CN2218051Y

CN2218051Y - Sand band grinder

Info

Publication number: CN2218051Y
Application number: CN 95208141
Authority: CN
Inventors: 金有道; 李仁旺
Original assignee: Wuhan Polytechnic University
Current assignee: Wuhan Polytechnic University
Priority date: 1995-04-05
Filing date: 1995-04-05
Publication date: 1996-01-24
Anticipated expiration: 2005-04-05

Abstract

The utility model provides a new chain-typed abrasive belt and improves an existing abrasive belt grinding machine, composed of a driving wheel, a back pressure belt, a supporting wheel, a feed working table, etc. The utility model is characterized in that the utility model is provided with a chain-typed abrasive belt, a vibration working table, a vibration exciter, and a mold pressure plate composed of a roller, a rolling bearing and a frame. The difficult problems that an existing abrasive belt can not be sharpened and can not be repaired and the service life is short are effectively solved; the grinding advantages of the abrasive belt and an abrasive wheel at present are combined, and a vibration grindingprocessing mode is provided; the efficiency is high, and the grinding surface has good quality; simultaneously, the phenomena that some ductile material is ground, the grinding device is blocked, etc. are reduced to occur.

Description

Abrasive belt grinding machine

The utility model provides a kind of novel chain type abrasive band and existing abrasive belt grinding machine has been improved.

Abrasive belt grinding machine is simple in structure, cost is low, but almost can the various profiles of grinding and the workpiece of precision and material, its outstanding original advantage and application prospect is arranged; In modern industry, sbrasive belt grinding has been taken as a kind of indispensable processing method of equal importance with wheel grinding.

At present, the abrasive band is abrasive particle to be bonded at the grinding carried out of making on the pliability materials such as paper, cloth and a kind of banded instrument of polishing with binding agent, is a kind of main and higher form of coated abrasive tool; Basic composition is: base material, abrasive material and binding agent, and as shown in figure 13,29 is base material; 30 is primer; 31 for covering glue; 32 is abrasive material; 33 is the base material treatment agent.The life-span in this abrasive band is very short, generally has only a few hours, and can not dressing and can not repair; In addition, abrasive band manufacturing process complexity, China also mainly relies on the external production line of introduction to satisfy own needs.

In sbrasive belt grinding, the grinding motion form is simple, sbrasive belt grinding campaign and workpiece feed motion are generally only arranged, on grinding workpiece surface, occur leading mill line easily and, have a strong impact on grinding surface quality etc. along some direction mill line in-depth (promptly producing groove mark) phenomenons.In addition, press at present in the sbrasive belt grinding of nog plate formula, the pressure nog plate of application is a surface plate, is sliding friction between it and the abrasive band, and frictional force is big, and heating is serious, and the back side, abrasive band is worn easily prematurely.

The purpose of this utility model be for overcome present abrasive belt grinding machine medium sand tape lifetime short, can not dressing, can not repair and press the big shortcoming of force of sliding friction between nog plate and the abrasive band, eliminate grinding skin mill line in-depth phenomenon simultaneously, improve grinding surface quality.

The utility model provides a kind of novel chain type abrasive band, presses nog plate and shaking table, solves the problems referred to above that existing abrasive band exists effectively.

Be described in detail the utility model below in conjunction with accompanying drawing.

Fig. 1---the utility model general construction master looks schematic diagram.

Fig. 2---the utility model general construction schematic perspective view.

Fig. 3---embodiment 1 synchronous belt type chain type abrasive band and back pressure band schematic diagram.

Fig. 4---embodiment 2 chain type abrasive band structural representations.

Fig. 5---embodiment 3 key formula abrasive band structural representations.

Fig. 6---embodiment 4 chain type abrasive band structural representations.

Fig. 7---press the nog plate master to look schematic diagram.

Fig. 8---press the nog plate schematic top plan view.

Fig. 9---shaking table is looked up schematic perspective view.

Figure 10---feeding workbench schematic top plan view.

Figure 11---feeding workbench elevational schematic view.

Figure 12---guide rail schematic perspective view.

Figure 13---existing abrasive band structural representation.

The utility model as shown in Figure 1, mainly by driving wheel 1, chain type abrasive band 2, back pressure band 3, Bogie wheel 4, pressure nog plate 5, bogie wheel 6, shaking table 8, Feed table 9, vibrator 10, the composition such as guide rail 11.

The utility model is characterized in that having: links to each other with bogie wheel with driving wheel, and by mill The chain type abrasive band that the carrier of bar, the abrasive stick seat of settling abrasive stick and binding abrasive stick seat forms; By roller, Be placed in being positioned on the chain type abrasive band of system framework of the rolling bearing at roller two ends and rigid bearing The pressure nog plate of side; By the workbench that is positioned at the workpiece below and the gear that is consolidated in the workbench bottom surface The shaking table that piece and roller form; Be installed in the vibrator on the Feed table face.

Chain type abrasive band in the utility model, the carrier that it is characterized in that the chain type abrasive band are various biographies Moving band or special band.

When adopting flat belt formula chain type abrasive band, can not want back pressure band 3; In addition, can also not want driving wheel 1, be driving wheel and change bogie wheel 6.

The utility model embodiment 1, see Fig. 3, adopt synchronous belt type chain type abrasive band and back pressure band forms, two intermeshing synchronous band forms are made in chain type abrasive band 2 among Fig. 1 (or Fig. 2) and back pressure band 3, and one is chain type abrasive band (12,13,14), one is back pressure band 15, can have than small gap between their flank, but the gear tip clearance slit is minimum or do not have a slit in when engagement.Abrasive stick 13 can be bonded on the abrasive stick seat 14 with resin etc., and abrasive stick seat 14 adopts riveted joint or bolt to be fixed on the carrier 12 (can be various driving-belts such as synchronous band, flat belt, V-belt).

Embodiment 2, see Fig. 4, carrier 12 among Fig. 3 is made specially be with 16 synchronously, offer dovetail groove in a side that does not have tooth, and abrasive stick seat 17 can directly be inserted in the dovetail groove.

Embodiment 3, see Fig. 5, have the abrasive stick seat 17 of abrasive stick 13, can directly be inserted in the dovetail groove of base 18, and base 18 is fixed on the carrier 12 (can be to be with synchronously or flat belt).

Embodiment 4, see Fig. 6, carrier 12 among Fig. 3 is made by what synchronous band and flat belt combined specially be with 19, have the abrasive stick seat 14 of abrasive stick 13, can adopt riveted joint or bolt to be fixed in special being with on 19.

Press nog plate 5, see Fig. 7, Fig. 8, press nog plate to form by roller 20, bearing 21 and framework 22.Bearing 21 is settled at the two ends of roller 20, is interference fit between roller 20 and the bearing 21, and bearing 21 is fixed on the framework 22; Press nog plate to be positioned at back pressure band or top, chain type abrasive band, see Fig. 1, Fig. 2, roller 20 rotates around self axis under the frictional force effect in back pressure band or chain type abrasive band, sliding friction between pressure nog plate and abrasive band when rolling friction has substituted existing pressure nog plate sbrasive belt grinding between roller 20 and the bearing 21.

Shaking table 8 is seen Fig. 9, is made up of workbench 23, block 24 and roller 25, and workpiece 7 clampings are on workbench 23; Block 24 is fixed in the bottom surface of workbench 23, and the exciting force that vibrator 10 produces acts on the block 24; Roller 25 be fixed on workbench 23 below, roll along the guide rail on the feeding workbench 9 26, can be two pairs, three equities.

Feeding workbench 9 is seen Figure 10, Figure 11, is made up of guide rail 26, supporting plate 27, vibrator 10 and roller 28, guide rail 26 be fixed in supporting plate 27 above, vibrator 10 be fixed on supporting plate 27 above, roller 28 is fixed on the bottom surface of supporting plate 27, rolling along guide rail 11, can be two pairs, three equities.

The operating principle of complete machine is: driving wheel 1 rotates, and drives 2 motions of chain type abrasive band; Normal grinding force is by pressing nog plate 5 to put on the workpiece 7 by back pressure band 3 and chain type abrasive band 2; Be installed under the exciting force effect that vibrator on the feeding workbench 9 10 produces, clamping has the roller 25 below the shaking table 8 of workpiece 7, moves along the guide rail on the feeding workbench 9 26, drives shaking table 8 and workpiece 7 and vibrates back and forth; Roller 28 below the feeding workbench 9 moves along guide rail 11, finishes the grinding and feeding motion with shaking table 8 and workpiece 7.

Because the workpiece motion s speed that vibration causes has been full of randomness, and fluctuation range is big, abrasive particle is increased with positive rake angle cutting probability, cutting power improves, and can form complicated mill line during grinding, reduces grinding surface roughness greatly; In addition, the defective that abrasive band and workpiece motion s speed may be on the low side in the time of can also remedying grinding, when also helping preventing some toughness materials of grinding, phenomenons such as grinding tool obstruction take place.

When abrasive stick on the chain type abrasive band weares and teares rust, can be with carrying out dressing with the similar method of emery wheel dressing; When abrasive stick exhausts, replace it with new abrasive stick, just obtain new chain type abrasive band.

Adopt chain type abrasive band that the utility model provides, press nog plate and shaking table, can effectively solve the abrasive band life-span short, can not dressing, can not repair, force of sliding friction reaches problems such as grinding skin mill line in-depth greatly.

Claims

1. an abrasive belt grinding machine is made up of driving wheel, bogie wheel, feeding workbench, abrasive band etc., it is characterized in that having:

(a) link to each other with bogie wheel with driving wheel, and the chain type abrasive band of forming by abrasive stick, the abrasive stick seat of settling abrasive stick and the carrier that is connected the abrasive stick seat;

(b) the pressure nog plate of forming by the framework of roller, the rolling bearing that is placed in the roller two ends and rigid bearing that is positioned at top, chain type abrasive band;

(c) by the workbench that is positioned at workpiece below be fixed in the block of workbench bottom surface and the shaking table that roller is formed;

(d) be installed in vibrator on the feeding work top.

2. abrasive belt grinding machine according to claim 1, the carrier that it is characterized in that described chain type abrasive band are various driving-belts or special band.