Tooth pitch detection device for gear ring production

Abstract

The utility model discloses a tooth pitch detection device for gear ring production, which relates to the technical field of gear ring production and processing and comprises a base station, a gear ring detection frame arranged in the middle of the top of the base station, tooth pitch detection mechanisms arranged on two sides of the top of the base station, and a control panel arranged on one side of the top of the base station. A gear ring driving motor is arranged on one side of the top of the gear ring detection frame, and an internally-connected rotating disc is arranged on the other side of the top of the gear ring detection frame and is connected with the output end of the gear ring driving motor. A gear ring fixing mechanism is arranged on one side of the inner connecting rotary disc, and the outer side of the gear ring fixing mechanism is sleeved with an ABS gear ring. According to the utility model, ABS gear rings of different specifications and sizes can be fixed by arranging the gear ring fixing mechanism capable of adjusting the length of the inner diameter, so that the ABS gear rings can periodically rotate on the gear ring detection frame, 360-degree detection of the ABS gear rings is realized by utilizing the tooth pitch detection mechanisms on the two sides, and the accuracy of all tooth pitch detection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gear ring production and processing, in particular to a gear ring production pitch detection device. Background Art

[0002] The ABS ring gear is the core component of the automobile ABS anti-lock braking system. When the ring gear rotates, the tooth top and tooth gap alternately face the polar axis. During the rotation of the ring gear, the magnetic flux inside the induction coil changes alternately to generate an induced electromotive force. The secondary signal is input into the ABS electronic control unit through the cable at the end of the induction coil.

[0003] When producing ABS gear rings, each gear ring pitch needs to be tested to ensure that the gear ring production is qualified. In the actual testing process, since the number of teeth of ABS gear rings of different specifications is not exactly the same, but the common gear ring detection device has a single structure and can only adapt to a certain type of ABS gear ring, when testing ABS gear pitches of different specifications, it is necessary to customize a locking tool that matches the ABS gear ring for use. Otherwise, when the locking tool does not match the gear ring, the ABS gear ring will be radially offset during rotation, resulting in a large detection error.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a tooth pitch detection device for gear ring production to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A pitch detection device for gear ring production comprises a base, a gear ring detection frame is arranged at the middle position of the top of the base, pitch detection mechanisms are arranged on both sides of the top of the base, a control panel is arranged on one side of the top of the base, a gear ring drive motor is arranged on one side of the top of the gear ring detection frame, an internal turntable is arranged on the other side of the top of the gear ring detection frame, and the internal turntable is connected to the output end of the gear ring drive motor; a gear ring fixing mechanism is arranged on one side of the internal turntable, and an ABS gear ring is sleeved on the outer side of the gear ring fixing mechanism.

[0008] Furthermore, in order to enable the inner turntable to rotate inside the outer fixed ring, the ABS ring gear is tested in all directions by utilizing the action of the ring gear driving motor. A detection slot is provided at the bottom of the ring gear detection frame, and an outer fixed ring is provided on the top of the ring gear detection frame away from the side of the ring gear driving motor. The inner turntable is located inside the outer fixed ring and maintains a movably connected state.

[0009] Furthermore, in order to utilize the lifting motor to drive the lifting mounting plate to perform lifting activities, drive the detection camera on the top to move so that it can always be aligned with the bottom of the ABS gear ring, vertically capture the gear ring image of the area, and then transmit it to the computer device for image processing, the pitch detection mechanism includes a fixed base plate arranged on the top of the base, a lifting motor is arranged on the side of the top of the fixed base plate away from the gear ring detection frame, two limit columns are arranged on the other side of the top of the fixed base plate, a lifting mounting plate is arranged on the top of the two limit columns, a lifting threaded rod is arranged on the top of the lifting motor, and a lifting slider matching the lifting threaded rod is arranged on one side of the lifting mounting plate; a camera bracket is arranged on the other side of the lifting mounting plate, a detection camera is arranged on the top of the camera bracket, and a fill light is arranged on the top of the detection camera; the detection cameras located on both sides of the top of the base are symmetrical to each other, and the detection cameras are located in the detection groove.

[0010] Furthermore, in order to utilize the double-headed threaded rod to drive the two gear ring inner abutment plates on both sides to contact the inner side of the ABS gear ring, the contact force is increased so that the ABS gear ring is stably fixed in the two gear ring inner grooves and can be fixed and rotated on the internally connected turntable. The gear ring fixing mechanism includes an arched support plate arranged on one side of the internally connected turntable, and limiting slide rails are arranged on both sides of the arched support plate. Two rotating shaft brackets are arranged in the middle position of the arched support plate, and the rotating shaft bracket is interspersed with a double-headed threaded rod. Both ends of the double-headed threaded rod are sleeved with internal threaded sliders, and a connecting rod is arranged on the side of the internal threaded slider away from the rotating shaft bracket, and a gear ring inner abutment plate is arranged at one end of the connecting rod. The end of the gear ring inner abutment plate is provided with a gear ring inner groove matching the ABS gear ring, an adjusting knob is arranged in the middle position of the double-headed threaded rod, and a limiting retaining ring is arranged on the part of the double-headed threaded rod located on the inner side of the rotating shaft bracket.

[0011] Furthermore, in order to enable the internal threaded sliders on both sides to slide translationally inside the limiting slide rail and drive the inner abutment plate of the gear ring connected to the internal threaded slider to contact the ABS gear ring to fix the gear ring, the interior of the limiting slide rail is a T-shaped structure, and the bottom of the internal threaded slider is a T-shaped structure that matches the limiting slide rail.

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

[0013] 1. By setting up a gear ring fixing mechanism with adjustable inner diameter length, ABS gear rings of different specifications and sizes can be fixed so that they can be periodically rotated on the gear ring detection frame. By using the pitch detection mechanisms on both sides, 360° detection of the ABS gear ring can be achieved to ensure the accuracy of all pitch detection.

[0014] 2. By setting up an adjustable pitch detection mechanism, it can be used with ABS gear rings of different specifications and sizes, so that the detection camera can always capture the image data of the bottom of the ABS gear ring at a vertical angle to ensure the accuracy and clarity of the image; then by transmitting it to the computer and using image processing technology to mark the position of each tooth in the image, the length of the pitch is automatically identified, thereby realizing intelligent detection of the pitch.

[0015] 3. By setting up adjustment knobs, double-threaded rods, internal threaded sliders and other mechanisms, ABS gear rings of different diameters can be fixed through simple manual adjustment, reducing the difficulty of operation while ensuring the stability and adaptability of the gear ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a pitch detection device for gear ring production according to an embodiment of the utility model;

[0018] Figure 2 It is one of the structural schematic diagrams of a pitch detection device for gear ring production without the ABS gear ring according to an embodiment of the utility model;

[0019] Figure 3 This is a second structural schematic diagram of a pitch detection device for gear ring production without an ABS gear ring according to an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a gear ring detection frame and a gear ring fixing mechanism in a gear ring production pitch detection device according to an embodiment of the utility model;

[0021] Figure 5 The present invention is a schematic structural diagram of an internally connected rotating disk and an arched supporting plate in a pitch detection device for gear ring production according to an embodiment of the present invention.

[0022] In the figure:

[0023] 1. Base; 2. Gear ring detection frame; 3. Tooth pitch detection mechanism; 301. Fixed bottom plate; 302. Lifting motor; 303. Limiting column; 304. Lifting mounting plate; 305. Lifting threaded rod; 306. Lifting slider; 307. Camera bracket; 308. Detection camera; 309. Fill light; 4. Control panel; 5. Gear ring drive motor; 6. Internal turntable; 7. Gear ring fixing mechanism; 701. Arch support plate; 702. Limiting slide rail; 703. Rotating shaft bracket; 704. Double-headed threaded rod; 705. Internal threaded slider; 706. Connecting rod; 707. Gear ring inner plate; 708. Gear ring inner slot; 709. Adjusting knob; 710. Limit retaining ring; 8. ABS gear ring; 9. Detection through slot; 10. External fixing ring. DETAILED DESCRIPTION

[0024] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] According to an embodiment of the utility model, a tooth pitch detection device for gear ring production is provided.

[0026] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 5 As shown, according to the embodiment of the utility model, the pitch detection device for gear ring production includes a base 1, a gear ring detection frame 2 is arranged at the middle position of the top of the base 1, pitch detection mechanisms 3 are arranged on both sides of the top of the base 1, a control panel 4 is arranged on one side of the top of the base 1, a gear ring drive motor 5 is arranged on one side of the top of the gear ring detection frame 2, an internal turntable 6 is arranged on the other side of the top of the gear ring detection frame 2, and the internal turntable 6 is connected to the output end of the gear ring drive motor 5; a gear ring fixing mechanism 7 is arranged on one side of the internal turntable 6, and an ABS gear ring 8 is sleeved on the outer side of the gear ring fixing mechanism 7.

[0027] With the aid of the above technical solution, by setting up a gear ring fixing mechanism 7 with an adjustable inner diameter length, it is possible to fix ABS gear rings 8 of different specifications and sizes so that they can rotate periodically on the gear ring detection frame 2. By utilizing the pitch detection mechanisms 3 on both sides, 360° detection of the ABS gear ring can be achieved, thereby ensuring the accuracy of all pitch detections.

[0028] In one embodiment, for the above-mentioned ring gear detection frame 2, a detection through groove 9 is opened at the bottom of the ring gear detection frame 2, and an external fixing ring 10 is provided on the side of the top of the ring gear detection frame 2 away from the ring gear drive motor 5. The internal rotating disk 6 is located inside the external fixing ring 10 and maintains a movably connected state, so that the internal rotating disk 6 can rotate inside the external fixing ring 10, and the action of the ring gear drive motor 5 is utilized to perform all-round detection of the ABS ring gear 8.

[0029] In one embodiment, for the above-mentioned pitch detection mechanism 3, the pitch detection mechanism 3 includes a fixed bottom plate 301 arranged on the top of the base 1, a lifting motor 302 is arranged on the side of the top of the fixed bottom plate 301 away from the gear ring detection frame 2, two limit columns 303 are arranged on the other side of the top of the fixed bottom plate 301, a lifting installation plate 304 is arranged on the top of the two limit columns 303, a lifting threaded rod 305 is arranged on the top of the lifting motor 302, and a lifting slider 306 matching the lifting threaded rod 305 is arranged on one side of the lifting installation plate 304; the lifting installation plate 304 A camera bracket 307 is provided on the other side, and a detection camera 308 is provided on the top of the camera bracket 307, and a fill light 309 is provided on the top of the detection camera 308; the detection cameras 308 located on both sides of the top of the base 1 are symmetrical to each other, and the detection camera 308 is located in the detection groove 9, so that the lifting motor 302 can be used to drive the lifting mounting plate 304 to perform lifting activities, driving the top detection camera 308 to move, so that it can always be aligned with the bottom of the ABS gear ring 8, vertically capture the gear ring image of the area, and then transmit it to the computer equipment for image processing.

[0030] In one embodiment, for the above-mentioned gear ring fixing mechanism 7, the gear ring fixing mechanism 7 includes an arched support plate 701 arranged on one side of the internal rotating disk 6, and limited position slide rails 702 are arranged on both sides of the arched support plate 701. Two rotating shaft brackets 703 are arranged in the middle position of the arched support plate 701. The rotating shaft bracket 703 is interspersed with a double-headed threaded rod 704, and both ends of the double-headed threaded rod 704 are sleeved with an internal threaded slider 705. A connecting rod 706 is arranged on the side of the internal threaded slider 705 away from the rotating shaft bracket 703, and one end of the connecting rod 706 is provided with a gear ring inner stop Plate 707, the end of the gear ring inner plate 707 is provided with a gear ring inner groove 708 that matches the ABS gear ring 8, an adjusting knob 709 is arranged in the middle position of the double-headed threaded rod 704, and a limit retaining ring 710 is arranged on the part of the double-headed threaded rod 704 located on the inner side of the rotating shaft bracket 703, so that the double-headed threaded rod 704 can be used to drive the two gear ring inner plates 707 on both sides to contact the inner side of the ABS gear ring 8, and by increasing the contact force, the ABS gear ring 8 can be stably fixed inside the two gear ring inner grooves 708, and can be fixed and rotated on the internal turntable 6.

[0031] In one embodiment, for the above-mentioned limiting slide rail 702, the interior of the limiting slide rail 702 is a T-shaped structure, and the bottom of the internal threaded slider 705 is a T-shaped structure that matches the limiting slide rail 702, so that the internal threaded sliders 705 on both sides can translate and slide inside the limiting slide rail 702, and drive the inner support plate 707 of the gear ring connected to the internal threaded slider 705 to contact the ABS gear ring 8, thereby fixing the gear ring.

[0032] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0033] In actual application, after obtaining the ABS gear ring 8 after production, it is necessary to conduct quality inspection on parameters such as pitch and number of teeth. For ABS gear rings 8 of the same batch or the same specification, a pitch detection mechanism 3 of uniform height can be used. It is only necessary to adjust the size of the gear ring fixing mechanism 7 so that the ABS gear ring 8 can be replaced and fixed. When inspection is required, align the ABS gear ring with the two gear ring inner plates 707, and manually rotate the adjustment knob 709 to rotate the double-headed threaded rod 704 and push the two internal threaded sliders 705 to move outward. Until the gear ring inner plate 707 and the gear ring inner groove 708 on its end face contact the inside of the ABS gear ring 8, continue to tighten the contact force so that the ABS gear ring can be stably fixed without sliding or offset. Next, it is necessary to start the inspection camera 308. When the light is poor, you can choose to turn on the fill light 309 for fill light. The two detection cameras 308 will simultaneously capture images of the two sides of the bottom of the ABS gear ring 8, and transmit the images to the computer device in real time through the data line. The computer device will identify and cut all the teeth of the ABS gear ring 8 in the local image according to the pre-configured image processing algorithm, and calculate the size of each tooth pitch according to the distance between the teeth. After the local tooth pitch measurement is completed, the gear ring drive motor 5 is used to drive the ABS gear ring 8 to rotate until the entire circumference is detected, the ABS gear ring 8 is removed, and the information of each tooth pitch is read through the computer device.

[0034] The inspection camera 308 may be a common industrial camera, such as Basler ace acA2500-14gm, which has a resolution of 2500×2048 pixels and a GigE interface, suitable for high-resolution image acquisition. Alternatively, FLIR Blackfly S BFS-U3-50S5C-C may be used, which has a resolution of 5MP and a USB3.1 interface, supporting high-speed image transmission. Alternatively, Allied Vision Mako G-507 may be used, which has a resolution of 2592×1944 pixels and a GigE interface, suitable for high-precision image processing applications.

[0035] In addition, the use of computer equipment image processing technology to achieve pitch detection includes the following aspects:

[0036] 1. Use OpenCV, MATLAB or other image processing libraries as image processing algorithms, and develop algorithms using programming languages ​​such as Python and C++.

[0037] 2. Image preprocessing: Convert the captured gear ring image into a grayscale image; use Gaussian filtering or other filters for noise reduction.

[0038] 3. Use the Canny edge detection algorithm to identify the edge of the gear ring, and use a contour detection algorithm (such as findContours in OpenCV) to identify the contour of each tooth.

[0039] 4. Calculate the distance between the center points of two adjacent teeth to determine the tooth pitch.

[0040] 5. Finally output the pitch of each tooth.

[0041] In summary, with the aid of the above technical solution of the utility model, by setting a gear ring fixing mechanism 7 with adjustable inner diameter length, ABS gear rings 8 of different specifications and sizes can be fixed, so that they can be periodically rotated on the gear ring detection frame 2, and the pitch detection mechanisms 3 on both sides are used to realize 360° detection of the ABS gear ring, thereby ensuring the accuracy of all pitch detection. By setting a pitch detection mechanism 3 that can be raised and lowered, it can be matched with ABS gear rings 8 of different specifications and sizes, so that the detection camera 308 can always shoot the image data of the bottom end of the ABS gear ring 8 at a vertical angle, thereby ensuring the accuracy and clarity of the image; and then by transmitting to a computer, using image processing technology, marking the position of each tooth in the image, automatically identifying the length of the pitch, thereby realizing intelligent detection of the pitch. By setting mechanisms such as the adjustment knob 709, the double-headed threaded rod 704, and the internal threaded slider 705, ABS gear rings 8 of different diameters can be fixed through simple manual adjustment, reducing the difficulty of operation, while ensuring the stability and adaptability of the gear ring.

[0042] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tooth pitch detection device for gear ring production, comprising a base (1), characterized in that: A gear ring detection frame (2) is arranged at the middle position of the top of the base (1), pitch detection mechanisms (3) are arranged on both sides of the top of the base (1), and a control panel (4) is arranged on one side of the top of the base (1); A ring gear drive motor (5) is arranged on one side of the top of the ring gear detection frame (2), and an internally connected rotating disk (6) is arranged on the other side of the top of the ring gear detection frame (2), and the internally connected rotating disk (6) is connected to the output end of the ring gear drive motor (5); A gear ring fixing mechanism (7) is provided on one side of the inscribed rotating disk (6), and an ABS gear ring (8) is sleeved on the outer side of the gear ring fixing mechanism (7).

2. A pitch detection device for gear ring production according to claim 1, characterized in that: A detection through slot (9) is provided at the bottom of the ring gear detection frame (2); an external fixing ring (10) is provided at the top of the ring gear detection frame (2) on a side away from the ring gear drive motor (5); and the internal rotating disk (6) is located inside the external fixing ring (10) and remains movably connected.

3. A pitch detection device for gear ring production according to claim 2, characterized in that: The pitch detection mechanism (3) comprises a fixed base plate (301) arranged on the top of the base (1); a lifting motor (302) is arranged on the side of the top of the fixed base plate (301) away from the gear ring detection frame (2); two limit columns (303) are arranged on the other side of the top of the fixed base plate (301); a lifting installation plate (304) is arranged on the top of the two limit columns (303); a lifting threaded rod (305) is arranged on the top of the lifting motor (302); and a lifting slider (306) matching the lifting threaded rod (305) is arranged on one side of the lifting installation plate (304); A camera bracket (307) is arranged on the other side of the lifting installation plate (304), a detection camera (308) is arranged on the top of the camera bracket (307), and a fill light (309) is arranged on the top of the detection camera (308).

4. A pitch detection device for gear ring production according to claim 3, characterized in that: The detection cameras (308) located on both sides of the top of the base (1) are symmetrical to each other, and the detection cameras (308) are located in the detection slot (9).

5. A pitch detection device for gear ring production according to claim 1, characterized in that: The gear ring fixing mechanism (7) comprises an arched support plate (701) arranged on one side of the inscribed rotating disk (6), and limit slide rails (702) are arranged on both sides of the arched support plate (701). Two rotating shaft brackets (703) are arranged in the middle of the arched support plate (701), and a double-headed threaded rod (704) is inserted through the rotating shaft bracket (703). Both ends of the double-headed threaded rod (704) are sleeved with internal threaded sliders (705), and a connecting rod (706) is arranged on the side of the internal threaded slider (705) away from the rotating shaft bracket (703), and a gear ring inner abutment plate (707) is arranged at one end of the connecting rod (706), and a gear ring inner clamping groove (708) matching the ABS gear ring (8) is opened at the end of the gear ring inner abutment plate (707).

6. A pitch detection device for gear ring production according to claim 5, characterized in that: An adjusting knob (709) is provided in the middle of the double-headed threaded rod (704), and a limit retaining ring (710) is provided on the portion of the double-headed threaded rod (704) located inside the rotating shaft bracket (703).

7. A pitch detection device for gear ring production according to claim 5, characterized in that: The interior of the limiting slide rail (702) is a T-shaped structure, and the bottom of the internal threaded slider (705) is a T-shaped structure that matches the limiting slide rail (702).

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