Insert installation gap measuring device and method

Abstract

The present application relates to the technical field of gap measurement, and particularly relates to an embedded part installation gap measuring device and method. The device comprises a tension bolt and a measuring unit. The tension bolt comprises a bolt head and a screw rod. A first abutting plane is arranged on the side of the bolt head close to the screw rod. A second abutting plane is arranged on the side of the bolt head away from the screw rod. A measuring groove is arranged on the side wall of the bolt head and communicates with the first abutting plane and the second abutting plane. The tension bolt is used to abut against the end face of the installation hole through the first abutting plane, and connect the embedded part embedded in the installation hole through the screw rod, so as to apply a pre-tightening force to the embedded part towards the outside of the installation hole. In the state that the embedded part applies the pre-tightening force, the measuring needle of the measuring unit penetrates through the measuring groove and abuts against the end face of the installation hole and the end face of the embedded part respectively. The gap between the end face of the embedded part and the end face of the carbon fiber installation hole is measured in the state of torsion tightening. The working condition of the metal embedded part and the carbon fiber part is simulated, and the gap of the embedded part after installation is effectively measured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gap measurement, in particular to a device and method for measuring the installation gap of an insert. BACKGROUND

[0002] In the assembly process of a carbon fiber framework, a metal insert is assembled into the framework through a narrow space, and then the gap size between the end face of the insert and the end face of the installation hole needs to be measured in a tension state. However, the space on the installation side of the insert is narrow, and there is no space for pressing, so it is difficult to tension the insert and apply a specified torque, resulting in difficulty in measuring the gap size between the end face of the insert and the end face of the installation hole. SUMMARY

[0003] The present application provides a device and method for measuring the installation gap of an insert, to solve the problem of difficulty in tensioning the insert and measuring the gap size between the end face of the insert and the end face of the installation hole in the prior art.

[0004] The present application provides a device for measuring the installation gap of an insert, comprising:

[0005] The tensioning bolt comprises a bolt head and a screw rod, a first abutting plane is arranged on the side of the bolt head close to the screw rod, and a second abutting plane is arranged on the side of the bolt head away from the screw rod; a measuring groove is formed in the side wall of the bolt head and communicates with the first abutting plane and the second abutting plane;

[0006] The tensioning bolt is configured to abut against the end face of the installation hole through the first abutting plane, and connect the insert embedded in the installation hole through the screw rod, so as to apply a pre-tightening force to the insert;

[0007] The measuring unit comprises a measuring instrument and a measuring needle, and the measuring needle is used to abut against the end face of the installation hole and the end face of the insert through the measuring groove, so as to measure the distance between the end face of the insert and the end face of the installation hole.

[0008] According to an embodiment of the present application, in the installed state of the tensioning bolt, the measuring groove is directly opposite the end face of the installation hole and the end face of the insert.

[0009] According to an embodiment of the present application, the extension direction of the measuring groove is parallel to the axial direction of the screw rod.

[0010] According to an embodiment of the present application, a plurality of measuring grooves are arranged, and the plurality of measuring grooves are uniformly arranged along the peripheral wall of the bolt head.

[0011] According to an embodiment of the present application, an inner hexagonal hole is arranged at the center position of the second abutting plane.

[0012] According to an embodiment of the present application, the measuring instrument further comprises a watchcase, and the measuring needle is connected to the watchcase.

[0013] According to an embodiment of the present application, the watchcase has a measuring reference surface, and the measuring needle is connected perpendicularly to the measuring reference surface, and the measuring reference surface is used to abut against the second abutment surface.

[0014] According to an embodiment of the present application, the measuring reference surface has magnetism, and is used to be attracted to the second abutment surface.

[0015] The present application further provides a method for measuring an insert installation gap, based on the insert installation gap measuring device as described above, comprising:

[0016] applying a pre-tightening force to the insert by the tensioning bolt, the pre-tightening force being directed outwardly from the installation hole;

[0017] measuring a first distance by the measuring unit, the first distance being a distance from the second abutment surface to the insert end surface;

[0018] measuring a second distance by the measuring unit, the second distance being a distance from the second abutment surface to the installation hole end surface;

[0019] obtaining the distance between the insert end surface and the installation hole end surface by the difference between the first distance and the second distance.

[0020] According to an embodiment of the present application, the step of measuring the first distance by the measuring unit comprises:

[0021] abutting the measuring reference surface of the watchcase against the second abutment surface, abutting the measuring needle against the insert end surface, and obtaining a first length value of the measuring needle;

[0022] the step of measuring the second distance by the measuring unit comprises:

[0023] abutting the measuring reference surface of the watchcase against the second abutment surface, abutting the measuring needle against the installation hole end surface, and obtaining a second length value of the measuring needle.

[0024] The insert installation gap measuring device provided by the application comprises a tensioning bolt and a measuring unit, the tensioning bolt comprises a bolt head and a screw rod, a first abutting plane is arranged on the side of the bolt head close to the screw rod, and a second abutting plane is arranged on the side of the bolt head away from the screw rod; a measuring groove is arranged in the side wall of the bolt head and communicates with the first abutting plane and the second abutting plane; the tensioning bolt is used for abutting against the end face of the mounting hole through the first abutting plane and connecting the insert embedded in the mounting hole through the screw rod, so as to apply a pre-tightening force to the insert towards the outside of the mounting hole; in the state that the insert applies the pre-tightening force, the measuring needle of the measuring unit penetrates through the measuring groove and abuts against the end face of the mounting hole and the end face of the insert respectively, so as to measure the distance between the end face of the insert and the end face of the mounting hole. The device can realize the tensioning of the insert in a narrow space and can realize the tensioning of different torsion forces; the gap between the end face of the insert and the end face of the carbon fiber mounting hole is measured in the state of torsion tensioning, the working condition of the metal insert and the carbon fiber mounting is simulated, and the gap of the installed insert is effectively measured.

[0025] The insert installation gap measuring method provided by the application also has all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0027] Figure 1 FIG. 1 is a structural schematic diagram of the insert installation gap measuring device provided by the application;

[0028] Figure 2 FIG. 2 is a tensioning bolt installation state diagram provided by the application;

[0029] Figure 3 FIG. 3 is one of the measurement state diagrams of the insert installation gap measuring device provided by the application;

[0030] Figure 4 FIG. 4 is the other of the measurement state diagrams of the insert installation gap measuring device provided by the application;

[0031] Figure 5 FIG. 5 is a step flow diagram of the insert installation gap measuring method provided by the application.

[0032] REFERENCE SIGNS:

[0033] 10, tensioning bolt; 110, bolt head; 111, first abutting plane; 112, second abutting plane; 113, measuring groove; 114, internal hexagonal hole; 120, screw rod;

[0034] 20, measuring unit; 210, measuring needle; 220, measuring instrument; 230, meter base;

[0035] 30, insert; 310, insert end face; 320, bolt hole;

[0036] 40, mounting hole; 410, mounting hole end face;

[0037] D, first length value of measuring needle; d, second length value of measuring needle. DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0039] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0042] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0043] The specific embodiments of the present application are described below in conjunction with Figures 1 to 5 The specific embodiments of the present application are described below in conjunction with

[0044] Please refer to Figure 1 , the embodiments of the present application provide an insert installation gap measuring device, which comprises a tensioning bolt 10 and a measuring unit 20.

[0045] Wherein, the tensioning bolt 10 comprises a bolt head 110 and a screw rod 120, the first abutting plane 111 is arranged on the side of the bolt head 110 close to the screw rod 120, and the second abutting plane 112 is arranged on the side of the bolt head 110 away from the screw rod 120; the first abutting plane 111 and the second abutting plane 112 are respectively the upper and lower planes of the bolt head 110.

[0046] In the embodiments, the first abutting plane 111 and the second abutting plane 112 are parallel to each other.

[0047] As Figure 1 shown, in the embodiments, the side wall of the bolt head is provided with a measuring groove 113, one end of the measuring groove 113 extends to the first abutting plane 111, and the other end of the measuring groove 113 extends to the second abutting plane 112, so that the first abutting plane 111 and the second abutting plane 112 are through.

[0048] It is worth mentioning that in the embodiment, the tensioning bolt 10 is used to cooperate with the insert 30, which is connected with the insert 30 to apply a pre-tightening force to the insert 30, so that the insert 30 is tightly installed relative to the mounting hole 40, so as to accurately measure the installation gap of the insert 30.

[0049] Specifically, as shown in Figure 2 the insert 30 is embedded in the carbon fiber mounting hole 40, the insert 30 has a bolt hole 320 axially consistent with the mounting hole 40, the tensioning bolt 10 is connected with the bolt hole 320 through the screw rod 120, and as the tensioning bolt 10 is tightened, the first abutting plane 111 of the tensioning bolt 10 abuts against the mounting hole end face 410, the insert 30 is moved outwardly relative to the mounting hole 40 under the tension of the tensioning bolt 10, so that the insert 30 tightly abuts against the mounting hole 40, and the insert 30 reaches a predetermined measurement state.

[0050] In the embodiment, the measurement unit is a micrometer, which includes a measuring instrument 220 and a measuring needle 210, the measuring needle 210 is used to penetrate the measuring groove 113 and abut against the mounting hole end face 410 and the insert end face 310 respectively, and the distance between the insert end face 310 and the mounting hole end face 410 is measured by the length difference of the measuring needle 210.

[0051] Specifically, as shown in Figure 3 the measuring needle 210 abuts against the insert end face 310 through the measuring groove 113, and the other end of the measuring needle 210 is flush with the second abutting plane 112, and the length D value of the measuring needle 210 can be obtained by reading the micrometer.

[0052] As shown in Figure 4 the measuring needle 210 abuts against the mounting hole end face 410 through the measuring groove 113, and the other end of the measuring needle 210 is flush with the second abutting plane 112, and the length d value of the other measuring needle 210 can be obtained by reading the micrometer.

[0053] The distance between the mounting hole end face 410 and the insert end face 310 can be obtained by the difference between D and d, and the gap between the insert 30 and the mounting hole end face in the tensioning state is obtained.

[0054] The device measures the distance between the insert end face 310 and the mounting hole end face 410 by the measuring needle 210 of the measurement unit 20 penetrating the measuring groove 113 and abutting against the mounting hole end face 410 and the insert end face 310 respectively in the pre-tightening state of the insert 30. The device can realize tensioning of the insert 30 in a narrow space, and can realize tensioning of different torsion forces; the gap between the insert end face 310 and the carbon fiber mounting hole end face 410 is measured in the torsion tensioning state, the working condition of the metal insert and the carbon fiber installation is simulated, and the gap of the installed insert is effectively measured.

[0055] In the embodiment, the insert 30 is tensioned by the tension bolt 10, and different specifications of the tension bolt 10 are used to tension different specifications of the insert, so that the device can measure the installation gap of the insert 30 in different tension states.

[0056] It should be noted that, in the installation state of the tension bolt 10, the measuring groove 113 is opposite to the installation hole end surface 410 and the insert end surface 310. It is necessary to ensure that the measuring needle 210 can abut against the installation hole end surface 410 and the insert end surface 310 through the measuring groove 113. The measuring groove 113 on the tension bolt 10 realizes the exposure of the measuring position in the bolt tensioning state.

[0057] Preferably, the extension direction of the measuring groove 113 is parallel to the axial direction of the screw rod 120, so as to ensure that the measuring needle 210 is deeply inserted into the measuring groove 113, and the accuracy of the measurement is ensured.

[0058] As shown in FIG. 1, Figure 1 in an embodiment, a plurality of measuring grooves 113 are arranged, and the plurality of measuring grooves 113 are uniformly arranged along the circumferential wall of the bolt head 110.

[0059] Each measuring groove 113 can be measured once, and a plurality of groups of data are averaged to ensure the accuracy of the measurement.

[0060] At the same time, the measurement is performed at different positions along the circumference of the bolt head 110, so as to further ensure the accuracy of the gap measurement.

[0061] As shown in FIG. 1, Figure 1 in an embodiment, an inner hexagonal hole 114 is arranged at the center position of the second abutting surface 112 of the bolt head 110, which is used to rotate the tension bolt 10, so as to apply different degrees of pre-tightening force to the insert 30.

[0062] As shown in FIG. 1, Figure 1 in an embodiment, the measuring unit 20 further includes a table seat 230, and the measuring needle 210 is connected to the table seat 230.

[0063] Preferably, the table seat 230 has a measuring reference surface, and the measuring needle 210 is vertically connected to the measuring reference surface, and the measuring reference surface is used to abut against the second abutting surface 112.

[0064] During the measurement, only the measuring reference surface of the table seat 230 is abutted against the second abutting surface 112, and the measuring needle 210 is inserted into the measuring groove 113.

[0065] As a further improvement, in an embodiment, the measuring reference surface has magnetism, and can be adsorbed to the second abutting surface 112, so as to prevent the table seat 230 and the measuring needle 210 from deviating.

[0066] In one embodiment, the detachable replacement measuring needle can be designed, and the appropriate measuring needle is selected according to the thickness of the bolt head 110 and the gap size of the insert 30 to measure the insert gap.

[0067] As shown in Figure 5 An insert installation gap measurement method is implemented based on the insert installation gap measurement device as described above, comprising the following steps:

[0068] Step one: apply a pre-tightening force to the insert 30 towards the outside of the mounting hole 40 by tightening the bolt 10; make the insert 30 relative to the tightly mounted hole 40 to be in a tension state.

[0069] Step two: measure the first distance by the measuring unit 20, the first distance is the distance from the second abutting plane 112 to the insert end face 310.

[0070] Specifically, in this step, as shown in Figure 3 The measuring reference surface of the table seat 230 is abutted to the second abutting plane 112, and the measuring needle 210 is abutted to the insert end face 310 to obtain the first length value D of the measuring needle;

[0071] Step three: measure the second distance by the measuring unit 20, the second distance is the distance from the second abutting plane 112 to the mounting hole end face 410;

[0072] Specifically, in this step, as shown in Figure 4 The measuring reference surface of the table seat 230 is abutted to the second abutting plane 112, and the measuring needle 210 is abutted to the mounting hole end face 410 to obtain the second length value d of the measuring needle.

[0073] Step four: the difference between the first length value D of the measuring needle and the second length value d of the measuring needle can obtain the distance between the insert end face 310 and the mounting hole end face 410.

[0074] By this method, the gap between the end face of the insert 30 and the mounting hole end face 410 under the compression state can be effectively measured, the working condition of the metal insert and the carbon fiber part is simulated, and the insert gap after installation is measured.

[0075] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An insert fit clearance measuring device characterized by, The tensioning bolt (10) comprises a bolt head (110) and a screw rod (120), the first abutting plane (111) is arranged on the side of the bolt head (110) close to the screw rod (120), and the second abutting plane (112) serving as a measurement reference is arranged on the side of the bolt head (110) away from the screw rod (120); a measurement groove (113) is arranged in the side wall of the bolt head (110) and communicates with the first abutting plane (111) and the second abutting plane (112); The tensioning bolt (10) is arranged to abut against the end face of the mounting hole (40) through the first abutting plane (111) and to connect the insert (30) embedded in the mounting hole (40) through the screw rod (120) so as to apply a pre-tightening force to the insert (30) to simulate the installation working condition of the insert; The measurement unit (20) comprises a measuring instrument (220) and a measuring needle (210), the measuring needle (210) is arranged to penetrate through the measurement groove (113) and abut against the end face of the mounting hole (40) and the end face of the insert (30) respectively so as to measure the distance between the end face of the insert (30) and the end face of the mounting hole (40) in the pre-tightening force state. In the installation state of the tensioning bolt (10), the measurement groove (113) is opposite to the end face of the mounting hole (40) and the end face of the insert (30).

2. The insert-mounted gap measuring device of claim 1, wherein, The extension direction of the measurement groove (113) is parallel to the axial direction of the screw rod (120).

3. The insert-mounted gap measuring device of claim 2, wherein, A plurality of measurement grooves (113) are arranged, and the plurality of measurement grooves (113) are uniformly arranged along the peripheral wall of the bolt head (110).

4. The insert-mounted gap measuring device of claim 1, wherein, The second abutting plane (112) is provided with an inner hexagonal hole (114) at the center position.

5. The insert-mounted gap measuring device of claim 1, wherein, The measuring instrument (220) further comprises a watch seat (230), and the measuring needle (210) is connected to the watch seat (230).

6. The insert-mounted gap measuring device of claim 1, wherein, The watch seat (230) has a measurement reference surface, the measuring needle (210) is vertically connected to the measurement reference surface, and the measurement reference surface is arranged to abut against the second abutting plane (112).

7. The insert-mounted gap measuring device of claim 6, wherein, The measurement reference surface has magnetism and is arranged to be adsorbed to the second abutting plane (112).

8. The insert-mounted gap measuring device of claim 7, wherein, The insert installation gap measuring device according to any one of claims 1-8, comprising:

9. An insert fit clearance measurement method characterized by, applying a pre-tightening force to the insert (30) by the tensioning bolt (10) towards the outside of the mounting hole (40); measuring a first distance by the measurement unit (20), the first distance being the distance from the second abutting plane (112) to the end face of the insert (30); measuring a second distance by the measurement unit (20), the second distance being the distance from the second abutting plane (112) to the end face of the mounting hole (40); obtaining the distance between the end face of the insert (30) and the end face of the mounting hole (40) by the difference between the first distance and the second distance.

10. The insert installation gap measuring method according to claim 9, wherein the step of measuring the first distance by the measurement unit (20) comprises: ​ abutting the measuring reference surface of the table base (230) against the second abutment plane (112), abutting the measuring probe (210) against the end surface of the insert (30), obtaining a first length value of the measuring probe (210); the step of measuring the second distance by means of the measuring unit (20) comprises: abutting the measuring reference surface of the table base (230) against the second abutment plane (112), abutting the measuring probe (210) against the end surface of the mounting hole (40), obtaining a second length value of the measuring probe (210).

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