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CN208528052U - A kind of shaping dies of shaft sleeve parts part thixoextruding - Google Patents

A kind of shaping dies of shaft sleeve parts part thixoextruding Download PDF

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Publication number
CN208528052U
CN208528052U CN201821020810.3U CN201821020810U CN208528052U CN 208528052 U CN208528052 U CN 208528052U CN 201821020810 U CN201821020810 U CN 201821020810U CN 208528052 U CN208528052 U CN 208528052U
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CN
China
Prior art keywords
die
punch
sleeve
hydraulic press
mold
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Expired - Fee Related
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CN201821020810.3U
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Chinese (zh)
Inventor
肖寒
段志科
熊迟
周荣锋
卢德宏
蒋业华
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Priority to CN201821020810.3U priority Critical patent/CN208528052U/en
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Abstract

本实用新型公开一种轴套零件局部触变挤压的成形模具,所述成形模具包括凸模、凹模、凹模加热线圈、套筒、弹簧;凸模与液压机顶端相连,液压机控制凸模上下移动;凸模的压头直径对应轴套零件法兰端部的外径和凹模上部内径;凹模固定在液压机工作台面上,内部设有凹模加热线圈,凹模加热线圈与金属管需要加热的位置相对应,凹模内部有一拔模斜度1°的圆柱体凸台;套筒与凹模间隙配合;凸模、凹模、套筒合模后形成的型腔与轴套零件形状相对应。本实用新型所述模具结构简单,采用本实用新型所述模具成形的轴套零件属于近净成形,少或者无切削,提高材料利用率。模具操作方便、生产效率较高、易于实现机械化和自动化生产。

The utility model discloses a forming die for partial thixotropic extrusion of a shaft sleeve part. The forming die comprises a punch, a concave die, a concave die heating coil, a sleeve and a spring; the punch is connected with the top end of a hydraulic press, and the hydraulic press controls the punch Move up and down; the diameter of the indenter of the punch corresponds to the outer diameter of the flange end of the bushing part and the inner diameter of the upper part of the die; the die is fixed on the working table of the hydraulic press, and the die heating coil, the die heating coil and the metal tube are arranged inside. Corresponding to the position that needs to be heated, there is a cylindrical boss with a draft angle of 1° inside the concave mold; the sleeve and the concave mold are gap-fitted; the cavity and the bushing parts formed after the punch, the concave mold and the sleeve are closed. corresponding shape. The mold of the utility model has a simple structure, and the shaft sleeve parts formed by the mold of the utility model belong to near-net-shape, with little or no cutting, thereby improving the material utilization rate. The mold is easy to operate, has high production efficiency, and is easy to realize mechanized and automated production.

Description

A kind of shaping dies of shaft sleeve parts part thixoextruding
Technical field
The utility model relates to a kind of shaping dies of shaft sleeve parts part thixoextruding, belong to semi-solid-state shaping field.
Background technique
Metal axle sleeve part has the effects that support rotating shaft, positioning and be oriented to, and is commonly used for automobile, high-speed rail, aviation boat The fields such as it.Conventional bushings part production method generally uses the liquid formings tubular blank material such as centrifugal casting, then passes through machine Tool processing, by tubular blank truck at required shaft sleeve parts shape, the shaft sleeve parts shaped in this way, on the one hand due to The blank of liquid forming is large dendritic crystal tissue, causes shaft sleeve parts comprehensive mechanical property not high, influences part service life;Separately On the one hand, blank causes stock utilization low, the production cycle is long by a large amount of machinings.Another production method is exactly Tubing is prepared using plastic forming technology, is then machined again as shaft sleeve parts, on the one hand this method requires axle sleeve zero The metal material of part has good plastic forming ability, therefore, is not suitable for the metal material that plastic forming ability is poor;Another party Face needs to be machined, and leads to that waste of material is more, the production cycle is long, production is at high cost.
Semi-solid metal forming technology is that the semi-solid metal slurry in solid-liquid two-phase temperature range is formed Method.Compared with conventional cast and forging, the material comprehensive utilization ratio of semi-solid metal forming technology is higher, and can shape shape Shape is complicated and precision and the higher part of performance quality requirements, and forming temperature is low, and shaping load is small, it can be achieved that near-net forming, because This prepares shaft sleeve parts using semi-solid-state shaping method and is expected to solve that mechanical property is low in existing axle sleeve production, stock utilization is low The problems such as, realize nearly end form, the production of low cost and high performance axle sleeve.
Summary of the invention
The purpose of this utility model is low, poor mechanical property, production for stock utilization in existing axle sleeve preparation method The problems such as period is long provides a kind of shaping dies of shaft sleeve parts part thixoextruding, and it is high, raw to be used to prepare out stock utilization Produce high-efficient, excellent in mechanical performance shaft sleeve parts.
The utility model is achieved through the following technical solutions:
A kind of shaping dies of shaft sleeve parts part thixoextruding, including punch-pin 1, cavity plate 2, cavity plate heating coil 3, sleeve 5, spring 6;Punch-pin 1 is connected with hydraulic press top, and hydraulic press control punch-pin 1 moves up and down;The pressure head diameter of punch-pin 1 corresponds to axle sleeve 2 upper inner diameter of outer diameter and cavity plate of part flange end;Cavity plate 2 is fixed on hydraulic press workbench face, and inside adds equipped with cavity plate The position of heat coil 3, cavity plate heating coil 3 is corresponding with the position that metal tube 4 needs to heat, and has a draft oblique inside cavity plate 2 The cylindrical body boss of 1 ° of degree, metal tube 4, sleeve 5 and spring 6 cover on cylindrical body boss, and spring 6 is located at 5 lower section of sleeve, set Cylinder 5 is located at 4 lower section of metal tube, sleeve 5 and 2 clearance fit of cavity plate;The type chamber and axis that punch-pin 1, cavity plate 2, sleeve 5 are formed after molding It is corresponding to cover part shape.
Punch-pin 1 described in the utility model is fixed on hydraulic press apical position by T-type plate;Cavity plate 2 is fixed on by T-type plate Hydraulic press workbench face position is kept fixed in extrusion process.
Punch-pin 1 described in the utility model, cavity plate 2,5 mold materials of sleeve select H13 mould steel.
The use process of mold described in the utility model: before shaft sleeve parts extrusion molding, hydraulic press control punch-pin 1 retreats to liquid Press top;To punch-pin 1, cavity plate 2, sleeve 5 surface spraying graphite release agent;Spring 6, sleeve 5 are successively put into cavity plate 2;Be locally heated to 350 ~ 400 DEG C using heating coil to cavity plate 2, meanwhile, local heating metal tube 4 is simultaneously kept the temperature, then Metal tube 4 after heating is put into cavity plate 2, and hydraulic press is driven to make 1 vertical downward movement of punch-pin, closes punch-pin 1 and cavity plate 2 It closes, and pressure maintaining is for a period of time, then controlling hydraulic press makes punch-pin 1 be retracted into hydraulic press top, meanwhile, spring 6 is replied and is driven Moving sleeve 5 makes shaft sleeve parts eject cavity plate 2, takes out quick water quenching after shaft sleeve parts, finally carries out T6 heat treatment.Entirely it is squeezed into Shape process, Mould operation are simple, it is easy to accomplish mechanization, continuous production, and energy saving, the shaft sleeve parts group finally obtained It is uniform to knit performance, comprehensive mechanical property is preferable.
The utility model has the beneficial effects that
(1) mold described in the utility model uses partial plastic forming, only carries out local heating to metal tube and shapes, reduces and add Hot cost and heating time shorten manufacturing cycle, improve production efficiency.
(2) shaft sleeve parts of mold preparation described in the utility model, compared with conventional centrifugal casting, one side axle sleeve tissue It is the microstructure of semisolid of equally distributed nearly spherical solid phase particles and liquid phase Dispersed precipitate, better performances;On the other hand, it shaped It is squeezed the effect of power in journey, dense structure, without Shrinkage cavity defect, high mechanical properties;In addition, the axle sleeve zero of the invention Part belongs to near-net-shape, and less or without cutting, stock utilization is high.
(3) mold described in the utility model forms mold cavity by punch-pin, cavity plate, sleeve, spring etc., is squeezing metal tube It during compressive strain, is acted on by three-dimensional compressive stress, improves metal tube plastic deformation ability, while increasing the densification of shaft sleeve parts Property, improve axle sleeve comprehensive mechanical property.
(4) mold described in the utility model is made of the ejecting mechanism of shaft sleeve parts sleeve, spring etc., on the one hand, is squeezing When compressive strain, sleeve and spring apply reverse extrusion power to metal;On the other hand, after extruding, after punch-pin unloading, spring is returned Shaft sleeve parts are ejected concave die cavity by multiple drive sleeve, reach demoulding purpose.
(5) mould structure described in the utility model is reasonable, simple to operate, it can be achieved that mechanization and automation control, Cost of labor is reduced, it can be achieved that continuous batch production, has saved cost, improves efficiency.
Detailed description of the invention
Fig. 1 is the mold structure diagram before thixoextruding forming described in the utility model.
Fig. 2 is the mold structure diagram of thixoextruding molding described in the utility model.
In Fig. 1: 1- punch-pin;2- cavity plate;3- cavity plate heating coil;4- metal tube;5- sleeve;6- spring.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but the guarantor of the utility model Shield range is not limited to the content.
Embodiment 1
A kind of shaping dies of shaft sleeve parts part thixoextruding, including punch-pin 1, cavity plate 2, cavity plate heating coil 3, sleeve 5, spring 6;Punch-pin 1 is fixed on hydraulic press apical position by T-type plate, and hydraulic press control punch-pin 1 moves up and down;The pressure of punch-pin 1 Head diameter corresponds to 2 upper inner diameter of outer diameter and cavity plate of shaft sleeve parts flange end;Cavity plate 2 is fixed on hydraulic press work by T-type plate Make table position, is kept fixed in extrusion process;Inside is equipped with cavity plate heating coil 3, the position of cavity plate heating coil 3 and metal The position that pipe 4 needs to heat is corresponding, there is the cylindrical body boss of 1 ° of a pattern draft, metal tube 4, sleeve 5 and bullet inside cavity plate 2 Spring 6 covers on cylindrical body boss, and spring 6 is located at 5 lower section of sleeve, and sleeve 5 is located at 4 lower section of metal tube, between sleeve 5 and cavity plate 2 Gap cooperation;The type chamber that punch-pin 1, cavity plate 2, sleeve 5 are formed after molding is corresponding with shaft sleeve parts shape;The punch-pin 1, cavity plate 2, 5 mold materials of sleeve select H13 mould steel.
Device described in the utility model is further described below with reference to specifically used method, with ZCuSn10P1 copper Alloy is process object:
(1) measuring ZCuSn10P1 copper alloy solidus temperature is 876.1 DEG C, and liquidus temperature is 1024.2 DEG C.
(2) the As-extruded ZCuSn10P1 copper alloy tube of internal diameter 26mm, wall thickness 7mm, height 52mm are subjected to local heating, The height of heating is 12mm, and 886 DEG C of heating temperature simultaneously keeps the temperature 5 minutes;Concave die cavity is preheated to 450 DEG C simultaneously.
(3) by the ZCuSn10P1 copper alloy tube after heating be put into preheating after concave die cavity, then drive punch-pin with 10mm/s movement velocity squeezes metal tube, pressure maintaining 4s after extruding.
(4) the quick water quenching of rear axle housing part will be squeezed, be then heated to 550 DEG C and keeps the temperature 1 hour, is then air-cooled to room Temperature obtains shaft sleeve parts.
The copper alloy shaft sleeve piece surface that the present embodiment is prepared is bright and clean, accurate size, no marking and the defects of crackle, Good mechanical properties.By micro-organization chart as can be seen that using the available even tissue of the preparation method semisolid group It knits, average crystal grain diameter is 84.2 μm, and form factor 1.37, solid-phase grain is evenly distributed, and semisolid nodularization effect is preferable.

Claims (3)

1.一种轴套零件局部触变挤压的成形模具,其特征在于,所述成形模具包括凸模(1)、凹模(2)、凹模加热线圈(3)、套筒(5)、弹簧(6);凸模(1)与液压机顶端相连,液压机控制凸模(1)上下移动;凸模(1)的压头直径对应轴套零件法兰端部的外径和凹模(2)上部内径;凹模(2)固定在液压机工作台面上,内部设有凹模加热线圈(3),凹模加热线圈(3)的位置与金属管(4)需要加热的位置相对应,凹模(2)内部有一拔模斜度1°的圆柱体凸台,金属管(4)、套筒(5)和弹簧(6)均套在圆柱体凸台上,弹簧(6)位于套筒(5)下方,套筒(5)位于金属管(4)下方;套筒(5)与凹模(2)间隙配合;凸模(1)、凹模(2)、套筒(5)合模后形成的型腔与轴套零件形状相对应。1. A forming die for partial thixotropic extrusion of bushing parts, characterized in that the forming die comprises a punch (1), a die (2), a die heating coil (3), and a sleeve (5) , spring (6); the punch (1) is connected to the top of the hydraulic press, and the hydraulic press controls the punch (1) to move up and down; the diameter of the indenter of the punch (1) corresponds to the outer diameter of the flange end of the sleeve part and the die ( 2) The inner diameter of the upper part; the die (2) is fixed on the working table of the hydraulic press, and there is a die heating coil (3) inside, and the position of the die heating coil (3) corresponds to the position where the metal tube (4) needs to be heated, There is a cylindrical boss with a draft angle of 1° inside the die (2), the metal tube (4), the sleeve (5) and the spring (6) are all sleeved on the cylindrical boss, and the spring (6) is located in the sleeve. Below the cylinder (5), the sleeve (5) is located below the metal tube (4); the sleeve (5) is in clearance fit with the die (2); the punch (1), the die (2), and the sleeve (5) The cavity formed after clamping the mold corresponds to the shape of the bushing part. 2.根据权利要求1所述轴套零件局部触变挤压的成形模具,其特征在于:凸模(1)通过T型板固定在液压机顶端位置;凹模(2)通过T型板固定在液压机工作台面位置,挤压过程中保持固定。2. The forming die for partial thixotropic extrusion of bushing parts according to claim 1, characterized in that: the punch (1) is fixed at the top of the hydraulic press through a T-shaped plate; the female die (2) is fixed at the top of the hydraulic press through a T-shaped plate; The position of the working table of the hydraulic press remains fixed during the extrusion process. 3.根据权利要求1所述轴套零件局部触变挤压的成形模具,其特征在于:凸模(1)、凹模(2)、套筒(5)模具材料选用H13模具钢。3. The forming die for partial thixotropic extrusion of bushing parts according to claim 1, wherein the punch (1), the concave die (2) and the sleeve (5) are made of H13 die steel.
CN201821020810.3U 2018-06-29 2018-06-29 A kind of shaping dies of shaft sleeve parts part thixoextruding Expired - Fee Related CN208528052U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112191701A (en) * 2020-12-08 2021-01-08 奇精机械股份有限公司 Metal pipe cold extrusion forming die and machining method thereof
CN114054655A (en) * 2021-10-28 2022-02-18 昆明理工大学 A thixotropic extrusion method for copper-steel composite shaft sleeve parts
CN114192786A (en) * 2021-12-21 2022-03-18 广东盈峰材料技术股份有限公司 Production method of shaft sleeve with boss

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112191701A (en) * 2020-12-08 2021-01-08 奇精机械股份有限公司 Metal pipe cold extrusion forming die and machining method thereof
CN112191701B (en) * 2020-12-08 2021-02-09 奇精机械股份有限公司 Metal pipe cold extrusion forming die and machining method thereof
CN114054655A (en) * 2021-10-28 2022-02-18 昆明理工大学 A thixotropic extrusion method for copper-steel composite shaft sleeve parts
CN114192786A (en) * 2021-12-21 2022-03-18 广东盈峰材料技术股份有限公司 Production method of shaft sleeve with boss

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Granted publication date: 20190222

Termination date: 20200629