A polishing device and process for a soft and hard sealing ball valve body after casting forming

Abstract

The present application relates to the technical field of polishing equipment, in particular to a polishing device and process for soft and hard sealing ball valve body after casting forming, which comprises a base, a mounting frame, a driving motor, a rotating shaft, a main wheel, a plurality of sliding rods, a plurality of friction blocks, a placing frame, a clamping seat, two clamping plates and two first hydraulic rods, the driving motor drives the main wheel to rotate and flings out the sliding rods stored in the inside of the main wheel, the ball valve body is polished and ground by the friction blocks outside the sliding rods, the friction blocks have circular arc chamfers, the inside of the ball valve is ground in high-speed rotation, at the same time, the sliding rods can be flexibly contracted and extended for different sizes of ball valves, and have high flexibility; the device realizes the change of size through the sliding rods which are flexibly contracted, enhances the flexibility, can adapt to ball valves in a certain size range, and thus solves the problems of fixed size of the polishing device, low applicability and high polishing and grinding cost.

Description

Technical Field

[0001] This invention relates to the field of polishing equipment technology, and in particular to a polishing device and process for a soft and hard sealing ball valve body after casting. Background Technology

[0002] Polishing the valve body after casting is a crucial step in ensuring the smoothness and precision of the valve body surface, which is essential for the sealing performance of the ball valve. The valve body of soft and hard seal ball valves is usually manufactured using casting or forging processes. After casting, the valve body needs to be machined to ensure that the internal geometry and flow channel design meet the requirements. Polishing is an important step in this process, involving the removal of burrs, defects, and uneven parts on the valve body surface, thereby improving the surface smoothness and overall dimensional accuracy.

[0003] The main difficulty in polishing ball valves lies in the complexity of their internal polishing, especially the polishing of the base surface on which the valve body is installed. Existing polishing devices can polish the internal base surface, but their dimensions are all fixed. For ball valves of different sizes, additional polishing devices need to be manufactured, resulting in low applicability and increased production costs. Summary of the Invention

[0004] The purpose of this invention is to provide a polishing device and process for the casting of a soft and hard sealing ball valve body, aiming to solve the problems of fixed size, low applicability, and high polishing cost of existing polishing devices.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a polishing device for a soft and hard sealing ball valve body after casting, comprising a base, a mounting frame, a drive motor, a rotating shaft, a main wheel, multiple sliding rods, multiple friction blocks, a placement frame, a clamping seat, two clamping plates, and two first hydraulic rods. The mounting frame is fixed above the base; the drive motor is fixed to the side of the mounting frame; the rotating shaft is fixed to the output end of the drive motor; the main wheel is fixed on the rotating shaft; the multiple sliding rods are slidably disposed in the main wheel; the multiple friction blocks are fixed to the outside of the multiple sliding rods; the placement frame is disposed on the base; the clamping seat is disposed on the placement frame; the two clamping plates are slidably disposed in the clamping seat; the two first hydraulic rods are fixedly connected to the clamping seat and to the two clamping plates.

[0006] The polishing device for the soft and hard sealing ball valve body after casting further includes a second hydraulic rod and a sliding seat. The second hydraulic rod is fixed to the side of the mounting frame. The sliding seat and the output end of the second hydraulic rod are fixedly connected and disposed below the placement frame.

[0007] The polishing device for the soft and hard sealing ball valve body after casting also includes a steering motor and a steering wheel. The steering motor is fixed in the sliding seat. The steering wheel and the output end of the steering motor are fixedly connected and fixedly connected to the placement frame.

[0008] The polishing device for the soft and hard sealing ball valve body after casting further includes a first electromagnet and a plurality of first magnetic blocks. The first electromagnet is disposed in the main wheel. The plurality of first magnetic blocks and the plurality of sliding rods are fixedly connected and located on the side of the sliding rods away from the friction blocks.

[0009] The polishing device for the soft and hard sealing ball valve body after casting also includes a slide groove and a buffer pad. The slide groove is fixed on the side of the base near the sliding seat, and the buffer pad is fixed in the slide groove.

[0010] The polishing device for the soft and hard sealing ball valve body after casting also includes an infrared sensor, which is fixed above the clamping seat.

[0011] On the other hand, a polishing process for a soft and hard seal ball valve body after casting is applied to the aforementioned polishing device for a soft and hard seal ball valve body after casting. The process includes: placing the valve body of the ball valve to be polished into the clamping seat; activating two first hydraulic rods to clamp and fix the valve body of the ball valve to be polished using two clamping plates; storing multiple sliding rods in the main wheel, then pushing the placement frame to extend the main wheel into the valve body of the ball valve to be polished; activating the drive motor to throw the sliding rods out using centrifugal force, allowing the friction block to adhere to the inside of the valve body for polishing.

[0012] This invention discloses a polishing device for a soft-seal and hard-seal ball valve body after casting. The base provides overall support, and the mounting bracket houses the drive motor. The drive motor rotates the main wheel, which then extends the sliding rod housed within it. The ball valve body is polished by friction blocks on the outer side of the sliding rod. These friction blocks have rounded chamfers and, during high-speed rotation, fully conform to the interior of the ball valve for polishing. Furthermore, the sliding rod can flexibly retract and extend to accommodate ball valves of different sizes, exhibiting high flexibility. A placement bracket holds the clamping seat, which has two first hydraulic rods on its inner side. These two first hydraulic rods push two clamping plates to extend, clamping the connecting threads on both sides of the ball valve and fixing it for easy polishing. This device, through the flexible retraction of the sliding rod, achieves size variations, enhancing flexibility and adapting to a certain range of ball valve sizes. This solves the problems of fixed-size polishing devices, low applicability, and high polishing costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the polishing device after the casting of a soft and hard sealing ball valve body according to the first embodiment of the present invention.

[0015] Figure 2 This is a cross-sectional view of a polishing device after the casting of a soft and hard sealing ball valve body, according to the first embodiment of the present invention.

[0016] Figure 3 This is a flowchart of the polishing process after the casting of a soft and hard sealing ball valve body, according to the second embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the polishing device after the casting of a soft and hard sealing ball valve body, according to the third embodiment of the present invention.

[0018] Figure 5 This is a side view of a polishing device after the casting of a soft and hard sealing ball valve body, according to the third embodiment of the present invention.

[0019] Figure 6 This is a cross-sectional view of a polishing device after the casting of a soft and hard sealing ball valve body, according to the third embodiment of the present invention.

[0020] 101-Base, 102-Mounting bracket, 103-Drive motor, 104-Rotating shaft, 105-Main wheel, 106-Sliding rod, 107-Friction block, 108-Placement bracket, 109-Clamping seat, 110-Clamping plate, 111-First hydraulic rod, 112-Second hydraulic rod, 113-Sliding seat, 114-Steering motor, 115-Steering wheel, 116-First electromagnet, 117-First magnetic block, 118-Slide groove, 119-Buffer pad, 120-Infrared sensor, 201-Rotary motor, 202-Rotating arm, 203-Ball seat, 204-Ball head rod, 205-Second electromagnet, 206-Second magnetic block. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] For the first embodiment, please refer to... Figures 1-4 , Figure 1This is a schematic diagram of the polishing device after the valve body of a soft and hard sealing ball valve is cast according to the first embodiment of the present invention. Figure 2 This is a cross-sectional view of a polishing device for a soft and hard sealing ball valve body after casting, according to the first embodiment of the present invention. Figure 3 This is a flowchart of the polishing process after casting a soft and hard sealing ball valve body according to the second embodiment of the present invention. Figure 4 This is a schematic diagram of the polishing device after the casting of a soft and hard sealing ball valve body, according to the third embodiment of the present invention.

[0023] This invention provides a polishing device for the casting of a soft and hard sealing ball valve body: including a base 101, a mounting bracket 102, a drive motor 103, a rotating shaft 104, a main wheel 105, multiple sliding rods 106, multiple friction blocks 107, a placement bracket 108, a clamping seat 109, two clamping plates 110, two first hydraulic rods 111, a second hydraulic rod 112, a sliding seat 113, a steering motor 114, a steering wheel 115, a first electromagnet 116, multiple first magnetic blocks 117, a sliding groove 118, a buffer pad 119, and an infrared sensor 120.

[0024] The aforementioned solution solves the problems of fixed size, low applicability, and high polishing cost of the polishing device. It is understood that the aforementioned solution can achieve size changes through the flexible retractable sliding rod 106, which enhances flexibility, can adapt to ball valves of a certain size range, and can also facilitate the installation and disassembly of the ball valve body.

[0025] In this embodiment, the mounting bracket 102 is fixed above the base 101; the drive motor 103 is fixed to the side of the mounting bracket 102; the rotating shaft 104 is fixed to the output end of the drive motor 103; the main wheel 105 is fixed on the rotating shaft 104; a plurality of sliding rods 106 are slidably disposed in the main wheel 105; a plurality of friction blocks 107 are fixed on the outside of the plurality of sliding rods 106; the placement bracket 108 is disposed on the base 101; the clamping seat 109 is disposed on the placement bracket 108; two clamping plates 110 are slidably disposed in the clamping seat 109; two first hydraulic rods 111 are fixedly connected to the clamping seat 109 and to the two clamping plates 110; the base 101 provides overall support, the mounting bracket 102 is used to mount the drive motor 103, and the drive motor 103 drives the main wheel 105. The device rotates and ejects the sliding rod 106 housed within it. The friction block 107 on the outer side of the sliding rod 106 polishes the ball valve body to be polished. The friction block 107 has a rounded chamfer, which fully fits the inside of the ball valve during high-speed rotation and polishes it. At the same time, the sliding rod 106 can flexibly retract and extend for ball valves of different sizes, exhibiting high flexibility. The placement frame 108 is used to place the clamping seat 109. There are two first hydraulic rods 111 on the inner side of the clamping seat 109. The two first hydraulic rods 111 push the two clamping plates 110 to extend, clamping the connecting threads on both sides of the ball valve and fixing the ball valve for easy polishing. This device achieves size changes through the flexible retraction of the sliding rod 106, enhancing flexibility and adapting to ball valves of a certain size range. This solves the problems of fixed size, low applicability, and high polishing cost of polishing devices.

[0026] The second hydraulic rod 112 is fixed to the side of the mounting bracket 102; the sliding seat 113 is fixedly connected to the output end of the second hydraulic rod 112 and is located below the placement bracket 108; the second hydraulic rod 112 is used to pull the sliding seat 113 to move, and the sliding seat 113 drives the placement bracket 108 to move, moving the ball valve body to the outside of the main wheel 105.

[0027] Secondly, the steering motor 114 is fixed in the sliding seat 113; the steering wheel 115 is fixedly connected to the output end of the steering motor 114 and to the mounting bracket 108; the steering motor 114 is used to drive the steering wheel 115 to rotate and control the direction of the mounting bracket 108. When it rotates to face away from the mounting bracket 102, the ball valve body can be easily installed and removed.

[0028] Furthermore, the first electromagnet 116 is disposed in the main wheel 105; a plurality of first magnetic blocks 117 and a plurality of sliding rods 106 are fixedly connected and located on the side of the sliding rods 106 away from the friction block 107; the plurality of sliding rods 106 are attracted to the first electromagnet 116 by the plurality of first magnetic blocks 117, and then stored in the main wheel 105 to complete the reset, making it convenient to be placed into the ball valve body. When grinding, the electromagnet is de-energized, allowing the sliding rods 106 to slide out for grinding.

[0029] Then, the slide 118 is fixed to the side of the base 101 near the sliding seat 113; the buffer pad 119 is fixed in the slide 118; the slide 118 is used to receive the fallen ball valve and transport it to the next process, and the buffer pad 119 is used to buffer and protect the ball valve.

[0030] Finally, the infrared sensor 120 is fixed above the clamping seat 109; the infrared sensor 120 is used to identify whether the ball valve extends into the clamping seat 109 and to control the first hydraulic rod 111 to extend.

[0031] During use, the base 101 provides overall support, and the mounting bracket 102 is used to mount the drive motor 103. The drive motor 103 drives the main wheel 105 to rotate, throwing out the sliding rod 106 housed inside it. The ball valve body to be polished is then polished by the friction block 107 on the outside of the sliding rod 106. The friction block 107 has a rounded chamfer, which fully fits the inside of the ball valve during high-speed rotation and polishes it. Simultaneously, for ball valves of different sizes, the sliding rod... The rod 106 can retract and extend flexibly, exhibiting high flexibility. The placement frame 108 is used to place the clamping seat 109. The clamping seat 109 has two first hydraulic rods 111 on its inner side. The two first hydraulic rods 111 push the two clamping plates 110 to extend, clamping the connecting threads on both sides of the ball valve to fix the ball valve for easy polishing. The second hydraulic rod 112 is used to pull the sliding seat 113 to move. The sliding seat 113 drives the placement frame 108 to move, thus opening the ball valve. The body moves to the outside of the main wheel 105; the steering motor 114 drives the steering wheel 115 to rotate, controlling the direction of the placement bracket 108. When it rotates to face away from the mounting bracket 102, the ball valve body can be easily installed and removed; multiple sliding rods 106 are attracted to the first electromagnet 116 by multiple first magnetic blocks 117, and then stored in the main wheel 105, completing the reset, making it easy to put into the ball valve body. When grinding, the electromagnet is de-energized, allowing the sliding rods 106 to move out of the main wheel 105. 6. The ball valve slides out for polishing; the slide groove 118 is used to receive the fallen ball valve and transport it to the next process; the buffer pad 119 is used to buffer and protect the ball valve; the infrared sensor 120 is used to identify whether the ball valve extends into the clamping seat 109 and control the first hydraulic rod 111 to extend; this device achieves size change through the flexible retractable sliding rod 106, which enhances flexibility and can adapt to ball valves of a certain size range, thereby solving the problems of fixed size of polishing device, low applicability, and high polishing cost.

[0032] Third embodiment, please refer to Figure 5 , Figure 5 This is a side view of a polishing device after the casting of a soft and hard sealing ball valve body, according to the third embodiment of the present invention.

[0033] Based on the first embodiment, the present invention provides a polishing process for a soft and hard sealing ball valve body after casting, applied to the aforementioned polishing device for a soft and hard sealing ball valve body after casting. The process includes: placing the valve body of the ball valve to be polished into the clamping seat 109 (this step can be performed manually or by a robotic arm); activating two first hydraulic rods 111 to clamp and fix the valve body of the ball valve to be polished using two clamping plates 110 (this step is used to fix the ball valve body to be polished); storing multiple sliding rods 106 in the main wheel 105, then pushing the placement frame 108 to extend the main wheel 105 into the interior of the ball valve body to be polished, and polishing it after it extends inside; activating the drive motor 103 to throw the sliding rods 106 out using centrifugal force, allowing the friction block 107 to adhere to the interior of the valve body for polishing; the sliding distance of the sliding rods 106 is determined by the size of the ball valve, allowing for flexible contact with the interior of the ball valve.

[0034] Third embodiment, please refer to Figure 6 , Figure 6 This is a cross-sectional view of a polishing device after the casting of a soft and hard sealing ball valve body, according to the third embodiment of the present invention.

[0035] Based on the second embodiment, the polishing device for the soft and hard sealing ball valve body after casting of the present invention further includes a rotary motor 201, a rotary arm 202, a ball seat 203, a ball head rod 204, a second electromagnet 205, and a second magnetic block 206.

[0036] The rotary motor 201 is fixed to the placement frame 108; the rotary arm 202 is fixed to the output end of the rotary motor 201; the ball seat 203 is fixed to the end of the rotary arm 202; the ball head rod 204 and the ball seat 203 are rotatably connected and fixedly connected to the clamping seat 109; the rotary motor 201 is used to drive the rotary arm 202 to rotate, the ball seat 203 is at the end of the rotary arm 202, and rotates around the rotary motor 201 in a circular motion; the clamping seat 109 is connected to the ball seat 203 through the ball head rod 204, and the ball head rod 204 itself has the ability to retract and extend; when it makes a circular motion, the clamping seat 109 follows the motion, but the ball valve body it clamps is on the outside of the main wheel 105, which will cause the ball valve body to rotate around the main wheel 105; while rotating, the friction block 107 continues to polish and grind its interior, which can expand the polishing and grinding range.

[0037] The second electromagnet 205 is fixed in the ball seat 203; the second magnetic block 206 is fixed on the ball head rod 204; after the second electromagnet 205 is energized, it attracts the second magnetic block 206, and returns the ball head rod 204 to its position, making it horizontal, so that the ball valve body can be moved to the outside of the main wheel 105. The same applies when taking it out.

[0038] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A polishing device for the casting of a soft and hard sealing ball valve body, characterized in that, The device includes a base, a mounting frame, a drive motor, a rotating shaft, a main wheel, multiple sliding rods, multiple friction blocks, a placement frame, a clamping seat, two clamping plates, and two first hydraulic rods. The mounting frame is fixed above the base; the drive motor is fixed to the side of the mounting frame; the rotating shaft is fixed to the output end of the drive motor; the main wheel is fixed to the rotating shaft; and the multiple sliding rods are slidably disposed in the main wheel. Multiple friction blocks are fixed to the outside of multiple sliding rods; the placement frame is disposed on the base; the clamping seat is disposed on the placement frame; two clamping plates are slidably disposed in the clamping seat; two first hydraulic rods are fixedly connected to the clamping seat and to the two clamping plates; the polishing device further includes a first electromagnet and multiple first magnetic blocks, the first electromagnet being disposed in the main wheel; multiple first magnetic blocks are fixedly connected to multiple sliding rods and located on the side of the sliding rods away from the friction blocks; the polishing device further includes an infrared sensor, the infrared sensor being fixed above the clamping seat; the polishing device further includes a rotary motor, a rotary arm, a ball seat, a ball head rod, a second electromagnet, and a second magnetic block; the rotary motor is fixed to the placement frame; the rotary arm is fixed to the input of the rotary motor. The ball seat is fixed to the end of the rotating arm; the ball head rod and the ball seat are rotatably connected and fixedly connected to the clamping seat; the rotary motor drives the rotating arm to rotate, and the ball seat at the end of the rotating arm rotates in a circular motion around the rotary motor. The clamping seat is connected to the ball seat through the ball head rod, which has the ability to retract and extend; during the circular motion, the clamping seat follows the motion, and the ball valve body it clamps rotates around the main wheel on the outside of the main wheel. The friction block polishes and grinds its interior, expanding the polishing and grinding range; the second electromagnet is fixed in the ball seat; the second magnetic block is fixed on the ball head rod; after the second electromagnet is energized, it attracts the second magnetic block, returning the ball head rod to its horizontal position, making it convenient to move the ball valve body to the outside of the main wheel.

2. The polishing device for the cast body of a soft and hard sealing ball valve as described in claim 1, characterized in that, The polishing device for the cast body of a soft and hard sealing ball valve further includes a second hydraulic rod and a sliding seat. The second hydraulic rod is fixed to the side of the mounting frame. The sliding seat and the output end of the second hydraulic rod are fixedly connected and disposed below the placement frame.

3. The polishing device for the cast body of a soft and hard sealing ball valve as described in claim 2, characterized in that, The polishing device for the soft and hard sealing ball valve body after casting also includes a steering motor and a steering wheel. The steering motor is fixed in the sliding seat. The steering wheel and the output end of the steering motor are fixedly connected and fixedly connected to the placement frame.

4. The polishing device for the cast body of a soft and hard sealing ball valve as described in claim 3, characterized in that, The polishing device for the soft and hard sealing ball valve body after casting also includes a slide groove and a buffer pad. The slide groove is fixed on the side of the base near the sliding seat; the buffer pad is fixed in the slide groove.

5. A polishing process for the cast body of a soft-seal and hard-seal ball valve, applied to the polishing apparatus for the cast body of a soft-seal and hard-seal ball valve as described in any one of claims 1 to 4. Its features are, This includes: placing the valve body of the ball valve to be polished into the clamping seat; Activate the two first hydraulic rods to clamp and fix the valve body of the ball valve to be polished through the two clamping plates; The sliding rods are housed in the main wheel, and then the placement frame is pushed to insert the main wheel into the valve body of the ball valve to be polished. Start the drive motor, and use centrifugal force to throw the sliding rod out, so that the friction block fits into the inside of the valve body and polishes it.

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