KR20200090363A - A method for simple setting of the coordinates of CNC milling workpieces - Google Patents

Abstract

The present invention relates to a method for simple setting of a coordinate system of a CNC milling workpiece and, more specifically, to a method for simple setting of a coordinate system of a CNC milling workpiece wherein exact coordinates of a workpiece is automatically measured and provided to a CNC milling machine to be set without repetitive manual setting work consisting of position measurement, check, and position correction of a workpiece for exactly clamping a workpiece in a preset position when setting a workpiece to process a workpiece on a CNC milling machine for precision mold core manufacturing.

Description

{A method for simple setting of the coordinates of CNC milling workpieces}

The present invention is provided by automatically and conveniently setting the coordinates of the clamped workpiece to the CNC milling machine without manual repetitive positioning/checking/positioning of the workpiece to be processed before machining the workpiece through a CNC milling machine. It is related to a simple setting method of a coordinate system of a CNC milled workpiece that can be performed.

In order to process a workpiece on a CNC milling machine for the production of a precision mold core, a clamping setting operation that first fixed the workpiece to a horizontal or vertical position exactly according to a user-preset reference point had to be preceded. .

The existing setting method was a method of initial clamping a workpiece, and setting horizontally and vertically by clamping the workpiece through repeated measurement/confirmation by the operator.

In other words, after the initial clamping of the workpiece to the machining plate of the CNC machine, the operator uses the spindle, accu center, etc. to visually beat the horizontal and vertical setting surfaces with a hammer, and measures the coordinate system by repeating the zero point of the gauge. It was a method of manually entering and ending the setting with the final clamping.

If you explain this existing setting method in more detail,

1. Workpiece seating: Vise (separate jig required)

2. Horizontal measurement and hammer work: Measured using a horizontal gauge and work with a hammer, etc. to finely adjust the level (this is a defect that occurs depending on the skill level of the worker, and the worker has a dangerous problem with the face and upper body in the processing room) There was a problem that the setting measurement time takes about 15 minutes or more.)

3. Clamping: After hammering finely, even during clamping, the horizontal may be different depending on the clamping force of the worker, so that the work continues to be repeated until the coordinate system is set (defects occur depending on the skill of the worker, and danger is caused by proximity of the upper body in the worker's processing room) )

4. Multi-setting: The above steps 1, 2, and 3 were repeated, and the setting time increased according to the number of machining (decreasing factor of operation rate).

Therefore, before processing a workpiece on a CNC milling machine for producing such a precision mold core, a situation in which a coordinate system of the workpiece can be easily set and a method for shortening the setting measurement time has emerged.

Republic of Korea Patent Publication No. 2002-0023784 (released on March 29, 2002)

In the present invention, before machining a workpiece on a CNC milling machine for precision mold core production, previously, the position correction operation was repeatedly performed manually to accurately position the workpiece at a preset position, but in the present invention, the position of the workpiece It is possible to shorten the setting time by automating the setting of the coordinate system of the workpiece by measuring the clamping position automatically after one clamping without compensation, thereby improving productivity, ensuring machining quality, and eliminating industrial hazards. It is intended to provide a simple setting method for a coordinate system of a CNC milling workpiece.

Other objects and advantages of the present invention will be described below, and will be learned by embodiments of the present invention. In addition, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The present invention as a means for solving the above problems,

Step to be processed workpiece 50 is clamped by the magnetic force on the upper surface of the electromagnetic chuck 30 (S100); The dimensions (61) and prior information of the workpiece (50) are input to the simple setting program (60), and according to the input information, a work probe (Work-Probe) sensor (40) accurately measures the position of the workpiece (50) Step (S200) of automatically generating a movement path POST (B) of the work probe sensor 40, which informs the measurement path plan to be moved for the operation; The work probe sensor 40 is sequentially moved and contacted with a plurality of vertical surfaces of the workpiece 50 and the horizontal plane of the upper part and the workpiece 50, which are preset in the simple setting program 60, to accurately position the coordinates of the workpiece 50 Is automatically measured, the measured position coordinate is provided to the receiving unit in the CNC machining controller 20 of the CNC milling machine 10 for processing the workpiece 50 (S300); By being made, including

Before the work piece 50 is processed in the CNC milling machine 10, the work piece (without repeated manual setting operation consisting of position measurement/verification/positioning of the work piece 50) is accurately clamped to the work piece 50 at a predetermined position. 50) After the first clamping to step S100, through the automatic measurement of the position of steps S200 and S300, the precise position coordinates of the workpiece 50 for processing are provided to the CNC milling machine 10 and set. do.

As described above, the present invention has an effect capable of creating IT convergence technology through the implementation of an ultra-precision machining base (reducing machining errors due to workpiece coordinate system errors).

In addition, the present invention has an effect of improving the machining time (improving the equipment operation rate by 20%) by reducing the setting time of the manual workpiece coordinate system.

In addition, the present invention has an effect capable of preventing error (quality improvement) of the coordinate system setting due to the operator's visual setting.

In addition, the present invention has the effect that it is possible to reduce the process cost due to the increase in the minimum wage (reducing the process time).

In addition, the present invention has the effect of removing the risk factor of exposure to workers (such as prevention of industrial accidents) in spindles and cutting tools.

In addition, the present invention has an effect that does not cause the difference in quality according to the operator (skilled and unskilled quality is the same).

Figure 1 is a process flow diagram of one embodiment showing a conventional setting process for clamping a conventional CNC milling workpiece.
Figure 2 is a process flow chart comparing the setting process of the present invention with a conventional existing setting process.
Figure 3 is a conceptual diagram showing that the coordinate setting is possible regardless of the clamping direction of the workpiece in the present invention.
Figure 4 is a view of one embodiment showing the devices used in the CNC milling workpiece workpiece coordinate system simple setting method according to the present invention.
Figure 5 is a process flow chart of an embodiment showing a simple setting method of a coordinate system for CNC milling workpiece according to the present invention.
Figure 6 is a block diagram of an embodiment showing a simple setting program according to the present invention.
7 is a view of one embodiment showing the effect caused by the simple setting method of the CNC milling workpiece work coordinate system according to the present invention.

Before describing the various embodiments of the present invention in detail, it will be appreciated that its application is not limited to the details of the configurations and arrangements of components described in the following detailed description or illustrated in the drawings. The present invention can be implemented and implemented in other embodiments and can be performed in a variety of ways. In addition, the device or element orientation (eg "front", "back", "up", "down", "top", "bottom") The expressions and predicates used herein with respect to terms such as “, “left”, “right”, “lateral”, etc. are only used to simplify the description of the present invention, and related devices Or you will see that the element simply indicates or does not mean that it should have a specific direction. Further, terms such as “first” and “second” are used in the present application and the appended claims for explanation and are not intended to indicate or mean relative importance or purpose.

The present invention has the following features to achieve the above object.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or lexical meanings, and the inventor appropriately explains the concept of terms to explain his or her invention in the best way. Based on the principle that it can be defined, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Therefore, the embodiments shown in the embodiments and the drawings described in this specification are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, and thus can replace them at the time of application. It should be understood that there may be equivalents and variations.

Looking at one embodiment according to the present invention,

Step to be processed workpiece 50 is clamped by the magnetic force on the upper surface of the electromagnetic chuck 30 (S100); The dimensions (61) and prior information of the workpiece (50) are input to the simple setting program (60), and according to the input information, a work probe (Work-Probe) sensor (40) accurately measures the position of the workpiece (50) Step (S200) of automatically generating a movement path POST (B) of the work probe sensor 40, which informs the measurement path plan to be moved for the operation; The work probe sensor 40 is sequentially moved and contacted with a plurality of vertical surfaces of the workpiece 50 and the horizontal plane of the upper part and the workpiece 50, which are preset in the simple setting program 60, to accurately position the coordinates of the workpiece 50 Is automatically measured, the measured position coordinate is provided to the receiving unit in the CNC machining controller 20 of the CNC milling machine 10 for processing the workpiece 50 (S300); By being made, including

Before the work piece 50 is processed in the CNC milling machine 10, the work piece (without repeated manual setting operation consisting of position measurement/verification/positioning of the work piece 50) is accurately clamped to the work piece 50 at a predetermined position. 50) After the first clamping to step S100, through the automatic measurement of the position of steps S200 and S300, the precise position coordinates of the workpiece 50 for processing are provided to the CNC milling machine 10 and set. do.

In addition, in step S200, the dimension 61 of the workpiece 50 is input (S210); A step in which the position of the reference point 62 is input based on which point the workpiece 50 is clamped in a plurality of electronic poles 31 constituting the electronic magnetic chuck 30 (S220); A step S230 in which the work probe sensor 40 is moved and the setting type 63 consisting of the number of contact points C and the number of contact points C of the workpiece 50 to be contacted is input (S230); It consists of, characterized in that the temporary position coordinates of the workpiece 50 is determined, the POST (B) for the movement of the work probe sensor 40 is automatically generated as NC DATA (A).

In addition, the electronic magnetic chuck 30 is composed of a plurality of electron poles 31 that are continuously arranged in a lattice form in the transverse and longitudinal directions, and the mechanical coordinate values for the positions of the respective electron poles 31 are dictionary. It is characterized in that it is defined and stored and used in the simple setting program 60.

In addition, after the step S230, through the steps S210 and S220, the position of the work piece 50 placed on the upper surface of the electronic magnetic chuck 30 is shown as an image 64 in the simple setting program 60, and the work piece ( It is characterized in that it is possible to check the shape and clamping position of 50).

In addition, the movement path POST (B) of the work probe sensor 40 is characterized in that it is stored and used in a simple setting program 60 for processing history management according to the type of the workpiece 50.

In addition, the electronic magnetic chuck 30 is pre-stored in the information of a plurality of electronic magnetic chucks 30 having different specifications from each other in a simple setting program 60, and different electronic magnetic chucks according to the type of the workpiece 50 It is characterized in that the machine coordinate values for the positions of the plurality of electronic poles 31 constituting the 30 and the electronic magnetic chuck 30 can be changed and used.

In addition, in the step S100 in which the workpiece 50 is clamped, two or more workpieces 50 may be set in multiple, and unmanned night processing is possible.

Hereinafter, a simple setting method of a coordinate system for a CNC milling workpiece according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7.

As shown in the figure, a simple setting method for a coordinate system of a CNC (computer numerical control) milling workpiece according to the present invention, when setting the workpiece 50 previously, a coordinate system was set using a horizontal gauge and an accu center, but this was manually clamped. There was a problem of poor work efficiency and poor work efficiency due to repeated work with and hammers (hammers, etc.) (the error rate varies depending on the operator). Accordingly, the present invention relates to a method of improving the setting process of the workpiece 50 for such processing.

1. The workpiece 50 to be processed is clamped and fixed by magnetic force on the upper surface of the electromagnetic chuck 30 (S100): As a stage in which the workpiece is seated and initially clamped, the worktable 32 of the CNC milling machine 10 In this step, the workpiece 50 to be processed is clamped and fixed.

An electromagnetic magnetic chuck 30 is installed on the upper surface of the work table 32 of the CNC milling machine 10, and the upper and lower, front, rear, left, and right movements of the electronic magnetic chuck 30 can be freely moved. A work probe sensor 40, which is a possible contact sensor, is in contact with the horizontal and vertical surfaces of the workpiece 50 to measure coordinates and provides measurement information to a receiver connected to the CNC machining controller 20. .

In addition, the work probe sensor 40 is electrically receiving unit in the machining controller 20 of the CNC milling machine 10 (workpiece 50, a device for numerical input and control for machining of the CNC milling machine 10) and It is connected, and the receiver in the CNC machining controller 20 is also connected to a simple setting program 60 preset in a PC or the like.

An electronic magnetic chuck 30 is installed on the work table 32 that is clamped in this way, and the workpiece 50 is fixed to the magnetic surface of the electronic magnetic chuck 30 by electronic control.

For this purpose, the magnetic chuck 30 is composed of a plurality of electron poles 31 arranged in a continuous grid arrangement in the lateral and longitudinal directions, and the machine coordinate values for the positions of the respective electron poles 31 Is predefined and stored in the simple setting program 60 to be used, and unlike the conventional clamping and correcting of the position multiple times in order to accurately position the workpiece 50 at a preset position by the user, the present invention In the initial clamping only once, even if the position of the work piece 50 is not correct initially, no correction is necessary, and the work probe sensor 40 to be described later can grasp the correct position while contacting the work piece 50 .

In addition, the electronic magnetic chuck 30 is pre-stored in the information of a plurality of electronic magnetic chucks 30 having different specifications from each other in a simple setting program 60, and different electronic magnetic chucks according to the type of the workpiece 50 Machine coordinate values for the positions of the plurality of electronic poles 31 constituting the 30 and the electronic magnetic chuck 30 may be used by being changed.

In addition, in this step S100 in which the workpiece 50 is clamped, it is natural that two or more workpieces 50 can be set in multiples. When the workpiece 50 is clamped in a single or two or more workpieces 50, , POST(B) of the work piece 50 for each can be generated in the simple setting program 60.

2. Dimensions (61) and prior information, such as horizontal/vertical/height of the workpiece (50), are input to the simple setting program (60), and according to the inputted information, the work probe sensor (40) is the workpiece (50) Step (S200) of the movement path POST (B) of the work probe sensor 40, which informs the measurement path plan to be moved for accurate position measurement of the step (S200): When the workpiece 50 is clamped through the step S100 , A workpiece dimension 61 and a setting type are input on a simple setting program 60 pre-installed on a PC, etc., a reference point 62 on which the work piece 50 is mounted is determined, and a workprobe sensor 40 to be described later NC Data (Numerical Control, A) (Post, B) for the measurement path is automatically generated.

The simple setting program 60 is installed in the PC, and the work piece 50, the basic work piece 50 for preventing collision of the work probe sensor 40, the dimension 61 and other information are input to the route POST(B) It is a program that generates, and this information is transmitted to the CNC machining controller 20 to measure the horizontal and vertical coordinate systems.

In more detail, with the simple setting program 60, the machining information (dimension 61, reference point 62, setting type 63, and core type (image 64)) of the basic workpiece 50 is described. It is intended to be easily selected by the operator through the DB conversion image 64, the step of inputting the dimension 61 of the workpiece 50 (S210), a plurality of electronic poles constituting the electronic magnetic chuck 30 In step (31), the reference point (62) position of the reference point (62) where the workpiece (50) is clamped based on which point (S220) (based on which side edge of the edge of the electromagnetic chuck 30, the workpiece (50) Whether it is clamped or clamped on the upper part of the electromagnetic pole 31 of a plurality of electronic magnetic poles 31, etc.), the point of contact C of the workpiece 50 to which the work probe sensor 40 will be moved and contacted ) And the setting type 63 consisting of the number of contact points (C) is input (S230 ), and the temporary position coordinates of the workpiece 50 are determined, so that the POST for movement of the work probe sensor 40 is determined. (B) is automatically generated as NC DATA(A).

In addition, through the steps S210 and S220, the position of the work piece 50 placed on the upper surface of the electronic magnetic chuck 30 is shown as an image 64 in the simple setting program 60, the shape and clamping of the work piece 50 It is possible to check the location.

As a result, the manual setting operation for accurately fixing the work piece 50 to the preset position is omitted. As a result, the work piece 50 is clamped once and the position coordinate setting is measured through the work probe sensor 40 to be described later. The utilization rate is improving.

3. The work probe sensor 40 is sequentially moved and contacted with a plurality of vertical surfaces of the workpiece 50 and the horizontal plane above the workpiece 50, which is preset in the simple setting program 60, and the workpiece 50 is correct. The position coordinates are automatically measured, and the measured position coordinates are provided to a receiving unit in the CNC machining controller 20 of the CNC milling machine 10 for machining the work piece 50 (S300): Coordinate system measurement for cutting ( It is a step that becomes automatic once).

As in step S200, the moving position coordinates of the work probe sensor 40 that measure the position coordinates while being in contact with the work piece 50 are set, so that the work probe sensor 40 can perform such NC Data(A) (post(B )), the exact position coordinate of the work piece 50 is measured while it is in contact with the work piece 50 while moving in line with it.

That is, before the workpiece 50 is processed in the CNC milling machine 10, without repetitive manual setting operation consisting of positioning/confirmation/positioning of the workpiece 50, so that the workpiece 50 is accurately clamped at a preset position, After the workpiece 50 is first clamped to step S100, through the automatic measurement of the positions of steps S200 and S300, the exact position coordinates of the workpiece 50 for processing are provided and set in the CNC milling machine 10 . Thereby, night unmanned processing will also be possible.

Accordingly, it is possible to measure setting coordinates without looking at the existing straight seam (horizontal and vertical lines of the work piece 50).

Of course, the POST (B) that is automatically generated in step S200 is that the work probe sensor 40 generates a POST (B) in a collision-preventing form in the simple setting program 60 and is used to measure the setting. Of course, it is compatible with the CNC machining controller 20 to generate setting measurement data.

As described above, although the present invention has been described by a limited number of embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following will be described by those skilled in the art to which the present invention pertains. Of course, various modifications and changes are possible within the equal scope of the claims to be described.

10: CNC milling machine 20: CNC machining controller
30: electronic magnetic chuck 31: electronic pole
32: worktable 40: work probe sensor
50: Workpiece 60: Easy setting program
A: NC data
B: POST
C: Contact point

Claims (7)

Step to be processed workpiece 50 is clamped by the magnetic force on the upper surface of the electromagnetic chuck 30 (S100);
The dimensions (61) and prior information of the workpiece (50) are input to the simple setting program (60), and according to the input information, a work probe (Work-Probe) sensor (40) accurately measures the position of the workpiece (50) Step (S200) of automatically generating the movement path POST (B) of the work probe sensor 40, which informs the measurement path plan to be moved for the operation;
The work probe sensor 40 is sequentially moved and brought into contact with a plurality of vertical surfaces of the workpiece 50 and the horizontal plane above the workpiece 50 and the workpiece 50, which is preset in the simple setting program 60, so as to accurately position coordinates of the workpiece 50 Is automatically measured, the measured position coordinate is provided to the receiving unit in the CNC machining controller 20 of the CNC milling machine 10 for processing the workpiece 50 (S300);
By being made, including
Before the work piece 50 is processed in the CNC milling machine 10, the work piece (without repeated manual setting work consisting of position measurement/verification/positioning of the work piece 50) is accurately clamped to the work piece 50 at a predetermined position. 50) After the initial clamping to step S100, through the automatic measurement of the positions of steps S200 and S300, the precise position coordinates of the workpiece 50 for processing are provided and set in the CNC milling machine 10. How to easily set the coordinate system of the CNC milling workpiece.
According to claim 1,
In step S200,
Step (S210) of the dimension 61 of the workpiece 50 is input;
A step in which the position of the reference point 62 is input based on which point the workpiece 50 is clamped in a plurality of electronic poles 31 constituting the electronic magnetic chuck 30 (S220);
A step S230 in which the work probe sensor 40 is moved and the setting type 63 consisting of the number of contact points C and the number of contact points C of the workpiece 50 to be contacted is input (S230); Consists of,
A simple setting method of a coordinate system for a CNC milling machined workpiece, characterized in that a POST (B) for movement of the work probe sensor 40 is automatically generated as NC DATA (A) by determining the temporary position coordinate of the workpiece 50. .
The method according to claim 1 or 2,
The electromagnetic magnetic chuck 30 is
It consists of a number of electron poles 31 arranged in a lattice form in the transverse and longitudinal directions, and the machine coordinate values for the positions of the respective electron poles 31 are predefined and stored in the simple setting program 60 A simple setting method for a coordinate system of a CNC milled workpiece, which is used as a tool.
According to claim 2,
After the step S230,
Through the steps S210 and S220, the position of the work piece 50 placed on the upper surface of the electronic magnetic chuck 30 is shown as an image 64 in the simple setting program 60, so as to check the shape and clamping position of the work piece 50 A simple setting method of a coordinate system for a CNC milling workpiece, characterized in that this is possible.
The method according to claim 1 or 2,
The movement path POST (B) of the work probe sensor 40 is
A method for easily setting a coordinate system for a CNC milling machined workpiece, characterized in that it is stored and used in a simple setting program (60) for managing the machining history according to the type of the workpiece (50).
The method according to claim 1 or 2,
The electromagnetic magnetic chuck 30 is
The information of the plurality of electronic magnetic chucks 30 with different specifications is pre-stored in the simple setting program 60, so that the electronic magnetic chuck 30 and the electromagnetic chuck 30 are different according to the type of the workpiece 50. A simple setting method for a coordinate system of a CNC milling machined work piece, characterized in that a machine coordinate value for a plurality of positions of the electronic poles 31 is used.
The method according to claim 1 or 2,
In step S100 in which the workpiece 50 is clamped,
It is possible to set two or more workpieces 50 in multi,
Easy setting method of CNC milling machined workpiece coordinate system, which is possible to perform unmanned machining at night.

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