Numerical control turning machine tool and ball valve element machining process

Abstract

The invention relates to the technical field of numerical control turning, and discloses a numerical control turning machine tool and a ball valve element machining process. The ball valve element is conveyed to the front portion of the lifting table through the conveying system and stops moving, the clamping piece deflects out of the through opening of the machine body and abuts against the lifting table to press the lifting table downwards, the conveying system transfers one ball valve element to the lifting table, and after the ball valve element is moved to the lifting table, the clamping piece clamps and fixes the ball valve element. When the ball valve element is machined, the ball valve element is driven to deflect to the machining position, the turning head carries out turning machining on the ball valve element on the clamping piece, the machined ball valve element is conveyed back to the lifting table, and then the conveying system is used for moving away the machined ball valve element, so that the mode that a numerical control turning machine tool is manually assisted to conduct semi-automatic machining is replaced, and the machining efficiency is improved. And the fixing error existing when the valve element of the ball valve is manually placed is eliminated, the influence of the error on the machining precision is avoided, the processing efficiency of equipment is improved, and the processing precision of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control turning, and particularly to a numerical control turning machine tool and a processing technology for a ball valve spool. Background Art

[0002] In the field of machining, numerical control machine tools play an important role and can achieve high-precision machining of workpieces to meet the needs of various industrial productions. Among them, numerical control lathes have a wide range of applications, providing efficient production and precise quality control for the turning requirements of parts.

[0003] In existing numerical control turning machine tools, such as Chinese Patent Application CN119609179A, when the user pulls the lifting frame upward, the movable seat and the push plate can automatically move through the elastic forces of the first spring and the second spring, so that the pallet can be lifted and the worm workpiece can be pushed out onto the pallet. By moving the movable base, one end of the worm workpiece can be clamped on the three-jaw chuck assembly. When the center drill assembly positions the other end of the worm workpiece, the movable seat and the push plate can be pushed backward to compress the first spring and the second spring again, so that the movable seat and the push plate can continue to work in the next cycle. This assembly and positioning method for the worm workpiece is simple and convenient, without the need for the user to perform too many complex operations, improving the processing efficiency of the worm.

[0004] However, there are still the following problems: Although the current numerical control lathes have high processing efficiency and high processing accuracy, the current mainstream numerical control lathes still work semi-automatically and require workers to assist in fixing the parts in the equipment before processing the parts. Limited by the speed of workers placing the parts and the accuracy of the fixed positions for placing the parts, the processing efficiency of the numerical control lathes cannot be further improved. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a numerical control turning machine tool and a processing technology for a ball valve spool, which have the advantages of replacing the semi-automatic processing method assisted by manual operation for the numerical control turning machine tool, eliminating the fixed errors existing when manually placing the ball valve spool, avoiding the influence of errors on the processing accuracy, improving the processing efficiency of the equipment, and improving the processing accuracy of the equipment, etc., and solving the problem that although the current numerical control lathes have high processing efficiency and high processing accuracy, the current mainstream numerical control lathes still work semi-automatically and require workers to assist in fixing the parts in the equipment before processing the parts. Limited by the speed of workers placing the parts and the accuracy of the fixed positions for placing the parts, the processing efficiency of the numerical control lathes cannot be further improved.

[0006] To achieve the above object, the present invention provides the following technical solution: a numerically controlled turning machine tool, including a machine body, a turning mechanism arranged on the machine body, and a conveying mechanism arranged on the machine body. The turning mechanism includes a turning head, and the turning head is arranged inside the machine body. The turning head moves inside the machine body to perform turning processing on the ball valve core. The conveying mechanism includes a clamping member and a lifting table. The clamping member is arranged inside the machine body. The clamping member clamps and fixes the ball valve core in two ways: single-end grasping and double-end clamping. The clamping member deflects to the processing position inside the machine body or the ball valve core conveying system outside the machine body. There is a lifting table beside the machine body. The lifting table is arranged on the ball valve core conveying system and is located on the deflection trajectory of the clamping member. The clamping member presses down the lifting table. The lifting table carries a ball valve core on the conveying system. The clamping member clamps the ball valve core on the lifting table and transfers it to the processing position.

[0007] Preferably, the turning mechanism further includes a slide rail. The slide rail is fixedly installed on one side of the bottom end inside the machine body. A moving frame is slidably matched with the slide rail. A linkage member is fixedly installed at the bottom end of the moving frame. A screw rod is rotatably matched with the bottom end of the machine body. The screw rod penetrates through the linkage member, and the screw rod is in threaded cooperation with the linkage member. The length of the screw rod is the same as that of the slide rail. The screw rod is located below the slide rail. A stepping motor is fixedly installed on one side of the bottom end inside the machine body. The stepping motor is power-connected to the screw rod. The turning head is arranged on the moving frame.

[0008] Preferably, there is an opening on one side of the machine body. The opening of the machine body is located on the deflection trajectory of the clamping member. A sliding door is slidably matched with the machine body. The size of the sliding door is adapted to the size of the opening of the machine body. The opening of the machine body is located on the moving trajectory of the sliding door. A hydraulic rod is fixedly installed inside the machine body. The extending rod of the hydraulic rod penetrates through the wall surface of the machine body. The extending rod of the hydraulic rod is fixedly connected to the sliding door. The telescopic length of the hydraulic rod is adapted to the length of the moving trajectory of the sliding door.

[0009] Preferably, an auxiliary member is arranged inside the machine body. The auxiliary member is adjacent to the turning head and is used to provide auxiliary help for turning processing.

[0010] Preferably, the conveying mechanism further includes a bracket. The bracket is fixedly installed on the other side of the bottom end inside the machine body. The bracket is adjacent to the opening of the machine body. A turntable is rotatably matched with the top end of the bracket. A rotating shaft cylinder is fixedly installed on the bracket. The rotating shaft cylinder is power-connected to the turntable. The deflection angle range of the turntable is the same as the deflection angle range of the clamping member.

[0011] Preferably, a gear disk is rotatably fitted to the top end of the turntable, a power gear is rotatably fitted to the turntable, the power gear meshes with the gear disk, the size of the gear disk is larger than that of the power gear, a servo motor is fixedly installed on the turntable, and the servo motor is power-connected to the power gear.

[0012] Preferably, a first rotating arm is rotatably fitted to one side of the top end of the gear disk, the first rotating arm extends to the machining position inside the machine body, a first motor is fixedly installed on one side of the top end of the gear disk, the first motor is power-connected to the first rotating arm, a clamping member is arranged at the top end of the first rotating arm, a hydraulic cylinder is fixedly installed at the top end of the first rotating arm, the hydraulic cylinder is power-connected to the clamping member, and the hydraulic cylinder drives the clamping member to open and close to clamp and fix one end of the ball valve core.

[0013] Preferably, a second rotating arm is rotatably fitted to the other side of the top end of the gear disk, the second rotating arm extends to the machining position inside the machine body, a second motor is fixedly installed on the other side of the top end of the gear disk, the second motor is power-connected to the second rotating arm, a pushing member is arranged at the top end of the second rotating arm, a telescopic cylinder is fixedly installed at the top end of the second rotating arm, the telescopic cylinder is power-connected to the pushing member, the telescopic cylinder drives the pushing member to cooperate with the clamping member to clamp the ball valve core in the middle, the clamping member and the pushing member are both located between the first rotating arm and the second rotating arm, and the clamping member includes the clamping member and the pushing member.

[0014] Preferably, a fixing frame is arranged beside the machine body, the fixing frame is arranged adjacent in two parts, a plurality of conveying rollers are rotatably fitted on the fixing frame, conveyor belts are tensioned on the conveying rollers on each part of the fixing frame, the conveyor belts are all located between the two parts of the fixing frame, conveying motors are fixedly installed on both parts of the fixing frame, the conveying motors are power-connected to the conveying rollers, a lifting table is arranged between the conveyor belts on both sides, the lifting table is located above the conveyor belts, the lifting table is located on the deflection track of the clamping member, the lifting table is located on the deflection track of the pushing member, a spring telescopic rod is arranged beside the machine body, the spring telescopic rod is located directly below the lifting table, the extending rod of the spring telescopic rod is fixedly connected to the lifting table, and the conveying system of the ball valve core includes the conveyor belt.

[0015] A processing technology for a ball valve core uses the above-mentioned numerically controlled lathe and includes the following steps: S1: The conveying system of the ball valve core conveys the ball valve core to the conveyor belt, and the ball valve core stops moving on the conveyor belt before reaching the lifting table; S2: The clamping member deflects out from the through - opening of the machine body and presses against the lifting table to press down the lifting table. After the position height of the lifting table is lower than that of the conveyor belt, the conveyor belt transfers a ball valve spool to the lifting table. S3: After the ball valve spool is moved to the lifting table, the clamping member clamps and fixes the ball valve spool, and carries the ball valve spool to deflect to the machining position. S4: The turning head performs turning machining on the ball valve spool on the clamping member. S5: The processed ball valve spool is sent back to the lifting table, and the conveyor belt is used to remove the processed ball valve spool. At the same time, the next ball valve spool is moved to the lifting table.

[0016] Compared with the prior art, the present invention provides a numerically controlled turning machine tool, which has the following beneficial effects: 1. In this numerically controlled turning machine tool, the conveying system of the ball valve spool stops moving before conveying the ball valve spool to the lifting table. The clamping member deflects out from the through - opening of the machine body and presses against the lifting table to press down the lifting table. The conveying system transfers a ball valve spool to the lifting table. After the ball valve spool is moved to the lifting table, the clamping member clamps and fixes the ball valve spool, and carries the ball valve spool to deflect to the machining position. The turning head performs turning machining on the ball valve spool on the clamping member. The processed ball valve spool is sent back to the lifting table, and then the conveying system is used to remove the processed ball valve spool. At the same time, the next ball valve spool is moved to the lifting table. Thus, it replaces the way of semi - automated machining assisted by manual for the numerically controlled turning machine tool, eliminates the fixed error existing when manually placing the ball valve spool, avoids the influence of the error on the machining accuracy, improves the processing efficiency of the equipment, and improves the processing accuracy of the equipment.

[0017] 2. In this numerically controlled turning machine tool, through the settings of the first rotating arm, the second rotating arm, and the turntable, cooperating with the conveying system of the ball valve spool, the ball valve spool can automatically perform the processes of automatic loading, machining, and automatic unloading on the numerically controlled turning machine tool, improving the automation degree of the equipment and the processing efficiency of the turning machine tool.

[0018] 3. In this numerically controlled turning machine tool, through the settings of the grasping member and the pushing member, cooperating with the action of the gear disk on the end or side of the ball valve spool facing the turning head, the machining of the ball valve spool by the machine tool is comprehensive, and the function of the equipment will not be missing due to the addition of automation, improving the stability of the equipment operation and the applicability of the numerically controlled turning machine tool. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the numerically controlled turning machine tool of the present invention; Figure 2 It is a schematic diagram of the turning mechanism structure of the present invention; Figure 3 Schematic diagram of the structural distribution at the turning head of the present invention; Figure 4 Schematic diagram of the structure of the conveying mechanism of the present invention; Figure 5 Schematic diagram of the structural distribution at the bracket of the present invention; Figure 6 Schematic diagram of the structural distribution at the gear disc of the present invention; Figure 7 Schematic diagram of the structural distribution at the fixing bracket of the present invention; Figure 8 Schematic diagram of the structural distribution at the lifting table of the present invention.

[0020] In the figure: 1, machine body; 2, turning mechanism; 21, slide rail; 22, moving frame; 23, linkage; 24, screw; 25, stepper motor; 26, turning head; 27, sliding door; 28, hydraulic rod; 29, auxiliary part; 3, conveying mechanism; 3001, clamping part; 31, bracket; 32, turntable; 33, rotating shaft cylinder; 34, gear disc; 35, power gear; 36, servo motor; 37, first rotating arm; 38, first motor; 39, gripping part; 310, hydraulic cylinder; 311, second rotating arm; 312, second motor; 313, pushing part; 314, telescopic cylinder; 315, fixing bracket; 316, conveyor roller; 317, conveyor belt; 318, conveying motor; 319, lifting table; 320, spring telescopic rod. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a numerical control turning machine tool and a processing process for a ball valve valve core.

[0023] Embodiment 1. In a typical embodiment of the present application, as Figure 1 shown, a numerical control turning machine tool includes a machine body 1, a turning mechanism 2 provided on the machine body 1, and a conveying mechanism 3 provided on the machine body 1. The turning mechanism 2 includes a turning head 26. The turning head 26 is provided inside the machine body 1, and the turning head 26 moves inside the machine body 1 to perform turning processing on the ball valve valve core; The conveying mechanism 3 includes a clamping member 3001 and a lifting table 319. The clamping member 3001 is arranged inside the machine body 1. The clamping member 3001 clamps the ball valve spool in single-end grasping and fixing or double-end clamping and fixing modes. The clamping member 3001 deflects to the processing position inside the machine body 1 or the ball valve spool conveying system outside the machine body 1. There is a lifting table 319 beside the machine body 1. The lifting table 319 is arranged on the ball valve spool conveying system. The lifting table 319 is located on the deflection track of the clamping member 3001. The clamping member 3001 presses down the lifting table 319. The lifting table 319 carries a ball valve spool on the conveying system. The clamping member 3001 clamps the ball valve spool on the lifting table 319 and transfers it to the processing position.

[0024] Furthermore, the conveying system is a prior art, specifically a conveying system for conveying the ball valve spool, such as representative conveying system structures like conveyor belts and conveyor rollers. There is no special setting for the conveying system in the present invention and will not be elaborated here.

[0025] When using the present invention: The ball valve spool is conveyed by the ball valve spool conveying system and stops moving in front of the lifting table 319. The clamping member 3001 deflects out from the through hole of the machine body 1 and presses against the lifting table 319 to press down the lifting table 319. The conveying system transfers a ball valve spool onto the lifting table 319. After the ball valve spool is moved onto the lifting table 319, the clamping member 3001 clamps and fixes the ball valve spool and carries the ball valve spool to deflect to the processing position. The turning head 26 performs turning processing on the ball valve spool on the clamping member 3001. The processed ball valve spool is sent back onto the lifting table 319, and then the processed ball valve spool is removed by the conveying system. At the same time, the next ball valve spool is moved onto the lifting table 319, thus replacing the semi-automatic processing method with manual assistance for the CNC lathe, eliminating the fixing error existing when manually placing the ball valve spool, avoiding the influence of the error on the processing accuracy, improving the processing efficiency of the equipment, and improving the processing accuracy of the equipment.

[0026] Embodiment 2, as Figures 2 - 3 shown, the difference from the above embodiment is that the turning mechanism 2 further includes a slide rail 21. The slide rail 21 is fixedly installed on one side of the inner bottom end of the machine body 1. A moving frame 22 is slidably fitted on the slide rail 21. A linkage member 23 is fixedly installed at the bottom end of the moving frame 22. A screw rod 24 is rotatably fitted at the bottom end of the machine body 1. The screw rod 24 passes through the linkage member 23. The screw rod 24 is in threaded cooperation with the linkage member 23. The length of the screw rod 24 is the same as that of the slide rail 21. The screw rod 24 is located below the slide rail 21. A stepping motor 25 is fixedly installed on one side of the inner bottom end of the machine body 1. The stepping motor 25 is power-connected to the screw rod 24. A turning head 26 is arranged on the moving frame 22.

[0027] Further, an opening is provided on one side of the body 1. The opening of the body 1 is located on the deflection track of the clamping member 3001. A sliding door 27 is slidably fitted on the body 1. The size of the sliding door 27 is adapted to the size of the opening of the body 1. The opening of the body 1 is located on the moving track of the sliding door 27. A hydraulic rod 28 is fixedly installed inside the body 1. The extending rod of the hydraulic rod 28 penetrates through the wall surface of the body 1. The extending rod of the hydraulic rod 28 is fixedly connected to the sliding door 27. The telescopic length of the hydraulic rod 28 is adapted to the length of the moving track of the sliding door 27.

[0028] Further, an auxiliary member 29 is provided inside the body 1. The auxiliary member 29 is adjacent to the turning head 26. The auxiliary member 29 is used to provide auxiliary assistance for turning processing.

[0029] Among them, before turning processing, the hydraulic rod 28 is started. The extending rod of the hydraulic rod 28 extends to drive the sliding door 27 to move, so that the sliding door 27 moves away from the opening of the body 1. The clamping member 3001 then deflects and turns out from the opening of the body 1. After clamping and fixing a ball valve spool on the conveying system, the clamping member 3001 then turns back to the processing position in the body 1. Then the sliding door 27 resets to close the opening of the body 1. The stepping motor 25 is started. The stepping motor 25 drives the screw rod 24 to rotate. The screw rod 24 drives the linkage member 23 to move. The linkage member 23 drives the moving frame 22 to move on the slide rail 21. The moving frame 22 drives the turning head 26 to move, so that the turning head 26 abuts against the ball valve spool for turning processing.

[0030] Example 3, as Figures 4 - 8 shown, the difference from the above embodiment is that the conveying mechanism 3 further includes a bracket 31. The bracket 31 is fixedly installed on the other side of the inner bottom end of the body 1. The bracket 31 is adjacent to the opening of the body 1. A turntable 32 is rotatably fitted at the top of the bracket 31. A rotating shaft cylinder 33 is fixedly installed on the bracket 31. The rotating shaft cylinder 33 is power-connected to the turntable 32. The deflection angle range of the turntable 32 is the same as the deflection angle range of the clamping member 3001.

[0031] Further, a gear disk 34 is rotatably fitted at the top of the turntable 32. A power gear 35 is rotatably fitted on the turntable 32. The power gear 35 meshes with the gear disk 34. The size of the gear disk 34 is larger than the size of the power gear 35. A servo motor 36 is fixedly installed on the turntable 32. The servo motor 36 is power-connected to the power gear 35.

[0032] Further, a first rotating arm 37 is rotatably fitted on one side of the top end of the gear disk 34. The first rotating arm 37 extends to the machining position inside the machine body 1. A first motor 38 is fixedly installed on one side of the top end of the gear disk 34. The first motor 38 is power-connected to the first rotating arm 37. A clamping member 39 is arranged at the top end of the first rotating arm 37. A hydraulic cylinder 310 is fixedly installed at the top end of the first rotating arm 37. The hydraulic cylinder 310 is power-connected to the clamping member 39. The hydraulic cylinder 310 drives the clamping member 39 to open and close to clamp and fix one end of the ball valve spool.

[0033] Further, a rotating mechanism is arranged beside the clamping member 39. The rotating mechanism drives the clamping member 39 to rotate to meet the requirements of turning processing. Specifically, the rotating mechanism can be a gear ring power transmission structure, that is, the clamping member 39 is connected to a bearing seat, a gear ring is fixed on the clamping member 39, and the gear ring is connected to a power source, so that the rotating mechanism drives the clamping member 39 to rotate to drive the ball valve spool to rotate. This structure is an existing technology in this field and will not be elaborated here.

[0034] Further, a second rotating arm 311 is rotatably fitted on the other side of the top end of the gear disk 34. The second rotating arm 311 extends to the machining position inside the machine body 1. A second motor 312 is fixedly installed on the other side of the top end of the gear disk 34. The second motor 312 is power-connected to the second rotating arm 311. A pushing member 313 is arranged at the top end of the second rotating arm 311. A telescopic cylinder 314 is fixedly installed at the top end of the second rotating arm 311. The telescopic cylinder 314 is power-connected to the pushing member 313. The telescopic cylinder 314 drives the pushing member 313 to cooperate with the clamping member 39 to clamp the ball valve spool in the middle. The clamping member 39 and the pushing member 313 are both located between the first rotating arm 37 and the second rotating arm 311. The clamping member 3001 includes the clamping member 39 and the pushing member 313.

[0035] Further, in turning processing, there is a situation where the ball valve spool needs to be translated. Therefore, a translation structure needs to be added to the clamping member 3001 in the equipment. Specifically, a translation structure can be arranged on the gear disk 34. Both the first rotating arm 37 and the second rotating arm 311 are arranged on the translation structure. Thus, during processing, the translation requirements of the ball valve spool can be met; the translation structure can be a rack and gear structure. The rack is slidably arranged on the gear disk 34. The first rotating arm 37 and the second rotating arm 311 are arranged on the rack. The gear meshes with the rack. The driving source drives the gear to rotate, and the translation function can be achieved.

[0036] Further, a fixing frame 315 is arranged beside the machine body 1. The fixing frame 315 is arranged adjacent in two parts. A plurality of conveyor rollers 316 are rotatably fitted on the fixing frame 315. A conveyor belt 317 is tensioned on each conveyor roller 316 on each part of the fixing frame 315. The conveyor belts 317 are all located between the two parts of the fixing frame 315. Conveyor motors 318 are fixedly installed on each of the two parts of the fixing frame 315. The conveyor motors 318 are power-connected to the conveyor rollers 316. A lifting platform 319 is arranged between the conveyor belts 317 on both sides. The lifting platform 319 is located above the conveyor belts 317. The lifting platform 319 is located on the deflection track of the gripper 39. The lifting platform 319 is located on the deflection track of the pusher 313. A spring telescopic rod 320 is arranged beside the machine body 1. The spring telescopic rod 320 is located directly below the lifting platform 319. The telescopic rod of the spring telescopic rod 320 is fixedly connected to the lifting platform 319. The conveying system of the ball valve spool includes the conveyor belt 317.

[0037] When moving the ball valve spool from the conveying system to the processing position, first use the conveying system to move the ball valve spool onto the conveyor belt 317. Start the conveying motor 318, and the conveying motor 318 drives the conveyor roller 316 to rotate. The conveyor roller 316 drives the conveyor belt 317 to rotate. The conveyor belt 317 moves the ball valve spool and stops moving it in front of the lifting table 319. Then start the rotating shaft cylinder 33, and the rotating shaft cylinder 33 drives the turntable 32 to deflect on the bracket 31, so that the turntable 32 drives the first rotating arm 37 and the second rotating arm 311 to rotate out from the through hole of the machine body 1. Start the first motor 38, and the first motor 38 drives the first rotating arm 37 to deflect, so that the first rotating arm 37 presses against the lifting table 319. The lifting table 319 presses the spring telescopic rod 320 to move downward, so that the lifting table 319 is located below the conveyor belt 317. The conveyor belt 317 continues to move a ball valve spool onto the lifting table 319, that is, in front of the clamping member 39. Then start the second motor 312, and the second motor 312 drives the second rotating arm 311 to deflect onto the lifting table 319. Start the hydraulic cylinder 310 and the telescopic cylinder 314. The telescopic cylinder 314 drives the pushing member 313 to push the ball valve spool onto the clamping member 39. The hydraulic cylinder 310 drives the clamping member 39 to clamp and fix one end of the ball valve spool, and the pushing member 313 and the clamping member 39 clamp and fix the ball valve spool. Then the turntable 32 drives the first rotating arm 37 and the second rotating arm 311 to reset to the processing position. At this time, when turning the end of the ball valve spool, the second rotating arm 311 drives the pushing member 313 to move away from the ball valve spool, and the turning head 26 is used to turn the ball valve spool. When turning the side of the ball valve spool, start the servo motor 36. The servo motor 36 drives the power gear 35 to rotate. The power gear 35 drives the gear disc 34 to rotate. The gear disc 34 drives the first rotating arm 37 and the second rotating arm 311 to rotate, so that the side of the ball valve spool between the clamping member 39 and the pushing member 313 faces the turning head 26. Then the turning head 26 turns the side of the ball valve spool. The processed ball valve spool is sent back to the lifting table 319 by the first rotating arm 37 and the second rotating arm 311, and the lifting table 319 is also pressed down. At this time, the existing clamping member 39 releases the fixation of the ball valve spool. The first rotating arm 37 then moves away from the lifting table 319. The pushing member 313 pushes the processed ball valve spool away from the lifting table 319, so that the processed ball valve spool falls behind the conveyor belt 317. Then the first rotating arm 37 presses against the lifting table 319 again, and the second rotating arm 311 moves away from the lifting table 319. The conveyor belt 317 moves the next ball valve spool onto the lifting table 319 and performs the turning process of the next ball valve spool.

[0038] The overall working principle of the numerically controlled turning machine tool: The conveying system of the ball valve spool conveys the ball valve spool and stops moving in front of the lifting table 319. The clamping member 3001 deflects out from the through-hole of the machine body 1 and presses against the lifting table 319 to press down the lifting table 319. The conveying system transfers a ball valve spool onto the lifting table 319. After the ball valve spool is moved onto the lifting table 319, the clamping member 3001 clamps and fixes the ball valve spool, and carries the ball valve spool to deflect to the processing position. The turning head 26 turns the ball valve spool on the clamping member 3001. After the processed ball valve spool is sent back onto the lifting table 319, the conveying system is used to remove the processed ball valve spool, and at the same time, the next ball valve spool is moved onto the lifting table 319, thus replacing the semi-automatic processing method of manually assisting the CNC lathe, eliminating the fixing error existing when manually placing the ball valve spool, avoiding the influence of the error on the processing accuracy, improving the processing efficiency of the equipment, and improving the processing accuracy of the equipment; Among them, before turning processing, the hydraulic rod 28 is started. The hydraulic rod 28 extends the rod to drive the sliding door 27 to move, so that the sliding door 27 moves away from the through-hole of the machine body 1. The clamping member 3001 then deflects and turns out from the through-hole of the machine body 1. After clamping and fixing a ball valve spool on the conveying system, the clamping member 3001 then turns back to the processing position in the machine body 1. Then the sliding door 27 resets to close the through-hole of the machine body 1. The stepping motor 25 is started. The stepping motor 25 drives the screw rod 24 to rotate. The screw rod 24 drives the linkage member 23 to move. The linkage member 23 drives the moving frame 22 to move on the slide rail 21. The moving frame 22 drives the turning head 26 to move, so that the turning head 26 abuts against the ball valve spool for turning processing; When moving the ball valve spool from the conveying system to the processing position, first use the conveying system to move the ball valve spool onto the conveyor belt 317, start the conveying motor 318, the conveying motor 318 drives the conveying roller 316 to rotate, the conveying roller 316 drives the conveyor belt 317 to rotate, and the conveyor belt 317 moves the ball valve spool and stops moving in front of the lifting table 319. Then start the rotating shaft cylinder 33, the rotating shaft cylinder 33 drives the turntable 32 to deflect on the bracket 31, so that the turntable 32 drives the first rotating arm 37 and the second rotating arm 311 to rotate out from the through hole of the machine body 1. Start the first motor 38, the first motor 38 drives the first rotating arm 37 to deflect, so that the first rotating arm 37 presses against the lifting table 319, and the lifting table 319 presses the spring telescopic rod 320 to move downward, so that the lifting table 319 is located below the conveyor belt 317. The conveyor belt 317 continues to move a ball valve spool onto the lifting table 319, that is, against the gripping member 39. Then start the second motor 312, the second motor 312 drives the second rotating arm 311 to deflect onto the lifting table 319, start the hydraulic cylinder 310 and the telescopic cylinder 314, the telescopic cylinder 314 drives the pushing member 313 to push the ball valve spool onto the gripping member 39, and the hydraulic cylinder 310 drives the gripping member 39 to grip and fix one end of the ball valve spool, while the pushing member 313 and the gripping member 39 clamp and fix the ball valve spool. Then the turntable 32 drives the first rotating arm 37 and the second rotating arm 311 to reset to the processing position. At this time, if turning the end of the ball valve spool, the second rotating arm 311 drives the pushing member 313 to move away from the ball valve spool, and use the turning head 26 to turn the ball valve spool. If turning the side of the ball valve spool, start the servo motor 36, the servo motor 36 drives the power gear 35 to rotate, the power gear 35 drives the gear disk 34 to rotate, the gear disk 34 drives the first rotating arm 37 and the second rotating arm 311 to rotate, so that the side of the ball valve spool between the gripping member 39 and the pushing member 313 faces the turning head 26, and then the turning head 26 turns the side of the ball valve spool. The processed ball valve spool is sent back to the lifting table 319 by the first rotating arm 37 and the second rotating arm 311, and the lifting table 319 is also pressed down. At this time, the existing gripping member 39 releases the fixation of the ball valve spool, the first rotating arm 37 moves away from the lifting table 319, and the pushing member 313 pushes the processed ball valve spool away from the lifting table 319, so that the processed ball valve spool falls behind the conveyor belt 317. Then the first rotating arm 37 presses against the lifting table 319 again, the second rotating arm 311 moves away from the lifting table 319, and the conveyor belt 317 moves the next ball valve spool onto the lifting table 319 and performs the turning process of the next ball valve spool.

[0039] A processing technology for a ball valve spool uses the above-mentioned numerically controlled lathe, and includes the following steps: S1: The conveying system of the ball valve spool conveys the ball valve spool to the conveyor belt 317, and the ball valve spool stops moving in front of the lifting table 319 on the conveyor belt 317; S2: The clamping member 3001 deflects out from the through - opening of the machine body 1 and abuts against the lifting table 319 to press down the lifting table 319. After the position height of the lifting table 319 is lower than that of the conveyor belt 317, the conveyor belt 317 transfers a ball valve spool onto the lifting table 319. S3: After the ball valve spool is moved onto the lifting table 319, the clamping member 3001 clamps and fixes the ball valve spool and carries the ball valve spool to deflect to the machining position. S4: The turning head 26 performs turning machining on the ball valve spool on the clamping member 3001. S5: The processed ball valve spool is sent back onto the lifting table 319. The conveyor belt 317 removes the processed ball valve spool and at the same time moves the next ball valve spool onto the lifting table 319.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A numerically controlled turning machine tool, comprising a machine body, a turning mechanism arranged on the machine body, and a conveying mechanism arranged on the machine body, characterized in that: The turning mechanism includes a turning head, the turning head is arranged in the machine body, and the turning head moves in the machine body to perform turning processing on the ball valve core; The conveying mechanism includes a clamping member and a lifting table. The clamping member is arranged in the machine body. The clamping member clamps and fixes the ball valve core in a single-end grasping and fixing manner or a double-end clamping and fixing manner. The clamping member deflects to the processing position in the machine body or the ball valve core conveying system outside the machine body. The lifting table is arranged beside the machine body. The lifting table is arranged on the ball valve core conveying system. The lifting table is located on the deflection trajectory of the clamping member. The clamping member presses down the lifting table. The lifting table carries a ball valve core on the conveying system. The clamping member clamps the ball valve core on the lifting table and transfers it to the processing position.

2. The numerically controlled turning machine tool according to claim 1, characterized in that: The turning mechanism further includes a slide rail, the slide rail is fixedly installed on one side of the bottom end inside the machine body, a moving frame is slidably matched with the slide rail, a linkage member is fixedly installed at the bottom end of the moving frame, a screw rod is rotatably matched with the bottom end of the machine body, the screw rod penetrates through the linkage member, the screw rod is in threaded cooperation with the linkage member, the length of the screw rod is the same as that of the slide rail, the screw rod is located below the slide rail, a stepping motor is fixedly installed on one side of the bottom end inside the machine body, the stepping motor is in power connection with the screw rod, and the turning head is arranged on the moving frame.

3. The numerically controlled turning machine tool according to claim 2, characterized in that: An opening is formed on one side of the machine body. The opening of the machine body is located on the deflection trajectory of the clamping member. A sliding door is slidably matched with the machine body. The size of the sliding door is adapted to the size of the opening of the machine body. The opening of the machine body is located on the moving trajectory of the sliding door. A hydraulic rod is fixedly installed inside the machine body. The extending rod of the hydraulic rod penetrates through the wall surface of the machine body. The extending rod of the hydraulic rod is fixedly connected with the sliding door. The telescopic length of the hydraulic rod is adapted to the moving trajectory length of the sliding door.

4. The numerically controlled turning machine tool according to claim 3, characterized in that: An auxiliary member is arranged inside the machine body. The auxiliary member is adjacent to the turning head. The auxiliary member is used to provide auxiliary help for turning processing.

5. The numerically controlled turning machine tool according to claim 4, characterized in that: The conveying mechanism further includes a bracket. The bracket is fixedly installed on the other side of the bottom end inside the machine body. The bracket is adjacent to the opening of the machine body. A turntable is rotatably matched with the top end of the bracket. A rotating shaft cylinder is fixedly installed on the bracket. The rotating shaft cylinder is in power connection with the turntable. The deflection angle range of the turntable is the same as the deflection angle range of the clamping member.

6. The numerically controlled turning machine tool according to claim 5, characterized in that: A gear disk is rotatably fitted to the top end of the turntable, a power gear is rotatably fitted to the turntable, the power gear meshes with the gear disk, the size of the gear disk is larger than that of the power gear, a servo motor is fixedly installed on the turntable, and the servo motor is in power connection with the power gear.

7. The numerically controlled turning machine tool according to claim 6, wherein: A first rotating arm is rotatably fitted to one side of the top end of the gear disk, the first rotating arm extends to the machining position inside the machine body, a first motor is fixedly installed on one side of the top end of the gear disk, the first motor is in power connection with the first rotating arm, a clamping member is arranged at the top end of the first rotating arm, a hydraulic cylinder is fixedly installed at the top end of the first rotating arm, the hydraulic cylinder is in power connection with the clamping member, and the hydraulic cylinder drives the clamping member to open and close to clamp and fix one end of the ball valve core.

8. The numerically controlled turning machine tool according to claim 7, wherein: A second rotating arm is rotatably fitted to the other side of the top end of the gear disk, the second rotating arm extends to the machining position inside the machine body, a second motor is fixedly installed on the other side of the top end of the gear disk, the second motor is in power connection with the second rotating arm, a pushing member is arranged at the top end of the second rotating arm, a telescopic cylinder is fixedly installed at the top end of the second rotating arm, the telescopic cylinder is in power connection with the pushing member, the telescopic cylinder drives the pushing member to cooperate with the clamping member to clamp the ball valve core in the middle, the clamping member and the pushing member are both located between the first rotating arm and the second rotating arm, and the clamping member includes the clamping member and the pushing member.

9. The numerically controlled turning machine tool according to claim 8, wherein: A fixing frame is arranged beside the machine body, the fixing frame is arranged in two adjacent parts, a plurality of conveyor rollers are rotatably fitted on the fixing frame, conveyor belts are tensioned on the conveyor rollers on each part of the fixing frame, the conveyor belts are all located between the two parts of the fixing frame, conveying motors are fixedly installed on both parts of the fixing frame, the conveying motors are in power connection with the conveyor rollers, a lifting table is arranged between the conveyor belts on both sides, the lifting table is located above the conveyor belts, the lifting table is located on the deflection track of the clamping member, the lifting table is located on the deflection track of the pushing member, a spring telescopic rod is arranged beside the machine body, the spring telescopic rod is located directly below the lifting table, the extending rod of the spring telescopic rod is fixedly connected with the lifting table, and the conveying system of the ball valve core includes the conveyor belt.

10. A processing technology for a ball valve spool, which uses the numerically controlled lathe as described in claim 9, is characterized in that, It includes the following steps: S1: The conveying system of the ball valve core conveys the ball valve core to the conveyor belt, and the ball valve core stops moving on the conveyor belt before reaching the lifting table; S2: The clamping member deflects out from the through hole of the machine body and abuts against the lifting table to press down the lifting table. After the position height of the lifting table is lower than that of the conveyor belt, the conveyor belt conveys a ball valve core to the lifting table; S3: After the ball valve core is moved to the lifting table, the clamping member clamps and fixes the ball valve core and carries the ball valve core to deflect to the machining position; S4: The turning head performs turning on the ball valve spool on the clamping piece; S5: The processed ball valve spool is sent back to the lifting table, and the processed ball valve spool is removed by the conveyor belt. At the same time, the next ball valve spool is moved to the lifting table.

Images