Background technology
In manufacturing and designing product cubing process, need to consider the application of measuring method and survey instrument simultaneously.More with the measurer kind that the method for simulated block inspection volume production product flush relates to, as ruler and clearance gauge combination, pit gauge, slide calliper rule, Japanese section difference rule or the like, there is a common problem in they: unreliable problem in the location of measurer on simulated block and sensing point be difficult to control problem.
The utility model content
Technical problem to be solved in the utility model is: at the problem of above-mentioned existence, a kind of flexible operation is provided and measures section difference chi reliably.
The utility model is achieved in that
A kind of section poor chi comprises work rest blade and slip chi, and the bottom of described work rest blade is provided with locating piece; The top of described slip chi is provided with probe.
Described probe is fixed in the top of described slip chi by guide arm.
Also comprise and described locating piece school that be complementary, that have scale zero piece.
The described locating piece end face vertical with described work rest blade length direction is provided with perpendicular to this surperficial locating convex block.
The described locating piece end face vertical with described work rest blade length direction is provided with three plane of orientations that are positioned at same surface level.
The surface that described school zero piece and described locating piece are complementary is provided with groove.
Described slip chi is digital display type or cursor type slip chi.
The beneficial effects of the utility model:
In the application of reality, use leading portion difference chi on zero piece of school, to calibrate zero-bit, on zero piece of school, directly adjust the relative measurement position with period difference chi probe.Both solve school zero problem, solved the control problem of sensing point again.Use three plane of orientations of the locating piece of period difference chi to stand on the cubing simulated block, the locating convex block of locating piece catches on the simulated block side, retrains the degree of freedom of tested direction.Thereby solve the orientation problem of measurer.Probe contact test product can obtain the actual deviation value of product.Therefore of the present utility model section poor chi accurate positioning on the cubing simulated block, measurement data acquisition is simple and reliable.
Embodiment
With reference to the accompanying drawings 1 and 2, of the present utility model section poor chi is on the basis of common digital display type section difference chi or cursor type section difference chi, work rest blade 5 bottoms at section difference chi are provided with locating piece 1, locating surface is everywhere arranged on the locating piece 1, three plane of orientation 6 control survey directions, the relative position of another locating convex block 7 control section difference chis itself and probe; Side at section difference chi slip chi 4 is provided with probe guide arm 3, and probe 2 is assemblied on the probe guide arm 3 fixing with gib screw 8.The annex that has school zero piece 9 sections of the being difference chi of groove.