CN112833750B - Double-chamfer depth checking fixture - Google Patents
Double-chamfer depth checking fixture Download PDFInfo
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- CN112833750B CN112833750B CN202110307056.1A CN202110307056A CN112833750B CN 112833750 B CN112833750 B CN 112833750B CN 202110307056 A CN202110307056 A CN 202110307056A CN 112833750 B CN112833750 B CN 112833750B
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- guide sleeve
- chamfer
- measuring
- shaft
- outer guide
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a double-chamfer depth gauge, which comprises: one end of the outer guide sleeve is in plane contact with the end surface of the orifice during detection; the outer chamfer detection assembly is movably inserted into the outer guide sleeve along the axial direction of the outer guide sleeve, and one end of the outer chamfer detection assembly abuts against the outer chamfer during detection; the inner chamfer detection assembly is movably inserted in the axial direction of the outer guide sleeve, and one end of the inner chamfer detection assembly abuts against the inner chamfer during detection; two percentage tables are installed at the other end of the outer guide sleeve, the end parts of measuring rods of the two percentage tables are respectively abutted against the other ends of the inner chamfer angle detecting component and the outer chamfer angle detecting component, and the depth sizes of the inner chamfer angle and the outer chamfer angle are respectively displayed. By adopting the scheme of the invention, the depth dimension of the double chamfers can be accurately and efficiently measured, and the cost is lower.
Description
Technical Field
The invention relates to the technical field of detection tools, in particular to a detection tool for detecting double chamfers of a hole of a mechanical part.
Background
At present, many mechanical parts (such as the hole 4B203 of the EA888 engine block, which is a mounting hole for mounting a temperature sensor) are provided with double-chamfer structures for facilitating mounting guidance and avoiding burrs of the hole. In order to ensure the size precision of the double-chamfer structure, the double-chamfer structure needs to be detected by a detection tool, a smooth plug gauge and an inner diameter gauge are adopted for measurement in the prior art, however, no relevant detection tool is used for detecting the depth size of the double-chamfer structure, certain quality risks exist in the batch production process, especially, after a new cutter is replaced or the cutter is worn, the depth size of the chamfer can be greatly changed, and therefore, a detection tool needs to be designed, so that the depth of the double chamfers can be conveniently and accurately measured.
Disclosure of Invention
The invention aims to provide a double-chamfer depth gauge which can accurately and efficiently measure the depth dimension of a double chamfer and is low in cost.
The purpose of the invention is realized as follows: a double chamfer depth gauge comprising:
one end of the outer guide sleeve is in plane contact with the end face of the orifice during detection;
the outer chamfer detection assembly is movably inserted into the outer guide sleeve along the axial direction of the outer guide sleeve, and one end of the outer chamfer detection assembly abuts against the outer chamfer during detection;
the inner chamfer detection assembly is movably inserted in the axial direction of the outer guide sleeve, and one end of the inner chamfer detection assembly abuts against the inner chamfer during detection;
two percentage tables are installed at the other end of the outer guide sleeve, the end parts of measuring rods of the two percentage tables are respectively abutted against the other ends of the inner chamfer angle detecting component and the outer chamfer angle detecting component, and the depth sizes of the inner chamfer angle and the outer chamfer angle are respectively displayed.
Further, the inner chamfer detecting assembly comprises a measuring shaft which is coaxial with the outer guide sleeve; one shaft end of the measuring shaft is coaxially provided with a measuring end block of a rotary body structure, and the measuring end block abuts against an outer chamfer of a measured hole during detection; and the other shaft end of the measuring shaft is abutted against the end part of the measuring rod of the corresponding dial indicator.
Further, the outer chamfer detection assembly comprises an inner guide sleeve coaxial with the outer guide sleeve, the measuring shaft is movably inserted into the inner guide sleeve along the axial direction, a circle of shaft part convex rings protruding along the radial direction are coaxially arranged on the shaft body of the measuring shaft, the shaft part convex rings are located in stepped holes formed in the inner guide sleeve, a first spring is coaxially sleeved on the measuring shaft, one end of the first spring is connected with the shaft part convex rings, and the other end of the first spring is connected with the end part of the stepped hole of the inner guide sleeve.
Furthermore, a movable plate is fixedly connected to the end, which is abutted against the dial indicator, of the measuring shaft, is movably arranged in the outer guide sleeve, and the movable plate directly abuts against the end of the measuring rod of the dial indicator.
Furthermore, the outer guide sleeve is provided with a movable cavity for accommodating the movable plate therein, and the movable cavity penetrates through the outer guide sleeve in a direction perpendicular to the axial direction of the outer guide sleeve.
Furthermore, the other end of the outer guide sleeve is fixedly arranged to form an upper cover of the two dial indicator installation bases.
Furthermore, one end of the inner guide sleeve is provided with a measuring end head coaxially and movably sleeved with the measuring end block, and the measuring end head abuts against an outer chamfer of the measured hole during detection; the other end of the inner guide sleeve is abutted against the end part of the measuring rod of the dial indicator corresponding to the inner guide sleeve; the inner guide sleeve is sleeved with a second spring, a measuring end of the inner guide sleeve is positioned in a stepped hole in the outer guide sleeve, and the measuring end is elastically connected with the end face of the stepped hole in the outer guide sleeve through the second spring.
Furthermore, the two dial indicators are both provided with a shaft sleeve fixing frame for fixing the shaft sleeves of the two dial indicators, wherein the dial indicator abutting against the inner guide sleeve is also provided with a guide rod bracket for mounting the shaft sleeve fixing frame of the two dial indicators, the guide rod bracket movably penetrates through the upper cover and is in threaded connection with the movable plate, and the dial indicator for measuring the inner chamfer is assembled with the upper cover through the shaft sleeve fixing frame of the dial indicator.
Furthermore, the outer guide sleeve is threaded with a limit screw in a penetrating mode, and the tail end of a threaded portion of the limit screw abuts against the outer peripheral wall of the inner guide sleeve when the inner guide sleeve is axially limited.
Further, the periphery wall of interior guide pin bushing is coaxial to be equipped with round location ring channel, stop screw's screw thread portion insert, support when carrying out axial spacing to interior guide pin bushing and lean on the location ring channel.
The invention has the beneficial effects that:
1. the measuring shaft, the inner guide sleeve and the outer guide sleeve can be used for respectively abutting against the inner chamfer, the outer chamfer and the orifice end face, the outer guide sleeve abuts against the orifice end face to lock a measuring reference, and the measuring shaft and the inner guide sleeve respectively abut against the inner chamfer and the outer chamfer, so that the deviation between the depth size of the inner chamfer and the outer chamfer and a standard value is accurately detected, and the function of a gauge is achieved;
2. the device has the advantages of simple structure, simple manufacturing and maintenance, good reliability, convenient use and operation, high detection precision, great popularization value and suitability for use in production workshops.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an axial cross-sectional view of the present invention.
Fig. 3 is a detailed view of the structure of the portion a in fig. 2.
Fig. 4 is a top view of the present invention.
In the figure, a dial indicator 1, a meter frame 2, a shaft sleeve 3, a shaft sleeve fixing frame 4, an upper cover 5, a movable plate 6, a screw 7, an inner guide sleeve 8, a measuring end 8a, a positioning ring groove 8b, a measuring shaft 9, a measuring end block 9a, a shaft part convex ring 9b, a first spring 10, a bolt 11, a second spring 12, a limit screw 13, an outer guide sleeve 14, a movable cavity 14a, a measuring rod 15 and a guide rod bracket 16 are arranged.
Detailed Description
The invention will be further described with reference to the accompanying figures 1-4 and the specific embodiments.
As shown in fig. 1 to 4, a double chamfer depth gauge includes:
an outer guide sleeve 14, one end of which is in plane contact with the end surface of the orifice during detection;
the outer chamfer detection assembly is movably inserted into the outer guide sleeve 14 along the axial direction of the outer guide sleeve 14, and one end of the outer chamfer detection assembly abuts against an outer chamfer during detection;
an inner chamfer detecting component movably inserted in the axial direction of the outer guide sleeve 14, one end of which abuts against the inner chamfer during detection;
two percentage table 1, it is from taking table frame 2, axle sleeve 3 and measuring stick 15, installs at the outer guide pin bushing 14 other end, and the measuring stick 15 tip of two percentage tables 1 supports respectively to lean on the other end of interior chamfer detecting element, outer chamfer detecting element to show the degree of depth size of inboard chamfer, outside chamfer respectively.
The inner chamfer detection assembly comprises a measuring shaft 9 which is coaxial with an outer guide sleeve 14; one shaft end of the measuring shaft 9 is coaxially provided with a measuring end block 9a of a rotary body structure, and the measuring end block 9a abuts against the outer side chamfer of the hole to be measured during detection; the other shaft end of the measuring shaft 9 is abutted against the end part of the measuring rod 15 of the corresponding dial indicator 1.
The outer chamfer detection assembly comprises an inner guide sleeve 8 coaxial with an outer guide sleeve 14, a measuring shaft 9 is movably inserted into the inner guide sleeve 8 along the axial direction, a circle of shaft part convex rings 9b protruding along the radial direction are coaxially arranged on the shaft body of the measuring shaft 9, the shaft part convex rings 9b are positioned in a stepped hole formed in the inner guide sleeve 8, a first spring 10 is coaxially sleeved on the measuring shaft 9, one end of the first spring 10 is connected with the shaft part convex rings 9b, and the other end of the first spring 10 is connected with the end part of the stepped hole of the inner guide sleeve 8.
The axle head fixedly connected with loose plate 6 of the conflict percentage table 1 of above-mentioned measuring spindle 9, in outer guide pin bushing 14 was located in the loose plate 6 activity, loose plate 6 directly contradicts the measuring stick 15 tip of percentage table 1, and loose plate 6 passes through screw 7 to be installed on measuring spindle 9.
The outer guide sleeve 14 is provided with a movable cavity 14a for accommodating the movable flap 6 therein, and the movable cavity 14a penetrates the outer guide sleeve 14 in a direction perpendicular to the axial direction of the outer guide sleeve 14.
The other end of the outer guide sleeve 14 is provided with an upper cover 5 which is fixedly arranged and forms the installation basis of the two dial indicators 1, the upper cover 5 is arranged on the outer guide sleeve 14 through a pair of bolts 11, and the upper cover 5 forms the upper wall of the movable cavity 14 a.
One end of the inner guide sleeve 8 is provided with a measuring end 8a coaxially and movably sleeved with the measuring end block 9a, and the measuring end 8a abuts against an outer chamfer of the measured hole during detection; the other end of the inner guide sleeve 8 is abutted against the end part of the corresponding measuring rod 15 of the dial indicator 1; the inner guide sleeve 8 is sleeved with a second spring 12, a measuring end 8a of the inner guide sleeve 8 is positioned in a stepped hole arranged in the outer guide sleeve 14, and the measuring end 8a is elastically connected with the end face of the stepped hole in the outer guide sleeve 14 through the second spring 12.
Two percentage tables 1 are respectively provided with a shaft sleeve fixing frame 4 for fixing a shaft sleeve 3 thereof, wherein the percentage table 1 abutting against the inner guide sleeve 8 is also provided with a guide rod bracket 16 for installing the shaft sleeve fixing frame 4 thereof, the guide rod bracket 16 movably penetrates through the upper cover 5 and is in threaded connection with the movable plate 6, and the percentage table 1 for measuring the inner chamfer is assembled with the upper cover 5 through the shaft sleeve fixing frame 4 thereof.
Above-mentioned outer guide pin bushing 14 screw thread cross-under has set screw 13, and set screw 13's screw portion end is carrying out the peripheral wall of interior guide pin bushing 8 when axial is spacing to interior guide pin bushing 8, and above-mentioned peripheral wall of interior guide pin bushing 8 is coaxial to be equipped with round holding ring groove 8b, set screw 13's screw portion is carrying out axial when spacing to interior guide pin bushing 8 and inserting, support and lean on holding ring groove 8b.
When the depth of the double chamfers is detected, as shown in fig. 2, the end face of the outer guide sleeve 14 is forcibly driven to abut against the end face of the orifice, so that the measurement datum is locked, the head (in a conical structure) of the measurement end block 9a of the measurement shaft 9 is clamped at the small end of the inner chamfer, then the measurement shaft 9 overcomes the elastic force of the first spring 10 to drive the movable plate 6 to upwardly abut against the measurement rod 15 of the dial indicator 1 on the right side, and the depth size from the end face of the orifice to the small end of the inner chamfer is displayed on the dial indicator 1 on the right side (the dial indicator 1 for measuring the inner chamfer); meanwhile, a measuring end 8a (head with a conical structure) of the inner guide sleeve 8 is clamped in the outer chamfer (can be at the large end of the inner chamfer), so that the movable plate 6 upwards supports the left dial indicator 1 (the dial indicator 1 for measuring the outer chamfer) and drives the left dial indicator 1, the guide rod bracket 16 of the left dial indicator 1 and the shaft sleeve fixing frame 4 to upwards deviate, and the depth dimension of the outer chamfer (namely the depth dimension from the small end of the outer chamfer to the end face of the orifice) is displayed on the left dial indicator 1.
While the preferred embodiments of the present invention have been described, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the general concept of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a two utensil of examining of chamfer degree of depth which characterized in that includes:
an outer guide sleeve (14), one end of which is in plane contact with the end surface of the orifice during detection;
the outer chamfer detection assembly is movably inserted into the outer guide sleeve (14) along the axial direction of the outer guide sleeve (14), and one end of the outer chamfer detection assembly abuts against an outer chamfer during detection;
the inner chamfer detection assembly is movably inserted into the outer chamfer detection assembly along the axial direction of the outer guide sleeve (14), and one end of the inner chamfer detection assembly abuts against the inner chamfer during detection;
the two dial indicators (1) are arranged at the other end of the outer guide sleeve (14), the end parts of measuring rods (15) of the two dial indicators (1) are respectively abutted against the other ends of the inner chamfer detection assembly and the outer chamfer detection assembly, and the depth sizes of the inner chamfer and the outer chamfer are respectively displayed;
wherein the inner chamfer detection assembly comprises a measuring shaft (9) coaxial with the outer guide sleeve (14); one shaft end of the measuring shaft (9) is coaxially provided with a measuring end block (9 a) of a rotary body structure, and the measuring end block (9 a) abuts against an outer chamfer when in detection; the other shaft end of the measuring shaft (9) is abutted against the end part of the measuring rod (15) of the corresponding dial indicator (1);
the outer chamfer detection assembly comprises an inner guide sleeve (8) coaxial with an outer guide sleeve (14), the measuring shaft (9) is axially movably inserted into the inner guide sleeve (8), a circle of shaft part convex ring (9 b) protruding along the radial direction is coaxially arranged on the shaft body of the measuring shaft (9), the shaft part convex ring (9 b) is positioned in a stepped hole formed in the inner guide sleeve (8), the measuring shaft (9) is coaxially sleeved with a first spring (10), one end of the first spring (10) is connected with the shaft part convex ring (9 b), and the other end of the first spring (10) is connected with the end part of the stepped hole of the inner guide sleeve (8);
the shaft end of the measuring shaft (9) which is abutted against the dial indicator (1) is fixedly connected with a movable plate (6), the movable plate (6) is movably arranged in the outer guide sleeve (14), and the movable plate (6) is directly abutted against the end part of a measuring rod (15) of the dial indicator (1);
one end of the inner guide sleeve (8) is provided with a measuring end head (8 a) coaxially and movably sleeved with a measuring end block (9 a), and the measuring end head (8 a) abuts against an outer chamfer of a measured hole during detection;
the other end of the inner guide sleeve (8) is abutted against the end part of the measuring rod (15) of the corresponding dial indicator (1).
2. The double chamfer depth gauge according to claim 1, wherein: the outer guide sleeve (14) is provided with a movable cavity (14 a) for accommodating the movable plate (6) to move in, and the movable cavity (14 a) penetrates through the outer guide sleeve (14) in a direction perpendicular to the axial direction of the outer guide sleeve (14).
3. The double chamfer depth gauge according to claim 1, wherein: the other end of the outer guide sleeve (14) is fixedly arranged as an upper cover (5) which forms the installation basis of the two dial indicators (1).
4. The double chamfer depth gauge according to claim 1, wherein:
the inner guide sleeve (8) is sleeved with a second spring (12), a measuring end (8 a) of the inner guide sleeve (8) is located in a stepped hole formed in the outer guide sleeve (14), and the measuring end (8 a) is elastically connected with the end face of the stepped hole in the outer guide sleeve (14) through the second spring (12).
5. The double chamfer depth gauge according to claim 1, wherein: two percentage table (1) all dispose the axle sleeve mount (4) of fixed its axle sleeve (3), wherein, the percentage table (1) that leans on inner guide pin bushing (8) still disposes guide arm support (16) that are used for installing its axle sleeve mount (4), guide arm support (16) activity is passed upper cover (5) and screw thread cross-under loose plate (6), and percentage table (1) for measuring inboard chamfer assembles upper cover (5) through its axle sleeve mount (4).
6. The double chamfer depth gauge according to claim 1, wherein: the outer guide sleeve (14) is in threaded connection with a limiting screw (13), and the tail end of a threaded part of the limiting screw (13) abuts against the outer peripheral wall of the inner guide sleeve (8) when the inner guide sleeve (8) is axially limited.
7. The double chamfer depth gauge according to claim 6, wherein: the periphery wall of interior guide pin bushing (8) is coaxial to be equipped with round holding ring groove (8 b), the screw thread portion of stop screw (13) is carrying out axial when spacing to interior guide pin bushing (8) and is inserting, support and lean on holding ring groove (8 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110307056.1A CN112833750B (en) | 2021-03-23 | 2021-03-23 | Double-chamfer depth checking fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110307056.1A CN112833750B (en) | 2021-03-23 | 2021-03-23 | Double-chamfer depth checking fixture |
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| Publication Number | Publication Date |
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| CN112833750A CN112833750A (en) | 2021-05-25 |
| CN112833750B true CN112833750B (en) | 2023-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110307056.1A Active CN112833750B (en) | 2021-03-23 | 2021-03-23 | Double-chamfer depth checking fixture |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5410818A (en) * | 1993-06-25 | 1995-05-02 | Copeland Corporation | Scroll chamfer gauge |
| CN203672273U (en) * | 2014-01-29 | 2014-06-25 | 广西玉柴机器股份有限公司 | Transmission spline taper hole measuring gauge |
| CN205561700U (en) * | 2016-02-25 | 2016-09-07 | 慈溪市汇丽机电有限公司 | Measurement device for hole chamfer diameter of section |
| CN106017262A (en) * | 2016-07-29 | 2016-10-12 | 中国航空工业集团公司西安飞行自动控制研究所 | Multi-step-size one-time measuring tool |
| CN212030409U (en) * | 2020-05-25 | 2020-11-27 | 天津晟宇汽车零部件有限公司 | Measuring device for simultaneously measuring inner diameter and depth of blind hole |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212421065U (en) * | 2020-07-16 | 2021-01-29 | 四川凌峰航空液压机械有限公司 | Precise inner orifice chamfer measuring clamp |
-
2021
- 2021-03-23 CN CN202110307056.1A patent/CN112833750B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5410818A (en) * | 1993-06-25 | 1995-05-02 | Copeland Corporation | Scroll chamfer gauge |
| CN203672273U (en) * | 2014-01-29 | 2014-06-25 | 广西玉柴机器股份有限公司 | Transmission spline taper hole measuring gauge |
| CN205561700U (en) * | 2016-02-25 | 2016-09-07 | 慈溪市汇丽机电有限公司 | Measurement device for hole chamfer diameter of section |
| CN106017262A (en) * | 2016-07-29 | 2016-10-12 | 中国航空工业集团公司西安飞行自动控制研究所 | Multi-step-size one-time measuring tool |
| CN212030409U (en) * | 2020-05-25 | 2020-11-27 | 天津晟宇汽车零部件有限公司 | Measuring device for simultaneously measuring inner diameter and depth of blind hole |
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| CN112833750A (en) | 2021-05-25 |
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