Adjustable laser cutting table for precision hardware machining

Abstract

The invention relates to the technical field of hardware machining, in particular to an adjustable laser cutting table for precise hardware machining, which comprises a workbench and a laser cutter positioned on the workbench and used for laser cutting of a circular tube, a feeding mechanism for driving the circular tube to move is arranged on the workbench, and the feeding mechanism comprises a vertical frame erected on the workbench; a horizontal frame is slidably arranged on the vertical frame, and a motor for driving a round pipe is arranged on the horizontal frame. The adjustable laser cutting table for precision hardware machining is provided, the round pipe is clamped and fixed at multiple positions, the stability of the round pipe is further kept, and the cutting precision of the round pipe is improved; in addition, in the laser cutting process of the round pipe, as the interior of one end of the round pipe is blocked through the pull rod, sparks generated during cutting of the round pipe cannot be splashed to the outside along the interior of the round pipe, the working environment of workers is protected, and meanwhile damage to devices caused by splashing of the sparks is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hardware processing, in particular to an adjustable laser cutting table for precision hardware processing. Background Art

[0002] The laser cutting platform is an important component of the laser cutting equipment. A reasonable and effective cutting platform helps to make the entire cutting process more stable and the cutting quality higher. When the existing laser cutting table for precision hardware processing is used to cut round tubes, the sparks during cutting will splash outward along the inside of the round tube. The temperature of these splashing sparks is extremely high, which will not only affect the safety of the working environment, but also cause damage to the workpiece and the machine. Summary of the invention

[0003] The purpose of the present invention is to provide an adjustable laser cutting table for precision hardware processing, which further maintains the stability of the round tube and improves the accuracy of round tube cutting by clamping and fixing the round tube at multiple locations; in addition, during the laser cutting process of the round tube, since the inside of one end of the round tube is blocked by a pull rod, the sparks from the cutting of the round tube cannot splash along the inside of the round tube to the outside, thereby protecting the working environment of the staff and reducing the damage to the device caused by the splashing of sparks.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable laser cutting table for precision hardware processing, comprising a workbench and a laser cutter located on the workbench for laser cutting of round tubes, the workbench is provided with a feeding mechanism for driving the round tube to move, the feeding mechanism comprises a vertical frame standing on the workbench, a horizontal frame is slidably arranged on the vertical frame, a motor for driving the round tube is arranged on the horizontal frame, the workbench is provided with a first clamping mechanism for cooperating with the motor to drive the round tube to be positioned when cutting; the first clamping mechanism comprises a hair dryer located on the workbench, the hair dryer A first fixing frame is erected on one side, a through-ring is passed through the first fixing frame, an airbag a which expands after being inflated is installed in the middle part of the through-ring, an air outlet end of the hair dryer is connected with the airbag a, after the hair dryer is started, the air outlet end of the hair dryer sends wind into the interior of the airbag a, and the airbag a expands and squeezes the round tube passing through the through-ring, the scales arranged on the through-ring cooperate with the motor to accurately control the moving distance of the round tube, and at the same time cooperate with the expansion of the airbag a to wrap the outside of the round tube, so that the airbag a reduces the damage caused by squeezing the round tube while cleaning the outside of the round tube; A second clamping mechanism cooperating with the through-ring to stably cut the circular tube is arranged on one side of the hair dryer, the second clamping mechanism comprises a third fixing frame and a fourth fixing frame standing on the workbench, the fourth fixing frame is penetrated by a sleeve whose center is on the same axis as the center of the through-ring, a pull rod penetrating the fourth fixing frame is slidably arranged inside the sleeve, an airbag ring is arranged on the outside of the pull rod, a connecting pipe for air inlet and outlet is arranged at one end of the airbag ring, one end of the connecting pipe is connected to the air outlet end of the hair dryer; a part of the wind at the air outlet end of the hair dryer enters the airbag ring through the connecting pipe After the inside, the middle part of the airbag ring expands and will be squeezed against the inner wall of the circular tube, thereby cooperating with the airbag a and the motor to accurately position the circular tube and improve its cutting accuracy; after the connecting tube moves with the airbag ring, one end of the connecting tube fits with the inner wall of the sleeve and remains closed. Because one end of the sleeve is a stepped design, when one end of the connecting tube moves to the stepped position of the sleeve, one end of the connecting tube cancels the closure. At this time, the internal gas of the airbag ring is discharged, and the gas distributed by the airbag ring is blown to the cut circular tube, and the airbag ring is no longer inflated to cancel the squeezing state with the inner wall of the circular tube.

[0005] Preferably, the vertical frame is provided with an electric track a for automatic sliding of the horizontal frame.

[0006] Preferably, a movable seat is slidably disposed on the horizontal frame, and an electric track b for the movable seat to slide automatically is provided on the horizontal frame.

[0007] Preferably, the motor is fixed on the movable seat, and a chuck connected to one end of the round tube is installed at the output end of the motor.

[0008] Preferably, a second fixing frame is fixedly mounted on the workbench, and the hair dryer is fixedly mounted on the second fixing frame.

[0009] Preferably, the through-ring is fixedly penetrated on the first fixing frame, and the middle part of the through-ring is fixedly connected to the airbag a.

[0010] Preferably, a first air pipe is installed at the air outlet end of the hair dryer, one end of the first air pipe passes through the first fixing frame, and one end of the first air pipe passes through the first fixing frame and is connected to the airbag a.

[0011] Preferably, the outer sides of the pull rod and the sleeve are both provided with markings.

[0012] Preferably, the fourth fixing frame is located at one side of the third fixing frame, and the pull rod and the fourth fixing frame penetrate and extend into the interior of the sleeve.

[0013] Preferably, the middle part of the airbag ring is an airbag b that can expand after inflation, and a second air pipe is installed at the air outlet end of the hair dryer, one end of the second air pipe is connected to the connecting pipe, and a control valve is provided on the second air pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention adopts airbag b in the middle part of the airbag ring to expand and stabilize the round tube, and airbag a to expand and compress the round tube and the chuck, and fixes the round tube at multiple locations to further maintain the stability of the round tube and improve the accuracy of round tube cutting; in addition, during the laser cutting process of the round tube, since one end of the round tube is blocked by a pull rod, the sparks from the cutting of the round tube cannot splash along the inside of the round tube to the outside, thereby protecting the working environment of the staff and reducing the damage to the device caused by the splashing of sparks.

[0016] 2. After the airbag a is inflated, the present invention will squeeze the outer side of the round tube and completely wrap the outer side of the round tube. When the moving seat drives the motor to move, the motor drives the round tube to move through the chuck. Since the airbag a wraps the outer side of the round tube, when the round tube passes through the airbag a, the airbag a can clean the outer side of the round tube to prevent the dust on the outside of the round tube from affecting the laser cutting, thereby affecting the cutting accuracy of the round tube.

[0017] 3. After the laser cutting of the circular tube is completed, the pull rod is pulled, and the pull rod drives the airbag ring to slide inside the sleeve. At this time, the airbag ring squeezes the cut circular tube through the airbag b in the middle part. At this time, the airbag ring drives the cut circular tube to move from the inside of the sleeve. During the movement of the airbag ring, the airbag ring drives the connecting tube to move, so that the connection between the connecting tube and one end of the second gas pipe is cancelled. However, at this time, one end of the connecting tube is in contact with the inner wall of the sleeve, so the connecting tube is still in a closed state, and the gas inside the airbag b will not overflow. The connecting tube follows the airbag ring to move to the step of the sleeve. At this time, one end of the connecting tube does not Then it fits with the inner wall of the sleeve. At this time, the gas inside the airbag b will be discharged into the interior of the sleeve through the connecting tube. Since the cut round tube is still inside the sleeve at this time, the discharged gas can cool down the cut round tube inside the sleeve to a certain extent, so as to avoid the temperature of the round tube after laser cutting being too high, which is inconvenient for the staff to collect. After the cut round tube moves out of the sleeve with the airbag ring, the gas cools down the cut round tube, and the staff can collect it quickly, thereby improving the work efficiency of the round tube cutting and reducing the risk of scalding of the staff due to the high temperature of the cut round tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 The second schematic diagram of the overall structure of the present invention;

[0020] Figure 3 The third schematic diagram of the overall structure of the present invention;

[0021] Figure 4 It is a partial structural schematic diagram of the present invention;

[0022] Figure 5 is a partial cross-sectional view of a first clamping mechanism of the present invention;

[0023] Figure 6 The second schematic diagram of the partial structure of the present invention;

[0024] Figure 7 This is a partial cross-sectional view of the present invention;

[0025] Figure 8 It is the second partial cross-sectional view of the present invention;

[0026] Fig. 9 For the present invention Figure 8 Enlarged view of part a.

[0027] In the figure: 1. workbench; 2. feeding mechanism; 21. vertical frame; 22. horizontal frame; 23. movable seat; 24. motor; 3. first clamping mechanism; 31. blower; 32. first fixed frame; 33. second fixed frame; 34. through ring; 35. first air pipe; 36. air bag a; 4. second clamping mechanism; 41. third fixed frame; 42. fourth fixed frame; 43. pull rod; 44. sleeve; 45. air bag ring; 46. second air pipe; 47. connecting pipe; 5. laser cutter. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. 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.

[0029] The present invention provides an adjustable laser cutting table for precision hardware processing, comprising a workbench 1 and a laser cutter 5 located on the workbench 1 for laser cutting a round tube, the workbench 1 is provided with a feeding mechanism 2 for driving the round tube to move, the feeding mechanism 2 comprises a vertical frame 21 standing on the workbench 1, a horizontal frame 22 is slidably arranged on the vertical frame 21, a motor 24 for driving the round tube is arranged on the horizontal frame 22, a first clamping mechanism 3 for positioning when cooperating with the motor 24 to drive the round tube to be cut is arranged on the workbench 1; an electric track a for automatic sliding of the horizontal frame 22 is provided on the vertical frame 21, a moving seat 23 is slidably arranged on the horizontal frame 22, an electric track b for automatic sliding of the moving seat 23 is provided on the horizontal frame 22, the motor 24 is fixed on the moving seat 23, and a chuck connected to one end of the round tube is installed at the output end of the motor 24;

[0030] See also Figures 1 to 4 As shown, one end of the round tube is connected to the chuck on the motor 24. During the process of connecting the chuck and the round tube, the horizontal frame 22 can be moved on the vertical frame 21 to match the position of the round tube, which is convenient for the staff to connect the round tube and the chuck. At the same time, after the chuck and the round tube are connected, the motor 24 can be started. The output end of the motor 24 can drive the round tube to rotate through the chuck. At the same time, the moving seat 23 moves on the horizontal frame 22 to drive the round tube to move. Thereby, the round tube can be automatically driven to rotate and load. On the one hand, it reduces the operation of the staff and improves the work efficiency. On the other hand, the automated design can reduce the errors of manual operation and improve the cutting accuracy of the round tube.

[0031] The first clamping mechanism 3 includes a hair dryer 31 located on the workbench 1, a first fixing frame 32 is erected on one side of the hair dryer 31, a through ring 34 is passed through the first fixing frame 32, an air bag a36 which expands after being inflated is installed in the middle part of the through ring 34, the air outlet end of the hair dryer 31 is connected with the air bag a36, after the hair dryer 31 is started, the air outlet end of the hair dryer 31 sends wind into the interior of the air bag a36, and the air bag a36 expands and squeezes through the round tube of the through ring 34, and the scale set on the through ring 34 cooperates with the motor 24 to accurately control the moving distance of the round tube, and at the same time Cooperate with the airbag a36 to expand and wrap the outside of the round tube, and at the same time clean the outside of the round tube, the airbag a36 reduces the damage caused by squeezing the round tube; a second fixing frame 33 is fixedly installed on the workbench 1, and the hair dryer 31 is fixedly installed on the second fixing frame 33. The through-ring 34 is fixedly penetrated on the first fixing frame 32, and the middle part of the through-ring 34 is fixedly connected to the airbag a36. A first air delivery pipe 35 is installed at the air outlet end of the hair dryer 31, and one end of the first air delivery pipe 35 penetrates the first fixing frame 32, and one end of the first air delivery pipe 35 penetrates the first fixing frame 32 and is connected to the airbag a36;

[0032] See also Figures 2 to 5 As shown, when the round tube is connected to the chuck, the round tube is passed through the through ring 34, and then after the round tube is connected to the chuck, the hair dryer 31 is started, and the air outlet end of the hair dryer 31 transmits the gas to the inside of the first gas pipe 35, and then the first gas pipe 35 transmits the gas to the inside of the airbag a36. Since the airbag a36 is located in the middle part of the through ring 34, the airbag a36 will be squeezed with the outside of the round tube after it expands, and the outside of the round tube is completely wrapped. When the moving seat 23 drives the motor 24 to move, the motor 24 drives the round tube to move through the chuck. In the process, since the airbag a36 wraps the outside of the round tube, when the round tube passes through the airbag a36, the airbag a36 can clean the outside of the round tube to prevent the dust on the outside of the round tube from affecting the laser cutting, thereby affecting the cutting accuracy of the round tube.

[0033] In addition, the airbag a36 is expanded to squeeze the round tube, so that the chuck can be used to clamp and fix the round tube at multiple locations, further ensuring the stability of the round tube during cutting, and avoiding the round tube being only clamped by the chuck, resulting in deviation during cutting, thereby affecting the cutting quality of the round tube; in addition, when the round tube is driven by the chuck to a certain position for laser cutting by the laser cutter 5, the scale on the outside of the penetrating ring 34 can assist the staff in adjusting the cutting position of the round tube, further improving the quality of laser cutting of the round tube;

[0034] In addition, the method of wrapping, squeezing and clamping the round tube with the airbag a36 can be distinguished from the method of clamping the round tube with mechanical parts. Since the round tube is hollow in design, the clamping of the mechanical parts can easily cause damage to the round tube, for example, the squeezing force may cause the round tube to collapse.

[0035] A second clamping mechanism 4 is provided on one side of the hair dryer 31 to cooperate with the through-ring 34 for stable cutting of the round tube. The second clamping mechanism 4 includes a third fixing frame 41 and a fourth fixing frame 42 standing on the workbench 1. A sleeve 44 is penetrated by the fourth fixing frame 42, and the center of the sleeve 44 is on the same axis as the center of the through-ring 34. A pull rod 43 is slidably provided inside the sleeve 44 and penetrates the fourth fixing frame 42. An airbag ring 45 is provided on the outside of the pull rod 43. A connecting pipe 47 for air inlet and outlet is provided at one end of the airbag ring 45, and one end of the connecting pipe 47 is connected to the air outlet end of the hair dryer 31; after a part of the wind from the air outlet end of the hair dryer 31 enters the interior of the airbag ring 45 through the connecting pipe 47, the middle part of the airbag ring 45 expands and will be squeezed against the inner wall of the round tube, thereby cooperating with the airbag a36 and the motor 24 to control the multi-precision positioning of the round tube to improve its cutting accuracy; after the connecting pipe 47 moves with the airbag ring 45, the connecting pipe 47 One end of the connecting pipe 47 is fitted with the inner wall of the sleeve 44 to maintain a closed state. Because one end of the sleeve 44 is a stepped design, when one end of the connecting pipe 47 moves to the stepped position of the sleeve 44, one end of the connecting pipe 47 cancels the closure, and the gas inside the airbag ring 45 is discharged. The gas distributed by the airbag ring 45 blows to the cut circular tube, and the airbag ring 45 is no longer in the state of being squeezed with the inner wall of the circular tube when it is expanded; the outer side of the pull rod 43 and the sleeve 44 are both provided with markings, the fourth fixing frame 42 is located on one side of the third fixing frame 41, and the pull rod 43 and the fourth fixing frame 42 are penetrated and extended into the interior of the sleeve 44, and the middle part of the airbag ring 45 is an airbag b that can be expanded after inflation; the air outlet end of the hair dryer 31 is installed with a second air supply pipe 46, one end of the second air supply pipe 46 is connected to the connecting pipe 47, and a control valve is provided on the second air supply pipe 46; the size of the penetration ring 34 and the sleeve 44 can be selected according to the size of the circular tube; See also Figures 4 to 9As shown, during the process of the round tube being driven to a certain position by the chuck for laser cutting, one end of the round tube first extends into the interior of the sleeve 44. At this time, the valve on the second air pipe 46 is not opened, so the gas at the air outlet end of the hair dryer 31 is only transmitted to the interior of the airbag a36 through the first air pipe 35. When the round tube moves to a certain position for laser cutting, the valve on the second air pipe 46 is opened, and the gas at the air outlet end of the hair dryer 31 will enter the second air pipe 46, and the gas enters the connecting pipe 47 through the second air pipe 46, and then enters the interior of the airbag b in the middle of the airbag ring 45 through the connecting pipe 47, thereby expanding the airbag b in the middle of the airbag ring 45. After the round tube 44 is inside, the pull rod 43 drives the airbag ring 45 to extend into the interior of the circular tube. Therefore, the airbag b in the middle of the airbag ring 45 expands and squeezes the inner wall of the circular tube, and cooperates with the sleeve 44 to squeeze the circular tube stably. Therefore, the airbag b in the middle of the airbag ring 45 is used to expand and stabilize the circular tube, and the airbag a36 is expanded to press the circular tube and the chuck. The circular tube is clamped and fixed at multiple locations to further maintain the stability of the circular tube and improve the accuracy of circular tube cutting. In addition, during the laser cutting process of the circular tube, since one end of the circular tube is blocked by the pull rod 43, the sparks from the cutting of the circular tube cannot splash along the inside of the circular tube to the outside, thereby protecting the working environment of the staff and reducing the damage to the device caused by spark splashing.

[0037] In addition, the laser cutting position of the round tube by the laser cutter 5 is located in the middle position of the sleeve 44 and the through ring 34, so that the two parts of the round tube after cutting can be kept stable during the cutting process. In addition, the speed of the motor 24 driving the round tube to rotate through the chuck can be adjusted according to the actual situation to avoid the round tube rotating too fast or too slow. When the round tube is about to be completely cut, although the uncut part of the round tube is small at this time, because the material of the round tube is metal, the squeezing force of the air bag b in the middle part of the first air delivery pipe 35 on the round tube will not affect the rotation of the round tube, and thus will not affect the laser cutting of the round tube.

[0038] In addition, markings are provided on the outside of the pull rod 43 and the sleeve 44, which can also cooperate with the scale on the outside of the ring 34 to assist the staff in adjusting the laser cutting position of the circular tube; after the laser cutting of the circular tube is completed, the pull rod 43 is pulled, and the pull rod 43 drives the airbag ring 45 to slide inside the sleeve 44. At this time, the airbag ring 45 squeezes the cut circular tube through the airbag b in the middle part. At this time, the airbag ring 45 drives the cut circular tube to move from the inside of the sleeve 44. During the movement of the airbag ring 45, the airbag ring 45 drives the connecting tube 47 to move, so that the connecting tube 47 is disconnected from one end of the second air supply pipe 46. However, at this time, one end of the connecting tube 47 is in contact with the inner wall of the sleeve 44, so the connecting tube 47 is still in a closed state, and the air inside the airbag b The body will not overflow, and the connecting tube 47 follows the airbag ring 45 to move to the step of the sleeve 44. At this time, one end of the connecting tube 47 is no longer in contact with the inner wall of the sleeve 44. At this time, the gas inside the airbag b will be discharged to the inside of the sleeve 44 through the connecting tube 47. Since the cut round tube is still inside the sleeve 44 at this time, the discharged gas can cool down the cut round tube inside the sleeve 44 to a certain extent, thereby avoiding the round tube temperature being too high after laser cutting, which is inconvenient for the staff to collect. After the cut round tube follows the airbag ring 45 to move out of the sleeve 44, the gas cools down the cut round tube, and the staff can collect it quickly, thereby improving the work efficiency of the round tube cutting and reducing the risk of scalding of the staff due to the high temperature of the cut round tube.

[0039] Working principle: Connect one end of the round tube to the chuck on the motor 24. During the connection process of the chuck and the round tube, the horizontal frame 22 can be moved on the vertical frame 21 to match the position of the round tube, which is convenient for the staff to connect the round tube to the chuck. After the chuck and the round tube are connected, the motor 24 can be started. The output end of the motor 24 can drive the round tube to rotate through the chuck. At the same time, the moving seat 23 moves on the horizontal frame 22 to drive the round tube to move.

[0040] When the round tube is connected to the chuck, the round tube is passed through the through ring 34. After the round tube is connected to the chuck, the hair dryer 31 is started. The air outlet end of the hair dryer 31 transmits the gas to the inside of the first gas pipe 35. Then the first gas pipe 35 transmits the gas to the inside of the airbag a36. Since the airbag a36 is located in the middle part of the through ring 34, the airbag a36 will be squeezed with the outside of the round tube after it expands, and the outside of the round tube will be completely wrapped. When the moving seat 23 drives the motor 24 to move, the motor 24 drives the round tube to move through the chuck. Since the airbag a36 wraps the outside of the round tube, when the round tube passes through the airbag a36, the airbag a36 can clean the outside of the round tube.

[0041] When the round tube is driven to a certain position by the chuck for laser cutting, one end of the round tube first extends into the interior of the sleeve 44. At this time, the valve on the second air pipe 46 is not opened, so the gas at the outlet end of the hair dryer 31 is only transmitted to the interior of the air bag a36 through the first air pipe 35. When the round tube is moved to a certain position for laser cutting, the valve on the second air pipe 46 is opened, and the gas at the outlet end of the hair dryer 31 will enter the second air pipe 46, and the gas will enter the connecting pipe 47 through the second air pipe 46, and the gas will enter the connecting pipe 47 through the connecting pipe 47. The airbag b in the middle of the airbag ring 45 is expanded. Since the round tube is inserted into the sleeve 44, the pull rod 43 drives the airbag ring 45 to extend into the round tube. Therefore, the airbag b in the middle of the airbag ring 45 expands and squeezes the inner wall of the round tube. The sleeve 44 can squeeze the round tube to stabilize it. Therefore, the airbag b in the middle of the airbag ring 45 is used to expand and stabilize the round tube, and the airbag a36 is used to expand and compress the round tube and the chuck. The round tube is clamped and fixed at multiple locations to further maintain the stability of the round tube and improve the accuracy of round tube cutting.

[0042] After the laser cutting of the round tube is completed, the pull rod 43 is pulled, and the pull rod 43 drives the airbag ring 45 to slide inside the sleeve 44. At this time, the airbag ring 45 squeezes the cut round tube through the airbag b in the middle part. At this time, the airbag ring 45 drives the cut round tube to move from the inside of the sleeve 44. During the movement of the airbag ring 45, the airbag ring 45 drives the connecting tube 47 to move, so that the connection between the connecting tube 47 and one end of the second gas pipe 46 is cancelled. However, at this time, one end of the connecting tube 47 is in contact with the inner wall of the sleeve 44, so the connecting tube 47 is still in a closed state, and the gas inside the airbag b will not overflow. Following the airbag ring 45, it moves to the step of the sleeve 44. At this time, one end of the connecting tube 47 is no longer in contact with the inner wall of the sleeve 44. At this time, the gas inside the airbag b will be discharged to the inside of the sleeve 44 through the connecting tube 47. Since the cut round tube is still inside the sleeve 44 at this time, the discharged gas can cool down the cut round tube inside the sleeve 44 to a certain extent, so as to avoid the temperature of the laser cut round tube being too high, which is inconvenient for the staff to collect. After the cut round tube follows the airbag ring 45 and moves out of the sleeve 44, the gas cools down the cut round tube, and the staff can collect it quickly.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable laser cutting table for precision hardware processing, comprising a workbench (1) and a laser cutter (5) located on the workbench (1) for laser cutting a round tube, characterized in that: The workbench (1) is provided with a feeding mechanism (2) for driving the round tube to move, the feeding mechanism (2) comprises a vertical frame (21) standing on the workbench (1), a horizontal frame (22) sliding on the vertical frame (21), a motor (24) for driving the round tube being provided on the horizontal frame (22), and a first clamping mechanism (3) for positioning when cooperating with the motor (24) to drive the round tube to be cut is provided on the workbench (1); The first clamping mechanism (3) comprises a hair dryer (31) located on the workbench (1), a first fixing frame (32) is erected on one side of the hair dryer (31), a through-ring (34) is passed through the first fixing frame (32), a middle part of the through-ring (34) is provided with an airbag a (36) which expands after being inflated, an air outlet end of the hair dryer (31) is connected with the airbag a (36), after the hair dryer (31) is started, the air outlet end of the hair dryer (31) sends wind into the interior of the airbag a (36), and the airbag a (36) expands and squeezes the circular tube passing through the through-ring (34), the scale arranged on the through-ring (34) cooperates with the motor (24) to accurately control the moving distance of the circular tube, and at the same time cooperates with the airbag a (36) to expand and wrap the outer side of the circular tube, so that the airbag a (36) reduces the damage caused by squeezing the circular tube while cleaning the outer side of the circular tube; A second clamping mechanism (4) is provided on one side of the hair dryer (31) for cooperating with the through-ring (34) to stably cut the round tube. The second clamping mechanism (4) includes a third fixed frame (41) and a fourth fixed frame (42) standing on the workbench (1). A sleeve (44) is passed through the fourth fixed frame (42) and the center of the circle is on the same axis as the center of the circle of the through-ring (34). A pull rod (43) passing through the fourth fixed frame (42) is slidably provided inside the sleeve (44). An air bag ring (45) is provided on the outside of the pull rod (43). A connecting pipe (47) for air inlet and outlet is provided at one end of the air bag ring (45). One end of the connecting pipe (47) is connected to the air outlet end of the hair dryer (31); part of the wind at the air outlet end of the hair dryer (31) passes through the connecting pipe. After (47) enters the interior of the airbag ring (45), the middle part of the airbag ring (45) expands and squeezes against the inner wall of the circular tube, thereby cooperating with the airbag a (36) and the motor (24) to precisely position the circular tube and improve its cutting accuracy; after the connecting tube (47) moves with the airbag ring (45), one end of the connecting tube (47) fits against the inner wall of the sleeve (44) and remains closed. Because one end of the sleeve (44) is a stepped design, when one end of the connecting tube (47) moves to the stepped position of the sleeve (44), one end of the connecting tube (47) cancels the closure. At this time, the gas inside the airbag ring (45) is discharged, and the gas distributed by the airbag ring (45) blows toward the cut circular tube, and the airbag ring (45) is no longer in a state of expansion to cancel the squeezing state with the inner wall of the circular tube.

2. The adjustable laser cutting table for precision hardware processing according to claim 1 is characterized in that: The vertical frame (21) is provided with an electric track a for the automatic sliding of the horizontal frame (22).

3. The adjustable laser cutting table for precision hardware processing according to claim 1, characterized in that: A moving seat (23) is slidably mounted on the horizontal frame (22), and an electric track b for the moving seat (23) to slide automatically is provided on the horizontal frame (22).

4. The adjustable laser cutting table for precision hardware processing according to claim 3 is characterized in that: The motor (24) is fixed on the moving seat (23), and a clamp connected to one end of the round tube is installed at the output end of the motor (24).

5. The adjustable laser cutting table for precision hardware processing according to claim 1, characterized in that: A second fixing frame (33) is fixedly mounted on the workbench (1), and the hair dryer (31) is fixedly mounted on the second fixing frame (33).

6. The adjustable laser cutting table for precision hardware processing according to claim 1, characterized in that: The through-ring (34) is fixedly penetrated on the first fixing frame (32), and the middle part of the through-ring (34) is fixedly connected to the airbag a (36).

7. The adjustable laser cutting table for precision hardware processing according to claim 1, characterized in that: A first air delivery pipe (35) is installed at the air outlet end of the hair dryer (31), one end of the first air delivery pipe (35) passes through the first fixing frame (32), and one end of the first air delivery pipe (35) passing through the first fixing frame (32) is connected to the air bag a (36).

8. The adjustable laser cutting table for precision hardware processing according to claim 1, characterized in that: The outer sides of the pull rod (43) and the sleeve (44) are both provided with markings.

9. The adjustable laser cutting table for precision hardware processing according to claim 1, characterized in that: The fourth fixing frame (42) is located on one side of the third fixing frame (41), and the pull rod (43) and the fourth fixing frame (42) penetrate each other and extend into the interior of the sleeve (44).

10. The adjustable laser cutting table for precision hardware processing according to claim 1, characterized in that: The middle part of the airbag ring (45) is an airbag b that can expand after being inflated. A second air pipe (46) is installed at the air outlet end of the hair dryer (31). One end of the second air pipe (46) is connected to a connecting pipe (47), and a control valve is provided on the second air pipe (46).

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