An ultrasonic welding apparatus based on terminals of electric automobile parts

Abstract

The present application relates to electric automobile welding technical field, the inside of the welding platform and below the vertical installation of the positioning plate is provided with lifting cylinder, the inside of the lifting cylinder is provided with lifting rod which is movable upward, the end of the lifting rod which is upwardly extended is connected with detachable end cover, the upper end of the detachable end cover is connected with female seat. The present application is through starting lifting cylinder, lifting rod extension, female seat along two groups of guide side plate linearly rises, until the substation and the positioning plate are pasted, the stripping part and the welding head are in contact, then let the lifting rod continue to extend, the female seat continues to rise, and several groups of buffer springs between the female seat and the substation are extruded, the passive welding method is used instead of the active movement of the ultrasonic welding head, on the one hand, the service life of the ultrasonic welding head and the amplitude rod is prolonged, the stability of the ultrasonic welding head during work is improved, on the other hand, the contact force among the three is automatically adjusted and buffered by the buffer spring.

Description

TECHNICAL FIELD

[0001] The present application relates to the electric automobile welding technical field, especially relates to a terminal ultrasonic welding equipment based on electric automobile parts. BACKGROUND

[0002] The new energy electric automobile market in China maintains strong growth, and the sales volume is expected to reach 1650 million (including export) in 2025, with a growth rate of nearly 30%, and the domestic penetration rate will break through 55%, the electric automobile is based on electricity, so the wiring terminal needs to be used in the vehicle machine battery, vehicle-mounted sensor, motor and many electric equipment on the vehicle, for example, alloy terminal, which has excellent electric conductivity, strong mechanical property, strong corrosion resistance and good processing performance; The wiring terminal is welded by the metal sheet and the wire sealed in the insulating plastic, so the terminal ultrasonic welding equipment needs to be used in the processing process.

[0003] The existing terminal ultrasonic welding equipment has many technical defects in use, first, the ultrasonic welding head needs to be pressed at high speed during welding, and the metal sheet and the wire are crimped, on the one hand, the frequent reciprocating motion reduces the service life of the ultrasonic welding head and the amplitude rod, and increases the maintenance cost, on the other hand, the movable design is easy to cause local structure loosening, which reduces the stability of the ultrasonic welding head during work, thereby reducing the welding quality, for example, the welding paste phenomenon occurs, and the wire breakage phenomenon also occurs; The oil stain, oxidation layer and impurities exist on the surface of the metal sheet and the wire, and direct welding reduces the bonding quality of the two, and the existing terminal ultrasonic welding equipment lacks a mechanism capable of automatically cleaning the two, so that the automation degree of the equipment is low.

[0004] In view of the above, considering that the existing facilities cannot meet the working use demand, therefore, we propose a terminal ultrasonic welding equipment based on electric automobile parts. SUMMARY

[0005] The main purpose of the present application is to provide a terminal ultrasonic welding equipment based on electric automobile parts, which can effectively solve the problems in the background art.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is:

[0007] A terminal ultrasonic welding equipment based on electric automobile parts, comprising a welding platform, a support frame is arranged at the lower end of the welding platform, a bearing seat is arranged at the upper end of the welding platform, an ultrasonic welding machine body is installed at the upper end of the bearing seat, a control panel is arranged on the front end face of the ultrasonic welding machine body, an amplitude rod is arranged below the ultrasonic welding machine body, an ultrasonic welding head is connected to the lower end of the amplitude rod, and a positioning plate is horizontally arranged at the position close to the amplitude rod of the front end face of the ultrasonic welding machine body.

[0008] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the inside of the welding platform and below the positioning plate are vertically provided with a lifting cylinder, the inside of the lifting cylinder is upwardly movably provided with a lifting rod, the end of the lifting rod outwardly extends the end of the welding platform and is connected with a detachable end cover, the upper end of the detachable end cover is connected with a female seat, the upper end surface of the welding platform is symmetrically fixed with guide side plates acting on the female seat, and the number of the guide side plates is two groups.

[0009] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the upper end of the female seat is provided with a positioning groove at the rear position, a metal joint piece is placed in the positioning groove, the upper end of the female seat is provided with a buffer groove at the rear position, a plurality of groups of limiting grooves are symmetrically provided on both sides of the buffer groove, the number of the limiting grooves is preferably 2-5 groups, and an inner strip-shaped adjusting groove is provided in each group of the limiting grooves.

[0010] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the inside of the buffer groove is movably provided with a sub-seat, the upper end surface of the sub-seat is in contact with the positioning plate during upward movement, a plurality of groups of moving blocks extending into the limiting grooves are symmetrically connected to both sides of the sub-seat, the number of the moving blocks is preferably 2-5 groups, a spring clamping groove is provided at the bottom of each group of the moving blocks, and the buffer spring is connected between the spring clamping groove and the limiting groove.

[0011] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, a small hydraulic cylinder is horizontally installed in each group of the moving blocks, a hydraulic rod is movably provided outwardly in the inside of the small hydraulic cylinder, a push block is welded at the end of the hydraulic rod, a circular arc part is provided at the end of the push block, the circular arc part extends into the inside of the elastic stop piece, the elastic stop piece moves up and down along the local inner strip-shaped adjusting groove, and two groups of anti-skid spring steels are included on both sides of the elastic stop piece.

[0012] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, a wire laying channel is provided in the inside of the sub-seat and penetrates the front end surface, a lead channel is provided in the inside of the sub-seat and penetrates the rear end surface, and the wire laying channel and the lead channel are connected in communication.

[0013] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the bottom of the lead channel is equidistantly provided with a plurality of groups of traction wheels, the number of the traction wheels is preferably 5-10 groups, the wheel surface of each group of the traction wheels is provided with a friction clamping groove, the friction clamping groove is in contact with the lead wire, the stripped part of the lead wire extends out of the lead channel, the inside of the traction wheel is provided for the wheel shaft to pass through, the both ends of the wheel shaft are fixed by the inner wall of the first bearing seat and the sub seat, 1-2 groups of sprockets are further sleeved on each group of the wheel shaft, the sprockets of adjacent traction wheels are connected and driven by short chains, one group of the wheel shaft extends outward and is connected with a first servo motor by a shaft coupling, and the first servo motor horizontally penetrates the outer side of the sub seat.

[0014] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the inside of the bearing seat is fixedly provided with a second servo motor, the second servo motor is connected with a drive shaft through a shaft coupling, the middle part of the drive shaft is sleeved with a cam, the both ends of the drive shaft are fixed by the inner wall of the second bearing seat and the bearing seat, and the horizontal front side of the cam is provided with a movable cleaner.

[0015] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the movable cleaner comprises a circular table, a wheel groove is formed in the rear end face of the circular table, a pulley is rotatably arranged in the wheel groove, a part of the pulley extends out of the wheel groove and interacts with the wheel surface of the cam, a displacement rod is horizontally fixed to the front end face of the circular table, the displacement rod penetrates through a positioning partition plate, the positioning partition plate is riveted to the inside of the middle position of the receiving cylinder, a return spring is fixed between the positioning partition plate and the circular table and sleeved on the outside of the displacement rod, and a sliding motor seat is riveted to the end of the displacement rod away from the circular table, and the sliding motor seat moves linearly along the track groove in the inside of the receiving cylinder.

[0016] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the inside of the bearing seat is fixedly provided with a second servo motor, the second servo motor is connected with a drive shaft through a shaft coupling, the middle part of the drive shaft is sleeved with a cam, the both ends of the drive shaft are fixed by the inner wall of the second bearing seat and the bearing seat, and the horizontal front side of the cam is provided with a movable cleaner.

[0017] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the intermediate roller is sleeved with a large gear, one side of the large gear is engaged with a small gear, the small gear is sleeved on the output shaft of a constant speed motor, and the constant speed motor is horizontally fixed in the inside of the sliding motor base.

[0018] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the inside of the intermediate roller is provided with a ventilation hole at the middle position, the inside of the rear end of the ventilation hole is provided with a sealing bushing, the inside of the sealing bushing is provided with an elbow pipe, one end of the elbow pipe is connected with an air supply hose, the air supply hose extends to the outside of the receiving cylinder, the inside of the welding platform is provided with a cold air blower, and the air outlet of the air supply hose and the cold air blower is connected.

[0019] As a preferred scheme of the terminal ultrasonic welding equipment based on electric vehicle parts, the outside of the hollow cleaning seat is symmetrically provided with two groups of inner clamping grooves, each group of the inner clamping grooves is movably provided with a folding structure, the number of the folding structures is two groups, the folding structure comprises a folding rod, short shafts are welded to the upper and lower end faces of the folding rod, each group of the short shafts is connected with the inner clamping groove through a damping bearing, one group of the short shafts is connected with a third servo motor through a shaft coupling, one end of the folding rod is connected with an air bag, and the outer end of the air bag is provided with a correcting curved surface acting on the stripping part.

[0020] The terminal ultrasonic welding equipment based on electric vehicle parts is improved, and compared with the prior art, has the following remarkable improvements and advantages:

[0021] The first servo motor is started to drive one group of the traction wheels to rotate counterclockwise, the connection transmission of the multiple groups of short chains allows the sprockets on each group of the wheel shafts to synchronously rotate, each group of the traction wheels synchronously rotates, the frictional force between the friction clamping grooves and the wires is utilized to pull the wires to continue to move into the wire laying channel, and finally the wires are stretched out from the narrow rear end face of the wire laying channel and are fixed straight by the traction wheels, so that the wires are automatically positioned, and the problem of poor positioning effect caused by the flexibility of the wires is avoided.

[0022] The hollow cleaning seat is automatically extended out of the storage cylinder, and the stripping part is just in the central position inside the hollow cleaning seat, at this time, the uniform speed motor is started, and the hollow cleaning seat is driven to rotate by a series of transmission intermediate rollers, on the one hand, a plurality of groups of the first oil absorbing cotton in the hollow cleaning seat are in circular motion, and the outer surface of the stripping part is cleaned to remove impurities and oil stains, on the other hand, a plurality of groups of the second oil absorbing cotton outside the hollow cleaning seat are in synchronous circular motion, and when the second oil absorbing cotton passes through the lower metal joint piece, the upper end face of the metal joint piece is cleaned to remove impurities and oil stains, so that the welding machine has the functions of cleaning the metal piece and the wire at the same time, and the degree of automation is high, and the welding machine can be matched with the assembly line to save time and effort.

[0023] The lifting cylinder is started, the lifting rod is extended, the female seat is linearly raised along the two groups of guide side plates until the female seat and the positioning plate are attached, at this time, the stripping part and the ultrasonic welding head are in contact, then the lifting rod is continuously extended, the female seat is continuously raised, and a plurality of groups of buffer springs between the female seat and the male seat are extruded, until the metal joint piece contacts the stripping part, and the metal joint piece is extruded by the ultrasonic welding head, the passive welding mode is used instead of the active motion of the ultrasonic welding head, on the one hand, the service life of the ultrasonic welding head and the amplitude rod is prolonged, and the stability of the ultrasonic welding head during work is improved, on the other hand, the buffer spring automatically adjusts and buffers the contact force between the three, avoiding damage to the ultrasonic welding head and wire breakage.

[0024] When the pressure value detected by the pressure sensor on the ultrasonic welding head reaches the standard value, a plurality of groups of small hydraulic cylinders are started, the hydraulic rod is extended, the push block drives the elastic stop piece to be inserted into the deeper position of the inner strip-shaped adjusting groove, and the two groups of anti-skid spring steels are extruded by the groove wall of the inner strip-shaped adjusting groove to form a curved contraction state, so that the elastic stop piece is clamped in the inner strip-shaped adjusting groove, a plurality of groups of elastic stop pieces act simultaneously, the female seat is precisely positioned on the female seat by the pressure sensor, the stability of the workpiece during welding and the crimping quality are improved, and the terminal end of the male seat and the female seat is not affected by the reaction force of the spring during the descent, which has a protection effect.

[0025] The third servo motor is started, the short shaft drives the folding rod to turn 90°, and the two groups of folding rods are respectively inserted into the outer opening of the hollow cleaning seat to form a central straightening space, when the hollow cleaning seat is returned, the stripping part copper wire passes through the straightening space and contacts the two groups of straightening curved surfaces to generate a relative force, on the one hand, the deformed copper wire is flexibly straightened to avoid contact damage and improve the welding quality, on the other hand, the stripping part is wiped again to improve the cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of a terminal ultrasonic welding equipment based on electric vehicle parts;

[0027] Figure 2 Structure diagram of the guiding side plate of the present application;

[0028] Figure 3 Connection diagram of the ultrasonic welding head of the present application;

[0029] Figure 4 Driving structure diagram of the female seat of the present application;

[0030] Figure 5 Connection diagram of the female seat and the male seat of the present application;

[0031] Figure 6 Specific structure diagram of the female seat of the present application;

[0032] Figure 7 External structure diagram of the male seat of the present application;

[0033] Figure 8 Specific structure diagram of the elastic stopper of the present application;

[0034] Figure 9 Sectional view of the male seat of the present application;

[0035] Figure 10 Driving structure diagram of the traction wheel of the present application;

[0036] Figure 11 Driving structure diagram of the mobile cleaner of the present application;

[0037] Figure 12 Specific structure diagram of the mobile cleaner of the present application;

[0038] Figure 13 Internal structure diagram of the sliding motor seat of the present application;

[0039] Figure 14 Internal structure diagram of the hollow cleaning seat in the second embodiment of the present application;

[0040] Figure 15 Specific structure diagram of the folding structure of the present application.

[0041] In the figure: 1, welding platform; 2, support frame; 3, bearing seat; 4, ultrasonic welding machine body; 5, control panel; 6, positioning plate; 7, amplitude bar; 8, ultrasonic welding head; 10, lifting cylinder; 11, lifting rod; 12, detachable end cover; 13, female seat; 14, positioning groove; 15, metal joint piece; 16, buffer groove; 17, limiting groove; 18, inner strip-shaped adjusting groove; 20, sub seat; 21, moving block; 22, spring clamping groove; 23, buffer spring; 24, wire laying channel; 25, lead channel; 26, lead wire; 27, stripping part; 30, small hydraulic cylinder; 31, hydraulic rod; 32, push block; 33, circular arc part; 34, elastic stopper; 35, anti-skid spring steel; 40, traction wheel; 41, friction clamp groove; 42, wheel shaft; 43, first bearing seat; 44, sprocket; 45, short chain; 46, first servo motor; 50, second servo motor; 51, drive shaft; 52, cam; 53, second bearing seat; 60, movable cleaner; 61, circular table; 62, wheel groove; 63, pulley; 64, displacement rod; 65, positioning partition plate; 66, return spring; 67, sliding motor seat; 68, storage cylinder; 70, intermediate roller; 71, inner bearing; 72, hollow cleaning seat; 73, No. 1 oil absorbing cotton; 74, No. 2 oil absorbing cotton; 75, large gear; 76, small gear; 77, constant speed motor; 80, folding structure; 81, folding rod; 82, short shaft; 83, damping bearing; 84, third servo motor; 85, air bag; 86, correcting curved surface; 90, guide side plate; 91, ventilation hole; 92, sealing shaft sleeve; 93, elbow; 94, air supply hose; 95, inner clamping groove. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application. Embodiment one

[0043] As Figures 1-13As shown, the present embodiment provides a terminal ultrasonic welding equipment based on electric vehicle parts, which comprises a welding platform 1, the lower end of the welding platform 1 is provided with a support frame 2, the support frame 2 has a supporting effect, the upper end of the welding platform 1 is provided with a bearing seat 3 at the rear position, the bearing seat 3 has the effects of bearing and accommodating, the upper end of the bearing seat 3 is installed with an ultrasonic welding machine body 4, the front end face of the ultrasonic welding machine body 4 is provided with a control panel 5, the control panel 5 includes a display and control buttons, the lower end of the ultrasonic welding machine body 4 is provided with a variable amplitude rod 7, the lower end of the variable amplitude rod 7 is connected with an ultrasonic welding head 8, the ultrasonic welding head 8 is installed with a pressure sensor for detecting the pressure value of the pressure connection.

[0044] Wherein, the front end face of the ultrasonic welding machine body 4 is horizontally provided with a positioning plate 6 close to the position of the variable amplitude rod 7, the position of the positioning plate 6 is set according to the actual situation, the inside of the welding platform 1 and below the positioning plate 6 is vertically installed with a lifting cylinder 10, the inside of the lifting cylinder 10 is upwardly movably provided with a lifting rod 11, the lifting rod 11 upwardly extends out of the end of the welding platform 1 and is connected with a detachable end cover 12, the upper end of the detachable end cover 12 is connected with a female seat 13, the female seat 13 can be detached from the detachable end cover 12 and replaced, the upper end face of the welding platform 1 is symmetrically fixed to the guide side plate 90 acting on the female seat 13, which plays a limiting and guiding role, as Figures 2-4 shown.

[0045] Specifically, the upper end of the female seat 13 is provided with a positioning groove 14 at the rear position, a metal joint piece 15 is placed in the positioning groove 14, and the sizes of the two are matched, the upper end of the female seat 13 is provided with a buffer groove 16 at the rear position, a plurality of sets of limiting grooves 17 are symmetrically provided on both sides of the buffer groove 16, an inner strip-shaped adjusting groove 18 is provided in each set of limiting grooves 17, and the deepest position of the inner strip-shaped adjusting groove 18 is a curved surface, as Figure 5 and Figure 6 shown.

[0046] Further, a sub seat 20 is movably arranged in the buffer groove 16, the upper end face of the sub seat 20 is in contact with the positioning plate 6 in the upward movement process, the contact position remains horizontal, a plurality of sets of moving blocks 21 are symmetrically connected to both sides of the sub seat 20 and extend into the limiting grooves 17, a spring clamping groove 22 is provided at the bottom of each set of moving blocks 21, the buffer spring 23 is connected between the spring clamping groove 22 and the limiting groove 17, and a plurality of sets of buffer springs 23 provide supporting force to the sub seat 20, as Figure 5 and Figure 7 shown.

[0047] Wherein, the inner part of each group of mobile blocks 21 is horizontally installed with a small hydraulic cylinder 30, the outer part of the small hydraulic cylinder 30 is movably provided with a hydraulic rod 31, the end of the hydraulic rod 31 is welded with a push block 32, the end of the push block 32 is provided with a circular arc part 33, the circular arc part 33 extends into the inner part of the elastic stopper 34, the elastic stopper 34 moves up and down along the local inner strip-shaped adjusting groove 18, the two sides of the elastic stopper 34 include two groups of anti-skid spring steels 35, the anti-skid spring steels 35 have the characteristics of deformation reset, as shown in Figure 8 .

[0048] Further, the inner part of the sub-base 20 is provided with a wire laying channel 24 which penetrates the front end face, the inner part of the sub-base 20 is provided with a wire leading channel 25 which penetrates the rear end face, the wire leading channel 25 gradually narrows from front to back, the wire laying channel 24 and the wire leading channel 25 are connected, when taking out, the terminal is pulled out from the wire leading channel 25, as shown in Figure 9 .

[0049] Wherein, the bottom of the wire leading channel 25 is equidistantly installed with several groups of traction wheels 40, the wheel surface of each group of traction wheels 40 is provided with a friction clamping groove 41, which has an inner concave friction pattern design, the friction clamping groove 41 is in contact with the wire 26, the stripping part 27 of the wire 26 extends out of the wire leading channel 25, the inner part of the traction wheel 40 is penetrated by the wheel shaft 42, the two ends of the wheel shaft 42 are fixed to the inner wall of the sub-base 20 by the first bearing seat 43, as shown in Figure 9 and Figure 10 .

[0050] Wherein, 1-2 groups of sprockets 44 are further sleeved on each group of wheel shafts 42, the sprockets 44 of adjacent traction wheels 40 are connected by short chains 45, one group of wheel shafts 42 extends outwardly and is connected with a first servo motor 46 by a shaft coupling, the first servo motor 46 penetrates the outer side of the sub-base 20 horizontally, as shown in Figure 9 and Figure 10 .

[0051] Further, the inner part of the bearing seat 3 is fixedly provided with a second servo motor 50, the second servo motor 50 is connected with a drive shaft 51 through a shaft coupling, the middle part of the drive shaft 51 is sleeved with a cam 52, the cam 52 includes a circular arc protruding part, the two ends of the drive shaft 51 are fixed to the inner wall of the bearing seat 3 by the second bearing seat 53, the horizontal front side of the cam 52 is provided with a movable cleaner 60, as shown in Figure 11 .

[0052] In this embodiment, the movable cleaner 60 includes a circular table 61, the rear end face of the circular table 61 is provided with a wheel groove 62, a pulley 63 is rotatably arranged in the wheel groove 62, the local part of the pulley 63 extends out of the wheel groove 62 and is in action with the wheel surface of the cam 52, as shown in Figure 11 and Figure 12 .

[0053] In the embodiment, the front end surface of the circular table 61 is horizontally fixed with a displacement rod 64, the displacement rod 64 passes through a positioning partition plate 65, a limiting hole for the movement of the displacement rod 64 is arranged in the middle of the positioning partition plate 65, the positioning partition plate 65 is riveted at an intermediate position in the inside of a receiving cylinder 68, the receiving cylinder 68 is horizontally fixed at an intermediate position of the front end surface of the bearing seat 3, a return spring 66 is fixed between the positioning partition plate 65 and the circular table 61 and sleeved outside the displacement rod 64, a sliding motor base 67 is riveted at an end of the displacement rod 64 away from the circular table 61, the sliding motor base 67 moves linearly along the track groove in the inside of the receiving cylinder 68 and plays a limiting and guiding role, as shown in Figure 2 and Figure 12 .

[0054] Specifically, an intermediate roller 70 is rotationally arranged at an intermediate position in the inside of the sliding motor base 67, the intermediate roller 70 is connected with the sliding motor base 67 by means of an inner bearing 71, the intermediate roller 70 extends outwardly of the sliding motor base 67 and is fixed with a hollow cleaning base 72, the hollow cleaning base 72 extends out of the receiving cylinder 68 by horizontal movement, allowing the stripping part 27 to enter the inside thereof, a plurality of groups of first oil-absorbing cotton bars 73 are uniformly distributed at the inner wall of the hollow cleaning base 72, a plurality of groups of second oil-absorbing cotton bars 74 are uniformly distributed at the outer wall of the hollow cleaning base 72, the second oil-absorbing cotton bars 74 act on the upper end surface of the metal joint piece 15, the movement speed of the first oil-absorbing cotton bars 73 and the second oil-absorbing cotton bars 74 is adjustable, and the two need to be regularly degreased and cleaned, as shown in Figure 12 and Figure 13 .

[0055] Among them, the intermediate roller 70 is sleeved with a large gear 75, one side of the large gear 75 is meshingly provided with a small gear 76, the small gear 76 is sleeved on the output shaft of a constant speed motor 77, the constant speed motor 77 is horizontally fixed in the inside of the sliding motor base 67, as shown in Figure 13 .

[0056] Further, an air vent hole 91 is formed in the inside of an intermediate position of the intermediate roller 70, a sealing shaft sleeve 92 is mounted in the rear end inside of the air vent hole 91, having a sealing effect, a bend pipe 93 is arranged in the inside of the sealing shaft sleeve 92, the bend pipe 93 and the intermediate roller 70 relatively move by means of the sealing shaft sleeve 92, one end of the bend pipe 93 is connected with a air supply hose 94, the air supply hose 94 can move with the movement of the sliding motor base 67, the air supply hose 94 extends outwardly of the receiving cylinder 68, a cooling fan is arranged in the inside of the welding platform 1, the air supply hose 94 is connected with the air outlet of the cooling fan, as shown in Figure 12 and Figure 13 .

[0057] In use, the metal joint piece 15 is first placed in the pre-prepared positioning groove 14 for positioning, and then the end of the wire 26 with the stripped part 27 is placed into the wire laying channel 24, allowing it to contact the friction clamping grooves 41 of the traction wheels 40. At this time, the first servo motor 46 is started to drive one set of traction wheels 40 to rotate counterclockwise. The connection transmission of the multiple sets of short chains 45 allows the sprockets 44 on each set of wheel shafts 42 to rotate synchronously, and each set of traction wheels 40 rotates synchronously. The friction between the friction clamping grooves 41 and the wire 26 generates a pulling force on the wire 26, causing it to continue to move into the wire laying channel 24. Since the inner diameter of the wire laying channel 24 becomes smaller and smaller, the wire 26 eventually extends from the narrow rear end of the wire laying channel 24 and is fixed by the multiple sets of traction wheels 40.

[0058] At this time, the second servo motor 50 is started to drive the shaft 51 to rotate the cam 52. The protruding part of the cam 52 interacts with the wheel surface of the pulley 63 during circular motion, generating a squeezing force that causes the circular table 61 and the displacement rod 64 to move linearly (the return spring 66 is compressed), thereby driving the sliding motor base 67 to move linearly along the track groove inside the storage cylinder 68, allowing the hollow cleaning seat 72 to extend out of the storage cylinder 68, and allowing the stripped part 27 to enter the central position inside it. At this time, the constant-speed motor 77 is started, and the pinion gear 76 rotates, causing the large gear 75 to rotate through meshing reduction. The intermediate roller 70 drives the hollow cleaning seat 72 to rotate, which on one hand cleans the outer surface of the stripped part 27 by the circular motion of the multiple sets of first oil-absorbing cotton wipers 73 inside the hollow cleaning seat 72, removing impurities and oil stains, and on the other hand, the multiple sets of second oil-absorbing cotton wipers 74 outside the hollow cleaning seat 72 move synchronously in a circular motion, cleaning the upper surface of the metal joint piece 15 when they pass through it. When the protruding part of the cam 52 moves away from the wheel surface of the pulley 63, the hollow cleaning seat 72 returns to the inside of the storage cylinder 68 under the restoring force of the return spring 66.

[0059] At this time, the lifting cylinder 10 is started, the lifting rod 11 extends, driving the female seat 13 to move linearly along the two sets of guide side plates 90, and the male seat 20 follows, until the male seat 20 and the positioning plate 6 are in close contact. At this time, the stripped part 27 and the ultrasonic welding head 8 are in contact, and then the lifting rod 11 continues to extend, the female seat 13 continues to rise, and the multiple sets of buffer springs 23 between the female seat 13 and the male seat 20 are compressed, causing the multiple sets of moving blocks 21 and the limiting grooves 17 to move relative to each other, serving as a guide, until the metal joint piece 15 contacts the stripped part 27 and is squeezed by the ultrasonic welding head 8, causing it to deform slightly. When the pressure value detected by the pressure sensor on the ultrasonic welding head 8 reaches the standard value, the lifting rod 11 stops moving.

[0060] At this time, several groups of small hydraulic cylinders 30 are started synchronously, the hydraulic rod 31 extends out, the push block 32 drives the elastic stopper 34 to continue to displace and insert into the deeper position of the inner strip-shaped adjusting groove 18, so that the two groups of anti-skid spring steels 35 in the open state are respectively extruded by the groove wall of the inner strip-shaped adjusting groove 18 to form a curved and contracted state, so that the elastic stopper 34 is clamped in the inner strip-shaped adjusting groove 18 through the contact force, and several groups of elastic stoppers 34 act simultaneously, so that the daughter seat 20 is precisely positioned on the mother seat 13.

[0061] At this time, the transducer inside the ultrasonic welding machine body 4 receives the high-frequency electric signal of the generator, generates mechanical vibration through the piezoelectric effect or magnetostrictive effect, the amplitude of the vibration is amplified by the amplitude amplifier 7 and then transmitted to the ultrasonic welding head 8, the ultrasonic welding head 8 concentrates high-frequency vibration to the contact surface of the stripping part 27 and the metal joint piece 15, micro friction is generated on the contact surface, which causes the violent movement of the molecules of the material, the friction heat makes the local temperature of the material rapidly rise to the melting point, the molten material molecules diffuse and penetrate each other to form intermolecular bonding, and the vibration stops for 1-3 seconds, the material cools and solidifies under pressure to form a terminal, and the welding process is completed.

[0062] At this time, the lifting rod 11 is returned downward, thereby driving the mother seat 13 and the daughter seat 20 to move linearly downward (at this time, the daughter seat 20 is still in the positioned state, ensuring sufficient time for the terminal to solidify), until the terminal is lowered to the horizontal position of the receiving cylinder 68, the air cooler is operated, and the cold air enters the hollow cleaning seat 72 through the air supply hose 94, the elbow pipe 93 and the ventilation hole 91 in sequence, and then blows horizontally from the hollow cleaning seat 72 to the terminal area, so as to accelerate the cooling process and achieve the purpose of automatic cooling, and at the same time, the cooling air removes impurities from the No. 1 oil absorbing cotton 73 inside the hollow cleaning seat 72. Embodiment Two

[0063] On the basis of embodiment one, the stripping part 27 of the copper wire of the lead wire 26 is prone to deformation and bending after positioning and cleaning, and the bent copper wire and the metal joint piece 15 are prone to molten adhesion when welded, which leads to poor welding quality and does not meet the factory specifications of the terminal. In order to solve the above technical problems, two groups of inner clamping grooves 95 are symmetrically arranged at the outer opening of the hollow cleaning seat 72, and a folding structure 80 is movably arranged in each inner clamping groove 95. Figure 14 and 15 as shown.

[0064] Specifically, the folding structure 80 includes a folding rod 81, and short shafts 82 are welded to the upper and lower end faces of the folding rod 81. Each group of short shafts 82 is connected with the inner clamping groove 95 by means of a damping bearing 83, and the damping bearing 83 has a certain damping force to avoid self-rotation. One group of short shafts 82 is connected with a third servo motor 84 through a shaft coupling.

[0065] One end of the folding rod 81 is connected with an air bag 85, the air bag 85 has a flexible straightening function, and is adapted to the contact strength of the copper wire. An outer end of the air bag 85 is provided with a correction curved surface 86 which acts on the stripping part 27.

[0066] In use, the folding structure 80 is initially in the inner clamping groove 95 and is in a folded state, so as not to interfere with the cleaning work. When the cleaning of the stripping part 27 and the metal joint piece 15 by the hollow cleaning seat 72 is completed, the third servo motor 84 is started, the short shaft 82 drives the folding rod 81 to turn 90° (the folding rod 81 rotates around the two sets of damping bearings 83), and the two sets of folding rods 81 respectively extend into the outer opening of the hollow cleaning seat 72, forming a central straightening space. When the hollow cleaning seat 72 is returned, the copper wire of the stripping part 27 passes through the straightening space and contacts the two sets of correction curved surfaces 86 to generate a relative force. On one hand, the flexible straightening of the deformed copper wire is performed, and on the other hand, the air bag fabric is used to perform secondary wiping on the stripping part 27, so as to improve the cleaning effect.

[0067] It should be noted that the relational terms herein such as first and second, and the like, are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0068] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic welding apparatus based on the terminals of electric vehicle parts, comprising a welding platform (1), characterized in that: The inside of the welding platform (1) and below the positioning plate (6) is vertically installed with a lifting cylinder (10), the inside of the lifting cylinder (10) is upwardly movably provided with a lifting rod (11), the lifting rod (11) is upwardly connected with a detachable end cover (12) which extends out of the end of the welding platform (1), the upper end of the detachable end cover (12) is connected with a female seat (13); The upper end of the female seat (13) is provided with a buffer groove (16) at the rear position, a plurality of groups of limiting grooves (17) are symmetrically provided on the two sides of the buffer groove (16), an inner strip-shaped adjusting groove (18) is provided in each group of limiting grooves (17), a sub-seat (20) is movably arranged in the buffer groove (16), the upper end surface of the sub-seat (20) is in contact with the positioning plate (6) during upward movement, a plurality of groups of moving blocks (21) are symmetrically connected to the two sides of the sub-seat (20) and extend into the limiting grooves (17), a spring clamping groove (22) is provided at the bottom of each group of moving blocks (21), and the spring clamping groove (22) and the limiting groove (17) are connected by a buffer spring (23); A small hydraulic cylinder (30) is horizontally installed in each group of moving blocks (21), a hydraulic rod (31) is movably arranged outwardly in the small hydraulic cylinder (30), a push block (32) is welded at the end of the hydraulic rod (31), an arc portion (33) is arranged at the end of the push block (32), the arc portion (33) extends into the inside of an elastic stop piece (34), the elastic stop piece (34) moves up and down along the local inner strip-shaped adjusting groove (18), and two groups of anti-skid spring steels (35) are arranged on the two sides of the elastic stop piece (34); The lower end of the welding platform (1) is provided with a support frame (2), the upper end of the welding platform (1) is provided with a bearing seat (3) at the rear position, a second servo motor (50) is fixedly arranged in the inside of the bearing seat (3), the second servo motor (50) is connected with a driving shaft (51) through a shaft coupling, a cam (52) is sleeved on the middle portion of the driving shaft (51), the two end portions of the driving shaft (51) are fixed by the inner wall of the bearing seat (3) and a second bearing seat (53), and a movable cleaner (60) is arranged on the horizontal front side of the cam (52). The mobile cleaner (60) includes a circular table (61), the rear end surface of the circular table (61) is provided with a wheel groove (62), the wheel groove (62) is provided with a pulley (63) rotatingly, the pulley (63) partially extends out of the wheel groove (62) and is in action with the wheel surface of the cam (52), the front end surface of the circular table (61) is horizontally fixed with a displacement rod (64), the displacement rod (64) penetrates through a positioning partition plate (65), the positioning partition plate (65) is riveted at the middle position inside the receiving cylinder (68), the positioning partition plate (65) and the circular table (61) are fixed with a return spring (66) sleeved outside the displacement rod (64), the end of the displacement rod (64) away from the circular table (61) is riveted with a sliding motor base (67), the sliding motor base (67) moves linearly along the track groove inside the receiving cylinder (68); The middle position inside the sliding motor base (67) is provided with a middle roller (70) rotatingly, the middle roller (70) is connected with the sliding motor base (67) by an inner bearing (71), the middle roller (70) extends outside the sliding motor base (67) and is fixed with a hollow cleaning seat (72), the hollow cleaning seat (72) extends out of the receiving cylinder (68) by horizontal movement, the peeling part (27) enters the inside of the hollow cleaning seat (72), the inner wall of the hollow cleaning seat (72) is uniformly distributed with a plurality of groups of first oil absorbing cotton (73), the outer wall of the hollow cleaning seat (72) is uniformly distributed with a plurality of groups of second oil absorbing cotton (74), the second oil absorbing cotton (74) acts on the upper end surface of the metal joint piece (15).

2. A terminal ultrasonic welding apparatus based on electric vehicle parts according to claim 1, characterized in that: The upper end of the bearing seat (3) is provided with an ultrasonic welding machine body (4), the front end surface of the ultrasonic welding machine body (4) is provided with a control panel (5), the lower end of the ultrasonic welding machine body (4) is provided with a variable amplitude rod (7), the lower end of the variable amplitude rod (7) is connected with an ultrasonic welding head (8), the ultrasonic welding head (8) is provided with a pressure sensor, the front end surface of the ultrasonic welding machine body (4) is provided with a positioning plate (6) horizontally at the position close to the variable amplitude rod (7).

3. An ultrasonic welding apparatus based on the terminals of electric vehicle parts according to claim 2, characterized in that: The upper end of the female seat (13) is provided with a positioning groove (14) at the rear position, the positioning groove (14) is placed with a metal joint piece (15), the inside of the female seat (13) is provided with a wire laying channel (24) penetrating through the front end surface, the inside of the female seat (13) is provided with a lead channel (25) penetrating through the rear end surface, the lead channel (25) gradually narrows from front to back, the wire laying channel (24) and the lead channel (25) are communicated.

4. An ultrasonic welding apparatus based on the terminals of electric vehicle parts according to claim 3, characterized in that: The bottom of the lead wire channel (25) is equidistantly provided with a plurality of groups of traction wheels (40), the wheel surface of each group of the traction wheels (40) is provided with a friction clamping groove (41), the friction clamping groove (41) is in contact with the lead wire (26), the stripping part (27) of the lead wire (26) extends out of the lead wire channel (25), the inside of the traction wheel (40) is penetrated by an axle (42), both ends of the axle (42) are fixed by a first bearing seat (43) and the inner wall of the sub-base (20), 1-2 groups of chain wheels (44) are further sleeved on each group of the axle (42), and the chain wheels (44) of adjacent traction wheels (40) are connected and driven by short chains (45).

5. A terminal ultrasonic welding apparatus based on electric vehicle parts as claimed in claim 1, wherein: The intermediate roller (70) is sleeved with a large gear (75), one side of the large gear (75) is provided with a small gear (76) in meshing mode, the small gear (76) is sleeved on the output shaft of a constant-speed motor (77), and the constant-speed motor (77) is horizontally fixed in the inside of the sliding motor base (67).

6. An ultrasonic welding apparatus based on the terminals of electric vehicle parts according to claim 5, characterized in that: The inside of the intermediate roller (70) is provided with a ventilation hole (91) at the middle position, the rear end of the ventilation hole (91) is internally provided with a sealing shaft sleeve (92), the inside of the sealing shaft sleeve (92) is provided with an elbow pipe (93), one end of the elbow pipe (93) is connected with a wind supply hose (94), and the wind supply hose (94) extends to the outside of the storage cylinder (68).

7. An ultrasonic welding apparatus based on terminal of electric automobile parts according to claim 6, characterized in that: The outer opening of the hollow cleaning base (72) is symmetrically provided with two groups of inner clamping grooves (95), each group of the inner clamping grooves (95) is movably provided with a folding structure (80), the folding structure (80) comprises a folding rod (81), the upper and lower end faces of the folding rod (81) are welded with short shafts (82), each group of the short shafts (82) is connected with the inner clamping groove (95) by a damping bearing (83), one group of the short shafts (82) is connected with a third servo motor (84) through a shaft coupling, one end of the folding rod (81) is connected with an air bag (85), and the outer end of the air bag (85) is provided with a correcting curved surface (86) acting on the stripping part (27).

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