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Hydraulic expansion assembled combination die for quenching ferrules

A combined mold and assembled technology, applied in quenching devices, manufacturing tools, furnace types, etc., can solve the problems of no assembly and combined structure, large proportion of mold investment, larger than production site, etc., to solve the problem of demolding difficulties, The effect of stable quenching quality and easy correction

Active Publication Date: 2012-11-14
NINGXIA MACHINERY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the molds commonly used in the quenching of large-scale trap parts in China do not have an assembled and combined structure. A workpiece of one size requires a set of molds. The number of molds is large. Correspondingly, the place for stacking molds is also large, even larger than production When the site is used repeatedly, it is time-consuming and laborious to find the corresponding mold. For extra-large bearings produced in small batches or even single-piece production, the investment in molds accounts for a larger proportion. Bearing companies urgently need to change this status quo

Method used

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  • Hydraulic expansion assembled combination die for quenching ferrules
  • Hydraulic expansion assembled combination die for quenching ferrules
  • Hydraulic expansion assembled combination die for quenching ferrules

Examples

Experimental program
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Effect test

Embodiment 1

[0015] like figure 1 , 3 As shown, a quenching disc 4 is installed on the quenching workbench 2, and a mold seat 5 is installed on the quenching disc. The cylinder piston rod 1 is fixedly connected with the core cone 10 through the fixed nut 11, and the quenching work block is evenly distributed on the outer cone surface of the core cone, and the quenching work block is wrapped on the outer cone surface of the core cone by the ring tension spring 9 superior. The quenching working block is composed of a female cone block 8 and a working block 6 fixed on the female cone block by fixing screws 12. Cooperate with the outer arc surface of the work block, and have a longitudinal groove 15 on the outer arc surface where the work block is in contact with the quenched workpiece.

[0016] During quenching, the piston rod 1 of the oil cylinder moves upward, and under the action of the annular tension spring 9, the quenching work block radially contracts. According to the inner dia...

Embodiment 2

[0021] like figure 2 , 3 As shown, when the inner hole of the workpiece is two cone surfaces, such as the outer ring of a double-row tapered roller bearing, the cone 10 in the center can be used to meet the needs of the quenched part. Two cones with two small heads facing each other can be used. The composed core cone, the lower cone 10-2 and the upper cone 10-1 are set on the guide mandrel 14, and the guide mandrel is fixedly installed on the quenching workbench 2, and the upper end surface of the upper cone and the guide mandrel An upper compression spring 16 is installed between them, and the quenching work block installed on the outer cone surface of the two cones is composed of the female cone block 8 and the work block 6 fixed on the female cone block by fixing screws, the inner cone block of the female cone block The arc surface matches the outer cone surfaces of the two cones, and the working block matches the outer arc surface of the female cone block. A longitudina...

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Abstract

The invention relates to a heat treatment quenching die, and in particular relates to a hydraulic expansion assembled combination die for quenching ferrules. The hydraulic expansion assembled combination die comprises a quenching working table, a quenching disc which is installed on the quenching working table, a die holder and a quenching die. The hydraulic expansion assembled combination die is characterized in that the quenching die consists of a central conical body and 4-12 quenching working blocks which are installed on the external conical surface of the central conical body, the quenching working blocks are wrapped on the external conical surface of the central conical body through annular tension springs, and a hydraulic rod of the quenching die is connected with the central conical body. The hydraulic expansion assembled combination die is used for solving the problems that a quenching workpiece deforms and is difficult to demould; the volume and the number of the die are greatly decreased, the problems of die processing difficulty and die storage space are solved, and the production period and the production cost of the die are also greatly reduced; one set of die can be suitable for quenching the workpieces within one dimension range; and a quenched workpiece has a stable size and small deformation, is easy to correct and has stable quenching quality.

Description

technical field [0001] The invention relates to a heat treatment quenching die, in particular to a hydraulic expansion-contraction assembled combined die for ferrule-like quenching. Background technique [0002] At present, the molds commonly used in the quenching of large-scale trap parts in China do not have an assembled and combined structure. A workpiece of one size requires a set of molds. The number of molds is large. Correspondingly, the place for stacking molds is also large, even larger than production When the site is used repeatedly, it is time-consuming and labor-intensive to find the corresponding mold. For extra-large bearings produced in small batches or even single-piece production, the investment in molds accounts for a larger proportion. Bearing companies urgently need to change this status quo. Contents of the invention [0003] The purpose of the present invention is to provide a hydraulic expansion-shrinkage assembled combined mold for quenching snare ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/63C21D1/673C21D9/40
Inventor 张光荣徐军晓王国升
Owner NINGXIA MACHINERY RES INST
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