Ultrasonic flaw detection device for automobile bearing crack detection

Abstract

The utility model relates to the technical field of automobile part processing, and discloses an ultrasonic flaw detection device for automobile bearing crack detection, which comprises a base, a rotating table is fixed at the top of a driving belt wheel, two sides of the upper end surface of the rotating table are symmetrically connected with propping frames in a sliding manner, the inner sides of the propping frames are movably connected with rotating plates, and the rotating plates are movably connected with the driving belt wheel. A second supporting frame is fixed to the other side of the upper end face of the base, a second compression spring is fixed to the inner top of the second supporting frame, a movable frame is fixed to the bottom of the second compression spring, a supporting rod penetrates through the movable frame, and an ultrasonic flaw detector is fixed to one end of the supporting rod. According to the ultrasonic flaw detection device for automobile bearing crack detection, after an automobile bearing is clamped and fixed and positioning treatment of an ultrasonic flaw detector is completed, a driving belt wheel, a belt and a driven belt wheel operate, a rotating table and an extrusion table rotate at the same time, and the ultrasonic flaw detector moves up and down back and forth while the automobile bearing rotates by 360 degrees; and comprehensive detection of the automobile bearing is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to an ultrasonic flaw detector for detecting cracks in automobile bearings. Background Art

[0002] The main function of automobile wheel hub bearings is to bear weight and provide precise guidance for the rotation of the wheel hub. It bears both axial loads and radial loads and is a very important component. Traditional automobile wheel bearings are composed of two sets of tapered roller bearings or ball bearings. The installation, oiling, sealing and clearance adjustment of the bearings are all carried out on the automobile production line. In order to detect cracks on automobile bearings, an ultrasonic flaw detector is required. The ultrasonic flaw detector can use ultrasonic waves to non-destructively check internal defects and scars of the bearings.

[0003] Existing ultrasonic flaw detection devices generally need to be used handheld. When detecting cracks in automobile bearings, the detection effect is not comprehensive and efficient enough, and the efficiency of manual detection is low. During the bearing detection process, the inner and outer rings of the bearings are prone to relative rotation, and the locking effect is poor, which will affect the comprehensiveness of the detection. In view of the above problems, it is necessary to improve the existing equipment. Utility Model Content

[0004] The purpose of the utility model is to provide an ultrasonic flaw detection device for detecting cracks in automobile bearings, so as to solve the problem that the existing ultrasonic flaw detection device proposed in the above background technology generally needs to be used by hand, and when detecting cracks in automobile bearings, the detection effect is not comprehensive and efficient enough, the manual detection efficiency is low, and in the process of detecting bearings, the inner and outer rings of the bearings are easy to rotate relative to each other, and the locking effect is poor, which affects the comprehensiveness of the detection.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasonic flaw detection device for detecting cracks in automobile bearings, comprising a base, a first support frame and a clamping, fixing and comprehensive detection mechanism are fixed to one side of the upper end surface of the base, the clamping, fixing and comprehensive detection mechanism comprises a motor, the top of the motor is connected to the driving pulley, a rotating table is fixed to the top of the driving pulley, support frames are symmetrically and slidably connected to both sides of the upper end surface of the rotating table, and a rotating plate is movably connected to the inner side of the support frame.

[0006] A second support frame is fixed to the other side of the upper end surface of the base, a second compression spring is fixed to the inner top of the second support frame, a movable frame is fixed to the bottom of the second compression spring, a support rod passes through the movable frame, and an ultrasonic flaw detector is fixed to one end of the support rod.

[0007] Preferably, a lead screw is rotatably connected to the rotating table, and a knob is fixed to one end of the lead screw, and the outer side of the lead screw is threadedly connected to two support frames.

[0008] By adopting the above technical solution, when the lead screw rotates, the two support frames move closer to or farther away from each other, which makes it convenient to clamp or release the automobile bearing.

[0009] Preferably, sliding grooves are symmetrically provided on two inner walls of the supporting frame, and a rotating plate is movably connected in the sliding groove.

[0010] By adopting the above technical solution, the slide groove plays a role of limiting the rotating plate during the process of pulling out the rotating plate.

[0011] Preferably, friction strips are fixed to the outer end surface of the rotating plate, and the friction strips are distributed on the rotating plate at equal intervals.

[0012] By adopting the above technical solution, after the rotating plate is rotated and placed on the automobile bearing, the friction strip can play a role in strengthening the connection, and then the inner and outer rings of the automobile bearing can move as a whole.

[0013] Preferably, the other side of the upper end surface of the base is rotatably connected to a driven pulley via a rotating shaft, belts are wound around the outer sides of the driving pulley and the driven pulley, and an extrusion platform is fixed on the top of the driven pulley.

[0014] By adopting the above technical solution, when the driving pulley rotates, the belt and the driven pulley can be driven to rotate, thereby driving the extrusion table to rotate.

[0015] Preferably, grooves are symmetrically provided in both side walls of the support frame, and a first compression spring is fixed in the groove, a support plate is fixed at one end of the first compression spring, and the support plate is slidably connected to the support frame.

[0016] By adopting the above technical solution, when the supporting frame is used to support and fix the automobile bearing, the supporting plate is squeezed by the automobile bearing to move and tightly fix the rotating plate.

[0017] Preferably, a limiting column is fixed on the top of the movable frame, and the limiting column passes through the second supporting frame.

[0018] By adopting the above technical solution, the limiting column plays a limiting role in the process of the movable frame moving up and down.

[0019] Preferably, rollers are fixed to the bottom of the movable frame, and the rollers are placed on the movable frame.

[0020] By adopting the above technical solution, the extrusion platform can squeeze the movable frame to move up and down when it rotates, and the roller can reduce the friction between the movable frame and the extrusion platform.

[0021] Preferably, the support rod is fixed to the movable frame by fasteners.

[0022] By adopting the above technical solution, the fastener can be used to tighten and fix the support rod.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. The ultrasonic flaw detector for crack detection of automobile bearings can achieve the purpose of comprehensive detection through the coordinated use of the driving pulley, rotating table, belt, driven pulley, extrusion table and ultrasonic flaw detector. After the automobile bearing is clamped and the ultrasonic flaw detector is positioned, the driving pulley, belt and driven pulley are operated, the rotating table and the extrusion table rotate at the same time, and the automobile bearing rotates 360 degrees while the ultrasonic flaw detector moves up and down, which is convenient for comprehensive detection of the automobile bearing.

[0025] 2. The ultrasonic flaw detection device for crack detection of automobile bearings can achieve the purpose of clamping and locking through the coordinated use of the rotating table, screw, support frame, rotating plate, friction strip and support plate. After placing the automobile bearing on the rotating table, the rotating plate is lifted and rotated and placed on the material. The friction strip can increase friction and strengthen the connection to prevent the inner and outer rings of the automobile bearing from rotating relative to each other. Then, the screw is rotated, and the two support frames move away from each other and clamp the automobile bearing tightly, and the support plate can lock the rotating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0027] Figure 2 This is a front view of the structure of the utility model;

[0028] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0029] Figure 4 It is a schematic diagram of the connection structure of the support frame, the slide groove, the rotating plate, the friction strip, the groove, the first compression spring and the support plate of the utility model;

[0030] Figure 5 It is a schematic diagram of the connection structure of the support frame, the slide groove, the rotating plate, the friction strip and the support plate of the utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the extrusion table of the utility model.

[0032] In the figure: 1. base; 2. first support frame; 3. clamping, fixing and comprehensive detection mechanism; 301. motor; 302. driving pulley; 303. rotating table; 304. lead screw; 305. knob; 306. support frame; 307. slide groove; 308. rotating plate; 309. friction strip; 310. groove; 311. first compression spring; 312. support plate; 313. belt; 314. driven pulley; 315. rotating shaft; 316. extrusion table; 4. second support frame; 5. second compression spring; 6. movable frame; 7. limit column; 8. roller; 9. support rod; 10. fastener; 11. ultrasonic flaw detector. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figures 1 to 6 The utility model provides a technical solution: an ultrasonic flaw detection device for crack detection of automobile bearings, comprising a base 1, a first support frame 2 and a clamping and fixing and comprehensive detection mechanism 3 are fixed to one side of the upper end surface of the base 1, the clamping and fixing and comprehensive detection mechanism 3 comprises a motor 301, the top of the motor 301 is connected to a driving pulley 302, a rotating table 303 is fixed to the top of the driving pulley 302, both sides of the upper end surface of the rotating table 303 are symmetrically slidably connected with a support frame 306, and the inner side of the support frame 306 is movably connected with a rotating plate 308.

[0035] A second support frame 4 is fixed to the other side of the upper end surface of the base 1, a second compression spring 5 is fixed to the inner top of the second support frame 4, a movable frame 6 is fixed to the bottom of the second compression spring 5, a support rod 9 passes through the movable frame 6, and an ultrasonic flaw detector 11 is fixed to one end of the support rod 9.

[0036] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, a lead screw 304 is rotatably connected to the rotating table 303, and a knob 305 is fixed at one end of the lead screw 304. The outer side of the lead screw 304 is threadedly connected to two support frames 306. When the lead screw 304 is rotated by holding the knob 305, the support frames 306 can slide under the limiting action of the lead screw 304 and the rotating table 303, and the two support frames 306 move closer to or away from each other, which is convenient for supporting and fixing or loosening the automobile bearing.

[0037] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, slide grooves 307 are symmetrically provided on the two inner walls of the support frame 306, and a rotating plate 308 is movably connected in the slide groove 307. The rotating plate 308 can slide up and down and rotate in the slide groove 307. The height of the rotating plate 308 can be adjusted according to the thickness of the automobile bearing. After the height of the rotating plate 308 is adjusted by pulling and pulling, the rotating plate 308 can be rotated and placed on the automobile bearing to facilitate fixing the inner and outer rings of the automobile bearing.

[0038] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a friction strip 309 is fixed to the outer end face of the rotating plate 308, and the friction strips 309 are evenly spaced on the rotating plate 308. After the rotating plate 308 is pulled out and rotated, the rotating plate 308 is placed on the automobile bearing. The friction strip 309 has a friction restraining effect on the inner and outer rings of the automobile bearing, thereby avoiding relative rotation of the inner and outer rings. The friction strips 309 with equal spacing make the fastening effect better.

[0039] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the other side of the upper end surface of the base 1 is rotatably connected to a driven pulley 314 through a rotating shaft 315, and a belt 313 is wound around the outer sides of the driving pulley 302 and the driven pulley 314. A pressing table 316 is fixed to the top of the driven pulley 314. The driving pulley 302 can rotate under the action of the motor 301, thereby driving the belt 313 to operate, thereby driving the driven pulley 314 to rotate. The rotation of the driven pulley 314 can drive the pressing table 316 to rotate, and the pressing table 316 has an extrusion effect on the movable frame 6. The second compression spring 5 has a supporting effect on the movable frame 6. Since the extrusion table 316 is a wavy structure, the extrusion table 316 can squeeze the movable frame 6 to move back and forth up and down.

[0040] In this embodiment, Figure 1 , Figure 2 and Figure 4 As shown, grooves 310 are symmetrically provided in the two side walls of the support frame 306, and a first compression spring 311 is fixed in the groove 310, a support plate 312 is fixed at one end of the first compression spring 311, and the support plate 312 is slidably connected to the support frame 306, and the first compression spring 311 supports the support plate 312. After adjusting the height of the rotating plate 308, the rotating plate 308 can be rotated and placed on the material, and then the support frame 306 can be used to support and fix the automobile bearing. The support plate 312 is finally squeezed and compressed into the support frame 306 and tightly fixes the rotating plate 308, thereby achieving a locking effect.

[0041] In this embodiment, Figure 1 and Figure 2 As shown, a limiting column 7 is fixed on the top of the movable frame 6, and the limiting column 7 passes through the second support frame 4. When the movable frame 6 moves up and down, the limiting column 7 moves up and down accordingly. The second support frame 4 limits the limiting column 7, so that the movable frame 6 moves up and down more smoothly.

[0042] In this embodiment, Figure 1 and Figure 2 As shown, a roller 8 is fixed to the bottom of the movable frame 6, and the roller 8 is placed on the movable frame 6. The movable frame 6 can be tightly attached to the extrusion platform 316 under the support of the second compression spring 5. When the extrusion platform 316 squeezes the movable frame 6 to move up and down, the roller 8 rolls on the extrusion platform 316, which is convenient for reducing the friction between the movable frame 6 and the extrusion platform 316, so that the movable frame 6 moves more smoothly.

[0043] In this embodiment, Figure 1 and Figure 2 As shown, the support rod 9 is fixed to the movable frame 6 by the fastener 10. The movable frame 6 supports and limits the support rod 9. The support rod 9 supports the ultrasonic flaw detector 11. The support rod 9 can move left and right to facilitate the positioning of the ultrasonic flaw detector 11. After completing the positioning operation of the ultrasonic flaw detector 11, the fastener 10 can be tightened to fix the support rod 9, and the ultrasonic flaw detector 11 can be locked.

[0044] The use method and advantages of the utility model: The ultrasonic flaw detection device for automobile bearing crack detection has the following working process:

[0045] like Figures 1 to 6As shown: first, place the automobile bearing on the rotating table 303 and place the automobile bearing sleeve on the outside of the two supporting frames 306, then manually pull the rotating plate 308 upwards and then rotate the rotating plate 308 to place it on the automobile bearing, the friction strip 309 can increase the friction between the inner and outer rings of the automobile bearing and the rotating plate 308 to prevent the inner and outer rings of the automobile bearing from rotating relative to each other, then hold the knob 305 and rotate the lead screw 304, the supporting frame 306 slides under the limiting action of the rotating table 303 and the lead screw 304, the two supporting frames 306 move away from each other and press against the inner wall of the automobile bearing, thereby supporting and fixing the automobile bearing, the supporting plate 312 is squeezed and moved and presses against the rotating plate 308, thereby locking the rotating plate 308, and manually move the supporting frame to the right as a whole. After the support rod 9 and the ultrasonic flaw detector 11 are adjusted and the distance between the ultrasonic flaw detector 11 and the automobile bearing is adjusted, the fastener 10 is tightened to fix the support rod 9, and then the motor 301 is started. The motor 301 drives the active pulley 302 to rotate, and the active pulley 302, the belt 313 and the driven pulley 314 operate. The active pulley 302 drives the rotating plate 308 to rotate, and the driven pulley 314 drives the extrusion table 316 to rotate. The rotating plate 308 and the extrusion table 316 rotate at the same time. When the automobile bearing rotates 360 degrees, the movable frame 6 moves up and down under the extrusion of the extrusion table 316 and the support of the second compression spring 5. The support rod 9 and the ultrasonic flaw detector 11 move back and forth up and down as a whole, so as to comprehensively detect the automobile bearing.

[0046] In summary, the ultrasonic flaw detection device for automobile bearing crack detection achieves the purpose of comprehensive detection and clamping and locking, and meets people's use needs.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0048] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

[0049] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ultrasonic flaw detection device for detecting cracks in automobile bearings, comprising a base (1), characterized in that: A first support frame (2) and a clamping, fixing and comprehensive detection mechanism (3) are fixed to one side of the upper end surface of the base (1); the clamping, fixing and comprehensive detection mechanism (3) comprises a motor (301); the top of the motor (301) is connected to a driving pulley (302); a rotating platform (303) is fixed to the top of the driving pulley (302); support frames (306) are symmetrically slidably connected to the two sides of the upper end surface of the rotating platform (303); a rotating plate (308) is movably connected to the inner side of the support frame (306); A second support frame (4) is fixed to the other side of the upper end surface of the base (1), a second compression spring (5) is fixed to the inner top of the second support frame (4), a movable frame (6) is fixed to the bottom of the second compression spring (5), a support rod (9) passes through the movable frame (6), and an ultrasonic flaw detector (11) is fixed to one end of the support rod (9).

2. The ultrasonic flaw detection device for detecting cracks in automobile bearings according to claim 1 is characterized in that: A lead screw (304) is rotatably connected to the rotating platform (303), and a knob (305) is fixed to one end of the lead screw (304). The outer side of the lead screw (304) is threadedly connected to two supporting frames (306).

3. The ultrasonic flaw detection device for detecting cracks in automobile bearings according to claim 1 is characterized in that: Slide grooves (307) are symmetrically provided on the two inner walls of the support frame (306), and a rotating plate (308) is movably connected in the slide groove (307).

4. The ultrasonic flaw detection device for detecting cracks in automobile bearings according to claim 3 is characterized in that: A friction strip (309) is fixed to the outer end surface of the rotating plate (308), and the friction strips (309) are distributed on the rotating plate (308) at equal intervals.

5. The ultrasonic flaw detection device for detecting cracks in automobile bearings according to claim 1, characterized in that: The other side of the upper end surface of the base (1) is rotatably connected to a driven pulley (314) via a rotating shaft (315); belts (313) are wound around the outer sides of the driving pulley (302) and the driven pulley (314); and an extrusion platform (316) is fixed to the top of the driven pulley (314).

6. The ultrasonic flaw detection device for detecting cracks in automobile bearings according to claim 1, characterized in that: Grooves (310) are symmetrically formed in the two side walls of the support frame (306), and a first compression spring (311) is fixed in the groove (310). A support plate (312) is fixed at one end of the first compression spring (311), and the support plate (312) is slidably connected to the support frame (306).

7. The ultrasonic flaw detection device for detecting cracks in automobile bearings according to claim 1, characterized in that: A limiting column (7) is fixed on the top of the movable frame (6), and the limiting column (7) passes through the second supporting frame (4).

8. The ultrasonic flaw detection device for detecting cracks in automobile bearings according to claim 1 is characterized in that: A roller (8) is fixed to the bottom of the movable frame (6), and the roller (8) is placed on the movable frame (6).

9. The ultrasonic flaw detection device for detecting cracks in automobile bearings according to claim 1, characterized in that: The support rod (9) is fixed to the movable frame (6) via a fastener (10).

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