A ball valve spool grinding machine convenient for adjustment and its processing method

Abstract

The present application discloses a ball valve spool grinding machine that is convenient to adjust, belonging to the technical field of valve production equipment. The key technical points of its technical solution include: a frame; a clamping device for clamping the ball valve spool, and the clamping device is provided with a clamping seat; a grinding device for grinding the outer surface of the ball valve spool, and the grinding device includes a first driving device, a mounting disc, and a grinding head; a swinging assembly for the swinging of the clamping seat; an adjusting assembly disposed on the grinding device and used for adjusting the grinding head; wherein, the clamping device is provided with an inner clamping block, and the inner clamping block abuts against the inner wall surface of the through hole of the ball valve spool. The clamping device is provided with a second driving device, and the second driving device is installed on the clamping seat and used for driving the ball valve spool to rotate, and the mounting disc is installed and connected to the first driving device. The present application can be applied to grind ball valve spools with different diameter sizes, reduce the separate configuration of grinding heads, and reduce the processing cost.

Description

Technical Field

[0001] This application belongs to the technical field of valve production equipment, and particularly relates to a ball valve spool grinding machine that is easy to adjust and its processing method. Background Art

[0002] The surface roughness, roundness of the ball valve spool, and the fitting accuracy with the valve seat are one of the main factors affecting valve sealing. Although the dimensions, surface roughness, and shape accuracy of turning and grinding the ball can be processed to the required accuracy, when the ball and the valve seat are metal-sealed, due to the shape of the ball and the shape of the valve seat sealing contact surface and the installation error, there is a contact error between the ball and the valve seat sealing surface. When the contact error reaches a certain value, it causes leakage of the sealing surface. Therefore, it is necessary to perform fitting grinding on the ball and the valve seat sealing surface. The traditional method of manual grinding has a large labor intensity, low production efficiency, and it is difficult to guarantee the quality.

[0003] The existing Chinese patent with the publication number CN104325387B discloses a sphere grinding machine. It is characterized in that: a rotary worktable is provided on the machine frame; a clamping and rotating mechanism capable of clamping the sphere and driving the sphere to rotate is provided on the rotary worktable; a grinding mechanism for grinding the sphere is further provided on the machine frame. The grinding mechanism includes a driving shaft and a connecting shaft for connecting the valve seat. The axis centers of the driving shaft and the connecting shaft are not on the same axis and are linked by a connecting piece.

[0004] Although the above grinding machine can grind the ball valve spool, it cannot be adapted to different diameters of the ball valve spool by an adjustable method. Different ball valve sizes require different grinding tools for grinding, resulting in an increase in processing costs. Summary of the Invention

[0005] The purpose of this application is to address the above-mentioned existing technical problems and provide a ball valve spool grinding machine that is easy to adjust, which can be used for grinding and processing ball valve spools with different diameter sizes, reduce the separate configuration of grinding heads, and lower the processing cost.

[0006] This application provides a ball valve spool grinding machine that is easy to adjust, including:

[0007] A machine frame;

[0008] A clamping device for clamping the ball valve spool, and the clamping device is provided with a clamping seat;

[0009] A grinding device for grinding the outer surface of the ball valve spool, and the grinding device includes a first driving device, a mounting disc, and a grinding head;

[0010] A swing assembly for the swing of the clamping seat;

[0011] Adjusting assembly, placed on the grinding device and used to adjust the grinding head;

[0012] Wherein, the clamping device is provided with an inner clamping block, the inner clamping block abuts against the inner wall surface of the through hole of the ball valve core, the clamping device is provided with a second driving device, the second driving device is installed on the clamping seat and is used to drive the rotation of the ball valve core, and the mounting disc is installed and connected to the first driving device.

[0013] The clamping device, the grinding device, and the swinging assembly are installed on the frame. The ball valve core to be processed is clamped and fixed on the clamping seat by the inner clamping block of the clamping device abutting against the inner wall surface of the through hole of the ball valve core. The ball valve core is driven to rotate by the second driving device. The first driving device is used to rotate the mounting disc. The grinding head is installed on the mounting disc. The outer surface of the ball valve core is ground by the grinding head. The ball valve core during the grinding process is swung left and right by the swinging assembly to ensure that the outer surfaces near the edge of the through hole of the ball valve core can be ground, improving the grinding quality of the ball valve core. The position of the grinding head is adjusted through the adjusting assembly, which is convenient for ball valve cores with different diameters. The inner clamping block first extends into the through hole of the ball valve core and then expands to clamp.

[0014] Further, the adjusting assembly includes:

[0015] The first adjusting cavity, installed on the mounting disc;

[0016] The first piston, placed in the first adjusting cavity;

[0017] The first telescopic rod, connected to the first piston;

[0018] The abutting block, connected to the first telescopic rod;

[0019] The mounting seat, connected to the end of the first telescopic rod;

[0020] The second adjusting cavity, installed on the abutting block;

[0021] The second piston, placed in the second adjusting cavity;

[0022] The second telescopic rod, connected to the second piston;

[0023] The stabilizing assembly, used to stabilize each abutting block;

[0024] Wherein, the first adjusting cavity is communicated with the second adjusting cavity.

[0025] The position of the first piston is adjusted by controlling the amount of the adjusting medium in the first adjusting cavity. The first telescopic rod is installed and connected to the first piston, so that the first telescopic rod moves simultaneously with the first piston for adjustment. After the adjustment is completed, the grinding head installed on the mounting seat abuts against the outer wall surface of the ball valve body, and grinding can be achieved. By connecting the second adjusting cavity with the first adjusting cavity, the position of the second piston in the second adjusting cavity is adjusted, and the action of the second telescopic rod on both ends of the mounting seat is adjusted. The stable component acts on the abutting block, thereby improving the stability of the mounting seat, further improving the stability during grinding of the grinding head, and ensuring the grinding accuracy of the ball valve spool.

[0026] Further, the stable component includes:

[0027] An abutting seat;

[0028] A rotating shaft, placed at the middle position of the abutting seat;

[0029] A moving seat, placed on the mounting disc;

[0030] An adjusting lead screw, installed on the mounting disc and adapted to the moving seat;

[0031] An adjusting gear, installed on the adjusting lead screw and having the same axis;

[0032] A transmission gear, installed on the mounting disc and meshing with the adjusting gear;

[0033] An adjusting handle, installed on the mounting disc;

[0034] A worm, installed and connected to the adjusting handle;

[0035] A worm gear, installed on the mounting disc and meshing with the worm;

[0036] A feedback component, placed between the rotating shaft and the moving seat;

[0037] Wherein, the rotating shaft is installed on the moving seat, and both ends of the abutting seat abut against two adjacent abutting blocks.

[0038] Both ends of the abutment seat abut against two adjacent abutment blocks. The abutment blocks are hinged to the first telescopic rod. When there is a difference in the forces on the second telescopic rods at both ends of the mounting seat, it is easy for the abutment blocks to rotate. Through the structural relationship between the abutment seat and the abutment blocks, the abutment blocks on the entire mounting disc are interconnected. When one of the abutment blocks is about to rotate, it is stabilized at its original position under the action of the abutment seat. Especially for the state where the valve core of the ball valve swings during grinding, resulting in a small amount of grinding heads detaching from the surface contact of the valve core of the ball valve, the stability of the mounting seat is further improved. By rotating the adjustment handle, the worm rotates. Through the worm, the worm wheel rotates. The worm wheel and the adjustment gear are driven by a transmission gear. Both the transmission gear and the adjustment gear are bevel gears. By rotating the adjustment gear, the lead screw is driven to rotate, controlling the movement of the moving seat on the lead screw for adjustment. Through the feedback component, the angular position of the abutment seat is feedback. When the deflection angle of the abutment block is relatively large, it will cause the abutment seat to not be able to abut against the abutment block normally, resulting in the deflection of the abutment seat. Through the feedback component, the performance stability of the stability component is further improved.

[0039] Further, the mounting seat includes:

[0040] A movable seat, movably connected to both ends of the mounting seat;

[0041] Among them, the grinding heads and the second telescopic rods on the movable seat correspond separately.

[0042] The movable seat is hinged to the mounting seat, and the second telescopic rod is hinged to the movable seat. When the second telescopic rod extends outwards, the grinding heads on the movable seat abut against the outer surface of the valve core of the ball valve, further improving the adaptability of the overall mounting seat to the valve core of the ball valve.

[0043] Further, the feedback component includes:

[0044] Sensors, several of which are evenly distributed around the axis of the rotating shaft;

[0045] A ferromagnetic body, installed inside the rotating shaft;

[0046] An electromagnet, installed on the moving seat;

[0047] Among them, the ferromagnetic body is adapted to the electromagnet, and the sensors are used to sense the magnetic field change between the ferromagnetic body and the electromagnet.

[0048] Several sensors are evenly distributed around the axis of the rotating shaft on the rotating shaft. After the electromagnet is energized, a magnetic field is generated between it and the ferromagnetic body. When the rotating shaft rotates, the change of the magnetic field is sensed by the sensors to realize the calculation of the deflection angle of the abutment seat. After the abutment seat deflects, in the state where the abutment seat is not restricted, through the interaction between the ferromagnetic body and the electromagnet, the rotating shaft and the abutment seat are reset.

[0049] Further, the grinding device further includes:

[0050] A liquid dropping head, mounted on the mounting seat;

[0051] A valve seat, mounted on the mounting seat and connected to the liquid dropping head;

[0052] A valve body, placed inside the valve seat;

[0053] A connecting rod, hinged to the valve seat;

[0054] Wherein, the valve seat is provided with an input port, the valve seat is provided with an output port, the output port is installed and connected to the liquid dropping head, the valve body is provided with a flow channel, the flow channel connects between the output port and the input port, the flow channel is provided with an adjustment groove at one end close to the input port, one end of the connecting rod is slidably hinged to the valve body, the other end of the connecting rod is provided with a connecting seat, the connecting rod is slidably hinged between the connecting seat, and the connecting seat is mounted on the movable seat.

[0055] The grinding liquid is dripped onto the surface of the ball valve core like a ball valve core. The diameter sizes of the ball valve cores are different, and the grinding areas are also different. The dropping speeds of the grinding liquid are different and are controlled by the valve seat, the valve body, and the connecting rod. When the diameter of the ball valve core is larger, the deflection angle between the movable seat and the mounting seat is smaller, the area corresponding to the adjustment groove and the input port is larger, so that the flow rate of the grinding liquid is large. When the diameter of the ball valve core is smaller, the deflection angle between the movable seat and the mounting seat is larger, the area corresponding to the adjustment groove and the input port is smaller, so that the flow rate of the grinding liquid is small. The connecting rod is slidably hinged between the movable seat and the valve seat at both ends to ensure the rotation of the connecting rod.

[0056] Further, the swing assembly includes:

[0057] A swing motor, mounted on the frame;

[0058] A cam seat, mounted on the output shaft of the swing motor;

[0059] A swing rod, mounted between the cam seat and the clamping seat;

[0060] Wherein, the clamping seat is hinged to the frame.

[0061] The swing motor is driven to rotate the cam seat, pulling the swing rod, so that the clamping seat makes a swinging motion, so that the outer surface of the through hole edge close to the ball valve core can also be completely ground, ensuring the grinding quality. The swing rod is hinged between the cam seat and the clamping seat.

[0062] This application also provides a processing method for a ball valve core grinding machine that is easy to adjust. The specific steps include:

[0063] S1. Adjust the grinding device, select a standard part corresponding to the ball valve core to be processed, clamp it through the clamping device, adjust the position of the grinding head through the adjustment component, and then adjust the stabilizing component to make the abutting seat abut against the abutting block;

[0064] S2. Grinding process. After the adjustment is completed, replace the standard part on the clamping device with the ball valve core to be processed, start the processing. The first driving device drives the grinding head to rotate, the second driving device drives the ball valve core to rotate around the axis of the through hole, and at the same time, control the ball valve core to swing left and right through the swinging component to grind the entire outer surface of the ball valve core.

[0065] First, adjust the grinding head through the standard part to ensure the grinding accuracy of the ball valve core. Through the rotation of the grinding head, the rotation of the ball valve core around its own axis and the simultaneous swinging, the grinding of the outer surface of the ball valve core is realized.

[0066] The beneficial effects of this application are:

[0067] 1. The inner clamping block of the clamping device abuts against the inner wall surface of the through hole of the ball valve core, clamping and fixing the ball valve core on the clamping seat. The ball valve core is driven to rotate through the second driving device, and the first driving device is used to rotate the mounting plate. The outer surface of the ball valve core is ground by the rotation of the grinding head, and the ball valve core during the grinding process is swung left and right through the swinging component to ensure that the outer surface of the ball valve core is completely ground, improving the grinding quality of the ball valve core.

[0068] 2. Control the telescopic movement of the first telescopic rod through the first adjustment cavity, adjust the telescopic movement of the second telescopic rod through the second adjustment cavity. Through the first telescopic rod and the second telescopic rod, the grinding heads on the mounting seat can all abut against the outer surface of the ball valve core, improving the grinding speed. Through adjustment, the position of the grinding head can be adapted to the diameter size of the ball valve core, improving the adjustability of the grinding device.

[0069] 3. When there is a difference in the forces on the second telescopic rods at both ends of the mounting seat, it is easy for the abutting block to rotate. Through the structural relationship between the abutting seat and the abutting block, the abutting blocks on the entire mounting plate are connected to each other. When one of the abutting blocks is about to rotate, it is stabilized in its original position under the action of the abutting seat. Especially for the situation where the ball valve core swings during grinding, resulting in a small amount of grinding heads being separated from the surface contact of the ball valve core, the stability of the mounting seat is further improved.

[0070] 4. Several sensors are provided and evenly distributed around the axis of the rotating shaft on the rotating shaft. After the electromagnet is energized, a magnetic field is generated between the electromagnet and the ferromagnetic body. When the rotating shaft rotates, the change of the magnetic field is sensed by the sensor to realize the calculation of the deflection angle of the abutting seat. Description of the Drawings

[0071] Figure 1Schematic structural diagram of the grinding machine of the present application;

[0072] Figure 2 Schematic structural diagram of the mounting disc of the present application;

[0073] Figure 3 Schematic structural diagram of the adjusting assembly of the present application;

[0074] Figure 4 For the present application Figure 2 Schematic structural diagram of the structure at position A of

[0075] Figure 5 For the present application Figure 2 Schematic structural diagram of the structure at position B of

[0076] Figure 6 Schematic structural diagram of the feedback assembly of the present application;

[0077] Figure 7 Schematic structural diagram of the valve seat of the present application;

[0078] In the figure, the reference numerals are: 100, frame; 200, clamping device; 210, clamping seat; 220, inner clamping block; 230, second driving device; 300, grinding device; 310, first driving device; 320, mounting disc; 330, grinding head; 340, liquid dropping head; 350, valve seat; 351, input port; 352, output port; 360, valve body; 361, flow channel; 362, adjusting groove; 370, connecting rod; 400, swinging assembly; 410, swinging motor; 420, cam seat; 430, swinging rod; 500, adjusting assembly; 510, first adjusting cavity; 520, first piston; 530, first telescopic rod; 540, abutting block; 550, mounting seat; 551, movable seat; 552, connecting seat; 560, second adjusting cavity; 570, second piston; 580, second telescopic rod; 600, stabilizing assembly; 610, abutting seat; 620, rotating shaft; 630, moving seat; 640, adjusting lead screw; 650, adjusting gear; 660, driving gear; 670, adjusting handle; 680, worm; 690, worm gear; 700, feedback assembly; 710, sensor; 720, ferromagnetic body; 730, electromagnet. Detailed implementation manners

[0079] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application belong to the scope of protection of the present application.

[0080] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0081] The following will combine the accompanying drawings to provide a detailed description of the embodiments of this application through specific embodiments and their application scenarios.

[0082] Embodiment 1:

[0083] As Figure 1 、 Figure 2 shown, the embodiment of this application provides an easily adjustable grinding machine for the ball valve spool, including:

[0084] A frame 100;

[0085] A clamping device 200 for clamping the ball valve spool, and the clamping device 200 is provided with a clamping seat 210;

[0086] A grinding device 300 for grinding the outer surface of the ball valve spool, and the grinding device 300 includes a first driving device 310, a mounting disc 320, and a grinding head 330;

[0087] A swing assembly 400 for the swing of the clamping seat 210;

[0088] An adjustment assembly 500 placed on the grinding device 300 and used to adjust the grinding head 330;

[0089] Among them, the clamping device 200 is provided with an inner clamping block 220, the inner clamping block 220 abuts against the inner wall surface of the through hole of the ball valve spool, the clamping device 200 is provided with a second driving device 230, the second driving device 230 is installed on the clamping seat 210 and is used to drive the ball valve spool to rotate, and the mounting disc 320 is installed and connected to the first driving device 310.

[0090] The clamping device 200, the grinding device 300, and the swinging assembly 400 are installed on the frame 100. The inner clamping block 220 of the clamping device 200 abuts against the inner wall surface of the through hole of the ball valve core to be machined, so as to clamp and fix the ball valve core on the clamping seat 210. The ball valve core is driven to rotate by the second driving device 230. The first driving device 310 is used to rotate the mounting disk 320. The grinding head 330 is installed on the mounting disk 320. The outer surface of the ball valve core is ground by the grinding head 330. The swinging assembly 400 swings the ball valve core left and right during the grinding process to ensure that the outer surfaces of the ball valve core near the edge of the through hole can be ground, improving the grinding quality of the ball valve core. The position of the grinding head 330 is adjusted by the adjusting assembly 500, which is convenient for ball valve cores with different diameters. The inner clamping block 220 first extends into the through hole of the ball valve core and then expands to clamp.

[0091] Embodiment 2:

[0092] As Figure 2 、 Figure 3 、 Figure 4 shown, the embodiment of the present application provides a ball valve core grinding machine that is convenient for adjustment. In addition to including the above technical features, further, the adjusting assembly 500 includes:

[0093] The first adjusting cavity 510 is installed on the mounting disk 320;

[0094] The first piston 520 is placed in the first adjusting cavity 510;

[0095] The first telescopic rod 530 is connected to the first piston 520;

[0096] The abutting block 540 is connected to the first telescopic rod 530;

[0097] The mounting seat 550 is connected to the end of the first telescopic rod 530;

[0098] The second adjusting cavity 560 is installed on the abutting block 540;

[0099] The second piston 570 is placed in the second adjusting cavity 560;

[0100] The second telescopic rod 580 is connected to the second piston 570;

[0101] The stabilizing assembly 600 is used to stabilize each abutting block 540;

[0102] Among them, the first adjusting cavity 510 communicates with the second adjusting cavity 560.

[0103] The position of the first piston 520 is adjusted by controlling the amount of the adjusting medium in the first adjusting cavity 510. The first telescopic rod 530 is installed and connected to the first piston 520, so that the first telescopic rod 530 moves and adjusts simultaneously with the first piston 520. After the adjustment is completed, the grinding head 330 installed on the mounting seat 550 abuts against the outer wall surface of the ball valve body 360, and grinding can be realized. The second adjusting cavity 560 is communicated with the first adjusting cavity 510, the position of the second piston 570 in the second adjusting cavity 560 is adjusted, and the action of the second telescopic rod 580 on both ends of the mounting seat 550 is adjusted. The stable component 600 acts on the abutting block 540, thereby improving the stability of the mounting seat 550, further improving the stability during the grinding of the grinding head 330, and ensuring the grinding accuracy of the ball valve spool.

[0104] Further, the stable component 600 includes:

[0105] An abutting seat 610;

[0106] A rotating shaft 620, placed at the middle position of the abutting seat 610;

[0107] A moving seat 630, placed on the mounting disc 320;

[0108] An adjusting lead screw 640, installed on the mounting disc 320 and adapted to the moving seat 630;

[0109] An adjusting gear 650, installed on the adjusting lead screw 640 and having the same axis;

[0110] A transmission gear 660, installed on the mounting disc 320 and meshing with the adjusting gear 650;

[0111] An adjusting handle 670, installed on the mounting disc 320;

[0112] A worm 680, installed and connected to the adjusting handle 670;

[0113] A worm gear 690, installed on the mounting disc 320 and meshing with the worm 680;

[0114] A feedback component 700, placed between the rotating shaft 620 and the moving seat 630;

[0115] Wherein, the rotating shaft 620 is installed on the moving seat 630, and both ends of the abutting seat 610 abut against two adjacent abutting blocks 540.

[0116] The two ends of the abutment seat 610 abut against two adjacent abutment blocks 540. The abutment blocks 540 are hinged to the first telescopic rod 530. When there is a difference in the forces on the two ends of the second telescopic rods 580 on the mounting seat 550, the abutment blocks 540 are prone to rotation. Through the structural relationship between the abutment seat 610 and the abutment blocks 540, the abutment blocks 540 on the entire mounting plate 320 are interconnected. When one of the abutment blocks 540 is about to rotate, it is stabilized in its original position under the action of the abutment seat 610. Particularly for the state where the ball valve spool swings during grinding, resulting in a small amount of the grinding head 330 being separated from the surface contact of the ball valve spool, the stability of the mounting seat 550 is further improved. By rotating the adjustment handle 670, the worm 680 rotates. Through the worm 680, the worm gear 690 rotates. The worm gear 690 and the adjustment gear 650 are driven by a transmission gear 660. Both the transmission gear 660 and the adjustment gear 650 are bevel gears. By rotating the adjustment gear 650, the lead screw is driven to rotate, controlling the movement of the moving seat 630 on the lead screw for adjustment. The feedback assembly 700 provides feedback on the angular position of the abutment seat 610. When the deflection angle of the abutment block 540 is relatively large, it will cause the abutment seat 610 to be unable to abut against the abutment block 540 normally, thus causing the abutment seat 610 to deflect. Through the feedback assembly 700, the performance stability of the stabilizing assembly 600 is further improved.

[0117] Embodiment 3:

[0118] As Figure 3 、 Figure 5 shown, the embodiment of the present application provides a ball valve spool grinding machine that is easy to adjust. In addition to including the above technical features, further, the mounting seat 550 includes:

[0119] A movable seat 551, movably connected to both ends of the mounting seat 550;

[0120] Among them, the grinding head 330 and the second telescopic rod 580 on the movable seat 551 correspond individually.

[0121] The movable seat 551 is hinged to the mounting seat 550, and the second telescopic rod 580 is hinged to the movable seat 551. When the second telescopic rod 580 extends outwards, the grinding head 330 on the movable seat 551 abuts against the outer surface of the ball valve spool, further improving the overall adaptability of the mounting seat 550 to the ball valve spool.

[0122] Embodiment 4:

[0123] As Figure 2 、 Figure 6 shown, the embodiment of the present application provides a ball valve spool grinding machine that is easy to adjust. In addition to including the above technical features, further, the feedback assembly 700 includes:

[0124] The sensor 710 is provided with several and evenly distributed around the axis of the rotating shaft 620;

[0125] The ferromagnetic body 720 is installed inside the rotating shaft 620;

[0126] The electromagnet 730 is installed on the moving seat 630;

[0127] Wherein, the ferromagnetic body 720 is adapted to the electromagnet 730, and the sensor 710 is used to sense the magnetic field change between the ferromagnetic body 720 and the electromagnet 730.

[0128] The sensor 710 is provided with several and evenly distributed around the axis of the rotating shaft 620 on the rotating shaft 620. After the electromagnet 730 is energized, a magnetic field is generated between the electromagnet 730 and the ferromagnetic body 720. When the rotating shaft 620 rotates, the change of the magnetic field is sensed by the sensor 710 to realize the calculation of the deflection angle of the abutting seat 610. When the abutting seat 610 deflects, in the state where the abutting seat 610 is not restricted, through the interaction between the ferromagnetic body 720 and the electromagnet 730, the rotating shaft 620 and the abutting seat 610 are reset.

[0129] Embodiment 5:

[0130] As Figure 3 、 Figure 5 、 Figure 7 shown, the embodiment of the present application provides an easy-to-adjust ball valve core grinding machine. In addition to including the above technical features, further, the grinding device 300 further includes:

[0131] The drip head 340 is installed on the mounting seat 550;

[0132] The valve seat 350 is installed on the mounting seat 550 and connected to the drip head 340;

[0133] The valve body 360 is placed inside the valve seat 350;

[0134] The connecting rod 370 is hinged to the valve seat 350;

[0135] Wherein, the valve seat 350 is provided with an input port 351, the valve seat 350 is provided with an output port 352, the output port 352 is installed and connected to the drip head 340, the valve body 360 is provided with a flow channel 361, the flow channel 361 connects between the output port 352 and the input port 351, the flow channel 361 is provided with an adjustment groove 362 at one end close to the input port 351, one end of the connecting rod 370 is slidably hinged to the valve body 360, the other end of the connecting rod 370 is provided with a connecting seat 552, the connecting rod 370 is slidably hinged to the connecting seat 552, and the connecting seat 552 is installed on the movable seat 551.

[0136] The grinding fluid is dripped onto the surface of the ball valve spool like a ball valve spool through the drip head 340. The diameter sizes of the ball valve spools are different, and their grinding areas are also different. The dripping speed of the grinding fluid is different and is controlled by the valve seat 350, the valve body 360, and the connecting rod 370. When the diameter of the ball valve spool is large, the deflection angle between the movable seat 551 and the mounting seat 550 is small, and the area corresponding to the adjustment groove 362 and the input port 351 is large, so that the flow rate of the grinding fluid is large. When the diameter of the ball valve spool is small, the deflection angle between the movable seat 551 and the mounting seat 550 is large, and the area corresponding to the adjustment groove 362 and the input port 351 is small, so that the flow rate of the grinding fluid is small. The connecting rod 370 is slidably hinged between the movable seats 551 and the valve seat 350 at both ends to ensure the rotation of the connecting rod 370.

[0137] Example 6:

[0138] As Figure 1 shown, the embodiment of the present application provides a ball valve spool grinding machine that is convenient to adjust. In addition to including the above technical features, further, the swing assembly 400 includes:

[0139] A swing motor 410, mounted on the frame 100;

[0140] A cam seat 420, mounted on the output shaft of the swing motor 410;

[0141] A swing rod 430, mounted between the cam seat 420 and the clamping seat 210;

[0142] Wherein, the clamping seat 210 is hinged to the frame 100.

[0143] The swing motor 410 is driven to rotate the cam seat 420, pulling the swing rod 430, so that the clamping seat 210 makes a swinging motion, so that the outer surface near the through-hole edge of the ball valve spool can also be completely ground, ensuring the grinding quality. The swing rod 430 is hinged between the cam seat 420 and the clamping seat 210.

[0144] Example 7:

[0145] The present application also provides a processing method for a ball valve spool grinding machine that is convenient to adjust. The specific steps include:

[0146] S1, adjust the grinding device 300, select a standard part corresponding to the ball valve spool to be processed, clamp it through the clamping device 200, adjust the position of the grinding head 330 through the adjustment assembly 500, and then adjust the stable assembly 600 so that the abutting seat 610 abuts against the abutting block 540;

[0147] S2. Grinding process. After the adjustment is completed, replace the standard part on the clamping device 200 with the ball valve spool to be machined, start the machining. The first driving device 310 drives the grinding head 330 to rotate, the second driving device 230 drives the ball valve spool to rotate around the axis of the through hole, and at the same time, the swing assembly 400 is used to control the left and right swing of the rotating ball valve spool to grind the entire outer surface of the ball valve spool.

[0148] First, adjust the grinding head 330 through the standard part to ensure the grinding accuracy of the ball valve spool. Through the rotation of the grinding head 330, the rotation of the ball valve spool around its own axis and the simultaneous swinging, the grinding of the outer surface of the ball valve spool is realized.

[0149] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0150] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. An adjustable ball valve spool grinding machine, Characterized in that, Comprising: A frame (100); A clamping device (200) for clamping the ball valve spool, and the clamping device (200) is provided with a clamping seat (210); A grinding device (300) for grinding the outer surface of the ball valve spool, and the grinding device (300) includes a first driving device (310), a mounting disc (320), and a grinding head (330); A swinging assembly (400) for the swinging of the clamping seat (210); An adjusting assembly (500) placed on the grinding device (300) and used for adjusting the grinding head (330); Wherein, the clamping device (200) is provided with an inner clamping block (220), the inner clamping block (220) abuts against the inner wall surface of the through hole of the ball valve spool, the clamping device (200) is provided with a second driving device (230), the second driving device (230) is installed on the clamping seat (210) and used for driving the ball valve spool to rotate, and the mounting disc (320) is installed and connected to the first driving device (310); The adjusting assembly (500) includes: A first adjusting cavity (510) installed on the mounting disc (320); A first piston (520) placed in the first adjusting cavity (510); A first telescopic rod (530) connected to the first piston (520); An abutting block (540) connected to the first telescopic rod (530); A mounting seat (550) connected to the end of the first telescopic rod (530); A second adjusting cavity (560) installed on the abutting block (540); A second piston (570) placed in the second adjusting cavity (560); A second telescopic rod (580) connected to the second piston (570); A stabilizing assembly (600) for stabilizing each abutting block (540); Wherein, the first adjusting cavity (510) communicates with the second adjusting cavity (560); The stabilizing assembly (600) includes: An abutting seat (610); A rotating shaft (620) placed at the middle position of the abutting seat (610); A moving seat (630) placed on the mounting disc (320); An adjusting lead screw (640) installed on the mounting disc (320) and adapted to the moving seat (630); An adjusting gear (650) installed on the adjusting lead screw (640) and having the same axis; A transmission gear (660) installed on the mounting disc (320) and meshing with the adjusting gear (650); An adjusting handle (670) installed on the mounting disc (320); A worm (680) installed and connected to the adjusting handle (670); A worm gear (690) installed on the mounting disc (320) and meshing with the worm (680); A feedback assembly (700) placed between the rotating shaft (620) and the moving seat (630); Wherein, the rotating shaft (620) is installed on the moving seat (630), and both ends of the abutting seat (610) abut against two adjacent abutting blocks (540).

2. The adjustable ball valve spool grinding machine according to claim 1, Characterized in that, The mounting seat (550) includes: The movable seat (551) is movably connected to both ends of the mounting seat (550); Among them, the grinding head (330) and the second telescopic rod (580) on the movable seat (551) correspond separately.

3. The easily adjustable ball valve core grinding machine according to claim 2, characterized in that, the feedback assembly (700) includes: sensors (710), several of which are arranged uniformly around the axis of the rotating shaft (620); ferromagnets (720), installed inside the rotating shaft (620); electromagnets (730), installed on the moving seat (630); Among them, the ferromagnet (720) is adapted to the electromagnet (730), and the sensor (710) is used to sense the magnetic field change between the ferromagnet (720) and the electromagnet (730).

4. The easily adjustable ball valve core grinding machine according to claim 3, characterized in that, the grinding device (300) further includes: a liquid dropping head (340), installed on the mounting seat (550); a valve seat (350), installed on the mounting seat (550) and connected to the liquid dropping head (340); a valve body (360), placed inside the valve seat (350); a connecting rod (370), hinged to the valve seat (350); Among them, the valve seat (350) is provided with an input port (351), the valve seat (350) is provided with an output port (352), the output port (352) is installed and connected to the liquid dropping head (340), the valve body (360) is provided with a flow channel (361), the flow channel (361) connects between the output port (352) and the input port (351), the flow channel (361) is provided with an adjustment groove (362) at one end close to the input port (351), one end of the connecting rod (370) is slidably hinged to the valve body (360), the other end of the connecting rod (370) is provided with a connecting seat (552), the connecting rod (370) is slidably hinged to the connecting seat (552), and the connecting seat (552) is installed on the movable seat (551).

5. The easily adjustable ball valve core grinding machine according to claim 4, characterized in that, the swinging assembly (400) includes: a swinging motor (410), installed on the frame (100); a cam seat (420), installed on the output shaft of the swinging motor (410); a swinging rod (430), installed between the cam seat (420) and the clamping seat (210); Among them, the clamping seat (210) is hinged to the frame (100).

6. A processing method applicable to the easily adjustable ball valve core grinding machine according to claim 5, characterized in that, the specific steps include: S1, adjust the grinding device (300), select a standard part corresponding to the ball valve core to be processed, clamp it through the clamping device (200), adjust the position of the grinding head (330) through the adjustment component (500), and then adjust the stabilizing component (600) to make the abutting seat (610) abut against the abutting block (540); S2. Grinding process. After the adjustment is completed, replace the standard part on the clamping device (200) with the ball valve spool to be processed, start the processing. The first driving device (310) drives the grinding head (330) to rotate, the second driving device (230) drives the ball valve spool to rotate around the axis of the through hole, and at the same time, the swing assembly (400) is used to control the left and right swing of the rotating ball valve spool to grind the entire outer surface of the ball valve spool.

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