JPH0419067A - General purpose grinding machine capable of fully automatic grinding - Google Patents

Abstract

PURPOSE:To fully automate a general purpose grinding machine at a low cost by providing a control panel with a mode switch for switching input modes, and connecting an input device for setting grinding conditions externally to the control panel. CONSTITUTION:When the input mode of a mode switch 18 provided at a control panel 15 is placed in a general purpose function mode, a control panel 16 originally connected to the control panel 15 of a general purpose grinding machine sets general grinding conditions such as finishing measure, cutting edge quantity and longitudinal feeding quantity for cutting automatically into work 13 to the specified depth until a grinding device reaches the specified measure and stopping the machine at the specified measure, and these general grinding conditions are inputted into the RAM of the control panel 15. The grinding device is controlled according to these grinding conditions stored in the RAM of the control panel 15, that is, a spindle head 7 is moved vertically along a column 3 while rotating a grinding wheel 8 fitted at the spindle head 7, and the work 13 placed on a table 2 and fixed by a chuck 12 is moved in the specified direction to grind the work 13 into the specified measure.

Description

[Detailed description of the invention]

[Field of Industrial Application] The present invention relates to a general-purpose grinding machine, and in particular, the present invention relates to a general-purpose grinding machine, and in particular, a system for setting and inputting grinding conditions for fully automatic grinding including grinding and dressing without changing the operating functions on the hardware. This article relates to a general-purpose grinder that is capable of automatic grinding.

[Conventional technology]

As a conventional fully automatic grinding machine, a program is created by adding an NG device, which executes a series of operations.
C-grinding machines and special-purpose grinding machines that incorporate a microcomputer, a sequencer, etc. and have an automated sequence installed from the beginning to execute a series of operations are known. On the other hand, as an inexpensive grinder that can perform automatic grinding to a certain extent, by setting conditions such as finish dimensions, feed rate around 1 depth of cut, etc., grinding will be performed automatically until the set dimensions are reached. There is a general purpose grinding machine where the machine stops. [Problems to be Solved by the Invention] As described above, conventional fully automatic grinding machines are either NC grinders or dedicated grinders, and these NC grinders and dedicated grinders have lower performance compared to general-purpose grinders. It was inflexible and expensive. In contrast, conventional general-purpose grinders have a function that automatically makes cuts until a predetermined size is reached, and then automatically stops, allowing the machine to grind all at once without dressing the grindstone midway through. In some cases, it is inexpensive and easy to use. However, even with this conventional general-purpose grinder, for example, when repeatedly grinding, the grindstone must be dressed during grinding to a predetermined size, and dressing reduces the diameter of the grindstone. If grinding is continued under the initially set grinding conditions, the product will not be finished to the specified dimensions. Therefore, the reduced grindstone diameter due to dressing is
The worker corrected the dressing and finished it to the predetermined dimensions. In this way, with conventional general-purpose grinders, it is not possible to set the conditions for fully automatic grinding, including the grindstone dressing process and dressing correction, which are performed during repeated grinding, using only the functions on the operation panel. The problem is that it cannot be done. The present invention is capable of fully automatic grinding that allows setting input of grinding conditions for fully automatic grinding, including grinding and dressing, to be performed inexpensively on a general-purpose grinder without changing the operating functions on the hardware. The purpose is to provide a general-purpose grinder.

[Means to solve the problem]

To achieve the above objective, in a general-purpose grinding machine capable of fully automatic grinding, a workpiece placed on a table that slides in a predetermined direction and fixed by a chuck is moved to a spindle head that is attached to a column so that it can move up and down. A grinding device that rotates a rotatably mounted grindstone to grind to a predetermined size, and a control that controls the grinding operation of the grinding device based on pre-stored grinding conditions such as finishing dimensions, depth of cut, and forward/backward feed amount. In a general-purpose grinding machine consisting of a control panel and an operation panel for inputting grinding conditions to the control panel, the control panel is provided with a mode switch for switching input modes, and an input device for setting grinding conditions is externally connected, The mode switch enables switching between fully automatic function and general-purpose function.

[Effect]

If the input mode of the mode switch provided on the control panel is set to general-purpose function mode, the grinding device will reach the specified size using the operation panel originally connected to the control panel of the general-purpose grinding machine. The finishing dimensions, depth of cut,
Input general-purpose grinding conditions such as forward and backward feed amount into the RAM of the control panel. The grinding device is driven and controlled according to the general-purpose grinding conditions stored in the RAM of this control panel. In other words, the spindle head is moved up and down along the column while rotating the grindstone attached to the spindle head, and the work placed on the table and fixed by the chuck is moved in a predetermined direction to grind the work to a predetermined size. . In addition, the input mode of the mode switch installed on the control panel can be switched to the fully automatic grinding function mode, and the dressing process of the grinding wheel performed when repeatedly grinding the rug, including the dressing correction, can be fully automated from the externally connected input device. Setting values for grinding conditions such as finishing dimensions, depth of cut, and forward/backward feed amount for machining are input into the control panel's RAM to perform fully automatic grinding condition settings. The grinding device is driven and controlled in accordance with the fully automatic grinding conditions stored in the RAM of this control panel. In other words, the spindle head is moved up and down along the column while rotating the grindstone attached to the spindle head, and the workpiece placed on the table and held and fixed by the chuck is moved in a predetermined direction until the workpiece has a predetermined size. Cut. In order to cut the workpiece to the specified dimensions, the grindstone is dressed a predetermined number of times under fully automatic grinding conditions, and after each dressing the grindstone is moved to the set cutting dimension position that has been corrected for dressing. Cutting the workpiece to predetermined dimensions. By doing this, it can be used as a general-purpose grinder for grinding without changing the operating functions on the hardware. Setting input of grinding conditions for fully automatic grinding including dressing can be performed at low cost.

【Example】

An embodiment of the present invention will be described below. 1 and 2, one embodiment of a general-purpose grinding machine capable of fully automatic grinding according to the present invention is shown. In the figure, 1 is a bed on which a table 2 and a column 3 are placed. The table 2 is configured to be slidable in the front-rear direction of the drawing in FIG. Further, the column 3 is configured to be movable in the direction of arrow A in FIG. 1 via a screw 6 that engages with the gear 4 by rotating the gear 4 with a servo motor 5. 7 is a spindle head, and a grinding wheel 8 configured in a disk shape
It rotatably supports the. This spindle head 7 is configured to be movable in the direction of arrow B in FIG. 1 via a screw 11 that engages with the gear 9 by rotating the gear 9 with a servo motor 10. Reference numeral 12 denotes a chuck, which is attached to the top of the table 2 and fixes the workpiece 13. This work 13 is ground by a grindstone 8 provided on the spindle head 7. 14 is a dresser for dressing the outer periphery of the grindstone 8. This bed 1, table 2, column 3, spindle head 7, grindstone 8, chuck 12, dresser 1
4 constitutes a grinding device [100]. Reference numeral 15 denotes a control panel R that contains grinding conditions such as finishing dimensions, depth of cut, and longitudinal feed amount for grinding to predetermined dimensions.
The grinding conditions are stored in the AM, and the grinding device gloo is driven and controlled based on the stored grinding conditions. 16 is an operation panel, and the finishing dimensions are stored in the RAM of the control panel 15.
General-purpose grinding conditions such as depth of cut and forward/backward feed amount are input. Reference numeral 17 is an input device externally connected to the control panel 15 in addition to the operation panel 16, and is stored in the RAM of the control panel 15 for fully automatic processing including the grindstone dressing process and dressing correction performed during repeated grinding of the rug. Finished dimensions, depth of cut,
Fully automatic grinding condition setting is performed by inputting each set value of grinding conditions such as the amount of longitudinal feed. Specifically, this input device includes a commercially available personal computer.
This can be easily realized by using an inexpensive personal computer. Reference numeral 18 denotes a mode switch, which switches between a general function mode in which general-purpose grinding conditions are input through the operation panel 16 and a fully automatic function mode in which fully automatic grinding conditions are input through the input device 17, which are input into the RAM of the control panel 15. It is. Next, the operation will be explained. For general-purpose grinding, control! The input mode of the mode switch 18 provided at 4115 is set to the general function mode. After that, using the operation panel 16 originally connected to the control panel 15 of the general-purpose grinding machine, general-purpose grinding conditions such as finishing dimensions, feed amount around 1 depth of cut, etc. are controlled. 15 RAM and set it. The control panel 15 drives and controls the grinding device 100 according to general-purpose grinding conditions stored in the RAM of the control panel 15. That is, the spindle head 7 is moved up and down along the column 3 while rotating the grindstone 8 attached to the spindle head 7, and the workpiece 13 placed on the table 1 and fixed by the chuck 12 is moved in a predetermined direction. The workpiece 13 is ground to a predetermined size. In the case of fully automatic grinding, the input mode of the mode switch 18 provided on the control panel 15 is set to the fully automatic function mode. Thereafter, using the input device 17, for example, the dressing process of the grindstone 8 performed during repeated grinding as shown in Table 1,
Setting values for grinding conditions such as finishing dimensions, feed rate for one depth of cut, etc. for fully automatic machining including dressing correction are input into the RAM of the control panel 15 and set. The control panel 15 drives and controls the grinding device w100 according to the fully automatic grinding conditions stored in the RAM of this control g115. That is, while rotating the grindstone 8 attached to the spindle head 7, the spindle head 7 is moved to the column 3.
The chuck 1 moves up and down along the
The workpiece 13 gripped and fixed by the grinder 2 is moved in a predetermined direction to grind the workpiece 13 to a predetermined size. When grinding the workpiece 13 to a predetermined dimension, the grindstone 8 is dressed a predetermined number of times under fully automatic grinding conditions, and after each dressing, the grindstone 8 is placed at the set grinding dimension position corrected by the dressing. The workpiece 13 is moved and ground to a predetermined size. (Blank below) In this way, the input device fl17 inputs grinding conditions and data other than those set by the operation panel 16 (see Table 1), downloads the data into the RAM of the control panel 15, and stores the data in the RAM of the control panel 15. A series of dressing and grinding operations are carried out by reading the . An example of this fully automatic grinding is shown in FIG. 2. That is, the grindstone 8 descends from the origin A to the position B including the dressing cut δ. Thereafter, the grindstone 8 is pulled up to a position where it escapes upward by a grinding allowance obtained by adding the rough grinding allowance and the fine grinding allowance d of the medium grinding type C1 to the finished dimension a of the workpiece 13 mounted on the chuck 12. That is, the grindstone 8 starts grinding the workpiece 13 from the position B. During grinding of the workpiece 13 to the finishing dimension a, dressing is performed between the rough grinding allowance and the medium grinding type C, and between the medium grinding type C and the fine grinding allowance d. Dressing between this rough grinding allowance and medium grinding type C is performed by pulling up the grindstone 8 and dressing the dresser 1 after completing the rough grinding of the workpiece 13.
4 and lower it onto the dresser 14 for dressing. Dressing between the medium grinding type C and the fine grinding allowance d is performed in the same manner. When these dressings are performed, the surface of the grindstone 8 is reduced and the diameter of the grindstone 8 is reduced. The vertical position of the grindstone 8 is automatically corrected (dressing correction) by the amount reduced by this dressing to obtain the finished dimension a. In this way, even if it is a general-purpose grinding machine, by providing a mode switch for changing the input mode and using an inexpensive general-purpose personal computer as an input means, it is possible to perform fully automatic processing including dressing for repeated grinding. I can do it. On the other hand, when an operator works while monitoring the grinding conditions, such as when processing a single item, the mode can be switched to the general-purpose function of the general-purpose grinder, and conventional grinding can be facilitated. In this embodiment, although the explanation has been limited to surface grinding, the present invention can also be applied to cylindrical grinders, internal grinders, etc.

【Effect of the invention】

Since the present invention is configured as described above, it is possible to fully automate a general-purpose grinding machine at low cost without requiring work such as adding an operation panel to the general-purpose grinding machine or changing wiring. When a general-purpose function is required, such as machining, in which the operator monitors the grinding conditions and changes the conditions as the case may be, this can be easily done by switching modes.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of a general-purpose grinder capable of fully automatic grinding according to the present invention, and FIG. 2 is a diagram showing a fully automatic grinding cycle according to the embodiment shown in FIG. 1・・・・・・・・・・・・・・・・・・・・・・・・
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・・・・・・Bed 2・・・・・・・・・・・・・・・
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・・・・・・・・・Table 3・・・・・・・・・・・・
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・・・・・・・・・・・・・・・・・・Column 7...
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・・・・・・・・・・・・・・・・・・ Spindle 8・
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・・・・・・Whetstone 12・・・・・・・・・・・・・・・
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・・・Chuck 13・・・・・・・・・・・・・・・
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・・・・・・・・・Work 14・・・・・・・・・・
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・・・・・・Dresser control panel operation panel input device mode switch

Claims (1)

[Claims] (1) A workpiece placed on a table that slides in a predetermined direction and fixed by a chuck is ground to a predetermined size by rotating a grindstone that is rotatably attached to a spindle head that is attached to a column so that it can move up and down. a control panel that controls the grinding operation of the grinding device based on pre-stored grinding conditions such as finishing dimensions, depth of cut, longitudinal feed amount, etc., and an operation panel that inputs grinding conditions to the control panel. In this general-purpose grinding machine, the control panel is equipped with a mode switch for changing the input mode, and an input device for setting grinding conditions is externally connected, so that the mode switch can be used to switch between fully automatic function and general-purpose function. A general-purpose grinding machine that can perform fully automatic grinding.