A quick detection device for keyway height-width comparison ring

Abstract

The utility model relates to the technical field of testing equipment, disclose a kind of quick detection device of keyway height width comparison ring, including comparison groove testing fixture, the detection surface of comparison groove testing fixture is adapted to the keyway profile of keyway height width comparison ring, and the width size of comparison groove testing fixture corresponds with the standard width tolerance range of keyway;Comparison groove testing fixture is fixed with sliding block, sliding block is slidably connected with support seat, support seat is fixed on base, and slide rail and quick plug assembly are arranged in support seat;Base is detachably connected with limiting cylinder.The utility model can realize the small batch quick detection of keyway height width comparison ring, and improve detection accuracy and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of inspection equipment technology, specifically to a rapid inspection device for a keyway height-width comparison ring. Background Technology

[0002] Keyway height and width comparison rings are specialized ring gauges used in mechanical manufacturing for the rapid inspection of keyway dimensions in shaft and hub parts. The width and contour accuracy of the comparison ring directly determine the accuracy of the inspection of the part being measured. If the keyway width of the comparison ring is out of tolerance or the contour is deformed, it will lead to misjudgment of the keyway of the actual part, thus affecting the subsequent assembly quality. Therefore, this type of comparison ring must undergo rigorous testing of its keyway before leaving the factory or during periodic calibration to ensure that it meets the requirements for value transfer.

[0003] Currently, the inspection of keyway height and width comparison rings mostly relies on manual single-point measurement using vernier calipers, which has the following problems: First, the comparison groove of the keyway height and width comparison ring has an inner ring structure, and the measuring jaws of traditional measuring tools cannot completely fit the contour of the comparison groove, resulting in low measurement accuracy of the width dimension, especially unable to detect the contour consistency (such as local protrusions and depressions) over the entire length of the comparison groove; second, the lack of a dedicated positioning structure during the inspection process makes the keyway height and width comparison ring prone to displacement, further amplifying the measurement error; third, for the inspection of batches of keyway height and width comparison rings, frequent manual adjustment of the measuring tool position and readings is required, which is cumbersome and inefficient, making it difficult to meet the batch inspection needs of tool production or calibration.

[0004] Therefore, there is an urgent need for a rapid detection device for the keyway height and width comparison ring that can achieve rapid positioning, contour fitting detection, and efficient batch screening, in order to solve the problems of insufficient accuracy and low efficiency mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a rapid detection device for a keyway height-width comparison ring, which can accurately and efficiently detect the keyway width of the keyway height-width comparison ring.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A rapid detection device for a keyway height-width comparison ring includes a comparison groove fixture, wherein the detection surface of the comparison groove fixture is adapted to the keyway contour of the keyway height-width comparison ring, and the width dimension of the comparison groove fixture corresponds to the standard width tolerance range of the keyway.

[0007] Preferably, the rapid detection device for the keyway height-width comparison ring further includes a base for placing the keyway height-width comparison ring to be detected, a support seat vertically fixed to the base, and a slider slidably connected to the support seat. The comparison groove gauge is fixedly connected to the slider, and the bottom surface of the comparison groove gauge faces the base.

[0008] Preferably, the support base is provided with slide rails distributed along the height direction of the support base, and the slider is slidably connected to the slide rails.

[0009] Preferably, a quick-connect assembly is installed on the support base, the quick-connect assembly being used to fix the position of the slider within the support base.

[0010] Preferably, the quick-connect assembly includes a pin and a mounting cylinder; the mounting cylinder is fixed inside the support base at one end away from the base, and an inner baffle, a retaining plate, and an outer baffle are sequentially spaced apart along the direction away from the slider inside the mounting cylinder; the pin passes through the inside of the mounting cylinder, and a spring is sleeved on its outer periphery, and a rectangular retaining block is welded to each of the radial sides of the outer periphery of the pin; the spring is limited between the rectangular retaining blocks on both sides and the inner baffle; the length of both rectangular retaining blocks is greater than the gap between the retaining plate and the outer periphery of the pin.

[0011] Preferably, the slider has an insertion hole on the side away from the comparison slot gauge, and the size of the insertion hole is adapted to the pin.

[0012] Preferably, the slide rail is provided with limiting protrusions at both ends, which are used to limit the extreme positions of the slider sliding along the slide rail.

[0013] Preferably, the base can also be detachably connected to a limiting cylinder, which is adapted to the outer periphery of the keyway height-width comparison ring.

[0014] Preferably, the comparison groove fixture is provided with scale lines, and the spacing between the scale lines is consistent with the thickness of the keyway height-width comparison ring.

[0015] The beneficial effects of this utility model are: 1. This utility model, by setting a comparison groove gauge that is adapted to the keyway contour of the keyway height-width comparison ring and whose width dimension corresponds to the standard tolerance range, can directly and quickly determine whether the width dimension and contour accuracy of the comparison groove are qualified by observing the fit between the comparison groove gauge and the comparison groove, without the need for complex readings and calculations, significantly improving the intuitiveness and efficiency of the inspection, and solving the problem that traditional single-point measurement is difficult to reflect the overall contour accuracy of the comparison groove.

[0016] 2. This utility model, through the cooperative structure of setting a comparison groove gauge and a slider fixed together, and the slider sliding along the support base slide rail, combined with the quick-release assembly for quick locking and releasing of the slider, as well as the anti-detachment protection of the limit protrusion of the slide rail and the precise positioning of the comparison ring by the detachable limit cylinder of the base, can achieve efficient continuous operation for small batch testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the keyway height-width comparison ring of Embodiment 1 of this utility model; Figure 2 This is a front view schematic diagram of the rapid detection device for the keyway height-width comparison ring of Embodiment 1 of this utility model; Figure 3 This is a top view of the rapid detection device for the keyway height-width comparison ring of Embodiment 1 of this utility model; Figure 4 A top cross-sectional view of the support base in Embodiment 1 of this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0018] Reference numerals: 10-Keyway height and width comparison ring, 11-Comparison groove, 20-Comparison groove gauge, 30-Base, 40-Slider, 41-Insertion hole, 50-Support seat, 60-Quick-connect assembly, 61-Pin, 62-Rectangular locking block, 63-Outer baffle, 64-Clamping plate, 65-Inner baffle, 66-Spring, 67-Mounting cylinder, 70-Limiting cylinder. Detailed Implementation

[0019] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0020] Example 1 like Figures 1 to 5 As shown, this embodiment discloses a rapid detection device for a keyway height-width comparison ring 10, including a comparison groove fixture 20. The detection surface of the comparison groove fixture 20 is adapted to the keyway contour of the keyway height-width comparison ring 10, and the width dimension of the comparison groove fixture 20 corresponds to the standard width tolerance range of the keyway. During design, the detection surface of the comparison groove fixture 20 is strictly machined according to the contour of the comparison groove 11 of the keyway height-width comparison ring 10 to ensure that the detection surface can perfectly fit the keyway contour. When it is necessary to detect the comparison groove 11, simply fit the detection surface of the comparison groove fixture 20 to the comparison groove 11 of the keyway height-width comparison ring 10. The fit can then be used to preliminarily determine whether the keyway width dimension is within the standard tolerance, and whether there are any problems such as deformation, protrusions, or depressions in the keyway contour.

[0021] To enable flexible movement and fixation of the comparison slot gauge 20, the device also includes a base 30 for placing the keyway height-width comparison ring 10 to be inspected, a support 50 vertically fixing the base 30, and a slider 40 slidably connected to the support 50. The comparison slot gauge 20 is fixedly connected to the slider 40, and the bottom surface of the comparison slot gauge 20 faces the base 30. The slider 40 is used to fix the position of the comparison slot gauge 20, avoiding errors caused by operators holding the comparison slot gauge 20 by hand. The slider 40 can slide up and down along the support 50 to facilitate batch inspection. When a batch of keyway height-width comparison rings 10 has been inspected, and the comparison slot gauge 20 needs to be removed to take out the inspected keyway height-width comparison rings 10, the slider 40 is moved upward. When the next batch of keyway height-width comparison rings 10 to be inspected is placed, the slider 40 is moved downward so that the comparison slot gauge 20 corresponds to the keyway of the keyway height-width comparison ring 10, and the inspection operation is performed.

[0022] The support base 50 is equipped with slide rails distributed along its height direction, and the slider 40 is slidably connected to the slide rails. The slide rails can limit the sliding direction of the slider 40, prevent the slider 40 from deviating during sliding, and reduce the friction between the slider 40 and the support base 50, ensuring that the slider 40 slides more smoothly.

[0023] A quick-connect assembly 60 is installed on the support base 50. The quick-connect assembly 60 includes a pin 61 and a mounting cylinder 67. The mounting cylinder 67 is fixed inside the support base 50 at one end away from the base 30. Inside the mounting cylinder 67, along the direction away from the slider 40, an inner baffle 65, a retaining plate 64, and an outer baffle 63 are arranged in sequence at intervals. The pin 61 passes through the inside of the mounting cylinder 67. A spring 66 is sleeved on the outer periphery of the pin 61, and a rectangular retaining block 62 is welded to each of the radial sides of the outer periphery of the pin 61. The spring 66 is limited between the rectangular retaining blocks 62 on both sides and the inner baffle 65. The length of the two rectangular retaining blocks 62 is greater than the gap between the retaining plate 64 and the outer periphery of the pin 61. A socket 41 is provided on the side of the slider 40 away from the comparison groove gauge 20. The size of the socket 41 is adapted to the pin 61.

[0024] The quick-connect assembly 60 is used to fix the position of the slider 40 within the support base 50. When the slider 40 moves to its highest position, first rotate the pin 61 to align the rectangular locking blocks 62 on both radial sides of the outer periphery of the pin 61 with the gap between the locking plate 64 and the outer periphery of the pin 61. Then press down the pin 61 to allow the rectangular locking blocks 62 to extend into the locking plate 64. Afterward, rotate the pin 61 in the opposite direction. At this time, the rectangular locking blocks 62 will be locked due to their structural cooperation with the locking plate 64, thus fixing the pin 61 and preventing it from springing back under the force of the spring 66. Pin 61 is inserted into socket 41 to fix slider 40 to support base 50. When slider 40 needs to be released, pin 61 is rotated again to realign rectangular block 62 with the gap between the outer periphery of plate 64 and pin 61. Rectangular block 62 drills out of the gap, and pin 61 returns to its initial position under the force of spring 66, no longer fixing slider 40. Slider 40 can move down along slide rail so that comparison groove gauge 20 corresponds to the keyway of the next batch of keyway height and width comparison ring 10. The operation is simple and efficient.

[0025] Limiting protrusions are provided at both ends of the slide rail. The limiting protrusions are used to limit the extreme position of the slider 40 along the slide rail, prevent the slider 40 from falling off the two ends of the slide rail during the sliding process, protect the structural integrity of the slider 40 and the slide rail, avoid damage to the device due to the slider 40 falling off, and ensure the service life and safety of the device.

[0026] The base 30 is also detachably connected to the limiting cylinder 70 by a snap fastener. The limiting cylinder 70 is adapted to the outer periphery of the keyway height and width comparison ring 10. The limiting cylinder 70 can be used to position and fix the keyway height and width comparison ring 10. This detachable structure makes it easy to put the keyway height and width comparison ring 10 to be tested into the limiting cylinder 70, and to take out the keyway height and width comparison ring 10 after testing from the limiting cylinder 70, thus improving the convenience of loading and unloading during batch testing.

[0027] The comparison groove gauge 20 is equipped with a scale. When performing batch testing, if the comparison groove gauge 20 cannot move completely down during the downward movement of the slider 40, the corresponding position information can be read through the scale on the comparison groove gauge 20, thereby determining which keyway height and width comparison ring 10 in the limit cylinder 70 has a keyway deviation or contour deformation problem.

[0028] Its specific working principle is as follows: First, remove the limiting cylinder 70 from the base 30, and then place a batch of keyway height and width comparison rings 10 to be tested into the limiting cylinder 70 in sequence, ensuring that the comparison grooves 11 of each keyway height and width comparison ring 10 are aligned and correspond to the detection faces of the subsequent comparison groove gauges 20; then, reinstall the limiting cylinder 70 containing the keyway height and width comparison rings 10 back onto the base 30 to complete the loading operation.

[0029] At this time, the slider 40 is in the highest locked state after moving up. The quick-connect assembly 60 needs to be unlocked first: hold the end of the pin 61 and rotate it so that the rectangular blocks 62 on both sides of the outer periphery of the pin 61 are aligned with the gap between the inner plate 64 of the mounting cylinder 67 and the outer periphery of the pin 61. After alignment, the rectangular blocks 62 are no longer blocked by the plate 64. The pin 61 rebounds away from the slider 40 under the elastic force of the spring 66. The end of the pin 61 is dislodged from the insertion hole 41 of the slider 40, and the slider 40 is unlocked. Then push the slider 40 to slide down along the slide rail in the support base 50. The slider 40 drives the comparison groove gauge 20 to move down synchronously until the detection surface of the comparison groove gauge 20 contacts the keyway of the keyway height and width comparison ring 10 in the limit cylinder 70.

[0030] Observe the fit between the detection surface of the comparison groove gauge 20 and the comparison groove 11 of the keyway height and width comparison ring 10: If the detection surface can fit the comparison groove 11 completely, it means that the width dimension of the comparison groove 11 of the keyway height and width comparison ring 10 is within the standard tolerance range and the contour is not deformed; if the comparison groove gauge 20 cannot move completely down during the downward movement of the slider 40, it means that there is a keyway height and width comparison ring 10 with a comparison groove 11 that is out of tolerance or with a deformed contour. At this time, the current position information can be read by the scale on the comparison groove gauge 20. According to the correspondence between the scale and the arrangement order of the keyway height and width comparison rings 10 in the limit cylinder 70, it is possible to quickly determine which keyway height and width comparison ring 10 is a defective part.

[0031] After a batch of keyway height and width comparison rings 10 are inspected, the slider 40 is pushed to slide upward along the slide rail to the highest position. At this time, the insertion hole 41 of the slider 40 is aligned with the axis of the pin 61 of the quick-connect assembly 60. Then, the pin 61 is pressed and pushed towards the slider 40, while the pin 61 is rotated so that the rectangular locking block 62 on the outer periphery of the pin 61 passes through the gap between the locking plate 64 and the outer periphery of the pin 61 and extends into the inner side of the locking plate 64. Then, the pin 61 is rotated in the opposite direction so that the rectangular locking block 62 contacts the blocking surface of the locking plate 64. Since the length of the rectangular locking block 62 is greater than the gap between the locking plate 64 and the outer periphery of the pin 61, the rectangular locking block 62 is locked by the locking plate 64 and cannot spring back. The end of the pin 61 is inserted into the insertion hole 41 of the slider 40, thereby locking the slider 40 in the highest position. After that, the limiting cylinder 70 is removed from the base 30, the inspected keyway height and width comparison rings 10 are taken out, the unqualified parts are sorted out, and the unloading operation is completed.

[0032] By repeating the above steps, multiple batches of keyway height and width comparison rings 10 can be continuously inspected until all parts to be inspected have been inspected.

[0033] This invention achieves rapid small-batch testing of the keyway height and width comparison ring 10 by setting a comparison groove gauge 20 adapted to the comparison groove 11 of the keyway height and width comparison ring 10, a sliding fit structure between the slider 40 and the support base 50, a locking and unlocking mechanism of the quick-connect assembly 60, and a detachable limiting cylinder 70, thereby improving the testing accuracy and efficiency.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid detection device for a keyway height-width comparison ring, characterized in that, The device includes a comparison groove fixture, the detection surface of which is adapted to the keyway profile of the keyway height-width comparison ring, and the width dimension of the comparison groove fixture corresponds to the standard width tolerance range of the keyway.

2. The rapid detection device for a keyway height-width comparison ring according to claim 1, characterized in that, It also includes a base for placing the keyway height-width comparison ring to be tested, a support base vertically fixed to the base, and a slider slidably connected to the support base. The comparison groove gauge is fixedly connected to the slider, and the bottom surface of the comparison groove gauge faces the base.

3. The rapid detection device for a keyway height-width comparison ring according to claim 2, characterized in that, The support base is provided with slide rails distributed along the height direction of the support base, and the slider is slidably connected to the slide rails.

4. The rapid detection device for a keyway height-width comparison ring according to claim 2, characterized in that, The support base is equipped with a quick-connect assembly, which is used to fix the position of the slider within the support base.

5. The rapid detection device for a keyway height-width comparison ring according to claim 4, characterized in that, The quick-connect assembly includes a pin and a mounting sleeve; The mounting cylinder is fixed inside the support base at one end away from the base, and an inner baffle, a retaining plate, and an outer baffle are sequentially spaced apart inside the mounting cylinder along the direction away from the slider; The pin passes through the inside of the mounting cylinder, and a spring is sleeved on its outer periphery. A rectangular locking block is welded to each of the radial sides of the outer periphery of the pin. The spring is positioned between the rectangular blocks on both sides and the inner baffle. The lengths of both rectangular blocks are greater than the gap between the card plate and the outer periphery of the pin.

6. The rapid detection device for a keyway height-width comparison ring according to claim 5, characterized in that, The slider has an insertion hole on the side away from the comparison slot gauge, and the size of the insertion hole is adapted to the pin.

7. The rapid detection device for a keyway height-width comparison ring according to claim 3, characterized in that, The slide rail is provided with limiting protrusions at both ends, which are used to limit the extreme positions of the slider along the slide rail.

8. The rapid detection device for a keyway height-width comparison ring according to claim 2, characterized in that, The base can also be detachably connected to a limiting cylinder, which is adapted to the outer periphery of the keyway height-width comparison ring.

9. The rapid detection device for a keyway height-width comparison ring according to claim 1, characterized in that, The comparison groove fixture is provided with scale lines, and the spacing between the scale lines is consistent with the thickness of the keyway height-width comparison ring.

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