Abrégé

The present invention relates to a one-circle two-chamfer deburring machine and a deburring method comprising the following steps after starting up: (1) The upper wheelhead motor drives the upper grinding belt to rotate horizontally (2) the lower wheelhead motor drives the lower grinding belt to rotate horizontally and (3) when a deburred workpiece goes through a passage formed by the active feeding roller row and the upper grinding belt, an upper abrasive block elastically contacts surface of the workpiece and, under the drive of the upper wheelhead motor and the upper active drum, polishes and deburrs the front side of the workpiece twice; the lower abrasive block elastically contacts the surface of the workpiece and, under the drive of the lower wheelhead motor and the lower active drum, polishes and deburrs the back side of the workpiece twice.

Classes IPC  ?

• B24B 21/00 - Machines ou dispositifs utilisant des bandes de meulage ou de polissageAccessoires à cet effet
• B24B 21/12 - Machines ou dispositifs utilisant des bandes de meulage ou de polissageAccessoires à cet effet pour meuler des surfaces planes munis d'une roue de contact ou d'un tambour qui pousse la courroie contre la pièce à meuler
• B24B 27/00 - Autres machines ou dispositifs à meuler
• B24D 11/00 - Caractéristiques de construction des matériaux abrasifs flexiblesCaractéristiques particulières de la fabrication de ces matériaux
• B24B 9/00 - Machines ou dispositifs pour meuler les bords ou les biseaux des pièces ou pour enlever des bavuresAccessoires à cet effet

Abrégé

An air valve dedicated for use in a deburring machine negative-pressure conveyor platform, an automatic control method therefor, a vacuum working platform (8) applying the air valve, and a deburring machine comprising the vacuum working platform (8). The air valve (7) is an air valve that is dedicated for use in the deburring machine negative-pressure conveyor platform, opened when a negative pressure air suction hole on the deburring machine negative pressure conveyor platform is covered by a workpiece, and closed when the workpiece is absent. Arranged at a junction of an upper valve body (1) and a lower valve body (3) is a flexible valve core piece (2) used for closing a passage between an upper valve body cavity and a lower valve body cavity, where the flexible valve core piece (2), when not in working state, remains in a perpetually opened state. The air valve solves the problem of vacuum suction automatic distribution, uses a negative pressure airflow of self to implement automatic opening or closing of the negative pressure air suction hole in the deburring machine negative-pressure conveyor platform, has the advantages of a simple structure, automatic control with ease, reliable automatic control, and great effects, and increases the force of vacuum suction on the workpiece, thus allowing for extended range of workpiece processing, facilitated processing of small workpieces, reduced energy consumption, and reduced processing costs.

Classes IPC  ?

• B24B 9/00 - Machines ou dispositifs pour meuler les bords ou les biseaux des pièces ou pour enlever des bavuresAccessoires à cet effet
• F16K 31/12 - Moyens de fonctionnementDispositifs de retour à la position de repos actionnés par un fluide

Abrégé

A deburring method. An upper grinding head motor (11) drives an upper abrasive belt (7) into horizontal rotation by driving an upper active drum (6). A lower grinding head motor (20) drives a lower abrasive belt (4) into a horizontal rotation by driving a lower active drum. When a workpiece-to-be-deburred passes a passage constituted by an active feed roller row (14) and the upper abrasive belt (7), for each rotation by the upper abrasive belt (7), under the action of an upper abrasive pressure wheel set (17), an upper abrasive block (5) fixed on the upper abrasive belt (7), where the upper abrasive block (5) is flexibly in touch with a surface of the workpiece and is driven by the upper grinding head motor (11) and by the upper active drum (6), twice completes polishing and deburring of the obverse side of the workpiece, while at the same time, for each rotation by the lower abrasive belt (4) arranged beneath the workpiece and driven by the lower grinding head motor (20) and by the lower active drum, under the pressing action of a lower abrasive belt pressure wheel set (21), a lower abrasive block on the lower abrasive belt (4), where the lower abrasive block is flexibly in touch with a surface of the workpiece and is driven by the lower grinding head motor (20) and by the lower active drum, twice completes polishing and deburring of the reverse side of the workpiece. The method is simple and convenient to operate, of great reliability, and allows for improved deburring efficiency. Also disclosed are a deburring machine abrasive belt and a deburring machine that deburrs twice per rotation.

Classes IPC  ?

• B24B 21/12 - Machines ou dispositifs utilisant des bandes de meulage ou de polissageAccessoires à cet effet pour meuler des surfaces planes munis d'une roue de contact ou d'un tambour qui pousse la courroie contre la pièce à meuler
• B24D 13/10 - Meules dont le corps comporte des parties flexibles au travail, p. ex. meules souples de polissageAccessoires pour le montage de ces meules travaillant par leur périphérie comprenant des assemblages de brosses