Unlock instant, AI-driven research and patent intelligence for your innovation.

Needle-embedded ultrasonic surface strengthening impacting head suitable for mechanical operation

A surface-strengthening, built-in needle-type technology, applied in the field of metal surface treatment, can solve the problem of being too sensitive to operating external force, and achieve the effect of eliminating random influence, stable load and prolonging service life.

Active Publication Date: 2012-10-10
DALIAN UNIV OF TECH
View PDF18 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the problem that the existing ultrasonic impact gun is too sensitive to the external force of operation and is only suitable for manual hand-held operation, and eliminates the random influence of the external force of operation on the impact effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Needle-embedded ultrasonic surface strengthening impacting head suitable for mechanical operation
  • Needle-embedded ultrasonic surface strengthening impacting head suitable for mechanical operation
  • Needle-embedded ultrasonic surface strengthening impacting head suitable for mechanical operation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Ultrasonic impact strengthening treatment is carried out on the surface of flat workpiece with plasma surfacing alloy coating. use figure 2 , 3The needle-type ultrasonic surface strengthening impact head is hidden in the lower end surface of the plane shown, and the guide sleeve 4 adopts a plane end surface guide sleeve 4-1, and the lower end surface of the plane end surface guide sleeve 4-1 is a plane, and is provided with 19 There are two impact needle guide holes 4C, and each hole is equipped with an impact needle 6 with a diameter of 2 mm. When the assembled impact pin 6 is at rest, under the action of the return spring 5, the upper end of the impact pin 6 contacts the lower end surface of the anvil 10 fixed on the free end of the horn 8, and the lower end is hidden in the lower end surface of the plane end guide sleeve 4-1 , that is, there is a gap of 0-5 μm between the surface of the workpiece 9 to be processed.

[0046] The processed workpiece 9 has a substra...

Embodiment 2

[0050] Ultrasonic shock surface strengthening pretreatment of AISI 304 austenitic stainless steel cylindrical shaft before electrochrome plating. use Figure 4 , 5 The shown circular arc-shaped lower end surface contains a needle-type ultrasonic surface-enhanced impact head, and the guide sleeve 4 adopts an arc-shaped end-face guide sleeve 4-2. surfaces with the same curvature Half cylindrical surface. The arc end face guide sleeve 4-2 is provided with five impact pin guide holes 4C arranged in parallel, and the axis of the impact pin guide holes 4C is perpendicular to the arc end face at the intersection. Each hole is equipped with an impact pin 6 with a diameter of 2 mm. When the assembled impact pin 6 is at rest, under the action of the return spring 5, the upper end of the impact pin 6 contacts the lower end surface of the anvil iron 10 fixed on the free end of the horn 8, and the lower end touches the lower end surface of the guide sleeve 4, that is, the surface of t...

Embodiment 3

[0055] The spherical crown surface of H13 martensitic steel workpiece was subjected to ultrasonic shock surface strengthening pretreatment before nitriding. use Figure 6 The needle-type ultrasonic intensified impact head is hidden in the lower end surface of the cone-top facet as shown, the guide sleeve 4 adopts the cone-top facet guide sleeve 4-3, and the lower end surface of the cone-top facet guide sleeve 4-3 only accommodates one guide hole The facet of the cone top of 4C is designed with an impact needle guide hole 4C along the center line of the cone, and an impact needle 6 with a diameter of 5 mm is installed in the hole. When the assembled impact pin 6 is at rest, under the action of the return spring 5, the upper end of the impact pin 6 contacts the lower end surface of the anvil 10 fixed on the free end of the horn 8, and the lower end contacts the lower end surface of the guide sleeve 4, that is, between the surface of the workpiece 9 to be processed. Leave a gap ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Surface roughnessaaaaaaaaaa
Surface roughnessaaaaaaaaaa
Surface roughnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a needle-embedded ultrasonic surface strengthening impacting head suitable for mechanical operation, and belongs to the technical field of metal surface treatment. The needle-embedded ultrasonic surface strengthening pounding head suitable for the mechanical operation comprises a guide sleeve and an impacting needle, wherein the impacting needle is arranged inside a guide hole on the guide sleeve. The upper end of the impacting needle is contacted with the lower end of an iron block to ensure that the length of the impacting needle inserted into the guide hole is 0 to 5 microns less than the depth of the guide hole. The impacting head can perform uniform ultrasonic strengthening treatment on the workpieces on a plane, a constant-curvature curve and any continuous-curvature curve by cooperating with a mechanically-clamped impacting head motion trail and motion speed control system and a normal tracking automatic control system when mechanically clamped. The needle-embedded ultrasonic surface strengthening impacting head has the main advantages of capability of satisfying mechanical clamping and automatic control requirements as well as suitability for manual hand-held operation.

Description

technical field [0001] The invention relates to a built-in needle type ultrasonic surface strengthening impact head suitable for mechanized operation, which belongs to the technical field of metal surface treatment. Background technique [0002] Shot peening surface treatment is one of the effective means of strengthening the surface of metal materials. The traditional shot peening process usually uses compressed air and mechanical centrifugal force as the power source to accelerate the projectile to bombard the surface of the material. The disadvantages are that the equipment consumes a lot of energy, has dust pollution, takes up a lot of space, and is inconvenient to move and operate. Although the ultrasonic shot peening surface treatment is limited by the equipment structure and power, it is only suitable for surface strengthening of small workpieces, but it overcomes the shortcomings of the traditional shot peening process, and the use of power ultrasonic for surface st...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C21D7/04C21D10/00
Inventor 雷明凯王桂芹潭家隆
Owner DALIAN UNIV OF TECH