Contact detection device and detection method for laser locking head

Abstract

The invention provides a contact detection device and method for a laser locking head, and relates to the technical field of laser equipment detection.The detection device comprises a cylinder and a detection assembly, and the cylinder comprises a center cylinder, an end handle located at one end of the center cylinder and a guide head located at one end of the center cylinder; the guide head is provided with a conical positioning head; the positioning head is matched with the reducing section of the column sleeve of the laser locking head; the detection assembly comprises a first conducting ring and a second conducting ring which are arranged at an interval, and the distance between the first conducting ring and the second conducting ring is the same as the standard distance between the two contacts; the first conducting ring and the second conducting ring are connected with wires respectively. The first conducting ring and the second conducting ring are in clearance fit with the inner side wall of a column sleeve of the laser locking head to be detected. The detection device provided by the invention is simple in structure, high in detection reliability, convenient to use, low in dependence on experience and operation of detection personnel, and beneficial to wide application on a production line.

Description

Technical Field

[0001] The present application relates to the technical field of laser devices, and in particular to a contact detection device and a detection method for a laser locking head. Background Art

[0002] After the contacts are assembled in the fiber optic interface, the contacts are located inside the fiber optic interface. Therefore, it is difficult to accurately observe with the naked eye whether the position of the contacts is properly installed. Moreover, in order to ensure the conduction situation after the fiber optic is connected, it is first necessary to ensure whether the contacts can conduct normally. Therefore, the detection of whether the contacts of the fiber optic interface can conduct is very important. In the prior art, the detection of the fiber optic interface on the laser head is usually directly detected by a multimeter, which has insufficient detection reliability and low efficiency, and relies heavily on the experience and operation of the detection personnel, making it difficult to be widely applicable directly on the production line. Summary of the Invention

[0003] The purpose of the present application is to provide a contact detection device for a laser locking head, which has a simple structure, high detection reliability, is easy to use, has low dependence on the experience and operation of the detection personnel, and is conducive to wide use on the production line.

[0004] The present application also provides a detection method for detecting the contacts of a laser locking head, which can quickly and simply be used to detect whether the installation of the contacts of the laser locking head is standard and whether it can conduct electricity.

[0005] To achieve the above technical purpose, in the first aspect, the present application provides a contact detection device for a laser locking head, including:

[0006] A cylinder, including a central column, an end handle at one end of the central column, and a guiding head at one end of the central column; the guiding head is provided with a conical positioning head; the positioning head matches the stepped diameter section of the column sleeve of the laser locking head to be detected;

[0007] A detection assembly, including a first conductive ring and a second conductive ring sleeved on the central column and arranged at intervals, the distance between the first conductive ring and the second conductive ring is the same as the standard distance between two contacts of the contact assembly of the laser locking head to be detected; the first conductive ring and the second conductive ring are respectively connected with wires for connecting an external conductive detection device;

[0008] Wherein, the first conductive ring and the second conductive ring are in clearance fit with the inner side wall of the column sleeve of the laser locking head to be detected.

[0009] Further, in some embodiments of the present application, the clearance size between the first conductive ring and the second conductive ring and the inner side wall of the column sleeve of the laser locking head to be detected is smaller than the spring-back size of the contacts of the contact assembly.

[0010] Further, in some embodiments of the present application, the gap between the first conductive ring and the second conductive ring and the inner side wall of the column sleeve of the laser locking head to be detected is not higher than 0.2 mm.

[0011] Further, in some embodiments of the present application, a first insulating ring is provided between the first conductive ring and the end handle, a second insulating ring is provided between the first conductive ring and the second conductive ring, and a third insulating ring is provided between the second conductive ring and the guiding head;

[0012] The maximum outer diameter of the third insulating ring and / or the second insulating ring and / or the guiding head is not less than the outer diameters of the first conductive ring and the second conductive ring.

[0013] Further, in some embodiments of the present application, the guiding head further includes a locking section; the maximum outer diameter of the locking section is higher than the outer diameters of the first conductive ring and the second conductive ring;

[0014] The positioning head is integrally connected to the locking section and is arranged on the side of the locking section away from the end handle.

[0015] Further, in some embodiments of the present application, at least one guiding groove extending along the axial direction of the column body and a locking groove extending obliquely outward from the side wall of the guiding groove and communicating with the guiding groove are provided on the surface of the locking section;

[0016] The depths and widths of the guiding groove and the locking groove match the locking pins of the laser locking head to be detected.

[0017] Further, in some embodiments of the present application, the angle between the extending direction of the locking groove and the guiding groove is 70-90°.

[0018] Further, in some embodiments of the present application, the end handle includes an upper handle and a pressing ring connected to the upper handle; a pressing groove is provided on the outer side wall of the pressing ring, and an elastic pressing ring for pressing the pressing ring against the central column is provided in the pressing groove;

[0019] The outer diameter of the elastic pressing ring is in interference fit with the inner diameter of the column sleeve of the laser locking head to be detected.

[0020] Second, the present application also provides a method for detecting contacts on a laser locking head, using the contact detection device for a laser locking head described in the first aspect to detect the contacts on the laser locking head to be detected, which specifically includes the following steps:

[0021] A laser locking head to be tested and a contact detection device are provided, wherein a contact assembly is installed on the laser locking head; a conductive wire of the contact detection device is externally connected to a conductive detection device for detecting whether the contact of the laser locking head is conducting current;

[0022] Insert the contact detection device into the column sleeve of the laser locking head, so that the guide head of the contact detection device extends into the reduced diameter section of the column sleeve and abuts against the inner side wall of the reduced diameter section;

[0023] Observe the current / voltage / resistance displayed on the conductive detection device to determine whether the contacts of the contact assembly of the laser locking head are conducting.

[0024] Furthermore, in some embodiments of the present application, the detection method further includes a locking detection step, and the locking detection step includes:

[0025] Make the guide groove of the contact detection device correspond to the locking pin of the laser locking head, and insert the contact detection device into the column sleeve of the laser locking head;

[0026] Rotating the contact detection device to allow the locking pin to enter the locking groove;

[0027] Apply pressure or tension to the end handle along the extension direction of the column, observe whether the contact detection device moves, and judge the locking effect of the locking pin according to the observation result;

[0028] In the locked state, the current / voltage / resistance displayed on the conductive detection device is observed to determine whether the contacts of the contact assembly of the laser locking head are conducting.

[0029] The present application provides a contact detection device and a detection method for a laser locking head, which utilizes a contact detection pen compatible with the laser locking head, and adopts a matching fixed conductive ring and an electrical detection device electrically connected to the conductive ring to perform an inserted electrical conduction detection on the contacts on the locking head to be detected, thereby simplifying and standardizing the contact detection, and avoiding the problems of poor stability, slow speed, and inability to standardize the operation caused by directly using a multimeter for contact detection in the prior art; in addition, since the spacing between the matching fixed conductive rings is a standard spacing, it can be used not only to detect whether the contacts are electrically conductive, but also to detect whether the assembly of the contacts meets the standards, thereby realizing the simultaneous detection of the electrical conduction and assembly of the locking head contacts.

[0030] The present application also provides a method for detecting contacts on a laser locking head. The detection method is simple and easy to implement, easy to promote and use, and is conducive to realizing process-based and standardized detection of laser locking heads on production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 Schematic structural diagram of a contact detection device for a laser locking head in some embodiments provided by the present application;

[0033] Figure 2 Exploded view of a contact detection device for a laser locking head in some embodiments provided by the present application;

[0034] Figure 3 Cross-sectional view of a contact detection device for a laser locking head in some embodiments provided by the present application in the axial direction;

[0035] Figure 4 Cross-sectional view of the structure of the laser locking head corresponding to the contact detection device for the laser locking head in some embodiments provided by the present application;

[0036] Figure 5 Cross-sectional view when the contact detection device for the laser locking head in some embodiments provided by the present application detects the laser locking head;

[0037] Main element symbol description:

[0038] 10 - Cylinder, 11 - Central column, 12 - End handle, 121 - Upper handle, 122 - Compression ring, 1221 - Elastic retaining ring, 13 - Guide head, 131 - Positioning head, 132 - Locking section, 1321 - Guide groove, 1322 - Locking groove, 21 - First conductive ring, 22 - Second conductive ring, 23 - Wire, 24 - First insulating ring, 25 - Second insulating ring, 26 - Third insulating ring, 27 - Inner insulating ring; 30 - Cylinder sleeve, 31 - Contact assembly, 32 - Locking pin. Specific embodiments

[0039] The following will clearly and completely describe the technical solutions of the present application in combination with the embodiments. Obviously, the described embodiments are some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0040] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0041] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0042] The existing laser locking head (fiber optic interface) generally includes a ferrule 30 for inserting the optical fiber, a locking pin 32 for locking the optical fiber, and a contact assembly 31 disposed on the side wall of the ferrule 30 for electrically connecting with the optical fiber. The contact assembly 31 generally includes a circuit board, two contacts disposed on the circuit board and electrically connected to the circuit board, and an electric wire 23 for external power supply. During use, the optical fiber is inserted into the ferrule 30 of the laser locking head and the optical fiber is locked by the locking pin 32. At this time, the optical fiber contacts the two contacts on the contact assembly 31 to achieve electrical conduction. Therefore, whether the contact assembly 31 can be normally electrically connected to the optical fiber after being installed on the ferrule 30 is one of the keys to determining whether the locking head is qualified. Since the contact assembly 31 is disposed on the inner side wall of the channel of the ferrule 30 for inserting the optical fiber, a detection device needs to be inserted deeply into it for detection. Moreover, the contact range is small and two contacts are required to be electrically connected to the detection device simultaneously to form an electrical circuit, so as to determine whether the contact assembly 31 is electrically conductive. Therefore, when directly using a multimeter for detection in the prior art, the difficulty is relatively high and the stability is not high. Moreover, since most of the structures of the ferrule 30 other than those for installing the contact assembly 31 are also made of conductive materials such as metal, during detection, even if the contacts are not touched, a conductive circuit may be formed, thus easily leading to detection errors. Therefore, the present application proposes a contact detection device for a laser locking head. Refer to Figures 1 to 3 , the contact detection device includes:

[0043] A cylinder 10, including a central column 11, an end handle 12 located at one end of the central column 11, and a guiding head 13 located at one end of the central column 11; the guiding head 13 is provided with a conical positioning head 131; the positioning head 131 matches the reduced-diameter section of the ferrule 30 of the laser locking head to be detected;

[0044] The detection assembly includes a first conductive ring 21 and a second conductive ring 22 sleeved on the central column 11 and spaced apart; the distance between the first conductive ring 21 and the second conductive ring 22 is the same as the standard distance between the two contacts of the contact assembly 31 of the laser locking head to be detected; the first conductive ring 21 and the second conductive ring 22 are respectively connected with wires 23 for external conductive detection equipment;

[0045] Among them, the first conductive ring 21 and the second conductive ring 22 are in clearance fit with the inner side wall of the sleeve 30 of the laser locking head to be detected, and at least a part of the column body 10 is in contact with or even in close contact with the inner side wall of the sleeve 30 of the laser locking head to be detected after the column body 10 is inserted into the sleeve 30 of the laser locking head to be detected, so that after the detection device is inserted into the sleeve 30, the first conductive ring 21 and the second conductive ring 22 do not contact other places on the inner surface of the sleeve 30 except the contact points, and there is a gap with the inner side wall surface of the sleeve 30 except the contact points, ensuring that the first conductive ring 21 and the second conductive ring 22 only contact the contact points, achieving good detection effectiveness. The distance between the first conductive ring 21 and the second conductive ring 22 is the standard distance between the contact points, so that when detecting whether the contact points are electrically conductive, the distance between the contact points can be synchronously detected to see if it meets the standard.

[0046] That is: when the column body 10 is inserted into the sleeve 30 and the positioning head 131 is in tight contact with the reduced-diameter section of the sleeve 30, the column body 10 is coaxial or infinitely close to coaxial with the sleeve 30, and there is a gap between the first conductive ring 21, the second conductive ring 22 and the part of the column body 10 between the first conductive ring 21 and the second conductive ring 22 and the sleeve 30, and they do not contact each other.

[0047] It should be noted here that the distance between the first conductive ring 21 and the second conductive ring 22 being the standard distance between the contact points means that the distance between the first conductive ring 21 and the second conductive ring 22 is equal to or close to the set standard distance between the contact points, or within the allowable error range of qualified products.

[0048] In some embodiments, the clearance between the first conductive ring 21 and the second conductive ring 22 and the inner side wall of the sleeve 30 of the laser locking head to be detected is not higher than 0.2 mm.

[0049] In some embodiments, at least part of the portion of the column body 10 that is in contact with or even in close contact with the inner side wall of the sleeve 30 is disposed between the second conductive ring 22 and the conical positioning head 131. For the convenience of description, this part is hereinafter simply referred to as: "tight contact portion". This tight contact portion causes the column body 10 to exert an extrusion force on the contact points of the contact point assembly 31 to push them out of the sleeve 30 when the column body 10 is inserted into the sleeve 30, and at the same time contacts the portion of the sleeve 30 below the contact point assembly 31 after passing through the contact point assembly 31, achieving a certain positioning effect.

[0050] Among them, the tight contact portion being provided on the column body 10 is manifested as a raised structure compared with the main cylindrical surface of the column body 10. It can be an annular section, or a C-shaped section or an arc-shaped protrusion provided corresponding to the contact point assembly 31. Preferably, the raised surface of the raised structure is an arc surface to facilitate the tight contact portion to push into the sleeve 30.

[0051] It should be noted that in the prior art, the contact component 31 on the laser locking head is usually a metal part with elasticity or a resilient structure and is conductive. In this application, the contacts of the contact component 31 are also set as elastic parts or metal parts with a resilient structure. This structure is in the prior art and those skilled in the art can obtain it by purchasing or preparing from the prior art. Therefore, it will not be described in detail one by one in this application, which does not affect those skilled in the art to understand or implement this solution.

[0052] In this application, the clearance size between the first conductive ring 21 and the second conductive ring 22 and the inner side wall of the bushing 30 of the laser locking head to be detected is smaller than the resilient size of the contacts of the contact component 31, so that after the contacts of the contact component 31 are squeezed and pushed, they rebound and contact the first conductive ring 21 and the second conductive ring 22, thereby realizing the electrical connection between the contacts and the first conductive ring 21 and the second conductive ring 22.

[0053] In this application, the setting of the tight - fitting part and the clearance between the first conductive ring 21, the second conductive ring 22 and the inner side wall of the bushing 30 can be used to detect the resilience of the contacts, avoiding non - conduction during use caused by poor resilience or resilient failure of the contacts, and realizing the simultaneous detection of the conductivity and resilience of the contacts.

[0054] In this application, a first insulating ring 24 is provided between the first conductive ring 21 and the end handle 12, a second insulating ring 25 is provided between the first conductive ring 21 and the second conductive ring 22, and a third insulating ring 26 is provided between the second conductive ring 22 and the guide head 13; the maximum outer diameter of the third insulating ring 26 and / or the second insulating ring 25 and / or the guide head 13 is not less than the outer diameters of the first conductive ring 21 and the second conductive ring 22. An inner insulating ring 27 is also provided between the first conductive ring 21, the second conductive ring 22 and the column body 10.

[0055] The first insulating ring 24 separates and insulates between the first conductive ring 21 and the end handle 12; the second insulating ring 25 separates and insulates between the first conductive ring 21 and the second conductive ring 22; the third insulating ring 26 separates and insulates between the second conductive ring 22 and the guide head 13. The inner insulating ring 27 separates and insulates the first conductive ring 21, the second conductive ring 22 from the column body 10.

[0056] Among them, the inner insulating rings 27 corresponding to the first conductive ring 21 and the second conductive ring 22 can be provided separately or integrally. When the inner insulating rings 27 of the first conductive ring 21 and the second conductive ring 22 are provided separately, that is, when a first inner insulating ring is provided on the inner side corresponding to the first conductive ring 21 and a second inner insulating ring is provided on the inner side corresponding to the second conductive ring 22, the first inner insulating ring can be provided integrally with the first insulating ring 24 or separately; the second inner insulating ring can be provided integrally with the third insulating ring 26 or separately. It is realized that both the first conductive ring 21 and the second conductive ring are insulated from the column body 10 and are only electrically connected to the contacts.

[0057] In some embodiments, both the first conductive ring 21 and the second conductive ring 22 are T-shaped rings with a "T"-shaped cross-section or L-shaped rings with an "L"-shaped cross-section, that is, the height of the outer ring surface of the first conductive ring 21 and the second conductive ring 22 is higher than the height of the inner ring surface of the first conductive ring 21 and the second conductive ring 22, so that at least one step is formed on the inner surface of the first conductive ring 21 and the second conductive ring 22, and welding holes are provided on the step for connecting the wire 23. Correspondingly, holes for the wire 23 to pass through can be provided on the inner insulating ring 27, or the thickness can be set to match the height of the inner ring surface of the first conductive ring 21 and the second conductive ring 22, so that there is a certain gap between the inner insulating ring 27 and the first insulating ring 24 / second insulating ring 25 / third insulating ring 26 on the upper and lower sides, which can accommodate the passing of the wire 23.

[0058] In some embodiments, the first insulating ring 24 and the third insulating ring 26 have a certain thickness, such as their thickness is not less than the distance between the two contacts of the contact assembly 31 or not less than the width to the first conductive ring 21 / second conductive ring 22, so that when the detection device is inserted into the column sleeve 30, even if the positions of the contacts of the contact assembly 31 and the first conductive ring 21 and the second conductive ring 22 are somewhat misaligned, the situation where the contacts are electrically connected to the column body 10 and the conductive ring at the same time will not occur, avoiding the detection result being inconsistent with the actual situation of the laser locking head.

[0059] In some embodiments, the guiding head 13 further includes a locking section 132; the maximum outer diameter of the locking section 132 is higher than the outer diameters of the first conductive ring 21 and the second conductive ring 22; the positioning head 131 is integrally connected to the locking section 132 and is provided on the side of the locking section 132 away from the end handle 12.

[0060] Among them, when the guiding head 13 is provided with a locking section 132, a locking member is provided on the corresponding laser locking head, and the locking member is correspondingly provided with the locking structure on the locking section 132, so as to facilitate the positioning of the detection device and the locking detection of the laser locking head.

[0061] In some embodiments, referring to Figure 4 , when a locking pin 32 for locking the optical fiber is provided on the laser locking head, at least one guiding groove 1321 extending along the axis of the cylinder 10 and a locking groove 1322 extending obliquely outward from the side wall of the guiding groove 1321 and communicating with the guiding groove 1321 are provided on the surface of the locking section 132; the depths and widths of the guiding groove 1321 and the locking groove 1322 match the locking pin 32 of the laser locking head to be detected.

[0062] It should be noted that when the locking member or locking structure adopted by the laser locking head is other locking members or locking structures, the structure of the locking section 132 can also be adjusted correspondingly to achieve positioning and locking detection.

[0063] In the above embodiments of the present application, the guiding groove 1321 and the locking groove 1322 form a mutually communicating inverted "Bu" - shaped groove. The groove widths of the guiding groove 1321 section and the locking groove 1322 section of the inverted "Bu" - shaped groove are both adapted to the locking pin 32, so that the locking pin 32 can slide therein. The insertion angle of the locking pin 32 of the detection device is positioned by the guiding groove 1321 extending along the axis of the cylinder 10, that is, vertically positioned, and then the insertion depth of the detection device is realized by the cooperation of the locking groove 1322 extending obliquely along the surface of the cylinder 10 and the locking pin 32, achieving horizontal positioning, and realizing double positioning in addition to the positioning of the conical surface of the positioning head 131 and the variable - diameter section of the cylinder sleeve 30.

[0064] In some other embodiments, when the cylinder sleeve 30 does not have a variable - diameter section, the inverted "Bu" - shaped groove of the locking section 132 and the locking member or locking structure on the cylinder sleeve 30 can also realize the horizontal and vertical positioning of the detection device, and then determine the detection position of the detection device.

[0065] In some embodiments, the angle between the extending directions of the locking groove 1322 and the guiding groove 1321 is 70 - 90°. The connection between the locking groove 1322 and the guiding groove 1321 has a smooth transition to facilitate the locking pin 32 to better enter the locking groove 1322. Preferably, the angle between the extending directions of the locking groove 1322 and the guiding groove 1321 is 75 - 85°, so as to facilitate the locking and positioning of the locking pin 32 and avoid the lateral slip of the locking pin 32 in the locking groove 1322.

[0066] It should be noted that the number of the inverted "Bu" - shaped grooves on the locking section 132 can be one or more. The set number can be set corresponding to the number of the locking members or locking structures, or can be more than the number of the locking members or locking structures.

[0067] In some embodiments, the end handle 12 includes an upper handle 121 and a clamping ring 122 connected to the upper handle 121; a clamping groove is provided on the outer wall of the clamping ring 122, and an elastic clamping ring 1221 is provided in the clamping groove for enabling the clamping ring 122 to clamp the center column 11; the outer diameter of the elastic clamping ring 1221 is interference fit with the inner diameter of the column sleeve 30 of the laser locking head to be detected, so as to ensure that the axis of the column 10 and the column sleeve 30 are coaxial or infinitely close to coaxial.

[0068] It should also be noted that, since the first conductive ring 21 and the second conductive ring 22 are respectively connected to the wire 23 of the external conductive detection device, such as a multimeter, the column 10 is provided with a space for arranging the wire 23. In some embodiments, the central column 11 of the column 10 includes two separate columns, and there is a spacing between the facing surfaces and the sides of the two columns. The clamping ring 122 is sleeved on the outside of the two columns to clamp the two columns, and the inner side wall of the clamping ring 122 and the column form a space through which the wire 23 can pass. The corresponding column handle is provided with a wire 23 hole connected to the space between the two columns, so that the wire 23 can pass through the column 10.

[0069] During assembly, the wires 23 connected to the first conductive ring 21 and the second conductive ring 22 respectively enter the space between the facing surfaces of the two posts from the gap between the side walls of the two posts, and then pass through the holes of the wires 23 to pass through the column 10. Preferably, the first conductive ring 21 and the second conductive ring 22 respectively enter the space between the facing surfaces of the two posts from different positions between the two posts.

[0070] In addition, the number of the columns can be more, such as three columns, four columns, and more. In other embodiments, the space for arranging the wires 23 on the columns can also be formed by wire holes or wire grooves 23 provided on the columns instead of being surrounded by the columns.

[0071] In a second aspect, the present application further provides a method for detecting contact points on a laser locking head, using the contact point detection device for a laser locking head described in the first aspect to detect the contact points on the laser locking head to be detected, which specifically includes the following steps:

[0072] A laser locking head to be tested and a contact detection device are provided, wherein a contact assembly 31 is installed on the laser locking head; a conductive wire 23 of the contact detection device is externally connected to a conductive detection device for detecting whether the contact of the laser locking head is conducting current;

[0073] See also Figure 5, insert the contact detection device into the bushing 30 of the laser locking head, so that the guiding head 13 of the contact detection device extends into the reduced-diameter section of the bushing 30 and abuts against the inner side wall of the reduced-diameter section;

[0074] Observe the current / voltage / resistance displayed on the conductive detection device to determine whether the contacts of the contact assembly 31 of the laser locking head are electrically conductive.

[0075] In some embodiments, the detection method further includes a locking detection step, and the locking detection step includes:

[0076] Align the guiding groove 1321 of the contact detection device with the locking pin 32 of the laser locking head, and insert the contact detection device into the bushing 30 of the laser locking head;

[0077] Rotate the contact detection device to make the locking pin 32 enter the locking groove 1322;

[0078] Apply pressure or tension to the end handle 12 along the extending direction of the column body 10, observe whether the contact detection device moves, and judge the locking effect of the locking pin 32 according to the observation result;

[0079] In the locked state, observe the current / voltage / resistance displayed on the conductive detection device to determine whether the contacts of the contact assembly 31 of the laser locking head are electrically conductive.

[0080] It should be noted that the detection device and the detection method provided in this application can simultaneously detect whether the two contacts of the contact assembly 31 of the laser locking head are electrically conductive, whether the distance between the two contacts meets the standard, whether the resilience of the contacts still exists, and can also detect whether the locking position of the locking pin 32 meets the standard and whether the locking effect is effective through the guiding groove 1321 and the locking groove 1322 of the locking section 132.

[0081] In the process of specific implementation and application, the detection device can also be electrically connected to a controller and an alarm device or other optoelectronic displays electrically connected to the controller for quickly feedbacking the detection results, such as indicator lights, display keys on the display screen, etc., so that those skilled in the art can quickly understand that the detection result is unqualified without personal evaluation.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A contact detection device for a laser locking head, characterized in that: include: The column body comprises a central column, an end handle at one end of the central column, and a guide head at one end of the central column; the guide head is provided with a conical positioning head; the positioning head matches the diameter-reducing section of the column sleeve of the laser locking head to be detected; The detection assembly comprises a first conductive ring and a second conductive ring which are sleeved on the central column and spaced apart from each other, wherein the spacing between the first conductive ring and the second conductive ring is the same as the standard spacing between two contacts of the contact assembly of the laser locking head to be detected; the first conductive ring and the second conductive ring are respectively connected to wires of an external conductive detection device; Wherein, the first conductive ring and the second conductive ring are in gap fit with the inner side wall of the column sleeve of the laser locking head to be detected.

2. The contact point detection device for a laser locking head according to claim 1, characterized in that: The gap size between the first conductive ring, the second conductive ring and the inner side wall of the column sleeve of the laser locking head to be detected is smaller than the rebound size of the contact of the contact assembly.

3. The contact point detection device for a laser locking head according to claim 1, characterized in that: The gap between the first conductive ring, the second conductive ring and the inner side wall of the column sleeve of the laser locking head to be detected is no greater than 0.2 mm.

4. The contact point detection device for a laser locking head according to any one of claims 1 to 3, characterized in that: A first insulating ring is provided between the first conductive ring and the end handle, a second insulating ring is provided between the first conductive ring and the second conductive ring, and a third insulating ring is provided between the second conductive ring and the guide head; an inner insulating ring is also provided between the first conductive ring and the second conductive ring and the column; The maximum outer diameter of the third insulating ring and / or the second insulating ring and / or the guide head is not less than the outer diameter of the first conductive ring and the second conductive ring.

5. The contact point detection device for a laser locking head according to claim 4, characterized in that: The guide head further comprises a locking section; the maximum outer diameter of the locking section is higher than the outer diameters of the first conductive ring and the second conductive ring; The positioning head is integrally connected to the locking section and is arranged on a side of the locking section away from the end handle.

6. The contact point detection device for a laser locking head according to claim 5, characterized in that: The locking section surface is provided with at least one guide groove extending along the axial direction of the column and a locking groove extending obliquely outward from the side wall of the guide groove and communicating with the guide groove; The depth and width of the guide groove and the locking groove match the locking pin of the laser locking head to be detected.

7. The contact point detection device for a laser locking head according to claim 6, characterized in that: The included angle between the locking groove and the extending direction of the guide groove is 70-90°.

8. The contact point detection device for a laser locking head according to claim 1, characterized in that: The end handle comprises an upper handle and a clamping ring connected to the upper handle; a clamping groove is arranged on the outer side wall of the clamping ring, and an elastic clamping ring is arranged in the clamping groove for clamping the clamping ring against the central column; The outer diameter of the elastic pressure ring is interference-fitted with the inner diameter of the column sleeve of the laser locking head to be detected.

9. A method for detecting contact points on a laser locking head, characterized in that: The contact point detection device for a laser locking head according to any one of claims 1 to 8 is used to detect the contact point on the laser locking head to be detected, which specifically comprises the following steps: A laser locking head to be tested and a contact detection device are provided, wherein a contact assembly is installed on the laser locking head; a conductive wire of the contact detection device is externally connected to a conductive detection device for detecting whether the contact of the laser locking head is conducting current; Insert the contact detection device into the column sleeve of the laser locking head, so that the guide head of the contact detection device extends into the reduced diameter section of the column sleeve and abuts against the inner side wall of the reduced diameter section; Observe the current / voltage / resistance displayed on the conductive detection device to determine whether the contacts of the contact assembly of the laser locking head are conducting.

10. The contact point detection method on the laser locking head according to claim 9, characterized in that: The invention also includes a locking detection step, wherein the locking detection step includes: Make the guide groove of the contact detection device correspond to the locking pin of the laser locking head, and insert the contact detection device into the column sleeve of the laser locking head; Rotating the contact detection device to allow the locking pin to enter the locking groove; Apply pressure or tension to the end handle along the extension direction of the column, observe whether the contact detection device moves, and judge the locking effect of the locking pin according to the observation result; In the locked state, the current / voltage / resistance displayed on the conductive detection device is observed to determine whether the contacts of the contact assembly of the laser locking head are conducting.

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