Automobile part welding penetration detection device

Abstract

The invention discloses an automobile part welding penetration detection device, and relates to the technical field of part welding, the automobile part welding penetration detection device comprises a base, the top of the base is fixedly connected with a rack, and one side of the rack is fixedly connected with a cross beam. According to the device, the detection probe is inserted into the clamping piece in a penetrating mode, the top of the clamping piece is clamped with the storage plate, the storage plate is connected with the fixing plate through the electric push rod, the use height of the storage plate can be adjusted through the fixing plate, and stable placement of the detection probe during storage can be assisted through the storage plate and the clamping piece; the detection probe and the ultrasonic detector body are used in a combined mode, the whole fusion depth area can be scanned, the fusion depth condition of part welding can be rapidly reflected, the detection result is accurate, the infrared receiver and the infrared transmitter can assist in achieving position calibration of the connecting frame, and the detection accuracy is high. Therefore, the current detection position is positioned by using the infrared distance measuring sensor II and the infrared distance measuring sensor I, and the subsequent welding seam position can be quickly acquired and accurately marked conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of component welding, in particular to a device for detecting the welding penetration of automobile components. Background Art

[0002] Welding technology is widely used in the production and processing of automotive parts, and welding penetration refers to the depth to which the liquid metal formed by the melting of the base material flows to the back of the weld during welding. This depth directly affects the quality of the welded joint and is one of the important indicators for evaluating welding quality.

[0003] For example, Chinese patent CN213874186U discloses a device for detecting the welding penetration of automobile parts, including a device base, a support rod, a clamping plate and a microscopic detection device. A fixing frame is welded and fixed on the device base, and the microscopic detection device is bolted on the top of the fixing frame. A bidirectional threaded rod is rotatably connected to the device base, a sliding block is movably connected to the bidirectional threaded rod, and the sliding block is slidably connected in the device base, the top of the sliding block is movably connected to the support rod, and the top of the support rod is movably connected to a placement detection plate.

[0004] In the above patent, although the problem of unstable processing state of subsequent automobile parts is solved by using bidirectional threaded rods and sliding blocks, when using microscope equipment to inspect parts, only local areas of the welding part can be observed, and the entire penetration area cannot be observed. The judgment of the penetration depth depends on the experience and skill level of the observer, and the subjective judgment factor has a greater influence, which reduces the accuracy of the penetration depth detection. Summary of the invention

[0005] The purpose of the present invention is to provide a device for detecting the welding penetration of automobile parts, so as to solve the problem proposed in the above-mentioned background technology that when using a microscope to detect parts, only a local area of ​​the welding part can be observed, and the entire penetration area cannot be observed. The judgment of the penetration depth depends on the experience and skill level of the observer, and the subjective judgment factor has a greater influence, thereby reducing the accuracy of the penetration depth detection.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting the welding penetration of automobile parts, comprising a base, a frame fixedly connected to the top of the base, a crossbeam fixedly connected to one side of the frame, a detection mechanism arranged on the top of the crossbeam, the detection mechanism comprising an ultrasonic detector body, a detection probe and a clamping member, a mounting rod fixedly connected to one side of the ultrasonic detector body, a support rod inserted through the inside of the mounting rod, one side of the support rod fixedly connected to a second support frame, the bottom of the second support frame is connected to the crossbeam by bolts, the ultrasonic detector body and the detection probe are electrically connected, and an infrared emitter is fixedly connected to one side of the detection probe; The detection probe is inserted through the engaging part, a storage plate is engaged with the top of the engaging part, an electric push rod is fixedly connected to the bottom of the storage plate, a fixing plate is embedded in the bottom of the electric push rod, a guide plate is fixedly connected to the bottom of the fixing plate, a support frame 1 is fixedly connected to one side of the guide plate, and the bottom of the support frame 1 is connected to the crossbeam by bolts.

[0007] Preferably, an auxiliary mechanism is arranged on the top of the support frame 1, and the auxiliary mechanism includes a motor 1, a screw 1 and a detection platform. One side of the motor 1 is fixedly connected to a fixing frame, and the bottom of the fixing frame is fixedly connected to the support frame 1.

[0008] Preferably, the top of the support frame 1 is fixedly connected to a guide rail, one side of the guide rail is slidably connected to an auxiliary component 2, the top of the auxiliary component 2 is fixedly connected to the testing table, the bottom of the testing table is fixedly connected to an auxiliary component 1, the auxiliary component 1 is connected to the screw 1 by a threaded connection, and one end of the screw 1 is fixedly connected to the output shaft of the motor 1.

[0009] Preferably, a hydraulic cylinder is embedded in the detection platform, one side of the hydraulic cylinder is fixedly connected to a support member, and one side of the support member is fixedly connected to the detection platform.

[0010] Preferably, one side of the support member is rotatably connected to a limiting member, one end of the limiting member is hinged to the top of the hydraulic cylinder, and one side of the limiting member is fixedly connected to an extension bar.

[0011] Preferably, a guide groove is provided on the top of the detection platform, a clamping plate is slidably connected in the guide groove, and the clamping plate is connected to a threaded rod through threads.

[0012] Preferably, one end of the threaded rod is rotatably connected to the detection platform, and an infrared ranging sensor is fixedly connected to the top of one of the clamping plates.

[0013] Preferably, one side of the detection platform is fixedly connected to motor 2, one end of the output shaft of motor 2 is fixedly connected to lead screw 2, one end of lead screw 2 is rotatably connected to an extension block, and one side of the extension block is fixedly connected to the detection platform.

[0014] Preferably, the second lead screw is connected to a connecting frame via a thread, the connecting frame is slidably connected to the detection platform, and a second infrared ranging sensor is fixedly connected to one side of the connecting frame.

[0015] Preferably, an infrared receiver is fixedly connected to the top of the connecting frame, the infrared receiver is electrically connected to a power module, and the power module is embedded in the connecting frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the detection probe is inserted through the engaging piece, the top of the engaging piece is engaged with the storage plate, the storage plate is connected to the fixed plate by an electric push rod, the use height of the storage plate can be adjusted by the fixed plate, the storage plate and the engaging piece can assist in the stable placement of the detection probe when it is stored, and the detection probe and the ultrasonic detector body are used in combination to scan the entire penetration area, quickly respond to the penetration of parts welding, less affected by subjective judgment factors, and more accurate detection results.

[0017] In the present invention, the clamping plate is connected to the threaded rod by threads, and the clamping plate is slidably connected to the testing platform. The use position of the clamping plate can be adjusted by rotating the threaded rod, so that the parts placed on the top of the testing platform can be initially clamped. The bottom of the limit member can be supported by a support member, and the inclination angle of the limit member can be adjusted by a hydraulic cylinder, so that the limit member and the extension strip can be used to press and limit the top of the part, thereby reducing the shaking of the part during testing.

[0018] 3. In the present invention, the connecting frame and the second lead screw are connected by threads, and the second infrared ranging sensor is fixedly connected to one side of the connecting frame. When the second lead screw is driven to rotate by the second motor, the connecting frame can be reciprocated on one side of the detection table, and the use position of the connecting frame and the infrared receiver can be changed. The infrared receiver and the infrared transmitter can assist in the position calibration of the connecting frame, so that the second infrared ranging sensor and the first infrared ranging sensor can be used to locate the current detection position, which is convenient for the subsequent rapid acquisition and accurate marking of the weld position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a device for detecting the welding penetration of automobile parts according to the present invention; Figure 2 This is a schematic diagram of the structural connection between the mounting rod and the support rod of a device for detecting the welding penetration of automobile parts according to the present invention; Figure 3 This is a schematic diagram of the installation of a receiving plate structure of a device for detecting the welding penetration of automobile parts according to the present invention; Figure 4 It is a schematic diagram of the installation of the extension bar structure of a device for detecting the welding penetration of automobile parts according to the present invention; Figure 5 This is a schematic diagram of the installation of a supporting structure of a device for detecting the welding penetration of automobile parts according to the present invention; Figure 6 A schematic diagram of the threaded rod structure of a device for detecting the welding penetration of automobile parts according to the present invention; Figure 7 The present invention is a schematic diagram of the structure of an infrared ranging sensor of a device for detecting the welding penetration of automobile parts.

[0020] In the figure: 1. Detection mechanism; 11. Ultrasonic detector body; 111. Mounting rod; 12. Support rod; 13. Storage plate; 14. Fixing plate; 15. Detection probe; 16. Electric push rod; 17. Infrared transmitter; 18. Clamping piece; 2. Support frame 1; 3. Guide plate; 4. Frame; 41. Crossbeam; 5. Base; 6. Support frame 2; 7. Auxiliary mechanism; 71. Motor 1; 72. Fixing frame; 73. Screw 1; 74. Guide rail; 75. Detection table; 751. Clamp; 752. Extension bar; 753. Limiting piece; 754. Hydraulic cylinder; 755. Support piece; 756. Auxiliary piece 1; 757. Auxiliary piece 2; 758. Threaded rod; 759. Infrared ranging sensor 1; 8. Infrared receiver; 81. Connecting frame; 811. Infrared ranging sensor 2; 82. Screw 2; 83. Motor 2. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 - Figure 7 As shown: a device for detecting the penetration depth of welding of automobile parts, including a base 5, a frame 4 is fixedly connected to the top of the base 5, a beam 41 is fixedly connected to one side of the frame 4, a detection mechanism 1 is arranged on the top of the beam 41, the detection mechanism 1 includes an ultrasonic detector body 11, a detection probe 15 and a clamping member 18, a mounting rod 111 is fixedly connected to one side of the ultrasonic detector body 11, a support rod 12 is inserted through the mounting rod 111, one side of the support rod 12 is fixedly connected to a support frame 6, and the bottom of the support frame 6 is connected to the beam 41 through Bolt connection, electrical connection is adopted between the ultrasonic detector body 11 and the detection probe 15, one side of the detection probe 15 is fixedly connected with an infrared transmitter 17; the detection probe 15 is inserted through the clamping member 18, the top of the clamping member 18 is clamped with a storage plate 13, the bottom of the storage plate 13 is fixedly connected with an electric push rod 16, the bottom of the electric push rod 16 is embedded with a fixing plate 14, the bottom of the fixing plate 14 is fixedly connected with a guide plate 3, one side of the guide plate 3 is fixedly connected with a support frame 2, and the bottom of the support frame 2 is connected to the crossbeam 41 by bolts.

[0023] In this example, the frame 4 can be used to assist in the installation and fixation of one side of the crossbeam 41. The crossbeam 41 can be used to support and reinforce the bottom of the support frame 1 2 and the support frame 2 6. The support frame 2 6 can assist in the installation of the support rod 12. The connection between the support rod 12 and the mounting rod 111 can be used to achieve stable installation and use of the ultrasonic detector body 11. The ultrasonic detector body 11 is used in combination with the detection probe 15 to achieve rapid scanning and detection of the weld. The clamping member 18 can assist in the connection between the detection probe 15 and the storage plate 13, which is convenient for the use of the detection probe 15. The guide plate 3 is connected to the bottom of the fixed plate 14 to support the bottom of the fixed plate 14, and the connection between the storage plate 13 and the fixed plate 14 can be achieved through two electric push rods 16. The electric push rods 16 can be used to adjust the use height of the storage plate 13, which can reduce the interference of the storage plate 13 when the detection probe 15 is manually moved. When an abnormality is detected, the electric push rod 16 is used to drive the storage plate 13 to move downward, and the storage plate 13 can be used to achieve the compression limit of the detection probe 15, thereby reducing the position deviation of the detection probe 15.

[0024] Embodiment 2: According to Figure 1 - Figure 6 As shown, an auxiliary mechanism 7 is arranged on the top of the support frame 2, and the auxiliary mechanism 7 includes a motor 71, a lead screw 73 and a detection platform 75. A fixed frame 72 is fixedly connected to one side of the motor 71, and the bottom of the fixed frame 72 is fixedly connected to the support frame 2. A guide rail 74 is fixedly connected to the top of the support frame 2, and an auxiliary part 757 is slidably connected to one side of the guide rail 74. The top of the auxiliary part 757 is fixedly connected to the detection platform 75, and the bottom of the detection platform 75 is fixedly connected to an auxiliary part 756. The auxiliary part 756 is connected to the lead screw 73 by a threaded connection. 3 is fixedly connected to the output shaft of the motor 71, a hydraulic cylinder 754 is embedded in the testing platform 75, one side of the hydraulic cylinder 754 is fixedly connected to a support member 755, one side of the support member 755 is fixedly connected to the testing platform 75, one side of the support member 755 is rotatably connected to a limit member 753, one end of the limit member 753 is hinged to the top of the hydraulic cylinder 754, one side of the limit member 753 is fixedly connected to an extension bar 752, a guide groove is provided on the top of the testing platform 75, a clamping plate 751 is slidably connected in the guide groove, and a threaded rod 758 is connected to the clamping plate 751 through a thread.

[0025] In this embodiment, the motor 1 71 can provide power for the rotation of the lead screw 1 73, and the threaded connection between the lead screw 1 73 and the auxiliary part 1 756 can realize the movement of the detection platform 75 on the top of the guide rail 74. When the detection platform 75 moves, the auxiliary part 2 757 can realize the connection between the detection platform 75 and the guide rail 74. The guide rail 74 can guide the movement of the detection platform 75. The support frame 1 2 can support and reinforce the bottom of the guide rail 74. The detection platform 75 can be reinforced for the installation and use of the hydraulic cylinder 754. The connection between the side wall of the hydraulic cylinder 754 and the limit member 753 can be realized through the support member 755. The support member 755 can be used to support the limit member 753, thereby improving the stability of the limit member 753 when it rotates. The top of the hydraulic cylinder 754 is hinged to the limit piece 753, which can provide power for the rotation of the limit piece 753, so as to control the contact or separation between one end of the limit piece 753 and the part. The extension bar 752 is fixedly connected to the limit piece 753. The contact area between the bottom of the limit piece 753 and the part can be increased by the extension bar 752, thereby improving the pressing and limiting effect on the top of the part. The two limit pieces 753 are connected by a cross bar, so that the two limit pieces 753 can be adjusted synchronously. The guide groove can be used to guide the movement of the clamping plate 751. The distance between the two clamping plates 751 can be adjusted by the threaded rod 758, so that the clamping plate 751 can be used to clamp and limit the part, thereby reducing the displacement of the part on the top of the inspection table 75.

[0026] Embodiment 3: According to Figure 4 - Figure 7 As shown, one end of the threaded rod 758 is rotatably connected to the detection platform 75, one of the clamping plates 751 is fixedly connected to the top of an infrared ranging sensor 759, one side of the detection platform 75 is fixedly connected to a motor 83, one end of the output shaft of the motor 83 is fixedly connected to a lead screw 82, one end of the lead screw 82 is rotatably connected to an extension block, one side of the extension block is fixedly connected to the detection platform 75, the lead screw 82 is threadedly connected to a connecting frame 81, the connecting frame 81 and the detection platform 75 are slidably connected, one side of the connecting frame 81 is fixedly connected to an infrared ranging sensor 811, the top of the connecting frame 81 is fixedly connected to an infrared receiver 8, the infrared receiver 8 is electrically connected to a power module, and the power module is embedded in the connecting frame 81.

[0027] In this embodiment, the bottom of the infrared distance measuring sensor 759 can be supported and reinforced by the clamping plate 751, so that the infrared distance measuring sensor 759 can move synchronously with the clamping plate 751, and the initial position of the infrared distance measuring sensor 759 can be adjusted while limiting the parts. The distance between the bottom of the detection probe 15 and the infrared distance measuring sensor 759 can be detected by the infrared distance measuring sensor 759, which is convenient for assisting the positioning of the subsequent abnormal weld. The extension block can be used to support one side of the screw 82 to ensure the stable rotation of the screw 82 on one side of the detection table 75. The motor 83 can provide power for the rotation of the screw 82. The connecting frame 81 is driven to move back and forth along the detection table 75 to adjust the position of the connecting frame 81. The infrared receiver 8 and the infrared transmitter 17 can assist in calibrating the position of the connecting frame 81 so that the connecting frame 81 and the detection probe 15 are in the same straight line, thereby reducing the position offset between the connecting frame 81 and the detection probe 15. Since the height of the infrared transmitter 17 is flush with the infrared receiver 8, it will not interfere with the use of the infrared ranging sensor 811. The infrared ranging sensor 811 can detect the distance between the bottom of the detection probe 15 and the infrared ranging sensor 811, thereby improving the accuracy of locating weld abnormalities.

[0028] The use method and working principle of the device are as follows: first, the motor 71 is used to drive the lead screw 73 to move, and the inspection platform 75 moves on the top of the guide rail 74 until it moves to the end of the guide rail 74. At this time, the automobile parts to be inspected are placed on the inspection platform 75, and the threaded rods 758 are rotated on both sides of the parts. Under the action of the threads, the clamping plate 751 moves in the guide groove to clamp both sides of the parts. Then, the end of the hydraulic cylinder 754 is extended to drive the limiter 753 to rotate with the connection with the support member 755 as the center of the circle, so that the side of the limiter 753 away from the hydraulic cylinder 754 overlaps the top of the part, and the bottom of the extension bar 752 is pressed against the part to achieve the limit of the part. Move the detection probe 15 and the engaging member 18 downward to separate the engaging member 18 from the receiving plate 13, and then make the bottom of the detection probe 15 contact the weld on the part, and move the detection probe 15 in a zigzag shape. During the movement, observe the waveform on the ultrasonic detector body 11 to obtain the welding depth. When the height of the wave peak exceeds the predetermined value, stop moving the detection probe 15, and use the electric push rod 16 to shrink and drive the receiving plate 13 to move downward, press the top of the detection probe 15, and realize the limit of the detection probe 15. At this time, use the infrared ranging sensor 1 759 to detect the distance between the infrared ranging sensor 1 759 and the bottom of the detection probe 15 to obtain a position coordinate, and then use the motor 2 83 to drive the screw 2 82 to rotate, and the connecting frame 81 moves along the screw 2 82 The second detection platform 75 moves until the infrared receiver 8 receives the signal from the infrared transmitter 17. At this time, the lead screw 82 stops rotating and the connecting frame 81 is no longer used. The infrared ranging sensor 811 is used to detect the distance between the infrared ranging sensor 811 and the bottom of the detection probe 15 to obtain the second coordinate. The two coordinates are combined to locate the current detection position. When the electric push rod 16 drives the storage plate 13 to move up and separate from the detection probe 15, the position can be quickly marked manually. After the overall detection is completed, the top of the engaging member 18 can be engaged with the storage plate 13 to store and protect the detection probe 15. The inspected parts can be removed from the detection platform 75 and the parts to be inspected can be put in to achieve continuous monitoring and improve the efficiency of the entire device when in use.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the welding penetration of automobile parts, comprising a base (5), the top of the base (5) being fixedly connected to a frame (4), and one side of the frame (4) being fixedly connected to a crossbeam (41), characterized in that: A detection mechanism (1) is arranged on the top of the crossbeam (41), the detection mechanism (1) comprising an ultrasonic detector body (11), a detection probe (15) and a clamping member (18); a mounting rod (111) is fixedly connected to one side of the ultrasonic detector body (11); a support rod (12) is inserted through the inside of the mounting rod (111); one side of the support rod (12) is fixedly connected to the second support frame (6); the bottom of the second support frame (6) is connected to the crossbeam (41) by bolts; the ultrasonic detector body (11) and the detection probe (15) are electrically connected; one side of the detection probe (15) is fixedly connected to an infrared emitter (17); The detection probe (15) is inserted through the engaging member (18), a receiving plate (13) is engaged at the top of the engaging member (18), an electric push rod (16) is fixedly connected to the bottom of the receiving plate (13), a fixing plate (14) is embedded at the bottom of the electric push rod (16), a guide plate (3) is fixedly connected to the bottom of the fixing plate (14), a support frame (2) is fixedly connected to one side of the guide plate (3), and the bottom of the support frame (2) is connected to the crossbeam (41) by bolts.

2. The device for detecting the welding penetration of automobile parts according to claim 1, characterized in that: An auxiliary mechanism (7) is arranged on the top of the support frame 1 (2), and the auxiliary mechanism (7) comprises a motor 1 (71), a lead screw 1 (73) and a detection platform (75); one side of the motor 1 (71) is fixedly connected to a fixing frame (72), and the bottom of the fixing frame (72) is fixedly connected to the support frame 1 (2).

3. The device for detecting the welding penetration of automobile parts according to claim 2, characterized in that: The top of the support frame 1 (2) is fixedly connected to a guide rail (74), one side of the guide rail (74) is slidably connected to an auxiliary component 2 (757), the top of the auxiliary component 2 (757) is fixedly connected to the detection table (75), the bottom of the detection table (75) is fixedly connected to an auxiliary component 1 (756), the auxiliary component 1 (756) is connected to the lead screw 1 (73) by a threaded connection, and one end of the lead screw 1 (73) is fixedly connected to the output shaft of the motor 1 (71).

4. The device for detecting the welding penetration of automobile parts according to claim 3, characterized in that: A hydraulic cylinder (754) is embedded inside the detection platform (75), one side of the hydraulic cylinder (754) is fixedly connected to a support member (755), and one side of the support member (755) is fixedly connected to the detection platform (75).

5. The device for detecting the welding penetration of automobile parts according to claim 4, characterized in that: One side of the support member (755) is rotatably connected to the limiting member (753), one end of the limiting member (753) is hinged to the top of the hydraulic cylinder (754), and one side of the limiting member (753) is fixedly connected to an extension bar (752).

6. The device for detecting the welding penetration of automobile parts according to claim 2, characterized in that: A guide groove is provided on the top of the detection platform (75), a clamping plate (751) is slidably connected in the guide groove, and the clamping plate (751) is connected to a threaded rod (758) via a thread.

7. The device for detecting the welding penetration of automobile parts according to claim 6, characterized in that: One end of the threaded rod (758) is rotatably connected to the detection platform (75), and an infrared distance measuring sensor (759) is fixedly connected to the top of one of the clamping plates (751).

8. The device for detecting the welding penetration of automobile parts according to claim 2, characterized in that: One side of the detection platform (75) is fixedly connected to a second motor (83), one end of the output shaft of the second motor (83) is fixedly connected to a second lead screw (82), one end of the second lead screw (82) is rotatably connected to an extension block, and one side of the extension block is fixedly connected to the detection platform (75).

9. The device for detecting the welding penetration of automobile parts according to claim 8, characterized in that: The second lead screw (82) is connected to a connecting frame (81) via a thread, the connecting frame (81) is slidably connected to the detection platform (75), and a second infrared distance measuring sensor (811) is fixedly connected to one side of the connecting frame (81).

10. The device for detecting the welding penetration of automobile parts according to claim 9, characterized in that: An infrared receiver (8) is fixedly connected to the top of the connection frame (81), and the infrared receiver (8) is electrically connected to a power module, and the power module is embedded in the connection frame (81).

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