CN201544041U

CN201544041U - Inner cooling follow-rest

Info

Publication number: CN201544041U
Application number: CN2009201274126U
Authority: CN
Inventors: 张震; 王在昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-25
Filing date: 2009-05-25
Publication date: 2010-08-11
Anticipated expiration: 2019-05-25

Abstract

The utility model relates to an inner cooling follow-rest, which relates to the technique of metal cutting machines, which mainly aims at cooling horizontal lathe follow-rest top head. The inner cooling follow-rest is characterized in that a cooling media conveying passage connector is arranged on the follow-rest of a horizontal lathe; the connector is communicated with an inner cooling passage inside the follow-rest; and a cooling media blowout opening of the inner cooling passage is arranged on a combined portion of the top head and a to-be-processed shaft workpiece. As the top head work surface and the workpiece surface are cooled from inside to outside, the cooling condition of the lathe is improved, the temperature rise of the top head and the workpiece is lowered, and pollution and thermal deformation are reduced. Besides, as cooling media are obtained from a normal temperature fluid supply source or a low-temperature fluid supply source, a fluid supply source can be used commonly by cooling a lathe cutting area, and low-temperature air spray cooling of the top head and a workpiece contact portion can be realized.

Description

Interior cooling follow-rest

Technical field:

The cooling follow-rest was relevant with the metal-cutting machine bed technique in the utility model related to, and was primarily aimed at the cooling of horizontal lathe follow-rest top, reached reduction top and workpiece temperature rise, reduced cutting agent consumption and thermal deformation, prevented the purpose that machining fluid pollutes.

Background technology:

Pollute in order to reduce machining fluid,, use normal temperature or low temperature compressed air very active as the research work of cooling medium, replacement cooling finish at the metal cutting manufacture field.

Before and after calendar year 2001, the cold wind generator that we succeed in developing, the gas flow temperature of compressed air hose input can be dropped to below-50 ℃, and sneak into the trace mist of oil, be transported to the cutting hot zone of lathe with pipeline, spray to the Tool in Cutting point, cutter has been implemented the cold nebulization cooling, respond well.But under study for action, we find: this technology is still not enough to some extent to the turning processing than the major axis class.Mainly show:

Processing needs to use follow-rest than the horizontal lathe of longaxones parts, and three tops are housed on the follow-rest, and the end of top directly closely contacts with the cylindrical of processed axle, plays the effect of supporting and centering.Add man-hour, the Work piece high-speed rotation is subjected to the influence of cutting force and frictional force, and the caloric value of top and workpiece is very big, serious wear; Have to use a large amount of machining fluids to implement cooling and lubricated from the outside to it.At this moment, the top heat generating spot that lathe occurs except that cutting point need be poured into a mould with finish, and this has just produced two fume pollution sources; And finish need reclaim by the food tray of lathe bed below, is storing a lot of finishes in the dish, and the smear metal of high temperature scatters in the finish that stores, and forms more serious secondary oil smoke pollution.Therefore, from the pollution of this class lathe of source blocking-up, it is extremely important just to seem.

Analyze top structure, we find, owing to wear and tear, add man-hour, and the end, top is very big and tight with the cylindrical contact area of axle, from outside cast cutting fluid, are difficult to allow the faying face that comes directly towards with workpiece effectively be cooled off and lubricate; Even a large amount of cast also can only be played cooling and lubricated effect, poor effect to the border of faying face.

If can pass through another passage, allow the cutting cooling medium outwards carry from the inside of top, just can make the faying face of top and workpiece be cooled off fully and lubricate; Overcome from the deficiency of outside cast cooling finish, reduce the temperature rise of workpiece and top, reduce the consumption of machining fluid; And, also can use air to add the method that micro-mist of oil or Cryogenic air add micro-mist of oil, it is implemented micro lubricating, reach and reduce the cutting temperature rise, reduce the purpose that finish pollutes.

Summary of the invention:

The purpose of this utility model is, overcome the deficiency of above-mentioned existing follow-rest structure, in inside, top the cooling medium transfer passage is set and provide a kind of, and outwards sprays the interior cooling top structure of cooling medium internally, thereby constitute interior cooling follow-rest described in the utility model.

Usually, the utility model is provided with cooling medium transfer passage interface on the follow-rest of lathe; Cooling medium transfer passage interface communicates with the cooling medium service duct, it is characterized in that: on the top of follow-rest, be provided with inner cooling path, inner cooling path communicates with the delivery outlet of cooling medium transfer passage interface, cooling medium ejiction opening on the top is located at the joint portion that comes directly towards with workpiece to be machined.

The utility model has also been done further to describe to the cooling medium transfer passage, it is characterized in that: the cooling medium service duct forces down warm fluid provider with band normal pressure and temperature fluid provider or band and communicates; Its band normal pressure and temperature fluid provider is meant the pump class; Band forces down warm fluid provider and is meant low temperature refrigerant, gas-liquid refrigeration system, heat exchanger etc.

The beneficial effects of the utility model are, under pressure, by the cooling medium transfer passage, directly allow normal temperature cooling medium or low-temperature cooling media outwards spray from the follow-rest top is inner, and the top internal heat is well distributed; Thereby reduced the temperature rise between top and the workpiece, reduced thermal deformation, and obtained cooling and lubricating preferably; Also eliminated a large amount of cast machining fluid pollution on the environments, to improving the crudy of environment and raising axial workpiece, significant.

Description of drawings:

Accompanying drawing is the structure of interior cooling follow-rest, wherein:

The 1----follow-rest, 2---cooling medium transfer passage interface, 3---cooling medium service duct, 4---top, 5---inner cooling path, 6 ... the cooling medium ejiction opening, the 7---workpiece.

The specific embodiment:

Below, the utility model is described further in conjunction with the accompanying drawings:

Among the figure, on horizontal lathe follow-rest 1, be provided with cooling medium transfer passage interface 2, the inlet of cooling medium transfer passage interface 2 communicates with cooling medium service duct 3, on the top 4 of follow-rest 1, be provided with inner cooling path 5, inner cooling path 5 communicates with the delivery outlet of cooling medium transfer passage interface 2, and obtains cooling medium from cooling medium service duct 3; The cooling medium ejiction opening 6 of inner cooling path 5 is located at the joint portion of top 4 and workpiece to be machined 7, is close to workpiece 7 with the working face of top 4; The cooling medium that relies on cooling medium service duct 3 to provide makes the workpiece 7 in the rotation and comes directly towards 4 to obtain cooling off preferably and lubricating relatively.

Cooling medium service duct 3 forces down warm fluid provider with band normal pressure and temperature fluid provider or band and communicates, and therefrom obtains cooling medium.Wherein, band normal pressure and temperature fluid provider is meant: air compressor, and hydraulic pump etc., they provide normal temperature gas, liquid or gas-liquid mixed flow cooling medium to inner cooling path 5.Band forces down warm fluid provider and is meant: the device of low wet, liquid or low temperature gas-liquid mixed flow cooling medium can be provided to inner cooling path 5, as: the low temperature refrigerant comprises liquid nitrogen gas cylinder, liquid carbon dioxide bottle etc.; The gas-liquid refrigeration system comprises gas, liquid refrigeration unit and device etc.; Heat exchanger comprises gas, liquid heat exchange cooling device etc.

Because cooling medium obtains, so the utility model, can realize that the normal temperature or the low-temperature trace that come directly towards with the workpiece contact site are lubricated with the shared fluid provider of the cooling in machine cut district from normal temperature fluid provider or cryogen source of supply.

Claims

1. Inner cooling follow-rest on the follow-rest of lathe, is provided with cooling medium transfer passage interface; The inlet of cooling medium transfer passage interface communicates with the cooling medium service duct, it is characterized in that: on the top of follow-rest, be provided with inner cooling path, the cold passage of Inner communicates with the delivery outlet of cooling medium transfer passage interface, cooling medium ejiction opening on the top is located at the joint portion that comes directly towards with workpiece to be machined.

2. Inner cooling follow-rest according to claim 1, it is characterized in that: the cooling medium service duct communicates with normal pressure and temperature fluid provider or atmospheric low-temperature fluid provider; Its normal pressure and temperature fluid provider is meant the pump class; The atmospheric low-temperature fluid provider is meant that the low temperature refrigerant is saved device, gas-liquid refrigeration system, heat exchanger.