Cutting machine for bed temperature wear-resistant thermowell of boiler

Abstract

The invention relates to the technical field of sleeve cutting, and discloses a boiler bed temperature wear-resistant thermocouple sleeve cutting machine which comprises a workbench and a clamp installed close to the feeding end of a workpiece, a compensation piece is arranged at the overhanging end of the workpiece, and a fixing assembly is arranged on the side, close to the workpiece, of the compensation piece. The fixing assembly comprises a first sliding block, the two sides of the first sliding block are inclined planes, fixing pieces are arranged on the two sides of the first sliding block, second sliding grooves are formed in the sides, close to each other, of the two fixing pieces, and the two ends of the first sliding block are located in the second sliding grooves correspondingly and are in sliding fit with the second sliding grooves; a first sliding groove is formed in the side, close to the fixing piece, of the compensation piece. Through arrangement of the fixing assembly and cooperation of the limiting assembly, the overhanging end of the workpiece can be automatically clamped, meanwhile, the electric push rod drives the two sets of fixing blocks to move to clamp the position, close to a cut-off point, of the workpiece, the cutting precision is improved, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of casing cutting, and particularly relates to a casing cutting machine for wear-resistant thermocouples of boiler bed temperature. Background Art

[0002] Due to the requirements of the application scenario, a single long-sized sleeve needs to be cut into multiple short tubes for the thermocouple protection sleeve. The existing production line uses automatic feeding plus a rotary grinding wheel cutting machine or a band saw cutting machine for segmented operation.

[0003] Chinese Patent Invention CN202110662501.6 discloses a casing cutting machine for wear-resistant thermocouples of boiler bed temperature, including a bottom plate. Two vertical baffles are symmetrically and fixedly connected to the upper end of the bottom plate. A top plate is fixedly connected to the upper ends of the two vertical baffles. An installation block is installed at the lower end of the top plate, and an installation groove is provided at the lower end of the installation block; a cutting module for cutting is provided in the installation groove, and the cutting module is used for cutting the casing. The cutting module includes a double-shaft motor installed on the left side of the installation block. During the use of this cutting machine, only the personnel need to limit the position of the casing well. The movement of the threaded rod drives the cutting of the casing. The running speed is relatively stable during the operation, the cutting effect is good, and a blower is provided. Water mist is sprayed while blowing air, which can reduce the temperature on the cutting blade and reduce the noise pollution.

[0004] The sleeve is only clamped at one end by a conveying fixture, and the distal end of the cutting point is in a free hanging state. The radial force of the grinding wheel or saw blade causes the transverse vibration of the casing, resulting in the deviation of the cut, the over-standard ovality of the pipe orifice, and the reduction of the quality of the sleeve cutting.

[0005] Therefore, it is necessary to provide a casing cutting machine for wear-resistant thermocouples of boiler bed temperature to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a casing cutting machine for wear-resistant thermocouples of boiler bed temperature to solve the problems in the prior art such as the sleeve is only clamped at one end by a conveying fixture, the distal end of the cutting point is in a free hanging state, the radial force of the grinding wheel or saw blade causes the transverse vibration of the casing, resulting in the deviation of the cut, the over-standard ovality of the pipe orifice, and the reduction of the quality of the sleeve cutting.

[0007] Based on the above idea, the present invention provides the following technical solutions: including a workbench and a fixture installed near the workpiece feeding end, a compensating member is provided at the overhanging end of the workpiece, a fixing assembly is provided on the side of the compensating member close to the workpiece, the fixing assembly includes a first slider, both sides of the first slider are inclined surfaces, fixing members are provided on both sides of the first slider, second sliding grooves are opened on the sides of the two fixing members close to each other, both ends of the first slider are respectively located in the second sliding grooves and are slidably matched with them; a first sliding groove is opened on the side of the compensating member close to the fixing member, one end of the fixing member is arranged in the first sliding groove and is slidably matched with it; one end of the first slider close to the compensating member is fixedly connected with a first sliding rod, the first sliding rod penetrates through the compensating member and is slidably matched with it, and the end of the first sliding rod away from the first slider is connected with the compensating member through a spring; a limiting assembly is fixed on one side of the first sliding rod for limiting the position of the first sliding rod.

[0008] As a further scheme of the present invention: the limiting assembly includes a rack, the rack is fixedly connected to the outer side of the first sliding rod, a ratchet is arranged on one side of the rack, a support rod is connected inside the ratchet through a torsion spring, and one end of the support rod is fixedly connected to the side of the compensating member close to the first sliding rod.

[0009] As a further scheme of the present invention: a threaded rod is rotatably connected to the side of the compensating member away from the first slider, the threaded rod penetrates through the workbench and is threadedly connected with it; the compensating member is slidably connected with the workbench.

[0010] As a further scheme of the present invention: the ends of the two fixing members away from the compensating member are parallel to each other and are both perpendicular to the compensating member.

[0011] As a further scheme of the present invention: a metal cutting machine is installed on the workbench, a hydraulic rod is arranged on one side of the metal cutting machine, and the hydraulic rod is connected to the inner wall of the workbench; a second sliding rod is connected to one side of the metal cutting machine, and a rotating assembly is arranged on the outer side of the second sliding rod.

[0012] As a further scheme of the present invention: the rotating assembly includes a convex block, the convex block is fixedly connected to the outer side of the second sliding rod, a circular sleeve rod is sleeved on the outer side of the second sliding rod, a spiral groove is opened inside the circular sleeve rod, the convex block is located inside the spiral groove and is slidably matched with it; a reciprocating screw rod is rotatably connected to the outer side of the circular sleeve rod through a one-way damping bearing; a switching assembly is arranged on the outer side of the reciprocating screw rod.

[0013] As a further solution of the present invention: The switching component includes a second slider, which is connected to the outside of the reciprocating screw rod through a nut pair. One end of the second slider is fixedly connected with a bearing platform, and the bearing platform is slidably connected to the workbench; The compensating member is slidably connected to the top of the bearing platform, and the threaded rod penetrates through the bearing platform and is threadedly connected thereto.

[0014] As a further solution of the present invention: The number of the fixing components is set to two groups, and both are installed on the same side of the compensating member.

[0015] Compared with the prior art, the beneficial effect of the present invention is that through the setting of the fixing component and the cooperation of the limiting component, the overhanging end of the workpiece can be automatically clamped. At the same time, the two fixing blocks are driven by the electric push rod to move to clamp the position of the workpiece close to the cutting point, improving the cutting accuracy and the product quality.

[0016] Compared with the prior art, the beneficial effect of the present invention is that through the setting of the metal cutting machine and the hydraulic rod, and the cooperation of the fixing component, the rotating component and the switching component, the end of the sleeve can be directly sealed after the workpiece is divided into sections, saving working steps, time and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the first slider of the present invention; Figure 3 is the structural schematic diagram of the fixing member of the present invention; Figure 4 is the structural schematic diagram of the limiting component of the present invention; Figure 5 is the structural schematic diagram of the bearing platform of the present invention; Figure 6 is the structural schematic diagram of the metal cutting machine of the present invention; Figure 7 is the structural schematic diagram of the second sliding rod of the present invention; Figure 8 is the structural schematic diagram of the reciprocating screw rod of the present invention.

[0019] In the figure: 1. Compensating part; 101. First sliding groove; 2. First sliding block; 3. Fixing part; 301. Second sliding groove; 4. First sliding rod; 5. Spring; 6. Limiting component; 601. Rack; 602. Ratchet wheel; 603. Torsion spring; 604. Support rod; 7. Threaded rod; 8. Metal cutting machine; 9. Hydraulic rod; 10. Second sliding rod; 11. Bump; 12. Circular sleeve rod; 1201. Spiral groove; 13. Reciprocating lead screw; 14. Second sliding block; 15. Carrying platform; 16. Workpiece; 17. Pipe end sealer. Detailed implementation manner

[0020] As Figures 1 to 4 shown, a boiler bed temperature wear-resistant thermocouple sleeve cutting machine includes a workbench and a fixture installed near the feeding end of the workpiece 16. The fixture here includes two sets of symmetrically arranged fixing blocks, and both of the two fixing blocks are driven by electric push rods. The two sets of fixing blocks are driven by the two sets of symmetrically arranged electric push rods to approach each other to clamp the workpiece 16, and the positions of the two sets of fixing blocks are both set near the cutting point.

[0021] Differently, a compensating part 1 is arranged at the overhanging end of the workpiece 16. A fixing component is arranged on the side of the compensating part 1 close to the workpiece 16. The fixing component includes a first sliding block 2. Fixing parts 3 are arranged on both sides of the first sliding block 2. Second sliding grooves 301 are opened on the sides of the two fixing parts 3 close to each other. The two ends of the first sliding block 2 are respectively located in the second sliding grooves 301 and are slidably matched with them; a first sliding groove 101 is opened on the side of the compensating part 1 close to the fixing part 3, and one end of the fixing part 3 is arranged in the first sliding groove 101 and is slidably matched with it; a first sliding rod 4 is fixedly connected to the end of the first sliding block 2 close to the compensating part 1. The first sliding rod 4 penetrates through the compensating part 1 and is slidably matched with it. The end of the first sliding rod 4 away from the first sliding block 2 is connected to the compensating part 1 through a spring 5; a limiting component 6 is fixed on one side of the first sliding rod 4 for limiting the position of the first sliding rod 4.

[0022] In this embodiment, a fixing component is arranged at the overhanging end of the workpiece 16, so that both the overhanging end of the workpiece 16 and the position close to the cutting point are fixed, improving the cutting accuracy. The specific operation steps are as follows. First, one end of the workpiece 16 is passed through between the two sets of fixing blocks, so that the end of the workpiece 16 presses against the first sliding block 2. When the first sliding block 2 is pressed by the end of the workpiece 16, it overcomes the acting force of the spring 5, so that the first sliding block 2 moves towards the compensating part 1, and the first sliding rod 4 moves synchronously with the first sliding block 2. Under the action of the limiting component 6, the first sliding rod 4 can only move in one direction, and vice versa, it is locked by the limiting component 6; Since both sides of the first slider 2 are provided with inclined surfaces and the first slider 2 is slidably connected to the fixing member 3, when the first slider 2 moves horizontally, under the limitation of the compensating member 1, the two fixing members 3 move towards each other. When the two fixing members 3 move towards each other, they clamp the overhanging end of the workpiece 16. After the overhanging end of the workpiece 16 is clamped and fixed, two electric push rods are started to drive the two fixed blocks to move towards each other and clamp at the position of the workpiece 16 close to the cutting point. After clamping, a metal cutting machine 8 is used for cutting to improve the cutting accuracy; It should be noted here that a threaded rod 7 is rotatably connected to the side of the compensating member 1 away from the first slider 2. The threaded rod 7 passes through the workbench and is threadedly connected thereto; the compensating member 1 is slidably connected to the workbench. According to the length of the workpiece 16 cut in actual production, the distance between the compensating member 1 and the cutting point can be adjusted to adapt to sleeves of different lengths. The specific adjustment method is as follows: the compensating member 1 can be driven to move horizontally by rotating the threaded rod 7; It still needs to be particularly noted here that in actual production, the diameters of the sleeves are different. Since the moving paths of the two symmetrically arranged fixing members 3 are unchanged, when batch processing sleeves of other diameters, since the ends of the two fixing members 3 away from the compensating member 1 are parallel to each other and are both perpendicular to the compensating member 1, a set of adjustable moving plates can be installed at the parallel ends of the two fixing members 3. The specific installation structure of the moving plates is as follows: a structure of a first threaded rod plus a moving plate can be adopted. Threaded holes are formed in the fixing member 3 at the parallel ends of the fixing member 3, so that the first threaded rod passes through the threaded hole and is threadedly connected thereto. The end of the first threaded rod is rotatably connected to the moving plate. A limiting rod is additionally provided to limit the moving plate, so that the moving plate moves horizontally under the adjustment of the first threaded rod. According to the sleeves of different diameters in actual batch production, the distance between the two moving plates can be adjusted to clamp sleeves of different diameters.

[0023] As Figure 4 shown, as a further solution of the present invention, the limiting component 6 includes a rack 601. The rack 601 is fixedly connected to the outer side of the first sliding rod 4. A ratchet 602 is arranged on one side of the rack 601. A support rod 604 is connected to the inside of the ratchet 602 through a torsion spring 603. One end of the support rod 604 is fixedly connected to the side of the compensating member 1 close to the first sliding rod 4.

[0024] In this embodiment, when the first slide bar 4 is squeezed and moved by the end of the workpiece 16, the rack 601 moves synchronously with the first slide bar 4. Under the limitation of the ratchet 602, the rack 601 can only move in one direction away from the compensation part 1, and is locked otherwise. After the cutting of the workpiece 16 is completed, the ratchet 602 can be turned to overcome the rotation of the torsion spring 603. At this time, the rack 601 loses the limitation of the ratchet 602, and the first slide bar 4 is reset under the action of the spring 5, so that the two sets of fixing parts 3 release the clamping of the workpiece 16, and the cut section of the workpiece 16 can be quickly removed, saving time and manpower.

[0025] like Figure 5 As shown, as a further solution of the present invention, a metal cutting machine 8 is installed on the workbench, and the metal cutting machine 8 includes a rotating motor, a support arm, and a grinding wheel. The rotating motor is installed on one side of the support arm, and the output shaft of the rotating motor passes through the support arm and is rotatably connected to the support arm. The output shaft of the rotating motor is fixedly connected to the grinding wheel, and the grinding wheel is driven by the rotating motor to rotate at high speed. An accommodating cavity is provided inside the workbench, and the rotating motor and the support arm are both installed inside the accommodating cavity, while part of the grinding wheel is located inside the accommodating cavity, and the other part is located on the surface of the workbench. Heat dissipation holes are provided on the side wall of the workbench, and the heat dissipation holes are connected to the accommodating cavity for dissipating heat from the rotating motor. A hydraulic rod 9 is provided on one side of the metal cutting machine 8, and the hydraulic rod 9 is also located inside the accommodating cavity, and the hydraulic rod 9 is connected to the inner wall of the workbench; a second slide bar 10 is connected to one side of the metal cutting machine 8, and a rotating component is provided on the outside of the second slide bar 10.

[0026] In this embodiment, after the overhanging end and the part near the cutting point of the workpiece 16 are clamped, the hydraulic rod 9 and the rotary motor can be started. At this time, the hydraulic rod 9 drives the high-speed rotating grinding wheel to move toward the cutting point of the workpiece 16 for cutting. It is worth noting here that a groove connected to the accommodating cavity is provided on the top of the workbench, and the width of the groove is sufficient for the movement of the grinding wheel.

[0027] like Figures 5 to 8 As shown, as a further solution of the present invention, the rotating component includes a protrusion 11, which is fixedly connected to the outer side of the second slide rod 10. A circular sleeve rod 12 is sleeved on the outer side of the second slide rod 10. A spiral groove 1201 is opened inside the circular sleeve rod 12. The protrusion 11 is located inside the spiral groove 1201 and slides with it; a reciprocating screw rod 13 is rotatably connected to the outer side of the circular sleeve rod 12 through a one-way damping bearing; a switching component is provided on the outer side of the reciprocating screw rod 13.

[0028] In this embodiment, when the hydraulic rod 9 drives the metal cutting machine 8 to move towards the workpiece 16 for cutting, it can drive the second sliding rod 10 fixedly connected thereto to move. When the second sliding rod 10 moves, it drives the convex block 11 to slide inside the spiral groove 1201. When the convex block 11 slides inside the spiral groove 1201, it drives the circular sleeve rod 12 to rotate. Since the circular sleeve rod 12 is connected to the reciprocating lead screw 13 through a one-way damping bearing, the rotation of the circular sleeve rod 12 does not drive the reciprocating lead screw 13 to rotate; Conversely, when the sleeve cutting is completed and the hydraulic rod 9 drives the metal cutting machine 8 to move away from the workpiece 16, it also drives the convex block 11 to slide inside the spiral groove 1201 at this time, thereby driving the circular sleeve rod 12 to rotate in the reverse direction. At this time, under the action of the one-way damping bearing, the rotation of the circular sleeve rod 12 drives the reciprocating lead screw 13 to rotate synchronously, and the rotation of the reciprocating lead screw 13 drives the switching component to switch.

[0029] As Figures 5 to 8 shown, as a further solution of the present invention, the switching component includes a second slider 14. The second slider 14 is connected to the outside of the reciprocating lead screw 13 through a nut pair. One end of the second slider 14 is fixedly connected to a bearing platform 15. The bearing platform 15 is slidably connected to the workbench; the compensating member 1 is slidably connected to the top of the bearing platform 15, and the threaded rod 7 passes through the bearing platform 15 and is threadedly connected thereto.

[0030] In this embodiment, due to the special design between the reciprocating lead screw 13 and the second slider 14, the rotation of the reciprocating lead screw 13 can drive the second slider 14 to reciprocate, and the bearing platform 15 moves synchronously with the second slider 14. It should be noted here that under the drive of the hydraulic rod 9, the reciprocating lead screw 13 drives the second slider 14 to move in one direction once every rotation. The single moving stroke of the second slider 14 just makes the bearing platform 15 switch stations once. Since the number of fixing components is set to two groups and they are all installed on the same side of the compensating member 1, the movement of the bearing platform 15 once represents the switching of the fixing components once; The specific operation method is as follows. After the end of the workpiece 16 is inserted between the two sets of fixing parts 3 and fixed, the hydraulic rod 9 can be activated at this time to drive the metal cutting machine 8 to move in the direction of the workpiece 16 for cutting. After the cutting is completed, when the metal cutting machine 8 resets, it drives the bearing platform 15 to move unidirectionally, so that the fixing component clamping the cut workpiece 16 moves to one side, and the fixing component not clamping the cut workpiece 16 moves to align with the fixture for clamping the overhanging end of the workpiece 16 again. The fixing component clamping the workpiece 16 is located at another working station. At this time, a pipe end sealer 17 is installed above, and the pipe end sealer 17 can be used to seal one end of the cut workpiece 16. By reciprocating and switching like this, with the cooperation of the rotating component and the switching component, after the workpiece 16 is segmented into sections, one end of the sleeve is directly sealed, saving working steps, time and labor.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant thermocouple sleeve cutting machine for boiler bed temperature, comprising a workbench and a fixture installed near the feeding end of a workpiece (16), characterized in that: A compensation member (1) is provided at the overhanging end of the workpiece (16). A fixing assembly is provided on the side of the compensation member (1) close to the workpiece (16). The fixing assembly includes a first slider (2). Both sides of the first slider (2) are provided with inclined surfaces. Fixing members (3) are provided on both sides of the first slider (2). Second sliding grooves (301) are formed on the sides of the two fixing members (3) close to each other. The two ends of the first slider (2) are respectively located in the second sliding grooves (301) and are slidably engaged therewith; A first sliding groove (101) is formed on the side of the compensation member (1) close to the fixing member (3). One end of the fixing member (3) is arranged in the first sliding groove (101) and is slidably engaged therewith; One end of the first slider (2) close to the compensation member (1) is fixedly connected with a first sliding rod (4). The first sliding rod (4) penetrates through the compensation member (1) and is slidably engaged therewith. The end of the first sliding rod (4) away from the first slider (2) is connected with the compensation member (1) through a spring (5); A limiting assembly (6) is fixed on one side of the first sliding rod (4) for limiting the position of the first sliding rod (4).

2. The abrasion-resistant thermocouple sleeve cutting machine for boiler bed temperature according to claim 1, wherein: The limiting assembly (6) includes a rack (601). The rack (601) is fixedly connected to the outer side of the first sliding rod (4). A ratchet wheel (602) is arranged on one side of the rack (601). A support rod (604) is connected inside the ratchet wheel (602) through a torsion spring (603). One end of the support rod (604) is fixedly connected to the side of the compensation member (1) close to the first sliding rod (4).

3. A boiler bed temperature wear-resistant thermocouple sleeve cutting machine according to claim 2, characterized in that: A threaded rod (7) is rotatably connected to the side of the compensation member (1) away from the first slider (2). The threaded rod (7) penetrates through the workbench and is threadedly connected therewith; The compensation member (1) is slidably connected to the workbench.

4. A boiler bed temperature wear-resistant thermocouple sleeve cutting machine according to claim 3, characterized in that: The ends of the two fixing members (3) away from the compensation member (1) are parallel to each other and are both perpendicular to the compensation member (1).

5. A boiler bed temperature wear-resistant thermocouple sleeve cutting machine according to claim 4, characterized in that: A metal cutting machine (8) is installed on the workbench. A hydraulic rod (9) is arranged on one side of the metal cutting machine (8). The hydraulic rod (9) is connected to the inner wall of the workbench; A second sliding rod (10) is connected to one side of the metal cutting machine (8). A rotating assembly is arranged on the outer side of the second sliding rod (10).

6. A boiler bed temperature wear-resistant thermocouple sleeve cutting machine according to claim 5, characterized in that: The rotating assembly includes a convex block (11). The convex block (11) is fixedly connected to the outer side of the second sliding rod (10). A circular sleeve rod (12) is sleeved on the outer side of the second sliding rod (10). A spiral groove (1201) is formed inside the circular sleeve rod (12). The convex block (11) is located inside the spiral groove (1201) and is slidably engaged therewith; The outer side of the circular sleeve rod (12) is rotatably connected to a reciprocating lead screw (13) through a one-way damping bearing; A switching assembly is arranged on the outer side of the reciprocating lead screw (13).

7. A boiler bed temperature wear-resistant thermocouple sleeve cutting machine according to claim 6, characterized in that: The switching assembly includes a second slider (14). The second slider (14) is connected to the outer side of the reciprocating lead screw (13) through a nut pair. One end of the second slider (14) is fixedly connected with a bearing platform (15). The bearing platform (15) is slidably connected to the workbench; The compensating member (1) is slidably connected to the top of the bearing platform (15), and the threaded rod (7) penetrates through the bearing platform (15) and is threadedly connected thereto.

8. A boiler bed temperature wear-resistant thermocouple sleeve cutting machine according to claim 7, characterized in that: The number of the fixing components is set to two groups, and both are installed on the same side of the compensating member (1).

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