CN214557714U

CN214557714U - Integrated high-rigidity upright post structure of vertical milling machine

Info

Publication number: CN214557714U
Application number: CN202120891726.4U
Authority: CN
Inventors: 顾立柱
Original assignee: Anhui Pengrui Intelligent Technology Co ltd
Current assignee: Anhui Pengrui Intelligent Technology Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-11-02
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses a high rigidity stand structure of integral type of vertical milling machine belongs to stand technical field. The utility model discloses be provided with a pair of parallel distribution's guide rail on the stand on the lateral wall that links to each other with the z axle headstock, the guide rail extends along the direction of height of stand, and wherein the stand includes the portion of preventing inclining at top, prevents inclining the dorsal part slope downwardly extending that the guide rail was kept away from to the top surface orientation, and the below of preventing inclining is provided with the stand body, and prevents inclining portion and stand body constitution chevron structure. The utility model aims to overcome current vertical machining center stand rigidity relatively poor, the stand easily appears and leans forward the serious scheduling problem of deformation, provides a vertical milling machine's high rigidity stand structure of integral type, through the optimization of stand structure, can improve the rigidity of stand, effectively reduces the stand and leans forward the deformation degree for the z axle is stable higher under the high-speed motion.

Description

Integrated high-rigidity upright post structure of vertical milling machine

Technical Field

The utility model relates to a stand technical field, more specifically say, relate to a vertical milling machine's high rigidity stand of integral type structure.

Background

In the existing numerical control machining technology, a milling machine consists of a stand column, a spindle head, a workbench, a saddle and a base. The column is an indispensable part of the milling machine, and has the main function of enabling the spindle head to move up and down and playing a supporting role. The stand column structure of the existing numerical control vertical milling machine is seen from the side surface of a base to the stand column, the upper part of the stand column is in a rectangular structural design, the strength is not high, the bearing capacity is poor, the problem that the stand column is prone to forward tilting and serious deformation and the like under the traction action of a z-axis spindle box when a machine tool is used for cutting is solved, and therefore the aim of always pursuing in the industry is to design the high-rigidity stand column which is not prone to forward tilting and serious deformation.

Through retrieval, a great deal of patent documents are disclosed about the vertical milling machine column structure, such as Chinese patent application numbers: 2010205431947, the name of invention creation is: the application discloses a vertical column structure of a vertical milling machine, wherein the lower part of the vertical column is of a forked structure, so that the vertical column is in an inverted Y shape, the lower end part of the inverted Y-shaped fork is connected with a machine body of the milling machine, and an accommodating space is arranged between the middle part of the fork and the machine body. The accommodating space is used for accommodating the machine tool workbench longitudinal rail sleeved type protective cover, and the length of a single section of the sleeved type protective cover is matched with that of the accommodating space. The length of the single section of the sleeved protective cover can be equal to or slightly larger than the length of the accommodating space. By arranging the inverted Y-shaped upright column structure, the upright column and the lathe bed are connected to form a more stable triangular supporting structure, and the bending resistance is improved; meanwhile, the lower part of the upright post is provided with an accommodating space for the protective cover, so that the length of the single-section protective cover is greatly increased, the sleeving quantity of the protective cover can be greatly reduced, and the reliability of the protective cover is improved. The scheme is a good exploration for the vertical milling machine stand column structure, but still has a further promotion space, and the research on the vertical milling machine stand column structure in the industry is never stopped.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to overcome current vertical machining center stand rigidity relatively poor, the stand easily appears and leans forward the serious scheduling problem of deformation, provides a vertical milling machine's high rigidity stand structure of integral type, through the optimization of stand structure, can improve the rigidity of stand, effectively reduces the stand and leans forward the deformation degree for the z axle is stable higher under the high-speed motion.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a high rigidity stand structure of integral type of vertical milling machine is provided with a pair of parallel distribution's guide rail on the lateral wall that links to each other with the z axle headstock on the stand, and the guide rail extends along the direction of height of stand, and wherein the stand includes the portion of preventing inclining at top, prevents inclining the dorsal part slope downwardly extending that the guide rail was kept away from to the portion top surface orientation, and the below of preventing inclining is provided with the stand body, and prevents inclining portion and stand body constitution chevron structure.

As the utility model discloses further improvement has set gradually motor cabinet and bearing frame along direction of height from the top down between the guide rail of both sides, and the welding of motor cabinet and bearing frame homogeneous style on the stand.

As a further improvement, the bearing seat is of a split design, and a connecting shin plate is connected between the bearing seat and the motor base.

As a further improvement, the top surface of the anti-tilt portion includes the installation section for the motor cabinet, and the dorsal part downward sloping extension of keeping away from the motor cabinet on the installation section is provided with the anti-tilt section.

As a further improvement, the bottom width direction both sides of the anti-tilt section are extended outwards horizontally to form horizontal sections, and the outer ends of the two sides of the horizontal sections, which are away from the anti-tilt section, are connected with the closed reinforcing sections.

As a further improvement of the present invention, an included angle between the tilt prevention section and the horizontal section is α, and a range of α is 120 ° to 150 °.

As a further improvement, the bottom of the stand body is provided with a vertical downwardly extending stand base on which a plurality of foundation adjustment screw holes are provided.

As a further improvement, the bottom center of the stand column base is provided with a dodging cavity which runs through the thickness of the stand column base.

As a further improvement, the inside of the stand is equipped with hollow box structure along the direction of height, just the box structure is provided with the strengthening rib with the stand is connected all around between the lateral wall.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a high rigidity stand structure of integral type of vertical milling machine, the oblique back of the body formula structural design in stand top not only can alleviate stand weight, can also effectively reduce the stress point and the stand degree of deformation that leans forward, improves the stability and the precision retentivity of z axle headstock when the peak, effectively improves the machining precision of lathe.

(2) The utility model discloses a high rigidity stand structure of integral type of vertical milling machine, because the inclination of preventing the section of inclining is great, has increased the inclined plane, can effectively improve the rigidity of stand, further is favorable to the heavy cutting of z axle headstock, reduces about the stand and the deformation degree that leans forward.

(3) The utility model discloses a high rigidity stand structure of integral type of vertical milling machine prevents that tip and stand body constitute the chevron structure, can effectively reduce the focus of stand, improves the stability of the high-speed motion of z axle.

(4) The utility model discloses a high rigidity stand structure of integral type of vertical milling machine, the bottom central point of stand base puts and sets up the chamber of dodging that runs through its thickness, not only can further alleviate the self weight of stand, can also effectively dodge the vertical track safety cover of lathe workstation.

(5) The utility model discloses a high rigidity stand structure of vertical milling machine's integral type, motor cabinet and bearing frame integral type casting reduce the fixed faying face on the stand, connect the rigidity better, reduce the assembly adjustment time with z axle headstock.

(6) The utility model discloses a high rigidity stand structure of integral type of vertical milling machine, the inside of stand is equipped with hollow box structure along the direction of height, and the box structure all around with the stand be connected between the lateral wall all around and be provided with the strengthening rib, adopt hollow box body type structure and the mode that the strengthening rib was arranged to the lateral wall all around, when reducing stand weight, can effectively improve the bending resistance antitorque performance of stand, improve the rigidity intensity of stand.

Drawings

Fig. 1 is a schematic perspective view of an integrated high-rigidity column structure of a vertical milling machine according to the present invention;

fig. 2 is a schematic view of a front view structure of an integrated high-rigidity upright post structure of a vertical milling machine of the present invention;

FIG. 3 is a schematic cross-sectional view of section D-D of FIG. 2;

fig. 4 is a schematic cross-sectional view of section E-E of fig. 2.

The reference numerals in the schematic drawings illustrate:

100. a column; 101. reinforcing ribs; 110. an anti-roll portion; 111. an installation section; 112. an anti-roll section; 113. a horizontal segment; 114. a closed reinforcement section; 120. a column body; 130. a column base; 131. adjusting screw holes for the feet; 140. a guide rail; 150. a motor base; 160. and a bearing seat.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

With reference to fig. 1-4, the integral high-rigidity upright post structure of the vertical milling machine of the present embodiment includes a pair of guide rails 140 disposed on a side wall of the upright post 100 connected to the z-axis headstock, and the guide rails 140 extend along the height direction of the upright post 100. As shown in fig. 1, in the present embodiment, the pillar 100 includes a top anti-tilt portion 110, a top surface of the anti-tilt portion 110 extends downward and slantingly toward a back side away from the guide rail 140, specifically, the top surface of the anti-tilt portion 110 includes a mounting section 111 for the guide rail 140 and the motor base 150, a back side of the mounting section 111 away from the motor base 150 is provided with an anti-tilt section 112 extending downward and downwardly, both sides of the bottom width direction of the anti-tilt section 112 are provided with horizontal sections 113 extending horizontally and outwardly, and an outer side end of the horizontal sections 113 on both sides away from the anti-tilt section 112 is connected with a closed reinforcement section 114. Due to the oblique back type structural design of the top of the upright post 100, the weight of the upright post 100 can be reduced, the stress point and the forward tilting deformation degree of the upright post 100 can be effectively reduced, the stability and the precision retentivity of the Z-axis spindle box at the highest point are improved, and the machining precision of a machine tool is effectively improved. An angle between the anti-tilt section 112 and the horizontal section 113 is α, and α is in a range of 120 ° to 150 °, specifically, α is 120 ° in this embodiment. Because the inclination angle of the anti-tilt section 112 is larger, the inclination angle is increased, the rigidity of the upright post 100 can be effectively improved, the heavy cutting of the z-axis spindle box is further facilitated, and the left-right and forward-tilt deformation degree of the upright post 100 is reduced.

As shown in fig. 2, in the embodiment, the upright body 120 is disposed below the anti-roll portion 110, and the anti-roll portion 110 and the upright body 120 form a herringbone structure, which can effectively lower the center of gravity of the upright 100 and improve the stability of the z-axis high-speed motion. The bottom of stand body 120 is provided with vertical downwardly extending's stand base 130 in this embodiment, has seted up a plurality of lower margin adjustment screw holes 131 on the stand base 130, is used for installing lower margin adjustment screw in the lower margin adjustment screw hole 131, is convenient for install stand 100 on the lathe bed. The bottom center position of the stand column base 130 is provided with an avoiding cavity penetrating through the thickness of the stand column base, so that the self weight of the stand column 100 can be further reduced, and a longitudinal rail protection cover of a machine tool workbench can be effectively avoided.

In this embodiment, the motor base 150 and the bearing seat 160 are sequentially arranged between the guide rails 140 on the two sides from top to bottom along the height direction, the motor base 150 and the bearing seat 160 are integrally welded on the upright post 100, the motor base 150 and the bearing seat 160 are integrally cast on the upright post 100, a fixed joint surface is reduced, the connection rigidity is better, and the assembly adjustment time with a z-axis spindle box is shortened. Wherein bearing frame 160 is split type design, and split type bearing frame 160 can effectively reduce the processing degree of difficulty, improves the product percent of pass. A connecting shank plate (not shown) is connected between the bearing seat 160 and the motor seat 150, so that the rigidity of the z-axis headstock motion can be further improved.

As shown in fig. 4, in the present embodiment, a hollow box structure is disposed inside the column 100 along the height direction, and reinforcing ribs 101 are disposed between the periphery of the box structure and the peripheral side walls of the column 100, and the hollow box structure and the peripheral side walls are arranged with the reinforcing ribs 101, so that the weight of the column 100 is reduced, the bending resistance and the torsion resistance of the column 100 can be effectively improved, and the rigidity strength of the column 100 is improved.

Example 2

The basic structure of the integrated high-rigidity column structure of the vertical milling machine in this embodiment is the same as that in embodiment 1, except that an angle α between the anti-tilt section 112 and the horizontal section 113 in this embodiment is 150 °.

Example 3

The basic structure of the integrated high-rigidity column structure of the vertical milling machine in this embodiment is the same as that in embodiment 1, except that an angle α between the anti-tilt section 112 and the horizontal section 113 in this embodiment is 140 °.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a high rigidity stand structure of integral type of vertical milling machine which characterized in that: a pair of guide rails (140) which are distributed in parallel is arranged on one side wall, connected with a z-axis spindle box, of the upright column (100), the guide rails (140) extend along the height direction of the upright column (100), wherein the upright column (100) comprises an anti-tilting part (110) at the top, the top surface of the anti-tilting part (110) inclines towards the back side far away from the guide rails (140) and extends downwards, an upright column body (120) is arranged below the anti-tilting part (110), and the anti-tilting part (110) and the upright column body (120) form a herringbone structure.

2. The integrated high-rigidity upright post structure of the vertical milling machine according to claim 1, wherein: a motor base (150) and a bearing seat (160) are sequentially arranged between the guide rails (140) on the two sides from top to bottom along the height direction, and the motor base (150) and the bearing seat (160) are integrally welded on the upright post (100).

3. The integrated high-rigidity upright post structure of the vertical milling machine according to claim 2, wherein: the bearing seat (160) is designed in a split mode, and a connecting shin plate is connected between the bearing seat (160) and the motor base (150).

4. The integrated high-rigidity column structure of the vertical milling machine according to claim 1 or 2, wherein: the top surface of the anti-tilting part (110) comprises a mounting section (111) for the motor base (150), and an anti-tilting section (112) is arranged on the mounting section (111) and extends downwards and away from the back side of the motor base (150).

5. The integrated high-rigidity upright post structure of the vertical milling machine according to claim 4, wherein: horizontal sections (113) are arranged on two sides of the bottom of the anti-tilt section (112) in the width direction in an outward horizontal extending mode, and the outer side end portions, far away from the anti-tilt section (112), of the horizontal sections (113) on the two sides are connected with closed reinforcing sections (114).

6. The integrated high-rigidity upright post structure of the vertical milling machine according to claim 5, wherein: the included angle between the anti-tilting section (112) and the horizontal section (113) is alpha, and the range of alpha is 120-150 degrees.

7. The integrated high-rigidity upright post structure of the vertical milling machine according to claim 1, wherein: the bottom of stand body (120) is provided with vertical downwardly extending's stand base (130), has seted up a plurality of lower margin adjustment screw holes (131) on stand base (130).

8. The integrated high-rigidity upright structure of the vertical milling machine according to claim 7, wherein: an avoiding cavity penetrating the thickness of the upright post base (130) is formed in the center of the bottom of the upright post base.

9. The integrated high-rigidity upright post structure of the vertical milling machine according to claim 1, wherein: the inside of stand (100) is equipped with hollow box structure along the direction of height, just box structure is connected between being provided with strengthening rib (101) all around and stand (100) lateral wall all around.