A double-spindle turning and milling combined machine tool

Abstract

The utility model belongs to the compound lathe technical field especially is a kind of double spindle turning and milling compound lathe, including lathe base, the upper fixed joint of lathe base has two symmetries air cylinder, is used to stretch and lower, the output of air cylinder is fixedly connected with pedestal, the one end fixed connection of pedestal has drive motor, the output of drive motor is fixedly connected with driving screw rod. The utility model, through symmetrical air cylinder drive pedestal lifting, can quickly adapt the height demand of the component to be processed that mechanical arm clamps, save the tediousness of manual adjustment;The cooperation of driving screw rod and bearing seat and the guiding structure of sliding block sliding rail guarantee the accuracy and stability of the movement of processing cutting head, reduce clamping error and processing shake;Double spindle collaborative work further reduces process interval, improves the precision component processing efficiency, and guarantees the machining size accuracy and surface quality, effectively solve the problem of low efficiency and poor precision of traditional lathe.

Description

Technical Field

[0001] This utility model relates to the field of composite machine tool technology, specifically a dual-spindle turning and milling composite machine tool. Background Technology

[0002] Milling-turning machines, as key equipment integrating turning and milling functions, are widely used in precision parts machining. Traditional single-spindle milling-turning machines require frequent stops to change fixtures or adjust workpiece clamping positions to complete multiple machining operations. This not only prolongs the production cycle but also easily leads to positioning errors due to multiple clamping, resulting in decreased parts machining accuracy and making it difficult to meet the demands of high-precision, high-efficiency mass production.

[0003] Meanwhile, while some existing twin-spindle milling and turning machines can reduce the number of clamping operations through the coordinated operation of the two spindles, they have obvious defects in their structural design. For example, their spindle height adjustment mostly relies on manual or simple mechanical structures, which are inefficient and inaccurate, and cannot quickly adapt to the height requirements of different sized parts to be machined. In addition, the horizontal movement mechanism of the spindle lacks a stable guiding structure, making it susceptible to shaking due to the machining cutting force, which leads to positioning deviation of the machining cutting head and further reduces the machining quality and stability.

[0004] As the manufacturing industry continues to demand higher precision and efficiency in parts processing, the aforementioned problems of traditional and existing twin-spindle milling and turning machines are becoming increasingly prominent, becoming key bottlenecks restricting production efficiency and product quality. Therefore, developing a twin-spindle milling and turning machine with efficient height adjustment capabilities and stable and precise movement guidance has become an important issue that urgently needs to be addressed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a dual-spindle turning and milling composite machine tool, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A dual-spindle turning and milling composite machine tool includes a machine tool base. Two symmetrical cylinders are fixedly connected to the upper part of the machine tool base for extending and lowering. The output end of each cylinder is fixedly connected to a base. One end of the base is fixedly connected to a drive motor. The output end of the drive motor is fixedly connected to a drive screw. A threaded block is threaded onto the drive screw. A mounting seat is fixedly connected to the upper end of the threaded block. A machining cutting head is mounted on the mounting seat with engaging bolts.

[0010] Furthermore, the two ends of the drive screw are rotatably connected to the bearing housing, which is embedded in the base.

[0011] Furthermore, a slider is fixedly installed at the bottom of the mounting base, and the slider is engaged and slidably connected to the slide rail.

[0012] Furthermore, the slide rail is fixedly mounted on the base.

[0013] Furthermore, the slide rails are arranged symmetrically on both sides of the base.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a dual-spindle turning and milling composite machine tool, which has the following beneficial effects:

[0016] This invention utilizes symmetrical cylinders to drive the base to lift and lower, enabling it to quickly adapt to the height requirements of the parts to be processed held by the robotic arm, eliminating the hassle of manual adjustment. The cooperation between the drive screw and the bearing seat, along with the guiding structure of the slider rail, ensures the accuracy and stability of the cutting head movement, reducing clamping errors and processing wobbling. The collaborative operation of the dual spindles further reduces the process interval, improving the processing efficiency of precision parts while ensuring dimensional accuracy and surface quality, effectively solving the problems of low efficiency and poor precision in traditional machine tools. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the single spindle milling structure of this utility model;

[0019] Figure 3 This is a side view of the single spindle milling structure of this utility model.

[0020] In the diagram: 1. Machine tool base; 2. Cylinder; 3. Base; 4. Drive motor; 5. Drive screw; 6. Bearing housing; 7. Threaded block; 8. Mounting seat; 9. Machining cutting head; 10. Slider; 11. Slide rail. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] like Figure 1-3 As shown in the figure, an embodiment of the present invention proposes a dual-spindle milling and turning composite machine tool, including a machine tool base 1. Two symmetrical cylinders 2 are fixedly connected to the upper part of the machine tool base 1 for extension and descent. The output end of the cylinder 2 is fixedly connected to a base 3. The extension and retraction of the cylinder 2 drives the base 3 to rise and fall as a whole, thereby driving all related processing parts on the base 3 to adjust their height synchronously. This allows for quick adaptation to the processing requirements of different heights of the parts to be processed held by the robotic arm, ensuring that the initial height of the cutting head 9 is accurately aligned with the part to be processed, thus laying the positional foundation for subsequent processing.

[0024] One end of the base 3 is fixedly connected to a drive motor 4, and the output end of the drive motor 4 is fixedly connected to a drive screw 5. A threaded block 7 is threaded onto the drive screw 5, and a mounting seat 8 is fixedly connected to the upper end of the threaded block 7. A machining cutting head 9 is mounted on the mounting seat 8 with a locking bolt. After the drive motor 4 is started, the power is converted into horizontal linear motion of the threaded block 7 through the drive screw 5. The machining cutting head 9 is driven to move precisely along the axial direction of the drive screw 5 through the mounting seat 8, realizing milling and turning operations on the workpiece held by the robotic arm at different horizontal positions. The bearing seat 6 ensures the stability of the drive screw 5 when it rotates, avoids screw deviation which would cause a decrease in the movement accuracy of the machining cutting head 9, and ensures the machining dimensional accuracy.

[0025] When this dual-spindle milling and turning machine tool is in operation, the robotic arm first clamps and fixes the part to be processed and places it in the processing area above the machine tool base 1. After the machine tool is started, two cylinders 2 symmetrically arranged above the machine tool base 1 move back and forth, driving the base 3 fixed to the output end of the cylinders 2 to rise and fall, thereby adjusting the height of the processing structure on the base 3 to adapt to the processing position requirements of the part to be processed. After the height adjustment is completed, the drive motor 4 fixed at one end of the base 3 starts, driving the drive screw 5 connected to its output end to the bearing seat embedded in the base 3. The drive screw 5 rotates stably because it is threadedly connected to the threaded block 7. The rotation of the drive screw 5 is converted into linear movement of the threaded block 7 along the axial direction of the drive screw 5. At the same time, the mounting seat 8 fixed at the upper end of the threaded block 7 moves synchronously with the threaded block 7. The slider 10 fixed at the bottom of the mounting seat 8 engages and slides on the slide rails 11 fixed on both sides of the base 3, providing guidance and stable support for the movement of the mounting seat 8. Finally, the machining cutting head 9, which is mounted on the mounting seat 8 by the engaging bolts, moves precisely to the part to be machined, completing the turning and milling operation.

[0026] like Figure 2As shown, in some embodiments, the two ends of the drive screw 5 are rotatably connected to the bearing housing 6, and the bearing housing 6 is embedded in the base 3; the bearing structure inside the bearing housing 6 can reduce the frictional resistance when the drive screw 5 rotates, and at the same time limit the radial displacement of the drive screw 5, so as to avoid radial shaking or offset of the drive screw 5 when rotating at high speed or bearing processing load, and ensure that the drive screw 5 always rotates stably around its own axis.

[0027] like Figure 3 As shown, in some embodiments, a slider 10 is fixedly installed at the bottom of the mounting base 8, and the slider 10 is engaged and slidably connected to the slide rail 11. When the drive motor 4 drives the mounting base 8 to move through the drive screw 5 and the threaded block 7, the slider 10 will slide along the predetermined trajectory of the slide rail 11, thereby strictly constraining the movement direction of the mounting base 8, avoiding the mounting base 8 from deviating or shaking due to machining cutting force, its own weight, or transmission error, and ensuring that the machining cutting head 9 on the mounting base 8 can accurately align with the machining position of the part to be processed, thus ensuring machining accuracy.

[0028] like Figure 3 As shown, in some embodiments, the slide rail 11 is fixedly mounted on the base 3.

[0029] like Figure 3 As shown, in some embodiments, the slide rail 11 is arranged on both sides of the base 3 symmetrically; the slider 10 at the bottom of the mounting base 8 engages and slides with the slide rail 11, and the slide rail 11 is fixed to the base 3 and symmetrically distributed, which can simultaneously constrain the movement trajectory of the slider 10 from both sides, further limiting the swaying or offset of the mounting base 8 in the direction perpendicular to the slide rail 11. Compared with a single-sided slide rail 11, the symmetrical layout makes the movement guidance of the mounting base 8 more precise, ensuring that the machining cutting head 9 can stably align with the part to be processed, and ensuring the machining dimensional accuracy.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dual-spindle turning and milling composite machine tool, comprising a machine tool base (1), characterized in that: Two symmetrical cylinders (2) are fixedly connected above the machine tool base (1) for extension and descent. The output end of the cylinder (2) is fixedly connected to a base (3). One end of the base (3) is fixedly connected to a drive motor (4). The output end of the drive motor (4) is fixedly connected to a drive screw (5). A threaded block (7) is threaded onto the drive screw (5). An mounting seat (8) is fixedly connected to the upper end of the threaded block (7). A machining cutting head (9) is mounted on the mounting seat (8) with a locking bolt.

2. The dual-spindle turning and milling composite machine tool according to claim 1, characterized in that: The two ends of the drive screw (5) are rotatably connected in the bearing housing (6), which is embedded in the base (3).

3. The dual-spindle turning and milling composite machine tool according to claim 1, characterized in that: A slider (10) is fixedly installed at the bottom of the mounting base (8), and the slider (10) is engaged and slidably connected to the slide rail (11).

4. A dual-spindle turning and milling composite machine tool according to claim 3, characterized in that: The slide rail (11) is fixedly installed on the base (3).

5. A dual-spindle turning and milling composite machine tool according to claim 3, characterized in that: The slide rail (11) is set on both sides of the base (3).

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