Detection device

Abstract

The invention provides a detection device which comprises a detection piece, a floating chuck and a retainer, a first through hole, a second through hole and a third through hole are formed in the retainer, the first through hole is located between the second through hole and the third through hole, the first through hole is communicated with the second through hole and the third through hole, and the floating chuck is arranged in the first through hole. The floating chuck is partially located in the first through hole, the second through hole and the third through hole respectively, the floating chuck can move relative to the inner wall of the second through hole and the inner wall of the third through hole, and the floating chuck is connected with the detection piece. Therefore, the phenomenon that the internal threaded hole is damaged when the detection piece detects the internal threaded hole is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of tooling technology, and in particular to a detection device. Background Art

[0002] With the continuous advancement of technology, the application range of internal threaded holes on various workpieces is becoming increasingly wider. Currently, it is generally necessary to regularly inspect internal threaded holes to ensure that they can function properly and avoid failure. The existing technology mainly uses traditional measuring tools or handheld electric testing machines to inspect internal threaded holes. However, these measuring tools or electric testing machines are prone to damage when inspecting internal threaded holes. Summary of the Invention

[0003] An embodiment of the present application provides a detection device to solve the problem that internal threaded holes are easily damaged when being detected.

[0004] To solve the above problems, this application is implemented as follows:

[0005] An embodiment of the present application provides a detection device, including: a detection member, a floating chuck and a retaining frame, wherein a first through hole, a second through hole and a third through hole are formed in the retaining frame, the first through hole is located between the second through hole and the third through hole, and the first through hole is connected to the second through hole and the third through hole respectively, the floating chuck portion is located in the first through hole, the second through hole and the third through hole respectively, and the floating chuck can move relative to the inner walls of the second through hole and the third through hole, and the floating chuck is connected to the detection member.

[0006] In the embodiment of the present application, since the floating chuck can move relative to the inner walls of the second through hole and the third through hole, and the floating chuck is connected to the detection member, when the detection member detects the internal threaded hole, the detection member can move relative to the internal threaded hole under the drive of the floating chuck, thereby avoiding the occurrence of the phenomenon that the internal threaded hole is damaged due to the direct rigid abutment between the detection member and the internal threaded hole, that is, reducing the occurrence of the phenomenon that the internal threaded hole is damaged when the detection member detects the internal threaded hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0008] Figure 1 is a structural schematic diagram of a detection device provided in an embodiment of the present application;

[0009] Figure 2 This is a cross-sectional view of a detection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0011] The terms "first", "second" etc. in the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. In addition, the terms "comprise" and "have" and any deformation thereof are intended to cover non-exclusive inclusions, such as, the process, method, system, product or equipment comprising a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are intrinsic to these processes, methods, products or equipment. In addition, "and / or" is used in the present application to represent at least one of connected objects, such as A and / or B and / or C, and represents comprising independent A, independent B, independent C, and A and B all exist, B and C all exist, A and C all exist, and 7 situations that A, B and C all exist.

[0012] See Figure 1 and Figure 2 , Figure 1 and Figure 2 They are schematic diagrams of the structure of a detection device provided in an embodiment of the present application, such as Figure 1 and Figure 2 As shown, the detection device includes: a detection member 10, a floating chuck 20 and a retaining frame 30, wherein a first through hole 301, a second through hole 302 and a third through hole 303 are formed in the retaining frame 30, the first through hole 301 is located between the second through hole 302 and the third through hole 303, and the first through hole 301 is connected to the second through hole 302 and the third through hole 303 respectively, the floating chuck 20 is partially located in the first through hole 301, the second through hole 302 and the third through hole 303 respectively, and the floating chuck 20 can move relative to the inner walls of the second through hole 302 and the third through hole 303, and the floating chuck 20 is connected to the detection member 10.

[0013] The working principle of the embodiment of the present application can be described as follows:

[0014] Since the floating chuck 20 can move relative to the inner walls of the second through hole 302 and the third through hole 303, and the floating chuck 20 is connected to the detection member 10, when the detection member 10 detects the internal threaded hole, the detection member 10 can move relative to the internal threaded hole under the drive of the floating chuck 20, thereby avoiding the occurrence of the phenomenon that the internal threaded hole is damaged due to the direct rigid abutment between the detection member 10 and the internal threaded hole, that is, reducing the occurrence of the phenomenon that the internal threaded hole is damaged when the detection member 10 detects the internal threaded hole.

[0015] Among them, the specific structure of the detection part 10 is not limited here. Optionally, the detection part 10 may include multiple sensors, and the function of each sensor may be different. For example, the multiple sensors may include at least one of the following: a first sensor for detecting the diameter of the internal threaded hole, a second sensor for detecting the degree of thread damage of the internal threaded hole, a third sensor for detecting the pitch of the internal threaded hole, etc.

[0016] Among them, the specific structure of the retaining frame 30 is not limited here. Optionally, the retaining frame 30 includes a first retaining frame 31 and a second retaining frame 32. The first retaining frame 31 and the second retaining frame 32 are arranged opposite to each other and spaced apart to enclose a first through hole 301, a second through hole 302 and a third through hole 303. That is, the first retaining frame 31 and the second retaining frame 32 can both be separate components, and the first retaining frame 31 and the second retaining frame 32 can be assembled to obtain the above-mentioned retaining frame 30, and the first retaining frame 31 can also be called an upper retaining frame, and the second retaining frame 32 can be called a lower retaining frame.

[0017] Alternatively, the retaining frame 30 may be an integrally formed structure, and the first through hole 301 , the second through hole 302 and the third through hole 303 are obtained by drilling holes in the retaining frame 30 .

[0018] Among them, see Figure 2 , the XY direction can be as follows Figure 2 As shown, since the floating chuck 20 can move relative to the inner walls of the second through hole 302 and the third through hole 303, it can be understood that the floating chuck 20 and the detection member 10 can move in the XY plane, or it can be understood that the floating chuck 20 and the detection member 10 are offset in the XY plane, and the offset of the floating chuck 20 and the detection member 10 can compensate for various precision errors, realize radial and axial floating adaptive tapping of the internal thread, thereby preventing the internal thread hole from being rigidly destroyed. The detection device provided by the present application can not only protect the integrity of the internal thread hole, but also can be used to detect the internal thread hole. The detection device can accurately locate the internal thread hole and detect the internal thread hole at high speed, so that the detection time of the detection device for the internal thread hole is short and the detection efficiency is high.

[0019] It should be noted that, when the detection device in the related art detects the internal thread, in order to prevent the rigidity from damaging the threaded hole, it is necessary to reduce the detection speed of the threaded hole, which results in a longer detection time. However, in the embodiment of the present application, since the floating chuck 20 and the detection member 10 can be offset in the XY plane, there is no need to worry about the detection member 10 damaging the threaded hole when detecting the threaded hole, and therefore there is no need to reduce the detection speed of the threaded hole, that is, the detection speed of the threaded hole can be made higher, thereby making the detection time of the threaded hole shorter.

[0020] It should be noted that the positions of the second through hole 302 and the third through hole 303 are not specifically limited here. Optionally, along the horizontal direction, the second through hole 302 and the third through hole 303 may be partially staggered.

[0021] As an optional embodiment, the second through hole 302 and the third through hole 303 are arranged side by side and spaced apart, and the axial direction of the first through hole 301 intersects with the axial directions of the second through hole 302 and the third through hole 303 .

[0022] Among them, the axial direction of the first through hole 301 intersects with the axial directions of the second through hole 302 and the third through hole 303. It can be understood that: there is a first angle between the axial direction of the first through hole 301 and the axial direction of the second through hole 302, and there is a second angle between the axial direction of the first through hole 301 and the axial direction of the third through hole 303. The specific values ​​of the above-mentioned first angle and second angle are not limited here. Optionally, the first angle and the second angle can both be 90 degrees.

[0023] In the embodiment of the present application, the second through hole 302 and the third through hole 303 can be arranged side by side and spaced apart along the same horizontal direction. In this way, when the floating chuck 20 moves relative to the inner walls of the second through hole 302 and the third through hole 303, the resistance encountered is small, thereby enhancing the movement effect of the floating chuck 20.

[0024] As an optional implementation, see Figure 2The floating chuck 20 includes a chuck body 21, a first protrusion 22, a second protrusion 23 and a third protrusion 24. The chuck body 21 includes a first surface, a second surface and a third surface. The first surface and the second surface are arranged opposite to each other. The third surface is arranged between the first surface and the second surface, and the third surface is connected to the first surface and the second surface respectively. The first protrusion 22 is fixedly connected to the first surface, the second protrusion 23 is fixedly connected to the second surface, and the third protrusion 24 is fixedly connected to the third surface. The first protrusion 22 is arranged in the second through hole 302, the second protrusion 23 is arranged in the third through hole 303, the third protrusion 24 is passed through the first through hole 301, and the third protrusion 24 is partially located outside the first through hole 301. A first accommodating groove 241 is opened on the third protrusion 24, and the detection member 10 is detachably connected to the first accommodating groove 241.

[0025] Among them, the specific manner in which the detection member 10 is detachably connected to the first accommodating groove 241 is not limited here. Optionally, the detection member 10 can be partially inserted into the first accommodating groove 241, and the portion of the detection member 10 inserted into the first accommodating groove 241 abuts against the inner wall of the first accommodating groove 241. In this way, the inner wall of the first accommodating groove 241 can have a limiting effect on the portion of the detection member 10 inserted into the first accommodating groove 241. When the detection member 10 needs to be removed from the first accommodating groove 241, the detection member 10 can be removed from the first accommodating groove 241 by applying external force to the detection member 10 and along the axial direction of the first through hole 301. It should be noted that the axial direction of the above-mentioned first through hole 301 can coincide with the direction in which the bottom of the first accommodating groove 241 points to the slot opening.

[0026] Alternatively, the detection member 10 can be detachably connected to the first accommodating groove 241 through the protective cover 11, that is, the part of the detection member 10 that is inserted into the first accommodating groove 241 is connected to the inner wall of the first accommodating groove 241 through the protective cover 11. In this way, the detection member 10 does not need to be directly connected to the inner wall of the first accommodating groove 241, thereby enhancing the protection effect of the detection member 10.

[0027] It should be noted that, when the detection member 10 is a gauge, the protective cover 11 can also be used as a gauge jacket.

[0028] In the embodiment of the present application, the first protrusion 22 is arranged in the second through hole 302, the second protrusion 23 is arranged in the third through hole 303, and the third protrusion 24 is passed through the first through hole 301. In this way, the limiting effect of the first protrusion 22, the second protrusion 23 and the third protrusion 24 can be enhanced, and the floating chuck 20 can be prevented from falling off from the first through hole 301, the second through hole 302 and the third through hole 303.

[0029] Alternatively, see Figure 1 and Figure 2 The floating chuck 20 may further include a detection piece jacket 25, which may be sleeved on the third protrusion 24, and the detection piece 10 is inserted into the detection piece jacket 25, and the detection piece 10 is partially located outside the detection piece jacket 25. In this way, the detection piece jacket 25 may exert a force on the inner wall of the first accommodating groove 241 pointing in the direction of the detection piece 10, thereby enhancing the connection effect between the detection piece 10 and the first accommodating groove 241, and further enhancing the limiting effect of the first accommodating groove 241 on the detection piece 10.

[0030] It should be noted that the specific shapes of the first protrusion 22 , the second protrusion 23 and the third protrusion 24 are not limited herein. Optionally, the first protrusion 22 , the second protrusion 23 and the third protrusion 24 may all be square protrusions.

[0031] As an optional implementation, see Figure 2 , first arc-shaped protrusions 3021 are respectively provided on two opposite inner walls of the second through hole 302, the first protrusion 22 abuts against the first arc-shaped protrusion 3021, and / or,

[0032] Two opposite inner walls of the third through hole 303 are respectively provided with second arc-shaped protrusions, and the second protrusion portion 23 abuts against the second arc-shaped protrusions.

[0033] The specific radians of the first arc-shaped protrusion 3021 and the second arc-shaped protrusion are not limited here. Optionally, when the radians of the first arc-shaped protrusion 3021 and the second arc-shaped protrusion are π radians, the first arc-shaped protrusion 3021 and the second arc-shaped protrusion can also be referred to as hemispherical protrusions.

[0034] It should be noted that in order to extend the service life of the first arc-shaped protrusion 3021 and the second arc-shaped protrusion, the first arc-shaped protrusion 3021 and the second arc-shaped protrusion can be made of steel material. In this way, when the first arc-shaped protrusion 3021 and the second arc-shaped protrusion are hemispherical protrusions, the above-mentioned hemispherical protrusions can also be called steel ball protrusions or steel balls.

[0035] In the embodiment of the present application, since the first protrusion 22 abuts against the first arc-shaped protrusion 3021, and the second protrusion 23 abuts against the second arc-shaped protrusion, the first arc-shaped protrusion 3021 can have a limiting effect on the first protrusion 22, and the second arc-shaped protrusion can also have a limiting effect on the second protrusion 23; at the same time, when the first protrusion 22 and the second protrusion 23 move relative to the inner walls of the second through hole 302 and the third through hole 303, the friction force of the first arc-shaped protrusion 3021 on the first protrusion 22 can be smaller, and the friction force of the second arc-shaped protrusion on the second protrusion 23 can also be smaller, thereby making the first protrusion 22 and the second protrusion 23 move more smoothly relative to the inner walls of the second through hole 302 and the third through hole 303.

[0036] As an optional implementation, see Figure 2 The detection device further includes a first elastic member 40 , and the floating chuck 20 further includes a fourth protrusion 26 , the fourth protrusion 26 is arranged opposite to the third protrusion 24 , and the fourth protrusion 26 abuts against one end of the first elastic member 40 .

[0037] The specific structure of the first elastic member 40 is not limited here. Optionally, the first elastic member 40 can be a spring or a component made of a flexible material, and the fourth protrusion 26 can be a boss, etc.

[0038] In the embodiment of the present application, since the detection device also includes a first elastic member 40, and the fourth protrusion 26 abuts against one end of the first elastic member 40, when the first elastic member 40 is in a compressed state, under the action of the restoring deformation force of the first elastic member 40, the detection member 10 can be driven to move along the axial direction of the first through hole 301, and the axial direction of the first through hole 301 can be referred to as the Z direction, thereby further increasing the floating range of the detection member 10, and further reducing the impact on the internal threaded hole.

[0039] As an optional implementation, see Figure 2 The detection device also includes a positioning sleeve 50, which abuts against the surface of the retaining frame 30 away from the detection member 10, and a second accommodating groove 51 is opened on the positioning sleeve 50 at a position corresponding to the first elastic member 40, and the first elastic member 40 is arranged in the second accommodating groove 51.

[0040] In the embodiment of the present application, since the positioning sleeve 50 abuts against the surface of the holder 30 away from the detection member 10 , the positioning sleeve 50 can have a positioning and limiting effect on the holder 30 .

[0041] As an optional implementation, see Figure 2The detection device also includes a floating sleeve 60, which is movably arranged in the second accommodating groove 51, and a fourth through hole 61 is opened on the floating sleeve 60, one end of the first elastic member 40 is in contact with the bottom of the second accommodating groove 51, and the other end of the first elastic member 40 is connected to the fourth protrusion 26, and the fourth protrusion 26 is partially passed through the fourth through hole 61.

[0042] In the embodiment of the present application, a gap may be provided between the floating sleeve 60 and the bottom of the second receiving groove 51, and the other end of the first elastic member 40 is connected to the fourth protrusion 26. In this way, the floating sleeve 60 has a better limiting effect on the first elastic member 40. In addition, the floating sleeve 60 can move within the second receiving groove 51, driving the detection member 10 to move in the Z direction and providing guidance for the movement of the detection member 10 in the Z direction, thereby improving the movement accuracy of the detection member 10 in the Z direction. Figure 2 , the Z direction can be as follows Figure 2 shown.

[0043] As an optional implementation, see Figure 2 The fourth through hole 61 is a tapered hole, and the width of the fourth through hole 61 gradually decreases along the direction from the first elastic member 40 to the detection member 10 .

[0044] In the embodiment of the present application, the fourth through hole 61 is a tapered hole, and the width of the fourth through hole 61 gradually decreases along the direction from the first elastic member 40 to the detection member 10. In this way, when the fourth protrusion 26 moves in the fourth through hole 61, the fourth through hole 61 can guide the fourth protrusion 26, and then guide the movement of the detection member 10 in the Z direction.

[0045] It should be noted that when the first elastic member 40 switches from the normal state to the compressed state, it can drive the detection member 10 to move from the first position to the second position in the Z direction. When the first elastic member 40 recovers its deformation (that is, when it switches from the compressed state to the normal state), the fourth protrusion 26 moves in the fourth through hole 61. In this way, under the driving action of the first elastic member 40, the detection member 10 can be moved from the second position to the first position, and the above-mentioned movement from the second position to the first position can be referred to as the automatic return of the detection member 10. Since the fourth through hole 61 is a tapered hole, the fourth through hole 61 can act as a guide mechanism and return mechanism for the fourth protrusion 26 during the automatic return of the detection member 10, and the fourth protrusion 26 can move along the inner wall of the fourth through hole 61, so that the fourth protrusion 26 has no offset in the XY direction and always maintains in the Z direction, so that the detection member 10 can accurately move to the first position, that is, the accuracy of the automatic return of the detection member 10 can be improved.

[0046] As an optional implementation, see Figure 2 The detection device further includes a second elastic member 70 and a connecting sleeve 80. The connecting sleeve 80 abuts against the positioning sleeve 50 through the second elastic member 70. The connecting sleeve 80 is used for detachable connection with the control component.

[0047] In the embodiment of the present application, the connecting sleeve 80 is used to be detachably connected to the control component. In this way, by detachably connecting the connecting sleeve 80 to the control components with different functions, the connection between the detection component 10 and the control components with different functions can be realized, and the detection component 10 can realize the detection of the internal threaded hole under the control of the control components with different functions, thereby expanding the scope of use of the detection component 10.

[0048] Furthermore, since the connecting sleeve 80 abuts the positioning sleeve 50 via the second elastic member 70, the second elastic member 70 can act as a buffer between the connecting sleeve 80 and the positioning sleeve 50. Furthermore, the compression and recovery deformation of the second elastic member 70 can further enhance the movement of the detection member 10 in the Z direction. The compression and recovery deformation of the second elastic member 70 can be found in the description of the first elastic member 40 described above, and will not be further elaborated here.

[0049] As an optional implementation, see Figure 2 The number of the second elastic members 70 is multiple, and the multiple second elastic members 70 are arranged side by side and at intervals.

[0050] In the embodiment of the present application, there are multiple second elastic members 70 , which can further enhance the effect of the movement of the detection member 10 along the Z direction.

[0051] It should be noted that, when the detection device in the related art detects the internal threaded hole, since the structure of the detection device is usually fixed, the movement range of the detection member 10 is also limited, that is, the floating amount of the detection member 10 is limited, and the floating amount is usually not adjustable; in the embodiment of the present application, by adjusting the sizes of the above-mentioned first elastic member 40, the second elastic member 70, the positioning sleeve 50, the floating sleeve 60 and the retaining frame 30 and adjusting the gap between each component, the floating amount of the detection member 10 can be adjusted, and the floating amount of the detection member 10 can be dynamically adjusted according to the specifications of the internal threaded hole, thereby enhancing the adaptability of the detection device provided in the embodiment of the present application to internal threaded holes of different specifications.

[0052] In addition, the detection device provided in the embodiment of the present application can detect internal threaded holes of multiple specifications, shapes and relatively complex positions, thereby further increasing the range of internal threaded holes that the detection member 10 can be used to detect.

[0053] Alternatively, see Figure 1The detection device may further include a shell 90, and the shell 90 may also be referred to as a support sleeve. The above-mentioned first elastic member 40, second elastic member 70, positioning sleeve 50, floating sleeve 60 and retaining frame 30 may all be arranged in the shell 90, and the shell 90 may be fixedly connected to the connecting sleeve 80 through a connecting member 100.

[0054] The above is a preferred implementation of the embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A detection device, characterized in that: include: A detection member, a floating chuck and a retaining frame, wherein a first through hole, a second through hole and a third through hole are formed in the retaining frame, the first through hole is located between the second through hole and the third through hole, and the first through hole is communicated with the second through hole and the third through hole respectively, the floating chuck parts are respectively located in the first through hole, the second through hole and the third through hole, and the floating chuck can move relative to the inner walls of the second through hole and the third through hole, and the floating chuck is connected to the detection member.

2. The detection device according to claim 1, characterized in that The second through hole and the third through hole are arranged side by side and spaced apart, and the axial direction of the first through hole intersects with the axial directions of the second through hole and the third through hole.

3. The detection device according to claim 2, characterized in that The floating chuck includes a chuck body, a first protrusion, a second protrusion and a third protrusion. The chuck body includes a first surface, a second surface and a third surface. The first surface and the second surface are arranged opposite to each other, the third surface is arranged between the first surface and the second surface, and the third surface is connected to the first surface and the second surface respectively. The first protrusion is fixedly connected to the first surface, the second protrusion is fixedly connected to the second surface, and the third protrusion is fixedly connected to the third surface. The first protrusion is arranged in the second through hole, the second protrusion is arranged in the third through hole, the third protrusion is passed through the first through hole, and the third protrusion is partially located outside the first through hole. A first accommodating groove is opened on the third protrusion, and the detection member is detachably connected to the first accommodating groove.

4. The detection device according to claim 3, characterized in that Two opposite inner walls of the second through hole are respectively provided with first arc-shaped protrusions, the first protrusions abut against the first arc-shaped protrusions, and / or, Two opposite inner walls of the third through hole are respectively provided with second arc-shaped protrusions, and the second protrusion portion abuts against the second arc-shaped protrusions.

5. The detection device according to claim 3 or 4, characterized in that: The detection device further includes a first elastic member, and the floating chuck further includes a fourth protrusion, the fourth protrusion is arranged opposite to the third protrusion, and the fourth protrusion abuts against one end of the first elastic member.

6. The detection device according to claim 5, characterized in that The detection device further includes a positioning sleeve, which abuts against a surface of the retaining frame away from the detection member, and a second accommodating groove is provided on the positioning sleeve at a position corresponding to the first elastic member, and the first elastic member is disposed in the second accommodating groove.

7. The detection device according to claim 6, characterized in that The detection device also includes a floating sleeve, which is movably arranged in the second accommodating groove, and a fourth through hole is opened on the floating sleeve, one end of the first elastic member is abutted against the bottom of the second accommodating groove, and the other end of the first elastic member is connected to the fourth protrusion, and the fourth protrusion is partially passed through the fourth through hole.

8. The detection device according to claim 7, characterized in that The fourth through hole is a tapered hole, and a width of the fourth through hole gradually decreases along a direction from the first elastic member to the detection member.

9. The detection device according to claim 6, characterized in that: The detection device further includes a second elastic member and a connecting sleeve. The connecting sleeve abuts against the positioning sleeve via the second elastic member. The connecting sleeve is used for detachably connecting with the control component.

10. The detection device according to claim 9, characterized in that: There are multiple second elastic members, and the multiple second elastic members are arranged side by side and at intervals.

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