A tunnel steel arch precision cutting and positioning frame

Abstract

The invention discloses a tunnel steel arch frame precision cutting positioning frame, which comprises a first positioning structure sleeved on an I-beam, a second positioning structure connected to the first positioning structure and sleeved on the I-beam is provided on one side of the first positioning structure, and a plasma cutter is provided in the second positioning structure. The invention has the effects of improving processing quality and portability.

Description

Technical Field

[0001] The invention relates to the field of material cutting auxiliary tools, and in particular to a tunnel steel arch frame precision cutting and positioning frame. Background Art

[0002] In the process of cutting steel arches, in order to ensure that the cuts are flush, the usual practice is to draw lines before cutting and then cut manually, which places high demands on the workers' processing level. If the workers' hands shake during the cutting process, the cut surface will be distorted or burrs will be produced, which will affect the quality of subsequent connecting plate welding and make it difficult to ensure the overall quality of the project. Therefore, it is necessary to develop a fixed and portable fixture that makes the cutting tool perpendicular to the end face of the material, and manual operation can solve the defects of the above manual operation. Summary of the invention

[0003] In view of the above problems, an object of the present invention is to provide a tunnel steel arch frame precision cutting and positioning frame with improved processing quality and portability.

[0004] To achieve the above-mentioned purpose, the present invention provides a tunnel steel arch frame precision cutting and positioning frame, which includes a first positioning structure clamped on an I-beam, a second positioning structure connected to the first positioning structure and clamped on the I-beam is provided on one side of the first positioning structure, and a plasma cutter is provided in the second positioning structure. The first positioning structure includes a first clamping plate clamped on both sides of the I-beam, a second clamping plate parallel to the first clamping plate and clamped on both sides of the I-beam is provided on one side of the first clamping plate, and a connecting plate connecting the first clamping plate and the second clamping plate is provided between the first clamping plate and the second clamping plate. The second positioning structure includes a first insert plate on one side of the second clamping plate and inserted on both sides of the I-beam, a second insert plate parallel to the first insert plate and inserted on both sides of the I-beam, a first connecting steel bar and a second connecting steel bar respectively provided between the two sides of the first insert plate and the second insert plate, a first limiting angle steel and a second limiting angle steel respectively extending downward and cooperating with each other to clamp the two sides of the I-beam on the first connecting steel bar and the second connecting steel bar on both sides of the I-beam, a third limiting angle steel pressing down the bottom surface of the I-beam on the side of the first insert plate, and a fourth limiting angle steel pressing down the bottom surface of the I-beam on the side of the second insert plate opposite to the first insert plate. The plasma cutter is arranged between the third limiting angle steel and the fourth limiting angle steel. The range between the third limiting angle steel and the fourth limiting angle steel constitutes the working area of ​​the plasma cutter.

[0005] In some embodiments, the plasma cutter includes a fixed sleeve provided between the third limiting angle steel and the fourth limiting angle steel, a first rotating shaft and a second rotating shaft provided on both sides of the fixed sleeve respectively, a first running wheel provided on the first rotating shaft and sliding close to the side of the third limiting angle steel, a second running wheel provided on the second rotating shaft and sliding close to the side of the fourth limiting angle steel, a cutting head provided on the fixed sleeve and extending downward to contact the bottom surface of the I-beam, a connecting fixed end provided on the top of the fixed sleeve, and a portable rod provided on the connecting fixed end.

[0006] In some embodiments, the carrying bar is an L-shaped carrying bar.

[0007] In some embodiments, the first clamping plate and the second clamping plate are both U-shaped clamping frames.

[0008] In some embodiments, the first plug-in plate includes a first fixing plate fixedly connected to the second clamping plate, and first slots for clamping into the two sides of the I-beam are respectively provided on both sides of the first fixing plate. The second plug-in plate includes a second fixing plate whose two ends are respectively connected to the ends of the first connecting steel bar and the second connecting steel bar, and second slots for clamping into the two sides of the I-beam are respectively provided on both sides of the second fixing plate.

[0009] In some embodiments, two first limiting angle steels and two second limiting angle steels are respectively provided on the first connecting steel bar and the second connecting steel bar.

[0010] In some embodiments, the first limiting angle steel, the second limiting angle steel, the third limiting angle steel, and the fourth limiting angle steel are all triangular corner blocks.

[0011] The beneficial effects of the present invention are that it has the effects of improving processing quality and portability. After the first positioning structure and the second positioning structure are clamped on both sides of the I-beam, the range between the third limiting angle steel and the fourth limiting angle steel constitutes the working area for cutting by the plasma cutter, and provides a walking path for the first walking wheel and the second walking wheel on the plasma cutter when in use, thereby avoiding the problem that the cutting surfaces are not in the same plane when cutting the I-beam, which affects the subsequent welding quality of the connecting plate, thereby achieving the effect of improving processing quality. In addition, since the first positioning structure and the second positioning structure are integrally connected and can be carried separately from the plasma cutter, it is more convenient for outdoor processing, achieving a portable effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is a side view structural schematic diagram of the present invention;

[0014] Figure 3 It is a schematic diagram of the top structure of the present invention. DETAILED DESCRIPTION

[0015] The invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1-3 As shown, a tunnel steel arch frame precision cutting and positioning frame includes a first positioning structure 02 clamped on an I-beam 01, a second positioning structure 03 connected to the first positioning structure 02 and clamped on the I-beam 01 is provided on one side of the first positioning structure 02, and a plasma cutter 04 is provided in the second positioning structure 03. The first positioning structure 02 includes a first clamping plate 21 clamped on both sides of the I-beam 01, a second clamping plate 22 parallel to the first clamping plate 21 and clamped on both sides of the I-beam 01 is provided on one side of the first clamping plate 21, and a connecting plate 23 connecting the first clamping plate 21 and the second clamping plate 22 is provided between the first clamping plate 21 and the second clamping plate 22. The second positioning structure 03 includes a first insert plate 31 inserted on both sides of the I-beam 01 on one side of the second clamping plate 22, a second insert plate 32 parallel to the first insert plate 31 and inserted on both sides of the I-beam 01 on one side of the first insert plate 31, a first connecting steel bar 33 and a second connecting steel bar 34 respectively provided between both sides of the first insert plate 31 and the second insert plate 32, a first limiting angle steel 35 and a second limiting angle steel 36 extending downward and mutually clamping both sides of the I-beam 01 are respectively provided on the first connecting steel bar 33 and the second connecting steel bar 34 on both sides of the I-beam 01, a third limiting angle steel 37 pressing down the bottom surface of the I-beam 01 is provided on the side of the first insert plate 31, and a fourth limiting angle steel 38 pressing down the bottom surface of the I-beam 01 is provided on the side of the second insert plate 32 opposite to the first insert plate 31. The plasma cutter 04 is arranged between the third limiting angle steel 37 and the fourth limiting angle steel 38. The range between the third limiting angle steel 37 and the fourth limiting angle steel 38 constitutes a working area for cutting by the plasma cutter 04 .

[0017] The plasma cutter 04 includes a fixed sleeve 41 provided between the third limiting angle steel 37 and the fourth limiting angle steel 38, a first rotating shaft 42 and a second rotating shaft 43 provided on both sides of the fixed sleeve 41, a first running wheel 44 sliding close to the side of the third limiting angle steel 37 provided on the first rotating shaft, a second running wheel 45 sliding close to the side of the fourth limiting angle steel 38 provided on the second rotating shaft, a cutting head 46 extending downward and contacting the bottom surface of the I-beam 01 provided on the fixed sleeve 41, and a connecting fixed end 47 provided on the top of the fixed sleeve 41 and a portable rod 48 provided on the connecting fixed end 47. The portable rod 48 is an L-shaped lifting rod. The first clamping plate 21 and the second clamping plate 22 are both U-shaped clamping frames. The first plug-in plate 31 includes a first fixed plate fixedly connected to the second clamping plate 22, and first card slots for clamping into the two sides of the I-beam 01 are provided on both sides of the first fixed plate. The second plug-in plate 32 includes a second fixing plate whose two ends are respectively connected to the ends of the first connecting steel bar 33 and the second connecting steel bar 34, and second clamping grooves are respectively provided on both sides of the second fixing plate to clamp into the two sides of the I-beam 01. Two first limiting angle steels 35 and two second limiting angle steels 36 are respectively provided on the first connecting steel bar 33 and the second connecting steel bar 34. The first limiting angle steel 35, the second limiting angle steel 36, the third limiting angle steel 37 and the fourth limiting angle steel 38 are all triangular corner blocks.

[0018] When used, the first positioning structure 02 and the second positioning structure 03 are clamped on both sides of the I-beam 01, and the range between the third limiting angle steel 37 and the fourth limiting angle steel 38 constitutes the working area for the plasma cutter 04 to cut. The processing process provides a walking path for the first walking wheel 44 and the second walking wheel 45 on the plasma cutter 04, avoiding the problem that the cutting surfaces are not in the same plane when cutting the I-beam 01, which affects the welding quality of the subsequent connecting plate 23, thereby improving the processing quality. The first positioning structure 02 and the second positioning structure 03 are connected as a whole, and are carried separately from the plasma cutter 04, which is more convenient for outdoor processing and achieves a portable effect.

Claims

1. A tunnel steel arch precision cutting and positioning frame, characterized in that: It comprises a first positioning structure sleeved on the I-beam, a second positioning structure connected to the first positioning structure and sleeved on the I-beam is provided on one side of the first positioning structure, and a plasma cutter is provided in the second positioning structure; The first positioning structure comprises a first clamping plate clamped on both sides of the I-beam, a second clamping plate parallel to the first clamping plate and clamped on both sides of the I-beam is provided on one side of the first clamping plate, and a connecting plate connecting the first clamping plate and the second clamping plate is provided between the first clamping plate and the second clamping plate; The second positioning structure includes a first insert plate provided on one side of the second clamping plate and inserted on both sides of the I-beam, a second insert plate provided on one side of the first insert plate and parallel to the first insert plate and inserted on both sides of the I-beam, a first connecting steel bar and a second connecting steel bar provided respectively on both sides of the first insert plate and between the second insert plate, a first limiting angle steel and a second limiting angle steel extending downward and cooperating with each other to clamp both sides of the I-beam are provided on the first connecting steel bar and the second connecting steel bar on both sides of the I-beam, a third limiting angle steel is provided on the side of the first insert plate to press down the bottom surface of the I-beam, and a fourth limiting angle steel is provided on the side of the second insert plate opposite to the first insert plate to press down the bottom surface of the I-beam; The plasma cutter is arranged between the third limiting angle steel and the fourth limiting angle steel.

2. The tunnel steel arch precision cutting and positioning frame according to claim 1 is characterized in that: The plasma cutter includes a fixed sleeve provided between the third limiting angle steel and the fourth limiting angle steel, a first rotating shaft and a second rotating shaft provided on both sides of the fixed sleeve respectively, a first running wheel provided on the first rotating shaft and sliding close to the side of the third limiting angle steel, a second running wheel provided on the second rotating shaft and sliding close to the side of the fourth limiting angle steel, a cutting head provided on the fixed sleeve and extending downward to contact the bottom surface of the I-beam, a connecting fixed end provided on the top of the fixed sleeve, and a portable rod provided on the connecting fixed end.

3. The tunnel steel arch precision cutting and positioning frame according to claim 2 is characterized in that: The portable rod is an L-shaped handle.

4. The tunnel steel arch precision cutting and positioning frame according to claim 1 is characterized in that: The first clamping plate and the second clamping plate are both U-shaped clamping frames.

5. The tunnel steel arch precision cutting and positioning frame according to claim 1, characterized in that: The first plug-in plate comprises a first fixing plate fixedly connected to the second clamping plate, and first clamping grooves for clamping into two sides of the I-beam are respectively provided on both sides of the first fixing plate; The second plug-in plate comprises a second fixing plate whose two ends are respectively connected to the ends of the first connecting steel bar and the second connecting steel bar, and second clamping grooves are respectively provided on both sides of the second fixing plate to clamp into the two sides of the I-beam.

6. The tunnel steel arch precision cutting and positioning frame according to claim 1, characterized in that: Two first limiting angle steels and two second limiting angle steels are respectively provided on the first connecting steel bars and the second connecting steel bars.

7. The tunnel steel arch precision cutting and positioning frame according to claim 6, characterized in that: The first limiting angle steel, the second limiting angle steel, the third limiting angle steel and the fourth limiting angle steel are all triangular corner blocks.

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