External spline or gear major diameter measuring structure applied to automatic measuring equipment

Abstract

The utility model relates to an external spline or gear major diameter measuring structure applied to automatic measuring equipment. The measuring structure comprises a measurer mounting plate, the profiling gauge is connected to the gauge mounting plate through a pin shaft, and the side, close to the workpiece, of the profiling gauge is in a circular arc shape and used for enveloping the tooth crest of an external spline or a gear; the sensor mounting plate is connected with the measuring piece mounting plate and is used for mounting a sensor and driving the profiling measuring piece to move; a sensor; the fixing frame is used for fixing and supporting the sensor mounting plate; and the air cylinder is used for driving the profiling gauge to stretch out and draw back. The device is compact and reasonable in structure and convenient to operate, improves the adaptability and flexibility of a measurement structure through the design of cylinder driving and floating springs, can adapt to the measurement of workpieces of different types and specifications, can meet the high-efficiency measurement requirement on a large-scale production line, can effectively reduce the labor cost, and improves the production efficiency. The production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, and in particular to a measuring structure for the external spline or gear major diameter of an automatic measuring equipment. Background Technology

[0002] In modern manufacturing, accurate measurement of the external spline or gear major diameter is a crucial step in ensuring product quality and production efficiency. However, the measurement methods currently commonly used in workshops present numerous technical challenges, severely hindering improvements in production efficiency and measurement accuracy.

[0003] Traditionally, manual measurement is one of the main methods for measuring the major diameter of external splines or gears. Operators need to use manual measuring tools such as calipers and micrometers to measure each item one by one. This method is not only inefficient and difficult to meet the high-efficiency measurement requirements of large-scale production lines, but also its measurement accuracy is affected by various human factors such as the operator's skill level and the alignment between the measuring tool and the workpiece being measured, resulting in significant fluctuations. This instability makes it difficult to guarantee consistent measurement results, thus affecting product quality control.

[0004] On the other hand, while coordinate measuring machines (CMMs), as high-precision measuring devices, can accurately inspect the major diameter of external splines or gears, their high equipment cost, complex operation procedures, and relatively slow measurement speed severely limit their application in mass production on the shop floor. CMMs are more suitable for offline inspection in laboratory or precision machining environments than for real-time measurement on production lines. Therefore, they cannot achieve 100% online inspection and cannot meet the urgent needs of modern manufacturing for efficient and accurate measurement.

[0005] In summary, current methods for measuring the major diameter of external splines or gears suffer from significant technical problems, including low efficiency, low automation, and limited measurement accuracy. These issues not only affect the overall efficiency of the production line but also hinder the consistent improvement of product quality. Therefore, there is an urgent need for a new measurement structure that integrates advanced automation control technology with precise mechanical structure design to achieve efficient and accurate measurement of the major diameter of external splines or gears, thereby meeting the pressing demand for high-precision measurement in modern manufacturing.

[0006] Therefore, we propose a measurement structure for the major diameter of external splines or gears in automatic measuring equipment. Utility Model Content

[0007] To address the shortcomings of existing production technologies, the applicant provides a measuring structure for the external spline or gear major diameter in automatic measuring equipment. Through the design of cylinder drive and floating spring, the adaptability and flexibility of the measuring structure are enhanced, enabling the structure to adapt to the measurement of workpieces of different types and specifications.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A measuring structure for the major diameter of external splines or gears used in automatic measuring equipment, comprising:

[0010] A probe mounting plate is used to mount and support contour probes.

[0011] The contouring probe is connected to the probe mounting plate by a pin, and its side closest to the workpiece is arc-shaped to enclose the tooth tip of the external spline or gear.

[0012] The sensor mounting plate, connected to the probe mounting plate, is used to mount the sensor and drive the contour probe to move.

[0013] The sensor, plugged into the sensor mounting plate, is used to accurately collect measurement data of the external spline or gear major diameter;

[0014] A mounting bracket is used to fix and support the sensor mounting plate;

[0015] The cylinder, connected to the sensor mounting plate, is used to drive the telescopic movement of the contour probe.

[0016] Furthermore, the lower end of the contour measuring instrument is connected to the measuring instrument mounting plate via a floating spring. The floating spring provides a floating function to ensure that the arc of the contour measuring instrument is completely fitted with the outer diameter of the large diameter.

[0017] Furthermore, there are two probe mounting plates, which are clamped at both ends of the spline segment of the workpiece and driven by a cylinder to move closer to the workpiece, thereby achieving a tight fit between the contour probe and the spline segment of the workpiece.

[0018] Furthermore, the sensor mounting plate is movably connected to the upper end of the fixed frame via a track, and a cylinder is connected to the side wall of the sensor mounting plate to drive it to slide, so that the sensor mounting plate can move smoothly along the track under the drive of the cylinder.

[0019] Furthermore, the connection between the sensor mounting plate and the track employs a high-precision guiding mechanism to ensure stability and accuracy during movement.

[0020] Furthermore, there are two fixing brackets, located on both sides of the spline segment of the workpiece, to provide support and precise positioning for the spline measuring assembly.

[0021] Furthermore, it also includes a limiting block, which is fixed to the upper end of the fixing frame. The sensor obtains detection data by measuring the distance between itself and the limiting block.

[0022] Furthermore, it also includes a platform, on which the measuring structure is fixedly connected, and a V-shaped platform is also connected to the platform for fixing the shaft segment of the workpiece.

[0023] Furthermore, the V-shaped platform is also equipped with multiple displacement sensors that cooperate with the workpiece to detect changes in the workpiece's position.

[0024] Furthermore, the platform is also equipped with a telescopic clamping cylinder, which is located at the axial end of the workpiece and cooperates with a positioning block on the other end face of the workpiece to clamp and position the workpiece.

[0025] The beneficial effects of this utility model are as follows:

[0026] This utility model features a compact and reasonable structure, and is easy to operate. The design of cylinder drive and floating spring enhances the adaptability and flexibility of the measuring structure, enabling it to measure workpieces of different types and specifications. These advantages collectively make the measuring structure in this embodiment have broad application prospects and significant promotional value in modern manufacturing. It can not only meet the high-efficiency measurement needs of large-scale production lines, but also effectively reduce labor costs and improve production efficiency.

[0027] In addition, this utility model also has the following advantages:

[0028] Significantly improving measurement efficiency and automation, the measurement structure in this embodiment integrates automated processes with precision measurement technology, achieving efficient and accurate measurement of the major diameter of external splines or gears. Compared to traditional manual measurement methods, this structure utilizes a cylinder-driven telescopic motion of the conformal probe, combined with high-precision data acquisition from sensors, greatly shortening measurement time and improving efficiency. Simultaneously, the application of an automated control system eliminates the need for manual intervention throughout the measurement process, achieving fully automated measurement and significantly enhancing the automation level of the production line. This efficient and automated measurement method not only meets the high-efficiency measurement needs of large-scale production lines but also effectively reduces labor costs and improves production efficiency.

[0029] To ensure measurement accuracy and stability, the measurement structure in this embodiment is designed with precision and stability in mind. The arc-shaped design of the contour probe and its enveloping tooth tip ensure a tight fit between the probe and the outer circle of the workpiece being measured, thereby improving measurement accuracy. Simultaneously, the floating spring design allows the probe to automatically adjust its position, eliminating measurement errors caused by workpiece position deviations or shape errors, further enhancing measurement accuracy. Furthermore, the sensor's high sensitivity and precision enable it to detect minute dimensional changes, ensuring the accuracy of the measurement results. These design features collectively guarantee high precision and stability during the measurement process, providing strong support for product quality control.

[0030] To enhance the adaptability and flexibility of the measurement structure, this embodiment employs a cylinder-driven and floating spring design. The cylinder selection considers parameters such as stroke, speed, and thrust to meet the measurement requirements of workpieces of different sizes and shapes. The spring force of the floating spring can be adjusted according to actual measurement needs to ensure that the contour probe maintains a tight fit with the spline section of the workpiece under various working conditions. This design allows the measurement structure to adapt to the measurement of different types and specifications of workpieces, improving the versatility and flexibility of the measurement. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model.

[0032] Figure 2 This is a top view of the present invention.

[0033] Figure 3 for Figure 2 A sectional view of section AA in the middle.

[0034] in:

[0035] 100. Spline measuring assembly; 200. Workpiece; 300. Clamping cylinder; 400. Platform; 500. Displacement sensor;

[0036] 101. Probe mounting plate; 102. Sensor mounting plate; 103. Fixture; 104. Sensor; 105. Cylinder; 106. Contouring probe; 107. Floating spring;

[0037] 201. Spline section; 202. Shaft section; 203. Turntable section. Detailed Implementation

[0038] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0039] like Figures 1-3 As shown, this embodiment discloses a novel measurement structure for external spline 201 or gear major diameter applied to automatic measuring equipment, aiming to solve the problems of low efficiency, low automation, and limited measurement accuracy in existing external spline 201 or gear major diameter measurement methods. The design of this measurement structure integrates advanced automation control technology with precise mechanical structure design, aiming to achieve efficient and accurate measurement of external spline 201 or gear major diameter, meeting the urgent need for high-precision measurement in modern manufacturing. By integrating automated processes and precision measurement technology, it not only improves measurement efficiency but also significantly reduces human error, providing strong support for quality control in manufacturing.

[0040] The measuring structure mainly includes a platform 400, and a spline measuring component 100, a clamping cylinder 300, and a displacement sensor 500 connected to the platform 400. These components are used to measure the spline segment 201 of the workpiece 200. The workpiece 200 also includes a shaft segment 202 and a turntable segment 203. Furthermore, the platform 400 in this embodiment is made of high-strength material and its surface undergoes precision machining to ensure its flatness and stability, thereby reducing sources of error during the measurement process.

[0041] Workpiece 200 is supported by a V-shaped platform and clamped by a clamping cylinder 300. The cylinder 300 engages with a positioning block located on the shaft section 202 of workpiece 200 and the end face of the turntable section 203 on the other side of workpiece 200. The extension and retraction of the clamping cylinder 300 clamps and positions the workpiece 200. Multiple displacement sensors 500 are installed on the V-shaped platform to detect changes in the position of workpiece 200, ensuring that workpiece 200 is securely fixed on the V-shaped platform, providing a foundation for subsequent measurement of the spline section 201. The application of displacement sensors 500 enables real-time monitoring of the workpiece 200's position. If even a slight change occurs in the workpiece 200's position, the system can respond quickly, adjust the measurement strategy, and ensure the accuracy of the measurement results.

[0042] Specifically, such as Figure 2 and Figure 3 As shown, the spline measuring assembly 100 in this embodiment is used to measure the spline segment 201 on the workpiece 200. Its structure includes a probe mounting plate 101, a contour probe 106, a sensor mounting plate 102, a sensor 104, a fixing frame 103, and a cylinder 105. The design of this assembly fully considers the accuracy and efficiency of the measurement. By driving the extension and retraction of the contour probe 106 through the cylinder 105, combined with the high-precision data acquisition of the sensor 104, a fast and accurate measurement of the external spline 201 or the major diameter of the gear is achieved.

[0043] In this embodiment, two fixing brackets 103 are used and fixed on the platform 400. The two fixing brackets 103 are located on both sides of the spline segment 201 of the workpiece 200, providing support for the spline measuring assembly 100. The design of the fixing brackets 103 not only ensures the stability of the measuring assembly, but also ensures the accurate alignment of the contour measuring probe 106 with the spline segment 201 of the workpiece 200 during the measurement process through its precise positioning function.

[0044] The sensor mounting plate 102 is movably connected to the upper ends of two fixed brackets 103 via a track, and a cylinder 105 is connected to the side wall of the sensor mounting plate 102 to drive its sliding. This design allows the sensor mounting plate 102 to move smoothly along the track under the drive of the cylinder 105, thereby driving the contour probe 106 to accurately reach the measurement position. The connection between the sensor mounting plate 102 and the track adopts a high-precision guiding mechanism, ensuring stability and accuracy during movement and avoiding measurement errors caused by shaking or offset.

[0045] Two probe mounting plates 101 are used, clamping both ends of the splined segment 201 of the workpiece 200. The other end of each probe mounting plate 101 is fixedly connected to the sensor mounting plate 102. The probe mounting plates 101 are driven by a cylinder 105 to move closer to the workpiece 200. This clamping design not only improves measurement stability but also achieves a tight fit between the contour probe 106 and the splined segment 201 of the workpiece 200 through precise control of the cylinder 105. The clamping force of the probe mounting plates 101 can be precisely controlled by adjusting the pressure of the cylinder 105 to ensure that the workpiece 200 is not damaged during measurement while maintaining measurement accuracy.

[0046] The profile measuring instrument 106 is connected to the side wall of the measuring instrument mounting plate 101 near the workpiece 200 via a pin. Specifically, the measuring instrument mounting plate 101 has a pre-set through hole, and the profile measuring instrument 106 is connected to the side wall of this through hole via a rotating pin. The side of the profile measuring instrument 106 near the workpiece 200 is arc-shaped, facilitating its fit against splines or gears, and is used to enclose 2-3 tooth tips of the external spline or gear. This design ensures a tight fit between the profile measuring instrument 106 and the outer circle of the workpiece being measured, thereby improving measurement accuracy. The arc-shaped design of the profile measuring instrument 106 and its enclosing tooth tip shape allow for a more accurate reflection of the actual size and shape of the spline segment 201 of the workpiece 200 during measurement, thus improving measurement accuracy and reliability.

[0047] The lower end of the profile measuring instrument 106 is also connected to the measuring instrument mounting plate 101 via a floating spring 107. The floating spring 107 provides a floating function, ensuring that the arc of the profile measuring instrument 106 completely fits the outer diameter of the workpiece. The design of the floating spring 107 not only improves the flexibility of measurement but also eliminates measurement errors caused by positional deviations or shape errors of the workpiece 200 through its automatic adjustment function. The elasticity of the floating spring 107 can be adjusted according to actual measurement needs to ensure that the profile measuring instrument 106 can achieve a tight fit with the spline section 201 of the workpiece 200 under different working conditions, thereby improving the adaptability and accuracy of the measurement.

[0048] One end of the floating spring 107 is connected to the probe mounting plate 101, and the other end is connected to the contour probe 106. The elastic force of the floating spring 107 can automatically adjust the position of the contour probe 106, ensuring its complete fit with the outer circle of the workpiece. Simultaneously, the floating spring 107 also acts as a buffer, reducing impact and vibration during the measurement process and protecting the measuring components and workpiece from damage. The buffering effect of the floating spring 107 is of great significance for improving measurement stability and extending the service life of the measuring components; it can effectively absorb impact energy during the measurement process and reduce measurement errors caused by vibration.

[0049] Cylinder 105 serves as the driving component, used to drive the telescopic movement of the contour measuring probe 106. The selection of cylinder 105 takes into account parameters such as stroke, speed, and thrust to meet the measurement requirements of workpieces 200 of different sizes and shapes. During the measurement process, cylinder 105 ensures that the contour measuring probe 106 accurately reaches the measurement position and achieves a tight fit with the outer diameter of the workpiece through precise telescopic control. The driving method of cylinder 105 has the advantages of fast response speed and high control accuracy; it can complete the telescopic movement of the contour measuring probe 106 in a short time, thereby improving the efficiency and accuracy of measurement.

[0050] Sensor 104, a pen-type sensor plugged into sensor mounting plate 102, features high sensitivity and accuracy. It is used to precisely acquire measurement data of the external spline or gear major diameter and transmit the data to measurement software for processing. Sensor 104's high sensitivity allows it to detect minute dimensional changes, while its high accuracy ensures the precision of the measurement results. In conjunction with the measurement software, sensor 104 enables real-time data acquisition and processing, providing strong support for quality control during the production process.

[0051] A limiting block is connected to the front end of sensor 104, and this limiting block is fixed to the upper end of the mounting bracket 103. Sensor 104 obtains detection data based on its distance from the limiting block. Specifically, sensor 104 is connected to measurement software via a signal transmission line to achieve real-time data acquisition and processing. The installation position of sensor 104 must ensure that it maintains a certain distance from the contour measuring element 106 to avoid interference, while also ensuring accurate acquisition of measurement data. The cooperative design of sensor 104 and the limiting block not only simplifies the measurement process but also improves the stability and accuracy of the measurement. Through real-time communication with the measurement software, sensor 104 can quickly transmit the acquired data to the software for processing, thereby achieving rapid feedback and adjustment of the measurement results.

[0052] Specifically, the working principle of this embodiment is as follows:

[0053] Automated loading: The robot or gantry manipulator automatically loads the external spline or gear to be measured into the measuring equipment. During the loading process, the robot or manipulator must ensure that the workpiece 200 is accurately placed on the positioning device of the measuring equipment.

[0054] Workpiece positioning and clamping: The workpiece 200 is positioned on its outer diameter using a V-shaped table and clamped in place by a clamping cylinder 300. The V-shaped table design ensures the stability and accuracy of the workpiece 200 during the measurement process. The clamping cylinder 300 (which can be a pneumatic or hydraulic cylinder) ensures that the workpiece 200 will not move or deform during the measurement process through precise clamping force control.

[0055] Telemeter extension and contact: Cylinder 105 drives the contouring probe 106 to extend and retract to the measuring position, so that the contouring probe 106 is tightly contacted with the outer circle of the external spline or gear. During the contact process, the floating spring 107 can automatically adjust the position of the contouring probe 106 to ensure its complete contact with the outer circle of the workpiece.

[0056] Data acquisition and processing: As the cylinder drives the sensor mounting plate 102 to approach the workpiece 200, the large diameter measurement data is acquired based on the distance between the sensor and the limit block, and the data is transmitted to the measurement software for processing.

[0057] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A measuring structure for the major diameter of external splines or gears used in automatic measuring equipment, characterized in that, include: A probe mounting plate is used to mount and support the contour probe. The contouring probe is connected to the probe mounting plate by a pin, and its side closest to the workpiece is arc-shaped to enclose the tooth tip of the external spline or gear. The sensor mounting plate, connected to the probe mounting plate, is used to mount the sensor and drive the contour probe to move; the sensor, plugged into the sensor mounting plate, is used to accurately collect measurement data of the external spline or gear major diameter. A mounting bracket is used to fix and support the sensor mounting plate; The cylinder, connected to the sensor mounting plate, is used to drive the telescopic movement of the contour probe.

2. The measuring structure for the major diameter of external splines or gears applied in automatic measuring equipment according to claim 1, characterized in that, The lower end of the contour measuring instrument is connected to the measuring instrument mounting plate via a floating spring. The floating spring provides a floating function to ensure that the arc of the contour measuring instrument is completely fitted with the outer diameter of the large diameter.

3. The measuring structure for the major diameter of external splines or gears applied in automatic measuring equipment according to claim 1, characterized in that, The number of probe mounting plates is two, and the two probe mounting plates are clamped at both ends of the spline section of the workpiece. They are driven by a cylinder to move closer to the workpiece, so as to achieve a tight fit between the contour probe and the spline section of the workpiece.

4. The measuring structure for the major diameter of external splines or gears applied in automatic measuring equipment according to claim 1, characterized in that, The sensor mounting plate is movably connected to the upper end of the fixed frame via a track, and a cylinder is connected to the side wall of the sensor mounting plate to drive it to slide, so that the sensor mounting plate can move smoothly along the track under the drive of the cylinder.

5. The measuring structure for the major diameter of external splines or gears applied in an automatic measuring equipment according to claim 4, characterized in that, The connection between the sensor mounting plate and the track employs a high-precision guiding mechanism to ensure stability and accuracy during movement.

6. The measuring structure for the major diameter of external splines or gears applied in an automatic measuring equipment according to claim 1, characterized in that, The number of fixing brackets is two, and they are located on both sides of the spline section of the workpiece, respectively, to provide support and precise positioning for the spline measuring assembly.

7. A measuring structure for the major diameter of external splines or gears applied to an automatic measuring device according to claim 1, characterized in that, It also includes a limiting block, which is fixed to the upper end of the fixing frame. The sensor obtains detection data by measuring the distance between itself and the limiting block.

8. The measuring structure for the major diameter of external splines or gears applied in an automatic measuring equipment according to claim 1, characterized in that, It also includes a platform, on which the measuring structure is fixedly connected, and a V-shaped platform is also connected to the platform for fixing the shaft segment of the workpiece.

9. A measuring structure for the major diameter of external splines or gears applied in an automatic measuring device according to claim 8, characterized in that, The V-shaped platform is also equipped with multiple displacement sensors that cooperate with the workpiece to detect changes in the workpiece's position.

10. A measuring structure for the major diameter of external splines or gears applied in an automatic measuring device according to claim 9, characterized in that, The platform is also equipped with a telescopic clamping cylinder, which is located at the axial end of the workpiece and cooperates with a positioning block on the other end face of the workpiece to clamp and position the workpiece.

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