KR102696720B1 - Operation control method to set the machining accuracy of the honing machine - Google Patents
Operation control method to set the machining accuracy of the honing machine Download PDFInfo
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- KR102696720B1 KR102696720B1 KR1020230140157A KR20230140157A KR102696720B1 KR 102696720 B1 KR102696720 B1 KR 102696720B1 KR 1020230140157 A KR1020230140157 A KR 1020230140157A KR 20230140157 A KR20230140157 A KR 20230140157A KR 102696720 B1 KR102696720 B1 KR 102696720B1
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- workpiece
- processing
- honing tool
- honing
- gauge
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000003754 machining Methods 0.000 title claims description 34
- 238000012545 processing Methods 0.000 claims abstract description 87
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000010730 cutting oil Substances 0.000 claims abstract description 8
- 239000004575 stone Substances 0.000 claims abstract description 6
- 238000013459 approach Methods 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
- B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/06—Honing machines or devices; Accessories therefor with controlling or gauging equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/08—Honing tools
- B24B33/087—Honing tools provided with measuring equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/10—Accessories
- B24B33/105—Honing spindles; Devices for expanding the honing elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
본 발명은 호닝머신의 가공정도를 설정하기 위한 운전 제어방법에 관한 것으로 엔진블록의 실린더 보어 내부 연마 시 호닝툴의 상하운전 중 내부로드에 압력을 가하여 호닝툴의 팽창을 유도압력에 따라 가공의 정도가 바뀌는 형태로 가공중 설치된 계측기의 피드백에 의한 치수의 정도를 확인하고 가공을 완료하도록 함으로써 가공정밀도를 향상시킴과 아울러 가공시간을 줄일 수 있도록 하여 전체 가공효율을 증대시키도록 하기 위해, 호닝머신 상에 장착된 센서를 통해 가공 준비된 피가공물의 정위치를 확인하는 단계(S1); 상기 호닝머신에 설치된 호닝툴을 X축(좌우)이동하여 준비된 피가공물 측으로 접근시킨 후, 호닝툴을 Z축(상하)이동하여 가공대기 위치로 이동시킨 다음, 호닝툴 및 피가공물 측으로 절삭유를 공급하면서 호닝툴을 Z축(상하)이동하여 피가공물의 내경 하단부까지 이동시키는 단계(S2); 상기 호닝툴의 외면에 방사상으로 장착된 호닝스톤을 확장 및 축소하면서 호닝툴에 의한 피가공물의 내경 가공을 진행하는 단계(S3); 상기 S3단계는 피가공물의 가공완료 시점을 상하운전의 횟수로 조절하여 가공하는 카운터 방식으로 황삭 또는 중삭가공하거나, 상기 피가공물의 가공완료 시점을 시간으로 설정하여 가공하는 시간설정 방식으로 황삭 또는 중삭가공하는 방식 중 적어도 어느 1가지 이상으로 가공토록 한 후, 상기 피가공물의 설정된 최종완료 치수를 게이지를 이용하여 확인하면서 가공하는 게이지 방식으로 황삭, 중삭 또는 정삭가공하는 방식으로 가공토록 하고, 상기 카운터 방식, 시간설정 방식 및 게이지 방식은 피가공물의 내경을 실시간 측정하는 에어게이지에 연결되며 피가공물의 재질 및 두께에 따른 가공량이 미리 설정된 컨트롤러를 통해 제어토록 하며, 상기 절삭유의 공급을 중지시키면서, 호닝툴을 X축(좌우) 및 Z축(상하)이동하여 호닝툴의 대기위치로 이동시킨 다음, 로봇 및 컨베이어를 통해 피가공물을 배출시키는 단계(S4);를 포함하여 이루어짐을 특징으로 한다.The present invention relates to an operation control method for setting the processing degree of a honing machine, wherein, during the up-and-down operation of a honing tool, pressure is applied to an internal rod to induce expansion of the honing tool when grinding the inside of a cylinder bore of an engine block, and the processing degree changes according to the pressure. The dimensional degree is confirmed by feedback from an installed measuring device during processing, and processing is completed, thereby improving processing precision and reducing processing time, thereby increasing overall processing efficiency. The method comprises the steps of: (S1) confirming the correct position of a workpiece prepared for processing through a sensor mounted on a honing machine; (S2) moving the honing tool installed on the honing machine along the X-axis (left-right) to approach the prepared workpiece, then moving the honing tool along the Z-axis (up-and-down) to a processing standby position, and then supplying cutting oil to the honing tool and the workpiece while moving the honing tool along the Z-axis (up-and-down) to move to the lower end of the inner diameter of the workpiece; Step (S3) of processing the inner diameter of a workpiece by a honing tool while expanding and contracting a honing stone radially mounted on the outer surface of the honing tool; The above S3 step is characterized by including at least one of the following methods: roughing or semi-finishing by controlling the processing completion time of the workpiece by the number of up and down operations, processing by a counter method, in which the processing completion time of the workpiece is adjusted by the number of up and down operations; roughing or semi-finishing by using a time setting method, in which the processing completion time of the workpiece is set by time, and processing by a gauge method in which the processing is performed while checking the set final completion dimension of the workpiece using a gauge; and the counter method, the time setting method, and the gauge method are connected to an air gauge that measures the inner diameter of the workpiece in real time and controls the processing amount according to the material and thickness of the workpiece through a preset controller, and the step (S4) of stopping the supply of the cutting oil and moving the honing tool along the X-axis (left and right) and the Z-axis (up and down) to the standby position of the honing tool and then discharging the workpiece through a robot and a conveyor.
Description
본 발명은 호닝머신의 가공정도를 설정하기 위한 운전 제어방법에 관한 것으로서, 보다 상세하게는 엔진블록의 실린더 보어 내부 연마 시 호닝툴의 상하운전 중 내부로드에 압력을 가하여 호닝툴의 팽창을 유도압력에 따라 가공의 정도가 바뀌는 형태로 가공중 설치된 계측기의 피드백에 의한 치수의 정도를 확인하고 가공을 완료하도록 함으로써 가공정밀도를 향상시킴과 아울러 가공시간을 줄일 수 있도록 하여 전체 가공효율을 증대시키도록 하는 호닝머신의 가공정도를 설정하기 위한 운전 제어방법에 관한 것이다.The present invention relates to an operation control method for setting the processing accuracy of a honing machine, and more specifically, to an operation control method for setting the processing accuracy of a honing machine, which applies pressure to an internal rod during the up-and-down operation of a honing tool when polishing the inside of a cylinder bore of an engine block, induces expansion of the honing tool, and changes the processing accuracy according to the pressure, thereby checking the dimensional accuracy through feedback from a measuring device installed during processing and completing processing, thereby improving processing accuracy and reducing processing time, thereby increasing overall processing efficiency.
일반적으로 호닝(honing)머신은 연마입자를 결합하여 만든 호닝스톤을 이용하여 저속으로 피가공물의 내경(내면)을 가공하는 장치를 말하며, 원주 상에 하나 또는 여러개의 막대형 호닝스톤을 고정하여 툴공구로 사용한다.In general, a honing machine is a device that processes the inner diameter (inner surface) of a workpiece at a low speed using a honing stone made by combining abrasive particles, and uses one or more bar-shaped honing stones fixed on a circumference as a tool.
호닝머신을 이용한 가공의 목적은 큰 재료제거율로 재료를 제거하는 목적으로 사용되는 경우도 있지만, 일반적으로는 매우 작은 재료제거율로 가공하면서 치수의 정밀화 및 우수한 품질의 표면을 얻도록 하기 위함이다.The purpose of machining using a honing machine is to remove material at a high material removal rate, but generally, it is to obtain dimensional precision and a high-quality surface while machining at a very low material removal rate.
종래기술에 의한 호닝머신의 가공은 피가공물의 내경 가공정도를 맞추기 위해 카운터 방식 또는 게이지 방식 등을 이용하여 가공작업을 진행하고 있으며, 이는 대부분 현장 작업자에 의한 경험치로 진행되고 있어 설계상 정확한 치수의 내경치수 및 조도를 확보하기 위해 작업시간이 오래 걸리게 되는 문제점이 있었다.In the conventional honing machine processing, the processing work is carried out using a counter method or a gauge method to match the inner diameter processing accuracy of the workpiece. Most of this is carried out based on the experience of field workers, so there was a problem that the work time was long in order to secure the inner diameter dimension and roughness of the exact design dimensions.
이에 본 발명은 상기한 문제점을 일소하기 위해 창안한 것으로서, 엔진블록의 실린더 보어 내부 연마 시 호닝툴의 상하운전 중 내부로드에 압력을 가하여 호닝툴의 팽창을 유도압력에 따라 가공의 정도가 바뀌는 형태로 가공중 설치된 계측기의 피드백에 의한 치수의 정도를 확인하고 가공을 완료하도록 함으로써 가공정밀도를 향상시킴과 아울러 가공시간을 줄일 수 있도록 하여 전체 가공효율을 증대시키도록 하는 호닝머신의 가공정도를 설정하기 위한 운전 제어방법에 주안점을 두고 그 기술적 과제로서 완성한 것이다.Accordingly, the present invention has been created to eliminate the above-mentioned problems, and focuses on an operation control method for setting the processing degree of a honing machine so that the expansion of the honing tool is induced by applying pressure to the internal rod during the up-and-down movement of the honing tool when polishing the inside of the cylinder bore of an engine block, and the processing degree changes according to the pressure, thereby improving the processing precision and reducing the processing time by checking the dimensional accuracy through feedback from an installed measuring device during processing and completing the processing, thereby increasing the overall processing efficiency.
위 기술적 과제를 달성하기 위한 본 발명은, 호닝머신 상에 장착된 센서를 통해 가공 준비된 피가공물의 정위치를 확인하는 단계(S1); 상기 호닝머신에 설치된 호닝툴을 X축(좌우)이동하여 준비된 피가공물 측으로 접근시킨 후, 호닝툴을 Z축(상하)이동하여 가공대기 위치로 이동시킨 다음, 호닝툴 및 피가공물 측으로 절삭유를 공급하면서 호닝툴을 Z축(상하)이동하여 피가공물의 내경 하단부까지 이동시키는 단계(S2); 상기 호닝툴의 외면에 방사상으로 장착된 호닝스톤을 확장 및 축소하면서 호닝툴에 의한 피가공물의 내경 가공을 진행하는 단계(S3); 상기 S3단계는 피가공물의 가공완료 시점을 상하운전의 횟수로 조절하여 가공하는 카운터 방식으로 황삭 또는 중삭가공하거나, 상기 피가공물의 가공완료 시점을 시간으로 설정하여 가공하는 시간설정 방식으로 황삭 또는 중삭가공하는 방식 중 적어도 어느 1가지 이상으로 가공토록 한 후, 상기 피가공물의 설정된 최종완료 치수를 게이지를 이용하여 확인하면서 가공하는 게이지 방식으로 황삭, 중삭 또는 정삭가공하는 방식으로 가공토록 하고, 상기 카운터 방식, 시간설정 방식 및 게이지 방식은 피가공물의 내경을 실시간 측정하는 에어게이지에 연결되며 피가공물의 재질 및 두께에 따른 가공량이 미리 설정된 컨트롤러를 통해 제어토록 하며, 상기 절삭유의 공급을 중지시키면서, 호닝툴을 X축(좌우) 및 Z축(상하)이동하여 호닝툴의 대기위치로 이동시킨 다음, 로봇 및 컨베이어를 통해 피가공물을 배출시키는 단계(S4);를 포함하여 이루어지며, 상기 S3단계에서, 상기 피가공물의 가공완료 시점을 상하운전의 횟수로 조절하여 가공하는 카운터 방식으로 2∼10회 황삭가공한 후, 상기 피가공물의 가공완료시점을 5∼20분으로 설정하여 가공하는 시간설정 방식으로 중삭가공한 다음, 상기 피가공물의 설정된 최종완료 치수를 게이지를 이용하여 측정하는 게이지 방식으로 정삭가공하도록 구성하고, 상기 게이지 방식은 황삭가공 호닝툴 압력최대치에 해당하는 1단신호를 확인한 후, 중삭가공 호닝툴 압력중간치에 해당하는 2단신호를 확인한 다음, 정삭가공 호닝툴 압력최하치에 해당하는 3단신호를 확인하면서 가공을 진행토록 하여, 상기 1∼3단신호를 통해 호닝툴의 확장압력, 가공속도 및 각도를 변경 가능토록 구성하며, 상기 1∼3단신호를 통한 피가공물의 가공 후, 스파크 아웃 호닝툴 압력최하치에 해당하는 4단신호를 확인하면서 가공토록 진행하되, 상기 4단신호는 호닝툴의 상하위치에 따라 신호를 확인하여 피가공물의 내경 직진도를 판별하고 쇼트운전을 결정토록 구성하는 것을 특징으로 하는 호닝머신의 가공정도를 설정하기 위한 운전 제어방법을 제공한다.In order to achieve the above technical task, the present invention comprises: a step (S1) of confirming the exact position of a workpiece prepared for processing through a sensor mounted on a honing machine; a step (S2) of moving a honing tool mounted on the honing machine along the X-axis (left and right) to approach the prepared workpiece, moving the honing tool along the Z-axis (up and down) to a position ready for processing, and then moving the honing tool along the Z-axis (up and down) to move to a lower end of the inner diameter of the workpiece while supplying cutting oil to the honing tool and the workpiece; a step (S3) of performing inner diameter processing of the workpiece by the honing tool while expanding and contracting a honing stone radially mounted on an outer surface of the honing tool; The above step S3 comprises at least one of the following: roughing or semi-finishing in a counter method that adjusts the processing completion time of the workpiece by the number of up-and-down operations, or roughing or semi-finishing in a time setting method that sets the processing completion time of the workpiece by time, and then roughing, semi-finishing, or finishing in a gauge method that checks the set final completion dimension of the workpiece using a gauge, and the above step S3 comprises the step (S4) of: connecting the counter method, the time setting method, and the gauge method to an air gauge that measures the inner diameter of the workpiece in real time, and controlling the processing amount according to the material and thickness of the workpiece by a preset controller, and stopping the supply of the cutting oil, moving the honing tool along the X-axis (left and right) and the Z-axis (up and down) to the standby position of the honing tool, and then discharging the workpiece through a robot and a conveyor; and in the step S3, processing is performed in a counter method that adjusts the processing completion time of the workpiece by the number of up-and-down operations. After rough machining 2 to 10 times, the intermediate machining is performed in a time setting manner in which the machining completion time of the workpiece is set to 5 to 20 minutes, and then the final machining is performed in a gauge manner in which the set final completion dimension of the workpiece is measured using a gauge, and the gauge manner is configured to perform finishing machining by checking the first stage signal corresponding to the maximum pressure of the honing tool for rough machining, then checking the second stage signal corresponding to the middle pressure of the honing tool for intermediate machining, and then checking the third stage signal corresponding to the minimum pressure of the honing tool for finishing machining, so that the expansion pressure, machining speed, and angle of the honing tool can be changed through the first to third stages, and after machining the workpiece through the first to third stages, the machining is performed while checking the fourth stage signal corresponding to the minimum pressure of the spark out honing tool, and the fourth stage signal is characterized in that it is configured to check the signal according to the upper and lower positions of the honing tool to determine the straightness of the inner diameter of the workpiece and determine short operation. Provided is an operation control method for setting the processing accuracy of a honing machine.
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상기한 본 발명에 의하면 엔진블록의 실린더 보어 내부 연마 시 호닝툴의 상하운전 중 내부로드에 압력을 가하여 호닝툴의 팽창을 유도압력에 따라 가공의 정도가 바뀌는 형태로 가공중 설치된 계측기의 피드백에 의한 치수의 정도를 확인하고 가공을 완료하도록 함으로써 가공정밀도를 향상시킴과 아울러 가공시간을 줄일 수 있도록 하여 전체 가공효율을 증대시킬 수 있는 등의 효과가 있다.According to the present invention described above, when grinding the inside of a cylinder bore of an engine block, the honing tool is moved up and down to apply pressure to the internal rod, thereby inducing expansion of the honing tool, and the degree of processing is changed according to the pressure. Accordingly, the degree of dimension is confirmed by feedback from a measuring device installed during processing, and processing is completed, thereby improving processing precision and reducing processing time, thereby increasing overall processing efficiency.
도 1은 본 발명에 의한 호닝머신의 가공정도를 설정하기 위한 운전 제어방법의 공정순서 실시 예시도
도 2는 본 발명에 의한 호닝머신의 가공정도를 설정하기 위한 운전 제어방법의 제어프로그램 실시 예시도Figure 1 is an example of the process sequence of the operation control method for setting the processing accuracy of the honing machine according to the present invention.
Figure 2 is an example of a control program implementation of an operation control method for setting the processing accuracy of a honing machine according to the present invention.
이하 본 발명의 실시를 위한 구체적인 내용을 첨부한 도면을 참조하여 더욱 상세하게 설명한다.Hereinafter, specific details for implementing the present invention will be described in more detail with reference to the attached drawings.
본 발명은 엔진블록의 실린더 보어 내부 연마 시 호닝툴의 상하운전 중 내부로드에 압력을 가하여 호닝툴의 팽창을 유도압력에 따라 가공의 정도가 바뀌는 형태로 가공중 설치된 계측기의 피드백에 의한 치수의 정도를 확인하고 가공을 완료하도록 함으로써 가공정밀도를 향상시킴과 아울러 가공시간을 줄일 수 있도록 하여 전체 가공효율을 증대시키도록 하는 호닝머신의 가공정도를 설정하기 위한 운전 제어방법에 관한 것으로서 도 1 및 도 2를 참고하여 보면 아래 후술되는 S1∼S4단계를 포함하여 이루어진다.The present invention relates to an operation control method for setting the processing degree of a honing machine, which improves processing precision and reduces processing time by inducing expansion of the honing tool by applying pressure to an internal rod during the up-and-down operation of the honing tool during internal polishing of a cylinder bore of an engine block, thereby changing the processing degree according to the pressure, thereby checking the dimensional degree by feedback from an installed measuring device during processing, and thereby completing processing, thereby increasing the overall processing efficiency. Referring to FIGS. 1 and 2, the method comprises steps S1 to S4 described below.
본 발명의 구현을 위해 먼저 호닝머신 상에 장착된 센서를 통해 가공 준비된 피가공물의 정위치를 확인한다.(S1단계)To implement the present invention, first, the exact position of the workpiece prepared for processing is confirmed through a sensor mounted on the honing machine (step S1).
상기 피가공물은 주로 엔진블록의 실린더 보어이며, 상기 엔진블록의 실린더 보어의 내경을 연마하기 위해 본 발명의 호닝머신을 통해 호닝가공을 진행토록 한다.The above workpiece is mainly a cylinder bore of an engine block, and honing is performed using a honing machine of the present invention to polish the inner diameter of the cylinder bore of the engine block.
상기 S1단계가 완료되면, 상기 호닝머신에 설치된 호닝툴을 X축(좌우)이동하여 준비된 피가공물 측으로 접근시킨 후, 호닝툴을 Z축(상하)이동하여 가공대기 위치로 이동시킨다. 그런 다음, 상기 호닝툴 및 피가공물 측으로 절삭유를 공급하면서 호닝툴을 Z축(상하)이동하여 피가공물의 내경 하단부까지 이동시킨다.(S2단계)When the above S1 step is completed, the honing tool installed on the honing machine is moved along the X-axis (left and right) to approach the prepared workpiece, and then the honing tool is moved along the Z-axis (up and down) to a machining standby position. Then, while supplying cutting oil to the honing tool and the workpiece, the honing tool is moved along the Z-axis (up and down) to the lower part of the inner diameter of the workpiece. (S2 step)
상기 S2단계를 통해 호닝툴이 피가공물의 내경가공을 위해 진입된 상태로 가공 준비된다.Through the above S2 step, the honing tool is prepared for machining by entering the workpiece for inner diameter machining.
그런 후, 상기 호닝툴의 외면에 방사상으로 장착된 호닝스톤을 확장 및 축소하면서 호닝툴에 의한 피가공물의 내경 가공을 진행토록 한다.(S3단계)After that, the inner diameter of the workpiece is processed by the honing tool while expanding and contracting the honing stone radially mounted on the outer surface of the honing tool (step S3).
상기 호닝툴에 의한 피가공물의 내경 가공방식은 피가공물의 재질, 작업조건 등에 따라 선택적으로 달라지게 되는데, 본 발명에서는 먼저 1차적으로 피가공물의 가공완료 시점을 상하운전의 횟수로 조절하여 가공하는 카운터 방식으로 황삭 또는 중삭가공하거나, 상기 피가공물의 가공완료 시점을 시간으로 설정하여 가공하는 시간설정 방식으로 황삭 또는 중삭가공하는 방식 중 적어도 어느 1가지 이상으로 가공토록 한 후, 2차적으로 상기 피가공물의 설정된 최종완료 치수를 게이지를 이용하여 확인하면서 가공하는 게이지 방식으로 황삭, 중삭 또는 정삭가공하는 방식으로 가공토록 하였다.The inner diameter processing method of the workpiece by the above honing tool selectively varies depending on the material of the workpiece, working conditions, etc., but in the present invention, first, the workpiece is processed by at least one of the following methods: a counter method in which the processing completion time of the workpiece is adjusted by the number of up and down operations to perform rough or semi-finishing processing, or a time setting method in which the processing completion time of the workpiece is set by time to perform rough or semi-finishing processing, and second, a gauge method in which the workpiece is processed while checking the set final completion dimension using a gauge to perform rough, semi-finishing or finishing processing.
이때, 상기 카운터 방식, 시간설정 방식 및 게이지 방식은 피가공물의 내경을 실시간 측정하는 에어게이지에 연결되어 실시간 측정되는 피가공물의 내경에 따라 3가지 방식 중 1가지가 선택적으로 변경 작동되게 하고, 또한 상기 피가공물의 재질 및 두께에 따른 가공량이 미리 설정된 컨트롤러를 통해 제어토록 한다.At this time, the counter method, time setting method, and gauge method are connected to an air gauge that measures the inner diameter of the workpiece in real time, and one of the three methods is selectively changed and operated according to the inner diameter of the workpiece measured in real time, and also the processing amount according to the material and thickness of the workpiece is controlled through a controller that is set in advance.
상세하게는 먼저 상기 S1단계에서 피가공물의 정위치 확인 시 센서 또는 작업자에 의해 피가공물의 재질 및 두께가 컨트롤러에 입력되게 하여, 상기 피가공물의 재질 및 두께에 따라 미리 설정된 가공방식으로 상기 카운터 방식, 시간설정 방식 및 게이지 방식을 혼용하여 작업토록 하며, 상기 혼용 작업과정에서 에어게이지를 통해 실시간으로 피가공물의 내경을 측정하면서 변수 발생 시 그에 적절한 가공방식을 선택하여 가공되게 구성한다.Specifically, first, in the step S1 above, when the exact position of the workpiece is confirmed, the material and thickness of the workpiece are input into the controller by a sensor or a worker, and according to the material and thickness of the workpiece, the counter method, the time setting method, and the gauge method are mixed and used in a preset processing method to perform the operation, and during the mixed processing process, the inner diameter of the workpiece is measured in real time using an air gauge, and when a variable occurs, an appropriate processing method is selected and processed.
상기 S3단계의 보다 상세한 실시예로서, 먼저 1공정으로 상기 피가공물의 가공완료 시점을 상하운전의 횟수로 조절하여 가공하는 카운터 방식으로 2∼10회 황삭가공한 후, 2공정으로서 상기 피가공물의 가공완료시점을 5∼20분으로 설정하여 가공하는 시간설정 방식으로 중삭가공한 다음, 마지막 3공정으로서 상기 피가공물의 설정된 최종완료 치수를 게이지를 이용하여 측정하는 게이지 방식으로 정삭가공하도록 구성할 수 있다.As a more detailed example of the above S3 step, first, in the first process, rough machining is performed 2 to 10 times in a counter manner by controlling the time of completion of machining of the workpiece by the number of up and down operations, then in the second process, semi-finishing is performed in a time setting manner by setting the time of completion of machining of the workpiece to 5 to 20 minutes, and then in the last third process, finishing machining is performed in a gauge manner by measuring the set final completion dimension of the workpiece using a gauge.
그 중에서 특히 상기 게이지 방식에 의한 더 구체적인 실시예로서 황삭가공 호닝툴 압력최대치에 해당하는 1단신호를 확인한 후, 중삭가공 호닝툴 압력중간치에 해당하는 2단신호를 확인한 다음, 정삭가공 호닝툴 압력최하치에 해당하는 3단신호를 확인하면서 가공을 진행토록 하여, 상기 1∼3단신호를 통해 호닝툴의 확장압력, 가공속도 및 각도를 변경 가능토록 구성할 수 있다.Among these, as a more specific example using the gauge method, the first stage signal corresponding to the maximum pressure of the honing tool for rough machining is confirmed, the second stage signal corresponding to the middle pressure of the honing tool for intermediate machining is confirmed, and then the third stage signal corresponding to the minimum pressure of the honing tool for finishing machining is confirmed while machining is performed, so that the expansion pressure, machining speed, and angle of the honing tool can be changed through the first to third stage signals.
이에 더하여, 상기 1∼3단신호를 통한 피가공물의 가공 후, 스파크 아웃 호닝툴 압력최하치에 해당하는 4단신호를 확인하면서 가공토록 진행하되, 상기 4단신호는 호닝툴의 상하위치에 따라 신호를 확인하여 피가공물의 내경 직진도를 판별하고 쇼트운전을 결정토록 구성할 수 있다.In addition, after processing of the workpiece through the 1st to 3rd stage signals, processing is performed while checking the 4th stage signal corresponding to the lowest pressure of the spark out honing tool. The 4th stage signal can be configured to check the signal according to the upper and lower positions of the honing tool to determine the straightness of the inner diameter of the workpiece and determine short operation.
한편, 상기 S3단계가 완료되면 상기 절삭유의 공급을 중지시키면서, 호닝툴을 X축(좌우) 및 Z축(상하)이동하여 호닝툴의 대기위치로 이동시킨 다음, 로봇 및 컨베이어를 통해 피가공물을 배출시키도록 한다.(S4단계)Meanwhile, when the above S3 step is completed, the supply of the cutting oil is stopped, the honing tool is moved along the X-axis (left and right) and Z-axis (up and down) to the standby position of the honing tool, and then the workpiece is discharged through the robot and conveyor (S4 step).
본 발명은 상술된 S1∼S4단계를 통해 이루어지며, 상술된 바와 같은 본 발명의 호닝머신의 가공정도를 설정하기 위한 운전 제어방법에 의하면, 엔진블록의 실린더 보어 내부 연마 시 호닝툴의 상하운전 중 내부로드에 압력을 가하여 호닝툴의 팽창을 유도압력에 따라 가공의 정도가 바뀌는 형태로 가공중 설치된 계측기의 피드백에 의한 치수의 정도를 확인하고 가공을 완료하도록 함으로써 가공정밀도를 향상시킴과 아울러 가공시간을 줄일 수 있도록 하여 전체 가공효율을 증대시킬 수 있게 된다.The present invention is achieved through the steps S1 to S4 described above, and according to the operation control method for setting the processing degree of the honing machine of the present invention as described above, when grinding the inside of the cylinder bore of an engine block, the honing tool is moved up and down to apply pressure to the internal rod to induce expansion of the honing tool, and the processing degree changes according to the pressure. By checking the dimensional degree through feedback from a measuring device installed during processing and completing the processing, the processing precision is improved and the processing time is reduced, thereby increasing the overall processing efficiency.
이상에서 설명한 본 발명은, 도면에 도시된 일실시 예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시 예가 가능하다는 점을 명확히 하여야 할 것이다. 따라서, 본 발명의 진정한 기술적 보호 범위는 첨부된 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술적 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The present invention described above has been described with reference to an embodiment shown in the drawings, but this is merely exemplary, and it should be made clear that various modifications and equivalent other embodiments are possible from this by those skilled in the art. Accordingly, the true technical protection scope of the present invention should be interpreted by the appended claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.
Claims (4)
상기 호닝머신에 설치된 호닝툴을 X축(좌우)이동하여 준비된 피가공물 측으로 접근시킨 후, 호닝툴을 Z축(상하)이동하여 가공대기 위치로 이동시킨 다음, 호닝툴 및 피가공물 측으로 절삭유를 공급하면서 호닝툴을 Z축(상하)이동하여 피가공물의 내경 하단부까지 이동시키는 단계(S2);
상기 호닝툴의 외면에 방사상으로 장착된 호닝스톤을 확장 및 축소하면서 호닝툴에 의한 피가공물의 내경 가공을 진행하는 단계(S3); 상기 S3단계는 피가공물의 가공완료 시점을 상하운전의 횟수로 조절하여 가공하는 카운터 방식으로 황삭 또는 중삭가공하거나, 상기 피가공물의 가공완료 시점을 시간으로 설정하여 가공하는 시간설정 방식으로 황삭 또는 중삭가공하는 방식 중 적어도 어느 1가지 이상으로 가공토록 한 후, 상기 피가공물의 설정된 최종완료 치수를 게이지를 이용하여 확인하면서 가공하는 게이지 방식으로 황삭, 중삭 또는 정삭가공하는 방식으로 가공토록 하고, 상기 카운터 방식, 시간설정 방식 및 게이지 방식은 피가공물의 내경을 실시간 측정하는 에어게이지에 연결되며 피가공물의 재질 및 두께에 따른 가공량이 미리 설정된 컨트롤러를 통해 제어토록 하며,
상기 절삭유의 공급을 중지시키면서, 호닝툴을 X축(좌우) 및 Z축(상하)이동하여 호닝툴의 대기위치로 이동시킨 다음, 로봇 및 컨베이어를 통해 피가공물을 배출시키는 단계(S4);를 포함하여 이루어지며,
상기 S3단계에서, 상기 피가공물의 가공완료 시점을 상하운전의 횟수로 조절하여 가공하는 카운터 방식으로 2∼10회 황삭가공한 후, 상기 피가공물의 가공완료시점을 5∼20분으로 설정하여 가공하는 시간설정 방식으로 중삭가공한 다음, 상기 피가공물의 설정된 최종완료 치수를 게이지를 이용하여 측정하는 게이지 방식으로 정삭가공하도록 구성하고,
상기 게이지 방식은 황삭가공 호닝툴 압력최대치에 해당하는 1단신호를 확인한 후, 중삭가공 호닝툴 압력중간치에 해당하는 2단신호를 확인한 다음, 정삭가공 호닝툴 압력최하치에 해당하는 3단신호를 확인하면서 가공을 진행토록 하여, 상기 1∼3단신호를 통해 호닝툴의 확장압력, 가공속도 및 각도를 변경 가능토록 구성하며,
상기 1∼3단신호를 통한 피가공물의 가공 후, 스파크 아웃 호닝툴 압력최하치에 해당하는 4단신호를 확인하면서 가공토록 진행하되, 상기 4단신호는 호닝툴의 상하위치에 따라 신호를 확인하여 피가공물의 내경 직진도를 판별하고 쇼트운전을 결정토록 구성하는 것을 특징으로 하는 호닝머신의 가공정도를 설정하기 위한 운전 제어방법.Step (S1) of confirming the correct position of a workpiece prepared for processing through a sensor mounted on a honing machine;
Step (S2) of moving the honing tool installed in the above honing machine along the X-axis (left and right) to approach the prepared workpiece, moving the honing tool along the Z-axis (up and down) to a position ready for machining, and then supplying cutting oil to the honing tool and the workpiece while moving the honing tool along the Z-axis (up and down) to the lower end of the inner diameter of the workpiece;
Step (S3) of processing the inner diameter of a workpiece by a honing tool while expanding and contracting a honing stone radially mounted on the outer surface of the honing tool; The S3 step is performed by performing at least one of the following methods: roughing or semi-finishing in a counter method in which the processing completion time of the workpiece is adjusted by the number of up and down operations, or roughing or semi-finishing in a time setting method in which the processing completion time of the workpiece is set by time, and then performing roughing, semi-finishing or finishing in a gauge method in which the processing is performed while checking the set final completion dimension of the workpiece using a gauge. The counter method, the time setting method and the gauge method are connected to an air gauge that measures the inner diameter of the workpiece in real time and control the processing amount according to the material and thickness of the workpiece through a controller that is set in advance.
It is performed by including a step (S4) of stopping the supply of the cutting oil, moving the honing tool along the X-axis (left and right) and the Z-axis (up and down) to the standby position of the honing tool, and then discharging the workpiece through the robot and conveyor.
In the above S3 step, the rough machining is performed 2 to 10 times in a counter method by adjusting the processing completion time of the workpiece by the number of up and down operations, and then the semi-finishing is performed in a time setting method by setting the processing completion time of the workpiece to 5 to 20 minutes, and then the final machining is performed in a gauge method by measuring the set final completion dimension of the workpiece using a gauge.
The above gauge method checks the first stage signal corresponding to the maximum pressure of the honing tool for rough machining, then checks the second stage signal corresponding to the middle pressure of the honing tool for medium machining, and then checks the third stage signal corresponding to the minimum pressure of the honing tool for finishing machining, thereby proceeding with machining, so that the expansion pressure, machining speed, and angle of the honing tool can be changed through the first to third stage signals.
An operation control method for setting the processing level of a honing machine, characterized in that after processing a workpiece through the above-mentioned 1-3 stage signals, processing is performed while checking the 4th stage signal corresponding to the lowest pressure of a spark out honing tool, and the 4th stage signal is configured to check the signal according to the upper and lower positions of the honing tool to determine the straightness of the inner diameter of the workpiece and determine short operation.
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