CN201098829Y - Free-form surface abrasive belt grinding machine - Google Patents
Free-form surface abrasive belt grinding machine Download PDFInfo
- Publication number
- CN201098829Y CN201098829Y CNU2007201880428U CN200720188042U CN201098829Y CN 201098829 Y CN201098829 Y CN 201098829Y CN U2007201880428 U CNU2007201880428 U CN U2007201880428U CN 200720188042 U CN200720188042 U CN 200720188042U CN 201098829 Y CN201098829 Y CN 201098829Y
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- sliding table
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- grinding machine
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- 238000000227 grinding Methods 0.000 title claims description 25
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000007514 turning Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 4
- 238000003801 milling Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract 1
- 238000005498 polishing Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003967 crop rotation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model relates to a free surface coated abrasive grinder. Two X-axis lead rails are arranged on the upper surface of a lathe bed in a parallel way; a sliding table is supported on the X-axis lead rails; a decelerated motor is arranged in the middle part of the lathe bed, and a gear on an output shaft of the decelerated motor meshes with a rack bar on the bottom surface of the sliding table; a lift platform is arranged aside the lathe bed, two Y-axis lead rails are laid on the upper surface of the lift platform in a parallel way, and a guide seat is supported on the Y-axis lead rails; a sleeve is arranged on the top of the guide seat; a connection shaft passes through the sleeve; the connection shaft is connected with one lateral surface of a locating plate, a sleeve barrel is arranged on the other lateral surface of the locating plate, and a support shaft passes through the sleeve barrel; a driver is arranged on one end of the support shaft; a contact wheel and a pull rod are arranged on the other end of the support shaft; the contact wheel is connected with the driver through a coated abrasive. The free surface coated abrasive grinder can effectively reduce labor intensity of a worker and increase the machining efficiency, can also amend the ununiformity of leaf type allowance after milling, and can better ensure the surface quality of the molding surface.
Description
Technical field
The utility model relates to a kind of blade grinding-polishing equipment, is applicable to the efficient sbrasive belt grinding and the polishing of all kinds of gas turbine blades profiles.
Background technology
Gas turbine blades can be divided into two kinds of column type and meander configurations, and profile is made up of irregular spatial complex curved surface usually.Because the particularity of its use occasion requires blade to have higher surface quality, just require m less than Ra0.4 μ as the surface roughness value of certain compressor one-level moving vane.At present domestic and international large-size steam turbine manufacturing firm adopts the blade after 5-shaft linkage numerical control blade milling center processes finish forge more, with hand-held abrasive band or abrasive machine the milling mark on the blade is manually polished again, not only working (machining) efficiency is low, working strength of workers is very big, and crudy instability, be difficult to guarantee precision, particularly for large complicated profile blade, manual type is held blade, and to carry out the difficulty of grinding and polishing big, and efficient is very low.
External research through many decades, German IBS Polisys (former Metabo Polisys Gmbh﹠amp; Co.KG) company and Mitsubishi Heavy Ind. Ltd. have developed six multi-joint moving numerical control blade abrasive belt grinding machines of high-performance in succession, and it has carried out blockade on new techniques and high price monopolization to China as high-end dual-use lathe equipment.Because each coordinate of such numerical control device all adopts digital control servo system, makes its cost and operation easier improve greatly.
The utility model content
The free form surface abrasive belt grinding machine that provides a kind of working (machining) efficiency higher is provided technical problem to be solved in the utility model.
The technical solution of the utility model is as follows: a kind of free form surface abrasive belt grinding machine, comprise lathe bed, main shaft drives mechanism and tailstock, and its key is:
A, be arranged with two X-axis guide rails in parallel along its length direction at the upper surface of described lathe bed, this X-axis guide rail upper support has sliding table, end at sliding table is installed main shaft drives mechanism, other end mounted tailstock, and tailstock can slide on the auxiliary guide rail of sliding table upper surface;
B, reducing motor is installed at the middle part of described lathe bed, the output shaft of this reducing motor up and set gear, described gear is meshed with the tooth bar that is fixed on the sliding table bottom surface;
C, be provided with hoistable platform on the next door of described lathe bed, two Y-axis guide rails of the upper surface parallel laid of this hoistable platform have guide holder in Y-axis guide rail upper support, and this guide holder can slide on the Y-axis guide rail;
D, at the top of described guide holder mounting sleeve, be equipped with connecting axle in this sleeve pipe, connecting axle is fixedlyed connected with a side of location-plate, installing sleeve on the another side of location-plate, and be equipped with back shaft in the sleeve;
One end of E, described back shaft is installed drive motors, suit driving wheel on the output shaft of this drive motors; The other end at back shaft is fixed with the connection bearing, and this connects installs contact wheel and pull bar on the bearing, and contact wheel is connected with described driving wheel by the abrasive band.
Adopt above technical scheme, main shaft drives mechanism combines with tailstock, can be used for the blade that clamping is treated grinding and polishing, and main shaft drives mechanism can drive blade around its axis rotation, the axial motion of realization A; Tailstock slides at the auxiliary guide rail upper edge on sliding table surface X2 direction of principal axis, so that adapt to the blade of clamping different length.The power that sliding table moves is provided by reducing motor, and under the cooperation of gear, tooth bar, reducing motor can drive sliding table and make the axial straight line of X1 along the X-axis guide rail and move, and is convenient to different parts to the length of blade direction and carries out grinding and handle.The rotation of driving wheel is by driving motor supplies power, and driving wheel drives contact wheel by the abrasive band and rotates synchronously; With pulling moving pull bar, the straight line that can make guide holder make Y direction on the Y-axis guide rail moves; Contact wheel moves to the top of blade, and this moment, toward pressing down, making back shaft was that fulcrum rotates with the connecting axle with pull bar, realized the axial motion of C, and the abrasive band on the contact wheel contacts with blade, can begin grinding and polishing; When with hand left-right rotation pull bar, pull bar can also drive contact crop rotation swing by back shaft, with the axial motion of realization B, and reaches better grinding and polishing effect.
Compare with background technology, can reach the required precision of design to the profile error after the high vanes the utility model grinding and polishing of profile required precision, the utility model not only can be revised the inhomogeneities of blade profile surplus after the milling, especially in surface treatment curvature variation blade part greatly, can guarantee the dimensional accuracy of profile.And remove with the oxide skin of arc forging blade and to make it the better follow-up blade processing that adapts to.Simultaneously, the utility model effectively reduces working strength of workers, has improved working (machining) efficiency greatly, and the range of work is wider, but the large complicated profile blade of processing length 970mm～15000mm.
Both sides in above-mentioned sliding table bottom surface are fixed with turning rolls, by roller shaft roller are installed on this turning rolls, and roller is by the X-axis guide supporting of correspondence.Adopting between sliding table and the X-axis guide rail rolls cooperates, more smooth and easy when sliding table is moved.
Below above-mentioned hoistable platform, be provided with underframe, pass through the bearing supporting shaft on the underframe, at the rotating disk of the end of rotating shaft mounting strap handle, the middle part set gear of rotating shaft; Vertical fixing has support column and lead in the bottom surface of described hoistable platform, and wherein support column stretches in the sleeve pipe corresponding on the underframe, is distributed with the external tooth that can be meshed with described gear on the shaft of lead.When rotating rotating disk, the gear in the rotating shaft can drive lead and move up and down in Z-direction together with hoistable platform, is convenient to adjust contact wheel and blades height distance, to adapt to the processing of leaves requirement of different-diameter size.
Fixed tensioning seat on the back shaft between above-mentioned sleeve and the drive motors, the lower end of this backstand and tensioner arm is hinged, in the upper end of tensioner arm regulating wheel is installed, and described abrasive band is walked around from this regulating wheel.Regulating wheel can be regulated the rate of tension in abrasive band between driving wheel and the contact wheel, prevents that the abrasive band from coming off, and ensures the grinding and polishing of blade is handled and can be carried out smoothly.
Middle part at above-mentioned tensioner arm is provided with support arm, and the cantilever end of this support arm and the upper end of telescoping cylinder are hinged, and the lower end and the cylinder block of telescoping cylinder are hinged, and cylinder block is fixed on the back shaft.
Be fixed with anchor ear on the axle body of above-mentioned back shaft near the connection bearing, idle pulley is installed on the anchor ear, described abrasive band is walked around from this idle pulley.
Beneficial effect: the utility model is a kind of abrasive belt grinding machine that can replace digital control scheme, can carry out large-size steam turbine blade polishing grinding, it can carry out semi-automatic grinding to gas turbine blades and handle, and cost is low, simple to operate, working strength of workers is little, the efficient height of processing, the precision of processing is secure; It can revise the inhomogeneities of blade profile surplus after the milling, especially changes big blade part in surface treatment curvature, can guarantee the dimensional accuracy of profile, is a kind of desirable blade polishing equipment.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 1.
Fig. 4 is the assembling schematic diagram of hoistable platform and underframe in the utility model.
Fig. 5 is the left view of Fig. 1.
Fig. 6 is the vertical view of Fig. 5.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As Fig. 1, Fig. 2, shown in Figure 3, upper surface at lathe bed 1 is provided with two X-axis guide rails 4 along its length direction parallel laid, the top of X-axis guide rail 4 has sliding table 5, the both sides of these sliding table 5 bottom surfaces respectively are fixed with two turning rolls 24, by roller shaft roller 25 is installed on turning rolls 24, roller 25 is supported by the X-axis guide rail 4 of correspondence.Reducing motor 7 is installed at the middle part of lathe bed 1, the output shaft of this reducing motor 7 up and set gear 8, described gear 8 is meshed with the tooth bar 9 that is fixed on sliding table 5 bottom surfaces.When reducing motor 7 running, its power is by gear 8 and tooth bar 9, can drive sliding table 5 and make the axial straight line of X1 move on X-axis guide rail 4, is convenient to different parts to the length of blade direction and carries out grinding and handle.
As shown in Figure 1 and Figure 2, end at sliding table 5 upper surfaces is installed main shaft drives mechanism 2, the other end parallel laid of sliding table 5 upper surfaces is provided with two auxiliary guide rails 6, auxiliary guide rail 6 is parallel to X-axis guide rail 4, and auxiliary guide rail 6 upper supports have tailstock 3, and tailstock 3 can slide at auxiliary guide rail 6 upper edge X2 direction of principal axis.Main shaft drives mechanism 2 combines with tailstock 3, can be used for clamping blade to be ground, and main shaft drives mechanism 2 can drive blade around its axis rotation, to realize the axial motion of A; Tailstock 3 slides on the auxiliary guide rail 6 on sliding table 5 surfaces, so that adapt to the blade of clamping different length.Main shaft drives mechanism 2 is made up of parts such as motor, main spindle box and anchor clamps, and the structure of motor, main spindle box, anchor clamps and tailstock 3 is all same as the prior art, does not do at this and gives unnecessary details.
As Fig. 1, Fig. 4, shown in Figure 5, be provided with hoistable platform 10 on the next door of lathe bed 1, the below of hoistable platform 10 has underframe 26.In the bottom surface of hoistable platform 10 vertical fixing three support columns 31 and 32, three support columns 31 of a lead and lead 32 rectangular distributions are arranged, and support column 31 stretches on the underframe 26 in the corresponding sleeve pipe, be distributed with external tooth on the shaft of lead 32.On the described underframe 26 by two bearing 27 supporting shafts 28, at the rotating disk 29 of the end of rotating shaft 28 mounting strap handle, the middle part set gear 30 of rotating shaft 28, this gear 30 is meshed with external tooth on described lead 32 shafts.When rotating rotating disk 29, the gear 30 in the rotating shaft 28 can drive lead 32 and move up and down in Z-direction together with hoistable platform 10, is convenient to adjust bistrique and blades height distance, to adapt to the processing of leaves requirement of different-diameter size.
As Fig. 1, Fig. 2, Fig. 5 and shown in Figure 6, two Y-axis guide rails 11 of upper surface parallel laid at hoistable platform 10, this Y-axis guide rail 11 is perpendicular with X-axis guide rail 4, guide holder 12 is positioned at the top of Y-axis guide rail 11 and is supported by Y-axis guide rail 11, and guide holder 12 can be done the slip of Y direction on Y-axis guide rail 11.At the top of guide holder 12 fixed sleeving 13, the axial line of sleeve pipe 13 is parallel with X-axis guide rail 4, in sleeve pipe 13, be equipped with connecting axle 14, connecting axle 14 can rotate around sleeve pipe 13, fixedly connected with a side of the location-plate 15 that abuts in sleeve pipe 13 end faces in the end of this connecting axle 14, installing sleeve 16 on the another side of location-plate 15, the axial line of the axial line of sleeve 16 and sleeve pipe 13 is perpendicular, and wear back shaft 17 in the sleeve 16, back shaft 17 is fixing in the axial direction, and week upwards can turn left and right.One end of described back shaft 17 is fixed with bearing 41, and drive motors 18 and suit driving wheel 19 on the output shaft of drive motors 18 are installed on this bearing 41.The other end at back shaft 17 is installed anchor ear 42, fixedly connected bearing 20 on the anchor ear 42, this connects installs contact wheel 21 and pull bar 22 on the bearing 20, contact wheel 21 and pull bar 22 all are positioned at the top of sliding table 5, and contact wheel 21 is connected with described driving wheel 19 by abrasive band 23 (among Fig. 5 shown in the two-dot chain line), and pull bar 22 and back shaft 17 are arranged in the same way.
From Fig. 1, Fig. 2, Fig. 5 and Fig. 6 further as can be known, fixed tensioning seat 33 on the back shaft 17 between sleeve 16 and the drive motors 18, this backstand 33 is hinged with the lower end of tensioner arm 34, in the upper end of tensioner arm 34 regulating wheel 35 is installed, and described abrasive band 23 is walked around from this regulating wheel 35.Be provided with support arm 36 at the middle part of tensioner arm 34, the cantilever end of this support arm 36 and the upper end of telescoping cylinder 37 are hinged, the lower end of telescoping cylinder 37 and cylinder block 38 are hinged, and cylinder block 38 is fixed on the back shaft 17, and 33 separations of cylinder block 38 and backstand are in the both sides of sleeve 16.Be fixed with anchor ear 39 on the axle body of back shaft 17 near connection bearing 20, idle pulley 40 is installed on the anchor ear 39, described abrasive band 23 is also walked around from this idle pulley 40.The rotation of driving wheel 19 provides power by drive motors 18, driving wheel 18 drives contact wheel 21 by abrasive band 23 and rotates synchronously, with pulling moving pull bar 22, guide holder 12 is slided on Y-axis guide rail 11, contact wheel 21 move to blade directly over, this moment with pull bar 22 toward pressing down, making back shaft 17 is that fulcrum rotates with connecting axle 14, realized the axial motion of C, the abrasive band on the contact wheel 21 contacts with blade, can begin grinding and polishing; When with hand left-right rotation pull bar 22, pull bar 22 can also drive contact wheel 21 by back shaft 17 and swing, and has realized the axial motion of B, to reach better grinding and polishing effect.
Claims (6)
1, a kind of free form surface abrasive belt grinding machine comprises lathe bed (1), main shaft drives mechanism (2) and tailstock (3), it is characterized in that:
A, be arranged with two X-axis guide rails (4) in parallel along its length direction at the upper surface of described lathe bed (1), this X-axis guide rail (4) upper support has sliding table (5), end at sliding table (5) is installed main shaft drives mechanism (2), other end mounted tailstock (3), tailstock (3) can be gone up at the auxiliary guide rail (6) of sliding table (5) upper surface and slide;
B, reducing motor (7) is installed at the middle part of described lathe bed (1), the output shaft of this reducing motor (7) up and set gear (8), described gear (8) is meshed with the tooth bar (9) that is fixed on sliding table (5) bottom surface;
C, be provided with hoistable platform (10) on the next door of described lathe bed (1), two Y-axis guide rails of the upper surface parallel laid of this hoistable platform (10) (11), in Y-axis guide rail (11) upper support guide holder (12) is arranged, this guide holder (12) can be gone up at Y-axis guide rail (11) and slide;
D, at the top mounting sleeve (13) of described guide holder (12), be equipped with connecting axle (14) in this sleeve pipe (13), connecting axle (14) is fixedlyed connected with a side of location-plate (15), installing sleeve on the another side of location-plate (15) (16), and be equipped with back shaft (17) in the sleeve (16);
One end of E, described back shaft (17) is installed drive motors (18), suit driving wheel (19) on the output shaft of this drive motors (18); The other end at back shaft (17) is fixed with connection bearing (20), and this connects bearing (20) and goes up installation contact wheel (21) and pull bar (22), and contact wheel (21) is connected with described driving wheel (19) by abrasive band (23).
2, free form surface abrasive belt grinding machine according to claim 1, it is characterized in that: the both sides in described sliding table (5) bottom surface are fixed with turning rolls (24), this turning rolls (24) is gone up by roller shaft roller (25) is installed, and roller (25) is supported by the X-axis guide rail (4) of correspondence.
3, free form surface abrasive belt grinding machine according to claim 1, it is characterized in that: be provided with underframe (26) in the below of described hoistable platform (10), underframe (26) is gone up by bearing (27) supporting shaft (28), at the rotating disk (29) of the end of rotating shaft (28) mounting strap handle, the middle part set gear (30) of rotating shaft (28); Bottom surface vertical fixing at described hoistable platform (10) has support column (31) and lead (32), and wherein support column (31) stretches in the upward corresponding sleeve pipe of underframe (26), is distributed with the external tooth that can be meshed with described gear (30) on the shaft of lead (32).
4, free form surface abrasive belt grinding machine according to claim 1, it is characterized in that: the back shaft (17) between described sleeve (16) and drive motors (18) is gone up fixed tensioning seat (33), this backstand (33) is hinged with the lower end of tensioner arm (34), regulating wheel (35) is installed in upper end at tensioner arm (34), and described abrasive band (23) are walked around from this regulating wheel (35).
5, free form surface abrasive belt grinding machine according to claim 4, it is characterized in that: be provided with support arm (36) at the middle part of described tensioner arm (34), the upper end of cantilever end of this support arm (36) and telescoping cylinder (37) is hinged, the lower end of telescoping cylinder (37) and cylinder block (38) are hinged, and cylinder block (38) is fixed on the back shaft (17).
6, free form surface abrasive belt grinding machine according to claim 1, it is characterized in that: on the axle body of described back shaft (17), be fixed with anchor ear (39) near connection bearing (20), anchor ear (39) is gone up idle pulley (40) is installed, and described abrasive band (23) are walked around from this idle pulley (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201880428U CN201098829Y (en) | 2007-10-22 | 2007-10-22 | Free-form surface abrasive belt grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201880428U CN201098829Y (en) | 2007-10-22 | 2007-10-22 | Free-form surface abrasive belt grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201098829Y true CN201098829Y (en) | 2008-08-13 |
Family
ID=39935360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201880428U Expired - Lifetime CN201098829Y (en) | 2007-10-22 | 2007-10-22 | Free-form surface abrasive belt grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201098829Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664897B (en) * | 2009-09-11 | 2011-06-22 | 重庆三磨海达磨床有限公司 | Coated abrasive grinder of propeller blade |
| CN102632450A (en) * | 2012-04-25 | 2012-08-15 | 绍兴县鼎丰纺织器材有限公司 | Semi-automatic heald edge polishing machine for steel heald |
| CN102773781A (en) * | 2011-05-13 | 2012-11-14 | 阳东县国浩机械制造有限公司 | Rubbing and shaping device for abrasive belt |
| CN103894909A (en) * | 2014-04-17 | 2014-07-02 | 台州联帮机器人科技有限公司 | Abrasive belt supporting structure on abrasive belt grinding machine |
| CN103894910A (en) * | 2014-04-17 | 2014-07-02 | 台州联帮机器人科技有限公司 | Abrasive belt polishing machine |
| CN104511821A (en) * | 2014-12-20 | 2015-04-15 | 江门市江海区杰能机电科技有限公司 | Belt grinder for grinding knives and scissors |
| CN105269321A (en) * | 2014-06-18 | 2016-01-27 | 电子科技大学 | Blade numerical control milling-grinding-polishing composite processing machine tool and method thereof |
| CN105945687A (en) * | 2016-06-29 | 2016-09-21 | 重庆大学 | Rifle magazine full-profile robot polishing processing device |
| CN106514465A (en) * | 2016-12-30 | 2017-03-22 | 天津石泰集团有限公司 | T-shaped ring edge belt sander |
| CN107932270A (en) * | 2017-11-23 | 2018-04-20 | 江苏环宇冶金科技有限公司 | A kind of roll grinding apparatus |
| CN108436688A (en) * | 2018-05-30 | 2018-08-24 | 哈尔滨工业大学 | A kind of belt sanding tool mounted on robot end |
| CN109015263A (en) * | 2018-08-20 | 2018-12-18 | 重庆大学 | A kind of Double end digital control gear diameter of axle grinder |
| CN112692710A (en) * | 2020-12-30 | 2021-04-23 | 海宁市新兴紧固件股份有限公司 | End surface polishing device for high-precision pipe joint |
-
2007
- 2007-10-22 CN CNU2007201880428U patent/CN201098829Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664897B (en) * | 2009-09-11 | 2011-06-22 | 重庆三磨海达磨床有限公司 | Coated abrasive grinder of propeller blade |
| CN102773781A (en) * | 2011-05-13 | 2012-11-14 | 阳东县国浩机械制造有限公司 | Rubbing and shaping device for abrasive belt |
| CN102632450A (en) * | 2012-04-25 | 2012-08-15 | 绍兴县鼎丰纺织器材有限公司 | Semi-automatic heald edge polishing machine for steel heald |
| CN102632450B (en) * | 2012-04-25 | 2014-04-02 | 绍兴县鼎丰纺织器材有限公司 | Semi-automatic heald edge polishing machine for steel heald |
| CN103894909A (en) * | 2014-04-17 | 2014-07-02 | 台州联帮机器人科技有限公司 | Abrasive belt supporting structure on abrasive belt grinding machine |
| CN103894910A (en) * | 2014-04-17 | 2014-07-02 | 台州联帮机器人科技有限公司 | Abrasive belt polishing machine |
| CN105269321A (en) * | 2014-06-18 | 2016-01-27 | 电子科技大学 | Blade numerical control milling-grinding-polishing composite processing machine tool and method thereof |
| CN104511821A (en) * | 2014-12-20 | 2015-04-15 | 江门市江海区杰能机电科技有限公司 | Belt grinder for grinding knives and scissors |
| CN105945687A (en) * | 2016-06-29 | 2016-09-21 | 重庆大学 | Rifle magazine full-profile robot polishing processing device |
| CN106514465A (en) * | 2016-12-30 | 2017-03-22 | 天津石泰集团有限公司 | T-shaped ring edge belt sander |
| CN107932270A (en) * | 2017-11-23 | 2018-04-20 | 江苏环宇冶金科技有限公司 | A kind of roll grinding apparatus |
| CN108436688A (en) * | 2018-05-30 | 2018-08-24 | 哈尔滨工业大学 | A kind of belt sanding tool mounted on robot end |
| CN109015263A (en) * | 2018-08-20 | 2018-12-18 | 重庆大学 | A kind of Double end digital control gear diameter of axle grinder |
| CN112692710A (en) * | 2020-12-30 | 2021-04-23 | 海宁市新兴紧固件股份有限公司 | End surface polishing device for high-precision pipe joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080813 |