CN114274519A

CN114274519A - Ultrasonic welding equipment capable of rapidly replacing die welding device

Info

Publication number: CN114274519A
Application number: CN202111662287.0A
Authority: CN
Inventors: 仲华; 毕顺
Original assignee: Cenwoy Automation Technology Shanghai Co Ltd
Current assignee: Cenwoy Automation Technology Shanghai Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-05

Abstract

The invention provides an ultrasonic welding device capable of quickly replacing a die welding device, which is characterized by comprising: a support device; the mould welding device is provided with a mould frame part, a welding part and a mould part, wherein the mould frame part is provided with an upper mould frame and a lower mould frame which are detachably arranged on the supporting device, the upper mould frame is detachably arranged on the lower mould frame, the welding part is provided with n welding units, and the mould part is provided with a positioning mould; the horizontal moving device is used for enabling the lower die frame and the upper die frame to horizontally move and is provided with a first moving piece, and the lower die frame is detachably arranged on the first moving piece; the vertical moving device is used for enabling the upper die frame to vertically move; the rolling device is arranged on the first moving member and used for contacting the bottom of the lower die carrier and forming rolling friction in the process that the lower die carrier is installed on the first moving member, and the n welding units are arranged in one-to-one correspondence with the n welding spot groups of the workpiece and used for welding all welding spots of the corresponding welding spot groups.

Description

Ultrasonic welding equipment capable of rapidly replacing die welding device

Technical Field

The invention belongs to the field of machinery, and particularly relates to ultrasonic welding equipment capable of rapidly replacing a die welding device.

Background

In the prior art, workpieces such as a glove box and an instrument panel of an automobile are provided with a plurality of welding points (welding points) to be welded, fig. 15 shows a structural schematic diagram of the automobile instrument panel, and it is obvious that the welding points 2 of the instrument panel 1 of the automobile are more (26 welding points 2 in the figure), the position change of different welding points 2 along the height fluctuation of the instrument panel in the vertical direction and the horizontal direction is more complicated, and some welding points are closely spaced and even partially overlapped, which brings great challenges to the welding process of the automobile instrument panel.

Therefore, in the prior art, workers generally hold the welding gun to weld each welding point of the automobile instrument panel one by one, however, the manual welding mode consumes a long time and is high in manpower and material resource cost, and the welding quality depends on the experience of the workers, so that the consistency of the welding quality cannot be guaranteed.

In addition, the prior art also has an automatic welding mode, and it specifically adopts the mode that multiaxis formula robot and welder combined together to realize, thereby multiaxis formula robot drives welder and removes and weld each solder joint to header board in proper order. Although the method can solve the problem of welding quality consistency, the welding process still takes a long time because the number of welding points 2 of the automobile instrument panel 1 is large, the position change is complex, the accurate identification of the welding point position is complex, the time is consumed, and the stroke of the multi-axis robot is large.

In addition, the welding equipment in the prior art can only weld one workpiece, and the adaptability is poor.

Therefore, the research and development of welding equipment which can meet the rapid processing requirements of a glove box and an instrument panel of an automobile and has wide adaptability to various workpieces is urgent.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide an ultrasonic welding apparatus capable of quickly replacing a die welding device, which can meet the demand for quick processing of a glove box and an instrument panel of an automobile.

The invention provides an ultrasonic welding device capable of quickly replacing a die welding device, which is used for carrying out ultrasonic welding on a plurality of welding points of a workpiece and is characterized by comprising the following components: a support device; the mould welding device is provided with a mould frame part, a welding part and a mould part, wherein the mould frame part is provided with an upper mould frame and a lower mould frame which are detachably arranged on the supporting device, the upper mould frame is detachably arranged on the lower mould frame, the welding part is arranged on the upper mould frame and is provided with a welding unit for welding a welding spot, and the mould part is arranged on the lower mould frame and is provided with a positioning mould matched with a workpiece; the horizontal moving device is arranged on the supporting device, is used for horizontally moving the lower die frame and the upper die frame and is provided with a first moving part, the first moving part at least comprises a first moving piece, and the lower die frame is detachably arranged on the first moving piece; the vertical moving device is arranged on the supporting device and is used for enabling the upper die frame to vertically move; the rolling device is arranged on the first moving piece and is used for contacting the bottom of the lower die carrier and forming rolling friction in the process that the lower die carrier is installed on the first moving piece; and the control device is used for controlling the operation of the die welding device, the horizontal moving device, the vertical moving device and the rolling device, 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 arranged in one-to-one correspondence with the n welding spot groups, and the control device is used for welding all the welding spots of the corresponding welding spot groups.

In the ultrasonic welding device capable of rapidly replacing the die welding device provided by the invention, the ultrasonic welding device also has the following characteristics: wherein, rolling device includes two at least rolling portions that set up side by side, and this rolling portion is including setting up a plurality of through-holes and the unit that rolls on first moving member, and a straight line is arranged into to a plurality of through-holes, and the unit that rolls includes drive assembly and a plurality of bull's eye bearing, a plurality of bull's eye bearings and a plurality of through-hole one-to-one setting, thereby drive assembly is used for driving all bull's eye bearings rebound to wear to establish on the through-hole that corresponds and from the upper surface exposure of first moving member.

In the ultrasonic welding device capable of rapidly replacing the die welding device provided by the invention, the ultrasonic welding device also has the following characteristics: the first moving part further comprises a first moving guide rail and a first moving driving part used for driving the first moving part to move along the first moving guide rail, the first moving guide rail is a slide rail and is horizontally arranged on the supporting device, and the first moving driving part is an air cylinder.

In the ultrasonic welding apparatus capable of rapidly replacing the die welding device according to the present invention, the ultrasonic welding apparatus may further include: the lower positioning portion is arranged on the first moving member and used for being detachably connected with the lower die frame, the lower die frame pressing unit is arranged, the lower die frame pressing unit is provided with a turnover pressing piece and a turnover cylinder, and the turnover cylinder is used for driving the turnover pressing piece to turn over so as to fix the lower die frame on the first moving member.

In the ultrasonic welding device capable of rapidly replacing the die welding device provided by the invention, the ultrasonic welding device also has the following characteristics: the vertical moving device is provided with a second moving part, the second moving part comprises a second moving guide rail, a second moving part and a second moving driving part, the second moving driving part is used for driving the second moving part to move along the second moving guide rail, the second moving guide rail is vertically arranged on the supporting device, and the upper die frame is detachably arranged on the second moving part.

In the ultrasonic welding device capable of rapidly replacing the die welding device provided by the invention, the ultrasonic welding device also has the following characteristics: the second moving guide rail is a rack, the second moving part and the second moving guide rail form a gear-rack pair, and the second moving driving part is a servo motor.

In the ultrasonic welding apparatus capable of rapidly replacing the die welding device according to the present invention, the ultrasonic welding apparatus may further include: wherein, go up location portion, set up on the second moving member for can dismantle with last die carrier and be connected, have the joint unit, this joint unit has last driving piece and connects the cassette on the driving piece, the top of going up the die carrier be provided with the joint post of cassette looks adaptation, this joint post has the notch that is used for carrying on the joint, thereby go up the driving piece and be used for driving the cassette and carry out the forward push joint on the notch of joint post.

In the ultrasonic welding device capable of rapidly replacing the die welding device provided by the invention, the ultrasonic welding device also has the following characteristics: the top of the lower die frame is provided with a mounting groove, the bottom of the lower die frame is provided with a plug connector matched with the mounting groove, and the plug connector is used for being inserted into the mounting groove so that the upper die frame can be detachably mounted on the lower die frame.

In the ultrasonic welding device capable of rapidly replacing the die welding device provided by the invention, the ultrasonic welding device also has the following characteristics: the die welding device is characterized by further comprising a third moving part, wherein the third moving part is arranged on the lower die frame and used for enabling the die part to move in the preset horizontal direction, the n welding units correspond to the n welding stations and are arranged in a straight line, the distribution direction is consistent with the preset horizontal direction, and the welding units are used for welding all welding points of the corresponding welding point group when the workpiece moves to the corresponding welding stations.

In the ultrasonic welding device capable of rapidly replacing the die welding device provided by the invention, the ultrasonic welding device also has the following characteristics: wherein, the welding subunit has the welding subunit with the solder joint one-to-one in the solder joint group that corresponds, and the welding subunit is used for welding the solder joint that corresponds, and the welding subunit includes welding subassembly and welding and uses lifting unit, and welding subassembly is used for welding the solder joint, and welding sets up on last die carrier with lifting unit for make welding subassembly go up and down.

Action and Effect of the invention

According to the ultrasonic welding equipment capable of rapidly replacing the die welding device, which is disclosed by the invention, the ultrasonic welding equipment comprises the die welding device, the die welding device comprises a die frame part, a welding part and a die part, the die frame part comprises an upper die frame and a lower die frame, the die part is arranged on the lower die frame and is provided with a 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 point groups on the workpiece, and one welding unit can be used for simultaneously welding all welding points in the corresponding welding point group, so that the whole workpiece can be welded only by sequentially welding the n welding units, and the welding time is greatly shortened.

In addition, because go up the die carrier and all detachably set up on strutting arrangement with the lower die carrier, consequently can change whole ultrasonic bonding and use mould welding set according to the difference of work piece model to make ultrasonic bonding equipment's adaptability better.

In addition, because the ultrasonic welding equipment further comprises a horizontal moving device, the upper die frame is detachably arranged on the supporting device, the horizontal moving device can enable the lower die frame and the upper die to horizontally move together, and further, the position (bearing position) of the die welding device when the die welding device is installed on the supporting device is separated from the position (safe welding position) of the die welding device when the die welding device is welded, and the distance is used as a safe distance to ensure the safety of workers when the die welding device is installed. In the welding process, the horizontal moving device can only move the lower die frame, so that the operation of taking and placing the workpiece can be carried out at the bearing position, the welding is carried out at the safe welding position, and the safety of the worker in taking and placing the workpiece can be ensured by the safe distance.

In addition, because the ultrasonic welding equipment further comprises a rolling device which is arranged on the first moving member, the rolling device can be contacted with the bottom of the lower die carrier and forms rolling friction in the process that the lower die carrier is installed on the first moving member, and therefore the die welding device can be pushed to the first moving member in a labor-saving and rapid mode.

In addition, because this ultrasonic welding equipment still includes vertical mobile device, this vertical mobile device can make the upper die carrier carry out vertical movement to be convenient for put the upper die carrier on strutting arrangement when moving down, and when the welding, drive upper die carrier and welding part and move down, thereby carry out welding process to the work piece of below.

Drawings

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

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

FIG. 3 is a first schematic perspective view of an embodiment of the present invention showing the structure of an ultrasonic welding apparatus with the protective housing, power supply, control, and die bonding devices removed;

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

FIG. 5 is a schematic perspective view of an ultrasonic welding apparatus of an embodiment of the present invention, with the protective case, power supply, control, and die bonding devices 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 first moving member of the horizontal moving device of 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 according to an embodiment of the present invention;

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

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

FIG. 11 is a schematic view showing a state where the latch unit is latched to the latch post in the embodiment of the present invention;

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

FIG. 13 is a schematic flow chart of a die welding apparatus mounted on a support apparatus in an embodiment of the present invention;

FIG. 14 is a schematic flow chart of an ultrasonic welding apparatus for ultrasonic welding of a dashboard of an automobile in an embodiment of the present invention; and

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

Detailed Description

In order to make the technical means, the creation features, the achievement objects and the effects of the present invention easy to understand, the following embodiments are specifically described for the ultrasonic welding device capable of rapidly replacing the die welding device 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 an embodiment of the present invention; FIG. 2 is a schematic perspective view of an ultrasonic welding apparatus with a protective door and a mold welding device removed in accordance with an embodiment of the present invention; FIG. 3 is a schematic perspective view of an ultrasonic welding apparatus in an embodiment of the present invention, with the protective case, power supply, control, and die bonding devices 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 capable of rapidly replacing a die welding device, which is used for welding a workpiece, specifically, an instrument panel of an automobile, and the structure of the instrument panel 1 is shown in fig. 15. The ultrasonic welding apparatus 100 includes a supporting device 10, a die welding 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.

Wherein, the power supply device 70 and the control device 80 are integrated into one electric 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 disposed outside the support portion 11. The protective case 12 protects the front, rear, left, right, and upper sides of the support portion 11. The protective case 12 has an openable protective door 121 provided at the front. In the present embodiment, the spatial orientation of the entire apparatus is defined with the direction in which the protection door 121 is located as the "front" of the entire apparatus, the direction of the protective case 12 with respect to the protection door 121 as the "rear" of the entire apparatus, and the position in which the control device 80 is located as the "right side" of the entire apparatus.

As shown in fig. 3, the support part 11 includes a lower support bracket 111, an upper support bracket 112, a lift pin 113, and a stopper plate 114. The upper support frame 112 is disposed on the lower support frame 111. The lifting guide columns 113 are arranged between the upper support frame 112 and the lower support frame 111, the number of the lifting guide columns is 4, and the 4 lifting guide columns 113 are arranged in a rectangle. The two limit plates 114 are respectively connected to the two lifting guide columns 113. The restriction plate 114 extends in a first horizontal direction (a direction indicated by an arrow X in fig. 3), that is, a front-rear direction of the apparatus.

FIG. 5 is a schematic perspective view of an ultrasonic welding apparatus of an embodiment of the present invention, with the protective case, power supply, control, and die bonding devices 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 first moving member of the horizontal moving device in fig. 6 in a transparent state according to an embodiment of the present invention.

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

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

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

The first moving driver 314 is used to drive the first moving member 312 to reciprocate along the longitudinal direction (the first horizontal direction) of the first moving guide 311. The first movable drive 314 is a pneumatic cylinder.

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

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

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

The second moving driver 413 drives the second moving member 412 to move up and down (move) along the second moving rail 411 and the lift pin 113. The second movable driving member 413 is a servo motor disposed on the upper supporting frame 112.

FIG. 8 is a schematic perspective view of a die bonding apparatus according to an embodiment of the present invention; FIG. 9 is a side view of a die bonding apparatus in an embodiment of the present 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 used for ultrasonic bonding of a plurality of pads 2 of an 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 work pressing portion 25.

The mold frame portion 21 is used for mounting the welding portion 22, the mold portion 23, the third moving portion 24, and the work pressing portion 25. The mold frame portion 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, lower mold frame 212 includes a lower fixing plate 2121, a lower column 2122, and a stopper groove 2123.

The lower fixing plate 2121 is a rectangular flat plate, which is placed on the first moving member 312. The lower fixing plate 2121 has two lateral grooves 21211 opened to the outside (rear side) on the side away from the protective door 121. Four lower posts 2122 are respectively disposed at four corners of the upper surface of the lower fixing plate 2121 for supporting the upper mold frame 211. The four limiting grooves 2123 are disposed on the upper surface of the lower fixing plate 2121 and are divided into two groups, each group including two limiting grooves 2123. Two sets of limiting grooves 2123 are respectively formed at left and right edges of the lower fixing 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 provided on the first moving member 312, and includes a lower frame pressing unit 521 and a lower frame blocking unit 522.

The lower mold frame pressing unit 521 is used to detachably fix the lower mold frame 212 to the first moving member 312, and includes a turn pressing member 5211 and a turn cylinder 5212. The flip pressing member 5211 has a pressing end fitted into the stopper groove 2123. The overturning cylinder 5212 is used for driving the overturning pressing member 5211 to overturn, so that the pressing end is pressed against the limiting groove 2123, thereby pressing and fixing the lower fixing plate 2121 on the first moving member 312. The lower mold frame pressing units 521 are provided in four, and are provided in one-to-one correspondence with the four limiting grooves 2123.

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

The blocking member 5221 is adapted to the shape and size of the lateral recess 21211, and is disposed on the upper surface of the first moving member 312 at a rearward position. The blocking members 5221 are provided in two numbers, and are respectively provided in one-to-one correspondence with the two lateral grooves 21211, and are configured to abut against the lateral grooves 21211 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 disposed on the lower surface of the first moving member 312, and the output end of the blocking cylinder 5222 is connected with a blocking post 5223, which blocking post 5223 is inserted into the mounting hole of the first moving member 312. The blocking cylinder 5222 is used for driving the blocking column 5223 to ascend and descend, and when the blocking column 5223 ascends, the blocking column 5223 is used for blocking and limiting the front side of the lower fixing 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 disposed on the upper support frame 112 through the vertical moving device 40, and is driven by the vertical moving device 40 to be lifted.

As shown in fig. 8 and 9, the upper mold frame 211 includes an upper fixing plate 2111, upper posts 2112, and snap-in posts 2113.

The upper fixing plate 2111 is a rectangular flat plate for mounting on the second moving member 412. The four upper posts 2112 are respectively arranged at four corner positions of the lower surface of the upper fixing plate 2111, and are correspondingly inserted into the four lower posts 2122 one by one. Specifically, the lower column 2122 has a mold-clamping attachment groove 21221 at the top, the upper column 2112 has a mold-clamping plug 21121 at the bottom, the mold-clamping attachment groove 21221 is fitted to the mold-clamping plug 21121, and the plug 21121 can be inserted into the mold-clamping attachment groove 21221 so that the upper mold frame 211 can be detachably attached to the lower mold frame 212. Six engagement posts 2113 are provided on the upper surface of the upper fixing plate 2111, wherein four engagement posts 2113 are provided at four corner positions of the upper fixing plate 2111, respectively, and the remaining two are provided at the front position and the rear position of the middle portion of the upper fixing plate 2111, respectively. The clip post 2113 has two notches 21131 disposed opposite each other

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

FIG. 11 is a diagram illustrating a state where the latch unit is latched to the latch post according to the embodiment of the present invention.

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

As shown in fig. 8 and 9, the welding part 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, the 26 welding spots 2 of the dashboard 1 are divided into 3 welding spot groups according to the positions on the dashboard 1, and the 3 welding spot groups are respectively marked as a first welding spot group, a second welding spot group and a third welding spot group, wherein the first welding spot group includes 12 welding spots 2a, the second welding spot group includes 7 welding spots 2b, and the third welding spot group includes 7 welding spots 2 c.

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

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

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

The welding fixture 2221 is detachably coupled to the lower surface of the upper fixing plate 2111 by means of screw coupling. The welding lifting unit 2224 is connected to the welding holder 2221 via a lifting buffer 2222, and is configured to lift and lower the driving welding unit 2224. The welding lift unit 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 welding head 22231 and an ultrasonic transducer 22232. The horn 22231 is coupled to the ultrasonic transducer 22232, and the ultrasonic transducer 22232 is mounted on the welding connector 22242. The welding heads 22231 are adapted to the corresponding welding spots 2 for ultrasonic welding of the welding spots 2. The upper support frame 112 is further provided with an ultrasonic generator 1121, and the ultrasonic transducer 22232 and the ultrasonic generator 1121 are plugged together through a cable. The frequency of the ultrasonic transducer 22232 is 35 KZ.

The three welding units 221 are sequentially referred to as a first welding unit 221a, a second welding unit 221b, and a second welding unit 221b from front to back, and the three welding stations are referred to 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 part 24 is disposed on the lower fixing plate 2121 and includes a third moving guide 241, a third limit guide 242, a third moving member 243, and a third moving driver 244.

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

The third moving driver 244 is a driving motor, and is disposed on the lower fixing plate 2121 for driving the third moving guide 241 to rotate, so that the moving member 243 moves along the first horizontal direction (front-back direction).

The mold part 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 the positioning molds 231 is one.

The work pressing portion 25 is provided on the upper surface of the third moving member 243 and beside the positioning mold 231 for pressing the instrument panel 1 against the positioning mold 231. The workpiece pressing part is, for example, a pressing block structure driven by an air cylinder, and such a structure is the prior art and is not described in detail herein.

After the workpiece pressing part 25 presses the instrument panel 1 onto the positioning mold 231, the instrument panel is located at the first welding station, and the first welding unit 221a performs ultrasonic welding on all welding points 2a of the first welding point group of the instrument panel 1 at the same time; 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 points 2b of the second welding point group of the instrument panel 1; when the instrument panel 1 is moved to the third welding station along 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 mold welding device 20 in this embodiment is transported to the vicinity of the protective door 121 by a transport 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 disposed 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 part 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 line along the first horizontal direction and are uniformly distributed.

The rolling unit 612 includes a drive assembly 6122, a plurality of bull-eye bearings 6121, and a bearing mounting plate 6123. The plurality of bull-eye bearings 6121 are disposed in one-to-one correspondence with the plurality of through holes 611, and are mounted on the bearing mounting plate 6123. The driving assembly 6122 is disposed on the first moving part 312 and is used to drive the bearing mounting plate 6123 to move upward, so that the bull's eye bearing 6121 is disposed through the corresponding through hole 611 and exposed from the upper surface of the first moving part 312. The driving assembly 6122 includes two air cylinders disposed on the first moving member 312.

When the bull's eye bearing 6121 rises and the die welding apparatus 20 is pushed onto the first moving member 312, rolling friction is formed between the bull's eye bearing 6121 and the lower fixing plate 2121, so that the lower fixing plate 2121 can move on the first moving member 312 very smoothly.

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

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

Referring to fig. 13, the process of mounting the die welding apparatus 20 to the support apparatus 10 in the present application is as follows:

in step S1-1, the mold welding device 20 is transported to the vicinity of the protective door 121 by a transport cart. The height of the transportation cart is equal to the height of the first moving member 312, so that the mold welding device 20 can be transferred to the first moving member 312 by means of horizontal pushing.

In step S1-2, the control device 80 controls the first movable driving element 314 to move the first movable element 312 to a 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 bull 'S eye bearing 6121 to lift, and at this time, the bull' S eye bearing 6121 is exposed from the upper surface of the first moving member 312.

At step S1-4, the die welding device 20 is pushed manually or by other means in the first horizontal direction and from front to back until the die welding device 20 is stopped by the stopper 5221. In the pushing process, the lower fixing plate 2121 of the die welding device 20 is in contact with the bull's eye bearing 6121, rolling friction is formed between the lower fixing plate 2121 and the bull's eye bearing, and the lower fixing plate 2121 is not in contact with the first moving part 312.

In step S1-5, the controller 80 controls the barrier cylinder 5222 to drive the barrier post 5223 to rise, and the barrier post 5223 blocks and limits the front side of the die bonder 20.

In step S1-6, the control device 80 controls the driving assembly 6122 of the rolling unit 612 to drive the bull' S eye bearing 6121 to descend, and the die welding device 20 falls on the first moving part 312.

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

In steps 1 to 8, the control device 80 controls the first movable driving element 314 to move the first movable driving element 312 from the receiving position close to the protection door 121 to the safe welding position far from the protection door 121.

In step S1-9, the control device 80 controls the second movable driving member 413 to drive the second moving member 412 to move down to the installation position, and the clamping seat 5111 of the second movable driving member 413 is aligned with the notch 21131 of the clamping column 2113 of the upper mold frame 211.

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

In step S1-11, the control device 80 controls the second movable driving member 413 to drive the second movable member 412 to ascend to the work-off position when the upper mold frame 211 has been separated from the lower mold frame 212 and the bottom of the welding part 22 is higher than the positioning mold 231 by a predetermined height, which is determined by the size of the instrument panel 1, thereby facilitating the placement of the instrument panel 1 on the positioning mold 231.

The above is the installation process of the die welding device 20 on the support device 10, and in the whole process, the actions other than the actions of transporting the die welding device 20 to the vicinity of the protective door 121 and pushing the die welding device 20 into the support device 10 are all automatically completed under the control of the control device 80, so that the time and labor are saved, and the installation is convenient.

In addition, the types or sizes of the workpieces to be welded are different, the die welding device 20 needs to be replaced in a complete set, and the process of removing the die welding device 20 during replacement is basically opposite to the installation process, so that the description is omitted.

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

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

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

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

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

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

In step 2-4, the device 80 controls the first movable driving element 314 to move the first movable driving element 312 from the receiving position to the safety welding position. The positioning die 231 is now positioned at the first welding station.

In step S2-5, the control device 80 controls the second movable driving element 413 to move the second moving element 412 downward to the mounting position, where the upper post 2112 and the lower post 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 downward to the corresponding welding points 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 welding heads 22231 perform ultrasonic welding, thereby performing ultrasonic welding on all the welding points 2a of the first welding point 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 retreat, and controls the second movable driving member 413 to drive the second moving member 412 to ascend to the workpiece release position.

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

In step S2-11, the control device 80 controls the second movable driving element 413 to move the second moving element 412 downwards to the mounting 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 downward to the corresponding welding points 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 points 2b of the second welding point 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 retreat, and controls the second movable driving member 413 to drive the second moving member 412 to ascend to the workpiece release position.

In step S2-16, the control device 80 controls the third movable driving element 244 to drive the third movable element 243 to move, so that the positioning mold 231 moves from the second welding station to the third welding station.

In step S2-17, the control device 80 controls the second movable driving element 413 to move the second moving element 412 downwards to the mounting 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 downward to the corresponding welding points 2 c.

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 points 2c of the third welding point 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 retreat, and controls the second movable driving member 413 to drive the second moving member 412 to ascend to the workpiece release position.

In step S2-22, the control device 80 controls the third movable driving element 244 to drive the third movable element 243 to move, so that the positioning mold 231 moves from the third welding station to the first welding station.

At step S2-23, the device 80 controls the first movable driving member 314 to move the first movable driving member 312 from the safety welding position to the receiving position.

In step S2-24, the control device 80 controls the workpiece pressing portion 25 to turn over and retreat.

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

As described above, the ultrasonic welding apparatus 100 performs the welding process on 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 in the whole process. When the plurality of instrument panels 1 are welded in batch, the steps S2-1 to S2-25 may be repeated.

Effects and effects of the embodiments

According to the ultrasonic welding equipment of the quick-replaceable die welding device related by the embodiment, because the ultrasonic welding equipment comprises the die welding device, the die welding device comprises a die frame part, a welding part and a die part, the die frame part comprises an upper die frame and a lower die frame, the die part is arranged on the lower die frame and is provided with a 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 point groups on the workpiece, and one welding unit can simultaneously weld all welding points in the corresponding welding point group, therefore, the whole workpiece can be welded through the n welding units in sequence, the welding processing can be completed, and the welding processing time is greatly shortened.

Furthermore, the rolling device comprises at least two rolling parts arranged side by side, each rolling part comprises a plurality of through holes and a rolling unit, the through holes are arranged on the first moving part in a straight line, each rolling unit comprises a driving assembly and a plurality of bull eye bearings, the bull eye bearings and the through holes are arranged in a one-to-one correspondence mode, on one hand, all the bull eye bearings can be driven to move upwards through the driving assemblies so as to penetrate through the corresponding through holes and be exposed out of the upper surface of the first moving part, and therefore the bull eye bearings can be in contact with the bottom of the lower die carrier and form rolling friction in the process that the lower die carrier is installed on the first moving part, and the die welding device can be pushed to the first moving part rapidly in a labor-saving mode; on the other hand, can drive all bullseye bearings and move down through drive assembly after lower die carrier is pushed to first moving member to make lower die carrier drop to first moving member, be convenient for follow-up fix lower die carrier.

Further, because the horizontal moving device is provided with the first moving part, the first moving part comprises a first moving guide rail, a first moving part and a first moving driving part, the first moving guide rail is horizontally arranged on the supporting device, and the lower die frame is detachably arranged on the first moving part, the first moving part can be driven to move along the first moving guide rail through the first moving driving part, so that the lower die frame can be rapidly switched between the bearing position and the safe welding position.

Further, because this ultrasonic welding equipment still includes location portion down, sets up on first moving member, has lower die carrier and compresses tightly the unit, and this lower die carrier compresses tightly the unit and has the upset and compress tightly piece and upset cylinder, thereby can drive the upset and compress tightly the piece and overturn and fix the lower die carrier on first moving member through the upset cylinder, realize that lower die carrier and first moving member can dismantle and be connected.

Further, because the vertical moving device has a second moving portion including a second moving guide rail, a second moving member, and a second moving driving member, the second moving guide rail is vertically provided on the supporting device, and the upper mold frame is detachably provided on the second moving member. Therefore, the second moving driving piece can drive the second moving piece to vertically move along the second moving guide rail.

Furthermore, the second moving guide rail is a rack, the second moving member and the second moving guide rail form a rack-and-pinion, and the second moving driving member is a servo motor, so that the second moving member with a large weight, the upper die frame and the welding part can be reliably moved vertically.

Furthermore, the ultrasonic welding equipment also comprises an upper positioning part which is arranged on the second moving part and is provided with a clamping unit, the clamping unit is provided with an upper driving part and a clamping seat connected to the driving part, the top of the upper die carrier is provided with a clamping column matched with the clamping seat, and the clamping column is provided with a notch for clamping, so that when the upper die carrier needs to be fixed, the clamping seat can be clamped with the clamping column only by driving the clamping seat to push forwards through the driving part; when the upper die frame and the welding part need to be replaced, the upper die frame and the welding part can be separated from the supporting device only by driving the clamping seat to retreat by the driving piece.

Further, because the top of die carrier is provided with the mounting groove down, the bottom of going up the die carrier is provided with the plug connector with mounting groove looks adaptation, thereby this plug connector can insert in the mounting groove so that go up the die carrier detachably and install on die carrier down. The mounting of the upper carrier on the upper carrier can then be effected by means of the lower carrier.

Furthermore, because the die welding device also comprises a third moving part, the third moving part can enable the die part to move in the horizontal direction, the n welding units correspond to the n welding stations and are arranged in a straight line, and the distribution direction is consistent with the moving direction of the positioning die, so that the workpiece can be rapidly transferred among the welding stations through the third moving part, and when the workpiece moves to the corresponding welding stations, the welding units of the welding stations can simultaneously weld all welding points of the corresponding welding point groups, and further the sequential welding of the welding point groups can be rapidly realized.

Furthermore, because the welding units are provided with the welding subunits which correspond to the welding spots in the corresponding welding spot groups one by one, the welding subunits can weld the corresponding welding spots, and therefore, the welding units can weld all the welding spots in the corresponding welding spot groups at the same time. And because the welding subunit includes welding subassembly and for the welding lifting unit, the welding subassembly can weld the solder joint, and the for the welding lifting unit sets up on last die carrier, can go up and down to the welding subassembly.

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

Claims

1. An ultrasonic welding apparatus for rapidly replacing a die bonding device for ultrasonically welding a plurality of weld points of a workpiece, comprising:

a support device;

the mould welding device is provided with a mould frame part, a welding part and a mould part, the mould frame part is provided with an upper mould frame and a lower mould frame which are detachably arranged on the supporting device, the upper mould frame is detachably arranged on the lower mould frame, the welding part is arranged on the upper mould frame and is provided with a welding unit for welding the welding spot, and the mould part is arranged on the lower mould frame and is provided with a positioning mould matched with the workpiece;

the horizontal moving device is arranged on the supporting device, is used for enabling the lower die carrier and the upper die carrier to horizontally move, and is provided with a first moving part, the first moving part at least comprises a first moving piece, and the lower die carrier is detachably arranged on the first moving piece;

the vertical moving device is arranged on the supporting device and is used for enabling the upper die frame to vertically move;

the rolling device is arranged on the first moving piece and is used for contacting the bottom of the lower die frame and forming rolling friction in the process that the lower die frame is installed on the first moving piece; and

a control device for controlling the operation of the die welding device, the horizontal moving device, the vertical moving device and the rolling device,

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

the number of the welding units is n, the n welding units are arranged in one-to-one correspondence with the n welding point groups and are used for welding all the welding points of the corresponding welding point groups.

2. The ultrasonic welding apparatus capable of rapidly replacing a die welding device according to claim 1, wherein:

wherein the rolling device comprises at least two rolling parts arranged side by side, the rolling parts comprise a plurality of through holes and rolling units which are arranged on the first moving part,

a plurality of the through holes are arranged in a straight line,

the rolling unit comprises a driving assembly and a plurality of bull-eye bearings, the bull-eye bearings and the through holes are arranged in a one-to-one correspondence manner,

the driving assembly is used for driving all the bull's eye bearings to move upwards so as to penetrate through the corresponding through holes and be exposed out of the upper surface of the first moving part.

3. The ultrasonic welding apparatus capable of rapidly replacing a die welding device according to claim 1, wherein:

wherein the first moving part further comprises a first moving guide rail and a first moving driving part for driving the first moving part to move along the first moving guide rail,

the first movable guide rail is a slide rail and is horizontally arranged on the supporting device,

the first movable driving member is an air cylinder.

4. The ultrasonic welding apparatus capable of rapid die change of welding device of claim 1, further comprising:

a lower positioning part arranged on the first moving part and detachably connected with the lower die frame, and provided with a lower die frame pressing unit which is provided with a turnover pressing part and a turnover cylinder,

the overturning air cylinder is used for driving the overturning pressing piece to overturn so as to fix the lower die carrier on the first moving piece.

5. The ultrasonic welding apparatus capable of rapidly replacing a die welding device according to claim 1, wherein:

wherein the vertical moving device is provided with a second moving part which comprises a second moving guide rail, a second moving part and a second moving driving part for driving the second moving part to move along the second moving guide rail,

the second moving guide is vertically arranged on the supporting device,

the upper die frame is detachably arranged on the second moving piece.

6. The ultrasonic welding apparatus capable of rapidly replacing a die welding device according to claim 5, wherein:

wherein the second moving guide rail is a rack,

the second moving member and the second moving rail form a rack and pinion,

the second movable driving part is a servo motor.

7. The ultrasonic welding apparatus capable of rapid die change of welding device of claim 5, further comprising:

an upper positioning part arranged on the second moving part and used for being detachably connected with the upper die frame, and provided with a clamping unit which is provided with an upper driving part and a clamping seat connected with the driving part,

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 for clamping,

the upper driving piece is used for driving the clamping seat to be pushed forwards so as to be clamped on the notch of the clamping column.

8. The ultrasonic welding apparatus capable of rapidly replacing a die welding device according to claim 1, wherein:

wherein the top of the lower die carrier is provided with a mounting groove,

the bottom of lower die carrier be provided with the plug connector of mounting groove looks adaptation, this plug connector be used for inserting thereby make in the mounting groove go up the die carrier detachably install down on the die carrier.

9. The ultrasonic welding apparatus capable of rapidly replacing a die welding device according to claim 1, wherein:

wherein the mold welding apparatus further has a third moving portion provided on the lower mold frame for moving the mold part in a predetermined horizontal direction,

the n welding units correspond to the n welding stations and are arranged in a straight line, the distribution direction is consistent with the preset horizontal direction, and the welding units are used for welding all welding points of the corresponding welding point group when the workpiece moves to the corresponding welding stations.

10. The ultrasonic welding apparatus capable of rapidly replacing a die welding device according to claim 1, wherein:

wherein the welding unit is provided with welding subunits which are in one-to-one correspondence with the welding spots in the corresponding welding spot group and are used for welding the corresponding welding spots,

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

the welding assembly is used for welding the welding spots,

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