Electronic component welding device

Abstract

The utility model discloses an electronic component welding device, and belongs to the technical field of printed circuit welding equipment. An electronic element welding device comprises a workbench, an overturning groove is formed in the middle of the workbench, a transmission chain is arranged on the side wall of the overturning groove, a connecting rod is arranged on the outer side wall of the transmission chain, a shaft sleeve is arranged at the end, away from the transmission chain, of the connecting rod, and a rotating shaft is arranged in the shaft sleeve; a fixing frame used for clamping a printed circuit board is connected between the two rotating shafts, magnetic attraction blocks are arranged at the ends, away from the fixing frame, of the rotating shafts, a turnover mechanism for driving the magnetic attraction blocks to rotate is arranged on the workbench, and a welding mechanical arm is arranged at the position, opposite to the turnover mechanism, of the workbench; the turnover device has the advantages that turnover action can be conveniently and rapidly completed, and continuous production operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit welding equipment, in particular to an electronic component welding device. Background Art

[0002] Electronic components are mainly soldered to printed circuit boards and connected to each other to form an electronic circuit with specific functions. When soldering electronic components to printed circuit boards, a soldering device is required. The existing electronic component soldering device requires the circuit board to be placed on a workbench and fixed and clamped. When electronic components need to be soldered on both sides of the circuit board, the staff needs to take out the circuit board, turn it over, and fix and clamp the circuit board again, which reduces the efficiency of soldering.

[0003] To solve the above problems, a utility model patent with announcement number CN219465145U provides an electronic component welding device, including a platform, a support frame is commonly installed on the front and rear surfaces of the platform, a first electric push rod is installed in the inner cavity of the support frame, a welding head is installed at one end of the output rod of the first electric push rod, installation grooves are provided on the front and rear surfaces of the inner cavity of the support frame, and a clamping mechanism is installed in the inner cavity of the installation groove. By setting a clamping piece, when the infrared probe detects the electronic component, the conveyor belt stops, and the second electric push rod drives the third electric push rod to move downward. When it moves to the specified position, the third electric push rod drives the clamping piece to move to clamp the electronic component. When the electronic component needs to be turned over, the second electric push rod drives the electronic component to rise to a safe height, and the rotating motor starts to drive the electronic component to be turned over. There is no need for manual personnel to turn over the electronic component, thereby improving production efficiency.

[0004] However, the above solution requires the cooperation of multiple electric push rods to complete the flipping operation. During flipping, multiple electric push rods need to move in sequence, which significantly increases the processing time. Improvements are needed to further improve production efficiency. Utility Model Content

[0005] The utility model aims to solve the problem of long operation time of flipping action of electronic component welding devices in the prior art, and proposes an electronic component welding device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An electronic component welding device comprises a workbench, wherein a flip groove is arranged in the middle of the workbench, a transmission chain is arranged on the side wall of the flip groove, a connecting rod is arranged on the outer side wall of the transmission chain, a bushing is arranged at the end of the connecting rod away from the transmission chain, a rotating shaft is arranged inside the bushing, a fixed frame for clamping a printed circuit board is connected between the two rotating shafts, a magnetic block is arranged at the end of the rotating shaft away from the fixed frame, a flip mechanism for driving the magnetic block to rotate is arranged on the workbench, and a welding robot arm is arranged at a position opposite to the flip mechanism on the workbench.

[0008] Furthermore, the flipping mechanism comprises a driving motor installed on a workbench, a working end of the driving motor is provided with a magnetic stator, and a magnetic rotor is provided on a side wall of the magnetic block close to the magnetic stator.

[0009] Furthermore, a first magnet is arranged on the end surface of the sleeve close to the magnetic attraction block, and two of the first magnets are symmetrically arranged about the rotation axis. A second magnet corresponding to the first magnet is arranged on the end surface of the magnetic attraction block close to the sleeve.

[0010] Furthermore, the magnetic block includes a shell, the shell is fixedly connected to the rotating shaft, a magnetic rotor is arranged on the end surface of the shell close to the magnetic stator, and a second magnet is arranged on the end surface of the shell close to the sleeve.

[0011] Furthermore, the fixed frame includes an outer frame, both ends of the outer frame are respectively provided with rotating shafts, an upper clamping frame is provided on the inner side of the outer frame, a lower clamping frame is provided below the upper clamping frame, and the upper clamping frame and the lower clamping frame are both rotatably connected to the outer frame through hinges.

[0012] Furthermore, the ends of the upper clamping frame and the lower clamping frame away from the hinge are provided with fastener grooves, elastic plates are arranged in the fastener grooves, fastener protrusions are arranged on the outer side walls of the elastic plates, and grooves corresponding to the fastener protrusions are arranged on the inner wall of the outer frame.

[0013] Furthermore, a sensor for detecting the fixing frame is arranged on the workbench.

[0014] Compared with the prior art, the utility model provides an electronic component welding device, which has the following beneficial effects:

[0015] The utility model discloses an electronic component welding device. When in use, the circuit board is clamped in a fixed frame, and the fixed frame and the printing plate are driven to move on a workbench by a transmission chain. When the device moves to align with a flipping mechanism, a welding robot arm performs welding on the circuit board. After welding on one side is completed, the flipping mechanism is started to drive the fixed frame and the circuit board to flip to the other side through a magnetic suction block, and the welding robot arm continues to weld the other side of the circuit board. Compared with the prior art, the fixed frame and the circuit board are directly driven to rotate by the flipping mechanism, and no other mechanical actions are required. The flipping action can be completed quickly, thereby improving work efficiency.

[0016] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure enlargement of part A;

[0019] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 4 It is a right side schematic diagram of the overall structure of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of the fixed frame structure of the utility model;

[0022] Figure 6 for Figure 5 A schematic diagram of the structure of part B in the middle is enlarged;

[0023] Figure 7 This is a schematic diagram of the main view of the fixed frame structure of the utility model;

[0024] Figure 8 This is a schematic diagram of the magnetic block and shaft sleeve structure of the utility model.

[0025] In the figure:

[0026] 1. Workbench; 2. Fixed frame; 21. Bushing; 22. First magnet; 23. Second magnet; 3. Transmission chain; 4. Connecting rod; 5. Driving source; 6. Turning mechanism; 61. Driving motor; 62. Magnetic stator; 7. Sensor; 8. Welding robot arm; 9. Magnetic block; 91. Magnetic rotor; 92. Shell; 10. Upper clamping frame; 1001. Fastener slot; 1002. Elastic plate; 1003. Fastener protrusion; 11. Outer frame; 12. Lower clamping frame; 13. Hinge; 14. Rotating shaft. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figure 1-8 The utility model is an electronic component welding device, including a workbench 1, a flip groove is arranged in the middle of the workbench 1, a transmission chain 3 is arranged on the side wall of the flip groove, a connecting rod 4 is arranged on the outer wall of the transmission chain 3, a shaft sleeve 21 is arranged at the end of the connecting rod 4 away from the transmission chain 3, a rotating shaft 14 is arranged inside the shaft sleeve 21, a fixed frame 2 for clamping a printed circuit board is connected between the two rotating shafts 14, a magnetic block 9 is arranged at the end of the rotating shaft 14 away from the fixed frame 2, a flip mechanism 6 for driving the magnetic block 9 to rotate is arranged on the workbench 1, and a welding robot arm 8 is arranged at a position opposite to the flip mechanism 6 on the workbench 1.

[0029] The flip groove runs through the table top of the workbench 1. Sprockets are installed on both sides of the flip groove. A driving shaft is installed on the sprocket at the end. The driving shaft is connected to the working end of the driving source 5. The driving source 5 can use a servo motor. The driving source 5 drives the transmission chain 3 to rotate, and further drives the connecting rod 4, the sleeve 21, the fixed frame 2 and the circuit board to move. When it moves to the welding station, it stops, and the welding robot arm 8 performs welding operations on the circuit board. Then the flipping mechanism drives the fixed frame 2 and the circuit board to rotate and flip to the other side, and the welding robot arm 8 completes the welding operation on the other side.

[0030] The height of the transmission chain 3 and the connecting rod 4 is greater than the width of the fixed frame 2 to prevent the fixed frame 2 from hitting the fixed frame 2 below when the fixed frame 2 rotates.

[0031] The flipping mechanism 6 comprises a driving motor 61 mounted on the workbench 1 . A magnetic stator 62 is disposed at the working end of the driving motor 61 . A magnetic rotor 91 is disposed on the side wall of the magnetic block 9 close to the magnetic stator 62 .

[0032] When the fixed frame 2 moves to the welding station, the magnetic rotor 91 is aligned with the magnetic stator 62, the magnetic stator 62 is started, and a planar magnetic transmission coupling is formed with the magnetic rotor 91, and the drive motor 61 is started to rotate 180 degrees, driving the magnetic stator 62, the magnetic rotor 91, the rotating shaft 14, the fixed frame 2, and the circuit board to rotate 180 degrees.

[0033] The driving motor 61 can be a servo motor, and the planar magnetic transmission coupling is a mature existing technology. The magnetic stator 62 and the magnetic rotor 91 are composed of multiple permanent magnets to form a match, which will not be repeated here.

[0034] A first magnet 22 is disposed on the end surface of the sleeve 21 close to the magnetic block 9 , and the two first magnets 22 are symmetrically disposed about the rotating shaft 14 . A second magnet 23 corresponding to the first magnet 22 is disposed on the end surface of the magnetic block 9 close to the sleeve 21 .

[0035] The original state of the fixed frame 2 is horizontal. At this time, the second magnet 23 corresponds to the first magnet 22 and attracts each other, so that the fixed frame 2 and the circuit board remain in a horizontal state. When the flip mechanism 6 drives the magnetic block 9 to rotate 180 degrees, the two second magnets 23 are realigned with the first magnet 22, so that the fixed frame 2 continues to remain in a horizontal state.

[0036] In the present application, the magnetic force between the magnetic stator 62 and the magnetic rotor 91 is greater than the magnetic force between the second magnet 23 and the first magnet 22. The magnetic attraction of the first magnet 22 and the second magnet 23 prevents the fixed frame 2 and the circuit board from rotating freely during movement and welding.

[0037] The magnetic block 9 includes a shell 92 , which is fixedly connected to the rotating shaft 14 . A magnetic rotor 91 is arranged on the end surface of the shell 92 close to the magnetic stator 62 , and a second magnet 23 is arranged on the end surface of the shell 92 close to the shaft sleeve 21 .

[0038] The second magnet 23 and the magnetic rotor 91 are both thin-sheet structures, so that the second magnet 23 is closer to the first magnet 22 than the magnetic rotor 91, and the cross-sectional sizes of the second magnet 23 and the first magnet 22 are also smaller than the overall cross-sectional size of the magnetic rotor 91, thereby reducing the influence of the magnetic attraction between the magnetic rotor 91 and the first magnet 22 (the magnetic attraction effect of the magnetic rotor 91 on the first magnet 22 can also be further weakened by increasing the thickness of the shell 92), so that the magnetic force between the magnetic stator 62 and the magnetic rotor 91 is greater than the magnetic force between the first magnet 22 and the second magnet 23, so that the magnetic stator 62 and the magnetic rotor 91 can cooperate to drive the magnetic block 9 to rotate, and at the same time, when the magnetic stator 62 stops rotating, the magnetic attraction of the first magnet 22 and the second magnet 23 can prevent the fixed frame 2 from rotating freely.

[0039] The fixed frame 2 includes an outer frame 11, with rotating shafts 14 at both ends of the outer frame 11, an upper clamping frame 10 is arranged on the inner side of the outer frame 11, and a lower clamping frame 12 is arranged below the upper clamping frame 10. The upper clamping frame 10 and the lower clamping frame 12 are both rotatably connected to the outer frame 11 through hinges 13.

[0040] The upper clamping frame 10 and the lower clamping frame 12 are symmetrical structures. When in use, only one of the upper clamping frame 10 and the lower clamping frame 12 is opened at the same time. When the circuit board needs to be placed, the upper clamping frame 10 is opened, and the circuit board is placed on the top of the lower clamping frame 12 in the outer frame 11, and then the upper clamping frame 10 is closed. The upper clamping frame 10 and the lower clamping frame 12 are pressed on the edge of the circuit board from both sides, and the welding robot arm 8 welds the circuit board from the middle of the upper clamping frame 10 and the lower clamping frame 12, and clamps the circuit board between the upper clamping frame 10 and the lower clamping frame 12; when the welding work is completed, the lower clamping frame 12 is facing upward, and the lower clamping frame 12 is opened to take out the welded circuit board.

[0041] The ends of the upper clamping frame 10 and the lower clamping frame 12 away from the hinge 13 are provided with fastener grooves 1001, elastic plates 1002 are arranged in the fastener grooves 1001, fastener protrusions 1003 are arranged on the outer wall of the elastic plate 1002, and grooves corresponding to the fastener protrusions 1003 are arranged on the inner wall of the outer frame 11.

[0042] When the upper clamping frame 10 or the lower clamping frame 12 is closed, the upper clamping frame 10 or the lower clamping frame 12 squeezes the fastener protrusion 1003, and the fastener protrusion 1003 squeezes the elastic plate 1002 to elastically deform and tilt toward the inside of the fastener groove 1001. When the fastener protrusion 1003 is aligned with the groove, the elastic plate 1002 returns to its original state and drives the fastener protrusion 1003 to buckle into the groove.

[0043] A sensor 7 for detecting the fixing frame 2 is arranged on the workbench 1 .

[0044] The sensor 7 can be a proximity switch or an infrared sensor. When the fixing frame 2 enters the welding station, the sensor 7 detects the adjacent sleeve 21 (the sleeve 21 is more protruding than the outer frame 11 and thus closer to the sensor 7), and the transmission chain 3 stops.

[0045] Working principle: When in use, the worker opens the upper clamping frame 10, clamps the circuit board in the fixed frame 2, the transmission chain 3 drives the fixed frame 2 to move to the welding station, the magnetic rotor 91 is aligned with the magnetic stator 62, the sensor 7 detects the fixed frame 2, the transmission chain 3 stops, and the welding robot arm 8 welds one side of the circuit board. After welding is completed, the drive motor 61 drives the magnetic stator 62 to rotate 180 degrees, drives the circuit board to flip 180 degrees, and the welding robot arm 8 welds the other side of the circuit board. After welding is completed, continue to start the transmission chain 3 to enter the next working cycle.

[0046] The work of placing the circuit board into the fixing frame 2 and taking it out from the fixing frame 2 can be completed when the circuit board is welded, making full use of the operation time gap to ensure the continuous welding operation.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electronic component welding device, comprising a workbench (1), characterized in that: A turning groove is arranged in the middle of the workbench (1), a transmission chain (3) is arranged on the side wall of the turning groove, a connecting rod (4) is arranged on the outer side wall of the transmission chain (3), a shaft sleeve (21) is arranged at one end of the connecting rod (4) away from the transmission chain (3), a rotating shaft (14) is arranged inside the shaft sleeve (21), a fixed frame (2) for clamping a printed circuit board is connected between the two rotating shafts (14), a magnetic block (9) is arranged at one end of the rotating shaft (14) away from the fixed frame (2), a turning mechanism (6) for driving the magnetic block (9) to rotate is arranged on the workbench (1), and a welding robot arm (8) is arranged at a position on the workbench (1) opposite to the turning mechanism (6).

2. An electronic component welding device according to claim 1, characterized in that: The turning mechanism (6) comprises a driving motor (61) mounted on the workbench (1); a magnetic stator (62) is provided at the working end of the driving motor (61); and a magnetic rotor (91) is provided on a side wall of the magnetic block (9) close to the magnetic stator (62).

3. An electronic component welding device according to claim 2, characterized in that: A first magnet (22) is arranged on the end surface of the shaft sleeve (21) close to the magnetic attraction block (9), and two of the first magnets (22) are symmetrically arranged about the rotating shaft (14). A second magnet (23) corresponding to the first magnet (22) is arranged on the end surface of the magnetic attraction block (9) close to the shaft sleeve (21).

4. An electronic component welding device according to claim 3, characterized in that: The magnetic block (9) comprises a shell (92), the shell (92) being fixedly connected to the rotating shaft (14), a magnetic rotor (91) being arranged on an end surface of the shell (92) close to the magnetic stator (62), and a second magnet (23) being arranged on an end surface of the shell (92) close to the shaft sleeve (21).

5. The electronic component welding device according to claim 1, characterized in that: The fixed frame (2) comprises an outer frame (11), both ends of the outer frame (11) are respectively provided with rotating shafts (14), an upper clamping frame (10) is provided on the inner side of the outer frame (11), and a lower clamping frame (12) is provided below the upper clamping frame (10), and the upper clamping frame (10) and the lower clamping frame (12) are both rotatably connected to the outer frame (11) via hinges (13).

6. The electronic component welding device according to claim 5, characterized in that: The ends of the upper clamping frame (10) and the lower clamping frame (12) away from the hinge (13) are provided with fastener grooves (1001), an elastic plate (1002) is arranged in the fastener groove (1001), a fastener protrusion (1003) is arranged on the outer wall of the elastic plate (1002), and a groove corresponding to the fastener protrusion (1003) is arranged on the inner wall of the outer frame (11).

7. The electronic component welding device according to claim 1, characterized in that: The workbench (1) is provided with a sensor (7) for detecting the fixing frame (2).

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