Box clamping device of small sand box for casting

Abstract

The invention discloses a box clamping device of a small sand box for casting, and relates to the technical field of sand box clamping apparatuses. The device comprises a handle and fixing jaws; the handle comprises a cam and a columnar handle, the cam is fixedly connected with one end of the columnar handle, a rotating shaft is arranged in the cam, the fixing jaws comprise a first fixing jaw and a second fixing jaw, the first fixing jaw and the second fixing jaw are symmetrically arranged with the cam as the center, and are used for fixing and clamping the sand box, through the cam and the rotating shaft which are arranged at one end of the handle, the first fixing jaw, the second fixing jaw and the handle are relatively connected, meanwhile, the position of the cam is adjusted through the columnar handle, the first fixing jaw and the second fixing jaw are in the loosened and shrinkage states, and pouring work is finished. Through the device, in the casting process, the small sand box is fastened, the defects of sand inclusion, air holes and the like of castings are overcome, integrality and size stability of casted sand moulds can be effectively ensured, the structure is simple, use is convenient, and casting efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sand box fixtures, in particular to a box clamping device for a small sand box for casting. Background technique [0002] In the mold casting process, the mold is usually designed as a two-section upper and lower section, so the casting sand box also needs to be designed as an upper sand box and a lower sand box. In order to ensure the integrity and dimensional stability of the cast sand mold, it is necessary to ensure The upper and lower sand boxes can be spliced ​​and fixed very well. At present, wedge-shaped clamps, swing-type box clamps and bolt clamps are generally used to relatively fix the upper and lower sand boxes. However, these types of clamps have the following problems: wedge-shaped box clamps are not only manufactured It is cumbersome and requires a special sand box to use; the swing-type box clamp has high machining accuracy, but its service life is short; the bolt clamp is time-consuming a...

AI Technical Summary

Problems solved by technology

[0002] In the mold casting process, the mold is usually designed as a two-section upper and lower section, so the casting sand box also needs to be designed as an upper sand box and a lower sand box. In order to ensure the integrity and dimensional stability of the cast sand mold, it is necessary to ensure The upper and lower sand boxes can be spliced ​​and fixed very well. At present, wedge-shaped clamps, swing-type box clamps and bolt clamps are generally used to relatively fix the upper and lower sand boxes. However, these types of clamps have the following problems: wedge-shaped box clamps are not only manufactured It is cumbersome and requires a special sand box to use; the swing-type box clamp has high machining accuracy, but its service life is short; the bolt clamp is time-consuming and laborious to operate

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