Rivet mandrel testing device

Abstract

The invention relates to a rivet mandrel testing device. An upper tension connection body is fixed on an upper fixing frame; a rivet mounting frame is mounted on the upper fixing frame; a lower tension connection body is fixed on a lower connection base; a limiting outer barrel is mounted on the lower connection base; three or more than three clamping jaw fixing bases are arranged inside the limiting outer barrel; the outer wall faces of the clamping jaw fixing bases are outer cylindrical faces; the outer wall faces of the clamping jaw fixing bases are matched with the middle section of the inner wall face of the limiting outer barrel; a fall-down channel is formed on the inner wall face of each clamping jaw fixing base; a clamping jaw is fixed at the top end part of each clamping jaw fixing base; the outer wall faces of the clamping jaws are outer conical faces; the inner wall faces of the clamping jaws are inclined tooth surfaces; and the outer wall faces of the clamping jaws are matched with the upper section of the inner wall face of the limiting outer barrel. According to the rivet mandrel testing device provided by the invention, the clamping jaws are tightly clamped in a radius direction in a firm and non-loose manner, so that test data is more accurate; and the rivet mandrel testing device provided by the invention has the advantages of energy conversation and environmental friendliness, simplicity and convenience in operation, automatic collection of waste materials, low noise and good cleaning and environment-protection effects.

Description

technical field [0001] The invention relates to a rivet core testing device, which belongs to the technical field of mechanical processing inspection and testing devices. Background technique [0002] Special rivets, also known as structural rivets, are produced from various special materials, and the processing is complicated, especially each performance test is very important. If there is an error, it will affect the quality, resulting in waste of waste and raw materials. The nail core is clamped by two pieces of silk board, which is only suitable for ordinary nail cores and low-tension nails, but for stainless steel materials and high-strength special rivet cores, it is easy to slip and cannot be clamped, resulting in incorrect test data and misjudgment , and is easy to be damaged, the wire board is often replaced, the cost is high, it is difficult to control the correctness of the test data, and it is not suitable for mass production. Contents of the invention [0003...

AI Technical Summary

Problems solved by technology

[0002] Special rivets, also known as structural rivets, are produced from various special materials, and the processing is complicated, especially each performance test is very important. If there is an error, it will affect the quality, resulting in waste of waste and raw materials. The nail core is clamped by two pieces of silk board, which is only suitable for ordinary nail cores and low-tension nails, but for stainless steel materials and high-strength special rivet cores, it is easy to slip and cannot be clamped, resulting in incorrect test data and misjudgment , and is easy to be damaged, the silk board is often replaced, the cost is high, it is difficult to control the correctness of the test data, and it is not suitable for mass production

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