Ultrasonic welding unit

Abstract

The utility model discloses an ultrasonic welding unit which comprises a lifting shaft fixing seat, and a lifting shaft capable of lifting up and down is arranged on the lifting shaft fixing seat. One end of the unit fixing accessory is rotatably connected with the lifting shaft and is used for lifting up and down along with the lifting shaft; the cylinder fixing seat is rotatably arranged in the vertical direction of the other end of the unit fixing accessory; the welding cylinder is arranged on the cylinder fixing seat; a sliding block capable of sliding up and down through a piston rod of the welding cylinder is arranged on the surface of the welding cylinder; the welding head assembly is arranged on the sliding block, the sliding block arranged on the surface of the welding air cylinder drives the welding head to move up and down, the space needing to be occupied when the sliding block moves is reduced, the overall structure is small and exquisite, and therefore the welding unit can weld products in some narrow spaces. Meanwhile, the lifting shaft fixing base, the unit fixing accessory, the air cylinder fixing base and the welding head assembly can rotate by a certain angle respectively, and therefore the welding head can be adjusted in a multi-direction and multi-angle mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic welding, and in particular relates to an ultrasonic welding unit. Background Art

[0002] Ultrasonic welding is a process in which an ultrasonic generator converts industrial frequency alternating current into high-frequency electrical energy. The converted high-frequency electrical energy is converted again into mechanical motion of the same frequency through a transducer. The mechanical motion is then transmitted to the welding head through a set of amplitude-changing rod devices that can change the amplitude. The welding head transmits the received vibration energy to the joint of the workpiece to be welded. In this area, the vibration energy is converted into heat energy through friction to achieve welding.

[0003] However, the current ultrasonic welding unit has the problem of complex structure and large space occupation, which makes it impossible to perform welding in some smaller spaces; at the same time, the angle during welding cannot be adjusted in multiple directions and angles, which brings many inconveniences to actual use. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and to provide an ultrasonic welding unit which has a simple structure, occupies a small space, can weld in a small space, and can be adjusted in multiple directions.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an ultrasonic welding unit, comprising:

[0006] A lifting shaft fixing seat, wherein the lifting shaft fixing seat has a lifting shaft that can be lifted up and down;

[0007] A unit fixing accessory, one end of which is rotatably connected to the lifting shaft so as to follow the lifting shaft to move up and down;

[0008] A cylinder fixing seat, rotatably arranged in the vertical direction of the other end of the unit fixing attachment;

[0009] A welding cylinder is arranged on the cylinder fixing seat, and the surface of the welding cylinder has a sliding block which can slide up and down by being driven by the piston rod of the welding cylinder;

[0010] The welding head assembly is rotatably arranged on the sliding block to follow the movement of the welding cylinder to weld the product.

[0011] Furthermore, a bayonet is provided on the circumference of the lifting shaft, and a plurality of screw holes are opened on the bayonet. The unit fixing accessory is rotatably arranged in the bayonet by screws adapted to the screw holes, and the rotation angle of the unit fixing accessory is 0° to 80°.

[0012] Furthermore, the welding assembly includes a transducer fixing seat arranged on the welding cylinder, a transducer is installed on the transducer fixing seat, and a welding head is provided on the transducer.

[0013] Furthermore, a displacement sensor is provided on the welding cylinder to sense the downward movement distance of the slider.

[0014] Furthermore, the rotation angle of the cylinder fixing seat in the vertical direction of the unit fixing attachment is 0° to 180°, and the rotation angle of the welding head assembly on the slider is 0° to 180°.

[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0016] The ultrasonic welding unit of the utility model drives the entire welding head to move up and down through the lifting shaft, and drives the welding head to move up and down through the slider arranged on the surface of the welding cylinder, thereby reducing the space required for the movement of the slider. The overall structure is compact, so that the welding unit can weld products in some narrow spaces, and the operation is convenient and labor-saving. In addition, the lifting shaft fixing seat, unit fixing accessories, cylinder fixing seat and welding head assembly can all rotate at certain angles respectively, so that the welding head can be adjusted in multiple directions and angles according to the welding position, meeting the processing needs of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of another embodiment of the utility model;

[0020] Among them: lifting shaft fixing seat 1, lifting shaft 2, unit fixing accessories 3, cylinder fixing seat 4, welding cylinder 5, slider 6, transducer fixing seat 7, transducer 8, welding head 9, displacement sensor 10. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0022] The utility model provides an ultrasonic welding unit to solve the problems that the ultrasonic welding unit in the prior art has a complex overall structure, occupies a large space, cannot be used in a smaller space, and cannot be adjusted in multiple directions and angles.

[0023] For ease of understanding, the specific process in the embodiments of the present application is described below. Figure 1 to Figure 2 An ultrasonic welding unit in an embodiment of the present application includes a lifting shaft fixing seat 1, a lifting shaft 2, a unit fixing accessory 3, a cylinder fixing seat 4, a welding cylinder 5 and a slider 6; the lifting shaft fixing seat 1 has a lifting shaft 2 that can be lifted up and down, and the lifting shaft 2 is driven by a subsequent supporting lifting mechanism to be lifted up and down; one end of the unit fixing accessory 3 is rotatably connected to the lifting shaft 2 to follow the lifting shaft 2 to be lifted up and down; the cylinder fixing seat 4 is rotatably installed in the vertical direction of one end of the unit fixing accessory 3, so that the space occupied by the welding unit in the Z-axis direction can be reduced.

[0024] A welding cylinder 5 is installed on the cylinder fixing seat 4, and a slider 6 is arranged on the surface of the welding cylinder 5 which is parallel to the unit fixing attachment 3, so that when the piston rod of the welding cylinder 5 is extended, the slider 6 is driven to move up and down on the surface of the welding cylinder 5, thereby reducing the space required for the slider 6 to move up and down. The welding head assembly can be rotatably installed on the slider 6 for welding the product.

[0025] In this embodiment, the welding assembly includes a transducer fixing seat 7 installed on the slider 6, a transducer 8 is installed on the transducer fixing seat 7, and a welding head 9 is provided on the transducer. The welding head 9 is driven by the transducer 8 to perform welding.

[0026] based on Figure 1 In this embodiment, the slider 6 is L-shaped, one end of the slider 6 is set on the surface of the welding cylinder, and the other end is connected to the piston rod of the welding cylinder. In this way, when the slider 6 moves to drive the welding head 9 to move downward, the slider 6 moves on the surface of the welding cylinder, thereby reducing the space occupied by the slider when it moves.

[0027] In addition, in this embodiment, a displacement sensor 10 is provided on the side of the welding cylinder 5 for sensing the downward movement distance of the slider 6, so as to control the descending distance of the welding head 9 and prevent it from moving downward beyond a set distance.

[0028] In this embodiment, a bayonet is provided on the circumference of the lifting shaft 2, and the unit fixing accessory 3 is fixed in the bayonet. A plurality of screw holes are opened on the bayonet. The unit fixing accessory 3 is rotatably set in the bayonet by screws adapted to the screw holes. The rotation angle of the unit fixing accessory 3 is 0°~80°. In this way, when the lifting shaft 2 and the unit fixing accessory 3 are connected, the length of the entire mechanism in the Z-axis direction can be further reduced, and the space occupied by the entire unit can be reduced. At the same time, the position of the unit fixing accessory 3 can be rotated to meet the usage requirements in different conditions.

[0029] In this embodiment, the position of the lifting shaft fixing seat 1 can be fixed by rotating 0° to 180° at the position where it needs to be fixed through screws. At the same time, the cylinder fixing seat 4 can be fixed by rotating 0° to 180° in the vertical direction of the unit fixing accessory 3 through multiple screws. The transducer fixing seat 7 in the welding head assembly can be fixed by rotating 0° to 180° on the slider 6 through multiple screws, thereby allowing the position of the welding head to be adjusted at multiple angles.

[0030] During actual work, the supporting lifting mechanism drives the lifting shaft 2 to move up and down, thereby driving the entire welding head 9 to move up and down, and at the same time, the slider 6 arranged on the surface of the welding cylinder 5 is used to drive the welding head 11 to move up and down for welding, which reduces the space occupied when the slider moves down. The overall structure is simple and occupies a small space. The product can be welded by the welding head in a narrow space, and the operation is convenient and labor-saving. At the same time, since the lifting shaft fixing seat 1, the unit fixing accessory 3, the cylinder fixing seat 4 and the welding head assembly can each rotate at a certain angle, the welding head can be adjusted in multiple directions and angles according to the welding position.

[0031] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An ultrasonic welding unit, characterized in that: include: A lifting shaft fixing seat (1), wherein the lifting shaft fixing seat (1) is provided with a lifting shaft (2) capable of being lifted up and down; A unit fixing accessory (3), one end of which is rotatably connected to the lifting shaft (2) so as to follow the lifting shaft (2) to move up and down; A cylinder fixing seat (4) rotatably arranged in a vertical direction at the other end of the unit fixing attachment (3); A welding cylinder (5) is arranged on the cylinder fixing seat (4), and the surface of the welding cylinder (5) has a sliding block (6) which can slide up and down by being driven by a piston rod of the welding cylinder (5); The welding head assembly is rotatably arranged on the slider (6) and is used to follow the welding cylinder (5) to weld the product.

2. The ultrasonic welding unit according to claim 1, characterized in that: A bayonet is provided on the circumference of the lifting shaft (2), and a plurality of screw holes are provided on the bayonet. The unit fixing accessory (3) is rotatably arranged in the bayonet by means of screws adapted to the screw holes, and the rotation angle of the unit fixing accessory (3) is 0° to 80°.

3. The ultrasonic welding unit according to claim 1, characterized in that: The welding head assembly comprises a transducer fixing seat (7) arranged on the welding cylinder (5), a transducer (8) is mounted on the transducer fixing seat (7), and a welding head (9) is provided on the transducer (8).

4. The ultrasonic welding unit according to claim 1, characterized in that: The welding cylinder (5) is provided with a displacement sensor (10) for sensing the downward movement distance of the slider (6).

5. The ultrasonic welding unit according to claim 1, characterized in that: The rotation angle of the cylinder fixing seat (4) in the vertical direction of the unit fixing attachment (3) is 0° to 180°, and the rotation angle of the welding head assembly on the slider (6) is 0° to 180°.

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