CN217224026U

CN217224026U - Ultrasonic welding machine

Info

Publication number: CN217224026U
Application number: CN202220119183.9U
Authority: CN
Inventors: 雷广伟; 高丰才
Original assignee: Guangdong Kezhong Technology Co ltd; KEPU ULTRASONIC ELECTRONIC TECHNOLOGICAL Ltd
Current assignee: Guangdong Kezhong Technology Co ltd; KEPU ULTRASONIC ELECTRONIC TECHNOLOGICAL Ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-08-19
Anticipated expiration: 2032-01-17

Abstract

The application discloses an ultrasonic welding machine which comprises a machine base, a guide assembly, a welding assembly and a driving assembly, wherein the machine base comprises a bottom plate and a supporting frame, and the supporting frame is installed on the bottom plate; the guide assembly comprises a guide rail, a sliding block mounting plate and an extension block, the guide rail is fixedly arranged on the support frame, the sliding block mounting plate is connected with the guide rail, and the extension block is fixedly arranged on the sliding block mounting plate; the welding assembly comprises a welding table, a tool head, an amplitude transformer and a transducer, wherein the welding table is arranged on the bottom plate, one end of the amplitude transformer is connected with the tool head, the other end of the amplitude transformer is connected with the transducer, and the tool head, the amplitude transformer and the transducer are fixedly arranged on the sliding block mounting plate; on drive assembly installation supporting rack, drive assembly drives actuating cylinder one end and is connected with the instrument head including driving actuating cylinder and displacement inductor, and the displacement inductor is connected with driving actuating cylinder and slider mounting panel electricity, drives actuating cylinder driving tool head and moves towards the welding bench along the guide rail to through displacement inductor control instrument head displacement, prevent the too big emergence shatter problem of atress when welding thinner material.

Description

Ultrasonic welding machine

Technical Field

The utility model relates to an ultrasonic bonding field especially relates to an ultrasonic welding machine.

Background

The ultrasonic welding technology is that electric energy is converted into high-frequency vibration mechanical energy through an ultrasonic transducer, and then the high-frequency vibration mechanical energy is transmitted to a tool head in an ultrasonic mode through an amplitude transformer to complete welding of a workpiece. The ultrasonic welding technology is widely applied to various industries at present, and can be applied to the application of automatic production lines of new energy lithium battery industries.

At present in the automated production process, the welding assembly of ultrasonic welding machine commonly used is various, and the installation requirement is high, and the setting of tool bit level leads to difficult regulation, and when welding through the welding assembly, the moving distance of unable accurate control tool bit, and the welding is the too big and bad phenomenon of welding appears that the pressure that leads to probably appearing the face of weld easily at the thinner material of welding.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an ultrasonic welding machine has solved the too big welding quality problem that arouses of atress when the welding of tool head.

The utility model provides an ultrasonic welding machine, include:

the engine base comprises a bottom plate and a supporting frame, and the supporting frame is arranged on the bottom plate;

the guide assembly comprises a guide rail, a sliding block mounting plate and an extension block, the guide rail is fixedly arranged on the support frame, the sliding block mounting plate is connected to the guide rail in a sliding mode, and the extension block is fixed on the sliding block mounting plate;

the welding assembly comprises a welding table, a tool head, an amplitude transformer and a transducer, wherein the welding table is arranged on the bottom plate and is positioned on one side of the supporting frame, one end of the amplitude transformer is connected with the tool head, the other end of the amplitude transformer is connected with the transducer, the tool head is fixedly arranged on the slider mounting plate, and the tool head and the welding table are arranged on the same side; and

drive assembly, drive assembly installs on the supporting rack, drive assembly is including driving actuating cylinder and displacement inductor, drive actuating cylinder one end with the tool head is connected, the displacement inductor respectively with drive actuating cylinder and slider mounting panel electricity and be connected, it drives actuating cylinder drive the tool head is followed the guide rail orientation the direction of welding bench removes, and passes through the displacement inductor control the displacement distance of tool head.

Optionally, the tool head includes a welding part and a pressing part, the pressing part is fixed on the slider mounting plate, one end of the pressing part is connected with the welding part, and the welding part is disposed close to the welding table.

Optionally, the driving assembly further comprises a pressure sensor connected with the driving cylinder.

Optionally, the welding assembly further includes a female rod, the female rod is disposed along a direction perpendicular to the guide rail, one end of the female rod is perpendicularly connected to the middle of the welding member, and the other end of the female rod is connected to the horn.

Optionally, the pressing piece is detachably connected with the welding piece, and the welding piece is detachably connected with the female rod.

Optionally, the pressing piece with the welding is the screw connection, the welding with the female pole is the screw connection, the pressing piece includes screw, fixed part and clamping part, the fixed part with clamping part fixed connection, be equipped with lockhole and double-layered groove in the clamping part, the welding includes connecting portion, connecting portion install in press from both sides the inslot, press from both sides the groove and pass through the screw with the lockhole cooperation is connected in order to right connecting portion press from both sides tight regulation.

Optionally, the clamping portion includes a first clamping block and a second clamping block, the first clamping block and the second clamping block are arranged on the fixing portion at intervals, a gap between the first clamping block and the second clamping block forms the clamping groove, and the locking hole penetrates through the first clamping block and the second clamping block.

Optionally, one end of the fixing part, which is far away from the welding part, is provided with a plurality of internal thread holes, and the outer surface of the fixing part is provided with a clamping groove.

Optionally, the supporting frame includes a first fixing plate, a second fixing plate, a third fixing plate and an auxiliary plate, the first fixing plate and the second fixing plate are disposed on the bottom plate at an interval, the guide rail is fixedly disposed on the first fixing plate, a first through hole is formed in the first fixing plate, the extension block and the horn are disposed in the first through hole, one end of the auxiliary plate is fixedly connected to one end of the extension block, the other end of the auxiliary plate is fixedly connected to the horn, a second through hole is formed in the second fixing plate, the transducer is disposed in the second through hole, the third fixing plate is disposed on one side of the first fixing plate and one side of the second fixing plate far away from the bottom plate, and the driving cylinder is mounted on the third fixing plate.

The application still provides an ultrasonic welding machine as above, the welding bench includes end module and regulating plate, regulating plate demountable installation in on the bottom plate, end module fixed mounting is in on the regulating plate.

Compared with the prior art, the ultrasonic welding machine that this application embodiment provided's beneficial effect: the displacement sensor in the ultrasonic welding machine is used for accurately controlling the displacement of the sliding block mounting plate on the guide rail, so that the moving distance of the tool head connected to the sliding block mounting plate is accurately controlled, the problem that the vibration crack occurs due to overlarge stress when a thin material is welded is effectively solved, and the welding quality of the ultrasonic welding machine is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain drawings of other embodiments based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an ultrasonic welding machine according to an embodiment of the present application.

Fig. 2 is a schematic structural view of the ultrasonic welding machine in fig. 1 from another perspective.

FIG. 3 is a schematic view of a portion of the weld stack of the ultrasonic welder of FIG. 1.

The reference numbers illustrate:

100. a machine base; 110. a base plate; 120. a support frame; 121. a first fixing plate; 1211. a first through hole; 122. a second fixing plate; 1221. a second through hole; 123. a third fixing plate; 124. an auxiliary plate; 200. a guide assembly; 210. a guide rail; 220. a slider mounting plate; 230. an extension block; 300. welding the assembly; 310. a welding table; 311. a base mold member; 312. an adjusting plate; 320. a tool head; 321. a welding part; 3211. a connecting portion; 322. a pressing member; 3221. a screw; 3222. a fixed part; 3223. a clamping portion; 322a, a lock hole; 322b, a clip groove; 322c, a first clamping block; 322d, a second clamping block; 322e, a threaded hole; 322f, a card slot; 330. an amplitude transformer; 331. a second auxiliary mounting surface; 340. a transducer; 341. an auxiliary mounting hole; 350. a female rod; 351. a first auxiliary mounting surface; 400. a drive assembly; 410. a driving cylinder; 420. a displacement sensor; 430. a pressure sensor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Referring to fig. 1 and fig. 2, a schematic structural diagram of an ultrasonic welding machine is shown. An ultrasonic welding machine includes a frame 100, a guide assembly 200, a welding assembly 300, and a drive assembly 400. The housing 100 includes a base plate 110 and a support bracket 120, and the support bracket 120 is mounted on the base plate 110. The guide assembly 200 includes a guide rail 210, a slider mounting plate 220 and an extension block 230 in a concave shape, the guide rail 210 is fixedly disposed on the support frame 120, the slider mounting plate 220 is slidably connected to the guide rail 210, and the extension block 230 is fixed to the slider mounting plate 220. The welding assembly 300 comprises a welding stage 310, a tool head 320, a horn 330, and a transducer 340, wherein the welding stage 310 is mounted on the base plate 110 and located on one side of the support frame 120, one end of the horn 330 is connected to the tool head 320, the other end is connected to the transducer 340, the tool head 320 is fixedly disposed on the slider mounting plate 220, and the tool head 320 and the welding stage 310 are disposed on the same side. The driving assembly 400 is mounted on the supporting frame 120, the driving assembly 400 includes a driving cylinder 410 and a displacement sensor 420, one end of the driving cylinder 410 is connected to the tool head 320, the displacement sensor 420 is electrically connected to the driving cylinder 410 and the slider mounting plate 220, respectively, the driving cylinder 410 drives the tool head 320 to move along the guide rail 210 toward the welding stage 310, and the moving distance of the tool head 320 is controlled by the displacement sensor 420.

The ultrasonic welding principle is a special method for connecting the same kind of metal or different kinds of metal by using mechanical vibration energy of ultrasonic frequency. When the metal is subjected to ultrasonic welding, current is not transmitted to a workpiece to be machined, a high-temperature heat source is not applied to the workpiece, and solid-state welding is realized under the condition that a base metal is not melted. In the present embodiment, specifically, the transducer 340 of the welding assembly 300 generates several ten thousand times per second of high-frequency vibration when operating, and amplifies the high-frequency vibration by the amplitude transformer 330 to achieve a certain amplitude, and then the tool head 320 transmits the vibration energy to the designated welding area of the welding station 310, so that a local high temperature is generated due to the large acoustic resistance at the interface of the two welds in the welding area; in addition, the driving cylinder 410 can provide a certain pressure to the tool head 320, and the tool head 320 can move along the direction of the guide rail 210 toward the workpiece to be machined on the welding table 310 after receiving the pressure, and can be stopped after effectively controlling the tool head 320 to move for a set distance under the control of the displacement sensor 420; the workpieces to be processed are fused into a whole under the action of high temperature and pressure. After the ultrasonic wave stops acting, the pressure is kept for several seconds, and then the welding area of the workpiece to be processed is solidified and formed, so that a firm molecular chain is formed, the purpose of welding is achieved, and the welding strength can be close to the strength of raw materials.

It should be noted that, in this embodiment, the displacement sensor 420 is a magnetic grid displacement sensor, and the working principle thereof is that the magnetic grid displacement sensor obtains a displacement pulse reading through the actual displacement on the magnetic grid ruler, and transmits the displacement pulse signal to the driving cylinder 410 through the sensing signal transmission line, so as to control the working state of the driving cylinder 410, further control the consistency of the descending distance of the tool head 320, and effectively improve the welding quality.

With continued reference to fig. 1 and 2, in an embodiment, the tool head 320 includes a welding member 321 and a pressing member 322, the pressing member 322 is fixed on the slider mounting plate 220, one end of the pressing member 322 is connected to the welding member 321, and the welding member 321 is disposed near the welding station 310. The welding stage 310, the welding member 321, and the pressing member 322 may be made of different materials according to actual requirements, and then assembled by welding or mounting. For example, the welding part 321 is a key part directly rubbed with a welding object, and the welding part 321 is in a long strip structure for convenience of welding, has a small volume, and can be made of alloy steel materials with high hardness and good wear resistance; the welding table 310 and the pressing piece 322 can be made of common tool steel which is cheap and easy to process, so that the use requirement of the ultrasonic welding machine can be met, and the overall manufacturing cost can be reduced. The shape of the pressing tool 322 includes, but is not limited to, various shapes such as a cylinder, a cube, a truncated cone, and a square step, and is not particularly limited herein. It should be noted that the end of the welding part 321 for welding is provided with a welding insection, and the shape of the welding insection includes, but is not limited to, a mesh shape, a straight line shape, etc., for example, a straight line strip shape, a mesh circle shape, a straight line dot shape, and is not limited herein.

With continued reference to fig. 2, in one embodiment, the driving assembly 400 further includes a pressure sensor 430, and the pressure sensor 430 is disposed between the driving cylinder 410 and the slider mounting plate 220. Through the arrangement of the pressure sensor 430, the driving cylinder 410 is ensured to output a constant and accurate pressure requirement every time during the welding process.

With continued reference to fig. 1, 2, and 3, in one embodiment, the welding assembly 300 further includes a female rod 350, the female rod 350 is disposed perpendicular to the guide rail 210, one end of the female rod 350 is vertically connected to the middle of the welding member 321, and the other end of the female rod 350 is connected to the horn 330. Through the arrangement of the female rod 350, the welding part 321 and the amplitude transformer 330 can be conveniently installed and disassembled, and a T-shaped structure is formed between the welding part 321 and the amplitude transformer 330, so that the transverse vibration transmitted to the female rod 350 after being amplified by the amplitude transformer 330 can be converted into bending vibration with small amplitude and soft vibration by the welding part 321, the occurrence of shatter of thin materials during welding can be effectively reduced, and the welding quality of the ultrasonic welding machine is further improved. In addition, the female rod 350 is provided with a first auxiliary mounting surface 351, the amplitude transformer 330 is provided with a second auxiliary mounting surface 331, the transducer 340 is provided with an auxiliary mounting hole 341, the first auxiliary mounting surface 351 and the second auxiliary mounting surface 331 are arranged in a flat position type for installing a wrench for dismounting, and the auxiliary mounting hole 341 is used for installing a hook head wrench for dismounting. In order to facilitate the overall installation and disassembly of the tool head 320, a first auxiliary installation surface 351 is arranged on the female rod 350, a second auxiliary installation surface 331 is arranged on the amplitude transformer 330, the number of the first auxiliary installation surface 351 and the second auxiliary installation surface 331 can be 2 or 4, the first auxiliary installation surface 351 and the second auxiliary installation surface 331 are arranged in a flat mode, and the first auxiliary installation surface 351 and the second auxiliary installation surface 331 are parallel to each other and are used for the disassembly and assembly of a wrench. When the female rod 350 needs to be screwed or unscrewed, a wrench is only required to be clamped into the female rod 350 along the first auxiliary mounting surface 351, and the female rod 350 can be screwed or unscrewed through the wrench, so that the female rod 350 can be mounted and dismounted. When the amplitude transformer 330 needs to be screwed or unscrewed, a wrench is only required to be clamped into the amplitude transformer 330 along the second auxiliary mounting surface 331, and the amplitude transformer 330 can be screwed or unscrewed through the wrench, so that the installation and the disassembly of the amplitude transformer 330 are realized. In addition, be equipped with supplementary mounting hole 341 on the transducer 340, the quantity of supplementary mounting hole 341 is provided with 2 or 4, when needing to screw or unscrew transducer 340, only needs to collude the eave tile spanner in supplementary mounting hole 341, can carry out dismouting operation to transducer 340 through the spanner afterwards.

With continued reference to fig. 3, in an embodiment, the pressing element 322 is detachably connected to the welding element 321, and the welding element 321 is detachably connected to the female rod 350. Thus, the tool head 320 is assembled, and the welding part 321 is a main consumable, when one end of the welding part 321 used for welding cannot be repaired due to work abrasion, only the welding part 321 needs to be replaced, the whole tool head 320 does not need to be replaced, the availability of the tool head 320 is greatly improved, and the use cost is saved. Of course, in another embodiment, the pressing member 322, the welding member 321 and the female rod 350 are integrally formed, which is also beneficial to improving the use strength of the tool head 320, and the user can set the tool head according to actual needs.

Referring to fig. 3, in an embodiment, the pressing element 322 is connected to the welding element 321 by a screw, the welding element 321 is connected to the female rod 350 by a screw, the pressing element 322 includes a screw 3221, a fixing portion 3222 and a clamping portion 3223, the fixing portion 3222 is fixedly connected to the clamping portion 3223, the clamping portion 3223 is provided with a locking hole 322a and a clamping groove 322b, the welding element 321 includes a connecting portion 3211, the connecting portion 3211 is installed in the clamping groove 322b, and the clamping groove 322b is cooperatively connected to the locking hole 322a by the screw 3221 to clamp and adjust the connecting portion 3211. Further, the clamping portion 3223 includes a first clamping block 322c and a second clamping block 322d, the first clamping block 322c and the second clamping block 322d are disposed on the fixing portion 3222 at an interval, a clamping groove 322b is formed between the first clamping block 322c and the second clamping block 322d, and the locking hole 322a penetrates through the first clamping block 322c and the second clamping block 322 d. During installation, an operator only needs to insert the screw 3221 into the locking hole 322a, rotate the screw 3221, and adjust the distance between the first clamping block 322c and the second clamping block 322d, so as to adjust the size of the clamping groove 322b, thereby achieving clamping and installation of the connecting portion 3211. So set up, not only make things convenient for the installation and the dismantlement of pressing piece 322 and welding piece 321, can also simplify processing structure, reduced the processing cost, be favorable to the production of product.

Referring to fig. 3, in an embodiment, one end of the fixing portion 3222, which is away from the welding member 321, is provided with a plurality of internal threaded holes 322e, the circumferential side of the fixing portion 3222 is provided with a locking groove 322f, and the sliding mounting plate 220 may be provided with a limiting block, which is in interference fit with the locking groove 322f to prevent the pressing member 322 from moving; ensure the normal output of the pressure and the normal use of the pressing piece 322.

With reference to fig. 1 and fig. 2, in an embodiment, the support frame 120 includes a first fixing plate 121, a second fixing plate 122, a third fixing plate 123 and an auxiliary plate 124, the first fixing plate 121 and the second fixing plate 122 are disposed on the bottom plate 110 at intervals, the guide rail 210 is fixedly disposed on the first fixing plate 121, the first fixing plate 121 is formed with a first through hole 1211, the extension block 230 and the horn 330 are disposed in the first through hole 1211, one end of the auxiliary plate 124 is fixedly connected to one end of the extension block 230 away from the slider mounting plate 220, the other end of the auxiliary plate is fixedly connected to the horn 330, the second fixing plate 122 is formed with a second through hole 1221, the transducer 340 is disposed in the second through hole 1221, the third fixing plate 123 is disposed on one side of the first fixing plate 121 and the second fixing plate 122 away from the bottom plate 110, and the driving cylinder 410 is mounted on the third fixing plate 123.

With continued reference to FIG. 2, in one embodiment, the welding station 310 includes a base mold 311 and an adjustment plate 312, the adjustment plate 312 is detachably mounted on the base plate 110, and the base mold 311 is fixedly mounted on the adjustment plate 312. The bottom die part 311 is used for supporting and fixing a workpiece to be processed, and the bottom die part 311 can be designed in an integrated wedge rod type, so that energy absorption is uniform during welding, stability of a welding process is guaranteed, and a welding effect is more ideal.

All possible combinations of the above-described features are described, but the scope of the description should be considered as being included as long as there is no contradiction between the combinations of the features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application.

Claims

1. An ultrasonic welding machine, comprising:

the guide assembly comprises a guide rail, a sliding block mounting plate and an extension block, the guide rail is fixedly arranged on the supporting frame, the sliding block mounting plate is connected to the guide rail in a sliding mode, and the extension block is fixed on the sliding block mounting plate;

2. An ultrasonic welding machine according to claim 1 wherein the tool head comprises a weldment and a pressing member, the pressing member being secured to the slide mounting plate, one end of the pressing member being connected to the weldment, the weldment being located adjacent the welding station.

3. An ultrasonic welding machine according to claim 2 wherein the drive assembly further comprises a pressure sensor connected to the drive cylinder.

4. An ultrasonic welding machine according to claim 2 wherein the welding assembly further comprises a female rod disposed perpendicular to the rail, one end of the female rod being attached perpendicularly to the middle of the weld element and the other end of the female rod being attached to the horn.

5. The ultrasonic welding machine of claim 4, wherein the pressing element is removably coupled to the welding element, and the welding element is removably coupled to the female rod.

6. The ultrasonic welding machine according to claim 5, wherein the pressing member is in screw connection with the welding member, the welding member is in screw connection with the female rod, the pressing member comprises a screw, a fixing portion and a clamping portion, the fixing portion is fixedly connected with the clamping portion, the clamping portion is provided with a locking hole and a clamping groove, the welding member comprises a connecting portion, the connecting portion is mounted in the clamping groove, and the clamping groove is in fit connection with the locking hole through the screw to clamp and adjust the connecting portion.

7. An ultrasonic welding machine according to claim 6 wherein the clamping portion comprises a first clamping block and a second clamping block, the first clamping block and the second clamping block are arranged on the fixing portion at intervals, the clamping groove is formed by the distance between the first clamping block and the second clamping block, and the locking hole is arranged on the first clamping block and the second clamping block in a penetrating manner.

8. The ultrasonic welding machine of claim 7, wherein a plurality of internal threaded holes are provided at an end of the fixing portion away from the welding member, and a slot for receiving a fastener is provided on an outer surface of the fixing portion.

9. An ultrasonic welding machine according to claim 1 wherein the support frame comprises a first fixed plate, a second fixed plate, a third fixed plate and an auxiliary plate, the first fixing plate and the second fixing plate are arranged on the bottom plate at intervals, the guide rail is fixedly arranged on the first fixing plate, the first fixing plate is provided with a first through hole, the extension block and the amplitude transformer penetrate through the first through hole, one end of the auxiliary plate is fixedly connected with one end of the extension block, the other end of the auxiliary plate is fixedly connected with the amplitude transformer, a second through hole is arranged on the second fixing plate, the transducer is arranged in the second through hole in a penetrating way, the third fixing plate is arranged on one side, far away from the bottom plate, of the first fixing plate and the second fixing plate, and the driving air cylinder is installed on the third fixing plate.

10. The ultrasonic welding machine of any one of claims 1 to 9, wherein the welding station comprises a base module and an adjustment plate, the adjustment plate being removably mounted to the base plate, the base module being fixedly mounted to the adjustment plate.