Flexible composite machine tool suitable for truss robot

Abstract

The utility model relates to the technical field of machine tools, and discloses a flexible composite machine tool suitable for a truss robot, which comprises a base, a first vertical seat and a second vertical seat, a vertical spindle box capable of lifting along the Z direction is arranged on the first vertical seat, and a horizontal spindle box capable of lifting along the Z direction is arranged on the second vertical seat. A Y-direction sliding table is arranged at the position, located between the first vertical base and the second vertical base, of the top face of the base, and a positioning assembly is arranged on the Y-direction sliding table. When the first vertical seat and the second vertical seat are both far away from the rotary workbench to the limit position, the distance of the rotary workbench exceeding the vertical spindle box in the X direction is configured to be L1, the distance of the rotary workbench exceeding the horizontal spindle box in the X direction is configured to be L2, L1 is larger than or equal to 25 mm and smaller than or equal to 45 mm, and L1 / L2 is configured to be 0.2-0.25. The composite machine tool can be matched with a truss robot to achieve automatic feeding and discharging, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to a flexible composite machine tool suitable for gantry robots. Background Technology

[0002] Vertical machine tools (vertical machining centers) are a common type of machining equipment. The spindle of a vertical machine tool is perpendicular to the horizontal positioning assembly. The workpiece is mounted on the positioning assembly, and cutting tools are installed on the spindle to perform multi-functional machining operations such as turning, milling, boring, and drilling. They are widely used. To facilitate multi-faceted machining of workpieces, some modern composite machine tools combine a horizontal spindle head with a vertical spindle head, reducing the number of workpiece clamping operations and improving machining efficiency.

[0003] To improve the ease of installing workpieces on positioning components, some composite machine tools are now used in conjunction with five-axis articulated robots for loading and unloading. Although these articulated robots are very flexible, they are very expensive. As for three-axis gantry robots, the commonly used composite machine tools are not suitable because the gantry robot will interfere with the spindle box when loading and unloading in the Z direction, thus making it impossible to load and unload normally. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, this utility model provides a flexible composite machine tool suitable for gantry robots.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flexible composite machine tool suitable for gantry robots includes a base, a first stand at one end of the base, and a second stand at the other end of the base. The first stand is slidably connected to the base via a first X-axis slide, and the second stand is slidably connected to the base via a second X-axis slide. The first stand has a vertical spindle box that can be raised and lowered along the Z-axis, and the second stand has a horizontal spindle box that can be raised and lowered along the Z-axis. A Y-axis slide is provided on the top surface of the base between the first and second stands, and a positioning component is provided on the Y-axis slide. When both the first and second stands are moved away from the positioning component to their extreme positions, the distance by which the positioning component extends beyond the vertical spindle box along the X-axis is configured as L1, and the distance by which the positioning component extends beyond the horizontal spindle box along the X-axis is configured as L2, wherein 25mm≤L1≤45mm, and L1 / L2 is configured as 0.2-0.25, so that a space for the gantry robot to translate in the Y-axis and move in the Z-axis is formed between the vertical spindle box and the horizontal spindle box.

[0007] By adopting the above technical solution: there is suitable space between the vertical spindle box and the horizontal spindle box for mounting the gantry robot, and the gantry robot will not interfere with the horizontal spindle box or the vertical spindle box when loading and unloading; and by reasonably configuring L1 and L2, the overall structure of the composite machine tool is more compact and stable while meeting the loading and unloading requirements of the gantry robot; the composite machine tool uses positioning components, which can process different positions on the workpiece, reduce repeated positioning of the workpiece, and effectively improve processing efficiency and processing accuracy.

[0008] Preferably, the positioning component is configured as a rotary table or a rotary positioning fixture. Using a rotary table or rotary positioning fixture for workpiece positioning makes workpiece processing more flexible and maneuverable, and the rotation method reduces the stroke of the first and second supports.

[0009] Preferably, when the first stand approaches the positioning assembly to its limit position and the positioning assembly moves to the center of the Y-axis slide, the axis of the vertical spindle box passes through the center of the positioning assembly. Since the workpiece on the positioning assembly can rotate, the workpiece can be machined in all directions when the axis of the vertical spindle box passes through the center of the positioning assembly, thereby minimizing the travel of the first stand in the X-axis and reducing the X-axis dimension of the machine tool. This makes the machine tool structure more compact while meeting machining requirements.

[0010] Preferably, the connection surface between the first spindle box and the first stand is used as the reference surface. The distance from the axis of the vertical spindle box to the reference surface is L3, and the distance from the vertical plane containing the outermost end of the vertical spindle box to the reference surface is L4. The L3 / L4 ratio is configured to be 0.75-0.87. This arrangement minimizes the distance between the axis of the vertical spindle box and its outer end, thereby reducing the travel of the first stand in the X-direction. This reduces the size of the machine tool in the X-direction, thus reducing the overall volume; furthermore, the shorter travel results in higher precision.

[0011] Preferably, when the first stand moves to a position far from the extreme position of the positioning component, the X-direction distance of the center of the positioning component from the reference plane is L5, and L4 / L5 is configured to be 0.55-0.68.

[0012] Preferably, when the second support approaches the positioning component to its limit position, the spindle end face of the horizontal spindle box is coplanar with the side of the positioning component near the second support. This minimizes the stroke of the second support while still satisfying the machining requirements of the horizontal spindle box, thereby improving machining accuracy and reducing the overall size of the machine tool in the X-axis.

[0013] Preferably, a tool magazine rack is provided on the side of the base corresponding to the first and second uprights, and a tool magazine is provided on the tool magazine rack. The tool magazine can automatically change tools.

[0014] Preferably, a first balancing cylinder is provided between the first support and the vertical spindle box to balance the weight of the vertical spindle box, and a second balancing cylinder is provided between the second support and the horizontal spindle box to balance the weight of the horizontal spindle box. Both the first and second balancing cylinders are balancing cylinders, used to balance the weight of the vertical and horizontal spindle boxes respectively, so as to improve machining accuracy.

[0015] Therefore, this utility model can be used in conjunction with gantry robots to improve workpiece processing efficiency through automated loading and unloading by robots; the vertical and horizontal spindle boxes of the composite machine tool work together to reduce the number of workpiece clamping operations and improve processing accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0017] Figure 2 for Figure 1 Another perspective view.

[0018] Figure 3 This is a schematic diagram showing the first and second supports moving to their extreme positions away from the positioning components.

[0019] Figure 4 This is a schematic diagram showing the first stand moving towards the positioning component to its extreme position.

[0020] Figure 5 This is a schematic diagram showing the second support moving towards the positioning component to its extreme position.

[0021] Figure 6 This is a schematic diagram illustrating the combined use of a gantry robot and this utility model. Detailed Implementation

[0022] To make the technical problem to be solved, the technical solution, and the beneficial technical effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the scope of protection of the present utility model.

[0023] It should be understood that the terms "first," "second," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly specifying the number of technical features indicated. Features specified as "first" or "second" may expressly or implicitly indicate that at least one of those features is included.

[0024] like Figures 1-3The diagram illustrates a flexible composite machine tool suitable for gantry robots, comprising a base 1, a first support 2 located at one end of the base 1, and a second support 3 located at the other end of the base 1. The first support 2 is slidably connected to the base 1 via a first X-axis slide 20, and the second support 3 is slidably connected to the base 1 via a second X-axis slide 30. The first support 2 is equipped with a vertical spindle box 4 that can be raised and lowered along the Z-axis, and the second support 3 is equipped with a horizontal spindle box 5 that can be raised and lowered along the Z-axis. The top surface of the base 1 is located between the first support 2 and the second support 3. The part is provided with a Y-axis slide 6, and a positioning component 7 is provided on the Y-axis slide 6. When the first stand 2 and the second stand 3 are both far away from the positioning component 7 to the limit position, the positioning component 7 is configured to extend beyond the vertical spindle box 4 by a distance L1 in the X direction, and the positioning component 7 is configured to extend beyond the horizontal spindle box 5 by a distance L2 in the X direction. Among them, 25mm≤L1≤45mm, and L1 / L2 is configured to be 0.2-0.25, so that a space for the gantry robot to translate in the Y direction and lift in the Z direction is formed between the vertical spindle box 4 and the horizontal spindle box 5.

[0025] In some embodiments, the positioning component 7 is configured as a rotary table or a rotary positioning fixture. When the workpiece is clamped by the rotary table or the rotary positioning fixture, it can drive the middle part to rotate. In this embodiment, a rotary table is used.

[0026] like Figure 3 As shown, the connection surface between the first spindle box and the first support 2 is used as the reference surface. Figure 3 The vertical plane shown at point K1 is the reference plane. The distance from the axis of the vertical spindle box 4 to the reference plane is L3, and the distance from the vertical plane containing the outermost end of the vertical spindle box 4 to the reference plane is L4. The ratio of L3 to L4 is configured to be 0.75-0.87. When the first support 2 moves to a position far from the extreme position of the positioning component 7, the X-direction distance of the center of the positioning component 7 from the reference plane is L5, and the ratio of L4 to L5 is configured to be 0.55-0.68.

[0027] In some embodiments, L1=30mm, L2=135mm, L3=1200mm, L4=1500mm, L5=2300mm, and L6=1400mm.

[0028] like Figure 4 As shown, when the first stand 2 approaches the positioning component 7 to its limit position and the positioning component 7 moves to the center of the Y-axis slide 6, the axis of the vertical spindle box 4 passes through the center of the positioning component 7. The center of the positioning component 7 refers to the rotation center.

[0029] like Figure 5 As shown, when the second support 3 approaches the positioning component 7 to its limit position, the spindle end face of the horizontal spindle box 5 is coplanar with the side of the positioning component 7 near the second support 3.

[0030] Tool magazine holders 8 are provided on the side of the base 1, corresponding to the first upright 2 and the second upright 3, and tool magazines 9 are provided on the tool magazine holders 8; a first balancing cylinder 10 is provided between the first upright 2 and the vertical spindle box 4 to balance the weight of the vertical spindle box 4, and a second balancing cylinder 11 is provided between the second upright 3 and the horizontal spindle box 5 to balance the weight of the horizontal spindle box 5.

[0031] Referring to the accompanying drawings, the principle of this utility model is as follows: Figure 6 As shown, the gantry robot 12 is positioned between the first and second supports. When loading is required onto the rotary table, the rotary table moves along the Y-axis to a suitable position (generally moving to the end furthest from the tool magazine to prevent tool magazine interference). The gantry robot descends along the Z-axis to the rotary table, where the fixtures on the rotary table clamp the workpiece, and the gantry rises to its reset position. Through the vertical and horizontal spindle boxes in conjunction with the rotation of the rotary table, multi-faceted machining of the workpiece is achieved. This type of composite machine tool can automatically load and unload materials with the gantry robot, and can perform machining on different parts of the workpiece through the vertical and horizontal spindle boxes, reducing the number of workpiece clamping operations and improving machining accuracy. By appropriately configuring the dimensions of L1, L2, L3, L4, L5, and L6, the travel of the first and second supports is minimized while satisfying the loading and unloading requirements of the gantry robot, thereby improving machining accuracy. Simultaneously, the overall size of the composite machine tool in the X-axis is reduced, resulting in a more compact structure and smaller size.

[0032] In the description of this utility model, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, and the other end are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the purpose of more clearly describing the technical solution of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0033] Although specific embodiments of the present invention are described in detail herein, they are given for illustrative purposes only and should not be construed as limiting the scope of the present invention. Various substitutions, alterations, and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A flexible composite machine tool suitable for gantry robots, comprising a base (1), a first stand (2) disposed at one end of the base (1), and a second stand (3) disposed at the other end of the base (1), wherein the first stand (2) is slidably connected to the base (1) via a first X-axis slide (20), and the second stand (3) is slidably connected to the base (1) via a second X-axis slide (30), characterized in that, The first stand (2) is provided with a vertical spindle box (4) that can be raised and lowered along the Z direction, and the second stand (3) is provided with a horizontal spindle box (5) that can be raised and lowered along the Z direction. The top surface of the base (1) located between the first stand (2) and the second stand (3) is provided with a Y-axis slide (6), and the Y-axis slide (6) is provided with a positioning component (7) for workpiece positioning. When the first stand (2) and the second stand (3) are both far away from the positioning component (7) to the limit position, the distance of the positioning component (7) beyond the vertical spindle box (4) in the X direction is configured as L1, and the distance of the positioning component (7) beyond the horizontal spindle box (5) in the X direction is configured as L2, wherein 25mm≤L1≤45mm, and L1 / L2 is configured as 0.2-0.25, so that a space for the gantry robot to translate in the Y direction and lift in the Z direction is formed between the vertical spindle box (4) and the horizontal spindle box (5).

2. A flexible composite machine tool suitable for gantry robots according to claim 1, characterized in that, The positioning component (7) is configured as a rotary table or a rotary positioning fixture.

3. A flexible composite machine tool suitable for gantry robots according to claim 2, characterized in that, When the first stand (2) approaches the positioning component (7) to its limit position and the positioning component (7) moves to the center of the Y-axis slide (6), the axis of the vertical spindle box (4) passes through the center of the positioning component (7).

4. A flexible composite machine tool suitable for gantry robots according to claim 1, 2, or 3, characterized in that, Using the connection surface between the first spindle box and the first stand (2) as the reference surface, the distance from the axis of the vertical spindle box (4) to the reference surface is L3, and the distance from the vertical plane where the outermost end of the vertical spindle box (4) is located to the reference surface is L4. The L3 / L4 is configured to be 0.75-0.

87.

5. A flexible composite machine tool suitable for gantry robots according to claim 4, characterized in that, When the first stand (2) moves to the extreme position away from the positioning component (7), the center distance of the positioning component (7) from the reference plane in the X direction is L5, and L4 / L5 is configured to be 0.55-0.

68.

6. A flexible composite machine tool suitable for gantry robots according to claim 1, characterized in that, When the second stand (3) approaches the positioning component (7) to its limit position, the spindle end face of the horizontal spindle box (5) is coplanar with the side of the positioning component (7) that is close to the second stand (3).

7. A flexible composite machine tool suitable for gantry robots according to claim 1, characterized in that, The base (1) is provided with a tool magazine rack (8) on the side corresponding to the first stand (2) and the second stand (3), and the tool magazine rack (8) is provided with a tool magazine (9).

8. A flexible composite machine tool suitable for gantry robots according to claim 1, characterized in that, A first balancing cylinder (10) for balancing the weight of the vertical spindle box (4) is provided between the first stand (2) and the vertical spindle box (4), and a second balancing cylinder (11) for balancing the weight of the horizontal spindle box (5) is provided between the second stand (3) and the horizontal spindle box (5).

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