JPH0618501U - Cast steel diaphragm used for steel blocks and steel columns - Google Patents

Abstract

(57) [Summary] [Purpose] When manufacturing steel blocks, automatic welding is made possible, thereby reducing the burden on workers and improving productivity. In addition, assembling steel blocks and steel columns. Speed up. [Structure] A welding back frame 3 is formed on an upper surface of a substrate 2, a projection 4 is formed on a lower surface thereof, a cast steel male diaphragm 1 integrally cast at right angles to the substrate 2 and on the same axis, and the projection is formed at the center. Four
On the lower surface of the base plate 2'provided with the receiving hole 6 of FIG. 1, a welding steel back frame 3'is integrally formed at right angles to the base plate 2'and on the same axial center, and is integrally formed with a cast steel female diaphragm 5. The cast steel male diaphragm 1 or the cast steel female diaphragm 5 is welded to the open ends of the connecting cylinder 10 and the steel columns 7 and 8 in the steel block 9 to form a substrate of the cast steel male diaphragm 1. The projection 4 provided on the base plate 2 is fitted into the receiving hole 6 provided on the base plate 2'of the cast steel female diaphragm 5, and the base plates 2 and 2'of the two cast steel diaphragms 1 and 5 that are overlapped with each other are welded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cast steel diaphragm used for steel blocks and steel columns.

[0002]

[Prior art]

 The steel block used for connecting the steel column and the steel beam, that is, the joint called by a trader, is a square tube-shaped connecting tube with diaphragms on both upper and lower surfaces, and H-shaped steel is welded to the outer surface. At the factory, it is welded to one end of a steel column and used at the construction site.However, since this steel block has many welding points and is a heavy object, the welding work requires considerable time and labor. And need.

On the other hand, when the diaphragms are welded to the upper and lower surfaces of a square connection tube that has been cut to a predetermined length in a state of being orthogonal to the axis of the connection tube, first, the inner peripheral surface of the end portion of the connection tube is first formed. After welding the back plate for welding so that the end surface of the back plate is orthogonal to the axis of the connecting tube and protrudes slightly from both upper and lower surfaces of the connecting tube, the diaphragm is brought into contact with the end surface of the backing plate. The method of joining by welding is adopted.

[0004]

[Problems to be solved by the device]

 When attempting to automatically weld the diaphragms temporarily fixed to the upper and lower surfaces of the connecting cylinder in the steel block, or to perform the automatic temporary fixing welding and automatic main welding of the H-section steel on the outer surface of the connecting cylinder, It is necessary to rotatably support the shaft center of the diaphragm that matches the shaft center of the connecting cylinder, and to rotate the workpiece one by one at a predetermined angle so that welding is performed automatically each time. In order to perform the above, it is necessary that the axes of both the connecting cylinder and the diaphragm be completely aligned, and that the axes be rotatably supported.

However, according to the above-mentioned conventional method of joining the connecting cylinder and the diaphragm, it was difficult to weld the connecting cylinder and the diaphragm so that the axes of both are coincident with each other. It could not be manufactured by welding.

The present invention solves the above-mentioned conventional problems and enables automatic welding when manufacturing a steel block, which significantly reduces the burden on the operator and significantly improves productivity. In addition, it aims to speed up the assembly of steel blocks and steel columns.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the cast steel diaphragm according to the present invention is formed by integrally casting a back frame 3 for welding on an upper surface of a substrate 2 and a projecting frame 4 on a lower surface thereof at right angles to the substrate 2 and on the same axis. The cast steel male diaphragm 1 and the welding back frame 3'on the lower surface of the base plate 2'in which the receiving hole 6 of the projecting frame 4 is provided at the center are formed integrally with the substrate 2'at right angles and on the same axis. And a cast-type female diaphragm 5 made of cast steel.

[0008]

[Action]

 After cutting the outer periphery of the upper and lower end portions of the connecting cylinder 10 shown in FIG. 5 cut into a predetermined length, a groove is formed on one end (lower end) of the connecting cylinder 10 and the male steel diaphragm 1 made of cast steel is welded to the opening. The back frame 3 for welding, the back frame 3 ′ for welding the female diaphragm 5 made of cast steel into the opening at the other end (upper end), respectively, and the diaphragms made of both cast steel 1 with respect to the axis of the connecting cylinder 10; If the two cast steel diaphragms 1 and 5 are temporarily welded to the connecting cylinder 10 in a state where the two substrates 2 and 2'are orthogonal to each other and the distance between the two substrates 2 and 2'is adjusted to a predetermined distance. The axes of both the temporarily welded diaphragms 1 and 5 made of cast steel and the connecting cylinder 10 necessarily coincide with each other. Therefore, the two cast steel diaphragms 1 and 5 temporarily fixed to the upper and lower surfaces of the connecting tube 10 can be main welded by the automatic welding machine. Further, it becomes possible to perform automatic temporary fixing welding and automatic main welding of the H-shaped steel 11 on the outer surface of the connecting tube 10, whereby the steel material block 9 is easily manufactured.

Further, for example, as shown in FIG. 5, the welding back frame 3 ′ of the cast steel female die diaphragm 5 is fitted into the upper end opening of the steel column 7 for the first floor, and the axial center of the steel column 7 is fitted. On the other hand, after the cast steel female diaphragm 5 is welded to the steel pillar 7 in a state where the substrate 2'is adjusted so as to be orthogonal to each other, the steel block 9 is provided in the receiving hole 6 of the cast steel female diaphragm 5. By assembling the projecting frame 4 of the cast steel male diaphragm 1 and welding the substrates 2 and 2'of the two cast steel diaphragms 1 and 5 that overlap each other, the steel block 9 and the first floor steel pillar 7 are assembled. Is completed.

Similarly, for example, the welding back frame 3 of the cast steel male diaphragm 1 is fitted into the lower end opening of the second floor steel material column 8 and the substrate 2 is orthogonal to the axis of the steel material column 8. After the male steel diaphragm 1 made of cast steel is welded to the steel column 8 in such a state as to be adjusted, the projecting frame 4 of the male diaphragm 1 made of cast steel is replaced with the female diaphragm 5 made of cast steel in the steel block 9. When the substrates 2, 2'of the two cast steel diaphragms 1, 5 fitted in the receiving hole 6 and overlapping each other are welded, the assembly of the steel block 9 and the second floor steel column 8 is completed.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a cast steel male diaphragm, and an opening of a square tubular connection tube 10 or a square tubular steel pillar 8 in a steel material block (portion) 9 described later on the upper surface of a rectangular substrate 2. A rectangular tubular welding back frame 3 to be fitted to an end portion and a rectangular tubular projecting frame 4 on the lower surface are integrally cast at right angles to the rectangular substrate 2 and on the same axis. Reference numeral 5 denotes a cast steel female type diaphragm, and a steel block 9 to be described later is provided on the lower surface of the rectangular substrate 2'where the receiving hole 6 for the rectangular cylindrical projecting frame 4 of the cast steel male diaphragm 1 is provided at the center. The square tubular connecting tube 10 or the square tubular welding back frame 3'to be fitted into the open end of the square tubular steel column 7 is integrally cast at right angles to the rectangular substrate 2'and on the same axis. It was done.

Reference numeral 7 shown in FIG. 5 is, for example, a square tubular steel material column for the first floor. The welding back frame 3 ′ of the cast steel female diaphragm 5 is fitted into the upper end opening of the steel material column. The cast steel female diaphragm 5 is welded to the steel column 7 in a state where the substrate 2'is adjusted so as to be orthogonal to the axis of 7. Reference numeral 8 denotes, for example, a square tubular steel pillar for the second floor. The welding back frame 3 of the cast steel male diaphragm 1 is fitted into the lower end opening of the pillar, and the base plate 2 is attached to the axis of the steel pillar 8. The cast steel male diaphragm 1 is welded to the steel column 8 in a state of being adjusted so as to be orthogonal to each other. Reference numeral 9 is a steel block (joint) used for connecting the steel columns 7 and 8 to a steel beam not shown in the drawing, and is formed on the outer periphery of the upper and lower ends of the square tubular connecting tube 10 cut into a predetermined length. After the groove processing, the welding back frame 3 of the cast steel male diaphragm 1 is provided at one end (lower end) opening of the connecting cylinder 10 and the cast steel female diaphragm 5 is provided at the other end (upper end) opening. The back frames 3'for welding are fitted respectively, and the substrates 2, 2'of the two cast steel diaphragms 1, 5 are orthogonal to the axis of the connecting tube 10 and the distance between the substrates 2, 2'is set. The two cast steel diaphragms 1 and 5 are welded to the connecting cylinder 10 in a state where the distance is adjusted to a predetermined interval, and the H-shaped steel 11 is welded to the outer surface of the connecting cylinder 10.

[0014]

[Effect of device]

 By using the cast steel diaphragm according to the present invention, it is possible to easily and surely align the axes of both the connecting cylinder in the steel block and the cast steel diaphragms provided at both ends of the connecting cylinder. It is possible to perform main welding of both cast steel diaphragms temporarily fixed on both sides with an automatic welding machine, and also to temporarily fix and main weld H-shaped steel to the outer surface of the connecting cylinder, which enables automatic welding when manufacturing steel blocks. As a result, the burden on workers is greatly reduced and productivity is significantly improved.

Further, the assembling of the steel material column and the steel material block is performed by fitting the projecting frame provided on the substrate and the receiving hole, and in this case, the shafts of both the steel material column and the connecting cylinder of the steel material block. The cores inevitably coincide with each other, and unlike the conventional case, the positioning work for aligning the shaft centers can be omitted, so that the assembling can be performed quickly.

In addition, the cast steel male diaphragm is provided with a projecting frame on the lower surface of the substrate, and the cast steel female diaphragm is provided with a receiving hole at the center of the substrate. As a result, when the substrate is welded to the connecting tube or steel column, the distortion and warpage that occurs in the substrate due to the welding heat is significantly reduced compared to the conventional method, and it is possible to manufacture steel blocks with high accuracy. As a result, the assembly of the steel pillar and the steel block can be performed more easily and quickly, which is extremely effective.

In addition, when the cast steel diaphragm according to the present invention is mass-produced by casting and provided to a final assembly company for a steel block or the like, the open end of the connecting cylinder or the open end of the steel column in the conventional steel block is used. Since the welding work of the back plate for welding, which was performed before welding the diaphragm to the above, can be omitted, the burden on the operator is further reduced in this respect as well, and the productivity is improved.

[Submission date] April 22, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content] [Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cast steel diaphragm used for steel blocks and steel columns.

[0002]

[Prior art]

 The steel block used for connecting the steel columns and the steel beams, that is, the joint called by a trader, is a square tube-shaped connecting tube with diaphragms on the upper and lower sides, and H-shaped steel is welded to the outer surface of the connecting tube. The steel block is welded to one end of the steel column and used at a construction site.However, since this steel block has many welding points and is heavy, it requires considerable time and labor for welding work. In need of .

On the other hand, when the diaphragms are welded to the upper and lower surfaces of a square connection tube that has been cut into a predetermined length in a state of being orthogonal to the axis of the connection tube, the inner peripheral surface of the end of the connection tube is first. After welding the back plate for welding so that the end surface of the back plate is orthogonal to the axis of the connecting tube and protrudes slightly from the upper and lower surfaces of the connecting tube, the end face of the backing plate is in contact with the diaphragm. The method of joining by welding is adopted.

[0004]

[Problems to be solved by the device]

 When attempting to automatically weld the diaphragms temporarily fixed to the upper and lower surfaces of the connecting cylinder in the above steel block, and to perform the automatic temporary fixing welding and the automatic main welding of H-section steel on the outer surface of the connecting cylinder, the connection is made. It is necessary to rotatably support the shaft center of the diaphragm that matches the shaft center of the cylinder so that the work piece is sequentially rotated by a predetermined angle so that welding is performed automatically each time. In order to perform welding, it is necessary that the axes of both the connecting cylinder and the diaphragm be completely aligned and that the axes be rotatably supported.

However, according to the above-described conventional method of joining the connecting cylinder and the diaphragm, it was difficult to weld the connecting cylinder and the diaphragm so that the axes of the connecting cylinder and the diaphragm coincide with each other. It could not be manufactured by welding.

The present invention solves the above-mentioned conventional problems and enables automatic welding when manufacturing a steel block, which significantly reduces the burden on the operator and significantly improves the productivity. It aims to speed up the assembly of steel blocks and steel columns.

[0007]

Means for Solving the Problems In order to achieve the above object, a cast steel diaphragm according to the present invention has a welding back frame 3 on the upper surface of a substrate 2 and a protrusion 4 on the lower surface, which are perpendicular to the substrate 2 and are the same. A cast steel male diaphragm 1 integrally cast on an axis and a welding back frame 3'on the lower surface of a base plate 2'provided with a receiving hole 6 for the protrusion 4 at the center and at a right angle to the base plate 2 '. It is composed of a cast steel female diaphragm 5 integrally cast on the same axis.

[0008]

[Action]

 After cutting the outer periphery of the upper and lower ends of the connecting cylinder 10 shown in FIG. 5 cut into a predetermined length, a groove is formed on one end (lower end) of the connecting cylinder 10 and the male steel diaphragm 1 made of cast steel is welded to the opening. The back frame 3 for welding and the back frame 3'for welding the female diaphragm 5 made of cast steel are fitted in the openings of the other end (upper end), respectively, and the diaphragms 1 made of both cast steel are attached to the axial center of the connecting cylinder 10. The two cast steel diaphragms 1 and 5 are temporarily welded to the connecting cylinder 10 in a state where the two substrates 2 and 2'are orthogonal to each other and the distance between the two substrates 2 and 2'is adjusted to a predetermined distance. For example, the axial centers of both the temporarily cast welded diaphragms 1 and 5 made of cast steel and the connecting tube 10 are necessarily aligned. Therefore, the two cast steel diaphragms 1 and 5 temporarily fixed to the upper and lower surfaces of the connecting tube 10 can be main welded by the automatic welding machine. Further, the H-shaped steel 11 can also be automatically temporarily fixedly welded and automatically main welded to the outer surface of the connecting cylinder 10, whereby the steel block 9 can be easily manufactured.

Further, for example, as shown in FIG. 5, the welding back frame 3 ′ of the cast steel female diaphragm 5 is fitted into the upper end opening of the first-floor steel material column 7 and is attached to the axial center of the steel material column 7. After the female diaphragm 5 made of cast steel is welded to the steel pillar 7 in a state where the substrate 2'is adjusted so as to be orthogonal to each other, the steel block 9 is provided in the receiving hole 6 of the female diaphragm 5 made of cast steel. If the projections 4 of the cast steel male diaphragm 1 are fitted and the substrates 2 and 2'of the two cast steel diaphragms 1 and 5 that are overlapped with each other are welded together, the roughening of the steel block 9 and the first-floor steel pillar 7 is achieved. Complete.

Similarly, for example, the back frame 3 for welding of the cast steel male diaphragm 1 is fitted into the lower end opening of the steel column 8 for the second floor, and the substrate 2 is attached to the axial center of the steel column 8. After welding the cast steel male diaphragm 1 to the steel column 8 in a state of being adjusted to be orthogonal to each other, the projection 4 of the cast steel male diaphragm 1 is received in the cast steel female diaphragm 5 in the steel block 9. When the substrates 2, 2'of the two cast-steel diaphragms 1, 5 fitted in 6 and overlapped with each other are welded, the assembly of the steel block 9 and the second-stage steel column 8 is completed.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In the drawing, reference numeral 1 denotes a cast steel male diaphragm, which is an open end of a square tubular connection cylinder 10 or a square tubular steel pillar 8 in a steel block (joint) 9 described later on the upper surface of a rectangular substrate 2. The rectangular tubular welding back frame 3 to be fitted to the parts and the rectangular tubular projections 4 on the lower surface are integrally cast at right angles to the rectangular substrate 2 and on the same axis. The projection 4 may be formed in a prismatic shape in addition to the prismatic shape shown in the drawings . Reference numeral 5 denotes a cast steel female diaphragm, which is a steel block 9 to be described later on the lower surface of the rectangular substrate 2'where the receiving hole 6 for the square tubular protrusion 4 of the cast steel male diaphragm 1 is provided at the center. Square tubular welding back frame 3'to be fitted to the open end of the square tubular connecting tube 10 or square tubular steel column 7 is cast integrally with the rectangular substrate 2'in a square shape and on the same axis. It was done.

Reference numeral 7 shown in FIG. 5 is, for example, a square tubular steel material column for the first floor. The welding back frame 3 ′ of the cast steel female diaphragm 5 is fitted into the upper end opening of the steel material column and The cast steel female diaphragm 5 is welded to the steel column 7 in a state where the substrate 2'is adjusted to be orthogonal to the axis of the column 7. 8 is, for example, a square tubular steel material column for the second floor, the welding back frame 3 of the cast steel male diaphragm 1 is fitted into the lower end opening of the steel material column 8 and the substrate 2 is attached to the axis of the steel material column 8. The cast steel male diaphragm 1 is welded to the steel column 8 in a state of being adjusted so as to be orthogonal to each other. Reference numeral 9 is a steel material block (a joint) used at a connecting portion between the steel material columns 7 and 8 and a steel material beam not shown in the drawing, and the outer circumferences of the upper and lower end portions of the rectangular tubular connection tube 10 cut into a predetermined length. After the groove processing is applied to the connection cylinder 10, the welding back frame 3 of the cast steel male diaphragm 1 is provided at one end (lower end) opening of the connection cylinder 10 and the cast steel female diaphragm 5 is provided at the other end (upper end) opening. The back frames 3'for welding are fitted respectively, and the substrates 2, 2'of the two cast steel diaphragms 1, 5 are orthogonal to the axis of the connecting cylinder 10 and the two substrates 2, 2'are joined together. Both cast steel diaphragms 1 and 5 are welded to a connecting cylinder 10 in a state where the intervals are adjusted to be a predetermined interval, and an H-shaped steel 11 is welded to the outer side surface of the connecting cylinder 10.

[0014]

[Effect of device]

 By using the cast steel diaphragm according to the present invention, it is possible to easily and surely match the axes of both the connecting cylinder in the steel block and the cast steel diaphragms provided at both ends of the connecting cylinder. Both cast steel diaphragms that are temporarily fixed to the upper and lower surfaces can be main welded by an automatic welding machine, and H-shaped steel can be temporarily fixed and main welded to the outer surface of the connecting cylinder. This makes it possible to manufacture steel block. Since automatic welding is realized, the burden on workers is greatly reduced, and productivity is significantly improved.

Further, the assembling of the steel material column and the steel material block is carried out by fitting the projection provided on the substrate and the receiving hole, and in this case, the axial centers of both the steel material column and the connecting cylinder of the steel material block. Inevitably coincide with each other, and unlike the conventional case, the positioning work for aligning the shaft centers can be omitted, so that the assembly can be performed quickly.

In addition, the connection is made by forming a projection on the lower surface of the substrate in the cast steel male diaphragm and by forming a receiving hole in the center of the substrate in the cast steel female diaphragm. When a substrate is welded to a cylinder or steel column, the distortion and warpage that occurs in the substrate due to the welding heat is greatly reduced compared to the conventional method, so it is possible to manufacture steel blocks with high accuracy and at the same time Even when assembled with a steel block, it has an extremely large effect, such as being easier and quicker.

In addition, when the cast steel diaphragm according to the present invention is mass-produced by casting and provided to a final assembler of a steel block, etc., the open end of the connecting cylinder or the open end of the steel column in the conventional steel block is used. Since the welding work of the back plate for welding, which has been performed before welding the diaphragm to the part, can be omitted, the burden on the worker can be further reduced in this respect as well, and the productivity can be improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a cast steel male diaphragm.

FIG. 2 is a plan view of the above.

FIG. 3 is a vertical sectional front view of a cast steel female diaphragm.

FIG. 4 is a plan view of the above.

FIG. 5 is a cross-sectional view showing an example of a use state of the cast steel diaphragm according to the present invention.

[Explanation of symbols]

 1 Cast Steel Male Diaphragm 2, 2'Substrate 3, 3'Welding Back Frame 4 Projection Frame 5 Cast Steel Female Diaphragm 6 Receiving Hole

[Procedure amendment]

[Submission date] April 22, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of device] Cast steel diaphragm used for steel block and steel column

[Scope of utility model registration request]

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a cast steel male diaphragm.

FIG. 2 is a plan view of the above.

FIG. 3 is a vertical sectional front view of a cast steel female diaphragm.

FIG. 4 is a plan view of the above.

FIG. 5 is a cross-sectional view showing an example of a use state of the cast steel diaphragm according to the present invention.

[Explanation of Codes] 1 cast steel male diaphragm 2, 2'substrate 3, 3'welding back frame 4 projections 5 cast steel female diaphragm 6 receiving hole

Claims (1)

[Scope of utility model registration request] 1. A cast steel male diaphragm integrally cast on the upper surface of a substrate, a back frame for welding, and a projecting frame on the lower surface at right angles to the substrate and on the same axis, and the projecting frame at the center. A cast steel diaphragm for use in a steel material block and a steel pillar, comprising a cast steel female diaphragm in which a back frame for welding is integrally cast on the lower surface of a board having a receiving hole at a right angle to the board and on the same axis.