A kind of motorcycle engine rocker arm bracket cubing
Technical field
The utility model relates to a kind of cubing, especially a kind of motorcycle engine rocker arm bracket cubing.
Background technology
Rocker arm bracket is that an important mechanism in the motorcycle engine, the part that is mated when assembling have camshaft, rocking shaft, cylinder head etc., the projects such as eccentric throw of the eccentric throw of height, rocker shaft hole and the dowel hole of its dowel hole centre distance, rocker shaft hole centre distance, rocker shaft hole and cylinder head faying face, camshaft hole center and cylinder head firing chamber all have very strict requirement in assembling and use, but the detection of these projects has certain degree of difficulty.At present the detection of these projects is normally carried out measurement of coordinates with coelosphere, though can obtain more accurate measurement result, very trouble, very time-consuming, effort are also directly perceived inadequately.Sometimes also detect by some supplementary meanss, as rocker arm bracket and qualified camshaft, rocking shaft and cylinder head etc. are simulated assembling, see whether it satisfies matching requirements, this method is also pretty troublesome, and is difficult to strict control product quality.
The utility model content
The purpose of this utility model provide a kind of easy to detect, time saving and energy saving, accuracy of detection is high, cubing that can strict control motorcycle engine rocker arm bracket quality.
The technical solution of the utility model is: it comprises detects seat, two mandrels and eccentric gauge, detecting seat is made of horizonal base plate and perpendicular side plate, two mandrels are installed in respectively in two holes of described perpendicular side plate, and can endwisely slip, its size and relative position relation are corresponding with tested rocker arm bracket axis hole, eccentric gauge is fixed on the described horizonal base plate, it is half-cylindrical that the upper surface of eccentric gauge is, also be provided with register pin and rhombus pin on the described horizonal base plate, register pin and rhombus pin are corresponding to two dowel holes of rocker arm bracket bottom surface.
The size of two mandrels and relative position relation are corresponding with the rocker arm bracket axis hole in the utility model; It is half-cylindrical that the upper surface of eccentric gauge is, i.e. that part of surface configuration of cylinder head that simulation matches with rocker arm bracket, and its height is corresponding to the height of rocker arm bracket axis hole center to rocker arm bracket and engine cylinder head faying face; The size of register pin and rhombus pin and relative position relation are corresponding to two dowel holes of rocker arm bracket bottom surface, and the rhombus pin is used for accurate location.During detection; corresponding register pin and the rhombus pin that inserts on the horizonal base plate of two dowel holes of rocker arm bracket bottom surface; see whether the bottom arcwall face of rocker arm bracket is close to the half-cylindrical upper surface of eccentric gauge; and whether the base plane of observing rocker arm bracket be close to the horizonal base plate that detects seat, thereby detect rocker arm bracket and whether the cylinder head mating surface meets the demands; Two mandrels that slide see that whether two mandrels can pass the rocker arm bracket axis hole smoothly, judge in view of the above whether rocker arm bracket axis hole size and centre distance meet the demands.The test items such as centre distance of eccentric throw, engine cam axis hole center and cylinder head firing chamber by above two dowel hole centre distance, rocker arm bracket axis hole and two dowel holes that also can comprehensively judge the rocker arm bracket bottom surface.
The beneficial effects of the utility model are: make the detection of motorcycle engine rocker arm bracket accurate more, quick, easy to operate, the disposable comprehensive detection of a plurality of projects is intact, can the strict quality of controlling product.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
What double dot dash line was represented among the figure is detected rocker arm bracket outline.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model is by detecting seat 1, mandrel 2, mandrel 3, screw 4, eccentric gauge 5, register pin 6 and rhombus pin 7 are formed, detecting seat 1 is made of horizonal base plate 1b and perpendicular side plate 1a, two mandrels 2,3 are installed in respectively in two holes of described perpendicular side plate 1a, and can endwisely slip, its size and relative position relation are corresponding with tested rocker arm bracket axis hole, eccentric gauge 5 is fixed on the described horizonal base plate 1b, it is half-cylindrical that the upper surface of eccentric gauge 5 is, also be provided with register pin 6 and rhombus pin 7 on the described horizonal base plate 1b, register pin 6 and rhombus pin 7 are corresponding to two dowel holes of rocker arm bracket bottom surface, and rhombus pin 7 makes the location more accurate.
Described as can be seen from Figure 2 detection seat 1 is " " shape, the middle part of eccentric gauge 5 is recessed to form horizontal cut 5a downwards, the bottom of horizontal cut 5a has bar hole 8, two screws 4 pass this bar hole 8 and eccentric gauge 5 are fixed on the horizonal base plate 1b that detects seat 1, eccentric gauge 5 can be adjusted by bar hole 8, to adapt to the detection of different model engine rocker seat.
During detection, on (its signal profile is represented in two-dot chain line among the figure) two dowel holes corresponding insertion register pin 6 and rhombus pin 7 with engine rocker seat bottom surface, see whether the bottom arcwall face of rocker arm bracket is close to the half-cylindrical upper surface of eccentric gauge 5, and whether the base plane of observing rocker arm bracket be close to the horizonal base plate 1b that detects seat 1, thereby detect rocker arm bracket and whether the cylinder head mating surface meets the demands; Two mandrels 2,3 that slide see that whether two mandrels 2,3 can pass the rocker arm bracket axis hole smoothly, judge in view of the above whether rocker arm bracket axis hole size and centre distance meet the demands.The test items such as centre distance of eccentric throw, engine cam axis hole center and cylinder head firing chamber by above two dowel hole centre distance, rocker arm bracket axis hole and two dowel holes that also can comprehensively judge the rocker arm bracket bottom surface.