CN201407971Y

CN201407971Y - Coaxiality caliper

Info

Publication number: CN201407971Y
Application number: CN2009201253365U
Authority: CN
Inventors: 李仁端
Original assignee: China Aviation Industry Standard Parts Manufacturing Co Ltd
Current assignee: China Aviation Industry Standard Parts Manufacturing Co Ltd
Priority date: 2009-04-08
Filing date: 2009-04-08
Publication date: 2010-02-17
Anticipated expiration: 2019-04-08

Abstract

The utility model provides a coaxiality vernier caliper with multifunctional measurement. The coaxiality vernier caliper comprises an internal measurement claw pair (1), an external measurement claw pair (2), a fastening bolt (3), a vernier (4), a ruler frame (5), and a depth gauge rod (6). The coaxiality vernier caliper mainly adopts the structural improvements that scales used for measuring thecoaxiality and the symmetry degree of a product are formed on the same end surfaces of the large claw and the small claw of the external measurement claw pair (2); a groove is formed on the large clawof the external measurement claw pair (2); the width of steps at the lower part and the upper part of the groove is c; the depth of the groove is b, and the width thereof is a; the measurement part of the small claw of the external measurement claw pair adopts a trapezoid structure; a measuring head is positioned at the bottom of the trapezoid; the height of a measuring plane is E, and the widththereof is F; when the height of the measuring plane E is large, and the width thereof F is small, the coaxiality vernier caliper is used for measuring the coaxiality of the inner hole and the excircle of a part; and when the height of the measuring plane E is small, and the width thereof F is large, the coaxiality vernier caliper is used for measuring the coaxiality of the excircle and the excircle groove of a part.

Description

Coaxiality caliper

Technical field

The utility model relates to a kind of multifunctional measuring tool, particularly relates to a kind of slide calliper rule with right alignment and symmetry measurement.

Background technology

Since securing member was produced, in order to guarantee its steady quality, people had just invented multiple measurement measurer.These measurers are to guarantee one of securing member quality conditio sune qua non, as micrometer inside caliper, outside micrometer, vernier caliper, dial gauge etc.Because the function of common calliper on measuring is limited, especially very difficult on measurement right alignment and symmetry, old friends can only carry out on large-scale, more professional surveying instrument, and are time-consuming.In producing at the scene as hot pier worker when the right alignment of testing product, because the on-the-spot instrument that does not have to measure specially right alignment in workshop, so adopt the method for measuring indirectly, but these method measuring accuracy that adopt are poor, error is big, and also may there be certain difference in the result of reading when everyone measured, and the measurement easily and efficiently that realizes the product right alignment in therefore producing at the scene is one and remains to be dealt with problems.

Therefore, how the right alignment of convenient, fast measurement products is a difficult point in securing member is measured, and in order to solve this difficult problem, realizes accurately, the right alignment of measurement standard spare easily and efficiently.The utility model---coaxiality caliper is transformed on the common calliper basis and is formed, increased new function by transformation, it not only can measure accessory size as common calliper, can also be used for measuring the function that the common slide calliper rule such as right alignment, symmetry of part do not have, be very easy to workman and checker and measure right alignment, symmetry of part etc., for it provides a survey instrument easily and efficiently.

The utility model content

The utility model is by improving on the basis of common calliper and increasing, make it increase measure functional, thereby can be used to measure the right alignment and the symmetry of securing members such as Philips screw and six side's screws, and the while self has the function of common calliper, in the measurement of use that can be convenient and reliable multiple functions such as right alignment of product in machining, thereby improved the precision of the measurements such as right alignment of product in the machining greatly.

The technical solution of the utility model: a kind of right alignment vernier caliper that has multifunctional measuring, it comprises inner measuring jaw pair (1), outer measuring jaw pair (2), trip bolt (3), vernier scale (4), chi frame (5) and pit gauge bar (6) (see figure 1).Its architecture advances is measuring jaw pair (2) outside mainly, the same end face of the large and small pawl of measuring jaw pair (2) is marked with the scale of measurement products right alignment and symmetry outside, the big pawl of outer measuring jaw pair (2) has groove, the bottom of groove and the step width on top are c, and groove depth is b, and width is a, this groove can be (see figure 4)s such as the rectangular-shaped (see figure 2) of step, step semicircle arcuation (see figure 3), step triangular shape, also can not slot, directly stretch out a hook in the bottom, the length of hook is the c (see figure 5).The measure portion of the secondary unguiculus of outer measuring jaw is trapezoidal, and measuring head is positioned at trapezoidal bottom, and measuring the face height is E, and measuring the face width degree is F, when the face of measurement height E size is big and measure face width degree F size hour, is used to measure the endoporus and the outer circles (see figure 6) of part; Face height E size is little and measure face width degree F size when big when measuring, and is used to measure the right alignment (see figure 7) of cylindrical and the peripheral groove and the cylindrical of part.

During use, the measurement face of the end of tested part head being close to the big pawl of outer measuring jaw pair (2), the head of tested part is positioned at big pawl groove, and the measuring head of outer measuring jaw pair (2) unguiculus is put in the center pit of tested part head, promptly can read the right alignment and the symmetry size of tested part.

Compare with existing technology, because measuring jaw pair (2) is marked with scale outside, realization is to the measurement of the common size of part, and can also right alignment convenient, fast, measurement products exactly, symmetry, solved medium and small specification standards part product right alignment and symmetry effectively and measured difficult problem.Compare the instrument of special-purpose measurement right alignment, this right alignment vernier caliper can be realized the same function, and slide calliper rule are simple in structure, and low cost of manufacture is easy to use, easily-learned easily mastered.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 has the structural representation of the rectangular-shaped groove of step for the big pawl of the outer measuring jaw pair (2) of the utility model;

Fig. 3 has the structural representation of step semicircle arcuation groove for the big pawl of the outer measuring jaw pair (2) of the utility model;

Fig. 4 has the structural representation of step triangular shape groove for the big pawl of the outer measuring jaw pair (2) of the utility model;

Fig. 5 stretches out the structural representation of a hook for the big pawl of the outer measuring jaw pair (2) of the utility model bottom;

Fig. 6 is the structural representation of outer measuring jaw pair (2) unguiculus of the utility model;

Fig. 7 is another structural representation of outer measuring jaw pair (2) unguiculus of the utility model;

Fig. 8 measures the structural representation of securing member symmetry for the utility model;

Fig. 9 measures the structural representation of securing member symmetry for the utility model;

Figure 10 measures the structural representation of securing member symmetry for the utility model;

Figure 11 measures the structural representation of securing member symmetry for the utility model;

Embodiment

Embodiment 1:

The big pawl of outer measuring jaw pair (2) of measurement right alignment vernier caliper described in the utility model is designed to have the rectangular-shaped groove of step, the bottom of groove and the step width c on top are 8mm, groove depth b is 15mm, width a is 25mm, it is trapezoidal that outer measuring jaw pair (2) unguiculus of measurement right alignment vernier caliper is designed to measure portion, measuring head is the taper that is positioned at trapezoidal bottom, measurement face height E is 20mm, measuring face width degree F is 5mm, puts on the scale of measurement products right alignment and symmetry outside on the same end face of the large and small pawl of measuring jaw pair (2).

As shown in Figure 8, when the right alignment of measurement standard spare product, the end of fastener head is close to the big pawl of outer measuring jaw pair (2), fastener head is positioned at big pawl groove, it is interior to the four sides dimensional measurement that the measuring head of unguiculus enters cross recess, and the reading of measuring is exactly the right alignment value of this product cross recess and bar portion.

As shown in Figure 9, when the symmetry of measurement standard spare product, the end of fastener head is close to the big pawl of outer measuring jaw pair (2), and fastener head is positioned at big pawl groove, the measuring head of unguiculus is close to the fastener products head, and repeatedly turn Fastener is seen the size symmetry of the large and small pawl of outer measuring jaw (2).If inequality, then can calculate the symmetry difference from reader.

As shown in figure 10, fastener head is placed on centre position, outer measuring jaw (2) scale below, head is close to the big pawl of outer measuring jaw (2), and bar portion one surveys with outer measuring jaw (2) unguiculus to be close to.Rotate this fastener products, observe the scale on the outer measuring jaw (2), see whether its size changes, and be changed to the symmetry of this product and six square toes portions.

Embodiment 2:

The big pawl of outer measuring jaw pair (2) of measurement right alignment vernier caliper described in the utility model is designed to have the rectangular-shaped groove of step, the bottom of groove and the step width c on top are 8mm, groove depth b is 10mm, width a is 15mm, it is trapezoidal that outer measuring jaw pair (2) unguiculus of measurement right alignment vernier caliper is designed to measure portion, measuring head is the hook-type that is positioned at trapezoidal bottom, measurement face height E is 4mm, measuring face width degree F is 5mm, puts on the scale of measurement products right alignment and symmetry outside on the same end face of the large and small pawl of measuring jaw pair (2).

As shown in figure 11, when measuring the right alignment of double end series products, the end of fastener head is close to the big pawl of outer measuring jaw pair (2), fastener head is positioned at big pawl groove, the measuring head of unguiculus is close to fastener products head upper surface, the measuring head of unguiculus can enter the tested part other end or groove face is measured, and the reading of measuring is the double end right alignment value of double end series products.

Claims

1, a kind of right alignment vernier caliper that has multifunctional measuring, it is characterized in that: the same end face of the large and small pawl of measuring jaw pair (2) is marked with the scale of measurement products right alignment and symmetry outside, the big pawl of outer measuring jaw pair (2) has groove, the bottom of groove and the step width on top are c, and groove depth is b, and width is a, the measure portion of the secondary unguiculus of outer measuring jaw is trapezoidal, measuring head is positioned at trapezoidal bottom, and measuring the face height is E, and measuring the face width degree is F.

2, the right alignment vernier caliper that has multifunctional measuring according to claim 1 is characterized in that: the groove on the big pawl of outer measuring jaw pair (2) is step-like, step semicircle arcuation, triangular shape.

3, the right alignment vernier caliper that has multifunctional measuring according to claim 1 is characterized in that: the big pawl of outer measuring jaw pair (2) can not slotted, and directly stretches out a hook in the bottom, and the length of hook is c.