A valve body polishing continuous conveying device

Abstract

The utility model belongs to valve body production equipment technical field especially relates to a valve body polishing continuous conveying device, including mesa, is set up with strip hole, polishing mechanism, fixedly set in mesa top, polishing mechanism setting in strip hole one side, reciprocating continuous conveying mechanism, slidingly set in strip hole, the fixed end of reciprocating continuous conveying mechanism and mesa bottom fixed connection, the movable end of reciprocating continuous conveying mechanism sets in the top of mesa and is located below the working end of polishing mechanism. Through setting reciprocating continuous conveying mechanism can position fixed two valve bodies simultaneously, after valve body fixed completes, reciprocating continuous conveying mechanism will one valve body be transported to below polishing mechanism, and polishing mechanism starts work and polishes valve body, after polishing, reciprocating continuous conveying mechanism continues to act and transports the valve body that polishes and leaves the position of polishing mechanism, and another valve body to be polished reaches the position of polishing mechanism and starts polishing.

Description

Technical Field

[0001] This utility model belongs to the technical field of valve body production equipment, and in particular relates to a continuous conveying device for valve body grinding. Background Technology

[0002] The valve body is a major component of a valve; different mechanical manufacturing methods are used depending on the pressure rating. For example, casting and forging are used. Valve bodies for medium and low pressure applications are typically produced using casting. Valve bodies for medium and high pressure applications are produced using forging. Together with the valve core and valve seat sealing ring, they form a seal that effectively withstands the pressure of the medium.

[0003] The valve body manufacturing process requires a grinding process. Traditional grinding methods can only grind one valve body at a time. The valve body is fixed on the tooling and then grinding begins. After grinding is completed, the valve body is removed and another valve body is fixed and ground. The fixing and disassembly of the valve body leads to low efficiency in the grinding work.

[0004] Therefore, a continuous conveying device for valve body grinding needs to be designed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a continuous conveying device for valve body grinding to solve the above problems and improve the efficiency of valve body grinding.

[0006] To achieve the above objectives, this utility model provides the following solution: a continuous conveying device for valve body grinding, comprising...

[0007] The countertop has slotted holes.

[0008] A polishing mechanism is fixedly installed on the top of the table surface, and the polishing mechanism is located on one side of the strip hole;

[0009] A reciprocating continuous conveying mechanism is slidably disposed within the strip-shaped hole. The fixed end of the reciprocating continuous conveying mechanism is fixedly connected to the bottom end of the table, and the movable end of the reciprocating continuous conveying mechanism is disposed at the top of the table and located below the working end of the grinding mechanism.

[0010] According to this utility model, a continuous conveying device for grinding valve body is provided. The reciprocating continuous conveying mechanism includes a reciprocating drive unit, which is fixedly connected to the bottom end of the table. The bottom end of the connecting plate is fixedly connected to the reciprocating drive unit. The connecting plate is slidably disposed in the strip hole. A valve body clamping mechanism is fixedly connected to the top end of the connecting plate. The valve body clamping mechanism is located below the working end of the grinding mechanism.

[0011] According to this utility model, a valve body grinding continuous conveying device is provided. The valve body clamping mechanism includes a sliding plate, which is fixedly connected to the top of the connecting plate. The bottom of the sliding plate is in sliding contact with the top of the table. Positioning shafts are fixedly connected to both ends of the top of the sliding plate. Clamping parts are provided at both ends of the sliding plate, and the clamping parts correspond one-to-one with the positioning shafts.

[0012] According to this utility model, a continuous conveying device for grinding valve bodies includes a clamping part comprising a second telescopic rod and a third telescopic rod. The second and third telescopic rods are symmetrically arranged on both sides of the positioning shaft. The fixed end of the second telescopic rod is fixedly embedded inside the end of the slide plate. The telescopic end of the second telescopic rod is fixedly connected to one end of a connecting rod, and the other end of the connecting rod is fixedly connected to a positioning part. The two third telescopic rods are stacked one on top of the other. The lower third telescopic rod is fixedly connected to the top of the table, and the telescopic end of the third telescopic rod is fixedly connected to another positioning part.

[0013] According to the present invention, a valve body grinding continuous conveying device is provided, wherein the positioning part includes a positioning plate, one side wall of the positioning plate is fixedly connected to the other end of the connecting rod and / or the telescopic end of the telescopic rod three, and the two ends of the other side wall of the positioning plate are respectively fixedly connected to the support ears.

[0014] According to this utility model, in a continuous conveying device for grinding valve body, the end of the support lug away from the positioning plate is set as an arc surface.

[0015] According to this utility model, a continuous conveying device for grinding valve body includes a reciprocating drive unit comprising a forward and reverse motor, the forward and reverse motor being fixedly connected to the bottom end of the table, one end of a lead screw being coaxially fixedly connected to the output shaft of the forward and reverse motor, the other end of the lead screw being rotatably connected to a fixed seat, the fixed seat being fixedly connected to the bottom end of the table, a slide being threadedly connected to the outer wall of the lead screw, and the bottom end of the connecting plate being fixedly connected to the top end of the slide.

[0016] According to this utility model, a valve body grinding continuous conveying device is provided. The grinding mechanism includes a height adjustment part, which is vertically arranged and its bottom end is fixedly connected to the top end of the table. A horizontally arranged fixed plate is fixedly connected to the top end of the height adjustment part, and a grinding head is fixedly connected to the bottom of the other end of the fixed plate. The grinding head is located above the movable end of the reciprocating continuous conveying mechanism.

[0017] According to this utility model, a valve body grinding continuous conveying device includes a height adjustment part comprising a telescopic rod, which is vertically arranged and its fixed end is fixedly connected to the top of the table, and a fixed plate is fixedly connected to the telescopic end of the telescopic rod.

[0018] According to this utility model, a continuous conveying device for grinding valve body is provided, wherein support legs are fixedly connected to the four corners of the bottom end of the table.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects:

[0020] This invention utilizes a reciprocating continuous conveying mechanism to simultaneously position and fix two valve bodies. After the valve bodies are fixed, the reciprocating continuous conveying mechanism transports one valve body to the bottom of the grinding mechanism, where the grinding mechanism begins grinding the valve body. After grinding, the reciprocating continuous conveying mechanism continues to transport the ground valve body away from the grinding mechanism, while the other valve body to be ground arrives at the grinding mechanism and begins grinding. At this point, the worker removes the ground valve body from the reciprocating continuous conveying mechanism and then fixes and installs the other valve bodies that need grinding. This cycle repeats continuously, enabling continuous conveying of valve bodies for grinding without affecting the grinding process during installation and disassembly. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0023] Figure 2 This is a schematic diagram of the reciprocating continuous conveying mechanism of this utility model;

[0024] Figure 3 for Figure 2 A magnified view of part A in the image;

[0025] Figure 4 This is a schematic diagram of the tabletop of this utility model.

[0026] The components are as follows: 1. Tabletop; 2. Support leg; 3. Telescopic rod one; 4. Fixing plate; 5. Grinding head; 6. Strip hole; 7. Slide plate; 8. Forward and reverse motor; 9. Lead screw; 10. Fixing base; 11. Slide; 12. Connecting plate; 13. Positioning shaft; 14. Telescopic rod two; 15. Connecting rod; 16. Telescopic rod three; 17. Positioning plate; 18. Support lug. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figures 1 to 4 As shown, this utility model provides a valve body grinding continuous conveying device, including a table 1 with a strip-shaped hole 6.

[0030] The grinding mechanism is fixedly installed at the top of the table 1 and is located on one side of the strip hole 6;

[0031] A reciprocating continuous conveying mechanism is slidably disposed within the strip-shaped hole 6. The fixed end of the reciprocating continuous conveying mechanism is fixedly connected to the bottom end of the table 1, and the movable end of the reciprocating continuous conveying mechanism is disposed at the top of the table 1 and below the working end of the grinding mechanism.

[0032] Furthermore, the reciprocating continuous conveying mechanism includes a reciprocating drive unit, which is fixedly connected to the bottom end of the table 1. The bottom end of the connecting plate 12 is fixedly connected to the reciprocating drive unit. The connecting plate 12 is slidably disposed in the strip hole 6. A valve body clamping mechanism is fixedly connected to the top end of the connecting plate 12. The valve body clamping mechanism is located below the working end of the grinding mechanism.

[0033] The material of the valve body is selected according to different process media. Commonly used materials include: cast iron, cast steel, stainless steel, carbon steel, plastic, and copper. Gray cast iron: Gray cast iron valves are used in various industrial fields due to their low price and wide applicability. They are typically used in applications involving water, steam, oil, and gas, and are widely used in chemical, printing and dyeing, oil and chemical, textile, and many other industrial products where iron contamination has little or no impact. Suitable for low-pressure valves with operating temperatures between -15 and 200°C and nominal pressure PN ≤ 1.6 MPa. Ductile cast iron: Ductile cast iron is a type of cast iron in which nodular or spherical graphite replaces the flake graphite found in gray cast iron. This change in the internal structure of the metal makes its mechanical properties better than ordinary gray cast iron without compromising other properties. Therefore, valves made of ductile cast iron can withstand higher pressures than those made of gray cast iron. Suitable for medium and low pressure valves with operating temperatures between -30 and 350°C and nominal pressure PN ≤ 4.0 MPa. Applicable media include water, seawater, steam, air, gas, and oil. Carbon steel: Initially, cast steel was developed to meet production needs exceeding the capabilities of cast iron and bronze valves. However, due to the superior overall performance of carbon steel valves and their high resistance to stresses caused by thermal expansion, impact loads, and pipeline deformation, their application range has expanded, typically including the operating conditions of cast iron and bronze valves. Suitable for medium and high pressure valves with operating temperatures between -29 and 425°C. 16Mn and 30Mn valves have operating temperatures between -40 and 400°C and are often used to replace ASTM A105. Applicable media include saturated steam and superheated steam, high-temperature and low-temperature oils, liquefied gases, compressed air, water, and natural gas.

[0034] Furthermore, the valve body clamping mechanism includes a slide plate 7, which is fixedly connected to the top of the connecting plate 12. The bottom of the slide plate 7 slides in contact with the top of the table 1. Positioning shafts 13 are fixedly connected to both ends of the top of the slide plate 7. Clamping parts are provided at both ends of the slide plate 7, and the clamping parts correspond one-to-one with the positioning shafts 13.

[0035] Furthermore, the clamping part includes a second telescopic rod 14 and a third telescopic rod 16. The second telescopic rod 14 and the third telescopic rod 16 are symmetrically arranged on both sides of the positioning shaft 13. The fixed end of the second telescopic rod 14 is fixedly embedded in the end of the slide plate 7. The telescopic end of the second telescopic rod 14 is fixedly connected to one end of a connecting rod 15. The other end of the connecting rod 15 is fixedly connected to a positioning part. The two third telescopic rods 16 are stacked one on top of the other. The lower third telescopic rod 16 is fixedly connected to the top of the table 1. The telescopic end of the third telescopic rod 16 is fixedly connected to another positioning part.

[0036] Furthermore, the positioning part includes a positioning plate 17, one side wall of the positioning plate 17 is fixedly connected to the other end of the connecting rod 15 and / or the telescopic end of the telescopic rod 16, and the two ends of the other side wall of the positioning plate 17 are respectively fixedly connected to the lugs 18.

[0037] Furthermore, the end of the support ear 18 furthest from the positioning plate 17 is set as an arc surface.

[0038] The valve body is clamped and fixed by the arc surface, which will not cause bumps or scratches to the outer surface of the valve body, thus providing effective protection for the valve body.

[0039] Furthermore, the reciprocating drive unit includes a forward and reverse motor 8, which is fixedly connected to the bottom of the table 1. One end of a lead screw 9 is coaxially fixedly connected to the output shaft of the forward and reverse motor 8, and the other end of the lead screw 9 is rotatably connected to a fixed seat 10. The fixed seat 10 is fixedly connected to the bottom of the table 1, and a slide 11 is threadedly connected to the outer wall of the lead screw 9. The bottom end of the connecting plate 12 is fixedly connected to the top end of the slide 11.

[0040] Forward and reverse rotation of a motor refers to its clockwise and counterclockwise rotation. This technology is used in everyday machinery such as overhead cranes, woodworking planers, bench drills, wire cutting machines, spin dryers, and lathes. It has laid the foundation for the development of industrial robots. The working principle of forward and reverse rotation is achieved through steps including programming, input signal detection, signal processing, output control, and feedback monitoring.

[0041] Initially, reversing a device required replacing the motor wiring, a cumbersome method in practice. Later, a switch was installed to change the motor's direction of rotation. After some time, a forward / reverse switch appeared, offering simpler wiring and a smaller size. However, due to contact limitations, it was only widely used with small motors. With the advent of contactors, motor reversing circuits further developed. They allowed for more flexible and convenient control of motor rotation, and incorporated protective circuits—interlocking and double interlocking—allowing for frequent control over low voltage and long distances. The development of electronic technology, including PLCs and microcontrollers, further improved motor reversing circuits. Proximity switches and photoelectric switches were added to practical applications, enabling bidirectional automatic control and laying the foundation for industrial robots. To enable forward and reverse rotation of the motor, two contactors can be used to switch the phase sequence of the three-phase power supply. However, the two contactors cannot engage simultaneously; doing so would cause a short circuit. To prevent this, reliable interlocking must be implemented in the circuit.

[0042] Furthermore, the grinding mechanism includes a height adjustment section, which is vertically arranged and its bottom end is fixedly connected to the top end of the table 1. A horizontally arranged fixed plate 4 is fixedly connected to the top end of the height adjustment section, and a grinding head 5 is fixedly connected to the bottom of the other end of the fixed plate 4. The grinding head 5 is located above the movable end of the reciprocating continuous conveying mechanism.

[0043] Furthermore, the height adjustment unit includes a telescopic rod 3, which is vertically arranged and its fixed end is fixedly connected to the top of the table 1, and the fixed plate 4 is fixedly connected to the telescopic end of the telescopic rod 3.

[0044] Furthermore, support legs 2 are fixedly connected to the four corners of the bottom of the tabletop 1.

[0045] The working process of this utility model is as follows:

[0046] When the valve body needs to be ground, first fix the valve body on the slide plate 7. During installation, control the extension of the second telescopic rod 14 while the third telescopic rod 16 shortens, and position the valve body on the positioning shaft 13. Then, control the extension of the second telescopic rod 14 while the third telescopic rod 16 extends, and use the lug 18 to clamp and position the valve body. After the valve body is fixed, the forward and reverse motor 8 drives the lead screw 9 to rotate. The lead screw 9 drives the slide plate 7 to move through the slide block 11 and the connecting plate 12. During the movement of the slide plate 7, the valve body at one end is transported to the underside of the grinding head 5. Then, the grinding head 5 begins to grind the valve body. After grinding is completed, the slide plate 7 continues to move, transporting the other end of the valve body to the ground head 5 for further grinding. At this time, the worker removes the ground valve body from the slide plate 7 and reinstalls a valve body that needs grinding. After the other end of the valve body on the slide plate 7 is ground, the slide plate 7 moves again, transporting the reinstalled valve body to the ground head 5 for grinding. The worker then removes the ground valve body and fixes other valve bodies that need grinding. This cycle is repeated to achieve a continuous conveying process for grinding the valve body.

[0047] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements to the technical solutions of the present utility model made by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A continuous conveying device for valve body grinding, characterized in that, include The tabletop (1) has a strip-shaped hole (6); A polishing mechanism is fixedly installed on the top of the table (1), and the polishing mechanism is located on one side of the strip hole (6); A reciprocating continuous conveying mechanism is slidably disposed in the strip hole (6). The fixed end of the reciprocating continuous conveying mechanism is fixedly connected to the bottom end of the table (1). The movable end of the reciprocating continuous conveying mechanism is disposed at the top of the table (1) and located below the working end of the grinding mechanism.

2. The valve body grinding continuous conveying device according to claim 1, characterized in that, The reciprocating continuous conveying mechanism includes a reciprocating drive unit, which is fixedly connected to the bottom end of the table (1). The bottom end of the connecting plate (12) is fixedly connected to the reciprocating drive unit. The connecting plate (12) is slidably disposed in the strip hole (6). A valve body clamping mechanism is fixedly connected to the top end of the connecting plate (12). The valve body clamping mechanism is located below the working end of the grinding mechanism.

3. The valve body grinding continuous conveying device according to claim 2, characterized in that, The valve body clamping mechanism includes a slide plate (7), which is fixedly connected to the top of the connecting plate (12). The bottom of the slide plate (7) slides in contact with the top of the table surface (1). Positioning shafts (13) are fixedly connected to both ends of the top of the slide plate (7). Clamping parts are provided at both ends of the slide plate (7), and the clamping parts correspond one-to-one with the positioning shafts (13).

4. The valve body grinding continuous conveying device according to claim 3, characterized in that, The clamping part includes a second telescopic rod (14) and a third telescopic rod (16). The second telescopic rod (14) and the third telescopic rod (16) are symmetrically arranged on both sides of the positioning shaft (13). The fixed end of the second telescopic rod (14) is fixedly embedded in the end of the slide plate (7). The telescopic end of the second telescopic rod (14) is fixedly connected to one end of a connecting rod (15). The other end of the connecting rod (15) is fixedly connected to a positioning part. The two third telescopic rods (16) are stacked one on top of the other. The third telescopic rod (16) located below is fixedly connected to the top of the table (1). The telescopic end of the third telescopic rod (16) is fixedly connected to another positioning part.

5. The valve body grinding continuous conveying device according to claim 4, characterized in that, The positioning part includes a positioning plate (17), one side wall of the positioning plate (17) is fixedly connected to the other end of the connecting rod (15) and / or the telescopic end of the telescopic rod (16), and the two ends of the other side wall of the positioning plate (17) are respectively fixedly connected to lugs (18).

6. The valve body grinding continuous conveying device according to claim 5, characterized in that, The end of the support lug (18) away from the positioning plate (17) is set as an arc surface.

7. A valve body grinding continuous conveying device according to claim 2, characterized in that, The reciprocating drive unit includes a forward and reverse motor (8), which is fixedly connected to the bottom end of the table (1). The output shaft of the forward and reverse motor (8) is coaxially fixedly connected to one end of a lead screw (9), and the other end of the lead screw (9) is rotatably connected to a fixed seat (10). The fixed seat (10) is fixedly connected to the bottom end of the table (1). A slide (11) is threadedly connected to the outer wall of the lead screw (9), and the bottom end of the connecting plate (12) is fixedly connected to the top end of the slide (11).

8. The valve body grinding continuous conveying device according to claim 1, characterized in that, The grinding mechanism includes a height adjustment part, which is vertically arranged and its bottom end is fixedly connected to the top end of the table (1). A horizontally arranged fixed plate (4) is fixedly connected to the top end of the height adjustment part, and a grinding head (5) is fixedly connected to the bottom of the other end of the fixed plate (4). The grinding head (5) is located above the movable end of the reciprocating continuous conveying mechanism.

9. A valve body grinding continuous conveying device according to claim 8, characterized in that, The height adjustment unit includes a telescopic rod (3), which is vertically arranged and its fixed end is fixedly connected to the top of the table (1). The fixed plate (4) is fixedly connected to the telescopic end of the telescopic rod (3).

10. A continuous conveying device for valve body grinding according to claim 1, characterized in that, The four corners of the bottom of the tabletop (1) are respectively fixedly connected to support legs (2).

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