A production inspection device for the outer gear ring of a dual-mass flywheel

Abstract

The present invention discloses a production detection device for the outer gear ring of a dual-mass flywheel, which includes a mounting frame, a clamping mechanism, a detection mechanism, and an adjustment mechanism. The clamping mechanism is installed on the mounting frame and is used to expand and tighten the inner wall of the gear ring of the dual-mass flywheel from the inside. There are two groups of detection mechanisms. Each group of detection mechanisms includes a sliding block, a roller that slides along the tooth surface of the gear ring, and a sliding rod that is slidably sleeved on the sliding block through a return spring. The roller is installed at the distal end of the sliding rod, and a distance sensor for measuring the real-time moving distance of the sliding rod is installed on the sliding block. The adjustment mechanism includes two obliquely extending plates that are symmetrically arranged on both sides of the vertical diameter of the gear ring and whose angles can be adjusted by a power mechanism. The two sliding blocks are respectively slidably installed on the obliquely extending plates. The present invention improves the detection accuracy of the outer gear ring of the dual-mass flywheel.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and particularly to a production detection device for the outer gear ring of a dual-mass flywheel. Background Art

[0002] The detection of the gear ring includes, but is not limited to, the detection of tooth height, tooth pitch, number of teeth, and roundness of the gear ring, etc. To ensure the quality of the finished product, it is necessary to ensure that the errors of tooth height and tooth pitch are within a reasonable range. At present, the detection accuracy of some devices on the market for detecting the tooth height error and tooth pitch error of each tooth of the gear ring is not high.

[0003] For example, in the patent "A Detection Device and Detection Method for a Gear Ring (CN110487232A)", it can detect the tooth height of each tooth and the time taken to rotate a tooth pitch at the same speed through the setting of a detection mechanism, and then calculate the error degree of the tooth pitch. However, the errors of the two tooth surfaces a1 and a2 of the wedge-shaped teeth caused by the action of the roller are not reflected in the above process, and due to the fixed angle of the roller relative to the tooth surface, the detection accuracy is not high during the rotation process. Summary of the Invention

[0004] Therefore, the present invention provides a production detection device for the outer gear ring of a dual-mass flywheel to solve the above-mentioned defects in the prior art.

[0005] A production detection device for the outer gear ring of a dual-mass flywheel includes:

[0006] A mounting rack;

[0007] A clamping mechanism, which is installed on the mounting rack and is used to expand and tighten the inner wall of the gear ring of the dual-mass flywheel from the inside;

[0008] Two sets of detection mechanisms, each set of detection mechanisms includes a sliding block, a roller that slides along the tooth surface of the gear ring, and a sliding rod that is slidably sleeved on the sliding block through a return spring. The roller is installed at the distal end of the sliding rod, and a distance sensor for measuring the real-time moving distance of the sliding rod is installed on the sliding block;

[0009] An adjusting mechanism, which includes two obliquely extending plates symmetrically arranged on both sides of the vertical diameter of the gear ring and whose angles can be adjusted by a power mechanism. The two sliding blocks are respectively slidably installed on the obliquely extending plates.

[0010] Preferably, the power mechanism includes a support frame installed on the mounting frame, a chord rail horizontally installed on the support frame, and a radial rail perpendicularly installed to the chord rail. The projection of the chord rail on the plane where the gear ring is located does not pass through the center of the gear ring, and the projection of the radial rail on the plane where the gear ring is located vertically passes through the center of the gear ring. A support slider driven by a jacking cylinder to move up and down is vertically and slidably installed on the radial rail. The bottom ends of the two obliquely extending plates are hingedly installed on the support slider, and guide wheels capable of sliding along the chord rail are installed on the plates of the obliquely extending plates at the same distance from their bottom ends.

[0011] Preferably, the clamping mechanism includes a chuck installed on the mounting frame and driven by a motor to rotate, and side support plates capable of laterally supporting the inner wall of the gear ring are installed on each jaw of the chuck.

[0012] Preferably, the detection mechanism further includes a distance measuring groove provided on the sliding block. The depth direction of the distance measuring groove is parallel to the sliding rod. A guiding hole for penetrating the sliding rod is provided at one end of the distance measuring groove close to the sliding rod. The distance sensor is provided on the groove wall of the distance measuring groove far from the sliding rod, and the distance sensor is used to measure the distance between the distance sensor and the proximal end of the sliding rod.

[0013] Preferably, a wheel seat for sleeving the roller is installed at the distal end of the sliding rod. The wheel seat and the sliding block are connected by a guiding rod arranged for relative sliding, and the return spring is connected between the sliding block and the wheel seat.

[0014] Preferably, a guiding rail for guiding the sliding of the sliding block is provided at the upper end of the obliquely extending plate. A threaded sleeve is provided at the distal end of the sliding block, and a threaded rod is fitted and installed inside the threaded sleeve. The threaded rod is driven to rotate by a turntable.

[0015] The present invention has the following advantages:

[0016] Through the cooperation among the clamping mechanism, the detection mechanism and the adjustment mechanism, the present invention can, through the adjustment of the adjustment mechanism, make the rollers of the two detection mechanisms have the same angle of contact with the tooth surface and have a larger contact surface in the horizontal direction after angle adjustment. By comparing the time when the rollers pass through the tooth surfaces of two teeth of the gear ring in different rotation states, while judging the tooth height error and tooth pitch error, the tooth surface error is also judged, improving the detection accuracy compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of the structure of the present invention from another perspective;

[0019] Figure 3 Structural schematic diagram of part A in the present invention Figure 2 in the present invention;

[0020] Figure 4 Partial sectional structural schematic diagram of the detection mechanism of the present invention;

[0021] Figure 5 Schematic diagram of the detection result of the detection mechanism of the present invention for the counterclockwise rotating gear ring;

[0022] Figure 6 Schematic diagram of the detection result of the detection mechanism of the present invention for the clockwise rotating gear ring.

[0023] In the figure:

[0024] 1 - clamping mechanism; 2 - detection mechanism; 3 - adjustment mechanism; 5 - mounting bracket; 10 - gear ring;

[0025] 101 - side support plate; 102 - motor; 103 - chuck; 104 - jaw;

[0026] 201 - sliding block; 202 - slide bar; 203 - return spring; 204 - roller; 205 - ranging groove; 206 - distance sensor; 207 - guide hole; 208 - wheel seat; 209 - guide rod; 210 - guide rail; 211 - threaded rod; 212 - turntable;

[0027] 301 - chord rail; 302 - radial rail; 303 - obliquely extending plate; 304 - support frame; 305 - support slider; 306 - guide wheel; 307 - extending cylinder. Specific embodiments

[0028] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] As Figures 1 to 6 shown, the present invention provides a production detection device for the outer gear ring of a dual-mass flywheel, including a clamping mechanism 1, a detection mechanism 2 and an adjustment mechanism 3.

[0030] Among them, the clamping mechanism 1 is installed on the mounting bracket 5 and is used to tighten the inner wall of the gear ring 10 of the dual-mass flywheel from the inside. Specifically:

[0031] The clamping mechanism 1 includes a chuck 103 driven by a motor 102 and installed on the mounting bracket 5, and side support plates 101 capable of laterally supporting the inner wall of the gear ring 10 are installed on each jaw of the chuck 103.

[0032] Among them, there are two sets of detection mechanisms 2. Each set of detection mechanism 2 includes a sliding block 201, a roller 204 that slides along the tooth surface of the gear ring 10, and a sliding rod 202 that is slidably sleeved on the sliding block 201 through a return spring 203. The roller 204 is installed at the distal end of the sliding rod 202. A wheel seat 208 for sleeving the roller 204 is installed at the distal end of the sliding rod 202. The wheel seat 208 is connected to the sliding block 201 through a guiding rod 209 arranged for relative sliding. The return spring 203 is connected between the sliding block 201 and the wheel seat 208.

[0033] A distance sensor 206 for measuring the real-time moving distance of the sliding rod 202 is installed on the sliding block 201.

[0034] Specifically:

[0035] The detection mechanism 2 further includes a ranging groove 205 arranged on the sliding block 201. The groove depth direction of the ranging groove 205 is parallel to the sliding rod 202. A guiding hole 207 for penetrating the sliding rod 202 is arranged at one end of the ranging groove 205 close to the sliding rod 202. The distance sensor 206 is arranged on the side groove wall of the ranging groove 205 far from the sliding rod 202. The distance sensor 206 is used to measure the distance between the distance sensor 206 and the proximal end of the sliding rod 202.

[0036] Among them, the adjusting mechanism 3 includes two obliquely extending plates 303 symmetrically arranged on both vertical diametrical sides of the gear ring 10 and whose angles can be adjusted by a power mechanism. Specifically:

[0037] The power mechanism includes a support frame 304 installed on the mounting frame 5, a chord rail 301 horizontally installed on the support frame 304, and a radial rail 302 vertically installed perpendicular to the chord rail 301. The projection of the chord rail 301 on the plane where the gear ring 10 is located does not pass through the center part of the gear ring 10. The projection of the radial rail 302 on the plane where the gear ring 10 is located vertically passes through the center part of the gear ring 10. A support slider 305 driven by a jacking cylinder 307 to lift and lower is vertically slidably installed on the radial rail 302. The bottom ends of the two obliquely extending plates 303 are hingedly installed on the support slider 305. Guide wheels 306 that can slide along the chord rail 301 are installed on the plate surfaces of the two obliquely extending plates 303 at the same distance from their bottom ends.

[0038] The two sliding blocks 201 are respectively slidably installed on the obliquely extending plates 303. A guiding rail 210 for guiding the sliding of the sliding block 201 is arranged at the upper end of the obliquely extending plate 303. A threaded sleeve (not shown in the figure) is arranged at the distal end of the sliding block 201. A threaded rod 211 is fitted and installed inside the threaded sleeve. The threaded rod 211 is driven to rotate by a turntable 212.

[0039] The detection process of the device of the present invention includes the following steps:

[0040] I. Fixing the gear ring: Put the gear ring 10 on the outside of each side support plate 101, and start the chuck 103. When the jaws of the chuck 103 extend outwards, the inner ring of the gear ring 10 is tightened.

[0041] II. Adjusting the angle and state of the detection mechanism:

[0042] Start the top extension cylinder 307. The top extension cylinder 307 drives the support slider 305 to slide along the radial rail 302, so that the two obliquely extending plates 303 hinged and installed on the support slider 305 and limitedly slidingly connected to the chord rail 301 at the far end synchronously adjust the angle with the radial rail 302 as the symmetry axis. Thus, the detection mechanism 2 installed at the far end of the obliquely extending plate 303 also adjusts the angle accordingly, and the relative angle between the roller 204 thereon and the tooth surfaces a1 and a2 of the gear teeth of the gear ring 10 changes. Try to increase the included angle formed between the sliding direction of the sliding block 201 and the tooth surface.

[0043] After that, adjust the turntable 212 so that one roller 204 of the two detection mechanisms 2 contacts the gear teeth on the surface of the gear ring 10, and the other is away from the gear ring. After completing the detection of the gear ring 10 rotating one week in one direction, alternate the contact situations of the rollers 204 of the two detection mechanisms 2 with the gear ring 10, and drive the gear ring to rotate one week in the other direction for detection.

[0044] III. Detection:

[0045] Drive the motor 102 to rotate to drive the chuck 103 to rotate, so that the gear ring 10 tightened and fixed by the chuck 103 also rotates accordingly. Control the rotation speed of the motor 102 so that the motor 102 drives the gear ring 10 to rotate at a low speed. During the rotation of the gear ring 10, the passing gear teeth will push up the slide bar 202 connected to the roller 204.

[0046] Driving the motor 102 to rotate the gear ring 10 one week is one detection process. During the detection process, the distance sensor 206 records data in real time. Record a signal period for each tooth passed, and analyze the tooth height error, tooth pitch error, and tooth surface error of the gear ring 10 by comparing the motion trajectory information of each period and the time of each period.

[0047] Combined with Figure 5 and Figure 6As shown, when the roller 204 rises to the highest point, it is at the top of the tooth, and when the roller 204 descends to the lowest point, it falls into the tooth groove. Record the height difference between the two, which is the tooth height (H). Recording the tooth height of each tooth can measure the tooth height error. At the same time, a continuous rise and fall is a cycle. Record the total time for the gear ring to rotate one circle. The total time divided by the number of cycles is the number of teeth. At the same time, record the time (t1) used for each cycle. The time difference between different cycles is the tooth pitch error. At the same time, it can also record that when the gear ring 10 rotates counterclockwise, Figure 2 the time t2 used by the right roller 204 shown in passing through the a2 surface, and when the gear ring 10 rotates clockwise, Figure 3 the time t3 used by the left roller 204 shown in passing through the a1 surface. Due to the adjustment of the adjustment mechanism 3, both rollers 204 have the same angle of contact with the tooth surface and a larger contact surface in the horizontal direction after angle adjustment. The tooth surface errors of a1 and a2 can be judged by comparing t2 and t3, and the detection accuracy is improved compared with the prior art.

[0048] Through the cooperation among the clamping mechanism 1, the detection mechanism 2 and the adjustment mechanism 3 of the present invention, through the adjustment of the adjustment mechanism 3, both rollers 204 of the two detection mechanisms 2 have the same angle of contact with the tooth surface and a larger contact surface in the horizontal direction after angle adjustment. By comparing the tooth surface times of the two teeth of the gear ring 10 in different rotation states when the roller 204 passes through, while judging the tooth height error and the tooth pitch error, the tooth surface error is judged, and the detection accuracy is improved compared with the prior art.

[0049] Although the present invention has been described in detail with general descriptions and specific embodiments above, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. A dual-mass flywheel outer ring gear production and testing device, characterized by: It includes a mounting bracket (5); a clamping mechanism (1), which includes being mounted on the mounting bracket (5) and used for tightening the inner wall of the ring gear (10) of the dual-mass flywheel from the inside; a detection mechanism (2), which is divided into two groups. Each group of the detection mechanism (2) includes a sliding block (201), a roller (204) sliding along the tooth surface of the ring gear (10), and a sliding rod (202) slidably sleeved on the sliding block (201) through a return spring (203). The roller (204) is mounted at the distal end of the sliding rod (202). A distance sensor (206) for measuring the real-time moving distance of the sliding rod (202) is mounted on the sliding block (201); an adjusting mechanism (3), which includes two obliquely extending plates (303) symmetrically arranged on both sides of the vertical diameter of the ring gear (10) and whose angles can be adjusted by a power mechanism. The two sliding blocks (201) are respectively slidably mounted on the obliquely extending plates (303); the power mechanism includes a support frame (304) mounted on the mounting bracket (5), a chord rail (301) horizontally mounted on the support frame (304), and a radial rail (302) perpendicularly mounted to the chord rail (301). The projection of the chord rail (301) on the plane where the ring gear (10) is located does not pass through the center part of the ring gear (10). The projection of the radial rail (302) on the plane where the ring gear (10) is located vertically passes through the center part of the ring gear (10). A support slider (305) driven to lift by a jacking cylinder (307) is vertically slidably mounted on the radial rail (302). The bottom ends of the two obliquely extending plates (303) are hinged and mounted on the support slider (305). Guide wheels (306) capable of sliding along the chord rail (301) are mounted on the plate surfaces of the obliquely extending plates (303) at the same distance from their bottom ends; the detection mechanism (2) further includes a ranging groove (205) provided on the sliding block (201). The groove depth direction of the ranging groove (205) is parallel to the sliding rod (202). A guide hole (207) for penetrating the sliding rod (202) is provided at one end of the ranging groove (205) close to the sliding rod (202). The distance sensor (206) is arranged on the side wall of the ranging groove (205) far from the sliding rod (202). The distance sensor (206) is used for measuring the distance between the distance sensor (206) and the proximal end of the sliding rod (202); a wheel seat (208) for sleeving the roller (204) is mounted at the distal end of the sliding rod (202). The wheel seat (208) is connected to the sliding block (201) through a guiding rod (209) arranged for relative sliding. The return spring (203) is connected between the sliding block (201) and the wheel seat (208).

2. The production inspection device for the outer gear ring of a dual-mass flywheel according to claim 1, wherein: The clamping mechanism (1) includes a chuck (103) driven to rotate by a motor (102) and mounted on the mounting bracket (5). Side support plates (101) capable of laterally supporting the inner wall of the ring gear (10) are mounted on each clamping jaw of the chuck (103).

3. The production inspection device for the outer gear ring of a dual-mass flywheel according to claim 1, characterized in that: The upper end of the obliquely extending plate (303) is provided with a guide rail (210) for guiding the sliding of the sliding block (201); the distal end of the sliding block (201) is provided with a threaded sleeve, the interior of which is fitted with a threaded rod (211); the threaded rod (211) is driven to rotate by a turntable (212).

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