CN119268520A - A comparative measurement tool and method for the center distance of bearing holes of base components - Google Patents
A comparative measurement tool and method for the center distance of bearing holes of base components Download PDFInfo
- Publication number
- CN119268520A CN119268520A CN202411550612.8A CN202411550612A CN119268520A CN 119268520 A CN119268520 A CN 119268520A CN 202411550612 A CN202411550612 A CN 202411550612A CN 119268520 A CN119268520 A CN 119268520A
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- gauge
- centering shaft
- measuring
- hole
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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
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
本发明公开了一种用于底座组件轴瓦孔中心距离的对比测量检具及方法。包括检具座(1)，检具座(1)上安装有长定心轴(2)和短定心轴(3)，长定心轴、短定心轴头端均设有锥面段，锥面段上套有定位涨套(4)，锥面段头端穿出定位胀套(4)与涨紧螺母(5)螺纹连接；长定心轴(2)尾端穿过检具座(1)与限位组件(6)连接，短定心轴(3)尾端穿透检具座(1)，检具座(1)侧壁上设有测量过孔(7)，测量过孔(7)内放置有测量表(8)，测量表(8)的测量头能够穿过测量过孔(7)抵靠在短定心轴(3)尾端侧壁上；所述的短定心轴(3)与检具座(1)间隙配合。本发明能够高效准确检测底座组件轴瓦孔中心距离是否合格，以解决生产现场的快速测量问题。
The present invention discloses a comparative measurement gauge and method for the center distance of the bearing hole of a base assembly. The gauge comprises a gauge seat (1), on which a long centering shaft (2) and a short centering shaft (3) are installed, the head ends of the long centering shaft and the short centering shaft are both provided with a conical section, a positioning expansion sleeve (4) is sleeved on the conical section, the head end of the conical section passes through the positioning expansion sleeve (4) and is threadedly connected with a tension nut (5); the tail end of the long centering shaft (2) passes through the gauge seat (1) and is connected with a limit assembly (6), the tail end of the short centering shaft (3) passes through the gauge seat (1), a measuring through hole (7) is provided on the side wall of the gauge seat (1), a measuring gauge (8) is placed in the measuring through hole (7), and the measuring head of the measuring gauge (8) can pass through the measuring through hole (7) and abut against the side wall of the tail end of the short centering shaft (3); the short centering shaft (3) and the gauge seat (1) are clearance-matched. The present invention can efficiently and accurately detect whether the center distance of the bearing bush holes of the base assembly is qualified, so as to solve the problem of rapid measurement at the production site.
Description
Technical Field
The invention belongs to the technical field of design of process equipment measuring fixtures, and particularly relates to a comparison measuring gauge and method for center distance of a bearing bush hole of a base assembly.
Background
Two bearing bush holes are arranged on a base component of an aviation lubricating oil pump product, and the center distance dimension precision of the two bearing bush holes is required to be high, and the tolerance is 0.02. If the universal measuring tool is adopted for measurement, the sizes of a plurality of elements are required to be measured and calculated, and the accumulated error is larger. If other electronic metering instruments and pneumatic meters are adopted for detection, the requirements of measurement at a processing station cannot be met. For the foregoing reasons, there is a need for a convenient and reliable measurement gauge for use in a processing station.
The invention patent with the application number of CN202311845346.7 and the publication number of CN117804312A discloses a tool and a method for measuring the center distance of a slewing bearing mounting hole, which comprises a measuring rule body, a first rule head assembly (comprising a first moving block and a first limiting clamping piece connected with the first moving block), a second rule head assembly (comprising a second moving block and a second limiting clamping piece connected with the second moving block), a first spring, a second spring, a measuring meter and a measuring meter fixing piece. During measurement, the first limiting clamping piece is matched with one mounting hole, the second limiting clamping piece is matched with the other mounting hole, and the measuring end of the measuring meter is abutted to the second limiting clamping piece so as to calibrate the center distance between the two mounting holes. The principle of the tool is that two steel balls are arranged in an orifice, the center positions of the two holes are simulated, the tool is clamped on the two steel balls, and the center distance change value is read from a dial indicator. It can be seen that the machining condition of the orifice of the bearing mounting hole has a great influence on the measurement result, and the tool and the method are not applicable to unit products.
Disclosure of Invention
The invention aims to provide a contrast measurement gauge and a contrast measurement method for the center distance of a bearing bush hole of a base component. The invention can efficiently and accurately detect whether the center distance of the bearing bush hole of the base component is qualified or not, so as to solve the problem of rapid measurement on the production site.
The technical scheme is that the contrast measurement gauge for the center distance of the bearing bush hole of the base component comprises a gauge seat, a long centering shaft and a short centering shaft are arranged on the gauge seat, conical surface sections are arranged at the head ends of the long centering shaft and the short centering shaft, a positioning expansion sleeve is sleeved on the conical surface sections, the head ends of the conical surface sections penetrate through the positioning expansion sleeve and are in threaded connection with an expansion nut, the tail ends of the long centering shaft penetrate through the gauge seat and are connected with a limiting component, the tail ends of the short centering shaft penetrate through the gauge seat, a measurement through hole is formed in the side wall of the gauge seat, a measuring meter is placed in the measurement through hole, a measuring head of the measuring meter can penetrate through the measurement through hole and abut against the side wall of the tail end of the short centering shaft, and the short centering shaft is in clearance fit with the gauge seat.
In the comparison measurement gauge for the center distance of the bearing bush hole of the base assembly, a spring is arranged between the tail end of the conical surface section and the positioning expansion sleeve.
In the comparison measurement gauge for the center distance of the bearing bush hole of the base assembly, the gauge seat is provided with the set screw for fixing the measuring meter in the measuring through hole.
In the comparison measurement gauge for the center distance of the bearing bush hole of the base assembly, the limiting assembly comprises 1 movable bearing and 2 fixed bearings which are positioned on the bottom surface of the gauge seat, the 3 bearings are arranged in a triangular mode and can be abutted against the side wall of the tail end of the long centering shaft, the movable bearing is connected with the driving assembly, and the movable bearing can be driven by the driving assembly to move along the radial direction of the long centering shaft. And a protective cover is sleeved outside each bearing.
In the contrast measurement gauge for the center distance of the bearing bush hole of the base assembly, the driving assembly comprises a sliding plate capable of sliding in the gauge seat along the radial direction of the long centering shaft and an adjusting rod in threaded connection with the side wall of the gauge seat, a linkage groove is formed in the outer end of the sliding plate, a linkage boss is arranged on the rod body of the adjusting rod, the linkage groove is connected with the linkage boss, and the inner end of the sliding plate is connected with the movable bearing.
The comparison measurement gauge for the center distance of the bearing bush hole of the base assembly further comprises a pair of centering holes matched with the long centering shaft and the short centering shaft in position.
In the comparison measurement gauge for the center distance of the bearing bush hole of the base assembly, the centering hole is internally provided with the bushing.
The measuring method of the contrast measuring gauge for the center distance of the bearing bush hole of the base component comprises the steps of confirming the long centering shaft and the measuring table position before measurement, fixing the long centering shaft by using the limiting component after confirmation, synchronously fixing the measuring table position, finishing calibration, correspondingly mounting the bearing bush hole of the base component to be measured on the positioning expansion sleeve after calibration, screwing the expansion nut to open the positioning expansion sleeve on the corresponding bearing bush Kong Nazhang, fixing the base component to be measured with the long centering shaft and the short centering shaft, enabling the base component to be measured to swing around the long centering shaft, and observing whether the pointer indication value of the measuring table is within a required tolerance range, thus finishing the detection of the base component.
The measuring method for the contrast measuring gauge for the center distance of the bearing bush hole of the base component comprises the following steps of correspondingly inserting a long centering shaft into a centering hole of a gauge fitting, screwing up a tensioning nut to enable an outer cylindrical surface of a positioning tensioning sleeve to be in gapless fit with the centering hole of the gauge fitting, correspondingly inserting the long centering shaft into a gauge seat after combination, then clamping the tail end of the long centering shaft by using a limiting component, correspondingly penetrating a measuring gauge through a measuring through hole to enable a measuring head to abut against the side wall of the tail end of the short centering shaft, enabling the gauge fitting to swing around the long centering shaft, observing whether the pressing expression condition of the measuring head of the measuring gauge is proper, directly aligning the zero position of the measuring gauge, otherwise, adjusting the position of the measuring head of the measuring gauge, aligning the zero position of the dial gauge, withdrawing the gauge fitting after zero alignment is completed, and finishing the calibration.
The invention has the advantages that the application of the comparison measuring gauge for the center distance of the bearing bush holes of the base component well solves the problem of detecting the high-precision center distance of the two bearing bush holes on the base component of an aviation lubricating oil pump product, and is economical and practical, and the measuring precision is high, and can reach 0.01mm.
Drawings
FIG. 1 is a perspective cross-sectional view of the present invention;
FIG. 2 is a front view of the present invention;
Fig. 3 is a bottom view of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort are intended to fall within the scope of the present invention.
Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention. The present invention is in no way limited to any particular arrangement and method set forth below, but rather covers any adaptations, alternatives, and modifications of structure, method, and device without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other, and the embodiments may be referred to and cited with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Example 1. The comparison measurement gauge for the center distance of the bearing bush hole of the base component comprises a gauge seat 1, a long centering shaft 2 and a short centering shaft 3 are arranged on the gauge seat 1, conical surface sections are arranged at the head ends of the long centering shaft and the short centering shaft, a positioning expansion sleeve 4 is sleeved on the conical surface sections, the head ends of the conical surface sections penetrate through the positioning expansion sleeve 4 and are in threaded connection with a tension nut 5, the tail end of the long centering shaft 2 penetrates through the gauge seat 1 and is connected with a limiting component 6, the tail end of the short centering shaft 3 penetrates through the gauge seat 1, a measurement through hole 7 is formed in the side wall of the gauge seat 1, a measuring meter 8 is arranged in the measurement through hole 7, a measuring head of the measuring meter 8 can penetrate through the measurement through hole 7 and abut against the side wall of the tail end of the short centering shaft 3, and the short centering shaft 3 is in clearance fit with the gauge seat 1.
A spring 9 is arranged between the tail end of the conical surface section and the positioning expansion sleeve 4.
The gauge seat 1 is provided with a set screw 10 for fixing the gauge 8 in the measurement via hole 7. The measuring meter 8 is a measuring and reading meter, and can be a dial gauge or a dial indicator. It is inserted into the measuring through hole 7, and the dial gauge 18 is fastened or unfastened by the set screw 10 screwed into the screw hole of the gauge stand 1. Dial gauge 18 may be a dial gauge according to the size tolerance requirement.
The limiting assembly 6 comprises 1 movable bearing 6.1 and 2 fixed bearings 6.2,3 which are positioned on the bottom surface of the gauge seat 1, wherein the bearings are arranged in a triangular mode and can be abutted against the side wall of the tail end of the long centering shaft 2, the movable bearing 6.1 is connected with the driving assembly, and the movable bearing 6.1 can be driven by the driving assembly to move along the radial direction of the long centering shaft 2. The outer parts of the bearings are sleeved with a protective cover 6.7. The three bearings realize clamping and positioning of the long positioning mandrel 4 according to the principle of three-point (line) rounding (column).
The driving assembly comprises a sliding plate 6.3 capable of sliding in the gauge seat 1 along the radial direction of the long centering shaft 2 and an adjusting rod 6.4 in threaded connection with the side wall of the gauge seat 1, wherein a linkage groove 6.5 is formed in the outer end of the sliding plate 6.3, a linkage boss 6.6 is arranged on the rod body of the adjusting rod 6.4, the linkage groove 6.5 is connected with the linkage boss 6.6, and the inner end of the sliding plate 6.3 is connected with the movable bearing 6.1. The driving process is as follows, the adjusting rod 6.4 is rotated to enable the adjusting rod 6.4 to move along the axial direction, the sliding plate 6.3 is driven to move along the radial direction of the long centering shaft 2 under the cooperation of the linkage boss 6.6 and the linkage groove 6.5, and then the movable bearing 6.1 is driven to move, so that the movable bearing 6.1 and the fixed bearing 6.2 clamp/release the side wall of the tail end of the long centering shaft 2.
The aforementioned contrast measurement gauge for the center distance of the bearing bush hole of the base assembly further comprises a pair of centering holes matched with the long centering shaft and the short centering shaft in position, and the pair of centering holes are formed in the pair of centering members 11.
A bushing 12 is provided in the centering hole. This structure can slow down centering hole wearing and tearing.
The measuring method of the contrast measuring gauge for the center distance of the bearing bush hole of the base component comprises the steps of confirming positions of the long centering shaft 2 and the measuring gauge 8 before measuring, fixing the long centering shaft 2 by using the limiting component 6 after confirming, synchronously fixing the positions of the measuring gauge 8, finishing the correction, correspondingly mounting the bearing bush hole of the base component to be measured on the positioning expansion sleeve 4 after the correction, screwing the tightening nut 5 to open the positioning expansion sleeve 4 on the corresponding bearing bush Kong Nazhang, fixing the base component to be measured with the long centering shaft and the short centering shaft, enabling the base component to be measured to swing around the long centering shaft 2, and observing whether the pointer indication value of the measuring gauge 8 is within a required tolerance range, thus finishing the detection of the base component.
The calibration process comprises the steps of correspondingly inserting a long centering shaft into a centering hole of a centering piece 11, screwing up a tensioning nut 5 to enable the outer cylindrical surface of a positioning expansion sleeve 4 to be in clearance-free fit with the centering hole of the centering piece 11, correspondingly inserting the long centering shaft into a gauge seat 1 after the assembly, clamping the tail end of the long centering shaft 2 by a limiting component 6, correspondingly penetrating a measuring gauge 8 through a measuring through hole 7 to enable a measuring head to abut against the side wall of the tail end of the short centering shaft 3, enabling the centering piece 9 to swing around the long centering shaft, observing whether the pressing condition of the measuring head of the measuring gauge 8 is proper, directly aligning the measuring gauge 8 with a zero position if proper, otherwise, adjusting the position of the measuring head of the measuring gauge 8, aligning a dial gauge 18 with the zero position, and removing the centering piece 11 after the zero alignment is completed, and completing the calibration.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention, but the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and these modifications or substitutions should be included in the scope of the present invention.
Claims (9)
1. The contrast measurement gauge for the center distance of the bearing bush hole of the base component is characterized by comprising a gauge seat (1), wherein a long centering shaft (2) and a short centering shaft (3) are arranged on the gauge seat (1), conical surface sections are arranged at the head ends of the long centering shaft and the short centering shaft, a positioning expansion sleeve (4) is sleeved on the conical surface sections, the head ends of the conical surface sections penetrate through the positioning expansion sleeve (4) and are in threaded connection with a tensioning nut (5), the tail end of the long centering shaft (2) penetrates through the gauge seat (1) to be connected with a limiting component (6), the tail end of the short centering shaft (3) penetrates through the gauge seat (1), a measuring through hole (7) is formed in the side wall of the gauge seat (1), a measuring meter (8) is arranged in the measuring through hole (7), a measuring head of the measuring meter (8) can penetrate through the measuring through hole (7) to be abutted to the side wall of the tail end of the short centering shaft (3), and the short centering shaft (3) is in clearance fit with the gauge seat (1).
2. The contrast measurement gauge for the center distance of the bearing bush hole of the base assembly according to claim 1, wherein a spring (9) is arranged between the tail end of the conical surface section and the positioning expansion sleeve (4).
3. The comparative measurement gauge for the center distance of a bushing hole of a base assembly according to claim 1, wherein a set screw (10) is provided on the gauge base (1) for fixing a gauge (8) in a measurement via hole (7).
4. The comparison measurement gauge for the center distance of the bearing bush hole of the base assembly according to claim 1, wherein the limiting assembly (6) comprises 1 movable bearing (6.1) and 2 fixed bearings (6.2) which are positioned on the bottom surface of the gauge base (1), the 3 bearings are arranged in a triangular mode and can be abutted against the tail end side wall of the long centering shaft (2), the movable bearing (6.1) is connected with the driving assembly, and the movable bearing (6.1) can be driven to move along the radial direction of the long centering shaft (2) through the driving assembly. A shield (6.7) is sleeved outside each bearing.
5. The contrast measurement gauge for the center distance of the bearing bush hole of the base assembly according to claim 4, wherein the driving assembly comprises a sliding plate (6.3) capable of sliding in the gauge seat (1) along the radial direction of the long centering shaft (2), and an adjusting rod (6.4) in threaded connection with the side wall of the gauge seat (1), a linkage groove (6.5) is formed in the outer end of the sliding plate (6.3), a linkage boss (6.6) is formed in the rod body of the adjusting rod (6.4), the linkage groove (6.5) is connected with the linkage boss (6.6), and the inner end of the sliding plate (6.3) is connected with the movable bearing (6.1).
6. A comparison measuring gauge for the center distance of a bearing bush hole of a base assembly according to claim 1, further comprising a pair of centering holes matched with the positions of the long centering shaft and the short centering shaft are arranged on the pair of centering holes (11) of the pair of centering members (11).
7. The contrast measurement gauge for the center distance of a bushing hole of a base assembly according to claim 6, wherein a bushing (12) is provided in the centering hole.
8. A measuring method for a contrast measuring gauge for the center distance of a bearing bush hole of a base component according to any one of claims 1 to 7 is characterized in that positions of a long centering shaft (2) and a measuring meter (8) are confirmed before measurement, the long centering shaft (2) is fixed by using a limiting component (6) after confirmation, the positions of the measuring meter (8) are synchronously fixed, calibration is completed, after calibration, a bearing bush hole of the base component to be measured is correspondingly arranged on a positioning expansion sleeve (4), a positioning expansion sleeve (4) is screwed down, so that the positioning expansion sleeve (4) is opened at a corresponding bearing bush Kong Nazhang, the base component to be measured is fixed with the long centering shaft and the short centering shaft, at the moment, the base component to be measured is swung around the long centering shaft (2), and whether a pointer indication value of the measuring meter (8) is within a required tolerance range is observed, so that the detection of the base component is completed.
9. The method for measuring the contrast measurement gauge for the center distance of the bearing bush hole of the base assembly according to claim 8, wherein the calibration process comprises the steps of correspondingly inserting a long centering shaft into the centering hole of the gauge (11), tightening the tensioning nut (5) to enable the outer cylindrical surface of the positioning tensioning sleeve (4) to be in clearance fit with the centering hole of the gauge (11) to be combined, correspondingly inserting the long centering shaft (2) into the gauge seat (1) after the combination, clamping the tail end of the long centering shaft by the limiting assembly (6), correspondingly penetrating the gauge (8) through the measuring through hole (7) to enable the measuring head to abut against the tail end side wall of the short centering shaft (3), enabling the gauge (9) to swing around the long centering shaft, observing whether the pressing expression condition of the measuring head of the gauge (8) is proper or not, directly aligning the gauge (8), otherwise adjusting the position of the gauge (18) to be aligned to be zero, and withdrawing the gauge (11) after the zero alignment is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411550612.8A CN119268520A (en) | 2024-11-01 | 2024-11-01 | A comparative measurement tool and method for the center distance of bearing holes of base components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411550612.8A CN119268520A (en) | 2024-11-01 | 2024-11-01 | A comparative measurement tool and method for the center distance of bearing holes of base components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119268520A true CN119268520A (en) | 2025-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411550612.8A Pending CN119268520A (en) | 2024-11-01 | 2024-11-01 | A comparative measurement tool and method for the center distance of bearing holes of base components |
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| Country | Link |
|---|---|
| CN (1) | CN119268520A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202432968U (en) * | 2011-11-30 | 2012-09-12 | 长城汽车股份有限公司 | Inspection device for motor cylinder and pin hole center distance on cylinder cover |
| CN204514240U (en) * | 2014-12-17 | 2015-07-29 | 薛飞 | Mechanical type fixation workpiece centre distance appliance special for detecting |
| CN106152916A (en) * | 2016-08-31 | 2016-11-23 | 无锡富瑞德测控仪器股份有限公司 | A kind of band table center distance check tool |
| CN208720963U (en) * | 2018-08-01 | 2019-04-09 | 成都斯太尔动力机械有限公司 | A kind of screw hole detection device for bearing cap |
| CN117804312A (en) * | 2023-12-29 | 2024-04-02 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Tool and method for measuring center distance of slewing bearing mounting holes |
-
2024
- 2024-11-01 CN CN202411550612.8A patent/CN119268520A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202432968U (en) * | 2011-11-30 | 2012-09-12 | 长城汽车股份有限公司 | Inspection device for motor cylinder and pin hole center distance on cylinder cover |
| CN204514240U (en) * | 2014-12-17 | 2015-07-29 | 薛飞 | Mechanical type fixation workpiece centre distance appliance special for detecting |
| CN106152916A (en) * | 2016-08-31 | 2016-11-23 | 无锡富瑞德测控仪器股份有限公司 | A kind of band table center distance check tool |
| CN208720963U (en) * | 2018-08-01 | 2019-04-09 | 成都斯太尔动力机械有限公司 | A kind of screw hole detection device for bearing cap |
| CN117804312A (en) * | 2023-12-29 | 2024-04-02 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Tool and method for measuring center distance of slewing bearing mounting holes |
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