Hole opening detection device for automobile cast iron flywheel

Abstract

The utility model discloses a trepanning detection device for an automobile cast iron flywheel, which relates to the technical field of trepanning detection and comprises a working table and a supporting seat which is fixedly arranged on the working table and used for placing the cast iron flywheel, and clamping mechanisms are symmetrically and fixedly arranged on the supporting seat. The clamping mechanism comprises a first supporting frame fixedly arranged on the supporting base and a limiting plate which is arranged on the first supporting frame in a sliding mode and can move up and down in the vertical direction of the first supporting frame, and a detection mechanism used for detecting the diameter and flatness of a cast iron flywheel hole is fixedly arranged on the workbench. According to the cast iron flywheel hole detection device, the hole of the cast iron flywheel is detected, the diameter and flatness of the hole are measured through the detection mechanism, it is ensured that parameters meet preset quality standards, manual intervention is reduced through the automatic detection process, the detection speed is increased, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hole detection, in particular to a hole detection device for automobile cast iron flywheels. Background Art

[0002] The cast iron flywheel is one of the important components of the engine. It has the function of storing and releasing energy. It can absorb and release the energy generated when the engine is working, reduce the vibration of the engine, and ensure the smooth operation of the engine. After the cast iron flywheel is processed, its aperture is detected by rotating it in the center hole through a measuring mechanism.

[0003] Patent publication number CN212512970U describes a device for detecting apertures in automotive parts. This device automatically detects and displays apertures, facilitating daily operations and improving the efficiency of aperture detection. Furthermore, an internal flatness detection mechanism performs rotational flatness detection on the inner circumference of the aperture, facilitating aperture detection and improving the device's functionality.

[0004] However, the aforementioned detection device fails to effectively secure the flywheel and detection device during use. This results in the need for manual gripping of the flywheel and detection device to maintain stability during the test process, which not only increases operator workload but also reduces test efficiency. Furthermore, since manual gripping cannot guarantee long-term stability and accuracy, test results are often affected by human factors. Utility Model Content

[0005] The purpose of the utility model is to provide a hole detection device for automobile cast iron flywheels, so as to solve the problem that the flywheel and the detection device need to be manually held to keep them stable, which reduces the detection stability and accuracy.

[0006] A hole detection device for an automotive cast iron flywheel comprises a workbench and a support seat fixed on the workbench for placing the cast iron flywheel, a clamping mechanism symmetrically fixed on the support seat, the clamping mechanism comprising a first support frame fixed on the support seat and a limit plate slidably arranged on the first support frame and movable up and down along the vertical direction of the first support frame, a detection mechanism fixed on the workbench for detecting the diameter and flatness of the cast iron flywheel opening, and a driving mechanism for driving the cast iron flywheel to rotate is provided on the support seat.

[0007] Preferably, the clamping mechanism includes a first sliding groove opened on the side of the first support frame for the limiting plate to slide, the slider is fixed on the surface of the limiting plate, a screw is slid through the first support frame, the slider is threadedly sleeved on the screw, and a rotating handle is fixed on the top surface of the screw.

[0008] Preferably, the detection mechanism includes a second support frame fixedly arranged on the upper surface of the workbench, a hydraulic rod is fixedly provided on the top of the second support frame, the output end of the hydraulic rod is fixedly connected to a connecting plate, avoidance grooves are symmetrically provided in the connecting plate, a sliding block is slidingly provided in the avoidance groove, and a second sliding groove for the sliding block to slide is provided on the side wall of the avoidance groove, a spring is fixedly connected between the avoidance groove and the sliding block, an indicator rod is fixedly provided on the bottom surface of the sliding block, the indicator rod is in contact with the inner wall of the flywheel, a pointer is fixedly provided on the top surface of the sliding block, and a scale line used in conjunction with the pointer is provided on the side of the connecting plate.

[0009] Preferably, the driving mechanism includes a placement table rotatably arranged on the upper surface of the support seat, a gear ring is fixedly provided on the circumferential surface of the placement table, a driving motor is fixedly provided on the upper surface of the workbench, and a gear meshing with the gear ring is fixedly provided on the top end of the output shaft of the driving motor.

[0010] Preferably, a pressure sensor fixedly connected to the spring and used for detecting the pressure applied to the spring is fixedly provided on the side wall of the avoidance groove.

[0011] The advantages of the present invention are: the present invention is a hole detection device for automobile cast iron flywheel, which detects the hole of the cast iron flywheel by setting a detection mechanism, and uses the detection mechanism to measure the diameter and flatness of the hole to ensure that these parameters meet the predetermined quality standards. The automated detection process reduces manual intervention, improves the detection speed, and thus improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 .

[0013] Figure 2 It is a three-dimensional structural diagram of the driving mechanism of the utility model.

[0014] Figure 3 It is a three-dimensional structural diagram of the clamping mechanism of the utility model.

[0015] Figure 4 It is a three-dimensional structural diagram of the detection mechanism of the utility model.

[0016] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the detection mechanism of the utility model.

[0017] Among them, 100, workbench; 101, support seat; 200, clamping mechanism; 201, first support frame; 202, first slide groove; 203, slider; 204, limit plate; 205, screw; 206, turning handle; 207, ball; 300, detection mechanism; 301, second support frame; 302, hydraulic rod; 303, connecting plate; 304, avoidance groove; 305, second slide groove; 306, sliding block; 307, spring; 308, indicator rod; 309, pointer; 310, scale line; 311, pressure sensor; 400, driving mechanism; 401, driving motor; 402, gear; 403, placement table; 404, gear ring. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figures 1 to 5 As shown, a hole detection device for an automobile cast iron flywheel comprises a workbench 100 and a support base 101 fixed on the workbench 100 for placing the cast iron flywheel, a clamping mechanism 200 is symmetrically fixed on the support base 101, and the clamping mechanism 200 comprises a first support frame 201 fixed on the support base 101 and a limit plate 204 slidably arranged on the first support frame 201 and movable up and down along the vertical direction of the first support frame 201, a detection mechanism 300 for detecting the diameter and flatness of the cast iron flywheel hole is fixed on the workbench 100, and a driving mechanism 400 for driving the cast iron flywheel to rotate is provided on the support base 101.

[0020] In this embodiment, the clamping mechanism 200 includes a first sliding groove 202 opened on the side of the first support frame 201 for the limiting plate 204 to slide, the slider 203 is fixed on the surface of the limiting plate 204, a screw 205 is slidingly passed through the first support frame 201, the slider 203 is threadedly sleeved on the screw 205, and a rotating handle 206 is fixed on the top surface of the screw 205.

[0021] Place the automobile cast iron flywheel on the support base 101 of the workbench 100 and position it preliminarily. Hold the rotating handle 206 and drive the slider 203 to slide up and down in the first slide groove 202 by rotating the screw 205. Keep adjusting until the limit plate 204 fits tightly against both sides of the cast iron flywheel to firmly clamp it. When the limit plate 204 is adjusted to the appropriate position, continue to rotate the rotating handle 206 and use the threaded connection between the screw 205 and the slider 203 to further lock the limit plate 204 to ensure that the cast iron flywheel will not move during the inspection process. Start the inspection mechanism 300 and inspect the diameter and flatness of the opening of the cast iron flywheel to ensure that the cast iron flywheel will not move or shake during the inspection process, thereby improving the accuracy of the inspection.

[0022] In this embodiment, the detection mechanism 300 includes a second support frame 301 fixed on the upper surface of the workbench 100, and a hydraulic rod 302 is fixed on the top of the second support frame 301, and the output end of the hydraulic rod 302 is fixedly connected to a connecting plate 303, and avoidance grooves 304 are symmetrically opened in the connecting plate 303, and a sliding block 306 is slidingly provided in the avoidance groove 304, and a second sliding groove 305 for the sliding block 306 to slide is opened on the side wall of the avoidance groove 304, and a spring 307 is fixedly connected between the avoidance groove 304 and the sliding block 306, and an indicator rod 308 is fixed on the bottom surface of the sliding block 306, and the indicator rod 308 is in contact with the inner wall of the flywheel, and a pointer 309 is fixed on the top surface of the sliding block 306, and a scale line 310 used in conjunction with the pointer 309 is provided on the side of the connecting plate 303.

[0023] During the test, the hydraulic rod 302 is activated to shorten, driving the connecting plate 303 and its accessories to move toward the flywheel. As the connecting plate 303 descends, the indicator rod 308 gradually approaches the inner wall of the flywheel. When the indicator rod 308 contacts the inner wall of the flywheel opening, due to possible unevenness or diameter changes of the flywheel opening, the sliding block 306 will slide along the second sliding groove 305 in the avoidance groove 304, and the spring 307 will deform at the same time. The sliding distance of the sliding block 306 or the degree of deformation of the spring 307 can be recorded, thereby indirectly reflecting the diameter and flatness of the flywheel opening. The movement of the sliding block 306 drives the pointer 309 fixed on its top surface to move together. When the indicator rod 308 on the sliding block 306 When the sliding block 306 moves to the position in contact with the opening of the cast iron flywheel, the movement of the sliding block 306 will stop or be hindered due to the influence of the diameter of the opening. At this time, the pointer 309 will stop at a certain position of the scale line 310 on the side of the connecting plate 303. The value on the scale line 310 indicated by the pointer 309 is observed and recorded. The value is the diameter data of the opening of the cast iron flywheel. By using the pointer 309 and the scale line 310 in conjunction with each other, the diameter data of the opening of the cast iron flywheel can be read intuitively without complicated calculations or conversions.

[0024] In this embodiment, the driving mechanism 400 includes a placement table 403 rotatably arranged on the upper surface of the support base 101, a gear ring 404 is fixedly provided on the circumferential surface of the placement table 403, a driving motor 401 is fixedly provided on the upper surface of the workbench 100, and a gear 402 meshing with the gear ring 404 is fixedly provided on the top of the output shaft of the driving motor 401.

[0025] Start the drive motor 401, and its output shaft drives the gear 402 to rotate. The gear 402 engages with the gear ring 404, thereby driving the placement table 403 and the flywheel thereon to rotate. As the placement table 403 rotates, the opening part of the flywheel passes through the indicator rod 308 of the detection mechanism 300 in turn. The indicator rod 308 contacts the inner wall of the flywheel opening, and drives the pointer 309 to move on the scale line 310 through the sliding block 306 to record the diameter data at different positions. If it is necessary to detect the entire opening circumference of the flywheel, the drive motor 401 will continue to rotate until the entire circumference flatness detection is completed. According to the size and shape of the cast iron flywheel, adjust the limit plate 204 in the clamping mechanism 200 so that the ball 207 on its bottom contacts the cast iron flywheel and is slightly pressed, ensuring that the ball 207 can roll freely as the cast iron flywheel rotates, while providing the necessary clamping force to prevent the flywheel from moving, thereby reducing the friction between the flywheel and the placement table 403 when it rotates.

[0026] In this embodiment, a pressure sensor 311 fixedly connected to the spring 307 and used to detect the pressure applied to the spring 307 is fixedly provided on the side wall of the avoidance groove 304 .

[0027] The compression of the spring 307 causes it to contact the pressure sensor 311 fixed on the side wall of the avoidance groove 304 and transmit a pressure signal. During the rotation of the flywheel, if the reading of the pressure sensor 311 changes, it means that the surface of the flywheel opening is uneven.

[0028] Working process and principle: When using this device, place the automobile cast iron flywheel in the support seat 101 on the workbench 100, hold the rotating handle 206, and drive the slider 203 to slide up and down in the first slide groove 202 by rotating the screw 205. Continuously adjust until the limit plate 204 fits tightly against both sides of the cast iron flywheel to play a role of firm clamping. During testing, start the hydraulic rod 302 to make it begin to shorten, driving the connecting plate 303 and its accessories to move toward the flywheel. As the connecting plate 303 descends, the indicator rod 308 gradually approaches the inner wall of the flywheel. When the indicator rod 308 contacts the inner wall of the flywheel opening, due to possible unevenness or diameter changes of the flywheel opening, the sliding block 306 will slide along the second sliding groove 305 in the avoidance groove 304, and at the same time the spring 307 will deform. The movement of the sliding block 306 drives the pointer 309 fixed on its top surface to move together. When the indicator rod 308 on the sliding block 306 moves to the position of contact with the cast iron flywheel opening, due to the influence of the opening diameter, the movement of the sliding block 306 will stop or be hindered. At this time, the pointer 309 will stay at a certain position of the scale line 310 on the side of the connecting plate 303. Observe and record the value on the scale line 310 indicated by the pointer 309. This value is the diameter data of the cast iron flywheel opening.

[0029] It is understood from common technical knowledge that the present invention may be implemented through other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. A hole detection device for automotive cast iron flywheels, characterized by: The invention comprises a workbench (100) and a support base (101) fixed on the workbench (100) for placing a cast iron flywheel, wherein a clamping mechanism (200) is symmetrically fixed on the support base (101), and the clamping mechanism (200) comprises a first support frame (201) fixed on the support base (101) and a limit plate (204) slidably arranged on the first support frame (201) and movable up and down along the vertical direction of the first support frame (201), a detection mechanism (300) for detecting the diameter and flatness of the cast iron flywheel opening is fixed on the workbench (100), and a driving mechanism (400) for driving the cast iron flywheel to rotate is provided on the support base (101).

2. The hole detection device for automobile cast iron flywheel according to claim 1, characterized in that: The clamping mechanism (200) comprises a first sliding groove (202) provided on the side of a first support frame (201) for sliding a limiting plate (204); a slider (203) is fixedly arranged on the surface of the limiting plate (204); a screw rod (205) is slidably passed through the first support frame (201); the slider (203) is threadedly sleeved on the screw rod (205); and a rotating handle (206) is fixedly arranged on the top surface of the screw rod (205).

3. The hole detection device for automobile cast iron flywheel according to claim 1, characterized in that: The detection mechanism (300) comprises a second support frame (301) fixedly arranged on the upper surface of the workbench (100), a hydraulic rod (302) fixedly arranged on the top of the second support frame (301), an output end of the hydraulic rod (302) fixedly connected to a connecting plate (303), a symmetrical avoidance groove (304) is provided in the connecting plate (303), a sliding block (306) is slidably provided in the avoidance groove (304), and a side wall of the avoidance groove (304) is provided with a The sliding block (306) slides in a second sliding groove (305), the avoidance groove (304) and the sliding block (306) are fixedly connected with a spring (307), the bottom surface of the sliding block (306) is fixedly provided with an indicator rod (308), the indicator rod (308) contacts the inner side wall of the flywheel, the top surface of the sliding block (306) is fixedly provided with a pointer (309), and the side surface of the connecting plate (303) is provided with a scale line (310) used in conjunction with the pointer (309).

4. The hole detection device for automobile cast iron flywheel according to claim 1, characterized in that: The driving mechanism (400) comprises a placing table (403) rotatably arranged on the upper surface of the supporting seat (101), a gear ring (404) being fixedly provided on the circumferential surface of the placing table (403), a driving motor (401) being fixedly provided on the upper surface of the working table (100), and a gear (402) meshing with the gear ring (404) being fixedly provided on the top end of the output shaft of the driving motor (401).

5. The hole detection device for automobile cast iron flywheel according to claim 3, characterized in that: A pressure sensor (311) fixedly connected to the spring (307) and used for detecting the pressure applied to the spring (307) is fixedly provided on the side wall of the avoidance groove (304).

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