CN102528526B - Retractable swing boring and milling head - Google Patents
Retractable swing boring and milling head Download PDFInfo
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- CN102528526B CN102528526B CN 201210007458 CN201210007458A CN102528526B CN 102528526 B CN102528526 B CN 102528526B CN 201210007458 CN201210007458 CN 201210007458 CN 201210007458 A CN201210007458 A CN 201210007458A CN 102528526 B CN102528526 B CN 102528526B
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Abstract
The invention discloses a boring and milling head, which comprises a hollow screw rod, a lifting device, an arresting device and a main shaft head, wherein the lifting device and the arresting device are arranged on a frame; the main shaft head is arranged at the lower end of the hollow screw rod; the hollow screw rod is used for driving the main shaft head to move up and down through the lifting device and is locked through the arresting device; the arresting device comprises a locking gear, a first arresting nut and a second arresting nut; the first and second arresting nuts are sleeved on the hollow screw rod in a superposed mode; a boss is arranged at the axial end of the locking gear and is pressed against the first or second arresting nut; an external thread is formed at the periphery of the boss; and the boss is used to be in threaded connection with an external fixed box. According to the boring and milling head, the structure of the conventional boring and milling head is changed, and the screw rod is used as a driving device of the boring and milling head, so that the machining range of a boring and milling machine tool is expanded; the boring and milling head has a simple and novel structure and is convenient to maintain; and simultaneously, the screw rod can be automatically locked, so that the response speed of the machine tool is increased, and the operation reliability of the boring and milling head is improved.
Description
Technical field
The invention belongs to the Milling Process technical field, be specifically related to a kind of boring and milling head outer that can be used for abnormal curved surface processing, limited processing space Machining of Curved Surface in deep-hole boring milling, inclined hole-drilling, the hole.
Background technology
There are a lot of large-size boxes and the processing of hole negative camber in industries such as shipbuilding, nuclear power, chemical industry, for service life and the crudy that guarantees workpiece, just must guarantee the globality of parts, yet because the restriction of processing space uses traditional boring and milling head outer to process.Such as the large-size box in the large-scale bend pipe of nuclear power industry, the processing of gun tube mixed rifle, the shipbuilding industry etc., because the restriction of existing boring and milling machine tooling, must split part or seek other more complicated processing methods and process, so just can affect service behaviour and the working (machining) efficiency of parts.The retractable swing boring and milling head outer is mainly used in numerical control boring and milling class lathe, and this boring and milling head outer can realize the gyration of moving up and down of plane and A/C axle, in conjunction with planar movement and the rotation of workbench, can realize the five-axle linkage processing of hole negative camber.This boring and milling head outer can be used for abnormal curved surface processing, limited processing space Machining of Curved Surface and large-scale bend pipe boring and milling etc. in deep-hole boring milling, the hole.
At present, typically the structure of deep hole working machine main shaft is that Cutting tool installation manner is at the front end of spindle rod, by the main shaft drive of main spindle box, because when carrying out deep hole machining, spindle rod goes out long deeply, with regard to the necessary bracing frame supports main shaft bar of using.Elevating mechanism drives headstock bed realization by headstock bed bearing and moves up and down.The shortcoming of a maximum of this type of boring and milling head outer structure is that the free degree of boring and milling head outer is inadequate, can only carry out the processing of simple bore hole and milling flat, can not process curved surface and large-scale bend pipe.
Summary of the invention
Purpose of the present invention just is the shortcoming for existing deep hole machining boring and milling lathe, boring and milling head outer and driving mechanism thereof are improved, a kind of depth of field hole drill, boring are provided, mill function in the boring and milling head outer of one, it is simple and reliable for structure, overcome the inadequate and processing limitation of the existing deep-hole boring milling machine tool free degree, can be used for abnormal curved surface processing, limited processing space Machining of Curved Surface and large-scale bend pipe boring-mill work etc. in deep-hole boring milling, rat holing, the hole.
The objective of the invention is to be achieved through the following technical solutions:
A kind of boring and milling head outer structure, comprise hollow screw mandrel, lowering or hoisting gear, stop device and main tapping, it is characterized in that, described lowering or hoisting gear and stop device are installed on the frame, main tapping is installed in described hollow screw mandrel lower end, and this hollow screw mandrel drives main tapping by lowering or hoisting gear and moves up and down, and by described stop device hollow screw mandrel is fixed, wherein
Described stop device comprises locking gear, the first retainer nut and the second retainer nut, described the first retainer nut and the second retainer nut are stacked to be packed on the hollow screw mandrel, described locking gear axial end portion is provided with boss, this boss lower end and upper retainer nut's butt, this boss periphery has external screw thread, is used for being threaded with the static housing of outside;
After screw mandrel turned to working position, described locking gear was driven in rotation, and relatively hollow screw mandrel moves downward, and compressed upper screw rod nut and lower feed screw nut, realized the locking to screw mandrel.
Lowering or hoisting gear of the present invention comprises Worm and worm-wheel gearing, taper roll bearing and sealing device, described worm gear and feed screw nut as an integral installation on taper roll bearing, motor drives worm and gear by shaft coupling, moves up and down thereby drive screw mandrel.
Lowering or hoisting gear of the present invention and stop device are installed on the frame, main tapping is installed in the screw mandrel lower end, and screw mandrel moves up and down by the lowering or hoisting gear main tapping, when the screw mandrel stop motion, because the self-locking that the machine tooling vibrations cause was lost efficacy, adopt stop device that screw mandrel is fixed for preventing screw mandrel.
Hollow screw mandrel of the present invention, its lower end use bolt to link to each other with main tapping, and screw mandrel drives main tapping and moves up and down, and the main tapping cable can pass from the centre bore of screw mandrel, thereby cause on the cable winding screw mandrel when preventing the main tapping rotation.
The first retainer nut and the gap between the second retainer nut of screw mandrel stop device of the present invention are predetermined to be 0.5-1 times of screw lead.When main tapping moves to the workpiece Working position, the screw body stop motion, motor drives the pinion rotation by belt pulley, pinion is passed to gear wheel with power, gear wheel is down done trace in rotation mobile, retainer nut on the compression, thus so that the frictional force of contact-making surface increase between screw mandrel and two retainer nuts reaches the purpose of locking screw mandrel.
Retractable swing boring and milling head outer main tapping of the present invention, it act as workpiece is carried out multiaxis processing, and this device C axle torque motor, A axle torque motor and electric main shaft form.C axle torque motor upper end is fixed with hollow screw mandrel and is connected, and the lower end drives A axle torque motor and electric main shaft is done gyration.A axle torque motor always has two, lays respectively at the left and right sides of electric main shaft, can drive electric main shaft and do swing on the A direction of principal axis.Different cutters can be installed according to different processing requests in electricity main shaft lower end.
Advantage of the present invention and effect are:
1. the present invention is directed to the shortcoming of existing deep hole machining boring and milling lathe, boring and milling head outer and driving mechanism thereof are improved, thereby a kind of depth of field hole drill, boring are provided, mill function in the boring and milling head outer structure of one, overcome the inadequate and processing limitation of the existing deep-hole boring milling machine tool free degree, can be used for abnormal curved surface processing, limited processing space Machining of Curved Surface and large-scale bend pipe boring-mill work etc. in deep-hole boring milling, rat holing, the hole.
2. automatic stopping device of the present invention adopts double lead nut structure collocation stop motor, can realize the auto lock of screw mandrel, improves the response speed of lathe and the reliability of boring and milling head outer work.
3. the present invention has changed the in the past structure of boring and milling head outer, drives boring and milling head outer by screw mandrel, has expanded the range of work of boring and milling lathe, and its novelty simple in structure is easy to maintenance.
Description of drawings
Fig. 1 is lifting and the stop device cutaway view of retractable swing boring and milling head outer of the present invention;
Fig. 2 is that the A of retractable swing boring and milling head outer of the present invention is to cutaway view;
Fig. 3 is the main tapping schematic diagram of retractable swing boring and milling head outer of the present invention;
Fig. 4 is the gearwheel part schematic diagram of retractable swing boring and milling head outer of the present invention;
Fig. 5 is the screw mandrel retainer nut schematic diagram of retractable swing boring and milling head outer of the present invention.
The specific embodiment
The present invention is described in detail with reference to the accompanying drawings.
Retractable swing boring and milling head outer of the present invention comprises five major parts, hollow screw mandrel 1, lowering or hoisting gear, stop device and main tapping.
Fig. 1 is retractable swing boring and milling head outer of the present invention lifting and stop device, Fig. 3 is retractable swing boring and milling head outer main-shaft head structure part of the present invention, motor is controlled the motion of screw mandrel 1 by driving lifting and stop device, simultaneously screw mandrel drive oscillating spindle head moves up and down.
As shown in Figure 1, retractable swing boring and milling head outer lowering or hoisting gear, it act as the drive screw mandrel and moves up and down, and this device is comprised of casing 12, taper roll bearing 13, Worm gear feed screw nut 14, base 15, worm screw 16 and sealing ring 18 and 19 in the present embodiment.Because bearing need to bear certain radial load, so select taper roll bearing 13 to support Worm gear feed screw nut 14, motor is by shaft coupling and worm screw 16 connection for transmissions, driving worm screw 16 during electric machine rotation rotates, driving simultaneously Worm gear feed screw nut 14 rotates, thereby make screw mandrel 1 realize moving up and down, cabinet base 15 is bolted and is fixed on the machine tool frame.
As shown in Figure 1, retractable swing boring and milling head outer stop device, it act as locking screw mandrel 1, when described screw mandrel 1 moves to suitable Working position, and the stop motion of worm drive motor, because screw mandrel 1 and Worm gear feed screw nut 14 itself can be realized self-locking, the screw mandrel stop motion adds man-hour but work as lathe, the situation that self-locking was lost efficacy can occur shaking, this just requires to adopt stop device that screw mandrel 1 is locked, to improve the reliability of machine tooling.
Shown in Fig. 2,4 and 5, this device is comprised of power transmission shaft 2, shaft end nut 3, belt pulley 4, housing plate 5, pinion 6, deep groove ball bearing 7, hubcap 8, gear wheel 9, upper retainer nut 9, lower retainer nut 10, casing 20 and sealing ring 18 and 19 in the present embodiment.Boss on gear wheel 9 lower ends are provided with axially, hollow screw mandrel passes boss, this boss periphery is provided with external screw thread, there are threaded engagement in itself and casing 20, the boss lower end is connected on the retainer nut 10, upward the predeterminable range between retainer nut 10 and the lower retainer nut 11 is 0.5-1 screw mandrel pitch, retainer nut 10 is consistent with 11 profiles, all cylindrical, the screwed hole that centre drill can cooperate with the screw mandrel realization again is with four uniform radial protrusions outward, and this projection can embed in the casing draw-in groove, thereby it is consistent that casing and retainer nut are moved, and can not rotate freely between screw mandrel and the retainer nut when retainer nut is not subjected to the pressure of gear wheel 9.After the screw mandrel stop motion, locking motor starts and drives pinion 6 rotations by belt pulley 4, pinion 6 is passed to gear wheel 9 with power, gear wheel 9 moves downward a bit of distance extruding retainer nut 10 when rotating, thereby make retainer nut 10 and 11 and screw mandrel 1 between frictional force increase, reach the purpose of locking screw mandrel.
As shown in Figure 3, retractable swing boring and milling head outer main tapping, it act as workpiece is carried out multiaxis processing, and this device is comprised of C axle torque motor 22, A axle torque motor 23 and electric main shaft 24 in the present embodiment.C axle torque motor upper end is fixed with hollow screw mandrel 1 and is connected, and the lower end drives A axle torque motor 23 and electric main shaft 24 is done gyration.A axle torque motor 23 always has two, lays respectively at the left and right sides of electric main shaft, can drive electric main shaft 24 and do swing on the A direction of principal axis.Different cutters can be installed according to different processing requests in electricity main shaft 24 lower ends.
The hollow screw mandrel 1 of retractable swing boring and milling head outer, it act as the drive main tapping and moves up and down, to adopt the purpose of hollow screw mandrel be when preventing the rotation of screw mandrel lower end main tapping motor service cable is wrapped on the screw mandrel to this screw mandrel in the present embodiment, adopts that service cable can be lower end motor power supply by the screw mandrel centre bore behind the hollow screw mandrel.
Claims (8)
1. boring and milling head outer, comprise hollow screw mandrel (1), lowering or hoisting gear, stop device and main tapping, it is characterized in that, described lowering or hoisting gear and stop device are installed on the frame, described main tapping is installed in described hollow screw mandrel (1) lower end, and this hollow screw mandrel (1) drives main tapping by lowering or hoisting gear and moves up and down, and by described stop device hollow screw mandrel (1) is locked, wherein
Described stop device comprises locking gear (9), the first retainer nut (10) and the second retainer nut (11), described the first retainer nut (10) and the second retainer nut (11) are stacked to be sleeved on the hollow screw mandrel (1), be provided with boss on described locking gear (9) axial end portion, this boss and first or second retainer nut's butt, this boss periphery has external screw thread, is used for being threaded with the static housing of outside;
After hollow screw mandrel (1) turned to working position, described locking gear (9) was driven in rotation, and relatively hollow screw mandrel (1) moves downward, and compressed the first retainer nut (10) and the second retainer nut (11), realized the locking to hollow screw mandrel (1).
2. boring and milling head outer according to claim 1, it is characterized in that, described lowering or hoisting gear comprises Worm and worm-wheel gearing (16) and taper roll bearing (13), worm gear in the described Worm and worm-wheel gearing (16) and feed screw nut's integral installation are on taper roll bearing (13), the feed screw nut of motor-driven worm-and-wheel gear (16) rotates, and moves up and down thereby drive the hollow screw mandrel (1) that meshes with this feed screw nut.
3. boring and milling head outer according to claim 1 and 2, it is characterized in that, be provided with C axle torque motor (22), A axle torque motor (23) and electric main shaft (24) on the described main tapping, C axle torque motor upper end is fixed with hollow screw mandrel (1) and is connected, the lower end drives A axle torque motor (23) and electric main shaft (24) is done gyration, A axle torque motor (23) is two, lay respectively at the left and right sides of electric main shaft, be used for driving electric main shaft (24) and do to swing on the A direction of principal axis, electric main shaft (24) lower end is used for installing the boring and milling cutting knife tool.
4. boring and milling head outer according to claim 1 and 2, it is characterized in that, described the first retainer nut (10) is consistent with the second retainer nut (11) profile, all be cylindrical, the center is provided with the screwed hole that can be connected with hollow screw mandrel (1), nut is arranged with uniform radial protrusion outward, and this projection is used for embedding in the static housing of stop device outside.
5. boring and milling head outer according to claim 3, it is characterized in that, described the first retainer nut (10) is consistent with the second retainer nut (11) profile, all be cylindrical, the center is provided with the screwed hole that can be connected with hollow screw mandrel (1), nut is arranged with uniform radial protrusion outward, and this projection is used for embedding in the static housing of stop device outside.
6. according to claim 1 and 2 or 5 described boring and milling head outer, it is characterized in that the central through hole that service cable passes described hollow screw mandrel (1) is lower end motor power supply.
7. boring and milling head outer according to claim 3 is characterized in that, the central through hole that service cable passes described hollow screw mandrel (1) is lower end motor power supply.
8. boring and milling head outer according to claim 4 is characterized in that, the central through hole that service cable passes described hollow screw mandrel (1) is lower end motor power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210007458 CN102528526B (en) | 2012-01-11 | 2012-01-11 | Retractable swing boring and milling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210007458 CN102528526B (en) | 2012-01-11 | 2012-01-11 | Retractable swing boring and milling head |
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| Publication Number | Publication Date |
|---|---|
| CN102528526A CN102528526A (en) | 2012-07-04 |
| CN102528526B true CN102528526B (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210007458 Active CN102528526B (en) | 2012-01-11 | 2012-01-11 | Retractable swing boring and milling head |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500202B (en) * | 2016-01-13 | 2017-11-10 | 湖南宇晶机器股份有限公司 | A kind of fine setting locking device for grinding machine |
| CN109551285B (en) * | 2019-01-07 | 2019-12-31 | 湖南坤鼎数控科技有限公司 | A large-scale gantry milling machine table screw drive structure |
| CN110193744A (en) * | 2019-06-28 | 2019-09-03 | 环球工业机械（东莞）有限公司 | Boring and milling spindle gearing |
| CN110227946B (en) * | 2019-06-28 | 2024-09-27 | 环球工业机械（东莞）有限公司 | Six-axis boring and milling machine tool |
| CN115502485B (en) * | 2022-10-20 | 2023-06-20 | 天津第一机床有限公司 | Impact-resistant adjusting device of feed ball screw directly connected with cutter spindle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3186249A (en) * | 1962-05-30 | 1965-06-01 | Hans Deckel | Carriage drive for machine tools |
| CN2601140Y (en) * | 2003-01-02 | 2004-01-28 | 任恢跃 | Self-extension reversible spindle |
| CN1958230A (en) * | 2006-10-17 | 2007-05-09 | 陈硕 | Power unit capable of unloading colter rapidly |
| CN201815909U (en) * | 2010-10-14 | 2011-05-04 | 莱芜市数控机床研究所 | Boring and milling head for gantry numerical control machine tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4071080B2 (en) * | 2002-10-01 | 2008-04-02 | 大肯精密株式会社 | Axis feeder |
-
2012
- 2012-01-11 CN CN 201210007458 patent/CN102528526B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3186249A (en) * | 1962-05-30 | 1965-06-01 | Hans Deckel | Carriage drive for machine tools |
| CN2601140Y (en) * | 2003-01-02 | 2004-01-28 | 任恢跃 | Self-extension reversible spindle |
| CN1958230A (en) * | 2006-10-17 | 2007-05-09 | 陈硕 | Power unit capable of unloading colter rapidly |
| CN201815909U (en) * | 2010-10-14 | 2011-05-04 | 莱芜市数控机床研究所 | Boring and milling head for gantry numerical control machine tool |
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| Publication number | Publication date |
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| CN102528526A (en) | 2012-07-04 |
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