CN202329460U - Taper hole measurement device - Google Patents

Taper hole measurement device Download PDF

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Publication number
CN202329460U
CN202329460U CN2011204048232U CN201120404823U CN202329460U CN 202329460 U CN202329460 U CN 202329460U CN 2011204048232 U CN2011204048232 U CN 2011204048232U CN 201120404823 U CN201120404823 U CN 201120404823U CN 202329460 U CN202329460 U CN 202329460U
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China
Prior art keywords
sliding bar
sliding
contact
taper hole
core
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CN2011204048232U
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Chinese (zh)
Inventor
郭建东
田冀峰
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Citic Dicastal Co Ltd
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Citic Dicastal Co Ltd
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Priority to CN2011204048232U priority Critical patent/CN202329460U/en
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Abstract

The utility model relates to a taper hole measurement device, comprising a base (2), a sliding bar (5), a sliding core (8), a contact (1) and a dial indicator (6), wherein the contact (1) is arranged in a hole at the lower end of the sliding bar (5), the sliding core (8) is arranged in the sliding bar (5), the dial indicator (6) is arranged at the upper end of the sliding bar (5) by an expander (10), a lock screw (4) on the sliding bar (5) is used for limiting a relative position between the sliding core (8) and the sliding bar (5), springs (7) and (9) in the sliding bar (5) ensure reliable contact between the contact (1) and the sliding core (8), the sliding bar (5) is arranged in the middle of the base (2) and can be seen from a window (3) on the side surface of the base (2), scales are set on the base window (3) and the sliding bar, and a vernier depth gauge is formed by the base (2) and the sliding bar (5). The taper hole measurement device can meet the requirement on taper hole measurement precision, has a low requirement on an operator, can be used after machining and in machining, and has the advantages of being wide in adaptability and convenient to manufacture, and the like.

Description

A kind of taper hole measurement mechanism
Technical field
The utility model relates to the technical field that component of machine detects, specifically a kind of taper hole measurement mechanism.
Background technology
In machine construction and Machine Design, the circular cone cooperation has a wide range of applications.Mainly be advantage such as can freely adjust because female cone hole and outer cone have higher right alignment, good sealing property, stable cooperation self-locking performance, gap and interference.
But because the profile of female cone hole and outer cone is tapered, there is fillet in the end at taper hole toward contact simultaneously, and this makes troubles all for processing and detection, and especially surveying work more shows complicated than cylindrical measurement.Like Fig. 1, be exactly common a kind of taper hole structure mask method, wherein outside diameter D, cone height H, cone angle are important design parameters, also are the numerical value that often needs detection.At present, conventional measuring method is mainly divided three types, i.e. comparative measurement method, the direct method of measurement, the indirect method of measurement.
Comparative measurement method is compared standard taper measurer such as plug cone gage or ring gauge exactly with tested tapering; Perhaps be coated with color method inspection with light gap method; Contact area and contact site through inspection feeler gauge or ring gauge and tested tapering judge whether tapering is qualified; This measuring method can only be judged tested tapering whether in the margin tolerance that allows, and can not draw the concrete numerical value of tapering.
The direct method of measurement is exactly directly to read tested tapering from measurement instrument, and instrument commonly used has tool microscope, three coordinate measuring machine etc., and convenient measurement but complicated operation, equipment price are expensive.
The indirect method of measurement then is to measure the linear dimension relevant with tested tapering, calculates the correlation parameter of tested tapering through trigonometric function.Compare with the comparative measurement method and the direct method of measurement, the indirect method of measurement often adopts some specific structure, and is undertaken by the routine measurement utensil, has and measures advantages such as with strong points, that cost is low, measurement result is accurate, therefore is machined enterprise and widely uses.
Summary of the invention
The purpose of the utility model is that a kind of taper hole measurement mechanism will be provided, and it can satisfy the detection needs of machining enterprise to the taper hole parameter, has simple in structure, easy making, precision simultaneously and can satisfy the characteristics that require that detect.
The utility model belongs to the category of the indirect method of measurement, be the geometric features according to taper hole, utilizes trigonometric function to calculate the correlation parameter of tested tapering, and its design concept utilizes Fig. 2 to prove as follows.
Among Fig. 2, all parameters of taper hole such as outside diameter D 1, cone height H 1, cone angle can calculate through formula.Concrete formula is:
In view of the above, as long as measure D 2, D 4, H 2, H 3, △ D, just can calculate the correlation parameter of taper hole.
To achieve these goals, the technical scheme of the utility model is: a kind of taper hole measurement mechanism, and it mainly is made up of pedestal, sliding bar, sliding core, contact, dial gauge; Contact is installed in the hole of sliding bar lower end, and sliding core is installed in sliding bar inside, and dial gauge is installed in the sliding bar upper end through the ring that rises; Lock-screw is set, the mutual alignment of sliding core of restriction and sliding bar, sliding bar set inside spring on the sliding bar; Guarantee that contact contacts reliably with sliding core; Sliding bar is installed in the middle of the pedestal, and the window through the pedestal side is observed sliding bar, pedestal window position and scale is all arranged above the sliding bar; Pedestal and sliding bar utilize scale to form vernier depth gauge, and energy measurement goes out the change in location of the relative pedestal of sliding bar.
For the ease of measuring and data, when making this measurement mechanism, can some structures or size be confirmed based on needs.The utility model is confirmed as the initial reading of vernier depth gauge with contact axis to the distance of pedestal lower end, and the place diameter of a circle is confirmed as D during with the contact outermost 2, the inboard and sliding core of contact lower end cone angle is confirmed as 45 degree.
Before the use, the vernier depth gauge with pedestal and sliding bar composition places start bit earlier, and the lock-screw on the locking sliding bar, then the base bottom surface wiped clean is lain on the tested taper hole, and just can measure this moment.
During measurement, earlier sliding bar is pushed away downwards, when contact touched the taper hole inside surface, because lock-screw will slide core and fix, and sliding core lower end had been limited contact and has been moved to the centre, so sliding bar stops to move down, writes down the numerical value H of vernier depth gauge this moment 2, place, contact outside taper hole diameter at this moment is exactly D 2Unclamp lock-screw then, and, then continue to promote one section suitable distance of sliding bar downwards to H with dial gauge zero setting 3, the changing value △ D of record dial gauge, and calculate D 3=D 2-2 △ D; Use etalon such as vernier caliper or micrometer inside caliper to measure D at last 4
So far, calculate needed all data of taper hole and just all measured, the computing formula above the substitution just can calculate the taper hole parameter that needs detection.
The utility model in use can satisfy the measuring accuracy requirement of taper hole, and is not high to operator's technical requirement, can use in mechanical component processing back, also can in process, use, and have characteristics such as wide adaptability, simple in structure, convenient making.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is common a kind of taper hole structure method for expressing.
Fig. 2 utilizes trigonometric function to calculate taper hole parameter synoptic diagram.
Fig. 3 is the front view of the utility model one embodiment.
Fig. 4 is the cut-open view of device shown in Figure 1.
Fig. 5 is a device window position A-A view shown in Figure 3.
Fig. 6 is device cut-open view and a vernier depth gauge reading before use shown in Figure 1.
Fig. 7 is device cut-open view and a vernier depth gauge reading in use shown in Figure 1.
1. contacts among the figure, 2. pedestal, 3. reading window, 4. lock-screw, 5. sliding bar, 6. dial gauge, 7. spring is 8. slided core, 9. spring, ring 10. rises.
Embodiment
Specify the details and the working condition of the concrete device that proposes according to the utility model below in conjunction with accompanying drawing.
A kind of taper hole measurement mechanism of the utility model; Mainly be made up of pedestal (2), sliding bar (5), sliding core (8), contact (1), dial gauge (6), contact (1) is installed in the hole of sliding bar (5) lower end, and sliding core (8) is installed in sliding bar (5) inside; Dial gauge (6) is installed in sliding bar (5) upper end through the ring (10) that rises; Lock-screw (4) on the sliding bar (5) is used for limiting the mutual alignment of sliding core (8) and sliding bar (5), and inner spring (7), (9) of sliding bar (5) guarantee that contact (1) contacts reliably with sliding core (8), and sliding bar (5) is installed in the middle of the pedestal (2); Window (3) through pedestal (2) side can be seen sliding bar (5); Pedestal window position (3) and scale is all arranged above the sliding bar, the two forms vernier depth gauge pedestal (2) and sliding bar (5), can accurately measure sliding bar (5) change in location of pedestal (2) relatively.
For the ease of measuring and data, when making this measurement mechanism, can some structures or size be confirmed based on needs.Present embodiment is confirmed as the initial reading of vernier depth gauge with contact (1) axis to the distance of pedestal (2) lower end, and the place diameter of a circle is confirmed as D during with contact (1) outermost 2, the inboard and sliding core (8) of contact (1) lower end cone angle is confirmed as 45 degree.
Before the use; Vernier depth gauge reading with pedestal (2) and sliding bar (5) composition places start bit earlier; And the lock-screw (4) in locking sliding bar (5) (at this moment the vernier depth gauge reading is the distance that contact axis arrives the pedestal lower end, rather than " 0 ", and contact outermost place diameter of a circle is (D 2), then pedestal (2) bottom surface wiped clean being lain on the tested taper hole, just can measure this moment, as shown in Figure 6.
During measurement; Earlier sliding bar (5) is pushed away downwards, sliding bar (5) and top dial gauge (6) thereof, inner sliding core (8), the contact (1) of lower end move down simultaneously at this moment, when contact (1) touches the taper hole inside surface; Because it is fixing that lock-screw (4) will have been slided core (8); And sliding core (8) lower end has been limited contact (1) and has been moved to the centre, so sliding bar (5) stops to move down the numerical value H that this moment, vernier depth gauge showed 2Be exactly the distance of contact (1) axial line to pedestal (2) bottom surface, place, contact at this moment (1) outside taper hole diameter is exactly D 2, as shown in Figure 7; Unclamp lock-screw (4) then, and, then continue to promote (5) one sections suitable distance of sliding bar downwards to H with dial gauge (6) zero setting 3, contact this moment (1) moves to sliding bar (5) center, and utilizes the inboard tapering sliding core of promotion (8) to move up, and the indicating value of dial gauge (6) is changed, and representes with △ D; Use etalon (like vernier caliper or micrometer inside caliper) to measure D at last 4
So far, calculate needed all data of taper hole and just all measured, the computing formula of substitution front just can calculate the taper hole parameter that needs detection.
In Fig. 6, Fig. 7, D 2=90mm, H 2=13.2 mm, H 3=16.4 mm, △ D=2mm, D 4=44.5 mm then according to the front formula, can get:
α=64?°。
D 1=106.5?mm。
H 1=49.6?mm。

Claims (2)

1. a taper hole measurement mechanism comprises pedestal (2), sliding bar (5), sliding core (8), contact (1), dial gauge (6), and it is characterized in that: contact (1) is installed in the hole of sliding bar (5) lower end; Sliding core (8) is installed in sliding bar (5) inside; Dial gauge (6) is installed in sliding bar (5) upper end through the ring (10) that rises, and lock-screw (4) is set on the sliding bar (5), the mutual alignment of sliding core (8) of restriction and sliding bar (5); Sliding bar (5) inner, spring (7), (9) are set; Guarantee that contact (1) contacts reliably with sliding core (8), sliding bar (5) is installed in the middle of the pedestal (2), observes sliding bar (5) through the window (3) of pedestal (2) side.
2. a kind of taper hole measurement mechanism according to claim 1 is characterized in that: pedestal window position (3) and be provided with scale above the sliding bar, the two forms vernier depth gauge pedestal (2) and sliding bar (5).
CN2011204048232U 2011-10-22 2011-10-22 Taper hole measurement device Active CN202329460U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204048232U CN202329460U (en) 2011-10-22 2011-10-22 Taper hole measurement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204048232U CN202329460U (en) 2011-10-22 2011-10-22 Taper hole measurement device

Publications (1)

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CN202329460U true CN202329460U (en) 2012-07-11

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506632A (en) * 2011-10-22 2012-06-20 中信戴卡轮毂制造股份有限公司 Device for measuring taper hole
CN105547094A (en) * 2016-01-23 2016-05-04 中信戴卡股份有限公司 Tool for detecting height of circular cone
CN110044228A (en) * 2019-05-17 2019-07-23 山西北方机械制造有限责任公司 A kind of more cone deep hole detection devices of high-precision and detection method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506632A (en) * 2011-10-22 2012-06-20 中信戴卡轮毂制造股份有限公司 Device for measuring taper hole
CN105547094A (en) * 2016-01-23 2016-05-04 中信戴卡股份有限公司 Tool for detecting height of circular cone
CN110044228A (en) * 2019-05-17 2019-07-23 山西北方机械制造有限责任公司 A kind of more cone deep hole detection devices of high-precision and detection method

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: CITIC DICASTAL CORP.

Free format text: FORMER NAME: DICASTAL WHEEL MANUFACTURING CO., LTD.

CP03 Change of name, title or address

Address after: 066318 Longhai Road, Qinhuangdao economic and Technological Development Zone, Hebei, No. 185

Patentee after: CITIC Dicastal Co., Ltd.

Address before: 066003 No. 355, Donggang Road, seaport District, Hebei, Qinhuangdao

Patentee before: Dicastal Wheel Manufacturing Co., Ltd.