Gear detection device and detection method thereof

Abstract

The invention 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 supporting frame, a detection assembly, a driving assembly, a fixing assembly and a controller. Wherein the support frame is fixed at one end of the base; the detection assembly is arranged on the supporting frame and located over 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 supporting frame; the fixing assembly is arranged on the base and is used for fixing a to-be-detected gear; 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, under the mutual cooperation of all the assemblies, tooth surface detection, tooth pitch detection and end face detection are integrated on one set of detection device, the detection process is simplified, and the detection efficiency and precision are improved.

Description

Technical Field

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

[0002] As a core component in the mechanical transmission system, the machining accuracy of gears directly affects the operating 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 instruments such as optical projectors, micrometers, and pitch gauges. Although these methods can meet the detection requirements to a certain extent, there are still the following problems:

[0003] Low detection efficiency: Traditional detection methods require manual operation, with a cumbersome detection process and long time consumption, making it difficult to meet the needs of mass production.

[0004] Limited accuracy: The accuracy of instruments such as optical projectors and micrometers 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 meet the detection requirements of different specifications of gears.

[0006] Poor integration: It is difficult to use a set of structures to simultaneously detect the tooth surface, tooth pitch, and end face. Summary of the Invention

[0007] The object of the present invention can be achieved by the following technical solutions:

[0008] A gear detection device includes a base, a support frame, a detection component, a drive component, a fixing component, and a controller; wherein:

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

[0010] The detection component is arranged on the support frame and is directly above the fixing component; the detection component includes an annular frame and a lifting plate; the annular 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 annular frame are arranged inside the annular frame; a chute is preset on the bottom surface of the swing rod, and a sliding rod is slidably installed in the chute; a tooth surface detection unit and a tooth pitch detection unit are arranged on the swing rod; an end face detection unit is arranged on the annular frame; wherein, the distance between the two swing rods is the same as the standard tooth pitch of the gear to be detected;

[0011] The drive component includes 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 annular frame to rotate on the lifting plate; the radial adjustment unit is used to adjust the position of the sliding rod in the chute;

[0012] The fixing component is arranged on the base and is used to fix the gear to be detected.

[0013] The controller is electrically connected to the driving component and the detecting component.

[0014] In one solution of the present invention: The support frame includes a column and a cross beam; the column is vertically fixed on the base, and the cross beam is perpendicular to the top end of the column; the lifting plate is installed at one end of the cross beam away from the column through a height adjusting component.

[0015] In one solution of the present invention: The height adjusting unit and the radial adjusting unit are hydraulic cylinders or hydraulic push rods.

[0016] In one solution of the present invention: The tooth surface detecting unit includes two tooth profile templates and an image collector I.

[0017] Two tooth profile templates; the two side surfaces of the tooth profile template match the tooth profile surfaces of the gear to be detected, and coating cotton is installed on both side surfaces; the two tooth profile templates are respectively detachably installed on two swing rods; the coating cotton of one of the tooth profile templates is infiltrated with a coloring agent, and the coating cotton of the other tooth profile template is infiltrated with a cleaning agent;

[0018] The image collector I, which is installed on the tooth profile template where the cleaning agent is located, is used to collect the image of the tooth surface.

[0019] In one solution of the present invention: The tooth pitch detecting unit includes a distance sensor; the distance sensor is installed on the tooth profile template where the graphic collector is located and is used to measure the distance from the tooth surface.

[0020] In one solution of the present invention: The end face detecting unit includes an end face template; the end face template is horizontally arranged, and the upper end face is installed at the bottom of the annular frame, and the lower end face is attached with a pigment; an image collector II is arranged on one side of the end face template; the image collector II is used to collect the end face image of the gear to be detected.

[0021] In one solution of the present invention: The controller is used for:

[0022] Ⅰ. Control the height adjusting unit to work, drive the lifting plate to descend a preset height I;

[0023] Control the rotation adjusting unit to work, drive the annular frame to rotate a preset number of turns; then control the height adjusting unit to reset, and control the image collector II to collect the first end face image;

[0024] Control the height adjustment unit to work, driving the lifting plate to descend by a preset height two; then control the rotation adjustment unit to work, driving the annular frame to rotate by a preset number of turns; then control the height adjustment unit to reset, and control the image collector two to collect the end face image two; where; the preset height one is less than the preset height two, and the preset height two is the distance between the end face template and the end face of the gear to be detected;

[0025] Judge whether there is a part with pigment color in the end face image one and / or whether there is a part without attached pigment in the end face image two. If so, it is determined that there are defects on the gear end face, and the end face detection is completed;

[0026] Ⅱ. Control the radial adjustment unit to work, so that the two tooth profile templates enter the tooth grooves of the gear to be detected; then control the rotation adjustment unit to work, driving the annular frame to rotate in one direction by a preset angle, so that the dye on the coating cotton adheres to the tooth surface; then control the rotation adjustment unit to first reset and then rotate in the reverse direction by the preset angle so that the dye on the coating cotton adheres to the other tooth surface of the tooth groove; finally, first control the rotation adjustment unit to reset, and then control the radial adjustment unit to reset;

[0027] Control the rotation adjustment unit to work. After driving the annular frame to rotate by a tooth groove angle, control the radial adjustment unit to work, so that the two tooth profile templates enter the next tooth groove; control the image collector one to collect the dyed images of the two tooth surfaces in the tooth groove respectively, 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 on the corresponding tooth surface;

[0028] Wherein, when controlling the rotation adjustment unit to work for tooth surface dyeing in a new tooth groove, the coating cotton coated with cleaning agent will clean and decompose the color on the dyed tooth surface, and before the tooth profile template disengages from the tooth groove, control the image collector one to collect the tooth surface image again, and judge whether there is a color aggregation area in the image. If so, it is judged that there is a risk of crack defect on the tooth surface, and the tooth surface detection is completed;

[0029] Ⅲ. During the tooth surface detection process, when the tooth profile template first enters the tooth groove, control the distance sensor to detect the distance from the tooth surface of the tooth groove; compare the distances detected in each tooth groove to form a data set. If there is a difference in the data set that exceeds a preset difference, it is determined that there is an uneven defect in the tooth pitch, and the tooth pitch detection is completed.

[0030] In one solution of the present invention: the rotation adjustment unit includes a stepping motor; the stepping motor is installed on the lifting plate, and the output shaft is drivingly connected to the annular frame.

[0031] In one solution of the present invention: the detection assembly further includes a tooth top circle detection unit; the tooth top circle detection unit includes a top circle template, the top circle template is installed at one end of the tooth profile template close to the center of the annular frame, and the top circle template is attached with pigment;

[0032] The controller is further configured to:

[0033] Ⅳ. Control the radial adjustment unit to work, so that the two tooth profile templates move a preset distance one;

[0034] Control the rotational adjustment unit to work, drive the annular frame to rotate a preset number of turns; then control the radial adjustment unit to reset, and observe whether there is color on the top circle of the gear teeth;

[0035] Control the radial adjustment unit to work, so that the two tooth profile templates move a preset distance two; then control the rotational adjustment unit to work, drive the annular frame to rotate a preset number of turns; then control the radial adjustment unit to reset, and observe whether there is color on all of the top circles of the gear teeth; wherein, the preset distance one is less than the preset distance two, and the preset distance two is the distance between the top circle template and the top circle of the gear to be detected;

[0036] If there is color on the top circle of the gear teeth when the radial adjustment unit is reset for the first time and / or there is not color on all of the top circles of the gear teeth when the radial adjustment unit is reset for the second time, if it exists, it is determined that there are defects on the top circle of the gear teeth, and the detection of the top circle of the gear teeth is completed.

[0037] The present invention also discloses a gear detection method, including the following steps:

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

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

[0040] The controller controls the height adjustment unit, the rotational adjustment unit and the radial adjustment unit in the driving component to cooperate with the tooth surface detection unit, the tooth pitch detection unit and the end face detection unit in the detection component to complete the tooth surface detection, the tooth pitch detection and the end face detection of the gear.

[0041] Advantages of the present invention:

[0042] When the gear detection device of the present invention is in use, place the gear to be detected on the base; fix the gear to be detected by using the fixing component; the controller controls the height adjustment unit, the rotational adjustment unit and the radial adjustment unit in the driving component to cooperate with the tooth surface detection unit, the tooth pitch detection unit and the end face detection unit in the detection component to complete the tooth surface detection, the tooth pitch detection and the end face detection of the gear. By setting the detection component, the driving component, the fixing component and the controller, and with the cooperation of each component, the tooth surface detection, the tooth pitch detection and the end face detection are integrated into a set of detection device, which simplifies the detection process and improves the detection efficiency and accuracy.

[0043] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Brief Description of the Drawings

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

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

[0046] Figure 2 is Figure 1 another perspective view of;

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

[0048] Figure 4 is Figure 3 an enlarged structural view of part A in;

[0049] Figure 5 is a schematic structural diagram of the end face template and the annular frame in the present invention;

[0050] Figure 6 is a schematic structural diagram of the annular frame and the lifting plate in the present invention;

[0051] Figure 7 is a schematic structural diagram of the swing rod and the sliding rod in the present invention.

[0052] In the figure: 1, base; 101, auxiliary groove; 102, adjustment groove; 2, support frame; 3, height adjustment unit; 4, lifting plate; 401, rotation groove; 5, annular frame; 501, annular groove; 6, connecting rod; 7, connecting frame; 8, tooth-shaped template; 9, pressing block; 10, receiving block; 11, connecting rod; 12, adjustment block; 13, clamping plate; 14, return spring; 15, end face template; 16, swing rod; 1601, chute; 17, sliding rod; 18, stepping motor. Detailed Description of the Invention

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] In the description of the present invention, it should be understood that with regard to the orientation description, such as the upper, lower, front, rear, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0055] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, and understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0056] Please refer to Figures 1-7 , the present invention is a gear detection device, mainly used for detecting the tooth surface, tooth pitch and end face of spur gears. Specifically, it includes a base 1, a support frame 2, a detection component, a driving component, a fixing component and a controller; among them:

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

[0058] The detection component is arranged on the support frame 2 and is directly above the fixing component; the detection component includes 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 inside the annular frame 5; a chute 1601 is preset on the bottom surface of the swing rod 16, and a sliding rod 17 is slidably installed in the chute 1601; a tooth surface detection unit and a tooth pitch detection unit are arranged on the swing rod 16; an end face detection unit is arranged on the annular frame 5; among them, the distance between the two swing rods 16 is the same as the standard tooth pitch of the gear to be detected;

[0059] The driving component includes a height adjustment unit 3, a rotation adjustment unit and a radial adjustment unit; the height adjustment unit 3 is arranged 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 sliding rod 17 in the chute 1601;

[0060] The fixing component 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 component and the detection component.

[0062] It should be noted that:

[0063] One end of the swing rod 16 is rotatably connected to the annular frame 5, and the other end is slidably arranged in the preset annular groove 501 of the annular frame 5. In order to facilitate determining the angle between the two swing rods 16, scale lines can be arranged on the circumference of the annular frame 5. Further, in order to ensure that the swing rod 16 will not move after adjustment, a fixing member should be provided, for example, a bolt can be used. It is also possible to provide a certain frictional force between the annular groove 501 and the swing rod 16, as long as it can ensure that it will not move easily.

[0064] When the gear detection device of the present invention is in use, the gear to be detected is placed on the base 1; the fixing component is used to fix the gear to be detected; the controller controls the height adjustment unit 3, the rotation adjustment unit, and the radial adjustment unit in the driving component to cooperate with the tooth surface detection unit, the tooth pitch detection unit, and the end face detection unit in the detection component to complete the tooth surface detection, tooth pitch detection, and end face detection of the gear. By providing the detection component, the driving component, the fixing component, and the controller, and with the cooperation of each component, the tooth surface detection, tooth pitch detection, and end face detection are integrated into a set of detection devices, simplifying the detection process and improving the detection efficiency and accuracy.

[0065] Please combine Figures 1-7 , and specifically describe each component of the present invention;

[0066] First of all, the base 1 is a rectangular platform, made of high-strength steel, with anti-slip pads at the bottom for stabilizing the device; the bottom plate is a rectangular steel plate with a thickness of 10 mm, and the surface is treated with rust prevention; the anti-slip pads are made of rubber and are pasted on the bottom of the bottom plate for increasing friction; the adjusting feet are adjustable bolts installed at the four corners of the bottom plate for adjusting the levelness of the base 1.

[0067] Secondly, the support frame 2 includes columns and crossbeams; the columns are vertically fixed on the base 1, and the crossbeams are perpendicular to the tops of the columns; the lifting plate 4 is installed at one end of the crossbeam away from the column through the height adjustment component.

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

[0069] Two tooth profile templates 8; the two side surfaces of the tooth profile template 8 match the tooth profile surfaces of the gear to be detected, and coating cotton is installed on both side surfaces; the two tooth profile templates 8 are respectively detachably installed on the two swing rods 16; the coating cotton of one of the tooth profile templates 8 is infiltrated with a dyeing agent, and the coating cotton of the other tooth profile template 8 is infiltrated with a cleaning agent;

[0070] The image collector I is installed on the tooth profile template 8 where the cleaning agent is located for collecting images of the tooth surface.

[0071] It should be noted that:

[0072] The detachable connection method between the tooth profile template 8 and the swing rod 16 is not limited. For example, it can be connected by snap fasteners, bolts, bonding, etc., as long as detachable connection can be achieved, and it will not be elaborated here.

[0073] The staining agent and cleaning agent used in the present invention are used in combination; the staining agent is mainly used to stain the tooth surface to magnify the defects on the tooth surface, such as depressions or protrusions. Through the attachment of the staining agent, the subsequent image comparison results will be more obvious; the cleaning agent is used to eliminate the color of the staining agent and restore the tooth surface to normal. When there is a crack on the tooth surface, the staining agent will enter the crack, and at this time, the cleaning agent cannot decompose the staining agent in the crack. Therefore, it can be judged whether there is a crack during image acquisition.

[0074] When detecting the tooth surface, the staining agent is attached to the tooth surface through a coating cotton, and then the tooth surface image is collected. By comparing the collected image with the standard image, through color difference analysis and similarity analysis, the tooth surface condition can be judged; for example, if there is a depression, there may be a place on the image where the color is not attached. If there is a protrusion, there will also be an obvious difference between the image and the standard image. If the tooth surface is uneven and tilted, there will also be an obvious difference between the image and the standard image. The cleaning agent is attached to the tooth surface through the coating cotton to decompose the color, and it can be judged whether there is a crack on the tooth surface in the image.

[0075] In addition, the tooth pitch detection unit includes a distance sensor; the distance sensor is installed on the tooth profile template 8 where the graphic 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, and the upper end face is installed at the bottom of the annular frame 5, and the lower end face is attached with pigment; an image collector II is arranged on one side of the end face template 15; the image collector II is used to collect the end face image of the gear to be detected.

[0077] It should be noted that there should be no interference between the end face template 15 in the end face detection unit and the swing rod 16. In specific operations, an L-shaped swing rod 16 can be used to avoid interference.

[0078] As the core structure in the present invention, the controller is used for:

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

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

[0081] Control the height adjustment unit 3 to work, driving the lifting plate 4 to descend by a preset height two; then control the rotation adjustment unit to work, driving the annular frame 5 to rotate by a preset number of turns; then control the height adjustment unit 3 to reset, and control the image collector two to collect the end face image two; where; 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 detected;

[0082] Judge whether there are parts with pigment color in the end face image one and / or whether there are parts without attached pigment in the end face image two. If so, it is determined that there are defects on the gear end face, 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, if the flatness error of the end face of the gear to be detected can be 0.1 cm, then the difference between the preset height one and the preset height two is 0.1 cm.

[0084] Ⅱ. Control the radial adjustment unit to work, so that the two tooth profile templates 8 enter the tooth grooves of the gear to be detected; then control the rotation adjustment unit to work, driving the annular frame 5 to rotate in one direction by a preset angle, so that the dye on the coating cotton adheres to the tooth surface; then control the rotation adjustment unit to reset first and then rotate in the reverse direction by the preset angle so that the dye on the coating 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;

[0085] Control the rotation adjustment unit to work. After driving the annular frame 5 to rotate by a tooth groove angle, control the radial adjustment unit to work, so that the two tooth profile templates 8 enter the next tooth groove; control the image collector one to collect the images of the two tooth surfaces after dyeing in the tooth groove respectively, 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 on the corresponding tooth surface;

[0086] Among them, when controlling the rotation adjustment unit to work for tooth surface dyeing in a new tooth groove, the coating cotton coated with cleaning agent will clean and decompose the color on the dyed tooth surface, and before the tooth profile template 8 disengages from the tooth groove, control the image collector one to collect the tooth surface image again, and judge whether there is a color aggregation area in the image. If so, it is judged that there is a risk of crack defect on the tooth surface, 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 template, and it is sufficient to satisfy the attachment of the coating cotton to the tooth surface.

[0088] Ⅲ. During the tooth surface detection process, when the tooth profile template 8 first enters the tooth groove, control the distance sensor to detect the distance between it and 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 in the data set that exceeds a preset difference, it is determined that there is an uneven flaw in the tooth pitch, and the tooth pitch detection is completed.

[0089] It should be noted that the preset difference is determined based on empirical values.

[0090] Furthermore, in order to avoid collisions between the rack template and the base 1, please refer to Figure 5 , an auxiliary groove 101 is provided on the base 1 to prevent interference between the rack template and the base 1. At the same time, the auxiliary groove 101 can also collect the staining agent and the cleaning agent.

[0091] Of course, in some embodiments of the present invention, the detection component may further include a tooth top circle detection unit; the tooth top circle detection unit includes a top circle template, which is installed at one end of the tooth profile template 8 close to the center of the annular frame 5, and a pigment is attached to the top circle template;

[0092] The controller is further configured to:

[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 to 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 tooth top 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 to 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 entire tooth top circle of the gear; where; the preset distance one is less than the preset distance two, and the preset distance two is the distance between the top circle template and the tooth top circle of the gear to be detected;

[0096] If there is color on the tooth top circle when the radial adjustment unit is reset for the first time and / or there is not color on the entire tooth top circle when the radial adjustment unit is reset for the second time, if so, it is determined that there is a flaw in the tooth top circle of the gear, and the tooth top circle detection is completed.

[0097] It should be noted that the detection of the tooth top 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 invention are hydraulic cylinders or hydraulic push rods, and it is sufficient to be able to achieve the 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 7, the radial adjustment unit is located within the chute 1601 of the swing rod 16 and is connected to the slide rod 17.

[0099] Please refer to Figures 1-6 , the rotation adjustment unit includes a stepper motor 18; the stepper motor 18 is installed on the lifting plate 4, and its output shaft is drivingly connected to the annular frame 5. Specifically, a cross-shaped connecting frame 7 is installed at the upper end of the annular frame 5, and the output shaft of the stepper motor 18 is drivingly connected to the connecting frame 7. Considering stability, connecting rods 6 can also be installed at the four corners of the connecting frame 7, and the upper ends of the connecting rods 6 are slidably arranged within the preset rotation slots 401 on the bottom surface of the lifting plate 4.

[0100] Please refer to Figures 1-4 , the fixing component of the present invention includes a pressing block 9 and a receiving block 10. The pressing block 9 is fixedly installed at 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 a return spring 14. A plurality of connecting rods 11 are hinged to the side wall of the receiving block 10, and the other ends of the connecting rods 11 are all hinged to an adjusting block 12; the adjusting block 12 is slidably installed within the preset adjusting slot 102 on the base 1. A clamping plate 13 for clamping the gear is installed on the top of each adjusting block 12. During use, the shaft hole of the spur gear is sleeved outside the plurality of clamping plates 13. When the height adjustment component 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 block 12 to move within the adjusting slot 102, causing the clamping plates 13 to expand outward, realizing the centering fixation of the shaft hole of the spur gear.

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

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

[0103] Fix the gear to be detected using the fixing component;

[0104] The controller controls the height adjustment unit 3, the rotation adjustment unit, and the radial adjustment unit in the driving component to cooperate with the tooth surface detection unit, the tooth pitch detection unit, and the end face detection unit in the detection component to complete the tooth surface detection, tooth pitch detection, and end face detection of the gear.

[0105] This detection method has the same beneficial effects as the above detection device and will not be elaborated here.

[0106] The above has described a detailed description of an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. Any equivalent changes and improvements made within the scope of the application of the present invention should still fall within the scope covered by the claims of the present invention.

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 arranged on the support frame (2) and is located directly above the fixed component; the detection component comprises 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 groups of swinging rods (16) that can rotate along the center of the annular frame (5) are arranged in the annular frame (5); a sliding groove (1601) is preset on the bottom surface of the swinging rod (16), and a sliding rod (17) is slidably mounted in the sliding groove (1601); a tooth surface detection unit and a tooth pitch detection unit are arranged on the swinging rod (16); an end face detection unit is arranged on the annular frame (5); wherein the distance between the two swinging rods (16) is the same as the standard tooth pitch of the gear to be detected; The driving assembly comprises a height adjustment unit (3), a rotation adjustment unit and a radial adjustment unit; the height adjustment unit (3) is arranged 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 sliding rod (17) in the sliding groove (1601); The fixing assembly is arranged on the base (1) and is used to fix the gear to be detected; The controller is electrically connected to the driving component and the detecting component.

2. The gear detection device according to claim 1, characterized in that: The support frame (2) comprises a column and a crossbeam; the column is vertically fixed on the base (1), and the crossbeam is perpendicular to the top of the column; the lifting plate (4) is installed at an end of the crossbeam away from the column through 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 1, characterized in that: The tooth surface detection unit comprises: Two tooth profile templates (8); the two side surfaces of the tooth profile template (8) match the tooth profile surface of the gear to be tested, and both side surfaces are installed with coating cotton; the two tooth profile templates (8) are detachably installed on the two swing rods (16) respectively; the coating cotton of one of the tooth profile templates (8) is impregnated with a dye, and the coating cotton of the other tooth profile template (8) is impregnated with a cleaning agent; and An image collector 1 is installed on the tooth profile template (8) where the cleaning agent is located, and is used to collect images of the tooth surface.

5. The gear detection device according to claim 4, characterized in that: The tooth pitch detection unit comprises a distance sensor; the distance sensor is mounted on the tooth profile template (8) where the image collector 1 is located, and is used to measure the distance between the tooth profile template and the tooth surface.

6. The gear detection device according to claim 5, characterized in that: The end face detection unit comprises an end face template (15); the end face template (15) is arranged horizontally, and the upper end face is mounted on the bottom of the annular frame (5), and the lower end face is attached with pigment; a second image collector is arranged on one side of the end face template (15); the second image collector is used to collect the end face image of the gear to be detected.

7. The gear detection device according to claim 6, characterized in that: The controller is used to: Ⅰ. Controlling the height adjustment unit (3) to operate, driving the lifting plate (4) to descend to a preset height one; Controlling the rotation adjustment unit to work, driving the annular frame (5) to rotate a preset number of circles; then controlling the height adjustment unit (3) to reset, and controlling the image collector 2 to collect the end face image 1; The height adjustment unit (3) is controlled to operate, driving the lifting plate (4) to descend to a preset height 2; the rotation adjustment unit is then controlled to operate, driving the annular frame (5) to rotate the preset number of circles; the height adjustment unit (3) is then controlled to reset, and the image collector 2 is controlled to collect the end face image 2; wherein the preset height 1 is less than the preset height 2, and the preset height 2 is the distance between the end face template (15) and the end face of the gear to be detected; Determine whether there is a pigmented portion in the first end face image and / or whether there is a portion without pigment in the second end face image. If so, it is determined that there is a defect on the gear end face, and the end face inspection is completed; II. Controlling the radial adjustment unit to operate so that the two tooth profile templates (8) enter the tooth groove of the gear to be tested; then controlling the rotation adjustment unit to operate so as to drive the annular frame (5) to rotate in one direction by a preset angle so that the dye on the coated cotton adheres to the tooth surface; then controlling the rotation adjustment unit to first reset and then rotate in the reverse direction by a preset angle so that the dye on the coated cotton adheres to the other tooth surface of the tooth groove; finally, first controlling the rotation adjustment unit to reset and then controlling the radial adjustment unit to reset; Controlling the rotation adjustment unit to work, driving the annular frame (5) to rotate a tooth groove angle, and then controlling the radial adjustment unit to work, so that the two tooth shape templates (8) enter the next tooth groove; controlling the image collector to respectively collect the dyed images of the two tooth surfaces in the tooth groove, and comparing the images with the preset standard images, and if the similarity is lower than the preset value, it is determined that the corresponding tooth surface has a defect; When the rotation adjustment unit is controlled to work in a new tooth groove to perform tooth surface dyeing, the coating cotton coated with a cleaning agent will clean and decompose the color on the tooth surface after dyeing, and before the tooth shape template (8) is separated from the tooth groove, the image collector is controlled to collect the tooth surface image again, and it is determined whether there is a color gathering place in the image, and 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 profile template (8) enters the tooth groove for the first time, the distance sensor is controlled to detect the distance between the tooth groove and the tooth surface; the distances detected in each tooth groove are compared to form a data set; if the difference in the data set exceeds a preset difference, it is determined that there is an uneven defect in the tooth pitch, and the tooth pitch detection is completed.

8. The gear detection device according to claim 1, characterized in that: The rotation adjustment unit comprises a stepping motor (18); the stepping motor (18) is mounted on the lifting plate (4), and an output shaft is drivingly connected to the annular frame (5).

9. The gear detection device according to claim 7, characterized in that: The detection assembly further comprises a tooth top circle detection unit; the tooth top circle detection unit comprises a top circle template, the top circle template is mounted on one end of the tooth shape template (8) close to the center of the annular frame (5), and a pigment is attached to the top circle template; The controller is also used for: IV. controlling the radial adjustment unit to operate so that the two tooth-shaped templates (8) move a preset distance one; Controlling the rotation adjustment unit to work, driving the annular frame (5) to rotate the preset number of circles; then controlling the radial adjustment unit to reset, and observing whether there is color on the gear tooth top circle; The radial adjustment unit is controlled to operate so that the two tooth profile templates (8) move a preset distance 2; the rotation adjustment unit is then controlled to operate so as to drive the annular frame (5) to rotate the preset number of circles; the radial adjustment unit is then controlled to reset to observe whether all colors exist on the top circle of the gear teeth; wherein the preset distance 1 is smaller 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 detected; If there is color on the addendum circle when the radial adjustment unit is reset for the first time and / or not all colors exist on the addendum circle when the radial adjustment unit is reset for the second time, if there is color, it is determined that there is a defect in the addendum circle of the gear, and the addendum circle detection is completed.

10. A gear detection method, applied to the gear detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Place the gear to be tested on the base (1); Fix the gear to be detected by using a fixing component; The controller controls the height adjustment unit (3), the rotation adjustment unit and the radial adjustment unit in the driving component, and cooperates with the tooth surface detection unit, the tooth pitch detection unit and the end surface detection unit in the detection component to complete the tooth surface detection, tooth pitch detection and end surface detection of the gear.

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