CN204975671U - Welding head and ultrasonic welding machine thereof - Google Patents
Welding head and ultrasonic welding machine thereof Download PDFInfo
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- CN204975671U CN204975671U CN201520483491.XU CN201520483491U CN204975671U CN 204975671 U CN204975671 U CN 204975671U CN 201520483491 U CN201520483491 U CN 201520483491U CN 204975671 U CN204975671 U CN 204975671U
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- welding head
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Abstract
The utility model discloses a welding head and ultrasonic welding machine thereof, including driving motor, welding head main part, fastener, transducer subassembly and chopper, the welding head main part is connected with fastener, transducer subassembly and chopper, the motion of driving motor drive welding head main part. Wherein, the fastener through an elastic rotation portion with the welding head main part is connected, follows elastic rotation portion is rotatory, the welding head is still including driving fastener wobbling fastener swing mechanism, the fastener swing mechanism include: a canceling release mechanical system that is used for driving the fastener and winds the rotatory actuating mechanism of elastic rotation portion and be used for restoring to the throne fastener to initial position, actuating mechanism and canceling release mechanical system all set up in fastener one end. Fastener swing mechanism's through extra setting rotation realizes the control to tailfiber length, the effectual machine stability that has improved.
Description
Technical field
The utility model relates to technical field of welding equipment, particularly relates to a kind of welding head and ultrasonic welding machine thereof.
Background technology
At present, supersonic welding line method is widely used in various electronic devices and components, in the lead welding of integrated circuit etc., the lead as the above devices such as big or middle pliotron, FET, various power model, big current fast recovery diode, Schottky triode, controllable silicon, IGBT and particular semiconductor power device welds.
Existing ultrasonic welding machine mainly comprises welding head, workbench, material paying-off or receiving device, actinobacillus device and control system.As shown in Figure 2, be existing welding head wire drawing view.Welding head is formed by combining by drive motors 5, rotation shell fragment 4, transducer assemblies 3, wire clamp 6 and moving block 10.Several parts such as transducer assemblies 3, drive motors 5, wire clamp 6, detecting sensor 9 link together and ensure enough rigidity by moving block 10, and are fixed on headstock 11 by shell fragment group 4.
Specific works process is as follows: drive motors 5 drives transducer assemblies 3 and chopper 2, and the spring plate 4 that rotates carries out Small-angle Rotation.Detecting sensor 9 completes and detects and feedback the position of drive motors, and when controlling welding by signal feedback, chopper 2 is applied to pressure on workpiece 1 and speed.Transducer assemblies 3 generally comprises can the ultrasonic transformer of output ultrasonic wave.
As shown in Figure 2, existing welding head welded condition schematic diagram, ultrasonic transformer output ultrasonic wave is to chopper 2 and move downward workpiece 1 upper surface with certain speed together with welding wire 8, and ultrasonic transformer applies certain pressure and exports ultrasonic vibration simultaneously, makes welding wire 8 and workpiece 1 complete welding action.
In welding processing process, wire clamp 6 only does opened/closed action, coordinates transducer assemblies 3 to rotate wire feed and produces the action of welding tailfiber.When welding processing completes, the welding tailfiber that welding wire 8 is formed by ignition device 7 burns and melts balling-up.
When adopting above-mentioned ultra-sonic welded mode, the tailfiber length of welding wire 8 only to the angle that transducer assemblies 3 swings and now welding wire 8 whether be pressed down relevant.
When welding wire 8 is not pressed down, the amplitude of fluctuation correlation of tailfiber length and transducer assemblies 3.When welding wire 8 is pressed down, then welding wire can be blown by unwrapping wire blowning installation 12 and fly, and can cause welding action because do not have tailfiber melt balling-up for burning and shut down next time.
As mentioned above, existing welding head, by the restriction of its structure, controls to ensure when welding completes not fly line by the tailfiber intensity of welding wire 8 completely to tailfiber.And existing welding wire general diameter is at about 0.02mm; very tiny easily broken; therefore changes in material or other reason are all very easy to cause to break cause fly line and shut down; therefore the stability of machine is difficult to ensure with to difference raw-material adaptability, and the easy like this reduction of user's capacity efficiency and the product quality problem of causing increases.
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide kind of welding head and ultrasonic welding machine thereof, is intended to solve existing welding head tailfiber length and is difficult to control, easily occur that fly line phenomenon causes the problem of shutting down.
The utility model discloses a kind of ultrasonic welding machine welding head on the one hand, comprise drive motors, welding head main body, wire clamp, transducer assemblies and chopper, welding head main body is connected with wire clamp, transducer assemblies and chopper, and drive motors drives welding head bulk motion.Wherein, described wire clamp is connected with described welding head main body by an elastic rotation portion, rotates along described elastic rotation portion; Described welding head also comprises the wire clamp swing mechanism driving wire clamp to rotate, and described wire clamp swing mechanism comprises: the driving mechanism rotated around elastic rotation portion for driving wire clamp and for the resetting-mechanism of wire clamp to initial position that reset; Described driving mechanism and resetting-mechanism are all arranged on wire clamp one end.
Further, described wire clamp is also provided with the position-limit mechanism for limiting the wire clamp anglec of rotation.
Further, described position-limit mechanism specifically comprises the gag lever post of preset length and protruding to top; Described driving mechanism and resetting-mechanism are arranged on side, elastic rotation portion, and described gag lever post is arranged on the opposite side in elastic rotation portion, are arranged in described welding head main body to top projection; Described gag lever post abuts against after wire clamp turns over default angle Yu to pushing up projection.
Further, described driving mechanism is specially the electromagnet driving described wire clamp to rotate.
Further, described wire clamp independently performs unlatching and closed action.
The utility model also discloses a kind of ultrasonic welding machine on the other hand, and wherein, described ultrasonic welding machine uses welding head as above.
Beneficial effect: a kind of welding head that the utility model provides and ultrasonic welding machine thereof, the intensity not needing to rely on merely welding wire to the control of tailfiber length is realized by the rotation of the wire clamp swing mechanism additionally arranged, ensure that all having tailfiber to sinter balling-up after each welding action completes welds action for the next one, effectively raises mechanical stability against short circuit and improves production capacity and components and parts output quality further.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the welded condition of prior art welding head.
Fig. 2 is the schematic diagram of the stamp tailfiber state of prior art welding head.
Fig. 3 is the schematic diagram of the welded condition of the welding head of the utility model specific embodiment.
Fig. 4 is the schematic diagram of the stamp tailfiber state of the welding head of the utility model specific embodiment.
Fig. 5 is the perspective view of the welding head of the utility model specific embodiment.
Detailed description of the invention
The utility model provides a kind of welding head and ultrasonic welding machine thereof.For making the purpose of this utility model, technical scheme and effect clearly, clearly, below the utility model is further described.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 5, be a kind of welding head of the utility model specific embodiment.
Described welding head comprises: the parts such as drive motors, welding head main body, wire clamp, transducer assemblies, chopper (wherein, transducer assemblies and chopper can form transducer weld assembly A19 and weld function etc. to complete), wire clamp swing mechanism, blowning installation A12.Above-mentioned welding head is at the described wire clamp swing mechanism of application and under realizing the prerequisite that wire clamp independently swings, can according to actual needs and specific increase or some parts of economization such as designing requirement, and the welding head cited by being not limited in accompanying drawing or description.
Described welding head main body is connected with wire clamp, transducer assemblies, chopper and wire clamp swing mechanism respectively.Welding head main body is connected with fixed block A11 by rotating shell fragment A4, driven by drive motors A5 and carry out rotating (specifically can adopt any suitable modes such as hinged or rotating shaft connection, provide certain rotary damping by rotation shell fragment A4) around described rotation shell fragment A4.In this specific embodiment, the shell fragment that described rotation shell fragment A4 can use the right-angled intersection of many groups to install.
Similar with the method for attachment of above-mentioned rotation shell fragment A4, described wire clamp A6 is connected (concrete by elastic rotation portion A14 with described welding head main body (i.e. A10), the mode that rotating shaft can be adopted to connect, provides rotary damping by shell fragment), can rotate around elastic rotation portion A14.
Described wire clamp swing mechanism A17 then specifically comprises: resetting-mechanism A15, driving mechanism A16, stopping means A13 and elastic rotation portion A14.Concrete, described driving mechanism A16 can be DM.Can certainly be other any suitable drives structure.Described resetting-mechanism A15 then can adopt resetting-mechanism (such as, inside establish the flexible restoring organ of spring, or simply described wire clamp A6 is limited in the position limitation bar in predetermined initial position) conventional in prior art.
Described driving mechanism A16 and resetting-mechanism A15 is all arranged on one end of wire clamp A6.Driving mechanism A16 drives wire clamp A6 to rotate along described elastic rotation portion A14.Resetting-mechanism A15 then drives wire clamp A6 to be reset to initial position.
Wire clamp A6 for clamping welding wire A8 is driven by above-mentioned driving mechanism A16, moves along above-below direction in figure, and the opened/closed action in conjunction with wire clamp A6 completes the operation such as wire drawing, wire feed.Certainly, described wire clamp A6 can with the control system separate connection of welding head, independent perform the operation of wire clamp opened/closed.
Described welding head specific operation process is wire drawing-welding operation that circulation performs.Described wire drawing-
1welding operation specifically can comprise stamp tailfiber action (Fig. 4) and welding action (Fig. 3).Wherein, in the action of described stamp tailfiber, wire clamp A6's is occur in welding head main body A 10 along in the process of rotating shell fragment A4 swing to lower swing.
The concrete operations of two actions are as follows:
Stamp tailfiber action: wire clamp A6 closes, driving mechanism A16 drives wire clamp A6 to rotate around elastic rotation portion A14, stabs out the welding wire A8 of one section of certain length.Then, the welding tailfiber that welding wire A8 is formed burns and melts balling-up by ignition device A7 after a upper welding action completes.
Welding action: drive motors A5 drives transducer assemblies A3 (comprising ultrasonic transformer etc.), the chopper A2 of welding head, wire clamp and wire clamp swing mechanism, the spring plate A4 that rotates down carries out Small-angle Rotation from starting point (peak), chopper A2 is made to contact workpiece, now ultrasonic transformer exports ultrasonic to chopper, welding wire and workpiece are welded together under ultrasonic and pressure effect, lifts again after having welded and got back to 2 initial points (peak).
Above-mentioned two operational motions are the processes successively repeated, and the action of stamp tailfiber is in the process of welding head main body A 10 along rotation shell fragment A4 swing.Certainly, the reasonable conversion made the order etc. of the operations in above-mentioned two actions is also in protection domain of the present utility model.
In addition, detecting sensor A9 completes and detects and feedback the position of drive motors, and when controlling to weld by signal feedback, chopper A2 is applied to pressure on workpiece A1 and speed.Transducer assemblies A3 comprises the ultrasonic transformer of output ultrasonic wave.
Ultrasonic transformer output ultrasonic wave is to chopper A2 and move downward workpiece A1 upper surface with certain speed together with welding wire A8, apply certain pressure and export ultrasonic vibration, making welding wire A8 and workpiece A1 complete welding action (chopper namely shown in Fig. 3 and the state of absorption surface).
After welding action completes, wire clamp A6 unclamps, and welding head main body and wire clamp A6 all turn round and reset to initial position, enters in next wire drawing-welding operation circulation.
In preferred embodiment of the present utility model, the position-limit mechanism A14 described wire clamp A6 is also provided with for limiting the wire clamp anglec of rotation is all identical to ensure each anglec of rotation of wire clamp.Can ensure so eachly to draw tailfiber action all can reserve the identical tailfiber of length, improve quality and the mechanical stability against short circuit of product further.
Described position-limit mechanism A14 specifically can adopt structure as shown in Figures 3 and 4, comprising: the gag lever post of preset length and protruding to top.Described driving mechanism and resetting-mechanism are arranged on the side of elastic rotation portion A14.Described gag lever post is arranged on the opposite side in elastic rotation portion, is arranged in described welding head main body (being specifically as follows A10 as shown in figure 3 or 4) top projection.Described gag lever post abuts against thus realizes limit function after wire clamp turns over default angle Yu to pushing up projection.Described default angle is the anglec of rotation at every turn drawing tailfiber to operate.
Above-mentioned position-limit mechanism structure is simple, reliable, can be good at the identical length etc. ensureing at every turn to pull out tailfiber.
The invention also discloses a kind of ultrasonic welding machine.Described ultrasonic welding machine uses welding head as above.Described welding head adopts any suitable connected mode (such as bolt, buckle) to be fixed in the frame of ultrasonic welding machine.
In sum, compared with traditional welding head section mechanism, the wire clamp swing mechanism of the welding head additional that the utility model provides make the tailfiber length of welding wire A8 only and the angle of the swing of wire clamp swing mechanism A17 have relation.Decided the length of tailfiber by the default wire clamp pendulum angle of wire clamp swing mechanism A17, well avoid the generation of the phenomenons such as fly line, largely can eliminate the shutdown because raw material or other reason cause, very large raising mechanical stability against short circuit and production efficiency.In addition, also by arranging simple position-limit mechanism, ensureing the consistent of each anglec of rotation thus making to draw tailfiber to operate tailfiber identical length etc. at every turn.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills, can be improved according to the above description or convert, all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (6)
1. a welding head, comprise drive motors, welding head main body, wire clamp, transducer assemblies and chopper, welding head main body is connected with wire clamp, transducer assemblies and chopper, drive motors drives welding head bulk motion, it is characterized in that, described wire clamp is connected with described welding head main body by an elastic rotation portion, rotates along described elastic rotation portion;
Described welding head also comprises the wire clamp swing mechanism driving wire clamp to rotate, and described wire clamp swing mechanism comprises: the driving mechanism rotated around elastic rotation portion for driving wire clamp and for the resetting-mechanism of wire clamp to initial position that reset;
Described driving mechanism and resetting-mechanism are all arranged on wire clamp one end.
2. welding head according to claim 1, is characterized in that, described wire clamp is also provided with the position-limit mechanism for limiting the wire clamp anglec of rotation.
3. welding head according to claim 2, is characterized in that, described position-limit mechanism specifically comprises the gag lever post of preset length and protruding to top;
Described driving mechanism and resetting-mechanism are arranged on side, elastic rotation portion, and described gag lever post is arranged on the opposite side in elastic rotation portion, are arranged in described welding head main body to top projection;
Described gag lever post abuts against after wire clamp turns over default angle Yu to pushing up projection.
4. welding head according to claim 1, is characterized in that, described driving mechanism is specially the electromagnet driving described wire clamp to rotate.
5. welding head according to claim 1, is characterized in that, described wire clamp independently performs unlatching and closed action.
6. a ultrasonic welding machine, is characterized in that, the welding head as described in described ultrasonic welding machine use is as arbitrary in claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520483491.XU CN204975671U (en) | 2015-07-06 | 2015-07-06 | Welding head and ultrasonic welding machine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520483491.XU CN204975671U (en) | 2015-07-06 | 2015-07-06 | Welding head and ultrasonic welding machine thereof |
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| Publication Number | Publication Date |
|---|---|
| CN204975671U true CN204975671U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520483491.XU Active CN204975671U (en) | 2015-07-06 | 2015-07-06 | Welding head and ultrasonic welding machine thereof |
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| CN (1) | CN204975671U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814623A (en) * | 2021-11-23 | 2021-12-21 | 大族激光科技产业集团股份有限公司 | Welding force correction method and correction device |
| CN115430900A (en) * | 2022-09-02 | 2022-12-06 | 上饶市立景创新科技有限公司 | Gold thread welding machine |
-
2015
- 2015-07-06 CN CN201520483491.XU patent/CN204975671U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814623A (en) * | 2021-11-23 | 2021-12-21 | 大族激光科技产业集团股份有限公司 | Welding force correction method and correction device |
| CN115430900A (en) * | 2022-09-02 | 2022-12-06 | 上饶市立景创新科技有限公司 | Gold thread welding machine |
| CN115430900B (en) * | 2022-09-02 | 2023-09-22 | 上饶市立景创新科技有限公司 | Gold thread welding machine |
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