A fixture for valve production

Abstract

The application relates to the technical field of valve machining auxiliary devices, in particular to a fixing device for valve production, which comprises a supporting base, the top of the supporting base is fixedly connected with symmetrically-distributed fixing plates, movable rods are penetrated through the inside of the fixing plates, the outside of the movable rods is fixedly connected with abutting plates, a plurality of fixing columns in circumferential distribution are penetrated through the side wall of the movable rods, a rotating rod is arranged in the inside of the supporting base, the rotating rod is connected with the movable rods through a pushing mechanism, the pushing mechanism is used for pushing the movable rods, so that the two abutting plates respectively fix the valve from the two sides of the valve, the rotating rod is connected with the plurality of fixing columns through a driving mechanism; the two abutting plates respectively fix the valve from the two sides of the valve, the plurality of fixing columns in circumferential distribution extrude and fix the valve from the inside of the valve, the stability during valve machining can be effectively improved, and the shaking phenomenon during valve machining can be avoided.

Description

Technical Field

[0001] This invention relates to the field of valve processing auxiliary devices, specifically a fixed device used in valve production. Background Technology

[0002] Valves are control components in pipeline fluid transport systems, used to change the cross-sectional area of ​​the passage and the direction of medium flow. They have functions such as guiding, stopping, throttling, checking back, diverting or overflowing and relieving pressure. They can be used to control the flow of various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metals and radioactive fluids. Valves usually have interfaces at both ends for connecting pipelines on both sides.

[0003] During valve production, valve test pieces need to be fixed to facilitate drilling, grinding, or other processing in later stages. In existing technologies, valves are mostly fixed by two relatively distributed abutments. However, this fixing method often only fixes the valve from both sides, resulting in poor stability and making the valve prone to shaking during processing. Summary of the Invention

[0004] The purpose of this invention is to provide a fixing device for valve production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fixing device for valve production includes a support base. A symmetrically distributed fixing plate is fixedly connected to the top of the support base. A movable rod passes through the interior of each fixing plate, and a stop plate is fixedly connected to the exterior of each movable rod. Multiple circumferentially distributed fixing columns pass through the sidewalls of the movable rods. A rotating rod is located inside the support base, with one end passing through the sidewall of the support base. The rotating rod is connected to the movable rod via a pushing mechanism, which pushes the movable rod to fix the valve from both sides. The rotating rod is connected to the multiple fixing columns via a driving mechanism, which drives the multiple fixing columns to move synchronously, thereby fixing the valve from inside the valve. A self-locking mechanism is provided between the support base and the rotating rod. After the stop plates and the stop plates have fixed the valve, the self-locking mechanism fixes the rotating rod.

[0007] Preferably, the pushing mechanism includes a trapezoidal block fixed to the end of the movable rod, a first push rod passing through the top of the support base, the upper end of the first push rod abutting against the inclined surface of the trapezoidal block, a first pressing component provided outside the rotating rod, the first pressing component being used to press the first push rod, thereby enabling the upper end of the first push rod to press against the inclined surface of the trapezoidal block, wherein the abutment plate is connected to the fixed plate through a first elastic component.

[0008] Preferably, the first extrusion assembly includes a first turntable fixed to the outside of the rotating rod, the side of the first turntable abutting against the end of the first push rod, and the side of the first push rod is provided with a groove. A first baffle is fixedly connected to the outside of the first push rod, and the first baffle is connected to the inner wall of the support seat through a second elastic component.

[0009] Preferably, the driving mechanism includes a limiting plate fixed inside the movable rod, a sliding rod passing through the limiting plate, a plurality of first connecting rods rotatably connected to one end of the sliding rod, the ends of the first connecting rods away from the sliding rod being rotatably connected to a plurality of fixed columns, a second connecting rod rotatably connected to the end of the sliding rod away from the first connecting rod, a support rod rotatably connected to the other end of the second connecting rod, the support rod passing through the side wall of the movable rod, a push plate being fixedly connected to the end of the support rod passing through the side wall of the movable rod, and a second pressing assembly provided outside the rotating rod, the second pressing assembly being used to press the push plate, thereby enabling the fixed columns to fix the valve from inside the valve.

[0010] Preferably, a support plate is fixedly connected to the outside of the slide bar, and the support plate is connected to the limiting plate through a third elastic component.

[0011] Preferably, the second extrusion assembly includes a second push rod that passes through the top of the support base, a second baffle that is fixedly connected to the outside of the second push rod, the second baffle being connected to the inner wall of the support base through a fourth elastic component, a second turntable that is fixedly connected to the outside of the rotating rod, the side of the second turntable abutting against the end of the second push rod, and the side of the second turntable having a protrusion.

[0012] Preferably, the self-locking mechanism includes a positioning plate fixed to the outside of the rotating rod, a pin passing through the inside of the positioning plate, one end of the pin abutting against the outer wall of the support base, and the other end of the pin having a protrusion. The protrusion is connected to the positioning plate through a fifth elastic component, wherein the outer wall of the support base has a pin groove adapted to the pin.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention fixes the valve from both sides by two relatively distributed abutments. After the abutments fix the valve, the movable rod extends into the valve. The fixing posts penetrating the inner wall of the movable rod move towards the inner wall of the valve until the ends of the fixing posts abut against the inner wall of the valve. By pressing and fixing the valve from the inside through multiple circumferentially distributed fixing posts, the stability of the valve during processing can be effectively improved, thereby avoiding the shaking phenomenon that occurs during valve processing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of the support base in an embodiment of the present invention.

[0015] Figure 2This is a schematic diagram of the internal structure of the support base in an embodiment of the present invention.

[0016] Figure 3 This is a cross-sectional view of the internal structure of the movable rod in an embodiment of the present invention.

[0017] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0018] Figure 5 for Figure 2 Enlarged view of section B in the middle.

[0019] In the diagram: 1-Support base; 2-Fixed plate; 3-Moving rod; 4-Abutment plate; 5-Pushing mechanism; 51-First elastic component; 52-Trapezoidal block; 53-First push rod; 54-Second elastic component; 55-First baffle; 56-First turntable; 57-Groove; 6-Drive mechanism; 61-First connecting rod; 62-Slide rod; 63-Limiting plate; 64-Third elastic component; 65-Support plate; 66-Second connecting rod; 67-Support rod; 68-Push plate; 69-Second push rod; 610-Fourth elastic component; 611-Second baffle; 612-Second turntable; 613-Protrusion; 7-Self-locking mechanism; 71-Pin groove; 72-Positioning plate; 73-Pin rod; 74-Fifth elastic component; 75-Protrusion; 8-Fixed column; 9-Rotating rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0022] In one embodiment, see Figure 1 and Figure 2A fixing device for valve production includes a support base 1. A symmetrically distributed fixing plate 2 is fixedly connected to the top of the support base 1. Movable rods 3 penetrate the interior of each fixing plate 2. Abutment plates 4 are fixedly connected to the exterior of each movable rod 3. Multiple circumferentially distributed fixing columns 8 penetrate the sidewalls of the movable rods 3. A rotating rod 9 is provided inside the support base 1, with one end penetrating the sidewall of the support base 1. The rotating rod 9 is connected to the movable rods 3 via a pushing mechanism 5, which pushes the movable rods 3, thereby fixing the valve from both sides of the valve using two abutment plates 4. The rotating rod 9 is connected to the multiple fixing columns 8 via a driving mechanism 6, which drives the multiple fixing columns 8 to move synchronously, thereby fixing the valve from inside the valve. A self-locking mechanism 7 is provided between the support base 1 and the rotating rod 9. After the abutment plates 4 have fixed the valve, the self-locking mechanism 7 fixes the rotating rod 9.

[0023] In this embodiment, when fixing the valve, the valve is placed on the surface of the support base 1, with the openings on both sides of the valve facing the two movable rods 3 respectively. Then, the rotating rod 9 is rotated. As the rotating rod 9 rotates, it first pushes the two movable rods 3 through the pushing mechanism 5. The movable rods 3 drive the two abutments 4 to move closer to each other until the two abutments 4 are tightly fitted to both ends of the valve. The two abutments 4 can complete the initial fixing of the valve. After the abutments 4 have completed the initial fixing of the valve, the ends of the movable rods 3 will extend into the interior of the valve. Then, the rotating rod 9 is rotated again. At this time, the rotating rod 9 no longer passes through the pushing mechanism. Instead of pressing the push rod with mechanism 5, the drive mechanism 6 drives multiple fixed columns 8 to move synchronously, causing the fixed columns 8 to move towards the inner wall of the valve until the ends of the fixed columns 8 abut against the inner wall of the valve. The valve is pressed and fixed from the inside by multiple circumferentially distributed fixed columns 8, which can further improve the stability of the valve during the processing. After the fixed columns 8 have fixed the valve, the self-locking mechanism 7 between the support base 1 and the rotating rod 9 will automatically fix the rotating rod 9, ensuring the stability of the rotating rod 9, and thus ensuring the fixing effect of the fixed columns 8 on the valve.

[0024] Please see Figure 2 The pushing mechanism 5 includes a trapezoidal block 52 fixed to the end of the movable rod 3. A first push rod 53 passes through the top of the support base 1. The upper end of the first push rod 53 abuts against the inclined surface of the trapezoidal block 52. A first pressing component is provided outside the rotating rod 9. The first pressing component is used to press the first push rod 53, so that the upper end of the first push rod 53 can press the inclined surface of the trapezoidal block 52. The abutment plate 4 is connected to the fixed plate 2 through the first elastic component 51.

[0025] When fixing the valve, rotating the rotating rod 9 causes the rotating rod 9 to press the first push rod 53 through the first pressing component. The first push rod 53 presses the inclined surface of the trapezoidal block 52, thereby causing the movable rod 3 to drive the abutment 4 to move closer together. When the abutment 4 is tightly fitted to both ends of the valve, even if the rotating rod 9 is rotated further, the degree of pressing of the first pressing component on the trapezoidal block 52 will not change, thus avoiding excessive pressure on the valve by the abutment 4 and preventing damage to the valve. This ensures the fixing effect of the abutment 4 on the valve. When the first pressing component stops pressing the trapezoidal block 52, the first elastic component 51 can play a restoring role on the abutment 4. The first elastic component 51 can be a spring.

[0026] Please see Figure 5 The first extrusion assembly includes a first turntable 56 fixed to the outside of the rotating rod 9. The side of the first turntable 56 abuts against the end of the first push rod 53, and the side of the first push rod 53 is provided with a groove 57. A first baffle 55 is fixedly connected to the outside of the first push rod 53. The first baffle 55 is connected to the inner wall of the support base 1 through a second elastic member 54.

[0027] When fixing the valve, rotating the rotating rod 9 causes the first turntable 56 to rotate. Initially, the groove 57 on the side of the first turntable 56 abuts against the end of the first push rod 53. As the rotating rod 9 rotates, the first turntable 56 presses against the first push rod 53, causing the first push rod 53 to move upward and press against the inclined surface of the trapezoidal block 52. When the abutment 4 is in contact with the end of the valve, the circular surface of the first turntable 56 is in contact with the lower end of the first push rod 53. At this time, even if the rotating rod 9 continues to rotate, the pressing force of the first turntable 56 on the first push rod 53 will not change, avoiding excessive pressure on the valve from the abutment 4 and thus preventing damage to the valve. This ensures the fixing effect of the abutment 4 on the valve. The first baffle 55 and the second elastic component 54 can play a reset role for the first push rod 53. The second elastic component 54 can be a spring.

[0028] Please see Figure 2 and Figure 3 The driving mechanism 6 includes a limiting plate 63 fixed inside the movable rod 3. A sliding rod 62 passes through the limiting plate 63. One end of the sliding rod 62 is rotatably connected to a plurality of first connecting rods 61. The ends of the first connecting rods 61 away from the sliding rod 62 are respectively rotatably connected to a plurality of fixed columns 8. The end of the sliding rod 62 away from the first connecting rod 61 is rotatably connected to a second connecting rod 66. The other end of the second connecting rod 66 is rotatably connected to a support rod 67. The support rod 67 passes through the side wall of the movable rod 3. A push plate 68 is fixedly connected to one end of the support rod 67 that passes through the side wall of the movable rod 3. A second pressing assembly is provided outside the rotating rod 9. The second pressing assembly is used to press the push plate 68, so that the fixed columns 8 can fix the valve from inside the valve.

[0029] After the abutment plate 4 has initially fixed the valve, the end of the movable rod 3 will extend into the valve. At the same time, the push plate 68 moves directly above the second extrusion assembly. At this time, the rotating rod 9 continues to rotate. The rotating rod 9 extrudes the push plate 68 through the second assembly. The push plate 68 drives the support rod 67 to move upward. The support rod 67 drives the slide rod 62 to move horizontally through the second connecting rod 66. The slide rod 62 drives multiple fixed columns 8 to move synchronously through the first connecting rod 61. This causes the fixed columns 8 to move towards the inner wall of the valve until the end of the fixed column 8 abuts against the inner wall of the valve. By using multiple circumferentially distributed fixed columns 8 to extrude and fix the valve from the inside, the stability of the valve during the processing can be further improved.

[0030] Please see Figure 3 The slide bar 62 is externally fixedly connected to a support plate 65, and the support plate 65 is connected to the limiting plate 63 through a third elastic component 64.

[0031] When the second extrusion assembly does not extrude the push plate 68, the third elastic component 64 and the support plate 65 provide elastic support for the slide rod 62. The fixed column 8 is in the initial position, and the length of the fixed column 8 outside the movable rod 3 is relatively short, so that the fixed column 8 can extend into the valve. The third elastic component 64 can be a spring.

[0032] Please see Figure 5 The second extrusion assembly includes a second push rod 69 that passes through the top of the support base 1. A second baffle 611 is fixedly connected to the outside of the second push rod 69. The second baffle 611 is connected to the inner wall of the support base 1 through a fourth elastic member 610. A second turntable 612 is fixedly connected to the outside of the rotating rod 9. The side of the second turntable 612 abuts against the end of the second push rod 69, and a protrusion 613 is provided on the side of the second turntable 612.

[0033] After the abutment plate 4 has initially fixed the valve, the rotating rod 9 is rotated. Initially, the circular surface of the second turntable 612 is in contact with the lower end of the second push rod 69. At this time, rotating the rotating rod 9 will not change the degree of pressure of the second turntable 612 on the second push rod 69, and the fixing post 8 will always be in the initial position, so that the fixing post 8 can be inserted into the valve. After the abutment plate 4 has fixed the valve, the protrusion 613 on the side of the second turntable 612 begins to press the second push rod 69, so that the second push rod 69 presses the push plate 68, and then the fixing post 8 moves towards the inner wall of the valve, thereby completing the further fixing of the valve. The second baffle 611 and the fourth elastic component 610 can play a reset role for the second push rod 69. The fourth elastic component 610 can be a spring.

[0034] Please see Figure 4The self-locking mechanism 7 includes a positioning plate 72 fixed to the outside of the rotating rod 9. A pin 73 passes through the inside of the positioning plate 72. One end of the pin 73 abuts against the outer wall of the support base 1, and the other end of the pin 73 is provided with a protrusion 75. The protrusion 75 is connected to the positioning plate 72 through a fifth elastic component 74. The outer wall of the support base 1 is provided with a pin groove 71 that matches the pin 73.

[0035] As the rotating rod 9 rotates, it drives the positioning plate 72 to rotate. The positioning plate 72 drives the pin 73 to move in a circular motion. After the abutment plate 4 and the fixing column 8 have fixed the valve, the pin 73 is just aligned with the pin groove 71. At this time, under the action of the fifth elastic component 74 and the protrusion 75, the pin 73 automatically enters the pin groove 71. The pin groove 71 fixes the positioning plate 72 through the pin 73, ensuring the stability of the rotating rod 9, and thus ensuring the fixing effect of the abutment plate 4 and the fixing column 8 on the valve. The fifth elastic component 74 can be a spring.

[0036] Working principle: When fixing the valve, the rotating rod 9 is rotated, which drives the first turntable 56 and the second turntable 612 to rotate. Initially, the groove 57 on the side of the first turntable 56 abuts against the end of the first push rod 53. As the rotating rod 9 rotates, the first turntable 56 presses against the first push rod 53, and the first push rod 53 presses against the inclined surface of the trapezoidal block 52. This causes the movable rod 3 to bring the abutment plates 4 closer together. The relatively distributed abutment plates 4 can play a preliminary fixing role for the valve. When the abutment plates 4 are tightly fitted to both ends of the valve, even if the rotating rod 9 continues to rotate, the pressing force of the first turntable 56 on the first push rod 53 will not change. After the abutment plates 4 have fixed the valve, the protrusion 613 on the side of the second turntable 612 begins to press against the second push rod 69. The second push rod 69 presses against the push plate 68, causing the push plate 68 to move the support rod 67 upward. The support rod 67, through the second connecting rod 66, drives the slide rod 62 to move horizontally. The slide rod 62, through the first connecting rod 61, drives multiple fixed columns 8 to move synchronously, causing the fixed columns 8 to move towards the inner wall of the valve until the end of the fixed column 8 abuts against the inner wall of the valve. The multiple circumferentially distributed fixed columns 8 press and fix the valve from the inside, which can further improve the stability of the valve during the processing. After the fixed columns 8 have fixed the valve, the pin 73 automatically enters the pin groove 71. The pin groove 71, through the pin 73, fixes the positioning plate 72, and in turn fixes the rotating rod 9, effectively ensuring the fixing effect of the abutment plate 4 and the fixed columns 8 on the valve.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixing device for valve production, comprising a support base; characterized in that, The top of the support base is fixedly connected to symmetrically distributed fixed plates, each with a movable rod penetrating its interior. Each movable rod is fixedly connected to a stop plate, and multiple fixed columns are circumferentially distributed along the sidewalls of the movable rods. The support base contains a rotating rod, one end of which penetrates the sidewall of the support base. The rotating rod is connected to the movable rod via a pushing mechanism, which pushes the movable rod, thereby fixing the valve from both sides of the valve using two stop plates. The rotating rod is connected to the multiple fixed columns via a driving mechanism, which drives the multiple fixed columns to move synchronously, thus fixing the valve from inside the valve. A self-locking mechanism is provided between the support base and the rotating rod. After the stop plates and the stop plates have fixed the valve, the self-locking mechanism is used to fix the rotating rod. The driving mechanism includes a limiting plate fixed inside the movable rod, a sliding rod passing through the limiting plate, a plurality of first connecting rods rotatably connected to one end of the sliding rod, a plurality of fixed columns rotatably connected to the end of the first connecting rod away from the sliding rod, a second connecting rod rotatably connected to the other end of the sliding rod, a support rod rotatably connected to the other end of the second connecting rod, the support rod passing through the side wall of the movable rod, a push plate fixedly connected to the end of the support rod passing through the side wall of the movable rod, and a second pressing assembly provided outside the rotating rod, the second pressing assembly being used to press the push plate, thereby enabling the fixed columns to fix the valve from inside the valve; The self-locking mechanism includes a positioning plate fixed to the outside of the rotating rod. A pin passes through the inside of the positioning plate. One end of the pin abuts against the outer wall of the support base, and the other end of the pin is provided with a protrusion. The protrusion is connected to the positioning plate through a fifth elastic component. The outer wall of the support base is provided with a pin groove that matches the pin.

2. The fixing device for valve production according to claim 1, characterized in that, The pushing mechanism includes a trapezoidal block fixed to the end of the movable rod. A first push rod passes through the top of the support base. The upper end of the first push rod abuts against the inclined surface of the trapezoidal block. A first pressing component is provided outside the rotating rod. The first pressing component is used to press the first push rod, so that the upper end of the first push rod can press against the inclined surface of the trapezoidal block. The abutment plate is connected to the fixed plate through a first elastic component.

3. A fixing device for valve production according to claim 2, characterized in that, The first extrusion assembly includes a first turntable fixed to the outside of the rotating rod, the side of the first turntable abutting against the end of the first push rod, and the side of the first turntable is provided with a groove. A first baffle is fixedly connected to the outside of the first push rod, and the first baffle is connected to the inner wall of the support seat through a second elastic component.

4. A fixing device for valve production according to claim 1, characterized in that, The slide bar is fixedly connected to a support plate, which is connected to a limiting plate via a third elastic component.

5. A fixing device for valve production according to claim 1 or 4, characterized in that, The second extrusion assembly includes a second push rod that passes through the top of the support base. A second baffle is fixedly connected to the outside of the second push rod. The second baffle is connected to the inner wall of the support base through a fourth elastic component. A second turntable is fixedly connected to the outside of the rotating rod. The side of the second turntable abuts against the end of the second push rod, and the side of the second turntable is provided with a protrusion.

Images