Roller numerical control lathe tool detection device and detection method thereof

Abstract

The application discloses a kind of roll numerical control lathe tool detection device and its detection method, belong to the field of roll manufacturing technology, including numerical control lathe, the roll to be processed, the tool rest that can be moved back and forth on tool rest guide rail, and the cutter installed on tool rest, any position is installed with automatic tool setting instrument in the bottom of lathe tailstock, and inserts automatic tool setting detection program in numerical control machining program;Operator after tool setting on the outer circle of roll, input measured value to automatic tool setting detection program, open tool rest to the front of automatic tool setting instrument, start automatic tool setting detection program, can complete measured value and standard value comparison, if measured value meets processing requirement, can be processed according to normal process, if it does not meet the requirement, numerical control lathe spindle locking cannot rotate, and it needs to be retooling.The application can effectively prevent the problem of outer circle size out-of-tolerance caused by manual tooling error.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of roll manufacturing, in particular to a roll numerical control lathe tool setting detection device and a detection method thereof. BACKGROUND

[0002] Before using the numerical control lathe to process the roll, the operator obtains the product outer circle diameter value by manually tool setting, inputs it and then starts the program to automatically process, and during the process, the outer circle size out-of-tolerance caused by tool setting value error occurs, which affects the product quality.

[0003] Therefore, it is necessary to develop a roll numerical control lathe tool setting detection device and a detection method thereof. SUMMARY

[0004] The present application needs to solve the technical problem of providing a roll numerical control lathe tool setting detection device and a detection method thereof, which can effectively prevent the roll outer circle size out-of-tolerance caused by manual tool setting error.

[0005] To solve the above technical problems, the technical solution adopted by the present application is:

[0006] A roll numerical control lathe tool setting detection device, comprising a numerical control lathe, a roll to be processed installed between the headstock of the numerical control lathe and the tailstock of the machine tool, a tool holder capable of moving back and forth on the tool holder guide rail, and a tool for processing the roll installed on the tool holder, an automatic tool setting instrument is installed at any position on the bottom of the tailstock of the machine tool, and an automatic tool setting detection program is embedded in the numerical control processing program.

[0007] The further improvement of the technical scheme of the present application is that a limit switch is arranged on the automatic tool setting instrument.

[0008] A roll numerical control lathe tool setting detection method, comprising the following steps:

[0009] S1, first, the operator uses the tool setting program to tool set more than 10 times continuously on the same machine under the guidance of the technical personnel, obtains the average value X0 of the X-axis coordinate value, and sets X0 as the standard value; before running the numerical control processing program, the operator manually tool sets on the roll outer circle measuring table according to the normal processing requirements, measures the X-axis coordinate value X1 of the tool at this time, sets X1 as the measurement value, and keeps the spindle rotating during the period;

[0010] S2, after manual tool setting, the tool holder is opened to the automatic tool setting instrument, when the tool tip of the tool is about 5mm away from the center of the limit switch on the automatic tool setting instrument in the X-axis direction, the automatic tool setting detection program is run;

[0011] S3, when the tool tip triggers the limit switch on the automatic tool setting instrument, the tool holder will automatically stop running, and the automatic tool setting detection program automatically judges the difference between the measurement value and the standard value, which is the tool setting error value.

[0012] S4, if the tool setting error value is greater than a specified value, the spindle stops rotating, and needs to be re-set according to the above steps, until the error requirement is met; when the tool setting error value is less than the specified value, the numerical control machining program can be normally run.

[0013] Further improvement of the technical scheme of the application is that the automatic tool setting detection program pseudo code is as follows:

[0014] When the tool setting signal is equal to 1, that is, the tool touches the automatic tool setting instrument, the tool holder stops moving;

[0015] Stop for 4 seconds;

[0016] The tool is retreated by 0.5 mm in the negative direction of the X axis;

[0017] The actual coordinate of the roll X axis is recorded to the R1 parameter;

[0018] The absolute value of the difference between the actual value and the standard value is recorded to the R3 parameter;

[0019] When R3 is less than 0.5 mm, R4 is equal to 1;

[0020] Otherwise, R4 is equal to 0;

[0021] If R4 is equal to 1, the tool setting is stopped, and the numerical control lathe is paused for 30 seconds for data collection;

[0022] If R4 is equal to 0, the spindle of the numerical control lathe stops rotating, and the tool is reset.

[0023] Further improvement of the technical scheme of the application is that the specified value is 0.5 mm.

[0024] Due to the adoption of the above technical scheme, the application has the following technical progress:

[0025] 1. The application can effectively prevent the product outer circle size from being out of tolerance due to manual tool setting errors, and avoid malignant quality accidents caused by coordinate value setting errors.

[0026] 2. The application has short tool setting time, simple operation, high implementation precision, and low installation cost.

[0027] 3. The application can effectively ensure the product size through field trial, and has good effect. BRIEF DESCRIPTION OF DRAWINGS

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the tool setting detection device for CNC lathes for rolling mills provided by the present invention;

[0030] The components include: 1. Tool post guide rail; 2. Tool post; 3. Automatic tool setter; 4. Machine tool tailstock; 5. Rolls; 6. Headstock. Detailed Implementation

[0031] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this invention are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0033] like Figure 1 As shown, a CNC lathe tool setting and detection device for a roll includes a CNC lathe, a roll 5 to be processed installed between the headstock 6 and the tailstock 4 of the CNC lathe, a tool post 2 that can move back and forth on the tool post guide rail 1, and a cutting tool for processing the roll 5 installed on the tool post 2. An automatic tool setter 3 is installed at any position on the bottom of the tailstock 4, and an automatic tool setting and detection program is embedded in the CNC machining program.

[0034] Furthermore, the automatic tool setter 3 is equipped with a limit switch.

[0035] A method for detecting tool setting on a CNC lathe for rolling mills includes the following steps:

[0036] S1. First, under the guidance of technicians, the operator uses the tool setting program to perform tool setting more than 10 times on the same machine tool to obtain the average X-axis coordinate value X0, and sets X0 as the standard value. Before running the CNC machining program, the operator performs manual tool setting on the measuring table of the outer diameter turning machine of roll 5 according to normal machining requirements, and measures the X-axis coordinate value X1 of the tool at this time, sets X1 as the measured value, and keeps the spindle rotating during the process.

[0037] Standard value, refers to find skilled master, in the same machine tool using tool setting program multiple tool setting summarized number, continuous tool setting 10 times or more, the average value, input to the machine tool, each machine tool standard value is different.

[0038] S2, manual tool setting after the tool rest 2 open to automatic tool setting instrument 3, when the tool tip X axis direction from the automatic tool setting instrument 3 on the limit switch center about 5 mm, run automatic tool setting detection program;

[0039] S3, when the tool tip trigger automatic tool setting instrument 3 on the limit switch, tool rest 2 will automatically stop running, while the automatic tool setting detection program automatically judge the difference between the measured value and the standard value, that is, the tool setting error value;

[0040] S4, if the tool setting error value is greater than the specified value, the spindle stops rotating, and needs to be retooling according to the above steps until the error requirement is met; when the tool setting error value is less than the specified value, the numerical control machining program can be run normally.

[0041] The specified value is the allowable tolerance value, and the specified value in the program is 0.5, that is, the difference between the actual value and the standard value cannot be greater than 0.5 mm, which is artificially set, mainly considering the existence of machine tool error, and considering comprehensively, 0.5 mm is set, which is also the rule of actual production operation. Because of various reasons, the operator cannot guarantee that the actual tool setting value is 100% accurate, and 0.5 mm is also the error range allowed in the finish machining process.

[0042] Further, the automatic tool setting detection program pseudo code is as follows:

[0043] When the tool setting signal is equal to 1, that is, the tool touches the automatic tool setting instrument, the tool rest stops moving;

[0044] Stop for 4 seconds;

[0045] The tool retreats 0.5 mm in the negative direction of X axis, that is, the opposite direction of the roller 5 (the direction away from the roller 5)

[0046] The actual coordinate of the roller X axis is recorded to R1 parameter; that is, the actual X value of the tool setting of the roller;

[0047] The absolute value of the difference between the actual value and the standard value is recorded to R3 parameter;

[0048] When R3 is less than 0.5 mm, R4 is equal to 1;

[0049] Otherwise, R4 is equal to 0;

[0050] If R4 is equal to 1, stop tool setting, pause for 30 seconds for data acquisition of numerical control lathe; use intelligent cloud science system to collect data, feed back the tool setting result to office software for monitoring the tool setting result of the operator;

[0051] If R4 is equal to 0, the main shaft of the numerical control lathe stops rotating, and the tool setting is reset.

[0052] The function of the automatic tool setting detection program is to prevent the operator from setting the tool incorrectly, and the operator cannot control the tool setting result. For example, the operator may make a mistake in the actual operation, such as misremembering the number or misreading the drawing, thereby causing the actual value input into the numerical control lathe to be incorrect. The automatic tool setting detection program can effectively verify whether the actual value input by the operator is correct. The application of the automatic tool setting detection program realizes a quality accident rate of 0 caused by incorrect tool setting.

[0053] In summary, the roll numerical control lathe tool setting detection device and the detection method provided by the application have obvious effects, can effectively avoid the problem of excessive error in the outer diameter size caused by manual tool setting errors, and can avoid manual tool setting errors before the operator starts the program by automatically setting the tool. The tool setting time is short, the tool setting process is automatic, the implementation precision is high, the demand for precision machining of numerical control rolls can be met, the application market is wide, and the effect is good.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A detection method for a tool setting detection device on a CNC lathe for rolling mills, characterized in that: The detection device includes a CNC lathe, a roll (5) to be processed installed between the headstock (6) and tailstock (4) of the CNC lathe, a tool post (2) that can move back and forth on the tool post guide (1), and a cutting tool for processing the roll (5) installed on the tool post (2). An automatic tool setter (3) is installed at any position on the bottom of the tailstock (4), and an automatic tool setting detection program is embedded in the CNC machining program. The automatic tool setter (3) is equipped with a limit switch. The detection method includes the following steps: S1, First, under the guidance of the technician, the operator uses the tool setting program to set the tool continuously more than 10 times on the same machine tool to obtain the average value X0 of the tool X-axis coordinate and set X0 as the standard value; Before running the CNC machining program, the operator performs manual tool setting on the measuring table of the outer circle turning of the roll (5) according to the normal machining requirements, and measures the X-axis coordinate value X1 of the tool at this time, sets X1 as the measured value, and keeps the spindle rotating during the process; S2, after manual tool setting, move the tool holder (2) to the automatic tool setter (3), when the tool tip X-axis Run the automatic tool setting detection program at a distance of about 5mm from the center of the limit switch on the automatic tool setter (3); S3, when the tip of the tool triggers the limit switch on the automatic tool setter (3), the tool holder (2) will automatically stop running. At the same time, the automatic tool setting detection program will automatically judge the difference between the measured value and the standard value, which is the tool setting error value. S4. If the tool setting error value is greater than the specified value, the spindle will stop rotating and the tool needs to be set again according to the above steps until the error requirement is met. When the tool setting error value is less than the specified value, the CNC machining program can be run normally.

2. The detection method according to claim 1, characterized in that: The pseudocode for the automatic tool setting detection program is as follows: When the tool setting signal is equal to 1, that is, when the tool touches the automatic tool setter, the tool holder stops moving; Pause for 4 seconds; The tool retracts 0.5mm in the negative X-axis direction; The actual X-axis coordinates of the roll are recorded to parameter R1. The absolute value of the difference between the actual value and the standard value is recorded in the R3 parameter; When R3 is less than 0.5 mm, record it to parameter R4, where R4 equals 1; Conversely, R4 equals 0; If R4 equals 1, then stop tool setting and pause for 30 seconds to collect data from the CNC lathe; If R4 equals 0, the CNC lathe spindle stops rotating and the tool is reset.

3. The detection method according to claim 1, characterized in that: In S4, the specified value is 0.5 mm.

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