CN204329849U

CN204329849U - Bore measuring instrument

Info

Publication number: CN204329849U
Application number: CN201520018922.5U
Authority: CN
Inventors: 孔祥华
Original assignee: Hangzhou Ya Heng Auto Parts And Components Co Ltd
Current assignee: Hangzhou Ya Heng Auto Parts And Components Co Ltd
Priority date: 2015-01-10
Filing date: 2015-01-10
Publication date: 2015-05-13
Anticipated expiration: 2025-01-10

Abstract

The utility model discloses a kind of inside diameter measurement, aim to provide a kind of special measurement aperture less, the bore measuring instrument that groove depth is more shallow, its drip irrigation device comprises measurement pedestal, measure in pedestal and be provided with drive link and clock gauge, drive link is slidably connected with measurement pedestal, linkage clock gauge rotates, measure on pedestal and be also provided with measuring mechanism, measuring mechanism comprises slippage bar and at least two fixed bars, slippage bar and fixed bar are all conflicted with measured hole inwall, slippage bar and drive link are connected, by adopting technique scheme, measuring mechanism can measurement standard aperture in advance, make zero, the slippage bar of measuring mechanism and fixed bar are set in the aperture that will measure, slippage bar and fixed bar are all conflicted with measured hole inwall, by the movement of the mobile interlock drive link of slippage bar, then be passed on clock gauge and read measurement data, the error of measured hole can be detected fast.

Description

Bore measuring instrument

Technical field

The utility model relates to surveying instrument technical field, and more particularly, it relates to a kind of bore measuring instrument.

Background technology

Utilize or three-point fix at 2, directly measure the method in aperture, also be the most frequently used bore diameter measuring method, according to accuracy class size and the population size in tested aperture, the general dimensional measuring instrument in energy gaging hole footpath can be adopted, such as vernier caliper, tool microscope, omnipotent comparator, horizontal length measuring machine, horizontal optical meter and air-gauge etc.; Also special inside diameter measurement instrument can be adopted, such as micrometer inside caliper, inside dial indicator and clock gauge, internal diameter dial gauge, electronic plug gauge and utilize the aperture amount instrument etc. of the principles such as Pneumatic optical electricity.

The classic method measuring internal diameter is that inside diameter caliper or micrometer inside caliper are measured, but run into groove depth when belonging to the measured component of the shallow degree of depth, and groove footpath is not of uniform size, (the groove footpath of general finding is between 1mm to 15mm, belonging to shallow degree of depth groove depth is between 1mm to 5mm) fortunately do not arrange measuring mechanism in groove, the traditional measurement method of foregoing description just cannot be measured, if when adopting unsuitable measurer to detect, not only be inconvenient to measure, and affect follow-up machining precision, cause product quality to decline.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is to provide the bore measuring instrument that a kind of special measurement aperture is less, groove depth is more shallow.

For achieving the above object, the utility model provides following technical scheme:

A kind of bore measuring instrument, comprise measurement pedestal, drive link and clock gauge is provided with in described measurement pedestal, described drive link is slidably connected with measurement pedestal, linkage clock gauge rotates, and described measurement pedestal is also provided with measuring mechanism, and described measuring mechanism comprises slippage bar and at least two fixed bars, described slippage bar and fixed bar are all conflicted with measured hole inwall, and described slippage bar and drive link are connected.

By adopting technique scheme, traditional survey instrument is moved by the position of drive link, interlock clock gauge rotates, the basis of traditional scheme increases measuring mechanism, measuring mechanism can measurement standard aperture in advance, make zero, the slippage bar of measuring mechanism and fixed bar are set in the aperture that will measure, slippage bar and fixed bar are all conflicted with measured hole inwall, by the movement of the mobile interlock drive link of slippage bar, then be passed on clock gauge and read measurement data, the error of measured hole can be detected fast, when the counterbore fathoming more shallow, the convenient side that abuts is measured, reduce the deviation between each measurement point when measuring, improve and measure precisely.

The utility model is set to further: described measurement pedestal is provided with gangbar, and described measurement pedestal offers the groove for gangbar movement, and described drive link comprises gauge head, and described gangbar one end is connected to gauge head, and the other end is fixedly connected with slippage bar.

By adopting technique scheme, drive link and slippage bar link into an integrated entity movement by gangbar, and while drive link motion, abut gauge head, enable clock gauge read data, this linked manner structure is simple, avoids parts too much to produce the more situation of error.

The utility model is set to further: described measurement pedestal also offers the chute for the slippage of slippage bar, and described chute is consistent with drive link direction of motion, and described drive link interlock slippage bar is at chute interior slip.

By adopting technique scheme, arranging of chute is on the one hand ensure that slippage bar can link together with drive link, be on the other hand slippage bar can in slippage time, be embedded in chute, ensure that slippage bar does not come off.

The utility model is set to further: the fixed mount of described measurement pedestal arranged outside fixed conveyor bar, is provided with the slip hole worn for drive link in described fixed mount.

By adopting technique scheme, drive link moves axially along its slip hole, prevents radial displacement, ensures its precision measured.

Accompanying drawing explanation

Fig. 1 is the structural drawing one of the utility model bore measuring instrument;

Fig. 2 is the structural drawing two of bore measuring instrument;

Fig. 3 is the structural drawing three of bore measuring instrument;

Fig. 4 is the upward view of bore measuring instrument;

Fig. 5 is the side view of bore measuring instrument.

In figure: 1, measure pedestal; 2, clock gauge; 3, drive link; 4, measuring mechanism; 5, slippage bar; 6, fixed bar; 7, groove; 8, gangbar; 9, gauge head; 10, chute; 11, fixed mount; 12, slip hole.

Embodiment

Referring to figs. 1 through Fig. 5, the utility model bore measuring instrument embodiment is described further.

A kind of bore measuring instrument, comprise and measure pedestal 1, measure pedestal 1 to arrange in rectangular parallelepiped, measure two opposites that pedestal 1 comprises length direction, with a side of connection two opposites, the wherein one side of the opposite of measurement pedestal 1 is provided with drive link 3 and clock gauge 2, and drive link 3 is slidably connected with measurement pedestal 1, and linkage clock gauge 2 rotates.

Measure on pedestal 1 and be also provided with measuring mechanism 4, measuring mechanism 4 be positioned at measure pedestal 1 clock gauge 2 side dorsad face on, measuring mechanism 4 comprises a slippage bar 5 and two fixed bars 6, and slippage bar 5 and fixed bar 6 are all conflicted with measured hole inwall, and slippage bar 5 and drive link 3 are connected.

Measure on pedestal 1 and be provided with gangbar 8, measure pedestal 1 and offer the groove 7 supplying gangbar 8 movement, gangbar 8 is in L-type, and one end extends into measurement pedestal 1 inside and is fixedly connected with slippage bar 5, drive link 3 comprises gauge head 9, and the other end of gangbar 8L type is connected to gauge head 9.

Adopt technique scheme, can the standard in testing product aperture fast.

The first step, chooses the product having standard in advance, is measured the pore size of standard in advance by said method, and the concentric circles that now slippage bar 5 and fixed bar 6 are formed is standard aperture.

Second step, makes zero clock gauge 2.

3rd, be inserted in the hole of the measurement of needs, the concentric circles formed when slippage bar 5 and fixed bar 6 can not be inserted in, illustrate and need the aperture measured to be less than standard aperture, the concentric circles formed when slippage bar 5 and fixed bar 6 can be inserted in, and illustrates and needs the aperture measured to be greater than standard aperture, now drag outside gangbar 8, gangbar 8 one end abuts gauge head 9, then on clock gauge 2, reads phase difference data, then qualified in margin tolerance.

In order to ensure that slippage bar 5 when slippage, can be embedded in chute 10 and do not come off, measure pedestal 1 and also offer chute 10 for the slippage of slippage bar 5, chute 10 is consistent with drive link 3 direction of motion, and drive link 3 links slippage bar 5 at chute 10 interior slip.

In order to drive link 3 moves axially along its slip hole 12, there is not radial displacement, measure the fixed mount 11 that pedestal 1 arranged outside has fixed conveyor bar 3, in fixed mount 11, be provided with the slip hole 12 worn for drive link 3.

Below be only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a bore measuring instrument, comprise measurement pedestal, drive link and clock gauge is provided with in described measurement pedestal, described drive link is slidably connected with measurement pedestal, linkage clock gauge rotates, and it is characterized in that: described measurement pedestal is also provided with measuring mechanism, described measuring mechanism comprises slippage bar and at least two fixed bars, described slippage bar and fixed bar are all conflicted with measured hole inwall, and described slippage bar and drive link are connected.

2. bore measuring instrument according to claim 1, it is characterized in that: described measurement pedestal is provided with gangbar, described measurement pedestal offers the groove for gangbar movement, and described drive link comprises gauge head, described gangbar one end is connected to gauge head, and the other end is fixedly connected with slippage bar.

3. bore measuring instrument according to claim 2, is characterized in that: described measurement pedestal also offers the chute for the slippage of slippage bar, and described chute is arranged along drive link direction of motion, and described drive link interlock slippage bar is at chute interior slip.

4. bore measuring instrument according to claim 1, is characterized in that: described measurement pedestal arranged outside has fixed mount, is provided with the slip hole for the slippage of drive link guiding in described fixed mount.