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Ultrasonic pressed-in nut

An ultrasonic and nut technology, applied in the direction of nuts, threaded fasteners, connecting components, etc., can solve the problems of small tension, easy falling off, and nut damage.

Inactive Publication Date: 2010-11-03
SUZHOU INDAL PARK XINKAI PRECISION FASTENERSCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The knurling of most ultrasonic nuts on the market is straight, for such nuts, it is easy to fall off, and the tensile force in the axial direction is very small
Existing threads, once tapped to the bottom when tapping, it is easy to damage the threads of the nut when it is matched with the bolt in the future, and the ultrasonic nut cannot work effectively

Method used

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  • Ultrasonic pressed-in nut
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  • Ultrasonic pressed-in nut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] figure 1 and figure 2 Shown is an ultrasonic press-in nut, which is a hollow cylinder 1 with knurling 3 on the outer surface of the hollow cylinder 1 and threads 2 on the inner surface. The knurling 3 is inclined. The inclination of the knurling 3 is 25-30°, and the bearing force in the axial direction is greater, and it is not easy to fall off. One end of the hollow cylinder 1 has a countersunk 4, which can be placed in the countersunk hole to make the surface more smooth and not prominent. The end of the thread is provided with a small step 5, in order to protect the thread of the inner hole from being damaged.

[0013] Preheat the ultrasonic press-in nut and press it in. It can be rotated when it is pressed in. Press the countersunk 4 into the countersunk hole, and the bolt can be connected to the internal thread 2. When pressing in, the temperature control of the ultrasonic wave, the length of heating time, the speed of pressing in, the calculation of the interf...

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Abstract

The invention relates to an ultrasonic pressed-in nut which is a hollow cylinder with knurl on the external surface and thread on the internal surface, wherein the knurl is tilted, and the slope of the knurl is 25-30 degrees; a countersunk head is arranged at one end of the hollow cylinder; and a small step is arranged on the thread end part. When the ultrasonic pressed-in nut is pressed in, the ultrasonic pressed-in nut can rotate; because the knurl is tilted in a certain angle, the knurl can bear larger axial tension; and the thread end part is provided with the step which can protect the thread from being damaged.

Description

technical field [0001] The invention relates to a nut, in particular to an ultrasonic press-in nut. Background technique [0002] Ultrasonic nuts are widely used, mainly used in technology products with plastic casings such as electrical appliances and home appliances. The knurling of most ultrasonic nuts on the market is straight, for such nuts, it is easy to fall off, and the tensile force in the axial direction is very small. Existing threads, once tapped to the bottom when tapping, will easily damage the threads of the nut when it is matched with the bolt in the future, and the ultrasonic nut will not be able to work effectively. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an ultrasonic press-in nut that can bear a large axial tensile force and whose thread is not easily damaged. [0004] The technical solution adopted by the present invention to solve the technical problem is: a nut pressed in by ultra...

Claims

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Application Information

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IPC IPC(8): F16B37/00
Inventor 管建伟
Owner SUZHOU INDAL PARK XINKAI PRECISION FASTENERSCO
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