CN113373282A - Laser quenching process for main shaft of heavy-duty press - Google Patents
Laser quenching process for main shaft of heavy-duty press Download PDFInfo
- Publication number
- CN113373282A CN113373282A CN202110589719.3A CN202110589719A CN113373282A CN 113373282 A CN113373282 A CN 113373282A CN 202110589719 A CN202110589719 A CN 202110589719A CN 113373282 A CN113373282 A CN 113373282A
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- China
- Prior art keywords
- heavy
- press
- main shaft
- laser
- quenching
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to a laser quenching process for a heavy-duty press spindle, which comprises the steps of clamping the heavy-duty press spindle by a left clamping jaw and a right clamping jaw, supporting by a lifting bracket, and removing the left clamping jaw and the right clamping jaw during laser scanning quenching, so that the heavy-duty press spindle is in a free state during laser scanning quenching, and deformation caused by three-point non-coaxial or no space release after the heavy-duty press spindle is subjected to thermal expansion can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of laser quenching processes, in particular to a laser quenching process for a main shaft of a heavy-duty press.
Background
The spindle applied to the heavy-duty press machine is required to have higher wear resistance at a transmission part, and because the shaft diameter of the spindle is designed to be different in diameter size and eccentric angle, if a common heat treatment process is adopted, larger deformation is generated due to inconsistent stress points, and higher risks are provided for the overall precision control of the spindle and the dimensional stability after stress release; and the diameters of all gears of the main shaft are not consistent, the difference of the deviation from the axis is not consistent, and deformation is generated due to stress unbalance after the conventional quenching process.
The laser quenching process is a process of acting high-power laser beams on the surface of a metal material, enabling the temperature of a laser acting area to rise rapidly and heat to be above a phase transformation point to form an austenite structure, and then enabling the austenite structure to rapidly generate phase transformation by utilizing the self-cooling effect of the material to form a martensite quenching layer. Compared with other heat treatment processes, the laser quenching process has the advantages of smaller deformation, smaller heat affected zone and more stable and uniform martensite structure. The shaft diameter can effectively improve the impact resistance, the fatigue resistance and the wear resistance by adopting a laser quenching process.
The laser quenching process suitable for the main shaft of the heavy-duty press is a technical problem which needs to be solved urgently by a person skilled in the art.
Disclosure of Invention
The invention aims to solve the technical problem of providing a laser quenching process for a heavy-duty press main shaft, which can avoid deformation.
In order to solve the technical problem, the laser quenching process for the heavy-duty press spindle comprises the following steps:
A. clamping the heavy press main shaft by using a horizontal lathe so that two ends of the heavy press main shaft are clamped by corresponding clamping jaws;
B. adjusting a lifting bracket at the bottom of the horizontal lathe to the lower side of the middle part of the heavy-duty press spindle, and lifting the lifting bracket to enable the lifting bracket to jack up the heavy-duty press spindle; removing the clamping jaws at the two ends, so that the heavy press main shaft is only supported by the lifting bracket and is in a free state;
C. adjusting the parameters of the laser device to power of 2.8-3.2kw, scanning speed of 280-;
D. according to the order of the shaft diameter, the small shaft diameter part is firstly subjected to laser scanning quenching, then the large shaft diameter part is subjected to laser scanning quenching, and when the same shaft diameter part is subjected to laser scanning quenching, the middle part is firstly processed, and then the two end parts are processed.
Further, the horizontal lathe comprises a left vertical frame and a right vertical frame, wherein a left clamping jaw is arranged on the left vertical frame, and a right clamping jaw is arranged on the right vertical frame and used for clamping two ends of a main shaft of the heavy-duty press.
Furthermore, the top of lift bracket sets up the arc jack catch for support heavy press main shaft.
The invention has the technical effects that: compared with the prior art, the laser quenching process for the heavy press spindle has the advantages that the heavy press spindle is clamped by the left clamping jaw and the right clamping jaw, is supported by the lifting bracket, and is removed during laser scanning quenching, so that the heavy press spindle is in a free state during laser scanning quenching, and deformation caused by three-point non-coaxial or no space release after the heavy press spindle is subjected to thermal expansion can be effectively avoided; the arc-shaped clamping jaws are matched with the main shaft of the heavy-duty press in shape, so that the heavy-duty press is convenient to support.
Drawings
The invention is described in further detail below with reference to the drawings of the specification:
FIG. 1 is a schematic illustration of a support for a heavy press spindle of the present invention prior to quenching;
FIG. 2 is a schematic illustration of the support of the heavy press spindle of the present invention during quenching;
in the figure:
the device comprises a horizontal machine tool 1, a left vertical frame 11, a right vertical frame 12, a left clamping jaw 13, a right clamping jaw 14, a lifting bracket 15 and a heavy-duty press spindle 2.
Detailed Description
Example 1
A laser quenching process for a main shaft of a heavy-duty press comprises the following steps:
A. clamping a heavy press main shaft 2 by using a horizontal lathe 1, so that two ends of the heavy press main shaft 1 are clamped by corresponding left clamping jaws 13 and right clamping jaws 14;
B. adjusting a lifting bracket 15 at the bottom of the horizontal lathe 1 to the lower side of the middle part of the heavy press spindle 2, and lifting the lifting bracket 15 to enable the lifting bracket 15 to jack up the heavy press spindle 2; the left clamping jaw 13 and the right clamping jaw 14 at the two ends are removed, so that the heavy press spindle 2 is only supported by the lifting bracket 15, and the heavy press spindle 2 is in a free state;
C. adjusting the parameters of the laser device to power of 2.8-3.2kw, scanning speed of 280-;
D. according to the order of the shaft diameter, the small shaft diameter part is firstly subjected to laser scanning quenching, then the large shaft diameter part is subjected to laser scanning quenching, and when the same shaft diameter part is subjected to laser scanning quenching, the middle part is firstly processed, and then the two end parts are processed.
As shown in fig. 1 to 2, the horizontal lathe 1 includes a left vertical frame 11 and a right vertical frame 12, wherein the left vertical frame 11 is provided with a left jaw 13, and the right vertical frame 12 is provided with a right jaw 14 for clamping both ends of the main shaft 2 of the heavy press.
The top end of the lifting bracket 15 is provided with an arc-shaped clamping jaw for supporting the heavy-duty press spindle 2.
The left clamping jaw 13 and the right clamping jaw 14 are removed during laser scanning quenching, so that the heavy press machine spindle 2 is in a free state during laser scanning quenching, and deformation caused by three-point non-coaxial or no space release after the heavy press machine spindle 2 is subjected to thermal expansion can be effectively avoided.
It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the invention are intended to be covered by the scope of the present invention.
Claims (3)
1. The laser quenching process for the main shaft of the heavy-duty press is characterized by comprising the following steps of:
A. clamping the heavy press main shaft by using a horizontal lathe so that two ends of the heavy press main shaft are clamped by corresponding clamping jaws;
B. adjusting a lifting bracket at the bottom of the horizontal lathe to the lower side of the middle part of the heavy-duty press spindle, and lifting the lifting bracket to enable the lifting bracket to jack up the heavy-duty press spindle; removing the clamping jaws at the two ends, so that the heavy press main shaft is only supported by the lifting bracket and is in a free state;
C. adjusting the parameters of the laser device to power of 2.8-3.2kw, scanning speed of 280-;
D. according to the order of the shaft diameter, the small shaft diameter part is firstly subjected to laser scanning quenching, then the large shaft diameter part is subjected to laser scanning quenching, and when the same shaft diameter part is subjected to laser scanning quenching, the middle part is firstly processed, and then the two end parts are processed.
2. The laser quenching process of the spindle of the heavy-duty press as claimed in claim 1, wherein the horizontal lathe comprises a left vertical frame and a right vertical frame, wherein a left jaw is arranged on the left vertical frame, and a right jaw is arranged on the right vertical frame.
3. The laser quenching process of the heavy-duty press spindle according to claim 1 or 2, wherein an arc-shaped claw is arranged at the top end of the lifting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110589719.3A CN113373282A (en) | 2021-05-28 | 2021-05-28 | Laser quenching process for main shaft of heavy-duty press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110589719.3A CN113373282A (en) | 2021-05-28 | 2021-05-28 | Laser quenching process for main shaft of heavy-duty press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113373282A true CN113373282A (en) | 2021-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110589719.3A Pending CN113373282A (en) | 2021-05-28 | 2021-05-28 | Laser quenching process for main shaft of heavy-duty press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113373282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833358A (en) * | 2022-04-06 | 2022-08-02 | 中信重工机械股份有限公司 | Method for finely machining large reducing slender shaft through horizontal lathe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013136802A (en) * | 2011-12-28 | 2013-07-11 | Fuji Heavy Ind Ltd | Quench hardening method and quench hardening apparatus |
| CN206375954U (en) * | 2016-12-31 | 2017-08-04 | 河南中原辊轴有限公司 | Horizontal intermediate-frequency quenching machine tool |
| CN108220575A (en) * | 2017-12-30 | 2018-06-29 | 中钢集团邢台机械轧辊有限公司 | A kind of laser reinforcing process of shaft-like workpiece |
| CN209669291U (en) * | 2019-01-28 | 2019-11-22 | 山推工程机械股份有限公司 | A kind of large-tonnage axis integral quenching lathe |
-
2021
- 2021-05-28 CN CN202110589719.3A patent/CN113373282A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013136802A (en) * | 2011-12-28 | 2013-07-11 | Fuji Heavy Ind Ltd | Quench hardening method and quench hardening apparatus |
| CN206375954U (en) * | 2016-12-31 | 2017-08-04 | 河南中原辊轴有限公司 | Horizontal intermediate-frequency quenching machine tool |
| CN108220575A (en) * | 2017-12-30 | 2018-06-29 | 中钢集团邢台机械轧辊有限公司 | A kind of laser reinforcing process of shaft-like workpiece |
| CN209669291U (en) * | 2019-01-28 | 2019-11-22 | 山推工程机械股份有限公司 | A kind of large-tonnage axis integral quenching lathe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833358A (en) * | 2022-04-06 | 2022-08-02 | 中信重工机械股份有限公司 | Method for finely machining large reducing slender shaft through horizontal lathe |
| CN114833358B (en) * | 2022-04-06 | 2023-11-14 | 中信重工机械股份有限公司 | Method for carrying out finish machining on long and thin shaft with large variable diameter through horizontal lathe |
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