Automatic drilling and milling device for valve plate machining

Abstract

The invention belongs to the field of valve plate drilling and milling, and particularly relates to a valve plate machining automatic drilling and milling device which comprises a disc-shaped center table, the top of the center table is fixedly connected with a fixing table used for containing a workpiece to be machined, and the outer side of the center table is rotationally connected with a rotatable adjusting disc in a clamped mode. Two symmetrically-arranged driving motors are arranged on the top face of the adjusting disc, the output ends of the two driving motors are fixedly connected with a trepanning drill bit and a reaming drill bit correspondingly, and a lead screw nut mechanism used for driving the driving motors to move horizontally is arranged below the driving motors. A vacuum suction cup capable of ascending, descending and horizontally moving is arranged above the workpiece to be machined, highly-automatic valve plate drilling work and carrying, fixing and transferring work of the workpiece to be machined are achieved, operation or auxiliary operation is carried out through one vacuum suction cup, and the fixing process and the fixing releasing process of the workpiece to be machined are rapid and convenient.

Description

Technical Field

[0001] The invention belongs to the field of valve plate drilling and milling, in particular to an automatic drilling and milling device for valve plate machining. Background Art

[0002] Valve plates, also known as valve plates, are various parts and materials used to make valves. Valves are pipeline accessories used to open and close pipelines and control flow direction. They have functions such as shutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief.

[0003] There are many types of valves. The butterfly valve, also known as the flap valve, is a simple-structured and widely used regulating valve. The main control component inside is the butterfly plate. The butterfly plate needs to be made into a circular shape first, and then a through hole connected to the control shaft is drilled.

[0004] When processing traditional valve plates, such as butterfly plates, the valve plates need to be firmly fixed in a predetermined position, and then through-drilled. After the drilling is completed, the valve plates need to be released before being transported outward. Traditional processes and devices have low automation, and each time the valve plates are fixed and released, multiple parts often need to cooperate with each other. Not only is the operation more complicated, but most operations also require manual assistance, which is inconvenient.

[0005] To this end, the present invention provides an automated drilling and milling device for valve plate machining. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the valve plate processing automatic drilling and milling device described in the present invention comprises a disc-shaped center table, the top of the center table is fixedly connected to a fixed table for placing a workpiece to be processed, the outer side of the center table is rotatably clamped with a rotatable adjustment disk, two symmetrically arranged driving motors are arranged on the top surface of the adjustment disk, the output ends of the two driving motors are respectively fixedly connected to a hole-opening drill bit and a reaming drill bit, a screw nut mechanism for driving the driving motor to translate is arranged below the driving motor, and a vacuum suction cup that can be lifted and translated is arranged above the workpiece to be processed; Through the setting of the fixed table, the middle part of the top surface of the workpiece to be processed is first adsorbed and fixed by a movable vacuum suction cup, and then the workpiece to be processed is lifted up and translated to the top of the fixed table, and the vacuum suction cup and the workpiece to be processed are lowered together, so that the bottom surface of the workpiece to be processed fits with the fixed table, and at the same time, the vacuum suction cup does not release the negative pressure, and increases the downward pressure to firmly fix the workpiece to be processed on the surface of the fixed table. The surface of the fixed table is provided with a groove that matches the surface shape of the workpiece to be processed to ensure the fixing stability of the workpiece to be processed, and then the drilling process is carried out; first, the drive motor connected to the hole drill is controlled by the lead screw nut mechanism to translate, and the drive motor drives the hole drill to The hole-drilling drill bit rotates and enters the interior of the workpiece to be processed from one end to continuously perform hole-drilling work. During the hole-drilling process, the lead screw and nut mechanism needs to periodically translate the hole-drilling drill bit outward to clean up the iron filings accumulated in the hole and improve the hole-drilling quality. The lengths of the hole-drilling drill bit and the reaming drill bit are both longer than the radius of the workpiece to be processed. After the hole-drilling drill bit has drilled a hole of more than half the length at one end of the workpiece to be processed, the hole-drilling drill bit is withdrawn first, and the adjustment disk is controlled to rotate half a circle. At this time, the hole-drilling drill bit comes to the other side of the workpiece to be processed, and the reaming drill bit comes to the original position of the hole-drilling drill bit. At this time, the two lead screw and nut mechanisms translate simultaneously close to the workpiece to be processed, and the hole-drilling drill bit and the reaming drill bit are The heads rotate at the same time, the drilling drill drills a hole in the workpiece to be processed from the other end, and the reaming drill grinds and reams the position where the hole has been drilled in the workpiece. During the reaming process, the reaming drill also needs to maintain the rhythm of exiting the hole in stages like the drilling drill, so as to clean the iron filings generated by reaming. The moving speed of the reaming drill needs to be lower than the translation speed of the drilling drill. The drilling drill completes the drilling work first, and the two will not touch each other. When the drilling and reaming of one side are completed, rotate the adjusting disk to allow the reaming drill to rotate to the other end to ream the hole that has not been reamed. Finally, the reaming drill exits the workpiece to be processed, and the vacuum suction cup transfers the processed workpiece and puts it A new workpiece to be processed is inserted for the next round of processing; through this setting, a highly automated valve plate drilling work is realized, and the handling, fixing and transferring of the workpiece to be processed are all operated or assisted by a vacuum suction cup, so that the fixing and releasing processes of the workpiece to be processed are fast and convenient, and the punching method adopts double-head punching, which not only reduces the length required for the hole-opening drill and the reaming drill, but also improves the drilling stability. Because when a longer hole-opening drill is used for drilling, the drilling end will not be enough due to the farther driving source; at the same time, the reaming step is added in the hole-opening process, and the efficiency is also improved compared with reaming after all the holes are opened.

[0008] Preferably, the middle part of the bottom surface of the center table protrudes outward, and a base is arranged below the center table, and a support seat is fixedly connected to the top of the base, and the support seat is rotatably connected to the protruding part of the bottom of the center table, and an electric telescopic rod for adjusting the tilt direction of the center table is fixedly connected to the top surface of the base. Since the depth of the hole to be opened is deep, it is necessary to discharge the iron filings generated in the hole opening process in time. During the hole opening process, the electric telescopic rod is pushed up to make the entire adjustment disk and the center table tilt, so that the hole in the hole opening process is tilted downward, so that when the drill bit moves out of the hole, the internal iron filings can be discharged in the heavy The drill bit rotates half a circle to drill the other half of the hole, and at this time, the reaming drill reams the hole that is tilted downward, because the reaming process requires more cleaning of iron chips in the hole, and because the reaming process is a fine grinding process, compared with opening a hole, reaming requires more cleaning of iron chips, and when the reaming drill rotates to the other side for reaming, since the hole has been penetrated at this time, the generated chips can be directly discharged from the other end, thereby ensuring the quality of the hole after reaming.

[0009] Preferably, two symmetrically arranged cooling nozzles are fixedly connected to the top of the adjustment disk, and the output ends of the cooling nozzles face the punching end of the workpiece to be processed. Two nozzles are also arranged on the top surface of the center table, and the nozzles are used to spray lubricating oil. In order to prevent the temperature of the hole-making drill bit from being too high, water is continuously sprayed toward the end of the workpiece to be processed through the cooling nozzle. The water flow contacts the hole-making drill bit, which can effectively reduce the temperature of the hole-making drill bit. At the same time, during the reaming process, it is necessary to apply a proper amount of lubricating oil to the surface of the reaming drill bit. On the one hand, it can reduce friction and reduce the temperature of the reaming drill bit. At the same time, the application of lubricating oil can also improve the dimensional accuracy and surface quality of the hole, make the processed hole smoother, and effectively discharge chips. It should be noted that after each processing is completed, the surface of the reaming drill bit should be rinsed with cleaning water, because some debris will stick to its surface due to the lubricating oil, affecting the next work.

[0010] Preferably, a vertically arranged electric telescopic rod is arranged above the vacuum suction cup, and the bottom of the electric telescopic rod is rotatably connected to the vacuum suction cup via a rotating shaft, and an electric slide rail for driving the electric telescopic rod to translate is arranged on the top of the electric telescopic rod, and the lifting and lowering of the vacuum suction cup is controlled by the extension and shortening of the electric telescopic rod, and the left and right translation of the electric telescopic rod and the vacuum suction cup is controlled by the electric slide rail. The setting of the rotating shaft allows the vacuum suction cup to be tilted synchronously when the workpiece to be processed is set tilted, and does not hinder the process of pressing down and fixing the workpiece to be processed.

[0011] Preferably, two sunken grooves for installing the screw nut mechanism are provided on the top surface of the adjustment disk, and the cooling nozzle is located on one side of the screw nut mechanism. The two screw nut mechanisms are located on the same horizontal line, and the forward drilling work of the two drive motors is controlled by the screw nut mechanism. The two screw nut mechanisms are arranged on the same horizontal line, which ensures that the drilling process and the reaming process can be carried out synchronously. The cooling nozzle is positioned on the outside and will not hinder the movement of the drive motor.

[0012] Preferably, two symmetrically arranged collecting hoods are fixedly connected to the outer side of the top surface of the center table, and the height of the collecting hood is lower than the horizontal height of the reaming drill bit and the hole-opening drill bit. The nozzle is fixedly connected to the top of the collecting hood, and the nozzle is located directly below the reaming drill bit and the hole-opening drill bit. The bottom of the collecting hood is fixedly connected to a transmission pipe connected to the bottom of the center table. In order to collect the generated iron filings, two collecting hoods are set at both ends of the workpiece to be processed. When the workpiece to be processed is tilted to both sides, the collecting hood on the other side will catch the iron filings carried by the cooling water, and will not cause the problem of iron filings splashing outside the device. The nozzle is located on the top of the collecting hood, close to the reaming drill bit, so that the lubricating oil sprayed from the nozzle can effectively adhere to the surface of the reaming drill bit.

[0013] Preferably, four restraining plates are fixedly connected to the top surface of the center table, and the restraining plates are arranged in an arc shape. The collecting cover is fixed between two adjacent restraining plates. The arrangement of the restraining plates allows the workpiece to be processed placed above the fixed table to be wrapped by the restraining plates on all sides, so that the up, down, left and right sides of the workpiece to be processed are restricted, which greatly reduces the vibration and deviation caused by drilling and ensures the quality of drilling.

[0014] Preferably, the two hydraulic rods are symmetrically arranged, and the two hydraulic rods are respectively distributed below the reaming drill bit and the hole-opening drill bit. A flexible extrusion pad is sleeved on the top of the hydraulic rod. When the hydraulic rod on one side is extended and the hydraulic rod on the other side is shortened, the upper center platform can be tilted. After tilting, the two hydraulic rods still maintain support, ensuring the stability of the center platform. The flexible extrusion pad can increase the contact area between the top of the hydraulic rod and the center platform, thereby improving the support stability.

[0015] Preferably, two spiral hoses 1 for transmitting lubricating oil are fixedly connected between the top surface of the base and the bottom surface of the center table, and two spiral hoses 2 for transmitting cooling water are fixedly connected between the top surface of the base and the bottom surface of the adjustment disk. A docking seat is fixedly connected to the outer side of the base, and the docking seat is connected to both spiral hose 1 and spiral hose 2, and connected to external pipes through the docking seat, and then the lubricating oil and water are respectively transmitted to the nozzle and the cooling nozzle through spiral hose 1 and spiral hose 2. Spiral hose 1 and spiral hose 2 can be pulled to a certain extent to adapt to the position change of the center table and the adjustment disk. It should be noted that the rotation of the adjustment disk can only be a fixed half-circle rotation. After rotating half a circle clockwise, it needs to be rotated half a circle counterclockwise. Not only can it rotate more than half a circle in the same direction, so as to maintain the normal use of spiral hose 2.

[0016] Preferably, the adjustment disk is arranged in a ring shape, and a reduction motor is fixedly connected to the interior of the center table. The middle part of the outer side of the center table is rotatably connected to two symmetrical and horizontally arranged transmission gears. The output end of the reduction motor is fixedly connected to one of the transmission gears. A card rack is fixedly connected to the inner ring arm of the adjustment disk, and the transmission gear is meshed with the card rack. The reduction motor drives the transmission gear to rotate, and the transmission gear drives the adjustment disk to rotate through the card rack, thereby realizing the function of adjusting the position of the hole-opening drill bit and the reaming drill bit. The two transmission gears are arranged to ensure the stable rotation of the adjustment disk.

[0017] The beneficial effects of the present invention are as follows: 1. The automated drilling and milling device for valve plate processing described in the present invention realizes highly automated valve plate drilling work through the arrangement of a fixing table, a vacuum suction cup, a hole-opening drill bit and a reaming drill bit. The handling, fixing and transferring of the workpiece to be processed are all operated or assisted by a vacuum suction cup, so that the fixing and releasing processes of the workpiece to be processed are fast and convenient. The drilling method adopts double-head drilling, which not only reduces the required length of the hole-opening drill bit and the reaming drill bit, but also improves the drilling stability. When a longer hole-opening drill bit is used for drilling, the drilling end will not be enough due to the farther driving source. At the same time, a reaming step is added in the hole-opening process, and the efficiency is also improved compared with reaming after all the holes are opened.

[0018] 2. The automated drilling and milling device for valve plate processing described in the present invention tilts the entire adjustment disk and the center table by pushing up the electric telescopic rod, so that the hole in the hole-drilling process is tilted downward, so that when the drill bit moves out of the hole, the iron filings inside can slide outward under the action of gravity; a specific scheme can be that when drilling half of the hole for the first time, the hole position of the workpiece to be processed is tilted downward, and then the hole-drilling drill bit rotates half a circle to drill the other half, and at this time the reaming drill bit reams the hole tilted downward, because the iron filings in the hole need to be cleaned more during the reaming process, and because the reaming process is a fine grinding process, compared with the drilling process, the iron filings need to be cleaned more during the reaming process, and when the reaming drill bit rotates to the other side for reaming, since the hole has been penetrated at this time, the generated debris can be directly discharged from the other end, thereby ensuring the quality of the hole after reaming. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 is a three-dimensional diagram of the adjustment disk of the present invention; Figure 3 It is a three-dimensional diagram of the adjustment disk and the center table of the present invention; Figure 4 is a three-dimensional diagram of the base of the present invention; Figure 5 is a three-dimensional diagram of the center platform of the present invention; In the figure: 1. Electric slide rail; 2. Electric telescopic rod; 3. Vacuum suction cup; 4. Adjustment plate; 5. Workpiece to be processed; 7. Rotating shaft; 8. Driving motor; 9. Screw nut mechanism; 10. Drill bit for hole opening; 12. Restraining plate; 13. Base; 14. Reaming drill bit; 15. Docking seat; 16. Cooling nozzle; 17. Center table; 18. Sinking trough; 19. Collecting hood; 20. Nozzle; 21. Fixed table; 23. Spiral hose 1; 24. Spiral hose 2; 25. Hydraulic rod; 26. Support seat; 27. Transmission gear; 28. Transmission pipe. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figures 1 to 5As shown, an automatic drilling and milling device for valve plate processing according to an embodiment of the present invention comprises a disc-shaped center table 17, a fixed table 21 for placing a workpiece 5 to be processed is fixedly connected to the top of the center table 17, a rotatable adjustment disk 4 is rotatably clamped on the outer side of the center table 17, two symmetrically arranged drive motors 8 are arranged on the top surface of the adjustment disk 4, a hole-opening drill bit 10 and a reaming drill bit 14 are respectively fixedly connected to the output ends of the two drive motors 8, a screw nut mechanism 9 for driving the drive motor 8 to translate is arranged below the drive motor 8, and a vacuum suction cup 3 that can be lifted and translated is arranged above the workpiece 5 to be processed; Through the setting of the fixed table 21, the middle part of the top surface of the workpiece 5 to be processed is first adsorbed and fixed by the movable vacuum suction cup 3, and then the workpiece 5 to be processed is lifted up and translated to the top of the fixed table 21, and the vacuum suction cup 3 and the workpiece 5 to be processed are lowered together, so that the bottom surface of the workpiece 5 to be processed is in contact with the fixed table 21, and at the same time, the vacuum suction cup 3 does not release the negative pressure, and increases the downward pressure to firmly fix the workpiece 5 to be processed on the surface of the fixed table 21. The surface of the fixed table 21 is provided with a groove adapted to the surface shape of the workpiece 5 to be processed, so as to ensure the fixing stability of the workpiece 5 to be processed, and then the drilling process is carried out; first, the screw nut mechanism 9 is used to control the driving motor 8 connected to the hole drilling bit 10 to translate, and the driving motor 8 drives the hole drilling bit 10 rotates, and the hole-drilling drill bit 10 drills into the interior of the workpiece 5 to be processed from one end to continuously perform the hole-drilling work. During the hole-drilling process, the screw-nut mechanism 9 needs to periodically translate the hole-drilling drill bit 10 outward to clean up the iron filings accumulated in the hole and improve the hole-drilling quality. The lengths of the hole-drilling drill bit 10 and the reaming drill bit 14 are both longer than the radius of the workpiece 5 to be processed. After the hole-drilling drill bit 10 has excavated a hole of more than half the length at one end of the workpiece 5 to be processed, the hole-drilling drill bit 10 is first withdrawn, and the adjusting disk 4 is controlled to rotate half a circle. At this time, the hole-drilling drill bit 10 comes to the other side of the workpiece 5 to be processed, and the reaming drill bit 14 comes to the original position of the hole-drilling drill bit 10. At this time, the two screw-nut mechanisms 9 translate close to the workpiece 5 to be processed at the same time. The drilling bit 10 and the reaming bit 14 rotate simultaneously, the drilling bit 10 performs drilling work on the workpiece 5 to be processed from the other end, and the reaming bit 14 performs grinding and reaming work on the position where the workpiece 5 has been drilled. During the reaming process, the reaming bit 14 also needs to maintain a rhythm of phased withdrawal from the hole like the drilling bit 10, so as to clean up the iron filings generated by reaming. The moving speed of the reaming bit 14 needs to be less than the translation speed of the drilling bit 10. The drilling bit 10 completes the drilling work first, and the two will not touch each other. After the drilling and reaming of one side are completed, the adjusting disk 4 is rotated to allow the reaming bit 14 to rotate to the other end to ream the hole that has not been reamed. Finally, the reaming bit 14 withdraws from the workpiece 5 to be processed, and the vacuum suction cup 3 The processed workpiece is transferred, and a new workpiece 5 to be processed is placed in for the next round of processing; through this arrangement, a highly automated valve plate drilling work is achieved, and the handling, fixing and transferring of the workpiece 5 to be processed are all operated or assisted by a vacuum suction cup 3, so that the fixing and releasing processes of the workpiece 5 to be processed are fast and convenient, and the punching method adopts double-head punching, which not only reduces the required length of the hole-opening drill bit 10 and the reaming drill bit 14, but also improves the drilling stability, because when the longer hole-opening drill bit 10 is used for drilling, the drilling end will not be enough due to the farther driving source; at the same time, the reaming step is added in the hole-opening process, and the efficiency is also improved compared with reaming after all the holes are opened.

[0023] The middle part of the bottom surface of the center platform 17 protrudes outwards, and a base 13 is arranged below the center platform 17. A support seat 26 is fixedly connected to the top of the base 13. The support seat 26 is rotatably connected to the protruding part of the bottom of the center platform 17. A hydraulic rod 25 for adjusting the tilt direction of the center platform 17 is fixedly connected to the top surface of the base 13. During operation, since the hole needs to be drilled to a deeper depth, the iron filings generated in the drilling process need to be discharged in time. During the drilling process, the hydraulic rod 25 is pushed up to make the entire adjustment disk 4 and the center table 17 tilted, so that the hole in the drilling process is tilted downward, so that when the drill bit moves out of the hole, the iron filings inside can slide out under the action of gravity; a specific solution can be that when drilling half of the hole for the first time, the hole position of the workpiece 5 to be processed is tilted downward, and then the drilling drill bit 10 rotates half a circle to drill the other half, at this time the reaming drill bit 14 reams the hole tilted downward, because the iron filings in the hole need to be cleaned more during the reaming process, because the reaming process is a fine grinding process, so compared with drilling, reaming needs to clean iron filings more, and when the reaming drill bit 14 rotates to the other side for reaming, since the hole has been penetrated at this time, the debris generated can be directly discharged from the other end, thereby ensuring the quality of the hole after reaming.

[0024] The top of the adjustment plate 4 is fixedly connected with two symmetrically arranged cooling nozzles 16, the output ends of the cooling nozzles 16 face the punching end of the workpiece 5 to be processed, and the top surface of the center table 17 is also provided with two nozzles 20, and the nozzles 20 are used to spray lubricating oil; During operation, in order to prevent the temperature of the hole-drilling drill bit 10 from being too high, water is continuously sprayed toward the end of the workpiece 5 to be processed through the cooling nozzle 16. The water flow contacts the hole-drilling drill bit 10, which can effectively reduce the temperature of the hole-drilling drill bit 10. At the same time, during the reaming process, it is necessary to apply a proper amount of lubricating oil to the surface of the hole-drilling drill bit 14. On the one hand, it can reduce friction and reduce the temperature of the hole-drilling drill bit 14. At the same time, applying lubricating oil can also improve the dimensional accuracy and surface quality of the hole, making the processed hole smoother and effectively discharging chips. It should be noted that after each processing is completed, the surface of the hole-drilling drill bit 14 should be rinsed with cleaning water, because some debris will stick to its surface due to the lubricating oil, affecting the next work.

[0025] A vertically arranged electric telescopic rod 2 is arranged above the vacuum suction cup 3, the bottom of the electric telescopic rod 2 is rotatably connected to the vacuum suction cup 3 via a rotating shaft 7, and an electric slide rail 1 for driving the electric telescopic rod 2 to translate is arranged on the top of the electric telescopic rod 2; During operation, the lifting and lowering of the vacuum suction cup 3 is controlled by the extension and shortening of the electric telescopic rod 2, and the left and right translation of the electric telescopic rod 2 and the vacuum suction cup 3 is controlled by the electric slide rail 1. The setting of the rotating shaft 7 allows the workpiece 5 to be tilted when it is set, and the vacuum suction cup 3 can also be tilted synchronously, which does not hinder the process of pressing down and fixing the workpiece 5 to be processed.

[0026] The top surface of the adjustment plate 4 is provided with two sinking grooves 18 for mounting the screw nut mechanism 9, the cooling nozzle 16 is located on one side of the screw nut mechanism 9, and the two screw nut mechanisms 9 are located on the same horizontal line; During operation, the forward drilling work of the two drive motors 8 is controlled by the screw nut mechanism 9. The two screw nut mechanisms 9 are set on the same horizontal line to ensure that the drilling process and the reaming process can be carried out simultaneously. The cooling nozzle 16 is positioned on the outside and will not hinder the movement of the drive motor 8.

[0027] Two symmetrically arranged collecting covers 19 are fixedly connected to the top surface of the center platform 17 on the outside. The height of the collecting covers 19 is lower than the horizontal height of the reaming drill bit 14 and the hole-opening drill bit 10. The spray head 20 is fixedly connected to the top of the collecting cover 19 and is located directly below the reaming drill bit 14 and the hole-opening drill bit 10. The bottom of the collecting cover 19 is fixedly connected to a transmission pipe 28 connected to the bottom of the center platform 17. During operation, in order to collect the iron chips generated, two collecting hoods 19 are set at both ends of the workpiece 5 to be processed. When the workpiece 5 to be processed is tilted to both sides, the collecting hood 19 on the other side will catch the iron chips carried by the cooling water, and will not cause the problem of iron chips splashing outside the device. The nozzle 20 is located on the top of the collecting hood 19, close to the reaming drill bit 14, so that the lubricating oil sprayed from the nozzle 20 can effectively adhere to the surface of the reaming drill bit 14, and the transmission pipe 28 is used to discharge the iron chips downward.

[0028] Four binding plates 12 are fixedly connected to the top surface of the center platform 17. The binding plates 12 are arranged in an arc shape. The collecting cover 19 is fixedly connected between two adjacent binding plates 12. During operation, the setting of the restraining plate 12 allows the workpiece 5 to be processed placed on the fixed table 21 to be wrapped by the restraining plate 12 on all sides, so that the workpiece 5 to be processed is restricted up, down, left and right, which greatly reduces the vibration and deviation caused by drilling and ensures the quality of drilling.

[0029] The two hydraulic rods 25 are symmetrically arranged, and the two hydraulic rods 25 are respectively distributed below the reaming drill bit 14 and the hole-opening drill bit 10, and the top of the hydraulic rod 25 is sleeved with a flexible extrusion pad; During operation, the hydraulic rod 25 on one side is extended and the hydraulic rod 25 on the other side is shortened, so that the upper center platform 17 can be tilted. After tilting, the two hydraulic rods 25 still maintain support, ensuring the stability of the center platform 17. The flexible extrusion pad can increase the contact area between the top of the hydraulic rod 25 and the center platform 17, thereby improving the support stability.

[0030] Two spiral hoses 23 for transmitting lubricating oil are fixedly connected between the top surface of the base 13 and the bottom surface of the center platform 17, and two spiral hoses 24 for transmitting cooling water are fixedly connected between the top surface of the base 13 and the bottom surface of the adjustment plate 4. A docking seat 15 is fixedly connected to the outer side of the base 13, and the docking seat 15 is connected to both the spiral hose 23 and the spiral hose 24; During operation, the docking seat 15 is used to connect with the external pipeline, and then the lubricating oil and water are respectively transferred to the nozzle 20 and the cooling nozzle 16 through the spiral hose 1 23 and the spiral hose 2 24. The spiral hose 1 23 and the spiral hose 2 24 can be pulled to a certain extent to adapt to the position changes of the center table 17 and the adjustment disk 4. It should be noted that the rotation of the adjustment disk 4 can only be a fixed half-circle rotation. After rotating half a circle clockwise, it needs to be rotated half a circle counterclockwise. Not only can it rotate in the same direction for more than half a circle, but it can also maintain the normal use of the spiral hose 24.

[0031] The adjustment disk 4 is arranged in an annular shape, a reduction motor is fixedly connected to the interior of the center platform 17, and two symmetrical and horizontally arranged transmission gears 27 are rotatably connected to the middle of the outer side of the center platform 17, and the output end of the reduction motor is fixedly connected to one of the transmission gears 27, and a rack is fixedly connected to the inner ring arm of the adjustment disk 4, and the transmission gear 27 is meshed with the rack; During operation, the transmission gear 27 is driven to rotate by the reduction motor, and the transmission gear 27 drives the adjustment disk 4 to rotate through the card rack, thereby realizing the function of adjusting the position of the hole drilling bit 10 and the reaming drill bit 14. The two transmission gears 27 are set to ensure the stable rotation of the adjustment disk 4.

[0032] During operation, through the setting of the fixed table 21, the middle part of the top surface of the workpiece 5 to be processed is first adsorbed and fixed by the movable vacuum suction cup 3, and then the workpiece 5 to be processed is lifted up and translated to the top of the fixed table 21, and the vacuum suction cup 3 and the workpiece 5 to be processed are lowered together, so that the bottom surface of the workpiece 5 to be processed is in contact with the fixed table 21, and at the same time, the vacuum suction cup 3 does not release the negative pressure, and increases the downward pressure to firmly fix the workpiece 5 to be processed on the surface of the fixed table 21. The surface of the fixed table 21 is provided with a groove that is adapted to the surface shape of the workpiece 5 to be processed, so as to ensure the fixing stability of the workpiece 5 to be processed, and then the drilling process is carried out; first, the screw nut mechanism 9 is used to control the driving motor 8 connected to the hole drill 10 to translate, and the driving motor 8 drives the opening drill 10 The hole drill 10 rotates, and the hole drilling bit 10 drills into the interior of the workpiece 5 to be processed from one end to continuously perform the hole drilling work. During the hole drilling process, the screw nut mechanism 9 needs to periodically translate the hole drilling bit 10 outward to clean up the iron filings accumulated in the hole and improve the hole drilling quality. The lengths of the hole drilling bit 10 and the reaming drill bit 14 are both longer than the radius of the workpiece 5 to be processed. After the hole drilling bit 10 has excavated a hole of more than half the length at one end of the workpiece 5 to be processed, the hole drilling bit 10 is first withdrawn, and the adjustment disk 4 is controlled to rotate half a circle. At this time, the hole drilling bit 10 comes to the other side of the workpiece 5 to be processed, and the reaming drill bit 14 comes to the original position of the hole drilling bit 10. At this time, the two screw nut mechanisms 9 are translated close to the workpiece to be processed at the same time. 5. The drilling drill 10 and the reaming drill 14 rotate simultaneously. The drilling drill 10 performs drilling work on the workpiece 5 to be processed from the other end, and the reaming drill 14 performs grinding and reaming work on the position where the workpiece 5 has been drilled. During the reaming process, the reaming drill 14 also needs to maintain a rhythm of phased withdrawal from the hole like the drilling drill 10 to clean up the iron filings generated by reaming. The moving speed of the reaming drill 14 needs to be less than the translation speed of the drilling drill 10. The drilling drill 10 completes the drilling work first, and the two will not touch each other. After the drilling and reaming of one side are completed, the adjusting disk 4 is rotated to allow the reaming drill 14 to rotate to the other end to ream the hole that has not been reamed. Finally, the reaming drill 14 withdraws from the workpiece 5 to be processed, and the vacuum suction cup 3 transfers the processed workpiece and puts in a new workpiece 5 to be processed for the next round of processing; through this arrangement, a highly automated valve plate drilling work is realized, and the handling, fixing and transferring of the workpiece 5 to be processed are all operated or assisted by a vacuum suction cup 3, so that the fixing and releasing processes of the workpiece 5 to be processed are fast and convenient, and the drilling method adopts double-head drilling, which not only reduces the length required for the hole-opening drill 10 and the reaming drill 14, but also improves the drilling stability, because when the longer hole-opening drill 10 is used for drilling, the drilling end will not be enough due to the distance of the driving source; at the same time, the reaming step is added in the hole-opening process, and the efficiency is also improved compared with reaming after all the holes are opened; Since the depth of the hole to be drilled is deep, it is necessary to discharge the iron chips generated in the drilling process in time. During the drilling process, the hydraulic rod 25 is pushed up to make the entire adjustment plate 4 and the center table 17 tilted, so that the hole in the drilling process is tilted downward, so that when the drill bit moves out of the hole, the iron chips inside can slide out under the action of gravity; a specific solution can be that when drilling half of the hole for the first time, the hole position of the workpiece 5 to be processed is tilted downward, and then the drilling drill 10 rotates half a circle to drill the other half, at this time, the reaming drill 14 reams the hole tilted downward, because the iron chips in the hole need to be cleaned more during the reaming process, because the reaming process is a fine grinding process, so compared with drilling, reaming needs to clean iron chips more, and when the reaming drill 14 rotates to the other side for reaming, since the hole has been penetrated at this time, the generated debris can be directly discharged from the other end, thereby ensuring the quality of the hole after reaming; In order to prevent the temperature of the drilling bit 10 from being too high, water is continuously sprayed toward the end of the workpiece 5 to be processed through the cooling nozzle 16. The water flow contacts the drilling bit 10, which can effectively reduce the temperature of the drilling bit 10. At the same time, during the reaming process, it is necessary to apply a proper amount of lubricating oil on the surface of the drilling bit 14. On the one hand, it can reduce the friction and reduce the temperature of the drilling bit 14. At the same time, applying lubricating oil can also improve the dimensional accuracy and surface quality of the hole, making the processed hole smoother and effectively discharging chips. It should be noted that after each processing is completed, the surface of the drilling bit 14 needs to be rinsed with cleaning water, because some chips will stick to its surface due to the lubricating oil, affecting the next work; The extension and contraction of the electric telescopic rod 2 controls the lifting and lowering of the vacuum suction cup 3, and the electric slide rail 1 controls the left and right translation of the electric telescopic rod 2 and the vacuum suction cup 3. The setting of the rotating shaft 7 allows the workpiece 5 to be tilted, and the vacuum suction cup 3 can also be tilted synchronously, without hindering the process of pressing down and fixing the workpiece 5 to be processed; The forward drilling work of the two drive motors 8 is controlled by the screw nut mechanism 9. The two screw nut mechanisms 9 are arranged on the same horizontal line, which ensures that the drilling process and the reaming process can be carried out synchronously. The cooling nozzle 16 is located on the outside and will not hinder the movement of the drive motor 8. In order to collect the generated iron chips, two collecting hoods 19 are set at both ends of the workpiece 5 to be processed. When the workpiece 5 to be processed is tilted to both sides, the collecting hood 19 on the other side will catch the iron chips carried by the cooling water, and will not cause the problem of iron chips splashing outside the device. The nozzle 20 is located on the top of the collecting hood 19, close to the reaming drill bit 14, so that the lubricating oil sprayed from the nozzle 20 can effectively adhere to the surface of the reaming drill bit 14; The setting of the restraining plate 12 allows the workpiece 5 to be processed placed on the fixed table 21 to be surrounded by the restraining plate 12 on all sides, so that the workpiece 5 to be processed is restricted up, down, left, and right, which greatly reduces the vibration and deviation caused by drilling, and ensures the quality of drilling; The hydraulic rod 25 on one side is extended and the hydraulic rod 25 on the other side is shortened, so that the upper center platform 17 can be tilted. After tilting, the two hydraulic rods 25 still maintain support, ensuring the stability of the center platform 17. The flexible extrusion pad can increase the contact area between the top of the hydraulic rod 25 and the center platform 17, thereby improving the support stability. The butt socket 15 is connected with the external pipeline, and then the lubricating oil and water are respectively transferred to the nozzle 20 and the cooling nozzle 16 through the spiral hose 1 23 and the spiral hose 2 24. The spiral hose 1 23 and the spiral hose 2 24 can be pulled to a certain extent to adapt to the position change of the center table 17 and the adjustment disk 4. It should be noted that the rotation of the adjustment disk 4 can only be a fixed half-circle rotation. After rotating half a circle clockwise, it needs to be rotated half a circle counterclockwise. Not only does it rotate more than half a circle in the same direction, so as to maintain the normal use of the spiral hose 2 24; The transmission gear 27 is driven to rotate by the reduction motor, and the transmission gear 27 drives the adjustment disk 4 to rotate through the rack, thereby realizing the function of adjusting the positions of the hole-opening drill bit 10 and the reaming drill bit 14. The two transmission gears 27 are provided to ensure the stable rotation of the adjustment disk 4.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automated drilling and milling device for valve plate processing, characterized in that: The invention comprises a disc-shaped center table (17), the top of which is fixedly connected to a fixed table (21) for placing a workpiece (5) to be processed, the outer side of the center table (17) is rotatably clamped to a rotatable adjustment disk (4), the top surface of the adjustment disk (4) is provided with two symmetrically arranged drive motors (8), the output ends of the two drive motors (8) are respectively fixedly connected to a hole-opening drill bit (10) and a reaming drill bit (14), a screw nut mechanism (9) for driving the drive motor (8) to translate is provided below the drive motor (8), and a vacuum suction cup (3) capable of lifting and translating is provided above the workpiece (5) to be processed.

2. The valve plate machining automated drilling and milling device according to claim 1, characterized in that: The middle part of the bottom surface of the center platform (17) protrudes outwards, a base (13) is arranged below the center platform (17), a support seat (26) is fixedly connected to the top of the base (13), the support seat (26) is rotatably connected to the protruding part of the bottom of the center platform (17), and a hydraulic rod (25) for adjusting the tilt direction of the center platform (17) is fixedly connected to the top surface of the base (13).

3. The valve plate machining automated drilling and milling device according to claim 2, characterized in that: The top of the adjustment plate (4) is fixedly connected to two symmetrically arranged cooling nozzles (16), the output ends of the cooling nozzles (16) facing the punching end of the workpiece (5) to be processed, and the top surface of the center table (17) is also provided with two nozzles (20), the nozzles (20) being used to spray lubricating oil.

4. The valve plate machining automated drilling and milling device according to claim 3, characterized in that: A vertically arranged electric telescopic rod (2) is arranged above the vacuum suction cup (3); the bottom of the electric telescopic rod (2) is rotatably connected to the vacuum suction cup (3) via a rotating shaft (7); and an electric slide rail (1) for driving the electric telescopic rod (2) to move in translation is arranged at the top of the electric telescopic rod (2).

5. The valve plate machining automated drilling and milling device according to claim 4, characterized in that: Two sinking grooves (18) for mounting the screw nut mechanism (9) are provided on the top surface of the adjustment plate (4), the cooling nozzle (16) is located on one side of the screw nut mechanism (9), and the two screw nut mechanisms (9) are located on the same horizontal line.

6. The valve plate machining automated drilling and milling device according to claim 5, characterized in that: Two symmetrically arranged collecting covers (19) are fixedly connected to the outer side of the top surface of the center platform (17); the height of the collecting covers (19) is lower than the horizontal height of the reaming drill bit (14) and the hole-opening drill bit (10); the spray head (20) is fixedly connected to the top of the collecting cover (19), and the spray head (20) is located directly below the reaming drill bit (14) and the hole-opening drill bit (10); and the bottom of the collecting cover (19) is fixedly connected to a transmission pipe (28) connected to the bottom of the center platform (17).

7. The valve plate machining automated drilling and milling device according to claim 6, characterized in that: Four binding plates (12) are fixedly connected to the top surface of the central platform (17), the binding plates (12) are arranged in an arc shape, and the collecting cover (19) is fixedly connected between two adjacent binding plates (12).

8. The valve plate machining automated drilling and milling device according to claim 7, characterized in that: The two hydraulic rods (25) are symmetrically arranged, and the two hydraulic rods (25) are respectively distributed below the reaming drill bit (14) and the hole-opening drill bit (10), and a flexible extrusion pad is sleeved on the top of the hydraulic rod (25).

9. The valve plate machining automated drilling and milling device according to claim 8, characterized in that: Two spiral hoses (23) for transmitting lubricating oil are fixedly connected between the top surface of the base (13) and the bottom surface of the center platform (17), and two spiral hoses (24) for transmitting cooling water are fixedly connected between the top surface of the base (13) and the bottom surface of the adjustment plate (4). A docking seat (15) is fixedly connected to the outer side of the base (13), and the docking seat (15) is connected to both the spiral hose (23) and the spiral hose (24).

10. The valve plate machining automated drilling and milling device according to claim 9, characterized in that: The adjustment disk (4) is arranged in an annular shape, a reduction motor is fixedly connected to the interior of the center platform (17), and two symmetrical and horizontally arranged transmission gears (27) are rotatably connected to the middle of the outer side of the center platform (17), the output end of the reduction motor is fixedly connected to one of the transmission gears (27), and a rack is fixedly connected to the inner ring arm of the adjustment disk (4), and the transmission gear (27) is meshed with the rack.

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