Rolling knife for end surface of step hole
A rolling knife and step hole technology, which is applied in the field of mechanical processing, can solve the problems such as the difficulty of finishing the end face of the step hole, and achieve the effect of improving the surface roughness and mechanical properties of the workpiece, simple structure and convenient use
Active Publication Date: 2012-03-07
PINGGAO GRP
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Problems solved by technology
[0003] The purpose of the present invention is to provide a simple-structured and easy-to-use step hole end face rolling cutter to solve the technical problem in the prior art that it is difficult to finish the step hole end face
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[0021] Such as Figure 2 to Figure 6 As shown, an embodiment of a step hole end surface rolling tool, the rolling knife in this embodiment is composed of a handle and a cutter head installed on the handle, and the handle is composed of a tool rod 1 extending in a straight line and connected to the The mounting seat 4 that is used to install the cutter head at the end of the cutter bar is composed of an assembly hole 41 provided on the mounting seat 4. The axis of the assembly hole intersects with the central axis of the cutter bar. The cutter head is a roller 2. The column 2 is rotatably fitted in the assembly hole through the bearing structure arranged between the roller and the assembly hole. One end of the roller 2 extending out of the assembly hole of the mounting seat has a roller for rolling the end surface of the stepped hole to be processed. The pressing part and the rolling part are in the structure of a revolving body, and the rotating peripheral surface around the a...
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The invention discloses a rolling knife for an end surface of a step hole, which comprises a knife handle, wherein a knife head is rotatably assembled on the knife handle through a bearing structure; a rotating central axial line of the bearing structure extends towards the circumferential outside of the knife handle; a rolling part in a rotary body structure is arranged at the end part of the knife head; a rotary central axial line of the rolling part is collinear with the rotating central axial line of the bearing structure; and a rotary circumferential surface of the rolling part around the rotary central axial line is a rolling work surface for rolling and processing the end surface to be processed of the step hole. When the rolling knife is in use, the rolling knife moves to the interior of the step hole; when the rolling work surface of the rolling part of the knife head is enabled to press the end surface to be processed of the step hole, the rolling work surface clings to the end surface to be processed and a certain pressing quantity is required to be reserved between the rolling work surface and the end surface to be processed; when the knife handle drives the knife head to rotate, the rolling work surface rolls on the end surface to be processed and compacts the end surface to be processed under the actions of elasticity and friction between the rolling work surface of the rolling part of the knife head and the end surface to be processed of the step hole, and thereby the rolling processing for the end surface to be processed of the step hole is realized.
Description
technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to rolling processing technology, in particular to a rolling knife for a stepped hole end face. Background technique [0002] At present, countersinking, grinding, rolling and other processing techniques are often used to finish the surface to be processed, so that the roughness of the surface to be processed can meet the design requirements. The valve body structure of the existing high pressure switch is as follows: figure 1 As shown, there are multiple coaxial stepped holes inside, and the diameter of the stepped holes of this part is relatively small, and the roughness of the end surface of the stepped holes is relatively high, and the design requirement is 0.8um. However, the use of countersinking technology to process the end surface of the stepped hole cannot meet the design roughness requirements. If the countersinking and grinding process is used, although the ...
Claims
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IPC IPC(8): B23P9/02
Inventor 张子明
Owner PINGGAO GRP