JP2003019525A - Mechanism and method for detecting seating of caulking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably detect that a work to be caulked is accommodated in a reception part of a caulking device, and caulked without affecting the measurement accuracy even when some parts are detached from the work. SOLUTION: In a seating detection mechanism 4 of the caulking device, a discharge hole 22 is formed in a seating surface 21 of the reception part 2 of the caulking device 1 for seating the work 5, the high-pressure gas is fed from a feed part 42 through a regulator 45 and a fluid throttle valve 44 in a discharging manner from this discharge hole, and a pressure sensor 43 for measuring the pressure change in the gas in the discharge hole is provided. It can be determined by the degree of the pressure rise in the discharge hole whether or not the work is correctly seated on the seating surface.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to scissors. 2
Two members, for example a heat exchanger tank and a core plate,
The present invention relates to a seating detection mechanism for a scissors device and a method for detecting the seated position, which detects whether or not the scissors is surely positioned at a predetermined position of the receiving portion of the scissors device when the scissors process is performed on the joint part.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional seating detection mechanism for scissors in a scissor device has a through hole provided with a mechanical contact type position sensor 6 in a receiving portion 2 of the scissor device. Two
It was set in a, and it was detected that the scissors were in a predetermined position when scissors. In addition, the code | symbol 3 shows a scissors metal fitting.
However, in this conventional mechanical contact type position sensor 6, when the surface of the scissors is treated with soft metal or flux, the surface treatment material such as soft metal or flux is dropped by the scissors. Then position sensor 6
There is a problem in that the gap between the through holes 2a is clogged to cause a malfunction, or the position sensor 6 is deposited on the surface to deteriorate the measurement accuracy and the scissors defect cannot be reliably detected.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to prevent scissors from falling off from a scissors without affecting measurement accuracy. (EN) Provided are a seating detection mechanism for a scissor device and a detection method therefor capable of reliably detecting that an object has been set in a receiving portion of the scissor device and has been scissored.

[0004]

As a means for solving the above problems, the present invention provides a seating detection mechanism for a scissors device and a detection method therefor described in each of the claims. In the seating detection mechanism of the scissor device according to claim 1, a discharge hole is provided in the seating surface of the receiving portion of the scissor device on which the object to be scissored is seated, and high-pressure gas is supplied to this discharge hole and at the same time inside the discharge hole. A pressure sensor for measuring the pressure change of gas is provided. As a result, when the scissors are seated on the seating surface and are scissored during scissors, the scissors load pushes the scissors to the seating surface, closing the discharge holes and increasing the pressure inside the discharge holes. If the scissors are not seated on the seating surface and are scissored, the discharge hole is not closed and the pressure rise in the discharge hole is small. It will be possible to detect it with certainty. Further, since the high-pressure gas is discharged, the substance dropped from the scissors is not blown off by the high-pressure gas and is not deposited on the seating surface, and the detection accuracy does not deteriorate.

According to another aspect of the seating detection mechanism of the present invention, a regulator is arranged between the gas supply unit for high pressure gas and the flow rate throttle valve, and the seating position is controlled by setting the supply pressure of the high pressure gas to a predetermined pressure. The detection accuracy is improved. The seating detection method of the scissors according to claim 3 uses the seating detection mechanism of the scissors device according to claim 1 or 2 to accurately seat the scissors on the receiving portion. It is determined whether or not the scissors have been positioned and scissors have been performed, and it is possible to reliably detect whether or not the scissors are properly seated on the seating surface of the receiving portion.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A seating detection mechanism for a scissor device and a detection method therefor according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of a seating detection mechanism of a scissor device of the present invention. In FIG. 1, a receiving portion 2 having a seating surface 21 for receiving an object 5 at the time of scissors, which is a part of the scissors device 1, and scissors for scissors rotatably supported by a link (not shown). The metal fitting 3 is shown. As the scissors to be scissors 5, for example, a tank 5 which is a resin tank heat exchanger.
1, the core plate 52 and the seal member 53 are illustrated. Further, in the present invention, the seating surface 21 of the receiving portion 2
A discharge hole 22 is bored in the chamber so that gas is discharged from the supply portion of the seating detection mechanism described later.

The seating detection mechanism 4 for detecting whether or not the scissors 5 has been positioned at a predetermined position of the receiving portion 2 of the scissors device 1 communicates with the discharge hole 22 formed in the seating surface 21 of the receiving portion 2. Pipe 41 and the discharge hole 2 connected to this pipe 41
2, a gas supply unit 42 and a pipe 41 are connected in the middle, and a pressure sensor 43 for measuring the pressure in the discharge hole 22 and a pipe 41.
And a fluid throttle valve 44 for adjusting the flow rate of the gas supplied to the discharge hole 22, and the fluid throttle valve 44 and the supply unit 4.
It is composed of a regulator 45 provided in the pipe 41 between the two and adjusting the pressure of the gas supplied to the discharge hole 22. Note that the regulator 45 may be omitted in some cases, and the pressure sensor 43 may be provided in the discharge hole 22 instead of being provided in the pipe 41 between the fluid throttle valve 44 and the discharge hole 22. Good.

Next, the operation of the seating detection mechanism of the scissors device of the present invention constructed as described above and the seating detection method thereof will be described. First, high-pressure gas is supplied to the pipe 41 from the supply unit 42. The pressure of the gas is adjusted to a predetermined pressure by the regulator 45 and to a predetermined flow rate by the fluid throttle valve 44, and is discharged from the discharge hole 22 formed in the seating surface 21 of the receiving portion 2 through the pipe 41. Next, the scissors object 5 is seated on the seating surface 21 of the receiving portion 2. In this state, there is a gap between the scissors 5 and the seating surface 21, gas is released, and the pressure of the discharge hole 22 is close to atmospheric pressure.

In this state, the scissors fitting 3 is actuated to scissor the scissors object 5. In the heat exchanger shown in FIG. 1, the core plate 52 is scissors with respect to the tank 51. At this time,
If the scissors 5 is properly seated, the scissors metal fitting 3 presses the scissors 5 against the seating surface 21 of the receiving portion 2, so that the scissors 5 closes the opening of the discharge hole 22 and discharges. The pressure in the hole 22 is
It rises to the pressure adjusted by the regulator 45. Further, when the scissors are not properly seated and are scissored, the object 5 to be scissors does not close the opening of the discharge hole 22, so that the pressure in the discharge hole 22 does not rise. Therefore, by obtaining the maximum pressure in the discharge hole 22 at the time of scissoring, it becomes possible to surely detect whether or not the scissored object 5 is properly seated on the seating surface 21 of the receiving portion 2. Further, in this case, since the high-pressure gas is discharged, the substance dropped from the scissors 5 is not blown off by the high-pressure gas and is not deposited on the seating surface 21, and the detection accuracy does not deteriorate.

As described above, in the seating detection mechanism of the scissor device and the seating detection method using the same according to the present invention, the seating surface of the receiving portion of the object to be scissored is provided with the discharge hole, and the discharge hole has a high pressure. By supplying the gas, it is possible to reliably detect that the scissors are fit in the receiving part and are scissored without affecting the measurement accuracy even if the scissors fall out of the scissors. .

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a seating detection mechanism of a scissor device according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a seating detection mechanism of a conventional scissor device.

[Explanation of symbols]

2 ... Receiver 21 ... Seating surface 22 ... Discharge hole 3 ... Scissors 4 ... Seating detection mechanism 42 ... Supply unit 43 ... Pressure sensor 44 ... Fluid throttle valve 45 ... Regulator 5 ... Scissors

Claims (3)

[Claims] 1. A seating detection mechanism of a scissor device for detecting whether or not a scissored object to be scissored is positioned at a predetermined position of a receiving part of the scissoring device. A discharge hole provided in the seating surface of the, a gas supply unit for supplying high-pressure gas to the discharge hole, a flow throttle valve provided in the middle of the pipe connecting the gas supply unit and the discharge hole, the flow throttle A seating detection mechanism for a scissors device comprising a pressure sensor provided between the valve and the discharge hole or in the discharge hole. 2. The seating detection mechanism for the scissors device according to claim 1, further comprising a regulator between the gas supply unit and the flow rate throttle valve. 3. The seating detection of the scissors for detecting whether or not the scissors is positioned at a predetermined position of the receiving portion by using the seating detection mechanism of the scissors device according to claim 1. The method comprises: (1) supplying high-pressure gas from a gas supply part to a discharge hole provided in a receiving part of the scissor device; and (2): seating a scissor object on the receiving part. (3). Measuring the pressure change of the gas in the discharge hole when scissors the scissors with scissors of the scissors device, and (4). The maximum value at the time of scissors is the predetermined pressure value. A step of determining whether or not the scissors are positioned at a predetermined position of the receiving part and scissors are performed if the scissors are within the range; and the seating detection of the scissors. Method.