EP1597020A1 - Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal tools - Google Patents
Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal toolsInfo
- Publication number
- EP1597020A1 EP1597020A1 EP04713525A EP04713525A EP1597020A1 EP 1597020 A1 EP1597020 A1 EP 1597020A1 EP 04713525 A EP04713525 A EP 04713525A EP 04713525 A EP04713525 A EP 04713525A EP 1597020 A1 EP1597020 A1 EP 1597020A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- round rod
- cylindrical
- workpiece headstock
- chuck
- 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.)
- Granted
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 204
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims abstract description 63
- 230000008569 process Effects 0.000 claims description 24
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000007858 starting material Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- 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
-
- 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
Definitions
- the invention relates to a method for cylindrical grinding in the production of tools made of hard metal on a cylindrical grinding machine which has a workpiece headstock and a tailstock, a circular rod made of hard metal being used as the starting material, according to the preamble of claim 1.
- round bars made of sintered hard metal are generally used. These rods then have a grinding allowance for the shank area and are cut to the required tool length, or the entire length of the starting bodies is brought to the required shank size by centerless grinding, the so-called centerless grinding, and then cut to length.
- the tool is then made from the solid from the individual cut backs of the bars by grinding.
- the carbide tools are gripped between hollow grains, tips or in a chuck. Grinding takes place either in the conventional grinding process or in the peel grinding process using diamond grinding wheels.
- the invention is therefore based on the object of improving the method known from the prior art in such a way that radial run-out errors are reliably avoided at comparable manufacturing costs.
- the round bar made of sintered hard metal, which may have a length of 300 to 400 mm, for example, is gradually pushed through the chuck of the workpiece headstock and clamped in place when a certain,
- the length of the end region of the round rod which corresponds to the length of the tool to be produced, protrudes from the workpiece headstock and faces the tailstock
- the final grinding end contour of the carbide tool to be produced is the contour of the finished tool that is to be produced by circular grinding, followed by cutting, spiral grooves and The like can be incorporated into the tool in subsequent processes.
- the end region protruding from the workpiece headstock can have a considerable length, depending on the tool, it is necessary to clamp it at its free end, which in turn requires a contour with high accuracy.
- at least one steady rest is first ground to the freely protruding end region. If the end region is then supported on one or more steadies by means of the at least one steady rest, the grinding of a first end cone to the end face of the round rod or its end region facing the tailstock can take place with the required accuracy. The front cone is then retracted into a quill on a quill of the tailstock. The end region is now clamped at both ends without having to release the first clamping in the workpiece headstock. The cylindrical grinding can now be carried out with the required accuracy on the already described cylindrical final contour.
- the individual tool which has been ground to this extent, is then tapped from the round rod; the chuck of the workpiece headstock that has remained tensioned until then is released and the round rod is pushed a little further towards the tailstock in the released chuck, with another end region of the round rod to be machined protruding from the workpiece headstock.
- the regulation of an "individual tool that has been finished to that extent” means something other than finish grinding in the sense of finishing as opposed to roughing. It also does not mean that the hard metal tool to be manufactured must already be ready for use. Rather, the term means Finishing here just that the resulting carbide tool in its first Finishing is grinded out as far as it is the task by cylindrical grinding, up to the desired final cylindrical grinding contour.
- the main advantages of the method according to the invention are that repeated clamping is avoided. This avoids reclamping errors and results in the best concentricity results and shape and position tolerances with regard to the shaft and cutting part.
- the costs for the individual workpiece are reduced because the tool that is created is machined from the raw to semi-finished part or finished part in a single machine.
- the throughput times are also reduced and it is possible to react very quickly to the order of a specific hard metal tool because the desired end regions can be tapped from the round rod in different lengths. In the end, the storage of semi-finished products can be reduced because production can be carried out flexibly and quickly.
- An advantageous further development of the method according to the invention consists in that when the end region of the round rod protruding from the workpiece headstock is cylindrical, the steady rest is moved back from the steady rest.
- the main purpose of the steady rest is to grind the end of the round rod protruding from the workpiece headstock facing the tailstock with the greatest possible accuracy.
- the tool contour can be ground in without additional support by steady rests. This simplifies the machining process and it is easy to achieve a perfect surface for the final grinding contour.
- a further advantageous embodiment of the method according to the invention consists in that the end region of the round rod protruding from the workpiece headstock is cut off from the remaining round rod after the cylindrical grinding by initially producing a second end cone with the rotating round rod on the end face of the workpiece headstock facing the workpiece headstock Tool is ground, then after moving back and axially displacing the grinding wheel with respect to the round rod, a separating cut leaving only a central connecting collar is made, and finally, after stopping the rotary movement of the round rod, the cutting process is completed by grinding away the connecting collar.
- the protruding end area of the round rod remains connected to the rest of the round rod until the last possible point in time, namely via the central connecting collar. This ensures that the end area is clamped on two sides without having to be reclamped until the end, and the machining accuracy is further improved without additional effort. Furthermore, grinding can be carried out on the rotating round rod for as long as possible, which is advantageous for the thermal load on the tool being created.
- the tailstock and / or the quill are then moved back from the finished tool that is being created, and this is held by a gripper unit.
- the gripper unit can remove and place the finished tool from the machine, which further increases the cost-effectiveness of the method.
- the known cylindrical grinding techniques can be used for the most important process of cylindrical grinding according to method step e) in claim 1. Cylindrical grinding to create the tool contour can be carried out with a narrow grinding wheel using the peeling method and / or with a wide grinding wheel using the pendulum grinding method.
- the method according to the invention can be carried out in an almost manual procedure as well as in a highly automated configuration.
- particular care must be taken to ensure that the last piece of bar to be machined is not clamped in the chuck of the workpiece headstock only with an insufficient axial extent.
- errors can occur that are caused by poor concentricity due to insufficient clamping length. Incomplete clamping can result in damage to the machine or even accidents if the necessary care is not taken.
- the remaining length of the round rod still available for pushing the round rod through the chuck of the workpiece headstock is checked at least during each clamping operation and a signal is given when the minimum remaining length is undershot and / or Cylindrical grinding machine is stopped.
- the invention also relates to a cylindrical grinding machine for grinding cylindrical starting bodies in the production of tools made of hard metal, in particular for carrying out the method according to one of claims 1 to 7.
- a machine according to the invention is provided with a machine bed, with a grinding table which can be moved on the machine bed, on which a workpiece headstock and a tailstock are arranged, with a chuck on the workpiece headstock, which axially pushes through a round rod serving as the starting material and clamps it enables in different axial positions, with at least one bezel arranged in the area between the workpiece headstock and the tailstock and one gripper unit arranged in the same area, an end region of the round rod pushed through the chuck of the workpiece headstock and clamped optionally by the tailstock and / or the bezel and / or the gripper unit can also be held, and with at least one grinding headstock with one or more grinding spindles, through which one or more different grinding wheels on the R and rod are adjustable.
- a grinding headstock which carries two grinding spindles and can be pivoted about a pivot axis which is directed perpendicular to a plane in which the common axis of the workpiece headstock, round rod and tailstock lies.
- the arrangement of a multiple grinding wheel in which two or more grinding wheels of different diameters, different widths and / or different outer contours are located directly next to one another on a common driven axis, is particularly preferred.
- the cylindrical grinding machine according to the invention can advantageously be provided with a CNC control, with which the entire grinding process is then largely automated.
- a sensor is assigned to the chuck of the workpiece headstock according to a further advantageous embodiment, by means of which the sensor is still available for pushing the round rod through the chuck The remaining length of the round bar is checked at least during each clamping process and a signal is given if the minimum remaining length is undershot and / or the cylindrical grinding machine is stopped.
- a tailstock with a quill carrying a hollow grain is also advantageously used.
- a hollow grain is particularly suitable for centering and securely receiving the front cone of a cylindrical part to be ground.
- FIG. 1 is a top view of a grinding machine for carrying out the method according to the invention.
- FIG. 2 shows details of the grinding machine according to FIG. 1 when grinding steady rest seats
- FIG. 3 is a representation corresponding to FIG. 2, the grinding of an end cone on the round rod being shown.
- Fig. 4 shows all the options for clamping the end region of the round rod which protrudes from the workpiece headstock.
- 5 additionally shows the gripper unit which is used when the end region is separated from the round bar.
- Figures 5a, 5b and 5c show the course of the cutting process after the cylindrical grinding of the tool being created.
- Fig. 6 shows schematically the transition to cylindrical grinding of the following end region on the round rod.
- Fig. 7 illustrates two different carbide tools in the state of their final grinding contour
- Fig. 1 is the simplified top view of a grinding machine for performing the method according to the invention.
- Reference number 1 shows the machine bed on which a grinding table 2 is located in the front area is put on.
- the grinding table 2 can be moved in the direction of the Z axis by means of a CNC control.
- a workpiece headstock 3 is placed on the left side, which receives a chuck 4, which is driven in rotation by means of an electric motor, not shown.
- the chuck 4 can be recognized at the front on the workpiece headstock 3. It is used to clamp the workpiece, in this case the round rod 6.
- the chuck 4 is designed such that the round rod 6 can be pushed through the chuck and clamped in desired axial positions by means of the clamping jaws 5 (FIG. 2).
- a tailstock 7 is mounted on the grinding table 2 and receives a quill 8 that can be moved in the axial direction.
- the quill movement is shown by arrow 9.
- the outer end of the quill 8 facing the workpiece headstock 3 is designed as hollow grains 10 and serves to receive the end of the round rod, which is ground as an end cone.
- the round rod 6, the workpiece headstock 3 and the chuck 4 as well as the quill 8 and the tailstock 7 form a common central axis 15, which can also be referred to as a common functional axis.
- the first grinding spindle 17 is equipped with a first grinding wheel 20 and the second grinding spindle 18 with a second grinding wheel 21.
- the grinding headstock 16 can be pivoted about a pivot axis 19 which is directed perpendicular to a plane in which the common axis 15 of Workpiece headstock 3, round rod 6 and tailstock 7 is located.
- the first grinding wheel 20 or the second grinding wheel 21 can be brought into the operative position by pivoting the grinding headstock 16 about the pivot axis 19.
- the grinding headstock 16 can also be moved linearly in the direction of the X axis.
- the process in the direction of the X axis is also CNC-controlled.
- the grinding spindles 17 and 18 contain integrated electric motors, as a result of which the grinding wheels 20, 21 are driven in rotation.
- the clamping jaws 5 of the chuck 4, through which the round rod 6 is clamped for the grinding process, can be seen.
- the round rod 6 can be pushed through the chuck 4 and clamped in a selectable axial position.
- an end region 23 of the round rod 6 protrudes from the chuck 4 or the workpiece headstock 3.
- the length of the end region 23 corresponds approximately to the length of the hard metal tool to be produced plus a specific clamping and machining length, cf. Fig. 5.
- FIG. 5 also schematically shows a gripper unit 22, the clamping parts 24 and 25 of which can grip and hold the end region 23 of the round rod from the outside.
- the movement of the clamping parts 24, 25 is indicated by arrows 26, 27.
- FIG. 2 shows how the first grinding spindle 17 of the grinding headstock 16 has moved into the active position.
- the first grinding wheel 20 is shown enlarged here. It has a base body 28 of greater axial extension and a narrow region 29 protruding radially therefrom.
- the narrow area 29 carries the grinding surface 30 of a cylindrical contour.
- the grinding wheel 20 is designed, for example, as a diamond grinding wheel with a height of the grinding surface of approximately 5 mm.
- the second grinding spindle 18 is brought into the operative position with the second grinding wheel 21.
- the second grinding wheel 22 has a first single wheel and a second single wheel 32.
- the second grinding wheel can be designed as a multiple grinding wheel.
- the two individual disks 31 and 32 can also be parts of a common grinding body with a single base body. With 33 and 34, the abrasive pads of the two individual disks 31 and 32 are designated.
- the two individual disks 31 and 32 have a different axial thickness and are both equipped with conical grinding surfaces of oppositely directed inclination.
- the grinding process to be carried out on the grinding machine according to FIGS. 1 to 6 takes place in the following manner:
- the starting material is the already mentioned round rod 6 made of a sintered hard metal.
- a round rod of this type which can have a length of 300 to 400 mm, for example, is pushed through the chuck 4 of the workpiece headstock 3 until an end region 23 (FIG. 2) of the desired length protrudes from the chuck 4. In this position the jaws 5 are moved to the round rod 6 so that it is clamped.
- the first grinding spindle 17 of the grinding headstock 16 is then brought into the operative position.
- a first steady rest 35 is then ground to the end region 23 of the round rod 6 by means of the first grinding wheel 20, which is located on the first grinding spindle 17 and is driven in rotation and has a cylindrical grinding surface.
- the first steady rest 11 is then moved in the direction of arrow 13 against the first steady rest 35, so that the end region 23 is securely supported in further grinding operations.
- a second steady rest seat 36 or further steady rest seats can also be ground on the end region 23 of the round rod 6.
- the second bezel 12 is provided, for example.
- the steady rest seat 36, which is arranged closer to the chuck 4, and then the steady rest seat 35 are then ground first.
- both bezels 11 and 12 are employed on the associated bezel seats 35, 36.
- the end region 23 is thus securely supported.
- the second grinding spindle 18 is brought into operative position with the second grinding wheel 21.
- the first individual disc 31 is then used to grind a first end cone 37 to the end face of the round rod 6 or its end region 23 facing the tailstock 7.
- the first end cone 37 is dimensioned such that it fits into the hollow grains 10 of the quill 8, which is arranged in the tailstock 7 so as to be displaceable in the direction of the arrow 9.
- FIG. 4 shows a state in which the steadies 11 and 12 are also applied to the end region 23 during this sub-process. However, this is by no means mandatory. The use of the steadies 11 and 12 is essential, especially when grinding the first end cone 37. The following operations can also be carried out in such a way that the steadies are then moved back.
- the process of cylindrical grinding shown in FIG. 4 is in no way limited to merely obtaining a continuously cylindrical contour of the desired surface quality. Rather, the entire cylindrical grinding final contour of the finished carbide tool is to be calibrated in this process step. This means that depending on the end contour of the tool, even at this stage of the method, in which the end region 23 is still on the round rod 6, partial regions with gradations of cylindrical, conical or spherical contour can be ground out. All contours that can be achieved by cylindrical grinding are conceivable. This can also be done in such a way that set grinding wheels with certain contours are used. However, this is not shown in FIG. 4. Examples of such cylindrical grinding end contours are shown in FIG. 7.
- finish grinding does not mean finish grinding in the sense of finishing as opposed to roughing, but that final stage that can be achieved for the resulting tool by cylindrical grinding in the worst case. Afterwards, cutting, spiral grooves and the like must be ground in separate processes For the time being, however, it is necessary to separate the finished-ground tool from the round rod 6.
- the second grinding wheel 21 is then moved back from the end region 23 of the round rod 6. There is an axial mutual offset of the round rod 6 and the second single disc 32. The offset is approximately the thickness the second single disk 32. Then the single disk 32 is again fed against the end region 23 of the round rod 6 and this time brings about a separating cut 40. The process is continued until the connection between the remaining length of the round rod 6 and its end region 23 is only in one narrow connecting collar 41 exists. Up to this point in time, the end region 23 of the round rod 6 was clamped at both ends and driven to rotate (FIG. 5b).
- the round rod is then moved out of the chuck 4 again a little so that the next end region 23 can be machined (FIG. 6).
- FIG. 7 shows two different hard metal tools in one stage, as is to be achieved with the method according to the invention and the cylindrical grinding machine according to the invention.
- the original cylindrical contour of the round rod 6 is shown in dash-dot lines, so that it can be seen how the desired final grinding end contour is achieved solely by circular grinding came about.
- the implementation of the method is not limited to the measures shown in FIGS. 1 to 5. It is even possible to get by with a single grinding wheel for all operations if it is possible to feed this grinding wheel to the round bar in the oblique direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10308292A DE10308292B4 (en) | 2003-02-26 | 2003-02-26 | Method of cylindrical grinding in the manufacture of tools made of hard metal and cylindrical grinding machine for grinding cylindrical starting bodies in the manufacture of tools made of hard metal |
DE10308292 | 2003-02-26 | ||
PCT/EP2004/001760 WO2004076124A1 (en) | 2003-02-26 | 2004-02-23 | Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal tools |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1597020A1 true EP1597020A1 (en) | 2005-11-23 |
EP1597020B1 EP1597020B1 (en) | 2006-06-14 |
Family
ID=32863904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04713525A Expired - Lifetime EP1597020B1 (en) | 2003-02-26 | 2004-02-23 | Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal tools |
Country Status (11)
Country | Link |
---|---|
US (2) | US7393261B2 (en) |
EP (1) | EP1597020B1 (en) |
JP (1) | JP4579900B2 (en) |
KR (1) | KR101002610B1 (en) |
CN (1) | CN100532015C (en) |
AT (1) | ATE329728T1 (en) |
AU (1) | AU2004215687B2 (en) |
DE (2) | DE10308292B4 (en) |
ES (1) | ES2267053T3 (en) |
RU (1) | RU2312002C2 (en) |
WO (1) | WO2004076124A1 (en) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006007055B4 (en) * | 2006-02-15 | 2008-07-17 | Bsh Holice A.S. | Method for grinding rod-shaped workpieces, grinding machine for carrying out the method and grinding cell in twin arrangement |
GB2438025A (en) * | 2006-05-11 | 2007-11-14 | Yorkshire Machine Tools Ltd | Machining apparatus |
DE102007009843B4 (en) * | 2007-02-28 | 2010-04-08 | Erwin Junker Maschinenfabrik Gmbh | Method for grinding a machine component and grinding machine for carrying out the method |
DE102008010245B4 (en) * | 2008-02-20 | 2011-02-10 | Emag Holding Gmbh | Method for grinding wavy workpieces |
EP2163341B1 (en) * | 2008-09-12 | 2019-07-10 | Jtekt Corporation | Machine tool with rest apparatus and machining method thereof |
DE102008058814B4 (en) | 2008-11-24 | 2012-09-06 | Emag Holding Gmbh | Method for cylindrical grinding of workpieces |
DE102009024209B4 (en) * | 2009-06-08 | 2012-12-06 | Erwin Junker Maschinenfabrik Gmbh | METHOD AND DEVICE FOR MULTILAYER GRINDING OF WORKPIECES |
US8579680B2 (en) * | 2009-06-22 | 2013-11-12 | Dan Schellenberg | Centerless grinding machine |
JP5428740B2 (en) * | 2009-10-19 | 2014-02-26 | 株式会社ジェイテクト | Compound grinding machine |
DE102009059897B4 (en) * | 2009-12-21 | 2013-11-14 | Erwin Junker Maschinenfabrik Gmbh | Method for cylindrical grinding of long, thin round rods and cylindrical grinding machine for carrying out the method |
JP5505099B2 (en) * | 2010-06-04 | 2014-05-28 | 株式会社ジェイテクト | Grinding method with compound grinder |
IT1403602B1 (en) * | 2010-12-22 | 2013-10-31 | Tenova Spa | METHOD FOR THE POSITIONING OF OPERATIONAL CYLINDERS ON A GRINDING MACHINE AND GRINDING MACHINE THAT ACTIVATES THIS METHOD |
CN102101252A (en) * | 2010-12-24 | 2011-06-22 | 张良羽 | Device and method for processing valve core |
CN102267071B (en) * | 2011-08-01 | 2013-07-10 | 浙江瑞亨精密工具有限公司 | Cylindrical grinding machine |
US8882566B2 (en) * | 2012-05-15 | 2014-11-11 | Nittan Valve Co., Ltd. | Method of machining opposite ends of rod members |
CN103158050A (en) * | 2013-03-25 | 2013-06-19 | 靖江市建肯高速电机有限公司 | Grinding method for motorized spindle end cover |
DE102013214226B4 (en) | 2013-07-19 | 2018-06-21 | Erwin Junker Grinding Technology A.S. | METHOD FOR CENTERLESS GRINDING OF SHAFT PARTS, PARTICULARLY TUBES FOR BUILT-IN CAM WAVES, AND PROCESSED GRINDING WHEEL AND PULLEY PAD |
CN103659659A (en) * | 2013-11-28 | 2014-03-26 | 无锡市航鹄科技有限公司 | Supporting and positioning tool for marking of large-size bars |
CN104385134A (en) * | 2014-11-15 | 2015-03-04 | 江阴吉爱倍万达精工有限公司 | Workpiece positioning device of thin wall miniature bearing inner hole grinding machine |
CN104354105A (en) * | 2014-11-15 | 2015-02-18 | 江阴吉爱倍万达精工有限公司 | Compression mechanism for thin-wall miniature bearing inner hole grinding machine workpiece positioning device |
JP2016101664A (en) * | 2014-11-27 | 2016-06-02 | 三星ダイヤモンド工業株式会社 | Method for manufacturing substrate processing tool and substrate processing tool |
CN108527050B (en) * | 2018-04-16 | 2020-12-04 | 吴烁 | Rod end polishing device |
CN109176181A (en) * | 2018-10-11 | 2019-01-11 | 湖州费莲青湖笔有限公司 | A kind of writing brush penholder polishing structure and its application method |
CN109202493A (en) * | 2018-11-26 | 2019-01-15 | 泸州远程工程机械有限公司 | The adjustable tubular object extruding clamp assemblies of structure |
CN109834584B (en) * | 2019-03-18 | 2021-01-29 | 内蒙古中环光伏材料有限公司 | Processing method of multistage reducing seed crystal and multistage reducing seed crystal |
CN110977668B (en) * | 2019-12-25 | 2024-05-24 | 南通德鑫数控机床有限公司 | Full-automatic one shot forming camshaft blank lathe of numerical control |
CN111496614B (en) * | 2020-05-25 | 2022-07-22 | 青岛张氏力拓精密机械有限公司 | Metal rod surface polishing equipment based on worm gear and worm |
CN111761500A (en) * | 2020-05-30 | 2020-10-13 | 董良印 | Polishing machine for surface of steel pipe and using method of polishing machine |
CN112388479A (en) * | 2020-11-12 | 2021-02-23 | 宣荣康 | Multifunctional lathe |
CN114453995B (en) * | 2022-03-15 | 2024-06-07 | 安徽信息工程学院 | Polishing method of telescopic polishing device |
CN116833858B (en) * | 2023-08-31 | 2024-01-02 | 综欣工业装备(潍坊)有限公司 | Horizontal lathe work piece processing fixing device |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1904568A (en) * | 1929-05-14 | 1933-04-18 | Gen Electric | Disk-like cutting tool |
US3610075A (en) * | 1968-07-01 | 1971-10-05 | Illinois Tool Works | Method of producing a plurality of cutting tools from a single fluted bar |
JPS54295A (en) * | 1977-06-02 | 1979-01-05 | Komatsu Ltd | Machine tool |
US4651472A (en) * | 1984-09-03 | 1987-03-24 | Schaudt Maschinenbau Gmbh | Method of and machine for grinding rotary workpieces |
DE3618349A1 (en) * | 1986-05-31 | 1987-12-03 | Index Werke Kg Hahn & Tessky | METHOD AND DEVICE FOR CHECKING A TAKE-OFF PROCESS |
JPS6434648A (en) * | 1987-07-31 | 1989-02-06 | Toyoda Machine Works Ltd | Grinding device with feed gear for shaft-shaped work |
JP2930462B2 (en) * | 1991-12-26 | 1999-08-03 | 豊田工機株式会社 | Grinding method |
JP2861715B2 (en) * | 1993-02-18 | 1999-02-24 | 信越半導体株式会社 | Anti-rotation device for ingot cylindrical grinding machine |
JP2788707B2 (en) * | 1993-12-21 | 1998-08-20 | 本田技研工業株式会社 | Grinder |
US5527210A (en) * | 1994-05-18 | 1996-06-18 | Woodward Governor Company | Dynamic steady rest |
JPH0890408A (en) * | 1994-09-27 | 1996-04-09 | Toyoda Mach Works Ltd | Grinding method |
JP3517984B2 (en) * | 1994-10-11 | 2004-04-12 | 豊田工機株式会社 | Numerically controlled grinding machine |
JPH08141890A (en) * | 1994-11-15 | 1996-06-04 | Shimomura Tokushu Seiko Kk | Polishing machine and straight corrective polishing and sizing cutting device for metal round bar material |
US5885199A (en) * | 1996-02-06 | 1999-03-23 | Shao; Wenyuan | Compact machining center for multifunction |
DE19625520C1 (en) * | 1996-06-26 | 1997-06-12 | Reishauer Ag | Precision finishing process for spur wheel gear clamped on workpiece spindle |
EP0875809A3 (en) * | 1997-04-28 | 2000-09-06 | Seiko Seiki Kabushiki Kaisha | CAD/CAM apparatus and machining apparatus |
JPH1128662A (en) * | 1997-07-08 | 1999-02-02 | Hitachi Ltd | Working method for tubular ceramic molding |
DE19756610A1 (en) * | 1997-12-18 | 1999-07-01 | Junker Erwin Maschf Gmbh | Method and device for grinding workpieces with time-parallel fine machining |
JPH11188570A (en) * | 1997-12-24 | 1999-07-13 | Toyoda Mach Works Ltd | Device and method for machining using cool air cooling |
DE19806608A1 (en) * | 1998-02-18 | 1999-09-02 | M B A Gmbh | Workpiece processing with grinding tool |
JP3781236B2 (en) * | 1998-03-27 | 2006-05-31 | 株式会社ジェイテクト | Grinding machine and grinding method of grinding wheel position |
DE19844243A1 (en) * | 1998-09-26 | 2000-03-30 | Schuette Alfred H Gmbh & Co Kg | Universal grinding machine for grinding tools, having several workpiece carriers, each with its own carriage |
JP2000141216A (en) * | 1998-11-02 | 2000-05-23 | Nippei Toyama Corp | Crankshaft grinding machine |
DE19857359B4 (en) * | 1998-12-11 | 2005-09-15 | Erwin Junker Maschinenfabrik Gmbh | Method and device for machining workpieces with thin-walled areas having centric deviations in shape |
DE19919893A1 (en) * | 1999-04-30 | 2000-11-09 | Junker Erwin Maschf Gmbh | Pre- and finish grinding a crankshaft in one setup |
DE19962796A1 (en) * | 1999-12-23 | 2001-07-05 | Junker Erwin Maschf Gmbh | Method and device for grinding grooved tools |
JP4051872B2 (en) * | 2000-09-29 | 2008-02-27 | 株式会社ジェイテクト | Measuring method of processing part and processing method |
DE10145674B4 (en) * | 2001-05-17 | 2005-12-15 | Chiron-Werke Gmbh & Co Kg | Machine tool to work rod-shaped workpieces has an initial workpiece holder, for machining in one position, and a second rotating or swing holder to move the workpiece into a further working position |
DE10144644B4 (en) * | 2001-09-11 | 2006-07-13 | Bsh Holice A.S. | Method and device for grinding centric bearing points of crankshafts |
JP2003175401A (en) * | 2001-12-10 | 2003-06-24 | Yamazaki Mazak Corp | Machine tool with bar feeder |
US6878035B2 (en) * | 2002-03-22 | 2005-04-12 | Darex Corporation | Tool sharpener |
-
2003
- 2003-02-26 DE DE10308292A patent/DE10308292B4/en not_active Expired - Lifetime
-
2004
- 2004-02-23 CN CNB2004800050880A patent/CN100532015C/en not_active Expired - Lifetime
- 2004-02-23 ES ES04713525T patent/ES2267053T3/en not_active Expired - Lifetime
- 2004-02-23 EP EP04713525A patent/EP1597020B1/en not_active Expired - Lifetime
- 2004-02-23 AT AT04713525T patent/ATE329728T1/en not_active IP Right Cessation
- 2004-02-23 US US10/547,104 patent/US7393261B2/en not_active Expired - Lifetime
- 2004-02-23 KR KR1020057015951A patent/KR101002610B1/en active IP Right Grant
- 2004-02-23 RU RU2005130018/02A patent/RU2312002C2/en active
- 2004-02-23 WO PCT/EP2004/001760 patent/WO2004076124A1/en active IP Right Grant
- 2004-02-23 DE DE502004000773T patent/DE502004000773D1/en not_active Expired - Lifetime
- 2004-02-23 AU AU2004215687A patent/AU2004215687B2/en not_active Expired
- 2004-02-23 JP JP2006501925A patent/JP4579900B2/en not_active Expired - Lifetime
-
2008
- 2008-02-13 US US12/069,856 patent/US7708623B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004076124A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE329728T1 (en) | 2006-07-15 |
RU2312002C2 (en) | 2007-12-10 |
JP2006519108A (en) | 2006-08-24 |
DE502004000773D1 (en) | 2006-07-27 |
AU2004215687B2 (en) | 2008-12-11 |
US20080139091A1 (en) | 2008-06-12 |
JP4579900B2 (en) | 2010-11-10 |
US7393261B2 (en) | 2008-07-01 |
US20060121827A1 (en) | 2006-06-08 |
AU2004215687A1 (en) | 2004-09-10 |
KR20050107464A (en) | 2005-11-11 |
KR101002610B1 (en) | 2010-12-20 |
CN1753757A (en) | 2006-03-29 |
DE10308292A1 (en) | 2004-09-16 |
CN100532015C (en) | 2009-08-26 |
WO2004076124A1 (en) | 2004-09-10 |
EP1597020B1 (en) | 2006-06-14 |
RU2005130018A (en) | 2006-02-10 |
US7708623B2 (en) | 2010-05-04 |
ES2267053T3 (en) | 2007-03-01 |
DE10308292B4 (en) | 2007-08-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1597020B1 (en) | Cylindrical grinding method for producing hard metal tools and cylindrical grinding machine for grinding cylindrical starting bodies during the production of hard metal tools | |
DE10144644B4 (en) | Method and device for grinding centric bearing points of crankshafts | |
DE102007009843B4 (en) | Method for grinding a machine component and grinding machine for carrying out the method | |
EP3116683B1 (en) | Method and device for finishing large crankshafts | |
DE102009059897B4 (en) | Method for cylindrical grinding of long, thin round rods and cylindrical grinding machine for carrying out the method | |
EP2167277B1 (en) | Grinding center and method for simultaneous grinding of a plurality of bearings and end-side surfaces of crankshafts | |
DE102008009124B4 (en) | Method for grinding rod-shaped workpieces and grinding machine | |
DE19921785B4 (en) | Method for grinding convex running surfaces and outer diameters on shafts with at least one disk-shaped shaft section and grinding machine for carrying out the method | |
EP0483064A1 (en) | Machining centre for grinding workpieces with complex formed surfaces | |
WO2017157698A1 (en) | Method for the complete grinding of workpieces in the form of shafts having cylindrical and profiled sections | |
EP1955808B1 (en) | Grinding machine for grinding workpieces between points, grinding without points and grinding method | |
EP0273950B1 (en) | process and device for producing turned parts from rods | |
DE19804762B4 (en) | Method and device for grinding the free, chip and / or breast surface of teeth of a sawing tool | |
DE10011454A1 (en) | Grinding device for precision engineering has one swivel support with two spindles supporting internal and external finishing grinding stones to move up against workpiece | |
DE4120003C2 (en) | ||
CH670788A5 (en) | ||
DE10113301A1 (en) | Process for grinding a milling cutter having a toothed profile comprises forming an edge clearance by engaging a grinding disk in the direction of the sides of the teeth | |
DE19809353C2 (en) | Method for double-sided grinding of lenses and device for carrying out the method | |
DE102021123380B3 (en) | Device and method for machining rotating workpieces | |
EP1475185A1 (en) | Method and apparatus for abrasively working surfaces of revolution |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20050803 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
DAX | Request for extension of the european patent (deleted) | ||
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060614 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060614 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060614 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060614 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060614 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060614 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20060614 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 502004000773 Country of ref document: DE Date of ref document: 20060727 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060914 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20060915 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061114 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070228 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2267053 Country of ref document: ES Kind code of ref document: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20070315 |
|
BERE | Be: lapsed |
Owner name: ERWIN JUNKER MASCHINENFABRIK G.M.B.H. Effective date: 20070228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060915 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070223 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060914 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060614 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080229 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080229 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070223 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060614 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060614 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20061215 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230216 Year of fee payment: 20 Ref country code: ES Payment date: 20230317 Year of fee payment: 20 Ref country code: CZ Payment date: 20230221 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20230216 Year of fee payment: 20 Ref country code: IT Payment date: 20230217 Year of fee payment: 20 Ref country code: GB Payment date: 20230217 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230427 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 502004000773 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20240301 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20240222 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20240224 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20240224 Ref country code: CZ Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20240223 Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20240222 |