阅读说明：本技术 适用于检测电缆连接器的端子装配深度的检测装置及其检测方法 (Detection device and detection method suitable for detecting terminal assembly depth of cable connector ) 是由 杨岸 胡绿海 张丹丹 曹健 鲁异 贺雨霆 于 2019-01-31 设计创作，主要内容包括：提供一种适用于检测电缆连接器的端子在壳体中的装配深度的检测装置及其检测方法,该检测装置包括：一个定位组件,适用于对所述电缆连接器的壳体进行定位；以及一个检测组件,该检测组件包括：一个第一驱动装置,一个感测元件,所述感测元件安装在所述第一驱动装置上,以在所述第一驱动装置的驱动下移动,一个位移传感器,所述位移传感器安装在所述第一驱动装置上,以在所述第一驱动装置的驱动下在所述感测元件的移动方向上移动,并且所述位移传感器与所述感测元件连接,以感测所述感测元件的位移,由此获得端子在壳体中的装配深度。该检测装置检测容易,且不需要使用激光或视觉系统,仅需要一个位移传感器,因此更加稳定和廉价。(There are provided a detecting device adapted to detect an assembling depth of a terminal of a cable connector in a housing, the detecting device including: a positioning assembly adapted to position a housing of the cable connector; and a detection assembly, the detection assembly comprising: a first driving means, a sensing element mounted on the first driving means to move by the driving of the first driving means, a displacement sensor mounted on the first driving means to move in a moving direction of the sensing element by the driving of the first driving means, and the displacement sensor is connected to the sensing element to sense the displacement of the sensing element, thereby obtaining the fitting depth of the terminal in the housing. The detection device is easy to detect, does not need to use a laser or a vision system, only needs one displacement sensor, and is more stable and cheaper.)

1. A device for detecting the depth of fitting of a terminal of a cable connector in a housing, comprising:

a positioning assembly adapted to position a housing of the cable connector; and

a detection assembly, comprising:

a first drive device for driving the motor to rotate,

a sensing element mounted on the first driving means to move under the driving of the first driving means,

a displacement sensor mounted on the first driving means to move in a moving direction of the sensing element by the driving of the first driving means, and connected to the sensing element to sense the displacement of the sensing element.

2. The detection apparatus of claim 1, wherein the positioning assembly comprises:

and the positioning plate is provided with a through hole extending along the moving direction of the sensing element, and the side wall of the through hole is provided with a step.

3. The detection apparatus of claim 1 or 2, wherein the positioning assembly further comprises:

a support substrate, the positioning plate being connected to a first end of the support substrate in a moving direction of the sensing element, the first driving device being disposed on the support substrate;

a support base slidably connected to the support substrate in a moving direction of the sensor element, and including a bottom plate and a first side plate connected to the bottom plate, the first side plate facing a second end of the support substrate opposite to the first end;

a second driving device, connected to the supporting base and adapted to drive the supporting base to slide in the moving direction of the sensing element; and

at least one elastic piece disposed between the second end of the support substrate and the first side plate.

4. The detection device according to claim 3, wherein the first driving device includes:

a first cylinder mounted on the support base plate;

a first piston rod slidably mounted in the first cylinder and reciprocally movable in a moving direction of the sensing element.

5. The detection device according to claim 4, wherein a second slide rail and a slider cooperating with the second slide rail are disposed on the support substrate, the slider is connected with the first piston rod, and the sensing element and the displacement sensor are disposed on the slider.

6. A detection apparatus according to any one of claims 3 to 5, wherein the second drive means comprises

A base;

a second cylinder mounted on said base;

a second piston rod slidably mounted in the second cylinder and reciprocally movable in a moving direction of the sensing element, the support base being mounted on the second piston rod.

7. The detection device of claim 6, wherein the support base further comprises:

at least one guide part connected with the base plate and parallel to a moving direction of the sensing element to guide the support substrate to move in the moving direction of the sensing element.

8. The detection apparatus according to any one of claims 2 to 6, wherein the positioning plate comprises:

a first plate provided with a first through hole extending in a moving direction of the sensing element; and

and the second plate is provided with a second through hole extending along the moving direction of the sensing element, the central line of the second through hole is collinear with the central line of the first through hole, and the diameter of the second through hole is larger than that of the first through hole.

9. The test device of claim 8, wherein the second plate is further provided with a coupling groove extending radially outward from the second through hole to couple with a radially extending portion of the housing.

10. The test device of claim 8 or 9, wherein the second plate is detachably connected to the first plate.

11. The detection apparatus according to any one of claims 1-10, further comprising a clamping mechanism configured to clamp a cable of the cable connector to prevent the cable from moving relative to the positioning plate.

12. A method of detecting a terminal fitting depth of a cable connector using a detecting device according to any one of claims 1 to 11, comprising the steps of:

s1: positioning a housing of the cable connector;

s2: activating a first driving device, driving a sensing element to move towards a terminal of the cable connector to contact a free end of the terminal located in the housing, and sensing a displacement of the sensing element by a displacement sensor, thereby obtaining an assembly depth of the terminal in the housing according to the displacement of the sensing element.

13. The method of claim 12, wherein,

in step S1, the positioning of the housing of the cable connector is performed by inserting the cable connector into the through hole of the positioning plate and abutting an end of the housing of the cable connector opposite to the cable connection end against a step of the through hole.

14. The method according to claim 13, wherein said inserting said cable connector into a through hole of a positioning plate and abutting an end of a housing of said cable connector opposite to a cable connection end against a step of said through hole is performed by activating a second driving means to drive a supporting seat to move towards a terminal of said cable connector in a moving direction of said sensing element so that said cable connector is inserted into said through hole until an elastic member is compressed.

15. The method according to any one of claims 12 to 14, wherein in step S2, the obtaining of the fitting depth of the terminal in the housing from the displacement of the sensing element is obtained by subtracting a distance between an end of the housing of the cable connector opposite to the cable connection end and an initial position of the sensing element from the displacement of the sensing element to obtain the fitting depth of the terminal in the housing.

Technical Field

Embodiments of the present disclosure relate to a cable connector detection system, and more particularly, to a detection device adapted to detect an assembly depth of a terminal of a cable connector into a housing thereof.

Background

A cable connector generally includes a housing and terminals inserted in the housing. Among them, the terminal is a key element for connection and transmission in the connector. During assembly of the cable connector, the terminals are typically crimped onto the cable conductors and then inserted into the housing to protect the terminals and to ensure the insertion depth (i.e., the assembly depth) of the terminals, either too little or too much resulting in improper connection.

Disclosure of Invention

An object of the present disclosure is to solve at least one aspect of the above problems and disadvantages in the related art.

According to an embodiment of an aspect of the present disclosure, there is provided a detection device adapted to detect an assembly depth of a terminal of a cable connector in a housing, including:

a positioning assembly adapted to position a housing of the cable connector; and

a detection assembly, comprising:

a first drive device for driving the motor to rotate,

a sensing element mounted on the first driving means to move under the driving of the first driving means,

a displacement sensor mounted on the first driving means to move in a moving direction of the sensing element by the driving of the first driving means, and connected to the sensing element to sense the displacement of the sensing element.

According to detection device of an embodiment of this disclosure, the locating component includes:

and the positioning plate is provided with a through hole extending along the moving direction of the sensing element, and the side wall of the through hole is provided with a step.

According to detection device of an embodiment of this disclosure, the locating component still includes:

a support substrate, the positioning plate being connected to a first end of the support substrate in a moving direction of the sensing element, the first driving device being disposed on the support substrate;

a support base slidably connected to the support substrate in a moving direction of the sensor element, and including a bottom plate and a first side plate connected to the bottom plate, the first side plate facing a second end of the support substrate opposite to the first end;

a second driving device, connected to the supporting base and adapted to drive the supporting base to slide in the moving direction of the sensing element; and

at least one elastic piece disposed between the second end of the support substrate and the first side plate.

According to a detection device of an embodiment of the present disclosure, the first driving device includes:

a first cylinder mounted on the support base plate;

a first piston rod slidably mounted in the first cylinder and reciprocally movable in a moving direction of the sensing element.

According to the detection device of an embodiment of the present disclosure, a second slide rail and a slider matched with the second slide rail are disposed on the support substrate, the slider is connected with the first piston rod, and the sensing element and the displacement sensor are disposed on the slider.

According to the detection device of an embodiment of the present disclosure, the second driving device includes

A base;

a second cylinder mounted on said base;

a second piston rod slidably mounted in the second cylinder and reciprocally movable in a moving direction of the sensing element, the support base being mounted on the second piston rod.

According to the detection device of an embodiment of this disclosure, the supporting seat still includes:

at least one guide part connected with the base plate and parallel to a moving direction of the sensing element to guide the support substrate to move in the moving direction of the sensing element.

According to detection device of an embodiment of this disclosure, the locating plate includes:

a first plate provided with a first through hole extending in a moving direction of the sensing element; and

and the second plate is provided with a second through hole extending along the moving direction of the sensing element, the central line of the second through hole is collinear with the central line of the first through hole, and the diameter of the second through hole is larger than that of the first through hole.

According to the detection device of an embodiment of the present disclosure, the second plate is further provided with a coupling groove extending radially outward from the second through hole to couple with the radially extending portion of the housing.

According to the detection device of an embodiment of the present disclosure, the second plate is detachably connected to the first plate.

The detection device according to an embodiment of the present disclosure, further includes a clamping mechanism configured to clamp a cable of the cable connector to prevent the cable from moving relative to the positioning plate.

According to an embodiment of another aspect of the present disclosure, there is provided a method of detecting a terminal fitting depth of a cable connector using the above-mentioned detection device, including the steps of:

s1: positioning a housing of the cable connector;

s2: activating a first driving device, driving a sensing element to move towards a terminal of the cable connector to contact a free end of the terminal located in the housing, and sensing a displacement of the sensing element by a displacement sensor, thereby obtaining an assembly depth of the terminal in the housing according to the displacement of the sensing element.

According to the method of one embodiment of the present disclosure, in step S1, the positioning of the housing of the cable connector is performed by inserting the cable connector into the through hole of the positioning plate, and abutting an end of the housing of the cable connector opposite to the cable connection end against the step of the through hole.

According to the method of one embodiment of the present disclosure, the inserting of the cable connector into the through hole of the positioning plate and the abutting of the end of the housing of the cable connector opposite to the cable connection end against the step of the through hole are performed by activating a second driving device to drive the supporting seat to move towards the terminal of the cable connector along the moving direction of the sensing element, so that the cable connector is inserted into the through hole until the elastic member is compressed.

According to the method of one embodiment of the present disclosure, in step S2, the obtaining of the fitting depth of the terminal in the housing according to the displacement of the sensing element is obtained by subtracting a distance between an end of the housing of the cable connector opposite to the cable connection end and an initial position of the sensing element from the displacement of the sensing element to obtain the fitting depth of the terminal in the housing.

According to the detection device and the detection method for detecting the terminal assembly depth of the cable connector according to the above embodiments of the present disclosure, the housing of the cable connector is positioned, then the first driving device drives the sensing element and the displacement sensor to move towards the terminal of the cable connector, when the sensing element is in contact with the terminal, the displacement of the sensing element is sensed by the displacement sensor, and the distance between the terminal of the cable connector and the end of the housing of the cable connector opposite to the cable connection end, that is, the assembly depth of the terminal in the housing, is obtained according to the displacement of the sensing element. The detection device is easy to detect, does not need to use a laser or a vision system, only needs one displacement sensor, and is more stable and cheaper.

Drawings

Other objects and advantages of the present disclosure will become apparent and a full understanding thereof may be had by the following description taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic view of a prior art cable connector;

fig. 2 is a perspective view of a detection device adapted to detect the fitting depth of a terminal of a cable connector in a housing thereof according to an embodiment of the present disclosure;

FIG. 3 is another perspective view of the detection device shown in FIG. 2;

FIG. 4 is a top view of the detection device shown in FIG. 2;

FIG. 5 is a front view of the detection device shown in FIG. 2;

FIG. 6 is a schematic view of a positioning plate, a sensing element and a cable connector of a detection apparatus according to an embodiment of the disclosure; and

fig. 7 is a flowchart of a method of detecting a terminal fitting depth of a cable connector by a detection device according to an embodiment of the present disclosure.

Detailed Description

While the present disclosure will be fully described with reference to the accompanying drawings, which contain preferred embodiments of the disclosure, it should be understood before this description that one of ordinary skill in the art can modify the disclosure described herein while obtaining the technical effects of the present disclosure. Therefore, it should be understood that the foregoing description is a broad disclosure directed to persons of ordinary skill in the art, and that there is no intent to limit the exemplary embodiments described in this disclosure.

According to the general inventive concept of the present disclosure, there is provided a detection device adapted to detect an assembly depth of a terminal of a cable connector in a housing, including: a positioning assembly adapted to position a housing of the cable connector; and a detection assembly comprising: a first driving means, a sensing element mounted on the first driving means to move by the first driving means, a displacement sensor mounted on the first driving means to move in a moving direction of the sensing element by the first driving means, and the displacement sensor is connected to the sensing element to sense a displacement of the sensing element.

According to another general inventive concept of the present disclosure, there is also provided a method of detecting a terminal-fitting depth of a cable connector using the above-described detecting device, including the steps of: s1: positioning a housing of the cable connector; s2: activating a first driving device, driving a sensing element to move towards a terminal of the cable connector to contact with a free end of the terminal within the housing, and sensing a displacement of the sensing element by a displacement sensor, thereby obtaining an assembly depth of the terminal in the housing according to the displacement of the sensing element.

Fig. 1 is a schematic view of a prior art cable connector. Fig. 2 is a perspective view of a detection device adapted to detect an assembly depth of a terminal of a cable connector in a housing thereof according to an embodiment of the present disclosure. Fig. 3 is another perspective view of the detecting device shown in fig. 2. Fig. 4 is a plan view of the detection device shown in fig. 2. Fig. 5 is a front view of the detecting device shown in fig. 2. Fig. 6 is a schematic view of a positioning plate, a sensing element and a cable connector of a detection apparatus according to an embodiment of the present disclosure.

As shown in fig. 2 to 5, in an exemplary embodiment, the detecting device 100 includes a positioning assembly 10 adapted to position a housing 202 of the cable connector 200. The detecting device 100 further comprises a detecting assembly 20, the detecting assembly 20 comprises a first driving device 21 and a sensing element 22, the sensing element 22 is mounted on the first driving device 21 to move towards the terminal 201 (shown in fig. 1) of the cable connector 200 under the driving of the first driving device 21 to contact with the free end of the terminal 201 located in the housing 202. The sensing assembly 20 further includes a displacementA sensor 23, the displacement sensor 23 being mounted on the first driving means 21 to move in a moving direction of the sensing element 22 by the driving of the first driving means 21, and the displacement sensor 23 being connected with the sensing element 22 such that the displacement sensor 23 senses a displacement S of the sensing element 22 when the sensing element 22 is in contact with the free end of the terminal 201_MeasuringSo as to be based on the displacement S of the sensing element 22 sensed by the displacement sensor 23_MeasuringObtaining a fitting depth S of the terminal 201 in the housing 202 of the cable connector 200, the fitting depth S of the terminal 201 in the housing 202 of the cable connector 200 being calculated by:

S＝S_measuring-S₀

In the formula, S_MeasuringIn order to sense the displacement of the element 22,

S₀is the distance between the end of housing 202 opposite the cable connection end of positioned cable connector 200 and the initial position of sensing element 22.

As shown in fig. 2 to 5, in an exemplary embodiment, the positioning assembly 10 includes a positioning plate including a first plate 11 and a second plate 12, the first plate 11 being provided with a first through hole 111 extending in a moving direction of the sensing element 22; the second plate 12 is provided with a second through hole 121 extending in the moving direction of the sensing element 22, the center line of the second through hole 121 is collinear with the center line of the first through hole 111, and the diameter of the second through hole 121 is larger than that of the first through hole 111. In use, the cable connector 200 is inserted into the second through hole 121 of the second board 12, and then the sensing element 22 is driven by the first driving device 21 to move from the initial position toward the cable connector 200, and passes through the first through hole 111 in the first board 11, and then contacts the terminal 201 of the cable connector 200 located in the second through hole 121. Since the center lines of the first through hole 111 and the second through hole 121 are collinear and have different diameters, a step 13 is formed at the junction of the first through hole 111 and the second through hole 121, so that an end of the housing 202 of the cable connector 200 opposite to the cable connection end abuts against the step 13. By inserting the cable connector 200 into the through hole 121 and connecting the end of the housing 202 of the cable connector 200 with the cableThe opposite end abuts against the step 13 to position the housing 202 of the cable connector 200, and the step 13 is used as a reference surface for measurement, and the distance S between the end of the housing 202 of the positioned cable connector 200 opposite to the cable connection end and the initial position of the sensing element 22 is set as the distance S between the end of the housing 202 and the initial position of the sensing element 22₀Equal to the distance between the step 13 and the initial position of the sensing element 22.

In an exemplary embodiment, as shown in fig. 3, the second plate 12 is detachably connected to the first plate 11, such as by a screw connection, a snap connection, or the like. This makes it possible to adapt the detection means to different sizes of cable connectors 200 having similar structures by replacing the second plate 12 having different second through holes 121.

However, it should be noted that, in some other embodiments of the present disclosure, the positioning plate of the positioning assembly 10 may be integrated, and the positioning plate is provided with a through hole extending along the moving direction of the sensing element 22 for inserting the cable connector 200. A step 13 is provided on the sidewall of the through hole so that an end of the housing 202 of the cable connector 200 opposite to the cable connection end abuts against the step 13. The housing 202 of the cable connector 200 is positioned by inserting the cable connector 200 into the through hole such that the end of the housing 202 of the cable connector 200 opposite to the cable connection end abuts against the step 13, and the step 13 serves as a measurement reference surface.

It should be noted that in some other embodiments of the present disclosure, other positioning assemblies suitable for positioning the housing 202 of the cable connector 200 may be adopted, such as a clamping mechanism, by which the housing 202 is positioned relative to the sensing element 22, when in use, the sensing element 22 is driven by the first driving device 21 to move from the initial position toward the cable connector 200 to contact with the free ends of the terminals 201 of the cable connector 200, and when the sensing element 22 is in contact with the free ends of the terminals 201, the displacement S between the initial position and the position of the sensing element 22 when in contact with the terminals 201 is sensed by the displacement sensor 23, so that the displacement S between the initial position and the position of the sensing element 22 when in contact with the terminals 201 is sensed by the displacement sensor 23_MeasuringTo obtain the terminal 201 in the housing 20 of the cable connector 2002, assembly depth S.

As shown in fig. 2 to 5, in an exemplary embodiment, the positioning assembly 10 further includes a supporting substrate 14, the positioning plate 10 is connected to a first end of the supporting substrate 14 in a moving direction of the sensing element 22, and the first driving device 21 is disposed on the supporting substrate 14. The positioning assembly 10 further includes a supporting base 15, the supporting base 15 is slidably connected to the supporting base 14 in the moving direction of the sensing element 22, and includes a bottom plate 151 and a first side plate 152 connected to the bottom plate 151, and the first side plate 152 faces a second end of the supporting base 14 opposite to the first end. The positioning assembly 10 further comprises a second driving device 16 and at least one elastic member 17 (e.g. a spring), wherein the second driving device 16 is connected to the support 15 and adapted to drive the support 15 to slide in the moving direction of the sensing element 22; at least one elastic member 17 is disposed between the second end of the support base plate 14 and the first side plate 152. Thus, when the second driving device 16 drives the supporting base 15 to move in the moving direction of the sensing element 22, so as to drive the supporting substrate 14 slidably connected to the supporting base 15 and the first driving device 21, the sensing element 22, the displacement sensor 23, the positioning plate 10, etc. on the supporting substrate 14 to move in the moving direction of the sensing element 22, so that the end of the housing 202 of the cable connector 200 opposite to the cable connection end is inserted into the through holes 111, 121 until the at least one elastic member 17 is compressed, it can be ensured that the end of the housing 202 of the cable connector 200 opposite to the cable connection end abuts against the step 13.

As shown in fig. 2 to 5, in an exemplary embodiment, the first driving means 21 comprises a first cylinder and a first piston rod, the first cylinder being mounted on the support base plate 14; which is slidably mounted in the first cylinder and reciprocally movable in the direction of movement of the sensing element 22.

As shown in fig. 2 to 5, in an exemplary embodiment, a second slide rail 141 and a slide 142 cooperating with the second slide rail are disposed on the support substrate 14, the slide 142 is connected with the first piston rod, and the sensing element 22 and the displacement sensor 23 are disposed on the slide 142. Thus, when the sliding member 142 is moved along the moving direction of the sensing element 22 by the first piston rod, the sensing element 22 and the displacement sensor 23 can be driven to move in the moving direction of the sensing element 22. Further, by the cooperation of the slider 142 and the second slide rail 141, it is possible to ensure that the moving directions of the sensing element 22 and the displacement sensor 23 do not deviate.

As shown in fig. 2 to 5, in an exemplary embodiment, the second driving device 16 includes a base 161, a second cylinder and a second piston rod, the second cylinder being mounted on the base 161; the second piston rod is slidably mounted in the second cylinder and is capable of moving reciprocally in the moving direction of the sensing element 22, and the support base 15 is mounted on the second piston rod to move reciprocally in the moving direction of the sensing element 22 under the driving of the second piston rod.

As shown in fig. 2 to 5, in an exemplary embodiment, the supporting base 15 further includes at least one guide 153 connected to the bottom plate 151 and parallel to the moving direction of the sensing element 22 to guide the supporting substrate 14 to move in the moving direction of the sensing element 22.

As shown in fig. 6, in an exemplary embodiment, the second board 12 is further provided with a coupling groove 122 extending radially outward from the second through hole to couple with a radial extension 204 of the housing 202 of the cable connector 200 and prevent the cable connector 200 from being at least partially detached from the second through hole 121 during the testing process.

As shown in fig. 2-5, in an exemplary embodiment, the detection apparatus further comprises a clamping mechanism 30, the clamping mechanism 30 being configured to clamp the cable 203 of the cable connector 200 to prevent the cable 203 from moving relative to the positioning plate and thus moving the cable connector 200 during the detection process.

According to another aspect of the present disclosure, there is also provided a method of detecting the fitting depth of the terminal 201 of the cable connector 200 using the above-described detecting device.

Fig. 7 is a flowchart illustrating a method of detecting a terminal fitting depth of the cable connector according to the above-described detecting apparatus of the present disclosure. As shown in fig. 7, the detection method includes the following steps:

s1: positioning the housing 202 of the cable connector 200;

s2: activating the first driving means 21, driving the sensing element 22 to move towards the terminal 201 of the cable connector 200 to contact the free end of the terminal 201 located within the housing 202, and sensing the displacement of the sensing element 22 by the displacement sensor 23, thereby according to the displacement S of the sensing element 22_MeasuringThe fitting depth S of the terminal 201 in the housing 202 is obtained.

In an exemplary embodiment, in step S1, the housing 201 of the cable connector 200 is positioned by inserting the cable connector 200 into the through hole 121 of the positioning plate 10 and abutting an end of the housing 202 of the cable connector 200 opposite to the cable connection end against the step 13 of the through hole. After positioning the housing 201 of the cable connector 200, the sensing element 22 is driven by the first driving means 21 to be gradually inserted into the through hole 111 from the opposite side of the positioning plate 10 to the insertion side of the cable connector to be in contact with the free end of the terminal 201 located in the through hole 121.

In an exemplary embodiment, inserting the cable connector 200 into the through hole 121 of the positioning plate 10 and abutting an end of the housing 202 of the cable connector 200 opposite to the cable connection end against the step 13 is performed by activating the second driving device 16 to drive the supporting seat 15 to move toward the terminal 201 of the cable connector 200 along the moving direction of the sensing element 22, so that the cable connector 200 is inserted into the through hole 111 until the elastic member 17 is compressed.

In an exemplary embodiment, in step S2, obtaining the fitting depth of the terminal 201 in the housing 202 according to the displacement of the sensing element 22 is the displacement S of the sensing element 22 sensed by the displacement sensor 23_MeasuringReducing the distance S between the end of the housing 201 of the cable connector 200 opposite the cable connection end and the initial position of the sensing element 22₀To obtain a distance S of the terminal 201 to an end of the housing 202 opposite to the cable connection end, i.e., a fitting depth S of the terminal 201 in the housing 202.

According to the detection device and the detection method for detecting the terminal assembly depth of the cable connector according to the above embodiments of the present disclosure, the housing of the cable connector is positioned, then the first driving device drives the sensing element and the displacement sensor to move towards the terminal of the cable connector, when the sensing element is in contact with the terminal, the displacement of the sensing element is sensed by the displacement sensor, and the distance between the terminal of the cable connector and the end of the housing of the cable connector opposite to the cable connection end, that is, the assembly depth of the terminal in the housing, is obtained according to the displacement of the sensing element. The detection device is easy to detect, does not need to use a laser or a vision system, only needs one displacement sensor, and is more stable and cheaper.

It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.

Having described preferred embodiments of the present disclosure in detail, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and the disclosure is not limited to the exemplary embodiments set forth herein.