Cyflwyniad byr a disgrifiad dylunio system o'r uned lithro llinol:
◎Linear sliding units are also called linear rails, sliding rails, linear guides, linear sliding rails. They are used in linear reciprocating motion applications. They have a higher rated load than linear bearings, and can bear a certain torque at the same time, which can be used under high load conditions. Realize high-precision linear motion.
Mae'r uned llithro llinellol wedi'i rhannu'n uned llithro llinellol pêl sgwâr, uned llithro llinellol rholer craidd echel ddeuol, ac uned llithro llinellol craidd echel sengl.
Ar y tir mawr, fe'i gelwir yn uned sleidiau llinellol, ac yn Taiwan fe'i gelwir yn gyffredinol yn ganllaw llinellol neu'n sleid llinol.
Swyddogaeth y canllaw mudiant llinol yw cefnogi ac arwain y rhannau symudol i wneud cynnig llinellol cilyddol i gyfeiriad penodol. Yn dibynnu ar natur ffrithiant, gellir rhannu canllawiau cynnig llinellol yn ganllawiau ffrithiant llithro, canllawiau ffrithiant rholio, canllawiau ffrithiant elastig, a chanllawiau ffrithiant hylif.
◎Linear bearings are mainly used in automated machinery, such as machine tools imported from Germany, paper bowl machines, laser welding machines, etc., of course, linear bearings and linear shafts are used together. Linear sliding units are mainly used for accuracy requirements comparison On the high mechanical structure, the slider-makes the movement change from a curve to a straight line. The new guide rail system enables the machine tool to obtain rapid feed speeds. In the case of the same spindle speed, rapid feed is the characteristic of the linear sliding unit. The linear sliding unit is the same as the flat guide rail. It has two basic elements; one as a guide is a fixed element, and the other is a moving element. Since the linear sliding unit is a standard component, it is a machine tool manufacturer. The only thing to do is to process the plane of a mounting rail and adjust the parallelism of the rail. Of course, in order to ensure the accuracy of the machine tool, a small amount of scraping of the bed or column is essential. In most cases, the installation is relatively simple.
Mae'r rheilffordd canllaw fel y canllaw yn ddur caled, sy'n cael ei osod ar yr awyren gosod ar ôl malu dirwy. O'i gymharu â rheiliau canllaw gwastad, mae geometreg trawsdoriadol unedau llithro llinellol yn fwy cymhleth na rheiliau canllaw gwastad. Y rheswm am y cymhlethdod yw bod angen peiriannu rhigolau ar y rheiliau canllaw i hwyluso symud elfennau llithro. Mae siâp a nifer y rhigolau yn dibynnu ar ofynion yr offeryn peiriant. Swyddogaeth wedi'i chwblhau. Er enghraifft: Mae system reilffordd dywys sy'n dwyn grym llinol a moment gwrthdroadol yn cael ei chymharu â rheilen dywys sydd â grym llinellol yn unig. Mae'r dyluniad yn wahanol iawn.
There is no intermediate medium between the moving element and the fixed element of the linear sliding unit, but a rolling steel ball. Because the rolling steel ball is suitable for high{{0}}speed motion, has a small friction coefficient and high sensitivity, it can meet the working requirements of moving parts, such as the tool holder and carriage of the machine tool. The basic function of the fixed element (guide rail) of the linear sliding unit system is like a bearing ring. The bracket for mounting the steel ball is shaped like a "v". The bracket wraps the top and both sides of the rail. In order to support the working parts of the machine tool, a set of linear sliding unit has at least four supports. Used to support large working parts, the number of brackets can be more than four. When the working parts of the machine tool move, the steel balls circulate in the groove of the bracket, and the wear of the bracket is distributed to each steel ball, thereby prolonging the service life of the linear sliding unit. In order to eliminate the gap between the bracket and the guide rail, the preload can improve the stability of the guide rail system and the preload can be obtained. It is to install an oversized steel ball between the guide rail and the bracket. The diameter tolerance of the steel ball is ±20 microns, with 0.5 micron increments. The steel balls are screened and classified and installed on the guide rails respectively. The size of the preload depends on the force acting on the steel balls. If the force acting on the steel ball is too large, the steel ball will withstand the preload for too long, which will increase the movement resistance of the bracket. There is a balance problem here; in order to improve the sensitivity of the system and reduce the movement resistance, the preload must be reduced accordingly, and in order to improve the movement accuracy and the retention of precision, it is required to have sufficient preload negative numbers, which are contradictory two. aspect.
Os yw'r amser gwaith yn rhy hir, mae'r bêl ddur yn dechrau gwisgo, ac mae'r rhaglwyth ar y bêl ddur yn dechrau gwanhau, gan arwain at ostyngiad yng nghywirdeb symud rhannau gwaith yr offeryn peiriant. Os ydych chi am gynnal y cywirdeb cychwynnol, rhaid i chi ailosod y braced rheilffyrdd, neu hyd yn oed ailosod y rheilffordd. Os oes gan y system reilffordd effaith preload. Mae cywirdeb y system wedi'i golli, a'r unig ffordd yw disodli'r elfennau treigl.
Mae dyluniad y system rheilffyrdd canllaw yn ymdrechu i gael yr ardal gyswllt fwyaf rhwng yr elfen sefydlog a'r elfen symudol. Mae hyn nid yn unig yn gwella gallu cario'r system, ond hefyd gall y system wrthsefyll y grym effaith a gynhyrchir gan dorri ysbeidiol neu dorri disgyrchiant, lledaenu'r grym yn eang, ac ehangu'r gallu dwyn. Maes grym. Er mwyn cyflawni hyn, mae yna wahanol siapiau rhigol ar gyfer y system rheilffyrdd canllaw. Mae dau gynrychiadol. Gelwir un yn fath Gedai (math bwa pigfain), y siâp yw estyniad hanner cylch, a'r pwynt cyswllt yw'r apex; y llall Mae'r rhywogaeth ar siâp arc a gall hefyd chwarae'r un rôl. Ni waeth pa fath o strwythur, dim ond un pwrpas sydd, ac yn ymdrechu i gael mwy o gyswllt radiws pêl ddur rholio â'r rheilffyrdd canllaw (elfen sefydlog). Y ffactor sy'n pennu nodweddion perfformiad y system yw: sut mae'r elfennau treigl yn cysylltu â'r rheilffyrdd canllaw, sef yr allwedd i'r broblem.
