A multi-station coordinated switch circuit board welding device

Abstract

This invention relates to the field of circuit board welding technology, specifically a multi-station coordinated switch circuit board welding equipment, comprising: a frame, on which welding components and a support tray are mounted, and multiple sets of clamping components are detachably mounted on the support tray; a drive component, on which multiple sets are mounted equidistantly in a circumferential direction on the support tray, and a connecting rod is mounted on the drive component; an elastic rod connected to the end of the connecting rod away from the drive component, and when the drive component is activated, the elastic rod can sequentially perform lateral and vertical movements; a follower frame and a stop member, which are slidably connected, the follower frame being connected to the elastic rod, and two sets of arc-shaped clamping members being slidably mounted on the stop member, the arc-shaped clamping members being connected to a pressing structure disposed between the follower frame and the stop member, the pressing structure being able to drive the two sets of arc-shaped clamping members to move closer to each other when the elastic rod abuts against the component and the stop member abuts against the circuit board, thereby improving the stability of the circuit board and the component.

Description

Technical Field

[0001] This invention relates to the field of circuit board welding technology, specifically a multi-station coordinated switch circuit board welding equipment. Background Technology

[0002] In existing technologies, automated soldering of switch circuit boards generally adopts multi-station rotary table soldering equipment. This type of equipment realizes the assembly line operation of circuit boards and components through circumferentially distributed loading, soldering and unloading stations: the rotary table rotates step by step, sending the loading position to the bottom of each functional module in sequence. The loading component first puts the circuit board into the positioning slot of the loading position, and then stacks the components on the corresponding solder pads of the circuit board. Then the rotary table sends the assembly to the soldering station, the soldering head descends to complete the solder joint formation, and finally the rotary table continues to move forward, and the unloading component takes away the finished product.

[0003] To suppress relative slippage caused by rotation start-stop, running vibration, and centrifugal force, the loading position is usually machined with a positioning groove that matches the outline of the circuit board, and a positioning element is set on the side of the component in the loading position to cover the component with a larger area, thereby limiting displacement. The positioning element is pressed before welding and removed during welding.

[0004] However, due to the large contact area and small gap between the positioning component and the component, negative pressure is generated during the separation process. Under the action of negative pressure, the positioning component is very likely to have an adsorption effect on the component when it is removed, causing the component to be carried away from its original position. This leads to defects such as misalignment of pins and pads, cold solder joints, and missing solder joints, affecting the consistency of subsequent soldering. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-station coordinated switch circuit board welding equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multi-station coordinated switching circuit board welding equipment, comprising:

[0008] A frame is provided with a welding assembly and a support tray. Multiple mounting clamps are detachably mounted on the support tray. The welding assembly is capable of welding circuit boards and components placed on the mounting clamps.

[0009] The drive assembly is provided with multiple sets of components that are equidistantly mounted on the support tray in a circumferential direction, and the drive assembly is provided with connecting rods;

[0010] An elastic rod is connected to the end of the connecting rod away from the drive assembly. When the drive assembly is activated, the elastic rod can sequentially perform lateral and vertical movements.

[0011] The follower frame and the abutment are slidably connected. The follower frame is connected to the elastic rod. Two sets of arc-shaped clamping parts are slidably installed on the abutment. The arc-shaped clamping parts are connected to the pressing structure disposed between the follower frame and the abutment. The pressing structure can drive the two sets of arc-shaped clamping parts to move closer to each other when the elastic rod abuts against the component and the abutment abuts against the circuit board.

[0012] The multi-station coordinated switch circuit board welding equipment described above: the drive assembly includes multiple sets of brackets fixedly installed on the support tray, the brackets are provided with two sets of parallel guide grooves, and two sets of first guide wheels rotatably installed at the end of the connecting rod can roll in the guide grooves;

[0013] The guide groove includes a horizontal groove and a vertical groove disposed on the bracket. The horizontal groove and the vertical groove are connected and form an "L" shape.

[0014] As described above, the multi-station coordinated switch circuit board welding equipment includes a drive assembly that is fixedly mounted on the support tray and a side plate connected to the moving end of the electric telescopic rod. The side plate is provided with a slider that can slide within a groove formed on the support.

[0015] A second guide wheel is connected to the first guide wheel, and the second guide wheel can roll within a first inclined groove opened on the side plate.

[0016] The multi-station coordinated switch circuit board welding equipment described above: the elastic rod includes a hysteresis sleeve fixedly connected to the connecting rod, a pin is slidably installed inside the hysteresis sleeve, a first cylindrical spring is sleeved on the pin, one end of the first cylindrical spring is connected to the upper end of the pin, and the other end is connected to the lower side wall of the hysteresis sleeve.

[0017] As described above, the multi-station coordinated switch circuit board welding equipment includes: the follower frame and the hysteresis sleeve are fixedly connected;

[0018] The follower frame has a sliding connection part on its inner side, the abutment is connected to the sliding connection part, and a second columnar spring is also connected to the abutment. The end of the second columnar spring away from the abutment is connected to the follower frame.

[0019] The multi-station coordinated switch circuit board welding equipment as described above: the pressing structure includes a sliding part disposed on the side of the arc-shaped pressing member, the side of the sliding part is provided with a convex shaft, and the sliding part is slidably connected to the transverse groove disposed on the abutting member;

[0020] The pressure-blocking structure also includes two sets of second inclined grooves disposed on the follower frame, and the convex shaft can slide within the second inclined grooves.

[0021] The multi-station coordinated switch circuit board welding equipment as described above: the welding assembly includes a vertical plate and a connecting plate slidably mounted on the vertical plate, the connecting plate being connected to a fourth cylinder disposed on the vertical plate;

[0022] An arc-shaped connecting plate is fixedly installed on the connecting plate, and two sets of drive frames are rotatably installed on the connecting plate. The end of the drive frame away from its rotation center can slide on the arc-shaped connecting plate, and a welding head is connected to the drive frame.

[0023] The multi-station coordinated switch circuit board welding equipment described above includes a pressure rod slidably connected to the connecting plate. A third cylindrical spring is sleeved on the pressure rod, with one end of the third cylindrical spring connected to the end of the pressure rod and the other end connected to the connecting plate.

[0024] The multi-station coordinated switch circuit board soldering equipment described above also includes:

[0025] A first loading assembly and a second loading assembly are mounted on the frame. The first loading assembly and the second loading assembly are respectively used to load circuit boards and components onto the clamping parts.

[0026] The first feeding component includes a feeding tray and a transfer component. A guide frame tangent to the inside of the feeding tray is connected to the feeding tray. The guide frame is perpendicular to and communicates with the transfer component.

[0027] A first cylinder is fixedly installed at one end of the transfer unit;

[0028] The first feeding component further includes a first gripping structure, which is used to grip the circuit board being transported to the end of the transfer component.

[0029] The multi-station coordinated switch circuit board welding equipment described above also includes a receiving assembly mounted on the frame. The receiving assembly includes a second gripping structure and a receiving tray. The second gripping structure is used to transfer the welded circuit boards and components onto the receiving tray.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] By using elastic rods, arc-shaped clamping components, and abutment structures, the ejector pin, arc-shaped clamping component, and abutment component can act sequentially on the components and circuit board, achieving a secondary positioning effect for the components. At the same time, it ensures the clamping force between the components, circuit board, and hysteresis groove, preventing the circuit board and components from shifting due to start-stop inertia, vibration, and centrifugal force during the stepping rotation of the support tray, thus ensuring the subsequent welding quality. During separation, the arc-shaped clamping component and ejector pin will act sequentially, and when the arc-shaped clamping component separates from the component, the ejector pin will still act on the upper part of the component, preventing the component from shifting under negative pressure and adsorption force, further improving the subsequent welding accuracy.

[0032] By using the designed drive components, the elastic rods can achieve higher stroke position accuracy under the guidance of the horizontal and vertical slots, preventing position interference and ensuring uniform force on the components. At the same time, the elastic rods can act vertically on the components, preventing the components from being displaced relative to the circuit board due to the horizontal component force, thus improving the subsequent soldering effect. Attached Figure Description

[0033] Figure 1 A schematic diagram of a multi-station coordinated switch circuit board welding equipment.

[0034] Figure 2 A schematic diagram of the structure after removing the top of the frame in a multi-station coordinated switch circuit board welding equipment.

[0035] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle.

[0036] Figure 4 A schematic diagram of the first or second gripping structure in a multi-station coordinated switch circuit board welding equipment.

[0037] Figure 5 A schematic diagram of the receiving assembly in a multi-station coordinated switch circuit board welding equipment.

[0038] Figure 6 A schematic diagram of the welding components in a multi-station coordinated switch circuit board welding equipment.

[0039] Figure 7 A schematic diagram of the structure of clamping components, drive components, elastic rods, follower frames, and abutment components in a multi-station coordinated switch circuit board welding equipment.

[0040] Figure 8 A schematic diagram of the drive assembly in a multi-station coordinated switch circuit board welding equipment.

[0041] Figure 9An exploded view of the drive assembly in a multi-station coordinated switch circuit board welding equipment.

[0042] Figure 10 for Figure 9 Enlarged view of the structure at point B in the middle.

[0043] Figure 11 A schematic diagram of the follower frame, abutment component, and arc-shaped clamping component in a multi-station coordinated switch circuit board welding equipment.

[0044] Figure 12 Exploded view of the structure of the follower frame, abutment component, and arc-shaped clamping component in a multi-station coordinated switch circuit board welding equipment.

[0045] In the diagram: 1. Frame; 2. Support tray; 3. Clamping component; 301. Hysteresis groove; 4. Support; 401. Slide groove; 402. Horizontal groove; 403. Vertical groove; 5. Electric telescopic rod; 6. Side plate; 601. First inclined groove; 602. Slider; 7. Connecting rod; 8. First guide wheel; 9. Second guide wheel; 10. Hysteresis sleeve; 11. Ejector pin; 12. First cylindrical spring; 13. Follower frame; 1301. Second inclined groove; 1302. Sliding connection; 14. Abutment; 1401. Horizontal position 15. Groove; 16. Arc-shaped clamping part; 17. Sliding part; 18. Convex shaft; 19. Second cylindrical spring; 20. Feeding tray; 21. Guide frame; 22. Transfer part; 23. First cylinder; 24. Connecting frame; 25. Transverse plate; 26. Second cylinder; 27. Third cylinder; 28. Lifting plate; 29. ​​Pneumatic gripper; 30. Receiving tray; 31. Vertical plate; 32. Connecting plate; 33. Fourth cylinder; 34. Arc-shaped connecting plate; 35. Drive frame; 36. Welding head; 37. Pressure rod; 38. Third cylindrical spring. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0047] Please see Figures 1-12 As an embodiment of the present invention, the multi-station coordinated switch circuit board welding equipment includes: a frame 1, a drive assembly, an elastic rod, a follower frame 13, and an abutment member 14.

[0048] The frame 1 is provided with a welding assembly and a support tray 2. Multiple mounting clamps 3 are detachably installed on the support tray 2. The welding assembly can weld circuit boards and components placed on the mounting clamps 3. The mounting clamps 3 are provided with a hysteresis groove 301, and the circuit board can be embedded into the hysteresis groove 301.

[0049] The welding assembly includes a vertical plate 29 and a connecting plate 30 slidably mounted on the vertical plate 29, the connecting plate 30 being connected to a fourth cylinder 31 disposed on the vertical plate 29;

[0050] An arc-shaped connecting plate 32 is fixedly installed on the connecting plate 30, and two sets of drive frames 33 are rotatably installed on the connecting plate 30. The end of the drive frame 33 away from its rotation center can slide on the arc-shaped connecting plate 32. A welding head 34 is connected to the drive frame 33, so that the angle of the drive frame 33 can be adjusted so that the welding angle of the welding head 34 meets the actual requirements.

[0051] The welding assembly also includes a pressure rod 35 that is slidably connected to the connecting plate 30. A third columnar spring 36 is sleeved on the pressure rod 35. One end of the third columnar spring 36 is connected to the end of the pressure rod 35, and the other end is connected to the connecting plate 30.

[0052] In this embodiment, in the initial state, the third columnar spring 36 is in a compressed state, and the connecting plate 30 is at the highest point of its stroke. When the support tray 2 drives the circuit board and components to rotate to the welding station, the fourth cylinder 31 can drive the connecting plate 30 to move toward the support tray 2. In the initial state, the height of the lower end of the pressure rod 35 is higher than the height of the lower end of the welding head 34. This allows the pressure rod 35 to act on the components on the circuit board first when the connecting plate 30 moves downward, so that the downward pressure can act on the components and the circuit board, ensuring that the two can fit tightly together. This prevents the components from slightly moving on the circuit board due to vibration during the welding process, which could cause poor soldering, missing soldering, misaligned pins, etc.

[0053] When the pressure rod 35 abuts against the component, the drive device (not shown in the figure) on the drive frame 33 will drive the two sets of welding heads 34 to move toward the welding point, thereby performing the welding action.

[0054] Please see Figures 7-9 The drive assembly is provided with multiple sets and is equidistantly installed on the support tray 2 in a circumferential direction. The drive assembly is provided with a connecting rod 7. The drive assembly includes multiple sets of brackets 4 fixedly installed on the support tray 2. The brackets 4 are provided with two sets of parallel guide grooves. Two sets of first guide wheels 8 rotatably installed at the ends of the connecting rods 7 can roll in the guide grooves.

[0055] The guide groove includes a horizontal groove 402 and a vertical groove 403 disposed on the bracket 4. The horizontal groove 402 and the vertical groove 403 are connected and form an "L" shape.

[0056] The drive assembly also includes an electric telescopic rod 5 fixedly installed on the support tray 2 and a side plate 6 connected to the actuating end of the electric telescopic rod 5. A slider 602 is provided on the side plate 6, and the slider 602 can slide in the groove 401 formed on the bracket 4.

[0057] A second guide wheel 9 is connected to the first guide wheel 8, and the second guide wheel 9 can roll in the first inclined groove 601 opened on the side plate 6.

[0058] In this embodiment, since the two sets of guide grooves are in a parallel state, and the two sets of first guide wheels 8 on the connecting rod 7 roll in the two sets of guide grooves respectively, the connecting rod 7 can always remain in a horizontal state when the first guide wheel 8 rolls in the guide groove, so that the elastic rod can remain in a vertical state. When the elastic rod acts on the component, it only generates a vertically downward force, without any component force in other directions, thus avoiding the component from being subjected to a horizontal component force, which would cause the component to slip relative to the circuit board and lead to a decrease in the subsequent soldering effect.

[0059] In the initial state, the first guide wheel 8 is positioned in the horizontal groove 402, away from the vertical groove 403, and the second guide wheel 9 is positioned at the lower end of the first inclined groove 601. At this time, the side plate 6 is at the high end of its stroke, which locks the connecting rod 7 and makes it misaligned with the hysteresis groove 301 in both the horizontal and vertical planes. In this state, when the first feeding assembly, the second feeding assembly, or the receiving assembly moves, there will be no interference with the elastic rod, which would prevent feeding from occurring.

[0060] When the circuit board and components are stacked in the hysteresis groove 301, the electric telescopic rod 5 will activate. At this time, the side plate 6 will move downward, causing the first guide wheel 8 to move along the horizontal groove 402 toward the vertical groove 403. Simultaneously, the second guide wheel 9 moves along the lower end of the first inclined groove 601 toward the upper end. When the first guide wheel 8 moves to the end of the horizontal groove 402 and the second guide wheel 9 moves to the upper end of the first inclined groove 601, the projection of the elastic rod on the horizontal plane is coaxial with the center of the component. Afterward, when the side plate 6 continues to move downward, the first guide wheel 8 will move along the vertical groove 403, thereby driving the elastic rod to act toward the component and apply a certain downward pressure to the component toward the circuit board, ensuring the fit between the two.

[0061] Based on the above configuration, the elastic rod, guided by the horizontal groove 402 and the vertical groove 403, can achieve higher stroke position accuracy. On the one hand, it allows the elastic rod to be misaligned with the component in the horizontal direction to ensure the normal operation of the first feeding assembly, the second feeding assembly, or the receiving assembly. On the other hand, it ensures that the projection of the elastic rod on the horizontal plane is coaxial with the center of the component before the elastic rod acts on the component, ensuring uniform force on the component and maintaining the relative pressure between the component and the circuit board, thus preventing relative displacement between the two. At the same time, the elastic rod can act vertically on the component, preventing the component from being displaced relative to the circuit board due to the horizontal component force, thereby improving the subsequent soldering effect.

[0062] Please see Figures 7-10 The elastic rod is connected to the end of the connecting rod 7 away from the drive assembly. When the drive assembly is activated, the elastic rod can sequentially perform lateral and vertical movements.

[0063] The elastic rod includes a hysteresis sleeve 10 fixedly connected to the connecting rod 7. A pin 11 is slidably installed inside the hysteresis sleeve 10. A first cylindrical spring 12 is sleeved on the pin 11. One end of the first cylindrical spring 12 is connected to the upper end of the pin 11, and the other end is connected to the lower side wall of the hysteresis sleeve 10.

[0064] In this embodiment, the lower end of the ejector pin 11 is provided with a ball bearing, and in the initial state, the first cylindrical spring 12 is in a stretched state. When the connecting rod 7 drives the hysteresis sleeve 10 to move downward, the ejector pin 11 will follow and move downward. During this process, the ejector pin 11 will first abut against the component, so that the first cylindrical spring 12 is further stretched. Under the reaction force provided by the first cylindrical spring 12, the ejector pin 11 will act on the component with a certain downward pressure, ensuring that there is sufficient contact force between the component and the circuit board. This prevents the component and the circuit board from slightly shifting due to start-stop inertia, vibration, and centrifugal force during the step-by-step rotation of the support tray 2 and the circuit board and component, and further improves the subsequent welding effect.

[0065] Please see Figure 7 , Figures 11-12 The follower frame 13 is slidably connected to the abutment 14, and the follower frame 13 is connected to the elastic rod. Specifically, the follower frame 13 is fixedly connected to the hysteresis sleeve 10. Two sets of arc-shaped clamping members 15 are slidably installed on the abutment 14. The arc-shaped clamping members 15 are connected to the pressing structure disposed between the follower frame 13 and the abutment 14. The pressing structure can drive the two sets of arc-shaped clamping members 15 to move closer to each other when the elastic rod abuts against the component and the abutment 14 abuts against the circuit board.

[0066] The inner side of the follower frame 13 is provided with a sliding connection part 1302, the abutment 14 is connected to the sliding connection part 1302, and a second columnar spring 17 is also connected to the abutment 14. The end of the second columnar spring 17 away from the abutment 14 is connected to the follower frame 13.

[0067] Furthermore, the pressing structure includes a sliding part 1501 disposed on the side of the arc-shaped pressing member 15, the sliding part 1501 is provided with a protruding shaft 16 on the side, and the sliding part 1501 is slidably connected to the transverse groove 1401 disposed on the abutting member 14.

[0068] The pressure-blocking structure also includes two sets of second inclined grooves 1301 disposed on the follower frame 13. The convex shaft 16 can slide within the second inclined grooves 1301. The two sets of second inclined grooves 1301 are distributed in a figure-eight shape.

[0069] In this embodiment, initially, the second cylindrical spring 17 is stretched, and the abutment 14 is in contact with the follower frame 13. Simultaneously, the convex shaft 16 is at the lower end of the second inclined groove 1301. In this state, the two sets of arc-shaped clamping members 15 are far apart, and their height is higher than the lower end of the ejector pin 11. When the hysteresis sleeve 10 moves downwards and the ejector pin 11 abuts against the component, the abutment 14 remains separated from the circuit board. However, when the hysteresis sleeve 10 continues to move towards the hysteresis groove 301, the abutment 14 abuts against the circuit board, applying pressure and pressing it into the hysteresis groove 301, thereby improving the connection between the circuit board and the hysteresis groove 301. The contact force of the hysteresis groove 301 prevents the circuit board from moving relative to the hysteresis groove 301. At the same time, the arc-shaped clamping member 15 is located on the side of the component. Subsequently, the hysteresis sleeve 10 will continue to move downward, so that the abutment member 14 can move relative to the follower frame 13. During this process, the convex shaft 16 will move along the length direction of the second inclined groove 1301, so that the two sets of arc-shaped clamping members 15 can move closer to each other and thus hug around the component. This not only has a secondary positioning effect on the component, but also further prevents the component and the circuit board from slightly shifting due to start-stop inertia, vibration, and centrifugal force during the step-by-step rotation of the support tray 2, thus ensuring the subsequent soldering effect.

[0070] It should be noted that when the support tray 2 rotates to the welding station, the arc-shaped clamping member 15 and the ejector pin 11 will move sequentially to separate from the circuit board and components. During this process, when the arc-shaped clamping member 15 separates from the components, the ejector pin 11 is still pressed against the top of the components. The significance of this is that the arc-shaped clamping member 15 plays a positioning and holding effect on the components. However, the contact area between it and the components is also relatively large. If the two are separated directly, the components may be displaced under the action of negative pressure and adsorption force. However, in this application, when the arc-shaped clamping member 15 separates from the components, the ejector pin 11 still abuts against the components, thereby suppressing the possible movement of the components. Moreover, the contact between the ejector pin 11 and the components is a point contact. When the two are separated, the force on the components is very small, which makes the positional accuracy of the components less affected and ensures the subsequent welding accuracy.

[0071] Based on the above configuration, the ejector pin 11, the arc-shaped clamping member 15, and the abutment member 14 can act sequentially on the components and the circuit board, achieving a secondary positioning effect for the components. At the same time, it ensures the clamping force between the components, the circuit board, and the hysteresis groove 301, preventing the circuit board and components from shifting due to start-stop inertia, vibration, and centrifugal force during the step-by-step rotation of the support tray 2, thus ensuring the subsequent welding quality. During separation, the arc-shaped clamping member 15 and the ejector pin 11 will act sequentially, and when the arc-shaped clamping member 15 separates from the component, the ejector pin 11 will still act on the upper part of the component, preventing the component from shifting under negative pressure and adsorption force, further improving the subsequent welding accuracy.

[0072] Please see Figures 1-2 , Figures 4-5 The multi-station coordinated switch circuit board welding equipment further includes: a first feeding component, a second feeding component, and a receiving component.

[0073] The first loading assembly and the second loading assembly are mounted on the frame 1. The first loading assembly and the second loading assembly are respectively used to load circuit boards and components onto the clamping parts 3.

[0074] The first feeding assembly includes a feeding tray 18 and a transfer component 20. A guide frame 19 tangent to the inside of the feeding tray 18 is connected to the feeding tray 18. The guide frame 19 is perpendicular to and communicates with the transfer component 20.

[0075] A first cylinder 21 is fixedly installed at one end of the transfer component 20;

[0076] The first feeding assembly further includes a first gripping structure, which is used to grip the circuit board being transported to the end of the transfer unit 20;

[0077] The receiving assembly is mounted on the frame 1. The receiving assembly includes a second gripping structure and a receiving tray 28. The second gripping structure is used to transfer the soldered circuit boards and components onto the receiving tray 28.

[0078] It should be noted that the first feeding component and the second feeding component have the same structure, and the first gripping structure and the second gripping structure have the same structure. For ease of understanding, we will use the first gripping structure as an example:

[0079] The first gripping structure includes a connecting frame 22 fixedly installed on the frame 1 and a transverse plate 23 slidably installed on the connecting frame 22. The transverse plate 23 is fixedly connected to a third cylinder 25 disposed on the connecting frame 22.

[0080] A lifting plate 26 is slidably mounted on the transverse plate 23. A pneumatic gripper 27 is provided on the lifting plate 26, and the lifting plate 26 is connected to a second cylinder 24 provided on the transverse plate 23.

[0081] It should also be noted that in this embodiment, the first feeding component, the second feeding component, and the receiving component are distributed circumferentially on the outside of the support tray 2, and the first feeding component is used to grab the circuit board and place it on the upper part of the hysteresis groove 301, and the second feeding component is used to grab the components and place them on the upper part of the circuit board.

[0082] For ease of understanding, the action of the first feeding component will be used as an example:

[0083] The circuit board to be soldered is placed in the feeding tray 18. The circuit board can be conveyed to the guide frame 19 and move along the length of the guide frame 19. When the circuit board moves from the guide frame 19 to the transfer piece 20, the first cylinder 21 is activated, pushing the circuit board directly under the pneumatic gripper 27. Then the second cylinder 24 and the third cylinder 25 work together to drive the pneumatic gripper 27 to perform lifting and lateral movements, thereby realizing the transfer of the circuit board.

[0084] The second feeding component operates in the same way as the first feeding component, except that it is mainly used to grab components.

[0085] For the receiving assembly, the combined action of the second cylinder 24 and the third cylinder 25 drives the pneumatic gripper 27 to perform lifting and lateral movements, which enables the transfer of the soldered circuit boards and components to the receiving tray 28.

[0086] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0087] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-station coordinated switching circuit board welding equipment, comprising: A frame is provided with a welding assembly and a support tray. Multiple mounting clamps are detachably mounted on the support tray. The welding assembly is capable of welding circuit boards and components placed on the mounting clamps. Its characteristic is that it further includes: The drive assembly is provided with multiple sets of components that are equidistantly mounted on the support tray in a circumferential direction, and the drive assembly is provided with connecting rods; An elastic rod is connected to the end of the connecting rod away from the drive assembly. When the drive assembly is activated, the elastic rod can sequentially perform lateral and vertical movements. The follower frame and the abutment are slidably connected. The follower frame is connected to the elastic rod. Two sets of arc-shaped clamping parts are slidably installed on the abutment. The arc-shaped clamping parts are connected to the pressing structure disposed between the follower frame and the abutment. The pressing structure can drive the two sets of arc-shaped clamping parts to move closer to each other when the elastic rod abuts against the component and the abutment abuts against the circuit board.

2. The multi-station coordinated switch circuit board welding equipment according to claim 1, characterized in that, The drive assembly includes multiple sets of brackets fixedly mounted on the support tray. The brackets are provided with two sets of parallel guide grooves, and two sets of first guide wheels rotatably mounted on the end of the connecting rod can roll within the guide grooves. The guide groove includes a horizontal groove and a vertical groove disposed on the bracket. The horizontal groove and the vertical groove are connected and form an "L" shape.

3. The multi-station coordinated switch circuit board welding equipment according to claim 2, characterized in that, The drive assembly also includes an electric telescopic rod fixedly mounted on the support tray and a side plate connected to the actuating end of the electric telescopic rod. The side plate is provided with a slider that can slide within a groove formed on the bracket. A second guide wheel is connected to the first guide wheel, and the second guide wheel can roll within a first inclined groove opened on the side plate.

4. The multi-station coordinated switch circuit board welding equipment according to claim 1, characterized in that, The elastic rod includes a hysteresis sleeve fixedly connected to the connecting rod. A pin is slidably installed inside the hysteresis sleeve. A first cylindrical spring is sleeved on the pin. One end of the first cylindrical spring is connected to the upper end of the pin, and the other end is connected to the lower side wall of the hysteresis sleeve.

5. The multi-station coordinated switch circuit board welding equipment according to claim 4, characterized in that, The follower frame is fixedly connected to the hysteresis sleeve; The follower frame has a sliding connection part on its inner side, the abutment is connected to the sliding connection part, and a second columnar spring is also connected to the abutment. The end of the second columnar spring away from the abutment is connected to the follower frame.

6. The multi-station coordinated switch circuit board welding equipment according to claim 1, characterized in that, The pressing structure includes a sliding part disposed on the side of the arc-shaped pressing member, the side of the sliding part is provided with a convex shaft, and the sliding part is slidably connected to a transverse groove disposed on the abutting member; The pressure-blocking structure also includes two sets of second inclined grooves disposed on the follower frame, and the convex shaft can slide within the second inclined grooves.

7. The multi-station coordinated switch circuit board welding equipment according to claim 1, characterized in that, The welding assembly includes a vertical plate and a connecting plate slidably mounted on the vertical plate, the connecting plate being connected to a fourth cylinder disposed on the vertical plate; An arc-shaped connecting plate is fixedly installed on the connecting plate, and two sets of drive frames are rotatably installed on the connecting plate. The end of the drive frame away from its rotation center can slide on the arc-shaped connecting plate, and a welding head is connected to the drive frame.

8. The multi-station coordinated switch circuit board welding equipment according to claim 7, characterized in that, The welding assembly also includes a pressure rod that is slidably connected to the connecting plate. A third columnar spring is sleeved on the pressure rod. One end of the third columnar spring is connected to the end of the pressure rod, and the other end is connected to the connecting plate.

9. The multi-station coordinated switch circuit board welding equipment according to claim 1, characterized in that, Also includes: A first loading assembly and a second loading assembly are mounted on the frame. The first loading assembly and the second loading assembly are respectively used to load circuit boards and components onto the clamping parts. The first feeding component includes a feeding tray and a transfer component. A guide frame tangent to the inside of the feeding tray is connected to the feeding tray. The guide frame is perpendicular to and communicates with the transfer component. A first cylinder is fixedly installed at one end of the transfer unit; The first feeding component further includes a first gripping structure, which is used to grip the circuit board being transported to the end of the transfer component.

10. The multi-station coordinated switch circuit board welding equipment according to claim 1, characterized in that, It also includes a receiving assembly mounted on the frame, the receiving assembly including a second gripping structure and a receiving tray, the second gripping structure being used to transfer the soldered circuit boards and components onto the receiving tray.

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