CN208117238U - A kind of five axis engraving and milling machine tool body structures being combined based on casting and weldment - Google Patents

Abstract

The utility model discloses a body structure of a five-axis engraving and milling machine based on the combination of castings and weldments, comprising a base and a column, the column is cast from gray cast iron, and the column is erected on the upper surface of the base. The upper surface of the base is also connected with a Z-axis slide table through a slide rail, and a B-axis rotating workpiece table is connected to the Z-axis slide table, and the side of the column is connected with an X-axis slide table through a slide rail, and on the X-axis slide table A Y-axis slide table is connected with a slide rail, and an A-axis rotating shaft is connected with the Y-axis slide table. The utility model combines the functional requirements of the five-axis engraving and milling machine, overcomes the shortcomings of the bed structure of pure welded parts, such as easy deformation, low vibration resistance, heavy weight of the bed structure of pure castings, and long production cycle, etc., and exerts the resistance of the casting structure It has the advantages of strong vibration, sufficient rigidity, and small deformation. At the same time, it can inherit the advantages of short manufacturing cycle of weldment structure, low cost, and can greatly reduce the weight of the bed.

Description

A five-axis engraving and milling machine body structure based on the combination of castings and weldments

technical field

The utility model relates to a body structure of a five-axis engraving and milling machine, in particular to a body structure of a five-axis engraving and milling machine based on the combination of castings and weldments.

Background technique

Engraving and milling machine refers to a CNC milling machine that uses a small tool, high power and high speed spindle motor. Its advantage is that it can be used for both engraving and milling, and it uses a high speed spindle to achieve high precision cutting. The bed is an important part of the machine tool, and it is the key load-bearing part. It plays a role in fixing and supporting other parts. It bears the weight of the machine, cutting resistance and the resulting bending moment during work. The comprehensive performance of the bed is very important. To a certain extent, it affects the machining accuracy and working ability of the machine tool, so the bed needs sufficient rigidity and accuracy retention to ensure machining accuracy.

The Chinese patent No. 201420484179.8 discloses a CNC three-dimensional engraving machine bed structure, the structure includes a bed body, the bed body is formed by butting and fixing the symmetrical left bed and right bed through connecting plates, and the bed The main body adopts the steel plate welding form. With the improvement of machine tool manufacturing process, compared with the traditional casting method, the weight of the machine bed is greatly reduced by steel plate welding, which shortens the manufacturing cycle and reduces the cost, but it also brings disadvantages such as easy deformation, low vibration resistance, and insufficient structural strength and rigidity. , The processing accuracy of the equipment is unstable.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a five-axis engraving and milling machine body structure based on the combination of castings and weldments. The utility model combines the functional requirements of the five-axis engraving and milling machine and overcomes the The pure weldment bed structure is easy to deform, low vibration resistance, and the pure casting bed structure is heavy, and the production cycle is long. The advantages of the casting structure are strong vibration resistance, sufficient rigidity, and small deformation. The weldment structure has the advantages of short manufacturing cycle, low cost, and can greatly reduce the weight of the bed.

The purpose of this utility model is achieved through the following technical solutions:

A five-axis engraving and milling machine body structure based on a combination of castings and weldments, including a base and a column, the column is cast from gray cast iron, the column is erected on the upper surface of the base, and the upper surface of the base is also A Z-axis slide table is connected through a slide rail, and a B-axis rotating workpiece table is connected to the Z-axis slide table. The X-axis slide table is connected to the side of the column through a slide rail, and a A Y-axis slide table is connected with an A-axis rotating shaft on the Y-axis slide table.

Preferably, the upright column is a hollow structure, cross-shaped reinforcing ribs are provided on the walls around the inner cavity of the upright column, and reinforcing ribs consistent with the outline of the outer wall are respectively provided in the vertical direction and the horizontal direction of the inner cavity of the upright column.

Preferably, the bottom surface of the column includes four plane feet, which are fixedly connected to the steel plate welded on the base through bolts.

Preferably, the base is formed by channel steel welding and is provided with four legs.

Compared with the prior art, the beneficial effects brought by the technical solution of the utility model are:

The body structure of the five-axis engraving and milling machine formed by the combination of castings and weldments in the utility model can not only maintain the characteristics of strong vibration resistance, sufficient rigidity, and small deformation of the casting structure on the column part with a large dynamic load, but also can The base part with relatively uniform force inherits the advantages of short manufacturing cycle, low cost and greatly reduced bed weight of the weldment structure.

Description of drawings

Fig. 1 is the complete machine structure schematic diagram of bed structure of the present utility model;

Fig. 2 is the three-dimensional structure schematic diagram of bed structure of the present utility model;

Fig. 3 is the front structural schematic diagram of bed structure of the present utility model;

Fig. 4 is a top view structural schematic diagram of the bed structure of the utility model;

Fig. 5 is a left view structural schematic diagram of the bed structure of the utility model;

Fig. 6 is a three-dimensional structural schematic diagram of the column in the bed structure of the utility model.

In the figure: 1. Base; 2. Column; 3. X-axis sliding table; 4. Y-axis sliding table; 5. Z-axis sliding table; 6. A-axis rotating shaft; 7. B-axis rotating workpiece table; 8. Spindle motor

Detailed ways

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

As shown in Figures 1 to 6, a five-axis engraving and milling machine body structure based on the combination of castings and weldments of the utility model includes a base 1 and a column 2, the base 1 is the bottom supporting part of the entire machine tool, and is installed with The column 2 and the Z-axis sliding table 5 etc. are a regular flat cuboid as a whole, with uniform force and small deformation, so they are welded by channel steel and fixed by reinforced sheet metal composite. The column 2 stands sideways on the upper surface of the base, and the X-axis slide table 3 is installed. The X-axis slide table 3 is connected to the Y-axis slide table 4. The Y-axis slide table 4 is connected to the A-axis shaft 6, and the A-axis shaft 6 is fixedly installed. A main shaft motor 8 is arranged, and a B-axis rotating workpiece table 7 is connected on the Z-axis slide table 5 .

In this embodiment, the base 1 is welded by 12.6-type channel steel and fixed by reinforced sheet metal composites. Eight channel steels are welded face to face in pairs to form the four legs of the base 1, and the remaining eight edges are formed by a pair of grooves. The steel is welded face to face, and a pair of transverse channel steel is added at an appropriate position in the middle of the upper surface. The same edge is used to install the Z guide rail, and four steel plates are welded at the other side and at the appropriate position in the middle to install the column 2. In the middle of the two sides Two channel steels are welded at appropriate positions to support the load of the middle steel plate on the upper surface and the beam, and appropriate reinforcement sheets are welded at the joints of each weldment to enhance the overall welding strength. Due to carrying all the weight of the X-axis sliding table 3 and other components and the external cutting dynamic load transmitted by the cutting spindle, the force is relatively large, which is the main deformation area of the bed structure, so the column 2 is made of gray cast iron. It is designed as a hollow structure, with cross-shaped ribs set on the wall of the inner cavity, including two rounds of ribs in the vertical direction consistent with the outline of the outer wall, and two rings of ribs in the horizontal direction consistent with the outline of the outer wall. There are four ribs at the bottom. There are two flat feet, the front two feet are set outside the cavity, surrounded by reinforcing ribs, the back two feet are set inside the cavity, and a rectangular window is opened on both sides for the installation of bolts.

The present invention is not limited to the embodiments described above. The above description of specific embodiments is intended to describe and illustrate the technical solution of the present utility model, and the above specific embodiments are only illustrative and not restrictive. Without departing from the purpose of the utility model and the scope protected by the claims, those skilled in the art can also make many forms of specific transformations under the inspiration of the utility model, and these all belong to the protection scope of the utility model Inside.

Claims (4)

1. a kind of five axis engraving and milling machine tool body structures being combined based on casting and weldment, which is characterized in that including pedestal and column, The column is cast by gray cast iron, and the column is erected in the base upper surface, and the base upper surface also passes through cunning Rail is connected with Z axis slide unit, and B axle turning of work piece platform is connected on the Z axis slide unit, and the column side is connected with X by sliding rail Axis slide unit is connected with Y-axis slide unit by sliding rail on X-axis slide unit, A axis shaft is connected on the Y-axis slide unit.

2. a kind of five axis engraving and milling machine tool body structures being combined based on casting and weldment, feature are existed according to claim 1 In the column is hollow structure, is provided with criss-crossing reinforcing ribs, the vertical direction of column inner cavity in four peripheral wall surfaces of column inner cavity It is respectively equipped with and the consistent reinforcing rib of outer wall profile in upper and horizontal direction.

3. a kind of five axis engraving and milling machine tool body structures being combined based on casting and weldment according to claim 1 or claim 2, feature It is, the column bottom surface includes four plane footing, is connect by the Interal fixation welded on bolt and pedestal.

4. a kind of five axis engraving and milling machine tool body structures being combined based on casting and weldment, feature are existed according to claim 1 It is formed by welding in, the pedestal by channel steel and sets that there are four supporting legs.