SMT (Surface Mount Technology) device

Abstract

The utility model relates to the technical field of SMT (Surface Mount Technology), in particular to an SMT device, which comprises a table board, a plurality of supporting legs are arranged below the table board, the upper ends of the supporting legs are fixedly assembled with the surface of the table board through screws, and a plurality of linkage bearings are arranged above the table board. When a circuit board with SMT needs to be conveyed, a power source of a motor and driving of the motor are switched on firstly, so that a rotating shaft can drive a driving shaft rod to rotate, then a driving roller is driven to be in linkage, through the transmission effect of a conveying belt, meshing of insections at the joint of the driving roller and the linkage roller and the conveying belt is matched, the conveying belt can stably rotate the circuit board, and meanwhile, the circuit board can be stably conveyed. The linkage roller can achieve a stable supporting effect, so that stable driving of the conveying belt can be achieved, the two symmetrically-distributed limiting plates can oppositely move or be away from each other at the same time through stretching and retracting of the first piston rod of the first air cylinder, and therefore when the circuit board is conveyed, the circuit board can be prevented from sliding off from the two sides of the conveying belt.

Description

TECHNICAL FIELD

[0001] The utility model relates to SMT patch technical field especially relates to SMT patch device. BACKGROUND

[0002] SMT (Surface Mount Technology) is a kind of technology that electronic components are directly mounted to the surface of printed circuit board (PCB), without drilling holes on the board.SMT patch is one of the most commonly used methods in modern electronic manufacturing, with the advantages of high efficiency, reliability and low cost.

[0003] As prior art Chinese patent publication "CN221173465U" provides SMT patch detection device, including the detection probe that is set on the upper side of conveying belt through U-shaped plate, still including the limiting mechanism for being used for the limiting of SMT patch and being set on conveying belt, the limiting mechanism includes the support rod that is fixedly connected on the surface of conveying belt and is symmetrically arranged two by two, the other end of four support rods is fixedly connected with placing plate, the L-shaped plate is fixedly connected on the opposite two side walls of placing plate, two L-shaped plates are connected with limiting plate through drive mechanism.The utility model discloses through the setting of limiting mechanism, under the driving effect of drive mechanism, promotes two limiting plates to move mutually close, thereby realizes the automatic centering limiting of SMT patch, thereby guarantees the position stability of SMT patch in the detection process of receiving detection probe, guarantees the comprehensiveness of detection probe to SMT patch detection, further improves the quality of SMT patch detection.

[0004] At present, when carrying out the patch installation of circuit board, due to the circuit board in the transportation process, especially after entering into the assembly line, although production environment reaches the dustless effect as far as possible, but the surface still adheres a small amount of floating dust, if this kind of floating dust does not clean, then it is easy to influence the quality of patch. UTILITY MODEL CONTENTS

[0005] The utility model discloses a SMT patch device that solves the above-mentioned shortcomings in the prior art.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] Design SMT patch device, including mesa, the lower side of mesa is provided with a plurality of supporting legs, and the upper end of the supporting leg is fixedly assembled with the surface of the mesa by screws. A plurality of linkage bearings are arranged on the upper side of the mesa. The outer wall surface of the linkage bearing is fixedly assembled with the surface of the mesa by a support. A same linkage shaft rod is arranged to penetrate the inside of two linkage bearings distributed along the same horizontal position. The surface of the linkage shaft rod is arranged in interference fit with the inner ring wall of the linkage bearing. A linkage roller is fixedly sleeved on the surface of the linkage shaft rod.

[0008] The center position of the table top is provided with two symmetrically distributed driving bearings, the outer wall surface of the driving bearing is fixedly assembled with the surface of the table top through a support, the inside of the two driving bearings is provided with the same driving shaft rod, the surface of the driving shaft rod is provided in interference fit with the inner ring wall of the driving bearing, the table top is provided with a motor, the outer wall surface of the motor is fixedly assembled with the surface of the table top through a support, the inside of the motor is provided with a rotating shaft for driving, the end of the rotating shaft is fixedly and transmissionally connected with the end of the driving shaft rod through a shaft coupling, the surface of the driving shaft rod is fixedly sleeved with a driving roller.

[0009] The driving roller and the plurality of linkage rollers are provided through a transmission belt transmission, and the meshing positions of the driving roller and the linkage roller and the center area are provided with tooth patterns.

[0010] In detail, the table top is provided with a cylinder one, the lower end of the cylinder one is fixed with the table top through a screw, the inside of the cylinder one is provided with a piston rod one for telescopic expansion, and the upper end of the piston rod one is fixedly provided with a supporting plate.

[0011] In detail, the upper end of the supporting plate is fixedly provided with a display screen, the wiring end of the display screen is connected with a camera through a data line, the camera is provided through the supporting plate, and the connecting position of the camera and the supporting plate is fixedly assembled through a screw.

[0012] In detail, the table top is further provided with a positioning frame, one side of the positioning frame is fixedly assembled with the surface of the table top through a support, and the two sides of the positioning frame are provided through a cylinder two.

[0013] In detail, the inside of the cylinder two is provided with a piston rod two for driving, the end of the piston rod two is fixedly provided with a limiting plate, the limiting plates distributed along the two sides are symmetrically arranged, and the lower end of the limiting plate is closely arranged with the surface of the transmission belt.

[0014] In detail, the upper end of the positioning frame is fixedly provided with an air pump, the air outlet position of the air pump is flange-connected with an elbow pipe, the other end of the elbow pipe is fixedly provided with a jet head, the connecting position of the jet head and the positioning frame is fixedly assembled through a screw, and the lower end of the jet head is provided through a plurality of air nozzles, respectively, and the connecting positions of the air nozzles and the jet head are fixedly connected through welding.

[0015] In detail, the air inlet position of the air pump is flange-connected with a cylinder, the inside of the cylinder is provided with an embedded frame, the inner side of the embedded frame is fixedly embedded with a filter screen, and the end surface of the cylinder is fixedly provided with a knob.

[0016] In detail, the outer thread is arranged on the outer ring wall of the embedded frame, the inner wall surface of the cylinder is provided with an inner thread, and the inner thread and the outer thread are threadedly connected with each other.

[0017] The design scheme of the utility model has the beneficial effects in the application process:

[0018] 1. When the circuit board needs to be conveyed for SMT patching, first, the power supply of the motor is turned on, the motor is driven, the rotating shaft can drive the driving shaft rod to rotate, thereby driving the driving roller linkage, through the transmission effect of the conveying belt, the tooth meshing of the driving roller and the linkage roller and the conveying belt is matched, the conveying belt can stably rotate the circuit board, at the same time, the linkage roller can play a stable supporting effect, so that the stable driving of the conveying belt can be realized, through the extension and retraction of the piston rod of the air cylinder one, the two limit plates symmetrically distributed can move towards or away from each other, so that the circuit board can be prevented from sliding off from both sides of the conveying belt during conveying.

[0019] 2. Through the work of the air pump, air flow can be conveyed from the air outlet position, the air flow can be conveyed to the position of the air jet head through the elbow pipe, through the setting of the air nozzle, the circuit board can be stably blown, so that the floating dust attached to the surface of the circuit board can be cleaned again during the patching of the circuit board, the cylinder structure is added at the air inlet position of the air pump, the dust can be filtered through the filter screen, so that the dust is prevented from adhering to the circuit board with the air flow, through the mutual thread separation of the external thread and the internal thread, the filter screen can be disassembled and cleaned after regular use, the built-in frame can be rotated through the knob. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole front structure schematic view of the utility model;

[0021] Figure 2 It is a whole back structure schematic view of the utility model;

[0022] Figure 3 It is a positioning frame and air pump part structure schematic view of the utility model;

[0023] Figure 4 It is a cylinder internal structure schematic view of the utility model.

[0024] In the drawing: 1, table top; 11, linkage bearing; 12, linkage shaft rod; 13, linkage roller; 14, driving bearing; 15, driving shaft rod; 16, motor; 17, driving roller; 18, conveying belt; 2, air cylinder one; 21, support plate; 22, display screen; 23, camera; 3, positioning frame; 31, air cylinder two; 32, limit plate; 33, air pump; 34, elbow pipe; 35, air jet head; 36, air nozzle; 37, cylinder; 3001, built-in frame; 3002, filter screen; 3003, internal thread; 3004, external thread; 3005, knob. DETAILED DESCRIPTION

[0025] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment.

[0026] Referring to Figures 1-4 , the SMT patch device comprises a table top 1, a plurality of supporting legs are arranged below the table top 1, the upper end of the supporting leg is fixedly assembled with the surface of the table top 1 through a screw, a plurality of linkage bearings 11 are arranged above the table top 1, the outer wall surface of the linkage bearing 11 is fixedly assembled with the surface of the table top 1 through a support, and the same linkage shaft 12 is arranged to penetrate the inside of two linkage bearings 11 distributed along the same horizontal position, the surface of the linkage shaft 12 is arranged in interference fit with the inner ring wall of the linkage bearing 11, and the linkage roller 13 is fixedly sleeved on the surface of the linkage shaft 12;

[0027] Two driving bearings 14 are arranged at the central position of the table top 1 and are symmetrically distributed, the outer wall surface of the driving bearing 14 is fixedly assembled with the surface of the table top 1 through a support, the same driving shaft 15 is arranged to penetrate the inside of the two driving bearings 14, the surface of the driving shaft 15 is arranged in interference fit with the inner ring wall of the driving bearing 14, a motor 16 is arranged on the table top 1, the outer wall surface of the motor 16 is fixedly assembled with the surface of the table top 1 through a support, a rotating shaft for driving is arranged in the motor 16, the end portion of the rotating shaft is fixedly and transmissionally connected with the end portion of the driving shaft 15 through a shaft coupling, and the driving roller 17 is fixedly sleeved on the surface of the driving shaft 15;

[0028] The driving roller 17 and the plurality of linkage rollers 13 are transmissionally arranged through the conveying belt 18, and the driving roller 17 and the linkage roller 13 are meshingly provided with a tooth pattern at the connection position with the conveying belt 18 and close to the central area.

[0029] It is further explained that the air cylinder one 2 is arranged on the table top 1, the lower end of the air cylinder one 2 is fixed with the table top 1 through a screw, the piston rod one for telescoping is arranged in the air cylinder one 2, the upper end of the piston rod one is fixedly provided with the supporting plate 21, the lifting adjustment of the camera 23 can be realized through the telescoping of the piston rod one of the air cylinder one 2, so that the shooting range can be adjusted by lengthening or shortening the interval.

[0030] It is further explained that the display screen 22 is fixedly arranged at the upper end of the supporting plate 21, the connecting end of the display screen 22 is connected with the camera 23 through a data line, the camera 23 is arranged to penetrate the supporting plate 21, the connection position of the camera 23 and the supporting plate 21 is fixedly assembled through a screw, and the content shot by the camera 23 can be displayed through the display screen 22.

[0031] It needs to be further explained that the positioning frame 3 is further arranged on the table board 1, one side of the positioning frame 3 is fixedly assembled with the surface of the table board 1 through a support, and the two sides of the positioning frame 3 are provided with air cylinders two 31 penetrating through. The air cylinders two 31 can adjust the spacing of the limiting plates 32 distributed on the two sides through the extension and retraction of the piston rods two.

[0032] It needs to be further explained that the inside of the air cylinder two 31 is provided with a piston rod two for driving, the end of the piston rod two is fixed with a limiting plate 32, the limiting plate 32 is symmetrically arranged along the limiting plates 32 distributed on the two sides, and the lower end of the limiting plate 32 is closely arranged with the surface of the conveying belt 18. Through the limiting plates 32 distributed on the two sides, it can be ensured that the circuit board will not slide out from the two sides of the conveying belt 18 when the circuit board is driven on the conveying belt 18.

[0033] It needs to be further explained that the upper end of the positioning frame 3 is fixed with an air pump 33, the air outlet position flange of the air pump 33 is butt-jointed with an elbow pipe 34, the other end of the elbow pipe 34 is fixed with a jet head 35, the joint position of the jet head 35 and the positioning frame 3 is fixedly assembled through a screw, the lower end of the jet head 35 penetrates through a plurality of air nozzles 36 respectively, the joint position of the air nozzles 36 and the jet head 35 is fixed by welding. Through the air outlet effect of the air pump 33, the elbow pipe 34 can be conveyed, then sent into the jet head 35, then blown out through the air nozzles 36, so that the floating dust on the surface of the circuit board can be cleaned.

[0034] It needs to be further explained that the air inlet position flange of the air pump 33 is butt-jointed with a cylinder 37, the inside of the cylinder 37 is provided with an embedded frame 3001, the inside of the embedded frame 3001 is fixedly embedded with a filter screen 3002, the end face of the cylinder 37 is fixed with a knob 3005, and the filter screen 3002 is made of non-woven fabric material and can filter floating dust during air intake.

[0035] It needs to be further explained that the outer thread 3004 is arranged on the outer wall of the embedded frame 3001, the inner thread 3003 is arranged on the inner wall of the cylinder 37, the inner thread 3003 and the outer thread 3004 are threadedly connected with each other, and the assembly and disassembly of the embedded frame 3001 and the cylinder 37 can be realized through the thread connection of the inner thread 3003 and the outer thread 3004.

[0036] Working mode: when the circuit board needs to be conveyed, the motor 16 is powered on, the driving shaft 15 is driven to rotate, the driving roller 17 is driven to rotate, the transmission belt 18 is driven to rotate, the driving roller 17 and the linkage roller 13 are engaged with the transmission belt 18, the transmission belt 18 is stably rotated, and the linkage roller 13 provides stable support, so that the transmission belt 18 is stably driven, the piston rod of the cylinder 2 is extended and retracted, the two limiting plates 32 are moved towards or away from each other, and the circuit board is prevented from sliding off the transmission belt 18.

[0037] The air pump 33 can convey air flow from the air outlet, the air flow can be conveyed to the position of the air jet head 35 through the elbow pipe 34, the circuit board can be stably blown through the air nozzle 36, the dust attached to the surface of the circuit board can be cleaned when the circuit board is pasted, the cylinder 37 structure is added at the air inlet position of the air pump 33, the dust can be filtered through the filter screen 3002, the dust is prevented from adhering to the circuit board again with the air flow, the filter screen 3002 can be disassembled and cleaned through the mutual thread separation of the external thread 3004 and the internal thread 3003, and the built-in frame 3001 can be rotated through the knob 3005.

[0038] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. SMT pick-and-place device comprising a table (1), characterized in that: The lower part of the table (1) is provided with several supporting legs, the upper end of the supporting leg is fixedly assembled with the surface of the table (1) through screws, the upper part of the table (1) is provided with several linkage bearings (11), the outer wall surface of the linkage bearing (11) is fixedly assembled with the surface of the table (1) through a support, the inside of two linkage bearings (11) distributed along the same transverse position is provided with the same linkage shaft (12) penetrating through, the surface of the linkage shaft (12) is provided in interference fit with the inner ring wall of the linkage bearing (11), the surface of the linkage shaft (12) is fixedly sleeved with a linkage roller (13); The central position of the table (1) is provided with two symmetrically distributed drive bearings (14), the outer wall surface of the drive bearing (14) is fixedly assembled with the surface of the table (1) through a support, the inside of the two drive bearings (14) is provided with the same drive shaft (15) penetrating through, the surface of the drive shaft (15) is provided in interference fit with the inner ring wall of the drive bearing (14), the table (1) is provided with a motor (16), the outer wall surface of the motor (16) is fixedly assembled with the surface of the table (1) through a support, the inside of the motor (16) is provided with a rotating shaft for driving, the end of the rotating shaft is fixedly and transmissionally connected with the end of the drive shaft (15) through a coupling, the surface of the drive shaft (15) is fixedly sleeved with a drive roller (17). The drive roller (17) and the linkage roller (13) are transmissionally arranged through a conveyor belt (18), the drive roller (17) and the linkage roller (13) are meshingly provided with a tooth pattern at the connection position with the conveyor belt (18) and close to the central area.

2. The SMT patch device of claim 1, wherein: The table (1) is provided with a cylinder one (2), the lower end of the cylinder one (2) is fixed with the table (1) through screws, the inside of the cylinder one (2) is provided with a piston rod one for telescopic extension, the upper end of the piston rod one is fixedly provided with a supporting plate (21).

3. The SMT patch device of claim 2, wherein: The upper end of the supporting plate (21) is fixedly provided with a display screen (22), the wiring end of the display screen (22) is connected with a camera (23) through a data line, the camera (23) is penetratingly arranged with the supporting plate (21), the connection position of the camera (23) and the supporting plate (21) is fixedly assembled through screws.

4. The SMT patch device of claim 1, wherein: The table (1) is further provided with a positioning frame (3), one side of the positioning frame (3) is fixedly assembled with the surface of the table (1) through a support, the both sides of the positioning frame (3) are penetratingly provided with a cylinder two (31).

5. The SMT patch device of claim 4, wherein: The inside of the cylinder two (31) is provided with a piston rod two for driving, the end of the piston rod two is fixedly provided with a limiting plate (32), the limiting plates (32) distributed along the both sides are symmetrically arranged, and the lower end of the limiting plate (32) is closely arranged with the surface of the conveyor belt (18).

6. The SMT patch device of claim 5, wherein: The upper end of the positioning frame (3) is fixedly provided with an air pump (33), the air outlet position of the air pump (33) is flange-connected with an elbow (34), the other end of the elbow (34) is fixedly provided with a jet head (35), the connection position of the jet head (35) and the positioning frame (3) is fixedly assembled through screws, the lower end of the jet head (35) is penetratingly provided with several air nozzles (36), the connection position of the air nozzle (36) and the jet head (35) is fixedly welded.

7. The SMT patch device of claim 6, wherein: The air inlet position flange of the air pump (33) is connected with a cylinder (37), the inside of the cylinder (37) is provided with an embedded frame (3001), the inner side of the embedded frame (3001) is fixedly embedded with a filter screen (3002), and the end face of the cylinder (37) is fixedly provided with a rotary knob (3005).

8. The SMT patch device of claim 7, wherein: The outer wall of the embedded frame (3001) is provided with an external thread (3004), and the inner wall surface of the cylinder (37) is provided with an internal thread (3003), and the internal thread (3003) and the external thread (3004) are threadedly connected with each other.

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