Numerical control planer type milling machine with convenient cleaning

Abstract

The application discloses a numerical control planer milling machine convenient to clean, and relates to the field of planer milling machines. The workbench comprises a workbench body. A plurality of vertical lifting grooves are formed on the workbench body and are distributed along the vertical direction of the moving direction of the workbench. The upper end of the vertical lifting groove is provided with an opening. A closed seat is vertically arranged in the vertical lifting groove. A plurality of vertical lifting assemblies are arranged on the workbench body. The vertical lifting assembly is in one-to-one correspondence with the closed seat and is used for driving the corresponding closed seat. When the closed seat is at the lowermost end, the upper end surface of the closed seat and the upper part of the vertical lifting groove form an inverted T-shaped clamp mounting groove. When the closed seat is at the uppermost end, the closed seat fills the entire clamp mounting groove. The waste material milled by the machine only enters the clamp mounting groove used by the tool clamp mounting, thereby greatly reducing the number of clamp mounting grooves required to be cleaned, and improving the convenience of cleaning.

Description

Technical Field

[0001] This application relates to the field of gantry milling machines, and more particularly to a CNC gantry milling machine that is easy to clean. Background Technology

[0002] A gantry milling machine, also known as a gantry milling machine, is a milling machine with a gantry frame and a horizontal long bed. It is suitable for semi-finishing and finishing in industries such as heavy machinery, locomotives, power generation, machine tools, automobiles, and molds. It can also be used for roughing. It has high machining accuracy and production efficiency and is suitable for machining the planes and inclined surfaces of large workpieces in batch and mass production. A gantry milling machine includes a gantry frame, a horizontal worktable that moves horizontally on the gantry frame, a vertical worktable that moves vertically on the horizontal worktable, a milling and turning mechanism (60) at the bottom of the vertical worktable, a work base set in the opening of the gantry frame, and a worktable that moves horizontally on the work base. The movement of the horizontal worktable, the vertical worktable, and the worktable completes the movement in the XYZ directions. During this process, the milling and turning mechanism (60) mills the surface of the workpiece.

[0003] The worktable has several inverted T-shaped slots evenly distributed perpendicular to the direction of movement of the worktable. These inverted T-shaped slots are used to install work fixtures. During operation, the workpiece is installed on the work fixture for milling. During the milling process, metal chips and other waste materials are generated, which will enter the inverted T-shaped slots. When cleaning the waste materials, it is necessary to clean the waste materials in the inverted T-shaped slots one by one, which makes the worktable cleaning inconvenient. Summary of the Invention

[0004] To address the technical problem of inconvenient worktable cleaning, this application provides a CNC gantry milling machine that is easy to clean.

[0005] The CNC gantry milling machine provided in this application, which is easy to clean, adopts the following technical solution:

[0006] A CNC gantry milling machine that is easy to clean includes a gantry frame, a horizontally movable horizontal workbench mounted on the gantry frame, a vertically movable vertical workbench mounted on the horizontal workbench, a milling and turning mechanism mounted at the bottom of the vertical workbench, a work base mounted within an opening in the gantry frame, and a worktable mounted horizontally on the work base. The movement directions of the worktable and the horizontal workbench are perpendicular. The worktable includes a worktable body. The worktable body is formed with a plurality of vertical lifting grooves distributed vertically along the movement direction of the worktable. The upper end of each vertical lifting groove is open. A closed seat is vertically movable within each vertical lifting groove. A plurality of vertical lifting components are provided on the worktable body. Each vertical lifting component corresponds to a closed seat, and the vertical lifting component drives the closed seat on the corresponding side. When the closed seat is at its lowest point, an inverted T-shaped fixture mounting groove is formed between the upper end face of the closed seat and the upper part of the vertical lifting groove. When the closed seat is at its highest point, the closed seat fills the entire fixture mounting groove.

[0007] By adopting the above technical solution, during operation, the tooling fixture is assembled through several fixture mounting slots. Then, the vertical lifting component drives the corresponding closed seat to rise, so that the unused fixture mounting slots of the tooling fixture are filled by the closed seat. In this way, the waste material from milling will only enter the fixture mounting slots used for tooling fixture installation, which greatly reduces the number of fixture mounting slots that need to be cleaned, thereby improving the convenience of cleaning.

[0008] Optionally, the side of the workbench body is formed with a U-shaped waste discharge rack with an opening facing away from the feed end; the cross-section of the waste discharge rack is L-shaped and its vertical part is located at the end of the horizontal part away from the workbench body; the upper surface of the vertical part of the waste discharge rack is higher than the upper surface of the workbench body; the upper surface of the horizontal part of the workbench body is lower than the lower sidewall of the fixture mounting groove.

[0009] By adopting the above technical solution, during milling, since the upper surface of the vertical part of the scrap rack is higher than the upper surface of the worktable body, it is beneficial for the milled scrap to enter the scrap rack. At the same time, since the upper surface of the horizontal part of the worktable body is lower than the lower side wall of the fixture mounting slot, during cleaning, the scrap on the upper surface of the worktable body and the scrap in the fixture mounting slot will fall into the scrap rack, which facilitates the collection of scrap.

[0010] Optionally, the sealing seat includes an inverted T-shaped lower sealing block and a pair of cuboid upper sealing blocks; the pair of upper sealing blocks are located on both sides of the upper part of the lower sealing block and are distributed vertically along the moving direction of the worktable; the upper sealing blocks are vertically slidably disposed on the upper part of the lower sealing block; the vertical lifting assembly is used to drive the lower sealing block to rise vertically; during the rise of the lower sealing block, the pair of upper sealing blocks are driven to rise; when the lower sealing block and the pair of upper sealing blocks are at the uppermost position, the lower sealing block and the pair of upper sealing blocks fill the entire fixture mounting slot; when the lower sealing block and the pair of upper sealing blocks are at the lowermost position, the upper surfaces of the lower sealing block and the pair of upper sealing blocks are on the same horizontal plane and this horizontal plane forms an inverted T-shaped fixture mounting slot with the upper part of the vertical lifting slot; when the lower sealing block is at the lowermost position and the pair of upper sealing blocks are in contact with the lower part of the lower sealing block, the upper end of the vertical part of the lower sealing block is inserted into the upper opening of the vertical lifting slot.

[0011] By adopting the above technical solution, in the initial state, all the lower and upper closing blocks are at the bottom, which facilitates the support feet of the working fixture to enter the fixture mounting slot. Then, the vertical lifting component drives the lower closing blocks to rise and press against the support feet of the working fixture, thus facilitating the limiting of the working fixture. At the same time, in the fixture mounting slots not used by the support feet of the working fixture, the vertical lifting component on the corresponding side drives the lower closing block to rise. During the rise of the lower closing block, a pair of upper closing blocks also rise, until the lower closing block and the pair of upper closing blocks fill the fixture mounting slots on the corresponding side, thus effectively preventing waste from entering the fixture mounting slots.

[0012] Optionally, the workbench body has several horizontally distributed blowing assemblies on its end face away from the feed end; each blowing assembly corresponds to a vertical lifting groove; each blowing assembly includes a vertically lifting blowing seat and a blowing lifting component for driving the blowing seat to move vertically; a pair of horizontally distributed blowing nozzles are installed on the end face of the blowing seat near the vertical lifting groove; the blowing nozzles are connected to an external air supply device; when the lower sealing block is at the lowest point and a pair of upper sealing blocks are in contact with the lower part of the lower sealing block, two rectangular ventilation holes are formed between the upper part of the lower sealing block and the horizontal part of the clamp mounting groove; when the blowing seat is at the highest point, each blowing nozzle corresponds to a ventilation hole and the blowing nozzle is directly facing the ventilation hole.

[0013] By adopting the above technical solution, when waste needs to be cleaned, the tooling fixture is removed, and then the vertical lifting assembly of the lower sealing block in the fixture mounting slot is inserted into the upper opening of the vertical lifting slot. At this time, the lower sealing block is at the bottom and a pair of upper sealing blocks are in contact with the lower part of the lower sealing block. Then, a pair of blowers blow air out of the vent hole and onto the waste discharge rack. Then, the vertical lifting assembly continues to drive the lower sealing block to rise, and the pair of upper sealing blocks also rise synchronously to the top. At this time, the lower sealing block and the pair of upper sealing blocks fill the corresponding side of the fixture mounting slot. At this time, the upper surface of the lower sealing block is flush with the upper surface of the workbench body, which is conducive to subsequent cleaning. In summary, waste cleaning is convenient.

[0014] Optionally, the vertical lifting groove includes a lower rectangular sliding groove, a middle rectangular sliding groove, and an upper rectangular sliding groove; the middle sliding groove and the upper sliding groove are opened at both ends parallel to the moving direction of the worktable; the lower part of the lower sealing block is vertically slidably disposed in the lower sliding groove; a pair of upper sealing blocks are vertically slidably disposed in the middle sliding groove; the width of the middle sliding groove in the vertical direction along the moving direction of the worktable is greater than the width of the lower sliding groove in the vertical direction along the moving direction of the worktable; when the pair of upper sealing blocks are at the lowest point, the pair of upper sealing blocks abut against the lower sidewall of the middle sliding groove.

[0015] By adopting the above technical solution, in the initial state, the lower closing block and a pair of upper closing blocks are at the bottom, and the pair of upper closing blocks abut against the lower side wall of the middle sliding groove; when the lower closing block moves upward, the upper end of the lower closing block first exceeds the pair of upper closing blocks. At this time, the upper end of the lower closing block and the upper end of the pair of lower closing blocks form an inverted T-shape that adapts to the fixture mounting groove. Then the lower closing block and the pair of upper closing blocks rise together to fill the fixture mounting groove. This structure is simple and adaptable to the installation of tooling fixtures and the filling of the fixture mounting groove.

[0016] Optionally, the upper surface of the horizontal part of the waste material discharge rack is formed into a V-shaped discharge trough; the lower end of the discharge trough has a rounded corner.

[0017] By adopting the above technical solution, the material chute facilitates the accumulation of waste, which is beneficial for subsequent waste collection and cleaning.

[0018] Optionally, a cleaning frame is detachably slidably connected between a pair of vertical portions of the waste discharge rack that are parallel to the moving direction of the workbench; the moving direction of the cleaning frame is parallel to the moving direction of the workbench; the cleaning frame includes an upper cleaning seat, a lower cleaning plate that is vertically movably disposed on the lower end surface of the upper cleaning seat, and a vertical adjustment member for adjusting the vertical position of the lower cleaning plate; the length direction of the lower cleaning plate is perpendicular to the moving direction of the workbench and a plurality of bristles are provided on its lower end surface.

[0019] By adopting the above technical solution, during cleaning, the cleaning frame is installed between a pair of vertical parts of the material drop frame. Then, the vertical position of the lower cleaning plate is adjusted by the vertical adjustment component so that the bristles contact the upper surface of the workbench body. Then, the cleaning frame is moved so that the bristles clean the upper surface of the workbench body.

[0020] Optionally, the lower cleaning plate is provided with cleaning components at both ends along its length; a pair of cleaning components are located on both sides of the workbench body and face the corresponding material drop troughs; the cleaning components clean the waste material in the corresponding material drop troughs as the cleaning frame moves.

[0021] By adopting the above technical solution, as the cleaning rack moves, a pair of cleaning components clean the waste in the longitudinal discharge chute, so that all the waste enters the transverse discharge chute, which is conducive to waste collection.

[0022] Optionally, the waste discharge rack has a waste discharge port formed in the middle near the feeding end; the waste discharge port is connected to the discharge trough; and an opening and closing plate is detachably connected inside the waste discharge port.

[0023] By adopting the above technical solution, by opening the opening and closing plate, the waste material gathered in the horizontal discharge chute can then leave from the waste discharge port, which is conducive to the discharge and collection of waste material.

[0024] Optionally, the upper cleaning seat includes an upper cleaning horizontal plate and a pair of upper cleaning brackets formed in the shape of a U-shape with downward openings at both ends of the upper cleaning horizontal plate along its length; the length direction of the upper cleaning horizontal plate is perpendicular to the moving direction of the workbench body; the upper cleaning brackets are sleeved from top to bottom on the upper end of the vertical part of the waste material drop rack on the corresponding side.

[0025] By adopting the above technical solution, when installing the cleaning rack, a pair of upper cleaning brackets are fitted from top to bottom onto the upper ends of a pair of vertical parts of the waste material discharge rack, which facilitates the assembly and disassembly of the cleaning rack.

[0026] In summary, the beneficial effects of this application are as follows:

[0027] 1. The waste material from milling will only enter the fixture mounting slots used for tooling installation, which greatly reduces the number of fixture mounting slots that need to be cleaned, thereby improving the convenience of cleaning.

[0028] 2. It facilitates waste collection, which is beneficial for subsequent waste collection and cleanup. Attached Figure Description

[0029] Figure 1 This is a partial cross-sectional structural diagram of this application.

[0030] Figure 2 This is a cross-sectional structural schematic diagram of the gantry 30 of this application.

[0031] Figure 3 This application is Figure 2 A schematic diagram of the cross-section of AA.

[0032] Figure 4 This application is Figure 3 A magnified schematic diagram of part D.

[0033] Figure 5 This application is Figure 2 A magnified schematic diagram of part B in the diagram.

[0034] Figure 6 This application is Figure 2 A magnified schematic diagram of part C.

[0035] Figure 7 This is a front view structural schematic diagram of the feed side of the gantry 30 of this application.

[0036] Figure 8 This is a front view structural schematic diagram of the discharge side of the gantry 30 of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Working base;

[0039] 20. Worktable; 21. Worktable body; 210. Vertical lifting groove; 2100. Middle sliding groove; 2101. Lower sliding groove; 2102. Upper sliding groove; 2103. Rack and pinion moving groove; 211. Lower vertical guide rod; 212. Drive support plate; 22. Lower sealing block; 221. Sealing bottom block; 222. Upper sealing top block; 223. Vertical guide block; 224. Vertical drive rack; 23. Upper sealing... 230. Closed block; 231. Vertical sliding groove; 24. Vertical guide rod; 24. Scrap material discharge rack; 240. Discharge chute; 2400. Scrap material outlet; 2401. Vertical connecting slot; 241. Opening and closing plate; 2411. Vertical connecting plug; 2412. Lifting handle; 25. Air blower base; 250. Air blower nozzle; 251. Air blower lifting cylinder; 26. Vertical drive gear; 261. Vertical drive motor;

[0040] 30. Gantry frame;

[0041] 40. Horizontal work seat;

[0042] 50. Vertical work stand;

[0043] 60. Milling and turning mechanism;

[0044] 70. Cleaning rack; 71. Upper cleaning seat; 711. Upper cleaning horizontal plate; 712. Upper cleaning bracket; 7121. Steel ball; 72. Lower cleaning plate; 721. Adjusting guide rod; 73. Brush bristles; 74. Vertical adjustment bolt; 75. Side limit bolt; 76. Side cleaning connecting seat; 77. Cleaning assembly; 771. Cleaning support plate; 772. Connecting threaded rod; 773. Side brush bristles. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0046] This application discloses a CNC gantry milling machine that is easy to clean, with reference to... Figure 1The system includes a gantry frame 30, a horizontal workbench 40 that moves horizontally on the gantry frame 30, a vertical workbench 50 that moves vertically on the horizontal workbench 40, a milling and turning mechanism 60 located at the bottom of the vertical workbench 50, a work base 10 located within the opening of the gantry frame 30, and a worktable 20 that moves horizontally on the work base 10. The movement directions of the worktable 20 and the horizontal workbench 40 are perpendicular. A cleaning rack 70 is detachably connected to the worktable 20. The driving devices for the horizontal workbench 40, the vertical workbench 50, and the worktable 20 are existing technologies and will not be described in detail here. The worktable 20 includes a rectangular worktable body 21 and a U-shaped waste discharge rack 24 formed on the side of the worktable body 21 with an opening facing away from the feed end. The cleaning rack 70 is used to clean the waste on the upper surface of the worktable body 21 and to collect the waste in the waste discharge rack 24.

[0047] refer to Figure 2 The worktable body 21 has a plurality of vertical lifting grooves 210 distributed vertically along the moving direction of the worktable 20. The vertical lifting grooves 210 include a lower rectangular groove-shaped lower sliding groove 2101, a middle rectangular groove-shaped middle sliding groove 2100, and an upper rectangular groove-shaped upper sliding groove 2102. The middle sliding groove 2100 and the upper sliding groove 2102 are opened at both ends parallel to the moving direction of the worktable 20. The upper sliding groove 2102 is opened at the upper end. The width of the middle sliding groove 2100 in the vertical direction along the moving direction of the worktable 20 is greater than the width of the lower sliding groove 2101 in the vertical direction along the moving direction of the worktable 20.

[0048] refer to Figure 2 The worktable 20 also includes several enclosed seats, several vertical lifting components, and several air blowing components; the vertical lifting groove 210, the enclosed seats, the vertical lifting components, and the air blowing components are arranged in a corresponding manner; the enclosed seats are vertically lifted and lowered in the vertical lifting groove 210 on the corresponding side; the vertical lifting components are used to drive the enclosed seats on the corresponding side to rise and fall vertically; the air blowing components are arranged on the end face of the worktable body 21 away from its feed end and are used to provide airflow parallel to the moving direction of the worktable 20.

[0049] refer to Figure 2 , Figure 3 and Figure 5The sealing seat includes a lower sealing block 22 and a pair of cuboid upper sealing blocks 23; the lower sealing block 22 includes a cuboid lower sealing bottom block 221 vertically sliding in the sliding groove 2101 and an upper sealing top block 222 formed in the middle of the upper end face of the lower sealing bottom block 221; the upper sealing top block 222 and the lower sealing bottom block 221 have equal lengths parallel to the moving direction of the worktable 20; the upper sealing top block 222 has a width perpendicular to the moving direction of the worktable 20. The width is less than the width of the lower closed bottom block 221 along the vertical direction of the moving direction of the worktable 20; a pair of upper closed blocks 23 are located on both sides of the upper closed top block 222 and the three are respectively along the vertical direction of the moving direction of the worktable 20; the pair of upper closed blocks 23 slide vertically in the middle sliding groove 2100; vertical guide blocks 223 are respectively formed on the end faces of the upper closed top block 222 near the pair of upper closed blocks 23; vertical guide blocks 223 are respectively formed on the end faces of the pair of upper closed blocks 23 near each other. The vertical guide block 223 slides vertically through a vertical sliding groove 230; several vertical guide rods 231 are formed between the upper and lower side walls of the vertical sliding groove 230, distributed in a parallel direction along the moving direction of the worktable 20; the vertical guide block 223 is vertically sleeved on the corresponding vertical guide rod 231; when a pair of upper closing blocks 23 and lower closing blocks 22 are at their lowest points, the pair of upper closing blocks 23 abut against the lower side wall of the middle sliding groove 2100, and the upper end surfaces of the pair of upper closing blocks 23 and lower closing blocks 22... The three parts of the clamping groove 2100, the upper part of the middle sliding groove 2100, and the lower sliding groove 2101 are on the same horizontal plane and form an inverted T-shaped clamping groove with an open top. The vertical distance between the upper end face of the closed bottom block 221 and the pair of lower closed blocks 22 is equal to the vertical distance between the upper end face of the vertical guide block 223 and the upper side wall of the vertical sliding groove 230. The vertical distance between the upper end face of the closed bottom block 221 and the pair of lower closed blocks 22 is greater than the height of the horizontal part of the clamping groove.

[0050] refer to Figure 3 , Figure 7 and Figure 8The vertical lifting assembly includes a pair of vertical drive motors 261 and a pair of vertical drive gears 26; the vertical drive motors 261 are servo motors; the vertical drive motors 261 and the vertical drive gears 26 correspond one-to-one; several horizontally evenly distributed drive support groups are formed on the two end faces of the worktable body 21 perpendicular to its moving direction; the drive support groups correspond one-to-one with the vertical lifting grooves 210; the drive support group includes a pair of horizontally distributed drive support plates 212; the vertical drive gears 26 are rotatably connected between the pair of drive support plates 212 of the corresponding drive support group; The vertical drive motor 261 is fixed on the drive support plate 212 of the drive support assembly on the corresponding side; the rotation center shaft of the vertical drive gear 26 is coaxially and fixedly connected to the output shaft of the vertical drive motor 261 on the corresponding side; the sliding groove 2101 has vertically penetrating rack moving grooves 2103 formed on a pair of side walls perpendicular to the moving direction of the worktable body 21; the upper end of the rack moving groove 2103 is open; the two end faces of the lower closed block 22 are respectively formed with vertical drive racks 224; the vertical drive racks 224 mesh with the vertical drive gear 26 on the corresponding side.

[0051] In order to improve the accuracy and stability of the vertical movement of the lower closing block 22, a number of lower vertical guide rods 211 are formed on the lower side wall of the sliding groove 2101, which are distributed along the movement direction of the worktable 20; the lower closing block 22 is vertically sleeved on the lower vertical guide rods 211.

[0052] refer to Figure 2 and Figure 5 The blowing assembly includes a vertically lifting blowing seat 25 and a blowing lifting component for driving the blowing seat 25 to move vertically. The blowing lifting component includes a pair of blowing lifting electric cylinders 251 fixed on the end face of the worktable body 21 away from its feed end. The blowing seat 25 is fixed on the upper end of the pair of blowing lifting electric cylinders 251. A pair of horizontally distributed blowing nozzles 250 are installed on the end face of the blowing seat 25 near the vertical lifting groove 210. The blowing nozzles 250 are connected to an external air supply device. When the lower sealing block 22 is at the lowest end and the pair of upper sealing blocks 23 are in contact with the lower sealing bottom block 221, two rectangular ventilation holes are formed between the upper part of the lower sealing block 22 and the horizontal part of the clamp mounting groove. When the blowing seat 25 is at the highest end, the blowing nozzles 250 correspond one-to-one with the ventilation holes and the blowing nozzles 250 face the ventilation holes.

[0053] refer to Figure 2 and Figure 3 The waste material unloading rack 24 has an L-shaped cross-section and its vertical part is located at the end of the horizontal part away from the workbench body 21; the upper surface of the vertical part of the waste material unloading rack 24 is higher than the upper surface of the workbench body 21; the upper surface of the horizontal part of the workbench body 21 is lower than the lower side wall of the fixture mounting groove.

[0054] refer to Figures 2-4The upper surface of the horizontal part of the waste discharge rack 24 is formed into a V-shaped discharge trough 240; the lower end of the discharge trough 240 is rounded; a waste discharge port 2400 is formed in the middle part of the waste discharge rack 24 near the feeding end; the waste discharge port 2400 is connected to the discharge trough 240; and an opening and closing plate 241 is detachably connected inside the waste discharge port 2400.

[0055] refer to Figure 3 and Figure 4 Vertical connecting blocks 2411 are formed on a pair of vertical end faces of the opening and closing plate 241 that are parallel to the moving direction of the worktable 20; vertical connecting slots 2401 that mate with the vertical connecting blocks 2411 are formed on a pair of vertical side walls of the waste discharge port 2400; a lifting handle 2412 is formed on the upper end of the opening and closing plate 241; the bottom of the opening and closing plate 241 is formed as a 45-degree inclined surface; the end of the waste discharge port 2400 near the opening is formed as a 45-degree inclined surface that mates with the bottom of the opening and closing plate 241.

[0056] refer to Figure 2 and Figure 6 The cleaning rack 70 includes an upper cleaning seat 71, a lower cleaning plate 72 that is vertically movable on the lower end surface of the upper cleaning seat 71, and a vertical adjustment member for adjusting the vertical position of the lower cleaning plate 72; the length direction of the lower cleaning plate 72 is perpendicular to the moving direction of the worktable 20, and a plurality of bristles 73 are provided on its lower end surface.

[0057] refer to Figure 2 and Figure 6 The upper cleaning seat 71 includes an upper cleaning horizontal plate 711 and a pair of "U"-shaped upper cleaning brackets 712 formed at both ends of the upper cleaning horizontal plate 711 with downward openings. The length direction of the upper cleaning horizontal plate 711 is perpendicular to the moving direction of the workbench body 21. The upper cleaning brackets 712 are sleeved from top to bottom on the upper end of the vertical part of the waste material drop rack 24 on the corresponding side. In order to increase the smoothness of sliding, a number of steel balls 7121 are respectively embedded on the three inner side walls of the upper cleaning brackets 712. The steel balls 7121 are in contact with the end face of the waste material drop rack 24 on the corresponding side.

[0058] refer to Figure 2 The upper surface of the lower cleaning plate 72 is formed with a plurality of adjusting guide rods 721 distributed along its length direction; the adjusting guide rods 721 vertically pass through the upper cleaning horizontal plate 711; the vertical adjusting component includes a vertical adjusting bolt 74 that is vertically inserted and screwed to the center of the upper cleaning horizontal plate 711; the lower end of the vertical adjusting bolt 74 is rotatably connected to the lower cleaning plate 72; in order to further maintain the levelness of the lower cleaning plate 72, the two ends of the upper cleaning horizontal plate 711 in the length direction are respectively vertically inserted and screwed with side limiting bolts 75, the bottom of the side limiting bolts 75 abutting against the upper surface of the lower cleaning plate 72.

[0059] refer to Figure 2 Cleaning components 77 are provided at both ends of the lower cleaning plate 72 along its length direction; a pair of cleaning components 77 are located on both sides of the workbench body 21 and face the corresponding material drop trough 240; the cleaning components 77 clean the waste material in the corresponding material drop trough 240 as the cleaning frame 70 moves.

[0060] refer to Figure 2 The cleaning component 77 includes a cleaning support plate 771, a connecting threaded rod 772 fixed to the upper end face of the cleaning support plate 771, and a plurality of side bristles 773 fixed to the lower end face of the cleaning support plate 771 and the connecting threaded rod 772. The lower end shape of the brush composed of the side bristles 773 is the same as the shape of the material drop trough 240. The lower end face of the lower cleaning plate 72 has side cleaning connecting seats 76 formed at both ends along its length. The cleaning component 77 corresponds one-to-one with the side cleaning connecting seats 76 and the connecting threaded rod 772 is vertically screwed to the lower end face of the side cleaning connecting seat 76.

[0061] The working principle of a CNC gantry milling machine that is easy to clean, as described in this application, is as follows:

[0062] During milling, the cleaning rack 70 is removed, and then the tooling fixture is installed in several fixture mounting slots on the corresponding side. Then, the lower closing blocks 22 in the remaining vertical lifting slots 210 rise. During the rise of the lower closing blocks 22, a pair of upper closing blocks 23 are also raised until the lower closing blocks 22 and the pair of upper closing blocks 23 reach their highest points, thus filling the entire fixture mounting slot. This method of milling prevents waste generated during the milling process from entering the slot filled with closing blocks 22 and the pair of upper closing blocks 23. Within the fixture mounting slot, only the fixture used for mounting the fixture and the scrap discharge rack 24 will fall into the fixture mounting slot. After milling, the tooling fixture is removed, and then the lower sealing block 22 in the vertical lifting slot 210 corresponding to the fixture mounting slot of the tooling fixture rises until the lower sealing bottom block 221 contacts the pair of upper sealing blocks 23 on the upper side. At this time, two rectangular vent holes are formed between the upper sealing top block 222 and the horizontal part of the fixture mounting slot. Then the blower seat 25 rises, so that the blower nozzle 250 is directly facing the vent holes. Airflow is blown from nozzle 250, thus blowing the waste material in the vent hole into the transverse part of the waste material discharge rack 24 near the feed end; then the lower sealing block 22 continues to rise until the lower sealing block 22 and a pair of upper sealing blocks 23 fill the clamp mounting slot, at which point the upper end face of the lower sealing block 22 is flush with the upper end face of the workbench body 21; then the cleaning rack 70 is installed, and then the vertical position of the lower cleaning plate 72 is adjusted so that the bottom of the bristles 73 contacts the upper end face of the workbench body 21, and then the vertical position of the pair of cleaning components 77 is adjusted. The bottom of the side brush bristles 773 comes into contact with the discharge trough 240. Then, the cleaning rack 70 moves from the side away from the feed end toward the feed end, so that the waste in the pair of longitudinal sections of the waste discharge rack 24 and the waste on the upper surface of the workbench body 21 enter the transverse section of the waste discharge rack 24. Then, the opening and closing plate 241 is removed to open the waste discharge port 2400. Then, the waste accumulated in the transverse section of the waste discharge rack 24 is swept out from the waste discharge port 2400 by hand with a brush and enters the waste recycling bin (not shown).

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A CNC gantry milling machine that is easy to clean, comprising a gantry (30), a horizontal workbench (40) movably mounted on the gantry (30), a vertical workbench (50) movably mounted on the horizontal workbench (40), a milling and turning mechanism (60) mounted at the bottom of the vertical workbench (50), a work base (10) mounted in an opening of the gantry (30), and a worktable (20) movably mounted on the work base (10); wherein the movement directions of the worktable (20) and the horizontal workbench (40) are perpendicular; characterized in that: The workbench (20) includes a workbench body (21); the workbench body (21) is formed with a plurality of vertical lifting grooves (210) distributed vertically along the moving direction of the workbench (20); the upper end of the vertical lifting groove (210) is provided with an opening; a closed seat is vertically moved in the vertical lifting groove (210); a plurality of vertical lifting components are provided on the workbench body (21); the vertical lifting components correspond one-to-one with the closed seats and the vertical lifting components are used to drive the closed seats on the corresponding side; when the closed seat is at the lowest point, an inverted T-shaped clamp mounting groove is formed between the upper end face of the closed seat and the upper part of the vertical lifting groove (210); when the closed seat is at the lowest point... At the top, the sealing seat fills the entire fixture mounting slot. The side of the workbench body (21) is formed with a "U"-shaped waste discharge rack (24) with its opening facing away from the feed end. The cross-section of the waste discharge rack (24) is L-shaped, and its vertical part is located at the end of the horizontal part away from the workbench body (21). The upper surface of the vertical part of the waste discharge rack (24) is higher than the upper surface of the workbench body (21). The upper surface of the horizontal part of the waste discharge rack (24) is lower than the lower sidewall of the fixture mounting slot. The sealing seat includes an inverted T-shaped lower sealing block (22) and a pair of cuboid upper sealing blocks (23). The pair of upper sealing blocks (23) are located at the lower sealing block (22). The upper two sides are distributed vertically along the moving direction of the worktable (20); the upper sealing block (23) is vertically slidably disposed on the upper part of the lower sealing block (22); the vertical lifting assembly is used to drive the lower sealing block (22) to rise vertically; during the rise of the lower sealing block (22), it drives a pair of upper sealing blocks (23) to rise; when the lower sealing block (22) and the pair of upper sealing blocks (23) are at the uppermost position, the lower sealing block (22) and the pair of upper sealing blocks (23) fill the entire fixture mounting slot; when the lower sealing block (22) and the pair of upper sealing blocks (23) are at the lowermost position, the three of the lower sealing block (22) and the pair of upper sealing blocks (23) are... The upper end face is on the same horizontal plane and this horizontal plane forms an inverted T-shaped clamp mounting groove with the upper part of the vertical lifting groove (210); when the lower closing block (22) is at the lowest end and a pair of upper closing blocks (23) are in contact with the lower part of the lower closing block (22), the upper end of the vertical part of the lower closing block (22) is inserted into the upper opening of the vertical lifting groove (210); a number of horizontally distributed blowing components are provided on the end face of the worktable body (21) away from its feeding end; the blowing components correspond one-to-one with the vertical lifting groove (210); the blowing components include a blowing seat (25) that is vertically lifted and a blowing lifting component for driving the blowing seat (25) to rise and fall vertically;A pair of horizontally distributed air nozzles (250) are installed on the end face of the blower base (25) near the vertical lifting groove (210); the air nozzles (250) are connected to an external air supply device; when the lower sealing block (22) is at the lowest point and a pair of upper sealing blocks (23) are in contact with the lower part of the lower sealing block (22), two rectangular ventilation holes are formed between the upper part of the lower sealing block (22) and the horizontal part of the clamp mounting groove; when the blower base (25) is at the highest point, the air nozzles (250) correspond one-to-one with the ventilation holes and the air nozzles (250) face the ventilation holes.

2. The CNC gantry milling machine that is easy to clean according to claim 1, characterized in that: The vertical lifting groove (210) includes a lower rectangular groove-shaped lower sliding groove (2101), a middle rectangular groove-shaped middle sliding groove (2100), and an upper rectangular groove-shaped upper sliding groove (2102); both ends of the middle sliding groove (2100) and the upper sliding groove (2102) parallel to the moving direction of the workbench (20) are open; the lower part of the lower closing block (22) is vertically slidably arranged in the lower sliding groove (2101); a pair of the upper closing blocks (23) are vertically slidably arranged in the middle sliding groove (2100); the width of the middle sliding groove (2100) in the direction perpendicular to the moving direction of the workbench (20) is greater than the width of the lower sliding groove (2101) in the direction perpendicular to the moving direction of the workbench (20); when the pair of upper closing blocks (23) are at the lowermost end, the pair of upper closing blocks (23) abut against the lower side wall of the middle sliding groove (2100).

3. The CNC gantry milling machine that is easy to clean according to claim 1, characterized in that: The upper end surface of the horizontal part of the waste discharging rack (24) is formed into a V-shaped discharging groove (240); the lower end sharp corner of the discharging groove (240) is provided with a rounded corner.

4. A CNC gantry milling machine that is easy to clean according to claim 3, characterized in that: A cleaning rack (70) is detachably and slidably connected between a pair of vertical parts of the waste discharging rack (24) parallel to the moving direction of the workbench (20); the moving direction of the cleaning rack (70) is parallel to the moving direction of the workbench (20); the cleaning rack (70) includes an upper cleaning seat (71), a lower cleaning plate (72) vertically movably arranged on the lower end surface of the upper cleaning seat (71), and a vertical adjusting member for adjusting the vertical position of the lower cleaning plate (72); the length direction of the lower cleaning plate (72) is perpendicular to the moving direction of the workbench (20), and a plurality of bristles (73) are arranged on its lower end surface.

5. A CNC gantry milling machine that is easy to clean according to claim 4, characterized in that: Cleaning components (77) are respectively arranged at both ends of the lower cleaning plate (72) along its length direction; the pair of cleaning components (77) are located on both sides of the workbench body (21) and face the corresponding discharging groove (240); the cleaning components (77) clean the waste in the corresponding discharging groove (240) as the cleaning rack (70) moves.

6. A CNC gantry milling machine that is easy to clean according to claim 5, characterized in that: A waste discharging port (2400) is formed in the middle of the waste discharging rack (24) near the feeding end; the waste discharging port (2400) is communicated with the discharging groove (240); a closing plate (241) is detachably connected in the waste discharging port (2400).

7. A CNC gantry milling machine that is easy to clean according to claim 4, characterized in that: The upper cleaning seat (71) includes an upper cleaning cross plate (711) and a pair of "U"-shaped upper cleaning brackets (712) with openings facing downwards formed at both ends of the upper cleaning cross plate (711) in the length direction; the length direction of the upper cleaning cross plate (711) is perpendicular to the moving direction of the workbench body (21); the upper cleaning brackets (712) are sleeved on the upper ends of the corresponding vertical parts of the waste discharging rack (24) from top to bottom.

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