Automobile part welding firmness detection device

Abstract

The utility model discloses an automobile part welding firmness detection device, and relates to the technical field of automobile part detection. The automobile part welding firmness detection device comprises a detection table, an abutting block is arranged on the upper surface of the detection table so that a to-be-detected part can be conveniently placed, a fixing frame is fixed to the detection table, two movable grooves are oppositely formed in the top face in the fixing frame, first lead screws are arranged in the movable grooves, and sliding blocks are arranged on the first lead screws in a threaded mode; fixing plates are movably arranged on the lower sides of the sliding blocks, connecting rods are hinged between the sliding blocks and the fixing plates, an adjusting assembly is arranged between the left fixing plate and the right fixing plate, two pressing blocks are arranged on the adjusting assembly, the two sliding blocks are conveniently adjusted to be away from each other through a first lead screw, and under the action of the connecting rods and the fixing plates, the pressing blocks are conveniently driven to move downwards; the two sides of the part are pressed downwards, the purpose of detecting the welding position is achieved, the flaw detector body is movably arranged on the upper side of the abutting block, and the interior of the welding position can be conveniently detected.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts detection, in particular to a welding firmness detection device for automobile parts. Background Art

[0002] Auto parts, as the name suggests, refer to various parts used in automobile manufacturing. Parts often need to be welded during the production and processing. In order to ensure the welding quality of parts, the firmness of the welds of the parts needs to be tested after welding to facilitate further processing and later use of the parts.

[0003] Publication number "CN219512003U" discloses "a device for testing the welding firmness of automobile parts". When the device is used for testing, the operator needs to place the welding point directly above the stop block, and control the hydraulic telescopic rod through the hydraulic device to press down the two ends of the test piece. During the pressing process, the first spring of the placement table can enter the inner surface of the base, and the stop block interacts with the two hydraulic telescopic rods to generate high-pressure detection on the welding point. The industrial camera can detect whether the welding point of the test piece is broken. This design can better perform high-pressure detection on the welding point of the test piece. Before testing, the threaded rod is rotated by turning the adjusting disk, and the threaded slide can slide inside the slide groove to control the distance between the two hydraulic telescopic rods and the stop block. This design can adapt to test pieces of different sizes by adjusting the sliding of the hydraulic telescopic rod. At the same time, protective glass is provided to protect the test personnel from injury.

[0004] The above technical solution still has the following shortcomings during implementation:

[0005] Industrial cameras can only detect whether the outside of the weld is broken, but cannot detect cracks inside the weld, resulting in poor detection of the weld firmness of components. In addition, when adjusting the distance between the two hydraulic telescopic rods, workers are required to turn the adjustment dials on both sides in turn, which is cumbersome to operate and affects the detection of the weld firmness of components.

[0006] In view of the above problems, we propose a device for detecting the welding firmness of automobile parts. Utility Model Content

[0007] Technical Solution

[0008] In order to solve the above technical problems, the utility model provides a welding firmness detection device for automobile parts, including a detection platform, a stop block is arranged at the center of the upper surface of the detection platform, a fixing frame is fixed on the detection platform, two movable grooves are relatively opened on the inner top surface of the fixing frame, a first screw rod is arranged in the movable groove, a slider is threadedly arranged on the first screw rod, a fixing plate is movably arranged on the lower side of the slider, a guide mechanism is arranged on one side of the fixing plate, a connecting rod is hinged between the slider and the fixing plate, an adjustment component is arranged between the left and right fixing plates, two pressure blocks are arranged on the adjustment component, a second screw rod is arranged on the inner upper part of the fixing frame, a mounting block is threadedly arranged on the second screw rod, a camera is installed on one side of the bottom of the mounting block, an electric push rod is arranged on the other side of the bottom of the mounting block, and a flaw detector body is installed on the telescopic end of the electric push rod.

[0009] The adjustment assembly includes a screw rod, a fixing rod and a first motor. The screw rod is arranged on the rear side between the left and right fixing plates, the fixing rod is arranged on the front side between the two fixing plates, the first motor is installed on the right fixing plate, and the output shaft of the first motor is connected to the right end of the screw rod. The two pressing blocks are both threadedly matched with the screw rod, the pressing blocks are slidably matched with the fixing rod, and the thread grooves of the threaded holes on the two pressing blocks are in opposite directions.

[0010] The guide mechanism includes a guide rod, a guide block and a reset spring. The two guide rods are relatively fixed on the left and right sides of the upper surface of the detection platform. The guide blocks are slidably mounted on the guide rods. The two guide blocks are respectively fixedly connected to the left and right fixed plates. The reset spring is sleeved on the outside of the guide rods. The upper and lower ends of the reset spring are respectively fixedly connected to the fixed frame and the guide blocks.

[0011] Two support plates are relatively fixed on the inner top surface of the fixed frame, the second screw rod is arranged between the two support plates, a sliding rod is arranged on the upper side of the second screw rod, the sliding rod passes through the mounting block, the mounting block and the sliding rod are slidably matched, and a second motor is installed on the back of the rear support plate, and the output shaft of the second motor is connected to the rear end of the second screw rod.

[0012] The detection platform is provided with two grooves opposite to each other, a placement plate is movably arranged in the groove, and a plurality of first springs are connected between the bottom of the placement plate and the inner wall of the groove.

[0013] Transparent plates are movably provided on both the front and rear sides of the fixing frame, a connecting frame is fixed between the two transparent plates, a hydraulic rod is provided on the top of the fixing frame, the telescopic end of the hydraulic rod is connected to the connecting frame, the left and right first screw rods are fixedly connected by a rotating shaft, a third motor is provided on one side of the fixing frame, the output shaft of the third motor is connected to the right end of the first screw rod on the right side, and the thread directions of the surfaces of the two first screw rods are opposite, a limiting groove is provided on the top of the movable groove, and a limiting block is fixed on the top of the sliding block to cooperate with the limiting groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model facilitates the adjustment of the two sliders away from each other through the threaded cooperation of the first screw rod and the slider, and facilitates the articulation of the two ends of the connecting rod to squeeze the fixing plate downward, thereby driving the pressing block to move downward, and pressing down the two ends of the automobile parts. Combined with the abutment block, a high-pressure detection is generated at the welding place, wherein the camera collects image data of the welding place of the automobile parts, and it is convenient to observe whether the automobile parts are broken. At the same time, under the threaded cooperation of the second screw rod and the mounting block, it is convenient to adjust the mounting block to move forward, thereby driving the flaw detector body to move to the top of the automobile parts. Combined with the electric push rod, the flaw detector body is adjusted to move downward, and the probe of the flaw detector body is driven close to the welding place of the automobile parts, which is convenient for detecting the inside of the welding place of the automobile parts, and can detect whether cracks are generated inside the welding place of the parts, effectively improving the detection effect of the firmness of the welding place of the automobile parts, and solving the problem that the existing technology can only detect whether the outside of the welding place is broken by the industrial camera, but cannot detect the cracks inside the welding place, resulting in poor detection effect of the welding firmness of the parts;

[0016] The first motor is convenient for driving the screw to rotate. With the thread cooperation between the screw and the pressure block, and the sliding cooperation between the pressure block and the fixed rod, it is convenient to flexibly adjust the left and right pressure blocks to be close to or away from each other, which is suitable for the inspection and use of automobile parts of different sizes. There is no need for manual adjustment by staff, which solves the problem in the prior art that when adjusting the distance between the two hydraulic telescopic rods, the staff needs to turn the adjustment disks on both sides in turn, which is a more troublesome operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 for Figure 2 Structural diagram of the middle section AA;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure of the middle section BB;

[0021] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0022] Figure 6 for Figure 4 Schematic diagram of the enlarged structure at D in the middle;

[0023] Figure 7 It is a schematic diagram of the structure inside the fixing frame of the utility model;

[0024] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at E in the middle;

[0025] Fig. 9 for Figure 7 Schematic diagram of the structure from another perspective.

[0026] The markings in the attached drawings are: 1. testing table; 2. stop block; 3. fixing frame; 4. movable groove; 5. first screw rod; 6. slider; 7. guide rod; 8. guide block; 9. fixing plate; 10. connecting rod; 11. pressure block; 12. second screw rod; 13. mounting block; 14. camera; 15. electric push rod; 16. flaw detector body; 17. screw rod; 18. fixing rod; 19. first motor; 20. second motor; 21. first spring; 22. placement plate; 23. transparent plate; 24. hydraulic rod; 25. third motor; 26. reset spring. DETAILED DESCRIPTION

[0027] This specific embodiment is a welding firmness detection device for automobile parts. Figure 1-Figure 9 As shown, the welding firmness detection device for automobile parts comprises a detection platform 1, a stop block 2 is arranged at the center of the upper surface of the detection platform 1, a fixing frame 3 is fixed on the detection platform 1, two movable grooves 4 are relatively opened on the inner top surface of the fixing frame 3, a first screw rod 5 is arranged in the movable groove 4, a slider 6 is threadedly arranged on the first screw rod 5, a fixing plate 9 is movably arranged on the lower side of the slider 6, a guide mechanism is arranged on one side of the fixing plate 9, a connecting rod 10 is hinged between the slider 6 and the fixing plate 9, an adjustment component is arranged between the left and right fixing plates 9, two pressing blocks 11 are arranged on the adjustment component, a second screw rod 12 is arranged on the upper inner side of the fixing frame 3, a mounting block 13 is threadedly arranged on the second screw rod 12, a camera 14 is installed on one side of the bottom of the mounting block 13, an electric push rod 15 is arranged on the other side of the bottom of the mounting block 13, and a flaw detector body 16 is installed on the telescopic end of the electric push rod 15.

[0028] Through the threaded cooperation of the first screw rod 5 and the slider 6, it is convenient to adjust the two sliders 6 to move away from each other. Combined with the hinged effect at both ends of the connecting rod 10, it is convenient to squeeze the fixing plate 9 downward, thereby driving the pressing block 11 to move downward, and press down the two ends of the automobile parts. Combined with the stop block 2, a high-pressure detection is generated at the welding position, wherein the camera 14 collects image data of the welding position of the automobile parts, which is convenient for observing whether the automobile parts are broken. At the same time, under the threaded cooperation of the second screw rod 12 and the mounting block 13, it is convenient to adjust the mounting block 13 to move forward, thereby driving the flaw detector body 16 to move to the top of the automobile parts. Combined with the electric push rod 15, the flaw detector body 16 is adjusted to move downward, and the probe of the flaw detector body 16 is driven close to the welding position of the automobile parts, which is convenient for detecting the inside of the welding position of the automobile parts, and whether cracks are generated inside the welding position of the parts, which effectively improves the detection effect of the firmness of the welding position of the automobile parts.

[0029] The adjustment component includes a screw 17, a fixing rod 18 and a first motor 19. The screw 17 is arranged on the rear side between the left and right fixing plates 9, the fixing rod 18 is arranged on the front side between the two fixing plates 9, the first motor 19 is installed on the fixing plate 9 on the right, and the output shaft of the first motor 19 is connected to the right end of the screw 17. The two pressing blocks 11 are threadedly matched with the screw 17, the pressing blocks 11 are slidably matched with the fixing rod 18, and the thread grooves of the threaded holes on the two pressing blocks 11 are in opposite directions. The screw 17 can be driven to rotate by the first motor 19. Under the threaded match between the screw 17 and the pressing block 11, and the sliding match between the pressing block 11 and the fixing rod 18, it is convenient to flexibly adjust the mutual approach or distance of the left and right pressing blocks 11, so as to adapt to the detection and use of automobile parts of different sizes.

[0030] The guide mechanism includes a guide rod 7, a guide block 8 and a reset spring 26. The two guide rods 7 are relatively fixed on the left and right sides of the upper surface of the detection platform 1. The guide block 8 is slidably mounted on the guide rod 7. The two guide blocks 8 are respectively fixedly connected to the left and right fixed plates 9. The reset spring 26 is sleeved on the outside of the guide rod 7. The upper and lower ends of the reset spring 26 are respectively fixedly connected to the fixed frame 3 and the guide block 8. Through the sliding cooperation between the guide block 8 and the guide rod 7, the fixed plate 9 is effectively limited and guided, ensuring the stability of the up and down movement of the adjustment block 11 before and after the detection. Under the elastic action of the reset spring 26, it is convenient to pull the guide block 8 to move upward when adjusting the two sliders 6 to approach each other, which facilitates the fixed plate 9 to drive the pressure block 11 to return to its initial position.

[0031] Two support plates are relatively fixed on the internal top surface of the fixed frame 3, and the second screw rod 12 is arranged between the two support plates. A sliding rod is arranged on the upper side of the second screw rod 12, and the sliding rod passes through the mounting block 13. The mounting block 13 slides with the sliding rod. A second motor 20 is installed on the back of the rear support plate. The output shaft of the second motor 20 is connected to the rear end of the second screw rod 12. The sliding rod effectively limits and guides the mounting block 13, thereby ensuring the stability of the movement process of the flaw detector body 16.

[0032] Two grooves are oppositely formed on the detection platform 1 , and a placement plate 22 is movably arranged in the groove. A plurality of first springs 21 are connected between the bottom of the placement plate 22 and the inner wall of the groove.

[0033] Transparent plates 23 are movably provided on both the front and rear sides of the fixing frame 3, a connecting frame is fixed between the two transparent plates 23, a hydraulic rod 24 is provided on the top of the fixing frame 3, and the telescopic end of the hydraulic rod 24 is connected to the connecting frame. The hydraulic rod 24 is combined with the connecting frame to facilitate the adjustment of the up and down movement of the two transparent plates 23, so that it is convenient to shield the front and rear sides of the fixing frame 3 when implementing the detection operation, and effectively play the role of isolation and protection for the detection process. The left and right first screw rods 5 are fixedly connected by a rotating shaft, and a third motor 25 is provided on one side of the fixing frame 3. The output shaft of the third motor 25 is connected to the right end of the first screw rod 5 on the right side, and the surface threads of the two first screw rods 5 are in opposite directions. A limiting groove is provided on the top of the movable groove 4, and a limiting block is fixed on the top of the slider 6, which cooperates with the limiting groove, effectively limits and guides the slider 6, and ensures the stability of the left and right movement of the slider 6.

[0034] Example:

[0035] When in use, first place the automobile parts to be inspected on the placement plates 22 on both sides, and place the welding part of the automobile parts directly above the stop block 2, and start the first motor 19 at the same time, drive the screw 17 to rotate through the first motor 19, and adjust the two pressing blocks 11 to stably move closer to or farther from each other to adapt to the actual size of the automobile parts;

[0036] After the spacing between the two pressing blocks 11 is adjusted, the first motor 19 stops running, drives the hydraulic rod 24 to contract, and drives the two transparent plates 23 to move downward until the transparent plates 23 are completely blocked on both sides of the fixing frame 3, and then starts the third motor 25, and drives the first screw rod 5 on the right side to rotate through the third motor 25. Under the action of the rotating shaft, the two first screw rods 5 are driven to rotate synchronously. Combined with the opposite directions of the thread grooves on the surfaces of the two first screw rods 5, and the mutual cooperation between the limit block and the limit groove, the two sliders 6 are driven to move away from each other. Under the hinged action at both ends of the connecting rod 10, and the sliding cooperation between the guide block 8 and the guide rod 7, the fixing plate 9 is pressed downward in the vertical direction, and the reset spring 26 is stretched. Through the downward movement of the fixing plates 9 on both sides, the pressing block 11 is driven to move downward, and the two ends of the automobile parts are pressed downward. During the pressing process, the placing plate 22 can compress the first spring 21 into the groove, and the stop block 2 interacts with the two pressing blocks 11 to generate high pressure detection at the welding position;

[0037] The camera 14 can detect whether the welding part is broken. After the camera 14 completes the image acquisition of the welding part of the automobile part, the second motor 20 is started, and the second screw rod 12 is driven to rotate by the second motor 20. Under the thread cooperation between the second screw rod 12 and the mounting block 13, the mounting block 13 is driven to move forward until the flaw detector body 16 is driven to move to the top of the welding part of the automobile part. Then, the electric push rod 15 is started, and the flaw detector body 16 is pushed downward by the electric push rod 15 until the probe of the flaw detector body 16 contacts the welding part of the automobile part, and the flaw detector body 16 is started to detect the inside of the welding part of the automobile part. At the same time, the second motor 20 continues to run, driving the probe of the flaw detector body 16 to move along the welding part of the part, and comprehensively detecting the welding part to avoid cracks inside the welding part of the part, which cannot be detected by the industrial camera and affect the detection effect of the welding firmness of the part.

[0038] Compared with the prior art, the utility model drives the screw rod 17 to rotate through the first motor 19, and with the cooperation of the fixed rod 18, adjusts the mutual approach or distance of the left and right pressure blocks 11, without manual adjustment by the staff, which solves the problem that when adjusting the spacing between the two hydraulic telescopic rods in the prior art, the staff needs to turn the adjustment disks on both sides in turn, which is a relatively troublesome operation. At the same time, after detecting whether the welding part of the automobile part is broken through the camera 14, with the cooperation of the second motor 20, the second screw rod 12, the mounting block 13, the electric push rod 15 and the flaw detector body 16, whether the internal cracks of the welding part of the automobile part are detected, which effectively improves the detection effect, and solves the problem that the industrial camera in the prior art can only detect whether the external part of the welding part is broken, but cannot detect the cracks inside the welding part, resulting in poor detection effect of the welding firmness of the parts, and effectively improves the detection effect of the welding firmness detection of automobile parts.

[0039] It should be further explained that the installation structure, connection method or setting method of each component in the utility model are all common mechanical methods, and they can be implemented as long as they can achieve their beneficial effects. At the same time, the electric push rod 15, the flaw detector body 16, the first motor 19, the second motor 20 and the third motor 25 in the utility model are all purchased on the market, and technical personnel in this field can install and use them according to requirements.

[0040] All technical features in this embodiment can be freely combined according to actual needs.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for testing the welding firmness of automobile parts, comprising a testing platform (1), wherein a stop block (2) is arranged at the center of the upper surface of the testing platform (1), characterized in that: A fixing frame (3) is fixed on the detection platform (1), and two movable grooves (4) are arranged on the top surface of the fixing frame (3) opposite to each other. A first screw rod (5) is arranged in the movable groove (4), and a slider (6) is threadedly arranged on the first screw rod (5). A fixing plate (9) is movably arranged on the lower side of the slider (6), and a guide mechanism is arranged on one side of the fixing plate (9). A connecting rod (10) is hingedly connected between the slider (6) and the fixing plate (9), and an adjustment component is arranged between the left and right fixing plates (9). Two pressing blocks (11) are arranged on the adjustment component. A second screw rod (12) is arranged on the upper inner side of the fixing frame (3), and a mounting block (13) is threadedly arranged on the second screw rod (12). A camera (14) is installed on one side of the bottom of the mounting block (13), and an electric push rod (15) is arranged on the other side of the bottom of the mounting block (13). The telescopic end of the electric push rod (15) is installed with a flaw detector body (16).

2. The device for detecting the welding firmness of automobile parts according to claim 1, characterized in that: The adjustment assembly comprises a screw rod (17), a fixing rod (18) and a first motor (19); the screw rod (17) is arranged at the rear side between the left and right fixing plates (9); the fixing rod (18) is arranged at the front side between the two fixing plates (9); the first motor (19) is mounted on the fixing plate (9) on the right side; and the output shaft of the first motor (19) is connected to the right end of the screw rod (17); the two pressing blocks (11) are both threadedly matched with the screw rod (17); the pressing blocks (11) are slidably matched with the fixing rod (18); and the thread grooves of the threaded holes on the two pressing blocks (11) are in opposite directions.

3. The device for detecting the welding firmness of automobile parts according to claim 2, characterized in that: The guide mechanism comprises a guide rod (7), a guide block (8) and a return spring (26); the two guide rods (7) are relatively fixed on the left and right sides of the upper surface of the detection platform (1); the guide block (8) is slidably sleeved on the guide rod (7); the two guide blocks (8) are respectively fixedly connected to the left and right fixed plates (9); the return spring (26) is sleeved on the outside of the guide rod (7); and the upper and lower ends of the return spring (26) are respectively fixedly connected to the fixed frame (3) and the guide block (8).

4. The device for detecting the welding firmness of automobile parts according to claim 3, characterized in that: Two support plates are relatively fixed on the inner top surface of the fixing frame (3), the second screw rod (12) is arranged between the two support plates, a sliding rod is arranged on the upper side of the second screw rod (12), the sliding rod passes through the mounting block (13), the mounting block (13) and the sliding rod are slidably matched, and a second motor (20) is installed on the back of the rear support plate, and the output shaft of the second motor (20) is connected to the rear end of the second screw rod (12).

5. The device for detecting the welding firmness of automobile parts according to claim 4, characterized in that: The detection platform (1) is provided with two grooves opposite to each other, a placement plate (22) is movably arranged in the groove, and a plurality of first springs (21) are connected between the bottom of the placement plate (22) and the inner wall of the groove.

6. The device for detecting the welding firmness of automobile parts according to claim 5, characterized in that: Transparent plates (23) are movably arranged on both the front and rear sides of the fixed frame (3), a connecting frame is fixed between the two transparent plates (23), a hydraulic rod (24) is arranged on the top of the fixed frame (3), the telescopic end of the hydraulic rod (24) is connected to the connecting frame, the left and right first screw rods (5) are fixedly connected via a rotating shaft, a third motor (25) is arranged on one side of the fixed frame (3), the output shaft of the third motor (25) is connected to the right end of the first screw rod (5) on the right side, and the surface threads of the two first screw rods (5) are in opposite directions, a limiting groove is arranged on the top of the movable groove (4), and a limiting block is fixed on the top of the sliding block (6) to cooperate with the limiting groove.

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