Coaxial reverse interference fit mounting device, mechanical equipment assembling system and mounting method

Abstract

The invention provides a coaxial reverse interference fit installation device, a mechanical equipment assembly system and an installation method, and belongs to the technical field of mechanical manufacturing precision assembly. The problems that an existing coaxiality guarantee installation tool is low in precision, poor in flexibility and complex in operation are solved. The tool comprises a mounting tool, a pull pin and a mandrel, the mandrel is arranged in the mounting tool, the pull pin is mounted on the outer side of the mandrel outside the mounting tool, a first workpiece is mounted at the bottom of the mandrel, a second workpiece is arranged above the first workpiece, the first workpiece is in threaded connection with the mandrel, and a handle is mounted at the top of the mandrel. The lower shaft section of the mandrel, an inner hole of the second workpiece and the inner diameter of the installation tool are the same. The device is mainly used for assembling a large complex shell.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical manufacturing precision assembly, and in particular relates to a coaxial reverse interference fit installation device, a mechanical equipment assembly system and an installation method. Background Art

[0002] In the modern machinery manufacturing industry, coaxiality is an important indicator to measure the accuracy of the relative positions of multiple components on the same axis. Especially in the fields of large-scale machinery and equipment, precision instrument manufacturing, aerospace, etc., the precise control of coaxiality has a vital impact on the performance, stability and service life of the equipment. However, the commonly used coaxiality assurance installation tools often have problems. Although they meet the needs of most industries to a certain extent, they still need to be improved in terms of accuracy, flexibility, and ease of operation. These problems are particularly prominent when facing the assembly of large and complex shell components and products with high coaxiality requirements. Summary of the invention

[0003] In view of this, the present invention aims to propose a coaxial reverse interference fit installation device, a mechanical equipment assembly system and an installation method to solve the problems of low precision, poor flexibility and complex operation of existing coaxiality assurance installation tools.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A coaxial reverse interference fit installation device comprises an installation tool, a pull pin and a core shaft, wherein the core shaft is arranged in the installation tool, a pull pin is installed on the outer side of the core shaft outside the installation tool, a workpiece one is installed at the bottom of the core shaft, and a workpiece two is arranged above the workpiece one.

[0006] Furthermore, the workpiece 1 is connected to the core shaft through threads.

[0007] Furthermore, a handle is installed on the top of the core shaft.

[0008] Furthermore, the shaft section below the core shaft, the second inner hole of the workpiece and the inner diameter size of the installation tool are the same.

[0009] A mechanical equipment assembly system comprises a coaxial reverse interference fit installation device.

[0010] A method for installing a coaxial reverse interference fit installation device comprises the following steps:

[0011] Step 1: First, connect the workpiece 1 to the mandrel;

[0012] Step 2: Lift workpiece 1 by pulling the handle upwards to ensure that the holes of workpiece 1 and workpiece 2 are on the same axis;

[0013] Step 3: Ensure the interference fit between workpiece 1 and workpiece 2 by pulling out the pin.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention cooperates with the thread of the part under the core shaft of the tool, and installs the part in reverse from the outside to ensure the ease of clamping and use. The function of the pull pin in the tool makes the workpieces have an interference fit to ensure coaxiality, and accurately controls the two key states of mechanical assembly.

[0016] 2. The coaxiality-guaranteed assembly tool of the present invention is suitable for large and complex housings of different specifications, different materials, and assembled from multiple parts, and has strong versatility.

[0017] 3. The present invention is suitable for assembling large and complex shell parts, especially for installation on the surface of parts. It only needs to be operated from the outside of the workpiece to achieve rapid and accurate assembly of large and complex shell parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. 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 accompanying drawings:

[0019] Figure 1 It is a schematic diagram of workpiece 1 and workpiece 2 in a coaxial reverse interference fit installation device according to the present invention;

[0020] Figure 2 It is a schematic diagram of workpiece 1 and workpiece 2 in a coaxial reverse interference fit installation device according to the present invention.

[0021] 1-workpiece one, 2-workpiece two, 3-installation tool, 4-pulling pin, 5-mandrel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0023] See also Figure 1-2To describe this embodiment, a coaxial reverse interference fit installation device includes an installation tool 3, a pull pin 4 and a core shaft 5, wherein the core shaft 5 is arranged in the installation tool 3, and the pull pin 4 is installed on the outer side of the core shaft 5 located outside the installation tool 3, a workpiece 1 is installed on the bottom of the core shaft 5, a workpiece 2 2 is arranged above the workpiece 1, the workpiece 1 is connected to the core shaft 5 by threads, a handle is installed on the top of the core shaft 5, and the shaft section below the core shaft 5, the inner hole of the workpiece 2 2 and the inner diameter of the installation tool 3 are the same.

[0024] Since there is no support at the bottom of workpiece 1 and the coaxiality of the hole above workpiece 2 and workpiece 1 must be ensured, the bottom of the core shaft 5 is connected to the workpiece 1 through a thread, and the shaft section at the bottom of the core shaft 5, the inner hole of workpiece 2 and the inner diameter of the installation tool 3 are the same, ensuring that the operator applies force from the outside to achieve the assembly of workpiece 1 and workpiece 2, and then through the action of the pull pin 4, the interference fit of workpiece 1 and workpiece 2 is ensured to meet the coaxiality requirement. The device installs the parts from the outside in reverse by threading the bottom of the core shaft 5 in the installation tool 3 with the workpiece 1, ensuring the ease of clamping and use, and the action of the pull pin 4 makes the interference fit between workpiece 1 and workpiece 2 to ensure coaxiality, and accurately controls the two key states of mechanical assembly, and the installation device is suitable for large and complex shells of different specifications, different materials, and multiple parts, and has strong versatility. When facing the assembly of large and complex shell parts, especially the installation on the surface of the parts, it only needs to operate from the outside of the workpiece to achieve fast and accurate assembly of large and complex shell parts.

[0025] Furthermore, a mechanical equipment assembly system includes a coaxial reverse interference fit installation device, which can be used for coaxial installation of parts in the mechanical equipment assembly system.

[0026] Furthermore, a method for installing a coaxial reverse interference fit installation device comprises the following steps:

[0027] Step 1: First, connect the workpiece 1 with the mandrel 5;

[0028] Step 2: Lift workpiece 1 by pulling the handle upwards to ensure that the holes of workpiece 1 and workpiece 2 are on the same axis;

[0029] Step 3: Ensure the interference fit between workpiece 1 and workpiece 2 by pulling out pin 4.

[0030] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well.

Claims

1. A coaxial reverse interference fit installation device, characterized in that: The invention comprises an installation tool (3), a pull pin (4) and a mandrel (5), wherein the mandrel (5) is arranged in the installation tool (3), the pull pin (4) is installed on the outer side of the mandrel (5) outside the installation tool (3), a workpiece 1 (1) is installed at the bottom of the mandrel (5), and a workpiece 2 (2) is arranged above the workpiece 1 (1).

2. A coaxial reverse interference fit installation device according to claim 1, characterized in that: The workpiece 1 (1) is connected to the core shaft (5) via threads.

3. The coaxial reverse interference fit installation device according to claim 1, characterized in that: A handle is installed on the top of the core shaft (5).

4. The coaxial reverse interference fit installation device according to claim 1, characterized in that: The shaft section below the mandrel (5), the inner hole of the second workpiece (2) and the inner diameter size of the installation tool (3) are the same.

5. A mechanical equipment assembly system, characterized in that: The invention comprises a coaxial reverse interference fit installation device as described in any one of claims 1 to 5.

6. A method for installing a coaxial reverse interference fit installation device according to any one of claims 1 to 5, characterized in that: It includes the following steps: Step 1: First, connect the workpiece 1 (1) to the mandrel (5); Step 2: Lift workpiece 1 (1) by pulling the handle upwards, ensuring that the holes of workpiece 1 (1) and workpiece 2 (2) are on the same axis; Step 3: Ensure the interference fit between workpiece 1 (1) and workpiece 2 (2) by pulling out the pin (4).

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