Cutter advancing anti-collision structure for metal cutting machine tool

Abstract

The invention belongs to the technical field of metal cutting, and particularly discloses a cutter advancing anti-collision structure for a metal cutting machine tool, which comprises a base plate, a driving groove is formed in the top of the base plate, a driving block is slidably connected between the inner walls of the two sides of the driving groove, and a buffer opening is formed in the edge, close to one side, of the top of the driving block. Two guide rods are fixed to the inner wall of one side of the buffering opening, a tool rest base is slidably connected between the outer surfaces of the two guide rods, and a cooling assembly is arranged in the tool rest base. According to the metal cutting device, by arranging the adjusting assembly, the cut-off assembly, the positioning assembly and the cooling assembly, in the process of driving a cutting knife to cut metal, when the knife collision phenomenon occurs, a power source is cut off in time, the cutting knife is prevented from continuously cutting forwards, meanwhile, a driving block is positioned, shaking is prevented, and the cutting efficiency is improved. And the cooling assembly is triggered to cool the cutting part, so that high temperature generated at the metal cutting part after tool collision is eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of metal cutting, in particular to a tool travel anti-collision structure for a metal cutting machine tool. Background Art

[0002] Metal cutting is a material removal and forming method in the metal forming process. It still accounts for a large proportion in today's mechanical manufacturing. The metal cutting process is a process of interaction between the workpiece and the tool. The tool removes excess metal from the workpiece to be processed and, under the premise of controlling productivity and cost, makes the workpiece obtain geometric accuracy, dimensional accuracy and surface quality that meet the design and process requirements.

[0003] Currently, when using traditional machine tools to process metal, the cutting tool needs to be fixed on the tool holder, and the tool holder is driven by a screw rod to move toward the metal at a fixed speed to cut the metal. However, during the cutting process, the cutting tool cannot move because the tool holder is fixed, and the outer surface of the metal is uneven. When the cutting amount between the cutting tool and the metal increases, a greater impact force will be generated on the tool, and severe tool collision will occur. Summary of the invention

[0004] The purpose of the present invention is to provide a tool travel anti-collision structure for metal cutting machine tools, which solves the problem that when the cutting amount between the cutting tool and the metal increases during the metal cutting process of the current machine tool, a large impact force will be generated on the tool, and in severe cases, a tool collision phenomenon will occur.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a tool travel anti-collision structure for a metal cutting machine tool, comprising a pad, a driving groove is provided on the top of the pad, a driving block is slidably connected between the inner walls on both sides of the driving groove, a buffer opening is provided on the top of the driving block near one side edge, two guide rods are fixed to the inner wall on one side of the buffer opening, a tool holder seat is slidably connected between the outer surfaces of the two guide rods, a cooling component is provided inside the tool holder seat, a truncation component is provided inside the driving block, positioning components are provided on both sides of the truncation component inside the driving block, an adjustment component is provided inside the driving block on one side of the tool holder seat, a mounting groove is provided on the top of the tool holder seat, a limiting frame is fixed to the inner bottom surface of the mounting groove, and a cutting tool is provided inside the mounting groove;

[0006] A motor is fixed to the inner wall of one side of the driving groove, a screw is fixed to the output end of the motor, the other end of the screw is rotatably connected to the inner wall of the other side of the driving groove, a driving sleeve is rotatably connected inside the driving block, both ends of the driving sleeve extend to the two ends of the driving block respectively, and the driving sleeve is threadedly connected to the outer surface of the screw.

[0007] Preferably, guide grooves are provided on the inner walls on both sides of the driving groove near the bottom edge, guide strips are fixed on the outer surfaces on both sides of the driving block, the two guide strips are correspondingly slidably engaged in the inside of the guide grooves, mounting strips are fixed on both sides of the pad near the bottom edge, and a plurality of limit openings are equidistantly provided on the inner walls on both sides of the driving groove in the middle.

[0008] Preferably, the adjustment assembly includes an adjustment cavity opened inside the driving block, a movable ring is slidably connected between the inner walls of the adjustment cavity near one side edge, a connecting rod is rotatably connected to one side of the tool holder seat, one end of the connecting rod slides and extends into the interior of the adjustment cavity, and the outer surface of one end of the connecting rod is slidably connected between the inner walls of the adjustment cavity, and a first spring is fixed between one end of the connecting rod and one side of the movable ring.

[0009] Preferably, a screw is provided on one side of the driving block, one end of the screw is threadedly inserted into the interior of the adjusting cavity, and one end of the screw is rotatably engaged between the inner walls of the movable ring, a scale bar is provided on the outer surface of the screw, and a force sensor is fixed to the inner wall of one side of the adjusting cavity.

[0010] Preferably, the truncation assembly includes a rectangular key block, both sides of which are inclined near the top edge, a rectangular cavity is opened inside the driving block, the rectangular key block is slidably connected between the inner walls of the rectangular cavity, a key slot is opened on the outer surface of the driving sleeve, the key slot and the rectangular cavity are connected to each other, and the bottom of the rectangular key block is engaged in the key slot.

[0011] Preferably, a reciprocating cavity is provided inside the driving block and located above the rectangular cavity, an adjusting groove is provided on the inner bottom surface of the buffer port, a wedge block is fixed to the bottom of the tool holder seat, the bottom of the wedge block is slidably connected between the inner walls on both sides of the adjusting groove, a lifting block is slidably connected between the inner walls on both sides of the adjusting groove near the bottom edge, one side of the lifting block is inclined, and the inclined surface on the lifting block is in contact with the inclined surface of the bottom of the wedge block, a lifting rod is provided inside the reciprocating cavity, the top of the lifting rod slides through the interior of the adjusting groove and is fixed to the bottom of the lifting block, the bottom of the lifting rod slides through the interior of the rectangular cavity and is fixed to the top of the rectangular key block, a fixing ring is fixed to the outer surface of the lifting rod, the fixing ring is slidably connected between the inner walls of the reciprocating cavity, and a second spring is fixed between the bottom of the fixing ring and the inner bottom surface of the reciprocating cavity.

[0012] Preferably, the positioning assembly includes a rectangular limit bar, a receiving groove is opened inside the driving block, the rectangular limit bar is slidably connected inside the receiving groove, the opening of the receiving groove is opposite to the limit port, a cylindrical cavity is opened inside the driving block, a guide rod is arranged inside the cylindrical cavity, one end of the guide rod slides through the interior of the receiving groove and is fixed to one end of the rectangular limit bar.

[0013] Preferably, the other end of the guide rod slides through the interior of the rectangular cavity and fits into the inclined surface on the rectangular key block. A fixing plate is fixed to the outer surface of the guide rod, and the fixing plate is slidably connected between the inner walls of the cylindrical cavity. A third spring is fixed between one side of the fixing plate and one side inner wall of the cylindrical cavity.

[0014] Preferably, the cooling assembly includes a buffer cavity opened inside the tool holder seat near the edge of the top surface, a sealing plate is fixed on one side of the tool holder seat, a sealing groove is opened on the inner wall of one side of the buffer port, the buffer port is slidably connected between the inner walls of the sealing groove, two threaded tubes are fixed on the inner wall of one side of the mounting groove near the top edge, and one end of the two threaded tubes respectively penetrates into the interior of the buffer cavity.

[0015] Preferably, a docking tube is fixed to the outer surface of one side of the driving block, one end of the docking tube passes through the interior of the sealing groove, a flow channel is opened inside the tool holder seat, one end of the flow channel passes through the interior of the buffer cavity, the other end of the flow channel passes through one side of the sealing plate, and the flow channel opening on one side of the sealing plate is opposite to the opening of the docking tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with an adjustment component, a cut-off component, a positioning component and a cooling component, which is conducive to timely cutting off the power source when a knife collision occurs during the process of driving the cutting knife to cut the metal, preventing the cutting knife from continuing to cut forward, and positioning the driving block to prevent shaking, and triggering the cooling component to cool the cutting part, thereby eliminating the high temperature generated at the metal cutting part after the knife collision;

[0018] 2. The present invention is provided with an adjustment component, which can adjust the upper limit of the maximum impact knife support force. When the adjustment component is working, the pulling force of the first spring on the connecting rod can be changed by rotating the screw rod, thereby changing the fitting force between the tool holder seat and the driving block;

[0019] 3. The present invention is provided with a cut-off component, which can cut off the power source in time when the knife collision phenomenon occurs. When the cut-off component is working, after the knife collision phenomenon occurs, the cutting resistance will be much greater than the maximum supporting force of the adjustment component on the tool holder seat, and the tool holder seat will be driven to slide to one side. When sliding, the pressing force on the second spring is released, and the rectangular key block slides out of the key slot under the elastic force of the second spring, thereby releasing the limit between the drive sleeve and the drive block;

[0020] 4. The present invention is provided with a positioning component and a cooling component, which can limit the driving block after the cut-off component cuts off the power source transmission to prevent sliding, and cool the cutting part to eliminate the high temperature generated in the metal cutting part after the knife hits. When the positioning component is working, in the process of the rectangular key block sliding upward from the key slot, the guide rod is pushed outward by the inclined surface on the rectangular key block, thereby driving one end of the rectangular limiting strip to be inserted into the interior of the limiting opening, so that the driving block can be limited. When the cooling component is working, in the process of the tool holder seat sliding to one side, the sealing plate will be driven to slide to one side of the sealing groove. When the positioning component is triggered, the flow channel opening on one side of the sealing plate is opposite to the opening of the docking tube, so that the external coolant can enter the buffer cavity, and finally sprayed from the threaded tube to the knife hitting part for cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention proposes a local explosion of a cutting tool and a mounting groove of a tool travel anti-collision structure for a metal cutting machine tool Figure 1 ;

[0022] Figure 2 The present invention proposes a local explosion of a cutting tool and a mounting groove of a tool travel anti-collision structure for a metal cutting machine tool Figure 2 ;

[0023] Figure 3 The present invention provides a partial cross-sectional three-dimensional structural schematic diagram of a tool travel anti-collision structure for a metal cutting machine tool;

[0024] Figure 4 The present invention provides a schematic diagram of a three-dimensional structure of a cutter block in a metal cutting machine tool travel anti-collision structure from one side;

[0025] Figure 5 The present invention provides a schematic diagram of a three-dimensional structure of a cutter travel anti-collision structure of a driving block on the other side of a metal cutting machine tool;

[0026] Figure 6 The present invention provides a schematic cross-sectional three-dimensional structure diagram of a tool holder in a tool travel anti-collision structure for a metal cutting machine tool;

[0027] Figure 7 For the present invention Figure 4A partial enlarged view of point A in the middle;

[0028] Figure 8 For the present invention Figure 5 A partial enlarged view of point B in the middle;

[0029] Fig. 9 For the present invention Figure 3 A partial enlarged view of point C in the middle;

[0030] Fig.10 The present invention provides a stereoscopic schematic diagram of an explosion structure between a tool holder and a cutting tool in a tool travel anti-collision structure for a metal cutting machine tool.

[0031] In the figure: 1, pad; 2, mounting strip; 3, drive slot; 4, limit opening; 5, screw rod; 6, drive block; 7, tool holder seat; 8, cutting knife; 9, motor; 10, guide slot; 11, guide strip; 12, drive sleeve; 13, guide rod; 14, mounting slot; 15, limit frame; 16, buffer chamber; 17, flow channel; 18, sealing plate; 19, threaded pipe; 20, adjustment slot; 21, wedge block; 22, lifting block; 23, adjustment chamber; 24, Connecting rod; 25, movable ring; 26, force sensor; 27, screw; 28, scale bar; 29, first spring; 30, reciprocating cavity; 31, fixed ring; 32, lifting rod; 33, second spring; 34, rectangular cavity; 35, rectangular key block; 36, keyway; 37, cylindrical cavity; 38, guide rod; 39, third spring; 40, fixed plate; 41, butt tube; 42, sealing groove; 43, buffer port; 44, storage groove; 45, rectangular limit strip. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-10The present invention provides a technical solution: a tool travel anti-collision structure for a metal cutting machine tool, comprising a pad 1, a driving groove 3 is provided on the top of the pad 1, a driving block 6 is slidably connected between the inner walls on both sides of the driving groove 3, a buffer port 43 is provided on the top of the driving block 6 near one side edge, two guide rods 13 are fixed to the inner wall of one side of the buffer port 43, a tool holder seat 7 is slidably connected between the outer surfaces of the two guide rods 13, a cooling component is provided inside the tool holder seat 7, a truncation component is provided inside the driving block 6, positioning components are provided on both sides of the truncation component inside the driving block 6, an adjustment component is provided inside the driving block 6 on one side of the tool holder seat 7, a mounting groove 14 is provided on the top of the tool holder seat 7, a limiting frame 15 is fixed to the inner bottom surface of the mounting groove 14, and a cutting tool 8 is provided inside the mounting groove 14;

[0034] A motor 9 is fixed to the inner wall of one side of the driving groove 3, and a screw rod 5 is fixed to the output end of the motor 9. The other end of the screw rod 5 is rotatably connected to the inner wall of the other side of the driving groove 3. A driving sleeve 12 is rotatably connected to the inside of the driving block 6. Both ends of the driving sleeve 12 extend to the two ends of the driving block 6, and the driving sleeve 12 is threadedly connected to the outer surface of the screw rod 5. Guide grooves 10 are provided on the inner walls of both sides of the driving groove 3 near the bottom edge. Guide strips 11 are fixed to the outer surfaces of both sides of the driving block 6. The two guide strips 11 are correspondingly slidably engaged in the inside of the guide groove 10. Mounting strips 2 are fixed to both sides of the pad 1 near the bottom edge. A plurality of limit openings 4 are equidistantly provided on the inner walls of both sides of the driving groove 3 in the middle.

[0035] The effect achieved is that, by providing an adjustment component, the upper limit of the maximum knife collision support force can be adjusted, by using the cut-off component, the power source can be cut off in time when the knife collision phenomenon occurs, by using the positioning component, the drive block 6 can be limited after the cut-off component cuts off the power source transmission to prevent sliding, by using the cooling component, the coolant can be sprayed to the knife collision part after the positioning component is triggered to eliminate the high temperature generated in the metal cutting part after the knife collision. When using this device, firstly, the adjustment component is used to adjust the upper limit of the cutting force of the tool used, and then the motor 9 is started to drive the screw rod 5 to rotate. When the screw rod 5 rotates, it will drive the drive sleeve 12 to slide on the outer surface of the screw rod 5, thereby driving the drive block 6 to slide, so as to achieve the purpose of feed cutting. At the same time, when the drive block 6 slides, the guide groove 10 and the guide bar 11 are mutually engaged, so that the sliding of the drive block 6 is more stable, and the tool holder seat 7 is slidably connected between the outer surfaces of the two guide rods 13, so that the tool holder seat 7 is convenient for guiding it during the movement after the subsequent knife collision phenomenon occurs.

[0036] like Figure 2 , Figure 3 , Figure 4 and Fig. 9As shown, the adjustment component includes an adjustment chamber 23 opened inside the driving block 6, and a movable ring 25 is slidably connected between the inner walls of the adjustment chamber 23 near one side edge. A connecting rod 24 is rotatably connected to one side of the tool holder seat 7, and one end of the connecting rod 24 slides and extends into the interior of the adjustment chamber 23, and the outer surface of one end of the connecting rod 24 is slidably connected between the inner walls of the adjustment chamber 23, and a first spring 29 is fixed between one end of the connecting rod 24 and one side of the movable ring 25. A screw 27 is provided on one side of the driving block 6, and one end of the screw 27 is threadedly inserted into the interior of the adjustment chamber 23, and one end of the screw 27 is rotatably engaged between the inner walls of the movable ring 25, and a scale bar 28 is provided on the outer surface of the screw 27. A force sensor 26 is fixed to the inner wall of one side of the adjustment chamber 23.

[0037] The effect achieved is that the pulling force of the first spring 29 on the connecting rod 24 can be changed by rotating the screw 27, thereby changing the fitting force between the tool holder 7 and the driving block 6. Since one end of the screw 27 is rotated and engaged between the inner walls of the movable ring 25, the movable ring 25 can be driven to slide to one side when the screw 27 is rotated, thereby pulling the first spring 29. Under the elastic pulling force of the first spring 29, the connecting rod 24 can be driven to slide to one side, so that one side of the tool holder 7 and the inner wall of one side of the buffer port 43 fit each other. When the screw 27 is rotated, the pulling force of the first spring 29 can also be observed through the scale bar 28 on the outer surface of the screw 27. At the same time, when the movable ring 25 is pulled to one side and contacts the sensing end of the force sensor 26, the force sensor 26 will be triggered to alarm, prompting people that the pulling force of the first spring 29 has reached the maximum value.

[0038] like Figure 3 , Figure 4 and Figure 7As shown, the truncation component includes a rectangular key block 35, both sides of which are inclined near the top edge, a rectangular cavity 34 is provided inside the driving block 6, and the rectangular key block 35 is slidably connected between the inner walls of the rectangular cavity 34, a key groove 36 is provided on the outer surface of the driving sleeve 12, and the key groove 36 and the rectangular cavity 34 are communicated with each other, the bottom of the rectangular key block 35 is engaged in the key groove 36, and a reciprocating cavity 30 is provided inside the driving block 6 above the rectangular cavity 34, an adjustment groove 20 is provided on the inner bottom surface of the buffer port 43, a wedge block 21 is fixed to the bottom of the tool holder seat 7, and the bottom of the wedge block 21 is slidably connected between the inner walls of the two sides of the adjustment groove 20, and the adjustment groove 20 A lifting block 22 is slidably connected between the inner walls on both sides near the bottom edge. One side of the lifting block 22 is inclined, and the inclined surface on the lifting block 22 fits with the inclined surface at the bottom of the wedge block 21. A lifting rod 32 is arranged inside the reciprocating cavity 30. The top of the lifting rod 32 slides through the inside of the adjusting groove 20 and is fixed at the bottom of the lifting block 22. The bottom of the lifting rod 32 slides through the inside of the rectangular cavity 34 and is fixed at the top of the rectangular key block 35. A fixing ring 31 is fixed to the outer surface of the lifting rod 32. The fixing ring 31 is slidably connected between the inner walls of the reciprocating cavity 30. A second spring 33 is fixed between the bottom of the fixing ring 31 and the inner bottom surface of the reciprocating cavity 30.

[0039] The effect achieved is that after the knife collision phenomenon occurs, the cutting resistance will be much greater than the maximum supporting force of the adjusting component on the tool holder seat 7. At this time, the tool holder seat 7 will be driven to slide to one side, and the clamping force on the second spring 33 will be released during sliding. Under the elastic force of the second spring 33, the rectangular key block 35 will slide out from the key slot 36, thereby releasing the limit between the drive sleeve 12 and the drive block 6. When the rectangular key block 35 slides upward, it will also trigger the positioning component to work. After the rectangular key block 35 slides out from the key slot 36, the limit between the drive sleeve 12 and the drive block 6 is released. Under the rotation of the screw rod 5, the drive sleeve 12 will rotate with the screw rod 5, while the drive block 6 will not rotate with the drive sleeve 12. The drive block 6 is limited and immobile under the action of the positioning component.

[0040] like Figure 2 , Figure 5 and Figure 8As shown, the positioning assembly includes a rectangular limit bar 45, a receiving groove 44 is opened inside the driving block 6, the rectangular limit bar 45 is slidably connected inside the receiving groove 44, the opening of the receiving groove 44 is opposite to the limit opening 4, a cylindrical cavity 37 is opened inside the driving block 6, a guide rod 38 is arranged inside the cylindrical cavity 37, one end of the guide rod 38 slides through the inside of the receiving groove 44 and is fixed to one end of the rectangular limit bar 45, the other end of the guide rod 38 slides through the inside of the rectangular cavity 34 and fits with the inclined surface on the rectangular key block 35, a fixing plate 40 is fixed on the outer surface of the guide rod 38, the fixing plate 40 is slidably connected between the inner walls of the cylindrical cavity 37, and a third spring 39 is fixed between one side of the fixing plate 40 and one side inner wall of the cylindrical cavity 37.

[0041] The effect achieved is that, in the process of the rectangular key block 35 sliding upward out of the key slot 36, the guide rod 38 is pushed outward by the inclined surface on the rectangular key block 35, thereby driving one end of the rectangular limit strip 45 to be inserted into the interior of the limit opening 4, so that the drive block 6 can be limited. At this time, the third spring 39 is compressed, which facilitates the subsequent resetting of the rectangular limit strip 45.

[0042] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the cooling assembly includes a buffer cavity 16 opened inside the tool holder seat 7 near the top edge, a sealing plate 18 is fixed to one side of the tool holder seat 7, a sealing groove 42 is opened on the inner wall of one side of the buffer port 43, and the buffer port 43 is slidably connected between the inner walls of the sealing groove 42, two threaded tubes 19 are fixed to the inner wall of one side of the mounting groove 14 near the top edge, and one end of the two threaded tubes 19 are correspondingly penetrated into the interior of the buffer cavity 16, a docking tube 41 is fixed to the outer surface of one side of the driving block 6, and one end of the docking tube 41 penetrates into the interior of the sealing groove 42, a flow channel 17 is opened inside the tool holder seat 7, one end of the flow channel 17 penetrates into the interior of the buffer cavity 16, and the other end of the flow channel 17 penetrates into one side of the sealing plate 18, and the opening of the flow channel 17 on one side of the sealing plate 18 is opposite to the opening of the docking tube 41.

[0043] The effect achieved is that when the tool holder seat 7 slides to one side, the sealing plate 18 will be driven to slide to the side of the sealing groove 42. When the positioning component is triggered, the opening of the flow channel 17 on one side of the sealing plate 18 is opposite to the opening of the docking tube 41, so that the external coolant can enter the flow channel 17 through the docking tube 41, and then enter the buffer chamber 16 from the flow channel 17, and finally spray from the threaded tube 19 to the knife collision part for cooling. In actual use, one end of the threaded tube 19 can be connected to other nozzles to adjust the dispersion of the sprayed liquid.

[0044] Working principle: When using the device, first adjust the adjustment component according to the upper limit of the cutting force of the tool used, and then start the motor 9 to drive the screw rod 5 to rotate. When the screw rod 5 rotates, it will drive the driving sleeve 12 to slide on the outer surface of the screw rod 5, thereby driving the driving block 6 to slide, so as to achieve the purpose of feed cutting. At the same time, when the driving block 6 slides, the mutual engagement of the guide groove 10 and the guide strip 11 makes the sliding of the driving block 6 more stable, and the tool holder seat 7 is slidably connected between the outer surfaces of the two guide rods 13, so that the tool holder seat 7 can guide it during the movement process after the subsequent tool collision phenomenon occurs. After the tool collision phenomenon occurs, the cutting resistance will be much greater than the maximum supporting force of the adjustment component on the tool holder seat 7, and then the tool holder seat 7 will be driven to slide to one side, and the clamping force on the second spring 33 will be released during sliding. Under the elastic force of the second spring 33, the rectangular key block 35 is pushed out from the key groove 36. When the screw rod 5 is turned, the driving sleeve 12 will rotate with the screw rod 5, while the driving block 6 will not rotate with the driving sleeve 12. When the tool holder seat 7 slides to one side, the sealing plate 18 will be driven to slide to the side of the sealing groove 42. When the positioning component is triggered, the opening of the flow channel 17 on the side of the sealing plate 18 is opposite to the opening of the docking pipe 41, so that the external coolant can enter the flow channel 17 through the docking pipe 41, and then enter the buffer chamber 16 from the flow channel 17, and finally spray from the threaded tube 19 to the impact knife part for cooling. At the same time, when the cut-off component is triggered, in the process of the rectangular key block 35 sliding upward out of the key groove 36, the guide rod 38 is pushed outward by the inclined surface on the rectangular key block 35, thereby driving one end of the rectangular limit strip 45 to be inserted into the interior of the limit opening 4, so that the driving block 6 can be limited.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool travel anti-collision structure for a metal cutting machine tool, characterized in that: The invention comprises a backing plate (1), wherein a driving groove (3) is provided on the top of the backing plate (1), a driving block (6) is slidably connected between the inner walls on both sides of the driving groove (3), a buffer opening (43) is provided on the top of the driving block (6) near one side edge, two guide rods (13) are fixed on the inner wall on one side of the buffer opening (43), a tool holder seat (7) is slidably connected between the outer surfaces of the two guide rods (13), a cooling component is provided inside the tool holder seat (7), a cutting component is provided inside the driving block (6), positioning components are provided on both sides of the cutting component inside the driving block (6), an adjusting component is provided inside the driving block (6) on one side of the tool holder seat (7), a mounting groove (14) is provided on the top of the tool holder seat (7), a limiting frame (15) is fixed on the inner bottom surface of the mounting groove (14), and a cutting knife (8) is provided inside the mounting groove (14); A motor (9) is fixed to an inner wall of one side of the driving groove (3), a screw rod (5) is fixed to an output end of the motor (9), the other end of the screw rod (5) is rotatably connected to the inner wall of the other side of the driving groove (3), a driving sleeve (12) is rotatably connected inside the driving block (6), both ends of the driving sleeve (12) extend to the two ends of the driving block (6), and the driving sleeve (12) is threadedly connected to the outer surface of the screw rod (5).

2. The tool travel anti-collision structure for metal cutting machine tools according to claim 1, characterized in that: Guide grooves (10) are provided on both inner walls of the driving groove (3) near the bottom edge, guide strips (11) are fixed on both outer surfaces of the driving block (6), and the two guide strips (11) are correspondingly slidably engaged inside the guide grooves (10), mounting strips (2) are fixed on both sides of the pad (1) near the bottom edge, and a plurality of limit openings (4) are equidistantly provided in the middle of both inner walls of the driving groove (3).

3. The tool travel anti-collision structure for metal cutting machine tools according to claim 2, characterized in that: The adjustment component comprises an adjustment cavity (23) opened inside the driving block (6); a movable ring (25) is slidably connected between the inner walls of the adjustment cavity (23) near one side edge; a connecting rod (24) is rotatably connected to one side of the tool holder seat (7); one end of the connecting rod (24) slides and extends into the interior of the adjustment cavity (23); and the outer surface of one end of the connecting rod (24) is slidably connected between the inner walls of the adjustment cavity (23); and a first spring (29) is fixed between one end of the connecting rod (24) and one side of the movable ring (25).

4. The tool travel anti-collision structure for metal cutting machine tools according to claim 3, characterized in that: A screw rod (27) is provided on one side of the driving block (6), one end of the screw rod (27) is threadedly inserted into the interior of the adjusting cavity (23), and one end of the screw rod (27) is rotatably engaged between the inner walls of the movable ring (25), a scale bar (28) is provided on the outer surface of the screw rod (27), and a force sensor (26) is fixed to the inner wall of one side of the adjusting cavity (23).

5. The tool travel anti-collision structure for metal cutting machine tools according to claim 4, characterized in that: The truncation component comprises a rectangular key block (35), both sides of which are inclined near the top edge of the rectangular key block (35), a rectangular cavity (34) is provided inside the driving block (6), the rectangular key block (35) is slidably connected between the inner walls of the rectangular cavity (34), a key groove (36) is provided on the outer surface of the driving sleeve (12), the key groove (36) and the rectangular cavity (34) are communicated with each other, and the bottom of the rectangular key block (35) is engaged inside the key groove (36).

6. The tool travel anti-collision structure for metal cutting machine tools according to claim 5, characterized in that: A reciprocating cavity (30) is provided inside the driving block (6) and located above the rectangular cavity (34); an adjusting groove (20) is provided on the inner bottom surface of the buffer port (43); a wedge block (21) is fixed to the bottom of the tool holder seat (7); the bottom of the wedge block (21) is slidably connected between the inner walls on both sides of the adjusting groove (20); a lifting block (22) is slidably connected between the inner walls on both sides of the adjusting groove (20) near the bottom edge; one side of the lifting block (22) is inclined, and the inclined surface on the lifting block (22) is in contact with the inclined surface at the bottom of the wedge block (21); A lifting rod (32) is arranged inside the reciprocating cavity (30), the top of the lifting rod (32) slides through the inside of the adjusting groove (20) and is fixed at the bottom of the lifting block (22), the bottom of the lifting rod (32) slides through the inside of the rectangular cavity (34) and is fixed at the top of the rectangular key block (35), a fixing ring (31) is fixed on the outer surface of the lifting rod (32), the fixing ring (31) is slidably connected between the inner wall of the reciprocating cavity (30), and a second spring (33) is fixed between the bottom of the fixing ring (31) and the inner bottom surface of the reciprocating cavity (30).

7. The tool travel anti-collision structure for metal cutting machine tools according to claim 6, characterized in that: The positioning assembly comprises a rectangular limiting strip (45), a receiving groove (44) is provided inside the driving block (6), the rectangular limiting strip (45) is slidably connected inside the receiving groove (44), the opening of the receiving groove (44) is opposite to the limiting opening (4), a cylindrical cavity (37) is provided inside the driving block (6), a guide rod (38) is provided inside the cylindrical cavity (37), one end of the guide rod (38) slides through the inside of the receiving groove (44) and is fixed to one end of the rectangular limiting strip (45).

8. The tool travel anti-collision structure for metal cutting machine tools according to claim 7, characterized in that: The other end of the guide rod (38) slides through the interior of the rectangular cavity (34) and fits with the inclined surface of the rectangular key block (35). A fixing plate (40) is fixed to the outer surface of the guide rod (38). The fixing plate (40) is slidably connected between the inner walls of the cylindrical cavity (37). A third spring (39) is fixed between one side of the fixing plate (40) and the inner wall of one side of the cylindrical cavity (37).

9. The tool travel anti-collision structure for metal cutting machine tools according to claim 8, characterized in that: The cooling component includes a buffer cavity (16) opened inside the tool holder seat (7) near the top edge, a sealing plate (18) is fixed on one side of the tool holder seat (7), a sealing groove (42) is opened on the inner wall of one side of the buffer port (43), the buffer port (43) is slidably connected between the inner walls of the sealing groove (42), and two threaded tubes (19) are fixed on the inner wall of one side of the installation groove (14) near the top edge, and one end of the two threaded tubes (19) respectively penetrates into the interior of the buffer cavity (16).

10. The tool travel anti-collision structure for metal cutting machine tools according to claim 9, characterized in that: A butt joint tube (41) is fixed to the outer surface of one side of the driving block (6), one end of the butt joint tube (41) penetrates into the interior of the sealing groove (42), a flow channel (17) is opened inside the tool holder seat (7), one end of the flow channel (17) penetrates into the interior of the buffer cavity (16), and the other end of the flow channel (17) penetrates into one side of the sealing plate (18), and the opening of the flow channel (17) on one side of the sealing plate (18) is opposite to the opening of the butt joint tube (41).

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