CN214747715U

CN214747715U - Steel pipe angle calibrator

Info

Publication number: CN214747715U
Application number: CN202120805969.1U
Authority: CN
Inventors: 林卓文; 冼宇坚; 梁华; 汤国斌
Original assignee: Guangzhou Traffic Technician College Guangzhou Traffic Senior Technician School
Current assignee: Guangzhou Traffic Technician College Guangzhou Traffic Senior Technician School
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-11-16
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a steel pipe angle calibrator, which comprises a quick-release bracket assembly and a calibration disc assembly; the quick-release bracket assembly comprises a first base, a second base, a base positioning pin, a first base bayonet lock buckle, a second base bayonet lock buckle, a movable pin, an eccentric buckle, an outer hexagon bolt and a nut; the first base and the second base are fixedly connected through base positioning pins; the first base bayonet catch is inserted into the eccentric buckle to be close to the slotted hole; the outer hexagon bolt is inserted into a center hole of the second base bayonet lock buckle through an eccentric buckle slotted hole; the calibration disc assembly comprises a calibration seat, a calibration angle disc, a zero setting pointer, a horizontal bead, a horizontal table clamp, a protractor, a spring and a bolt; the calibration base, the angle gauge and the horizontal table clamp are arranged on the calibration angle scale and are respectively and fixedly connected with the calibration angle scale through bolts; the zero setting pointer is arranged on the calibration seat.

Description

Steel pipe angle calibrator

Technical Field

The utility model relates to a calibrating instrument especially relates to a steel pipe angle calibrator.

Background

In order to prevent and solve the problem that the overall structure deformation caused by later welding is caused by the matching error generated in the process of developing materials (hereinafter, cutting) of round pipe structures such as steel pipe lathes and steel pipe frames. At present, no related product can solve the error problem caused by the cutting.

The steel pipe cutting operation mentioned above is the following scene (1) opening a connection port; (2) and (5) bending the pipe.

The following operations are common in the market for opening and closing ports:

a manual grinding method (the defects of low efficiency, difficult operation, low precision and full dependence on hand feeling and technology);

secondly, a laser cutting method (the defects that equipment is expensive and occupies large area);

and thirdly, manually polishing the paster (with the defects of low efficiency, high consumption of the paster, difficult operation and complicated operation).

Pipe bending operation the following methods are commonly used in the market for multi-section pipe bending of steel pipes:

the traditional mechanical, hydraulic and motor driven elbow pipe (the defect that no precision guarantee exists);

secondly, numerical control of the bent pipe (the defects of high price and large occupied area).

When the steel pipe is machined through the above-mentioned operations to reach a target machining angle, the situation of deviation from the original design is relatively more due to failure of calibration, so that the machining error is large.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at providing a steel pipe angle calibrator, this etalon provide the measuring instrument of technical measurement foundation at the cutting process for tubular beams structures such as production pipe roof beam structure, steel pipe car.

The purpose of the utility model is realized through the following technical scheme:

a steel pipe angle calibrator comprises a quick-release bracket assembly 1 and a calibration disc assembly 2; the quick-release bracket assembly 1 comprises a first base 3, a second base 4, a base positioning pin 5, a first base bayonet lock buckle 6, a second base bayonet lock buckle 7, a movable pin, an eccentric buckle 8, an outer hexagon bolt 9 and a nut 10; the first base 3 and the second base 4 are fixedly connected through a base positioning pin 5; the first base bayonet lock 6 is inserted into the eccentric buckle to be close to the slotted hole; the outer hexagon bolt 9 is inserted into a center hole of the second base bayonet catch 7 through an eccentric buckle slotted hole;

the calibration disc assembly 2 comprises a calibration seat 11, a calibration angle disc 12, a zero setting pointer 13, a horizontal bead 14, a horizontal table clamp 15, a protractor 16, a spring 17 and a bolt 18; the calibration base 11, the angle gauge 16 and the horizontal table clamp 15 are arranged on the calibration angle scale 12 and are fixedly connected with the calibration angle scale 12 through bolts 18 respectively; the zero setting pointer 13 is arranged on the calibration base 11.

Compared with the prior art, the utility model discloses an advantage can have as follows to one or more embodiments:

the method has the advantages of high measurement precision, simple operation, low price, strong practicability and wide application range; is particularly suitable for individuals or workshops with less production batch and limited manufacturing expenditure.

Drawings

FIG. 1 is a schematic structural diagram of a steel pipe angle calibrator;

FIG. 2 is a schematic view of a quick release bracket assembly;

FIG. 3 is a schematic view of a calibration disk assembly;

FIG. 4 is a schematic view of a structural principle that a steel pipe angle calibrator level plane and a plane formed by the center line of a steel pipe to be cut are parallel to each other;

fig. 5a, 5b and 5c are schematic views of a steel pipe joint and a corner of an elbow.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

As shown in fig. 1, the overall structure of the steel tube angle calibrator includes a quick-release bracket assembly 1 and a calibration disc assembly 2; the quick-release bracket assembly 1 comprises a first base 3, a second base 4, a base positioning pin 5, a first base bayonet lock buckle 6, a second base bayonet lock buckle 7, a movable pin, an eccentric buckle 8, an outer hexagon bolt 9 and a nut 10; the first base 3 and the second base 4 are fixedly connected through a base positioning pin 5; the first base bayonet lock 6 is inserted into the eccentric buckle to be close to the slotted hole; the outer hexagon bolt 9 is inserted into a central hole of the second base bayonet catch 7 through an eccentric buckle slotted hole (shown in figure 2);

the calibration disc assembly 2 comprises a calibration seat 11, a calibration angle disc 12, a zero setting pointer 13, a horizontal bead 14, a horizontal table clamp 15, a protractor 16, a spring 17 and a bolt 18; the calibration base 11, the angle gauge 16 and the horizontal table clamp 15 are arranged on the calibration angle scale 12 and are fixedly connected with the calibration angle scale 12 through bolts 18 respectively; the zero setting pointer 13 is placed on the calibration stand 11 (shown in fig. 3).

The nut is screwed on an outer hexagon bolt inserted into a center hole of the second base bayonet lock buckle through the eccentric buckle slotted hole. The calibration seat is provided with a slide rail groove, and the zero setting pointer is inserted into the slide rail groove of the calibration seat and fixed through a bolt. The two horizontal table clamps are respectively a first horizontal table clamp and a second horizontal table clamp; the first horizontal table clamp is fixed at a horizontal table above the calibration angle scale; the second horizontal table clamp is arranged in the first horizontal table clamp, and a spring is arranged in the second horizontal table clamp. And the horizontal bead is attached to a horizontal table for calibrating the angle scale.

As shown in FIG. 4, the calibration is realized by utilizing the principle that the level plane on the steel pipe angle calibrator is parallel to the plane formed by the central line of the steel pipe to be cut.

Mounting before use:

(1) firstly, assembling an angle gauge support assembly, connecting two fixing pins above the quick-release support assembly with two grooves of a calibration disc assembly to form connecting and positioning, and finally completing fastening by two common bolts. (2) Assembling horizontal beads: loosening a hand-screwed bolt in the middle of the first horizontal table clamp, clamping a horizontal bead in the middle of the horizontal table, then automatically attaching the horizontal bead to the plane of the horizontal table, and screwing the hand-screwed bolt to finish fixing; if the horizontal bead cannot automatically approach the plane of the horizontal table after being mounted, whether the inclined plane of the second horizontal clamp is reversely mounted needs to be checked. (3) Mechanical zero setting: horizontally fixing a straight steel pipe (placing a horizontal bead above the steel pipe), installing the steel pipe on the steel pipe angle calibrator (screwing the steel pipe to a position suitable for the steel pipe by using a hand-screwed nut, and completely fixing by using an eccentric buckle), then loosening the hand-screwed bolt behind the zero setting pointer, adjusting the zero setting pointer to a zero scale line of the protractor, and tightening the hand-screwed bolt after confirming that zero setting is completed. (4) Horizontal adjustment of the pipe bender/lapel machine: the horizontal bead is placed on a clamp of the pipe bender/lapel machine, and the horizontal bead is adjusted to be centered with respect to the air bubble.

The using method comprises the following steps:

the key to the use of the steel pipe angle calibrator is the presence of two or more ports or elbow corners in a pipe (see fig. 5a, 5b, 5c), and this is caused by the different planes of the tubular structures.

The use method of the material cutting of the connecting port comprises the following steps:

(1) confirming the calibration angle of the steel pipe before calibration, wherein the angle is as follows: the direction of the connecting port which is cut or the central line of the other end of the bent steel pipe forms an included angle with the direction of the connecting port to be cut and the horizontal plane formed by the steel pipe.

(2) And adjusting the calibration angle scale to a pointer alignment target calibration angle.

(3) Clamping a steel pipe angle calibrator to a bent straight pipe part of a pipe fitting (a staggered different-surface connecting port needs to be clamped on a steel pipe with the same diameter as the opened connecting port), and paying attention to check whether the steel pipe is reversely arranged (when the steel pipe is accurately installed, a horizontal table of a calibration angle scale is parallel to the ground);

(4) the pipe fitting of waiting to open the material is adjusted to the level bench of calibration angle scale bubble central in the limit is rotatory simultaneously.

(5) And fixing the pipe fitting to be cut after the determination, removing the steel pipe angle calibrator, and starting cutting.

The use method of the bent pipe cutting (for bending 2 or 2 bent pipe angles in the same pipe by using a pipe bender) comprises the following steps:

(1) confirming the calibration angle of the steel pipe before calibration, wherein the angle is as follows: the center line of the other end of the bent steel pipe forms an included angle with the direction of the pipe to be bent and a horizontal plane formed by the steel pipe;

(3) Clamping the steel tube angle calibrator to the bent straight tube part of the pipe fitting, and paying attention to check whether the pipe fitting is reversely installed (when the pipe fitting is accurately installed, a horizontal table for calibrating an angle scale is parallel to the ground);

(4) adjusting the pipe fitting to be cut while rotating, and adjusting to be centered by the bubbles of the horizontal beads on the horizontal table of the calibration angle scale;

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The steel pipe angle calibrator is characterized by comprising a quick-release bracket assembly (1) and a calibration disc assembly (2); the quick-release support assembly (1) comprises a first base (3), a second base (4), a base positioning pin (5), a first base bayonet lock buckle (6), a second base bayonet lock buckle (7), a movable pin, an eccentric buckle (8), an outer hexagon bolt (9) and a nut (10); the first base (3) and the second base (4) are fixedly connected through a base positioning pin (5); the first base bayonet lock buckle (6) is inserted into the eccentric buckle to be close to the slotted hole; the outer hexagon bolt (9) is inserted into a center hole of the second base bayonet lock buckle (7) through an eccentric buckle slotted hole;

the calibration disc assembly (2) comprises a calibration seat (11), a calibration angle disc (12), a zero setting pointer (13), a horizontal bead (14), a horizontal table clamp (15), an angle gauge (16), a spring (17) and a bolt (18); the calibration base (11), the angle measuring device (16) and the horizontal table clamp (15) are arranged on the calibration angle scale (12) and are fixedly connected with the calibration angle scale (12) through bolts (18) respectively; the zero setting pointer (13) is arranged on the calibration seat (11).

2. The steel pipe angle calibrator according to claim 1, wherein the nut (10) is inserted through an eccentric snap slotted hole into an outer hex bolt (9) of the center hole of the second base bayonet catch (7).

3. The steel pipe angle calibrator according to claim 1, wherein the calibration base is provided with a rail groove, and the zero setting pointer (13) is inserted into the rail groove of the calibration base and fixed by a bolt.

4. The steel pipe angle calibrator according to claim 1, wherein the horizontal stage clamps (15) comprise two, a first horizontal stage clamp and a second horizontal stage clamp; the first horizontal table clamp is fixed at a horizontal table above the calibration angle scale; the second horizontal table clamp is arranged in the first horizontal table clamp, and a spring is arranged in the second horizontal table clamp.

5. The steel tube angle calibrator of claim 1, wherein the horizontal bead (14) is attached to a horizontal table that calibrates the angle scale (12).