Composite machine tool structure suitable for truss robot

Abstract

The utility model relates to the technical field of machine tools, and discloses a composite machine tool structure suitable for a truss robot, which comprises a base, an X-direction sliding table arranged on the base, a first vertical seat arranged at one end of the X-direction sliding table on the base, a second vertical seat arranged at the other end of the X-direction sliding table on the base, a first spindle box arranged on the first vertical seat and capable of lifting in the Z direction, and a second spindle box arranged on the second vertical seat and capable of lifting in the Z direction. A second spindle box capable of ascending and descending in the Z direction is arranged on the second vertical base, a Y-direction sliding table is arranged on the X-direction sliding table, and a horizontal workbench is arranged on the Y-direction sliding table. The minimum distance between the first spindle box and the second spindle box is larger than the X-direction width of the workbench. When the workbench moves to the center position of the X-direction sliding table, the workbench is located between the vertical faces, corresponding to the minimum distance, of the first spindle box and the second spindle box. 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 composite machine tool structure 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 worktable. The workpiece is mounted on the worktable, 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 workpiece installation on the workbench, 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 composite machine tool structure suitable for gantry robots.

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

[0006] A composite machine tool structure suitable for gantry robots includes a base and an X-axis slide table mounted on the base. A first support is located at one end of the X-axis slide table on the base, and a second support is located at the other end of the X-axis slide table on the base. A first spindle box capable of Z-axis lifting is mounted on the first support table, and a second spindle box capable of Z-axis lifting is mounted on the second support table. A Y-axis slide table is mounted on the X-axis slide table, and a horizontal worktable is mounted on the Y-axis slide table. A space for Y-axis translation and Z-axis lifting of the gantry robot is formed between the first and second spindle boxes. The minimum distance between the first and second spindle boxes is greater than the X-axis width of the worktable. When the worktable moves to the center position of the X-axis slide table, the worktable is located between the vertical planes corresponding to the minimum distance between the first and second spindle boxes.

[0007] This type of composite machine tool is used in conjunction with a gantry robot, which is positioned between the first and second spindle boxes. The gantry robot can move along the Y-axis and move up and down along the Z-axis. When the worktable moves to the middle position of the X-axis slide, the gantry robot loads the workpiece. Then, the first and second spindle boxes process the workpiece on the worktable. After processing, the gantry robot unloads the workpiece. The gantry robot does not interfere with the spindle boxes during loading and unloading, resulting in better overall stability.

[0008] Preferably, the first spindle box is configured as a vertical spindle box, and the second spindle box is configured as a horizontal spindle box. When the worktable moves to its limit position towards the first support, the axis of the vertical spindle box passes through the center of the worktable. When the worktable moves to its limit position towards the second support, the vertical plane containing the center of the worktable extends beyond the vertical plane containing the outermost end of the horizontal spindle box by a distance L, wherein 10cm≤L≤20cm. The coordinated operation of the vertical and horizontal spindle boxes allows for application to most machining processes, improving overall versatility. Setting L to 10cm≤L≤20cm represents the distance the tool extends beyond the horizontal spindle box after connection, thus preventing interference between the gantry robot and the tool during material handling.

[0009] Preferably, the connection surface between the first spindle box and the first stand is used as the first reference plane. The distance from the axis of the first spindle box to the first reference plane is L1, and the distance from the vertical plane containing the outermost end of the first spindle box to the first reference plane is L2. The L1 / L2 ratio is configured to be 0.75-0.85. The position of the spindle axis in the first spindle box and the position of the outer end face of the first spindle box are limited to minimize the distance between the spindle axis and the outer end of the spindle box. Under the premise of meeting the conditions, the travel of the worktable on the X-axis slide is minimized as much as possible. This is to reduce the size of the machine tool in the X-axis to reduce the overall volume, and to ensure overall accuracy and stability.

[0010] Preferably, when the worktable moves to the center position of the X-axis slide, the distance from the center of the worktable to the first reference plane is L3, and L2 / L3 is configured to be 0.58-0.65. By limiting the dimensional and positional relationship between the worktable and the vertical spindle box, the X-axis travel is reduced to the minimum extent possible while ensuring that the gantry robot does not interfere, thereby reducing the overall size of the composite machine tool in the X-axis direction.

[0011] Preferably, the connection surface between the second spindle box and the second stand is used as the second reference surface, the distance between the first reference surface and the second reference surface is L4, the width dimension of the worktable in the X direction is configured as L5, and the L5 / L4 is configured as 0.32-0.37.

[0012] Preferably, both the first and second supports are equipped with tool magazines on their sides. The tool magazines facilitate automatic tool changing.

[0013] Preferably, a first balancing cylinder is provided between the first support and the first spindle box to balance the weight of the first spindle box, and a second balancing cylinder is provided between the second support and the second spindle box to balance the weight of the second spindle box. Both the first and second balancing cylinders are balancing cylinders, used to balance the weight of the first and second spindle boxes respectively.

[0014] Therefore, this utility model can be used in conjunction with a gantry robot to automatically realize loading and unloading; through the reasonable configuration of the first spindle box and the worktable, the X-axis dimension of the composite machine tool is minimized to the maximum extent while meeting the loading and unloading requirements of the gantry robot, making the whole more compact and stable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0016] Figure 2 for Figure 1 Top view.

[0017] Figure 3 This is a schematic diagram showing the worktable moving to the center position of the X-axis slide.

[0018] Figure 4 This is a schematic diagram showing the worktable moving to its limit position towards the first upright.

[0019] Figure 5 This is a schematic diagram of the present invention used in conjunction with a gantry robot. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] like Figures 1-4The composite machine tool structure shown is suitable for gantry robots, including a base 1 and an X-axis slide 4 mounted on the base 1. A first support 2 is provided at one end of the X-axis slide 4 on the base 1, and a second support 3 is provided at the other end of the X-axis slide 4 on the base 1. A first spindle box 5 that can be raised and lowered in the Z-axis is provided on the first support 2, and a second spindle box 6 that can be raised and lowered in the Z-axis is provided on the second support 3. A Y-axis slide 7 is provided on the X-axis slide 4, and a horizontal worktable 8 is provided on the Y-axis slide 7. A space for the gantry robot to translate in the Y-axis and move in the Z-axis is formed between the first spindle box 5 and the second spindle box 6. The minimum distance between the first spindle box 5 and the second spindle box 6 is greater than the X-axis width of the worktable 8. When the worktable 8 moves to the center position of the X-axis slide 4, the worktable 8 is located between the vertical planes corresponding to the minimum distance between the first spindle box 5 and the second spindle box 6.

[0023] like Figure 3 As shown, the minimum distance between the first spindle box and the second spindle box is L6. The vertical plane corresponding to the minimum distance between the first spindle box 5 and the second spindle box 6 refers to the vertical plane where the dashed lines at both ends of L6 are located.

[0024] The first spindle box 5 is configured as a vertical spindle box 50, and the second spindle box 6 is configured as a horizontal spindle box 60. When the worktable 8 moves to the limit position towards the first support 2, the axis of the vertical spindle box 50 passes through the center of the worktable 8. When the worktable 8 moves to the limit position towards the second support 3, the vertical plane containing the center of the worktable 8 extends beyond the vertical plane containing the outermost end of the horizontal spindle box 60 by a distance L, where 10cm≤L≤20cm. The connection surface between the first spindle box 5 and the first support 2 is taken as the first reference plane. The distance from the axis of the first spindle box 5 to the first reference plane is L1, and the distance from the vertical plane containing the outermost end of the first spindle box 5 to the first reference plane is L2. The ratio of L1 / L2 is configured to be 0.75-0.85. When the worktable 8 moves to the center position of the X-axis slide 4, the distance from the center of the worktable 8 to the first reference plane is L3. The ratio of L2 / L3 is configured to be 0.58-0.65.

[0025] The connection surface between the second spindle box 6 and the second stand 3 is used as the second reference surface. The distance between the first reference surface and the second reference surface is L4. The width dimension of the worktable 8 in the X direction is configured as L5. L5 / L4 is configured as 0.32-0.37.

[0026] like Figure 3 As shown, the position of the first reference plane is the vertical plane shown in s1, and the position of the second reference plane is the vertical plane shown in s2.

[0027] In some embodiments, L=15cm, L1=600mm, L2=800mm, L3=1275mm, L4=2200mm, L5=770mm, and L6=1400mm.

[0028] Tool magazines 9 are provided on the sides of the first support 2 and the second support 3; a first balancing cylinder 10 is provided between the first support 2 and the first spindle box 5 to balance the weight of the first spindle box 5, and a second balancing cylinder 11 is provided between the second support 3 and the second spindle box 6 to balance the weight of the second spindle box 6.

[0029] Referring to the accompanying drawings, the principle of this utility model is as follows: Figure 5 As shown, the gantry robot 12 is positioned between the first spindle box and the second spindle box; when material needs to be loaded onto the worktable, the worktable moves to... Figure 3 As shown in the middle position, the gantry robot descends along the Z-axis to the worktable and loads the workpiece onto it. The fixtures on the worktable hold the workpiece, and the gantry rises back to its original position. The workpiece is then processed through the first and second spindle boxes. After processing, the worktable moves again to the middle position. Figure 3 As shown in the middle position, the gripper at the bottom of the gantry grasps the processed workpiece. This type of composite machine tool can work with a gantry robot to achieve automatic loading and unloading, and can process different parts of the workpiece through the first and second spindle boxes, reducing the number of workpiece clamping operations and improving processing accuracy.

[0030] 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.

[0031] 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 composite machine tool structure suitable for gantry robots, comprising a base (1) and an X-axis slide (4) disposed on the base (1), wherein a first stand (2) is provided at one end of the X-axis slide (4) on the base (1), and a second stand (3) is provided at the other end of the X-axis slide (4) on the base (1), wherein a first spindle box (5) capable of Z-axis lifting is provided on the first stand (2), and a second spindle box (6) capable of Z-axis lifting is provided on the second stand (3), characterized in that, The X-axis slide (4) is provided with a Y-axis slide (7), and the Y-axis slide (7) is provided with a horizontal worktable (8). A space for the gantry robot to translate in the Y direction and lift in the Z direction is formed between the first spindle box (5) and the second spindle box (6). The minimum distance between the first spindle box (5) and the second spindle box (6) is greater than the X-direction width of the worktable (8); when the worktable (8) moves to the center position of the X-direction slide (4), the worktable (8) is located between the vertical planes corresponding to the minimum distance between the first spindle box (5) and the second spindle box (6).

2. The composite machine tool structure suitable for gantry robots according to claim 1, characterized in that, The first spindle box (5) is configured as a vertical spindle box (50), and the second spindle box (6) is configured as a horizontal spindle box (60). When the worktable (8) moves to the limit position towards the first stand (2), the axis of the vertical spindle box (50) passes through the center of the worktable (8); When the worktable (8) moves to the limit position of the second stand (3), the vertical plane where the center of the worktable (8) is located exceeds the vertical plane where the outermost end of the horizontal spindle box (60) is located by a distance L, where 10cm≤L≤20cm.

3. A composite machine tool structure suitable for gantry robots according to claim 2, characterized in that, The connection surface between the first spindle box (5) and the first stand (2) is used as the first reference surface. The distance from the axis of the first spindle box (5) to the first reference surface is L1, and the distance from the vertical plane where the outermost end of the first spindle box (5) is located to the first reference surface is L2. The L1 / L2 is configured to be 0.75-0.

85.

4. A composite machine tool structure suitable for gantry robots according to claim 3, characterized in that, When the worktable (8) moves to the center position of the X-axis slide (4), the distance from the center of the worktable (8) to the first reference plane is L3, and L2 / L3 is configured to be 0.58-0.

65.

5. A composite machine tool structure suitable for gantry robots according to claim 3, characterized in that, The connection surface between the second spindle box (6) and the second stand (3) is used as the second reference surface. The distance between the first reference surface and the second reference surface is L4. The width dimension of the worktable (8) in the X direction is configured as L5. The L5 / L4 is configured as 0.32-0.

37.

6. A composite machine tool structure suitable for gantry robots according to any one of claims 1-5, characterized in that, Both the first stand (2) and the second stand (3) are equipped with tool magazines (9) on their sides.

7. A composite machine tool structure suitable for gantry robots according to claim 1, characterized in that, A first balancing cylinder (10) for balancing the weight of the first spindle box (5) is provided between the first stand (2) and the first spindle box (5), and a second balancing cylinder (11) for balancing the weight of the second spindle box (6) is provided between the second stand (3) and the second spindle box (6).

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