Five-axis mechanical oil circuit improvement device

Abstract

The utility model belongs to oil circuit distributor technical field especially, it is five -axis mechanical oil circuit improvement device, including main shaft box, rotary table main part and the rotary table tail part of setting in rotary table main part one side, rotary table main part is connected with main shaft box through flange, the rotary table tail part is away from rotary table tail part one side and is provided with oil circuit distribution part, the oil outlet of oil circuit distribution part extends to rotary table main part in fixed communication has the oil pipe, one end of oil pipe is provided with hydraulic pressure distribution valve. This five -axis mechanical oil circuit improvement device, through setting hydraulic pressure distribution valve, realizes the adjustment to oil flow, flow and pressure, utilizes PFA fluorine dragon pipe to replace traditional nylon pipe simultaneously, to improve the service life of oil pipe, reduce the leakage rate of oil pipe, and utilize PTEE composite sealing ring to replace traditional rubber sealing ring, cooperate with magnetic fluid sealing ring, improve the sealing performance, still utilize cooling pipe to the oil temperature cooling, and then improve overall service life.

Description

Technical Field

[0001] This utility model relates to the field of oil circuit distributor technology, and in particular to an improved five-axis mechanical oil circuit device. Background Technology

[0002] Chinese Patent CN222791396U discloses a five-axis rotary table oil circuit distributor, comprising: an oil circuit distribution section, which includes a bearing, an inner shaft, an outer sleeve, an oil inlet, and an oil outlet; the bearing is connected to the inner shaft at its center, and the outer sleeve is fixedly connected to the outer surface of the inner shaft; the oil inlet is symmetrically connected to the front and back ends of the outer sleeve, and the oil outlet is connected to the upper part of one end of the outer sleeve; the oil inlet, the inner cavity of the outer sleeve, and the oil outlet are interconnected; an O-ring seal is filled at the connection gap between the outer sleeve and the inner shaft, with one side of the O-ring extending out of the connection gap; a retaining spring is fixedly connected to one end of the inner shaft, and the retaining spring is fastened to the inner wall of the bearing at its center. This design ensures normal oil supply regardless of the rotation of the five-axis rotary table, prevents breakage or damage, and effectively saves costs.

[0003] However, when the oil distributor in the aforementioned patent is used, it is generally connected directly to the oil outlet by an oil pipe, so that the lubricating oil at the oil outlet flows out directly through the oil pipe. Due to the high temperature and high pressure, when the oil temperature exceeds 55°C for a long time, the oil oxidation rate is accelerated, which can easily lead to an increase in the system leakage rate. At the same time, the rubber seal is prone to plastic deformation at temperatures above 50°C and under high pressure, thereby shortening its service life and affecting the efficiency of use in the five-axis machining process. Utility Model Content

[0004] Based on the aforementioned technical problems, this utility model proposes an improved five-axis mechanical hydraulic circuit device.

[0005] This utility model proposes an improved five-axis mechanical hydraulic circuit device, including a spindle box, a rotary table body, and a rotary table tail located on one side of the rotary table body. The rotary table body is connected to the spindle box via a flange. An oil distribution section is provided on the side of the rotary table tail away from the rotary table body. The oil outlet of the oil distribution section extends into the rotary table body and is fixedly connected to an oil pipe. A hydraulic distribution valve is provided at one end of the oil pipe.

[0006] Preferably, the oil pipe is made of PFA Teflon tubing.

[0007] Preferably, a sleeve is fixedly fitted onto the outer surface of the hydraulic distribution valve, and a cooling pipe is provided on the inner wall of the sleeve. The two ends of the cooling pipe extend out of the tail of the turntable through pipes.

[0008] Preferably, the hydraulic distribution valve has magnetic fluid sealing rings on both sides of its surface, and the sleeve is located between the two magnetic fluid sealing rings.

[0009] Preferably, a sealing ring is provided at the root of the connector near the oil pipe of the magnetohydrodynamic sealing ring, and the sealing ring is a PTEE composite sealing ring.

[0010] Preferably, the sealing ring is fixed between the magnetohydrodynamic sealing ring and the oil pipe connector by an anaerobic adhesive, wherein the anaerobic adhesive is Loctite 518 sealant.

[0011] The beneficial effects of this utility model are as follows:

[0012] By setting up a hydraulic distribution valve, the flow direction, flow rate, and pressure of the oil can be regulated. At the same time, PFA Teflon tubing is used to replace traditional nylon tubing, thereby improving the service life of the oil tubing and reducing the leakage rate. PTEE composite sealing rings are used to replace traditional rubber sealing rings, in conjunction with magnetic fluid sealing rings, to improve sealing performance. Cooling pipes are also used to cool the oil, thereby improving the overall service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an improved five-axis mechanical hydraulic circuit device proposed in this utility model;

[0014] Figure 2 This is a three-dimensional view of the main structure of the turntable of an improved five-axis mechanical hydraulic circuit device proposed in this utility model;

[0015] Figure 3 This is a three-dimensional view of the hydraulic distribution valve structure of an improved five-axis mechanical oil circuit device proposed in this utility model;

[0016] Figure 4 This is a three-dimensional view of the oil pipe structure of an improved five-axis mechanical oil circuit device proposed in this utility model;

[0017] Figure 5 A three-dimensional view of the sealing ring structure of an improved five-axis mechanical oil circuit device proposed in this utility model;

[0018] Figure 6 This is a perspective view of the sleeve structure of an improved five-axis mechanical oil circuit device proposed in this utility model;

[0019] Figure 7 This is a three-dimensional view of the cooling pipe structure of an improved five-axis mechanical oil circuit device proposed in this utility model.

[0020] In the diagram: 1. Spindle box; 2. Turntable body; 3. Turntable tail; 4. Oil distribution section; 5. Oil pipe; 6. Hydraulic distribution valve; 7. Sleeve; 8. Cooling pipe; 9. Magnetohydrodynamic sealing ring; 10. Sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-7 A five-axis mechanical hydraulic circuit improvement device includes a spindle box 1, a turntable body 2, and a turntable tail 3 disposed on one side of the turntable body 2. The turntable body 2 is connected to the spindle box 1 through a flange. An oil circuit distribution section 4 is disposed on the side of the turntable tail 3 away from the turntable body 2. The oil outlet of the oil circuit distribution section 4 extends into the turntable body 2 and is fixedly connected to an oil pipe 5. A hydraulic distribution valve 6 is disposed at one end of the oil pipe 5.

[0023] To reduce the leakage rate, oil pipe 5 uses PFA Teflon tubing instead of traditional nylon tubing. PFA Teflon tubing is heat resistant to 260℃, which reduces the leakage rate.

[0024] To achieve cooling, a sleeve 7 is fixedly fitted onto the outer surface of the hydraulic distribution valve 6. A cooling pipe 8 is provided on the inner wall of the sleeve 7. Both ends of the cooling pipe 8 extend out of the turntable tail 3 through pipes. Cooling water is transported inward through the pipes, so that the cooling water enters the cooling pipe 8 and flows out from the other pipe, forming a cooling water circulation cooling effect. This facilitates the removal of heat and prevents the hydraulic distribution valve 6 from overheating, which could lead to performance degradation or seal aging. This further reduces the oil temperature. At the same time, the sleeve 7 not only fixes the cooling pipe 8, but also reduces the heat of the hydraulic distribution valve 6 from being conducted to surrounding components, preventing thermal deformation.

[0025] To improve sealing efficiency, magnetic fluid sealing rings 9 are provided on both sides of the surface of the hydraulic distribution valve 6. The sleeve 7 is located between the two magnetic fluid sealing rings 9. The magnetic fluid sealing rings 9 utilize the sealing plug formed by the magnetic fluid under the action of the magnetic field to effectively prevent oil leakage and isolate the external environment to prevent contamination. When the hydraulic distribution valve 6 rotates or vibrates, the magnetic fluid can follow the movement to maintain the sealing effect, effectively prevent oil leakage, and protect the cooling pipe 8 and the hydraulic distribution valve 6.

[0026] To prevent oil leakage at the connection of oil pipe 5, a sealing ring 10 is provided at the root of the connection of the magnetic fluid sealing ring 9 near the oil pipe 5. The sealing ring 10 is a PTFE composite sealing ring. The PTFE composite sealing ring has excellent corrosion resistance, high temperature resistance and low friction coefficient, which can effectively prevent oil leakage and adapt to high pressure and high temperature environments.

[0027] To prevent displacement of the sealing ring 10, it is fixed between the magnetic fluid sealing ring 9 and the oil pipe 5 connector using anaerobic adhesive. The anaerobic adhesive is Loctite 518 sealant. The anaerobic adhesive firmly fixes the sealing ring 10 between the magnetic fluid sealing ring 9 and the oil pipe 5 connector, preventing the sealing ring 10 from shifting or falling off due to vibration or pressure fluctuations. The flexibility of Loctite 518 sealant can adapt to the slight displacement of the sealing ring 10, ensuring long-term stable sealing and preventing seal failure due to vibration or pressure fluctuations. At the same time, Loctite 518 sealant is non-corrosive and will not damage the PTFE sealing ring 10 or the metal surface, thus extending the service life of the sealing ring 10.

[0028] By setting up a hydraulic distribution valve 6, the direction, flow rate and pressure of the oil can be regulated. At the same time, PFA Teflon tubing is used to replace traditional nylon tubing, thereby improving the service life of oil tubing 5 and reducing the leakage rate of oil tubing 5. PTEE composite sealing ring 10 is used to replace traditional rubber sealing ring 10, and in conjunction with magnetic fluid sealing ring 9, the sealing performance is improved. Cooling pipe 8 is also used to cool the oil temperature, thereby improving the overall service life.

[0029] Working principle: When in use, oil is injected into the five-axis machine through the oil distribution section 4. The oil enters the oil pipe 5 through the oil outlet, and the hydraulic distribution valve 6 on the oil pipe 5 regulates the oil flow direction, flow rate and pressure.

[0030] At the same time, cooling water is transported to the cooling pipe 8 inside the sleeve 7 through pipelines, thereby cooling the oil temperature. The two ends of the cooling pipe 8 extend to the outside of the turntable tail 3 for easy maintenance and temperature monitoring.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A five-axis mechanical hydraulic circuit improvement device, comprising a spindle box (1), a rotary table body (2), and a rotary table tail (3) disposed on one side of the rotary table body (2), wherein the rotary table body (2) is connected to the spindle box (1) via a flange, characterized in that: An oil distribution section (4) is provided on the side of the turntable tail (3) away from the turntable body (2). The oil outlet of the oil distribution section (4) extends into the turntable body (2) and is fixedly connected to an oil pipe (5). A hydraulic distribution valve (6) is provided at one end of the oil pipe (5).

2. The five-axis mechanical hydraulic circuit improvement device according to claim 1, characterized in that: The oil pipe (5) is made of PFA Teflon tubing.

3. The five-axis mechanical hydraulic circuit improvement device according to claim 1, characterized in that: A sleeve (7) is fixedly fitted onto the outer surface of the hydraulic distribution valve (6). A cooling pipe (8) is provided on the inner wall of the sleeve (7). Both ends of the cooling pipe (8) extend out of the tail of the turntable (3) through pipes.

4. The five-axis mechanical hydraulic circuit improvement device according to claim 3, characterized in that: The hydraulic distribution valve (6) is provided with magnetic fluid sealing rings (9) on both sides of its surface, and the sleeve (7) is located between the two magnetic fluid sealing rings (9).

5. The five-axis mechanical hydraulic circuit improvement device according to claim 4, characterized in that: The magnetic fluid sealing ring (9) is provided with a sealing ring (10) near the root of the connector of the oil pipe (5), and the sealing ring (10) is a PTEE composite sealing ring.

6. The five-axis mechanical hydraulic circuit improvement device according to claim 5, characterized in that: The sealing ring (10) is fixed between the magnetic fluid sealing ring (9) and the oil pipe (5) connector by anaerobic adhesive, which is Loctite 518 sealant.

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