Stress deformation preventing die for investment casting of a thin-walled part
An investment casting and stress deformation technology, applied in the field of mold manufacturing, can solve problems such as damage to the mold, mold deformation, and influence on the use of the mold, and achieve the effect of preventing liquid injection leakage, preventing stress deformation, and being convenient for repeated use.
Active Publication Date: 2021-06-08
温岭市乾亨机电有限公司
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Problems solved by technology
[0005] In order to solve the above-mentioned technical problems, the present invention provides a mold for avoiding stress deformation for casting thin-walled parts of investment casting, so as to solve the problem of deformation of the existing similar investment casting molds due to the expansion of the mold due to heating when the mold is in use. , thus destroying the mold, and the investment casting mold is inconvenient to transfer and move due to its large volume during transfer, which affects the use of the mold between various workshops
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[0029] as attached figure 1 to attach Figure 7 Shown:
[0030]The present invention provides a mold for avoiding stress deformation for investment casting thin-walled parts, which comprises a moving base 1; moving wheels 103 are arranged at the four end corners of the moving base 1; Pedal 2, pedal 2 is symmetrically provided with two places on the left side wall of mobile base 1, and the bottom of pedal 2 is provided with spring 3, and the right end of pedal 2 is connected with longitudinal rack 201, and longitudinal tooth The bar 201 is meshed with the transmission gear 4, the transmission gear 4 is connected with the inner ratchet of the inner ratchet 5, and the outer wheel of the inner ratchet 5 is connected with the outer end of the connecting rod 6. When in use, the two pedals 2 control one direction respectively. The rotation of the foot pedal 2 is stepped on to promote the downward movement of the longitudinal rack 201. The longitudinal rack 201 drives the meshing tr...
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The invention provides a stress deformation preventing die for investment casting of a thin-walled part. The stress deformation preventing die comprises a movable base; two connecting rods are rotationally connected to the right side end face of the left side wall of the movable base, and inner ratchet wheels are arranged at the outer ends of the connecting rods; the outer side end faces of the inner ratchet wheels are connected to transmission gears; the inner ends of the connecting rods are in transmission connection with a transmission rod; swing arms at the two ends of a control rod are connected to lifting supporting legs of a lifting platform; and four lifting supporting legs of the lifting platform make contact with the top end face of the movable base. According to the stress deformation preventing die, two pedals control rotation in one direction respectively, the pedals are treaded to promote a longitudinal rack to move downwards, and the longitudinal rack drives an engaged transmission gear to rotate, so that the locked inner ratchet wheel is driven to rotate, the connecting rods are driven to rotate through the inner ratchet wheels, and due to the arrangement of the inner ratchet wheels, one-way rotation of the connecting rods is achieved; and the pedals can reciprocate under the action of springs, so that the pedals are convenient to use repeatedly.
Description
technical field [0001] The invention belongs to the technical field of mold manufacturing, and more specifically relates to a mold for avoiding stress deformation for investment casting thin-walled parts. Background technique [0002] Investment casting is also known as lost wax casting. Lost wax casting is to use wax to make a wax mold of the part to be cast, and then pour molten metal from the mold sprue. After cooling, the required parts are made. Die casting molds are also very inconvenient in the transfer process. [0003] The mold for avoiding stress and deformation of investment casting thin-walled parts can refer to the CN106424676B patent, which mainly includes a working platform. The mobile support seat is connected to drive the mobile support seat to translate along the two guide rails. The mobile support seat is provided with a translation cylinder, and the piston rod of the translation cylinder extends horizontally to one side of the two parallel guide rails an...
Claims
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IPC IPC(8): B22C9/04B22D33/02
CPCB22C9/04B22D33/02
Inventor 胡定灿
Owner 温岭市乾亨机电有限公司