阅读说明：本技术 一种用于金属板件表面的微织构加工设备 (Micro-texture processing equipment for surface of metal plate ) 是由 刘晓初 谢鑫成 黄建枫 朱锐 高伟林 萧金瑞 梁忠伟 于 2019-10-18 设计创作，主要内容包括：本发明公开一种用于金属板件表面的微织构加工设备,包括加工箱体、装夹机构以及电磁加速机构,所述加工箱体内设有与待加工金属板件的加工平面的形状相同的内腔,该内腔内设有多个紧密排列的直圆管,所述直圆管的内腔构成加工通道,每个加工通道中均设有用于高速撞击加工的钢珠；所述装夹机构将待加工金属板件装夹固定在加工箱体的顶部；所述电磁加速机构包括脉冲螺旋线圈和脉冲电源,所述脉冲螺旋线圈环绕在加工箱体的外侧壁上；在竖直方向上,所述脉冲螺旋线圈所处的位置位于放置在加工通道中静态下的钢珠的位置之上。该微织构加工设备采用全新的加工技术,具有结构简单、加工成本较低以及加工效率高等优点。(The invention discloses a micro-texture processing device for the surface of a metal plate, which comprises a processing box body, a clamping mechanism and an electromagnetic accelerating mechanism, wherein an inner cavity with the same shape as the processing plane of the metal plate to be processed is arranged in the processing box body; the clamping mechanism clamps and fixes the metal plate to be processed on the top of the processing box body; the electromagnetic accelerating mechanism comprises a pulse spiral coil and a pulse power supply, and the pulse spiral coil is surrounded on the outer side wall of the processing box body; in the vertical direction, the pulse spiral coil is positioned above the position of a steel ball which is placed in a static state in the processing channel. The micro-texture processing equipment adopts a brand-new processing technology, and has the advantages of simple structure, low processing cost, high processing efficiency and the like.)

1. A micro-texture processing device for the surface of a metal plate is characterized by comprising a processing box body, a clamping mechanism and an electromagnetic accelerating mechanism, wherein,

an inner cavity with the same shape as a processing plane of a metal plate to be processed is arranged in the processing box body, a plurality of tightly arranged straight circular tubes are arranged in the inner cavity, the inner cavities of the straight circular tubes form processing channels, and a steel ball for high-speed impact processing is arranged in each processing channel;

the clamping mechanism clamps and fixes the metal plate to be processed at the top of the processing box body, and the processing plane of the metal plate to be processed faces downwards and directly faces to the plurality of processing channels below;

the electromagnetic acceleration mechanism comprises a pulse spiral coil used for generating a magnetic field by electrifying and a pulse power supply used for providing high-voltage pulse current, the pulse spiral coil surrounds the outer side wall of the processing box body, and the direction of the magnetic field formed inside the pulse spiral coil after electrification is the same as the vertical extending direction of the processing channel; in the vertical direction, the pulse spiral coil is positioned above the position of a steel ball which is placed in a static state in the processing channel.

2. The microtexturing apparatus for sheet metal surface according to claim 1, wherein the number of the pulse helical coils is at least two and is wound on the outer sidewall of the processing box along the vertical direction; the pulse spiral coils are connected to a pulse power supply in parallel, and a working switch is arranged in a circuit of each pulse spiral coil.

3. The microtexturing apparatus for the surface of a sheet metal element as claimed in claim 1, wherein at least two steel balls are placed in each machining channel.

4. The microtexturing apparatus for the surface of sheet metal elements according to any one of claims 1 to 3, wherein the steel balls have a diameter of 0.5 to 6 mm.

5. The microtexture processing equipment for the surface of the metal plate part as claimed in claim 4, wherein the clamping mechanism comprises a clamping bracket and a fastening screw, the clamping bracket is positioned at the outer side of the processing box body and is provided with a plurality of clamping channels; in the clamping state, the edge of the metal plate to be processed is placed in the clamping channel, and the fastening screw extends into the clamping channel to fix the metal plate.

6. The microtexturing apparatus for metal plate surfaces according to claim 5, wherein the plurality of clamping channels are located in a plane above the top of the straight circular tube.

7. The microtexturing apparatus for metal plate surface according to claim 5, wherein the bottom of the clamping bracket is fixedly connected with the bottom of the processing box body through a fixing bolt.

8. The microtexturing apparatus for sheet metal surfaces of claim 1, wherein the processing box is made of a non-magnetic material.

Technical Field

The invention relates to workpiece surface processing equipment, in particular to micro-texture processing equipment for the surface of a metal plate.

Background

With the rapid development of modern industrial technology, the requirements of various industries on the safety and reliability performance and the service life of mechanical equipment are higher and higher; generally, various mechanical equipments are composed of a plurality of parts, so the physical and mechanical properties of the parts directly affect the performance and service life of the mechanical equipments. Therefore, in order to improve the mechanical properties of various parts, it is necessary to further perform a strengthening process on the surface of the parts after the parts are molded, and to change the properties of the parts in terms of microstructure.

In the prior art, there are many ways of surface treatment of a workpiece: mechanical grinding, chemical treatment, surface heat treatment, surface spraying and the like, wherein the treatment modes improve the surface mechanical property of the workpiece in different directions and are beneficial to prolonging the service life of the workpiece. Different from the conventional processing technology, the prior art provides a processing technology for texturing the surface of a workpiece, and the surface micro-texturing technology is a processing technology for processing micro-structures such as pits, bulges and the like on the surface of a mechanical part by using a special processing method so as to improve the surface tribological performance of the part; for example, the invention application with application publication number CN 109732200 a discloses a micro-texture laser processing auxiliary device and a micro-texture laser processing method, and the invention patent with publication number CN 104551701B discloses a composite micro-texture guide rail.

In both of the above microtexturing techniques, the microtexture formation requires melting or ablation by laser, wherein there are disadvantages: the micro texture is processed by adopting a laser melting or ablation mode, so that the cost is higher and the processing efficiency is low.

Disclosure of Invention

The invention aims to overcome the existing problems and provides micro-texture processing equipment for the surface of a metal plate, which adopts a brand-new processing technology and has the advantages of simple structure, lower processing cost, high processing efficiency and the like.

The purpose of the invention is realized by the following technical scheme:

a micro-texture processing device for the surface of a metal plate comprises a processing box body, a clamping mechanism and an electromagnetic accelerating mechanism, wherein,

an inner cavity with the same shape as a processing plane of a metal plate to be processed is arranged in the processing box body, a plurality of tightly arranged straight circular tubes are arranged in the inner cavity, the inner cavities of the straight circular tubes form processing channels, and a steel ball for high-speed impact processing is arranged in each processing channel;

the clamping mechanism clamps and fixes the metal plate to be processed at the top of the processing box body, and the processing plane of the metal plate to be processed faces downwards and directly faces to the plurality of processing channels below;

the electromagnetic acceleration mechanism comprises a pulse spiral coil used for generating a magnetic field by electrifying and a pulse power supply used for providing high-voltage pulse current, the pulse spiral coil surrounds the outer side wall of the processing box body, and the direction of the magnetic field formed inside the pulse spiral coil after electrification is the same as the vertical extending direction of the processing channel; in the vertical direction, the pulse spiral coil is positioned above the position of a steel ball which is placed in a static state in the processing channel.

The working principle of the micro-texture processing equipment is as follows:

when the processing box works, the steel balls are respectively arranged in the processing channels of the straight round tubes, and then metal plates to be processed (metal plates, such as valve plates, guide rails and other parts with high requirements on the physical properties of the surfaces) are clamped at the top of the processing box body through the clamping mechanism, so that the surfaces to be processed face downwards and face the processing channels. The pulse power supply is switched on, so that high-voltage pulse current flows through the pulse spiral coil, a strong magnetic field is generated around the pulse spiral coil in the process, and the pulse spiral coil is positioned above the steel ball, so that the magnetic field generated by the pulse spiral coil is equivalent to an invisible strong magnet suspended right above the steel ball, and the steel ball is attracted to move upwards in an accelerated manner.

Furthermore, after being accelerated by magnetic force, the steel balls move upwards at high speed until impacting on the metal plate part positioned at the top of the processing channel, the steel balls respectively impact on different positions of the processing surface of the metal plate part, so that miniature pits are generated at different positions of the surface of the metal plate part at the same time, and the pits form a micro-texture structure.

In addition, before the steel ball is close to the inside of the pulse spiral coil, the power supply is cut off, the magnetic field disappears (the interference of the magnetic field to the steel ball during the rear-section movement is avoided), and at the moment, the steel ball can still move upwards at a high speed until the steel ball impacts the metal plate. After the steel balls impact the metal plate, the steel balls fall down along the machining channel under the action of gravity and rebound force and return to the bottom of the machining channel. Switching on the power supply again to ensure that the steel balls after the falling back obtain the driving force again, move upwards again, impact on the processing surface of the metal plate at a high speed and then fall back again; and circulating in sequence to realize the strengthening processing of the surface of the metal plate until the processing is finished.

In a preferred embodiment of the present invention, at least two pulse spiral coils are arranged and vertically surround the outer side wall of the processing box; the pulse spiral coils are connected to a pulse power supply in parallel, and a working switch is arranged in a circuit of each pulse spiral coil. Above-mentioned structure sets up a plurality of pulse spiral coil that connect in parallel, and in the course of working, from up switching on in proper order down, the magnetic field that generates in proper order can loop through a plurality of electromagnetic fields like this and accelerate the steel ball to reach higher process velocity.

According to a preferable scheme of the invention, at least two steel balls are placed in each machining channel, so that multiple impacts can be realized successively at the same machining position of the surface of the metal plate under single acceleration, and the machining efficiency can be further improved.

Preferably, the diameter of the steel ball is 0.5-6 mm.

According to a preferable scheme of the invention, the clamping mechanism comprises a clamping bracket and fastening screws, wherein the clamping bracket is positioned on the outer side of the processing box body and is provided with a plurality of clamping channels; in a clamping state, the edge of the metal plate to be processed is placed in the clamping channel, and the fastening screw extends into the clamping channel to fix the metal plate; the planes where the clamping channels are located above the tops of the straight circular tubes.

Preferably, the bottom of the clamping bracket is fixedly connected with the bottom of the processing box body through a fixing bolt, so that the whole strengthening processing equipment is more compact in structure.

In a preferred embodiment of the present invention, the processing tank is made of a non-magnetic material. In practical application, aluminum material or other high-strength non-metallic materials can be selected as the material.

Compared with the prior art, the invention has the following beneficial effects:

1. the micro-texture processing equipment can simultaneously carry out micro-texture processing on the whole processing surface of the metal plate and has higher efficiency.

2. The invention adopts a brand new processing technology, and the steel ball can obtain a huge function to impact the metal plate by the acceleration of the electromagnetic field, so that a micro pit is generated on the processing surface, and the processing cost is lower and the manufacturing cost of equipment is not high.

3. Due to the fixed processing channel, different steel balls are responsible for processing at different positions, and the expected effect and a relatively uniform micro-texture structure can be directly obtained.

4. Compared with the laser melting or ablation mode, the processing equipment provided by the invention can process microtexture on the surface of the sheet metal part, and can obtain the following good technical effects: because the steel balls impact the surface of the metal plate at a high speed to generate the micro pits in an extrusion mode, in the process of gradually forming the pits, the steel balls and the positions nearby can generate residual stress layers under the action of extrusion, and based on the residual stress layers, the performances of hardness, corrosion resistance and the like of the surface of the metal plate can be improved.

5. Besides the surface micro-texture processing, the equipment can also be used for carrying out maintenance work such as cleaning and derusting on the surface of the metal plate, and simultaneously, the hardness of the surface of the metal plate is improved, the corrosion resistance effect of the metal plate is improved, and the wear resistance of the metal plate is improved.

Drawings

Fig. 1 to 3 are sectional views of one embodiment of the microtexture processing apparatus for metal plate surface according to the present invention, in which fig. 1 is a sectional view of a lower pulse spiral coil that is energized to attract a steel ball to move upward; FIG. 2 is a cross-sectional view of the steel ball positioned inside the lower pulse spiral coil, at which time the lower pulse spiral coil is powered off and the upper pulse spiral coil is powered on; fig. 3 is a cross-sectional view of the steel ball striking the surface of the sheet metal part ready for dropping, when both pulse spiral coils are de-energized.

Fig. 4 is a schematic perspective view of one embodiment of the microtexturing apparatus for metal plate surface according to the present invention.

Fig. 5 is a cross-sectional view of another embodiment of the microtexturing apparatus for sheet metal surfaces of the present invention.

Detailed Description

In order to make those skilled in the art understand the technical solutions of the present invention well, the following description of the present invention is provided with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.