Method for determining the main plane of the spindle axis of a lathe by using a taper split of a turned part

Abstract

The application discloses a method for determining the main plane of the spindle axis of a lathe by using a turning piece to divide the taper, and particularly relates to the technical field of lathes, and comprises the following steps: step 1, collecting the taper division information of the turning piece, and setting an installation plane by analyzing the taper division information of the turning piece; step 2, turning an assembly groove, and turning the assembly groove on the set installation plane; step 3, assembling a pressure sensor, and assembling the pressure sensor in the assembly groove; and step 4, determining the main plane of the spindle axis of the lathe, assembling the turning piece with the spindle axis of the lathe, checking the stress condition of the pressure sensor, and determining the main plane of the spindle axis of the lathe. According to the feedback condition of the pressure sensor, the main plane of the spindle axis of the lathe can be quickly determined, and the abnormal position of the main plane of the spindle axis of the lathe can be quickly fed back, so that the abnormal position of the main plane of the spindle axis of the lathe can be clearly determined by the staff.

Description

Technical Field

[0001] This invention relates to the field of lathe technology, and more specifically, to a method for determining the principal plane of the lathe spindle axis by bisecting the taper of the turned workpiece. Background Technology

[0002] In the installation of a lathe spindle, the spindle must have a high degree of parallelism with the Z-axis (which moves parallel to the axis) and a high degree of perpendicularity with the X-axis (which moves perpendicular to the axis). Only after ensuring these two spatial accuracies can the spindle head be positioned, the locking screws tightened, and even locating pins installed. Accuracy is often checked by inserting a gauge into a highly precise tapered hole machined at the front end of the spindle. A dial indicator is used, and the spindle is rotated to measure spindle runout. The secondary plane (the plane perpendicular to the tool movement) is determined by moving the Z and X axes. The secondary plane is mainly ensured by scraping the contact surface between the spindle head and the bed. Measurements are taken at the near and far ends of the gauge. The primary plane (the tool movement surface) is determined by moving the Z-axis and adjusting its position. The primary plane is fixed by oscillating the spindle head until the reading is minimized. This is the conventional method for determining the spindle position during lathe installation. The advantage of this method is that it is simple and feasible. As long as the spindle taper hole is machined to a high enough precision and the fixture is of high enough precision, the spatial position of the spindle can be determined by inserting the fixture and using the above method.

[0003] Another existing method uses the machined part as a gauge. Before determining the principal plane of the spindle axis, the machined part is treated as a theoretical cone. The lathe tool travels along the generatrix of the cone, and the size of the taper is determined by measuring the data change on the opposite side of the tool using a dial indicator. Then, the lathe spindle is oscillated, and the runout of the dial indicator is measured to bifurcate the original taper. The final position is the position of the spindle axis on the principal plane. However, this method is time-consuming and labor-intensive, and cannot quickly determine the position of the lathe spindle axis on the principal plane, thus having certain limitations.

[0004] To address the aforementioned problems, a technical solution is provided. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a method for determining the main plane of the lathe spindle axis by bisecting the taper of the turned part to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A method for determining the principal plane of a lathe spindle axis by bisecting the taper of a turned workpiece includes the following steps: Step 1: Collect the taper bisector information of the machined part, and set the mounting plane by analyzing the taper bisector information of the machined part; Step 2: Turn the assembly groove on the set mounting plane; Step 3: Assemble the pressure sensor. Assemble the pressure sensor in the machining assembly slot. Step 4: Determine the main plane of the lathe spindle axis, assemble the workpiece with the lathe spindle axis, check the force on the pressure sensor, and determine the main plane of the lathe spindle axis.

[0007] In a preferred embodiment, in step 1, the taper bisector information of the machined part is obtained to obtain the taper bisector interval of the machined part, and the mounting plane is set according to the obtained taper bisector interval of the machined part.

[0008] In a preferred embodiment, in step 2, the thickness of the machining assembly groove is 1-4 mm, the number of machining assembly grooves is 30-38, and the shape of the machining assembly groove is circular.

[0009] In a preferred embodiment, in step 3, the assembled pressure sensor fits precisely into the machined mounting slot.

[0010] In a preferred embodiment, in step 4, during the assembly process of the turned part with the lathe spindle, the pressure sensor at each position can provide feedback on the force, and the force range is determined based on the feedback on the force. The machined part is divided into four stress zones, which are labeled as the first stress zone S1, the second stress zone S2, the third stress zone S3, and the fourth stress zone S4.

[0011] In a preferred embodiment, the number of pressure sensors distributed in the first force-bearing interval S1, the second force-bearing interval S2, the third force-bearing interval S3, and the fourth force-bearing interval S4 is the same, and the distribution state of the pressure sensors in each force-bearing interval is also the same. The first force-bearing interval S1 and the third force-bearing interval S3 are symmetrically arranged, and the second force-bearing interval S2 and the fourth force-bearing interval S4 are symmetrically arranged.

[0012] In a preferred embodiment, threshold values ​​for the force-bearing intervals are set and labeled as Supper and Slower, respectively. If S_upper ≤ first force interval S1 ≤ S_lower, output a normal signal; if the first force interval S1 < S_upper or the first force interval S1 > S_lower, issue an early warning for the first force interval S1. If S_upper ≤ S_second force interval S2 ≤ S_lower, output a normal signal; if S_second force interval S2 < S_upper or S_second force interval S2 > S_lower, issue an early warning for the second force interval S2. If S_upper ≤ S_3 ≤ S_lower, output a normal signal; if S_3 < S_upper or S_3 > S_lower, issue a warning for the third force interval S_3. If S_upper ≤ S_4 ≤ S_lower, output a normal signal; if S_4 < S_upper or S_4 > S_lower, issue a warning for the fourth force interval S_4.

[0013] It should be noted that this allows the main plane of the lathe spindle axis to be determined.

[0014] In a preferred embodiment, when a normal signal is output, it indicates that the position of the force-bearing zone corresponding to the main plane of the lathe spindle axis is normal; When a warning is issued in the first stress zone S1, it indicates that there is an anomaly at the position of the first stress zone S1 corresponding to the main plane of the lathe spindle axis; When a warning is issued in the second stress zone S2, it indicates that there is an anomaly at the position of the second stress zone S2 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the third stress zone S3, it indicates that there is an anomaly at the position of the third stress zone S3 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the fourth stress zone S4, it indicates that there is an anomaly in the position of the fourth stress zone S4 corresponding to the main plane of the lathe spindle axis.

[0015] It should be noted that this allows for automatic monitoring and handling of abnormal positions of the main plane of the lathe spindle axis.

[0016] The technical effects and advantages of the method for determining the principal plane of a lathe spindle axis by bisecting the taper of a machined part according to the present invention are as follows: 1. The mounting plane is set by analyzing the taper bisecting information of the machined part. Then, an assembly groove is machined on the set mounting plane. A pressure sensor is installed in the machined assembly groove. The machined part is then assembled with the lathe spindle axis. The force on the pressure sensor is checked to determine the main plane of the lathe spindle axis. Based on the feedback from the pressure sensor, the main plane of the lathe spindle axis can be quickly determined, which is convenient to use.

[0017] 2. By setting multiple force ranges and threshold values ​​for each force range, and then comparing the signals monitored by the pressure sensor with the threshold values ​​of the force ranges, the system can quickly provide feedback on abnormal positions of the main plane of the lathe spindle, making it convenient for operators to identify abnormal positions of the main plane of the lathe spindle. It is easy to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a method for determining the main plane of a lathe spindle axis by bisecting the taper of a machined part according to the present invention. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0020] Figure 1 This invention provides a method for determining the principal plane of a lathe spindle axis using a tapered bisecting workpiece, comprising the following steps: Step 1: Collect the taper bisector information of the machined part, and set the mounting plane by analyzing the taper bisector information of the machined part; Step 2: Turn the assembly groove on the set mounting plane; Step 3: Assemble the pressure sensor. Assemble the pressure sensor in the machining assembly slot. Step 4: Determine the main plane of the lathe spindle axis, assemble the workpiece with the lathe spindle axis, check the force on the pressure sensor, and determine the main plane of the lathe spindle axis.

[0021] In step 1, the taper bisector information of the machined part is obtained to obtain the taper bisector interval of the machined part, and the mounting plane is set according to the obtained taper bisector interval of the machined part.

[0022] In step 2, the thickness of the machining assembly groove is 1 mm, the number of machining assembly grooves is 30, and the shape of the machining assembly grooves is circular.

[0023] In step 3, the assembled pressure sensor fits perfectly into the machined mounting slot.

[0024] In step 4, during the assembly of the machined part with the lathe spindle, the pressure sensor at each position can provide feedback on the force, and the force range is determined based on the feedback. The machined part is divided into four stress zones, which are labeled as the first stress zone S1, the second stress zone S2, the third stress zone S3, and the fourth stress zone S4.

[0025] The number of pressure sensors distributed in the first force zone S1, the second force zone S2, the third force zone S3, and the fourth force zone S4 is the same, and the distribution of pressure sensors in each force zone is also the same. The first force zone S1 and the third force zone S3 are symmetrically arranged, and the second force zone S2 and the fourth force zone S4 are symmetrically arranged.

[0026] Set the threshold values ​​for the force-bearing intervals, and label them as Supper and Slower respectively; If S_upper ≤ first force interval S1 ≤ S_lower, output a normal signal; if the first force interval S1 < S_upper or the first force interval S1 > S_lower, issue an early warning for the first force interval S1. If S_upper ≤ S_second force interval S2 ≤ S_lower, output a normal signal; if S_second force interval S2 < S_upper or S_second force interval S2 > S_lower, issue an early warning for the second force interval S2. If S_upper ≤ S_3 ≤ S_lower, output a normal signal; if S_3 < S_upper or S_3 > S_lower, issue a warning for the third force interval S_3. If S_upper ≤ S_4 ≤ S_lower, output a normal signal; if S_4 < S_upper or S_4 > S_lower, issue a warning for the fourth force interval S_4.

[0027] When a normal signal is output, it indicates that the position of the force-bearing zone corresponding to the main plane of the lathe spindle center is normal; When a warning is issued in the first stress zone S1, it indicates that there is an anomaly at the position of the first stress zone S1 corresponding to the main plane of the lathe spindle axis; When a warning is issued in the second stress zone S2, it indicates that there is an anomaly at the position of the second stress zone S2 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the third stress zone S3, it indicates that there is an anomaly at the position of the third stress zone S3 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the fourth stress zone S4, it indicates that there is an anomaly in the position of the fourth stress zone S4 corresponding to the main plane of the lathe spindle axis. Example

[0028] Figure 1 This invention provides a method for determining the principal plane of a lathe spindle axis using a tapered bisecting workpiece, comprising the following steps: Step 1: Collect the taper bisector information of the machined part, and set the mounting plane by analyzing the taper bisector information of the machined part; Step 2: Turn the assembly groove on the set mounting plane; Step 3: Assemble the pressure sensor. Assemble the pressure sensor in the machining assembly slot. Step 4: Determine the main plane of the lathe spindle axis, assemble the workpiece with the lathe spindle axis, check the force on the pressure sensor, and determine the main plane of the lathe spindle axis.

[0029] In step 1, the taper bisector information of the machined part is obtained to obtain the taper bisector interval of the machined part, and the mounting plane is set according to the obtained taper bisector interval of the machined part.

[0030] In step 2, the thickness of the machining assembly groove is 2mm, the number of machining assembly grooves is 34, and the shape of the machining assembly grooves is circular.

[0031] In step 3, the assembled pressure sensor fits perfectly into the machined mounting slot.

[0032] In step 4, during the assembly of the machined part with the lathe spindle, the pressure sensor at each position can provide feedback on the force, and the force range is determined based on the feedback. The machined part is divided into four stress zones, which are labeled as the first stress zone S1, the second stress zone S2, the third stress zone S3, and the fourth stress zone S4.

[0033] The number of pressure sensors distributed in the first force zone S1, the second force zone S2, the third force zone S3, and the fourth force zone S4 is the same, and the distribution of pressure sensors in each force zone is also the same. The first force zone S1 and the third force zone S3 are symmetrically arranged, and the second force zone S2 and the fourth force zone S4 are symmetrically arranged.

[0034] Set the threshold values ​​for the force-bearing intervals, and label them as Supper and Slower respectively; If S_upper ≤ first force interval S1 ≤ S_lower, output a normal signal; if the first force interval S1 < S_upper or the first force interval S1 > S_lower, issue an early warning for the first force interval S1. If S_upper ≤ S_second force interval S2 ≤ S_lower, output a normal signal; if S_second force interval S2 < S_upper or S_second force interval S2 > S_lower, issue an early warning for the second force interval S2. If S_upper ≤ S_3 ≤ S_lower, output a normal signal; if S_3 < S_upper or S_3 > S_lower, issue a warning for the third force interval S_3. If S_upper ≤ S_4 ≤ S_lower, output a normal signal; if S_4 < S_upper or S_4 > S_lower, issue a warning for the fourth force interval S_4.

[0035] When a normal signal is output, it indicates that the position of the force-bearing zone corresponding to the main plane of the lathe spindle center is normal; When a warning is issued in the first stress zone S1, it indicates that there is an anomaly at the position of the first stress zone S1 corresponding to the main plane of the lathe spindle axis; When a warning is issued in the second stress zone S2, it indicates that there is an anomaly at the position of the second stress zone S2 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the third stress zone S3, it indicates that there is an anomaly at the position of the third stress zone S3 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the fourth stress zone S4, it indicates that there is an anomaly in the position of the fourth stress zone S4 corresponding to the main plane of the lathe spindle axis. Example

[0036] Figure 1 This invention provides a method for determining the principal plane of a lathe spindle axis using a tapered bisecting workpiece, comprising the following steps: Step 1: Collect the taper bisector information of the machined part, and set the mounting plane by analyzing the taper bisector information of the machined part; Step 2: Turn the assembly groove on the set mounting plane; Step 3: Assemble the pressure sensor. Assemble the pressure sensor in the machining assembly slot. Step 4: Determine the main plane of the lathe spindle axis, assemble the workpiece with the lathe spindle axis, check the force on the pressure sensor, and determine the main plane of the lathe spindle axis.

[0037] In step 1, the taper bisector information of the machined part is obtained to obtain the taper bisector interval of the machined part, and the mounting plane is set according to the obtained taper bisector interval of the machined part.

[0038] In step 2, the thickness of the machining assembly groove is 4mm, the number of machining assembly grooves is 38, and the shape of the machining assembly grooves is circular.

[0039] In step 3, the assembled pressure sensor fits perfectly into the machined mounting slot.

[0040] In step 4, during the assembly of the machined part with the lathe spindle, the pressure sensor at each position can provide feedback on the force, and the force range is determined based on the feedback. The machined part is divided into four stress zones, which are labeled as the first stress zone S1, the second stress zone S2, the third stress zone S3, and the fourth stress zone S4.

[0041] The number of pressure sensors distributed in the first force zone S1, the second force zone S2, the third force zone S3, and the fourth force zone S4 is the same, and the distribution of pressure sensors in each force zone is also the same. The first force zone S1 and the third force zone S3 are symmetrically arranged, and the second force zone S2 and the fourth force zone S4 are symmetrically arranged.

[0042] Set the threshold values ​​for the force-bearing intervals, and label them as Supper and Slower respectively; If S_upper ≤ first force interval S1 ≤ S_lower, output a normal signal; if the first force interval S1 < S_upper or the first force interval S1 > S_lower, issue an early warning for the first force interval S1. If S_upper ≤ S_second force interval S2 ≤ S_lower, output a normal signal; if S_second force interval S2 < S_upper or S_second force interval S2 > S_lower, issue an early warning for the second force interval S2. If S_upper ≤ S_3 ≤ S_lower, output a normal signal; if S_3 < S_upper or S_3 > S_lower, issue a warning for the third force interval S_3. If S_upper ≤ S_4 ≤ S_lower, output a normal signal; if S_4 < S_upper or S_4 > S_lower, issue a warning for the fourth force interval S_4.

[0043] When a normal signal is output, it indicates that the position of the force-bearing zone corresponding to the main plane of the lathe spindle center is normal; When a warning is issued in the first stress zone S1, it indicates that there is an anomaly at the position of the first stress zone S1 corresponding to the main plane of the lathe spindle axis; When a warning is issued in the second stress zone S2, it indicates that there is an anomaly at the position of the second stress zone S2 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the third stress zone S3, it indicates that there is an anomaly at the position of the third stress zone S3 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the fourth stress zone S4, it indicates that there is an anomaly in the position of the fourth stress zone S4 corresponding to the main plane of the lathe spindle axis.

[0044] The principal plane of the lathe spindle center was determined using Examples 1-3, and the accuracy of the determined principal plane of the lathe spindle center was obtained. The results are shown in the table below:

[0045] As can be seen from the above, the above method can accurately determine the main plane of the lathe spindle axis, and Example 3 is the best example.

[0046] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0047] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for determining the principal plane of a lathe spindle axis by bisecting the taper of a machined part, characterized in that, Includes the following steps: Step 1: Collect the taper bisector information of the machined part, and set the mounting plane by analyzing the taper bisector information of the machined part; Step 2: Turn the assembly groove on the set mounting plane; Step 3: Assemble the pressure sensor. Assemble the pressure sensor in the machining assembly slot. Step 4: Determine the main plane of the lathe spindle axis, assemble the workpiece with the lathe spindle axis, check the force on the pressure sensor, and determine the main plane of the lathe spindle axis; In step 4, during the assembly of the machined part with the lathe spindle, the pressure sensor at each position can provide feedback on the force, and the force range is determined based on the feedback. The turned part is divided into four stress zones, which are labeled as the first stress zone S1, the second stress zone S2, the third stress zone S3, and the fourth stress zone S4, respectively. The number of pressure sensors distributed in the first force zone S1, the second force zone S2, the third force zone S3, and the fourth force zone S4 is the same, and the distribution of pressure sensors in each force zone is also the same. The first force zone S1 and the third force zone S3 are symmetrically arranged, and the second force zone S2 and the fourth force zone S4 are symmetrically arranged.

2. The method for determining the principal plane of a lathe spindle axis by bisecting the taper of a machined part according to claim 1, characterized in that: In step 1, the taper bisector information of the machined part is obtained to obtain the taper bisector interval of the machined part, and the mounting plane is set according to the obtained taper bisector interval of the machined part.

3. The method for determining the principal plane of a lathe spindle axis by bisecting the taper of a machined part according to claim 2, characterized in that: In step 2, the thickness of the machining assembly groove is 1-4mm, the number of machining assembly grooves is 30-38, and the shape of the machining assembly groove is circular.

4. The method for determining the principal plane of a lathe spindle axis by bisecting the taper of a machined part according to claim 3, characterized in that: In step 3, the assembled pressure sensor fits perfectly into the machined mounting slot.

5. The method for determining the principal plane of a lathe spindle axis by bisecting the taper of a machined part according to claim 4, characterized in that: Set the threshold values ​​for the force-bearing intervals, and label them as Supper and Slower respectively; If S_upper ≤ first force interval S1 ≤ S_lower, output a normal signal; if the first force interval S1 < S_upper or the first force interval S1 > S_lower, issue an early warning for the first force interval S1. If S_upper ≤ S_second force interval S2 ≤ S_lower, output a normal signal; if S_second force interval S2 < S_upper or S_second force interval S2 > S_lower, issue an early warning for the second force interval S2. If S_upper ≤ S_3 ≤ S_lower, output a normal signal; if S_3 < S_upper or S_3 > S_lower, issue a warning for the third force interval S_3. If S_upper ≤ S_4 ≤ S_lower, output a normal signal; if S_4 < S_upper or S_4 > S_lower, issue a warning for the fourth force interval S_4.

6. The method for determining the principal plane of a lathe spindle axis by bisecting a taper of a machined part according to claim 5, characterized in that: When a normal signal is output, it indicates that the position of the force-bearing zone corresponding to the main plane of the lathe spindle center is normal; When a warning is issued in the first stress zone S1, it indicates that there is an anomaly at the position of the first stress zone S1 corresponding to the main plane of the lathe spindle axis; When a warning is issued in the second stress zone S2, it indicates that there is an anomaly at the position of the second stress zone S2 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the third stress zone S3, it indicates that there is an anomaly at the position of the third stress zone S3 corresponding to the main plane of the lathe spindle axis. When a warning is issued in the fourth stress zone S4, it indicates that there is an anomaly in the position of the fourth stress zone S4 corresponding to the main plane of the lathe spindle axis.

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