Pressing machine for liner

Abstract

A pressing machine for a liner comprises a programmable logic controller (PLC) control system, a frame, a clamping mechanism, a plugging mechanism, a feeding mechanism, a pushing mechanism and a pressing mechanism. The clamping mechanism is arranged on the upper portion of the frame. A working platform is arranged on the lower portion of the frame. The plugging mechanism is fixedly arranged on the lower end surface of the working platform and corresponding to a positioning hole of the working platform. The pushing mechanism is arranged on a pressing plate of the clamping mechanism. The pressing plate is provided with a transversal linear slide. The feeding mechanism and the pressing mechanism are matched and respectively connected with the pushing mechanism through a mounting plate. The clamping mechanism, the plugging mechanism, the feeding mechanism, the pushing mechanism and the pressing mechanism are all controlled by the PLC control system. The pressing machine is adaptable to assembling of the liner of an oil pump cylinder body of an engine, and capable of realizing automatic operation, improving working efficiency, reducing labor intensity and improving products quality.

Description

technical field [0001] The invention relates to a press-fitting machine, which is suitable for automatic press-fitting of engine cylinder oil pump bushings, and belongs to the technical field of press machines. Background technique [0002] During the manufacturing process of the engine oil pump, the bushing needs to be fitted to the fixed part of the oil pump cylinder. The traditional bush installation generally adopts manual assembly, that is, the operator relies on a simple press-fit rod to offset the bush, and then manually hammers the press-fit rod to press-fit the bush to the corresponding position. The following problems exist in the manual pressing of bushings: [0003] 1) The positioning is not accurate during the press-fitting process, causing the bushing in the cylinder to be biased, and it will also cause the bushing hole to deform, making it difficult for the oil pump to rotate and affecting engine lubrication; [0004] 2) The hand of the operator is in direct...

AI Technical Summary

Problems solved by technology

[0003] 1) The positioning is not accurate during the press-fitting process, causing the bushing in the cylinder to be biased, and it will also cause the bushing hole to deform, making it difficult for the oil pump to rotate and affecting engine lubrication;

[0004] 2) The hand of the operator is in direct contact with the punch part of the press rod, which is prone to crushing and poses a safety hazard;

[0005] 3) Since the cylinder body and the bushing are all interference fit, the press-fitting force required is large, the labor intensity is high, and the production efficiency is low

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