Electric spindle assembling tool for pre-loading elastic loads

An assembly tooling and preloading technology, which is applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems such as the axial and radial runout of the electric spindle that is difficult to tighten, and achieve standardized operations, strong versatility, and reduced effect of error

Pending Publication Date: 2018-12-07
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above-mentioned defects in the prior art, the technical problems to be solved by the present invention are how to solve the problem of difficult tightening of the front and rear end bearing assemblies of t

Method used

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  • Electric spindle assembling tool for pre-loading elastic loads
  • Electric spindle assembling tool for pre-loading elastic loads
  • Electric spindle assembling tool for pre-loading elastic loads

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Embodiment Construction

[0036] The following describes a preferred embodiment of the present invention with reference to the accompanying drawings to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0037]In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0038] like figure 1 As shown, the present invention provides an electric spindle assembly tool utilizing a preloaded elastic load, including a b...

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Abstract

The invention discloses an electric spindle assembling tool for pre-loading elastic loads. The electric spindle assembling tool comprises a base and a spindle positioning device, an auxiliary clampingdevice, a pre-loading device, a fixing device and a measuring device, wherein the base is used for bearing an electric spindle to be assembled; the spindle positioning device is arranged below the base in a movable connection mode, and is used for positioning the electric spindle; the two ends of the auxiliary clamping device are installed on the fixing device, and is used for preventing the electric spindle from tilting in the assembling process; the two ends of the pre-loading device are installed on the fixing device, and is used for applying an elastic load; the measuring device is arranged on the base, and is used for detecting the axial and radial jumping of the electric spindle. According to the electric spindle assembling tool for pre-loading elastic loads, the problem that the bearing is difficult to tighten after the bearing is cooled in a thermal assembling mode is solved, the positioning of the electric spindle is realized, so that the assembling precision and the assembling efficiency are improved, and the standardized operation can be realized.

Description

technical field [0001] The invention relates to the technical field of auxiliary assembly tools, in particular to a pre-loaded electric spindle assembly tool. Background technique [0002] The main shaft of the high-speed electric spindle and the front and rear end bearing components adopt the interference thermal assembly method, heat the front and rear end bearing components, heat fit them on the main shaft, and then tighten the front and rear end nuts to realize the axial positioning of the bearing components. However, due to the free cooling of the bearing assembly after it is assembled on the main shaft, there will be a gap between the shoulder and the main shaft after cooling. In order to achieve the axial positioning of the bearing assembly, a large torque is required to eliminate the gap when tightening the nut, and it is difficult to quantitatively control the tightening torque. The static stiffness of the main shaft cannot be precisely controlled. If the static st...

Claims

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Application Information

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IPC IPC(8): B23P19/02
CPCB23P19/02
Inventor 金隼田昂凌卫国张继昌房昕宇陈坤刘顺
Owner SHANGHAI JIAO TONG UNIV
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