Carrying mechanism and PCB (Printed Circuit Board) test equipment

Abstract

The utility model belongs to the technical field of PCB testing, and relates to a carrying mechanism and PCB testing equipment. The carrying mechanism comprises a tray, a clamping driving assembly and two clamping assemblies, the two clamping assemblies are arranged on the two opposite sides of the tray in the first direction correspondingly, and the clamping driving assembly is used for driving the two clamping assemblies to be close to or away from each other in the first direction; the clamping assembly comprises a clamping bottom plate, a meshing piece and a clamping part, the meshing piece is installed on the clamping bottom plate in the second direction, the clamping part comprises a clamping unit and a meshing unit, the clamping unit is slidably connected to the clamping bottom plate in the second direction and used for clamping materials in the first direction, and the meshing unit is connected with the clamping unit; the meshing unit has a meshing state and an unlocking state; in the meshing state, the meshing unit is meshed with the meshing piece; in the unlocking state, the meshing unit is disengaged from the meshing piece. The loading mechanism can adapt to different materials and is high in applicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB board testing, in particular to a loading mechanism and PCB board testing equipment. Background Art

[0002] The loading mechanism for PCB board testing is used to load the PCB board during the PCB board testing.

[0003] However, the existing loading mechanism for PCB board testing can only load and clamp PCB boards of a single size, and has poor versatility. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide a loading mechanism and a PCB board testing device in view of the technical problem that the existing loading mechanism has poor versatility.

[0005] In order to solve the above technical problems, on the one hand, an embodiment of the utility model provides a loading mechanism, comprising a tray, a clamping drive assembly and two clamping assemblies, wherein the two clamping assemblies are respectively arranged on opposite sides of the tray along a first direction, and the clamping drive assembly is used to drive the two clamping assemblies to move closer to or away from each other along the first direction;

[0006] The clamping assembly comprises a clamping base plate, an engaging member and a clamping component, wherein the engaging member is mounted on the clamping base plate along the second direction, the clamping component comprises a clamping unit and an engaging unit, the clamping unit is slidably connected to the clamping base plate along the second direction, the clamping unit is used to clamp the material along the first direction, the engaging unit is connected to the clamping unit, and the engaging unit has an engaged state and an unlocked state;

[0007] In the engaged state, the engagement unit is engaged with the engagement member; in the unlocked state, the engagement unit is disengaged from the engagement member.

[0008] According to the object-carrying mechanism of the embodiment of the utility model, a clamping assembly is respectively arranged on opposite sides of the tray, and the two clamping assemblies are driven to approach or move away from each other along the first direction by the clamping driving assembly, so as to adjust the width between the two clamping assemblies along the first direction to adapt to materials of different widths. At the same time, by adjusting the state of the meshing unit of the clamping component, the clamping unit can slide relative to the clamping base plate along the second direction when the meshing unit is in the unlocked state, thereby adjusting the position of the clamping unit along the second direction to adapt to materials of different lengths. The object-carrying mechanism can adapt to materials of different lengths and widths, and has high applicability.

[0009] Optionally, the engagement unit is capable of elastic deformation to switch back and forth between the engagement state and the unlocking state.

[0010] Optionally, the engagement unit comprises a connecting plate, a pressing plate, an engagement fitting and a spring plate, the connecting plate is connected to the clamping unit, the spring plate is connected between the connecting plate and the pressing plate, the engagement fitting is connected to the pressing plate, and the engagement fitting can engage with the engagement fitting;

[0011] The spring plate can be elastically deformed when the pressing plate is pressed, so that the engaging fitting is away from the engaging fitting.

[0012] Optionally, an engaging portion is disposed on the outer side of the engaging piece, and an engaging fitting portion is disposed on the inner side of the engaging fitting piece, and the engaging fitting portion can engage with the engaging portion.

[0013] Optionally, the engagement member is a first rack and the engagement mating member is a second rack.

[0014] Optionally, the clamping unit includes a clamping cylinder and a clamping claw, wherein the clamping cylinder is mounted on the clamping base plate, and the clamping cylinder is used to drive the clamping claw to open or close, and a plurality of protrusions are formed on the inner side of the clamping claw.

[0015] Optionally, each of the clamping assemblies is provided with a plurality of the clamping parts, and the plurality of the clamping parts of each of the clamping assemblies are arranged in sequence along the second direction.

[0016] Optionally, the clamping drive assembly includes a drive motor and a screw, the screw includes a first thread segment and a second thread segment, the thread direction of the first thread segment is opposite to the thread direction of the second thread segment, the first thread segment is threadedly connected to the clamping base plate of one of the clamping assemblies, and the second thread segment is threadedly connected to the clamping base plate of the other clamping assembly;

[0017] The driving motor is used to drive the screw to rotate.

[0018] Optionally, the clamping drive assembly includes a first drive motor, a first screw rod, a second screw rod and a first transmission structure, the axis of the first screw rod and the axis of the second screw rod both extend along the first direction, and the first drive motor is used to drive the first screw rod and the second screw rod to rotate synchronously and in the same direction through the first transmission structure;

[0019] The first screw comprises a first thread segment and a second thread segment, and the thread direction of the first thread segment is opposite to the thread direction of the second thread segment; the second screw comprises a third thread segment and a fourth thread segment, and the thread direction of the third thread segment is opposite to the thread direction of the fourth thread segment;

[0020] The thread direction of the first thread segment is consistent with the thread direction of the third thread segment, and the thread direction of the second thread segment is consistent with the thread direction of the fourth thread segment;

[0021] The first thread segment and the third thread segment are respectively threadedly connected to the clamping base plate of one of the clamping assemblies, and the second thread segment and the fourth thread segment are respectively threadedly connected to the clamping base plate of the other clamping assembly.

[0022] Optionally, the first transmission structure includes a first belt, a first main pulley and a first secondary pulley, the first main pulley and the first secondary pulley are respectively rotatably connected to the tray, the first belt is wound around the first main pulley and the first secondary pulley, and the first driving motor is used to drive the first main pulley to rotate;

[0023] The first thread segment is coaxially connected to the first primary pulley, and the third thread segment is coaxially connected to the first secondary pulley.

[0024] Optionally, the clamping drive assembly further includes a second transmission structure, the second transmission structure includes a second belt, a second main pulley and a second secondary pulley, the second main pulley and the second secondary pulley are respectively rotatably connected to the tray, and the second belt is wound around the second main pulley and the second secondary pulley;

[0025] The output shaft of the first driving motor is coaxially connected to the second main pulley, and the second secondary pulley is coaxially connected to the first main pulley.

[0026] Optionally, the clamping drive assembly includes a second drive motor, a first screw rod, a second screw rod and a third transmission structure, the axis of the first screw rod and the axis of the second screw rod both extend along the first direction, and the second drive motor is used to drive the first screw rod and the second screw rod to rotate synchronously and in opposite directions through the third transmission structure;

[0027] The first screw comprises a first thread segment and a second thread segment, and the thread direction of the first thread segment is opposite to the thread direction of the second thread segment; the second screw comprises a third thread segment and a fourth thread segment, and the thread direction of the third thread segment is opposite to the thread direction of the fourth thread segment;

[0028] The thread direction of the first thread segment is opposite to that of the third thread segment, and the thread direction of the second thread segment is opposite to that of the fourth thread segment;

[0029] The first thread segment and the third thread segment are respectively threadedly connected to the clamping base plate of one of the clamping assemblies, and the second thread segment and the fourth thread segment are respectively threadedly connected to the clamping base plate of the other clamping assembly.

[0030] Optionally, the third transmission structure includes a third belt, a third main pulley, a third secondary pulley, a fourth belt, a fourth main pulley, a fourth secondary pulley, a first gear and a second gear, the third main pulley, the third secondary pulley, the fourth main pulley and the fourth secondary pulley are respectively rotatably connected to the tray, the third belt is wound around the third main pulley and the third secondary pulley, and the fourth belt is wound around the fourth main pulley and the fourth secondary pulley;

[0031] The first thread segment is coaxially connected to the third primary pulley, and the third thread segment is coaxially connected to the fourth secondary pulley;

[0032] The first gear is coaxially connected to the third secondary pulley, and the second gear is coaxially connected to the fourth primary pulley;

[0033] The first gear is meshed with the second gear, and the rotation speed of the first gear is consistent with the rotation speed of the second gear; the second driving motor is used to drive the third main pulley to rotate.

[0034] Optionally, the clamping base plate comprises a base plate body, a first connecting block and a second connecting block, the engaging member is mounted on the base plate body along the second direction, and the clamping unit is slidably connected to the base plate body along the second direction;

[0035] The first connecting block and the second connecting block are respectively connected to the bottom plate body;

[0036] The first thread segment is threadedly connected to the first connection block of one of the clamping assemblies, and the third thread segment is threadedly connected to the second connection block of one of the clamping assemblies;

[0037] The second threaded section is threadedly connected to the first connection block of another clamping assembly, and the fourth threaded section is threadedly connected to the second connection block of another clamping assembly.

[0038] Optionally, the tray is a hollow frame structure, and the two clamping assemblies are arranged relatively on the inner side of the frame structure along the first direction.

[0039] Optionally, the object carrying mechanism further comprises a bracket, a guide rail and a slider, wherein the guide rail is arranged on the bracket along the second direction, the slider is slidably connected to the guide rail, and a side of the slider away from the guide rail is connected to the tray, so that the tray is slidably connected to the bracket along the second direction;

[0040] The object-carrying mechanism further comprises a tray driving assembly, wherein the tray driving assembly is used to drive the tray to slide relative to the bracket along the second direction;

[0041] The tray driving assembly comprises a linear motor, which is mounted on the bracket and has an output end connected to the tray.

[0042] On the other hand, the embodiment of the utility model provides a PCB board testing device, including a machine platform, a loading device, a testing device, a unloading device and a material conveying device, wherein the loading device, the testing device and the unloading device are sequentially arranged on the machine platform along the conveying direction of the material, the loading device is used to provide the material, the testing device is used to test the material, and the unloading device is used to unload the material after the test is completed;

[0043] The material conveying device is arranged on the machine platform, and is used to convey the material provided by the loading device to the testing device, and is also used to convey the tested material to the unloading device; the material conveying device includes the above-mentioned loading mechanism;

[0044] The material is a PCB board.

[0045] According to the loading mechanism of the PCB board testing equipment of the embodiment of the utility model, the loading device, the testing device and the loading device are sequentially arranged on the machine platform along the conveying direction of the material, wherein the loading mechanism of the material conveying device is provided with a clamping assembly on opposite sides of the tray, and the two clamping assemblies are driven to approach or move away from each other along the first direction by the clamping driving assembly, so as to adjust the width between the two clamping assemblies along the first direction to adapt to materials of different widths. At the same time, by adjusting the state of the meshing unit of the clamping component, the clamping unit can slide relative to the clamping base plate along the second direction when the meshing unit is in the unlocked state, thereby adjusting the position of the clamping unit along the second direction to adapt to materials of different lengths. The loading mechanism can adapt to materials of different lengths and widths, and has high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of a loading mechanism provided by an embodiment of the utility model;

[0047] Figure 2 yes Figure 1 An enlarged schematic diagram of the middle tray;

[0048] Figure 3 yes Figure 2 Schematic diagram of the clamping assembly;

[0049] Figure 4 yes Figure 3 An enlarged schematic diagram of the middle clamping part;

[0050] Figure 5 It is a schematic diagram of a PCB board testing device provided by an embodiment of the utility model;

[0051] Figure 6 yes Figure 5 Schematic diagram of another angle of the PCB board testing equipment.

[0052] The reference numerals in the specification are as follows:

[0053] 100. Carrying mechanism;

[0054] 1. Pallet;

[0055] 2. Clamping drive assembly; 21. First drive motor; 22. First screw rod; 23. Second screw rod; 24. First transmission structure; 241. First belt; 242. First main pulley; 243. First secondary pulley; 25. Second transmission structure; 251. Second belt; 252. Second main pulley; 253. Second secondary pulley;

[0056] 3. Clamping assembly; 31. Clamping base plate; 311. Base plate body; 312. First connecting block; 313. Second connecting block; 32. Engaging member; 321. Engaging portion; 33. Clamping member; 331. Clamping unit; 3311. Clamping cylinder; 3312. Clamping claw; 33121. Protrusion; 332. Engaging unit; 3321. Connecting plate; 3322. Pressing plate; 3323. Engaging mating member; 33231. Engaging mating portion; 3324. Spring plate;

[0057] 4. Bracket;

[0058] 5. Tray drive assembly; 51. Linear motor;

[0059] 6. Guide rails;

[0060] 7. Slider;

[0061] 200, material; 300, machine; 400, loading device; 500, testing device; 600, unloading device; 700, material conveying device;

[0062] x, first direction; y, second direction. DETAILED DESCRIPTION

[0063] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0064] like Figures 1 to 4 As shown, the loading mechanism 100 provided by the embodiment of the utility model includes a tray 1, a clamping drive assembly 2 and two clamping assemblies 3, the two clamping assemblies 3 are respectively arranged on opposite sides of the tray 1 along a first direction x, and the clamping drive assembly 2 is used to drive the two clamping assemblies 3 to move closer to or away from each other along the first direction x.

[0065] The clamping assembly 3 includes a clamping base plate 31, an engaging member 32 and a clamping component 33. The engaging member 32 is installed on the clamping base plate 31 along the second direction y. The clamping component 33 includes a clamping unit 331 and an engaging unit 332. The clamping unit 331 is slidably connected to the clamping base plate 31 along the second direction y. The clamping unit 331 is used to clamp the material 200 along the first direction x. The engaging unit 332 is connected to the clamping unit 331. The engaging unit 332 has an engaged state and an unlocked state.

[0066] In the engaged state, the engagement unit 332 is engaged with the engagement member 32. In the unlocked state, the engagement unit 332 is disengaged from the engagement member 32.

[0067] The object-carrying mechanism 100 provided by the embodiment of the utility model is provided with a clamping assembly 3 on opposite sides of the tray 1, and the clamping driving assembly 2 drives the two clamping assemblies 3 to approach or move away from each other along the first direction x, so as to adjust the width between the two clamping assemblies 3 along the first direction x to adapt to materials 200 of different widths. At the same time, by adjusting the state of the meshing unit 332 of the clamping component 33, when the meshing unit 332 is in the unlocked state, the clamping unit 331 can slide relative to the clamping bottom plate 31 along the second direction y, thereby adjusting the position of the clamping unit 331 along the second direction y to adapt to materials 200 of different lengths. The object-carrying mechanism 100 can adapt to materials 200 of different lengths and widths, and has high applicability.

[0068] Specifically, when the engaging unit 332 of the clamping component 33 is in an engaged state, the engaging unit 332 is engaged with the engaging member 32, and the clamping unit 331 is fixed relative to the clamping base plate 31; when the engaging unit 332 of the clamping component 33 is in an unlocked state, the engaging unit 332 is released from the engaging member 32, so that the clamping unit 331 can slide relative to the clamping base plate 31 along the second direction y, thereby adjusting the position of the clamping unit 331 along the second direction y to adapt to materials 200 of different lengths.

[0069] In one embodiment, if Figure 3 and Figure 4 As shown, the engagement unit 332 can undergo elastic deformation to switch back and forth between the engagement state and the unlocking state, thereby achieving temporary fixation of the clamping unit 331 or sliding relative to the clamping base plate 31 along the second direction y.

[0070] In one embodiment, if Figure 4 As shown, the engaging unit 332 includes a connecting plate 3321, a pressing plate 3322, an engaging fitting 3323 and a spring plate 3324. The connecting plate 3321 is connected to the clamping unit 331. The spring plate 3324 is connected between the connecting plate 3321 and the pressing plate 3322. The engaging fitting 3323 is connected to the pressing plate 3322, and the engaging fitting 3323 can engage with the engaging member 32. The spring plate 3324 can undergo elastic deformation when the pressing plate 3322 is pressed, so that the engaging fitting 3323 is away from the engaging member 32.

[0071] In the initial shape, the pressing plate 3322 presses the engaging member 3323 toward the engaging member 32 under the elastic force of the spring plate 3324 , so that the engaging member 3323 engages with the engaging member 32 , and the position of the clamping unit 331 relative to the clamping base plate 31 is fixed.

[0072] When the pressing plate 3322 is pressed, the spring plate 3324 can undergo elastic deformation, so that the engaging member 3323 moves away from the engaging member 32, thereby releasing the engagement between the engaging member 3323 and the engaging member 32, and allowing the clamping unit 331 to slide relative to the clamping base plate 31 along the second direction y, thereby adjusting the position of the clamping unit 331 along the second direction y.

[0073] In one embodiment, if Figure 4 As shown, an engagement portion 321 is provided on the outer side of the engagement piece 32 , and an engagement matching portion 33231 is provided on the inner side of the engagement matching piece 3323 . The engagement matching portion 33231 can engage with the engagement portion 321 to achieve engagement between the engagement piece 32 and the engagement matching piece 3323 .

[0074] It should be noted that the “outer side of the engaging member 32 ” refers to the side of the engaging member 32 facing away from the center of the tray 1 , and the “inner side of the engaging fitting 3323 ” refers to the side of the engaging member 32 facing the center of the tray 1 .

[0075] In one embodiment, if Figure 3 and Figure 4 As shown, the engagement member 32 is a first rack, and the engagement mating member 3323 is a second rack. In the engaged state, the first rack is engaged with the second rack. In the unlocked state, the first rack is disengaged from the second rack.

[0076] In one embodiment, if Figure 4 As shown, the clamping unit 331 includes a clamping cylinder 3311 and a clamping jaw 3312. The clamping cylinder 3311 is installed on the clamping base plate 31. The clamping cylinder 3311 is used to drive the clamping jaw 3312 to open or close. A plurality of protrusions 33121 are formed on the inner side of the clamping jaw 3312 to increase the friction between the material 200, or to clamp the edge of the material 200, thereby improving the stability of clamping the material 200.

[0077] In one embodiment, if Figure 3 As shown, each clamping assembly 3 is provided with a plurality of clamping parts 33, and the plurality of clamping parts 33 of each clamping assembly 3 are sequentially arranged along the second direction y, so as to clamp the material 200 from a plurality of positions along the second direction y, thereby improving the stability of clamping.

[0078] In one embodiment, if Figure 2 As shown, the clamping drive assembly 2 includes a first drive motor 21, a first screw rod 22, a second screw rod 23 and a first transmission structure 24. The axis of the first screw rod 22 and the axis of the second screw rod 23 both extend along the first direction x. The first drive motor 21 is used to drive the first screw rod 22 and the second screw rod 23 to rotate synchronously and in the same direction through the first transmission structure 24.

[0079] The first screw rod 22 includes a first thread segment and a second thread segment, the thread direction of the first thread segment is opposite to that of the second thread segment. The second screw rod 23 includes a third thread segment and a fourth thread segment, the thread direction of the third thread segment is opposite to that of the fourth thread segment.

[0080] The thread direction of the first thread segment is consistent with the thread direction of the third thread segment, and the thread direction of the second thread segment is consistent with the thread direction of the fourth thread segment.

[0081] The first thread segment and the third thread segment are respectively threadedly connected to the clamping base plate 31 of one of the clamping components 3 , and the second thread segment and the fourth thread segment are respectively threadedly connected to the clamping base plate 31 of the other clamping component 3 .

[0082] When the first drive motor 21 drives the first screw rod 22 and the second screw rod 23 to rotate synchronously and in the same direction through the first transmission structure 24, since the thread direction of the first thread segment is consistent with the thread direction of the third thread segment, and the thread direction of the second thread segment is consistent with the thread direction of the fourth thread segment, the clamping base plate 31 of one clamping assembly 3 will move along the first direction x in cooperation with the threads of the first thread segment and the third thread segment, and the clamping base plate 31 of the other clamping assembly 3 will move along the first direction x in cooperation with the threads of the second thread segment and the fourth thread segment. Since the thread direction of the first thread segment is opposite to the thread direction of the second thread segment, and the thread direction of the third thread segment is opposite to the thread direction of the fourth thread segment, the clamping base plates 31 of the two clamping assemblies 3 can be moved closer to or farther from each other.

[0083] In one embodiment, if Figure 2 As shown, the first transmission structure 24 includes a first belt 241, a first main pulley 242 and a first secondary pulley 243. The first main pulley 242 and the first secondary pulley 243 are respectively rotatably connected to the tray 1. The first belt 241 is wound around the first main pulley 242 and the first secondary pulley 243. The first drive motor 21 is used to drive the first main pulley 242 to rotate.

[0084] The first thread segment is coaxially connected to the first primary pulley 242 , and the third thread segment is coaxially connected to the first secondary pulley 243 .

[0085] When the first driving motor 21 drives the first main pulley 242 to rotate, the first belt 241 moves and drives the first secondary pulley 243 to rotate, and the rotation of the first main pulley 242 and the first secondary pulley 243 are in the same reverse direction, thereby realizing the synchronous and same-direction rotation of the first screw rod 22 and the second screw rod 23.

[0086] In one embodiment, if Figure 2 As shown, the clamping drive assembly 2 also includes a second transmission structure 25, which includes a second belt 251, a second main pulley 252 and a second secondary pulley 253. The second main pulley 252 and the second secondary pulley 253 are respectively rotatably connected to the tray 1, and the second belt 251 is wound around the second main pulley 252 and the second secondary pulley 253.

[0087] The output shaft of the first driving motor 21 is coaxially connected to the second main pulley 252 , and the second secondary pulley 253 is coaxially connected to the first main pulley 242 .

[0088] When the first driving motor 21 drives the second main pulley 252 to rotate, the second belt 251 moves and drives the second secondary pulley 253 to rotate, and the second main pulley 252 rotates in the same direction as the second secondary pulley 253. Afterwards, since the second secondary pulley 253 is coaxially connected to the first main pulley 242, the first main pulley 242 can be driven to rotate.

[0089] In other embodiments not shown in the figures, the clamping drive assembly may also include a second drive motor, a first screw rod, a second screw rod and a third transmission structure, the axis of the first screw rod and the axis of the second screw rod both extend along the first direction, and the second drive motor is used to drive the first screw rod and the second screw rod to rotate synchronously and in opposite directions through the third transmission structure.

[0090] The first screw rod comprises a first thread segment and a second thread segment, the thread direction of the first thread segment is opposite to the thread direction of the second thread segment. The second screw rod comprises a third thread segment and a fourth thread segment, the thread direction of the third thread segment is opposite to the thread direction of the fourth thread segment.

[0091] The thread direction of the first thread segment is opposite to the thread direction of the third thread segment, and the thread direction of the second thread segment is opposite to the thread direction of the fourth thread segment.

[0092] The first thread segment and the third thread segment are respectively threadedly connected to the clamping base plate of one of the clamping components, and the second thread segment and the fourth thread segment are respectively threadedly connected to the clamping base plate of the other clamping component.

[0093] When the second drive motor drives the first screw rod and the second screw rod to rotate synchronously and in opposite directions through the third transmission structure, since the thread direction of the first thread segment is opposite to the thread direction of the third thread segment, and the thread direction of the second thread segment is opposite to the thread direction of the fourth thread segment, the clamping base plate of one clamping assembly will move along the first direction x in cooperation with the threads of the first thread segment and the third thread segment, and the clamping base plate of the other clamping assembly will move along the first direction x in cooperation with the threads of the second thread segment and the fourth thread segment. In addition, since the thread direction of the first thread segment is opposite to the thread direction of the second thread segment, and the thread direction of the third thread segment is opposite to the thread direction of the fourth thread segment, the clamping base plates of the two clamping assemblies can be moved closer to or farther from each other.

[0094] Furthermore, the third transmission structure includes a third belt, a third main pulley, a third secondary pulley, a fourth belt, a fourth main pulley, a fourth secondary pulley, a first gear and a second gear. The third main pulley, the third secondary pulley, the fourth main pulley and the fourth secondary pulley are respectively rotatably connected to the tray. The third belt is wound around the third main pulley and the third secondary pulley, and the fourth belt is wound around the fourth main pulley and the fourth secondary pulley.

[0095] The first thread segment is coaxially connected to the third primary pulley, and the third thread segment is coaxially connected to the fourth secondary pulley.

[0096] The first gear is coaxially connected to the third secondary pulley, and the second gear is coaxially connected to the fourth main pulley.

[0097] The first gear is meshed with the second gear, and the rotation speed of the first gear is consistent with the rotation speed of the second gear. The second driving motor is used to drive the third main pulley to rotate.

[0098] When the second drive motor drives the third main pulley to rotate, the third belt moves and drives the third secondary pulley to rotate, thereby driving the first gear and the second gear meshing therewith to rotate, and then the fourth main pulley rotates, and the fourth belt moves and drives the fourth secondary pulley to rotate. In this process, since the first gear meshes with the second gear, the first gear and the second gear will rotate in opposite directions, and then the third secondary pulley and the fourth main pulley will rotate in opposite directions, and finally the first screw rod and the second screw rod will rotate in opposite directions.

[0099] Alternatively, in other embodiments not shown in the figures, the clamping drive assembly may also include a drive motor and a screw, the screw including a first thread segment and a second thread segment, the thread direction of the first thread segment is opposite to the thread direction of the second thread segment, the first thread segment is threadedly connected to the clamping base plate of one of the clamping assemblies, and the second thread segment is threadedly connected to the clamping base plate of the other clamping assembly.

[0100] The driving motor is used to drive the screw rod to rotate. Since the thread direction of the first thread segment is opposite to the thread direction of the second thread segment, the clamping base plates of the two clamping assemblies can be driven to move closer to or farther from each other.

[0101] In one embodiment, if Figure 2 and Figure 3 As shown, the clamping base plate 31 includes a base plate body 311, a first connecting block 312 and a second connecting block 313, the engaging member 32 is installed on the base plate body 311 along the second direction y, and the clamping unit 331 is slidably connected to the base plate body 311 along the second direction y.

[0102] The first connection block 312 and the second connection block 313 are respectively connected to the bottom plate body 311 .

[0103] The first thread segment is threadedly connected to the first connection block 312 of one of the clamping assemblies 3 , and the third thread segment is threadedly connected to the second connection block 313 of one of the clamping assemblies 3 .

[0104] The second threaded section is threadedly connected to the first connecting block 312 of another clamping assembly 3, and the fourth threaded section is threadedly connected to the second connecting block 313 of another clamping assembly 3, thereby realizing the connection between the first screw rod 22, the second screw rod 23 and the clamping base plates 31 of the two clamping assemblies 3.

[0105] In one embodiment, if Figure 2 and Figure 3 As shown, the tray 1 is a hollow frame structure, and the two clamping components 3 are arranged relatively on the inner side of the frame structure along the first direction x.

[0106] In one embodiment, if Figure 1 As shown, the loading mechanism 100 also includes a bracket 4, a guide rail 6 and a slider 7. The guide rail 6 is arranged on the bracket 4 along the second direction y. The slider 7 is slidably connected to the guide rail 6. The side of the slider 7 away from the guide rail 6 is connected to the tray 1, so that the tray 1 is slidably connected to the bracket 4 along the second direction y to adjust the overall position of the tray 1 along the second direction y.

[0107] In one embodiment, if Figure 1 As shown, the object carrying mechanism 100 further includes a tray driving assembly 5, which is used to drive the tray 1 to slide relative to the bracket 4 along the second direction y, so as to adjust the overall position of the tray 1 along the second direction y.

[0108] In one embodiment, if Figure 1 As shown, the tray driving assembly 5 includes a linear motor 51, which is mounted on the bracket 4. The output end of the linear motor 51 is connected to the tray 1 to drive the tray 1 to slide relative to the bracket 4 along the second direction y.

[0109] The working principle of the object carrying mechanism 100 provided in the embodiment of the utility model is as follows:

[0110] The linear motor 51 drives the tray 1 to slide relative to the bracket 4 along the second direction y, so as to adjust the overall position of the tray 1 along the second direction y.

[0111] The first drive motor 21 drives the first screw 22 and the second screw 23 to rotate synchronously and in the same direction through the second transmission structure 25 and the first transmission structure 24, so that the clamping base plates 31 of the two clamping assemblies 3 are close to or away from each other along the first direction x, and the width between the two clamping assemblies 3 is adjusted along the first direction x to adapt to materials 200 of different widths.

[0112] The engaging unit 332 of the clamping assembly 3 is provided with an engaged state and an unlocked state. By adjusting the state of the engaging unit 332 of the clamping component 33, when the engaging unit 332 is in the unlocked state, the clamping unit 331 can slide relative to the clamping base plate 31 along the second direction y, thereby adjusting the position of the clamping unit 331 along the second direction y to adapt to materials 200 of different lengths.

[0113] When the clamping units 331 clamp the material 200 , the clamping drive assembly 2 can cooperate to make each clamping unit 331 move to a position away from the center of the material 200 , thereby flattening the material 200 .

[0114] like Figure 5 and Figure 6 As shown, the PCB board testing equipment provided by the embodiment of the utility model includes a machine 300, a loading device 400, a testing device 500, a unloading device 600 and a material conveying device 700. The loading device 400, the testing device 500 and the unloading device 600 are sequentially arranged on the machine 300 along the conveying direction of the material 200. The loading device 400 is used to provide the material 200, the testing device 500 is used to test the material 200, and the unloading device 600 is used to unload the material 200 after the test is completed.

[0115] The material conveying device 700 is disposed on the machine platform 300 and is used to convey the material 200 provided by the loading device 400 to the testing device 500 and to convey the tested material 200 to the unloading device 600. The material conveying device 700 includes the above-mentioned loading mechanism 100.

[0116] Material 200 is a PCB board.

[0117] The PCB board testing equipment provided by the embodiment of the utility model is provided with a feeding device 400, a testing device 500 and a feeding device 400 arranged on a machine table 300 in sequence along the conveying direction of the material 200, wherein the carrying mechanism 100 of the material conveying device 700 is provided with a clamping assembly 3 on opposite sides of the tray 1, and the two clamping assemblies 3 are driven to approach or move away from each other along the first direction x by the clamping driving assembly 2, so as to adjust the width between the two clamping assemblies 3 along the first direction x to adapt to materials 200 of different widths. At the same time, by adjusting the state of the meshing unit 332 of the clamping component 33, when the meshing unit 332 is in the unlocked state, the clamping unit 331 can slide relative to the clamping bottom plate 31 along the second direction y, thereby adjusting the position of the clamping unit 331 along the second direction y to adapt to materials 200 of different lengths. The carrying mechanism 100 can adapt to materials 200 of different lengths and widths, and has high applicability.

[0118] The above are only preferred embodiments of the present invention and are 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 loading mechanism, characterized in that: It comprises a tray, a clamping drive assembly and two clamping assemblies, wherein the two clamping assemblies are respectively arranged on opposite sides of the tray along a first direction, and the clamping drive assembly is used to drive the two clamping assemblies to move closer to or farther from each other along the first direction; The clamping assembly comprises a clamping base plate, an engaging member and a clamping component, wherein the engaging member is mounted on the clamping base plate along the second direction, the clamping component comprises a clamping unit and an engaging unit, the clamping unit is slidably connected to the clamping base plate along the second direction, the clamping unit is used to clamp the material along the first direction, the engaging unit is connected to the clamping unit, and the engaging unit has an engaged state and an unlocked state; In the engaged state, the engagement unit is engaged with the engagement member; in the unlocked state, the engagement unit is disengaged from the engagement member.

2. The object carrying mechanism according to claim 1, characterized in that: The engagement unit is capable of elastic deformation to switch back and forth between the engagement state and the unlocking state.

3. The object carrying mechanism according to claim 1, characterized in that: The engagement unit includes a connecting plate, a pressing plate, an engagement fitting and a spring plate, wherein the connecting plate is connected to the clamping unit, the spring plate is connected between the connecting plate and the pressing plate, the engagement fitting is connected to the pressing plate, and the engagement fitting can be engaged with the engagement fitting; The spring plate can be elastically deformed when the pressing plate is pressed, so that the engaging fitting is away from the engaging fitting.

4. The object carrying mechanism according to claim 3, characterized in that: An engaging portion is disposed on the outer side of the engaging piece, and an engaging matching portion is disposed on the inner side of the engaging matching piece, and the engaging matching portion can be engaged with the engaging portion.

5. The object carrying mechanism according to claim 3, characterized in that: The meshing member is a first rack, and the meshing mating member is a second rack.

6. The object carrying mechanism according to claim 1, characterized in that: The clamping unit comprises a clamping cylinder and a clamping claw. The clamping cylinder is mounted on the clamping base plate. The clamping cylinder is used to drive the clamping claw to open or close. A plurality of protrusions are formed on the inner side of the clamping claw.

7. The object carrying mechanism according to claim 1, characterized in that: Each of the clamping assemblies is provided with a plurality of the clamping parts, and the plurality of the clamping parts of each of the clamping assemblies are arranged in sequence along the second direction.

8. The object carrying mechanism according to claim 1, characterized in that: The clamping drive assembly includes a driving motor and a screw rod, the screw rod includes a first thread segment and a second thread segment, the thread direction of the first thread segment is opposite to the thread direction of the second thread segment, the first thread segment is threadedly connected to the clamping base plate of one of the clamping assemblies, and the second thread segment is threadedly connected to the clamping base plate of the other clamping assembly; The driving motor is used to drive the screw to rotate.

9. The object carrying mechanism according to claim 1, characterized in that: The clamping drive assembly includes a first drive motor, a first screw rod, a second screw rod and a first transmission structure, the axis of the first screw rod and the axis of the second screw rod both extend along the first direction, and the first drive motor is used to drive the first screw rod and the second screw rod to rotate synchronously and in the same direction through the first transmission structure; The first screw comprises a first thread segment and a second thread segment, and the thread direction of the first thread segment is opposite to the thread direction of the second thread segment; the second screw comprises a third thread segment and a fourth thread segment, and the thread direction of the third thread segment is opposite to the thread direction of the fourth thread segment; The thread direction of the first thread segment is consistent with the thread direction of the third thread segment, and the thread direction of the second thread segment is consistent with the thread direction of the fourth thread segment; The first thread segment and the third thread segment are respectively threadedly connected to the clamping base plate of one of the clamping assemblies, and the second thread segment and the fourth thread segment are respectively threadedly connected to the clamping base plate of the other clamping assembly.

10. The object carrying mechanism according to claim 9, characterized in that: The first transmission structure includes a first belt, a first main pulley and a first secondary pulley, the first main pulley and the first secondary pulley are respectively rotatably connected to the tray, the first belt is wound around the first main pulley and the first secondary pulley, and the first driving motor is used to drive the first main pulley to rotate; The first thread segment is coaxially connected to the first primary pulley, and the third thread segment is coaxially connected to the first secondary pulley.

11. The object carrying mechanism according to claim 10, characterized in that: The clamping drive assembly further includes a second transmission structure, the second transmission structure includes a second belt, a second main pulley and a second secondary pulley, the second main pulley and the second secondary pulley are respectively rotatably connected to the tray, and the second belt is wound around the second main pulley and the second secondary pulley; The output shaft of the first driving motor is coaxially connected to the second main pulley, and the second secondary pulley is coaxially connected to the first main pulley.

12. The object carrying mechanism according to claim 1, characterized in that: The clamping drive assembly includes a second drive motor, a first screw rod, a second screw rod and a third transmission structure, the axis of the first screw rod and the axis of the second screw rod both extend along the first direction, and the second drive motor is used to drive the first screw rod and the second screw rod to rotate synchronously and in opposite directions through the third transmission structure; The first screw comprises a first thread segment and a second thread segment, and the thread direction of the first thread segment is opposite to the thread direction of the second thread segment; the second screw comprises a third thread segment and a fourth thread segment, and the thread direction of the third thread segment is opposite to the thread direction of the fourth thread segment; The thread direction of the first thread segment is opposite to that of the third thread segment, and the thread direction of the second thread segment is opposite to that of the fourth thread segment; The first thread segment and the third thread segment are respectively threadedly connected to the clamping base plate of one of the clamping assemblies, and the second thread segment and the fourth thread segment are respectively threadedly connected to the clamping base plate of the other clamping assembly.

13. The object carrying mechanism according to claim 12, characterized in that: The third transmission structure includes a third belt, a third main pulley, a third secondary pulley, a fourth belt, a fourth main pulley, a fourth secondary pulley, a first gear and a second gear, the third main pulley, the third secondary pulley, the fourth main pulley and the fourth secondary pulley are respectively rotatably connected to the tray, the third belt is wound around the third main pulley and the third secondary pulley, and the fourth belt is wound around the fourth main pulley and the fourth secondary pulley; The first thread segment is coaxially connected to the third primary pulley, and the third thread segment is coaxially connected to the fourth secondary pulley; The first gear is coaxially connected to the third secondary pulley, and the second gear is coaxially connected to the fourth primary pulley; The first gear is meshed with the second gear, and the rotation speed of the first gear is consistent with the rotation speed of the second gear; The second driving motor is used to drive the third main pulley to rotate.

14. The object carrying mechanism according to any one of claims 9 to 13, characterized in that: The clamping base plate comprises a base plate body, a first connecting block and a second connecting block, the engaging member is mounted on the base plate body along the second direction, and the clamping unit is slidably connected to the base plate body along the second direction; The first connecting block and the second connecting block are respectively connected to the bottom plate body; The first thread segment is threadedly connected to the first connection block of one of the clamping assemblies, and the third thread segment is threadedly connected to the second connection block of one of the clamping assemblies; The second threaded section is threadedly connected to the first connection block of another clamping assembly, and the fourth threaded section is threadedly connected to the second connection block of another clamping assembly.

15. The object carrying mechanism according to claim 1, characterized in that: The tray is a hollow frame structure, and the two clamping assemblies are arranged relatively on the inner side of the frame structure along the first direction; The object-carrying mechanism further comprises a bracket, a guide rail and a slider, wherein the guide rail is arranged on the bracket along the second direction, the slider is slidably connected to the guide rail, and a side of the slider away from the guide rail is connected to the tray, so that the tray is slidably connected to the bracket along the second direction; The object-carrying mechanism further comprises a tray driving assembly, wherein the tray driving assembly is used to drive the tray to slide relative to the bracket along the second direction; The tray driving assembly comprises a linear motor, which is mounted on the bracket and has an output end connected to the tray.

16. A PCB board testing device, characterized in that: It includes a machine platform, a loading device, a testing device, a unloading device and a material conveying device. The loading device, the testing device and the unloading device are sequentially arranged on the machine platform along the conveying direction of the material. The loading device is used to provide the material, the testing device is used to test the material, and the unloading device is used to unload the material after the test is completed. The material conveying device is arranged on the machine platform, and is used to convey the material provided by the loading device to the testing device, and is also used to convey the tested material to the unloading device; the material conveying device comprises the carrying mechanism according to any one of claims 1 to 15; The material is a PCB board.

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