CN102588432A

CN102588432A - Aluminium base built-in raceway roller guide pair

Info

Publication number: CN102588432A
Application number: CN2012100404858A
Authority: CN
Inventors: 丁太虎
Original assignee: Weihai Lio Taijing Automation Co Ltd
Priority date: 2012-02-22
Filing date: 2012-02-22
Publication date: 2012-07-18

Abstract

The invention discloses an aluminium base built-in raceway roller guide pair. The aluminium base built-in raceway roller guide pair is provided with an aluminium base guide rail and an aluminium base sliding block, wherein a guide rail part is composed of a guide rail base body 1 and two high hardness steel raceways 2 inlaid on the two sides of an internal groove of the guide rail base body; a sliding block part comprises a sliding block base body 3, a fixed roller group 4 and an adjusting roller group 5, and the fixed idler wheel group 4 is fixed after installation; the adjusting roller group 5 is provided with an eccentric shaft 7, the operation gap or pretightening force of idler wheels can be adjusted, and a hold-down nut 8 in an upper part counterbore B3 is locked after adjustment; and the structure of the sliding block part is simple, the sliding block base body 3 is made of an aluminium alloy material, only the roller groups 4 and 5 are made of steel material, the weight of the whole sliding block part is light, and a slide guide base body 2 has larger sectional area and good lateral stiffness. The aluminium base built-in raceway roller guide pair provided by the invention has the characteristics of light weight, small inertia, low cost, rapid speed, low noise, operation stability and the like, and is suitable for a high speed straight-line motion device in various complex environments.

Description

A kind of aluminium base built-in raceway rolling wheel guide rails is secondary

Technical field

The present invention provides a kind of aluminium base built-in raceway rolling wheel guide rails secondary, belongs to machine-building and application, relates to linear rail, is applicable to IT industry and industrial automation industry.

Background technique

The current ball linear rail that is widely used, its structure are monoblock steel guide rails and monoblock steel slide body, and the accurate raceway that contacts with ball is directly processed on steel guide rails and steel slide body, and therefore can there be following shortcoming in the linear rail of this form:

1. cost of material is high: the roller surface in the slide body need have the performance of highi degree of accuracy high-hardness, wearable, and therefore whole guide rail and slide body need use the manufacturing of more expensive high alloy steel material, like Bearing Steel etc.;

2. manufacturing process is complicated, and processing cost is high: for the plane of trajectory orbital of highi degree of accuracy high hardness is provided, steel guide rails that volume is bigger and steel slide body need carry out complicated heat treatment technology in course of working, in the end also need carry out precise finish to slideway;

3. weight is big, and inertia is big, and energy consumption is high; Peripheral unit investment is higher with cost of use: particularly the inertia in the high-speed motion is very big at the volley for heavier steel slide block, is the soundness that guarantees the mass motion parts, and its peripheral structure is also corresponding thick and heavy; The weight and the inertia of mass motion parts are bigger, reach design speed, and more powerful power need be provided; The device of transferring power is also sturdy relatively, causes the weight of entire equipment bigger at last, has strengthened the cost and the operation energy consumption of equipment.

In addition; A kind of profile and the original essentially identical aluminum steel of steel spherical guide slide block raceway rolling wheel guide rails slide block appear on the market now; Its remarkable performance has solved many drawbacks that above-mentioned steel guide rails slide block exists basically; But because the cross section and the steel guide rails of this guide rail are basic identical, and the intensity of aluminum alloy can't be compared with steel, so there is the relatively poor shortcoming of rigidity in this guide rail; The roller surface that is exposed to guide rail matrix both sides in addition is prone to pollute or is injured, therefore having relatively high expectations to Environmental Conditions.

Therefore invent a kind of beautiful shape, good rigidity, environment is not had harsh require and to have a linear guide pairs of above-mentioned aluminum steel raceway rolling wheel guide rails slide block premium properties necessary.

Summary of the invention

The invention provides a kind of use Precision Aluminum alloy profile and do guide rail matrix and slide body, use the expensive high alloy steel of minute quantity to do the aluminium base built-in raceway rolling wheel guide rails pair of the low-cost good rigidity of low weight of raceway.

Advantage of the present invention is:

Use a large amount of aluminium alloy extrusions to replace expensive high alloy steel material, cost of material is significantly reduced; Use simple cylindrical raceway and Precision Aluminum alloy profile matrix to be assembled into guide rail and slide block, particularly the heat treatment and the abrasive process of plane of trajectory orbital become unusual simple to make processing technology; Employed four rolling is in same mounting plane, and processing and installation are simple, and the roller of adjustment side can be adjusted running clearance or pretightening force through eccentric shaft, adds that the structure of whole board-like slide body is very simple, makes the manufacturing of slide block be very easy to; A large amount of aluminum alloys replaces steel; Make overall weight particularly the weight of slide block become very light; It is very little that motional inertia becomes, thereby can reduce driving power, reduces the drive unit size; Perhaps under the condition of using equal driving power, movement velocity is improved, meets the performance requirement of modern machines equipment.What deserves to be mentioned is most that the guide rail sectional area among the present invention is bigger, its profile width is consistent with slide block, and both attractive in appearance and good rigidly places the inner raceway in guide rail cross section to be difficult for coming to harm and helps sealing.

Description of drawings

Fig. 1 is a general structure stereogram of the present invention;

Fig. 2 is the sectional view of A-A and B-B two place's structures among Fig. 1;

Fig. 3 is the sectional view of guide rail;

Fig. 4 is the structural perspective of slide block among the present invention;

Fig. 5 is the structural perspective of slide block matrix (3);

Fig. 6 is the plan view of slide block matrix (3);

Fig. 7 is the sectional view at C-C and D-D two places among Fig. 6;

Fig. 8 is the adjustment roller group (5) that is combined into by eccentric shaft (7) and roller bearing (9) and the structural drawing adjusted of guide rail (2);

Fig. 9 is three kinds of section forms of roller (9) groove (B10);

Figure 10 is the form that is used for three rollers of low load among the present invention;

Figure 11 is the structure of eccentric shaft (7);

Figure 12 is used for the many raceways of high capacity and the form of many rollers among the present invention.

Embodiment

A kind of aluminium base built-in raceway rolling wheel guide rails is secondary; As shown in Figure 1; Be provided with aluminium base guide rail and aluminium base slide block two-part; Said rail sections is made up of guide rail matrix 1 and two high hardness steel raceways 2 that are embedded in guide rail matrix inside groove both sides, and like Fig. 2, Slipper comprises slide block matrix 3, fixed idler whell group 4, adjustment roller group 5.

Said guide rail matrix 1 is an aluminum alloy material with slide block matrix 3, is generally to use precision die drawing moulding, through the process structure of cutting process.

As shown in Figure 3, guide rail matrix 1 cross section is " recessed " font, is provided with inside groove B1, and inside groove B1 bi-side are provided with the groove B2 that meets raceway 2 sectional shapes, are inlaying raceway 2 among the groove B2.When load force hour can be used the guide rail that has only 2 raceways, and need use the guide rail of 4 or more raceways, like Figure 12 than high loading.

The profile of said slide block matrix 3 is a cuboid, like Fig. 5, longitudinally is provided with and is used to install the counterbore B3 of roller group and the through hole B4 and the tapped hole B5 of space, like Fig. 6 and Fig. 7.Stagger mutually and be wavy in the lateral attitude of through hole B4 and tapped hole B5.As shown in Figure 4, fixed idler whell group 4 is installed in the tapped hole B5 that is positioned at the same side, and adjustment roller group 5 is installed in the through hole B4 of opposite side, and both contact with the raceway 2 of slide block matrix 3 inside groove both sides respectively, see Fig. 2.It is fixed that fixed idler whell group 4 is installed the back, and locking nut 6 is established in counterbore B3 in top.Adjustment roller group 5 is provided with eccentric shaft 7, and like Fig. 8 and Figure 11, rotation eccentric axis 7 can be adjusted the running clearance or the pretightening force of roller, adjusts the set screw nut 8 among the back locking top counterbore B3.When load hour can use 2 fixed idler whell groups 4 to adjust roller group 5 with 1, like Figure 10; Then the both need use a plurality ofly when load is big, is each 2 like what show among Fig. 1, Fig. 4, Fig. 6, can also be more in actual the use.

Said fixed idler whell group 4 is equipped with roller bearing 9 with adjustment roller group 5, when using the guide rail of 2 raceways, only establishes a roller bearing 9 in each roller group, like Fig. 2; And when using the guide rail of 4 or more raceways, each roller group is then established 2 or more roller bearing 9, like Figure 12.The external cylindrical surface of roller bearing 9 is provided with the annular groove B6 that meets raceway 2 sectional shapes.As shown in Figure 9, the cross section of the outer grooves B6 of said roller bearing 9 can be a circular arc, also can be both sides by " V " shape that straight line constitutes, can also be the Gothicism groove form that two circular arcs constitute.Multi-form groove B6 can adapt to different load and rate request.

Slipper among the present invention is simple in structure, and slide block matrix 3 is an aluminum alloy material as stated, has only

roller group

4 and 5 to be ferrous materials, the very light in weight of whole Slipper; Guide rail matrix 2 has bigger sectional area, and lateral rigidity is good.Therefore the present invention have in light weight, inertia is little, cost is low, speed is fast, noise is low, characteristics such as stable, can be applicable in the middle of the high-speed straight-line movement means in the various complicated.

Claims

1. an aluminium base built-in raceway rolling wheel guide rails is secondary; Be provided with aluminium base guide rail and aluminium base slide block two-part; It is characterized in that: said rail sections is made up of guide rail matrix (1) and two high hardness steel raceways (2) of being embedded in guide rail matrix inside groove both sides, and Slipper comprises slide block matrix (3), fixed idler whell group (4), adjustment roller group (5).

2. a kind of aluminium base built-in raceway rolling wheel guide rails according to claim 1 is secondary, and it is characterized in that: said guide rail matrix (1) and slide block matrix (3) are aluminum alloy material, can use precision die drawing moulding, through the process structure of cutting process.

3. a kind of aluminium base built-in raceway rolling wheel guide rails according to claim 1 is secondary; It is characterized in that: said guide rail matrix (1) cross section is " recessed " font; Be provided with inside groove (B1), inside groove (B1) bi-side are provided with the groove (B2) that meets raceway (2) sectional shape.

4. a kind of aluminium base built-in raceway rolling wheel guide rails according to claim 1 is secondary, and it is characterized in that: the groove (B2) of said guide rail matrix (1) inside groove both sides and the raceway (2) that is positioned at wherein have two at least.

5. a kind of aluminium base built-in raceway rolling wheel guide rails according to claim 1 is secondary; It is characterized in that: the profile of said slide block matrix (3) is a cuboid; Longitudinally be provided with the through hole (B4) and tapped hole (B5) of the counterbore (B3) that is used to install roller group and space, said through hole (B4) staggers mutually with the lateral attitude of tapped hole (B5) and is wavy.

6. according to claim 1,5 described a kind of aluminium base built-in raceway rolling wheel guide rails pairs; It is characterized in that: said fixed idler whell group (4) is installed in the tapped hole (B5) that is positioned at slide block matrix (3) the same side; Adjustment roller group (5) is installed in the through hole (B4) that is positioned at slide block matrix (3) opposite side, and both contact with the raceway (2) of slide block matrix (3) inside groove both sides respectively.

7. according to claim 1,5,6 described a kind of aluminium base built-in raceway rolling wheel guide rails pairs, it is characterized in that: it is fixed that said fixed idler whell group (4) is installed the back, and locking nut (6) is established in counterbore (B3) in top; Adjustment roller group (5) is provided with eccentric shaft (7), and rotation eccentric axis (7) can be adjusted the running clearance or the pretightening force of roller, and set screw nut (8) is established in counterbore (B3) in top.

8. according to claim 1,5,6,7 described a kind of aluminium base built-in raceway rolling wheel guide rails pairs; It is characterized in that: said fixed idler whell group (4) has 2 at least; And adjustment roller group (5) can be 1 at least, and the both need use a plurality of when load force is big.

9. a kind of aluminium base built-in raceway rolling wheel guide rails according to claim 1 is secondary; It is characterized in that: said fixed idler whell group (4) and adjustment roller group (5) are equipped with one or more roller bearings (9), and the external cylindrical surface of roller bearing (9) is provided with the annular groove (B6) that meets raceway (2) sectional shape.

10. according to claim 1,6 described a kind of aluminium base built-in raceway rolling wheel guide rails pairs; It is characterized in that: the cross section of the outer grooves (B6) of said roller bearing (9) can be a circular arc; Also can be both sides by " V " shape that straight line constitutes, can also be the Gothicism groove form that two circular arcs constitute.