JPH03294178A - Grinding machine - Google Patents

Abstract

PURPOSE:To work with high accuracy the body to be worked with the difference in the temperatures among grinding liquid, plane like tool and work fitting jig being reduced in the working time, by providing a mean which feeds the grinding liquid in advance prior to working to the work fitting jig and a mean which feeds the grinding liquid at all times after the machine starting to the plane like tool. CONSTITUTION:A grinding liquid 17 is fed in advance from a nozzle 18 to a rotating grindstone blade 14 by starting a machine. A work filling jig 12A touchingly fixing the body 11A to be worked next is placed on the cradle 22 provided inside this grinding machine and the temperature is adjusted in advance by feeding a grinding liquid 20. Then, the desired grinding is performed by fixing the work fitting jig 12A, subjected to temperature adjustment, to the chuck 13 of the grinding machine. In this case the grinding liquid 17 is adjusted at its temperature by its being fed to the rotating grindstone blade 14 at all times, the temperatures difference among the grinding liquid 15, rotating grind stone blade 14, the body 11 to be worked and the work fitting jig 12 is eliminat ed and the body 11 to be worked is processed in high accuracy. Meanwhile, the grinding liquid 20 is fed to the succeeding work fitting jig 12A.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a grinding machine in which a mechanical system such as a horizontal rotary surface grinder is temperature-controlled.

Conventional technology In recent years, grinding machines such as horizontal rotary surface grinders,
Efforts are being made to improve accuracy.

FIG. 2 shows an example of a processing section of a conventional grinding machine of this type. In Fig. 2, 1 is a workpiece, 2 is a workpiece mounting jig for attaching and fixing the workpiece 1, and 3 is a chuck for fixing the jig 2 to the grinding machine. . 4 is a rotary grindstone blade, and 5 is a grinding fluid for cooling the processing portion of the workpiece 1 and preventing the rotary grindstone blade 4 from clogging. 6 is a nozzle for supplying the grinding fluid 5. The chuck 3 and the rotary grindstone blade 4 rotate on the shaft 7 in the same direction at different speeds.

Next, the operation of the grinding machine configured as above will be explained. First, in the lower setup, the workpiece 1 is adhesively fixed to the workpiece mounting jig 2, and this is set in the chuck 3 of the grinding machine and rotated in the same direction as the rotary grindstone blade 4 at a different speed, and the workpiece Grinding was performed by feeding the grinding wheel 1 to the rotating grindstone blade 4 side. Further, during machining, a grinding fluid 5, which is temperature-controlled water, is supplied from a nozzle 6 to the machining part of the workpiece 1 to cool the workpiece 1 and also to cool the workpiece 1.
This prevented clogging.

Problems to be Solved by the Invention However, in the conventional configuration described above, the rotary grindstone blade 4
Due to the temperature difference between the workpiece mounting jig 2 and the grinding fluid 5, when the grinding fluid 5 is started to be supplied after establishing the reference between the grinding wheel and the workpiece before machining, the rotary grindstone blade 4 and the grinding fluid 5 are There was a problem in that the workpiece mounting jig 2 was thermally expanded and contracted, and the thickness of the processed workpiece 1 varied, making it impossible to process it with high precision.

The present invention solves these conventional problems, and provides a grinding machine that eliminates the temperature difference between the grinding fluid, the grindstone, and the workpiece mounting jig, and can process the workpiece with high precision. The purpose is to provide

Means for Solving the Problems In order to achieve the above object, the present invention provides a means for constantly supplying grinding fluid to a planar tool after starting the machine, and a means for supplying grinding fluid to a workpiece mounting jig in advance before machining. It is equipped with a means for supplying.

Effect of the present invention With the above-described configuration, the grinding fluid is supplied to both the planar tool and the workpiece mounting jig before machining, thereby reducing the temperature difference between these and the grinding fluid, thereby eliminating the need for conventional methods. The workpiece can be machined with high precision by preventing thermal deformation of the planar tool and workpiece mounting jig that occurs when the grinding fluid is supplied.

EXAMPLE Hereinafter, a grinding machine of the present invention will be explained with reference to the drawings. FIG. 1 shows a schematic configuration of the main parts of a grinding machine according to an embodiment of the present invention.

In FIG. 1, 11 is a workpiece, 12 is a workpiece mounting jig for attaching and fixing the workpiece 11,
13 is a chuck for fixing the jig 12 to the grinding machine. 14 is a rotating grindstone blade, 15 is a workpiece 11
This is a grinding fluid for cooling the machining part and preventing clogging of the rotary grindstone blade 14. 16 is a nozzle that supplies the grinding fluid 15. Reference numeral 17 denotes a grinding fluid that is constantly supplied to the rotary grindstone blade 14 after the machine is started, and adjusts the temperature of the rotary grindstone blade 14 to the same temperature as the grinding fluid 15. 18 is a nozzle that supplies the grinding fluid 17. The chuck 13 and the rotary grindstone blade 14 rotate on the shaft 19 in the same direction at different speeds. 11A is a workpiece to be processed next, and 12A is a workpiece mounting jig for fixing the workpiece 11A. Reference numeral 20 denotes a grinding fluid that is supplied to the workpiece 11A and the workpiece mounting jig 12A before machining to bring them to the same temperature as the grinding fluid 15.

21 is a nozzle for supplying the grinding fluid 20. 22
is a pedestal on which the workpiece mounting jig 12A before processing is placed. The grinding fluid 15, 17, 20 uses a common temperature controlled water, and is supplied to each nozzle 16, 18, 21 from a common source.
Supplied through.

Next, the operation of the grinding machine configured as above will be explained. First, the machine is started and the grinding fluid 17 is supplied to the rotary grindstone blade 14 from the nozzle 18. Then, a workpiece mounting jig 12A to which a workpiece 11A to be processed next is adhesively fixed is placed on a pedestal 22 provided in the grinding machine, and a grinding fluid 20 is supplied to adjust the temperature in advance. Next, this temperature-controlled workpiece mounting jig 12A is fixed to the chuck 13 of a grinding machine, and processing is performed as the workpiece 11 and workpiece mounting jig 12. This processing is performed on the workpiece 11
The chuck 13 and the rotary grindstone blade 14 are rotated in the same direction at different speeds, and the nozzle 16
This is done while supplying the grinding fluid IS. At this time, the grinding fluid 17 is constantly supplied to the rotary grindstone blade 14 to control its temperature, and the temperature difference between the grinding fluid 15, the rotary grindstone blade 14, the workpiece 11, and the workpiece mounting jig 12 is This prevents the occurrence of thermal deformation of the planar tool and workpiece mounting jig due to these temperature differences as in the conventional case, and allows the workpiece 11 to be processed with high precision. During this time, the workpiece mounting jig 12A to which the next workpiece 11A is fixed is placed on the pedestal 22, and is being supplied with the grinding fluid 20 from the nozzle 21.

Effects of the Invention As described above, the grinding machine according to the present invention includes a means for constantly supplying grinding fluid to a flat tool after the machine is started, and a means for supplying grinding fluid to a workpiece mounting jig in advance before machining. Since the present invention includes means for reducing the temperature difference between the grinding fluid, the planar tool, and the workpiece mounting jig during machining, the workpiece can be machined with high precision.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of the main parts of a grinding machine according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of the main parts of a conventional grinding machine. 11...Workpiece, IIA...Next workpiece, 12
...Workpiece mounting jig, 12A...Next workpiece mounting jig, 13...Chuck, 14...Rotary grindstone blade,
15.17.20...Grinding fluid, 16,18.21...
・Nozzle, 19...shaft, 22...cradle.

Claims (1)

[Claims] In a grinding machine in which a planar tool and a workpiece mounting jig to which a workpiece is attached are arranged facing each other, means for constantly supplying grinding fluid to the planar tool after the machine is started; A grinding machine equipped with means for supplying grinding fluid to a workpiece mounting jig before processing.