Valve body pin automatic straightening machine

Abstract

The utility model discloses a valve body pin automatic straightening table, including the pin body, still including the first sleeve and preheating subassembly of sliding setting in the outer wall of pin body, the first sleeve outer wall rotationally arranged has the gear ring, and the left end of gear ring is opened to the second groove body, and the straightening plate is set up in the first sleeve through, and the right end fixedly connected of straightening plate has the fixed column, and the fixed column slidingly sets up in the inner wall of second groove body, and the first sleeve outer wall fixedly connected has the first connecting plate, and the right end rotationally arranged of first connecting plate has the gear wheel. The utility model discloses through starting second motor and driving gear wheel rotation, and the gear wheel is engaged with the gear ring, and drives the gear ring to rotate around the first sleeve. When the gear ring rotates, the second groove body moves inwards along the radial of the first sleeve through the fixed column and drives the straightening plate, and the extruding plate of straightening plate end portion sticks to the outer wall of pin and applies even pressure, and the bending deformation of pin is corrected, and a plurality of straightening plates are extruded synchronously, ensure that the stress of pin each direction is even, avoid the case of secondary deformation.

Description

Technical Field

[0001] This utility model relates to the field of straightening table technology, specifically to an automatic straightening table for valve body pins. Background Technology

[0002] As the core transmission and positioning component of valves (such as ball valves, gate valves, and butterfly valves), the valve body pin plays a crucial role in connecting the valve stem and valve core, transmitting switching torque, and ensuring the coaxiality of the valve core. It directly determines the valve's sealing performance and service life. During production, heat treatment, or transportation, the pin will inevitably undergo bending deformation at the micron to millimeter level, and must be straightened before it can be put into use.

[0003] In existing technology, straightening tables straighten valve body pins using traditional straightening machines (such as manual presses or simple hydraulic straightening machines). The straightening logic is essentially a single-point, unidirectional rigid push, applying concentrated pressure to the bent part of the pin from a single direction through the pressure head, and forcibly correcting the deformation through external force to achieve the straightening effect.

[0004] Valve body pins are mostly made of high-strength alloy steel with high yield strength in the cold state. During the straightening process, the pressure head compresses the material downwards to induce plastic deformation. At this point, the pressure has accumulated to a high value. Due to the lack of opposing support structures, the material flows excessively in the opposite direction under the action of pressure inertia, resulting in over-straightening of the pin body. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, the purpose of this invention is to provide an automatic straightening table for valve body pins. By starting a second motor, a gear rotates, meshing with a gear ring, which in turn drives the gear ring to rotate around a first sleeve. As the gear ring rotates, a second groove, via a fixed column, drives a straightening plate to move radially inward along the first sleeve. The pressing plate at the end of the straightening plate adheres to the outer wall of the pin and applies uniform pressure, correcting the pin's bending deformation. Multiple straightening plates simultaneously press, ensuring uniform force on the pin in all directions and preventing secondary deformation.

[0006] The objective of this utility model is achieved through the following technical solution: The valve body pin automatic straightening table includes a pin body; it also includes a first sleeve and a preheating component that are slidably disposed on the outer wall of the pin body; a toothed ring is rotatably disposed on the outer wall of the first sleeve, and a second groove is opened through the left end of the toothed ring; a straightening plate is disposed through the first sleeve, and a fixing post is fixedly connected to the right end of the straightening plate; the fixing post is slidably disposed on the inner wall of the second groove; a first connecting plate is fixedly connected to the outer wall of the first sleeve; a gear is rotatably disposed on the right end of the first connecting plate, and the gear meshes with the toothed ring; a second motor is fixedly connected to the left end of the first connecting plate, and the gear is fixedly connected to the output end of the second motor.

[0007] In one optional embodiment, multiple sets of straightening plates are provided, and a pressing plate is fixedly connected to one end of the straightening plate near the pin body, with the inner wall surface of the pressing plate fitting against the outer wall surface of the pin body.

[0008] In one optional embodiment, a base plate is provided at the lower end of the pin body, a first groove is provided at the upper end of the base plate, a screw is rotatably provided on the inner wall of the first groove, a first motor is fixedly connected to the right end of the base plate, and the screw is fixedly connected to the output end of the first motor.

[0009] In one optional embodiment, the edges at both ends of the screw are smooth, and a first slider and a second slider are threaded onto the outer wall of the screw, with a first connecting plate fixedly connected to the first slider.

[0010] In one optional embodiment, a support plate is fixedly connected to the upper end of the base plate, a fixing ring is rotatably provided on the upper end of the support plate, a pin body is disposed between the support plate and the fixing ring, and the fixing ring is fixedly connected to the support plate by a fastener.

[0011] In one optional embodiment, the preheating assembly includes a second connecting plate fixed to the upper end of the second slider, a second sleeve fixed to the upper end of the second connecting plate, a heat insulation plate fixed to the inner wall of the second sleeve, and a heater installed on the inner wall of the second sleeve.

[0012] In one optional embodiment, the preheating assembly further includes a sliding plate slidably disposed on the second sleeve, an arc plate fixed to the inner side of the sliding plate, a spring fixed between the arc plate and the second sleeve, a pressing rod fixed to the outer side of the arc plate, and a start switch installed on the inner wall of the second sleeve, wherein the multiple arc plates are in contact with the outer wall of the pin body.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By starting the second motor, the gear rotates, meshing with the gear ring, which in turn drives the gear ring to rotate around the first sleeve. As the gear ring rotates, the second groove, via a fixed column, drives the straightening plate to move radially inward along the first sleeve. The pressing plate at the end of the straightening plate adheres to the outer wall of the pin and applies uniform pressure, correcting the pin's bending deformation. Multiple sets of straightening plates press simultaneously, ensuring uniform force on the pin in all directions and preventing secondary deformation.

[0014] 2. The second sleeve slides on the outer wall of the pin body. Under the action of the spring, the arc plate fits against the outer wall of the pin. When it encounters a bending path during the movement, the protruding end of the outer wall of the pin body will squeeze the sliding plate to move outward, thereby triggering the start switch of the extrusion rod, starting the heater, preheating the bending part, reducing the yield strength of the material surface, and thus improving the straightening effect. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of the automatic valve body pin straightening table; Figure 2 A three-dimensional structural diagram of the first sleeve of the automatic valve body pin straightening table; Figure 3 A three-dimensional structural diagram of the toothed ring of the automatic valve body pin straightening table; Figure 4 A three-dimensional structural diagram of the fixing ring of the automatic straightening table for valve body pins; Figure 5 A three-dimensional cross-sectional view of the heat insulation plate of the automatic valve body pin straightening table; Figure 6 A cross-sectional three-dimensional structural diagram of the second sleeve of the automatic valve body pin straightening table.

[0016] In the diagram: 1. Pin body; 101. First sleeve; 102. Gear ring; 103. Second groove; 104. Straightening plate; 105. Fixing post; 106. First connecting plate; 107. Gear; 108. Second motor; 2. Extrusion plate; 201. Second connecting plate; 202. Second sleeve; 203. Heat insulation plate; 204. Heater; 205. Sliding plate; 206. Arc plate; 207. Spring; 208. Extrusion rod; 209. Start switch; 3. Base plate; 4. First groove; 5. Screw; 6. First motor; 7. First slider; 8. Second slider; 9. Support plate; 10. Fixing ring. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0018] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, the internal connection of two elements, or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0021] Please refer to Figures 1-6 This utility model provides an embodiment of an automatic valve body pin straightening table, including a pin body 1; it also includes a first sleeve 101 slidably disposed on the outer wall of the pin body 1 and a preheating component; a toothed ring 102 is rotatably disposed on the outer wall of the first sleeve 101, a second groove 103 is provided through the left end of the toothed ring 102, a straightening plate 104 is provided through the first sleeve 101, a fixing post 105 is fixedly connected to the right end of the straightening plate 104, and the fixing post 105 is slidably disposed in the second groove 103. 03. The inner wall of the first sleeve 101 is fixedly connected to the outer wall of the first connecting plate 106. A gear 107 is rotatably mounted on the right end of the first connecting plate 106. The gear 107 meshes with the gear ring 102. The left end of the first connecting plate 106 is fixedly connected to the left end of the first connecting plate 106. The output end of the gear 107 is fixedly connected to the output end of the second motor 108. By starting the second motor 108, the gear 107 is driven to rotate, and the gear 107 meshes with the gear ring 102, driving the gear ring 102 to rotate around the first sleeve 101. When the gear ring 102 rotates, the second groove 103 drives the straightening plate 104 to move radially inward along the first sleeve 101 through the fixed column 105. The pressing plate 2 at the end of the straightening plate 104 fits against the outer wall of the pin and applies uniform pressure to correct the bending deformation of the pin. Multiple straightening plates 104 are extruded simultaneously to ensure that the pin is subjected to uniform force in all directions, avoiding secondary deformation. This solves the problem that the lack of opposing support structure causes the material to flow excessively in the opposite direction under pressure inertia, resulting in over-straightening of the pin body 1.

[0022] Please refer to Figures 1-4In a preferred embodiment of this utility model, the straightening plate 104 is provided in multiple sets. A pressing plate 2 is fixedly connected to one end of the straightening plate 104 near the pin body 1. The inner wall of the pressing plate 2 is in contact with the outer wall of the pin body 1. A base plate 3 is provided at the lower end of the pin body 1. A first groove 4 is opened at the upper end of the base plate 3. A screw 5 is rotatably mounted on the inner wall of the first groove 4. A first motor 6 is fixedly connected to the right end of the base plate 3. The screw 5 is fixedly connected to the output end of the first motor 6. The edges at both ends of the screw 5 are smooth. A first slider 7 and a second slider 8 are threaded onto the outer wall of the screw 5. A first connecting plate 106 is fixedly connected to the first slider 7. The upper end of the base plate 3 is fixedly... A support plate 9 is attached, and a fixing ring 10 is rotatably mounted on the upper end of the support plate 9. The pin body 1 is positioned between the support plate 9 and the fixing ring 10. The fixing ring 10 is fixedly connected to the support plate 9 by a fastener. The support plate 9 and the fixing ring 10 cooperate to form a clamping structure, which fixes the pin body 1 in a designated position to prevent the pin from shifting axially or radially during the straightening process and to ensure straightening accuracy. The fixing ring 10 can be rotated to open and close, which facilitates the quick removal and placement of the pin. By providing smooth sections at both ends of the screw 5, the movement of the other slider can be controlled independently by moving one slider to the smooth section, thus avoiding interference with the movement path.

[0023] Please refer to Figures 1-6 In a preferred embodiment of this utility model, the preheating assembly includes a second connecting plate 201 fixed to the upper end of the second slider 8, a second sleeve 202 fixed to the upper end of the second connecting plate 201, a heat insulation plate 203 fixed to the inner wall of the second sleeve 202, and a heater 204 installed on the inner wall of the second sleeve 202. The preheating assembly also includes a sliding plate 205 slidably disposed on the second sleeve 202, an arc plate 206 fixed to the inner side of the sliding plate 205, a spring 207 fixed between the arc plate 206 and the second sleeve 202, a pressing rod 208 fixed to the outer side of the arc plate 206, and an actuation device installed on the inner wall of the second sleeve 202. Switch 209, multiple arc plates 206 are attached to the outer wall of the pin body 1. By pushing the second connecting plate 201, the second slider 8 is moved to the threaded section of the screw 5. The first motor 6 is started to drive the screw 5 to rotate, which drives the second sleeve 202 to slide on the outer wall of the pin body 1. Under the action of the spring 207, the arc plates 206 are attached to the outer wall of the pin. When encountering a curved path during the movement, the protruding end of the outer wall of the pin body 1 will squeeze the sliding plate 205 to move outward, thereby causing the extrusion rod 208 to trigger the start switch 209, which starts the heater 204 to preheat the curved part, reduce the yield strength of the material surface, and thus improve the straightening effect.

[0024] When using it, first open the fixing ring 10 on the support plate 9, place the pin body 1 to be straightened on the support plate 9, close the fixing ring 10 and lock it with the fastener to complete the fixing of the pin. Then, by pushing the second connecting plate 201, the second slider 8 is moved to the threaded section of the screw 5. The screw 5 is driven to rotate by starting the first motor 6, which causes the second sleeve 202 to slide on the outer wall of the pin body 1. Under the action of the spring 207, the arc plate 206 fits against the outer wall of the pin. When encountering a curved path during the movement, the protruding end of the outer wall of the pin body 1 will squeeze the sliding plate 205 to move outward, thereby causing the extrusion rod 208 to trigger the start switch 209, which will start the heater 204 to preheat the curved part, reduce the yield strength of the material surface, and thus improve the straightening effect. After preheating, the first slider 7 is moved to the threaded section of the screw 5 by pushing the first connecting plate 106. The first motor 6 is then started to drive the screw 5 to rotate in the opposite direction, causing the first sleeve 101 to move from the other end of the screw 5 to the bent section. Then, the second motor 108 is started to drive the gear 107 to rotate. The gear 107 meshes with the gear ring 102, driving the gear ring 102 to rotate around the first sleeve 101. As the gear ring 102 rotates, the second groove 103 drives the straightening plate 104 to move radially inward along the first sleeve 101 via the fixed column 105. The pressing plate 2 at the end of the straightening plate 104 adheres to the outer wall of the pin and applies uniform pressure to correct the pin's bending deformation. Multiple sets of straightening plates 104 press simultaneously to ensure uniform force on the pin in all directions, avoiding secondary deformation.

[0025] Through the above steps, the second motor 108 is started to drive the gear 107 to rotate. The gear 107 meshes with the gear ring 102, driving the gear ring 102 to rotate around the first sleeve 101. When the gear ring 102 rotates, the second groove 103 drives the straightening plate 104 to move radially inward along the first sleeve 101 through the fixed column 105. The pressing plate 2 at the end of the straightening plate 104 adheres to the outer wall of the pin and applies uniform pressure to correct the bending deformation of the pin. Multiple sets of straightening plates 104 press synchronously to ensure that the pin is subjected to uniform force in all directions, avoiding secondary deformation. This solves the problem that the lack of opposing support structure causes the material to flow excessively in the opposite direction under pressure inertia, resulting in over-straightening of the pin body 1.

[0026] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations (e.g., variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.) will be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0027] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An automatic valve body pin straightening table, comprising a pin body (1); characterized in that: It also includes a first sleeve (101) slidably disposed on the outer wall of the pin body (1) and a preheating component; a toothed ring (102) is rotatably disposed on the outer wall of the first sleeve (101), a second groove (103) is opened through the left end of the toothed ring (102), a straightening plate (104) is slidably disposed on the first sleeve (101), a fixing column (105) is fixedly connected to the right end of the straightening plate (104), the fixing column (105) is slidably disposed on the inner wall of the second groove (103), a first connecting plate (106) is fixedly connected to the outer wall of the first sleeve (101), a gear (107) is rotatably disposed on the right end of the first connecting plate (106), the gear (107) meshes with the toothed ring (102), a second motor (108) is fixedly connected to the left end of the first connecting plate (106), and the output end of the gear (107) is fixedly connected to the second motor (108).

2. The automatic valve body pin straightening table according to claim 1, characterized in that: The straightening plate (104) is provided in multiple sets. The end of the straightening plate (104) close to the pin body (1) is fixed with a pressing plate (2). The inner wall surface of the pressing plate (2) is in contact with the outer wall surface of the pin body (1).

3. The automatic valve body pin straightening table according to claim 1, characterized in that: The pin body (1) has a base plate (3) at the lower end, and a first groove (4) is opened at the upper end of the base plate (3). A screw (5) is rotatably installed on the inner wall of the first groove (4). A first motor (6) is fixedly connected to the right end of the base plate (3). The screw (5) is fixedly connected to the output end of the first motor (6).

4. The automatic valve body pin straightening table according to claim 3, characterized in that: The edges at both ends of the screw (5) are smooth. The screw (5) has a first slider (7) and a second slider (8) threaded on its outer wall. The first connecting plate (106) is fixedly connected to the first slider (7).

5. The automatic valve body pin straightening table according to claim 3, characterized in that: A support plate (9) is fixedly connected to the upper end of the base plate (3). A fixing ring (10) is rotatably set on the upper end of the support plate (9). The pin body (1) is set between the support plate (9) and the fixing ring (10). The fixing ring (10) is fixedly connected to the support plate (9) through a fastener.

6. The automatic valve body pin straightening table according to claim 4, characterized in that: The preheating assembly includes a second connecting plate (201) fixed to the upper end of the second slider (8), a second sleeve (202) fixed to the upper end of the second connecting plate (201), a heat insulation plate (203) fixed to the inner wall of the second sleeve (202), and a heater (204) installed on the inner wall of the second sleeve (202).

7. The automatic valve body pin straightening table according to claim 6, characterized in that: The preheating assembly also includes a sliding plate (205) slidably disposed on the second sleeve (202), an arc plate (206) fixed to the inner side of the sliding plate (205), a spring (207) fixed between the arc plate (206) and the second sleeve (202), a pressing rod (208) fixed to the outer side of the arc plate (206), and a start switch (209) installed on the inner wall of the second sleeve (202). The multiple arc plates (206) are in contact with the outer wall of the pin body (1).

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