A fixing fixture and machining method for marine valve bodies

Abstract

This invention discloses a fixing fixture and processing method for marine valve bodies, relating to the field of fixing fixture equipment technology. The fixing fixture includes a valve body processing support, with valve body processing flipping drive components provided on both sides of the top of the support. Using the valve body processing support as a carrier, and with the valve body processing flipping drive components on both sides of the support, the clamping jaws can flip the valve body according to processing needs after clamping it, thus allowing the valve body processing angle to be variable. By using an electric push rod to move the clamping jaws, it is possible to clamp valve bodies of different lengths and sizes. The fixing fixture of this invention can increase the application range of valve bodies of different sizes. The clamping jaws can clamp the outer surface of the valve body or extend into the interior of the valve body for expanded clamping, not only achieving the effect of not obstructing the processing window, but also being able to clamp small-sized valve bodies.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding, and specifically to a fixing fixture and processing method for machining marine valve bodies. Background Technology

[0002] Marine valves are devices designed to meet the environmental conditions of ships and are used to control the pressure, flow rate, and flow direction of fluids within ship pipelines. During the manufacturing process of marine valve bodies, to ensure their stability, clamping fixtures are typically used to hold and limit the valve body, preventing positional deviations during processing and ensuring optimal manufacturing results.

[0003] Traditional fixed clamps are typically used in a fixed clamping manner. As a result, when clamping and processing marine valve bodies of different specifications, it is difficult to effectively adapt to the surface shape of the marine valve body. This is not conducive to ensuring the clamping stability of the marine valve body and can easily affect the processing effect of the marine valve body. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the fixture in the machining of marine valve bodies, such as the small clamping range and poor clamping stability, this paper provides a technical solution for a fixed fixture and machining method for marine valve bodies.

[0005] To achieve the above-mentioned objectives, the technical solution provided by this invention patent is as follows:

[0006] A fixing fixture for machining marine valve bodies includes a valve body machining bracket. Valve body machining tilting drive components are provided on both sides of the top of the valve body machining bracket. Valve body clamps connected to the valve body machining tilting drive components are provided on both sides of the inner side of the valve body machining bracket. The marine valve body component to be machined is clamped between the close ends of the valve body clamps.

[0007] The valve body processing bracket includes two horizontal beam support rods, two longitudinal beams fixed at the left and right ends of the horizontal beam support rods, and vertical rods fixed on the upper surface of the longitudinal beams. Each vertical rod has a fixing plate fixedly connected to the side of the vertical rods that are close to each other.

[0008] The valve body machining flipping drive includes a base plate fixed to the top of the upright, and a drive motor and a reducer fixed to the surfaces of the base plate that are far apart from each other. The output end of the reducer is connected to a rotating shaft that passes through the fixed plate via a coupling.

[0009] The valve body clamp includes an electric push rod fixedly connected to one end of the rotating shaft close to each other, and valve body grippers fixed to one end of the telescopic shaft of the electric push rod close to each other.

[0010] The valve body gripper includes a connecting plate, a fixing plate fixed on one side of the connecting plate, and a servo motor fixed on the inner side of the connecting plate. The output shaft of the servo motor is connected to a drive gear via a coupling. Two meshing half-tooth gears are rotatably connected to the front side wall of the fixing plate. A traction arm is fixed to the side of the half-tooth gears away from the connecting plate. A clamping arm is rotatably connected to the end of the traction arm, and an insertion arm is fixedly connected to the end of the clamping arm.

[0011] Two traction rods are rotatably connected to the upper and lower positions of the rear surface of the fixed plate. The end of the traction rod on the left is rotatably connected to the hinge point of the traction arm and the clamping arm, and the end of the traction rod on the right is rotatably connected to the middle section of the rear surface of the clamping arm.

[0012] In the above-mentioned technical solution of a fixing fixture for machining marine valve body, preferably: the longitudinal beams are all mirror-symmetrical about the central axis of the crossbeam support rod, and the bottom surface of the longitudinal beams is fixed with casters by screws at the front and rear positions. The upper surface of the longitudinal beams is welded with a side support rod at the front and rear positions, and the top of the side support rod is fixedly connected to the front and rear surfaces of the upright.

[0013] In the above-mentioned technical solution of a fixing fixture for machining marine valve body, preferably: the interior of the fixing plate is provided with through holes for the rotating shaft to pass through, and a ball bearing adapted to the rotating shaft is installed inside the through hole, and the end of the rotating shaft located on the inner side of the fixing plate is 1-3mm away from the inner surface of the fixing plate.

[0014] In the above-mentioned technical solution of a fixing fixture for machining marine valve body, preferably: the four corners of the bottom surface of the base plate are fixed to the top end face of the upright by screws, and two bearings adapted to the rotating shaft are fixedly installed on the top surface of the base plate.

[0015] In the above-mentioned technical solution of a fixing fixture for machining marine valve body, preferably: the outer surface of the drive motor is fixedly connected to the side surface of the base plate that is far away from each other, the output shaft of the drive motor is connected to the input end of the reducer, and the output shaft of the reducer is connected to the side end of the rotating shaft that is far away from each other.

[0016] In the above-mentioned technical solution of a fixing fixture for machining marine valve body, preferably: the ends of the connecting plates that are far apart from each other are connected to the end of the telescopic shaft of the electric push rod, and the cross-section of the connecting plate is an inverted "L" shape.

[0017] In the above-mentioned technical solution of a fixing fixture for machining marine valve body, preferably: the teeth of the drive gear mesh with the teeth of the top half gear.

[0018] In the above-mentioned technical solution of a fixing fixture for machining marine valve body, preferably: four through-rod pins for the tie rod are provided on the rear surface of the fixing plate.

[0019] In the above-mentioned technical solution of a fixing fixture for machining marine valve body, preferably: anti-slip grooves are provided on the side surfaces of the clamping arms that are close to each other, and strip-shaped grooves are provided on the side surfaces of the probing arms that are far apart from each other.

[0020] This invention also provides a method for machining marine valve bodies, using the aforementioned fixing fixture for machining marine valve bodies, and comprising the following steps:

[0021] The first step is to drive the electric push rod to move the valve body gripper closer to the marine valve body component until the inner surface of the gripping arm contacts the outer surface of the marine valve body component, or the probe arm is inserted into the interior of the marine valve body component.

[0022] The second step involves driving the drive gear to rotate via a servo motor, which in turn drives the top half-tooth gear to rotate and the bottom half-tooth gear to rotate. This causes the two traction arms to move closer or further apart synchronously. Under the pulling action of the traction rod and the traction arms, the clamping arms will move closer or further apart. Depending on the size and processing position of the marine valve body, the side of the clamping arms that is close to each other is selected to clamp the outer surface of the marine valve body, or the side of the probing arms that is far apart is inserted into the interior of the marine valve body for expansion clamping.

[0023] The third step is to flip the marine valve body component after the valve body gripper has finished clamping it, according to the processing requirements. The rotational power of the drive motor and reducer is transmitted to the rotating shaft, which forces the valve body gripper and electric push rod to rotate along the axis, thereby flipping the marine valve body component.

[0024] As can be seen from the above technical solution, the present invention provides a fixing fixture and processing method for machining marine valve bodies. Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The fixed fixture for machining marine valve bodies of the present invention uses a valve body machining bracket as a carrier and provides valve body machining flipping drive components on both sides of the bracket, so that after the gripper holds the valve body, it can flip the valve body according to the machining needs, thereby making the valve body machining angle variable.

[0026] 2. The fixing fixture and processing method for marine valve body processing of the present invention utilizes an electric push rod to move the gripper, which enables the gripper to clamp valve bodies of different lengths and sizes, increasing the application range for valve bodies of different sizes. In addition, the gripper can clamp the outer surface of the valve body or extend into the interior of the valve body for expanded clamping, which not only achieves the effect of not obstructing the processing window, but also allows for clamping of small-sized valve bodies. Attached Figure Description

[0027] 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 of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of a fixture for machining the valve body;

[0029] Figure 2 A schematic diagram of the valve body support machining;

[0030] Figure 3 A schematic diagram of machining the tilting drive component for the valve body;

[0031] Figure 4 This is a schematic diagram of the valve body clamp;

[0032] Figure 5 This is a magnified schematic diagram of the valve body fixture.

[0033] Appendix Figure 1 -Appendix Figure 5 The correspondence between the components is as follows:

[0034] 1. Valve body machining bracket; 11. Crossbeam support rod; 12. Longitudinal beam; 13. Casters; 14. Upright pole; 15. Fixing plate; 16. Side support rod; 2. Valve body machining tilting drive component; 21. Base plate; 22. Reducer; 23. Drive motor; 24. Bearing; 25. Rotating shaft; 3. Valve body clamp; 31. Electric push rod; 32. Valve body gripper; 321. Connecting plate; 322. Servo motor; 323. Half gear; 324. Traction arm; 325. Pull rod; 326. Clamping arm; 327. Insertion arm; 328. Drive gear; 329. Fixing plate; 4. Marine valve body components. Detailed Implementation

[0035] 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 embodiments described below 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] To provide a clearer explanation and illustration of the technical solution and implementation of the present invention, the following describes preferred embodiments of the technical solution of the present invention.

[0037] Example 1

[0038] This embodiment presents a preferred technical solution for a fixing fixture and machining method for marine valve bodies:

[0039] Refer to the instruction manual appendix Figure 1 As shown: The fixed fixture consists of a valve body processing bracket 1, valve body processing flipping drive 2 is provided on both sides of the top of the valve body processing bracket 1, and valve body clamps 3 connected to the valve body processing flipping drive 2 are provided on both sides of the inner side of the valve body processing bracket 1. The marine valve body part 4 to be processed is clamped between the close ends of the valve body clamps 3.

[0040] Refer to the instruction manual appendix Figure 2 As shown: The valve body processing bracket 1 includes two horizontal beam support rods 11, two longitudinal beams 12 fixed at the left and right ends of the horizontal beam support rods 11, and uprights 14 fixed on the upper surface of the longitudinal beams 12. The uprights 14 are fixedly connected to the side of each other with a fixing plate 15.

[0041] Refer to the instruction manual appendix Figure 3 As shown: The valve body machining flipping drive component 2 includes a base plate 21 fixed on the top of the upright 14, and a drive motor 23 and a reducer 22 fixed on the surface of the base plate 21 that are far apart from each other. The output end of the reducer 22 is connected to a rotating shaft 25 that passes through the fixed plate 15 through a coupling.

[0042] Refer to the instruction manual appendix Figure 5 As shown: The valve body clamp 3 includes an electric push rod 31 fixedly connected to one end of the rotating shaft 25, and a valve body gripper 32 fixed to one end of the telescopic shaft of the electric push rod 31. The valve body gripper 32 includes a connecting plate 321, a fixing plate 329 fixed to one side of the connecting plate 321, and a servo motor 322 fixed to the inner side of the connecting plate 321. A drive gear 328 is connected to the output shaft of the servo motor 322 through a coupling. Two meshing half-tooth gears 323 are rotatably connected to the front side wall of the fixing plate 329. A traction arm 324 is fixed to the side of the half-tooth gears 323 away from the connecting plate 321. A clamping arm 326 is rotatably connected to the end of the traction arm 324, and an insertion arm 327 is fixedly connected to the end of the clamping arm 326.

[0043] Refer to the instruction manual appendix Figure 5 As shown: Two traction rods 325 are rotatably connected to the upper and lower positions of the rear surface of the fixed plate 329. The end of the traction rod 325 on the left is rotatably connected to the hinge point of the traction arm 324 and the clamping arm 326, and the end of the traction rod 325 on the right is rotatably connected to the middle section of the rear surface of the clamping arm 326.

[0044] Refer to the instruction manual appendix Figure 2As shown: The longitudinal beams 12 are mirror-symmetrical about the central axis of the crossbeam support rod 11. Universal wheels 13 are fixed to the front and rear positions of the bottom surface of the longitudinal beams 12 with screws. A side support rod 16 is welded to the front and rear positions of the upper surface of the longitudinal beams 12, and the top of the side support rod 16 is fixedly connected to the front and rear surfaces of the upright rod 14. The interior of the fixing plate 15 has through holes for the rotating shaft 25 to pass through. Ball bearings compatible with the rotating shaft 25 are installed inside the through holes, and there is a 1-3mm distance between the end of the rotating shaft 25 located on the inner side of the fixing plate 15 and the inner surface of the fixing plate 15. The four corners of the bottom surface of the base plate 21 are fixed to the top end face of the upright rod 14 with screws. Two bearings 24 compatible with the rotating shaft 25 are fixedly installed on the top surface of the base plate 21. The outer surface of the drive motor 23 is fixedly connected to the side of the base plate 21 that is far away from each other. The output shaft of the drive motor 23 is connected to the input end of the reducer 22. The output shaft of the reducer 22 is connected to the side of the rotating shaft 25 that is far away from each other.

[0045] Refer to the instruction manual appendix Figure 5 As shown: the ends of the connecting plates 321 that are far apart are connected to the end of the telescopic shaft of the electric push rod 31. The cross-section of the connecting plate 321 is an inverted "L" shape. The teeth of the drive gear 328 mesh with the teeth of the top half-tooth gear 323. Four shaft pins penetrating the pull rod 325 are provided on the rear surface of the fixing plate 329; anti-slip grooves are provided on the side surfaces of the clamping arms 326 that are close to each other, and strip-shaped grooves are provided on the side surfaces of the probing arms 327 that are far apart.

[0046] Example 2

[0047] Based on the above structural form of the fixing fixture for machining marine valve bodies, the workflow for machining marine valve bodies is described as follows:

[0048] In the first step, the electric push rod 31 drives the valve body gripper 32 to approach the marine valve body 4 until the inner surface of the gripping arm 326 contacts the outer surface of the marine valve body 4, or the probe arm 327 is inserted into the interior of the marine valve body 4.

[0049] The second step involves driving the drive gear 328 to rotate via the servo motor 322, which in turn drives the top half-gear 323 to rotate and the bottom half-gear 323 to rotate. This causes the two traction arms 324 to move closer or further apart synchronously. Under the pulling action of the pull rod 325 and the traction arms 324, the clamping arms 326 will move closer or further apart. Depending on the size and processing position of the marine valve body 4, the clamping arms 326 can be positioned so that they are close together to clamp the outer surface of the marine valve body 4, or the probing arms 327 can be inserted into the interior of the marine valve body 4 with their sides moving apart to expand and clamp the parts.

[0050] The third step is to flip the marine valve body component 4 after the valve body gripper 32 has finished clamping it. The rotational power of the drive motor 23 and the reducer 22 is transmitted to the rotating shaft 25. The rotating shaft 25 forces the valve body gripper 32 and the electric push rod 31 to rotate along the axis, thereby flipping the marine valve body component 4.

[0051] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A fixing fixture for machining marine valve bodies, comprising a valve body machining support (1), characterized in that: The valve body processing bracket (1) is provided with valve body processing flipping drive (2) on both sides of the top. The valve body processing bracket (1) is provided with valve body clamps (3) connected to the valve body processing flipping drive (2) on both sides of the inner side. The valve body clamps (3) clamp the marine valve body parts (4) to be processed between their close ends. The valve body processing bracket (1) includes two horizontal beam support rods (11), two longitudinal beams (12) fixed at the left and right ends of the horizontal beam support rods (11), and uprights (14) fixed on the upper surface of the longitudinal beams (12). The uprights (14) are fixedly connected to a fixing plate (15) on the side of each other. The valve body machining flipping drive (2) includes a base plate (21) fixed on the top of the upright (14), and a drive motor (23) and a reducer (22) fixed on the surface of the base plate (21) that are far apart from each other. The output end of the reducer (22) is connected to a rotating shaft (25) that passes through the fixed plate (15) via a coupling. The valve body clamp (3) includes an electric push rod (31) fixedly connected to one end of the rotating shaft (25) close to each other, and a valve body clamp (32) fixed on one end of the telescopic shaft of the electric push rod (31) close to each other. The valve body gripper (32) includes a connecting plate (321), a fixing plate (329) fixed on one side of the connecting plate (321) and a servo motor (322) fixed on the inner side of the connecting plate (321). The output shaft of the servo motor (322) is connected to a drive gear (328) via a coupling. Two meshing half-tooth gears (323) are rotatably connected to the front side wall of the fixing plate (329). A traction arm (324) is fixed on the side of the half-tooth gears (323) away from the connecting plate (321). A clamping arm (326) is rotatably connected to the end of the traction arm (324). An insertion arm (327) is fixedly connected to the end of the clamping arm (326). Two traction rods (325) are rotatably connected to the upper and lower positions of the rear surface of the fixed plate (329). The end of the traction rod (325) on the left is rotatably connected to the hinge point of the traction arm (324) and the clamping arm (326), and the end of the traction rod (325) on the right is rotatably connected to the middle section of the rear surface of the clamping arm (326).

2. The fixing fixture for machining marine valve bodies according to claim 1, characterized in that: The longitudinal beams (12) are mirror-symmetrical about the central axis of the crossbeam support rod (11). The bottom surface of the longitudinal beams (12) is fixed with casters (13) by screws at the front and rear positions. The upper surface of the longitudinal beams (12) is welded with a side support rod (16) at the front and rear positions. The top of the side support rod (16) is fixedly connected to the front and rear surfaces of the upright (14).

3. A fixing fixture for machining marine valve bodies according to claim 1, characterized in that: The interior of each fixing plate (15) is provided with a through hole for the rotating shaft (25) to pass through. A ball bearing adapted to the rotating shaft (25) is also installed inside the through hole. The distance between the end of the rotating shaft (25) located inside the fixing plate (15) and the inner surface of the fixing plate (15) is 1-3mm.

4. A fixing fixture for machining marine valve bodies according to claim 1, characterized in that: The bottom surface of the base plate (21) is fixed to the top end face of the pole (14) by screws at the four corners. Two bearings (24) adapted to the rotating shaft (25) are fixedly installed on the top surface of the base plate (21).

5. A fixing fixture for machining marine valve bodies according to claim 1, characterized in that: The outer surface of the drive motor (23) is fixedly connected to the side surface of the base plate (21) that is far away from each other. The output shaft of the drive motor (23) is connected to the input end of the reducer (22). The output shaft of the reducer (22) is connected to the end of the rotating shaft (25) that is far away from each other.

6. A fixing fixture for machining marine valve bodies according to claim 1, characterized in that: The ends of the connecting plates (321) that are far apart from each other are connected to the end of the telescopic shaft of the electric push rod (31), and the cross-section of the connecting plate (321) is an inverted "L" shape.

7. A fixing fixture for machining marine valve bodies according to claim 1, characterized in that: The teeth of the drive gear (328) mesh with the teeth of the top half gear (323).

8. A fixing fixture for machining marine valve bodies according to claim 1, characterized in that: Four through-pins for the tie rods (325) are provided on the rear surface of the fixing plate (329).

9. A fixing fixture for machining marine valve bodies according to claim 1, characterized in that: The clamping arms (326) are provided with anti-slip grooves on the side surfaces that are close to each other, and the probe arms (327) are provided with strip-shaped grooves on the side surfaces that are far apart from each other.

10. A method for processing a marine valve body, characterized in that: The present invention relates to a fixing fixture for machining a marine valve body as described in any one of claims 1-9, and the machining method comprises the following steps: S1: The electric push rod (31) drives the valve body gripper (32) to approach the marine valve body (4) until the inner surface of the gripping arm (326) contacts the outer surface of the marine valve body (4), or the probe arm (327) is inserted into the interior of the marine valve body (4). S2: The servo motor (322) drives the drive gear (328) to rotate, which in turn drives the top half gear (323) to rotate and drives the bottom half gear (323) to rotate, so that the two traction arms (324) move closer or further away from each other synchronously. Under the pulling action of the pull rod (325) and the traction arm (324), the clamping arms (326) will move closer or further away from each other. Depending on the size and processing position of the marine valve body (4), the clamping arms (326) can be clamped on the outer surface of the marine valve body (4) with the sides of the clamping arms (326) close to each other, or the probing arms (327) can be inserted into the interior of the marine valve body (4) with the sides of the probing arms (327) far away from each other for expansion clamping. S3: After the valve body gripper (32) clamps the marine valve body component (4), the marine valve body component (4) is flipped according to the processing requirements. The rotational power of the drive motor (23) and the reducer (22) is transmitted to the rotating shaft (25). The rotating shaft (25) forces the valve body gripper (32) and the electric push rod (31) to rotate along the axis, thereby flipping the marine valve body component (4).

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