CN201950469U

CN201950469U - Machine tool bed

Info

Publication number: CN201950469U
Application number: CN2011200815540U
Authority: CN
Inventors: 徐岩峰; 叶国斌
Original assignee: YUHUAN SHIDAI JINGDIAN MACHINERY CO Ltd
Current assignee: YUHUAN SHIDAI JINGDIAN MACHINERY CO Ltd
Priority date: 2011-03-25
Filing date: 2011-03-25
Publication date: 2011-08-31
Anticipated expiration: 2021-03-25

Abstract

The utility model provides a machine tool bed, belongs to the technical field of machines, and solves the problems of poor bearing ability, high manufacturing cost, and the like in the prior machine tool bed. The machine tool bed comprises a tool bed body, wherein, the tool bed body is provided with a base; a first guide rail and a second guide rail, which are arranged in parallel, are arranged at the top of the tool bed body; the first guide rail is a convex guide rail; and the second guide rail is a rectangular guide rail. The machine tool bed has the advantages of high wear resistance, high bearing ability, good guide performance, and the like.

Description

Bed piece

Technical field

The utility model belongs to field of mechanical technique, relates to a kind of machine tool component, particularly a kind of bed piece.

Background technology

Bed piece is the basis of lathe, it also is one of critical component of lathe manufacturing, carry other parts on the bed piece, also need feeding campaign on the guide rail that lathe bed has as carriage component, position relation and feed movement precision between each parts guarantee by lathe bed that all this just requires bed piece to have enough rigidity, shock resistance and wearability.

The existing machine tool lathe bed all is made up of the guide rail that has on lathe bed body and the body, guide rail is two level gauges that be arranged in parallel or slant rail, for machining accuracy and the wearability that guarantees the guide rail place, guide rail generally all passes through high-frequency quenching, but the guide pass of bed ways after treatment still weares and teares comparatively fast, therefore have the people that bed piece has been made improvement, some has also applied for patent, and for example the Chinese patent literature data discloses a kind of lathe lathe bed [application number: 200920303759.1; Granted publication number: CN201493684U], it comprise with base be one the lathe bed body, be arranged on the groove of cooling down at two ends, lathe bed body top, saddle that the tailstock that is arranged at outside in the groove of cooling down of an end respectively moves V-type face and tailstock all-moving surface and is arranged at the outer inner edge of groove of cooling down of the other end respectively moves the V-type face and the tailstock all-moving surface, be provided with the lathe bed glide slope and have the saddle stopper slot at the lathe bed glide slope near lathe bed body place below saddle moves the tailstock all-moving surface that V-type face and tailstock move V-type face one end; On described lathe bed glide slope, has the wearing layer that quenches and form.

Above-mentioned lathe is provided with quench hardened case with lathe bed on the guide rail glide slope, improved the hardness of bed ways glide slopes, has improved wearability, but the overall wear resistance of bed ways is still not high, all V-shaped of guide rail, and bearing capacity is relatively poor, and processing request is higher, causes manufacturing cost higher.

Summary of the invention

The purpose of this utility model is at the above-mentioned problems in the prior art, and the bed piece that a kind of wearability is good and bearing capacity is good is provided.

The purpose of this utility model can realize by following technical proposal: a kind of bed piece, comprise the lathe bed body, described lathe bed body has base and the lathe bed bodies top has first guide rail and second guide rail that be arranged in parallel, it is characterized in that, described first guide rail is a convex guide rail, and described second guide rail is a rectangular guideway.

The guidance quality of the convex guide rail of this bed piece is good, can guarantee machining accuracy, and the compact conformation of convex guide rail, and the weight of bearing other part can guarantee the good stability of processing simultaneously; The guide pass of rectangular guideway is the plane, and guide pass is comparatively broad, and the bearing capacity of rectangular guideway is good, the rigidity height, wearability is good, and simple in structure, manufacturing cost is lower.

In above-mentioned bed piece, described convex guide rail is the symmetrical triangle guide rail.The angle that the symmetrical triangle guide rail is positioned at lathe bed body outer edge place is 45 degree with another angle that is positioned at lathe bed body inboard, and the symmetrical triangle guide rail is easily manufactured like this, and can compensate automatically after wearing and tearing, the guiding accuracy height.

In above-mentioned bed piece, the drift angle of described symmetrical triangle guide rail is 90 degree.The bearing capacity of symmetrical triangle guide rail and guidance capability equilibrium, service life is longer.

As another kind of situation, in above-mentioned bed piece, described convex guide rail is asymmetric triangular guide.Asymmetric triangular guide can bear neither equidirectional active force, can make active force as far as possible perpendicular to guide pass, guarantees the bearing capacity of bed piece.

In above-mentioned bed piece, the angle that described asymmetric triangular guide is positioned at lathe bed body outer edge place is 15 to spend to 30 degree, and the angle that is positioned at lathe bed body inboard is 60 to spend to 75 degree, and the drift angle of asymmetric triangular guide is 90 degree.

In above-mentioned bed piece, the glide slope of described convex guide rail and the glide slope of rectangular guideway maintain an equal level, and described convex guide rail is higher than rectangular guideway.Make things convenient for the installation of other part like this, and convex guide rail can play leading role, guidance quality is good.

Compared with prior art, this bed piece employing convex guide rail combines with rectangular guideway, and the wearability of bed piece is good like this, bearing capacity is good and guidance quality is good, and the manufacturing cost of rectangular guideway is lower, has reduced the manufacturing cost of whole bed piece.

Description of drawings

Fig. 1 is mechanism's vertical view of this bed piece.

Fig. 2 is the structure cutaway view in this bed piece A-A cross section.

Fig. 3 is the structure cutaway view of the another kind of structure of this bed piece.

Among the figure, 1, the lathe bed body; 1a, base; 2, convex guide rail; 3, rectangular guideway.

The specific embodiment

Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

Embodiment 1

As depicted in figs. 1 and 2, this bed piece comprises lathe bed body 1, lathe bed body 1 has base 1a and lathe bed body 1 top has first guide rail and second guide rail that be arranged in parallel, first guide rail is a convex guide rail 2, convex guide rail 2 in the present embodiment is the symmetrical triangle guide rail, the angle that the symmetrical triangle guide rail is positioned at lathe bed body 1 outer edge place is 45 degree with another angle that is positioned at lathe bed body 1 inboard, and the drift angle of symmetrical triangle guide rail is 90 degree; Second guide rail is a rectangular guideway 3.The glide slope of the glide slope of convex guide rail 2 and rectangular guideway 3 maintains an equal level, and convex guide rail 2 is higher than rectangular guideway 3, in actual the use, convex guide rail 2 is arranged near the operator away from operator, rectangular guideway 3, promptly can arrange process window in rectangular guideway 3 sides, the bearing capacity of the bed piece of cloth postpone is better like this, and convex guide rail 2 is not easy to wear yet.

The convex guide rail 2 of this bed piece is the symmetrical triangle guide rail, the symmetrical triangle guide rail is easily manufactured, and can compensate automatically after wearing and tearing, the guiding accuracy height, and the structure of symmetrical triangle guide rail is comparatively compact, and the weight of bearing other part can guarantee the good stability of processing simultaneously; The guide pass of rectangular guideway 3 is the plane, and guide pass is comparatively broad, and the bearing capacity of rectangular guideway 3 is good, the rigidity height, wearability is good, and simple in structure, manufacturing cost is lower, effectively reduces the manufacturing cost of whole bed piece.

Embodiment 2

As shown in Figure 3, structure and the principle of present embodiment and embodiment 1 are basic identical, different place is that present embodiment camber guide rail 2 is asymmetric triangular guide, the angle that asymmetric triangular guide is positioned at lathe bed body 1 outer edge place is 15 to spend to 30 degree, the angle that is positioned at lathe bed body 1 inboard be 60 spend to 75 the degree, the drift angle of asymmetric triangular guide be 90 the degree.In the present embodiment asymmetric triangular guide be positioned at the angle at lathe bed body 1 outer edge place be 25 the degree, the angle that is positioned at lathe bed body 1 inboard is 65 degree, asymmetric like this triangular guide can bear neither equidirectional active force, can make active force as far as possible perpendicular to guide pass, guarantee the bearing capacity of bed piece.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has used terms such as lathe bed body 1, base 1a, convex guide rail 2, rectangular guideway 3 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims

1. bed piece, comprise lathe bed body (1), described lathe bed body (1) has base (1a) and lathe bed body (1) top has first guide rail and second guide rail that be arranged in parallel, it is characterized in that, described first guide rail is convex guide rail (2), and described second guide rail is rectangular guideway (3).

2. bed piece according to claim 1 is characterized in that, described convex guide rail (2) is the symmetrical triangle guide rail.

3. bed piece according to claim 2 is characterized in that, the drift angle of described symmetrical triangle guide rail is 90 degree.

4. bed piece according to claim 1 is characterized in that, described convex guide rail (2) is asymmetric triangular guide.

5. bed piece according to claim 4, it is characterized in that, the angle that described asymmetric triangular guide is positioned at lathe bed body (1) outer edge place is 15 to spend to 30 degree, is positioned at the inboard angle of lathe bed body (1) and is 60 and spend to 75 degree, and the drift angle of asymmetric triangular guide is 90 degree.

6. according to any described bed piece of claim 1 to 5, it is characterized in that the glide slope of the glide slope of described convex guide rail (2) and rectangular guideway (3) maintains an equal level, and described convex guide rail (2) is higher than rectangular guideway (3).