Shaft seat structure of five-axis machining center

Abstract

The utility model discloses a shaft seat structure of a five-axis machining center, which comprises an integrated shaft seat body, and the integrated shaft seat body comprises a Y-axis shaft seat, a Z-axis shaft seat and a reinforcing frame. The Y-axis shaft seat and the Z-axis shaft seat are perpendicular to each other, a first fixing seat used for installing a Y-axis lead screw nut is arranged at the bottom of the Y-axis shaft seat, a plurality of threaded holes used for installing guide rails are formed in the two sides of the first fixing seat respectively, and a second fixing seat used for installing a Z-axis lead screw nut is arranged at the bottom of the Z-axis shaft seat. A plurality of threaded holes used for installing guide rails are distributed in the two sides of the second fixing base. The whole reinforcing frame is in a frame shape and located on the rear side of the Z-axis shaft seat and above the Y-axis shaft seat, the bottom of the reinforcing frame is connected with three edge portions of the Y-axis shaft seat, the front side of the reinforcing frame is connected with two edges of the Z-axis shaft seat, and the reinforcing frame, the Z-axis shaft seat and the Y-axis shaft seat form a box body with an opening in the top. The box body is divided into a high frame section with a higher height on the front side, a low frame section with a lower height on the rear side and a transition section between the high frame section and the low frame section, the two inclined sides of the top of the transition section are in butt joint with the high frame section and the low frame section respectively, and reinforcing partition plates for connecting the two sides are arranged between the transition section and the high frame section and between the transition section and the low frame section. Weight reduction windows are arranged on the side faces of the high frame section, the low frame section and the transition section.

Description

Technical Field

[0001] The utility model relates to a five-axis machining center, in particular to an axle seat structure of the five-axis machining center. Background Art

[0002] The five-axis machining center has five mutually perpendicular working axes, which can realize multi-directional and multi-angle processing of the workpiece. It is often used for the processing of complex curved surface parts. It can complete the processing of multiple surfaces of the workpiece in one setting, greatly improving the processing efficiency and accuracy.

[0003] The Z-axis seat of a five-axis machining center is usually set on the Y-axis seat. When the Y-axis seat moves, the Z-axis seat follows the movement to realize the linkage between the Z-axis and the Y-axis. The Z-axis seat and the Y-axis seat of an existing five-axis machining center are usually split structures. The Z-axis seat and the Y-axis seat are connected into a whole through a connecting plate and a connecting piece. The connecting plate is usually two triangular connecting plates that are fixedly connected to the two seats through connecting pieces. Not only is the rigidity of the connection poor, but the overall strength and rigidity after the connection are also deviated, which will not only have a certain impact on the machining accuracy, but may also cause loosening. Utility Model Content

[0004] The utility model provides an integrated shaft seat structure of a five-axis machining center which has a simple structure and can improve rigidity and strength.

[0005] The shaft seat structure of the five-axis machining center described in the utility model comprises an integrated shaft seat body, and the integrated shaft seat body comprises a Y-axis shaft seat, a Z-axis shaft seat and a reinforcement frame; the Y-axis shaft seat and the Z-axis shaft seat are perpendicular to each other, and a first fixing seat for mounting a Y-axis screw nut is provided at the bottom of the Y-axis shaft seat, and a plurality of threaded holes for mounting a guide rail are respectively provided on both sides of the first fixing seat, and a second fixing seat for mounting a Z-axis screw nut is provided at the bottom of the Z-axis shaft seat, and a plurality of threaded holes for mounting a guide rail are distributed on both sides of the second fixing seat; the reinforcement frame is frame-shaped as a whole and is located at Z The bottom of the frame is connected to the three edges of the Y-axis seat at the rear side of the Axis seat and above the Y-axis seat, and the front side of the frame is connected to the two edges of the Z-axis seat, and together with the Z-axis seat and the Y-axis seat, it forms a box with an open top, and the box is divided into a high frame section with a higher height on the front side, a low frame section with a lower height on the rear side, and a transition section between the high frame section and the low frame section, and the top of the transition section is inclined on both sides and connected to the high frame section and the low frame section respectively, and reinforcing partitions connecting the two sides are arranged between the transition section and the high frame section and the low frame section, and weight reduction windows are arranged on the sides of the high frame section, the low frame section and the transition section.

[0006] The shaft seat structure of the five-axis machining center described in the utility model, its Y-axis shaft seat, Z-axis shaft seat and the reinforcement frame connecting the Y-axis shaft seat and the Z-axis shaft seat are an integrated structure, and the height of the reinforcement frame is gradually reduced from front to back, and weight-reducing windows are arranged on the side of each section of the frame; its structure is relatively simple, and while ensuring the overall rigidity and strength of the shaft seat, it also avoids excessive weight of the shaft seat body, thereby reducing the inertia of the shaft seat movement, and a relatively smaller servo motor can be selected to drive it, thereby making the size of the entire five-axis machining center relatively smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The figure is a schematic diagram of the integrated shaft seat structure of a five-axis machining center.

[0008] Figure 2 It is a side view of the integrated shaft seat structure of a five-axis machining center.

[0009] Figure 3 This is a bottom view of the integrated shaft seat structure of a five-axis machining center.

[0010] Figure 4 This is a schematic diagram of the installation of an integrated shaft seat structure for a five-axis machining center. DETAILED DESCRIPTION

[0011] like Figure 1-4As shown, an integrated shaft seat structure of a five-axis machining center includes an integrated shaft seat body 1, wherein the integrated shaft seat body 1 includes a Y-axis shaft seat 2, a Z-axis shaft seat 3 and a reinforcement frame 4; the Y-axis shaft seat and the Z-axis shaft seat are perpendicular to each other, and a first fixing seat 5 for mounting a Y-axis screw nut is provided at the bottom of the Y-axis shaft seat, and a plurality of threaded holes for mounting a guide rail are respectively provided on both sides of the first fixing seat, and a second fixing seat 6 for mounting a Z-axis screw nut is provided at the bottom of the Z-axis shaft seat, and a plurality of threaded holes for mounting a guide rail are distributed on both sides of the second fixing seat; the reinforcement frame 4 is frame-shaped as a whole, It is located at the rear side of the Z-axis seat and above the Y-axis seat, with the bottom of its frame connected to the three edge parts of the Y-axis seat, and the front side of the frame connected to the two edges of the Z-axis seat, and together with the Z-axis seat and the Y-axis seat, it forms a box with an open top, and the box is divided into a high frame section with a higher height on the front side, a low frame section with a lower height on the rear side, and a transition section between the high frame section and the low frame section, and the top of the transition section is inclined on both sides and connected to the high frame section and the low frame section respectively, and reinforcing partitions 7 connecting the transition section and the high frame section and the low frame section are arranged between the transition section and the high frame section and the low frame section, and weight reduction windows 8 are arranged on the sides of the high frame section, the low frame section and the transition section. Its Y-axis shaft seat, Z-axis shaft seat and the reinforcement frame connecting the Y-axis shaft seat and the Z-axis shaft seat are an integrated structure, and the height of the reinforcement frame is gradually reduced from front to back, and weight-reducing windows are arranged on the side of each section of the frame; its structure is relatively simple, and while ensuring the overall rigidity and strength of the shaft seat, it also avoids excessive weight of the shaft seat body, thereby reducing the inertia of the shaft seat movement, and a relatively smaller servo motor can be selected to drive it, so that the size of the entire five-axis machining center can also be relatively smaller.

[0012] The wall thickness of the reinforcement frame gradually increases from top to bottom. The lower side wall of the reinforcement frame needs to be connected to the Y-axis seat and requires greater connection strength. Therefore, it is relatively thicker than the upper side wall to increase the connection strength and reduce the overall weight.

[0013] The Z-axis seat is located in the reinforcement frame and its thickness gradually increases from top to bottom. The bottom of the Z-axis seat needs to be connected to the Y-axis seat, which requires a greater connection strength. Therefore, the relatively thicker upper side wall can not only increase the connection strength, but also reduce the overall weight.

[0014] The first fixed seat is located in the middle of the bottom of the Y-axis seat. The Y-axis seat is provided with through holes 9 inside the reinforcement frame on both sides of the first fixed seat. The four inner sides of the through holes can support each other and reduce the overall weight, thereby reducing weight and improving overall strength.

[0015] The adjacent surfaces of the reinforcement frame are transitioned by arcs, and the reinforcement frame and the Y-axis shaft seat and the Z-axis shaft seat are transitioned by arcs. This can reduce the stress concentration of each component and improve the strength. At the same time, during the integrated pouring, the melt can have good fluidity in the cavity, and the mold cavity is not easy to generate internal stress and deformation.

Claims

1. A shaft seat structure for a five-axis machining center, comprising an integrated shaft seat body (1), characterized in that: The integrated shaft seat body (1) comprises a Y-axis shaft seat (2), a Z-axis shaft seat (3) and a reinforcement frame (4); the Y-axis shaft seat and the Z-axis shaft seat are perpendicular to each other; a first fixing seat (5) for mounting a Y-axis screw nut is provided at the bottom of the Y-axis shaft seat, and a plurality of threaded holes for mounting a guide rail are provided on both sides of the first fixing seat; a second fixing seat (6) for mounting a Z-axis screw nut is provided at the bottom of the Z-axis shaft seat, and a plurality of threaded holes for mounting a guide rail are distributed on both sides of the second fixing seat; the reinforcement frame (4) is frame-shaped as a whole, and is located at the rear side of the Z-axis shaft seat and the Y-axis shaft seat. Above the axis seat, the bottom of the frame is connected to the three edge parts of the Y-axis axis seat, and the front side of the frame is connected to the two edges of the Z-axis axis seat, and together with the Z-axis axis seat and the Y-axis axis seat, it forms a box body with an open top, the box body is divided into a high frame section with a higher height on the front side, a low frame section with a lower height on the rear side, and a transition section between the high frame section and the low frame section, the top of the transition section is inclined on both sides and is connected to the high frame section and the low frame section respectively, and a reinforcing partition (7) connecting the two sides is arranged between the transition section and the high frame section and the low frame section, and a weight reduction window (8) is arranged on the sides of the high frame section, the low frame section and the transition section.

2. The shaft seat structure of the five-axis machining center according to claim 1 is characterized in that: The wall thickness of the reinforcement frame increases gradually from top to bottom.

3. The shaft seat structure of the five-axis machining center according to claim 1 is characterized in that: The Z-axis shaft seat is located in the reinforcement frame and the thickness gradually increases from top to bottom.

4. The shaft seat structure of the five-axis machining center according to claim 1 is characterized in that: The first fixing seat is located at the middle position of the bottom of the Y-axis seat, and the Y-axis seat is provided with through holes (9) inside the reinforcement frame at the front and rear sides of the first fixing seat.

5. The shaft seat structure of the five-axis machining center according to claim 1 is characterized in that: Adjacent surfaces of the reinforcement frame are transitioned by circular arcs.

6. The shaft seat structure of the five-axis machining center according to claim 1 is characterized in that: The reinforcing frame and the Y-axis shaft seat and the Z-axis shaft seat are transitioned through arcs.

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