CN115365914A - Cylindrical grinding type surface grinding machine - Google Patents
Cylindrical grinding type surface grinding machine Download PDFInfo
- Publication number
- CN115365914A CN115365914A CN202211033100.5A CN202211033100A CN115365914A CN 115365914 A CN115365914 A CN 115365914A CN 202211033100 A CN202211033100 A CN 202211033100A CN 115365914 A CN115365914 A CN 115365914A
- Authority
- CN
- China
- Prior art keywords
- grinding
- frame
- emery wheel
- linear guide
- work piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention provides an excircle grinding type surface grinding machine which comprises a rack, a linear guide rail, a lifting mechanism, a workpiece clamping mechanism, a grinding wheel, an abrasive paper fine grinding mechanism, a linear driving mechanism and a transmission rod, wherein the lifting mechanism is arranged on the rack, the lifting mechanism is provided with the workpiece clamping mechanism for clamping a workpiece and driving the workpiece to rotate, the linear guide rail is arranged above and below the lifting mechanism, a sliding block is arranged on the linear guide rail in a matched mode, the sliding block positioned on the upper side of the lifting mechanism is provided with a bottom plate, and the grinding wheel is rotatably arranged on the bottom plate. Carry out the cylindrical grinding processing through the emery wheel to the work piece, and emery paper fine grinding mechanism can clip abrasive paper and utilize abrasive paper to carry out the correct grinding to the work piece, the emery wheel of different mesh numbers also can realize corase grind and correct grinding certainly, but need change the emery wheel, the part of fastening emery wheel need be pulled down to more smooth emery wheel, influence machining efficiency is lower, the lower condition of machining efficiency that different mesh numbers emery wheel leads to has been avoided changing to the emery wheel fine grinding mechanism under the prerequisite of guaranteeing the processing effect.
Description
Technical Field
The invention relates to the technical field of grinding, in particular to a cylindrical grinding type surface grinding machine.
Background
The cylindrical grinding type surface grinding machine is characterized in that the cylindrical grinding type surface grinding machine is provided with a CN100488718, the cylindrical grinding type surface grinding machine is connected with a power device through a transmission device, a shaft workpiece is arranged on a clamping device, and a grinding device moving along the y direction and the z direction is arranged above the shaft workpiece. Divide into rough machining and finish machining when grinding, two kinds of different processing modes need the emery wheel of different mesh numbers to realize, if directly adopt the finished emery wheel can lead to machining efficiency lower, and the emery wheel that directly adopts rough machining can lead to unable grinding requirement of reaching, just so need change the emery wheel of different mesh numbers when actual application, and need pull down the subassembly of fixed emery wheel and then install again when changing the emery wheel, and then be not convenient for operate and influence machining efficiency.
Disclosure of Invention
The invention aims to provide a cylindrical grinding type surface grinding machine to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an cylindrical grinding formula flat grinder, includes frame, linear guide, elevating system, work piece fixture, emery wheel, abrasive paper fine grinding mechanism, linear drive mechanism and transfer line, elevating system sets up in the frame, and is equipped with on the elevating system to be used for centre gripping work piece and drive work piece pivoted work piece fixture, and elevating system's top and below all are equipped with linear guide, and wherein the slider is installed in the last cooperation of linear guide, wherein:
the slider that is located the elevating system upside is equipped with the bottom plate, the emery wheel rotates and installs on the bottom plate, and wherein the central axis of emery wheel and work piece fixture's the central axis is on same vertical plane, sand paper fine grinding mechanism includes the bracing piece, removes the frame, supports swing arm, torsional spring and sand paper clamping part, the bracing piece sets up on the slider that is located the elevating system downside, remove the frame and set up on the bracing piece, the both sides of removing the frame articulate respectively and have the support swing arm, and support the swing arm and remove and be equipped with the torsional spring between the frame, and the tip that supports the swing arm is equipped with the sand paper clamping part, and the sand paper clamping part is used for cliping sand paper, linear drive mechanism is located between two sets of linear guide, and wherein linear drive mechanism is used for driving the slider on the linear guide.
Preferably, the outer circumferential surface of the support rod is provided with a guide key, and the guide groove of the inner circumferential surface of the movable frame is matched with the guide key of the outer circumferential surface of the support rod, so that the movable frame forms a moving pair in the direction of the central axis of the support rod.
Preferably, the side of the moving frame is provided with a push rod, the rack is provided with a top plate, the push rod is in contact with the side of the top plate, the side of the top plate is provided with a protruding part at equal intervals, and when the push rod is in contact with the protruding part, the moving frame can be driven to move.
Preferably, a spring is arranged between the moving frame and the sliding block on the linear guide rail.
Preferably, a transmission rod is arranged on an actuating part of the linear driving mechanism, wherein the transmission rod can be lifted in the vertical direction, and two ends of the transmission rod respectively face through holes of the vertically arranged sliders.
Preferably, the abrasive paper clamping part includes lower plate, punch holder and lead screw, the lower plate sets up at the tip that supports the swing arm, and punch holder movable mounting is on the lower plate, and the lead screw rotates the installation on the lower plate, and wherein the lead screw runs through the punch holder and forms threaded connection with the punch holder.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the workpiece is subjected to excircle grinding processing through the grinding wheel, the abrasive paper fine grinding mechanism can clamp abrasive paper and finely grind the workpiece through the abrasive paper, and certainly, the coarse grinding and the fine grinding of the grinding wheels with different meshes can be realized, but the grinding wheel needs to be replaced, and the part for fastening the grinding wheel needs to be detached for the smooth grinding wheel, so that the processing efficiency is low, and the abrasive paper fine grinding mechanism avoids the condition of low processing efficiency caused by replacing the grinding wheels with different meshes on the premise of ensuring the processing effect.
Drawings
FIG. 1 is a three-dimensional schematic of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a three-dimensional schematic view of a coated abrasive finishing mechanism of the present invention;
FIG. 4 is a schematic view of portion A of FIG. 1;
fig. 5 is a three-dimensional schematic view of a sandpaper retaining portion of the present invention.
In the figure: the device comprises a machine frame 1, a linear guide rail 2, a lifting mechanism 3, a workpiece clamping mechanism 4, a grinding wheel 5, a sand paper fine grinding mechanism 6, a linear driving mechanism 7, a transmission rod 8, a bottom plate 51, a supporting rod 61, a moving frame 62, a supporting swing arm 63, a torsion spring 64, a sand paper clamping part 65, a top plate 66, a spring 67, a lower clamp plate 651, an upper clamp plate 652 and a lead screw 653.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment is as follows:
referring to fig. 1 to 5, the present invention provides a technical solution:
an external grinding type surface grinding machine comprises a frame 1, linear guide rails 2, a lifting mechanism 3, a workpiece clamping mechanism 4, a grinding wheel 5, a sand paper fine grinding mechanism 6, a linear driving mechanism 7 and a transmission rod 8, wherein the lifting mechanism 3 is arranged on the frame 1, preferably two double-shaft hydraulic cylinders which are oppositely arranged are arranged on the lifting mechanism 3, the workpiece clamping mechanism 4 used for clamping a workpiece and driving the workpiece to rotate is arranged on the lifting mechanism 3, the linear guide rails 2 are arranged above and below the lifting mechanism 3, sliding blocks are arranged on the linear guide rails 2 in a matched mode, and the linear guide rails 2 are arranged in pairs for ensuring the supporting and guiding effects;
the slider that is located elevating system 3 upside is equipped with bottom plate 51, emery wheel 5 rotates and installs on bottom plate 51 and it rotates by motor drive, then pivoted emery wheel 5 can carry out abrasive machining to the work piece, wherein the central axis of emery wheel 5 and the central axis of work piece fixture 4 are on same vertical plane, emery paper fine grinding mechanism 6 includes bracing piece 61, remove the frame 62, support swing arm 63, torsional spring 64 and emery paper clamping part 65, bracing piece 61 sets up on the slider that is located elevating system 3 downside, remove the frame 62 and set up on bracing piece 61, the both sides of removing the frame 62 articulate respectively has support swing arm 63, and be equipped with torsional spring 64 between support swing arm 63 and the removal frame 62, and then provide torsion for supporting swing arm 63 through torsional spring 64, the tip that supports swing arm 63 is equipped with emery paper clamping part 65, and clamping part 65 is used for cliping, linear drive mechanism 7 is located between two sets of linear guide 2, wherein linear drive mechanism 7 is used for driving the slider on the linear guide 2.
As a preferred embodiment, the workpiece clamping mechanism 4 is a conical mandril which is oppositely arranged, wherein the two conical mandrils are respectively positioned at the power output ends of the two double-shaft hydraulic cylinders, one of the conical mandrils is rotatably installed at the power output end of the double-shaft hydraulic cylinder and is driven by a motor to rotate, the other conical mandrils is movably installed at the power output end of the double-shaft hydraulic cylinder, and then the conical mandrils which are movably installed on the double-shaft hydraulic cylinder can be close to or far away from the other conical mandrils, so that the clamping of the workpiece is realized. The solution in which the clamping of the workpiece and the driving thereof into rotation are well known means in the field of machining and the principle thereof will not be described in detail here.
In a preferred embodiment, the outer circumferential surface of the supporting rod 61 is provided with a guide key, and the guide groove of the inner circumferential surface of the moving frame 62 is matched with the guide key of the outer circumferential surface of the supporting rod 61, so that the moving frame 62 forms a moving pair in the central axis direction of the supporting rod 61, and the moving frame 62 cannot be freely turned over, and only has one degree of freedom in the central axis of the supporting rod 61, the side surface of the moving frame 62 is provided with a push rod 621, the machine frame 1 is provided with a top plate 66, wherein the push rod 621 is in contact with the side surface of the top plate 66, and the side surface of the top plate 66 in contact with the push rod 621 is provided with a protrusion at equal distance, when the push rod 621 is in contact with the protrusion, the moving frame 62 can be driven to displace, a spring 67 is arranged between the moving frame 62 and the slider on the linear guide 2, and the spring 67 provides a return elastic force for the moving frame 62, so that the moving frame 62 can perform reciprocating translation.
In a preferred embodiment, the actuator of the linear driving mechanism 7 is provided with a transmission rod 8, wherein the transmission rod 8 can be lifted and lowered in the vertical direction, and two ends of the transmission rod 8 respectively face through holes of the sliders arranged up and down, so that the sliders can be interlocked with the linear driving mechanism 7 when the ends of the transmission rod 8 are in contact with the sliders at different positions. And the linear driving mechanism 7 is preferably a linear screw rod driving threaded sleeve kinematic pair.
In a preferred embodiment, the sandpaper holding portion 65 includes a lower plate 651 disposed at an end of the supporting swing arm 63, an upper plate 652 movably mounted on the lower plate 651, wherein both the upper plate 652 and the lower plate 651 are provided with rubber pads for increasing friction, and a lead screw 653 rotatably mounted on the lower plate 651, wherein the lead screw 653 penetrates through the upper plate 652 and is threadedly coupled with the upper plate 652. Wherein abrasive paper is the centre gripping between lower plate 651 and punch holder 652, and two tip that support swing arm 63 all are equipped with abrasive paper clamping part 65, consequently realize the centre gripping to the abrasive paper both ends, and only need rotate lead screw 653 when changing abrasive paper, can adjust the position of punch holder 652, realize quick centre gripping or take off abrasive paper.
According to the using principle of the grinding machine, a workpiece is placed between the workpiece clamping mechanisms 4, the conical ejector rod with the position adjustable is pushed at the moment, then the workpiece is clamped, the conical ejector rod connected with the motor drives the workpiece to rotate, then the transmission rod 8 is pushed to rise, the top of the transmission rod 8 penetrates through the sliding block used for guiding the grinding wheel 5, the linear driving mechanism 7 drives the grinding wheel 5 to translate along the direction of the central axis of the workpiece when acting, then the lifting mechanism 3 drives the workpiece to rise and contact with the grinding wheel 5, and then the rotating grinding wheel 5 can grind the rotating workpiece;
can carry out the finish machining to the work piece through abrasive paper fine grinding mechanism 6 after the grinding of emery wheel 5 is accomplished, specifically be, promote transfer line 8 and descend, make the top of transfer line 8 run through the slider of being connected with bracing piece 61, linear drive mechanism 7 will drive bracing piece 61 translation this moment, then elevating system 3 drive work piece descends and contacts with the abrasive paper of fixing on abrasive paper clamping part 65, because linear drive mechanism 7 drive abrasive paper fine grinding mechanism 6 is along the central axis direction translation of work piece, therefore abrasive paper can carry out the finish grinding to the work piece, and support swing arm 63 and swing towards the direction of drawing close each other when abrasive paper contacts with the work piece, and then abrasive paper wraps the work piece and realizes the face contact, and moving frame 62 moves thereupon when bracing piece 61 translation, then push rod 621 will pass through the bellying on roof 66 in proper order, this moment, abrasive paper moves frame 62 and realizes reciprocating translation, and then guaranteed the grinding effect to the work piece.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an cylindrical grinding formula flat grinder, includes frame (1), linear guide (2), elevating system (3), work piece fixture (4), emery wheel (5), abrasive paper fine grinding mechanism (6), linear drive mechanism (7) and transfer line (8), elevating system (3) set up in frame (1), and be equipped with on elevating system (3) and be used for centre gripping work piece and drive work piece pivoted work piece fixture (4), the top and the below of elevating system (3) all are equipped with linear guide (2), and wherein the slider is installed in the cooperation on linear guide (2), its characterized in that:
the slider that is located elevating system (3) upside is equipped with bottom plate (51), emery wheel (5) rotate to be installed on bottom plate (51), wherein the central axis of emery wheel (5) and the central axis of work piece fixture (4) are on same vertical plane, emery paper fine grinding mechanism (6) include bracing piece (61), remove frame (62), support swing arm (63), torsional spring (64) and emery paper clamping part (65), bracing piece (61) set up on the slider that is located elevating system (3) downside, remove frame (62) and set up on bracing piece (61), the both sides that remove frame (62) articulate respectively have support swing arm (63), and support and be equipped with emery paper (64) between swing arm (63) and removal frame (62), the tip that supports swing arm (63) is equipped with abrasive paper clamping part (65), and clamping part (65) are used for cliping, linear drive mechanism (7) are located between two sets of linear guide (2), wherein linear drive mechanism (7) are used for driving the slider on linear guide (2).
2. The cylindrical grinding type surface grinding machine according to claim 1, characterized in that: the outer circle surface of the supporting rod (61) is provided with a guide key, and the guide groove of the inner circle surface of the moving frame (62) is matched with the guide key of the outer circle surface of the supporting rod (61), so that the moving frame (62) forms a moving pair in the central axis direction of the supporting rod (61).
3. The cylindrical grinding type surface grinding machine according to claim 1, characterized in that: move the side of frame (62) and be equipped with push rod (621), be equipped with roof (66) on frame (1), wherein the side contact of push rod (621) and roof (66), and the side equidistance of roof (66) is equipped with the bellying, can drive when push rod (621) and bellying contact and move frame (62) displacement.
4. The cylindrical grinding type surface grinding machine according to claim 3, characterized in that: and a spring (67) is arranged between the moving frame (62) and the sliding block on the linear guide rail (2).
5. The cylindrical grinding type surface grinding machine according to claim 1, characterized in that: and an actuating part of the linear driving mechanism (7) is provided with a transmission rod (8), wherein the transmission rod (8) can be lifted in the vertical direction, and two ends of the transmission rod (8) respectively face through holes of the sliders arranged up and down.
6. The cylindrical grinding type surface grinding machine according to claim 1, characterized in that: the sandpaper clamping part (65) comprises a lower clamp plate (651), an upper clamp plate (652) and a lead screw (653), wherein the lower clamp plate (651) is arranged at the end part of a supporting swing arm (63), the upper clamp plate (652) is movably arranged on the lower clamp plate (651), the lead screw (653) is rotatably arranged on the lower clamp plate (651), and the lead screw (653) penetrates through the upper clamp plate (652) and is in threaded connection with the upper clamp plate (652).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033100.5A CN115365914A (en) | 2022-08-26 | 2022-08-26 | Cylindrical grinding type surface grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033100.5A CN115365914A (en) | 2022-08-26 | 2022-08-26 | Cylindrical grinding type surface grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115365914A true CN115365914A (en) | 2022-11-22 |
Family
ID=84068122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211033100.5A Withdrawn CN115365914A (en) | 2022-08-26 | 2022-08-26 | Cylindrical grinding type surface grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115365914A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2576416Y (en) * | 2002-11-12 | 2003-10-01 | 湖南大学 | High-speed and super-high-speed plane grinding and cylindrical grinding apparatus |
| CN1822918A (en) * | 2003-07-22 | 2006-08-23 | 罗伯特·博世有限公司 | Sanding apparatus for a sanding machine |
| CN106041694A (en) * | 2016-07-26 | 2016-10-26 | 锐奇控股股份有限公司 | Abrasive paper clamping structure of sanding machine |
| CN207982950U (en) * | 2018-01-12 | 2018-10-19 | 佛山市高明恒兴钢业有限公司 | A kind of sander |
| CN209491634U (en) * | 2019-02-17 | 2019-10-15 | 绵阳二四机械有限公司 | A kind of rod-shaped components grinding and polishing tooling |
| CN210360959U (en) * | 2019-07-16 | 2020-04-21 | 常州冠日电器工具有限公司 | Abrasive paper convenient to clamping |
| CN211029264U (en) * | 2019-07-25 | 2020-07-17 | 浙江希尔富电气有限公司 | High-efficient grinding device of pivot |
| CN112496887A (en) * | 2020-12-01 | 2021-03-16 | 义乌融鹄电子科技有限公司 | Outer side wall abrasive paper grinding mechanism of round rod |
| KR102257434B1 (en) * | 2021-02-18 | 2021-05-31 | 티아이씨(주) | Lapping device of screw for planetary roller screw |
| CN214025099U (en) * | 2020-11-30 | 2021-08-24 | 中国二冶集团有限公司 | Pipeline rust removing device |
| CN215394440U (en) * | 2021-06-02 | 2022-01-04 | 福建华清电子材料科技有限公司 | Base plate surface vibrating mill |
| CN114029836A (en) * | 2021-11-25 | 2022-02-11 | 浙江傅氏机械科技有限公司 | Grinding and polishing integrated machine tool |
| CN215920033U (en) * | 2021-04-17 | 2022-03-01 | 江苏奕达研磨材料有限公司 | Mechanical polishing equipment abrasive paper installation device |
-
2022
- 2022-08-26 CN CN202211033100.5A patent/CN115365914A/en not_active Withdrawn
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2576416Y (en) * | 2002-11-12 | 2003-10-01 | 湖南大学 | High-speed and super-high-speed plane grinding and cylindrical grinding apparatus |
| CN1822918A (en) * | 2003-07-22 | 2006-08-23 | 罗伯特·博世有限公司 | Sanding apparatus for a sanding machine |
| CN106041694A (en) * | 2016-07-26 | 2016-10-26 | 锐奇控股股份有限公司 | Abrasive paper clamping structure of sanding machine |
| CN207982950U (en) * | 2018-01-12 | 2018-10-19 | 佛山市高明恒兴钢业有限公司 | A kind of sander |
| CN209491634U (en) * | 2019-02-17 | 2019-10-15 | 绵阳二四机械有限公司 | A kind of rod-shaped components grinding and polishing tooling |
| CN210360959U (en) * | 2019-07-16 | 2020-04-21 | 常州冠日电器工具有限公司 | Abrasive paper convenient to clamping |
| CN211029264U (en) * | 2019-07-25 | 2020-07-17 | 浙江希尔富电气有限公司 | High-efficient grinding device of pivot |
| CN214025099U (en) * | 2020-11-30 | 2021-08-24 | 中国二冶集团有限公司 | Pipeline rust removing device |
| CN112496887A (en) * | 2020-12-01 | 2021-03-16 | 义乌融鹄电子科技有限公司 | Outer side wall abrasive paper grinding mechanism of round rod |
| KR102257434B1 (en) * | 2021-02-18 | 2021-05-31 | 티아이씨(주) | Lapping device of screw for planetary roller screw |
| CN215920033U (en) * | 2021-04-17 | 2022-03-01 | 江苏奕达研磨材料有限公司 | Mechanical polishing equipment abrasive paper installation device |
| CN215394440U (en) * | 2021-06-02 | 2022-01-04 | 福建华清电子材料科技有限公司 | Base plate surface vibrating mill |
| CN114029836A (en) * | 2021-11-25 | 2022-02-11 | 浙江傅氏机械科技有限公司 | Grinding and polishing integrated machine tool |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20221122 |
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| WW01 | Invention patent application withdrawn after publication |