CN104741986A - Buoyancy type inner bore processing device and method - Google Patents
Buoyancy type inner bore processing device and method Download PDFInfo
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- CN104741986A CN104741986A CN201310746583.8A CN201310746583A CN104741986A CN 104741986 A CN104741986 A CN 104741986A CN 201310746583 A CN201310746583 A CN 201310746583A CN 104741986 A CN104741986 A CN 104741986A
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- emery wheel
- fixing device
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- inner bore
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Classifications
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- 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
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- 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
- B24B25/00—Grinding machines of universal type
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- 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
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to the technical field of mechanical processing, in particular to a processing device and method. A buoyancy type inner bore processing device includes a rack, wherein a workpiece fixing device and bore grinding devices are arranged on the rack. The buoyancy type inner bore processing device further includes a supporting base which is arranged on the rack through a lateral moving device. The two bore grinding devices are fixed at two ends of the supporting base respectively, and the material grinding ends of the two bore grinding devices are opposite to each other and face two ends of the workpiece fixing device respectively. The workpiece fixing device is rotatably connected with the rack, and the rotating direction of the workpiece fixing device is opposite to that of the material grinding ends disposed on the bore grinding devices. The invention further relates to a buoyancy type inner bore processing method. After adopting the buoyancy type inner bore processing device to conduct inner bore processing on workpieces, the produced workpieces have the advantages of good inner bore coaxiality and concentricity, zero second-order error, high accuracy, etc.
Description
Technical field
The present invention relates to Machining Technology field, particularly relate to a kind of processing unit (plant) and processing method.
Background technology
Add man-hour carrying out coaxial aperture system to deep hole workpiece, owing to being subject to condition restriction, lathe can not complete the processing of two coaxial apertures of coaxial aperture system workpiece simultaneously.
In prior art, after generally completing processing one stomidium, upset, process another hole, twice clamping realizes the processing of coaxial aperture., there are cumulative errors in such mode, after processing, the axiality of two-direction hole is low, and machining accuracy is difficult to ensure.And twice clamping is lost time, production efficiency is low, and hand labor intensity is large, and production cost is high.
Summary of the invention
The object of the invention is to, provide a kind of floatage-type inner bore machining device, to solve the problems of the technologies described above.
Another object of the present invention is to, a kind of processing method of endoporus is provided, to solve the problems of the technologies described above.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of floatage-type inner bore machining device, comprise a frame, described frame is provided with Work fixing device, honing device, it is characterized in that, also comprise a supporting seat, described supporting seat moves left and right device by one and is arranged in described frame, and a described honing device is fixed at the two ends of described supporting seat respectively, the abrasive material end of two described honing devices is oppositely arranged, respectively towards described Work fixing device two ends;
Described Work fixing device is connected with described gantry rotation, and the rotation direction of described Work fixing device is contrary with the rotation direction of abrasive material end on described honing device.
When the present invention uses, be fixed on by workpiece on Work fixing device, two abrasive material ends need the position of grinding out respectively on workpiece.To move left and right device toward when moving left, first the abrasive material end on right side carries out hole machined in right side to workpiece, moves left and right device and continues toward moving left, until the endoporus on the right side of workpiece machines; To move left and right device then toward moving right, the abrasive material end in left side carries out hole machined in left side to workpiece, after the endoporus of both sides all completes, moves left and right device and replys.Workpiece is taken off from Work fixing device.After above-mentioned design, the processing advantage for coaxial inner is especially outstanding, and only move left and right owing to moving left and right device, above-below direction is constant, and during processing both sides endoporus, its axiality, good concentricity, without the error that upset workpiece secondary operations causes.
In addition, when internal hole machined, because the rotation direction of abrasive material end is contrary with the rotation direction of Work fixing device, endoporus working (machining) efficiency is high.While abrasive material end exits workpiece, can also carry out grinding to endoporus inwall, the fineness realizing endoporus inwall is good.
The described device that moves left and right preferably adopts fluid pressure linear slide arrangement, described fluid pressure linear slide arrangement comprises slide rail and chute, fluid film is provided with between described slide rail and described chute, described fluid film produces static pressure thrust, described chute is floated by described fluid film, is doing linear displacement along described slide rail swimmingly without under Frotteurism;
Described slide rail is fixed in described frame, and described chute horizontally slips with described slide rail and is connected, and described supporting seat fixed by described chute.The linear slide arrangement of aforesaid way is owing to there being the support of liquid film, and its load capacity is strong, and stability is high, and have extremely low friction, high rigidity and high damping characteristic, for the location of supporting seat, precision is high, can reach sub-micron grade feeding.Substantially increase the precision of grinding out.
Described Work fixing device comprises main shaft, a bearing, a spindle drum of a hollow, and described main shaft connects described spindle drum by described bearing, and described spindle drum is fixed in described frame;
Workpiece is fixedly connected with described main shaft through described main shaft, and described workpiece rotates together with described main shaft.
Described bearing preferably adopts hydrodynamic journal liquid polymers, and described main shaft does and rotates on bearing.The oil film formed by lubricating oil between the main shaft of traditional hydrodynamic journal liquid polymers and bearing, with bearing load, mutually contactless, realize without remarkable advantages such as friction, long working life, bearing reliability height.The main shaft of existing hydrodynamic journal liquid polymers is generally solid, uses as rotatable parts.And present invention utilizes the rotation of main shaft, main shaft is hollowed out, forms hollow spindle, workpiece is fixed in main shaft, can design the length of main shaft according to the length of workpiece, and workpiece can stretch out in main shaft, also can be fixed in main shaft, preferably similar with main axis length.After adopting hydrodynamic journal liquid polymers, workpiece is in grinding out process, and workpiece and main shaft low run, and grinding tool is running up, and running accuracy is high, and bearing capacity is strong, further ensures the precision of grinding out.
The abrasive material end of described honing device preferably adopts high-quality emery wheel, and described emery wheel preferably adopts skive or cubic boron nitride abrasive wheel, and the rotation direction of emery wheel is contrary with the rotation direction of Work fixing device.Emery wheel has the advantage such as good rigidly, life-span length.When emery wheel High Rotation Speed, coordinate with Work fixing device and rotate, effective cutting workpiece, realize vibration lines little, the advantages such as roughness is little.
Described emery wheel also adopts the fixed form of hydrodynamic journal liquid polymers to be fixed on one end of described supporting seat.
Described Work fixing device is connected with described frame by a movable device, and described movable device also adopts a fluid pressure linear slide arrangement.When the present invention works, emery wheel and the anti-phase rotation of workpiece, under the effect moving left and right device, emery wheel carries out grinding out by pair of workpieces; After grinding out completes, carry out grinding to the end face of workpiece, after grinding completes, mobile move left and right device, emery wheel exits inner hole of workpiece, and near corresponding workpiece end face, mobile movable device, and under emery wheel and the anti-phase rotation of workpiece, emery wheel carries out grinding to workpiece end face.After one side milled, then grinding is carried out to another side end face.After above-mentioned design, the depth of parallelism of workpiece end face is good, and the uniformity of both ends of the surface is good.
Middle part between two described honing devices arranges described Work fixing device, and the distance between two described honing devices is greater than length workpiece needing grinding out direction.
A processing method for endoporus, is characterized in that, comprises the steps:
1) be fixed in frame by the workpiece of endoporus to be processed by Work fixing device, the length direction of endoporus to be processed is the moving direction moving left and right device;
2) move left and right device to move and turn left, drive and move left and right supporting seat on device toward moving left, and then drive the emery wheel on supporting seat toward moving left, the emery wheel on right side carries out grinding out to the right side of workpiece;
After completing right side grinding out, move left and right device and move and turn right, drive emery wheel toward moving right, the emery wheel in left side carries out grinding out to the left side of workpiece;
3) move left and right device to restPose, the medium position fixation workpiece fixture of original state preferably between two emery wheels.
The present invention, before step 3), can also carry out grinding to workpiece end face:
Move left and right device toward moving left, drive emery wheel toward moving left, left side emery wheel exits inner hole of workpiece, rest on outside workpiece left end face, movable device moves forward or backward, left side emery wheel towards workpiece left end face, under emery wheel and the anti-phase rotation of workpiece, grinding left end face, completes left end face grinding;
Moving left and right device continues toward moving left, and drives emery wheel toward moving left, until right side emery wheel rests on outside workpiece its right end face, under emery wheel and the anti-phase rotation of workpiece, and grinding its right end face;
Movable device moves backward or forward, restPoses.
The device that moves left and right of the present invention first toward moving left, also can first pastly can move right, to the restriction of on the left of workpiece or right side without grinding out sequencing.But processing method of the present invention, after first must carrying out grinding to two ends endoporus, then carries out grinding to workpiece end face.Axiality, the concentricity between two endoporus can be ensured like this, ensure without second order error.
The present invention not only can process coaxial inner, also can process inner circle symmetrical on two workpiece simultaneously, now in step 1), one of them workpiece is fixed on the left side of frame by Work fixing device, another workpiece is fixed on the right side of frame by Work fixing device, endoporus on the left of the work pieces process of left side, endoporus on the right side of the work pieces process of right side.Other steps are consistent with aforesaid way.Such design, the endoporus uniformity of two workpiece is good, and working (machining) efficiency improves greatly.
Beneficial effect: owing to adopting technique scheme, adopt inner bore machining device of the present invention, the workpiece made, have that coaxiality of inner hole is good, good concentricity, without remarkable advantages such as second order error, precision height.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of processing unit (plant) of the present invention;
Fig. 2 is the part-structure schematic diagram of Work fixing device of the present invention.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with concrete diagram.
With reference to Fig. 1, a kind of floatage-type inner bore machining device, comprise frame 1, frame 1 is provided with Work fixing device 2, honing device 3, supporting seat 4, supporting seat 4 is arranged in frame 1 by moving left and right device 5, the abrasive material end that a honing device 3, two honing devices 3 are fixed at the two ends of supporting seat 4 is respectively oppositely arranged, respectively towards Work fixing device 2 two ends.Work fixing device 2 and frame 1 are rotationally connected, and the rotation direction of Work fixing device 2 is contrary with the rotation direction of abrasive material end on honing device 3.The middle part of the present invention preferably between two honing devices 3 arranges Work fixing device 2, and the distance between two honing devices 3 is greater than length workpiece 11 needing grinding out direction.
When the present invention uses, be fixed on by workpiece 11 on Work fixing device 2, two abrasive material ends need the position of grinding out respectively on workpiece 11.To move left and right device 5 toward when moving left, first the abrasive material end on right side carries out hole machined in right side to workpiece 11, moves left and right device 5 and continues toward moving left, until the endoporus on the right side of workpiece 11 machines; To move left and right device 5 then toward moving right, the abrasive material end in left side carries out hole machined in left side to workpiece 11, after the endoporus of both sides all completes, moves left and right device 5 and replys.Workpiece 11 is taken off from Work fixing device 2.After above-mentioned design, the processing advantage for coaxial inner is especially outstanding, and only move left and right owing to moving left and right device 5, above-below direction is constant, and during processing both sides endoporus, its axiality, good concentricity, without the error that upset workpiece secondary operations causes.In addition, when internal hole machined, because the rotation direction of abrasive material end is contrary with the rotation direction of Work fixing device 2, endoporus working (machining) efficiency is high.While abrasive material end exits workpiece, can also carry out grinding to endoporus inwall, the fineness realizing endoporus inwall is good.
Move left and right device 5 and preferably adopt fluid pressure linear slide arrangement, fluid pressure linear slide arrangement comprises slide rail and chute, fluid film is provided with between slide rail and chute, fluid film produces static pressure thrust, chute is floated by fluid film, is doing linear displacement along slide rail swimmingly without under Frotteurism.Slide rail is fixed in frame 1, and chute horizontally slips with slide rail and is connected, fixed supporting seat 4 on chute.The linear slide arrangement of aforesaid way is owing to there being the support of liquid film, and its load capacity is strong, and stability is high, and have extremely low friction, high rigidity and high damping characteristic, for the location of supporting seat 4, precision is high, can reach sub-micron grade feeding.Substantially increase the precision of grinding out.
With reference to Fig. 2, Work fixing device 2 comprises main shaft 21, bearing 22, the spindle drum 23 of hollow, and main shaft 21 connects spindle drum 23 by bearing 22, and spindle drum 23 is fixed in frame 1.Workpiece is fixedly connected with main shaft 21 through main shaft 21, and workpiece rotates together with main shaft 21.Bearing 22 preferably adopts hydrodynamic journal liquid polymers, and main shaft 21 does and rotates on bearing.The oil film formed by lubricating oil between the main shaft 21 of traditional hydrodynamic journal liquid polymers and bearing, with bearing load, mutually contactless, realize without remarkable advantages such as friction, long working life, bearing reliability height.The main shaft 21 of existing hydrodynamic journal liquid polymers is generally solid, uses as rotatable parts.And present invention utilizes the rotation of main shaft 21, main shaft 21 is hollowed out, forms hollow spindle, workpiece is fixed in main shaft 21, and can design the length of main shaft 21 according to the length of workpiece, workpiece can stretch out in main shaft 21, also can be fixed in main shaft 21, preferably similar with main shaft length 21 degree.After adopting hydrodynamic journal liquid polymers, workpiece is in grinding out process, and workpiece and main shaft 21 low cruise, grinding tool is running up, and running accuracy is high, and bearing capacity is strong, further ensures the precision of grinding out.
The abrasive material end of honing device 3 preferably adopts emery wheel, and emery wheel preferably adopts diamond emery wheel or cubic boron nitride abrasive wheel, and the rotation direction of emery wheel is contrary with the rotation direction of Work fixing device 2.Emery wheel has the advantage such as good rigidly, life-span length.When emery wheel High Rotation Speed, coordinate with Work fixing device 2 and rotate, effective cutting workpiece, realize vibration lines little, the advantages such as roughness is little.Emery wheel also adopts the fixed form of hydrodynamic journal liquid polymers to be fixed on one end of supporting seat 4.
Work fixing device 2 is connected with frame 1 by movable device, and movable device also adopts fluid pressure linear slide arrangement.The slide rail of fluid pressure linear slide arrangement is fixed in frame, and the chute of fluid pressure linear slide arrangement is fixedly connected with the spindle drum 23 of Work fixing device 2.Certainly, Work fixing device 2 also can be connected with frame 1 by movable device, and movable device adopts fluid pressure linear slide arrangement.Because workpiece is in high-speed rotation, therefore no matter moves or move forward and backward, emery wheel all can realize the grinding process to workpiece end face.When the present invention works, emery wheel and the anti-phase rotation of workpiece, under the effect moving left and right device 5, emery wheel carries out grinding out by pair of workpieces; After grinding out completes, carry out grinding to the end face of workpiece, mobile move left and right device 5, emery wheel exits inner hole of workpiece, and near corresponding workpiece end face, mobile movable device, and under emery wheel and the anti-phase rotation of workpiece, emery wheel carries out grinding to workpiece end face.After one side milled, then grinding is carried out to another side end face.After above-mentioned design, the depth of parallelism of workpiece end face is good, and the uniformity of both ends of the surface is good.
A processing method for endoporus, comprises the steps:
1) fixing: be fixed in frame 1 by the workpiece of endoporus to be processed by Work fixing device 2, the length direction of endoporus to be processed is the moving direction moving left and right device 5.
2) grinding out: move left and right device 5 and move and turn left, drive and move left and right supporting seat 4 on device 5 toward moving left, and then drive the emery wheel on supporting seat 4 toward moving left, the emery wheel on right side carries out grinding out to the right side of workpiece.After completing right side grinding out, move left and right device 5 and move and turn right, drive emery wheel toward moving right, the emery wheel in left side carries out grinding out to the left side of workpiece.
3) cross grinding: move left and right device 5 toward moving left, drive emery wheel toward moving left, left side emery wheel exits inner hole of workpiece, rest on outside workpiece left end face, movable device moves forward or backward, left side emery wheel towards workpiece left end face, under emery wheel and the anti-phase rotation of workpiece, grinding left end face, completes left end face grinding.Moving left and right device 5 continues toward moving left, and drives emery wheel toward moving left, until right side emery wheel rests on outside workpiece its right end face, under emery wheel and the anti-phase rotation of workpiece, and grinding its right end face.
4) move left and right device 5 to restPose, the medium position fixation workpiece fixture 2 of original state preferably between two emery wheels.Movable device moves backward or forward, restPoses.
The device 5 that moves left and right of the present invention first toward moving left, also can first pastly can move right, to the restriction of on the left of workpiece or right side without grinding out sequencing.But processing method of the present invention, after first must carrying out grinding out to two endoporus, then carries out grinding to workpiece end face.Axiality, the concentricity between two endoporus can be ensured like this, ensure without second order error.The present invention not only can process coaxial inner, also can process inner circle symmetrical on two workpiece simultaneously, now in step 1), one of them workpiece is fixed on the left side of frame 1 by Work fixing device 2, another workpiece is fixed on the right side of frame 1 by Work fixing device 2, endoporus on the left of the work pieces process of left side, endoporus on the right side of the work pieces process of right side.Other steps are consistent with aforesaid way.Such design, the endoporus uniformity of two workpiece is good, and working (machining) efficiency improves greatly.
Adopt the workpiece of processing unit (plant) of the present invention and processing method grinding, there is following parameter:
Concentricity≤0.001mm, the depth of parallelism≤0.001mm, with end face squareness≤0.001mm, axiality≤0.001mm.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (9)
1. a floatage-type inner bore machining device, comprise a frame, described frame is provided with Work fixing device, honing device, it is characterized in that, also comprise a supporting seat, described supporting seat moves left and right device by one and is arranged in described frame, and a described honing device is fixed at the two ends of described supporting seat respectively, the abrasive material end of two described honing devices is oppositely arranged, respectively towards described Work fixing device two ends;
Described Work fixing device is connected with described gantry rotation, and the rotation direction of described Work fixing device is contrary with the rotation direction of abrasive material end on described honing device.
2. a kind of floatage-type inner bore machining device according to claim 1, it is characterized in that, the described device that moves left and right adopts fluid pressure linear slide arrangement, described fluid pressure linear slide arrangement comprises slide rail and chute, fluid film is provided with between described slide rail and described chute, described fluid film produces static pressure thrust, described chute is floated by described fluid film, is doing linear displacement swimmingly without under Frotteurism along described slide rail;
Described slide rail is fixed in described frame, and described chute horizontally slips with described slide rail and is connected, and described supporting seat fixed by described chute.
3. a kind of floatage-type inner bore machining device according to claim 1 and 2, it is characterized in that, described Work fixing device comprises main shaft, a bearing, a spindle drum of a hollow, and described main shaft connects described spindle drum by described bearing, and described spindle drum is fixed in described frame;
Workpiece is fixedly connected with described main shaft through described main shaft, and described workpiece rotates together with described main shaft.
4. a kind of floatage-type inner bore machining device according to claim 3, is characterized in that, described bearing adopts hydrodynamic journal liquid polymers, and described main shaft does and rotates on bearing.
5. a kind of floatage-type inner bore machining device according to claim 3, is characterized in that, the abrasive material end of described honing device adopts emery wheel, and the rotation direction of emery wheel is contrary with the rotation direction of Work fixing device; Described emery wheel adopts the fixed form of hydrodynamic journal liquid polymers to be fixed on one end of described supporting seat.
6. a kind of floatage-type inner bore machining device according to claim 5, is characterized in that, described Work fixing device is connected with described frame by a movable device, and described movable device adopts a fluid pressure linear slide arrangement.
7. a kind of floatage-type inner bore machining device according to claim 1, it is characterized in that, middle part between two described honing devices arranges described Work fixing device, and the distance between two described honing devices is greater than length workpiece needing grinding out direction.
8. a processing method for endoporus, adopts the inner bore machining device in 1 to 7 described in any one to carry out interior hole machined to workpiece, it is characterized in that, comprise the steps: hole machined in workpiece
1) be fixed in frame by the workpiece of endoporus to be processed by Work fixing device, the length direction of endoporus to be processed is the moving direction moving left and right device;
2) move left and right device to move and turn left, drive and move left and right supporting seat on device toward moving left, and then drive the emery wheel on supporting seat toward moving left, the emery wheel on right side carries out grinding out to the right side of workpiece;
After completing right side grinding out, move left and right device and move and turn right, drive emery wheel toward moving right, the emery wheel in left side carries out grinding out to the left side of workpiece;
3) move left and right device to restPose, the medium position fixation workpiece fixture of original state preferably between two emery wheels.
9. the processing method of a kind of endoporus according to claim 8, is characterized in that before step 3), also carries out grinding to workpiece end face:
Move left and right device toward moving left, drive emery wheel toward moving left, left side emery wheel exits inner hole of workpiece, rest on outside workpiece left end face, movable device moves forward or backward, left side emery wheel towards workpiece left end face, under emery wheel and the anti-phase rotation of workpiece, grinding left end face, completes left end face grinding;
Moving left and right device continues toward moving left, and drives emery wheel toward moving left, until right side emery wheel rests on outside workpiece its right end face, under emery wheel and the anti-phase rotation of workpiece, and grinding its right end face;
Movable device moves backward or forward, restPoses.
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| CN201310746583.8A CN104741986B (en) | 2013-12-30 | 2013-12-30 | A kind of inner bore machining device and processing method |
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| CN106826487A (en) * | 2017-02-20 | 2017-06-13 | 吴涛 | A kind of machinery part surface processing unit |
| CN107052981A (en) * | 2017-03-09 | 2017-08-18 | 杭州吉利机械有限公司 | Monoblock type spheroidal graphite cast-iron differential casing semiaxis endoporus spreads out mill processing method |
| CN107846118A (en) * | 2017-10-27 | 2018-03-27 | 宁波市江北区伊人宝贸易有限公司 | A kind of more trimming type stator core trimming sanding apparatus |
| CN108527031A (en) * | 2018-07-09 | 2018-09-14 | 佛山迅奥捷自动化科技有限公司 | A kind of end connecting hole automatically grinding mechanism of hardware tool extension bar |
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| CN106826487A (en) * | 2017-02-20 | 2017-06-13 | 吴涛 | A kind of machinery part surface processing unit |
| CN106826487B (en) * | 2017-02-20 | 2019-01-01 | 湖北京峻汽车零部件有限公司 | A kind of machinery part surface processing unit |
| CN107052981A (en) * | 2017-03-09 | 2017-08-18 | 杭州吉利机械有限公司 | Monoblock type spheroidal graphite cast-iron differential casing semiaxis endoporus spreads out mill processing method |
| CN107846118A (en) * | 2017-10-27 | 2018-03-27 | 宁波市江北区伊人宝贸易有限公司 | A kind of more trimming type stator core trimming sanding apparatus |
| CN108527031A (en) * | 2018-07-09 | 2018-09-14 | 佛山迅奥捷自动化科技有限公司 | A kind of end connecting hole automatically grinding mechanism of hardware tool extension bar |
| CN108673314A (en) * | 2018-07-09 | 2018-10-19 | 佛山迅奥捷自动化科技有限公司 | A kind of end connecting hole workpiece polishing mechanism that extension bar position can highly be adjusted |
| CN108857635A (en) * | 2018-07-09 | 2018-11-23 | 佛山迅奥捷自动化科技有限公司 | A kind of multifunctional access lever attachment hole automatic sander structure |
| CN108890417A (en) * | 2018-07-09 | 2018-11-27 | 江西合力泰科技有限公司 | A kind of glass cover plate hole throwing machine |
| CN111958329A (en) * | 2020-07-30 | 2020-11-20 | 浙江丰波机电科技有限公司 | Hub unit grinding process applied to high-precision and easy-to-assemble hub unit |
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| CN104741986B (en) | 2019-03-12 |
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Effective date of registration: 20200922 Address after: Workshop 1, building 1, No. 1215 Puwei Road, Zhuangxing Town, Fengxian District, Shanghai, 201415 Patentee after: SHANGHAI BUJIN PRECISION CERAMIC Co.,Ltd. Address before: 201415 Shanghai city Fengxian District Zhuanghang Town Zhuang Hu Road No. 539 Patentee before: SHANGHAI LITAO PRECISION MACHINERY Co.,Ltd. |
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