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Integral cast aluminum cradle type five-axis swinging frame and manufacturing method thereof

An integral casting and integral casting technology, which is applied to the manufacture of cast aluminum and metal material processing, can solve the problems of large contour size, high magnesium content, and difficult feeding of castings, and achieve acceleration and response improvement, corrosion resistance Good, the effect of speed gain increase

Active Publication Date: 2017-01-18
沈阳优尼斯智能装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The difficulty of casting ornaments lies in: the material of the swing frame is cast aluminum instead of cast iron, and the material of the ornaments is aluminum 7075 alloy, which is a high-strength alloy for aviation use, with a higher magnesium content of 2.1-2.9%, complex composition and complex smelting process
The alloy has a wide solidification temperature range of 477-635°C, and solidifies in a mushy state during the solidification process. The casting is not easy to feed and shrink, and it is not easy to obtain dense castings
The structural characteristics of castings are wall thickness, more than 100mm, and large outline size, that is, the swing frame is a thick and large structural part. With such a structure, it is not easy to obtain dense castings

Method used

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  • Integral cast aluminum cradle type five-axis swinging frame and manufacturing method thereof
  • Integral cast aluminum cradle type five-axis swinging frame and manufacturing method thereof
  • Integral cast aluminum cradle type five-axis swinging frame and manufacturing method thereof

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Embodiment Construction

[0034] The structure of the cradle-type five-axis pendulum frame of integral cast aluminum of the present invention is shown in figure 1 , the pendulum frame for A-axis single drive, in the figure d is the two coaxial holes of the A-axis motor mounting hole, there is a through hole at the support end marked b, which is the through hole of the support end, and there is a blind hole on the opposite side , is the A-axis motor installation hole; if the A-axis is a dual-drive, there are blind holes on the outside of both support ends, and there are no through holes. The radial hole c of the C-axis motor is perpendicular to the installation hole d of the A-axis motor.

[0035] The composition of the integral cast aluminum cradle five-axis pendulum is shown in image 3 :

[0036] The main component of the rack blank is aluminum 7075, and the non-aluminum components also include copper Cu1.6%, magnesium Mg2.5%, chromium Cr0.23%, zinc Zn5.6%, silicon Si0.2%, by weight percentage, Ir...

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Abstract

Provided is an integral cast aluminum cradle type five-axis swinging frame. The integral cast aluminum cradle type five-axis swinging frame is characterized in that the swinging frame is made of cast aluminum alloy 7075; as for the mechanical properties, sigma b is 530 Mpa, sigma 0.2 is 460 Mpa, and sigma 5 is 8%; axial holes d of two shafts A are coaxial with the planeness being within 0.01 mm; and the planeness of the mounting plane a of a C-axis motor and the planeness of the mounting plane b of an A-axis motor are 0.005 mm. The integral cast aluminum cradle type five-axis swinging frame is formed through integral casting and machining. A manufacturing method comprises the steps that the alloy is smelted and poured, and the swinging frame is subjected to casting, thermal treatment and integral machining. As for applied clamps, the integral cast aluminum cradle type five-axis swinging frame is characterized in that lengthening jack catches are manufactured and combined to claws of a four-claw square chuck through flat keys and screws, so that the lengthening jack catches are lengthened to be equal to the internal diameter of a horizontal axle hole of the swinging frame, and the jacking end faces of the lengthening jack catches are trimmed according to the diameter of a machined axial hole. A cast iron swinging frame is 205 Kg heavy while the cast aluminum swinging frame is only 75 Kg heavy, that is, the overall weight is reduced by 130 Kg. The A-axis acceleration of a cast iron swinging table is 7 rad / s<2> while the acceleration of the cast aluminum swinging frame applied to an intelligent multi-axis vertical machining center is 18 rad / s<2>. The speed gain of the cast aluminum swinging frame can also be doubled. The acceleration and response speed of a machine tool are remarkably improved.

Description

technical field [0001] The invention relates to metal material processing, a cast aluminum manufacturing method of integral casting and processing of a swing frame of machine tool structural parts, a cradle-type five-axis swing frame of integral cast aluminum and a manufacturing method thereof. Background technique [0002] Most of the existing machine tool structures are made of gray cast iron, which has high strength and good wear resistance, but has a large tendency of whitening and poor casting performance, and artificial aging treatment is required. It is used for important castings in machinery manufacturing, such as bed guide rails, lathes, punches and bed with large force, spindle box gears, etc.; it can also be used as high-pressure oil cylinders, pump bodies, valve bodies, etc., as well as upsetting dies, cold stamping dies and Parts that require surface hardening. At the same time, the density of gray cast iron HT300 is 7300kg / m3. Compared with cast aluminum (707...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q1/01B23P15/00C22C21/10B22D27/13B22D27/04B22D21/04C22F1/053
CPCB22D21/04B22D27/04B22D27/13B23P15/00B23Q1/01C22C21/10C22F1/002C22F1/053
Inventor 于春明薛佟王天宇赵星张中张童张传思陈宏超李岩王志国李潭仲辉
Owner 沈阳优尼斯智能装备有限公司
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