CN211331417U - Non-radial hole drilling clamp for circular tube - Google Patents
Non-radial hole drilling clamp for circular tube Download PDFInfo
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- CN211331417U CN211331417U CN201921824096.8U CN201921824096U CN211331417U CN 211331417 U CN211331417 U CN 211331417U CN 201921824096 U CN201921824096 U CN 201921824096U CN 211331417 U CN211331417 U CN 211331417U
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Abstract
The utility model provides a non-radial hole drilling clamp for a circular tube, which comprises a first positioning piece and a second positioning piece, wherein two sides of the first positioning piece and two sides of the second positioning piece are respectively fixed on the circular tube through clamps; the inner sides of the first positioning piece and the second positioning piece are completely attached to the circular tube, positioning guide through holes with certain depths are formed in the outer sides of the first positioning piece and the second positioning piece, and the axes of the positioning guide through holes of the first positioning piece and the second positioning piece are overlapped; and a drill bush is embedded in the positioning guide through hole. The utility model has convenient installation, good drilling processing guidance, high positioning precision, safety and reliability; clamping once, drilling in batches, machining efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of the nonradial spot facing work technique of pipe and specifically relates to a nonradial spot facing work anchor clamps of pipe.
Background
China is a big bridge country and also a big steel country. Since the 20 th century, the bridge industry in China has developed rapidly, especially steel structure bridges are convenient to manufacture and install due to excellent performance, and are widely used in bridge construction in China, the use ratio is increased year by year, and correspondingly, the design and manufacture level of the steel structure bridges is continuously improved.
In the manufacturing and processing process of the steel structure bridge, the processing of the non-radial holes of the round pipes is always a difficult problem for technical personnel. Most steel pipes used in the bridge steel structure have large diameters, and the number of non-radial holes used for connection is large; and the steel pipe is large in size and difficult to position and clamp. At present, steel structure bridge processing enterprises all adopt the processing mode of manual marking and radial drilling. In the feeding process of the drill for machining the non-radial hole, the drill bears the reaction force of the pipe wall of the steel pipe, and the reaction force is not coincident with the feeding direction of the drill, so that the torque action is generated on the drill. The drill bit is easy to elastically deform under the action of torque, so that the feeding direction is deflected, and the position of a processing hole is changed. Excessive torque can even cause the drill bit to break. Therefore, the traditional method for machining the non-radial hole of the circular tube has the defects of poor guidance quality, low position precision, high drill bit loss rate, low machining efficiency and the like.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a pipe nonradial hole boring grab provides accurate location for the processing in nonradial hole.
A circular tube non-radial hole drilling clamp comprises a first positioning piece and a second positioning piece, wherein two sides of the first positioning piece and two sides of the second positioning piece are fixed on a circular tube through clamps respectively; the inner sides of the first positioning piece and the second positioning piece are completely attached to the circular tube, positioning guide through holes with certain depths are formed in the outer sides of the first positioning piece and the second positioning piece, and the axes of the positioning guide through holes of the first positioning piece and the second positioning piece are overlapped; and a drill bush is embedded in the positioning guide through hole.
Furthermore, first setting element with the protruding triangular prism shape that is in the second setting element outside, the plane A of first setting element outside triangular prism with the plane B of second setting element outside triangular prism is parallel, plane A with the last division of plane B is equipped with the positioning guide through-hole.
Furthermore, steps convenient for fixing the clamp are arranged on two sides of the first positioning piece and the second positioning piece.
The utility model has the advantages that: 1. the installation is convenient, the drilling processing guidance is good, the positioning precision is high, and the safety and the reliability are realized; 2. clamping once, drilling in batches, machining efficiency is high.
Drawings
FIG. 1 is a schematic view of an installation structure of a circular tube non-radial hole drilling fixture;
FIG. 2 is a schematic view of a first positioning member structure and an installation direction;
fig. 3 is a schematic view of a second positioning member structure and an installation direction.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
Example 1
A circular tube non-radial hole drilling fixture is shown in figures 1-3 and comprises a first positioning piece 4 and a second positioning piece 8, wherein the inner sides of the first positioning piece 4 and the second positioning piece 8 are completely attached to a circular tube 5, positioning guide through holes 11 with certain depths are formed in the outer sides of the first positioning piece 4 and the second positioning piece 8, and the axes of the positioning guide through holes of the first positioning piece and the second positioning piece coincide; a drill bushing is embedded in the positioning guide through hole 11, and a drill bit feeds along the drill bushing during drilling. Two sides of the first positioning piece 4 and two sides of the second positioning piece 8 are respectively fixed on a circular tube through a clamp 1; in order to facilitate fixing, steps are arranged on two sides of the first positioning piece and the second positioning piece.
The operation process of the non-radial through hole of the circular tube is as follows:
1. drawing an axial positioning line 2 and a circumferential positioning line 3 on the circular tube;
2. installing the first positioning piece and the second positioning piece on the circular tube according to the axial positioning line 2 and the circumferential positioning line 3;
3. drilling along the drill bushing in the positioning guide through hole on the first positioning piece;
4. and rotating the circular tube by 180 degrees along the axis direction, and drilling holes along the drill bushing in the positioning guide through hole on the second positioning piece.
Because the positioning guide through hole needs to have a certain depth for embedding the drill bushing, the positioning guide through hole of the first positioning piece needs to coincide with the axis of the positioning guide through hole of the second positioning piece. For this reason, the outer side protrusions of the first positioning member and the second positioning member are preferably triangular columns, the plane a of the outer triangular column of the first positioning member is parallel to the plane B of the outer triangular column of the second positioning member, and the planes a and B are provided with positioning guide through holes. The plane A and the plane B are only indicated by one plane of the outer triangular prism, so that the distinguishing is convenient. The plane A is parallel to the plane B, and the axes can be superposed as long as the positioning guide through holes are arranged perpendicular to the planes oppositely.
Finally, it should also be noted that the above list is only one specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (3)
1. A circular tube non-radial hole drilling clamp is characterized by comprising a first positioning piece and a second positioning piece, wherein two sides of the first positioning piece and two sides of the second positioning piece are respectively fixed on a circular tube through clamps;
the inner sides of the first positioning piece and the second positioning piece are completely attached to the circular tube, positioning guide through holes with certain depths are formed in the outer sides of the first positioning piece and the second positioning piece, and the axes of the positioning guide through holes of the first positioning piece and the second positioning piece are overlapped; and a drill bush is embedded in the positioning guide through hole.
2. The circular tube non-radial hole drilling fixture as claimed in claim 1, wherein the first positioning member and the second positioning member are protruded to have a triangular prism shape, a plane a of the triangular prism outside the first positioning member is parallel to a plane B of the triangular prism outside the second positioning member, and positioning guide through holes are formed in the plane a and the plane B in a relatively opened manner.
3. The circular tube non-radial hole drilling fixture as claimed in claim 1 or 2, wherein steps facilitating clamp fixing are arranged on two sides of the first positioning piece and the second positioning piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824096.8U CN211331417U (en) | 2019-10-28 | 2019-10-28 | Non-radial hole drilling clamp for circular tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824096.8U CN211331417U (en) | 2019-10-28 | 2019-10-28 | Non-radial hole drilling clamp for circular tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211331417U true CN211331417U (en) | 2020-08-25 |
Family
ID=72090573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921824096.8U Active CN211331417U (en) | 2019-10-28 | 2019-10-28 | Non-radial hole drilling clamp for circular tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211331417U (en) |
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2019
- 2019-10-28 CN CN201921824096.8U patent/CN211331417U/en active Active
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