CN114485348A - Gap measuring device and gap detecting method using the same - Google Patents

Gap measuring device and gap detecting method using the same Download PDF

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Publication number
CN114485348A
CN114485348A CN202210051888.6A CN202210051888A CN114485348A CN 114485348 A CN114485348 A CN 114485348A CN 202210051888 A CN202210051888 A CN 202210051888A CN 114485348 A CN114485348 A CN 114485348A
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gap
measuring device
lug
double
large component
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CN114485348B (en
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张领伟
何磊
曹虎
陈传华
王丹阳
陈振
杨二豪
肖若昕
向明鑫
张友军
邓先能
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Chengdu Aircraft Industrial Group Co Ltd
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Chengdu Aircraft Industrial Group Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures

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  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The application discloses clearance measuring device and use device's clearance detection method, clearance measuring device wherein through setting up first umbelliform gear, first lead screw and first drive lever on the device body, rotate first drive lever and drive first umbelliform gear and then drive first lead screw and realize the clearance measurement. The gap measuring device is used for detecting the gap between the two lug large parts, so that the high-precision accurate and quick measurement of the double-lug connection gap of the large part of the airplane is realized, the quick assembly effect is achieved, the assembly efficiency is improved, the process of repeatedly assembling and disassembling the large part is avoided, the quality risk is reduced, and the problem of low assembly efficiency in the whole process caused by the fact that the large part needs to be repeatedly assembled, disassembled, measured and polished in the traditional method is solved.

Description

Gap measuring device and gap detecting method using the same
Technical Field
The application relates to the field of measurement of end face gaps of large-part narrow-distance double-lug bushings, in particular to a gap measurement device and a method for detecting the end face gaps of the large-part narrow-distance double-lug bushings.
Background
Aircraft wings, fuselages, etc. are also referred to as large components. In the butt joint process of the wing and the fuselage, a double-lug butt joint connection mode is adopted, more than ten butt joint positions are generally needed, in order to ensure that the final butt joint gap meets the design requirement, most of the butt joint position gaps are preferably ensured, the assembly error is accumulated to the last two butt joint positions, and the gap requirements of all the butt joint positions are ensured by repairing and polishing the end faces of double-lug bushings of the last two butt joint positions. When actual repair is polished, for accurately obtaining the polishing allowance and controlling the fit clearance, the two parts need to be repeatedly closed, the clearance is measured, the allowance is determined, the parts are removed and the end faces of the bushings are polished, and the parts are closed, the clearance is measured, the parts are removed and the end faces of the bushings are polished repeatedly.
In the fields of aviation, aerospace equipment and the like with high reliability requirements, butt joint gaps among large components need to be accurately controlled, and mutual friction among the components under the condition of high load is prevented, so that the reliability of assembly of the large components is improved. Under this condition, use conventional measuring tool can't realize the accurate measurement of clearance under the narrow space, need acquire actual clearance value through the mode that the material object is closing repeatedly, and then polish repeatedly, reach the accurate control of bush terminal surface clearance, assembly efficiency is low, intensity of labour is big.
Therefore, a gap measuring device and a gap detecting method using the same are needed to solve the above problems.
Disclosure of Invention
The main aim of this application provides a clearance measuring device and uses device's clearance detection method, aims at solving among the prior art conventional measuring tool and can't realize the clearance accuracy under the narrow space and measure, need acquire actual clearance value through the mode that the material object is closing repeatedly, and then polish repeatedly, reach the accurate control of bush terminal surface clearance, its assembly efficiency is low, technical problem that intensity of labour is big.
To achieve the above object, the present application provides a gap measuring device,
optionally, the gap measuring device comprises:
a device body; and the number of the first and second groups,
a first measurement assembly;
wherein the first measurement assembly comprises:
the first bevel gear is provided with a central hole with internal threads along the axis; the first bevel gear is rotationally connected to the device body by taking the axis as a rotating shaft, and the central hole is vertical to the side surface of the device body;
the first screw rod is in threaded connection with the central hole, so that the first bevel gear drives the first screw rod to move along the axis direction when rotating along the axis;
the first transmission rod is perpendicular to the first screw rod, one end of the first transmission rod is connected with a second umbrella-shaped gear, and the second umbrella-shaped gear is meshed with the first umbrella-shaped gear, so that the first transmission rod is rotated to drive the first umbrella-shaped gear to rotate along the axis.
Optionally, the gap measuring apparatus further includes: a first set screw; the first stop screw penetrates through the device body, is in threaded connection with the device body and extends out of the device body, and the penetrating direction of the first stop screw is perpendicular to the stretching direction of the first screw rod.
Optionally, one end of the first transmission rod, which is far away from the second bevel gear, is provided with a first knob with a gear.
Optionally, the gap measuring apparatus further includes: a second measurement assembly; the first measuring assembly is located on one side of the device body, the second measuring assembly is located on the other side of the device body, and the structure of the second measuring assembly is the same as that of the first measuring assembly.
Optionally, a scale is provided on an edge of the first knob.
Optionally, the device body is provided with chamfers around the device body.
Further, in order to achieve the above object, the present application also provides a gap detecting method using a gap measuring device, including the steps of:
pre-butting the first large component and the second large component, and calculating the polishing allowance by using a gap measuring device;
polishing the first large component based on the polishing allowance to obtain a polished first large component;
and butting the polished first large component with the gap measuring device, and detecting the end surface gap of the double-lug bushing of the first large component by using the gap measuring device.
Optionally, the step of pre-docking the first large part and the second large part, using a gap measuring device, and calculating the grinding allowance comprises:
pre-butting the first large component and the second large component, and measuring a gap h1 between the double-lug first bushing end face of the first large component and the single-lug boss of the second large component and a gap h2 between the double-lug second bushing end face of the first large component and the single-lug boss of the second large component;
and calculating the grinding allowance H based on a gap H1 between the double-lug first bushing end surface of the first large part and the single-lug boss of the second large part and a gap H2 between the double-lug second bushing end surface of the first large part and the single-lug boss of the second large part, wherein H is (alpha-H1) -0.05, and alpha is a technical requirement gap value.
Optionally, the step of polishing the first large component based on the polishing allowance to obtain a polished first large component further includes:
mounting the gap measuring device, extending the second measuring assembly out to be tightly attached to the end face of the double-lug second bushing of the first large component, enabling the extension amount of the second measuring assembly to be H2, and measuring the double-lug distance H1 of the first large component before polishing;
the step of butting the ground first large component with the gap measuring device, and detecting the end surface gap of the narrow-distance double-lug bushing of the first large component by using the gap measuring device comprises the following steps:
and butting the polished first large part with the gap measuring device, extending the second measuring assembly to be tightly attached to the end face of the double-lug second bushing of the first large part, enabling the extension amount of the second measuring assembly to be H2, measuring the double-lug distance H2 of the polished first large part, and comparing the difference between H1 and H2 with the value of H to detect the gap between the narrow-distance double-lug bushing end face of the first large part.
Optionally, the step of docking the ground first large component with the gap measuring device, and detecting with the gap measuring device that the first large component is a narrow-pitch binaural bushing end-face gap, includes:
and when the detection result is unqualified, repeating the step of polishing the first large component based on the polishing allowance to obtain the polished first large component and the step of butting the polished first large component with the gap measuring device and detecting the gap between the end faces of the double-lug bush of the first large component by using the gap measuring device until the detection is qualified.
The beneficial effect that this application can realize: this application carries out ears big parts narrow distance ears bush terminal surface clearance through using clearance measuring device, has replaced traditional installation monaural big parts to carry out ears big parts narrow distance ears bush terminal surface clearance and has measured. The gap measuring device can be used for replacing the assembly of the large part of the airplane, the distance between the two lug connecting gaps of the large part of the airplane can be directly measured, the polishing amount is determined, the high-precision accurate and quick measurement of the two lug connecting gaps of the large part of the airplane is realized, the quick repair is further realized, the quick assembly effect is achieved, the assembly efficiency is improved, the process of repeatedly installing and disassembling the large part is avoided, the quality risk is reduced, the problem that the assembly efficiency is low in the whole process due to the fact that the large part needs to be repeatedly butted, disassembled, measured and polished in the traditional method is solved.
Drawings
FIG. 1 is a schematic view of a gap measuring device mounted on a center pin according to an embodiment of the present disclosure;
FIG. 2 is a top view of one configuration of the gap measuring device of FIG. 1;
FIG. 3 is a top view of one configuration of a first measuring device of the gap measuring device of FIG. 1;
FIG. 4 is a top view of the device body of the gap measuring device of FIG. 1 and one configuration of a first measuring device;
FIG. 5 is a flow chart of one embodiment of a gap sensing method using a gap measuring device in one embodiment provided herein;
FIG. 6 is a flow chart of a refinement step in the process of FIG. 5 in which the first large component and the second large component are pre-butted, and the clearance measurement device is used to calculate the grinding allowance.
Reference numerals: the device comprises a device body 1, a first measuring device 2, a first umbrella-shaped gear 21, a first screw rod 22, a first transmission rod 23, a first stop screw 24, a first knob 25, a second umbrella-shaped gear 26, a second measuring device 3, a double-lug large component 4, a center pin 5 and a graduated scale 6.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Referring to fig. 1 and 4, a first embodiment of the present application provides a gap measuring device including: the device comprises a device body and a first measuring component. Wherein, first measuring component includes: first bevel gear, first lead screw and first transfer line. The first bevel gear is provided with a central hole with internal threads along the axis; the first bevel gear is rotatably connected to the device body by taking the axis as a rotating shaft, and the central hole is vertical to the side surface of the device body. The first screw rod is in threaded connection with the central hole, so that the first bevel gear drives the first screw rod to move along the axis direction when rotating along the axis. The first transmission rod is perpendicular to the first screw rod, one end of the first transmission rod is connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear, so that the first bevel gear is driven to rotate along the axis when the first transmission rod is rotated.
This application carries out ears big parts narrow distance ears bush terminal surface clearance through using clearance measuring device, has replaced traditional installation monaural big parts to carry out ears big parts narrow distance ears bush terminal surface clearance and has measured. The gap measuring device can be used for replacing the assembly of the large part of the airplane, the distance between the two lug connecting gaps of the large part of the airplane can be directly measured, the polishing amount is determined, the high-precision accurate and quick measurement of the two lug connecting gaps of the large part of the airplane is realized, the quick repair is further realized, the quick assembly effect is achieved, the assembly efficiency is improved, the process of repeatedly installing and disassembling the large part is avoided, the quality risk is reduced, the problem that the assembly efficiency is low in the whole process due to the fact that the large part needs to be repeatedly butted, disassembled, measured and polished in the traditional method is solved.
Referring to fig. 2 and 3, as an alternative embodiment, the gap measuring apparatus further includes: a first set screw; the first stop screw penetrates through the device body, is in threaded connection with the device body and extends out of the device body, and the penetrating direction of the first stop screw is perpendicular to the stretching direction of the first screw rod. The first stop screw is used for limiting the rotation of the first rotating rod, when the first rotating rod rotates to be incapable of rotating, namely the first lead screw is tightly attached to the inner wall of the double-lug large component, the first stop screw is rotated to enable the first stop screw to be tightly attached to the first rotating rod, the first rotating rod is prevented from rotating, and the stopping effect is achieved. The arrangement of the first stop screws can prevent the first rotating rod from being carelessly influenced by the outside to rotate, and the arrangement of the first stop screws improves the precision of the gap measuring device.
In this embodiment, a first knob with a gear is disposed at an end of the first transmission rod away from the second bevel gear. The first knob is located on the surface of the device body and used for assisting in rotating the first rotating rod. Compared with the mode that the first driving rod is directly rotated, the first rotary knob is arranged, so that a user can rotate the first driving rod more conveniently. The periphery of first knob is equipped with the gear, and the setting of gear can improve the roughness on first knob surface, and it is more convenient further to make the user rotate first rotation pole.
As an optional embodiment, the gap measuring apparatus further includes: a second measurement assembly. The first measuring component is positioned on one side of the device body, the second measuring component is positioned on the other side of the device body, and the structure of the second measuring component is the same as that of the first measuring component. The measuring components are arranged on the two sides of the device body, so that the gap measuring device can adapt to more scenes, and the applicability of the gap measuring device is improved.
In addition, be equipped with the scale on the edge of first knob, the registration of reading out the knob that setting up of scale can be faster, and then can be more convenient the extension length who reachs first lead screw. It can be understood that, in order to avoid the need to reset the first knob after each use, the device body is also provided with a graduated scale. The second measuring component is provided with a second knob, the second knob is arranged on one side of the first knob, and the graduated scale is located between the first knob and the second knob. The scale can be set to read more conveniently, and the reading precision is improved.
It can be understood that the periphery of the device body is provided with chamfers. The setting of chamfer can avoid the user to be by the device body fish tail. In this embodiment, the periphery of the device body can also be provided with a rounding, and the principle of the rounding is the same as that of the chamfer.
Compared with the prior art, the gap measuring device disclosed by the application has the following beneficial effects:
1. the utility model provides a clearance measuring device mutually supports through its first measuring component and the second measuring component that sets up, the big part of ears's ears inner wall is hugged closely respectively to first measuring component and second measuring component, be equipped with the gear scale and the scale of supplementary reading on the device body simultaneously, its measurement accuracy and reading precision are all higher than prior art, can realize the accurate rapid survey of high accuracy in big part ears joint gap of aircraft, in addition the clearance measuring device of this application installs conveniently, be connected with big part of ears through the core pin can, and then realize quick repair, reach the effect of rapid Assembly, the process of dismantling the big part because of installing repeatedly has been avoided, the quality risk has been reduced.
2. The utility model provides a clearance measuring device inner structure is gear drive, the one end of transfer line is connected with the second umbelliform gear, second umbelliform gear and umbelliform gear engagement for drive umbelliform gear during rotatory transfer line and rotate along the axle center, and then it is flexible to drive the lead screw, can control the flexible of lead screw through the knob on the rotating device body, and is easy and simple to handle, low cost, do not need external power supply, hydraulic pressure source etc. can realize the quick accurate measurement in clearance in the narrow space of large-scale part through manual regulation measuring device.
As an alternative embodiment, referring to fig. 5, the gap measuring device and the gap detecting method using the same according to the present application provide a gap detecting method using a gap measuring device, the gap detecting method using a gap measuring device including the steps of:
s10: and pre-butting the first large component and the second large component, and calculating the polishing allowance by using a gap measuring device. The first large component is a double-ear large component, and the second large component is a single-ear large component. The big monaural component needs to be inserted between two ears of the big binaural component, and the big binaural component needs to be polished normally due to high aviation precision, so that the gap between the big monaural component and the big binaural component can meet the requirement. The polishing allowance needs to be calculated before polishing.
S30: and polishing the first large part based on the polishing allowance to obtain the polished first large part. After the polishing allowance is calculated in the previous step, the double-lug large component is polished, one lug in the double-lug large component is selected as an end face under normal conditions, and the other lug is polished, so that the double lugs are prevented from being polished at the same time. The polishing method can better control the polishing allowance and is convenient for workers to operate.
S40: and butting the polished first large component with a gap measuring device, and detecting the end face gap of the double-lug bushing of the first large component by using the gap measuring device. After polishing, the gap measuring device is arranged between two ears of the big double-ear part through the center pin, and the first measuring assembly and the second measuring assembly are screwed out to measure the double-ear gap of the big double-ear part. The method can measure whether the binaural clearance of the binaural large part meets the requirement without butting the monaural large part.
Wherein, step S10: pre-butting the first large component and the second large component, using a gap measuring device, and calculating the polishing allowance, wherein the step of calculating the polishing allowance comprises the following steps:
s11: the first large component and the second large component are butted in advance, and a gap h1 between the double-lug first bushing end surface of the first large component and the single-lug boss of the second large component and a gap h2 between the double-lug second bushing end surface of the first large component and the single-lug boss of the second large component are measured.
S12: and calculating a grinding allowance H based on a gap H1 between the double-lug first bushing end surface of the first large part and the single-lug boss of the second large part and a gap H2 between the double-lug second bushing end surface of the first large part and the single-lug boss of the second large part, wherein H is (alpha-H1) -0.05, and alpha is a technical requirement gap value.
As an alternative embodiment, in step S10: pre-butting the first large component and the second large component, calculating the grinding allowance by using a gap measuring device, and then, performing step S30: based on the allowance of polishing, the first large part is polished, and the step S20 is further included before the polished first large part is obtained: and installing a gap measuring device, extending out of the second measuring assembly to be tightly attached to the end surface of the double-lug second bushing of the first large component, enabling the extension amount of the second measuring assembly to be H2, and measuring the double-lug distance H1 of the first large component before polishing.
Wherein, in step S40: butt joint the first big part after will polishing with clearance measuring device, use clearance measuring device to detect in the narrow pitch binaural bush terminal surface clearance of first big part, this application provides an optional implementation mode: the polished first large part is abutted with a gap measuring device, a second measuring assembly extends out to be tightly attached to the end face of the double-lug second bushing of the first large part, the extending amount of the second measuring assembly is H2, the double-lug distance H2 of the polished first large part is measured, and the gap between the narrow-distance double-lug bushing end face of the first large part is detected by comparing the difference between H1 and H2 with the value of H. It should be noted that h2 may be 0, that is, only the first measuring assembly is used to perform the measurement, and the protrusion amount of the second measuring device of the gap measuring device is set to 0. The above method is only used when only one ear of the binaural large part is to be ground. If two of the two lug large components are polished at the same time, the first measuring device and the second measuring device are required to be used for measuring at the same time.
Further, in the step S40, the method further includes the step S50: when the detection result is unqualified, the step of polishing the first large component based on the polishing allowance is repeated to obtain the polished first large component, the polished first large component is butted with a gap measuring device, and the step of detecting the end face gap of the double-lug bushing of the first large component by using the gap measuring device is carried out until the detection is qualified. Because there is often certain error in manual grinding, it is difficult to once only polish accurately in place, usually needs to polish many times, therefore step S50: when the detection result is unqualified, the step of polishing the first large component based on the polishing allowance is repeated to obtain the polished first large component, the polished first large component is butted with a gap measuring device, and the step of detecting the end face gap of the double-lug bushing of the first large component by using the gap measuring device is carried out until the detection is qualified. The polishing precision and the detection precision can be further ensured, and compared with the butt joint of the first large part and the second large part, the butt joint of the first large part and the gap measuring device is more convenient. It will be appreciated that the greater the number of detections, the greater the convenience of the above method over the prior art.
The main working principle of the application is as follows:
1. the circumference of the knob is equally divided into 20 gear scales, and the scale value of 1 gear is
Figure BDA0003473116140000091
The amount of knob rotation is denoted by E.
2. The first, the second and the third are connected by screw thread, the knob is rotated, the third rotates along with the knob, namely, the angular speeds of the first and the third are equal, omega1Is the angular velocity, omega, of the knob (r)3Angular velocity, omega, of bevel gear1=ω3
3. The rotation of the bevel gear III drives the rotation of the bevel gear IV, v3Linear velocity, v, of bevel gear4The linear velocity of the bevel gear (c) is equal to the linear velocity of the bevel gear (c)3=v4(ii) a Radius of bevel gear r3Radius of the bevel gear r4
4. The bevel gear is connected with the screw rod by the screw rod, the bevel gear rotates to drive the screw rod to rotate, and the angular speed of the bevel gear is omega4Angular velocity of the screw rod (v) is omega5The two angular velocities are the same4=ω5(ii) a The pitch of the screw rod is P.
5. The relationship between the telescopic movement L of the screw rod and the rotation scale of the knob is as follows:
Figure BDA0003473116140000092
Figure BDA0003473116140000101
namely:
Figure BDA0003473116140000102
(L represents the telescopic movement amount of the screw rod when the knob rotates the scale E, E represents the rotary scale of the knob, the circumference of the knob I is 2 pi, the circumference of the knob I is divided into 20 gear scales, and the unit scale of the knobCorresponding angle value of
Figure BDA0003473116140000103
P represents the pitch of the screw rod (v),
Figure BDA0003473116140000104
the moving distance of the screw rod (c) is shown under the condition of the unit rotation amount of the bevel gear (c); r is3The radius of the bevel gear (c) and the radius of the bevel gear (r) are r4
Figure BDA0003473116140000105
The ratio relation between the gear (c) and the gear (c) is shown. )
The purpose of this application is to big parts such as aircraft wing fuselage in traditional approach butt joint in-process, because of butt joint ears both sides bush terminal surface space is narrow, measuring tool is difficult to get into the bush terminal surface and measures, leads to carrying out the problem of large-scale part butt joint, dismantlement, measurement, polishing repeatedly. The application discloses clearance measuring device and use device's clearance detection method, adopt the device and method, can quick accurate measurement large-scale part butt joint clearance, easy and simple to handle, measurement accuracy is high, need not to remove the part repeatedly and closes the measurement, can shorten bush terminal surface cycle of polishing, improves big part assembly efficiency.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.

Claims (10)

1. A gap measuring device, characterized in that the gap measuring device comprises:
a device body; and the number of the first and second groups,
a first measurement assembly;
wherein the first measurement assembly comprises:
the first bevel gear is provided with a central hole with internal threads along the axis; the first bevel gear is rotationally connected to the device body by taking the axis as a rotating shaft, and the central hole is vertical to the side surface of the device body;
the first screw rod is in threaded connection with the central hole, so that the first bevel gear drives the first screw rod to move along the axis direction when rotating along the axis;
the first transmission rod is perpendicular to the first screw rod, one end of the first transmission rod is connected with a second umbrella-shaped gear, and the second umbrella-shaped gear is meshed with the first umbrella-shaped gear, so that the first transmission rod is rotated to drive the first umbrella-shaped gear to rotate along the axis.
2. The gap measuring device as set forth in claim 1, further comprising: a first set screw; the first stop screw penetrates through the device body, is in threaded connection with the device body and extends out of the device body, and the penetrating direction of the first stop screw is perpendicular to the stretching direction of the first screw rod.
3. The clearance measuring device of claim 1, wherein an end of the first transfer lever distal from the second bevel gear is provided with a geared first knob.
4. The gap measuring device as set forth in claim 3, further comprising: a second measurement assembly; the first measuring assembly is located on one side of the device body, the second measuring assembly is located on the other side of the device body, and the structure of the second measuring assembly is the same as that of the first measuring assembly.
5. The gap measuring device of claim 4, wherein a scale is provided on an edge of the first knob.
6. The gap measuring device of claim 1, wherein the device body is chamfered around the circumference of the device body.
7. A gap detecting method using the gap measuring apparatus according to any one of claims 4 to 6, comprising the steps of:
pre-butting the first large component and the second large component, and calculating the polishing allowance by using a gap measuring device;
polishing the first large component based on the polishing allowance to obtain a polished first large component;
and butting the polished first large component with the gap measuring device, and detecting the end surface gap of the double-lug bushing of the first large component by using the gap measuring device.
8. The method of claim 7, wherein the step of pre-docking the first major component and the second major component using a gap measuring device to calculate the sanding allowance comprises:
pre-butting the first large component and the second large component, and measuring a gap h1 between a double-lug first bushing end surface of the first large component and a single-lug boss of the second large component and a gap h2 between a double-lug second bushing end surface of the first large component and a single-lug boss of the second large component;
and calculating the grinding allowance H based on a gap H1 between the double-lug first bushing end surface of the first large part and the single-lug boss of the second large part and a gap H2 between the double-lug second bushing end surface of the first large part and the single-lug boss of the second large part, wherein H is (alpha-H1) -0.05, and alpha is a technical requirement gap value.
9. The method of claim 7, wherein said step of grinding said first major component based on said grinding allowance to obtain a ground first major component further comprises:
mounting the gap measuring device, extending the second measuring assembly to be tightly attached to the end face of the double-lug second bushing of the first large component, enabling the extension amount of the second measuring assembly to be H2, and measuring the double-lug distance H1 of the first large component before polishing;
the step of butting the ground first large component with the gap measuring device, and detecting the end surface gap of the narrow-distance double-lug bushing of the first large component by using the gap measuring device comprises the following steps:
and butting the polished first large part with the gap measuring device, extending the second measuring assembly to be tightly attached to the end face of the double-lug second bushing of the first large part, enabling the extension amount of the second measuring assembly to be H2, measuring the double-lug distance H2 of the polished first large part, and comparing the difference between H1 and H2 with the value of H to detect the gap between the narrow-distance double-lug bushing end face of the first large part.
10. The method of claim 7 wherein the step of interfacing the ground first major component with the gap measuring device, detecting with the gap measuring device that the first major component is a narrow-pitch binaural bushing end-face gap, comprises:
and when the detection result is unqualified, the step of polishing the first large component based on the polishing allowance to obtain the polished first large component and the step of butting the polished first large component with the gap measuring device and detecting the end face gap of the double-lug bushing of the first large component by using the gap measuring device are repeated until the detection is qualified.
CN202210051888.6A 2022-01-17 2022-01-17 Gap measuring device and gap detecting method using the same Active CN114485348B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240742A (en) * 1999-02-22 2000-09-05 Koyo Mach Ind Co Ltd Rotation gap measuring machine for continuously variable transmission
CN212871050U (en) * 2020-09-18 2021-04-02 云南省地质调查院 Adjustable measuring device for surrounding rock fracture
CN112747657A (en) * 2021-02-05 2021-05-04 丁珍 Bearing clearance detection system and detection method thereof
CN112784364A (en) * 2021-04-12 2021-05-11 成都飞机工业(集团)有限责任公司 Method for calculating machining allowance of aircraft wing body joint
CN214892946U (en) * 2021-05-28 2021-11-26 无锡职业技术学院 Device for detecting hole site by zero-clearance machinery
CN215290299U (en) * 2020-12-09 2021-12-24 云南励砺建筑工程有限公司 Detection apparatus for foundation engineering construction sediment thickness

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240742A (en) * 1999-02-22 2000-09-05 Koyo Mach Ind Co Ltd Rotation gap measuring machine for continuously variable transmission
CN212871050U (en) * 2020-09-18 2021-04-02 云南省地质调查院 Adjustable measuring device for surrounding rock fracture
CN215290299U (en) * 2020-12-09 2021-12-24 云南励砺建筑工程有限公司 Detection apparatus for foundation engineering construction sediment thickness
CN112747657A (en) * 2021-02-05 2021-05-04 丁珍 Bearing clearance detection system and detection method thereof
CN112784364A (en) * 2021-04-12 2021-05-11 成都飞机工业(集团)有限责任公司 Method for calculating machining allowance of aircraft wing body joint
CN214892946U (en) * 2021-05-28 2021-11-26 无锡职业技术学院 Device for detecting hole site by zero-clearance machinery

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