresponding to a curved shape of a mating part. FIG. 4 shows an example, in which 3 'denotes a part and 10 denotes a cradle. Since the component 3 'has no rigidity, it is necessary to fix the component 3' based on the external shape, and the component 3 'is pressed against the pedestal 10 and positioned. Therefore, a cradle was required for each type of component.

[0003]

In the conventional positioning means as described above, a cradle is required for each type of component, and a large number of cradles must be prepared. For this reason, there is a problem that a great deal of labor and time are required for handling the cradle, and a large storage area is required. Further, when the curved surface of the part changes, there is a problem that the cradle needs to be remanufactured regardless of the size of the change.

[0004] The present invention solves the above-mentioned disadvantages of the prior art, and provides an arbitrary curved surface shape according to a large number of curved surface shapes of a part.
One positioning plate by manual or automatic control mechanism
It is an object of the present invention to provide a positioning device that can be slid and fixed by touch .

[0005]

Means for Solving the Problems In order to achieve the above object, the curved surface generating and positioning apparatus of the present invention has a number of slide rails juxtaposed and fixed on a work table, and the slide rails are arranged on the slide rails according to the curved surface shape of the component. A plurality of slidable plates that determine the position of the curved surface are placed on multiple blocks,
The respective blocks, as well as provided with a sliding mechanism that can move the block along the slide rail, each block
Gear and brake with one-way clutch built in
Ri said plate of each block to be slid and fixed
It is characterized in that fine adjustment means capable of receiving the whole longitudinal direction of the component is provided.

[0006]

In the above-described curved surface generating and positioning apparatus of the present invention, each block on the slide rails juxtaposed on the work table moves on the slide in accordance with the curved surface shape of the component by a manual or automatic control mechanism. is set to Do stationary, then fine few of the boot is slid in each block
Adjusted and fixed, it can be used as a positioning reference for parts. or
Each plate is a one-way capped gear and brake
It is firmly fixed and can cope with a large cutting force.

[0007] By these series of operations, it is possible to cope with various kinds of parts having curved surfaces of different shapes only by changing the position of the block and the plate with only one fixture, as in the prior art. There is no need to replace the entire system each time.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a three-dimensional view of a positioning device of the present invention applied to a fixture for machining a frame part of an aircraft having a curved surface, and FIG. Is a plan view of the block, and FIG. 3 is a side view of the block.

In these figures, reference numeral 3 denotes a part which forms a cross section of an aircraft. One body has several tens to several hundreds of the cross section, and the part 3 is obtained by further dividing the cross section by about 3 to 5. The external shape of the component is constituted by a free curve, and such similar components are tens to hundreds of types in one body.

[0010] A number of slide rails 4 are fixed on the work table in parallel, and a plurality of blocks 2 are mounted on the slide rails 4.

Several blocks 1 are collectively supported in each block 2. Each plate 1 is configured to be slidable back and forth in the block 2, and a gear 6 with a one-way clutch built in the block 2. And the brake 7. Thus, the tip of the plate 1 is used as a reference for positioning the component 3.

The block 2 is configured to be movable on the slide rail 4 along the slide rail 4, and is fixed by engaging a rack 5.

Next, the operation of the device of the present invention will be described. In determining the reference position of the curved surface of the component 3, the block is used to determine the approximate position of each block 2 in advance according to the curved surface shape of the mating component 3. After the block 2 is moved along the slide rail 4, each block 2 is fixed by engaging the rack 5.

Next, the plate 1 is slid back and forth in the block 2 to finely adjust the tip of the plate 1 to a position where it comes into contact with the curved surface of the component 3, and then fixed with the brake 7.

As a result, even in the case of parts having different curvatures, such as the part 3 and the part 3 ', as shown in FIG. Further, when changing the entire position, the entire block 2 may be moved.

[0016]

As described above, according to the present invention, when the curved surface of a part is used as a reference or a support, various types of curved surfaces can be handled only by changing the positions of the blocks and plates. Therefore, there is no need to replace the entire cradle as in the conventional method, and it is possible to easily replace the fixture. Also, there is no need to make a large number of cradle, so that the production cost and the area and labor for storing and managing it are not required.

[Brief description of the drawings]

FIG. 1 is a perspective view of a positioning device according to an embodiment of the present invention;

FIG. 2 is a plan view of a block in the embodiment.

FIG. 3 is a side view of a block in the embodiment.

FIG. 4 is a three-dimensional view showing a conventional positioning method.

[Explanation of symbols]

 1 Plate 2 Block 3 Parts 4 Slide Rail 5 Rack 6 Gear 7 Prake

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshiji Marui 10 Nagoya City Minato-ku Oe-cho Nagoya Aerospace Systems Works (72) Inventor Tomohiko Miyabe 1-2-3 Toranomon, Minato-ku, Tokyo No. Within the Japan Aircraft Development Association (56) References JP-A-58-192728 (JP, A) JP-A-60-121486 (JP, U) JP-B-63-38276 (JP, B2)

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of blocks each having a plurality of slide rails juxtaposed and fixed on a work table, and a plurality of slidable plates for determining the position of the curved surface of the component according to the curved surface shape of the component are arranged on the slide rail. pieces were placed in respective blocks, the can move the block along the slide rail, as well as provided with a sliding mechanism, and incorporated in each block in one direction
By sliding and fixing each plate of each block by a gear with a clutch and a brake , the longitudinal direction of the parts
A curved surface generating and positioning device, comprising fine adjustment means capable of receiving the whole .