CN209971548U

CN209971548U - 3D prints oil drilling drill bit matrix mould

Info

Publication number: CN209971548U
Application number: CN201822086778.5U
Authority: CN
Inventors: 张达军; 曹伟; 陆正; 程涛; 曹静远
Original assignee: Hubei Daoda Intelligent Equipment Co Ltd
Current assignee: Hubei Daoda Intelligent Equipment Co Ltd
Priority date: 2018-12-13
Filing date: 2018-12-13
Publication date: 2020-01-21
Anticipated expiration: 2028-12-13

Abstract

The utility model provides a drill bit matrix mould for 3D printing petroleum drilling, wherein a drill bit wing is contacted with a drill bit matrix surface, and cutting tooth grooves are uniformly distributed on the drill bit matrix surface; the cutting teeth are embedded into the cutting tooth grooves; the upper end surface of the whole tire membrane is vertical to the outer surface of the mold, and an annular corner joint is arranged at the joint for transition; the cutting tooth groove, the drill bit body surface and the end surface are respectively attached and correspond to the cutting teeth, the blade and the top end of the drill bit body. The device has low cost, high efficiency and strong verification, and the design data can be modified at any time, so that the problems of high investment, low yield, long production period, serious waste of production materials and the like caused by design change in the PDC drill bit mold development link are fundamentally solved.

Description

3D prints oil drilling drill bit matrix mould

Technical Field

The utility model relates to a technical field is equipped to the oil, in particular to 3D prints oil drilling drill bit matrix mould.

Background

PDC (poly diamond compact) drill bits are widely applied to drill bits in the fields of petroleum and geology, and have high hardness, wear resistance and service life. At present, the PDC drill bit mould is basically manufactured by adopting a machining mode, and the problems of high cost, long period and the like exist in the mould manufacturing process due to the structural complexity and high precision requirement of the PDC drill bit. And after later-period setting change, the die needs to be manufactured again, so that resource waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a 3D prints oil drilling drill bit matrix mould.

In order to solve the technical problem, the utility model discloses a realize according to following mode:

A3D printing oil drilling bit matrix mold comprises a bit body (21), cutting teeth (22), blades (23), cutting tooth grooves (31), a bit matrix surface (32), an end surface (33), an annular corner joint (34) and a mold outer surface (35);

the blade (23) is in contact with the drill bit body surface (32), and the cutting tooth grooves (31) are uniformly distributed on the drill bit body surface (32); the cutting tooth (22) is embedded in the cutting tooth slot (31); the upper end surface (33) of the whole tire membrane is vertical to the outer surface (35) of the mold, and the annular corner joint (34) is arranged at the joint for transition;

the cutting tooth grooves (31), the drill bit body surface (32) and the end surface (33) correspond to the cutting teeth (22), the blades (23) and the top end of the drill bit body (21) in an attaching mode.

The utility model has the advantages that:

1. the device can greatly reduce the manufacturing cost of the rapid die, shorten the development period, has high cost performance, strong universality and high material utilization rate, and accords with green manufacturing.

2. The CAD data model is visualized, and the error repair cost is reduced.

3. The 3D printing is used for solving the difficult problem of manufacturing complex structures such as free-form surfaces in the traditional die machining process.

Drawings

FIG. 1 is a schematic diagram of a principle process of photocuring 3D printing technology;

FIG. 2 is a top view of a PDC bit for oil drilling;

FIG. 3 is a perspective view of a PDC bit for oil drilling;

fig. 4 is a top view of a photo-curing 3D printing resin mold;

fig. 5 is a perspective view of a photo-curing 3D printing resin mold;

FIG. 6 is a cross-sectional view of a drill bit matrix mold support design;

wherein: 1-a scraper; 2-a laser; 3-a lifting platform; 4-a photosensitive resin; 5-printing the workpiece; 21-a bit body; 22-a cutting tooth; 23-a blade; 31-cutting the tooth slot; 32-bit body surface; 33-end face; 34-annular corner joint; 35-the outer surface of the mould; 41-forming a mould; 42-a support structure; 43-Forming the cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The photocuring 3D printing technology is an energy-saving, clean and environment-friendly technology, saves energy, has the energy consumption of only one tenth of that of the traditional mercury lamp, does not contain solvent, has the protection effect on the ecological environment, does not discharge toxic gas and carbon dioxide to the atmosphere, and is known as 'green technology'.

The principle of the photocuring 3D printing technology is that special liquid photosensitive resin is used as a raw material, and a certain proportion of ultraviolet initiator is mixed in the special liquid photosensitive resin, so that the special liquid photosensitive resin can be immediately subjected to polymerization reaction and solidification under the irradiation of ultraviolet light with a certain wavelength; ultraviolet laser scans the liquid resin point by point along each layered section profile of the part; the scanned resin thin layer can generate polymerization reaction, a line is gradually formed by points, a solidified section of the thin layer of the part is finally formed, and the resin which is not scanned keeps the original liquid state; when one layer is cured, the lifting workbench moves by the thickness of one layer, and a new layer of liquid resin is covered on the surface of the cured resin of the previous layer for scanning and curing again; the newly cured layer adheres firmly to the previous layer and so on until the entire part prototype is manufactured.

As shown in fig. 1-6, an embodiment of the present invention provides a 3D printing oil drilling bit matrix mold, including scraper 1, laser 2, elevating platform 3, photosensitive resin 4, printing workpiece 5 includes bit body 21, cutting tooth 22, wing 23, cutting tooth's socket 31, bit matrix face 32, terminal surface 33, annular corner joint 34, mold outer surface 35, molding 41, supporting structure 42, forming cylinder 43.

The drill bit 23 contacts the bit matrix surface 32, and the bit matrix surface 32 is provided with cutting tooth grooves 31. The cutting teeth 22 are inserted into the cutting gullets 31; the upper end face 33 of the whole tire membrane is perpendicular to the outer surface 35 of the mold, and the joint is provided with an annular corner joint 34 for transition.

The 31 cutting tooth grooves, the 32 drill bit body surfaces, the 33 end surfaces and the 34 annular corner joints are correspondingly attached to the top ends of 22 cutting teeth, 23 blades and 21 drill bodies in the PDC drill bit for oil drilling.

During printing, the drill bit matrix 41 is formed from the bottom surface 43 of the forming cylinder, and a support structure 42 is required to support the in-mold cutting gullets 31, the drill bit matrix surface 32 and the end surface 33.

The specific implementation steps are as follows:

and (3) carrying out data conversion and processing photocuring 3D printing rapid manufacturing post-processing on the data construction of the three-dimensional CAD software for the PDC drill bit prototype design.

PDC bit prototype design: the data in the design stage can be obtained by drawing a CAD prototype drawing by professional designers, noting various dimensional parameter indexes or scanning the existing drill bit model by a high-precision three-dimensional scanning instrument to obtain point cloud data.

2. Three-dimensional CAD software data construction: high-precision three-dimensional data can also be obtained by performing equal-size three-dimensional data construction through a CAD drawing by a modeler or performing reverse modeling through point cloud data obtained by scanning.

3. Data conversion and processing: the three-dimensional data is usually in a solid model format, needs to be converted to a special format, and is output to a special machine instruction file through the procedures of data restoration, support construction, slicing, processing programming and the like.

4. Photocuring 3D printing rapid manufacturing: the light curing equipment is started and data is led in by equipment operators, the ultraviolet laser is finally and accurately projected on a processing surface through the reflecting mirror, the focusing mirror and the vibrating mirror system, and the movement of the optical path system is controlled by a program to enable the laser to sequentially scan and cure along the part layered structure path. The printing process is formed by enabling 31 cutting tooth grooves, 32 drill bit matrix surfaces, 33 end surfaces and 34 annular corner joints (shown in figure 5) in a photocuring 3D printing resin mold to be in one-to-one fit correspondence with 22 cutting teeth, 23 blades and 21 bit body top ends (shown in figure 2) in an oil drilling PDC drill bit, and in the whole printing process, the matrix mold is used as a 5 printing workpiece and is solidified layer by layer in 4 photosensitive resin, a specifically formed internal supporting structure is shown in a cross section of a drill bit matrix mold supporting design structure 42 in figure 4 and is in regular geometric arrangement, an external surface structure diagram is shown in a cross section of the drill bit matrix mold supporting design structure 42 in figure 4, the internal supporting structure is in a plane according to the requirement of a digifax, a forming cylinder 43 is descended by one layer thickness after each layer is finished, and the scanning process is repeated until the.

5. And (3) post-treatment: cleaning the resin mold blank in pure alcohol solution, removing the supporting structure, irradiating by ultraviolet rays for 40min, uniformly curing by 70mim, and finely polishing the rough part.

The present invention is not limited to the above-mentioned preferred embodiments, and any person can obtain other products in various forms under the teaching of the present invention, but any change in shape or structure is made, and all the technical solutions identical or similar to the present invention are within the protection scope of the present invention.

Claims

1. The mold for the matrix of the drill bit for the 3D printing of the petroleum drilling is characterized by comprising a drill bit body (21), cutting teeth (22), blades (23), cutting tooth grooves (31), a drill bit matrix surface (32), an end surface (33), an annular corner joint (34) and an outer mold surface (35);