CN100595293C - Work-piece heating arrangement for high temperature shot-peening - Google Patents
Work-piece heating arrangement for high temperature shot-peening Download PDFInfo
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- CN100595293C CN100595293C CN200810035541A CN200810035541A CN100595293C CN 100595293 C CN100595293 C CN 100595293C CN 200810035541 A CN200810035541 A CN 200810035541A CN 200810035541 A CN200810035541 A CN 200810035541A CN 100595293 C CN100595293 C CN 100595293C
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Abstract
The invention provides a work-piece heating device of high temperature shot-blasting, which comprises a concave type casing, an electric heating system, a rotation shaft and a shafts specimen holder,wherein the electric heating system is arranged in the inner portion of the concave type casing, the rotation shaft is sleeved in the concave casing through a bearing and is used to fix the shafts specimen holder which is arranged in the groove of the concave casing. The device has simple and compact structure, can conveniently hold or unload the specimen holder, can effectively guarantee the concentricity and parallelism with the rotation shaft, and completely prevent the contamination of iron holder for magnesium alloy specimen. The electric heating system can realize the high temperature ofdifferent temperature values through choosing a constant temperature bimetal leaf controller with different motion temperature, and the largest temperature can reach 300 DEG C. Simultaneously the specimen can be rotated with uniform speed by means of the driving of an external rotating motor, and can receive well-distributed heat in the concave type casing which has excellent heat insulation, thereby making the specimen obtain even and stable high temperature shot-blasting effect.
Description
Technical field
The present invention relates to the device in a kind of heat treatment technics field, specifically, relating to is a kind of Work-piece heating arrangement of high temperature shot-peening.
Background technology
The repeated stress failure of some metallic substance such as magnesium alloy is often from surface, upper layer or surperficial lower floor, especially at the stress concentration position, therefore, improve the supporting capacity at stress concentration position, the upper layer of strengthening certain depth is to overcome the fatigue property that weak link just can significantly improve this metallic substance.Based on this, people have explored the method for multiple raising metallic substance fatigue property, and surface deformation strengthening is exactly one of them, and its principle of work is to utilize mechanical energy to make workpiece surface produce viscous deformation, causes surface deformation strengthening.Wherein, shot-peening is widely used in the ferrous materials as a kind of surface deformation strengthening method, and has obtained good effect.Up to now, also considerably less about the shot peening strengthening research of magnesium alloy, this is main relevant with the crystalline structure of magnesium alloy, and most magnesium alloy have the close-packed hexagonal crystalline structure, and symmetry is low, and the room temperature slip system is few, the cold machine-shaping difficulty.When being lower than 498K, the viscous deformation of polycrystalline magnesium only limit to basal plane 0001}＜1120〉slippage and 1012}＜1011〉twin, during magnesium alloy deformation owing to have only three how much slip systems and two independent slip systems, { 0001} produces local transgranular fracture, thereby makes the cold deformation of magnesium alloy only limit to medium distortion along twinned region when compression (especially) or along the basal plane of big crystal grain when deflection is big.And when being higher than 498K, the additional slip plane (1011) of magnesium alloy and (1121) start, and help distortion, and plasticity is improved, and are easy to the processing that is shaped.Therefore, handle if under hot conditions magnesium alloy is carried out shot peening strengthening, promptly high temperature shot-peening is expected more effectively to improve its fatigue property.
But when magnesium alloy axle class standard sample being carried out the high temperature shot-peening processing, also there is following problem: one, clamp axis class sample how? two, how axle class sample is carried out even heating? three, the impurity of introducing during high temperature shot-peening is handled can reduce the corrosive nature of handling the back magnesium alloy, how to prevent or reduce the pollution of impurity magnesium alloy sample?
Find through literature search prior art, the Chinese invention patent application number is 200510053894.1, publication number is CN1668143A, this patent provides a kind of Work-piece heating arrangement, this device adopts high-frequency induction, can be to multiple size, and the workpiece of shape, heat according to a plurality of successive modes, versatility is higher.A class sample and rotatable anchor clamps but this device is not installed can't make magnesium alloy obtain even shot-peening, and this apparatus structure complexity, and volume is big.
Summary of the invention
The present invention is directed to above-mentioned deficiency of the prior art, a kind of Work-piece heating arrangement of high temperature shot-peening is provided, design Heating temperature scope is 0～300 ℃, this apparatus structure is simple, the heating efficiency height, clamp axis class standard sample easily effectively prevents the pollution of impurity such as iron to specimen surface, is particularly suitable for that light metal such as magnesium alloy are carried out high temperature shot-peening and handles.
The present invention is achieved through the following technical solutions, the present invention includes: matrix housing, electric heating system, rotation axis and axle class specimen holder, and wherein, electric heating system places the matrix enclosure interior, is used to produce heat; Rotation axis by bearing housing in the matrix housing, and stationary shaft class specimen holder; Axle class specimen holder places the groove of matrix housing, is used for clamp axis class sample, and can drive a class sample rotation; The matrix housing is used for the heat that electric heating system produces is transmitted to sample, and prevents thermal losses.
Described matrix housing, comprise heat-insulating shield, bearing, adiabatic rubber and metal sheet, annexation is: heat-insulating shield is the groove shape and is positioned at whole matrix lower part of frame, metal sheet is the groove shape and is positioned at the top of whole matrix housing, bearing is embedded in the side of matrix housing, and adiabatic rubber is pasted on the outside of whole matrix housing.
Described electric heating system comprises an electric heating element and Controlling System.Described an electric heating element places between the heat-insulating shield and metal sheet of matrix housing, and an electric heating element is connected with Controlling System.
Described Controlling System, comprise piezoelectric ceramic piece, piezoelectric ceramic piece divider resistance, constant temperature bimetallic strip temperature regulator, light emitting diode, light emitting diode divider resistance and supply lead, annexation is: piezoelectric ceramic piece and piezoelectric ceramic piece divider resistance series connection back are in parallel with constant temperature bimetallic strip temperature regulator, piezoelectric ceramic piece after the parallel connection, piezoelectric ceramic piece divider resistance and constant temperature bimetallic strip temperature regulator are connected with an electric heating element again, be connected on the supply lead two ends after light emitting diode and the series connection of light emitting diode divider resistance.
Described rotation axis comprises two sections, and first section is used for linking to each other with the shot-peening body, and second section links to each other with axle class specimen holder, and second section is provided with tip and groove.
Described axle class specimen holder, comprise sample, index chuck, the tip tightening screw, the tack dog screw, the standard sample that makes zero, sleeve pipe chuck and plastic casing, annexation is: the tip tightening screw connects the groove of second section of rotation axis and the screw on the sleeve pipe chuck, the sleeve pipe chuck is fixed on the rotation axis, the hole that the tip of rotation axis and standard make zero on sample or the sample contacts, the make zero tapering of sample end face or sample end face of the tapering of tip and standard is identical, and the tack dog screw is by the screw of sleeve pipe chuck front end, make zero sample or sample of standard is fixed in the sleeve pipe chuck the other end, sleeve pipe chuck and rotation axis all place plastic casing inside, index chuck concave surface and sleeve pipe chuck outside surface are close to, and the centre hole of index chuck is aimed at the tack dog screw.
The described standard sample that makes zero, its diameter is identical with the interior diameter of sleeve pipe chuck.
The most advanced and sophisticated tapering of described tip tightening screw should be identical with the groove tapering on second section of the rotation axis.
The end that described sleeve pipe chuck links to each other with rotation axis is provided with six screws, and six tip tightening screws are fixed on the clamp sleeve head on the rotation axis by six screws.The sleeve pipe chuck the other end is provided with three screws, and three tack dog screw are fixed on make zero sample or sample of standard in the class specimen holder by three screws.
Described index chuck, its concave curvature is identical with sleeve pipe chuck outer diameter curvature radius, when clamping sample, is positioned on three screws of sleeve pipe chuck, accurately the screw-in depth of control tack dog screw is identical with the screw-in depth of controlling three tack dog screw.
When the present invention works, form the matrix housing with heat-insulating shield, bearing, adiabatic rubber and metal sheet earlier, and some an electric heating element are placed between the heat-insulating shield and metal sheet of matrix housing, an electric heating element links to each other with the Controlling System of outside; Then the matrix housing is connected on the rotation axis by bearing; With the tip tightening screw clamp sleeve head is fixed on the rotation axis, the standard of the putting into sample that makes zero makes it contact with rotation axis, rotate three tack dog screw to contact standards sample that makes zero, the taking-up standard sample that makes zero, putting into sample to be processed makes the hole of its end face closely contact with rotation axis, utilize index chuck and screw cutter rotation tack dog screw to clamping sample to be processed, keep the direction of three tack dog screw rotation consistent simultaneously, wrap up whole anchor clamps with plastic casing at last and rotation axis partly prevents to pollute with angle.
Compared with prior art, the present invention has following beneficial effect: the axle class specimen holder among the present invention is simple and compact for structure, clamping or unloading sample are convenient, and can effectively guarantee and the concentricity and the parallelism of rotation axis, prevent the pollution of irony anchor clamps to magnesium alloy sample fully; Simultaneously, as if the drive by the external rotating motor, sample has been realized at the uniform velocity rotation, and obtains thermally equivalent in the matrix housing preferably in heat insulating ability, can make sample obtain even, stable high temperature shot-peening effect.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention;
Fig. 2 is a matrix housing partial schematic diagram of the present invention;
Fig. 3 is an electric heating system of the present invention;
Fig. 4 is an axle class specimen holder partial schematic diagram of the present invention;
Fig. 5 is an index chuck synoptic diagram of the present invention.
In above-mentioned accompanying drawing, 1-heat-insulating shield, 2-bearing, the adiabatic rubber of 3-, the 4-metal sheet, 5-rotation axis, 6-axle class specimen holder, 7-sample, the 8-index chuck, 9-tip tightening screw, 10-tack dog screw, the 11-standard sample that makes zero, 12-sleeve pipe chuck, 13-plastic casing, 14-an electric heating element, 15-Controlling System, the 16-piezoelectric ceramic piece, 17-piezoelectric ceramic piece divider resistance, 18-constant temperature bimetallic strip temperature regulator, the 19-light emitting diode, 20-light emitting diode divider resistance, 21-supply lead.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: matrix housing, electric heating system, rotation axis 5 and axle class specimen holder 6, and wherein, electric heating system places the matrix enclosure interior, is used to produce heat; Rotation axis 5 is enclosed within the matrix housing by bearing 2, and stationary shaft class specimen holder 6; Axle class specimen holder 6 places the groove of matrix housing, is used for clamp axis class sample 7, and can drive a class sample 7 rotations; The matrix housing is used for the heat that electric heating system produces is transmitted to sample 7, and prevents thermal losses.
As illustrated in fig. 1 and 2, described matrix housing, comprise heat-insulating shield 1, bearing 2, adiabatic rubber 3 and metal sheet 4, annexation is: heat-insulating shield 1 is the groove shape and is positioned at whole matrix lower part of frame, metal sheet 4 is the groove shape and is positioned at the top of whole matrix housing, bearing 2 is embedded in the side of matrix housing, and adiabatic rubber 3 is pasted on the outside of whole matrix housing.
Described metal sheet 4 can be made up of the material that steel or iron material or aluminium or stainless steel etc. have a high thermal conductivity coefficient, wherein steel heat conduction the best.
Described electric heating system comprises an electric heating element 14 and Controlling System 15.Described an electric heating element 14 places between the heat-insulating shield 1 and metal sheet 4 of matrix housing, and selects corresponding bar number for use according to the size of matrix housing, and the shell of an electric heating element 14 is selected for use copper or stainless material.
Described Controlling System 15, comprise piezoelectric ceramic piece 16, piezoelectric ceramic piece divider resistance 17, constant temperature bimetallic strip temperature regulator 18, light emitting diode 19, light emitting diode divider resistance 20 and supply lead 21, annexation is: piezoelectric ceramic piece 16 and piezoelectric ceramic piece divider resistance 17 series connection backs are in parallel with constant temperature bimetallic strip temperature regulator 18, with the piezoelectric ceramic piece after the parallel connection 16, piezoelectric ceramic piece divider resistance 17 and constant temperature bimetallic strip temperature regulator 18 are connected with an electric heating element 14 again, are connected on supply lead 21 two ends after light emitting diode 19 and 20 series connection of light emitting diode divider resistance.
Described constant temperature bimetallic strip temperature regulator 18 is some, and model is selected the KSD Kick type for use, and the contact is a closed type, and operating temperature is elected 0～300 ℃ as and do not waited, and selects the constant temperature bimetallic strip temperature regulator 18 of different operating temperatures for use according to test requirements document.
When described Controlling System 15 is worked, because of constant temperature bimetallic strip temperature regulator 18 is in conducting state, piezoelectric ceramic piece 16 two ends do not have voltage of alternating current, do not send prompt tone, when temperature is elevated to test when temperature required, the 18 contact automatic openings of constant temperature bimetallic strip temperature regulator, this moment, there was suitable voltage of alternating current at piezoelectric ceramic piece 16 two ends, make it to send prompt tone, so that testing crew is in time tested.
Described rotation axis 5 comprises two sections, and first section is used for linking to each other with the shot-peening body, and second section links to each other with axle class specimen holder 6, and second section is provided with tip and groove.
Described axle class specimen holder 6, comprise sample 7, index chuck 8, tip tightening screw 9, tack dog screw 10, the standard sample 11 that makes zero, sleeve pipe chuck 12 and plastic casing 13, annexation is: tip tightening screw 9 connects the groove of 5 second sections of rotation axiss and the screw on the sleeve pipe chuck 12, sleeve pipe chuck 12 is fixed on the rotation axis 5, the hole that the tip of rotation axis 5 and standard make zero on sample 11 or the sample 7 contacts, the make zero tapering of sample 11 end faces or sample 7 end faces of the tapering of tip and standard is identical, and tack dog screw 10 is by the screw of sleeve pipe chuck 12 front ends, make zero sample 11 or sample 7 of standard is fixed in sleeve pipe chuck 12 the other ends, sleeve pipe chuck 12 all places plastic casing 13 inside with rotation axis 5, index chuck 8 concave surfaces and sleeve pipe chuck 12 outside surfaces are close to, and the centre hole of index chuck 8 is aimed at tack dog screw 10.
The described standard sample 11 that makes zero, its diameter is identical with the interior diameter of sleeve pipe chuck 12.
The most advanced and sophisticated tapering of described tip tightening screw 9 should be identical with the groove tapering on 5 second sections of the rotation axiss.
The end that described sleeve pipe chuck 12 links to each other with rotation axis 5 is provided with six screws, and six tip tightening screws 9 are fixed on clamp sleeve head 12 on the rotation axis 5 by six screws.Sleeve pipe chuck 12 the other ends are provided with three screws, and three tack dog screw 10 are fixed on 6 li of class specimen holders to make zero sample 11 or sample 7 of standard by three screws.
Described index chuck 8, its concave curvature is identical with sleeve pipe chuck 12 outer diameter curvature radiuses, when clamping sample 7, is positioned on three screws of sleeve pipe chuck 12, accurately the screw-in depth of control tack dog screw 10 is identical with the screw-in depth of controlling three tack dog screw 10.
During present embodiment work, form the matrix housing with heat-insulating shield 1, bearing 2, adiabatic rubber 3 and metal sheet 4 earlier, and some an electric heating element 14 are placed between the heat-insulating shield 1 and metal sheet 4 of matrix housing, an electric heating element 14 links to each other with the Controlling System 15 of outside; Then the matrix housing is connected on the rotation axis 5 by bearing 2; With tip tightening screw 9 clamp sleeve head 12 is fixed on the rotation axis 5, the standard of the putting into sample 11 that makes zero makes it contact with rotation axis 5, rotate three tack dog screw 10 to contact standards sample 11 that makes zero, the taking-up standard sample 11 that makes zero, putting into sample to be processed 7 makes the hole of its end face closely contact with rotation axis 5, utilize index chuck 8 and screw cutter rotation tack dog screw 10 to clamping sample 7 to be processed, keep the direction of three tack dog screw, 10 rotations consistent simultaneously, prevent to pollute with plastic casing 13 whole anchor clamps of parcel and rotation axis 5 parts at last with angle.
Compared with prior art, present embodiment has following beneficial effect: the axle class specimen holder 6 in the present embodiment is simple and compact for structure, clamping or unloading sample 7 convenience, and can effectively guarantee and the concentricity and the parallelism of rotation axis 5, of the pollution of irony anchor clamps prevented fully to magnesium alloy sample 7; Electric heating system can be realized the high temperature of differing temps value by the constant temperature bimetallic strip temperature regulator 18 of selecting different operating temperatures, top temperature can reach 300 ℃, and can remind testing crew in time to test by sending prompt tone, simultaneously, if drive by the external rotating motor, sample 7 has been realized at the uniform velocity rotation, and obtains thermally equivalent in the matrix housing preferably in heat insulating ability, can make sample 7 obtain even, stable high temperature shot-peening effect.
Claims (9)
1, a kind of Work-piece heating arrangement of high temperature shot-peening, it is characterized in that, comprise matrix housing, electric heating system, rotation axis and axle class specimen holder, wherein, electric heating system places the matrix enclosure interior, rotation axis by bearing housing in the matrix housing, and stationary shaft class specimen holder, axle class specimen holder places the groove of matrix housing, is used for clamp axis class sample, and driving the rotation of axle class sample, the matrix housing is used for the heat that electric heating system produces is transmitted to sample;
Described matrix housing, comprise heat-insulating shield, bearing, adiabatic rubber and metal sheet, annexation is: heat-insulating shield is the groove shape and is positioned at whole matrix lower part of frame, metal sheet is the groove shape and is positioned at the top of whole matrix housing, bearing is embedded in the side of matrix housing, and adiabatic rubber is pasted on the outside of whole matrix housing.
2, the Work-piece heating arrangement of high temperature shot-peening according to claim 1, it is characterized in that described electric heating system comprises an electric heating element and Controlling System, described an electric heating element places between the heat-insulating shield and metal sheet of matrix housing, and an electric heating element is connected with Controlling System.
3, the Work-piece heating arrangement of high temperature shot-peening according to claim 2, it is characterized in that, described Controlling System, comprise piezoelectric ceramic piece, the piezoelectric ceramic piece divider resistance, constant temperature bimetallic strip temperature regulator, light emitting diode, light emitting diode divider resistance and supply lead, annexation is: piezoelectric ceramic piece and piezoelectric ceramic piece divider resistance series connection back are in parallel with constant temperature bimetallic strip temperature regulator, with the piezoelectric ceramic piece after the parallel connection, piezoelectric ceramic piece divider resistance and constant temperature bimetallic strip temperature regulator are connected with an electric heating element again, are connected on the supply lead two ends after light emitting diode and the series connection of light emitting diode divider resistance.
4, the Work-piece heating arrangement of high temperature shot-peening according to claim 1 is characterized in that, described rotation axis comprises two sections, and first section is used for linking to each other with the shot-peening body, and second section links to each other with axle class specimen holder, and second section is provided with tip and groove.
5, the Work-piece heating arrangement of high temperature shot-peening according to claim 1, it is characterized in that, described axle class specimen holder, comprise sample, index chuck, the tip tightening screw, the tack dog screw, the standard sample that makes zero, sleeve pipe chuck and plastic casing, annexation is: the tip tightening screw connects the groove of second section of rotation axis and the screw on the sleeve pipe chuck, the sleeve pipe chuck is fixed on the rotation axis, the hole that the tip of rotation axis and standard make zero on sample or the sample contacts, the make zero tapering of sample end face or sample end face of the tapering of tip and standard is identical, and the tack dog screw is by the screw of sleeve pipe chuck front end, make zero sample or sample of standard is fixed in the sleeve pipe chuck the other end, sleeve pipe chuck and rotation axis all place plastic casing inside, index chuck concave surface and sleeve pipe chuck outside surface are close to, and the centre hole of index chuck is aimed at the tack dog screw.
6, the Work-piece heating arrangement of high temperature shot-peening according to claim 5 is characterized in that, the described standard sample that makes zero, and its diameter is identical with the interior diameter of sleeve pipe chuck.
7, the Work-piece heating arrangement of high temperature shot-peening according to claim 5 is characterized in that, the most advanced and sophisticated tapering of described tip tightening screw should be identical with the groove tapering on second section of the rotation axis.
8, the Work-piece heating arrangement of high temperature shot-peening according to claim 5, it is characterized in that, the end that described sleeve pipe chuck links to each other with rotation axis is provided with six screws, six tip tightening screws are fixed on the clamp sleeve head on the rotation axis by six screws, the sleeve pipe chuck the other end is provided with three screws, and three tack dog screw are fixed on make zero sample or sample of standard in the class specimen holder by three screws.
9, the Work-piece heating arrangement of high temperature shot-peening according to claim 5 is characterized in that, described index chuck, and its concave curvature is identical with sleeve pipe chuck outer diameter curvature radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810035541A CN100595293C (en) | 2008-04-03 | 2008-04-03 | Work-piece heating arrangement for high temperature shot-peening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810035541A CN100595293C (en) | 2008-04-03 | 2008-04-03 | Work-piece heating arrangement for high temperature shot-peening |
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| Publication Number | Publication Date |
|---|---|
| CN101250616A CN101250616A (en) | 2008-08-27 |
| CN100595293C true CN100595293C (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810035541A Expired - Fee Related CN100595293C (en) | 2008-04-03 | 2008-04-03 | Work-piece heating arrangement for high temperature shot-peening |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225014B (en) * | 2013-04-27 | 2014-11-12 | 哈尔滨飞机工业集团有限责任公司 | Holding device used in part surface heat treatment |
| CN104162641B (en) * | 2014-09-04 | 2017-02-15 | 中车戚墅堰机车车辆工艺研究所有限公司 | Device and method for preparing thermometal plane bearing workblanks |
| CN106011430A (en) * | 2016-07-25 | 2016-10-12 | 无锡市曙光高强度紧固件有限公司 | Heat treatment equipment of fastening piece |
| CN114959218A (en) * | 2022-05-27 | 2022-08-30 | 南京航空航天大学 | High-temperature ultrasonic shot blasting device and method |
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2008
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| CN101250616A (en) | 2008-08-27 |
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Assignee: Jiangsu Yuantong Auto Parts Co., Ltd. Assignor: Shanghai Jiao Tong University Contract record no.: 2012320000890 Denomination of invention: Work-piece heating arrangement for high temperature shot-peening Granted publication date: 20100324 License type: Exclusive License Open date: 20080827 Record date: 20120713 |
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