Contactless assembly aid

Abstract

The contactless assembly auxiliary device comprises a cylinder, the side wall of the cylinder is a hollow structure, an outer thread is arranged at one end of the side wall of the cylinder, and a plurality of clamping surfaces are arranged at the other end of the side wall of the cylinder; a plurality of uniformly distributed air outlets are arranged on the inner wall of the cylinder; a plurality of uniformly distributed air pipe joints are fixed on the end face of the side wall, close to the clamping surfaces, and the air pipe joints are in communication with the hollow side wall. The contactless assembly auxiliary device keeps the shaft and the shaft sleeve in a separated state through the air passage and compressed gas, so that scratching does not occur, the service life of the parts is increased, and safety accidents caused by static electricity generated by friction are avoided; and the working strength of the operator can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of precision assembly, and relates to a non-contact assembly auxiliary device. BACKGROUND

[0002] In some special application occasions, the working surfaces of the shaft and the shaft sleeve cannot be in contact during assembly, and non-contact assembly is a difficult problem under the condition that the gap between the shaft and the shaft sleeve is small. In order to improve the service performance and service life of the parts and avoid safety accidents caused by static electricity generated by friction, the mutual friction and scratching cannot occur during assembly of the shaft sleeve. Under the condition that the shaft sleeve gap is small, the traditional positioning and manual installation method cannot meet the non-contact requirement. SUMMARY

[0003] The application aims to provide a non-contact assembly auxiliary device to solve the technical problem that the shaft and the shaft sleeve are in contact during assembly due to the small gap

[0004] The technical scheme adopted by the application is that the non-contact assembly auxiliary device comprises a cylinder, the side wall of the cylinder is a hollow structure, an external thread is formed at one end of the side wall of the cylinder, and a plurality of clamping surfaces are formed at the other end of the side wall of the cylinder; a plurality of uniformly distributed air outlets are formed on the inner wall of the cylinder; a plurality of uniformly distributed air pipe joints are arranged on the end face of the side wall close to the clamping surfaces, and the air pipe joints are in communication with the hollow side wall.

[0005] The application also has the following characteristics:

[0006] The air pipe joint is in the shape of a circular arc.

[0007] One end of the air pipe joint is fixedly connected to the end face of the side wall close to the clamping surface, and the other end is away from the cylinder.

[0008] A plurality of air channel partitions are arranged in the side wall.

[0009] The plurality of air channel partitions are in the shape of a spiral, the air channel partitions are fixedly connected to the side wall, and a plurality of spiral air channels are formed.

[0010] The number of the air channels is the same as that of the air pipe joints, and the air channels are in communication with the air pipe joints.

[0011] The plurality of air outlets are uniformly distributed in the air channels.

[0012] The number of the air outlets in each air channel is the same.

[0013] The clamping surface has four clamping surfaces.

[0014] The beneficial effects of the present invention are as follows: The non-contact assembly auxiliary device provided by the present invention introduces compressed gas into the air passage, so that the shaft and bushing form an air film and remain separated, thus preventing scraping and extending the service life of the parts; it avoids safety accidents caused by static electricity generated by friction; and it can also replace traditional manual assembly with automated assembly, greatly reducing the workload of operators.

[0015] The non-contact assembly auxiliary device of this invention reduces the defect rate caused by factors such as worker skill level and fatigue, and has a high first-time assembly success rate;

[0016] The non-contact assembly auxiliary device of the present invention eliminates the need for manual judgment of whether the shaft and bushing are in contact during operation, and operators only need simple training to start working, reducing the requirements for operational proficiency.

[0017] The non-contact assembly auxiliary device of this invention allows workers to avoid close observation of the assembly process, thus preventing accidents and increasing safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the non-contact auxiliary assembly device of the present invention;

[0019] Figure 2 This is a cross-sectional view of the contactless auxiliary assembly device of the present invention;

[0020] Figure 3 This is an assembly diagram of the contactless auxiliary assembly device of the present invention;

[0021] Among them, 1. shaft; 2. non-contact assembly auxiliary device; 3. bushing; 4. bushing bottom; 5. air pipe connector; 6. air outlet; 7. clamping surface; 8. air passage; 9. air passage partition. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] Non-contact assembly auxiliary devices, such as Figure 1 As shown, it includes a cylinder with a hollow sidewall. One end of the cylinder sidewall has an external thread, and the other end has several clamping surfaces 7. Several evenly distributed air outlets 6 are provided on the inner wall of the cylinder. Several evenly distributed air pipe connectors 5 are installed on the sidewall near the clamping surface 7. The air pipe connectors 5 are connected to the hollow sidewall.

[0024] The endotracheal connector 5 is arc-shaped.

[0025] One end of the endotracheal connector 5 is fixed to the end face of the side wall near the clamping surface 7, and the other end is away from the cylinder.

[0026] Several airway baffles 9 are installed inside the side wall.

[0027] Several airway baffles 9 are spiral-shaped and fixed to the sidewalls to form several spiral airways 8.

[0028] The number of airways 8 and air tube connectors 5 is the same, and the airways 8 and air tube connectors 5 are connected; all air tube connectors 5 are connected to the same air pump to keep the air pressure of the air tube connectors 5 consistent. In this way, the air pressure of the gas ejected from the air outlet 6 corresponding to each airway 8 is the same, and the pressure of the spiral air film formed is uniform and equal.

[0029] Several air outlets 6 are evenly distributed within the air passage 8.

[0030] The number of air outlets 6 in each airway 8 is the same.

[0031] There are 4 clamping surfaces 7.

[0032] The contactless assembly auxiliary device of the present invention has the following specific working process:

[0033] like Figure 3 As shown, during operation, the non-contact assembly auxiliary device 2 is first connected to the bushing 3 via the external thread on the cylindrical body, and all air pipe connectors 5 are connected to the same air pump. The air pump is turned on, and gas flows along the air passage 8 and is ejected from the air outlet 6. Since the air pressure in each air passage 8 is consistent, the gas pressure ejected from each air outlet 6 is also the same. The shaft 1 is inserted through the end of the non-contact assembly auxiliary device 2 furthest from the external thread. The air pressure difference corrects the position of the shaft 1 in the bushing 3, keeping the shaft 1 and bushing 3 coaxial and equidistantly separated. Assembly is complete when the end of the shaft 1 reaches the bottom end 4 of the bushing.

[0034] Example 1

[0035] The non-contact assembly auxiliary device includes a cylinder with a hollow side wall. One end of the cylinder side wall has an external thread, and the other end has several clamping surfaces 7. Several evenly distributed air outlets 6 are provided on the inner wall of the cylinder. Several evenly distributed air pipe connectors 5 are installed on the side wall near the clamping surfaces 7. The air pipe connectors 5 are connected to the hollow side wall.

[0036] The endotracheal connector 5 is arc-shaped.

[0037] One end of the endotracheal connector 5 is fixed to the end face of the side wall near the clamping surface 7, and the other end is away from the cylinder.

[0038] There are 4 clamping surfaces 7.

[0039] Example 2

[0040] The non-contact assembly auxiliary device comprises a cylinder, the side wall of the cylinder is a hollow structure, an external thread is arranged at one end of the side wall of the cylinder, and a plurality of clamping surfaces 7 are arranged at the other end of the side wall of the cylinder; a plurality of uniformly distributed air outlet holes 6 are arranged on the inner wall of the cylinder; a plurality of uniformly distributed air pipe joints 5 are arranged on the end face of the side wall close to the clamping surface 7, and the air pipe joint 5 is in communication with the hollow side wall.

[0041] The air pipe joint 5 is in the shape of a circular arc.

[0042] One end of the air pipe joint 5 is fixedly connected to the end face of the side wall close to the clamping surface 7, and the other end is away from the cylinder.

[0043] A plurality of air channel partitions 9 are arranged in the side wall.

[0044] The plurality of air channel partitions 9 are in the shape of a spiral, the air channel partition 9 is fixedly connected to the side wall, and a plurality of spiral air channels 8 are formed.

[0045] The number of the air channel 8 is the same as that of the air pipe joint 5, and the air channel 8 is in communication with the air pipe joint 5.

[0046] The plurality of air outlet holes 6 are uniformly distributed in the air channel 8.

[0047] The clamping surface 7 has four.

[0048] Embodiment 3

[0049] The non-contact assembly auxiliary device comprises a cylinder, the side wall of the cylinder is a hollow structure, an external thread is arranged at one end of the side wall of the cylinder, and a plurality of clamping surfaces 7 are arranged at the other end of the side wall of the cylinder; a plurality of uniformly distributed air outlet holes 6 are arranged on the inner wall of the cylinder; a plurality of uniformly distributed air pipe joints 5 are arranged on the end face of the side wall close to the clamping surface 7, and the air pipe joint 5 is in communication with the hollow side wall.

[0050] The air pipe joint 5 is in the shape of a circular arc.

[0051] One end of the air pipe joint 5 is fixedly connected to the end face of the side wall close to the clamping surface 7, and the other end is away from the cylinder.

[0052] A plurality of air channel partitions 9 are arranged in the side wall.

[0053] The plurality of air channel partitions 9 are in the shape of a spiral, the air channel partition 9 is fixedly connected to the side wall, and a plurality of spiral air channels 8 are formed.

[0054] The number of the air channel 8 is the same as that of the air pipe joint 5, and the air channel 8 is in communication with the air pipe joint 5.

[0055] The plurality of air outlet holes 6 are uniformly distributed in the air channel 8.

[0056] The number of the air outlet holes 6 in each air channel 8 is the same.

[0057] The clamping surface 7 has four.

Claims

1. A non-contact assembly auxiliary device, characterized in that, The cylinder includes a hollow sidewall, one end of which is provided with an external thread and the other end with several clamping surfaces (7); several evenly distributed air outlets (6) are provided on the inner wall of the cylinder; several evenly distributed air pipe connectors (5) are installed on the sidewall near the clamping surface (7), and the air pipe connectors (5) are connected to the hollow sidewall.

2. The contactless assembly auxiliary device according to claim 1, characterized in that, The endotracheal connector (5) is arc-shaped.

3. The contactless assembly auxiliary device according to claim 2, characterized in that, One end of the tracheal connector (5) is fixed to the end face of the side wall near the clamping surface (7), and the other end is away from the cylinder.

4. The contactless assembly auxiliary device according to any one of claims 1-3, characterized in that, Several airway baffles (9) are provided inside the side wall.

5. The contactless assembly auxiliary device according to claim 4, characterized in that, Several of the airway baffles (9) are spiral in shape, and the airway baffles (9) are fixed to the side wall to form several spiral airways (8).

6. The contactless assembly auxiliary device according to claim 5, characterized in that, The number of airways (8) is the same as the number of airway connectors (5), and the airways (8) are connected to the airway connectors (5).

7. The contactless assembly auxiliary device according to claim 6, characterized in that, Several of the air outlets (6) are evenly distributed within the air passage (8).

8. The contactless assembly auxiliary device according to claim 7, characterized in that, The number of air outlets (6) in each of the air passages (8) is the same.

9. The contactless assembly auxiliary device according to claim 1, characterized in that, There are 4 clamping surfaces (7).

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