Trauma detection device for O-shaped sealing ring production

Abstract

The invention discloses a trauma detection device for O-shaped sealing ring production, which comprises a base, a fixing device for opening and fixing a sealing ring is slidably connected to the base, an activating piece for driving the sealing ring fixed by the fixing device to rotate is arranged on the base, one end of the base is fixedly connected with a mounting plate, and the other end of the base is fixedly connected with a clamping device. A detection device for detecting the surface of the sealing ring is arranged on the mounting plate, and a linkage device for driving the detection device to rotate when the sealing ring rotates is arranged on the base; according to the invention, spiral path scanning is carried out on the outer surface of the sealing ring through multiple groups of stroke pieces in the detection device, so that the surface of the sealing ring can be fully covered, detection dead angles are avoided, the detection precision is greatly improved, and small trauma on the surface of the sealing ring can be found more accurately; the pressure sensitive film arranged on the inner wall of the display ring enables the detection result to be visualized, a worker can directly observe the color change of the film to judge whether the sealing ring is injured or not, and the visual detection result presentation mode is convenient and fast.

Description

Technical Field

[0001] The invention relates to the technical field of sealing ring detection equipment, in particular to a damage detection device for producing O-type sealing rings. Background Art

[0002] O-ring is a sealing element widely used in mechanical design. Its name comes from the shape of its cross section, which is usually a completely closed ring, i.e. "O" shape. This design enables the O-ring to provide effective sealing, resist external fluid pressure and pollutants, and prevent leakage. The O-ring production damage detection device is a highly efficient tool specially designed to detect surface defects of O-rings. These defects may include cracks, scratches, dents, bubbles, impurities, etc. If these damages are not detected and handled in time, they may cause the seal to fail during use, affecting the normal operation and safety of the equipment.

[0003] The Chinese patent with the publication number CN116165217A discloses an automobile O-ring damage detection device, the structure of which includes a workbench and a detection unit, a protective shell is fixedly provided on one side of the lower end of the workbench, a detection platform is rotatably provided on one side of the upper end of the workbench, and first limit slides are provided on all four sides of the interior of the detection platform, and four of the first limit slides are fixedly provided with multi-section electric telescopic rods, and the output ends of the multi-section electric telescopic rods are fixedly connected to support rods, and the outer side walls of the upper ends of the four support rods are fixedly provided with clamping plates, and a sealing member is provided on the upper end of the detection platform and on the outer side of the clamping plate, and a sliding seat is fixedly provided on the side of the upper end of the workbench away from the detection platform. Through the use of the detection unit, the clamping plate and the pressure plate, the device can locate automobile seals of different sizes, and the detection method is simple and fast, with a high degree of intelligence, and it can also be subjected to pressure resistance testing.

[0004] However, the above-mentioned prior art has the following deficiencies: during the inspection process of the O-ring, the clamping plate ensures the stability of the sealing ring in the inspection equipment. However, due to the physical position and shape of the clamping plate, the inner surface of the O-ring will inevitably be blocked. This will cause obvious blind spots in the inspection process, making it impossible to fully detect some areas inside the sealing ring, which may lead to defects in these areas not being discovered, potentially affecting the performance and life of the sealing ring, and further causing equipment leakage or other safety problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that during the inspection process of the O-ring, the clamping plate ensures the stability of the sealing ring in the inspection equipment. However, due to the physical position and shape of the clamping plate, the inner surface of the O-ring will inevitably be blocked. This will lead to obvious blind spots in the inspection process, making it impossible to fully detect some areas inside the sealing ring, which may lead to defects in these areas not being discovered, resulting in potential impact on the performance and life of the sealing ring, and further causing equipment leakage or other safety problems. A trauma detection device for the production of O-rings is provided.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting external damage for producing O-rings, comprising: a base, a fixing device for stretching and fixing the sealing ring is slidably connected to the base, an activating member for driving the sealing ring fixed by the fixing device to rotate is arranged on the base, a mounting plate is fixedly connected to one end of the base, a detection device for detecting the surface of the sealing ring is arranged on the mounting plate, a linkage device for driving the detection device to rotate when the sealing ring rotates is arranged on the base, and a collection box for collecting defective sealing rings is arranged on the base;

[0007] The detection device comprises a fixed rod fixedly connected to the linkage device, one end of the fixed rod is fixedly connected to a threaded rod, a mounting frame is fixedly connected to the mounting plate, a side end of the mounting frame is rotatably connected to a gear 1, the fixed rod passes through the mounting frame and the gear 1, and is threadedly connected to the gear 1, a connecting plate is fixedly connected to the mounting plate, a side end of the connecting plate is rotatably connected to a detection piece 1, and a side end of the detection piece is plugged with a detection piece 2;

[0008] The detection member 1 includes an insert ring rotatably connected to the connecting plate, a display ring is inserted on the outer side of the insert ring, a through hole is opened on the insert ring, a tracing member with one end abutting against the surface of the sealing ring and the other end abutting against the inner wall of the display ring is inserted in the through hole, and a gear 2 is fixedly connected to the outer side of the insert ring, and the gear 2 is meshed with the gear 1;

[0009] Among them, when the activation part drives the sealing ring on the fixing device to rotate, it drives the linkage device to move synchronously, so that the threaded rod connected to the linkage device follows its movement, thereby rotating gear one, and under the action of meshing, drives gear two to rotate, so that the plug ring rotates on the connecting plate. When the plug ring rotates, it drives the tracing piece to rotate, so that the tracing piece produces a spiral motion trajectory on the outer surface of the sealing ring. When external damage occurs on the surface of the sealing ring, the tracing piece will fluctuate accordingly, thereby producing corresponding scratches on the inner wall of the display ring.

[0010] As a further solution of the present invention: the activating member includes a motor fixedly connected to the base, the output end of the motor passes through the base and is fixedly connected to sprocket one, the base is rotatably connected to a mounting shaft, the outer side of the mounting shaft is fixedly connected to sprocket two, the side end of sprocket two is meshedly connected to a chain, and the chain is meshedly connected to sprocket one.

[0011] As a further solution of the present invention: the second detection member also includes an insert ring, a display ring, a through hole, a tracing member and a second gear.

[0012] As a further solution of the present invention: a plug hole is provided at a side end of the plug ring in the first detection member, and a plug column is fixedly connected to the side end of the plug ring in the second detection member, and the plug column is plugged into the plug hole.

[0013] As a further solution of the present invention: the tracing member includes a connecting rod passing through the through hole, the bottom end of the connecting rod is fixedly connected to a scraper block, the bottom end of the scraper block abuts against a sealing ring, the top end of the connecting rod is fixedly connected to a limiting plate, the limiting plate is arranged inside the display ring, the top end of the limiting plate is fixedly connected to a marking needle, the top end of the marking needle abuts against the top end inside the display ring, a spring is sleeved on the outside of the connecting rod, one end of the spring is fixedly connected to the top end of the scraper block, and the other end of the spring is fixedly connected to the inner side of the plug ring.

[0014] As a further solution of the present invention: the fixing device includes a limit rod plugged into the base, a stud is connected through the limit rod, and the stud is threadedly connected to the limit rod, one end of the stud abuts against one end of the base, one end of the limit rod abuts against the other end of the base, and a baffle is fixedly connected to the side end of the limit rod.

[0015] As a further solution of the present invention: the fixing device also includes a moving block slidingly connected to the base, the moving block is sleeved with a mounting cylinder, the outer side of the mounting cylinder is rotatably connected with a sealing ring, the top of the moving block is inserted with a push rod, the top of the push rod is fixedly connected to a limiting disk, the outer side of the push rod is sleeved with a spring 2, one end of the spring 2 is fixedly connected to the top of the moving block, the other end of the spring 2 is fixedly connected to the bottom of the limiting disk, the side end of the limiting disk is fixedly connected with a pressure plate, the top of the limiting disk is fixedly connected with a push block, and the push block is inserted into the chain.

[0016] As a further solution of the present invention: the linkage device includes a fixed frame slidably connected to the base, and clamping claw 1 and clamping claw 2 are fixedly connected to the fixed frame, and clamping claw 1 and clamping claw 2 are symmetrically distributed on one side of the fixed frame, and a push rod is inserted through the side end of the mounting plate.

[0017] As a further scheme of the present invention: the clamping claw 2 includes a fixed plate fixedly connected to the fixed frame, a fixed ring is rotatably connected to one side of the fixed plate, and gear 3 is rotatably connected to the other side of the fixed plate, the fixed ring and gear 3 are symmetrically distributed on both sides of the fixed plate, a rotating column is meshingly connected inside the fixed ring, the rotating column passes through the fixed ring and gear 3, and is meshingly connected to gear 3, a gear 4 is rotatably connected to one side of the fixed plate, the gear 4 is meshingly connected to gear 3, one end of the gear 4 passes through the fixed plate and is fixedly connected to a worm, the side end of the worm is meshingly connected to a worm wheel, the side end of the worm wheel is fixedly connected to a clamping rod, and the worm wheel is rotatably connected to the fixed plate.

[0018] As a further solution of the present invention: the clamping claw one also includes a fixed plate, a fixed ring, a gear three, a rotating column, a gear four, a worm, a worm wheel and a clamping rod, and one end of the push rod is at the same height as the rotating column in the clamping claw two.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, the position of the limit rod in the second movable groove can be adjusted by rotating the stud through the combined design of the limit rod and the stud in the fixing device, so that the spacing between the mounting cylinder on the moving block and the mounting cylinder on the mounting shaft can be changed to adapt to O-rings of different sizes. By matching the spacing of the mounting cylinders with the size of the sealing ring, the sealing ring is ensured to be in a suitable position after being fixed, avoiding the subsequent detection being affected by unstable fixing or position deviation. Suitable fixing can keep the sealing ring stable during the rotation process, providing a good basis for the detection device to accurately detect the surface of the sealing ring, and helping to improve the detection accuracy.

[0021] 2. In the present invention, the linkage device can transmit the rotational motion of the sealing ring to the detection device during the rotation of the sealing ring, and convert the rotational motion of the sealing ring into the reciprocating motion of the fixed rod, thereby driving the detection device to perform precise detection actions. By connecting with the clamping claw and the fixed rod, the linkage device can accurately control the action of the detection device, and drive the gear in the detection device to rotate forward or reverse during the rotation of the sealing ring, thereby improving the accuracy and reliability of the detection;

[0022] 3. In the present invention, the outer surface of the sealing ring is scanned in a spiral path through multiple groups of tracing parts in the detection device, which can fully cover the surface of the sealing ring, avoid detection blind spots, greatly improve the detection accuracy, and more accurately detect minor external injuries on the surface of the sealing ring. The pressure-sensitive film provided on the inner wall of the display ring makes the detection results visual, and the staff can directly observe the color change of the film to determine whether the sealing ring has external injuries. This intuitive way of presenting the detection results is convenient and quick, and the film is reusable, which reduces the detection cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a damage detection device for producing an O-ring according to the present invention;

[0024] Figure 2 It is a schematic structural diagram of a chain in a damage detection device for producing an O-ring according to the present invention;

[0025] Figure 3 It is a structural schematic diagram of a fixing device in a damage detection device for producing an O-ring according to the present invention;

[0026] Figure 4 It is a bottom view of the structure of a fixing device in a damage detection device for producing an O-ring according to the present invention;

[0027] Figure 5 It is a structural schematic diagram of a linkage device in a damage detection device for O-ring production according to the present invention;

[0028] Figure 6 It is a structural schematic diagram of a gear four in a damage detection device for producing an O-ring according to the present invention;

[0029] Figure 7 It is a structural schematic diagram of a gear 1 in a device for detecting damage for producing an O-ring according to the present invention;

[0030] Figure 8 It is a structural schematic diagram of a detection component 1 in a damage detection device for producing an O-ring according to the present invention;

[0031] Fig. 9 The invention relates to a device for detecting external damage in the production of an O-ring. Figure 8 A schematic diagram of the structure at A;

[0032] Fig.10 The present invention is a schematic diagram of the structure of a plug-in column in a damage detection device for producing an O-ring.

[0033] In the figure: 1, base; 2, motor; 3, sprocket wheel 1; 4, mounting shaft; 5, sprocket wheel 2; 6, chain; 7, fixing device; 71, limit rod; 72, stud; 73, baffle; 74, moving block; 75, mounting cylinder; 76, push rod; 77, spring 2; 78, limit plate; 79, pressure plate; 710, push block; 8, linkage device; 81, fixing frame; 82, clamping claw 1; 83, clamping claw 2; 831, fixing plate; 832, fixing ring; 833, gear 3; 834, rotating column; 835, gear 4; 836, worm; 837, worm Wheel; 838, clamping rod; 84, push rod; 9, detection device; 91, fixing rod; 92, threaded rod; 93, mounting frame; 94, gear one; 95, connecting plate; 96, detection piece one; 961, plug ring; 962, display ring; 963, through hole; 964, tracing piece; 9641, connecting rod; 9642, scraper block; 9643, spring one; 9644, limit plate; 9645, marking needle; 965, gear two; 966, socket; 97, detection piece two; 971, plug column; 10, mounting plate; 11, collection box; 12, activation piece. DETAILED DESCRIPTION

[0034] 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.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0036] Reference Figures 1 to 10 In an embodiment of the present invention, a device for detecting external damage for producing an O-type sealing ring comprises: a T-shaped base 1, wherein the T-shaped base 1 is provided with a moving groove 1, a moving groove 2 and a moving groove 3, and the moving groove 3 is provided with two groups, which are symmetrically distributed on both sides of the moving groove 1, and the moving groove 2 is provided on one side of the uppermost group of the moving groove 3, and a fixing device 7 for stretching and fixing the sealing ring is slidably connected to the base 1, so that the sealing ring is stretched in an O shape, and an activating member 12 for driving the sealing ring fixed by the fixing device 7 to rotate is provided on the base 1, a mounting plate 10 is fixedly connected to one end of the base 1, and a detection device 9 for detecting the surface of the sealing ring is provided on the mounting plate 10, and a linkage device 8 for driving the detection device 9 to rotate when the sealing ring rotates is provided on the base 1, and a collection box 11 for collecting defective sealing rings is provided on the base 1;

[0037] The activation member 12 includes a motor 2 fixedly connected to the base 1, the output end of the motor 2 passes through the base 1 and is fixedly connected to a sprocket 1 3, a mounting shaft 4 is rotatably connected to the base 1, a sprocket 2 5 is fixedly connected to the outer side of the mounting shaft 4, a chain 6 is meshedly connected to the side end of the sprocket 2 5, and the chain 6 is meshedly connected to the sprocket 1 3;

[0038] The detection device 9 includes a fixed rod 91 fixedly connected to the linkage device 8, the fixed rod 91 is L-shaped, one end of the fixed rod 91 is fixedly connected to a threaded rod 92, a mounting frame 93 is fixedly connected to the mounting plate 10, a side end of the mounting frame 93 is rotatably connected to a gear 1 94, the fixed rod 91 passes through the mounting frame 93 and the gear 1 94, and is threadedly connected to the gear 1 94, a connecting plate 95 is fixedly connected to the mounting plate 10, a side end of the connecting plate 95 is rotatably connected to a detection piece 1 96, and a side end of the detection piece 1 96 is plugged with a detection piece 2 97;

[0039] The detection member 1 96 includes an insert ring 961 rotatably connected to the connecting plate 95. The insert ring 961 is a two-thirds ring with a one-third gap left thereon. The cross section of the insert ring 961 is T-shaped. A display ring 962 is inserted on the outer side of the insert ring 961. The display ring 962 is also a two-thirds ring with a one-third gap left thereon. The cross section of the display ring 962 is U-shaped. The insert ring 961 is provided with a through hole 963. The through hole 963 is provided with multiple groups, all of which are Evenly distributed on the insert ring 961, a tracing piece 964 is inserted into the through hole 963, one end of which is in contact with the surface of the sealing ring and the other end of which is in contact with the inner wall of the display ring 962. There are multiple groups of tracing pieces 964, and each group of through holes 963 is provided with a group of tracing pieces 964. The outer side of the insert ring 961 is fixedly connected with a gear 2 965. The gear 2 965 is also a two-thirds ring shape with a one-third gap left on it. The gear 2 965 is meshed and connected with the gear 1 94;

[0040] Among them, when the activation member 12 drives the sealing ring on the fixing device 7 to rotate, it drives the linkage device 8 to move synchronously, so that the threaded rod 92 connected to the linkage device 8 follows its movement, thereby rotating the gear 1 94, and under the meshing action, drives the gear 2 965 to rotate, so that the plug ring 961 rotates on the connecting plate 95. When the plug ring 961 rotates, it drives the tracing member 964 to rotate, so that the tracing member 964 produces a spiral motion trajectory on the outer surface of the sealing ring. When external injuries appear on the surface of the sealing ring, the tracing member 964 will fluctuate accordingly, thereby producing corresponding scratches on the inner wall of the display ring 962.

[0041] For this explanation, in the present technical solution, a pressure-sensitive film is provided on the inner wall of the display ring 962. The pressure-sensitive film adopts the existing technology and is a material specially designed for measuring pressure distribution. When subjected to pressure, the film will change color. After the pressure is released, the color will gradually recover.

[0042] Reference Figures 8 to 10, the detection member 2 97 also includes an insert ring 961, a display ring 962, a through hole 963, a tracing member 964 and a gear 2 965. The side end of the insert ring 961 in the detection member 1 96 is provided with a plug hole 966, and the plug hole 966 is provided with multiple groups, which are distributed at the corresponding surfaces of the detection member 1 96 and the detection member 2 97. The side end of the insert ring 961 in the detection member 2 97 is fixedly connected with a plug column 971, and the plug column 971 is provided with multiple groups, which are distributed at the corresponding surfaces of the detection member 2 97 and the detection member 1 96. Each group of plug columns 971 is plugged with a group of plug holes 966. The detection member 2 97 and the detection member 1 96 are symmetrically distributed, so that the detection member 2 97 and the two-thirds of the ring gear 2 965 in the detection member 1 96 form a complete The tracing member 964 includes a connecting rod 9641 that passes through the through hole 963, and a scraper block 9642 is fixedly connected to the bottom end of the connecting rod 9641, and the bottom end of the scraper block 9642 abuts against the sealing ring. The top of the connecting rod 9641 is fixedly connected to a limiting plate 9644, and the limiting plate 9644 is arranged inside the display ring 962. The top of the limiting plate 9644 is fixedly connected to a scratching needle 9645, and the top of the scratching needle 9645 abuts against the top of the display ring 962. A spring 9643 is sleeved on the outside of the connecting rod 9641, and one end of the spring 9643 is fixedly connected to the top of the scraper block 9642, and the other end of the spring 9643 is fixedly connected to the insert ring 96 1 is fixedly connected inside. When the motor 2 is started, the installation shaft 4 is rotated through the transmission of the sprocket 1 3, the chain 6 and the sprocket 2 5, and then the sealing ring is driven to rotate. During the rotation of the sealing ring, the clamping claw 2 83 and the clamping claw 1 82 are driven to move, so that the rotating column 834 in the clamping claw 2 83 and the clamping claw 1 82 abuts against different components, and the opening and closing state of the clamping claw is changed, so that the clamping claw 2 83 and the clamping claw 1 82 continuously reciprocate. This reciprocating motion drives the threaded rod 92 to reciprocate. Since the fixed rod 91 is threadedly connected with the gear 1 94, the gear 1 94 will rotate forward or reverse. The rotation of the gear 1 94 drives the gear 2 965 to rotate through the meshing action, and then drives the insert ring 96 1. The display ring 962 and the tracing piece 964 rotate. Since the sealing ring also moves while rotating, the path drawn by the tracing piece 964 that abuts against the sealing ring is spiral. When there is external damage on the surface of the sealing ring, the scraper block 9642 will vibrate accordingly. Due to the existence of the spring 1 9643, the vibration of the scraper block 9642 will be transmitted to the scratching needle 9645 at the top of the connecting rod 9641. The scratching needle 9645 produces corresponding scratches on the pressure-sensitive film on the inner wall of the display ring 962. When the scratching needle 9645 scratches and generates pressure, the film will change color. After the pressure is released, the color gradually recovers. By observing the color change on the pressure-sensitive film, it can be determined whether there is external damage on the outer surface of the sealing ring.

[0043] The above scheme is adopted: the outer surface of the sealing ring is scanned in a spiral path through multiple groups of tracing parts 964, which can fully cover the surface of the sealing ring. Compared with the traditional detection method, this spiral scanning method can detect every part of the sealing ring more carefully, avoid detection blind spots, greatly improve the detection accuracy, and can more accurately detect minor external injuries on the surface of the sealing ring. The pressure-sensitive film on the inner wall of the display ring 962 makes the detection results visualized. This intuitive detection result presentation method is convenient and fast, and the color of the pressure-sensitive film can gradually recover after the pressure is released, which means that the detection device 9 can be used repeatedly without frequent replacement of detection components, thereby reducing the detection cost. The detection component 1 96 and the detection component 2 97 are combined in a plug-in manner of a plug-in column 971 and a plug-in hole 966. This structural design facilitates the installation of the sealing ring and the detection component itself. When the detection component needs to be maintained or replaced, the detection component 1 96 and the detection component 2 97 can also be easily separated for separate maintenance or replacement operations, thereby improving the maintainability of the entire detection device 9.

[0044] Reference Figure 3 to Figure 4The fixing device 7 includes a limiting rod 71 that is plugged into the second moving groove in the base 1. A stud 72 is connected to the limiting rod 71, and the stud 72 is threadedly connected to the limiting rod 71. One end of the stud 72 abuts against one end of the base 1, and one end of the limiting rod 71 abuts against the other end of the base 1. When the stud 72 is rotated, the abutment between the limiting rod 71 and the stud 72 and the base 1 increases, thereby limiting the current position of the limiting rod 71 in the moving groove 2 in the base 1. A baffle 73 is fixedly connected to the side end of the limiting rod 71. The baffle 73 is composed of a group of L-shaped straight plates and a group of cylinders. The end surface of the L-shaped straight plate is fixedly connected to the cylinder. The fixing device 7 also includes a moving block 74 that is slidably connected to the moving groove 1 in the base 1. A mounting cylinder 75 is sleeved on the moving block 74. The mounting cylinder 75 Two groups are provided, one group is rotatably connected to the moving block 74, and the other group is fixedly connected to the installation shaft 4. The outer sides of the two groups of installation cylinders 75 are rotatably connected with sealing rings. A push rod 76 is inserted through the top of the moving block 74. The top of the push rod 76 is fixedly connected to a limiting disk 78. Two groups of limiting disks 78 are provided, which are symmetrically distributed at the upper and lower ends of the push rod 76. A spring 2 77 is sleeved on the outer side of the push rod 76. One end of the spring 2 77 is fixedly connected to the top of the moving block 74, and the other end of the spring 2 77 is fixedly connected to the bottom of the limiting disk 78. A pressure plate 79 is fixedly connected to the side end of the limiting disk 78. The pressure plate 79 is inclined, and the bottom end of the pressure plate 79 is lower than the bottom end of the cylinder in the baffle 73. A push block 710 is fixedly connected to the top of the limiting disk 78. The top two sides of the push block 710 are arc surfaces. When the locking cam 71 is in the unlocked position, the locking cam 71 is in the unlocked position, and the locking cam 71 is in the unlocked position, so that the locking cam 71 is in the unlocked position. When the pressure plate 79 abuts against the baffle plate 73 and is fully pressed down, the pressure plate 79 abuts against the inner wall of the baffle plate 73, and the push block 710 moves downward, so that the arc surface of the push block 710 is in the gap of the chain 6. Under the abutment of the pressure plate 79 and the baffle plate 73, the installation tube 75 is restricted in the current position, and under the action of the spring 2 77, the push block 710 can be reinserted into the chain 6 to prevent the sealing ring from pulling the installation tube 75, so that the sealing ring remains in a taut state, thereby completing the expansion and fixation of the sealing ring, making it O-shaped, and providing a stable state for subsequent detection.

[0045] The above scheme is adopted: by adjusting the position of the limit rod 71 and the stud 72, the spacing between the two groups of mounting tubes 75 can be changed, so that the fixing device 7 can adapt to O-rings of different sizes. In the production process, there may be sealing rings of various specifications that need to be tested. This flexible size adaptation function can improve the versatility of the device and reduce the trouble of replacing the fixing device 7 due to changes in the size of the sealing ring. By utilizing the cooperation of the pressure plate 79 and the baffle plate 73 and the action of the spring 2 77, the sealing ring can be stretched into an O shape and kept in a taut state. This stable fixing method is very important because during the detection process, if the sealing ring is not fixed properly, it will shake or change its position, which will affect the scanning of the surface of the sealing ring by the detection component, resulting in inaccurate detection results. The fixing device 7 can effectively avoid this situation and ensure that the detection device 9 can accurately detect whether there is external damage on the surface of the sealing ring.

[0046] Reference Figure 5 to Figure 6The linkage device 8 includes a fixed frame 81 slidably connected to two sets of sliding grooves in the base 1, and a clamping claw 1 82 and a clamping claw 2 83 are fixedly connected to the fixed frame 81, and the clamping claw 1 82 and the clamping claw 2 83 are symmetrically distributed on one side of the fixed frame 81. When the clamping claw 1 82 and the clamping claw 2 83 are working, the opening and closing states are opposite. A push rod 84 is inserted through the side end of the mounting plate 10, and the clamping claw 2 83 includes a fixed plate 831 fixedly connected to the fixed frame 81, and a fixing ring 832 is rotatably connected to one side of the fixed plate 831, and a gear 3 is rotatably connected to the other side of the fixed plate 831. 833, the fixing ring 832 and the gear three 833 are symmetrically distributed on both sides of the fixing plate 831, the fixing ring 832 is meshed with a rotating column 834, the outer side of the rotating column 834 is provided with a spiral rotating guide bar, the rotating column 834 penetrates the fixing ring 832 and the gear three 833, and is meshed with the gear three 833, one side of the fixing plate 831 is rotatably connected with a gear four 835, the gear four 835 is meshed with the gear three 833, the gear four 835 and the gear three 833 are bevel gears, one end of the gear four 835 penetrates the fixing plate 831, and is fixedly connected with a worm 836 The side end of the worm 836 is meshed with a worm wheel 837. There are two groups of worm wheels 837, which are symmetrically distributed on both sides of the worm 836. The side end of each group of worm wheels 837 is fixedly connected with a group of clamping rods 838. The worm wheel 837 is rotatably connected to the fixed plate 831. The clamping claw 82 also includes a fixed plate 831, a fixed ring 832, a gear three 833, a rotating column 834, a gear four 835, a worm 836, a worm wheel 837 and a clamping rod 838. One end of the push rod 84 is at the same height as the rotating column 834 in the clamping claw 83. When the sealing ring is excited through the mounting cylinder 75, When the movable part 12 starts to rotate, it will first drive the clamping claw 2 83 and the clamping claw 1 82 to move toward the mounting plate 10, so that the rotating column 834 in the clamping claw 2 83 and the clamping claw 1 82 will abut against the mounting plate 10, thereby changing the opening and closing state of the clamping claw 2 83 and the clamping claw 1 82. At this time, the clamping claw 1 82 clamps the sealing ring, and the clamping claw 2 83 no longer clamps the sealing ring. Then they follow the moving direction of the sealing ring at the top and move toward the limit rod 71. With the continuous rotation of the sealing ring and the movement of the clamping claw, the threaded rod 92 will be driven to move back and forth. When the clamping claw 2 83 and the clamping claw 1 82 move to the moving block 74, the rotating column 834 in the clamping claw 2 83 and the clamping claw 1 82 abuts against the moving block 74, which will change their opening and closing states. At this time, the clamping claw 2 83 clamps the sealing ring, and the clamping claw 1 82 no longer clamps the sealing ring. They follow the moving direction of the sealing ring below and move toward the mounting plate 10. In this way, the clamping claw 2 83 and the clamping claw 1 82 continuously reciprocate, continuously driving the threaded rod 92 to reciprocate, thereby ensuring that the detection device 9 can continuously detect the sealing ring.

[0047] The above scheme is adopted: through its connection with the clamping claw and the fixing rod 91, the action of the detection device 9 can be accurately controlled. During the rotation of the sealing ring, the gear 1 94 in the detection device 9 is driven to rotate forward or reverse, thereby rotating the gear 2 965, and driving the plug ring 961, the display ring 962 and the tracing piece 964 to rotate. Due to the action of the linkage device 8, the tracing piece 964 abutting against the sealing ring can draw a spiral detection path. This path can comprehensively and carefully detect the outer surface of the sealing ring, thereby improving the accuracy and reliability of the detection.

[0048] The working principle of the present invention is as follows: when in use, first insert the limiting rod 71 into the moving groove 2 of the base 1, and then rotate the stud 72 so that one end of the stud 72 abuts against one end of the base 1, and at the same time, one end of the limiting rod 71 also abuts against the other end of the base 1, and the position of the limiting rod 71 in the moving groove 2 is limited by increasing the abutting force, so as to play a preliminary fixing role, so that the spacing between the mounting cylinder 75 on the moving block 74 and the mounting cylinder 75 on the mounting shaft 4 is adapted to the size of the sealing ring to be detected, and then push the push rod 84 so that the push rod 84 pushes the rotating column 834 in the clamping claw 2 83 in the initial position. When the rotating column 834 is pushed, under the guidance of the spiral guide strip on the surface of the rotating column 834, the fixing ring 832 and the gear 3 833 rotate accordingly, thereby The gear 4 835 meshing with the gear 3 833 is driven to rotate, and the worm 836 is driven to rotate, so that the two groups of worm wheels 837 on both sides of the worm 836 rotate, so that the two groups of clamping rods 838 change from a closed state to an open state, and then the plug post 971 in the socket 966 is pulled out to separate the detection part 1 96 and the detection part 2 97 to expose the gap, and then, the two ends of the sealing ring to be detected are respectively mounted on the two groups of mounting cylinders 75, and the upper and lower ends of the O-ring are respectively located between the two groups of clamping rods 838 of the clamping claw 1 82 and the clamping claw 2 83 in the open state, and then, the sealing ring is placed in the detection part 1 96 through the gap of the detection part 1 96, and then the sealing ring is placed in the detection part 2 97 through the gap of the detection part 2 97, and finally The socket 966 and the plug column 971 connect the detection part 1 96 and the detection part 2 97 so that the gap is blocked, and the rotating column 834 pushed by the push rod 84 is pressed to reset, so that the clamping rod 838 on the clamping claw 2 83 is restored to a closed state, the sealing ring is clamped, and the installation operation is completed. Then the motor 2 is started, and the output end of the motor 2 drives the sprocket 1 3 to rotate. The sprocket 1 3 is meshed and connected with the sprocket 2 5 through the chain 6, and the sprocket 2 5 is fixed on the outside of the installation shaft 4, and the installation shaft 4 is rotatably connected to the base 1. In this way, the movement of the chain 6 drives the installation shaft 4 to rotate, and then drives the sealing ring fixed by the installation cylinder 75 to start rotating through the installation cylinder 75. When the sealing ring rotates, it first drives the clamping claw 2 83 and the clamping claw 1 82 to move toward the installation plate 10. The second and third locking cams 76 are in a state of being moved in a direction opposite to the first locking cam 71, and the second and third locking cams 76 are in a state of being moved in a direction opposite to the first locking cam 71. As a result, the second and third locking cams 76 are in a state of being moved in a direction opposite to the first locking cam 71.When the locking cam 73 is in the unlocked position, the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, so that the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, so that the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam 738 is in a state of being unlocked, and the locking cam The holding claw 1 82 follows the moving direction of the sealing ring below and moves toward the mounting plate 10, so that the clamping claw 2 83 and the clamping claw 1 82 continuously reciprocate. As the clamping claw 2 83 and the clamping claw 1 82 move, the threaded rod 92 moves back and forth, so that the gear 1 94 rotates forward or reversely, thereby rotating the gear 2 965, and driving the insert ring 961, the display ring 962 and the tracing piece 964 to rotate. Since the sealing ring is moving, the path drawn by the tracing piece 964 that abuts against the sealing ring is spiral. When there is external damage on the surface of the sealing ring, the scraping block 9642 vibrates accordingly, thereby driving the scratching needle 9645 to produce corresponding scratches on the pressure-sensitive film on the inner wall of the display ring 962, causing the color of the pressure-sensitive film at the scratch to change. By changing the color on the penetrating pressure sensitive film, it can be judged whether there is any external injury on the outer surface of the sealing ring; through the combined design of the limiting rod 71 and the stud 72 in the fixing device 7, the position of the limiting rod 71 in the movable groove 2 can be adjusted by rotating the stud 72, so that the spacing between the mounting cylinder 75 on the movable block 74 and the mounting cylinder 75 on the mounting shaft 4 can be changed to adapt to O-rings of different sizes. By matching the spacing of the mounting cylinders 75 with the size of the sealing ring, it is ensured that the sealing ring is in a suitable position after fixing, avoiding the subsequent detection being affected by unstable fixing or position deviation. Suitable fixing can keep the sealing ring stable during the rotation process, providing a good foundation for the detection device 9 to accurately detect the surface of the sealing ring, which is helpful to improve the detection The linkage device 8 can transmit the rotational motion of the sealing ring to the detection device 9 during the rotation of the sealing ring, and convert the rotational motion of the sealing ring into the reciprocating motion of the fixed rod 91, thereby driving the detection device 9 to perform precise detection actions. Through the connection with the clamping claw and the fixed rod 91, the linkage device 8 can accurately control the action of the detection device 9. During the rotation of the sealing ring, the gear 94 in the detection device 9 is driven to rotate forward or reverse, thereby improving the accuracy and reliability of the detection. The outer surface of the sealing ring is scanned in a spiral path by multiple groups of tracing members 964 in the detection device 9, which can fully cover the surface of the sealing ring, avoid detection blind spots, greatly improve the accuracy of the detection, and more accurately detect minor external injuries on the surface of the sealing ring.The pressure-sensitive film set on the inner wall of the display ring 962 makes the test results visible. The staff can directly observe the color change of the film to determine whether the sealing ring has external damage. This intuitive way of presenting test results is convenient and fast, and the film can be reused, which reduces the cost of testing.

[0049] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A damage detection device for O-ring production, comprising: The base (1) is characterized in that a fixing device (7) for stretching and fixing the sealing ring is slidably connected to the base (1), an activating member (12) for driving the sealing ring fixed by the fixing device (7) to rotate is provided on the base (1), a mounting plate (10) is fixedly connected to one end of the base (1), a detection device (9) for detecting the surface of the sealing ring is provided on the mounting plate (10), a linkage device (8) for driving the detection device (9) to rotate when the sealing ring rotates is provided on the base (1), and a collection box (11) for collecting defective sealing rings is provided on the base (1); The detection device (9) comprises a fixed rod (91) fixedly connected to the linkage device (8), one end of the fixed rod (91) is fixedly connected to a threaded rod (92), a mounting frame (93) is fixedly connected to the mounting plate (10), a side end of the mounting frame (93) is rotatably connected to a gear one (94), the fixed rod (91) passes through the mounting frame (93) and the gear one (94), and is threadedly connected to the gear one (94), a connecting plate (95) is fixedly connected to the mounting plate (10), a side end of the connecting plate (95) is rotatably connected to a detection member one (96), and a side end of the detection member one (96) is plugged with a detection member two (97); The detection member 1 (96) comprises an insert ring (961) rotatably connected to the connection plate (95), a display ring (962) is inserted on the outer side of the insert ring (961), a through hole (963) is provided on the insert ring (961), a tracing member (964) having one end abutting against the surface of the sealing ring and the other end abutting against the inner wall of the display ring (962) is inserted in the through hole (963), and a gear 2 (965) is fixedly connected to the outer side of the insert ring (961), and the gear 2 (965) is meshingly connected with the gear 1 (94); When the activating member (12) drives the sealing ring on the fixing device (7) to rotate, it drives the linkage device (8) to move synchronously, so that the threaded rod (92) connected to the linkage device (8) moves along with it, thereby rotating the gear 1 (94) and driving the gear 2 (965) to rotate under the meshing action, so that the insert ring (961) rotates on the connecting plate (95). When the insert ring (961) rotates, it drives the tracing member (964) to rotate, so that the tracing member (964) generates a spiral motion trajectory on the outer surface of the sealing ring. When the surface of the sealing ring is damaged, the tracing member (964) fluctuates accordingly, thereby generating corresponding scratches on the inner wall of the display ring (962).

2. The device for detecting damage in the production of O-rings according to claim 1, characterized in that: The activation member (12) comprises a motor (2) fixedly connected to the base (1); the output end of the motor (2) passes through the base (1) and is fixedly connected to a sprocket wheel one (3); a mounting shaft (4) is rotatably connected to the base (1); a sprocket wheel two (5) is fixedly connected to the outer side of the mounting shaft (4); a chain (6) is meshedly connected to the side end of the sprocket wheel two (5), and the chain (6) is meshedly connected to the sprocket wheel one (3).

3. The device for detecting damage in the production of O-rings according to claim 2, characterized in that: The second detection member (97) also includes an insert ring (961), a display ring (962), a through hole (963), a tracing member (964) and a second gear (965).

4. The device for detecting damage in the production of O-rings according to claim 3, characterized in that: The side end of the plug ring (961) in the detection member 1 (96) is provided with a plug hole (966), and the side end of the plug ring (961) in the detection member 2 (97) is fixedly connected with a plug column (971), and the plug column (971) is plugged into the plug hole (966).

5. The device for detecting damage in the production of O-rings according to claim 4, characterized in that: The tracing member (964) comprises a connecting rod (9641) passing through the through hole (963); the bottom end of the connecting rod (9641) is fixedly connected to a scraping block (9642); the bottom end of the scraping block (9642) abuts against a sealing ring; the top end of the connecting rod (9641) is fixedly connected to a limiting plate (9644); the limiting plate (9644) is arranged inside the display ring (962); the top end of the limiting plate (9644) is fixedly connected to a marking needle (9645); the top end of the marking needle (9645) abuts against the top end inside the display ring (962); a spring (9643) is sleeved on the outside of the connecting rod (9641); one end of the spring (9643) is fixedly connected to the top end of the scraping block (9642); the other end of the spring (9643) is fixedly connected to the inside of the insert ring (961).

6. The device for detecting damage in the production of O-rings according to claim 5, characterized in that: The fixing device (7) comprises a limiting rod (71) plugged into the base (1), a stud (72) passing through the limiting rod (71), and the stud (72) is threadedly connected to the limiting rod (71), one end of the stud (72) abuts against one end of the base (1), one end of the limiting rod (71) abuts against the other end of the base (1), and a baffle (73) is fixedly connected to the side end of the limiting rod (71).

7. The device for detecting damage in the production of O-rings according to claim 6, characterized in that: The fixing device (7) further comprises a moving block (74) slidably connected to the base (1); a mounting tube (75) is sleeved on the moving block (74); a sealing ring is rotatably connected to the outer side of the mounting tube (75); a push rod (76) is inserted through the top of the moving block (74); a limit plate (78) is fixedly connected to the top of the push rod (76); a second spring (77) is sleeved on the outer side of the push rod (76); one end of the second spring (77) is fixedly connected to the top of the moving block (74); the other end of the second spring (77) is fixedly connected to the bottom of the limit plate (78); a pressure plate (79) is fixedly connected to the side end of the limit plate (78); a push block (710) is fixedly connected to the top of the limit plate (78); and the push block (710) is inserted into the chain (6).

8. The device for detecting damage in the production of O-rings according to claim 7, characterized in that: The linkage device (8) comprises a fixed frame (81) slidably connected to the base (1), a clamping claw 1 (82) and a clamping claw 2 (83) are fixedly connected to the fixed frame (81), and the clamping claw 1 (82) and the clamping claw 2 (83) are symmetrically distributed on one side of the fixed frame (81), and a push rod (84) is inserted through the side end of the mounting plate (10).

9. The device for detecting damage in the production of O-rings according to claim 8, characterized in that: The clamping claw 2 (83) comprises a fixing plate (831) fixedly connected to the fixing frame (81); a fixing ring (832) is rotatably connected to one side of the fixing plate (831); a gear 3 (833) is rotatably connected to the other side of the fixing plate (831); the fixing ring (832) and the gear 3 (833) are symmetrically distributed on both sides of the fixing plate (831); a rotating column (834) is meshedly connected inside the fixing ring (832); the rotating column (834) passes through the fixing ring (832) and the gear 3 (833); ), and meshingly connected with gear three (833), one side of the fixed plate (831) is rotatably connected with gear four (835), the gear four (835) and gear three (833) are meshingly connected, one end of the gear four (835) passes through the fixed plate (831) and is fixedly connected with a worm (836), the side end of the worm (836) is meshingly connected with a worm wheel (837), the side end of the worm wheel (837) is fixedly connected with a clamping rod (838), and the worm wheel (837) is rotatably connected with the fixed plate (831).

10. The device for detecting damage in the production of O-rings according to claim 9, characterized in that: The clamping claw one (82) also includes a fixed plate (831), a fixed ring (832), a gear three (833), a rotating column (834), a gear four (835), a worm (836), a worm wheel (837) and a clamping rod (838), and one end of the push rod (84) is at the same height as the rotating column (834) in the clamping claw two (83).

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