Positioning assembly for assembling oil-free vortex vacuum pump

Abstract

The utility model relates to the technical field of vacuum pump assembling and positioning, and discloses a positioning assembly for assembling an oil-free vortex vacuum pump, which comprises an assembling table, the top of the assembling table is provided with a positioning assembly, the positioning assembly is used for providing accurate limiting and positioning during assembling, and the positioning assembly comprises a fixing disc. A rotating shaft is rotatably connected to the interior of the fixing disc, a connecting plate is fixedly connected to the top of the fixing plate, and a mounting and dismounting assembly is arranged on one side of the fixing disc and used for facilitating rapid replacement and maintenance of equipment by operators. According to the oil-free vortex vacuum pump, the output end of the air cylinder drives the arch-shaped rod to slide on the outer wall of the connecting shaft, and when the arch-shaped rod slides, the transmission rod can further rotate synchronously, so that the effect of rapidly positioning and limiting the vacuum pump is achieved, and the problems that the position deviation is large and internal gaps are uneven when the oil-free vortex vacuum pump is assembled are solved; and the assembly efficiency and the production efficiency of the vacuum pump are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum pump assembly positioning technical field especially relates to a kind of positioning assembly for the assembly of oil-free scroll vacuum pump. BACKGROUND

[0002] In modern industrial production, oil-free scroll vacuum pump is widely used in semiconductor manufacturing, vacuum coating, medical equipment and many other fields due to its excellent performance, such as high efficiency of gas extraction, low noise, no pollution, etc. With the continuous improvement of the performance requirements of oil-free scroll vacuum pump in various industries, its assembly precision and quality have become key factors affecting product performance and reliability. As the core component for ensuring accurate installation of each part of the oil-free scroll vacuum pump, the positioning assembly for assembly plays a crucial role in improving assembly efficiency and ensuring product quality.

[0003] Currently, in the assembly process of oil-free scroll vacuum pump, the traditional positioning technology mainly adopts a simple jig combined with manual alignment. These jigs are usually simple in structure and mainly rely on mechanical blocking and support to preliminarily fix the position of the parts. The technical principle is to match the profile of some parts of the oil-free scroll vacuum pump with the pre-set grooves, protrusions and other structures on the jig, thereby achieving a certain degree of positioning. During assembly, workers observe and manually adjust the position of the parts on the jig to try to achieve a relatively accurate positional relationship.

[0004] However, this traditional positioning method has significant problems. Due to the limited accuracy of manual alignment, it is difficult to ensure the precise positional relationship between the outer shell and the internal parts of the oil-free scroll vacuum pump. In actual assembly process, the installation position of the outer shell and internal scroll disc, motor and other components often deviates, resulting in uneven gaps between the internal parts of the assembled vacuum pump. This not only affects the flow path and efficiency of gas in the pump, but also causes abnormal friction and wear between the parts, ultimately reducing the pumping efficiency and service life of the vacuum pump. Therefore, a positioning assembly for the assembly of oil-free scroll vacuum pump is proposed to solve the above problems. SUMMARY

[0005] To overcome the above shortcomings, the utility model provides a positioning assembly for the assembly of oil-free scroll vacuum pump, aiming to improve the problem of positional deviation between the outer shell and internal parts of the oil-free scroll vacuum pump due to limited accuracy of manual alignment during assembly, which further causes uneven gaps, reduced pumping efficiency and shortened service life of the assembled vacuum pump.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of positioning assembly for assembling oil-free scroll vacuum pump, including assembly table, the positioning assembly is arranged on the top of assembly table, and the positioning assembly is used to provide accurate limit positioning when assembling;

[0008] The positioning assembly includes a fixed disc, a rotating shaft is rotatably connected inside the fixed disc, a fixed plate is fixedly connected to the top of the rotating shaft, a connecting plate is fixedly connected to the top of the fixed plate, a pneumatic cylinder is fixedly connected to the top of the fixed plate, an arcuate rod is fixedly connected to the output end of the pneumatic cylinder, a connecting shaft is slidably connected inside, one end of the connecting shaft is fixedly connected to the side wall of the connecting plate, a transmission rod is rotatably connected to the outer wall of the connecting shaft, a fixed ring is rotatably connected to one side of the transmission rod, a protective ring is fixedly connected to one side of the fixed ring, the protective ring is made of rubber material, and a mounting and dismounting assembly is arranged on one side of the fixed disc, which is used to facilitate operators to quickly replace and maintain the equipment.

[0009] As a further description of the above technical solution:

[0010] The mounting and dismounting assembly includes a first fixed block and a second fixed block, the first fixed block is fixedly connected to the top of the assembly table, and the second fixed block is fixedly connected to the side wall of the fixed disc.

[0011] As a further description of the above technical solution:

[0012] One side of the second fixed block is fixedly connected to a connecting block, and a sliding rod is slidably connected inside the connecting block.

[0013] As a further description of the above technical solution:

[0014] A clamping groove is formed in the first fixed block, a pull ring is fixedly connected to one end of the sliding rod, and a plurality of anti-slip balls are fixedly connected inside the pull ring.

[0015] As a further description of the above technical solution:

[0016] The other end of the sliding rod is fixedly connected to a tapered block, and a spring is sleeved on the outer wall of the sliding rod.

[0017] As a further description of the above technical solution:

[0018] One end of the spring is fixedly connected to the inner wall of the connecting block, and the other end is fixedly connected to the side wall of the tapered block.

[0019] As a further description of the above technical solution:

[0020] A connecting column is fixedly connected to one side of the connecting block, a fixed ball is slidably connected to the outer wall of the tapered block, and the fixed ball is matched with the clamping groove.

[0021] As a further description of the above technical solution:

[0022] One end of the conical block is fixedly connected to a base, and the base slides inside the connecting column.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the output end of the cylinder drives the bow-shaped rod to slide on the outer wall of the connecting shaft. When the bow-shaped rod slides, it will further cause the transmission rod to rotate synchronously, which will further drive the fixed ring and the protective ring to squeeze inward synchronously. The vacuum pump is fixed and positioned by the compression of the protective ring, thereby achieving the effect of quickly positioning and limiting the vacuum pump. This solves the problem of large position deviation and uneven internal gap during the assembly of oil-free vortex vacuum pumps, and improves the assembly efficiency and the production efficiency of vacuum pumps.

[0025] 2. In this utility model, by pulling the pull ring, the sliding rod and the conical block slide inside the connecting column and the connecting block, thereby causing the spring to undergo elastic deformation. The movement of the conical block causes the fixed ball to engage with the slot, thereby achieving the effect of quick disassembly and installation of the positioning component. This solves the problem of cumbersome and time-consuming disassembly and assembly of the positioning component, which affects the continuity of equipment maintenance and assembly processes, and improves the maintenance efficiency of the equipment. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a positioning component for assembling an oil-free vortex vacuum pump according to the present invention.

[0027] Figure 2 This is a schematic diagram of the side of the connecting plate of the positioning assembly for an oil-free vortex vacuum pump proposed in this utility model.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic cross-sectional view of the connecting block of the positioning component for assembling an oil-free vortex vacuum pump proposed in this utility model.

[0030] Legend:

[0031] 1. Assembly table; 2. Fixed plate; 3. Rotating shaft; 4. Fixed plate; 5. Cylinder; 6. Bow-shaped rod; 7. Transmission rod; 8. Fixed ring; 9. Protective ring; 10. Connecting plate; 11. Connecting shaft; 12. Fixed block one; 13. Fixed block two; 14. Connecting block; 15. Sliding rod; 16. Pull ring; 17. Conical block; 18. Anti-slip ball; 19. Spring; 20. Connecting column; 21. Slot; 22. Fixed ball; 23. Base. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 and Figure 2 The present invention provides an embodiment of an oil-free vortex vacuum pump assembly positioning component, including an assembly table 1 for providing a stable operating platform for the operator, and a positioning component on the top of the assembly table 1 for providing precise limiting positioning during assembly.

[0034] The positioning assembly includes a fixed plate 2, with a rotating shaft 3 rotatably connected inside the fixed plate 2 for easy adjustment of the assembly direction by the operator, improving flexibility. A fixed plate 4 is fixedly connected to the top of the rotating shaft 3, and a connecting plate 10 is fixedly connected to the top of the fixed plate 4. The function of the connecting plate 10 is to reliably connect the cylinder 5, the bow rod 6, and other components. The cylinder 5 is fixedly connected to the top of the fixed plate 4, and the bow rod 6 is fixedly connected to the output end of the cylinder 5. A connecting shaft 11 is slidably connected inside the fixed plate 4. The connecting shaft 11 has a sliding fit structure to ensure that the bow rod 6 can slide smoothly during operation. One end of the connecting shaft 11 is fixedly connected to the side wall of the connecting plate 10, and a transmission rod 7 is rotatably connected to the outer wall of the connecting shaft 11. A fixed ring 8 is rotatably connected to one side of the transmission rod 7, and a protective ring 9 is fixedly connected to one side of the fixed ring 8. The protective ring 9 is made of rubber and is used to protect the vacuum pump. An installation and disassembly assembly is provided on one side of the fixed plate 2 to facilitate quick replacement and maintenance of the equipment by the operator.

[0035] Specifically, when assembling or maintaining an oil-free scroll vacuum pump requires repeated loading and unloading of parts, or when strict requirements are placed on assembly precision, and conventional positioning methods cannot guarantee accurate installation of the outer casing and internal components, potentially leading to performance degradation, the operator first places the vacuum pump housing inside the retaining ring 8. The retaining ring 8 provides stable support and positioning for the entire vacuum pump equipment, ensuring the normal operation of other components. Next, the output end of the cylinder 5 drives the bow-shaped rod 6 to slide up and down. The function of the cylinder 5 is to provide the necessary power to push the bow-shaped rod 6 to produce linear motion. During the sliding process, the bow-shaped rod 6 drives the connecting shaft 11 to slide along the inclined groove opened inside it. This inclined groove can convert the linear motion of the bow-shaped rod 6 into rotational or offset motion. As the connecting shaft 11 slides, it causes the transmission rod 7 to offset along its outer wall through the action of the transmission rod 7. The transmission rod 7 enables it to transmit motion to the fixed ring 8 and the protective ring 9, causing the two rings to press inward synchronously. In this process, the offset motion of the transmission rod 7 converts the force from the cylinder 5 into the pressure of the fixed ring 8 and the protective ring 9. As the protective ring 9 is under pressure, it begins to contact the vacuum pump housing and produce elastic deformation. This elastic deformation allows the protective ring 9 to increase the friction between itself and the vacuum pump housing, thereby achieving a better positioning effect.

[0036] Reference Figure 3 and Figure 4 The installation and disassembly assembly includes a first fixing block 12 and a second fixing block 13. The first fixing block 12 is fixedly connected to the top of the assembly table 1, and the second fixing block 13 is fixedly connected to the side wall of the fixing plate 2 to provide support stability and ensure the stability of the assembly. A connecting block 14 is fixedly connected to one side of the second fixing block 13, and a sliding rod 15 is slidably connected inside the connecting block 14. The first fixing block 12 has a slot 21 inside, which is used to cooperate with the fixing ball 22 to achieve quick fixing and unlocking. A pull ring 16 is fixedly connected to one end of the sliding rod 15, and multiple anti-slip balls 18 are fixedly connected inside the pull ring 16. A conical block 17 is fixedly connected to the other end of the sliding rod 15. A spring 19 is sleeved on the outer wall of the sliding rod 15 to provide a certain elastic restoring force and ensure the stability of the assembly movement.

[0037] Specifically, when the oil-free vortex vacuum pump undergoes frequent assembly, debugging, routine maintenance, or requires rapid replacement of worn parts or adjustment of the internal structure to adapt to different working conditions, the operator applies a pulling force by pulling the pull ring 16. Under the action of the pulling force, the pull ring 16 will cause the sliding rod 15 to slide smoothly inside the connecting block 14. The main function of the sliding rod 15 is to transmit power, ensuring that the pulling force can be transmitted to the subsequent components. When the sliding rod 15 slides, it drives the conical block 17 to slide synchronously inside the connecting column 20. The connecting column 20, as a stable support component, ensures the smooth movement of the conical block 17. At the same time, the connecting column 20 provides a guiding function, so that the sliding of the conical block 17 will not deviate, maintaining the accuracy and stability of the entire device.

[0038] Reference Figure 3 and Figure 4 One end of the spring 19 is fixedly connected to the inner wall of the connecting block 14, and the other end is fixedly connected to the side wall of the conical block 17, ensuring that the spring 19 can withstand the lateral force on its inner wall, thereby undergoing elastic deformation. A connecting post 20 is fixedly connected to one side of the connecting block 14, and a fixed ball 22 is slidably connected to the outer wall of the conical block 17 for cooperating with the slot 21 to achieve a quick unlocking and locking effect. The fixed ball 22 fits into the slot 21, and a base 23 is fixedly connected to one end of the conical block 17, and the base 23 slides inside the connecting post 20.

[0039] Specifically, during the sliding process of the conical block 17, it applies pressure to the spring 19 through its movement, causing the spring 19 to undergo elastic deformation. The function of the spring 19 is to provide the necessary elastic reaction force, so that when the conical block 17 is subjected to external force, it can maintain the balance of the component through compression and rebound. The spring 19 not only enhances the stability of the component, but also plays a buffering role, reducing the impact of external forces. The movement of the conical block 17 will also cause the fixed ball 22 on the outer wall to slide. The fixed ball 22 cooperates with the outer wall of the conical block 17, and achieves close contact with the slot 21 through the spherical structure. When the conical block 17 slides down, it will cause the fixed ball 22 to be inserted into the slot 21, thereby achieving rapid fixation.

[0040] Working principle: When using this device, the operator places the vacuum pump housing inside the fixed ring 8. The output end of the cylinder 5 drives the bow-shaped rod 6 to slide up and down. As the bow-shaped rod 6 slides, the connecting shaft 11 slides along the inclined groove inside, causing the transmission rod 7 to rotate and shift on its outer wall. This shifting motion of the transmission rod 7 causes the fixed ring 8 and the protective ring 9 to be pressed inward simultaneously. This pressing causes the protective ring 9 to contact the vacuum pump, resulting in elastic deformation and increasing the friction with the vacuum pump, thus positioning the vacuum pump. This allows for easy disassembly and maintenance of the equipment. During unloading, the operator pulls the pull ring 16, and the sliding rod 15 slides inside the connecting block 14 under the action of the pulling force. When the sliding rod 15 slides, it will drive the conical block 17 to slide synchronously inside the connecting column 20. The sliding of the conical block 17 compresses the spring 19 to cause it to deform elastically. The movement of the conical block 17 will cause the fixed ball 22 to slide on its outer wall. When the conical block 17 moves downward, it will cause the fixed ball 22 to be inserted into the slot 21 to achieve quick fixation. When the conical block 17 moves upward, it will release the fixed ball 22, so that the fixed ball 22 is disengaged from the slot 21 to achieve unlocking.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning assembly for assembling an oil-free scroll vacuum pump, comprising an assembly table (1), characterized in that: The assembling table (1) top is provided with a positioning assembly, which is used for providing accurate limiting positioning during assembly; The positioning assembly comprises a fixed disc (2), a rotating shaft (3) is rotatably connected inside the fixed disc (2), a fixed plate (4) is fixedly connected to the top of the rotating shaft (3), a connecting plate (10) is fixedly connected to the top of the fixed plate (4), a gas cylinder (5) is fixedly connected to the top of the fixed plate (4), an arcuate rod (6) is fixedly connected to the output end of the gas cylinder (5), a connecting shaft (11) is slidably connected inside, one end of the connecting shaft (11) is fixedly connected to the side wall of the connecting plate (10), a transmission rod (7) is rotatably connected to the outer wall of the connecting shaft (11), a fixed ring (8) is rotatably connected to one side of the transmission rod (7), a protective ring (9) is fixedly connected to one side of the fixed ring (8), the protective ring (9) is made of rubber material, and a mounting and dismounting assembly is arranged on one side of the fixed disc (2), which is used for facilitating operators to quickly replace and maintain the equipment.

2. A positioning assembly for assembling an oil-free scroll vacuum pump according to claim 1, characterized in that: The mounting and dismounting assembly comprises a fixed block one (12) and a fixed block two (13), the fixed block one (12) is fixedly connected to the top of the assembling table (1), and the fixed block two (13) is fixedly connected to the side wall of the fixed disc (2).

3. A positioning assembly for assembling an oil-free scroll vacuum pump according to claim 2, characterized in that: One side of the fixed block two (13) is fixedly connected with a connecting block (14), and a sliding rod (15) is slidably connected inside the connecting block (14).

4. A positioning assembly for assembling an oil-free scroll vacuum pump according to claim 3, characterized in that: A clamping groove (21) is formed in the fixed block one (12), a pull ring (16) is fixedly connected to one end of the sliding rod (15), and a plurality of anti-skid balls (18) are fixedly connected inside the pull ring (16).

5. A positioning assembly for assembling an oil-free scroll vacuum pump according to claim 4, characterized in that: The other end of the sliding rod (15) is fixedly connected with a tapered block (17), and a spring (19) is sleeved on the outer wall of the sliding rod (15).

6. A positioning assembly for assembling an oil-free scroll vacuum pump according to claim 5, characterized in that: One end of the spring (19) is fixedly connected to the inner wall of the connecting block (14), and the other end is fixedly connected to the side wall of the tapered block (17).

7. A positioning assembly for assembling an oil-free scroll vacuum pump according to claim 6, characterized in that: One side of the connecting block (14) is fixedly connected with a connecting column (20), a fixed ball (22) is slidably connected to the outer wall of the tapered block (17), and the fixed ball (22) is matched with the clamping groove (21).

8. A positioning assembly for assembling an oil-free scroll vacuum pump according to claim 7, characterized in that: One end of the tapered block (17) is fixedly connected with a base (23), and the base (23) slides inside the connecting column (20).

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