CN104999349A - Deep-hole grinding device with front electric spindle - Google Patents
Deep-hole grinding device with front electric spindle Download PDFInfo
- Publication number
- CN104999349A CN104999349A CN201510285906.7A CN201510285906A CN104999349A CN 104999349 A CN104999349 A CN 104999349A CN 201510285906 A CN201510285906 A CN 201510285906A CN 104999349 A CN104999349 A CN 104999349A
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- CN
- China
- Prior art keywords
- electro spindle
- credit
- brace
- electric spindle
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
Abstract
The invention discloses a deep-hole grinding device with a front electric spindle. The device comprises a grinding wheel, a long supporting arm and a driving device. The electric spindle is adopted as the driving device. The driving device is installed at the front end of the long supporting arm. The grinding wheel is directly installed on a rotating shaft of the output end of the electric spindle. An installation flange is arranged at the rear end of long supporting arm. The installation flange is connected with a machine tool installation frame. The long supporting arm is of a hollow structure. The hollow structure of the long supporting arm is in the shape of a special hole. A power line of the electric spindle, a cooling liquid pipeline of the electric spindle and a workpiece cooling liquid pipeline pass the interior of the long supporting arm. The workpiece cooling liquid pipeline in a shell of the electric spindle leads workpiece cooling liquid to a workpiece grinding portion through a hose. According to the deep-hole grinding system, a transmission chain is shortened, the system rigidity can be improved, the grinding speed and efficiency can be increased, the deep-hole grinding quality is improved, and the problems of poor system rigidity, grinding wheel fluttering and system resonance caused when a rotating shaft of a transmission spindle is excessively long are avoided.
Description
Technical field
The present invention relates to the deep hole machining grinding attachment of the electro spindle in a kind of electromechanical engineering field, field of machining, the deep Hole processing unit (plant) that especially a kind of electro spindle is preposition.
Background technology
Deep Hole processing belongs to accurately machined category, and processing capacity is few, precision is high.The finishing surface of the works such as High Rotation Speed emery wheel are mainly used in current grinding, reach design processing request.Because revolving part exists amount of unbalance during High Rotation Speed, make emery wheel produce larger flutter, the workpiece accuracy of abrasive machining device processing reduces greatly, and the quality of processing work does not reach designing requirement.This problem is one of technical bottleneck of solution not yet in effect always in deep Hole processing industry.Main shaft 19 rotation that tradition deep Hole processing unit (plant) (as shown in Figure 4) utilizes motor 24 to drive draw ratio large is carried out deep Hole processing and is had larger limitation.
At present, the wobble problem that deep Hole processing unit (plant) exists improves mainly through following three kinds of approach: (1) changes support arm to the supporting way of main shaft, increase supplemental support, (2) make the operating frequency of machine away from machine intrinsic frequency, (3) use the larger material of rigidity instead as spindle material.Along with people propose more and more higher requirement to working depth, crudy, although these methods can improve deep Hole processing characteristics to a certain extent, also has certain gap with the requirement of development of modern industry.Therefore, need to develop a kind of novel deep Hole processing unit (plant), changed by structural essence, overcome traditional abrasive machining device poor rigidity, shortcoming that vibratory output is large, improve because drive span causes greatly the problem of deep Hole device insufficient rigidity, the vibratory output of deep Hole processing unit (plant) is reduced, obviously improves the quality of deep Hole processing unit (plant) processing work.
Summary of the invention
The object of the invention is, in order to overcome deep Hole processing unit (plant) due to poor rigidity, to cause emery wheel flutter, affect the problem of work piece quality, propose the performance that the preposition deep Hole processing unit (plant) of a kind of electro spindle improves deep hole drilling apparatus.
For achieving the above object, the present invention adopts following technical scheme:
The deep Hole processing unit (plant) that a kind of electro spindle is preposition, comprise emery wheel, draw money on credit brace and driving arrangement, it is characterized in that: described driving arrangement is electro spindle (2), change electro spindle (2) be installed on brace of drawing money on credit before end, emery wheel is directly installed in the output rotating shaft of electro spindle, draw money on credit the rear end of brace with a mounting flange, and this mounting flange is connected with Installing machine tool frame.
In the deep Hole processing unit (plant) that above-mentioned electro spindle is preposition, described brace inside of drawing money on credit is for hollow structure, the hollow structure of brace of drawing money on credit is irregularly-shaped hole shape, and coolant duct and the work-piece cools liquid pipeline of electro spindle power line, electro spindle pass through from brace inside of drawing money on credit.
In the deep Hole processing unit (plant) that above-mentioned electro spindle is preposition, work-piece cools liquid, by the work-piece cools liquid passage in the shell of electro spindle, causes workpiece grinding position through flexible pipe.
The present invention compared with prior art, has following substantial feature and technological progress:
Compared with the mechanism of traditional deep Hole processing unit (plant), the present invention proposes the new construction with essence change: (1) abrasive grinding wheel is directly installed on the output revolving shaft of electro spindle, omit traditional deep Hole processing unit (plant) and adopt this intermediate link of main shaft transmission campaign; (2) driving arrangement uses electro spindle, and abandon that volume is large, weight greatly and the conventional motors of not easily installing; (3) electro spindle adopts muzzle-loading (as shown in Figure 1), the driving arrangement of traditional deep Hole device generally uses motor (as shown in Figure 3), the mounting means of motor is rear-loading type, the output revolving shaft that emery wheel is directly installed on electro spindle changes and utilizes driven by motor main shaft in the past, the grinder structure of emery wheel rotary grinding is driven again by main shaft, the present invention makes the more compact structure of deep Hole processing unit (plant), makes the vanishing of transmission distance; (4) the irregularly-shaped hole structural rate tradition deep Hole processing unit (plant) support arm inner circular structural of brace inside employing hollow of drawing money on credit has larger system stiffness.Based on above design reach increase deep Hole system stiffness object, improve grinding speed and grinding efficiency, improve the quality of deep Hole processing.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment in the present invention;
Fig. 2 is the structural representation of electro spindle in Fig. 1;
Fig. 3 is coolant duct connecting interface in Fig. 1 and hollow support arm partial schematic diagram;
Fig. 4 is traditional deep Hole system of processing structural representation;
In figure: 1 emery wheel, 2 electro spindle, 3 draw money on credit brace, 4 mounting flanges, 5 spring bearings, 6 rotors, 7 spring bearings, 8 spring bearings, 9 pre-load adjustment devices, 10 electro spindle cooling pipes, 11 nuts, 12 Workpiece cooling devices, 13 main shafts, 14 connection path, 1301 connecting interfaces, 15 work-piece cools liquid passages, 16 pre-load nuts, 17 emery wheels, 18 spring bearings, 19 support arms, 20 main shafts, 21 spring bearings, 22 machine tool frame, 23 shaft couplings, 24 motors.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Embodiment one:
See Fig. 1, the deep Hole processing unit (plant) that this electro spindle is preposition, comprises emery wheel, draw money on credit brace and driving arrangement.It is characterized in that described driving arrangement adopts electro spindle, this is installed on the front end of brace of drawing money on credit, and emery wheel is directly installed in the output rotating shaft of electro spindle, and the rear end of brace of drawing money on credit is with a mounting flange, and this mounting flange is connected with Installing machine tool frame.
Embodiment two:
See Fig. 1 ~ Fig. 3, the present embodiment is substantially identical with embodiment one, and special feature is as follows:
Draw money on credit brace inside for hollow structure, the hollow structure of brace of drawing money on credit is irregularly-shaped hole shape, the power line of electro spindle, electro spindle coolant duct and work-piece cools liquid pipeline pass through from brace inside of drawing money on credit, work-piece cools liquid passage in the shell of electro spindle, causes workpiece grinding position through a flexible pipe by work-piece cools liquid.
Embodiment three:
See Fig. 1, the deep Hole processing unit (plant) that this electro spindle is preposition, comprise emery wheel 1, electro spindle 2, brace 3 of drawing money on credit, mounting flange 4, Workpiece cooling device 12.The present embodiment has abandoned the scheme that traditional deep Hole system applies tediously long spindle drive, and have employed the structure that electro spindle 2 Direct driver emery wheel rotates, abrasive grinding wheel 1 is directly installed on electro spindle output rotation axis, makes transmission distance be zero.Its medium plain emery wheel 1 utilizes nut 11 to be fixed on electro spindle 2 output rotation axis, emery wheel 1 is carried out to the full location of six-freedom degree, electro spindle 2 and brace 3 of drawing money on credit are connected (see 1301 connecting interfaces) by soket head cap screw, electro spindle 2 rear end face coordinates removing axial rotation with brace 3 front end inner cylinder face of drawing money on credit, move axially the location of four outer frees degree, electro spindle 2 rear end cascaded surface and support arm 3 front end surface move axially location, achieve the restriction of electro spindle 2 except other five frees degree of axle except axially turning, electro spindle 2 rear end is provided with the connecting interface 1301 that be connected corresponding to brace 3 of drawing money on credit, connecting interface 1301 can use screw thread, the various ways such as interference connection, this programme adopts thread connecting mode.Brace 3 of drawing money on credit is connected with adpting flange 4.
In this deep Hole constructional device, the structural representation of electro spindle as shown in Figure 2, and wherein electric main shaft structure is made up of structures such as exporting main shaft 13, spring bearing 5, motor stator 6, rotor 7, spring bearing 8, pre-load adjustment device 9, connection path 13, electro spindle coolant duct 10.The end cap of electro spindle shown in embodiment Fig. 2 is connected with housing screw.Motor cooling bath and work-piece cools liquid passage 15 is arranged in the shell of electro spindle, cooling fluid in electro spindle cooling bath through electro spindle coolant duct 10 to flow to from cooling liquid outlet or flow out, reciprocation cycle, work-piece cools liquid passes through from the work-piece cools liquid passage 15 electro spindle shell; Connection path 14 is for placing the power line of electro spindle, and the power line path of design is passed through from hollow support arm 3; The spring bearing (5,8) of electro spindle adopts one end to move about the fixing structure in one end, and the pretension of bearing utilizes and realizes by pressing spring, and the size preloaded utilizes pre-load adjustment device 9 to regulate; Electro spindle is fixed on support arm and fixes with soket head cap screw.
Claims (3)
1. the deep Hole processing unit (plant) that an electro spindle is preposition, comprise emery wheel (1), brace of drawing money on credit (3) and driving arrangement, it is characterized in that described driving arrangement adopts electro spindle (2), this is installed on the front end of brace of drawing money on credit (3), emery wheel (1) is directly installed in the output rotating shaft of electro spindle (2), draw money on credit the rear end of brace (3) with a mounting flange (4), and this mounting flange (4) is connected with Installing machine tool frame.
2. the deep Hole processing unit (plant) that a kind of electro spindle is preposition according to claim 1, it is characterized in that: described brace of drawing money on credit (3) inside is hollow structure, the hollow structure of brace (3) of drawing money on credit is irregularly-shaped hole shape, and the power line (13) of electro spindle (2), electro spindle coolant duct (10) and work-piece cools liquid pipeline pass through from brace of drawing money on credit (3) inside.
3. the deep Hole processing unit (plant) that a kind of electro spindle is preposition according to claim 1, is characterized in that: the work-piece cools liquid passage (15) in the shell of described electro spindle (2), through a flexible pipe (12), work-piece cools liquid is caused workpiece grinding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285906.7A CN104999349A (en) | 2015-05-29 | 2015-05-29 | Deep-hole grinding device with front electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285906.7A CN104999349A (en) | 2015-05-29 | 2015-05-29 | Deep-hole grinding device with front electric spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104999349A true CN104999349A (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510285906.7A Pending CN104999349A (en) | 2015-05-29 | 2015-05-29 | Deep-hole grinding device with front electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104999349A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922090A (en) * | 2016-04-27 | 2016-09-07 | 中航动力株洲航空零部件制造有限公司 | Grinding wheel rod for high precision inner hole processing and processing method |
| CN105945662A (en) * | 2016-05-11 | 2016-09-21 | 重庆红江机械有限责任公司 | Internal spray booster type grinding wheel rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW411307B (en) * | 1998-09-25 | 2000-11-11 | Okamoto Machine Tool Works | Cup wheel-type grinding wheel and surface grinding device having it |
| CN201799930U (en) * | 2010-09-30 | 2011-04-20 | 安阳莱必泰机械有限公司 | Grinding spindle lengthening mechanism |
| CN201979356U (en) * | 2010-07-12 | 2011-09-21 | 蔡亚军 | Grinding head used for end face grinding |
| CN202428318U (en) * | 2011-12-05 | 2012-09-12 | 无锡机床股份有限公司 | High-precision deep hole grinding electric spindle structure |
| CN204262916U (en) * | 2014-08-11 | 2015-04-15 | 南通京鼎数控设备有限公司 | Grinding deep hole workpiece special grinding device |
-
2015
- 2015-05-29 CN CN201510285906.7A patent/CN104999349A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW411307B (en) * | 1998-09-25 | 2000-11-11 | Okamoto Machine Tool Works | Cup wheel-type grinding wheel and surface grinding device having it |
| CN201979356U (en) * | 2010-07-12 | 2011-09-21 | 蔡亚军 | Grinding head used for end face grinding |
| CN201799930U (en) * | 2010-09-30 | 2011-04-20 | 安阳莱必泰机械有限公司 | Grinding spindle lengthening mechanism |
| CN202428318U (en) * | 2011-12-05 | 2012-09-12 | 无锡机床股份有限公司 | High-precision deep hole grinding electric spindle structure |
| CN204262916U (en) * | 2014-08-11 | 2015-04-15 | 南通京鼎数控设备有限公司 | Grinding deep hole workpiece special grinding device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922090A (en) * | 2016-04-27 | 2016-09-07 | 中航动力株洲航空零部件制造有限公司 | Grinding wheel rod for high precision inner hole processing and processing method |
| CN105945662A (en) * | 2016-05-11 | 2016-09-21 | 重庆红江机械有限责任公司 | Internal spray booster type grinding wheel rod |
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Application publication date: 20151028 |
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| WD01 | Invention patent application deemed withdrawn after publication |