Three-axis numerical control milling machine

Abstract

The utility model relates to the technical field of three-axis numerical control milling machines, and discloses a three-axis numerical control milling machine which comprises a workbench, a milling chamber is arranged above the workbench, and observation windows are arranged on the two sides of the milling chamber. According to the three-axis numerical control milling machine, a threaded pipe is driven to move when a lead screw rotates, a fixing ring is promoted to drive a rotating shaft and a cleaning roller to move, and then the inner wall and the outer wall of an observation window are automatically cleaned; the rotating shaft and the cleaning roller can rotate in the moving process, the cleaning effect of the inner wall and the outer wall of the observation window is optimized, the observation window is kept clean, square and round workpieces can be machined by arranging a positioning base, a plane end, an arc face end, a plane positioning plate and an arc face positioning plate, the practicability of the milling machine is improved, and the machining efficiency is improved. The problems that the inner wall of the observation window is inconvenient to clean, the cleaning burden of workers is increased, and an existing milling machine is inconvenient to position and machine a round workpiece are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of three-axis numerical control milling machines, in particular to a three-axis numerical control milling machine. BACKGROUND

[0002] The three-axis numerical control milling machine is a commonly used numerical control machining equipment with three linear moving axes, usually including X, Y and Z axes, the positioning and machining in three-dimensional space can be realized by controlling the movement of the three axes, various complex shapes and structures can be machined, and a movable milling chamber is usually arranged on the three-axis numerical control milling machine, a milling cutter is arranged in the milling chamber, and the milling operation is completed by the milling cutter.

[0003] The side surface of the milling chamber is usually provided with an observation window, so that the milling condition in the milling chamber can be observed, since the inner wall of the observation window is in the interior of the milling chamber, the cleaning is relatively inconvenient, the cleaning burden of workers is increased, and the end surface of the existing milling machine positioning structure is generally a plane, so that the positioning machining of a circular workpiece is inconvenient. CONTENT OF THE INVENTION

[0004] In view of the defects in the prior art, the application provides a three-axis numerical control milling machine, which has the advantages of being capable of automatically cleaning the inner and outer walls of the milling chamber observation window, facilitating the cleaning operation of the observation window, reducing the cleaning burden of workers, keeping the observation window clean, avoiding the influence of the dirty observation window on the field of vision, being convenient for machining square and circular workpieces, improving the practicability of the milling machine, and solving the problems that the inner wall of the milling chamber observation window is in the interior of the milling chamber, the cleaning is relatively inconvenient, the cleaning burden of workers is increased, and the existing milling machine is inconvenient for positioning machining of a circular workpiece.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a three-axis numerical control milling machine, comprising a workbench, a milling chamber is arranged above the workbench, observation windows are arranged on the two sides of the milling chamber, two motors are fixedly connected to the top end of the milling chamber, a screw rod is rotatably connected to one end of each motor, the outer circumferential surface of the screw rod is rotatably connected to the top end of the milling chamber, a threaded tube is threadedly connected to the outer circumferential surface of the screw rod, two fixed rings are fixedly connected to the outer circumferential surface of the threaded tube, a rotating shaft is rotatably connected to the inside of each fixed ring, a cleaning roller is fixedly sleeved to the outer circumferential surface of the rotating shaft, a gear is fixedly sleeved to the outer circumferential surface of each rotating shaft, and two racks are fixedly connected to the upper surface of the milling chamber.

[0006] The upper surface of the workbench is fixedly connected with equidistantly arranged bottom plates, the upper surface of each bottom plate is fixedly connected with a positioning seat, one end of the positioning seat is provided with a plane end, the other end of the positioning seat is provided with an arc end, one end of the upper surface of the bottom plate close to the plane end is fixedly connected with a first air cylinder, the output end of the first air cylinder is fixedly connected with a plane positioning plate, one end of the upper surface of the bottom plate close to the arc end is fixedly connected with a second air cylinder, and the output end of the second air cylinder is fixedly connected with an arc positioning plate.

[0007] Through the above scheme, since the inner wall of the milling chamber observation window is inside the milling chamber, it is inconvenient to clean, increasing the cleaning burden of workers, and the existing milling machine is not convenient for positioning machining of circular workpieces, the threaded tube is moved by the rotation of the lead screw, the fixed ring drives the rotating shaft and the cleaning roller to move, and then the inner and outer walls of the observation window are automatically cleaned, the gear is arranged at the top end of the rotating shaft, and the rack is arranged at the top end of the milling chamber, so that the rotating shaft and the cleaning roller can rotate during movement, optimizing the cleaning effect of the inner and outer walls of the observation window, facilitating the cleaning operation of the observation window, reducing the cleaning burden of workers, keeping the observation window clean, avoiding the influence of the dirty observation window on the field of view, and improving the practicability of the milling machine.

[0008] Further, the outer circumferential surface of each rotating shaft is fixedly sleeved with a limiting ring, and the outer circumferential surface of the limiting ring is rotatably connected with the inner portion of the fixed ring.

[0009] Through the above scheme, the rotating shaft is limited to avoid longitudinal sliding and falling off from the inner portion of the fixed ring, and the stability of the movement of the rotating shaft and the cleaning roller is improved.

[0010] Further, the outer circumferential surface of the threaded tube is fixedly connected with a sleeve ring, the top end of the milling chamber is fixedly connected with two cross bars, and the inner wall of the sleeve ring is slidably sleeved with the outer circumferential surface of the cross bar.

[0011] Through the above scheme, the threaded tube is limited to avoid rotating with the lead screw, so that the threaded tube always moves horizontally, and then the cleaning roller always moves horizontally to complete the cleaning operation of the observation window.

[0012] Further, the front and back surfaces of the milling chamber are fixedly connected with equidistantly arranged splash-proof curtains.

[0013] Through the above scheme, the splash-proof curtain can play a role in preventing splashing, avoiding the splashing of the milling metal chips to the outside during the milling process, and improving the safety of the milling operation.

[0014] Further, the cleaning rollers are symmetrically arranged on both sides of the observation window, and outer circumferential surfaces of the cleaning rollers are in contact with inner walls and outer walls of the observation window respectively.

[0015] Through the above scheme, the cleaning rollers symmetrically arranged on both sides of the observation window can clean the inner and outer walls of the observation window simultaneously, thereby reducing the cleaning burden of workers and maintaining the cleanliness of the observation window.

[0016] Further, the planar end and the planar positioning plate are symmetrically arranged, and the planar end and the planar positioning plate are provided with anti-skid protrusions arranged at equal intervals on the side close to each other.

[0017] Through the above scheme, the anti-skid protrusions on the planar end and the planar positioning plate can increase the friction between the square workpiece and the anti-skid protrusions, thereby improving the stability of the square workpiece during machining.

[0018] Further, the arc surface end and the arc surface positioning plate are symmetrically arranged, and the arc surfaces of the arc surface end and the arc surface positioning plate are provided with anti-skid protrusions arranged at equal intervals.

[0019] Through the above scheme, the anti-skid protrusions on the arc surface end and the arc surface positioning plate can increase the friction between the circular workpiece and the anti-skid protrusions, thereby improving the stability of the circular workpiece during machining.

[0020] Further, two through holes are formed in the top end of the milling chamber, and the through holes are in the shape of a strip.

[0021] Through the above scheme, the strip-shaped through holes can meet the demand for transverse movement of the rotating shaft, so that the rotating shaft can drive the cleaning roller to move transversely, thereby completing the cleaning work of the inner and outer walls of the observation window.

[0022] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0023] The three-axis numerical control milling machine drives the threaded pipe to move when the screw rod rotates, drives the rotating shaft and the cleaning roller to move through the fixed ring, and then automatically cleans the inner and outer walls of the observation window. By arranging the gear on the top end of the rotating shaft and the rack on the top end of the milling chamber, the rotating shaft and the cleaning roller can rotate during movement, thereby optimizing the cleaning effect of the inner and outer walls of the observation window, facilitating the cleaning work of the observation window, reducing the cleaning burden of workers, maintaining the cleanliness of the observation window, avoiding the influence of the dirty observation window on the field of view, and positioning the square and circular workpieces for machining through the arrangement of the positioning seat, the planar end, the arc surface end, the planar positioning plate and the arc surface positioning plate. The practicability of the milling machine is improved, and the problems of inconvenient cleaning of the inner wall of the observation window, increased cleaning burden of workers, and inconvenient positioning and machining of the circular workpiece by the existing milling machine are solved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1It is the whole three-dimensional structural drawing of the application;

[0025] Figure 2 It is the milling chamber structural drawing of the application;

[0026] Figure 3 It is the partial cross-sectional side structural drawing of the application;

[0027] Figure 4 It is the positioning seat structural drawing of the application.

[0028] In the figure:

[0029] 1, workbench; 2, milling chamber; 3, observation window; 4, motor; 5, screw rod; 6, threaded tube; 7, fixed ring; 8, rotating shaft; 9, cleaning roller; 10, gear; 11, rack; 12, limiting ring; 13, sleeve ring; 14, crossbar; 15, splash-proof curtain; 16, bottom plate; 17, positioning seat; 18, flat end; 19, arc surface end; 20, first cylinder; 21, flat positioning plate; 22, second cylinder; 23, arc positioning plate; 24, through hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , the three-axis numerical control milling machine in the embodiment comprises a workbench 1, a milling chamber 2 is arranged above the workbench 1, observation windows 3 are arranged on both sides of the milling chamber 2, two motors 4 are fixedly connected to the top end of the milling chamber 2, a screw rod 5 is rotatably connected to one end of each motor 4, the outer circumferential surface of the screw rod 5 is rotatably connected to the top end of the milling chamber 2, a threaded tube 6 is threadedly connected to the outer circumferential surface of the screw rod 5, two fixed rings 7 are fixedly connected to the outer circumferential surface of the threaded tube 6, a rotating shaft 8 is rotatably connected to the inside of each fixed ring 7, a cleaning roller 9 is fixedly sleeved to the outer circumferential surface of the rotating shaft 8, a gear 10 is fixedly sleeved to the outer circumferential surface of each rotating shaft 8, two racks 11 are fixedly connected to the upper surface of the milling chamber 2, and the gears 10 are respectively engaged with the racks 11.

[0032] Please refer to Figure 1 and Figure 4The upper surface of the workbench 1 is fixedly connected with equidistantly arranged bottom plates 16, the upper surface of each bottom plate 16 is fixedly connected with a positioning seat 17, one end of the positioning seat 17 is provided with a plane end 18, the other end of the positioning seat 17 is provided with an arc end 19, one end of the upper surface of the bottom plate 16 close to the plane end 18 is fixedly connected with a first air cylinder 20, the output end of the first air cylinder 20 is fixedly connected with a plane positioning plate 21, one end of the upper surface of the bottom plate 16 close to the arc end 19 is fixedly connected with a second air cylinder 22, the output end of the second air cylinder 22 is fixedly connected with an arc positioning plate 23.

[0033] Please refer to Figure 3 The outer circumferential surface of each rotating shaft 8 is fixedly sleeved with a limiting ring 12, the outer circumferential surface of the limiting ring 12 is rotatably connected with the inner part of the fixed ring 7, the rotating shaft 8 is limited, the rotating shaft 8 is prevented from longitudinally sliding and falling off from the inner part of the fixed ring 7, and the stability of the movement of the rotating shaft 8 and the cleaning roller 9 is improved.

[0034] Please refer to Figure 1 , Figure 2 and Figure 3 The outer circumferential surface of the threaded pipe 6 is fixedly connected with a sleeve ring 13, the top end of the milling chamber 2 is fixedly connected with two cross rods 14, the inner wall of the sleeve ring 13 is slidably sleeved with the outer circumferential surface of the cross rod 14, the threaded pipe 6 is limited, the threaded pipe 6 is prevented from rotating with the screw rod 5, the threaded pipe 6 is always moved horizontally, the cleaning roller 9 is always moved horizontally, and the cleaning work of the observation window 3 is completed.

[0035] Please refer to Figure 1 and Figure 2 The front and back surfaces of the milling chamber 2 are fixedly connected with equidistantly arranged splash-proof curtains 15, the splash-proof curtains 15 can play a splash-proof role, the metal scraps cut off in the milling process are prevented from splashing to the outside, and the safety of the milling work is improved.

[0036] Please refer to Figure 1 , Figure 2 and Figure 3 The cleaning rollers 9 are symmetrically arranged on the two sides of the observation window 3, the outer circumferential surfaces of the cleaning rollers 9 are respectively in contact with the inner wall and the outer wall of the observation window 3, the cleaning rollers 9 symmetrically arranged on the two sides of the observation window 3 can simultaneously clean the inner and outer walls of the observation window 3, the cleaning burden of the workers is reduced, and the cleanliness of the observation window 3 is maintained.

[0037] Please refer to Figure 1 and Figure 4 The plane end 18 and the plane positioning plate 21 are symmetrically arranged, the side close to the plane end 18 and the plane positioning plate 21 is provided with equidistantly arranged anti-skid protrusions, the anti-skid protrusions on the plane end 18 and the plane positioning plate 21 can increase the friction between the plane end 18, the plane positioning plate 21 and the square workpiece, and the stability of the square workpiece in the machining process is improved.

[0038] Please refer to Figure 1 and Figure 4 The arc surface end 19 and the arc surface positioning plate 23 are symmetrically arranged, and the arc surfaces of the arc surface end 19 and the arc surface positioning plate 23 are provided with anti-skid protrusions arranged at equal distances. The anti-skid protrusions on the arc surface end 19 and the arc surface positioning plate 23 can increase the friction between the arc surface end 19 and the arc surface positioning plate 23 and the circular workpiece, thereby improving the stability of the circular workpiece during processing.

[0039] Please refer to Figure 1 , Figure 2 and Figure 3 Two through holes 24 are formed in the top end of the milling chamber 2. The through holes 24 are in the shape of a long strip. The long strip-shaped through holes 24 can meet the demand for the transverse movement of the rotating shaft 8, so that the rotating shaft 8 can drive the cleaning roller 9 to move transversely, thereby completing the cleaning work of the inner and outer walls of the observation window 3.

[0040] In the embodiment, the three-axis numerical control milling machine can automatically clean the inner and outer walls of the observation window 3 by moving the threaded tube 6 when the screw rod 5 rotates, driving the fixed ring 7 to move the rotating shaft 8 and the cleaning roller 9. The rotating shaft 8 and the cleaning roller 9 can rotate during movement by setting the gear 10 at the top end of the rotating shaft 8 and the rack 11 at the top end of the milling chamber 2, thereby optimizing the cleaning effect of the inner and outer walls of the observation window 3, facilitating the cleaning work of the observation window 3, reducing the cleaning burden of workers, keeping the observation window 3 clean, avoiding the influence of the dirty observation window 3 on the field of view, and enabling the processing of square and circular workpieces by setting the positioning seat 17, the flat end 18, the arc surface end 19, the flat positioning plate 21, and the arc surface positioning plate 23, thereby improving the practicability of the milling machine and solving the problems of the inner wall of the observation window 3 being inside the milling chamber 2, the inconvenience of cleaning, the increased cleaning burden of workers, and the inconvenience of positioning and processing circular workpieces by existing milling machines.

[0041] It should be noted that the splash-proof curtain 15 is made of soft plastic material.

[0042] The working principle of the above embodiment is as follows:

[0043] The motor 4 can be started as power to drive the screw rod 5 to move the threaded tube 6, the threaded tube 6 drives the rotating shaft 8 and the cleaning roller 9 to move through the fixed ring 7, when the rotating shaft 8 moves, the gear 10 and the rack 11 are engaged to promote the rotating shaft 8 and the cleaning roller 9 to rotate, thereby the rotating shaft 8 and the cleaning roller 9 complete the rotating cleaning work on the inner and outer walls of the observation window 3 in the moving process, reducing the cleaning burden of workers, keeping the observation window 3 clean, when the square workpiece needs to be positioned and milled, the square workpiece can be placed between the flat end 18 and the flat positioning plate 21, the first air cylinder 20 is started to drive the flat positioning plate 21 to move forward, and the square workpiece is clamped and positioned, when the circular workpiece needs to be positioned and milled, the circular workpiece can be placed between the arc end 19 and the arc positioning plate 23, the second air cylinder 22 is started to drive the arc positioning plate 23 to move forward, and the circular workpiece is clamped and positioned.

[0044] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0045] Although the embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A three-axis CNC milling machine, comprising a worktable (1), characterized in that: A milling chamber (2) is provided above the workbench (1). Observation windows (3) are provided on both sides of the milling chamber (2). Two motors (4) are fixedly connected to the top of the milling chamber (2). A lead screw (5) is rotatably connected to one end of each motor (4). The outer circumferential surface of the lead screw (5) is rotatably connected to the top of the milling chamber (2). A threaded tube (6) is threadedly connected to the outer circumferential surface of the lead screw (5). Two fixing rings (7) are fixedly connected to the outer circumferential surface of the threaded tube (6). A rotating shaft (8) is rotatably connected inside each fixing ring (7). A cleaning roller (9) is fixedly sleeved on the outer circumferential surface of the rotating shaft (8). A gear (10) is fixedly sleeved on the outer circumferential surface of each rotating shaft (8). Two racks (11) are fixedly connected to the upper surface of the milling chamber (2). The gears (10) mesh with the racks (11) respectively. The upper surface of the workbench (1) is fixedly connected with equidistantly arranged base plates (16). Each base plate (16) is fixedly connected with a positioning seat (17). One end of the positioning seat (17) is provided with a flat end (18), and the other end of the positioning seat (17) is provided with an arc end (19). A first cylinder (20) is fixedly connected to the end of the upper surface of the base plate (16) near the flat end (18). A flat positioning plate (21) is fixedly connected to the output end of the first cylinder (20). A second cylinder (22) is fixedly connected to the end of the upper surface of the base plate (16) near the arc end (19). An arc positioning plate (23) is fixedly connected to the output end of the second cylinder (22).

2. A three-axis CNC milling machine according to claim 1, characterized in that: Each of the rotating shafts (8) has a limiting ring (12) fixedly sleeved on its outer circumference, and the outer circumference of the limiting ring (12) is rotatably connected to the inside of the fixed ring (7).

3. A three-axis CNC milling machine according to claim 1, characterized in that: A collar (13) is fixedly connected to the outer circumference of the threaded tube (6), and two crossbars (14) are fixedly connected to the top of the milling chamber (2). The inner wall of the collar (13) is slidably sleeved with the outer circumference of the crossbars (14).

4. A three-axis CNC milling machine according to claim 1, characterized in that: The milling chamber (2) is fixedly connected to splash guards (15) arranged at equal intervals on both the front and back.

5. A three-axis CNC milling machine according to claim 1, characterized in that: The cleaning rollers (9) are symmetrically arranged on both sides of the observation window (3), and the outer circumferential surfaces of the cleaning rollers (9) are in contact with the inner and outer walls of the observation window (3), respectively.

6. A three-axis CNC milling machine according to claim 1, characterized in that: The planar end (18) and the planar positioning plate (21) are symmetrically arranged, and the planar end (18) and the planar positioning plate (21) are provided with anti-slip protrusions arranged at equal intervals on the side that are close to each other.

7. A three-axis CNC milling machine according to claim 1, characterized in that: The arc end (19) and the arc positioning plate (23) are symmetrically arranged, and the arc surfaces of the arc end (19) and the arc positioning plate (23) are provided with anti-slip protrusions arranged at equal intervals.

8. A three-axis CNC milling machine according to claim 1, characterized in that: The top of the milling chamber (2) has two through holes (24), which are elongated.

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