CN206216512U - Grinding fluid jet grinder-polisher - Google Patents

Abstract

The utility model discloses a grinding liquid jet grinding and polishing machine. In order to achieve the purpose of polishing, a rotating drum is installed above the middle of the box body, a workpiece is installed on the rotating drum and fixed on the workpiece shaft, and the stirring cage is placed under the middle of the box body. Driven by the rotating motor to rotate clockwise, the inlet of the suction pipe is close to the left side of the stirring cage, the suction pipe is fixed by a thin-walled sleeve, the thin-walled sleeve is threaded to the box, the tapered nozzle is vertically close to the outlet of the suction pipe, and the nozzle The outlet is aligned with the center of the rotating drum. The entire box is supported by a metal base. There will be no thermal deformation during the processing, and the processing precision is very high, and the operation is simple and convenient. Its working principle is similar to traditional shot peening, but its energy is highly concentrated, and it adopts a wet system, which will not cause environmental pollution and belongs to green processing.

Description

Abrasive jet grinding and polishing machine

Technical field:

The utility model belongs to the field of manufacturing technical equipment, in particular to a grinding and polishing equipment.

Background technique:

With the development of modern industry and the progress of social material and spiritual civilization, the materials for manufacturing machine parts are becoming more and more diversified, and the shapes of parts are becoming more and more complicated. problem.

Since the middle of the nineteenth century, facing the damage caused by wind and rain to the surface of buildings and ground, scientists have developed a mechanism of erosion and wear on the surface when materials are impacted by small and loose flowing particles. Long-term research into preventing and mitigating this damaging effect. By the middle of the last century, scientific and technological workers at home and abroad carried out research on the application of erosion principles and formed high-pressure water jet technology. On the one hand, low-pressure (≤0.8MPa) water jets were used to clean ships, pipes, boilers, etc. On the other hand, high-pressure water jets are used for coal mines, polymetallic mines and other mines, as well as concrete and stone cutting and crushing. In order to overcome the harsh working conditions of the traditional dry sandblasting technology, in the 1970s, an automobile manufacturing and distribution factory made a technical innovation attempt to polish the outer surface of the oil pump rotor with 0.6MPa low-pressure abrasive liquid, and the result was improved compared with manual operation. , the quality is stable, and the working conditions are improved, but there is a lack of systematic theoretical research and further research and development of technical equipment. Therefore, designing and manufacturing a reliable surface processing device has certain application value and technical value.

The above-mentioned high-pressure water jet technology is to spray sand and water onto the surface of the workpiece for grinding, but the direct impact force of the water is too large, it is difficult to control, and it is easy to cause excessive polishing and excessive grinding of the workpiece. In addition, during the grinding process, a large amount of heat will be generated. If the grinding solution is recycled, the temperature of the solution will rise, thereby gradually reducing the heat dissipation capacity of the workpiece surface, and thermal deformation will easily occur. To remove the grinding solution, it is necessary to establish a special anti- Blocking and removing pipelines takes up a lot of land and costs are high.

Utility model content:

The basic research of abrasive jet grinding and polishing technology is the research of a new high-efficiency and energy-saving technology developed to overcome the defects of dry sandblasting technology. The utility model uses gas to take away most of the heat during grinding during the processing process, does not cause thermal deformation, does not need to discharge sewage, and has high processing precision, simple and convenient operation, and overcomes the problem of directly using liquid for grinding. disadvantages. The utility model adopts a wet system, does not cause environmental pollution, and belongs to green processing.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A grinding liquid jet grinding and polishing machine, including a gas nozzle, a box for storing the grinding liquid, and a suction pipe for absorbing the grinding liquid; a rotating mechanism for installing workpieces is fixed in the box; an exhaust hole is arranged in the upper part of the box .

As a further improvement, the rotating mechanism includes a workpiece shaft, and a rotating drum for installing the workpiece is fixed on the outside of the workpiece shaft.

As a further improvement, a cage-stirring shaft is installed at the bottom of the box, and a cage-stirring shaft is fixed on the cage-stirring shaft.

As a further improvement, the cage-stirring shaft is arranged parallel to the ground, and the cage-stirring shaft is arranged vertically to the cage-stirring shaft.

As a further improvement, the distance between the gas nozzle and the liquid outlet of the pipette is not greater than 5cm.

As a further improvement, the outlet of the exhaust hole is higher than the center of the rotating mechanism by more than 20cm.

As a further improvement, the opening of the vent hole is upward, and the cross section of the vent hole is triangular.

As a further improvement, the liquid suction pipe is fixed on the inner wall of the box by a thin-walled circular sleeve through bolts.

As a further improvement, the outlet of the gas nozzle is directly facing the central axis of the rotating mechanism.

As a further improvement, the bottom of the box is fixed with a metal base.

The grinding liquid jet grinding and polishing machine is mainly composed of a box, a nozzle, a suction pipe, an auger, a rotating drum, etc. In order to achieve the purpose of polishing, the rotating drum is installed above the center of the box. The workpiece is installed on the rotating drum and fixed on the workpiece shaft. The stirring cage is driven by the rotating motor in the middle of the box to rotate clockwise. The suction pipe inlet and The left side of the stirring cage is approaching, the suction pipe is fixed by a thin-walled sleeve, the thin-walled sleeve is threaded with the box body, the tapered nozzle is vertically close to the outlet of the suction pipe, and the outlet of the nozzle is aligned with the center of the rotating drum. The entire box is supported by a metal base. During the processing, most of the heat during grinding is taken away by gas, no thermal deformation occurs, and no sewage needs to be discharged. The processing accuracy is high, the operation is simple and convenient, and it overcomes the disadvantages of directly using liquid grinding. The utility model adopts a wet system, does not cause environmental pollution, and belongs to green processing.

Abrasive jet grinding and polishing is a new type of jet with very promising application prospects. It has a wide range of processing and is suitable for finishing processing of metals, alloys, stones and other materials. It has broad market prospects and good economic and social benefits. .

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Marks in the figure: workpiece 1, exhaust hole 2, rotating drum 3, workpiece shaft 4, stirring cage 5, stirring cage shaft 6, liquid suction pipe 7, filtered compressed air 8, gas nozzle 9, box body 10, thin-walled circular sleeve 11 , 12 metal bases.

detailed description:

The grinding fluid jet grinding and polishing machine will be further described in conjunction with the accompanying drawings:

The main structure of the utility model includes an exhaust hole 2, a rotating roller 3, a workpiece shaft 4, a stirring cage 5, a stirring cage shaft 6, a liquid suction pipe 7, a gas nozzle 9, a box body 10, a thin-walled round sleeve 11 and a metal base 12 ; When working, first put the abrasive, cleaning agent and water into the box in a certain proportion. Fix the workpiece 1 on the rotating drum. After starting up, the gas nozzle 9 sucks the grinding liquid from the suction pipe 7 by means of the negative pressure of the filtered compressed airflow 8 and mixes it with the airflow to spray the surface of the workpiece; at the same time, the drum is rotated to drive the workpiece continuously. spin around. The impeller is rotated by the belt drive, so that the abrasive is suspended without sedimentation. The waste gas in the working process is discharged through the exhaust hole 2, and the abrasives carried away by the air flow flow back to the oil tank with the liquid under the resistance of the tank wall. The suction power of liquid suction pipe 7 can select the water pump or other devices that are connected with liquid suction pipe 7.

The utility model forms a negative pressure at the nozzle through the compressed gas, and the grinding fluid in the box passes through the nozzle to complete the grinding of the parts under the action of atmospheric pressure; it reduces the direct impact grinding of the liquid on the workpiece, and is convenient to control the grinding effect. Dust pollution is effectively avoided during processing, which belongs to green processing. Most of the heat generated during the processing is taken away by the gas, preventing thermal deformation of the parts caused by the temperature rise of the grinding fluid, and improving the processing accuracy of the parts. Compared with simple liquid jet polishing, more abrasives are added, the energy of the working medium is significantly improved, and the surface accuracy and processing efficiency of the parts are greatly improved.

Although the utility model has been described in detail with general description and specific examples above, some modifications or improvements can be made on the basis of the utility model, which will be obvious to those skilled in the art. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the utility model all belong to the protection scope of the utility model.

Claims (10)

1. grinding fluid jet grinder-polisher, it is characterised in that including gas nozzle (9), the casing (10) of use storage grinding fluid and Draw the pipette (7) of grinding fluid；The rotating mechanism for installing workpiece (1) is fixed with casing (10)；Casing (10) middle and upper part It is provided with steam vent (2).

2. grinding fluid jet grinder-polisher as claimed in claim 1, it is characterised in that the rotating mechanism includes workpiece spindle (4), it is arranged the rotating cylinder (3) being fixed with for installing workpiece (1) outside workpiece spindle (4).

3. grinding fluid jet grinder-polisher as claimed in claim 1, it is characterised in that casing (10) bottom is provided with to be stirred Cage axle (6), is fixed with stirring cage (5) on stirring cage axle (6).

4. grinding fluid jet grinder-polisher as claimed in claim 3, it is characterised in that the parallel ground of the stirring cage axle (6) sets Put, stirring cage (5) is vertically arranged with stirring cage axle (6).

5. grinding fluid jet grinder-polisher as claimed in claim 1, it is characterised in that the gas nozzle (9) and pipette (7) distance of liquid outlet is not more than 5cm.

6. grinding fluid jet grinder-polisher as claimed in claim 1, it is characterised in that the outlet of the steam vent (2) is higher than More than the center 20cm of rotating mechanism.

7. grinding fluid jet grinder-polisher as claimed in claim 1, it is characterised in that steam vent (2) opening upwards, and The cross section of steam vent (2) is triangle.

8. grinding fluid jet grinder-polisher as claimed in claim 1, it is characterised in that the pipette (7) is by thin-walled round bush (11) it is bolted on casing (10) inwall.

9. grinding fluid jet grinder-polisher as claimed in claim 1, it is characterised in that the outlet of the gas nozzle (9) is just To the axis of rotating mechanism.

10. grinding fluid jet grinder-polisher as claimed in claim 1, it is characterised in that casing (10) bottom is fixed with Metab (12).