CN215659045U

CN215659045U - Boring mechanism for inner hole of furnace tube

Info

Publication number: CN215659045U
Application number: CN202120854462.5U
Authority: CN
Inventors: 庄梓栩; 葛佳; 杨林青; 蔡科星; 余炎; 印世林
Original assignee: Jiangsu Hengyang Metallurgical Technology Co ltd
Current assignee: Jiangsu Hengyang Metallurgical Technology Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-01-28
Anticipated expiration: 2031-04-23

Abstract

The utility model provides a furnace tube inner hole boring mechanism which comprises a main shaft flange arranged on a frame, wherein a chuck is arranged on the main shaft flange; the inner hole boring mechanism for the furnace tube further comprises a cutter bar, a boring cutter is mounted at the left end of the cutter bar, the cutter bar is mounted on the frame through a horizontal adjusting mechanism, the cutter bar is arranged on the horizontal adjusting mechanism through a supporting portion, a chuck and the supporting portion support the furnace tube, stability of the longer furnace tube in the rotating process is guaranteed, the horizontal adjusting mechanism drives the cutter bar to move from left to right to drive the boring cutter to pull and bore the inner hole of the furnace tube, stability of the boring cutter in working can be guaranteed in the mode, boring precision is improved, and meanwhile the boring mechanism is low in manufacturing cost and convenient for operation of workers.

Description

Boring mechanism for inner hole of furnace tube

Technical Field

The utility model relates to the field of furnace tube processing, in particular to a boring mechanism for an inner hole of a furnace tube.

Background

The furnace tube is a steel material with wide application, and can be used in the fields of pipelines, thermal equipment, mechanical industry, petroleum geological exploration, containers, chemical industry and the like. At present, the domestic boring equipment generally adopts a top boring processing mode when processing a furnace tube, and the mode has the effects of low cost and high precision for processing shorter furnace tubes, but has the problems of large deflection and incapability of ensuring the processing precision when processing furnace tubes with the length of 4-5 meters or even longer, so that when the precision requirement of the furnace tubes with longer length is higher, only import is relied on, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model provides a boring mechanism for inner holes of furnace tubes, which aims to solve the technical problems that the existing boring equipment has large deflection and cannot ensure the machining precision when machining the furnace tubes with the length of 4-5 meters or even longer.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a furnace tube inner hole boring mechanism comprises a main shaft flange arranged on a frame, wherein a chuck is arranged on the main shaft flange, a supporting part which is arranged in a collinear way with the chuck is also arranged on the frame, one end of a furnace tube to be processed is assembled on the chuck, and the other end of the furnace tube is assembled on the supporting part; the inner hole boring mechanism of the furnace tube further comprises a cutter bar, a boring cutter is mounted at the left end of the cutter bar, the cutter bar is mounted on the rack through a horizontal adjusting mechanism, and the cutter bar moves along the inner hole of the furnace tube under the driving of the horizontal adjusting mechanism to drive the boring cutter to bore the inner hole of the furnace tube.

Further: the supporting part comprises a first supporting sleeve and two supporting wheels, the furnace tube is inserted into an inner hole of the first supporting sleeve, the central axis of the first supporting sleeve is superposed with the central axis of the main shaft flange, a concave groove is formed in the outer wall of the first supporting sleeve along the circumferential direction, the two supporting wheels are installed on the rack and are respectively positioned on two sides below the first supporting sleeve, the two supporting wheels support the first supporting sleeve, the rotating centers of the two supporting wheels are arranged in parallel to the central axis of the furnace tube, and the wheel walls of the two supporting wheels are attached to the groove bottom of the concave groove; the supporting part also comprises a first bracket, one end of the first bracket is hinged on the frame, the other end of the first bracket is provided with a buckle which can be clamped on the frame, the first bracket is provided with a mounting hole, the mounting hole is internally provided with a mounting rod, the top of the mounting rod is provided with an upper limiting clamping table, the middle part of the mounting rod is provided with a lower limiting clamping table, the sizes of the upper limiting clamping table and the lower limiting clamping table are both larger than the inner diameter of the mounting hole, a spring is sleeved on the mounting rod, the spring is positioned between the first bracket and the lower limiting clamping table, the lower part of the mounting rod is provided with a pressing wheel, the center of rotation of pinch roller is on a parallel with the central axis setting of boiler tube, the deformation power of spring can drive the installation pole to first supporting sleeve removes, and makes the wheel wall laminating of pinch roller in the tank bottom of concave groove.

Further: horizontal adjustment mechanism includes guide rail, lead screw and driving motor, the guide rail sets up along the horizontal direction in the frame, and be on a parallel with the central axis setting of main shaft flange, the lead screw is on a parallel with the guide rail sets up, and rotate and install in the frame, driving motor fixed mounting be in the frame, driving motor's output shaft with the one end fixed connection of lead screw, install the slider on the lead screw, slider slidable mounting be in on the guide rail, the lead screw is in driving motor's drive is down rotated and can is driven the slider is followed the guide rail removes, the right-hand member fixed mounting of cutter arbor is in on the slider.

Further: the rack is also provided with a second support, a second support sleeve is fixedly arranged on the second support, a support hole is formed in the second support sleeve, and the cutter bar is inserted into the support hole and can slide left and right along the support hole; the outer wall of the second support sleeve is fixedly sleeved with a sleeve, the right end of the furnace tube can be inserted into the inner cavity of the sleeve, and the bottom of the sleeve is provided with a slag outlet.

Further: the hole wall of the supporting hole is circumferentially provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the sealing ring is in sealing contact with the outer wall of the cutter bar.

The boring mechanism has the beneficial effects that the support part is arranged on the furnace tube inner hole boring mechanism, the cutter bar is arranged on the horizontal adjusting mechanism, the chuck and the support part support the furnace tube, the stability of the longer furnace tube in the rotating process is ensured, the horizontal adjusting mechanism drives the cutter bar to move from left to right to drive the boring cutter to carry out broaching and boring processing on the inner hole of the furnace tube, the stability of the boring cutter in the working process can be ensured by the mode, the boring precision is improved, and meanwhile, the boring mechanism is low in manufacturing cost and convenient for workers to operate.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a furnace tube inner hole boring mechanism according to the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 and 4 are schematic structural views of the support part;

fig. 5 is a structural schematic view of the second support sleeve and the sleeve.

In the figure, the device comprises a frame 1, a frame 2, a spindle flange 3, a chuck 4, a furnace tube 5, a cutter bar 6, a boring cutter 7, a support sleeve 8, a riding wheel 9, a concave groove 10, a first support 11, an installation rod 12, an upper limiting clamping table 13, a lower limiting clamping table 14, a spring 15, a pinch roller 16, a guide rail 17, a lead screw 18, a driving motor 19, a slide block 20, a second support 21, a second support sleeve 22, a sleeve 23, a slag hole 24, a sealing groove 25 and a sealing ring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

As shown in fig. 1 and 2, the utility model provides a furnace tube inner hole boring mechanism, which comprises a main shaft flange 2 mounted on a frame 1, wherein a chuck 3 is mounted on the main shaft flange 2, the frame 1 is further provided with a supporting part arranged in a collinear manner with the chuck 3, one end of a furnace tube 4 to be processed is assembled on the chuck 3, and the other end of the furnace tube is assembled on the supporting part; the furnace tube inner hole boring mechanism further comprises a cutter bar 5, a boring cutter 6 is mounted at the left end of the cutter bar 5, the cutter bar 5 is mounted on the rack 1 through a horizontal adjusting mechanism, and the cutter bar 5 moves along the inner hole of the furnace tube 4 under the driving of the horizontal adjusting mechanism to drive the boring cutter 6 to bore the inner hole of the furnace tube 4.

During operation, the furnace tube 4 to be processed is sleeved on the cutter bar 5, the horizontal adjusting mechanism drives the cutter bar 5 to move, the boring cutter 6 is made to move to the left side of the chuck 3, then the left end of the furnace tube 4 is assembled on the chuck 3, the right end of the furnace tube 4 is placed on the supporting portion, the chuck 3 drives the furnace tube 4 to rotate under the driving of the spindle flange 2, and the horizontal adjusting mechanism drives the cutter bar 5 to move from left to right to drive the boring cutter 6 to pull and bore the inner hole of the furnace tube 4. In this scheme, come to play the fixed stay effect to boiler tube 4 through chuck 3 and supporting part, guarantee boiler tube 4 and rotate the stability of in-process, move from a left side to the right side through horizontal adjustment mechanism drive cutter arbor 5 simultaneously and drive boring cutter 6 and draw the boring processing to the hole of boiler tube 4, can guarantee the precision of bore hole, this kind of device simple structure simultaneously, low in manufacturing cost, the staff's operation of being convenient for.

Referring to fig. 3 and 4, the supporting portion includes a first supporting sleeve 7 and two supporting rollers 8, the furnace tube 4 is inserted into an inner hole of the first supporting sleeve 7, a central axis of the first supporting sleeve 7 coincides with a central axis of the main shaft flange 2, a concave groove 9 is circumferentially formed in an outer wall of the first supporting sleeve 7, the two supporting rollers 8 are mounted on the frame 1 and respectively located at two sides below the first supporting sleeve 7, the two supporting rollers 8 support the first supporting sleeve 7, a rotation center of the two supporting rollers 8 is parallel to the central axis of the furnace tube 4, and wheel walls of the two supporting rollers 8 are attached to a groove bottom of the concave groove 9; the supporting part further comprises a first support 10, one end of the first support 10 is hinged to the rack 1, the other end of the first support 10 is provided with a buckle which can be clamped on the rack 1, a mounting hole is formed in the first support 10, an installation rod 11 is installed in the mounting hole, the top of the installation rod 11 is provided with an upper limiting clamping table 12, the middle of the installation rod is provided with a lower limiting clamping table 13, the sizes of the upper limiting clamping table 12 and the lower limiting clamping table 13 are both larger than the inner diameter of the mounting hole, a spring 14 is sleeved on the installation rod 11, the spring 14 is located between the first support 10 and the lower limiting clamping table 13, a pinch roller 15 is installed on the lower portion of the installation rod 11, the rotation center of the pinch roller 15 is parallel to the central axis of the furnace tube 4, and the deformation force of the spring 14 can drive the installation rod 11 to move towards the first supporting sleeve 7, and the wall of the pressing wheel 15 is attached to the bottom of the groove 9.

Install boiler tube 4 in the hole of first supporting sleeve 7, first supporting sleeve 7 is placed on riding wheel 8, then compress tightly pinch roller 15 on first supporting sleeve 7, and through the buckle chucking in frame 1, this kind of riding wheel 8 and pinch roller 15's combination supporting part simple structure and reliable and stable, can guarantee boiler tube 4's rotational degree of freedom when playing the bearing effect, the setting of first supporting sleeve 7 can adapt to different external diameter size's boiler tube 4 through the aperture that changes the hole and process, wide application range has, the setting of concave groove 9 can avoid rotating in-process first supporting sleeve 7 and break away from riding wheel 8 and pinch roller 15.

Horizontal adjustment mechanism includes guide rail 16, lead screw 17 and driving motor 18, guide rail 16 sets up along the horizontal direction on the frame 1, and be on a parallel with the central axis setting of main shaft flange 2, lead screw 17 is on a parallel with guide rail 16 sets up, and rotate and install in frame 1, driving motor 18 fixed mounting be in frame 1 is last, driving motor 18's output shaft with the one end fixed connection of lead screw 17, install slider 19 on the lead screw 17, slider 19 slidable mounting be in on the guide rail 16, lead screw 17 is in driving motor 18's the drive can drive down slider 19 is followed guide rail 16 removes, the right-hand member fixed mounting of cutter arbor 5 is in on slider 19.

The screw rod 17 is driven by the driving motor 18 to rotate to drive the slide block 19 to move along the guide rail 16, and further the cutter bar 5 is driven to move along the horizontal direction to drive the boring cutter 6 to bore; the moving parameters of the slide block 19 can be accurately controlled by controlling the rotation quantity of the driving motor 18, so that the accurate control of the moving speed of the boring cutter 6 in the horizontal direction is realized, and the automatic control can be realized.

Referring to fig. 5, a second support 20 is further disposed on the frame 1, a second support sleeve 21 is fixedly mounted on the second support 20, a support hole is disposed in the second support sleeve 21, and the knife bar 5 is inserted into the support hole and can slide left and right along the support hole; the outer wall of the second support sleeve 21 is fixedly sleeved with a sleeve 22, the right end of the furnace tube 4 can be inserted into the inner cavity of the sleeve 22, and the bottom of the sleeve 22 is provided with a slag outlet 23. The hole wall of the support hole is circumferentially provided with a sealing groove 24, a sealing ring 25 is arranged in the sealing groove 24, and the sealing ring 25 is in sealing contact with the outer wall of the cutter bar 5.

During operation, horizontal adjustment mechanism drive cutter arbor 5 removes, because cutter arbor 5 is longer, the stability that cutter arbor 5 removed can be improved to the structure setting that cutter arbor 5 inserted in the second support cover 21, cutting fluid and iron fillings that the adhesion was on cutter arbor 5 in the course of working can be avoided following cutter arbor 5 right removal to block up the support hole to seal groove 24 and sealing washer 25's setting, setting up in furnace tube 4 right-hand member insert sleeve 22 can make cutting fluid and iron fillings flow from slag notch 23, avoid cutting fluid and iron fillings to spatter in disorder.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a boiler tube hole boring mechanism, is including installing main shaft flange (2) on frame (1), its characterized in that: a chuck (3) is mounted on the spindle flange (2), a supporting part which is arranged in a collinear way with the chuck (3) is further arranged on the rack (1), one end of a furnace tube (4) to be processed is assembled on the chuck (3), and the other end of the furnace tube is assembled on the supporting part;

the inner hole boring mechanism for the furnace tube further comprises a cutter bar (5), a boring cutter (6) is mounted at the left end of the cutter bar (5), the cutter bar (5) is mounted on the rack (1) through a horizontal adjusting mechanism, and the cutter bar (5) is driven by the horizontal adjusting mechanism to move along the inner hole of the furnace tube (4) and can drive the boring cutter (6) to bore the inner hole of the furnace tube (4).

2. The furnace tube inner hole boring mechanism of claim 1, wherein: the supporting part comprises a first supporting sleeve (7) and two supporting wheels (8), the furnace tube (4) is inserted into an inner hole of the first supporting sleeve (7), the central axis of the first supporting sleeve (7) is coincided with the central axis of the main shaft flange (2), a concave groove (9) is formed in the outer wall of the first supporting sleeve (7) along the circumferential direction, the two supporting wheels (8) are installed on the rack (1) and are respectively located on two sides below the first supporting sleeve (7), the two supporting wheels (8) support the first supporting sleeve (7), the rotating centers of the two supporting wheels (8) are arranged in parallel to the central axis of the furnace tube (4), and the wheel walls of the two supporting wheels (8) are attached to the groove bottom of the concave groove (9);

the supporting part further comprises a first support (10), one end of the first support (10) is hinged to the rack (1), the other end of the first support (10) is provided with a buckle capable of being clamped on the rack (1), a mounting hole is formed in the first support (10), a mounting rod (11) is installed in the mounting hole, the top of the mounting rod (11) is provided with an upper limiting clamping table (12), the middle of the mounting rod is provided with a lower limiting clamping table (13), the sizes of the upper limiting clamping table (12) and the lower limiting clamping table (13) are larger than the inner diameter of the mounting hole, a spring (14) is sleeved on the mounting rod (11), the spring (14) is located between the first support (10) and the lower limiting clamping table (13), a pinch roller (15) is installed on the lower portion of the mounting rod (11), the rotation center of the pinch roller (15) is parallel to the central axis of the furnace tube (4), the deformation force of the spring (14) can drive the mounting rod (11) to move towards the first supporting sleeve (7), and the wall of the pressing wheel (15) is attached to the bottom of the groove (9).

3. The furnace tube inner hole boring mechanism of claim 1, wherein: the horizontal adjusting mechanism comprises a guide rail (16), a screw rod (17) and a driving motor (18), the guide rail (16) is arranged on the rack (1) along the horizontal direction, and is arranged parallel to the central axis of the spindle flange (2), the lead screw (17) is arranged parallel to the guide rail (16), and is rotatably arranged on the frame (1), the driving motor (18) is fixedly arranged on the frame (1), an output shaft of the driving motor (18) is fixedly connected with one end of the screw rod (17), a slide block (19) is arranged on the screw rod (17), the slide block (19) is arranged on the guide rail (16) in a sliding way, the lead screw (17) is driven by the driving motor (18) to rotate so as to drive the sliding block (19) to move along the guide rail (16), the right end of the cutter bar (5) is fixedly arranged on the sliding block (19).

4. The furnace tube inner hole boring mechanism of claim 1, wherein: the rack (1) is also provided with a second support (20), a second support sleeve (21) is fixedly mounted on the second support (20), a support hole is formed in the second support sleeve (21), and the cutter bar (5) is inserted into the support hole and can slide left and right along the support hole; the outer wall of the second support sleeve (21) is fixedly sleeved with a sleeve (22), the right end of the furnace tube (4) can be inserted into the inner cavity of the sleeve (22), and a slag outlet (23) is formed in the bottom of the sleeve (22).

5. The furnace tube inner hole boring mechanism of claim 4, wherein: the hole wall of the support hole is circumferentially provided with a sealing groove (24), a sealing ring (25) is arranged in the sealing groove (24), and the sealing ring (25) is in sealing contact with the outer wall of the cutter bar (5).