Double-fixing tool machine tool suitable for long workpiece

Abstract

The utility model discloses a double-fixing tool machine tool suitable for a long workpiece, and relates to the technical field of numerical control machining equipment. The X-axis conveying mechanism comprises a rack and a workbench fixed to the rack, a first X-axis conveying mechanism and a second X-axis conveying mechanism are arranged on the workbench, the second X-axis conveying mechanism is located on one side of the first X-axis conveying mechanism, and main shaft mechanisms are arranged on the first X-axis conveying mechanism and the workbench. According to the main shaft mechanisms arranged on the first X-axis conveying mechanism and the working table, a first lead screw can be driven by a first X-axis conveying motor to adjust the distance between the main shafts, so that the double-station positioning and two-end fixing are realized, the problem that a single main shaft is easy to shake when clamping long-axis workpieces is solved, and the working efficiency is improved. Machining deviations (such as cylindricity errors and unqualified surface roughness) caused by unstable clamping are reduced, and meanwhile potential safety hazards such as workpiece throwing-out are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machining equipment, specifically, it relates to a double fixed tooling machine tool suitable for long workpieces. Background Technology

[0002] A lathe is a machine tool primarily used to machine rotating workpieces using a cutting tool. It is the most important type of metal cutting machine tool, and is the most numerous and prevalent type in general machine manufacturing plants; it is also known as the "mother machine." Drills, reamers, taps, dies, and knurling tools can also be used on lathes for various machining operations. The function of a lathe is to cut rotating surfaces of various sizes and shapes, as well as helical surfaces.

[0003] Common lathes on the market include conventional lathes and CNC lathes. Conventional lathes require manual reading and tool feeding, which is inefficient and has low machining accuracy. Most CNC lathes currently have only one spindle and tool turret. The workpiece is clamped by the spindle and driven to rotate at high speed. The tool is then mounted on the tool turret. The tool turret is controlled by CNC to move along the Y and X axes, so that the tool can be controlled to feed and cut on the rotating cylinder.

[0004] Patent application CN110076362B discloses a lathe. Paragraph 0023 of the specification discloses that: when turning a workpiece on the lathe, a protective cover is used to prevent the flying of cutting chips that could cause injury to workers. In addition, after the lathe finishes machining a workpiece, the chuck releases its clamping of the material rod. The lifting mechanism controls the raising and lowering of the protective cover, which allows the operating component to drive the material rod to move a certain position before the chuck clamps the material rod again. This eliminates the need for manual movement of the material rod. Furthermore, this operation makes the movement distance of the material rod more stable.

[0005] In practical use, the following defects were found: the lathe has difficulty in achieving rapid dual-station positioning and fixing based on the workpiece length, especially when clamping long shaft-type workpieces, where unstable clamping is prone to occur. This causes the workpiece to wobble during rotation, which in turn affects machining accuracy, and in severe cases, may even pose a safety hazard.

[0006] To address this, a dual-fixed tooling machine tool suitable for longer workpieces is proposed to overcome the aforementioned drawbacks. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a double fixed tooling machine tool suitable for longer workpieces.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0009] A dual-fixed tooling machine tool suitable for long workpieces includes a frame and a worktable fixed on the frame. A first X-axis conveying mechanism and a second X-axis conveying mechanism located on one side of the first X-axis conveying mechanism are provided on the worktable. A spindle mechanism is provided on both the first X-axis conveying mechanism and the worktable. A turret mechanism is provided on the second X-axis conveying mechanism.

[0010] The spindle mechanism includes a mounting base, on which a reducer is mounted, and on which a drive motor and a lathe fixture are mounted.

[0011] Optionally, the first X-axis conveying mechanism includes a first X-axis conveying motor fixed to the worktable, two first X-axis guide rails, a first X-axis slider slidably fitted on the first X-axis guide rails, and a first X-axis slide table disposed between the two first X-axis sliders.

[0012] Optionally, the output end of the first X-axis conveyor motor is provided with a first lead screw, and the bottom of the first X-axis slide is provided with a first threaded hole, and the first lead screw is threaded into the first threaded hole.

[0013] Optionally, the mounting base is provided with a support platform at its bottom, and the two support platforms are respectively fixed to the worktable and the first X-axis slide.

[0014] Optionally, the second X-axis conveying mechanism includes a second X-axis conveying motor fixed to the worktable, two second X-axis guide rails, a second X-axis slider slidably fitted on the second X-axis guide rails, and a second X-axis slide table disposed between the two second X-axis sliders.

[0015] Optionally, the output end of the second X-axis conveyor motor is provided with a second lead screw, and the bottom of the second X-axis slide is provided with a second threaded hole, in which the second lead screw is threadedly engaged.

[0016] Optionally, the turret mechanism includes a positioning frame fixed to the second X-axis slide, the positioning frame being provided with a Y-axis conveying mechanism and a lifting motor located on one side of the Y-axis conveying mechanism, and the lifting motor being provided with a turntable driver.

[0017] Optionally, the positioning frame is provided with a tool turntable, and the tool turntable is provided with multiple milling and turning tools.

[0018] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0019] Both the first X-axis conveying mechanism and the spindle mechanism on the worktable can adjust the spindle spacing by driving the first lead screw through the first X-axis conveying motor, adapting to longer workpieces of different lengths, realizing dual-station positioning and fixation at both ends, reducing the shaking problem that is prone to occur when clamping long shaft workpieces with a single spindle, reducing processing deviations caused by unstable clamping (such as cylindricity error, surface roughness non-compliance), and reducing safety hazards such as workpieces being thrown out.

[0020] The second X-axis conveyor mechanism controls the turret's lateral movement via a second X-axis conveyor motor, cooperating with the Y-axis conveyor mechanism to achieve vertical feed. A lifting motor and a turntable driver then drive the tool turntable to switch between turning and milling tools. This multi-axis coordinated motion enables continuous machining of multiple features on the workpiece, such as outer diameters, end faces, and threads, reducing manual tool changes and positioning, and improving the machining efficiency of complex workpieces.

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0023] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model. Figure 1 ;

[0024] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the second X-axis guide rail structure according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the Y-axis conveying mechanism according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of a tool turntable structure according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the mounting base structure according to an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of a lathe fixture structure according to an embodiment of the present invention.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] Frame 1, Worktable 2, Spindle mechanism 3, Support platform 301, Mounting base 302, Reducer 303, Drive motor 304, Lathe fixture 305, First X-axis conveyor mechanism 4, First X-axis conveyor motor 401, First X-axis guide rail 402, First X-axis slide 403, First X-axis slider 404, Second X-axis conveyor mechanism 5, Second X-axis conveyor motor 501, Second X-axis guide rail 502, Second X-axis slide 503, Second X-axis slider 504, Turret mechanism 6, Y-axis conveyor mechanism 601, Positioning frame 602, Lifting motor 603, Turntable driver 604, Tool turntable 605, Milling cutter 606.

[0032] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings.

[0034] Please see Figure 1-7 As shown, this embodiment provides a dual fixed tooling machine tool suitable for longer workpieces, including a frame 1 and a worktable 2 fixed on the frame 1. The worktable 2 is provided with a first X-axis conveying mechanism 4 and a second X-axis conveying mechanism 5 located on one side of the first X-axis conveying mechanism 4. Both the first X-axis conveying mechanism 4 and the worktable 2 are provided with a spindle mechanism 3, and the second X-axis conveying mechanism 5 is provided with a turret mechanism 6.

[0035] The spindle mechanism 3 includes a mounting base 302, a reducer 303 is mounted on the mounting base 302, and a drive motor 304 and a lathe fixture 305 are mounted on the reducer 303.

[0036] Specifically, the position of one of the spindle mechanisms 3 is adjusted by the first X-axis conveying mechanism 4 to adapt to the length of a longer workpiece. The two spindle mechanisms 3 fix the two ends of the workpiece by the lathe fixture 305 to achieve dual-station positioning and fixing. The drive motor 304 drives the workpiece to rotate at high speed through the reducer 303. At the same time, the milling cutter 606 on the turret mechanism 6 moves along the X-axis and Y-axis and switches tools under the control of the Y-axis conveying mechanism 601, the lifting motor 603 and the turntable driver 604 to perform cutting processing on the rotating workpiece.

[0037] Both the first X-axis conveying mechanism 4 and the main spindle mechanism 3 on the worktable 2 can adjust the main spindle spacing by driving the first lead screw through the first X-axis conveying motor 401, adapting to longer workpieces of different lengths, realizing dual-station positioning and fixation at both ends, reducing the shaking problem that is prone to occur when clamping long shaft workpieces with a single main spindle, reducing processing deviations caused by unstable clamping (such as cylindricity error, surface roughness non-compliance), and reducing safety hazards such as workpieces being thrown out.

[0038] The second X-axis conveying mechanism 5 controls the turret to move laterally via the second X-axis conveying motor 501, and works in conjunction with the Y-axis conveying mechanism 601 to achieve vertical feed. The lifting motor 603 and the turntable driver 604 drive the tool turntable 605 to switch the milling cutter 606. The multi-axis coordinated motion can realize continuous machining of multiple features of the workpiece, such as the outer circle, end face, and threads, reducing the number of manual tool changes and positioning, and improving the machining efficiency of complex workpieces.

[0039] like Figure 1-7 As shown, the first X-axis conveying mechanism 4 in this embodiment includes a first X-axis conveying motor 401 fixed on the worktable 2 and two first X-axis guide rails 402. First X-axis sliders 404 are slidably fitted on the first X-axis guide rails 402. A first X-axis slide 403 is provided between the two first X-axis sliders 404. A first lead screw is provided at the output end of the first X-axis conveying motor 401. A first threaded hole is opened at the bottom of the first X-axis slide 403, and the first lead screw is threaded into the first threaded hole. A support platform 301 is provided at the bottom of the mounting base 302. The two support platforms 301 are respectively fixed on the worktable 2 and the first X-axis slide 403. The second X-axis conveying mechanism 5 includes a second X-axis conveying motor 501 fixed on the worktable 2 and two first X-axis guide rails 402. The second X-axis guide rail 502 has a second X-axis slider 504 that slides on it. A second X-axis slide table 503 is provided between the two second X-axis sliders 504. A second lead screw is provided at the output end of the second X-axis conveyor motor 501. A second threaded hole is provided at the bottom of the second X-axis slide table 503. The second lead screw is threaded into the second threaded hole. The turret mechanism 6 includes a positioning frame 602 fixed on the second X-axis slide table 503. A Y-axis conveyor mechanism 601 and a lifting motor 603 located on one side of the Y-axis conveyor mechanism 601 are provided on the positioning frame 602. A turntable driver 604 is provided on the lifting motor 603. A tool turntable 605 is provided on the positioning frame 602. A plurality of milling cutters 606 are provided on the tool turntable 605.

[0040] The first X-axis conveyor motor 401 drives the first lead screw to rotate. Through the threaded engagement of the first lead screw with the first threaded hole at the bottom of the first X-axis slide 403, the rotational motion of the first X-axis conveyor motor 401 is converted into the linear motion of the first X-axis slide 403 along the first X-axis guide rail 402, thereby driving the spindle mechanism 3 fixed thereon to move and realize the adjustment of the clamping position of one end of the long workpiece. Similarly, the second X-axis conveyor motor 501 drives the second lead screw to rotate. Through the threaded engagement of the second lead screw with the second threaded hole at the bottom of the second X-axis slide 503, the second X-axis slide 503 moves along the second X-axis guide rail 502, thereby driving the turret mechanism 6 to move laterally. The turret mechanism 6 realizes vertical feed through the Y-axis conveyor mechanism 601. The lifting motor 603 drives the turntable driver 604 to drive the tool turntable 605 to rotate, and different milling cutters 606 are switched to perform cutting processing on the rotating workpiece. By setting spindle mechanisms 3 on the worktable 2 and the first X-axis conveying mechanism 4 respectively, the two spindles work together to fix the two ends of a long workpiece, reducing the defects of unstable clamping and easy shaking when rotating long shaft workpieces.

[0041] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A double-fixed tooling machine tool suitable for long workpieces, comprising: A frame (1) and a worktable (2) fixed on the frame (1), characterized in that a first X-axis conveying mechanism (4) and a second X-axis conveying mechanism (5) located on one side of the first X-axis conveying mechanism (4) are provided on the worktable (2), a spindle mechanism (3) is provided on both the first X-axis conveying mechanism (4) and the worktable (2), and a turret mechanism (6) is provided on the second X-axis conveying mechanism (5); The spindle mechanism (3) includes a mounting base (302), a reducer (303) is provided on the mounting base (302), and a drive motor (304) and a lathe fixture (305) are provided on the reducer (303).

2. The double-fixed tooling machine tool suitable for long workpieces according to claim 1, characterized in that, The first X-axis conveying mechanism (4) includes a first X-axis conveying motor (401) fixed on the worktable (2) and two first X-axis guide rails (402). A first X-axis slider (404) is slidably fitted on the first X-axis guide rail (402), and a first X-axis slide table (403) is provided between the two first X-axis sliders (404).

3. A double-fixed tooling machine tool suitable for long workpieces according to claim 2, characterized in that, The output end of the first X-axis conveyor motor (401) is provided with a first lead screw, and the bottom of the first X-axis slide (403) is provided with a first threaded hole, and the first lead screw is threaded into the first threaded hole.

4. A double-fixed tooling machine tool suitable for longer workpieces according to claim 2, characterized in that, The mounting base (302) is provided with a support platform (301) at its bottom, and the two support platforms (301) are respectively fixed on the worktable (2) and the first X-axis slide (403).

5. A double-fixed tooling machine tool suitable for long workpieces according to claim 1, characterized in that, The second X-axis conveying mechanism (5) includes a second X-axis conveying motor (501) fixed on the worktable (2) and two second X-axis guide rails (502). A second X-axis slider (504) is slidably fitted on the second X-axis guide rail (502), and a second X-axis slide table (503) is provided between the two second X-axis sliders (504).

6. A double-fixed tooling machine tool suitable for longer workpieces according to claim 5, characterized in that, The output end of the second X-axis conveyor motor (501) is provided with a second lead screw, and the bottom of the second X-axis slide (503) is provided with a second threaded hole, and the second lead screw is threaded into the second threaded hole.

7. A double-fixed tooling machine tool suitable for long workpieces according to claim 5, characterized in that, The turret mechanism (6) includes a positioning frame (602) fixed on the second X-axis slide (503). The positioning frame (602) is provided with a Y-axis conveying mechanism (601) and a lifting motor (603) located on one side of the Y-axis conveying mechanism (601). The lifting motor (603) is provided with a turntable driver (604).

8. A double-fixed tooling machine tool suitable for long workpieces according to claim 7, characterized in that, The positioning frame (602) is provided with a tool turntable (605), and the tool turntable (605) is provided with a plurality of milling cutters (606).

Images