A precision machining device and method for manufacturing ball valve fittings.

Abstract

This invention discloses a finishing device and method for ball valve fittings after manufacturing and forming, relating to the field of valve grinding technology. It includes a processing mounting component with a row of driving devices mounted on it. One row of driving devices is used for batch grinding of the inner wall of the valve seat tube. The driving devices have identical structures. A pressing clamping component is mounted on each driving device. A grinding and polishing component is mounted on each driving device. A floating detection component is mounted on the grinding and polishing component. By using a liquid supply component in conjunction with a pressing penetration component, automatic control can be achieved when adding polishing liquid, assisting in pressing down the grinding mounting column to promote the separation of the grinding fiber sleeve and the inner wall of the valve seat tube. This solves the problems of current finishing devices for ball valve fittings after manufacturing and forming, such as the inconvenience of indicating incorrect valve seat tube placement and the difficulty in allowing grinding particles containing polishing liquid to adhere to the polished fiber pad.

Description

Technical Field

[0001] This invention relates to the field of valve grinding technology, specifically to a precision machining device and method for ball valve fittings after manufacturing and forming. Background Technology

[0002] In actual ball valve fittings, the ball valve seat tube is a crucial component. Its inner side features an arc-shaped spherical surface adapted to the valve core. The smoothness of the inner wall of the ball valve seat tube directly affects subsequent sealing and corrosion resistance lifespan. After rough machining of the ball valve seat tube, fine machining, grinding, and polishing are required. This is typically done using a fiber pad combined with a polishing fluid containing abrasive particles. However, current ball valve fitting finishing equipment, when dealing with valve seat tubes where orientation is difficult to determine, is prone to incorrect placement, leading to grinding position deviations. Furthermore, when the placement is incorrect, the polishing fiber pad cannot adhere to one side of the spherical surface, and the sharp edge on the other side can easily damage the polishing fiber pad. It also makes it difficult to indicate the lifespan of the polishing fiber pad. Polishing fluid needs to be added during polishing, but with traditional methods, the fiber pad remains tightly adhered to the inner side of the arc-shaped spherical surface of the valve seat tube when the polishing fluid is added. This hinders the adhesion of the abrasive particles containing the polishing fluid to the polishing fiber pad, and makes it difficult to remove grinding impurities.

[0003] Therefore, we propose a precision machining device and method for ball valve fittings after manufacturing and forming. Summary of the Invention

[0004] The purpose of this invention is to provide a finishing device and method for ball valve fittings after manufacturing and forming, so as to solve the problems mentioned in the background art of the current finishing device for ball valve fittings after manufacturing and forming, which makes it inconvenient to indicate the incorrect placement direction of the valve seat tube and makes it inconvenient for abrasive particles containing polishing fluid to adhere to the polishing fiber pad.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision machining device for ball valve fittings after manufacturing and forming, comprising a machining mounting component, wherein a row of driving devices is mounted on the machining mounting component, and the row of driving devices is used for batch grinding of the inner wall of the valve seat tube; the row of driving devices has the same structure; a downward clamping component is mounted on the driving device; a grinding and polishing component is mounted on the driving device; a floating detection component is mounted on the grinding and polishing component; the floating detection component is used to indicate that the valve seat tube is reversed; a downward permeation component is mounted on the downward clamping component; a liquid supply component is mounted on the downward clamping component; the machining mounting component includes: a machining mounting shell and a vertical plate, wherein the vertical plate is fixedly mounted on the machining mounting shell.

[0006] Preferably, the processing and mounting component further includes: a row of marking lights, wherein a row of marking lights is fixedly mounted on the processing and mounting housing, and each row of marking lights is externally connected to a switch.

[0007] Preferably, the driving device includes: a driving mounting plate, a driving motor, a driving shaft, and a support frame. A row of driving mounting plates is fixedly mounted on the vertical plate, and the row of driving mounting plates has the same structure. A driving motor is fixedly mounted at the bottom of the driving mounting plate, and the output shaft of the driving motor passes through the driving mounting plate. A driving shaft is fixedly mounted on the output shaft of the driving motor, and the driving shaft has a hexagonal column structure. A spring is sleeved inside the driving shaft. A support frame is fixedly mounted on the driving mounting plate by bolts, and the support frame has two through slots. A hexagonal groove is opened at the top of the support frame, and the hexagonal groove at the top of the support frame is used to insert a valve seat tube.

[0008] Preferably, the driving device further includes a switch baffle, which is fixedly installed in a through groove on the rear side of the support frame.

[0009] Preferably, the pressing clamping component includes: a pressing slider and a pressing plate. A row of pressing sliders is slidably mounted on the vertical plate, and a tension spring is fixedly connected to the bottom of each row of pressing sliders. The ends of the tension springs at the bottom of each row of pressing sliders are fixedly mounted on the inner side of the vertical plate. A pressing plate is fixedly mounted on the top of each row of pressing sliders by bolts. The pressing plate is used to press down and fit against the top of the valve seat tube. The bottom of the pressing plate is provided with a countersunk hole.

[0010] Preferably, the grinding and polishing component includes: a grinding mounting post, a bearing, and a grinding fiber sleeve. The grinding fiber sleeve is fixedly mounted on the top of the grinding mounting post; the grinding mounting post is slidably sleeved on the drive shaft; a spring sleeved on the drive shaft connects the grinding mounting post and the drive shaft; the grinding fiber sleeve is used to grind and polish the inner side of the valve seat tube; and the inner ring of the bearing is fixedly sleeved on the grinding mounting post.

[0011] Preferably, the floating detection component includes: a floating plate and a floating switch, wherein the floating plate is fixedly installed on the outer ring of the bearing; the floating plate is located above the switch baffle; two floating switches are fixedly installed on the floating plate and are symmetrically arranged; the upper floating switch is used to press and adhere to the top of the rear through groove of the support frame, and the lower floating switch is used to press and adhere to the switch baffle; the two floating switches are electrically connected to a drive motor on the same side.

[0012] Preferably, the pressure penetration component includes: a pressure shaft and a pressure electromagnet, wherein the pressure shaft is slidably inserted into the pressure plate, and the bottom of the pressure plate has an arc-shaped structure; the pressure shaft is aligned with the drive shaft; a tension spring is sleeved on the outside of the pressure shaft, and the tension spring on the outside of the pressure shaft is connected between the pressure shaft and the pressure plate; a pressure electromagnet is fixedly installed on the top of the pressure shaft, and the pressure electromagnet is used to magnetically attract the pressure plate.

[0013] Preferably, the liquid supply component includes: branch pipes and main pipes; branch pipes are fixedly installed on a row of lower pressure plates, and the row of branch pipes are respectively connected to valve seat pipes; each of the row of branch pipes is provided with a solenoid valve, and the solenoid valves on the row of branch pipes are connected in series with the lower pressure electromagnets on the same side for switching power supply; a main pipe is fixedly installed on a row of branch pipes, and a polishing liquid tank is connected to the outside of the main pipe.

[0014] A method for precision machining of ball valve fittings after manufacturing and molding:

[0015] 1) Manually pull up the lower slide block, insert the valve seat tube into the support frame, release the lower slide block, and under the pull of the tension spring at the bottom of the lower slide block, the lower slide block drives the lower pressure plate to press down and clamp the valve seat tube;

[0016] 2) Under the pressure of the spring on the drive shaft, the grinding mounting column is pushed upward, which pushes the grinding fiber sleeve to elastically and tightly fit the inner hole of the valve seat tube;

[0017] 3) Control the drive motor to drive the hexagonal drive shaft to rotate, and drive the grinding mounting column to polish the inner hole of the grinding valve seat tube through the grinding fiber sleeve.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention employs a liquid supply component in conjunction with a pressure penetration component, which can automatically control the downward pressure of the grinding mounting column when adding polishing liquid. This facilitates the separation of the grinding fiber sleeve and the inner wall of the valve seat tube, preventing the particles in the polishing liquid from adhering to the outer surface of the grinding fiber sleeve when the grinding fiber sleeve is elastically squeezed and adhered to the inner wall of the valve seat tube. This allows the particles in the polishing liquid to adhere to the inner wall of the valve seat tube.

[0020] By using a floating detection component in conjunction with a grinding and polishing component, the rotation of the grinding fiber sleeve can be paused after the valve seat tube has been removed after grinding and polishing. This reduces splashing caused by the continuous rotation of the grinding fiber sleeve. The upper floating switch can automatically detect the removal of the valve seat tube and excessive wear of the grinding fiber sleeve. The lower floating switch can detect if the operator has placed the valve seat tube in the wrong direction, i.e., installed it backwards. This can automatically stop the machine and prevent the grinding fiber sleeve from being damaged by the sharp edge on the other side of the arc-shaped spherical surface of the valve hole due to continuous rotation.

[0021] The use of marking lights makes it easy to mark the valve seat tubes. For example, valve seat tubes with high inner wall roughness can be marked independently when grinding time is required, which makes it easier for workers to locate them and distinguish them later. The structure is simple to operate, and with the lower pressure plate, the valve seat tube can be pressed down and clamped for stable grinding and polishing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a ball valve accessory manufacturing and finishing device according to the present invention;

[0023] Figure 2 A cross-sectional view of a ball valve accessory manufacturing and finishing device according to the present invention after installing the valve seat tube;

[0024] Figure 3 This is a schematic diagram showing the installation position of the floating plate of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the machining and mounting component of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged view of the structure of region C in the middle;

[0027] Figure 6 This is a schematic diagram of the pressing clamping component structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the grinding and polishing part of the present invention;

[0029] Figure 8 For the present invention Figure 2 Enlarged view of the structure of region D in the middle;

[0030] Figure 9 This is a cross-sectional view of the pressure permeation element structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the liquid supply component structure of the present invention.

[0032] In the diagram: 1. Machining and mounting parts; 101. Machining and mounting shell; 1011. Vertical plate; 102. Marker light; 2. Drive unit; 201. Drive mounting plate; 202. Drive motor; 2021. Drive shaft; 203. Support frame; 204. Switch baffle; 3. Downward clamping parts; 301. Downward sliding block; 302. Downward pressure plate; 4. Grinding and polishing parts; 401. Grinding mounting column; 402. Bearing; 403. Grinding fiber sleeve; 5. Floating detection parts; 501. Floating plate; 502. Floating switch; 6. Downward permeation parts; 601. Downward pressure shaft; 602. Downward pressure electromagnet; 7. Liquid supply parts; 701. Branch pipe; 702. Main pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1 to 10 As shown:

[0035] This invention provides a technical solution: a precision machining device for ball valve fittings after manufacturing and forming, comprising a machining mounting component 1, on which a row of driving devices 2 are mounted, the row of driving devices 2 being used for batch grinding of the inner wall of the valve seat tube; the row of driving devices 2 having identical structures; a downward clamping component 3 being mounted on the driving device 2; a grinding and polishing component 4 being mounted on the driving device 2; a floating detection component 5 being mounted on the grinding and polishing component 4; the floating detection component 5 being used to indicate that the valve seat tube is reversed; a downward permeation component 6 being mounted on the downward clamping component 3; and a liquid supply component 7 being mounted on the downward clamping component 3; the machining mounting component 1 includes: a machining mounting shell 101 and a vertical plate 1011, the vertical plate 1011 being fixedly mounted on the machining mounting shell 101.

[0036] The machining mounting component 1 further includes: a marker light 102, a row of marker lights 102 fixedly mounted on the machining mounting housing 101, and each row of marker lights 102 is externally connected to a switch; the driving device 2 includes: a driving mounting plate 201, a driving motor 202, a driving shaft 2021, and a support frame 203, a row of driving mounting plates 201 fixedly mounted on the vertical plate 1011, and the structures on the row of driving mounting plates 201 are identical; a driving motor 202 is fixedly mounted at the bottom of the driving mounting plate 201, and the output shaft of the driving motor 202 passes through the driving mounting plate. 201; A drive shaft 2021 is fixedly mounted on the output shaft of the drive motor 202, and the drive shaft 2021 is a hexagonal column structure; a spring is sleeved inside the drive shaft 2021; a support frame 203 is fixedly mounted on the drive mounting plate 201 by bolts, and the support frame 203 is provided with two through slots; a hexagonal groove is opened on the top of the support frame 203, and the hexagonal groove on the top of the support frame 203 is used to insert a valve seat tube; the drive device 2 also includes: a switch baffle 204, which is fixedly installed in the through slot on the rear side of the support frame 203; lower The clamping component 3 includes: a downward pressing slider 301 and a downward pressing plate 302. A row of downward pressing sliders 301 are slidably mounted on the vertical plate 1011, and each row of downward pressing sliders 301 is fixedly connected to a tension spring at its bottom, with the ends of the tension springs at the bottom of each row of downward pressing sliders 301 fixedly mounted on the inner side of the vertical plate 1011. The top of each row of downward pressing sliders 301 is fixedly mounted to the downward pressing plate 302 by bolts. The downward pressing plate 302 is used to press down and fit against the top of the valve seat tube. The bottom of the downward pressing plate 302 is provided with a countersunk hole, and a row of driving devices 2 can facilitate batch grinding and polishing of the valve seat tube. The hole increases the efficiency of finishing, and the marking light 102 can be used to mark the valve seat tube. For example, some valve seat tubes with high inner wall roughness can be marked independently when grinding time is required, which makes it easier for workers to locate and distinguish them later. The structure is simple to operate. With the lower pressure plate 302, the valve seat tube can be pressed down and clamped for stable grinding and polishing. After grinding, the inner hole of each valve seat tube is checked manually. If there is a valve seat tube that needs to be ground again, the manual can control the marking light 102 at the corresponding valve seat tube to light up and mark it.

[0037] The grinding and polishing component 4 includes: a grinding mounting post 401, a bearing 402, and a grinding fiber sleeve 403. The grinding fiber sleeve 403 is fixedly mounted on the top of the grinding mounting post 401. The grinding mounting post 401 is slidably sleeved on the drive shaft 2021. A spring sleeved on the drive shaft 2021 connects the grinding mounting post 401 and the drive shaft 2021. The grinding fiber sleeve 403 is used to grind and polish the inner side of the valve seat tube. The inner ring of the bearing 402 is fixedly sleeved on the grinding mounting post 401. The floating detection component 5 includes: a floating plate 501 and a floating switch 502. The floating plate 501 is fixedly... The bearing 402 is mounted on its outer ring; the floating plate 501 is located above the switch baffle 204; two floating switches 502 are fixedly mounted on the floating plate 501, and the two floating switches 502 are symmetrically arranged; the upper floating switch 502 is used to press and adhere to the top of the rear through groove of the support frame 203, and the lower floating switch 502 is used to press and adhere to the switch baffle 204; the two floating switches 502 are electrically connected to the drive motor 202 on the same side. By using the floating detection element 5 in conjunction with the grinding and polishing element 4, the position of the grinding mounting column 401 can be detected in real time, and the position of the grinding mounting column 401 can be detected. The system can control and pause the rotation of the grinding fiber sleeve 403 after the valve seat tube has been polished and removed, reducing splashing caused by continuous rotation of the grinding fiber sleeve 403. The upper floating switch 502 can automatically detect the removal of the valve seat tube and excessive wear of the grinding fiber sleeve 403. Simultaneously, the lower floating switch 502 can detect incorrect placement of the valve seat tube by the operator, i.e., reverse installation, providing an automatic stop warning. This also prevents damage to the grinding fiber sleeve 403 from the sharp edge on the other side of the valve hole's arc-shaped spherical surface caused by continuous rotation. The structure is simple to inspect and can... The quick stop prompt works on the following principle: After the valve seat tube is installed in place, if the grinding fiber sleeve 403 is worn excessively and its thickness is reduced, the floating switch 502 located above the floating plate 501 will press against the inner side of the support frame 203. If the valve seat tube is inserted into the support frame 203 in the wrong direction, the arc-shaped spherical surface on the valve seat tube will stop the grinding fiber sleeve 403 on the side. When the valve seat tube is inserted into the support frame 203, it will excessively press down on the grinding mounting post 401, causing the floating switch 502 below to press against the switch baffle 204, thus controlling the drive motor 202 to stop and prompt a shutdown.

[0038] In Example 2, based on Example 1, the pressure penetrating component 6 includes: a pressure shaft 601 and a pressure electromagnet 602; the pressure shaft 601 is slidably inserted into the pressure plate 302, and the bottom of the pressure plate 302 has an arc-shaped structure; the pressure shaft 601 is aligned with the drive shaft 2021; a tension spring is sleeved on the outside of the pressure shaft 601, and the tension spring on the outside of the pressure shaft 601 is connected between the pressure shaft 601 and the pressure plate 302; the pressure electromagnet 602 is fixedly installed on the top of the pressure shaft 601, and the pressure... Electromagnet 602 is used to magnetically attract the lower pressure plate 302; the liquid supply component 7 includes: branch pipe 701 and main pipe 702, the main pipe 702 is connected to a polishing liquid pump via a hose, and the polishing liquid pump is connected to a polishing liquid tank; branch pipes 701 are fixedly installed on a row of lower pressure plates 302, and each row of branch pipes 701 is connected to a valve seat pipe; each row of branch pipes 701 is equipped with a solenoid valve, and each solenoid valve on the row of branch pipes 701 is connected in series with the lower pressure electromagnet 602 on the same side as a switching power supply; a fixed... The main pipe 702 is fixedly installed, and the liquid supply component 7 facilitates the addition of polishing fluid when the grinding fiber sleeve 403 is rotating to grind and polish the inner wall of the valve seat tube, ensuring polishing quality. At the same time, in conjunction with the downward permeation component 6, it can automatically control the downward pressure of the grinding mounting column 401 when adding polishing fluid, causing the grinding fiber sleeve 403 to separate from the inner wall of the valve seat tube. This avoids the problem that when the grinding fiber sleeve 403 is elastically squeezed and adhered to the inner wall of the valve seat tube, the particles in the polishing fluid are difficult to adhere to the outer surface of the grinding fiber sleeve 403. This facilitates the adhesion of polishing fluid particles to the inner wall of the valve seat tube, and also facilitates the flushing of impurities generated by long-term grinding on the outer surface of the grinding fiber sleeve 403 through the polishing fluid, which can further improve the polishing quality of the grinding fiber sleeve 403. When the solenoid valve on the control branch pipe 701 is opened, it also controls the downward pressure electromagnet 602 to magnetically attract the downward pressure plate 302, driving the downward pressure shaft 601 to move down and squeeze the grinding fiber sleeve 403, pushing the grinding mounting column 401 down together to facilitate the flow of polishing fluid.

[0039] A method for precision machining of ball valve fittings after manufacturing and molding:

[0040] 1) Manually pull up the lowering slider 301, insert the valve seat tube into the support frame 203, release the lowering slider 301, and under the pull of the tension spring at the bottom of the lowering slider 301, the lowering slider 301 drives the lowering plate 302 to press down and clamp the valve seat tube.

[0041] 2) Under the compression of the spring on the drive shaft 2021, the grinding mounting column 401 is pushed upward, and the grinding fiber sleeve 403 is pushed to elastically and tightly fit the inner hole of the valve seat tube;

[0042] 3) Control the drive motor 202 to drive the hexagonal drive shaft 2021 to rotate, and drive the grinding mounting column 401 to polish the inner hole of the grinding valve seat tube through the grinding fiber sleeve 403.

[0043] The working principle of this embodiment is as follows: First, when the valve seat tube needs to be ground, manually pull up the lowering slider 301 to insert the valve seat tube into the support frame 203. Then, release the lowering slider 301. Under the pull of the tension spring at the bottom of the lowering slider 301, the lowering slider 301 drives the lowering plate 302 to press down and clamp the valve seat tube. At this time, with the spring compression on the drive shaft 2021, the grinding mounting column 401 is pushed upward, so that the grinding fiber sleeve 403 elastically and tightly fits the inner hole of the valve seat tube. Driven by the drive motor 202, the hexagonal drive shaft 2021 is rotated, which in turn drives the grinding mounting column 401 to polish the inner hole of the valve seat tube through the grinding fiber sleeve 403. After the valve seat tube is installed in place, if the grinding fiber sleeve 403 is worn excessively and its thickness is reduced, the spring compression on the drive shaft 2021 will push the grinding mounting column 401 upward, driving the floating plate 501 to move upward as well. At this time, the floating switch 502 located above the floating plate 501 will squeeze... When the inner side of the support frame 203 is pressed, the drive motor 202 will stop as a warning. Similarly, if the polished valve seat tube is removed, the grinding mounting post 401 will lose its obstruction, and the floating switch 502 on the upper part of the floating plate 501 will press the inner side of the support frame 203. If the valve seat tube is inserted into the support frame 203 in the wrong direction, the arc-shaped spherical surface on the valve seat tube will stop the grinding fiber sleeve 403. When the valve seat tube is inserted into the support frame 203, it will press the grinding mounting post 401 too much, causing the floating switch 502 below to press the switch baffle 204, which will control the drive motor 202 to stop again as a warning. This allows the staff to make timely adjustments and makes full use of the valve seat tube structure, avoiding the problem of insufficient flexibility in manual identification. After the grinding is completed, the staff will check the inner hole of each valve seat tube. If a valve seat tube needs to be ground again, the staff can control the corresponding marking light 102 at the valve seat tube to light up as a marker, which will facilitate subsequent identification.

[0044] When polishing fluid needs to be added during the polishing and grinding process, the solenoid valve on the branch pipe 701 can be opened to guide the polishing fluid to the grinding fiber sleeve 403 through the branch pipe 701. At the same time, when the solenoid valve on the branch pipe 701 is opened, the lowering electromagnet 602 is also controlled to magnetically attract the lowering plate 302, which drives the lowering shaft 601 to move down and squeeze the grinding fiber sleeve 403, pushing the grinding mounting column 401 down together, so that the grinding fiber sleeve 403 and the inner wall of the valve seat tube are separated, which facilitates the flow of polishing fluid.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A finishing device for ball valve fittings after manufacturing and forming, comprising a machining mounting component (1), wherein a row of driving devices (2) is mounted on the machining mounting component (1), characterized in that: A row of drive devices (2) is used for batch grinding of the inner wall of valve seat tubes; the drive devices (2) have the same structure; a pressure clamping member (3) is installed on the drive device (2); The drive device (2) is equipped with a grinding and polishing component (4); the grinding and polishing component (4) is equipped with a floating detection component (5); the floating detection component (5) is used to indicate that the valve seat tube is reversed; A pressure-down penetrating element (6) is installed on the pressure-down clamping member (3); a liquid supply element (7) is installed on the pressure-down clamping member (3); The processing and mounting component (1) includes: a processing and mounting shell (101) and a vertical plate (1011), and the vertical plate (1011) is fixedly mounted on the processing and mounting shell (101). The driving device (2) includes: a driving mounting plate (201), a driving motor (202), a driving shaft (2021), and a support frame (203); the driving device (2) also includes: a switch baffle (204), which is fixedly installed in the through groove on the rear side of the support frame (203); the pressing clamp (3) includes: a pressing slider (301) and a pressing plate (302); the grinding and polishing part (4) includes: a grinding mounting post (401), a bearing (402), and a grinding fiber sleeve (403); The floating detection component (5) includes a floating plate (501) and a floating switch (502). The floating plate (501) is fixedly installed on the outer ring of the bearing (402). The floating plate (501) is located above the switch baffle (204). Two floating switches (502) are fixedly installed on the floating plate (501) and are symmetrically arranged. The upper floating switch (502) is used to press and adhere to the top of the rear through groove of the support frame (203), and the lower floating switch (502) is used to press and adhere to the switch baffle (204). The two floating switches (502) are electrically connected to the drive motor (202) on the same side. The pressure penetrating component (6) includes: a pressure shaft (601) and a pressure electromagnet (602). The pressure shaft (601) is slidably inserted into the pressure plate (302), and the bottom of the pressure plate (302) is an arc-shaped structure. The pressure shaft (601) is aligned with the drive shaft (2021). A tension spring is sleeved on the outside of the pressure shaft (601), and the tension spring on the outside of the pressure shaft (601) is connected between the pressure shaft (601) and the pressure plate (302). The pressure electromagnet (602) is fixedly installed on the top of the pressure shaft (601), and the pressure electromagnet (602) is used to magnetically attract the pressure plate (302).

2. The precision machining device for ball valve fittings after manufacturing and forming, as described in claim 1, is characterized in that: The processing and mounting component (1) further includes: a marker light (102), a row of marker lights (102) is fixedly mounted on the processing and mounting housing (101), and each row of marker lights (102) is externally connected to a switch.

3. The precision machining device for ball valve fittings after manufacturing and forming, as described in claim 1, is characterized in that: A row of drive mounting plates (201) is fixedly installed on the vertical plate (1011), and the structure on the row of drive mounting plates (201) is the same; a drive motor (202) is fixedly installed at the bottom of the drive mounting plate (201), and the output shaft of the drive motor (202) passes through the drive mounting plate (201); a drive shaft (2021) is fixedly installed on the output shaft of the drive motor (202), and the drive shaft (2021) is a hexagonal column structure; a spring is sleeved inside the drive shaft (2021); a support frame (203) is fixedly installed on the drive mounting plate (201) by bolts, and the support frame (203) is provided with two through slots; a hexagonal groove is opened at the top of the support frame (203), and the hexagonal groove at the top of the support frame (203) is used to insert a valve seat tube.

4. The precision machining device for ball valve fittings after manufacturing and forming, as described in claim 1, is characterized in that: A row of downward sliding blocks (301) is slidably installed on the vertical plate (1011), and a tension spring is fixedly connected to the bottom of each row of downward sliding blocks (301), and the ends of the tension springs at the bottom of each row of downward sliding blocks (301) are fixedly installed on the inner side of the vertical plate (1011); a downward pressing plate (302) is fixedly installed on the top of each row of downward sliding blocks (301) by bolts; the downward pressing plate (302) is used to press down and fit the top of the valve seat tube; the bottom of the downward pressing plate (302) is provided with a countersunk hole.

5. The precision machining device for ball valve fittings after manufacturing and forming, as described in claim 1, is characterized in that: A grinding fiber sleeve (403) is fixedly installed on the top of the grinding mounting post (401); the grinding mounting post (401) is slidably sleeved on the drive shaft (2021); a spring sleeved on the drive shaft (2021) is connected between the grinding mounting post (401) and the drive shaft (2021); the grinding fiber sleeve (403) is used to grind and polish the inner side of the valve seat tube; the inner ring of the bearing (402) is fixedly sleeved on the grinding mounting post (401).

6. The precision machining device for ball valve fittings after manufacturing and forming, as described in claim 1, is characterized in that: The liquid supply component (7) includes: branch pipes (701) and main pipes (702). Branch pipes (701) are fixedly installed on a row of lower pressure plates (302), and the row of branch pipes (701) are connected to valve seat pipes respectively. Solenoid valves are provided on a row of branch pipes (701), and the solenoid valves on a row of branch pipes (701) are connected in series with the lower pressure electromagnets (602) on the same side for switching power supply. Main pipes (702) are fixedly installed on a row of branch pipes (701), and polishing liquid tanks are connected to the outside of the main pipes (702).

7. A method for finishing ball valve fittings after molding, using the finishing apparatus for ball valve fittings as described in claim 1, characterized in that: The steps include: 1) Manually pull up the lowering slider (301), insert the valve seat tube into the support frame (203), release the lowering slider (301), and under the pull of the tension spring at the bottom of the lowering slider (301), the lowering slider (301) drives the lowering plate (302) to press down and clamp the valve seat tube; 2) Under the pressure of the spring on the drive shaft (2021), the grinding mounting column (401) is pushed upward, and the grinding fiber sleeve (403) is pushed to elastically and tightly fit the inner hole of the valve seat tube; 3) Control the drive motor (202) to drive the hexagonal drive shaft (2021) to rotate, and drive the grinding mounting column (401) to polish the inner hole of the grinding valve seat tube through the grinding fiber sleeve (403).

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