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Flexible finishing machining device for hole surfaces

A finishing and flexible technology, which is applied in the field of non-free abrasive tool finishing on the surface of the hole, finishing on the surface of the hole, and flexible finishing on the surface of the hole. Due to the large space and the need for a tensioning mechanism, the effects of small footprint, convenient control and uniformity are achieved.

Active Publication Date: 2014-03-05
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantages are: economical and practical, high processing accuracy; it can effectively improve the dimensional accuracy, shape accuracy and reduce the surface roughness value of parts. The disadvantages are: it needs a tensioning mechanism, which is cumbersome and easy to damage; it cannot process curved holes, special-shaped hole; the machine tool occupies a large space and is not easy to move, etc.

Method used

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  • Flexible finishing machining device for hole surfaces
  • Flexible finishing machining device for hole surfaces
  • Flexible finishing machining device for hole surfaces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0014] A hole surface flexible finish processing device, comprising a whetstone stick 1, a bracket 2, a mandrel 3, a cover plate 4 and a top sleeve 5, the bracket 2, the mandrel 3 and the cover plate 4 are connected together by bolts, the Oilstone rod 1 root is covered with top cover 5, is placed in the radial hole on the support, and it can expand and contract along radial hole.

[0015] Put the whole device into the hole to be processed, and start the motor at the same time, and the motor transmits the torque to the bracket 2 through the coupling. After the support 2 rotates and the speed reaches a certain value, the whetstone rod 1 placed in the radial hole of the support 2 acts on the surface of the hole with a certain pressure to achieve smoothing of the surface of the hole. If the automatic feeding device is added, the finishing process of the entire hole surface can be realized.

[0016] The outer diameter and inner diameter of the bracket 2 and the outer diameter of t...

Embodiment approach 2

[0023] A hole surface flexible finish processing device, the outer diameter of the bracket 2 is Φ160mm, the inner diameter of the bracket 2 is Φ120mm, the outer diameter of the mandrel 3 is Φ80mm, and the mesh number of the oilstone rod is 320. The specific steps are as follows:

[0024] 1. Place the hole surface finishing device in the hole to be processed.

[0025] 2. Turn on the power, turn on the governor, and set the speed value of support 2 to 500r / min through the governor.

[0026] 3. Start the flexible finishing device, the support 2 starts to rotate and process the surface of the hole.

[0027] 4. After processing, take out the device.

[0028] The surface roughness value after testing and processing can reach Ra0.3μm.

Embodiment approach 3

[0030] A hole surface flexible finish processing device, the outer diameter of the bracket 2 is Φ160mm, the inner diameter is Φ120mm, the outer diameter of the mandrel 3 is Φ80mm, and the mesh number of the oilstone rod 1 is 320. The specific steps are as follows:

[0031] 1. Place the hole surface finishing device in the hole to be processed.

[0032] 2. Turn on the power, turn on the governor, and set the speed value of support 2 to 800r / min through the governor.

[0033] 3. Start the flexible finishing device, the support 2 starts to rotate and process the surface of the hole.

[0034] 4. After processing, take out the device.

[0035] After testing, the surface roughness value can reach Ra0.25μm.

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Abstract

The invention discloses a flexible finishing machining device for hole surfaces, and belongs to the technical field of finishing machining of mechanical part surfaces. The flexible finishing machining device for the hole surfaces is characterized in that on the basis of the centrifugal principle, machining parameters are controlled externally in real time, the flexibility, automation and controllability of machining are achieved, and the flexible finishing machining device can automatically machine the surfaces of holes such as bent holes, stepped holes and irregularly-shaped holes; according to the flexible finishing machining device for the hole surfaces, the acting force between an oilstone stick and the hole surfaces is adjusted By externally controlling the rotary speed of a motor, so that constant-pressure machining is achieved, and uniformity of machining is guaranteed; a flexible finishing head has certain flexibility, can pass through the bent holes and the irregularly-shaped holes with certain size such as a pipeline with the elliptic cross section, and can pass through the pipeline and achieve finishing machining on the inner surface of the pipeline within the flexible range of the device. The whole flexible finishing machining device for the hole surfaces is simple in structure, small in floor area, convenient to control, and capable of achieving automation easily.

Description

technical field [0001] The invention relates to a hole surface flexible finish processing device, which belongs to the technical field of mechanical parts surface finish processing, and specifically relates to the hole surface non-free abrasive finish processing technology, especially the surface of holes such as curved holes, stepped holes, deep holes, and special-shaped holes. finishing processing. Background technique [0002] The surface quality of parts plays a vital role in the performance and life of mechanical products. Some surface defects are the direct cause of abnormal operation or even paralysis of the machine. In surface finishing of parts, it is relatively difficult to finish the surface of holes, especially the surface of holes such as stepped holes, curved holes, and special-shaped holes. For this reason, how to effectively solve the problem of finishing the hole surface is of great significance for improving the quality of parts and products. Today's hole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B33/02
CPCB24B33/02B24B33/088
Inventor 李秀红李文辉杨胜强侯志燕王志强
Owner TAIYUAN UNIV OF TECH
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