JPS61132298A - Positioner for working steel joint member - Google Patents

Abstract

PURPOSE:To omit the troubles and time in moving upto a working position and to shorten a work time widely by providing the work device to rotate to the right and left and obliquely up and down a work member on the center part of the lift which is on a travelling truck. CONSTITUTION:When the motor 20 which is on the backing stand in the work device 16 for rotating to the right and left with the condition of fitting a work member 2 on the lower face of a table 15 is rotated, the revolution is transmitted to a speed reducing gear 19 via a worm gear 25 and the work member 2 is rotated 360 deg. centering around the longitudinal shaft. And when the right and left hydraulic cylinders 26 consisting of the work device 17 for inclining up and down are operated via a hydraulic unit 30 so as to make respective piston rod 28 motion alternately, a lateral shaft 21 is rotated by the rotation of the right and left crank arm 29 and the work member 2 is inclined centering around the lateral shaft 21 with the work device 16 for the right and left rotation.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a processing positioner for holding the joint members in a position that facilitates welding when performing finish welding on temporarily assembled steel joint members. It is related to improvement.

(Prior art) When producing steel frames for construction in a factory, the assembly process of joint members that constitute the intersections between columns and beams or between beams is particularly troublesome and requires many steps. requires a lot of time and effort.

Normally, these joint members are processed by temporarily assembling the longitudinal and horizontal Type 1 steel members to be assembled to the specified dimensions while suspending them using a crane from a surface plate E with predetermined marking lines. Finish welding is completed by supporting the member with a positioner device that holds the member in a position that facilitates welding of each joint.

Various types of positioners have been known for supporting temporarily assembled joint members for the joint welding process.1 Functionally, the joint members can be moved from side to side by hydraulic actuation of a support arm. It has a structure that allows it to maintain any posture suitable for welding work by rotating, tilting up and down, etc.

However, the main functional significance of conventional positioners is that they can hold the joint member in any position, and the main function of the positioner is that it can hold the joint member in any position.
Due to the fact that the machine is supported on a cantilever at the tip, it is necessary to securely fix the machine to the ground, so the machine itself is fixedly installed in a corner of the factory like other machine tools. It belonged to Therefore, conventionally, when finish welding a joint member using this positioner,
The joint parts that have been temporarily assembled on the surface plate must be lifted by a crane and transported to the positioner position, resulting in loss of work time due to waiting for the crane, and dangers associated with lifting and lowering work using the crane. There was a problem.

(Problems to be Solved by the Invention) In order to solve the above-mentioned problems in the positioner that supports the joint member, the present invention is designed to provide active mobility without making the positioner fixed. It is equipped with the function of a crane in itself, so that the positioner can directly receive the joint parts that have been temporarily welded on the surface plate and immediately proceed to the final welding work, and can be used as a means for transporting the joint parts. The purpose is to eliminate waste and danger in the work process associated with the use of cranes.

(Means for Solving the Problems) As a means for solving the above-mentioned problems, the processing positioner according to the present invention has a positioner that is installed on both sides of joint processing members that are temporarily assembled on a surface plate. A traveling trolley is provided which can move the workpiece to be located in the center of the machine by a pair of rails, and the workpiece is hoisted onto a lifting platform that moves up and down along the gate structure on the traveling trolley. The present invention is characterized in that it is equipped with a workpiece device for performing left/right turning and up/down tilting necessary for .

(Embodiment) Next, an embodiment of the processing positioner of the present invention shown in the drawings will be described. FIG. 1 shows the embodiment.

2 is a side view showing the overall configuration; FIG. 2 is a top view. The basic configuration of this positioner consists of a running cart 4 that moves along a pair of rails 3 laid on both sides of the joint-processed parts 2 that are temporarily assembled on a surface plate 1, and a running cart 4 that is erected on this cart. It consists of a lifting platform 6 for moving the workpiece 2 up and down along the gate structure 5.

The traveling trolley 4 is moved from the outside of the line A to a surface plate by means of rails 3 provided to intersect with the joint machining line A, which is provided with a constant a1 for temporarily assembling the joint machining members 2, for example. It is arranged so that it can be moved in the direction of the workpiece 2 on the workpiece 1 by the drive of a motor 7. Moreover, when this traveling cart 4 moves in the direction of the workpiece 2, the left and right carts 4a
, 4b such that the workpiece 2 moves to the center between them.
These left and right carts 4a, 4b or the gate structure 5
It is integrally composed of.

The lifting platform 6 includes a pair of upper and lower parallel movable beams 8 and 9 that move up and down along the left and right gate posts 5a and 5b4 that constitute the gate structure 5 on the traveling carriage 4, and a pair of parallel movable beams 8 and 9 from the lower movable beam 9 to the traveling carriage 4. It consists of a pair of parallel support beams lO on the left and right that protrude forward. Furthermore, the movable beams 8 and 9 of the lifting platform 6 are sprockets 7) rotated by a motor 11 provided at the top of the gate structure 5.
It is suspended by a pair of chains 13 interposed on the shaft 12, and the other end of the chain 13 is connected to a weight I4 that moves up and down along the back surface of the gate structure 5.
The rotation of the platform 6 causes the elevator platform 6 to move up and down along the gate structure 5.

At the center of the tip of the support beam lO constituting the lifting platform 6, a work device 16 for rotating left and right the workpiece 2 fixed by a table 15 and a work device 17 for tilting it up and down are provided. There is.

The work equipment R'18 for left and right turning consists of a table 15 equipped with a reduction gear 19 on the upper surface that is rotated by a vertical @18 provided at the tip of the support beam 10, and a motor 20 for rotating this table 15. The left and right support beams are
A horizontal shaft 21 constituting a vertically tilting work device 17, which will be described later, is installed between the ends of the O, and the vertical shaft 18 is supported by a vertical bearing 22 provided at the center of the horizontal shaft 21. ing. Further, on the back surface of the horizontal shaft 21, a pedestal 23 that protrudes toward the lower movable beam 9 is provided in parallel with the table 15. Table 1 via gear 25
5 is transmitted to the reduction gear 19 on top.

On the other hand, the work device for tilting down a hill consists of the horizontal shaft 21 provided between the tips of the support beams 10, and a pair of hydraulic cylinders 26 for rotating the horizontal shaft 21. The hydraulic cylinders 26 are arranged on the outer surfaces of the left and right supports Ho such that their rear ends are rotatably supported by arms 27 projecting outside the support beam 10, and the piston rods of these hydraulic cylinders 26 Crank arms 29 28 are attached to both ends of the horizontal shaft 21 at different positions, respectively.
It is continuous. Also, on the back side of the lower movable beam 9, there is a hydraulic unit 30 for operating the hydraulic cylinder 26.
is provided.

As shown in FIG.
When the motor 20 of the pedestal 235 in the left-right turning work device 16 is rotated with the
- The workpiece 2 is rotated in a 360° direction about the vertical axis 18 by being transmitted to the reduction gear 19 via the gear wheel 25 .

Further, when the left and right hydraulic cylinders 26 constituting the vertical tilting work device 17 are operated via the hydraulic unit 30 so that the respective piston rods 28 are operated alternately, the horizontal shaft 21 is rotated by the rotation of the left and right crank arms 29. rotates, and the workpiece 2 is tilted together with the left-right turning work device 18 about the horizontal axis 21 into the states shown at 2a, 2b, and 2C in FIG.

FIG. 4 and subsequent figures show another embodiment. In the positioner according to this embodiment, a pair of upper and lower movable beams 8 and 9 constituting the lifting platform are rotated by a motor 11 on the gate structure 5 using screw rods 3 attached to the gate posts 5a and 5b.
It is designed to go up and down by one rotation. Further, the work device for vertically tilting the workpiece 2 provided at the tip of the support beam 10 constituting the lifting table 6 has a pair of rotating shafts 32 and 33 on the outside of the support beam 10, respectively, as shown in FIG. The rotation of the motor 34, whose respective shafts are mounted on the lower movable beam 9, is reduced by gears 35, 38, 37, 38, 3!
], and the rotation of both rotating shafts 32 and 33 is transmitted to the horizontal shaft 21 via a bevel gear 40.
The structure is such that it can be conveyed.

(Effects of the Invention) The positioner according to the present invention has a work device for turning left and right and tilting the joint processing member up and down as described above in the center of the lifting platform on a traveling carriage that can move on rails.
The positioner itself can be moved directly to the position of the surface plate where the joint parts are temporarily assembled, and after attaching the work parts temporarily assembled on the surface plate to the work equipment, it can be moved back to a position where it is easy to weld. Welding work can be started immediately after the workpiece is moved and the workpiece is displaced to an appropriate posture by the operation of the workpiece device.

Therefore, according to this positioner, it is possible to omit the time and effort of hoisting the workpieces temporarily assembled on the surface plate using a crane and moving them to the position of the stationary positioner. This has the effect of significantly reducing the required working time.

In addition, with conventional stationary positioners, the workpieces that have been temporarily assembled on the surface plate are moved by crane to the positioner's position, so while the workpieces are being moved by the crane, the steel parts before temporary assembly are The crane cannot be used as a means to move the surface plate onto the surface plate, and thus the surface plate is idle in the meantime, waiting for work. In contrast, in the positioner of the present invention, the positioner itself receives and moves the temporarily assembled workpieces on the surface plate, so after the temporarily assembled workpieces are removed, the existing crane is placed on the surface plate. The next steel member to be assembled can be immediately moved and temporary assembly can be started by using the machine, which has the effect of greatly improving the operating efficiency of the entire Shiguchi machining line.

[Brief explanation of the drawing]

FIG. 1 is a side view of a positioner according to one embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a rear view, and FIG. 4 is a side view of a positioner according to another embodiment. Figure 5 is a plan view;
6 is a front view, and FIG. 7 is a sectional view taken along the line ■-■ in FIG. 9: Movable beam lO: Support beam 14 Double weight 15: Table 16: Work device for left and right turning 17: h Work device for downward tilting and vertical movement

Claims (1)

[Claims] (1) A processing positioner for rotating the held steel frame joint workpiece into a free position for welding work, etc., which moves to the workpiece by a pair of rails installed on both sides of the workpiece. A traveling platform that can move up and down along a gate structure on the traveling platform, and a means for attaching workpieces provided at the center of the platform to the left and right and to tilt up and down. A positioner for machining steel frame joint parts, characterized by comprising a work device.