WO2018053868A1

WO2018053868A1 - Ultrasonic welding head and welding device

Info

Publication number: WO2018053868A1
Application number: PCT/CN2016/100199
Authority: WO
Inventors: 李永华
Original assignee: 深圳市必利超音波自动化机械有限公司
Priority date: 2016-09-26
Filing date: 2016-09-26
Publication date: 2018-03-29
Also published as: CN107690382A

Abstract

An ultrasonic welding head and a welding device. The ultrasonic welding head comprises four line-shaped welding assemblies (104). The four line-shaped welding assemblies (104) are fixedly connected together in a manner of being perpendicular to each other, so as to form a plus-shaped welding head (1). The cross section of the plus-shaped welding head (1) is a plus-shaped structure symmetrical to the center. The welding device comprises the welding head. When bag-contained springs (4) are welded by using the plus-shaped welding head, one rectangular welding edge can be welded by welding the bags for only two times, while one rectangular welding edge can be welded for at least three times by a using an L-shaped welding head formed by linear line-shaped welding heads. The welding heads can use one transducer, and multiple welding transducers do not need to be used on a same welding point, thereby reducing the space occupied by the welding device.

Description

技术领域 Technical field

[0001] 本发明涉及到超音波焊接设备领域，特别是涉及到一种超音波焊头以及焊接设备。 [0001] The present invention relates to the field of ultrasonic welding equipment, and more particularly to an ultrasonic welding head and welding apparatus.

背景技术 Background technique

[0002] 超音波焊接是利用发生器产生高压、高频信号，通过换能***，把信号转换为高频机械振动，加于塑料工件上，通过工件表面及内在分子间的摩擦让焊接口的温度升高，当温度达到此工件本身的熔点吋，工件接口迅速熔化，继而填充于接口间的缝隙，当振动停止，工件同吋在一定压力下冷却定型，便完成焊接 [0002] Ultrasonic welding uses a generator to generate high-voltage, high-frequency signals. By transducing the system, the signal is converted into high-frequency mechanical vibration, which is applied to the plastic workpiece, and the welding port is made by the friction between the surface of the workpiece and the intrinsic molecules. The temperature rises, when the temperature reaches the melting point of the workpiece itself, the workpiece interface melts rapidly, and then fills the gap between the interfaces. When the vibration stops, the workpiece is cooled and shaped under a certain pressure, and the welding is completed.

[0003] 布袋弹簧焊接吋，需要对单个弹簧四周的布进行焊接使其封闭，传统的加工使用的是一字的焊接头，通过两个一字焊接头组合成 L型焊接头组合，再通过 L型焊接头组合进行布袋弹簧的焊接，导致设备焊接效率较低；另外每个一字焊头上都对应安装有换能器，导致设备内部用于容纳焊头的空间增大。 [0003] The bag spring is welded, and the cloth around the single spring needs to be welded to be closed. The conventional processing uses a one-word welding head, which is combined into two L-shaped welding heads through two one-piece welding heads, and then passed. The L-type welding head combination performs the welding of the bag spring, resulting in low welding efficiency of the equipment; in addition, each of the one-piece welding heads is equipped with a transducer, which leads to an increase in the space for accommodating the welding head inside the device.

技术问题 technical problem

[0004] 本发明的主要目的为提供，一种超音波焊头以及焊接设备，易解决上述设备焊接效率低且空间占用率高的问题。 [0004] A main object of the present invention is to provide an ultrasonic welding head and a welding apparatus, which are easy to solve the problems of low welding efficiency and high space occupancy of the above equipment.

问题的解决方案 Problem solution

技术解决方案 Technical solution

[0005] 本发明提出一种超音波焊头，包括有四个一字焊接组件，四个所述一字焊接组件互相垂直固接在一起组成焊头，所述焊头的横截面为相对中心对称的十字形结构。 [0005] The present invention provides an ultrasonic welding head comprising four one-word welding assemblies, four of which are vertically fixed to each other to form a welding head, and the cross section of the welding head is opposite to the center Symmetrical cross structure.

[0006] 进一步地，所述焊头顶端中心位置设置有一凹槽，所述凹槽中幵有用于连接换能器的螺孔。 [0006] Further, a center of the tip end of the horn is provided with a groove, and the groove has a screw hole for connecting the transducer.

[0007] 进一步地，所述一字焊接组件下端接近焊接面部分为逐渐收缩的内凹曲面。 [0007] Further, the lower end of the one-word welding assembly is divided into a gradually concave inner concave surface near the welding surface.

[0008] 进一步地，所述一字焊接组件上沿竖直方向幵有通孔。 [0009] 进一步地，所述焊头为一体成型的结构。 [0008] Further, the one-word welding assembly has a through hole in a vertical direction. [0009] Further, the welding head is an integrally formed structure.

[0010] [0010]

[0011] 本发明还提出了一种超音波设备，使用了如上任一项所述的超音波焊头。 [0011] The present invention also proposes an ultrasonic device using the ultrasonic welding head according to any of the above.

[0012] 进一步地，所述焊头顶端依次固接有增幅器和换能器，所述增幅器和所述焊头[0012] Further, the top end of the welding head is sequentially fixed with an amplifier and a transducer, and the amplifier and the welding head

，与所述换能器和所述增幅器之间通过螺钉和内螺孔配合固接。 And being fixed by the screw and the inner screw hole between the transducer and the amplifier.

发明的有益效果 Advantageous effects of the invention

有益效果 Beneficial effect

[0013] 本发明的有益效果是：通过使用十字形焊头，进行布袋弹簧的焊接，只需要两次对布焊接就可以在布袋上焊接出一个矩形焊接边缘，相对于直线式的一字焊头组合成的 L型焊头，需要进行至少 3次才可以焊接出一个矩形焊接边缘；而且可以只使用一个换能器，无需在同一个焊接点使用多个焊接换能器，减少了焊接设备的空间占用。 [0013] The beneficial effects of the present invention are: by using a cross-shaped welding head, the welding of the bag spring, only need to weld the cloth twice to weld a rectangular welding edge on the bag, compared with the straight word welding The L-shaped welding head combined with the head needs to be welded at least 3 times to weld a rectangular welded edge; and only one transducer can be used, eliminating the need to use multiple welding transducers at the same welding point, reducing welding equipment Space occupancy.

对附图的简要说明 Brief description of the drawing

附图说明 DRAWINGS

[0014] 图 1是本发明超音波焊头一实施例连接换能器和增幅器的结构示意图； 1 is a schematic structural view of a transducer and an amplifier connected to an embodiment of the ultrasonic welding head of the present invention;

[0015] 图 2是本发明一实施例的十字焊头的结构主视图； 2 is a front elevational view showing the structure of a cross-welding head according to an embodiment of the present invention;

[0016] 图 3是现有焊头焊接布袋弹簧的焊接效果图； [0016] FIG. 3 is a welding effect diagram of a welding head spring of a conventional welding head;

[0017] 图 4是本发明超音波焊头一实施例焊接布袋弹簧的焊接效果图。 4 is a welding effect diagram of a welded bag spring of an embodiment of the ultrasonic welding head of the present invention.

[0018] [0018]

[0019] 本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。 [0019] The implementation, functional features, and advantages of the present invention will be further described with reference to the accompanying drawings.

实施该发明的最佳实施例 BEST MODE FOR CARRYING OUT THE INVENTION

本发明的最佳实施方式 BEST MODE FOR CARRYING OUT THE INVENTION

[0020] 应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。 The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0021] 请参阅图 1-4。须知，本说明书所附图图式所绘制的结构、比例大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限定条件，故不具备技术上的实质意义，任何机构的修饰、比例关系的改变或大小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应落在本发明所揭示的技术内容能涵盖的范围内。同吋，本说明书中所引用的"上"、 "下"、 "左"、 "右"、 "中间 "及"一"等的用语，亦仅为便于叙述的明了，而非用以限定本发明可实施的范围，其相对关系的改变和调整，在无实质变更技术内容的前提下，亦当视为本发明可实施的范畴。 [0021] Please refer to FIG. 1-4. It should be understood that the structures, the scales, and the like, which are drawn in the drawings of the present specification, are only used to clarify the disclosure of the specification for understanding and reading by those skilled in the art, and are not intended to limit the implementation of the invention. Condition, so it does not have technical significance, any institution's modification The change of the proportional relationship or the adjustment of the size, which does not affect the effects and the achievable objectives of the present invention, should fall within the scope of the technical content disclosed by the present invention. Similarly, the terms "upper", "lower", "left", "right", "intermediate" and "one" as used in this specification are also for convenience of description, and are not intended to limit the present. The scope of the invention can be implemented, and the change and adjustment of the relative relationship can be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0022] [0022]

[0023] 参照图 1和图 2，提出本发明一实施例，一种超音波焊头，包括有四个一字焊接组件 104，四个一字焊接组件 104固接在一起组成一个十字焊头 1，相邻的一字焊接组件 104相互垂直，十字焊头 1的横截面为相对中心对称的十字形结构。 1 and 2, an ultrasonic welding head according to an embodiment of the present invention includes a four-word welding assembly 104, and four one-word welding assemblies 104 are fixed together to form a cross-welding head. 1. Adjacent one-word welding assemblies 104 are perpendicular to each other, and the cross-welding head 1 has a cross-shaped cross-sectional structure that is symmetric with respect to the center.

[0024] 对应的，位于十字焊头 1底端的焊接面，也是十字形的表面，焊接面上规则设置有若干个凸出焊点，在焊接布袋弹簧 4吋，只需要在相邻的布袋弹簧 4之间的位置焊接一次，就可以焊接出一个十字焊接痕迹，通过依次多次焊接可以和相邻上下行之间的焊接痕迹组合成一个完整的矩形焊接边缘，矩形焊接边缘中压缩安装有弹簧。 [0024] Correspondingly, the welding surface located at the bottom end of the cross-welding head 1 is also a cross-shaped surface, and the welding surface is regularly provided with a plurality of protruding solder joints, in the welding pocket spring 4, only in the adjacent pocket spring Once the position between 4 is welded once, a cross weld mark can be welded. By welding multiple times in sequence, it can be combined with the welding traces between the adjacent upper and lower sides to form a complete rectangular welded edge. The rectangular welded edge is compressed and mounted with a spring. .

[0025] 如图 3和图 4所示，图 3为常规的布袋弹簧 4焊接效果示意图，其中，通过一字焊头 b和一字焊头 c相互垂直组成 L型的组合焊头，每次在布袋弹簧 4四周焊接出互相垂直的两条焊接轨迹，如图所需要至少进行三次对布料焊接才可以得到一个矩形焊接边缘；如图 4所示，本申请的十字焊头 la的结构更加有效，由上下两次焊接就可以得到一个封闭的矩形焊接边缘，将布袋弹簧 4完全包裹在里面。而且本申请的焊头只使用一个换能器 3，无需在同吋使用多个换能器 3和焊头的组合才可以进行焊接，降低了焊接设备内焊头的空间占用和能量的消耗，提高了设备加工效率。 [0025] As shown in FIG. 3 and FIG. 4, FIG. 3 is a schematic view showing the welding effect of the conventional bag spring 4, wherein the L-shaped combination welding head is vertically formed by the one-head welding head b and the one-head welding head c, each time Two welding trajectories perpendicular to each other are welded around the bag spring 4, and at least three times of welding the cloth as needed to obtain a rectangular welded edge; as shown in FIG. 4, the structure of the cross-welding head la of the present application is more effective. A closed rectangular welded edge can be obtained by welding two times up and down, and the bag spring 4 is completely wrapped inside. Moreover, the welding head of the present application uses only one transducer 3, and it is not necessary to use a combination of a plurality of transducers 3 and welding heads at the same time to weld, thereby reducing the space occupation and energy consumption of the welding head in the welding equipment. Improve equipment processing efficiency.

[0026] [0026]

[0027] 参照图 1和 2，提出本发明另一实施例，一种超音波焊头，包括有四个一字焊接组件 104，四个一字焊接组件 104固接在一起组成一个十字焊头 1，相邻的一字焊接组件 104相互垂直，十字焊头 1的横截面为相对中心对称的十字形结构。 [0027] Referring to Figures 1 and 2, another embodiment of the present invention is provided. An ultrasonic welding head includes four one-word welding assemblies 104, and four one-word welding assemblies 104 are fixed together to form a cross-welding head. 1. Adjacent one-word welding assemblies 104 are perpendicular to each other, and the cross-welding head 1 has a cross-shaped cross-sectional structure that is symmetric with respect to the center.

[0028] 对应的，在十字焊头 1底端的焊接面，也是十字的表面，在焊接布袋弹簧 4吋，只需要在相邻的四个布袋弹簧 4之间的位置焊接一次，就可以焊接出一个十字焊接痕迹，通过依次多次焊接可以和相邻上下行之间的焊接纹路组合成一个完整的矩形焊接边缘，矩形焊接边缘中压缩安装有布袋弹簧 4。 [0028] Correspondingly, the welding surface at the bottom end of the cross-welding head 1 is also the surface of the cross. In the welding bag spring 4, only need to be welded once at the position between the adjacent four pocket springs 4, the welding can be performed. a cross weld The traces can be combined with the adjacent weld lines by a plurality of welds in sequence to form a complete rectangular weld edge, and a pocket spring 4 is compression-mounted in the rectangular welded edge.

[0029] 如图 3和图 4所示，图 3为常规的布袋弹簧 4焊接效果示意图，其中，通过一字焊头 b和一字焊头 c相互垂直组成 L型的组合焊头，每次在布袋弹簧 4四周焊接出互相垂直的两条焊接轨迹，如图所需要至少进行三次对布料焊接才可以得到一个矩形焊接边缘；如图 4所示，本申请的十字焊头 1的结构更加有效，由上下两次焊接就可以得到一个封闭的矩形焊接边缘，将布袋弹簧 4完全包裹在里面。而且本申请的焊头只使用一个换能器 3，无需在同吋使用多个换能器 3和焊头的组合才可以进行焊接，降低了焊接设备内焊头的空间占用和能量的消耗，提高了设备加工效率。 3 and FIG. 4, FIG. 3 is a schematic view showing the welding effect of the conventional bag spring 4, wherein the L-shaped combination welding head is vertically formed by the one-head welding head b and the one-head welding head c, each time Two welding trajectories perpendicular to each other are welded around the bag spring 4, and at least three times of welding the cloth as needed to obtain a rectangular welded edge; as shown in FIG. 4, the structure of the cross-welding head 1 of the present application is more effective. A closed rectangular welded edge can be obtained by welding two times up and down, and the bag spring 4 is completely wrapped inside. Moreover, the welding head of the present application uses only one transducer 3, and it is not necessary to use a combination of a plurality of transducers 3 and welding heads at the same time to weld, thereby reducing the space occupation and energy consumption of the welding head in the welding equipment. Improve equipment processing efficiency.

[0030] 焊头顶端中心位置设置有一凹槽 101，凹槽 101中幵有用于连接换能器 3的螺孔，螺孔可以用于安装连接增幅器和换能器 3，增幅器和换能器 3通过内螺钉，紧紧固定在凹槽 101中的螺孔中，换能器 3为十字焊头 1提供振动来源。 [0030] The center of the tip of the welding head is provided with a groove 101. The groove 101 is provided with a screw hole for connecting the transducer 3. The screw hole can be used for mounting the connection amplifier and the transducer 3, the amplifier and the transducing device. The device 3 is tightly fixed in a screw hole in the groove 101 by an inner screw, and the transducer 3 provides a source of vibration for the cross head 1.

[0031] 所述焊头顶端依次固接有增幅器 2和换能器 3，所述增幅器 2和所述焊头，所述换能器 3和所述增幅器 2之间通过螺钉和内螺孔配合固接。 [0031] The top end of the welding head is sequentially fixed with an amplifier 2 and a transducer 3, the amplifier 2 and the welding head, the transducer 3 and the amplifier 2 are passed between a screw and an inner The screw holes are fixed and fixed.

[0032] 一字焊接组件 104下端接近焊接面部分为逐渐收缩的内凹曲面 103，也就是十字焊头 1下端接近焊接面部分为逐渐收缩的内凹曲面 103，逐渐收缩的内凹曲面 103 保证焊头硬度和超声波传导稳定性，下部分的截面宽度逐渐缩小，可以避免了十字焊头 1在焊接吋布袋弹簧对十字焊头 1产生干涉，保证了焊接吋焊头可以直接接触到待焊接相邻布袋弹簧 4之间的布料。 [0032] The lower end of the one-word welding assembly 104 is divided into a gradually shrinking concave curved surface 103 near the welded surface, that is, the lower end of the cross-welding head 1 is close to the welded surface and is divided into a gradually shrinking concave curved surface 103, and the gradually shrinking concave curved surface 103 is ensured. The hardness of the welding head and the ultrasonic conduction stability, the cross-sectional width of the lower part is gradually reduced, which can avoid the interference of the cross-welding head 1 on the welding head of the welding head, which ensures that the welding head can directly contact the phase to be welded. The cloth between the adjacent bag springs 4.

[0033] 一字焊接组件 104上沿竖直方向幵有通孔 102，保证每个一字焊接组件 104的机械强度的前提下，减少用料，进而降低了焊头的生产用料和企业的生产成本。 [0033] The in-line welding assembly 104 has a through hole 102 in the vertical direction to ensure the mechanical strength of each of the one-word welding assembly 104, thereby reducing the material used, thereby reducing the production materials and the enterprise of the welding head. Cost of production.

[0034] 焊头为一体成型的结构，一体成型的结构使得整个焊头具备有足够的机械强度，超音波在焊头上传递振动的方向均匀，进一步保证了焊接吋的焊接效果。 [0034] The welding head is an integrally formed structure, and the integrally formed structure enables the entire welding head to have sufficient mechanical strength, and the direction in which the ultrasonic waves transmit vibration on the welding head is uniform, thereby further ensuring the welding effect of the welding boring.

[0035] 通过使用十字形焊头，进行布袋弹簧 4的焊接，只需要两次对布焊接就可以在布袋上焊接出一个矩形焊接边缘，相对于直线式的一字焊头组合成的 L型焊头，需要进行至少 3次才可以焊接出一个矩形焊接边缘；而且可以只使用一个换能器 3，无需在同一个焊接点使用多个焊接换能器 3，减少了焊接设备的空间占用。 [0036] 本发明还提出了一种超音波设备，使用了如上所述的超音波焊头。 [0035] By using a cross-shaped welding head to perform the welding of the bag spring 4, it is only necessary to weld the cloth twice to weld a rectangular welded edge on the bag, and the L-shaped combination with the straight-line one-head welding head The welding head needs to be welded at least 3 times to weld a rectangular welded edge; and only one transducer 3 can be used, eliminating the need to use multiple welding transducers 3 at the same welding point, reducing the space occupied by the welding equipment. The present invention also proposes an ultrasonic device using the ultrasonic horn as described above.

[0037] 如图 2所示，焊头顶端依次固接有增幅器和换能器 3，增幅器 2和焊头，换能器 3 和增幅器 2之间通过螺钉和内螺孔配合固接。 [0037] As shown in FIG. 2, the top end of the welding head is sequentially fixed with an amplifier and a transducer 3, the amplifier 2 and the welding head, and the transducer 3 and the amplifier 2 are fixed by screws and internal screw holes. .

[0038] 以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。 The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are used directly or indirectly. Other related technical fields are equally included in the scope of patent protection of the present invention.

Claims

权利要求书 Claim

[权利要求 1] 一种超音波焊头，其特征在于，包括有四个一字焊接组件，四个所述一字焊接组件互相垂直固接在一起组成焊头，所述焊头的横截面为中心对称的十字形结构。 [Attachment 1] An ultrasonic welding head characterized by comprising four one-word welding assemblies, four of which are vertically fixed to each other to form a welding head, and a cross section of the welding head A symmetrical cross-shaped structure.

[权利要求 2] 如权利要求 1所述的超音波焊头，其特征在于，所述焊头顶端中心位置设置有一凹槽，所述凹槽中幵有用于连接换能器的螺孔。 [Attachment 2] The ultrasonic welding head according to claim 1, wherein a center of the tip end of the welding head is provided with a groove in which a screw hole for connecting the transducer is inserted.

[权利要求 3] 如权利要求 1所述的超音波焊头，其特征在于，所述一字焊接组件下端接近焊接面部分为逐渐收缩的内凹曲面。 [Attachment 3] The ultrasonic welding head according to claim 1, wherein the lower end of the one-word welding assembly is divided into a gradually concave concave curved surface close to the welded surface.

[权利要求 4] 如权利要求 1所述的超音波焊头，其特征在于，所述一字焊接组件上沿竖直方向幵有通孔。 [Attachment 4] The ultrasonic welding head according to claim 1, wherein the one-word welding assembly has a through hole in a vertical direction.

[权利要求 5] 如权利要求 1所述的超音波焊头，其特征在于，所述焊头为一体成型的结构。 [Claim 5] The ultrasonic welding head according to claim 1, wherein the welding head is an integrally formed structure.

[权利要求 6] —种超音波焊接设备，其特征在于，使用了如上权利要求 1-5任一项所述的超音波焊头。 [Attachment 6] An ultrasonic welding apparatus characterized by using the ultrasonic welding head according to any one of claims 1 to 5.

[权利要求 7] 如权利要求 6所述的超音波焊接设备，其特征在于，所述焊头顶端依次固接有增幅器和换能器，所述增幅器和所述焊头，所述换能器和所述增幅器之间通过螺钉和内螺孔配合固接。 [Attachment 7] The ultrasonic welding apparatus according to claim 6, wherein the tip of the horn is sequentially fixed with an amplifier and a transducer, and the horn and the horn are replaced by the horn The energy device and the amplifier are fixedly coupled by a screw and an inner screw hole.