Amplitude-change pole and ultrasonic welding machine
By adding a frequency correction process section around the outer circumference of the amplitude transformer and setting a tool relief groove at the bottom of the threaded connection hole, the problem of the inability to correct the frequency of the amplitude transformer is solved, enabling flexible frequency adjustment and extended service life.
Patent Information
- Application Number
- CN202423234396.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing amplitude transformer cannot correct the frequency, making it difficult to meet user needs.
A frequency correction process section is provided around the outer circumference of the amplitude transformer. The shape is changed by cutting the frequency correction process section to correct the frequency. A relief groove is provided at the bottom of the threaded connection hole to improve the stress concentration problem.
It enables flexible correction of the amplitude transformer frequency, avoiding problems such as overheating and bolt breakage caused by frequency mismatch, and extending the service life of the amplitude transformer.
Smart Images
Figure CN223734077U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a horn and ultrasonic welding machine. BACKGROUND
[0002] Ultrasonic welding is to use high frequency vibration wave to transmit to the surface of two objects to be welded, under pressure, make two object surfaces rub each other to form the fusion between molecular layer, ultrasonic welding is to convert 50Hz or 60Hz current into 15KHz, 20KHz, 30KHz or 40KHz current by ultrasonic generator, the high frequency electric energy of conversion is converted into mechanical movement of the same frequency by transducer again, then the mechanical movement is transmitted to the welding head through a horn device that can change amplitude.
[0003] When ultrasonic wave acts on the contact surface of thermoplastic material, high frequency vibration of tens of thousands per second is generated, the high frequency vibration of certain amplitude is transmitted to the welding area by the upper welding part, because the acoustic resistance is large at the welding area, that is, the interface of two welding, so local high temperature is generated, and because the material has poor heat conductivity, it cannot be dissipated in time, and is gathered in the welding area, so that the contact surface of two materials is rapidly melted, and after a certain pressure, it is fused into one, when the ultrasonic wave stops acting, the pressure is maintained for several seconds, so that it is solidified into shape, so a solid molecular chain is formed, and the welding purpose is achieved, and the welding strength can approach the strength of the original material.
[0004] In the ultrasonic welding equipment, the vibration frequency of the horn determines the vibration frequency of the welding head. Once the current horn is completed, its shape determines its vibration frequency, and the frequency cannot be corrected, which is difficult to meet the needs of users. UTILITY MODEL CONTENTS
[0005] The utility model solves the technical problem that the horn in the prior art cannot correct the frequency, and provides a horn and ultrasonic welding machine.
[0006] The utility model solves the above technical problem by the following technical scheme:
[0007] A horn is used for an ultrasonic welding machine, the horn comprises a rod body, a frequency correction process part is arranged on the outer circumferential surface of the rod body, the horn can be frequency corrected by cutting a part of the frequency correction process part, threaded connection holes are arranged on the two end surfaces of the rod body respectively, the threaded connection holes are used for being connected with external components through threaded parts, and a tool withdrawal groove is arranged at the bottom of the threaded connection hole.
[0008] In the scheme, the variable amplitude rod is annularly provided with a frequency correction process part on the outer circumferential surface, and the variable amplitude rod can change the shape by cutting a part of the frequency correction process part, so as to achieve the purpose of correcting the frequency. Since the frequency correction process part is annularly provided on the outer circumferential surface of the rod body, even if partial cutting is performed, the strength of the rod body will not be affected, and the length of the variable amplitude rod is unchanged, which does not affect the assembly of the variable amplitude rod. Moreover, a tool withdrawal groove is arranged at the bottom of the threaded connection hole, which can effectively improve the problem of stress concentration at the bottom of the threaded connection hole, and the variable amplitude rod will not overheat after long-term high-frequency vibration, and the phenomenon of high output amplitude and impedance caused by heating of the variable amplitude rod is also eliminated.
[0009] In addition, since the tool withdrawal groove eliminates the stress concentration of the threaded connection hole, the connecting bolt will not break or the variable amplitude rod will not break after long-term use of the variable amplitude rod, thereby prolonging the service life of the variable amplitude rod.
[0010] Preferably, both sides of the frequency correction process part along the length direction of the rod body can be cut to correct the frequency of the variable amplitude rod.
[0011] In the scheme, the above structure is adopted, so that cutting can be performed on both sides or one side of the frequency correction process part to obtain different frequencies.
[0012] Preferably, both sides of the frequency correction process part along the length direction of the rod body are provided with chamfers.
[0013] In the scheme, the above structure is adopted, so that cutting can be performed at the chamfer, and the frequency correction process part can be made into a circular arc corner when the frequency is not corrected, so that the frequency of the variable amplitude rod remains constant, and sharp edges are also avoided.
[0014] Preferably, the frequency correction process part is convexly arranged on the outer circumferential surface of the rod body.
[0015] In the scheme, the above structure is adopted, so that the frequency correction process part can be annularly cut in the axial direction of the rod body, and the strength of the rod body will not be affected after cutting.
[0016] Preferably, the variable amplitude rod further comprises a sleeve ring, the sleeve ring is sleeved and fixed on the rod body, and the rod body can be fixed on the rack of the ultrasonic welding machine through the sleeve ring.
[0017] In the scheme, the above structure is adopted, and the rod body is fixed on the rack of the ultrasonic welding machine through the sleeve ring. Preferably, the sleeve ring is installed on the rod body in a hot sleeve manner. When the sleeve ring cools down, the sleeve ring can be firmly fixed on the rod body.
[0018] Preferably, the frequency correction process part is arranged on the outer circumferential surface of the rod body.
[0019] In the present application, the plurality of frequency correction process parts can provide a plurality of positions for frequency correction, thereby improving the range of frequency correction.
[0020] Preferably, the amplitude rod further comprises an extension rod, one end of the extension rod is connected to the threaded connection hole of one end of the amplitude rod through a threaded part, and the extension rod is used for extending the rod body.
[0021] In the present application, the extension rod is used for extending the rod body, thereby facilitating the assembly of the amplitude rod.
[0022] Preferably, the rod body is provided with a force applying hole, and the force applying hole is used for inserting a pin shaft.
[0023] In the present application, when the amplitude rod is assembled, the pin shaft can be inserted into the force applying hole, thereby preventing the amplitude rod from rotating, so that the threaded part is screwed in the threaded connection hole at the end of the amplitude rod.
[0024] Preferably, the plurality of force applying holes are arranged along the circumferential direction of the rod body.
[0025] In the present application, the plurality of force applying holes distributed along the circumferential direction of the rod body facilitate the insertion of the pin shaft in multiple directions to fix the rod body, thereby improving the fixing effect, and the plurality of force applying holes can provide a plurality of force applying holes for selective insertion of the pin shaft, thereby facilitating the operation.
[0026] An ultrasonic welding machine comprises the amplitude rod as described above.
[0027] On the basis of the common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily, thereby obtaining each preferred embodiment of the present application.
[0028] The positive progress effect of the present application lies in that the amplitude rod is provided with the frequency correction process part on the outer circumferential surface, the amplitude rod can change the shape by cutting a part of the frequency correction process part, thereby achieving the purpose of correcting the frequency, since the frequency correction process part is arranged on the outer circumferential surface of the rod body, even if a part is cut, the strength of the rod body is not affected, and the length of the amplitude rod is unchanged, thereby not affecting the assembly of the amplitude rod. Furthermore, the tool withdrawal groove is arranged at the bottom of the threaded connection hole, thereby effectively improving the problem of stress concentration at the bottom of the threaded connection hole, and the amplitude rod does not appear to be hot after long-time high-frequency vibration, and the phenomenon of high output amplitude and impedance caused by the heating of the amplitude rod is eliminated.
[0029] Furthermore, because the relief groove eliminates stress concentration in the threaded connection hole, the luffing rod will not experience breakage of the connecting bolts or the luffing rod itself after prolonged use, thus extending the service life of the luffing rod. Attached Figure Description
[0030] Figure 1 This is a cross-sectional structural diagram of the amplitude transformer according to an embodiment of the present invention.
[0031] Figure 2 This is a partial structural schematic diagram of the ultrasonic welding machine according to an embodiment of the present invention.
[0032] Explanation of reference numerals in the attached figures:
[0033] Amplitude bar 10
[0034] Rod body 1
[0035] Frequency Correction Process Department 2
[0036] Threaded connection hole 3
[0037] Unsinking Groove 4
[0038] Chamfer 5
[0039] Ring 6
[0040] Force hole 7
[0041] Extension rod 20
[0042] Welding head 30
[0043] Transducer 40 Detailed Implementation
[0044] The present invention will be described more clearly and completely below by way of embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments described herein.
[0045] like Figure 1 and Figure 2 As shown, this embodiment discloses an amplitude transformer 10 used in an ultrasonic welding machine. The amplitude transformer 10 includes a rod body 1. A frequency correction process section 2 is provided around the outer circumference of the rod body 1. The amplitude transformer 10 can perform frequency correction by cutting a portion of the frequency correction process section 2. Threaded connection holes 3 are respectively provided on both ends of the rod body 1. The threaded connection holes 3 are used to connect with external components through threaded parts. A tool relief groove 4 is provided at the bottom of the threaded connection holes 3.
[0046] In the embodiment, the amplitude lever 10 is annularly provided with the frequency correction process part 2 on the outer circumferential surface, and the amplitude lever 10 can change the shape by cutting a part of the frequency correction process part 2, so as to achieve the purpose of correcting the frequency. Since the frequency correction process part 2 is annularly provided on the outer circumferential surface of the lever body 1, even if a part is cut, the strength of the lever body 1 will not be affected, and the length of the amplitude lever 10 is unchanged, which does not affect the assembly of the amplitude lever 10. Moreover, the relief groove 4 is arranged at the bottom of the threaded hole 3, which can effectively improve the stress concentration problem at the bottom of the threaded hole 3, and the amplitude lever 10 will not overheat after long-time high-frequency vibration, and the phenomenon of high output amplitude and impedance caused by the heating of the amplitude lever 10 is eliminated.
[0047] In addition, since the relief groove 4 eliminates the stress concentration of the threaded hole 3, the amplitude lever 10 will not cause the connection bolt to break or the amplitude lever 10 to break itself after long-time use, thereby prolonging the service life of the amplitude lever 10.
[0048] When it is necessary to correct the frequency of the amplitude lever 10, a part of the frequency correction process part 2 can be cut along the axial direction of the lever body 1, so as to realize the frequency adjustment of the amplitude lever 10.
[0049] In an embodiment, by cutting a part of the frequency correction process part 2, the full-wave 1:1.5 amplitude lever is successfully adjusted to a full-wave 1:1.25 amplitude lever.
[0050] As shown in Figure 1 , both sides of the frequency correction process part 2 along the length direction of the lever body 1 can be cut to correct the frequency of the amplitude lever 10. The two sides of the frequency correction process part 2 are configured to be cut, which facilitates cutting on both sides or one side of the frequency correction process part 2 to obtain different frequencies.
[0051] As shown in Figure 1 , both sides of the frequency correction process part 2 along the length direction of the lever body 1 are provided with chamfers 5, so as to facilitate cutting at the chamfers 5, and also facilitate making the frequency correction process part 2 into a circular arc corner when the frequency is not corrected, so as to keep the frequency of the amplitude lever 10 constant and avoid scratching by sharp edges.
[0052] As shown in Figure 1 , the frequency correction process part 2 is convexly arranged on the outer circumferential surface of the lever body 1, which facilitates cutting the frequency correction process part 2 along the axial direction of the lever body 1, and the cutting will not affect the strength of the lever body 1.
[0053] As shown in Figure 1As shown, the amplitude transformer 10 also includes a collar 6, which is sleeved and fixed to the rod body 1. The rod body 1 can be fixed to the frame of the ultrasonic welding machine via the collar 6. Preferably, the collar 6 is installed on the rod body 1 using a heat-shrink method. After the collar 6 cools, it can be firmly fixed to the rod body 1.
[0054] In another embodiment, there are multiple frequency correction process units, which are spaced apart on the rod body. Multiple frequency correction process units can provide multiple locations for the user to perform frequency correction, thereby increasing the range of frequency correction.
[0055] like Figure 2 As shown, in this embodiment, the luffing rod 10 further includes an extension rod 20. One end of the extension rod 20 is connected to a threaded connection hole 3 at one end of the luffing rod 10 via a threaded component, and is used to extend the rod body 1. The extension rod 20 is used to extend the rod body 1, which facilitates the assembly of the luffing rod 10.
[0056] like Figure 1 As shown, the rod body 1 is provided with a force application hole 7, which is used to insert a pin. When assembling the luffing rod 10, the pin can be inserted into the force application hole 7 to prevent the luffing rod 10 from rotating, so that the threaded part can be screwed into the threaded connection hole 3 at the end of the luffing rod 10.
[0057] Preferably, there are multiple force-applying holes 7, which are spaced apart along the circumferential direction of the rod body 1. The multiple force-applying holes 7 distributed along the circumferential direction of the rod body 1 facilitate the insertion of pins in multiple directions to fix the rod body 1, thereby improving the fixing effect. At the same time, the multiple force-applying holes 7 provide multiple directions for selective insertion of pins, which is convenient for operation.
[0058] In this embodiment, the frequency of the amplitude transformer 10 can also be adjusted by cutting the end of the rod body 1.
[0059] like Figure 2 As shown, this embodiment also discloses an ultrasonic welding machine, which includes an amplitude transformer, a welding head 30, and a transducer 40 as described above. The welding head 30 and the transducer 40 are respectively installed at both ends of the amplitude transformer 10. The transducer 40 is used to convert electrical energy into mechanical energy, and the welding head 30 generates high-frequency vibration under the action of the transducer 40 and the amplitude transformer 10 to perform welding operations.
[0060] In the description herein, it is to be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like refer to the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0061] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.
Claims
1. A horn for use in an ultrasonic welding machine, characterized by, The horn includes a horn body, a frequency correction process portion is annularly arranged on an outer circumferential surface of the horn body, the horn is capable of being frequency corrected by cutting a part of the frequency correction process portion, threaded connection holes are respectively arranged at two end surfaces of the horn body, the threaded connection holes are used for being connected with external components through threaded members, and a tool withdrawal groove is arranged at a bottom of each threaded connection hole.
2. The amplitude rod of claim 1, wherein, Both sides of the frequency correction process portion along a length direction of the horn body are capable of being cut to perform frequency correction of the horn.
3. The amplitude rod of claim 1, wherein, Both sides of the frequency correction process portion along the length direction of the horn body are provided with chamfers.
4. The amplitude rod of claim 1, wherein, The frequency correction process portion is protruded on the outer circumferential surface of the horn body.
5. The amplitude rod of claim 1, wherein, The horn further includes a sleeve ring, the sleeve ring is sleeved and fixed on the horn body, and the horn body is capable of being fixed on a rack of an ultrasonic welding machine through the sleeve ring.
6. The horn of claim 1 wherein, The frequency correction process portion is provided in a plurality of numbers, and the plurality of frequency correction process portions are arranged at intervals on the horn body.
7. The amplitude rod of claim 1, wherein, The horn further includes an extension rod, one end of the extension rod is connected to the threaded connection hole at one end of the horn through a threaded member, and the horn body is capable of being lengthened.
8. The amplitude rod of claim 1, wherein, A force applying hole is arranged on the horn body, and the force applying hole is used for inserting a pin shaft.
9. The amplitude rod of claim 8, wherein, The force applying hole is provided in a plurality of numbers, and the plurality of force applying holes are arranged at intervals along a circumferential direction of the horn body.
10. An ultrasonic welding machine characterized by, The ultrasonic welding machine includes the horn according to any one of claims 1-9.