A laser cladding equipment for CNC tool preparation

Abstract

The present invention belongs to the technical field of CNC tool preparation, and in particular, is a laser cladding device for CNC tool preparation, comprising a device box, wherein a servo controller and a system controller are respectively arranged inside the device box, and a plurality of the servo controllers are electrically connected to the system controller via cables. The laser cladding device for CNC tool preparation realizes rapid melting and forming of metal ceramic materials and automatic powder laying in the process of preparing metal ceramic materials for CNC tools by setting a laser cladding three-axis moving mechanism and a double-station powder laying mechanism, and realizes the preparation of CNC tools with complex shapes by laser melting, thereby solving the problem that the existing ceramic materials are limited by the cold pressing process, resulting in large porosity, poor mechanical properties, and poor durability, and cannot produce CNC tools with complex shapes.

Description

Technical Field

[0001] The invention relates to the technical field of CNC tool preparation, and in particular to laser cladding equipment for CNC tool preparation. Background Art

[0002] CNC tools are tools used for cutting in mechanical manufacturing, also known as cutting tools. In a broad sense, cutting tools include both cutting tools and grinding tools; at the same time, "CNC tools" include not only cutting blades, but also accessories such as tool rods and tool handles.

[0003] Existing CNC tools are usually formed by cold pressing. During the production process, due to the limitations of the cold pressing process, the resulting ceramic material has large porosity, poor mechanical properties, and is not durable. In addition, when using cold pressing to prepare CNC tools, due to the limitations of the die-casting mold, it is impossible to produce CNC tools with complex shapes. Therefore, a laser cladding equipment for preparing CNC tools is needed. Summary of the invention

[0004] Based on the technical problems that the existing cold pressing process is limited, resulting in large porosity, poor mechanical properties, poor durability of the prepared ceramic material, and inability to produce CNC tools with complex shapes, the present invention proposes a laser cladding device for preparing CNC tools.

[0005] The present invention provides a laser cladding device for preparing a numerically controlled tool, comprising a device box, wherein a servo controller and a system controller are respectively arranged inside the device box, and a plurality of the servo controllers are electrically connected to the system controller through cables;

[0006] The upper surface of the equipment box is respectively provided with a laser cladding three-axis moving mechanism and a double-station powder laying mechanism;

[0007] Among them, the three-axis moving mechanism of laser cladding is used to drive the laser to move in the X, Y and Z axis directions to melt and print CNC tools on metal ceramic materials;

[0008] Among them, the dual-station powder laying mechanism is used to automatically lay powder on two metal powder beds, thereby improving the efficiency of laser melting to prepare CNC tools.

[0009] Preferably, the laser cladding three-axis moving mechanism comprises a moving support frame, the two supporting parts of the moving support frame are slidably connected to the upper surface of the equipment box, the upper surface of the equipment box is provided with two limiting guide slots corresponding to the two supporting parts of the moving support frame, and the inner top wall of the equipment box is fixedly connected with two limiting support frames corresponding to the limiting guide slots;

[0010] A guide slider and a movable support wheel are respectively fixedly mounted on the lower surfaces of the two support parts of the movable support frame, and a plurality of the guide sliders and movable support wheels are evenly distributed on the lower surfaces of the two support parts of the movable support frame;

[0011] The surface of the guide sliding block is adapted to be slidably connected with the inner wall of the position-limiting guide sliding groove, and the surface of the movable support wheel is slidably connected with the inner bottom wall of the position-limiting support frame.

[0012] Preferably, a driving groove connected to the inner wall of the equipment box is formed on the upper surface of the equipment box, a driving installation frame is fixedly connected to the inner top wall of the equipment box, a linear screw module is fixedly installed on the inner wall of the driving installation frame, the linear screw module includes a linear moving component and a module driving motor, and the module driving motor is electrically connected to the servo controller through a cable;

[0013] The upper surface of the linear moving component extends to the upper surface of the equipment box, the inner wall of the movable support frame is fixedly connected with a driving frame, the surface of the driving frame is Y-shaped, and the bottom of the driving frame is fixedly connected to the upper surface of the linear moving component.

[0014] Preferably, a guide rail frame is fixedly mounted on the upper surface of the movable support frame, the inner wall of the guide rail frame is rotatably connected to a first driving screw through a bearing, the surface of the first driving screw is threadedly connected to a transverse moving slider, and the surface of the transverse moving slider is adapted to be slidably connected to the inner wall of the guide rail frame;

[0015] A driven synchronous pulley is provided on one end surface of the guide rail frame, one end of the first driving screw penetrates the guide rail frame and is fixedly connected to the surface of the driven synchronous pulley, a transverse driving motor is fixedly installed on the upper surface of the movable support frame, the transverse driving motor is electrically connected to the servo controller through a cable, the output shaft of the transverse driving motor is fixedly connected to a driving synchronous pulley, and the driving synchronous pulley is transmission-connected to the driven synchronous pulley through a synchronous belt.

[0016] Preferably, the upper surface of the transverse movable slider is fixedly connected to a vertical support frame, the surface of the vertical support frame is fixedly connected to an auxiliary guide rail, the two auxiliary guide rails are symmetrically distributed with the axis of the vertical support frame as the center, and the surfaces of the two auxiliary guide rails are slidably connected to auxiliary installation sliders;

[0017] A vertical driving frame is fixedly connected to the surface of the vertical support frame, a vertical guide rail is fixedly connected to the inner wall of the vertical driving frame, and two vertical guide rails are symmetrically distributed with the axis of the vertical driving frame as the center.

[0018] Preferably, the inner wall of the vertical drive frame is rotatably connected to a second drive screw via a bearing, the surface of the second drive screw is threadedly connected to a vertical drive slider, and the surface of the vertical drive slider is slidably connected to the surface of the vertical guide rail;

[0019] A vertical drive motor is fixedly installed on the top of the vertical drive frame, the vertical drive motor is electrically connected to the servo controller through a cable, and the output shaft of the vertical drive motor is fixedly connected to one end of the second drive screw through a coupling;

[0020] The surfaces of the two auxiliary installation sliders and the vertical driving slider are both fixedly connected with a mounting seat, and the surface of the mounting seat is fixedly mounted with a laser for melting metal ceramic powder.

[0021] Preferably, the double-station powder laying mechanism comprises a sealed guide slide, the two sealed guide slides are symmetrically distributed with the axis of the equipment box as the center, and the surface of the sealed guide slide is trapezoidal;

[0022] The ends of the two sealing guide slides away from the movable support frame are both sleeved and installed with a metal powder bed, and the two side surfaces of the sealing guide slides are slidably connected with guide slides, and the surfaces of the guide slides contacting the sealing guide slides are trapezoidal in shape and adapted to the surfaces of the sealing guide slides;

[0023] A metal powder distributor is fixedly mounted on the upper surface of the guide slide plate, and a lower surface of the metal powder distributor is slidably connected to the upper surface of the sealing guide slide table.

[0024] Preferably, a support seat is fixedly connected to the upper surface of the linear screw module, a support column is rotatably connected to the upper surface of the support seat via a bearing, and a transmission gear is fixedly sleeved on the surface of the support column;

[0025] The surfaces of the two guide slides close to the transmission gear are fixedly connected with driving racks, and the surfaces of the two driving racks are meshed with the surface of the transmission gear.

[0026] Preferably, a linear guide is fixedly mounted on the upper surface of the equipment box, a linear drive slider is slidably connected to the surface of the linear guide, a connecting plate with an L-shaped surface is fixedly connected to the surface of the linear drive slider, and a surface of the connecting plate is fixedly connected to a surface of one of the guide slides;

[0027] A distributor driving cylinder is fixedly mounted on the upper surface of the equipment box, and the distributor driving cylinder is electrically connected to the servo controller via a solenoid valve. The distributor driving cylinder includes a driving gas rod, and one end of the driving gas rod is fixedly connected to the surface of the connecting plate.

[0028] The beneficial effects of the present invention are:

[0029] 1. By setting up a three-axis moving mechanism for laser cladding and a double-station powder laying mechanism, rapid melting and forming of metal ceramic materials and automated powder laying are achieved in the process of preparing metal ceramic materials for CNC tools, and CNC tools with complex shapes can be prepared by laser melting, thus solving the problem that the existing ceramic materials are limited by the cold pressing process, resulting in large porosity, poor mechanical properties, and poor durability, and cannot produce CNC tools with complex shapes.

[0030] 2. By setting up laser cladding equipment, in the process of preparing metal ceramic materials for CNC tools, laser cladding technology reduces material waste, reduces energy consumption, and has the effect of improving material performance compared to traditional processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a laser cladding device for preparing a CNC tool proposed by the present invention;

[0032] Figure 2 A three-dimensional diagram of the structure of a movable support frame of a laser cladding device for preparing a numerically controlled tool proposed by the present invention;

[0033] Figure 3 A three-dimensional diagram of the structure of a linear screw module of a laser cladding device for preparing a CNC tool proposed by the present invention;

[0034] Figure 4 A three-dimensional diagram of the laser structure of a laser cladding device for preparing a numerically controlled tool proposed by the present invention;

[0035] Figure 5 A three-dimensional diagram of the guide rail frame structure of a laser cladding device for preparing a numerically controlled tool proposed by the present invention;

[0036] Figure 6 A three-dimensional diagram of the structure of a vertical drive motor of a laser cladding device for preparing a numerically controlled tool proposed by the present invention;

[0037] Figure 7 A three-dimensional diagram of the mounting seat structure of a laser cladding device for preparing a numerically controlled tool proposed by the present invention;

[0038] Figure 8 A three-dimensional diagram of the vertical support frame structure of a laser cladding device for preparing a CNC tool proposed by the present invention;

[0039] Fig. 9 This is a three-dimensional diagram of the sealed guide slide structure of a laser cladding device for preparing CNC tools proposed by the present invention.

[0040] In the figure: 1, equipment box; 2, mobile support frame; 201, limit guide slide; 202, limit support frame; 203, guide slider; 204, mobile support wheel; 205, drive slot; 206, drive installation frame; 207, linear screw module; 2071, linear moving component; 2072, module drive motor; 208, drive frame; 209, guide rail frame; 210, first drive screw; 211, horizontal moving slider; 212, driven synchronous pulley; 213, horizontal drive motor; 214, active synchronous pulley; 215, vertical support frame; 216, auxiliary guide rail; 2 17. Auxiliary installation slider; 218. Vertical drive frame; 219. Vertical guide rail; 220. Second drive screw; 221. Vertical drive slider; 222. Vertical drive motor; 223. Mounting seat; 224. Laser; 3. Sealed guide slide; 301. Metal powder bed; 302. Guide slide; 303. Metal powder distributor; 304. Support seat; 305. Support column; 306. Transmission gear; 307. Drive rack; 308. Linear guide rail; 309. Linear drive slider; 310. Connecting plate; 311. Distributor drive cylinder; 312. Drive gas rod. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] Reference Figure 1-Figure 9 A laser cladding device for preparing CNC tools includes a device box 1, wherein a servo controller and a system controller are respectively arranged inside the device box 1, and multiple servo controllers are electrically connected to the system controller through cables.

[0043] When in use, the servo controller is used to control the motor in the laser cladding equipment to work, and the system controller is used to send control information to the servo controller.

[0044] The upper surface of the equipment box 1 is respectively provided with a laser cladding three-axis moving mechanism and a double-station powder laying mechanism.

[0045] The three-axis moving mechanism of laser cladding is used to drive the laser 224 to move in the X, Y and Z axis directions to melt and print CNC tools on metal ceramic materials.

[0046] The three-axis moving mechanism of laser cladding includes a moving support frame 2, and the two supporting parts of the moving support frame 2 are slidably connected to the upper surface of the equipment box 1. The upper surface of the equipment box 1 is provided with two limiting guide grooves 201 corresponding to the two supporting parts of the moving support frame 2, and the inner top wall of the equipment box 1 is fixedly connected with two limiting support frames 202 corresponding to the limiting guide grooves 201.

[0047] The lower surfaces of the two supporting parts of the movable support frame 2 are respectively fixedly mounted with guide sliders 203 and movable support wheels 204 . A plurality of guide sliders 203 and movable support wheels 204 are evenly distributed on the lower surfaces of the two supporting parts of the movable support frame 2 .

[0048] The surface of the guide sliding block 203 is adapted to be slidably connected with the inner wall of the position-limiting guide sliding groove 201 , and the surface of the movable support wheel 204 is slidably connected with the inner bottom wall of the position-limiting support frame 202 .

[0049] When in use, the movable support frame 2 is limited in horizontal movement by the limiting guide slot 201 and the guide slider 203, and the friction of the movable support frame 2 is reduced by the cooperation between the movable support wheel 204 and the limiting support frame 202, thereby achieving a better movement effect.

[0050] A driving groove 205 connected to the inner wall of the device case 1 is provided on the upper surface of the device case 1, and a driving installation frame 206 is fixedly connected to the inner top wall of the device case 1. A linear screw module 207 is fixedly installed on the inner wall of the driving installation frame 206. The linear screw module 207 includes a linear moving component 2071 and a module driving motor 2072. The module driving motor 2072 is electrically connected to the servo controller via a cable.

[0051] When in use, the linear screw module 207 is automatically controlled to work by a servo controller.

[0052] The upper surface of the linear moving component 2071 extends to the upper surface of the equipment box 1, and the inner wall of the movable support frame 2 is fixedly connected with the driving frame 208. The surface of the driving frame 208 is Y-shaped, and the bottom of the driving frame 208 is fixedly connected to the upper surface of the linear moving component 2071.

[0053] Furthermore, by adopting the Y-shaped driving frame 208, when the movable support frame 2 moves longitudinally, the double-station powder laying mechanism can be avoided, thereby achieving a better effect of laser melting to prepare CNC tools.

[0054] When in use, the servo controller automatically controls the forward and reverse movement of the module drive motor 2072, and the module drive motor 2072 drives the screw inside the linear screw module 207 to rotate, drives the linear moving component 2071 to move linearly, and drives the drive frame 208 and the mobile support frame 2 to move longitudinally on the upper surface of the equipment box 1.

[0055] A guide rail frame 209 is fixedly installed on the upper surface of the mobile support frame 2, and the inner wall of the guide rail frame 209 is rotatably connected to a first driving screw 210 through a bearing. The surface of the first driving screw 210 is threadedly connected to a transverse moving slider 211, and the surface of the transverse moving slider 211 is adapted to the sliding connection with the inner wall of the guide rail frame 209.

[0056] A driven synchronous pulley 212 is provided on one end surface of the guide rail frame 209, one end of the first driving screw 210 passes through the guide rail frame 209 and is fixedly connected to the surface of the driven synchronous pulley 212, a transverse driving motor 213 is fixedly installed on the upper surface of the movable support frame 2, the transverse driving motor 213 is electrically connected to the servo controller through a cable, the output shaft of the transverse driving motor 213 is fixedly connected to the driving synchronous pulley 214, and the driving synchronous pulley 214 is transmission-connected to the driven synchronous pulley 212 through a synchronous belt.

[0057] Furthermore, a drag chain cable for providing electrical energy to electrical equipment on the mobile support frame 2 is longitudinally arranged on the upper surface of the equipment box 1 .

[0058] The upper surface of the transverse movable slider 211 is fixedly connected to a vertical support frame 215, and the surface of the vertical support frame 215 is fixedly connected to an auxiliary guide rail 216. The two auxiliary guide rails 216 are symmetrically distributed with the axis of the vertical support frame 215 as the center, and the surfaces of the two auxiliary guide rails 216 are slidably connected to auxiliary installation sliders 217.

[0059] A vertical driving frame 218 is fixedly connected to the surface of the vertical support frame 215 , and a vertical guide rail 219 is fixedly connected to the inner wall of the vertical driving frame 218 . The two vertical guide rails 219 are symmetrically distributed with the axis of the vertical driving frame 218 as the center.

[0060] The inner wall of the vertical driving frame 218 is rotatably connected to the second driving screw 220 via a bearing. The surface of the second driving screw 220 is threadedly connected to a vertical driving slider 221 . The surface of the vertical driving slider 221 is slidably connected to the surface of the vertical guide rail 219 .

[0061] A vertical drive motor 222 is fixedly installed on the top of the vertical drive frame 218 . The vertical drive motor 222 is electrically connected to the servo controller via a cable. The output shaft of the vertical drive motor 222 is fixedly connected to one end of the second drive screw 220 via a coupling.

[0062] When in use, the vertical drive motor 222 is automatically controlled by the servo controller to work, and the vertical drive motor 222 drives the second drive screw 220 to rotate, driving the vertical drive slider 221 to move along the surface of the vertical guide rail 219 .

[0063] Furthermore, a transverse drag chain cable bracket is fixedly installed on the surface of the movable support frame 2, and a transverse drag chain cable for providing power to the vertical drive motor 222 and the laser 224 is arranged on the upper surface of the transverse drag chain cable bracket.

[0064] A mounting seat 223 is fixedly connected to the surfaces of the two auxiliary mounting slide blocks 217 and the vertical driving slide block 221 , and a laser 224 for melting metal ceramic powder is fixedly mounted on the surface of the mounting seat 223 .

[0065] Furthermore, the surfaces of the linear screw module 207, the movable support frame 2 and the vertical support frame 215 are all installed with grating scales electrically connected to the system controller, and the reading heads of the three grating scales are fixedly connected to the surfaces of the linear moving component 2071, the transverse moving slider 211 and the mounting seat 223 respectively, so as to realize precise positioning of the laser 224, thereby achieving better control of the laser 224 to perform laser melting on metal ceramic materials to prepare CNC tools.

[0066] The dual-station powder laying mechanism is used to automatically lay powder on two metal powder beds 301, thereby improving the efficiency of laser melting in preparing CNC tools.

[0067] The double-station powder laying mechanism includes a sealed guide slide 3. The two sealed guide slides 3 are symmetrically distributed with the axis of the equipment box 1 as the center, and the surface of the sealed guide slide 3 is trapezoidal.

[0068] A metal powder bed 301 is installed on one end of the two sealing guide slides 3 away from the movable support frame 2, and the two side surfaces of the sealing guide slides 3 are slidably connected with guide slides 302. The surface of the guide slide 302 in contact with the sealing guide slide 3 is trapezoidal in shape and matches the surface of the sealing guide slide 3.

[0069] A metal powder distributor 303 is fixedly mounted on the upper surface of the guide slide plate 302 , and a lower surface of the metal powder distributor 303 is slidably connected to the upper surface of the sealing guide slide table 3 .

[0070] When in use, the metal powder distributor 303 is used to distribute metal ceramic material inside the metal powder bed 301 , and the metal powder distributor 303 is sealed by the sealing guide slide 3 to prevent leakage of metal ceramic material during the movement of the metal powder distributor 303 .

[0071] The upper surface of the linear screw module 207 is fixedly connected to a support seat 304 , the upper surface of the support seat 304 is rotatably connected to a support column 305 via a bearing, and a transmission gear 306 is fixedly sleeved on the surface of the support column 305 .

[0072] The surfaces of the two guide slides 302 close to the transmission gear 306 are fixedly connected with driving racks 307 , and the surfaces of the two driving racks 307 are meshed with the surface of the transmission gear 306 .

[0073] A linear guide rail 308 is fixedly installed on the upper surface of the equipment box 1, and a linear drive slider 309 is slidably connected to the surface of the linear guide rail 308. A connecting plate 310 with an L-shaped surface is fixedly connected to the surface of the linear drive slider 309, and the surface of the connecting plate 310 is fixedly connected to the surface of one of the guide slides 302.

[0074] A distributor driving cylinder 311 is fixedly installed on the upper surface of the equipment box 1. The distributor driving cylinder 311 is electrically connected to the servo controller through a solenoid valve. The distributor driving cylinder 311 includes a driving gas rod 312, one end of which is fixedly connected to the surface of the connecting plate 310.

[0075] When in use, the servo controller automatically controls the on and off of the solenoid valve on the distributor drive cylinder 311, controls the drive air rod 312 to extend from or retract into the distributor drive cylinder 311, drives the connecting plate 310 and the linear drive slider 309 to move along the surface of the linear guide rail 308, drives the guide slide 302 and one of the metal powder distributors 303 to move along the surface of the sealed guide slide 3, drives one of the drive racks 307 to move, the drive gear movement drives the transmission gear 306 to rotate, the transmission gear 306 drives the other drive rack 307 to move in the opposite direction, and drives the other metal powder distributor 303 to move in the opposite direction.

[0076] The working principle of the laser cladding equipment is: the laser cladding three-axis moving mechanism drives the laser 224 to move in the X, Y and Z axis directions, and laser melts the metal ceramic material in the metal powder bed 301 to prepare a CNC tool.

[0077] Specifically, the servo controller automatically controls the forward and reverse movement of the module drive motor 2072, and the module drive motor 2072 drives the screw inside the linear screw module 207 to rotate, drives the linear moving component 2071 to move linearly, and drives the drive frame 208, the movable support frame 2 and the laser 224 to move longitudinally on the upper surface of the equipment box 1.

[0078] The lateral drive motor 213 is controlled by a servo controller to work, the output shaft of the lateral drive motor 213 drives the active synchronous pulley 214 to rotate, the active synchronous pulley 214 drives the driven synchronous pulley 212 to rotate through the synchronous belt, the driven synchronous pulley 212 drives the first drive screw 210 to rotate, the first drive screw 210 drives the transverse moving slider 211 to perform transverse linear motion in the guide frame 209 along the inner wall of the guide frame 209, and drives the vertical support frame 215 and the laser 224 to perform transverse motion.

[0079] The vertical drive motor 222 is automatically controlled by the servo controller to rotate, and the second drive screw 220 is driven to rotate by the vertical drive motor 222, thereby driving the vertical drive slider 221 to move along the surface of the vertical guide rail 219, and driving the auxiliary installation slider 217, the vertical drive slider 221, the mounting seat 223 and the laser 224 to move vertically.

[0080] Metal ceramic material is laid on two metal powder beds 301 on the equipment box 1 through a double-station powder laying mechanism. When the three-axis moving mechanism drives the laser 224 to perform laser melting on one of the metal powder beds 301, the metal powder distributor 303 on the other metal powder bed 301 distributes metal ceramic powder to it. After the distribution is completed, the metal powder distributor 303 is bonded to the metal powder bed 301, and also has the effect of keeping the distributed metal ceramic powder warm.

[0081] After the laser 224 performs laser melting operation on the metal ceramic material inside one of the metal powder beds 301, it moves to the metal powder bed 301 that is bonded to the metal powder distributor 303. At the same time, the servo controller automatically controls the on and off of the solenoid valve on the distributor drive cylinder 311, controls the drive air rod 312 to extend from or retract into the distributor drive cylinder 311, drives the connecting plate 310 and the linear drive slider 309 to move along the surface of the linear guide rail 308, drives the guide slide 302 and the guide slide 309 to move along the surface of the linear guide rail 308, and drives the guide slide 302 and the guide slide 309 to move along the surface of the linear guide rail 308. A metal powder feeder 303 moves along the surface of the sealed guide slide 3, driving one of the drive racks 307 to move, the drive gear movement drives the transmission gear 306 to rotate, the transmission gear 306 drives the other drive rack 307 to move in the opposite direction, driving the other metal powder feeder 303 to move in the opposite direction, thereby moving the metal powder feeder 303 on the metal powder bed 301 where the feeding is completed and separating from the metal powder bed 301, and the other metal powder feeder 303 moves to the metal powder bed 301 after laser melting for feeding.

[0082] This reduces the time that the laser 224 needs to wait for the internal bed plate of the metal powder bed 301 to move downward for adjustment and powder feeding during the CNC tool manufacturing process, thereby improving the efficiency of using the laser 224 for CNC tool melting and forming. After the CNC tool in a metal powder bed 301 is formed, by controlling the two metal powder feeders 303 to move to the middle position of the sealed guide slide 3, the laser 224 can be moved to the top of one metal powder bed 301 for laser melting while the CNC tool formed in another metal powder bed 301 is taken out. After taking it out, the metal powder inside the metal powder bed 301 is recovered and the bed plate of the metal powder bed 301 is reset, thereby further improving the efficiency of laser melting and forming of the CNC tool.

[0083] By setting up laser cladding equipment, in the process of preparing metal ceramic materials for CNC tools, laser cladding technology reduces material waste, reduces energy consumption, and has the effect of improving material performance compared to traditional processes.

[0084] By setting up a three-axis moving mechanism for laser cladding and a double-station powder laying mechanism, rapid melting and forming of metal ceramic materials and automatic powder laying are achieved in the process of preparing metal ceramic materials for CNC tools, and CNC tools with complex shapes can be prepared by laser melting, thus solving the problem that the existing ceramic materials are limited by the cold pressing process, resulting in large porosity, poor mechanical properties, low durability, and inability to produce CNC tools with complex shapes.

[0085] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser cladding device for preparing a numerically controlled tool, comprising a device housing (1), characterized in that: A servo controller and a system controller are respectively arranged inside the equipment box (1), and a plurality of the servo controllers are electrically connected to the system controller via cables; The upper surface of the equipment box (1) is provided with a laser cladding three-axis moving mechanism and a double-station powder laying mechanism; The three-axis moving mechanism of laser cladding is used to drive the laser (224) to move in the X, Y and Z axis directions to melt and print the CNC tool on the metal ceramic material; The laser cladding three-axis moving mechanism comprises a moving support frame (2), two supporting parts of the moving support frame (2) are slidably connected to the upper surface of the device box (1), the upper surface of the device box (1) is provided with two limiting guide sliding grooves (201) corresponding to the two supporting parts of the moving support frame (2), and the inner top wall of the device box (1) is fixedly connected with two limiting support frames (202) corresponding to the limiting guide sliding grooves (201); A guide slider (203) and a movable support wheel (204) are respectively fixedly mounted on the lower surfaces of the two support parts of the movable support frame (2), and a plurality of the guide sliders (203) and the movable support wheels (204) are evenly distributed on the lower surfaces of the two support parts of the movable support frame (2); The surface of the guide slider (203) is slidably connected to the inner wall of the position-limiting guide slot (201), the surface of the movable support wheel (204) is slidably connected to the inner bottom wall of the position-limiting support frame (202), the upper surface of the device case (1) is provided with a drive slot (205) connected to the inner wall of the device case (1), the inner top wall of the device case (1) is fixedly connected to a drive installation frame (206), the inner wall of the drive installation frame (206) is fixedly installed with a linear screw module (207), the linear screw module (207) comprises a linear moving component (2071) and a module drive motor (2072), and the module drive motor (2072) is electrically connected to the servo controller via a cable; The upper surface of the linear moving component (2071) extends to the upper surface of the equipment box (1); the inner wall of the movable support frame (2) is fixedly connected to a driving frame (208); the surface of the driving frame (208) is in a Y shape; and the bottom of the driving frame (208) is fixedly connected to the upper surface of the linear moving component (2071); The double-station powder laying mechanism is used to automatically lay powder on two metal powder beds (301), thereby improving the efficiency of laser melting to prepare CNC tools; The double-station powder laying mechanism comprises a sealed guide slide (3), wherein the two sealed guide slides (3) are symmetrically distributed with the axis of the equipment housing (1) as the center, and the surface of the sealed guide slide (3) is in a trapezoidal shape; The ends of the two sealing guide slides (3) away from the movable support frame (2) are both sleeved and mounted with a metal powder bed (301), and the surfaces of both sides of the sealing guide slides (3) are slidably connected with guide slides (302), and the surfaces of the guide slides (302) in contact with the sealing guide slides (3) are in a trapezoidal shape and are adapted to the surfaces of the sealing guide slides (3); A metal powder distributor (303) is fixedly mounted on the upper surface of the guide slide plate (302); the lower surface of the metal powder distributor (303) is slidably connected to the upper surface of the sealing guide slide (3); the upper surface of the linear screw module (207) is fixedly connected to a support seat (304); the upper surface of the support seat (304) is rotatably connected to a support column (305) via a bearing; and a transmission gear (306) is fixedly sleeved on the surface of the support column (305); The surfaces of the two guide slide plates (302) close to the transmission gear (306) are fixedly connected with drive racks (307), and the surfaces of the two drive racks (307) are meshed with the surface of the transmission gear (306); A linear guide rail (308) is fixedly mounted on the upper surface of the device box (1); a linear drive slider (309) is slidably connected to the surface of the linear guide rail (308); a connecting plate (310) having an L-shaped surface is fixedly connected to the surface of the linear drive slider (309); and a surface of the connecting plate (310) is fixedly connected to a surface of one of the guide slides (302); A distributor driving cylinder (311) is fixedly mounted on the upper surface of the equipment box (1); the distributor driving cylinder (311) is electrically connected to the servo controller via a solenoid valve; the distributor driving cylinder (311) comprises a driving gas rod (312); one end of the driving gas rod (312) is fixedly connected to the surface of the connecting plate (310).

2. The laser cladding equipment for preparing CNC tools according to claim 1, characterized in that: A guide rail frame (209) is fixedly mounted on the upper surface of the movable support frame (2); a first driving screw rod (210) is rotatably connected to the inner wall of the guide rail frame (209) via a bearing; a transverse moving slider (211) is threadedly connected to the surface of the first driving screw rod (210); and a surface of the transverse moving slider (211) is adapted to be slidably connected to the inner wall of the guide rail frame (209); A driven synchronous pulley (212) is provided on one end surface of the guide rail frame (209); one end of the first driving screw rod (210) passes through the guide rail frame (209) and is fixedly connected to the surface of the driven synchronous pulley (212); a transverse driving motor (213) is fixedly installed on the upper surface of the movable support frame (2); the transverse driving motor (213) is electrically connected to the servo controller via a cable; an output shaft of the transverse driving motor (213) is fixedly connected to a driving synchronous pulley (214); and the driving synchronous pulley (214) is transmission-connected to the driven synchronous pulley (212) via a synchronous belt.

3. The laser cladding equipment for preparing CNC tools according to claim 2, characterized in that: The upper surface of the transverse movable slider (211) is fixedly connected to a vertical support frame (215), the surface of the vertical support frame (215) is fixedly connected to an auxiliary guide rail (216), the two auxiliary guide rails (216) are symmetrically distributed with the axis of the vertical support frame (215) as the center, and the surfaces of the two auxiliary guide rails (216) are both slidably connected to auxiliary installation sliders (217); A vertical driving frame (218) is fixedly connected to the surface of the vertical support frame (215), and a vertical guide rail (219) is fixedly connected to the inner wall of the vertical driving frame (218), wherein the two vertical guide rails (219) are symmetrically distributed with the axis of the vertical driving frame (218) as the center.

4. The laser cladding equipment for preparing CNC tools according to claim 3 is characterized in that: The inner wall of the vertical drive frame (218) is rotatably connected to a second drive screw (220) via a bearing, the surface of the second drive screw (220) is threadedly connected to a vertical drive slider (221), and the surface of the vertical drive slider (221) is slidably connected to the surface of the vertical guide rail (219); A vertical drive motor (222) is fixedly mounted on the top of the vertical drive frame (218); the vertical drive motor (222) is electrically connected to the servo controller via a cable; and an output shaft of the vertical drive motor (222) is fixedly connected to one end of the second drive screw (220) via a coupling; A mounting seat (223) is fixedly connected to the surfaces of the two auxiliary mounting slide blocks (217) and the vertical driving slide block (221), and a laser (224) for melting metal ceramic powder is fixedly mounted on the surface of the mounting seat (223).

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