JPH059778U - Fixing jig for welding work - Google Patents

Abstract

(57) [Summary] [Structure] A fixing jig 11 for fixing a welding work 1 having an end plate 2, and four supporting members 13 for mounting the end plate on the surface of a mounting plate 12 are provided. With this support member
A first screw shaft body 15 is rotatably arranged in a guide groove 14 formed in each of the guide grooves 14, and each of these screw shaft bodies 15 is provided with a claw portion 16a which is engageable with and disengageable from the edge portion 2a of the end plate 2 at the tip. A welding member provided with a jack member 18 for pressing the edge of the end plate against the claw portion 16a of the holding metal fitting 16 by screwing the holding metal fitting 16 having it and pressing the end plate to the central portion of the mounting plate 12. It is a fixture for the work. [Effect] By pressing the central portion of the end plate with the jack member, the edge of the end plate is pressed against the claw portion of the metal fitting from one side to be fixed, so the end plate swells due to welding heat during welding. In such a case, too much force is not exerted on the holding metal fitting itself, so that the life of the holding metal fitting itself can be extended.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a jig for fixing a welding work.

[0002]

[Prior Art]

 Generally, for example, when welding an end plate (also referred to as a diaphragm) to an end of a column (also called a column), a temporary assembly member (hereinafter, referred to as a work) obtained by temporarily welding the end plate to the end of the column is used. The main welding was performed while being fixed by the fixing jig.

Conventionally, as shown in FIGS. 6 and 7, a fixing jig used for this main welding has a square mounting plate 51 and a diagonally arranged, that is, radial, arrangement of the mounting plate 51. Four support members 52 for mounting and supporting the work 71, and screws arranged in guide grooves 53 formed in the respective support members 52 along the radiation direction and rotatably supported by the support portion 52a. The shaft 54 is composed of a shaft 54 and a fixing metal fitting 55 which is screwed into the screw shaft 54 and is guided by the guide groove 53 of the support member 52.

The fixing metal fitting 55 is attached to the metal fitting body 61 that is screwed into the screw shaft body 54, and is attached to the metal fitting body 61 with a mounting bolt 62, and the end plate 72 of the work 71 is attached to the tip end portion thereof. The holding member 63 provided with a claw portion 63a for holding the claw portion 63a is inserted between the claw portion 63a of the holding tool 63 and the metal fitting body 61, and the distance between the claw portion 63a and the metal fitting body 61 is set to the end plate. The adjusting plate 64 for adjusting the thickness to 72 is equal.

Therefore, when fixing the work 71 to the fixing jig, the metal fitting body 61 and the holder 63 are arranged so that the distance between the holding claw 63 a and the metal fitting body 61 becomes equal to the thickness of the end plate 72 of the work 71. After the adjusting plate 64 was inserted between the holder and the holder 63, the holder 63 was attached to the metal fitting body 61 by the attachment bolt 62.

After that, after the work 71 is placed and supported on the surface of the support member 52, each screw shaft body 54 is rotated to move the fixing fittings 55 on four sides to move the edge portion of the end plate 72. The holding claw 63a and the metal fitting body 61 are inserted so that they are sandwiched.

[0007]

[Problems to be solved by the device]

 However, according to the above-mentioned conventional fixing metal fitting, the adjusting plate 64 to be inserted between the holder 63 and the metal fitting body 61 must be changed every time when the thickness of the end plate of the work is changed, which is very troublesome. In addition, since the edge of the end plate is firmly fixed, the end plate warps during the main welding, and due to this warping, a large force acts on the retainer 63 itself to fix it. There was also a topic that the life of the metal fitting 55 would be shortened.

Therefore, an object of the present invention is to provide a fixture for a welding work that can solve the above problems.

[0009]

[Means for Solving the Problems]

 In order to solve the above problem, the welding work fixing jig of the present invention is a fixing jig for fixing a welding work having an end plate, and the end plate is placed on the surface of the mounting plate. In addition to providing a plurality of support members, a plurality of screw shafts are rotatably arranged in the radial direction, and each of these screw shafts is provided with a presser having a claw part that is engageable with and disengageable with the edge of the end plate at the tip. A jack member for screwing the metal fitting and pressing the end plate at the central portion of the mounting plate to press the edge portion of the end plate against the claw portion of the metal fitting is provided.

[0010]

[Action]

 According to the above configuration, when the welding work is fixed, the central portion of the end plate is pressed by the jack member so that the edge portion of the end plate is pressed against the claw portion of the holding fixture from one side to fix the workpiece. Therefore, unlike the conventional case where the edge of the end plate is firmly sandwiched from both sides, even if the end plate swells due to the welding heat during the main welding, an unreasonable force does not act on the pressing fitting itself.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the fixing jig 11 according to the present embodiment fixes and holds the end plate 2 of a temporary assembly member (hereinafter referred to as a work) 3 in which the end plate 2 is temporarily welded to the end of the column 1. Then, it is for performing the main welding.

As shown in FIGS. 1 and 2, the fixing jig 11 has a square mounting plate 12, and is arranged diagonally to the mounting plate 12, that is, radially to support and mount the work 3 4 The individual support members 13, the first screw shaft body 15 arranged in the guide groove 14 formed in each support member 13 along the radial direction and rotatably supported by the support portion 13a, and the lower portion A metal fitting 16 having a claw portion 16a which is engaged with the threaded portion 15a of the first screw shaft body 15 and is guided by the guide groove 14 and which is detachably engaged with the edge portion 2a of the end plate 2 at the upper portion thereof. The first rotation handle 17 attached to the end of the first screw shaft body 15 and the end plate 2 arranged in the center of the attachment plate 12 and pressed against the claw portion 16a of the holding metal fitting 16. Edge 2 of the end plate 2 engaged with the and a jack member 18 for pressing a against the claw portion 16a.

Further, as shown in FIGS. 1 to 3, the jack member 18 includes a support plate 22 arranged via a mounting bolt 21 in a recess 12a provided in a central portion of the mounting plate 12 side, Left and right guide plates 23 provided upright on the surface of the support plate 22, and fixedly arranged between the guide plates 23 and on the front surface side of the support plate 22 and inclined surfaces on both sides so that the central portion projects. The movable member 24 is formed between the fixed member 24 formed with 24a and the guide plates 23, and is also movably arranged on the end plate 2 side, and the inclined surfaces 25a are formed on both sides so that the central portion projects. The member 25, the pair of wedge members 27 arranged in the wedge-shaped recesses 26 formed on both sides of the fixed member 24 and the movable member 25, and the two wedge members 27 are threadedly inserted and rotated. By both wedges A second screw shaft body 28 that allows the members 27 to move toward and away from each other, a rotating shaft body 29 that rotates the second screw shaft body 28, and a second rotation handle 30 are included. The threaded portions 28a of the second screw shaft body 28 that are screwed into the wedge members 27 on both sides are threaded portions in mutually opposite directions.

Therefore, when the two wedge members 27 are moved toward and away from each other by rotating the second screw shaft body 28 via the rotary shaft body 29, the movable member 25 moves toward and away from the end plate 2 side. Will move.

Further, a circular hole 12b is formed in the central portion on the side of the mounting plate 12, and a cylindrical shape that supports the support plate 22 of the jack member 18 is formed in the hole 12b. A cushion member (for example, one made of urethane rubber) 31 is inserted.

Next, the operation of fixing the work 3 will be described. First, the first rotating handle 17 is rotated to move the pair of pressing fittings 16 adjacent to each other to predetermined predetermined positions, and then insert the end plate 2 of the work 3 into the claw portions 16a of the pair of pressing fittings 16. Then, the work 3 is placed and supported on the surface of each support member 13.

Next, similarly, the first rotation handle 17 is rotated to move the remaining pair of pressing fittings 16 to engage with the other edge portion 2 a of the end plate 2. Next, the second rotating handle 30 is rotated to cause the movable member 25 of the jack member 18 to project toward the end plate 2 side, so that the end plate 2 is attached to the claw portion 16a as shown in FIGS. Press down. Of course, at this time, a pressure is applied to the end plate 2 by the cushion member 31, so that the end plate 2 is firmly fixed.

As described above, since the central portion of the end plate 2 is pressed and the edge portion 2a of the end plate 2 is pressed against the claw portion 16a from one side to be fixed, the end plate 2 is fixed as in the conventional case. Unlike the case where the edge portion 2 of 2 is firmly sandwiched from both sides, even if the end plate 2 swells due to the welding heat during the main welding, an unreasonable force does not act on the pressing fitting 16 itself.

Further, since the jack member 18 is also supported by the cushion member 31, when the end plate 2 swells due to welding heat, the swelling is smoothly absorbed, so that the end plate 2 itself is also protected. Become.

[0020]

[Effect of the device]

 As described above, according to the configuration of the present invention, when fixing the workpiece for welding, by pressing the central portion of the end plate with the jack member, the edge portion of the end plate is pressed against the claw portion of the pressing metal from one side to be fixed. Therefore, unlike the conventional case where the edge of the end plate is firmly sandwiched from both sides, even if the end plate swells due to the welding heat during the main welding, it is impossible to force the press fitting itself. Does not work, thus extending the life of the presser foot itself.

Further, unlike the conventional case, since the adjusting plate is not used, the work of fixing the work can be performed very easily.

[Brief description of drawings]

FIG. 1 is a sectional view of a jig for fixing a welding work according to an embodiment of the present invention.

FIG. 2 is a plan view of a fixing jig for a welding work according to the embodiment.

FIG. 3 is a cross-sectional view of a jack member of a fixing jig in the example.

FIG. 4 is a plan view of a holding metal fitting of a fixing jig in the embodiment.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a partially cutaway side view of a conventional fixing jig.

FIG. 7 is a plan view of a main part of a conventional fixing jig.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 pillar 2 end plate 3 work 11 fixing jig 12 mounting plate 13 support member 15 first screw shaft body 16 pressing metal fitting 16a claw portion 18 jack member 22 support plate 23 guide plate 24 fixing member 25 movable member 26 wedge-shaped recess 27 Wedge member 28 Second screw shaft body 31 Cushion member

Claims (1)

[Claims for utility model registration] 1. A fixing jig for fixing a welding work having an end plate, wherein a plurality of supporting members for mounting the end plate are provided on the surface of the mounting plate. , A plurality of screw shafts are rotatably arranged in the radial direction, and a pressing metal fitting having a claw that can be engaged with and disengaged from the edge of the end plate is screwed onto each of these screw shafts, and the above mounting is performed. A jig for fixing a welding work, comprising a jack member for pressing the edge of the end plate against the claw portion of the metal fitting by pressing the end plate in the center of the plate.