Composite guide rail for main shaft of planer type milling machine

Abstract

The utility model discloses a planer type milling machine main shaft composite guide rail which comprises a workbench, two sides of the workbench are connected with a gantry in a sliding mode, one side of the gantry is connected with an X-axis sliding block in a sliding mode, one face, away from the gantry, of the X-axis sliding block is connected with a Z-axis sliding block in a sliding mode, and one side, away from the X-axis sliding block, of the Z-axis sliding block is fixedly provided with a main shaft assembly. Two sets of connecting rods are fixed to the other side of the Z-axis sliding block, and one end of each connecting rod is fixedly connected with a limiting sliding block. The workbench, the gantry, the X-axis sliding block, the Z-axis sliding block, the main shaft assembly, the connecting rod, the limiting sliding block and the limiting sliding groove are arranged, due to the arrangement of the gantry, the X-axis sliding block and the Z-axis sliding block, the main shaft assembly can move in the X-axis direction, the Y-axis direction and the Z-axis direction, in the sliding process of the Z-axis sliding block on the X-axis sliding block, the limiting sliding block slides along the limiting sliding groove, and sliding of the limiting sliding block is limited through the limiting sliding groove; and therefore, the shaking amplitude of the Z-axis sliding block in the sliding process is reduced, and the movement of the main shaft assembly on the Z axis is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of guide rails for milling machines, in particular to a composite guide rail for a main shaft of a gantry milling machine. Background Art

[0002] A milling machine mainly refers to a machine that uses a milling cutter to process various surfaces of a workpiece. Usually, the rotation of the milling cutter is the main motion, and the movement of the workpiece and the milling cutter is the feed motion. It can process planes, grooves, various curved surfaces, gears, etc.

[0003] In the prior art, the Z-axis moves in a 90° vertical straight line relative to the X-axis and the Y-axis. Therefore, the guide surface of the Z-axis suffers from large wear and tear, and the geometric accuracy of the spindle slide unit is difficult to maintain for a long time, thereby reducing the machining accuracy of the spindle assembly. Utility Model Content

[0004] The utility model aims to provide a composite spindle guide rail for a gantry milling machine to solve the problem in the prior art that the guide rail surface of the Z-axis is relatively worn out, the geometric accuracy of the spindle slide unit is difficult to maintain for a long time, and the machining accuracy of the spindle assembly is reduced.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gantry milling machine spindle composite guide rail, comprising a worktable, gantries are slidably connected to both sides of the worktable, an X-axis slider is slidably connected to one side of the gantry, a Z-axis slider is slidably connected to the side of the X-axis slider away from the gantry, a spindle assembly is fixed to the side of the Z-axis slider away from the X-axis slider, and two groups of connecting rods are fixed to the other side of the Z-axis slider, one end of the connecting rod is fixedly connected to a limit slider, and limit sliding grooves corresponding to the position of the limit slider are provided on both sides of the X-axis slider.

[0006] Preferably, two guide rails are fixedly provided on a side of the X-axis slider away from the gantry, and a slide groove corresponding to the position of the guide rail is fixedly provided on one side of the Z-axis slider.

[0007] Preferably, the guide rail and the slide groove are arc-shaped.

[0008] Preferably, both ends of the limiting sliding block are provided with inclined surfaces, and the limiting sliding groove port is provided with an inclined groove that matches the shape of the inclined surfaces.

[0009] Preferably, support legs are fixedly connected to the four corners of the lower surface of the workbench.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model is provided with a workbench, a gantry, an X-axis slider, a Z-axis slider, a spindle assembly, a connecting rod, a limit slider, and a limit slide groove. The arrangement of the gantry, the X-axis slider, and the Z-axis slider enables the spindle assembly to move in the X, Y, and Z axes. When the Z-axis slider slides on the X-axis slider, the limit slider slides along the limit slide groove, and the limit slide groove limits the sliding of the limit slider, thereby reducing the jitter amplitude in the sliding process of the Z-axis slider, so that the movement of the spindle assembly in the Z axis is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the enlarged structure of part A of the utility model;

[0015] Figure 3 It is a schematic diagram of the limiting slide groove and the sliding block structure of the utility model.

[0016] In the figure: 1. workbench; 2. gantry; 3. X-axis slider; 4. Z-axis slider; 5. guide rail; 6. slide groove; 7. spindle assembly; 8. limit slide groove; 9. connecting rod; 10. limit slider; 11. inclined plane; 12. inclined groove; 13. support leg. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2 In the embodiment of the utility model, a gantry milling machine spindle composite guide rail comprises a workbench 1, the workbench 1 is used to provide a working place for the milling cutter to process the workpiece, the two sides of the workbench 1 are slidably connected with a gantry 2, the gantry 2 is used to install and support the spindle assembly 7, the gantry 2 slides on the workbench 1 to realize the movement of the spindle assembly 7 on the Y axis, the gantry 2 is slidably connected with an X-axis slider 3 on one side, the X-axis slider 3 slides on the gantry 2 to realize the movement of the spindle assembly 7 on the X axis, and the four corners of the lower surface of the workbench 1 are fixedly connected with support legs 13, and the support legs 13 are used to support the workbench 1 from being in contact with the ground to prevent the ground from being eroded by moisture;

[0019] See also Figure 1-3 , the side of the X-axis slider 3 away from the gantry 2 is slidably connected with the Z-axis slider 4, and the side of the Z-axis slider 4 away from the X-axis slider 3 is fixed with a spindle assembly 7, and the Z-axis slider 4 slides on the X-axis slider 3 to realize the movement of the spindle assembly 7 in the Z-axis, and the movement on the Z-axis is a 90° vertical straight line, which causes the Z-axis slider 4 to easily jitter when sliding, affecting the machining accuracy of the spindle assembly 7, and two groups of connecting rods 9 are fixed on the other side of the Z-axis slider 4, and one end of the connecting rod 9 is fixedly connected to a limiting slider 10, and limiting slide grooves 8 corresponding to the position of the limiting slider 10 are provided on both sides of the X-axis slider 3. When the Z-axis slider 4 slides on the X-axis slider 3, the limiting slider 10 slides along the limiting slide groove 8, and the limiting slide groove 8 limits the sliding of the limiting slider 10, thereby reducing the jitter amplitude of the Z-axis slider 4 during the sliding process, so that the movement of the spindle assembly 7 in the Z-axis is more stable;

[0020] See also Figure 1-2 In order to realize the sliding connection between the Z-axis slider 4 and the X-axis slider 3, two guide rails 5 are fixedly provided on the side of the X-axis slider 3 away from the gantry 2, and a slide groove 6 corresponding to the position of the guide rail 5 is fixedly provided on one side of the Z-axis slider 4. The slide groove 6 slides along the guide rail 5 to realize the stability of the Z-axis slider 4 sliding on the X-axis slider 3;

[0021] See also Figure 1-2 The guide rail 5 and the slide groove 6 are arc-shaped. The arc-shaped guide rail 5 and the slide groove 6 make the slide groove 6 slide along the guide rail 5 more smoothly. Too many edges and corners are prone to increase wear;

[0022] See also Figure 3 , inclined surfaces 11 are provided at both ends of the limit slider 10, and an inclined groove 12 matching the shape of the inclined surface 11 is opened at the end of the limit slide groove 8. When the limit slider 10 slides along the limit slide groove 8, only the inclined surface 11 contacts the surface of the inclined groove 12 to realize the limiting of the limit slide groove 8 on the limit slider 10, thereby reducing the contact area between the limit slider 10 and the limit slide groove 8, thereby reducing the sliding friction, and avoiding the friction generated by the sliding between the limit slider 10 and the limit slide groove 8 to hinder the sliding of the Z-axis slider 4 on the X-axis slider 3.

[0023] The working principle and use process of the utility model are as follows: the gantry 2 slides on the workbench 1 to realize the movement of the spindle assembly 7 on the Y axis, the X-axis slider 3 slides on the gantry 2 to realize the movement of the spindle assembly 7 on the X axis, the slide groove 6 slides along the guide rail 5, and then the Z-axis slider 4 slides on the X-axis slider 3 to realize the movement of the spindle assembly 7 on the Z axis. The movement on the Z axis is a 90° vertical straight line, which causes a large loss in the sliding surface of the guide rail 5 and the slide groove 6, resulting in the Z-axis slider 4 being prone to jitter when sliding, affecting the processing accuracy of the spindle assembly 7, and further affecting the product quality. During the sliding process of the Z-axis slider 4 on the X-axis slider 3, the limit slider 10 slides along the limit slide groove 8, and the limit slide groove 8 limits the sliding of the limit slider 10, thereby reducing the jitter amplitude during the sliding process of the Z-axis slider 4, making the movement of the spindle assembly 7 on the Z axis more stable. During the sliding of the limit slider 10 along the limit slot 8, only the inclined surface 11 contacts the surface of the inclined slot 12 to realize the limiting of the limit slider 10 by the limit slot 8, thereby reducing the contact area between the limit slider 10 and the limit slot 8, thereby reducing the sliding friction, and avoiding the friction generated by the sliding between the limit slider 10 and the limit slot 8 to hinder the sliding of the Z-axis slider 4 on the X-axis slider 3.

[0024] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite guide rail for a main spindle of a gantry milling machine, comprising a worktable (1), two sides of the worktable (1) being slidably connected to a gantry (2), one side of the gantry (2) being slidably connected to an X-axis slider (3), characterized in that: The side of the X-axis slider (3) away from the gantry (2) is slidably connected to the Z-axis slider (4), the side of the Z-axis slider (4) away from the X-axis slider (3) is fixed with a spindle assembly (7), and the other side of the Z-axis slider (4) is fixed with two groups of connecting rods (9), one end of the connecting rod (9) is fixedly connected to a limit slider (10), and both sides of the X-axis slider (3) are provided with limit sliding grooves (8) corresponding to the position of the limit slider (10).

2. The composite guide rail for the main spindle of a gantry milling machine according to claim 1, characterized in that: Two guide rails (5) are fixedly provided on the side of the X-axis slider (3) away from the gantry (2), and a slide groove (6) corresponding to the position of the guide rail (5) is fixedly provided on one side of the Z-axis slider (4).

3. The composite guide rail for the main spindle of a gantry milling machine according to claim 2, characterized in that: The guide rail (5) and the slide groove (6) are arc-shaped.

4. The composite guide rail for the main spindle of a gantry milling machine according to claim 1, characterized in that: The limiting sliding block (10) has inclined surfaces (11) at both ends, and the limiting sliding groove (8) has an inclined groove (12) whose shape matches the inclined surface (11).

5. The composite guide rail for the main spindle of a gantry milling machine according to claim 1, characterized in that: Support legs (13) are fixedly connected at the four corners of the lower surface of the workbench (1).

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