Numerical control lathe with tool collision protection structure

Abstract

The invention relates to the technical field of numerical control lathes, and particularly discloses a numerical control lathe with a tool collision protection structure. According to the numerical control lathe with the tool collision protection structure, the purpose of preventing the lathe tool from being collided is achieved. An operator needs to carry out tool setting operation before turning operation, during tool setting, a part corresponding to the anti-collision tool device is manually moved, and the position of the part corresponding to the anti-collision tool device is fixed, so that the moving range of the turning tool from the chuck is limited, and when the turning tool is too close to the chuck, the tool setting operation is carried out. The anti-collision tool device gives an alarm to prompt that the tool is about to collide or the emergency stop switch is directly triggered, so that the occurrence of tool collision is prevented, the turning tool can be kept in a normal working state during normal working, and when the turning tool accidentally exceeds a limited range, corresponding parts on the anti-collision tool device are triggered to give an alarm to remind a worker that the tool is about to collide. And therefore, the condition of knife collision is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of numerically controlled lathes, and particularly to a numerically controlled lathe with a tool collision protection structure. Background Art

[0002] Numerically controlled lathes are one of the numerically controlled machine tools that are widely used at present. It is mainly used for the cutting processing of the inner and outer cylindrical surfaces of shaft parts or disk parts, the inner and outer conical surfaces with any cone angle, the complex rotating inner and outer curved surfaces, and cylindrical and conical threads, etc., and can perform grooving, drilling, reaming, boring and other operations. The numerically controlled machine tool processes the machined parts automatically according to the pre-programmed processing program. In the use, teaching or metalworking practice of existing numerically controlled lathes, it often occurs that due to incorrect input of parameters or programs, the tool rest overruns and collides with the three-jaw chuck rotating at high speed. Since the spindle speed often reaches 3000 r / min, when the three-jaw chuck collides with the tool rest at such a high speed, the chuck will break, the tool body and the carbide insert will fly, and even the glass window on the protective door will be penetrated, causing major safety accidents. In teaching or metalworking practice, trainees often forget to close the protective door. In addition, due to the increase of the depth of cut and the decrease of the feed rate of the tool rest, continuous cutting chips with good strength and toughness will be generated. These cutting chips will wind around the spindle and form clusters under the rotation of the three-jaw chuck, and finally collide with the tool changer, and at the same time seriously damage the surface roughness of the workpiece and even damage the dimensions. Therefore, a lathe for practical teaching that can solve the above problems is needed.

[0003] The current lathes cannot clean the iron chips specifically, and there is no warning measure for the distance between the tool and the chuck, so tool collision is likely to occur. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A numerically controlled lathe with a tool collision protection structure. It includes a lathe main body, a chuck is rotatably connected to the side of the lathe main body, a protection device is fixedly connected to the top of the lathe main body, a sliding bracket is fixedly connected to the side of the lathe main body, an anti-collision tool device is fixedly connected to the side of the lathe main body, the protection device is arranged above the chuck, the anti-collision tool device is arranged above the sliding bracket, and the sliding bracket is arranged at the bottom of the chuck;

[0005] The anti-collision tool device includes a tool base frame. A first chute is formed at the top of the tool base frame. A driving lead screw penetrates and is threadedly connected to the side surface of the tool base frame. The top of the tool base frame is slidably connected with a tool fixing frame through the first chute. A chute adapted to the first chute is fixedly connected to the bottom of the tool fixing frame. A horizontal lead screw penetrates and is threadedly connected to the side surface of the tool fixing frame. One end of the horizontal lead screw away from the tool fixing frame is fixedly connected with a first motor. The bottom of the first motor is fixedly connected to the top of the tool base frame. An angle adjustment assembly is fixedly connected to the top of the horizontal lead screw. A height adjustment assembly is rotatably connected to the top of the angle adjustment assembly. An anti-collision tool mechanism is slidably connected to the top of the height adjustment assembly. The side surface of the driving lead screw is rotatably connected to the side surface of the lathe main body. The bottom of the tool base frame is slidably connected to the top of the sliding bracket.

[0006] Preferably, the angle adjustment assembly includes an adjustment base. An adjustment column is fixedly connected to the top of the adjustment base. A limit ring is fixedly connected to the top of the adjustment column. A rotating sleeve is sleeved and slidably connected to the side surface of the adjustment column. A spring is fixedly connected to the bottom of the limit ring. The spring is arranged between the bottom of the limit ring and the inner bottom of the rotating sleeve. Limit strips are fixedly connected to the bottom of the rotating sleeve and the top of the adjustment base respectively. The bottom of the adjustment base is fixedly connected to the top of the tool fixing frame. The top of the rotating sleeve is fixedly connected to the bottom of the height adjustment assembly. The movement of the angle adjustment assembly drives the height adjustment assembly to move. The movement of the height adjustment assembly drives the anti-collision tool mechanism to move. The anti-collision tool mechanism is fixed before turning. The position is fixed according to the limit feed amount of the turning tool, ensuring that the corresponding device of the anti-collision tool mechanism is stably triggered before the turning tool touches the chuck, thereby emitting a warning sound. The anti-collision tool mechanism is fixed to the top of the tool fixing frame through the height adjustment assembly and the angle adjustment assembly, so as to ensure that when the turning tool moves, the anti-collision tool mechanism moves synchronously according to the position of the turning tool, so as to ensure that the moving range of the turning tool is always within the safe range. The anti-collision function of the turning tool is realized, thus avoiding the phenomenon of tool collision when the turning tool exceeds the normal range.

[0007] Preferably, the height adjustment assembly includes an adjustment base plate. A top of the adjustment base plate is fixedly connected with an adjustment bracket. A side of the adjustment base plate is rotatably connected with a moving bracket through a rotating pin. An inner side surface of the moving bracket is rotatably connected with a moving plate through a rotating pin. A top of the moving plate penetrates and is threadedly connected with a threaded column. A top of the threaded column is fixedly connected with a handle turntable. A bottom of the threaded column is rotatably connected with a first slider. A top of the adjustment base plate is provided with a chute adapted to the first slider. A bottom of the adjustment base plate is fixedly connected with a top of a rotating sleeve. A top of the moving bracket is slidably connected with an anti-collision tool mechanism. Under the pressure of a limiting ring, the rotating sleeve is driven to descend. The descending of the rotating sleeve drives a limiting strip to engage, so that the rotating sleeve is fixed at a specified position after rotating, thereby ensuring that problems such as angle deviation are prevented during machining. The angle adjustment function of the anti-collision tool mechanism is realized, and the operation is simple, adapting to the anti-collision function of the turning tool under different turning conditions.

[0008] Preferably, the anti-collision tool mechanism includes an anti-collision tool bracket. One end of the anti-collision tool bracket penetrates and is threadedly connected with a fixing bolt. A bottom of the fixing bolt is fixedly connected with a fixing slider. A component away from the fixing bolt of the anti-collision tool bracket is fixedly connected with an anti-collision tool assembly. A side of the anti-collision tool bracket is fixedly connected with a warning device. A bottom of the moving bracket is provided with a chute adapted to the fixing slider. The fixing bolt is slidably connected with a top of the moving bracket through the fixing slider. The rising or falling of the moving plate drives the moving bracket to rise or fall, thereby adjusting the height of the anti-collision tool mechanism. During the height adjustment process, the handle turntable is connected with the moving plate through a thread, thereby avoiding sliding and offset after the height adjustment is completed, and thus ensuring that the anti-collision tool mechanism points to a specific position.

[0009] Preferably, the anti-collision tool component includes a fixed bottom plate. A spring rod penetrates and is slidably connected to the side of the fixed bottom plate. A moving plate is fixedly connected to the side of the spring rod. A tool collision detection column is fixedly connected to the side of the moving plate away from the fixed bottom plate. Contact electrodes are fixedly connected to the sides of both the fixed bottom plate and the moving plate. The side of the fixed bottom plate is fixedly connected to the side of the anti-collision tool support. When the tool collision detection column touches the side of the protection device, that is, when the turning tool approaches the limit movement position and a tool collision is about to occur, as the turning tool moves, it drives the tool collision detection column to move. When the tool collision detection column touches the side of the protection device, it drives the tool collision detection column to move under the power provided by the turning tool. The tool collision detection column drives the moving plate to move, and the moving plate drives the spring rod to move. The moving plate generates pressure on the spring rod when the turning tool continues to move forward. When the distance between the contact electrodes gradually decreases until they touch each other, the contact between the contact electrodes closes the circuit and transmits a signal to the warning device, thereby emitting a prompt sound indicating an impending tool collision to prompt the operator to take action to avoid a tool collision. Or the emergency stop switch is turned on through the closed circuit, and the turning tool is urgently stopped when it approaches the limit of tool collision to avoid a tool collision situation.

[0010] Preferably, the protection device includes a moving rod. A moving sleeve is sleeved and slidably connected to the side of the moving rod. A protection component is sleeved and rotatably connected to the side of the moving sleeve. A limiting plate is fixedly connected to the side of the moving sleeve. A fixing component is fixedly connected to the side of the moving sleeve. A fan is fixedly connected to the side of the protection component.

[0011] Preferably, the side of the moving rod is fixedly connected to the side of the lathe body. The top of the lathe body is fixedly connected to the bottom of the fan.

[0012] Preferably, the protection component includes a protection frame. An arc-shaped air guide plate is fixedly connected to the top of the protection frame. A protection plate is fixedly connected to the side of the protection frame. An air guide pipe penetrates and is fixedly connected to the top of the protection frame. The air guide pipe is communicated with the output end of the fan. The protection frame is sleeved on the side of the moving sleeve and is rotatably connected to the moving sleeve.

[0013] Preferably, the fixing assembly includes an arc-shaped fixing plate, the side of the arc-shaped fixing plate is provided with a threaded groove, the side of the arc-shaped fixing plate is sleeved and threadedly connected with an arc-shaped collar, the side of the arc-shaped collar is fixedly connected with a power-assisting handle, the side of the arc-shaped fixing plate is fixedly connected with the side of the movable sleeve, the center position of the arc-shaped air guide plate is aligned with the turning center, and during the air injection process, the air is concentratedly injected from multiple angles on the surface of the turning workpiece, in addition to cooling the workpiece, the injection airflow at each angle simultaneously cleans the iron filings, thereby reducing the impact of the iron filings on the turning tool or the turning workpiece, and the protective plate is set to limit the travel position of the tool collision detection column, so that the tool collision detection column moves when it touches the side of the protective plate to trigger an alarm, and the protective plate can also block the iron filings to prevent the iron filings from flying around. The iron filings are cleaned in a directional manner while the workpiece is cooled, thereby ensuring the cutting quality and preventing the iron filings from flying around, and at the same time, the travel of the turning tool is limited to prevent the tool collision.

[0014] The present invention provides a CNC lathe with a tool collision protection structure. The invention has the following beneficial effects:

[0015] 1. The CNC lathe with a tool collision protection structure is provided with an angle adjustment component that drives the height adjustment component to move, and the height adjustment component drives the anti-collision tool mechanism to move. The anti-collision tool mechanism is fixed before turning, and the position is fixed according to the limit feed amount of the turning tool to ensure that the corresponding device of the anti-collision tool mechanism is stably triggered before the turning tool touches the chuck to issue a warning sound. The anti-collision tool mechanism is fixed to the top of the tool fixing frame through the height adjustment component and the angle adjustment component, so as to ensure that the anti-collision tool mechanism moves synchronously according to the position of the turning tool when the turning tool moves, so as to ensure that the range of movement of the turning tool is always within the safe range. The anti-collision function of the turning tool is realized, so as to avoid the phenomenon of tool collision when the turning tool exceeds the normal range.

[0016] 2. The CNC lathe with the tool collision protection structure is provided with a limit ring that drives the rotating sleeve to descend under the pressure, and the descending rotating sleeve drives the limit bar to engage, so that the rotating sleeve is fixed in position after rotating to the specified position, thereby ensuring that angle deviation and other problems are prevented during processing. The angle adjustment function of the tool collision prevention mechanism is realized, and the operation is simple, which is suitable for the tool collision prevention function under different turning conditions.

[0017] 3. The CNC lathe with a knife collision protection structure is provided with a movable plate that rises or falls to drive the movable bracket to rise or fall, thereby adjusting the height of the anti-knife collision mechanism. During the height adjustment process, the handle turntable is connected to the movable plate through a thread to avoid sliding and offset after the height adjustment is completed, thereby ensuring that the anti-knife collision mechanism points to a specific position.

[0018] 4. For the CNC lathe with a tool collision protection structure, when the tool collision detection column touches the side of the protection device, it means that the turning tool is approaching the limit movement position and a tool collision is about to occur. As the turning tool moves, it drives the tool collision detection column to move. When the tool collision detection column touches the side of the protection device, it is driven to move by the power provided by the turning tool. The tool collision detection column drives the moving plate to move, and the moving plate drives the spring rod to move. The moving plate exerts pressure on the spring rod when it moves. When the turning tool continues to move forward, the distance between the contact electrodes gradually decreases until they touch each other, and the circuit is connected when the contact electrodes touch each other, transmitting a signal to the warning device, thereby emitting a prompt sound indicating an impending tool collision to prompt the operator to take action to avoid the occurrence of a tool collision, or the emergency stop switch is turned on through the circuit connection to perform an emergency stop when the turning tool approaches the tool collision limit situation, thus avoiding the occurrence of a tool collision.

[0019] 5. For the CNC lathe with a tool collision protection structure, the center position of the arc-shaped air guide plate is aligned with the turning center. During the air jetting process, air is concentrated and jetted onto the surface of the turned workpiece from multiple angles. In addition to cooling the workpiece, the jetting airflows from multiple angles simultaneously clean the iron chips, thereby reducing the impact of the iron chips on the turning tool or the turned workpiece. The protection plate is provided to limit the travel position of the tool collision detection column, so that the tool collision detection column moves when it touches the side of the protection plate to trigger an alarm. At the same time, the protection plate can also block the iron chips to prevent them from flying around randomly. It realizes the cooling of the workpiece while cleaning the iron chips in a directional manner, thereby ensuring the cutting quality and preventing the iron chips from flying around randomly. At the same time, it limits the travel of the turning tool to prevent the occurrence of tool collision. Brief Description of the Drawings

[0020] Figure 1 Front structure schematic diagram of the CNC lathe with a tool collision protection structure according to the present invention;

[0021] Figure 2 Structure schematic diagram of the anti-tool-collision device according to the present invention;

[0022] Figure 3 Structure schematic diagram of the angle adjustment component according to the present invention;

[0023] Figure 4 Structure schematic diagram of the height adjustment component according to the present invention;

[0024] Figure 5 Structure schematic diagram of the anti-tool-collision mechanism according to the present invention;

[0025] Figure 6 Structure schematic diagram of the anti-tool-collision component according to the present invention;

[0026] Figure 7 Structure schematic diagram of the protection device according to the present invention;

[0027] Figure 8 Schematic diagram of the internal structure of the protection device of the present invention;

[0028] Figure 9 Schematic diagram of the structure of the protection component of the present invention;

[0029] Figure 10 Schematic diagram of the internal structure of the fixing component of the present invention;

[0030] Figure 11 Schematic diagram of the structure of the fixing component of the present invention.

[0031] In the figure: 1, lathe main body; 2, chuck; 3, protection device; 4, sliding bracket; 5, anti-collision tool device; 501, tool base frame; 502, first chute; 503, active lead screw; 504, tool fixing frame; 505, transverse lead screw; 506, first motor; 507, angle adjustment component; 508, height adjustment component; 509, anti-collision tool mechanism; 5071, adjustment base; 5072, adjustment column; 5073, limit ring; 5074, rotating sleeve; 5075, spring; 5076, limit strip; 5081, adjustment bottom plate; 5082, adjustment bracket; 5083, moving bracket; 5084, moving plate; 5085, threaded column; 5086, handle turntable; 5087, first slider; 5091, anti-collision tool bracket; 5092, fixing bolt; 5093, fixing slider; 5094, anti-collision tool component; 5095, warning device; 50941, fixing bottom plate; 50942, spring rod; 50943, moving bottom plate; 50944, tool collision detection column; 50945, contact electrode; 301, moving rod; 302, moving sleeve; 303, protection component; 304, limit plate; 305, fixing component; 306, fan; 3031, protection frame; 3032, arc-shaped air guide plate; 3033, protection plate; 3034, air duct; 3051, arc-shaped fixing plate; 3052, threaded groove; 3053, arc-shaped collar; 3054, assisting handle. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figure 1 - Figure 2, the present invention provides a technical solution: a numerical control lathe with a tool collision protection structure. It includes a lathe body 1, a chuck 2 is rotatably connected to the side of the lathe body 1, a protection device 3 is fixedly connected to the top of the lathe body 1, a sliding bracket 4 is fixedly connected to the side of the lathe body 1, and an anti-collision tool device 5 is fixedly connected to the side of the lathe body 1. The protection device 3 is arranged above the chuck 2, the anti-collision tool device 5 is arranged above the sliding bracket 4, and the sliding bracket 4 is arranged at the bottom of the chuck 2;

[0034] Working principle: Before the operator performs turning operations, tool setting operations need to be carried out. When performing tool setting, manually move the corresponding components of the anti-collision tool device 5 and fix the positions of the corresponding components of the anti-collision tool device 5, thereby limiting the moving range of the tool relative to the chuck 2. When the tool is too close to the chuck 2, the anti-collision tool device 5 issues a warning indicating an impending tool collision or directly triggers the emergency stop switch, thereby preventing tool collisions and enabling the tool to maintain a normal working state during normal operation. When the tool accidentally exceeds the limited range, the corresponding components on the anti-collision tool device 5 are triggered to emit a warning sound, thereby reminding the staff that a tool collision is about to occur and avoiding tool collisions.

[0035] The anti-collision tool device 5 includes a tool base frame 501. A first chute 502 is provided at the top of the tool base frame 501. A driving lead screw 503 penetrates and is threadedly connected to the side of the tool base frame 501. A tool fixing frame 504 is slidably connected to the top of the tool base frame 501 through the first chute 502. A chute adapted to the first chute 502 is fixedly connected to the bottom of the tool fixing frame 504. A horizontal lead screw 505 penetrates and is threadedly connected to the side of the tool fixing frame 504. One end of the horizontal lead screw 505 away from the tool fixing frame 504 is fixedly connected to a first motor 506. The bottom of the first motor 506 is fixedly connected to the top of the tool base frame 501. An angle adjustment assembly 507 is fixedly connected to the top of the horizontal lead screw 505. A height adjustment assembly 508 is rotatably connected to the top of the angle adjustment assembly 507. An anti-collision tool mechanism 509 is slidably connected to the top of the height adjustment assembly 508. The side of the driving lead screw 503 is rotatably connected to the side of the lathe body 1. The bottom of the tool base frame 501 is slidably connected to the top of the sliding bracket 4.

[0036] Working principle: When turning operation is required, the operator operates the machine to run. The driving lead screw 503 rotates to drive the tool base 501 to move. The movement of the tool base 501 drives the tool fixing bracket 504 to move. The movement of the tool fixing bracket 504 drives the angle adjustment assembly 507 to move. The movement of the angle adjustment assembly 507 drives the height adjustment assembly 508 to move. The movement of the height adjustment assembly 508 drives the anti-collision tool mechanism 509 to move. The anti-collision tool mechanism 509 is fixed before turning. It is fixed according to the limit feed of the turning tool to ensure that the corresponding device of the anti-collision tool mechanism 509 is stably triggered before the turning tool touches the chuck, thus emitting a warning sound. The anti-collision tool mechanism 509 is fixed on the top of the tool fixing bracket 504 through the height adjustment assembly 508 and the angle adjustment assembly 507, so as to ensure that the anti-collision tool mechanism 509 moves synchronously according to the position of the turning tool during the movement of the turning tool, so as to ensure that the movement range of the turning tool is always within the safe range. The anti-collision function of the turning tool is realized, thus avoiding the phenomenon of tool collision when the turning tool exceeds the normal range.

[0037] Please refer to Figure 1 - Figure 4 As shown in the figure, the present invention provides a technical solution: The angle adjustment assembly 507 includes an adjustment base 5071. The top of the adjustment base 5071 is fixedly connected with an adjustment column 5072. The top of the adjustment column 5072 is fixedly connected with a limit ring 5073. A rotating sleeve 5074 is sleeved and slidably connected to the side of the adjustment column 5072. A spring 5075 is fixedly connected to the bottom of the limit ring 5073. The spring 5075 is arranged between the bottom of the limit ring 5073 and the inner bottom of the rotating sleeve 5074. The bottom of the rotating sleeve 5074 and the top of the adjustment base 5071 are both fixedly connected with limit bars 5076. The bottom of the adjustment base 5071 is fixedly connected with the top of the tool fixing bracket 504. The top of the rotating sleeve 5074 is fixedly connected with the bottom of the height adjustment assembly 508.

[0038] Working principle: When the operator needs to adjust the angle, manually move the rotating sleeve 5074. The upward movement of the rotating sleeve 5074 drives the spring 5075 to be compressed. The operator rotates the rotating sleeve 5074 according to the actual situation to make the anti-collision tool assembly 5094 point to a specific angle. After the anti-collision tool assembly 5094 points to a specific angle, under the pressure of the limit ring 5073, the rotating sleeve 5074 is driven to descend. The descent of the rotating sleeve 5074 drives the limit bars 5076 to engage, so that the rotating sleeve 5074 is fixed in position after rotating to the specified position, thus ensuring that problems such as angle deviation are prevented during processing. The angle adjustment function of the anti-collision tool mechanism 509 is realized, and the operation is simple, adapting to the anti-collision function of the turning tool under different turning conditions.

[0039] The height adjustment assembly 508 includes an adjustment base plate 5081. A top of the adjustment base plate 5081 is fixedly connected with an adjustment bracket 5082. A side surface of the adjustment base plate 5081 is rotatably connected with a moving bracket 5083 through a rotating pin. An inner side surface of the moving bracket 5083 is rotatably connected with a moving plate 5084 through a rotating pin. A top of the moving plate 5084 penetrates and is threadedly connected with a threaded column 5085. A top of the threaded column 5085 is fixedly connected with a handle turntable 5086. A bottom of the threaded column 5085 is rotatably connected with a first slider 5087. A top of the adjustment base plate 5081 is provided with a chute adapted to the first slider 5087. A bottom of the adjustment base plate 5081 is fixedly connected with a top of a rotating sleeve 5074. A top of the moving bracket 5083 is slidably connected with an anti-collision knife mechanism 509.

[0040] Working principle: When height adjustment is required, manually rotate to drive the handle turntable 5086 to rotate. The rotation of the handle turntable 5086 drives the threaded column 5085 to rotate. The rotation of the threaded column 5085 drives the moving plate 5084 to rise or fall. The rise or fall of the moving plate 5084 drives the moving bracket 5083 to rise or fall, thereby adjusting the height of the anti-collision knife mechanism 509. During the height adjustment process, the handle turntable 5086 is connected to the moving plate 5084 through a thread, thereby avoiding sliding and offset after the height adjustment is completed, so as to ensure that the anti-collision knife mechanism 509 points to a specific position.

[0041] Please refer to Figure 1 - Figure 6 The anti-collision knife mechanism 509 includes an anti-collision knife bracket 5091. One end of the anti-collision knife bracket 5091 penetrates and is threadedly connected with a fixing bolt 5092. A bottom of the fixing bolt 5092 is fixedly connected with a fixing slider 5093. One end of the anti-collision knife bracket 5091 away from the fixing bolt 5092 is fixedly connected with an anti-collision knife assembly 5094. A side surface of the anti-collision knife bracket 5091 is fixedly connected with a warning device 5095. A bottom of the moving bracket 5083 is provided with a chute adapted to the fixing slider 5093. The fixing bolt 5092 is slidably connected with a top of the moving bracket 5083 through the fixing slider 5093.

[0042] The anti-collision tool component 5094 includes a fixed bottom plate 50941. A spring rod 50942 passes through and is slidably connected to the side of the fixed bottom plate 50941. A moving bottom plate 50943 is fixedly connected to the side of the spring rod 50942. A tool collision detection column 50944 is fixedly connected to the side of the moving bottom plate 50943 away from the fixed bottom plate 50941. Contact electrodes 50945 are fixedly connected to the sides of both the fixed bottom plate 50941 and the moving bottom plate 50943. The side of the fixed bottom plate 50941 is fixedly connected to the side of the anti-collision tool support 5091.

[0043] Working principle: When the turning tool moves, the turning tool and the tool collision detection column 50944 move synchronously. The position of the tool collision detection column 50944 is set before turning to determine the extreme movement distance of the turning tool. When the tool collision detection column 50944 touches the side of the protection device 3, that is, the turning tool is approaching the extreme movement position and a tool collision is about to occur. As the turning tool moves, it drives the tool collision detection column 50944 to move. When the tool collision detection column 50944 touches the side of the protection device 3, it drives the tool collision detection column 50944 to move under the power provided by the turning tool. The tool collision detection column 50944 drives the moving bottom plate 50943 to move. The movement of the moving bottom plate 50943 drives the spring rod 50942 to move. The movement of the moving bottom plate 50943 generates pressure on the spring rod 50942. When the turning tool continues to move forward, the distance between the contact electrodes 50945 gradually decreases until they touch each other. The contact between the contact electrodes 50945 closes the circuit, transmits a signal to the warning device 5095, and emits a prompt sound indicating an impending tool collision to prompt the operator to take action to avoid a tool collision. Or the emergency stop switch is turned on through the closed circuit to perform an emergency stop when the turning tool is approaching the extreme tool collision situation, thereby avoiding a tool collision.

[0044] Please refer to Figure 1 - Figure 11 The present invention provides a technical solution: The protection device 3 includes a moving rod 301. A moving sleeve 302 is sleeved and slidably connected to the side of the moving rod 301. A protection component 303 is sleeved and rotatably connected to the side of the moving sleeve 302. A limiting plate 304 is fixedly connected to the side of the moving sleeve 302. A fixing component 305 is fixedly connected to the side of the moving sleeve 302. A fan 306 is fixedly connected to the side of the protection component 303. The side of the moving rod 301 is fixedly connected to the side of the lathe main body 1. The top of the lathe main body 1 is fixedly connected to the bottom of the fan 306.

[0045] The protection component 303 includes a protection frame 3031. An arc-shaped air guide plate 3032 is fixedly connected to the top of the protection frame 3031. A protection plate 3033 is fixedly connected to the side of the protection frame 3031. An air guide pipe 3034 penetrates and is fixedly connected to the top of the protection frame 3031. The air guide pipe 3034 is communicated with the output end of the fan 306. The protection frame 3031 is sleeved on the side of the movable sleeve 302 and is rotatably connected to the movable sleeve 302.

[0046] The fixing component 305 includes an arc-shaped fixing plate 3051. A threaded groove 3052 is formed in the side of the arc-shaped fixing plate 3051. An arc-shaped collar 3053 is sleeved and threadedly connected to the side of the arc-shaped fixing plate 3051. A boosting handle 3054 is fixedly connected to the side of the arc-shaped collar 3053. The side of the arc-shaped fixing plate 3051 is fixedly connected to the side of the movable sleeve 302.

[0047] Working principle: The movable sleeve 302 slides on the movable rod 301. When the movable sleeve 302 moves to a suitable position, the operator manually rotates to drive the boosting handle 3054 to rotate. The rotation of the boosting handle 3054 drives the arc-shaped collar 3053 to rotate. The rotation of the arc-shaped collar 3053 makes the arc-shaped fixing plates 3051 fit together, thereby increasing the friction between the threaded groove 3052 and the movable rod 301. Compared with the traditional method, the adjustability of movement is increased while stability is taken into account. The setting of the boosting handle 3054 amplifies the torque during torsion, thereby enhancing the friction between the threaded groove 3052 and the movable rod 301, so as to prevent the occurrence of tool hitting during the anti-collision function. Air enters the interior of the air guide pipe 3034 through the fan 306 and exits through the arc-shaped air guide plate 3032. The central position of the arc-shaped air guide plate 3032 is aligned with the turning center. During the air injection process, the air is centrally injected onto the surface of the turned workpiece from multiple angles. In addition to cooling the workpiece, the injection airflows from multiple angles also clean the iron chips, thereby reducing the influence of the iron chips on the turning tool or the turned workpiece. The setting of the protection plate 3033 limits the advancing position of the tool hitting detection column 50944, so that the tool hitting detection column 50944 moves when it touches the side of the protection plate 3033, thereby triggering an alarm. At the same time, the protection plate 3033 can also block the iron chips to prevent the iron chips from flying randomly. It realizes the cooling of the workpiece while cleaning the iron chips in a directional manner, thereby ensuring the cutting quality and preventing the iron chips from flying randomly. At the same time, it limits the advancement of the turning tool to prevent the occurrence of tool hitting.

[0048] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented by conventional means in the art unless otherwise specified and limited.

Claims

1. A numerically controlled lathe with a tool collision protection structure, comprising a lathe body (1), a chuck (2) is rotatably connected to the side of the lathe body (1), a protection device (3) is fixedly connected to the top of the lathe body (1), a sliding bracket (4) is fixedly connected to the side of the lathe body (1), and an anti-collision tool device (5) is fixedly connected to the side of the lathe body (1), characterized in that: The protective device (3) is arranged above the chuck (2), the anti-collision tool device (5) is arranged above the sliding bracket (4), and the sliding bracket (4) is arranged at the bottom of the chuck (2). The anti-collision tool device (5) includes a tool base frame (501). A first chute (502) is formed at the top of the tool base frame (501). A driving lead screw (503) penetrates and is threadedly connected to the side of the tool base frame (501). A tool fixing frame (504) is slidably connected to the top of the tool base frame (501) through the first chute (502). A chute adapted to the first chute (502) is fixedly connected to the bottom of the tool fixing frame (504). A horizontal lead screw (505) penetrates and is threadedly connected to the side of the tool fixing frame (504). One end of the horizontal lead screw (505) away from the tool fixing frame (504) is fixedly connected to a first motor (506). The bottom of the first motor (506) is fixedly connected to the top of the tool base frame (501). An angle adjustment assembly (507) is fixedly connected to the top of the horizontal lead screw (505). A height adjustment assembly (508) is rotatably connected to the top of the angle adjustment assembly (507). An anti-collision tool mechanism (509) is slidably connected to the top of the height adjustment assembly (508). The side of the driving lead screw (503) is rotatably connected to the side of the lathe body (1). The bottom of the tool base frame (501) is slidably connected to the top of the sliding bracket (4).

2. The numerically controlled lathe with a tool collision protection structure according to claim 1, wherein: The angle adjustment assembly (507) includes an adjustment base (5071). An adjustment column (5072) is fixedly connected to the top of the adjustment base (5071). A limit ring (5073) is fixedly connected to the top of the adjustment column (5072). A rotating sleeve (5074) is sleeved and slidably connected to the side of the adjustment column (5072). A spring (5075) is fixedly connected to the bottom of the limit ring (5073). The spring (5075) is arranged between the bottom of the limit ring (5073) and the inner bottom of the rotating sleeve (5074). Limit bars (5076) are fixedly connected to the bottom of the rotating sleeve (5074) and the top of the adjustment base (5071). The bottom of the adjustment base (5071) is fixedly connected to the top of the tool fixing frame (504). The top of the rotating sleeve (5074) is fixedly connected to the bottom of the height adjustment assembly (508).

3. The numerically controlled lathe with a tool collision protection structure according to claim 2, characterized in that: The height adjustment assembly (508) includes an adjustment base plate (5081). A top of the adjustment base plate (5081) is fixedly connected to an adjustment bracket (5082). A side surface of the adjustment base plate (5081) is rotatably connected to a moving bracket (5083) through a rotating pin. An inner side surface of the moving bracket (5083) is rotatably connected to a moving plate (5084) through a rotating pin. A top of the moving plate (5084) penetrates and is threadedly connected to a threaded column (5085). A top of the threaded column (5085) is fixedly connected to a handle turntable (5086). A bottom of the threaded column (5085) is rotatably connected to a first slider (5087). A top of the adjustment base plate (5081) is provided with a chute adapted to the first slider (5087). A bottom of the adjustment base plate (5081) is fixedly connected to a top of a rotating sleeve (5074). A top of the moving bracket (5083) is slidably connected to an anti-collision knife mechanism (509).

4. A numerically controlled lathe with a tool collision protection structure according to claim 3, characterized in that: The anti-collision knife mechanism (509) includes an anti-collision knife bracket (5091). One end of the anti-collision knife bracket (5091) penetrates and is threadedly connected to a fixing bolt (5092). A bottom of the fixing bolt (5092) is fixedly connected to a fixing slider (5093). A side of the anti-collision knife bracket (5091) away from the fixing bolt (5092) is fixedly connected to an anti-collision knife assembly (5094). A side surface of the anti-collision knife bracket (5091) is fixedly connected to a warning device (5095). A bottom of the moving bracket (5083) is provided with a chute adapted to the fixing slider (5093). The fixing bolt (5092) is slidably connected to a top of the moving bracket (5083) through the fixing slider (5093).

5. A numerically controlled lathe with a tool collision protection structure according to claim 4, characterized in that: The anti-collision knife assembly (5094) includes a fixed base plate (50941). A side surface of the fixed base plate (50941) penetrates and is slidably connected to a spring rod (50942). A side of the spring rod (50942) is fixedly connected to a moving base plate (50943). A side of the moving base plate (50943) away from the fixed base plate (50941) is fixedly connected to a knife collision detection column (50944). Side surfaces of the fixed base plate (50941) and the moving base plate (50943) are both fixedly connected to contact electrodes (50945). A side surface of the fixed base plate (50941) is fixedly connected to a side surface of the anti-collision knife bracket (5091).

6. The numerically controlled lathe with a tool collision protection structure according to claim 1, characterized in that: The protection device (3) includes a moving rod (301). A side surface of the moving rod (301) is sleeved and slidably connected to a moving sleeve (302). A side surface of the moving sleeve (302) is sleeved and rotatably connected to a protection assembly (303). A side surface of the moving sleeve (302) is fixedly connected to a limiting plate (304). A side surface of the moving sleeve (302) is fixedly connected to a fixing assembly (305). A side surface of the protection assembly (303) is fixedly connected to a fan (306).

7. A numerically controlled lathe with a tool collision protection structure according to claim 6, characterized in that: The side of the moving rod (301) is fixedly connected to the side of the lathe body (1), and the top of the lathe body (1) is fixedly connected to the bottom of the fan (306).

8. A numerically controlled lathe with a tool collision protection structure according to claim 6, characterized in that: The protection component (303) includes a protection frame (3031). An arc-shaped air guide plate (3032) is fixedly connected to the top of the protection frame (3031). A protection plate (3033) is fixedly connected to the side of the protection frame (3031). An air guide pipe (3034) penetrates and is fixedly connected to the top of the protection frame (3031). The air guide pipe (3034) is communicated with the output end of the fan (306). The protection frame (3031) is sleeved on the side of the moving sleeve (302) and is rotatably connected to the moving sleeve (302).

9. A numerically controlled lathe with a tool collision protection structure according to claim 6, characterized in that: The fixing component (305) includes an arc-shaped fixing plate (3051). A threaded groove (3052) is formed in the side of the arc-shaped fixing plate (3051). An arc-shaped sleeve ring (3053) is sleeved and threadedly connected to the side of the arc-shaped fixing plate (3051). A boosting handle (3054) is fixedly connected to the side of the arc-shaped sleeve ring (3053). The side of the arc-shaped fixing plate (3051) is fixedly connected to the side of the moving sleeve (302).

Images