Woodworking machine

Abstract

The present invention provides a woodworking machine, belonging to the technical field of machining equipment. It solves the problem that the debris cleaning of the existing woodworking machine is inconvenient during the working state. This woodworking machine includes a frame, a cross beam, an upper processing platform and a lower processing platform. The frame includes two side supports respectively located on both sides. A cleaning channel with an opening is formed between the two side supports. Upper slide rails are longitudinally fixed at the tops of the two side supports. A pair of lower slide rails are longitudinally fixed at the bottom in the cleaning channel. The upper processing platform is located above the cleaning channel, and the two side frames of the upper processing platform are respectively slidably connected to the two upper slide rails. The lower processing platform is located in the cleaning channel, and the two side frames of the lower processing platform are respectively slidably connected to the two lower slide rails. The debris cleaning of this woodworking machine is more convenient during the working state.

Description

Technical Field

[0001] The present invention belongs to the technical field of machining equipment and relates to a woodworking machine. Background Art

[0002] When a woodworking machine is used for engraving, in terms of the processing principle, it is a combined drilling and milling process. Its application range is very wide, including woodworking engraving machines, laser engraving machines, advertising engraving machines, jade engraving machines, stone engraving machines, cylindrical engraving machines, etc. The application range of engraving machines is extremely wide, and it has even replaced manual engraving technology, laying a foundation for the mass and rapid production of products. Currently, in order to improve the processing efficiency, a single engraving machine is usually provided with multiple processing components so as to be able to process multiple workpieces simultaneously. However, after the engraving is completed, the workpieces need to be unloaded and reloaded. Since the engraved workpieces are relatively large in volume, the processes of loading and unloading are time-consuming, thus affecting the working efficiency. Therefore, a double-platform material replacement method has emerged. For example, the offset double-conveying device disclosed in the patent document (application number: 201820985666.0) includes a bottom plate, a first conveying platform and a second conveying platform. The first conveying platform and the second conveying platform are both slidably arranged above the bottom plate; the transverse width of the second conveying platform is smaller than that of the first conveying platform and is arranged below the first conveying platform to form an offset structure. In the initial state, the first conveying platform is located at one end of the bottom plate, and the second conveying platform is located at the other end of the bottom plate; a platform driving device is provided on the bottom plate, and the platform driving device is mechanically connected to the first conveying platform and the second conveying platform respectively. During the working process of one conveying platform, the other conveying platform is located outside for loading and unloading, thereby improving the processing efficiency. However, this double-conveying device is used for the plasma surface treatment of shoe materials, and the overall environment is relatively clean. Different from this, a large amount of debris will be generated during the working process of the engraving machine, and these debris will fall onto components such as guide rails and screws, affecting the running stability. Therefore, it is necessary to clean regularly. However, during the continuous working process of the above double-conveying platform, the guide rails inside it are always covered by the conveying platforms, making it inconvenient to clean.

[0003] Regarding the problem of inconvenient cleaning, the patent document (application number: 201710612784.7) discloses a carving machining center with a chip removal device, including a machine tool. A workbench is arranged on the machine tool, a chip removal device is arranged below the workbench, and a gantry is arranged on the machine tool across both edges of the workbench. The chip removal device includes an open cavity and a negative pressure device. A dust suction port is arranged on the wall of the open cavity, and the dust suction port is connected with a dust suction channel. The negative pressure device includes a positive and negative pressure cylinder and a jet pump. The dust suction port is connected with the jet pump through the dust suction channel. One end of the jet pump is provided with an air inlet, and the other end is provided with a discharge port. An exhaust pipe is connected to the air inlet, and the exhaust pipe is connected with the positive and negative pressure cylinder. The open cavity is located below the workbench. Negative pressure is generated by the positive and negative pressure cylinder, and waste chips are sucked from the open cavity into the jet pump. Then, positive pressure is generated by the positive and negative pressure cylinder to discharge the waste chips in the jet pump, so as to solve the problem that waste chips are not easy to clean. However, obviously, this structure makes the overall structure of the engraving machine relatively complex and the equipment cost relatively high. Summary of the Invention

[0004] The purpose of the present invention is to provide a woodworking machine to solve the problem of inconvenient cleaning of chips in the existing woodworking machine during the working state in view of the above problems existing in the prior art.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A woodworking machine includes a frame, a cross beam, an upper processing platform, and a lower processing platform. The cross beam is horizontally arranged above the frame, and a processing component is arranged on the cross beam. Both the upper processing platform and the lower processing platform are in a frame shape, and both the upper processing platform and the lower processing platform are provided with clamping components for clamping workpieces. It is characterized in that the frame includes two side supports respectively located on both sides, a cleaning channel with an opening is formed between the two side supports, upper slide rails are longitudinally fixed on the tops of the two side supports, a pair of lower slide rails are longitudinally fixed on the bottom in the cleaning channel, the upper processing platform is located above the cleaning channel, and the two side frames of the upper processing platform are respectively slidably connected to the two upper slide rails, the lower processing platform is located in the cleaning channel, and the two side frames of the lower processing platform are respectively slidably connected to the two lower slide rails.

[0006] The upper processing platform is located above the cleaning channel, and the lower processing platform is located within the cleaning channel, such that the upper and lower processing platforms are vertically staggered. Therefore, their longitudinal movements will not interfere with each other. When the upper processing platform is below the processing component for processing, the lower processing platform can move to be staggered with it for loading and unloading, ensuring the continuity and efficiency of processing. During processing, the debris generated will fall onto the upper slide rail and the lower slide rail, and it is necessary to clean them. Since in this application, the two upper slide rails are arranged on the tops of the two side supports, and the lower slide rail is arranged within the cleaning channel between the two side supports. When the lower processing platform is below the processing component for processing, the two upper slide rails are respectively located above both sides of the lower processing platform, and the lower processing platform and the workpiece it holds will not interfere with the debris cleaning of the two upper guide rails, and the debris cleaning of the two upper guide rails is relatively convenient. When the upper processing platform is below the processing component for processing, due to the provision of the cleaning channel, there is a large space between the upper processing platform and the lower slide rail, and the upper processing platform and the workpiece it holds will not interfere. Moreover, the upper processing platform is in a frame shape, and the cleaning channel has an opening, so that the staff can clean the debris on the lower slide rail through the cleaning channel, thus making the debris cleaning of the upper and lower slide rails more convenient.

[0007] In the above woodworking machine, the height difference between the upper slide rail and the lower slide rail is 1 / 3 - 1 / 2 of the distance between the two upper slide rails, and the vertical distance in the horizontal direction between the upper slide rail and the lower slide rail on the same side is 1 / 4 - 1 / 2 of the distance between the two upper slide rails. The distance between the two upper slide rails is set according to the width of the upper processing platform and the requirement of stability, and the vertical distance in the vertical direction and the vertical distance in the horizontal direction between the upper slide rail and the lower slide rail are associated with the distance between the two upper slide rails, such that the upper slide rail and the lower slide rail on the same side are separated farther, and when any one of the upper slide rail and the lower slide rail is in a working state, the other one can be conveniently cleaned.

[0008] In the above woodworking machine, the two upper slide rails are respectively fixed on the top surfaces of the two side supports. Upper sliders are respectively fixed on the lower side surfaces of the lateral two side frames of the upper processing platform, and the upper sliders on the two side frames are respectively slidably connected to the two upper slide rails. The upper sliders are fixed on the lower side surfaces of the side frames of the upper processing platform, such that when processing, the upper slide rails are covered and shielded by the side frames of the upper processing platform, reducing the accumulation of debris, and it is also relatively convenient to clean the upper slide rails located on the top surfaces of the side supports after the upper processing platform withdraws.

[0009] In the above-mentioned woodworking machine, the frame further includes a base located between the bottoms of the two side supports. The base consists of two strip-shaped blocks, which are respectively located at the longitudinal two ends of the cleaning channel, and the two ends of each strip-shaped block are fixedly connected to the two side supports respectively. The cross-section of the frame at the strip-shaped block is U-shaped, and two longitudinally arranged bottom beams are fixed on the two strip-shaped blocks. The two side supports, the two strip-shaped blocks and the two bottom beams are fixedly connected to each other to form the frame, which improves the overall structural strength. At the same time, the frame-shaped structure of the cleaning channel also facilitates the cleaning of internal debris.

[0010] In the above-mentioned woodworking machine, the two lower slide rails are respectively fixed on the upper side surfaces of the two bottom beams. Lower sliding blocks are fixedly installed on the lower side surfaces of the lateral frames on the two transverse sides of the lower processing platform, and the lower sliding blocks on the two side frames are respectively slidably connected to the two lower slide rails. The bottom beams are used to support the lower slide rails. Similarly, the lower sliding blocks are fixed on the lower side surfaces of the frames of the lower processing platform, so that the lower slide rails are covered and shielded by the frames of the lower processing platform during processing, reducing debris accumulation. Moreover, the lower slide rails on the top surfaces of the bottom beams at the bottom of the cleaning channel are also convenient to clean after the lower processing platform retracts.

[0011] In the above-mentioned woodworking machine, the inner edges of the tops of the two side supports both have mounting steps. Longitudinally arranged upper screws are installed on the step surfaces of the two mounting steps. Two longitudinally arranged upper nuts are fixed on the lower side surface of the upper processing platform. The two longitudinally arranged upper nuts are respectively screwed onto the two longitudinally arranged upper screws. The side supports are also provided with longitudinally arranged upper motors for driving the longitudinally arranged upper screws to rotate. The longitudinally arranged upper screws are lower than the upper slide rails. The longitudinally arranged upper screws need to be close to the upper slide rails to ensure the smooth operation of the longitudinally arranged upper screws through the guidance of the upper slide rails. However, when the two are arranged side by side and close to each other, it is difficult to clean the debris between them. Therefore, mounting steps are provided on the side supports, so that while the upper slide rails and the longitudinally arranged upper slide rails are close to each other, a height difference is formed, preventing debris from falling between them and being difficult to clean, and the two can be cleaned separately, which is more convenient.

[0012] In the above-mentioned woodworking machine, a longitudinally arranged lower screw is installed between the two lower slide rails on the base. A longitudinally arranged lower nut is fixed on the lower side surface of the lower processing platform. The longitudinally arranged lower nut is screwed onto the longitudinally arranged lower screw. The base is also provided with a longitudinally arranged lower motor for driving the longitudinally arranged lower screw to rotate. The longitudinally arranged lower screw is lower than the lower slide rails. The longitudinally arranged lower screw in the middle can apply force to the lower processing platform evenly, and the height difference between the longitudinally arranged lower screw and the lower slide rails is also convenient for debris cleaning.

[0013] In the above-mentioned woodworking machine, the clamping assembly includes a plurality of centers and a plurality of turntables. Rear mounting beams are fixedly provided on the upper side surfaces of one longitudinal end of the upper processing platform and the lower processing platform, and front mounting beams are slidably connected to the upper side surfaces of the other longitudinal end in the longitudinal direction. The front mounting beams and the rear mounting beams are both arranged horizontally. A plurality of the turntables are rotatably connected to the rear mounting beams and are driven to rotate by a rotating motor. A plurality of the centers are slidably connected to the front mounting beams and are driven to extend and retract by a cylinder. The plurality of centers and the plurality of turntables are opposite to each other one by one. Adjust the position of the front mounting beam according to the length of the columnar workpiece and lock it. Hoist the columnar workpiece between the centers and the turntables. The cylinder drives the center to extend and abut against one end of the workpiece, so that the other end of the workpiece abuts against the turntable. During the processing, the rotating motor drives the workpiece to rotate through the turntable, realizing the processing of different positions in the circumferential direction. Of course, in the actual design process, the clamping assembly can also be such that the rear mounting beam for installing the turntable is slidably connected to the upper processing platform and the lower processing platform in the longitudinal direction, while the front mounting beam is fixedly arranged.

[0014] In the above-mentioned woodworking machine, vertical columns are vertically and fixedly provided on both lateral sides of the machine frame. Vertical slide rails are fixedly provided on the front side surfaces of the vertical columns in the vertical direction. Vertical carriage plates are slidably connected to the vertical slide rails through vertical sliders. The two ends of the cross beam are respectively fixed to the two vertical carriage plates. A horizontal slide rail is fixedly provided on the front side surface of the cross beam in the horizontal direction. A horizontal carriage plate is slidably connected to the horizontal slide rail through a horizontal slider. The processing assembly is connected to the horizontal carriage plate. The vertical carriage plate realizes the vertical movement of the processing assembly through vertical movement, and the horizontal carriage plate realizes the horizontal movement of the processing assembly through horizontal movement. Combining with the longitudinal movement of the processing platform, three-dimensional translation between the processing assembly and the workpiece is thus realized.

[0015] In the above-mentioned woodworking machine, the processing assembly includes a tool holder and a plurality of processing motors. Brackets are fixedly provided on the front side surfaces of the two horizontal carriage plates. The tool holder is in a long strip shape and is arranged horizontally, and the two ends of the tool holder are respectively rotatably connected to the two brackets. A plurality of the processing motors are arranged horizontally and fixedly on the tool holder, and tool heads are mounted on the output shafts of the processing motors. The sequentially arranged processing motors can process multiple workpieces differently, and different tool heads can be selected by rotating the tool holder, improving the tool changing efficiency.

[0016] Compared with the prior art, the present woodworking machine has the following advantages:

[0017] 1. Since the present application arranges two upper slide rails on the tops of the two side supports, and arranges the lower slide rail in the cleaning channel between the two side supports, when the lower processing platform is located below the processing assembly for processing, the two upper slide rails are respectively located above both sides of the lower processing platform, and it is relatively convenient to clean the debris. When the upper processing platform is located below the processing assembly for processing, there is a large space between the upper processing platform and the lower slide rail, and the staff can clean the debris on the lower slide rail through the front and rear ends of the cleaning channel, so that it is relatively convenient to clean the debris on the upper and lower slide rails.

[0018] 2. Since an installation step is arranged on the side support, the upper slide rail and the longitudinal upper slide rail are close to each other while forming a height difference, avoiding debris from falling between the two and being difficult to clean, and the two can be cleaned separately, which is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of a woodworking machine.

[0020] Figure 2 is a front structural view of the woodworking machine.

[0021] Figure 3 is Figure 2 a structural sectional view at A-A in

[0022] Figure 4 is Figure 2 a magnified structural view at B in

[0023] Figure 5 is Figure 2 a magnified structural view at C in

[0024] In the figure, 1. Frame; 11. Side support; 111. Upper slide rail; 112. Installation step; 113. Longitudinal upper screw; 114. Longitudinal upper motor; 12. Base; 121. Lower slide rail; 122. Longitudinal lower screw; 123. Longitudinal lower motor; 13. Cleaning channel; 14. Bottom beam; 2. Cross beam; 21. Transverse slide rail; 22. Transverse motor; 3. Upper processing platform; 31. Upper slider; 32. Longitudinal upper nut; 4. Lower processing platform; 41. Lower slider; 42. Longitudinal lower nut; 5. Processing assembly; 51. Tool holder; 52. Processing motor; 53. Tool bit; 6. Clamping assembly; 61. Center point; 611. Cylinder; 62. Turntable; 621. Rotation motor; 63. Front mounting beam; 631. Guide block; 632. Locking block; 64. Rear mounting beam; 65. Guide rail; 7. Column; 71. Vertical slide rail; 72. Vertical motor; 8. Vertical carriage; 81. Vertical slider; 9. Cross carriage; 91. Transverse slider; 92. Bracket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following are specific embodiments of the present invention, in conjunction with the accompanying drawings, to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0026] Embodiment 1:

[0027] As Figure 1 、 Figure 2 、 Figure 3 shown, a woodworking machine includes a frame 1, a cross beam 2, an upper processing platform 3 and a lower processing platform 4. Vertical columns 7 are vertically fixed on both lateral sides of the frame 1. The cross beam 2 is horizontally arranged in the lateral direction, and both ends of the cross beam 2 are respectively connected to the two columns 7. The frame 1 is located below the cross beam 2. A processing assembly 5 is provided on the cross beam 2. Both the upper processing platform 3 and the lower processing platform 4 are in the shape of a rectangular frame, and the lateral width of the upper processing platform 3 is greater than the lateral width of the lower processing platform 4. Clamping assemblies 6 for clamping workpieces are provided on both the upper processing platform 3 and the lower processing platform 4. The frame 1 includes two side supports 11 and a base 12. The two side supports 11 are in the shape of a cuboid and are both arranged longitudinally. A cleaning channel 13 is formed between the two side supports 11 and runs through longitudinally, such that the cleaning channel 13 has an opening, and this opening is located at the front end. The base 12 is located between the bottoms of the two side supports 11, that is, the base 12 is located within the cleaning channel 13. The base 12 is composed of two strip-shaped blocks, and these two strip-shaped blocks are respectively located at the longitudinal two ends of the cleaning channel 13, and the two ends of the strip-shaped blocks are respectively fixedly connected to the inner side surfaces of the bottoms of the two side supports 11. The cross-section of the frame 1 at the strip-shaped block is in a U shape, and two longitudinally arranged bottom beams 14 are fixed on the two strip-shaped blocks. Upper slide rails 111 are longitudinally fixed on the top surfaces of both side supports 11. The upper processing platform 3 is located above the cleaning channel 13. Upper sliders 31 are fixedly connected to the lower side surfaces of the lateral frames on both sides of the upper processing platform 3, and the upper sliders 31 on the two side frames are respectively slidably connected to the upper slide rails 111 on the two side supports 11. The lateral frames on both sides of the upper processing platform 3 respectively cover the two upper slide rails 111. Lower slide rails 121 are longitudinally fixed on the upper side surfaces of the two bottom beams 14. The lower processing platform 4 is located within the cleaning channel 13. Lower sliders 41 are fixedly connected to the lower side surfaces of the lateral frames on both sides of the lower processing platform 4, and the lower sliders 41 on the two side frames are respectively slidably connected to the two lower slide rails 121. The lateral frames on both sides of the lower processing platform 4 respectively cover the two lower slide rails 121. The lengths of the two side supports 11, the upper slide rails 111, and the lower slide rails 121 are all greater than the sum of the longitudinal lengths of the upper processing platform 3 and the lower processing platform 4. The height difference between the upper slide rail 111 and the lower slide rail 121 is 1 / 3 of the distance between the two upper slide rails 111. The vertical distance in the lateral direction between the upper slide rail 111 and the lower slide rail 121 on the same side is 1 / 4 of the distance between the two upper slide rails 111.

[0028] Combined with Figure 4 、 Figure 5As shown, the inner edges of the tops of the two side supports 11 both have mounting steps 112, such that the width of the cleaning channel 13 becomes larger from bottom to top. Longitudinal upper screws 113 arranged longitudinally are mounted on the step surfaces of the two mounting steps 112. The longitudinal upper screws 113 are lower than the upper slide rails 111. Two longitudinal upper nuts 32 are fixed on the lower side surface of the upper processing platform 3. The two longitudinal upper nuts 32 are respectively screwed onto the two longitudinal upper screws 113. A longitudinal upper motor 114 is also fixed on the side support 11. The longitudinal upper motor 114 is connected to the longitudinal upper screw 113. A longitudinal lower screw 122 is mounted longitudinally on the base 12. The longitudinal lower screw 122 is located between the two lower slide rails 121, and the longitudinal lower screw 122 is lower than the lower slide rails 121. A longitudinal lower nut 42 is fixed on the lower side surface of the lower processing platform 4. The longitudinal lower nut 42 is screwed onto the longitudinal lower screw 122. A longitudinal lower motor 123 is also fixed on the base 12. The longitudinal lower motor 123 is connected to the longitudinal lower screw 122.

[0029] The clamping assembly 6 includes a plurality of center points 61 and a plurality of turntables 62. Rear mounting beams 64 are fixed on the upper side surfaces of the longitudinal rear ends of the upper processing platform 3 and the lower processing platform 4. Front mounting beams 63 are slidably connected longitudinally on the upper side surfaces of the longitudinal front ends, that is, guide rails 65 are fixed longitudinally on the upper side surfaces of the front ends of the upper processing platform 3 and the lower processing platform 4. Guide blocks 631 are fixed on the front mounting beams 63. The guide blocks 631 are slidably connected to the guide rails 65. Locking blocks 632 capable of locking the front mounting beams 63 by bolts are fixed on the front mounting beams 63. The front mounting beams 63 and the rear mounting beams 64 are both arranged transversely. A plurality of turntables 62 are rotatably connected to the rear mounting beams 64, and the plurality of turntables 62 are arranged transversely in sequence. A rotation motor 621 capable of driving the plurality of turntables 62 to rotate synchronously is also provided on the rear mounting beams 64. A plurality of center points 61 are slidably connected longitudinally to the front mounting beams 63, and the plurality of center points 61 are arranged transversely in sequence. A plurality of air cylinders 611 capable of driving the center points 61 to expand and contract are provided on the front mounting beams 63. The plurality of center points 61 and the plurality of turntables 62 are in one-to-one correspondence.

[0030] On the front side of each of the vertical columns 7, vertical slide rails 71 are fixedly arranged along the vertical direction. A vertical carriage 8 is slidably connected to the vertical slide rails 71 through vertical sliders 81. A vertical motor 72 is further provided on the vertical column 7. The vertical motor 72 drives the vertical carriage 8 to move vertically through a lead screw-nut assembly. Both ends of the cross beam 2 are respectively fixed on the two vertical carriages 8. On the front side of the cross beam 2, a horizontal slide rail 21 is fixedly arranged along the horizontal direction. A horizontal carriage 9 is slidably connected to the horizontal slide rail 21 through a horizontal slider 91. A horizontal motor 22 is further provided on the cross beam 2. The horizontal motor 22 drives the horizontal carriage 9 to move horizontally through a lead screw-nut assembly. The processing assembly 5 includes a tool holder 51 and a plurality of processing motors 52. On the front sides of both horizontal carriages 9, brackets 92 are fixedly arranged. The tool holder 51 is in a long strip shape and is arranged horizontally. Both ends of the tool holder 51 are respectively rotatably connected to the two brackets 92. The plurality of processing motors 52 are arranged horizontally and fixedly mounted on the tool holder 51. The processing motors 52 are double-rod motors, and tool bits 53 are mounted on the output shafts of the processing motors 52. Of course, it is also possible to fixedly arrange a fixed beam horizontally on the tops of the two vertical columns 7. The horizontal carriage 9 is slidably connected to the fixed beam horizontally, and the vertical carriage 8 is slidably connected to the horizontal carriage 9 vertically. At this time, the tool holder 51 is rotatably connected to the vertical carriage 8.

[0031] Embodiment 2:

[0032] The structure of this woodworking machine is basically the same as that of Embodiment 1. The difference lies in that both ends of the cross beam 2 are respectively fixed on the two vertical columns 7. A horizontal slide rail is fixedly arranged horizontally on the cross beam 2. The horizontal carriage 9 is slidably connected to the horizontal slide rail horizontally and is driven by a horizontally arranged lead screw-nut assembly. A vertical slide rail is fixedly arranged vertically on the horizontal carriage 9. The vertical carriage 8 is slidably connected to the vertical slide rail vertically and is driven by a vertically arranged lead screw-nut assembly. The processing assembly 5 is arranged on the vertical carriage 8, that is, the brackets 92 at both ends of the tool holder 51 are fixed on the vertical carriage 8, realizing three-dimensional translation between the processing assembly 5, the upper processing platform 3 and the lower processing platform 4.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although terms such as the frame 1, the side support 11, the upper slide rail 111, etc. are used more frequently herein, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. Woodworking machine, comprising a frame (1), a cross beam (2), an upper processing platform (3) and a lower processing platform (4), the cross beam (2) is horizontally arranged above the frame (1), a processing component (5) is provided on the cross beam (2), both the upper processing platform (3) and the lower processing platform (4) are in a frame shape, and clamping components (6) for clamping workpieces are provided on both the upper processing platform (3) and the lower processing platform (4), characterized in that, The frame (1) includes two side supports (11) respectively located on both sides. A cleaning channel (13) with an opening is formed between the two side supports (11). Upper slide rails (111) are longitudinally fixed on the tops of the two side supports (11). A pair of lower slide rails (121) are longitudinally fixed on the bottom in the cleaning channel (13). The upper processing platform (3) is located above the cleaning channel (13), and the two side frames of the upper processing platform (3) are respectively slidably connected to the two upper slide rails (111). The lower processing platform (4) is located in the cleaning channel (13), and the two side frames of the lower processing platform (4) are respectively slidably connected to the two lower slide rails (121). Inner edges at the tops of the two side supports (11) both have mounting steps (112). Longitudinal upper screws (113) arranged longitudinally are mounted on the step surfaces of the two mounting steps (112). Two longitudinal upper nuts (32) are fixed on the lower side surface of the upper processing platform (3). The two longitudinal upper nuts (32) are respectively screwed onto the two longitudinal upper screws (113). The side support (11) also is provided with a longitudinal upper motor (114) for driving the longitudinal upper screw (113) to rotate. The longitudinal upper screw (113) is lower than the upper slide rail (111).

2. The woodworking machine according to claim 1, characterized in that, The two upper slide rails (111) are respectively fixed on the top surfaces of the two side supports (11). Upper sliders (31) are fixed on the lower side surfaces of the side frames on the transverse two sides of the upper processing platform (3), and the upper sliders (31) on the two side frames are respectively slidably connected to the two upper slide rails (111).

3. The woodworking machine according to claim 2, characterized in that, The frame (1) further includes a base (12) located between the two side supports (11). The base (12) is composed of two strip-shaped blocks. The two strip-shaped blocks are respectively located at the longitudinal two ends of the cleaning channel (13), and the two ends of the strip-shaped blocks are respectively fixedly connected to the two side supports (11). The cross-section of the frame (1) at the strip-shaped blocks is U-shaped. Two bottom beams (14) arranged longitudinally are fixed on the two strip-shaped blocks.

4. The woodworking machine according to claim 3, characterized in that, The two lower slide rails (121) are respectively fixed on the upper side surfaces of the two bottom beams (14). Lower sliders (41) are fixed on the lower side surfaces of the side frames on the transverse two sides of the lower processing platform (4), and the lower sliders (41) on the two side frames are respectively slidably connected to the two lower slide rails (121).

5. The woodworking machine according to claim 3 or 4, characterized in that, A longitudinal lower screw (122) arranged longitudinally is installed between the two lower slide rails (121) on the base (12). A longitudinal lower nut (42) is fixed on the lower side surface of the lower processing platform (4). The longitudinal lower nut (42) is screwed onto the longitudinal lower screw (122). The base (12) is also provided with a longitudinal lower motor (123) for driving the longitudinal lower screw (122) to rotate. The longitudinal lower screw (122) is lower than the lower slide rail (121).

6. The woodworking machine according to any one of claims 1 to 4, characterized in that, The clamping assembly (6) includes a plurality of centers (61) and a plurality of turntables (62). Rear mounting beams (64) are fixedly provided on the upper side surfaces of one longitudinal end of the upper processing platform (3) and the lower processing platform (4). Front mounting beams (63) are slidably connected to the upper side surfaces of the other longitudinal end along the longitudinal direction. The front mounting beams (63) and the rear mounting beams (64) are both arranged along the transverse direction. A plurality of the turntables (62) are rotatably connected to the rear mounting beams (64) and are driven to rotate by rotation motors (621). A plurality of the centers (61) are slidably connected to the front mounting beams (63) and are driven to extend and retract by air cylinders (611). A plurality of the centers (61) and a plurality of the turntables (62) are arranged in one-to-one correspondence.

7. The woodworking machine according to any one of claims 1 to 4, characterized in that, Vertical columns (7) are vertically fixedly provided on both transverse sides of the frame (1). Vertical sliding rails (71) are fixedly provided on the front side surfaces of the vertical columns (7) along the vertical direction. A vertical sliding plate (8) is slidably connected to the vertical sliding rails (71) through vertical sliding blocks (81). Both ends of the cross beam (2) are respectively fixed to the two vertical sliding plates (8). A horizontal sliding rail (21) is fixedly provided on the front side surface of the cross beam (2) along the transverse direction. A horizontal sliding plate (9) is slidably connected to the horizontal sliding rail (21) through a horizontal sliding block (91). The processing assembly (5) is connected to the horizontal sliding plate (9).

8. The woodworking machine according to claim 7, characterized in that, The processing assembly (5) includes a tool holder (51) and a plurality of processing motors (52). Brackets (92) are fixedly provided on the front side surfaces of the two horizontal sliding plates (9). The tool holder (51) is in a long strip shape and is arranged along the transverse direction. Both ends of the tool holder (51) are respectively rotatably connected to the two brackets (92). A plurality of the processing motors (52) are arranged in a transverse row and are fixed to the tool holder (51). Tool heads (53) are mounted on the output shafts of the processing motors (52).

9. Woodworking machine, comprising a frame (1), a cross beam (2), an upper processing platform (3) and a lower processing platform (4), wherein the cross beam (2) is horizontally arranged above the frame (1), a processing assembly (5) is arranged on the cross beam (2), the upper processing platform (3) and the lower processing platform (4) are both in a frame shape, and the upper processing platform (3) and the lower processing platform (4) are both provided with clamping assemblies (6) for clamping workpieces, characterized in that, The frame (1) includes two side supports (11) respectively located on both sides. A cleaning channel (13) with an opening is formed between the two side supports (11). Upper sliding rails (111) are fixedly provided on the tops of the two side supports (11) along the longitudinal direction. A pair of lower sliding rails (121) are fixedly provided on the bottom in the cleaning channel (13) along the longitudinal direction. The upper processing platform (3) is located above the cleaning channel (13), and the two side frames of the upper processing platform (3) are respectively slidably connected to the two upper sliding rails (111). The lower processing platform (4) is located in the cleaning channel (13), and the two side frames of the lower processing platform (4) are respectively slidably connected to the two lower sliding rails (121). The height difference between the upper sliding rails (111) and the lower sliding rails (121) is 1 / 3 to 1 / 2 of the distance between the two upper sliding rails (111). The vertical distance in the transverse direction between the upper sliding rail (111) and the lower sliding rail (121) on the same side is 1 / 4 to 1 / 2 of the distance between the two upper sliding rails (111).

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