A portable nondestructive testing device and testing method for automobile die castings

Abstract

The invention discloses a portable nondestructive testing device for automobile die castings and a testing method thereof, which are applied in the technical field of portable nondestructive testing for automobile die castings. The main points of the technical scheme are: comprising a base; the base is foldably provided with a plurality of supporting legs based on a clamping assembly, the center of the base is rotatably connected with a mounting locking assembly for fixing an automobile wheel hub and a detachably fixed rotating driving assembly for driving the mounting locking assembly to rotate, an X-ray tube is slidably connected to the base based on a first guide slide rail assembly, and at the same time, a first imaging plate which is arranged frontally and rearwardly opposite to the X-ray tube and is used for performing nondestructive testing on the side of the automobile wheel hub is slidably connected to the base based on a second guide slide rail assembly, and a second imaging plate which is arranged upper and lower opposite to the X-ray tube and is used for performing nondestructive testing on the end face of the automobile wheel hub is fixedly connected to the base; the technical effects are: simple structure, easy installation and transportation.

Description

Technical Field

[0001] The invention relates to the technical field of portable nondestructive testing of automobile die castings, and in particular to a portable nondestructive testing device and a testing method for automobile die castings. Background Art

[0002] Nondestructive testing refers to a method of inspecting and testing the structure, properties, state and type, nature, quantity, shape, position, size, distribution and changes of defects inside and on the surface of the test piece by using physical or chemical methods, with the help of modern technology and equipment, without damaging or affecting the performance of the tested object or the internal organization of the tested object, by utilizing the changes in heat, sound, light, electricity and magnetism caused by abnormal internal structure or defects of the material, without damaging or affecting the performance of the tested object or the internal organization of the tested object. There are four main types of nondestructive testing: X-ray inspection, ultrasonic inspection, magnetic particle inspection and liquid penetration inspection. At present, automobile wheels can be integrally formed by die-casting. Die-cast wheels usually use lightweight materials such as aluminum alloy, which can effectively reduce the overall weight of the car. At the same time, lightweight die-cast wheels can reduce the unsprung weight of the vehicle, thereby improving the fuel economy of the vehicle. At the same time, they have significant advantages in improving handling performance, enhancing durability and safety, and adapting to various environments and temperature changes.

[0003] At present, a Chinese invention with a publication number of CN106093084B discloses a wheel hub nondestructive testing device, including a relatively fixed conveying track, a clamping and rotating device, an imager and an X-ray tube, the imager and the X-ray tube are arranged relatively to each other up and down, the conveying track and the clamping and rotating device are arranged horizontally between the imager and the X-ray tube, and the clamping and rotating device is located below the conveying track; the clamping and rotating device drives the input gear to rotate through the input rack, and drives the output gear to rotate at the same time, and then transmits the information to the output rack, so that each output rack is extended and retracted to drive each first mounting plate to move along the first mounting arm, and a motor, a reduction box and a rotating wheel are installed on the first mounting plate, and the rotating wheel rotates under the drive of the motor.

[0004] The existing invention realizes non-destructive testing of the wheel hub by moving the wheel hub along the conveying track to the position facing the imager and the X-ray tube, and then lifting and rotating the wheel hub through a clamping and rotating device. However, the non-destructive testing equipment disclosed in the existing invention occupies a large space and has a complicated transportation and debugging process. It is only suitable for non-destructive testing needs in specific scenarios. However, it is difficult to adapt to usage scenarios such as the need to perform non-destructive testing on the automobile wheel hub after repair to determine whether the wheel hub can continue to be used. Therefore, it is necessary to design a portable non-destructive testing equipment to solve this problem. Summary of the invention

[0005] The first object of the present invention is to provide a portable nondestructive testing device for automobile die castings, which has the advantages of simple structure and easy installation and transportation.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a portable non-destructive testing device for automobile die castings, comprising a base; the base is foldably provided with a plurality of supporting legs based on a snap-on assembly, the center of the base is rotatably connected with a mounting and locking assembly for fixing an automobile wheel hub, and a rotating drive assembly for driving the mounting and locking assembly to rotate is detachably fixedly provided, an X-ray tube is slidably connected to the base based on a first guide rail assembly, and at the same time, the base is also slidably connected with a first imaging plate arranged frontally and rearwardly opposite to the X-ray tube based on a second guide rail assembly for non-destructive testing of the side surface of the automobile wheel hub, and a second imaging plate is fixedly connected to the base and arranged up and down opposite to the X-ray tube for non-destructive testing of the end surface of the automobile wheel hub.

[0007] The present invention is further configured as follows: the supporting leg includes a folding seat rotatably connected to the base and a telescopic slide groove opened in the folding seat, the telescopic slide groove is slidably connected to a telescopic support rod, an end of the telescopic support rod away from the folding seat is fixedly connected to an anti-slip gasket, and a plurality of first sockets and second sockets are evenly spaced along the telescopic direction on the folding seat and the telescopic support rod, and the first socket and the second socket are connected based on a fixed pin to achieve fixed connection of the telescopic support rod to the folding seat.

[0008] The present invention is further configured as follows: the snap-on assembly includes a snap-on disk whose axis coincides with the rotation center of the folding seat and is fixedly connected to the base; the snap-on disk is provided with a plurality of first snap-on holes evenly arranged along a circumferential direction; the folding seat is provided with a second snap-on hole that cooperates with the first snap-on hole; the first snap-on hole and the second snap-on hole are connected based on a snap-on pin so as to realize fixed snap-on connection of the folding seat to the base.

[0009] The present invention is further configured as follows: four groups of supporting legs are provided on the base, and a storage groove for accommodating the folding seat is provided at the bottom of the base.

[0010] The present invention is further configured as follows: the mounting locking assembly includes a mounting shaft rotatably connected to the base along an axis line perpendicular to the surface of the base, and a first abutment plate coaxially fixedly connected to the mounting shaft for abutting the outer end face of the automobile wheel hub, a second abutment plate detachably fixedly connected to the mounting shaft for abutting the inner end face of the automobile wheel hub, and a locking nut for locking and fixing the automobile wheel hub between the first abutment plate and the second abutment plate.

[0011] The present invention is further configured as follows: the rotation drive assembly includes a rotation drive motor positioned and connected to the base based on a positioning frame, and a clamping plate fixedly connected to the rotation drive motor in the positioning frame based on a locking bolt, a drive hole is coaxially opened at one end of the mounting shaft close to the base, a plurality of positioning holes are evenly opened on the drive hole along the circumferential direction, and a plurality of positioning blocks matching the positioning holes are evenly fixedly provided on the driving shaft of the rotation drive motor along the circumferential direction.

[0012] The present invention is further configured as follows: the first guide rail assembly includes a first guide rail inserted and fixedly connected to the base and a first sliding seat slidably connected to the first guide rail, the first sliding seat is fixedly connected to a sliding drive assembly that drives the first sliding seat to slide, the X-ray tube is fixedly connected to the first sliding seat, the second guide rail assembly includes a second guide rail fixedly connected to the base and a second sliding seat slidably connected to the second guide rail, and the first imaging plate can be folded and arranged on the second sliding seat.

[0013] The present invention is further configured as follows: the first guide rail is U-shaped, including a vertical guide portion fixedly connected to the base along a direction perpendicular to the base and a horizontal guide portion arranged along a horizontal direction, the vertical guide portion and the horizontal guide portion are connected based on an arc-shaped guide portion, the base is provided with a plug-in fixing groove for accommodating and fixing the first guide rail, the second guide rail is arranged along the horizontal direction and in parallel with the horizontal guide portion, and the second guide rail is fixedly connected to the horizontal guide portion based on a plurality of connecting columns.

[0014] The present invention is further configured as follows: the first sliding seat and the second sliding seat have the same structure, both comprising a mounting seat and sliding wheels symmetrically mounted on both sides of the mounting seat along the sliding direction; the sliding drive assembly comprises a sliding drive wheel rotatably connected to the mounting seat and a sliding drive motor that drives the sliding drive wheel to rotate.

[0015] The second object of the present invention is to provide a portable nondestructive testing method for automobile die castings, which has the advantages of simple structure and easy installation and transportation.

[0016] The above technical objectives of the present invention are achieved through the following technical solutions: a portable nondestructive testing method for automotive die castings, using a portable nondestructive testing device for automotive die castings as described in any of the above technical solutions; comprising:

[0017] Step 1, unfold the support legs arranged on the base and fix the support legs through the clamping assembly to keep the base horizontal and fixed;

[0018] Step 2: After the rotary drive assembly is mounted and fixed on the base, the automobile wheel hub is locked and fixed on the mounting locking assembly with the opening facing upward, and the first guide rail is inserted and fixed on the base;

[0019] Step 3: adjusting the position of the X-ray tube by the first guide rail assembly so that the X-ray tube faces the side wall of the automobile wheel hub and slides slowly in the vertical direction, and adjusting the position of the first imaging plate by the second guide rail assembly so that the first imaging plate and the X-ray tube are arranged front and back relative to each other, the rotation drive assembly drives the automobile wheel hub to rotate slowly, and the X-ray tube emits X-rays and projects them onto the first imaging plate, thereby realizing non-destructive testing of the side wall of the automobile wheel hub;

[0020] Step 4: After the side wall of the automobile wheel hub is inspected, the position of the X-ray tube is adjusted by the first guide rail assembly so that the X-ray tube faces the base and slides slowly in the horizontal direction. The X-ray tube emits X-rays and projects them onto the second imaging plate, thereby realizing non-destructive inspection of the end face of the automobile wheel hub;

[0021] Step 5: After the inspection is completed, remove the automobile wheel hub from the mounting locking assembly, remove the rotary drive assembly and the first guide rail from the base, and fold the support legs to the bottom of the base.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. A plurality of support legs are foldably arranged on the base based on the snap-fit ​​assembly, and a mounting locking assembly is arranged on the base, and a detachable rotating drive assembly is arranged on the base. At the same time, a first guide rail assembly is arranged, including a first guide rail inserted and fixed on the base, and a second guide rail is arranged, and the second guide rail is fixed on the horizontal guide portion of the first guide rail based on a connecting column. When non-destructive testing of the automobile wheel hub is required, the support legs are unfolded from the base, and then the rotating drive assembly and the first guide rail are installed on the base to complete the assembly of the non-destructive testing equipment. When it is necessary to transport it, it only needs to be disassembled from the base, which reduces the space occupation, has a simple structure, and is portable for installation and transportation;

[0024] 2. The first guide rail assembly and the second guide rail assembly are respectively provided with a first sliding seat and a second sliding seat on the first guide rail and the second guide rail, and a sliding drive assembly is provided on the first sliding seat, and a foldable first imaging plate is provided on the second sliding seat, and the first guide rail is provided with a vertical guide portion and a horizontal guide portion. When non-destructive detection is required for the side of the automobile wheel hub, the sliding drive assembly drives the first sliding seat and the X-ray tube fixed on the first sliding seat to slide on the vertical guide portion, and at the same time, the position of the second sliding seat on the second guide rail is adjusted so that the first imaging plate and the X-ray tube are aligned. The front and rear are arranged relatively to each other, and at this time, the X-ray tube emits X-rays while the automobile wheel hub rotates slowly and projects them onto the first imaging plate, thereby realizing non-destructive testing of the side wall of the automobile wheel hub. At the same time, when it is necessary to perform non-destructive testing on the end face of the automobile wheel hub, the first sliding seat is driven by the sliding drive assembly to slide to the horizontal guide position and slide slowly along the horizontal direction, and at the same time, the automobile wheel hub rotates slowly, and the X-ray tube emits X-rays vertically downward and projects them onto the second imaging plate, thereby realizing non-destructive testing of the end face of the automobile wheel hub. The structure is simple, and non-destructive testing can be performed on the side wall and end face of the automobile wheel hub while the automobile wheel hub rotates, and the detection range is wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0026] Figure 2 It is a schematic diagram of the overall structure explosion of this embodiment;

[0027] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0028] Figure 4 is a structural cross-sectional view of the clamping assembly and the supporting legs of this embodiment;

[0029] Figure 5 is a schematic diagram of the structure explosion of the rotary drive assembly of this embodiment;

[0030] Figure 6 yes Figure 5 A magnified schematic diagram of part B;

[0031] Figure 7 It is a schematic structural diagram of the first guide rail of this embodiment.

[0032] Figure numerals: 1, base; 11, plug-in fixing slot; 2, snap-on assembly; 21, snap-on plate; 22, first snap-on hole; 23, second snap-on hole; 24, snap-on latch; 3, support leg; 31, folding seat; 32, telescopic slide; 33, telescopic support rod; 34, anti-slip pad; 35, first plug hole; 36, second plug hole; 37, fixing latch; 38, storage slot; 4, installation locking assembly; 41, installation shaft; 42, first abutment plate; 43, second abutment plate; 44, locking nut; 5, rotation drive assembly; 51, positioning frame; 52, rotation drive motor; 53. Clamping plate; 54. Drive hole; 55. Positioning hole; 56. Positioning block; 6. First guide rail assembly; 61. First guide rail; 611. Vertical guide portion; 612. Horizontal guide portion; 613. Arc guide portion; 62. First sliding seat; 621. Mounting seat; 622. Sliding wheel; 63. Sliding drive assembly; 631. Sliding drive wheel; 632. Sliding drive motor; 7. X-ray tube; 8. Second guide rail assembly; 81. Second guide rail; 82. Second sliding seat; 83. Connecting column; 9. First imaging plate; 10. Second imaging plate. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] Embodiment 1:

[0035] refer to Figures 1 to 7 A portable nondestructive testing device for automobile die castings comprises a base 1 arranged in a horizontal direction, a plurality of supporting legs 3 are foldably provided on the base 1 based on a clamping assembly 2, a mounting locking assembly 4 for fixing an automobile wheel hub is rotatably connected at the center of the base 1, and a rotating driving assembly 5 for driving the mounting locking assembly 4 to rotate is detachably fixed, the automobile wheel hub is fixed on the mounting locking assembly 4 and driven by the rotating driving assembly 5 to achieve slow rotation, an X-ray tube 7 is slidably connected to the base 1 based on a first guide rail assembly 6, and a first imaging plate 9 is slidably connected to the base 1 based on a second guide rail assembly 8, which is arranged front and rear opposite to the X-ray tube 7 and is used for nondestructive testing of the side of the automobile wheel hub, and a second imaging plate 10 is fixedly connected to the base 1 and is arranged up and down opposite to the X-ray tube 7 and is used for nondestructive testing of the end face of the automobile wheel hub.

[0036] refer to Figure 1 and Figure 4Specifically, the supporting leg 3 includes a folding seat 31 rotatably connected to the base 1 and a telescopic slide groove 32 provided in the folding seat 31, a telescopic support rod 33 is slidably connected to the telescopic slide groove 32, and an anti-slip pad 34 is fixedly connected to the end of the telescopic support rod 33 away from the folding seat 31 to ensure the stability of the base 1. A plurality of first sockets 35 and second sockets 36 are evenly spaced along the telescopic direction on the folding seat 31 and the telescopic support rod 33, and the first sockets 35 and the second sockets 36 are connected based on a fixed pin 37 to fix the telescopic support rod 33 to the folding seat 31. When the height of the base 1 relative to the horizontal plane needs to be adjusted, the first socket 35 and the second socket are connected through the fixed pin 37 after adjusting the position of the telescopic support rod 33 in the telescopic slide groove. 36 can achieve fixation and convenient adjustment, and can effectively reduce the space occupied by the supporting leg 3. The snap-in assembly 2 includes a snap-in disk 21 whose axis coincides with the rotation center of the folding seat 31 and is fixedly connected to the base 1. A plurality of first snap-in holes 22 are evenly provided on the snap-in disk 21 along the circumferential direction, and a second snap-in hole 23 cooperating with the first snap-in hole 22 is provided on the folding seat 31. The first snap-in hole 22 and the second snap-in hole 23 are connected based on a snap-in pin 24 to achieve fixed snap-in connection with the folding seat 31 on the base 1. When it is necessary to adjust the angle between the supporting leg 3 and the base 1 to obtain a better supporting effect, the folding seat 31 is driven to rotate on the base 1, and after the adjustment is completed, the snap-in pin 24 is used to connect the first snap-in hole 22 and the second snap-in hole 23 to achieve locking. In this embodiment, four groups of supporting legs 3 are provided on the base 1 , and a storage groove 38 for accommodating the folding seat 31 is opened at the bottom of the base 1 . The supporting legs 3 are folded and stored in the storage groove 38 , thereby reducing the space occupied by the supporting legs 3 .

[0037] refer to Figure 1 , Figure 2 , Figure 5 and Figure 6Specifically, the installation locking assembly 4 includes an installation shaft 41 connected to the base 1 with an axis line rotating along a direction perpendicular to the surface of the base 1, and a first abutment plate 42 coaxially fixedly connected to the installation shaft 41 for abutting the outer end face of the automobile wheel hub. A second abutment plate 43 for abutting the inner end face of the automobile wheel hub and a locking nut 44 for locking and fixing the automobile wheel hub between the first abutment plate 42 and the second abutment plate 43 can be detachably fixedly connected to the installation shaft 41. When installing the automobile wheel hub, first install the automobile wheel hub on the installation shaft 41 with the opening facing so that the outer end face of the automobile wheel hub abuts against the first abutment plate 42, then sleeve the second abutment plate 43 on the installation shaft 41 so that the second abutment plate 43 abuts against the inner end face of the automobile wheel hub, and finally lock the locking nut 44. The rotation drive assembly 5 includes a base A rotary drive motor 52 is positioned and connected to the base 1 on the positioning frame 51, and a clamping plate 53 is used to fix the rotary drive motor 52 to the positioning frame 51 based on a locking bolt. A drive hole 54 is coaxially opened at one end of the mounting shaft 41 close to the base 1, and a plurality of positioning holes 55 are evenly opened on the drive hole 54 along the circumferential direction. A plurality of positioning blocks 56 cooperating with the positioning holes 55 are evenly fixed on the driving shaft of the rotary drive motor 52 along the circumferential direction. When installing the rotary drive motor 52, first position the rotary drive motor 52 and install it in the positioning frame 51, insert the driving shaft of the rotary motor into the driving hole 54, and ensure that the positioning block 56 cooperates with the positioning hole 55. Then, the clamping plate 53 is used to fix the rotary drive motor 52 in the positioning frame 51. The operation is simple, and the function of being detachable is taken into account to improve portability.

[0038] refer to Figure 3 and Figure 7Specifically, the first guide rail assembly 6 includes a first guide rail 61 inserted and fixedly connected to the base 1 and a first sliding seat 62 slidably connected to the first guide rail 61. The base 1 is provided with an insertion fixing groove 11 for accommodating and fixing the first guide rail 61. The first guide rail assembly 6 can be installed by inserting the first guide rail 61 into the insertion fixing groove 11, thereby improving portability. A sliding drive assembly 63 for driving the first sliding seat 62 to slide is fixedly connected to the first sliding seat 62. The X-ray tube 7 is fixedly connected to the first sliding seat 62, the second guide rail assembly 8 includes a second guide rail 81 fixedly connected to the base 1 and a second sliding seat 82 slidably connected to the second guide rail 81, the first imaging plate 9 can be folded and arranged on the second sliding seat 82, the first guide rail 61 is arranged in a U shape, including a vertical guide portion 611 fixedly connected to the base 1 in a direction perpendicular to the base 1 and a horizontal guide portion 612 arranged in a horizontal direction, the vertical guide portion 611 and the horizontal guide portion 612 are connected based on an arc guide portion 613, the second guide rail 81 The second guide rail 81 is arranged in parallel with the horizontal guide part 612 in the horizontal direction. The second guide rail 81 is fixedly connected to the horizontal guide part 612 in parallel based on a plurality of connecting columns 83. The first sliding seat 62 and the second sliding seat 82 have the same structure and both include a mounting seat 621 and sliding wheels 622 symmetrically installed on both sides of the mounting seat 621 along the sliding direction. The sliding drive assembly 63 includes a sliding drive wheel 631 rotatably connected to the mounting seat 621 and a sliding drive motor 632 that drives the sliding drive wheel 631 to rotate. The sliding wheel 622 installed on the mounting seat 621 ensures that the mounting seat 621 can The sliding drive motor 632 drives the sliding drive wheel 631 to rotate, and the friction between the sliding drive wheel 631 and the guide rail is used to drive the mounting seat 621 to slide on the guide rail. When the side of the automobile wheel hub needs to be non-destructively detected, the sliding drive assembly 63 drives the first sliding seat 62 and the X-ray tube 7 fixed on the first sliding seat 62 to slide on the vertical guide portion 611. At the same time, the second sliding seat 82 is adjusted on the second guide rail 81. The position of the first imaging plate 9 and the X-ray tube 7 is arranged relative to each other front and back. At this time, the X-ray tube 7 emits X-rays and projects them onto the first imaging plate 9 while the automobile wheel hub rotates slowly, thereby realizing non-destructive testing of the side wall of the automobile wheel hub. At the same time, when it is necessary to perform non-destructive testing on the end face of the automobile wheel hub, the first sliding seat 62 is driven by the sliding drive assembly 63 to slide to the position of the horizontal guide portion 612 and slide slowly in the horizontal direction. At the same time, the automobile wheel hub rotates slowly, and the X-ray tube 7 emits X-rays vertically downward and projects them onto the second imaging plate 10, thereby realizing non-destructive testing of the end face of the automobile wheel hub.

[0039] Embodiment 2:

[0040] A portable nondestructive testing method for automobile die castings, using a portable nondestructive testing device for automobile die castings as shown in Example 1, comprising:

[0041] Step 1, unfold the support legs 3 arranged on the base 1 and fix the support legs 3 through the clamping assembly 2 to achieve the base 1 being kept horizontally fixed;

[0042] Step 2: After the rotation drive assembly 5 is mounted and fixed on the base 1, the automobile wheel hub is locked and fixed on the mounting locking assembly 4 with the opening facing upward, and the first guide rail 61 is inserted and fixed on the base 1;

[0043] Step 3: The position of the X-ray tube 7 is adjusted by the first guide rail assembly 6 so that the X-ray tube 7 faces the side wall of the automobile wheel hub and slides slowly in the vertical direction, and the position of the first imaging plate 9 is adjusted by the second guide rail assembly 8 so that the first imaging plate 9 and the X-ray tube 7 are arranged front and back relative to each other, and the rotation drive assembly 5 drives the automobile wheel hub to rotate slowly, and the X-ray tube 7 emits X-rays and projects them onto the first imaging plate 9, thereby realizing non-destructive testing of the side wall of the automobile wheel hub;

[0044] Step 4: After the side wall of the automobile wheel hub is inspected, the position of the X-ray tube 7 is adjusted by the first guide rail assembly 6 so that the X-ray tube 7 faces the base 1 and slides slowly in the horizontal direction. The X-ray tube 7 emits X-rays and projects them onto the second imaging plate 10, thereby realizing non-destructive inspection of the end face of the automobile wheel hub;

[0045] Step 5: After the inspection is completed, the automobile wheel hub is removed from the mounting locking assembly 4, and the rotation drive assembly 5 and the first guide rail 61 are removed from the base 1, and the support leg 3 is folded to the bottom of the base 1.

[0046] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A portable non-destructive testing device for automotive die castings, comprising a base (1); characterized in that: The base (1) is foldably provided with a plurality of supporting legs (3) based on the clamping assembly (2); the base (1) is centrally rotatably connected with a mounting locking assembly (4) for fixing the automobile wheel hub and is detachably fixedly provided with a rotating driving assembly (5) for driving the mounting locking assembly (4) to rotate; the base (1) is slidably connected with an X-ray tube (7) based on a first guide rail assembly (6); and the base (1) is also slidably connected with a first imaging plate (9) arranged frontally opposite to the X-ray tube (7) and used for performing non-destructive testing on the side surface of the automobile wheel hub based on a second guide rail assembly (8); and the base (1) is fixedly connected with a second imaging plate (10) arranged vertically opposite to the X-ray tube (7) and used for performing non-destructive testing on the end surface of the automobile wheel hub; The first guide rail assembly (6) comprises a first guide rail (61) inserted and fixedly connected to the base (1) and a first sliding seat (62) slidably connected to the first guide rail (61); the first sliding seat (62) is fixedly connected to a sliding drive assembly (63) for driving the first sliding seat (62) to slide; the X-ray tube (7) is fixedly connected to the first sliding seat (62); the second guide rail assembly (8) comprises a second guide rail (81) fixedly connected to the base (1) and a second sliding seat (82) slidably connected to the second guide rail (81); the first imaging plate (9) can be folded and arranged on the second sliding seat (82); The first guide rail (61) is arranged in a U shape, comprising a vertical guide portion (611) fixedly connected to the base (1) in a direction perpendicular to the base (1) and a horizontal guide portion (612) arranged in a horizontal direction, the vertical guide portion (611) and the horizontal guide portion (612) being connected based on an arc-shaped guide portion (613), the base (1) being provided with an insertion fixing groove (11) for accommodating and fixing the first guide rail (61), the second guide rail (81) being arranged in a horizontal direction and parallel to the horizontal guide portion (612), the second guide rail (81) being fixedly connected to the horizontal guide portion (612) based on a plurality of connecting columns (83); The first sliding seat (62) and the second sliding seat (82) have the same structure, and both include a mounting seat (621) and sliding wheels (622) symmetrically mounted on both sides of the mounting seat (621) along the sliding direction, and the sliding drive assembly (63) includes a sliding drive wheel (631) rotatably connected to the mounting seat (621) and a sliding drive motor (632) that drives the sliding drive wheel (631) to rotate.

2. A portable nondestructive testing device for automotive die castings according to claim 1, characterized in that: The support leg (3) comprises a folding seat (31) rotatably connected to the base (1) and a telescopic slide groove (32) provided in the folding seat (31); the telescopic slide groove (32) is slidably connected to a telescopic support rod (33); one end of the telescopic support rod (33) away from the folding seat (31) is fixedly connected to an anti-slip pad (34); a plurality of first plug holes (35) and second plug holes (36) are evenly spaced along the telescopic direction on the folding seat (31) and the telescopic support rod (33); the first plug holes (35) and the second plug holes (36) are connected by a fixed pin (37) to achieve fixed connection of the telescopic support rod (33) to the folding seat (31).

3. A portable nondestructive testing device for automotive die castings according to claim 2, characterized in that: The snap-on assembly (2) comprises a snap-on disk (21) whose axis coincides with the rotation center of the folding seat (31) and is fixedly connected to the base (1); the snap-on disk (21) is provided with a plurality of first snap-on holes (22) evenly arranged along a circumferential direction; the folding seat (31) is provided with a second snap-on hole (23) cooperating with the first snap-on hole (22); the first snap-on hole (22) and the second snap-on hole (23) are connected by a snap-on pin (24) so ​​as to realize the fixed snap-on connection of the folding seat (31) to the base (1).

4. A portable nondestructive testing device for automotive die castings according to claim 2, characterized in that: The base (1) is provided with four groups of supporting legs (3), and the bottom of the base (1) is provided with a storage groove (38) for accommodating the folding seat (31).

5. The portable nondestructive testing device for automobile die castings according to claim 1 is characterized in that: The mounting locking assembly (4) comprises a mounting shaft (41) rotatably connected to the base (1) along a direction perpendicular to the surface of the base (1) and a first abutment plate (42) coaxially fixedly connected to the mounting shaft (41) for abutting against the outer end surface of the automobile wheel hub, a second abutment plate (43) detachably fixedly connected to the mounting shaft (41) for abutting against the inner end surface of the automobile wheel hub, and a locking nut (44) for locking and fixing the automobile wheel hub between the first abutment plate (42) and the second abutment plate (43).

6. A portable nondestructive testing device for automotive die castings according to claim 5, characterized in that: The rotary drive assembly (5) comprises a rotary drive motor (52) which is positioned and connected to the base (1) based on a positioning frame (51) and a clamping plate (53) which is fixedly connected to the rotary drive motor (52) in the positioning frame (51) based on a locking bolt. A drive hole (54) is coaxially formed at one end of the mounting shaft (41) close to the base (1), and a plurality of positioning holes (55) are uniformly formed on the drive hole (54) along a circumferential direction. A plurality of positioning blocks (56) which cooperate with the positioning holes (55) are uniformly fixedly formed on the drive shaft of the rotary drive motor (52) along a circumferential direction.

7. A portable nondestructive testing method for automobile die castings, using a portable nondestructive testing device for automobile die castings as described in any one of claims 1 to 6; characterized in that: include: Step 1: unfold the support legs (3) arranged on the base (1) and fix the support legs (3) through the clamping assembly (2) so as to keep the base (1) horizontal and fixed; Step 2: After the rotation drive assembly (5) is mounted and fixed on the base (1), the automobile wheel hub is locked and fixed on the mounting locking assembly (4) with the opening facing upward, and the first guide rail (61) is inserted and fixed on the base (1); Step 3: adjusting the position of the X-ray tube (7) by the first guide rail assembly (6) so that the X-ray tube (7) faces the side wall of the automobile wheel hub and slides slowly in the vertical direction, and adjusting the position of the first imaging plate (9) by the second guide rail assembly (8) so that the first imaging plate (9) and the X-ray tube (7) are arranged relative to each other in front and back, and the rotation drive assembly (5) drives the automobile wheel hub to rotate slowly, and the X-ray tube (7) emits X-rays and projects them onto the first imaging plate (9), thereby realizing non-destructive testing of the side wall of the automobile wheel hub; Step 4: After the side wall of the automobile wheel hub is inspected, the position of the X-ray tube (7) is adjusted by the first guide rail assembly (6) so that the X-ray tube (7) faces the base (1) and slides slowly in the horizontal direction, and the X-ray tube (7) emits X-rays and projects them onto the second imaging plate (10), thereby realizing non-destructive inspection of the end face of the automobile wheel hub; Step 5: After the inspection is completed, the automobile wheel hub is removed from the mounting locking assembly (4), and the rotary drive assembly (5) and the first guide rail (61) are removed from the base (1), and the support leg (3) is folded to the bottom of the base (1).

Images