CN110722460A - Electromagnetic reinforced grinding equipment for processing surface of metal plate - Google Patents
Electromagnetic reinforced grinding equipment for processing surface of metal plate Download PDFInfo
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- CN110722460A CN110722460A CN201910998678.6A CN201910998678A CN110722460A CN 110722460 A CN110722460 A CN 110722460A CN 201910998678 A CN201910998678 A CN 201910998678A CN 110722460 A CN110722460 A CN 110722460A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
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Abstract
The invention discloses an electromagnetic reinforced grinding device for processing 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 a processing plane of a workpiece to be processed is arranged in the processing box body, and the inner cavity forms a processing channel; the clamping mechanism clamps and fixes a workpiece to be processed at the top of the processing box body, so that a processing plane of the workpiece faces downwards and faces towards the processing channel; the electromagnetic acceleration mechanism comprises a pulse spiral coil and a pulse power supply, the pulse spiral coil surrounds the outer side wall of the processing box body, and the magnetic field inside the pulse spiral coil after being electrified is the same as the vertical extending direction of the processing channel; in the vertical direction, the pulse spiral coil is located above the position of the grinding steel ball which is placed in the machining channel in a static state. The electromagnetic reinforced grinding equipment can be used for simultaneously processing the whole processing surface of a workpiece, and has higher processing efficiency; in the actual processing process, the danger is less.
Description
Technical Field
The invention relates to a metal piece reinforced grinding processing device, in particular to electromagnetic reinforced grinding equipment for processing 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 perform a strengthening process after the parts are molded, and to change the properties of the parts in terms of microstructure.
In the prior art, there are many techniques for processing the surface of a workpiece, wherein shot peening type peening is a processing means that a workpiece (for example, a part with a high requirement on the physical properties of the surface, such as an airplane wing, an airplane wall plate, a valve plate, a guide rail, etc.) is impacted by a high-speed steel ball or a steel shot, and a residual stress layer is generated on the surface of the workpiece, so that the properties of the surface of the workpiece can be greatly improved. For example, patent application No. CN 102909660B discloses a shot peening apparatus in which steel shots are mixed by high-pressure gas, delivered to a blast gun, and then ejected from the blast gun at high speed toward a workpiece. The shot peening apparatus can automatically perform shot peening on the surface of a workpiece, and has good machining efficiency and applicability.
But the following disadvantages exist at the same time:
1. in the shot peening device, the abrasive (such as steel balls and the like) is mainly conveyed and accelerated by high-pressure gas, so that the abrasive (such as steel balls and the like) can be ejected from the nozzle at high speed to form fixed point type collision, if the position of the nozzle is not changed, a workpiece needs to be driven to move relative to the nozzle, and the surface to be processed of the workpiece needs to be moved to the front of the nozzle to be impacted.
2. The driving mode of the reinforced grinding machine is pneumatic, in the practical application process, high-pressure equipment is required to provide high-pressure gas, grinding materials are conveyed circularly through a pipeline, and during the processing period, great attention is required to prevent potential safety hazards.
Disclosure of Invention
The invention aims to overcome the existing problems and provides an electromagnetic reinforced grinding device for processing the surface of a metal plate, which can process the whole processing surface of the metal plate at the same time and has higher processing efficiency; and in the actual processing process, the danger is less.
The purpose of the invention is realized by the following technical scheme:
an electromagnetic reinforced grinding device for processing 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 the processing plane of the workpiece to be processed is arranged in the processing box body, and the inner cavity forms a processing channel; the clamping mechanism clamps the edge of the workpiece to be processed on the top of the processing box body in a mode of fixing the edge, and the processing plane of the workpiece to be processed faces downwards and is right opposite to the processing channel;
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 the grinding steel ball which is placed in a static state in the processing channel.
The working principle of the electromagnetic reinforced grinding equipment is as follows:
when the processing box works, the grinding steel balls are firstly uniformly and flatly laid at the bottom of the processing channel, and then a workpiece to be processed (metal plates, such as parts with high requirements on the physical properties of the surfaces of airplane wings, airplane wall plates, valve plates, guide rails and the like) is clamped at the top of the processing box body through the clamping mechanism, so that the surface to be processed faces downwards and faces the processing channel. 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 grinding steel balls, and the direction of the internal magnetic field is the same as the vertical extending direction of the processing channel, so that the magnetic field in the processing channel is equivalent to an invisible strong magnet suspended right above the grinding steel balls and attracts the grinding steel balls to move upwards in an accelerated manner.
Further, the grinding steel balls move upwards at a high speed after being accelerated by magnetic force until impacting on the workpiece positioned at the top of the processing channel, and the plurality of grinding steel balls respectively impact on different positions of the processing surface of the workpiece, so that a strengthened grinding layer is gradually formed. When the grinding 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 on the grinding steel ball during the rear-section movement is avoided), and at the moment, the grinding steel ball can still move upwards at a high speed until the grinding steel ball impacts a workpiece. After the grinding steel balls impact the workpiece, the grinding 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 milled steel balls after the back-off obtain the driving force again, moving upwards again, impacting on the processing surface of the workpiece at a high speed, and then falling back again; and circulating in sequence to realize the strengthening processing of the surface of the workpiece 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 coil is connected to a pulse power supply in parallel. 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 grinding steel ball to reach higher process velocity.
In a preferred embodiment of the present invention, the grinding steel balls are uniformly spread at the bottom of the processing channel in a static state, and the number of overlapped layers is not more than two. In the optimization, the reasonable quantity of the grinding steel balls is set, so that the bottom of the processing channel can be uniformly paved, the effect of simultaneous processing is achieved, the motion interference among the grinding steel balls can be avoided, and the idle work is performed.
Preferably, the diameter of the grinding 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 the clamping state, the edge of the workpiece to be machined is placed in the clamping channel, and the fastening screw extends to the clamping channel to fix the workpiece.
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 electromagnetic reinforced grinding equipment can be used for processing the whole processing surface of a workpiece at the same time, and has higher efficiency.
2. The invention adopts the magnetic field generated by current as power to drive the grinding steel balls to upwards impact on the processing surface of a workpiece at high speed, and the grinding steel balls can move up and down circularly in the processing channel, thereby realizing the simplest and smallest crossing circular processing path without the assistance of a conveying pipeline, an injection head and the like, and further realizing circular processing and having the advantages of simple structure, small equipment size and the like.
3. Compared with the traditional high-pressure type gas injection driving mode, the high-pressure type gas injection driving device has the characteristics of being more direct and more stable through the magnetic field force generated by the current, can provide more power for grinding steel balls, and meets the requirements of some occasions needing high-strength processing.
4. Because the grinding steel balls are uniformly and flatly laid in the processing channel, after the grinding steel balls are accelerated by the electromagnetic field, the whole grinding steel balls move upwards simultaneously, and the whole processing surface of the workpiece is processed, the efficiency is higher, and a strengthening layer with uniform effect can be obtained.
5. Besides the strengthening grinding processing, the equipment can also be used for carrying out maintenance work such as cleaning and derusting on the surface of a workpiece, and simultaneously improving the hardness of the surface of the workpiece, the corrosion resistance effect of the workpiece and the wear resistance of the workpiece.
Drawings
Fig. 1 is a cross-sectional view of one embodiment of the electromagnetic enhanced grinding apparatus for processing the surface of a metal plate member in the present invention.
Fig. 2 is a cross-sectional view of another embodiment of the electromagnetic enhanced grinding apparatus for processing the surface of a metal plate member in accordance with 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.
Example 1
Referring to fig. 1, the electromagnetic reinforced grinding apparatus for processing the surface of a sheet metal part in this embodiment includes a processing box 1, a clamping mechanism and an electromagnetic accelerating mechanism, wherein an inner cavity (in this embodiment, a square sheet metal part a is taken as an example) which is the same as the processing plane of the sheet metal part a to be processed and has a hollow structure is arranged in the processing box 1, and the inner cavity forms a processing channel; the clamping mechanism clamps and fixes a to-be-machined metal plate part a at the top of the machining box body 1, a machining plane of the to-be-machined metal plate part a faces downwards and is right opposite to the machining channel, and grinding steel balls for performing impact machining on the surface of the metal plate part are randomly distributed at the bottom of the machining channel in a non-working state; the electromagnetic acceleration mechanism comprises a pulse spiral coil 2 used for generating a magnetic field by electrifying and a pulse power supply used for providing high-voltage pulse current, wherein the pulse spiral coil 2 is wound on the outer side wall of the processing box body 1, and the direction of the magnetic field formed inside the pulse spiral coil 2 after the pulse spiral coil is electrified is the same as the vertical extending direction of the processing channel; in the vertical direction, the pulse spiral coil 2 is located above the position of a grinding steel ball (in the present embodiment, a magnetic metal ball) placed in a machining passage in a static state.
Referring to fig. 1, the grinding steel balls are uniformly laid at the bottom of the processing channel in a static state, and the number of overlapped layers is not more than two; the diameter of the grinding steel ball is 0.5-6 mm. In the optimization, the reasonable quantity of the grinding steel balls is set, so that the bottom of the processing channel can be uniformly paved, the effect of simultaneous processing is achieved, the motion interference among the grinding steel balls can be avoided, and the idle work is performed.
Referring to fig. 1, the clamping mechanism comprises a clamping bracket 3 and fastening screws 4, wherein the clamping bracket 3 is positioned on the outer side of the processing box body 1 and is provided with a plurality of clamping channels; in the clamping state, the edge of the sheet metal part a to be processed is placed in the clamping channel, and the fastening screw 4 extends into the clamping channel to fix the sheet metal part a.
Further, the bottom of the clamping support 3 is fixedly connected with the bottom of the processing box body 1 through a fixing bolt, so that the whole strengthening processing equipment is more compact in structure.
In this embodiment, the processing box 1 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.
Referring to fig. 1, the working principle of the electromagnetic enhanced grinding device in the embodiment is as follows:
when the processing device works, the grinding steel balls are firstly uniformly and flatly laid at the bottom of the processing channel, and then a metal plate a to be processed (such as parts with high requirements on the physical properties of the surfaces of airplane wings, airplane wall plates, valve plates, guide rails and the like) is clamped at the top of the processing box body 1 through the clamping mechanism, so that the surface to be processed faces downwards and faces the processing channel. The pulse power supply is switched on, so that high-voltage pulse current flows through the pulse spiral coil 2, a strong magnetic field is generated around the pulse spiral coil 2 in the process, and the pulse spiral coil 2 is positioned above the grinding steel balls, and the direction of the internal magnetic field is the same as the direction of the vertical extension of the processing channel, so that the magnetic field in the processing channel is equivalent to an invisible strong magnet suspended right above the grinding steel balls and attracts the grinding steel balls to move upwards in an accelerated manner.
Further, after being accelerated by magnetic force, the grinding steel balls move upwards at high speed until impacting on the metal plate a positioned at the top of the processing channel, and the plurality of grinding steel balls respectively impact on different positions of the processing surface of the metal plate a, so that a strengthened grinding layer is gradually formed. When the grinding steel ball is close to the inside of the pulse spiral coil 2, the power supply is cut off, the magnetic field disappears (the interference of the magnetic field when the grinding steel ball moves at the rear section is avoided), and at the moment, the grinding steel ball still moves upwards at a high speed until the grinding steel ball collides with the metal plate part a. After the grinding steel balls impact the metal plate a, the grinding 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 milled steel balls after the falling back obtain the driving force again, moving upwards again, impacting on the processing surface of the metal plate part a at a high speed, and then falling back again; and circulating in sequence to realize the strengthening processing of the surface of the metal plate part a until the processing is finished.
Example 2
Referring to fig. 2, unlike embodiment 1, the number of the pulse spiral coils 2 is at least two, and the pulse spiral coils are wound around the outer side wall of the processing box 1 in the vertical direction; the pulse spiral coil 2 is connected in parallel to a pulse power supply. Of course, the pulse spiral coil 2 may be three, four or more. Above-mentioned structure sets up a plurality of pulse helical coil 2 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 grinding steel ball to reach higher process velocity.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (7)
1. An electromagnetic reinforced grinding device for processing 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 which has the same shape with the processing plane of the workpiece to be processed and is of a hollow structure is arranged in the processing box body, and the inner cavity forms a processing channel; the clamping mechanism clamps the edge of the workpiece to be processed on the top of the processing box body in a mode of fixing the edge, and the processing plane of the workpiece to be processed faces downwards and is right opposite to the processing channel; grinding steel balls for performing impact processing on the surface of the metal plate are randomly distributed at the bottom of the processing channel in a non-working state;
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 the grinding steel ball which is placed in a static state in the processing channel.
2. The electromagnetic enhanced grinding apparatus for processing the surface of a sheet metal element as claimed in claim 1, wherein said pulse helical coils are at least two and are wound on the outer side wall of the processing box body in the vertical direction; the pulse spiral coil is connected to a pulse power supply in parallel.
3. The electromagnetic enhanced grinding device for processing the surface of the metal plate element as claimed in claim 1 or 2, wherein the grinding steel balls are uniformly laid on the bottom of the processing channel under a static state, and the number of layers after overlapping is not more than two.
4. The electromagnetic enhanced grinding apparatus for processing the surface of a metal plate member as recited in claim 3, wherein said grinding steel balls have a diameter of 0.5-6 mm.
5. The electromagnetic enhanced grinding equipment for processing the surface of the metal plate part as claimed in claim 1, 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 workpiece to be machined is placed in the clamping channel, and the fastening screw extends to the clamping channel to fix the workpiece.
6. The electromagnetic enhanced grinding apparatus for processing the surface of a metal plate member as recited in claim 5, wherein the bottom of said holding bracket is fixedly connected with the bottom of the processing box body by a fixing bolt.
7. The electromagnetic enhanced grinding apparatus for processing the surface of a metal plate member as recited in claim 1 or 2, wherein said processing box is made of a non-magnetic material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111593385A (en) * | 2020-05-26 | 2020-08-28 | 徐敬 | Metal magnetic accelerating sand blasting plating equipment adopting metal plating electric heating method |
| CN115401621A (en) * | 2022-08-17 | 2022-11-29 | 武汉船用机械有限责任公司 | Shot blasting device accelerated by electric field |
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