Numerical control cutting machine with screw rod transmission

Abstract

The utility model discloses a numerical control cutting-off machine structure of screw rod drive, including frame, movable gantry and head device, movable gantry includes two support seat and crossbeam, the frame includes a plurality of bottom plate and riser of integrated welding, the upper end surface of riser is provided with X axle guide rail, is provided with the X axle sliding module and X axle drive arrangement of sliding connection in X axle guide rail on the bottom plate, X axle drive arrangement drives X axle sliding module and goes back and forth along X axle guide rail, two support seat install fixed position on X axle sliding module, is provided with Y axle transmission mechanism on the crossbeam, Y axle transmission mechanism includes Y axle guide rail, Y axle screw rod, Y axle sliding board, driven synchronous pulley and Y axle drive arrangement, and the head device sets up on Y axle sliding board and can be active with Y axle sliding board, like this, changed the layout mode of traditional guide rail in the side of machine table, makes the lateral space of frame to be optimized.

Description

Technical Field

[0001] This utility model relates to the field of CNC cutting machines, and in particular to a screw-driven CNC cutting machine structure. Background Technology

[0002] A panel saw is a mechanical device used to cut and trim materials such as boards and profiles. It is widely used in furniture manufacturing, building materials processing, advertising production, packaging and printing, and many other industries. Through precise cutting control, it processes raw materials into the required parts according to preset dimensions and shapes, greatly improving the efficiency and accuracy of material processing.

[0003] A prior art engraving machine for sheet metal with pressure rollers, authorized by publication number CN 215096696U, includes a machine base. A vacuum adsorption platform for placing sheet metal is fixedly connected to the upper surface of the machine base. A left and right pressure roller support are symmetrically arranged on both sides of the machine base's length. A first and second cylinder are fixedly installed on the left pressure roller support, and a third and fourth cylinder, symmetrical to the first and second cylinders, are fixedly installed on the right pressure roller support. Pressure roller A is positioned between the first and third cylinders, and pressure roller B is positioned between the second and fourth cylinders. The symmetrically arranged first and third cylinders drive pressure roller A to rise or fall; the symmetrically arranged second and fourth cylinders drive pressure roller B to rise or fall, thereby fixing the sheet metal. However, this engraving machine for sheet metal with pressure rollers has the following drawbacks: for example:

[0004] The machine platform is equipped with a moving mechanism along its length. The moving mechanism includes linear slide rails symmetrically arranged on both sides of the machine platform and sliders that cooperate with the slide rails. A left column is fixedly connected to the upper end of the left slider, and one side of the left column is fixedly connected to the left support of the pressure roller. A right column is fixedly connected to the upper end of the right slider, and one side of the right column is fixedly connected to the right support of the pressure roller. Because the linear slide rails are arranged on both sides of the machine platform, the overall width of the machine platform is large, and the equipment occupies more space. This causes inconvenience to production line planning and equipment layout, especially in scenarios where factory space is limited.

[0005] Meanwhile, existing three-axis transmission systems mostly use gear racks, linear motors, and other transmission methods, which can meet certain accuracy requirements, but have the problem of high manufacturing costs.

[0006] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0007] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a screw-driven CNC cutting machine structure. By setting the X-axis guide rail on the upper end face of the vertical plate, the traditional layout of the guide rail on the side of the machine table is changed, thus optimizing the lateral space of the frame. The vertical plate and the base plate are integrally welded to form a rigid frame, and the X-axis sliding module is directly installed on the guide rail at the top of the vertical plate. This avoids the need to reserve operating space on both sides of the guide rail in the traditional structure, reduces the lateral footprint of the equipment, improves the utilization rate of factory space, and the screw drive method can reduce costs.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A screw-driven CNC cutting machine structure includes a frame, a movable gantry frame, and a machine head device. The movable gantry frame includes two support seats and a crossbeam between the two support seats.

[0010] The frame includes several integrally welded base plates and vertical plates. The upper surface of the vertical plate is provided with an X-axis guide rail, which extends along the X-axis direction. The base plate is provided with an X-axis sliding module and an X-axis driving device that are slidably connected to the X-axis guide rail. The X-axis driving device drives the X-axis sliding module to move back and forth along the X-axis guide rail.

[0011] The two support seats are mounted on the X-axis sliding module. A Y-axis transmission mechanism is provided on the crossbeam. The Y-axis transmission mechanism includes a Y-axis guide rail, a Y-axis lead screw, a Y-axis sliding plate, a driven synchronous pulley, and a Y-axis drive device. The Y-axis sliding plate is slidably connected to the Y-axis guide rail and the Y-axis lead screw. An active synchronous pulley is mounted on the Y-axis drive device. The active synchronous pulley is connected to the driven synchronous pulley via a synchronous belt. The driven synchronous pulley is connected to the Y-axis lead screw via a bearing. The Y-axis drive device drives the Y-axis lead screw to rotate.

[0012] The head assembly is mounted on the Y-axis sliding plate and can move with the Y-axis sliding plate; the head assembly includes at least a Z-axis drive device, a Z-axis lead screw, a Z-axis lead screw nut, a Z-axis sliding plate, and a main shaft mounted on the Y-axis sliding plate. The Z-axis lead screw nut is sleeved on the Z-axis lead screw, the Z-axis sliding plate is connected to the Z-axis lead screw nut, the main shaft is mounted on the Z-axis sliding plate, and the Z-axis drive device drives the Z-axis lead screw to rotate.

[0013] As a preferred embodiment, the head assembly further includes a coupling mounted on a Y-axis sliding plate; two Z-axis guide rails are provided on the front side of the Y-axis sliding plate; the output end of the Z-axis drive device is connected to the coupling; the coupling is connected to the Z-axis lead screw; and the Z-axis sliding plate is slidably connected to the Z-axis guide rails via a Z-axis sliding block.

[0014] As a preferred embodiment, the head assembly is also fitted with a dust cover.

[0015] As a preferred embodiment, the crossbeam is integrally welded to the two support bases to ensure the stability of the connection between the crossbeam and the support bases.

[0016] As a preferred embodiment, the Y-axis sliding plate is connected to the Y-axis lead screw via a Y-axis lead screw nut.

[0017] As a preferred embodiment, both the Y-axis drive device and the Z-axis drive device are servo motors.

[0018] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly changes the traditional layout of the guide rail on the side of the machine by setting the X-axis guide rail on the upper end of the vertical plate, thereby optimizing the lateral space of the frame. The vertical plate and the bottom plate are integrally welded to form a rigid frame, and the X-axis sliding module is directly installed on the guide rail at the top of the vertical plate, avoiding the need to reserve operating space on both sides of the guide rail in the traditional structure. The lateral footprint of the equipment is reduced, and the utilization rate of factory space is improved.

[0019] Secondly, the Y-axis and Z-axis transmissions adopt a transmission structure combining a lead screw and a synchronous pulley: the Y-axis drive unit drives the lead screw to rotate through the active synchronous pulley, synchronous belt, and driven synchronous pulley. Compared with traditional gear rack or linear motor transmission, the cost of the lead screw transmission components is reduced, and the structure is simple.

[0020] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0022] Figure 2 This is a structural diagram of the frame according to an embodiment of the present invention;

[0023] Figure 3 This is a structural diagram of a movable gantry frame according to an embodiment of this utility model;

[0024] Figure 4 This is a top view of the movable gantry frame according to an embodiment of this utility model;

[0025] Figure 5 This is a structural diagram of the head unit according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached diagram:

[0027] 10. Frame 11. Base plate

[0028] 12. Vertical plate 13. X-axis guide rail

[0029] 14. X-axis sliding module

[0030] 20. Movable gantry frame 21. Support base

[0031] 22. Crossbeam 23. Y-axis transmission mechanism

[0032] 231. Y-axis guide rail; 232. Y-axis lead screw

[0033] 233. Y-axis sliding plate; 234. Driven synchronous pulley

[0034] 235. Y-axis drive unit; 236. Synchronous belt

[0035] 237. Active timing pulley; 238. Y-axis lead screw nut

[0036] 239. Y-axis sliding module

[0037] 24. Dust cover

[0038] 30. Head assembly; 31. Z-axis drive assembly

[0039] 32. Z-axis lead screw 33. Z-axis lead screw nut

[0040] 34. Z-axis sliding plate; 35. Spindle

[0041] 36. Coupling 37. Z-axis guide rail

[0042] 38. Z-axis sliding block. Detailed Implementation

[0043] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0044] In the description of this utility model, it should be noted that the directional terms such as "up", "down", "front", "back", "left", and "right" indicate the orientation and positional relationship based on the accompanying drawings or the orientation or positional relationship shown when wearing and using the device normally. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0045] A screw-driven CNC cutting machine structure includes a frame 10, a movable gantry frame 20, and a head assembly 30.

[0046] The frame 10 includes several integrally welded base plates 11 and vertical plates 12. The upper end surface of the vertical plate 12 is provided with an X-axis guide rail 13. The X-axis guide rail 13 extends along the X-axis direction. The base plate 11 is provided with an X-axis sliding module 14 and an X-axis driving device that are slidably connected to the X-axis guide rail 13. The X-axis driving device drives the X-axis sliding module 14 to move back and forth along the X-axis guide rail 13.

[0047] The two support seats 21 are installed and positioned on the X-axis sliding module 14. The movable gantry frame 20 includes two support seats 21 and a crossbeam 22 between the two support seats 21. Preferably, the crossbeam 22 is integrally welded to the two support seats 21.

[0048] A Y-axis transmission mechanism 23 is provided on the crossbeam 22. The Y-axis transmission mechanism 23 includes a Y-axis guide rail 231, a Y-axis lead screw 232, a Y-axis sliding plate 233, a driven synchronous pulley 234, and a Y-axis drive device 235. The Y-axis sliding plate 233 is slidably connected to the Y-axis guide rail 231 and the Y-axis lead screw 232. A driving synchronous pulley 237 is mounted on the Y-axis drive device 235. The driving synchronous pulley 237 is connected to the driven synchronous pulley 234 via a synchronous belt 236. The driven synchronous pulley 234 is connected to the Y-axis lead screw via a bearing. The Y-axis drive device 235 drives the Y-axis lead screw 232 to rotate. Preferably, the Y-axis sliding plate 233 is driven to the Y-axis lead screw 232 via a Y-axis lead screw nut 238. The Y-axis sliding plate 233 is slidably connected to the Y-axis guide rail 231 via a Y-axis sliding module 239.

[0049] Preferably, both the Y-axis drive device 235 and the Z-axis drive device 31 are servo motors.

[0050] The head unit 30 is mounted on the Y-axis sliding plate 233 and can move with the Y-axis sliding plate 233; preferably, the head unit 30 is also covered with a dust cover 24.

[0051] The head assembly 30 includes at least a Z-axis drive device 31, a Z-axis lead screw 32, a Z-axis lead screw nut 33, a Z-axis sliding plate 34, and a main shaft 35, all mounted on the Y-axis sliding plate 233. The Z-axis lead screw nut 33 is sleeved on the Z-axis lead screw 32, the Z-axis sliding plate 34 is connected to the Z-axis lead screw nut 33, and the main shaft 35 is mounted on the Z-axis sliding plate 34. The Z-axis drive device 31 drives the Z-axis lead screw 32 to rotate.

[0052] Preferably, the head assembly 30 further includes a coupling 36 disposed on the Y-axis sliding plate 233; two Z-axis guide rails 37 are disposed on the front side of the Y-axis sliding plate 233, the output end of the Z-axis drive device 31 is connected to the coupling 36, the coupling 36 is connected to the Z-axis lead screw 32, and the Z-axis sliding plate 34 is slidably connected to the Z-axis guide rails 37 through a Z-axis sliding block 38.

[0053] The key design feature of this utility model is that by setting the X-axis guide rail on the upper surface of the vertical plate, the traditional layout of the guide rail on the side of the machine is changed, which optimizes the lateral space of the frame. The vertical plate and the bottom plate are welded together to form a rigid frame, and the X-axis sliding module is directly installed on the guide rail at the top of the vertical plate. This avoids the need to reserve operating space on both sides of the guide rail in the traditional structure, reduces the lateral footprint of the equipment, and improves the utilization rate of factory space.

[0054] Secondly, the Y-axis and Z-axis transmissions adopt a transmission structure combining a lead screw and a synchronous pulley: the Y-axis drive unit drives the lead screw to rotate through the active synchronous pulley, synchronous belt, and driven synchronous pulley. Compared with traditional gear rack or linear motor transmission, the cost of the lead screw transmission components is reduced, and the structure is simple.

[0055] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A screw-driven CNC cutting machine structure, comprising a frame, a movable gantry frame, and a machine head device, wherein the movable gantry frame includes two support seats and a crossbeam between the two support seats; characterized in that: The frame includes several integrally welded base plates and vertical plates. The upper surface of the vertical plate is provided with an X-axis guide rail, which extends along the X-axis direction. The base plate is provided with an X-axis sliding module and an X-axis driving device that are slidably connected to the X-axis guide rail. The X-axis driving device drives the X-axis sliding module to move back and forth along the X-axis guide rail. The two support seats are mounted on the X-axis sliding module. A Y-axis transmission mechanism is provided on the crossbeam. The Y-axis transmission mechanism includes a Y-axis guide rail, a Y-axis lead screw, a Y-axis sliding plate, a driven synchronous pulley, and a Y-axis drive device. The Y-axis sliding plate is slidably connected to the Y-axis guide rail and the Y-axis lead screw. An active synchronous pulley is mounted on the Y-axis drive device. The active synchronous pulley is connected to the driven synchronous pulley via a synchronous belt. The driven synchronous pulley is connected to the Y-axis lead screw via a bearing. The Y-axis drive device drives the Y-axis lead screw to rotate. The head assembly is mounted on the Y-axis sliding plate and can move with the Y-axis sliding plate; the head assembly includes at least a Z-axis drive device, a Z-axis lead screw, a Z-axis lead screw nut, a Z-axis sliding plate, and a main shaft mounted on the Y-axis sliding plate. The Z-axis lead screw nut is sleeved on the Z-axis lead screw, the Z-axis sliding plate is connected to the Z-axis lead screw nut, the main shaft is mounted on the Z-axis sliding plate, and the Z-axis drive device drives the Z-axis lead screw to rotate.

2. The CNC cutting machine structure with screw drive according to claim 1, characterized in that: The head assembly also includes a coupling mounted on a Y-axis sliding plate; two Z-axis guide rails are mounted on the front side of the Y-axis sliding plate; the output end of the Z-axis drive device is connected to the coupling; the coupling is connected to the Z-axis lead screw; and the Z-axis sliding plate is slidably connected to the Z-axis guide rails via a Z-axis sliding block.

3. The CNC cutting machine structure with screw drive according to claim 2, characterized in that: The head unit is also covered with a dust cover.

4. The CNC cutting machine structure with screw drive according to claim 1, characterized in that: The crossbeam is integrally welded to the two support bases.

5. The CNC cutting machine structure with screw drive according to claim 1, characterized in that: The Y-axis sliding plate is connected to the Y-axis lead screw via a Y-axis lead screw nut.

6. The CNC cutting machine structure with screw drive according to claim 2, characterized in that: Both the Y-axis drive device and the Z-axis drive device are servo motors.

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