CN113134755A - Center hole double-side grinding equipment - Google Patents
Center hole double-side grinding equipment Download PDFInfo
- Publication number
- CN113134755A CN113134755A CN202110461088.7A CN202110461088A CN113134755A CN 113134755 A CN113134755 A CN 113134755A CN 202110461088 A CN202110461088 A CN 202110461088A CN 113134755 A CN113134755 A CN 113134755A
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- Prior art keywords
- hard alloy
- center
- tip
- seat
- hexagonal
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- 238000000227 grinding Methods 0.000 title claims abstract description 39
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 42
- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- 239000000956 alloy Substances 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000003754 machining Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Images
Classifications
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- 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
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
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- 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
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
- B24B41/062—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
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- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- 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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/006—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the speed
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Abstract
The invention relates to the field of grinding equipment and discloses center hole double-sided grinding equipment which comprises a dead center seat, a first hexagonal hard alloy center, a stepless speed regulating motor, a drive plate, a second hexagonal hard alloy center, a movable center seat, two sliding blocks and a sliding rail, wherein the two sliding blocks are arranged at the left end and the right end of the sliding rail respectively, the dead center seat is installed at the top of the sliding block at one side, the movable center seat is installed at the top of the sliding block at the other side, and the first hexagonal hard alloy center is installed in the middle of the dead center seat. According to the center hole double-side grinding equipment, the center holes at two ends of the shaft are effectively ground by the grinding center, the roundness error of the center hole is greatly improved, the technical problems that the roundness and the coaxiality of an excircle generated after the shaft is machined are poor and the like are further solved, a positioning precision reference is provided for precision machining of rotating shaft parts, and the machining precision and the machining efficiency of parts are greatly improved.
Description
Technical Field
The invention relates to the field of grinding equipment, in particular to center hole double-sided grinding equipment.
Background
In the field of machining, shaft parts are closely related to a central hole when machining of the shaft parts is needed, a positioning mode that the machining of high-precision shaft parts cannot be carried out based on a precise reference is adopted, for high-precision shaft parts above IT6 level, the surface roughness requirement of a positioning conical surface of the central hole is not lower than Ra0.8, the roundness error is not lower than 0.8 mu m, the contact area of the taper and the center of a grinding machine is more than 80%, the precision requirement is difficult to guarantee only by drilling a central hole, the traditional central hole machining process mode is carried out in a step by positioning the excircle of a blank, and the concentric shafts of the central holes at two ends cannot be completely guaranteed. After the workpiece is subjected to heat treatment, the center hole is easy to deform, the positioning reference of grinding processing is influenced, in addition, factors such as abrasion and galling of the center hole caused by various reasons, oxide skin after heat treatment, part deformation and the like all tend to influence the precision of subsequent grinding processing of the shaft parts; therefore, the ground central hole provides a fine reference for subsequent production and processing, the positioning precision and the repeated positioning precision are obviously improved, and the size precision and the shape precision are greatly improved; the dynamic balance performance is good under the working condition of high-speed rotation, and the uneven acting force borne by the rotating shaft under the action of alternating load is smaller, so that the service life of the rotating shaft is greatly prolonged.
The center hole double-sided grinding equipment is mainly used for grinding center holes at two ends of a shaft with the diameter within phi 50mm and the length within 150 mm. The application range of the device covers the parts such as the assembly of a series of rotating shafts and rotors of a control type synchro, a stepping motor, a brushless motor, a torque motor, a servo motor and the like.
At present, no special center hole grinding equipment exists, workers mainly grind the holes by manually and repeatedly rotating a center drill bit with a standard diameter for several times in a whole circle, the balance and the uniformity cannot be mastered by manual operation, and the effect of changing and improving the accuracy of shape errors cannot be achieved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a center hole double-side grinding device, which solves the problems that no special center hole grinding device exists at present, workers mainly grind the holes by manually and repeatedly rotating a center drill bit with a standard diameter for several times in a whole circle, the balance and uniformity cannot be mastered by manual operation, and the effect of changing and improving the accuracy of shape errors cannot be achieved.
The center hole double-side grinding equipment comprises two dead center seats, a first six-edge hard alloy center, a stepless speed regulating motor, a driving plate, a second six-edge hard alloy center, two movable center seats, sliding blocks and a sliding rail, wherein the two sliding blocks are respectively arranged at the left end and the right end of the sliding rail, the dead center seats are arranged at the tops of the sliding blocks on one side, and the movable center seats are arranged at the tops of the sliding blocks on the other side;
the first six-edge hard alloy tip is mounted in the middle of the dead center seat, the second six-edge hard alloy tip is mounted in the middle of the movable center seat, the second six-edge hard alloy tip and the first six-edge hard alloy tip are arranged coaxially in a high-altitude mode, the driving plate is mounted outside the first six-edge hard alloy tip, and the stepless speed regulating motor is mounted at the top of the dead center seat and is in transmission connection with the driving plate.
Furthermore, taper holes corresponding to the second hexagonal cemented carbide tip and the first hexagonal cemented carbide tip are formed in the middle of the movable tip seat and the dead tip seat respectively, and the second hexagonal cemented carbide tip and the first hexagonal cemented carbide tip are installed in the two taper holes respectively.
Furthermore, the slide rail is a linear slide rail formed by two parallel guide rails, and the slide block is installed outside the slide rail and is connected with the slide rail in a sliding manner.
Furthermore, a driving wheel corresponding to the driving plate is installed at the output shaft of the stepless speed regulating motor, and a driving belt in transmission connection with the driving plate is wrapped outside the driving wheel.
Furthermore, the stepless speed regulating motor is provided with a power supply and a speed regulator which are matched with the stepless speed regulating motor, and the speed regulator can control the stepless speed regulating motor to regulate the speed at a constant speed within the rotating speed range of 0-550 r/min.
The invention has the beneficial effects that:
according to the invention, the second hexagonal hard alloy tip and the first hexagonal hard alloy tip are arranged coaxially at the same height, the first hexagonal hard alloy tip can be driven more accurately by matching with the stepless speed regulating motor, and the sliding rail and the sliding block which can enable the two tip seats to move more accurately are used, so that the center holes at the two ends of the shaft can be effectively ground by using the grinding tip, the roundness error of the center hole is greatly improved, the technical problems of poor roundness and coaxiality of the outer circle generated after the shaft is machined are further solved, a positioning precision reference is provided for precision machining of parts such as a rotating shaft, and the machining precision and efficiency of the parts are greatly improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. On the attachment
In the figure:
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a dead center seat; 2. a first six-edge cemented carbide tip; 3. a stepless speed regulating motor; 4. a dial; 5. a second six-edge cemented carbide tip; 6. a movable tip seat; 7. a slider; 8. a slide rail.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
Referring to fig. 1: centre bore double-sided lapping equipment, including dead center seat 1, first hexagonal carbide apex 2, stepless speed regulating motor 3, driver plate 4, second hexagonal carbide apex 5, live center seat 6, slider 7 and slide rail 8, slider 7 sets up two, and two sliders 7 set up respectively at the both ends about slide rail 8, slide rail 8 is the linear slide rail of constituteing by two parallel arrangement's guide rail, and slider 7 installs in the outside of slide rail 8 and with slide rail 8 sliding connection, dead center seat 1 installs the top at the slider 7 of one side, live center seat 6 installs the top at the slider 7 of opposite side.
The first six-edge hard alloy tip 2 is arranged in the middle of the dead center seat 1, the second six-edge hard alloy tip 5 is arranged in the middle of the movable center seat 6, the second six-edge hard alloy tip 5 and the first six-edge hard alloy tip 2 are arranged coaxially at the same height, the driving plate 4 is arranged outside the first six-edge hard alloy tip 2, and the stepless speed regulating motor 3 is arranged at the top of the dead center seat 1 and is in transmission connection with the driving plate 4.
The second hexagonal hard alloy tip 5 and the first hexagonal hard alloy tip 2 are made of Mohs 3 # precise hexagonal hard alloy grinding tips, the middle parts of the live center seat 6 and the dead center seat 1 are respectively provided with taper holes corresponding to the second hexagonal hard alloy tip 5 and the first hexagonal hard alloy tip 2, the second hexagonal hard alloy tip 5 and the first hexagonal hard alloy tip 2 are respectively arranged in the two taper holes, and the taper holes are set to be Mohs 3 # so that the Mohs 3 # precise hexagonal hard alloy grinding tips can be accurately arranged in the two Mohs 3 # taper holes to adjust the hole centers of the dead center seat 1 and the live center seat 6 in the same height, and firstly, the two parts are simultaneously clamped and processed, and the same process step ensures the consistent control of the distance size from the bottom surface of the support to the hole center in the same height; and secondly, if the machining size error is large, the base surface of the part with large distance size is ground or the gap of the base surface of the part with small distance size is adjusted by adopting an adjusting gasket, so that the centers of the grinding top holes at two ends are equal in height.
Further, the center hole grinding equipment is integrally placed on a working plane of the three-axis precision equipment, a precision-level (P-level) core rod with the length of about 150mm is placed between the two tips to be tightly propped, a dial indicator is used for aligning the parallelism error between a side bus of the core rod and the motion axis through a single moving axis linear motion pressure gauge of the three-axis precision equipment to be less than or equal to 0.01mm, the axial line of the centers of the holes at the two ends is determined to be a straight line, the parallelism error between an upper bus of the aligned core rod and the motion axis is determined to be less than or equal to 0.01mm, the isotacticity error between the central axes of the tip holes at the two ends is determined, and 16M 6 screws are used for connecting and fastening with screw holes on the sliding block 7, so that the geometric precision indexes of the same height and the same axis at the center positions of the holes at the two ends are achieved.
The output shaft of the stepless speed regulating motor 3 is provided with a driving wheel corresponding to the drive plate 4, the exterior of the driving wheel is wrapped with a driving belt in transmission connection with the drive plate 4, the stepless speed regulating motor 3 is provided with a power supply and a speed regulator which are matched with the stepless speed regulating motor 3, the speed regulator can control the stepless speed regulating motor 3 to regulate the speed at a constant speed within the rotating speed range of 0-550 r/min, the position of the center of the hole 2 of the first hexagonal hard alloy tip is provided with a precision rotating bearing, the drive plate 4 is pressed into the outer ring of the bearing through the hole to form a rotating body, the driving belt is in transmission connection with the rotating body, thus, after the stepless speed regulating motor 3 is electrified and started, can output power with uniform speed, drive the first hexagonal hard alloy tip 2 to rotate through the driving wheel, the driving belt and the rotating body, and this rotational speed can be adjusted according to its needs of grinding the axle material, guarantees the efficiency and the precision of grinding.
In conclusion, when the invention is used, the rotating shaft is arranged on the tips at two ends of the grinding equipment in a double-tip mode, the stepless speed regulating motor 3 provides a power source to enable the workpiece and the grinding tip to rotate relatively, the hard alloy tip is used for scraping the central hole, the hard alloy tip for grinding is provided with a conical edge belt, and the hard alloy tip for grinding is equivalent to a six-edge scraper; before grinding, a small amount of oil-blended chromium oxide grinding agent is added into the central hole, then the right-end live center is retracted manually, an external force is applied to a shaft by utilizing the forward axial expansion force of a spring in the tail center after the workpiece is arranged in the shaft to tightly push the workpiece, the workpiece is driven to rotate by a stepless variable frequency speed regulating motor, and ideal precision can be ground at the optimal speed; grinding the center hole of each workpiece for 2-3 minutes, uniformly coating red lead powder (a small amount) at 3 positions on the circumference of a standard 60-degree tip, putting the tip into the center hole, manually rotating for a circle, and observing that more than 80% of the red lead powder on the conical surface of the tip is uniformly covered by the tip visually, otherwise, continuously grinding.
After a central hole of a rotating shaft type part is ground and processed, the roundness error of the central hole reaches 2 micrometers, the surface finish reaches more than 0.8 micrometers, the shape accuracy is greatly improved, a positioning precise reference is provided for subsequent processing, the processing accuracy of the part reaches more than IT6 grade, the excircle roundness error of a grinding shaft is positioned and ground in a central hole double-tip mode on a high-accuracy numerical control universal excircle grinder by 2-3 micrometers, the coaxiality of shaft necks reaches within phi 0.012mm, the processing accuracy is greatly improved, the dynamic balance accuracy of a motor rotor is improved, the uniformity of air gaps between a stator and a rotor of the motor is improved, and meanwhile, the performance index of the motor is greatly improved; after grinding, the main size precision and the position precision of the product are greatly improved compared with those before grinding, and the qualification rate of the product is improved to more than 95% from the original 60-70%.
According to incomplete statistics, according to main economic indexes, the production process of a plurality of typical parts is sampled, 100 parts are sampled and checked, the main size precision and the position precision after grinding are greatly improved compared with those before grinding, and specific main data indexes are shown in table 1:
TABLE 1
The grinding equipment has wide application in machining processes such as turning, milling, grinding, numerical control machining and the like; the grinding center is used for effectively grinding the center holes at the two ends of the shaft, so that the roundness error of the center hole is greatly improved, the technical problems of poor excircle roundness and coaxiality and the like generated after the shaft is machined are further solved, a positioning precision reference is provided for precision machining of rotating shaft parts, and the machining precision and efficiency of parts are greatly improved.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (8)
1. Two-sided grinding equipment of centre bore, its characterized in that: the automatic numerical control lathe comprises a dead center seat (1), a first hexagonal hard alloy center (2), a stepless speed regulating motor (3), a driving plate (4), a second hexagonal hard alloy center (5), a live center seat (6), a sliding block (7) and a sliding rail (8);
the number of the sliding blocks (7) is two, the two sliding blocks (7) are respectively arranged at the left end and the right end of the sliding rail (8), the dead center seat (1) is arranged at the top of the sliding block (7) at one side, and the movable center seat (6) is arranged at the top of the sliding block (7) at the other side;
the first hexagonal hard alloy tip (2) is arranged in the middle of the dead tip seat (1), the second hexagonal hard alloy tip (5) is arranged in the middle of the movable tip seat (6), the second hexagonal hard alloy tip (5) and the first hexagonal hard alloy tip (2) are arranged coaxially at the same height, the driving plate (4) is arranged outside the first hexagonal hard alloy tip (2), and the stepless speed regulating motor (3) is arranged at the top of the dead tip seat (1) and is in transmission connection with the driving plate (4).
2. The central bore double-sided lapping apparatus of claim 1, wherein: the middle part of the movable tip seat (6) is provided with a taper hole corresponding to the second hexagonal hard alloy tip (5), and the second hexagonal hard alloy tip (5) is arranged in the corresponding taper hole.
3. The central bore double-sided lapping apparatus of claim 1, wherein: the middle part of the dead center seat (1) is provided with a taper hole of a first hexagonal hard alloy center (2), and the first hexagonal hard alloy centers (2) are respectively arranged in the corresponding taper holes.
4. The central bore double-sided lapping apparatus of claim 1, wherein: the slide rail (8) is a linear slide rail consisting of two parallel guide rails.
5. The central bore double-sided lapping apparatus of claim 4, wherein: the sliding block (7) is installed outside the sliding rail (8) and is connected with the sliding rail (8) in a sliding mode.
6. The central bore double-sided lapping apparatus of claim 1, wherein: and a driving wheel corresponding to the drive plate (4) is arranged at the output shaft of the stepless speed regulating motor (3), and a driving belt in transmission connection with the drive plate (4) is wrapped outside the driving wheel.
7. The central bore double-sided lapping apparatus of claim 1, wherein: the stepless speed regulating motor (3) is provided with a power supply and a speed regulator which are matched with the stepless speed regulating motor.
8. The central bore double-sided lapping apparatus of claim 7, wherein: the speed regulator controls the stepless speed regulating motor (3) to regulate the speed at a constant speed within the rotating speed range of 0-550 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461088.7A CN113134755A (en) | 2021-04-27 | 2021-04-27 | Center hole double-side grinding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461088.7A CN113134755A (en) | 2021-04-27 | 2021-04-27 | Center hole double-side grinding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113134755A true CN113134755A (en) | 2021-07-20 |
Family
ID=76816202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110461088.7A Pending CN113134755A (en) | 2021-04-27 | 2021-04-27 | Center hole double-side grinding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113134755A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2707432Y (en) * | 2004-07-09 | 2005-07-06 | 珠海天禾精密机械有限公司 | Precise cylindrical grinding device |
| CN202846280U (en) * | 2012-10-18 | 2013-04-03 | 新乡日升数控轴承装备股份有限公司 | Grinding device for grinding central holes |
| CN203599995U (en) * | 2013-10-29 | 2014-05-21 | 上海江南轧辊有限公司 | Center hole grinding thimble |
| CN206273493U (en) * | 2016-12-20 | 2017-06-23 | 凤城市时代龙增压器制造有限公司 | A kind of axle centre-hole lapping machine |
| CN107414617A (en) * | 2017-08-02 | 2017-12-01 | 合肥长源液压股份有限公司 | A kind of double end centre bore Ginding process and grinder |
| JP2018001319A (en) * | 2016-06-30 | 2018-01-11 | 株式会社ジェイテクト | Center and grinder |
| CN108115477A (en) * | 2018-01-08 | 2018-06-05 | 成都飞机工业（集团）有限责任公司 | Rotating shaft double end centre bore vertical lapping machine |
| CN109693175A (en) * | 2019-01-26 | 2019-04-30 | 特福隆（上海）科技有限公司 | A kind of rotor bore grinder |
| CN211841257U (en) * | 2020-02-26 | 2020-11-03 | 重庆百可精密机械有限公司 | Center hole grinding machine for precision grinding |
| CN212665624U (en) * | 2020-06-19 | 2021-03-09 | 山东亨格尔智能科技有限公司 | Shaft part center hole grinding device |
-
2021
- 2021-04-27 CN CN202110461088.7A patent/CN113134755A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2707432Y (en) * | 2004-07-09 | 2005-07-06 | 珠海天禾精密机械有限公司 | Precise cylindrical grinding device |
| CN202846280U (en) * | 2012-10-18 | 2013-04-03 | 新乡日升数控轴承装备股份有限公司 | Grinding device for grinding central holes |
| CN203599995U (en) * | 2013-10-29 | 2014-05-21 | 上海江南轧辊有限公司 | Center hole grinding thimble |
| JP2018001319A (en) * | 2016-06-30 | 2018-01-11 | 株式会社ジェイテクト | Center and grinder |
| CN206273493U (en) * | 2016-12-20 | 2017-06-23 | 凤城市时代龙增压器制造有限公司 | A kind of axle centre-hole lapping machine |
| CN107414617A (en) * | 2017-08-02 | 2017-12-01 | 合肥长源液压股份有限公司 | A kind of double end centre bore Ginding process and grinder |
| CN108115477A (en) * | 2018-01-08 | 2018-06-05 | 成都飞机工业（集团）有限责任公司 | Rotating shaft double end centre bore vertical lapping machine |
| CN109693175A (en) * | 2019-01-26 | 2019-04-30 | 特福隆（上海）科技有限公司 | A kind of rotor bore grinder |
| CN211841257U (en) * | 2020-02-26 | 2020-11-03 | 重庆百可精密机械有限公司 | Center hole grinding machine for precision grinding |
| CN212665624U (en) * | 2020-06-19 | 2021-03-09 | 山东亨格尔智能科技有限公司 | Shaft part center hole grinding device |
Non-Patent Citations (1)
| Title |
|---|
| 内蒙古机械工艺管理协会: "《实用机械技术问答1500题》", 28 February 1993, 内蒙古人民出版社 * |
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