Ultrasonic rapid welding apparatus for welding clock springs and control method thereof

Abstract

The application relates to the technical field of automobile parts, in particular to an ultrasonic rapid welding device for welding clock springs and a control method thereof, which comprises a base, the top of the base is provided with a movable mounting frame, an adjustable welding device is arranged on the mounting frame, and the device further comprises a supporting frame fixedly installed on the top of the base and a plurality of mounting grooves arranged on the top of the supporting frame. The device is provided with a pressing and binding assembly, which can press the flat cable and the connector connection on one side, so as to reduce the situation that the flat cable is raised, and on the other side, the pressing and binding assembly can press the flat cable again during the returning process after the welding device is welded, so as to increase the pressure time of the flat cable, prolong the bonding time and facilitate firm bonding.

Description

Technical Field

[0001] This invention relates to the field of automotive parts, and more particularly to an ultrasonic rapid welding device for welding clock springs and its control method. Background Technology

[0002] The clock spring, also known as the airbag clock spring, is a connector installed between the steering wheel and the steering column. Its function is to connect the circuitry at the steering column end and the steering wheel end, including the airbag and multi-function buttons.

[0003] In existing technologies, ultrasonic welding is generally used to weld clock springs. However, during the welding process of flat cables and connectors, the ends of the flat cables may warp for various reasons. If the warping is not smoothed out in time, it may lead to an unstable weld during the welding process, ultimately affecting the quality of the weld. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art by proposing an ultrasonic rapid welding device and its control method for welding clock springs.

[0005] In a first aspect, the present invention provides an ultrasonic rapid welding device for welding clock springs, comprising a base, a movable mounting bracket disposed on the top of the base, an adjustable welding device disposed on the mounting bracket, and further comprising:

[0006] A support frame, which is fixedly installed on the top of the base;

[0007] Multiple mounting slots are provided, all located on the top of the support frame;

[0008] The detection unit is used to acquire pressure information;

[0009] Acquisition unit, used to acquire press information;

[0010] A pressure restraint assembly is provided on the top of the support frame, and the number of assemblies corresponds one-to-one with the mounting slots. It is used to press down the end connection of the flat cable.

[0011] The controller, fixedly mounted on the side wall of the mounting bracket, is used to control the downward clamping assembly to press down on the connection between the flat cable and the connector to prevent the end of the flat cable from sticking up; the controller is also used to control the welding device to push the downward clamping assembly to make way on both sides when the welding device moves down to weld, so as to avoid affecting the welding device's welding.

[0012] In this design, the pressure-binding component applies pressure to the connection between the flat cable and the connector. This pressure reduces the likelihood of the flat cable lifting. Furthermore, as the welding assembly moves downwards, the pressure-binding component actively and gradually moves to both sides, allowing the welding device to perform ultrasonic welding on the connection between the flat cable and the connector.

[0013] Preferably, the pressure restraint assembly includes:

[0014] The first electric actuator, the fixing part of the first electric actuator is fixedly installed on the top of the support frame;

[0015] A delivery pipe, which is fixedly installed at the telescopic end of the first electric push rod;

[0016] A U-shaped frame, which is fixedly connected to the end of the conveying pipe;

[0017] Two chutes are provided, one on each of the two side walls of the U-shaped frame;

[0018] Two sliding rods are slidably connected to the side wall of the U-shaped frame, respectively;

[0019] Two baffles are fixedly installed at opposite ends of the two slide rods, respectively.

[0020] Two springs are provided, which are respectively fixedly installed between the baffle and the side wall of the U-shaped frame at corresponding positions, and the springs are sleeved on the outer wall of the slide rod;

[0021] Two elastic elements, the telescopic ends of the two elastic elements are respectively fixedly connected to the outer walls of the two slide rods;

[0022] Two vertical columns are fixedly connected to two elastic rods respectively, and the two vertical columns are located inside two sliding grooves respectively;

[0023] There are two roller seats, and the two roller seats are respectively fixedly connected to the lower ends of the two vertical columns;

[0024] There are two roller press cylinders, and the two roller press cylinders are rotatably connected to the two roller seats respectively through rotating shafts;

[0025] There are two cylinders, which are fixedly installed on the side wall of the U-shaped frame. The telescopic ends of the two cylinders are slidably connected to connecting plates, and the connecting plates are fixedly connected to the vertical columns at the corresponding positions.

[0026] Preferred options also include:

[0027] Two irregularly shaped grooves are provided, and the two irregularly shaped grooves are respectively provided inside the two sliding grooves;

[0028] Two sliding pillars, each of which is slidably connected to one of the two irregular grooves;

[0029] The irregular groove consists of a horizontal groove and an inclined groove. As the two sliding columns approach each other, they first slide inside the inclined groove. After sliding into the inclined groove, the vertical column moves downward under the guidance of the inclined groove and compresses the elastic element to make room. At this time, the position of the roller cylinder gradually moves towards the flat cable. After the sliding column slides from the inside of the inclined groove to the inside of the horizontal groove, the position of the roller cylinder after moving down is just enough to press and position the flat cable. At this time, the roller cylinder has moved above the flat cable and is a certain distance away from the edge of the flat cable, so that a certain space is reserved at the edge. This helps to avoid the roller cylinder contacting the flat cable during the return process, thus preventing damage to the flat cable after welding.

[0030] Preferred options also include:

[0031] Two gears are fixedly mounted on the rotating shaft, and the gears are located outside the roller seat;

[0032] Two torsion springs are provided, which are respectively fixedly installed between the gear and the side wall of the roller seat at corresponding positions;

[0033] Two second electric actuators are provided, and the fixed parts of both second electric actuators are fixedly connected to the U-shaped frame. The telescopic ends of both second electric actuators are fixedly connected to racks.

[0034] Preferred options also include:

[0035] A negative pressure chamber is located inside the support frame;

[0036] Multiple negative suction holes are provided, all of which are located inside the mounting groove and communicate with the negative pressure chamber.

[0037] A negative pressure pump is fixedly installed inside the negative pressure chamber.

[0038] Preferred options also include:

[0039] A telescopic tube, one end of which is fixedly connected to the air outlet of the negative pressure pump, and the other end of which is fixedly connected to the delivery tube;

[0040] The spray cavity is located inside the baffle.

[0041] An air supply pipe, one end of which is fixedly connected to the U-shaped frame, and the other end of which is fixedly connected to the spray chamber;

[0042] Multiple spray nozzles are provided, each located at the bottom of the baffle at a corresponding position.

[0043] Preferably, the detection unit includes a pressure sensor, which is fixedly connected to the side wall of the baffle, and the acquisition unit is specifically a press switch, which is fixedly installed on the base.

[0044] Secondly, a control method for an ultrasonic rapid welding device for welding clock springs is provided, the control method comprising the following steps:

[0045] The controller generates first control information and second control information based on the pressing information obtained by the pressing unit;

[0046] The controller first sends the first control information to the cylinder to control the cylinder to start and push out, so that the two vertical columns move closer to each other;

[0047] The controller then sends the second control information to the first electric actuator to control the first electric actuator to start retraction, thereby driving the U-shaped frame to move downward.

[0048] Preferred options also include:

[0049] The controller also generates third and fourth control information based on the pressure information obtained by the detection unit;

[0050] The controller sends the third control information to the cylinder to control the cylinder to start retracting, thereby driving the vertical column back to its original position;

[0051] The controller sends the fourth control information to the first electric push rod to control the first electric push rod to start pushing out, thereby driving the U-shaped frame to move upward.

[0052] Preferred options also include:

[0053] The controller generates a fifth control information at the same time as generating the third and fourth control information;

[0054] The controller sends the fifth control information to the second electric actuator to control the second electric actuator to start retracting or extending according to the actual predetermined settings.

[0055] Compared with the prior art, the present invention has the following beneficial effects:

[0056] 1. This invention, through the setting of the pressure-binding component, firstly, applies downward pressure to the connection between the flat cable and the connector, thereby reducing the possibility of the flat cable lifting. Secondly, as the welding component moves downward, the pressure-binding component actively and gradually moves to both sides to avoid the welding device, allowing the welding device to perform ultrasonic welding on the connection between the flat cable and the connector. Because the pressure-binding component gradually avoids the welding device, and during the welding device's return process after welding, the pressure-binding component will apply downward pressure to the flat cable again, thereby increasing the pressure time on the flat cable and extending the bonding time to ensure a firm bond.

[0057] 2. The present invention uses rollers to help smooth the flat cable as they move away from each other, thus maintaining the cable's tautness and facilitating welding by the subsequent welding device.

[0058] 3. The present invention uses a torsion spring. The release of the spring force by the torsion spring will drive the rotating shaft to rotate, which will cause the roller to rotate outward and apply an outward force to the flat cable. Thus, the two rollers apply an outward force to the flat cable, which is beneficial to straightening the flat cable. Attached Figure Description

[0059] Figure 1 This is a schematic diagram of the control method of the present invention.

[0060] Figure 2 This is a schematic diagram of the overall structure of the welding equipment of the present invention. Figure 1 .

[0061] Figure 3 This is a schematic diagram of the overall structure of the welding equipment of the present invention. Figure 2 .

[0062] Figure 4 This is a schematic diagram of the connection between the support frame and the first electric actuator of the present invention.

[0063] Figure 5 This is a schematic diagram of the structure of the present invention along the cross-section of the support frame.

[0064] Figure 6 This is a schematic diagram of the connection between the delivery pipe and the U-shaped frame of the present invention. Figure 1 .

[0065] Figure 7 This is a schematic diagram of the connection between the delivery pipe and the U-shaped frame of the present invention. Figure 2 .

[0066] Figure 8 For the present invention Figure 7 A magnified structural diagram of point A in the middle.

[0067] Figure 9 For the present invention Figure 7 A magnified structural diagram at point B in the middle.

[0068] Figure 10 This is a schematic diagram of the structure at the connection between the support frame and the first electric actuator of the present invention. Figure 2 .

[0069] Figure 11 For the present invention Figure 10 A magnified structural diagram at point C.

[0070] In the diagram: 1. Base; 2. Mounting frame; 3. Support frame; 4. Mounting groove; 5. First electric actuator; 6. Conveying pipe; 7. U-shaped frame; 8. Slide groove; 9. Slide rod; 10. Baffle; 11. Spring; 12. Elastic element; 13. Vertical column; 14. Roller seat; 15. Roller cylinder; 16. Cylinder; 17. Irregular groove; 18. Slide rod; 19. Gear; 20. Torsion spring; 21. Second electric actuator; 22. Rack; 23. Negative pressure chamber; 24. Negative suction hole; 25. Negative pressure pump; 26. Telescopic pipe; 27. Spray chamber; 28. Air supply pipe; 29. ​​Spray hole; 30. Pressure sensor; 31. Press switch; 32. Connecting plate; 33. Controller. Detailed Implementation

[0071] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0072] Application scenario: In existing technologies, ultrasonic welding is generally used to weld clock springs. However, during the welding process of flat cables and connectors, the ends of the flat cables may warp for various reasons. If the warping is not smoothed out in time, it may lead to an unstable weld during the welding process, ultimately affecting the quality of the weld.

[0073] like Figures 2 to 11 The ultrasonic rapid welding equipment for welding clock springs, as shown, includes a base 1, a movable mounting bracket 2 on the top of the base 1, an adjustable welding device on the mounting bracket 2, and further includes:

[0074] Support frame 3 is fixedly installed on the top of base 1;

[0075] The mounting slot 4 has multiple slots, all of which are located on the top of the support frame 3;

[0076] The detection unit is used to acquire pressure information;

[0077] Acquisition unit, used to acquire press information;

[0078] The pressure restraint assembly is located on the top of the support frame 3, and the number of them corresponds one-to-one with the mounting slots 4. It is used to press down the end connection of the flat cable.

[0079] The controller 33 is fixedly installed on the side wall of the mounting bracket 2 and is used to control the pressure restraint assembly to press down on the connection between the flat cable and the connector to prevent the end of the flat cable from sticking up; the controller 33 is also used to control the welding device to push the pressure restraint assembly to the sides to make way when the welding device moves down to weld, so as to avoid affecting the welding device.

[0080] Specifically, the operator first places the flat cable and connector to be welded into the mounting slot 4. Then, the operator presses the acquisition unit so that the controller 33 can obtain the pressing information to indicate that the preparation work is complete. The controller 33 first controls the pressing and binding assembly to press down on the connection between the flat cable and the connector. The pressing and binding assembly applies downward pressure to the side surface of the flat cable to help reduce the flat cable from lifting up.

[0081] Subsequently, the controller 33 controls the welding device to move downward. During the downward movement of the welding component, it will come into contact with the pressure restraint component, thereby enabling the detection unit to obtain pressure information. At this time, as the welding component moves downward, the pressure restraint component will actively and gradually move to both sides to avoid the welding device, so that the welding device can perform ultrasonic welding on the connection between the flat cable and the connector. Because the pressure restraint component moves to avoid the flat cable from suddenly detaching and causing it to spring back and curl up, the pressure restraint component will press down on the flat cable again during the welding process of the welding device. This will increase the pressure time on the flat cable and extend the bonding time, thus promoting a firm bond.

[0082] It should be further explained that the welding device is composed of existing components such as welding heads, connectors, and hydraulic cylinders, which will not be elaborated on here.

[0083] As a further embodiment, the pressure restraint assembly includes:

[0084] The first electric actuator 5, the fixing part of the first electric actuator 5 is fixedly installed on the top of the support frame 3;

[0085] The conveying pipe 6 is fixedly installed at the telescopic end of the first electric push rod 5;

[0086] U-shaped frame 7, which is fixedly connected to the end of the conveying pipe 6;

[0087] There are two chutes 8, one on each side wall of the U-shaped frame 7;

[0088] Two sliding rods 9 are slidably connected to the side wall of the U-shaped frame 7 respectively;

[0089] Two baffles 10 are fixedly installed at opposite ends of two sliding rods 9;

[0090] Two springs 11 are provided, which are fixedly installed between the baffle 10 and the side wall of the U-shaped frame 7 at corresponding positions, and the springs 11 are sleeved on the outer wall of the slide rod 9.

[0091] Two elastic elements 12, the telescopic ends of the two elastic elements 12 are respectively fixedly connected to the outer walls of the two slide rods 9;

[0092] Two vertical columns 13 are fixedly connected to two elastic elements 12 respectively, and the two vertical columns 13 are located inside the two sliding grooves 8 respectively;

[0093] There are two roller seats 14, and the two roller seats 14 are respectively fixedly connected to the lower ends of the two vertical columns 13;

[0094] There are two roller press cylinders 15, and the two roller press cylinders 15 are rotatably connected to the two roller seats 14 respectively through rotating shafts;

[0095] There are two cylinders 16, which are fixedly installed on the side wall of the U-shaped frame 7. The telescopic ends of the two cylinders 16 are slidably connected to the connecting plates 32, and the connecting plates 32 are fixedly connected to the vertical columns 13 at the corresponding positions.

[0096] Specifically, the controller 33 first controls the two cylinders 16 to start and push out synchronously. The cylinders 16 push the vertical columns 13 closer to each other. The two vertical columns 13 drive the two sliding rods 9 closer to each other. The two sliding rods 9 drive the two baffles 10 closer to each other. At the same time, the two vertical columns 13 also drive the two roller seats 14 closer to each other. The two roller seats 14 drive the two roller pressing cylinders 15 closer to each other, so that the roller pressing cylinders 15 move to the top center of the flat cable. On the one hand, this is conducive to pressing the flat cable down later. On the other hand, it is conducive to not contacting the flat cable during the subsequent return.

[0097] Subsequently, the controller 33 controls the first electric push rod 5 to start working. The first electric push rod 5 drives the conveying pipe 6 to move downward, the conveying pipe 6 drives the U-shaped frame 7 to move downward, the U-shaped frame 7 drives the vertical column 13 to move downward through the slide rod 9 and the elastic element 12, and the vertical column 13 drives the roller pressing cylinder 15 to move downward through the roller seat 14, so that the roller pressing cylinder 15 presses the flat cable. By pressing down on the end of the flat cable, it is helpful to avoid the end of the flat cable from sticking up.

[0098] After the welding assembly moves downward and contacts the baffle 10, the detection unit will obtain pressure information, and then the controller 33 will control the cylinder 16 to start working again. The cylinder 16 drives the vertical column 13 to move. The vertical column 13 drives the baffle 10 to move away from each other through the slide rod 9 to make way, so as to facilitate the welding device to quickly weld the flat cable. The movement of the vertical column 13 will drive the roller seat 14 to move. The movement of the roller seat 14 will drive the roller pressure cylinder 15 to move away from each other. During the process of the roller pressure cylinder 15 moving away from each other, it is also beneficial to pull the flat cable to both sides, so that the flat cable is straightened during the process of the two roller pressure cylinders 15 moving away from each other. This is also beneficial to prevent the end of the flat cable from sticking up, and it is also beneficial to the welding device to perform ultrasonic welding on the flat cable, which is beneficial to improve the welding success rate.

[0099] After the welding device completes the welding, the cylinder 16 pushes the vertical column 13 at the corresponding position closer to each other, so that the vertical column 13 drives the roller pressure cylinder 15 to press down on the flat cable after welding through the roller seat 14. By increasing the pressure time on the flat cable, the bonding time is increased, which is conducive to a firm bond.

[0100] As an optional embodiment, the elastic element 12 is specifically an elastic telescopic rod.

[0101] As a further implementation method, it also includes:

[0102] There are two irregular grooves 17, which are respectively opened inside the two sliding grooves 8;

[0103] Two sliding columns 18, one end of each sliding column 18 is slidably connected to the vertical column 13 and respectively to two irregular grooves 17;

[0104] Specifically, as mentioned in the above embodiment, the sides of the flat cable are compacted, pulled and smoothed by two rollers 15. However, the flat cable may move during the return process of the rollers 15, which may damage the welding between the flat cable and the connector.

[0105] Therefore, the above problems are solved by setting the irregular groove 17. The irregular groove 17 is composed of a horizontal groove and an inclined groove. During the process of the two sliding columns 18 approaching each other, the two sliding columns 18 first slide inside the inclined groove. After the sliding column 18 slides into the inside of the inclined groove, it will drive the vertical column 13 to move downward and compress the elastic element 12 to make room. At this time, the position of the roller cylinder 15 gradually moves towards the direction of the flat cable, so that after the sliding column 18 slides from the inside of the inclined groove to the inside of the horizontal groove, the position of the roller cylinder 15 after moving down is just able to press down and position the flat cable. At this time, the roller cylinder 15 has moved to the top of the flat cable and is at a certain distance from the edge of the flat cable, so that a certain space is reserved at the edge, which helps to avoid the roller cylinder 15 contacting the flat cable during the return process, thereby causing damage to the flat cable after welding.

[0106] As the two sliding columns 18 begin to move away from each other, they first slide inside the transverse groove, causing the roller cylinder 15 to slide on top of the flat cable. During this process of moving away from each other, the two roller cylinders 15 still help to smooth the flat cable, maintaining its taut state, which is beneficial for subsequent welding. When the sliding column 18 moves to the connection between the transverse groove and the inclined groove, the roller cylinder 15 is still on top of the flat cable. Therefore, after the sliding column 18 enters the inclined groove, it begins to move upward under the guidance of the inclined groove, causing the roller cylinder 15 to detach from the flat cable. By allowing the roller cylinder 15 to detach from the flat cable in advance, it is beneficial to avoid contact with the flat cable during the subsequent return process of the roller cylinder 15.

[0107] It should be further explained that the working process of the roller press 15 is as follows:

[0108] They move closer together, so that they move to the top of the flat cable near the center, and then move downwards to press down on the top of the flat cable near the center.

[0109] They move away from each other because the pressing position of the roller 15 is near the center of the top of the flat cable. Therefore, during the return process, the roller 15 may move on the top of the flat cable first. During the movement, the two rollers 15 will apply an outward pulling force to keep the flat cable straight.

[0110] As they move closer to each other, the two rollers 15 will move to their initial positions and then stop moving towards the top center of the flat cable. After moving to their initial positions, they will press down to maintain pressure on the welded flat cable.

[0111] As a further implementation method, it includes:

[0112] Two gears 19 are fixedly mounted on the rotating shaft, and the gears 19 are located outside the roller seat 14;

[0113] Two torsion springs 20 are provided, and are respectively fixedly installed between the gear 19 and the side wall of the roller seat 14 at corresponding positions;

[0114] Two second electric actuators 21, the fixed parts of the two second electric actuators 21 are fixedly connected to the U-shaped frame 7, and the telescopic ends of the two second electric actuators 21 are fixedly connected to racks 22;

[0115] Specifically, as mentioned in the above embodiment, the flat cable is pulled as the two rollers 15 move away from each other so that the flat cable remains taut. However, there is no outward force during the movement of the two rollers 15, which may result in the pulling effect not being as expected.

[0116] Therefore, by controlling the second electric actuator 21 to push the rack 22 to move, the rack 22 is always able to mesh with the gear 19. As the shaft moves, the gear 19 will move. Since the lateral position of the second rack 22 remains unchanged, the gear 19 will rotate after contacting the rack 22 during its movement. The gear 19 will drive the shaft to rotate, and the shaft will drive the roller cylinder 15 to rotate, causing the torsion spring 20 to store force. Then, after the roller cylinder 15 contacts the flat cable, the torsion spring 20 releases its spring force and pushes the shaft to rotate, which in turn causes the roller cylinder 15 to rotate outward and apply an outward force to the flat cable. Thus, the two roller cylinders 15 apply an outward force to the flat cable, which is beneficial for straightening the flat cable.

[0117] Furthermore, as the roller cylinder 15 moves outward, the torsion spring 20 maintains its stored force, which helps to continuously apply force to the flat cable and maintain its taut state.

[0118] As a further implementation method, it also includes:

[0119] Negative pressure chamber 23 is located inside support frame 3;

[0120] Multiple negative suction holes 24 are provided, and all negative suction holes 24 are opened inside the mounting groove 4 and are connected to the negative pressure chamber 23.

[0121] The negative pressure pump 25 is fixedly installed inside the negative pressure chamber 23;

[0122] Specifically, by turning on the negative pressure pump 25, the air inside the negative pressure chamber 23 is extracted to create a negative pressure space, which then adsorbs and fixes the end of the flat cable through the negative suction hole 24, making it easier for the flat cable to fit snugly against the connector and reducing the occurrence of the flat cable springing up.

[0123] As a further implementation method, it also includes:

[0124] Telescopic pipe 26, one end of which is fixedly connected to the air outlet of negative pressure pump 25, and the other end of which is fixedly connected to delivery pipe 6;

[0125] The spray chamber 27 is located inside the baffle 10;

[0126] The gas supply pipe 28 has one end fixedly connected to the U-shaped frame 7 and the other end fixedly connected to the spray chamber 27.

[0127] Multiple nozzles 29 are provided, each located at the bottom of the corresponding baffle 10.

[0128] Specifically, the negative pressure pump 25 draws air into the delivery pipe 6 through the telescopic pipe 26, then into the U-shaped frame 7 through the delivery pipe 6, then into the spray chamber 27 through the air supply pipe 28, and finally sprays it downward through the spray hole 29. The circulating flow of gas has three advantages: first, it helps to limit and fix the flat cable in conjunction with the negative suction hole 24; second, the air jet hole helps to blow away impurities at the connection point to reduce the impact of impurities on welding; and third, the circulating flow of gas helps the flat cable to solidify quickly after welding, thereby enhancing the welding effect.

[0129] As a further embodiment, the detection unit includes a pressure sensor 30, which is fixedly connected to the side wall of the baffle 10, and the acquisition unit is specifically a press switch 31, which is fixedly installed on the base 1.

[0130] Specifically, pressure information is obtained through pressure sensor 30; after the preparation work is completed, press the press switch 31 to proceed with the subsequent work.

[0131] like Figure 1 The control method shown is a control method for an ultrasonic rapid welding device for welding clock springs, which includes the following steps:

[0132] The controller 33 generates first control information and second control information based on the pressing information obtained by the pressing unit;

[0133] The controller 33 first sends the first control information to the cylinder 16 to control the cylinder 16 to start and push out, so that the two vertical columns 13 move closer to each other;

[0134] The controller 33 then sends the second control information to the first electric push rod 5 to control the first electric push rod 5 to start retraction, thereby driving the U-shaped frame 7 to move downward.

[0135] As a further implementation method, it also includes:

[0136] The controller 33 also generates third and fourth control information based on the pressure information obtained by the detection unit;

[0137] The controller 33 sends the third control information to the cylinder 16 to control the cylinder 16 to start retraction, thereby driving the vertical column 13 back to its original position;

[0138] The controller 33 sends the fourth control information to the first electric push rod 5 to control the first electric push rod 5 to start pushing out, so as to drive the U-shaped frame 7 to move upward.

[0139] As a further implementation method, it also includes:

[0140] Controller 33 generates fifth control information while generating third and fourth control information;

[0141] The controller 33 sends the fifth control information to the second electric actuator 21 to control the second electric actuator 21 to start retracting or extending according to the actual predetermined settings.

[0142] Working principle of this invention:

[0143] The operator first places the flat cable and connector to be welded into the mounting slot 4. Then, the operator presses the acquisition unit so that the controller 33 can obtain the pressing information to indicate that the preparation work is complete. The controller 33 first controls the pressing and binding assembly to press down on the connection between the flat cable and the connector. The pressing and binding assembly applies downward pressure to the side surface of the flat cable to help reduce the flat cable from lifting up.

[0144] Subsequently, the controller 33 controls the welding device to move downward. During the downward movement of the welding component, it will come into contact with the pressure restraint component, thereby enabling the detection unit to obtain pressure information. At this time, as the welding component moves downward, the pressure restraint component will actively and gradually move to both sides to avoid the welding device, so that the welding device can perform ultrasonic welding on the connection between the flat cable and the connector. Because the pressure restraint component moves to avoid the flat cable from suddenly detaching and causing it to spring back and curl up, the pressure restraint component will press down on the flat cable again during the welding process of the welding device. This will increase the pressure time on the flat cable and extend the bonding time, thus promoting a firm bond.

[0145] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An ultrasonic rapid welding device for welding clock springs, comprising a base (1), wherein a movable mounting frame (2) is provided on the top of the base (1), and an adjustable welding device is provided on the mounting frame (2), characterized in that, Also includes: A support frame (3) is fixedly installed on the top of the base (1); The mounting slots (4) are provided in multiple locations, all located on the top of the support frame (3); The detection unit is used to acquire pressure information; The acquisition unit is used to acquire press information; The pressure restraint assembly is set on the top of the support frame (3), and the number corresponds one-to-one with the mounting slot (4), and is used to press down the end connection of the flat cable; The controller (33) is fixedly installed on the side wall of the mounting bracket (2) and is used to control the pressing and restraining assembly to press down on the connection between the flat cable and the connector to avoid the end of the flat cable from sticking up; the controller (33) is also used to control the welding device to push the pressing and restraining assembly to make way on both sides when the welding device moves down to weld, so as to avoid affecting the welding device. The downward restraint assembly includes: The first electric actuator (5) is fixedly installed on the top of the support frame (3); The conveying pipe (6) is fixedly installed at the telescopic end of the first electric push rod (5); U-shaped frame (7), the U-shaped frame (7) is fixedly connected to the end of the conveying pipe (6); Two chutes (8) are provided, one on each side wall of the U-shaped frame (7); Two sliding rods (9) are slidably connected to the side wall of the U-shaped frame (7); Two baffles (10) are fixedly installed at opposite ends of the two slide bars (9); Two springs (11) are provided, which are respectively fixedly installed between the baffle (10) and the side wall of the U-shaped frame (7) at the corresponding positions, and the springs (11) are sleeved on the outer wall of the slide rod (9); Two elastic elements (12), the telescopic ends of the two elastic elements (12) are respectively fixedly connected to the outer walls of the two slide rods (9); Two vertical columns (13) are fixedly connected to two elastic elements (12) respectively, and the two vertical columns (13) are located inside two sliding grooves (8) respectively; There are two roller seats (14), and the two roller seats (14) are respectively fixedly connected to the lower ends of the two vertical columns (13); There are two rollers (15), and the two rollers (15) are rotatably connected to the two roller seats (14) respectively through a rotating shaft; There are two cylinders (16), which are fixedly installed on the side wall of the U-shaped frame (7). The telescopic ends of the two cylinders (16) are slidably connected to the connecting plate (32), and the connecting plate (32) is fixedly connected to the vertical column (13) at the corresponding position.

2. The ultrasonic rapid welding equipment for welding clock springs according to claim 1, characterized in that, Also includes: There are two irregular grooves (17), and the two irregular grooves (17) are respectively opened inside the two sliding grooves (8); Two sliding pillars (18) are slidably connected to the two irregular grooves (17) respectively.

3. The ultrasonic rapid welding equipment for welding clock springs according to claim 1, characterized in that, Also includes: Two gears (19) are fixedly mounted on the rotating shaft, and the gears (19) are located outside the roller seat (14); Two torsion springs (20) are provided and are respectively fixedly installed between the gear (19) and the side wall of the roller seat (14) at corresponding positions; Two second electric actuators (21) are fixedly connected to the U-shaped frame (7) at their fixed parts, and racks (22) are fixedly connected to the telescopic ends of the two second electric actuators (21).

4. The ultrasonic rapid welding equipment for welding clock springs according to claim 1, characterized in that, Also includes: The negative pressure chamber (23) is located inside the support frame (3); Multiple negative suction holes (24) are provided, and all of the negative suction holes (24) are opened inside the mounting groove (4) and communicate with the negative pressure chamber (23); The negative pressure pump (25) is fixedly installed inside the negative pressure chamber (23).

5. The ultrasonic rapid welding equipment for welding clock springs according to claim 4, characterized in that, Also includes: Telescopic pipe (26), one end of which is fixedly connected to the air outlet of the negative pressure pump (25), and the other end of which is fixedly connected to the conveying pipe (6); The spray cavity (27) is located inside the baffle (10); An air supply pipe (28) is provided, one end of which is fixedly connected to the U-shaped frame (7), and the other end of which is fixedly connected to the spray chamber (27). Multiple nozzles (29) are provided, all located at the bottom of the baffle (10) at corresponding positions.

6. The ultrasonic rapid welding equipment for welding clock springs according to claim 5, characterized in that, The detection unit includes a pressure sensor (30), which is fixedly connected to the side wall of the baffle (10). The acquisition unit is specifically a press switch (31), which is fixedly installed on the base (1).

7. A control method for an ultrasonic rapid welding device for welding clock springs, applicable to the ultrasonic rapid welding device for welding clock springs as described in any one of claims 3 to 6, characterized in that, The control method includes the following steps: The controller (33) generates first control information and second control information based on the pressing information obtained by the pressing unit; The controller (33) first sends the first control information to the cylinder (16) to control the cylinder (16) to start and push out, so that the two vertical columns (13) move closer to each other; The controller (33) then sends the second control information to the first electric push rod (5) to control the first electric push rod (5) to start retraction, so as to drive the U-shaped frame (7) to move downward.

8. The control method of an ultrasonic rapid welding device for welding clock springs according to claim 7, characterized in that, Also includes: The controller (33) also generates third and fourth control information based on the pressure information obtained by the detection unit; The controller (33) sends the third control information to the cylinder (16) to control the cylinder (16) to start retraction, so as to drive the vertical column (13) back to its original position; The controller (33) sends the fourth control information to the first electric push rod (5) to control the first electric push rod (5) to start pushing out, so as to drive the U-shaped frame (7) to move upward.

9. The control method of an ultrasonic rapid welding device for welding clock springs according to claim 7, characterized in that, Also includes: The controller (33) generates a fifth control information at the same time as generating the third and fourth control information; The controller (33) sends the fifth control information to the second electric actuator (21) to control the second electric actuator (21) to start retraction or extension according to the actual predetermined settings.

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