CN102078970A - Large-diameter longhole jacking processing process as well as process equipment - Google Patents
Large-diameter longhole jacking processing process as well as process equipment Download PDFInfo
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- CN102078970A CN102078970A CN 201010608230 CN201010608230A CN102078970A CN 102078970 A CN102078970 A CN 102078970A CN 201010608230 CN201010608230 CN 201010608230 CN 201010608230 A CN201010608230 A CN 201010608230A CN 102078970 A CN102078970 A CN 102078970A
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Abstract
The invention relates to a large-diameter longhole jacking processing process as well as process equipment, belonging to the technical field of mechanical manufacture. In the processing process and process equipment, a large-diameter longhole jacking tool is designed on a heavy horizontal lathe, a guiding bearing frame and a feeding box are arranged; the jacking tool comprises a jacking head and a jacking rod, wherein the jacking head comprises a cutter body, a cutter head and a supporting key, wherein eight chip grooves are uniformly distributed on the excircle of the cutter body; a hard alloy cutting blade is welded at the front end of the cutter head and embedded and welded on the supporting key body; the jacking rod is provided with an inner rod and an outer rod, the tail end of the outer rod is connected with an oil inlet of a cutting oil pump and hermetically connected; and the inner rod is a closed cylinder. Due to the adoption of the process equipment, the solid shaft large-diameter longhole jacking process is simplified, the processing range of the horizontal lathe is expanded, the technical problems of small jacking material diameter, shallow depth, material core dropping, easy jacking eccentricity and malposition, low production efficiency, and the like in the processing process are solved, the cost is reduced and the efficiency as well as the product quality and the competition are improved.
Description
Technical field
The invention belongs to machinery manufacturing technology field, relate to solid shafting class large diameter, deep borehole jacking processing technology and technological equipment.
Background technology
At present, it is φ 1400mm that a kind of large-scale shaft workpiece outside diameter is arranged, and length is about 8000mm, is solid blanks through forging, and the method for this blank by jacking is separated into cylindrical shell and two parts of mandrel, and traditional jacking process solution is as follows:
(1), on lathe, the both ends of the surface car is gone out annular pilot hole;
(2), earlier at one end the face jacking degree of depth to half of Workpiece length;
(3), workpiece tune, at the other end jacking till communicate;
(4), extract the middle material core of workpiece out.
Traditional jacking bar is a cylinder type, has only one group of outer bar and cover stub bar to form.Big palette by lathe drives jacking bar length feed; Tradition jacking Tool in Cutting sword is that scarfweld is being overlapped on the stub bar, and the cutting edge width is 12mm.
The shortcoming of processing according to the technological equipment and the technology of traditional jacking is:
(1), traditional jacking bar inside is hollow, in the increase along with the jacking degree of depth, the material core of part finished by middle jacking because gravity is can nature sagging, after the material core is sagging can with the inwall collision friction of jacking bar, increase jacking bar feed resistance, also can aggravate the wearing and tearing of jacking bar simultaneously.
(2) traditional jacking Tool in Cutting tread degree is 12mm, and the iron filings size after the processing is just bigger, and the gap of iron filings and chip area has only 2 ~ 3mm, and the too little chip removal in gap is not smooth, must frequently withdraw from cutter cleaning iron filings, and production efficiency is low.
(3) use the lathe big palette to drive the jacking bar feed, because centripetal force can not act on workpiece centre of gyration position fully, the feeding resistance increases, and the planker wearing and tearing also sharply increase, so the lathe loss of significance is just than comparatively fast.
(4) must be first before the workpiece end face jacking at the lathe annular pilot hole of getting on the bus out, otherwise can't determine the center of jacking; But task is tighter on the lathe, so the production cycle can't guarantee.
(5), the jacking diameter of bore maximum of traditional jacking technological equipment is about φ 500mm, depth capacity is about about 3000 ~ 3500mm, processes above-mentioned workpiece with it, though be that the both ends of the surface enemy comes jacking, also can't overlap logical.
(6), because the jacking degree of depth is bigger, and eccentric phenomena appears in jacking hole and cylindrical easily, and the both ends of the surface enemy carries out jacking in the time of especially, the jacking hole of both ends of the surface is easy to produce dislocation, the material core of centre can't separate with exterior cylinder.
(7), the material core of extracting can only be an optical axis, can't extract step axle (end or mid diameter are big).
Summary of the invention
In order to overcome the prior art deficiency, the invention provides a kind of large diameter, deep borehole jacking processing technology and technological equipment, to solve little, the depth as shallow of jacking diameter, the material core is sagging, the easily eccentric dislocation of jacking, chip removal is not smooth, can't extract problems such as step axle production efficiency is low.
The technical solution adopted for the present invention to solve the technical problems is the jacking cutter that is provided with large diameter, deep borehole on heavy horizontal lathe, is equipped with guidance supporting rack and feed box, forms new processing technology.
The jacking cutter is made up of cover stub bar and jacking bar.
The cover stub bar form by cutter hub, cutter head, support key, the even branch of cutter hub cylindrical eight chip areas; Front end at cutter head is welded with the carbide cutting sword, and it is simple and easy to do to change cutter head; The cutting edge that supported on the key body scarfweld.Carbide cutting sharpening on the cutter head is carried out the branch bits for the notch cuttype sword, and the cutting width of each cutting edge has only 4 ~ 6mm.The width of each cutting edge is less than half of width of chip area on the cutter head.
The jacking bar is made up of interior bar and outer bar, and inside and outside bar is the seamless steel pipe pipeline; The terminal cutting oil pump oil-in that connects of outer bar is tightly connected, and outer bar front end is connected with the jacking cutter by screw thread pair.Interior bar is the cylindrical shell of a sealing, and front end is equipped with 60 ° ~ 75 ° cone centres, and terminal end face has centre bore.
Adopt above-mentioned cutter and technological equipment can finish the processing of large diameter, deep borehole jacking, concrete processing step is as follows:
The first step: workpiece is the clamping centering on horizontal lathe, in the jacking in the top end face centre bore that heads into workpiece of bar front end, tail stock is top to head in the centre bore of rod rear end face in the jacking, the top locking of tailstock also applies pretightning force, can prevent that like this material core is because gravity sag in the jacking process.The pretightning force of tail stock varies in weight according to workpiece and selects.
Second step: lathe chuck drives workpiece and rotates, and feed box drives the outer bar of jacking and the jacking cutter is done length feed, overlaps to the drawing requirement degree of depth or workpiece cover logical; The linear velocity of workpiece is controlled at 70 ~ 90m/min during jacking, and the amount of feeding selects 0.1 ~ 0.35mm/ to change, and guarantees that cooling oil pump is working properly, and effect can be fine.
The 3rd step: the workpiece cover then cuts off workpiece with cutting knife to prescribed depth at jacking degree of depth place, extract the material core again out; If cover is logical, jacking residue material core in the middle of directly extracting out.
Adopting good effect of the present invention is to have simplified solid shafting class large diameter, deep borehole jacking technology, be provided with special-purpose jacking frock and cutter, increased the range of work of horizontal lathe, solved cleverly in process and solved little, the depth as shallow of jacking diameter, the material core is sagging, problems such as jacking is easily eccentric to misplace, and production efficiency is low.Extracting the material core out can also use as other part blank, thereby has reduced cost, has improved efficient, promotes product quality and competitiveness.Solved and thought the problem of deep hole jacking chip removal difficulty in the industry always.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples:
Accompanying drawing 1 is a jacking technological equipment structural representation;
Accompanying drawing 2 jacking cutter structure schematic diagrames;
1-1 horizontal lathe headstock, 1-2 workpiece, 1-3 centre frames, 1-4 material core, 1-5 jacking cutter, the forward and backward support of 1-6,1-7 award oily device, 1-8 sealing technology equipment, 1-9 feed box, 1-10 tail stock among Fig. 1.
5-1 cutter head among Fig. 2,5-2 support that key, 5-3 cutter hub, 5-4 are top, bar in the outer bar of 5-5 jacking, 5-6 jacking.
The specific embodiment
Shown in Fig. 1-2: the technical solution adopted for the present invention to solve the technical problems is the jacking cutter that is provided with large diameter, deep borehole on heavy horizontal lathe, is equipped with guidance supporting rack and feed box, forms new processing technology.
The jacking cutter is made up of cover stub bar and jacking bar.
The cover stub bar by cutter hub 5-3, cutter head 5-1, support key 5-2 and form, the material of cutter hub 5-3 has been selected 9SiCr for use, the even branch of cutter hub 5-3 cylindrical eight chip areas; Cutter head 5-1 material is selected GCr15 for use, but is welded with carbide alloy as cutting edge at the front end of cutter head 5-1, gets final product if can directly change cutter head 5-1 after cutting edge damages; Supporting key 5-2 material is 9SiCr, the cutting edge that supported on the key 5-2 body scarfweld.In order to reduce the appearance and size of iron filings, the carbide cutting sharpening on the cutter head 5-1 is carried out the branch bits for the notch cuttype sword, the cutting width of each cutting edge has only 5mm.For the ease of the discharge of iron filings, the width of last each cutting edge of cutter head 5-1 is less than the width of chip area.Solved and thought the problem of deep hole jacking chip removal difficulty in the industry always.
Front end is equipped with top, and terminal end face has centre bore.
The jacking bar is made up of interior bar 5-6 and outer bar 5-5, and interior bar 5-6, outer bar 5-5 select for use seamless steel pipe to make.Outer bar 5-5 is terminal to connect cutting oil pump oil-in, and wants good seal, and outer bar 5-5 front end is connected with the jacking cutter by screw thread pair.Interior bar 5-6 is the cylindrical shell of a sealing, and front end is equipped with 70 ° of cone centre 5-4, and terminal end face has centre bore.
The guiding bracing frame can be adjusted rational bearing position at any time.Feed box vertically moves on the lathe guide rail, thereby realizes the feed motion of outer bar 5-5 of jacking and jacking cutter 1-5.
Adopt above-mentioned cutter and technological equipment can finish the processing of large diameter, deep borehole jacking, concrete processing step is as follows:
The first step: workpiece 1-2 is the clamping centering on horizontal lathe, the top 5-4 of bar front end heads in the end face centre bore of workpiece 1-2 in the jacking, tail stock 1-10 is top to head in the centre bore of bar 5-6 rear end face in the jacking, the top locking of tailstock 1-10 also applies pretightning force, can prevent that like this material core is because gravity sag in the jacking process.The pretightning force of tail stock 1-10 varies in weight according to workpiece and selects.
Second step: lathe chuck drives workpiece 1-2 and rotates, and feed box 1-9 drives the outer bar 5-5 of jacking and the jacking cutter is done length feed, overlaps to the drawing requirement degree of depth or workpiece cover logical; The linear velocity of workpiece 1-2 is controlled at 85m/min during jacking, and the amount of feeding selects 0.2mm/ to change, and guarantees that cooling oil pump is working properly, and effect can be fine.
The 3rd step: the workpiece cover then cuts off workpiece 1-2 with cutting knife to prescribed depth at jacking degree of depth place, extracts material core 1-4 again out; If cover is logical, jacking residue material core 1-4 in the middle of directly extracting out.
Claims (6)
1. a large diameter, deep borehole jacking processing technology is equipped, mainly form by horizontal lathe headstock, workpiece, jacking cutter, guidance supporting rack, feed box, tail stock, it is characterized in that on heavy horizontal lathe, being provided with the jacking cutter of large diameter, deep borehole, be equipped with guidance supporting rack and feed box, the jacking cutter is made up of cover stub bar and jacking bar, the cover stub bar form by cutter hub, cutter head, support key, the even branch of cutter hub cylindrical eight chip areas; Front end at cutter head is welded with the carbide cutting sword; The carbide cutting sword that supported on the key body scarfweld; The jacking bar is made up of interior bar and outer bar, and the terminal cutting oil pump oil-in that connects of outer bar is tightly connected; Interior bar is the cylindrical shell of a sealing, and front end is equipped with 60 ° ~ 75 ° cone centres, and terminal end face has centre bore.
2. large diameter, deep borehole jacking processing technology is characterized in that comprising following processing step:
The first step: workpiece is the clamping centering on horizontal lathe, in the jacking in the top end face centre bore that heads into workpiece of bar front end, tail stock is top to head in the centre bore of rod rear end face in the jacking, the top locking of tailstock also applies pretightning force, can prevent that like this material core is because gravity sag in the jacking process; The pretightning force of tail stock varies in weight according to workpiece and selects;
Second step: lathe chuck drives workpiece and rotates, and feed box drives the outer bar of jacking and the jacking cutter is done length feed, overlaps to the drawing requirement degree of depth or workpiece cover logical; The linear velocity of workpiece is controlled at 70 ~ 90m/min during jacking, and the amount of feeding selects 0.1 ~ 0.35mm/ to change, and guarantees that cooling oil pump is working properly, and effect can be fine;
The 3rd step: the workpiece cover then cuts off workpiece with cutting knife to prescribed depth at jacking degree of depth place, extract the material core again out; If cover is logical, jacking residue material core in the middle of directly extracting out.
3. large diameter, deep borehole jacking processing technology equipment according to claim 1 is characterized in that the carbide cutting sharpening on the cutter head is carried out branch bits, the cutting width 4 ~ 6mm of each cutting edge for the notch cuttype sword.
4. according to claim 1 or 3 described large diameter, deep borehole jacking processing technologys equipment, it is characterized in that the width of each cutting edge on the cutter head is less than half of width of chip area.
5. large diameter, deep borehole jacking processing technology equipment according to claim 1 is characterized in that the inside and outside bar of jacking bar is the seamless steel pipe pipeline.
6. large diameter, deep borehole jacking processing technology is equipped according to claim 1 or 5, it is characterized in that outer bar front end is connected with the jacking cutter by screw thread pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010608230 CN102078970A (en) | 2010-12-28 | 2010-12-28 | Large-diameter longhole jacking processing process as well as process equipment |
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| CN 201010608230 CN102078970A (en) | 2010-12-28 | 2010-12-28 | Large-diameter longhole jacking processing process as well as process equipment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111649A (en) * | 2012-12-21 | 2013-05-22 | 天水风动机械有限责任公司 | Method of removing residual core materials of oil drill rod joint |
| CN104439518A (en) * | 2014-10-30 | 2015-03-25 | 东莞市青麦田数码科技有限公司 | Internal cooling trepanning machine |
| CN108145206A (en) * | 2017-12-18 | 2018-06-12 | 西安理工大学 | A kind of type horizontal processing machine tool for jacking deep hole machining |
| CN108453276A (en) * | 2018-02-12 | 2018-08-28 | 西安理工大学 | A method of being used for the deep hole jacking vibration machining of hard brittle material |
| CN108890056A (en) * | 2018-06-21 | 2018-11-27 | 西安理工大学 | Hard brittle material deep hole drilling apparatus and method based on pulse feature spark discharge |
| CN109048368A (en) * | 2018-09-05 | 2018-12-21 | 中国航发动力股份有限公司 | A kind of semienclosed slot processing method of abnormally-structured part |
| CN109227064A (en) * | 2018-11-27 | 2019-01-18 | 沈阳航天新光集团有限公司 | Deep hole sealing lip processing method |
| CN110014267A (en) * | 2019-03-28 | 2019-07-16 | 二重（德阳）重型装备有限公司 | Large-scale bend pipe processing method |
| CN110238413A (en) * | 2019-07-22 | 2019-09-17 | 沈阳露天采矿设备制造有限公司 | A kind of device carrying out overlaying processing for mine excavator centerpivot |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101185977A (en) * | 2007-11-28 | 2008-05-28 | 安阳鑫盛机床有限公司 | Non-penetrated hole jacking back push type cutting device |
-
2010
- 2010-12-28 CN CN 201010608230 patent/CN102078970A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101185977A (en) * | 2007-11-28 | 2008-05-28 | 安阳鑫盛机床有限公司 | Non-penetrated hole jacking back push type cutting device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111649A (en) * | 2012-12-21 | 2013-05-22 | 天水风动机械有限责任公司 | Method of removing residual core materials of oil drill rod joint |
| CN104439518A (en) * | 2014-10-30 | 2015-03-25 | 东莞市青麦田数码科技有限公司 | Internal cooling trepanning machine |
| CN108145206A (en) * | 2017-12-18 | 2018-06-12 | 西安理工大学 | A kind of type horizontal processing machine tool for jacking deep hole machining |
| CN108145206B (en) * | 2017-12-18 | 2019-08-16 | 西安理工大学 | A kind of type horizontal processing machine tool for jacking deep hole machining |
| CN108453276A (en) * | 2018-02-12 | 2018-08-28 | 西安理工大学 | A method of being used for the deep hole jacking vibration machining of hard brittle material |
| CN108890056A (en) * | 2018-06-21 | 2018-11-27 | 西安理工大学 | Hard brittle material deep hole drilling apparatus and method based on pulse feature spark discharge |
| CN109048368A (en) * | 2018-09-05 | 2018-12-21 | 中国航发动力股份有限公司 | A kind of semienclosed slot processing method of abnormally-structured part |
| CN109227064A (en) * | 2018-11-27 | 2019-01-18 | 沈阳航天新光集团有限公司 | Deep hole sealing lip processing method |
| CN110014267A (en) * | 2019-03-28 | 2019-07-16 | 二重（德阳）重型装备有限公司 | Large-scale bend pipe processing method |
| CN110014267B (en) * | 2019-03-28 | 2020-06-23 | 二重（德阳）重型装备有限公司 | Large-scale bent pipe machining method |
| CN110238413A (en) * | 2019-07-22 | 2019-09-17 | 沈阳露天采矿设备制造有限公司 | A kind of device carrying out overlaying processing for mine excavator centerpivot |
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Application publication date: 20110601 |