CN2130254Y

CN2130254Y - Two-purpose vernier caliper

Info

Publication number: CN2130254Y
Application number: CN 92231391
Authority: CN
Inventors: 杨树奎
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-08-29
Filing date: 1992-08-29
Publication date: 1993-04-21
Anticipated expiration: 2002-08-29

Abstract

The utility model relates to a two-purpose vernier caliper which can serve as the scribing compass a fixed square sleeve and a needle-shaped compass leg are additionally arranged on and fixed to the measuring feet of a main scale and an auxiliary scale via screws; a handle is additionally installed at the top end of the auxiliary scale; the handle is fixed via the screws. The range of measurement of the scribing compass can be exactly ascertained by means of the vernier scale of the caliper. The accuracy and the work efficiency is noticeably raised.

Description

Two-purpose vernier caliper

The utility model relates to a kind of dual-purpose vernier caliper, belongs to the technical field of mechanical measurer.

Planing is the instrument of using always; be used for drawing circle; the five equilibrium line segment; circular arc or the like; existing shortcoming of planing is that dimensional accuracy is low; always on steel ruler, measure length dimension because draw bowlder with the rule pin; mainly be visual method, just be difficult to accurate tolerance, and the rule pin is with wearing and tearing for a long time for the size that has decimal; often want place under repair; during reconditioning, regular meeting damages its shape on emery wheel, the center of rule tiptoe portion usually with workpiece on the centre punching form fit bad; draw the skew of bowlder center of circle regular meeting; produce very mistake, levelling rule pin is also very time-consuming apart from size in addition, influences work efficiency; the vernier caliper that uses is just simple as measurer at present, function singleness.

The purpose of this utility model is that a kind of dual-purpose vernier caliper will be provided, and it can overcome above-mentioned shortcoming, and the function that slide calliper rule is had concurrently plan and improved rule pin shape had both improved the precision of planing, and increased work efficiency again.

Of the present utility model is to realize like this, be exactly that the survey pin of the main scale of vernier caliper and secondary chi respectively adds and adorns a pin type or tooth shape rule pin partially, and fixed with screw and fixing side cover, make the rule point of rule pin just in time consistent with the center line that main pair chi is surveyed the pin surface, install a handle additional in secondary chi upper end in addition, be fixed on above the secondary chi with screw, justify or the respective length size of circular arc or line segment as long as the moving sets chi utilizes the vernier graduation of slide calliper rule just can determine that desire is drawn.

The front view of the dual-purpose vernier caliper of Fig. 1

The side view of the dual-purpose vernier caliper of Fig. 2

The synoptic diagram of the fixing side of Fig. 3 cover

The vertical view of the fixing side of Fig. 4 cover

The synoptic diagram of Fig. 5 handle

The inclined to one side sword type rule of Fig. 6 pin synoptic diagram

The inclined to one side sword type rule of Fig. 9 pin installation diagram

Now in conjunction with the accompanying drawings the structure of dual-purpose vernier caliper is described in further detail:

By Fig. 1, vernier caliper is made up of main scale (1), a pair chi (2), pin type rule pin (3), (4) are housed on its survey pin (6), (7), rule pin (3), (4) and survey pin (6), (7) all are contained in fixing side's cover (4), and fixing with screw (8), handle (5) is connected with the top of secondary chi (2).

Fig. 2 is the side view of dual-purpose vernier caliper, handle (5) upper end has annular knurl, its underpart is a type, just in time match with secondary chi (2) shape, use screw (10) fixedly handle (5), secondary chi (2) again, main scale (1) one side fluted (11), screw (10) are just in time withstood groove (11) and secondary chi (2).

Fig. 3 is the synoptic diagram of fixing side cover, Fig. 4 is the vertical view of Fig. 3, and fixing side's cover (9) is a rectangular parallelepiped, and there is asymmetric rectangular slot (12) at the middle part, survey pin (6), (7) of can pack rule pin (3), (4) and master in the groove (12) into, paying chi, a side is fixing with screw (8).

Fig. 5 is the synoptic diagram of handle (5), and the upper end of handle (5) is the right cylinder (13) of an annular knurl, and the middle part is square part, and the bottom is a shape part (14), and porose (15).

Fig. 6 is inclined to one side tooth shape rule pin synoptic diagram, and rule pin (16) are long square bars, and its end makes tiltedly pointed.

Fig. 7 is the installation diagram of inclined to one side tooth shape rule pin, and the pin type rule pin (4) among Fig. 1 can change the inclined to one side tooth shape rule pin among Fig. 7 into, but the rule pin of main scale part is still with pin type rule pin (3).

The vernier caliper basic configuration is constant, only adds dress pin type rule pin (3), (4) or tooth shape rule pin (16) partially surveying the foot section, and fixes with screw and fixing side's cover (9), adds at secondary chi top and adorns a handle.Just can make slide calliper rule have the function of planing concurrently, be weight reduction, the column part of handle can be a hollow body.

Aciculiform or inclined to one side tooth shape rule pin, it advises sharp center line is consistent with rule pin contact side upper thread, thus utilize the secondary chi of main scale to have the slide calliper rule performance, just guaranteed to the dimensional accuracy of planing.

In order to improve precision and to increase its life-span, the rule pin can be made through quenching with high speed steel material, also can be at most advanced and sophisticated soldering wimet, and the rule pin shown in Fig. 1 is applicable to draws five equilibrium line segment and angle.

Compared with prior art, dual-purpose slide measure has following advantage:

1, the function that has slide measure and plan.

2, when planing, scale error can be in 0.02～0.05 millimeter, and therefore common error of planing even can surpass 0.2 millimeter significantly improve precision.

Needn't use the rule pin to go to measure size when 3, operating,, improve work efficiency as long as the secondary chi of mobile slide calliper rule is just passable.

4, simple in structure, be easy to carry.

Claims

1, a kind of dual-purpose vernier caliper, it is characterized in that the main scale (1) of slide calliper rule and pay on the survey pin (6), (7) of chi (2) rule pin (3), (4) and fixing side being housed respectively and overlapping (9), and fixing with screw (8), handle (5) is contained in the upper end of secondary chi (2) and fixes with screw (10).

2, vernier caliper according to claim 1 is characterized in that handle (5) upper end is the right cylinder (15) of annular knurl, and the middle part is square part, and the bottom is shape (14) and porose (15).

3, vernier caliper according to claim 1 is characterized in that fixing side's cover (9) is a rectangular parallelepiped, and there is asymmetric rectangular slot (12) at the middle part, and a side is equipped with screw (8).