CN112096302A - Deep hole drilling rod and matching device - Google Patents
Deep hole drilling rod and matching device Download PDFInfo
- Publication number
- CN112096302A CN112096302A CN202010981039.1A CN202010981039A CN112096302A CN 112096302 A CN112096302 A CN 112096302A CN 202010981039 A CN202010981039 A CN 202010981039A CN 112096302 A CN112096302 A CN 112096302A
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- China
- Prior art keywords
- drill rod
- drill
- deep hole
- rod
- fixedly installed
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- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 32
- 238000003754 machining Methods 0.000 abstract description 15
- 238000013461 design Methods 0.000 abstract description 7
- 230000003746 surface roughness Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 description 9
- 239000002173 cutting fluid Substances 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 7
- 229920001342 Bakelite® Polymers 0.000 description 5
- 239000004637 bakelite Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling Tools (AREA)
Abstract
The invention provides a deep hole drill rod and a matching device, relates to the technical field of machining, aims to solve the problems that the existing common deep hole drill rod is summarized and analyzed according to a product to be machined, the existing deep hole drill rod is improved, the matching device is added, the rigidity of the drill rod is improved, technological measures are improved, the deflection and vibration generated in drilling are avoided, and the surface machining quality is improved, and comprises a drill rod; and a cylindrical pressure head is fixedly arranged at the lower end of the drill rod. In the invention, because the coaxiality, the straightness, the surface roughness quality and the like of the inner hole of the part machined by the previous drilling cutter rod are unstable, a pair of frosted drill bits are fixedly arranged at the front end of the drill rod, the front guide strips are respectively and fixedly arranged at the front end positions of the drill bits, and the inner diameter size of the part is phi 87.82, so that the design structure of the inner diameter size and the outer diameter size of the drill rod is limited to a certain extent, the inflow of high-pressure oil is reduced during deep hole machining, and the chip removal function in the drill rod for deep hole machining is influenced.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a deep hole drill rod and a matching device.
Background
The deep hole drill is a drill bit specially used for processing deep holes. Holes with a hole depth to hole diameter ratio of greater than 6 are often referred to as deep holes in machining. For a long time, deep hole machining is a difficult point of mechanical machining, although a deep hole drill in the prior art can meet the deep hole machining of general requirements, the requirements on tolerance such as excircle coaxiality, straightness, surface roughness quality and the like are high, and process means such as reaming, boring, rolling, honing and the like are required to be added for parts with strict dimensional tolerance.
In the deep hole drilling, the drilling processingquality directly influences the processingquality of sequent, because adopt during the drilling to push away the boring mode processing, drill bit and drilling rod receive axial pressure, but only there is the support at drill bit department and drilling rod end, there is not the support in the drilling rod middle part, lead to the drilling in-process, the drilling rod rigidity is not enough, produce the bending easily, run into hard point and produce beat, vibration easily, the hole that leads to processing is very poor with excircle axiality, straightness accuracy and circularity, hole surface roughness is also relatively poor, cause the waste product easily.
Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a deep hole drill rod and a matching device are provided, so as to achieve the purpose of being more practical.
Disclosure of Invention
In order to solve the technical problems, the invention provides a deep hole drill rod and a matching device, which are used for solving the problems that the defects of the conventional common deep hole drill rod are summarized and analyzed according to a product to be processed, the conventional deep hole drill rod is improved, the matching device is added, the rigidity of the drill rod is improved, technological measures are improved, the deflection and vibration generated in drilling are avoided, and the surface processing quality is improved.
The invention relates to a deep hole drill rod and a matched device, which are realized by the following specific technical means:
the utility model provides a deep hole drilling rod and supporting device, includes a deep hole drilling rod and supporting device, its characterized in that: comprises a drill rod; a cylindrical pressure head is fixedly arranged at the lower end of the drill rod; three groups of rectangular spline type supporting strips are fixedly arranged at the right end of the pressure head; the drill rod comprises a drill bit and a front guide strip, a pair of frosted drill bits is fixedly installed at the front end of the drill rod, and the front guide strip is fixedly installed at the front end of the drill bit respectively.
Furthermore, the pressure head comprises a sealing ring and a sealing device, a pair of circular sealing rings is fixedly installed at the upper end of the left side of the pressure head, and a pair of S-shaped sealing devices is fixedly installed at the rear positions of the sealing rings respectively.
Furthermore, the spline type supporting strip comprises a supporting sleeve, the spline type supporting strip is composed of three groups of cylinders, the supporting sleeve is fixedly installed at the upper end of the spline type supporting strip, and the spline type supporting strip is fixedly installed at the center of the left end and the right end of the drill rod.
Furthermore, the drill bit and the front guide strip are on the same horizontal line with the drill rod, and the drill bit and the front guide strip are both arranged on the front side and the rear side of the left end of the drill rod.
Furthermore, the sealing device and the sealing ring are both fixedly installed at the upper end of the pressure head.
Compared with the prior art, the invention has the following beneficial effects:
because the coaxiality, the straightness, the surface roughness quality and the like of an inner hole of a part machined by a previous drilling cutter bar are unstable, a pair of frosted drill bits are fixedly installed at the front ends of drill rods, front guide strips are respectively and fixedly installed at the front ends of the drill bits, and the inner diameter size of the part is phi 87.82, so that the design structure of the inner diameter size and the outer diameter size of the drill rods is limited to a certain extent, on one hand, the outer diameter size of the drill rods cannot be overlarge, the inflow of high-pressure oil is reduced during deep hole machining, insufficient pressure is generated, the chip removing function in the drill rods for deep hole machining is influenced, a cylindrical pressure head is fixedly installed at the lower end of the drill rods, a pair of circular sealing rings is fixedly installed at the upper end of the left sides of the pressure head, a pair of S-shaped sealing devices is respectively and fixedly installed at the rear positions of the sealing rings, a positioning sealing structure, when designing the drilling rod, still will compromise the maximum internal diameter size of drilling rod, must accomplish the inside and outside diameter size phase-match of drilling rod, guarantee the firm reliable of drilling rod head junction rectangle screw thread, the drilling rod has sufficient rigidity, still must satisfy simultaneously and realize the interior chip removal function of deep hole processing equipment, guarantee make the smooth iron fillings incasement of walking the chamber along the drilling rod hole of smear metal discharge under the effect of high-pressure oil.
Because the right-hand member fixed mounting of pressure head three group cuboid form spline type supporting strip, increased the installation supporting sleeve on the drilling rod, the interval is about 250mm long arranges six altogether, strengthen the support to the drilling rod, guarantee that there is certain pressure's cutting fluid to get into the work piece hole during drilling, cool off the drill bit, the smear metal is washed out through the drilling rod hole, design the excircle of supporting sleeve into the rectangular spline shape, the material adopts bakelite, so can effectively support the drilling rod and strengthen the rigidity of drilling rod simultaneously, and reduced the wearing and tearing between drilling rod and the supporting sleeve, get into the work piece hole smoothly with the cutting fluid simultaneously, cool off the drill bit, take away the smear metal, the axiality of part excircle and hole is within 0.03mm, dimensional tolerance and surface roughness can both satisfy the drawing requirement completely, the qualification rate reaches 100%.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic axial view of a portion of the drill rod of the present invention.
Fig. 3 is a schematic view of the pressure head of the present invention in a partial axial configuration.
Fig. 4 is a partial axial view of the spline-type support bar of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a drill stem; 101. a drill bit; 102. a front guide bar; 2. a pressure head; 201. a seal ring; 202. a sealing device; 3. a splined support bar; 301. and a support sleeve.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 4:
the invention provides a deep hole drill rod and a matched device, comprising a drill rod 1; a cylindrical pressure head 2 is fixedly arranged at the lower end of the drill rod 1; the right end of the pressure head 2 is fixedly provided with three groups of rectangular spline type supporting strips 3; the drill rod 1 comprises a drill bit 101 and a front guide strip 102, a pair of frosted drill bits 101 are fixedly mounted at the front end of the drill rod 1, the front guide strip 102 is fixedly mounted at the front end of the drill bit 101 respectively, the inner diameter of a part is phi 87.82, and therefore the inner diameter and the outer diameter of the drill rod 1 are limited in design structure, on one hand, the outer diameter of the drill rod 1 cannot be too large, the inflow of high-pressure oil is reduced during deep hole machining, pressure is generated insufficiently, the chip discharging function in the drill rod 1 for deep hole machining is influenced, and the phenomenon that the drill rod 1 is blocked by chips is easy to generate.
The pressure head 2 comprises a sealing ring 201 and a sealing device 202, a pair of circular sealing rings 201 is fixedly mounted at the upper end of the left side of the pressure head 2, a pair of S-shaped sealing devices 202 are fixedly mounted at the back positions of the sealing rings 201 respectively, a positioning sealing structure matched with parts is designed, the drill rod 1 is matched with a machine tool cutting and sealing system in the design structure, when the drill rod 1 is designed, the maximum inner diameter size of the drill rod 1 is also considered, the inner diameter size and the outer diameter size of the drill rod 1 must be matched, the rectangular threads at the head connection part of the drill rod 1 are firm and reliable, the drill rod 1 has enough rigidity, the chip discharging function in deep hole processing equipment is also met and realized, and chips are smoothly discharged into a scrap iron box along an inner hole cavity of the drill rod 1 under the action of high-pressure oil.
The spline type supporting strip 3 comprises a supporting sleeve 301, the spline type supporting strip 3 is composed of three groups of cylinders, the supporting sleeve is fixedly installed at the upper end of the spline type supporting strip 3, the spline type supporting strip 3 is fixedly installed at the center of the left end and the right end of a drill rod 1, the supporting sleeve 301 is additionally installed on the drill rod 1, six supporting sleeves are arranged on the drill rod 1 at intervals of about 250mm, the supporting of the drill rod 1 is enhanced, cutting fluid with certain pressure enters an inner hole of a workpiece during drilling and cools a drill bit 101, cuttings are punched out from the inner hole of the drill rod 1, the outer circle of the supporting sleeve 301 is designed into a rectangular spline shape, and the materials are bakelite, so that the rigidity of the drill rod 1 can be effectively supported, the abrasion between the drill rod 1 and the supporting sleeve 301 is reduced, meanwhile, the cutting fluid smoothly enters the inner hole of the workpiece, the drill bit 101 is cooled, and the cuttings are taken, the bearing sleeve is soaked in the cutting fluid in advance, so that the abrasion of the bakelite sleeve is effectively reduced, and the service life of the bearing sleeve 301 is prolonged.
The drill bit 101 and the front guide strip 102 are on the same horizontal line with the drill rod 1, the drill bit 101 and the front guide strip 102 are both installed on the front side and the rear side of the left end of the drill rod 1, a guide part is added in front of the drill bit 101, and concentricity of an inner hole and an outer circle is improved.
The sealing device 202 and the sealing ring 201 are fixedly mounted at the upper end of the pressure head 2, a sealing transition adapter sleeve structure is designed, the sealing function of a contact surface of a part and a machine tool is realized, smooth transition of a joint is solved, the part and a cutter form a closed space, a closed high-pressure circulating system is formed during deep hole cutting machining, high-pressure oil is prevented from leaking, and the functions of cooling, chip removal, lubrication and the like during deep hole machining of the machine tool are realized.
The specific use mode and function of the embodiment are as follows:
an object (a cylinder sleeve mold) to be processed is processed on a numerical control deep hole drilling and boring machine, a cutter adopts a jet-suction drill bit 101 for deep hole processing to process in a push-boring mode, a pair of frosted drill bits 101 are fixedly installed at the front end of a drill rod 1, front guide strips 102 are respectively and fixedly installed at the front end positions of the drill bits 101, and the inner diameter size of a part is phi 87.82, so that the design structure of the inner diameter size and the outer diameter size of the drill rod 1 is limited to a certain extent, on one hand, the outer diameter size of the drill rod 1 cannot be overlarge, the inflow of high-pressure oil is reduced during deep hole processing, insufficient pressure is generated, the chip removal function in the drill rod 1 for deep hole processing is influenced, a cylindrical pressure head 2 is fixedly installed at the lower end position of the drill rod 1, a pair of circular sealing rings 201 is fixedly installed at the upper end of the left side of the pressure head 2, a pair of S, the design structure of the drill rod 1 is matched with a cutting and sealing system of a machine tool, when the drill rod 1 is designed, the maximum inner diameter size of the drill rod 1 is also considered, the inner diameter size and the outer diameter size of the drill rod 1 must be matched, the firmness and reliability of the rectangular thread at the head connecting part of the drill rod 1 are ensured, and the drill rod 1 has enough rigidity;
in addition, three groups of cuboid spline type supporting strips 3 are fixedly installed at the right end of the pressure head 2, an installation supporting sleeve 301 is additionally arranged on the drill rod 1, six rectangular spline type supporting strips are arranged at intervals of about 250mm, the support of the drill rod 1 is enhanced, cutting fluid with certain pressure enters a workpiece inner hole during drilling, the drill bit 101 is cooled, cutting chips are punched out of the inner hole of the drill rod 1, the outer circle of the supporting sleeve 301 is designed into a rectangular spline shape, and bakelite is adopted as a material, so that the drill rod 1 can be effectively supported, the rigidity of the drill rod 1 is enhanced, the abrasion between the drill rod 1 and the supporting sleeve 301 is reduced, the cutting fluid smoothly enters the workpiece inner hole, the drill bit 101 is cooled, the cutting chips are taken away, the supporting sleeve 301 is soaked in the cutting fluid in advance, the abrasion of the bakelite sleeve is effectively reduced, and the service life of the supporting sleeve.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. The utility model provides a deep hole drilling rod and supporting device which characterized in that: comprises a drill rod (1); a cylindrical pressure head (2) is fixedly arranged at the lower end of the drill rod (1); the right end of the pressure head (2) is fixedly provided with three groups of rectangular spline type supporting strips (3); the drill rod (1) comprises a drill bit (101) and a front guide strip (102), a pair of frosted drill bits (101) are fixedly installed at the front end of the drill rod (1), and the front guide strip (102) is fixedly installed at the front end of each drill bit (101).
2. The deep-hole drill rod and the matching device thereof as claimed in claim 1, wherein: the pressure head (2) comprises a sealing ring (201) and a sealing device (202), a pair of circular sealing rings (201) is fixedly installed at the upper end of the left side of the pressure head (2), and a pair of S-shaped sealing devices (202) is fixedly installed at the rear positions of the sealing rings (201) respectively.
3. The deep-hole drill rod and the matching device thereof as claimed in claim 1, wherein: the spline type supporting strip (3) comprises a supporting sleeve (301), the spline type supporting strip (3) is composed of three groups of cylinders, the supporting sleeve is fixedly installed at the upper end of the spline type supporting strip (3), and the spline type supporting strip (3) is fixedly installed at the center of the left end and the right end of the drill rod (1).
4. The deep-hole drill rod and the matching device thereof as claimed in claim 1, wherein: the drill bit (101) and the front guide strip (102) are on the same horizontal line with the drill rod (1), and the drill bit (101) and the front guide strip (102) are installed on the front side and the rear side of the left end of the drill rod (1).
5. The deep-hole drill rod and the matching device thereof as claimed in claim 1, wherein: and the sealing device (202) and the sealing ring (201) are both fixedly arranged at the upper end of the pressure head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010981039.1A CN112096302A (en) | 2020-09-17 | 2020-09-17 | Deep hole drilling rod and matching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010981039.1A CN112096302A (en) | 2020-09-17 | 2020-09-17 | Deep hole drilling rod and matching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112096302A true CN112096302A (en) | 2020-12-18 |
Family
ID=73759408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010981039.1A Withdrawn CN112096302A (en) | 2020-09-17 | 2020-09-17 | Deep hole drilling rod and matching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112096302A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796677A (en) * | 2021-01-17 | 2021-05-14 | 肥城新查庄地质勘查有限公司 | Drilling equipment for prospecting |
-
2020
- 2020-09-17 CN CN202010981039.1A patent/CN112096302A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796677A (en) * | 2021-01-17 | 2021-05-14 | 肥城新查庄地质勘查有限公司 | Drilling equipment for prospecting |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20201218 |