Ultrasonic welding equipment

Abstract

The utility model relates to ultrasonic welding equipment which is used for welding an air outlet rear panel and a decorative strip welding piece. The ultrasonic welding equipment comprises a base, a tire film fixedly arranged on the base and used for containing a panel on the rear portion of the air outlet, an ultrasonic generator used for providing ultrasonic waves and an ultrasonic welding head arranged above the tire film and electrically connected with the ultrasonic generator, and the bottom of the ultrasonic welding head is connected with the decoration strip welding piece. And the positioning device is used for positioning the decorative strip welding piece and conveying the decorative strip welding piece to a to-be-welded area. Compared with the prior art, the ultrasonic welding head not only has an ultrasonic welding function, but also has a function of positioning a small-size plastic part, solves the problems that a welding decorative strip is small and no space is used as a positioning structure, and greatly improves the overall quality and the market competitiveness of a product.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts manufacturing technology, and relates to an ultrasonic welding device, specifically an ultrasonic welding device for welding small trim strips to the welding area of ​​the rear panel of the air vent. Background Technology

[0002] When assembling multiple automotive plastic parts, it is sometimes necessary to weld small plastic parts to the welding areas of other parts to ensure precise gap dimensions between structural components and avoid affecting the overall surface finish of the product assembly. Traditional automotive plastic parts welding methods often employ hot riveting and hot plate welding. Hot riveting typically requires large riveting holes in the plastic part, which can severely impact the appearance and overall structural strength of small-sized parts. Hot plate welding requires a large contact area to transfer heat, which may be impossible due to space constraints for small-sized parts. When welding small-sized plastic parts using traditional welding methods, there is insufficient space to add positioning structures, and it is difficult to meet appearance requirements, making the aforementioned welding processes unsuitable. Therefore, it is necessary to propose a welding equipment suitable for small-sized automotive plastic parts. Utility Model Content

[0003] The purpose of this invention is to provide an ultrasonic welding device, specifically an ultrasonic welding device for welding small decorative strips to the welding area on the rear panel of an air vent. Its core lies in the improved design of the ultrasonic welding head, enabling it to not only perform ultrasonic welding but also position small plastic parts. This addresses the problems of traditional welding methods, which lack space for adding positioning structures and struggle to meet aesthetic requirements when welding small plastic parts.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] This utility model provides an ultrasonic welding device for welding a rear panel of an air outlet and a decorative strip welded component, wherein the decorative strip welded component is wavy. The ultrasonic welding device includes...

[0006] Base;

[0007] The membrane is fixed on the base and is used to place the rear panel of the air outlet;

[0008] An ultrasonic generator is used to provide ultrasonic waves;

[0009] An ultrasonic welding head is positioned above the tire membrane and connected to the ultrasonic generator. The bottom of the ultrasonic welding head is connected to the trim welding piece and is used to position the trim welding piece and deliver it to the area to be welded.

[0010] The connection mode of the ultrasonic generator and the ultrasonic welding head is the existing conventional connection mode.

[0011] Further, the two ends of the trim welding piece are provided with protrusions, the bottom of the ultrasonic welding head is provided with a first groove body, the first groove body is shaped like the trim welding piece, and the two ends of the first groove body are provided with connecting grooves, and the protrusions are embedded in the connecting grooves and connected with the connecting grooves in an interference fit. In this way, the small trim welding piece is clamped at the bottom of the ultrasonic welding head, thereby achieving the fixing effect.

[0012] Further, the trim welding piece is a wave-shaped welding strip that is bent in a U shape as a whole.

[0013] Further, a pressure sensor is also embedded in the connecting groove, and an alarm is connected to the information output end of the pressure sensor. The pressure sensor can detect the clamping force of the ultrasonic welding head on the trim welding piece. If the clamping is not in place, the alarm will be activated to alarm, thereby avoiding the problem that the welding effect is poor or even cannot be welded due to the improper positioning of the trim welding piece.

[0014] Further, a second groove body is formed on the tire membrane, and the rear panel of the air outlet is placed in the second groove body and tightly fits the wall of the second groove body.

[0015] Further, the top end of the ultrasonic welding head is provided with a lifting rod, and the ultrasonic welding head is connected with the lifting rod through a screw.

[0016] Further, the ultrasonic welding device further comprises a driving motor, and the driving motor is electrically connected with the lifting rod.

[0017] Further, the ultrasonic welding head is a titanium alloy welding head.

[0018] Further, a booster is arranged between the ultrasonic welding head and the energy output end of the ultrasonic generator. The booster helps to generate greater pressure and heat on the ultrasonic welding head, thereby improving the welding efficiency and quality.

[0019] Further, the ultrasonic generator is provided with a built-in controller to stop the ultrasonic welding head from generating waves for a period of time.

[0020] Further, the bottom of the base is provided with a rubber pad.

[0021] Further, the lower bottom surface of the rubber pad is provided with a threaded hole, and the base is fixed on the workbench through a screw. This makes the entire ultrasonic welding device more stable.

[0022] Compared with the prior art, the ultrasonic welding device has the following beneficial effects:

[0023] 1) relative to the operation mode of traditional hot riveting and hot plate, the small decorative strip welding piece is fixed at the bottom of the ultrasonic welding head, the small decorative strip welding piece is welded at the welding area of the rear panel of the air outlet by the modified ultrasonic welding head, the obtained product has good appearance, the assembly gap error is controlled within 0.1MM, and the product appearance requirement and quality control are greatly improved;

[0024] 2) the ultrasonic welding head has the functions of ultrasonic welding and positioning small size plastic parts, solves the problems that the decorative strip is relatively small and there is no space to make a positioning structure, and greatly improves the overall quality and market competitiveness of the product. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 it is a structure schematic view of the ultrasonic welding equipment in the utility model;

[0026] Figure 2 it is a structure schematic view of the ultrasonic welding head in the utility model;

[0027] Figure 3 it is a structure schematic view of the ultrasonic welding head in the utility model;

[0028] Figure 4 it is a structure schematic view of the decorative strip welding piece in the utility model;

[0029] Marking in the drawing:

[0030] 1-base, 2-tire membrane, 3-rear panel of air outlet, 4-decorative strip welding piece, 5-ultrasonic welding head, 6-connection groove, 7-lifting rod, 8-bump. DETAILED DESCRIPTION

[0031] The utility model will be described in detail below in combination with the drawings and specific embodiments. The following embodiments are implemented on the premise of the above technical solutions of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0032] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0033] Some embodiments of the utility model will be described in detail below in combination with the drawings. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0034] In the following embodiments, unless otherwise specified, the raw materials or processing techniques are conventional commercially available raw materials or conventional processing techniques in the art. Unless otherwise specified, the functional components or structures are conventional components or conventional structures used in the art to achieve the corresponding functions.

[0035] Example:

[0036] An ultrasonic welding device, such as Figure 1 As shown, the ultrasonic welding equipment is used to weld the rear panel 3 of the air outlet and the decorative strip welding part 4. The decorative strip welding part 4 is wavy. The ultrasonic welding equipment includes a base 1, a membrane 2 fixed on the base 1 for placing the rear panel of the air outlet, an ultrasonic generator for providing ultrasonic waves, and an ultrasonic welding head 5 located above the membrane 2 and threadedly connected to the ultrasonic generator. The ultrasonic welding head 5 is a titanium alloy welding head. The bottom of the ultrasonic welding head 5 is connected to the decorative strip welding part 4 for positioning the decorative strip welding part 4 and sending it to the area to be welded. A booster is provided between the ultrasonic welding head 5 and the energy output end of the ultrasonic generator. The booster helps to generate greater pressure and heat on the ultrasonic welding head 5, thereby improving welding efficiency and quality. A second groove is opened on the membrane 2. The rear panel 3 of the air outlet is placed in the second groove and is tightly fitted to the wall of the second groove. A lifting rod 7 is provided at the top of the ultrasonic welding head 5. Figure 2 The ultrasonic welding head 5 is connected to the lifting rod 7 by screws. The ultrasonic welding equipment also includes a drive motor, which is electrically connected to the lifting rod. The decorative strip welding part 4 is a wavy welding strip with an overall U-shaped bend. Figure 1 , Figure 4 The decorative strip welding part 4 has protrusions 8 at both ends, and the bottom of the ultrasonic welding head 5 has a first groove, which is similar in shape to the decorative strip welding part 4, and the two ends of the first groove have connecting grooves 6. Figure 3 The protrusion 8 is embedded in the connecting groove 6 and is interference-fitted with the connecting groove 6, thus securing the small decorative strip welding part 4 to the bottom of the ultrasonic welding head for fixation. Additionally, a pressure sensor is embedded in the connecting groove 6, and the information output of the pressure sensor is connected to an alarm. The pressure sensor can detect the clamping force of the ultrasonic welding head 5 on the decorative strip welding part 4. If the clamping is not in place, the alarm will be activated to prevent problems such as poor welding effect or even welding failure due to improper positioning of the decorative strip welding part 4. Furthermore, a rubber pad is provided at the bottom of the base 1, and the bottom surface of the rubber pad has threaded holes. The base 1 is fixed to the worktable with screws, making the entire ultrasonic welding equipment more stable.

[0037] The ultrasonic welding device in the above embodiment is used as follows: first, the rear panel 3 of the air outlet is placed in the second groove of the tire membrane 2, the protrusion 8 on the decorative strip welding piece 4 is embedded in the connecting groove 6 and connected with the connecting groove 6 in interference fit, the ultrasonic welding head 5 is positioned on the decorative strip welding piece 4, then, the ultrasonic generator and the driving motor are started, the ultrasonic welding head 5 carrying the decorative strip welding piece 4 is lowered and close to the to-be-welded area (the welding ribs on the rear panel 3 of the air outlet) of the rear panel 3 of the air outlet, after 10 seconds, the ultrasonic welding head stops emitting waves, the welding is completed, the ultrasonic welding head 5 is reset, and the welding ribs are cooled for 5 seconds, and then the rear panel 3 of the air outlet is taken down after the welding ribs are cooled.

[0038] The above description of the embodiments is for facilitating the ordinary skilled in the art to understand and use the utility model. Those skilled in the art can obviously easily make various modifications to the embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art according to the disclosure of the utility model without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. An ultrasonic welding device for welding a rear panel (3) of an air outlet and a decorative strip weldment (4), wherein the decorative strip weldment (4) is wavy, characterized in that, Ultrasonic welding equipment includes Base (1); The membrane (2) is fixed on the base (1) and is used to place the rear panel (3) of the air outlet. An ultrasonic generator is used to provide ultrasonic waves; An ultrasonic welding head (5) is positioned above the membrane (2) and connected to the ultrasonic generator. The bottom of the ultrasonic welding head (5) is connected to the trim welding piece (4) to position the trim welding piece (4) and deliver it to the area to be welded.

2. The ultrasonic welding equipment according to claim 1, characterized in that, The decorative strip welding part (4) has protrusions (8) at both ends. The bottom of the ultrasonic welding head (5) has a first groove. The first groove is similar in shape to the decorative strip welding part (4). The first groove has connecting grooves (6) at both ends. The protrusions (8) are embedded in the connecting grooves (6) and are connected to the connecting grooves (6) with an interference fit.

3. The ultrasonic welding equipment according to claim 2, characterized in that, A pressure sensor is also embedded in the connecting groove (6), and an alarm is connected to the information output end of the pressure sensor.

4. The ultrasonic welding equipment according to claim 1, characterized in that, The fetal membrane (2) has a second groove, and the rear panel (3) of the air outlet is placed in the second groove and is tightly fitted to the wall of the second groove.

5. The ultrasonic welding equipment according to claim 3, characterized in that, The ultrasonic welding head (5) is provided with a lifting rod (7) at the top, and the ultrasonic welding head (5) and the lifting rod (7) are connected by screws.

6. The ultrasonic welding equipment according to claim 5, characterized in that, The ultrasonic welding equipment also includes a drive motor, which is electrically connected to the lifting rod (7).

7. The ultrasonic welding equipment according to claim 1, characterized in that, The ultrasonic welding head (5) is a titanium alloy welding head.

8. The ultrasonic welding equipment according to claim 1, characterized in that, A booster is provided between the ultrasonic welding head (5) and the energy output end of the ultrasonic generator.

9. The ultrasonic welding equipment according to claim 1, characterized in that, The base (1) has a rubber pad at the bottom.

10. The ultrasonic welding equipment according to claim 9, characterized in that, The bottom surface of the rubber pad is provided with a threaded hole, and the base (1) is fixed to the workbench by screws.

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