Rotary robot ultrasonic welding equipment

Abstract

The invention relates to rotary robot ultrasonic welding equipment. The rotary robot ultrasonic welding equipment comprises a welding center; the welding center is provided with a mechanical arm and a rotary table; a welding head is arranged on the mechanical arm, and double stations are arranged on the rotary table. Each station is provided with a clamp tool base. A locking mechanism is arranged on the outer side of each station; the locking mechanism is in contact with the clamp tool seat; and each station and the clamp tool seat are provided with an electricity taking plug. A locking mechanism is adopted to lock and fix the clamp tool seat on each station, so that the clamp tool seat is prevented from deviating and shaking in the rotating process; meanwhile, the clamp tool base and the rotary table can be detached and separated, and replacement, overhauling and the like are convenient.

Description

Technical Field

[0001] The invention relates to an ultrasonic welding device, in particular to a rotary robot ultrasonic welding device, belonging to the technical field of welding equipment. Background Art

[0002] In the existing robot welding equipment, in order to improve the welding efficiency, the workpiece is usually loaded in a double-station manner, and is transferred to the welding station for welding in sequence by rotating. During the rotation process, if the fixture seat is not fixed to the turntable, it is easy to shake; and if a fixed connection is used, it is not conducive to the maintenance and replacement of the fixture. Secondly, due to the irregular contour of the rear guard assembly workpiece, it is difficult to achieve a stable fixing effect by using conventional methods to support and fix it unless the number of fixtures is extremely large, because the traditional fixture support is difficult to adapt to the outer contour of the rear guard assembly with variable curvature, and the contact surface fit is not high. At the same time, the existing fixture has a single clamping method, using a large number of pneumatic or electric mechanical clamps to clamp, covering a large number of welding point areas; finally, the existing fixture has a messy line distribution and a cumbersome wiring process. Therefore, further improvement is needed. Summary of the invention

[0003] In view of this, the present invention provides a rotary robot ultrasonic welding device to overcome the defects in the prior art, which can effectively fix the fixed tooling and facilitate disassembly, have a reasonable support method to improve stability, and have multiple clamping methods to ensure stability and reduce the coverage area.

[0004] A rotary robot ultrasonic welding device comprises a welding center; the welding center has a mechanical arm and a turntable; the mechanical arm is provided with a welding head, and the turntable is provided with a double workstation; each of the workstations is provided with a fixture work seat; a locking mechanism is provided on the outer side of each workstation; the locking mechanism is in contact with the fixture work seat; each of the workstations and the fixture work seat is provided with a power plug; the fixture work seat is provided with a first pad block group and a second pad block group; side brackets are provided on both sides of the fixture work seat; a third pad block group is provided on the side bracket; the fixture work seat is provided with a first fixture group and a second fixture group; the fixture work seat is provided with a vacuum adsorption mechanism.

[0005] Furthermore, pads are provided on both side edges of the fixture workbench; a mounting frame is provided on the side of the turntable; the locking mechanism includes a locking cylinder and an articulated seat; the articulated seat is arranged in the mounting frame; the locking cylinder is arranged at the bottom of the articulated seat; and a through hole is opened in the mounting frame relative to the piston of the locking cylinder.

[0006] Furthermore, the locking mechanism also includes a locking rod; a rotating connection hole is opened in the hinge seat; a rotating shaft is arranged on one side of the locking rod; the rotating shaft is connected to the rotating connection hole; one end of the locking rod is rotatably connected to an H-shaped rotating block; the other end of the H-shaped rotating block relative to the locking rod is hinged to the piston of the locking cylinder; and the locking rod is in contact with the pad.

[0007] Furthermore, the power plug includes a male aviation plug and a female aviation socket; the male aviation plug and the female aviation socket are respectively arranged at relative positions of the fixture work seat and the work station; the fixture work seat is provided with a vertical plate for installing the male aviation plug; the work station is provided with a guide rod cylinder; the guide rod cylinder is provided with a panel; the female aviation socket is arranged on the panel.

[0008] Furthermore, a trapezoidal seat is provided on the turntable; a partition plate for separating two workstations is connected to the trapezoidal seat; a handle is provided on the fixture work seat; the first pad block group includes a plane pad and an inclined pad; there is one plane pad; there are several inclined pads, which are symmetrically arranged on both sides of the plane pad; the inclined pads on the two ends in the direction from the plane pad have gradually decreasing inclination angles; the inclined pads and the plane pads both have ribs; the first fixture group is arranged on the side of the inclined pad close to the edge of the fixture work seat; the first fixture group is driven by a rotary cylinder.

[0009] Furthermore, the second pad block group includes two plug-in pad blocks; the plug-in pad blocks are arranged relative to the assembly holes of the workpiece; the second pad block group also includes a first adsorption pad block; the third pad block group includes a supporting pad block and a second adsorption pad block.

[0010] Furthermore, the vacuum adsorption mechanism includes a vacuum generator and an adsorption head arranged on the fixture workpiece; the adsorption head is arranged on the vacuum adsorption head of the first adsorption pad and the second adsorption pad; the vacuum adsorption head is connected to the vacuum generator.

[0011] Furthermore, the vacuum adsorption mechanism also includes a vacuum adsorption nozzle on the side of the inclined pad; the vacuum adsorption nozzle is connected to the vacuum generator; the second clamp assembly is arranged on the inner side of the side bracket; and the second clamp assembly is driven by a clamping cylinder.

[0012] The present invention has the following beneficial effects: a locking mechanism is used to lock and fix the fixture work seat on each work station to prevent deviation and shaking during the rotation process; at the same time, the fixture work seat can be disassembled and separated from the turntable to facilitate replacement and maintenance;

[0013] Meanwhile, the power-taking plug is driven by a guide rod cylinder to achieve automatic insertion and extraction, avoiding problems such as entanglement caused by messy wiring on the fixture tooling seat and difficult wiring, with a high degree of integration; while the first pad group, the second pad group and the third pad group can highly fit the outer contour of the rear bumper assembly, and during the support process, problems such as shaking and dislocation are not likely to occur.

[0014] Finally, vacuum suction heads (nozzles) are provided inside or outside the third pad group and the first pad group. Under the action of negative pressure, the placement of the rear bumper assembly workpiece is more stable. By using this method, the number of pneumatic or electric fixtures can be reduced, and the coverage of the workpiece surface can be minimized as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic assembly structure diagram of the present invention.

[0016] Figure 2 It is a schematic structure diagram of the turntable and the fixture tooling seat.

[0017] Figure 3 It is a schematic structure diagram of the power-taking plug.

[0018] Figure 4 It is a schematic structure diagram of the fixture tooling seat.

[0019] Figure 5 It is a schematic structure diagram of the vacuum suction nozzle.

[0020] Figure 6 It is a schematic structure diagram of the locking mechanism.

[0021] In the figure: 1 is the welding center, 2 is the robotic arm, 3 is the turntable, 31 is the mounting bracket, 4 is the welding head, 5 is the fixture tooling seat, 51 is the lining block, 6 is the first pad group, 7 is the second pad group, 8 is the side bracket, 9 is the third pad group, 10 is the locking cylinder, 11 is the hinge seat, 12 is the locking rod, 121 is the rotating shaft, 13 is the H-shaped rotating block, 14 is the male end aviation plug, 15 is the female end aviation socket, 16 is the vertical plate, 17 is the guide rod cylinder, 18 is the panel, 19 is the partition plate, 20 is the handle, 21 is the flat pad, 22 is the inclined pad, 23 is the plug-in pad, 24 is the first adsorption pad, 25 is the supporting pad, 26 is the second adsorption pad, 27 is the vacuum generator, 28 is the vacuum suction head, 29 is the vacuum suction nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0023] The terms used herein, including technical and scientific terms, have the same meaning as those commonly understood by those of ordinary skill in the art, unless the term is otherwise defined. It should be understood that terms defined in commonly used dictionaries have the same meaning as those in the prior art.

[0024] See Figure 1 - Figure 6

[0025] A rotary robot ultrasonic welding device includes a welding center 1; the welding center has a robotic arm 2 and a turntable 3; a welding head 4 is arranged on the robotic arm 2, and a double-station is arranged on the turntable 3; a fixture tooling seat 5 is arranged on each station; a locking mechanism is arranged outside each station; the locking mechanism contacts the fixture tooling seat 5; a power-taking plug is arranged on each station and the fixture tooling seat 5; a first pad group 6 and a second pad group 7 are arranged on the fixture tooling seat 5; side brackets 8 are arranged on both sides of the fixture tooling seat 5; a third pad group 9 is arranged on the side brackets 8; a first fixture group and a second fixture group are arranged on the fixture tooling seat 5; a vacuum adsorption mechanism is arranged on the fixture tooling seat 5.

[0026] Furthermore, lining blocks 51 are arranged on the two side edges of the fixture tooling seat 5; an installation frame 31 is arranged on the side part of the turntable 3; the locking mechanism includes a locking cylinder 10 and a hinge seat 11; the hinge seat 11 is arranged in the installation frame 31; the locking cylinder 10 is arranged at the bottom of the hinge seat 11; a through hole is opened in the installation frame 31 opposite to the piston of the locking cylinder 10.

[0027] Furthermore, the locking mechanism further includes a locking rod 12; a rotating connection hole is opened in the hinge seat 11; a rotating shaft 121 is arranged on one side of the locking rod 12; the rotating shaft 121 is connected in the rotating connection hole; one end of the locking rod 12 is rotatably connected with an H-shaped rotating block 13; the other end of the H-shaped rotating block 13 relative to the locking rod 12 is hinged to the piston of the locking cylinder 10; the locking rod 12 contacts the lining block 51.

[0028] Specifically, starting the locking cylinder 10 can push the H-shaped rotating block 13 upward to make it flip over. After it flips over, the locking rod 12 will rotate downward and contact with the lining block 51, thereby pressing and holding the fixture fixture seat 5.

[0029] Furthermore, the power plug includes a male aviation plug 14 and a female aviation socket 15; the male aviation plug 14 and the female aviation socket 15 are respectively arranged at relative positions of the fixture work seat 5 and the work station; the fixture work seat 5 is provided with a vertical plate 16 for installing the male aviation plug 14; the work station is provided with a guide rod cylinder 17; the guide rod cylinder 17 is provided with a panel 18; the female aviation socket 15 is arranged on the panel.

[0030] Specifically, the female aviation socket 15 is controlled by the guide rod cylinder 17 to drive it to move horizontally to achieve connection or separation with the male aviation plug 14.

[0031] Furthermore, a trapezoidal seat is provided on the turntable; a partition plate 19 for separating two workstations is connected to the trapezoidal seat; a handle 20 is provided on the fixture work seat 5; the first pad block group includes a plane pad 21 and an inclined pad 22; the plane pad 21 has one; the inclined pad 22 has several, and are symmetrically arranged on both sides of the plane pad 21; the inclined pads 22 in the direction from both ends to the plane pad 21 have a gradually decreasing inclination angle; the inclined pad 22 and the plane pad 21 both have a rib; the first fixture group is arranged on the side of the inclined pad 22 close to the edge of the fixture work seat 5; the first fixture group is driven by a rotary cylinder.

[0032] Specifically, the inclined pad 22 is used to adapt to the outer contour curvature of the front end face of the workpiece, and multiple inclined pads 22 can fit the front end face to form a direction adapted to it; the plane pad 21 is centrally arranged to support the middle position of the workpiece. Both the plane pad 21 and the inclined pad 22 have a rib to prevent the workpiece from moving laterally.

[0033] Furthermore, the second pad block group includes two plug-in pad blocks 23; the plug-in pad blocks 23 are arranged relative to the assembly holes of the workpiece; the second pad block group also includes a first adsorption pad block 24; and the third pad block group includes a supporting pad block 25 and a second adsorption pad block 26.

[0034] Furthermore, the vacuum adsorption mechanism includes a vacuum generator 27 and an adsorption head arranged on the fixture workpiece; the adsorption head is arranged on a vacuum adsorption head 28 of the first adsorption pad and the second adsorption pad; the vacuum adsorption head 28 is connected to the vacuum generator.

[0035] Specifically, the vacuum suction head is located between the first suction pad 24 and the second suction pad 26 at a relatively high position to suck the corresponding position of the workpiece.

[0036] Furthermore, the vacuum suction mechanism further includes a vacuum suction nozzle 29 on the side of the inclined pad 22; the vacuum suction nozzle 29 is connected to a vacuum generator; the second fixture assembly is arranged inside the side bracket; and the second fixture assembly is driven by a clamping cylinder.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A rotary robot ultrasonic welding device, comprising a welding center; the welding center has a robotic arm and a turntable; a welding head is arranged on the robotic arm, and it is characterized in that: The turntable is provided with a double station; a fixture tooling seat is arranged on each station; a locking mechanism is arranged outside each station; the locking mechanism contacts the fixture tooling seat; a power-taking plug is arranged on each station and the fixture tooling seat; a first pad group and a second pad group are arranged on the fixture tooling seat; side brackets are arranged on both sides of the fixture tooling seat; a third pad group is arranged on the side brackets; a first fixture group and a second fixture group are arranged on the fixture tooling seat; a vacuum adsorption mechanism is arranged on the fixture tooling seat.

2. The rotary robot ultrasonic welding equipment according to claim 1, characterized in that: Lining blocks are arranged on the two side edges of the fixture tooling seat; an installation frame is arranged on the side part of the turntable; the locking mechanism includes a locking cylinder and a hinge seat; the hinge seat is arranged in the installation frame; the locking cylinder is arranged at the bottom of the hinge seat; a through hole is arranged in the installation frame opposite to the piston of the locking cylinder.

3. The rotary robot ultrasonic welding device according to claim 2, characterized in that: The locking mechanism further includes a locking rod; a rotation connection hole is arranged in the hinge seat; a rotating shaft is arranged on one side of the locking rod; the rotating shaft is connected in the rotation connection hole; an H-shaped rotating block is rotatably connected to one end of the locking rod; the H-shaped rotating block opposite to the other end of the locking rod is hinged to the piston of the locking cylinder; the locking rod contacts the lining block.

4. The rotary robot ultrasonic welding equipment according to claim 3, wherein: The power-taking plug includes a male end aviation plug and a female end aviation socket; the male end aviation plug and the female end aviation socket are respectively arranged at the relative positions of the fixture tooling seat and the station; a vertical plate for installing the male end aviation plug is arranged on the fixture tooling seat; a guide rod cylinder is arranged on the station; a panel is arranged on the guide rod cylinder; the female end aviation socket is arranged on the panel.

5. The rotary robot ultrasonic welding device according to claim 4, wherein: A trapezoidal seat is arranged on the turntable; a partition plate for separating the two stations is connected to the trapezoidal seat; a handle is arranged on the fixture tooling seat; the first pad group includes a flat pad and inclined pads; there is one flat pad; there are several inclined pads, which are symmetrically arranged on both sides of the flat pad; the inclined angle of the inclined pads gradually decreases in the direction from both ends to the flat pad; the inclined pads and the flat pad both have a rib; the first fixture group is arranged on the side of the inclined pad close to the edge of the fixture tooling seat; the first fixture group is driven by a rotary cylinder.

6. The rotary robot ultrasonic welding device according to claim 5, characterized in that: The second pad group includes two plug-in pads; the plug-in pads are arranged opposite to the assembly holes of the workpiece; the second pad group further includes a first adsorption pad; the third pad group includes a supporting pad and a second adsorption pad.

7. The rotary robot ultrasonic welding equipment according to claim 6, characterized in that: The vacuum adsorption mechanism includes a vacuum generator and an adsorption head arranged on the fixture tooling seat; the adsorption head is the vacuum adsorption head of the first adsorption pad and the second adsorption pad; the vacuum adsorption head is connected to the vacuum generator.

8. A rotary robot ultrasonic welding device according to claim 7, characterized in that: The vacuum adsorption mechanism further includes a vacuum adsorption nozzle on the side of the inclined pad; the vacuum adsorption nozzle is connected to the vacuum generator; the second fixture assembly is arranged inside the side bracket; the second fixture assembly is driven by a clamping cylinder.

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