CN110640404A - Method for repairing fixed waist-round long slotted hole of slotting tool rest - Google Patents
Method for repairing fixed waist-round long slotted hole of slotting tool rest Download PDFInfo
- Publication number
- CN110640404A CN110640404A CN201910904480.7A CN201910904480A CN110640404A CN 110640404 A CN110640404 A CN 110640404A CN 201910904480 A CN201910904480 A CN 201910904480A CN 110640404 A CN110640404 A CN 110640404A
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- Prior art keywords
- slotted
- slotted hole
- wear
- resistant steel
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention relates to the technical field of slot hole repair, and discloses a method for repairing a fixed waist-round long slot hole of a slotting cutter rest. Because the inner slotted hole of the existing slotting cutter rest is easy to be damaged or even broken in the long-term use process, the wear-resistant steel plates are arranged on the left and right sides of the damaged part of the inner slotted hole of the slotting cutter rest during repair, so that the damaged part of the slotted hole is positioned on one side of the wear-resistant steel plate, then the damaged part is welded, filled and repaired, after the filled materials are solidified, the wear-resistant steel plate is detached and the materials are ground, so that the damaged part of the slotted hole is repaired more firmly and is more suitable for the original slotted hole, the damaged part of the slotted hole is restored to a perfect state, and the work of a subsequent machine tool is powerfully guaranteed.
Description
Technical Field
The invention relates to the technical field of slot hole repair, in particular to a method for repairing a fixed waist-round long slot hole of a slotting cutter rest.
Background
The numerical control tool rest is the most common auxiliary device of the numerical control lathe, and can enable the numerical control lathe to finish various and even all machining processes in one-time clamping of a workpiece so as to shorten the auxiliary time of machining and reduce errors caused by multiple times of installation of the workpiece in the machining process, thereby improving the machining efficiency and the machining precision of the machine tool. In other large-scale equipment, such as emergency diesel engines, turbines and other bodies of nuclear power plants, the shells are usually cast parts, and once cracks are found in the cast parts during the operation of the equipment, the defects are difficult to treat. In the prior art, the conventional means for repairing cracks is repair welding, but the weldability is obviously extremely poor due to higher carbon content and poor toughness of cast iron materials, the welding success rate is low even if a machine body with crack defects is specially welded, and in the process of attempting repair welding, cracks can be expanded due to thermal stress, and even parts are scrapped frequently. Therefore, we propose a method for repairing the fixed waist-round long slotted hole of the slotted tool rest to solve the above problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for repairing a fixed waist-round long slotted hole of a slotting cutter rest.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for repairing a fixed waist-round long slotted hole of a slotting cutter rest comprises the following steps: s1, selecting materials, selecting three groups of slotting tool rests with damaged slotted holes, and measuring the slotted holes in the slotting tool rests to ensure that the slotted holes are equal in size and volume; s2, cleaning the slotted holes, and cleaning the inner walls of the slotted holes by using a cleaning brush to ensure that no impurities are attached to the insides of the slotted holes; s3, welding, namely, welding and filling the damaged part of the slotted hole in the slotting cutter rest, wherein the filled part is not higher than the horizontal plane at the top of the slotting cutter rest, arranging a wear-resistant steel plate above the filled groove, wherein the periphery of the wear-resistant steel plate is movably connected with the inside of the slotted hole by fillet welding, the wear-resistant steel plate is provided with another slotted hole, and the slotted hole is welded with the slotting cutter rest; s4, filling and repairing, namely filling welding materials into one side of the wear-resistant steel plate, waiting for 1.5-3h, and removing the wear-resistant steel plate after the welding materials are solidified; s5, repairing, namely polishing redundant welding materials by using a polishing device to enable the redundant welding materials to be positioned at the same horizontal plane with the inner wall of the slotted hole, cleaning the polished welding materials, and smearing lubricating materials on the inner wall of the slotted hole; and S6, testing, namely, mounting the repaired slotted holes of the slotted knife rest on a machine tool, and testing the strength and toughness of the three groups of repaired slotted holes to finish repairing.
Further, in step S1, the material of the selected slotting tool rest and the size of the slot are the same, and the damaged degree of the slot is similar.
Further, in the step S3, wear-resistant steel plates are disposed on both left and right sides of the damaged portion of the slot hole in the slotting tool rest, and the insides of the wear-resistant steel plates are movably connected with the slot hole of the slotting tool rest through the opened holes.
Further, in the step S4, the filled welding material is in a liquid state, and an isolation layer is disposed on an outer wall of the wear-resistant steel plate on a side close to the damaged portion of the slot.
Further, in step S5, the damaged portion after polishing is located at the same level as the inner wall of the slot.
Further, in step S6, the three groups of repaired slotting tool holders are tested simultaneously, and the types and models of the machines used in the test are completely the same.
The invention has the beneficial effects that: the conventional slotted hole repairing method only uses a welding tool to simply weld the damaged part, the stability of the welded part is not strong, and the welded part has depressions and bulges, so that the normal use of the slotting cutter frame is influenced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below.
A method for repairing a fixed waist-round long slotted hole of a slotting cutter rest comprises the following steps: s1, selecting materials, selecting three groups of slotting tool rests with damaged slotted holes, measuring the slotted holes at the slotting tool rests to ensure that the slotted holes have equal size and volume, wherein the selected slotting tool rests are made of the same material and the same size as the slotted holes, and the damaged degrees of the slotted holes are similar; s2, cleaning the slotted holes, and cleaning the inner walls of the slotted holes by using a cleaning brush to ensure that no impurities are attached to the insides of the slotted holes; s3, welding, namely, welding and filling the damaged part of the slotted hole in the slotting cutter rest, wherein the filled part is not higher than the horizontal plane at the top of the slotting cutter rest, a wear-resistant steel plate is arranged above the filled groove, the periphery of the wear-resistant steel plate is movably connected with the inside of the slotted hole by fillet welding, the wear-resistant steel plate is provided with another slotted hole, the slotted hole is welded with the slotting cutter rest, the wear-resistant steel plates are arranged on the left and the right of the damaged part of the slotted hole in the slotting cutter rest, and the inside of each wear-resistant steel plate is movably connected with the slotted hole of the slotting cutter rest through; s4, filling and repairing, namely filling welding materials into one side of the wear-resistant steel plate, waiting for 1.5-3 hours, solidifying the welding materials to remove the wear-resistant steel plate, wherein the filled welding materials are liquid, and an isolation layer is arranged on the outer wall of one side, close to the damaged part of the slotted hole, of the wear-resistant steel plate; s5, repairing, namely polishing redundant welding materials by using a polishing device to enable the redundant welding materials to be positioned at the same horizontal plane with the inner wall of the slotted hole, cleaning the polished welding materials, coating a lubricating material on the inner wall of the slotted hole, and positioning the polished damaged part and the inner wall of the slotted hole at the same horizontal plane; and S6, testing, namely, mounting the repaired slotted holes of the slotting tool rests on a machine tool, testing the strength and toughness of the three groups of repaired slotted holes, and simultaneously testing the three groups of repaired slotting tool rests, wherein the types and the types of the machine tools used for testing are completely the same, so that the repairing is completed.
The conventional slotted hole repairing method only uses a welding tool to simply weld the damaged part, the stability of the welded part is not strong, and the welded part has depressions and bulges, so that the normal use of the slotting cutter frame is influenced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A method for repairing a fixed waist-round long slotted hole of a slotting cutter rest is characterized by comprising the following steps:
s1, selecting materials, selecting three groups of slotting tool rests with damaged slotted holes, and measuring the slotted holes in the slotting tool rests to ensure that the slotted holes are equal in size and volume;
s2, cleaning the slotted holes, and cleaning the inner walls of the slotted holes by using a cleaning brush to ensure that no impurities are attached to the insides of the slotted holes;
s3, welding, namely, welding and filling the damaged part of the slotted hole in the slotting cutter rest, wherein the filled part is not higher than the horizontal plane at the top of the slotting cutter rest, arranging a wear-resistant steel plate above the filled groove, wherein the periphery of the wear-resistant steel plate is movably connected with the inside of the slotted hole by fillet welding, the wear-resistant steel plate is provided with another slotted hole, and the slotted hole is welded with the slotting cutter rest;
s4, filling and repairing, namely filling welding materials into one side of the wear-resistant steel plate, waiting for 1.5-3h, and removing the wear-resistant steel plate after the welding materials are solidified;
s5, repairing, namely polishing redundant welding materials by using a polishing device to enable the redundant welding materials to be positioned at the same horizontal plane with the inner wall of the slotted hole, cleaning the polished welding materials, and smearing lubricating materials on the inner wall of the slotted hole;
and S6, testing, namely, mounting the repaired slotted holes of the slotted knife rest on a machine tool, and testing the strength and toughness of the three groups of repaired slotted holes to finish repairing.
2. The method for repairing a slotted hole fixed by a slotted knife rest according to claim 1, wherein in the step S1, the slotted knife rest is made of the same material and has the same size as the slotted hole, and the slotted hole is damaged to a similar degree.
3. The method for repairing a fixed kidney-shaped long slot hole of a slotting tool rest according to claim 1, wherein in the step S3, wear-resistant steel plates are respectively arranged on the left and right sides of the damaged position of the slot hole in the slotting tool rest, and the inner part of each wear-resistant steel plate is movably connected with the slot hole of the slotting tool rest through the opened hole.
4. The method as claimed in claim 1, wherein in step S4, the welding material is in liquid state, and the outer wall of the wear-resistant steel plate near the damaged slot is provided with an isolation layer.
5. The method as claimed in claim 1, wherein in step S5, the damaged portion after grinding is located at the same level as the inner wall of the slot.
6. The method for repairing a fixed kidney-round long slot hole of a slotting tool rest according to claim 1, wherein in the step S6, three groups of repaired slotting tool rests are tested simultaneously, and the type and model of a machine tool used for the test are completely the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904480.7A CN110640404A (en) | 2019-09-24 | 2019-09-24 | Method for repairing fixed waist-round long slotted hole of slotting tool rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904480.7A CN110640404A (en) | 2019-09-24 | 2019-09-24 | Method for repairing fixed waist-round long slotted hole of slotting tool rest |
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| Publication Number | Publication Date |
|---|---|
| CN110640404A true CN110640404A (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910904480.7A Pending CN110640404A (en) | 2019-09-24 | 2019-09-24 | Method for repairing fixed waist-round long slotted hole of slotting tool rest |
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| CN (1) | CN110640404A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245885A (en) * | 2007-02-13 | 2008-08-20 | 北京安科管道工程科技有限公司 | Mend filling and renovation reinforced method for bearing equipment wall surface |
| CN101850478A (en) * | 2010-06-21 | 2010-10-06 | 西安理工大学 | Welding material for rapidly welding and repairing defects of large-scale grey iron casting and repairing method thereof |
| EP2311597A1 (en) * | 2009-10-15 | 2011-04-20 | Siemens Aktiengesellschaft | Method of and device for welding workpieces from heat resistant superalloys with control of some welding parameters for reaching a particular cooling rate |
| CN104039482A (en) * | 2011-12-15 | 2014-09-10 | 维斯塔斯风力***集团公司 | A method of repairing defects in cast iron workpieces, and a method of connecting cast iron workpieces |
| CN104162761A (en) * | 2014-08-18 | 2014-11-26 | 青岛海之冠汽车配件制造有限公司 | Flywheel crack repair method |
| CN105408055A (en) * | 2013-08-01 | 2016-03-16 | 西门子能源公司 | Building and repair of hollow components |
| CN105458611A (en) * | 2015-12-11 | 2016-04-06 | 山东能源重型装备制造集团有限责任公司 | Repair method for scraper conveyor middle pan |
| CN106078076A (en) * | 2016-07-26 | 2016-11-09 | 盘锦聚生源实业有限公司 | A kind of inefficacy hydraulic cylinder body bore area reproducing method |
| CN106947932A (en) * | 2017-04-18 | 2017-07-14 | 东莞华晶粉末冶金有限公司 | A kind of restorative procedure and prosthetic appliance of zirconia ceramics plate surface sand hole |
| CN108406222A (en) * | 2018-03-23 | 2018-08-17 | 江苏大学 | A kind of restorative procedure of big aspect ratio micro deep-hole inner wall microcrack |
-
2019
- 2019-09-24 CN CN201910904480.7A patent/CN110640404A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245885A (en) * | 2007-02-13 | 2008-08-20 | 北京安科管道工程科技有限公司 | Mend filling and renovation reinforced method for bearing equipment wall surface |
| EP2311597A1 (en) * | 2009-10-15 | 2011-04-20 | Siemens Aktiengesellschaft | Method of and device for welding workpieces from heat resistant superalloys with control of some welding parameters for reaching a particular cooling rate |
| CN101850478A (en) * | 2010-06-21 | 2010-10-06 | 西安理工大学 | Welding material for rapidly welding and repairing defects of large-scale grey iron casting and repairing method thereof |
| CN104039482A (en) * | 2011-12-15 | 2014-09-10 | 维斯塔斯风力***集团公司 | A method of repairing defects in cast iron workpieces, and a method of connecting cast iron workpieces |
| CN105408055A (en) * | 2013-08-01 | 2016-03-16 | 西门子能源公司 | Building and repair of hollow components |
| CN104162761A (en) * | 2014-08-18 | 2014-11-26 | 青岛海之冠汽车配件制造有限公司 | Flywheel crack repair method |
| CN105458611A (en) * | 2015-12-11 | 2016-04-06 | 山东能源重型装备制造集团有限责任公司 | Repair method for scraper conveyor middle pan |
| CN106078076A (en) * | 2016-07-26 | 2016-11-09 | 盘锦聚生源实业有限公司 | A kind of inefficacy hydraulic cylinder body bore area reproducing method |
| CN106947932A (en) * | 2017-04-18 | 2017-07-14 | 东莞华晶粉末冶金有限公司 | A kind of restorative procedure and prosthetic appliance of zirconia ceramics plate surface sand hole |
| CN108406222A (en) * | 2018-03-23 | 2018-08-17 | 江苏大学 | A kind of restorative procedure of big aspect ratio micro deep-hole inner wall microcrack |
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Application publication date: 20200103 |