CN202640157U - Polishing liquid recycling device for automatic polishing machine - Google Patents

Abstract

The utility model discloses a polishing liquid circulation device of an automatic polishing machine, which comprises a polishing liquid storage barrel, an electromagnetic valve, an infusion pump, an infusion pipe and a liquid return pipe, and the above-mentioned infusion pipe transfers the polishing liquid It is transported to the upper grinding wheel, and the above liquid return pipe recovers the polishing liquid from the lower grinding wheel. The beneficial effect of the utility model is that the polishing liquid can be circularly provided to the polishing device, so as to realize a high-quality polishing effect.

Description

Polishing fluid circulation device for automatic polishing machine

technical field

The utility model relates to a circulation device, in particular to a polishing liquid circulation device of an automatic polishing machine.

Background technique

Water-cooled radiators for high-power power semiconductor devices are mainly copper-body water-cooled radiators. Due to the high manufacturing cost, it is generally cast by adding an appropriate proportion of alloy aluminum (aluminum-manganese) to pure aluminum in the world. It is a water-cooled radiator with an aluminum alloy body. The surface of the aluminum alloy cast radiator is relatively rough. The water-cooled radiator for high-power power semiconductor devices not only requires a high double-surface high-precision surface of the radiator, but also requires a high The parallelism of the workpiece surface. When used in high-voltage, high-power, DC transmission and other devices, it can be used for more than a dozen or dozens of water-cooled heat dissipation devices connected in series and connected in parallel with the water circuit.

The current aluminum alloy casting body water-cooled radiators used in power semiconductor devices in my country are difficult to meet the various needs of the market for high-power power semiconductor devices. , can easily cause equipment failure. Water-cooled radiators used in projects such as DC power transmission, UHV power transmission, and high-speed rail transportation all rely on foreign imports.

With the rapid development of power electronics technology and the increasing requirements of current electronic equipment for high-performance modules and high-reliability and high-power devices, the heat consumption per unit volume of power semiconductor devices has increased due to the increase in switching frequency and switching capacity in recent years. The degree of heat dissipation is getting higher and higher, resulting in a sharp rise in calorific value and temperature. Mechanical, chemical, and electrical reliability problems caused by thermal drive are also becoming more and more serious, which seriously affects the quality and reliability of products. Therefore, the heat dissipation of power devices has become a hot spot in the field of power electronics applications.

The aluminum alloy casting body water-cooled radiator is used for high-power power semiconductor devices, and the table top of the radiator is mostly round. The surface finish of the circular mesa is a key part in contact with the mesa of electronic devices, and its quality will affect the working temperature of the device. In the current finishing process of the surface of the circular table top of the radiator, domestic enterprises are still in the initial stage at present, and the main thing is that most of them use ordinary polishing machine tools, and the loading (unloading) of materials must be carried out after stopping. Although this single-machine production and processing has the advantages of simple process and low equipment price, its production efficiency is low, product quality is unstable, and market competitiveness is weak.

Utility model content

The technical problem to be solved by the utility model is to provide a polishing liquid circulation device for an automatic polishing machine, which can circulate and provide polishing liquid to the polishing device, so as to achieve a high-quality polishing effect.

The utility model is achieved through the following technical solutions.

A polishing liquid circulation device for an automatic polishing machine, comprising a polishing liquid storage tank, a solenoid valve, an infusion pump, an infusion pipe, and a liquid return pipe, which are provided for circulation, and the above infusion pipe transports the polishing liquid to the upper grinding wheel, The liquid return pipe recovers the polishing liquid at the lower grinding wheel.

Further, a filter layer for filtering and recovering the polishing liquid is provided in the polishing liquid storage barrel.

Further, the working surface of the above-mentioned upper and lower grinding wheels is provided with several grooves, and the above-mentioned grooves are provided with a number of small holes passing through the grinding wheel. The recovery port of the liquid return pipe is located at the side of the bottom surface of the lower grinding wheel when the lower grinding wheel is being polished.

The beneficial effect of the utility model is that the polishing liquid is provided circularly to the upper and lower grinding wheels, which saves the polishing liquid and reduces the production cost. The structure setting of the working surface of the grinding wheel is better to complete the supply and recovery functions of the polishing fluid, and achieve a better polishing effect on the workpiece to be polished.

Description of drawings

Fig. 1 is the structural representation of the polishing fluid circulation device of the automatic polishing machine of the present invention;

Figure 2 is a schematic diagram of the working surfaces of the upper and lower grinding wheels.

Detailed ways

The utility model will be described in further detail below according to the accompanying drawings and embodiments.

Fig. 1 is a schematic structural view of the polishing liquid circulation device of the automatic polishing machine of the present invention, and Fig. 2 is a schematic diagram of the upper and lower grinding wheel working surfaces, with reference to Fig. 1, the utility model, the polishing liquid circulation device of the automatic polishing machine, comprises Polishing liquid storage tank 11, solenoid valve 12, infusion pump 13, infusion pipe 14, liquid return pipe 15 set in circulation, the infusion pipe 14 transports the polishing liquid to 21 places of the upper grinding wheel, and the liquid return pipe 15 recovers 23 places of the lower grinding wheel Polishing fluid, the polishing fluid storage tank 11 is provided with a filter layer 110 for filtering and recovering the polishing fluid.

With reference to Fig. 2, and in conjunction with Fig. 1, the working surface of upper and lower grinding wheels 21, 23 is provided with several grooves 201, and grooves 201 intersect each other, and groove 201 is provided with some small holes 203 that run through the grinding wheels, and the output of infusion tube 14 When the port is arranged on the upper grinding wheel 21 for polishing, the upper side of the upper grinding wheel 21, and the recovery port of the liquid return pipe 15 is located at the side of the bottom surface of the lower grinding wheel 23 when the lower grinding wheel 23 is grinding. The polishing liquid is sprayed on the upper surface of the upper grinding wheel 21 by the infusion tube 14, and penetrates into the groove 201 through the small hole 203, and the polishing liquid stored in the groove 201 flows evenly to the workpiece to be polished when the upper grinding wheel rotates; The polishing liquid then passes through the groove 201 and the small hole 201 of the lower grinding wheel 23 and then collects and flows back to the liquid return pipe 15, and is recovered to the polishing liquid storage tank 11 for filtering and then circulating.

The utility model, the polishing liquid circulation device of the automatic polishing machine, circulates the polishing liquid to the upper and lower grinding wheels, saves the polishing liquid and reduces the production cost, and the filter layer set in the polishing liquid storage tank can ensure the circulation of grinding At the same time, the structure of the upper and lower grinding wheel working surfaces is better to complete the supply and recovery functions of the polishing fluid, and achieve a better polishing effect for the polished workpiece.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and not to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (3)

1. A polishing liquid circulation device for an automatic polishing machine, characterized in that it includes a polishing liquid storage barrel, a solenoid valve, an infusion pump, an infusion tube, and a liquid return pipe that are arranged in circulation, and the infusion tube will grind The polishing liquid is transported to the upper grinding wheel, and the liquid return pipe recovers the polishing liquid at the lower grinding wheel. 2 . The polishing liquid circulation device of an automatic polishing machine according to claim 1 , wherein a filter layer for filtering and recovering the polishing liquid is provided in the polishing liquid storage tank. 3 . 3. The polishing liquid circulation device of the automatic polishing machine according to claim 1, wherein the working surfaces of the upper and lower grinding wheels are provided with several grooves, and the grooves are provided with a plurality of small holes that run through the grinding wheels. hole, the output port of the infusion tube is set on the upper side of the upper grinding wheel when the upper grinding wheel is polished, and the recovery port of the liquid return pipe is located on the side of the bottom surface of the lower grinding wheel when the lower grinding wheel is polished.

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