CN101451183A - Partial hardening apparatus by high frequency current for shaft type parts - Google Patents
Partial hardening apparatus by high frequency current for shaft type parts Download PDFInfo
- Publication number
- CN101451183A CN101451183A CNA2008102428884A CN200810242888A CN101451183A CN 101451183 A CN101451183 A CN 101451183A CN A2008102428884 A CNA2008102428884 A CN A2008102428884A CN 200810242888 A CN200810242888 A CN 200810242888A CN 101451183 A CN101451183 A CN 101451183A
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- China
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- pumping board
- induction coil
- hole
- porcelain tube
- strongback
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Abstract
The invention provides a device for safely, conveniently and highly efficiently performing local high-frequency quenching on shaft components such as pin shafts. The device comprises porcelain tubes which are arranged up and down, positioning plates which are provided with through holes, and sucking plates, wherein quenching sinks which are positioned on through hole axial lines are arranged under the sucking plates; the sucking plates are connected with a transmission mechanism which drives the sucking plates to perform reciprocating motion along the radial direction of the through holes; induction coils which are connected with an alternating-current power supply are coaxial with the porcelain tubes and the through holes and arranged between the porcelain tubes and the positioning plates; and when the sucking plates perform reciprocating motion, the sucking plates can block out or open the through holes.
Description
Technical field
The present invention relates to a kind of device that the axial workpiece local high-frequency quenches that is used for, in particular for chain hinge pin being carried out the device of selective hardening.
Background technology
The material of the bearing pin of common chain mostly is steel alloy greatly, then by integral quenching to increase its surperficial wear resisting property.The die amount of this bearing pin mostly is about 3% of pin diameter greatly.But the chain that has needs bigger die amount, if the bearing pin integral quenching, the die amount is crossed conference and caused the local cracking of bearing pin, and chain reduces work-ing life; If the modified or not thermal treatment of bearing pin, because bearing pin hardness deficiency, the die amount is crossed conference and is caused the bearing pin bending, and chain is died for the sake of honour.
For addressing the above problem, the normal method that adopts is bearing pin integral quenching rear pin shaft two ends spot annelings again, reduces the hardness at two ends, to adapt to the requirement of big die amount chain.But this method not only cost height, operation is loaded down with trivial details, and the annealing hardness at two ends is restive, is unfavorable for continuous production.
Summary of the invention
The purpose of this invention is to provide a kind of efficient, safety, easily axial workpiece such as bearing pin are carried out the device that local high-frequency quenches.
This partial hardening apparatus by high frequency current for shaft type parts, comprise the porcelain tube that is arranged above and below, the strongback that has through hole, pumping board, the quenching tank that is positioned on the through-bore axis is being arranged below the pumping board, pumping board and drive it and link to each other along the transmission rig that through hole radially moves back and forth, with the induction coil and the porcelain tube of AC power connection, through hole is coaxial and be arranged on porcelain tube and strongback between; When pumping board moved back and forth, pumping board can block or open described through hole.
Transmission rig has varied, comprises the electro-magnet that is connected in the circuit as transmission rig, by the adhesive and the disconnection of electro-magnet, controls moving back and forth of pumping board.
This device, be to utilize adhesive of circuit controling electromagnetism iron and disconnection, the control pumping board moves back and forth, when electro-magnet cuts off the power supply, pumping board blocks the part in dropping in the cavity volume that is formed by porcelain tube, induction coil, through hole, open high frequency electric source simultaneously and power, to the parts locally ratio-frequency heating relative with induction coil to induction coil; When axial magnetic Tie Tong electricity, the control pumping board moves, and opens described through hole, discharges and has heated the part that finishes, and part is fallen in the quenching tank and quenched.
The present invention is by adhesive of circuit controling electromagnetism iron and disconnection, thereby the control pumping board moves back and forth, and reaches the quantity-produced purpose; By pumping board to the accurate location of part, the control of finishing, induced power and time to the induction coil size, middle portion that can a ratio-frequency heating part, thereby realize the local heating of part, guarantee that the two ends hardness of part is middle low, reach that die is not died for the sake of honour, indehiscent purpose.
Said apparatus, (as connecting by dovetail-indent) one that removably connect on pumping board is arranged on the quartz plate of through hole below.Preferably the material of quartz plate and strongback is a silica glass, and the material of porcelain tube is a pottery, reaches heat insulation purpose.
Said apparatus, the material of pumping board is a synthetic glass, prevents induction coil short circuit or sensed.
Said apparatus, porcelain tube, strongback, induction coil are co-located in the epoxy resin pattern piece.The epoxy resin pattern piece is convenient to die cast, prevents induction coil short circuit or sensed simultaneously.
Said apparatus, it also comprises and the co-axial copper ring that is arranged in the induction coil of induction coil.Preferably copper ring and induction coil are integrally welded.The induction coil dimensional precision is not very high, for the ease of part being positioned event copper ring is set.Just can change the size of part by the size that changes hole dimension in the copper sheet.
Description of drawings
Fig. 1 is a sectional structural map of the present invention
Fig. 2 is the partial enlarged drawing of Fig. 1
Fig. 3 is induction coil and copper ring connection diagram
Fig. 4 is the vertical view of Fig. 3
Embodiment
Partial hardening apparatus by high frequency current for shaft type parts welds copper ring 5 co-axial with it in the induction coil 7 with the AC power connection as shown in the figure.The porcelain tube 6 that is arranged above and below, copper ring 5, strongback 4 are co-located in the epoxy resin pattern piece 8.Support 2 is used for shack epoxy resins model block 8.Have through hole on the strongback, through hole, copper ring, porcelain tube are coaxial.Connect the quartz plate 3 that is positioned at the through hole below by dovetail-indent on the pumping board 1, it links to each other pumping board and drive along the transmission rig that through hole radially moves back and forth.Quenching tank 9 is positioned at the through hole below, and below pumping board.Transmission rig comprises the electro-magnet that is connected in the circuit, by the adhesive and the disconnection of electro-magnet, controls moving back and forth of pumping board.This transmission rig that comprises electro-magnet belongs to prior art, is not described in detail.
When pumping board moved back and forth, the quartz plate on the pumping board can block or open described through hole.
The material of quartz plate and strongback is a silica glass, and the material of porcelain tube is a pottery.The material of support and pumping board is a synthetic glass.
Utilize adhesive of circuit controling electromagnetism iron and disconnection, control pumping board and move back and forth.When electro-magnet cut off the power supply, pumping board blocked the part 10 that has fallen, opens High-frequency machine simultaneously, and the part 10 that has fallen is heated in the cavity volume medium-high frequency of being made up of porcelain tube 6, quartz plate 3, copper ring 6, strongback 4; The control pumping board discharges and has heated the part 10 that finishes when axial magnetic Tie Tong electricity, makes it fall the quenching tank and quenches.
Claims (9)
1. partial hardening apparatus by high frequency current for shaft type parts, comprise induction coil, it is characterized in that: further comprising the porcelain tube that is arranged above and below, the strongback that has through hole, pumping board, the quenching tank that is positioned on the through-bore axis is being arranged below the pumping board, pumping board and drive it and link to each other along the transmission rig that through hole radially moves back and forth, with the induction coil and the porcelain tube of AC power connection, through hole is coaxial and be arranged on porcelain tube and strongback between; When pumping board moved back and forth, pumping board can block or open described through hole.
2. device according to claim 1 is characterized in that: transmission rig comprises the electro-magnet that is connected in the circuit, by the adhesive and the disconnection of electro-magnet, controls moving back and forth of pumping board.
3. device according to claim 1 is characterized in that: at the quartz plate that is arranged on below the through hole that removably connects on the pumping board.
4. device according to claim 3 is characterized in that: the material of quartz plate and strongback is a silica glass, and the material of porcelain tube is a pottery.
5. device according to claim 3 is characterized in that: quartz plate is to be connected on the pumping board by dovetail-indent.
6. device according to claim 1 is characterized in that: the material of pumping board is a synthetic glass.
7. device according to claim 1 is characterized in that: porcelain tube, strongback, induction coil are co-located in the epoxy resin pattern piece.
8. device according to claim 1 it is characterized in that: further comprising and the co-axial copper ring that is arranged in the induction coil of induction coil.
9. device according to claim 8 is characterized in that: copper ring and induction coil are integrally welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102428884A CN101451183A (en) | 2008-12-30 | 2008-12-30 | Partial hardening apparatus by high frequency current for shaft type parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102428884A CN101451183A (en) | 2008-12-30 | 2008-12-30 | Partial hardening apparatus by high frequency current for shaft type parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101451183A true CN101451183A (en) | 2009-06-10 |
Family
ID=40733671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102428884A Pending CN101451183A (en) | 2008-12-30 | 2008-12-30 | Partial hardening apparatus by high frequency current for shaft type parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101451183A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131831A (en) * | 2013-03-15 | 2013-06-05 | 重庆德卡汽车零部件制造有限公司 | Induction quenching method and device for bottoms of narrow grooves |
| CN110923434A (en) * | 2019-10-26 | 2020-03-27 | 安徽黄山恒久链传动有限公司 | Local high-frequency quenching device for pin shaft |
| CN113603953A (en) * | 2021-08-05 | 2021-11-05 | 安庆市季彤工贸有限公司 | Preparation method of degradable film particles |
-
2008
- 2008-12-30 CN CNA2008102428884A patent/CN101451183A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131831A (en) * | 2013-03-15 | 2013-06-05 | 重庆德卡汽车零部件制造有限公司 | Induction quenching method and device for bottoms of narrow grooves |
| CN110923434A (en) * | 2019-10-26 | 2020-03-27 | 安徽黄山恒久链传动有限公司 | Local high-frequency quenching device for pin shaft |
| CN110923434B (en) * | 2019-10-26 | 2021-06-15 | 安徽黄山恒久链传动有限公司 | Local high-frequency quenching device for pin shaft |
| CN113603953A (en) * | 2021-08-05 | 2021-11-05 | 安庆市季彤工贸有限公司 | Preparation method of degradable film particles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090610 |