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Precision forging forming device and method for integral knuckle bearing with flange

A joint bearing and forming device technology, applied in forging/pressing/hammer device, forging/pressing/hammering machine, hammer, etc., can solve large machining allowance, large extrusion force, outer ring oil groove and oil hole damage To achieve the effect of ensuring spherical coupling accuracy, balancing stress distribution, and reducing stress concentration

Pending Publication Date: 2020-09-04
FUJIAN LONGXI BEARING (GROUP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The extrusion force generated by the mold compression molding method is large, and the oil groove and oil hole of the outer ring will be damaged or the self-lubricating liner will be damaged during the extrusion process
[0005] (2) Bearings with large wrap angles are prone to instability when receiving pressure, resulting in excessively large cavity ellipse after molding, difficult control of the coupling accuracy of the inner and outer spherical surfaces, and inflexible bearing rotation
[0006] (3) if figure 1 As shown, the wall thickness of the outer ring blank 1' should be designed to be relatively large to prevent the coupling accuracy of the inner and outer spherical surfaces on the non-shrinkage side from being damaged, resulting in a large subsequent machining allowance after shrinkage, and the forming accuracy after stress release and The clearance value will be destroyed
[0007] (4) The conventional mold compression molding method cannot prepare the sealing groove structure

Method used

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  • Precision forging forming device and method for integral knuckle bearing with flange
  • Precision forging forming device and method for integral knuckle bearing with flange
  • Precision forging forming device and method for integral knuckle bearing with flange

Examples

Experimental program
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Effect test

Embodiment 1

[0039] see Figure 4 to Figure 6 As shown, the two end faces of the outer ring of the integral joint bearing in this embodiment are designed with two sealing ring grooves 11, and the inner circle part of the outer ring blank close to the flange and one of the sealing ring grooves have been formed. After the bearing inner ring and outer ring blanks are assembled, they are clamped by the tooling as shown in the figure. The rotating clamping tool includes a first driving shaft 41 and a first driven shaft 42. The first driving shaft 41 is provided with a flange mounting part 411, the inner ring 3 of the joint bearing of the outer ring blank 1 can be sleeved on the first driving shaft 41 and located in the outer ring blank 1 of the joint bearing, and the first driven shaft 42 is provided with a sleeve, so The sleeve can be inserted into the first driving shaft 41 and abut against the inner ring 3 of the joint bearing. The end of the sleeve of the first driven shaft 42 includes an ...

Embodiment 2

[0044] see Figure 8 to Figure 10 As shown, the two end faces of the outer ring of the integral joint bearing in this embodiment are designed with two sealing ring grooves 11', the inner circle part of the outer ring blank close to the flange and one of the sealing ring grooves have been formed, and one of the sealing ring grooves has been formed. Ring 5 has been placed in the sealing ring groove in advance. The rotary clamping tool of this embodiment includes a second driving shaft 71 and a second driven shaft 72, the second driving shaft 71 is provided with a flange mounting part 711, and the inner ring 3' of the joint bearing can be sleeved on the on the second driven shaft 72 and extend into the outer ring blank 1 ′ of the joint bearing fixed on the second driving shaft 71 . The second driven shaft 72 includes a supporting shaft 721 and a sealing ring abutting ring 722, the inner ring 3' of the joint bearing is sleeved on the supporting shaft 721, and the sealing ring abu...

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PUM

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Abstract

The invention discloses a precision forging forming device and method for an integral knuckle bearing with a flange. The part, close to the inner circle of the flange, of an outer ring blank of the knuckle bearing is formed. The precision forging forming device comprises a clamping rotating tool and a plurality of forging hammer heads. The flange of an outer ring of the knuckle bearing can be installed on the clamping rotating tool. An inner ring of the knuckle bearing can be arranged in the outer ring blank in a sleeving manner. The clamping rotating tool clamps the outer ring and the inner ring of the knuckle bearing to rotate. The multiple forging hammer heads are circumferentially distributed outside the clamping rotating tool, are aligned with the outer ring blank of the knuckle bearing respectively and can conduct reciprocating forging hammer on the outer ring blank of the rotating knuckle bearing so as to generate deformation.

Description

technical field [0001] The invention relates to the field of joint bearing manufacturing, in particular to a precision forging forming device and a forming method for an integral joint bearing with a flange. Background technique [0002] At present, integral joint bearings are widely used in aviation, advanced rail transit, new energy equipment, and heavy-duty vehicles. They have the characteristics of strong carrying capacity, good running stability, high reliability and long life. As the application conditions of bearings become more and more complex, many parts bear large axial loads, so the bearings need to be equipped with flanges to improve the axial bearing capacity and facilitate installation. [0003] Traditional integral spherical plain bearings are formed by compressing the outer ring with a mold. This method processes the inner ring to the finished product size, while the outer ring blank and the cylindrical diameter of the inner hole are slightly larger than the...

Claims

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Application Information

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IPC IPC(8): B21J7/16B21J13/08B21J13/00
CPCB21J7/16B21J13/08B21J13/00
Inventor 王兆昌刘文水林瑞宗洪艳平
Owner FUJIAN LONGXI BEARING (GROUP) CO LTD
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