Integrated double-ultrasonic roll welding device

Abstract

The utility model discloses an integrated double ultrasonic roll welding device which comprises a rack, an adjusting assembly and two sets of ultrasonic roll welding assemblies arranged in the rack, the rack comprises a top plate, a bottom plate, a first side plate and a second side plate, and the top plate and the bottom plate are installed on the upper portion and the lower portion between the first side plate and the second side plate respectively; a sealable functional area and an open roll welding area allowing a to-be-welded metal strip to pass through are formed in the rack; the welding functional surfaces of the welding rollers of the two sets of ultrasonic roll welding assemblies are oppositely arranged to form a welding part, and the welding part is arranged in the roll welding area. The utility model has the beneficial effects that: the defects of ultrasonic instability, easiness in loosening and the like are overcome; the resonance defect is overcome; and rolling welding with the concentricity of 0.001 mm level can be realized at a high speed, and the welding uniformity and reliability are better.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic welding, in particular to a connected double ultrasonic roller welding device. Background Art

[0002] The Chinese utility model patent with publication number CN 113458582 A discloses an ultrasonic roll welding device, including a processing table for carrying workpieces, a movable seat arranged above the processing table; an ultrasonic welding mechanism is arranged on the movable seat, and the ultrasonic welding mechanism includes a welding roller rotatably arranged on the movable seat; the movable seat is driven by a first driver to achieve linear movement, and the movable seat is driven by a second driver to achieve lifting; the ultrasonic welding mechanism also includes a horn and a transducer connected to the welding roller in sequence, and the transducer is electrically connected to an ultrasonic generator; a rotating shaft is fixed at both ends of the welding roller, and the rotating shaft is rotatably arranged on the movable seat through a bearing. The welding roller is driven by the first driver to move in a straight line so that the butt joint of the two workpieces is fully in contact with the welding roller, so as to avoid leakage welding at the butt joint of the two workpieces and achieve better welding effect. This technical solution adopts a single ultrasonic welding component for welding, and there are deficiencies in welding efficiency and reliability.

[0003] In addition, the ultrasonic welding mechanism such as Figure 1 The rolling welding die body 11 and the horn 13 are composed of the rolling welding die body 11 connected to the horn 13 through the connecting stud 12. Although such a structure can reduce the manufacturing cost, the components have defects such as acoustic wave transmission attenuation loss and resonance after assembly, and because there must be tolerances in the connection of the components, it is impossible to achieve high-speed and long-term welding operations with better concentricity. Utility Model Content

[0004] The purpose of the utility model is to provide a one-piece double ultrasonic roller welding device in view of the deficiencies in the above-mentioned prior art. The overall structure is stable and easy to disassemble and assemble, and long-term high-speed welding can be achieved under excellent concentricity, resonance defects can be avoided, and welding uniformity and reliability are significantly improved.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a one-piece double ultrasonic roller welding device, comprising a frame, an adjustment component and two sets of ultrasonic roller welding components arranged in the frame, the frame comprising a top plate, a bottom plate, a first side plate and a second side plate, the top plate and the bottom plate are respectively installed at the upper part and the lower part between the first side plate and the second side plate; a sealable functional area and an open roller welding area for allowing the metal strip to be welded to pass through are formed in the frame; the welding functional surfaces of the welding rollers of the two sets of the ultrasonic roller welding components are arranged relatively to form a welding portion, and the welding portion is placed in the roller welding area.

[0006] The ultrasonic roller welding assembly consists of a first ultrasonic roller welding assembly and a second ultrasonic roller welding assembly arranged in an upper and lower manner. The first ultrasonic roller welding assembly includes a first roller welding unit, and the second ultrasonic roller welding assembly includes a second roller welding unit.

[0007] The first roll welding unit and the second roll welding unit are integrally formed components.

[0008] The first ultrasonic roller welding assembly includes a base, first bearing seats respectively installed at both ends of the base, a first roller welding unit and a transducer, the first roller welding unit is installed in the bearing sleeves of the two first bearing seats, and the transducer is connected to one end of the first roller welding unit; the second ultrasonic roller welding assembly includes a mounting plate, second bearing seats respectively installed at both ends of the mounting plate, a second roller welding unit and a transducer, the second roller welding unit is installed in the bearing sleeves of the two second bearing seats, and the transducer is connected to one end of the second roller welding unit.

[0009] The first clamping node and the second clamping node of the first roller welding unit are respectively installed in the bearing sleeves of the two first bearing seats, realizing a double-support point support structure at a specific node, greatly improving the stability of high-speed welding.

[0010] The first clamping node and the second clamping node of the second roller welding unit are respectively installed in the bearing sleeve of the second bearing seat, realizing a double-support point support structure at a specific node, greatly improving the stability of high-speed welding.

[0011] The total length of the first roller welding unit and the second roller welding unit is 2.5 wavelengths; the first clamping node is set at 0.5 wavelengths, the second clamping node is set at 0.5 wavelengths on the other side of the welding roller, and the driving nodes of the first roller welding unit and the second roller welding unit are located at the outermost 0.5 wavelengths. The first side plate and the second side plate are respectively provided with mounting grooves on the inner sides of the upper and lower parts, and the two side ends of the top plate and the bottom plate are respectively placed in the mounting grooves to form a stable supporting frame structure.

[0012] A first motor mounting plate is installed on the outer side of the first bearing seat located on the inner side of the frame, a first motor seat is installed on the first motor mounting plate, a first servo motor is fixed on the first motor seat, a driving wheel connected to the output shaft of the first servo motor is arranged in the first motor seat, the driving wheel is connected to the synchronous wheel on the driving node of the first roller welding unit through a synchronous belt, the first roller welding unit is driven to roll by the first servo motor to realize the ultrasonic rolling welding function; a second motor mounting plate is installed on the outer side of the second bearing seat located on the inner side of the frame, a second motor seat is installed on the second motor mounting plate, the second servo motor is fixed on the second motor seat, a driving wheel connected to the output shaft of the second servo motor is arranged in the second motor seat, the driving wheel is connected to the synchronous wheel on the driving node of the second roller welding unit through a synchronous belt, the second roller welding unit is driven to roll by the second servo motor to realize the ultrasonic rolling welding function.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the use of an integrated roller welding unit overcomes the ultrasonic instability and easy loosening caused by the combined structure of the welding mold body, the horn and other components, and has the advantages of easy assembly and disassembly, replacement and maintenance; the roller welding unit is arranged in a three-node manner, which reduces the attenuation of ultrasonic transmission and overcomes the resonance defect; the dual ultrasonic dual-fulcrum structure can achieve 0.001mm level concentricity rolling welding at high speed within the ultrasonic frequency range of 10-100KHZ, and the welding uniformity and reliability are better, and the internal resistance is evenly distributed after welding; the dual ultrasonic roller welding components are arranged in the upper and lower positions respectively, which is beneficial to the welding pressure adjustment and the welding operation reliability, the frame is modularized and the structure is stable, and the stability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of an ultrasonic welding mechanism in the prior art;

[0015] Figure 2 is a front view of the roll welding unit;

[0016] Figure 3 is a three-dimensional diagram of a roll welding unit;

[0017] Figure 4 and Figure 5 This is an exploded structural diagram of a one-piece dual ultrasonic roller welding device of the utility model;

[0018] Figure 6 and Figure 7 The utility model is a three-dimensional internal structure diagram of a one-piece double ultrasonic roller welding device. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings. It is worth noting that these specific embodiments are only representative specific embodiments of the present invention, and the specific methods, devices, conditions, materials, etc. cited are not intended to limit the present invention or the corresponding specific embodiments. Figure 6 As a reference standard.

[0020] A one-piece double ultrasonic roller welding device, such as Figure 4-7 As shown, it includes a frame, an adjustment assembly and two sets of ultrasonic roller welding assemblies arranged in the frame, the frame includes a top plate 21, a bottom plate 23, a first side plate 27, a second side plate 28 and a rear plate 22, the top plate 21 and the bottom plate 23 are respectively installed at the upper part and the lower part between the first side plate 27 and the second side plate 28; the rear plate 22 is installed between the first side plate 27 and the second side plate 28, that is, the rear plate 22 is fixed to one side end of the top plate 21 and the bottom plate 23 by bolts or the like. Mounting grooves are respectively arranged on the inner sides of the upper part and the lower part of the first side plate 27 and the second side plate 28, and the two side ends of the top plate 21 and the bottom plate 23 are respectively placed in the mounting grooves to form a stable supporting frame structure. In order to further improve the stability of the frame, the side ends of the top plate 21 and the bottom plate 23 are provided with protrusions that cooperate with the mounting grooves. The protrusions are inserted into the mounting grooves, which can effectively improve the stability and firmness of the connection between the top plate 21 and the bottom plate 23 and the first side plate 27 and the second side plate 28, so that the first side plate 27 and the second side plate 28 can play a better fixing and supporting role, thereby ensuring welding reliability.

[0021] The frame is formed with a sealable functional area and an open roller welding area for the metal strip to be welded to pass through. The first side plate 27 and the second side plate 28 are provided with grooves at the roller welding area corresponding to the first side plate 27 and the second side plate 28. The welding part of the ultrasonic roller welding assembly is provided in the roller welding area.

[0022] The ultrasonic roller welding assembly consists of a first ultrasonic roller welding assembly and a second ultrasonic roller welding assembly arranged in an upper and lower manner, the first ultrasonic roller welding assembly includes a first roller welding unit, the second ultrasonic roller welding assembly includes a second roller welding unit, the welding functional surfaces of the welding rollers 14 of the first roller welding unit and the second roller welding unit are arranged relative to each other to form a welding portion, and the welding portion is placed in the roller welding area in the frame.

[0023] Preferably, the first ultrasonic roller welding assembly includes a base 24, first bearing seats 27 respectively installed at both ends of the base 24, a first roller welding unit 1-1 and a transducer 19, the first roller welding unit 1-1 is installed in the bearing sleeves of the two first bearing seats 27, and the transducer 19 is connected to one end of the first roller welding unit 1-1.

[0024] The second ultrasonic roller welding assembly includes a mounting plate 25, second bearing seats 26 respectively mounted at both ends of the mounting plate 25, a second roller welding unit 1-2 and a transducer 19. The second roller welding unit 1-2 is mounted in the bearing sleeves of the two second bearing seats 26, and the transducer 19 is connected to one end of the second roller welding unit 1-2.

[0025] Among them, the first roll welding unit 1-1 is installed on the upper part of the bottom plate 23, and the second roll welding unit 1-2 is installed on the lower part of the mounting plate 25. The mounting plate 25 and the top plate 21 are connected through an adjustment component to achieve adjustment of the second roll welding unit 1-2, thereby achieving distance adjustment between the welding functional surfaces of the first roll welding unit 1-1 and the second roll welding unit 1-2.

[0026] The adjustment assembly includes a cylinder 31 and a guide column 33. The cylinder 31 is fixed on the mounting hole of the top plate 21. The lower end of the cylinder 31 passes through the mounting hole and is fixedly connected to the mounting seat. The mounting plate 25 is fixed to the bottom of the mounting seat. The cylinder 31 is used to adjust the position of the mounting seat. By adjusting the position of the mounting plate 25, the welding gap between the first roller welding unit 1-1 and the second roller welding unit 1-2, that is, the pressure on the contact surface of the two welding rollers 14, is adjusted.

[0027] A guide column 33 is provided between the mounting seat and the top plate 21 to eliminate the influence of deviations such as swinging during the adjustment of the mounting plate 25 by the cylinder 31 and improve stability. In order to further improve the connection reliability and stability between the mounting plate 25 and the top plate 21, four guide columns 33 are provided, which are respectively located at the four corners of the mounting seat. A pressure sensor 32 is provided on the cylinder 31 to monitor the pressure in the cylinder. Preferably, the pressure sensor 32 is installed on the cylinder body of the cylinder 31 between the mounting seat and the top plate 21.

[0028] A base 24 is installed on the bottom plate 23 for installing the first roller welding unit 1-1. An installation groove is provided in the bottom plate 23, and the base 24 is inserted into the installation groove and fixed by bolts on both sides of the horizontal direction to make its structure stable. The first bearing seats 27 are respectively installed on the upper parts of the two longitudinal sides of the base 24, and the first clamping node 18 and the second clamping node 17 of the first roller welding unit 1-1 are respectively installed in the bearing sleeves of the two first bearing seats 27, so as to realize the double-point support structure at a specific node, which greatly improves the stability of high-speed welding. Preferably, a slot is provided on the base 24, and a protrusion matching the slot is provided at the bottom of the first bearing seat 27, and the protrusion is placed in the slot. The two sides of the horizontal direction of the first bearing seat 27 are respectively fixed to the base 24 by bolts. This structure has the advantages of precise positioning and greater stability.

[0029] A first motor mounting plate 45 is installed on the outer side of the first bearing seat 27 located on the inner side of the frame, and a first motor seat 46 is installed on the first motor mounting plate 45. The first servo motor 41 is fixed on the first motor seat 46. A driving wheel connected to the output shaft of the first servo motor 41 is arranged in the first motor seat 46. The driving wheel is connected to the synchronous wheel on the driving node 16 of the first roller welding unit 1-1 through a synchronous belt 43. The first roller welding unit 1-1 is driven to roll by the first servo motor 41 to realize the ultrasonic rolling welding function.

[0030] Similarly, the mounting plate 25 is used to mount the second roller welding unit 1-2. The second bearing seat 26 is respectively mounted on the lower parts of the longitudinal sides of the mounting plate 25, and the first clamping node 18 and the second clamping node 17 of the second roller welding unit 1-2 are respectively mounted in the bearing sleeve of the second bearing seat 26, realizing a double-pivot support structure at a specific node, greatly improving the stability of high-speed welding. Preferably, a slot is provided on the lower surface of the mounting plate 25, and a protrusion matching the slot is provided at the bottom of the second bearing seat 26, and the protrusion is placed in the slot, and the lateral sides of the second bearing seat 26 are respectively fixed to the mounting plate 25 by bolts. This structure has the advantages of accurate positioning and greater stability.

[0031] A second motor mounting plate 44 is installed on the outer side of the second bearing seat 26 located on the inner side of the frame, and the second motor mounting plate 44 is installed on the second motor seat. The second servo motor 42 is fixed on the second motor seat, and a driving wheel connected to the output shaft of the second servo motor 42 is arranged in the second motor seat. The driving wheel is connected to the synchronous wheel on the driving node 16 of the second roller welding unit 1-2 through a synchronous belt, and the second roller welding unit 1-2 is driven to roll by the second servo motor 42 to realize the ultrasonic rolling welding function.

[0032] The utility model realizes synchronous high-speed welding of the upper and lower surfaces through two double-pivot ultrasonic roller welding assemblies that cooperate with each other and are arranged up and down. The contact area is uniform and the residual area is appropriate. The welding efficiency and reliability are greatly improved. It is more in line with the conveying characteristics of metal film materials and avoids welding defects such as misalignment caused during the conveying process.

[0033] Priority, such as Figure 2 and Figure 3As shown, the first roll welding unit 1-1 and the second roll welding unit 1-2 are integrally formed components including a horn and a welding roller 14, which can effectively reduce the ultrasonic instability, easy looseness defects, and easy attenuation failure defects caused by the combination of various components in the conventional structure, and can effectively maintain a very good concentricity state during long-term high-speed welding to ensure welding quality. Preferably, the total length of the first roll welding unit 1-1 and the second roll welding unit 1-2 is 2.5 wavelengths. A welding roller 14 is provided on the first roll welding unit 1-1 and the second roll welding unit 1-2, and the welding roller 14 is a welding contact component. A first clamping node 18 and a second clamping node 17 are respectively provided on the horn on both sides of the welding roller 14. The first clamping node 18 and the second clamping node 17 are respectively fixed in the bearing sleeve on the bearing seat (the second bearing seat 26, the first bearing seat 27). A driving node 16 is provided outside the second clamping node 17, and a synchronous wheel for driving is installed on the driving node 16. The synchronous wheel is connected to the driving wheel on the servo motor through a synchronous belt 43, and the rolling welding function is realized under the drive of the synchronous belt 43. Preferably, the first clamping node 18 is set at 0.5 wavelength, the second clamping node 17 is set at 0.5 wavelength on the other side of the welding roller 14, the driving node 16 of the first roller welding unit 1-1 and the second roller welding unit 1-2 is located at the outermost 0.5 wavelength, and a card slot for engaging with the synchronous wheel is set at the circumference of the driving node 16. At one end of the driving node 16 is the transducer connection end 15. The transducer connection end 15 is connected to the transducer 19. The transducer 19 is connected to the power line through a slip ring.

[0034] A first outer cover 51 is provided at the welding roller 14 of the first roller welding unit 1-1, and is used to cover the welding functional area between the two first bearing seats 27. A roller window 53 is provided on the first outer cover 51 to allow the welding roller 14 to extend out of the welding, and the welding portion of the welding roller 14 extends out of the roller window 53. A second outer cover 52 is provided at the welding roller 14 of the second roller welding unit 1, and is used to cover the welding functional area between the two second bearing seats 26. A roller window 53 is provided on the second outer cover 52 to allow the welding roller 14 to extend out of the welding, and the welding portion of the welding roller 14 extends out of the roller window 53.

[0035] A top cover 61 is provided on the top plate 21 to cover the internal structure on the top plate 21. A first cover plate 62 and a second cover plate 63 are provided on the two sides, respectively, and heat dissipation holes are provided on the first cover plate 62 and the second cover plate 63. Heat dissipation holes and fan mounting holes 64 are provided on the rear plate 22, and a heat dissipation fan is installed on the fan mounting holes 64. Two lifting rings are provided on the top plate 21, and the lifting rings extend out of the outside of the top cover 61, which is conducive to convenient lifting and transportation.

[0036] Effect test

[0037] The one-piece dual ultrasonic roller welding device described in the present application welds 10 groups of ABA composite aluminum and ABA composite copper under different conditions with upper and lower concentricity of 1U and upper and lower concentricity of 10U, and the welded samples are subjected to tensile test, internal resistance test and perforation rate observation. The tensile test is measured by a tensile tester, and the internal resistance test is measured by a resistance tester. The measurement results are shown in Tables 1-3 below.

[0038] Table 1 shows the welding speed of ABA composite copper at 40 meters per minute.

[0039]

[0040] Table 2 shows the welding speed of ABA composite copper at 80 m / min.

[0041]

[0042] Table 3 shows the welding speed of ABA composite aluminum at 80 meters per minute.

[0043]

[0044] According to the data in the above table, when the welding speed is 40 meters per minute, the tension of ABA composite copper roll welding with a concentricity of 1UM is greater than that of 10UM, and the internal resistance distribution is more uniform, which also proves that the welding uniformity and stability of high-speed welding with more concentricity are improved. When the welding speed is 80 meters per minute, the welding tension of ABA composite copper and ABA composite aluminum with a concentricity of 1UM is greater than the welding tension of 10UM; the internal resistance uniformity of ABA composite copper is better, but the internal resistance uniformity of ABA composite aluminum lacks regularity, which may be caused by measurement conditions and errors. It can be seen that the present application can achieve high-speed and stable welding at a speed of up to 80 meters per minute when the concentricity is 1UM.

[0045] The above is only a preferred embodiment of the present utility model, and it cannot be used to limit the scope of the implementation of the present utility model. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present utility model and the content of the utility model description are still within the scope of the present utility model patent.

Claims

1. A one-piece dual ultrasonic roller welding device, characterized in that: The invention comprises a frame, an adjustment component and two sets of ultrasonic roller welding components arranged in the frame, wherein the frame comprises a top plate, a bottom plate, a first side plate and a second side plate, wherein the top plate and the bottom plate are respectively installed at the upper part and the lower part between the first side plate and the second side plate; a sealable functional area and an open roller welding area for allowing the metal strip to be welded to pass through are formed in the frame; the welding functional surfaces of the welding rollers of the two sets of ultrasonic roller welding components are arranged opposite to each other to form a welding portion, and the welding portion is placed in the roller welding area.

2. The one-piece dual ultrasonic roller welding device according to claim 1, characterized in that: The ultrasonic roller welding assembly consists of a first ultrasonic roller welding assembly and a second ultrasonic roller welding assembly arranged in an upper and lower manner. The first ultrasonic roller welding assembly includes a first roller welding unit, and the second ultrasonic roller welding assembly includes a second roller welding unit.

3. The one-piece dual ultrasonic roller welding device according to claim 2, characterized in that: The first roll welding unit and the second roll welding unit are integrally formed components.

4. The one-piece dual ultrasonic roller welding device according to claim 3 is characterized in that: The first ultrasonic roller welding assembly includes a base, first bearing seats respectively installed at both ends of the base, a first roller welding unit and a transducer, the first roller welding unit is installed in the bearing sleeves of the two first bearing seats, and the transducer is connected to one end of the first roller welding unit; the second ultrasonic roller welding assembly includes a mounting plate, second bearing seats respectively installed at both ends of the mounting plate, a second roller welding unit and a transducer, the second roller welding unit is installed in the bearing sleeves of the two second bearing seats, and the transducer is connected to one end of the second roller welding unit.

5. The one-piece dual ultrasonic roller welding device according to claim 4, characterized in that: The first clamping node and the second clamping node of the first roll welding unit are respectively installed in the bearing sleeves of the two first bearing seats.

6. The one-piece dual ultrasonic roller welding device according to claim 4, characterized in that: The first clamping node and the second clamping node of the second roll welding unit are respectively installed in the bearing sleeve of the second bearing seat.

7. A one-piece dual ultrasonic roller welding device according to claim 5 or 6, characterized in that: The total length of the first roller welding unit and the second roller welding unit is 2.5 wavelengths; the first clamping node is set at 0.5 wavelengths, the second clamping node is set at 0.5 wavelengths on the other side of the welding roller, and the driving nodes of the first roller welding unit and the second roller welding unit are located at the outermost 0.5 wavelengths.

8. The one-piece dual ultrasonic roller welding device according to claim 7, characterized in that: A first motor mounting plate is installed on the outer side of the first bearing seat located on the inner side of the frame, a first motor seat is installed on the first motor mounting plate, a first servo motor is fixed on the first motor seat, a driving wheel connected to the output shaft of the first servo motor is arranged in the first motor seat, the driving wheel is connected to the synchronous wheel on the driving node of the first roller welding unit through a synchronous belt; a second motor mounting plate is installed on the outer side of the second bearing seat located on the inner side of the frame, a second motor seat is installed on the second motor mounting plate, a second servo motor is fixed on the second motor seat, a driving wheel connected to the output shaft of the second servo motor is arranged in the second motor seat, the driving wheel is connected to the synchronous wheel on the driving node of the second roller welding unit through a synchronous belt.

9. The one-piece dual ultrasonic roller welding device according to claim 1, characterized in that: The first side plate and the second side plate are provided with mounting grooves at the upper inner sides and the lower inner sides, respectively, and the two side ends of the top plate and the bottom plate are respectively placed in the mounting grooves to form a stable supporting frame structure.

10. The one-piece dual ultrasonic roller welding device according to claim 4, characterized in that: The mounting plate and the top plate are connected via an adjusting assembly.

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