Detection equipment for valve production and end-driven vacuum gate valve thereof

Abstract

The invention provides detection equipment for valve production and an end-driven vacuum gate valve thereof, and relates to the technical field of impact detection, and the detection equipment comprises a detection frame, a mounting plate, an impact mechanism, a switching mechanism and a detection mechanism; the impact mechanism comprises two guide columns, a magnetic suction cup and an impact frame, and the magnetic suction cup and the impact frame are connected with the two guide columns in a sliding mode. According to the scheme, an electric telescopic rod drives a connecting plate to stretch out, so that a first toothed plate drives a first gear to rotate, the first gear drives a rotating disc to rotate through a rotating rod, cushion blocks are switched, an impact frame conducts impact testing on a valve plate through different cushion blocks, impact characteristics under different working conditions are simulated, and the testing efficiency is improved. The energy absorption and release rate in the impact process is changed, so that the peak force, rise time, duration and other parameters of the waveform are adjusted, compared with a single material, the device is more flexible, and the simulation requirement from simple impact to complex working conditions in the valve plate test can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of impact detection, and in particular to a detection device for valve production and an end-driven vacuum plug-in valve thereof. Background Art

[0002] The gate valve is a valve commonly used to control the flow of media in pipelines. Its production quality directly affects its safety and reliability. During the production process of the gate valve, the valve plate is the core opening and closing component of the gate valve. Its impact resistance directly affects the sealing reliability and structural safety of the valve. Therefore, impact resistance testing is required to ensure the reliability of the valve plate.

[0003] In related technologies, during the production process of the plug-in valve, the valve plate needs to be impact tested. However, some existing impact detection equipment mostly uses instantaneous impact to test the valve plate, which is not convenient for simulating the alternating impact in actual working conditions, such as water hammer effect and vibration load superposition, resulting in the test results being inconsistent with the actual service performance.

[0004] Therefore, it is necessary to provide a valve production detection equipment to solve the above technical problems. Summary of the Invention

[0005] The present invention provides a detection device for valve production, which solves the technical problem that some existing impact detection devices in the related art are not convenient for simulating alternating impacts in actual working conditions when testing valve plates.

[0006] In order to solve the above technical problems, the present invention provides a valve production detection device comprising a detection frame, a mounting plate, an impact mechanism, a switching mechanism and a detection mechanism; The impact mechanism includes two guide posts, a magnetic chuck and an impact frame, wherein the magnetic chuck and the impact frame are slidably connected to the two guide posts, the two guide posts are fixed on the opposite side of the detection frame and the mounting plate, and a mounting frame is fixed on the top of the detection frame. The mounting frame is connected to the guide wheel and the winding wheel in sequence from front to back through the rotating shaft; The switching mechanism includes a rotating disk, a mounting seat and a pad, the mounting seat is arranged on the top of the rotating disk, the pad is arranged on the inner side of the mounting seat, the inner side of the mounting plate is rotatably connected to a rotating rod, the top of the rotating rod is fixedly connected to the rotating disk, the bottom end of the rotating rod is fixedly provided with a first gear, the bottom of the mounting plate is fixedly provided with a first bracket, the inner side of the first bracket is slidably connected with a first tooth plate, the first tooth plate is meshed with the first gear, the bottom of the mounting plate is fixedly provided with an electric telescopic rod, the output end of the electric telescopic rod is fixedly provided with a connecting plate, and the left side of the connecting plate is fixedly connected to the first tooth plate.

[0007] Preferably, a suspension rope is provided on the surface of the guide wheel and the winding wheel, the bottom of the suspension rope is fixedly connected to the top of the magnetic suction cup, and a driving motor for driving the winding wheel to rotate is provided on the right side of the mounting frame.

[0008] Preferably, the mounting seats and pads are arranged in four groups in a circular array on the top of the rotating disk, the thickness, material and hardness of the four pads are different, and a sliding groove for use with the first tooth plate is provided on the inner side of the first bracket.

[0009] Preferably, the detection mechanism includes two mounting rods fixedly mounted on the right side of the top of the mounting plate, the surfaces of the two mounting rods are slidably connected to contact plates, the surfaces of the two mounting rods and the bottoms of the contact plates are sleeved with springs, the surfaces of the two mounting rods are provided with transverse plates, the inner sides of the transverse plates are provided with pressure sensors, and a pressure plate is provided on the right side of the impact frame; A laser sensor is fixedly provided on the inner side of the detection frame, a sliding seat is fixedly provided on the left side of the detection frame, a high-speed industrial camera is slidably connected to the top of the sliding seat, and a laser displacement sensor is fixedly provided on the top of the mounting plate.

[0010] Preferably, a mounting mechanism is fixedly provided on the top of the mounting plate, and the mounting mechanism includes two support seats, the bottoms of the two support seats are fixedly connected to the top of the mounting plate, the tops of the two support seats are fixedly provided with mounting brackets, the inner sides of the two mounting brackets are threadedly connected with locking screws, and the bottoms of the two locking screws are rotatably connected to clamping plates.

[0011] Preferably, a testing mechanism is fixedly provided at the bottom of the rotating disk, and the testing mechanism includes a sliding bracket fixedly provided at the bottom of the rotating disk, a sliding frame is slidably connected to the inner side of the sliding bracket, the sliding frame is slidably connected to the inner side of the rotating disk, the top of the sliding frame is fixedly connected to the bottom of the mounting seat, a roller is rotatably connected to the surface of the sliding frame, and a convex seat is fixedly provided on the top of the mounting plate; A screw rod is fixed on the top of the mounting plate, an adjustment plate is fixed on the surface of the screw rod through a nut, and a dial indicator is arranged on the inner side of the adjustment plate.

[0012] Preferably, the inner side of the mounting plate is rotatably connected to a cleaning mechanism, and the cleaning mechanism includes a rotating shaft rotatably connected to the inner side of the mounting plate, a cleaning disk is fixed to the top end of the rotating shaft, a second gear is fixed to the bottom end of the rotating shaft, a second bracket is fixed to the bottom of the mounting plate, a second tooth plate is slidably connected to the inner side of the second bracket, the second tooth plate is meshed with the second gear, and the right side of the connecting plate is fixedly connected to the second tooth plate.

[0013] Preferably, two protective frames are fixedly provided on the outer side of the detection frame, and a shock-absorbing pad is provided on the bottom of the detection frame.

[0014] An end-driven vacuum plug-in valve comprises a valve body and a valve plate. A mounting shell is fixedly provided on the right side of the valve body, a metal bellows is fixedly provided on the inner side of the mounting shell, a transmission shaft is provided on the inner side of the mounting shell and on the inner side of the metal bellows via a universal bearing, an output disk is fixedly provided on the right end of the transmission shaft, and the output disk is rotatably connected to the mounting shell.

[0015] Compared with related technologies, the valve production detection equipment and end-driven vacuum gate valve provided by the present invention have the following beneficial effects: When the device is working, the electric telescopic rod drives the connecting plate to extend, so that the first tooth plate drives the first gear to rotate. The first gear drives the rotating disk to rotate through the rotating rod, thereby switching the pads. The impact frame uses different pads to perform impact tests on the valve plate, simulating the impact characteristics under different working conditions, changing the energy absorption and release rate during the impact process, and thus adjusting the peak force, rise time, duration and other parameters of the waveform. Compared with a single material, it is more flexible and can meet the simulation requirements of valve plate tests from simple impact to complex working conditions, improve the accuracy of test results, and avoid the problem of excessive wear of a single pad. During the test, low-energy pads can be used for pre-testing. After confirming the critical failure threshold of the valve plate, high-energy pads can be switched for precise loading to avoid direct use of high-energy pads, which may cause instantaneous damage to the sample and make it impossible to obtain intermediate process data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 The best structural diagram provided by the present invention; Figure 2 A schematic diagram of the structure of a left view of the detection frame provided by the present invention; Figure 3 A schematic structural diagram of the impact mechanism provided by the present invention; Figure 4 A schematic structural diagram of the switching mechanism and the testing mechanism provided by the present invention; Figure 5 for Figure 4 A schematic structural diagram of the mounting base shown; Figure 6 for Figure 4 A schematic structural diagram of the first bracket shown; Figure 7 A schematic structural diagram of the detection mechanism provided by the present invention; Figure 8 for Figure 7 The enlarged structural diagram of point A is shown; Figure 9 A schematic structural diagram of the mounting mechanism provided by the present invention; Figure 10 A schematic structural diagram of the cleaning structure provided by the present invention; Figure 11 A schematic diagram of a state in which the electric telescopic rod provided by the present invention drives the connecting plate, the first gear plate and the second gear plate to move forward, causing the first gear and the second gear to rotate; Figure 12 A schematic structural diagram of the valve body provided by the present invention; Figure 13 for Figure 12 The structural diagram of the installation shell cross-section view is shown.

[0018] Description of Figure Numbers: 1. Detection frame; 2. Mounting plate; 3. Impact mechanism; 31. Guide column; 32. Magnetic chuck; 33. Impact frame; 34. Mounting frame; 35. Guide wheel; 36. Winding wheel; 37. Lifting rope; 38. Drive motor; 4. Switching mechanism; 41. Rotating plate; 42. Mounting seat; 43. Spacer; 44. Rotating rod; 45. First gear; 46. First bracket; 47. First tooth plate; 48. Electric telescopic rod; 49. Connecting plate; 5. Detection mechanism; 51. Mounting rod; 52. Contact plate; 53. Spring; 54. Horizontal plate; 55. Pressure sensor; 56. Pressure plate; 57. Laser sensor; 58. Sliding seat; 59. High-speed industrial camera; 6. Laser displacement sensor; 7. Mounting mechanism; 71. Support base; 72. Mounting bracket; 73. Locking screw; 74. Clamping plate; 8. Testing mechanism; 81. Sliding bracket; 82. Sliding frame; 83. Roller; 84. Boss; 85. Screw; 86. Adjustment plate; 87. Dial indicator; 9. Cleaning mechanism; 91. Rotating shaft; 92. Cleaning disc; 93. Second gear; 94. Second bracket; 95. Second gear plate; 10. Protective frame; 11. Valve body; 12. Valve plate; 13. Mounting shell; 14. Metal bellows; 15. Drive shaft; 16. Output disc.

[0019] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] The present invention provides a detection device for valve production and an end-driven vacuum plug-in valve thereof.

[0022] First embodiment: See also Figures 1 to 6 , a valve production detection device, comprising a detection frame 1, a mounting plate 2, an impact mechanism 3, a switching mechanism 4 and a detection mechanism 5; The impact mechanism 3 includes two guide posts 31, a magnetic chuck 32, and an impact frame 33. The magnetic chuck 32 and the impact frame 33 are slidably connected to the two guide posts 31. The two guide posts 31 are fixed on the opposite side of the detection frame 1 and the mounting plate 2. A mounting frame 34 is fixed on the top of the detection frame 1. The mounting frame 34 is rotatably connected to a guide wheel 35 and a winding wheel 36 from front to back through a rotating shaft. A suspension rope 37 is provided on the surface of the guide wheel 35 and the winding wheel 36. The bottom of the suspension rope 37 is fixedly connected to the top of the magnetic chuck 32. A driving motor 38 for driving the winding wheel 36 to rotate is provided on the right side of the mounting frame 34. Please combine Figure 3 : Start the drive motor 38, the drive motor 38 rotates to drive the reel 36 to rotate, the reel 36 rotates to pull the magnetic cup 32 upward through the suspension rope 37, the magnetic cup 32 moves and drives the impact frame 33 to slide upward on the surface of the guide column 31, when the impact frame 33 moves to a certain height, the power to the magnetic cup 32 is cut off, and the impact frame 33 then freely falls along the two guide columns 31 to perform an impact test on the valve plate 12; Furthermore, the drive motor 38 is started, and the drive motor 38 rotates in the opposite direction to drive the reel 36 to lower the suspension rope 37, and the magnetic chuck 32 then moves downward along the guide column 31. When the bottom of the magnetic chuck 32 contacts the top of the impact frame 33, the magnetic chuck 32 is energized, and then connected to the impact frame 33. Preferably, the bottom of the magnetic chuck 32 is an electromagnet, and the magnetic chuck 32 and the impact frame 33 are fixed by powering on, and the magnetic chuck 32 and the impact frame 33 are separated by powering off; The switching mechanism 4 includes a rotating disk 41, a mounting seat 42 and a cushion block 43. The mounting seat 42 is arranged on the top of the rotating disk 41, and the cushion block 43 is arranged on the inner side of the mounting seat 42. The inner side of the mounting plate 2 is rotatably connected to a rotating rod 44. The top of the rotating rod 44 is fixedly connected to the rotating disk 41. The bottom end of the rotating rod 44 is fixedly provided with a first gear 45. The bottom of the mounting plate 2 is fixedly provided with a first bracket 46. The inner side of the first bracket 46 is slidably connected with a first toothed plate 47. The first toothed plate 47 is meshed with the first gear 45. The bottom of the mounting plate 2 is fixedly provided with an electric telescopic rod 48. The output end of the electric telescopic rod 48 is fixedly provided with a connecting plate 49. The left side of the connecting plate 49 is fixedly connected to the first toothed plate 47. Please combine Figures 4 to 6 : Start the electric telescopic rod 48, which drives the connecting plate 49 to extend forward. The connecting plate 49 moves forward and drives the first tooth plate 47 to slide forward on the inner side of the first bracket 46. The movement of the first tooth plate 47 drives the first gear 45 to rotate clockwise. The first gear 45 then drives the rotating disk 41 to rotate through the rotating rod 44, thereby switching the positions of the four mounting seats 42 and the pads 43. By switching different pads 43, when the impact frame 33 performs an impact test on the valve plate 12 through the pads 43, different impact waveforms are generated. Different impact waveforms have different energy transfer characteristics, thereby simulating the alternating impact in actual working conditions; The mounting seats 42 and pads 43 are arranged in four groups in a circular array on the top of the rotating disk 41. The four pads 43 have different thicknesses, materials, and hardnesses. The inner side of the first bracket 46 is provided with a sliding groove for use with the first tooth plate 47. Preferably, in an impact test, the hardness, number of layers, and material combination of the pad 43 directly affect the transmission path and energy dissipation characteristics of the impact load.

[0023] In this embodiment, unlike existing impact testing equipment, when the present equipment is in operation, the electric telescopic rod 48 drives the connecting plate 49 to extend, thereby causing the first tooth plate 47 to drive the first gear 45 to rotate, and the first gear 45 drives the rotating disk 41 to rotate through the rotating rod 44, thereby switching the pad 43, so that the impact frame 33 performs impact testing on the valve plate 12 through different pads 43, simulating the impact characteristics under different working conditions, changing the energy absorption and release rate during the impact process, and thus adjusting the peak force, rise time, duration and other parameters of the waveform. Compared with a single material, this is more flexible and can meet the simulation requirements of the valve plate 12 from simple impact to complex working conditions, improve the accuracy of the test results, and avoid the problem of excessive wear of a single pad 43; During the test, a low-energy pad 43 can be used for pre-testing. After confirming the critical failure threshold of the valve plate 12, the high-energy pad 43 can be switched for precise loading to avoid direct use of the high-energy pad 43, which may cause instantaneous damage to the sample and make it impossible to obtain intermediate process data.

[0024] Second embodiment: See also Figures 7 to 9 The detection mechanism 5 includes two mounting rods 51 fixed to the right side of the top of the mounting plate 2. The surfaces of the two mounting rods 51 are slidably connected to contact plates 52. The surfaces of the two mounting rods 51 and the bottoms of the contact plates 52 are sleeved with springs 53. The surfaces of the two mounting rods 51 are provided with horizontal plates 54. The inner side of the horizontal plates 54 is provided with pressure sensors 55. A pressure plate 56 is provided on the right side of the impact frame 33. A laser sensor 57 is fixedly provided on the inner side of the detection frame 1, a sliding seat 58 is fixedly provided on the left side of the detection frame 1, a high-speed industrial camera 59 is slidably connected to the top of the sliding seat 58, and a laser displacement sensor 6 is fixedly provided on the top of the mounting plate 2; Please combine Figure 7 and Figure 8 : When the impact frame 33 falls freely downward to impact, it will also drive the pressure plate 56 to move downward. During the downward movement of the pressure plate 56, it will contact the contact plate 52, thereby causing the contact plate 52 to move downward. The spring 53 contracts, and the contact plate 52 will contact the pressure sensor 55 when moving downward. The pressure sensor 55 transmits the signal to the main controller. Moreover, when the impact frame 33 falls, the laser sensor 57 will also transmit the signal to the main controller at the same time. After receiving the two signals, the main controller will control the high-speed industrial camera 59 to capture the impact process of the impact frame 33 on the valve plate 12, and detect the deformation displacement of the valve plate 12 after the impact through the laser displacement sensor 6.

[0025] A mounting mechanism 7 is fixedly provided on the top of the mounting plate 2. The mounting mechanism 7 includes two support seats 71. The bottoms of the two support seats 71 are fixedly connected to the top of the mounting plate 2. The tops of the two support seats 71 are fixedly provided with mounting brackets 72. The inner sides of the two mounting brackets 72 are threadedly connected to locking screws 73. The bottoms of the two locking screws 73 are rotatably connected to clamping plates 74. Please combine Figure 9 , place the valve plate 12 on top of the two support seats 71, then tighten the locking screw 73, and use the clamping plate 74 to fix the valve plate 12 through the locking screw 73 to avoid the valve plate 12 being loosely fixed during the impact test, resulting in low accuracy of the test data.

[0026] In this embodiment, when the impact frame 33 is in free fall to perform an impact test on the valve plate 12, the contact plate 52 is pressed downward by the pressure plate 56, and the displacement of the contact plate 52 is triggered to directly sense the mechanical contact signal when the impact frame 33 falls, ensuring that an electrical signal is generated at the moment the pressure plate 56 contacts the contact plate 52. The principle of optical signal blocking or reflection is used to monitor the falling action of the impact frame 33 in real time, which is not affected by mechanical contact delay and has a faster response speed. The main controller needs to receive both signals at the same time before starting the industrial camera, avoiding false triggering or missed triggering of a single sensor due to mechanical wear, optical path interference and other factors, ensuring that the camera captures the most realistic initial impact moment, and effectively avoiding the time deviation between the impact moment captured by the industrial camera and the actual mechanical response, which affects the accuracy of subsequent deformation analysis.

[0027] Third embodiment: See also Figure 4 、 Figure 5 、 Figure 10 and Figure 11 A testing mechanism 8 is fixedly provided at the bottom of the rotating disk 41. The testing mechanism 8 includes a sliding bracket 81 fixedly provided at the bottom of the rotating disk 41. A sliding bracket 82 is slidably connected to the inner side of the sliding bracket 81. The sliding bracket 82 is slidably connected to the inner side of the rotating disk 41. The top of the sliding bracket 82 is fixedly connected to the bottom of the mounting seat 42. A roller 83 is rotatably connected to the surface of the sliding bracket 82. A convex seat 84 is fixedly provided on the top of the mounting plate 2. A screw 85 is fixed on the top of the mounting plate 2, an adjustment plate 86 is fixed to the surface of the screw 85 via a nut, and a dial indicator 87 is provided on the inner side of the adjustment plate 86; Please combine Figure 4 and Figure 5 : The rotating disk 41 will simultaneously drive the sliding bracket 81 and the sliding frame 82 to rotate during the rotation process. When the roller 83 on the surface of the sliding frame 82 contacts the convex seat 84, the roller 83 will push the sliding frame 82 upward, and the sliding frame 82 moves upward, thereby driving the mounting seat 42 and the cushion block 43 to move upward. During the rotation of the disk 41, the cushion block 43 keeps rotating at the same height. When the cushion block 43 rotates to the bottom of the dial indicator 87, the dial indicator 87 is used to detect the flatness of the surface of the cushion block 43. Furthermore, when the roller 83 is out of contact with the protrusion 84, the sliding frame 82 slides downward on the inner side of the sliding bracket 81 under the action of the gravity of the pad 43 and the mounting seat 42, thereby resetting the position of the pad 43; The inner side of the mounting plate 2 is rotatably connected to a cleaning mechanism 9, and the cleaning mechanism 9 includes a rotating shaft 91 rotatably connected to the inner side of the mounting plate 2. A cleaning disc 92 is fixed to the top end of the rotating shaft 91, and a second gear 93 is fixed to the bottom end of the rotating shaft 91. A second bracket 94 is fixed to the bottom of the mounting plate 2, and a second toothed plate 95 is slidably connected to the inner side of the second bracket 94. The second toothed plate 95 meshes with the second gear 93, and the right side of the connecting plate 49 is fixedly connected to the second toothed plate 95; Please combine Figure 10 : When the electric telescopic rod 48 drives the connecting plate 49 to extend, it will also drive the second tooth plate 95 to slide forward on the inner side of the second bracket 94. The movement of the second tooth plate 95 will drive the second gear 93 to rotate. The rotation of the second gear 93 drives the cleaning disk 92 to rotate through the rotating shaft 91. The top of the pad 43 is cleaned by the rotation of the cleaning disk 92, thereby avoiding the presence of oil and metal debris on the top of the pad 43, which may cause inaccurate detection data of the dial indicator 87, and at the same time, it can improve the transmission effect of the impact waveform when the pad 43 is in use.

[0028] Two protective frames 10 are fixedly provided on the outer side of the detection frame 1 , and a shock-absorbing pad is provided on the bottom of the detection frame 1 .

[0029] In this embodiment, when the impact testing equipment is working, the mechanical structure of the rotating disk 41 linked to the sliding bracket 81 works in conjunction with the cleaning mechanism 9 driven by the electric telescopic rod 48. Through the integrated design of "automatic positioning-flatness detection-cleaning and maintenance", it has multiple advantages in improving the test accuracy and service life of the pad 43. The cleaning disk 92 cleans the surface of the pad 43, eliminates the interface softening effect, and ensures that the impact load is directly transmitted to the valve plate 12, which is closer to the actual working conditions.

[0030] Fourth embodiment: See also Figure 12 and Figure 13 , an end-driven vacuum plug-in valve, comprising a valve body 11 and a valve plate 12, a mounting shell 13 is fixedly provided on the right side of the valve body 11, a metal bellows 14 is fixedly provided on the inner side of the mounting shell 13, a transmission shaft 15 is provided on the inner side of the mounting shell 13 and on the inner side of the metal bellows 14 through a universal bearing, an output disk 16 is fixedly provided on the right end of the transmission shaft 15, and the output disk 16 is rotatably connected to the mounting shell 13.

[0031] In this embodiment, the dynamic sealing structure of the end-driven vacuum plug-in valve is a metal bellows 14 seal, that is, a sealing structure that isolates the atmosphere from the valve body 11, that is, the valve driving force drives the drive shaft 15 to rotate, thereby driving the valve plate 12 to open and close through the drive shaft 15, and the seal between the drive shaft 15 and the vacuum cavity of the valve body 11 is the metal bellows 14. Compared with the rubber ring sealing structure, the rubber ring sealing structure has a certain compression amount between the drive shaft 15 and the rubber ring, which will cause wear to the rubber ring during rotation, causing aging, while the metal bellows 14 sealing structure is that the drive shaft 15 passes through the metal bellows 14, and the metal bellows 14 only produces a small angle of bending, which effectively reduces the sealing leakage rate and improves the operating pressure range and service life.

[0032] Please refer to the Figures 1 to 13 The working principle of the valve production detection equipment and the end-driven vacuum gate valve provided by the present invention is as follows: Step S1: Place the valve plate 12 on top of the two support seats 71, then tighten the locking screw 73, and fix the valve plate 12 with the clamping plate 74 through the locking screw 73; Step S2: Start the electric telescopic rod 48, which drives the connecting plate 49 to extend forward. The connecting plate 49 moves forward, driving the first toothed plate 47 to slide forward on the inner side of the first bracket 46. The movement of the first toothed plate 47 drives the first gear 45 to rotate clockwise. The first gear 45 then drives the rotating disk 41 to rotate via the rotating rod 44, thereby switching the positions of the four mounting seats 42 and the pads 43. By switching different pads 43, different impact waveforms are generated when the impact frame 33 performs an impact test on the valve plate 12 through the pads 43. Step S3: Start the drive motor 38. The drive motor 38 rotates to drive the reel 36 to rotate. The reel 36 rotates to pull the magnetic cup 32 upward through the suspension rope 37. The magnetic cup 32 moves and drives the impact frame 33 to slide upward on the surface of the guide column 31. When the impact frame 33 moves to a certain height, the power to the magnetic cup 32 is cut off. The impact frame 33 then freely falls along the two guide columns 31 to perform an impact test on the valve plate 12. The deformation displacement of the valve plate 12 after the impact is detected by the laser displacement sensor 6. Step S4, please refer to step S2. During the rotation of the rotating disk 41, the sliding bracket 81 and the sliding frame 82 are simultaneously driven to rotate. When the roller 83 on the surface of the sliding frame 82 contacts the protrusion 84, the roller 83 will push the sliding frame 82 upward. The sliding frame 82 moves upward, thereby driving the mounting seat 42 and the cushion block 43 to move upward. During the rotation of the disk 41, the cushion block 43 remains in a rotating state at the same height. When the cushion block 43 rotates to the bottom of the dial indicator 87, the dial indicator 87 is used to check the flatness of the surface of the cushion block 43. Step S5, please combine with step S2. When the electric telescopic rod 48 drives the connecting plate 49 to extend, it will simultaneously drive the second tooth plate 95 to slide forward on the inner side of the second bracket 94. The movement of the second tooth plate 95 drives the second gear 93 to rotate. The rotation of the second gear 93 drives the cleaning disk 92 to rotate via the rotating shaft 91. The rotation of the cleaning disk 92 cleans the top of the cushion block 43, thereby preventing oil and metal debris on the top of the cushion block 43 from causing inaccurate detection data of the dial indicator 87. At the same time, it can improve the transmission effect of the impact waveform when the cushion block 43 is used. Step S6, please combine with step S3. When the impact frame 33 falls freely downward, it will also drive the pressure plate 56 to move downward. During the downward movement of the pressure plate 56, it will contact the contact plate 52, thereby causing the contact plate 52 to move downward. The spring 53 contracts, and the contact plate 52 will contact the pressure sensor 55 when moving downward. The pressure sensor 55 transmits the signal to the main controller. Moreover, when the impact frame 33 falls, the laser sensor 57 will also transmit the signal to the main controller at the same time. After receiving the two signals, the main controller will control the high-speed industrial camera 59 to capture the impact process of the impact frame 33 on the valve plate 12.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A valve production testing equipment, characterized in that: It includes a detection frame, a mounting plate, an impact mechanism, a switching mechanism and a detection mechanism; The impact mechanism includes two guide posts, a magnetic chuck and an impact frame, wherein the magnetic chuck and the impact frame are slidably connected to the two guide posts, the two guide posts are fixed on the opposite side of the detection frame and the mounting plate, and a mounting frame is fixed on the top of the detection frame. The mounting frame is connected to the guide wheel and the winding wheel in sequence from front to back through the rotating shaft; The switching mechanism includes a rotating disk, a mounting seat and a pad, the mounting seat is arranged on the top of the rotating disk, the pad is arranged on the inner side of the mounting seat, the inner side of the mounting plate is rotatably connected to a rotating rod, the top of the rotating rod is fixedly connected to the rotating disk, the bottom end of the rotating rod is fixedly provided with a first gear, the bottom of the mounting plate is fixedly provided with a first bracket, the inner side of the first bracket is slidably connected with a first tooth plate, the first tooth plate is meshed with the first gear, the bottom of the mounting plate is fixedly provided with an electric telescopic rod, the output end of the electric telescopic rod is fixedly provided with a connecting plate, and the left side of the connecting plate is fixedly connected to the first tooth plate.

2. The valve production detection equipment according to claim 1, characterized in that: A suspension rope is provided on the surface of the guide wheel and the winding wheel, the bottom of the suspension rope is fixedly connected to the top of the magnetic suction cup, and a driving motor for driving the winding wheel to rotate is provided on the right side of the mounting frame.

3. The valve production detection equipment according to claim 1, characterized in that: The mounting seats and pads are arranged in four groups in a circular array on the top of the rotating disk. The thickness, material and hardness of the four pads are different. A sliding groove for use with the first tooth plate is provided on the inner side of the first bracket.

4. The valve production detection equipment according to claim 1, characterized in that: The detection mechanism includes two mounting rods fixedly mounted on the right side of the top of the mounting plate, the surfaces of the two mounting rods are slidably connected to contact plates, the surfaces of the two mounting rods and the bottoms of the contact plates are sleeved with springs, the surfaces of the two mounting rods are provided with cross plates, the inner sides of the cross plates are provided with pressure sensors, and a pressure plate is provided on the right side of the impact frame; A laser sensor is fixedly provided on the inner side of the detection frame, a sliding seat is fixedly provided on the left side of the detection frame, a high-speed industrial camera is slidably connected to the top of the sliding seat, and a laser displacement sensor is fixedly provided on the top of the mounting plate.

5. The valve production detection equipment according to claim 1, characterized in that: A mounting mechanism is fixedly provided on the top of the mounting plate, and the mounting mechanism includes two support seats. The bottoms of the two support seats are fixedly connected to the top of the mounting plate. The tops of the two support seats are fixedly provided with mounting brackets. The inner sides of the two mounting brackets are threadedly connected with locking screws, and the bottoms of the two locking screws are rotatably connected to clamping plates.

6. The valve production detection equipment according to claim 1, characterized in that: A testing mechanism is fixedly provided at the bottom of the rotating disk, and the testing mechanism includes a sliding bracket fixedly provided at the bottom of the rotating disk, a sliding bracket is slidably connected to the inner side of the sliding bracket, the sliding bracket is slidably connected to the inner side of the rotating disk, the top of the sliding bracket is fixedly connected to the bottom of the mounting seat, a roller is rotatably connected to the surface of the sliding bracket, and a convex seat is fixedly provided on the top of the mounting plate; A screw rod is fixed on the top of the mounting plate, an adjustment plate is fixed on the surface of the screw rod through a nut, and a dial indicator is arranged on the inner side of the adjustment plate.

7. The valve production detection equipment according to claim 1, characterized in that: The inner side of the mounting plate is rotatably connected to a cleaning mechanism, and the cleaning mechanism includes a rotating shaft rotatably connected to the inner side of the mounting plate, a cleaning disk is fixedly provided at the top end of the rotating shaft, a second gear is fixedly provided at the bottom end of the rotating shaft, a second bracket is fixedly provided at the bottom of the mounting plate, a second tooth plate is slidably connected to the inner side of the second bracket, the second tooth plate is meshed with the second gear, and the right side of the connecting plate is fixedly connected to the second tooth plate.

8. The valve production detection equipment according to claim 1, characterized in that: Two protective frames are fixedly arranged on the outer side of the detection frame, and a shock-absorbing pad is arranged on the bottom of the detection frame.

9. An end-driven vacuum gate valve, characterized in that: The detection equipment described in any one of claims 1 to 8 is used to detect a vacuum plug-in valve, and includes a valve body and a valve plate. A mounting shell is fixedly provided on the right side of the valve body, a metal bellows is fixedly provided on the inner side of the mounting shell, a transmission shaft is provided on the inner side of the mounting shell and on the inner side of the metal bellows through a universal bearing, an output disk is fixedly provided on the right end of the transmission shaft, and the output disk is rotatably connected to the mounting shell.

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