JPS6328736B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for inserting a pipe into a member having a plurality of holes by pushing the pipe in the axial direction.

Conventionally, inserting a pipe into a tube plate or the like has normally been done manually, but recently various automation methods have been used to improve the efficiency of the process.

The purpose of the present invention is to easily cope with changes in the parallel pitch of pipes in a device that simultaneously pushes multiple pipes arranged in parallel when automating pipe insertion, and also to detect overload of pipe pushing force and stop the drive. It is equipped with a safety mechanism.

The present invention will be described below with reference to embodiments shown in the drawings. Reference numeral 1 denotes a push cart, which has a sliding member 1a. The sliding member 1a formed on the pusher truck 1 engages with a guide rail 3 provided on the beam 2, so that the pusher truck 1 can slide along the guide rail 3. A pipe 25 is mounted on the beam 2 in parallel with the guide rail 3. A sprocket 5, which is rotatably driven by a drive device (not shown), is pivotally supported on the beam 2, and forms a pair with a driven side sprocket 5'. . A chain 6 is hung on the sprocket 5, and the ends of the chain 6 are connected via a chain tensioning fitting 7, a fixing fitting 8, and an adjusting screw 9. Further, since the fixing fitting 8 is fixed to the pusher carriage 1, the pusher carriage 1 slides along the guide rail 3 as the sprocket 5 rotates. Brackets 4a and 4b are formed on the pushing cart 1, and a pivot shaft 10 is rotatably supported by the brackets 4a and 4b. Further, the pivot shaft 10 can be indexed through 180 degrees by a positioning mechanism (not shown). The pivot shaft 10 has a corner 10a, and T-shaped grooves are formed on two opposing sides of the corner 10a, into which a T-nut 14 is fitted. Reference numeral 11 denotes arms, which are arranged in parallel at equal intervals on the pivot shaft 10 by T-nuts 14 and bolts 21. Reference numeral 12 denotes a lever that is pivotally supported on the arm via a pin 13, and has a guide pin 15 fixed to its tip. The guide pin 15 comes into contact with the pipe 25 to be pushed. The lever 12 is positioned on the arm 11 by the engagement of the notch 12a with a steel ball 16 biased by a spring 17, and when an overload occurs while pushing the pipe 25, the arrow shown in FIG. It is set to rotate in the direction. 18 is a spring receiver. An arm 19 is swingably supported by the pivot shaft 10 via a pin 20 and a bracket 22, and swings as the lever 12 rotates to actuate the limit switch 24. Therefore, when the limit switch 24 is activated, it is detected that an overload has occurred in the pushing force of the pipe 25. 2
3 is a spring that connects the arm 19 and the bracket 22.

The operation of the embodiment configured as described above will be explained. The pipes 25 are arranged in parallel at a predetermined pitch, and the arm 11 is also fixed to the pivot shaft 10 at the same pitch as the pipes 25. Rotating axis 1
Arm 1 fixed at a position opposite corner 10a of 0
1 are fixed in parallel at different pitches.

First, when the sprocket 5 is rotated counterclockwise in FIG. 2 by a drive device (not shown), the chain 6 is driven, and thereby the pusher carriage slides in the direction of the arrow, and the guide pin 15 moves toward the pipe. 25 end and press the pipe 25. If an overload occurs while pushing the pipe 25, the lever 12 rotates and operates the limit switch 24.
A control device (not shown) stops the rotation of the sprocket 5 due to the operation of the sprocket 5, thereby preventing damage to the device or the pipe.

Next, pipes 25 arranged in different parallel pitches
When pushing in, the pivot shaft may be rotated 180 degrees and the guide pins 15 of the levers 12 fixed at different parallel pitches may be positioned so as to engage with the ends of the pipes 25. The parallel pitch of the arm 11 can be changed freely by tightening the T-nut 14 and bolt 21.

As is clear from the above description of the embodiments, the present invention not only makes it possible to easily cope with changes in the parallel pitch of the pipes in a device for simultaneously pushing in a plurality of pipes arranged in parallel, but also It also has the effect of preventing damage to the device or pipe because it detects an overload of pushing force and stops the drive.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a partially enlarged view of FIG. 1, FIG. 3 is a side view of FIG. 2, and FIG. be. 1...Push truck, 2...Beam, 3...Rail, 4a, 4b...Bracket, 5...Sprocket, 6...Chain, 10...Swivel axis, 11...
Arm, 12... Lever, 14... T-nut, 1
5... Guide pin, 16... Steel ball, 17... Spring, 19... Arm, 24... Limit switch, 25... Pipe.

Claims (1)

[Claims] 1. A trolley body supported on a pipe mounting base so as to be slidable in the pipe pushing direction, a drive device for sliding the trolley body, and a drive device that is pivotally supported by the trolley body and is rotatable around an axis perpendicular to the pipe pushing direction. a pivot axis;
a plurality of pushing members installed in two groups at symmetrical positions centered on the axis of the pivot shaft and having different mounting pitches for each group; and a guide pin fixed to the pushing member and engaging with the end of the pipe to be pushed. , and means for detecting overload occurring on the guide pin.