A boring bar mechanism for chamfering the inner hole of the boring box
A technology of boring bar and inner hole, which is applied to boring bars and other directions, can solve the problems of high manufacturing cost, complex structure, inconvenient use and maintenance, etc., and achieve the effects of low manufacturing cost, simple structure, and convenient use and maintenance.
Active Publication Date: 2016-03-30
ANHUI QUANCHAI ENGINE
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Problems solved by technology
The conventional chamfering mechanism uses a hydraulic cylinder to drive the chamfering tool to expand and contract, but the structure is complex, the manufacturing cost is high, and the use and maintenance are inconvenient, and the machine tool must have a hydraulic system
Method used
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Embodiment
[0023] The working principle of the present invention is as follows:
[0024] see figure 1 , figure 2 . During machine tool processing, the boring bar 2 is fed to the left with the machine slide table. At this time, the inner hole chamfering tool 3 is in the retracted state, and the inner hole chamfering tool 3 can smoothly enter the box body 1. When the boring bar 2 continues to When feeding to the left, the pressure sleeve 7 is squeezed after contacting the box body 1, the pressure sleeve 7 pushes the rod seat 9 through the steel balls 8 covering the circumference, the rod seat 9 pushes the pull rod 10, and the pull rod 10 pulls the shift fork in 5 directions Move to the right, the two fork legs of the shift fork 5 push the left and right inclined grooves of the tool slide 4 and the inner hole chamfering tool 3 to protrude outward, so as to realize the chamfering of the inner hole of the box; when the boring bar 2 is finished When backing back to the right, the pressure ...
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The invention relates to a boring bar mechanism for boring inner hole chamfers of a box. The boring bar mechanism comprises a boring bar, an inner hole chamfering tool, a tool slider, a shifting fork, a press sleeve, a pull rod seat, a pull rod and the like. The mechanism is installed on the boring bar of a special purpose machine tool, when in machining, the boring bar is fed along with a machine tool sliding table, an axial extrusion force is generated after the press sleeve of the boring bar mechanism contacts with the machining box, the extrusion force drives relevant parts of the boring bar mechanism to interact with one another, and thus the chamfering tool stretches out. When the boring bar retreats, the boring bar mechanism is not extruded by the box, and the force of a spring in the mechanism compels the chamfering tool to retract to the original position. The boring bar mechanism is simple in structure, low in manufacture cost and convenient to use and maintain, does not influence the arrangement and installation of other boring tools on the boring bar, and can be applied to the special machine tools without hydraulic systems.
Description
technical field [0001] The invention relates to a machining boring bar mechanism, in particular to a boring bar mechanism for chamfering the inner hole of a boring box. Background technique [0002] Generally speaking, the use of special machine tools to process mechanical box parts often encounters the following situation: the diameter difference between the inner and outer holes of the box is small, and the inner hole needs to be chamfered, but the rotation diameter of the chamfering tool is larger than that of the outer hole. The diameter of the hole, the chamfering tool cannot directly enter and exit the box from the outer hole. The solution to the above-mentioned problem is: on the special machine boring bar for processing the box body, a retractable mechanism for the chamfering cutter is set. The conventional chamfering mechanism uses a hydraulic cylinder to drive the chamfering tool to expand and contract, but the structure is complex, the manufacturing cost is high,...
Claims
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IPC IPC(8): B23B29/02
CPCB23B29/02
Inventor 张之俊
Owner ANHUI QUANCHAI ENGINE