High-precision machining positioning device
A high-precision machining and positioning device technology, applied in positioning devices, metal processing equipment, metal processing mechanical parts, etc., can solve the problems of difficult to fit without clearance, large positioning errors of parts, affecting the positioning accuracy of parts, etc., to reduce the position The effect of size rejection rate
Active Publication Date: 2017-09-22
鹰普航空科技有限公司
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Problems solved by technology
Since the holes matching the parts and the two positioning pins have tolerances, it is difficult to achieve a gap-free fit between the cylindrical pins, diamond pins and the positioning holes on the parts
Therefore, after the parts are positioned by one side and two pins, there will still be a large positioning error in the parts; in addition, because a lot of iron filings will be produced during processing, these iron filings will affect the positioning accuracy of the parts on the positioning reference plane. These problems propose a fast positioning device for high precision machining
Method used
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Embodiment Construction
[0017] The present invention will be further described below in conjunction with specific drawings.
[0018] Such as Figure 1 to Figure 6 As shown: the high-precision machining positioning device includes a reference positioning plane 1, a pull rod 2, an expansion pin body 3, an upper positioning plate 4, a fixing screw 5 for the center of rotation, a positioning sleeve fixing pin 6, a power cylinder 7, and a middle support plate 8 , Installation side plate 9, vertical support plate 10, positioning adjustment screw 11, lower support plate 12, lock nut 13, fixing screw 14, expansion groove 15, pressure sensor threaded hole 16, pressure sensor body 17, pressure adjustment screw 18, Alarm red light 19, position detector 20, side positioning boss 21 etc.
[0019] Such as figure 1 , figure 2 Shown, the present invention comprises lower support plate 12, and middle support plate 8 is set on lower support plate 12, and vertical support plate 10 is installed at middle support pla...
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The invention relates to a positioning device for high-precision machining. The device comprises a lower supporting plate, wherein a middle supporting plate is arranged on the lower supporting plate, vertical supporting plates are installed at the two ends of the middle supporting plate, and an upper positioning plate is installed at the upper ends of the vertical supporting plates. The device is characterized in that two expansion pins are arranged on the upper positioning plate, each expansion pin comprises an expansion pin body and a pull rod, the inner surface of each expansion pin body is an internal conical surface, the outer surface of each pull rod is an external conical surface matched with the corresponding internal conical surface, expansion grooves are formed in each expansion pin body at equal intervals, and the lower end of each pull rod is connected with the power output end of a power cylinder; a pressure sensor is arranged on the inner side of each expansion pin and comprises an alarm red light and two pressure sensor bodies, each pressure sensor body is arranged in a pressure sensor screw hole, the vertical position of each pressure sensor body in the corresponding pressure sensor screw hole is adjustable, and a pressure adjusting screw is arranged at the lower end of each pressure sensor. By the adoption of the device, high-precision and quick positioning and clamping can be achieved, and repeated positioning accuracy can be effectively improved.
Description
technical field [0001] The invention relates to a high-precision processing and positioning device, in particular to a high-precision processing and positioning device for processing parts in the machinery industry. Background technique [0002] When the machining center processes mechanical parts, most of the machined parts need to be precisely processed and quickly positioned. Two locating pins in the one side two pin mode that adopts at present, one is a cylindrical pin, and the other is a rhombic pin. The principle is to use the first pin plus a positioning surface to limit 5 degrees of freedom, and only one degree of freedom to rotate around the pin is not limited. If the second pin is still a round pin, the distance between the two pins is fixed, and there are more restrictions. The degree of freedom in the direction of the connection of two pins at a time forms over-positioning, so the use of diamond-shaped pins only limits the degree of freedom in angular rotation, ...
Claims
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IPC IPC(8): B23Q3/08
CPCB23Q3/08B23Q3/082
Inventor 马鸿杰朱力微庄绪雷韩洲许晓芳
Owner 鹰普航空科技有限公司