JPH02269565A - Grinding liquid feed mechanism in machine tool - Google Patents

Abstract

PURPOSE:To prevent a grinding liquid feed passage from interfering with other component parts so as to enhance the operability and processability of the mechanism stated in the title by providing the grinding liquid feed passage within an attachment head. CONSTITUTION:An attachment head (grindstone head) 11 provided with a processing tool (rotating grindstone) 14, and a table 4 holding works W are shifted relative to each other, and the works W are each processed by the processing tool 14 as a grinding liquid is fed from a grinding liquid feed nozzle 19. In this case, the grinding liquid feed passage 22 provided in the attachment head 11 and the grinding liquid feed nozzle 19 are connected together at the front end portion of the attachment head 11. Thus, by providing the grinding liquid feed passage 22 within the attachment head 11, the passage 22 is prevented from interfering with other component parts.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a grinding fluid supply mechanism in a machine tool such as a grinding machine that grinds a workpiece using a rotating grindstone.

[Prior Art] Conventionally, for example, there has been a type of grinding machine in which a grinding wheel head equipped with a rotating grindstone is moved up and down, and a table supporting a workpiece is moved left and right and back and forth, or a grinding wheel head is moved up and down and back and forth to move the table. In a grinding machine that moves left and right,
Since the grinding fluid is supplied to the grinding point by moving the grinding wheel head, connect a flexible hose for supplying the grinding fluid with a length that allows the movement of the grinding wheel head to the nozzle provided on the grinding wheel head. This is done by

[Problem B to be solved by the invention] However, when the above-mentioned supply mechanism requires a large amount of grinding fluid, when high-pressure grinding fluid is required, or when a completely waterproof cover is installed to prevent the grinding fluid from scattering, A problem arises. That is, if the length of the flexible hose is set to allow movement of the grinding wheel head in the front and back, left and right, and up and down directions,
Interference with other components occurs, and many mechanical configuration problems occur, such as connections being made separately at left and right, front and rear, and upper and lower parts.

This invention was made to solve the above problems, and its purpose is to achieve high workability and processability, even in a grinding machine equipped with a completely waterproof cover, without interfering with other components. An object of the present invention is to provide a grinding fluid supply mechanism for a machine tool.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention relatively moves a machine (d head) provided with a processing tool and a table holding a workpiece, and also supplies grinding fluid from a grinding fluid supply nozzle. In the machine tool, the workpiece is machined by the processing tool while supplying grinding fluid to the mounting head.
11 passages are provided, and this grinding liquid supply passage is connected to the grinding liquid supply nozzle at the front end of the mounting head.

[Function and Effect] Therefore, since the grinding fluid supply passage is provided inside the grinding wheel head, even in a grinding machine equipped with a completely waterproof cover, the grinding fluid supply passage does not interfere with other components, improving work efficiency. and processability can be improved.

[Example] Hereinafter, an example in which the present invention is embodied in a grinding machine will be described as a first example.
This will be explained according to Figure 2.

A saddle 3 is provided on the top surface of the bed 2 of the grinding machine 1, and a table 4 is supported on this I-rule 3. As the motor 5 rotates forward and backward, it is reciprocated in the left and right directions.

As shown in FIG. 2, a full cover 6 that covers the top of the tea fur 4 is fixed to the jacket 1-3 through a support part 7,
A sliding door 8 is provided at the center of the front surface.

As shown in the second part, a column 9 is supported on the head 2 at the rear of the table 4, and a column drive motor 10 provided at the rear end of the bed 2 is rotated in forward and reverse directions. The column 9 is reciprocated in the front-rear direction (left-right direction in FIG. 2). At the upper front end of the column 9, a grinding wheel head 11 as a mounting head is installed so as to be able to reciprocate downwards, and is reciprocated up and down by a head drive motor 12 installed at the second part of the column 9. .

The grindstone bed 11 extends on the uI recorder table 4 by penetrating between the bellows-shaped shielding members 17 provided on the rear side of the full cover 6, and the grindstone bed 11 extends on the uI recorder table 4 by penetrating between the bellows-shaped shielding members 17 provided on the two rear sides of the full cover 6. A rotary grindstone 14 as a covered processing tool is rotatably supported.

A main shaft 15 of a rotary grindstone 14 is supported through the grindstone head 11, and its end is connected to a grindstone drive motor 16 disposed within the column 9.

A grinding fluid supply pipe 18 serving as a grinding fluid supply passage is disposed inside the grinding wheel head 11 in parallel with the main shaft 15, and one end of the pipe is led out into the grinding wheel cover 13 to supply the grinding fluid provided outside the grinding wheel cover 13. It is connected to a supply nozzle 19 through which grinding fluid is supplied to the grinding point between the rotary grindstone 14 and the workpiece W.

As shown in FIG. 1, an NC control device 21 is provided on one side of the head 2 via a rotating arm 20 so that its position can be changed.
, 10, 12, a grindstone drive motor 16, and the like.

The workpiece W is supported on the table 4 of the grinding machine 1 configured as described above, and the column drive motor 10 is rotated in the forward or reverse direction by the NC control device 21 to set the forward and backward position of the rotary grindstone 14. , head drive motor 12
When the grinding machine 1 is started by rotating the rotary whetstone 14 in the forward or reverse direction to set the lower position of the rotary whetstone 14, the rotary whetstone 14 is rotated at high speed, and the table drive motor 5 is rotated to rotate the table drive motor 5. 4 is fed, the grinding liquid is supplied from the grinding liquid nozzle 19 to the grinding point, and the outer surface of the workpiece W is ground.

Now, in this embodiment, the grinding fluid supply pipe 18 is arranged so as to pass through the grinding wheel head 11 in the longitudinal direction thereof, and the end thereof is guided out of the grinding wheel cover 13 and connected to the grinding fluid supply nozzle 19. Unlike grinding machines using conventional flexible hoses, there is no interference between the grinding fluid supply pipe 18 and other components, and workability and processability can be improved.

In the above embodiment, the grinding fluid supply pipe 18 was arranged so as to pass through the inside of the grinding wheel head 11, but as shown in FIG. By forming a pair of grinding liquid supply passages 22 and supplying temperature-controlled grinding liquid through the grinding liquid supply 1ffl passages 22, the heat generated by the grinding wheel head 11 due to rotation of the main shaft 15 can be cooled down.

[Brief explanation of drawings]

FIG. 1 is a front view showing one embodiment of the present invention as a grinder, FIG. 2 is a side view of the same, and FIG. 3 is a sectional view showing only the main parts of another embodiment. In the figure, 4 is a table, 11 is a grindstone head as a mounting head, 14 is a rotary grindstone as a processing tool, 18 is a grinding fluid supply pipe as a grinding fluid supply passage, 22 is a grinding fluid supply passage,
19 is a grinding fluid supply nozzle, and W is a workpiece.

Claims (1)

[Claims] 1. The mounting head (11) provided with the processing tool (14) and the table (4) holding the workpiece (W) are moved relative to each other, and the grinding fluid is supplied from the grinding fluid supply nozzle (19). In the machine tool, the workpiece (W) is machined by the processing tool (14) while being supplied with grinding fluid supply passages (18, 2) in the mounting head (11).
2), and the grinding fluid supply passage (18, 22) and the grinding fluid supply nozzle (19) are connected at the front end of the mounting head (11).