Movable detection device for automobile toothed plate assembly

Abstract

The utility model discloses a movable detection device for an automobile toothed plate assembly, which belongs to the technical field of detection tools, and comprises a clamp unit and a detection unit arranged on the side of the clamp unit, the clamp unit is provided with a positioning part, and the positioning part is used for radially positioning a shaft piece of the automobile toothed plate assembly; the detection unit is provided with a sliding block which moves linearly, the moving direction of the sliding block is perpendicular to the axis of the shaft piece fixed by the positioning part, and the sliding block is provided with a measuring head used for measuring the tooth pitch circle of a fluted disc of the automobile toothed plate assembly. A comparison measuring instrument used for collecting linear distance information between the sliding block and the axis of the shaft piece is arranged on the side of the sliding block. The detection tool not only improves the detection precision and efficiency, but also better meets the requirements of modern industrial production for high precision, high efficiency and high quality control through real-time feedback, a rotation function and customized design, and provides more reliable quality guarantee for enterprises.

Description

Technical Field

[0001] This utility model belongs to the field of testing tool technology, and in particular relates to a testing device for a movable automotive gear plate assembly. Background Technology

[0002] Inspection fixtures are specialized tools used in industrial production to accurately inspect the dimensions, shape, position, and other parameters of parts to ensure they meet design requirements. With the rapid development of modern industrial manufacturing, the requirements for inspection fixtures are increasingly stringent, demanding high precision, specificity, high inspection efficiency, and stable quality control. High precision requires the fixture to accurately reflect minute dimensional changes in parts, while specificity means that the fixture must be customized according to different product designs to ensure a perfect match with the workpiece. Highly efficient inspection capabilities can improve production efficiency and shorten production cycles, while stable quality control guarantees product consistency and reliability, meeting the dual demands of modern industry for both production precision and efficiency.

[0003] The automotive gear plate assembly consists of a steel tube 1 and a gear disc 2. The coaxiality between the welded steel tube axis and the gear disc pitch circle affects product quality and requires inspection using a fixture. Currently, such as... Figure 1 The inspection tool used is to radially position the steel tube of the automotive gear plate assembly using a clamping unit. Several inspection holes 3 are provided on the side of the clamping unit, and cylindrical pins 4, which serve as probes, are placed on the gear. The coaxiality is determined by whether the probe can be inserted into the corresponding inspection hole.

[0004] While the aforementioned inspection fixture is relatively simple in structure and convenient to operate, it suffers from a series of significant shortcomings and drawbacks in practical applications. Firstly, the inspection method is rather crude, employing a cylindrical pin as the probe insertion hole into the gear disc, and determining coaxiality by whether the pin can be smoothly inserted. Because the contact between the probe and the insertion hole lacks precise control, it cannot effectively reflect the minute coaxiality deviations between the gear disc and the steel pipe after welding. This contact-based judgment method lacks sufficient sensitivity and therefore cannot accurately measure the coaxiality value between the gear disc and the steel pipe.

[0005] Furthermore, existing inspection tools do not provide quantifiable numerical data, and measurement results rely primarily on manual judgment. This makes the inspection process highly susceptible to the subjective factors of operators, lacks standardization and consistency, and fails to ensure high repeatability and accuracy of results for each inspection. In production processes with high precision requirements, this subjective judgment often leads to an inability to meet the nuanced needs of quality control.

[0006] Therefore, existing inspection tools suffer from problems such as insufficient positioning accuracy, crude inspection methods, and inability to provide accurate numerical data, which limit their application in high-precision inspection. Utility Model Content

[0007] In view of the problems of insufficient positioning accuracy, crude detection methods and inability to provide accurate numerical data in existing technologies, this utility model provides a detection device for movable automotive gear assemblies.

[0008] This utility model is implemented as follows: a testing device for a movable automotive gear plate assembly, characterized in that: it includes a clamping unit and a testing unit disposed on the side of the clamping unit; the clamping unit is provided with a positioning part, which radially positions the shaft of the automotive gear plate assembly; the testing unit is provided with a linearly moving slider, the moving direction of which is perpendicular to the axis of the shaft fixed by the positioning part; the slider is equipped with a probe for measuring the pitch circle of the gear plate of the automotive gear plate assembly; and a comparative measuring instrument for collecting linear distance information between the slider and the axis of the shaft is provided on the side of the slider.

[0009] In the above technical solution, preferably, the detection unit includes a detection support base, the detection support base is mounted on the slider via a linear guide rail, the detection support base is provided with a zero-positioning hole, and the slider is provided with a limiting pin for inserting into the zero-positioning hole.

[0010] In the above technical solution, preferably, the detection support is equipped with a spring, and the spring applies a spring force to the slider to move it toward the shaft fixed by the positioning part.

[0011] In the above technical solution, preferably, the detection support is equipped with a limiting block for limiting the minimum distance between the slider and the clamping unit.

[0012] In the above technical solution, preferably, the comparative measuring instrument is a dial indicator fixed between the shaft and the slider, and the probe of the dial indicator is in contact with the slider and measures the dimensional change of the slider as it moves in a straight line.

[0013] In the above technical solution, preferably, the detection support is provided with an opening positioning hole, and the distance between the opening positioning hole and the clamping unit is greater than the distance between the zeroing positioning hole and the clamping unit.

[0014] In the above technical solution, preferably, a handle is installed on the slider.

[0015] In the above technical solution, preferably, the clamping unit includes a clamping support and a clamping clamp, the clamping support is provided with a V-shaped groove for mounting the shaft, and the clamping clamp is provided with a matching V-shaped clamping groove.

[0016] This inspection tool features structural innovation and improvement, combining the high-efficiency inspection characteristics of traditional structures with significantly improved measurement accuracy, resulting in numerous advantages and remarkable effects.

[0017] First, compared with traditional inspection tools, this tool can balance high inspection efficiency and high measurement accuracy. Traditional inspection tools usually struggle to achieve both aspects during the inspection process, while this tool, through optimized design, provides more accurate inspection data while ensuring high efficiency, greatly improving the quality of inspection.

[0018] Secondly, this inspection tool has the ability to display test values ​​in real time. Traditional inspection tools often only provide preliminary judgment results, while this tool, through the integration of a high-precision measurement system, can display the specific values ​​of parameters such as coaxiality in real time, thus providing operators with more intuitive and accurate feedback. This feature not only improves the accuracy of inspection but also speeds up the decision-making and adjustment process, thereby increasing production efficiency.

[0019] Furthermore, this inspection fixture is highly targeted. It can be customized to meet the specific product type and structural requirements, ensuring a perfect fit with the workpiece and thus improving measurement accuracy and reliability. This highly targeted feature allows the fixture to excel in diverse production environments and meet the inspection needs of different products.

[0020] Finally, the high precision, high efficiency, and real-time data feedback of this inspection tool help companies better control product quality. In industrial production, the stability and consistency of quality control are crucial. The use of this inspection tool can significantly improve the accuracy and reliability of quality inspection, thereby ensuring that the overall quality of products meets higher standards and effectively reducing the risk of rework or scrap due to coaxiality defects.

[0021] In summary, this inspection tool not only improves inspection accuracy and efficiency, but also better meets the demands of modern industrial production for high-precision, high-efficiency, and high-quality control through real-time feedback, rotation function, and customized design, providing enterprises with more reliable quality assurance. Attached Figure Description

[0022] Figure 1 This is a structural diagram of an existing inspection tool;

[0023] Figure 2 This is a schematic diagram of the detection device described in this utility model;

[0024] Figure 3 This is a schematic diagram showing the positions of the zeroing positioning hole and the spreading positioning hole in this utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0026] To address the problems of insufficient positioning accuracy, crude testing methods, and inability to provide precise numerical data in current inspection tools, this utility model provides a movable automotive gear plate assembly testing device. To further illustrate the structure of this utility model, a detailed description is provided below in conjunction with the accompanying drawings:

[0027] Please see Figure 2 and Figure 3 A testing device for a movable automotive gear plate assembly includes a clamping unit and a testing unit disposed on the side of the clamping unit. The clamping unit is used to fix the automotive gear plate assembly, mainly for radial positioning of the shafts in the assembly. The testing unit is used to test the pitch circle of the gear plate.

[0028] The fixture unit is equipped with a positioning part, which radially positions the shaft of the automotive gear assembly. In this embodiment, the fixture unit includes a fixture support 5 and a clamping clamp 6. The fixture support is provided with a V-shaped groove for clamping the shaft, and the clamping clamp is provided with a matching V-shaped pressing groove. The above-described fixture unit is an existing fixture. The radial positioning of the shaft of the automotive gear assembly is achieved by the upper and lower combined fixture support and clamping clamp.

[0029] The detection unit includes a linearly moving slider 7, the slider's movement direction being perpendicular to the axis of the shaft fixed by the positioning part. Specifically, in this embodiment, the detection unit includes a detection support 8, which mounts the slider via a linear guide rail, forming a linear moving pair with the slider. A spring 9 is mounted on the detection support, applying a spring force to the slider to move towards the shaft fixed by the positioning part. The spring's function is to provide a spring force to bring the slider closer to the automotive gear assembly being detected. In this embodiment, a secondary support, which can be a part of the detection support, is provided at the rear of the detection support. This secondary support has a guide hole, in which a pull rod 10 is installed. The axis of the pull rod is parallel to the slider's movement direction. The pull rod moves along the axis under the action of the guide hole. A spring is fitted onto the pull rod and located between the secondary support and the slider, thus achieving spring installation. The detection support is equipped with a limiting block 11 to limit the minimum distance between the slider and the clamping unit. The limiting block is located between the detection unit and the slider, preventing the slider from pressing against the clamping unit or detaching from the detection support when the component being detected is not installed. A handle 12 is mounted on the slider. The handle is used to facilitate the user to drive the slider away from the clamping unit to open the detection unit.

[0030] The slider mounts a probe 13 used to measure the pitch circle of the gear disc in the automotive gear assembly. This probe is cylindrical and pin-shaped, parallel to the positioning axis of the fixture unit. In the testing state, it pushes into the space between the teeth of the gear disc in the automotive gear assembly to define the pitch circle position.

[0031] A comparative measuring instrument is provided on the side of the slider for collecting information on the linear distance between the slider and the axis of the shaft. In this embodiment, specifically, the comparative measuring instrument is a dial indicator 14 fixed between the shaft and the slider. The probe of the dial indicator is in contact with the slider and measures the dimensional change of the slider as it moves along a straight line.

[0032] The testing support base is provided with a zeroing positioning hole 16, and the slider is provided with a limiting pin 15 for insertion into the zeroing positioning hole. The vertical distance between the zeroing positioning hole and the positioning axis of the testing fixture is the testing standard value. The testing support base is provided with an opening positioning hole 17, and the distance between the opening positioning hole and the fixture unit is greater than the distance between the zeroing positioning hole and the fixture unit.

[0033] The method of using this testing device is as follows: Insert the limit pin into the zeroing positioning hole to zero the dial indicator; pull out the limit pin, pull the handle to move the slider backward, and insert the limit pin into the expansion positioning hole with the testing unit open; mount the part to be tested in the mounting unit; pull out the limit pin, the spring pushes the slider closer to the part to be tested, the probe is inserted between the teeth of the part to be tested, the slider contacts the pin of the dial indicator, and the dial indicator shows a reading, which is recorded; pull the handle to control the slider to move backward, and keep it open by the expansion positioning hole and the limit pin; open the clamp of the clamping unit, rotate the shaft of the part to be tested by one tooth pitch, and then tighten the clamp; pull out the limit pin, the spring pushes the slider to move, the probe is inserted between the teeth, and the dial indicator shows a reading, which is recorded; repeat the operation to measure all the data between the teeth.

[0034] Compared to the traditional structure, the improved structure combines the high inspection efficiency of the traditional structure with enhanced measurement accuracy, enabling real-time feedback of inspection values. The product itself can rotate during the measurement process. This demonstrates the high precision, targeted nature, and high inspection efficiency of the fixture, resulting in better quality control. In practical use, the fixture not only detects product conformity but can also be used in the debugging and application of fixtures and tooling as needed. This requires the fixture to accurately reflect the actual values ​​of the product, helping to accurately determine problems with fixtures and tooling. Thus, the function of the fixture is extended to improve production efficiency and reduce costs.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing device for a movable automotive gear plate assembly, characterized in that: The device includes a clamping unit and a detection unit located to the side of the clamping unit. The clamping unit has a positioning part that radially positions the shaft of the automotive gear plate assembly. The detection unit has a linearly moving slider whose movement direction is perpendicular to the axis of the shaft fixed by the positioning part. The slider is equipped with a probe for measuring the pitch circle of the gear plate of the automotive gear plate assembly. A comparative measuring instrument for collecting linear distance information between the slider and the axis of the shaft is located to the side of the slider.

2. The testing device for movable automotive gear assemblies according to claim 1, characterized in that: The detection unit includes a detection support base, on which the slider is mounted via a linear guide rail. The detection support base has a zero-positioning hole, and the slider has a limiting pin for inserting into the zero-positioning hole.

3. The testing device for movable automotive gear assemblies according to claim 2, characterized in that: The detection support is equipped with a spring, which applies a spring force to the slider to move it toward the shaft fixed by the positioning part.

4. The testing device for movable automotive gear assemblies according to claim 3, characterized in that: The detection support is equipped with a limiting block to restrict the minimum distance between the slider and the clamping unit.

5. The testing device for movable automotive gear assemblies according to claim 4, characterized in that: The comparative measuring instrument is a dial indicator fixed between the shaft and the slider. The probe of the dial indicator is in contact with the slider and measures the dimensional change of the slider as it moves in a straight line.

6. The testing device for movable automotive gear assemblies according to claim 5, characterized in that: The detection support is provided with an opening positioning hole, and the distance between the opening positioning hole and the clamp unit is greater than the distance between the zeroing positioning hole and the clamp unit.

7. The testing device for movable automotive gear assemblies according to claim 6, characterized in that: A handle is installed on the slider.

8. The testing device for movable automotive gear assemblies according to claim 1, characterized in that: The clamping unit includes a clamping support and a clamping clamp. The clamping support is provided with a V-shaped groove for mounting shaft parts, and the clamping clamp is provided with a matching V-shaped clamping groove.

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