Hydraulic system of numerical control grinding machine

Abstract

The utility model relates to the technical field of numerical control grinders, in particular to a numerical control grinder hydraulic system. According to the technical scheme, the device comprises an oil tank, an upper heat conduction plate, an oil pump and a lower heat conduction plate, an oil return pipe is fixedly connected to one side of the oil tank, the oil pump is fixedly installed on the side, away from the oil return pipe, of the oil tank, and the tail end of an oil pump input pipe is fixedly connected with the side, close to the oil pump, of the oil tank; an upper inserting hole is formed in the upper surface of the oil tank, an upper heat conduction plate is fixedly installed in the upper inserting hole, a lower inserting hole is formed in the lower surface of the oil tank, and a lower heat conduction plate is fixedly installed in the lower inserting hole. According to the hydraulic oil supply device, hydraulic oil in a numerical control grinding machine system can be automatically cooled, the equipment cost is reduced, meanwhile, hydraulic oil cooling pipelines are reduced, and the stability of hydraulic oil supply is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control grinding machines, in particular to a hydraulic system for numerical control grinding machines. Background Art

[0002] CNC grinding machines utilize abrasive tools to grind workpiece surfaces using numerical control technology. Most grinding machines utilize high-speed rotating grinding wheels, while a few, such as honing machines, superfinishing machines, belt grinders, lapping machines, and polishing machines, utilize other abrasive tools and free abrasives. The hydraulic system is a crucial subsystem of CNC grinding machines, primarily controlling the forward and reverse movement of the spindle grinding wheel, the advance and retract movement of the tailstock, grinder lubrication, and hydraulic drive.

[0003] At present, during the use of the hydraulic system of a CNC grinder, the oil suction pipe of the oil pump and the return oil after pressure relief are connected to the same oil tank, and the inside of the oil tank is connected. When the hydraulic components are used frequently, the temperature of the hydraulic oil will rise, and a cooler or other cooling equipment is required to cool the return hydraulic oil to ensure the normal operation of the hydraulic equipment. Although this can achieve the purpose of cooling, it will increase the equipment cost. At the same time, the added oil pipeline will also affect the stability of the hydraulic oil supply. For this reason, we propose a hydraulic system for a CNC grinder. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic system for a CNC grinder, which has the advantages of enabling the hydraulic oil in the CNC grinder system to cool itself, thereby reducing equipment costs, while also reducing the number of hydraulic oil cooling pipelines and improving the stability of the hydraulic oil supply. It solves the problem that the current method of cooling the hydraulic oil in the hydraulic system of a CNC grinder by adding cooling equipment such as a cooler will increase equipment costs and waste resources, and the added oil pipeline will also affect the stability of the hydraulic oil supply.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a CNC grinding machine hydraulic system, comprising an oil tank, an upper heat conduction plate, an oil pump and a lower heat conduction plate, wherein one side of the oil tank is fixedly connected to an oil return pipe, an oil pump is fixedly installed on the side of the oil tank facing away from the oil return pipe, an end of the oil pump inlet pipe is fixedly connected to a side of the oil tank close to the oil pump, an oil delivery pipe is fixedly connected to the output end of the oil pump, an upper socket is provided on the upper surface of the oil tank, an upper heat conduction plate is fixedly installed inside the upper socket, a lower socket is provided on the lower surface of the oil tank, and a lower heat conduction plate is fixedly installed inside the lower socket.

[0006] Preferably, there are five upper sockets in total, and the five upper sockets are equidistantly arranged on the upper surface of the oil tank, and upper heat conduction plates are fixedly installed inside the five upper sockets.

[0007] Preferably, there are five lower jacks in total, and the five lower jacks are equidistantly arranged on the lower surface of the oil tank, and lower heat conduction plates are fixedly installed inside the five lower jacks.

[0008] Preferably, a filter is fixedly connected to the end of the oil return pipe.

[0009] Preferably, support legs are fixedly installed on the lower surface of the fuel tank near the four corners.

[0010] Preferably, a thermometer is fixedly installed on the outer surface of the oil tank at a position below the oil pump.

[0011] Preferably, the outer surfaces of the five upper heat conducting plates and the five lower heat conducting plates located inside the oil tank are welded with heat conducting fins, and the outer surfaces of the five upper heat conducting plates and the five lower heat conducting plates located outside the oil tank are welded with heat dissipating fins.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model achieves the effect of self-cooling of the hydraulic oil in the CNC grinding machine system by arranging an oil return pipe, an oil tank, an upper jack, an upper heat conduction plate, a lower jack, a lower heat conduction plate, an oil pump and an oil delivery pipe, thereby reducing equipment costs, reducing the hydraulic oil cooling pipeline, and improving the stability of the hydraulic oil supply. The five upper heat conduction plates and the five lower heat conduction plates are spaced apart inside the oil tank, so that the returning hydraulic oil flows up and down in a wave shape inside the oil tank, and the heat therein is gradually released through the upper heat conduction plates and the lower heat conduction plates during the flow process. The cooled hydraulic oil is then delivered to the hydraulic components through the oil pump.

[0014] 2. The utility model can increase the heat absorption and heat dissipation areas of the upper heat conduction plate and the lower heat conduction plate by arranging heat conduction fins and heat dissipation fins, thereby improving the cooling efficiency of the hydraulic oil inside the oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the partial main cross-sectional structure of the upper heat conducting plate of the utility model;

[0017] Figure 3 This is a side structural diagram of the upper heat conducting plate of the utility model.

[0018] Figure numerals: 1. filter; 2. oil return pipe; 3. oil tank; 4. upper socket; 5. upper heat conduction plate; 6. oil supply pipe; 7. oil pump; 8. thermometer; 9. support leg; 10. lower socket; 11. lower heat conduction plate; 12. heat sink fin; 13. heat conduction fin. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] like Figures 1 to 3 As shown, the hydraulic system of the CNC grinder proposed by the present invention includes an oil tank 3, an upper heat conducting plate 5, an oil pump 7 and a lower heat conducting plate 11. A return oil pipe 2 is fixedly connected to one side of the oil tank 3, and a filter 1 is fixedly connected to the end of the return oil pipe 2 for filtering out impurities in the return hydraulic oil. An oil pump 7 is fixedly installed on the side of the oil tank 3 away from the return oil pipe 2. The end of the oil pump 7 input pipe is fixedly connected to the side of the oil tank 3 close to the oil pump 7, and the output end of the oil pump 7 is fixedly connected to an oil delivery pipe 6. The oil pump 7 delivers the hydraulic oil inside the oil tank 3 to the hydraulic components of the CNC grinder. The hydraulic oil after the hydraulic components are depressurized flows back to the oil tank 3 through the return oil pipe 2. An upper socket 4 is provided on the upper surface of the oil tank 3, and there are five upper sockets 4 in total, and the five upper sockets 4 are etc. The five lower sockets 10 are equidistantly arranged on the lower surface of the oil tank 3, and the five lower sockets 10 are equidistantly arranged on the lower surface of the oil tank 3. The five lower sockets 10 are each fixedly installed with an upper heat conducting plate 5, and a hydraulic oil flow gap is left between the upper heat conducting plate 5 and the bottom of the inner wall of the oil tank 3. The lower sockets 10 are provided on the lower surface of the oil tank 3, and there are five lower sockets 10 in total. The five lower sockets 10 are equidistantly arranged on the lower surface of the oil tank 3, and the lower heat conducting plates 11 are each fixedly installed with a lower heat conducting plate 11, and a hydraulic oil flow gap is left between the lower heat conducting plate 11 and the top of the inner wall of the oil tank 3. The upper heat conducting plate 5 and the lower heat conducting plate 11 are spaced apart inside the oil tank 3. A thermometer 8 is fixedly installed on the outer surface of the oil tank 3 below the oil pump 7. The temperature probe of the thermometer 8 is located inside the oil tank 3 for detecting the hydraulic oil temperature inside the oil tank 3.

[0022] When the present invention is in use, the oil pump 7 transports the hydraulic oil inside the oil tank 3 to the hydraulic components of the CNC grinder. The hydraulic oil after the pressure of the hydraulic components is relieved flows back to the oil tank 3 through the return oil pipe 2, and the five upper heat conducting plates 5 and the five lower heat conducting plates 11 are spaced apart inside the oil tank 3, so that the returned hydraulic oil flows up and down in a wave shape inside the oil tank 3, and the heat therein is gradually released through the upper heat conducting plates 5 and the lower heat conducting plates 11 during the flow. The cooled hydraulic oil is then transported to the hydraulic components through the oil pump 7, so that the returned hydraulic oil cools down by itself, thereby reducing the equipment cost of the hydraulic oil cooling, and also reducing the hydraulic oil cooling pipeline, thereby improving the stability of the hydraulic oil supply.

[0023] Example 2

[0024] like Figures 1 to 3As shown, the CNC grinding machine hydraulic system proposed by the present invention, compared with the first embodiment, also includes support legs 9 fixedly installed at the four corners of the lower surface of the oil tank 3, the outer surfaces of the five upper heat conducting plates 5 and the five lower heat conducting plates 11 located inside the oil tank 3 are welded with heat conducting fins 13, and the outer surfaces of the five upper heat conducting plates 5 and the five lower heat conducting plates 11 located outside the oil tank 3 are welded with cooling fins 12.

[0025] In this embodiment, the heat-conducting fins 13 and the heat-dissipating fins 12 can increase the heat-absorbing and heat-dissipating areas of the upper heat-conducting plate 5 and the lower heat-conducting plate 11 , thereby improving the cooling efficiency of the hydraulic oil inside the oil tank 3 .

[0026] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A hydraulic system for a CNC grinding machine, comprising an oil tank (3), an upper heat conducting plate (5), an oil pump (7) and a lower heat conducting plate (11), characterized in that: One side of the oil tank (3) is fixedly connected to an oil return pipe (2); an oil pump (7) is fixedly installed on the side of the oil tank (3) facing away from the oil return pipe (2); the end of the oil pump (7) input pipe is fixedly connected to the side of the oil tank (3) close to the oil pump (7); the output end of the oil pump (7) is fixedly connected to an oil delivery pipe (6); an upper plug hole (4) is provided on the upper surface of the oil tank (3); an upper heat conduction plate (5) is fixedly installed inside the upper plug hole (4); a lower plug hole (10) is provided on the lower surface of the oil tank (3); a lower heat conduction plate (11) is fixedly installed inside the lower plug hole (10).

2. The hydraulic system for a CNC grinding machine according to claim 1, characterized in that: There are five upper jacks (4) in total, and the five upper jacks (4) are equidistantly arranged on the upper surface of the oil tank (3), and upper heat conducting plates (5) are fixedly installed inside the five upper jacks (4).

3. The hydraulic system for a CNC grinding machine according to claim 1, characterized in that: There are five lower plug holes (10) in total, and the five lower plug holes (10) are equidistantly arranged on the lower surface of the oil tank (3), and lower heat conduction plates (11) are fixedly installed inside the five lower plug holes (10).

4. The hydraulic system for a CNC grinding machine according to claim 1, characterized in that: The end of the oil return pipe (2) is fixedly connected to a filter (1).

5. The hydraulic system for a CNC grinding machine according to claim 1, characterized in that: Support legs (9) are fixedly mounted on the lower surface of the oil tank (3) near the four corners.

6. The hydraulic system for a CNC grinding machine according to claim 1, characterized in that: A thermometer (8) is fixedly installed on the outer surface of the oil tank (3) at a position below the oil pump (7).

7. The hydraulic system for a CNC grinding machine according to claim 1, characterized in that: The outer surfaces of the five upper heat conducting plates (5) and the five lower heat conducting plates (11) located inside the oil tank (3) are all welded with heat conducting fins (13), and the outer surfaces of the five upper heat conducting plates (5) and the five lower heat conducting plates (11) located outside the oil tank (3) are all welded with heat dissipation fins (12).

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