Automatic cooling type ultrasonic welding machine

Abstract

The utility model relates to the field of welding machines, in particular to an automatic cooling type ultrasonic welding machine. The welding machine comprises a machine base, an ultrasonic welding head and a welding head lifting air cylinder, a cylinder body of the welding head lifting air cylinder is fixed to the machine base, a piston rod of the welding head lifting air cylinder is connected to the ultrasonic welding head, a product front end positioning mechanism is installed on the machine base, a first air pipe and a second air pipe are connected to the machine base, and the first air pipe and the second air pipe are both connected to an air receiving mechanism. An electronic proportional valve is installed on an air path of the welding head lifting air cylinder. A product to be welded is positioned through the product front end positioning mechanism. And the gas receiving mechanism is matched with the two gas pipes to cool the ultrasonic welding head or spray nitrogen to the product, so that the product is prevented from being oxidized.

Description

Technical Field

[0001] This utility model relates to the field of welding machines, and in particular to an automatic cooling ultrasonic welding machine. Background Technology

[0002] An ultrasonic welding machine is a device that generates a 20kHz (or 15kHz) high-voltage, high-frequency signal. This signal is converted into high-frequency mechanical vibration by a transducer system and applied to the workpiece. The temperature at the interface rises due to friction between the workpiece surface and molecules. When the temperature reaches the melting point of the workpiece, the interface melts rapidly and fills the gaps between the interfaces. When the vibration stops, the workpiece cools and solidifies under a certain pressure, thus achieving the welding purpose.

[0003] Existing welding machines cannot automatically position the product to be welded, cannot automatically cool the welding head, and cannot automatically spray nitrogen gas onto the product to prevent oxidation. Utility Model Content

[0004] The technical problem this invention aims to solve is: to address the technical problems described in the background art, this invention provides an automatic cooling ultrasonic welding machine. The product to be welded is positioned using a product front-end positioning mechanism. A gas receiving mechanism, in conjunction with two gas pipes, cools the ultrasonic welding head, or nitrogen is sprayed onto the product to prevent oxidation.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An automatic cooling ultrasonic welding machine includes a base, an ultrasonic welding head, and a welding head lifting cylinder. The cylinder body of the welding head lifting cylinder is fixed on the base, and the piston rod of the welding head lifting cylinder is connected to the ultrasonic welding head. A product front-end positioning mechanism is installed on the base. Air pipe one and air pipe two are connected to the base, and both air pipe one and air pipe two are connected to an air receiving mechanism. Two electronic proportional valves are installed in the air circuit of the welding head lifting cylinder.

[0007] Specifically, the ultrasonic welding head is mounted on a lifting base, which is slidably connected to the vertical rail of the machine base, and the piston rod end of the welding head lifting cylinder is connected to the lifting base.

[0008] Specifically, a tension spring connects the lifting seat and the base.

[0009] Specifically, the piston rod end of the welding head lifting cylinder is provided with a fisheye connecting rod, and the crossbar on the lifting seat passes through the fisheye connecting rod.

[0010] Specifically, the product front-end positioning mechanism includes a positioning block lifting cylinder, a horizontal slide cylinder, a connecting seat, a base block, and a positioning block. The cylinder body of the positioning block lifting cylinder is fixed on the machine base, the piston rod of the positioning block lifting cylinder is fixed on the cylinder body of the horizontal slide cylinder, the slide of the horizontal slide cylinder is fixed together with the connecting seat, the connecting seat is slidably connected to the base block through a guide rod, a spring is connected between the connecting seat and the base block, and the base block is connected to the positioning block by screws.

[0011] Specifically, the gas receiving mechanism includes a vortex cooler, a one-way valve, a two-way valve, an intake throttle valve, and a three-way valve. The one-way valve is connected to the vortex cooler, and the one-way valve is connected to the intake throttle valve. Both the one-way valve and the one-way valve are connected to the three-way valve. The gas pipe is connected to the three-way valve. The vortex cooler is connected to an air source, and the intake throttle valve is connected to a nitrogen source.

[0012] The beneficial effects of this utility model are as follows: This utility model provides an automatic cooling ultrasonic welding machine. The product to be welded is positioned using a product front-end positioning mechanism. A gas receiving mechanism, in conjunction with two gas pipes, cools the ultrasonic welding head, or sprays nitrogen gas onto the product to prevent oxidation. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the air receiving mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the product front-end positioning mechanism of this utility model;

[0017] In the diagram: 1. Base; 2. Ultrasonic welding head; 3. Welding head lifting cylinder; 4. Product front-end positioning mechanism; 5. Air...

[0018] 6. Air tube 2, 7. Air receiving mechanism, 8. Lifting seat, 9. Tension spring, 10. Fisheye connecting rod, 41.

[0019] 42. Positioning block lifting cylinder; 43. Horizontal slide cylinder; 44. Connecting seat; 45. Base block; 46. Positioning block.

[0020] 71. Vortex cooler, 72. One-way valve 1, 73. One-way valve 2, 74. Intake throttle valve, 75. Three-way valve. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the air receiving mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the front-end positioning mechanism of the product according to this utility model.

[0024] As attached Figure 1 As shown, an automatic cooling ultrasonic welding machine includes a base 1, an ultrasonic welding head 2, and a welding head lifting cylinder 3. The cylinder body of the welding head lifting cylinder 3 is fixed on the base 1, and the piston rod of the welding head lifting cylinder 3 is connected to the ultrasonic welding head 2. A product front-end positioning mechanism 4 is installed on the base 1. Air pipe 1 5 and air pipe 2 6 are connected to the base 1. Both air pipe 1 5 and air pipe 2 6 are connected to an air receiving mechanism 7. Two electronic proportional valves are installed in the air circuit of the welding head lifting cylinder 3.

[0025] The welding head lifting cylinder 3 precisely controls the downward pressure of the ultrasonic welding head 2 through an electronic proportional valve; at the same time, another electronic proportional valve controls the rigidity of the downward pressure, thereby achieving the required rigidity and flexibility adjustment of the piston rod of the welding head lifting cylinder 3 in different applications.

[0026] The ultrasonic welding head 2 is mounted on the lifting base 8, which is slidably connected to the vertical rail of the base 1. The piston rod end of the welding head lifting cylinder 3 is connected to the lifting base 8. The extension and retraction of the piston rod of the welding head lifting cylinder 3 can drive the ultrasonic welding head 2 to rise and fall along the vertical rail, making the lifting more stable.

[0027] A tension spring 9 connects the lifting seat 8 to the base 1.

[0028] The piston rod end of the welding head lifting cylinder 3 is provided with a fisheye connecting rod 10, and the crossbar on the lifting seat 8 passes through the fisheye connecting rod 10.

[0029] As attached Figure 3 As shown, the product front-end positioning mechanism 4 includes a positioning block lifting cylinder 41, a horizontal slide cylinder 42, a connecting seat 43, a base block 44, and a positioning block 45. The cylinder body of the positioning block lifting cylinder 41 is fixed on the machine base 1, and the piston rod of the positioning block lifting cylinder 41 is fixed on the cylinder body of the horizontal slide cylinder 42. The slide of the horizontal slide cylinder 42 is fixed together with the connecting seat 43. The connecting seat 43 is slidably connected to the base block 44 through a guide rod. A spring is connected between the connecting seat 43 and the base block 44. The base block 44 is connected to the positioning block 45 by screws.

[0030] The positioning block lifting cylinder 41 can drive the positioning block 45 to move vertically, and the horizontal slide cylinder 42 can drive the positioning block 45 to move horizontally. This allows the positioning block 45 to be moved to a preset position. When the product is placed on the positioning block 45, accurate positioning of the product to be welded can be achieved. When the product is placed on the positioning block 45, a spring provides cushioning to prevent hard contact. By installing and removing screws, different positioning blocks 45 can be replaced on the base block 44 to adapt to different products.

[0031] As attached Figure 2 As shown, the air receiving mechanism 7 includes a vortex cooler 71, a one-way valve 72, a two-way valve 73, an intake throttle valve 74, and a three-way valve 75. The one-way valve 72 is connected to the vortex cooler 71, and the two-way valve 73 is connected to the intake throttle valve 74. Both the one-way valve 72 and the two-way valve 73 are connected to the three-way valve 75. The air pipe 5 and the two-way valve 6 are connected to the three-way valve 75. The vortex cooler 71 is connected to an air source, and the intake throttle valve 74 is connected to a nitrogen source.

[0032] When the ultrasonic welding head 2 needs to be cooled, the air is cooled by the eddy current cooler 71 and then passes through the one-way valve 72 and the three-way valve 75. Finally, the air is output to the ultrasonic welding head 2 through the air pipe 5 and the air pipe 6.

[0033] When nitrogen is to be purged onto the product, the nitrogen passes through the inlet throttle valve 74, one-way valve 2 73, and three-way valve 75, and is finally output to the product through air pipe 1 5 and air pipe 2 6 to prevent product oxidation.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic cooling type ultrasonic welding machine comprising a machine base (1), an ultrasonic welding head (2), a welding head lifting cylinder (3), the cylinder body of the welding head lifting cylinder (3) being fixed to the machine base (1), and the piston rod of the welding head lifting cylinder (3) being connected to the ultrasonic welding head (2), characterized in that, The product front end positioning mechanism (4) is installed on the base (1), the air pipe one (5) and the air pipe two (6) are connected on the base (1), the air pipe one (5) and the air pipe two (6) are connected on the air connection mechanism (7), two electronic proportional valves are installed on the air path of the welding head lifting cylinder (3).

2. The automatic cooled ultrasonic welder of claim 1, wherein: The ultrasonic welding head (2) is installed on the lifting seat (8), the lifting seat (8) is slidingly connected on the vertical rail of the base (1), and the piston rod end of the welding head lifting cylinder (3) is connected on the lifting seat (8).

3. The automatic cooled ultrasonic welder of claim 2, wherein: The lifting seat (8) and the base (1) are connected with the tension spring (9).

4. The automatic cooled ultrasonic welder of claim 1, wherein: The piston rod end of the welding head lifting cylinder (3) is provided with the fish eye connecting rod (10), and the cross rod on the lifting seat (8) passes through the fish eye connecting rod (10).

5. The automatic cooled ultrasonic welder of claim 1, wherein: The product front end positioning mechanism (4) comprises a positioning block lifting cylinder (41), a horizontal sliding table cylinder (42), a connecting seat (43), a base block (44) and a positioning block (45), the cylinder body of the positioning block lifting cylinder (41) is fixed on the base (1), the piston rod of the positioning block lifting cylinder (41) is fixed on the cylinder body of the horizontal sliding table cylinder (42), the sliding table of the horizontal sliding table cylinder (42) is fixed with the connecting seat (43), the connecting seat (43) is slidingly connected with the base block (44) through a guide rod, a spring is connected between the connecting seat (43) and the base block (44), and the base block (44) is connected with the positioning block (45) through screws.

6. The automatic cooled ultrasonic welder of claim 1, wherein: The air connection mechanism (7) comprises an eddy current cooler (71), a one-way valve one (72), a one-way valve two (73), an air inlet throttle valve (74) and a three-way pipe (75), the one-way valve one (72) is connected on the eddy current cooler (71), the one-way valve two (73) is connected on the air inlet throttle valve (74), the one-way valve one (72) and the one-way valve two (73) are connected on the three-way pipe (75), the air pipe one (5) and the air pipe two (6) are connected on the three-way pipe (75), the eddy current cooler (71) is connected with an air source, and the air inlet throttle valve (74) is connected with a nitrogen gas source.

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