Circuit board on-line testing device

Abstract

The utility model discloses a circuit board on-line testing device comprising a pressing assembly and a pedestal, and the pressing assembly can be driven to move towards the pedestal; the upper die assembly is arranged on the side, facing the base, of the pressing assembly; the lower die assembly is arranged on the side, facing the pressing assembly, of the base; a mounting plate is arranged on the side, facing the base, of the pressing assembly, the upper die assembly is mounted on the mounting plate, and a floating structure is arranged between the upper die assembly and the mounting plate. According to the utility model, the floating structure is arranged between the upper die assembly and the pressing assembly, so that part abrasion and die loss caused by position deviation due to installation errors when the upper die assembly and / or the lower die assembly are / is installed can be effectively relieved or even avoided; the position deviation between the upper die assembly and the lower die assembly can be adjusted by using the floating structure, so that the time consumed during model changing is reduced, and the test efficiency and the test yield are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board online testing, in particular to a circuit board online testing device. Background Art

[0002] In the manufacturing process of PCBA (Printed Circuit Board Assembly), testing is a key step to ensure the quality and performance of PCBA. Common tests include ICT test (In-Circuit Test) and FCT test (Functional Test). ICT test is mainly a static test, that is, the test is performed without power, and it is mainly used to test whether there are any abnormalities in the circuit function of the electronic components on the PCBA, such as open circuit, short circuit, etc.; FCT test is a dynamic test, that is, it needs to be tested under power, and it is mainly used to test the functional aspects of the electronic and electrical aspects of the PCBA, such as current, voltage, power, etc. For the testing of PCBA, the prior art generally directly designs a set of special ICT&FCT test fixtures for the same series of PCBA versions, which are used in conjunction with the test cabinet on the equipment. The upper mold assembly of the ICT&FCT test fixture is installed on the pressing assembly of the equipment, and the lower mold assembly is installed on the base of the equipment, so that the pressing The assembly drives the upper mold assembly to move and cooperate with the lower mold assembly to insert the probe of the upper mold assembly into the PCBA placed on the lower mold assembly for ICT&FCT testing. When the upper mold assembly and the lower mold assembly need to be changed, the upper mold assembly and the lower mold assembly need to be disassembled and replaced. Since the test fixture includes an upper mold assembly and a lower mold assembly that need to be precisely positioned when testing, the installation accuracy requirements for the upper mold assembly and the lower mold assembly are relatively high. Therefore, it is easy to have position deviation after the change of model. It takes a lot of time to confirm whether the installation position of the upper mold assembly or the lower mold assembly is deviated, and adjust the installation position of the upper mold assembly or the lower mold assembly, which requires reinstallation, and even wear and damage of parts during adjustment and alignment. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides an online testing device for a circuit board, which can avoid reinstallation due to errors in installation precision, reduce the time consumed when changing models, improve test efficiency, and increase test yield.

[0004] According to one aspect of the present application, a circuit board online testing device is provided, comprising:

[0005] A pressing assembly and a base, wherein the pressing assembly is configured to be driven to move toward the base;

[0006] An upper mold assembly is arranged on a side of the pressing assembly facing the base;

[0007] A lower mold assembly is arranged on a side of the base facing the pressing assembly;

[0008] A mounting plate is arranged on one side of the pressing assembly facing the base, the upper die assembly is mounted on the mounting plate, and a floating structure is arranged between the upper die assembly and the mounting plate.

[0009] The circuit board online testing device of the utility model is provided with a floating structure between the upper mold assembly and the pressing assembly, thereby effectively alleviating or even avoiding the wear of parts and the loss of molds caused by the position deviation due to the installation error when installing the upper mold assembly and / or the lower mold assembly. When the position deviation occurs, the floating structure can be used to adjust the position deviation between the upper mold assembly and the lower mold assembly, so that the upper mold assembly can still be accurately aligned with the lower mold assembly, thereby reducing the time consumed when changing molds, improving the test efficiency, and improving the test yield. The circuit board online testing device of the utility model is not only suitable for online testing devices of circuit boards, but also suitable for other testing devices that need to separate the upper mold assembly and the lower mold assembly, as well as similar structures.

[0010] In some embodiments, the floating structure includes a positioning member and a through hole provided on the mounting plate for the positioning member to pass through, the positioning member is connected to the upper mold assembly and the mounting plate respectively through the through hole, and a circumferential floating space is provided between the through hole and the positioning member.

[0011] Therefore, through such a setting, the circumferential floating interval between the positioning piece and the perforation can be used to adjust the horizontal position deviation of the upper mold assembly or the lower mold assembly during installation, so that the upper mold assembly can still be accurately aligned with the lower mold assembly, thereby reducing the time consumed during mold change, improving test efficiency, and improving test yield.

[0012] In some embodiments, the positioning member includes a connecting end for connecting to the upper mold assembly and a limiting end for abutting against the mounting plate, and an axial floating space is provided between the limiting end and the mounting plate.

[0013] Therefore, through such a setting, the axial floating space between the limit end on the positioning part and the mounting plate can be used to adjust the vertical position deviation of the upper mold assembly or the lower mold assembly during installation. Combined with the setting of the circumferential floating space, when the upper mold assembly or the lower mold assembly is installed with an inclination, the position deviation can still be adjusted so that the upper mold assembly can still be accurately aligned with the lower mold assembly, thereby reducing the time consumed during the mold change, improving the test efficiency, and improving the test yield.

[0014] In some embodiments, the positioning member is a contour screw.

[0015] Therefore, through such a setting, the axial surface structure on the equal height screw and the structural coordination of the perforation, as well as the structural coordination of the head and the mounting plate, can be utilized to achieve floating adjustment of the upper mold assembly, reduce the time consumed during mold change, improve test efficiency, and improve test yield.

[0016] In some embodiments, an alignment structure is further provided between the upper mold assembly and the lower mold assembly.

[0017] Therefore, through such a setting, the alignment structure can be utilized, so that when the pressing assembly is used to drive the upper mold assembly close to the lower mold assembly, automatic alignment can be achieved under the action of the alignment structure, and the position deviation caused by the installation error can be automatically eliminated in combination with the floating structure, which can greatly reduce the time consumed for alignment during testing, thereby effectively improving the test efficiency and the test yield.

[0018] In some embodiments, the alignment structure includes a plug-in structure disposed on one of the upper mold assembly or the lower mold assembly, and a socket corresponding to the plug-in structure disposed on the other of the upper mold assembly or the lower mold assembly, and a conical surface is disposed on one end of the plug-in structure for inserting into the socket.

[0019] Therefore, through such a setting, the cooperation between the plug-in structure and the socket can be utilized, and the conical surface on the plug-in structure can be utilized, so that under the guidance of the conical surface, the upper mold assembly can use the floating structure to automatically adjust the position deviation, which can greatly reduce the time consumed for alignment during testing, thereby effectively improving the test efficiency and improving the test yield.

[0020] In some embodiments, a mounting and positioning structure is provided between the lower mold assembly and the base.

[0021] Therefore, through such a setting, the installation and positioning structure can be used to quickly and accurately install the lower mold assembly, thereby reducing the error during the installation of the lower mold assembly and avoiding the impact of the error during the installation of the lower mold assembly on the test, thereby effectively improving the test efficiency and improving the test yield.

[0022] In some embodiments, the installation and positioning structure includes a slideway structure disposed on one of the lower mold assembly or the base, and a slider structure disposed on one of the lower mold assembly or the base and sliding on the slideway structure.

[0023] Therefore, through such an arrangement, the structure of the slider and the slideway can be utilized to achieve rapid installation of the lower mold assembly, thereby reducing the time consumed during mold change and improving testing efficiency.

[0024] In some embodiments, the installation and positioning structure also includes a telescopic plunger disposed on one of the lower mold assembly or the base, and a limiting structure that cooperates with the telescopic plunger and is disposed on the other of the lower mold assembly or the base.

[0025] Therefore, through such a setting, the cooperation between the telescopic plunger and the limiting structure can be utilized to accurately locate the installation position between the lower mold assembly and the base, thereby ensuring the accuracy of the installation position of the lower mold assembly and avoiding the influence of errors during the installation of the lower mold assembly on the test, thereby effectively improving the test efficiency and improving the test yield.

[0026] In some embodiments, the installation and positioning structure further includes a telescopic plunger disposed on one of the slider structure or the slideway structure, and a limiting structure cooperating with the telescopic plunger disposed on the other of the slider structure or the slideway structure.

[0027] Therefore, through such an arrangement, since the slider structure and the slideway structure are arranged on the lower mold assembly and the base, and then by arranging the telescopic plunger and the limit structure on the slider structure and the slideway structure, the installation position between the lower mold assembly and the base can be accurately positioned to ensure the accuracy of the installation position of the lower mold assembly and avoid the influence of the error during the installation of the lower mold assembly on the test, thereby effectively improving the test efficiency and improving the test yield.

[0028] In some embodiments, the telescopic plunger is disposed on the slider structure, and the limiting structure is disposed on the slideway structure.

[0029] Therefore, through such an arrangement, the telescopic plunger arranged on the slider structure cooperates with the limiting structure arranged on the slide structure, and the slider structure moves with the movement of the lower mold assembly. When the lower mold assembly slides to the correct position, the telescopic plunger arranged on the slider structure and the limiting structure arranged on the slide structure can be utilized to limit the slider from continuing to move, thereby limiting the movement of the lower mold assembly, allowing the lower mold assembly to be installed in the correct position, ensuring the accuracy of the installation position of the lower mold assembly, and avoiding the influence of the error during the installation of the lower mold assembly on the test, thereby effectively improving the test efficiency and improving the test yield.

[0030] In some embodiments, the limiting structure includes a locking hole provided on the slide structure, and when the lower mold assembly is installed at a preset position on the base, the telescopic plunger is locked into the locking hole.

[0031] Therefore, through such a setting, the cooperation between the telescopic plunger and the card hole can be used to limit the movement of the lower mold assembly in all directions, ensure the accuracy of the installation position of the lower mold assembly, and avoid the influence of the error during the installation of the lower mold assembly on the test, thereby effectively improving the test efficiency and improving the test yield.

[0032] In some embodiments, a blocking structure is provided on the slideway structure, and when the lower mold assembly and the base slide relative to each other to the installation position, the slider structure abuts against the blocking structure to limit the slider structure from continuing to slide.

[0033] Therefore, through such a setting, the blocking structure can be used to limit the relative sliding between the lower mold assembly and the base to the installation position and then continue to slide further, so as to ensure the accuracy of the installation position of the lower mold assembly and avoid the influence of the error during the installation of the lower mold assembly on the test, thereby effectively improving the test efficiency and improving the test yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a circuit board online testing device according to an embodiment of the present utility model;

[0035] Figure 2 This is a schematic diagram of the installation structure of an upper mold assembly of a circuit board online testing device according to an embodiment of the utility model;

[0036] Figure 3 This is a structural schematic diagram of an installation and positioning structure of a circuit board online testing device according to an embodiment of the utility model;

[0037] Explanation of the accompanying drawings: 1. Upper mold assembly; 11. Plug-in structure; 2. Lower mold assembly; 21. Socket; 3. Press-fit assembly; 31. Mounting plate; 311. Perforation; 32. Positioning piece; 321. Limit end; 322. Connecting end; 33. Axial floating interval; 34. Circumferential floating interval; 4. Base; 41. Slide structure; 5. Telescopic plunger; 51. Clamping hole; 6. Slider structure. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0039] In the description of the present application, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, and does 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 application. The features defined as "first" and "second" are used to distinguish the feature names, rather than having special meanings. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] It should also be noted that, in this article, the terms "include" and "comprise" include not only those elements, but also other elements not explicitly listed, or also include elements inherent to such processes, methods, articles or equipment. In the absence of further restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the process, method, article or equipment that includes the elements. The terms used in this article are generally commonly used by those skilled in the art. If there is any inconsistency with the commonly used terms, the terms in this article shall prevail.

[0042] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0044] Figure 1 The structure of the circuit board online testing device according to one embodiment of the utility model is schematically shown. Figure 1 As shown, the circuit board online testing device of the present invention comprises a pressing assembly 3 and a base 4, an upper mold assembly 1 is arranged on the side of the pressing assembly 3 facing the base 4, and a lower mold assembly 2 is arranged on the side of the base 4 facing the pressing assembly 3. Among them, the upper mold component 1 is usually configured as a panel structure, one end face of which (usually the top face in the installed state) is used to be installed on the pressing component 3, and the other end face (usually the bottom face in the installed state) is used to detect the circuit board, and is usually provided with a probe needle plate for detecting the circuit board. The lower mold component 2 is a module for placing the circuit board, which includes a panel structure, one end face of the lower mold component 2 is used to be installed on the base 4, and the other end face is used to position and install the circuit board, and is usually provided with a placement groove, in which a probe for detecting the circuit board is arranged, and a positioning rod corresponding to the mounting hole on the circuit board is also arranged on the placement groove, so that the circuit board can be accurately placed on the placement groove of the lower mold component 2 through the positioning rod, and then when the installation positions of the upper mold component 1 and the lower mold component 2 are sufficiently accurate, the upper mold component 1 is driven to move toward the lower mold component 2 through the pressing component 3, so that the online test of the circuit board can be realized. The pressing component 3 is configured to be a structure that can be driven to move toward the base 4. It can be driven by hydraulic pressure, air pressure, motor drive, gear rack meshing, etc., and can also be driven by power provided by a motor, etc. Since the utility model does not improve the pressing component 3, the pressing component 3 will not be described in detail here. The pressing component 3 can be designed with a corresponding structure according to actual needs.

[0045] The upper mold assembly 1 is arranged on the pressing assembly 3 so as to move with the movement of the pressing assembly 3, so as to be driven closer to or away from the lower mold assembly 2 arranged on the base 4. Specifically, a mounting plate 31 is arranged on the side of the pressing assembly 3 facing the base 4, and the upper mold assembly 1 is mounted on the mounting plate 31, and then installed on the pressing assembly 3. Among them, a floating structure is arranged between the upper mold assembly 1 and the mounting plate 31. The floating structure can provide a certain adjustable float for the position deviation between the upper mold assembly 1 and the lower mold assembly 2 caused by the installation error, so as to effectively alleviate or even avoid the wear of parts and the loss of the mold caused by the error caused by the installation error when installing the upper mold assembly 1 and / or the lower mold assembly 2, reduce the installation error adjustment time, effectively reduce the time consumed during the changeover, improve the test efficiency, and improve the test yield.

[0046] In some possible embodiments, the floating structure may include a positioning member 32 and a through hole 311 provided on the mounting plate 31 for the positioning member 32 to pass through, the positioning member 32 passes through the through hole 311 and is respectively connected to the upper mold assembly 1 and the mounting plate 31, so that the upper mold assembly 1 is installed on the mounting plate 31, wherein a circumferential floating spacer 34 is provided between the positioning member 32 and the through hole 311. Through the design of the circumferential floating spacer 34, the horizontal position deviation caused by the upper mold assembly 1 or the lower mold assembly 2 during installation can be adjusted, so that a certain amount of deviation value can be ignored. The positioning member 32 includes a connecting end 322 and a limiting end 321, wherein the limiting end 321 is an end of the positioning member 32 for abutting against the mounting plate 31, and the limiting end 321 may be provided with a convex edge or a convex edge to limit the positioning member 32 from completely passing through the through hole 311, thereby achieving abutment against the mounting plate 31, and the limiting end 321 may be provided as a detachable connection to the positioning member 32 (such as a nut threadedly connected to the positioning member 32), or may be provided as a fixed setting or integrally formed on the positioning member 32; the connecting end 322 is one end of the positioning member 32 for connecting to the upper mold assembly 1. The connection end 322 can be configured to be connected to the upper mold assembly 1 in a detachable connection manner such as a threaded connection, or can be configured to be connected to the upper mold assembly 1 in a fixed connection manner. It should be noted that when the connection end 322 is configured to be connected to the upper mold assembly 1 in a fixed connection manner, the limit end 321 of the positioning member 32 should be configured to be detachably connected to the positioning member 32 to ensure the detachability between the upper mold assembly 1 and the mounting plate 31. The positioning member 32 may specifically be a positioning pin, a screw or other structure. When the positioning member 32 is a positioning pin, the positioning pin may be configured to pass through the through hole 311 and one end of which is a connecting end 322 that is fixedly connected to the upper mold assembly 1, so that the positioning pin is connected to the upper mold assembly 1 and the positioning pin and the upper mold assembly 1 move synchronously. The other end of the positioning pin may be configured to have a limiting end 321 structure that is threadedly connected to a nut to abut against the mounting plate 31, thereby installing the upper mold assembly 1 on the mounting plate 31. When the positioning member 32 is a screw, the screw may be configured to pass through the through hole 311 and one end of which is a connecting end 322 that is threadedly connected to the upper mold assembly 1, so that the screw and the upper mold assembly 1 are threadedly connected to achieve synchronous movement with the upper mold assembly 1. The protrusion on the head of the screw forms a limiting end 321 so that the screw can abut against the mounting plate 31, thereby installing the upper mold assembly 1 on the mounting plate 31. As a possible implementation, refer to Figure 2 As shown, in Figure 2In the embodiment shown, a contour screw can be used as the positioning member 32, the lower end of the contour screw is a threaded structure, and the middle part is a smooth cylinder. At this time, the contour screw passes through the through hole 311, and a circumferential floating interval 34 is set between the smooth cylindrical part of the contour screw and the through hole 311. The lower end of the contour screw forms a connecting end 322, which is threadedly connected to the upper mold assembly 1. The head size of the contour screw is larger than the through hole 311 to form a limit end 321, which is against the mounting plate 31 to achieve the installation of the upper mold assembly 1 on the mounting plate 31.

[0047] As a preferred embodiment, the size of the circumferential floating interval 34 is preferably designed to be 0.5 mm, so that the position of the positioning member 32 in the through hole 311 can be adjusted by ±0.5 mm in the horizontal direction, and the adjustable limit deviation size is 1 mm. Such a circumferential floating design can achieve the floating adjustment of the position of the upper mold assembly 1 in the horizontal direction without affecting the installation stability of the upper mold assembly 1.

[0048] Furthermore, in some possible embodiments, the floating structure may also include an axial floating spacer 33 provided between the limit end 321 of the positioning member 32 and the mounting plate 31. Different from the circumferential floating spacer 34, the axial floating spacer 33 is a floating spacer provided in the axial direction of the positioning member 32, which can adjust the vertical position deviation caused by the upper mold assembly 1 or the lower mold assembly 2 during installation, and combined with the setting of the circumferential floating spacer 34, when the upper mold assembly 1 or the lower mold assembly 2 is installed with an inclination, the position deviation of the inclination can be adjusted. For example, referring to Figure 2 As shown, in Figure 2 In the embodiment shown, the positioning member 32 is a height screw, and an axial floating interval 33 is provided between the head of the height screw and the mounting plate 31. Similar to the circumferential floating interval 34, the axial floating interval 33 is also preferably designed to be 0.5 mm. It is understandable that in actual working process, Figure 2 The axial floating space 33 shown in the figure will be transferred to between the mounting plate 31 and the upper mold assembly 1 under the action of gravity. When the pressing assembly 3 drives the upper mold assembly 1 to be pressed onto the lower mold assembly 2, the axial floating space 33 will be transferred back to between the head of the equal height screw and the mounting plate 31 under the support of the lower mold assembly 2.

[0049] As a possible implementation, an alignment structure may be further provided between the upper mold assembly 1 and the lower mold assembly 2. The alignment structure is used to automatically align the upper mold assembly 1 with the lower mold assembly 2 when the pressing assembly 3 drives the upper mold assembly 1 close to the lower mold assembly 2, and is combined with the floating structure to automatically utilize the floating structure to eliminate the position deviation caused by the installation error. In order not to affect the setting of the probe needle plate on the upper mold assembly 1 and the installation of the circuit board on the lower mold assembly 2, the setting position of the alignment structure is usually set at the edge of the upper mold assembly 1 and the lower mold assembly 2. Specifically, the alignment structure may include a plug-in structure 11 and a socket 21 corresponding to the plug-in structure 11, wherein the plug-in structure 11 may be provided on one of the upper mold assembly 1 and the lower mold assembly 2, and the socket 21 is provided on the other of the upper mold assembly 1 and the lower mold assembly 2. Optionally, a conical surface is provided on one end of the plug-in structure 11 for inserting the socket 21. When the pressing assembly 3 drives the upper mold assembly 1 to approach the lower mold assembly 2, the plug-in structure 11 will cooperate with the insertion hole 21 under the guidance of the conical surface, thereby having a certain guiding effect on the upper mold assembly 1, so that the upper mold assembly 1 automatically adjusts its position using the floating structure to eliminate the position deviation caused by the installation error. Figure 1 As shown, in Figure 1 In the embodiment shown, the plug-in structure 11 can be a guide pin, which is arranged around the upper mold assembly 1 and is provided with four guide pins, while the plug-in holes 21 are provided on the lower mold assembly 2, and four guide pins are provided corresponding to the positions of the guide pins. A conical surface is provided at one end of the guide pin facing the plug-in hole 21, and the positioning alignment between the four guide pins and the plug-in holes 21 enables the guide pins to be accurately inserted into the plug-in holes 21 of the lower mold assembly 2 under the guidance of the conical surface when the pressing assembly 3 drives the upper mold assembly 1 close to the lower mold assembly 2, thereby driving the upper mold assembly 1 to move synchronously in the horizontal direction, so that the upper mold assembly 1 can eliminate the position deviation by using the floating structure and realize automatic alignment. In the utility model, in addition to being a guide pin, the plug-in structure 11 can also be other structures that can cooperate with the plug-in hole 21, such as guide columns, positioning rods and other structures, as long as they can meet the corresponding technical effects and comply with the corresponding technical principles.

[0050] As a possible implementation, an installation positioning structure for improving the installation accuracy of the lower mold assembly 2 and realizing rapid installation of the lower mold assembly 2 may also be provided between the base 4 and the lower mold assembly 2. By improving the installation accuracy of the lower mold assembly 2, the error of the lower mold assembly 2 during installation can be effectively reduced, and the installation error of the lower mold assembly 2 can be avoided from affecting the test, so as to improve the test efficiency and the test yield. Specifically, the installation positioning structure may include a slideway structure 41 and a slider structure 6 sliding on the slideway structure 41, wherein the slideway structure 41 may be provided on one of the lower mold assembly 2 or the base 4, and the slider structure 6 may be provided on the other of the lower mold assembly 2 or the base 4. At this time, the installation of the lower mold assembly 2 can be realized by the mutual cooperation and guidance between the slider structure 6 and the slideway structure 41, so as to realize rapid installation of the lower mold assembly 2. The slideway structure 41 may be specifically implemented as a slide rail, and the slider structure 6 may be designed as a slider adapted to the shape of the slide rail. For example, referring to Figure 3 As shown, in Figure 3 In the illustrated embodiment, the slide structure 41 is a slide rail disposed on the base 4, and the slider structure 6 is a slider disposed below the panel of the lower mold assembly 2. Therefore, when the lower mold assembly 2 is installed, the slider can be installed on the slide rail and pushed along the slide rail to slide to the desired installation position. After that, the lower mold assembly 2 only needs to be relatively fixed to the base 4 to complete the installation of the lower mold assembly 2.

[0051] Furthermore, in some possible embodiments, a blocking structure may be provided on the slide structure 41, and the blocking structure is used to abut against the slider structure 6 to limit the slider structure 6 from continuing to slide when the base 4 and the lower mold assembly 2 slide relative to each other to the installation position. Specifically, the blocking structure can be set as a stopper. Optionally, the stopper is provided on the slide structure 41 (for example, integral with the slide structure 41 or installed at one end of the slide structure 41), and is provided in the sliding forward direction of the slider structure 6 when the lower mold assembly 2 is placed on the base 4. By adding a blocking structure design, when the lower mold assembly 2 is installed on the base 4, the relative sliding between the lower mold assembly 2 and the base 4 can be accurately stopped at the installation position of the two, thereby realizing the rapid installation of the lower mold assembly 2, and can also effectively improve the installation accuracy of the lower mold assembly 2 during installation, reduce the error occurring during the installation of the lower mold assembly 2, effectively improve the test efficiency, and improve the test yield. For example, continue to refer to Figure 3 As shown, in Figure 3In the illustrated embodiment, the slide structure 41 is a slide rail disposed on the base 4, and a stop block is disposed at the end of the slide rail, so that when the slider on the lower mold assembly 2 slides on the slide rail until it abuts against the stop block, the lower mold assembly 2 is located in the correct installation position, and the lower mold assembly 2 can be quickly installed. Compared with the existing installation method of the lower mold assembly 2, the installation method of the lower mold assembly 2 of the utility model eliminates the need for the user to fine-tune the installation position of the lower mold assembly 2 multiple times according to the position of the circuit board on the assembly line, thereby effectively reducing the installation and changeover time of the lower mold assembly.

[0052] Furthermore, in some other possible embodiments, the installation and positioning structure may also include a telescopic plunger 5 and a limiting structure that cooperates with the telescopic plunger 5. Among them, the telescopic plunger 5 and the limiting structure are structures used to limit the relative sliding between the lower mold assembly 2 and the base 4. It can be understood that the telescopic plunger 5 and the limiting structure can be set on the lower mold assembly 2 and the base 4, or on the slider structure 6 and the slideway structure 41, and can also be set to be staggered among the four. It is only necessary to ensure that one is set on the lower mold assembly 2 or the structure connected to the lower mold assembly 2, and the other is set on the base 4 or the structure connected to the base 4. The limiting structure can specifically be a structure of a clamping hole 51, and then by using the cooperation of the telescopic plunger 5 and the clamping hole 51, the relative sliding between the lower mold assembly 2 and the base 4 can be completely limited, so that the lower mold assembly 2 and the base 4 cannot continue to slide forward or backward. In the embodiment with a blocking structure, the limiting structure may also be a limiting plate, so that the limiting plate and the telescopic plunger 5 cooperate to make the telescopic plunger 5 and the limiting plate abut against each other to prevent the lower mold assembly 2 from sliding backward, thereby limiting the lower mold assembly 2 and the base 4 from sliding forward through the blocking structure, and limiting the lower mold assembly 2 and the base 4 from sliding backward through the limiting plate and the telescopic plunger 5, thereby limiting the relative sliding between the lower mold assembly 2 and the base 4. For example, continue to refer to Figure 3 As shown, in Figure 3 In the illustrated embodiment, the telescopic plunger 5 is arranged on the side of the slider structure 6 of the lower mold assembly 2, and the limiting structure is arranged as a card hole 51, and is arranged on the slide structure 41 of the base 4. Then, when the lower mold assembly 2 slides on the slide structure 41 of the base 4 using the slider structure 6, when the lower mold assembly 2 slides to the installation position, the telescopic plunger 5 will be stuck in the card hole 51, thereby completely limiting the relative sliding between the lower mold assembly 2 and the base 4, so that the lower mold assembly 2 and the base 4 cannot continue to slide forward or backward.

[0053] When the circuit board online testing device of the utility model is in use, the upper mold assembly 1 and the lower mold assembly 2 need to be installed separately. When installing the upper mold assembly 1, it is only necessary to install the upper mold assembly 1 on the mounting plate 31 by means of equal height screws. When installing the lower mold assembly 2, the slider on the lower mold assembly 2 can be installed on the slide rail of the base 4, and the sliding guide between the slider and the slide rail can be used to push the lower mold assembly 2 to move to the accurate installation position. When the lower mold assembly 2 moves to the installation position, the slider will be blocked by the block on the slide rail, and at the same time, the position of the telescopic plunger 5 on the slider will be aligned with the card hole 51 on the slide rail, and the telescopic plunger 5 is snapped into the card hole 51 by rebounding, so as to achieve complete fixation of the lower mold assembly 2 and achieve accurate installation of the lower mold assembly 2. After installation, when in use, since a floating structure is provided between the upper mold assembly 1 and the mounting plate 31, and guide pins and sockets 21 are provided between the upper mold assembly 1 and the lower mold assembly 2, even if there is a slight installation position error in the upper mold assembly 1 or the lower mold assembly 2 during installation, when the pressing assembly 3 drives the upper mold assembly 1 to be pressed down onto the lower mold assembly 2, under the guiding action of the guide pins and the sockets 21, the upper mold assembly 1 utilizes the floating structure to automatically adjust the position deviation, so that the upper mold assembly 1 can still be accurately aligned with the lower mold assembly 2 when a small installation position error occurs, thereby reducing the time consumed during changeover, improving test efficiency, and improving test yield.

[0054] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A circuit board online testing device, characterized in that: include: A pressing assembly and a base, wherein the pressing assembly is configured to be driven to move toward the base; An upper mold assembly is arranged on a side of the pressing assembly facing the base; A lower mold assembly is arranged on a side of the base facing the pressing assembly; A mounting plate is arranged on one side of the pressing assembly facing the base, the upper die assembly is mounted on the mounting plate, and a floating structure is arranged between the upper die assembly and the mounting plate.

2. The circuit board online testing device according to claim 1, characterized in that: The floating structure includes a positioning member and a through hole arranged on the mounting plate for the positioning member to pass through. The positioning member is connected to the upper mold assembly and the mounting plate respectively through the through hole. A circumferential floating interval is arranged between the through hole and the positioning member.

3. The circuit board online testing device according to claim 2, characterized in that: The positioning member includes a connecting end for connecting with the upper mold assembly and a limiting end for abutting against the mounting plate, and an axial floating interval is provided between the limiting end and the mounting plate.

4. The circuit board online testing device according to claim 1, characterized in that: An alignment structure is also provided between the upper mold assembly and the lower mold assembly.

5. The circuit board online testing device according to claim 4, characterized in that: The alignment structure includes a plug-in structure arranged on one of the upper mold assembly or the lower mold assembly, and a socket corresponding to the plug-in structure arranged on the other of the upper mold assembly or the lower mold assembly, and a conical surface is arranged on one end of the plug-in structure for inserting into the socket.

6. The circuit board online testing device according to claim 1 or 4, characterized in that: An installation and positioning structure is arranged between the lower mold assembly and the base.

7. The circuit board online testing device according to claim 6, characterized in that: The installation and positioning structure includes a slideway structure arranged on one of the lower mold assembly or the base, and a slider structure arranged on one of the lower mold assembly or the base and sliding on the slideway structure.

8. The circuit board online testing device according to claim 7, characterized in that: The installation and positioning structure also includes a telescopic plunger arranged on one of the lower mold assembly or the base, and a limiting structure arranged on the other of the lower mold assembly or the base and cooperating with the telescopic plunger.

9. The circuit board online testing device according to claim 7 or 8, characterized in that: The installation and positioning structure further includes a telescopic plunger arranged on one of the slider structure or the slideway structure, and a limiting structure matched with the telescopic plunger arranged on the other of the slider structure or the slideway structure.

10. The circuit board online testing device according to claim 7, characterized in that: A blocking structure is arranged on the slideway structure, and when the lower mold assembly and the base slide relatively to the installation position, the slider structure abuts against the blocking structure to limit the slider structure from continuing to slide.

Images