TWM466745U - Hydrostatic working platform - Google Patents

Description

Hydrostatic working platform

This creation relates to a working platform for tool machining, in particular to a hydrostatic working platform capable of accurately controlling its temperature to meet the high precision requirements of the tool machine.

The working platform of the general machine tool has at least one guide rail and a turntable for providing movement and rotation. When the machine tool performs the machining operation, the guide rail and the turntable are easily heated due to friction, and the chilling and contraction physics occurs. Phenomenon, therefore, must be cooled to maintain the temperature to meet the high processing accuracy requirements.

At present, the industry has developed a hydrostatic working turntable, which is popular with high precision, large load and high dynamic response. However, the cooling system is equipped with multiple cooling devices and individual oil paths for heat removal. Exchange efficiency and reaction time still need to be improved. In addition, the guide rails of the working platform are mostly simple double-plane or double-V-type designs. When using double V-shaped guide rails, there will be a large contact area and high stability, but at the same time, the resistance will also increase. The double-plane track will reduce the contact area, but it is necessary to sacrifice the stability of the part. Therefore, the conventional structure still has difficulty in balancing the requirements of high stability and low friction, and must be improved as well.

In view of the aforementioned shortcomings, the main purpose of this creation is to provide a hydrostatic working platform that can improve cooling efficiency.

The second purpose of this creation is to provide a hydrostatic working platform that can simultaneously The guide rail has both high stability and low friction requirements.

To this end, the present invention provides a hydrostatic working platform suitable for a machine tool body, comprising: a liquid static pressure turntable, a moving seat fixed under the hydrostatic pressure turntable, a static pressure track, located at the The moving seat is carried under the moving seat, and a temperature control system has a temperature regulating device and a two-cycle cooling pipeline. The circulating cooling pipeline is connected to the temperature regulating device on one side, and the liquid cooling is respectively connected to the opposite side. The press table and the static pressure track.

In this way, the creation can use the temperature control system to improve the temperature adjustment performance, and can also use the flat or V-type static pressure track to ensure the stability and accuracy of the movement.

Preferably, the static pressure track is formed by a parallel plane track and a V-shaped track, and the plane track and the V-shaped track are respectively provided with an oil injection hole to connect the second circulation cooling pipe.

20‧‧‧Hydraulic pressure turntable

21‧‧‧Hydraulic pressure bearing

22‧‧‧Outer Ring

23‧‧‧ Inner Ring

24‧‧‧Rotary axis

25‧‧‧ Turntable

30‧‧‧Mobile seat

31, 32‧‧‧ Connections

40‧‧‧Static pressure rail

41‧‧‧Ontology

42‧‧‧ plane track

43‧‧‧V-track

221, 421, 431‧‧‧ oil hole

Fig. 1 is a schematic view showing the assembly of a hydrostatic pressure turntable, a moving seat and a static pressure guide in the preferred embodiment of the present invention.

Please refer to FIG. 1 . The hydrostatic working platform provided by the preferred embodiment of the present invention can be applied to a machine tool body, which has a hydrostatic pressure turntable 20, and a movable seat 30 is fixed on the hydrostatic pressure turntable. 20, and a static pressure rail 40 is located below the moving base 30 to carry the moving seat 30. The specific structure of the foregoing components is as follows: The hydrostatic pressure turntable 20 includes: a hydrostatic bearing 21 is carried on Above the moving base 30, a rotating shaft 24 is disposed at the center of the hydrostatic bearing 21 and is driven by a motor (not shown), and a turntable 25 is fixed above the rotating shaft 24 to be synchronously rotated. Among them, the liquid static The pressure bearing 21 is composed of an outer ring 22 and an inner ring 23, and the outer ring 22 is sleeved on the outer circumferential surface of the inner ring 23, and the outer ring 22 is provided with a plurality of oil filling holes 221 to face the inner ring. An oil chamber (not shown) of the bottom surface is oiled, and an oil film is formed on the bottom surface of the inner ring 23, and the inner ring 23 is supported by the oil film pressure to eliminate the friction of the inner ring 23 relative to the outer ring 22. force. The rotating shaft 24 is fixed to the inner ring 23, so that when the motor transmits power to the rotating shaft 24, the load of the rotating shaft 24 and the turntable 25 is transmitted to the inner ring 22 of the hydrostatic bearing 21, Further, the oil film pressure is used to provide support and reduce friction, so that the turntable 25 can be operated at high speed and accurately.

The top of the moving base 30 is used for carrying the hydrostatic turret 20, and two connecting portions 31, 32 are convexly formed on both sides of the bottom portion thereof, and the end faces thereof respectively form a plane and a V-shaped groove.

The static pressure rail 40 has a body 41. The top surface of the body 41 faces a connecting portion 31, 32 and is provided with a parallel plane 42 and a V-shaped rail 43, and the plane rail 42 and the V-track 43 respectively, an oil injection hole 421, 431 is provided for oiling the connecting portions 31, 32, and the oil film pressure is used to provide support and reduce friction.

With the above mechanism, the hydrostatic working platform of the present invention can provide precise rotation and movement, and has the advantages of high precision, large load and high dynamic response.

In addition, the hydrostatic working platform provided by the present invention can be combined with a temperature control system for temperature control, the temperature control system has at least one temperature regulating device and two circulating cooling pipelines, and the circulating cooling pipeline side is connected to the temperature regulating device. The other side is respectively connected to the oil injection hole 221 of the turntable 20 and the oil injection holes 421, 431 of the static pressure rail 40. Each circulating cooling line has a cooling fluid to reciprocate to remove heat generated by the heat source. , can effectively use energy.

In summary, the hydrostatic working platform of the present invention can improve the temperature adjustment efficiency by using the temperature control system, and the static pressure track of the plane track and the V-track. To ensure the stability and accuracy of the movement.

20‧‧‧Hydraulic pressure turntable

21‧‧‧Hydraulic pressure bearing

22‧‧‧Outer Ring

23‧‧‧ Inner Ring

24‧‧‧Rotary axis

25‧‧‧ Turntable

30‧‧‧Mobile seat

31, 32‧‧‧ Connections

40‧‧‧Static pressure rail

41‧‧‧Ontology

42‧‧‧ plane track

43‧‧‧V-track

221, 421, 431‧‧‧ oil hole

Claims (4)

The utility model relates to a hydrostatic working platform, which is suitable for a machine tool body, which comprises: a liquid static pressure turntable; a moving seat fixed under the liquid static pressure turntable; a static pressure track located below the moving seat to take a ride Carrying the mobile seat; and a temperature control system having a temperature regulating device and a two-cycle cooling line, the one side of the circulating cooling line is connected to the temperature regulating device, and the opposite side is respectively connected to the liquid static pressure turntable and the static Press the track. The hydrostatic working platform according to claim 1, wherein the hydrostatic pressure turntable has a hydrostatic bearing placed above the movable seat, and a rotating shaft is disposed at the center of the hydrostatic bearing and is driven by a motor. And a turntable fixed to the top of the rotating shaft for synchronous rotation; wherein the hydrostatic bearing has at least one oil filling hole for connecting the circulating cooling line. The hydrostatic working platform according to claim 2, wherein the hydrostatic bearing is assembled by an outer ring and an inner ring, and the at least one oil hole is disposed on the outer ring and can be oriented toward the inner ring. oiling. The hydrostatic working platform of claim 1, wherein the static pressure track is formed by a parallel plane track and a V-shaped track, and the plane track and the V-shaped track are respectively provided with an oil hole for connecting. Another cycle of cooling the line.