CN219856040U - Ultrasonic welding machine capable of vibrating transversely - Google Patents

Abstract

The utility model belongs to the technical field of ultrasonic welding, and particularly relates to a transverse vibration ultrasonic welding machine, which comprises a supporting seat, a lifting driving piece, a connecting seat, a transducer, an amplitude modulator and a welding head; the lifting driving piece is arranged on the supporting seat, the lifting driving piece is provided with a lifting end, and the connecting seat is connected with the lifting end of the lifting driving piece; the connecting seat is internally provided with a mounting hole, the axis of the mounting hole is mutually perpendicular to a track line for driving the connecting seat to lift by the lifting driving piece, the amplitude modulator is arranged in the mounting hole, the transducer is arranged at one end of the amplitude modulator, the welding head is arranged at the other end of the amplitude modulator, and the mechanical vibration direction formed by conversion of the transducer is mutually perpendicular to the driving direction of the lifting driving piece. The vibration transmission directions of the transducer and the amplitude modulator are transverse, so that the transverse vibration of the welding head is not limited, or the transverse vibration of the welding head is less influenced, and the welding head can vibrate in the transverse direction to a larger extent.

Description

Ultrasonic welding machine capable of vibrating transversely

Technical Field

The utility model belongs to the field of ultrasonic welding, and particularly relates to a transverse vibration ultrasonic welding machine.

Background

Ultrasonic welding is to transfer high-frequency vibration waves to the surfaces of two objects to be welded, and under the condition of pressurization, the surfaces of the two objects are rubbed with each other to form fusion between molecular layers. The ultrasonic welding machine converts electronic energy into mechanical energy by ultrasonic vibration, and then transmits the energy to the contact surface of the plastic workpiece by a welding Head (HORN), so that the molecules are subjected to intense friction, and the products are instantly melted and combined into a whole, so that the processing speed is high, clean, attractive and economical.

The ultrasonic welding machine generally comprises a machine body, a lifting seat, an ultrasonic generator, a transducer, an amplitude modulator and a welding head; the ultrasonic generator transmits ultrasonic vibration to the transducer, the transducer converts the ultrasonic vibration into mechanical vibration, the mechanical vibration is transmitted to the welding head through the amplitude modulator, and the welding head finishes welding processing. At present, ultrasonic welding is widely applied to welding of plastic parts, cloth and metal materials.

The axes of the transducer and the amplitude modulator in the ultrasonic wave are consistent with the lifting direction of the lifting seat. For example, an ultrasonic welding machine disclosed in chinese patent application publication No. CN115156689a, in which an ultrasonic welding head is driven to be pressed down by a lifting mechanism, and welding is completed by the lower welding head. However, because the axes of the transducer and the amplitude modulator are consistent with the direction of the lifting mechanism, when the welding head is pressed on a welding product, the transducer and the amplitude modulator enable the welding head to generate high-frequency vibration, because the welding head is subjected to downward pressure and the transmission direction of the welding head vibration is consistent with the downward pressure direction, the amplitude of the transverse vibration of the welding head is obviously limited, the welding temperature is high, the welding difficulty is high, the welding power is high, the transverse movement amplitude of the welding head is limited, the mutual friction distance of the welding products is limited, and therefore, the purpose of product welding needs to be achieved by increasing the welding time, so that the welding efficiency is low. Even the problem of weak welding can result.

Disclosure of Invention

The utility model aims to provide a transverse vibration ultrasonic welding machine, which solves the problems that in the prior art, when welding products with high welding power and high welding temperature or high welding difficulty, the welding time is increased and the welding is unstable due to arrangement.

In order to achieve the above purpose, the embodiment of the utility model provides a transverse vibration ultrasonic welding machine, which comprises a supporting seat, a lifting driving piece, a connecting seat, a transducer, an amplitude modulator and a welding head; the lifting driving piece is arranged on the supporting seat, the lifting driving piece is provided with a lifting end, and the connecting seat is connected with the lifting end of the lifting driving piece; the connecting seat is internally provided with a mounting hole, the axis of the mounting hole is mutually perpendicular to the track line of the lifting driving piece for driving the connecting seat to lift, the amplitude modulator is arranged in the mounting hole, the transducer is arranged at one end of the amplitude modulator, the welding head is arranged at the other end of the amplitude modulator, and the mechanical vibration direction formed by the transducer in a conversion mode is mutually perpendicular to the driving direction of the lifting driving piece.

Further, an open slot is formed in one side of the connecting seat, the open slot penetrates through the mounting hole, a plurality of threaded holes are formed in one inner side wall of the open slot, a through hole is formed in the other side of the open slot, and a locking screw penetrates through the through hole and is connected with the threaded holes; the inside wall of mounting hole still is provided with the resilience groove.

Further, the transducer is tightly sleeved with a connecting disc, the connecting disc is fixedly connected in the mounting hole, and a plurality of vibration reduction through holes are formed in the connecting disc.

Further, the number of the connecting discs is two, and the connecting discs are respectively sleeved at two ends of the amplitude modulator.

Further, screw holes are formed in two ends of the amplitude modulator, screw bolts are arranged in the two ends of the welding head and the end parts of the transducer, the two stud bolts are respectively connected with the transducer and the welding head, and the two connecting discs are respectively clamped between the amplitude modulator and the welding head and between the transducer and the amplitude modulator.

Further, a connecting sleeve is arranged between the two connecting discs, and the connecting sleeve is fixed in the mounting hole; the two connecting discs are respectively locked and fixed at the two ends of the connecting sleeve.

Further, the supporting seat is provided with an installation side plate and a top plate, the top plate is arranged at the top end of the installation side plate, the lifting driving piece is arranged at the top of the top plate, a guide rail is arranged on the inner side of the installation side plate, and the connecting seat is connected with the guide rail.

Further, a limiting piece is further arranged on the bottom side of the top plate, a through hole is formed in the limiting piece, and an adjusting bolt sequentially penetrates through the top plate and the through hole to be in threaded connection with the connecting seat; the upper end of the adjusting bolt is provided with a limiting part which is used for limiting the limiting part, and the upper end of the limiting part extends out of the top plate.

The above technical solutions in the transverse vibration ultrasonic welding machine provided by the embodiments of the present utility model at least have the following technical effects:

during welding, the lifting driving piece drives the connecting seat to descend, so that the welding head can compress products, the ultrasonic generator transmits vibration energy to the transducer, the transducer converts ultrasonic vibration into mechanical vibration, and the mechanical vibration is transmitted to the welding head through the amplitude modulator, and therefore welding of the products can be completed through the welding head. Because the axes of the transducer and the amplitude modulator of the ultrasonic welding machine vibrating transversely are mutually perpendicular to the movement direction of the lifting driving part driving connecting seat, the vibration transmission direction of the transducer and the amplitude modulator is transverse and can not limit the transverse vibration of the welding head, or the transverse vibration of the welding head can be affected less, so that the welding head can vibrate greatly in the transverse direction, the friction length of a product can be increased, the welding time can be shortened, the welding efficiency can be improved, the welding can be more compact, and the welding device can meet the welding difficulty and high welding power for welding the product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a structural cross-sectional view of a transverse vibration ultrasonic welding machine according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a transverse vibration ultrasonic welder provided by an embodiment of the present utility model.

Fig. 3 is a block diagram of an amplitude modulator connection welding head and a transducer of a transverse vibration ultrasonic welding machine according to an embodiment of the present utility model.

Fig. 4 is a cross-sectional view of a connection seat portion of a transverse vibration ultrasonic welding machine according to an embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, referring to fig. 1 to 4, the present embodiment is a transverse vibration ultrasonic welding machine, which includes a support base 100, a lift driving member 200, a connection base 300, a transducer 400, an amplitude modulator 500, and a welding head 600. The lifting driving member 200 is disposed on the supporting base 100, the lifting driving member 200 is provided with a lifting end, and the connecting base 300 is connected to the lifting end of the lifting driving member 200, so that the connecting base 300 can be driven to move up and down by the lifting driving member 200. The connecting seat 300 is internally provided with a mounting hole 301, the axis of the mounting hole 301 is mutually perpendicular to the track line of the lifting driving piece 200 driving the connecting seat 300 to lift, the amplitude modulator 500 is arranged in the mounting hole 301, the transducer 400 is arranged at one end of the amplitude modulator 500, the welding head 600 is arranged at the other end of the amplitude modulator 500, and the transmission direction of mechanical vibration formed by conversion of the transducer 400 is mutually perpendicular to the driving direction of the lifting driving piece 200. Specifically, during welding, the connection base 300 is driven to descend by the elevation driving member 200 so that the welding head 600 can compress the product, the energy of vibration is transferred to the transducer 400 by the ultrasonic generator, the ultrasonic vibration is converted into mechanical vibration by the transducer 400, and the mechanical vibration is transferred to the welding head 600 through the amplitude modulator 500, so that the welding of the product can be completed through the welding head 600. Because the axes of the transducer and the amplitude modulator 600 of the ultrasonic welding machine vibrating transversely are mutually perpendicular to the movement direction of the connecting seat 300 driven by the lifting driving piece 200, the vibration transmission directions of the transducer 400 and the amplitude modulator 500 are transverse, the transverse vibration of the welding head 600 is not limited, or the transverse vibration of the welding head 600 is only slightly affected, so that the welding head 600 can vibrate in a larger amplitude in the transverse direction, the friction length of a product can be increased, the welding time can be shortened, the efficiency can be improved, the welding of the product can be more compact, and the welding of the product with high welding difficulty and high welding power can be achieved.

Further, the lifting driving member 200 is an air cylinder, and the air cylinder drives the connecting seat 300 to descend, so that the welding head 600 compresses a product, and pressure can be always applied to the welding head 600 through the air cylinder, so that the welding head 600 can always apply pressure to the product in the welding process.

Further, referring to fig. 1 and 2, one side of the connection base 300 is provided with an open slot 302, the open slot 302 penetrates through the mounting hole 301, one inner sidewall of the open slot 302 is provided with a plurality of threaded holes, and the other side is provided with a through hole, and the locking screw passes through the through hole to be connected with the threaded holes. The inner side wall of the mounting hole 301 is also provided with a rebound groove 303. In this embodiment, the open slot 302 is provided, which not only facilitates the installation of the modulator 500, etc., but also reduces the mounting hole 301 by the locking bolt, thereby fixing the modulator 500 by clamping. In addition, the resilient groove 303 is provided to enable the connection base 300 to be elastically deformed.

Further, referring to fig. 2 to 4, a connection pad 410 is tightly fitted on the transducer 400, the connection pad 410 is fixedly connected to the mounting hole 301, and a plurality of vibration-damping through holes 411 are formed in the connection pad 410. In this embodiment, the amplitude modulator 500 is supported and fixed in the mounting hole 301 through the connection disc 410, so that the contact area between the amplitude modulator 500 and the connection seat 300 can be reduced, and further, the vibration energy of the amplitude modulator 500 can be transferred to the connection seat 300, and a plurality of vibration reduction through holes 411 are further arranged on the connection disc 410, so that the vibration energy transfer of the amplitude modulator 500 can be further reduced through the vibration reduction through holes 411, the vibration energy can be concentrated on the welding head 600, and the loss of the ultrasonic energy can be avoided.

Further, referring to fig. 2 and 4, the number of the connection pads 410 is two, and the connection pads are respectively sleeved at two ends of the amplitude modulator 500. In the present embodiment, by providing two connection pads 410 to fix the modulator 500, the stability of the installation of the modulator 500 is increased.

Further, referring to fig. 4, screw holes are provided at both ends of the amplitude modulator 500 and the ends of the horn 600 and the transducer 400, and stud bolts 510 are provided at both ends of the amplitude modulator 500, and the two stud bolts 510 are respectively connected to the transducer 400 and the horn 600, so that the transducer 400 and the horn 600 are fixedly locked at both ends of the amplitude modulator 500, respectively, and the two connection pads 410 are clamped between the amplitude modulator 500 and the horn 600, respectively, and between the transducer 400 and the amplitude modulator 500, respectively. In this embodiment, the transducer 400 and the modulator 500 are used to lock and fix one connection disc 410, and the welding head 600 and the modulator 500 are used to lock and fix the other connection disc 410. Not only can the connecting disc 410 be well fixed, but also the connecting disc 410 is fixed in a clamping manner, so that the thickness of the connecting disc 410 can be reduced, and the vibration of the amplitude modulator 500 is further reduced to be transmitted to the connection pad 300. In addition, the connecting disc 410 is clamped on the end surface of the amplitude modulator 500, so that vibration friction between the connecting disc 410 and the amplitude modulator 500 in the welding process is avoided, and the amplitude modulator 500 is well protected.

Further, referring to fig. 3 and 4, a connection sleeve 420 is further provided between the two connection pads 410, and the connection sleeve 420 is fixed in the mounting hole 301; the two connection plates 410 are respectively locked and fastened to both ends of the connection sleeve 420. The connecting disc 410 is locked at the end part of the connecting sleeve 420, the connecting sleeve 420 is clamped in the mounting hole 301, the mounting of the connecting disc 410 is facilitated, in addition, the connecting disc 410 is fixed in a mode of fixing the connecting sleeve 420, the outer edge of the connecting disc 410 can be effectively prevented from being contacted with the inside of the mounting hole 301, vibration friction between the connecting disc 410 and the connecting seat is avoided, the connecting seat 300 is protected, and the problem that the connecting disc 410 is deformed due to clamping of the connecting seat 300 can be avoided.

Still further, referring to fig. 3, the welding parts 410 are provided at both upper and lower ends of the welding head 600, so that after one welding part 610 is worn, the connecting seat 300 can be released, and the other welding part 610 is turned to the bottom end by turning the connecting sleeve 420, thereby not only improving the utilization rate of the welding head 600, but also facilitating replacement.

Further, referring to fig. 1 and 2, the supporting base 100 has a mounting side plate 110 and a top plate 120, the top plate 120 is disposed at the top end of the mounting side plate 110, the elevation driving member 200 is disposed at the top of the top plate 120, the guide rail 130 is disposed at the inner side of the mounting side plate 110, and the connecting base 300 is connected to the guide rail 130. When the lifting driving member 200 drives the connecting base 300 to lift, the connecting base 300 slides up and down along the guide rail 130.

Further, referring to fig. 1 and 2, the bottom side of the top plate 120 is further provided with a limiting member 140, the limiting member 140 is provided with a through hole 141, and an adjusting bolt 150 is screwed with the connection seat 300 through the top plate 120 and the through hole 141 in sequence. The upper end of the adjusting bolt 150 is provided with a limiting portion 151 for limiting on the limiting member 140, and the upper end of the limiting portion 151 extends out of the top plate 120. In this embodiment, the adjusting bolt 150 can be used to adjust the downward moving height of the connecting seat 300, specifically, the adjusting bolt 150 is screwed, so that the height of the limiting portion 151 is adjusted, the limiting portion 151 is limited on the limiting member 140, and the descending height position of the connecting seat 300 is adjusted.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (9)

1. An ultrasonic welding machine capable of vibrating transversely comprises a supporting seat, a lifting driving piece, a connecting seat, a transducer, an amplitude modulator and a welding head; the lifting driving piece is arranged on the supporting seat, the lifting driving piece is provided with a lifting end, and the connecting seat is connected with the lifting end of the lifting driving piece; the welding head is characterized in that a mounting hole is formed in the connecting seat, the axis of the mounting hole is perpendicular to a track line of the lifting driving piece for driving the connecting seat to lift, the amplitude modulator is arranged in the mounting hole, the energy converter is arranged at one end of the amplitude modulator, the welding head is arranged at the other end of the amplitude modulator, and the transmission direction of mechanical vibration formed by conversion of the energy converter is perpendicular to the driving direction of the lifting driving piece.

2. The transversely vibrating ultrasonic welder of claim 1, wherein: an open slot is formed in one side of the connecting seat and penetrates through the mounting hole, a plurality of threaded holes are formed in one inner side wall of the open slot, a through hole is formed in the other side of the open slot, and a locking screw penetrates through the through hole and is connected with the threaded holes; the inside wall of mounting hole still is provided with the resilience groove.

3. The transversely vibrating ultrasonic welder of claim 1, wherein: the transducer is tightly sleeved with a connecting disc, the connecting disc is fixedly connected in the mounting hole, and a plurality of vibration reduction through holes are formed in the connecting disc.

4. A transversely vibrating ultrasonic welder according to claim 3, wherein: the number of the connecting discs is two, and the connecting discs are respectively sleeved at two ends of the amplitude modulator.

5. The transversely vibrating ultrasonic welder of claim 4, wherein: screw holes are formed in two ends of the amplitude modulator, screw bolts are arranged in the two ends of the welding head and the end parts of the transducer, the two stud bolts are respectively connected with the transducer and the welding head, and the two connecting discs are respectively clamped between the amplitude modulator and the welding head and between the transducer and the amplitude modulator.

6. The transversely vibrating ultrasonic welder of claim 5, wherein: a connecting sleeve is further arranged between the two connecting discs, and the connecting sleeve is fixed in the mounting hole; the two connecting discs are respectively locked and fixed at the two ends of the connecting sleeve.

7. The transversely vibrating ultrasonic welder of claim 6, wherein: welding parts are arranged at the upper end and the lower end of the welding head.

8. The transversely vibrating ultrasonic welder according to any one of claims 1 to 7, wherein: the supporting seat is provided with an installation side plate and a top plate, the top plate is arranged at the top end of the installation side plate, the lifting driving piece is arranged at the top of the top plate, a guide rail is arranged on the inner side of the installation side plate, and the connecting seat is connected with the guide rail.

9. The transversely vibrating ultrasonic welder of claim 8, wherein: the bottom side of the top plate is also provided with a limiting piece, the limiting piece is provided with a through hole, and an adjusting bolt sequentially passes through the top plate and the through hole and is in threaded connection with the connecting seat; the upper end of the adjusting bolt is provided with a limiting part which is used for limiting the limiting part, and the upper end of the limiting part extends out of the top plate.