CN110820037A

CN110820037A - Solid of revolution electrolytic machine composite polishing machine

Info

Publication number: CN110820037A
Application number: CN201810922748.5A
Authority: CN
Inventors: 李红
Original assignee: Chengdu Jinluyong Building Materials Co Ltd
Current assignee: Chengdu Jinluyong Building Materials Co Ltd
Priority date: 2018-08-14
Filing date: 2018-08-14
Publication date: 2020-02-21

Abstract

The invention discloses a revolving body electrolytic mechanical composite polishing machine, which comprises an electrolytic mechanical polishing device, an electrolytic grinding fluid cooling device, an electrolytic grinding fluid circulating device and a machine base, wherein the electrolytic mechanical polishing device comprises: electricity main shaft, negative pole polishing dish, connecting rod, non-woven fabrics and anchor clamps, electricity main shaft sets up on the support on the slider, slider and the spout sliding fit on the frame, anchor clamps set up along slider direction of motion, negative pole polishing dish and electricity main shaft are connected respectively to the connecting rod, the polished surface of negative pole polishing dish is hugged closely has the non-woven fabrics, anchor clamps and electricity main shaft still be provided with the splashproof case outward. The invention has the advantages of wide processing range, high processing precision, good surface quality, small abrasive tool abrasion, less working procedures, high processing efficiency and low cost, and is suitable for processing various materials.

Description

Solid of revolution electrolytic machine composite polishing machine

Technical Field

The invention relates to the field of electrolytic machining, in particular to a revolving body electrolytic mechanical composite polishing machine.

Background

With the rapid development of modern science and technology, the technical performance and the service life of the traditional mechanical products cannot meet the requirements of the public, which requires higher machining precision and surface quality requirements of mechanical parts, so that the traditional machining method cannot meet the requirements. More and more mechanical devices are required to move at high speed in extreme climatic temperature, pressure conditions and harsh environments, and the devices generally adopt metal materials which are difficult to process and have higher hardness, higher melting point and certain special physical properties. Meanwhile, the parts forming the equipment have high dimensional accuracy and geometric shape, and also have high contour position accuracy and low surface roughness. To meet these requirements, we must adopt an effective, safe and reliable precision cutting and finishing method. The finishing processing technology is a processing technology which removes an extremely thin material layer on the surface of a rough workpiece, so that the quality of the processed surface is greatly improved, and the surface roughness value is obviously reduced, thereby achieving the stability of the surface or dimensional precision of a part and finally improving the manufacturing and processing precision grade. Usually, the method is used as the last process of the finishing process of the parts with higher requirements on the processing precision. The technology is widely applied to various industries such as aerospace, nuclear power thermoelectricity, chemical industry, microelectronic industry, machine tool manufacturing, automobile industry, hardware, medical equipment, jewelry and the like. The traditional polishing machine at present has low automation degree, can not accurately process materials difficult to process, wastes a large amount of manpower and material resources, and develops the solid of revolution electrolytic machine composite polishing machine.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a revolving body electrolytic mechanical composite polishing machine, which uses electrolytic mechanical composite polishing, has the processing performance not limited by the conditions of strength, hardness and the like of a processed material, and can finish the hard-processing materials such as hardened high-carbon steel, alloy steel, hard alloy and the like by only selecting proper electrolyte and grinding materials; in the polishing process, the mechanical scraping acting force of the abrasive particles is small, the relative movement speed is low, the defects of plastic deformation, residual stress, micro-cracks, burning and the like cannot be formed on the surface of a workpiece, meanwhile, the electrolytic reaction is carried out on the surface of the workpiece to form a passivation film, the abrasive particles are continuously abraded to remove high points of the passivation film, and the low points are protected, so the surface roughness is reduced; the device has the advantages of few working procedures for processing workpieces, high processing efficiency and low cost.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a solid of revolution electrolytic machine compound burnishing machine, includes electrolytic machine burnishing device, electrolytic grinding fluid cooling device, electrolytic grinding fluid circulating device and frame, electrolytic machine burnishing device include: electricity main shaft, negative pole polishing dish, connecting rod, non-woven fabrics and anchor clamps, electricity main shaft sets up on the support on the slider, slider and the spout sliding fit on the frame, anchor clamps set up along slider direction of motion, negative pole polishing dish and electricity main shaft are connected respectively to the connecting rod, the polished surface of negative pole polishing dish is hugged closely has the non-woven fabrics, anchor clamps and electricity main shaft still be provided with the splashproof case outward.

Further, as a preferred embodiment, the electrolytic grinding fluid cooling device includes: the liquid inlet pipe is respectively connected with a cooling liquid outlet of the cooler and a cooling liquid inlet of the electric main shaft, and the liquid outlet pipe is respectively connected with a cooling liquid outlet of the electric main shaft and a cooling liquid inlet of the cooler.

Further, as preferred technical scheme, be provided with the baffle in the splashproof case, the baffle setting is between polishing dish and electric main shaft, the splashproof case lower part is provided with the electrolyte liquid outlet.

Further, as a preferable aspect, the electrolytic grinding fluid circulating apparatus includes: electrolyte advances pipe, electrolyte drain pipe, clarifier and circulating pump, and shown electrolyte feed liquor pipe connects the electrolyte inlet of electric main shaft and the electrolyte liquid outlet of clarifier respectively, the electrolyte liquid outlet of splashproof case and the electrolyte inlet of clarifier are connected respectively to the electrolyte liquid outlet, the circulating pump sets up on electrolyte feed liquor pipe.

Further, as a preferred technical scheme, a layer of plastic insulating sleeve is arranged between the electric spindle and the polishing disk.

Furthermore, as a preferred technical scheme, one end of the clamp is provided with a rotating mechanism for driving the workpiece to rotate.

The invention has the following beneficial effects:

1. the electrolytic mechanical composite polishing removes metal by means of the anode dissolution of the conductive metal, so that the processing performance is not limited by the conditions of strength, hardness and the like of the processed material, and the hard-to-process materials such as hardened high-carbon steel, alloy steel, hard alloy and the like can be polished by selecting proper electrolyte and abrasive.

2. In the electrolytic mechanical composite polishing process, the mechanical scraping acting force of the abrasive particles is small, the relative movement speed is low, and the defects of plastic deformation, residual stress, micro-cracks, burning and the like cannot be formed on the surface of a workpiece. Meanwhile, the surface of the workpiece is subjected to electrolytic reaction to form a passive film, the abrasive particles are continuously abraded to remove high points of the passive film, and low points are protected, so that the surface roughness is reduced.

3. The abrasive particles are used for scraping the passive film on the surface of the part, and compared with a metal matrix with higher hardness, the acting force is extremely small, so that the abrasion of the grinding tool is very small.

4. In the conventional mirror surface mechanical polishing process, procedures such as rough polishing, fine polishing and the like need to be performed, and the grinding materials with different particle sizes need to be replaced. And the electrolytic mechanical composite polishing is adopted, and the polishing can be finished by only using grinding materials with fine granularity through one-step processing. The technology utilizes the hardness of the passive film lower than the metal hardness, and the passive film is easy to scrape, thereby improving the processing efficiency and reducing the production cost.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. a machine base; 2. a slider; 3. a support frame; 4. an electric spindle; 5. a cooler; 6. a purifier; 7. a cathode polishing disk; 8. a splash box; 9. a workpiece; 10. a rotation mechanism; 11. a clamp; 12. a circulation pump; 13. a plastic insulating sleeve; 14. non-woven fabrics; 15. a liquid inlet pipe; 16 liquid outlet pipes; 17. an electrolyte inlet pipe; 18. and an electrolyte outlet pipe.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Example 1

As shown in fig. 1, the electrolytic mechanical composite polisher for the revolving body comprises an electrolytic mechanical polishing device, an electrolytic grinding fluid cooling device, an electrolytic grinding fluid circulating device and a base 1, wherein the electrolytic mechanical polishing device comprises: electricity main shaft 4, negative pole polishing dish 7, connecting rod, non-woven fabrics 14 and anchor clamps 11, electricity main shaft 4 sets up on the support on slider 2, slider 2 and the spout sliding fit on the frame 1, anchor clamps 11 set up along 2 direction of motion of slider, 11 one end of anchor clamps are provided with rotary mechanism 10 for it is rotatory to drive work piece 9 the negative pole polishing dish 7 and electricity main shaft 4 are connected respectively to the connecting rod, be provided with one deck plasticity insulation cover 13 between electricity main shaft 4 and the polishing dish 7, the polished surface of negative pole polishing dish 7 is hugged closely non-woven fabrics 14, anchor clamps 11 and electricity main shaft 4 still be provided with splashproof case 8 outward, be provided with the baffle in the splashproof case 8, the baffle sets up between polishing dish 7 and electricity main shaft 4, splashproof case 8 lower parts is provided with the electrolyte liquid outlet.

The electrolytic grinding fluid cooling device comprises: feed liquor pipe, drain pipe, nozzle and cooler 5, the feed liquor pipe do not connect the cooling liquid outlet of cooler 5 and the cooling inlet of electric main shaft 4, the drain pipe is connected the cooling liquid outlet of electric main shaft 4 and the cooling inlet of cooler 5 respectively.

The electrolytic grinding fluid circulating device comprises: electrolyte advances pipe, electrolyte drain pipe, clarifier 6 and circulating pump 12, and shown electrolyte feed liquor pipe connects the electrolyte inlet of electric main shaft 4 and the electrolyte liquid outlet of clarifier 6 respectively, the electrolyte liquid outlet of splashproof case 8 and the electrolyte inlet of clarifier 6 are connected respectively to the electrolyte liquid outlet, circulating pump 12 sets up on electrolyte feed liquor pipe.

When the electric spindle 4 works, a part to be processed is clamped on the clamp 11, the selective installation mechanism is started to enable the part to be processed to rotate, the electrolytic grinding fluid cooling device and the electrolytic mechanical polishing device are started, the electric spindle 4 is directly connected with a driven device without a motor, a belt transmission, a gear box and other complex transmission chains, the frequency of a power supply is adjusted by an external frequency converter to change the rotating speed of the electric spindle 4, and then zero transmission of the spindle part can be achieved. The motor rotor of the electric spindle 4 is assembled with the spindle through a rotor bush, and the motor stator is assembled with the spindle outer sheath through a cooling water jacket, so that seamless connection between the motor and the spindle is realized. The motorized spindle 4 has the characteristics of compact overall structure, small rotational inertia, stable dynamic response characteristic, accurate starting and stopping, stepless speed change and the like. Because the motor and the main shaft are in interference fit during assembly, larger torque can be transmitted, the dynamic balance precision and the transmission capacity of the main shaft are improved, and high-precision machining is realized. The electric spindle 4 drives the polishing disc 7 to move through the connecting rod, the polishing disc 7 and the connecting rod are fixedly connected through threads, and the other end of the connecting rod is clamped by a chuck of the electric spindle 4. The coaxiality of the inner hole of the polishing disk 7, the connecting rod and the chuck of the electric spindle 4 is the same, and the rotating stability and the contact ratio of the axes of the polishing disk, the connecting rod and the chuck of the electric spindle are improved. The chuck firmly clamps the connecting rod with a certain clamping force to ensure that the connecting rod cannot be loosened in high-speed rotation, and the threads on the connecting rod generate a white lock effect in the rotation process, so that the polishing disc 7 can be firmly connected, and the whole cathode device cannot be loosened. After the electrolytic mechanical composite polishing device is started, the slide block 2 drives the electrolytic mechanical polishing device on the support frame 3 to move along the processing direction, so that the electrolytic mechanical composite polishing device polishes the workpiece 9. The outer layer of the cathode of the tool for electrolytic mechanical composite polishing is adhered with a layer of non-woven fabric 14, and the electrolyte is mixed with micro-powder abrasive particles and sprayed into a processing gap. Since the abrasive grains are suspended in the electrolyte, the grinding track made on the surface of the workpiece 9 is more disordered and irregular, and a smoother mirror surface can be obtained. In the polishing process, the abrasive and the electrolyte are mixed together, and the mixture shows certain fluid characteristics, so that the processed surface cannot be seriously scratched.

The present specification and figures are to be regarded as illustrative rather than restrictive, and it is intended that all such alterations and modifications that fall within the true spirit and scope of the invention, and that all such modifications and variations are included within the scope of the invention as determined by the appended claims without the use of inventive faculty.

Claims

1. The utility model provides a solid of revolution electrolytic machine compound burnishing machine, includes electrolytic machine burnishing device, electrolytic grinding fluid cooling device, electrolytic grinding fluid circulating device and frame (1), its characterized in that, electrolytic machine burnishing device include: electricity main shaft (4), negative pole polishing dish (7), connecting rod, non-woven fabrics (14) and anchor clamps (11), electricity main shaft (4) set up on the support on slider (2), slider (2) and the spout sliding fit on frame (1), anchor clamps (11) set up along slider (2) direction of motion, negative pole polishing dish (7) and electricity main shaft (4) are connected respectively to the connecting rod, the polished surface of negative pole polishing dish (7) is hugged closely non-woven fabrics (14), anchor clamps (11) and electricity main shaft (4) still be provided with splashproof case (8) outward.

2. A revolving body electrolytic mechanical composite polisher according to claim 1 with the electrolytic grinding fluid cooling means comprising: feed liquor pipe (16), drain pipe (15) and cooler (5), feed liquor pipe (16) do not connect the cooling liquid outlet of cooler (5) and electric main shaft's cooling inlet (16), the cooling liquid outlet of electric main shaft (4) and the cooling inlet of cooler are connected respectively in drain pipe (15).

3. A revolving body electrolytic mechanical composite polishing machine according to claim 1, characterized in that a partition board is arranged in the splash proof box (8), the partition board is arranged between the cathode polishing disk (7) and the electric spindle (4), and an electrolyte outlet is arranged at the lower part of the splash proof box (8).

4. A revolving body electrolytic mechanical composite polisher according to claim 1 with electrolytic grinding fluid circulating means comprising: electrolyte feed liquor pipe (17), electrolyte drain pipe (18), clarifier (6) and circulating pump (12), the electrolyte inlet of electricity main shaft (4) and the electrolyte liquid outlet of clarifier (6) are connected respectively in shown electrolyte feed liquor pipe (17), the electrolyte liquid outlet of splashproof case (8) and the electrolyte inlet of clarifier (6) are connected respectively in electrolyte drain pipe (18), circulating pump (12) set up on electrolyte feed liquor pipe.

5. A revolving body electrolytic mechanical composite polisher according to claim 1 with a plastic insulating sleeve between the motorized spindle (4) and the cathode polishing disk (7).

6. A revolving body electrolytic mechanical composite polishing machine according to claim 1, characterized in that the fixture is provided with a rotating mechanism at one end for driving the workpiece (9) to rotate.