A comprehensive testing tool

Abstract

The utility model relates to a kind of comprehensive gauges, including workbench, workpiece, supporting piece, first detection device, second detection device;The supporting piece is set on the workbench;Two groups are oppositely provided in the supporting piece;The clamping slot is opened in the supporting piece;Two ends of the workpiece are clamped into the clamping slot;The bottom of the workpiece is provided with first detection surface;The first detection device array is set on the workbench;The active end of the first detection device is towards the first detection surface;The second detection device is set on the both sides of the workbench;The second detection device detects whether the workpiece position is centered.Solve the traditional comprehensive gauge detection single, precision is difficult to keep, need to detect the gauge of multiple surface synchronous detection and built-in calibration.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts manufacturing, and in particular to a comprehensive inspection tool. Background Technology

[0002] In the field of mechanical parts manufacturing, integrated inspection fixtures are core equipment for ensuring the critical dimensions and positional accuracy of workpieces. Their comprehensiveness and accuracy directly determine the compatibility of product assembly. However, traditional integrated inspection fixtures have many technical shortcomings in practical applications, making it difficult to meet the demands of high-precision production.

[0003] Traditional inspection fixtures often focus on single-dimensional inspection or require multiple changes of inspection stations to complete multi-faceted inspection of a workpiece. This is cumbersome and prone to errors due to positioning deviations. For the bottom inspection surface and the centering positions at both ends of the workpiece, there is a lack of integrated structures for simultaneous inspection, requiring step-by-step operations. This not only reduces inspection efficiency but may also lead to cumulative errors due to multiple positioning steps, affecting data reliability.

[0004] Meanwhile, the calibration mechanism of traditional inspection fixtures is imperfect, lacking built-in standard calibration structures. After long-term use, the inspection device is prone to accuracy drift, requiring separate calibration with external standard instruments, which is complex and time-consuming, and cannot guarantee inspection accuracy in real time. Some inspection fixtures do not provide stable limiting and fixing of workpieces, especially for workpieces with circular grooves, which lack targeted positioning structures and are prone to displacement during inspection, further aggravating inspection deviations. Utility Model Content

[0005] This application provides a comprehensive inspection tool that solves the problems of traditional comprehensive inspection tools in the prior art, which have single detection capabilities, difficulty in ensuring accuracy, and require simultaneous multi-faceted detection and built-in calibration.

[0006] The technical solution adopted in this application is as follows.

[0007] A comprehensive inspection fixture includes a worktable, a workpiece, a support component, a first inspection device, and a second inspection device. The support component is disposed on the worktable. Two sets of the support components are arranged opposite each other. The support component has a slot. Both ends of the workpiece are inserted into the slot. The bottom of the workpiece has a first inspection surface. The first inspection device array is disposed on the worktable. The working end of the first inspection device faces the first inspection surface. The second inspection device is disposed on both sides of the worktable. The second inspection device detects whether the workpiece is centered.

[0008] As a further improvement to the above technical solution: The workbench is provided with calibration support components; the calibration support component array consists of several components; standard components are provided on the calibration support components; the standard components are used to test the gauge accuracy of the second testing device.

[0009] A circular groove is provided at one end of the workpiece; the second detection device array is arranged in three groups; two groups of the second detection devices respectively detect both ends of the workpiece; the detection end of one group of the second detection devices is inserted into the circular groove to restrict the position of the workpiece.

[0010] Both the first and second detection devices consist of a dial indicator and a probe holder.

[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. By adopting an integrated design of a first detection device and two sets of second detection devices, the problem of cumbersome operation and large cumulative errors caused by the step-by-step, multi-station detection required by traditional inspection tools is solved. Two sets of opposing support members fix the two ends of the workpiece through slots, fully exposing the first detection surface on the bottom of the workpiece. The arrayed first detection devices, with their working ends facing the first detection surface, can simultaneously collect dimensional data from multiple key points on the bottom of the workpiece, eliminating the need for point-by-point detection or changing stations. Simultaneously, the second detection devices on both sides of the worktable have clearly defined functions: two sets respectively detect the positional accuracy of the two ends of the workpiece, while one set inserts its detection end into the workpiece's circular groove, both limiting workpiece displacement and simultaneously detecting the alignment of the groove position with the workpiece.

[0012] 2. By employing an array of calibration supports and standard parts on the worktable, the traditional fixtures are free from the constraints of relying on external instruments for calibration, complex operation, and the inability to guarantee accuracy in real time. The standard parts are pre-set with precise dimensional parameters. When the fixture experiences accuracy drift after long-term use, there is no need to disassemble the testing device or use external standard instruments. Simply align the testing end of the second testing device with the standard parts to quickly verify the fixture's accuracy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the integrated inspection tool in this utility model.

[0014] Figure 2 for Figure 1 A magnified view of part A in the image.

[0015] In the figure: 1. Workbench; 2. Workpiece; 3. Support component; 4. First detection device; 5. Second detection device; 6. Calibration support component; 7. Standard component; 21. First detection surface; 22. Circular groove; 31. Slot. Detailed Implementation

[0016] This application provides a comprehensive inspection tool that solves the problems of traditional comprehensive inspection tools in the prior art, which have single detection capabilities, difficulty in ensuring accuracy, and require simultaneous multi-faceted detection and built-in calibration.

[0017] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows: To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] Workbench 1 and support 3: Workbench 1 is a cast iron plate with a ground surface; two sets of support 3 are symmetrically fixed on workbench 1. The top of the support 3 has an arc-shaped slot 31, and the two ends of the workpiece 2 can be accurately inserted into the slot 31 to achieve lateral positioning; the flat detection surface at the bottom of the workpiece 2 is parallel to the surface of workbench 1, and sufficient space is reserved below to install the first detection device 4.

[0019] The layout of the first detection device 4: Multiple sets of first detection devices 4 are arrayed around the bottom area of ​​the workpiece 2 on the surface of the worktable 1. The probe base is fixed on the worktable 1, the dial indicator probe is vertically upward, and the working end is precisely aligned with the key points of the first detection surface 21 at the bottom of the workpiece 2, and the flatness data of multiple points can be collected simultaneously.

[0020] The second detection device 5 has the following functions: Three sets of the second detection device 5 are installed on both sides of the worktable 1: two sets are located at both ends of the worktable 1, with the probes horizontally facing the cylindrical sides of both ends of the workpiece 2, used to detect the centering accuracy of the two ends of the workpiece 2; one set is located on one side of the worktable 1, with the probe horizontally aligned with the circular groove 22 of the workpiece 2, and the detection end can be inserted into the circular groove 22, which both restricts the longitudinal and circumferential displacement of the workpiece 2 and simultaneously detects the positional deviation of the circular groove 22. The probe holders of all three sets of the second detection device 5 are fixed by adjusting brackets, and the position of the probes can be finely adjusted to adapt to the size of the workpiece 2.

[0021] Calibration support 63 and standard part 7: Multiple sets of calibration support 63 are fixed in an array on one side of the worktable 1, and standard part 7 is placed on top of the support 3. The bottom detection surface, the two end cylinders, and the circular groove 22 of the standard part 7 are all completely aligned with the workpiece 2 to be tested, and can be used to calibrate the accuracy of the first detection device 4 and the second detection device 5.

[0022] Positioning and debugging: Insert both ends of the standard part 7 into the slots 31 of the support part 3, adjust the three sets of second detection devices 5 so that the detection end of the circular groove 22 is inserted into the circular groove 22 of the standard part 7, and the probes of the two detection devices are in contact with the cylindrical side of the standard part 7. Read the dial indicator reading and return it to zero to ensure the accuracy of the detection benchmark; adjust the multiple sets of first detection devices 4 so that the dial indicator probes are in contact with the bottom detection surface of the standard part 7, and return the reading to zero to complete the initial calibration of the detection devices.

[0023] Stability test: The standard part was repeatedly inserted and removed more than 7 times, and the changes in the readings of each group of testing devices were observed to ensure that the positioning deviation and the fluctuation of the dial indicator reading were controlled within a very small range to meet the testing accuracy requirements.

[0024] The operator aligns both ends of the gear shaft workpiece 2 to be detected with the slots 31 of the support 3, and gently places it so that the workpiece 2 is stuck into the slots 31; then pushes the workpiece 2 towards the second detection device 5 at the round groove 22 end until the probe of this device inserts into the round groove 22 of the workpiece 2, completing the double positioning of the workpiece 2 in the horizontal, vertical and circumferential directions. At this time, the first detection surface 21 at the bottom of the workpiece 2 just contacts the probes of multiple groups of first detection devices 4. The entire loading and positioning process does not require additional clamping and takes a short time.

[0025] After the workpiece 2 is positioned, the operator synchronously reads the data of all detection devices: First detection device 4: The readings of multiple groups of dial indicators directly reflect the flatness deviation of each point at the bottom of the workpiece 2. If the absolute values of all readings are controlled within the allowable range, it is determined that the bottom flatness is qualified; Second detection device 5: If the difference between the readings of the two end dial indicators is controlled within the allowable range, it is determined that the alignment of the two ends of the workpiece 2 is qualified; if the reading of the dial indicator at the round groove 22 end is controlled within the allowable range, it is determined that the position of the round groove 22 is qualified; If all data are qualified, the workpiece 2 is a qualified product. If any data exceeds the standard, it is marked as unqualified and the exceeded items are recorded. The time taken for reading and judging the single detection data is short.

[0026] Calibration operation: After detecting a certain number of workpieces 2, a quick calibration is carried out: Place the standard part 7 on the calibration support 63, adjust the probes of the three groups of second detection devices 5 to align with both ends and the round groove 22 of the standard part 7, and the probes of multiple groups of first detection devices 4 to align with the bottom of the standard part 7, and read the readings of each group of dial indicators. If the reading deviation is controlled within the allowable range, it means that the accuracy of the inspection tool is normal; if the deviation exceeds the allowable range, adjust the position of the probe seat to make the reading return to zero to complete the calibration. The whole process takes a short time.

[0027] Unloading and sorting: After the detection is completed, the operator gently pulls the workpiece 2 outwards to disengage the round groove 22 from the probe of the second detection device 5, and takes out the workpiece 2: The qualified products are put into the finished product basket, and the unqualified products are put into the classified rework basket for the next round of detection.

[0028] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A comprehensive inspection tool, characterized in that, The device includes a workbench (1), a workpiece (2), a support (3), a first detection device (4), and a second detection device (5). The support (3) is mounted on the workbench (1). Two sets of support (3) are arranged opposite each other. The support (3) has a slot (31). Both ends of the workpiece (2) are inserted into the slot (31). The bottom of the workpiece (2) has a first detection surface (21). The first detection device (4) is arranged in an array on the workbench (1). The working end of the first detection device (4) faces the first detection surface (21). The second detection device (5) is arranged on both sides of the workbench (1). The second detection device (5) detects whether the position of the workpiece (2) is aligned.

2. The integrated inspection fixture as described in claim 1, characterized in that, The workbench (1) is provided with a calibration support (6); the calibration support (6) is arranged in an array of several; the calibration support (6) is provided with a standard part (7); the standard part (7) is used to detect the gauge accuracy of the second detection device (5).

3. The integrated inspection fixture as described in claim 1, characterized in that, One end of the workpiece (2) is provided with a circular groove (22); the second detection device (5) is arranged in three groups; two groups of the second detection device (5) respectively detect the two ends of the workpiece (2); the detection end of one group of the second detection device (5) is inserted into the circular groove (22) to restrict the position of the workpiece (2).

4. The integrated inspection fixture as described in claim 1, characterized in that, Both the first detection device (4) and the second detection device (5) consist of a dial indicator and a probe holder.

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