Electromechanical automated welding station

Abstract

The utility model discloses electromechanical automation welding workstation, including base, the top rotation of base is provided with lower rotary disc, frame, the upper rotary disc is rotationally arranged on the base, the upper rotary disc is opposite with lower rotary disc, the upper rotary disc bottom is provided with wheel cover concentricity positioning mould, the positioning disc axle position is opened with through -hole, the lower rotary disc axle position is opened with screw hole, after positioning disc coaxial place in the lower rotary disc, the fixed bolt free end passes through through -hole and can lock the positioning disc in screw hole. The utility model discloses through setting lower rotary disc and the up -and-down alignment structure of upper rotary disc, cooperate positioning disc, fixed bolt and wheel cover concentricity positioning mould, have realized the full -process operation of wheel disc, blade and wheel cover in same station complete positioning, clamping, spot welding and rotary welding, avoided the cumulative error of multiple dismounting, improved impeller assembly's concentricity and overall assembly accuracy significantly.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine manufacturing technology, and in particular relates to an electromechanical automated welding workbench. Background Technology

[0002] In the traditional manufacturing process of centrifugal fan impellers, impeller assembly is typically divided into two independent steps: the first step involves indexing and positioning the blades and impeller disc, then spot welding them in place, and finally transferring them to the next workstation; the second step involves concentrically assembling the impeller disc with welded blades and the impeller cover, and then spot welding the impeller cover in place. This process has the following drawbacks: the process is separated, multiple transfers are required, increasing logistics and waiting time, and reducing production efficiency; moreover, the manual operation is labor-intensive: operators need to circle around the workpiece to perform spot welding, resulting in high labor intensity. Utility Model Content

[0003] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0004] This utility model provides an electromechanical automated welding workbench, comprising:

[0005] A base, wherein a lower rotating disk is rotatably mounted on the top of the base;

[0006] The frame has a base that is movably mounted longitudinally at the bottom end of the frame. An upper rotating disk is rotatably mounted on the base. The upper rotating disk and the lower rotating disk are vertically opposite each other. A wheel cover concentric positioning mold is provided at the bottom end of the upper rotating disk. The wheel cover concentric positioning mold is a conical guide head.

[0007] The positioning plate and the fixing bolt are provided. The positioning plate has a through hole at its axial center and the lower rotating plate has a threaded hole at its axial center. After the positioning plate is placed coaxially on the lower rotating plate, the free end of the fixing bolt passes through the through hole and is screwed into the threaded hole to lock the positioning plate.

[0008] As a preferred embodiment of the above technical solution, a hydraulic cylinder is provided on the frame, the output end of the hydraulic cylinder is connected to the base, a bearing assembly is provided inside the base, and the upper rotating disk is coaxially mounted below the base through the bearing assembly.

[0009] As a preferred embodiment of the above technical solution, a hydraulic station connected to the hydraulic cylinder is also included.

[0010] As a preferred embodiment of the above technical solution, the base is provided with a motor that drives the lower rotating disk to rotate, and the output end of the motor is connected to the lower rotating disk.

[0011] The beneficial effects of this utility model are as follows:

[0012] This invention, by setting up an upper and lower alignment structure for the lower and upper rotating disks, and in conjunction with a positioning disk, fixing bolts, and a concentric positioning mold for the wheel cover, enables the entire process of positioning, clamping, spot welding, and rotary welding of the wheel disk, blades, and wheel cover to be completed in the same workstation. This avoids the cumulative errors caused by multiple disassemblies and assemblies, significantly improving the coaxiality and overall assembly accuracy of the impeller assembly. Furthermore, the lower rotating disk can drive the entire impeller assembly to rotate at a uniform speed, allowing operators to complete the full-circumference spot welding operation at a fixed workstation without having to walk around the workpiece, greatly reducing labor intensity and improving operational safety and welding consistency. Attached Figure Description

[0013] Figure 1 The diagram shown is a front view of the workbench in the embodiment.

[0014] Figure 2 The diagram shown is a schematic representation of the wheel in the embodiment (top view).

[0015] Figure 3 The diagram shown is a side view of the workbench in the embodiment.

[0016] Reference numerals: 1. Wheel; 2. Blade; 3. Wheel cover; 10. Base; 20. Frame; 21. Lower rotating disk; 22. Upper rotating disk; 31. Positioning disk; 32. Fixing bolt; 40. Concentric positioning mold for wheel cover; 50. Hydraulic cylinder; 60. Hydraulic station. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] Example

[0019] This machine's automated welding workbench is suitable for assembling and spot welding impellers of fans and centrifugal fans. The impeller includes a disc 1, blades 2, and a cover 3, which are assembled from bottom to top.

[0020] like Figure 2 As shown, Figure 2 The diagram shown is a schematic representation of the wheel in the embodiment (top view).

[0021] One end face of the wheel 1 is a laser marking surface, which is used as a visual reference for indexing and alignment when assembling the blades 2, ensuring that the blades 2 are evenly distributed along the circumference.

[0022] like Figure 1 , Figure 3 As shown, Figure 1 The diagram shown is a front view of the workbench in the embodiment. Figure 3 The diagram shown is a side view of the workbench in the embodiment.

[0023] This device includes:

[0024] The base 10 has a lower rotating disk 21 rotatably mounted on its top.

[0025] The frame 20 has a base that is movably mounted longitudinally at the bottom end of the frame 20. An upper rotating disk 22 is rotatably mounted on the base. The upper rotating disk 22 is vertically opposite to the lower rotating disk 21. A wheel cover concentric positioning mold 40 is mounted at the bottom end of the upper rotating disk 22. The wheel cover concentric positioning mold 40 is a conical guide head.

[0026] The positioning plate 31 and the fixing bolt 32 are provided. The positioning plate 31 has a through hole at the axial center and the lower rotating plate 21 has a threaded hole at the axial center. After the positioning plate 31 is placed coaxially on the lower rotating plate 21, the free end of the fixing bolt 32 passes through the through hole and is screwed into the threaded hole to lock the positioning plate 31.

[0027] Specifically, the positioning plate 31 is an annular pressure plate structure with a through hole at its center, and the lower rotating plate 21 has a corresponding threaded hole in its central area. During assembly, the wheel 1 is placed on the lower rotating plate 21 with the laser marking surface facing upwards. Then, the positioning plate 31 is coaxially sleeved on top of the wheel 1. Next, the free end of the fixing bolt 32 is passed through the through hole of the positioning plate 31 and screwed into the threaded hole of the lower rotating plate 21. By tightening the fixing bolt 32, the positioning plate 31 is pressed tightly, thereby firmly fixing the wheel 1 to the lower rotating plate 21 and preventing it from shifting during blade assembly.

[0028] Specifically, the outer diameter of the wheel cover concentric positioning mold 40 is slightly smaller than the inner diameter of the wheel cover 3. During the descent of the upper rotating disk 22, the conical guide head is inserted into the inner hole of the wheel cover 3. Using its inclined surface guidance, it automatically corrects the installation deviation of the wheel cover 3 and achieves centering. After complete insertion, the bottom surface of the upper rotating disk 22 continues to descend, completing the overall clamping.

[0029] Specifically, a bearing assembly is installed inside the base, and the upper rotating disk 22 is coaxially mounted below the base through this bearing assembly, ensuring that it can rotate freely when driven.

[0030] A hydraulic cylinder 50 is installed on the frame 20. The output end of the hydraulic cylinder 50 is connected to the base. The hydraulic cylinder 50 drives the base and the upper rotating disk 22 to move longitudinally.

[0031] It also includes a hydraulic station 60 connected to the hydraulic cylinder 50. The hydraulic station 60 is used to control the supply and pressure regulation of hydraulic oil to ensure that the upper rotating plate 22 is pressed down evenly, avoids uneven load, and effectively reduces impeller deformation during the welding process.

[0032] The base 10 is equipped with a motor that drives the lower rotating disk 21 to rotate. The motor is connected to the lower rotating disk 21 through a reducer and a gear transmission pair. It is used to drive the lower rotating disk 21 to rotate at a constant speed around its central axis. After the wheel cover 3 is pressed, the motor is started to drive the entire impeller assembly and the upper rotating disk 22 to rotate. The operator can complete the full circumference spot welding operation at a fixed work position without having to go around, which significantly reduces the labor intensity.

[0033] The welding operation is as follows:

[0034] First, place the positioning disk 31 coaxially above the wheel disk 1. Use the fixing bolt 32 to pass through the through hole of the center of the positioning disk 31 from top to bottom and screw it into the threaded hole of the center of the lower rotating disk 21 to firmly press the wheel disk 1 onto the lower rotating disk 21 to prevent it from shifting during subsequent operations.

[0035] Next, according to the laser marking lines on the wheel 1, align the blades 2 in the circumferential direction and use a square or special tooling to correct the perpendicularity of each blade 2 to ensure that it is perpendicular to the surface of the wheel 2. Spot weld and fix the blades 2 at the connection between the blades 2 and the wheel 1 to complete the indexing assembly of all blades 2.

[0036] Then, the wheel cover 3 is inserted from above into the assembly with the blades 2 already spot-welded, and the position is initially aligned. The upper rotating disk 22 is then slowly lowered. The wheel cover concentric positioning mold 40 (conical guide head) at the bottom of the upper rotating disk 22 first contacts the edge of the inner hole of the wheel cover 3. Under the action of the guide slope, the offset is automatically corrected, so as to achieve precise concentric alignment between the wheel cover 3 and the wheel disk 1.

[0037] The upper rotating disk 22 continues to descend until its bottom surface completely presses against the upper surface of the wheel cover 3. Then, the motor is started to drive the lower rotating disk 21 to rotate. The workpiece drives the upper rotating disk 22 to rotate synchronously, so that the whole rotates at a uniform speed. The operator performs full-circumference spot welding on the connection points in a fixed position.

[0038] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An electromechanical automated welding workbench, characterized in that, include: A base (10) is provided with a lower rotating disk (21) rotatably mounted on its top; A frame (20) is provided with a base at the bottom end of the frame (20) along the longitudinal direction. An upper rotating disk (22) is rotatably provided on the base. The upper rotating disk (22) is vertically opposite to the lower rotating disk (21). A wheel cover concentric positioning mold (40) is provided at the bottom end of the upper rotating disk (22). The wheel cover concentric positioning mold (40) is a conical guide head. The positioning disk (31) and the fixing bolt (32) are provided. The positioning disk (31) has a through hole at the axial position and the lower rotating disk (21) has a threaded hole at the axial position. After the positioning disk (31) is placed coaxially on the lower rotating disk (21), the free end of the fixing bolt (32) passes through the through hole and is screwed into the threaded hole to lock the positioning disk (31).

2. The electromechanical automated welding workbench according to claim 1, characterized in that, A hydraulic cylinder (50) is provided on the frame (20). The output end of the hydraulic cylinder (50) is connected to the base. A bearing assembly is provided inside the base. The upper rotating disk (22) is coaxially mounted below the base through the bearing assembly.

3. The electromechanical automated welding workbench according to claim 2, characterized in that, It also includes a hydraulic station (60) connected to the hydraulic cylinder (50).

4. The electromechanical automated welding workbench according to claim 1, characterized in that, The base (10) is provided with a motor that drives the lower rotating disk (21) to rotate, and the output end of the motor is connected to the lower rotating disk (21).

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