CN2778455Y - Support device for ultrasonic welding apparatus - Google Patents

Abstract

The utility model relates to a support device for ultrasonic welding apparatus, which comprises a rhabdion amplitude transformer and a wave eliminating film sheet, wherein the rhabdion amplitude transformer is supported in an axial direction, the amplitude is zero and the wave eliminating film sheet can allow deformation of the axial direction and can bear vibrations of the axial direction. The utility model can enable the rhabdion amplitude transformer to be used as a fixed origin point of an entire vibration system, and at the same time, the wave eliminating film sheet bears a telescopic deformation which is caused by temperature changes and vibration stretches in order to obtain a favorable support ability in a radial direction.

Description

Be applied to the bracing or strutting arrangement of ultrasonic fusing equipment

Technical field

The utility model is a kind of bracing or strutting arrangement, refers to a kind of welded joint and a Work-sheet pressing and the stable bracing or strutting arrangement that contacts in order to support ultrasonic fusing equipment especially.

Background technology

With regard to the welding principle of general ultrasonic wave metal welder: mainly be to utilize a welded joint that can produce dither, when two workpiece are in contact with one another, welded joint is crimped on one of them workpiece, another workpiece then is clamped to a counterdie, cause two workpiece relative motions, rub and the generation molecular recombination with high frequency and high pressure vibration, and then reach molten mutually purpose of hugging.And for ultrasonic fusing equipment, whole is the system of an axial vibration, therefore needing the good supporting device could make that welded joint is able to stably be in contact with one another with last, but with existing bracing or strutting arrangement, a kind of be adopt the thin plate diaphragm simultaneously at the two ends of welded joint mode as support, the shortcoming of this kind mode is that rigidity is not enough, when welded joint is applied in weight and when contacting with workpiece, axial amplitude often changes easily, the less stable that makes welding; Another is to adopt the rhabdion amplitude transformer as support simultaneously at the two ends of welded joint, as its name suggests, it is a kind of supporting way of rigidity, can make that the two ends of welded joint are all clamped fully, the shortcoming of this kind mode is, after operation a period of time, thermal expansion effects can make welded joint length increase, do not cause the welded joint mid portion to be compressed but had extendable room because of the welded joint two ends, so will increase load, and the axial amplitude of welded joint also can be offset in the rhabdion amplitude transformer at two ends to some extent, and the welding effect is subjected to a certain degree influencing approximately equally.

The utility model content

According to above-mentioned, main purpose of the present utility model is, provides a kind of ultrasonic fusing equipment effective support and while can not increase the bracing or strutting arrangement of its load.

In order to achieve the above object, a kind of bracing or strutting arrangement that is applied to ultrasonic fusing equipment of the utility model, this ultrasonic fusing equipment comprises the welded joint that a PZT (piezoelectric transducer) and that produces axial dither is driven by this PZT (piezoelectric transducer), and this welded joint has a working flank, it is characterized in that:

It comprises one, and to be supported in axial amplitude be that zero rhabdion amplitude transformer and can bear the wave absorption diaphragm of axial vibration.

The bracing or strutting arrangement that is applied to ultrasonic fusing equipment of the present utility model, but its effective support and simultaneously can not increase its load.

Description of drawings

For further specifying technology contents of the present utility model, below in conjunction with embodiment and accompanying drawing describes in detail as after, wherein:

Fig. 1 is the structural map that the utility model is applied to bracing or strutting arrangement one preferred embodiment of ultrasonic fusing equipment.

Fig. 2 is the wave absorption diaphragm front view of this preferred embodiment.

Fig. 3 is the ultrasonic fusing equipment drawing that the utility model is applied to half-wavelength.

The specific embodiment

Consult Fig. 1, one preferred embodiment of bracing or strutting arrangement of the present utility model is the ultrasonic wave metal welder that is applied to the long soldering tip of an all-wave, this ultrasonic fusing equipment comprises a PZT (piezoelectric transducer) 1, a rhabdion amplitude transformer 3 and a welded joint 2, wherein, PZT (piezoelectric transducer) 1 is mainly producing axial dither, and welded joint 2 (or claims the work loudspeaker, horn) be to be subjected to the driving of PZT (piezoelectric transducer) 1 and rhabdion amplitude transformer 3 and to produce axial dither, place, the centre position of welded joint 2 has a working flank 21 again, by on make the flank of tooth 21 and bite a workpiece (figure do not show), make workpiece along with moving axially, another workpiece is then gripped, make two workpiece produce relative motion, friction mutually makes the intermolecular reorganization of two workpiece to reach the effect of mutual welding then.

And bracing or strutting arrangement is in order to be supported in the two ends of welded joint 2, it comprises that one is positioned at welded joint 2 one ends and is supported in the rhabdion amplitude transformer 3 that axial amplitude is zero position, reach one and be positioned at welded joint 2 other ends to bear the wave absorption diaphragm 4 of axial vibration, reaching one is the resonant rods 6 that wave absorption diaphragm 4 locks wear, in this example, wave absorption diaphragm 4 (see figure 2)s are plates, its central authorities with a confession welded joint 2 end locking positionings place hole 41 and are the fluting 42 that makes this diaphragm and system resonance, fluting 42 is that the Applied Digital vibration simulation is analyzed the produced optimum shape of science and technology, wave absorption diaphragm 4 inner rings utilize resonant rods 6 and welded joint 2 to interfix, the outer ring is then fixing with a stop sleeve 5, can the conduct vibrations that welded joint 2 conducts to stop sleeve 5 be minimized by it, effectively reach wave absorbing function, and obtain support radially.

Fig. 3 and for example, be the ultrasonic fusing equipment that the utility model is applied to half-wavelength, wherein welded joint 2 is to be positioned at the left side, to the right successively with wave absorption diaphragm 4 and rhabdion amplitude transformer 3 as support, its effect is identical with the ultrasonic fusing equipment of aforementioned all-wave length, repeats no more in this.

By above-mentioned design, make rhabdion amplitude transformer 3 as the whole fixed origin that contains the ultrasonic vibration system of welded joint 2, variations in temperature and the flexible dilatation amount of vibration can be provided by wave absorption diaphragm 4 simultaneously, therefore can not increase unnecessary load, welded joint 2 also can not be squeezed and influence amplitude, thereby and obtains radially good supporting.

Comprehensive the above, the utility model " is applied to the bracing or strutting arrangement of ultrasonic fusing equipment ", really can be by above-mentioned structure, reach the effect of expection, and do not see the also unexposed use of publication before the application, meet novelty, the progress of novel patent and meet conditions such as industry applications, so propose patent application in accordance with the law.And the above only is embodiment of the present utility model, and every simple and easy modification and equivalence of doing according to spirit of the present utility model changes design, should be covered by in the following claim.

Claims (1)

1. bracing or strutting arrangement that is applied to ultrasonic fusing equipment, this ultrasonic fusing equipment comprise the welded joint that a PZT (piezoelectric transducer) and that produces axial dither is driven by this PZT (piezoelectric transducer), and this welded joint has a working flank, it is characterized in that:

It comprises one, and to be supported in axial amplitude be that zero rhabdion amplitude transformer and can bear the wave absorption diaphragm of axial vibration.

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