CN204868526U - Hydraulic drive's automatic grinding of robot axle - Google Patents
Hydraulic drive's automatic grinding of robot axle Download PDFInfo
- Publication number
- CN204868526U CN204868526U CN201520629244.6U CN201520629244U CN204868526U CN 204868526 U CN204868526 U CN 204868526U CN 201520629244 U CN201520629244 U CN 201520629244U CN 204868526 U CN204868526 U CN 204868526U
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- Prior art keywords
- main shaft
- shell
- bearing
- axle
- hydraulically powered
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- Withdrawn - After Issue
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Abstract
The utility model provides a hydraulic drive's automatic grinding of robot axle, include: hydraulic means is connected to main shaft, input, and the grinding wheel unit is connected to the output, and hydraulic means passes through the rotation of resilient coupling connection main shaft drive grinding wheel unit and realizes grinding work, the shell, outside connection machine people cover is established on the main shaft, all is provided with a plurality of bearings between inside both ends of shell and the main shaft, on being close to one side of main shaft input, be provided with two back -to -back mounted's bearing between main shaft and the shell, on being close to one side of main shaft output, be provided with two sets of bearings between main shaft and the shell, every group bearing is at least including the bearing of two tandem positions, back -to -back mounted between adjacent two sets of bearings, and it is spaced apart through the spacer between two sets of bearings, front end housing subassembly and rear end cap subassembly, the cover is established on the main shaft and is installed respectively on the both ends of shell. The utility model has the advantages of power is big, simple structure, light, the dependable performance of quality, be applicable to the robot.
Description
Technical field
The utility model relates to grinding axle design field, particularly relates to a kind of hydraulically powered robot automatic grinding axle.
Background technology
Current manual polishing generally adopts pneumatic tool, there is cutting force little, the problems such as working (machining) efficiency is low, work under bad environment.Automation grinding efficiency can reach more than 6 times of manual polishing, good in economic efficiency, is in the early stage of development at home.Higher grinding efficiency just needs more powerful milling tools, pneumatic tool and can not meeting the demands.Robot milling tools is subject to the restriction of robot load capacity, and require milling tools compact conformation, power-weight ratio is large.The electro spindle of more than power 15kW, weight is more than 70 kilograms, expensive.Therefore develop a lightweight, high-power robot milling tools is very necessary.
Polishing main shaft of the prior art mainly comprises following Four types:
1, polishing main shaft adopts electro spindle, its compact conformation, and rotating speed is high; The electro spindle of 3-10kW, when the burr of polishing less, can meet the demands well; But there is following shortcoming in this kind of polishing main shaft: 1) electro spindle is more accurate, and manufacturing technique requirent is high, and fertile producer is few; 2) electro spindle needs special cooling, lubricating system, adds system cost; 3) the electric mainshaft bearing life-span falls short of; 4) electro spindle rotating speed is high but moment of torsion is little, and cause cutting force little, grinding efficiency is low; 5) electro spindle is safeguarded complicated, is generally safeguarded by manufacturer.
2, polishing main shaft adopts mechanical power head to add the form of motor, no matter be adopt threephase asynchronous machine or adopt permagnetic synchronous motor, when power is 10kW, weight has all exceeded 50kg, add the weight of mechanical power head itself, robot load has exceeded 100kg, constrains the power of milling tools.
3, Authorization Notice No. is that the utility model of CN201483314U is accused you and disclosed a kind of grinding machine hydraulic main shaft special for track slab; There is following shortcoming in this kind of polishing main shaft: 1) this technical scheme is for lathe, but not the main shaft that robot uses; 2) sealing when what this technical scheme adopted is contact, makes the speed of mainshaft be restricted; 3) the pressured plate of emery wheel is pressed in emery wheel and puts; 4) what adopt is open type hydraulic system, and system effectiveness is low.
4, Authorization Notice No. is that the utility model of CN2214863Y is accused you and disclosed a kind of grinding head of billet coping machine; There is following shortcoming in this kind of polishing main shaft: 1) this technical scheme is for lathe, but not the main shaft that robot uses; 2) bearing arrangement is complicated, manufactures difficulty; 3) contact seal, the speed of mainshaft is low; 4) hydraulic motor and main shaft adopt key to be connected, and belong to and are rigidly connected; 5) grinding wheel stand and main shaft adopt cylinder axle head, and key connects; 6) emery wheel adopts laminated form to install; 7) bearing adopts oil lubrication, needs grease pump and lubricating pipe.
Utility model content
In order to address these problems, the utility model provides a kind of hydraulically powered robot automatic grinding axle, comprising:
Main shaft, input connecting fluid pressure device, output connects grinding wheel unit, and described hydraulic means drives described grinding wheel unit to rotate by described main shaft and realizes grinding work;
Shell, is set on described main shaft, is provided with bearing between described enclosure two ends and described main shaft; On the side of main shaft input end, between described main shaft and described shell, be provided with the mainshaft rear bearing of two back-to-back installations; On the side of described main shaft output, between described main shaft and described shell, be provided with two groups of bearings, often organize bearing and include a main spindle front bearing or include the main spindle front bearing of two arranged in series, back-to-back installation between two adjacent groups bearing; The outside of described shell connects robot;
Drive end bearing bracket assembly and rear end cap assembly, to be set on described main shaft and to be respectively installed on the two ends of shell, and described drive end bearing bracket assembly and rear end cap assembly and shell form enclosure space.
Preferably, on the side of described main shaft output, spaced apart by spacer between described two groups of bearing encloses.
Preferably, the bearing arranged between described shell and described main shaft all adopts angular contact ball bearing.
Preferably, drive end bearing bracket assembly includes drive end bearing bracket, front shaft sleeve and front locking nut, and described front shaft sleeve, front locking nut order is set on described main shaft, and described front shaft sleeve is pressed on described main spindle front bearing by described front locking nut; Described drive end bearing bracket lid is located on described front shaft sleeve and front locking nut, and is connected with described shell, and described drive end bearing bracket and described front shaft sleeve form labyrinth sealing.
Preferably, rear end cap assembly includes rear end cap, rear axle housing and rear locking nut, and described rear axle housing, rear locking nut order is set on described main shaft, and described rear axle housing is pressed on described mainshaft rear bearing by described rear locking nut; Described rear end cap lid is located on described rear axle housing and rear locking nut, and is connected with described shell, and described rear end cap and described rear axle housing form labyrinth sealing.
Preferably, described grinding wheel unit comprises grinding wheel stand and is arranged on the emery wheel on grinding wheel stand, the output of described main shaft is tapered, the central through hole of described grinding wheel stand is bellmouth, described grinding wheel stand bellmouth is set on the output of described main shaft, and main shaft output is provided with the clamp nut for compressing described grinding wheel stand.
Preferably, described hydraulic means comprises hydraulic motor and fluid power system, and described hydraulic motor connects the input of described main shaft, and hydraulic motor work described in described hydraulic drive system drives, described hydraulic motor drives described main axis.
Preferably, described hydraulic motor adopts high speed axial plunger type motor.
Preferably, described hydraulic motor is installed on the housing by a hydraulic motor mount pad, and the output shaft of described hydraulic motor directly connects the input of described main shaft by yielding coupling.
Preferably, described fluid power system adopts Closed Hydraulic Driving system.
Preferably, the outside of described shell is provided with robot connector, described robot connector comprises elastic cuffs and ring flange, and described elastic cuffs is for clamping described shell, and described ring flange connects robot.
The utility model, owing to adopting above technical scheme, makes it compared with prior art, has following advantage and good effect:
1) the hydraulically powered robot automatic grinding axle that provides of the utility model, fore bearing group adopts the mode of the rear back-to-back installation of angular contact ball bearing series connection, rear bearing adopts the mode of back-to-back floating installation, ensure that main shaft can relative to main shaft shell flexible rotating on the one hand, make main shaft obtain higher rigidity on the other hand, thus great cutting force can be carried;
2) the hydraulically powered robot automatic grinding axle that provides of the utility model, drive end bearing bracket assembly and rear end cap assembly and shell junction adopt labyrinth sealing, and this sealing means sealing property is higher, and the rotating speed of main shaft can not be restricted;
3) the hydraulically powered robot automatic grinding axle that provides of the utility model, adopt hydraulic means as the drive unit of main shaft, significantly reduce the weight of grinding axle on the one hand, thus improve effective service load of robot, very high power can be obtained on the other hand, improve the operating rate of polishing system; And hydraulic means hydraulic oil is as cooling medium, only needs radiator, does not need to adopt special cooler, thus greatly reduce size and the quality of grinding axle;
4) the hydraulically powered robot automatic grinding axle that provides of the utility model, hydraulic motor adopts yielding coupling to connect main shaft, can coaxiality error between effective compensation hydraulic motor output shaft and main shaft power shaft, reduces the difficulty of making and installation.
Accompanying drawing explanation
By reference to the accompanying drawings, by detailed description hereafter, above-mentioned and other feature and advantage of the present utility model more clearly can be understood, wherein:
The structural representation of the hydraulically powered robot automatic grinding axle that Fig. 1 provides for the utility model;
Fig. 2 is the assembling schematic diagram of main shaft and shell in the utility model.
Symbol description:
1-emery wheel 2-grinding wheel stand 3-main shaft
4-robot connector 5-hydraulic motor mount pad 6-yielding coupling
7-hydraulic motor 11-shell 12-drive end bearing bracket
13-rear end cap 14-rear axle housing 17-bearing inner race spacer
18-bearing outer ring spacer 19-front shaft sleeve 20-packing ring
Locking nut before 21-clamp nut 101-main spindle front bearing 102-
Locking nut 107-screw after 103-mainshaft rear bearing 104-.
Detailed description of the invention
See the accompanying drawing that the utility model embodiment is shown, hereafter in more detail the utility model will be described.But the utility model can realize in many different forms, and should not be construed as by the restriction in the embodiment of this proposition.On the contrary, it is abundant and complete open in order to reach for proposing these embodiments, and makes those skilled in the art understand scope of the present utility model completely.In these accompanying drawings, for clarity sake, may be exaggerated size and the relative size in layer and region.
With reference to Fig. 1-2, the deficiency that the utility model exists for current robot milling tools, provide that a kind of power is large, structure simply, the hydraulically powered robot automatic grinding axle of dependable performance.This grinding axle includes the shell 11 of main shaft 3 and supports main shaft 3, and the input of main shaft 1 connects driving mechanism, and output connects grinding wheel unit, and driving mechanism drives grinding wheel component rotation to carry out grinding by main shaft.
As shown in Figure 2, shell 11 is set on main shaft 3, and shell 11 is stretched out at the two ends of main shaft 3, is provided with some bearings inside shell 11 and between main shaft 3, and main shaft 3 is rotated relative to shell 11.
In the present embodiment, on the side of main shaft 3 output, between main shaft 3 and shell 11, be provided with two groups of bearings, often organize bearing and include a main spindle front bearing 101 or two main spindle front bearings 101; Preferred bearing of often organizing includes two main spindle front bearings 101, and two main spindle front bearings 101 are in series; Install in back-to-back form between two groups of bearings, and it is spaced apart to add spacer between two groups of bearings, is separated respectively between the inner ring of two groups of concrete bearings and outer ring by bearing inner race spacer 17 and bearing outer ring spacer 18; Wherein, main spindle front bearing 101 preferably adopts angular contact ball bearing, and angular contact ball bearing is special main shaft bearing, and limit speed is high, the high rotating speed needed when being applicable to grinding; Certainly also can select the bearing of other types, not be restricted herein.
In the present embodiment, on the side of main shaft 3 input, be provided with two mainshaft rear bearings 103 between main shaft 3 and shell 11, adjacent two mainshaft rear bearings 103 adopt back-to-back floating mounting means; Wherein, mainshaft rear bearing 103 preferably adopts angular contact ball bearing, certainly also can select the bearing of other types, not be restricted herein.
In the utility model, fore bearing group adopts the mode of the rear back-to-back installation of angular contact ball bearing series connection, rear bearing adopts the mode of back-to-back floating installation, ensure that main shaft can relative to main shaft shell flexible rotating on the one hand, make main shaft 3 obtain higher rigidity on the other hand, thus great cutting force can be carried.
In the present embodiment, the front and back ends of shell 11 is also separately installed with drive end bearing bracket assembly and rear end cap assembly, drive end bearing bracket assembly is arranged on the side of main shaft 3 output, and rear end cap assembly is arranged on the side of main shaft 3 input.Concrete, drive end bearing bracket assembly includes drive end bearing bracket 12, front shaft sleeve 19 and front locking nut 102, front shaft sleeve 19, front locking nut 102 order is set on main shaft 3, being pressed on main spindle front bearing 101 by front shaft sleeve 19, realizing being fixed of main spindle front bearing 101 by tightening front locking nut 102; Drive end bearing bracket 12 lid is located on front shaft sleeve 19 and front locking nut 102, and realizes being connected by modes such as screws 107 with the front end of shell 11; In the present embodiment, the outer ring of front shaft sleeve 19 is provided with the bulge-structure matched with drive end bearing bracket 12 inner ring upper shoulder hole, with reference to shown in Fig. 2, after drive end bearing bracket 12 is connected with shell 11, labyrinth sealing is formed between drive end bearing bracket 12 and front shaft sleeve 19, this sealing means sealing property is higher, and the rotating speed of main shaft 3 can not be restricted.
Same, rear end cap assembly includes rear end cap 13, rear axle housing 14 and rear locking nut 104, rear axle housing 14, rear locking nut 104 order is set on main shaft 3, being pressed on mainshaft rear bearing 103 by rear axle housing 14, realizing being fixed of mainshaft rear bearing 103 by tightening rear locking nut 104; Rear end cap 13 lid is located on rear axle housing 14 and rear locking nut 104, and realizes being connected by modes such as screws 107 with the front end of shell 11; In the present embodiment, the outer ring of rear axle housing 14 is provided with the bulge-structure matched with rear end cap 13 inner ring upper shoulder hole, with reference to shown in Fig. 2, after drive end bearing bracket 12 is connected with shell 11, labyrinth sealing is formed between drive end bearing bracket 12 and rear axle housing 14, this sealing means sealing property is higher, and the rotating speed of main shaft 3 can not be restricted.
In the present embodiment, the arranged outside of shell 11 has robot connector 4 for connecting robot device, thus the grinding axle that the utility model is provided is applicable to robot device.Concrete, robot connector 4 comprises elastic cuffs and ring flange, and elastic cuffs is used for clamping shell 11, and ring flange for connecting robot, thus achieves shell 11 and drives main shaft 3 to be connected to effect on robot device.
The input of main shaft 3 is provided with driving mechanism, and driving mechanism preferably adopts hydraulic means in the present embodiment; Hydraulic means comprises hydraulic motor 7 and fluid power system, and hydraulic motor 7 is installed on shell 11 by a hydraulic motor mount pad 5, and the output shaft of hydraulic motor 7 connects the input of main shaft 3 by a yielding coupling 6; Hydraulic motor 7 connects fluid power system, hydraulic drive system drives hydraulic motor 7 works, hydraulic motor 7 drives main shaft 3 to rotate, and fluid power system preferably adopts Closed Hydraulic Driving system, and Closed Hydraulic Driving system has that hydraulic pressure is large, hydraulic system volume is little, efficiency advantages of higher.Wherein, hydraulic motor 7 can be axial piston motor, sliding-vane motor etc., is not restricted herein; Connected mode between hydraulic motor 7 and main shaft 3 does not also limit, and the utility model preferably adopts yielding coupling 6 directly to connect, the conversion equipments such as middle gearless, belt; The connected mode of yielding coupling 6 effectively can compensate the coaxial error between hydraulic motor output shaft and main shaft, reduces the difficulty of making and installation.
The utility model adopts hydraulic means as the drive unit of main shaft, significantly reduces the weight of grinding axle on the one hand, thus improves effective service load of robot, can obtain very high power on the other hand, improve the operating rate of polishing system; And hydraulic means hydraulic oil is as cooling medium, only needs radiator, does not need to adopt special cooler, thus greatly reduce size and the quality of grinding axle.
The output of main shaft 3 is provided with grinding wheel unit, the emery wheel 1 that grinding wheel unit comprises grinding wheel stand 2 and is arranged on grinding wheel stand 2, the output of main shaft 3 is tapered, the central through hole of grinding wheel stand 2 is the bellmouth matched with main shaft 3 output, grinding wheel stand 2 is set on the output of main shaft 2 by bellmouth, and main shaft 3 output end is provided with clamp nut 21 for compressing grinding wheel stand 2, and be also provided with packing ring 20 between clamp nut 21 and grinding wheel stand 2; Emery wheel 1 is directly fixed on grinding wheel stand 2 by modes such as screws again, and main shaft 3 rotates thus drives emery wheel 1 to rotate, and carries out grinding work.The mounting means of above-mentioned emery wheel 1, structure is simple, and installs rapid and convenient.
In sum, the utility model provides a kind of hydraulically powered robot automatic grinding axle, comprising: main shaft, input connecting fluid pressure device, and output connects grinding wheel unit, and hydraulic means drives grinding wheel unit to rotate by main shaft and realizes grinding work; Shell, outside connects robot and is set on main shaft, is provided with some bearings between enclosure two ends and main shaft; On the side of main shaft input end, between main shaft and shell, be provided with the bearing of two back-to-back installations; On the side of main shaft output, between main shaft and shell, be provided with two groups of bearings, often organize the bearing that bearing at least includes two arranged in series, back-to-back installation between two adjacent groups bearing, and spaced apart by spacer between two groups of bearings; Drive end bearing bracket assembly and rear end cap assembly, to be set on main shaft and to be respectively installed on the two ends of shell.The utility model has the advantages such as power is large, structure is simple, quality is light, dependable performance, is applicable to robot.
Those skilled in the art should be understood that the utility model can realize with other concrete forms many and not depart from spirit or scope of the present utility model.Although described embodiment of the present utility model, the utility model should be understood and should not be restricted to these embodiments, within the utility model spirit and scope that those skilled in the art can define as appended claims, make change and amendment.
Claims (11)
1. a hydraulically powered robot automatic grinding axle, is characterized in that, comprising:
Main shaft, input connecting fluid pressure device, output connects grinding wheel unit, and described hydraulic means drives described grinding wheel unit to rotate by described main shaft and realizes grinding work;
Shell, is set on described main shaft, is provided with bearing between described enclosure two ends and described main shaft; On the side of main shaft input end, between described main shaft and described shell, be provided with the mainshaft rear bearing of two back-to-back installations; On the side of described main shaft output, between described main shaft and described shell, be provided with two groups of bearings, often organize bearing and include a main spindle front bearing or include the main spindle front bearing of two arranged in series, back-to-back installation between two adjacent groups bearing; The outside of described shell connects robot;
Drive end bearing bracket assembly and rear end cap assembly, to be set on described main shaft and to be respectively installed on the two ends of shell, and described drive end bearing bracket assembly and rear end cap assembly and shell form enclosure space.
2. hydraulically powered robot according to claim 1 automatic grinding axle, is characterized in that, on the side of described main shaft output, spaced apart by spacer between described two groups of bearing encloses.
3. hydraulically powered robot according to claim 1 automatic grinding axle, it is characterized in that, the bearing arranged between described shell and described main shaft all adopts angular contact ball bearing.
4. hydraulically powered robot according to claim 1 automatic grinding axle, it is characterized in that, drive end bearing bracket assembly includes drive end bearing bracket, front shaft sleeve and front locking nut, described front shaft sleeve, front locking nut order is set on described main shaft, and described front shaft sleeve is pressed on described main spindle front bearing by described front locking nut; Described drive end bearing bracket lid is located on described front shaft sleeve and front locking nut, and is connected with described shell, and described drive end bearing bracket and described front shaft sleeve form labyrinth sealing.
5. hydraulically powered robot according to claim 1 automatic grinding axle, it is characterized in that, rear end cap assembly includes rear end cap, rear axle housing and rear locking nut, described rear axle housing, rear locking nut order is set on described main shaft, and described rear axle housing is pressed on described mainshaft rear bearing by described rear locking nut; Described rear end cap lid is located on described rear axle housing and rear locking nut, and is connected with described shell, and described rear end cap and described rear axle housing form labyrinth sealing.
6. hydraulically powered robot according to claim 1 automatic grinding axle, it is characterized in that, described grinding wheel unit comprises grinding wheel stand and is arranged on the emery wheel on grinding wheel stand, the output of described main shaft is tapered, the central through hole of described grinding wheel stand is bellmouth, described grinding wheel stand bellmouth is set on the output of described main shaft, and main shaft output is provided with the clamp nut for compressing described grinding wheel stand.
7. hydraulically powered robot according to claim 1 automatic grinding axle, it is characterized in that, described hydraulic means comprises hydraulic motor and fluid power system, described hydraulic motor connects the input of described main shaft, hydraulic motor work described in described hydraulic drive system drives, described hydraulic motor drives described main axis.
8. hydraulically powered robot according to claim 7 automatic grinding axle, is characterized in that, described hydraulic motor adopts high speed axial plunger type motor.
9. hydraulically powered robot according to claim 7 automatic grinding axle, it is characterized in that, described hydraulic motor is installed on the housing by a hydraulic motor mount pad, and the output shaft of described hydraulic motor directly connects the input of described main shaft by yielding coupling.
10. hydraulically powered robot according to claim 7 automatic grinding axle, is characterized in that, described fluid power system adopts Closed Hydraulic Driving system.
11. hydraulically powered robot according to claim 1 automatic grinding axles, it is characterized in that, the outside of described shell is provided with robot connector, described robot connector comprises elastic cuffs and ring flange, described elastic cuffs is for clamping described shell, and described ring flange connects robot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629244.6U CN204868526U (en) | 2015-08-20 | 2015-08-20 | Hydraulic drive's automatic grinding of robot axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629244.6U CN204868526U (en) | 2015-08-20 | 2015-08-20 | Hydraulic drive's automatic grinding of robot axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204868526U true CN204868526U (en) | 2015-12-16 |
Family
ID=54812947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520629244.6U Withdrawn - After Issue CN204868526U (en) | 2015-08-20 | 2015-08-20 | Hydraulic drive's automatic grinding of robot axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204868526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523540A (en) * | 2016-12-21 | 2017-03-22 | 上海萨菱机电设备有限公司 | Main shaft rotation coupling |
-
2015
- 2015-08-20 CN CN201520629244.6U patent/CN204868526U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523540A (en) * | 2016-12-21 | 2017-03-22 | 上海萨菱机电设备有限公司 | Main shaft rotation coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20161123 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |