CN200952934Y

CN200952934Y - Measuring auxiliary tool

Info

Publication number: CN200952934Y
Application number: CN 200620014447
Authority: CN
Inventors: 何圣均; 黄志武
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2006-08-31
Filing date: 2006-08-31
Publication date: 2007-09-26
Anticipated expiration: 2016-08-31

Abstract

The utility model discloses a measurement complementary tool for measuring the angle top angle tip location, in particular, the measurement complementary tool is arranged with a mutually perpendicular first arm and a second arm, and an edge angle tip protruding the second arm inner side surface is set in at least a perpendicular included angle between the first arm and the second arm. The top line of the edge angle tip is parallel with the inner side surfaces of the first arm and the second arm at the same time, and the perpendicular distance between the top line and the inner side surfaces of the first arm and the second arm is respectively b and e. Wherein the b and the e need to be in the first arm and the second arm planar, to make the value of the angle between the connecting line of the edge angle tip and the second arm inside upper edge, and the first arm inner side surface exceed the value of the measured angle. The measurement complementary tool has the advantages of simple structure, convenience for operation, and accurate assistance for achieving the measured value.

Description

A kind of measurement aid

Technical field

The utility model relates to a kind of measurement aid of the corner position that takes measurement of an angle, refer in particular to a kind of simple in structurely, easy to use, and can accurately assist the measurement aid that obtains measured value.

Background technology

(please refer to Fig. 1 when measuring an angled workpiece 4, be depicted as a mould slide block) time, survey the drift angle point M of its angle a2 if desired, the intersection point of two hypotenuses just, during to the distance L between the reference edge 5 of workpiece 4, obviously be difficult to measure exactly, because drift angle point M is non-observable intersection point with measuring slide calliper rule, especially after the chamfering, be difficult to especially measure exactly with measuring slide calliper rule.

At present, in the time of will measuring aforesaid distance L in the real work, the general practice is range estimation, promptly a drift angle point M who measures wedge angle range estimation alignment pieces 4 of slide calliper rule 6, the reference edge 5 of another measurement wedge angle range estimation alignment pieces 4 of slide calliper rule 6, can approximately measure its distance like this, as Fig. 2, but the distance of measuring like this is inaccurate.In addition, also can accurately measure, but need drop into an equipment with the equipment of electronic line scanner, and measuring process also not directly, not convenient.

The utility model content

At foregoing, it is a kind of easy to use, simple in structure and can accurately assist the measurement aid that obtains measured value that the purpose of this utility model promptly is to provide.

The purpose of this utility model is achieved through the following technical solutions:

The utility model provides a kind of measurement aid, especially this measurement aid is provided with the orthogonal the first arm and second arm, and at least one vertical angle of the first arm and second arm, be provided with the corner angle point of the medial surface that protrudes from second arm, the top line of corner angle point is parallel to the medial surface of this first arm and second arm simultaneously, and this top line and the first arm, the vertical range of the medial surface of second arm is respectively b, e, wherein this b and e need satisfy in this first arm and second arm plane of living in, make the value of formed angle between the medial surface of line between the inboard coboundary of this corner angle point and second arm and the first arm, must be greater than the value of measured angle.

On the above-mentioned basis, wherein:

The profile of described measurement aid is roughly L-shaped, and described the first arm has only formed a vertical angle with second arm.

The cross sectional shape of described corner angle point is the drift angle shape of an isoceles triangle shape.

The utility model is compared to prior art, its advantage is, the utility model utilizes two the orthogonal the first arms and second arm, and in the vertical angle of the first arm and second arm, be provided with vertical and protrude from the corner angle point of the second arm inner side edge, and because the corner angle point is fitted mutually with a hypotenuse on the workpiece, therefore the extended line of this hypotenuse in the work and the first arm inner side edge form a virtual intersection point, and this virtual intersection point is a drift angle cusp accurately; So, just can measure and try to achieve the distance of this drift angle point and reference edge exactly with measuring slide calliper rule.Obviously, the present invention makes simply, and simple operation is practical, the accuracy height; No matter whether drift angle becomes chamfering or unfilled corner to measure, and also can measure the workpiece of different angles; And needn't drop into extra measuring equipment again, reduced cost.

Description of drawings

In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.

Fig. 1 is the structural representation of angled workpiece in the prior art.

Fig. 2 is the structural representation when in the prior art angled workpiece being measured its drift angle point.

Fig. 3 is a kind of structural representation of measuring aid of the utility model.

Fig. 4 is a kind of structural representation of aid when the item the top of the horn of workpiece shown in subsidiary Fig. 1 of measuring of the utility model.

Embodiment

Be example explanation the utility model to be used for the automobile cover below.

Please, measure the preferential embodiment of aid for the utility model is a kind of together with reference to figure 3 and Fig. 4.The utility model is measured aid, profile is roughly L-shaped, comprise the orthogonal the first arm 1 and second arm 2, and with the first arm 1 in the same way, and vertically protrude from the corner angle point 3 of second arm, 2 medial surfaces, the top line of this corner angle point 3 is parallel to the medial surface of this first arm 1 and second arm 2 simultaneously, this corner angle point 3 is at a distance of the medial surface one fixed range b of the first arm 1 (just described corner angle point 3 is b at a distance of the vertical range to the medial surface of the first arm 1), and this corner angle point 3 is at a distance of the lateral surface one fixed range e of second arm 2; In this first arm 1 and second arm, 2 planes of living in, line between the inboard coboundary of this corner angle point 3 and second arm 2 forms a virtual line 7, shape a1 at an angle between the medial surface of this virtual line 7 and the first arm 1, this angle a1 must be greater than workpiece 4 angle a2, like this, second arm 2 just not can and workpiece 4 between produce and interfere.

As shown in Figure 5, during work, workpiece 4 is needed the medial surface of the hypotenuse applying the first arm 1 of tested angle a2, another hypotenuse of tested angle a2 and corner angle point 3 are fitted; And make the reference edge 5 of workpiece 4 parallel with second arm 2, like this, in this first arm 1 and second arm, 2 planes of living in, the extended line 8 of the hypotenuse of fitting with described corner angle point 3 on the workpiece 4 intersects a bit with the medial surface of the first arm 1, promptly is the position of the drift angle point M of tested angle a2; During measurement, measure the limit to one of slide calliper rule 6 and fit, another of slide calliper rule 6 measured reference edge 5 applyings of limit and workpiece 4 with the lateral surface of second arm 2, just can be convenient and accurately measure one apart from k.

Because a kind of aid of measuring of the utility model is provided with two constant values, i.e. distance b and be a constant coefficient apart from e, and the angle a2 of workpiece 4 also is a fixing angle value; If described corner angle point 3 is P in the distance between vertical projection point N and the drift angle point M on the first arm 1, like this, form right angle three shapes between corner angle point 3 and some N and the some M, utilized geometry to collude a strand law, can be in the hope of distance p value, that is: p=b * tg (a2-90) or p=b ÷ tg (180-a2); Try to achieve distance L value between drift angle point M and the reference edge 5, that is: L=k-e-p with mathematical way again; Like this, just can calculate the distance L between sharp M of the drift angle that records workpiece 4 and the reference edge 5 exactly.

In addition, a kind of profile of measuring aid of the utility model also can be designed to roughly be " T " font, in each vertical angle of the first arm and second arm, be equipped with vertical and protrude from the corner angle point of the second arm inner side edge, but the different angle a1 of formation between the line between the inboard coboundary of each corner angle point and second arm 2 and the inner side edge of the first arm 1 is to adapt to the workpiece 4 with different angles a2.

Claims

1. measurement aid, it is characterized in that: this measurement aid is provided with the orthogonal the first arm and second arm, and at least one vertical angle of the first arm and second arm, be provided with the corner angle point of the medial surface that protrudes from second arm, the top line of corner angle point is parallel to the medial surface of this first arm and second arm simultaneously, and this top line and the first arm, the vertical range of the medial surface of second arm is respectively b, e, wherein this b and e need satisfy in this first arm and second arm plane of living in, make the value of formed angle between the medial surface of line between the inboard coboundary of this corner angle point and second arm and the first arm, must be greater than the value of measured angle.

2. a kind of measurement aid as claimed in claim 1, it is characterized in that: the profile of described measurement aid is roughly L-shaped, and described the first arm has only formed a vertical angle with second arm.

3. a kind of measurement aid as claimed in claim 1 or 2 is characterized in that: the cross sectional shape of described corner angle point is the drift angle shape of an isoceles triangle shape.