Program burning test machine

Abstract

The present invention belongs to the technical field of PCB production and testing equipment, and particularly relates to a program burning test machine, comprising a working platform, a loading area and a unloading area are respectively arranged at both ends of the working platform, two groups of working groups are arranged on the working platform, each working group comprises a gantry, a conveying mechanism, a plurality of PCB board test modules and a center positioning mechanism, the two gantry are arranged side by side between the loading area and the unloading area, each PCB board test module comprises a lifting mechanism, an upper module, a linear motion module and a lower module, the first end of the linear motion module is located below the upper module, the second end of the linear motion module extends outside the upper module, and the second end of each linear motion module of each working group and the corresponding center positioning mechanism are located on the same straight line parallel to the crossbeam. The PCB board test modules are densely distributed on the working platform, which greatly improves the test speed of the PCB board, improves the work efficiency, simplifies the motion track of the conveying mechanism, and improves the work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of PCB production and testing equipment, and in particular relates to a program burning test machine. Background Art

[0002] The program burning test machine is mainly used for program burning and testing of PCB boards. The core structure of the program burning test machine is a PCB board test module. The PCB board test module includes a lifting mechanism, an upper module, a linear motion module and a lower module. The upper module is arranged on the lifting mechanism, and the lifting mechanism drives the upper module to do lifting and lowering movement. The first end of the linear motion module is located below the upper module, and the second end of the linear motion module extends to the side of the upper module. The lower module is arranged on the linear motion module. Most of the program burning test machines in the prior art are single PCB board test modules with low working efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a program burning test machine, aiming to solve the technical problem of low working efficiency of program burning test machines in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a program burning test machine, including a working platform, a loading area and a unloading area are respectively arranged at two ends of the working platform, two groups of working groups arranged side by side and opposite to each other are arranged on the working platform, each of the working groups includes a gantry, a transport mechanism arranged on the crossbeam of the gantry and moving along the crossbeam of the gantry, a plurality of groups of PCB board test modules arranged side by side under the gantry, and a center positioning mechanism arranged in the loading area, the two gantries are arranged side by side between the loading area and the unloading area, and the two ends of the crossbeams of the two gantries are respectively facing the two ends of the working platform;

[0005] Each of the PCB board test modules includes a lifting mechanism, an upper module, a linear motion module and a lower module. The upper module is arranged on the corresponding lifting mechanism and is driven by the lifting mechanism to perform lifting motion. The first end of the linear motion module is located below the upper module, and the second end of each of the linear motion modules extends to the side of the upper module. The second end of each of the linear motion modules of each operating group and the corresponding center positioning mechanism are both located on the same straight line parallel to the beam, and the lower module is fixedly mounted on the driving end of the linear motion module.

[0006] Optionally, the transport mechanism includes a sliding assembly, a lifting assembly and a grabbing assembly arranged on the lifting assembly and used to grab the PCB board, the sliding assembly is arranged on the beam and used to drive the lifting assembly to move along the beam, and the lifting assembly is fixedly installed on the driving end of the sliding assembly and used to drive the grabbing assembly to perform lifting and lowering movements.

[0007] Optionally, the center positioning mechanism includes a positioning platform, an X-axis positioning mechanism, a Y-axis positioning mechanism, and a first mounting plate disposed below the positioning platform;

[0008] The X-axis positioning mechanism includes an X-axis driving assembly and two X-axis sliding assemblies arranged opposite to each other, each of the X-axis sliding assemblies includes a first guide rail fixed to the upper surface of the first mounting plate and extending along the X-axis direction, a first slider slidably connected to the first guide rail, and a first stopper fixed to the first slider and extending upward to the positioning platform and protruding from the positioning platform, the X-axis driving assembly is connected to the two first sliders and drives the two first sliders to move synchronously relative to or away from each other;

[0009] The Y-axis positioning mechanism includes a Y-axis driving assembly and two oppositely arranged Y-axis sliding assemblies, each of the Y-axis sliding assemblies includes a second guide rail fixed to the lower surface of the first mounting plate and extending along the Y-axis direction, a second slider slidably connected to the second guide rail, and a second stopper fixed to the second slider and extending upward to the positioning platform and protruding from the positioning platform. The Y-axis driving assembly is connected to the two second sliders and drives the two second sliders to move synchronously relative to or away from each other.

[0010] Optionally, the X-axis drive assembly includes a first driving wheel, a first driven wheel, a first synchronous belt and a first motor, the first driving wheel and the first driven wheel are arranged between the two first guide rails along the X-axis direction, and the first driving wheel and the first driven wheel are both rotatably set on the first mounting plate, the first synchronous belt is wound around the first driving wheel and the first driven wheel, the two side edges of the first synchronous belt are respectively fixedly connected to the two first sliders, the first motor is fixed to the first mounting plate and the output shaft of the first motor is connected to the first driving wheel.

[0011] Optionally, the Y-axis drive assembly includes a second driving wheel, a second driven wheel, a second synchronous belt and a second motor, the second driving wheel and the second driven wheel are arranged between the two second guide rails along the Y-axis direction, and the second driving wheel and the second driven wheel are both rotatably set on the first mounting plate, the second synchronous belt is wound around the second driving wheel and the second driven wheel, the two side edges of the second synchronous belt are respectively fixedly connected to the two second sliders, the second motor is fixed to the first mounting plate and the output shaft of the second motor is connected to the second driving wheel.

[0012] Optionally, the upper mold assembly includes an upper fixed plate, an upper mold plate arranged on the lower surface of the upper fixed plate, and a test main board detachably arranged on the upper surface of the upper mold plate, and opposite sides of the upper fixed plate are provided with a locking mechanism for locking the upper mold plate to the lower surface of the upper fixed plate and a separation mechanism for separating the upper mold plate from the lower surface of the upper fixed plate.

[0013] Optionally, 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 template, the traction member is fixed to the upper fixed plate and connected to the first end of the swing rod and pulls the first end of the swing rod to swing upward or downward.

[0014] Optionally, the separation mechanism includes a second fixed seat and a first cylinder, the second fixed seat is fixed to the upper fixed plate, the first cylinder is fixed to the second fixed seat, and the push rod of the first cylinder extends downward and passes through the upper fixed plate and abuts against the upper template.

[0015] Optionally, a connection socket electrically connected to the test card is provided on the upper fixing plate, and a plurality of elastic contacts extending downward and abutting against the test main board are provided on the connection socket.

[0016] Optionally, the lower surface of the upper mold plate is provided with a replacement positioning pin extending downward and inserted into the lower mold assembly and a limit pin extending downward and abutting against the lower mold assembly, and the length of the limit pin is smaller than the replacement positioning pin.

[0017] The beneficial effects of the present invention are as follows: in the present invention, two rows of work groups arranged back to back are arranged on the work platform, and a plurality of groups of PCB board test modules are arranged under the two gantries, so that the PCB board test modules can be densely distributed on the work platform, so that more PCB board test modules can work simultaneously on the work platform, which greatly improves the test speed of the PCB board and improves the work efficiency; the second end of each linear motion module of each work group and the corresponding center positioning mechanism are located on the same straight line parallel to the crossbeam, the center positioning mechanism positions the PCB board at the position where the straight line passes, each transport mechanism grabs the PCB board positioned in the center positioning mechanism of the corresponding row, each transport mechanism moves in a straight line along the crossbeam and places the PCB board on the PCB board test module of the corresponding row in sequence, therefore, the motion trajectory of the transport mechanism is a straight line, avoiding simultaneous movement in the X-axis and Y-axis directions on the plane parallel to the work platform, simplifying the motion trajectory of the transport mechanism, simplifying the structure of the transport mechanism, improving the transport speed of the transport mechanism, and thus improving the work efficiency. 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 top view of a program burning test machine provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a three-dimensional perspective of a program burning test machine provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of a gantry and a transport mechanism in a program burning test machine provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of a centerline positioning mechanism in a program burning test machine provided by an embodiment of the present invention;

[0023] Figure 5 Schematic diagram of the bottom view of the centerline positioning mechanism in the program burning test machine provided by the embodiment of the present invention

[0024] Figure 6 A schematic diagram of a centerline positioning mechanism in a program burning test machine provided by an embodiment of the present invention after the positioning platform is removed;

[0025] Figure 7 A schematic diagram of a PCB board test module in a program burning test machine provided in an embodiment of the present invention;

[0026] Figure 8 A rear view of a PCB board test module in a program burning test machine provided in an embodiment of the present invention;

[0027] Fig. 9 An exploded view of a PCB board test module in a program burning test machine provided in an embodiment of the present invention.

[0028] Among them, the reference numerals in the figures are:

[0029] 1—Working platform;

[0030] 11—loading area, 12—unloading area, 2—gantry, 21—crossbeam;

[0031] 3—transport mechanism, 31—sliding assembly, 311—transmission belt, 312—third slider, 313—first slide rail, 314—third motor, 32—lifting assembly, 321—first lifting plate, 322—guide rod, 323—second mounting plate, 324—third cylinder, 33—grasping assembly;

[0032] 4—PCB board test module, 41—lifting mechanism, 411—guide column, 412—top plate, 413—lifting cylinder, 42—upper module, 421—upper template, 4211—replacement of positioning pin, 4212—limiting pin, 422—upper fixing plate, 423—test main board, 4231—static contact, 424—connecting seat, 425—elastic contact, 43—linear motion module, 44—lower module, 441 —lower template, 442—lower fixed plate, 45—locking mechanism, 451—swing rod, 452—hinge seat, 453—traction member, 454—hinge rod, 455—connecting rod, 456—first fixed seat, 4561—connecting plate, 4562—third mounting plate, 4563—fixing part, 457—elastic member, 458—hinge member, 46—separation mechanism, 461—second fixed seat, 462—first cylinder;

[0033] 5—center positioning mechanism, 51—positioning platform, 511—second hollow groove, 512—third hollow groove, 513—fourth hollow groove, 52—first mounting plate, 521—first hollow groove, 53—X-axis drive assembly, 531—first driving wheel, 532—first driven wheel, 533—first synchronous belt, 534—first motor, 54—X-axis sliding assembly, 541—first guide rail, 542—first slider, 543—first stopper, 55—Y-axis drive assembly, 551—first Second driven wheel, 552—second synchronous belt, 553—second motor, 56—Y-axis sliding assembly, 561—second guide rail, 562—second slider, 563—second stopper, 57—X-axis sensor assembly, 571—X-axis sensor sheet, 572—X-axis origin position sensor, 573—X-axis limit position sensor, 58—Y-axis sensor assembly, 581—Y-axis sensor sheet, 582—Y-axis origin position sensor, 583—Y-axis limit position sensor, 59—workpiece sensor. DETAILED DESCRIPTION

[0034] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the attached Figure 1 To Attachment Fig. 9 , 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 Fig. 9 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, an embodiment of the present invention provides a program burning test machine, including a work platform 1, a loading area 11 and a unloading area 12 are respectively provided at two ends of the work platform 1, and two groups of work groups arranged side by side and opposite to each other are provided on the work platform 1, each work group includes a gantry 2, a transport mechanism 3 arranged on a crossbeam 21 of the gantry 2 and moving along the crossbeam 21 of the gantry 2, a plurality of groups of PCB board test modules 4 arranged side by side under the gantry 2, and a center positioning mechanism 5 arranged in the loading area 11, two gantries 2 are arranged side by side between the loading area 11 and the unloading area 12, and the two ends of the crossbeams 21 of the two gantries 2 are respectively facing the two ends of the work platform 1;

[0039] Each PCB board test module 4 includes a lifting mechanism 41, an upper module 42, a linear motion module 43 and a lower module 44. Each upper module 42 is arranged on the corresponding lifting mechanism 41 and is driven by the lifting mechanism 41 to perform lifting movement. The first end of the linear motion module 43 is located below the upper module 42, and the second end of the linear motion module 43 extends to the side of the upper module 42. The second end of each linear motion module 43 of each operating group and the corresponding center positioning mechanism 5 are all located on the same straight line parallel to the beam 21, and the lower module 44 is fixedly installed on the driving end of the linear motion module 43. In this embodiment, two rows of work groups arranged back to back are arranged on the work platform 1, and multiple groups of PCB board test modules 4 are arranged under the two gantries 2, so that the PCB board test modules 4 can be densely distributed on the work platform 1, so that more PCB board test modules 4 can work simultaneously on the work platform 1, which greatly improves the test speed of the PCB board and improves the work efficiency; the second end of each linear motion module 43 of each work group and the corresponding center positioning mechanism 5 are located on the same straight line parallel to the beam 21, and the center positioning mechanism 5 positions the PCB board at the position where the straight line passes, and each transport mechanism 3 grabs the PCB board positioned in the center positioning mechanism 5 of the corresponding row, and each transport mechanism 3 moves in a straight line along the beam 21 and puts the PCB board into the PCB board test module 4 of the corresponding row in sequence. Therefore, the motion trajectory of the transport mechanism 3 is a straight line, avoiding movement in the X-axis and Y-axis directions on the plane parallel to the work platform 1 at the same time, simplifying the motion trajectory of the transport mechanism 3, and also simplifying the structure of the transport mechanism 3, thereby improving the transport speed of the transport mechanism 3.

[0040] In this embodiment, the two operating groups are arranged side by side and facing each other, and the two rows of PCB board test modules 4 are distributed facing each other along the length direction of the beam 21 with the center line of the working platform 1 as the boundary, and the center line passes through the loading area 11 and the unloading area 12. The first end of each linear motion module 43 is located below the upper module 42, and the second end of each linear motion module 43 extends to the side of the upper module 42. Specifically, the first end of each linear motion module 43 in the two rows of operating groups is facing the center line of the working platform 1, and the second end of each linear motion module 43 in one row of operating groups is facing the direction away from the center line, that is, toward one side of the working platform 1, and the second end of each linear motion module 43 in the other row of operating groups is facing the direction away from the center line, that is, toward the other side of the working platform 1. The two rows of linear motion modules 43 are distributed along the length direction of the beam 21 with the center line as the boundary.

[0041] In this embodiment, the transport mechanism 3 is a structure that can move along the crossbeam 21 and grab the PCB board and drive the PCB board to perform lifting motion.

[0042] Alternatively, if Figure 3As shown, the transport mechanism 3 includes a sliding assembly 31, a lifting assembly 32, and a grabbing assembly 33 disposed on the lifting assembly 32 and used to grab the PCB board. The sliding assembly 31 is disposed on the crossbeam 21 to drive the lifting assembly 32 to move along the crossbeam 21. The lifting assembly 32 is fixedly mounted on the driving end of the sliding assembly 31 and is used to drive the grabbing assembly 33 to perform lifting motion. In this embodiment, the lifting assembly 32 is driven to move along the crossbeam 21 by the sliding assembly 31, and the lifting assembly 32 drives the grabbing assembly 33 to perform lifting motion, and the grabbing assembly 33 is disposed on the lifting assembly 32. Therefore, the sliding component 31 can drive the lifting component 32 and the grabbing component 33 to move to the central positioning mechanism 5, the lifting component 32 drives the grabbing component 33 to lift and lower, thereby adjusting the height so that the grabbing component 33 can grab the PCB board, and the sliding component 31 then drives the lifting component 32 and the grabbing component 33 to move to one of the PCB board test modules 4, the lifting component 32 drives the grabbing component 33 to lift and lower, so that the grabbing component 33 places the PCB board on the PCB board test module 4.

[0043] In this embodiment, Figure 3 As shown, the sliding assembly 31 may include a driving wheel (not shown in the figure), a driven wheel (not shown in the figure), a transmission belt 311, a third slider 312, a first slide rail 313 and a third motor 314. The driving wheel and the driven wheel are respectively arranged at both ends of the beam 21, the transmission belt 311 is wound around the driving wheel and the driven wheel, the output shaft of the third motor 314 is connected to the driving wheel to drive the driving wheel to rotate, the first slide rail 313 is fixed to the beam 21 along the length direction of the beam 21, the third slider 312 is slidably connected to the first slide rail 313, and the third slider 312 is fixedly connected to the transmission belt 311 and slides along the beam 21 driven by the transmission belt 311, the lifting assembly 32 is fixed to the third slider 312, and the third slider 312 drives the lifting assembly 32 and the grabbing assembly 33 to slide along the beam 21 when sliding along the beam 21. In other embodiments, the sliding assembly 31 can also include a fourth motor, a first screw rod, a first screw rod fixing seat, a first nut, a second slide rail and a fourth slider. The first screw rod fixing seat is fixed to the two ends of the beam 21, and the two ends of the first screw rod are rotatably connected to the two first screw rod fixing seats respectively. The output shaft of the fourth motor is connected to one end of the first screw rod to drive the first screw rod to rotate. The first nut is sleeved on the first screw rod and threadedly connected to the first screw rod. The second slide rail is fixed to the beam 21 along the length direction of the beam 21 and is arranged parallel to the first screw rod. The fourth slider is slidably connected to the second slide rail and fixedly connected to the first nut, and the lifting assembly 32 is fixed on the fourth slider.

[0044] In this embodiment, the driving end of the sliding assembly 31 specifically refers to the third slider 312 , and the linear motion module 43 specifically refers to the slider on the linear motion module 43 for driving the lower module 44 to move.

[0045] In this embodiment, Figure 3 As shown, the lifting assembly 32 may include a first lifting plate 321, a guide rod 322, a second mounting plate 323 and a third cylinder 324. The first lifting plate 321 is fixed to the third slider 312 or the fourth slider. The guide rod 322 is slidably connected to the first lifting plate 321 through a linear bearing. The second mounting plate 323 is connected to the lower end of each guide rod 322. The third cylinder 324 is fixed to the first lifting plate 321 and the output push rod of the third cylinder 324 extends downward and is fixedly connected to the second mounting plate 323. The grabbing assembly 33 is fixed to the second mounting plate 323. In this embodiment, the lifting assembly 32 can also include a second lifting plate, a fifth motor, a second screw rod, a second screw rod fixing seat, a second nut, a third slide rail and a fifth slider. The second lifting plate is fixedly connected to the third slider 312 or the fourth slider. The second screw rod fixing seat is fixed to the upper and lower ends of the second lifting plate. The two ends of the second screw rod are respectively rotatably connected to the two second screw rod fixing seats. The output shaft of the fifth motor is connected to one end of the second screw rod to drive the second screw rod to rotate. The second nut is sleeved on the second screw rod and threadedly connected to the second screw rod. The third slide rail is fixed to the second lifting plate in the up and down directions and is arranged parallel to the second screw rod. The fifth slider is slidably connected to the third slide rail and fixedly connected to the second nut. The grabbing assembly 33 is fixed on the fifth slider.

[0046] In this embodiment, the grabbing component 33 may be a plurality of suction cups for adsorbing the PCB board, or may be a clamping claw for clamping the PCB board.

[0047] In this embodiment, the center positioning mechanism is a structure that can position PCB boards of different sizes at the same center position in the center positioning mechanism, such as including two push rods distributed and arranged oppositely along the X-axis direction and two push rods distributed and arranged oppositely along the Y-axis direction, and PCB boards of different sizes can be positioned at the same center position by four sets of push rods working simultaneously.

[0048] In other embodiments of the center positioning mechanism, Figures 4 to 6 As shown, the center positioning mechanism 5 includes a positioning platform 51, an X-axis positioning mechanism, a Y-axis positioning mechanism, and a first mounting plate 52 disposed below the positioning platform 51;

[0049] The X-axis positioning mechanism includes an X-axis driving assembly 53 and two X-axis sliding assemblies 54 arranged opposite to each other. Each X-axis sliding assembly 54 includes a first guide rail 541 fixed to the upper surface of the first mounting plate 52 and extending along the X-axis direction, a first slider 542 slidably connected to the first guide rail 541, and a first stopper 543 fixed to the first slider 542 and extending upward to the positioning platform 51 and protruding from the positioning platform 51. The X-axis driving assembly 53 is connected to the two first sliders 542 and drives the two first sliders 542 to move synchronously relative to or away from each other.

[0050] The Y-axis positioning mechanism includes a Y-axis driving assembly 55 and two Y-axis sliding assemblies 56 arranged opposite to each other. Each Y-axis sliding assembly 56 includes a second guide rail 561 fixed to the lower surface of the first mounting plate 52 and extending along the Y-axis direction, a second slider 562 slidably connected to the second guide rail 561, and a second stopper 563 fixed to the second slider 562 and extending upward to the positioning platform 51 and protruding from the positioning platform 51. The Y-axis driving assembly 55 is connected to the two second sliders 562 and drives the two second sliders 562 to move synchronously relative to or away from each other.

[0051] The center positioning mechanism 5 of this embodiment includes two first guide rails 541 extending along the X-axis direction and two second guide rails 561 extending along the Y-axis direction. The two first sliders 542 are respectively arranged on the two first guide rails 541, and the X-axis driving component 53 drives the two first sliders 542 to move synchronously relative to or away from each other. The two second sliders 562 are respectively arranged on the two second guide rails 561, and the Y-axis driving component 55 drives the two second sliders 562 to move synchronously relative to or away from each other. When in use, the workpiece is placed on the positioning platform 51, and the X-axis driving assembly 53 drives the two first sliders 542 to move relative to each other along the X-axis direction, and the two first sliders 542 respectively drive the two first stop blocks 543 to move relative to each other, so that the two first stop blocks 543 move synchronously to the middle of the positioning platform 51 until the two first stop blocks 543 both abut against the workpiece, thereby positioning the workpiece at the middle position of the positioning platform 51 in the X-axis direction; at the same time, the Y-axis driving assembly 55 drives the two second sliders 562 to move relative to each other along the Y-axis direction, and the two second sliders 562 respectively drive the two second stop blocks 563 to move relative to each other, so that the two second stop blocks 563 move synchronously to the middle of the positioning platform 51 until the two second stop blocks 563 both abut against the workpiece, thereby positioning the workpiece at the middle position of the positioning platform 51 in the Y-axis direction. With the cooperation of the X-axis positioning mechanism and the Y-axis positioning mechanism, two blocks move synchronously relative to each other in the X-axis direction and the Y-axis direction, so as to position the workpiece in the middle of the positioning platform 51. After workpieces of different sizes are positioned by the center positioning mechanism 5 of this embodiment, the center of each workpiece is positioned at the same point, and the handling grabbing points of each workpiece are the same, avoiding the need to redesign the grabbing and handling path or grabbing points.

[0052] In addition, in this embodiment, the first guide rail 541 and the second guide rail 561 are respectively installed on the upper surface and the lower surface of the first mounting plate 52 to avoid interference between the first guide rail 541 and the second guide rail 561, and the X-axis positioning mechanism and the Y-axis positioning mechanism including multiple parts are integrated on the first mounting plate 52 to reduce the volume of the center positioning mechanism 5.

[0053] In this embodiment, the X-axis direction and the Y-axis direction are specifically shown in the attached example. Figure 4 To Attachment Figure 7 shown.

[0054] In this embodiment, the X-axis driving assembly 53 can be two driving assemblies that move synchronously and in opposite directions, such as two cylinders that are arranged opposite to each other, and the push rods of the two cylinders are fixedly connected to the two first sliding blocks 542 respectively.

[0055] In this embodiment, the X-axis drive assembly 53 can also be a single drive assembly, optionally as Figure 5 , Figure 6 As shown, the X-axis driving assembly 53 includes a first driving wheel 531, a first driven wheel 532, a first synchronous belt 533 and a first motor 534. The first driving wheel 531 and the first driven wheel 532 are arranged between the two first guide rails 541 along the X-axis direction, and the first driving wheel 531 and the first driven wheel 532 are both rotatably arranged on the first mounting plate 52. The first synchronous belt 533 is wound around the first driving wheel 531 and the first driven wheel 532. Both sides of the first synchronous belt 533 are fixedly connected to the two first sliders 542 respectively. The first motor 534 is fixed to the first mounting plate 52 and the output shaft of the first motor 534 is connected to the first driving wheel 531. In this embodiment, the first synchronous belt 533 is wound around the first driving wheel 531 and the first driven wheel 532. Under the drive of the first motor 534, the two sides of the first synchronous belt 533 move synchronously in opposite directions. Since the two sides of the first synchronous belt 533 are respectively fixedly connected to the two first sliders 542, the first synchronous belt 533 drives the two first sliders 542 to move in opposite directions synchronously through the two side edges. When used to position a workpiece, the two side edges of the first synchronous belt 533 drive the two first sliders 542 to move synchronously relative to or away from each other, thereby positioning the workpiece at the middle position of the positioning platform 51 along the X-axis direction. The X-axis drive assembly 53 of this embodiment has higher synchronization, avoiding errors caused by the inability of the dual drive assembly to be fully synchronized.

[0056] In this embodiment, the two sides of the first synchronous belt 533 refer to two sections of synchronous belts that are parallel and move in opposite directions when the first synchronous belt 533 is wound around the first driving wheel 531 and the first driven wheel 532 .

[0057] Alternatively, if Figure 6As shown, the center positioning mechanism 5 further includes an X-axis sensor assembly 57, which includes an X-axis sensing piece 571, an X-axis origin position sensor 572, and an X-axis limit position sensor 573. The X-axis sensing piece 571 is fixed on one of the first sliders 542, and the X-axis origin position sensor 572 and the X-axis limit position sensor 573 are both fixed on the first mounting plate 52 and arranged along the moving path of the X-axis sensing piece 571. In this embodiment, the initial positions of the two first stoppers 543 are positioned by the X-axis origin position sensor 572 to prevent the first slider 542 from excessively moving and slipping off the first guide rail 541, and the X-axis limit position sensor 573 limits the limit position of the relative movement of the two first stoppers 543 to prevent the two first stoppers 543 from colliding. In addition, the two first sliders 542 are fixedly connected to the two side edges of the first synchronous belt 533 respectively. When the two first sliders 542 move to the first driving wheel 531 and the first driven wheel 532 respectively, it is very easy to distort the first synchronous belt 533 and cause damage to the first synchronous belt 533. The X-axis origin position sensor 572 and the X-axis limit position sensor 573 can also prevent the two first sliders 542 from moving to the first driving wheel 531 and the first driven wheel 532 respectively, thereby avoiding damage to the first synchronous belt 533.

[0058] Furthermore, if Figure 6 As shown, the X-axis origin position sensor 572 is located at the outer position of the first mounting plate 52 along the X-axis direction, and the X-axis limit position sensor 573 is located at the middle position of the first mounting plate 52 along the X-axis direction. In this way, at the origin position, the two first stoppers 543 are located at the outer side of the first mounting plate 52 along the X-axis direction, that is, the two first stoppers 543 are located at the outer side of the first mounting plate 52 along the X-axis direction. When starting work, the workpiece can be directly placed on the positioning platform 51 to avoid unnecessary actions of the X-axis positioning mechanism before starting work.

[0059] In this embodiment, the Y-axis driving assembly 55 can be two driving assemblies that move synchronously and in opposite directions, such as two cylinders that are arranged opposite to each other, and the push rods of the two cylinders are fixedly connected to the two second sliders 562 respectively.

[0060] In this embodiment, the Y-axis driving assembly 55 can also be a single driving assembly, optionally, as Figure 5As shown, the Y-axis driving assembly 55 includes a second driving wheel (not shown in the figure), a second driven wheel 551, a second synchronous belt 552 and a second motor 553, the second driving wheel and the second driven wheel 551 are arranged between the two second guide rails 561 along the Y-axis direction, and the second driving wheel and the second driven wheel 551 are both rotatably arranged on the first mounting plate 52, the second synchronous belt 552 is wound around the second driving wheel and the second driven wheel 551, the two sides of the second synchronous belt 552 are respectively fixedly connected to the two second sliders 562, the second motor 553 is fixed on the first mounting plate 52 and the output shaft of the second motor 553 is connected to the second driving wheel. In this embodiment, the second synchronous belt 552 is wound around the second driving wheel and the second driven wheel 551, and under the drive of the second motor 553, the two sides of the second synchronous belt 552 move in the opposite direction synchronously. Since the two sides of the second synchronous belt 552 are respectively fixedly connected to the two second sliders 562, the second synchronous belt 552 drives the two second sliders 562 to move in the opposite direction synchronously through the two sides. When used to position the workpiece, the two sides of the second synchronous belt 552 drive the two second sliders 562 to move synchronously relative to or away from each other, thereby positioning the workpiece at the middle position along the Y-axis direction of the positioning platform 51. The Y-axis drive assembly 55 of this embodiment has higher synchronization, avoiding errors caused by the inability of the dual drive assemblies to be fully synchronized.

[0061] In this embodiment, the two sides of the second synchronous belt 552 refer to two sections of synchronous belts that are parallel and move in opposite directions when the second synchronous belt 552 is wound around the second driving wheel and the second driven wheel 551 .

[0062] Alternatively, if Figure 5 As shown, the center positioning mechanism 5 further includes a Y-axis sensor assembly 58, which includes a Y-axis sensing piece 581, a Y-axis origin position sensor 582, and a Y-axis limit position sensor 583. The Y-axis sensing piece 581 is fixed on one of the second sliders 562, and the Y-axis origin position sensor 582 and the Y-axis limit position sensor 583 are fixed on the first mounting plate 52 and arranged along the moving path of the Y-axis sensing piece 581. In this embodiment, the initial positions of the two second stoppers 563 are positioned by the Y-axis origin position sensor 582 to prevent the second slider 562 from excessively moving and slipping off the second guide rail 561, and the Y-axis limit position sensor 583 limits the limit position of the relative movement of the two second stoppers 563 to prevent the two second stoppers 563 from colliding. In addition, the two second sliders 562 are fixedly connected to the two sides of the second synchronous belt 552 respectively. When the two second sliders 562 move to the second driving wheel and the second driven wheel 551 respectively, it is very easy to distort the second synchronous belt 552 and cause damage to the second synchronous belt 552. The Y-axis origin position sensor 582 and the Y-axis limit position sensor 583 can also prevent the two second sliders 562 from moving to the second driving wheel and the second driven wheel 551 respectively, avoiding damage to the second synchronous belt 552.

[0063] Furthermore, if Figure 5 As shown, the Y-axis origin position sensor 582 is located at the outer position along the Y-axis direction on the first mounting plate 52, and the Y-axis limit position sensor 583 is located at the middle position along the Y-axis direction on the first mounting plate 52. In this way, at the origin position, the two second stoppers 563 are located at the outer side of the first mounting plate 52 along the Y-axis direction, that is, the two second stoppers 563 are located at the outer side of the first mounting plate 52 along the Y-axis direction. When starting work, the workpiece can be directly placed on the positioning platform 51 to avoid unnecessary actions of the Y-axis positioning mechanism before starting work.

[0064] Alternatively, if Figure 6 As shown, both sides of the first mounting plate 52 along the Y-axis direction are provided with first hollow grooves 521 extending along the Y-axis direction and for the second stopper 563 to pass through and move. Since the first mounting plate 52 is arranged below the positioning platform 51, and the second guide rail 561 is fixed to the lower surface of the first mounting plate 52, the second stopper 563 is extended upward. If the second stopper 563 first extends outward and then extends upward to avoid the first mounting plate 52, it is very easy to cause the stopper structure to be complicated and the stability to be poor. In this embodiment, by providing the first hollow groove 521 on the first mounting plate 52, the second stopper 563 can directly extend upward, thereby simplifying the structure and increasing the stability of the second stopper 563.

[0065] Alternatively, if Figure 4 As shown, the positioning platform 51 is provided with a second hollow groove 511 extending along the X-axis direction and allowing the first stopper 543 to pass through and move on both sides of the X-axis direction, and the positioning platform 51 is provided with a third hollow groove 512 extending along the Y-axis direction and allowing the second stopper 563 to pass through and move on both sides of the Y-axis direction. The positioning platform 51 is used to place a workpiece, and the two first stops 543 pass through the second hollow groove 511 and protrude from the positioning platform 51. When the two first sliders 542 drive the two first stops 543 to move, the second hollow groove 511 provides movement space for the two first stops 543, so as to avoid the positioning platform 51 interfering with the movement of the two first stops 543; the two second stops 563 pass through the third hollow groove 512 and protrude from the positioning platform 51. When the two second sliders 562 drive the two second stops 563 to move, the third hollow groove 512 provides movement space for the two second stops 563, so as to avoid the positioning platform 51 interfering with the movement of the two second stops 563.

[0066] Alternatively, if Figure 4 , Figure 6As shown, a workpiece sensor 59 is provided in the middle of the first mounting plate 52, and a fourth hollow groove 513 is provided on the positioning platform 51, which is directly opposite to the workpiece sensor 59. In this embodiment, when the workpiece is loaded onto the positioning platform 51, the workpiece sensor 59 senses the workpiece, thereby triggering the X-axis positioning mechanism and the Y-axis positioning mechanism to start working at the same time, that is, triggering the first motor 534 and the second motor 553 to work.

[0067] Alternatively, if Figure 7 As shown, the upper module 42 includes an upper fixed plate 422, an upper template 421 disposed on the lower surface of the upper fixed plate 422, and a test main board 423 detachably disposed on the upper surface of the upper template 421. The upper fixed plate 422 is provided with a locking mechanism 45 for locking the upper template 421 to the lower surface of the upper fixed plate 422 and a separation mechanism 46 for separating the upper template 421 from the lower surface of the upper fixed plate 422 on opposite sides. In this embodiment, the upper fixed plate 422 is provided with the aforementioned locking mechanism 45 on both sides. The two locking mechanisms 45 support the upper template 421 from both sides of the upper template 421, and push the upper template 421 from both sides of the upper template 421 to move to lock the upper template 421, so that the upper template 421 can be quickly and automatically locked and unlocked in the PCB board test module 4, which speeds up the speed of disassembling and replacing the test main board 423 and the upper template 421 of the PCB board test module 4. In the related art, in order to accurately locate the position between the upper fixing plate 422 and the upper template 421, the upper fixing plate 422 and the upper template 421 are positioned by installing positioning pins. Since the positioning pins are tightly matched, it is difficult to separate the upper template 421 from the upper fixing plate 422. When the locking mechanism 45 is in the unlocked state, the separation mechanism 46 can push the upper template 421 to move downward, thereby automatically separating the upper template 421 from the upper fixing plate 422. Therefore, the locking mechanism 45 and the separation mechanism 46 speed up the locking and separation of the upper template 421 of the PCB board test module 4, and speed up the replacement of the upper template 421 and the test main board 423.

[0068] In addition, during the process of automatically installing the test main board 423 and the upper template 421, the test main board 423 is first fixed to the upper surface of the upper template 421, and the upper template 421 is then placed on the lower module 44; then, the lower module 44 is driven by the linear motion module 43 to move to the bottom of the upper fixed plate 422, and the test main board 423 and the upper template 421 are also brought to the bottom of the upper fixed plate 422; then, the two locking mechanisms 45 start working, connecting the upper template 421 to the test main board 423 and locking it to the lower surface of the upper fixed plate 422, thereby realizing the automatic installation of the upper template 421 and the test main board 423. During the process of automatically disassembling the upper template 421 and the test main board 423, first, the linear motion module 43 drives the lower module 44 to move to the bottom of the upper template 421 so as to receive the upper template 421; then, the locking mechanism 45 unlocks the upper template 421, and the separation mechanism 46 pushes the upper template 421 to move downward, so that the upper template 421 is separated from the upper fixed plate 422 and falls onto the lower module 44; finally, the linear motion module 43 drives the lower module 44 to move so as to transport the upper template 421 and the test main board 423 from under the upper fixed plate 422 to outside the upper fixed plate 422. In the program burning test machine of the present embodiment, a plurality of PCB board test modules 4 are densely distributed on the positioning platform 51, and it is difficult to manually replace the upper template 421 and the test main board 423. Moreover, the PCB board test equipment of the present embodiment relatively more frequently replaces the test main board 423 and the upper template 421, and each replacement involves a plurality of PCB board test modules 4. In the present embodiment, the aforementioned two locking mechanisms 45 and two separating mechanisms 46 automatically lock the upper template 421 and automatically separate the upper template 421, and transport the upper template 421 and the test main board 423 through the linear motion module 43, 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 locking mechanism 45 and the separating mechanism 46.

[0069] Alternatively, if Figures 7 to 9As shown, the locking mechanism 45 includes a swing rod 451, a hinge seat 452 and a traction member 453. The hinge seat 452 is fixed to the edge of the upper fixed plate 422. The middle part of the swing rod 451 is hinged to the hinge seat 452. The first end of the swing rod 451 extends to the middle of the upper fixed plate 422. The second end of the swing rod 451 extends downward and bends to the lower surface of the upper template 421. The traction member 453 is fixed to the upper fixed plate 422 and connected to the first end of the swing rod 451 and pulls the first end of the swing rod 451 to swing upward or downward. In this embodiment, the traction member 453 is connected to the first end of the swing rod 451 and pulls the first end of the swing rod 451 to swing upward or downward. When the first end of the swing rod 451 swings, it drives the second end of the swing rod 451 to swing around the hinge point between the middle part of the swing rod 451 and the hinge seat 452. Since the second end of the swing rod 451 first extends downward and then bends toward the lower surface of the upper template 421 and the hinge seat 452 is fixed to the edge of the upper fixed plate 422, the end of the second end of the swing rod 451 and the abutment position of the upper template 421 are located below the hinge seat 452 and close to the middle of the upper template 421. During use, when the traction member 453 pulls the first end of the swing rod 451 to swing upward, the second end of the swing rod 451 swings downward, so that the end of the second end of the swing rod 451 moves toward the inner side of the upper template 421 and upward, and the end of the second end of the swing rod 451 pushes the upper template 421 to move upward, thereby quickly locking the upper template 421 to the lower surface of the upper fixed plate 422; when the traction member 453 pulls the first end of the swing rod 451 to swing downward, the second end of the swing rod 451 swings upward, so that the end of the second end of the swing rod 451 moves toward the outer side of the upper template 421 and downward, and the end of the second end of the swing rod 451 releases the upper template 421, thereby facilitating the separation of the upper template 421 from the upper fixed plate 422. In this embodiment, through the cooperation of the traction member 453 and the swing rod 451, the upper template 421 can be quickly locked and the locking state between the upper template 421 and the upper fixed plate 422 can be quickly released, which greatly speeds up the disassembly and replacement speed of the upper template 421 and the test main board 423 located between the upper template 421 and the upper fixed plate 422, thereby improving production efficiency.

[0070] Alternatively, if Figure 7As shown, the number of the hinged seats 452 and the number of the swinging rods 451 are both two, and the two hinged seats 452 are arranged side by side. The locking mechanism 45 also includes a hinged rod 454 and a connecting rod 455. The two ends of the hinged rod 454 are respectively penetrated on the two hinged seats 452, and the two ends of the hinged rod 454 are respectively hinged to the middle of the two swinging rods 451, the two ends of the connecting rod 455 are respectively connected to the first ends of the two swinging rods 451, and the traction member 453 is connected to the middle of the connecting rod 455. When a single swinging rod 451 locks the upper template 421, there is a problem that the swinging rod 451 cannot stably support the upper template 421. In this embodiment, by providing two swinging rods 451, and driving the two swinging rods 451 to swing at the same time through the connecting rod 455, the second ends of the two swinging rods 451 can synchronously lock the upper template 421 or synchronously release the locking of the upper template 421, and the second ends of the two swinging rods 451 can stably support the upper template 421.

[0071] Further, in this embodiment, the traction member 453 is a power element or elastic element capable of pulling the first end of the swing rod 451 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 453 is fixed on the upper fixed plate 422, and the upper end of the traction member 453 is connected to the first end of the swing rod 451, so as to pull the first end of the swing rod 451 to swing.

[0072] In this embodiment, Figure 7 As shown, the locking mechanism 45 also includes a first fixed seat 456. Preferably, the traction member 453 is a second cylinder, which is fixed on the first fixed seat 456 and located between the first ends of the two swing rods 451. The push rod of the second cylinder extends downward and is connected to the middle of the connecting rod 455. The push rod of the second 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 421 and the test main board 423. In addition, in the related art, in order to accurately locate the position between the upper fixed plate 422 and the upper template 421, the upper fixed plate 422 and the upper template 421 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 421 to the lower surface of the upper fixed plate 422, and the second cylinder can apply a large force to the swing rod 451, so that the second end of the swing rod 451 can exert a large force to support and push the upper template 421 upward to lock the upper template 421.

[0073] Alternatively, if Fig. 9As shown, elastic members 457 are provided on both sides of the first fixed seat 456, and the upper ends of the two elastic members 457 are respectively connected to the two sides of the first fixed seat 456, and the lower ends of the two elastic members 457 are respectively connected to the first ends of the two swing rods 451. In this embodiment, the two ends of the elastic member 457 are respectively connected to the corresponding sides of the first fixed seat 456 and the first ends of the corresponding swing rods 451, and the elastic member 457 can continuously apply a force to swing the first end of the swing rod 451 upward, so that the second end of the swing rod 451 can continuously support the upper template 421, so that when the traction member 453 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 421, so as to prevent the upper template 421 from detaching from the lower surface of the upper fixed plate 422 and causing the upper template 421 and the test main board 423 to break.

[0074] Furthermore, both sides of the first fixing seat 456 are provided with fixing portions 4563 extending from the upper ends of the corresponding swing rods 451 , and the upper ends of the two elastic members 457 are connected to the two fixing portions 4563 respectively.

[0075] In this embodiment, the elastic member 457 is a tension spring or an elastic rubber band, and a tension spring is preferred in this embodiment.

[0076] Alternatively, if Figure 7 , Fig. 9 As shown, the first fixing seat 456 includes a connecting plate 4561 and a third mounting plate 4562 for fixing the second cylinder, the lower end of the connecting plate 4561 is fixedly connected to the lower end of the upper fixing plate 422, the upper end of the connecting plate 4561 extends upward to a position higher than the first ends of the two swing rods 451, the third mounting plate 4562 is fixed to the upper end of the connecting plate 4561, and the two fixing portions 4563 are respectively arranged on both sides of the third mounting plate 4562. In this embodiment, the connecting plate 4561 extends upward so that the height of the third mounting plate 4562 is higher than the height of the first ends of the two swing rods 451, and when the two ends of the elastic member 457 are respectively connected to the fixing portion 4563 and the first end of the swing rod 451, the elastic member 457 can provide a pulling force that continuously acts on the first end of the swing rod 451.

[0077] Alternatively, if Figure 8 As shown in the figure, the lower end of the push rod of the second cylinder is provided with a hinge 458, the upper end of the hinge 458 is hinged to the lower end of the push rod of the second cylinder, and the lower end of the hinge 458 is connected to the connecting rod 455. Since the first end of the swing rod 451 is swinging, the motion trajectory of the connecting rod 455 is arc-shaped, while the motion trajectory of the push rod of the second cylinder is a straight line, so there will be motion interference between the push rod of the second cylinder and the connecting rod 455. In this embodiment, by providing the hinge 458 at the lower end of the push rod of the second cylinder, the motion interference between the push rod of the second cylinder and the connecting rod 455 is avoided.

[0078] Alternatively, if Figure 7 As shown in FIG. 8 , the separation mechanism 46 includes a second fixed seat 461 and a first cylinder 462. The second fixed seat 461 is fixed on the upper fixed plate 422, and the first cylinder 462 is fixed on the second fixed seat 461. The push rod of the first cylinder 462 extends downward and passes through the upper fixed plate 422 and abuts against the upper template 421. In the separation mechanism 46 of this embodiment, the push rod of the first cylinder 462 abuts against the upper template 421, thereby pushing the upper template 421 to move downward, so that the upper template 421 is separated from the upper fixed plate 422, and the upper template 421 is unlocked.

[0079] Optionally, a connection base 424 electrically connected to a test card (not shown) is provided on the upper fixing plate 422, and a plurality of elastic contacts 425 extending downward and abutting against the test main board 423 are provided on the connection base 424. In this embodiment, the test card is connected to the test main board 423 via the elastic contacts 425 in the connection base 424. When the separation mechanism 46 separates the upper template 421, there is no need to remove the test card. As the upper template 421 moves downward, the elastic contacts 425 separate from the test main board 423, thereby separating the test card from the test main board 423, and avoiding manual insertion and removal of the test card when the test card is directly plugged into the test main board 423.

[0080] In this embodiment, the push rod of the first cylinder 462 extends downward and passes through the upper fixed plate 422 and abuts against the upper template 421. The push rod of the first cylinder 462 may be indirectly abutted against the upper template 421 through the test main board 423, or the test main board 423 may be provided with a hole to avoid air, so that the push rod of the first cylinder 462 directly abuts against the upper template 421 through the hole to avoid air.

[0081] Furthermore, the upper surface of the test main board 423 is provided with static contacts 4231 corresponding to and abutting against each elastic contact 425 .

[0082] The test card of this embodiment stores burning software and testing software. The burning software burns the program to the PCB board, and the testing software tests the PCB board. Different PCB boards have corresponding test cards.

[0083] Alternatively, if Figure 8 , Fig. 9As shown, the lower surface of the upper mold plate 421 is provided with a replacement positioning pin 4211 extending downward and inserted into the lower mold assembly 44 and a limit pin 4212 extending downward and abutting against the lower mold assembly 44 , and the length of the limit pin 4212 is smaller than the replacement positioning pin 4211 . In the process of automatically installing the test main board 423 and the upper template 421, the test main board 423 is first fixed to the upper surface of the upper template 421, and the upper template 421 is then placed on the lower module 44, and the replacement positioning pin 4211 is matched and connected with the lower module 44, and the limit pin 4212 abuts against the lower module 44, so that the upper template 421 and the lower module 44 maintain a distance, as shown in the figure; then, the lower module 44 is driven by the linear motion module 43 to move to the bottom of the upper fixed plate 422, and the test main board 423 and the upper template 421 are also brought to the bottom of the upper fixed plate 422; then, the two locking mechanisms 45 start working, and the two traction members 453 pull the first ends of the two swing rods 451 to swing upward, and the second ends of the two swing rods 451 extend into the gap between the upper template 421 and the lower module 44, and the upper template 421 is connected to the test main board 423 and locked together, thereby realizing the automatic installation of the upper template 421 and the test main board 423, as shown in the figure. In this embodiment, the upper template 421 and the test main board 423 are transported by the linear motion module 43, and the upper template 421 and the test main board 423 are transported to the bottom of the upper fixed plate 422, and by setting replacement positioning pins 4211 and limit pins 4212 on the lower surface of the upper template 421, a gap is created between the upper template 421 and the lower module 44, so that the second end of the swing rod 451 can extend into the gap between the upper template 421 and the lower module 44, thereby realizing automatic installation of the upper template 421 and the test main board 423.

[0084] During the process of automatically disassembling the upper template 421 and the test main board 423, first, the linear motion module 43 drives the lower module 44 to move to the bottom of the upper template 421 so as to receive the upper template 421; then, the traction member 453 in the locking mechanism 45 pulls the first end of the swing rod 451 to swing downward, so that the second end of the swing rod 451 swings outward and detaches from the upper template 421; then, the separation mechanism 46 starts working, and the push rod of the first cylinder 462 pushes the upper template 421 to move downward, so that the upper template 421 is separated from the upper fixed plate 422 and falls onto the lower module 44; finally, the linear motion module 43 drives the lower module 44 to move, so as to transport the upper template 421 and the test main board 423 from under the upper fixed plate 422 to outside the upper fixed plate 422.

[0085] Alternatively, if Figure 7As shown, the lower die set 44 includes a lower fixed plate 442 disposed on the linear motion die set 43 and a lower template 441 disposed on the upper surface of the lower fixed plate 442. The lower fixed plate 442 or / and the lower template 441 are provided with a pin hole (not shown in the figure) that matches the replacement positioning pin 4211. In this embodiment, the pin hole that matches the replacement positioning pin 4211 can be provided on the lower fixed plate 442 or the lower template 441. When the pin hole that matches the replacement positioning pin 4211 is provided on the lower template 441, the lower template 441 is installed before replacing the upper template 421 and the test main board 423; when the pin hole that matches the replacement positioning pin 4211 is provided on the lower fixed plate 442, the upper template 421 can be directly placed on the lower fixed plate 442 without installing the lower template 441 before replacing the upper template 421 and the test main board 423. Pin holes matching the replacement positioning pins 4211 may also be provided on the lower fixing plate 442 and the lower template 441 at the same time, so that the upper template 421 and the test main board 423 can be replaced regardless of whether the lower template 441 is installed.

[0086] In the PCB board test module of this embodiment, when testing the main board 423, the lifting mechanism 41 drives the upper template 421 and the test main board 423 to rise and fall to adjust the height of the upper template 421 and the test main board 423, so that the test main board 423 can be electrically connected to the PCB board placed on the lower template 441, thereby testing the PCB board. When disassembling the upper template 421 and the test main board 423, the lifting mechanism 41 adjusts the height of the upper fixed plate 422 so that when the first cylinder 462 separates the upper template 421 and the test main board 423, the upper template 421 and the test main board 423 can fall onto the lower module 44 with a smaller height difference, or the upper template 421 and the test main board 423 can just fall onto the lower module 44, thereby reducing or avoiding the vibration when disassembling the upper template 421 and the test main board 423; when installing the upper template 421 and the test main board 423, the lifting mechanism 41 adjusts the height of the upper fixed plate 422 so that the second end of the swing rod 451 can be aligned with the gap between the upper template 421 and the lower module 44, thereby extending into the gap between the upper template 421 and the lower module 44.

[0087] Specifically, Figure 8 , Fig. 9As shown, the lifting mechanism 41 includes a plurality of vertically parallel guide posts 411, a top plate 412 disposed on the upper end of each guide post 411, and a lifting cylinder 413 fixed on the top plate 412. The upper die set 42 includes an upper fixed plate 422, an upper die plate 421, and a test main board 423. The upper die plate 421 is disposed on the lower surface of the upper fixed plate 422. The test main board 423 is detachably fixed to the upper surface of the upper die plate 421 and is used to test the PCB board. The upper fixed plate 422 is provided with the aforementioned locking mechanism 45 and the separation mechanism 46 on both sides. The upper die plate 421 is locked to the lower surface of the upper fixed plate 422 by the aforementioned locking mechanism 45. The upper fixed plate 422 is sleeved on each guide post 411 through a linear bearing. The output end of the lifting cylinder 413 is connected to the upper fixed plate 422 to drive the upper fixed plate 422 to perform lifting motion along each guide post 411.

[0088] In this embodiment, the upper module 42 is connected to the PCB board, specifically, a test pin extending downward and passing through the upper template 421 is connected to the test mainboard 423, and the test mainboard 423 is connected to the PCB board through the test pin, so as to perform program burning and testing on the PCB board.

[0089] 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. A program burning test machine, comprising a working platform, wherein two ends of the working platform are respectively provided with a loading area and a unloading area, characterized in that: The work platform is provided with two groups of work groups arranged side by side and facing each other, each of the work groups includes a gantry, a transport mechanism arranged on the crossbeam of the gantry and moving along the crossbeam of the gantry, a plurality of groups of PCB board test modules arranged side by side below the gantry, and a center positioning mechanism arranged in the loading area, the two gantries are arranged side by side between the loading area and the unloading area, and both ends of the crossbeams of the two gantries are respectively facing the two ends of the work platform; Each of the PCB board test modules comprises a lifting mechanism, an upper module, a linear motion module and a lower module, wherein the upper module is arranged on the corresponding lifting mechanism and driven by the lifting mechanism to perform lifting motion, the first end of the linear motion module is located below the upper module, the second end of each of the linear motion modules extends to the side of the upper module, and the second end of each of the linear motion modules of each operating group and the corresponding center positioning mechanism are both located on the same straight line parallel to the crossbeam, and the lower module is fixedly mounted on the driving end of the linear motion module; The upper mold assembly includes an upper fixed plate, an upper mold plate arranged on the lower surface of the upper fixed plate, and a test main board detachably arranged on the upper surface of the upper mold plate, and opposite sides of the upper fixed plate are provided with a locking mechanism for locking the upper mold plate to the lower surface of the upper fixed plate and a separation mechanism for separating the upper mold plate from the lower surface of the upper fixed plate; The locking mechanism comprises a swing rod, a hinge seat, a first fixed 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 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 downward; the traction member is a second cylinder, the second cylinder is fixed to the first fixed seat and is located between the first ends of the two swing rods, elastic members are provided on both sides of the first fixed seat, 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; The separation mechanism includes a second fixing seat and a first cylinder, wherein the second fixing seat is fixed on the upper fixing plate, the first cylinder is fixed on the second fixing seat, and a push rod of the first cylinder extends downward and passes through the upper fixing plate and abuts against the upper template.

2. The program burning tester according to claim 1, characterized in that: The transport mechanism includes a sliding assembly, a lifting assembly and a grabbing assembly arranged on the lifting assembly and used to grab the PCB board. The sliding assembly is arranged on the beam and used to drive the lifting assembly to move along the beam. The lifting assembly is fixedly installed on the driving end of the sliding assembly and used to drive the grabbing assembly to perform lifting and lowering movements.

3. The program burning tester according to claim 1, characterized in that: The center positioning mechanism includes a positioning platform, an X-axis positioning mechanism, a Y-axis positioning mechanism and a first mounting plate arranged below the positioning platform; The X-axis positioning mechanism includes an X-axis driving assembly and two X-axis sliding assemblies arranged opposite to each other, each of the X-axis sliding assemblies includes a first guide rail fixed to the upper surface of the first mounting plate and extending along the X-axis direction, a first slider slidably connected to the first guide rail, and a first stopper fixed to the first slider and extending upward to the positioning platform and protruding from the positioning platform, the X-axis driving assembly is connected to the two first sliders and drives the two first sliders to move synchronously relative to or away from each other; The Y-axis positioning mechanism includes a Y-axis driving assembly and two oppositely arranged Y-axis sliding assemblies, each of the Y-axis sliding assemblies includes a second guide rail fixed to the lower surface of the first mounting plate and extending along the Y-axis direction, a second slider slidably connected to the second guide rail, and a second stopper fixed to the second slider and extending upward to the positioning platform and protruding from the positioning platform. The Y-axis driving assembly is connected to the two second sliders and drives the two second sliders to move synchronously relative to or away from each other.

4. The program burning tester according to claim 3, characterized in that: The X-axis driving assembly includes a first driving wheel, a first driven wheel, a first synchronous belt and a first motor. The first driving wheel and the first driven wheel are arranged between the two first guide rails along the X-axis direction, and the first driving wheel and the first driven wheel are both rotatably set on the first mounting plate. The first synchronous belt is wound around the first driving wheel and the first driven wheel. Both side edges of the first synchronous belt are fixedly connected to the two first sliders respectively. The first motor is fixed to the first mounting plate and the output shaft of the first motor is connected to the first driving wheel.

5. The program burning tester according to claim 3, characterized in that: The Y-axis driving assembly includes a second driving wheel, a second driven wheel, a second synchronous belt and a second motor. The second driving wheel and the second driven wheel are arranged between the two second guide rails along the Y-axis direction, and the second driving wheel and the second driven wheel are both rotatably set on the first mounting plate. The second synchronous belt is wound around the second driving wheel and the second driven wheel. Both side edges of the second synchronous belt are fixedly connected to the two second sliders respectively. The second motor is fixed to the first mounting plate and the output shaft of the second motor is connected to the second driving wheel.

6. The program burning test machine according to any one of claims 1 to 5, characterized in that: The upper fixing plate is provided with a connection seat electrically connected to the test card, and the connection seat is provided with a plurality of elastic contacts extending downward and abutting against the test main board.

7. The program burning test machine according to any one of claims 1 to 5, characterized in that: The lower surface of the upper mold plate is provided with a replacement positioning pin extending downward and inserted into the lower mold assembly and a limit pin extending downward and abutting against the lower mold assembly, and the length of the limit pin is smaller than the replacement positioning pin.

Images