Aluminum alloy plate crack detection device with positioning structure

Abstract

The invention relates to the technical field of aluminum alloy plate detection, and particularly discloses an aluminum alloy plate crack detection device with a positioning structure, the aluminum alloy plate crack detection device comprises a bottom plate, the upper end of the bottom plate is symmetrically and fixedly provided with supporting columns, the upper ends of the supporting columns are fixedly provided with the same top frame, and the upper end of the top frame is fixedly provided with a linear motor; a main frame body is fixedly installed on a moving part of the linear motor, a lifting mechanism is arranged on the inner side of the main frame body, and a spraying mechanism is arranged on the left half portion of the lifting mechanism. The driving motor rotates reversely, a rectangular plate on the right half portion of the main frame moves downwards so that an ultrasonic probe can be matched with a coupling agent to conduct crack flaw detection on the aluminum alloy plate, and meanwhile a rectangular plate on the left half portion of the main frame moves upwards synchronously to drive a spraying mechanism to ascend and is combined with the action effect of a linear motor. Coupling agent spraying and crack detection on the aluminum alloy plate can be completed through the stroke of the main frame body in a one-coming and one-returning mode, and therefore the overall detection efficiency of the aluminum alloy plate can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy plate detection, in particular to an aluminum alloy plate crack detection device with a positioning structure. Background Art

[0002] Crack detection and flaw detection of aluminum alloy plates is an important part of ensuring their quality. Among them, ultrasonic flaw detection has become one of the most commonly used methods due to its non-contact, high sensitivity and high accuracy. This method uses the propagation characteristics of ultrasonic waves in the plate, transmits ultrasonic waves through the probe and receives its reflected signal, and analyzes the signal changes to determine the existence and location of cracks. For small or hidden cracks in aluminum alloy plates, ultrasonic flaw detection can accurately identify them to ensure the comprehensiveness and accuracy of detection. In addition, with the continuous advancement of technology, other methods such as X-ray flaw detection and magnetic particle flaw detection are available to meet different detection needs. In short, the application of crack detection and flaw detection technology in aluminum alloy plates provides a strong guarantee for improving product quality.

[0003] In the specific implementation process of ultrasonic flaw detection of aluminum alloy plates, since the uneven spacing between the probe and the plate affects the detection accuracy, it is usually necessary to add a coupling agent between the two as a sound transmission medium, and then it can be monitored by the ultrasonic probe. This traditional detection method requires operators to implement the operation one by one, which requires high skills of the operators and has high labor intensity. Of course, there are also some ultrasonic flaw detection crack detection equipment for plates on the market, and this mechanical detection equipment simply replaces manual operation to implement the operation process one by one. Although it can reduce the labor intensity of the operator to a certain extent, it cannot better combine the use of coupling agent with ultrasonic flaw detection to improve the overall detection efficiency of aluminum alloy plates. Summary of the invention

[0004] The object of the present invention is to provide an aluminum alloy plate crack detection device with a positioning structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides an aluminum alloy plate crack detection device with a positioning structure, comprising a bottom plate, a pillar is symmetrically fixedly installed on the upper end of the bottom plate, a top frame is fixedly installed on the upper end of the pillar, a linear motor is fixedly installed on the upper end of the top frame, a main frame is fixedly installed on the moving part of the linear motor, a lifting mechanism is provided on the inner side of the main frame, a spray mechanism is provided on the left half of the lifting mechanism, a moving mechanism is provided on the right half of the lifting mechanism, a spring-pressing mechanism is provided on the lower end of the moving mechanism, an ultrasonic probe is clamped on the lower end of the spring-pressing mechanism through a mounting mechanism, a plurality of screw holes are evenly spaced at the upper end of the bottom plate, a right-angle positioning frame is fixedly installed on the upper end of the bottom plate by screws, a recovery bucket is fixedly installed on the lower end of the bottom plate, and a baffle is fixedly installed on the upper end of the bottom plate;

[0006] The lifting mechanism comprises a first mounting hole and a second mounting hole, wherein the first mounting hole and the second mounting hole are both opened in the inner side of the main frame body, the inner side of the first mounting hole is rotatably connected with a rotating rod, the outer side of the rotating rod is fixedly installed with a first bevel gear, and the right side of the main frame body is fixedly installed with a second driving motor, one end of the rotating rod passes through the hole wall of the first mounting hole and the output end of the second driving motor is fixedly installed. The inner side of the second mounting hole is rotatably connected with a second screw, and the upper end of the second screw extends into the inner side of the first mounting hole and is fixedly installed with the second bevel gear for meshing connection. The outer side of the second screw is threadedly connected with a rectangular plate, the end of the rectangular plate is slidably connected to the inner side of the second mounting hole, and the lower end of the rectangular plate is symmetrically fixedly installed with a connecting column, and one end of the connecting column away from the rectangular plate slides through the bottom hole wall of the second mounting hole, the spraying mechanism is arranged at the lower end of the connecting column at the left half of the lower end of the main frame body, and the moving mechanism is arranged at the lower end of the connecting column at the right half of the lower end of the main frame body;

[0007] The spray mechanism includes a top shell, an assembly shell and a spray pipe, the top shell is fixedly mounted on the lower end of the connecting column of the left half of the main frame, a first sliding rod is symmetrically fixedly mounted on the inner side of the top shell, a connecting block is symmetrically fixedly connected to the upper end of the assembly shell, the connecting block is slidably connected to the outside of the first sliding rod, a high-frequency electric push rod is fixedly mounted on one end of the top shell, the output end of the high-frequency electric push rod movably penetrates the shell wall of the top shell, the output end of the high-frequency electric push rod is fixedly mounted on one side of the connecting block of the front half of the top shell, and the spray pipe is fixedly mounted on the inner side of the assembly shell;

[0008] The moving mechanism includes a mounting shell, the mounting shell is fixedly mounted on the lower end of the connecting column of the right half of the lower end of the main frame, the lower end of the mounting shell is rotatably connected to the inner side of the first screw, one end of the mounting shell is fixedly mounted with a first driving motor, one end of the first screw penetrates the shell wall of the mounting shell and is fixedly mounted on the output end of the first driving motor, the outer side of the first screw is threadedly connected with a moving seat, the upper end of the moving seat is slidably connected to the inner side of the lower end of the mounting shell, and the spring-pressing mechanism is arranged at the lower end of the moving seat;

[0009] The spring pressing mechanism includes a rectangular cavity and a connecting seat, the rectangular cavity is opened on the inner side of the movable seat, a limit frame is fixedly installed on the outer side of the upper end of the connecting seat, the upper end of the connecting seat is slidably connected to the inner side of the rectangular cavity through the limit frame, the lower end of the connecting seat slides through the bottom cavity wall of the rectangular cavity, a limit rod is symmetrically fixedly installed on the inner top of the rectangular cavity, the lower end of the limit rod is slidably connected to the inner side of the upper end of the connecting seat, a first spring is fixedly installed between the rectangular cavity and the connecting seat, one end of the limit rod movably passes through the middle part of the first spring, and the mounting mechanism is arranged at the lower end of the connecting seat;

[0010] The mounting mechanism includes a side groove, which is arranged on the outer side of the connecting seat, a guide rod inside the side groove, the outer side of the guide rod is slidably connected with the same embossed plate, the lower end of the embossed plate is fixedly connected with a clamping block, the ultrasonic probe is plugged into a side of the connecting seat away from the side groove, a clamping groove is arranged on the upper end of the ultrasonic probe, the clamping end of the clamping block is clamped with the clamping groove, and a second spring is sleeved on the outer side of the guide rod, and the second spring is arranged on the other side of the embossed plate away from the clamping block.

[0011] Furthermore, the moving part of the linear motor is fixedly installed with a cross frame, and a guide rail is fixedly installed between the pillars on the left and right sides of the upper end of the base plate, the end of the cross frame is slidably connected to the guide rail, the upper end of the main frame and the lower end of the cross frame are fixedly installed, and a first sliding groove is symmetrically opened on the inner side of the second mounting hole, the end of the rectangular plate is slidably connected to the inner side of the first sliding rod, and a first screw sleeve is fixedly installed on the inner side of the rectangular plate, and the rectangular plate is threadedly connected to the outer side of the second screw rod through the first screw sleeve.

[0012] Furthermore, a first limiting groove is opened on one side of the assembly shell, the spray pipe is inserted into the inner side of the first limiting groove, a screw groove is symmetrically opened on the side of the spray pipe away from the notch of the first limiting groove, a through hole is symmetrically opened on the inner side of the assembly shell, a hand-tightening bolt is provided on the inner side of the through hole, and the assembly shell is fixedly installed by the threaded end of the hand-tightening bolt passing through the through hole and the screw groove of the spray pipe.

[0013] Furthermore, a second screw sleeve is fixedly installed on the inner side of the movable seat, and the upper end of the movable seat is threadedly connected to the outer side of the first screw rod through the second screw sleeve. A second slide rod is symmetrically fixedly installed on the inner side of the lower end of the mounting shell, and the upper end of the movable seat is slidably connected to the outer side of the second slide rod.

[0014] Furthermore, a third sliding groove is symmetrically opened on the inner side of the rectangular cavity, the end of the limit frame is slidably connected to the inner side of the third sliding groove, the upper end of the connecting seat is symmetrically opened with a rod groove, a spring groove is opened at the notch of the rod groove, one end of the limit rod is slidably connected to the inner side of the rod groove, and one end of the first spring is fixedly installed on the inner side of the spring groove.

[0015] Furthermore, a second limiting groove is provided at the bottom edge of the side of the connecting seat away from the side groove, one end of the ultrasonic probe is plugged into the second limiting groove, the snap-in end of the clamping block is movably extended into the inner side of the second limiting groove and snap-fitted with the clamping groove of the ultrasonic probe, a second sliding groove is symmetrically provided on the inner side of the side groove, and the embossed plate is slidably connected to the second sliding groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] First, in the present invention, when the coupling agent is sprayed on the aluminum alloy plate before detection, the second drive motor rotates forward, and the second screw on the left half of the main frame rotates, so that the connecting column at the lower end of the rectangular plate connected by the external thread and the connected spraying mechanism can move down to an appropriate position close to the aluminum alloy plate to spray the coupling agent, thereby avoiding excessive sputtering of the coupling agent during the spraying process. At the same time, the second screw on the right half of the main frame rotates synchronously, so that the connecting column at the lower end of the rectangular plate connected by the external thread and the connected moving mechanism can rise, thereby avoiding contact with the surface of the dry aluminum alloy plate during the spraying process. At the same time, the linear motor moving part drives the main frame to move from left to right to spray the aluminum alloy plate. On the contrary, when the main frame moves to the right half of the upper end of the bottom plate, the spraying is completed, and then under the action of the linear motor, the ultrasonic probe at the lower end of the main frame moves to the upper right half of the aluminum alloy plate, and then the motor is driven to rotate in the opposite direction. At this time, the rectangular plate on the right half of the main frame moves down so that the ultrasonic probe can cooperate with the coupling agent to perform crack detection on the aluminum alloy plate. At the same time, the rectangular plate on the left half of the main frame moves up synchronously to drive the spraying mechanism to rise, and the effect of the linear motor is engaged. Through the back and forth stroke of the main frame, the coupling agent spraying and crack detection of the aluminum alloy plate can be completed, thereby greatly improving the overall detection efficiency of the aluminum alloy plate, and it is suitable for the detection of aluminum alloy plates of different specifications;

[0018] Secondly, in the present invention, during the spraying process, the linear motor moving part drives the main frame to move from right to left, and the external circulation pump can transport the coupling agent to the spray pipe through the pipeline, and the spray pipe is installed in the assembly shell at the lower end of the connecting block, and the high-frequency electric push rod output end is used to quickly extend and retract to push the connecting block to slide back and forth on the first sliding rod inside the top shell, so that the spray pipe keeps shaking horizontally, thereby expanding the spraying range and reducing the blind area of ​​the spraying of the edges and corners of the plate, and at the same time, it also helps to improve the spraying efficiency of the spray pipe on the aluminum alloy plate;

[0019] Thirdly, in the present invention, the second screw is driven to rotate inside the mounting shell by the first driving motor, so that the movable seat connected with the outer thread can slide back and forth at the mounting shell, and the movable part of the linear motor drives the main frame to move left and right, which can facilitate the ultrasonic probe to perform a more comprehensive detection of the aluminum alloy plate. When the ultrasonic probe contacts the surface of the aluminum alloy plate, the mounting mechanism fixes the ultrasonic probe to the lower end of the connecting seat, and the first spring is installed between the connecting seat and the rectangular cavity of the movable seat, so that the ultrasonic probe can elastically fit on the surface of the aluminum alloy plate for detection, thereby protecting the aluminum alloy plate and the ultrasonic probe to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the lifting mechanism structure in the present invention;

[0022] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is an exploded view of the spray mechanism in the present invention;

[0024] Figure 5 It is a schematic diagram of the assembly shell structure in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the mobile mechanism in the present invention;

[0026] Figure 7 It is a schematic diagram of the installation mechanism structure in the present invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle;

[0028] Fig. 9 It is a schematic diagram of the bottom structure of the spring pressing mechanism in the present invention;

[0029] Fig.10It is a schematic diagram of the upper end structure of the ultrasonic probe in the present invention;

[0030] Fig.11 It is a schematic diagram of the structure of the spring pressing mechanism in the present invention;

[0031] Fig.12 It is a schematic diagram of the upper structure of the connecting seat in the present invention.

[0032] In the figure: 1, bottom plate; 2, pillar; 3, top frame; 4, linear motor; 5, main frame; 6, moving mechanism; 601, mounting shell; 602, first screw; 603, first drive motor; 604, moving seat; 7, spray mechanism; 701, top shell; 702, connecting block; 703, assembly shell; 704, spray pipe; 705, high-frequency electric push rod; 706, first slide bar; 8, lifting mechanism; 801, first mounting hole; 802, rotating rod; 803, first bevel gear; 804, second bevel gear; 805, second drive motor; 806, second screw; 807, second mounting hole; 808, connecting column; 809, rectangular plate; 9, stop frame; 10, right-angle positioning Frame; 11, screw hole; 12, recovery bucket; 13, cross frame; 14, guide rail; 15, first slide groove; 16, first screw sleeve; 17, screw groove; 18, through hole; 19, hand-tightening bolt; 20, first limiting groove; 21, second slide rod; 211, second screw sleeve; 22, spring-pressing mechanism; 221, rectangular cavity; 222, limiting frame; 223, connecting seat; 224, limiting rod; 225, first spring; 23, ultrasonic probe; 24, mounting mechanism; 241, side groove; 242, second spring; 243, guide rod; 244, embossed plate; 245, block; 25, second slide groove; 26, second limiting groove; 27, card slot; 28, third slide groove; 29, rod slot; 30, spring slot. DETAILED DESCRIPTION

[0033] Example

[0034] See also Figure 1-Figure 12In an embodiment of the present invention, a crack detection device for an aluminum alloy plate with a positioning structure includes a bottom plate 1, a support 2 is symmetrically fixedly installed on the upper end of the bottom plate 1, a top frame 3 is fixedly installed on the upper end of the support 2, a linear motor 4 is fixedly installed on the upper end of the top frame 3, a main frame 5 is fixedly installed on the moving part of the linear motor 4, a lifting mechanism 8 is provided on the inner side of the main frame 5, a spray mechanism 7 is provided on the left half of the lifting mechanism 8, a moving mechanism 6 is provided on the right half of the lifting mechanism 8, a spring-pressing mechanism 22 is provided on the lower end of the moving mechanism 6, an ultrasonic probe 23 is clamped on the lower end of the spring-pressing mechanism 22 through a mounting mechanism 24, and the bottom plate A plurality of screw holes 11 are provided at equal intervals on the upper end of the bottom plate 1, a right-angle positioning frame 10 is fixedly installed on the upper end of the bottom plate 1 by screws, a recovery bucket 12 is fixedly installed on the lower end of the bottom plate 1, and a baffle 9 is fixedly installed on the upper end of the bottom plate 1; the right-angle positioning plate is fixed to the screw hole 11 at the upper end of the bottom plate 1 by screws, and there are two right-angle positioning plates in total, which can be used to position the diagonal of the aluminum alloy plate after installation to prevent the aluminum alloy plate from tilting, and the screw hole 11 can also be used to cooperate with the recovery bucket 12 to recover the coupling agent, and the inner side of the recovery bucket 12 is also provided with a filtering structure, which can filter the coupling agent and then cooperate with an external circulation pump for recycling;

[0035] The lifting mechanism 8 includes a first mounting hole 801 and a second mounting hole 807, both of which are arranged on the inner side of the main frame 5, and a rotating rod 802 is rotatably connected to the inner side of the first mounting hole 801, and a first bevel gear 803 is fixedly installed on the outer side of the rotating rod 802, and a second driving motor 805 is fixedly installed on the right side of the main frame 5, one end of the rotating rod 802 passes through the hole wall of the first mounting hole 801 and is fixedly installed on the output end of the second driving motor 805, and a second screw rod 806 is rotatably connected to the inner side of the second mounting hole 807, and the upper end of the second screw rod 806 extends into the inner side of the first mounting hole 801 and is fixedly installed with a second bevel gear 804, and the first bevel gear 803 and the second bevel gear 804 are The outer side of the second screw rod 806 is threadedly connected with a rectangular plate 809, and the end of the rectangular plate 809 is slidably connected to the inner side of the second mounting hole 807. The lower end of the rectangular plate 809 is symmetrically fixedly installed with a connecting column 808. The end of the connecting column 808 away from the rectangular plate 809 slides through the bottom hole wall of the second mounting hole 807. The spray mechanism 7 is arranged at the lower end of the connecting column 808 at the left half of the lower end of the main frame 5, and the moving mechanism 6 is arranged at the lower end of the connecting column 808 at the right half of the lower end of the main frame 5. The output end of the second driving motor 805 is used to drive the rotating rod 802 to rotate inside the first mounting hole 801, so that the first bevel gear 803 on the outer side of the rotating rod 802 meshes with the second bevel gear 804, and the second bevel gear 804 is connected to the The second screw 806 rotates in the second mounting hole 807 at the lower end of the main frame 5. The rotation of the second screw 806 causes the rectangular plate 809 connected by the outer thread to slide, and the lower end of the rectangular plate 809 is connected to the connecting column 808. When the coupling agent is sprayed on the aluminum alloy plate before detection, the second drive motor 805 rotates forward, and the second screw 806 on the left half of the main frame 5 rotates, so that the connecting column 808 at the lower end of the rectangular plate 809 connected by the outer thread, and the connected spray mechanism 7 can be moved down to a suitable position close to the aluminum alloy plate to spray the coupling agent, so as to avoid excessive sputtering of the coupling agent during the spraying process. At the same time, the second screw 806 on the right half of the main frame 5 rotates synchronously, so that the rectangular plate 809 connected by the outer thread The lower end connecting column 808, the connected moving mechanism 6 can rise to avoid contact with the surface of the dry aluminum alloy plate during the spraying process. At the same time, the moving part of the linear motor 4 drives the main frame 5 to move from left to right to spray the aluminum alloy plate. On the contrary, when the main frame 5 moves to the right half of the upper end of the bottom plate 1, the spraying is completed. Then, under the action of the linear motor 4, the ultrasonic probe 23 at the lower end of the main frame 5 moves to the upper right half of the aluminum alloy plate, and then the driving motor rotates in the opposite direction. At this time, the rectangular plate 809 on the right half of the main frame 5 moves downward so that the ultrasonic probe 23 can cooperate with the coupling agent to perform crack detection on the aluminum alloy plate. At the same time, the rectangular plate 809 on the left half of the main frame 5 moves upward synchronously to drive the spray mechanism 7 to rise;The second screw rod 806 on the left half of the main frame 5 and the second screw rod 806 on the right half of the main frame 5 have an external thread structure that is opposite to that of the second screw rod 806 on the right half of the main frame 5; the descending height of the spray mechanism 7 is adjusted and set according to the thickness of the aluminum alloy plate and the sputtering range;

[0036] The spray mechanism 7 includes a top shell 701, an assembly shell 703 and a spray pipe 704. The top shell 701 is fixedly installed at the lower end of the connecting column 808 on the left half of the main frame 5. The inner side of the top shell 701 is symmetrically fixedly installed with a first slide bar 706. The upper end of the assembly shell 703 is symmetrically fixedly connected with a connecting block 702. The connecting block 702 is slidably connected to the outside of the first slide bar 706. A high-frequency electric push rod 705 is fixedly installed at one end of the top shell 701. The output end of the high-frequency electric push rod 705 movably penetrates the shell wall of the top shell 701. The output end of the high-frequency electric push rod 705 is fixedly installed on one side of the connecting block 702 in the front half of the top shell 701. The spray pipe 704 is fixedly installed on the inner side of the assembly shell 703. During the spraying process, an external circulation pump can transport the coupling agent to the spray pipe through a pipeline. 704, and the spray pipe 704 is installed in the assembly shell 703 at the lower end of the connection block 702. The output end of the high-frequency electric push rod 705 is used to quickly extend and retract to push the connection block 702 to slide on the first slide bar 706 inside the top shell 701, so that the sprayed coupling agent can shake, so that the coupling agent can better cover the aluminum alloy plate when sprayed; because there is still a gap between the nozzles of the spray pipe 704, the coupling agent can improve the coverage effect of the aluminum alloy plate by shaking and spraying. During the spraying process of the spray mechanism 7, the speed of the moving part of the linear motor 4 is based on the spraying effect on the aluminum alloy plate. The debugged equipment can be at the optimal moving speed, that is, to ensure the implementation efficiency, and also achieve the coverage effect on the aluminum alloy plate;

[0037] The moving mechanism 6 includes a mounting shell 601, which is fixedly mounted on the lower end of the connecting column 808 on the right half of the lower end of the main frame 5. The lower end of the mounting shell 601 is rotatably connected to the inner side of the first screw 602. One end of the mounting shell 601 is fixedly mounted with a first drive motor 603. One end of the first screw 602 penetrates through the shell wall of the mounting shell 601 and is fixedly mounted on the output end of the first drive motor 603. The outer side of the first screw 602 is threadedly connected to a moving seat 604. The upper end of the moving seat 604 is slidably connected to the inner side of the lower end of the mounting shell 601. The spring-pressing mechanism 22 is arranged at the lower end of the moving seat 604. The second screw 806 is driven by the first drive motor 603 to rotate inside the mounting shell 601, so that the moving seat 604 with the outer thread connection can slide back and forth at the mounting shell 601, and cooperates with the moving part of the linear motor 4 to drive the main frame 5 to move left and right, which can facilitate the ultrasonic probe 23 to perform a more comprehensive detection of the aluminum alloy plate.

[0038] The spring pressing mechanism 22 includes a rectangular cavity 221 and a connecting seat 223. The rectangular cavity 221 is opened on the inner side of the movable seat 604. A limit frame 222 is fixedly installed on the outer side of the upper end of the connecting seat 223. The upper end of the connecting seat 223 is slidably connected to the inner side of the rectangular cavity 221 through the limit frame 222. The lower end of the connecting seat 223 slides through the bottom cavity wall of the rectangular cavity 221. A limit rod 224 is symmetrically fixedly installed on the inner top of the rectangular cavity 221. The lower end of the limit rod 224 is slidably connected to the inner side of the upper end of the connecting seat 223. A first spring 225 is fixedly installed between the rectangular cavity 221 and the connecting seat 223. One end of the limit rod 224 movably penetrates the middle part of the first spring 225. The mounting mechanism 24 is arranged at the lower end of the connecting seat 223. When the limit rod 224 is moved, the first spring 225 is fixedly installed between the rectangular cavity 221 and the connecting seat 223. When the ultrasonic probe 23 contacts the surface of the aluminum alloy plate, the mounting mechanism 24 fixes the ultrasonic probe 23 to the lower end of the connecting seat 223, and the connecting seat 223 is provided with a first spring 225 between the rectangular cavity 221 of the movable seat 604, so that the ultrasonic probe 23 can be elastically attached to the surface of the aluminum alloy plate for detection; in this process, the ultrasonic probe 23 is not elastically pressed against the aluminum alloy plate in a completely sense, but the bonding effect between the detection end of the ultrasonic probe 23 and the aluminum alloy plate is increased, so that the ultrasonic probe 23 can be better detected on the aluminum alloy plate in combination with the effect of the coupling agent, and at the same time, the detection part of the ultrasonic probe 23 can be protected to a certain extent;

[0039] The mounting mechanism 24 includes a side groove 241, which is provided on the outer side of the connecting seat 223, a guide rod 243 inside the side groove 241, and the outer side of the guide rod 243 is slidably connected with the same convex plate 244, and the lower end of the convex plate 244 is fixedly connected with a clamping block 245, and the ultrasonic probe 23 is plugged into the side of the connecting seat 223 away from the side groove 241, and the upper end of the ultrasonic probe 23 is provided with a clamping groove 27, and the clamping end of the clamping block 245 is clamped with the clamping groove 27, and the outer side of the guide rod 243 is sleeved with a second spring 242, and the second spring 242 is provided on the other side of the convex plate 244 away from the clamping block 245. When installing the ultrasonic probe 23, one end of the ultrasonic probe 23 is limited and inserted along one side of the lower end of the connecting seat 223, and the insertion is During the process, the upper end of the ultrasonic probe 23 forms an extrusion pressure on the inclined surface of the block 245, and at the same time, the convex plate 244 connected to the block 245 slides at the side groove 241 and compresses the second spring 242. When the slot 27 on the ultrasonic probe 23 corresponds to the position of the snap-in end of the block 245, the second spring 242 resets and pushes the block 245 connected to the convex plate 244 to snap into the slot 27 of the ultrasonic probe 23 to fix it. When disassembling, it is only necessary to push the convex part of the convex plate 244 toward one side of the second spring 242 to separate the block 245 of the convex plate 244 from the slot 27, and then push it out along the insertion port of the ultrasonic probe 23, so that the ultrasonic probe 23 can be easily disassembled and used.

[0040] See also Figure 2 and Figure 3 The moving part of the linear motor 4 is fixedly installed with a cross frame 13, and a guide rail 14 is fixedly installed between the pillars 2 on the left and right sides of the upper end of the bottom plate 1. The end of the cross frame 13 is slidably connected to the guide rail 14, and the upper end of the main frame 5 and the lower end of the cross frame 13 are fixedly installed. The inner side of the second mounting hole 807 is symmetrically provided with a first slide groove 15, and the end of the rectangular plate 809 is slidably connected to the inner side of the first slide bar 706. The inner side of the rectangular plate 809 is fixedly installed with a first screw sleeve 16, and the rectangular plate 809 is threadedly connected to the first screw sleeve 16. It is connected to the outside of the second screw 806 and slides on the guide rail 14 of the pillar 2 through the cross frame 13 on the main frame 5, so as to ensure the stability of the main frame 5. At the same time, the moving part of the linear motor 4 is connected to the cross frame 13, so as to conveniently drive the main frame 5 to move. The rectangular plate 809 can improve the stability of the lifting and lowering of the rectangular plate 809 by sliding on the first slide groove 15 at the second mounting hole 807, and the first screw sleeve 16 on the inner side of the rectangular plate 809 can conveniently make it threadedly connected to the outside of the second screw 806.

[0041] See also Figure 4 A first limiting groove 20 is provided on one side of the assembly shell 703, and the spray pipe 704 is inserted into the inner side of the first limiting groove 20. A screw groove 17 is symmetrically provided on the side of the spray pipe 704 away from the notch of the first limiting groove 20. A through hole 18 is symmetrically provided on the inner side of the assembly shell 703. A hand screw bolt 19 is provided on the inner side of the through hole 18. The assembly shell 703 is fixedly installed by the threaded end of the hand screw bolt 19 passing through the through hole 18 and the screw groove 17 of the spray pipe 704. When disassembling and assembling the spray pipe 704, the spray pipe 704 is limitedly inserted into the assembly shell 703, and then the hand screw bolt 19 at the through hole 18 of the assembly shell 703 is engaged with the screw groove 17 on the spray pipe 704 to connect it, so that the spray pipe 704 can be conveniently disassembled and assembled.

[0042] See also Figure 6 A second screw sleeve 211 is fixedly installed on the inner side of the movable seat 604, and the upper end of the movable seat 604 is threadedly connected to the outer side of the first screw rod 602 through the second screw sleeve 211. A second slide bar 21 is symmetrically fixedly installed on the inner side of the lower end of the mounting shell 601, and the upper end of the movable seat 604 is slidably connected to the outer side of the second slide bar 21. The movable seat 604 with the second screw sleeve 211 can be threadedly connected to the first screw rod 602, and the movable seat 604 can stably slide on the second slide bar 21 inside the mounting shell 601.

[0043] See also Fig.10 and Fig.11 and Fig.12A third slide groove 28 is symmetrically provided on the inner side of the rectangular cavity 221, and the end of the limit frame 222 is slidably connected to the inner side of the third slide groove 28. A rod groove 29 is symmetrically provided on the upper end of the connecting seat 223, and a spring groove 30 is provided at the notch of the rod groove 29. One end of the limit rod 224 is slidably connected to the inner side of the rod groove 29, and one end of the first spring 225 is fixedly installed on the inner side of the spring groove 30. By using the limit frame 222 on the connecting seat 223 to slide at the third slide groove 28 of the rectangular cavity 221, the stability of the connecting seat 223 can be improved, and the limit rod 224 in the rectangular cavity 221 passes through the first spring 225 and slides in the connecting seat 223, which can ensure the stability of the first spring 225.

[0044] See also Figure 8 and Fig. 9 A second limiting groove 26 is provided at the bottom edge of the side of the connecting seat 223 away from the side groove 241. One end of the ultrasonic probe 23 is plugged into the second limiting groove 26. The plug-in end of the clamping block 245 is movably extended into the inner side of the second limiting groove 26 and is clamped with the clamping groove 27 of the ultrasonic probe 23. A second sliding groove 25 is symmetrically provided on the inner side of the side groove 241. The embossed plate 244 is slidably connected with the second sliding groove 25. By limiting and plugging the ultrasonic probe 23 and the second limiting groove 26 on the connecting seat 223, the clamping block 245 can be conveniently used to clamp and fix the ultrasonic probe 23 in the second limiting groove 26. The embossed plate 244 can slide and limit the embossed plate 244 by sliding at the second sliding groove 25 inside the side groove 241, so as to facilitate the disassembly and use of the ultrasonic probe 23.

[0045] The working principle of the present invention is as follows: during use, the aluminum alloy plate is firstly diagonally positioned through the right-angle positioning frame 10 at the upper end of the bottom plate 1 to avoid the aluminum alloy plate from tilting during the detection process. During detection, the output end of the second drive motor 805 is used to drive the rotating rod 802 to rotate inside the first mounting hole 801, so that the first bevel gear 803 on the outer side of the rotating rod 802 meshes with the second bevel gear 804, and the second screw 806 connected to the second bevel gear 804 rotates in the second mounting hole 807 at the lower end of the main frame 5. Due to the rotation of the second screw 806, the rectangular plate 809 connected by the outer thread slides, and the lower end of the rectangular plate 809 is connected to the connecting column 808. When the coupling agent is sprayed on the aluminum alloy plate before detection, the second drive motor 805 rotates forward, and the second screw 806 on the left half of the main frame 5 rotates, so that the lower end of the rectangular plate 809 connected by the outer thread is connected to the connecting column 808, and the connected spray mechanism 7 can be moved down to The coupling agent is sprayed at an appropriate position close to the aluminum alloy plate to avoid excessive sputtering of the coupling agent during the spraying process. At the same time, the second screw 806 on the right half of the main frame 5 rotates synchronously, so that the lower end connecting column 808 of the rectangular plate 809 connected by the external thread, and the connected moving mechanism 6 can rise to avoid contact with the surface of the dry aluminum alloy plate during the spraying process. At the same time, the moving part of the linear motor 4 drives the main frame 5 to move from left to right to spray the aluminum alloy plate. On the contrary, when the main frame 5 moves to the right half of the upper end of the bottom plate 1, the spraying is completed. Then, under the action of the linear motor 4, the ultrasonic probe 23 at the lower end of the main frame 5 moves to the upper right half of the aluminum alloy plate, and then the driving motor rotates in the opposite direction. At this time, the rectangular plate 809 on the right half of the main frame 5 moves downward so that the ultrasonic probe 23 can cooperate with the coupling agent to perform crack detection on the aluminum alloy plate. At the same time, the rectangular plate 809 on the left half of the main frame 5 moves upward synchronously to drive the spray mechanism 7 to rise.

[0046] During the spraying process, the external circulation pump can transport the coupling agent to the spray pipe 704 through the pipeline, and the spray pipe 704 is installed in the assembly shell 703 at the lower end of the connection block 702. The output end of the high-frequency electric push rod 705 is used to quickly extend and retract to push the connection block 702 to slide on the first slide bar 706 inside the top shell 701, which can make the sprayed coupling agent shake, so that the coupling agent can better cover the aluminum alloy plate. During the detection process, the first drive motor 603 drives the second screw 806 to rotate inside the installation shell 601, so that the outer thread The connected moving seat 604 can slide forward and backward at the mounting shell 601, and cooperate with the moving part of the linear motor 4 to drive the main frame 5 to move left and right, which can facilitate the ultrasonic probe 23 to perform a more comprehensive detection of the aluminum alloy plate. When the ultrasonic probe 23 contacts the surface of the aluminum alloy plate, the mounting mechanism 24 fixes the ultrasonic probe 23 to the lower end of the connecting seat 223, and the first spring 225 is installed between the connecting seat 223 and the rectangular cavity 221 of the moving seat 604, so that the ultrasonic probe 23 can be elastically attached to the surface of the aluminum alloy plate for detection;

[0047] When installing the ultrasonic probe 23, one end of the ultrasonic probe 23 is limited and inserted along one side of the lower end of the connecting seat 223. During the insertion process, the upper end of the ultrasonic probe 23 forms an extrusion force on the inclined surface of the block 245. At the same time, the convex plate 244 connected to the block 245 slides at the side groove 241 and compresses the second spring 242. When the groove 27 on the ultrasonic probe 23 corresponds to the position of the card-in end of the block 245, the second spring 242 is reset to push the block 245 connected to the convex plate 244 to be carded into The ultrasonic probe 23 can be fixed in the slot 27. When disassembling, it is only necessary to push the convex part of the embossed plate 244 toward the side of the second spring 242 to separate the block 245 of the embossed plate 244 from the slot 27, and then push it out along the insertion direction of the ultrasonic probe 23. When disassembling and assembling the spray pipe 704, the spray pipe 704 is limitedly inserted into the assembly shell 703, and then the hand-tightened bolt 19 at the through hole 18 of the assembly shell 703 is engaged with the screw groove 17 on the spray pipe 704 to connect it.

Claims

1. A crack detection device for aluminum alloy plate with a positioning structure, characterized in that: The invention comprises a bottom plate (1), a support (2) is symmetrically fixedly mounted on the upper end of the bottom plate (1), a top frame (3) is fixedly mounted on the upper end of the support (2), a linear motor (4) is fixedly mounted on the upper end of the top frame (3), a main frame (5) is fixedly mounted on the moving part of the linear motor (4), a lifting mechanism (8) is provided on the inner side of the main frame (5), a spray mechanism (7) is provided on the left half of the lifting mechanism (8), and a moving mechanism (7) is provided on the right half of the lifting mechanism (8). The movable mechanism (6) is provided with a spring-pressing mechanism (22) at the lower end, and an ultrasonic probe (23) is clamped at the lower end of the spring-pressing mechanism (22) through a mounting mechanism (24). A plurality of screw holes (11) are provided at equal intervals at the upper end of the bottom plate (1). A right-angle positioning frame (10) is fixedly mounted on the upper end of the bottom plate (1) through screws. A recovery bucket (12) is fixedly mounted on the lower end of the bottom plate (1), and a retaining frame (9) is fixedly mounted on the upper end of the bottom plate (1); The lifting mechanism (8) comprises a first mounting hole (801) and a second mounting hole (807), wherein the first mounting hole (801) and the second mounting hole (807) are both arranged on the inner side of the main frame (5), the inner side of the first mounting hole (801) is rotatably connected to a rotating rod (802), the outer side of the rotating rod (802) is fixedly installed with a first bevel gear (803), a second driving motor (805) is fixedly installed on the right side of the main frame (5), one end of the rotating rod (802) passes through the hole wall of the first mounting hole (801) and is fixedly installed with the output end of the second driving motor (805), the inner side of the second mounting hole (807) is rotatably connected to a second screw rod (806), the upper end of the second screw rod (806) extends into the first A second bevel gear (804) is fixedly installed on the inner side of the mounting hole (801); the first bevel gear (803) and the second bevel gear (804) are meshingly connected; the outer side of the second screw rod (806) is threadedly connected to a rectangular plate (809); the end of the rectangular plate (809) is slidably connected to the inner side of the second mounting hole (807); a connecting column (808) is symmetrically fixedly installed on the lower end of the rectangular plate (809); the end of the connecting column (808) away from the rectangular plate (809) slides through the bottom hole wall of the second mounting hole (807); the spray mechanism (7) is arranged at the lower end of the connecting column (808) at the left half of the lower end of the main frame (5); and the moving mechanism (6) is arranged at the lower end of the connecting column (808) at the right half of the lower end of the main frame (5).

2. The aluminum alloy plate crack detection device with a positioning structure according to claim 1 is characterized in that: The moving part of the linear motor (4) is fixedly installed with a cross frame (13), and a guide rail (14) is fixedly installed between the pillars (2) on the left and right sides of the upper end of the base plate (1). The end of the cross frame (13) is slidably connected to the guide rail (14), the upper end of the main frame (5) and the lower end of the cross frame (13) are fixedly installed, and the inner side of the second mounting hole (807) is symmetrically provided with a first sliding groove (15), the end of the rectangular plate (809) is slidably connected to the inner side of the first sliding rod (706), and the inner side of the rectangular plate (809) is fixedly installed with a first screw sleeve (16), and the rectangular plate (809) is threadedly connected to the outer side of the second screw rod (806) through the first screw sleeve (16).

3. The aluminum alloy plate crack detection device with a positioning structure according to claim 1 is characterized in that: The spray mechanism (7) comprises a top shell (701), an assembly shell (703) and a spray pipe (704); the top shell (701) is fixedly mounted on the lower end of a connecting column (808) on the left half of the main frame (5); a first sliding rod (706) is symmetrically fixedly mounted on the inner side of the top shell (701); a connecting block (702) is symmetrically fixedly connected to the upper end of the assembly shell (703); the connecting block (702) is slidably connected to the outer side of the first sliding rod (706); a high-frequency electric push rod (705) is fixedly mounted on one end of the top shell (701); an output end of the high-frequency electric push rod (705) movably passes through the shell wall of the top shell (701); the output end of the high-frequency electric push rod (705) is fixedly mounted on one side of the connecting block (702) on the front half of the top shell (701); and the spray pipe (704) is fixedly mounted on the inner side of the assembly shell (703).

4. The aluminum alloy plate crack detection device with a positioning structure according to claim 3 is characterized in that: A first limiting groove (20) is provided on one side of the assembly shell (703), the spray pipe (704) is inserted into the inner side of the first limiting groove (20), a screw groove (17) is symmetrically provided on the side of the spray pipe (704) away from the notch of the first limiting groove (20), a through hole (18) is symmetrically provided on the inner side of the assembly shell (703), a hand-tightening bolt (19) is provided on the inner side of the through hole (18), and the assembly shell (703) is fixedly installed by the threaded end of the hand-tightening bolt (19) passing through the through hole (18) and the screw groove (17) of the spray pipe (704).

5. The aluminum alloy plate crack detection device with a positioning structure according to claim 1, characterized in that: The moving mechanism (6) comprises a mounting shell (601), wherein the mounting shell (601) is fixedly mounted on the lower end of a connecting column (808) at the right half of the lower end of the main frame (5); a first screw rod (602) is rotatably connected to the inner side of the lower end of the mounting shell (601); a first driving motor (603) is fixedly mounted on one end of the mounting shell (601); one end of the first screw rod (602) penetrates through the shell wall of the mounting shell (601) and is fixedly mounted on the output end of the first driving motor (603); a moving seat (604) is threadedly connected to the outer side of the first screw rod (602); the upper end of the moving seat (604) is slidably connected to the inner side of the lower end of the mounting shell (601); and the spring-pressing mechanism (22) is arranged at the lower end of the moving seat (604).

6. The aluminum alloy plate crack detection device with a positioning structure according to claim 5, characterized in that: A second screw sleeve (211) is fixedly mounted on the inner side of the movable seat (604), and the upper end of the movable seat (604) is threadedly connected to the outer side of the first screw rod (602) through the second screw sleeve (211). A second sliding rod (21) is symmetrically fixedly mounted on the inner side of the lower end of the mounting shell (601), and the upper end of the movable seat (604) is slidably connected to the outer side of the second sliding rod (21).

7. The aluminum alloy plate crack detection device with a positioning structure according to claim 5, characterized in that: The spring pressing mechanism (22) comprises a rectangular cavity (221) and a connecting seat (223); the rectangular cavity (221) is opened on the inner side of the movable seat (604); a limit frame (222) is fixedly installed on the outer side of the upper end of the connecting seat (223); the upper end of the connecting seat (223) is slidably connected to the inner side of the rectangular cavity (221) through the limit frame (222); the lower end of the connecting seat (223) slides through the bottom cavity of the rectangular cavity (221) A limiting rod (224) is symmetrically fixedly installed on the inner top of the rectangular cavity (221), the lower end of the limiting rod (224) is slidably connected to the inner side of the upper end of the connecting seat (223), a first spring (225) is fixedly installed between the rectangular cavity (221) and the connecting seat (223), one end of the limiting rod (224) movably passes through the middle part of the first spring (225), and the mounting mechanism (24) is arranged at the lower end of the connecting seat (223).

8. The aluminum alloy plate crack detection device with a positioning structure according to claim 7, characterized in that: A third sliding groove (28) is symmetrically provided on the inner side of the rectangular cavity (221), and the end of the limiting frame (222) is slidably connected to the inner side of the third sliding groove (28). A rod groove (29) is symmetrically provided on the upper end of the connecting seat (223), and a spring groove (30) is provided at the notch of the rod groove (29). One end of the limiting rod (224) is slidably connected to the inner side of the rod groove (29), and one end of the first spring (225) is fixedly installed on the inner side of the spring groove (30).

9. The aluminum alloy plate crack detection device with a positioning structure according to claim 7, characterized in that: The mounting mechanism (24) comprises a side groove (241), the side groove (241) being provided on the outer side of the connecting seat (223), a guide rod (243) being provided inside the side groove (241), the outer side of the guide rod (243) being slidably connected with the same embossed plate (244), the lower end of the embossed plate (244) being fixedly connected with a clamping block (245), the ultrasonic probe (23) being plugged into a side of the connecting seat (223) away from the side groove (241), a clamping groove (27) being provided at the upper end of the ultrasonic probe (23), the clamping end of the clamping block (245) being clamped with the clamping groove (27), the outer side of the guide rod (243) being sleeved with a second spring (242), the second spring (242) being provided on the other side of the embossed plate (244) away from the clamping block (245).

10. The aluminum alloy plate crack detection device with a positioning structure according to claim 9, characterized in that: A second limiting groove (26) is provided at the bottom edge of one side of the connecting seat (223) away from the side groove (241); one end of the ultrasonic probe (23) is plugged into the second limiting groove (26); the snap-in end of the clamping block (245) movably extends into the inner side of the second limiting groove (26) and snaps into the clamping groove (27) of the ultrasonic probe (23); a second sliding groove (25) is symmetrically provided on the inner side of the side groove (241); and the embossed plate (244) is slidably connected to the second sliding groove (25).

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