CN101858716B

CN101858716B - Coaxiality caliper

Info

Publication number: CN101858716B
Application number: CN2009101025062A
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: 2012-07-18
Anticipated expiration: 2029-04-08
Also published as: CN101858716A

Abstract

The invention provides a coaxiality vernier caliper with multifunctional measurement, which comprises an inner measure-hand pair (1), an outer measure-hand pair (2), a fastening screw (3), a vernier (4), a caliper frame (5) and a depth caliper rod (6). The structure improvement is in relation to the outer measure-hand pair (2) mainly; scales for measuring coaxiality and symmetry of products are marked on the same end surface of the big hand and the small hand of the outer measure-hand pair (2); the big hand of the outer measure-hand pair (2) is provided with a groove; the steps width at the low part and the upper part of the groove is c, the depth of the groove is b, and the width of the groove is a; the small hand of the outer measure-hand pair is used for measuring a trapezoidal section; a measuring head is positioned at the bottom of the trapezoidal section; the height of a measuring surface is E, and the width of the measuring surface is F; when the height E of the measuring surface has a big size and the width F of the measuring surface has a small size, the caliper is used for measuring the coaxiality of the inner hole and the excircle of a part; and when the height E of the measuring surface has a small size and the width F of the measuring surface has a large size, the caliper is used for measuring the excircle of the part and the coaxiality of an excircle groove and the excircle.

Description

Coaxiality caliper

Technical field

The present invention relates to a kind of multifunctional measuring tool, particularly relate 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, do like micrometer inside caliper, external diameter and divide chi, 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 possibly there was 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 present invention---coaxiality caliper is transformed on the common calliper basis and is formed; Increased new function through 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.

Summary of the invention

The present invention is through 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 self have simultaneously a 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 that the right alignment etc. of product in the machining is measured greatly.

Technical scheme of the present invention: a kind of right alignment vernier caliper that has multifunctional measuring, it comprises inner measuring jaw secondary (1), outer measuring jaw secondary (2), trip bolt (3), vernier scale (4), chi frame (5) and pit gauge bar (6) (see figure 1).Its architecture advances is measuring jaw secondary (2) outside mainly, and the same end face of secondary (2) the large and small pawl of measuring jaw is marked with the scale of measurement products right alignment and symmetry outside, and 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 secondary (2); The head of tested part is positioned at big pawl groove, and the measuring head of secondary (2) unguiculus of outer measuring jaw 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 secondary (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 invention;

Fig. 2 has the structural representation of the rectangular-shaped groove of step for the big pawl of the outer measuring jaw of the present invention secondary (2);

Fig. 3 has the structural representation of step semicircle arcuation groove for the big pawl of the outer measuring jaw of the present invention secondary (2);

Fig. 4 has the structural representation of step triangular shape groove for the big pawl of the outer measuring jaw of the present invention secondary (2);

Fig. 5 stretches out the structural representation of a hook for the big pawl of the outer measuring jaw of the present invention secondary (2) bottom;

Fig. 6 is the structural representation of secondary (2) unguiculus of the outer measuring jaw of the present invention;

Fig. 7 is another structural representation of secondary (2) unguiculus of the outer measuring jaw of the present invention;

Fig. 8 measures the structural representation of securing member symmetry for the present invention;

Fig. 9 measures the structural representation of securing member symmetry for the present invention;

Figure 10 measures the structural representation of securing member symmetry for the present invention;

Figure 11 measures the structural representation of securing member symmetry for the present invention;

Embodiment

Embodiment 1:

The big pawl of outer measuring jaw secondary (2) of measurement right alignment vernier caliper according to the invention 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, and width a is 25mm, and it is trapezoidal that secondary (2) unguiculus of outer measuring jaw 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, and 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 secondary (2) the large and small pawl of measuring jaw.

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 secondary (2); Fastener head is positioned at big pawl groove, and it is interior to the four sides dimensional measurement that the measuring head of unguiculus gets into 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 secondary (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.

Shown in figure 10, be placed on centre position, outer measuring jaw (2) scale below to fastener head, 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 secondary (2) of measurement right alignment vernier caliper according to the invention 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, and width a is 15mm, and it is trapezoidal that secondary (2) unguiculus of outer measuring jaw 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, and 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 secondary (2) the large and small pawl of measuring jaw.

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 secondary (2), and fastener head is positioned at big pawl groove, and the measuring head of unguiculus is close to fastener products head upper surface; The measuring head of unguiculus can get into 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. right alignment vernier caliper that has multifunctional measuring is characterized in that: the same end face of secondary (2) the large and small pawl of measuring jaw is marked with the scale of measurement products right alignment and symmetry outside, and 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 secondary (2) is step-like, step semicircle arcuation or triangular shape.