JPH08192265A - Device for correcting deviation of work in cladding by welding equipment - Google Patents

Abstract

PURPOSE: To correct a work loaded in an inclined manner on a rotary table in a vertical condition. CONSTITUTION: A lower correcting plate 19 facing toward the lower part of a shaft part 1c of a work 1 on a rotary table 4 is provided on a base column 11 erected on a base plate 2 so as to make the clearance between the lower correcting plate and the shaft part 1c adjustable, and an upper correcting piece 24 facing toward the upper part of the shaft part 1c is provided in an adjustable in the vertical direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, for example, mounts an engine valve on a rotary table of a build-up device and, when overlaying a wear-resistant alloy on a valve face, mounts it on the rotary table with an inclination. The present invention relates to a device for vertically correcting a formed work.

[0002]

2. Description of the Related Art The valve face of an engine valve is repeatedly abutted against the valve seat violently and is easily worn. Therefore, a wear resistant alloy such as stellite is built up on the valve face by gas welding or plasma welding.

FIG. 4 shows a gas-welding type build-up apparatus. As shown in FIG. 5, a portion corresponding to a valve face of an engine valve (hereinafter referred to as a work) (1) to be built up is shown in FIG. The annular groove (1a) is cut.

A rotating plate provided on a horizontal substrate (2) of the overlaying apparatus and rotating intermittently around a vertical axis in the direction of the arrow.
On the (3), a large number of turntables (4) that rotate around the vertical axis in the direction of the arrow are provided at equal intervals on the same circumference, and the work (1 A flat support hole (5) for positioning into which the umbrella table (1b) of (1) can be inserted is formed.

The work (1) is rotated by a supply device (not shown) in the work supply unit (A) when the rotary plate (3) is stopped.
It is placed in the support hole (5) of (4), and is built up in the annular groove (1a) by the stellite rod (6) and the burner (7) in the built-up portion (B) and discharged from the discharge portion (C). It

[0006]

However, in the above-mentioned apparatus, the work (1) is mounted on the rotary table (4) in the work supply section (A).
As shown in FIG. 5, when placing the workpiece, the umbrella table (1
In some cases, the axis b of the work (1) may be tilted because b) is placed laterally offset from the support hole (5) of the turntable (4). In this case, the annular groove (1a) may be melted during the buildup, or the buildup may vary, resulting in defective products.

The present invention has been made in order to solve the above-mentioned problems, and a work piece in a build-up device in which an axis line placed at an inclination can be automatically corrected to be vertical. The purpose is to provide a re-biasing device.

[0008]

According to the present invention, the above-mentioned problems can be brought into contact with an immovable base column, in the direction perpendicular to the lower part of the shaft portion of the work piece mounted on the rotary table of the overlay device. A lower straightening plate is provided so that the distance between the lower straightening plate and the shaft can be adjusted, and an upper straightening tool that can contact the upper part of the shaft of the work in a direction orthogonal to the upper part of the shaft of the workpiece. The problem can be solved by vertically aligning the edge of the lower straightening plate with the edge of the lower straightening plate and adjusting the vertical position.

[0009]

According to the apparatus of the present invention, the edges of the lower straightening plate and the upper straightening tool are adjusted in advance so as to be in close contact with the lower and upper portions of the shaft when the work is normally placed on the rotary table. By doing so, when the shaft part of the work piece tilted on the turntable rotates eccentrically while swinging to the side, both upper and lower edges press the lower part and the upper part of the shaft part to the normal position. By
The work is corrected to a normal posture.

[0010]

1 to 3 show an embodiment of the present invention. Since the overlay apparatus and the work are the same as those described above, the same reference numerals are given to the respective members and the description thereof will be omitted. As shown in phantom lines in FIG. 4, on the side of the rotary table (4) between the work supply section (A) and the overlay section (B) on the substrate (2) of the overlay apparatus, The device (D) of the present invention is installed.

A support tool (12) is fixedly installed on an upper portion of a base pillar (11) standing on the substrate (2), and the rotary table (4) is horizontally formed by drilling the support tool (12). The through hole (13) facing the sliding rod (1
4) is inserted. The sliding rod (14) is prevented from rotating by a sliding key (15) and a key groove (not shown).

Two adjusting nuts (1) are attached to the threaded portion (16) which is coaxial with the outer end (left end in FIGS. 1 and 3) of the sliding rod (14).
7) is screwed together, and the flange (18) also connected to the inner end is
A horizontal fan-shaped lower straightening plate (19) oriented toward the lower portion of the shaft portion (1c) of the work (1) on the rotary table (4) is fixed. An arcuate lower straightening edge (20) is formed at the free end (the right end in FIG. 3) of the lower straightening plate (19).

Support tool (12) and flange in sliding rod (14)
A compression coil spring (21) is wound between the work (1) and the lower straightening plate (19) by two adjusting nuts (17).
The distance from the axis of can be finely adjusted.

In the center of the lower straightening plate (19), there is a column (2) whose vertical upper end is located slightly above the upper end of the work (1).
2) is erected, and a keyway (23) is cut on the side surface of the column (22).

On one side surface (upper side surface in FIG. 2) of the upper portion of the support column (22), an upper straightening tool (24) facing the shaft portion (1c) of the work (1),
The semicircular groove (26) cut in the center of the inner surface of the support plate (25) and oriented in the vertical direction is fitted without looseness, and the sliding key (27) provided in the semicircular groove (26) is 23) is fitted. At the inner end of the support plate (25), there is an upper straightening rod (28) which is oriented in the same direction as the lower straightening edge (20) and whose center is located on a vertical line passing through the center of the lower straightening edge (20). When fixed, the upper corrector (24) has a T-shape in plan view.

On the inner surface of the support plate (25) (lower surface of FIG. 2),
A holding plate (29) of approximately the same shape and size overlaps with each other, and a semicircular groove (30) cut in the center of the inner side surface (upper side surface of FIG. 2) facing vertically is provided on the upper part of the column (22). Fits without slack, support plate (25)
Both ends of the holding plate (29) are screwed to a hexagonal bolt (31) and a T-shaped bolt (32). The upper braces (24) are
By the operation of the T-shaped bolt (32), the upper and lower positions can be adjusted and fixed non-rotatably in 2).

In the above-mentioned device of the present invention, the work (1) is placed in the normal position in the support hole (5) of the rotary table (4) in advance, and the shaft portion thereof is provided.
Operate the adjusting nut (17) so that the center of the lower straightening edge (20) and the center of the upper straightening rod (28) are in close contact with the lower and upper portions of (1c), respectively. While adjusting the horizontal position of the plate (19), the T-shaped bolt (32) is operated to adjust the vertical position of the upper corrector (24).

After that, when the build-up of the work (1) is started, the work (1) tilted on the rotary table (4) in the work supply section (A) is moved to the lower correction edge. By the action of (20) and the upper correction edge (28), the umbrella surface (1b) is fitted into the support hole (5) and corrected to a normal posture, and is normally built up at the built-up portion (B).

When the size of the work (1) to be built up is changed, the horizontal position of the lower straightening plate (19) and the upper straightening tool
Readjust the vertical position of (24).

[0020]

According to the apparatus of the present invention, even if the work is placed on the rotary table of the overlaying machine while being inclined from the support hole, the lower straightening plate and the upper straightening tool are inclined. Since the shaft part of is pressed vertically, the lower end of the work is automatically inserted into the support hole of the rotary table and corrected to a normal posture.
Defective products do not occur during padding, improving the yield.

[Brief description of drawings]

FIG. 1 is a side view of a partly cutaway central longitudinal section showing an embodiment of the present invention.

FIG. 2 is a cross-sectional plan view of a main part taken along line XX of FIG.

FIG. 3 is a cross-sectional plan view of the main part, which is also taken along the line YY of FIG.

FIG. 4 is a plan view of a main part of the overlay device.

FIG. 5 is a front view of a workpiece placed on a rotating table while being inclined.

[Explanation of symbols]

 (A) Work supply part (B) Overlay part (C) Discharge part (1) Work (1a) Annular groove (1b) Umbrella table (1c) Shaft part (2) Substrate (3) Rotating plate (4) Rotating table (5) Support hole (6) Stellite rod (7) Burner (11) Board (12) Support tool (13) Through hole (14) Sliding rod (15) Key (16) Screw part (17) Adjustment nut (18) ) Flange (19) Lower straightening plate (20) Lower straightening edge (21) Compression coil spring (22) Strut (23) Keyway (24) Upper straightening tool (25) Support plate (26) Semicircular groove (27) Key (28) Upper straightening rod (29) Support rod (30) Semicircular groove (31) Hexagon bolt (32) T-shaped bolt

Claims (1)

[Claims] 1. A lower straightening plate capable of contacting a lower part of a shaft portion of a workpiece mounted on a rotary table of a surfacing device in a direction perpendicular to the stationary base column and adjusting a distance between the lower straightening plate and the shaft portion. The upper straightening tool, which is provided so as to be capable of coming into contact with the column standing upright on the lower straightening plate in the direction orthogonal to the upper part of the shaft of the workpiece, is provided with its edge and the edge of the lower straightening plate. Is vertically aligned and is provided so that the vertical position can be adjusted.