Tool for improving press-fitting location degree of bolt

Abstract

The utility model discloses a tool for improving the press-fitting location degree of a bolt. The tool comprises a bottom plate arranged on an operation table. The top of the bottom plate is fixedly connected with a base; the base is fixed on an operation table through positioning screws, the whole base is arranged to be a base with a U-shaped section, the center of the base is of a cavity structure, a press-fitting flange is placed in the cavity, and the edge of the flange and a flange connecting hole in the flange are arranged on the top face of the base in a supported mode. Guide pipe cavities which are uniformly distributed are formed in the periphery of the cavity of the base; a guide tube is arranged in each guide tube cavity in a sleeving manner; and movable gaskets which are vertically and symmetrically arranged are fixedly connected to the outer side wall of the guide pipe. The bolt press-fitting device is simple in structure and high in positioning stability, quick positioning and guide press-in of a bolt in the bolt press-fitting process can be effectively guaranteed through matched use of the arranged guide pipe cavity, the guide pipe and the movable gasket, it is guaranteed that the bolt is pressed by keeping a perpendicular angle relative to a flange face, and the phenomenon of malposition of the bolt in the press-fitting process is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical manufacturing and mainly relates to a tool for improving the position accuracy of bolt press-fitting. Background Art

[0002] Flanges are used as connectors, and flange connection holes are generally provided on them. When flanges are connected, the connector bolts are usually inserted into the flange connection holes manually for locking. When this connection method is used, the flange bolts and bolts are generally clearance-fitted, and relative displacement is easy to occur between the two, resulting in poor connection accuracy. Therefore, it is necessary to use a press-fit device to press the bolts into the flange connection holes and make the two have an interference fit. At present, before the product is press-fitted, the chamfer of the bolt and the chamfer of the bolt hole are in contact with each other, and gravity is used to keep the bolts and the flange surface at a vertical angle for press-fitting; however, this contact surface is extremely small, and the product needs to be rotated during the press-fitting process, which eventually causes the bolt press-fit to tilt, and the bolt press-fitting is prone to misalignment, resulting in poor product positioning, quality problems during assembly, and scrap, which seriously affects the production and assembly efficiency, is time-consuming and labor-intensive, causes waste, and greatly increases the production and assembly costs. Utility Model Content

[0003] The utility model aims to provide a tool for improving the position accuracy of bolt press-fitting, which can solve the problem of bolt press-fitting tilting and easy dislocation in the process of bolt press-fitting in the background technology.

[0004] problem.

[0005] In order to achieve the purpose of this utility model, the technical solution adopted is as follows:

[0006] A tool for improving the position accuracy of bolt press-fitting, comprising a bottom plate arranged on an operating table; a base is fixedly connected to the top of the bottom plate; the base is fixed to the operating table by positioning screws, the base as a whole is arranged as a U-shaped seat with a cavity structure at the center, a press-fit flange is placed in the cavity, and the flange edge and the flange connection hole thereon are arranged on the top surface of the base; uniformly distributed guide tube cavities are arranged around the periphery of the cavity of the base; a guide tube is sleeved in each of the guide tube cavities; a movable gasket arranged symmetrically in vertical direction is fixedly connected to the outer wall of the guide tube; a bolt hole connected to the guide tube is arranged at the top; a bolt for press-fitting is arranged in the bolt hole; a pressure head for driving downward pressure is arranged at the top of the bolt.

[0007] The bottom of the movable gasket is fixedly connected to the top of the bottom plate.

[0008] A vertically arranged spring is arranged inside the moving gasket.

[0009] The inner diameter of the guide tube is larger than the outer diameter of the bolt, and can limit the outer diameter of the bolt.

[0010] The bolt holes and the flange connection holes are arranged correspondingly up and down.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure and high positioning stability, and through the coordinated use of the set guide tube cavity, guide tube and movable gasket, it can effectively ensure the rapid positioning and guided pressing of the bolts during the bolt pressing process, so as to ensure that the bolts are pressed at a vertical angle relative to the flange surface, avoid the phenomenon of bolt pressing misalignment, improve production assembly efficiency, and save production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the utility model after being pressed down.

[0014] In the figure: 1, bottom plate, 2, base, 3, positioning screw, 4, flange, 5, guide tube cavity, 6, guide tube, 7, movable gasket, 8, bolt hole, 9, bolt, 10, pressure head, 11, spring. DETAILED DESCRIPTION

[0015] The utility model is described in conjunction with the accompanying drawings.

[0016] like Figure 1-Figure 2 The tooling shown in the figure for improving the position accuracy of bolt press-fitting comprises a bottom plate 1 arranged on an operating table; a base 2 is fixedly connected to the top of the bottom plate 1; the base 2 is fixed to the operating table by positioning screws 3, and the base 2 and the base 1 can be integrated here, which increases the overall stability of the tooling, and the connection method using screws also facilitates the overall disassembly of the tooling, and is flexible to use; the base 2 is overall configured as a U-shaped seat with a cavity structure at the center, a press-fit flange 4 is placed in the cavity, and the edge of the flange 4 and the flange connection hole thereon are arranged on the top surface of the base 2; uniformly distributed guide tube cavities 5 are arranged around the periphery of the cavity of the base 2; a guide tube 6 is sleeved in each of the guide tube cavities 5; the outer side of the guide tube 6 A vertically symmetrically arranged movable gasket 7 is fixedly connected to the wall; a vertically arranged spring 11 is arranged inside the movable gasket 7; the bottom of the movable gasket 7 is fixedly connected to the top of the base plate 1; here, since the bottom of the spring 11 is also fixedly connected to the top of the base plate 1, when the spring 11 is compressed, the guide tube 6 can be driven to move up and down in the guide tube cavity 5; a bolt hole 8 connected to the guide tube 6 is arranged at the top; a bolt 9 for press-fitting is arranged in the bolt hole 8; the inner diameter of the guide tube 6 is larger than the outer diameter of the bolt 9, and the outer diameter of the bolt 9 can be limited; the bolt hole 8 and the flange connection hole are arranged correspondingly up and down; the top of the bolt 9 is provided with a pressure head 10 for driving downward pressure.

[0017] When the utility model is in use, the bottom plate 1 and the base 2 are connected together using the positioning screws 3 and installed on the operating table. The bottom plate 1 supports the spring 11 to bounce the movable gasket 7 and the guide tube 6. After the bolt 9 is placed into the connecting hole of the flange 4, the inner diameter of the guide tube 6 will limit the outer diameter of the bolt 9. At the same time, the outer diameter of the guide tube 6 cooperates with the guide tube cavity 5. When the pressure head 10 presses the bolt 9, the guide tube 6 will move down with the bolt 8, and can guide the bolt 9 during the press-fitting process to ensure that the bolt is pressed at a vertical angle relative to the flange surface, thereby avoiding the phenomenon of bolt press-fitting misalignment, improving production and assembly efficiency, and saving production costs.

[0018] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A tool for improving the position accuracy of bolt press-fitting, comprising a base plate (1) arranged on an operating table; wherein: The top of the bottom plate (1) is fixedly connected to a base (2); the base (2) is fixed to the operating table by positioning screws (3); the base (2) is configured as a U-shaped seat in cross section, the center of which is a cavity structure, a press-fit flange (4) is placed in the cavity, and the edge of the flange (4) and the flange (4) connection hole thereon are arranged on the top surface of the base (2); uniformly distributed guide tube cavities (5) are arranged around the periphery of the cavity of the base (2); a guide tube (6) is sleeved in each of the guide tube cavities (5); a vertically symmetrically arranged movable gasket (7) is fixedly connected to the outer wall of the guide tube (6); a bolt hole (8) connected thereto is arranged at the top of the guide tube (6); a bolt (9) for press-fitting is arranged in the bolt hole (8); a pressure head (10) for driving downward pressing is arranged at the top of the bolt (9).

2. The tool for improving the bolt press-fitting position according to claim 1 is characterized by: The bottom of the movable gasket (7) is fixedly connected to the top of the bottom plate (1).

3. The tool for improving the bolt press-fitting position according to claim 1 is characterized by: A vertically arranged spring (11) is provided in the movable gasket (7).

4. The tool for improving the bolt press-fitting position according to claim 1 is characterized by: The inner diameter of the guide tube (6) is greater than the outer diameter of the bolt (9), and can limit the outer diameter of the bolt (9).

5. The tool for improving the bolt press-fitting position according to claim 1 is characterized by: The bolt hole (8) and the flange (4) connection hole are arranged correspondingly up and down.

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