Valve rod automatic checkout device

Abstract

The invention discloses a valve rod automatic checkout device, and belongs to valve rod checkout devices. The valve rod automatic checkout device saves labor, and is efficient and accurate in data. The valve rod automatic checkout device comprises a feeding mechanism, a conveying mechanism, a measurement mechanism, a positioning mechanism and the like; the feeding mechanism is formed by a retainer plate, a splitting air cylinder and a stopping gate plate; the conveying mechanism is formed by a longitudinal guide rail, a longitudinal sliding plate, a first transverse guide rail, a first transverse sliding block, a first lifting air cylinder, a first conveying plate, a second conveying plate, a second positioning plate, a first transverse air cylinder and a first positioning plate; the measurement mechanism is formed by a second transverse guide rail, a second transverse air cylinder, a second lifting air cylinder, a first vertical sliding block, a first motor, a pressing rod shaft, a positioning measuring head and a supporting block; the positioning mechanism is a pneumatic ejection rod. By means of the valve rod automatic checkout device, the labor intensity is reduced, the detection efficiency is improved, the size does not need to be manually marked, and the measurement accuracy is improved.

Description

technical field [0001] The invention relates to a valve stem detection device, in particular to a device capable of automatically detecting parameters such as the valve stem outer diameter, roundness error, taper error, and straightness error. Background technique [0002] At present, measuring tools such as vernier calipers, micrometers, ring gauges or calipers are usually used to detect the outer diameter or geometric dimensions of the valve stem through manual detection, which is not only labor-intensive and inefficient, but also greatly affected by human factors; measurement The result is inaccurate. For this reason, the invention patent application document with the application number "200710304827.1" and the name "a fully automatic valve sorting machine" discloses a valve stem automatic detection device. This patent application uses the principle of inductance measurement for detection, which has the following defects: [0003] 1) The cleanliness of the surface of th...

AI Technical Summary

Problems solved by technology

[0003] 1) The cleanliness of the surface of the workpiece is required to be high, and the surface of the workpiece must be cleaned;

[0004] 2) Multiple pneumatic thimbles and compression drive wheels are used to fix the workpiece, so the workpiece is prone to tilt due to uneven force, which will cause the center line of the valve stem to shift and cause inaccurate measurement data;

[0005] 3) Loading and unloading are all done manually, with high labor intensity and low efficiency;

[0006] 4) The workbench is set at an incline, and the workpiece is fed along the inclined chute by its own weight; although it is relatively simple, a special push-out mechanism is required to transfer the workpiece after the measurement is completed;

[0007] 5) The size of the standard valve stem needs to be manually calibrated before testing, which is inefficient

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