Gear detection device and detection method thereof

Abstract

The application discloses a gear detection device and a detection method thereof, and relates to the technical field of gear production. The gear detection device comprises a base, a support frame, a detection assembly, a driving assembly, a fixing assembly and a controller. The support frame is fixed to one end of the base. The detection assembly is arranged on the support frame and directly above the fixing assembly. The detection assembly comprises an annular frame and a lifting plate. The driving assembly comprises a height adjusting unit, a rotation adjusting unit and a radial adjusting unit. The height adjusting unit is arranged between the lifting plate and the support frame. The fixing assembly is arranged on the base and used for fixing a gear to be detected. The controller is electrically connected with the driving assembly and the detection assembly. Through the arrangement of the detection assembly, the driving assembly, the fixing assembly and the controller, the gear face detection, the gear pitch detection and the end face detection are integrated into one set of detection device under the cooperation of various assemblies, so that the detection process is simplified, and the detection efficiency and precision are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gear production, and particularly relates to a gear detection device and a detection method thereof. BACKGROUND

[0002] As a core component in mechanical transmission systems, the machining precision of gears directly affects the running efficiency, noise level and service life of mechanical equipment. Therefore, the detection technology of gears has always been an important research direction in the field of mechanical manufacturing. Traditional gear detection methods mainly rely on optical projectors, micrometers, pitch gauges and other instruments. Although these methods can meet the detection needs to some extent, they still have the following problems:

[0003] Low detection efficiency: traditional detection methods require manual operation, the detection process is tedious, time-consuming and difficult to meet the needs of mass production.

[0004] Limited precision: the precision of optical projectors and micrometers and other instruments is greatly affected by human factors, making it difficult to achieve high-precision detection.

[0005] Poor applicability: traditional detection instruments have certain limitations on the size and shape of gears, making it difficult to adapt to the detection needs of gears of different specifications.

[0006] Poor integration: it is difficult to use a set of structure to simultaneously detect the tooth surface, pitch and end face. SUMMARY

[0007] The purpose of the present application can be achieved by the following technical solutions:

[0008] A gear detection device, comprising a base, a support frame, a detection assembly, a driving assembly, a fixing assembly and a controller; wherein:

[0009] The support frame is fixed to one end of the base;

[0010] The detection assembly is arranged on the support frame and located directly above the fixing assembly; the detection assembly comprises a ring frame and a lifting plate; the ring frame is rotatably installed on the bottom surface of the lifting plate; two groups of swing rods that can rotate along the center of the ring frame are arranged in the ring frame; a sliding groove is pre-set on the bottom surface of the swing rod, and a sliding rod is slidably installed in the sliding groove; a tooth surface detection unit and a pitch detection unit are arranged on the swing rod; an end face detection unit is arranged on the ring frame; wherein the distance between the two swing rods is the same as the standard pitch of the gear to be detected;

[0011] The driving assembly comprises a height adjustment unit, a rotation adjustment unit and a radial adjustment unit; the height adjustment unit is arranged between the lifting plate and the support frame; the rotation adjustment unit is used to drive the ring frame to rotate on the lifting plate; the radial adjustment unit is used to adjust the position of the sliding rod in the sliding groove;

[0012] The fixing assembly is arranged on the base and used for fixing the gear to be detected;

[0013] The controller is electrically connected with the driving assembly and the detecting assembly.

[0014] In an embodiment of the present application, the support frame comprises a vertical column and a horizontal beam; the vertical column is fixed vertically on the base, and the horizontal beam is perpendicular to the top end of the vertical column; the lifting plate is installed at one end of the horizontal beam away from the vertical column through the height adjusting assembly.

[0015] In an embodiment of the present application, the height adjusting unit and the radial adjusting unit are hydraulic cylinders or hydraulic push rods.

[0016] In an embodiment of the present application, the tooth surface detecting unit comprises two tooth-shaped templates and an image collector.

[0017] The two tooth-shaped templates are matched with the tooth surface of the gear to be detected on two sides, and the two sides are both provided with coated cotton; the two tooth-shaped templates are respectively detachably installed on two swing rods; the coated cotton of one of the tooth-shaped templates is soaked with a dyeing agent, and the coated cotton of the other tooth-shaped template is soaked with a cleaning agent.

[0018] The image collector is installed on the tooth-shaped template where the cleaning agent is located, and is used for collecting the image of the tooth surface.

[0019] In an embodiment of the present application, the tooth pitch detecting unit comprises a distance sensor; the distance sensor is installed on the tooth-shaped template where the image collector is located, and is used for measuring the distance from the tooth surface.

[0020] In an embodiment of the present application, the end surface detecting unit comprises an end surface template; the end surface template is horizontally arranged, and the upper end surface is installed at the bottom of the annular frame, and the lower end surface is attached with a pigment; an image collector two is arranged on one side of the end surface template; the image collector two is used for collecting the end surface image of the gear to be detected.

[0021] In an embodiment of the present application, the controller is used for:

[0022] I. controlling the height adjusting unit to work and drive the lifting plate to descend by a preset height one;

[0023] controlling the rotating adjusting unit to work and drive the annular frame to rotate by a preset number of turns; then controlling the height adjusting unit to reset, and controlling the image collector two to collect the end surface image one;

[0024] Control the height adjusting unit to work, drive the lifting plate to descend a preset height two; control the rotating adjusting unit to work, drive the annular frame to rotate a preset number of turns; control the height adjusting unit to reset, control the image collector two to collect the end face image two; wherein, the preset height one is less than the preset height two, and the preset height two is the distance between the end face sample plate and the end face of the gear to be detected;

[0025] Determine whether there is a part with pigment color in the end face image one and / or whether there is a part without pigment in the end face image two, if there is, it is determined that the gear end face has defects, and the end face detection is completed.

[0026] II, control the radial adjusting unit to work, so that the two tooth-shaped sample plates enter the tooth groove of the gear to be detected; control the rotating adjusting unit to work, drive the annular frame to rotate in one direction by a preset angle, so that the dyeing agent on the coated cotton is attached to the tooth surface; then control the rotating adjusting unit to reset and then rotate in the reverse direction by a preset angle to make the dyeing agent on the coated cotton attached to the other tooth surface of the tooth groove; finally, control the rotating adjusting unit to reset first, and then control the radial adjusting unit to reset;

[0027] Control the rotating adjusting unit to work, drive the annular frame to rotate by a tooth groove angle, then control the radial adjusting unit to work, so that the two tooth-shaped sample plates enter the next tooth groove; control the image collector one to collect the images of the two tooth surfaces after dyeing respectively, and compare the images with the preset standard image, if the similarity is lower than the preset value, it is determined that the corresponding tooth surface has defects;

[0028] Wherein, when the rotating adjusting unit is controlled to work in the new tooth groove for tooth surface dyeing, the coated cotton coated with cleaning agent can clean and decompose the color on the dyed tooth surface, and the image collector one is controlled to collect the tooth surface image again before the tooth-shaped sample plate leaves the tooth groove, and it is determined whether the image has a color gathering place, if yes, it is determined that the tooth surface has a risk of crack defects, and the tooth surface detection is completed.

[0029] III, in the tooth surface detection process, when the tooth-shaped sample plate initially enters the tooth groove, control the distance sensor to detect the distance between the tooth surface of the tooth groove; compare the detected distances in each tooth groove to form a data set, if there is a difference value in the data set that exceeds a preset difference value, it is determined that the tooth pitch has uneven defects, and the tooth pitch detection is completed.

[0030] In one scheme of the present application: the rotating adjusting unit comprises a stepping motor; the stepping motor is installed on the lifting plate, and the output shaft drives and connects the annular frame.

[0031] In one scheme of the present application: the detection assembly further comprises a addendum circle detection unit; the addendum circle detection unit comprises an addendum sample plate, the addendum sample plate is installed on one end of the tooth-shaped sample plate close to the center of the annular frame, and the addendum sample plate is attached with pigment;

[0032] The controller is further configured to:

[0033] IV. control the radial adjustment unit to move the two tooth-shaped templates by a preset distance one;

[0034] control the rotation adjustment unit to drive the annular frame to rotate by a preset number of turns; then control the radial adjustment unit to reset, and observe whether color exists on the addendum circle of the gear;

[0035] control the radial adjustment unit to move the two tooth-shaped templates by a preset distance two; then control the rotation adjustment unit to drive the annular frame to rotate by a preset number of turns; then control the radial adjustment unit to reset, and observe whether color exists on the addendum circle of the gear; wherein, the preset distance one is less than the preset distance two, and the preset distance two is the distance between the addendum circle template and the addendum circle of the gear to be detected;

[0036] if color exists on the addendum circle when the radial adjustment unit is reset for the first time and / or if color does not exist on the addendum circle when the radial adjustment unit is reset for the second time, if color exists, it is determined that the addendum circle of the gear has defects, and the detection of the addendum circle is completed.

[0037] The application further discloses a gear detection method, which comprises the following steps:

[0038] placing the gear to be detected on the base;

[0039] fixing the gear to be detected by using the fixing assembly;

[0040] The controller controls the height adjustment unit, the rotation adjustment unit and the radial adjustment unit in the driving assembly, and cooperates with the tooth surface detection unit, the pitch detection unit and the end surface detection unit in the detection assembly to complete the tooth surface detection, the pitch detection and the end surface detection of the gear.

[0041] The application has the following beneficial effects:

[0042] In use, the gear to be detected is placed on the base, the gear to be detected is fixed by using the fixing assembly, and the controller controls the height adjustment unit, the rotation adjustment unit and the radial adjustment unit in the driving assembly, and cooperates with the tooth surface detection unit, the pitch detection unit and the end surface detection unit in the detection assembly to complete the tooth surface detection, the pitch detection and the end surface detection of the gear. Through the cooperation of the detection assembly, the driving assembly, the fixing assembly and the controller, the tooth surface detection, the pitch detection and the end surface detection are integrated into a detection device, the detection process is simplified, and the detection efficiency and accuracy are improved.

[0043] Additional aspects and advantages of the application will be better understood from the following description with reference to the drawings in which: Attached Figure Description

[0044] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0045] Figure 1 This is a schematic diagram of the gear detection device of the present invention when detecting a gear;

[0046] Figure 2 yes Figure 1 Another perspective attempt;

[0047] Figure 3 This is a schematic diagram of the gear detection device of the present invention;

[0048] Figure 4 yes Figure 3 Enlarged view of the structure at point A in the diagram;

[0049] Figure 5 This is a schematic diagram of the end face template and the ring frame in this invention;

[0050] Figure 6 This is a schematic diagram of the structure of the annular frame and the lifting plate in this invention;

[0051] Figure 7 This is a schematic diagram of the swing rod and slide rod in this invention.

[0052] In the diagram: 1. Base; 101. Auxiliary groove; 102. Adjustment groove; 2. Support frame; 3. Height adjustment unit; 4. Lifting plate; 401. Rotating groove; 5. Annular frame; 501. Annular groove; 6. Connecting rod; 7. Connecting frame; 8. Toothed template; 9. Pressure block; 10. Receiving block; 11. Connecting rod; 12. Adjustment block; 13. Clamping plate; 14. Return spring; 15. End face template; 16. Swing rod; 1601. Slide groove; 17. Slide rod; 18. Stepper motor. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] In the description of the present application, it should be understood that the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0055] In the description of the present application, one or more is meant to be one or more, more than two is meant to be more than two, greater than, less than, more than, etc. are understood to not include the number, above, below, within, etc. are understood to include the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0056] Please refer to Figures 1-7 The present application is a gear detection device, mainly used for detecting the tooth surface, pitch and end face of a spur gear. Specifically comprising a base 1, a support frame 2, a detection assembly, a driving assembly, a fixing assembly and a controller; wherein:

[0057] The support frame 2 is fixed to one end of the base 1;

[0058] The detection assembly is arranged on the support frame 2 and directly above the fixing assembly; the detection assembly comprises an annular frame 5 and a lifting plate 4; the annular frame 5 is rotatably installed on the bottom surface of the lifting plate 4; two groups of swing rods 16 that can rotate along the center of the annular frame 5 are arranged in the annular frame 5; the bottom surface of the swing rod 16 is provided with a sliding groove 1601, and a sliding rod 17 is slidably installed in the sliding groove 1601; the swing rod 16 is provided with a tooth surface detection unit and a pitch detection unit; the annular frame 5 is provided with an end face detection unit; wherein the distance between the two swing rods 16 is the same as the standard pitch of the gear to be detected;

[0059] The driving assembly comprises a height adjusting unit 3, a rotation adjusting unit and a radial adjusting unit; the height adjusting unit 3 is arranged between the lifting plate 4 and the support frame 2; the rotation adjusting unit is used to drive the annular frame 5 to rotate on the lifting plate 4; the radial adjusting unit is used to adjust the position of the sliding rod 17 in the sliding groove 1601;

[0060] The fixing assembly is arranged on the base 1 and is used to fix the gear to be detected;

[0061] The controller is electrically connected to the driving assembly and the detection assembly.

[0062] It should be noted that:

[0063] The swing rod 16 is rotatably connected at one end in the annular frame 5 and is slidably arranged in a preset annular groove 501 in the annular frame 5. In order to facilitate the determination of the angle between the two swing rods 16, a scale can be arranged on the circumference of the annular frame 5. Further, in order to determine that the swing rod 16 will not move after being adjusted, a fixing member, for example, a bolt, should be arranged. A certain friction force can also be arranged between the annular groove 501 and the swing rod 16, which can guarantee that the swing rod 16 will not move easily.

[0064] The gear detection device of the present application is used to place the gear to be detected on the base 1, fix the gear to be detected by the fixing assembly, control the height adjusting unit 3, the rotation adjusting unit and the radial adjusting unit in the driving assembly, and cooperate with the tooth surface detection unit, the tooth pitch detection unit and the end surface detection unit in the detection assembly to complete the tooth surface detection, tooth pitch detection and end surface detection of the gear. By arranging the detection assembly, the driving assembly, the fixing assembly and the controller, the tooth surface detection, tooth pitch detection and end surface detection are integrated into a set of detection device under the cooperation of various assemblies, which simplifies the detection process and improves the detection efficiency and accuracy.

[0065] Please combine Figures 1-7 The various components of the present application will be described in detail.

[0066] Firstly, the base 1 is a rectangular platform made of high-strength steel, and the bottom is provided with a non-slip pad for stabilizing the device. The bottom plate is a rectangular steel plate with a thickness of 10 mm and the surface is treated with anti-rust treatment. The non-slip pad is made of rubber material and is pasted on the bottom of the bottom plate to increase the friction. The adjusting feet are adjustable bolts installed on the four corners of the bottom plate for adjusting the levelness of the base 1.

[0067] Secondly, the support frame 2 includes a stand and a cross beam. The stand is fixed vertically on the base 1, and the cross beam is perpendicular to the top end of the stand. The lifting plate 4 is installed at the end of the cross beam away from the stand through the height adjusting assembly.

[0068] Furthermore, the tooth surface detection unit includes two tooth-shaped templates 8 and an image collector I.

[0069] The two tooth-shaped templates 8; the tooth-shaped templates 8 are matched with the tooth surface of the gear to be detected on both sides, and both sides are installed with coated cotton; the two tooth-shaped templates 8 are respectively detachably installed on the two swing rods 16; the coated cotton of one of the tooth-shaped templates 8 is soaked with a dyeing agent, and the coated cotton of the other tooth-shaped template 8 is soaked with a cleaning agent.

[0070] The image collector I is installed on the tooth-shaped template 8 where the cleaning agent is located, and is used for collecting the image of the tooth surface.

[0071] It should be noted that:

[0072] The detachable connection mode between the tooth-shaped template 8 and the swing rod 16 is not limited, for example, buckles, bolts, adhesives and the like can be used, as long as detachable connection can be achieved, and details are not described herein.

[0073] The dyeing agent and the cleaning agent used in the application are used in a matched manner; the dyeing agent is mainly used for dyeing the tooth surface to enlarge defects on the tooth surface, such as recesses or protrusions, so that the subsequent image comparison result is more obvious through the adhesion of the dyeing agent; the cleaning agent is used for eliminating the color of the dyeing agent to restore the normal tooth surface. When the tooth surface has a crack, the dyeing agent will enter the crack, and at this time, the cleaning agent cannot decompose the dyeing agent in the crack, so whether the crack exists can be judged when the image is collected.

[0074] When the tooth surface is detected, the dyeing agent is attached to the tooth surface through the cotton coating, and then the tooth surface image is collected. By comparing the collected image with the standard image, color difference analysis and similarity analysis can be used to judge the tooth surface condition; for example, if there is a recess, there may be a place without color on the image, if there is a protrusion, there will be a significant difference between the image and the standard image, and if the tooth surface is not flat, there will be a significant difference between the image and the standard image. By attaching the cleaning agent to the tooth surface through the cotton coating, the color can be decomposed, and whether the tooth surface has a crack can be judged on the image.

[0075] In addition, the tooth pitch detection unit includes a distance sensor; the distance sensor is installed on the tooth-shaped template 8 where the image collector is located, and is used to measure the distance from the tooth surface.

[0076] Secondly, please combine Figures 5-6 The end face detection unit includes an end face template 15; the end face template 15 is horizontally arranged, the upper end face is installed at the bottom of the annular frame 5, and the lower end face is attached with a pigment; the image collector two is arranged on one side of the end face template 15; the image collector two is used to collect the end face image of the gear to be detected.

[0077] It should be noted that the end face template 15 in the end face detection unit cannot interfere with the swing rod 16, and an L-shaped swing rod 16 can be used to avoid interference in specific operation.

[0078] As the core structure in the application, the controller is used to:

[0079] I. Control the height adjusting unit 3 to work, drive the lifting plate 4 to descend by a preset height;

[0080] Control the rotation adjusting unit to work, drive the annular frame 5 to rotate by a preset number of turns; then control the height adjusting unit 3 to reset, and control the image collector two to collect the end face image one;

[0081] The height adjusting unit 3 is controlled to work, driving the lifting plate 4 to descend by a preset height two; the rotating adjusting unit is controlled to work, driving the annular frame 5 to rotate by a preset number of turns; the height adjusting unit 3 is controlled to reset, and the image collector two is controlled to collect the end face image two; wherein, the preset height one is less than the preset height two, and the preset height two is the distance between the end face sample 15 and the end face of the gear to be detected.

[0082] It is judged whether there is a part with pigment color in the end face image one and / or a part without pigment in the end face image two, and if there is, it is determined that the gear end face has defects, and the end face detection is completed.

[0083] It should be noted that the preset number of turns can be one turn, two turns, etc., without special requirements; the difference between the preset height one and the preset height two is set according to the allowable error of the end face of the gear to be detected, for example, the flatness error of the end face of the gear to be detected can be 0.1 cm, and the difference between the preset height one and the preset height two is 0.1 cm.

[0084] II, the radial adjusting unit is controlled to work, so that the two tooth-shaped samples 8 enter the tooth groove of the gear to be detected; the rotating adjusting unit is controlled to work, driving the annular frame 5 to rotate in one direction by a preset angle, so that the dyeing agent on the coated cotton adheres to the tooth surface; then the rotating adjusting unit is controlled to reset and then rotate in the opposite direction by a preset angle to make the dyeing agent on the coated cotton adhere to the other tooth surface of the tooth groove; finally, the rotating adjusting unit is controlled to reset first, and then the radial adjusting unit is controlled to reset.

[0085] The rotating adjusting unit is controlled to work, driving the annular frame 5 to rotate by a tooth groove angle, then the radial adjusting unit is controlled to work, so that the two tooth-shaped samples 8 enter the next tooth groove; the image collector one is controlled to collect the images of the two tooth surfaces after dyeing respectively, and the images are compared with the preset standard images, and if the similarity is lower than the preset value, it is determined that the corresponding tooth surface has defects.

[0086] When the rotating adjusting unit is controlled to work in the new tooth groove for tooth surface dyeing, the coated cotton with cleaning agent will clean and decompose the color on the dyed tooth surface, and the image collector one is controlled to collect the tooth surface image again before the tooth-shaped sample 8 leaves the tooth groove, and it is judged whether the image has color accumulation, and if so, it is judged that the tooth surface has the risk of crack defects, and the tooth surface detection is completed.

[0087] It should be noted that the preset angle is determined according to the gear to be detected and the rack sample, which satisfies the attachment of the coated cotton to the tooth surface.

[0088] III. In the process of tooth surface detection, when the tooth profile template 8 first enters the tooth groove, the distance between the tooth surface of the tooth groove and the distance sensor is detected; the data set is formed by comparing the detected distances in each tooth groove, and if there is a difference in the data set that exceeds a preset difference, it is determined that the tooth pitch is uneven, and the tooth pitch detection is completed.

[0089] It should be noted that the preset difference is determined according to the empirical value.

[0090] Further, in order to avoid collision between the rack template and the base 1, please refer to Figure 5 An auxiliary groove 101 is formed on the base 1 to avoid interference between the rack template and the base 1. At the same time, the auxiliary groove 101 can also collect the dyeing agent and the cleaning agent.

[0091] Of course, in some embodiments of the present application, the detection assembly can also include a addendum circle detection unit; the addendum circle detection unit includes an addendum circle template, the addendum circle template is installed at one end of the tooth profile template 8 close to the center of the annular frame 5, and the addendum circle template is attached with a pigment;

[0092] The controller is also used for:

[0093] IV. Control the radial adjustment unit to work, so that the two tooth profile templates 8 move a preset distance one;

[0094] Control the rotation adjustment unit to work, drive the annular frame 5 to rotate a preset number of turns; then control the radial adjustment unit to reset, and observe whether there is color on the addendum circle of the gear;

[0095] Control the radial adjustment unit to work, so that the two tooth profile templates 8 move a preset distance two; then control the rotation adjustment unit to work, drive the annular frame 5 to rotate a preset number of turns; then control the radial adjustment unit to reset, and observe whether there is color on the addendum circle of the gear; wherein; the preset distance one is less than the preset distance two, and the preset distance two is the distance between the addendum circle template and the addendum circle of the gear to be detected;

[0096] If there is color on the addendum circle when the radial adjustment unit is reset for the first time and / or there is not all color on the addendum circle when the radial adjustment unit is reset for the second time, if there is, it is determined that the addendum circle of the gear has defects, and the addendum circle detection is completed,

[0097] It should be noted that the detection of the addendum circle is similar to the end face detection. For example, the setting of the preset distance one and the preset distance two is also similar to the above.

[0098] The height adjustment unit 3 and the radial adjustment unit in the present application are hydraulic cylinders or hydraulic push rods, which can realize adjustment. Please refer to Figures 1-2 The height adjustment unit 3 is located between the cross beam and the lifting plate 4. Please refer to Figure 7The radial adjusting unit is located in the sliding groove 1601 of the swing rod 16 and is connected with the slide rod 17.

[0099] Please combine Figures 1-6 The rotating adjusting unit comprises a stepping motor 18. The stepping motor 18 is installed on the lifting plate 4 and the output shaft is drivingly connected with the annular frame 5. Specifically, a cross-shaped connecting frame 7 is installed on the upper end of the annular frame 5 and the output shaft of the stepping motor 18 is drivingly connected with the connecting frame 7. In consideration of stability, connecting rods 6 can also be installed on the four corners of the connecting frame 7. The upper ends of the connecting rods 6 are slidingly arranged in the preset rotating grooves 401 on the bottom surface of the lifting plate 4.

[0100] Please combine Figures 1-4 The fixing assembly of the present application comprises a pressing block 9 and a receiving block 10. The pressing block 9 is fixedly installed on the bottom of the end face template 15. The receiving block 10 is located directly below the pressing block 9 and is installed on the base 1 through the reset spring 14. The side wall of the receiving block 10 is hingedly connected with a plurality of connecting rods 11. The other ends of the connecting rods 11 are hingedly connected with adjusting blocks 12. The adjusting blocks 12 are slidingly installed in the preset adjusting grooves 102 on the base 1. The top of each adjusting block 12 is installed with a clamping plate 13 for clamping the spur gear. In use, the shaft hole of the spur gear is sleeved on the plurality of clamping plates 13. When the height adjusting assembly drives the lifting plate 4 and the end face template 15 to descend, the pressing block 9 presses the receiving block 10, thereby driving the adjusting blocks 12 to move in the adjusting grooves 102, so that the clamping plates 13 expand outward, thereby achieving the central fixing of the spur gear shaft hole.

[0101] In one embodiment of the present application, a gear detection method is also disclosed, which comprises the following steps:

[0102] Placing the gear to be detected on the base 1;

[0103] Fixing the gear to be detected by the fixing assembly;

[0104] The controller controls the height adjusting unit 3, the rotating adjusting unit and the radial adjusting unit in the driving assembly, and controls the tooth surface detection unit, the tooth pitch detection unit and the end face detection unit in the detection assembly, so as to complete the tooth surface detection, the tooth pitch detection and the end face detection of the gear.

[0105] The detection method has the same beneficial effects as the above-mentioned detection device and will not be described here again.

[0106] The above has described one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application and cannot be considered as limiting the implementation range of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the scope of the claims of the present application.

Claims

1. A gear detection device, comprising a base (1), characterized in that, It also includes a support frame (2), a detection component, a drive component, a fixing component, and a controller; wherein: The support frame (2) is fixed to one end of the base (1); The detection component is mounted on the support frame (2) and located directly above the fixed component; the detection component includes an annular frame (5) and a lifting plate (4); the annular frame (5) is rotatably mounted on the bottom surface of the lifting plate (4); two sets of swing rods (16) that can rotate around the center of the annular frame (5) are provided inside the annular frame (5); a groove (1601) is pre-set on the bottom surface of the swing rod (16), and a slide rod (17) is slidably installed in the groove (1601); a tooth surface detection unit and a tooth pitch detection unit are provided on the swing rod (16); an end face detection unit is provided on the annular frame (5); wherein, the distance between the two swing rods (16) is the same as the standard tooth pitch of the gear to be detected; The drive assembly includes a height adjustment unit (3), a rotation adjustment unit, and a radial adjustment unit; the height adjustment unit (3) is disposed between the lifting plate (4) and the support frame (2); the rotation adjustment unit is used to drive the annular frame (5) to rotate on the lifting plate (4); the radial adjustment unit is used to adjust the position of the slide rod (17) in the slide groove (1601); The fixing component is disposed on the base (1) and is used to fix the gear to be tested; The controller is electrically connected to the drive assembly and the detection assembly; The tooth surface detection unit includes: Two tooth-shaped templates (8); the two sides of the tooth-shaped templates (8) match the tooth profile of the gear to be tested, and both sides are fitted with coating cotton; the two tooth-shaped templates (8) are detachably mounted on the two swing rods (16); the coating cotton of one tooth-shaped template (8) is impregnated with dye, and the coating cotton of the other tooth-shaped template (8) is impregnated with cleaning agent; and Image acquisition device 1 is installed on the tooth-shaped template (8) where the cleaning agent is located, and is used to acquire images of the tooth surface; The tooth pitch detection unit includes a distance sensor; the distance sensor is installed on the tooth template (8) where the image acquisition unit is located, and is used to measure the distance between the sensor and the tooth surface; The end face detection unit includes an end face template (15); the end face template (15) is horizontally arranged, and the upper end face is installed at the bottom of the annular frame (5), and the lower end face is coated with pigment; an image acquisition device 2 is provided on one side of the end face template (15); the image acquisition device 2 is used to acquire the end face image of the gear to be detected.

2. The gear detection device according to claim 1, characterized in that, The support frame (2) includes a column and a crossbeam; the column is vertically fixed to the base (1), and the crossbeam is perpendicular to the top of the column; the lifting plate (4) is installed on the end of the crossbeam away from the column by a height adjustment component.

3. The gear detection device according to claim 1, characterized in that, The height adjustment unit (3) and the radial adjustment unit are hydraulic cylinders or hydraulic push rods.

4. The gear detection device according to claim 3, characterized in that, The controller is used for: Ⅰ. Control the height adjustment unit (3) to work, causing the lifting plate (4) to descend by a preset height; Control the rotation adjustment unit to work, drive the ring frame (5) to rotate one preset number of times; then control the height adjustment unit (3) to reset, and control the image acquisition device two to acquire the end face image one; Control the height adjustment unit (3) to work, causing the lifting plate (4) to descend by a preset height two; then control the rotation adjustment unit to work, causing the ring frame (5) to rotate the preset number of times; then control the height adjustment unit (3) to reset, and control the image acquisition device two to acquire the end face image two; wherein; the preset height one is less than the preset height two, and the preset height two is the distance between the end face template (15) and the end face of the gear to be tested; Determine whether there are areas with pigment color in end face image one and / or whether there are areas without pigment in end face image two. If so, it is determined that there is a defect on the gear end face, and the end face inspection is completed. II. Control the radial adjustment unit to work so that the two toothed templates (8) enter the tooth groove of the gear to be tested; then control the rotation adjustment unit to work so that the ring frame (5) rotates in one direction by a preset angle so that the dye on the coated cotton adheres to the tooth surface; then control the rotation adjustment unit to first reset and then rotate in the opposite direction by a preset angle so that the dye on the coated cotton adheres to the other tooth surface of the tooth groove; finally, control the rotation adjustment unit to reset first, and then control the radial adjustment unit to reset. Control the rotation adjustment unit to work, drive the ring frame (5) to rotate by one tooth groove angle, control the radial adjustment unit to work, so that the two tooth templates (8) enter the next tooth groove; control the image acquisition device to collect the images of the two tooth surfaces after staining in the tooth groove, and compare the images with the preset standard images. If the similarity is lower than the preset value, it is determined that there are defects in the corresponding tooth surface. When the control rotation adjustment unit is working in the new tooth groove to perform tooth surface dyeing, the coating cotton coated with cleaning agent will clean and decompose the color on the dyed tooth surface. Before the tooth template (8) leaves the tooth groove, the control image acquisition device will collect the tooth surface image again and determine whether there is a color gathering place in the image. If so, it is determined that there is a risk of crack defects on the tooth surface, and the tooth surface detection is completed. III. During the tooth surface detection process, when the tooth template (8) enters the tooth groove for the first time, the distance sensor is controlled to detect the distance between the tooth and the tooth surface of the tooth groove; the distance detected in each tooth groove is compared to form a dataset. If there is a difference in the dataset that exceeds a preset difference, it is determined that there is an uneven tooth pitch defect, and the tooth pitch detection is completed.

5. The gear detection device according to claim 4, characterized in that, The rotation adjustment unit includes a stepper motor (18); the stepper motor (18) is mounted on the lifting plate (4), and its output shaft drives the connection to the annular frame (5).

6. The gear testing device according to claim 5, characterized in that, The detection assembly also includes a tooth tip circle detection unit; the tooth tip circle detection unit includes a tip circle template, the tip circle template is installed at one end of the tooth-shaped template (8) near the center of the annular frame (5), and the tip circle template is coated with pigment; The controller is also used for: IV. Control the radial adjustment unit to move the two toothed templates (8) by a preset distance; Control the rotation adjustment unit to work, drive the ring frame (5) to rotate the preset number of times; then control the radial adjustment unit to reset, and observe whether there is color on the gear tooth tip circle; Control the radial adjustment unit to move the two tooth templates (8) by a preset distance 2; then control the rotation adjustment unit to rotate the ring frame (5) a preset number of times; then control the radial adjustment unit to reset and observe whether there is color on the top circle of the gear teeth; wherein the preset distance 1 is less than the preset distance 2, and the preset distance 2 is the distance between the top circle template and the top circle of the gear teeth to be tested; If there is color on the tip circle when the radial adjustment unit is reset for the first time and / or not all of the tip circle is colored when the radial adjustment unit is reset for the second time, then the tip circle of the gear is determined to have a defect, and the tip circle inspection is completed.

7. A gear inspection method, applied to the gear inspection device according to any one of claims 1-6, characterized in that, Includes the following steps: Place the gear to be tested on the base (1); The gear to be tested is fixed using a fixing component; The controller controls the height adjustment unit (3), rotation adjustment unit and radial adjustment unit in the drive assembly, and cooperates with the tooth surface detection unit, tooth pitch detection unit and end face detection unit in the detection assembly to complete the tooth surface detection, tooth pitch detection and end face detection of the gear.

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