CN204555861U - A kind of vernier depth gauge of head-exchangeable - Google Patents

A kind of vernier depth gauge of head-exchangeable Download PDF

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Publication number
CN204555861U
CN204555861U CN201520120281.4U CN201520120281U CN204555861U CN 204555861 U CN204555861 U CN 204555861U CN 201520120281 U CN201520120281 U CN 201520120281U CN 204555861 U CN204555861 U CN 204555861U
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China
Prior art keywords
head
face
blade
gauge
vernier
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Expired - Fee Related
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CN201520120281.4U
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Chinese (zh)
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盛网军
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盛网军
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Abstract

The blade for dipstick metering the utility model discloses a kind of vernier depth gauge of head-exchangeable, comprise chi frame, sliding in chi frame, for securing member that chi frame and blade are fixed and the vernier being located at chi frame table face; Wherein, the front end face of chi frame forms horizontal survey reference field, and blade is connected with gauge head near the front end face dismounting of measurement datum, and gauge head is standard component; When the front end face of described gauge head flushes with measurement datum, the zero graduation of vernier aligns with the zero graduation of blade.Vernier depth gauge measuring accuracy of the present utility model is high, easy to use, measurement range wide, and measuring object applicatory is many, can carry out transforming on original vernier depth gauge, easily manufactured, and long service life, cost is low.

Description

A kind of vernier depth gauge of head-exchangeable
Technical field
The utility model relates to a kind of depth measurement tools, particularly a kind of vernier depth gauge of head-exchangeable, and it can integrate the function of measuring workpieces point, line, surface various positions kenel.
Background technology
Vernier caliper is a kind of conventional accurate survey instrument; Wherein vernier depth gauge is a class for the vernier caliper of the depth dimensions or step height and slotted eye degree of depth equidimension of measuring part, is also often called as " pit gauge ".To measure bore depth, during use, need the end face measuring pedestal to abut against on the end face of measured hole, making the centerline parallel of blade and measured hole, stretch into blade, then the distance between blade end face to base end face, is exactly the depth dimensions of tested part.
But the head as measurement initiating terminal of existing vernier depth gauge body mostly is square planar, and measuring surface is large; Cannot be suitable under blade head and degree of depth surface of the work to be checked are not the actual conditions that contact of face, or cannot very accurately reflection planes actual grade everywhere by measuring the numerical value that reads out.Namely there is measuring object and shortcoming that is range limited, that use inconvenience in existing vernier depth gauge.In addition, existing vernier depth gauge with the process of determinand surface contact in easily produce wearing and tearing, exist measuring accuracy with service time increase and reduce problem.
Utility model content
For overcoming above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of multi-functional head-exchangeable vernier depth gauge, with overcome measuring object that prior art exists and range limited, use inconvenient and measuring accuracy by the problem that service time, length affected.
For this reason, the technical scheme of the utility model technical solution problem is a kind of vernier depth gauge of head-exchangeable, the blade for dipstick metering comprise chi frame, sliding in chi frame, for the securing member that chi frame and blade fixed and the vernier being located at chi frame table face; Wherein, the front end face of chi frame forms horizontal survey reference field, and blade is connected with gauge head near the front end face dismounting of measurement datum, and gauge head is standard component; When the front end face of described gauge head flushes with measurement datum, the zero graduation of vernier aligns with the zero graduation of blade.
By improving on the basis of original vernier depth gauge, be provided with standard component gauge head, at vernier caliper because head to contact with determinand cause wearing and tearing after can change, thus solve measuring accuracy by the problem affected service time, and according to determinand surface structure design and gauge head can be selected, realize gauge head better to contact with determinand surface, improve the precision of measurement, expanding can measuring object and scope.
For making the gauge head of standard component adapt to various measuring object, preferably, described gauge head has preceding near the contact segment of determinand, and the front end of described contact segment is taper or wedge shape or cylindricality.Wherein, the gauge head of taper and work piece interface are very little, the precision of each point on energy reflected measurement face.The gauge head of cylindricality can contact with measuring surface forming surface, ensures twocouese dimensional accuracy.The kind of the gauge head of wedge shape is a lot, can form linear contact lay, bonding direction dimensional accuracy with workpiece calibration face; Also point cantact can be formed, the precision of each point on reflected measurement face; Also can forming surface contact; Even can be designed to wedge head, for measuring the dovetail degree of depth etc.
Connect gauge head for convenience, preferably, described gauge head also comprises the linkage section that posterior and described blade is connected; The front end face of described blade offers threaded hole; Described linkage section comprises the thread segment coordinated with the threaded hole of described blade and the relief groove section being connected described thread segment and described contact segment.So only need do process and remould on original blade.Design relief groove can facilitate the processing of gauge head thread segment, makes not easily to scratch gauge head surface in the process of machining screw section, otherwise gauge head surface particularly occurs to scratch in contact segment surface, can cause measuring accuracy to a certain extent.
Install location for convenience, improve the positioning precision of the front-end surface of gauge head, preferably, the rear end face size of described contact segment is greater than described threaded hole size.The rear end face of such contact segment can be strictly exposed outside the threaded hole of blade.
Here, preferred measuring head structure can also be, the contact segment of gauge head can be cylindrical, compared to the column construction that other can contact with measuring surface forming surface, and easily processing and not easily injured surface.
Preferred measuring head structure can also be, the front end of the contact segment of gauge head is conical, and rear end is cylindrical, and the vertex of a cone is the bulb with conical surface rounding off.So both defined point cantact with measuring surface, and again reduced the wearing and tearing of gauge head, improve the serviceable life of gauge head.
Preferred measuring head structure can also be, the rear end of described contact segment is cylindrical, and front end is wedge shape, and the front end face of wedge-like portion is straight line.Linear contact lay can be formed like this with measuring surface, and the outside surface of not easy damaged gauge head.
Preferred measuring head structure can also be, the rear end of described contact segment is square column type, and front end is wedge shape, and the front end face of wedge-like portion is arc surface.Point cantact can be formed with measuring surface like this, be applicable to the depth survey of the measuring surface having certain cambered surface.
Preferred measuring head structure can also be, described wedge shape is the inclined wedge-shaped that dovetail groove can be stretched in tip, and the front end face of inclined wedge-shaped part is vertical with described blade length direction.The degree of depth of dovetail groove can be measured like this.For convenience of the gauge head of inclined wedge-shaped and the connection of blade, and facilitate the processing of gauge head standard component, further preferably, the rear end face of described contact segment offers threaded hole; The front end face of described blade offers threaded hole; Described gauge head is tightened together by stud bolt with described blade.
Advantage of the present utility model and beneficial effect are: vernier depth gauge measuring accuracy of the present utility model is high, easy to use, measurement range is wide, measuring object applicatory is many, can carry out transforming on original vernier depth gauge, easily manufactured, and long service life, cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of vernier depth gauge in embodiment 1;
Fig. 2 is the structural representation that Fig. 1 is unkitted when being furnished with gauge head;
Fig. 3 be Fig. 2 partly cut open schematic diagram;
Fig. 4 is the front view of gauge head in embodiment 2;
Fig. 5 is the front view of gauge head in embodiment 3;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the left view of Fig. 5;
Fig. 8 is the front view of gauge head in embodiment 4;
Fig. 9 is the vertical view of Fig. 8;
Figure 10 is the left view of Fig. 8;
Figure 11 be in embodiment 5 vernier depth gauge partly cut open schematic diagram.
In figure: 1, chi frame; 2, blade; 3, trip bolt; 4, vernier; 5, gauge head; 6, measurement datum; 7, stud bolt; 21, threaded hole; 51, contact segment; 52, relief groove section; 53, thread segment; 510, threaded hole.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Embodiment 1
The utility model is a kind of vernier depth gauge of head-exchangeable, comprise chi frame 1, blade 2 slidably for dipstick metering in chi frame 1, for trip bolt 3 that chi frame 1 and blade 2 are fixed and the vernier 4 being located at chi frame 1 surface; Wherein, the front end face of chi frame 1 forms horizontal survey reference field, and blade 2 is connected with gauge head 5 near the front end face dismounting of measurement datum, and gauge head 5 is standard component; When the front end face of gauge head 5 flushes with measurement datum 6, the zero graduation of vernier 4 aligns with the zero graduation of blade 2.
As shown in Figure 1 to Figure 3, the front end face of blade 2 offers the threaded hole 21 that diameter is 3mm, axial length is 15mm.Gauge head 5 comprises the contact segment 51 and the posterior linkage section be connected with blade 2 with preceding close determinand; Linkage section comprises the relief groove section 52 of thread segment 53 and connecting thread section 53 and the contact segment 51 coordinated with the threaded hole of blade 2.Contact segment 51 for diameter be 4mm, axial length is the cylindrical of 10mm.The specification of thread segment 53 is M3, and axial length is 6mm; The axial length of relief groove section 52 is 1mm, diameter is 2mm.
Embodiment 2
With in embodiment 1 unlike, in the present embodiment, the contact segment 51 of gauge head 5 is not cylindrical, but unitized construction.As shown in Figure 4, the axial length of contact segment 51 is 10mm, comprise the taper shape of front end and the cylindrical of rear end, the diameter of bottom cylindrical face diameter and circular cone bottom surface is 4mm, the cone angle of circular cone is 90 degree, and the vertex of a cone is the bulb with conical surface rounding off, Probe-radius is 1.5mm, and the centre of sphere of bulb is 2.37mm to the axial length of conical bottom.The structure of threaded hole 21 structure of blade 2 and the linkage section of gauge head 5 is identical with embodiment 1.
Embodiment 3
With in embodiment 1 unlike, in the present embodiment, the contact segment 51 of gauge head 5 is not cylindrical, but unitized construction.As shown in Figures 5 to 7, the axial length of contact segment 51 is 10mm, and the diameter of the wedge-like portion and rear end that comprise front end is the cylindrical part of 4mm; The straight line of the front end face of wedge-like portion to be width be 1mm, the cylindrical both sides being 4mm by diameter are cut and are formed, and the angle of wedge is 60 degree.The structure of threaded hole 21 structure of blade 2 and the linkage section of gauge head 5 is identical with embodiment 1.
Embodiment 4
With in embodiment 1 unlike, in the present embodiment, the contact segment 51 of gauge head 5 is not cylindrical, but is combined by the wedge-like portion of front end and the square column type of rear end.As shown in Fig. 8 to Figure 10, the square column type that contact segment 51 can be 10mm × 4.5mm by bottom surface, axial length is 10mm processes, the foursquare both sides of this square column type are cut from middle part near front end, forming most tip width in front end is the wedge shape of 1mm, then the front end face of contact segment 51 is processed into the cambered surface that radius is 5mm.The structure of threaded hole 21 structure of blade 2 and the linkage section of gauge head 5 is identical with embodiment 1.
Embodiment 5
With in embodiment 1 unlike, in the present embodiment, the contact segment 51 of gauge head 5 is not cylindrical, but the square column type being the inclined wedge-shaped and rear end that dovetail groove can be stretched in tip by front end combines, and the front end face of inclined wedge-shaped part is vertical with blade 2 length direction.As shown in figure 11, employing bottom surface is axial length is 10mm, width is 18mm, thickness is the square column type of 4.5mm, at the front end face narrow side of this square column type, namely the limit that 4.5mm is long, cut the wedge-like portion that the angle of wedge is 30 degree, the square column type of 8mm × 4.5mm is cut at the rear end face of this square column type.
In addition, for convenience of the connection of this gauge head 5 with blade 2, in the present embodiment, gauge head 5 is also different from embodiment 1 with the connected mode of blade 2.In the present embodiment, the threaded hole 510 of M3 specification is offered at the rear end face of contact segment 51; The front end face of blade 2 offers the threaded hole of M3 specification; Gauge head 5 is tightened together by stud bolt 7 with blade 2.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (9)

1. a vernier depth gauge for head-exchangeable, is characterized in that, the blade for dipstick metering comprise chi frame, sliding in chi frame, for the securing member that chi frame and blade fixed and the vernier being located at chi frame table face; Wherein, the front end face of chi frame forms horizontal survey reference field, and blade is connected with gauge head near the front end face dismounting of measurement datum, and gauge head is standard component; When the front end face of described gauge head flushes with measurement datum, the zero graduation of vernier aligns with the zero graduation of blade.
2. the vernier depth gauge of head-exchangeable as claimed in claim 1, is characterized in that, described gauge head has preceding for the contact segment near determinand, and the front end of described contact segment is taper or wedge shape or cylindricality.
3. the vernier depth gauge of head-exchangeable as claimed in claim 2, it is characterized in that, described gauge head also comprises the linkage section that posterior and described blade is connected; The front end face of described blade offers threaded hole; Described linkage section comprises the thread segment coordinated with the threaded hole of described blade and the relief groove section being connected described thread segment and described contact segment.
4. the vernier depth gauge of head-exchangeable as claimed in claim 3, it is characterized in that, the rear end face size of described contact segment is greater than described threaded hole size.
5. the vernier depth gauge of head-exchangeable as claimed in claim 3, is characterized in that, the front end of described contact segment is conical, and rear end is cylindrical, and the vertex of a cone is the bulb with conical surface rounding off.
6. the vernier depth gauge of head-exchangeable as claimed in claim 3, it is characterized in that, the rear end of described contact segment is cylindrical, and front end is wedge shape, and the front end face of wedge-like portion is straight line.
7. the vernier depth gauge of head-exchangeable as claimed in claim 3, it is characterized in that, the rear end of described contact segment is square column type, and front end is wedge shape, and the front end face of wedge-like portion is arc surface.
8. the vernier depth gauge of head-exchangeable as claimed in claim 2, it is characterized in that, described wedge shape is the inclined wedge-shaped that dovetail groove can be stretched in tip, and the front end face of inclined wedge-shaped part is vertical with described blade length direction.
9. the vernier depth gauge of head-exchangeable as claimed in claim 8, it is characterized in that, the rear end face of described contact segment offers threaded hole; The front end face of described blade offers threaded hole; Described gauge head is tightened together by stud bolt with described blade.
CN201520120281.4U 2015-03-02 2015-03-02 A kind of vernier depth gauge of head-exchangeable Expired - Fee Related CN204555861U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168400A (en) * 2017-11-13 2018-06-15 武汉船用机械有限责任公司 The dovetail groove detection device and detection method of a kind of annular element
CN109141176A (en) * 2018-09-06 2019-01-04 国营芜湖机械厂 A kind of length of straigh line detection device and its detection method for aircraft conduit
CN109577501A (en) * 2018-12-10 2019-04-05 中冶建工集团有限公司 A kind of external wall insulation anchoring construction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108168400A (en) * 2017-11-13 2018-06-15 武汉船用机械有限责任公司 The dovetail groove detection device and detection method of a kind of annular element
CN108168400B (en) * 2017-11-13 2020-10-27 武汉船用机械有限责任公司 Dovetail groove detection device and detection method for annular part
CN109141176A (en) * 2018-09-06 2019-01-04 国营芜湖机械厂 A kind of length of straigh line detection device and its detection method for aircraft conduit
CN109577501A (en) * 2018-12-10 2019-04-05 中冶建工集团有限公司 A kind of external wall insulation anchoring construction method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150812

Termination date: 20170302

CF01 Termination of patent right due to non-payment of annual fee