A multi-probe surface roughness measuring instrument

Abstract

The utility model discloses a kind of multi-measuring head surface roughness measuring instrument, belong to surface measurement technical field.The measuring instrument base is support foundation, and workbench is equipped in middle part, and it is connected with base through three degrees of freedom mechanism (X, Y, Z axis moving mechanism), and position can be flexibly adjusted.Measuring head has first, second, third measuring head, and multiple positions of object surface can be simultaneously measured.Workbench has positioning member to ensure that measured object is positioned accurately, and surface is treated by antiskid, wear-resistant.Display device is connected with measuring head, for showing and analyzing measurement result, and data storage module can store measurement information.This measuring instrument is high in measuring efficiency, high in precision, good in stability, strong in environmental adaptability, and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of metrology and testing equipment technology, specifically to a multi-head surface roughness measuring instrument. Background Technology

[0002] Surface roughness is an important indicator for measuring the microscopic geometric errors of an object's surface, and it has a crucial impact on many properties of parts, such as fit, wear resistance, and fatigue strength. Accurate measurement of surface roughness is essential in industrial production and quality control.

[0003] Existing surface roughness measuring instruments are mainly divided into two categories: contact and non-contact. Contact measuring instruments obtain surface roughness information by sliding a stylus across the surface being measured and using a sensor to detect changes in the stylus's displacement. However, this method has significant drawbacks: stylus sliding can scratch the surface being measured, especially soft or precision surfaces, and stylus wear can affect measurement accuracy and stability, increasing usage costs and maintenance difficulty. While non-contact measuring instruments avoid surface damage, existing products have shortcomings in terms of measurement accuracy, environmental adaptability, and cost. Some optical measuring instruments have stringent requirements for the measurement environment and are easily affected by external light interference, leading to inaccurate measurement results; laser measuring instruments, although highly accurate, are expensive and sensitive to the color, reflectivity, and other characteristics of the surface being measured, resulting in larger errors when measuring special surfaces.

[0004] Furthermore, most existing measuring instruments are equipped with only a single measuring head. When it is necessary to measure the roughness of multiple locations or different features on the surface of an object, the operation is cumbersome, the measurement efficiency is low, and it is difficult to guarantee the consistency and accuracy of the measurements. Therefore, developing a surface roughness measuring instrument with multiple measuring heads, high measurement accuracy, strong environmental adaptability, and convenient operation is of great practical significance. Utility Model Content

[0005] In view of the problems and shortcomings of the existing technology, this utility model provides a multi-head surface roughness measuring instrument.

[0006] The technical solution of this utility model is as follows:

[0007] A multi-head surface roughness measuring instrument includes a base as the supporting foundation for the entire measuring instrument, a worktable for placing the object to be measured is provided in the middle, and a roughness measuring head is connected to the worktable via a bracket.

[0008] The worktable is connected to the base via a three-degree-of-freedom mechanism, and the roughness measurement head includes a first measuring head, a second measuring head, and a third measuring head.

[0009] The three-degree-of-freedom mechanism includes:

[0010] The X-axis moving mechanism and the Y-axis moving mechanism are mounted on the base. The X-axis moving mechanism is connected to the upper part of the Y-axis moving mechanism and moves reciprocally along the Y direction under its drive. The top of the X-axis moving mechanism is connected to the worktable and drives the worktable to move reciprocally in a straight line along the X-axis.

[0011] The Z-axis moving mechanism is connected to the base via a right-angle support, located behind the X-axis and Y-axis moving mechanisms, and above the worktable.

[0012] The first measuring head is fixedly mounted on the opposite side of the drive component of the X-axis moving mechanism via a vertical bracket; the second measuring head is fixedly mounted on the right-angle support for mounting the Z-axis moving mechanism and is located behind the worktable; the third measuring head is movably connected to the Z-axis moving mechanism and moves up and down with it.

[0013] The first measuring head, the second measuring head, and the third measuring head are non-contact measuring heads based on optical principles, or contact measuring heads, or a combination of both.

[0014] The workbench is equipped with a first positioning component and a second positioning component, which are used to position the object being measured.

[0015] The first positioning element is a positioning block set at a right angle.

[0016] The second positioning element consists of two positioning pins spaced at intervals.

[0017] The X-axis moving mechanism, Y-axis moving mechanism, and Z-axis moving mechanism are screw drive mechanisms, linear motor drive mechanisms, or other mechanisms capable of linear movement.

[0018] It also includes a display device connected to the first measuring head, the second measuring head, and the third measuring head for displaying and analyzing measurement results.

[0019] The measuring instrument is also equipped with a data storage module for storing measurement results and related information.

[0020] The surface of the workbench is treated with anti-slip and wear-resistant materials.

[0021] The beneficial effects of this utility model are:

[0022] Compared with existing technologies, the multi-head surface roughness measuring instrument of this invention features a multi-head design, enabling simultaneous roughness measurement of multiple locations or different features on the surface of the object being measured, significantly improving measurement efficiency. A three-degree-of-freedom mechanism precisely controls the relative position of the measuring head and the object being measured, ensuring measurement accuracy and stability. It employs a non-contact measurement method (or a combination of contact and non-contact methods designed to avoid surface damage), preventing damage to the measured surface. It has relatively low requirements for the measurement environment, enabling measurements under different lighting and temperature conditions. Furthermore, it is easy to operate, reducing operational difficulty and improving the user experience. Attached Figure Description

[0023] Figure 1 This is a first-view structural diagram of an embodiment;

[0024] Figure 2 This is a schematic diagram of the second-view structure of the embodiment;

[0025] The components represented by the reference numerals in the diagram are:

[0026] 1. Base; 2. Worktable; 3. First measuring head; 4. Second measuring head; 5. Third measuring head; 6. X-axis moving mechanism; 7. Y-axis moving mechanism; 8. Z-axis moving mechanism; 21. First positioning component; 22. Second positioning component. Detailed Implementation

[0027] The technical means adopted to achieve the intended purpose of this utility model will be further described below with reference to the accompanying drawings of the embodiments of this utility model.

[0028] Example

[0029] See Figure 1 and Figure 2 The multi-head surface roughness measuring instrument of this utility model includes a base 1, which serves as the supporting foundation for the entire measuring instrument. A worktable for placing the object to be measured is provided in the middle of the base, and a roughness measuring head is connected to the worktable via a bracket.

[0030] The worktable is connected to the base via a three-degree-of-freedom mechanism, and the roughness measurement head includes a first measuring head 3, a second measuring head 4, and a third measuring head 5.

[0031] The three-degree-of-freedom mechanism includes an X-axis moving mechanism 6, a Y-axis moving mechanism 7, and a Z-axis moving mechanism 8.

[0032] The Y-axis moving mechanism 7 is mounted on the base 1, the X-axis moving mechanism 6 is connected to the upper part of the Y-axis moving mechanism 7 and moves back and forth along the Y direction under its drive, the top of the X-axis moving mechanism 6 is connected to the worktable 2 and drives the worktable to move back and forth linearly along the X-axis.

[0033] The Z-axis moving mechanism 8 is connected to the base 1 via a right-angle support, located behind the X-axis moving mechanism 6 and the Y-axis moving mechanism 7, and above the worktable 2.

[0034] The first measuring head 3 is fixedly mounted on the opposite side of the drive component of the X-axis moving mechanism 6 via a vertical bracket; the second measuring head 4 is fixedly mounted on the right-angle support for mounting the Z-axis moving mechanism 8 and is located behind the worktable; the third measuring head 5 is movably connected to the Z-axis moving mechanism 8 and moves up and down with it.

[0035] In use, the object to be measured is placed on the worktable 2 and positioned using the first positioning element 21 and the second positioning element 22. Based on the shape of the object and the measurement requirements, the position of the worktable is adjusted using the X-axis moving mechanism 6 and the Y-axis moving mechanism 7, so that its right and rear surfaces are aligned with the first measuring head 3 and the second measuring head 4. The position of the third measuring head 5 is adjusted using the Z-axis moving mechanism 8, aligning the measuring head with the upper surface of the object. After the measuring instrument is started, the first measuring head 3, the second measuring head 4, and the third measuring head 5 simultaneously or separately measure the roughness of corresponding positions on the surface of the object. The measurement results are displayed and analyzed through a display device and can also be stored in a data storage module.

[0036] Preferably, a first positioning element 21 and a second positioning element 22 are installed on the worktable 2. More preferably, the first positioning element 21 is a positioning block set at a right angle, and the second positioning element 22 consists of two spaced positioning pins. The right-angle setting of the first positioning element 21 can position one corner of the object being measured, and the two spaced positioning pins of the second positioning element 22 can further restrict the position of the object being measured, ensuring accurate positioning of the object during measurement. A display device is connected to the measuring head and equipped with a data storage module.

[0037] The X-axis moving mechanism 6, Y-axis moving mechanism 7, and Z-axis moving mechanism 8 can be made of lead screw drive mechanism, linear motor drive mechanism, or other mechanisms that can achieve linear movement, so as to accurately control the relative position of the measuring head and the object being measured.

[0038] In addition, the measuring instrument includes a display device connected to the first measuring head 3, the second measuring head 4, and the third measuring head 5 for displaying and analyzing measurement results. The measuring instrument is also equipped with a data storage module for storing measurement results and related information, facilitating subsequent retrieval and statistical analysis.

[0039] The surface of the worktable 2 is treated with anti-slip and wear-resistant materials to prevent the object being measured from sliding during the measurement process and to extend the service life of the worktable. In addition, the measuring instrument is equipped with a heat dissipation module located on both sides of the base 1, using cooling fans to effectively reduce the heat generated during long-term operation, ensuring the normal operation of all components and extending the service life of the measuring instrument.

[0040] The above description represents a preferred embodiment of the present invention. However, the present invention is not limited to the above-described embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, all variations, equivalent substitutions, and improvements made without departing from the concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-head surface roughness measuring instrument, including a base (1) as the supporting foundation of the entire measuring instrument, wherein a worktable for placing the object to be measured is provided in the middle, and a roughness measuring head is connected to the worktable above the worktable by a bracket; Its features are, The worktable is connected to the base via a three-degree-of-freedom mechanism. The roughness measurement head includes a first measuring head (3), a second measuring head (4), and a third measuring head (5). The three-degree-of-freedom mechanism includes: X-axis moving mechanism (6) and Y-axis moving mechanism (7). Y-axis moving mechanism (7) is mounted on base (1). X-axis moving mechanism (6) is connected to the upper part of Y-axis moving mechanism (7) and moves back and forth along the Y direction under its drive. The top of X-axis moving mechanism (6) is connected to worktable (2) and drives worktable to move back and forth in a straight line along X-axis. And the Z-axis moving mechanism (8) is connected to the base (1) by a right-angle support, located behind the X-axis moving mechanism (6) and the Y-axis moving mechanism (7), and above the worktable (2); The first measuring head (3) is fixedly installed on the opposite side of the drive component of the X-axis moving mechanism (6) by a vertical bracket; the second measuring head (4) is fixedly installed on the right-angle support of the Z-axis moving mechanism (8) and located behind the worktable; the third measuring head (5) is movably connected to the Z-axis moving mechanism (8) and moves up and down with it.

2. The multi-head surface roughness measuring instrument according to claim 1, characterized in that, The first measuring head (3), the second measuring head (4) and the third measuring head (5) are non-contact measuring heads based on optical principles, or contact measuring heads, or a combination of both.

3. The multi-head surface roughness measuring instrument according to claim 1, characterized in that, The workbench (2) is provided with a first positioning component (21) and a second positioning component (22) for positioning the object being measured.

4. The multi-head surface roughness measuring instrument according to claim 3, characterized in that, The first positioning element (21) is a positioning block set at a right angle.

5. A multi-head surface roughness measuring instrument according to claim 3 or 4, characterized in that, The second positioning element (22) is a positioning pin with only two intervals.

6. A multi-head surface roughness measuring instrument according to claim 1, characterized in that, The X-axis moving mechanism (6), Y-axis moving mechanism (7) and Z-axis moving mechanism (8) are screw drive mechanisms or linear motor drive mechanisms.

7. A multi-head surface roughness measuring instrument according to claim 1, characterized in that, It also includes a display device connected to the first measuring head (3), the second measuring head (4) and the third measuring head (5) for displaying and analyzing measurement results.

8. A multi-head surface roughness measuring instrument according to claim 1, characterized in that, The measuring instrument is also equipped with a data storage module for storing measurement results and related information.

9. A multi-head surface roughness measuring instrument according to claim 1, characterized in that, The surface of the workbench (2) is treated with anti-slip and wear-resistant properties.

Images