Cutting device for allowance of air brick steel shell

Abstract

The utility model belongs to the technical field of air brick steel shell allowance cutting, and discloses an air brick steel shell allowance cutting device which is characterized in that an indexing rotating mechanism is fixedly arranged in the middle of the interior of an indexing rotating frame; the rotating disc is fixedly arranged in the center of the upper portion of the indexing rotating frame, and the four pneumatic clamping mechanisms are symmetrically arranged in the circumferential direction of the rotating disc in a cross shape and used for fixedly clamping a steel shell and a breather pipe; the L-shaped bracket is fixedly arranged at the rear end of the right side of the bracket; the lifting displacement mechanism is fixedly arranged on the front side of the left end of the L-shaped support. The stepping motor is fixedly arranged on the lower portion of the middle of the front side of the lifting displacement mechanism, and the cutting cutterhead is fixedly arranged at the lower end of a power output shaft of the stepping motor. The steel shell allowance cutting device has the advantages that the labor intensity of cutting the steel shell allowance is reduced, the working efficiency of cutting the steel shell allowance is improved, and the upper end face of a steel shell is flush and level with the upper end face of an air brick.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting the surplus of the steel shell of a porous plug, and particularly relates to a cutting device for the surplus of the steel shell of a porous plug. Background Art

[0002] The porous plug is an indispensable functional refractory element in the secondary refining process. Due to its good air permeability and high fire resistance, the porous plug can effectively purify the impurities in molten steel and improve the smelting quality of molten steel. The structure of the porous plug mainly includes a porous plug core, a steel shell and a ventilation pipe. The porous plug core is a cast conical shape, and annular uniformly distributed ventilation slits are cast in the center of the porous plug core. The steel shell is bonded and sleeved outside the porous plug core by refractory mud, and at the same time, the ventilation pipe is welded at the center position of the bottom of the steel shell to convey inert gas into the refining furnace through the ventilation slits of the porous plug core, thereby improving the smelting quality of molten steel.

[0003] In the prior art, the steel shell is rolled into a hollow frustum shape by a rolling machine. In order to ensure that the steel shell can completely wrap the porous plug core, a surplus needs to be left when rolling the steel shell, that is, the height of the steel shell is greater than the height of the porous plug core. After the steel shell is sleeved, the surplus of the steel shell above the porous plug core needs to be cut off manually. At present, the surplus of the steel shell is cut off by manually holding a cutting knife and cutting it around the circumference of the steel shell, so that the upper part of the porous plug core is flush with the upper part of the steel shell. The method of manually cutting the surplus of the steel shell has high labor intensity and low cutting efficiency. At the same time, it is very difficult to ensure that the upper end face of the steel shell is flush with the upper end face of the porous plug, and the flatness of the cut end face is difficult to guarantee. Based on the above technical problems in the prior art, the inventor has developed a cutting device for the surplus of the steel shell of a porous plug, which can well solve the above technical problems existing in the prior art. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a cutting device for the surplus of the steel shell of a porous plug, the structure design of which is simple, scientific and reasonable, and can realize automatic and precise cutting of the surplus of the steel shell; the utility model solves the problems of high labor intensity and low cutting efficiency of the method of manually cutting the surplus of the steel shell; at the same time, it also solves the problems that it is very difficult to ensure that the upper end face of the steel shell is flush with the upper end face of the porous plug and the flatness of the cut end face is difficult to guarantee by the method of manually cutting the surplus of the steel shell.

[0005] The technical solution adopted by the utility model is as follows: A cutting device for the surplus of the steel shell of a permeable brick, which includes a bracket, a indexing rotary frame, and an indexing rotary mechanism; an indexing rotary frame is fixedly arranged at the upper left position of the bracket, and the indexing rotary frame is in a hollow square shape; the indexing rotary mechanism is fixedly arranged at the middle position inside the indexing rotary frame, and the indexing rotary mechanism is used to provide angular rotation power to the rotary disk; the rotary disk is fixedly arranged at the center of the upper part of the indexing rotary frame, and four pneumatic clamping mechanisms are arranged in a cross symmetry around the circumference of the rotary disk, and the pneumatic clamping mechanisms are used to fixedly clamp the steel shell and the ventilation pipe; a pneumatic slip ring support cylinder is vertically fixedly arranged at the center of the rotary disk, and a pneumatic slip ring is fixedly arranged at the upper part of the pneumatic slip ring support cylinder, and the pneumatic slip ring is used to ensure that the high-pressure gas conveyed to the pneumatic clamping mechanism is not interfered by rotation when the rotary disk rotates; an L-shaped bracket is fixedly arranged at the rear end position on the right side of the bracket, and the L-shaped bracket is used to fixedly support the lifting displacement mechanism; the lifting displacement mechanism is fixedly arranged at the front side position at the left end of the L-shaped bracket, and the lifting displacement mechanism and the pneumatic clamping mechanism are arranged in an up-and-down correspondence, and the lifting displacement mechanism is used to provide displacement movement of the up-and-down and front-and-back positions for the stepping motor and the cutting tool disk; the stepping motor is fixedly arranged at the lower middle position at the front side of the lifting displacement mechanism, and the cutting tool disk is fixedly arranged at the lower end of the power output shaft of the stepping motor; a ventilation pipe is welded to the bottom of the steel shell, and the refractory brick core of the permeable brick is adhesively sleeved in the steel shell through refractory mud, and the surplus of the steel shell is the part where the steel shell is higher than the refractory brick core of the permeable brick, and the steel shell is centered and clamped on the pneumatic clamping mechanism.

[0006] The indexing rotary mechanism includes a motor, the motor is fixedly arranged at the front side position of the fixed plate, the fixed plate is longitudinally fixedly arranged at a position close to the left side inside the indexing rotary frame, the power output shaft of the motor passes through the fixed plate body and extends to the left side position of the fixed plate, and a driving wheel is fixedly arranged on the power output shaft of the motor; the indexing input shaft is arranged at the rear side position of the indexer, and the indexing input shaft passes through the indexer body and extends to the left and right sides of the indexer; a driven wheel is fixedly arranged at the left end position of the indexing input shaft, the driven wheel and the driving wheel are arranged in a front-and-back correspondence, and a transmission belt is installed on the driving wheel and the driven wheel; the indexing output shaft is arranged at the middle position of the indexer, the indexing output shaft passes through the upper part of the indexer, the slewing bearing and the indexing rotary frame and extends to the center of the rotary disk, the slewing bearing is fixedly arranged at the center position of the upper part of the indexer, and the upper end of the indexing output shaft is fixedly connected to the bottom center of the rotary disk.

[0007] The motor is fixedly connected to the PLC control module through a signal transmission line, and the PLC control module is used to control the automatic opening and closing of the motor.

[0008] The rotary disk includes a rotary disk body, and limiting holes are symmetrically arranged in a cross shape on the upper part of the rotary disk body, and the diameter of the limiting holes is larger than the diameter of the ventilation pipe.

[0009] The pneumatic clamping mechanism includes a fixing plate fixedly arranged on the rotating disk. A square hole is formed in the center of the fixing plate. A fixed clamping block is fixedly arranged on the fixing plate facing the center of the rotating disk. A sliding clamping block is fixedly arranged at the corresponding outer position of the fixed clamping block. The sliding clamping block is fixedly connected to the upper part of the fixing plate near the outer side. An installation plate is fixedly arranged at the outer edge position of the upper part of the fixing plate. A cylinder is arranged at the middle position on the outer side of the installation plate. The telescopic rod of the cylinder passes through the installation plate body and is fixedly connected to the middle position on the outer side of the sliding clamping block. V-shaped grooves are symmetrically formed in the middle positions on the inner sides of the fixed clamping block and the sliding clamping block. Sliding grooves are symmetrically formed on both sides of the bottom of the sliding clamping block. Slide rails are fixedly arranged at both sides of the fixing plate. The sliding grooves are installed in cooperation with the slide rails, and the sliding clamping block can move through the cooperation of the sliding grooves and the slide rails.

[0010] The center of the square hole formed in the center of the fixing plate is concentric with the limiting hole, and the V-shaped grooves arranged on the inner sides of the fixed clamping block and the sliding clamping block are arranged through from top to bottom.

[0011] The sliding grooves are recessed trapezoidal shapes, and the slide rails are protruding trapezoidal shapes. The size of the sliding grooves is larger than that of the slide rails.

[0012] The four cylinders are respectively fixedly communicated with the four air holes at the bottom of the pneumatic slip ring through four branch air pipes. The upper part of the pneumatic slip ring is fixedly communicated with the electromagnetic valve through four air pipes. The electromagnetic valve is fixedly connected to the PLC control module through a signal transmission line. The PLC control module is used to automatically control the opening and closing of the electromagnetic valve, so as to automatically control the centering and clamping actions of the four pneumatic clamping mechanisms.

[0013] The lifting displacement mechanism includes a linear module 1 fixedly arranged at the front side position of the left end of the L-shaped bracket. The threaded hole of the vertical slider is installed in cooperation with the lead screw of the linear module 1. The linear module 2 is longitudinally fixedly arranged on the front side of the vertical slider. The threaded hole of the horizontal slider is installed in cooperation with the lead screw of the linear module 2.

[0014] The stepping motor is fixedly arranged at the bottom position of the horizontal slider of the linear module 2. The stepping motor is fixedly connected to the PLC control module through a signal transmission line. The PLC control module is used to automatically control the opening and closing of the stepping motor.

[0015] The servo motors of the linear module 1 and the linear module 2 are fixedly connected to the PLC control module through signal transmission lines.

[0016] The steel shell is centered and clamped at the middle position between the fixed clamping block and the sliding clamping block, and the ventilation pipe is inserted into the limiting hole on the rotating disk body.

[0017] The usage process of this cutting device for the steel shell allowance of the breathable brick is as follows: First, for the clamping action of the pneumatic clamping mechanism: When the rotating disk is in the initial position, the operator places the assembled core of the breathable brick, the steel shell, and the ventilation pipe (breathable brick) at the center of the fixed clamping block and the sliding clamping block of the pneumatic clamping mechanism. At the same time, insert the ventilation pipe into the limiting hole to make the core of the breathable brick, the steel shell, and the ventilation pipe (breathable brick) vertically perpendicular. The core of the breathable brick, the steel shell, and the ventilation pipe are placed in all four pneumatic clamping mechanisms. Finally, click the control key of the pneumatic clamping mechanism on the interactive screen, and the PLC control module transmits an opening control instruction to the solenoid valve. The cylinders of the four pneumatic clamping mechanisms start to act, pushing the telescopic rods to extend. Driven by the extension action of the telescopic rods, the sliding clamping block moves towards the position of the fixed clamping block through the cooperation of the sliding groove and the slide rail until the steel shell is centered and clamped. Second, cutting the steel shell allowance of the breathable brick: After the steel shell is centered and clamped, the operator clicks the indexing rotation key of the rotating disk on the interactive interface, and the PLC control module sends a start control instruction to the motor of the indexing rotation mechanism. The rotation of the motor drives the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate through the transmission belt. Under the rotation action of the driven wheel, power is input into the axial indexing device through the indexing device. At this time, the PLC control module controls the indexing device to rotate 90 degrees. At the same time, the power of the output shaft of the indexing device rotating 90 degrees is transmitted to the rotating disk through the slewing bearing, realizing the rotation of the rotating disk by 90 degrees. At this time, the pneumatic clamping mechanism in the initial position rotates to the lower position of the linear module two, and then the rotating disk automatically stops rotating; Subsequently, the PLC control module sends a start control instruction to the stepping motor, and the stepping motor drives the cutting tool disc to rotate at high speed. At the same time, the PLC control module sends a start control instruction to the linear module one of the lifting displacement mechanism (according to the height between the cutting tool disc and the rotating disk, plus the depth parameter of the limiting hole minus the height of the ventilation pipe and the core of the breathable brick, that is, the steel shell allowance that needs to be cut from the steel shell, and at the same time, it is the distance for the linear module one to move downward), so that the linear module one drives the vertical slider to move downward until it reaches the corresponding position at the top of the core of the breathable brick. At the same time, the linear module two drives the horizontal slider to drive the cutting tool disc to move from the initial position (the middle position of the linear module two is the initial position) to the position of the linear module one, thereby cutting off the steel shell allowance of the steel shell. After the cutting action is completed, the cutting tool disc returns to the initial position. The above process is the cutting process of the steel shell allowance of the breathable brick.

[0018] The beneficial effects of the present utility model: Through the settings of the indexing rotation mechanism, the rotating disk, the pneumatic clamping mechanism, and the lifting displacement mechanism, and under the automatic control of the PLC control module, the labor intensity of cutting the steel shell allowance is reduced, the working efficiency of cutting the steel shell allowance is improved, and the upper end face of the steel shell is flush and flat with the upper end face of the breathable brick. Description of the Drawings

[0019] Figure 1It is a schematic structural diagram of the utility model;

[0020] Figure 2 For this utility model Figure 1 A sectional view taken along the A-A direction;

[0021] Figure 3 It is a schematic structural diagram of the pneumatic clamping mechanism of the utility model;

[0022] Markings in the figure: 1. Bracket, 2. Indexing rotary frame, 3. Indexing rotary mechanism, 31. Motor, 32. Fixed plate, 33. Driving wheel, 34. Transmission belt, 35. Input shaft of the indexer, 36. Driven wheel, 37. Output shaft of the indexer, 38. Indexer, 39. Slewing bearing, 4. Rotary disk, 41. Rotary disk body, 42. Limit hole, 5. Pneumatic clamping mechanism, 51. Fixed plate, 52. Fixed clamping block, 53. Sliding clamping block, 54. Mounting plate, 55. Cylinder, 56. Telescopic rod, 57. V-shaped groove, 58. Sliding groove, 59. Slide rail, 6. Pneumatic slip ring support cylinder, 7. Pneumatic slip ring, 8. L-shaped bracket, 9. Lifting displacement mechanism, 91. Linear module 1, 92. Vertical slider, 93. Linear module 2, 94. Horizontal slider, 10. Stepper motor, 11. Cutting tool disc, 12. Core of the breathable brick, 13. Steel shell, 14. Remainder of the steel shell, 15. Vent pipe. Specific embodiments

[0023] The following further elaborates on the specific embodiments of the utility model in conjunction with the attached drawings.

[0024] The utility model provides a cutting device for the remainder of the steel shell of a breathable brick:

[0025] As Figure 1As shown in Fig. 1 or 2, the indexing rotation mechanism 3 is used to provide angular rotation power to the rotating disk 4. The indexing rotation mechanism 3 includes a motor 31, which is fixedly arranged at the front side position of the fixed plate 32. The fixed plate 32 is longitudinally fixedly arranged inside the indexing rotation frame 2 near the left side position. The power output shaft of the motor 31 passes through the body of the fixed plate 32 and extends to the left side position of the fixed plate 32. The driving wheel 33 is fixedly arranged on the power output shaft of the motor 31. The indexing input shaft 35 is arranged at the rear side position of the indexer 38. The indexing input shaft 35 passes through the body of the indexer 38 and extends to the left and right sides of the indexer 38. The driven wheel 36 is fixedly arranged at the left end position of the indexing input shaft 35. The driven wheel 36 and the driving wheel 33 are arranged in a front-back corresponding manner. The transmission belt 34 is installed on the driving wheel 33 and the driven wheel 36. The indexing output shaft 37 is arranged at the middle position of the indexer 38. The indexing output shaft 37 passes through the upper part of the indexer 38, the slewing bearing 39 and the indexing rotation frame 2 and extends to the center of the rotating disk 4. The slewing bearing 39 is fixedly arranged at the upper center position of the indexer 38. The upper end of the indexing output shaft 37 is fixedly connected to the bottom center of the rotating disk 4. Through the above settings of the motor 31, the driving wheel 33, the transmission belt 34, the indexing input shaft 35, the driven wheel 36, the indexing output shaft 37, the indexer 38 and the slewing bearing 39, under the control of the control program of the PLC control module, the intermittent rotation action of the rotating disk 4 with a rotation angle of 90 degrees is realized. At the same time, after the steel shell margin 14 of the steel shell 13 to be cut is cut, the rotating disk 4 is automatically returned to the initial position.

[0026] As Figure 1 or 2 shows, the pneumatic slip ring support cylinder 6 is vertically fixedly arranged at the center of the rotating disk 4. The pneumatic slip ring 7 is fixedly arranged at the upper part of the pneumatic slip ring support cylinder 6. The pneumatic slip ring 7 is used to prevent the high-pressure gas conveyed to the pneumatic clamping mechanism 5 from being rotationally interfered when the rotating disk 4 rotates. Through the above setting of the pneumatic slip ring 7, on the one hand, when the rotating disk 4 rotates, the bottom of the pneumatic slip ring 7 can rotate along with the rotation of the rotating disk 4, playing a role in preventing the conveying air pipe from being wound and interfered. On the other hand, it plays a role in regularizing the air pipe, making the air pipe connected to the pneumatic clamping mechanism 5 more tidy.

[0027] As Figure 1As shown in the figure, the lifting displacement mechanism 9 is fixedly arranged at the front side position of the left end of the L-shaped bracket 8. The lifting displacement mechanism 9 and the pneumatic clamping mechanism 5 are arranged corresponding to each other vertically. The lifting displacement mechanism 9 is used to provide displacement movement of the up-and-down and front-and-back positions for the stepping motor 10 and the cutting tool disc 11. The lifting displacement mechanism 9 includes a linear module 91. The linear module 91 is fixedly arranged at the front side position of the left end of the L-shaped bracket 8. The threaded hole of the vertical slider 92 is fitted and installed on the lead screw of the linear module 91. The linear module 93 is longitudinally fixedly arranged on the front side surface of the vertical slider 92. The threaded hole of the horizontal slider 94 is fitted and installed on the lead screw of the linear module 93. Through the settings of the linear module 91, the vertical slider 92, the linear module 93 and the horizontal slider 94, and with the cooperation of the control program of the PLC control module, on the one hand, the cutting tool disc 11 can be accurately positioned at the position of the steel shell margin 14 of the steel shell 13, achieving the function of pneumatically and accurately positioning the cutting margin; on the other hand, the accurate vertical and horizontal positions of the cutting tool disc 11 are realized, providing the necessary conditions for cutting the steel shell margin 14 of the steel shell 13.

[0028] As Figure 1 shown in the figure, the stepping motor 10 is fixedly arranged at the lower middle position on the front side of the lifting displacement mechanism 9. The cutting tool disc 11 is fixedly arranged at the lower end of the power output shaft of the stepping motor 10. Through the setting of the stepping motor 10, the power for rotary cutting is provided for the cutting tool disc 11.

[0029] As Figure 1 、 2 、3 shown, the pneumatic clamping mechanism 5 includes a fixing plate 51. The fixing plate 51 is fixedly arranged on the rotary disk 4. A square hole is opened at the center of the fixing plate 51. The fixed clamping block 52 is fixedly arranged on the fixing plate 51 facing the center direction of the rotary disk 4. The sliding clamping block 53 is fixedly arranged at the corresponding outer position of the fixed clamping block 52. The sliding clamping block 53 is fixedly connected to the upper part of the fixing plate 51 near the outer side. The mounting plate 54 is fixedly arranged at the outer edge position of the upper part of the fixing plate 51. The air cylinder 55 is arranged at the middle position on the outer side of the mounting plate 54. The telescopic rod 56 of the air cylinder 55 passes through the main body of the mounting plate 54 and is fixedly connected to the middle position on the outer side of the sliding clamping block 53. V-shaped grooves 57 are symmetrically opened at the middle positions on the inner sides of the fixed clamping block 52 and the sliding clamping block 53. Sliding grooves 58 are symmetrically opened at both sides of the bottom of the sliding clamping block 53. Slide rails 59 are fixedly arranged at both sides of the fixing plate 51. The sliding grooves 58 are fitted and installed with the slide rails 59. The sliding clamping block 53 can move through the cooperation of the sliding grooves 58 and the slide rails 59. Through the settings of the four pneumatic clamping mechanisms 5, on the one hand, the function of centering and clamping and fixing the porous brick (the porous brick core 12, the steel shell 13 and the ventilation pipe 15) can be achieved; on the other hand, the function of providing fixed limit for the ventilation pipe 15 is provided.

[0030] AsFigure 1 As shown in FIG. 1 or FIG. 2, the center of the square hole opened at the center of the fixing plate 51 is concentric with the limiting hole 42, and the V-shaped grooves 57 provided on the inner sides of the fixed clamping block 52 and the sliding clamping block 53 are provided throughout from top to bottom. Through the setting of the limiting hole 42, the air vent pipe 15 at the bottom of the steel shell 13 is fixed and limited. At the same time, under the centering and clamping cooperation of the fixed clamping block 52 and the sliding clamping block 53, the core 12 of the breathable brick, the steel shell 13 and the air vent pipe 15 can be firmly fixed on the pneumatic clamping mechanism 5.

[0031] As Figure 1-3As shown in the figure, the usage process of this cutting device for the allowance of the steel shell of the breathable brick is as follows: First, the clamping action of the pneumatic clamping mechanism: When the rotating disk 4 is in the initial position, the operator places the assembled core 12 of the breathable brick, the steel shell 13, and the vent pipe 15 (breathable brick) at the centers of the fixed clamping block 52 and the sliding clamping block 53 of the pneumatic clamping mechanism 5. At the same time, the vent pipe 15 is inserted into the limit hole 42, so that the core 12 of the breathable brick, the steel shell 13, and the vent pipe 15 (breathable brick) are in a vertical state. The core 12 of the breathable brick, the steel shell 13, and the vent pipe 15 are placed in all four pneumatic clamping mechanisms 5. Finally, the operator clicks the control button of the pneumatic clamping mechanism 5 on the interactive screen, and the PLC control module transmits an opening control instruction to the solenoid valve. The cylinders 55 of the four pneumatic clamping mechanisms 5 start to act, pushing the telescopic rods 56 to extend. Under the push of the extension action of the telescopic rods 56, the sliding clamping block 53 moves towards the position of the fixed clamping block 52 through the cooperation of the sliding groove 58 and the slide rail 59 until the steel shell 13 is centered and clamped. Second, the cutting of the allowance of the steel shell of the breathable brick: After the steel shell 13 is centered and clamped, the operator clicks the indexing rotation button of the rotating disk 4 on the interactive interface, and the PLC control module sends a start control instruction to the motor 31 of the indexing mechanism 3. The rotation of the motor 31 drives the driving wheel 33 to rotate. The driving wheel 33 drives the driven wheel 36 to rotate through the transmission belt. Under the rotation action of the driven wheel 36, power is input to the divider 38 through the input shaft 35 of the divider. At this time, the PLC control module controls the divider 38 to rotate 90 degrees. At the same time, the power of the rotation angle of 90 degrees of the output shaft 37 of the divider is transmitted to the rotating disk 4 through the slewing bearing 39, realizing the rotation of the rotating disk 4 by 90 degrees. At this time, the pneumatic clamping mechanism 5 in the initial position rotates to the lower position of the linear module two 93, and then the rotating disk 4 automatically stops rotating; Subsequently, the PLC control module sends a start control instruction to the stepping motor 10, and the stepping motor 10 drives the cutting tool disk 11 to rotate at a high speed. At the same time, the PLC control module sends a start control instruction to the linear module one 91 of the lifting displacement mechanism 9 (according to the height between the cutting tool disk 11 and the rotating disk 4, plus the depth parameter of the limit hole 42 minus the heights of the vent pipe 15 and the core 12 of the breathable brick, which is the allowance 14 of the steel shell 13 that needs to be cut, and at the same time is the distance for the linear module one 91 to move downward), so that the linear module one 91 drives the vertical slider 92 to move downward until it reaches the corresponding position at the top of the core 12 of the breathable brick. At the same time, the linear module two 93 drives the horizontal slider 94 to drive the cutting tool disk 11 to move from the initial position (the middle position of the linear module two 93 is the initial position) to the position of the linear module one 91, thereby cutting off the allowance 14 of the steel shell 13. After the cutting action is completed, the cutting tool disk 11 returns to the initial position. The above process is the cutting process of the allowance 14 of the steel shell 13 of the breathable brick.

[0032] Various modifications to the above-described embodiments will be apparent to those of ordinary skill in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for cutting the excess of a steel shell of a breathable brick, comprising a bracket, a dividing rotating frame, and a dividing rotating mechanism; a dividing rotating frame is fixedly arranged at the upper left position of the bracket, and the dividing rotating frame is in a hollow square shape; the dividing rotating mechanism is fixedly arranged at the inner middle position of the dividing rotating frame, and the dividing rotating mechanism is used to provide an angle rotation power to the rotating disk; characterized in that: The rotating disk is fixedly arranged at the upper center position of the indexing rotating frame, and four pneumatic clamping mechanisms are cross-symmetrically arranged around the circumference of the rotating disk, and the pneumatic clamping mechanism is used to fix and clamp the steel shell and the ventilation pipe; the pneumatic slip ring support cylinder is vertically fixedly arranged at the center of the rotating disk, and the pneumatic slip ring is fixedly arranged at the upper part of the pneumatic slip ring support cylinder, and the pneumatic slip ring is used to ensure that the high-pressure gas delivered to the pneumatic clamping mechanism is not interfered by the rotation when the rotating disk rotates; the L-shaped bracket is fixedly arranged at the right rear end position of the bracket, and the L-shaped bracket is used to fix and support the lifting displacement mechanism; the lifting position The shifting mechanism is fixedly arranged at the front left end of the L-shaped bracket, the lifting and displacement mechanism and the pneumatic clamping mechanism are arranged in correspondence with each other up and down, and the lifting and displacement mechanism is used to provide up and down, front and back displacement movements to the stepping motor and the cutting disc; the stepping motor is fixedly arranged at the lower middle position on the front side of the lifting and displacement mechanism, and the cutting disc is fixedly arranged at the lower end of the power output shaft of the stepping motor; a ventilation pipe is welded to the bottom of the steel shell, and the air-permeable brick core is bonded and sleeved in the steel shell by refractory mud. The steel shell surplus is the part of the steel shell that is higher than the air-permeable brick core, and the steel shell is centeringly clamped on the pneumatic clamping mechanism.

2. The device for cutting the excess of the steel shell of a permeable brick according to claim 1, characterized in that: The indexing and rotating mechanism comprises a motor, which is fixedly arranged at the front side of a fixed plate, which is longitudinally fixedly arranged inside the indexing and rotating frame near the left side, a power output shaft of the motor passes through the fixed plate body and extends to the left side of the fixed plate, and a driving wheel is fixedly arranged on the power output shaft of the motor; an indexer input shaft is arranged at the rear side of the indexer, and the indexer input shaft passes through the indexer body and extends to the left and right sides of the indexer; a driven wheel is fixedly arranged at the left end of the indexer input shaft, the driven wheel and the driving wheel are arranged in a front-to-back correspondence, and a transmission belt is installed on the driving wheel and the driven wheel; an indexer output shaft is arranged at the middle position of the indexer, and the indexer output shaft passes through the upper part of the indexer, a slewing bearing and the indexing and rotating frame and extends to the center of the rotating disk, the slewing bearing is fixedly arranged at the upper center position of the indexer, and the upper end of the indexer output shaft is fixedly connected to the bottom center of the rotating disk.

3. The device for cutting the excess of steel shell of a permeable brick according to claim 1, characterized in that: The rotating disk comprises a rotating disk body, and the upper part of the rotating disk body is cross-symmetrically provided with limiting holes, and the diameter of the limiting holes is larger than the diameter of the ventilation pipe.

4. The device for cutting the excess of the steel shell of a permeable brick according to claim 1, characterized in that: The pneumatic clamping mechanism includes a fixed plate, which is fixedly arranged on the rotating disk, and a square hole is opened in the center of the fixed plate. The fixed clamping block is fixedly arranged on the fixed plate facing the center direction of the rotating disk. The sliding clamping block is fixedly arranged at the outer position corresponding to the fixed clamping block, and the sliding clamping block is fixedly connected to the upper part of the fixed plate near the outer side. The mounting plate is fixedly arranged at the upper outer edge position of the fixed plate, and the cylinder is arranged at the middle position of the outer side of the mounting plate. The telescopic rod of the cylinder passes through the mounting plate body and is fixedly connected to the middle position of the outer side of the sliding clamping block; V-shaped grooves are symmetrically arranged at the inner middle position of the fixed clamping block and the sliding clamping block, and the sliding grooves are symmetrically arranged at the two side positions of the bottom of the sliding clamping block. The slide rails are fixedly arranged at the two side positions of the fixed plate, and the sliding grooves are installed in coordination with the slide rails. The sliding clamping block can realize its movement through the cooperation between the sliding grooves and the slide rails.

5. The device for cutting the excess of the steel shell of a permeable brick according to claim 4 is characterized in that: The center of the square hole opened in the center of the fixed plate is concentric with the limiting hole, and the V-shaped grooves arranged on the inner sides of the fixed clamping block and the sliding clamping block are arranged throughout the body from top to bottom.

6. The device for cutting the excess of steel shell of a permeable brick according to claim 4, characterized in that: The sliding groove is in a concave trapezoidal shape, the sliding rail is in a convex trapezoidal shape, and the size of the sliding groove is larger than the size of the sliding rail.

7. The device for cutting the excess of steel shell of air-permeable brick according to claim 1, characterized in that: The lifting and displacement mechanism includes a linear module 1, which is fixedly arranged at the front left end of the L-shaped bracket, the thread hole of the vertical slider is fitted on the screw rod of the linear module 1, the linear module 2 is longitudinally fixedly arranged on the front side of the vertical slider, and the thread hole of the transverse slider is fitted on the screw rod of the linear module 2.

8. The device for cutting the excess of steel shell of air-permeable brick according to claim 1, characterized in that: The steel shell is center-clamped at a middle position between the fixed clamping block and the sliding clamping block, and the vent pipe is inserted into a limiting hole on the rotating disk body.

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