CN110744305A - Efficient deep hole turning and boring machine and method for machining deep hole by using same - Google Patents

Efficient deep hole turning and boring machine and method for machining deep hole by using same Download PDF

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Publication number
CN110744305A
CN110744305A CN201911085927.9A CN201911085927A CN110744305A CN 110744305 A CN110744305 A CN 110744305A CN 201911085927 A CN201911085927 A CN 201911085927A CN 110744305 A CN110744305 A CN 110744305A
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China
Prior art keywords
boring
turning
hole
boring bar
supporting plate
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CN201911085927.9A
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CN110744305B (en
Inventor
古朝雄
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QINGDAO NPA INDUSTRY Co Ltd
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QINGDAO NPA INDUSTRY Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B41/00Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/02Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
    • B23P23/02Machine tools for performing different machining operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q37/00Metal-working machines, or constructional combinations thereof, built-up from units designed so that at least some of the units can form parts of different machines or combinations; Units therefor in so far as the feature of interchangeability is important
    • B23Q37/002Convertible machines, e.g. from horizontally working into vertically working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Drilling And Boring (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

The invention discloses a high-efficiency deep hole turning and boring machine and a method for processing deep holes by the same, wherein the high-efficiency deep hole turning and boring machine comprises a machine body, a headstock, a turning device, an oil supply device, a boring device, a control system and a cooling liquid system, the oil supply device is arranged in the middle of the machine body, the front end of the oil supply device is provided with a conical seat sleeve, the conical seat sleeve is supported in an oil supply device shell through a bearing, the inner end of the conical seat sleeve is provided with a shaft for sealing and cutting off the outflow of cooling liquid, the outer part of the conical seat sleeve is provided with a splash guard capable of being turned over, the conical seat sleeve is a 3-5-degree conical surface, the oil supply device can be provided with a thimble and a boring cutter guide sleeve, the turning and the boring deep holes can be processed on one machine tool.

Description

Efficient deep hole turning and boring machine and method for machining deep hole by using same
Technical Field
The invention belongs to the technical field of deep and long hole pipe workpiece machining, and particularly relates to a high-efficiency deep hole turning and boring machine and a method for machining a deep hole by using the same.
Background
At present, deep hole boring and excircle processing for long pipe workpieces are generally carried out on a deep hole boring machine and a lathe respectively; due to the reasons of difficult clamping and positioning and the like, the straightness of inner hole processing and the coaxiality of the inner hole and the outer circle are difficult to guarantee, and the processing precision requirement cannot be met.
Disclosure of Invention
The invention aims to provide an efficient deep hole turning and boring machine and a deep hole machining method thereof, and solves the problem that the bore hole straightness is low due to the fact that a workpiece is difficult to be coaxially assembled in the existing deep hole boring machining.
The invention provides a high-efficiency deep-hole turning and boring machine, which comprises a machine body, a headstock, a turning device, an oil feeding device, a boring device, a control system and a cooling liquid system, wherein the machine body is used for supporting the whole boring machine, the headstock is arranged at the front end of the machine body and comprises a box body, a main shaft power motor, a gear speed change system and a chuck, the main shaft power motor is arranged at the front end of the box body, the chuck is arranged on a main shaft extending out of the rear end of the box body, the main shaft power motor is arranged outside the front end of the box body, the control system is arranged near the headstock and comprises an electric control box and a control panel, the cooling liquid system is arranged at the back of the chuck and comprises a cooling liquid collecting cover, a cooling liquid groove, scrap iron, a liquid baffle, a cooling liquid pump, a liquid return pipe and a liquid conveying pipe, the cooling liquid collecting cover is arranged in parallel with the front and the back of the, the back of the operation surface of the oil supply device is connected with a cooling liquid access pipe and is connected with a pressure gauge for displaying the pressure of cooling liquid, the oil supply device is arranged in the middle of the lathe bed, the front end of the oil supply device is provided with a conical seat sleeve, the conical seat sleeve is supported in the shell of the oil supply device through a bearing, a shaft is arranged at the inner end of the conical seat sleeve to seal and separate the outflow of the cooling liquid, a splash guard capable of being turned over is arranged outside the conical seat sleeve, the conical seat sleeve is a 3-8-degree conical surface, the turning device is arranged between the headstock and the oil supply device.
And a thimble or a sealing seat with a boring bar guide sleeve is arranged in the conical seat sleeve.
The lathe bed comprises an inner rack, an outer rack, a liquid return groove and a drag chain.
The boring device comprises a boring bar supporting frame and a boring bar moving supporting plate which are arranged in front and back, the boring bar supporting frame comprises a boring bar dragging plate and a boring bar support, a hand wheel is mounted on the boring bar dragging plate, the boring bar support is mounted on the boring bar dragging plate and provided with an adjusting taper sleeve, an adjusting nut is arranged at the outer end of the adjusting taper sleeve, a semicircular bracket is arranged at the upper part of the boring bar support, the boring bar moving supporting plate is arranged on a lathe bed, a cutter bar rotating power box and a cutter bar rotating motor are arranged on the boring bar moving supporting plate, and a cutter bar moving supporting plate power box and a moving supporting plate power box transmission screw pair are arranged at the tail part.
The boring bar support frame comprises a front boring bar support frame and a rear boring bar support frame.
The turning device comprises a turning tool moving supporting plate, a bracket and a turning tool holder are arranged on the turning tool moving supporting plate, the turning tool holder is arranged on a longitudinal dovetail guide rail on the turning tool moving supporting plate, the turning tool holder can move longitudinally along the dovetail guide rail, the bracket comprises two opposite carrier rollers, and the lower part of the carrier roller is connected with a carrier roller adjusting device.
The method for machining the deep hole by the high-efficiency deep hole turning and boring machine comprises the following steps: (1) manually drilling central holes at two ends of the long cylindrical blank; (2) a thimble is arranged on the oil supply device conical seat sleeve and is fixed by screws; (3) clamping the long cylindrical blank with the central hole processed in the step (1) on a machine tool, aligning and clamping the chuck, propping the central hole at the tail of the workpiece by a thimble, turning the end part and a clamping position, then changing the head of the workpiece for clamping, and turning all the excircle; (4) after the excircle turning is finished, when the thimble is not loosened, a bracket on a tool rest carriage is installed and adjusted to support the workpiece, and the tail of the workpiece is kept not to move; (5) and loosening the oil feeder, detaching the thimble, replacing the boring cutter guide sleeve and the sealing seat, boring the workpiece, and keeping the coaxial precision condition of the central axis during boring processing, thereby ensuring the straightness of the processed inner hole and the coaxial precision of the inner hole and the excircle.
The efficient deep hole turning and boring machine and the method for machining the deep hole have the advantages that the oil supplier can be provided with the ejector pin and the boring cutter guide sleeve, the turning and the boring of the deep hole can be completed on one machine tool, the bracket is arranged, the function of the central bracket is realized, the straightness accuracy of the boring hole and the effect of one machine for multiple purposes and convenience for efficient machining are guaranteed, the machining efficiency and the machining accuracy under the same efficiency can be greatly improved, the efficient deep hole turning and boring machine is suitable for simultaneously machining the inner hole and the outer circle with the diameter phi of 20-500 mm and the length of 2000-8000 mm, and the high accuracy requirements of the straightness and the coaxiality of the inner hole and the outer circle can be met.
Drawings
FIG. 1 is a schematic overall structure of one embodiment of the present invention;
FIG. 2 is a schematic view of the turning device;
FIG. 3 is a schematic view of a thimble mounting structure;
FIG. 4 is a schematic view of a tool guide sleeve;
the figure is marked with:
1. a headstock; 2. a coolant collection hood; 3. a chuck; 4. a bracket; 5. turning a tool rest; 6. ejecting a needle head; 7. a workpiece; 8. a boring cutter guide sleeve; 9. an oil supply device; 10. boring a cutter bar; 11. a boring bar support frame; 12. a cutter bar rotating motor; 13. a bed body; 14. the cutter bar rotates the power box; 15. the cutter bar moves the pallet power box; 16. a spindle power motor.
Detailed Description
The efficient deep-hole lathing and boring machine and the method for machining a deep hole provided by the invention are described in detail below with reference to the accompanying drawings and an embodiment.
Examples
Referring to fig. 1-4, the efficient deep-hole turning and boring machine of the embodiment comprises a machine body 13, a headstock 1, a turning device, an oil supplier 9, a boring device, a control system and a cooling liquid system, wherein the machine body 13 is used for supporting the whole boring machine, the headstock is mounted at the front end of the machine body and comprises a box body, a spindle power motor 16, a gear speed change system and a chuck 3, the spindle power motor 16 is arranged at the front end of the box body, the chuck 3 is arranged on a spindle extending out of the rear end of the box body, the spindle power motor 16 is arranged outside the front end of the box body, the control system is arranged near the headstock and comprises an electric control box and a control panel, the cooling liquid system is arranged at the back of the chuck and comprises a cooling liquid collecting cover 2, a cooling liquid tank, an iron scrap basket, a liquid baffle, a cooling liquid pump, a liquid return pipe and a cooling liquid collecting cover 2 which are arranged in, the liquid conveying pipe is connected with the oil feeding device, the pumped cooling liquid is connected with the oil feeding device, the back of the operation surface of the oil feeding device is connected with the cooling liquid connecting pipe and is connected with a pressure gauge for displaying the pressure of the cooling liquid, the oil feeding device 9 is installed in the middle of the lathe bed 13, the front end of the oil feeding device is provided with a conical seat sleeve, the conical seat sleeve is supported in the shell of the oil feeding device through a bearing, the inner end of the conical seat sleeve is provided with a shaft for sealing and cutting off the outflow of the cooling liquid, the outer part of the conical seat sleeve is provided with a splash guard which can be turned over, the conical seat sleeve is a 3-5-degree conical surface and is convenient to.
Install the thimble in the taper seat cover, the thimble includes installation department and thimble head 6, the installation department is equipped with location chuck and thimble mount table, the thimble mount table is the frustum form, corresponds the installation with the taper seat cover.
And a boring cutter guide sleeve 8 is arranged in the conical seat sleeve.
The boring cutter guide sleeve is provided with a sealing seat.
The lathe bed comprises an inner rack, an outer rack, a liquid return groove and a drag chain.
The boring device comprises a boring bar supporting frame 11 and a boring bar moving supporting plate which are arranged in front and back, the boring bar supporting frame 11 comprises a boring bar dragging plate and a boring bar support, a hand wheel is mounted on the boring bar dragging plate, the boring bar support is mounted on the boring bar dragging plate and is provided with an adjusting taper sleeve, an adjusting nut is arranged at the outer end of the adjusting taper sleeve, a semicircular bracket is arranged at the upper part of the boring bar support, the boring bar moving supporting plate is arranged on a lathe bed, a cutter bar rotating power box 14 and a cutter bar rotating motor 12 are arranged on the boring bar moving supporting plate, a cutter bar moving supporting plate power box 15 and a moving supporting plate power box transmission screw rod pair are arranged at the tail part of the lathe bed.
The boring bar support frame 11 includes a front boring bar support frame and a rear boring bar support frame.
Turning device includes that the lathe tool removes the layer board, the lathe tool removes to be equipped with bracket 4 and lathe tool rest 5 on the layer board, lathe tool rest 5 installs on the lathe tool removes the longitudinal swallow tail guide rail on the layer board, and lathe tool rest 5 can follow swallow tail guide rail longitudinal movement, the bracket includes two relative bearing rollers, bearing roller sub-unit connection bearing roller adjusting device.
The boring bar 10 is mounted on a bar rotating power box 14 and supported by a boring bar support frame 11.
The method for machining the deep hole by the high-efficiency deep hole turning and boring machine comprises the following steps: (1) manually drilling central holes at two ends of the long cylindrical blank; (2) a thimble is arranged on the oil supply device conical seat sleeve and is fixed by screws; (3) clamping the long cylindrical blank with the central hole processed in the step (1) on a machine tool, aligning and clamping the chuck, propping the central hole at the tail of the workpiece 7 by a thimble, turning the end part and a clamping position, then changing the head of the workpiece for clamping, and turning all the excircle; (4) after the excircle is turned, when the thimble is not loosened, a bracket on a tool rest carriage is installed and adjusted to support the workpiece, and the tail of the workpiece is kept not to move, namely the workpiece is kept coaxial with the machining central axis of a machine tool; (5) and loosening the oil feeder, detaching the thimble, replacing the boring cutter guide sleeve and the sealing seat, boring the workpiece, and keeping the coaxial precision condition of the central axis during boring processing, thereby ensuring the straightness of the processed inner hole and the coaxial precision of the inner hole and the excircle.

Claims (9)

1. The utility model provides a high-efficient deep hole car boring machine which characterized in that: the lathe comprises a lathe body, a lathe head, a turning device, an oil feeding device, a boring device, a control system and a cooling liquid system, wherein the lathe head is arranged at the front end of the lathe body and comprises a box body, a main shaft power motor, a gear speed change system and a chuck, the main shaft power motor is arranged at the front end of the box body, the chuck is arranged on a main shaft extending out of the rear end of the box body, the cooling liquid system is arranged on the back of the chuck and comprises a cooling liquid collecting cover, a cooling liquid groove, an iron scrap basket, a liquid baffle plate, a cooling liquid pump, a liquid return pipe and a liquid conveying pipe, the cooling liquid collecting cover and the chuck are arranged in parallel, the liquid conveying pipe is connected with the oil feeding device, the oil feeding device is arranged in the middle of the lathe body, a cone seat sleeve is arranged at the front end of the oil feeding device and supported in the shell through a bearing, a shaft seal is arranged at the inner end to cut off, the turning device is arranged between the headstock and the oil feeder, and the boring device is arranged at the tail of the lathe body.
2. The efficient deep-hole lathing and boring machine according to claim 1, characterized in that: and a thimble is arranged in the conical seat sleeve.
3. The efficient deep-hole lathing and boring machine according to claim 1, characterized in that: and a boring cutter guide sleeve is arranged in the conical seat sleeve.
4. The efficient deep-hole lathing and boring machine according to claim 3, characterized in that: the boring cutter guide sleeve is provided with a sealing seat.
5. The efficient deep-hole lathing and boring machine according to claim 1, characterized in that: the lathe bed comprises an inner rack, an outer rack, a liquid return groove and a drag chain.
6. The efficient deep-hole lathing and boring machine according to claim 1, characterized in that: the boring device comprises a boring bar supporting frame and a boring bar moving supporting plate which are arranged in front and at back, the boring bar supporting frame comprises a boring bar dragging plate and a boring bar support, a hand wheel is mounted on the boring bar dragging plate, the boring bar support is mounted on the boring bar dragging plate and provided with an adjusting taper sleeve, an adjusting nut is arranged at the outer end of the adjusting taper sleeve, the boring bar moving supporting plate is arranged on a lathe bed, a cutter bar rotating power box and a cutter bar rotating motor are arranged on the boring bar moving supporting plate, and a cutter bar moving supporting plate power box and a moving supporting plate power box transmission screw pair are arranged at the tail of the lathe bed.
7. The efficient deep-hole lathing and boring machine according to claim 6, characterized in that: the boring bar support frame comprises a front boring bar support frame and a rear boring bar support frame.
8. The efficient deep-hole lathing and boring machine according to claim 1, characterized in that: the turning device comprises a turning tool moving supporting plate, a bracket and a turning tool holder are arranged on the turning tool moving supporting plate, the turning tool holder is arranged on a longitudinal dovetail guide rail on the turning tool moving supporting plate, the bracket comprises two opposite carrier rollers, and the lower part of the carrier roller is connected with a carrier roller adjusting device.
9. A method for machining deep holes by using the high-efficiency deep-hole lathing and boring machine according to any one of claims 1 to 8, which is characterized by comprising the following steps of: the method comprises the following steps: (1) manually drilling central holes at two ends of the long cylindrical blank; (2) a thimble is arranged on the oil supply device conical seat sleeve and is fixed by screws; (3) clamping the long cylindrical blank with the central hole processed in the step (1) on a machine tool, aligning and clamping the chuck, propping the central hole at the tail of the workpiece by a thimble, turning the end part and a clamping position, then changing the head of the workpiece for clamping, and turning all the excircle; (4) after the excircle turning is finished, when the thimble is not loosened, a bracket on a tool rest carriage is installed and adjusted to support the workpiece, and the tail of the workpiece is kept not to move; (5) and loosening the oil feeder, detaching the thimble, replacing the boring cutter guide sleeve and the sealing seat, boring the workpiece, and keeping the coaxial precision condition of the central axis during boring processing, thereby ensuring the straightness of the processed inner hole and the coaxial precision of the inner hole and the excircle.
CN201911085927.9A 2019-11-08 2019-11-08 Efficient deep hole turning and boring machine and method for machining deep hole by using same Active CN110744305B (en)

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CN201911085927.9A CN110744305B (en) 2019-11-08 2019-11-08 Efficient deep hole turning and boring machine and method for machining deep hole by using same

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Application Number Priority Date Filing Date Title
CN201911085927.9A CN110744305B (en) 2019-11-08 2019-11-08 Efficient deep hole turning and boring machine and method for machining deep hole by using same

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CN110744305B CN110744305B (en) 2021-09-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114131283A (en) * 2021-11-05 2022-03-04 西安理工大学 Remanufacturing and repairing device and method for inner wall of large sleeve part
CN117206569A (en) * 2023-11-09 2023-12-12 江苏江河机械制造有限公司 Boring lathe for large wear-resistant pipeline

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201283436Y (en) * 2008-01-15 2009-08-05 德州普利森机械制造有限公司 Numerical control deep hole drilling borer
CN201702568U (en) * 2010-03-15 2011-01-12 山东普利森集团有限公司 Numeral control deep hole turning and boring lathe
CN204396895U (en) * 2015-01-23 2015-06-17 陕西东岳机电设备有限公司 A kind of lathe with deep hole drilling boring function
CN207681541U (en) * 2017-11-21 2018-08-03 湖北浩顶液压科技股份有限公司 A kind of deep hole boring machine of lathe improvement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201283436Y (en) * 2008-01-15 2009-08-05 德州普利森机械制造有限公司 Numerical control deep hole drilling borer
CN201702568U (en) * 2010-03-15 2011-01-12 山东普利森集团有限公司 Numeral control deep hole turning and boring lathe
CN204396895U (en) * 2015-01-23 2015-06-17 陕西东岳机电设备有限公司 A kind of lathe with deep hole drilling boring function
CN207681541U (en) * 2017-11-21 2018-08-03 湖北浩顶液压科技股份有限公司 A kind of deep hole boring machine of lathe improvement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王保元: "深孔钻膛床授油器拖板传动***的分析计算", 《制造技术与机床》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114131283A (en) * 2021-11-05 2022-03-04 西安理工大学 Remanufacturing and repairing device and method for inner wall of large sleeve part
CN114131283B (en) * 2021-11-05 2022-11-01 西安理工大学 Remanufacturing and repairing device and method for inner wall of large sleeve part
CN117206569A (en) * 2023-11-09 2023-12-12 江苏江河机械制造有限公司 Boring lathe for large wear-resistant pipeline
CN117206569B (en) * 2023-11-09 2024-01-30 江苏江河机械制造有限公司 Boring lathe for large wear-resistant pipeline

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