Vacuum gage tube breaking machine and method of using same

By designing a vacuum gauge tube breaking machine, and utilizing automated clamps and electric heating devices, the safety risks associated with manual breaking in existing technologies have been resolved, achieving a safe and convenient vacuum gauge tube breaking process.

CN116417309BActive Publication Date: 2026-04-24XIAN AEROSPACE MEASUREMENT & TESTING RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN AEROSPACE MEASUREMENT & TESTING RES INST
Filing Date
2021-12-31
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing vacuum gauge breaking methods require manual operation, which poses risks of burns and fires and is therefore unsafe.

Method used

Design a vacuum gauge tube breaking machine, comprising a base, clamps, a cutting worktable, a cutting wheel, and an electric heating device. The machine achieves the fixing and breaking process of the vacuum gauge tube through an automated slide rail and electric heating, avoiding manual operation.

Benefits of technology

It achieves a safe and automated breaking process, avoiding the risks of burns and fires, and improving the safety and convenience of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a kind of vacuum gauge pipe matched use device and breaking method, solve the existing breaking method needs to be manually operated, and there is certain danger when using alcohol lamp, burn easily appears even in some special environment and causes fire, there is the risk of being cut when breaking, etc.The vacuum gauge pipe breaking machine provided in the present application includes base, and first clamp, second clamp installed on the base;Second clamp outside the base is provided with cutting workbench, and the cutting workbench is installed on the base by sliding block and sliding rail;Cutting workbench is installed with cutting grinding wheel and heating end by mounting bracket, and heating end is divided into first heating end and second heating end from inside to outside;First heating end is provided with pipe breaking hole penetrating through outer wall along radial direction at conical hole.
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Description

Technical Field

[0001] This invention relates to a device for using a vacuum gauge tube and a method for breaking it, specifically to a vacuum gauge tube breaking machine and its usage. Background Technology

[0002] Vacuum gauges are vacuum-packed before use, and their interiors have a certain degree of vacuum. Before using a vacuum gauge, it is necessary to break the vacuum seal.

[0003] Currently, the most common method for breaking the tube is to first sinter the front end of the vacuum gauge tube with an alcohol lamp to soften it before breaking it, and then cut it or crush the end with pliers before sintering.

[0004] The existing method of breaking open the opening requires manual operation, and there are certain dangers when using an alcohol lamp, which can easily cause burns or even fires in some special environments. There is also a risk of the user being cut during the breaking process. Summary of the Invention

[0005] The purpose of this invention is to address the problems of existing tube breaking methods, which require manual operation and pose certain dangers when using alcohol lamps, such as the risk of burns or even fires in certain environments, as well as the risk of cuts to the user during breaking. The invention provides a vacuum tube breaking machine and a method for using the vacuum tube breaking machine.

[0006] To achieve the above-mentioned objectives, the technical solution provided by this invention is as follows:

[0007] A vacuum gauge tube breaking machine is characterized by including a base, and a first clamp and a second clamp mounted on the base, the first clamp and the second clamp being used to hold the vacuum gauge tube to be broken;

[0008] A cutting worktable is provided on the base outside the second fixture. The cutting worktable is mounted on the base via a slider and a slide rail.

[0009] The cutting worktable is equipped with a cutting grinding wheel and a heating end via a mounting bracket.

[0010] The first clamp, the second clamp, the cutting wheel, and the heating end are arranged sequentially in the same direction;

[0011] The heating end is provided with a stepped through hole in the middle. The stepped through hole consists of a cylindrical large hole, a truncated cone hole and a cylindrical small hole connected in sequence from the inside to the outside. The inner wall of the cylindrical large hole and the outer wall of the straight pipe section at the front of the vacuum gauge tube to be broken are kept in a gap. The shape of the truncated cone hole is compatible with the conical end at the front end of the vacuum gauge tube to be broken.

[0012] The heating end is divided into a first heating end and a second heating end from the inside out. Electric heating devices are respectively installed in the first heating end and the second heating end. The two electric heating devices are connected to an external power source through wires.

[0013] The first heating end of the heating end has a radially penetrating opening through the outer wall at the truncated cone hole.

[0014] Furthermore, the heating end is divided into a first heating end and a second heating end along the large end section of the truncated cone hole from the inside out;

[0015] The first heating end of the heating end has a radially penetrating opening through the outer wall at the cross-section of the small hole of the truncated cone hole.

[0016] Furthermore, the gap between the inner wall of the cylindrical large hole and the outer wall of the straight pipe section at the front of the vacuum gauge tube to be broken is 0.8mm-1.5mm.

[0017] Furthermore, the number of rupture openings is 1-3 evenly distributed around the circumference.

[0018] Meanwhile, this invention also provides a method for using a vacuum gauge tube breaking machine, the special feature of which is:

[0019] Step 1: Place the vacuum gauge tube on the first and second clamps and clamp it, so that the cutting table slides along the slide rail on the base. Adjust the position of the cutting table so that the tapered end of the front end of the vacuum gauge tube is inside the second heating end of the heating end, and the outer wall of the tapered end is 0.8mm-1.5mm away from the inner wall of the second heating end. Then fix the position of the cutting table.

[0020] Step 2: Turn on the second heating end to heat the tapered end of the vacuum gauge tube. The heating temperature is controlled between 300℃ and 500℃. After the tapered end of the vacuum gauge tube softens, insert a rupture needle through the rupture opening to rupture the tapered end of the vacuum gauge tube and break the vacuum inside the vacuum gauge tube. Then, stop the second heating end from heating the tapered end of the vacuum gauge tube.

[0021] Step 3: Adjust the position of the vacuum gauge tube and the cutting wheel so that the straight section at the front of the gauge tube is on the cutting table. Use the cutting wheel to cut the straight section at the front of the vacuum gauge tube to form a gauge tube cut. Then reset the cutting wheel and adjust the position of the cutting table to remove the cut section from the heating end.

[0022] Step 4: Slide the cutting table along the slide rail on the base again and adjust its position so that the gauge cut at the front end of the straight pipe section is inside the first heating end of the heating end. The gap between the outer wall of the straight pipe section and the inner wall of the heating end is 0.8mm-1.5mm. Turn on the first heating end to heat the gauge cut, and control the heating temperature between 300℃ and 500℃. After the gauge cut softens, stop heating the first heating end to achieve sintering of the gauge cut. Finally, remove the vacuum gauge to complete the breaking of the vacuum gauge.

[0023] Furthermore, in steps 2 and 4, the heating temperature is controlled between 380℃ and 430℃.

[0024] Furthermore, in step 3, the step of removing the cut segment from the heating end of the vacuum tube specifically involves using a tool to push the cut segment backward through the cylindrical hole of the stepped through hole on the heating end of the vacuum tube.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) In the process of using this invention, the vacuum gauge tube is fixed on the first clamp and the second clamp, and its sintering and cutting process can be completed automatically by the slide rail, which can avoid causing injury to personnel.

[0027] (2) In this invention, electric heating is used instead of the currently used alcohol sintering method, which has a higher safety factor, avoids the risk of burns and fires in some special environments, and produces no combustion pollution.

[0028] (3) The method of using the present invention is simple, clear and easy to understand, and is suitable for widespread use. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the usage state structure of a vacuum gauge tube breaking machine according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the heating end structure in an embodiment of a vacuum gauge tube breaking machine of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the vacuum gauge tube to be broken in an embodiment of the method of using a vacuum gauge tube breaking machine according to the present invention.

[0032] The specific reference numerals in the attached figures are as follows:

[0033] 1. Vacuum gauge tube; 11. Straight pipe section; 12. Conical end; 2. First clamp; 3. Second clamp; 4. Cutting table; 41. Grinding wheel; 5. Heating end; 51. First heating end; 52. Second heating end; 53. Pipe opening; 6. Base. Detailed Implementation

[0034] To make the technical solution of the present invention clearer, the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 As shown, the present invention provides a vacuum gauge tube breaking machine, including a base 6, and a first clamp 2 and a second clamp 3 mounted on the base 6. The first clamp 2 and the second clamp 3 are used to hold the vacuum gauge tube 1 to be broken.

[0036] A cutting worktable 4 is provided on the base 6 on the outer side of the second clamp 3. The cutting worktable 4 is installed on the base 6 by a slider and a slide rail.

[0037] A cutting wheel 41 and a heating end 5 are mounted on the cutting worktable 4 via a mounting bracket, and the first clamp 2, the second clamp 3, the cutting wheel 41 and the heating end 5 are arranged sequentially in the same direction.

[0038] like Figure 2 As shown, a stepped through hole is provided in the middle of the heating end 5. This stepped through hole consists of a large cylindrical hole, a frustum-shaped conical hole, and a small cylindrical hole connected sequentially from the inside out. The inner wall of the large cylindrical hole and... Figure 3 The gap between the outer walls of the straight section 11 at the front of the vacuum gauge tube 1 to be broken, as shown, is 0.8mm-1.5mm to prevent the gauge tube from sticking to the inner wall of the heating end after softening at high temperature. The shape of the truncated cone hole and... Figure 3 The shape of the tapered end 12 at the front end of the vacuum gauge tube 1 to be broken is adapted to the shape shown.

[0039] The heating end 5 is divided into a first heating end 51 and a second heating end 52 along the large end section of the truncated cone hole from the inside out. Electric heating devices are respectively installed in the first heating end 51 and the second heating end 52. The two electric heating devices are connected to an external power source through wires and are used to heat the vacuum gauge tube 1.

[0040] The first heating end 51 of the heating end 5 has a rupture port 53 that penetrates the outer wall radially at the small hole section of the truncated cone hole, which is used to rupture the vacuum gauge tube 1.

[0041] The specific method of using the vacuum tube breaking machine described above is as follows:

[0042] Step 1: Place the vacuum gauge tube 1 on the first clamp 2 and the second clamp 3 and clamp it, so that the cutting table 4 slides on the base 6 along the slide rail. Adjust the position of the cutting table 4 so that the tapered end 12 of the front end of the vacuum gauge tube 1 is located in the stepped through hole in the second heating end 52 of the heating end 5. The outer wall of the tapered section 12 and the inner wall of the heating end 52 maintain a gap of 0.8mm-1.5mm. Then fix the position of the cutting table 4.

[0043] Step 2: Turn on the second heating end 52 to heat the tapered end 12 at the front end of the vacuum gauge tube 1. The heating temperature is controlled between 380℃ and 430℃. After the tapered end 12 at the front end of the vacuum gauge tube 1 softens, insert a piercing needle through the piercing port 53 to pierce the tapered end 12 of the vacuum gauge tube 1, thereby breaking the vacuum inside the vacuum gauge tube 1. Then, stop the second heating end 52 from heating the tapered end 12 at the front end of the vacuum gauge tube 1.

[0044] Step 3: Adjust the position of the vacuum gauge tube 1 and the cutting wheel 41 so that the straight tube section 11 at the front of the gauge tube is located on the cutting table 4. Use the cutting wheel 41 to cut the straight tube section 11 at the front of the vacuum gauge tube 1 to form a gauge tube cutting opening. Then reset the cutting wheel 41 and adjust the position of the cutting table 4. Take out the cut section from the heating end 5. Specifically, use a tool to push the cut section backward from the front end of the cylindrical small hole of the stepped through hole on the heating end 5 of the vacuum tube.

[0045] Step 4: Slide the cutting table 4 along the slide rail on the base 6 again, and adjust the position of the cutting table 4 so that the gauge cut at the front end of the straight pipe section 11 is located inside the first heating end 51 of the heating end 5. The outer wall of the straight pipe section 11 and the inner wall of the heating end 51 maintain a gap of 0.8mm-1.5mm. Turn on the first heating end 51 to heat the gauge cut, and control the heating temperature between 380℃ and 430℃. After the gauge cut softens, stop heating the first heating end 51 to achieve sintering of the gauge cut. Finally, take out the vacuum gauge 1 to complete the breaking of the vacuum gauge 1.

Claims

1. A method of using a vacuum gauge tube breaking machine, comprising a base (6) and a first clamp (2) and a second clamp (3) mounted on the base (6), wherein the first clamp (2) and the second clamp (3) are used to hold the vacuum gauge tube (1) to be broken. The second clamp (3) has a cutting worktable (4) on the base (6) on the outside. The cutting worktable (4) is installed on the base (6) by a slider and a slide rail. The cutting workbench (4) is equipped with a cutting grinding wheel (41) and a heating end (5) by means of a mounting bracket. The first clamp (2), the second clamp (3), the cutting grinding wheel (41), and the heating end (5) are arranged sequentially in the same direction; The heating end (5) is provided with a stepped through hole in the middle. The stepped through hole consists of a cylindrical large hole, a truncated cone hole and a cylindrical small hole connected in sequence from the inside to the outside. The inner wall of the cylindrical large hole and the outer wall of the straight pipe section (11) at the front of the vacuum gauge tube (1) to be broken are kept in a gap. The shape of the truncated cone hole is adapted to the shape of the tapered end (12) at the front end of the vacuum gauge tube (1) to be broken. The heating end (5) is divided into a first heating end (51) and a second heating end (52) from the inside out. Electric heating devices are respectively installed in the first heating end (51) and the second heating end (52). The two electric heating devices are connected to an external power source through wires. The first heating end (51) of the heating end (5) has a radially penetrating opening (53) through the outer wall at the truncated cone hole; characterized in that, Includes the following steps: Step 1: Place the vacuum gauge tube (1) on the first clamp (2) and the second clamp (3) and clamp it, so that the cutting table (4) slides on the base (6) along the slide rail. Adjust the position of the cutting table (4) so ​​that the tapered end (12) at the front end of the vacuum gauge tube (1) is located inside the second heating end (52) of the heating end (5). The outer wall of the tapered end (12) and the inner wall of the second heating end (52) are kept at a distance of 0.8mm-1.5mm. Then fix the position of the cutting table (4). Step 2: Turn on the second heating end (52) to heat the tapered end (12) at the front end of the vacuum gauge tube (1). The heating temperature is controlled between 300℃ and 500℃. After the tapered end (12) at the front end of the vacuum gauge tube (1) softens, insert a piercing needle from the piercing opening (53) to pierce the tapered end (12) of the vacuum gauge tube (1) and destroy the vacuum inside the vacuum gauge tube (1). Then stop the second heating end (52) from heating the tapered end (12) at the front end of the vacuum gauge tube (1). Step 3: Adjust the position of the vacuum gauge tube (1) and the cutting wheel (41) so that the straight section (11) at the front of the gauge tube is on the cutting table (4). Use the cutting wheel (41) to cut the straight section (11) at the front of the vacuum gauge tube (1) to form a gauge tube cutting opening. Then reset the cutting wheel (41) and adjust the position of the cutting table (4) to remove the cut section from the heating end (5). Step 4: Slide the cutting table (4) along the slide rail on the base (6) again, adjust the position of the cutting table (4) so ​​that the gauge cut at the front end of the straight pipe section (11) is located inside the first heating end (51) of the heating end (5), and the gap between the outer wall of the straight pipe section (11) and the inner wall of the first heating end (51) is 0.8mm-1.5mm; turn on the first heating end (51) to heat the gauge cut, and control the heating temperature between 300℃ and 500℃. After the gauge cut softens, stop heating the first heating end (51) to achieve sintering of the gauge cut. Finally, take out the vacuum gauge (1) to complete the breaking of the vacuum gauge (1).

2. The method of using a vacuum tube breaking machine according to claim 1, characterized in that: In steps 2 and 4, the heating temperature is controlled between 380℃ and 430℃.

3. The method of using a vacuum tube breaking machine according to claim 2, characterized in that: In step 3, the step of removing the cutting segment from the heating end (5) specifically involves using a tool to push the cutting segment backward from the front end of the cylindrical small hole of the stepped through hole on the heating end (5).

4. The method of using a vacuum tube breaking machine according to claim 3, characterized in that: The heating end (5) is divided into a first heating end (51) and a second heating end (52) from the inside out along the large end section of the truncated cone hole. The first heating end (51) of the heating end (5) has a rupture opening (53) that penetrates the outer wall radially at the small hole section of the truncated cone hole.

5. The method of using a vacuum tube breaking machine according to claim 4, characterized in that: The gap between the inner wall of the cylindrical large hole and the outer wall of the straight pipe section (11) at the front of the vacuum gauge tube (1) to be broken is 0.8mm-1.5mm.

6. The method of using a vacuum tube breaking machine according to claim 5, characterized in that: The rupture opening (53) has 1-3 openings evenly distributed on the circumference.

Citation Information

Patent Citations

  • Clipping device for pipes

    CN106217467A

  • Mechanical cutting device for glass tube processing

    CN109095761A

  • Vacuum gauge tube breaking machine

    CN216849838U