Automatic adjusting and positioning method for casting fixture

Abstract

The invention discloses an automatic adjusting and positioning method for a casting fixture. The method comprises the following steps: mounting the casting fixture; primarily clamping a casting; detecting the primary clamping in place of the casting; jacking the casting; rotating a reference positioning block: enabling a turning and reversing motor to reverse to drive a reference rotating disk and the reference positioning block on the reference rotating disk to rotate; clamping the casting again; detecting the second clamping in place of the casting. According to the method, a pressure sensor can detect whether the casting is clamped in place or not; if not, a PLC automatically locks a handle and unlocks an automatic locking pin according to instructions. The turning and reversing motor turns, a jacking circular table can jack a casting to be accurately positioned; then, the turning and reversing motor reverses, the reference rotating disk is driven to rotate for a certain angle; then the turning and reversing motor continues to turn, and the jacking circular table declines, so that the casting and the reference positioning block are positioned again.

Description

technical field [0001] The invention relates to an auxiliary method for casting production, in particular to an automatic adjustment and positioning method for casting fixtures. Background technique [0002] Casting tooling has the following installation and positioning methods: [0003] 1. Shoulder fixing: the fixing method adopted by the through-hole sleeve. Press the insert with the boss at the bottom into the cover plate, and then press the movable mold support plate or the fixed mold seat plate and the cover plate tightly with screws. If the insert size is too large, you can also set reinforcement screws in the middle. Usually, circular inserts have bosses all around, and non-circular inserts only need to be provided with some bosses, large inserts have bosses on both sides, and small inserts have bosses on one side. For circular and direction requirements, anti-rotation pins are also required to prevent misalignment. This fixing method is generally suitable for die...

AI Technical Summary

Problems solved by technology

The accuracy of manual positioning adjustment is low, generally requires multiple operations, long adjustment time and low efficiency

[0010] 2. During the processing, when the clamping and loosening of the corner oil cylinder occurs, and the pressure detected by the pressure sensor is lower than the set value, the microcomputer controller can only give an early warning. When there is no operator on site, the equipment will automatically stop. When the site is long When no one is on duty or repairing for a long time, the equipment will also be at a standstill, which will seriously affect the processing efficiency of production

[0013] In the above patent application, since each positioning block can move axially, the purpose of positioning reference is lost. After the casting is clamped, it is prone to tilting during subsequent operations, resulting in a high scrap rate.

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