CN105328237A - Cylindrical hole boring device - Google Patents
Cylindrical hole boring device Download PDFInfo
- Publication number
- CN105328237A CN105328237A CN201510797231.4A CN201510797231A CN105328237A CN 105328237 A CN105328237 A CN 105328237A CN 201510797231 A CN201510797231 A CN 201510797231A CN 105328237 A CN105328237 A CN 105328237A
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- CN
- China
- Prior art keywords
- gear
- bearing block
- boring bar
- bearing
- supported
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/06—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring conical holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/30—Additional gear with one or more working-spindles attachable to the main working-spindle and mounting the additional gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/12—Mechanical drives with means for varying the speed ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/385—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously using a gear and rack mechanism or a friction wheel co-operating with a rail
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2220/00—Details of turning, boring or drilling processes
- B23B2220/52—Whirling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to the technical field of machining, and specifically relates to a cylindrical hole boring device. The device comprises a motor, a boring rod, a supporting adjusting mechanism, a power transmission system, a transmission screw and a tool moving system. The cylindrical hole boring device can effectively solve the problems such as poor rigidity, difficult adjusting, and large ovality of a processed cylindrical hole of a current cylindrical hole processing device; in addition, the processing precision of the device is high, and the processing quality is stable; the device is simple to assemble, clamp, adjust and correct, and easy to operate, and can be applied to field processing without any large equipment, so that the safety and reliability can be ensured, and the processing cost can be saved; the automation degree of the cylindrical hole processing process is greatly improved, thus the labor intensity of workers can be greatly reduced, and the damage of dust pollution to the bodies of the workers can be effectively solved; the production efficiency is improved, and the production cost is reduced. Compared with previous processing methods, the device has the advantages that the cost control, product quality and safety performance are improved to varying degree, and the production efficiency is greatly improved.
Description
Technical field
The present invention relates to Machining Technology field, be specifically related to a kind of straight boring device.
Background technology
Cannot meet the demands, so corresponding device for on-site processing must be designed for needing the current existing equipment of overlength stenotic type straight boring of on-the-spot processing.Due to workpiece spot size to be processed limit and the diameter of boring bar infinitely cannot be increased, if in order to the processing carrying out cylindrical hole, and artificially increase the draw ratio of boring bar, the significantly weakening of boring bar intensity, rigidity will inevitably be caused, three bearings and a motive power before, during and after dividing in the boring bar of existing boring device.Owing to having installed four external force strong points additional on the boring bar of elongated specification like this, whichsoever the external force strong point has produced difference at clamping timing, all can cause boring bar flexural deformation, and after installing, the linearity of boring bar is difficult to be guaranteed.Boring bar is now in a kind of diastrophic state, and boring bar one end needs dress to hang boring technological equipment and knife rest, therefore increases the flexural deformation of boring bar further.Through on-the-spot on-the-spot investigation, the first spring bearing of end, boring bar one end is only because of after bolt unclamps, boring bar flexural deformation of axial line just reaches more than 6.5mm, therefore will present the quality problems such as corrugated, ovality, rough surface with the rudder blade conical hole surface that existing boring device is processed.
In order to eliminate the above-mentioned quality problems of the rear workpiece of processing, air operated portable grinder must be utilized to carry out reconditioning to machined surface by workman, to meet the quality requirement of product.Grinding method so not only at substantial manpower and inefficiency, the reconditioning work of a usual cylindrical hole need drop into 4 ~ 5 people, and 10 ~ 15 days consuming time, not only operating personnel's labour intensity was large, and contact with emery wheel dust for a long time, larger harm is caused to the healthy of operating personnel.
Summary of the invention
The object of the invention is to provide a kind of straight boring device for the deficiencies in the prior art, not only efficiently solve existing cylindrical hole processing unit (plant) to there is poor rigidity, regulate difficulty, the problem such as the ovality of the cylindrical hole processed is larger, and clamping adjustment is simple, be easy to operation, with low cost, can significantly reduce operating personnel's labour intensity, efficiently solve the actual bodily harm that operating personnel's dust pollution brings, enhance productivity, reduce production cost.
The present invention is achieved through the following technical solutions this object:
A kind of straight boring device, comprising: motor, boring bar, support adjustment mechanism, power drive system, drive screw and feeding system; It is characterized in that: motor by power transmission to boring bar; One end of boring bar is supported by the ball bearing I in bearing block I, tail end is supported by the ball bearing IV in bearing block IV, bearing block I and bearing block IV is supported by support adjustment mechanism, support adjustment mechanism can support and adjust boring bar center line with band processing work center line consistent; The cylindrical of boring bar has the chute of a strip; Drive screw is positioned at the chute of boring bar, and its one end is supported and fixed on the tail end of chute by supporting bearing base, and the other end is connected with power drive system by Hooks coupling universal coupling, and feeding system is arranged on drive screw.
Power drive system comprises: master gear, ball bearing I and bearing block I, ball bearing II and bearing block II, power transmission shaft I, power transmission shaft II; Master gear coordinates with boring bar keyway, and end is by nut check; Boring bar is supported by the ball bearing I in bearing block I, and end cap fixedly seals bearing block I; Bearing block I is supported by the ball bearing II in bearing block II, and by nut check fixed bearing block II end, bearing block II is a duplicate gear, comprises gear VI and gear VII; Bearing block I is welded and fixed bearing block III, power transmission shaft I is supported by the roller bearing III in bearing block III, and end cap fixedly seals bearing block III; On power transmission shaft I install from gear and gear V, master gear with from gears meshing, gear V engages with gear VI; Power transmission shaft II is supported by the sliding bearing in the plain bearing housing of boring bar updip skewed slot end winding support, gear VIII by nut check is installed in one end, gear VIII engages with the gear VII on bearing block II, and the other end of power transmission shaft II is connected with drive screw by Hooks coupling universal coupling.
Feeding system comprises: sliding sleeve, positive stop key, travelling nut, knife rest, cutter; Sliding sleeve is placed on the cylindrical of boring bar, is coordinated with boring bar keyway by positive stop key and travelling nut; Boring bar has the chute of strip, positive stop key and travelling nut can be made to slide in sliding tray; Drive screw passes travelling nut and coordinates with travelling nut inner hole thread; Cutting tool installation manner is on knife rest, and knife rest is fixed on sliding sleeve.
Further, master gear is a duplicate gear, comprises gear I and gear II; Gear III and gear IV is comprised from gear; Gear I and gear III engages, and gear II engages with gear IV; But gear I and gear III, is in engagement when gear II is different from gear IV, and there is number of teeth difference between gear I and gear VI, between gear II and gear VI, and above-mentioned number of teeth difference is not identical, to obtain different Boring preciseness.
Recommend ground, the number of teeth difference between gear I and gear VI is 2, number of teeth difference between gear II and gear VI is 4.
Further, the support adjustment mechanism at boring bar two ends comprises: support steel bushing, adjusting nut, and supporting steel bushing is a band steel steel bushing, and is supported on workbench; Adjusting nut is distributed on supporting steel and puts and coordinate with supporting steel external threading; Conflict on the bearing block I of boring bar one end and on the bearing block IV of boring bar tail end in the bottom of adjusting nut; Adjust adjusting nut and the center line of changeable boring bar and the center line of workpiece consistent.
The course of work of straight boring device of the present invention is as follows:
Power transmission is rotated to boring bar by motor, the driven gear on the driving gear drive power transmission shaft I on boring bar and gear V; Because gear V engages with the gear VI on bearing block II, gear VI and gear VII is linkage gear, thus the gear VIII on the power transmission shaft II on boring bar can be driven to rotate, and the drive screw be therefore attached thereto obtains rotary power; Travelling nut in feeding system and drive screw threaded engagement, the rotating of drive screw just can drive the knife rest on travelling nut and cutter to seesaw along boring bar chute, therefore completes the boring processing of cylindrical hole.
Wherein, the movement velocity that the number of teeth difference between described driving gear from gear VI can make cutter movable different, thus realize different requirement on machining accuracy.
Relative to prior art, beneficial effect of the present invention is:
1, straight boring device of the present invention not only efficiently solves existing cylindrical hole processing unit (plant) and there is poor rigidity, regulates difficulty, the machining difficult problems such as the ovality of the cylindrical hole processed is larger, and machining accuracy is high, can obtain stable crudy.
2, straight boring device clamping of the present invention adjustment is simple, is easy to operation, and can be applicable to on-the-spot processing, without the need to dropping into main equipment, safety and reliability, has saved processing charges.
3, straight boring device of the present invention substantially increases the automaticity of cylindrical hole process, can significantly reduce operating personnel's labour intensity, efficiently solve the actual bodily harm that operating personnel's dust pollution brings, enhance productivity, and reduces production cost.
4, straight boring apparatus structure of the present invention is simple, be easy to operation, manufacturing cost extremely low (only needing 4000-5000 unit), and product can be made to obtain stable crudy, compared with processing method in the past, all have improvement in various degree from cost control, product quality, security performance etc., production efficiency significantly improves.
Accompanying drawing explanation
Fig. 1 is the structural representation of straight boring device of the present invention.
Fig. 2 is the sectional view along A-A line in Fig. 1.
Fig. 3 is the sectional view along B-B line in Fig. 1.
In figure: 1-boring bar; 2-drive screw; 3-bearing block I; 4-ball bearing I; 5-bearing block II; 6-ball bearing II; 7-bearing block III; 8-ball bearing III; 9-bearing block IV; 10-ball bearing IV; 11-supporting bearing base; 12-Hooks coupling universal coupling; 13-power transmission shaft I; 14-power transmission shaft II; 15-gear I; 16-gear II; 17-gear III; 18-gear IV; 19-gear V; 20-gear VI; 21-gear VII; 22-gear VIII; 23-plain bearing housing; 24-sliding bearing; 25-sliding sleeve; 26-positive stop key; 27-travelling nut; 28-knife rest; 29-cutter; 31-support steel bushing; 32-adjusting nut; 33-nut; 34-end cap.
Detailed description of the invention
Describe the present invention below in conjunction with drawings and the specific embodiments.
Embodiment 1.
As Figure 1-3, a kind of straight boring device of the present embodiment, motor, boring bar 1, support adjustment mechanism, power drive system, drive screw 2 and feeding system; Described motor by power transmission to boring bar 1; One end of boring bar 1 is supported by the ball bearing I4 in bearing block I3, tail end is supported by the ball bearing IV10 in bearing block IV9, bearing block I3 and bearing block IV9 is supported by support adjustment mechanism, support adjustment mechanism can support and adjust boring bar 1 center line with band processing work center line consistent; The cylindrical of boring bar 1 has the chute of a strip; Drive screw 2 is positioned at the chute of boring bar 1, and its one end is supported and fixed on the tail end of chute by supporting bearing base 11, and the other end is connected with power drive system by Hooks coupling universal coupling 12, and feeding system is arranged on drive screw 2;
Described power drive system comprises: master gear, bearing block I3 and ball bearing I4, bearing block II5 and ball bearing II6, power transmission shaft I13, power transmission shaft II14; Master gear coordinates with boring bar 1 keyway, and end is locked by nut 33; Boring bar 1 is supported by the ball bearing I4 in bearing block I3, and end cap 34 fixedly seals bearing block I3; Bearing block I3 is supported by the ball bearing II6 in bearing block II5, and to be locked bearing block II5 end by nut 33, bearing block II5 is a duplicate gear, comprises gear VI20 and gear VII21; Bearing block I3 is welded and fixed bearing block III7, power transmission shaft I13 is supported by the roller bearing III8 in bearing block III7, and end cap 34 fixedly seals bearing block III7; On power transmission shaft I13 install from gear and gear V19, master gear with from gears meshing, gear V19 engages with gear VI20; Power transmission shaft II14 is supported by the sliding bearing 24 in the plain bearing housing 23 of boring bar 1 updip skewed slot end winding support, one end is installed hobbing machine VIII22 and is locked by nut 33, hobbing machine VIII22 engages with the gear VII21 on bearing block II5, and the other end of power transmission shaft II14 is connected with drive screw 2 by Hooks coupling universal coupling 12;
Described feeding system comprises: sliding sleeve 25, positive stop key 26, travelling nut 27, knife rest 28, cutter 29; Sliding sleeve 25 is placed on the cylindrical of boring bar 1, is coordinated with boring bar 1 keyway by positive stop key 26 and travelling nut 27; Boring bar 1 has the chute of strip, positive stop key 26 and travelling nut 27 can be made to slide in sliding tray; Drive screw 2 passes travelling nut 27 and coordinates with travelling nut 27 inner hole thread; Cutter 29 is arranged on knife rest 28, and knife rest 28 is fixed on sliding sleeve 25.
Further, master gear is a duplicate gear, comprises gear I15 and gear II16; Gear III17 and gear IV18 is comprised from gear; Gear I15 and gear III17 engages, and gear II16 engages with gear IV18; But gear I15 and gear III17, is in engagement when gear II16 is different from gear IV18, and there is number of teeth difference between gear I15 and gear VI20, between gear II16 and gear VI20, and above-mentioned number of teeth difference is not identical, to obtain different Boring preciseness.
Recommend ground, the number of teeth difference between gear I15 and gear V20I is 2, number of teeth difference between gear II16 and gear VI20 is 4.
Further, the support adjustment mechanism at boring bar 1 two ends comprises: support steel bushing 31, adjusting nut 32, and supporting steel bushing 31 is a band steel steel bushing, and is supported on workbench; Adjusting nut 32 be distributed on support on steel bushing 31 and with support steel bushing 31 threaded engagement; Conflict on the bearing block I3 of boring bar 1 one end and on the bearing block IV9 of boring bar 1 tail end in the bottom of adjusting nut 32; Adjustment the adjusting nut 32 i.e. center line of changeable boring bar 1 and the center line of workpiece consistent.
The course of work of straight boring device of the present invention is as follows:
Power transmission is rotated to boring bar 1 by motor, the driven gear on the driving gear drive power transmission shaft I13 on boring bar 1 and gear V19; Because gear V19 engages with the gear VI20 on bearing block II5, gear VI20 and gear VII21 is linkage gear, thus the hobbing machine VIII22 on the power transmission shaft II14 on boring bar 1 can be driven to rotate, and the drive screw 2 be therefore attached thereto obtains rotary power; Travelling nut 27 in feeding system and drive screw 2 threaded engagement, the rotating of drive screw 2 just can drive the knife rest 28 on travelling nut 27 and cutter 29 to seesaw along boring bar 1 chute, therefore completes the boring processing of cylindrical hole.
The movement velocity that number of teeth difference between driving gear from gear VI20 can make cutter 29 movable different, thus realize different requirement on machining accuracy.
Diameter due to this processing unit (plant) boring bar is Φ 150mm, overall length is about 1.5 meters, whole device only has two bearings, and the distance of bearings point is 1.2 meters, change that existing processing tapered hole apparatus diameter is little only has Φ 110mm, length reaches 6 meters, and fulcrum support has wait factors at 4, no matter from intensity, rigidity etc. all meet instructions for use.
The above embodiment only have expressed some embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (4)
1. a straight boring device, comprises motor, boring bar, support adjustment mechanism, power drive system, drive screw and feeding system, it is characterized in that:
Described power drive system comprises master gear, ball bearing I and bearing block I, ball bearing II and bearing block II, power transmission shaft I, power transmission shaft II; Master gear and boring bar keyway are connected, boring bar is supported by the ball bearing I in bearing block I, bearing block I is supported by the ball bearing II in bearing block II, described bearing block II is a duplicate gear, comprises gear VI and gear VII, bearing block I is welded and fixed bearing block III, power transmission shaft I is supported by the roller bearing III in bearing block III, power transmission shaft I installs from gear and gear V, and master gear is connected with from gears meshing, and gear V and gear VI is connected with a joggle; Power transmission shaft II is supported by the sliding bearing in the plain bearing housing be arranged on boring bar, gear VIII by nut check is installed in one end, gear VII on gear VIII and bearing block II is connected with a joggle, and the other end of power transmission shaft II is connected with drive screw by Hooks coupling universal coupling;
Described feeding system comprises sliding sleeve, positive stop key, travelling nut, knife rest, cutter; Sliding sleeve is sheathed on the periphery of boring bar, is coordinated with boring bar keyway by positive stop key and travelling nut; Boring bar has the chute of strip, positive stop key and travelling nut can be made to slide in sliding tray; Drive screw passes travelling nut and coordinates with travelling nut inner hole thread; Cutting tool installation manner is on knife rest, and knife rest is fixed on sliding sleeve;
Described motor and boring bar are in transmission connection, one end of boring bar is supported by the ball bearing I in bearing block I, tail end is supported by the ball bearing IV in bearing block IV, bearing block I and bearing block IV is supported by support adjustment mechanism, and support adjustment mechanism is for supporting and adjusting boring bar center line and work centre line to be processed is consistent; The cylindrical of boring bar has the chute of a strip; Drive screw is positioned at the chute of boring bar, and its one end is supported and fixed on the tail end of chute by supporting bearing base, and the other end is connected with power drive system by Hooks coupling universal coupling, and feeding system is arranged on drive screw.
2. straight boring device according to claim 1, it is characterized in that: described master gear is a duplicate gear, comprise gear I and gear II, describedly comprise gear III and gear IV from gear, gear I and gear III is connected with a joggle, and gear II and gear IV is connected with a joggle; , described gear I and gear III, gear II and gear IV non-concurrent are in engagement, and there is number of teeth difference between gear I and gear VI, there is number of teeth difference between gear II and gear VI, and above-mentioned two number of teeth differences are not identical.
3. straight boring device according to claim 2, is characterized in that: the number of teeth difference between described gear I and gear VI is 2, and the number of teeth difference between gear II and gear VI is 4.
4. straight boring device according to claim 1, it is characterized in that: the support adjustment mechanism at described boring bar two ends comprises support steel bushing, adjusting nut, described support steel bushing is a band steel steel bushing, and be supported on workbench, adjusting nut is distributed on supporting steel and puts and be connected with supporting steel external threading, conflicts on the bearing block I of boring bar one end and on the bearing block IV of boring bar tail end in the bottom of adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510797231.4A CN105328237A (en) | 2015-11-18 | 2015-11-18 | Cylindrical hole boring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510797231.4A CN105328237A (en) | 2015-11-18 | 2015-11-18 | Cylindrical hole boring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105328237A true CN105328237A (en) | 2016-02-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510797231.4A Pending CN105328237A (en) | 2015-11-18 | 2015-11-18 | Cylindrical hole boring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105328237A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598505A (en) * | 2016-03-31 | 2016-05-25 | 重庆工商职业学院 | Deep-hole boring single-shaft electric mechanical arm |
| CN105642928A (en) * | 2016-03-31 | 2016-06-08 | 重庆工商职业学院 | Boring mechanical arm boring tool structure |
| CN106944633A (en) * | 2017-04-28 | 2017-07-14 | 盐城工业职业技术学院 | Servo feed formula tailstock |
| CN107214588A (en) * | 2017-08-02 | 2017-09-29 | 临汾鹏泰伟业有限公司 | A kind of casting finishing machine screw rod push structure |
| CN107269823A (en) * | 2017-08-02 | 2017-10-20 | 临汾鹏泰伟业有限公司 | A kind of casting finishing machine change-speed gearing structure |
| CN107775021A (en) * | 2017-11-02 | 2018-03-09 | 齐齐哈尔齐机工业产品有限公司 | A kind of propeller inner hole processes boring bar device |
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| JPS62188610A (en) * | 1986-02-10 | 1987-08-18 | Akebono Brake Ind Co Ltd | Bore cutting work machine |
| CN2152623Y (en) * | 1993-04-17 | 1994-01-12 | 大连市声光机电实业总公司 | Deep taper hole boring machine |
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| CN103406566A (en) * | 2013-09-06 | 2013-11-27 | 舟山利远机械有限公司 | Multifunctional ultra-large type marine boring machine |
| CN104128639A (en) * | 2013-05-02 | 2014-11-05 | 中钢集团衡阳重机有限公司 | Device for assisting boring machine to process long conical through hole |
| CN104551092A (en) * | 2013-10-24 | 2015-04-29 | 宜昌江峡船用机械有限责任公司 | Boring device adopting common boring machine to machine large taper holes |
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| JPS62188610A (en) * | 1986-02-10 | 1987-08-18 | Akebono Brake Ind Co Ltd | Bore cutting work machine |
| CN2152623Y (en) * | 1993-04-17 | 1994-01-12 | 大连市声光机电实业总公司 | Deep taper hole boring machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598505A (en) * | 2016-03-31 | 2016-05-25 | 重庆工商职业学院 | Deep-hole boring single-shaft electric mechanical arm |
| CN105642928A (en) * | 2016-03-31 | 2016-06-08 | 重庆工商职业学院 | Boring mechanical arm boring tool structure |
| CN106944633A (en) * | 2017-04-28 | 2017-07-14 | 盐城工业职业技术学院 | Servo feed formula tailstock |
| CN107214588A (en) * | 2017-08-02 | 2017-09-29 | 临汾鹏泰伟业有限公司 | A kind of casting finishing machine screw rod push structure |
| CN107269823A (en) * | 2017-08-02 | 2017-10-20 | 临汾鹏泰伟业有限公司 | A kind of casting finishing machine change-speed gearing structure |
| CN107775021A (en) * | 2017-11-02 | 2018-03-09 | 齐齐哈尔齐机工业产品有限公司 | A kind of propeller inner hole processes boring bar device |
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Application publication date: 20160217 |