Hole position detecting tool for oil pump connecting flange
A technology for connecting flanges and oil pumps, which is applied in the field of hole position inspection tools for connecting flanges of oil pumps, can solve the problems of poor side wall finish, time-consuming, tearing strips and bright strips, etc., and achieves convenient operation, simple structure, and detection. Accurate results
Active Publication Date: 2014-12-03
长城汽车股份有限公司平湖分公司
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Problems solved by technology
However, this method does not use the central hole as the detection benchmark. Although the measured mutual positions of the various holes are qualified, it does not mean that the distribution center of these holes coincides with the central axis of the central hole, so the oil pump connection method cannot be realized. Detection of blue holes
At the same time, the center hole is made by stamping method, the side wall finish is poor, and there may be tear bands and bright bands, and its central axis cannot be directly used as a test benchmark with conventional testing tools
At the same time, it is very time-consuming to use expensive equipment such as a three-coordinate measuring instrument for detection, which is not conducive to online detection
Method used
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[0018] Such as Figure 2 to Figure 3 The shown oil pump connection flange hole position inspection tool is used for figure 1 Inspection of oil pump connection flange 1 shown. Depend on figure 1 As shown, the center of the oil pump connecting flange 1 is a through central hole 2, and the end surface is provided with eight threaded holes and two light holes 4 distributed along the central axis of the central hole 2, and the detection of the threaded holes, It can be transformed into the hole position detection of the threaded bottom hole 3 before thread tapping.
[0019] Such as figure 2 , image 3 As shown, the oil pump connection flange hole position inspection tool of this embodiment includes a base 7 with a circular end face, and a positioning hole 10 located in the center on the base 7, so that the base 7 and the positioning hole 10 are integrated form a circular shape. The upper surface of the base 7 is a plane structure, which is referred to as a bearing plane 11 f...
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The invention relates to a detecting tool, and particularly relates to a hole position detecting tool for an oil pump connecting flange. The hole position detecting tool comprises a base (7) of a screw thread bottom hole detecting hole (5) and an unthreaded hole detecting hole (6), a screw thread bottom hole detecting pin (8), and an unthreaded hole detecting pin (9), and a positioning hole (10) disposed on the base (7), the hole position detecting tool also comprises a central positioning shaft (14) provided with a reference part (12) and a positioning part (13), when the reference part (12) goes through the central hole (2) of the oil pump connecting flange (1) on a bearing plane (11) and is tightly inserted in a positioning hole (10), the positioning part (13) is inserted in the central hole (2) so that the central line of the central hole (2) of the oil pump connecting flange (1) coincides with the central line of the unthreaded hole detecting hole (6) in a circumferential distribution. Via the above scheme, position detection of the unthreaded hole and screw thread hole of the oil pump connecting flange is realized, and detection result is accurate.
Description
technical field [0001] The invention relates to a checker, in particular to a checker for the hole position of the oil pump connection flange of the automobile fuel tank and the oil pump for qualified detection. Background technique [0002] At present, the oil pump and the oil tank that supply oil to the automobile engine are usually connected by the oil pump connecting flange. In order to ensure the reliability of the connection, the manufacturing precision of the oil pump connecting flange has high requirements. In the structure of the connecting flange of the oil pump, there is a through central hole on the end surface, and a plurality of threaded holes and light holes are distributed around the central axis of the central hole. The positions of these threaded holes and light holes are usually centered on the center One end face of the hole and the flange is used as the design basis, which has high position accuracy requirements and must be detected during the manufactur...
Claims
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IPC IPC(8): G01B5/00
Inventor 亢彦海周艳辉曹玉东宇文小朋庄丽华
Owner 长城汽车股份有限公司平湖分公司