Search

CN-121972963-A - Efficient trimming device and process for nuclear power vibration-proof bar rolling

CN121972963ACN 121972963 ACN121972963 ACN 121972963ACN-121972963-A

Abstract

The invention relates to the technical field of metal bar manufacturing, in particular to a nuclear power vibration-proof bar rolling efficient trimming device and a nuclear power vibration-proof bar rolling efficient trimming process, comprising a machine frame and an I-shaped processing frame fixedly arranged at the front end of the machine frame, wherein a clamping tool for realizing the functions of positioning and rotating a plate is arranged at an opening at the front end inside the processing frame, a dynamic trimming structure for processing the plate is arranged at the adjacent position of the rear end of the clamping tool inside the processing frame, the clamping tool comprises clamping trays arranged on the inner walls of two sides of the processing frame through the rotating rods, and the clamping tool integrates a plurality of trimming procedures such as automatic positioning and clamping, rotation driving, straightening and polishing, surface dynamic decontamination and the like of the bars into one closed processing frame, so that continuous and automatic trimming of the bars is achieved, and the problems that trimming efficiency is low, trimming quality is unstable, and the trimming requirements of bars with different specifications are difficult to meet in the prior art are solved.

Inventors

  • HUANG ZHI
  • MIN KAI
  • ZHANG QINGHUA

Assignees

  • 江苏裕隆特种金属材料科技有限公司

Dates

Publication Date
20260505
Application Date
20260227

Claims (8)

  1. 1. The efficient trimming device for nuclear power vibration-proof bar rolling is characterized by comprising a machine frame (1) and an I-shaped processing frame (2) fixedly arranged at the front end of the machine frame (1), wherein a clamping tool (3) for realizing the functions of positioning and rotating a plate is arranged at the opening of the front end inside the processing frame (2), and a dynamic trimming structure (4) for processing the plate is arranged at the adjacent part of the rear end of the clamping tool (3) inside the processing frame (2); Wherein, press from both sides material frock (3) including installing clamp charging tray (32) in processing frame (2) both sides inner wall department through bull stick (31), and bull stick (31) are kept away from clamp charging tray (32) end and are extended to processing frame (2) outside, bull stick (31) have fixedly sleeved with biax snap ring in overhanging section, and concave shape's clamp frame (33) have been cup jointed respectively to the inside of every biax snap ring of group, control two sets of screw (34) that screw thread opposite direction are worn to be equipped with respectively in clamp frame (33), two sets of screw (34) run through respectively and set up in processing frame (2) rear end frame groove department, and are provided with biax motor (35) jointly between the two, clamp charging tray (32) fixed mounting has auxiliary rotation gear (36) are kept away from to bull stick (31).
  2. 2. The efficient trimming device for rolling nuclear power vibration-proof bars according to claim 1, wherein the clamping tool (3) is further arranged on a double-shaft motor II (37) at the center of an opening at the front end of the processing frame (2), output shafts at two ends of the double-shaft motor II (37) respectively extend to the outside of the processing frame (2) and are fixedly provided with limiting toothed rollers (38), and two groups of the limiting toothed rollers (38) are respectively meshed with adjacent auxiliary rotating gears (36).
  3. 3. The efficient trimming device for rolling nuclear power vibration-proof bars according to claim 1, wherein the dynamic trimming structure (4) comprises a first clamping frame (41) and a second clamping frame (42) which are sleeved at a center frame body of the processing frame (2) and are fixedly connected, an air cylinder (43) is arranged on the side face of the first clamping frame (41), the air cylinder (43) is arranged on the top face of the processing frame (2) through a machine base, a trimming component I (44) is arranged at the middle section of the front end face of the first clamping frame (41), and a trimming component II (45) is arranged at the upper position of the middle section of the front end face of the second clamping frame (42).
  4. 4. A nuclear power vibration-proof bar rolling high-efficiency trimming device according to claim 3, wherein the trimming assembly I (44) comprises a mounting frame I fixedly mounted at the center of the front end of the clamping frame I (41), a single-shaft motor I (441) is arranged at the inner wall of one side of the mounting frame I, a rotary table 442 is fixedly mounted at the output shaft of the single-shaft motor I (441), a cylindrical pin (443) is fixedly mounted at the rear part of the rotary table 442, which is far away from the center of one side of the shaft, a T-shaped sliding frame (444) is sleeved outside the cylindrical pin (443), the front end of the T-shaped sliding frame (444) extends to the outside of the mounting frame I, and two groups of vertically arranged pressing rollers (445) are connected in a rotating mode.
  5. 5. The efficient trimming device for rolling nuclear power vibration-proof bars according to claim 3, wherein the trimming assembly II (45) comprises a mounting frame II which is arranged at the front end of the clamping frame II (42), an abutting cylinder (451) is hinged at the opening of the front end of the mounting frame II, an abutting shaft (452) is rotatably connected inside the abutting cylinder (451), an arc-shaped sliding block fixedly arranged outside the abutting shaft (452) and an annular groove arranged inside the abutting cylinder (451) form annular sliding, and a dirt removing plate (453) is fixedly arranged at the front end of the abutting shaft (452).
  6. 6. The efficient trimming device for rolling nuclear power vibration-proof bars according to claim 5, wherein the upper end face and the lower end face of the decontamination plate (453) are arranged in a rough surface mode, the rough granularity of the bottom face of the decontamination plate (453) is larger than that of the top face, a retaining plate (454) is vertically arranged in the second installation frame in a sliding mode and located at the bottom of the supporting shaft (452), a plurality of groups of rebound air bags (455) are jointly arranged between the bottom of the retaining plate (454) and the bottom of the second installation frame, the rebound air bags (455) are mutually communicated through pipelines, and one-way valves are arranged on the pipelines.
  7. 7. The efficient trimming device for rolling nuclear power vibration-proof bars according to claim 5, wherein a driven gear (456) is rotatably connected to a shaft section at the rear end of the supporting shaft (452), a driving gear (457) is meshed with the bottom of the driven gear (456), and a single-shaft motor II (458) arranged on the inner wall of the mounting frame II is connected to the rear end of the driving gear (457).
  8. 8. A process for rolling a high-efficiency trimming device for nuclear power vibration-proof bars and rods according to any one of claims 1 to 7, characterized in that it comprises in particular the following steps: The method comprises the steps of feeding and clamping, namely placing a bar to be modified in a clamping tool (3) at the front end of a processing frame (2), starting a double-shaft motor I (35), driving two reverse screw rods (34) to drive a clamping frame (33) to move in opposite directions, enabling a clamping disc (32) to clamp two ends of the bar, and completing positioning; And secondly, rotating and trimming, feeding, starting a double-shaft motor II (37), and driving the bar to rotate at a constant speed through the engagement of a limit toothed roller (38) and an auxiliary rotating gear (36). Simultaneously, the cylinder (43) is started to push the dynamic trimming structure (4) to feed at uniform speed along the axis of the bar; step three, a trimming step one (straightening and preliminary polishing), in which a trimming assembly one (44) works in advance, a pressing roller (445) is driven by a motor to do high-frequency reciprocating motion, continuous and uniform rolling and straightening are carried out on the surface of the rotating bar, and preliminary polishing is completed by utilizing friction force; Step four, a second finishing stage (self-adaptive fine pollution removal), a second finishing assembly (45) starts to work, a pollution removal plate (453) of the second finishing assembly is tightly attached to the surface of the bar under the pressure support of a rebound air bag group (455), the working surfaces with different roughness are utilized to remove pollutants and oxide layers, and the working surfaces of the pollution removal plate can be adjusted through a second single-shaft motor (458) in the process so as to adapt to different finishing requirements; And fifthly, continuously processing and blanking, wherein the process is continuously carried out until the whole length of the bar is finished. After the equipment is reset, the bar material finishing tool (3) is loosened, and the finished bar material can be taken down.

Description

Efficient trimming device and process for nuclear power vibration-proof bar rolling Technical Field The invention relates to the technical field of metal bar manufacturing, in particular to a nuclear power vibration-proof bar rolling high-efficiency trimming device and a nuclear power vibration-proof bar rolling high-efficiency trimming process. Background The electric industry is used as an important component of national energy strategy, the safety and reliability of the electric industry play a critical role, the nuclear power vibration-proof strip is used as a key structural component of a nuclear power station and used for relieving fatigue damage of pipelines, equipment and the like caused by fluid impact or vibration, and the bar quality of the electric power vibration-proof strip is directly related to safe and stable operation of the whole system. Therefore, the nuclear power vibration-proof bar has extremely strict requirements on straightness, surface smoothness and cleanliness. At present, after the nuclear power vibration-proof bar is rolled and formed, a series of later finishing treatments are generally needed, and the conventional finishing process and equipment have the following obvious problems: (1) The problems of scattered working procedures and low efficiency are solved by adopting a conventional treatment mode, wherein the conventional treatment mode is carried out step by means of a plurality of single-function devices (such as a straightener, a polishing machine and a cleaning device), and the bars are required to be clamped and carried repeatedly between different stations, so that the production flow is long and the efficiency is low, secondary scratches or positioning errors are easily caused on the surfaces of the bars due to frequent clamping, and the consistency of the processing precision is affected. (2) The problems of poor straightening and trimming effects are that the traditional straightening mode is static pressure straightening or simple roller straightening, the rod with high precision requirement is difficult to realize omnibearing fine straightening, a straightening blind area is easy to exist, residual stress is unevenly distributed, meanwhile, the surface of the plate is cleaned by adopting a steel wire wheel brush or a fixed grinding tool, the mode is rough, pertinence is lacking, gradient treatment cannot be carried out according to the stubborn degree of dirt, excessive abrasion to a rod matrix is easy to be caused, or stubborn dirt is not thoroughly cleaned, and the quality or the usability of a subsequent coating are affected. In view of the technical drawbacks of this aspect, a solution is now proposed. Disclosure of Invention The invention aims to integrate a plurality of trimming procedures such as automatic positioning and clamping, rotary driving, straightening and polishing, surface dynamic decontamination and the like of the bar into a closed processing frame, so that continuous and automatic trimming of the bar is achieved, and meanwhile, the device can carry out self-adaptive adjustment according to the actual trimming condition of the bar, thereby solving the problems of low trimming efficiency, unstable trimming quality, difficulty in meeting the trimming requirements of bars with different specifications and the like in the prior art. The invention aims at realizing the technical scheme that the efficient trimming device for rolling the nuclear power vibration-proof bar comprises a machine frame and an I-shaped processing frame fixedly arranged at the front end of the machine frame, wherein a clamping tool for realizing the functions of positioning and rotating a plate is arranged at an opening at the front end in the processing frame, and a dynamic trimming structure for processing the plate is arranged at the adjacent position of the rear end of the clamping tool in the processing frame; The clamping tool comprises a clamping disc arranged on the inner walls of two sides of a processing frame through a rotating rod, the rotating rod is far away from the clamping disc end and extends to the outside of the processing frame, a double-shaft clamping ring is fixedly sleeved on an outer extending section of the rotating rod, a clamping frame in a concave shape is sleeved inside each double-shaft clamping ring, screw rods with opposite screw threads are respectively spirally arranged in the clamping frame in a penetrating mode, the screw rods are respectively arranged at the frame groove of the rear end of the processing frame in a penetrating mode, a double-shaft motor I is commonly arranged between the screw rods, and the rotating rod is far away from the clamping disc end and fixedly provided with an auxiliary rotating gear. Further, the clamping tool is further provided with a second double-shaft motor at the center of the opening at the front end of the processing frame, output shafts at two ends of the second double-shaft motor respectively exte