JPH0321875Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention consists of two tool rests that are movable up and down on a slant bed in the direction of the spindle axis and in a direction transverse to the axis of the spindle; 4-axis controlled NC consisting of a tailstock placed between the turrets
Regarding the saddle structure of turning machine tools.

(Prior Art) Conventionally, as a saddle structure of this type of turning machine tool, for example, two saddles are arranged vertically on a slant bed along the inclined surface of the slant bed, and the saddles are arranged vertically along the slanted surface of the slant bed, and A tool rest is supported on each saddle so as to be slidable in a direction along the inclined surface of the slant bed (hereinafter referred to as the X-axis direction). There is a saddle structure for a 4-axis controlled NC turning machine tool in which a tailstock is disposed between both tool turrets, and the tailstock is placed on a slant bed so as to be slidable in the Z-axis direction.

In the saddle structure of such a 4-axis controlled NC turning machine tool, there is a gap between the lower saddle of the two saddles and the tailstock, so chips, etc. can be trapped in the gap. Since there is no means to remove the accumulated chips, etc., the accumulated chips, etc. enter the sliding part of the saddle, causing friction and
There have been problems such as increased sliding resistance of the saddle due to twisting, energy loss, and decreased accuracy due to thermal expansion of accumulated chips.

(Problems to be solved by the invention) The present invention was made by focusing on such conventional problems. The object of the present invention is to provide a saddle structure for a turning machine tool that prevents chips and the like from entering the sliding portion of the saddle.

(Means for solving the problem) The gist of the present invention to achieve this purpose is as follows:
a saddle that is provided in the vertical direction of the bed and is slidable while holding a tool rest; a passage provided in this saddle that guides a flowing liquid in order to treat sediment that falls and accumulates from the upper part of this saddle; It has a shielding plate for discharging the flowing liquid guided into this passage from the upper part of the saddle to the surroundings, and includes a discharge port provided at the top of the saddle, and a shield plate provided in the saddle near this discharge port, and a shield plate provided in the saddle near the discharge port. a first inclined plate having an inclined surface downward from the discharge port along the sliding direction of the saddle for discharging deposits on the saddle along the sliding direction of the saddle with a flowing liquid that is ejected; A first inclined plate is provided on the saddle and has an inclined surface downward from the first inclined plate in order to discharge the sediment discharged from above the first inclined plate downwardly from the saddle using the flowing liquid. The saddle structure of a turning machine tool consists of two inclined plates.

(Function) And, in the saddle structure of the above-mentioned turning machine tool,
Chips and the like accumulated in the gap are caused to flow down below the slant bed by the flowing liquid scattered from around the discharge port by the shielding plate.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 to 3 show an embodiment of the present invention. In this embodiment, the present invention is applied to the saddle structure of a 4-axis controlled NC turning machine tool.

As shown in FIG. 3, the saddle structure 1 of a 4-axis controlled NC turning machine tool includes a slant bed 2 on which an inclined surface 2a is formed, and on the slant bed 2,
are arranged vertically along the inclined surface 2a, and the Z
two saddles 3 and 4 mounted so as to be slidable in the axial direction (direction perpendicular to the plane of the paper); a tool rest 30 supported on each saddle 3 and 4 so as to be slidable in the X-axis direction; 40, and a slant bed 2 disposed between the two tool rests 30 and 40 and slidable in the Z-axis direction.
and a tailstock 5 placed on top.

The lower saddle 3 has sloped surfaces 4b, which are first sloped plates, formed on both sides of the ridgeline 4e. Further, an inclined guide plate 4c, which is a second inclined plate provided on a downward slope, is provided to allow coolant, chips, etc. to fall.

As shown in FIG.
and are slidably fitted in the Z-axis direction. A passage 41 is formed in the saddle 4 to guide a flowing liquid such as coolant toward the gap 6 between the base portion 5a of the tailstock 5 and the saddle 4.

The discharge port 41b of the passage 41 is connected to the inclined surfaces 4b, 4.
b and near the apex of the inclined guide plate 4c. That is, as shown in FIG. 2, the slopes 4b, 4b of the saddle 4 facing the base portion 5a are
The ridge line e is formed to become lower as it goes in the direction of the broken line arrow. In addition, the inclined guide plate 4
c is formed so that it becomes lower as it goes in the direction of the broken line arrow, with the baffle plate 4d portion described later as a ridge line. The discharge port 41d is connected to the ridgeline 4e of the roof formed by the inclined surfaces 4b, 4b and the inclined guide plate 4c.
It is located near the intersection with

The coolant is configured to flow down from the inlet 41a of the passage 41 toward the discharge port 41b. A shielding plate 7 is attached to the discharge port 41b to scatter the guided coolant from around the discharge port 41b. The upper end of the shielding plate 7 is fixed to the saddle 4, and as shown in FIG. 2, the coolant is sprayed from the left and right ends and the lower end of the shielding plate 7 in the direction of the arrow.

In addition, as shown in FIG. 2, the inclined surfaces 4b, 4b
The third
As shown in the figure, an inclined guide plate 4c is attached to the saddle 4 and is formed in a downward slope so as to allow coolant, chips, etc. to fall into a tank 8 provided at the lower end of the slant bed 2.

As shown in FIG. 1, the slant bed 2 includes a linear guide rail 2b and a guided member 4a.
A baffle plate 4 is formed to prevent coolant, chips, etc. from entering the groove 2c, and a baffle plate 4 is formed to prevent coolant, chips, etc. from entering the groove 2c.
d is fixed to the saddle 4.

In the saddle structure 1 of the four-axis controlled NC turning machine tool having the above configuration, the coolant flowing from the inlet 41a of the passage 41 is guided to the discharge port 41b through the passage 41.

The coolant guided to the discharge port 41b hits the shielding plate 7 and scatters from the left, right and lower ends of the shielding plate 7 in the direction of the arrow in FIG. 2.

This scattered coolant blows away chips and the like accumulated in the gap 6 during machining of the workpiece.

This scattered coolant blows away chips and the like accumulated in the gap 6 during machining of the workpiece.

The chips and the like blown away by the scattered coolant fall on the inclined surfaces 4b, 4b inclined in the direction indicated by the broken line arrow in FIG.

Coolant falling from the inclined surfaces 4b, 4b,
The chips and the like are guided by the inclined guide plate 4c and fall in the direction of the dashed arrow, and are guided into the tank 8.

In the above embodiment, the inclined surfaces 4b, 4b are formed as inclined surfaces descending from the ridgeline 4e on both sides.
The inclined surfaces 4b, 4b may be formed to have one side inclined with the position 4f or 4g as a ridgeline.

Furthermore, the saddle structure of the turning machine tool applied to this invention is based on the 4-axis controlled NC shown in the above embodiment.
The present invention is not limited to the saddle structure of a turning machine tool.

(Effect of the invention) According to the saddle structure of the turning machine tool according to the invention, chips etc. accumulated in the gap between the saddle and the tailstock are removed by the flowing liquid scattered from around the discharge port by the shielding plate. Since the chips and the like are caused to flow down below the slant bed, the chips and the like do not enter the sliding portion of the saddle, which increases the sliding resistance of the saddle and causes energy loss. This prevents the accuracy from decreasing due to dust or thermal expansion of chips, etc.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention, with Figure 1 being a partially cutaway front view of the main part, Figure 2 being a view in the direction of the arrows in Figure 1, and Figure 2 being a partially cutaway front view of the main part. FIG. 3 is a front view showing the whole. 1... Saddle structure of 4-axis controlled NC turning machine tool (turning machine tool), 2... Slant bed, 4
... Saddle, 5 ... Tailstock, 6 ... Gap, 7 ...
Shielding plate, 40...turret, 41...passage, 41b
...Discharge port.

Claims (1)

[Scope of Claim for Utility Model Registration] A saddle that is provided in the vertical direction of the bed and is slidable while holding a tool rest; A passage for guiding the flowing liquid, a shielding plate for discharging the flowing liquid guided to the passage from the upper part of the saddle to the surroundings, a discharge port provided at the top of the saddle, and a saddle near the discharge port. and has an inclined surface downward from the discharge port along the sliding direction to discharge the deposits on the saddle along the sliding direction of the saddle with the flowing liquid spouted from the discharge port. a first sloping plate; a sloping surface below the first sloping plate for discharging sediment discharged from above the first sloping plate downwardly from the saddle with the flowing liquid; and a second inclined plate provided on the saddle.