CN203650186U - Constant-force grinding polishing tool system - Google Patents
Constant-force grinding polishing tool system Download PDFInfo
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- CN203650186U CN203650186U CN201320883843.1U CN201320883843U CN203650186U CN 203650186 U CN203650186 U CN 203650186U CN 201320883843 U CN201320883843 U CN 201320883843U CN 203650186 U CN203650186 U CN 203650186U
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Abstract
The utility model relates to a constant-force grinding polishing tool system which is a grinding polishing tool. The constant-force grinding polishing tool system comprises a power device, a wheel-changing grinding tool, a vibration damping device, a guider, a force compensation and detection device, a counterweight device for grinding with constant force, wherein the grinding tool head ensures that the wheel-changing grinding tool moves along vertical direction through the guider. Vertical floating forms normal polishing force of a blade through the total weight resultant force of an auxiliary low-friction cylinder and a tool system, and an S-type sensor measures the normal force of a tool head, compares the normal value with a set value, and feeds back the final value to a computer. An electric appliance proportion valve is adjusted to control low-friction auxiliary cylinder to compensate force, and the power device isolates the vibration source of a motor over the tool system through the vibration damping device. The high-precision force control is realized through the feedback of the S-type sensor. The constant-force grinding polishing tool system is novel in structure, and realizes the purposes of constant force polishing of blades with different curvature surfaces, ensuring surface consistency, reducing residual stress and improving polishing efficiency.
Description
Technical field
The utility model relates to a kind of constant force griding tool system.
Background technology
Blade is widely used in the axial wheel machines such as steam turbine, turbine and aero-engine, and its surface should reach certain roughness and surface precision requirement, before application, needs blade to carry out grinding-polishing processing.At present, conventional grinding tool head system structural principle: realize the constant force control of normal grinding force by acting on mathematical relationship decoupling zero between tangential force, normal force, abrasive band tensile force, contact wheel cornerite and the cylinder piston-rod displacement on contact wheel.The method major defect has: 1, decoupling zero mode structure link is many.The method that traditional grinding tool adopts is power decoupling zero form, promotes Grinding wheel with cylinder and produces grinding force, in order to ensure that blade surface crudy need to keep method grinding force F
nconstant, if a certain moment Grinding wheel displacement floating amount △ X forward, the wrap angle sigma of Grinding wheel can change, and now needs to carry out power decoupling zero and determines cylinder release power F
asize, know F according to " design of one dimension force man-controlled mobile robot belt grinding machine "
adetermine and need to obtain the size of △ X or α, this just needs angular displacement sensor or displacement transducer to record the size of unknown quantity △ X or α.So not only make frame for movement become complicated, also bring difficulty to control.2, Mathematical Modeling complexity.In order to make blade obtain constant cutting force, need control the power output of cylinder.This decoupling zero that just must carry out power is to obtain cylinder power output.Power decoupling zero is a complicated mathematical procedure, need set up complicated Mathematical Modeling.First, constant according to abrasive band length, set up the mathematical relationship between Grinding wheel displacement floating amount △ X and Grinding wheel wrap angle sigma; Then, calculate abrasive band tight side tension F
t, slack list tensile force f
t', they are parameters relevant to α; Finally, set up F according to equilibrium equation
n, F
a, F
t, F
t', relational expression between α, finally obtain F through converting
n, F
a, relation between △ X.Wherein, F
nfor the grinding force of setting, F
aobtained by power sensor, △ X is obtained by displacement transducer.3, sensor, response speed are had relatively high expectations.The problems such as some all can cause grinding and polishing weak effect above, and polishing efficiency is low.
Summary of the invention
The utility model provides a kind of constant force griding polishing tool system, the complicated in mechanical structure, Mathematical Modeling complexity, the grinding and polishing weak effect that exist to solve current grinding-polishing instrument, the problem that polishing efficiency is low.
The technical solution adopted in the utility model is:
Comprise power set, change wheel grinding tool, vibration absorber, guider one and guider two, force compensating and checkout gear, counter weight device, power set are connected with vibration absorber by screw, also be connected with the power output shaft that changes wheel grinding tool by plum spline coupling, change wheel grinding tool by screw respectively with vibration absorber, guider one and guider two, force compensating is fixedly connected with checkout gear, counter weight device is connected by screw and gripper shoe, by screw with change wheel grinding tool be connected, gripper shoe is fixedly connected with guide rail slide block, force compensating is connected with gripper shoe by connector with checkout gear.
Power set described in the utility model are installed bent plate by the main motor of grinding and motor and are formed, and by screw fastening together.
Structure of changing wheel grinding tool described in the utility model is that driving wheel is connected on power output shaft by expansion sleeve, power output shaft is connected realization location axially and radially by outer separator, bearing hold-down ring, accurate locking nut between inner spacing collar between bearing gland, bearing, bearing and bearing with upper flange seat, upper flange seat is connected by screw and tool palette, idle pulley is connected with idler shaft by bearing, back-up ring, idler shaft is connected by screw and tool palette, regulating wheel is connected with tension wheel shaft by back-up ring, bearing, tension wheel shaft is connected on tensioning cylinder by regulating wheel cylinder connecting plate, and this tensioning cylinder is connected on tool palette by screw, changing wheel grinding tool also comprises and changes wheel mechanism, change wheel mechanism and mainly comprise knife rest, four different Grinding wheels of radius, power output shaft, lower flange seat, change turbin generator, motor is fixed by screws on lower flange, motor shaft is connected with power output shaft by key, power output shaft is through bearing gland, bearing, outer separator between inner spacing collar and bearing between bearing, bearing hold-down ring, accurate locking nut is connected with lower flange and realizes location axially and radially, lower flange is fixed by screws on tool palette, knife rest is fixed on power output shaft by accurate locking nut, Grinding wheel passes through wheel shaft, bearing, back-up ring, nut is fixed on wheel carrier.
Vibration absorber described in the utility model is installed bent plate by damper and damper and is formed, and the two by screw fastening together.
Guider one described in the utility model is by lead, linear bearing and upper connection bent plate composition, linear bearing by screw with on be connected bent plate and be connected.
Feedback described in the utility model and checkout gear support bent plate by detecting element, low friction pair cylinder, cylinder sensor connector, S type bearing sensor, lower connection bent plate composition, wherein, low friction pair cylinder and detecting element support bent plate by together with screw fastening, S type bearing sensor with screw with under be connected bent plate and tighten together, cylinder sensor connector is threaded with S type bearing sensor.
The structure of counter weight device described in the utility model is, steel wire rope one end is connected with Connection Block, the other end is connected with counterweight through pulley, pulley is connected with pulley yoke by pulley spindle, bearing, back-up ring, pulley bearings spacer, nut, and pulley yoke is connected by screw and assembly pulley supporting seat.
Guider two described in the utility model is by lead, linear bearing composition, linear bearing by screw with under be connected bent plate and be connected, lead is connected by screw and detecting element support bent plate.
The utility model has the advantages that: 1, simplify conventional decoupling mode configuration, compared with traditional grinding tool system, the grinding tool that the utility model adopts relies on the self gravitation G that changes wheel grinding tool, the thrust F of counterweight M and low friction pair cylinder
asynthetic normal grinding force F
n, i.e. F
n=G-M-F
a, wherein F
acan obtain by power sensor, in order to keep F
nconstant, only need control cylinder thrust, reduced force decoupling zero greatly, does not need to add displacement transducer and angular displacement sensor, greatly simplifies the structure, and has brought convenience to subsequent control yet.2, Mathematical Modeling is simple, owing to having avoided the process of power decoupling zero, to low friction pair cylinder thrust F
athe Mathematical Modeling of setting up while control is very simple, i.e. F
a=G-M-F
n, not only reduce control difficulty, improved the response speed of system simultaneously.3, introduced damper mechanism, being used in conjunction with of spring damper and plum spline coupling, has reduced the vibration of motor greatly on the impact of remaining part, has reduced to shake because of motor the mismachining tolerance of bringing.4, add and change wheel mechanism, because blade to be processed is free form surface, the curvature of different parts is different.Change the Grinding wheel of wheel construction by four different radiis, adopt the Grinding wheel of different radii for the position of blade different curvature, can improve like this grinding quality, improve grinding efficiency.By the thrust of controlling low friction pair cylinder, the normal direction grinding force of contact wheel is controlled in the error range of permission in sum, keep constant pressure, thereby further improve complex-curved as the machining accuracy of steam blade, ensure the profile quality of blade, structurally can realize brute force by the self-locking of low friction pair cylinder switches and can realize the blade surface accuracy of form and position and the dual guarantee of surface quality with constant force, therefore this tool system is skillfully constructed, simple in structure, multi-functional switching, easily implement, low cost of manufacture, good product consistency, the advantage such as applied widely.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is train layout drawing of the present utility model;
Fig. 4 is that the utility model power and power are exported, vibration absorber schematic diagram;
Fig. 5 is the utility model feedback and checkout gear schematic diagram;
Fig. 6 is the utility model counter weight device schematic diagram;
Fig. 7 A is tensioning portion structural representation of the present utility model;
Fig. 7 B is the B-B cutaway view of Fig. 7 A;
Fig. 8 is the wheel mechanism diagram that changes of the present utility model.
Detailed description of the invention
Comprise power set 1, change wheel grinding tool 2, vibration absorber 3, guider 1 and guider 27, force compensating and checkout gear 5, counter weight device 6, power set 1 are connected with vibration absorber 3 by screw, also be connected with the power output shaft 209 that changes wheel grinding tool 2 by plum spline coupling 8, change wheel grinding tool 2 by screw respectively with vibration absorber 3, guider 1 and guider 27, force compensating is fixedly connected with checkout gear 5, counter weight device 6 is connected by screw and gripper shoe 9, by screw with change wheel grinding tool 2 be connected, gripper shoe 9 is fixedly connected with guide rail slide block 11, force compensating is connected with gripper shoe by connector 10 with checkout gear 5.
Described power set are installed bent plate 102 by the main motor 101 of grinding with motor and are formed, and by screw fastening together.Grinding motor 101 drives driving wheel 212 to rotate and drives abrasive band 238 to move by frictional force, and abrasive band 238 is through idle pulley 203, regulating wheel 221, finally drive Grinding wheel 233 grinding and polishing blades.
Described structure of changing wheel grinding tool 2 is that driving wheel 212 is connected on power output shaft 209 by expansion sleeve 210, power output shaft 209 is connected realization location axially and radially by outer separator 214, bearing hold-down ring 211, accurate locking nut 208 between inner spacing collar 213 between bearing gland 215, bearing 207, bearing and bearing with upper flange seat 206, upper flange seat 206 is connected by screw and tool palette 201, idle pulley 203 is connected with idler shaft 202 by bearing 204, back-up ring 205, idler shaft 202 is connected by screw and tool palette 201, regulating wheel 221 is connected with tension wheel shaft 218 by back-up ring 220, bearing 219, tension wheel shaft 218 is connected on tensioning cylinder 216 by regulating wheel cylinder connecting plate 217, and this tensioning cylinder is connected on tool palette 201 by screw, changing wheel grinding tool 2 also comprises and changes wheel mechanism, change wheel mechanism and mainly comprise knife rest 232, four different Grinding wheels of radius, power output shaft 231, lower flange seat 224, change turbin generator 222, motor 222 is fixed by screws on lower flange 224, motor shaft is connected with power output shaft 231 by key, power output shaft 231 is through bearing gland 223, bearing 227, outer separator 226 between inner spacing collar 225 and bearing between bearing, bearing hold-down ring 228, accurate locking nut 229 is connected with lower flange 224 and realizes location axially and radially, lower flange 224 is fixed by screws on tool palette 201, knife rest 232 is fixed on power output shaft 231 by accurate locking nut 230, Grinding wheel 233 is by wheel shaft 236, bearing 234, back-up ring 237, nut 235 is fixed on wheel carrier.
Tensioning cylinder drives regulating wheel to move in the horizontal direction and realizes the tensioning to abrasive band; Change wheel mechanism have train that the Grinding wheel of 4 different different radiis forms by power output shaft with change turbin generator and be connected, changing wheel mechanism is the grinding in order to adapt to blade different curvature position.
Described vibration absorber is installed bent plate 302 by damper 301 and damper and is formed, and the two by screw fastening together.In the time that motor is normally worked, this mechanism can effectively reduce the impact of motor oscillating on grinding tool, improves the Surface Machining precision of blade.
Described guider 1 is by lead 401, and linear bearing 402 and upper connection bent plate 403 form, linear bearing 402 by screw with on be connected bent plate 403 and be connected.
Described feedback and checkout gear support bent plate 501 by detecting element, low friction pair cylinder 502, cylinder sensor connector 503, S type bearing sensor 504, lower connection bent plate 505 form, wherein, low friction pair cylinder 502 and detecting element support bent plate 501 by together with screw fastening, S type bearing sensor 504 use screws with under be connected bent plate 505 and tighten together, cylinder sensor connector 503 is threaded with S type bearing sensor 504.Grinding normal force is by the detection of S type sensor, by computer program with set force rate, obtain difference, finally resolve electrical equipment proportioning valve aperture control low friction pair cylinder and regulate the size of grinding force.In the time that gripper shoe 9 is passed through guide rail slide block 11 relative machine body 12 horizontal movement, compensation remains unchanged with the relative position that detects feedback device 5 and gripper shoe 9.
The structure of described counter weight device 6 is, steel wire rope 608 one end are connected with Connection Block 609, the other end is connected with counterweight 610 through pulley 603, pulley 603 is connected with pulley yoke 602 by pulley spindle 604, bearing 605, back-up ring 606, pulley bearings spacer 607, nut, and pulley yoke is connected by screw and assembly pulley supporting seat 601.Steel wire rope one end is connected on tool palette by Connection Block, is connected with counterweight counterweight through leading block group, and the power needing according to different cutting lays, select different counterweights, realize the object of constant force griding by making a concerted effort.
Described guider 27 is by lead 701, and linear bearing 702 forms, linear bearing 702 by screw with under be connected bent plate 505 and be connected, lead 701 supports bent plate 501 by screw and detecting element and is connected.
Operation principle of the present utility model is: gripper shoe 9 is by relative machine body 12 horizontal movements of guide rail slide block 11, in process, motor outputting power, the rotation of drive driving wheel, driving wheel relies on the rotation of frictional force drives abrasive band, abrasive band, through idle pulley, regulating wheel, is finally with the Grinding wheel of moving on flywheel knife frame to rotate to reach the object of grinding; In grinding process, change the thrust synthetic normal grinding force jointly of the wheel self gravitation of grinding tool and the low friction pair cylinder of feedback and checkout gear; Guider can ensure that instrument vertically moves; Being used in conjunction with of vibration absorber and plum spline coupling can effectively reduce the vibrations of motor to its grinding tool impact, improves machining accuracy; The use of counterweight not only can balance be changed the gravity of wheel grinding tool, and can improve the response speed detecting with feedback device.
The utility model working method is: set under corresponding curvature and expect that filing is to power value F
n, this power is by instrument self gravitation G, counter weight device gravity M, cylinder thrust F
asynthetic, i.e. F
n=G-M-F
a.Grinding motor 101 power drive abrasive band 238 to move by pass to driving wheel 212 through power output shaft 209, and abrasive band rotates through idle pulley 203, regulating wheel 221, drive Grinding wheel 233, carries out material removal.During grinding, S type gravity sensor 504 records cylinder thrust F
a', and feeding back to computer, computer is tried to achieve normal grinding force F
n'=G-M-F
a', and with desired value F
nrelatively, obtain to obtain difference △ F
n=F
n-F
n', program is according to △ F
nvalue obtain electrical equipment proportioning valve aperture, feed back to low friction pair cylinder 502, compensation normal grinding force difference △ F
n.Along with the variation of blade different curvature, changing turbin generator 222 drives knife rest 232 to rotate to an angle by power output shaft 230, obtain the contact wheel that needs corresponding curvature, realize the constant force griding of complex leaf, when knife rest forwards corresponding position to, the auto-lock function of motor can pin motor shaft, and knife rest 232 will maintain static.Because normal grinding force is little a lot of compared with instrument self gravitation, adding of counterweight 6 not only can balance exercise parts, make cylinder only need to release very little power simultaneously and just can meet the demands, and have improved the response speed of system.Guiding mechanism can ensure the linearity that grinding tool vertically moves.
Claims (8)
1. a constant force griding polishing tool system, it is characterized in that: comprise power set, change wheel grinding tool, vibration absorber, guider one and guider two, force compensating and checkout gear, counter weight device, power set are connected with vibration absorber by screw, also be connected with the power output shaft that changes wheel grinding tool by plum spline coupling, change wheel grinding tool by screw respectively with vibration absorber, guider one and guider two, force compensating is fixedly connected with checkout gear, counter weight device is connected by screw and gripper shoe, by screw with change wheel grinding tool be connected, gripper shoe is fixedly connected with guide rail slide block, force compensating is connected with gripper shoe by connector with checkout gear.
2. constant force griding polishing tool system according to claim 1, is characterized in that: described power set are installed bent plate by the main motor of grinding and motor and formed, and by screw fastening together.
3. constant force griding polishing tool system according to claim 1, is characterized in that: described in change wheel grinding tool structure be that driving wheel is connected on power output shaft by expansion sleeve, power output shaft is connected realization location axially and radially by outer separator, bearing hold-down ring, accurate locking nut between inner spacing collar between bearing gland, bearing, bearing and bearing with upper flange seat, upper flange seat is connected by screw and tool palette, idle pulley is connected with idler shaft by bearing, back-up ring, idler shaft is connected by screw and tool palette, regulating wheel is connected with tension wheel shaft by back-up ring, bearing, tension wheel shaft is connected on tensioning cylinder by regulating wheel cylinder connecting plate, and this tensioning cylinder is connected on tool palette by screw, changing wheel grinding tool also comprises and changes wheel mechanism, change wheel mechanism and mainly comprise knife rest, four different Grinding wheels of radius, power output shaft, lower flange seat, change turbin generator, motor is fixed by screws on lower flange, motor shaft is connected with power output shaft by key, power output shaft is through bearing gland, bearing, outer separator between inner spacing collar and bearing between bearing, bearing hold-down ring, accurate locking nut is connected with lower flange and realizes location axially and radially, lower flange is fixed by screws on tool palette, knife rest is fixed on power output shaft by accurate locking nut, Grinding wheel passes through wheel shaft, bearing, back-up ring, nut is fixed on wheel carrier.
4. constant force griding polishing tool system according to claim 1, is characterized in that: described vibration absorber is installed bent plate by damper and damper and formed, and the two by screw fastening together.
5. constant force griding polishing tool system according to claim 1, is characterized in that: described guider one is by lead, linear bearing and upper connection bent plate composition, linear bearing by screw with on be connected bent plate and be connected.
6. constant force griding polishing tool system according to claim 1, it is characterized in that: described feedback and checkout gear support bent plate by detecting element, low friction pair cylinder, cylinder sensor connector, S type bearing sensor, lower connection bent plate composition, wherein, together with low friction pair cylinder leans on screw fastening with detecting element support bent plate, S type bearing sensor with screw with under be connected bent plate and tighten together, cylinder sensor connector is threaded with S type bearing sensor.
7. constant force griding polishing tool system according to claim 1, it is characterized in that: the structure of described counter weight device is, steel wire rope one end is connected with Connection Block, the other end is connected with counterweight through pulley, pulley is connected with pulley yoke by pulley spindle, bearing, back-up ring, pulley bearings spacer, nut, and pulley yoke is connected by screw and assembly pulley supporting seat.
8. constant force griding polishing tool system according to claim 1, it is characterized in that: described guider two is by lead, linear bearing composition, linear bearing by screw with under be connected bent plate and be connected, lead is connected by screw and detecting element support bent plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883843.1U CN203650186U (en) | 2013-12-26 | 2013-12-26 | Constant-force grinding polishing tool system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883843.1U CN203650186U (en) | 2013-12-26 | 2013-12-26 | Constant-force grinding polishing tool system |
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| Publication Number | Publication Date |
|---|---|
| CN203650186U true CN203650186U (en) | 2014-06-18 |
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|---|---|---|---|
| CN201320883843.1U Expired - Fee Related CN203650186U (en) | 2013-12-26 | 2013-12-26 | Constant-force grinding polishing tool system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786082A (en) * | 2013-12-26 | 2014-05-14 | 吉林大学 | Constant-force grinding and polishing tool system |
| CN104858782A (en) * | 2015-04-03 | 2015-08-26 | 华南理工大学 | Constant pressure automatic grinding device and method based on fuzzy adaptive force control |
| CN106767326A (en) * | 2016-11-30 | 2017-05-31 | 无锡凯涵科技有限公司 | The circularity cubing of tensioning wheel connecting plate |
| CN107584414A (en) * | 2017-09-07 | 2018-01-16 | 潘汉祥 | A kind of polishing machine autocompensation installation |
| CN109571243A (en) * | 2017-09-29 | 2019-04-05 | 山立工业股份有限公司 | It can be with the material pressing device of the transmission belt actuation of sander |
| CN109623657A (en) * | 2019-02-20 | 2019-04-16 | 上海爱仕达机器人有限公司 | A kind of control system of big polishing machine |
| CN109759956A (en) * | 2019-03-19 | 2019-05-17 | 黄石华旦机械制造有限公司 | A kind of high-precision burnishing machine |
| CN112605808A (en) * | 2020-12-11 | 2021-04-06 | 上海爱仕达机器人有限公司 | Double-station abrasive belt machine |
| CN114633211A (en) * | 2022-02-28 | 2022-06-17 | 蚌埠学院 | Grinding wheel for glass edge grinding and rapid glass edge grinding machine |
-
2013
- 2013-12-26 CN CN201320883843.1U patent/CN203650186U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786082A (en) * | 2013-12-26 | 2014-05-14 | 吉林大学 | Constant-force grinding and polishing tool system |
| CN103786082B (en) * | 2013-12-26 | 2016-02-10 | 吉林大学 | Constant force griding polishing tool system |
| CN104858782A (en) * | 2015-04-03 | 2015-08-26 | 华南理工大学 | Constant pressure automatic grinding device and method based on fuzzy adaptive force control |
| CN106767326A (en) * | 2016-11-30 | 2017-05-31 | 无锡凯涵科技有限公司 | The circularity cubing of tensioning wheel connecting plate |
| CN107584414A (en) * | 2017-09-07 | 2018-01-16 | 潘汉祥 | A kind of polishing machine autocompensation installation |
| CN109571243A (en) * | 2017-09-29 | 2019-04-05 | 山立工业股份有限公司 | It can be with the material pressing device of the transmission belt actuation of sander |
| CN109623657A (en) * | 2019-02-20 | 2019-04-16 | 上海爱仕达机器人有限公司 | A kind of control system of big polishing machine |
| CN109623657B (en) * | 2019-02-20 | 2023-09-08 | 上海爱仕达机器人有限公司 | Control system of big burnishing machine |
| CN109759956A (en) * | 2019-03-19 | 2019-05-17 | 黄石华旦机械制造有限公司 | A kind of high-precision burnishing machine |
| CN112605808A (en) * | 2020-12-11 | 2021-04-06 | 上海爱仕达机器人有限公司 | Double-station abrasive belt machine |
| CN114633211A (en) * | 2022-02-28 | 2022-06-17 | 蚌埠学院 | Grinding wheel for glass edge grinding and rapid glass edge grinding machine |
| CN114633211B (en) * | 2022-02-28 | 2023-04-28 | 蚌埠学院 | Grinding wheel for glass edging and quick glass edging machine |
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Granted publication date: 20140618 Termination date: 20151226 |
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