A welding device for producing vacuum pump impellers

Abstract

The invention discloses a welding device for producing vacuum pump impellers, and relates to the field of vacuum pump impeller welding tools, comprising a base and a fixed seat arranged in the middle of the top surface of the base, the top surface of the base is horizontally slidably provided with a moving seat, one end of the top surface of the moving seat is installed with a linear lifting motor, a three-jaw chuck is installed on the moving plate inside the linear lifting motor, a rotating ring is arranged in a stable arc groove, and a welding mechanism is installed on a U-shaped frame; a directional component is arranged on the top of an electric push cylinder; a driving mechanism is arranged inside an abutment box; the invention facilitates the pre-positioning operation of a plurality of impeller blades at the inclination angle to be welded and the surrounding amplitude of welding around a shaft body through the cooperation of the directional component with the welding mechanism and the rotating disk, so as to avoid the situation that the impeller blades are prone to deviation in the welding angle when a single blade is welded; it is convenient to perform welding operation on the impeller blades during the lateral movement of a plurality of impeller blades, so as to improve the efficiency and accuracy of vacuum pump impellers in production welding.

Description

Technical Field

[0001] The invention relates to the field of vacuum pump impeller welding tools, in particular to a welding device for producing vacuum pump impellers. Background Art

[0002] The water ring vacuum pump is equipped with an eccentrically arranged impeller with fixed blades. The impeller converts mechanical energy into kinetic energy of water through rotation to form a rotating water ring. The incompressible rotating water ring and the eccentrically arranged impeller form an air chamber with a changing volume, which produces a change in pressure to achieve the purpose of vacuum extraction. Due to the advantage of isothermal gas compression, the water ring vacuum pump is widely used in coal mine gas extraction systems as a fluid machine for conveying gas.

[0003] The existing application number is CN202223225941.4, and its name is a welding tool for impeller blades of a water ring vacuum pump, which includes a workbench, a control panel is fixedly installed on the outer surface of the workbench, a movable plate No. 1 is movably installed on the top right side of the workbench, a movable plate No. 2 is movably installed on the top right side of the workbench, a first clamping plate is movably installed on the outer surface of the right side of the movable plate No. 2, and a functional plate is fixedly installed on the top of both the movable plate No. 1 and the movable plate No. 2. The welding tool for impeller blades of a water ring vacuum pump places the impeller between the first clamping plate and the second clamping plate, and then starts the servo motor to drive the threaded rod to rotate, thereby driving the two clamping plates to move relative to each other, and the two clamping plates then drive the movable plate No. 1 and the movable plate No. 2 to move relative to each other, so that the impeller is clamped and fixed by the first clamping plate and the second clamping plate, and then the blade is placed between the two clamping plates;

[0004] Although the above technology solves the problems of how to reduce labor intensity and how to improve welding efficiency, the above technology still has the following problems: since the impeller is formed by welding the blades to the hub, although the blades are positioned by the positioning mechanism, it is still necessary to weld the blades one by one, and the above technology also has the problem that the inclination angle of the blades is easily misaligned due to the abutment of the welding gun during welding, affecting the accuracy of blade welding; and the above technology cannot surround all the blades before welding, and cannot perform synchronous welding operations on multiple blades; and it is not convenient to monitor the position where the cold weld occurs in real time; the above technology still has the problem that the blade welding position accuracy is poor, because the spacing between the blades of the impeller after welding is not equal, resulting in uneven volume changes in the air chamber, seriously affecting the suction stability of the water ring vacuum pump; and even affecting the operating efficiency setting of the water ring vacuum pump, which is prone to major safety accidents; therefore, a welding device for vacuum pump impeller production that can solve the above technical problems is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a welding device for producing a vacuum pump impeller.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a welding device for producing vacuum pump impellers, comprising a base and a fixed seat arranged in the middle of the top surface of the base, the top surface of the base is horizontally slidably provided with an I-shaped moving seat, and a linear lifting motor is installed at one end of the top surface of the moving seat, and a three-jaw chuck for clamping the impeller shaft is installed on the inner moving plate of the linear lifting motor, guide rails are transversely arranged at the front and rear ends of the top of the base, and guide grooves cooperating with the guide rails are transversely opened at the four corners of the bottom surface of the moving seat; a supporting seat is installed on the top of the fixed seat, and stable arc grooves are opened on both sides of the arc groove on the top of the supporting seat, and the stable arc grooves are opened on both sides of the arc groove on the top of the supporting seat. Rotating rings are rotatably provided in the fixed arc grooves, and the outer sides of the two rotating rings are covered with limiting hoops fixedly connected to the supporting seats; a plurality of U-shaped frames are equidistantly provided between the inner ring walls of the rotating rings, and a welding mechanism for impeller production welding is installed on the U-shaped frames; a sliding seat is slidably installed on the top of the movable seat, and an electric push cylinder is installed on the top of the sliding seat, and a directional assembly for blade placement is provided on the top of the electric push cylinder; a guide cavity is opened inside the movable seat, and a guide assembly for automatic resetting of the directional assembly is provided inside the guide cavity; an abutment box is provided at the bottom of the supporting seat, and a driving mechanism for rotating the rotating ring is provided inside the abutment box.

[0007] Preferably, the guide assembly includes a stabilizing rod transversely arranged inside the guide cavity, a return seat sleeved on the stabilizing rod, a return spring sleeved on a rod body on one side of the stabilizing rod, and a connecting plate fixedly connected to the top of the return seat, the return spring is located on one side of the return seat, and a rectangular strip opening is transversely opened on the inner top surface of the guide cavity, and the top end of the connecting plate extends from the rectangular strip opening and is fixedly connected to the bottom surface of the sliding seat; the sliding seat is located on one side of the fixed seat.

[0008] Preferably, the orienting assembly includes a support plate arranged at the top of the telescopic end of the electric push cylinder, a mounting arc groove opened at the top of the support plate and a limiting arc plate arranged at both ends of the mounting arc groove, and a rotating disk for blade directional installation is provided inside the mounting arc groove, and a through opening for the impeller shaft to pass through is opened in the middle of the rotating disk.

[0009] Preferably, a plurality of arcuate through grooves for directional installation of blades are equidistantly provided on the circumference of one side of the rotating disk, and the inner ends of the arcuate through grooves are connected to the inner ends of the through openings; and damping arc plates are provided on the inner walls of the arcuate through grooves.

[0010] Preferably, an installation cavity is opened transversely inside the base, and a linear transverse movement motor for the transverse movement of the moving seat is arranged inside the installation cavity, one side of the bottom of the moving seat is fixedly connected to the moving platform of the linear transverse movement motor, and a strip opening is opened transversely on the top of the base for the moving platform of the linear transverse movement motor to extend out.

[0011] Preferably, the driving mechanism includes a rotating shaft inside a rotating abutment box, a driving gear sleeved on both ends of the rotating shaft and an outer gear ring fixedly sleeved on the outer ring wall of the rotating ring. A connecting port is provided on the bottom surface of the supporting seat, the driving gear meshes with the outer gear ring for transmission, and a servo motor for driving the rotating shaft is provided on the outside of the abutment box.

[0012] Preferably, the welding mechanism includes a circular hole opened at the bottom of the U-shaped frame, an electric telescopic rod vertically arranged on the U-shaped frame, a lifting plate installed at the bottom of the U-shaped frame and an automatic robotic arm arranged at the bottom of the lifting plate, and the cantilever end of the automatic robotic arm is provided with a welding gun for blade welding; the telescopic end of the electric telescopic rod extends from the circular hole and is fixedly connected to the top of the lifting plate.

[0013] Preferably, guide rods are vertically fixed on both sides of the top of the lifting plate, cylindrical holes are vertically opened on both sides of the bottom of the U-shaped frame to cooperate with the guide rods, and the guide rods are movably inserted into the cylindrical holes; cameras for welding point identification are installed on both sides of the bottom of the lifting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention facilitates the pre-positioning of multiple blades at the inclination angle to be welded and the surrounding amplitude of welding around the shaft body when welding the impeller shaft and the blades through the cooperation of the directional component with the welding mechanism and the rotating disk, thereby effectively avoiding the situation that the welding angle of the blades is easily deviated when a single blade is welded; and through the rotational cooperation of the rotating ring and the multiple welding mechanisms, it is convenient to perform synchronous welding operations on the multiple blades in the process of the impeller shaft driving the multiple blades to move synchronously, effectively improving the efficiency and accuracy of the vacuum pump impeller in the production welding; and through the setting of the damping arc sheet, it is convenient to avoid the lateral movement of the blades due to the friction of the shaft body in the process of the impeller shaft extending from the through-opening; it can further improve the position accuracy of the blades welded on the impeller shaft, and greatly reduce the defect rate of the vacuum pump impeller in the production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic structural diagram of the overall present invention from another perspective;

[0018] Figure 3 This is a schematic diagram of the structure of the present invention after the base is removed;

[0019] Figure 4 This is a schematic structural diagram of the present invention from another viewing angle after the base is removed;

[0020] Figure 5 It is a schematic diagram of the structural position of the linear lifting motor, the support plate and the supporting seat of the present invention;

[0021] Figure 6 It is a schematic diagram of the supporting seat and the rotating ring structure of the present invention;

[0022] Figure 7 It is a structural schematic diagram of the supporting seat and the rotating ring of the present invention from another perspective;

[0023] Figure 8 It is a schematic diagram of the structure of the linear lifting motor and the three-jaw chuck of the present invention;

[0024] Fig. 9 It is a schematic diagram of the structure of a single rotating ring and a welding mechanism of the present invention;

[0025] Fig.10 A cross-sectional view of the support plate and one side of the rotating disk of the present invention;

[0026] Fig.11 It is a cross-sectional view of the structure of the rotating disk and the damping arc sheet on one side of the present invention;

[0027] Fig.12 It is a schematic diagram of the structure of the electric telescopic rod and the lifting plate of the present invention;

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure of the limiting hoop of the present invention;

[0029] Fig.14 This is a three-dimensional structural diagram of the limiting hoop of the present invention from another perspective.

[0030] Serial numbers in the figure: 1. base; 2. fixed seat; 3. moving seat; 4. linear lifting motor; 5. supporting seat; 6. rotating ring; 7. limiting hoop; 8. three-jaw chuck; 9. sliding seat; 10. electric push cylinder; 11. linear traverse motor; 12. outer gear ring; 13. U-shaped frame; 14. electric telescopic rod; 15. lifting plate; 16. automatic mechanical arm; 17. welding gun; 18. rotating shaft; 19. driving gear; 20. servo motor; 21. supporting plate; 22. rotating disk; 23. limiting arc plate; 24. damping arc plate; 25. stabilizing bar; 26. return seat; 27. return spring; 28. camera. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Example 1: See Figures 1 to 14 A welding device for producing vacuum pump impellers comprises a base 1 and a fixed base 2 arranged in the middle of the top surface of the base 1, an I-shaped moving base 3 is horizontally slidably arranged on the top surface of the base 1, and a linear lifting motor 4 is installed at one end of the top surface of the moving base 3, and a three-jaw chuck 8 for clamping the impeller shaft is installed on the inner moving plate of the linear lifting motor 4, guide rails are transversely arranged at the front and rear ends of the top of the base 1, and guide grooves cooperating with the guide rails are transversely opened at the four corners of the bottom surface of the moving base 3; a supporting seat 5 is installed on the top of the fixed base 2, a stabilizing groove for the moving base 3 to pass through is transversely opened in the middle of the top surface of the fixed base 2, and the moving base 3 The middle seat body is slidably fitted with the inner bottom surface of the stable groove, further improving the stability and anti-sway effect of the movable seat 3 during lateral movement; stable arc grooves are provided on both sides of the arc groove at the top of the supporting seat 5, and a rotating ring 6 is rotatably provided in the stable arc groove, and the outer sides of the two rotating rings 6 are covered with a limit hoop 7 fixedly connected to the supporting seat 5; a plurality of U-shaped frames 13 are equidistantly provided between the inner ring walls of the rotating ring 6, and a welding mechanism for impeller production welding is installed on the U-shaped frame 13; a sliding seat 9 is slidably installed on the top of the movable seat 3, and an electric push cylinder 10 is installed on the top of the sliding seat 9, and the top of the electric push cylinder 10 is provided with a The movable seat 3 is provided with a guide cavity inside, and a guide cavity is provided inside the guide cavity for automatically resetting the directional assembly; the bottom of the supporting seat 5 is provided with an abutment box, and a driving mechanism for rotating the rotating ring 6 is provided inside the abutment box; a mounting cavity is horizontally provided inside the base 1, and a linear traverse motor 11 for traverse movement of the movable seat 3 is provided inside the mounting cavity, one side of the bottom of the movable seat 3 is fixedly connected to the moving platform of the linear traverse motor 11, and a strip opening is horizontally provided on the top of the base 1 for the moving platform of the linear traverse motor 11 to extend; the driving mechanism includes a rotating shaft 18 inside the rotating abutment box , a driving gear 19 sleeved on both ends of the rotating shaft 18 and an outer gear ring 12 fixedly sleeved on the outer ring wall of the rotating ring 6, a connecting port is opened on the bottom surface of the supporting seat 5, the driving gear 19 is meshed with the outer gear ring 12 for transmission, and a servo motor 20 for driving the rotating shaft 18 is provided on the outside of the abutment box; through the cooperation of the directional component with the welding mechanism and the rotating disk 22, it is convenient to pre-position multiple blades at the inclination angle to be welded and the surrounding amplitude of the welding around the shaft body when welding the impeller shaft and the blades, effectively avoiding the situation where the welding angle of the blades is easily deviated when welding a single blade.

[0033] In the present invention, the welding mechanism includes a circular hole opened at the bottom of the U-shaped frame 13, an electric telescopic rod 14 vertically arranged on the U-shaped frame 13, a lifting plate 15 installed at the bottom of the U-shaped frame 13, and an automatic mechanical arm 16 arranged at the bottom of the lifting plate 15, and the cantilever end of the automatic mechanical arm 16 is provided with a welding gun 17 for blade welding; the telescopic end of the electric telescopic rod 14 extends from the circular hole and is fixedly connected to the top of the lifting plate 15; guide rods are vertically fixedly connected to both sides of the top of the lifting plate 15, and cylindrical holes are vertically opened on both sides of the bottom of the U-shaped frame 13 to cooperate with the guide rods, and the guide rods are movably inserted into the cylindrical holes. Internally, cameras 28 for identifying welding points are installed on both sides of the bottom of the lifting plate 15; the cameras 28 facilitate real-time monitoring of the welding points of the welding mechanism, facilitate timely shutdown and maintenance of the welding mechanism with program errors, and facilitate observation of the position to be welded, so as to timely know whether there is a false welding situation; through the rotation coordination of the rotating ring 6 and the multiple welding mechanisms, it is convenient to perform synchronous welding operations on multiple blades in the process of the impeller shaft driving the multiple blades to move synchronously, effectively improving the efficiency and accuracy of the vacuum pump impeller during production welding.

[0034] Embodiment 2: The technical solution is basically the same as that of Embodiment 1, except that Figure 5 , Fig.10 and Fig.11 As shown, the guide assembly includes a stabilizing rod 25 transversely arranged inside the guide cavity, a return seat 26 sleeved on the stabilizing rod 25, a return spring 27 sleeved on the rod body on one side of the stabilizing rod 25, and a connecting plate fixedly connected to the top of the return seat 26, the return spring 27 is located on one side of the return seat 26, and a rectangular strip opening is transversely opened on the inner top surface of the guide cavity, and the top end of the connecting plate extends from the rectangular strip opening and is fixedly connected to the bottom surface of the sliding seat 9; the sliding seat 9 is located on one side of the fixed seat 2; the directional assembly includes a support plate 21 arranged on the top of the telescopic end of the electric push cylinder 10, a mounting arc groove opened on the top of the support plate 21, and limit arc plates 23 arranged at both ends of the mounting arc groove A rotating disk 22 for directional installation of blades is provided inside the installation arc groove, and a through hole for the impeller shaft to pass through is opened in the middle of the rotating disk 22; a plurality of arc-shaped through grooves for directional installation of blades are evenly spaced on the circumferential side of one side of the rotating disk 22, and the inner ends of the arc-shaped through grooves are connected to the inner ends of the through holes; damping arc plates 24 are provided on the inner walls of the arc-shaped through grooves; the setting of the damping arc plates 24 can facilitate the lateral movement of the blades due to the friction of the shaft body when the impeller shaft extends out of the through hole; the position accuracy of the blades welded on the impeller shaft can be further improved, and the defect rate of the vacuum pump impeller during production can be greatly reduced.

[0035] Working principle: In this embodiment, the present invention also proposes a method for using a welding device for producing a vacuum pump impeller, comprising the following steps:

[0036] Step 1: First, the linear lifting motor 4, the electric push cylinder 10, the linear traverse motor 11, the electric telescopic rod 14, the automatic mechanical arm 16, the welding gun 17, the servo motor 20 and the camera 28 are electrically connected to the external control device through wires, and then the linear lifting motor 4 is started to drive the three-jaw chuck 8 to descend. The staff installs the impeller shaft in the descending three-jaw chuck 8, and clamps and fixes the impeller shaft by starting the three-jaw chuck 8;

[0037] Step 2, then remove the rotating disk 22 from the support plate 21, and then the staff inserts multiple blades to be welded into the multiple arc-shaped grooves of the rotating disk 22. At this time, the blades will be squeezed and frictional by the damping arc sheet 24, and the blades inserted in the arc-shaped grooves will not shake easily. Then, the rotating disk 22 with the installed blades is put back into the installation arc groove of the support plate 21, and it is convenient to rotate and adjust the rotating disk 22 in the installation arc groove, and the rotating disk 22 with the installed blades can be rotated and adjusted to the approximate angle of the blades to be welded;

[0038] Step 3: After the blades and impeller shaft to be welded are installed, the linear lifting motor 4 is started to drive the three-jaw chuck 8 holding the impeller shaft to rise, so that the impeller shaft rises to the same height position as the axis position of the through-hole, and then the linear traverse motor 11 is started to drive the moving seat 3 to move toward the supporting seat 5, so that the linear lifting motor 4 and the three-jaw chuck 8 with the impeller shaft held are inserted into the through-hole of the rotating disk 22;

[0039] Step 4: When the impeller shaft extends out of the through-hole, the friction between the outer wall of the shaft and the inner end of the blade will not push the blade to move. After the impeller shaft extends out of the through-hole, the linear traverse motor 11 stops traversing the movable seat 3. At this time, the driving mechanism is started to drive the two rotating rings 6 to rotate synchronously. The rotation of the rotating ring 6 facilitates driving multiple welding mechanisms to rotate around the impeller shaft and the blade, and then the multiple welding mechanisms are started to weld one end of each blade to the impeller shaft first.

[0040] Step 5: After welding and fixing one end of the blade to the impeller shaft, the linear traverse motor 11 is started again to drive the movable seat 3 to move transversely. When the movable seat 3 moves transversely with the three-jaw chuck 8, the impeller shaft that continues to move transversely will drive the blade on the rotating disk 22 to move toward the inner ring of the rotating ring 6. Then, while the impeller shaft drives the blade to move, multiple welding mechanisms are started simultaneously to weld and fix the blade to the remaining position of the impeller shaft.

[0041] Step 6: When the moving seat 3 drives the linear lifting motor 4 to move horizontally, the support plate 21 will abut against the anti-rotation block on one side of the abutment box. After the support plate 21 abuts, when the moving seat 3 moves subsequently, the support plate 21 and the sliding seat 9 will not move horizontally. Since the sliding seat 9 does not move, the return seat 26 will compress the return spring 27; when each mechanism is reset subsequently, the return seat 26 will automatically reset under the elastic force of the return spring 27;

[0042] Step seven, when the welding mechanism completes the welding between the impeller shaft and multiple blades, the driving mechanism is stopped to drive the slow rotation of the rotating ring 6, and then the linear transverse movement motor 11 is started to drive the moving seat 3 to perform transverse reset. Before the moving seat 3 is reset, the electric push cylinder 10 is started to drive the support plate 21 to descend. When the support plate 21 descends, the rotating disk 22 withdraws from the installation arc groove and is suspended on the impeller shaft, so as to avoid the linear transverse movement motor 11 from blocking the moving path of the rotating disk 22 when driving the moving seat 3 and the impeller shaft with welded blades to perform transverse reset; then after the impeller shaft with welded blades is reset, the linear lifting motor 4 is started to drive the three-jaw chuck 8 to descend. Through this descent of the three-jaw chuck 8, it is convenient to place the welded vacuum pump impeller on the moving seat 3, and finally the staff can take away the welded vacuum pump impeller.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding device for producing a vacuum pump impeller, comprising a base (1) and a fixing seat (2) arranged in the middle of the top surface of the base (1), characterized in that: An I-shaped moving seat (3) is horizontally slidably provided on the top surface of the base (1), and a linear lifting motor (4) is installed at one end of the top surface of the moving seat (3). A three-jaw chuck (8) for clamping the impeller shaft is installed on the inner moving plate of the linear lifting motor (4). Guide rails are transversely provided at the front and rear ends of the top of the base (1), and guide grooves cooperating with the guide rails are transversely provided at the four corners of the bottom surface of the moving seat (3); A supporting seat (5) is installed on the top of the fixed seat (2), and stable arc grooves are opened on both sides of the arc groove on the top of the supporting seat (5), and rotating rings (6) are rotatably arranged in the stable arc grooves, and the outer sides of the two rotating rings (6) are covered with limit hoops (7) fixedly connected to the supporting seat (5); a plurality of U-shaped frames (13) are equidistantly arranged between the inner ring walls of the rotating rings (6), and a welding mechanism for impeller production welding is installed on the U-shaped frames (13); A sliding seat (9) is slidably mounted on the top of the movable seat (3), and an electric push cylinder (10) is mounted on the top of the sliding seat (9), and a directional assembly for placing blades is provided on the top of the electric push cylinder (10); a guide cavity is provided inside the movable seat (3), and a guide assembly for automatically resetting the directional assembly is provided inside the guide cavity; an abutment box is provided at the bottom of the supporting seat (5), and a driving mechanism for rotating the rotating ring (6) is provided inside the abutment box; The orientation assembly comprises a support plate (21) arranged at the top of the telescopic end of the electric push cylinder (10), a mounting arc groove opened at the top of the support plate (21), and limit arc plates (23) arranged at both ends of the mounting arc groove, a rotating disk (22) for directional installation of the blades is arranged inside the mounting arc groove, and a through opening for the impeller shaft to pass through is opened in the middle of the rotating disk (22); A plurality of arc-shaped through grooves for directional installation of blades are evenly spaced around one side of the rotating disk (22), and the inner ends of the arc-shaped through grooves are connected to the inner ends of the through openings; and damping arc plates (24) are provided on the inner walls of the arc-shaped through grooves.

2. A welding device for producing vacuum pump impellers according to claim 1, characterized in that: The guide assembly comprises a stabilizing rod (25) arranged transversely inside the guide cavity, a return seat (26) sleeved on the stabilizing rod (25), a return spring (27) sleeved on a rod body on one side of the stabilizing rod (25), and a connecting plate fixedly connected to the top of the return seat (26), wherein the return spring (27) is located on one side of the return seat (26), and a rectangular strip opening is transversely opened on the inner top surface of the guide cavity, and the top end of the connecting plate extends from the rectangular strip opening and is fixedly connected to the bottom surface of the sliding seat (9); the sliding seat (9) is located on one side of the fixed seat (2).

3. The welding equipment for producing vacuum pump impellers according to claim 1, characterized in that: The base (1) has an installation cavity formed transversely therein, and a linear lateral movement motor (11) for lateral movement of the movable seat (3) is provided inside the installation cavity; one side of the bottom of the movable seat (3) is fixedly connected to a moving platform of the linear lateral movement motor (11), and the top of the base (1) has a strip-shaped opening formed transversely therein for the moving platform of the linear lateral movement motor (11) to extend therefrom.

4. A welding device for producing vacuum pump impellers according to claim 3, characterized in that: The driving mechanism comprises a rotating shaft (18) inside a rotating abutment box, a driving gear (19) sleeved on both ends of the rotating shaft (18), and an outer gear ring (12) fixedly sleeved on the outer wall of the rotating ring (6); a communicating port is provided on the bottom surface of the supporting seat (5); the driving gear (19) meshes with the outer gear ring (12) for transmission; and a servo motor (20) for driving the rotating shaft (18) is provided on the outside of the abutment box.

5. The welding equipment for producing vacuum pump impellers according to claim 1, characterized in that: The welding mechanism comprises a circular hole formed at the bottom of a U-shaped frame (13), an electric telescopic rod (14) vertically arranged on the U-shaped frame (13), a lifting plate (15) installed at the bottom of the U-shaped frame (13), and an automatic mechanical arm (16) arranged at the bottom of the lifting plate (15); a welding gun (17) for blade welding is arranged at a cantilever end of the automatic mechanical arm (16); and a telescopic end of the electric telescopic rod (14) extends out of the circular hole and is fixedly connected to the top of the lifting plate (15).

6. A welding device for producing vacuum pump impellers according to claim 5, characterized in that: Guide rods are vertically fixedly connected to both sides of the top of the lifting plate (15); cylindrical holes are vertically provided on both sides of the bottom of the U-shaped frame (13) to match the guide rods, and the guide rods are movably inserted into the cylindrical holes; cameras (28) for welding point identification are installed on both sides of the bottom of the lifting plate (15).

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