Grinding and polishing device for valve sealing element machining

Abstract

The utility model relates to the technical field of valve manufacturing, in particular to a grinding and polishing device for machining a valve sealing element, and aims to solve the technical problems that the fixing range is small and the fixing effect is poor in the mode that the sealing element is pressed and fixed by hands when the valve sealing element is ground and polished. According to the technical scheme, the grinding and polishing device for machining the valve sealing element comprises a workbench, a shaft seat, a storage bin, a support, a grinding machine tool, a rotating mechanism, a pressing mechanism and a telescopic adjusting mechanism; by means of the rotatable pressing mechanism, the surface of the sealing element can be sequentially pressed and fixed in two directions, polishing treatment on the surface of the sealing element through a polishing machine is facilitated, the locking range is wide, the locking effect is good, and the problems that when the valve sealing element is polished and polished, the fixing range is small, and the sealing element cannot be fixed by pressing the sealing element with hands are solved. And the fixing effect is not good.

Description

Technical Field

[0001] The utility model relates to the technical field of valve manufacturing, in particular to a grinding and polishing device for processing valve sealing parts. Background Art

[0002] Valve seals are important components of valves. The main sealing parts of valves include the contact between the opening and closing parts and the sealing surfaces of the valve seat, the matching parts between the packing and the valve stem and the stuffing box, and the connection between the valve body and the valve cover. Valve seals are generally made by molding and punching. However, after demolding, the valve seals will have a rough surface and burrs on the edges, which require grinding, polishing, deburring and other treatments to ensure the sealing effect of the valve seals.

[0003] Because the metal ring of the valve seal is small in size, it is difficult to process it with a conventional large workpiece polishing machine. Therefore, the grinding and polishing method used is that the worker holds a small grinding tool in one hand and presses and fixes the seal with the other hand to grind and polish. However, in this grinding and polishing method, the hand that fixes the valve seal can generally only press two or three places in a small range on the seal surface with the fingers, which has a poor fixing effect and affects the grinding quality and efficiency.

[0004] Therefore, in view of the fact that the method of fixing the valve seal by pressing it by hand during grinding and polishing has a small fixing range and poor fixing effect, a grinding and polishing device for the valve seal can be designed that has an additional locking method in addition to fixing by pressing it by hand to ensure that the valve seal does not move during grinding and polishing. Utility Model Content

[0005] In order to overcome the problem of small fixing range and poor fixing effect of the method of pressing the seal by hand to fix the seal during grinding and polishing of the valve seal.

[0006] The technical solution of the utility model is: a grinding and polishing device for valve seal processing, including a workbench, a shaft seat, a storage bin, a bracket, a grinding machine, a rotating mechanism, a clamping mechanism, and a telescopic adjustment mechanism; the workbench is a rectangular table structure and one side of the upper end is fixedly connected to the shaft seat, the valve sealing ring is horizontally placed on the upper surface of the workbench, and the side walls around the workbench are provided with storage bins adapted to the grinding machine, two groups of brackets on the left and right sides of the shaft seat are fixedly installed on the upper end of the workbench, a rotating mechanism is installed on the shaft seat, a clamping mechanism is installed on the power output end of the rotating mechanism, and a telescopic adjustment mechanism is arranged between the clamping mechanism and the rotating mechanism.

[0007] Preferably, after placing the valve seal on the workbench, the rotating mechanism drives the clamping mechanism to rotate to one side to squeeze and fix one side of the seal, and the other side of the seal is pressed and fixed by hand, and then it can be polished by a grinding machine. Similarly, after processing this side, the rotating mechanism drives the clamping mechanism to rotate to the other side to squeeze and fix the other side of the seal, and the exposed part of the seal is pressed and fixed by hand, and then it is polished again by a grinding machine.

[0008] Preferably, four chip bins are provided at the four corners of the upper end of the workbench and surround the outer side of the valve sealing ring. The bottom of the chip bin has a discharge port that passes through the bottom surface of the workbench and a rubber plug is embedded in the discharge port. The metal powder generated by the grinding and polishing of the valve seal is concentrated in the chip bin through manual cleaning. After the polishing work is completed, the rubber plug is pulled out and all the chips can fall naturally, which is convenient for unified recycling and treatment later.

[0009] Preferably, the grinding machine includes a handle, a telescopic rod, and a rubber grinding head; the handle is a hollow structure and is movably connected to the telescopic rod inside, the end of the telescopic rod outside the handle has a drive motor and the rubber grinding head is connected to the power output element of the drive motor, and the rubber grinding head is made of rubber mixed with corundum. After taking the grinding machine out of the storage bin, pull the telescopic rod out of the handle and tighten it with screws, start the drive motor to control the rubber grinding head to grind and polish the surface of the seal.

[0010] Preferably, the upper end of the bracket is a ring structure with a notch and is compatible with the handle end and the telescopic rod. The distance between the brackets is equal to the overall length of the grinding machine after the telescopic rod is pulled out of the handle. During the use of the grinding machine, when replacing the seal or cleaning the workbench, the handle end is inserted into the bracket on one side and the telescopic rod end is inserted into the bracket on the other side, freeing both hands and making it convenient to use at any time.

[0011] Preferably, the rotating mechanism includes a shaft head, a primary rotating arm, and a rotary motor; the shaft head is arranged in the shaft seat, a primary rotating arm with a hollow steel pipe structure is installed on the shaft head, a rotary motor is installed on one side of the shaft seat, a power output element of the rotary motor is fixedly connected to the shaft head, and the rotary motor drives the shaft head and the primary rotating arm to rotate to the left and right sides respectively, driving the clamping mechanism to approach the valve seal.

[0012] Preferably, the clamping mechanism includes a secondary swivel arm, a pressure rod, and a rubber sleeve; the secondary swivel arm is inserted into the inner side of the primary swivel arm, one end of the secondary swivel arm outside the primary swivel arm is fixedly connected to the pressure rod and a ninety-degree angle is formed between the secondary swivel arm and the pressure rod, a rubber sleeve is sleeved on the outer side of the pressure rod, and the secondary swivel arm rotates with the primary swivel arm until the pressure rod and the rubber sleeve are tightly against the surface of the valve seal to clamp and fix it.

[0013] Preferably, the telescopic adjustment mechanism includes a pin hole, an adjustment hole, and a spring pin; a pin hole is provided on the outer wall of the first-stage swivel arm, and five adjustment holes are equidistantly provided on the second-stage swivel arm. Spring pins are inserted into the pin hole and the corresponding adjustment holes. The second-stage swivel arm is pulled outward from the first-stage swivel arm, and one of the adjustment holes is aligned with the pin hole. The spring pin naturally contracts due to its own spring, so that the pin is automatically pushed into the pin hole and the adjustment hole, thereby locking the position of the second-stage swivel arm and changing the fixing position of the seal with the pressure rod.

[0014] Beneficial effects of the utility model:

[0015] 1. Through the rotatable clamping mechanism installed on the workbench, the surface of the seal can be clamped and fixed from two directions in turn when the valve seal is polished, so that the staff can fully press and fix the unlocked side of the seal with their hands, which is helpful for polishing the seal surface with grinding tools. The locking range is wide, the locking effect is good, and the seal is not easy to move during polishing;

[0016] 2. The metal powder generated during the grinding and polishing of valve seals can be manually cleaned and concentrated into the chip bin, which is convenient for unified recycling and treatment later;

[0017] 3. The relative position between the primary rotating arm and the secondary rotating arm can be adjusted by locking with a spring pin. The extrusion locking position can be adjusted according to the different sizes of valve sealing rings, which is flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The first three-dimensional structure schematic diagram of the grinding and polishing device for valve seal processing of the utility model is shown;

[0019] Figure 2 The second three-dimensional structure schematic diagram of the grinding and polishing device for valve seal processing of the utility model is shown;

[0020] Figure 3 The third stereoscopic structure schematic diagram of the grinding and polishing device for valve seal processing of the utility model is shown;

[0021] Figure 4 The three-dimensional structure schematic diagram of the clamping assembly of the grinding and polishing device for valve seal processing of the utility model is shown;

[0022] Figure 5 Shown is a three-dimensional structural schematic diagram of the auxiliary adjustment component of the grinding and polishing device for valve seal processing of the utility model;

[0023] Figure 6 Shown is a three-dimensional structural schematic diagram of a connecting bracket of a grinding and polishing device for valve seal processing of the utility model.

[0024] Explanation of the reference numerals in the accompanying drawings: 1. workbench; 2. shaft seat; 3. storage bin; 4. bracket; 9. chip bin; 501. handle; 502. telescopic rod; 503. rubber grinding head; 601. shaft head; 602. primary rotating arm; 603. rotary motor; 701. secondary rotating arm; 702. pressure rod; 703. rubber sleeve; 801. pin hole; 802. adjustment hole; 803. spring pin. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-2 The utility model provides an embodiment: a grinding and polishing device for valve seal processing, including a workbench 1, a shaft seat 2, a storage bin 3, a bracket 4, a grinding machine, a rotating mechanism, a clamping mechanism, and a telescopic adjustment mechanism; the workbench 1 is a rectangular table structure and the shaft seat 2 is fixedly connected to one side of the upper end, the valve sealing ring is horizontally placed on the upper surface of the workbench 1, and the side walls around the workbench 1 are provided with a storage bin 3 adapted to the grinding machine, two groups of brackets 4 are fixedly installed on the upper end of the workbench 1 on the left and right sides of the shaft seat 2, and a rotating mechanism is installed on the shaft seat 2. A clamping mechanism is installed at the power output end, and a telescopic adjustment mechanism is arranged between the clamping mechanism and the rotating mechanism. After the valve seal is placed on the workbench 1, the rotating mechanism drives the clamping mechanism to rotate to one side to squeeze and fix one side of the seal, and the other side of the seal is pressed and fixed by hand, and then it can be polished by a grinding machine. Similarly, after the processing of this side, the rotating mechanism drives the clamping mechanism to rotate to the other side to squeeze and fix the other side of the seal, and the exposed part of the seal is pressed and fixed by hand, and then it is polished again by a grinding machine.

[0027] See also Figure 3 In this embodiment, four chip bins 9 are provided at the four corners of the upper end of the workbench 1 and surround the outer side of the valve sealing ring. The bottom of the chip bin 9 has a discharge port that penetrates to the bottom surface of the workbench 1 and a rubber plug is embedded in the discharge port. The metal powder generated by the grinding and polishing of the valve seal is concentrated in the chip bin 9 by manual cleaning. After the polishing work is completed, the rubber plug is pulled out and all the chips can fall naturally, which is convenient for unified recycling and treatment later. The upper end of the bracket 4 is a ring structure with a notch and is compatible with the end of the handle 501 and the telescopic rod 502. The distance between the brackets 4 is equal to the overall length of the grinding machine after the telescopic rod 502 is pulled out of the handle 501. During the use of the grinding machine, when replacing the seal and cleaning the workbench 1, the end of the handle 501 is inserted into the bracket 4 on one side, and the end of the telescopic rod 502 is inserted into the bracket 4 on the other side, which frees both hands and is convenient for use at any time.

[0028] See also Figure 4In this embodiment, the grinding machine includes a handle 501, a telescopic rod 502, and a rubber grinding head 503; the handle 501 is a hollow structure and is movably connected to the telescopic rod 502 inside, the end of the telescopic rod 502 outside the handle 501 has a driving motor and the rubber grinding head 503 is connected to the power output element of the driving motor, and the rubber grinding head 503 is made of rubber mixed with corundum. After taking the grinding machine out of the storage bin 3, the telescopic rod 502 is pulled out of the handle 501 and tightened and fixed by screws, and the driving motor is started to control the rubber grinding head 503 to grind and polish the surface of the seal.

[0029] See also Figure 5-6 In this embodiment, the rotating mechanism includes a shaft head 601, a primary rotating arm 602, and a rotary motor 603; the shaft head 601 is arranged in the shaft seat 2, and a primary rotating arm 602 of a hollow steel pipe structure is installed on the shaft head 601, and a rotary motor 603 is installed on one side of the shaft seat 2, and a power output element of the rotary motor 603 is fixedly connected to the shaft head 601, and the clamping mechanism includes a secondary rotating arm 701, a pressure rod 702, and a rubber sleeve 703; the secondary rotating arm 701 is plugged into the inner side of the primary rotating arm 602, and one end of the secondary rotating arm 701 outside the primary rotating arm 602 is fixedly connected to the pressure rod 702, and a ninety-degree angle is formed between the secondary rotating arm 701 and the pressure rod 702, and a rubber sleeve 703 is installed on the outer side of the pressure rod 702, and the telescopic adjustment mechanism includes a pin hole 801, an adjustment hole 802, and a spring pin 803; the outer wall of the primary rotating arm 602 is opened A pin hole 801 is provided, and five adjustment holes 802 are equidistantly provided on the secondary rotating arm 701. Spring pins 803 are inserted into the pin holes 801 and the corresponding adjustment holes 802. The rotary motor 603 drives the shaft head 601 and the primary rotating arm 602 to rotate to the left and right sides respectively, driving the clamping mechanism to approach the valve seal. The secondary rotating arm 701 rotates with the primary rotating arm 602 until the pressure rod 702 and the rubber sleeve 703 are tightly pressed against the surface of the valve seal to press and fix it. The secondary rotating arm 701 is pulled outward from the primary rotating arm 602 to align one of the adjustment holes 802 with the pin hole 801. The spring pin 803 shrinks naturally by its own spring to automatically push the pin into the pin hole 801 and the adjustment hole 802, thereby locking the position of the secondary rotating arm 701 and changing the fixing position of the pressure rod 702 on the seal.

[0030] When working, the user places the valve seal on the workbench 1, and according to the size and diameter of the seal, pulls out the secondary rotating arm 701 to the outside of the primary rotating arm 602, aligns one of the adjustment holes 802 with the pin hole 801, pushes in the spring pin 803, and fixes the secondary rotating arm 701 in a suitable position;

[0031] Then, the rotary motor 603 is started to drive the shaft head 601 and the primary rotating arm 602 to rotate to one side, driving the secondary rotating arm 701 to rotate until the pressure rod 702 and the rubber sleeve 703 are tightly pressed against the surface of the valve seal to press and fix it;

[0032] Then, the grinding tool is taken out from the storage bin 3, the telescopic rod 502 is pulled out from the handle 501, and is fixed by screws, and the other side of the seal that is not locked is pressed by hand, and the driving motor is started to control the rubber grinding head 503 to grind and polish the surface of the seal;

[0033] After processing on this side, the rotary motor 603 drives the pressure rod 702 and the rubber sleeve 703 to rotate to the other side, squeezes and fixes the other side of the seal, presses and fixes the unlocked part of the seal by hand, and then polishes it again with a grinding machine.

[0034] Through the above steps, the rotatable clamping mechanism installed on the workbench 1 can press and fix the surface of the seal in two directions in turn when the valve seal is ground and polished, so that it is convenient for the staff to fully press and fix the unlocked side of the seal by hand, which is helpful to use the grinding machine to polish the surface of the seal. The locking range is wide and the locking effect is good. The seal is not easy to move during grinding and polishing, so as to solve the problem of small fixing range and poor fixing effect when the valve seal is fixed by pressing the seal by hand during grinding and polishing.

[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A grinding and polishing device for valve seal processing, comprising a workbench (1); characterized in that: The invention also comprises an axle seat (2), a storage bin (3), a bracket (4), a grinding machine, a rotating mechanism, a clamping mechanism, and a telescopic adjustment mechanism; the workbench (1) is a rectangular table structure and is fixedly connected to the axle seat (2) on one side of the upper end; the valve sealing ring is horizontally placed on the upper surface of the workbench (1); the side walls around the workbench (1) are provided with a storage bin (3) adapted to the grinding machine; two groups of brackets (4) are fixedly installed on the upper end of the workbench (1) and are located on the left and right sides of the axle seat (2); a rotating mechanism is installed on the axle seat (2); a clamping mechanism is installed on the power output end of the rotating mechanism; and a telescopic adjustment mechanism is arranged between the clamping mechanism and the rotating mechanism.

2. A grinding and polishing device for valve seal processing according to claim 1, characterized in that: Four chip bins (9) are provided at the four corners of the upper end of the workbench (1) and surround the outer side of the valve sealing ring. The bottom of the chip bin (9) has a discharge port that penetrates the bottom surface of the workbench (1) and a rubber plug is embedded in the discharge port.

3. A grinding and polishing device for valve seal processing according to claim 1, characterized in that: The grinding tool comprises a handle (501), a telescopic rod (502), and a rubber grinding head (503); the handle (501) is a hollow structure and is movably connected with the telescopic rod (502) inside; one end of the telescopic rod (502) outside the handle (501) is provided with a driving motor and the rubber grinding head (503) is connected to a power output element of the driving motor; the rubber grinding head (503) is made of rubber mixed with corundum.

4. A grinding and polishing device for valve seal processing according to claim 3, characterized in that: The upper end of the bracket (4) is a ring structure with a notch and is compatible with the end of the handle (501) and the telescopic rod (502). The distance between the brackets (4) is equal to the overall length of the grinding tool after the telescopic rod (502) is pulled out of the handle (501).

5. The grinding and polishing device for valve seal processing according to claim 1, characterized in that: The rotating mechanism comprises a shaft head (601), a primary rotating arm (602), and a rotary motor (603); the shaft head (601) is arranged in a shaft seat (2), a primary rotating arm (602) of a hollow steel pipe structure is installed on the shaft head (601), a rotary motor (603) is installed on one side of the shaft seat (2), and a power output element of the rotary motor (603) is fixedly connected to the shaft head (601).

6. A grinding and polishing device for valve seal processing according to claim 5, characterized in that: The clamping mechanism comprises a secondary rotating arm (701), a pressure rod (702), and a rubber sleeve (703); the secondary rotating arm (701) is plugged into the inner side of the primary rotating arm (602); one end of the secondary rotating arm (701) outside the primary rotating arm (602) is fixedly connected with the pressure rod (702), and a ninety-degree angle is formed between the secondary rotating arm (701) and the pressure rod (702); and the rubber sleeve (703) is sleeved and installed on the outer side of the pressure rod (702).

7. A grinding and polishing device for valve seal processing according to claim 6, characterized in that: The telescopic adjustment mechanism comprises a pin hole (801), an adjustment hole (802), and a spring pin (803); the outer wall of the primary rotating arm (602) is provided with a pin hole (801), and the secondary rotating arm (701) is provided with five adjustment holes (802) at equal intervals; the pin hole (801) and the corresponding adjustment hole (802) are plugged with a spring pin (803).

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