An automobile part quality detection tool

Abstract

The application relates to the technical field of automobile part quality detection, and discloses an automobile part quality detection tool, which comprises a tool table, a flaw detection part and a locking assembly, an exhaust pipe, an air tightness detection mechanism and a fixing mechanism are arranged on the tool table, a horizontal moving table one is arranged on the tool table, a horizontal moving table two is arranged on the horizontal moving table one, a vertical moving table is arranged on the horizontal moving table two, a motor one and a mounting plate are fixedly installed on the vertical moving table, a rotating rod is rotatably connected to the mounting plate, the rotating rod is fixedly connected with the flaw detection part, and the air tightness detection mechanism is arranged at the two ends of the exhaust pipe. The output end of the hydraulic rod controls the opening and closing of the half ring one and the half ring two, then the horizontal moving table one, the horizontal moving table two, the vertical moving table and the motor one are controlled by a control panel to realize the movement of the flaw detection part on the complex pipeline, the annular arrangement of the flaw detection part is simple and convenient for detection, is favorable for batch detection of the exhaust pipe, and improves the detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive parts quality inspection technology, and in particular to an automotive parts quality inspection fixture. Background Technology

[0002] Automotive parts quality inspection fixtures are specialized process equipment used to inspect the quality characteristics of automotive parts, such as size, shape, and positional accuracy. Through standardized clamping, positioning, and measurement, they ensure that parts meet design requirements. Among them, the automotive exhaust pipe connects the outside and the inside of the car, not only expelling internal exhaust gases but also reducing vibration and noise from the vehicle chassis. If the automotive exhaust pipe does not meet quality standards, it will not only fail to provide sufficient noise reduction but may also allow harmful substances to enter the vehicle through the exhaust pipe. Poor sealing may lead to oil or gas leaks during use.

[0003] Existing technologies typically employ airtightness testing equipment to inspect the exhaust pipe assembly for sealing. However, this method can only detect whether the exhaust pipe is properly sealed, and testing it in liquid will cause the exhaust pipe to rust and corrode. On the other hand, ultrasonic flaw detection equipment, a non-destructive test, can detect surface and internal defects in the exhaust pipe. However, this method requires professional technicians to conduct rigorous testing on the exhaust pipe, which is cumbersome and not conducive to the batch testing of automotive exhaust pipes. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a quality inspection fixture for automotive parts, which solves the problems mentioned in the background section regarding the cumbersome operation of existing automotive exhaust pipe quality inspection and its unfavorability for batch inspection of automotive exhaust pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quality inspection fixture for automotive parts, comprising: The tooling table is equipped with an exhaust pipe, an airtightness detection mechanism and a fixing mechanism. A horizontal moving platform is provided on the tooling table, and a second horizontal moving platform is provided on the first horizontal moving platform. The flaw detection unit is set on the horizontal moving platform two, and the flaw detection unit includes a semi-ring one and a semi-ring two for rapid flaw detection around the exhaust pipe. A locking assembly is disposed within semi-ring one and semi-ring two, and the locking assembly is used to facilitate the movement of the flaw detection unit on the complex exhaust pipe assembly.

[0006] Furthermore, the airtightness testing mechanism is located at both ends of the exhaust pipe, and the fixing mechanism is used to fix the exhaust pipe on the tooling table.

[0007] Furthermore, the horizontal moving stage 2 is provided with a vertical moving stage, on which a motor 1 and a mounting plate are fixedly installed. A rotating rod is rotatably connected to the mounting plate, and the rotating rod is fixedly connected to the flaw detection unit. A bevel gear is coaxially fixedly connected to the output end of the motor, and a bevel gear is coaxially fixedly connected to the rotating rod. The bevel gear and the bevel gear mesh and transmit power.

[0008] Furthermore, the flaw detection unit also includes: The rotating shaft connects one end of the semi-ring one and the semi-ring two to each other, and the other ends are respectively connected to a connecting shaft and a connecting cylinder. Multiple spur gears and multiple universal joints are alternately arranged on half ring one and half ring two in sequence. Each of the multiple spur gears is meshed with a rack, and a probe is fixedly installed on the rack. The hydraulic rod and motor 2 are provided. The two ends of the hydraulic rod are rotatably connected to half ring 1 and half ring 2 respectively. The motor 2 is fixedly installed on half ring 1, and the output end of the motor 2 is coaxially fixedly connected to the connecting shaft.

[0009] Furthermore, the connecting shaft has a coaxial mounting cavity, and the connecting cylinder has a connecting groove at one end near the connecting shaft to facilitate the installation and separation of the connecting shaft and the connecting cylinder. The connecting cylinder also has multiple slots.

[0010] Furthermore, the locking component includes: A fixing member is fixedly connected to the mounting cavity inside the connecting shaft. A turntable is rotatably connected to the fixing member. The turntable has multiple arc-shaped guide holes. The fixing member has multiple sliding grooves. A slide bar is slidably connected in each of the multiple sliding grooves. A plug is fixedly connected to one end of the slide bar, and a limit block is fixedly connected to the other end. The connection between the limit block and the slide bar is located in the arc-shaped guide hole. A motor three is fixedly installed on the fixing component. The output end of the motor three is coaxially fixedly connected to a drive gear. The outer wall of the turntable is coaxially provided with teeth that mesh with the drive gear.

[0011] Furthermore, the connecting shaft is provided with multiple insertion holes, and multiple insertion blocks move within the insertion holes. The diameter of the slot is larger than the size of the insertion block, and multiple arc-shaped guide holes are arranged in a circumferential array on the turntable.

[0012] Furthermore, a control board is installed on the tooling table, and the control board is electrically connected to motor one, hydraulic rod, motor two and motor three respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, the opening and closing of half-ring one and half-ring two are controlled by the output end of the hydraulic rod. Then, the horizontal moving stage one, horizontal moving stage two, vertical moving stage and motor one are controlled by the control board to realize the movement of the flaw detection unit on the complex pipeline. The ring-shaped setting of the flaw detection unit makes the detection simple and convenient, which is conducive to the batch detection of exhaust pipes and improves the detection efficiency.

[0014] 2. The present invention drives the connecting shaft, connecting cylinder, and multiple alternating universal joints and spur gears to rotate simultaneously through the output end of motor two. This causes multiple spur gears to simultaneously drive multiple racks to move closer to or away from the center of the flaw detection section, thereby achieving the diameter adjustment of multiple probes to adapt to pipelines of different sizes and specifications.

[0015] 3. The present invention utilizes the cooperation of motor three, drive gear and turntable, so that when the turntable rotates, the arc-shaped guide hole on the turntable pushes the insert on the slide bar into the slot, thereby locking the connecting shaft and the connecting cylinder, so that when motor two drives the connecting shaft to rotate, the connecting cylinder will rotate accordingly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a quality inspection fixture for automotive parts proposed in this invention. Figure 2 This is a schematic diagram of another overall structure of a quality inspection fixture for automotive parts proposed in this invention; Figure 3 This is a schematic diagram of the working state of the flaw detection section of a quality inspection fixture for automotive parts proposed in this invention. Figure 4 This is a schematic diagram of the flaw detection section and vertical moving stage installation structure of a quality inspection fixture for automotive parts proposed in this invention. Figure 5 This is a schematic diagram of the flaw detection section of a quality inspection fixture for automotive parts proposed in this invention. Figure 6 This is a schematic diagram of the connecting shaft and connecting cylinder installation structure of an automotive parts quality inspection fixture proposed in this invention; Figure 7 This is a schematic diagram of the locking component structure of a quality inspection fixture for automotive parts proposed in this invention.

[0017] Explanation of the labels in the diagram: 1. Tooling table; 11. Horizontal moving table one; 12. Horizontal moving table two; 121. Vertical moving table; 122. Motor one; 123. Bevel gear one; 124. Bevel gear two; 125. Mounting plate; 126. Rotating rod; 2. Exhaust pipe; 21. Air tightness testing mechanism; 22. Fixing mechanism; 3. Flaw detection section; 31. Semi-ring one; 32. Semi-ring two; 33. Rotating shaft; 34. Hydraulic rod; 35. Motor two; 36. Universal joint; 37. Spur gear; 371. Rack; 372. Probe; 38. Connecting shaft; 39. Connecting cylinder; 391. Connecting groove; 392. Slot; 4. Locking component; 41. Fixing component; 42. Turntable; 421. Arc-shaped guide hole; 43. Motor three; 431. Drive gear; 44. Insert block; 441. Limiting block. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 7 This embodiment of the present invention provides a quality inspection fixture for automotive parts, which includes a fixture table 1, a flaw detection unit 3 and a locking assembly 4. The fixture table 1 is provided with an exhaust pipe 2, an airtightness detection mechanism 21 and a fixing mechanism 22. The fixture table 1 is provided with a horizontal moving stage 11 and a horizontal moving stage 22.

[0020] A vertical moving stage 121 is provided on the horizontal moving stage 2 12. A motor 122 and a mounting plate 125 are fixedly installed on the vertical moving stage 121. A rotating rod 126 is rotatably connected to the mounting plate 125. The rotating rod 126 is fixedly connected to the flaw detection part 3. An airtightness detection mechanism 21 is set at both ends of the exhaust pipe 2. A fixing mechanism 22 is used to fix the exhaust pipe 2 on the tooling table 1. A bevel gear 123 is coaxially fixedly connected to the output end of the motor 122. A bevel gear 124 is coaxially fixedly connected to the rotating rod 126. The bevel gear 123 and the bevel gear 124 mesh and drive each other.

[0021] A control board is installed on the tooling table 1. The control board is electrically connected to motor 122, hydraulic rod 34, motor 2 35 and motor 3 43 respectively. Here, motor 122, motor 2 35 and motor 3 43 are all servo motors to ensure control accuracy.

[0022] Usage process: First, place the exhaust pipe 2 on the tooling table 1 and fix the exhaust pipe 2 by the fixing mechanism 22. Then, connect the air tightness detection mechanism 21 to both ends of the exhaust pipe 2 to detect whether the air tightness of the exhaust pipe 2 is qualified. Then, the flaw detection part 3 is used to perform quality inspection on the surface and inside of the exhaust pipe 2.

[0023] Please see Figures 4 to 5The flaw detection unit 3 is installed on the horizontal moving platform 12. The flaw detection unit 3 includes a semi-ring 31 and a semi-ring 32 for rapid flaw detection around the exhaust pipe 2.

[0024] The flaw detection unit 3 also includes: a rotating shaft 33, half ring one 31 and half ring two 32 are rotatably connected at one end via the rotating shaft 33, and the other end is rotatably connected to a connecting shaft 38 and a connecting cylinder 39 respectively.

[0025] Multiple spur gears 37 and multiple universal joints 36 are alternately arranged on semi-ring one 31 and semi-ring two 32. Each of the multiple spur gears 37 meshes with a rack 371. A probe 372 is fixedly installed on the rack 371. Here, the probe 372 can optionally be an ultrasonic probe, which is existing technology. Here, it serves to detect the quality of the exhaust pipe 2 wall, which will not be described in detail.

[0026] Hydraulic rod 34 and motor 35 are provided. The two ends of hydraulic rod 34 are rotatably connected to semi-ring 31 and semi-ring 32 respectively. Motor 35 is fixedly installed on semi-ring 31. The output end of motor 35 is coaxially fixedly connected to connecting shaft 38.

[0027] Usage: First, the output end of the hydraulic rod 34 pushes the semi-ring 31 and semi-ring 32 to open, placing them on both sides of the exhaust pipe 2. Then, the output end of the hydraulic rod 34 controls the semi-ring 31 and semi-ring 32 to close. Next, the control board controls the horizontal moving platform 11, the horizontal moving platform 12, and the vertical moving platform 121 to move the flaw detection unit 3 on complex pipelines. By controlling the output end of the motor 122 to rotate, the horizontal angle of the flaw detection unit 3 can be adjusted, facilitating its movement at complex pipeline bends and connections. Due to the ring-shaped design of the flaw detection unit 3, the inspection is simple and convenient, which is beneficial for batch inspection of the exhaust pipe 2 and improves inspection efficiency.

[0028] When encountering a pipe with a variable diameter, the output end of motor 35 drives the connecting shaft 38, connecting cylinder 39, and multiple alternating universal joints 36 and spur gears 37 to rotate simultaneously. This causes multiple spur gears 37 to simultaneously drive multiple racks 371 to move closer to or further away from the center of the flaw detection section 3, ultimately achieving the variable diameter adjustment of multiple probes 372 to adapt to pipes of different sizes and specifications.

[0029] Please see Figures 6 to 7 The locking component 4 is located within the first half ring 31 and the second half ring 32. The locking component 4 is used to facilitate the movement of the flaw detection part 3 on the complex exhaust pipe 2 pipeline assembly.

[0030] The locking assembly 4 includes: a fixing member 41 fixedly connected to the mounting cavity inside the connecting shaft 38; a turntable 42 rotatably connected to the fixing member 41; a plurality of arc-shaped guide holes 421 opened on the turntable 42; a plurality of sliding grooves opened on the fixing member 41; a slide bar slidably connected in each of the plurality of sliding grooves; an insert block 44 fixedly connected to one end of the slide bar; and a limit block 441 fixedly connected to the other end; the connection between the limit block 441 and the slide bar is located in the arc-shaped guide hole 421.

[0031] A motor 43 is fixedly mounted on the fixing member 41. The output end of the motor 43 is coaxially fixedly connected to the drive gear 431. The outer side wall of the turntable 42 is coaxially provided with teeth that mesh with the drive gear 431.

[0032] The connecting shaft 38 has a coaxial mounting cavity, and the connecting cylinder 39 has a connecting groove 391 at one end near the connecting shaft 38 to facilitate the installation and separation of the connecting shaft 38 and the connecting cylinder 39. The connecting cylinder 39 has multiple slots 392.

[0033] Multiple insertion holes are provided on the connecting shaft 38, and multiple insertion blocks 44 move within the insertion holes. The diameter of the slot 392 is larger than the size of the insertion block 44. Multiple arc-shaped guide holes 421 are provided on the turntable 42 in a circumferential array.

[0034] Usage: The control board controls the output of motor 3 43 to rotate counterclockwise and clockwise to open and close the locking component 4. When the output of hydraulic rod 34 pushes half ring 1 31 and half ring 2 32 to open or close, the connecting shaft 38 and the connecting cylinder 39 first separate or approach each other. Then, since the connecting cylinder 39 is provided with a connecting groove 391, it is convenient for the connecting shaft 38 to disengage and enter. When the output of motor 3 43 rotates, the active gear 431, which is fixedly connected to it on the same axis, drives the turntable 42 to rotate. When the turntable 42 rotates, the arc-shaped guide hole 421 on the turntable 42 pushes the insert 44 on the slide bar to extend into the slot 392, locking the connecting shaft 38 and the connecting cylinder 39. At this time, when motor 2 35 drives the connecting shaft 38 to rotate, the connecting cylinder 39 rotates accordingly.

[0035] As can be seen from the above, the working principle of this application is as follows: First, place the exhaust pipe 2 on the tooling table 1 and fix the exhaust pipe 2 by the fixing mechanism 22. Then, connect the air tightness detection mechanism 21 to both ends of the exhaust pipe 2 to detect whether the air tightness of the exhaust pipe 2 is qualified. Then, the flaw detection part 3 is used to perform quality inspection on the surface and inside of the exhaust pipe 2.

[0036] During the testing process, the output end of the hydraulic rod 34 first pushes the half-ring 31 and half-ring 32 to open, placing them on both sides of the exhaust pipe 2. Then, the output end of the hydraulic rod 34 controls the half-ring 31 and half-ring 32 to close. The control panel controls the horizontal moving platform 11, the horizontal moving platform 2 12, and the vertical moving platform 121 to move the flaw detection unit 3 on the complex pipeline. By controlling the output end of the motor 122 to rotate, the horizontal angle of the flaw detection unit 3 is adjusted, facilitating its movement at complex pipeline bends and connections.

[0037] When encountering a pipe with a variable diameter, the output end of motor 35 drives the connecting shaft 38, connecting cylinder 39, and multiple alternating universal joints 36 and spur gears 37 to rotate simultaneously, so that multiple spur gears 37 simultaneously drive multiple racks 371 to move closer to or away from the center of the flaw detection section 3.

[0038] The control board controls the output end of motor 3 43 to rotate counterclockwise and clockwise to open and close the locking component 4. When the output end of hydraulic rod 34 pushes half ring 1 31 and half ring 2 32 to open or close, the connecting shaft 38 and the connecting cylinder 39 first separate or approach each other. Then, since the connecting cylinder 39 is provided with a connecting groove 391, it is convenient for the connecting shaft 38 to disengage and enter. When the output end of motor 3 43 rotates, the active gear 431, which is fixedly connected to it on the same axis, drives the turntable 42 to rotate. When the turntable 42 rotates, the arc-shaped guide hole 421 on the turntable 42 pushes the insert 44 on the slide bar to extend into the slot 392, locking the connecting shaft 38 and the connecting cylinder 39. At this time, when motor 2 35 drives the connecting shaft 38 to rotate, the connecting cylinder 39 rotates accordingly.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A quality inspection fixture for automotive parts, characterized in that, include: Tooling table (1), the tooling table (1) is provided with exhaust pipe (2), air tightness detection mechanism (21) and fixing mechanism (22), the tooling table (1) is provided with horizontal moving platform one (11), the horizontal moving platform one (11) is provided with horizontal moving platform two (12). The flaw detection unit (3) is set on the horizontal moving platform (12). The flaw detection unit (3) includes a semi-ring one (31) and a semi-ring two (32) for rapid flaw detection around the exhaust pipe (2). Locking component (4), which is disposed within half ring one (31) and half ring two (32), is used to facilitate the movement of the flaw detection part (3) on the complex exhaust pipe (2) pipeline assembly.

2. The quality inspection fixture for automotive parts according to claim 1, characterized in that, The airtightness testing mechanism (21) is set at both ends of the exhaust pipe (2), and the fixing mechanism (22) is used to fix the exhaust pipe (2) on the tooling table (1).

3. The quality inspection fixture for automotive parts according to claim 1, characterized in that, The horizontal moving platform 2 (12) is provided with a vertical moving platform (121). The vertical moving platform (121) is fixedly installed with a motor 1 (122) and a mounting plate (125). A rotating rod (126) is rotatably connected to the mounting plate (125). The rotating rod (126) is fixedly connected to the flaw detection part (3). The output end of the motor (122) is coaxially fixedly connected to a bevel gear (123), and the rotating rod (126) is coaxially fixedly connected to a bevel gear (124). The bevel gear (123) and the bevel gear (124) mesh and drive each other.

4. The quality inspection fixture for automotive parts according to claim 3, characterized in that, The flaw detection unit (3) also includes: The rotating shaft (33) connects one end of the first half ring (31) and the second half ring (32) to each other, and the other end is respectively connected to the connecting shaft (38) and the connecting cylinder (39). Multiple spur gears (37) and multiple universal joints (36) are arranged alternately on half ring one (31) and half ring two (32) in sequence. Each of the multiple spur gears (37) is meshed with a rack (371). A probe (372) is fixedly installed on the rack (371). Hydraulic rod (34) and motor 2 (35), the two ends of the hydraulic rod (34) are rotatably connected to half ring 1 (31) and half ring 2 (32) respectively, the motor 2 (35) is fixedly installed on half ring 1 (31), and the output end of the motor 2 (35) is coaxially fixedly connected to the connecting shaft (38).

5. The quality inspection fixture for automotive parts according to claim 4, characterized in that, The connecting shaft (38) has a coaxial mounting cavity, and the connecting cylinder (39) has a connecting groove (391) at one end near the connecting shaft (38) to facilitate the installation and separation of the connecting shaft (38) and the connecting cylinder (39). The connecting cylinder (39) has multiple slots (392).

6. The automotive parts quality inspection fixture according to claim 5, characterized in that, The locking component (4) includes: A fixing member (41) is fixedly connected to the inner cavity of the connecting shaft (38). A turntable (42) is rotatably connected to the fixing member (41). A plurality of arc-shaped guide holes (421) are opened on the turntable (42). A plurality of sliding grooves are opened on the fixing member (41). A slide bar is slidably connected in each of the plurality of sliding grooves. A plug (44) is fixedly connected to one end of the slide bar, and a limit block (441) is fixedly connected to the other end. The connection between the limit block (441) and the slide bar is set in the arc-shaped guide hole (421). The fixing member (41) is fixedly installed with a motor three (43), and the output end of the motor three (43) is coaxially fixedly connected with a drive gear (431). The outer side wall of the turntable (42) is coaxially provided with teeth that mesh with the drive gear (431).

7. The quality inspection fixture for automotive parts according to claim 6, characterized in that, The connecting shaft (38) has multiple insertion holes, and multiple insertion blocks (44) move within the insertion holes. The diameter of the slot (392) is larger than the size of the insertion block (44). Multiple arc-shaped guide holes (421) are arranged in a circular array on the turntable (42).

8. The quality inspection fixture for automotive parts according to claim 6, characterized in that, A control board is installed on the tooling table (1), and the control board is electrically connected to motor one (122), hydraulic rod (34), motor two (35) and motor three (43).

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