Temperature-adjustable ultrasonic welding device

Abstract

The utility model belongs to ultrasonic welding technical field, and disclose a kind of temperature adjustable ultrasonic welding device, including workbench, fixed in the installation arm of workbench back, ultrasonic welding end of liftable setting on installation arm and support table fixed in the top of workbench, the inside of support table is equipped with telescopic moving part.The utility model is by the left and right ends of the to-be-welded piece heat blowing, so that the to-be-welded workpiece is heated by hot air, the temperature inside to-be-welded workpiece rises, and the temperature between rises, start ultrasonic welding end on installation arm, and after moving down, it is in contact with the top of top part, ultrasonic welding processing after auxiliary heating is carried out, when temperature needs to be adjusted, the start number of heating pipe in clamping seat is controlled, temperature adjustment control is completed, realize sufficient preheating treatment before welding, improve subsequent welding temperature rising efficiency, temperature adjustment control can be realized according to actual situation simultaneously.

Description

Technical Field

[0001] This invention belongs to the field of ultrasonic welding technology, specifically a temperature-adjustable ultrasonic welding device. Background Technology

[0002] Ultrasonic welding equipment is an industrial device that uses high-frequency vibration (usually 15kHz-40kHz) to generate frictional heat, causing thermoplastic plastics or certain composite materials to melt and bond at the contact surface. It achieves fast and precise welding through mechanical vibration rather than external heating and is widely used in industries such as electronics, automobiles, medical, and packaging.

[0003] In existing ultrasonic welding devices, although the ultrasonic welding head itself does not generate heat during use, the welding surface needs to generate high temperature to achieve material welding. However, current welding equipment relies solely on the micro-motion of the ultrasonic head. Since the material itself is at a low temperature, the energy required to change from a low temperature state to a high temperature welding state is relatively large. Especially when welding from a low temperature state, the welding speed is still not ideal. External heating is often used to increase the material's own temperature, reduce the energy required for heating, and increase the welding speed. However, the current pre-welding heating mechanism has poor temperature control and low heating uniformity, and its use still has shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a temperature-adjustable ultrasonic welding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temperature-adjustable ultrasonic welding device, comprising a worktable, a mounting arm fixed to the back of the worktable, an ultrasonic welding end that can be raised and lowered and mounted on the mounting arm, and a support platform fixed to the top of the worktable. The support platform has a telescopic moving part inside, and a composite clamping mechanism is symmetrically arranged above the support platform. The telescopic moving part is fixedly connected to the composite clamping mechanism. One end of the support platform is connected to an operating adjustment mechanism, which controls the composite clamping mechanism to clamp the workpiece to be welded. Both ends of the composite clamping mechanism are connected to auxiliary heating mechanisms, and a gas supply assembly connected to the composite clamping mechanism is provided on the side of the worktable.

[0006] The composite clamping mechanism includes a clamping base, heating tubes, and an air outlet slot. The heating tube array is distributed in the clamping base, and the air outlet slot is opened on the front of the clamping base.

[0007] As a preferred embodiment of this utility model, the composite clamping mechanism further includes a connecting port, which communicates with an auxiliary heating mechanism. The auxiliary heating mechanism includes a side arm and an elastic air outlet. The elastic air outlet has a slit in the middle, and the elastic air outlet array is nested on the side arm.

[0008] As a preferred embodiment of this utility model, the telescopic moving part includes a curved arm, an intermediate ring, a spring, and a sleeve cavity. The sleeve cavity is opened inside the support platform. The intermediate ring is fixedly sleeved in the middle of the sleeve cavity. One end of the curved arm is movably sleeved in the sleeve cavity, and the other end of the curved arm is fixedly connected to the composite clamping mechanism. One end of the spring is fixed to the side of the intermediate ring, and the other end of the spring is fixedly connected to the curved arm.

[0009] As a preferred technical solution of this utility model, auxiliary sleeves are provided on both sides of the support platform. The auxiliary sleeves are connected to the sleeve cavity and are sleeved on the outside of the crank arm. The outer side of the intermediate ring is provided with a through hole, which is connected to the sleeve cavity.

[0010] As a preferred technical solution of this utility model, the operating and adjusting mechanism includes a connecting sleeve, a piston plate, an adjusting screw, and a connecting air passage. The connecting sleeve is fixed on the outer side of the support platform, the connecting air passage is opened in the support platform, and the two ends of the connecting air passage are respectively connected to the connecting sleeve and the through hole. The piston plate is movably sleeved in the connecting sleeve, the adjusting screw is threadedly sleeved on the end of the connecting sleeve, and the end of the adjusting screw located inside the connecting sleeve is fixedly connected to the piston plate.

[0011] As a preferred embodiment of this invention, the outer surface of the piston plate is provided with a sealing ring.

[0012] As a preferred embodiment of this utility model, the air supply assembly includes an air pump, a connecting conduit, and an intermediate pipe. The air outlet of the air pump is connected to the intermediate pipe, the intermediate pipe is connected to the connecting conduit, and the connecting conduit is connected to the clamping seat.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1) By activating the air supply component, pressurized air is input into the clamping seat of the composite clamping mechanism through an air pump, and the heating tube in the composite clamping mechanism is activated, so that the air entering the clamping seat is heated to form hot air. The hot air is blown towards the workpiece to be welded on the top of the support platform through the air outlet groove, so that the internal temperature of the workpiece to be welded rises, and some air is introduced into the side arm of the auxiliary heating mechanism. The internal hot air is blown out through the slit on the elastic air outlet end, and through the bending abstraction of the side arm, hot air is blown towards the left and right ends of the workpiece to be welded, so that the workpiece to be welded is heated by hot air around it, and the internal temperature of the workpiece to be welded rises, and the temperature between them rises. The ultrasonic welding end on the mounting arm is activated and moves down to abut against the top of the top component to perform ultrasonic welding treatment after auxiliary heating. When it is necessary to adjust the temperature, the number of heating tubes activated in the clamping seat is controlled to complete the temperature adjustment control, realize the full preheating treatment before welding, improve the subsequent welding heating efficiency, and realize temperature adjustment control according to the actual situation.

[0015] (2) This utility model cleans the workpiece by turning off the heating tube and using the air supply component to remove the welded workpiece and blowing it towards the top of the support platform. This ensures that the top of the support platform is clean and avoids the situation where solid particles cause the subsequent workpieces to be welded to be placed unevenly, thus ensuring the stability of the subsequent welding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the workbench of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the control and adjustment mechanism and support platform of this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the composite clamping mechanism and the telescopic moving part of this utility model;

[0020] Figure 5 This is an exploded view of the auxiliary heating mechanism and the composite clamping mechanism of this utility model.

[0021] In the diagram: 1. Workbench; 2. Mounting arm; 3. Ultrasonic welding end; 4. Support platform; 5. Composite clamping mechanism; 51. Clamping seat; 52. Heating tube; 53. Air outlet; 54. Connecting port; 6. Telescopic moving part; 61. Curved arm; 62. Intermediate ring; 63. Spring; 64. Sleeve cavity; 7. Auxiliary heating mechanism; 71. Side arm; 72. Elastic air outlet; 8. Operating and adjusting mechanism; 81. Connecting sleeve; 82. Piston plate; 83. Adjusting screw; 84. Connecting air passage; 9. Air supply assembly; 91. Air pump; 92. Connecting conduit; 93. Intermediate pipe; 10. Auxiliary sleeve; 11. Through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 5 As shown, this utility model embodiment provides a temperature-adjustable ultrasonic welding device, including a worktable 1, a mounting arm 2 fixed to the back of the worktable 1, an ultrasonic welding end that can be raised and lowered and is mounted on the mounting arm 2, and a support platform 4 fixed to the top of the worktable 1. The support platform 4 has a telescopic moving part 6 inside, and a composite clamping mechanism 5 is symmetrically arranged above the support platform 4. The telescopic moving part 6 is fixedly connected to the composite clamping mechanism 5. One end of the support platform 4 is connected to an operating adjustment mechanism 8, which controls the composite clamping mechanism 5 to clamp the workpiece to be welded. Both ends of the composite clamping mechanism 5 are connected to auxiliary heating mechanisms 7, and the side of the worktable 1 is provided with an air supply component 9 that is connected to the composite clamping mechanism 5. The composite clamping mechanism 5 includes a clamping seat 51, a heating tube 52, and an air outlet slot 53. The heating tube 52 is arrayed in the clamping seat 51, and the air outlet slot 53 is opened on the front of the clamping seat 51.

[0024] The air outlet slot 53 is not sealed when the workpiece is clamped. The actual area of ​​the clamping seat 51 is larger than the side area of ​​the bottom component, ensuring that the hot air is fully blown out and acts on both the bottom and top components at the same time.

[0025] The composite clamping mechanism 5 also includes a connecting port 54, which is connected to the auxiliary heating mechanism 7. The auxiliary heating mechanism 7 includes a side arm 71 and an elastic air outlet 72. The elastic air outlet 72 has a slit in the middle and the elastic air outlet 72 is nested in an array on the side arm 71.

[0026] The composite clamping mechanism 5 provides fixed support for the bottom component of the workpiece to be welded, ensuring stable ultrasonic welding and preventing displacement. At the same time, after clamping and fixing, the workpiece is directly treated with hot air to increase the internal temperature and improve the ultrasonic welding efficiency. The auxiliary heating mechanism 7 further increases the air outlet direction and further treats the left and right sides of the workpiece to be welded with hot air to improve the heating efficiency.

[0027] The telescopic moving part 6 includes a curved arm 61, an intermediate ring 62, a spring 63, and a socket 64. The socket 64 is opened inside the support platform 4. The intermediate ring 62 is fixedly sleeved in the middle of the socket 64. One end of the curved arm 61 is movably sleeved in the socket 64, and the other end of the curved arm 61 is fixedly connected to the composite clamping mechanism 5. One end of the spring 63 is fixed to the side of the intermediate ring 62, and the other end of the spring 63 is fixedly connected to the curved arm 61. Auxiliary sleeves 10 are provided on both sides of the support platform 4. The auxiliary sleeves 10 communicate with the socket 64 and are sleeved on the outside of the curved arm 61. The outer side of the intermediate ring 62 is provided with a through hole 11, which communicates with the socket 64.

[0028] By synchronously moving the curved arm 61 in the telescopic moving part 6 closer and further away, the composite clamping mechanism 5 can move closer and further away respectively, and the workpiece can be clamped and fixed.

[0029] The control and adjustment mechanism 8 includes a connecting sleeve 81, a piston plate 82, an adjusting screw 83, and a connecting air passage 84. The connecting sleeve 81 is fixed on the outer side of the support platform 4. The connecting air passage 84 is opened in the support platform 4, and both ends of the connecting air passage 84 are connected to the connecting sleeve 81 and the through hole 11, respectively. The piston plate 82 is movably sleeved in the connecting sleeve 81. The adjusting screw 83 is threadedly sleeved on the end of the connecting sleeve 81, and one end of the adjusting screw 83 located inside the connecting sleeve 81 is fixedly connected to the piston plate 82. A sealing ring is provided on the outer surface of the piston plate 82.

[0030] By utilizing the two different actions of suction and compression of the control adjustment mechanism 8, the clamping and releasing actions of the telescopic moving part 6 are achieved.

[0031] The air supply component 9 includes an air pump 91, a connecting conduit 92, and an intermediate pipe 93. The air outlet of the air pump 91 is connected to the intermediate pipe 93, the intermediate pipe 93 is connected to the connecting conduit 92, and the connecting conduit 92 is connected to the clamping seat 51.

[0032] The air supply component 9 provides pressurized air and performs hot air treatment and purging cleaning before and after welding, respectively.

[0033] The working principle and usage process of this utility model are as follows: In use, the bottom component to be welded is placed on top of the support platform 4. The adjusting screw 83 in the operating adjustment mechanism 8 is rotated, causing the piston plate 82 to move along the connecting sleeve 81, drawing air from the connecting air passage 84. This allows the air to be further drawn out through the through hole 11 from inside the sleeve cavity 64, reducing the air pressure in the sleeve cavity 64 and establishing an internal and external air pressure difference. This causes the two sets of crank arms 61 to move closer together, driving the composite clamping mechanism 5 to move closer together and clamp the bottom component to the top of the support platform 4. The top component to be welded is then placed on top of the bottom component. The air supply component 9 is activated, and pressurized air is input into the clamping seat 51 of the composite clamping mechanism 5 through the air pump 91. The heating tube 52 in the composite clamping mechanism 5 is also activated, causing the air entering the clamping seat 51 to heat up and form hot air. The hot air is then circulated... Air is blown through the air outlet 53 onto the workpiece to be welded on the top of the support platform 4, causing the internal temperature of the workpiece to rise. Some air is also introduced into the side arm 71 of the auxiliary heating mechanism 7, and the internal hot air is blown out through the slit on the elastic air outlet 72. Through the bending abstraction of the side arm 71, hot air is blown towards the left and right ends of the workpiece to be welded, so that the workpiece to be welded is heated by hot air around it. The internal temperature of the workpiece to be welded rises, and the temperature between the parts also rises. The ultrasonic welding end on the mounting arm 2 is activated and moves down to abut against the top of the top component to perform ultrasonic welding after auxiliary heating. When temperature adjustment is required, the number of heating tubes 52 activated in the clamping seat 51 is controlled to complete the temperature adjustment control. After welding is completed, the heating tubes 52 are turned off, the air supply component 9 is kept ventilated, and the welded workpiece is removed and blown towards the top of the support platform 4 to complete the cleaning process.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature-adjustable ultrasonic welding device, comprising a worktable (1), a mounting arm (2) fixed to the back of the worktable (1), an ultrasonic welding end that is liftable and adjustable and mounted on the mounting arm (2), and a support platform (4) fixed to the top of the worktable (1), characterized in that: The support platform (4) is provided with a telescopic moving part (6) inside. A composite clamping mechanism (5) is symmetrically provided above the support platform (4). The telescopic moving part (6) is fixedly connected to the composite clamping mechanism (5). One end of the support platform (4) is connected to an operating adjustment mechanism (8). The operating adjustment mechanism (8) controls the composite clamping mechanism (5) to clamp the workpiece to be welded. Both ends of the composite clamping mechanism (5) are connected to an auxiliary heating mechanism (7). The side of the workbench (1) is provided with an air supply component (9) connected to the composite clamping mechanism (5). The composite clamping mechanism (5) includes a clamping seat (51), heating tubes (52) and an air outlet groove (53). The heating tubes (52) are arrayed in the clamping seat (51), and the air outlet groove (53) is opened on the front of the clamping seat (51).

2. The temperature-adjustable ultrasonic welding device according to claim 1, characterized in that: The composite clamping mechanism (5) also includes a connecting port (54), which is connected to the auxiliary heating mechanism (7). The auxiliary heating mechanism (7) includes a side arm (71) and an elastic air outlet (72). The elastic air outlet (72) has a slit in the middle, and the elastic air outlet (72) is nested in an array on the side arm (71).

3. The temperature-adjustable ultrasonic welding device according to claim 2, characterized in that: The telescopic moving part (6) includes a curved arm (61), an intermediate ring (62), a spring (63), and a socket (64). The socket (64) is opened inside the support platform (4). The intermediate ring (62) is fixedly sleeved in the middle of the socket (64). One end of the curved arm (61) is movably sleeved in the socket (64), and the other end of the curved arm (61) is fixedly connected to the composite clamping mechanism (5). One end of the spring (63) is fixed to the side of the intermediate ring (62), and the other end of the spring (63) is fixedly connected to the curved arm (61).

4. The temperature-adjustable ultrasonic welding device according to claim 3, characterized in that: The support platform (4) is provided with auxiliary sleeves (10) on both sides. The auxiliary sleeves (10) are connected to the socket (64) and are sleeved on the outside of the crank arm (61). The outer side of the intermediate ring (62) is provided with a through hole (11) which is connected to the socket (64).

5. The temperature-adjustable ultrasonic welding device according to claim 4, characterized in that: The control and adjustment mechanism (8) includes a connecting sleeve (81), a piston plate (82), an adjusting screw (83), and a connecting air passage (84). The connecting sleeve (81) is fixed on the outer side of the support platform (4). The connecting air passage (84) is opened in the support platform (4), and the two ends of the connecting air passage (84) are respectively connected to the connecting sleeve (81) and the through hole (11). The piston plate (82) is movably sleeved in the connecting sleeve (81). The adjusting screw (83) is threadedly sleeved on the end of the connecting sleeve (81), and the end of the adjusting screw (83) located inside the connecting sleeve (81) is fixedly connected to the piston plate (82).

6. The temperature-adjustable ultrasonic welding device according to claim 5, characterized in that: The outer surface of the piston plate (82) is provided with a sealing ring.

7. The temperature-adjustable ultrasonic welding device according to claim 6, characterized in that: The air supply assembly (9) includes an air pump (91), a connecting conduit (92) and an intermediate pipe (93). The air outlet of the air pump (91) is connected to the intermediate pipe (93), the intermediate pipe (93) is connected to the connecting conduit (92), and the connecting conduit (92) is connected to the clamping seat (51).

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