Flaring equipment for small-caliber pipe fitting

Abstract

The utility model discloses a small-caliber pipe fitting flaring device which comprises two machine frames, a working table is arranged at the upper ends of the machine frames, and the working table is fixedly connected with the machine frames. The fixing base is arranged on one side of the upper end of the workbench, a sliding groove is formed in the upper portion of one side in the fixing base, a sliding block is arranged in the sliding groove, and the upper end of the sliding block extends to the position above the fixing base; the stepping motor is arranged in the workbench, an output shaft of the stepping motor extends to the exterior of the sliding block, a rotating disc is arranged on one side of the output shaft, located outside the sliding block, of the stepping motor, the rotating disc is fixedly connected with the output shaft of the stepping motor, and eight flaring dies which are annularly distributed at equal intervals are arranged on one side of the rotating disc; by means of the structure, the problems that the flaring dies are not flexible enough to replace, and a clamping structure is difficult to adapt to pipe fittings with different calibers are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe expansion, in particular to a small-diameter pipe expansion device. Background Art

[0002] Pipe fittings are a general term for parts that play the role of connection, control, direction change, diversion, sealing, support, etc. in pipeline systems. The opening size of pipe fittings can be changed by expanding equipment when it is not suitable. Expanding equipment is a kind of mechanical equipment widely used in metal processing, construction, automobile manufacturing and other fields. Its main function is to process metal parts such as plates and pipes through machines so that they can expand or contract within a certain range to achieve the desired shape and size. Expanding equipment is usually driven by mechanical force or hydraulic force, and precise shape and size control is achieved by controlling the expansion strength of metal materials. There are many types of expanding equipment, including expanding machines, automatic pipe expanding machines, etc. The application fields of expanding equipment are very wide, such as steel structure, metal processing, automobile manufacturing, aerospace, construction and other industries. In these industries, expanding equipment is used for rolling, forming and stretching of plates and pipes, and is one of the important equipment that cannot be ignored in the manufacturing process.

[0003] For example, the Chinese patent "A New Pipe Fitting Expanding Equipment" with announcement number CN213671504U includes a frame, a servo motor is installed on the inner bottom of the frame by bolts, the output shaft of the servo motor is fixedly connected to a rotating positioning cylinder, the top opening of the rotating positioning cylinder passes through the inner plate of the frame and extends to the upper part of the frame, the inner side of the rotating positioning cylinder is placed with processed pipe fittings, the left and right inner walls of the rotating positioning cylinder are provided with arc-shaped receiving grooves, the left and right sides of the rotating positioning cylinder are provided with through holes, and the two through holes on the rotating positioning cylinder are installed with positioning nuts. The pipe fitting expanding equipment effectively adjusts the distance between the two arc-shaped limit plates, and then clamps and positions the corresponding processed pipe fittings.

[0004] Although the above-mentioned prior art can realize the expansion of small-diameter pipe fittings, in actual use, on the one hand, the replacement of the expansion mold is not flexible enough. When replacing the corresponding expansion mold according to the pipe fittings of different diameters, the expansion mold needs to be dismantled as a whole, which makes the dismantling process cumbersome and increases the workload of personnel. On the other hand, the clamping structure is difficult to adapt to pipe fittings of different diameters. When it is necessary to expand pipe fittings of different diameters, it is necessary to replace the expansion equipment of different diameters, thereby reducing the adaptability of the expansion equipment to pipe fittings of different diameters. Therefore, it does not meet the existing needs. In this regard, we propose a small-diameter pipe expansion equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a small-diameter pipe expanding device to solve the problem that the replacement of the expanding mold is not flexible enough according to the above-mentioned background technology. When replacing the corresponding expanding mold according to the pipes of different diameters, the expanding mold needs to be dismantled as a whole, which makes the dismantling process complicated and the clamping structure difficult to adapt to the pipes of different diameters. When it is necessary to expand the pipes of different diameters, it is necessary to replace the expanding devices of different diameters, thereby reducing the problem of the adaptability of the expanding device to the pipes of different diameters.

[0006] To achieve the above object, the utility model provides the following technical solutions: a small-diameter pipe expansion device, comprising a frame, wherein two frames are provided, a workbench is provided at the upper end of the frame, and the workbench is fixedly connected to the frame; and further comprising:

[0007] A fixed seat, which is arranged on one side of the upper end of the workbench, a slide groove is arranged above one side of the interior of the fixed seat, a sliding block is arranged inside the slide groove, and the upper end of the sliding block extends to the upper side of the fixed seat;

[0008] A stepper motor is arranged inside the workbench, and the output shaft of the stepper motor extends to the outside of the sliding block. A turntable is arranged on one side of the output shaft of the stepper motor outside the sliding block, and the turntable is fixedly connected to the output shaft of the stepper motor. Eight expanding molds are arranged on one side of the turntable and are evenly distributed in a ring shape, and the sizes of the expanding molds increase successively.

[0009] Preferably, a mounting table is provided on the other side of the upper end of the workbench, an arc-shaped placement block is provided on the upper end of the mounting table, and the arc-shaped placement block is fixedly connected to the mounting table, mounting frames are provided on both sides of the upper end of the arc-shaped placement block, and the mounting frames are fixedly connected to the arc-shaped placement block, limiting grooves are provided at the front and rear ends inside the mounting frames, a rotating rod is provided at the upper end of the mounting frame cross plate, and the other end of the rotating rod extends to the bottom of the mounting frame cross plate.

[0010] Preferably, electric push rods are arranged at the four corners of the lower end of the mounting platform, and the electric push rods are fixedly connected to the mounting platform and the workbench respectively.

[0011] Preferably, pulleys are provided on both sides of the front and rear ends of the sliding block located inside the sliding groove, and the pulleys are slidably matched with the sliding groove.

[0012] Preferably, a hydraulic telescopic device is provided on one side of the fixing seat, the hydraulic telescopic device is fixedly connected to the fixing seat, and the telescopic end of the hydraulic telescopic device is fixedly connected to the sliding block.

[0013] Preferably, an arc-shaped fixing block is arranged inside the limiting groove, and the arc-shaped fixing block is rotatably connected to the rotating rod.

[0014] Preferably, clamping grooves are provided on both sides of the front and rear ends of the arc-shaped placement block, and the clamping grooves correspond to the positions of the arc-shaped fixing blocks.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can flexibly replace expanding dies of different sizes through a turntable and a expanding die. When the pipe is fixed, the stepper motor is turned on to make the output shaft of the stepper motor drive the turntable to rotate. At this time, the expanding die on the turntable also rotates with the turntable. When the expanding die suitable for the diameter of the pipe rotates to the bottom, the hydraulic telescopic device is turned on to extend the telescopic end of the hydraulic telescopic device. At this time, the telescopic end of the hydraulic telescopic device pushes the sliding block to move in the slide groove until the expanding die contacts and expands the pipe, making the replacement of different expanding dies more flexible and reducing the workload of personnel. At the same time, when the diameter to be expanded is large, a smaller-sized expanding die can be selected for expansion first, and then the size of the expanding die can be increased in sequence until the target diameter is reached, so as to prevent the pipe from being broken due to direct large-diameter expansion.

[0017] 2. The utility model can fix pipes of different diameters through the arc-shaped fixing block and the arc-shaped placing block. When expanding the pipe, place the pipe on the arc-shaped placing block, and then rotate the rotating rod. When the rotating rod rotates, the thread on the rotating rod will push the rotating rod to move up or down. At this time, the arc-shaped fixing block at the lower end of the rotating rod also moves up and down with the rotating rod. When the arc-shaped fixing block moves downward and enters the clamping groove inside the arc-shaped placing block, the distance between the arc-shaped fixing block and the arc-shaped placing block is reduced and squeezes and fixes the pipe. When fixing pipes of different diameters, the depth of the arc-shaped fixing block entering the clamping groove is different, so pipes of different diameters can be clamped, which improves the adaptability of the expanding equipment to pipes of different diameters.

[0018] 3. The utility model can flexibly change the height of the mounting table through the electric push rod. When fixing pipes of different diameters, the opening of the pipe does not correspond to the expanding mold. The electric push rod is turned on to extend the telescopic end of the electric push rod. The mounting table is driven to move in the vertical direction through the extended telescopic end of the electric push rod. When it moves to a suitable position, the position of the pipe corresponds to the expanding mold, thereby avoiding damage to the pipe when expanding the pipe after replacing pipes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the internal structure of the utility model;

[0020] Figure 2 It is a side view of the internal structure of the utility model;

[0021] Figure 3 It is a side view of the expansion die structure of the utility model;

[0022] Figure 4 It is a partial schematic diagram of the clamping structure of the utility model.

[0023] In the figure: 1. frame; 2. workbench; 3. fixed seat; 4. mounting table; 5. electric push rod; 6. arc placement block; 7. mounting frame; 8. clamping groove; 9. arc fixing block; 10. turntable; 11. expansion mold; 12. sliding block; 13. stepping motor; 14. slide groove; 15. pulley; 16. hydraulic telescopic device; 17. rotating rod; 18. limit groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a small-diameter pipe expansion device, including a frame 1, and the frame 1 is provided with two, the upper end of the frame 1 is provided with a workbench 2, and the workbench 2 is fixedly connected to the frame 1; and also includes:

[0026] A fixed seat 3 is arranged on one side of the upper end of the workbench 2, a slide groove 14 is arranged above one side of the interior of the fixed seat 3, a sliding block 12 is arranged inside the slide groove 14, and the upper end of the sliding block 12 extends to the upper side of the fixed seat 3;

[0027] A stepper motor 13 is arranged inside the workbench 2, and the output shaft of the stepper motor 13 extends to the outside of the sliding block 12. A turntable 10 is arranged on one side of the output shaft of the stepper motor 13 outside the sliding block 12, and the turntable 10 is fixedly connected to the output shaft of the stepper motor 13. Eight expanding molds 11 are arranged on one side of the turntable 10 and are equidistantly distributed in a ring shape, and the sizes of the expanding molds 11 increase sequentially.

[0028] During use, after the pipe is fixed, the stepper motor 13 is turned on, so that the output shaft of the stepper motor 13 drives the turntable 10 to rotate. At this time, the expanding mold 11 on the turntable 10 also rotates with the turntable 10. When the expanding mold 11 suitable for the diameter of the pipe rotates to the bottom, the hydraulic telescopic device 16 is turned on to extend the telescopic end of the hydraulic telescopic device 16. At this time, the telescopic end of the hydraulic telescopic device 16 pushes the sliding block 12 to move in the slide groove 14 until the expanding mold 11 contacts and expands the pipe, making the replacement of different expanding molds 11 more flexible and reducing the workload of personnel. At the same time, when the diameter to be expanded is large, a smaller-sized expanding mold 11 can be selected for expansion first, and then the size of the expanding mold 11 can be increased successively until the target diameter is reached to prevent the pipe from being broken due to direct large-diameter expansion.

[0029] See also Figure 1 A mounting platform 4 is provided on the other side of the upper end of the workbench 2, an arc-shaped placement block 6 is provided on the upper end of the mounting platform 4, and the arc-shaped placement block 6 is fixedly connected to the mounting platform 4, mounting frames 7 are provided on both sides of the upper end of the arc-shaped placement block 6, and the mounting frame 7 is fixedly connected to the arc-shaped placement block 6, and the front and rear ends of the mounting frame 7 are provided with limiting grooves 18, and a rotating rod 17 is provided at the upper end of the horizontal plate of the mounting frame 7, and the other end of the rotating rod 17 extends to the bottom of the horizontal plate of the mounting frame 7, which is convenient for placing pipes of different calibers.

[0030] See also Figure 1 , electric push rods 5 are arranged at the four corners of the lower end of the mounting platform 4. And the electric push rods 5 are fixedly connected to the mounting platform 4 and the workbench 2 respectively, so as to facilitate the adjustment of the height of the mounting platform 4.

[0031] See also Figure 1 and Figure 2 Pulleys 15 are provided on both sides of the front and rear ends of the sliding block 12 inside the sliding groove 14 , and the pulleys 15 are slidably matched with the sliding groove 14 to facilitate the movement of the sliding block 12 in the sliding groove 14 .

[0032] See also Figure 1 A hydraulic telescopic device 16 is provided on one side of the fixed seat 3, the hydraulic telescopic device 16 is fixedly connected to the fixed seat 3, and the telescopic end of the hydraulic telescopic device 16 is fixedly connected to the sliding block 12, so as to facilitate pushing the sliding block 12 to move.

[0033] See also Figure 1 An arc-shaped fixing block 9 is arranged inside the limiting groove 18, and the arc-shaped fixing block 9 is rotatably connected to the rotating rod 17, so that the arc-shaped fixing block 9 can move in the vertical direction.

[0034] See also Figure 1 and Figure 4Clamping grooves 8 are provided on both sides of the front and rear ends of the arc-shaped placement block 6, and the clamping grooves 8 correspond to the positions of the arc-shaped fixing blocks 9, so as to facilitate clamping and fixing pipes of different calibers.

[0035] Working principle: When expanding the pipe fitting, place the pipe fitting on the arc-shaped placement block 6, and then rotate the rotating rod 17. When the rotating rod 17 rotates, the thread on the rotating rod 17 will push the rotating rod 17 to move up or down. At this time, the arc-shaped fixed block 9 at the lower end of the rotating rod 17 also moves up and down with the rotating rod 17. When the arc-shaped fixed block 9 moves downward and enters the clamping groove 8 inside the arc-shaped placement block 6, the distance between the arc-shaped fixed block 9 and the arc-shaped placement block 6 is reduced and the pipe fitting is squeezed and fixed. When fixing pipe fittings of different calibers, the depth of the arc-shaped fixed block 9 entering the clamping groove 8 is different. When fixing pipe fittings of different calibers, the opening of the pipe fitting does not correspond to the expanding mold 11. The electric push rod 5 is turned on to extend the telescopic end of the electric push rod 5. The extended telescopic end of the electric push rod 5 drives the mounting platform 4 to move in the vertical direction. When it moves to a suitable position, the position of the pipe fitting corresponds to the expanding mold 11, avoiding damage to the pipe fitting when expanding the pipe after replacing pipe fittings of different calibers.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A small-diameter pipe expanding device, comprising a frame (1), wherein two frames (1) are provided, a workbench (2) is provided at the upper end of the frame (1), and the workbench (2) is fixedly connected to the frame (1); Features: Also includes: A fixed seat (3) is arranged on one side of the upper end of the workbench (2), a slide groove (14) is arranged above one side of the interior of the fixed seat (3), a sliding block (12) is arranged inside the slide groove (14), and the upper end of the sliding block (12) extends to the top of the fixed seat (3); A stepper motor (13) is arranged inside the workbench (2), and the output shaft of the stepper motor (13) extends to the outside of the sliding block (12); a turntable (10) is arranged on one side of the output shaft of the stepper motor (13) outside the sliding block (12), and the turntable (10) is fixedly connected to the output shaft of the stepper motor (13); and eight expanding dies (11) are arranged on one side of the turntable (10) and are equidistantly distributed in a ring shape, and the sizes of the expanding dies (11) are increased in sequence.

2. A small-diameter pipe expanding device according to claim 1, characterized in that: A mounting platform (4) is provided on the other side of the upper end of the workbench (2); an arc-shaped placement block (6) is provided on the upper end of the mounting platform (4), and the arc-shaped placement block (6) is fixedly connected to the mounting platform (4); mounting frames (7) are provided on both sides of the upper end of the arc-shaped placement block (6), and the mounting frames (7) are fixedly connected to the arc-shaped placement block (6); limiting grooves (18) are provided at the front and rear ends of the mounting frames (7); a rotating rod (17) is provided at the upper end of the horizontal plate of the mounting frame (7), and the other end of the rotating rod (17) extends to the bottom of the horizontal plate of the mounting frame (7).

3. The small-diameter pipe expanding device according to claim 2, characterized in that: Electric push rods (5) are provided at the four corners of the lower end of the mounting platform (4), and the electric push rods (5) are fixedly connected to the mounting platform (4) and the workbench (2) respectively.

4. The small-diameter pipe expanding device according to claim 1, characterized in that: Pulleys (15) are provided on both sides of the front and rear ends of the sliding block (12) located inside the sliding groove (14), and the pulleys (15) are slidably matched with the sliding groove (14).

5. The small-diameter pipe expanding device according to claim 1, characterized in that: A hydraulic telescopic device (16) is provided on one side of the fixed seat (3); the hydraulic telescopic device (16) is fixedly connected to the fixed seat (3), and a telescopic end of the hydraulic telescopic device (16) is fixedly connected to the sliding block (12).

6. The small-diameter pipe expanding device according to claim 2, characterized in that: An arc-shaped fixing block (9) is arranged inside the limiting groove (18), and the arc-shaped fixing block (9) is rotatably connected to the rotating rod (17).

7. The small-diameter pipe expanding device according to claim 2, characterized in that: Clamping grooves (8) are provided on both sides of the front and rear ends of the arc-shaped placement block (6), and the positions of the clamping grooves (8) and the arc-shaped fixing block (9) correspond.

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