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Manufacturing method for bottom die of drill bit with composite synneutic diamond plate

A technology of composite drill bits and polycrystalline diamond, which is applied in the field of manufacturing polycrystalline diamond composite drill bit bottom molds, can solve the problems of high manufacturing cost, low mold precision, and large manual modeling errors, and achieve convenient parameter adjustment, The effect of reducing labor intensity and reducing human error

Inactive Publication Date: 2008-01-16
DAQING PETROLEUM ADMINISTRATION
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Problems solved by technology

[0003] In order to overcome the deficiencies of large manual modeling errors, low mold precision, and high manufacturing cost in the manufacture of existing polycrystalline diamond compact drill bottom molds, the invention provides a manufacturing of polycrystalline diamond compact drill bottom molds The method, the manufacturing method of this kind of polycrystalline diamond composite sheet drill bit base mold enables the processed drill bit base mold to accurately realize the positioning of cutting teeth and water holes, fully realize the design requirements, and the mold has high precision and can be formed at one time. Reduce the labor intensity of workers and improve work efficiency

Method used

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  • Manufacturing method for bottom die of drill bit with composite synneutic diamond plate
  • Manufacturing method for bottom die of drill bit with composite synneutic diamond plate

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[0023] (1) Decompose the physical characteristics of the bottom mold of the polycrystalline diamond compact drill bit, and decompose it into the graphite blank of the bottom mold, the crown of the polycrystalline diamond compact drill bit, the position positioning of a single cutting tooth, and the position positioning combination of all cutting teeth of a single blade , the shape of the tooth socket, and the shape of the flute are six main features.

[0024] (2) Use the Pro / E software with feature modeling function to establish the graphite blank feature of the bottom mold of the drill bit bottom mold, that is, use the Pro / E software to select the function of creating-entity-adding material-stretching under the feature option, Draw a circle according to the size of the blank, input the stretching distance after confirmation, and create a part drawing, so as to obtain the characteristics of the bottom mold blank.

[0025] (3) Use the Pro / E software with feature modeling functi...

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Abstract

A method for manufacturing the bottom die of drill bit with composite synneutic diamond plate includes such steps as analyzing the characteristic elements of said bottom die to obtain the relation between them, gradually creating its graphite blank characteristics, its coronary characteristics, cutting tooth's space location characteristics, and substitute tooth characteristics, combining the characteristics of cutting tooth location and substitute tooth, removing the substitute teeth installed according to the position of cutting teeth, performing the location of cutting teeth, generating the shape of milling pit, forming the hydraulic structure according to size of discharged filings etc. Its advantages are high precision and low cost.

Description

Technical field: [0001] The invention relates to a numerical control manufacturing method of a drill bit mold, in particular to a manufacturing method of a polycrystalline diamond composite sheet drill bit bottom mold. Background technique: [0002] The polycrystalline diamond compact drill bit mold is composed of three parts: the bottom mold, the middle mold and the upper mold. The design and processing of the middle mold and the upper mold are easy to realize, but the bottom mold is an entity with complex curved surface characteristics, and the shape parameters of the crown of the drill bit , cutting tooth position and direction parameters, hydraulic structure parameters, etc. are guaranteed by the shape of the bottom mold. Therefore, the design and processing of the bottom mold of the polycrystalline diamond compact drill bit is the key to the design and processing of the polycrystalline diamond compact drill bit mold. . At present, there are mainly two methods for the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/24
Inventor 国学臣张川平张治邦
Owner DAQING PETROLEUM ADMINISTRATION
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