An ultrasonic inverting welder for wire harnesses

Abstract

The utility model belongs to ultrasonic welding technical field, concretely relates to a kind of ultrasonic inverted welding machine for wire harness, including rack and bottom plate;Ultrasonic triple group, including energy transducer, amplitude modulator and ultrasonic welding head connected in order, the ultrasonic welding head is installed in the bottom plate;Driving mechanism, installation in the rack, the output end of the driving mechanism connects bottom die, for driving the bottom die up and down movement;Limiting mechanism, installation in the bottom plate, for the ultrasonic welding head is positioned, to make the ultrasonic welding head and the bottom die opposite layout;And fixture, installation in the bottom plate, for wire harness is clamped positioning, to make wire harness be located between the ultrasonic welding head and the bottom die;The utility model places wire harness between ultrasonic welding head and bottom die by moving mode to bottom die, can provide avoidance space for wire harness, avoid interference between wire harness and welding machine when welding, affect welding quality.

Description

Technical Field

[0001] This utility model belongs to the field of ultrasonic welding technology, and specifically relates to an ultrasonic inverted welding machine for wire harnesses. Background Technology

[0002] Ultrasonic welding, as an advanced welding technology, boasts high fusion strength, good conductivity, spark-free operation, near-cold working properties, and the ability to weld materials that do not melt or brittle metals. The welded material exhibits excellent conductivity with extremely low or near-zero resistivity. It has low requirements for the surface of the weld metal; oxidation or electroplating is acceptable. Welding time is short, and no flux, gas, or solder is needed. The welding process is spark-free, making it environmentally friendly and safe. However, ultrasonic welding places high demands on the welding process. Inappropriate welding parameter settings and insecure workpiece positioning can significantly reduce the service life and conductivity of the welded product.

[0003] Wire bonding is a welding technique that uses ultrasonic technology to weld copper or aluminum wires together. It is widely used in the wire harness industry. In common applications, the conductive cross-sectional area of ​​the copper or aluminum wires is typically 1–200 mm². 2 The welding area is generally planar, and the wires used include copper wire, aluminum wire, and tin-plated wire.

[0004] After stripping the insulation from copper and aluminum wires, the cross-section of the wire is circular. After ultrasonic welding, it is required to be rectangular. This welding requirement can be achieved by using a combination of special fixtures and ultrasonic welding machines.

[0005] The inventors discovered that existing conventional welding machines typically place the ultrasonic triplet at the top and the bottom mold at the bottom. During ultrasonic welding, the welding head is lowered to the welding position, and wire welding requires manual placement of the wire into the clamps from both sides. Because the ultrasonic triplet is positioned at the top and the welding head protrudes from it, space constraints make manual wire placement very inconvenient. In conventional wire welding, the bottom mold is at the bottom, the left and right stops are above the bottom mold, and the welding head presses down for welding. After multiple welding operations, the welding head wears out easily, and replacement costs are high as welding heads are consumables.

[0006] Therefore, it is necessary to improve upon the shortcomings of existing technologies in order to overcome their deficiencies in practical applications. Utility Model Content

[0007] Based on the aforementioned shortcomings and deficiencies in the prior art, one of the objectives of this utility model is to at least solve one or more of the aforementioned problems in the prior art. In other words, one of the objectives of this utility model is to provide an ultrasonic inverted welding machine for wire harnesses that meets one or more of the aforementioned requirements.

[0008] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0009] This utility model provides an ultrasonic inverted welding machine for wire harnesses, comprising:

[0010] Frame and base plate;

[0011] An ultrasonic triplet assembly includes a transducer, an amplitude modulator, and an ultrasonic welding head connected in sequence, wherein the ultrasonic welding head is mounted on the base plate;

[0012] A drive mechanism is mounted on the frame, and the output end of the drive mechanism is connected to the bottom mold to drive the bottom mold to move up and down.

[0013] A limiting mechanism, installed on the base plate, is used to limit the ultrasonic welding head so that the ultrasonic welding head is positioned directly opposite the bottom mold; and

[0014] A clamp, mounted on the base plate, is used to clamp and position the wire harness so that the wire harness is positioned between the ultrasonic welding head and the bottom mold.

[0015] As a preferred embodiment, the driving mechanism includes a driving part, a fixing component, a guiding component, and an adjusting component. The guiding component is mounted on the frame, the driving part is connected to the fixing component, the fixing component is connected to the bottom mold, and the adjusting component is mounted on the frame and used to adjust the vertical movement position of the bottom mold.

[0016] As a preferred embodiment, the fixing component includes a floating joint, a fixed base, and a pressure sensor. The driving part is connected to the floating joint, the floating joint is connected to the pressure sensor, the pressure sensor is connected to the fixed base, and a bottom mold is installed below the fixed base.

[0017] As a preferred embodiment, the guide assembly includes a slide rail and a slider, the slide rail being fixed to the frame and the slider being slidably engaged with the slide rail.

[0018] As a preferred embodiment, the adjustment assembly includes a rotating shaft, a helical gear, a screw, and a nut. The rotating shaft is connected to the helical gear, the helical gear is connected to the screw, and the screw is connected to the nut. A limiting block is connected to the slider, and the limiting block cooperates with the nut to adjust the welding position of the bottom mold in the vertical direction.

[0019] As a preferred embodiment, a hydraulic damper is installed on the frame. When the slider rises, the hydraulic damper contacts and engages with the slider to buffer it.

[0020] As a preferred embodiment, the base plate is provided with an adjustment plate, the adjustment plate is provided with a base, the amplitude modulator is connected to a clamp, and the clamp is installed on the base; the adjustment plate cooperates with the base plate to adjust the position of the ultrasonic welding head in the left-right direction.

[0021] As a preferred embodiment, the base is provided with a stop block, a pressure block, a fixing block and an adjusting bolt. An ultrasonic welding head is installed between the pressure block and the stop block. The adjusting bolt passes through the fixing block and abuts against the ultrasonic welding head to adjust the position of the ultrasonic welding head in the front-back direction.

[0022] As a preferred embodiment, the clamp includes a wire groove, a wire stop, and a clamping part. The wire groove holds a wire harness, the wire stop abuts against both ends of the wire harness, and the clamping part clamps the sidewalls of the wire harness.

[0023] Compared with the prior art, the advantages of this utility model are:

[0024] This invention provides an ultrasonic inverted welding machine for wire harnesses. By using a movable bottom mold, it is convenient for manual placement of the wire harness between the ultrasonic welding head and the bottom mold, which can provide clearance for the wire harness, avoid interference between the wire harness and the welding machine during welding, improve the operating space, and reduce the impact on welding quality.

[0025] This utility model provides an ultrasonic inverted welding machine for wire harnesses. By placing the ultrasonic welding head at the bottom and the bottom mold at the top, the bottom mold is moved upward after welding is completed. Since the bottom mold is a consumable part, the cost of consumable parts can be reduced, and it is also convenient to replace the bottom mold. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of an ultrasonic inverted welding machine for wire harnesses according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the clamp according to an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the ultrasonic inverted welding machine according to another perspective of this utility model embodiment;

[0030] Figure 4 This is a schematic diagram of the structure of the adjustment component according to an embodiment of the present invention;

[0031] Figure 5 This is a cross-sectional view of the adjustment component according to an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the limiting mechanism according to an embodiment of the present utility model;

[0033] In the diagram: 1. Frame, 2. Base plate, 3. Ultrasonic triple unit, 31. Ultrasonic welding head, 32. Amplitude modulator, 321. Clamp, 33. Transducer, 4. Drive mechanism, 41. Drive unit, 42. Fixing component, 421. Floating joint, 422. Fixing seat, 423. Pressure sensor, 43. Guide component, 431. Slide rail, 432. Slider, 4321. Limit block, 44. Adjustment component, 441. Rotating shaft, 442. Helical gear, 443. Screw, 444. Nut, 45. Hydraulic buffer, 46. Bottom mold, 5. Limiting mechanism, 51. Adjusting plate, 52. Base, 53. Stop block, 54. Pressure block, 55. Fixing block, 56. Adjusting bolt, 6. Clamp, 61. Wire groove, 62. Wire stop, 63. Clamping part. Detailed Implementation

[0034] To more clearly illustrate the embodiments of this application, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0035] In the description of the embodiments of this application, the terms "upper," "lower," "front," "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the application. In addition, the terms "first," "second," etc., are only used for distinction in description and have no special meaning.

[0036] According to some embodiments of this application, such as Figures 1 to 6 As shown, an ultrasonic inverted welding machine for wire harnesses is provided, including a frame 1, a base plate 2, an ultrasonic triple unit 3, a drive mechanism 4, a limiting mechanism 5, and a clamp 6. The ultrasonic triple unit 3 includes a transducer 33, an amplitude modulator 32, and an ultrasonic welding head 31 connected in sequence, with the ultrasonic welding head 31 mounted on the base plate 2. The drive mechanism 4 is mounted on the frame 1, and its output end is connected to a bottom mold 46 for driving the bottom mold 46 to move up and down. The limiting mechanism 5 is mounted on the base plate 2 for limiting the ultrasonic welding head 31 so that the ultrasonic welding head 31 and the bottom mold 46 are positioned facing each other. The clamp 6 is mounted on the base plate 2 for clamping and positioning the wire harness so that the wire harness is positioned between the ultrasonic welding head 31 and the bottom mold 46.

[0037] In some embodiments of this application, the drive mechanism 4 includes a drive unit 41, a fixing component 42, a guide component 43, and an adjustment component 44. The guide component 43 is mounted on the frame 1, the drive unit 41 is connected to the fixing component 42, the fixing component 42 is connected to the bottom mold 46, and the adjustment component 44 is mounted on the frame 1 and is used to adjust the position of the bottom mold 46 moving up and down.

[0038] Specifically, the drive unit 41 drives the fixing component 42 to move up and down along the guide component 44, thereby linking the bottom mold 46 to move up and down. The welding position of the bottom mold 46 can be controlled by adjusting the component 44, so that the bottom mold 46 cooperates with the ultrasonic welding head 31 to weld the wire harness. The drive unit 41 can be configured as a cylinder, which has low operating cost and is easy to operate. The drive unit can also be an electric cylinder or a servo motor, which can be selected according to actual needs.

[0039] In some embodiments of this application, the fixing component 42 includes a floating joint 421, a fixing seat 422 and a pressure sensor 423. The driving part 41 is connected to the floating joint 421, the floating joint 421 is connected to the pressure sensor 423, the pressure sensor 423 is connected to the fixing seat 422, and the bottom mold 46 is installed below the fixing seat 422.

[0040] Specifically, the output end of the cylinder is connected to a floating joint, the lower end of the floating joint is connected to a pressure sensor, and the lower end of the pressure sensor is connected to a fixed base. The lower end of the fixed base is used to mount the bottom mold. The floating joint eliminates lateral forces caused by tilting of the drive unit's output end or structural errors, preventing damage to the ultrasonic welding machine's structure and extending its service life. The floating joint can be a spherical bearing, which has advantages such as high load capacity and good impact resistance. The pressure sensor is used to collect the pressure during the welding process to ensure controllable pressure when welding wire harnesses.

[0041] In some embodiments of this application, the guide assembly 43 includes a slide rail 431 and a slider 432. The slide rail 431 is fixed to the frame 1, the slider 432 slides with the slide rail 431, and a fixed seat 422 is connected to the slider 431.

[0042] Specifically, the frame 1 is provided with a slide rail 431 in the vertical direction, and a slider 432 is slidably fitted on the slide rail 431. The front side of the slider 431 is connected to a fixed seat 422, and the lower end of the fixed seat 422 is connected to the bottom mold 46, thereby controlling the up and down movement of the bottom mold 46.

[0043] In some embodiments of this application, the adjustment assembly 44 includes a rotating shaft 441, a helical gear 442, a screw 443, and a nut 444. The rotating shaft 441 is connected to the helical gear 442, the helical gear 442 is connected to the screw 443, and the screw 443 is connected to the nut 444. A limiting block 4321 is connected to the slider 432. The limiting block 4321 cooperates with the nut 444 to adjust the welding position of the bottom mold 46 in the vertical direction.

[0044] Specifically, by rotating the shaft 441 in conjunction with the helical gear 442, and by rotating the helical gear 442 in conjunction with the screw 443, the rotational motion of the shaft 441 in the horizontal direction can be converted into the linear motion of the screw 442 in the vertical direction, thereby causing the screw 443 to move up and down in conjunction with the nut 444.

[0045] Furthermore, a limiting block 4321 is provided on the back of the slider 432. The limiting block 4321 cooperates with the nut 444 to restrict the vertical movement of the slider 432, thereby adjusting the welding position of the bottom mold 46.

[0046] In some embodiments of this application, a hydraulic buffer 45 is installed on the frame 1. When the slider 432 rises, the hydraulic buffer 45 contacts and engages with the slider 532 to buffer the slider 532, thereby preventing the slider from colliding with the frame and playing a buffering role.

[0047] In some embodiments of this application, a limiting mechanism 5 is installed on the base plate 2. The limiting mechanism 5 includes an adjusting plate 51 provided on the base plate 2. A base 52 is provided on the adjusting plate 51. An amplitude modulator 32 is connected to a clamp 321, and the clamp 321 is installed on the base 52. The adjusting plate 51 cooperates with the base plate 3 to adjust the position of the ultrasonic welding head 31 in the left and right directions.

[0048] Specifically, the adjustment plate 51 is provided with a waist hole. By installing a locking bolt in the waist hole, the distance between the adjustment plate 51 and the frame 1 is controlled, thereby controlling the position of the ultrasonic welding head 31 installed on the adjustment plate 51 in the left and right directions.

[0049] In some embodiments of this application, the base 52 is provided with a stop block 53, a pressure block 54, a fixing block 55 and an adjusting bolt 56. An ultrasonic welding head 31 is installed between the pressure block 54 and the stop block 53. The adjusting bolt 56 passes through the fixing block 55 and abuts against the ultrasonic welding head 31 to adjust the position of the ultrasonic welding head 31 in the front-back direction.

[0050] Specifically, the pressure block 54 includes a positive pressure block and a side pressure block. The positive pressure block is located at the front end of the ultrasonic welding head 31, the side pressure blocks are located on the left and right sides of the ultrasonic welding head 31, the stop block 53 is located at the rear end of the ultrasonic welding head 31, and the fixing block 55 is provided with an adjusting bolt 56. The adjusting bolt 56 abuts against the pressure block 54 at the front end to adjust the position of the ultrasonic welding head 31 in the front-back direction, thereby achieving clamping and fixing.

[0051] In some embodiments of this application, the clamp 6 includes a wire groove 61, a wire stop 62, and a clamping part 63. The wire groove 61 holds the wire harness, the wire stop 62 abuts against both ends of the wire harness, and the clamping part 63 clamps the side wall of the wire harness.

[0052] Specifically, the wire harness is fixed by placing it in the wire groove, with both ends abutting against the wire stop, and clamping the sidewalls of the wire harness with the clamping part. By using a movable bottom mold, it is easy to manually place the wire harness between the ultrasonic welding head and the bottom mold, which can provide clearance for the wire harness and avoid interference between the wire harness and the welding machine during welding, thus affecting the welding quality.

[0053] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0054] The above description is only a detailed explanation of the preferred embodiments and principles of this application. For those skilled in the art, there may be changes in the specific implementation methods based on the ideas provided in this application, and these changes should also be considered within the scope of protection of this application.

Claims

1. An ultrasonic inverted welding machine for wire harnesses, characterized in that, include: Frame and base plate; An ultrasonic triple unit includes a transducer, an amplitude modulator, and an ultrasonic welding head connected in sequence, wherein the ultrasonic welding head is mounted on the base plate; A drive mechanism is mounted on the frame, and the output end of the drive mechanism is connected to the bottom mold to drive the bottom mold to move up and down. A limiting mechanism, installed on the base plate, is used to limit the ultrasonic welding head so that the ultrasonic welding head is positioned directly opposite the bottom mold. as well as A clamp, mounted on the base plate, is used to clamp and position the wire harness so that the wire harness is positioned between the ultrasonic welding head and the bottom mold.

2. The ultrasonic inverted welding machine for wire harnesses according to claim 1, characterized in that, The driving mechanism includes a driving part, a fixing component, a guiding component, and an adjusting component. The guiding component is mounted on the frame. The driving part is connected to the fixing component. The fixing component is connected to the bottom mold. The adjusting component is mounted on the frame and cooperates with the guiding component to adjust the vertical position of the bottom mold.

3. An ultrasonic inverted welding machine for wire harnesses according to claim 2, characterized in that, The fixing component includes a floating joint, a fixed base, and a pressure sensor. The driving part is connected to the floating joint, the floating joint is connected to the pressure sensor, the pressure sensor is connected to the fixed base, and a bottom mold is installed below the fixed base.

4. An ultrasonic inverted welding machine for wire harnesses according to claim 3, characterized in that, The guide assembly includes a slide rail and a slider, the slide rail being fixed to the frame and the slider slidingly engaging with the slide rail.

5. An ultrasonic inverted welding machine for wire harnesses according to claim 4, characterized in that, The adjustment assembly includes a rotating shaft, a helical gear, a screw, and a nut. The rotating shaft is connected to the helical gear, the helical gear is connected to the screw, and the screw is connected to the nut. A limiting block is connected to the slider, and the limiting block cooperates with the nut to adjust the welding position of the bottom mold in the vertical direction.

6. An ultrasonic inverted welding machine for wire harnesses according to claim 4, characterized in that, A hydraulic damper is installed on the frame. When the slider rises, the hydraulic damper contacts and engages with the slider to buffer it.

7. An ultrasonic inverted welding machine for wire harnesses according to claim 1, characterized in that, The base plate is provided with an adjustment plate, the adjustment plate is provided with a base, the amplitude modulator is connected to a clamp, and the clamp is installed on the base; the adjustment plate cooperates with the base plate to adjust the position of the ultrasonic welding head in the left-right direction.

8. An ultrasonic inverted welding machine for wire harnesses according to claim 7, characterized in that, The base is provided with a stop block, a pressure block, a fixing block and an adjusting bolt. An ultrasonic welding head is installed between the pressure block and the stop block. The adjusting bolt passes through the fixing block and abuts against the ultrasonic welding head to adjust the position of the ultrasonic welding head in the front-back direction.

9. An ultrasonic inverted welding machine for wire harnesses according to claim 1, characterized in that, The clamp includes a wire groove, a wire stop, and a clamping part. The wire groove holds a wire harness, the wire stop is used to abut the two ends of the wire harness, and the clamping part is used to clamp the side wall of the wire harness.

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