Special fixture for curtain wall door and window metal heat insulation section bar tensile test

Abstract

Disclosed is a dedicated clamp for curtain wall doors and windows metal insulated profile tensile tests; the upper clamp is shaped as an inverted T; the upper part of the clamp is rotatably connected with a suspended frame through a pin shaft and a lathe dog; the top part of the suspended frame is connected with an upper screw rod and an adjusting handwheel; the two shoulder parts of the upper clamp are connected with a pair of replaceable upper clamping plates which are shaped as an inverted T; a triangular jack is arranged on each upper clamping plate; the triangular jack is matched and insertedly connected with a triangular bolt; one end of the triangular bolt is provided with a pin head; the cross-section of the insertion rod of the bolt is a triangle corresponding to the triangular jack; the lower clamp is T-shaped; the bottom part of the lower clamp is connected with a lower screw rod and an adjusting handwheel; both shoulder parts of the lower clamp are connected with a pair of replaceable lower clamping plates; a triangular jack is arranged on each lower clamping plate; and the triangular jack is matched and insertedly connected with the triangular bolt. The invention solves the problem that the traditional clamp models are not universal and is easy and fast to use; besides, the invention effectively fixes the location of the profiles and enables the upper clamp and the lower clamp to be in the same vertical line to ensure the vertical alignment of the upper clamp and the lower clamp so as to guarantee the accuracy of the test data.

Description

technical field [0001] The invention relates to a special clamp for clamping door and window profiles for testing. Background technique [0002] The forms of aluminum alloy heat insulation profiles for doors and windows vary greatly, which brings troubles to profile inspection and testing. Every time a new profile type is added, the fixture must be reprocessed. Many manufacturers and users have to process many fixtures in order to carry out corresponding tests. This creates a lot of waste. [0003] In addition, the original fixture uses circular bolts to reinforce the upper and lower parts. Since the inner width of the upper and lower parts of the aluminum alloy heat-insulating profile is often larger than the diameter of the bolt, the bolt will slip and deviate during the test process, causing the specimen to fall to one side. And so on, so it can't effectively ensure the accuracy and fairness of the test. [0004] In addition, when the upper and lower fixtures are misali...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a special fixture for the tensile test of metal insulation profiles for curtain walls, doors and windows. During the process, there will be technical problems such as the phenomenon that the bolt slides and deviates, causing the test piece to fall to one side. It is also necessary to solve the problem that the upper and lower parts of the aluminum alloy heat-insulating profile will be offset due to the misalignment of the upper and lower fixtures.

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