A device for detecting symmetry of a spline connection disc end face tooth

Abstract

The utility model belongs to spline connection detection technical field relates to a device for detecting spline connection disc end surface tooth symmetry, include: work piece placing base, tensioning cover mandrel, tensioning cover, detection reference column, detection block, tensioning cover mandrel rotation connects work piece placing base, tensioning cover is covered and is established on the outer circumference of tensioning cover mandrel, and tensioning cover outer cover is equipped with spline connection disc, the boss of detection block is matched with spline connection disc end surface tooth groove, the top of detection reference column is equipped with detection reference groove, the utility model discloses through detection block and leads out the detection interface of spline connection disc end surface tooth, provides the contrast basis of detection device through detection reference column and blocks detection block, and the symmetry error of spline connection disc end surface tooth can be detected through the contrast of before and after detection value, therefore the utility model can effectively eliminate the clearance between spline mandrel and spline connection disc, and the accuracy of detection has been improved.

Description

Technical Field

[0001] This utility model belongs to the field of spline connection detection technology, specifically relating to a device for detecting the symmetry of the teeth on the end face of a spline connection disc. Background Technology

[0002] A spline connection is a common type of shaft-hub connection in mechanical engineering. It achieves torque transmission, guidance, or positioning by machining a series of mating teeth (key teeth) and grooves (keyways) on the contact surfaces of the shaft and hub. Compared to traditional simple key connections such as flat keys and semi-circular keys, spline connections offer higher load-bearing capacity, better alignment, and longer service life. In current mechanical transmission systems, spline connections are widely used due to their high efficiency and stability. Currently, the symmetry of the spline connection disc's end face teeth is mainly tested using the traditional mandrel fitting method. This method requires assembling the spline connection disc with a specially designed external spline mandrel and using a runout tester for detection. The specific steps include pressing pin-type plug gauges into the two sets of end face tooth grooves on the spline connection disc, recording the leveling values ​​using a lever dial indicator, rotating the spline connection disc 180°, leveling it again, and recording the values. The difference between the two values ​​is the symmetry error.

[0003] However, this method is cumbersome and inefficient. More importantly, the gap between the external spline of the spline mandrel and the internal spline of the spline connecting disc causes a significant deviation between the test results and the true values, affecting the accuracy of the test.

[0004] Therefore, a simple and accurate device or method is needed to solve this technical problem. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a device for detecting the symmetry of the teeth on the end face of a splined connecting disc, comprising: a workpiece placement base, a tensioning sleeve mandrel, a tensioning sleeve, a detection reference column, and a detection block; the workpiece placement base is cuboid in shape, the tensioning sleeve mandrel is rotatably connected to the upper surface of the workpiece placement base, the rotation axis of the tensioning sleeve mandrel is perpendicular to the upper surface of the workpiece placement base, the tensioning sleeve is sleeved on the outer circumference of the tensioning sleeve mandrel, and a splined connecting disc is sleeved on the tensioning sleeve;

[0006] The detection block is cuboid in shape, with a downward-protruding elongated boss at the bottom. The boss matches the end face tooth groove of the spline connecting disc. The matching surface of the boss and the end face tooth groove of the spline connecting disc is parallel to the detection surface of the detection block. The top corner of the detection reference column has a horizontally recessed detection reference groove. The detection reference groove is cuboid in shape, and the two right-angle adjacent recessed sidewalls of the detection reference groove are parallel to the two right-angle adjacent sidewalls of the workpiece placement base.

[0007] When testing the symmetry of the spline connecting disc end face teeth, the spline connecting disc tensioning sleeve is set outside the tensioning sleeve, and the detection block is embedded and engaged in the tooth grooves of the two end faces of the spline connecting disc located on the same straight line. One end of the detection block is stuck in the right-angle side wall of the detection reference groove. The symmetry error of the spline connecting disc end face teeth can be detected by moving a dial indicator along the length direction parallel to the workpiece placement base and recording the value on the detection surface of the detection block.

[0008] Preferably, the connection method of the tensioning sleeve mandrel rotatably connecting to the upper surface of the workpiece placement base includes: the upper surface of the workpiece placement base is provided with a bearing hole with a vertical rotating shaft, a bearing is embedded in the bearing hole, and the tensioning sleeve mandrel is embedded with the inner shell of the bearing.

[0009] Preferably, when the spline connecting disc tensioning sleeve is installed outside the tensioning sleeve, the inner pin of the tensioning sleeve has a pin-type plug gauge.

[0010] Preferably, the tensioning sleeve mandrel, tensioning sleeve, detection reference post, and detection block are provided in multiple sets of different models and sizes, and each set of tensioning sleeve mandrel, tensioning sleeve, detection reference post, and detection block corresponds to a splined connecting disc of a certain specification.

[0011] Preferably, the device for detecting the symmetry of the teeth on the end face of the spline connecting disc further includes a slider, which can slide back and forth along a direction parallel to the length of the workpiece placement base, and a dial indicator can be detachably connected to the slider.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model can eliminate spline gap: Through the tensioning sleeve structure, the gap between the spline mandrel and the spline connecting disc is effectively eliminated, improving the accuracy of detection.

[0014] 2. This utility model simplifies the testing process: by comparing with the standard indication, it simplifies the multiple leveling and calculation processes in traditional testing and improves testing efficiency.

[0015] 3. This utility model is easy to operate: the device has a compact structure and is easy to operate, which reduces the skill requirements for operators. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of a device for detecting the symmetry of the teeth on the end face of a spline connecting disc according to this utility model;

[0017] Fig. 2 This is a schematic diagram of the detection process of this utility model.

[0018] The components include: 1. workpiece placement base; 2. tensioning sleeve mandrel; 3. tensioning sleeve; 4. detection reference column; 5. detection block; 6. spline connecting plate; 7. detection reference groove; 8. bearing hole; 9. bearing; and 10. slider. Detailed Implementation

[0019] The relevant technologies of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] This embodiment of a device for detecting the symmetry of the end face teeth of a splined connecting disc includes: a workpiece placement base 1, a tensioning sleeve mandrel 2, a tensioning sleeve 3, a detection reference column 4, and a detection block 5; the workpiece placement base 1 is cuboid in shape, the tensioning sleeve mandrel 2 is rotatably connected to the upper surface of the workpiece placement base 1, the rotation axis of the tensioning sleeve mandrel 2 is perpendicular to the upper surface of the workpiece placement base 1, the tensioning sleeve 3 is sleeved on the outer circumference of the tensioning sleeve mandrel 2, and the splined connecting disc 6 is sleeved on the tensioning sleeve 3; during symmetry detection, the tensioning sleeve mandrel 2 and the tensioning sleeve 3 are used to install and position the splined connecting disc 6 on the workpiece placement base 1 along the vertical axis direction;

[0021] The detection block 5 is rectangular in shape, and the lower part of the detection block 5 is provided with a downward protruding strip-shaped boss. The boss of the detection block 5 matches the end face tooth groove of the spline connecting plate 6. The matching surface of the boss of the detection block 5 and the end face tooth groove of the spline connecting plate 6 is parallel to the detection surface of the detection block 5. During symmetry detection, the detection block 5 is used to provide the detection interface of the end face tooth of the spline connecting plate for the detection device to perform detection comparison.

[0022] The top corner of the detection reference column 4 is provided with a detection reference groove 7 that is recessed in the horizontal direction. The detection reference groove 7 is in the shape of a cuboid. The two right-angle adjacent concave sidewalls of the detection reference groove 7 are parallel to the two right-angle adjacent sidewalls of the workpiece placement base 1. During symmetry detection, the detection reference groove 7 is used to locate the position of one end of the spline connecting plate end face tooth and provide a comparison basis for the detection device.

[0023] When the symmetry of the end face teeth of the spline connecting disc is detected, the spline connecting disc 6 is tensioned outside the tensioning sleeve 3, and the detection block 5 is embedded and engaged in the tooth grooves of the two end faces of the spline connecting disc 6 located on the same straight line. One end of the detection block 5 is stuck in the right-angle side wall of the detection reference groove 7. The symmetry error of the end face teeth of the spline connecting disc 6 can be detected by moving a dial indicator along the length direction parallel to the workpiece placement base 1 and recording the value on the detection surface of the detection block 5.

[0024] Furthermore, the connection method of the tensioning sleeve mandrel 2 to the upper surface of the workpiece placement base 1 includes: the upper surface of the workpiece placement base 1 is provided with a bearing hole 8 with a vertical rotating shaft, a bearing 9 is embedded in the bearing hole 8, and the tensioning sleeve mandrel 2 is embedded with the inner shell of the bearing 9. The bearing connection method makes symmetry detection more convenient. After the tooth grooves of both ends of a straight line are detected, the tooth grooves of the two ends of the next straight line can be detected by rotating the spline connecting plate 6, thereby improving the detection efficiency.

[0025] Furthermore, when the spline connecting disc 6 is tensioned outside the tensioning sleeve 3, the tensioning sleeve 3 has a pin-type plug gauge inserted inside.

[0026] Furthermore, the tensioning sleeve mandrel 2, tensioning sleeve 3, detection reference post 4, and detection block 5 are provided in multiple sets of different models and sizes. Each set of tensioning sleeve mandrel 2, tensioning sleeve 3, detection reference post 4, and detection block 5 corresponds to a certain specification and model of splined connecting disc 6. By configuring multiple sets of tensioning sleeve mandrel 2, tensioning sleeve 3, detection reference post 4, and detection block 5 that match different specifications and models, this utility model can be used to detect a variety of different models of splined connecting disc 6, thus improving the applicability of this utility model.

[0027] Furthermore, the device for detecting the symmetry of the end face teeth of the spline connecting disc also includes a slider 10. The slider 10 can slide back and forth along a direction parallel to the length of the workpiece placement base 1. A dial indicator can be detachably connected to the slider 10. When the slider 10 is used with the workpiece placement base 1, the workpiece placement base 1 can be fixed on the worktable, while the slider 10 slides on the worktable. The dial indicator is installed on the slider 10. This device is suitable for use in large-scale testing and can effectively improve the speed and efficiency of detecting the symmetry of the end face teeth of the spline connecting disc.

[0028] Example

[0029] like Figs. 1-2 As shown, the device in this embodiment mainly consists of a workpiece placement base 1, bearing hole 8, bearing 9, tensioning sleeve mandrel 2, tensioning sleeve 3, pin plug gauge, detection block 5, dial indicator, guide rail, slider 10, and detection reference column 4. The specific scheme is as follows:

[0030] 1. Place the workpiece base 1 on the platform. The base has bearing holes 8. After installing the bearing 9, assemble it with the tensioning sleeve mandrel 2.

[0031] 2. During testing, the tensioning sleeve 3 and the pin-type plug gauge are installed together on the inner spline of the spline connecting plate 6. At this time, the tensioning sleeve 3 is in a loose state.

[0032] 3. Place the spline connecting disc 6, which contains the tensioning sleeve 3 and the pin plug gauge, on the tensioning sleeve spindle 2. Utilize the tensioning sleeve principle to increase the tightness of the pin plug gauge and eliminate spline clearance.

[0033] 4. Press the detection block 5 into the tooth grooves of the two sets of end faces on a straight line of the spline connecting plate 6.

[0034] 5. Install slider 10 on a guide rail parallel to the base, and install a dial indicator on slider 10. The pointer of the dial indicator is pressed on the detection surface of detection block 5.

[0035] 6. Use a dial indicator to detect and record the values ​​on detection block 5.

[0036] 7. Push the slider 10 so that the dial indicator pointer presses on the detection reference column 4 next to the base and record the reference value.

[0037] 8. Compare the dial indicator reading on test block 5 with the dial indicator reading on test reference column 4. The difference between the two is the symmetry error of the end face teeth of spline connecting plate 6.

[0038] The key point of this embodiment is to use a tensioning sleeve structure to eliminate spline gaps and to directly obtain symmetry detection results by comparing with standard indications, thereby simplifying the detection process and improving detection accuracy.

[0039] In summary, this invention provides a detection interface for the spline connecting disc end face teeth by introducing a detection block, and uses a detection reference post to block the detection block to provide a comparison basis for the detection device. By comparing the detection values ​​before and after detection, the symmetry error of the spline connecting disc end face teeth can be detected. Therefore, this invention can effectively eliminate the gap between the spline mandrel and the spline connecting disc, and improve the accuracy of detection.

[0040] It should be emphasized that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A device for detecting the symmetry of the teeth on the end face of a spline connector, characterized in that, include: Workpiece placement base (1), tensioning sleeve mandrel (2), tensioning sleeve (3), detection reference column (4), detection block (5); The workpiece placement base (1) is rectangular, the tensioning sleeve mandrel (2) is rotatably connected to the upper surface of the workpiece placement base (1), the rotation axis of the tensioning sleeve mandrel (2) is perpendicular to the upper surface of the workpiece placement base (1), the tensioning sleeve (3) is sleeved on the outer circumference of the tensioning sleeve mandrel (2), and a spline connecting disc (6) is sleeved on the tensioning sleeve (3); The detection block (5) is rectangular in shape. The lower part of the detection block (5) is provided with a long strip protruding downward. The protrusion of the detection block (5) matches the end face tooth groove of the spline connecting plate (6). The matching surface of the protrusion of the detection block (5) and the end face tooth groove of the spline connecting plate (6) is parallel to the detection surface of the detection block (5). The top corner of the detection reference column (4) is provided with a detection reference groove (7) that is recessed in the horizontal direction. The detection reference groove (7) is in the shape of a cuboid. The two right-angle adjacent concave sidewalls of the detection reference groove (7) are parallel to the two right-angle adjacent sidewalls of the workpiece placement base (1). When the end face teeth of the spline connecting disc are tested for symmetry, the spline connecting disc (6) is tensioned and sleeved outside the tensioning sleeve (3), and the detection block (5) is embedded and engaged in the tooth grooves of the two end faces of the spline connecting disc (6) located on the same straight line. One end detection block (5) is stuck in the right-angle side wall of the detection reference groove (7). The symmetry error of the end face teeth of the spline connecting disc (6) can be detected by moving the dial indicator along the length direction parallel to the workpiece placement base (1) and detecting and recording the value on the detection surface of the detection block (5).

2. The device for detecting the symmetry of the teeth on the end face of a spline connector according to claim 1, characterized in that, The connection method of the tensioning sleeve mandrel (2) rotatably connecting to the upper surface of the workpiece placement base (1) includes: the upper surface of the workpiece placement base (1) is provided with a bearing hole (8) with a vertical rotating shaft, a bearing (9) is embedded in the bearing hole (8), and the tensioning sleeve mandrel (2) is embedded in the inner shell of the bearing (9).

3. The device for detecting the symmetry of the teeth on the end face of a spline connecting disc according to claim 1, characterized in that, When the spline connecting disc (6) is tensioned outside the tensioning sleeve (3), the tensioning sleeve (3) has a pin-type plug gauge inserted inside.

4. The device for detecting the symmetry of the teeth on the end face of a spline connecting disc according to claim 1, characterized in that, Multiple sets of tensioning sleeve mandrel (2), tensioning sleeve (3), detection reference column (4), and detection block (5) are provided. Each set of tensioning sleeve mandrel (2), tensioning sleeve (3), detection reference column (4), and detection block (5) corresponds to a splined connecting disc (6) of a certain specification and model.

5. The device for detecting the symmetry of the teeth on the end face of a spline connecting disc according to claim 1, characterized in that, The device for detecting the symmetry of the teeth on the end face of the spline connecting disc also includes a slider (10), which can slide back and forth along the length of the workpiece placement base (1), and a dial indicator can be detachably connected to the slider (10).

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