CN114260555B - Die welding device for ultrasonic welding with multiple stations - Google Patents

Abstract

The present invention provides a die-bonding apparatus for ultrasonic bonding having a plurality of stations, which is provided on a supporting device of an ultrasonic bonding apparatus for fixing a work and bonding a plurality of bonding points of the work, and has such a feature that it comprises: the die set part is provided with an upper die set and a lower die set which are arranged on the supporting device; the welding part is arranged on the upper die frame and comprises a welding unit; a mold part having a positioning mold; and the moving part is arranged on the lower die frame and used for enabling the die part to move in the horizontal direction, wherein a plurality of welding spots are divided into n welding spot groups according to the positions on the workpiece, n is more than or equal to 2, the number of welding units is n, the n welding units correspond to n welding stations and are distributed in a straight line side by side, the distribution direction is consistent with the moving direction of the positioning die, the n welding units are arranged in one-to-one correspondence with the n welding spot groups, and the welding units are used for welding all welding spots of the corresponding welding spot groups when the workpiece moves to the corresponding welding stations.

Description

Die welding device for ultrasonic welding with multiple stations

Technical Field

The invention belongs to the field of machinery, and particularly relates to a die welding device for ultrasonic welding with multiple stations.

Background

In the prior art, workpieces such as glove boxes and instrument panels of automobiles, which all have a plurality of welding points (welding points) to be welded, fig. 15 shows a schematic structural diagram of an automobile instrument panel, it is obvious from the diagram that the welding points 2 of the instrument panel 1 of the automobile are more (26 welding points 2 in the diagram), the position changes of different welding points 2 along with the height fluctuation of the instrument panel in the vertical direction and the horizontal direction are more complex, and some welding points are closely spaced from each other and even partially overlap, which brings great challenges to the welding processing of the automobile instrument panel.

In this regard, in the prior art, a worker generally holds a welding gun to weld each welding spot of an automobile instrument panel one by one, however, the manual welding mode is long in time consumption, high in cost of manpower and material resources, and the welding quality depends on experience of the worker, so that consistency of welding quality cannot be ensured.

In addition, the prior art also has an automatic welding mode, which is realized by combining a multi-axis robot and a welding gun, and the multi-axis robot drives the welding gun to move so as to sequentially weld all welding spots of the automobile instrument board. Although this method can solve the problem of consistency of welding quality, since the number of welding spots 2 of the automobile instrument panel 1 is relatively large, the position change is complex, the accurate recognition of the welding spot position is complex, the time is consumed, and the stroke of the multi-axis robot is large, the time consumed for the whole welding process is still long.

Disclosure of Invention

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a die bonding apparatus for ultrasonic bonding having multiple stations.

The present invention provides a die-bonding apparatus for ultrasonic bonding having a plurality of stations, which is provided on a supporting device of an ultrasonic bonding apparatus for fixing a work and bonding a plurality of bonding points of the work, and has such a feature that it comprises: the die set part is provided with an upper die set and a lower die set which are arranged on the supporting device, and the upper die set is positioned above the lower die set; the welding part is arranged on the upper die frame and comprises a welding unit for welding spots; the die part is provided with a positioning die matched with the workpiece and used for positioning the workpiece; and the moving part is arranged on the lower die frame and used for enabling the die part to move in the horizontal direction, wherein a plurality of welding spots are divided into n welding spot groups according to the positions on the workpiece, n is more than or equal to 2, the number of welding units is n, the n welding units correspond to n welding stations and are distributed in a straight line side by side, the distribution direction is consistent with the moving direction of the positioning die, the n welding units are arranged in one-to-one correspondence with the n welding spot groups, and the welding units are used for welding all welding spots of the corresponding welding spot groups when the workpiece moves to the corresponding welding stations.

The die-bonding apparatus for ultrasonic bonding having multiple stations according to the present invention may further have the following features: the moving part comprises a moving guide rail, a moving piece and a moving driving piece for driving the moving piece to move along the moving guide rail, and the die part is arranged on the moving piece.

The die-bonding apparatus for ultrasonic bonding having multiple stations according to the present invention may further have the following features: the moving part further comprises a limiting guide rail, the limiting guide rail is arranged in parallel with the moving guide rail, and the moving part is sleeved on the moving guide rail and the limiting guide rail.

The die-bonding apparatus for ultrasonic bonding having multiple stations according to the present invention may further have the following features: the movable guide rail is a screw rod, the movable member and the movable guide rail form a screw rod nut pair, and the movable driving member is a driving motor.

The die-bonding apparatus for ultrasonic bonding having multiple stations according to the present invention may further have the following features: the welding units are provided with welding subunits which are in one-to-one correspondence with welding spots in the corresponding welding spot groups, and the welding subunits are used for welding the corresponding welding spots.

The die-bonding apparatus for ultrasonic bonding having multiple stations according to the present invention may further have the following features: the welding subunit comprises a welding assembly and a lifting assembly for welding, wherein the welding assembly is used for welding spots, and the lifting assembly for welding is arranged on the upper die frame and used for lifting the welding assembly.

The die-bonding apparatus for ultrasonic bonding having multiple stations according to the present invention may further have the following features: the welding subunit further comprises a welding fixing piece and a lifting buffer piece, the welding lifting assembly is connected to the welding fixing piece through the lifting buffer piece, the welding fixing piece is detachably connected to the upper die frame, and the welding assembly comprises a welding head and an ultrasonic transducer connected with the welding head.

The die-bonding apparatus for ultrasonic bonding having multiple stations according to the present invention may further have the following features: wherein, upper die carrier and lower die carrier all detachably set up on strutting arrangement.

The die bonding apparatus for ultrasonic bonding having a plurality of stations according to the present invention may further include: and the workpiece pressing part is arranged on the lower die frame and used for pressing the workpiece on the positioning die tire.

The die-bonding apparatus for ultrasonic bonding having multiple stations according to the present invention may further have the following features: wherein the workpiece is a glove box or an instrument panel of an automobile.

Effects and effects of the invention

According to the die welding device for ultrasonic welding with multiple stations, which is related by the invention, because the die welding device comprises the die frame part, the welding part and the die part, the die frame part comprises the upper die frame and the lower die frame, the die part is arranged on the lower die frame and is provided with the positioning die matched with a workpiece, the welding part is arranged on the upper die frame and comprises n welding units, the n welding units are arranged in one-to-one correspondence with n welding spot groups on the workpiece, and one welding unit can weld all welding spots in the corresponding welding spot groups at the same time, so that the whole workpiece can finish welding processing only by sequentially welding the n welding units, and the welding processing time is greatly shortened.

In addition, because this mould welding set for ultrasonic welding with multistation still includes the movable part, and the movable part can make mould portion remove in the horizontal direction, and n welding units correspond n welding stations and become a sharp distribution side by side, and this distribution direction is unanimous with the direction of movement of location die, consequently can shift the work piece between each welding station fast through the movable part to when the work piece moves to corresponding welding station, the welding unit of this welding station welds all the solder joints of corresponding solder joint group simultaneously, and then realizes the welding in proper order of each solder joint group fast.

Drawings

FIG. 1 is a schematic perspective view of an ultrasonic welding apparatus in accordance with an embodiment of the present invention;

FIG. 2 is a schematic perspective view showing the structure of an ultrasonic welding apparatus with a protective door and a die-bonding device removed in accordance with an embodiment of the present invention;

FIG. 3 is a schematic perspective view of the structure of the ultrasonic welding apparatus according to the embodiment of the present invention with the protective case, the power supply device, the control device and the die-bonding device removed;

FIG. 4 is a block diagram of an ultrasonic welding apparatus in an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a structure of an ultrasonic welding apparatus according to an embodiment of the present invention with a protective case, a power supply device, a control device, and a die-bonding device removed;

FIG. 6 is a schematic perspective view of a horizontal movement device according to an embodiment of the present invention;

FIG. 7 is a schematic view of the first movable member of the horizontal moving device in FIG. 6 in a transparent state according to an embodiment of the present invention;

FIG. 8 is a schematic perspective view of a die bonding apparatus in accordance with an embodiment of the present invention;

FIG. 9 is a side view of a die bonding apparatus in an embodiment of the invention;

fig. 10 is a schematic structural view of a lower mold frame and a third moving part in the embodiment of the present invention;

FIG. 11 is a schematic diagram illustrating a state that a clamping unit is clamped on a clamping post according to an embodiment of the present invention;

FIG. 12 is a schematic perspective view of a welding subunit in accordance with an embodiment of the invention;

FIG. 13 is a schematic flow diagram of a die bonding apparatus mounted on a support apparatus in an embodiment of the invention;

FIG. 14 is a schematic flow chart of ultrasonic welding of an instrument panel of an automobile by an ultrasonic welding apparatus in an embodiment of the invention; and

fig. 15 is a schematic structural view of an instrument panel of an automobile in the embodiment of the invention.

Detailed Description

In order to make the technical means, creation characteristics, achievement purposes and effects achieved by the present invention easy to understand, the following embodiments specifically describe the die welding device for ultrasonic welding with multiple stations according to the present invention with reference to the accompanying drawings.

< example >

FIG. 1 is a schematic perspective view of an ultrasonic welding apparatus in accordance with an embodiment of the present invention; FIG. 2 is a schematic perspective view showing the structure of an ultrasonic welding apparatus with a protective door and a die-bonding device removed in accordance with an embodiment of the present invention; fig. 3 is a schematic perspective view showing a structure of an ultrasonic welding apparatus according to an embodiment of the present invention with a protective case, a power supply device, a control device, and a die welding device removed; fig. 4 is a block diagram showing the structure of an ultrasonic welding apparatus in the embodiment of the present invention.

As shown in fig. 1 to 4, the present embodiment provides an ultrasonic welding apparatus 100 for performing welding processing on a workpiece, in particular, an instrument panel of an automobile in the present embodiment, and the instrument panel 1 has a structure as shown in fig. 15. The ultrasonic welding apparatus 100 includes a supporting device 10, a die-bonding device 20, a horizontal moving device 30, a vertical moving device 40, a positioning device 50, a rolling device 60, a power supply device 70, and a control device 80.

The power supply device 70 and the control device 80 are integrated in an electric control cabinet, the power supply device 70 is used for supplying power to the whole equipment, and the control device 80 is used for controlling the operation of the die welding device 20, the horizontal moving device 30, the vertical moving device 40, the positioning device 50 and the rolling device 60.

The support device 10 includes a support portion 11 and a protective case 12 provided outside the support portion 11. The protective case 12 is used to protect the front, rear, left, right, and upper sides of the support 11. The protective case 12 has an openable protective door 121 provided at the front. In this embodiment, the direction in which the protection door 121 is located is referred to as the "front" of the entire apparatus, the direction of the protection case 12 with respect to the protection door 121 is referred to as the "rear" of the entire apparatus, and the position in which the control device 80 is located is referred to as the "right" of the entire apparatus, so that the spatial orientation of the entire apparatus is defined.

As shown in fig. 3, the supporting portion 11 includes a lower supporting frame 111, an upper supporting frame 112, a lifting guide post 113, and a limiting plate 114. The upper support 112 is provided on the lower support 111. The lifting guide posts 113 are arranged between the upper support frame 112 and the lower support frame 111, the number of the lifting guide posts 113 is 4, and the 4 lifting guide posts 113 are arranged in a rectangular shape. The limiting plates 114 are arranged in two and are respectively connected to the two lifting guide posts 113. The stopper plate 114 extends in a first horizontal direction (direction indicated by arrow X in fig. 3), which is the front-rear direction of the apparatus.

FIG. 5 is a schematic perspective view of a structure of an ultrasonic welding apparatus according to an embodiment of the present invention with a protective case, a power supply device, a control device, and a die-bonding device removed; FIG. 6 is a schematic perspective view of a horizontal movement device according to an embodiment of the present invention; fig. 7 is a schematic view illustrating a case where the first moving member of the horizontal moving device in fig. 6 is set to a transparent state in an embodiment of the present invention.

As shown in fig. 5 to 7, the horizontal moving device 30 includes a first moving portion 31. The first moving part 31 includes a first moving rail 311, a first moving member 312, a slider 313, and a first moving driver 314.

The first moving rail 311 is fixedly provided on the lower support frame 111 and extends in a first horizontal direction. The first moving rails 311 are provided in two, and the two first moving rails 311 are provided in parallel. In this embodiment, the first moving rail 311 is a sliding rail.

The first moving member 312 is a rectangular moving plate, and the first moving member 312 is slidably disposed on two first moving rails 311 by a slider 311 disposed on a lower surface. The number of the sliding blocks 311 is 4, wherein every two sliding blocks 311 are in a group, the sliding blocks 311 are arranged on one first movable guide rail 311, and a certain distance is reserved between the two sliding blocks 311 in the same group, so that the installation stability is improved.

The first moving driving member 314 is configured to drive the first moving member 312 to reciprocate along the length direction (the first horizontal direction) of the first moving rail 311. The first moving driver 314 is a cylinder.

The vertical moving device 40 includes a second moving part 41, and the second moving part 41 includes a second moving rail 411, a second moving member 412, and a second moving driving member 413.

The second moving rail 411 is provided on the upper support frame 112, and is disposed in the vertical direction. The second moving rails 411 are provided in two in this embodiment and are disposed parallel to each other. The second moving rail 411 is a rack.

The second moving member 412 is a rectangular plate and is movably disposed on the two second moving rails 411. The second moving member 412 forms a rack and pinion pair with the second moving rail 411. In addition, the second moving member 412 is movably sleeved on the four lifting guide posts 113, so that the four lifting guide posts 113 limit the position in the horizontal direction, and the two limiting plates 114 limit the lowest position of the vertical movement.

The second moving driving member 413 is configured to drive the second moving member 412 to lift (move) along the second moving rail 411 and the lifting guide post 113. The second moving driving member 413 is a servo motor provided on the upper support frame 112.

FIG. 8 is a schematic perspective view of a die bonding apparatus in accordance with an embodiment of the present invention; FIG. 9 is a side view of a die bonding apparatus in an embodiment of the invention; fig. 10 is a schematic structural view of the lower mold frame and the third moving part in the embodiment of the present invention.

As shown in fig. 4 and 8 to 10, the die bonding apparatus 20 is a die bonding apparatus for ultrasonic bonding having a plurality of stations, and is configured to ultrasonically bond a plurality of pads 2 of the instrument panel 1, and includes a die frame portion 21, a bonding portion 22, a die portion 23, a third moving portion 24, and a workpiece pressing portion 25.

The die carrier portion 21 is used for mounting the welding portion 22, the die portion 23, the third moving portion 24, and the workpiece pressing portion 25. The mold frame part 21 includes an upper mold frame 211 and a lower mold frame 212.

The lower mold frame 212 is detachably disposed on the lower support frame 111 through the horizontal moving device 30, and is driven by the horizontal moving device 30 to move horizontally.

As shown in fig. 10, the lower mold frame 212 includes a lower fixing plate 2121, a lower upright 2122, and a limiting groove 2123.

The lower fixing plate 2121 is a rectangular flat plate that is placed on the first moving member 312. The side (rear side) of the lower fixing plate 2121 remote from the protection door 121 has two lateral grooves 21211 open to the outside. Four lower posts 2122 are provided at four corners of the upper surface of the lower fixing plate 2121, respectively, for supporting the upper mold frame 211. Four limit grooves 2123 are all provided on the upper surface of the lower fixing plate 2121, and are divided into two groups, each group including two limit grooves 2123. Two sets of limiting grooves 2123 are respectively arranged at the left edge and the right edge of the lower fixed plate 2121.

As shown in fig. 7, the positioning device 50 has a lower positioning portion 52 for positioning the lower mold frame 212 so that the lower mold frame 212 is detachably mounted on the lower support frame 111. The lower positioning part 52 is disposed on the first moving member 312, and includes a lower mold frame pressing unit 521 and a lower mold frame blocking unit 522.

The lower die frame compressing unit 521 is used for detachably fixing the lower die frame 212 on the first moving member 312, and includes a flipping compressing member 5211 and a flipping cylinder 5212. The flip hold-down member 5211 has a hold-down end that mates with the limit groove 2123. The overturning cylinder 5212 is used for driving the overturning compressing piece 5211 to overturn, so that the compressing end is compressed on the limiting groove 2123, and the lower fixing plate 2121 is fixed on the first moving piece 312 in a compressing mode. The lower die frame compressing units 521 are arranged in four and are arranged in one-to-one correspondence with the four limit grooves 2123.

The lower mold frame blocking unit 522 includes a blocking piece 5221, a blocking cylinder 5222, and a blocking post 5223.

The blocking member 5221 is provided on the upper surface of the first moving member 312 in a rearward position, in conformity with the shape and size of the lateral recess 21211. The blocking members 5221 are arranged in two and are respectively arranged in one-to-one correspondence with the two lateral grooves 21211, and are used for abutting against the lateral grooves 21211 so as to block and limit the rear side of the lower fixing plate 2121.

The first moving member 312 is further provided with a mounting hole. The blocking cylinder 5222 is provided on the lower surface of the first moving member 312, and a blocking post 5223 is connected to the output end of the blocking cylinder 5222, and the blocking post 5223 is penetrated through the mounting hole of the first moving member 312. The blocking cylinder 5222 is used for driving the blocking column 5223 to lift, and when the blocking column 5223 lifts, the blocking column 5223 is used for blocking and limiting the front side of the lower fixed plate 2121; when the blocking post 5223 is lowered, the top of the blocking post 5223 is lower than the upper surface of the first moving member 312 so that the lower fixing plate 2121 can be smoothly pushed on the upper surface of the first moving member 312.

The upper mold frame 211 is detachably arranged on the upper support frame 112 through the vertical moving device 40, and is driven by the vertical moving device 40 to lift.

As shown in fig. 8 and 9, the upper mold frame 211 includes an upper fixing plate 2111, an upper column 2112, and a clamping column 2113.

The upper fixing plate 2111 is a rectangular flat plate for mounting on the second moving member 412. Four upper posts 2112 are provided at four corners of the lower surface of the upper plate 2111, respectively, and are inserted together in a one-to-one correspondence with the four lower posts 2122. Specifically, the lower upright 2122 has a clamp mounting groove 21221 at the top, and the upper upright 2112 has a clamp connector 21121 at the bottom, and the clamp mounting groove 21221 is adapted to the clamp connector 21121, and the connector 21121 is insertable into the clamp mounting groove 21221 to detachably mount the upper mold frame 211 to the lower mold frame 212. Six clamping posts 2113 are provided on the upper surface of the upper fixing plate 2111, wherein four clamping posts 2113 are provided at four corner positions of the upper fixing plate 2111, respectively, and the remaining two are provided at a middle front position and a middle rear position of the upper fixing plate 2111, respectively. The clamping post 2113 has two notches 21131 disposed opposite one another

As shown in fig. 5, the positioning device 50 further has an upper positioning portion 51 for positioning the upper mold frame 211 such that the upper mold frame 211 is detachably connected to the upper support frame 112. The upper positioning portion 51 has six clamping units 511. The clamping units 511 are fixedly arranged on the upper supporting frame 112, and six clamping units 511 are arranged in one-to-one correspondence with six clamping columns 2113.

Fig. 11 is a schematic diagram illustrating a state that the clamping unit is clamped on the clamping post according to an embodiment of the invention.

As shown in fig. 11, the catching unit 511 has a catching seat 5111 and an upper driving member 5112. The clamping seat 5111 is matched with the clamping column 2113, the upper driving member 5112 is used for driving the clamping seat 5111 to push forwards or backwards, and when the upper driving member 5112 drives the clamping seat 5111 to push forwards, the clamping seat 5111 is clamped on the notch 21131 of the corresponding clamping column 2113; when the upper driving member 5112 drives the cartridge 5111 to retreat, the cartridge 5111 is disengaged from the engaging post 2113.

As shown in fig. 8 and 9, the welding portion 22 is provided on the upper fixing plate 2111 and has a welding unit 221 for welding the welding spot 2. As shown in fig. 15, 26 welding spots 2 of the instrument panel 1 are divided into 3 welding spot groups according to positions on the instrument panel 1, and are respectively denoted as a first welding spot group containing 12 welding spots 2a, a second welding spot group containing 7 welding spots 2b, and a third welding spot group containing 7 welding spots 2c.

The number of the welding units 221 is the same as the number of the pad groups. The three welding units 221 are arranged side by side in a straight line corresponding to the three welding stations, and the arrangement direction is identical to the first horizontal direction (the direction indicated by the arrow X in fig. 9). The three welding units 221 are arranged in a one-to-one correspondence with the three welding spot groups, and the welding units 221 are used for welding all welding spots 2 of the corresponding welding spot groups. The welding unit 221 has a plurality of welding subunits 222 arranged in one-to-one correspondence with the plurality of welding spots 221 in the corresponding welding spot group.

Fig. 12 is a schematic perspective view of a welding subunit in accordance with an embodiment of the invention.

As shown in fig. 12, the welding subunit 222 is configured to weld corresponding welding spots, and includes a welding fixture 2221, a lifting buffer 2222, a welding assembly 2223, and a welding lifting assembly 2224.

The welding fixture 2221 is detachably attached to the lower surface of the upper fixing plate 2111 by screwing. The welding lifting unit 2224 is connected to the welding fixture 2221 via a lifting buffer 2222, and is configured to lift and lower the driving welding unit 2224. The welding lifter assembly 2224 includes a welding cylinder 22241 and a welding connector 22242 connected to an output shaft of the welding cylinder 22241. The welding assembly 2224 includes a horn 22231 and an ultrasonic transducer 22232. The horn 22231 is attached to an ultrasonic transducer 22232, and the ultrasonic transducer 22232 is mounted on a welding connection 22242. Bonding tool 22231 is adapted to a corresponding bonding site 2 for ultrasonic bonding of bonding site 2. The upper support 112 is also provided with an ultrasonic generator 1121, and the ultrasonic transducer 22232 and the ultrasonic generator 1121 are plugged together by a cable. The frequency of the ultrasonic transducer 22232 is 35kZ.

The three welding units 221 are sequentially designated as a first welding unit 221a, a second welding unit 221b, and a second welding unit 221b from front to back, and the corresponding three welding stations are designated as a first welding station, a second welding station, and a third welding station, respectively.

As shown in fig. 9 and 10, the third moving portion 24 is provided on the lower fixed plate 2121, and includes a third moving rail 241, a third limit rail 242, a third moving member 243, and a third moving driving member 244.

The third moving rail 241 is a screw, and extends in the first horizontal direction (the direction indicated by the arrow in fig. 9). The number of the third limiting rails 242 is two, and the two third limiting rails 242 are respectively arranged at two sides of the third moving rail 241 and are parallel to the third moving rail 241. The third moving member 243 is a rectangular plate, and the third moving member 243 is movably disposed on the third moving rail 241 and the two third limiting rails 242. The third moving member 243 forms a lead screw nut pair with the third moving rail 241.

The third moving driving member 244 is a driving motor provided on the lower fixed plate 2121 for driving the third moving rail 241 to rotate, and thus the moving member 243 moves in the first horizontal direction (front-rear direction).

The mold portion 23 is provided on the upper surface of the third moving member 243, and has a positioning mold 231 adapted to the shape and size of the instrument panel 1. The number of positioning dies 231 is one.

The workpiece pressing portion 25 is provided on the upper surface of the third moving member 243 beside the positioning die 231 for pressing the instrument panel 1 against the positioning die 231. The workpiece pressing portion is, for example, a cylinder-driven pressing block structure, which is a prior art and will not be described in detail herein.

After the workpiece pressing portion 25 presses the instrument panel 1 against the positioning die 231, at which time the instrument panel is located at the first welding station, the first welding unit 221a simultaneously performs ultrasonic welding on all the welding spots 2a of the first welding spot group of the instrument panel 1; when the instrument panel 1 moves to the second welding station along the first horizontal direction together with the third moving member, the second welding unit 221b simultaneously performs ultrasonic welding on all the welding spots 2b of the second welding spot group of the instrument panel 1; when the instrument panel 1 is moved to the third welding station in the first horizontal direction together with the third moving member, the third welding unit 221c simultaneously performs ultrasonic welding on all the welding spots 2c of the third welding spot group of the instrument panel 1.

The die bonding apparatus 20 in the present embodiment is transported to the vicinity of the protective door 121 by a transportation cart and then pushed onto the upper surface of the first moving member 312 by pushing. Based on this, the rolling device 60 is further provided on the first moving member 312.

As shown in fig. 6 and 7, the rolling device 60 includes two rolling portions 61 arranged side by side. The rolling portion 61 includes a plurality of through holes 611 provided on the first moving member 312, and a rolling unit 612.

The plurality of through holes 611 are aligned in a straight line along the first horizontal direction and uniformly distributed.

The rolling unit 612 includes a drive assembly 6122, a plurality of bullseye bearings 6121, and a bearing mounting plate 6123. The plurality of bullseye bearings 6121 are disposed in one-to-one correspondence with the plurality of through holes 611 and mounted on the bearing mounting plate 6123. The driving assembly 6122 is provided at the first moving member 312 and serves to drive the bearing mounting plate 6123 to move upward such that the bullseye bearing 6121 is inserted on the corresponding through hole 611 and exposed from the upper surface of the first moving member 312. The drive assembly 6122 includes two cylinders disposed on the first mover 312.

When the bullseye bearing 6121 is lifted and the die bonding apparatus 20 is pushed onto the first moving member 312, rolling friction is formed between the bullseye bearing 6121 and the lower fixed plate 2121, so that the lower fixed plate 2121 can be very smoothly moved on the first moving member 312.

The die bonding apparatus 20 further has an interface (not shown) for electrical connection with the power supply 70.

Fig. 13 is a schematic flow chart of the die bonding apparatus mounted on the supporting apparatus in the embodiment of the present invention.

As shown in fig. 13, the die bonding apparatus 20 in the present application is mounted to the supporting apparatus 10 as follows:

in step S1-1, the die bonding apparatus 20 is transported to the vicinity of the protective door 121 by a transportation cart. The height of the trolley is equal to the height of the first moving member 312 so as to transfer the die bonding device 20 to the first moving member 312 in a horizontal pushing manner.

In step S1-2, the control device 80 controls the first moving member 314 to move the first moving member 312 to the receiving position close to the protection door 121 along the first horizontal direction.

In step S1-3, the control device 80 controls the driving assembly 6122 of the rolling unit 612 to drive the bullseye bearing 6121 to lift, and the bullseye bearing 6121 is exposed from the upper surface of the first moving member 312.

In step S1-4, the die bonding apparatus 20 is pushed in the first horizontal direction and from front to back, manually or by other means, until the die bonding apparatus 20 is blocked by the blocking member 5221. The lower fixed plate 2121 of the die bonding apparatus 20 is in contact with the bullseye bearing 6121 during the pushing, and rolling friction is formed therebetween, and the lower fixed plate 2121 is not in contact with the first moving member 312.

In step S1-5, the control device 80 controls the blocking cylinder 5222 to drive the blocking post 5223 to lift, and the blocking post 5223 blocks and limits the front side of the die bonding device 20.

In step S1-6, the control device 80 controls the driving assembly 6122 of the rolling unit 612 to drive the bullseye bearing 6121 to descend, and the die bonding device 20 falls onto the first moving member 312.

In step S1-7, the control device 80 controls the flipping cylinder 5212 to drive the flipping pressing member 5211 to flip so as to press the lower fixing plate 2121 of the die bonding apparatus 20 against the first moving member 312.

In steps 1-8, the control device 80 controls the first moving member 314 to move the first moving member 312 from the receiving position close to the protective door 121 to the safe welding position away from the protective door 121.

In step S1-9, the control device 80 controls the second moving driving member 413 to drive the second moving member 412 to move downward to the mounting position, and at this time, the clamping seat 5111 on the second moving driving member 413 is aligned with the notch 21131 of the clamping post 2113 of the upper mold frame 211.

In step S1-10, the control device 80 controls the upper driving member 5112 to drive the cartridge 5111 to move forward, so as to be clamped on the notch 21131 of the clamping column 2113.

In step S1-11, the control device 80 controls the second moving driving member 413 to drive the second moving member 412 to rise to the work-piece releasing position, at which time the upper die frame 211 has been separated from the lower die frame 212 and the bottom of the welding portion 22 is higher than the positioning die 231 by a predetermined height, the size of which is dependent on the size of the instrument panel 1, thereby facilitating the placement of the instrument panel 1 onto the positioning die 231.

The above is the installation process of the die-bonding apparatus 20 on the supporting apparatus 10, and in the whole process, the actions except the actions of transporting the die-bonding apparatus 20 to the vicinity of the protective door 121 and pushing the die-bonding apparatus 20 into the supporting apparatus 10 are automatically completed under the control of the control apparatus 80, so that the time and effort are saved, and the installation is convenient.

In addition, the types or sizes of the workpieces to be welded are different, the die-bonding device 20 needs to be replaced in a set, and the process of removing the die-bonding device 20 during replacement is basically opposite to the above-described mounting process, so that the description thereof will not be repeated.

After the die bonding apparatus 20 is mounted on the supporting apparatus 10, a bonding process may be performed.

Fig. 14 is a schematic flow chart of ultrasonic welding of an instrument panel of an automobile by an ultrasonic welding apparatus in an embodiment of the present invention.

As shown in fig. 14, the ultrasonic welding apparatus 100 ultrasonic welding the instrument panel 1 of the automobile includes the steps of:

in step 2-1, the control device 80 controls the first moving member 314 to move the first moving member 312 from the safe welding position to the receiving position.

Step 2-2, the instrument panel 1 is placed on the positioning die 231.

In step 2-3, the control device 80 controls the work pressing portion 25 to press the instrument panel 1 against the positioning die 231.

In step 2-4, the manufacturing apparatus 80 controls the first moving member 314 to move the first moving member 312 from the receiving position to the safe welding position. The positioning die 231 is now located at the first welding station.

In step S2-5, the control device 80 controls the second moving driving member 413 to drive the second moving member 412 to move down to the installation position, at which time the upper upright 2112 and the lower upright 2122 are abutted.

In step S2-6, the control device 80 controls all the welding cylinders 22241 of the first welding unit 221a to drive the corresponding welding heads 22231 to move down to the corresponding welding spots 2 a.

In step S2-7, the control device 80 controls all the ultrasonic transducers 22232 of the first welding unit 221a to operate so that the corresponding bonding heads 22231 perform ultrasonic welding, thereby performing ultrasonic welding on all the welding spots 2a of the first welding spot group.

In step S2-8, the control device 80 controls all the ultrasonic transducers 22232 of the first welding unit 221a to stop operating.

In step S2-9, the control device 80 controls all the welding cylinders 22241 of the first welding unit 221a to drive the corresponding welding heads 22231 to ascend and retract, and controls the second movement driving member 413 to drive the second moving member 412 to ascend to the work-piece discharging position.

In step S2-10, the control device 80 controls the third moving member 244 to drive the third moving member 243 to move, so that the positioning die 231 moves from the first welding station to the second welding station.

In step S2-11, the control device 80 controls the second moving driving member 413 to drive the second moving member 412 to move down to the installation position.

In step S2-12, the control device 80 controls all the welding cylinders 22241 of the second welding unit 221b to drive the corresponding welding heads 22231 to move down to the corresponding welding spots 2 b.

In step S2-13, the control device 80 controls all the ultrasonic transducers 22232 of the second welding unit 221b to operate so that the corresponding welding heads perform ultrasonic welding, thereby performing ultrasonic welding on all the welding spots 2b of the second welding spot group.

In step S2-14, the control device 80 controls all the ultrasonic transducers 22232 of the second welding unit 221b to stop operating.

In step S2-15, the control device 80 controls all the welding cylinders 22241 of the second welding unit 221b to drive the corresponding welding heads 22231 to ascend and retract, and simultaneously controls the second movement driving member 413 to drive the second moving member 412 to ascend to the work-piece discharging position.

In step S2-16, the control device 80 controls the third moving member 244 to drive the third moving member 243 to move, so that the positioning die 231 moves from the second welding station to the third welding station.

In step S2-17, the control device 80 controls the second moving driving member 413 to drive the second moving member 412 to move down to the installation position.

In step S2-18, the control device 80 controls all the welding cylinders 22241 of the third welding unit 221c to drive the corresponding welding heads 22231 to move down to the corresponding welding spots 2c.

In step S2-19, the control device 80 controls all the ultrasonic transducers 22232 of the third welding unit 221c to operate so that the corresponding welding heads perform ultrasonic welding, thereby performing ultrasonic welding on all the welding spots 2c of the third welding spot group.

In step S2-20, the control device 80 controls all the ultrasonic transducers 22232 of the third welding unit 221c to stop operating.

In step S2-21, the control device 80 controls all the welding cylinders 22241 of the third welding unit 221c to drive the corresponding welding heads 22231 to ascend and retract, and simultaneously controls the second movement driving member 413 to drive the second moving member 412 to ascend to the work-piece discharging position.

In step S2-22, the control device 80 controls the third moving member 244 to drive the third moving member 243 to move, so that the positioning die 231 moves from the third welding station to the first welding station.

In step S2-23, the manufacturing apparatus 80 controls the first moving member 314 to move the first moving member 312 from the safe welding position to the receiving position.

In step S2-24, the control device 80 controls the workpiece pressing portion 25 to reverse.

And step S2-25, taking out the welded instrument panel 1.

The above is a process in which the ultrasonic welding apparatus 100 welds the instrument panel 1 of the automobile, and all the operations other than the operation of taking and placing the instrument panel 1 are automatically completed under the control of the control device 80. When the plurality of instrument panels 1 are mass-welded, the above steps S2-1 to S2-25 are repeated.

Effects and effects of the examples

According to the die welding device for ultrasonic welding with multiple stations, which is related to the embodiment, because the die welding device comprises the die frame part, the welding part and the die part, the die frame part comprises the upper die frame and the lower die frame, the die part is arranged on the lower die frame and is provided with the positioning die matched with the workpiece, the welding part is arranged on the upper die frame and comprises n welding units, the n welding units are arranged in one-to-one correspondence with n welding spot groups on the workpiece, one welding unit can weld all welding spots in the corresponding welding spot groups at the same time, and the whole workpiece can be welded only by welding the n welding units in sequence, so that the welding processing time is greatly shortened. The die welding device for multi-station ultrasonic welding is very suitable for rapid welding of workpieces with the characteristics of particularly many welding spots, relatively complex welding spot distribution, welding spot overlapping and the like of glove boxes or instrument boards of automobiles.

In addition, because the die-bonding apparatus for ultrasonic bonding with multiple stations further includes the third moving portion, the third moving portion can move the die portion in the horizontal direction, n bonding units are distributed in a straight line side by side corresponding to n bonding stations, the distribution direction is consistent with the moving direction of the positioning die, and therefore workpieces can be quickly transferred between the bonding stations by the third moving portion, and when the workpieces move to the corresponding bonding stations, the bonding units of the bonding stations bond all bonding points of the corresponding bonding point groups simultaneously, and further the sequential bonding of the bonding point groups is quickly realized.

Further, since the third moving part includes the third moving guide rail, the third moving member and the third moving driving member, the mold part is disposed on the third moving member, and therefore the third moving member can be driven to move along the third moving guide rail by the third moving driving member, so that the workpiece fixed on the third moving member is rapidly transferred between the three welding stations.

Further, because the third moving part further comprises a third limiting guide rail, the third limiting guide rail is arranged in parallel with the third moving guide rail, and the third moving part is sleeved on the third moving guide rail and the third limiting guide rail, the third moving part is arranged to move more stably.

Further, because the third movable guide rail is the lead screw, the third movable member and the movable guide rail form a lead screw nut pair, and the third movable driving member is a driving motor, the movable position of the third movable driving member can be controlled more accurately, and the third movable member is ensured to be moved to a corresponding welding station accurately.

Further, because the welding units are provided with the welding sub-units which are in one-to-one correspondence with the welding points in the corresponding welding point groups, the welding sub-units can weld the corresponding welding points, so that the fact that one welding unit welds all the welding points in the corresponding welding point groups simultaneously is facilitated.

Further, since the welding subunit further includes a fixing member for welding, and the lifting assembly for welding is detachably connected to the upper die frame by the fixing member for welding, the position of the welding subunit on the upper die frame can be easily adjusted, thereby adapting to the welding processing requirements of different workpieces.

Further, since the welding subunit further includes the lifting buffer member, the lifting assembly for welding is connected to the fixing member for welding through the lifting buffer member, welding of the welding head can be more stable.

Further, because the welding assembly comprises the welding head and the ultrasonic transducer connected with the welding head, the ultrasonic transducer has the frequency of 35KZ, so that the ultrasonic welding can be well carried out on the instrument board of the automobile.

Further, since the upper die carrier and the lower die carrier are detachably arranged on the supporting device of the ultrasonic welding equipment, the whole die welding device for ultrasonic welding can be replaced according to different workpiece models, so that the ultrasonic welding equipment is better in adaptability.

Further, because the die welding device for ultrasonic welding further comprises the workpiece pressing part arranged on the lower die frame, the workpiece can be pressed on the positioning die through the workpiece pressing part, the workpiece is prevented from moving in the welding process, and the accuracy of the welding process is ensured.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims (10)

1. The utility model provides a mould welding set for ultrasonic welding with multistation, sets up on ultrasonic welding equipment's strutting arrangement for fixed work piece and weld a plurality of solder joints to this work piece, ultrasonic welding equipment still has and sets up vertical mobile device and horizontal mobile device on the strutting arrangement, its characterized in that includes:

the die frame part is provided with an upper die frame and a lower die frame which are arranged on the supporting device, and the upper die frame is positioned above the lower die frame;

the welding part is arranged on the upper die frame and comprises a welding unit for welding the welding spots;

a die part, which is provided with a positioning die matched with the workpiece and used for positioning the workpiece; and

a third moving part arranged on the lower die frame and used for moving the die part in the horizontal direction,

wherein the welding spots are divided into n welding spot groups according to the positions on the workpiece, n is more than or equal to 2,

the number of the welding units is n, the n welding units are distributed in a straight line corresponding to the n welding stations side by side, the distribution direction is consistent with the moving direction of the positioning die,

the n welding units are arranged in one-to-one correspondence with the n welding spot groups, the welding units are used for welding all welding spots of the corresponding welding spot groups when the workpiece moves to the corresponding welding stations,

the ultrasonic welding equipment is also provided with an upper positioning part and a lower positioning part which are arranged on the supporting device, the upper die carrier is detachably connected with the supporting device through the upper positioning part, the lower die carrier is detachably connected with the supporting device through the lower positioning part, the lower positioning part is arranged on the horizontal moving device,

the upper positioning part is arranged on the vertical moving device and is used for vertically moving under the drive of the vertical moving device, the clamping unit is provided with an upper driving piece and a clamping seat connected to the upper driving piece, the top of the upper die frame is provided with a clamping column matched with the clamping seat, the clamping column is provided with a notch used for clamping,

the lower die carrier is detachably arranged on the supporting device through the horizontal moving device and horizontally moves under the drive of the horizontal moving device, the lower die carrier is provided with a lower fixing plate and lower upright posts, the lower fixing plate is a rectangular flat plate, four lower upright posts are respectively arranged at four corner positions of the upper surface of the lower fixing plate and used for supporting the upper die carrier,

the upper die carrier also comprises an upper fixing plate and four upper stand columns, the clamping columns are arranged on the upper surface of the upper fixing plate, the four upper stand columns are respectively arranged at four corner positions of the lower surface of the upper fixing plate and are correspondingly spliced with the four lower stand columns one by one,

when the horizontal moving device drives the replaceable die welding device for ultrasonic welding to horizontally move from the bearing position to the safe welding position, the vertical moving device drives the clamping seat to vertically move to the height position aligned with the notch of the clamping post, then the upper driving piece drives the clamping seat to move forwards, so that the clamping seat is clamped on the notch, and then the vertical moving device drives the upper die frame and the welding part to move upwards, so that the upper die frame is separated from the lower die frame.

2. The die-bonding apparatus for ultrasonic bonding having a plurality of stations according to claim 1, wherein:

wherein the third moving part comprises a third moving guide rail, a third moving piece and a third moving driving piece for driving the third moving piece to move along the third moving guide rail,

the mold portion is disposed on the third moving member.

3. The die bonding apparatus for ultrasonic bonding having a plurality of stations according to claim 2, wherein:

wherein the third moving part further comprises a third limiting guide rail which is arranged in parallel with the third moving guide rail,

the third moving part is sleeved on the third moving guide rail and the third limiting guide rail.

4. The die bonding apparatus for ultrasonic bonding having a plurality of stations according to claim 2, wherein:

wherein the third movable guide rail is a screw rod,

the third moving piece and the third moving guide rail form a screw-nut pair,

the third movable driving piece is a driving motor.

5. The die-bonding apparatus for ultrasonic bonding having a plurality of stations according to claim 1, wherein:

the welding units are provided with welding subunits which are in one-to-one correspondence with the welding spots in the corresponding welding spot groups, and the welding subunits are used for welding the corresponding welding spots.

6. The die bonding apparatus for ultrasonic bonding having a plurality of stations according to claim 5, wherein:

wherein the welding subunit comprises a welding assembly and a lifting assembly for welding,

the welding component is used for welding the welding spots,

the lifting component for welding is arranged on the upper die frame and used for lifting the welding component.

7. The die bonding apparatus for ultrasonic bonding having a plurality of stations according to claim 6, wherein:

wherein the welding subunit further comprises a fixing piece for welding and a lifting buffer piece,

the lifting component for welding is connected with the fixing component for welding through the lifting buffer component, the fixing component for welding is detachably connected with the upper die frame,

the welding assembly includes a welding head and an ultrasonic transducer coupled to the welding head.

8. The die bonding apparatus for ultrasonic bonding having a plurality of stations according to claim 2, wherein:

wherein, the upper die carrier and the lower die carrier are both detachably arranged on the supporting device.

9. The die bonding apparatus for ultrasonic bonding having multiple stations according to claim 1, further comprising:

and the workpiece pressing part is arranged on the lower die frame and used for pressing the workpiece on the positioning die.

10. The die-bonding apparatus for ultrasonic bonding having a plurality of stations according to claim 1, wherein:

wherein the workpiece is a glove box or an instrument panel of an automobile.