A high-precision valve body machining tensioning device

Abstract

The utility model discloses a kind of valve body processing high-precision tensioning devices, it is related to valve body processing technical field, including adjusting base assembly and clamping assembly, the middle of adjusting base assembly is provided with adjusting base assembly, and the left and right sides of adjusting base assembly are symmetrically provided with moving gantry, the top of moving gantry is installed to clamping assembly.This valve body processing high-precision tensioning device, by being provided with double encoder control machine, mechanical position sensor in clamping assembly, utilize its structural operating characteristic, can possibly control the structure telescopic adjustment of hydraulic push rod to a certain extent, to realize the accurate clamping limit of clamping arc plate to valve body, while guaranteeing the stability of device operation, realize the good fine adjustment on structure, and clamping assembly can realize wide-range adjustment under the cooperative operation of adjusting base assembly and moving gantry, so different clamping effects can be realized.

Description

Technical Field

[0001] This utility model relates to the field of valve body processing technology, specifically a high-precision tensioning device for valve body processing. Background Technology

[0002] Valve body machining refers to a series of processing steps performed on the valve body, the main component of a valve, to ensure it meets design requirements and usage standards. Valve body machining involves multiple steps and processes, each with its specific purpose and technical requirements. A high-precision clamping device for valve body machining is a piece of equipment used in the valve body machining process. Its main purpose is to ensure the valve body remains stable during machining, avoiding machining errors caused by insufficient or excessive clamping force. This device precisely controls the clamping force to ensure that the various parts of the valve body do not move during machining, thereby guaranteeing machining accuracy and product quality.

[0003] Conventional valve body machining tensioning devices directly clamp and fix the valve body using hydraulic push rods. However, due to structural limitations, the clamping accuracy is relatively limited, which may lead to structural deviations and affect subsequent valve body machining. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision tensioning device for valve body machining, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision tensioning device for valve body processing, comprising an adjusting base assembly and a clamping assembly. The adjusting base assembly is disposed in the middle, and movable platforms are symmetrically arranged on the left and right sides of the adjusting base assembly. The clamping assembly is installed on the top of the movable platforms. The clamping assembly includes a device frame, hydraulic push rods, a dual encoder controller, a mechanical position sensor, an assembly frame, and a clamping arc plate. Hydraulic push rods are symmetrically and horizontally installed at both ends of one side of the device frame, and the dual encoder controller is vertically connected to the end of the hydraulic push rods away from the device frame. Mechanical position sensors are installed at both ends of the side of the device frame away from the hydraulic push rods, and the assembly frame is connected to the side of the mechanical position sensor near the platform assembly. At the same time, a clamping arc plate is movably installed on the side of the assembly frame away from the mechanical position sensor.

[0006] Furthermore, the adjustment base assembly includes a base, a servo motor, a bidirectional lead screw, and guide rails. The servo motor is horizontally mounted on one end of the base, and the power output end of the servo motor is horizontally mounted on the servo motor via a coupling. Guide rails are symmetrically arranged on both sides below the bidirectional lead screw.

[0007] Furthermore, the bidirectional lead screw and the guide rail are parallel to each other, and the guide rail is horizontally mounted on the top surface of the base.

[0008] Furthermore, the pedestal assembly includes a fixed platform, an anti-slip platform, and an anti-static coating. The top surface of the fixed platform is equipped with an anti-slip platform, and the outer surfaces of the anti-slip platform and the fixed platform are coated with an anti-static coating.

[0009] Furthermore, the movable platform includes a guide platform, a transmission shaft sleeve, and a combination seat. The transmission shaft sleeve is horizontally arranged at the lower middle end of the guide platform, and the combination seats are symmetrically arranged at both ends of the top of the guide platform.

[0010] Furthermore, the guide platform and the transmission shaft sleeve are fixedly connected, and the combination seat and the guide platform are welded together.

[0011] Furthermore, the guide platform and the guide rail are connected to each other using a slotted embedded structure, and the transmission shaft sleeve and the bidirectional lead screw are connected by threads.

[0012] Furthermore, the dual encoder controller is set up with a dual encoder semi-closed-loop control mode, and the surface of the clamping arc plate is covered with a pad structure made of anti-static rubber material.

[0013] This utility model provides a high-precision tensioning device for valve body machining, which has the following beneficial effects: 1. This utility model connects a dual-encoder controller to one end of each of the two sets of hydraulic push rods. In the synchronous control of the two sets of hydraulic push rods, the dual-encoder controller employs a dual-encoder semi-closed-loop control method. Through linear interpolation and synchronous over-tolerance triple redundant software protection control, the synchronous operation of the two sets of hydraulic push rods is ensured. This control method effectively solves the problem of high-precision synchronous zeroing, improving the system's reliability and operational accuracy. The clamping arc plate is connected to a mechanical position sensor via an assembly frame. Utilizing the structure's operation, the stroke of the hydraulic push rod piston is precisely controlled by the mechanical position sensor, with an accuracy of ±0.5mm. This precise control method ensures the positional accuracy of the two sets of hydraulic push rods during synchronous operation. Through the above structural design, the accuracy of the entire clamping assembly structure can be ensured as much as possible, and fine-tuning of the structure can be achieved, thereby effectively guaranteeing high-precision tensioning of the valve body.

[0014] 2. This utility model connects the clamping assembly and the adjusting base assembly through the structure of the movable platform. Under the operation of the servo motor, the bidirectional lead screw connected to it will rotate axially in the horizontal direction, thereby driving the entire movable platform, which is connected to the transmission shaft sleeve and the bidirectional lead screw, to move horizontally. This allows the clamping assembly connected and installed on the top of the movable platform to move synchronously. With the above structure, the entire clamping assembly can be effectively adjusted within a certain range, thus enabling effective clamping and fixing of valve bodies of different specifications. This ensures the flexibility of the device structure and the structural stability during valve body processing, preventing unnecessary structural deviations. In addition, the antistatic coating sprayed on the surface of the fixed platform and the anti-slip platform, as well as the antistatic rubber pad structure covering the surface of the clamping arc plate, ensures the stability of valve body clamping while preventing external static electricity from causing unnecessary impact on the internal components of the valve body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main body shaft side view of a high-precision tensioning device for valve body processing according to the present invention; Figure 2 This is a schematic diagram of the adjusting base assembly of a high-precision tensioning device for valve body processing according to this utility model; Figure 3 This is a three-dimensional structural diagram of a base assembly for a high-precision tensioning device for valve body processing according to the present invention. Figure 4 This is a three-dimensional structural diagram of a movable platform for a high-precision tensioning device for valve body processing according to the present invention; Figure 5 This is a three-dimensional structural diagram of the clamping component of a high-precision tensioning device for valve body processing according to this utility model.

[0016] In the diagram: 1. Adjustable base assembly; 101. Base; 102. Servo motor; 103. Two-way lead screw; 104. Guide rail; 2. Platform assembly; 201. Fixed platform; 202. Anti-slip platform; 203. Antistatic coating; 3. Moving platform; 301. Guide platform; 302. Transmission shaft sleeve; 303. Combination base; 4. Clamping assembly; 401. Device frame; 402. Hydraulic push rod; 403. Dual encoder controller; 404. Mechanical position sensor; 405. Assembly frame; 405. Clamping arc plate. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] like Figures 1 to 5As shown, a high-precision tensioning device for valve body processing includes an adjusting base assembly 1 and a clamping assembly 4. The adjusting base assembly 1 is located in the middle, and a movable platform 3 is symmetrically arranged on the left and right sides of the adjusting base assembly 1. The clamping assembly 4 is installed on the top of the movable platform 3. The clamping assembly 4 includes a device frame 401, hydraulic push rods 402, a dual encoder controller 403, a mechanical position sensor 404, an assembly frame 405, and a clamping arc plate 406. Hydraulic push rods 402 are symmetrically and horizontally installed at both ends of one side of the device frame 401, and the end of the hydraulic push rod 402 away from the device frame 401 is vertically connected to the dual encoder controller 403. A mechanical position sensor 404 is installed at one end, and an assembly frame 405 is connected to the side of the mechanical position sensor 404 closest to the base assembly 2. At the same time, a clamping arc plate 406 is movably installed on the side of the assembly frame 405 away from the mechanical position sensor 404. The dual encoder controller 403 adopts a dual encoder semi-closed-loop control method. The surface of the clamping arc plate 406 is covered with an anti-static rubber pad structure. By connecting the dual encoder controller 403 to one end of each of the two sets of hydraulic push rods 402, and connecting the clamping arc plate 406 to the mechanical position sensor 404 through the assembly frame 405, the accuracy of the operation of the entire clamping assembly 4 structure can be ensured as much as possible, and fine-tuning of the structure can be achieved.

[0019] like Figures 1 to 5As shown, the adjusting base assembly 1 includes a base 101, a servo motor 102, a bidirectional lead screw 103, and a guide rail 104. The servo motor 102 is horizontally mounted on one end of the base 101, and its power output end is also horizontally mounted via a coupling. Guide rails 104 are symmetrically arranged on both sides below the bidirectional lead screw 103, and are parallel to each other. The guide rails 104 are horizontally mounted on the top surface of the base 101. The platform assembly 2 includes a fixed platform 201, an anti-slip platform 202, and an anti-static coating 203. The anti-slip platform 202 is mounted on the top surface of the fixed platform 201, and both the anti-slip platform 202 and the outer surface of the fixed platform 201 are coated with an anti-static coating 203. The movable platform 3 includes a guide platform 301 and a transmission shaft sleeve 3. 02 and combination seat 303, the lower middle end of the guide table 301 is horizontally provided with a transmission shaft sleeve 302, and the top two ends of the guide table 301 are symmetrically provided with combination seats 303. The guide table 301 and the transmission shaft sleeve 302 are fixedly connected, and the combination seat 303 and the guide table 301 are welded together. The guide table 301 and the guide rail 104 are connected to each other by a slotted embedded structure. The transmission shaft sleeve 302 and the bidirectional lead screw 103 are threaded together. Under the operation of the servo motor 102, the bidirectional lead screw 103 connected to it will rotate axially in the horizontal direction, thereby driving the entire moving frame 3 connected by the transmission shaft sleeve 302 and the bidirectional lead screw 103 to move horizontally, so that the clamping assembly 4 connected and installed on the top of the moving frame 3 moves synchronously.

[0020] In summary, as Figures 1 to 5 As shown, the valve body is processed with a high-precision tensioning device. When in use, the valve body structure to be processed is placed in the middle of the fixed platform 201 with an anti-slip table 202 on top. Then, the base assembly 1 will start to operate synchronously. The servo motor 102 at one end of the base 101 will drive the bidirectional lead screw 103 connected to its power output end to rotate at a uniform speed in the horizontal axis. This causes the moving platform 3, which is connected to the bidirectional lead screw 103 by the transmission shaft sleeve 302, to move along the guide rail 104 and the surface of the bidirectional lead screw 103 at the same time, and causes the clamping assembly 4 connected to the top of the combination seat 303 to move toward one side of the valve body surface. As the clamping arc plate 406 on one side of the assembly frame 405 abuts against the valve body surface, the dual encoder controller 403 and the mechanical position sensor 404 will operate synchronously, thereby controlling the hydraulic push rod 402 on one side of the device frame 401 to achieve structural fine-tuning, so as to ensure the stability of the structural limit to the greatest extent.

[0021] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-precision tensioning device for valve body machining, comprising an adjusting base assembly (1) and a clamping assembly (4), characterized in that: The adjustment base assembly (1) is provided in the middle, and the movable platform (3) is symmetrically arranged on the left and right sides of the adjustment base assembly (1). The clamping assembly (4) is installed on the top of the movable platform (3). The clamping assembly (4) includes a device frame (401), a hydraulic push rod (402), a dual encoder controller (403), a mechanical position sensor (404), an assembly frame (405), and a clamping arc plate (406). The two ends of one side of the device frame (401) are symmetrically and horizontally installed. There is a hydraulic push rod (402), and a dual encoder controller (403) is vertically connected to the end of the hydraulic push rod (402) away from the device frame (401). Mechanical position sensors (404) are installed at both ends on the side of the device frame (401) away from the hydraulic push rod (402). An assembly frame (405) is connected to the side of the mechanical position sensor (404) near the base assembly (2). At the same time, a clamping arc plate (406) is movably installed on the side of the assembly frame (405) away from the mechanical position sensor (404).

2. The high-precision tensioning device for valve body machining according to claim 1, characterized in that, The adjustment base assembly (1) includes a base (101), a servo motor (102), a bidirectional lead screw (103), and a guide rail (104). The servo motor (102) is horizontally mounted on one end of the base (101), and the power output end of the servo motor (102) is horizontally mounted on the servo motor (102) through a coupling. The guide rails (104) are symmetrically arranged on both sides below the bidirectional lead screw (103).

3. The high-precision tensioning device for valve body machining according to claim 2, characterized in that, The bidirectional lead screw (103) and the guide rail (104) are parallel to each other, and the guide rail (104) is horizontally mounted on the top surface of the base (101).

4. The high-precision tensioning device for valve body machining according to claim 1, characterized in that, The pedestal assembly (2) includes a fixed platform (201), an anti-slip platform (202), and an antistatic coating (203). The top surface of the fixed platform (201) is equipped with the anti-slip platform (202), and the outer surfaces of the anti-slip platform (202) and the fixed platform (201) are coated with an antistatic coating (203).

5. The high-precision tensioning device for valve body machining according to claim 1, characterized in that, The movable platform (3) includes a guide platform (301), a transmission shaft sleeve (302) and a combination seat (303). The transmission shaft sleeve (302) is horizontally arranged at the lower middle end of the guide platform (301), and the combination seats (303) are symmetrically arranged at both ends of the top of the guide platform (301).

6. The high-precision tensioning device for valve body machining according to claim 5, characterized in that, The guide platform (301) and the transmission shaft sleeve (302) are fixedly connected, and the combination seat (303) and the guide platform (301) are welded together.

7. A high-precision tensioning device for valve body machining according to claim 5, characterized in that, The guide platform (301) and the guide rail (104) are connected to each other by a slotted embedded structure, and the transmission shaft sleeve (302) and the two-way lead screw (103) are connected by a thread.

8. The high-precision tensioning device for valve body machining according to claim 1, characterized in that, The dual encoder controller (403) is set up with a dual encoder semi-closed loop control mode, and the surface of the clamping arc plate (406) is covered with a pad structure of anti-static rubber material.

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