CN103213044A - High-precision sheet end face/side face grinding machine - Google Patents
High-precision sheet end face/side face grinding machine Download PDFInfo
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- CN103213044A CN103213044A CN2013101544910A CN201310154491A CN103213044A CN 103213044 A CN103213044 A CN 103213044A CN 2013101544910 A CN2013101544910 A CN 2013101544910A CN 201310154491 A CN201310154491 A CN 201310154491A CN 103213044 A CN103213044 A CN 103213044A
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- side faces
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Abstract
The invention relates to a high-precision sheet end face/side face grinding machine. The high-precision sheet end face/side face grinding machine can finish grinding machining to the end face/the side face of a workpiece. The high-precision sheet end face/side face grinding machine is characterized in that a grinding head (137) is applied to conducting reciprocating motion along an X-axis direction, the workpiece to be grinded is fixedly placed vertical to the X-axis direction, and the face to be machined is parallel to the motion direction of the grinding head (137); and the grinding head (137) can further conduct the feed motion along a Y-axis direction, and the grinding head (137) can further conduct the forward/reverse rotational motion by itself; and therefore the grinding (137) conducts the reciprocating motion along the X-axis direction, and can further conduct the feed motion along the Y-axis direction and the rotational motion by itself at the same time. The high-precision sheet end face/side face grinding machine can grind a sheet after making contact with the sheet, and therefore automatic grinding machining is achieved. The high-precision sheet end face/side face grinding machine has the advantages of being high in machining accuracy, and capable of meeting the technical requirements of which straightness is 1500:0.002 millimeters and perpendicularity is 1500:0.015 millimeters.
Description
Technical field
The present invention relates to a kind of high-precision grinder, be meant a kind of high accuracy thin plate end faces/side faces grinding machine especially.
Background technology
Because industrial requirement need carry out grinding to the end faces/side faces of thin plate, so that the smoothness of the end faces/side faces of thin plate and linearity and adjacent both ends face/lateral vertical side degree reach certain technical requirements.At present, manual carrying out all adopted in the processing of the sidewall of larger area thin plate, 0.1～40 millimeter thin plate particularly, thickness is little because its area is big, move and easy deformation even fracture fixedly the time, grinding attachment adds end faces/side faces and crimping takes place easily man-hour or situation such as crackle occurs, and must not cause a bit damage to thin plate in existing a lot of customer requirement process, comprise injuries such as scuffing, impression, such requirement has proposed very big challenge to present manual production.Because human eye is limited to minute sized resolution, so the low precision of handwork, parameters such as the linearity of the end faces/side faces of the thin plate that processing obtains, perpendicularity tend to bigger, can not satisfy user's demand; And handwork efficient is very low, the production cost height, and the market competitiveness is low; The potential safety hazard that exists is also bigger, and employee's life safety is more difficult to get guarantee.
Summary of the invention
The invention provides a kind of high accuracy thin plate end faces/side faces grinding machine, crimping takes place easily man-hour or situation such as crackle occurs to overcome exist in the prior art end faces/side faces is added, precision is poor, the linearity of product and problem such as perpendicularity can not reach requirement, production efficiency is low, production cost is high and potential safety hazard is big.
The present invention adopts following technical scheme:
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, high accuracy thin plate end faces/side faces grinding machine, it comprises lathe bed 1 and is assemblied in thin plate clamping workbench 11, thin plate hold-down mechanism 12, bistrique motion workbench 13 and operating mechanism 14 on this lathe bed 1.This lathe bed 1 periphery is provided with protective cover 10.This thin plate clamping workbench 11 comprises that upper surface is in the clamping workbench 151 of same horizontal plane and adds bench 152, above-mentioned thin plate hold-down mechanism 12 be located at this clamping workbench 151 directly over; This thin plate hold-down mechanism 12 is used for fixing thin plate, and this thin plate is placed on this thin plate clamping workbench 11, and the end faces/side faces to be processed of this thin plate is parallel to X-direction; In addition, thin plate clamping workbench 11 end faces are fixed with positioning key 153, this positioning key 153 arranges that along above-mentioned Y direction above-mentioned hold-down mechanism corresponding position is provided with the locating slot 154 that cooperates with this positioning key 153, and an end faces/side faces of this thin plate is close to this positioning key 153.This operating mechanism 14 is used to handle grinding machine work, and this operating mechanism 14 is equipped with and can makes the lever arm 141 that 360 degree rotate along horizontal plane, and this operating mechanism 14 is assemblied in the top of this lever arm 141 rotationally.This bistrique motion workbench 13 can be assemblied on this lathe bed 1 along X-direction reciprocatingly, be equiped with the bistrique 137 that can do forward or reverse rotation on this bistrique motion workbench 13, this bistrique 137 can be done feed motion along the Y direction perpendicular to this X-direction.In addition, above-mentioned thin plate hold-down mechanism 12 removably is fixed with upper clip 121, above-mentioned thin plate clamping workbench 11 removably is fixed with lower clamping piece 111, the end faces/side faces ground to be processed of this upper clip 121 and these lower clamping piece 111 clamping thin plates is provided with, and the present invention preferably this upper clip 121 and lower clamping piece 111 is cork.
Above-mentioned thin plate hold-down mechanism 12 comprises pressure strip 122 and is assemblied in supporting device 123, fastening mechanism 124 and switching mechanism 125 on the above-mentioned thin plate clamping workbench 11; This supporting device 123 is used to drive this pressure strip 122 and does upper and lower moving, and this fastening mechanism 124 is used to withhold this pressure strip 122, and this switching mechanism 125 is used to drive this pressure strip 122 and does upper and lower upset; First power output rod 156 that above-mentioned supporting device 123 comprises supporting driving device 155 and vertically is arranged at this supporting driving device 155, the side of above-mentioned pressure strip 122 is along being assemblied on the top of this first power output rod 156 rotatably about an axis; Above-mentioned fastening mechanism 124 comprises fastening drive unit 157 and compresses button 158, this fastening drive unit 157 comprises second power output rod 159 of vertical setting, this compresses button 158 and is installed in rotationally on the end of this second power output rod 159, this fastening drive unit 157 and above-mentioned supporting driving device 155 synchronous working ground are provided with, this fastening mechanism 124 also comprises buting iron 160, this buting iron 160 is provided with can put the above-mentioned skewed slot 161 that compresses button 158, this compresses button 158 and is the U font, and an end end that compresses button 158 connects above-mentioned second power output rod 159; The 3rd power output rod 163 that above-mentioned switching mechanism 125 comprises overturning drive device 162 and vertically is arranged at this overturning drive device 162, the 3rd power output rod 163 is provided with the tooth bar 164 of vertical layout, and above-mentioned pressure strip 122 corresponding positions fixedly are equiped with and this tooth bar 164 meshed gears 165.
Above-mentioned bistrique motion workbench 13 comprises base 131, slide plate 132, first drive unit 133 and grinding head body 134; This slide plate 132 can laterally be assemblied on this base 131 movably, and this first drive unit 133 is used to drive this slide plate 132 and moves along Y direction, and this grinding head body 134 fixedly is assemblied on this slide plate 132, and above-mentioned bistrique 137 is assemblied in this grinding head body 134.Be fixed with on the above-mentioned lathe bed 1 and drive second drive unit 139 that above-mentioned base 131 slides along X-direction.
By above-mentioned description to structure of the present invention as can be known, compare with prior art, the present invention has following advantage: the layout setting of grinding machine of the present invention is the end faces/side faces of processing sheet well, processing precision height, reached linearity 1500:0.002mm, the requirement of perpendicularity 1500:0.015mm; And the setting of this upper clip 121, lower clamping piece 111 makes grinding machine process the end faces/side faces of large-area thin plate (particularly ultra-thin plate) and crimping can not take place or situations such as crackle occur, can realize undamaged grinding; The position that is arranged so that workpiece of positioning key 153 is placed and is had benchmark, has guaranteed the perpendicularity requirement of product; In addition, this grinding machine can be realized automatic clamping/unclamp workpiece, the automaticity height, and production efficiency has obtained effective raising, and production cost has also obtained reduction, and this grinding machine greatly reduced potential safety hazard, has improved operating personnel's safety assurance.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of grinding machine.
Fig. 2 removes left TV structure schematic diagram behind the protective cover for grinding machine.
Fig. 3 is the plan structure schematic diagram of grinding machine.
Fig. 4 is the enlarged drawing of the local X among Fig. 3.
Fig. 5 is the pressure strip opened and the main TV structure schematic diagram of clamping workbench.
Fig. 6 is the pressure strip of closure and the main TV structure schematic diagram of clamping workbench.
The specific embodiment
The specific embodiment of the present invention is described with reference to the accompanying drawings.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, high accuracy thin plate end faces/side faces grinding machine, it comprises lathe bed 1 and is assemblied in thin plate clamping workbench 11, thin plate hold-down mechanism 12, bistrique motion workbench 13 and operating mechanism 14 on this lathe bed 1.This lathe bed 1 periphery is provided with protective cover 10, with the safety coefficient of protection grinding machine and raising grinding machine.This thin plate clamping workbench 11 comprises that upper surface is in the clamping workbench 151 of same horizontal plane and adds bench 152, above-mentioned thin plate hold-down mechanism 12 be located at this clamping workbench 151 directly over; This thin plate hold-down mechanism 12 is used for fixing thin plate, and this thin plate is placed on this thin plate clamping workbench 11, and the end faces/side faces to be processed of this thin plate is parallel to X-direction; In addition, thin plate clamping workbench 11 end faces are fixed with positioning key 153, this positioning key 153 is arranged along above-mentioned Y direction, above-mentioned hold-down mechanism corresponding position is provided with the locating slot 154 that cooperates with this positioning key 153, an end faces/side faces of this thin plate is close to this positioning key 153, workpiece to be processed is that benchmark is placed and fixed with this positioning key 153, and the position that is arranged so that workpiece of positioning key 153 is placed and had benchmark, has guaranteed the perpendicularity requirement of product.This operating mechanism 14 is used to handle grinding machine work, and this operating mechanism 14 is equipped with and can makes the lever arm 141 that 360 degree rotate along horizontal plane, and this operating mechanism 14 is assemblied in the top of this lever arm 141 rotationally.This bistrique motion workbench 13 can be assemblied on this lathe bed 1 along X-direction reciprocatingly, be equiped with the bistrique 137 that can do forward or reverse rotation on this bistrique motion workbench 13, this bistrique 137 can be done feed motion along the Y direction perpendicular to this X-direction.In addition, above-mentioned thin plate hold-down mechanism 12 removably is fixed with upper clip 121, above-mentioned thin plate clamping workbench 11 removably is fixed with lower clamping piece 111, the end faces/side faces ground to be processed of this upper clip 121 and these lower clamping piece 111 clamping thin plates is provided with, and the present invention preferably this upper clip 121 and lower clamping piece 111 is cork.The layout setting of grinding machine of the present invention is the end faces/side faces of processing sheet well, processing precision height, reached linearity 1500:0.002mm, (linearity is made up of shape (desirable contained shape), size (tolerance value), direction, position four elements in the requirement of perpendicularity 1500:0.015mm, be used to limit a rectilinear form deviation in the plane, the form variations of restricted quarter straight line on a certain direction, the form variations of restricted quarter straight line on either direction; Perpendicularity is to estimate between the straight line, between the plane or the plumbness between straight line and the plane, one of them straight line or plane are metewands, and straight line can be the straight line portion or the straight-line trajectory of sample, and the plane can be the planar section of sample or the plane that movement locus forms.); And the setting of this upper clip 121 and lower clamping piece 111 makes grinding machine process the end faces/side faces of large-area thin plate (particularly ultra-thin plate) and crimping can not take place or situations such as crackle occur, can realize undamaged grinding; In addition, this grinding machine can be realized automatic clamping/unclamp workpiece, the automaticity height, and production efficiency has obtained effective raising, and production cost has also obtained reduction, and this grinding machine greatly reduced potential safety hazard, has improved operating personnel's safety assurance.
Above-mentioned thin plate hold-down mechanism 12 comprises pressure strip 122 and is assemblied in supporting device 123, fastening mechanism 124 and switching mechanism 125 on the above-mentioned thin plate clamping workbench 11; This supporting device 123 is used to drive this pressure strip 122 and does upper and lower moving, and this fastening mechanism 124 is used to withhold this pressure strip 122, and this switching mechanism 125 is used to drive this pressure strip 122 and does upper and lower upset; First power output rod 156 that above-mentioned supporting device 123 comprises supporting driving device 155 and vertically is arranged at this supporting driving device 155, the side of above-mentioned pressure strip 122 is along being assemblied on the top of this first power output rod 156 rotatably about an axis; Above-mentioned fastening mechanism 124 comprises fastening drive unit 157 and compresses button 158, this fastening drive unit 157 comprises second power output rod 159 of vertical setting, this compresses button 158 and is installed in rotationally on the end of this second power output rod 159, this fastening drive unit 157 and above-mentioned supporting driving device 155 synchronous working ground are provided with, this fastening mechanism 124 also comprises buting iron 160, this buting iron 160 is provided with can put the above-mentioned skewed slot 161 that compresses button 158, this compresses button 158 and is the U font, and an end end that compresses button 158 connects above-mentioned second power output rod 159; The 3rd power output rod 163 that above-mentioned switching mechanism 125 comprises overturning drive device 162 and vertically is arranged at this overturning drive device 162, the 3rd power output rod 163 is provided with the tooth bar 164 of vertical layout, and above-mentioned pressure strip 122 corresponding positions fixedly are equiped with and this tooth bar 164 meshed gears 165.
Above-mentioned bistrique motion workbench comprises base 131, slide plate 132, first drive unit 133 and grinding head body 134; This slide plate 132 can laterally be assemblied on this base 131 movably, and this first drive unit 133 is used to drive this slide plate 132 and does feed motion along Y direction, and this grinding head body 134 fixedly is assemblied on this slide plate 132, and above-mentioned bistrique 137 is assemblied in this grinding head body 134.Above-mentioned lathe bed 11 is provided with the some chutes 135 that are arranged in parallel along X-direction, and these base 131 activities are assemblied on this chute 135.Above-mentioned grinding head body 134 also comprises along the rotation mandrel 136 of Y direction layout and drives the grinding wheel drive mitor 138 that these rotation mandrel 136 forwards/reverse are rotated, above-mentioned bistrique 137 is an emery wheel bistrique 137, this emery wheel bistrique 137 fixedly is assemblied on the end of this rotation mandrel 136, when grinding work was carried out, the axis of this rotation mandrel 136 and this thin plate were on the same horizontal plane; Be fixed with on the above-mentioned lathe bed 1 and drive second drive unit 139 that above-mentioned base 131 slides along X-direction.
At last, the working method of this grinding machine is as described below:
A., the thin plate workpiece is installed: the thin plate workpiece is lain on the workpiece storing face of clamping workbench 151, one side and on the sidewall that leans positioning key 153 of workpiece, be that benchmark places workpiece with positioning key 153.Control above-mentioned operating mechanism 14, starting overturning drive device 162 makes the 3rd power output rod 163 move upward, under the promotion of tooth bar 164, said gear 165 is done corresponding rotation, pressure strip 122 is promptly around axially rotating on horizontal plane down, at this moment, two sides of pressure strip 122 are along being held by first power output rod 156 and second power output rod 159 respectively, and the workpiece storing face of pressure strip 122 bottom surfaces and clamping workbench 151 is arranged in parallel; Next, till first power output rod 156, second power output rod 159 and the 3rd power output rod 163 move downward synchronously when the bottom surface of pressure strip 122 is pressed on the workpiece with suitable pressure, in this process, 159 drives of second power output rod compress button 158 and move downward, and are in the side edge of outwards routing up that button 158 inside upset under the spacing promotion of skewed slot 161 also progressively fastens pressure strip 122 that compresses; Being synchronized with the movement of first power output rod 156, second power output rod 159 and the 3rd power output rod 163 stops when workpiece surface is suppressed with the pressure of setting in the bottom surface of pressure strip 122, so far then finishes the clamping of workpiece and fixes.
B. grinding: control above-mentioned operating mechanism 14, make second drive unit 139 drive above-mentioned base 131 and move to initial station, first drive unit 133 drives slide plate 132 and moves, make emery wheel bistrique 137 be positioned on the optimal process position of Y direction, the position of fixed glides 132 on Y direction, second drive unit 139 drives above-mentioned base 131 and moves to the termination station by initial station along above-mentioned chute 135 orientations, promptly finished the processing of an end faces/side faces of thin plate workpiece, in this engineering, emery wheel bistrique 137 upper clips of grinding simultaneously 121, thin plate end faces/side faces and lower clamping piece 111 make that three's grinding face is in the same plane.
C. removal thin plate workpiece: first power output rod 156, second power output rod 159 and the 3rd power output rod 163 move upward synchronously and buckle 158 till the gravity effect falls into skewed slot 161 backs until compressing, second power output rod 159 moves downward then, tooth bar 164 driven gears 165 rotate and make pressure strip 122 upwards dig to certain gradient, and the workpiece of this moment can be by taking out on the clamping workbench 151.
During next end faces/side faces of processing sheet workpiece, manufactured end faces/side faces can be aimed at positioning key 153, can guarantee that like this perpendicularity of two end faces/side faces reaches corresponding requirement.
Above-mentioned only is the specific embodiment of the present invention, but design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (11)
1. high accuracy thin plate end faces/side faces grinding machine is characterized in that: comprise lathe bed (1) and be assemblied in thin plate clamping workbench (11), thin plate hold-down mechanism (12), bistrique motion workbench (13) and operating mechanism (14) on this lathe bed (1); This thin plate hold-down mechanism (12) is used for fixing the thin plate on this thin plate clamping workbench (11) of being placed on that end faces/side faces to be processed is parallel to X-direction, this operating mechanism (14) is used to handle grinding machine work, this bistrique motion workbench (13) can be assemblied on this lathe bed (1) along X-direction reciprocatingly, be equiped with the bistrique (137) that can do forward or reverse rotation on this bistrique motion workbench (13), this bistrique (137) can be done feed motion along the Y direction perpendicular to this X-direction.
2. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 1, it is characterized in that: described thin plate clamping workbench (11) end face is fixed with positioning key (153), this positioning key (153) arranges that along described Y direction described hold-down mechanism corresponding position is provided with the locating slot (154) that cooperates with this positioning key (153).
3. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 1 is characterized in that: described thin plate hold-down mechanism (12) comprises pressure strip (122) and is assemblied in supporting device (123), fastening mechanism (124) and switching mechanism (125) on the described thin plate clamping workbench (11); This supporting device (123) is used to drive this pressure strip (122) and does upper and lower moving, and this fastening mechanism (124) is used to withhold this pressure strip (122), and this switching mechanism (125) is used to drive this pressure strip (122) and does upper and lower upset;
First power output rod (156) that described supporting device (123) comprises supporting driving device (155) and vertically is arranged at this supporting driving device (155), the side of described pressure strip (122) is along being assemblied on the top of this first power output rod (156) rotatably about an axis;
Described fastening mechanism (124) comprises fastening drive unit (157) and compresses button (158), this fastening drive unit (157) comprises second power output rod (159) of vertical setting, this compresses on the end that button (158) is installed in this second power output rod (159) rotationally, and this fastening drive unit (157) and described supporting driving device (155) synchronous working ground are provided with;
The 3rd power output rod (163) that described switching mechanism (125) comprises overturning drive device (162) and vertically is arranged at this overturning drive device (162), the 3rd power output rod (163) is provided with the tooth bar (164) of vertical layout, and described pressure strip (122) corresponding position fixedly is equiped with and this tooth bar (164) meshed gears (165).
4. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 3, it is characterized in that: described fastening mechanism (124) also comprises buting iron (160), this buting iron (160) is provided with can put the described skewed slot (161) that compresses button (158), this compresses button (158) and is the U font, and an end end that compresses button (158) connects described second power output rod (159).
5. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 1 is characterized in that: described bistrique motion workbench (13) comprises base (131), slide plate (132), first drive unit (133) and grinding head body (134); This slide plate (132) can laterally be assemblied on this base (131) movably, this first drive unit (133) is used to drive this slide plate (132) and moves along Y direction, this grinding head body (134) fixedly is assemblied on this slide plate (132), and described bistrique (137) is assemblied in this grinding head body (134).
6. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 5 is characterized in that: be fixed with on the described lathe bed (1) and drive second drive unit (139) that described base (131) slides along X-direction.
7. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 1, it is characterized in that: described operating mechanism (14) is equipped with and can makes the lever arm (141) that 360 degree rotate along horizontal plane, and this operating mechanism (14) is assemblied in the top of this lever arm (141) rotationally.
8. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 1, it is characterized in that: described thin plate hold-down mechanism (12) removably is fixed with upper clip (121), described thin plate clamping workbench (11) removably is fixed with lower clamping piece (111), and the end faces/side faces ground to be processed of this upper clip (121) and this lower clamping piece (111) clamping thin plate is provided with.
9. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 8 is characterized in that: described upper clip (121) and lower clamping piece (111) are respectively cork upper clip (121) and cork lower clamping piece (111).
10. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 1, it is characterized in that: described thin plate clamping workbench (11) comprises that upper surface is in the clamping workbench (151) of same horizontal plane and adds bench (152), described thin plate hold-down mechanism (12) be located at this clamping workbench (151) directly over.
11. high accuracy thin plate end faces/side faces grinding machine as claimed in claim 1 is characterized in that: described lathe bed (1) periphery is provided with protective cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154491.0A CN103213044B (en) | 2013-04-28 | 2013-04-28 | High-precision sheet end face/side face grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154491.0A CN103213044B (en) | 2013-04-28 | 2013-04-28 | High-precision sheet end face/side face grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103213044A true CN103213044A (en) | 2013-07-24 |
| CN103213044B CN103213044B (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310154491.0A Expired - Fee Related CN103213044B (en) | 2013-04-28 | 2013-04-28 | High-precision sheet end face/side face grinding machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2649260Y (en) * | 2003-10-09 | 2004-10-20 | 李三通 | Stone side automatic grinding-polishing machine |
| CN2908033Y (en) * | 2006-03-27 | 2007-06-06 | 刘景国 | Artificial board edge grinding machine |
| CN201132285Y (en) * | 2007-11-06 | 2008-10-15 | 刘小辉 | Grinding head assembly for edge-grinding machine |
| DE102011018205B3 (en) * | 2011-04-13 | 2012-10-04 | Armin Hofmann | Clamping device for clamping workpieces, has clamping element connected with housing by connecting links, where clamping element is coupled with piston by other connecting links |
| CN203185143U (en) * | 2013-04-28 | 2013-09-11 | 南安市伟峰机械制造有限公司 | High-precision thin plate end face / side face grinding machine |
-
2013
- 2013-04-28 CN CN201310154491.0A patent/CN103213044B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2649260Y (en) * | 2003-10-09 | 2004-10-20 | 李三通 | Stone side automatic grinding-polishing machine |
| CN2908033Y (en) * | 2006-03-27 | 2007-06-06 | 刘景国 | Artificial board edge grinding machine |
| CN201132285Y (en) * | 2007-11-06 | 2008-10-15 | 刘小辉 | Grinding head assembly for edge-grinding machine |
| DE102011018205B3 (en) * | 2011-04-13 | 2012-10-04 | Armin Hofmann | Clamping device for clamping workpieces, has clamping element connected with housing by connecting links, where clamping element is coupled with piston by other connecting links |
| CN203185143U (en) * | 2013-04-28 | 2013-09-11 | 南安市伟峰机械制造有限公司 | High-precision thin plate end face / side face grinding machine |
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| CN103213044B (en) | 2015-03-11 |
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Granted publication date: 20150311 Termination date: 20160428 |