Pressure casting air hole detection equipment

Abstract

The invention discloses die casting air hole detection equipment, and relates to the technical field of defect detection.The die casting air hole detection equipment comprises a workbench, a clamp assembly is fixedly connected to the inner wall of the edge of the workbench, a mounting frame is fixedly connected to the side, close to the clamp assembly, of the top of the workbench, and a strong light lamp is fixedly connected to the middle of the mounting frame; through the arrangement of the detection range regulation and control mechanism, the detection rod can be rotated in a reciprocating manner by utilizing the reverse movement of a movable rod and a swing rod in cooperation with the rotation effect of a bidirectional threaded rod, so that the industrial camera for detection can move in a reciprocating manner along with the detection rod, and transverse reciprocating glancing detection is performed on the inner cavity of a casting; the transverse distance is uniformly covered, the detection device and the probe rod are fixed to guarantee the stability, the reciprocating glancing amplitude can be changed at any time according to the to-be-detected range of the casting so as to adapt to the complexity of the casting, castings of different sizes and shapes can be detected, and the detection flexibility and the detection efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of defect detection, and in particular to a die casting pore detection device. Background Art

[0002] Die castings refer to castings formed by injecting molten metal into a mold using hydraulic pressure and then cooling and solidifying it. They have a wide range of practical applications. For this type of castings, especially complex hydraulic castings, pore defects are prone to occur during the die casting process, and deeper pores lead to weak outer walls of the castings, which are prone to leakage and other safety issues during use. The current low-cost, simple and effective method is to use optical means, mainly using transmitted light detection and X-ray detection to detect pores in the inner cavity of the casting for quality inspection.

[0003] In the prior art, when using transmitted light to detect porosity defects in the inner cavity of a casting, a high-intensity light source is first used to illuminate the surface of the casting, and then a detection device is inserted through an opening on the surface of the casting to observe the interior. The detection device in the inner cavity is then used to capture anomalies in the transmitted light, such as brightness changes caused by pores. Porosity is usually different from the density and refractive index of the surrounding material, so there will be a higher contrast, and the place where the pores exist is obviously brighter than the surrounding area. However, in the prior art, for the detection of the inner cavity of complex hydraulic castings, the probes commonly used are usually limited in movement range and distance to prevent collision damage, and some tiny porosity defects may be missed. The probes are not comprehensive and accurate enough, and the support rods connecting the probes are also set to be thin, which is easy to bend and damaged when detecting corners. The detection efficiency is low and cannot meet the needs of large-scale production.

[0004] In addition, after detection, although the current probes can transmit images of the pores to the system and then issue a warning, the castings themselves are usually not accurately marked. In the case of a small number of pores, these castings can continue to be used by welding repair, but the lack of accurate marking makes subsequent repair work difficult to accurately locate, which not only increases the difficulty and time cost of the repair, but may also affect the repair effect due to inaccurate positioning, which reduces production efficiency to a certain extent and increases unnecessary cost investment.

[0005] In view of this, the present invention proposes a die casting porosity detection device to make up for and improve the deficiencies of the prior art. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a die-casting porosity detection device which can improve the flexibility and efficiency of detection; can improve the accuracy of detection and the reliability of detection results; and can reduce production costs, so as to solve the corresponding technical problems raised in the above background technology.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: a die casting pore detection device, including a workbench, the inner wall of the edge of the workbench is fixedly connected to a fixture assembly, the top of the workbench is fixedly connected to a mounting frame on one side close to the fixture assembly, the middle of the mounting frame is fixedly connected to a strong light fixture, the middle of the workbench is fixedly connected to a U-shaped plate, and also includes: The detection range control mechanism is used to arbitrarily adjust the scanning range of the equipment when detecting porosity defects of complex hydraulic castings; The air hole marking mechanism is used to mark the air hole in real time when it is detected.

[0008] Preferably, the detection range control mechanism includes a servo motor fixedly connected to the top of the U-shaped plate, the output end of the servo motor is fixedly connected to a bidirectional threaded rod, the outer wall of the bidirectional threaded rod is threadedly connected to a pair of sliders, the outer walls of the pair of sliders are slidably connected to the U-shaped plate, the bottom of the bidirectional threaded rod rotates through a third support plate, the outer wall of the third support plate is fixedly connected to the outer wall of the U-shaped plate, the end of the bidirectional threaded rod away from the servo motor is fixedly connected to an upper bevel gear, the side of the upper bevel gear away from the bidirectional threaded rod is rotatably connected to a rotating rod, and the middle of the rotating rod rotates The gears are connected to the U-shaped plate at the center thereof, and the edges of the upper and lower bevel gears on one side close to each other are fixedly connected to a slot box, and the inner walls of the two slot boxes are slidably connected to telescopic wedges, and the sides of the two telescopic wedges away from the rotating rod are fixedly connected to a second spring, and the sides of the two second springs away from the telescopic wedges are fixedly connected to the inner wall of the slot box, and the outer walls of the telescopic wedges are slidably clamped with a one-way gear, and the two one-way gears are fixedly connected to the outer wall of the rotating rod.

[0009] The cam is provided with a plurality of through holes on one side of the connecting rod and a plurality of through holes on the other side of the connecting rod, and a locking rod is provided on the locking rod so as to be detachably connected to the connecting rod.

[0010] Preferably, the detection range control mechanism also includes a first support plate, the first support plate is fixedly connected to the side of the top of the workbench away from the high-intensity lamp, the first support plate is fixedly connected to a guide rod on the side close to the probe rod, a first spring is sleeved on the side of the guide rod away from the probe rod, one end of the first spring is fixedly connected to the outer wall of the first support plate, the other end of the first spring is slidably connected to the inner wall of the slide plate, the outer wall of the side of the probe rod away from the first support plate is slidably connected to a second support plate, and the bottom of the second support plate is fixedly connected to the workbench.

[0011] Preferably, the pore marking mechanism includes an industrial camera, and a pair of industrial cameras are provided, and the pair of industrial cameras are fixedly connected to the side of the probe rod away from the first support plate, a battery is fixedly connected to one side of the outer wall of the industrial camera, and a small electric push rod is fixedly connected to the other side of the outer wall of the industrial camera, and a sponge head is fixedly connected to the output end of the small electric push rod, and a protective frame is also fixedly connected to the end of the probe rod close to the industrial camera.

[0012] Preferably, the battery, the industrial camera and the small electric push rod are electrically connected to each other.

[0013] Preferably, a pair of the industrial cameras are arranged perpendicular to each other, one of the industrial cameras is arranged upward, and the other of the industrial cameras is arranged in a direction away from the probe rod.

[0014] Preferably, protrusions are fixedly connected to both sides of the limiting sleeve, and the limiting sleeve is slidably connected to the straight long groove via the protrusions.

[0015] Preferably, the probe rod is movably sleeved on the outer wall of the guide rod, and the guide rod extends from a side away from the first support plate to the position of the second support plate.

[0016] Preferably, the tooth groove directions of the two one-way gears are consistent, and the two telescopic wedges are provided with a bevel angle matching the one-way gear on one side thereof.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Due to the complexity of die castings, the detection range control mechanism is set up, and the reverse movement of the movable rod and the swing rod can be used to cooperate with the rotation of the bidirectional threaded rod to reciprocate the probe rod, so that the industrial camera for detection can move back and forth accordingly, and perform lateral reciprocating scanning detection on the inner cavity of the casting to evenly cover the lateral distance. The detection device is fixed to the probe rod to ensure its stability, and the amplitude of the reciprocating scanning can be changed at any time according to the detection range of the casting to adapt to the complexity of the casting. Castings of different sizes and shapes can be detected, which improves the flexibility and efficiency of detection. The adjustable lateral reciprocating amplitude can avoid the support rod connecting the probe from being bent and damaged when detecting corners.

[0018] 2. Through the setting of one-way gears and pulling ropes, no matter whether the two-way threaded rod rotates forward or reverse, the three bevel gears and one-way gears can cooperate with the telescopic wedge to make the rotating rod rotate in only one direction. This design enhances the adaptability of the detection system. No matter how the swing amplitude is adjusted, it will not affect the rotation of the rotating rod. It can adapt to different types of die-castings and detection needs, so that the winding column set at the bottom can smoothly wind the pulling rope, and finally extend the probe rod into the inner cavity of the casting at a uniform speed. With the reciprocating rotation of the probe rod, the industrial camera moves forward in a wave trajectory, which can not only perform horizontal reciprocating scanning and detection, but also penetrate into the inner cavity of the casting vertically, realizing all-round coverage detection of the entire range to be detected, improving the detection accuracy and the reliability of the detection results, and the simple setting of the mechanism makes the detection system easy to diagnose and repair when a fault occurs, improving the maintainability of the system and extending the service life of the equipment.

[0019] 3. Through the setting of the pore marking mechanism, a pair of industrial cameras are set vertically to each other, and one industrial camera is set upward, and the other industrial camera is set in the direction away from the probe rod. Among them, the industrial camera set upward can ensure that the probe rod reciprocates and accurately drives the industrial camera to evenly scan the inner cavity of the casting, ensuring that the camera can evenly scan the inner cavity of the casting, avoiding the occurrence of detection blind spots, and the industrial camera set in the direction away from the probe rod can determine the detection depth, so as to increase the detection range as much as possible and further improve the detection accuracy.

[0020] 4. The tilted setting of the sponge head not only facilitates marking the position of the pore defect, but also the tilted sponge head covers the pore defect and its surrounding area more accurately, with a certain degree of fault tolerance, ensuring that the marking position is accurate. After the pore marking is completed, accurate marking helps engineers quickly locate the pore defect, so as to carry out repair work more efficiently. When the number of pore marks exceeds a certain threshold, the system can automatically stop detection and report damage, which means that there is no need to perform detailed inspection on each pore, thereby saving time and improving detection efficiency. And by reducing the production of defective products, the overall production cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 It is a bottom-up three-dimensional structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the movable rod connection shown in the present invention; Figure 4 The present invention shows Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of a side-view stereoscopic structure of the present invention; Figure 6 It is a structural schematic diagram of the one-way gear connection shown in the present invention; Figure 7 The present invention shows Figure 6 The enlarged structural diagram at B in the middle; Figure 8 It is a structural schematic diagram of the guide rod connection shown in the present invention; Fig. 9 It is a structural schematic diagram of the connection of the hook rod shown in the present invention; Fig.10 A cross-sectional view of the connection of the winding pole shown in the present invention; Fig.11 It is a schematic structural diagram of the connection of the protection frame shown in the present invention.

[0022] The numbers in the figure are: 1. Workbench; 2. Fixture assembly; 3. Mounting frame; 4. High-intensity lamp; 5. U-shaped plate; 6. Detection range control mechanism; 61. First support plate; 62. First spring; 63. Slide plate; 64. Pull rope; 65. Probe rod; 66. Servo motor; 67. Slider; 68. Bidirectional threaded rod; 69. Movable rod; 610. Second support plate; 611. Swing rod; 612. Limit sleeve; 613. Straight long groove; 614. Second spring; 615. Third support plate; 616. Upper bevel gear; 617. Rotating rod; 618. One-way gear; 619. Telescopic wedge; 620. Slot box; 621. Middle bevel gear; 622. Lower bevel gear; 623. Baffle; 624. Guide rod; 625. Winding column; 626. Hook rod; 627. Lock rod; 628. Connecting column; 7. Air hole marking mechanism; 71. Industrial camera; 72. Protective frame; 73. Battery; 74. Small electric push rod; 75. Sponge head. DETAILED DESCRIPTION

[0023] 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 described embodiments 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.

[0024] Embodiments of the present invention: Please refer to Figures 1 to 11 As shown, a die casting pore detection device includes a workbench 1, a fixture assembly 2 is fixedly connected to the inner wall of the edge of the workbench 1, a mounting frame 3 is fixedly connected to the side of the top of the workbench 1 close to the fixture assembly 2, a strong light fixture 4 is fixedly connected to the middle of the mounting frame 3, and a U-shaped plate 5 is fixedly connected to the middle of the workbench 1, and also includes: A detection range control mechanism 6, used to arbitrarily adjust the scanning range of the device when detecting porosity defects of complex hydraulic castings; The pore marking mechanism 7 is used to mark the pores in real time when they are detected.

[0025] The detection range regulating mechanism 6 includes a servo motor 66 fixedly connected to the top of the U-shaped plate 5, the output end of the servo motor 66 is fixedly connected to a bidirectional threaded rod 68, the outer wall of the bidirectional threaded rod 68 is threadedly connected to a pair of sliders 67, the outer walls of the pair of sliders 67 are slidably connected to the U-shaped plate 5, the bottom of the bidirectional threaded rod 68 rotates through a third support plate 615, the outer wall of the third support plate 615 is fixedly connected to the outer wall of the U-shaped plate 5, the end of the bidirectional threaded rod 68 away from the servo motor 66 is fixedly connected to an upper bevel gear 616, the side of the upper bevel gear 616 away from the bidirectional threaded rod 68 is rotatably connected to a rotating rod 617, the middle part of the rotating rod 617 is rotatably connected to a lower bevel gear 622, and the upper bevel gear 622 is rotatably connected to the upper bevel gear 622. The gear 616 and the lower bevel gear 622 are meshed and connected with the middle bevel gear 621, and the center of the middle bevel gear 621 is rotatably connected to the U-shaped plate 5. The edges of the upper bevel gear 616 and the lower bevel gear 622 on one side close to each other are fixedly connected to the groove box 620, and the inner walls of the two groove boxes 620 are slidably connected with telescopic wedges 619. The sides of the two telescopic wedges 619 away from the rotating rod 617 are fixedly connected with the second spring 614, and the sides of the two second springs 614 away from the telescopic wedges 619 are fixedly connected to the inner wall of the groove box 620, and the outer walls of the telescopic wedges 619 are slidably clamped with one-way gears 618, and the two one-way gears 618 are fixedly connected to the outer wall of the rotating rod 617.

[0026] The detection range regulating mechanism 6 also includes a baffle 623 fixedly connected to the bottom of the rotating rod 617, the baffle 623 is tilted relative to the rotating rod 617, and a connecting column 628 is vertically fixedly connected to the bottom of the baffle 623. A plurality of through holes are provided on the side of the connecting column 628 close to the baffle 623. A winding column 625 is slidably connected to the outer wall of the connecting column 628. The winding column 625 and the side of the connecting column 628 close to the baffle 623 are jointly penetrated by a locking rod 627. The locking rod 627 is detachably connected to the winding column 625 and the connecting column 628. A pulling rope 64 is fixedly connected to the middle of the winding column 625. A hook rod 626 is movably sleeved on the middle part of the pull rope 64, and the side of the hook rod 626 away from the pulling rope 64 is fixedly connected to the U-shaped plate 5. The side of the pulling rope 64 away from the hook rod 626 is slidably connected to a slide plate 63, and a probe rod 65 is fixedly connected at the center of the slide plate 63. Straight long grooves 613 are provided on both sides of the probe rod 65. The outer wall of the probe rod 65 is slidably sleeved with a limiting sleeve 612, and both sides of the limiting sleeve 612 are fixedly connected with swing rods 611. The two swing rods 611 are rotatably connected to a movable rod 69 on the side away from each other, and the tops of the two movable rods 69 are rotatably connected to the inner wall of the slider 67.

[0027] The detection range control mechanism 6 also includes a first support plate 61, which is fixedly connected to the side of the top of the workbench 1 away from the high-intensity lamp 4, and a guide rod 624 is fixedly connected to the side of the first support plate 61 close to the probe rod 65. A first spring 62 is sleeved on the side of the guide rod 624 away from the probe rod 65, one end of the first spring 62 is fixedly connected to the outer wall of the first support plate 61, and the other end of the first spring 62 is slidably connected to the inner wall of the slide plate 63. The outer wall of the side of the probe rod 65 away from the first support plate 61 is slidably connected to the second support plate 610, and the bottom of the second support plate 610 is fixedly connected to the workbench 1.

[0028] Both sides of the limiting sleeve 612 are fixedly connected with protrusions, and the limiting sleeve 612 is slidably connected in the straight long groove 613 through the protrusions; The probe rod 65 is movably sleeved on the outer wall of the guide rod 624, and the guide rod 624 extends from one side away from the first support plate 61 to the position of the second support plate 610; The tooth grooves of the two one-way gears 618 are in the same direction, and the two telescopic wedge blocks 619 are provided with a bevel angle matching the one-way gear 618 on one side thereof.

[0029] Among them: when observed from top to bottom, the two one-way gears 618 can only rotate clockwise.

[0030] The effects achieved by this embodiment are as follows: In the prior art, for the detection of the inner cavity of complex hydraulic castings, the probes usually used are usually limited in movement range and distance to prevent collision damage, and some tiny pore defects may be missed, which is not comprehensive and accurate enough. In addition, the support rod connecting the probe is also set to be thinner, which is easy to bend and damaged when detecting corners. The detection efficiency is low and cannot meet the needs of large-scale production. Compared with the prior art, through the implementation of this embodiment, the detection range control mechanism 6 is set to utilize the reverse movement of the movable rod 69 and the swing rod 611, and cooperate with the rotation of the two-way threaded rod 68 to reciprocate the probe rod 65, so that the industrial camera 71 for detection can move back and forth therewith, and perform lateral reciprocating scanning detection on the inner cavity of the casting to evenly cover the lateral distance. The detection device is fixed to the probe rod 65 to ensure its stability, and the amplitude of the reciprocating scanning can be changed at any time according to the range of the casting to be detected to adapt to the complexity of the casting.

[0031] Further examples: Please refer to Figure 1 , Fig.11 As shown, the pore marking mechanism 7 includes an industrial camera 71, a pair of industrial cameras 71 are provided, and the pair of industrial cameras 71 are fixedly connected to the side of the probe rod 65 away from the first support plate 61, a battery 73 is fixedly connected to one side of the outer wall of the industrial camera 71, and a small electric push rod 74 is fixedly connected to the other side of the outer wall of the industrial camera 71, and a sponge head 75 is fixedly connected to the output end of the small electric push rod 74, and a protective frame 72 is also fixedly connected to the end of the probe rod 65 close to the industrial camera 71; The battery 73, the industrial camera 71 and the small electric push rod 74 are electrically connected to each other; A pair of industrial cameras 71 are arranged perpendicular to each other, one industrial camera 71 is arranged upward, and the other industrial camera 71 is arranged in a direction away from the probe rod 65.

[0032] Among them: the maximum diameter of the protective frame 72 is consistent with the diameter of the probe rod 65, the detection device is located in the internal space of the protective frame 72 as a whole, and the sponge head 75 and the small electric push rod 74 are tilted relative to the industrial camera 71.

[0033] The effects achieved by this embodiment are as follows: In the prior art, the castings themselves are usually not accurately marked. In the case of a small amount of pores, these castings can continue to be used by welding repair, but the lack of accurate marking makes it difficult to accurately locate the subsequent repair work, which not only increases the difficulty and time cost of the repair, but may also affect the repair effect due to inaccurate positioning, thereby increasing costs. Compared with the prior art, through the implementation of this embodiment, the pore marking mechanism 7 is set up so that the inclined sponge head 75 can be used to more accurately cover the pore defects and the surrounding areas, and has a certain fault tolerance, ensuring that the marking position is accurate. After the pore marking is completed, the accurate marking helps engineers to quickly locate the pore defects, thereby more efficiently performing the repair work.

[0034] The working principle of the above embodiment is as follows: Initial state: the first spring 62 is in a naturally relaxed state, and the probe rod 65 is close to the first support plate 61 .

[0035] When in use, the hydraulic casting is first clamped by the clamp assembly 2, and when clamping, the opening of the casting is facing the probe rod 65, and the part to be detected is kept parallel to the probe rod 65. Then, the strong light fixture 4 is turned on, so that the surface of the casting to be detected faces the strong light fixture 4. According to the size of the part to be detected of the specific casting, the time for the servo motor 66 to change direction is pre-set, so that after the staff starts the servo motor 66, the two-way threaded rod 68 can be driven to rotate forward and reversely, so that the sliders 67 on both sides of the two-way threaded rod 68 can reciprocate to move closer to and away from each other. When the sliders 67 are close to each other, the movable rod 69 on one side is pressed down, and the movable rod 69 on the other side is moved up, so that the swing rods 61 on both sides are 1 is also driven to move synchronously, thereby causing the limit sleeve 612 fixed in the middle to turn. When the sliders 67 move away from each other, the swing rods 611 on both sides swing in the opposite direction, and finally drive the limit sleeve 612 to rotate in the opposite direction. Since the limit sleeve 612 is fixedly connected with protrusions on both sides, and the limit sleeve 612 is slidably connected to the straight long groove 613 through the protrusions, the probe rod 65 can be synchronously reciprocated when the limit sleeve 612 reciprocates, so that the industrial camera 71 located at the end of the probe rod 65 can move reciprocatingly therewith, and the inner cavity of the casting is scanned and detected horizontally and reciprocally, and the lateral distance is evenly covered. The amplitude of the reciprocating scan can be changed at any time according to the range of the casting to be detected to adapt to the complexity of the casting.

[0036] Furthermore, when the bidirectional threaded rod 68 rotates back and forth, it can also synchronously drive the bottom upper bevel gear 616 to rotate forward and reverse accordingly. Observing from top to bottom, when the upper bevel gear 616 rotates clockwise, it can synchronously drive the top telescopic wedge 619 to move. At this time, the telescopic wedge 619 is clamped in the tooth groove of the top one-way gear 618 under the pressure of the second spring 614. Therefore, the one-way gear 618 rotates clockwise at the same time under the abutment of the telescopic wedge 619, and then the top one-way gear 618 drives the rotating rod 617 to rotate clockwise as a whole. In addition, when the upper bevel gear 616 rotates clockwise, the middle bevel gear 621 also rotates clockwise under the meshing of the upper bevel gear 616, and then the limit sleeve 612 drives the lower bevel gear 622 to rotate counterclockwise. The needle rotates, at this time, the bottom telescopic wedge block 619 slides counterclockwise on the outer wall of the bottom one-way gear 618 under the elastic force of the second spring 614, and is not engaged with it, and the lower bevel gear 622 is rotatably connected to the outer wall of the rotating rod 617, so the lower bevel gear 622 will not hinder the clockwise rotation of the rotating rod 617 at this time. Secondly, when the upper bevel gear 616 rotates counterclockwise, similarly to the above, the top telescopic wedge block 619 slides counterclockwise on the outer wall of the top one-way gear 618 at this time, and is not engaged with it, while the middle bevel gear 621 is driven by the upper bevel gear 616 to rotate counterclockwise, and the middle bevel gear 621 causes the lower bevel gear 622 to rotate clockwise. Similar to the above, the bottom telescopic wedge block 619 is now engaged with the bottom one-way gear 618 The one-way gear 618 at the bottom drives the rotating rod 617 to rotate clockwise on the inner wall of the upper bevel gear 616 as a whole, so that no matter whether the two-way threaded rod 68 rotates forward or reversely, the rotating rod 617 can rotate at a uniform speed in one direction, thereby driving the baffle plate 623 and the winding column 625 arranged obliquely at the bottom to rotate together, and cooperating with the bent hook rod 626 to limit the pulling rope 64 at a fixed point to prevent the pulling rope 64 from moving away from the end of the winding column 625 to follow the probe rod 65. The baffle plate 623 prevents the pulling rope 64 from deviating, and the winding column 625 is used to continuously wind and reel in the pulling rope 64. Then, when the pulling rope 64 continuously shortens the distance, the probe rod 65 can be pulled toward the direction of the casting at a uniform speed. At this time, the first spring 62 is in a stretched state, and the probe rod 65 is pulled in a straight line. The rod 65 drives the industrial camera 71 to move deep into the inner cavity of the casting. With the reciprocating rotation of the probe rod 65, the industrial camera 71 moves forward in a wave trajectory. It can not only perform horizontal reciprocating scanning and detection, but also penetrate into the inner cavity of the casting vertically, thereby achieving coverage detection of the entire range to be detected, thereby improving the accuracy of the detection. When one surface is detected, the staff can pull out the locking rod 627, and the winding column 625 loses its limit and slides downward along the inclined surface of the connecting column 628. At this time, the winding column 625 loses its limit and can be rotated arbitrarily. The pulling force of the first spring 62 pulls the probe rod 65 and the pulling rope 64 toward the first support plate 61, and the pulling rope 64 drives the winding column 625 to rotate in the opposite direction, releasing the wound pulling rope 64 for the next winding.After the pulling rope 64 is released, the staff pushes the winding post 625 upward, inserts the locking rod 627 into the locking hole of the winding post 625, rotates the winding post 625 to find the through hole on the connecting post 628, and then passes the locking rod 627 through the other side of the winding post 625 along the through hole, and locks and resets the winding post 625 and the connecting post 628 for the next use. Then, by changing the clamping direction of the casting and changing the detection position, repeating the above operation, it can adapt to the comprehensive detection of the pores in the inner cavity of complex castings.

[0037] Please refer to the above working process Figures 1 to 10 .

[0038] Furthermore, by setting the maximum diameter of the protective frame 72 to be consistent with the diameter of the probe rod 65, and the detection device being located as a whole in the internal space of the protective frame 72, the detection device can be completely protected to prevent collision, and the protective frame 72 can pass through any position where the probe rod 65 can pass, thereby preventing the complex structure of the casting cavity from hindering the withdrawal of the detection device when the probe rod 65 is reset. In addition, since a pair of industrial cameras 71 are arranged perpendicular to each other, and one industrial camera 71 is arranged upward and the other industrial camera 71 is arranged in a direction away from the probe rod 65, the industrial camera 71 arranged upward can ensure that the industrial camera 71 is accurately driven to evenly scan the casting cavity when the probe rod 65 reciprocates, so as to To check for pore defects, the industrial camera 71 set in a direction away from the probe rod 65 can determine the detection depth so as to increase the detection range as much as possible. When the upward industrial camera 71 detects the existence of pores, it transmits a signal to start the small electric push rod 74, and the small electric push rod 74 pushes the sponge head 75 covered with marking liquid to stick to the inner surface of the casting. The sponge head 75 covers the area around the pores and has a certain fault tolerance. After the pore marking is completed, it is convenient to repair the pores later. If the number of marks exceeds a certain number, there is no need to continue the inspection, and the damage is reported directly, and the melt is recast. The battery 73 can provide real-time power to the industrial camera 71 and the small electric push rod 74 to ensure their stable operation.

[0039] Please refer to the above working process Figure 1 , Fig.11 .

[0040] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die casting porosity detection device, comprising a workbench (1), characterized in that: The inner wall of the edge of the workbench (1) is fixedly connected to a clamp assembly (2), a mounting frame (3) is fixedly connected to the top of the workbench (1) on one side close to the clamp assembly (2), a strong light fixture (4) is fixedly connected to the middle of the mounting frame (3), and a U-shaped plate (5) is fixedly connected to the middle of the workbench (1), and further comprises: A detection range control mechanism (6) is used to arbitrarily adjust the scanning range of the device when detecting porosity defects of complex hydraulic castings; The pore marking mechanism (7) is used to mark the pores in real time when the pores are detected.

2. The die casting pore detection device according to claim 1, characterized in that: The detection range control mechanism (6) comprises a servo motor (66) fixedly connected to the top of the U-shaped plate (5); the output end of the servo motor (66) is fixedly connected to a bidirectional threaded rod (68); the outer wall of the bidirectional threaded rod (68) is threadedly connected to a pair of sliders (67); the outer walls of the pair of sliders (67) are both slidably connected to the U-shaped plate (5); a third support plate (615) is rotatably penetrated through the bottom of the bidirectional threaded rod (68); the outer wall of the third support plate (615) is fixedly connected to the outer wall of the U-shaped plate (5); an end of the bidirectional threaded rod (68) away from the servo motor (66) is fixedly connected to an upper bevel gear (616); a side of the upper bevel gear (616) away from the bidirectional threaded rod (68) is rotatably connected to a rotating rod (617); the middle part of the rotating rod (617) is rotatably connected to a lower bevel gear (622); The upper bevel gear (616) and the lower bevel gear (622) are meshedly connected with a middle bevel gear (621); the center of the middle bevel gear (621) is rotatably connected to the U-shaped plate (5); edges of the upper bevel gear (616) and the lower bevel gear (622) on one side close to each other are fixedly connected to a slot box (620); the inner walls of the two slot boxes (620) are slidably connected to telescopic wedge blocks (619); the sides of the two telescopic wedge blocks (619) away from the rotating rod (617) are fixedly connected to a second spring (614); the sides of the two second springs (614) away from the telescopic wedge blocks (619) are fixedly connected to the inner wall of the slot box (620); the outer walls of the telescopic wedge blocks (619) are slidably connected to a one-way gear (618); and the two one-way gears (618) are fixedly connected to the outer wall of the rotating rod (617).

3. The die casting pore detection device according to claim 2, characterized in that: The detection range control mechanism (6) further comprises a baffle (623) fixedly connected to the bottom of the rotating rod (617), the baffle (623) being tilted relative to the rotating rod (617), the bottom of the baffle (623) being vertically fixedly connected to a connecting column (628), a side of the connecting column (628) close to the baffle (623) being provided with a plurality of through holes, an outer wall of the connecting column (628) being slidably connected to a winding column (625), a locking rod (627) being passed through the winding column (625) and the connecting column (628) on a side close to the baffle (623), the locking rod (627) being detachably connected to the winding column (625) and the connecting column (628), a pulling rope (64) being fixedly connected to the middle of the winding column (625), the A hook rod (626) is movably sleeved at the middle of the pulling rope (64); the side of the hook rod (626) away from the pulling rope (64) is fixedly connected to the U-shaped plate (5); the side of the pulling rope (64) away from the hook rod (626) is slidably connected to a slide plate (63); a probe rod (65) is fixedly connected at the center of the slide plate (63); straight long grooves (613) are provided on both sides of the probe rod (65); a limit sleeve (612) is slidably sleeved on the outer wall of the probe rod (65); both sides of the limit sleeve (612) are fixedly connected to swing rods (611); the two swing rods (611) are rotatably connected to movable rods (69) at the sides away from each other; the tops of the two movable rods (69) are rotatably connected to the inner wall of the slider (67).

4. The die casting pore detection device according to claim 3, characterized in that: The detection range regulating mechanism (6) further comprises a first support plate (61), the first support plate (61) being fixedly connected to a side of the top of the workbench (1) away from the strong light fixture (4), a side of the first support plate (61) close to the probe rod (65) being fixedly connected to a guide rod (624), a side of the guide rod (624) away from the probe rod (65) being sleeved with a first spring (62), one end of the first spring (62) being fixedly connected to an outer wall of the first support plate (61), the other end of the first spring (62) being slidably connected to an inner wall of a chute plate (63), a side of the probe rod (65) away from the first support plate (61) being slidably connected to a second support plate (610), the bottom of the second support plate (610) being fixedly connected to the workbench (1).

5. The die casting pore detection device according to claim 3, characterized in that: The pore marking mechanism (7) comprises an industrial camera (71), wherein a pair of the industrial cameras (71) are provided, and the pair of the industrial cameras (71) are both fixedly connected to a side of the probe rod (65) away from the first support plate (61), a battery (73) is fixedly connected to one side of the outer wall of the industrial camera (71), a small electric push rod (74) is fixedly connected to the other side of the outer wall of the industrial camera (71), a sponge head (75) is fixedly connected to the output end of the small electric push rod (74), and a protective frame (72) is also fixedly connected to one end of the probe rod (65) close to the industrial camera (71).

6. The die casting pore detection device according to claim 5, characterized in that: The battery (73), the industrial camera (71) and the small electric push rod (74) are electrically connected to each other.

7. The die casting porosity detection device according to claim 5, characterized in that: The pair of industrial cameras (71) are arranged perpendicular to each other, one of the industrial cameras (71) is arranged upward, and the other of the industrial cameras (71) is arranged in a direction away from the probe rod (65).

8. The die casting porosity detection device according to claim 3, characterized in that: Both sides of the limiting sleeve (612) are fixedly connected with protrusions, and the limiting sleeve (612) is slidably connected in the straight long groove (613) via the protrusions.

9. The die casting porosity detection device according to claim 4, characterized in that: The probe rod (65) is movably sleeved on the outer wall of the guide rod (624), and the guide rod (624) extends from a side away from the first support plate (61) to the position of the second support plate (610).

10. The die casting porosity detection device according to claim 2, characterized in that: The tooth groove directions of the two one-way gears (618) are consistent, and the two telescopic wedge blocks (619) are both provided with an oblique angle matching the one-way gear (618) on one side close to the one-way gear (618).

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