Utility model content
In view of the above situation, it is necessary to a kind of hole measuring device that the internal diameter convenient for device to hole measures is provided, on solving
A kind of hole measuring device is measured for the internal diameter to the metering-orifice to be measured on workpiece, and the hole measuring device includes surveying
Length bar and calibrated bolck, the measuring stick and calibrated bolck is mutually indepedent and mating setting, the measuring stick include display unit and
At least one measurement portion, at least one described measurement portion are set to one end of the display unit, and the display unit is equipped at least one
A scale area, the scale area are set on the side of the display unit, along the length side of the measuring stick in the scale area
To setting series of inner diameter scale value, the measurement portion includes measuring surface, and the measuring surface is that the relatively described measurement portion central axis inclines
The outer diameter of oblique annular slope, the measuring surface is gradually increased along close to the display unit direction, and the calibrated bolck side opens up
Fluted, the groove profiling is in the side of the display unit；When measurement, by the measurement portion be inserted into the metering-orifice to be measured with
So that the measuring surface is supported the medial surface of the metering-orifice to be measured, the calibrated bolck lower horizontal supported and is put on the workpiece,
The groove fits on the side of the display unit inner diameter values for reading the metering-orifice to be measured shown in the scale area.
Further, the display unit is integrally formed with the measurement portion.
Further, the measuring stick includes two measurement portions, and two measurement portions are respectively arranged at described aobvious
Show the opposite end in portion, is set on the display unit there are two the scale area, each scale area corresponds to a corresponding institute
State measurement portion.
Further, each scale area respectively close on the display unit far from the corresponding measurement portion one
Further, the measurement portion is in the frustum of a cone.
Further, the side of the groove from the calibrated bolck, which is recessed inwardly, to form, the extending direction of the groove with
The length direction of the calibrated bolck is identical, and the bottom surface profiling of the groove is in the part week side of the display unit.
Further, the display unit is cylindric, and the bottom surface of the groove on the calibrated bolck is arc surface.
Further, the measuring stick is made of hard alloy.
Further, the calibrated bolck is made of hard alloy.
Above-mentioned hole measuring device is by the Aided design of measurement portion and calibrated bolck, only need to be by the measurement portion of measuring stick when measurement
It is inserted into metering-orifice to be measured, and calibrated bolck is affixed in measuring stick, the reading on display unit is read, to fast and accurately survey
The internal diameter in hole is measured, easy to detect, detection efficiency and accuracy are high.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The all other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element may be simultaneously present the element being centrally located.When an element is considered as " setting exists " another element,
It, which can be, is set up directly on another element or may be simultaneously present the element being centrally located.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
Referring to Fig. 1, the utility model provides a kind of hole measuring device 100.Hole measuring device 100 is used for workpiece 200 (as schemed
Shown in 3) on the internal diameter of hole (not shown) measure.Hole measuring device 100 includes measuring stick 10 and calibrated bolck 20.Measuring stick 10 with
Calibrated bolck 20 is mutually indepedent and mating setting.The measuring stick 10 is stick cylinder.Measuring stick 10 is for inserting in the hole, with measured hole
Internal diameter.Calibrated bolck 20 is used to fit in matched measuring stick 10 in order to which operator reads the institute shown in measuring stick 10
The inner diameter values in the hole of measurement.
In the present embodiment, measuring stick 10 is made of hard alloy.But not limited to this, in other embodiments, measuring stick 10
It can also be made of rigid plastics etc., as long as measuring stick 10 will not deform when insertion duct.
As shown in Fig. 2, measuring stick 10 includes display unit 11 and at least one measurement portion 12.The setting of at least one measurement portion 12
In one end of display unit 11.Measurement portion 12 is for being inserted into the hole of workpiece 200 with the internal diameter of measured hole.Display unit 11 is for showing
The inner diameter values of institute's gaging hole.In the present embodiment, display unit 11 is integrally formed with measurement portion 12.
In the present embodiment, measuring stick 10 includes a display unit 11 and two measurement portions 12.Two measurement portions 12 are set respectively
It is placed in the opposite end of display unit 11.
Display unit 11 is equipped at least one scale area 111.Scale area 111 is set on the side of display unit 11.Scale
A series of internal diameter scale is set along the length direction of measuring stick 10 in area 111.In the present embodiment, set on display unit 11 there are two
Scale area 111, each scale area 111 respectively correspond a corresponding measurement portion 12.Each scale area 111 is respectively close to display unit
11 one end far from corresponding measurement portion 12.
Measurement portion 12 includes measuring surface 121.Measuring surface 121 is all sides of measurement portion 12.Specifically, measuring surface 121 is
The annular slope of the inclined in relative measurement portion 12.That is, between measuring surface 121 and the central axis of measurement portion 12, there are angles
α.The outer diameter of measuring surface 121 is gradually increased along close to 11 direction of display unit.In the present embodiment, measurement portion 12 and display unit 11 are coaxial
Setting, but not limited to this.
The shape of measurement portion 12 can be configured according to the shape to gaging hole.In the present embodiment, institute's gaging hole is circular hole, is surveyed
Amount portion 12 is the frustum of a cone.But not limited to this, measurement portion 12 is also possible to positive terrace with edge etc..
In the present embodiment, two mutually indepedent operations of measurement portion 12, the design of two measurement portions 12 is mutually different, so that two
The measurement range of a measurement portion 12 is different.The measurement range of each measurement portion 12 is based on the Design of length of measurement portion 12 and correspondence
Measuring surface 121 gradient design.But not limited to this, two measurement portions 12 can also design identical.It can be according to practical survey
Amount needs to measure the design of 121 gradient of 12 length of portion and measuring surface.
Calibrated bolck 20 is matched with corresponding measuring stick 10.In the present embodiment, calibrated bolck 20 is similarly hard alloy system
At.But not limited to this, in other embodiments, calibrated bolck 20 can also be made of rigid plastics etc..
At least one groove 21 is offered on calibrated bolck 20.The side of groove 21 from calibrated bolck 20, which is recessed inwardly, to be formed.It is recessed
The extending direction of slot 21 is identical as the length direction of calibrated bolck 20.The bottom surface profiling of groove 21 is in the part side of display unit 11
Face.Position and measuring surface 121 of scale area 111 of the length of calibrated bolck 20 based on corresponding display unit 11 in measuring stick 10 are oblique
Degree is designed.So that supporting and being placed in beside the hole of workpiece 200 by 20 bottom end of calibrated bolck when reading, the bottom surface of groove 21 is complete
It fits on all sides of display unit 11 entirely, the top end face and 111 intersection of scale area of calibrated bolck 20 are hole to be measured this moment
Corresponding inner diameter values.
In the present embodiment, display unit 11 is generally cylindrical, and the bottom surface of the groove 21 on corresponding calibrated bolck 20 is circular arc
Face.But not limited to this, in other embodiments, display unit 11 is also possible to other shapes, such as prism-shaped, corresponding calibrated bolck 20
On groove 21 bottom surface be matched groove surface.
As shown in figure 3, the measurement portion 12 of measuring stick 10 is inserted into metering-orifice to be measured, the measurement in portion 12 to be measured when measurement
The inner peripheral surface of 121 supported hole of face and after decline cannot being continued in hole, calibrated bolck 20 is placed in by measuring stick 10, so that standard
The bottom end end face of block 20 is horizontally placed in workpiece 200 or other standard station (not shown), and makes the bottom of the groove 21 of calibrated bolck 20
Face is affixed on completely on the side of display unit 11 of measuring stick 10, reads the top end face of calibrated bolck 20 and the quarter of display unit 11 at this time
The scale value of 111 intersection of area is spent, which is the inner diameter values in hole to be measured thus.
Compared to the prior art, the hole measuring device 100 of the utility model is arranged by measurement portion 12 and matching for calibrated bolck 20
The measurement portion 12 of measuring stick 10 when measurement, need to be only inserted into metering-orifice to be measured, and calibrated bolck 20 is affixed in measuring stick 10 by meter,
Read display unit 11 on reading, it is easy to detect so as to fast and accurately measure the internal diameter to portal, detection efficiency and
Accuracy is high.
In addition, those skilled in the art can also do other variations within the spirit of the present invention, certainly, these are according to this reality
The variation made of novel spirit should all be included in the utility model range claimed.