Measurement control device for precision grinding of workpiece and control method therefor

Abstract

The present invention relates to a measurement control device for precise grinding of a workpiece, the device comprising: a head unit; a measurement device installed vertically downward through the center of an upper grinding wheel to measure grinding dimensions; and a measurement stage installed vertically upward through the center of a table and a lower grinding wheel and corresponding to the measurement device. In addition, the present invention includes a grinding timing setting process in which the measuring device comes into contact with the measurement stage to set a grinding timing; and a grinding control process for controlling precise grinding of the upper and lower surfaces of a workpiece. Therefore, the present invention provides a measurement control device for precision grinding of a workpiece and a control method therefor, wherein grinding precision and workpiece productivity can be improved by precisely controlling the processing dimensions of a double-sided grinding device for precision grinding of the workpiece.

Description

Measurement and control device for precision grinding of a grinding body and control method thereof

[0001] The present invention relates to a measurement control device and a control method for precision grinding of a grinding body, and more specifically, to a measurement control device and a control method for precision grinding of a grinding body that can improve grinding precision and grinding productivity by precisely controlling the processing dimensions of a double-sided grinding device for precision grinding of a grinding body.

[0002] Generally, a cutting tool is a tool primarily used for cutting ferrous, non-ferrous, and non-metallic materials, typically mounted on a machine tool to perform cutting in order to shape a workpiece into a desired form.

[0003] Carbide inserts used in cutting tools are sintered alloys formed by mixing diamond powder or cemented carbide powder with metal powders such as iron (Fe), tungsten (W), cobalt (Co), copper (Cu), nickel (Ni), tin (Sn), copper-tin (Cu-Sn), zinc (Zn), copper-zinc (Cu-Zn), and silver (Ag), and then firing them.

[0004] In the molding step prior to sintering, the mixed powder is placed into a rectangular cavity and subjected to primary pressure molding. The mixture subjected to primary pressure molding is then placed into the cavity of a carbon mold, and a cutting tip with a shape corresponding to the shape of the puncher is formed by applying high pressure. The insert tip formed into a specific shape is sintered in a sintering furnace to complete the insert tip (carbide insert).

[0005] The sintered carbide insert must undergo a grinding step to grind the upper and lower surfaces for PVD (Physical Vapor Deposition) or CVD (Chemical Vapor Deposition) coating, and the grinding step is a process of simultaneously grinding the upper and lower surfaces of the carbide insert using specialized grinding equipment.

[0006] Conventional grinding equipment used to perform such grinding processes cannot measure the dimensions of the carbide insert (grinding body) during the grinding process, and since the 'electronic scale' for measuring the amount of grinding is located on the head of the grinding equipment, there is a problem that the measurement deviation is significant depending on the amount of play of the grinding equipment itself, and especially during continuous processing, the dimensions of the same grinding body cannot be controlled.

[0007] In order to improve the aforementioned problems, the applicant has developed a measurement and control device for precision grinding of a grinding body and a control method thereof, which can improve grinding precision and grinding productivity by precisely controlling the processing dimensions of a double-sided grinding device for precision grinding of a grinding body.

[0008] The objective of the present invention, which is to solve the aforementioned problem, is to provide a measurement control device for precision grinding of a grinding body, which is configured by being coupled to a precision grinding system comprising an upper grinding wheel and a lower grinding wheel for processing the upper and lower surfaces of the grinding body (1), a head part that moves vertically up and down to which the upper grinding wheel is coupled, a table to which the lower grinding wheel is coupled, a base part, and a main shaft part.

[0009] Another objective of the present invention is to provide a measurement control device for precision grinding of a grinding body, comprising a measuring instrument and a measuring stage.

[0010] Another objective of the present invention is to provide a measurement control device for precision grinding of a grinding body, wherein the measuring device comprises a 'probe measuring device' including a body and a needle to measure the dimensions of the grinding body.

[0011] Another objective of the present invention is to provide a measurement control device for precision grinding of a grinding body, wherein the measurement stage comprises a plate that contacts the needle of the measuring instrument to obtain a measurement value of the grinding body, a plate guide that connects and fixes the plate and a shaft below, and a shaft.

[0012] The objective of the present invention, which is to solve the aforementioned problems, is to provide a measurement control method for precision grinding of a grinding body comprising a grinding time setting process and a grinding control process.

[0013] Another objective of the present invention is to provide a measurement control method for precision grinding of a grinding body, wherein the grinding time setting process is configured such that a plurality of grinding bodies are loaded onto a carrier located on a lower grinding wheel, and when an upper grinding wheel coupled to the head part descends and contacts the grinding bodies, a measuring device descending together with the upper grinding wheel contacts the measuring stage to set the time.

[0014] Another objective of the present invention is to provide a measurement control method for precision grinding of a grinding body, wherein the grinding process control process is configured to load a plurality of grinding bodies onto a carrier located on a lower grinding wheel, and to control precision grinding of the upper and lower surfaces of the grinding body in a grinding process timing setting process in which an upper grinding wheel coupled to the head part descends and contacts the grinding body.

[0015] The measurement control device for precision grinding of a grinding body according to the present invention for achieving the above purpose is configured by being combined with a precision grinding system comprising an upper grinding wheel and a lower grinding wheel for processing the upper and lower surfaces of a grinding body (1), a head part to which the upper grinding wheel is coupled and moves vertically up and down, a table to which the lower grinding wheel is coupled, a base part, and a main shaft part.

[0016] Another feature of the present invention is configured to include a measuring instrument and a measuring stage.

[0017] Another feature of the present invention is that the measuring device comprises a 'probe measuring device' including a body and a needle to measure the dimensions of the grinding body.

[0018] Another feature of the present invention is that the measuring stage comprises a plate that contacts the needle of the measuring instrument to obtain a measurement value of the grinding body, a plate guide that connects and fixes the plate and the lower shaft, and a shaft.

[0019] The measurement control method for precision grinding of a grinding body according to the present invention for achieving the above objective is characterized by comprising a grinding time setting process and a grinding control process.

[0020] Another feature of the present invention is that the grinding process setting process is configured such that a plurality of grinding bodies are loaded onto a carrier located on a lower grinding wheel, and when an upper grinding wheel coupled to the head part descends and contacts the grinding bodies, the measuring device descending together with the upper grinding wheel contacts the measuring stage to set the time.

[0021] Another feature of the present invention is that the grinding process control process is configured to load a plurality of grinding bodies onto a carrier located on a lower grinding wheel, and to control the precision grinding of the upper and lower surfaces of the grinding bodies in the grinding process timing setting process in which an upper grinding wheel coupled to the head part descends and contacts the grinding bodies.

[0022] As described above, the present invention first configures a probe precision grinding measurement control device at the exact center closest to the grinding body. Therefore, deviations caused by the amount of play in the equipment itself, which occurs when installed in the head part as in conventional equipment, can be reduced.

[0023] In addition, the present invention is configured to set the grinding time and control the grinding amount through contact between a measuring instrument and a measuring space. Accordingly, grinding is performed in the range of 4.860±2㎛ by controlling in increments of 0.001mm up to a specified grinding dimension of 4.860mm.

[0024] In addition, the present invention applies a WTA grinding program to control grinding in units of 0.001 mm within a range of 4.860 ± 2 μm. Therefore, there is an advantage in that high-quality products can be produced by standardizing and configuring the grinding amount and grinding conditions of the workpiece.

[0025] FIG. 1 is a schematic cross-sectional view of a precision grinding system applied to the prior art and the present invention.

[0026] FIG. 2 is a cross-sectional view showing a precision grinding measuring device coupled to the precision grinding system.

[0027] FIG. 3 is a diagram schematically showing the detailed configuration of a precision grinding measuring device according to the present invention.

[0028] FIG. 4 is a figure showing the process of a precision grinding measuring device according to the present invention, where (a) shows lowering and contact for measurement, (b) shows the point of grinding process, (c) shows the step of measuring the amount of grinding, and (d) shows separation and raising.

[0029] The present invention is capable of various modifications and may have various embodiments, and specific examples are illustrated in the drawings and described in detail in the description of the invention.

[0030] However, this is not intended to limit the invention to specific embodiments, and it is understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0031] The terms and words used in this invention are used merely to describe specific embodiments and are not intended to limit the invention. Based on the principle that the concepts of the terms can be appropriately defined to best describe one's invention, they should be interpreted in a meaning and concept consistent with the technical spirit of this invention.

[0032] The grinding body, which is the subject of the present invention, must undergo a grinding process to grind the upper and lower surfaces. However, conventional grinding equipment cannot measure dimensions during the grinding process, and the 'electronic scale' for measuring the amount of grinding is located on the head of the grinding equipment, so there is a problem that the measurement deviation is severe depending on the amount of play of the grinding equipment itself, and especially during continuous processing, the dimensions of the same grinding body cannot be controlled.

[0033] In order to improve the aforementioned problems, the applicant has developed a measurement and control device for precision grinding of a grinding body and a control method thereof, which can improve grinding precision and grinding productivity by precisely controlling the processing dimensions of a double-sided grinding device for precision grinding of a grinding body.

[0034] The specific features and advantages of the present invention will become more clear from the following description with reference to the attached drawings.

[0035] FIG. 1 is a schematic cross-sectional view of a precision grinding system applied to the prior art and the present invention, FIG. 2 is a cross-sectional view showing a precision grinding measuring device coupled to the precision grinding system, FIG. 3 is a schematic diagram showing the detailed configuration of a precision grinding measuring device according to the present invention, FIG. 4 is a diagram showing the process of a precision grinding measuring device according to the present invention, where (a) shows lowering and contact for measurement, (b) shows the point of grinding process, (c) shows the step of measuring the amount of grinding, and (d) shows separation and raising.

[0036] [Example 1] Measurement and control device for precision grinding of a grinding body according to the present invention

[0037] Referring to FIGS. 1 to 3, the measurement control device (10) for precision grinding of a grinding body according to the present invention is configured to be coupled to a precision grinding system (9) comprising an upper grinding wheel (9.11) and a lower grinding wheel (9.21) for processing the upper and lower surfaces of a grinding body (1), a head part (9.1) to which the upper grinding wheel (9.11) is coupled and moves vertically up and down, a table (9.2) to which the lower grinding wheel (9.21) is coupled, a base part (9.3), and a main shaft part (9.4).

[0038] A measurement control device (10) for precision grinding of a grinding body according to the present invention comprises a measuring instrument (11) and a measurement stage (12).

[0039] The measuring device (11) of the measuring control device (10) for precision grinding of a grinding body according to the present invention is composed of a 'probe measuring device' including a body (111) and a needle (112) to measure the dimensions of the grinding body (1).

[0040] The measurement stage (12) of the measurement control device (10) for precision grinding of a grinding body according to the present invention comprises a plate (121) that contacts the needle (112) of the measuring instrument to obtain a measurement value of the grinding body, a plate guide (122) that connects and fixes the plate (121) and the lower shaft (123), and a shaft (123).

[0041] Referring to FIG. 3, the measurement control device (10) for precision grinding of the grinding body of the present invention is described in detail. When the upper grinding wheel (9.11) that processes the upper and lower surfaces of the grinding body (1) descends and comes into contact with the grinding body (1) on the lower grinding wheel (9.21), the needle (112) of the measuring device (11) comes into contact with the measurement stage (12) and is configured to set the 'grinding processing time'.

[0042] In addition, the measurement control device (10) for precision grinding of the grinding body of the present invention is configured to grind in the range of 4.860±2㎛ by controlling in 0.001mm increments from the 'grinding processing time' to a specified dimension of 4.860mm.

[0043] [Example 2] Measurement control method for precision grinding of a grinding body according to the present invention

[0044] Referring to FIG. 4, the measurement control method for precision grinding of a grinding body according to the present invention comprises a grinding time setting process and a grinding control process.

[0045] The grinding time setting process of the measurement control method for precision grinding of a grinding body according to the present invention is configured such that a plurality of grinding bodies (1) are loaded onto a carrier (1.1) located on a lower grinding wheel (9.21), and when an upper grinding wheel (9.11) coupled to the head part (9.1) descends and contacts the grinding body (1), the measuring device (11) descending together with the upper grinding wheel (9.11) contacts the measurement stage (12) to set the time.

[0046] The grinding process control process of the measurement control method for precision grinding of a grinding body according to the present invention is configured to control precision grinding of the upper and lower surfaces of the grinding body (1) in the grinding process setting process, wherein a plurality of grinding bodies (1) are loaded onto a carrier (1.1) located on a lower grinding wheel (9.21), and an upper grinding wheel (9.11) coupled to the head part (9.1) descends to contact the grinding body (1).

[0047] In addition, the grinding process control process according to the present invention is configured to be ground in the range of 4.860±2㎛ by controlling in increments of 0.001mm up to a specified grinding dimension of 4.860mm from the 'grinding process start time'.

[0048] The measurement control device and control method for precision grinding of a grinding body according to the present invention have the following features.

[0049] First, a probe precision grinding measurement control device was configured at the exact center closest to the grinding body.

[0050] Therefore, the deviation caused by the amount of play in the equipment itself, which occurs by installing it in the head part as in conventional equipment, can be reduced.

[0051] In addition, the present invention is configured to set the grinding time and control the grinding amount through contact between a measuring instrument and a measuring space.

[0052] Therefore, grinding is performed in the range of 4.860±2㎛ by controlling in increments of 0.001mm up to the specified grinding dimension of 4.860mm.

[0053] In addition, the present invention applies a WTA grinding program to control the grinding in units of 0.001 mm and grinds within the range of 4.860 ± 2 μm.

[0054] Therefore, there is an advantage in being able to produce high-quality products by standardizing and configuring the grinding amount and grinding conditions of the grinding body.

Claims

1. A measurement control device for precision grinding of a grinding body coupled to a precision grinding system (9) comprising an upper grinding wheel (9.11) and a lower grinding wheel (9.21) for processing the upper and lower surfaces of a grinding body (1), a head part (9.1) to which the upper grinding wheel (9.11) is coupled and moves vertically up and down, a table (9.2) to which the lower grinding wheel (9.21) is coupled, a base part (9.3), and a main shaft part (9.4). The measurement control device (10) for precision grinding of the above grinding body comprises: a measuring instrument (11) that measures the grinding dimension by being installed vertically downward through the center of the head part (9.1) and the upper grinding wheel (9.11); and A measurement control device for precision grinding of a grinding body, characterized by comprising: a measurement stage (12) that is vertically installed upward through the center of the table (9.2) and the lower grinding wheel (9.21) in opposition to the above measuring device (110).

2. In Claim 1, A measurement control device for precision grinding of a grinding body, characterized in that the measuring instrument (11) is a 'probe measuring instrument' composed of a body (111) and a needle (112) to measure the dimensions of the grinding body (1).

3. In Claim 2, A measurement control device for precision grinding of a grinding body, characterized in that the measurement stage (12) comprises a plate (121) that contacts the needle (112) of the measuring instrument to obtain a measurement value of the grinding body, a plate guide (122) that connects and fixes the plate (121) and the lower shaft (123), and a shaft (123).

4. A measurement control method for precision grinding of a grinding body using a measurement control device according to any one of claims 1 to 3, wherein The above measurement control method is a measurement control method for precision grinding of a grinding body, characterized by including a process for setting a grinding processing time, wherein a plurality of grinding bodies (1) are loaded onto a carrier (1.1) located on a lower grinding wheel (9.21), and when an upper grinding wheel (9.11) coupled to the head part (9.1) descends and contacts the grinding body (1), a measuring device (11) descending together with the upper grinding wheel (9.11) contacts the measurement stage (12) to set a 'grinding processing time', and a grinding processing control process for controlling precision grinding of the upper and lower surfaces of the grinding body (1).

5. In Claim 4, A measurement control method for precision grinding of a grinding body, characterized in that the above grinding process control process is controlled in units of 0.001 mm from the above 'grinding time point' to a specified grinding dimension of 4.860 mm.

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