CN216632661U

CN216632661U - Pipeline BOSS head drilling positioning fixture

Info

Publication number: CN216632661U
Application number: CN202122539677.0U
Authority: CN
Inventors: 杨汉民; 赵椿; 宋荣; 兰俊杰; 张永其
Original assignee: China Nuclear Industry Fifth Construction Co Ltd
Current assignee: China Nuclear Industry Fifth Construction Co Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-05-31
Anticipated expiration: 2031-10-21

Abstract

The utility model discloses a pipeline BOSS head drilling positioning fixture, which comprises: a base; the two landing gears are respectively arranged on two sides of the base, and sliding grooves are formed in the two landing gears; one end of the movable supporting plate is rotatably connected with one end of the base, and two sides of the movable supporting plate are respectively connected with the two sliding grooves in a sliding and locking manner; clamping device, clamping device locates on the movable support plate, clamping device includes two at least pipe strap subassemblies that set up side by side, each the pipe strap subassembly includes: and the two pipe clamps are fixedly connected through bolts and are used for clamping the pipeline. The utility model improves the stability of pipeline fixation, improves the drilling efficiency and the one-time qualification rate of drilling, reduces the damage of drilling to the pipe fitting body, improves the safety coefficient of drilling, and accelerates the propulsion of the installation work of the BOSS head of the pipeline.

Description

Pipeline BOSS head drilling positioning fixture

Technical Field

The utility model relates to the technical field of pipeline positioning devices, in particular to a pipeline BOSS head drilling positioning clamp.

Background

The BOSS head drilling positioning fixture is suitable for drilling a BOSS head of a process pipeline and drilling other non-process pipelines. The BOSS head drilling positioning fixture comprises the following drilling processes: the small holes on the thin-wall pipeline can be drilled through at one time; drilling small holes in the thin-wall pipeline before drilling large holes, and gradually reaming the holes; and (3) drilling small holes in the thick-wall pipeline, replacing the drill bit, and gradually reaming.

The drilling mode of the BOSS head of the existing nuclear power pipeline is as follows:

1. and fixing the pipeline to be drilled on a bench drill working platform, determining the position of the hole according to the size in the drawing, and drilling. The drilling machine is suitable for 90-degree hole opening operation, high in limitation and complex in operation, and due to the fact that no proper fixing device is arranged, vibration is large during drilling;

2. and clamping the pipeline on the operating platform, drawing a line according to the size in the drawing, and drilling by holding a pistol drill. The device is mainly used for drilling inclined holes on pipelines, has no proper clamping device, and has poor drilling stability, low efficiency and small safety factor;

3. an angle hole is formed in the drilling platform, a base plate is added to one end of the pipeline, and the height of the base plate is adjusted to be converted into a BOSS head installation angle, so that drilling work at a special angle is achieved. This type of work needs many people to cooperate, and factor of safety is low, and drilling efficiency is low and the input cost is too high, and the fixed difficulty of pipeline just damages BOSS head internal thread easily.

Therefore, the BOSS head with a special installation angle in the prior art requires drilling after welding is completed, the drilling difficulty is high, vibration is easy to generate, internal threads of the BOSS head are damaged, pipe fittings are damaged, potential safety hazards are easy to generate, and personnel injury is caused.

Disclosure of Invention

The above-mentioned problem to current pipeline fixed platform existence aims at providing a pipeline BOSS head drilling positioning fixture now, improves the stability that the pipeline is fixed, promotes the primary qualification rate of drilling efficiency and drilling, reduces the damage of drilling to the pipe fitting body, improves the factor of safety of drilling for the propulsion of pipeline BOSS head installation work.

The specific technical scheme is as follows:

a pipeline BOSS head drilling positioning fixture comprises:

a base;

the two landing gears are respectively arranged on two sides of the base, and sliding grooves are formed in the two landing gears;

one end of the movable supporting plate is rotatably connected with one end of the base, and two sides of the movable supporting plate are respectively connected with the two sliding grooves in a sliding and locking manner;

clamping device, clamping device locates on the movable support plate, clamping device includes two at least pipe strap subassemblies that set up side by side, each the pipe strap subassembly includes: and the two pipe clamps are fixedly connected through bolts and are used for clamping the pipeline.

The above drilling positioning fixture for the pipeline BOSS head comprises a mounting plate, wherein the mounting plate is arranged on the movable supporting plate, and the two pipe clamp assemblies are respectively arranged on the mounting plate.

The drilling positioning fixture for the BOSS head of the pipeline is characterized in that the mounting plate is fixedly connected with the movable supporting plate through four bolts.

In the above drilling positioning fixture for the pipeline BOSS head, one end of the movable supporting plate is rotatably connected with one end of the base through a rotating shaft.

In the above drilling positioning fixture for the pipeline BOSS head, the four corners of the base are respectively provided with the first mounting blocks, the two first mounting blocks located at one end of the base are respectively connected with the rotating shaft in a rotating manner, and the two first mounting blocks located at the other end of the base are respectively fixedly connected with the lower ends of the two undercarriage.

In the above drilling positioning fixture for the pipeline BOSS head, two sides of the other end of the movable supporting plate are respectively in sliding fit with the two sliding grooves of the two landing gears through the bolts.

In the above pipeline BOSS head drilling positioning fixture, the four corners of the bottom of the movable supporting plate are respectively provided with a second mounting block, the two second mounting blocks located at one end of the movable supporting plate are respectively connected with the rotating shaft in a rotating manner, and the two second mounting blocks located at the other end of the movable supporting plate are respectively provided with the bolt, the bolt and the two sliding grooves in sliding fit.

Above-mentioned pipeline BOSS head drilling positioning fixture, wherein, the central axis of pipeline with the upper surface parallel arrangement of mounting panel.

Compared with the prior art, the technical scheme has the positive effects that:

the utility model improves the stability of pipeline fixation, improves the drilling efficiency and the one-time qualification rate of drilling, reduces the damage of drilling to the pipe fitting body, improves the safety coefficient of drilling, and accelerates the propulsion of the installation work of the BOSS head of the pipeline.

Drawings

FIG. 1 is a schematic view of the overall structure of a positioning fixture for drilling a BOSS head of a pipeline according to the present invention;

in the drawings: 1. a base; 2. a landing gear; 3. a movable support plate; 4. a clamping device; 5. a chute; 6. a pipe clamp assembly; 7. a pipe clamp; 8. a bolt; 9. a pipeline; 10. mounting a plate; 11. a rotating shaft.

Detailed Description

The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

Fig. 1 is a schematic view of the overall structure of a pipe BOSS head drilling positioning fixture of the present invention, and as shown in fig. 1, a pipe BOSS head drilling positioning fixture of a preferred embodiment is shown, including: base 1, two undercarriage 2, activity backup pad 3 and clamping device 4, the both sides of base 1 are located respectively to two undercarriage 2, all are equipped with spout 5 on two undercarriage 2, the one end of activity backup pad 3 rotates with the one end of base 1 to be connected, the both sides of activity backup pad 3 lock with two spout 5 slidable respectively and are connected, clamping device 4 locates on the activity backup pad 3, clamping device 4 includes the pipe strap subassembly 6 of two at least parallel settings, each pipe strap subassembly 6 includes: the two pipe clamps 7 are fixedly connected through bolts 8 and used for clamping a pipeline 9.

Further, as a preferred embodiment, the clamping device 4 further includes: the mounting plate 10, the mounting plate 10 are located on the movable supporting plate 3, and the two pipe clamp assemblies 6 are respectively located on the mounting plate 10.

Further, as a preferred embodiment, the mounting plate 10 is fixedly connected to the movable support plate 3 by four bolts 8.

The above are merely preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.

The present invention also has the following embodiments in addition to the above:

in a further embodiment of the present invention, please refer to fig. 1, wherein one end of the movable supporting plate 3 is rotatably connected to one end of the base 1 through a rotating shaft 11.

In a further embodiment of the present invention, first mounting blocks (not shown in the drawings) are disposed at four corners of the base 1, two first mounting blocks located at one end of the base 1 are respectively rotatably connected to the rotating shaft 11, and two first mounting blocks located at the other end of the base 1 are respectively fixedly connected to lower ends of the two landing gears 2.

In a further embodiment of the present invention, two sides of the other end of the movable supporting plate 3 are respectively in sliding fit with the two sliding grooves 5 of the two landing gears 2 through bolts 8.

In a further embodiment of the present invention, the four corners of the bottom of the movable supporting plate 3 are respectively provided with a second mounting block (not shown in the figure), two second mounting blocks located at one end of the movable supporting plate 3 are respectively rotatably connected with the rotating shaft 11, two second mounting blocks located at the other end of the movable supporting plate 3 are respectively provided with a bolt 8, and the two bolts 8 are in sliding fit with the two sliding grooves 5.

In a further embodiment of the utility model the central axis of the conduit 9 is arranged parallel to the upper surface of the mounting plate 10.

According to the utility model, the pipeline is fixed by the positioning clamp, so that the drilling precision is increased, the drilling accuracy is ensured, the success percentage at one time is increased, the investment of human and machine materials is reduced, and the working efficiency is improved.

Preferably, the landing plate 2 is arc-shaped.

Preferably, the sliding groove 5 is arc-shaped.

The angle of the movable supporting plate 3 can be adjusted through the sliding groove 5 and then locked, namely the angle of the clamping device 4 can be adjusted, so that the angle of the pipeline can be adjusted.

Wherein, the movable supporting plate 3 is fixed after sliding through the locking of the bolt 8.

The utility model improves the stability of fixing the pipeline 9, improves the drilling efficiency and the one-time qualification rate of drilling, reduces the damage of the drilling to the pipeline body, improves the safety coefficient of the drilling and accelerates the propulsion of the installation work of the BOSS head of the pipeline.

The BOSS head drilling positioning fixture disclosed by the utility model is arranged on a drilling machine working platform by using a high-strength bolt, so that the problem of large drilling vibration is effectively solved, the safety coefficient is improved, and the 100% qualified rate of drilling is realized as far as possible.

According to the utility model, the multi-angle BOSS head drilling work can be realized by adjusting the angle of the movable support, and the problem of difficulty in drilling angle is solved.

The BOSS head drilling of pipelines with pipe diameters of DN200 and below can realize the drilling work of different pipe diameters only by replacing pipe clamps or additionally arranging cushion rings, and the BOSS head drilling of pipelines with pipe diameters of DN200 and above needs replacing tools.

According to the utility model, the drilling operation of the BOSS heads of pipelines made of different materials can be realized only by changing the material of the clamping device, so that the pollution among different materials is avoided.

The utility model can be disassembled for storage after use, thereby saving space and being convenient for storage and taking.

The BOSS head drilling positioning fixture takes multi-angle BOSS head drilling as an object, batch drilling and batch installation are formed, and the problem of low drilling efficiency is solved;

according to the utility model, different types of drilling tools can be selected for drilling according to the differences of the sizes of the pipelines, the pipe diameters, the wall thicknesses and the like and in combination with the specification and the model of the working surface of the drill floor.

The utility model not only improves the precision and accuracy of BOSS head drilling work, reduces the investment of drilling cost, improves the safety of the drilling work, and effectively improves the economic benefit of enterprises.

The calculation process of the BOSS head installation angle a comprises the following steps:

∵∠a＝∠b ∠b＝∠c ∠c+∠d＝90°

∴∠a+∠d＝90° ∠a＝90°-∠d

∵sin∠d＝h/L sin∠d＝cos(90°-∠d)

∴cos∠a＝h/L

because length L is the fixed value, and a is the angle of drawing sign, so only need adjust height h can realize the purpose of BOSS head multi-angle drilling in the site operation.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a pipeline BOSS head drilling positioning fixture which characterized in that includes:

a base;

2. The pipe BOSS head hole-drilling positioning fixture of claim 1, wherein said clamping device further comprises a mounting plate, said mounting plate is disposed on said movable support plate, and said two pipe clamp assemblies are respectively disposed on said mounting plate.

3. The pipe BOSS head hole-drilling positioning fixture of claim 2, wherein the mounting plate is fixedly connected to the movable support plate by four bolts.

4. The pipe BOSS head boring positioning fixture of claim 1, wherein one end of the movable support plate is rotatably connected to one end of the base via a shaft.

5. The pipe BOSS head drilling positioning fixture according to claim 4, wherein first mounting blocks are respectively disposed at four corners of the base, two first mounting blocks located at one end of the base are respectively rotatably connected to the rotating shaft, and two first mounting blocks located at the other end of the base are respectively fixedly connected to lower ends of two landing gears.

6. The pipe BOSS head drilling positioning fixture according to claim 5, wherein two sides of the other end of the movable supporting plate are respectively in sliding fit with the two sliding grooves of the two landing gears through the bolts.

7. The pipe BOSS head drilling and positioning fixture according to claim 6, wherein second mounting blocks are respectively disposed at four corners of the bottom of the movable supporting plate, the two second mounting blocks located at one end of the movable supporting plate are respectively rotatably connected to the rotating shaft, the two second mounting blocks located at the other end of the movable supporting plate are respectively provided with the bolts, and the two bolts are in sliding fit with the two sliding grooves.

8. The pipe BOSS head drill positioning fixture of claim 2, wherein the central axis of the pipe is disposed parallel to the upper surface of the mounting plate.