Multi-axis linkage welding machine

Abstract

The utility model relates to the field of welding machines, in particular to a multi-axis linkage welding machine, and aims to solve the technical problems that when a welding machine in the prior art is used for replacing a weldment, the weldment needs to be clamped and replaced at the bottom of a welding head, and certain danger is caused to operators. The effective driving length of the Y-axis driving mechanisms is equal to the length of one side of the machine base and parallel to the length of one side of the machine base, the length of the Y-axis driving mechanisms is not smaller than three times of the length of the clamps, each set of Y-axis driving mechanisms can drive the two clamps to move synchronously, and when one clamp is located on the lower portion of the laser welding head, the other clamp is located on one side of the laser welding head. Two groups of Y-axis driving mechanisms and clamps are arranged, when one group of Y-axis driving mechanism participates in operation, the other group of Y-axis driving mechanism is static, and the clamps are positioned on one side of a laser welding head, at the moment, an operator can clamp, disassemble and clean a welding seam, and gapless operation is realized while safety is ensured.

Description

Technical Field

[0001] The utility model relates to the field of welding machines, in particular to a multi-axis linkage welding machine. Background Art

[0002] A multi-axis linkage welding machine is a highly automated welding device. It can achieve precise tracking of complex welding paths and welding operations through motion control of multiple degrees of freedom, and has the following technical characteristics and application advantages:

[0003] 1. Improve production efficiency: The multi-axis linkage welding machine can achieve rapid tool change, adapt to changing welding requirements, reduce manual operations, shorten the production cycle, and improve the overall automation level;

[0004] 2. Save labor costs: Through automated welding, the dependence on skilled welders is reduced, labor costs are lowered, and at the same time, the continuity and stability of production are improved;

[0005] 3. Improve welding quality: The multi-axis linkage welding machine can perform high-precision welding and reduce defects such as welding deformation and cracks;

[0006] 4. Suitable for complex welding tasks: Due to its multi-axis linkage characteristics, this welding machine can handle workpieces with complex shapes and limited space, and achieve multi-angle and multi-directional welding operations.

[0007] When replacing the welded part of the welding machine in the prior art, it is necessary to clamp and replace the welded part at the bottom of the welding head, which is somewhat dangerous for the operator. The utility model solves the above problems. Summary of the Utility Model

[0008] In order to solve the technical problem that when replacing the welded part of the welding machine in the prior art, it is necessary to clamp and replace the welded part at the bottom of the welding head, which is somewhat dangerous for the operator, the utility model further provides a multi-axis linkage welding machine.

[0009] A multi-axis linkage welding machine includes: a machine base. In the middle of the upper surface of the machine base, a gantry is connected. At the top of the gantry, an X-axis drive mechanism is connected. The X-axis drive mechanism can drive the Z-axis drive mechanism to displace along the X-axis direction. The Z-axis drive mechanism can drive the laser welding head to displace along the Z-axis direction. In the middle of the upper surface of the machine base, a Y-axis drive mechanism is connected. The Y-axis drive mechanism can drive the fixture to displace along the Y-axis direction. The Y-axis drive mechanism is located below the gantry and is perpendicular to the gantry. The effective driving length of the Y-axis drive mechanism is equal to the length of one side of the machine base and is parallel in direction. The length of the Y-axis drive mechanism is not less than 3 times the length of the fixture. There are two sets of the Y-axis drive mechanism and the fixture respectively. Each set of the Y-axis drive mechanism can drive two fixtures to displace synchronously. When one fixture is located below the laser welding head, the other fixture is located on one side of the laser welding head.

[0010] Further, the X-axis driving mechanism, Z-axis driving mechanism, and Y-axis driving mechanism are all driven by the cooperation of a motor and a lead screw.

[0011] Further, the fixture includes a fixture platform. Positioning shafts are respectively connected to the middle parts of the opposite sides of the fixture platform. Two sleeves are rotatably connected to each positioning shaft. The two sleeves are respectively connected to two clamping plates. The outer surface of the clamping plate is hinged to the telescopic end of a cylinder, and the fixed end of the cylinder is hinged to the fixture platform.

[0012] Further, chip removal holes are provided on the bottom surface of the fixture and the upper surface of the machine base. A chip cleaning mechanism is provided inside the machine base. The chip cleaning mechanism includes an inclined guiding plate connected to the inner wall of the machine base. A spiral blade is tangent to the inner surface at the lowest point of the inclined guiding plate. Through holes are provided on both side walls of the machine base. The spiral blade passes through the two through holes, and the spiral blade is connected to a chip cleaning shaft. The chip cleaning shaft is rotatably connected to a bearing seat.

[0013] Advantages of the present utility model:

[0014] There are two groups of Y-axis driving mechanisms and fixtures. When one group of Y-axis driving mechanisms is participating in the operation, the other group of Y-axis driving mechanisms is stationary and the fixture is located on one side of the laser welding head. At this time, the operator can perform loading, unloading, and cleaning of the weld seam, achieving gapless operation while ensuring safety and improving the welding efficiency;

[0015] Each group of Y-axis driving mechanisms drives the displacement of two fixtures simultaneously. Even if one fixture is damaged and cannot be loaded, it can still be loaded onto the other fixture, without delaying the working hours;

[0016] The fixture is clamped tightly through the cooperation of four clamping plates and a cylinder, and can stably clamp irregular-shaped parts;

[0017] The removed welding slag and dust chips fall onto the inclined guiding plate through the pores and are guided and discharged by the spiral blade, ensuring the cleanliness of the tabletop. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present utility model Figure 1 ;

[0019] Figure 2 is a schematic structural diagram of the present utility model Figure 2 ;

[0020] Figure 3 is a schematic cross-sectional structural diagram of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the present utility model Figure 3 .

[0022] In the figure: machine base 1; gantry 2; X-axis driving mechanism 3; Z-axis driving mechanism 4; laser welding head 5; Y-axis driving mechanism 6; fixture 7; fixture platform 71; positioning shaft 72; sleeve 73; clamping plate 74; cylinder 75; chip clearing mechanism 8; inclined plane guide plate 81; spiral blade 82; through hole 83; chip clearing shaft 84; bearing seat 85. Detailed implementation manner

[0023] 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 protection scope of the present invention.

[0024] The so-called rotational connection in this device means that by baking the bearing on the shaft, a spring retaining ring groove is provided on the shaft or the shaft hole, and the axial fixation of the bearing is achieved by clamping the elastic retaining ring in the retaining ring groove to realize rotation; the so-called hinged connection means a connection method that is movable on connecting parts such as hinges, pin shafts and short shafts.

[0025] The following will describe the present invention in detail with reference to the accompanying drawings. Embodiment

[0026] The following combines the attached Figures 1-4 This embodiment will illustrate a multi-axis linkage welding machine, including: a machine base 1, a gantry 2 is connected to the middle of the upper surface of the machine base 1, an X-axis driving mechanism 3 is connected to the top of the gantry 2, the X-axis driving mechanism 3 can drive the Z-axis driving mechanism 4 to displace along the X-axis direction, the Z-axis driving mechanism 4 can drive the laser welding head 5 to displace along the Z-axis direction, a Y-axis driving mechanism 6 is connected to the middle of the upper surface of the machine base 1, the Y-axis driving mechanism 6 can drive the fixture 7 to displace along the Y-axis direction, the Y-axis driving mechanism 6 is located below the gantry 2 and is perpendicular to the gantry 2, the length of the Y-axis driving mechanism 6 is parallel and equal to the length of one side of the machine base 1, the length of the Y-axis driving mechanism 6 is not less than 4 times the length of the fixture, there are two sets of the Y-axis driving mechanism 6 and the fixture 7 respectively, each set of the Y-axis driving mechanism 6 can drive two fixtures 7 to displace synchronously, when one fixture 7 is located below the laser welding head 5, the other fixture 7 is located on one side of the laser welding head 5;

[0027] During use, the two groups of jigs 7 simultaneously hold the workpieces to be welded. Through the control system, the X-axis drive mechanism 3, Z-axis drive mechanism 4, and Y-axis drive mechanism 6 are controlled to move in three-axis linkage, so that the laser welding head 5 welds the clamped workpieces. When the welding of the workpieces on one group of Y-axis drive mechanisms 6 is completed, the two groups of Y-axis drive mechanisms 6 drive the two groups of jigs 7 to approach and move away from the laser welding head 5 respectively. The X-axis drive mechanism 3 drives the laser welding head 5 to displace to the upper part of the approaching jig 7 to continue welding, while the remote jig 7 is located on one side of the gantry 2. There is no safety hazard for the operator to load, unload, and clean the weld seam. In this way, seamless welding is achieved through cycles. When a jig 7 on the Y-axis drive mechanism 6 fails, in order not to affect the accuracy and delay the maintenance time, another jig on the Y-axis drive mechanism 6 is enabled to displace to the lower part of the laser welding head 5. Since the length of the Y-axis drive mechanism 6 is not less than three times the length of the jig 7 and the gantry 2 is located in the middle, there is sufficient space for both jigs 7 to displace and be safely loaded, meeting the processing requirements.

[0028] The X-axis drive mechanism 3, Z-axis drive mechanism 4, and Y-axis drive mechanism 6 are all driven by the cooperation of a motor and a lead screw;

[0029] The connection of the lead screw is stable, reliable, and has high precision.

[0030] The jig 7 includes a jig platform 71. Positioning shafts 72 are respectively connected to the middle parts of the opposite sides of the jig platform 71. Two sleeves 73 are rotatably connected to each positioning shaft 72. The two sleeves 73 are respectively connected to two clamping plates 74. The outer surface of the clamping plate 74 is hinged to the telescopic end of a cylinder 75, and the fixed end of the cylinder 75 is hinged to the jig platform 71;

[0031] During clamping, the workpiece is placed on the jig platform 71, and the telescopic ends of the four cylinders 75 are respectively controlled to extend. The telescopic ends of the cylinders 75 drive the clamping plates 74 and sleeves 73 to rotate around the positioning shafts 72, and the four clamping plates 74 cooperate to clamp the workpiece, capable of stably clamping the special-shaped parts.

[0032] Chip removal holes are respectively provided on the bottom surface of the jig 7 and the upper surface of the machine base 1. A chip cleaning mechanism 8 is provided inside the machine base 1. The chip cleaning mechanism 8 includes an inclined surface guiding plate 81, which is connected to the inner wall of the machine base 1. A spiral blade 82 is tangent to the inner surface at the lowest point of the inclined surface guiding plate 81. Through holes 83 are provided on both side walls of the machine base 1. The spiral blade 82 passes through the two through holes 83, and the spiral blade 82 is connected to a chip cleaning shaft 84. The chip cleaning shaft 84 is rotatably connected to a bearing seat 85;

[0033] After cleaning, the debris and welding slag on the surface of the workpiece fall onto the inclined surface guiding plate 81 through the chip removal holes on the bottom surface of the jig 7 and the upper surface of the machine base 1, and slide to the lowest point of the inclined surface guiding plate 81. Since the spiral blade 82 is tangent to the inner surface at the lowest point of the inclined surface guiding plate 81, the power drives the chip cleaning shaft 84 to rotate, and the chip cleaning shaft 84 drives the spiral blade 82 to rotate, discharging the debris and welding slag inside the lowest point of the guiding plate 81 through the through holes 83 to complete the impurity removal.

Claims

1. A multi-axis linkage welding machine, comprising: Base (1), a gantry (2) is connected to the middle of the upper surface of the base (1), an X-axis drive mechanism (3) is connected to the top of the gantry (2), the X-axis drive mechanism (3) can drive the Z-axis drive mechanism (4) to displace along the X-axis direction, the Z-axis drive mechanism (4) can drive the laser welding head (5) to displace along the Z-axis direction, a Y-axis drive mechanism (6) is connected to the middle of the upper surface of the base (1), and the Y-axis drive mechanism (6) can drive the fixture (7) to displace along the Y-axis direction. It is characterized in that: the Y-axis drive mechanism (6) is located at the lower part of the gantry (2) and is perpendicularly arranged to the gantry (2), the effective driving length of the Y-axis drive mechanism (6) is equal to the length of one side of the base (1) and the direction is parallel, the length of the Y-axis drive mechanism (6) is not less than 3 times the length of the fixture, there are two groups of the Y-axis drive mechanism (6) and the fixture (7) respectively, and each group of the Y-axis drive mechanism (6) can drive two fixtures (7) to displace synchronously. When one fixture (7) is located below the laser welding head (5), the other fixture (7) is located on one side of the laser welding head (5).

2. The multi-axis linkage welding machine according to claim 1, characterized in that: The X-axis drive mechanism (3), the Z-axis drive mechanism (4), and the Y-axis drive mechanism (6) are all driven by the cooperation of a motor and a lead screw.

3. A multi-axis linkage welding machine according to claim 1, characterized in that: The fixture (7) includes a fixture platform (71), positioning shafts (72) are respectively connected to the middle parts of the opposite two sides of the fixture platform (71), two sleeves (73) are rotatably connected to each positioning shaft (72), the two sleeves (73) are respectively connected to two clamping plates (74), the telescopic end of a cylinder (75) is hinged to the outer surface of the clamping plate (74), and the fixed end of the cylinder (75) is hinged to the fixture platform (71).

4. A multi-axis linkage welding machine according to claim 1 or 3, characterized in that: Chip removal holes are opened on the bottom surface of the fixture (7) and the upper surface of the base (1), and a chip cleaning mechanism (8) is arranged inside the base (1). The chip cleaning mechanism (8) includes an inclined surface guiding plate (81), the inclined surface guiding plate (81) is connected to the inner wall of the base (1), a spiral blade (82) is tangent to the inner surface at the lowest point of the inclined surface guiding plate (81), through holes (83) are opened on both side walls of the base (1), the spiral blade (82) passes through the two through holes (83), the spiral blade (82) is connected to a chip cleaning shaft (84), and the chip cleaning shaft (84) is rotatably connected inside a bearing seat (85).

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