A screw pump multi-station automatic assembly production line

Abstract

The utility model relates to a screw pump multi -position automation assembly production line, the utility model's characteristics lie in, including on -line work station, assembly station, turnover pressure equipment work station, turnover assembly station, engraving assembly station, turnover off -line work station and conveying line body, on -line work station, assembly station, turnover pressure equipment work station, turnover assembly station, engraving assembly station and turnover off -line work station are arranged in proper order along the conveying line body, be provided with a plurality of pieces of follow -up tooling plate on the conveying line body, on -line work station is provided with the travelling crane for hoisting vacuum pump casing, and assembly station is provided with a jib crane, turnover pressure equipment work station, turnover assembly station and turnover off -line work station all are provided with turnover mechanism, and turnover pressure equipment work station and turnover assembly station all are provided with jacking rotary mechanism and guardrail, and turnover pressure equipment work station still is provided with pressure equipment, and turnover off -line work station still is provided with jacking translation mechanism, the utility model discloses structural design is reasonable, integrates turnover and pressure equipment function, can promote assembly efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of fluid machinery assembly technology, specifically to a multi-station automated assembly production line for screw pumps, which is particularly suitable for the automated assembly production of rotary positive displacement pumps such as screw pumps that require multi-station flipping, pressing and precision assembly. Background Technology

[0002] In the screw pump manufacturing industry, traditional assembly methods mainly rely on manual operation and fixed-station assembly, which presents the following technical problems: low assembly efficiency and insufficient automation. Traditional methods employ single-station or segmented assembly, requiring multiple handling of components such as the pump body, rotor, and bearings, resulting in long production cycles and low efficiency. Key processes (such as bearing press-fitting and rear cover alignment) exhibit poor assembly consistency, easily leading to misassembly and omissions. The complex flipping process affects assembly accuracy. Screw pumps require multiple flips during assembly (e.g., 180° flips, 90° flips) to complete assembly on different sides. Traditional methods use cranes and manual flipping, resulting in low positioning accuracy and safety hazards; furthermore, flipped components (such as bearings and sealing rings) may shift, affecting subsequent press-fitting quality. Material flow is poorly coordinated, leading to low production line balance. Reliance on manual handling or forklift transport between processes results in numerous material flow interruptions, causing uneven production line cycles and limited capacity.

[0003] Therefore, there is a great need for a multi-functional assembly line that integrates flipping, pressing, and engraving to improve assembly efficiency and quality. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings in the existing technology and provide a screw pump multi-station automated assembly production line with reasonable structural design, integrated flipping and pressing functions, which can improve assembly efficiency and quality.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: The structural features of this multi-station automated assembly production line for screw pumps are as follows: it includes an upper-line station, an assembly station, a flip-pressing station, a flip-assembly station, an engraving assembly station, a flip-off station, and a conveyor line. The upper-line station, assembly station, flip-pressing station, flip-assembly station, engraving assembly station, and flip-off station are arranged along the conveyor line. Several accompanying tooling plates are provided on the conveyor line. The upper-line station is equipped with a crane for hoisting the vacuum pump housing. The assembly station is equipped with a cantilever crane. The flip-pressing station, flip-assembly station, and flip-off station are all equipped with flipping mechanisms. The flip-pressing station and flip-assembly station are both equipped with lifting and rotating mechanisms and guardrails. The flip-pressing station is also equipped with a pressing machine. The flip-off station is also equipped with a lifting and translating mechanism.

[0006] Preferably, the accompanying tooling plate of this utility model includes: a middle plate; several support rods vertically arranged on the middle plate; a mold fixed to the top of the support rods; a mold support fixed to the top of the mold, wherein the mold support and the mold together constitute a contour support surface for matching the shape of the vacuum pump, so as to restrict the translational and rotational degrees of freedom of the vacuum pump in the X and Y axes and the rotational degree of freedom in the Z axis; and guide wheels installed on the four corners of the middle plate, wherein the guide wheels are fixed by guide wheel nuts.

[0007] Preferably, the online workstation, assembly workstation, flip-pressing workstation, flip-assembly workstation, engraving assembly workstation, and flip-off workstation of this utility model are all equipped with tool plates, which are fixed to the ground on one side of the conveyor line by bolts.

[0008] Preferably, the flipping mechanisms in the flipping pressing station, flipping assembly station, and flipping unloading station of this utility model are all mounted on the conveyor line by columns.

[0009] Preferably, the engraving and assembly station of this utility model is equipped with a nameplate engraving machine.

[0010] An assembly method for a multi-station automated assembly line for screw pumps is characterized by the following steps: At the upper-line station, a crane lifts the vacuum pump housing onto a traveling tooling plate and completes the stud installation of the vacuum pump housing; at the assembly station, a cantilever crane sequentially assembles the rotor, gearbox, and cover plate; at the flipping and pressing station, equipped with a pressing machine and a lifting and rotating mechanism, the coupling and oil slinger are assembled first, and after flipping 180°, key components such as bearings and bushings are pressed in; after the flipping assembly station completes the cover plate and motor assembly, the nameplate marking station uses a nameplate marking machine to laser-mark the nameplate, affix labels, and install water connectors; at the flipping and unloading station, the vacuum pump housing's posture is adjusted by the flipping mechanism, and it is transferred to the unloading area via a lifting and translating mechanism, and finally lifted onto a pallet by a crane.

[0011] Preferably, after the accompanying tooling plate is moved to the assembly station, the rotor assembly of the vacuum pump housing is first installed with cylindrical pins and O-rings, then the rotor assembly is performed, followed by the installation of the gearbox cylindrical pins and O-rings, and finally the gearbox cover plate is installed.

[0012] Preferably, when the accompanying tooling plate moves to the flipping mechanism of the flipping press-fitting station, the coupling and oil slinger are installed first, and then the vacuum pump housing is flipped 180° by the flipping mechanism. Then, the accompanying tooling plate moves to the press-fitting machine of the flipping press-fitting station, and the bushing, piston ring and bearing seat are installed in sequence. Then, the bearing is placed into the bearing hole at the exhaust end, and the bearing is pressed to the bottom by the press-fitting machine. After that, the wave spring and bearing pressure plate are installed. Finally, the axial stop and oil slinger ring are installed.

[0013] Preferably, when the accompanying tooling plate moves to the flipping assembly station, the vacuum pump housing is flipped 180° by the flipping mechanism before the rear cover plate and motor are assembled; when the accompanying tooling plate moves to the nameplate engraving machine at the engraving assembly station, the nameplate is numbered and engraved using the nameplate engraving machine, and the nameplate is assembled, stickers are affixed, and water connectors are installed.

[0014] Preferably, when the accompanying tooling plate moves to the flipping and unloading station, the vacuum pump housing has been assembled into a pump body. First, the pump body is rotated 90° by the line rotation mechanism, and then the pump body is flipped 90° by the flipping mechanism. The accompanying tooling plate returns to the upper line station through the automatic rotation station. The pump body is placed on the lifting and translating mechanism, and then the lifting and translating mechanism moves it to the middle unloading point. Finally, the overhead crane is used to lift the screw pump onto the tray to complete the unloading.

[0015] Compared with the prior art, this utility model has the following advantages and effects: the assembly efficiency of the screw pump is improved, the assembly accuracy is effectively guaranteed through workstation collaboration and automated flipping, and the pressing force is controllable; the accompanying tooling plate is reasonably designed, and the changeover time is shortened. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model and / or the prior art, the drawings used in the description of the embodiments and / or the prior art 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 drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the screw pump multi-station automated assembly production line in this utility model embodiment.

[0018] Figure 2 This is a top view of the multi-station automated assembly line for screw pumps in this embodiment of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the online workstation in an embodiment of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the assembly station in an embodiment of this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the flipping and pressing station in an embodiment of this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the flipping assembly station in an embodiment of this utility model.

[0023] Figure 7 This is a three-dimensional structural diagram of the flipping off-line station in an embodiment of this utility model.

[0024] Figure 8 This is a schematic diagram of the main structure of the accompanying tooling plate in an embodiment of this utility model.

[0025] Figure 9 This is a three-dimensional structural diagram of the accompanying tooling plate in an embodiment of this utility model.

[0026] Figure 10 This is a schematic diagram of the structure of this utility model embodiment, in which the vacuum pump is placed on the accompanying tooling plate.

[0027] In the diagram: 1-Uploading station; 2-Assembly station; 3-Tilting and pressing station; 4-Tilting and assembly station; 5-Engraving and assembly station; 6-Tilting and unloading station; 7-Conveyor line; 71-Vacuum pump housing; 13-Traveling tooling plate; 11-Overhead crane; 12-Tool plate; 21-Cantilever crane; 31-Pressure press machine; 32-Column; 33-Lifting and rotating mechanism; 34-Guardrail; 35-Tilting mechanism; 61-Lifting and translating mechanism; 71-Vacuum pump; 721-Mold upper support; 722-Support rod; 723-Guide wheel; 724-Mold; 725-Middle plate; 726-Contouring support surface. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0029] Example

[0030] See Figures 1 to 10 The multi-station automated assembly production line for screw pumps in this embodiment includes an onboard station 1, an assembly station 2, a flip-pressing station 3, a flip-assembly station 4, an engraving assembly station 5, a flip-off station 6, and a conveyor line 7. The engraving assembly station 5 is equipped with a nameplate engraving machine.

[0031] In this embodiment, the upper line station 1, assembly station 2, flip-pressing station 3, flip-assembly station 4, engraving assembly station 5, and flip-off station 6 are arranged along the conveyor line 7. Several accompanying tooling plates 13 are provided on the conveyor line 7. The upper line station 1 is equipped with a crane 11 for hoisting the vacuum pump housing 71. The assembly station 2 is equipped with a cantilever crane 21. The flip-pressing station 3, flip-assembly station 4, and flip-off station 6 are all equipped with a flipping mechanism 35. The flip-pressing station 3 and flip-assembly station 4 are both equipped with a lifting and rotating mechanism 33 and a guardrail 34. The flip-pressing station 3 is also equipped with a pressing machine 31. The flip-off station 6 is also equipped with a lifting and translating mechanism 61.

[0032] In this embodiment, the accompanying tooling plate 13 includes a mold upper support 721, support rods 722, guide wheels 723, a mold 724, and a middle plate 725. The number of support rods 722 is usually 4 to 12.

[0033] In this embodiment, the support rods 722 are vertically mounted on the middle plate 725. Typically, the support rods 722 are evenly distributed around the perimeter of the middle plate 725. The mold 724 is fixed to the top of the support rods 722. The mold 724 has a detachable structure; for example, it can be fixed to the top of the support rods 722 by snap-fit ​​or by screws, etc. The detachable structure facilitates the replacement of the mold 724, and the support rods 722 provide stable support for the mold 724.

[0034] In this embodiment, the upper mold support 721 is typically made of wear-resistant composite material. The upper mold support 721 is fixed to the top of the mold 724. Together, the upper mold support 721 and the mold 724 form a contour-following support surface 726 that matches the shape of the vacuum pump housing 71, thereby restricting the translational and rotational degrees of freedom of the vacuum pump housing 71 along the X-axis, Y-axis, and Z-axis. The upper mold support 721 is connected to the mold 724, and the support rod 722 is connected to the bottom of the mold 724, forming a complete positioning and support system.

[0035] In this embodiment, the guide wheels 723 are mounted on the four corners of the middle plate 725 via guide wheel nuts. The guide wheel nuts can be adjusted to a fixed height, and can be clearance-fitted with the stainless steel guide strips of the conveyor line. The guide wheels 723 cooperate with the guide strips of the conveyor line to realize the directional movement of the accompanying tooling plate 13, ensuring that the accompanying tooling plate 13 moves smoothly along a predetermined trajectory. The accompanying tooling plate 13 is synchronously conveyed by the roller conveyor line.

[0036] In this embodiment, tool plates 12 are provided at the upper line station 1, assembly station 2, flip-pressing station 3, flip-assembly station 4, engraving assembly station 5, and flip-off station 6. The tool plates 12 are fixed to the ground on one side of the conveyor line 7 by bolts. The flipping mechanisms 35 in the flip-pressing station 3, flip-assembly station 4, and flip-off station 6 are usually mounted on the conveyor line 7 by columns 32.

[0037] The assembly method of the screw pump multi-station automated assembly line in this embodiment is as follows: At the upper station 1, a crane 11 is used to hoist the vacuum pump housing 71 onto the accompanying tooling plate 13, and the studs of the vacuum pump housing 71 are installed; at the assembly station 2, a cantilever crane 21 is used to sequentially assemble the rotor, gearbox, and cover plate; at the flipping and pressing station 3, equipped with a pressing machine 31 and a lifting and rotating mechanism 33, the coupling and oil slinger are assembled first, and after flipping 180°, key components such as bearings and bushings are pressed in; at the flipping assembly station 4, the cover plate and motor are assembled; at the marking assembly station 5, a nameplate marking machine is used to laser-mark the nameplate, affix labels, and install water connectors; at the flipping and lowering station 6, the posture of the vacuum pump housing 71 is adjusted by the flipping mechanism 35, and it is transferred to the lowering area via the lifting and translating mechanism 61, and finally hoisted onto the pallet by the crane 11.

[0038] In this embodiment, after the accompanying tooling plate 13 moves to the assembly station 2, the rotor assembly cylindrical pins and O-rings of the vacuum pump housing 71 are installed first, then the rotor assembly is installed, then the gearbox cylindrical pins and O-rings are installed, and finally the gearbox cover plate is installed.

[0039] In this embodiment, when the accompanying tooling plate 13 moves to the flipping mechanism 35 of the flipping press-fitting station 3, the coupling and oil slinger are installed first, and then the vacuum pump housing 71 is flipped 180° by the flipping mechanism 35. Then, the accompanying tooling plate 13 moves to the press-fitting machine 31 of the flipping press-fitting station 3, and the bushing, piston ring and bearing seat are installed in sequence. Then the bearing is placed into the bearing hole at the exhaust end, and the press-fitting machine 31 is used to press the bearing to the bottom. After that, the wave spring and bearing pressure plate are installed. Finally, the axial stop and oil slinger ring are installed.

[0040] In this embodiment, when the accompanying tooling plate moves to the flipping assembly station 4, the vacuum pump housing 71 is flipped 180° by the flipping mechanism and then the rear cover plate and motor are assembled; when the accompanying tooling plate moves to the nameplate engraving machine at the engraving assembly station 5, the nameplate is numbered and engraved by the nameplate engraving machine, and the nameplate is assembled, stickers are affixed, and water connectors are installed.

[0041] In this embodiment, when the accompanying tooling plate moves to the flipping off-line station 6, the vacuum pump housing 71 has been assembled into a pump body. First, the pump body is rotated 90° by the line rotation mechanism, and then the pump body is flipped 90° by the flipping mechanism 35. The accompanying tooling plate 13 returns to the upper line station 1 through the automatic rotation station. The pump body is placed on the lifting and translating mechanism 61, and then the lifting and translating mechanism 61 moves it to the middle off-line position. Finally, the crane 11 is used to lift the screw pump onto the tray to complete the off-line process.

[0042] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

Claims

1. A multi-station automated assembly production line for screw pumps, characterized in that, The system includes an online workstation (1), an assembly workstation (2), a flip-over pressing workstation (3), a flip-over assembly workstation (4), an engraving assembly workstation (5), a flip-over unloading workstation (6), and a conveyor line (7). The online workstation (1), assembly workstation (2), flip-over pressing workstation (3), flip-over assembly workstation (4), engraving assembly workstation (5), and flip-over unloading workstation (6) are arranged along the conveyor line (7). The conveyor line (7) is equipped with several accompanying tooling plates (13). The online workstation (1) is equipped with... The assembly station (2) is equipped with a crane (11) for hoisting the vacuum pump housing (71), and the assembly station (2) is equipped with a cantilever crane (21). The flipping press station (3), the flipping assembly station (4) and the flipping off-line station (6) are all equipped with a flipping mechanism (35). The flipping press station (3) and the flipping assembly station (4) are both equipped with a lifting and rotating mechanism (33). The flipping press station (3) is also equipped with a press machine (31), and the flipping off-line station (6) is also equipped with a lifting and translating mechanism (61).

2. The multi-station automated assembly production line for screw pumps according to claim 1, characterized in that, The accompanying tooling plate (13) includes: a middle plate (725); several support rods (722) vertically arranged on the middle plate (725); a mold (724) fixed to the top of the support rods (722); a mold support (721) fixed to the top of the mold (724), the mold support (721) and the mold (724) together form a contour support surface (726) for matching the shape of the vacuum pump housing (71) to limit the translational and rotational degrees of freedom of the vacuum pump housing (71) in the X-axis and Y-axis and the rotational degrees of freedom in the Z-axis; and guide wheels (723) installed on the four corners of the middle plate (725), the guide wheels (723) being fixed by guide wheel nuts.

3. The multi-station automated assembly production line for screw pumps according to claim 1, characterized in that, The online workstation (1), assembly workstation (2), flip-pressing workstation (3), flip-assembly workstation (4), engraving assembly workstation (5) and flip-off workstation (6) are all equipped with tool plates (12), which are fixed to the ground on one side of the conveyor line (7) by bolts.

4. The multi-station automated assembly production line for screw pumps according to claim 1, characterized in that, The flipping mechanisms (35) in the flipping press station (3), flipping assembly station (4) and flipping off-line station (6) are all mounted on the conveyor line (7) by columns (32).

5. The multi-station automated assembly production line for screw pumps according to claim 1, characterized in that, The engraving assembly station (5) is equipped with a nameplate engraving machine.

6. The multi-station automated assembly production line for screw pumps according to claim 1, characterized in that, Both the flipping press station (3) and the flipping assembly station (4) are equipped with guardrails (34).

Images