Automatic mold locking device, PCB board test module and PCB board test equipment

Abstract

The present invention belongs to the technical field of PCB production and testing equipment, and in particular, relates to an automatic mold locking device, a PCB board test module and a PCB board test device, wherein the automatic mold locking device includes a locking mechanism, the locking mechanism includes a swing rod, a hinge seat and a traction member, the hinge seat is fixed to the edge of the upper fixed plate, the middle part of the swing rod is hinged to the hinge seat, the first end of the swing rod extends to the middle of the upper fixed plate, the second end of the swing rod extends downward and bends to the lower surface of the upper template, and the traction member is fixed to the upper fixed plate and connected to the first end of the swing rod. In this embodiment, through the cooperation of the traction member and the swing rod, the upper template can be quickly locked and the locking state between the upper template and the upper fixed plate can be quickly released, which greatly speeds up the disassembly and replacement speed of the upper template and the test main board located between the upper template and the upper fixed plate, and improves production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of PCB production and testing equipment, and in particular relates to an automatic mold locking device, a PCB board testing module and a PCB board testing equipment. Background Art

[0002] PCB board test modules are usually used for burning and testing PCB board programs. In the PCB board test module, a test mainboard is fixed to the upper surface of an upper template, and the test mainboard is fixed by clamping the upper fixing plate and the upper template up and down. The test mainboard is provided with a test needle extending downward and passing through the upper template. The test mainboard abuts against preset contacts on the PCB board through the test needle, thereby testing the PCB board. Different PCB boards have different circuit layouts, so a corresponding test mainboard and upper template are set for each PCB board. In the related art, an upper fixing plate is provided with a screw extending downward and connected to the upper template screw, and the upper template is fixed to the bottom of the upper fixing plate by the screw. However, when switching to test different PCB boards, it is necessary to turn the screws each time, and the process is cumbersome, and there is a problem of slow speed in disassembling and replacing the test mainboard and the upper template. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic mold locking device, a PCB board test module and a PCB board test equipment, aiming to solve the technical problem of slow disassembly and replacement speed of a test main board and an upper template in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic mold locking device, used to lock the upper mold plate to the lower surface of the upper fixed plate, the automatic mold locking device includes a locking mechanism, the locking mechanism includes a swing rod, a hinge seat and a traction member, the hinge seat is fixed to the edge of the upper fixed plate, the middle part of the swing rod is hinged to the hinge seat, the first end of the swing rod extends toward the middle of the upper fixed plate, the second end of the swing rod extends downward and bends to the lower surface of the upper mold plate, the traction member is fixed to the upper fixed plate and is connected to the first end of the swing rod and pulls the first end of the swing rod to swing upward or downward.

[0005] Optionally, the number of the articulated seats and the number of the swing rods are both two, the two articulated seats are arranged side by side, the locking mechanism also includes an articulated rod and a connecting rod, the two ends of the articulated rod are respectively passed through the two articulated seats, and the two ends of the articulated rod are respectively hinged to the middle parts of the two swing rods, the two ends of the connecting rod are respectively connected to the first ends of the two swing rods, and the traction member is connected to the middle part of the connecting rod.

[0006] Optionally, the locking mechanism also includes a first fixed seat, the traction member is a first cylinder, the first cylinder is fixed on the first fixed seat and is located between the first ends of the two swing rods, and the push rod of the first cylinder extends downward and is connected to the middle part of the connecting rod.

[0007] Optionally, elastic members are provided on both sides of the first fixing seat, the upper ends of the two elastic members are respectively connected to the two sides of the first fixing seat, and the lower ends of the two elastic members are respectively connected to the first ends of the two swing rods.

[0008] Optionally, the first fixed seat includes a connecting plate and a mounting plate for fixing the first cylinder, the lower end of the connecting plate is fixedly connected to the upper fixing plate, the upper end of the connecting plate extends upward to a position higher than the first ends of the two swing rods, the mounting plate is fixed to the upper end of the connecting plate, and the two fixing parts are respectively arranged on both sides of the mounting plate.

[0009] Optionally, a hinge is provided at the lower end of the push rod of the first cylinder, the upper end of the hinge is hinged to the lower end of the push rod of the first cylinder, and the lower end of the hinge is connected to the connecting rod.

[0010] Optionally, the automatic mold locking device also includes a separation mechanism, which includes a second fixed seat and a second cylinder, the second fixed seat is fixed on the upper fixed plate, the second cylinder is fixed on the second fixed seat, and the push rod of the second cylinder extends downward and passes through the upper fixed plate and abuts against the upper mold plate.

[0011] Beneficial effects of the present invention: In the automatic mold locking device of the present invention, the traction member is connected to the first end of the swing rod and pulls the first end of the swing rod to swing upward or downward. When the first end of the swing rod swings, it drives the second end of the swing rod to swing around the hinge point between the middle of the swing rod and the hinge seat. Since the second end of the swing rod first extends downward and then bends toward the lower surface of the upper template and the hinge seat is fixed to the edge of the upper fixed plate, the end of the second end of the swing rod and the upper template are located below the hinge seat and close to the middle of the upper template. During use, when the traction member pulls the first end of the swing rod to swing upward, the second end of the swing rod swings downward, so that the end of the second end of the swing rod moves to the inner side of the upper template and moves upward, and the end of the second end of the swing rod pushes the upper template to move upward, thereby quickly locking the upper template to the lower surface of the upper fixed plate; when the traction member pulls the first end of the swing rod to swing downward, the second end of the swing rod swings upward, so that the end of the second end of the swing rod moves to the outer side of the upper template and moves downward, and the end of the second end of the swing rod releases the upper template, thereby facilitating the separation of the upper template from the upper fixed plate. In this embodiment, through the cooperation of the traction member and the swing rod, the upper template can be quickly locked and the locking state between the upper template and the upper fixed plate can be quickly released, which greatly speeds up the disassembly and replacement of the upper template and the test main board located between the upper template and the upper fixed plate, and improves production efficiency.

[0012] To achieve the above-mentioned purpose, another technical solution adopted by the present invention is: a PCB board test module, including an upper module, the upper module includes an upper fixed plate, an upper template arranged on the lower surface of the upper fixed plate and a test main board detachably fixed to the upper surface of the upper template, and the automatic locking device is provided on both sides of the upper fixed plate.

[0013] Optionally, the PCB board test module also includes a lower module and a linear motion module extending to the bottom of the upper module, the lower module is fixedly mounted on the driving end of the linear motion module and is driven by the linear motion module to reciprocate along the length direction of the linear motion module, and the lower surface of the upper module is provided with a replacement positioning pin extending downward and inserted into the lower module and a limit pin extending downward and abutting against the lower module, and the length of the limit pin is less than the length of the replacement positioning pin.

[0014] Optionally, the lower die assembly includes a lower fixing plate fixedly mounted on the driving end of the linear motion die assembly and a lower template arranged on the upper surface of the lower fixing plate, and the lower fixing plate and / or the lower template are provided with a pin hole matching the replacement positioning pin.

[0015] Beneficial effects of the present invention: In the present invention, both sides of the upper fixed plate are provided with the aforementioned automatic mold locking devices, the two automatic mold locking devices support the upper template from both sides of the upper template, and push the upper template to move from both sides of the upper template to lock the upper template, so that in the PCB board test module, the upper template can be quickly and automatically locked and unlocked, which speeds up the speed of disassembling and replacing the test main board and the upper template of the PCB board test module.

[0016] To achieve the above object, another technical solution adopted by the present invention is: a PCB board testing device, including a working platform, the PCB board testing device includes at least one PCB board testing module, and each of the PCB board testing modules is installed on the working platform.

[0017] The beneficial effects of the present invention are as follows: the PCB board testing device of the present invention can test PCB boards in batches and has a faster PCB board testing speed. The PCB board testing device of this embodiment relatively replaces the test main board and the upper template more frequently, and each replacement involves multiple PCB board testing modules. By arranging automatic mold locking devices on both sides of the upper fixed plate in each PCB board testing module, the upper template can be locked or unlocked at the same time, which has an extremely high replacement speed and improves work efficiency. In addition, it also makes up for the cost problem caused by the additional automatic mold locking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic diagram of the structure of a PCB board test module provided by an embodiment of the present invention;

[0020] Figure 2 A rear view of a PCB board test module provided by an embodiment of the present invention;

[0021] Figure 3 A side view of a PCB board test module provided by an embodiment of the present invention;

[0022] Figure 4 An exploded view of a PCB board test module provided in an embodiment of the present invention.

[0023] Among them, the figure marks are: 1-upper mold group, 11-upper template, 12-upper fixed plate, 13-test main board, replacement positioning pin 14, limit pin 15, 2-locking mechanism, 21-swing rod, 22-hinge seat, 23-traction member, 24-hinge rod, 25-connecting rod, 26-first fixed seat, 261-connecting plate, 262-mounting plate, 263-fixed part, 27-elastic member, 28-hinge member, 3-separation mechanism, 31-second fixed seat, 32-second cylinder, 4-lifting assembly, 41-guide column, 42-top plate, 43-third cylinder, 5-linear motion module, 6-lower mold group, 61-lower fixed plate, 62-lower template. DETAILED DESCRIPTION

[0024] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the attached Figure 1 To Attachment Figure 4 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figure 1 To Attachment Figure 4 The described embodiments are exemplary and intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1 , Figure 4 As shown, an embodiment of the present invention provides an automatic mold locking device for locking the upper mold plate 11 to the lower surface of the upper fixed plate 12. The automatic mold locking device includes a locking mechanism 2, which includes a swing rod 21, a hinge seat 22 and a traction member 23. The hinge seat 22 is fixed to the edge of the upper fixed plate 12, the middle part of the swing rod 21 is hinged to the hinge seat 22, the first end of the swing rod 21 extends to the middle of the upper fixed plate 12, the second end of the swing rod 21 extends downward and bends to the lower surface of the upper mold plate 11, and the traction member 23 is fixed to the upper fixed plate 12 and connected to the first end of the swing rod 21 and pulls the first end of the swing rod 21 to swing upward or downward. In this embodiment, the traction member 23 is connected to the first end of the swing rod 21 and pulls the first end of the swing rod 21 to swing upward or downward. When the first end of the swing rod 21 swings, it drives the second end of the swing rod 21 to swing around the hinge point between the middle part of the swing rod 21 and the hinge seat 22. Since the second end of the swing rod 21 first extends downward and then bends toward the lower surface of the upper template 11 and the hinge seat 22 is fixed to the edge of the upper fixed plate 12, the end of the second end of the swing rod 21 and the abutment position with the upper template 11 are located below the hinge seat 22 and close to the middle of the upper template 11. During use, when the traction member 23 pulls the first end of the swing rod 21 to swing upward, the second end of the swing rod 21 swings downward, so that the end of the second end of the swing rod 21 moves toward the inner side of the upper template 11 and moves upward, and the end of the second end of the swing rod 21 pushes the upper template 11 to move upward, thereby quickly locking the upper template 11 to the lower surface of the upper fixed plate 12; when the traction member 23 pulls the first end of the swing rod 21 to swing downward, the second end of the swing rod 21 swings upward, so that the end of the second end of the swing rod 21 moves toward the outer side of the upper template 11 and moves downward, and the end of the second end of the swing rod 21 releases the upper template 11, thereby facilitating the separation of the upper template 11 from the upper fixed plate 12. In this embodiment, through the cooperation of the traction member 23 and the swing rod 21, the upper template 11 can be quickly locked and the locking state between the upper template 11 and the upper fixed plate 12 can be quickly released, which greatly speeds up the disassembly and replacement speed of the upper template 11 and the test main board 13 located between the upper template 11 and the upper fixed plate 12, and improves production efficiency.

[0029] Alternatively, if Figure 1 , Figure 2As shown, the number of the articulated seats 22 and the number of the swinging rods 21 are both two, and the two articulated seats 22 are arranged side by side. The locking mechanism 2 also includes an articulated rod 24 and a connecting rod 25. The two ends of the articulated rod 24 are respectively penetrated on the two articulated seats 22, and the two ends of the articulated rod 24 are respectively hinged to the middle of the two swinging rods 21, the two ends of the connecting rod 25 are respectively connected to the first ends of the two swinging rods 21, and the traction member 23 is connected to the middle of the connecting rod 25. When a single swinging rod 21 locks the upper template 11, there is a problem that the swinging rod 21 cannot stably support the upper template 11. In this embodiment, by providing two swinging rods 21, and driving the two swinging rods 21 to swing at the same time through the connecting rod 25, the second ends of the two swinging rods 21 can synchronously lock the upper template 11 or synchronously release the locking of the upper template 11, and the second ends of the two swinging rods 21 can stably support the upper template 11.

[0030] Further, in this embodiment, the traction member 23 is a power element or elastic element capable of pulling the first end of the swing rod 21 to swing, such as the power element is a cylinder, a hydraulic cylinder, etc., and the elastic element is a compression spring. The traction member 23 is fixed to the upper fixed plate 12, and the upper end of the traction member 23 is connected to the first end of the swing rod 21, so as to pull the first end of the swing rod 21 to swing.

[0031] In this embodiment, Figure 2 As shown, the locking mechanism 2 also includes a first fixed seat 26. Preferably, the traction member 23 is a first cylinder, which is fixed on the first fixed seat 26 and located between the first ends of the two swing rods 21. The push rod of the first cylinder extends downward and is connected to the middle of the connecting rod 25. The push rod of the first cylinder can be automatically extended and retracted. Compared with the compression spring, it has a higher degree of automation and is faster to disassemble and replace the upper template 11 and the test main board 13. In addition, in the related art, in order to accurately locate the position between the upper fixed plate 12 and the upper template 11, the upper fixed plate 12 and the upper template 11 are positioned by installing positioning pins. Due to the tight fit of the installation positioning pins, it takes a large force to lock the upper template 11 to the lower surface of the upper fixed plate 12, and the first cylinder can apply a large force to the swing rod 21, so that the second end of the swing rod 21 can exert a large force to support and push the upper template 11 upward to lock the upper template 11.

[0032] Alternatively, if Figure 1 , Figure 4As shown, elastic members 27 are provided on both sides of the first fixed seat 26, and the upper ends of the two elastic members 27 are respectively connected to the two sides of the first fixed seat 26, and the lower ends of the two elastic members 27 are respectively connected to the first ends of the two swing rods 21. In this embodiment, the two ends of the elastic member 27 are respectively connected to the corresponding sides of the first fixed seat 26 and the first ends of the corresponding swing rods 21, and the elastic member 27 can continuously apply a force to swing the first end of the swing rod 21 upward, so that the second end of the swing rod 21 can continuously support the upper template 11, so that in the case that the traction member 23 suddenly loses power (such as the loss of air pressure in the first cylinder), the force can be supplemented in time to support the upper template 11, so as to prevent the upper template 11 from detaching from the lower surface of the upper fixed plate 12 and causing the upper template 11 and the test main board 13 to break.

[0033] Furthermore, both sides of the first fixing seat 26 are provided with fixing portions 263 extending from the upper end of the corresponding swing rod 21 , and the upper ends of the two elastic members 27 are connected to the two fixing portions 263 respectively.

[0034] In this embodiment, the elastic member 27 is a tension spring or an elastic rubber band, and the tension spring is preferred in this embodiment.

[0035] Alternatively, if Figure 1 , Figure 4 As shown, the first fixing seat 26 includes a connecting plate 261 and a mounting plate 262 for fixing the first cylinder, the lower end of the connecting plate 261 is fixedly connected to the lower end of the upper fixing plate 12, the upper end of the connecting plate 261 extends upward to a position higher than the first ends of the two swinging rods 21, the mounting plate 262 is fixed to the upper end of the connecting plate 261, and the two fixing portions 263 are respectively arranged on both sides of the mounting plate 262. In this embodiment, the connecting plate 261 extends upward so that the height of the mounting plate 262 is higher than the height of the first ends of the two swinging rods 21, and when the two ends of the elastic member 27 are respectively connected to the fixing portion 263 and the first end of the swinging rod 21, the elastic member 27 can provide a pulling force that continuously acts on the first end of the swinging rod 21.

[0036] Alternatively, if Figure 1 , Figure 4 As shown, the lower end of the push rod of the first cylinder is provided with a hinge 28, the upper end of the hinge 28 is hinged to the lower end of the push rod of the first cylinder, and the lower end of the hinge 28 is connected to the connecting rod 25. Since the first end of the swing rod 21 is swinging, the motion trajectory of the connecting rod 25 is arc-shaped, while the motion trajectory of the push rod of the first cylinder is a straight line, so there will be motion interference between the push rod of the first cylinder and the connecting rod 25. In this embodiment, by providing the hinge 28 at the lower end of the push rod of the first cylinder, the motion interference between the push rod of the first cylinder and the connecting rod 25 is avoided.

[0037] Alternatively, if Figure 1 , Figure 4As shown, the automatic mold locking device also includes a separation mechanism 3, which includes a second fixed seat 31 and a second cylinder 32. The second fixed seat 31 is fixed on the upper fixed plate 12, and the second cylinder 32 is fixed on the second fixed seat 31. The push rod of the second cylinder 32 extends downward and passes through the upper fixed plate 12 and abuts against the upper template 11. In the related art, in order to accurately locate the position between the upper fixed plate 12 and the upper template 11, the upper fixed plate 12 and the upper template 11 are positioned by installing positioning pins. Due to the tight fit of the installation positioning pins, it is difficult to separate the upper template 11 from the upper fixed plate 12. In the separation mechanism 3 of this embodiment, the push rod of the second cylinder 32 abuts against the upper template 11, thereby pushing the upper template 11 to move downward, so that the upper template 11 is separated from the upper fixed plate 12, and the upper template 11 is unlocked.

[0038] In this embodiment, the push rod of the second cylinder 32 extends downward and passes through the upper fixed plate 12 and abuts against the upper template 11. The push rod of the second cylinder 32 can be indirectly abutted against the upper template 11 through the test main board 13, or the test main board 13 can be provided with a hole to avoid air, so that the push rod of the second cylinder 32 directly abuts against the upper template 11 through the hole to avoid air.

[0039] In addition, in this embodiment, during the unlocking process of the upper template 11, when the upper template 11 is completely separated from the upper fixed plate 12, it is very likely that due to the influence of the gravity of the upper template 11 and the test main board 13, the second end of the swing rod 21 continues to swing toward the outside of the upper template 11, thereby causing the second end of the swing rod 21 to separate from the upper template 11, resulting in the upper template 11 falling. The elastic member 27 can prevent the second end of the swing rod 21 from continuing to swing toward the outside of the upper template 11 after the upper template 11 is separated from the upper fixed plate 12, thereby preventing the second end of the swing rod 21 from separating from the upper template 11 and preventing the upper template 11 and the test main board 13 from falling.

[0040] like Figure 1 As shown, an embodiment of the present invention further provides a PCB board test module, including an upper module 1, the upper module 1 includes an upper fixed plate 12, an upper template 11 arranged on the lower surface of the upper fixed plate 12 and a test main board 13 detachably fixed to the upper surface of the upper template 11, and the above-mentioned automatic locking device is provided on both sides of the upper fixed plate 12.

[0041] In this embodiment, the aforementioned automatic mold locking devices are provided on both sides of the upper fixed plate 12. The two automatic mold locking devices support the upper template 11 from both sides of the upper template 11, and push the upper template 11 from both sides of the upper template 11 to move to lock the upper template 11, so that in the PCB board test module, the upper template 11 can be quickly and automatically locked and unlocked, thereby speeding up the speed of disassembling and replacing the test main board 13 and the upper template 11 of the PCB board test module.

[0042] Alternatively, if Figure 3, Figure 4 As shown, the PCB board test module also includes a lower module 6 and a linear motion module 5 extending to the bottom of the upper module 1. The lower module 6 is fixedly mounted on the driving end of the linear motion module 5 and is driven by the linear motion module 5 to reciprocate along the length direction of the linear motion module 5. The lower surface of the upper module 11 is provided with a replacement positioning pin 14 extending downward and inserted into the lower module 6 and a limit pin 15 extending downward and abutting against the lower module. The length of the limit pin 15 is less than the length of the replacement positioning pin 14. In the process of automatically installing the test main board 13 and the upper template 11, the test main board 13 is first fixed to the upper surface of the upper template 11, and the upper template 11 is then placed on the lower module 6, and the replacement positioning pin 14 is matched and connected with the lower module 6, and the limit pin 15 abuts against the lower module 6, so that the upper template 11 and the lower module 6 maintain a distance, as shown in FIG. Figure 3 As shown; then, the lower die set 6 is driven by the linear motion die set 5 to move to the bottom of the upper fixed plate 12, and the test main board 13 and the upper die set 11 are also brought to the bottom of the upper fixed plate 12; then, the two locking mechanisms 2 start working, and the two traction members 23 pull the first ends of the two swing rods 21 to swing upward, and the second ends of the two swing rods 21 extend into the gap between the upper die set 11 and the lower die set 6, and the upper die set 11 is locked together with the test main board 13, so as to realize the automatic installation of the upper die set 11 and the test main board 13, as shown in FIG. Figure 2 In this embodiment, the upper template 11 and the test main board are transported by the wire core movement module 5, and the upper template 11 and the test main board 13 are transported to the bottom of the upper fixed plate 12, and by setting a replacement positioning pin 14 and a limit pin 15 on the lower surface of the upper template, a gap is formed between the upper template 11 and the lower module 6, so that the second end of the swing rod 21 can extend into the gap between the upper template 11 and the lower module 6, and the upper template 11 and the test main board 13 are automatically installed.

[0043] During the process of automatically disassembling the upper template 11 and the test main board 13, first, the linear motion module 5 drives the lower module 6 to move to the bottom of the upper template 11 so as to receive the upper template 11; then, the traction member 23 in the locking mechanism 2 pulls the first end of the swing rod 21 to swing downward, so that the second end of the swing rod 21 swings outward and disengages from the upper template 11; then, the separation mechanism 3 starts working, and the push rod of the second cylinder 32 pushes the upper template 11 to move downward, so that the upper template 11 is separated from the upper fixed plate 12 and falls onto the lower module 6; finally, the linear motion module 5 drives the lower module 6 to move to transport the upper template 11 and the test main board 13 from under the upper fixed plate 12 to outside the upper fixed plate 12.

[0044] Optionally, the lower module 6 includes a lower fixed plate 61 fixedly mounted on the driving end of the linear motion module 6 and a lower template 62 arranged on the upper surface of the lower fixed plate 61, and the lower fixed plate 61 or / and the lower template 62 are provided with a pin hole (not shown in the figure) that matches the replacement positioning pin 14. In this embodiment, a pin hole that matches the replacement positioning pin 14 can be set on the lower fixed plate 61 or the lower template 62. When the pin hole that matches the replacement positioning pin 14 is set on the lower template 62, the lower template 62 is installed before replacing the upper template 11 and the test main board 13; when the pin hole that matches the replacement positioning pin 14 is set on the lower fixed plate 61, before replacing the upper template 11 and the test main board 13, the lower template 62 does not need to be installed, and the upper template 11 can be directly placed on the lower fixed plate 61. It is also possible to set pin holes that match the replacement positioning pin 14 on both the lower fixed plate 61 and the lower template 62, so that the upper template 11 and the test main board can be replaced regardless of whether the lower template 62 is installed.

[0045] Alternatively, if Figure 3 As shown, the PCB board test module also includes a lifting assembly 4, and the upper module 1 is arranged on the lifting assembly 4, and the lifting assembly 4 drives the upper module 1 to do lifting movement. When testing the main board, the lifting assembly 4 drives the upper template 11 and the test main board 13 to move up and down to adjust the height of the upper template 11 and the test main board 13, so that the test main board 13 can be electrically connected with the PCB board placed on the lower template 62, so as to test the PCB board. When disassembling the upper template 11 and the test main board 13, the lifting assembly 4 adjusts the height of the upper fixed plate 12 so that when the second cylinder 32 separates the upper template 11 and the test main board 13, the upper template 11 and the test main board 13 can fall onto the lower module 6 with a smaller height difference, or the upper template 11 and the test main board 13 can just fall onto the lower module 6, thereby reducing or avoiding the vibration when disassembling the upper template 11 and the test main board 13; when installing the upper template 11 and the test main board 13, the lifting assembly 4 adjusts the height of the upper fixed plate 12 so that the second end of the swing rod 21 can be aligned with the gap between the upper template 11 and the lower module 6, thereby extending into the gap between the upper template 11 and the lower module 6.

[0046] Specifically, Figure 3 , Figure 4As shown, the lifting assembly 4 includes a plurality of vertically parallel guide posts 41, a top plate 42 disposed at the upper end of each guide post 41, and a third cylinder 43 fixed on the top plate 42. The upper die set 1 includes an upper fixed plate 12, an upper die plate 11, and a test main board 13. The upper die plate 11 is disposed on the lower surface of the upper fixed plate 12. The test main board 13 is detachably fixed to the upper surface of the upper die plate 11 and is used to test the PCB board. Both sides of the upper fixed plate 12 are provided with the aforementioned automatic mold locking device, and the upper die plate 11 is locked to the lower surface of the upper fixed plate 12 by the aforementioned automatic mold locking device. The upper fixed plate 12 is sleeved on each guide post 41 through a linear bearing, and the output end of the third cylinder 43 is connected to the upper fixed plate 12 to drive the upper fixed plate 12 to perform lifting and lowering motion along each guide post 41.

[0047] In this embodiment, the upper module 1 is connected to the PCB board, specifically, a test pin extending downward and passing through the upper template 11 is connected to the test main board 13, and the test main board 13 is connected to the PCB board through the test pin, so as to perform program burning and testing on the PCB board.

[0048] The embodiment of the present invention further provides a PCB board test device, comprising a work platform (not shown) and at least one PCB board test module arranged on the work platform, and each PCB board test module is installed on the work platform. For a single PCB board test module, the more commonly used upper template 11 is fixed by screws, which has a simple structure and low cost. However, when multiple PCB board test modules are simultaneously installed, the upper template 11 and the test main board 13 can only be removed by manually twisting the screws for multiple times, which greatly reduces the speed of replacing the upper template 11 and the test main board 13 of the device. In the PCB board testing device of the present embodiment, a plurality of PCB board testing modules are arranged on the working platform, and therefore, the PCB board testing device can test PCB boards in batches, and has a faster PCB board testing speed. The PCB board testing device of the present embodiment relatively replaces the test main board 13 and the upper template 11 more frequently, and each replacement involves a plurality of PCB board testing modules. By arranging automatic mold locking devices on both sides of the upper fixed plate 12 in each PCB board testing module, the upper template 11 can be locked or unlocked at the same time, which has an extremely high replacement speed and improves work efficiency. In addition, it also makes up for the cost problem caused by the additional automatic mold locking device.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic mold locking device for locking the upper mold plate to the lower surface of the upper fixed plate, characterized in that: The automatic mold locking device includes a locking mechanism, which includes a swing rod, a hinge seat and a traction member, wherein the hinge seat is fixed to the edge of the upper fixed plate, the middle part of the swing rod is hinged to the hinge seat, the first end of the swing rod extends toward the middle of the upper fixed plate, and the second end of the swing rod extends downward and is bent to the lower surface of the upper template, the traction member is fixed to the upper fixed plate and is connected to the first end of the swing rod and pulls the first end of the swing rod to swing upward or swing downward; the locking mechanism also includes a first fixed seat, the traction member is fixed to the first fixed seat and is located between the first ends of the two swing rods, both sides of the first fixed seat are provided with elastic members, the upper ends of the two elastic members are respectively connected to the two sides of the first fixed seat, and the lower ends of the two elastic members are respectively connected to the first ends of the two swing rods, and the elastic member continuously applies a force that causes the first end of the swing rod to swing upward, so that the second end of the swing rod can continuously support the upper template; The automatic mold locking device also includes a separation mechanism, which includes a second fixed seat and a second cylinder, the second fixed seat is fixed to the upper fixed plate, the second cylinder is fixed to the second fixed seat, and the push rod of the second cylinder extends downward and passes through the upper fixed plate and abuts against the upper mold plate.

2. The automatic mold clamping device according to claim 1, characterized in that: The number of the articulated seats and the number of the swing rods are both two, and the two articulated seats are arranged side by side. The locking mechanism also includes an articulated rod and a connecting rod. The two ends of the articulated rod are respectively passed through the two articulated seats, and the two ends of the articulated rod are respectively hinged to the middle parts of the two swing rods, the two ends of the connecting rod are respectively connected to the first ends of the two swing rods, and the traction member is connected to the middle part of the connecting rod.

3. The automatic mold clamping device according to claim 2, characterized in that: The traction member is a first cylinder, and a push rod of the first cylinder extends downward and is connected to the middle portion of the connecting rod.

4. The automatic mold clamping device according to claim 3, characterized in that: The first fixed seat includes a connecting plate and a mounting plate for fixing the first cylinder, the lower end of the connecting plate is fixedly connected to the upper fixing plate, the upper end of the connecting plate extends upward to a position higher than the first ends of the two swing rods, the mounting plate is fixed to the upper end of the connecting plate, and two fixing parts are respectively arranged on both sides of the mounting plate.

5. The automatic mold clamping device according to claim 3, characterized in that: A hinge is provided at the lower end of the push rod of the first cylinder, the upper end of the hinge is hinged to the lower end of the push rod of the first cylinder, and the lower end of the hinge is connected to the connecting rod.

6. A PCB board test module, comprising an upper module, wherein the upper module comprises an upper fixing plate, an upper template disposed on the lower surface of the upper fixing plate, and a test main board detachably fixed to the upper surface of the upper template, characterized in that: Both sides of the upper fixed plate are provided with the automatic mold locking device described in any one of claims 1 to 5.

7. The PCB board test module according to claim 6, characterized in that: The PCB board test module also includes a lower module and a linear motion module extending to the bottom of the upper module, the lower module is fixedly mounted on the driving end of the linear motion module and is driven by the linear motion module to reciprocate along the length direction of the linear motion module, the lower surface of the upper module is provided with a replacement positioning pin extending downward and inserted into the lower module and a limit pin extending downward and abutting against the lower module, and the length of the limit pin is less than the length of the replacement positioning pin.

8. The PCB board test module according to claim 7, characterized in that: The lower die assembly includes a lower fixing plate fixedly mounted on the driving end of the linear motion die assembly and a lower die plate arranged on the upper surface of the lower fixing plate. The lower fixing plate and / or the lower die plate are provided with a pin hole matching the replacement positioning pin.

9. A PCB board testing device, comprising a working platform, characterized in that: The PCB board testing device comprises at least one PCB board testing module according to any one of claims 6 to 8, and each of the PCB board testing modules is installed on the working platform.

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