CN210132222U

CN210132222U - Electric auxiliary ultrasonic surface rolling strengthening device

Info

Publication number: CN210132222U
Application number: CN201920237342.3U
Authority: CN
Inventors: 李乃明; 纪仁杰; 成中标
Original assignee: JIANGSU FORGED PIPE FITTINGS CO Ltd
Current assignee: JIANGSU FORGED PIPE FITTINGS CO Ltd
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2020-03-10
Anticipated expiration: 2029-02-25

Abstract

The utility model discloses a surface rolling strengthening device, which comprises a machine tool component and an electric auxiliary ultrasonic rolling component, wherein the machine tool component comprises a bottom plate, a side plate, a chuck and a slider sliding rail set, the electric auxiliary ultrasonic rolling component comprises an electric auxiliary component, an ultrasonic rolling component, a cylinder sliding block component, a supporting frame and a connecting plate, the ultrasonic rolling component comprises an ultrasonic generator, an ultrasonic transducer, a vibration head amplitude transformer and a vibration head ball, the electric auxiliary component comprises a high-voltage carbon brush, a carbon brush frame and an insulating cushion block, the machine tool component can clamp a pipe fitting to drive the pipe fitting to rotate, the electric auxiliary component and the ultrasonic rolling component of the electric auxiliary ultrasonic rolling component can well contact the pipe fitting, the electric auxiliary ultrasonic surface rolling treatment can be carried out on the pipe fitting, the plasticity of the pipe fitting is improved and the deformation resistance is reduced under the mutual influence of the electric plasticity and the joule heat, the depth of the surface treatment strengthening layer is increased, the surface corrosion resistance is increased, the method is reliable, and the treatment cost is low.

Description

Electric auxiliary ultrasonic surface rolling strengthening device

Technical Field

The utility model belongs to the field of material surface treatment, in particular to a surface rolling strengthening device and a method for treating a high-pressure reducing pipe by using the same.

Background

The surface strengthening technology can change the surface appearance, surface chemical components, surface stress state and tissue structure of metal and nonmetal workpieces, and improve the surface roughness, corrosion resistance, wear resistance and comprehensive mechanical property of the workpieces.

The currently common surface strengthening techniques include rolling, shot blasting, laser shock, surface mechanical grinding, and the like. The laser shock method is characterized in that a large-value residual compressive stress and microstructure change are formed on the surface layer of a metal material by utilizing the mechanical effect of high-instantaneous-energy-density laser shock waves, so that nano grains can be obtained on the surface of the metal material. However, the nanocrystalline layer generated by the method is thin, the nanocrystalline layer is usually smaller than 1 micron, the subsequent use performance of the material is influenced, an absorption layer and a constraint layer need to be added on the surface of the processed material, and the process is complex. The traditional rolling treatment has high rigidity and great damage to the precision of a machine tool transmission guide rail and a precision servo motor.

With the development of ultrasonic technology, ultrasonic and rolling processing are combined, and surface strengthening technology is further developed. The high-pressure forged reducer is suitable for various severe working conditions, and high-strength and high-hardness materials are usually selected and subjected to heat treatment processes of different degrees. However, for materials subjected to heat treatment or materials with higher hardness and poorer plasticity, the simple ultrasonic mechanical rolling process has many problems, such as the requirement of higher static pressure, the incapability of ensuring the roughness and corrosion resistance of the processed surface, the formed metal surface strengthening layer is thin, the same surface needs to be repeatedly treated for many times, the processing efficiency is low, certain high-strength and high-hardness alloys still cannot be processed after the static pressure is increased, and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the utility model provides the following technical scheme:

a surface rolling strengthening device comprises a machine tool assembly and an electric auxiliary ultrasonic rolling assembly, wherein the machine tool assembly comprises a bottom plate, a side plate, a chuck and a slider sliding rail set, the bottom plate is horizontally arranged, the side plate is perpendicular to the bottom plate and is connected with one end of the bottom plate, the side plate is provided with a round hole, the chuck is connected with the side plate through the round hole, the chuck can do circular motion by taking the round hole as an axis, the middle part of the chuck is provided with a clamping part which can clamp a pipe fitting, the slider sliding rail set can slide on the bottom plate, the electric auxiliary ultrasonic rolling assembly comprises an electric auxiliary part, an ultrasonic rolling part, a cylinder sliding block part, a support frame and a connecting plate, the connecting plate connects the support frame with the slider sliding rail set, the support frame is provided with a third sliding rail, the cylinder sliding block assembly is composed of a cylinder and a third sliding block, and the third sliding block can slide on the third sliding rail under, the ultrasonic rolling component comprises an ultrasonic generator, an ultrasonic transducer, a vibrating head amplitude transformer and a vibrating head ball, the ultrasonic generator is fixed on the third sliding block, one end of the ultrasonic transducer is connected with the ultrasonic generator and extends out of the third sliding block along the direction of the third sliding rail, one end of the vibration head amplitude transformer is connected with the other end of the ultrasonic transducer, the other end of the vibration head amplitude transformer is provided with a vibration head ball, the electric auxiliary component comprises a high-voltage carbon brush, a carbon brush holder and an insulating cushion block, the round hole of the side plate extends to the support frame along the direction vertical to the third slide rail and punctures the support frame to form a support frame hole, the insulating cushion blocks are arranged along the circumference of the support frame hole, the two high-voltage carbon brushes are symmetrically arranged at the two sides of the support frame hole, the carbon brush frame is arranged between the insulating cushion block and the high-voltage carbon brush and plays a supporting role for the high-voltage carbon brush.

Further, the slider slide rail group comprises a first slide rail, a first slider, a second slide rail and a combined slider, the first slide rail is arranged on the bottom plate and is perpendicular to the intersection line of the side plate and the bottom plate, the first slider can slide along the first slide rail, the second slide rail is arranged at the top of the first slider, the second slide rail is perpendicular to the first slide rail, the combined slider can slide along the second slider, and the support frame is connected with the combined slider through the connecting plate.

Further, the vibration head ball is a silicon carbide ball.

Further, the diameter of the silicon carbide ball is 6 mm.

The surface rolling strengthening device is characterized in that the high-pressure reducing pipe is clamped by the chuck and can rotate at a certain speed under the drive of the chuck, the machine tool assembly can adjust the position of the electric auxiliary ultrasonic rolling assembly to enable the high-pressure reducing pipe to be concentric with the support frame hole, the machine tool assembly can push the electric auxiliary ultrasonic rolling assembly along the axial direction of the high-pressure reducing pipe at a certain feeding speed, the two high-pressure carbon brushes are respectively connected with the positive electrode and the negative electrode of a high-pressure pulse power supply, the high-pressure pulse power supply provides auxiliary pulse current for the high-pressure carbon brushes, meanwhile, an ultrasonic generator generates ultrasonic waves, the ultrasonic waves are transmitted to a vibration head ball at a certain frequency and amplitude through an ultrasonic transducer and a vibration head amplitude changing rod, the air cylinder pushes the ultrasonic rolling part at a certain output pressure, the vibration head ball is pressed on the surface of the high-pressure forged reducing pipe at a certain pressure, and, the vibration head ball and the high-pressure carbon brush form electric auxiliary ultrasonic surface rolling strengthening for the high-pressure forged tapered pipe.

Under the mutual influence of electro-plasticity and Joule heat, the surface treatment strengthening layer depth is increased, the surface corrosion resistance is increased, the repeated treatment passes are few, the processing efficiency is high, no chemical element needs to be added additionally, the processing process is pollution-free, the method is reliable, and the processing cost is low.

The device has the advantages of convenient use, high surface treatment efficiency, good effect and wide application range, and is suitable for the surface treatment of various high-pressure forged reducers.

Drawings

FIG. 1 is an isometric view of a surface roll strengthening device processing a high pressure forged reducer;

FIG. 2 is an isometric view of an electrically assisted ultrasonic rolling assembly and a high pressure forged reducer;

fig. 3 is a schematic view of a machine tool assembly.

In the figure: the ultrasonic vibration generator comprises a bottom plate-1, a side plate-2, a chuck-3, a first slide rail-4, a first slide block-5, a combined slide block-6, a support frame-7, a third slide rail-8, a cylinder-9, a cylinder push rod-10, a cylinder connecting block-11, a third slide block-12, an ultrasonic generator-13, an ultrasonic transducer-14, a vibrating head amplitude transformer-15, a vibrating head ball-16, a high-voltage carbon brush-17, a carbon brush holder-18, an insulating cushion block-19, a high-voltage forged reducer-20, a connecting plate-21 and a second slide rail-22.

Detailed Description

In order to make the technical means and features of the present invention easier to understand, the present invention will be further explained below with reference to the following embodiments.

Referring to fig. 1, a surface rolling strengthening device comprises a machine tool assembly and an electrically-assisted ultrasonic rolling assembly, referring to fig. 3, the machine tool assembly comprises a bottom plate 1, a side plate 2, a chuck 3 and a slider slide rail set, the bottom plate 1 is horizontally arranged, the side plate 2 is perpendicular to the bottom plate 1 and is connected with one end of the bottom plate 1, the slider slide rail set comprises a first slide rail 4, a first slide block 5, a second slide rail 22 and a combined slide block 6, the first slide rail 4 is arranged on the bottom plate 1 and is perpendicular to the intersection line of the side plate 2 and the bottom plate 1, the first slide block 5 can slide along the first slide rail 4, the top of the first slide block 5 is provided with the second slide rail 22, the second slide rail 22 is perpendicular to the first slide rail 4, the combined slide block 6 can slide along the second slide block 22, the side plate 2 is provided with a circular hole, the chuck 3 is connected with the side plate 2 through the circular hole, and the chuck 3 can do circular, the middle part of the chuck 3 is provided with a clamping part which can clamp a pipe fitting, referring to fig. 2, the electric auxiliary ultrasonic rolling component comprises an electric auxiliary component, an ultrasonic rolling component, a cylinder slider component, a support frame 7 and a connecting plate 21, the support frame 7 is connected with the combined slider 6 by the connecting plate 21, the support frame 7 is provided with a third slide rail 8, the cylinder slider component comprises a cylinder 9 and a third slider 12, the third slider 12 can slide on the third slide rail 8 under the pushing of the cylinder 9, the ultrasonic rolling component comprises an ultrasonic generator 13, an ultrasonic transducer 14, a vibration head amplitude transformer 15 and a vibration head ball 16, the ultrasonic generator 13 is fixed on the third slider 12, one end of the ultrasonic transducer 14 is connected with the ultrasonic generator 13 and extends out of the third slider 12 along the direction of the third slide rail 8, one end of the vibration head amplitude transformer 15 is connected with the other end of the ultrasonic transducer 14, the other end of vibration head amplitude transformer 15 is equipped with vibration head ball 16, vibration head ball 16 is diameter 6 mm's carborundum ball, electricity auxiliary component includes high-pressure carbon brush 17, carbon brush frame 18 and insulating pad 19, the round hole of curb plate 2 extends to support frame 7 and punctures support frame 7 and form the support frame hole along the direction perpendicular with third slide rail 8, insulating pad 19 sets up along support frame hole border, high-pressure carbon brush 17 sets up two and the symmetry sets up the both sides in the support frame hole, carbon brush frame 18 sets up plays the supporting role to high-pressure carbon brush 17 between insulating pad 19 and high-pressure carbon brush 17.

Installing the high-pressure forged reducer 20 on a chuck 3, wherein the chuck 3 can drive the high-pressure forged reducer 20 to rotate, adjusting the relative position of the high-pressure forged reducer 20 by adjusting the sliding of a first sliding block 5 on a first sliding rail 4, accurately passing the high-pressure forged reducer 20 through a support frame hole, connecting two high-pressure carbon brushes 17 with the positive and negative electrodes of a high-pressure pulse power supply respectively, adjusting the position of a support frame 7 by adjusting the sliding of a combined sliding block 6 on a second sliding rail 22, making the high-pressure forged reducer 20 concentric with the support frame hole, adjusting the position of the high-pressure carbon brush 17, making the high-pressure carbon brush 17 well contact with the high-pressure forged reducer 20, adjusting the pressure introduced into a cylinder 9, transmitting the pressure to a third sliding block 12 through a cylinder connecting block 11 by extending a cylinder push rod 10 by the cylinder 9, and finally making a vibration head ball 16 well contact with the high-pressure forged.

Adjusting the machine tool rotating speed of the chuck 3 driving the high-pressure forged reducer 20, adjusting the sliding speed of the first sliding block 5 on the first sliding rail 4, namely the feeding speed of the machine tool, turning on the ultrasonic generator 13 and the high-energy pulse power supply, enabling the auxiliary pulse current to pass through the high-pressure carbon brush 17 at a certain frequency and current, transmitting the ultrasonic generated by the ultrasonic generator 13 to the vibrating head ball 16 through the ultrasonic transducer 14 and the vibrating head amplitude transformer 15 at a certain vibration frequency and amplitude, at the moment, being in an initial state, driving the electric auxiliary ultrasonic surface rolling and strengthening device to axially move along the high-pressure forged reducer 20 by the machine tool, processing the surface of the high-pressure forged reducer 20, recovering the device to the initial state after one-time processing is finished, and repeatedly processing the same surface for multiple times.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification or equivalent replacement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A surface rolling strengthening device is characterized by comprising a machine tool component and an electric auxiliary ultrasonic rolling component, wherein the machine tool component comprises a bottom plate, a side plate, a chuck and a slide block slide rail group, the bottom plate is horizontally arranged, the side plate is perpendicular to the bottom plate and is connected with one end of the bottom plate, the side plate is provided with a round hole, the chuck is connected with the side plate through the round hole, the chuck can do circular motion by taking the round hole as an axis, the middle part of the chuck is provided with a clamping part which can clamp a pipe fitting, the slide block slide rail group can slide on the bottom plate, the electric auxiliary ultrasonic rolling component comprises an electric auxiliary component, an ultrasonic rolling component, an air cylinder slide block component, a support frame and a connecting plate, the support frame is connected with the slide block slide rail group, the support frame is provided with a third slide rail, the air cylinder slide block component is composed of an air, the third sliding block can slide on a third sliding rail under the pushing of the air cylinder, the ultrasonic rolling component comprises an ultrasonic generator, an ultrasonic transducer, a vibrating head amplitude transformer and a vibrating head ball, the ultrasonic generator is fixed on the third sliding block, one end of the ultrasonic transducer is connected with the ultrasonic generator and extends out of the third sliding block along the direction of the third sliding rail, one end of the vibrating head amplitude transformer is connected with the other end of the ultrasonic transducer, the other end of the vibrating head amplitude transformer is provided with the vibrating head ball, the electric auxiliary component comprises a high-voltage carbon brush, a carbon brush holder and an insulating cushion block, a round hole of the side plate extends to the supporting frame along the direction perpendicular to the third sliding rail and breaks through the supporting frame to form a supporting frame hole, the insulating cushion block is arranged along the circumference of the supporting frame hole, the two high-voltage carbon brushes are symmetrically arranged on two sides of the supporting frame hole, the carbon brush frame is arranged between the insulating cushion block and the high-voltage carbon brush and plays a supporting role for the high-voltage carbon brush.

2. The surface rolling strengthening device of claim 1, wherein the slider rail set is composed of a first rail, a first slider, a second rail and a combined slider, the first rail is disposed on the bottom plate and perpendicular to the intersection line of the side plate and the bottom plate, the first slider can slide along the first rail, the second rail is disposed on the top of the first slider, the second rail is perpendicular to the first rail, the combined slider can slide along the second rail, and the connecting plate connects the supporting frame and the combined slider.

3. The surface roll peening apparatus of claim 2, wherein the vibrating head balls are silicon carbide balls.

4. The surface roll strengthening device of claim 3, wherein the silicon carbide balls have a diameter of 6 mm.