CN118682563A - Product measurement method, measurement system and storage medium - Google Patents

Abstract

The present invention discloses a product measurement method, comprising the following steps: S1, clamping the product on the chuck of a machine tool, and installing a probe on the mobile module of the machine tool; S2, the probe contacts the preset point of the product under the drive of the mobile module to obtain the current coordinates, and transmits the signal to the machine tool for recording; S3, calculating the difference between the actual coordinates measured by the probe and the reference coordinates of the preset point set by the machine tool; S4, the machine tool judges the difference, and if the error is within the set tolerance range, the automatic compensation function of the machine tool is used to compensate and modify the processing coordinate system of the machine tool; if the error is outside the set tolerance range, the machine tool alarms. The present invention adopts the above method to determine whether the clamping of the product is in place and improve the processing quality.

Description

Product measurement method, measurement system and storage medium

Technical Field

The present invention relates to the technical field of machine tool measurement, and in particular to a product measurement method, a measurement system and a storage medium.

Background Art

In order to achieve high-quality processing of processing machine tools, it is necessary to maintain an accurate relative position between the processing machine tools and the products to be processed, which requires that the products must be accurately positioned before processing. Processing machine tools can usually realize automatic tool alignment between products and tools to determine the relative position of tools and products, but they cannot obtain the installation error of the product itself. When the product is not installed in place, it will also affect the processing quality of the product.

Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art.

Summary of the invention

The object of the present invention is to provide a product measurement method, a measurement system and a storage medium to determine whether a product is clamped in place.

The object of the present invention is to achieve the following technical solution: a product measurement method, comprising the following steps:

S1. Clamp the product on the chuck of the machine tool, and install the probe on the moving module of the machine tool;

S2. The probe contacts a preset point of the product under the drive of the mobile module to obtain the current coordinates, and transmits the signal to the machine tool for recording;

S3, calculating the difference between the actual coordinates measured by the probe and the reference coordinates of the preset points set by the machine tool;

S4. The machine tool judges the difference. If the error is within the set tolerance range, the automatic compensation function of the machine tool is used to compensate and modify the machining coordinate system of the machine tool; if the error is outside the set tolerance range, the machine tool alarms.

Furthermore, the product is a shaft product, and the preset point contacted by the probe is located on the axial end face of the product.

Further, in step S2, the number of preset points on the end face of the product is not less than three, the end face of the product has an X-axis and a Y-axis perpendicular to each other, and the positions of the preset points in the X-axis and Y-axis directions are different.

Furthermore, in the axial direction of the chuck, the movable module and the chuck are arranged relative to each other, and the movable module includes a first linear module and a second linear module arranged crosswise, the movement direction of the first linear module is parallel to the axial direction of the chuck, and the movement direction of the second linear module is inclined to the X-axis and the Y-axis.

Furthermore, in step S2, a plurality of measurement programs are stored in the machine tool to correspond to the products of different diameters and lengths, and before the probe contacts the product, a measurement program corresponding to the product is selected.

Furthermore, in step S4, if the error is within 0.05 mm, the machining coordinate system of the machine tool is compensated and modified through the automatic compensation function of the machine tool; if the error is greater than 0.05 mm, the machine tool alarms.

Furthermore, in step S4, the machine tool performs compensation modification on the processing coordinate system by subtracting the difference from the parameters of the processing coordinate system of the machine tool according to the difference, so that the actual coordinates of the preset points of the product coincide with the reference coordinates.

Furthermore, after the product is processed, step S2 is executed to calculate the difference between the actual coordinates of the preset points measured after the product is processed and the reference coordinates. If the error is within the set tolerance range, the product is judged to be qualified, and the coordinate system of the program is compensated and modified through the automatic compensation function of the machine tool; if the error is outside the set tolerance range, the machine tool alarms.

The present invention provides a product measurement system, comprising:

at least one processor; and,

a memory, communicatively connected to the at least one processor;

The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute any one of the product measurement methods described above.

In addition, the present invention also provides a computer-readable storage medium storing a computer program, wherein the computer program implements any of the aforementioned product measurement methods when executed by a processor.

Compared with the prior art, the present invention has the following beneficial effects: the present invention adopts the above-mentioned measuring method, and a probe is arranged on the moving module of the machine tool, and the product is measured by the probe to determine whether the product is clamped in place, thereby avoiding the occurrence of poor processing quality of the product due to clamping errors; through the automatic compensation function of the machine tool, the processing coordinate system of the machine tool is compensated and modified when the error is small, thereby avoiding frequent installation of products and keeping the products uniform after subsequent processing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flow chart of the measuring method of the present invention.

FIG. 2 is a schematic diagram of the structure of the machine tool in the present invention.

Description of reference numerals:

100, machine tool; 110, chuck; 120, moving module; 121, first linear module; 122, second linear module; 200, probe; 300, manipulator.

DETAILED DESCRIPTION

In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is understandable that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

Please refer to FIG. 1 , which shows a product measurement method according to a preferred embodiment of the present invention, comprising the following steps:

S1, clamping the product on the chuck 110 of the machine tool 100, and installing the probe 200 on the moving module 120 of the machine tool 100;

S2. The probe 200 contacts the preset point of the product under the drive of the mobile module 120 to obtain the current coordinates and transmit the signal to the machine tool 100 for recording;

S3, calculating the difference between the actual coordinates measured by the probe 200 and the reference coordinates of the preset points set by the machine tool 100;

S4. The machine tool 100 determines the difference. If the error is within the set tolerance range, the automatic compensation function of the machine tool 100 is used to compensate and modify the machining coordinate system of the machine tool 100. If the error is outside the set tolerance range, the machine tool 100 issues an alarm.

The present invention adopts the above-mentioned measurement method, and a probe 200 is arranged on the movable module 120 of the machine tool 100. The product is measured by the probe 200 to determine whether the product is clamped in place, thereby avoiding the occurrence of poor processing quality of the product due to clamping errors; through the automatic compensation function of the machine tool 100, the processing coordinate system of the machine tool 100 is compensated and modified when the error is small, thereby avoiding frequent installation of products and keeping the products uniform after subsequent processing.

Furthermore, the product is specifically a shaft product. When the product and the chuck 110 are installed in place, the axial direction of the product is coaxial with the chuck 110. The preset point of contact of the probe 200 is located on the axial end face of the product. The probe 200 includes a contact and a transmitting module connected to the contact signal. After the contact contacts the product, the signal is transmitted to the transmitting module, and the transmitting module transmits the signal to the machine tool 100.

Further, in step S2, the number of preset points on the end face of the product is not less than three, the end face of the product has an X-axis and a Y-axis passing through the center and perpendicular to each other, the X-axis and the Y-axis are perpendicular to the axial direction of the product, and the positions of the preset points in the X-axis and Y-axis directions are different.

Further, in step S2, the machine tool 100 stores several measurement programs corresponding to products of different diameters and lengths. Before the probe 200 contacts the product, the operator operates the machine tool 100 to input the diameter and length of the product, and the machine tool 100 automatically generates a measurement program corresponding to the product. The selected corresponding measurement sequence can control the movement amount of the mobile module 120 to drive multiple preset points to be evenly distributed on the end surface of the product to improve the measurement accuracy.

Furthermore, in the axial direction of the chuck 110, the moving module 120 and the chuck 110 are arranged relative to each other, and the moving module 120 includes a first linear module 121 and a second linear module 122 arranged crosswise, the movement direction of the first linear module 121 is parallel to the axial direction of the chuck 110, and the movement direction of the second linear module 122 is inclined to the X-axis and the Y-axis. By adopting the moving module 120 of the above structure, the arrangement direction of the multiple preset points can be made parallel to the movement direction of the second linear module 122, and because the movement direction of the second linear module 122 is inclined to the X-axis and the Y-axis, it can be ensured that the positions of the multiple preset points in the X-axis and the Y-axis directions are all different, and the overall structure of the moving module 120 is simple.

Preferably, the first linear module 121 and the second linear module 122 are arranged to be inclined to the horizontal plane, so that waste chips generated during product processing are not easily retained in the mobile module 120, and the mobile module 120 is more convenient to clean.

Preferably, the machine tool 100 further includes a handling robot 300, which is suitable for automatically loading or removing products from the chuck 110. When the machine tool 100 issues an alarm, the handling robot 300 moves to the chuck 110 to remove and reinstall the product, and continues to perform steps S2 to S4. If the alarm is issued for multiple consecutive times, the handling robot 300 transports the product to a preset position, and then transports a new product to the chuck 110, and re-executes steps S2 to S4.

Further, in step S4, if the error is within 0.05 mm, the machine tool 100 determines that the product is not clamped in place or incorrectly, and no alarm is issued at this time. Through the automatic compensation function of the machine tool 100, the machine tool 100 performs compensation modification on the processing coordinate system to improve the subsequent processing accuracy; if the error is greater than 0.05 mm, the machine tool 100 determines that the product is not clamped in place or incorrectly, and the machine tool 100 issues an alarm. The machine tool 100 performs compensation modification on the processing coordinate system, specifically, the machine tool 100 subtracts the difference from the parameters of the processing coordinate system of the machine tool 100 according to the difference, so that the actual coordinates of the preset point of the product coincide with the reference coordinates, and then the processing program of the product can be executed.

Furthermore, after the machine tool 100 executes the above steps, the machine tool 100 processes the product, and when the processing is completed, step S2 is continued to be executed to calculate the difference between the actual coordinates of the preset points measured after the product processing is completed and the reference coordinates. If the error is within the set tolerance range, the product is judged to be qualified, and the coordinate system of the program is compensated and modified through the automatic compensation function of the machine tool 100 to keep the subsequent processed products uniform. If the error is outside the set tolerance range, the machine tool 100 will alarm to remind the operator that the product is out of tolerance.

Furthermore, the present invention also provides a product measurement system, comprising: at least one processor; and a memory, communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the aforementioned product measurement method.

In addition, the present invention also provides a computer-readable storage medium storing a computer program, which implements the aforementioned product measurement method when executed by a processor.

The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims (10)

1. A product measurement method, characterized in that it comprises the following steps: S1, clamping the product on a chuck (110) of a machine tool (100), and installing a probe (200) on a moving module (120) of the machine tool (100); S2, the probe (200) contacts a preset point of the product under the drive of the mobile module (120) to obtain the current coordinates, and transmits the signal to the machine tool (100) for recording; S3, calculating the difference between the actual coordinates measured by the probe (200) and the reference coordinates of the preset points set by the machine tool (100); S4. The machine tool (100) judges the difference; if the error is within a set tolerance range, the automatic compensation function of the machine tool (100) is used to compensate and modify the machining coordinate system of the machine tool (100); if the error is outside the set tolerance range, the machine tool (100) issues an alarm. 2. The product measurement method according to claim 1 is characterized in that the product is a shaft product, and the preset point contacted by the probe (200) is located on the axial end face of the product. 3. The product measurement method according to claim 2 is characterized in that, in step S2, the number of preset points on the end surface of the product is not less than three, the end surface of the product has an X-axis and a Y-axis that are perpendicular to each other, and the positions of the preset points in the X-axis and Y-axis directions are different. 4. The product measuring method according to claim 3 is characterized in that, in the axial direction of the chuck (110), the movable module (120) and the chuck (110) are arranged relative to each other, and the movable module (120) includes a first linear module (121) and a second linear module (122) arranged crosswise, the movement direction of the first linear module (121) is parallel to the axial direction of the chuck (110), and the movement direction of the second linear module (122) is inclined to the X-axis and the Y-axis. 5. The product measuring method according to claim 1 is characterized in that, in step S2, a plurality of measuring programs are stored in the machine tool (100) to correspond to the products of different diameters and lengths, and before the probe (200) contacts the product, a measuring program corresponding to the product is selected. 6. The product measurement method according to claim 1 is characterized in that, in step S4, if the error is within 0.05 mm, the machining coordinate system of the machine tool (100) is compensated and modified through the automatic compensation function of the machine tool (100); if the error is greater than 0.05 mm, the machine tool (100) alarms. 7. The product measurement method according to claim 1 is characterized in that, in step S4, the machine tool (100) compensates and modifies the processing coordinate system by subtracting the difference from the parameters of the processing coordinate system of the machine tool (100) according to the difference, so that the actual coordinates of the preset points of the product coincide with the reference coordinates. 8. The product measurement method according to claim 1 is characterized in that after the product is processed, step S2 is executed to calculate the difference between the actual coordinates of the preset points measured after the product is processed and the reference coordinates. If the error is within the set tolerance range, the product is judged to be qualified, and the coordinate system of the program is compensated and modified through the automatic compensation function of the machine tool (100); if the error is outside the set tolerance range, the machine tool (100) alarms. 9. A product measurement system, comprising: at least one processor; and, a memory, communicatively connected to the at least one processor; The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the product measurement method according to any one of claims 1 to 8. 10. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the product measurement method according to any one of claims 1 to 8 is implemented.