Automobile pipe fitting detection device and use method thereof

Abstract

The invention relates to the field of automobile pipe fitting detection. The invention discloses an automobile tubular part detection device, which comprises a base, a motor is fixedly connected to the center of the top surface of the base, an intermittent switching mechanism is fixedly connected to the top surface of the side surface of a rotating shaft of the motor, and the intermittent switching mechanism comprises a wedge-shaped shifting plate fixed on the rotating shaft of the motor. The invention aims to solve the problem that the detection efficiency is affected due to the fact that the roundness of the outer wall and the flatness and roundness of the end face of a tubular fitting are inconvenient to detect by a tubular fitting detection device at the same time. The device is composed of an intermittent switching mechanism, a pipe fitting inner supporting mechanism, a locking mechanism and a pipe fitting roundness detection mechanism. According to the automobile tubular fitting detection device and the use method thereof, the C-shaped roundness detection arm is moved to the standard roundness position of the automobile tubular fitting, and the C-shaped roundness detection arm detects the roundness of the automobile tubular fitting and the flatness of the lower end of the automobile tubular fitting through subsequent rotation of the extrusion block, so that procedures are saved.

Description

Technical Field

[0001] The present invention relates to the field of automotive pipe-shaped fitting detection, and specifically to an automotive pipe-shaped fitting detection device and its usage method. Background Art

[0002] An automobile requires many parts to be assembled, and the shapes of these parts are also different. Among them, the pipe-shaped fittings in automotive parts are also very important components. Pipe-shaped fittings have certain requirements for roundness and cross-section. If the overall roundness is not good or the cross-section of the pipe-shaped fitting is not flat, it will affect the realization of certain functions of the automobile, not only affecting the appearance, but also possibly causing major safety hazards in severe cases. Therefore, it is very important to detect the overall roundness and cross-section flatness of pipe-shaped fittings.

[0003] Existing patent: Publication number "CN117537690A" discloses a core true roundness detection device, belonging to the technical field of detection devices. After the core is installed, press the start button to start the detection drive motor, move the bracket to the core, adjust the fixed rod to make the micrometer sensor contact the core, press the empty shaft rotation button of the take-up seat to rotate the core, then start the detection drive motor to start the detection. The micrometer sensor transmits the signal to the pulse detection meter. When the data of the detection meter exceeds the range, the alarm sounds, indicating that the true roundness of the core does not meet the requirements; if it does not sound, the true roundness of the core meets the requirements. After the detection is completed, adjust the fixed rod to disconnect the micrometer sensor from the core, and then press the retraction button to return to the starting position. This device can only detect the roundness of pipe fittings and is inconvenient to detect the flatness of the ends of pipe fittings. Therefore, an automotive pipe-shaped fitting detection device that is convenient for simultaneously detecting the roundness and end flatness and roundness of the outer wall of pipe-shaped fittings is needed to ensure the detection efficiency of the surface roundness and end flatness of automotive pipe-shaped fittings. Summary of the Invention

[0004] The purpose of the present invention is to provide an automotive pipe-shaped fitting detection device and its usage method to solve the problem in the above background art that the pipe-shaped fitting detection device is inconvenient to simultaneously detect the roundness and end flatness and roundness of the outer wall of pipe-shaped fittings, affecting the detection efficiency. To achieve the above purpose, the present invention provides the following technical solution: An automotive pipe-shaped fitting detection device includes a base, a motor is fixedly connected to the center of the top surface of the base, and an intermittent switching mechanism is fixedly connected to the top surface of the side of the motor rotation shaft. The intermittent switching mechanism includes a wedge-shaped dial fixed on the motor rotation shaft, a tension spring is fixedly connected to the wedge-shaped dial, and the end of the tension spring away from the wedge-shaped dial is fixedly connected to a notched turntable, and the notched turntable is rotatably connected to the motor rotation shaft; Four first spring telescopic rods are abutted against the side surface of the notched turntable. One end of the four first spring telescopic rods facing the notched turntable is beveled. One of the first spring telescopic rods with a beveled end is abutted inside the notch of the notched turntable. The other ends of the four first spring telescopic rods away from the notched turntable are fixedly connected with a fixed circular pipe frame. The fixed circular pipe frame is fixed on the top surface of the base. An L-shaped support block is fixedly connected to the inner wall of the fixed circular pipe frame, and the L-shaped support block is lapped on the outside of the notched turntable; A pipe fitting inner support mechanism is fixedly connected to the bottom surface of the notched turntable.

[0005] Preferably, the pipe fitting inner support mechanism includes a spring telescopic pipe fixed to the bottom surface of the notched turntable. A driven gear is rotatably connected to the outside of the outer pipe of the spring telescopic pipe. A driving gear is engaged with the driven gear, and the driving gear is fixedly sleeved on the motor rotating shaft; Four L-shaped plates are fixedly connected to the bottom surface of the driven gear. Four sleeves are fixedly connected to the outside of the four L-shaped plates. The four L-shaped plates form a "cross" groove. The four L-shaped plates are on the outside of the inner pipe of the spring telescopic pipe. Sliders are slidably arranged between every two of the four L-shaped plates. An extrusion block is fixedly connected to the bottom surface of the slider, and a rubber block is adhered to the extrusion block; Two deflecting plates are hinged to the side of the extrusion block facing away from the rubber block. One end of the two deflecting plates away from the extrusion block is hinged with a sliding sleeve, and the sliding sleeve is rotatably sleeved on the inner pipe of the spring telescopic pipe; A locking mechanism is arranged on the outer pipe of the spring telescopic pipe. The locking mechanism is abutted in a through groove opened on the inner pipe and the outer pipe of the spring telescopic pipe.

[0006] Preferably, the locking mechanism includes a fixed pipe fixedly sleeved on the outer pipe of the spring telescopic pipe. A second spring telescopic rod is hinged to the outside of the fixed pipe. One end of the second spring telescopic rod away from the spring telescopic pipe is hinged with a hollow deflecting plate, and the middle of the hollow deflecting plate is hinged to the outer wall of the fixed pipe; A rectangular frame is slidably arranged in the chute of the hollow deflecting plate. One side of the rectangular frame away from the hollow deflecting plate is beveled, and the side of the rectangular frame with a bevel is abutted in the through groove to lock the contracted spring telescopic pipe; A cross-shaped limiting plate is slidably arranged inside the rectangular frame. The cross-shaped limiting plate is fixed to the bottom end of the fixed pipe.

[0007] Preferably, a third spring telescopic rod is fixedly connected to the bottom surface of the cross-shaped limiting plate. The bottom end of the third spring telescopic rod is fixedly connected with a limiting clamping plate. Inverted L-shaped rods are fixedly connected to both sides of the limiting clamping plate. One end of the inverted L-shaped rod is cylindrical; The cylindrical end of the inverted L-shaped rod is abutted in a "<" shaped groove opened on the side surface of the rectangular frame.

[0008] Preferably, the fixed round tube rack is fixedly connected with a pipe roundness detection mechanism, and the pipe roundness detection mechanism comprises a cylinder obliquely fixed on the fixed round tube rack, a coil spring is movably sleeved on the end of the cylinder, one end of the coil spring is fixed on the telescopic rod of the cylinder, and the other end of the coil spring is fixed on a C-shaped roundness detection arm, and an inverted L-shaped push plate is fixedly connected to the upper end of the C-shaped roundness detection arm, and the upper side of the inverted L-shaped push plate away from one end of the C-shaped roundness detection arm is overlapped on the upper end of the hollow deflection plate; The inverted L-shaped push plate is fixedly connected to a U-shaped plate on the lower side away from one end of the C-shaped roundness detection arm, and the end of the U-shaped plate away from the C-shaped roundness detection arm is overlapped on the lower end of the hollow deflection plate. The U-shaped plate is fixedly connected to a protrusion on one side away from the C-shaped roundness detection arm, and the protrusion is overlapped in the limit clamping plate.

[0009] Preferably, the position-limiting clamping plate comprises a rectangular plate and a rectangular groove, and the rectangular groove is provided on the rectangular plate, and the protrusion is overlapped in the rectangular groove.

[0010] Preferably, the fixed circular tube frame consists of a hollow tube and two connecting columns, and the hollow tube is fixed on the top surface of the base through the connecting columns.

[0011] Preferably, the method for using the automobile pipe fitting detection device comprises the following steps: S1: Lift the automobile tubular part that needs to be tested for the roundness of the outer wall and the flatness of its end through the lifting platform, and at the same time push the spring telescopic tube to contract and drive the sliding sleeve to move upward, and the eight rotating plates drive the four extrusion blocks on the four sliders to expand under the action of the upward movement of the sliding sleeve, support the automobile tubular part on the outer side of the four rubber blocks, and insert it into the through groove through the rectangular frame to lock the contracted spring telescopic tube; Then, the motor drives the wedge-shaped paddle to rotate counterclockwise, squeezing the first spring telescopic rod in the counterclockwise direction, so that the first spring telescopic rod contracts, releasing the restriction on the notch rotating disk. At this time, the notch rotating disk is rotated counterclockwise by 90 degrees through the contraction of the tension spring, and the notch rotating disk rotated by 90 degrees is clamped by another first spring telescopic rod, so that the automobile tube-shaped part on the spring telescopic tube rotates intermittently; When the automobile tubular part rotates to the right side of the motor, the cylinder is extended to drive the C-shaped roundness detection arm close to the sliding sleeve, so that the C-shaped roundness detection arm moves toward one side of the sliding sleeve to the position of the standard roundness value of the automobile tubular part, ensuring that the C-shaped roundness detection arm contacts the bottom end of the outer wall of the automobile tubular part. At this time, the motor drives the driving gear to rotate counterclockwise to drive the driven gear to rotate clockwise, and the driven gear drives the four sliders between the four L-shaped plates to rotate clockwise, so that the automobile tubular part on the outer side of the four extrusion blocks rotates clockwise; S2: When there are protrusions on the outer wall of the automotive tubular part, the C-shaped roundness detection arm is squeezed by the protrusions on the automotive tubular part and moves away from the sleeve, that is, the roundness of the automotive tubular part does not meet the standard roundness value of the automotive tubular part. At this time, the U-shaped plate on the C-shaped roundness detection arm pulls the hollow deflection plate to deflect, and makes the rectangular frame disengage from the through slot to release the restriction on the spring telescopic tube. At this time, the spring telescopic tube resets and elongates to drive the sliding sleeve to move downward, so that the four sliding sleeves cooperate with the deflection plate to pull the four extrusion blocks closer to each other, releasing the internal support of the four extrusion blocks on the automotive tubular part. At this time, the automotive tubular part with unqualified outer wall roundness drops off; Conversely, when there are strip-shaped grooves on the outer wall of the automotive tubular part, the C-shaped roundness detection arm moves toward the sleeve under the thrust of the spiral spring, that is, the roundness of the automotive tubular part does not meet the standard roundness value of the automotive tubular part. At this time, the inverted L-shaped push plate on the C-shaped roundness detection arm pushes the upper end of the hollow deflection plate to deflect, and pulls the rectangular frame to move and disengage from the through slot to release the restriction on the spring telescopic tube, and then releases the internal support of the four extrusion blocks on the automotive tubular part. At this time, the unqualified automotive tubular part drops off, indicating that the outer wall roundness of the automotive tubular part does not meet the standard value; S3: When there are protrusions at the bottom end of the automotive tubular part, the C-shaped roundness detection arm is squeezed by the protrusions on the automotive tubular part to drive the convex block on the U-shaped plate to move downward, pushing the inverted L-shaped rod on the limit clamping plate to move downward and slide in the "<" shaped groove, so that the rectangular frame moves and disengages from the through slot, releasing the internal support of the four extrusion blocks on the automotive tubular part. At this time, the unqualified automotive tubular part drops off, indicating that the bottom cut of the automotive tubular part is not flush; Conversely, when there are depressions at the bottom end of the automotive tubular part, the inverted L-shaped rod moves upward and slides in the "<" shaped groove, so that the rectangular frame moves and disengages from the through slot. At this time, the unqualified automotive tubular part drops off, indicating that the bottom cut of the automotive tubular part is not flush.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, by moving the C-shaped roundness detection arm to the standard roundness position of the automotive tubular part, and through the subsequent rotation of the extrusion blocks, the C-shaped roundness detection arm detects the roundness of the automotive tubular part and the flatness of its lower end, saving procedures.

[0013] In the present invention, the motor runs to drive the wedge-shaped dial to rotate counterclockwise, squeezing the first first spring telescopic rod in its counterclockwise direction, causing the first spring telescopic rod to contract and releasing its restriction on the notched turntable. At this time, the pull spring contracts to pull the notched turntable to rotate counterclockwise by ninety degrees, and then the rotated notched turntable is clamped by another first spring telescopic rod, making the automotive tubular part on the spring telescopic tube rotate intermittently, realizing the switching of the automotive tube type, and facilitating the subsequent device to detect the roundness of the surface of the automotive tube type.

[0014] In the present invention, when there is a protrusion on the outer wall of the automotive tubular part, the C-shaped roundness detection arm is squeezed by the protrusion on the automotive tubular part and thus moves to the side away from the sleeve. At this time, the U-shaped plate on the C-shaped roundness detection arm pulls the hollow deflection plate to deflect, and makes the rectangular frame disengage from the through slot to release the restriction on the spring telescopic tube. At this time, the spring telescopic tube resets and elongates to drive the sliding sleeve to move downward, so that the four sliding sleeves cooperate with the deflection plate to pull the four extrusion blocks closer to each other, releasing the inner support of the four extrusion blocks on the automotive tubular part. At this time, the automotive tubular part with unqualified outer wall roundness drops; on the contrary, when there is a strip-shaped groove on the outer wall of the automotive tubular part, the C-shaped roundness detection arm moves to the side close to the sleeve under the thrust of the spiral spring. At this time, the inverted L-shaped push plate on the C-shaped roundness detection arm pushes the upper end of the hollow deflection plate to deflect, and pulls the rectangular frame to move and disengage from the through slot to release the restriction on the spring telescopic tube, and further releases the inner support of the four extrusion blocks on the automotive tubular part. At this time, the automotive tubular part with unqualified outer wall roundness drops, completing the detection of the outer wall roundness of the automotive tubular part by the device.

[0015] In the present invention, when there is a protrusion at the bottom end of the automotive tubular part, the C-shaped roundness detection arm is squeezed by the protrusion on the automotive tubular part to drive the convex block on the U-shaped plate to move downward, pushing the inverted L-shaped rod on the limit clamping plate to move downward and slide in the "<" shaped groove, so that the rectangular frame moves and disengages from the through slot, releasing the inner support of the four extrusion blocks on the automotive tubular part. At this time, the automotive tubular part with uneven end face drops; on the contrary, when there is a depression at the bottom end of the automotive tubular part, the inverted L-shaped rod moves upward and slides in the "<" shaped groove, so that the rectangular frame moves and disengages from the through slot. At this time, the automotive tubular part with uneven end face drops, completing the detection of the end face flatness of the automotive tubular part by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure of the present invention Figure One ; Figure 2 is a schematic three-dimensional structure of the present invention Figure Two ; Figure 3 is a partial schematic three-dimensional sectional view of the present invention; Figure 4 is a partial schematic three-dimensional structure diagram of the present invention; Figure 5 is a schematic three-dimensional structure diagram of the spiral spring and the shaped plate of the present invention; Figure 6 In the present invention Figure 5 is an enlarged view of the structure at A; Figure 7 is a schematic three-dimensional structure diagram of the fixed tube and the rectangular frame of the present invention; Figure 8 is a schematic three-dimensional structure diagram of the extrusion block and the rubber block of the present invention; Figure 9This is a three-dimensional structural schematic diagram of the rubber block and the deflection plate of the present invention; Figure 10 This is a three-dimensional structural sectional view of the spring telescopic tube of the present invention.

[0017] In the figure: 1. Base; 2. Motor; 3. Intermittent switching mechanism; 31. Wedge-shaped dial; 32. Tension spring; 33. Notch turntable; 34. First spring telescopic rod; 35. Fixed circular tube frame; 36. L-shaped support block; 4. Inner support mechanism for pipe fittings; 41. Spring telescopic tube; 42. Driven gear; 43. Driving gear; 44. L-shaped plate; 45. Slide block; 46. Extrusion block; 47. Rubber block; 48. Deflection plate; 49. Slide sleeve; 410. Through groove; 411. Sleeve; 5. Locking mechanism; 51. Fixed tube; 52. Second spring telescopic rod; 53. Hollow deflection plate; 54. Rectangular frame; 55. Cross-shaped limiting plate; 56. Third spring telescopic rod; 57. Limit clamping plate; 58. Inverted L-shaped rod; 59. "<" shaped groove; 6. Pipe roundness detection mechanism; 61. Cylinder; 62. Helical spring; 63. C-shaped roundness detection arm; 64. Inverted L-shaped push plate; 65. U-shaped plate; 66. Convex block; 7. Lifting table. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical staff in the art without creative work fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 to 10 , the present invention provides a technical solution: an automobile pipe fitting detection device, including a base 1, a motor 2 is fixedly connected to the center of the top surface of the base 1, and an intermittent switching mechanism 3 is fixedly connected to the top surface of the side of the rotating shaft of the motor 2. The intermittent switching mechanism 3 includes a wedge-shaped dial 31 fixed on the rotating shaft of the motor 2, a tension spring 32 is fixedly connected to the wedge-shaped dial 31, and one end of the tension spring 32 away from the wedge-shaped dial 31 is fixedly connected to a notch turntable 33, and the notch turntable 33 is rotatably connected to the rotating shaft of the motor 2; On the side of the notched turntable 33, there are four first spring telescopic rods 34 in contact. One end of the four first spring telescopic rods 34 facing the notched turntable 33 is beveled. One of the first spring telescopic rods 34 with a beveled end is in contact within the notch of the notched turntable 33. The ends of the four first spring telescopic rods 34 far from the notched turntable 33 are fixedly connected to a fixed circular tube frame 35. The fixed circular tube frame 35 consists of a tube body and two connecting plates, and the two connecting plates are fixed on the lower end face of the tube body. The fixed circular tube frame 35 is fixed on the top surface of the base 1. An L-shaped support block 36 is fixedly connected to the inner wall of the fixed circular tube frame 35, and the L-shaped support block 36 is lapped on the outside of the notched turntable 33; the L-shaped support block 36 ensures that the notched turntable 33 rotates stably on it; A tube-shaped fitting inner support mechanism 4 is fixedly connected to the bottom surface of the notched turntable 33.

[0020] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 9 , Figure 10 shown, the tube-shaped fitting inner support mechanism 4 includes a spring telescopic tube 41 fixed to the bottom surface of the notched turntable 33. A driven gear 42 is rotatably connected to the outside of the outer tube of the spring telescopic tube 41. A driving gear 43 is engaged with the driven gear 42, and the driving gear 43 is fixedly sleeved on the rotating shaft of the motor 2; Four L-shaped plates 44 are fixedly connected to the bottom surface of the driven gear 42, and a sleeve 411 is fixedly connected to the outside of the four L-shaped plates 44. The four L-shaped plates 44 form a "cross" groove, and the four L-shaped plates 44 are on the outside of the inner tube of the spring telescopic tube 41. Sliders 45 slide between every two of the four L-shaped plates 44. An extrusion block 46 is fixedly connected to the bottom surface of the slider 45, and a rubber block 47 is adhered to the extrusion block 46; Two deflection plates 48 are hinged to the side of the extrusion block 46 facing away from the rubber block 47. One end of the two deflection plates 48 far from the extrusion block 46 is hinged to a sliding sleeve 49, and the sliding sleeve 49 is rotatably sleeved on the inner tube of the spring telescopic tube 41; A locking mechanism 5 is arranged on the outer tube of the spring telescopic tube 41, and the locking mechanism 5 abuts in a through groove 410 formed on the inner tube and the outer tube of the spring telescopic tube 41.

[0021] In this embodiment, as Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, the locking mechanism 5 includes a fixed pipe 51 fixedly sleeved on the outer pipe of the spring telescopic pipe 41. A second spring telescopic rod 52 is hinged to the outside of the fixed pipe 51. One end of the second spring telescopic rod 52 away from the spring telescopic pipe 41 is hinged to a hollow deflection plate 53, and the middle of the hollow deflection plate 53 is hinged to the outer wall of the fixed pipe 51; A rectangular frame 54 is slidably arranged in the chute of the hollow deflection plate 53. One side of the rectangular frame 54 away from the hollow deflection plate 53 is an inclined surface, and the side of the rectangular frame 54 with the inclined surface abuts against the through groove 410 to lock the contracted spring telescopic pipe 41; A cross-shaped limiting plate 55 is slidably arranged inside the rectangular frame 54, and the cross-shaped limiting plate 55 is fixed to the bottom end of the fixed pipe 51.

[0022] In this embodiment, as Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 As shown, a third spring telescopic rod 56 is fixedly connected to the bottom surface of the cross-shaped limiting plate 55. The bottom end of the third spring telescopic rod 56 is fixedly connected to a limiting card plate 57. Inverted L-shaped rods 58 are fixedly connected to both sides of the limiting card plate 57, and one end of the inverted L-shaped rod 58 is a cylinder; The cylindrical end of the inverted L-shaped rod 58 abuts against the "<" shaped groove 59 opened on the side surface of the rectangular frame 54.

[0023] In this embodiment, as Figure 1 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 As shown, a pipe fitting roundness detection mechanism 6 is fixedly connected to the fixed circular pipe rack 35. The pipe fitting roundness detection mechanism 6 includes a cylinder 61 obliquely fixed to the fixed circular pipe rack 35. A spiral spring 62 is movably sleeved on the end of the cylinder 61. One end of the spiral spring 62 is fixed to the telescopic rod of the cylinder 61, and the other end of the spiral spring 62 is fixed to a C-shaped roundness detection arm 63. An inverted L-shaped push plate 64 is fixedly connected to the upper end of the C-shaped roundness detection arm 63, and the upper side of the end of the inverted L-shaped push plate 64 away from the C-shaped roundness detection arm 63 abuts against the upper end of the hollow deflection plate 53; The lower side of the end of the inverted L-shaped push plate 64 away from the C-shaped roundness detection arm 63 is fixedly connected to a U-shaped plate 65. The end of the U-shaped plate 65 away from the C-shaped roundness detection arm 63 abuts against the lower end of the hollow deflection plate 53. A convex block 66 is fixedly connected to one side of the U-shaped plate 65 away from the C-shaped roundness detection arm 63, and the convex block 66 abuts inside the limiting card plate 57.

[0024] In this embodiment, as Figure 6 、 Figure 7As shown, the limit clamping plate 57 includes a rectangular plate and a rectangular groove, and the rectangular groove is opened on the rectangular plate, and the convex block 66 is lapped in the rectangular groove.

[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 shown, the fixed circular pipe rack 35 is composed of a hollow pipe and two connecting columns, and the hollow pipe is fixed on the top surface of the base 1 through the connecting columns.

[0026] The usage method and advantages of the present invention: The usage method of the automotive pipe fitting detection device is as follows, and the working process is as follows: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 shown: S1: Lift the automotive pipe fitting whose outer wall roundness and end flatness need to be detected through the lifting platform 7. At this time, the top surface of the lifting platform 7 abuts against the bottom end of the spring telescopic tube 41, causing the spring telescopic tube 41 to contract and drive the sliding sleeve 49 to move upward, prompting the four sets of deflecting plates 48 on the sliding sleeve 49 to deflect simultaneously, driving the slider 45 to slide between the four L-shaped plates 44, causing the four pressing blocks 46 to expand, and after cooperating with the rubber block 47 to abut against the inner wall of the automotive pipe fitting, the rectangular frame 54 is inserted into the through groove 410 on the inner tube of the spring telescopic tube 41 to lock the four pressing blocks 46 that expand and internally support in the automotive pipe fitting; Then, operate the motor 2 to drive the wedge-shaped dial 31 to rotate counterclockwise and pull the tension spring 32 to stretch. By rotating the wedge-shaped dial 31, the end with an inclined surface thereof presses the first spring telescopic rod 34 in the counterclockwise direction, causing the first spring telescopic rod 34 to contract and releasing its restriction on the notched turntable 33. At this time, by the contraction of the tension spring 32, the notched turntable 33 is pulled to rotate counterclockwise by ninety degrees, and then the notch of the rotated notched turntable 33 is abutted and locked by the second spring telescopic rod 34 in the counterclockwise direction, causing the automotive pipe fitting to rotate intermittently by ninety degrees following the spring telescopic tube 41; After the automotive tubular part rotates to the right side of the motor 2, the cylinder 61 extends to drive the C-shaped roundness detection arm 63 to approach the sliding sleeve 49, so that the side of the C-shaped roundness detection arm 63 facing the sliding sleeve 49 moves to the position of the standard roundness value of the automotive tubular part, ensuring that the C-shaped roundness detection arm 63 abuts against the bottom end of the outer wall of the automotive tubular part, and the vertical rod in the middle of the C-shaped roundness detection arm 63 abuts against the outer wall of the automotive tubular part. The roundness of the outer wall of the automotive tubular part is detected by the vertical rod in the middle of the C-shaped roundness detection arm 63. At this time, the operation of the motor 2 drives the driving gear 43 to rotate counterclockwise to drive the driven gear 42 to rotate clockwise, and the four sliders 45 between the four L-shaped plates 44 are driven by the driven gear 42 to rotate clockwise, so that the automotive tubular part on the outer sides of the four pressing blocks 46 rotates clockwise; S2: When there is a protrusion on the outer wall of the automotive tubular part, the C-shaped roundness detection arm 63 is squeezed by the protrusion on the automotive tubular part and thus moves to the side away from the sleeve 411, that is, the roundness of the automotive tubular part does not conform to the standard roundness value of the automotive tubular part. At this time, the U-shaped plate 65 on the C-shaped roundness detection arm 63 pulls the hollow deflection plate 53 to deflect, and makes the rectangular frame 54 disengage from the through groove 410 to release the restriction on the spring telescopic tube 41. At this time, the spring telescopic tube 41 resets and extends to drive the sliding sleeve 49 to move downward, so that the four sliding sleeves 49 cooperate with the deflection plate 48 to pull the four pressing blocks 46 closer to each other, releasing the inner support of the four pressing blocks 46 on the automotive tubular part. At this time, the automotive tubular part with non-standard roundness value drops; When there is a strip-shaped groove on the outer wall of the automotive tubular part, the C-shaped roundness detection arm 63 moves to the side close to the sleeve 411 under the thrust of the spiral spring 62, that is, the roundness of the automotive tubular part does not conform to the standard roundness value of the automotive tubular part. At this time, the inverted L-shaped push plate 64 on the C-shaped roundness detection arm 63 pushes the upper end of the hollow deflection plate 53 to deflect, and pulls the rectangular frame 54 to move and disengage from the through groove 410 to release the restriction on the spring telescopic tube 41, and further releases the inner support of the four pressing blocks 46 on the automotive tubular part. At this time, the automotive tubular part with unqualified roundness drops; When there is a protrusion at the bottom end of the automotive tubular part, the C-shaped roundness detection arm 63 is squeezed by the protrusion on the automotive tubular part to drive the convex block 66 on the U-shaped plate 65 to move downward, and pushes the inverted L-shaped rod 58 on the limit clamping plate 57 to slide downward in the "<" shaped groove 59, so that the rectangular frame 54 moves and disengages from the through groove 410, releasing the inner support of the four pressing blocks 46 on the automotive tubular part. At this time, the unqualified automotive tubular part drops, that is, it indicates that the bottom cut of the automotive tubular part is not flush; When the bottom end of the automotive tubular part has a depression, the C-shaped roundness detection arm 63 moves into the depression on the bottom surface of the automotive tubular part under the thrust of the spiral spring 62, driving the bump 66 on the U-shaped plate 65 to push the inverted L-shaped rod 58 on the limit clamping plate 57 to slide upward in the "<"-shaped groove 59, causing the rectangular frame 54 to move and disengage from the through groove 410, releasing the inner support of the four pressing blocks 46 on the automotive tubular part. At this time, the unqualified automotive tubular part drops, indicating that the bottom end cut of the automotive tubular part is uneven; S3: If the roundness of the outer wall and the flatness of the end face of the automotive tubular part are both qualified, then the automotive tubular part, driven by the notch turntable 33, moves to the left side of the motor 2. Then, through the contraction of the left cylinder 61, the U-shaped plate 65 on the C-shaped roundness detection arm 63 is pulled to move leftward and push the hollow deflection plate 53 to deflect, driving the rectangular frame 54 to move and disengage from the through groove 410, releasing the inner support of the four pressing blocks 46 on the automotive tubular part. At this time, the qualified automotive tubular part drops, completing the detection of the roundness of the outer wall of the automotive tubular part by the device.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile pipe-type fitting detection device, comprising a base (1), characterized in that: At the center of the top surface of the base (1), a motor (2) is fixedly connected. At the edge of the top surface of the base (1), a lifting platform (7) is fixedly connected. On the top surface of the side of the rotating shaft of the motor (2), an intermittent switching mechanism (3) is fixedly connected. The intermittent switching mechanism (3) includes a wedge-shaped dial (31) fixed on the rotating shaft of the motor (2). A tension spring (32) is fixedly connected to the wedge-shaped dial (31). The end of the tension spring (32) away from the wedge-shaped dial (31) is fixedly connected to a notched turntable (33). The notched turntable (33) is rotatably connected to the rotating shaft of the motor (2). Four first spring telescopic rods (34) are in contact with the side surface of the notched turntable (33). The ends of the four first spring telescopic rods (34) facing the notched turntable (33) are inclined planes. One of the first spring telescopic rods (34) with an inclined plane end is in contact with the notch of the notched turntable (33). The ends of the four first spring telescopic rods (34) away from the notched turntable (33) are fixedly connected to a fixed circular tube frame (35). The fixed circular tube frame (35) is fixed on the top surface of the base (1). An L-shaped support block (36) is fixedly connected to the inner wall of the fixed circular tube frame (35), and the L-shaped support block (36) is lapped on the outer side of the notched turntable (33). A pipe fitting inner support mechanism (4) is fixedly connected to the bottom surface of the notched turntable (33).

2. The automotive pipe-shaped fitting detection device according to claim 1, wherein: The pipe fitting inner support mechanism (4) includes a spring telescopic tube (41) fixed to the bottom surface of the notched turntable (33). A driven gear (42) is rotatably connected to the outer side of the outer tube of the spring telescopic tube (41). A driving gear (43) is meshed with the driven gear (42), and the driving gear (43) is fixedly sleeved on the rotating shaft of the motor (2). Four L-shaped plates (44) are fixedly connected to the bottom surface of the driven gear (42). The outer sides of the four L-shaped plates (44) are fixedly connected to a sleeve (411). The four L-shaped plates (44) form a "plus" shaped groove, and the four L-shaped plates (44) are on the outer side of the inner tube of the spring telescopic tube (41). Sliders (45) slide between every two of the four L-shaped plates (44). An extrusion block (46) is fixedly connected to the bottom surface of the slider (45), and a rubber block (47) is bonded to the extrusion block (46). Two deflecting plates (48) are hinged to the side of the extrusion block (46) facing away from the rubber block (47). The ends of the two deflecting plates (48) away from the extrusion block (46) are hinged to a sliding sleeve (49). The sliding sleeve (49) is rotatably sleeved on the inner tube of the spring telescopic tube (41). A locking mechanism (5) is arranged on the outer tube of the spring telescopic tube (41). The locking mechanism (5) is in contact with a through groove (410) opened on the inner tube and the outer tube of the spring telescopic tube (41).

3. The automotive tubular fitting detection device according to claim 2, wherein: As described above, the locking mechanism (5) includes a fixed pipe (51) fixedly sleeved on the outer pipe of the spring telescopic pipe (41). A second spring telescopic rod (52) is hinged to the outer side of the fixed pipe (51). One end of the second spring telescopic rod (52) far from the spring telescopic pipe (41) is hinged to a hollow deflection plate (53), and the middle of the hollow deflection plate (53) is hinged to the outer wall of the fixed pipe (51). A rectangular frame (54) is slidably arranged in the chute of the hollow deflection plate (53). One side of the rectangular frame (54) far from the hollow deflection plate (53) is an inclined surface, and the side of the rectangular frame (54) with the inclined surface abuts against the through groove (410) to lock the contracted spring telescopic pipe (41). A cross-shaped limiting plate (55) is slidably arranged inside the rectangular frame (54), and the cross-shaped limiting plate (55) is fixed to the bottom end of the fixed pipe (51).

4. An automotive pipe fitting detection device according to claim 3, characterized in that: A third spring telescopic rod (56) is fixedly connected to the bottom surface of the cross-shaped limiting plate (55). The bottom end of the third spring telescopic rod (56) is fixedly connected to a limiting clamping plate (57). Inverted L-shaped rods (58) are fixedly connected to both sides of the limiting clamping plate (57), and one end of the inverted L-shaped rod (58) is a cylinder. The end of the inverted L-shaped rod (58) that is a cylinder abuts against the "<"-shaped groove (59) opened on the side surface of the rectangular frame (54).

5. The inspection device for an automotive tubular fitting according to claim 1, wherein: A pipe part roundness detection mechanism (6) is fixedly connected to the fixed circular pipe frame (35). The pipe part roundness detection mechanism (6) includes a cylinder (61) obliquely fixed to the fixed circular pipe frame (35). A spiral spring (62) is movably sleeved on the end of the cylinder (61). One end of the spiral spring (62) is fixed to the telescopic rod of the cylinder (61), and the other end of the spiral spring (62) is fixed to a C-shaped roundness detection arm (63). An inverted L-shaped push plate (64) is fixedly connected to the upper end of the C-shaped roundness detection arm (63), and the upper side of the end of the inverted L-shaped push plate (64) far from the C-shaped roundness detection arm (63) is lapped on the upper end of the hollow deflection plate (53). A U-shaped plate (65) is fixedly connected to the lower side of the end of the inverted L-shaped push plate (64) far from the C-shaped roundness detection arm (63). One end of the U-shaped plate (65) far from the C-shaped roundness detection arm (63) is lapped on the lower end of the hollow deflection plate (53). A convex block (66) is fixedly connected to the side of the U-shaped plate (65) far from the C-shaped roundness detection arm (63), and the convex block (66) is lapped inside the limiting clamping plate (57).

6. The automotive tubular fitting detection device according to claim 5, wherein: The limiting clamping plate (57) includes a rectangular plate and a rectangular groove, and the rectangular groove is opened on the rectangular plate. The convex block (66) is lapped in the rectangular groove.

7. The inspection device for an automotive tubular fitting according to claim 1, characterized in that: The fixed circular pipe frame (35) is composed of a hollow pipe and two connecting columns, and the hollow pipe is fixed to the top surface of the base (1) through the connecting columns.

8. The usage method of a detection device for automotive pipe-shaped fittings according to claim 6, characterized in that: Including the following steps: S1: Lift up the automotive tubular part whose outer wall roundness and the flatness of its end need to be detected by the lifting platform (7), and at the same time push the spring telescopic tube (41) to contract, driving the sliding sleeve (49) to move upward. Under the action of the upward movement of the sliding sleeve (49), the eight rotating plates (48) drive the four pressing blocks (46) on the four sliders (45) to expand, supporting the automotive tubular part on the outside of the four rubber blocks (47). And insert the rectangular frame (54) into the through groove (410) to lock the contracted spring telescopic tube (41); Then, operate the motor (2) to drive the wedge-shaped deflector (31) to rotate counterclockwise, squeezing the first first spring telescopic rod (34) in its counterclockwise direction, causing the first spring telescopic rod (34) to contract and releasing its restriction on the notched turntable (33). At this time, the tension spring (32) contracts to pull the notched turntable (33) to rotate counterclockwise by ninety degrees, and then the rotated notched turntable (33) is clamped by another first spring telescopic rod (34), making the automotive tubular part on the spring telescopic tube (41) rotate intermittently; When the automotive tubular part rotates to the right side of the motor (2), the cylinder (61) extends to drive the C-shaped roundness detection arm (63) to approach the sliding sleeve (49), so that the side of the C-shaped roundness detection arm (63) facing the sliding sleeve (49) moves to the position of the standard roundness value of the automotive tubular part, ensuring that the C-shaped roundness detection arm (63) abuts against the bottom end of the outer wall of the automotive tubular part. At this time, the motor (2) drives the driving gear (43) to rotate counterclockwise to drive the driven gear (42) to rotate clockwise, and the driven gear (42) drives the four sliders (45) between the four L-shaped plates (44) to rotate clockwise, making the automotive tubular part on the outside of the four pressing blocks (46) rotate clockwise; S2: When there is a protrusion on the outer wall of the automotive tubular part, the C-shaped roundness detection arm (63) is squeezed by the protrusion on the automotive tubular part and thus moves to the side away from the sleeve (411), that is, the roundness of this automotive tubular part does not meet the standard roundness value of the automotive tubular part. At this time, the U-shaped plate (65) on the C-shaped roundness detection arm (63) pulls the hollow deflector (53) to deflect, and makes the rectangular frame (54) disengage from the through groove (410) to release the restriction on the spring telescopic tube (41). At this time, the spring telescopic tube (41) resets and extends to drive the sliding sleeve (49) to move downward, so that the four sliding sleeves (49) cooperate with the deflector (48) to pull the four pressing blocks (46) closer to each other, releasing the inner support of the four pressing blocks (46) on the automotive tubular part. At this time, the automotive tubular part with unqualified outer wall roundness drops; Conversely, when there are strip-shaped grooves on the outer wall of the automotive tubular part, the C-shaped roundness detection arm (63) moves towards the side close to the sleeve (411) under the thrust of the helical spring (62), that is, the roundness of the automotive tubular part does not conform to the standard roundness value of the automotive tubular part. At this time, the inverted L-shaped push plate (64) on the C-shaped roundness detection arm (63) pushes the upper end of the hollow deflection plate (53) to deflect, and pulls the rectangular frame (54) to move and disengage from the through slot (410), releasing the restriction on the spring telescopic tube (41), and further releasing the internal support of the four extrusion blocks (46) on the automotive tubular part. At this time, the unqualified automotive tubular part drops, indicating that the outer wall roundness of the automotive tubular part does not conform to the standard value; S3: When there is a protrusion at the bottom end of the automotive tubular part, the C-shaped roundness detection arm (63) is driven by the extrusion of the protrusion on the automotive tubular part to drive the bump (66) on the U-shaped plate (65) to move downward, pushing the inverted L-shaped rod (58) on the limit clamping plate (57) to slide downward in the "<"-shaped groove (59), causing the rectangular frame (54) to move and disengage from the through slot (410), releasing the internal support of the four extrusion blocks (46) on the automotive tubular part. At this time, the unqualified automotive tubular part drops, indicating that the bottom end cut of the automotive tubular part is not flush; Conversely, when there is a depression at the bottom end of the automotive tubular part, the inverted L-shaped rod (58) slides upward in the "<"-shaped groove (59), causing the rectangular frame (54) to move and disengage from the through slot (410). At this time, the unqualified automotive tubular part drops, indicating that the bottom end cut of the automotive tubular part is not flush.

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