High-precision wedge-shaped pressure detection equipment

Abstract

The invention discloses high-precision wedge-shaped pressure detection equipment. The high-precision wedge-shaped pressure detection equipment comprises a rack, a force application mechanism, a forcevalue measurement and control device and a safety limiting mechanism; the rack is composed of a bottom plate, a worktable plate, an upper cross beam, four support columns and four large upright columns; a transmission shaft is vertically arranged in the rack and penetrates through the worktable plate, and the transmission shaft is provided with an external thread; a bearing seat is mounted on thelower portion of the worktable plate; a rotary first-stage belt wheel is mounted in the bearing seat and is in threaded connection with the transmission shaft; the upper end of the transmission shaftis connected with a middle cross beam; the upper portion of the middle cross beam is connected with a tool clamp of a lower wedge-shaped press block; the middle cross beam is movably connected with alinear smooth shaft arranged between the upper cross beam and the worktable plate; a driving mechanism is connected with the first-stage belt wheel through a synchronous belt; a load sensor is arranged on the upper portion of the upper cross beam; the upper end of an upper press connection seat is connected with the load sensor, and the lower end of the upper press connection seat is connected with an upper wedge-shaped press block; and the safety limiting mechanism comprises a limiting slide rod, a plurality of blocking rings arranged on the limiting slide rod, and a microswitch.

Description

technical field [0001] The invention relates to a high-precision wedge pressure detection device, which is mainly used for testing the wedge pressure strength of metal materials and belongs to the technical field of testing machines. Background technique [0002] Tensile strength is an important performance index of materials. Due to the size of the sample and the geometric shape of the finished product required by the standard for many tensile tests, the sampling cannot be obtained on the finished product. As a result, there are differences between the sample material and the finished product, and it is impossible to accurately express whether the finished material meets the quality requirements. Therefore, the wedge pressure test method is adopted. This test method is a fracture test used in a static process, similar to the tensile strength test. Install two wedges on a special device, and the sample is sandwiched between the two wedges. The upper and lower pressure acti...

AI Technical Summary

Problems solved by technology

The test device has defects such as low transmission precision and low test precision, which affect the test results of the sample

In addition, the test device also has defects such as the difficulty in ensuring the parallelism of the upper and lower wedging blades, the inaccurate placement of the sample, and the lack of pre-pressure of the sample that affects the test.

Images