A cutting tool for turning drive rod of nuclear power plant
A drive rod and nuclear power plant technology, applied in the direction of cutting tools for lathes, turning equipment, manufacturing tools, etc., can solve the problem of unseen written records of drive rod tooth profile processing, difficult position error control, and uncertain tool wear, etc. problems, to achieve the effect of benefiting integrity, reducing contact area and improving coaxiality
Active Publication Date: 2016-03-23
NUCLEAR POWER INSTITUTE OF CHINA +1
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the instability of the processing system, the inhomogeneity of the processed material, the change of the tool manufacturing error and the processing state, the wear degree of the tool is also uncertain, so the current empirical compensation method also has inaccurate compensation data and multiple errors. Change and other issues
Therefore, the wear of the tool is the main problem that causes the tooth shape error, size error and position error of the drive rod to be difficult to control.
[0004] After technical investigation, so far, no manufacturer has used forming knives in the processing of the driving rod tooth shape in the control rod driving mechanism for nuclear power plants, nor has any use of forming knives for control rod driving mechanisms for nuclear power plants Written records of the processing of the drive rod tooth profile
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0022] Such as Figures 1 to 3 As shown, a cutting tool for turning a drive rod of a nuclear power plant in the present invention includes a handle 1, and a cutter head 2 is connected to the bottom of the handle 1. The cutter head 2 is made of high-hardness cemented carbide, and has two symmetrical axes about the handle. Symmetrically distributed side edges 3, the main deflection angle between the side edges 3 and the axis of symmetry is 45°±30′, the bottoms of the two side edges 3 are connected to form a chisel edge 4, and the chisel edge 4 is recessed inward by 0.5 mm to form a transition gap 5. The notch cuts the side edge 3, so that the apex of the side edge 3 forms two transition fillets. The transition fillet is the maximum amount of feed for secondary processing, and also provides the best trace of the knife. According to the driving rod 6 The material characteristics and the selected tool material determine the appropriate cutting parameters and other geometric paramet...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a cutter for turning a diving rod of a nuclear power station. The cutter comprises a cutter handle, and a cutter head is arranged on the lower portion of the cutter handle. The cutter head is provided with two side blades, the two side blades are connected through a cross blade, and the cross blade is concave inward to form a transitional notch along the axial line of the cutter head. The structural mode that the cross blade of a cutting groove bottom is concave inward to form the transitional notch, so that in the cutting process of the side blades, the bottom cross blade of a forming cutter does not participate in cutting of the groove bottom, and the main part generating radial resistance of the forming cutter is avoided. The two side blades are symmetrically distributed by the axial line of the cutter head, so that two symmetrical side blade edges can simultaneously cut in and out, and the abrasion of the two blade edges are basically symmetric. Normal rake angles gmma are formed in the front cutting faces of the two side blades, the arrangement of the normal rake angles gmma not only increases the sharpness of the cutter, but also reduces the contacting area of remaining materials after cutting and the cutter and reduces cutting resistance, and meanwhile the completeness of a finished surface is better achieved.
Description
technical field [0001] The invention relates to a tool for machining, in particular to a tool for turning a driving rod of a nuclear power plant. Background technique [0002] The control rod drive mechanism is a component that drives the control rod assembly to move up and down in the core or maintain it at a certain height. Reliable rod drop and other characteristics. [0003] At present, the processing of the tooth shape of the drive rod in the control rod drive mechanism used in nuclear power plants in our country adopts single-edged knife combined with numerical control machining technology. Its main feature is that the size, shape accuracy and position accuracy of the tooth shape are all controlled by programming simulation, while Various accumulated errors caused by wear are compensated by the program, but the CNC machine tools currently used by manufacturers are basically open or semi-closed CNC machine tools, which cannot track and compensate for tool wear in time....
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B23B27/06
Inventor 胡运峰
Owner NUCLEAR POWER INSTITUTE OF CHINA