JP2000035398A - Device for verification-testing of tube welding quality - Google Patents

Abstract

PROBLEM TO BE SOLVED: To verify the quality of the welded part of a thin-diameter tube, improve working environment, and reduce working time by providing a chip collection case, a vacuum pump, a suction duct, circular saw blade with a drive motor, a tube insertion hole for vertical and horizontal cut-off and notching, and the like inside and outside the stand of a quality verification-testing device. SOLUTION: A vacuum pump 10 for sucking with a chip-collection case 11 and a chip suction duct 9 and accommodating into the case 11 is provided at a stand 17, a circular saw blade 2 is driven by a drive motor 1, and the thickness of the teeth of the blade 2 ranges from 0.3 to 0.5 mm, and a thin- diameter tube with an outer diameter of 3.2-25.4 mm. When the tube is to be cut, in the blade 2 does not deviate since they are driven by the drive motor 1, and working time is reduced. The chip of the tube being cut by the blade 2 does not scatter and enters the suction duct 9 and is accommodated in the collection case 11 by the vacuum pump 10, and hence do not scatter around, thus enabling working environment and quality to be verified, time and labor to be reduced, and working efficiency to be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test device for checking the quality of a welded portion of a tube using a drive motor.

[0002]

2. Description of the Related Art Small diameter tubes having an outer diameter of 3.3 mm to 25.4 mm are currently employed in large quantities, particularly in the fields of semiconductor manufacturing, biotechnology, food and medicine.

[0003] The welding of the connection of such a thin tube is performed by an automatic welding machine. However, since the diameter is small, the quality of the welded portion cannot be confirmed as it is. Therefore, as a means of checking the reproduction accuracy of the welded portion and at the same time, checking the quality of the welded portion, a cut is made in the tube to open it.

[0004] The welding portion is confirmed by using a test piece tube. However, as shown in FIG. 2, a welded test piece tube (since this test piece tube is exactly the same as the main welding tube, it is simply referred to as Tube.)
Is made by making a cut with a metal saw and opening as shown in FIG.

[0005] However, when the small-diameter tube is cut with a metal saw, the cutting allowance of the metal saw tooth is 1.6 mm due to the thickness of the teeth and the hand-made shaking.
Outer diameter 6.35mm x board thickness 1mm
25% to 30% of the total length of the inner bead will disappear in the tube of No. 1 and the cut is made only for the vertical part as shown in FIG. Therefore, there was a problem that the quality of the welded portion could not be checked accurately.

Further, in the semiconductor manufacturing, biotechnology, food and medical fields, there is a problem that the working environment is deteriorated because chips generated when cutting a test piece tube with a metal saw are scattered. In a clean room, it is absolutely impossible to scatter chips, so when cutting a tube with a metal saw, it must be done in a place different from the actual welding place and by hand. There is a problem that the work to be performed requires much time and labor, and the work efficiency is extremely deteriorated.

[0007]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible to accurately confirm the quality of a welded portion of a small-diameter tube, to improve the working environment and to shorten the working time. It was done.

[0008]

In order to achieve the above object, the present invention provides a table, a door provided at one end of the table,
A chip collecting case and a vacuum pump provided inside the stand, a suction duct provided at one end of the vacuum pump, a protective hood provided above the suction duct, and a round provided inside the protective hood. A saw tooth, a driving motor provided on one side of the circular saw tooth, a tube insertion hole for lateral cutting and cutting on the side surface, a recess at the front end, and a first tube clamp at the top. Upper part of a base having a slide member, a slide member therein, a stroke adjustment knob and a vertical slit tube insertion hole provided at a rear end, and a slide handle and a second tube clamp provided on one side. And a table provided in the apparatus.

The outer diameter of the tube is 3.2 mm to 2 mm.
5.4 mm, the thickness of the circular saw tooth is 0.3 mm
It is preferably 0.5 mm.

Since the conventional metal saw is used by hand, the hand shakes when making a cut in the tube and the thickness of the metal saw tooth is about 1 mm. Approximately 1.6mm-2
However, in the present invention, when making a cut in the tube, the circular saw tooth is driven by a drive motor, so that it does not shake, and the cut does not take much time. 0.3mm-0.5m
m, the width of the cut when making a cut in the tube is almost the same as the tooth thickness of the circular saw tooth, it is much thinner than when using a metal saw, and 25% to 30% of the internal bead disappears. Nor.

Since the circular saw tooth is provided with the protective hood, the chips of the tube cut by the circular saw tooth are not scattered, and the chips enter the suction duct. The chips are sucked into the suction duct by the vacuum pump and stored in the chip recovery case, so that the chips are not scattered. The swarf stored in the swarf storage case is opened to the outside and thrown away. In this way, the working environment is improved because the chips are not scattered around, and the accuracy and quality of the weld can be checked at almost the same place as the place to be welded, so it takes less time and effort The efficiency is also very good.

The tube is cut horizontally and vertically so that the weld is opened, so that the weld can be checked with the weld open widely, and the weld can be accurately grasped in no time. You can do it. When making a cut in the side, the tube is inserted into the hole for inserting the tube for cutting horizontally and cutting the slide member, and fixed firmly with the first tube clamp. The length of cutting of the tube is adjusted by moving the slide member back and forth with the slide handle, and when the adjustment is completed, the slide member is fixed so as not to move with the stroke adjustment knob. Then, the circular saw blade is moved by a drive motor to cut the tube to an appropriate length, and then a lateral cut is made.

For vertical cutting, a tube is inserted into a tube insertion hole for vertical cutting, and the tube is fixed by a second tube clamp. The length of the cut is adjusted using a slide handle, and the stroke adjustment knob is used to fix the slide member so as not to move, and cutting with a circular saw tooth is similar to the case of making a horizontal cut.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 3 are views showing a procedure for cutting a tube 7 by a conventional metal saw. FIG. 1A shows a place where a cut is made to an appropriate length to make a cut and open a welded tube 7. 1 (B) shows a cut-out state, FIG. 1 (C) shows a state in which a vertical cut 22 is made with a metal saw, and FIG. 1 (D) shows a state using a tool. Thus, the cut portion of the tube 7 is opened. FIG. 2 shows an elevational view of the state where the tube 7 is opened, and FIG. 3 shows a state where a cut is made in the tube 7 with a metal saw. In this conventional method, the metal saw cuts into the tube by hand, so chips are scattered around the metal saw, the tooth thickness of the metal saw is about 1 mm, and the hand is shaky because the hand shakes. Since the width of the portion is as large as about 1.6 to 2 mm, and the opening is formed only by the vertical notch 22, the area for confirming welding of the welded portion 21 is small.

FIG. 4 is a three-dimensional drawing of the tube welding quality checking device of the present invention. At one end of the table 17, a door for taking out and putting in the chip collecting case 11 is provided.
Is provided with a swarf collecting case 11 for absorbing swarf and a vacuum pump 10 for sucking swarf from the suction duct 9 and storing the swarf in the swarf collecting case 11.
Is provided with a suction duct 9 for sucking chips at one end,
A protective hood 3 is provided above the suction duct 9 so as to surround the circular saw tooth 2, and the circular saw tooth 2 is provided with a drive motor 1 for rotating the circular saw tooth 2. The thickness of the circular saw tooth 2 is preferably from 0.3 mm to 0.5 mm, but may be up to 1.5 mm.

The table 17 includes a table 18 provided above the table.
And a slide member 5 provided inside the table 18. The slide member 5 cuts the length of the tube 7 with a circular saw tooth 3 at the front end and cuts 24 vertically and horizontally,
A recess 19 is provided so that the tube 23 can be inserted therein, and a tube insertion hole 4 for inserting a tube 7 into the side surface for inserting the tube 7 and a first tube clamp 15 are provided at an upper portion. The first tube clamp 15 is of a screw type so that the tube 7 is firmly fixed after the tube 7 is inserted into the tube insertion hole 4 for transverse cutting and cutting. The outer diameter of this tube is about 3.2mm
２５25.4 mm.

The table 18 is provided with a stroke adjusting knob 6 and a tube insertion hole 13 for vertical cutting at the rear end, and a slide handle 8 and a second tube clamp 14 on one side. By rotating the slide handle 8, the slide member 5 moves back and forth, thereby adjusting the slide member 5, and when the adjustment is completed, the slide member 5 is fixed by the stroke adjusting section 6, thereby the tube for transverse cutting and cutting. The length of cutting and cutting of the tube 7 inserted into the insertion hole 4 and the tube 7 inserted into the tube insertion hole 13 for vertical cutting is set to an appropriate desired length.

FIG. 5 is a view seen from a slightly deformed lateral side of FIG. 4 and shows a state where the tube 7 inserted into the tube insertion hole 13 for vertical cutting can be cut into the vertical cut 24 by the circular saw tooth 2. .

FIG. 6 shows a state in which the tube 7 having the vertical and horizontal cuts 24 and 23 is opened by the opening tool 16.

FIG. 7 is a diagram showing a procedure for implementing the present invention.
FIG. 7A shows a cut portion for cutting into an appropriate length to cut and open the welded tube 7, and FIG. 7B shows a cut state, and FIG. C)
Indicates a state in which a horizontal cut 23 is made, and FIG.
Indicates a state in which a vertical cut 24 is made, and FIG.
Shows a state in which the welded portion 21 is opened. This opening is performed by the opening tool 16 shown in FIG.

FIG. 8 shows an elevational view of the tube 7 with the lateral cuts 23 in it, and FIG.
FIG. 10 is an elevational view of the tube 7 in a state where a cut is made in FIG. 10. FIG. 10 is an elevational view of the tube 7 in a state where the welded portion 21 is opened. It can be seen that the state of can be confirmed.

[0022]

Since the present invention has the above structure, it is possible to confirm the reproducibility of the welded portion and the accuracy of the welding of the welded portion, and to improve the environment of the welding work and shorten the working time. I can do it.

[Brief description of the drawings]

FIG. 1 is a view showing a procedure for cutting a tube by a conventional metal saw.

FIG. 2 is an elevational view of a state where a conventional tube is opened.

FIG. 3 is a diagram showing a state in which a tube is cut with a conventional metal saw.

FIG. 4 is an elevation view of the tube welding quality checking device of the present invention.

FIG. 5 is a view of the tube welding quality confirmation test apparatus of the present invention viewed from a slightly deformed side surface.

FIG. 6 is a view showing a state in which the tube is opened by an opening tool.

FIG. 7 is a diagram showing an enforcement procedure of the present invention.

FIG. 8 is an elevational view of the tube with the side cuts.

FIG. 9 is an elevational view of the tube with vertical and horizontal cuts.

FIG. 10 is an elevational view of the tube with the welded portion opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drive motor 2 Circular saw blade 3 Protective hood 4 Tube insertion hole for horizontal cutting and cutting 5 Slide member 6 Stroke adjusting knob 7 Test piece tube 8 Slide handle 9 Suction duct 10 Vacuum pump 11 Chip recovery case 12 Door 13 Vertical cutting and cutting Tube insertion hole for 14 14 2nd tube clamp 15 1st tube clamp 16 Opening tool 17 units 18 Base provided on top of unit 19 Depression 20 Cutting place 21 Welded part 22, 24 Vertical cut 23 Horizontal cut

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) B23Q 11/00 B23Q 11/00 M G01N 33/44 G01N 33/44

Claims (3)

[Claims] 1. A table (17), a door (12) provided at one end of the table (17), a chip collecting case (11) provided inside the table (17), and a vacuum pump ( 10)
A suction duct (9) provided at one end of a vacuum pump (10), a protective hood (3) provided above the suction duct (9), and a circular saw tooth provided inside the protective hood (3); (2), a driving motor (1) provided on one side of the circular saw tooth (2), a tube insertion hole (4) for lateral cutting and cutting in the side surface, and a concave portion (19) in the front end. A slide member (5) provided with a first tube clamp (15) on an upper part thereof; and a slide member (5).
, A stroke adjusting knob (6) and a tube insertion hole (13) for vertical cutting are provided at the rear end, and a slide handle (8) and a second tube clamp (14) are provided on one side surface. And a table (18) provided above the mounted table (17). 2. An outer diameter of the tube is 3.2 mm to 2 mm.
A tube welding quality confirmation test device characterized by being 5.4 mm. 3. The tooth thickness of the circular saw tooth (2) is 0.3 m.
A tube welding quality confirmation test device characterized by having a diameter of m to 0.5 mm.