CN206276943U - A kind of adjustable cone than boring equipment - Google Patents

A kind of adjustable cone than boring equipment Download PDF

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Publication number
CN206276943U
CN206276943U CN201621338038.0U CN201621338038U CN206276943U CN 206276943 U CN206276943 U CN 206276943U CN 201621338038 U CN201621338038 U CN 201621338038U CN 206276943 U CN206276943 U CN 206276943U
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CN
China
Prior art keywords
boring
bar
fixedly connected
knife
knife rest
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Active
Application number
CN201621338038.0U
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Chinese (zh)
Inventor
唐城
胡亮
张树元
罗远国
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CSSC Huangpu Wenchong Shipbuilding Co Ltd
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CSSC Huangpu Wenchong Shipbuilding Co Ltd
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Priority to CN201621338038.0U priority Critical patent/CN206276943U/en
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Abstract

The utility model provide a kind of adjustable cone than boring equipment, it includes:Boring bar;Whirligig, it includes electric rotating machine, the rotating disk, knife bar and the sliding block that are driven by electric rotating machine;Knife bar is fixedly connected with rotating disk, knife bar be provided with it is some for cone governor than adjustment hole;Sliding block is fixedly connected by adjustment hole with knife bar, and sliding block is fixedly connected with boring bar;Feed arrangement, it includes feeding motor, by feeding motor-driven leading screw, knife rest and boring cutter;Knife rest is enclosed within leading screw, and is connected through a screw thread with leading screw;Boring cutter is fixed on knife rest by fastening screw.The utility model can effectively solve the problems, such as that existing bore hole knife rest cone ratio cannot be adjusted, and machining accuracy is high;Clamping adjustment is simple, convenient disassembly, it is easy to operate;Automaticity is improve, digital monitoring is capable of achieving, cone hole machine flow is optimized, labour intensity, improve production efficiency can be greatly reduced;Simple structure, low cost of manufacture.

Description

A kind of adjustable cone than boring equipment
Technical field
The utility model be related to a kind of adjustable cone than boring equipment.
Background technology
Cone hole machine is typically processed using boring row, and existing boring device causes boring bar intensity because boring bar draw ratio is excessive Significantly weaken with rigidity.Existing boring bar is long 6 meters, diameter 110mm, three bearings and a motive power before, during and after having. Due to having installed four external force strong points additional on so elongated boring bar, therefore whichsoever the external force strong point is corrected in clamping When produce external force difference, boring bar all can flexural deformation, work in this state, linearity hardly results in guarantee, and boring bar one End needs dress to hang boring technological equipment and knife rest, further increases the flexural deformation of boring bar, so that the taper hole cone ratio for processing There is error with drawing gross data and machined surface roughness is undesirable, it is necessary to the pincers worker later stage takes a significant amount of time brush, effect Rate is low.
The present invention devises a kind of adjustable for the hardware technology deficiency that existing bore hole knife rest cone ratio cannot be adjusted and existed The boring equipment of ratio is bored, not only can effectively solve the problems, such as that existing bore hole knife rest cone ratio cannot be adjusted, and this boring equipment Clamping adjustment is simple, it is easy to operate, with low cost, and operating personnel's labour intensity can be greatly reduced, and improve production efficiency is reduced Production cost.
In the prior art, Chinese patent 200610047307.2 discloses a kind of conic hole boring machine with adjustable taper, including Motor, cone hole machine cutter head, straight boring bar and worm screw.Motor shaft is coupled by belt with worm shaft.Worm gear with worm engaging is filled On straight boring bar.Straight boring bar is by two boring spindle supports.Cone hole machine cutter head and slant rail dovetail groove joint, have on slant rail Leading screw groove, is equiped with leading screw in leading screw groove, leading screw is connected by screw with cone hole machine cutter head.Slant rail is fixed on slant rail peace It is installed on hoop, the clip is installed on straight boring bar, slant rail tilt adjustable.Boring spindle support include tapered sleeve, housing, Frame plate.In housing, tapered sleeve rear entirety on straight boring bar loads in the positioning hole on Frame plate tapered sleeve, and by multiple Pole is connected with workpiece to be machined.
Chinese patent 201220052050.0 discloses a kind of Portable conicity Boring machine, including driving shaft, and with institute The drive shaft housing of driving shaft mating connection is stated, gearbox, plane knife rest is turned to and is walked knife system, knife system is walked using pattern method Including bevel gear box, hinge means, the first fixed seat, the first rate taper device, the first knife rest, leading screw, the second knife rest, the second taper Device, the second fixed seat and base;The bevel gear box by hinge means sequentially with the first rate taper device, the first knife rest, silk Thick stick, the second knife rest and the second rate taper device are connected;First and second rate taper device is respectively by height-adjustable First and second fixed seats are fixed on the driving shaft so that it is described walk knife system rotated with the rotation of driving shaft.
Chinese patent 201520209506.3 discloses a kind of functional universal Boring machine, including support, horizontal sliding panel, vertical Sliding panel, roll adjustment screw mandrel, motor, belt swelling device, V belt, reduction box, spindle flange, feeding power transmission shaft, feeding Gear, feeding separating mechanism, feeding stop mechanism, boring bar flange, taper hole knife rest, taper are led, cylindrical hole knife rest and face tool post, It is described feeding power transmission shaft be arranged on reduction box inside, the taper hole knife rest, taper guide rail, cylindrical hole knife rest and face tool post according to From left to right it is sequentially connected with being arranged on boring bar flange.
Chinese patent 200820022208.3 discloses a kind of Horizontal numerical control boring wheeling machine, and the utility model includes bed Body, clamping workpiece device, cutter, boring bar, main spindle box, chip cleaner, cooling system, hydraulic system, electrical system and lubricating system, The cutter is boring rolling compound tool.
The defect of above-mentioned technical proposal is to bore ratio to adjust, and complex operation is relatively costly and production efficiency is not high.
Therefore, a kind of cone how is provided than adjustable, simple to operate, bore hole that is with low cost and can significantly improving production efficiency Equipment becomes the problem that industry needs to solve.
The content of the invention
In view of the shortcomings of the prior art, the purpose of this utility model be to provide a kind of adjustable cone than boring equipment.
To achieve these goals, the utility model provide a kind of adjustable cone than boring equipment, boring equipment includes:
Boring bar;
Whirligig, whirligig includes electric rotating machine, the rotating disk, knife bar and the sliding block that are driven by electric rotating machine;Knife bar with Rotating disk is fixedly connected, knife bar be provided with it is some for cone governor than adjustment hole;Sliding block is fixedly connected by adjustment hole with knife bar, Sliding block is fixedly connected after being freezed with boring bar;
Feed arrangement, feed arrangement is including feeding motor, by feeding motor-driven leading screw, knife rest and boring cutter;Knife rest It is enclosed within leading screw, and is connected through a screw thread with leading screw;Boring cutter is fixed on knife rest by fastening screw.
In the utility model, boring bar is machined with the square horizontal concrete chute moved back and forth for knife rest in its radial direction, in water The tapped hole of two sidetrackings of smooth groove, for fixation clip, the boring bar horizontal concrete chute back side processes a flat position, for eliminating boring Influence from Eccentric when bar rotates.Boring bar one end is machined with the conical bore of Mohs 5#, and the other end is with a sliding block by being welded to connect.
The utility model can not only realize cone than adjustable, and adjustment is simple, it is easy to operate, with low cost, Neng Gou great Width reduction operating personnel's labour intensity, improve production efficiency reduces production cost.
According to another specific embodiment of the utility model, rotating disk includes facing head and cutterhead;Electric rotating machine drives flat rotation Disk, facing head is fixedly connected with cutterhead, and cutterhead is fixedly connected with knife bar.
According to another specific embodiment of the utility model, feed arrangement further includes transmission mechanism;Transmission mechanism position Between feeding motor and leading screw.
According to another specific embodiment of the utility model, transmission mechanism includes flexible transmission mechanism and rigid of transmission machine Structure;Rigid of transmission mechanism includes input shaft, gear train and output shaft, and input shaft is connected with feeding motor.
According to another specific embodiment of the utility model, flexible transmission mechanism includes at least two transfer units;Transmission Unit includes the first bearing pin and universal joint, and the first bearing pin is connected with universal joint;Output shaft is connected with universal joint, and leading screw and first is sold Axle is fixedly connected.
According to another specific embodiment of the utility model, flexible transmission mechanism further includes length adjusting unit, long Degree adjustment unit includes the second bearing pin and adjustable short tube;Second bearing pin is connected by alignment pin with adjustable short tube.
According to another specific embodiment of the utility model, length adjusting unit is located between two adjacent transfer units, Second bearing pin is connected with universal joint, and adjustable short tube is fixedly connected with the first bearing pin.
According to another specific embodiment of the utility model, boring equipment further includes support meanss, support meanss bag Include supporting plate and movable thimble;Supporting plate is provided with centre bore, during movable thimble is connected in the taper hole of boring bar rear end and withstands Heart hole.
According to another specific embodiment of the utility model, boring equipment further includes positioning sleeve, and positioning sleeve is located at boring Rod rear end, leading screw is connected with positioning sleeve.
According to another specific embodiment of the utility model, boring bar is provided with the horizontal concrete chute for knife rest movement.
Compared with prior art, the utility model possesses following beneficial effect:
1st, boring equipment of the present utility model not only efficiently solves the problems, such as that existing bore hole knife rest cone ratio cannot be adjusted, and And machining accuracy is high, the crudy of stabilization is obtained in that;
2nd, boring equipment clamping of the present utility model adjustment is simple, convenient disassembly, it is easy to operate;
3rd, boring equipment of the present utility model greatly improves the working ability of current digital display horizontal boring machine, improves taper hole The automaticity of process, operating process can realize digital monitoring, optimize cone hole machine flow, can be greatly reduced Operating personnel's labour intensity, improve production efficiency;
4th, boring equipment simple structure of the present utility model, material therefor is current material, and low cost of manufacture can save big Cost.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the part-structure schematic diagram of the boring equipment of embodiment 1;
Fig. 2 is the overall structure diagram of the boring equipment of embodiment 1;
Fig. 3 is the partial sectional view along line A-A in Fig. 2;
Fig. 4 is the partial sectional view along line B-B in Fig. 2.
Specific embodiment
Embodiment 1
Present embodiments provide a kind of adjustable cone than boring equipment, it includes:Boring bar 9, whirligig 5, feed arrangement 17th, support meanss 36, positioning sleeve 4.
Wherein, the horizontal concrete chute (not shown) for the movement of knife rest 45 is machined with boring bar 9, being machined with knife rest 45 can The square groove (not shown) of boring cutter 28 is filled, boring cutter 28 is fixed on knife rest 45 by the screw hole and fastening screw on knife rest 45 On.
Whirligig 5 includes electric rotating machine (not shown), the rotating disk 7, knife bar and sliding block that are driven by electric rotating machine;Rotating disk 7 include facing head 8 and cutterhead 14, and electric rotating machine drives facing head 8, and facing head 8 is fixedly connected with cutterhead 14, cutterhead 14 and knife bar 13 are fixedly connected;Knife bar 13 be provided with three for cone governor than adjustment hole (not shown);Sliding block 20 by adjustment hole with Knife bar 13 is fixedly connected, and sliding block 20 is fixedly connected with boring bar 9.
Feed arrangement 17 is including feeding motor (not shown), by feeding motor-driven leading screw 11, knife rest 45, boring cutter 28 and transmission mechanism 19;Knife rest 45 is enclosed within leading screw 11, and is connected through a screw thread with leading screw 11;Boring cutter 28 is fixed at knife rest On 45;Transmission mechanism 19 is located between feeding motor and leading screw 11, and it includes flexible transmission mechanism 26 and rigid of transmission mechanism 27; Rigid of transmission mechanism 27 includes input shaft (not shown), gear train 32 and output shaft (i.e. power transmission shaft I 24), input shaft and feeding Motor is connected.Flexible transmission mechanism 26 includes two transfer unit (not shown) and length adjusting unit 35;Each transmission is single Unit includes first bearing pin and a universal joint, and the two is connected;Output shaft is connected with universal joint II 34, and leading screw 11 and first is sold Axle I 29 is fixedly connected;Length adjusting unit 36 includes the second bearing pin 31 and adjustable short tube 23;Second bearing pin 31 by alignment pin with Adjustable short tube 23 is connected;Length adjusting unit is located between two adjacent transfer units, the second bearing pin 31 and the phase of universal joint I 30 Even, adjustable short tube 23 is fixedly connected with the first pin shaft II 33.
Support meanss 36 include supporting plate 2 and movable thimble 3;Supporting plate is provided with centre bore (not shown), movable top Pin 3 is connected in the taper hole of the rear end of boring bar 9 and withstands centre bore.
Positioning sleeve 4 is located at the rear end of boring bar 9, and leading screw 11 is connected with positioning sleeve 4.
As Figure 1-4, facing head 8 is connected through a screw thread cutterhead 14, and cutterhead 14 and knife bar 13 are closely connected by boring position Integrally.Three adjustment holes are drilled with knife bar 13,1 is used for being positioned with sliding block 20, and another two is used for adjusting.The square groove of knife bar 13 There is one narrower locating slot (not shown) of processing in (not shown), a positioning copper strips 18, anti-on-slip are placed with locating slot Block adjustment bolt 22 weighs square groove wounded after tightening.The side of boring bar 9 is machined with the horizontal concrete chute for the movement of knife rest 45, while in level The tapped hole (not shown) of two sidetrackings of chute, for fixation clip 43;The another side of boring bar 9 processes a flat position, uses To eliminate Influence from Eccentric when boring bar rotates.The other end of boring bar 9 is machined with internal taper hole (not shown), movable thimble 3 and boring bar 9 Internal taper hole cone position coordinate, movable thimble 3 withstands a supporting plate 2 for being drilled with centre bore, and supporting plate 2 is fixed on by spot welding to be treated On the workpiece 1 of processing, supporting plate 2 needs to adjust the center of movable thimble 3 to consistent with the center of knife bar 13 before drilling.Gear wheel 37 are located at the rear of facing head 8, and gear wheel 37 is engaged with travelling gear IV 44, and direction of rotation is in opposite direction with gear wheel 37, transmission Gear IV 44 is arranged on one end of power transmission shaft II 41 by flat key;The other end of power transmission shaft II 41 installs travelling gear by flat key III 39, power transmission shaft II 41 is supported by the copper sheathing 40 installed in the two ends of bearing block III 38 and ball bearing (not shown), transmission Axle II 41 coordinates with the gap of copper sheathing 40;Travelling gear III 39 is engaged with travelling gear II 42, the bearing pin of travelling gear II 42 and the 3rd (not shown) is slidably matched, the 3rd bearing pin hole interference fit corresponding with bearing block III 38;Travelling gear I 25 and driving cog II 42 engagements are taken turns, travelling gear I 25 is arranged on power transmission shaft I 24 by flat key.
Power transmission shaft I 24 is connected by with alignment pin with one end of universal joint II 34.The other end of universal joint II 34 is by positioning Pin is connected with one end of the first pin shaft II 33, and the other end of the first pin shaft II 33 coordinates with a splaying of adjustable short tube 23, after Spot welding is connected.The other end of adjustable short tube 23 is coordinated with the gap of the second bearing pin 31 for being provided with longitudinal chute by alignment pin and connected Connect, adjustable short tube 23 can be used to compensate the device axial string momentum in process.Second bearing pin 31 by alignment pin with it is universal I 30 one end connection is saved, the other end of universal joint I 30 and the first bearing pin I 29 are by positioning pin connection.One end of screw mandrel 11 and the The endoporus of one bearing pin I 29 is slidably matched, and is fixed by spot welding, prevents screw mandrel 11 from being released with the first bearing pin I 29.First bearing pin I 29 are slidably matched with the endoporus of bearing block II 12, one end of support screw 11.The other end of screw mandrel 11 is by bearing block I 6 Single direction thrust ball bearing I 15, single direction thrust ball bearing II 16 are supported, and are fixed with positioning sleeve 4 and tight fixed bolt.Bearing block I 6, axle Bearing II 12 is fixed on the two ends of boring bar 9 with fastening bolt respectively.Screw mandrel 11 coordinates with the screw thread of transmission nut 10, transmission nut 10 Interference is arranged on one end of knife rest 45;Two square grooves that can fill boring cutter 28 and screw hole are machined with knife rest 45 (in figure Do not show), the side of knife rest 45 and bottom surface are slidably matched with the side and bottom surface of the horizontal concrete chute of boring bar 9 respectively, and boring cutter 28 passes through screw Hole and fastening screw are fixed on knife rest 45.
Bearing block III 38 is by two pieces section into the workpiece of " L " type and " workpiece welding a post-processing of [" type. One end boring of bearing block III 38 has three symmetrical holes, and these three holes correspond to install power transmission shaft I 24, the 3rd bearing pin and transmission respectively The copper sheathing 40 of axle II 41, wherein power transmission shaft I 24 coordinate with corresponding bearing saddle bore gap, and the other end is machined with a ball bearing Bore, installs the ball bearing of power transmission shaft II 41, and bearing block III 38 has interior base to be processed into a circular arc camber, with facing head 8 Arc radius are identical, and lower section is drilled with a screw hole, and bearing block III 38 is fixed on the relevant position of facing head with fastening bolt.
The operating method of the boring equipment of the present embodiment is as follows:
1st, rotated by the button control facing head 8 on control panel, facing head 8 transfers power to the knife being attached thereto Disk 14, cutterhead 14 and knife bar 13 are closely linked into an integrated entity by boring position, and knife bar 13 is further through the square groove itself processed and boring bar 9 one Hold the sliding block 20 of welding to be slidably connected, distance is moved radially with sliding block 20 than being converted into knife bar 13 according to processed product cone Afterwards, knife bar 13 and boring bar 9 are attached by sliding block bolt 21 and sliding block adjustment bolt 22 again.Boring bar 9 and movable thimble 3 Connection, the thimble of movable thimble 3 withstands a supporting plate 2 for being drilled with centre bore, and supporting plate 2 is fixed on to be processed by spot welding On workpiece.The power of facing head 8 gives the boring bar 9 with sliding block 20 by the transmission of knife bar 13, and boring bar 9 follows facing head 8 to rotate together, Realize the circular motion of boring equipment.
2nd, rotated by the gear wheel 37 after the button control facing head 8 on control panel, the biography engaged with gear wheel 37 Moving gear IV 44 is also rotated with, and direction of rotation is in opposite direction with gear wheel 37.Power is passed through power transmission shaft by travelling gear IV 44 II 41 pass to travelling gear III 39, and travelling gear III 39 is engaged with travelling gear II 42, and band nutating gear II 42 rotates.Pass Moving gear I 25 is engaged with travelling gear II 42, and travelling gear I 25 is rotated with, and direction now is in opposite direction with gear wheel 37. Travelling gear I 25 drives power transmission shaft I 24 to be rotated by flat key.
3rd, power transmission shaft I 24 by rotary motion by universal joint I 30, universal joint II 34, adjustable short tube 23, the first bearing pin I 29, Second bearing pin 31, the first pin shaft II 33 are transferred to screw mandrel 11, and screw mandrel 11 coordinates with the screw thread of transmission nut 10, and transmission nut 10 passes through Before and after the rotating of screw mandrel 11 can drive knife rest 45 and cutter 28 on transmission nut 10 along the horizontal concrete chute processed on boring bar 9 Motion, the i.e. rotary motion of screw mandrel 11 is changed into the front and rear linear reciprocating motion of knife rest 45 and cutter 28 along horizontal concrete chute, realizes The feed feeding process of conical bore boring processing.
4th, to process the different products for boring ratios, only need to be different according to taper, calculated, adjust knife bar 13 and sliding block The relative position of 20 radial directions, then carries out mark mark, carries out drilling to knife bar 13 and sliding block 20 again.Cleaning burr Afterwards, tighten the screw.After the completion of assembling, then check that whether the cone of adjustment than meets drawing on boring table with standard water leveling ruler It is required that, if there is error, should be modified, untill meeting the requirements.
Although the utility model is disclosed above with preferred embodiment, the model of the utility model implementation is not limited to Enclose.Any one of ordinary skill in the art, not departing from invention scope of the present utility model, when a little improvement can be made, I.e. every equal improvement done according to the utility model, should be scope of the present utility model and is covered.

Claims (10)

1. a kind of adjustable cone than boring equipment, it is characterised in that the boring equipment includes:
Boring bar;
Whirligig, rotating disk, knife bar and sliding block that the whirligig includes electric rotating machine, driven by the electric rotating machine;Institute Knife bar is stated to be fixedly connected with the rotating disk, the knife bar be provided with it is some for cone governor than adjustment hole;The sliding block passes through The adjustment hole is fixedly connected with the knife bar, and the sliding block is fixedly connected with the boring bar;
Feed arrangement, the feed arrangement includes feeding motor, feeds motor-driven leading screw, knife rest and boring cutter by described; The knife rest is enclosed within the leading screw, and is connected through a screw thread with the leading screw;The boring cutter is fixed at by fastening screw On the knife rest.
2. boring equipment as claimed in claim 1, it is characterised in that the rotating disk includes facing head and cutterhead;The rotation Motor drives the facing head, the facing head to be fixedly connected with the cutterhead, and the cutterhead is fixedly connected with the knife bar.
3. boring equipment as claimed in claim 1, it is characterised in that the feed arrangement further includes transmission mechanism;Institute Transmission mechanism is stated to be located between the feeding motor and the leading screw.
4. boring equipment as claimed in claim 3, it is characterised in that the transmission mechanism includes flexible transmission mechanism and rigidity Transmission mechanism;The rigid of transmission mechanism includes input shaft, gear train and output shaft, the input shaft and the feeding motor phase Even.
5. boring equipment as claimed in claim 4, it is characterised in that the flexible transmission mechanism includes that at least two transmission are single Unit;The transfer unit includes the first bearing pin and universal joint, and first bearing pin is connected with the universal joint;The output shaft with The universal joint is connected, and the leading screw is fixedly connected with first bearing pin.
6. boring equipment as claimed in claim 5, it is characterised in that the flexible transmission mechanism further includes length adjustment Unit, the length adjusting unit includes the second bearing pin and adjustable short tube;Second bearing pin is adjustable with described by alignment pin Short tube is connected.
7. boring equipment as claimed in claim 6, it is characterised in that the length adjusting unit is located at two adjacent biographies Pass between unit, second bearing pin is connected with the universal joint, the adjustable short tube is fixedly connected with first bearing pin.
8. boring equipment as claimed in claim 1, it is characterised in that the boring equipment further includes support meanss, institute Stating support meanss includes supporting plate and movable thimble;The supporting plate is provided with centre bore, and the movable thimble is connected to described In the taper hole of boring bar rear end and withstand the centre bore.
9. boring equipment as claimed in claim 1, it is characterised in that the boring equipment further includes positioning sleeve, described Positioning sleeve is located at the boring bar rear end, and the leading screw is connected with the positioning sleeve.
10. boring equipment as claimed in claim 1, it is characterised in that the boring bar is provided with the water for knife rest movement Smooth groove.
CN201621338038.0U 2016-12-07 2016-12-07 A kind of adjustable cone than boring equipment Active CN206276943U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621338038.0U CN206276943U (en) 2016-12-07 2016-12-07 A kind of adjustable cone than boring equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621338038.0U CN206276943U (en) 2016-12-07 2016-12-07 A kind of adjustable cone than boring equipment

Publications (1)

Publication Number Publication Date
CN206276943U true CN206276943U (en) 2017-06-27

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CN201621338038.0U Active CN206276943U (en) 2016-12-07 2016-12-07 A kind of adjustable cone than boring equipment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN114160841A (en) * 2021-11-30 2022-03-11 福建省马尾造船股份有限公司 On-site grinding tool for oversized taper hole and using method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN114160841A (en) * 2021-11-30 2022-03-11 福建省马尾造船股份有限公司 On-site grinding tool for oversized taper hole and using method thereof

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: GUANGZHOU WENCHUAN HEAVY INDUSTRY Co.,Ltd.

Assignor: CSSC HUANGPU WENCHONG SHIPBUILDING Co.,Ltd.

Contract record no.: X2022440000324

Denomination of utility model: A Boring Equipment with Adjustable Taper Ratio

Granted publication date: 20170627

License type: Common License

Record date: 20221216

EE01 Entry into force of recordation of patent licensing contract