Pipe bending device for production of lining stainless steel pipe fitting

Abstract

The utility model provides a pipe bending device for producing a stainless steel lined pipe fitting. Relates to the technical field of metal pipe fitting machining equipment. The pipe bending device for production of the lining stainless steel pipe fitting comprises a mounting chassis, a central rotating shaft is rotationally mounted on the mounting chassis, a first servo motor is fixedly mounted at the bottom of the mounting chassis, an output shaft of the first servo motor is fixedly connected with the bottom end of the central rotating shaft, a pipe bending die is fixedly mounted on the mounting chassis, and the first servo motor is fixedly connected with the bottom end of the central rotating shaft. The central rotating shaft penetrates through the pipe bending die and is movably connected with the pipe bending die, the central rotating shaft and the pipe bending die are located on the same axis, a first rotating arm is fixedly installed on the central rotating shaft, and the first rotating arm and the pipe bending die are distributed in a 90-degree mode. The pipe bending device has the advantages that the pipe can be bent into various angles according to actual requirements, and the operation flexibility is high.

Description

Technical Field

[0001] The utility model relates to the technical field of metal pipe processing equipment, in particular to a pipe bending device for producing lined stainless steel pipes. Background Art

[0002] Lined stainless steel pipe is a steel pipe with a thin-walled stainless steel pipe composited on the inner wall of the pipe through a specific process. This type of pipe fitting can combine the characteristics of stainless steel pipe and has high internal corrosion resistance. Therefore, it is widely used in industrial pipeline systems such as chemical and pharmaceutical industries. In the production process of lined stainless steel pipe fittings, in order to make it suitable for actual applications, it is sometimes necessary to bend the pipe so that it can change the direction of the passage. Therefore, during the processing process, it will be bent by a pipe bender to obtain the corresponding bent pipe fittings.

[0003] However, it is found that most common pipe bending equipment can only form 90° or 180° bends when used. It is difficult to bend into other uncommon angles according to actual needs, and the actual operation is quite limited.

[0004] Therefore, it is necessary to provide a new pipe bending device for producing lined stainless steel pipe fittings to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a pipe bending device for producing lined stainless steel pipe fittings, which can bend pipe fittings into various angles according to actual needs and has high operational flexibility.

[0006] In order to solve the above technical problems, the utility model provides a pipe bending device for the production of lined stainless steel pipe fittings, which includes: a mounting chassis, a central rotating shaft is rotatably mounted on the mounting chassis, a first servo motor is fixedly mounted on the bottom of the mounting chassis, the output shaft of the first servo motor is fixedly connected to the bottom end of the central rotating shaft, a pipe bending die is fixedly mounted on the mounting chassis, the central rotating shaft passes through the pipe bending die and is movably connected to the pipe bending die, and the central rotating shaft and the pipe bending die are on the same axis, a first rotating arm is fixedly mounted on the central rotating shaft, and the first rotating arm is fixedly mounted on the first rotating shaft. A rotating arm is distributed at 90° to the pipe bending die, and a support plate is fixedly installed on one side of the first rotating arm, and a mounting panel is fixedly installed on the top of the support plate, and a vertical plate is fixedly installed on the mounting panel, and a hydraulic cylinder is fixedly installed on the vertical plate. The output shaft of the hydraulic cylinder passes through the vertical plate and is movably connected to the vertical plate, and a pressure bending head is fixedly installed on the output shaft of the hydraulic cylinder, and an angle bending plate is fixedly installed on the mounting chassis, and a marking head is fixedly installed on the side of the support plate close to the angle bending plate, and the marking head is adapted to the angle bending plate.

[0007] Preferably, an arc rod is fixedly installed on the mounting chassis, an adapter sleeve is provided on the rotating sleeve of the central rotating shaft, a second rotating arm is fixedly installed on the adapter sleeve, a connecting seat is slidably installed on the arc rod, the top of the connecting seat is fixedly connected to the second rotating arm, a back plate is fixedly installed on the second rotating arm, a limiting plate is fixedly installed on the back plate, and the angle bent plate passes through the limiting plate and is slidably connected to the limiting plate.

[0008] Preferably, a top screw is threadedly installed on the connecting seat, and the top screw conflicts with the arc rod.

[0009] Preferably, a gantry is fixedly mounted on the mounting chassis, a bidirectional screw is rotatably mounted in the gantry, two linkage plates are threadedly mounted on the bidirectional screw, and arc-shaped clips are fixedly mounted on the sides of the two linkage plates close to each other.

[0010] Preferably, a second servo motor is fixedly mounted on one side outer wall of the gantry, the output shaft of the second servo motor is fixedly connected to one end of the bidirectional screw, a limiting slide is fixedly mounted inside the gantry, the limiting slide passes through the two linkage plates and is slidably connected to the two linkage plates.

[0011] Preferably, two support plates are fixedly installed on the top of the mounting chassis, and the tops of the two support plates are fixedly connected to the pipe bending mold. Two first support bars are fixedly installed on the top of the mounting chassis, and the two sides of the angle bending plate are respectively fixedly connected to the two first support bars.

[0012] Preferably, two second support bars are fixedly mounted on the top of the mounting chassis, and both ends of the arc-shaped rod are fixedly connected to the two second support bars respectively.

[0013] Compared with the related art, the pipe bending device for producing lined stainless steel pipe fittings provided by the utility model has the following beneficial effects:

[0014] The utility model provides a pipe bending device for the production of lined stainless steel pipe fittings. Through the cooperation between the marking head and the angle bending plate, the pipe can be bent into a specified angle according to the actual pipe bending requirements. Before bending, the limiting piece is adjusted to the final angle position so that the marking head has a movement limit of the final position, thereby ensuring the accuracy of the bending angle of the pipe fitting. During the bending process, the bending head can always fit the pipe fitting for bending, so that the surface of the pipe fitting is still relatively smooth after bending, and the bending effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a pipe bending device for producing lined stainless steel pipe fittings provided by the present invention;

[0016] Figure 2 This is a schematic diagram of the connection structure of the connecting seat and the top screw in the utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the support plate and the mounting panel in the present invention;

[0018] Figure 4 This is a schematic diagram of the internal structure of the gantry in the present utility model;

[0019] Figure 5 Schematic diagram of the top view of the connection structure between the first rotating arm and the support plate in the present invention;

[0020] Figure 6 This is a schematic diagram of the processing and placement position of the lined stainless steel pipe fittings in this utility model.

[0021] Numbers in the figure: 1. Mounting chassis; 2. Center rotating shaft; 3. Tube bending mold; 4. First rotating arm; 5. Support plate; 6. Mounting panel; 7. Hydraulic cylinder; 8. Vertical connecting plate; 9. Press bend; 10. Marking head; 11. Angle bending plate; 12. Arc rod; 13. Adapter sleeve; 14. Second rotating arm; 15. Back plate; 16. Limit plate; 17. Connecting seat; 18. Top screw; 19. Gantry; 20. Bidirectional screw; 21. Linkage plate; 22. Arc clamp. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0023] Please refer to Figures 1-6 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a pipe bending device for producing lined stainless steel pipe fittings provided by the present invention; Figure 2 This is a schematic diagram of the connection structure of the connecting seat and the top screw in the utility model; Figure 3 This is a schematic diagram of the connection structure between the support plate and the mounting panel in the present invention; Figure 4 This is a schematic diagram of the internal structure of the gantry in the present utility model; Figure 5 Schematic diagram of the top view of the connection structure between the first rotating arm and the support plate in the present invention; Figure 6The figure is a schematic diagram of the processing and placement position of the lined stainless steel pipe fittings in the present invention. The pipe bending device for the production of lined stainless steel pipe fittings includes: a mounting chassis 1, and a central rotating shaft 2 is rotatably mounted on the mounting chassis 1, and a first servo motor is fixedly mounted on the bottom of the mounting chassis 1, and its output shaft is fixedly connected to the bottom end of the central rotating shaft 2, and two support plates are fixedly mounted on the top of the mounting chassis 1, and the same pipe bending die 3 is fixed on the top of the two support plates. The die head of the pipe bending die 3 is the same as the die head of a common pipe bending die, and both are in a semi-circular head state, and the central rotating shaft 2 is set to pass through the pipe bending die 3 and is movably connected to the pipe bending die 3, and the central rotating shaft 2 and the pipe bending die 3 are on the same axis, and a first rotating arm 4 is fixedly mounted on the central rotating shaft 2. The first rotating arm 4 is distributed at 90° to the pipe bending die 3. A support plate 5 is fixedly installed on one side of the first rotating arm 4, and a mounting panel 6 is fixedly installed on the top. A vertical plate 8 is fixedly installed on the mounting panel 6, and a hydraulic cylinder 7 is fixedly installed on the vertical plate 8. Its output shaft passes through the vertical plate 8 and is movably connected to the vertical plate 8, and a bending head 9 is fixedly installed on the output shaft of the hydraulic cylinder 7 for bending pipe fittings. Two first support bars are fixedly installed on the mounting chassis 1, and the same angle bending plate 11 is fixed on the two first support bars, and a marking head 10 is fixedly installed on the side of the support plate 5 close to the angle bending plate 11, and the marking head 10 is adapted to the angle bending plate 11.

[0024] In the above method, in order to improve the accuracy of the bending angle, the marking head 10 is given a final position movement limit, two second support bars are fixedly installed on the top of the mounting chassis 1, and the same arc rod 12 is fixedly installed on the two second support bars. An adapter sleeve 13 is rotatably mounted on the central shaft 2, and a second rotating arm 14 is fixedly mounted on the adapter sleeve 13. A connecting seat 17 is slidably mounted on the arc rod 12, and the top of the connecting seat 17 is fixedly connected to the second rotating arm 14, and a back plate 15 is fixedly mounted on the second rotating arm 14. A limit plate 16 is fixedly mounted on the back plate 15, and the angle The bent plate 11 passes through the limiting piece 16 and is slidably connected to the limiting piece 16, and the side of the marking head 10 close to the limiting piece 16 is in the same plane as the central section of the central rotating shaft 2, and the side of the limiting piece 16 close to the marking head 10 is also in the same plane as the central section of the central rotating shaft 2. In this way, the position of the limit can be determined by simply observing the side of the limiting piece 16, which is convenient for people to adjust the operation. In addition, after the limiting piece 16 is adjusted to the position, in order to fix it in this position, a top screw 18 is threadedly installed on the connecting seat 17, and the top screw 18 conflicts with the arc rod 12.

[0025] In this method, in order to clamp the pipe fittings, a gantry 19 is fixedly installed on the mounting chassis 1, and a bidirectional screw 20 is rotatably installed in the gantry 19. Two linkage plates 21 are threadedly installed on the bidirectional screw 20. An arc-shaped clamp 22 is fixedly installed on the side where the two linkage plates 21 are close to each other, and a second servo motor is fixedly installed on the outer wall of one side of the gantry 19, and its output shaft is fixedly connected to one end of the bidirectional screw 20. A limiting slide is fixedly installed in the gantry 19, and the limiting slide passes through the two linkage plates 21 and is slidably connected to the two linkage plates 21.

[0026] The working principle of the pipe bending device for producing lined stainless steel pipe fittings provided by the utility model is as follows:

[0027] When the lined stainless steel pipe needs to be bent, the pipe is first passed through the two arc-shaped clips 22 and inserted into the pipe bending die 3. After it is inserted into place, the second servo motor is started in the positive direction, and its output shaft drives the bidirectional screw 20 to rotate, so that the two linkage plates 21 approach each other, and finally the pipe is clamped by the arc-shaped clips 22;

[0028] Then, the output shaft of the hydraulic cylinder 7 is extended, and the bending head 9 is moved toward the pipe fitting and abutted against the pipe fitting. Then, the position of the limit piece 16 is adjusted according to the actual bending angle requirement. When adjusting, the top screw 18 is first screwed to separate it from the arc rod 12, thereby removing the clamping force between the connecting seat 17 and the arc rod 12, and then the second rotating arm 14 is rotated. When the limit piece 16 is close to one side of the support plate 5 and rotates to the specified angle line, it stops rotating, and screws the top screw 18 to fix the connecting seat 17 in the specified position. Then, the first rotating arm 14 is started in the forward direction. The servo motor, whose output shaft drives the central shaft 2 to rotate, can then drive the first rotating arm 4 to rotate. At this time, the rotating bending head 9 can form a hard squeeze on the pipe fitting, so that the pipe fitting begins to bend along the inner wall of the bending die 3. When the marking head 10 rotates to contact the limit piece 16, first start the first servo motor in reverse, and then start the output shaft of the hydraulic cylinder 7 to retract, and bring the bending head 9 back to its original position. At this time, the pipe fitting has completed the bending work, and then start the second servo motor in reverse to make the arc-shaped clamp 22 loosen the pipe fitting, and then the pipe fitting can be taken out.

[0029] Compared with the related art, the pipe bending device for producing lined stainless steel pipe fittings provided by the utility model has the following beneficial effects:

[0030] The utility model provides a pipe bending device for the production of lined stainless steel pipe fittings. Through the cooperation between the marking head 10 and the angle bending plate 11, the pipe can be bent into a specified angle according to the actual pipe bending requirements. Before bending, the limiting piece 16 is adjusted to the final angle position so that the marking head 10 has a movement limit of the final position, thereby ensuring the accuracy of the bending angle of the pipe fitting. In the bending process, the bending head 9 can always fit the pipe fitting for bending, so that the surface of the pipe fitting is still relatively smooth after bending, and the bending effect is better.

[0031] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pipe bending device for producing lined stainless steel pipe fittings, comprising a mounting chassis, characterized in that: The cam is fixedly provided with a first end in contact with the bottom end of the hydraulic cylinder, and the output shaft of the hydraulic cylinder is fixedly connected to the bottom end of the hydraulic cylinder. The hydraulic cylinder is fixedly provided with a first end in contact with the bottom end of the hydraulic cylinder, and the output shaft of the hydraulic cylinder is fixedly connected to the bottom end of the hydraulic cylinder. The hydraulic cylinder is fixedly provided with a first end in contact with the bottom end of the hydraulic cylinder, and the output shaft of the hydraulic cylinder is fixedly connected to the bottom end of the hydraulic cylinder. The hydraulic cylinder is fixedly provided with an angle bending plate, and a marking head is fixedly installed on the side of the support plate close to the angle bending plate, and the marking head is adapted to the angle bending plate.

2. The pipe bending device for producing lined stainless steel pipe fittings according to claim 1, characterized in that: An arc-shaped rod is fixedly mounted on the mounting chassis, an adapter sleeve is rotatably mounted on the central rotating shaft, a second rotating arm is fixedly mounted on the adapter sleeve, a connecting seat is slidably mounted on the arc-shaped rod, the top of the connecting seat is fixedly connected to the second rotating arm, a back plate is fixedly mounted on the second rotating arm, a limiting plate is fixedly mounted on the back plate, and the angle bent plate passes through the limiting plate and is slidably connected to the limiting plate.

3. The pipe bending device for producing lined stainless steel pipe fittings according to claim 2, characterized in that: A jack screw is threadedly mounted on the connecting seat, and the jack screw conflicts with the arc rod.

4. The pipe bending device for producing lined stainless steel pipe fittings according to claim 1, characterized in that: A gantry is fixedly mounted on the mounting chassis, a bidirectional screw is rotatably mounted in the gantry, two linkage plates are threadedly mounted on the bidirectional screw, and arc-shaped clips are fixedly mounted on the sides of the two linkage plates that are close to each other.

5. The pipe bending device for producing lined stainless steel pipe fittings according to claim 4, characterized in that: A second servo motor is fixedly installed on an outer wall of one side of the gantry, and the output shaft of the second servo motor is fixedly connected to one end of the bidirectional screw. A limiting slide bar is fixedly installed inside the gantry, and the limiting slide bar passes through the two linkage plates and is slidably connected to the two linkage plates.

6. The pipe bending device for producing lined stainless steel pipe fittings according to claim 1, characterized in that: Two support plates are fixedly installed on the top of the mounting chassis, and the tops of the two support plates are fixedly connected to the pipe bending mold. Two first support bars are fixedly installed on the top of the mounting chassis, and the two sides of the angle bent plate are fixedly connected to the two first support bars respectively.

7. The pipe bending device for producing lined stainless steel pipe fittings according to claim 2, characterized in that: Two second support bars are fixedly mounted on the top of the mounting chassis, and both ends of the arc-shaped rod are fixedly connected to the two second support bars respectively.

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