JPH012739A - Caulking device for heat exchanger - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat exchanger caulking device for caulking a seat plate to a heat exchanger tank.

[Conventional technology]

In order to caulk the seat plate to the tank of the heat exchanger, for example, a caulking device for a heat exchanger as disclosed in Japanese Utility Model Application Publication No. 60-60124 is used.

FIG. 6 shows this type of heat exchanger caulking device. In this heat exchanger caulking device, a punch member 15 equipped with a punch 13 is fixed to the upper part of a base 11.
By rotating the base 11 around the rotating shaft 17, claw portions 27 formed at both ends of the seat plate 25 are formed on the back surface 23 of the hakama portion 21 that is formed to protrude outward and laterally from the opening of the tank 19. is bent and caulked.

Further, FIG. 7 shows another caulking device for a heat exchanger. In this caulking device for a heat exchanger, a punch member 35 having a punch 33 is mounted on the upper part of a base 31 which is urged upward by a spring 29. It is arranged so as to be movable in the horizontal direction, and the inclined surface 3 is attached to the rear end inclined surface 37 of the punch member 35.
9, the punch member 35 moves toward the seat plate 25 side, and the seat plate 25 is brought into contact with the back surface of the hakama portion 21 that is formed to protrude outwardly from the opening of the tank 19.
Claw portions 27 formed at both ends of are bent and caulked.

[Problems to be Solved by the Invention] However, in the heat exchanger FIA crimping device shown in FIG. There is a problem that variations occur in the shape of the caulking portion of the claw portion 27.

In addition, in the heat exchanger caulking device shown in FIG. 7, since the punch member 35 moves forward and descends, the spring 2
It is difficult to set the biasing force 9, and variations in the height of the seat plate 25 cause variations in the caulking pressure, resulting in variations in the shape of the caulking portions 27.

[Purpose of the invention]

The present invention solves the above-mentioned problems, and an object of the present invention is to provide a heat exchanger caulking device that can reliably eliminate variations in the caulking shape of the claw portions.

[Means for solving problems]

The caulking device for a heat exchanger according to the present invention is a caulking device for a heat exchanger that bends and caulks claws formed at both ends of a seat plate on the back side of a hakama part that is formed to protrude outward from a tank opening. In the caulking device, a holding member supports the seat plate with the claw portion facing upward and the opening of the tank placed on the seat plate, and a holding member disposed on the side of the Fi plate and facing the seat plate side. A punch member having a punch, a horizontal movement mechanism that moves the punch member in a horizontal direction and bends the upwardly directed claw portion of the seat plate toward the back surface of the hakama portion using the tip end surface of the punch, and the punch member. It is provided with a vertical movement mechanism that moves the member in the vertical direction and presses the claw portion bent on the back surface of the hakama portion downward with the lower surface of the punch.

[Operation of the invention] In the present invention, the horizontal moving machine +ti is operated by the holding member with the claw portion of the seat plate facing upward and the opening of the tank placed on the seat plate. , the punch member moves horizontally toward the seat plate, and the upwardly directed claw portion of the seat plate is bent toward the back surface of the hakama portion by the tip end surface of the punch.

In this state, the vertical movement R sideways is activated and the punch part F is moved downward! The claw portion bent on the back surface of the hakama portion is pressed downward by the lower surface of the punch to perform caulking.

[Embodiments of the invention]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, details of the present invention will be described with reference to an embodiment shown in the drawings.

1 and 2 show an embodiment of the heat exchanger caulking device of the present invention, and in the figures, reference numeral 43 indicates a resin tank.

This tank 43 has a hakama part 45 formed so as to protrude outward and laterally from the opening of the tank 43.

Further, reference numeral 47 indicates a seat plate that is disposed at the opening of the tank 43 and has a groove 51 around the entire circumference for accommodating the O-ring 49.
A claw portion 55 for caulking 7 to the back surface 53 of the hakama portion 45 is formed.

The groove portion 51 of the seat 4Ii, 47 is supported by abutting the lower surface 61 and the side surface 63 in a notch portion 59 formed at the upper end of the holding member 57.

That is, this holding member 57 supports the seat plate 47 and the tank 43 with the claw portion 55 of the seat plate 47 facing upward and with the opening of the tank 43 placed on the seat plate 47.

A punch member 67 having a punch 65 on the side of the seat plate 47 is arranged on the side of the seat plate 47.

This punch member 67 is movable in the horizontal direction by a horizontal movement mechanism 69, and the seat plate 47 is directed upward.
The claw portion 55 is bent toward the back surface 53 of the hakama portion 45 using the tip surface 71 of the punch 65.

The horizontal movement mechanism 69 includes a slide base 73 on which the punch member 67 is placed and guides the punch member 67 in the horizontal direction, and is fixed to the slide base 73 via a bracket 75 to move the punch member 67. It has a horizontal movement actuator 77.

A slide guide 79 is disposed on the upper surface of the punch member 67, and by abutting a convex portion 83 formed on the punch member 67 with an end surface 81 of the slide guide 79, the punch member 67 is moved in the direction of the seat plate 47. Positioning is performed.

Below the punch member 67, move the punch member 67 downward and insert the claw portion 55 bent on the back surface 53 of the hakama portion 45.
A vertical movement mechanism 87 that presses downward by the lower surface 85 of the punch 65 is arranged.

This vertical movement mechanism 87 includes a pair of guide members 89 that guide the slide base 73 in the vertical direction, and a pair of guide members 89 that guide the slide base 73 in the vertical direction.
The vertical movement actuator 91 performs three movements.

That is, a pair of guide rods 93 are fixed to both sides of the lower surface of the slide base 73, and the guide rods 93 are movably inserted through guide posts 97 fixed to the upper surface of the pedestal 95. .

Furthermore, a piston rod 99 of a vertical movement actuator 91 fixed to the upper surface of the pedestal 95 is fixed to the lower surface of the slide base 73.

Furthermore, stopper blocks 101 are fixed on the pedestal 95 at regular intervals in the front and back of the figure, and the lower surface of the slide base 73 comes into contact with the upper surface of the stopper block 101, causing the slide base 73 to move downward. movement is restricted.

In the heat exchanger caulking device configured as described above, the claw portion 55 of the seat plate 47 is directed upward by the holding member 57, and the opening of the tank 43 is placed on the seat plate 47. The staking is done.

That is, first, the horizontal movement actuator 77 of the horizontal movement mechanism 69 is actuated, the punch member 67 moves horizontally toward the seat plate 47, and the claw portion 55 of the seat plate 47, which is directed upward, touches the tip of the punch 65. The back side 5 of the hakama part 45 is connected to the surface 71.
It is bent towards 3.

Further, the movement of the punch member 67 is stopped at the position where the convex portion 83 of the punch member 67 abuts the end surface 81 of the slide guide 79.

In this state, the vertical movement actuator 91 of the vertical movement mechanism 87 is activated, and as the slide base 73 moves downward, the punch member 67 is moved downward and bent to the black side 53 of the hakama part 45. The claw portion 55 is pressed downward by the lower surface 85 of the punch 65 to perform caulking.

Note that the movement of the slide base 73 is
3 is stopped at the position where the lower surface thereof contacts the stopper block 10i.

Therefore, in the heat exchanger tA WS caulking device configured as described above, the punch member 67 is moved in the horizontal direction by the operation of the horizontal movement mechanism 69, and the seat plate 47 is directed upward.
The claw portion 55 of the punch 65 is bent toward the back surface 53 of the hakama portion 45 by the tip surface 71 of the punch 65, and then the punch member 67 is moved downward by the operation of the vertical movement a mechanism 87, and the hakama portion 45 is bent.
The claw portion 55 bent on the back surface 53 of the punch 65 is inserted into the lower surface 8 of the punch 65
5 to press downward, the claw part 5
It becomes possible to reliably eliminate the variation in the caulking shape of No. 5.

3 and 4 show another embodiment of the crimping device for a heat exchanger according to the present invention. In this embodiment, the punch member 103 corresponds to the claw portion 55 formed on the seat plate 47. ,
Multiple arrays are arranged in parallel.

These punch members 103 - are configured to be moved by a plurality of horizontal movement actuators 105 arranged corresponding to these punch members 103 .

With the heat exchanger caulking device configured as described above, it is possible to obtain almost the same effect as that of the above-mentioned embodiment.
In this embodiment, each claw portion 55 is caulked separately by each punch member 103, so that it is possible to concentrate a strong caulking force on each claw portion 55, thereby making the claw portion 55 more secure. It becomes possible to perform caulking.

In the heat exchanger caulking device configured as described above, for example, since a pipe or the like is formed to protrude from the tank 43, when the punch member 103 interferes with this portion, the interfering punch member 103 By not activating the horizontal movement actuator 105 for moving the horizontal movement actuator 105 and only activating the horizontal movement actuator 105 for other parts, it is possible to caulk the claw portion 55.

Therefore, it becomes possible to flexibly respond to design changes of the tank 43 and the like.

In addition, in the embodiment shown in FIGS. 3 and 4, an example was explained in which the horizontal movement actuator 105 is arranged in a straight line, but when the pitch of the claw portions 55 of the seat plate 47 is short, the arrangement shown in FIG. As shown, by arranging the horizontal movement actuators 105 in a staggered manner, each punch member 1
03 can be connected to the horizontal movement actuator 105.

[Effects of the Invention] As described above, the present invention provides a holding device that supports a heat exchanger caulking device with the claw portion of the seat plate facing upward and the opening of the tank placed on the seat plate. A member, a punch member arranged on the side of the seat plate and having a punch on the seat plate side, and the punch member is moved in the horizontal direction, and the claw part of the seat plate directed upward is struck by the tip of the punch on the hakama part. It consists of a horizontal movement mechanism that bends the punch member toward the back surface of the hakama part, and a vertical movement mechanism that moves the punch member in the vertical direction and presses the claw part bent on the back surface of the hakama part downward with the bottom surface of the punch member. Therefore, there is an advantage that it is possible to reliably eliminate variations in the caulking shape of the claw portions.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the caulking device for a heat exchanger according to the present invention. FIG. 2 is a top view of FIG. 1. FIG. 3 is a top view showing another embodiment of the caulking device for a heat exchanger according to the present invention. FIG. 4 is a side view of FIG. 3 viewed from the horizontal movement actuator side. FIG. 5 is a side view showing another example of the arrangement of horizontal movement actuators. FIG. 6 and FIG. 7 are explanatory diagrams each showing a conventional caulking device for a heat exchanger. [Explanation of symbols of main parts] 43...Tank 45...Hakama part 47 ・ ・ ・ Seating side 53... Back side 55... Claw part 57... Holding member 67.103... Punch member 69...Horizontal movement mechanism 71.105...Horizontal movement actuator 87...
- Vertical movement mechanism 89...Guide member 91...Actuator for vertical movement. Figure 4 Figure 5 Figure 6 Figure 7

Claims (3)

[Claims] (1) In a crimping device for a heat exchanger in which claws formed at both ends of a seat plate are bent and crimped on the back side of a hakama part that is formed to protrude outward and laterally from a tank opening, the seat plate is a holding member that supports the opening of the tank with the claw facing upward and placed on the seat plate; a punch member that is disposed on the side of the seat plate and has a punch on the seat plate side; a horizontal movement mechanism that moves the punch member in the horizontal direction and bends the upwardly directed claw portion of the seat plate toward the back surface of the hakama portion using the tip end surface of the punch; A crimping device for a heat exchanger, comprising: a vertical movement mechanism that presses a claw portion bent on the back surface of the hakama portion downward by a lower surface of a punch. (2) The horizontal movement mechanism includes a slide base that guides the punch member in the horizontal direction, and a horizontal movement actuator that is fixed to the slide base and moves the punch member. Crimping device for exchanger. (3) A plurality of punch members are arranged and each is moved by a horizontal movement actuator.
A caulking device for a heat exchanger as described in Section 1. (4) The caulking device for a heat exchanger according to claim 2, wherein the vertical movement mechanism comprises a guide member that guides the slide base in the vertical direction, and an actuator for vertical movement that moves the slide base.