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A kind of automatic polishing system and polishing method

A technology of control system and grinding head, which is applied in robot polishing system and polishing field, can solve the problems of high cost, high labor intensity, lack of flexibility, etc., achieve the requirements of reducing repeat positioning accuracy, improve polishing efficiency, and have simple and reliable structure

Active Publication Date: 2017-09-12
佛山市顺德区容声塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the manual polishing method using ordinary grinding machines is labor-intensive, wastes time and resources, and the processing yield is low; the method of using special polishing machine tools to polish the surface of injection mold cavity has poor versatility and is only suitable for mass production of a single product. To meet the diversity of products; the cost of using CNC polishing machine tools to polish the surface of injection mold cavity is relatively high, and because of the different angles of the mold cavity surface, the cutting direction of CNC machine tools can only be along the Z direction, which can only be used for plane polishing. Therefore, compared with industrial robots, it lacks flexibility and poor applicability
[0004] At present, industrial robots have been used in many fields, but there are always difficulties in mold cavity polishing, mainly due to the low repeat positioning accuracy of industrial robots (often ±0.1mm-±0.3mm), resulting in the robot being in the process of moving or replacing After the tool is polished, the previous action position cannot be completely repeated, and the force applied by the abrasive tool on the surface of the mold cavity cannot be guaranteed to be consistent, resulting in inconsistent polishing effects and failing to meet the polishing quality requirements
At present, industrial robots with high repeat positioning accuracy are extremely expensive, which affects the popularity of robots in mold polishing automation.

Method used

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  • A kind of automatic polishing system and polishing method
  • A kind of automatic polishing system and polishing method
  • A kind of automatic polishing system and polishing method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] refer to figure 1 In this embodiment, an automatic polishing system includes a robot 10, a polishing head 20 and a polishing control system. The robot 10 has a mechanical arm 11, the polishing head 20 is located on the front end of the mechanical arm 11, and the polishing head 20 can be controlled by a constant force control device. Telescopically and floatingly installed on the front end of the mechanical arm 11, in addition, the automatic polishing system can also be equipped with a safety lock and a safety grating, and when someone breaks in by mistake, the whole unit will stop and give an alarm. Wherein, the structure of the constant force control device 60 can refer to figure 2 and image 3 , which includes a base 61, a guide groove 62 provided on the base 61 axially along the base 61, a slider 63 that slides with the guide groove 62, and a constant force elastic member 64 that drives the slider 63 to slide along the guide groove 62 The grinding head 20 is fixed...

Embodiment 2

[0046] Different from the above-mentioned embodiments, the automatic polishing system and polishing method in this embodiment can be applied to the polishing process of the cavity surface of the injection mold, and can also be applied to the polishing process of CNC machining tool marks on a large-area planar workpiece. The application range of the automatic polishing system has been expanded. When it is applied to the polishing process of CNC machining tool mark on a large plane workpiece, the force exerted by the grinding head on the surface of this type of workpiece should be relatively large, and the force provided by the constant force coil spring 642 may not be sufficient, so refer to Figure 4 , in this embodiment, an air spring 66 located above the slider 63 is installed in the guide groove 62, the axial direction of the air spring 66 is consistent with the sliding direction of the slider 63, and the slider 63 is against the air spring 66, specifically In other words, ...

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Abstract

The invention discloses an automatic polishing system and method. The automatic polishing system comprises a robot, a burnishing head and a polishing control system, wherein the burnishing head is located at the front end of a mechanical arm and is particularly mounted at the front end of the mechanical arm in a telescopic floating manner by virtue of a constant force control device; the constant force control device comprises a base, a guide groove, a sliding block and an elastic part; the burnishing head is fixedly connected with the sliding block and is driven to float in a flexible manner by the sliding block. According to the automatic polishing system, the burnishing head is connected with the mechanical arm of the robot by virtue of the constant force control device, so that the burnishing head can float; furthermore, a burnishing force applied to workpieces by the burnishing head is maintained at a constant value by virtue of a constant force elastic component, so that the whole machining process can be finished in a constant force polishing mode, the shortcoming of inconsistent qualities of polished surfaces caused due to low repeated positioning accuracy of the robot is made up, the requirements on the repeated positioning accuracy of the robot are reduced, the polishing consistency of the surfaces of the workpieces is guaranteed, the machining quality is improved, the rejection rate is decreased, and the polishing efficiency is improved.

Description

technical field [0001] The invention relates to an industrial robot automatic polishing system and a polishing method, in particular to a robot polishing system and a polishing method suitable for polishing the complex cavity surface of an injection mold. Background technique [0002] With the rapid development of high-tech industries such as optics, electronics, communications, aerospace, and medical equipment, the requirements for the surface quality of injection molding products are getting higher and higher, which requires higher and higher requirements for the surface polishing technology of injection mold cavities. At the same time, with the popularization of high-gloss spray-free technology, products with high polishing requirements have shown explosive growth. For mold companies, the processing capacity of the polishing section has become an important factor affecting the mold construction period. In recent years, with the development of modern control technology and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B29/02B24B39/00
CPCB24B29/02B24B39/00
Inventor 王家昌邵振王小新徐佳驹
Owner 佛山市顺德区容声塑胶有限公司