Testing agency

Abstract

An embodiment of the present invention provides a detection mechanism, which relates to the field of surface mounting technology. The detection mechanism includes a replacement mechanism, a needle lowering mechanism and a measuring needle. The measuring needle is used to measure the electronic components on the material strip. The replacement mechanism includes a mounting structure and a positioning structure, the measuring needle is installed on one side of the mounting structure, the positioning structure is arranged on the other side of the mounting structure, and the positioning structure is detachably connected to the needle lowering mechanism. The detection mechanism provided by the present invention can automatically measure the electronic components on the material strip, ensure the accuracy and stability of the detection of the electronic components, and also can achieve the purpose of easy replacement of the detection mechanism through the detachable connection between the replacement mechanism and the needle lowering mechanism.

Description

Technical Field

[0001] The present invention relates to the field of surface mounting technology, in particular to a detection mechanism. Background Art

[0002] The SMT (surface mount technology) industry in China has been developing rapidly in recent years. In the process of development, people's requirements for product quality and structural framework are constantly improving. Surface mount technology is moving towards passive components, and surface mount components are getting smaller and smaller.

[0003] The most troublesome problem in the SMT industry at this stage is that electronic components are increasing in number, their sizes are getting smaller, and their quality is getting higher and higher, which requires factories to strictly control the quality of incoming materials. At present, for most SMT factories, manual inspection of incoming materials is required. The specific process is: get the material tray to be tested, tear open the encapsulated plastic mold, take out the material to be tested under a magnifying glass and put it in a specific testing position, then use the magnifying glass to find the polarity measurement point, and use a handheld bridge measurement probe to measure and record the value.

[0004] Manual inspection of electronic components not only reduces the inspection efficiency, but also leads to inspection errors caused by manual fatigue, increases the failure rate, and further causes a lot of cost waste. Summary of the invention

[0005] The objects of the present invention include, for example, providing a detection mechanism that can automatically measure the electronic components on the material strip to ensure the accuracy and stability of the electronic component detection, while also facilitating the replacement of the detection mechanism through the detachable connection between the replacement mechanism and the needle lowering mechanism.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] An embodiment of the present invention provides a detection mechanism, which includes a replacement mechanism, a needle lowering mechanism and a measuring needle.

[0008] The measuring needle is used to measure the electronic components on the material tape.

[0009] The replacement mechanism includes a mounting structure and a positioning structure. The measuring needle is mounted on one side of the mounting structure, and the positioning structure is arranged on the other side of the mounting structure. The positioning structure is detachably connected to the needle lowering mechanism.

[0010] Optionally, the positioning structure is protruded from the mounting structure, a positioning groove matched with the positioning structure is provided on the needle lowering mechanism, and the positioning structure extends into the positioning groove and is detachably connected to the needle lowering mechanism.

[0011] Optionally, a first positioning surface is provided on the outer side of the positioning structure, and a second positioning surface is provided on the inner peripheral wall of the positioning groove. When the positioning structure extends into the positioning groove and is connected to the needle lowering mechanism, the first positioning surface is in contact with the second positioning surface.

[0012] Optionally, the positioning structure and the positioning groove are both conical, and the first positioning surface and the second positioning surface are both conical surfaces.

[0013] Optionally, a holding structure is provided on the needle lowering mechanism, and the holding structure includes a fixed block and an elastic block. The fixed block is fixedly connected to the needle lowering mechanism, and the elastic block is installed on one end of the fixed block and passes through the inner wall of the positioning groove and extends into the positioning groove. The elastic block can selectively hold against the positioning structure, or release the positioning structure when the positioning structure is subjected to an external force that separates it from the positioning groove.

[0014] Optionally, a slot matching the elastic block is provided on the positioning structure, and when the positioning structure is connected to the needle lowering mechanism, the elastic block extends into the slot and abuts against the inner peripheral wall of the slot.

[0015] Optionally, the mounting structure includes an insulating mounting block and two first shielding structures, and the number of the measuring needles is two.

[0016] The two first shielding structures are respectively installed on two opposite sides of the insulating mounting block to form two mounting areas.

[0017] The positioning structure is mounted on the insulating mounting block or the first shielding structure.

[0018] The two measuring needles are respectively arranged in the two installation areas and are spaced apart.

[0019] Optionally, two first mounting grooves are respectively formed on two opposite sides of the mounting structure, and a second mounting groove is formed on the bottom walls of the two first mounting grooves.

[0020] The two measuring needles are respectively installed in the two second installation grooves.

[0021] The two first shielding structures are respectively installed in the two first installation grooves, and the first shielding structure is in contact with the bottom wall of the first installation groove.

[0022] Optionally, the mounting structure further comprises a metal shielding shell, wherein the metal shielding shell is coated on the first shielding structure and the outer side of the insulating mounting block.

[0023] Optionally, the mounting structure further includes a second shielding structure, which is disposed inside the metal shielding shell and covers the first shielding structure and the outside of the insulating mounting block.

[0024] The beneficial effects of the detection mechanism of the embodiment of the present invention compared with the prior art include, for example:

[0025] The detection mechanism provided by the present invention can drive the installation structure to move through the needle lowering mechanism, and measure the electronic components on the material strip through the measured values ​​on the installation structure, so as to realize automatic measurement of the electronic components, and ensure the detection accuracy and detection stability of the electronic components on the material strip. In addition, the installation structure and the needle lowering mechanism can be detachably connected through the detachable connection between the replacement mechanism and the needle lowering mechanism, and the purpose of easy replacement and maintenance of the detection mechanism can be achieved, thereby improving the convenience of electronic component detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of a detection mechanism provided in an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the exploded structure of a part of the installation structure provided in the embodiment of the present invention.

[0029] Icons: 10-detection mechanism; 11-needle lowering mechanism; 12-replacement mechanism; 13-measuring needle; 110-positioning slot; 111-second positioning surface; 120-mounting hole; 130-holding structure; 131-elastic block; 132-fixing block; 200-mounting structure; 210-insulating mounting block; 211-first mounting slot; 212-second mounting slot; 220-first shielding structure; 230-second shielding structure; 240-metal shielding shell; 300-positioning structure; 310-slot; 320-first positioning surface. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0036] See also Figure 1 In this embodiment, a detection mechanism 10 is provided, which is used to measure the electronic components on the material strip in the surface mounting technology, and then detect whether the electronic components on the material strip meet the requirements, thereby improving the efficiency of the surface mounting process. Among them, the detection mechanism 10 can automatically measure the electronic components on the material strip to ensure the accuracy and stability of the electronic component detection, and at the same time, the detection mechanism 10 can be easily replaced through the detachable connection between the replacement mechanism 12 and the lower needle mechanism 11.

[0037] It should be noted that the material belt refers to the carrier used to carry and transport the electronic components to be installed in the process of surface mounting technology (SMT). That is, in the process of surface mounting technology, the material belt is used as a carrier of the electronic components to be installed to transport the electronic components to the designated station, and the electronic components are installed on the surface of the printed circuit board through the corresponding mechanism.

[0038] The detection mechanism 10 includes a needle lowering mechanism 11, a replacement mechanism 12 and a measuring needle 13. The measuring needle 13 is used to measure the electronic components on the material strip, and the measuring needle 13 is installed on the replacement mechanism 12. The replacement mechanism 12 is detachably installed on the needle lowering mechanism 11, so that the needle lowering mechanism 11 can drive the replacement mechanism 12 to move under the driving action of the driving device, and then the measuring needle 13 is driven to the specified position by the replacement mechanism 12 to measure the specified electronic components, and the purpose of automatically measuring the electronic components on the material strip can be achieved. The detachable connection between the replacement mechanism 12 and the needle lowering mechanism 11 can facilitate the disassembly and assembly of the replacement mechanism 12, and then facilitate the replacement or maintenance of the replacement mechanism 12 and the measuring needle 13 as a whole, so as to achieve the purpose of easy replacement of the detection mechanism 10.

[0039] Further, the replacement mechanism 12 includes a mounting structure 200 and a positioning structure 300, and the positioning structure 300 and the measuring needle 13 are both mounted on the mounting structure 200, so as to provide a bearing function to the measuring needle 13 and the positioning structure 300 through the mounting structure 200. The positioning structure 300 is used to be detachably connected to the lower needle mechanism 11, so as to realize the detachable connection between the replacement mechanism 12 and the lower needle mechanism 11. Optionally, in this embodiment, the measuring needle 13 and the positioning structure 300 are respectively protruded from two oppositely arranged side surfaces on the mounting structure 200, thereby avoiding the mutual influence between the positioning structure 300 and the measuring needle 13, and can improve the stability and accuracy of the measuring needle 13 in measuring the electronic components on the material strip. It should be understood that in other embodiments, the installation positions of the positioning structure 300 and the measuring needle 13 on the mounting structure 200 may also be different, for example, the positioning structure 300 and the measuring needle 13 are installed on two adjacent side surfaces of the mounting structure 200, etc.

[0040] Optionally, in this embodiment, the positioning structure 300 is a protruding structure protruding from the mounting structure 200, and a positioning groove 110 matching the positioning structure 300 is provided on the needle lowering mechanism 11, and the positioning structure 300 can extend into the positioning groove 110 and realize a detachable connection with the needle lowering mechanism 11. It should be understood that in other embodiments, the positioning structure 300 can also be a groove provided on the mounting structure 200, in which case a protruding structure matching the positioning structure 300 is provided on the needle lowering mechanism 11, and when the protruding structure on the needle lowering mechanism 11 and the positioning structure 300 cooperate, a detachable connection between the needle lowering mechanism 11 and the positioning structure 300 is realized.

[0041] Furthermore, a clamping structure 130 is also provided on the needle lowering mechanism 11, and the clamping structure 130 extends into the interior of the positioning groove 110, so that when the positioning structure 300 extends into the interior of the positioning groove 110, the clamping action between the clamping structure 130 and the positioning structure 300 can realize the connection between the positioning structure 300 and the needle lowering mechanism 11. In addition, when the positioning structure 300 is subjected to an external force and has a tendency to escape from the positioning groove 110, the clamping structure 130 can loosen the positioning structure 300, so that the positioning structure 300 can escape from the positioning groove 110 under the action of the external force, thereby realizing the purpose of detaching the positioning structure 300 from the needle lowering mechanism 11. Among them, the clamping structure 130 extends into the interior of the positioning groove 110 and abuts against the positioning structure 300 extending into the interior of the positioning groove 110, so as to realize the stable connection between the positioning structure 300 and the needle lowering mechanism 11.

[0042] It should be noted that, in other embodiments, the connection between the positioning structure 300 and the needle lowering mechanism 11 can also be achieved in other ways. For example, the diameter of the positioning structure 300 is slightly larger than the inner diameter of the positioning groove 110, and the detachable connection between the positioning structure 300 and the positioning groove 110 can be achieved through the interference fit between the positioning structure 300 and the positioning groove 110; or, a corresponding magnetic structure is provided on the positioning structure 300 and inside the positioning groove 110, and the detachable connection between the positioning decoupling stock and the needle lowering mechanism 11 can be achieved through magnetic adsorption.

[0043] Further, in the present embodiment, a mounting hole 120 connected to the positioning groove 110 is provided on the needle lowering mechanism 11, and a clamping structure 130 is arranged inside the mounting hole 120 and extends into the positioning groove 110, so that when the positioning structure 300 extends into the positioning groove 110, the clamping structure 130 can be pressed against the positioning structure 300. Optionally, the clamping structure 130 includes a fixing block 132 and an elastic block 131, the fixing block 132 is installed in the mounting hole 120, and the elastic block 131 is arranged at one end of the fixing block 132 and passes through the inner peripheral wall of the positioning groove 110 and extends into the interior of the positioning groove 110. The elastic block 131 can selectively press against the positioning structure 300 to realize the connection between the positioning structure 300 and the needle lowering mechanism 11, or the elastic block 131 can release the positioning structure 300 when the positioning structure 300 is subjected to an external force to separate from the positioning groove 110, so as to realize the detachable connection between the positioning structure 300 and the needle lowering mechanism 11.

[0044] In addition, optionally, a slot 310 adapted to the elastic block 131 is provided on the positioning structure 300. When the positioning structure 300 is connected to the needle lowering mechanism 11, the elastic block 131 extends into the inner wall of the slot 310 to achieve the purpose of the elastic block 131 being held on the positioning structure 300, thereby achieving a direct connection between the positioning structure 300 and the needle lowering mechanism 11. Similarly, the elastic block 131 can be separated from the slot 310 by its own elasticity, and it is convenient to avoid the positioning structure 300, so that the positioning structure 300 can be separated from the positioning slot 110, thereby achieving the detachment of the positioning structure 300 and the needle lowering mechanism 11, that is, achieving a detachable connection between the positioning structure 300 and the needle lowering mechanism 11.

[0045] In the process of the positioning structure 300 extending into the positioning groove 110, the positioning structure 300 is pressed against the elastic block 131, and under the action of external force, the positioning structure 300 continues to move into the positioning groove 110, so that the positioning structure 300 pushes the elastic block 131 to undergo elastic deformation and then avoid the positioning structure 300. After the positioning structure 300 extends to the appropriate position of the positioning groove 110, the elastic block 131 recovers to the initial state through its own elastic restoring force and extends into the inside of the card slot 310. At this time, the connection between the positioning structure 300 and the needle lowering mechanism 11 is achieved through the mutual cooperation of the elastic block 131 and the card slot 310. When the positioning structure 300 needs to be removed, an external force is applied to the positioning structure 300 to separate from the positioning groove 110. Under the action of external force, the positioning structure 300 pushes the elastic member to undergo elastic deformation, and the elastic block 131 that undergoes elastic deformation separates from the card slot 310 and avoids the positioning structure 300, so that the positioning structure 300 can be separated from the positioning groove 110. The replacement mechanism 12 can be easily replaced by the above method, thereby achieving the purpose of facilitating the replacement and maintenance of the detection mechanism 10.

[0046] It should be understood that in other embodiments, the arrangement of the clamping groove 310 on the positioning structure 300 can also be eliminated. When the positioning structure 300 extends into the positioning groove 110, the elastic block 131 can be supported on the positioning structure 300 by its own elastic force, thereby increasing the friction between the positioning structure 300 and the elastic block 131, so that the positioning structure 300 and the needle lowering mechanism 11 can be connected to each other. At the same time, the positioning structure 300 can be disengaged from the positioning groove 110 by applying an external force to the positioning structure 300, thereby realizing a detachable connection between the positioning structure 300 and the needle lowering mechanism 11.

[0047] It should be noted that the above-mentioned method of “applying external force to the positioning structure 300” is to apply external force to the installation structure 200, so that the installation structure 200 can transfer the force to the positioning structure 300 when subjected to the external force, thereby achieving the effect of applying external force to the positioning structure 300.

[0048] In addition, in this embodiment, the outer side of the positioning structure 300 is provided with a first positioning surface 320, the inner peripheral wall of the positioning groove 110 is provided with a second positioning surface 111, and when the positioning structure 300 extends into the positioning groove 110 and is connected to the lower needle mechanism 11, the first positioning surface 320 is affixed to the second positioning surface 111. That is, when the first positioning surface 320 and the second positioning surface 111 are affixed, it means that the positioning structure 300 extends into the designated position in the positioning groove 110, which can improve the installation accuracy of the positioning structure 300, thereby making the position of the measuring needle 13 at the designated position, which can facilitate the control of the measuring needle 13 detecting the electronic component.

[0049] Further, optionally, in the present embodiment, the positioning structure 300 and the positioning groove 110 are both conical, and the first positioning surface 320 and the second positioning surface 111 are both conical surfaces. That is, in the present embodiment, the positioning structure 300 is a cone convexly disposed on the mounting structure 200, and forms a conical first positioning surface 320; the inner peripheral wall of the positioning groove 110 is also conical, and forms a conical second positioning surface 111. When the positioning structure 300 extends into the interior of the positioning groove 110, the positioning structure 300 can be extended into the position specified by the positioning groove 110 through the mutual fit between the first positioning surface 320 and the second positioning surface 111, which can improve the accuracy and stability of the installation of the positioning structure 300.

[0050] It should be understood that in other embodiments, the positioning structure 300 and the positioning groove 110 may be set differently. For example, the positioning structure 300 is set to a wedge shape, and the positioning groove 110 is set to a wedge-shaped groove that is compatible with the positioning structure 300, wherein the inclined surface on the positioning structure 300 is the first positioning surface 320, and the inclined surface inside the positioning groove 110 is the second positioning surface 111. The positioning function between the positioning structure 300 and the positioning groove 110 can also be achieved through the mutual fit between the first positioning surface 320 and the second positioning surface 111.

[0051] It should be noted that, in this embodiment, the positioning structure 300 and the positioning groove 110 are both conical in shape. It should be understood that, in other embodiments, the positioning structure 300 and the positioning groove 110 may be mutually adapted frustum or pyramid in shape.

[0052] The mounting structure 200 may include an insulating mounting block 210 and two first shielding structures 220. The two first shielding structures 220 are respectively mounted on two oppositely disposed side surfaces of the insulating mounting block 210, and the two first shielding structures 220 respectively form mounting areas with the two side surfaces of the insulating mounting block 210, that is, two oppositely disposed mounting areas (not shown) are provided on the insulating mounting block 210. In this embodiment, the number of the measuring needles 13 is two, and the two measuring needles 13 are respectively arranged inside the two mounting areas. The two measuring needles 13 are arranged inside the two mounting areas, that is, the two measuring needles 13 can be separated by the insulating mounting block 210, thereby avoiding short circuits between the measuring needles 13. At the same time, by arranging the first shielding structure 220 on the outside of the two measuring needles 13, the first shielding structure 220 can provide a shielding effect on the measuring needle 13, thereby avoiding signal interference caused by the outside to the measuring needle 13, thereby ensuring the accuracy of the measuring needle 13 in measuring electronic components.

[0053] In this embodiment, the first shielding structure 220 adopts a gold-plated copper base, and the first shielding structure 220 and the measuring needle 13 are in close contact so that the first shielding structure 220 and the measuring needle 13 can achieve electrical conduction, which can reduce the impact of microampere current on the measurement accuracy of the measuring needle 13, and further improve the accuracy of the measuring needle 13 in measuring electronic components.

[0054] For further information, please refer to Figure 1 and Figure 2Two first mounting grooves 211 are respectively provided on opposite sides of the insulating mounting block 210, and a second mounting groove 212 is provided on the bottom wall of the two first mounting grooves 211. Two measuring needles 13 are respectively provided in the two second mounting grooves 212, and the measuring needles 13 are attached to the bottom wall of the second mounting grooves 212. Two first shielding structures 220 are provided inside the two first mounting grooves 211, and the first shielding structures 220 are attached to the bottom wall of the first mounting grooves 211. It should be noted that, in the present embodiment, the thickness of the measuring needle 13 is the same as the depth of the second mounting groove 212, so that when the measuring needle 13 is accommodated in the second mounting groove 212, the side of the measuring needle 13 away from the bottom wall of the second mounting groove 212 is flush with the opening of the second mounting groove 212, that is, the measuring needle 13 is flush with the bottom wall of the first mounting groove 211, and when the first shielding structure 220 is installed in the first mounting groove 211, the first shielding structure 220 fits with the measuring needle 13, thereby achieving electrical conduction between the first shielding structure 220 and the measuring needle 13.

[0055] In addition, in this embodiment, a protrusion (not marked in the figure) for installing the measuring needle 13 is convexly provided inside the second mounting groove 212, and correspondingly, a through hole (not marked in the figure) corresponding to the protrusion is provided on the measuring needle 13. When the measuring needle 13 is installed inside the second mounting groove 212, the protrusion extends into the through hole to ensure the stability of the measuring needle 13 installed inside the second mounting groove 212. It should be understood that both the protrusion and the through hole can be set to multiple, and of course both the protrusion and the through hole can be set to one. By setting the matching protrusion and through hole, the stability of the installation of the measuring needle 13 can be ensured, and then the stability of the contact between the measuring needle 13 and the electronic component can be ensured when the measuring needle 13 is measured, which can improve the accuracy of the measurement.

[0056] Furthermore, in this embodiment, the mounting structure 200 further includes a metal shielding shell 240 and a second shielding structure 230. The metal shielding shell 240 is coated on the outside of the first shielding structure 220 and the insulating mounting block 210, thereby providing a shielding effect to the measuring needle 13. The arrangement of the metal shielding shell 240 can also be regarded as that the metal shielding shell 240 encloses a receiving cavity, and the insulating mounting block 210, the first shielding structure 220 and the measuring needle 13 are all extended into the interior of the receiving cavity, so that the metal shielding shell 240 can provide a shielding effect to the measuring needle 13, and can prevent external static electricity or artificial power-on from interfering with the measuring needle 13. The second shielding structure 230 is arranged on the inner side of the metal shielding shell 240, and the second shielding structure 230 is coated on the first shielding structure 220 and the insulating mounting block 210. That is, in this embodiment, a second shielding structure 230 is further provided in the inner layer of the metal shielding shell 240, and the second shielding structure 230 also covers the entire insulating mounting block 210, the first shielding structure 220 and the measuring needle 13, which can further ensure that the first shielding structure 220 and the measuring needle 13 can avoid interference from external factors, and further ensure the normal and stable operation of the measuring needle 13.

[0057] Optionally, in this embodiment, the second shielding structure 230 is made of an insulating plastic film, and the insulating plastic film is coated on the first shielding structure 220 and the insulating mounting block 210 , and the metal shielding shell 240 is coated on the outside of the insulating plastic film.

[0058] Among them, the first shielding structure 220, the second shielding structure 230, the metal shielding shell 240 and the insulating mounting block 210 provide a stable working place for the two measuring needles 13, which can ensure that the two measuring needles 13 do not affect each other, and at the same time avoid external interference from affecting the measuring needles 13, thereby ensuring the accuracy and stability of the measurement of the measuring needles 13.

[0059] It should be understood that in other embodiments, the second shielding structure 230 and / or the metal shielding shell 240 may be eliminated. That is, only the second shielding structure 230 may be eliminated, or only the metal shielding shell 240 may be eliminated, or both the second shielding structure 230 and the metal shielding shell 240 may be eliminated.

[0060] In summary, the detection mechanism 10 provided in this embodiment can drive the installation structure 200 to move through the needle lowering mechanism 11, and measure the electronic components on the material strip through the measuring needle 13 on the installation structure 200, so as to realize the automatic measurement of the electronic components, and ensure the detection accuracy and detection stability of the electronic components on the material strip. In addition, the installation structure 200 and the needle lowering mechanism 11 can be detachably connected through the detachable connection between the replacement mechanism 12 and the needle lowering mechanism 11, and the purpose of easy replacement and maintenance of the detection mechanism 10 can be achieved, thereby improving the convenience of electronic component detection.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A detection mechanism, characterized in that: The detection mechanism includes a replacement mechanism, a needle lowering mechanism and a measuring needle; The measuring needle is used to measure the electronic components on the material strip; The replacement mechanism includes a mounting structure and a positioning structure, the measuring needle is mounted on one side of the mounting structure, the positioning structure is arranged on the other side of the mounting structure, and the positioning structure is detachably connected to the needle lowering mechanism; The positioning structure is convexly arranged on the mounting structure, and a positioning groove matched with the positioning structure is provided on the needle lowering mechanism, and the positioning structure extends into the positioning groove and is detachably connected to the needle lowering mechanism; a clamping structure is provided on the needle lowering mechanism, and the clamping structure includes a fixed block and an elastic block, the fixed block is fixedly connected to the needle lowering mechanism, the elastic block is installed at one end of the fixed block and passes through the inner side wall of the positioning groove and extends into the positioning groove, and the elastic block can selectively abut against the positioning structure, or release the positioning structure when the positioning structure is subjected to an external force that separates from the positioning groove; A first positioning surface is arranged outside the positioning structure, and a second positioning surface is arranged on the inner peripheral wall of the positioning groove. When the positioning structure extends into the positioning groove and is connected with the needle lowering mechanism, the first positioning surface is fitted to the second positioning surface.

2. The detection mechanism according to claim 1, characterized in that: The positioning structure and the positioning groove are both conical, and the first positioning surface and the second positioning surface are both conical surfaces.

3. The detection mechanism according to claim 1, characterized in that: The positioning structure is provided with a slot matched with the elastic block. When the positioning structure is connected with the needle lowering mechanism, the elastic block extends into the slot and abuts against the inner peripheral wall of the slot.

4. The detection mechanism according to claim 1, characterized in that: The mounting structure comprises an insulating mounting block and two first shielding structures, and the number of the measuring needles is two; The two first shielding structures are respectively installed on two opposite sides of the insulating mounting block to form two mounting areas; The positioning structure is mounted on the insulating mounting block or the first shielding structure; The two measuring needles are respectively arranged in the two installation areas and are spaced apart.

5. The detection mechanism according to claim 4, characterized in that: Two first mounting grooves are respectively formed on opposite sides of the mounting structure, and a second mounting groove is formed on the bottom walls of the two first mounting grooves; The two measuring needles are respectively installed in the two second installation grooves; The two first shielding structures are respectively installed in the two first installation grooves, and the first shielding structure is in contact with the bottom wall of the first installation groove.

6. The detection mechanism according to claim 4, characterized in that: The mounting structure further comprises a metal shielding shell, and the metal shielding shell is coated on the first shielding structure and the outer side of the insulating mounting block.

7. The detection mechanism according to claim 6, characterized in that: The mounting structure further includes a second shielding structure, which is disposed inside the metal shielding shell and covers the first shielding structure and the outside of the insulating mounting block.

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