JPS63172B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for automatically inserting a U-shaped tube into a hole in a plate member.

Conventionally, for example, partition plates (plate-shaped members) such as heat exchangers
When inserting a U-shaped tube etc. into a hole, the number of U-shaped tubes is large, hundreds to thousands per unit, so the work is not easy, and it is done manually, which requires a lot of effort and work. This required a lot of man-hours and was inefficient.

The present invention was made in view of the above-mentioned situation, and an object of the present invention is to provide an automatic U-shaped tube insertion device into a hole in a plate-shaped member, which facilitates work, reduces work man-hours, and improves work efficiency. That is.

The device for automatically inserting a U-shaped tube into a hole in a plate-shaped member of the present invention positions the U-shaped tube provided on the front surface of a plate-shaped member having a hole into which the U-shaped tube is inserted into the hole in the plate-shaped member. a U-shaped tube storage box that is transported by a transportation member that positions the U-shaped tube in a direction in which the longitudinal direction of the U-shaped tube is perpendicular to the front surface of the positioning device; It is attached to be movable in the longitudinal direction of the U-shaped tube, has a grip part that can grasp the end of the U-shaped tube in the U-shaped tube storage box and lift it vertically, and is movable in the longitudinal direction of the U-shaped tube. an insertion trolley, which is provided at multiple locations along the length of the U-shaped tube storage box, is movable in the horizontal direction and vertically, and lifts and holds the U-shaped tube at a predetermined height. Equipped with swing rollers,
a swing post that supports the lower part of the U-shaped tube from a direction perpendicular to the longitudinal direction of the U-shaped tube and holds it horizontally;
The present invention is characterized by comprising a control device that automatically controls the operations of the positioning device, the insertion trolley, and the swing post in an interlocking manner.

An embodiment of the apparatus for automatically inserting a U-shaped tube into a hole in a plate member according to the present invention will be described below with reference to FIG. 1 in the case of insertion into a hole in a plate member of a partition plate of a heat exchanger.
FIG. 1 shows a perspective view of the automatic insertion device, in which 1 is an insertion trolley for inserting the U-shaped tube 4, 2 is a rail on which the wheels of the insertion trolley 1 run, and 3 is a housing for the U-shaped tube 4. A U-shaped tube storage box, 5 is a polishing device for polishing the outer surface of the tip of the U-shaped tube 4, and 6 is the inserted U-shaped tube 4.
This is a partition plate made of a heat exchange plate-like member with hundreds to thousands of holes 28 drilled to support the heat exchanger.
Reference numeral 10 is a cylinder (see FIG. 2) which vertically drives a gripping device 30 that grips the tube end of the U-shaped tube 4 supported by the arm 29 of the insertion trolley 1.

In FIG. 2, 7 is a claw attached to the tip of the cylinder 10, and as the cylinder 10 descends, the U
When the protrusion 21 of the sensor 20 contacts the U-shaped tube 4 in the tube storage box 3 and at the same time operates the limit switch 22, the U-shaped tube 4 is automatically closed.
It is designed to be held at a suitable height for grasping. The pawl 8 is attached to the cylinder in the same way as the pawl 7, and the sensor 20 contacts the U-shaped tube so that the sensor 20
When the protrusion 21 operates the limit switch 22, a signal is generated, and the cylinder 9 is activated so that the U-shaped tube 4 can be smoothly gripped together with the claw 7. 23 is a spring that biases the sensor 20 downward; 24 and 25 are the sensors 2;
This is a support for vertically movably supporting the cylinder 10. In Figure 1, 11, 12, 1
Reference numeral 3 denotes a swing post for rotating swing rollers 14, 15, and 16 by a cylinder (not shown) installed in a horizontal position, or moving them up and down by a motor (not shown). When the U-shaped tube 4 is inserted, the U-shaped tube 4 is held in a horizontal state as shown in FIGS. 5 and 6. 17 is a positioning device that connects the U-shaped tube 4 to the partition plate 6;
The rollers 18 are used to position the rollers 18 in the holes 28 into which they are to be inserted. Claws 7, 8, cylinder 9,
10, a sensor 20, a protrusion 21, a limit switch 22, and the like form a gripping device 30. 19
is a roller conveyor which is a transportation member that takes the U-shaped tube storage box 3 into and out of a predetermined position, and the roller conveyor 1
9 and swing posts 11, 12, 13 into U-shaped tube 4
By arranging them on both sides in the longitudinal direction, the structure becomes simple.

Furthermore, the operations of the insertion cart 1, swing posts 11, 12, 13, and positioning device 17 shown in FIG. It's getting old. That is, the gripping device 30 is lowered by the cylinder 10 of the insertion cart 1, the gripping device 30 grips the ends of the U-shaped tubes 4, and the swing posts 11, 12 are held by this operation and lifted as shown in FIG. , 13 to hold it in a horizontal state and move the insertion trolley 1 forward. After reaching the position of the positioning device 17, the U-shaped tube 4 is inserted into the hole 28 of the partition plate 6 after being positioned by the positioning device 17 under automatic interlock control. This will be explained in detail below.

As shown in FIGS. 1 and 2, the U-shaped tube 4 to be inserted is selected by the microcomputer control and the claws 7, 8
, and the tube end is lifted up through the cylinder 10 as shown in FIG. In this state, the swing rollers 14, 15, 16 of the swing posts 11, 12, 13 shown in Fig. 3 swing horizontally one after another so as to go around the underside of the U-shaped tube 4, and rise, as shown in Fig. 4. As in, polishing device 5, positioning device 1
The U-shaped tube 4 is held horizontally at the same height as the roller 18 of No. 7. Subsequently, the insertion cart 1 is advanced to advance the tip of the U-shaped tube 4 to the rollers 18 of the positioning device 17, and after gripping the U-shaped tube 4 with the rollers 18, the insertion cart 1 is further advanced, and the U-shaped tube 4 is gripped by the rollers 18. After polishing the outer surface of the tip using the polishing device 5, as shown in FIG.
The tube 4 is raised to the position of the hole 28 into which it is to be inserted. After positioning the partition plate 6 with respect to the hole 28 into which it is to be inserted by the positioning device 17,
The swing roller 14 of the swing post 11, which obstructs the advancement of the insertion carriage 1, is swung back to its original position and is lowered to advance the insertion carriage 1 and insert the U-shaped tube 4 into the hole 28.
Then move it forward and swing post 12,1
3, the insertion cart 1 is moved forward while the swing rollers 15 and 16 are similarly returned to their initial positions.

Next, since the rollers 18 of the positioning device 17 become an obstacle, the grip by the rollers 18 is also released, the positioning device 17 is lowered, and the insertion cart 1 is further advanced. After this, the claw 8 is released, the insertion cart 1 is further advanced to the amount stored in the microcomputer, and the tip of the U-shaped tube 4 is inserted up to the body plate 26 and tube plate 27, and then inserted to the original position. The trolley 1 is moved backward. Then, the same operation is repeated for each U-shaped tube 4 to insert the U-shaped tube 4 into the hole 28 of the partition plate 6.

In this way, the device for automatically inserting a U-shaped tube into a hole in a plate member according to this embodiment automatically mechanizes all operations from lifting the U-shaped tube from the U-shaped tube storage box to completing insertion into the partition plate. This makes the work easier and relieves the worker from heavy labor, while also significantly reducing the number of work steps and greatly improving work efficiency.
Since one end of the U-shaped tube is lifted and then supported from the lower surface via the swing roller, the U-shaped tube can be gripped and horizontally supported smoothly. Furthermore, since the polishing device is arranged between the partition plate and the positioning device, the structure can be simplified.

FIG. 7 shows another embodiment, and the difference from the above embodiment is that the above embodiment has a swing post 11 with a U-shaped tube 4 disposed on one side of the U-shaped tube 4 in the longitudinal direction;
12 and 13, in this embodiment, support is provided by swing posts placed on both sides. That is, in this embodiment, the U-shaped tube inserted into the partition plate 6 is connected to the swing post 11,
It is supported by swing rollers 14, 15, 16 of 12 and 13 and swing rollers 14A, 15A, 16A of swing posts 11A, 12A, 13A, and the effect is the same as that of the above embodiment.

Further, in both embodiments, when the U-shaped tube 4 is inserted using the insertion cart 1, the U-shaped tube becomes long and a stainless steel tube with no rigidity is bent considerably. In this case, the roller 18 is rotationally driven. By shifting the tubes, the pushing force of the insertion cart 1 is reduced, and the problem of deflection of the U-shaped tube 4 can be solved.

As described above, the U to the hole of the plate member of the present invention
The automatic tube insertion device has the effect of making work easier, significantly reducing the number of work steps, and improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the U-shaped tube automatic insertion device into a hole in a plate member according to the present invention, and FIG.
Detailed drawings of the tube gripping device, Figures 3, 4, and 5
6 and 6 are respectively explanatory diagrams of the state of U-shaped tube insertion by the device shown in FIG. 1, and FIG. Diagram for explaining tube insertion; 1... Insertion trolley, 3... Storage box, 4... U-shaped tube, 5
... Polishing device, 6... Partition plate, 7, 8... Claw, 11, 1
1A, 12, 12A, 13, 13A...Swing post, 14, 14A, 15, 15A, 16, 16
A... Swing roller, 17... Positioning device, 18
...roller, 19...roller conveyor, 20...sensor, 28...hole, 30...gripping device.

Claims (1)

[Scope of Claims] 1. A positioning device provided on the front surface of a plate member having a hole into which the U-shaped tube is inserted, for positioning the U-shaped tube in the hole of the plate member, and a positioning device provided on the front surface of the positioning device. a U-shaped tube storage box that is transported by a transportation member that positions the U-shaped tube in a direction in which the longitudinal direction of the U-shaped tube is perpendicular to the U-shaped tube; an insertion cart that has a gripping part that can grip the end of the U-shaped tube in the U-shaped tube storage box and lift it vertically, and is movable in the longitudinal direction of the U-shaped tube; Swing rollers are provided at multiple locations along the longitudinal direction of the box and are movable in the horizontal direction and in the vertical direction to lift and hold the U-shaped tube at a predetermined height,
a swing post that supports the lower part of the U-shaped tube from a direction perpendicular to the longitudinal direction of the U-shaped tube and holds it horizontally;
An automatic insertion device for a U-shaped tube into a hole in a plate-like member, characterized by comprising a control device that automatically interlocks and controls each operation of the positioning device, the insertion cart, and the swing post. 2. The gripping part of the insertion cart is attached with a sensor that is movably moved in the vertical direction and detects the U-shaped tube, and a claw that clamps the U-shaped tube from above and below in conjunction with the detection of the U-shaped tube by the sensor. An apparatus for automatically inserting a U-shaped tube into a hole in a plate-like member according to claim 1, which is formed from a plate-shaped member. 3. The plate according to claim 1, wherein the swing post is arranged on one side of the U-shaped tube in the longitudinal direction, and the transport member consisting of a roller conveyor is arranged on the other side. A device for automatically inserting a U-shaped tube into a hole in a shaped member. 4 Between the positioning device and the plate member,
The U-shaped hole in the plate member according to claim 1 is provided with a polishing device for polishing and removing rust from the outer surface of the tip of the U-shaped tube held by the positioning roller of the positioning device. Automatic tube insertion device.