A multi-layer film fully automatic pipe bending device

Abstract

The present application relates to a multi-layer film fully automatic pipe bending device, the pipe bending mechanism includes a head mounting frame, the head mounting frame is slidably arranged on the frame along the Y-Z axis, and a first driving motor in the horizontal direction is arranged on the head mounting frame; a rotating shaft rotating around the Z axis is arranged on the head mounting frame, and a pair of helical gear sets are arranged between the power output shaft of the first driving motor and the rotating shaft for transmission connection; a first pipe bending assembly is also fixedly connected to the rotating shaft, a second pipe bending assembly is arranged on the head mounting frame, and a first pipe clamp for positioning and supporting the pipe is arranged on the action output part of the first pipe bending assembly. By adjusting the clamping mold and the fixture of the pipe bending mechanism to align and match with the steel pipe, the processing requirements of multiple bending radii of the steel pipe can be realized in one processing process, thereby improving the diversity of product processing; the helical gear transmission structure can improve the transmission accuracy, and the head structure is simple, and the overall size is flat and compact, which reduces the risk of interfering with the pipe during the pipe bending process.

Description

Technical Field

[0001] The present application belongs to the technical field of pipe bending machines, and in particular to a multi-layer film fully automatic pipe bending device. Background Art

[0002] In the traditional pipe processing industry, pipe bending is a basic and important process. This process requires precise bending according to the specifications, materials, and required bending angles and radii of the pipes. Traditional pipe bending machines are mainly of two types: manual and automatic. The operation of manual pipe bending machines mainly relies on the skills and experience of the operator to control the bending angle and shape of the pipe, which is not only inefficient, but also difficult to ensure the accuracy and repeatability of the bending. Although the existing automatic pipe bending machines have improved the shortcomings of manual operation to a certain extent and achieved partial automation of the pipe bending process through mechanical or electronic control, there is a problem that the bending accuracy is difficult to meet high standards, and the existing equipment has a large head part. For pipes with longer lengths and greater curvature, it is easy for the head to interfere with the pipe during processing. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve the deficiencies in the prior art, thereby providing a multi-layer film fully automatic pipe bending device, aiming to achieve at least one of the following technical effects: one is to improve production efficiency and processing accuracy; the other is to simplify the head structure to avoid interference with the pipe during the bending process.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A multi-layer film fully automatic tube bending device comprises a frame;

[0006] A pipe bending mechanism is provided at one end of the frame, and the pipe bending mechanism includes a head mounting frame, and the head mounting frame is slidably arranged on the frame along the YZ axis, and a first driving motor in a horizontal direction is arranged on the head mounting frame;

[0007] The head mounting frame is provided with a rotating shaft that rotates around the Z-axis direction, and a pair of helical gear sets are provided between the power output shaft of the first drive motor and the rotating shaft for transmission connection;

[0008] The rotating shaft is also fixedly connected with a first bending pipe assembly, the head mounting frame is provided with a second bending pipe assembly, the action output part of the first bending pipe assembly is provided with a first pipe clamping block for positioning and supporting the pipe, and the action output part of the second bending pipe assembly is provided with a second pipe clamping block for positioning and supporting the pipe;

[0009] The rotating shaft is also coaxially fixedly connected with a bending pipe guide die, and the bending pipe guide die is provided with a U-shaped groove;

[0010] It also includes a pipe loader, which is used for feeding pipes. A three-axis manipulator for loading and unloading pipes is also arranged on the frame.

[0011] Preferably, in a multi-layer film fully automatic pipe bending device of the utility model, the first pipe bending assembly includes a first tooling frame and a first mold frame, the first mold frame is slidably connected to the first tooling frame along its length direction, and the second pipe clamp is slidably connected to the first mold frame along the X-axis direction.

[0012] Preferably, in a multi-layer film fully automatic pipe bending device of the utility model, the second pipe bending assembly includes a second tooling frame and a second mold frame, the second mold frame is slidably connected to the second tooling frame along the Y-axis direction, and the second pipe clamp is slidably connected to the second mold frame along the X-axis direction.

[0013] Preferably, in the fully automatic tube bending device for multi-layer films of the utility model, connecting rod assemblies are provided in both the first tooling frame and the second tooling frame, and the connecting rod assemblies are used to drive the first mold frame and the second mold frame to slide.

[0014] Preferably, in a multi-layer film fully automatic tube bending device of the utility model, the connecting rod assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the inner wall of the first tooling frame or the second tooling frame, and the other end is hinged to the second connecting rod, and the other end of the second connecting rod is hinged to the bottom of the first mold frame or the second mold frame.

[0015] Preferably, in the multi-layer film fully automatic tube bending device of the utility model, a first driving cylinder is further hinged on the first tooling frame or the second tooling frame, and the end of the telescopic rod of the first driving cylinder is hinged to the first connecting rod.

[0016] Preferably, a multi-layer film fully automatic pipe bending device of the utility model also includes a pipe feeding mechanism, a guide rail slider mechanism and a rack are slidably arranged on the frame along the X-axis direction, the pipe feeding mechanism includes a slide plate connected to the slide plate of the guide rail slider mechanism, a hollow main shaft for rotational driving and inserting pipes is slidably arranged on the slide plate along the Y-axis direction, an elastic multi-jaw structure is arranged at the front end of the hollow main shaft, the outer wall surface of the multi-jaw structure is arranged as an inclined surface inclined outward and upward, a sleeve is movably sleeved on the hollow main shaft, and the sleeve is used to squeeze the outer wall inclined surface of the multi-jaw structure when sliding along the end of the hollow main shaft, so that the multi-jaw structure clamps the pipe in the hollow main shaft.

[0017] Preferably, in a multi-layer film fully automatic pipe bending device of the utility model, a third driving cylinder is hinged on the box body of the hollow main shaft, the telescopic shaft end of the third driving cylinder is hinged to the sleeve, and the third driving cylinder is used to drive the multi-claw structure of the front end inner wall of the sleeve to squeeze or move away from the end of the hollow main shaft.

[0018] Preferably, in a multi-layer film fully automatic pipe bending device of the utility model, a second driving motor is also provided on the slide plate, a gear is fixedly connected to the power output shaft of the second driving motor, and the gear is meshed with the rack to drive the slide plate to slide along the guide rail of the guide rail slider mechanism to feed the pipe.

[0019] The beneficial effects of the utility model are:

[0020] (1) The utility model provides two or more sets of different types of bending mechanism clamping dies and fixtures on one machine head, and adjusts the bending mechanism clamping dies and fixtures to align and match with the steel pipe, so as to realize the processing requirements of multiple bending radii of the steel pipe in one processing process, thereby improving the diversity of product processing;

[0021] (2) Compared with the traditional sprocket transmission method, the helical gear transmission structure provided in the utility model can improve the transmission accuracy, thereby improving the processing accuracy of the pipe bending, and the head structure is simple, the overall size is flat and compact, and the risk of interfering with the pipe during the pipe bending process is reduced;

[0022] (3) The gear transmission structure is built into the head mounting frame, which improves the safety of processing. The gear transmission structure is set at a low height, which can reduce the height of the bending processing position and facilitate the loading and unloading of pipes.

[0023] (4) By setting up a pipe bending mechanism and a pipe feeding mechanism, automatic pipe feeding and pipe bending operations are realized, thereby improving production efficiency and processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of the structure of a pipe bending mechanism in an embodiment of the present application;

[0027] Figure 3 is a schematic cross-sectional view of a driving structure of a pipe bending mechanism according to an embodiment of the present application;

[0028] Figure 4 is a schematic cross-sectional structure diagram of a connecting rod assembly according to an embodiment of the present application;

[0029] Figure 5 It is a schematic diagram of the structure of the pipe feeding mechanism of an embodiment of the present application;

[0030] Figure 6 Schematic diagram of the cross-sectional structure of the hollow main shaft of an embodiment of the present application;

[0031] The reference numerals in the figure are:

[0032] Frame 10, pipe bending mechanism 20, pipe feeding mechanism 30, pipe loading machine 40, three-axis manipulator 50;

[0033] Guide rail and slider mechanism 11, rack 12, head mounting frame 21, first drive motor 22, bevel gear set 23, rotating shaft 24, connecting rod assembly 25, first bending pipe assembly 26, second bending pipe assembly 27, bending pipe guide die 28, screw drive device 29, slide plate 31, hollow spindle 32, sleeve 33, third drive cylinder 34, second drive motor 35, fourth drive motor 36, spindle mounting seat 37;

[0034] Driving bevel gear 231 , driven bevel gear 232 , first connecting rod 251 , second connecting rod 252 , first driving cylinder 253 , first pipe clamp 261 , first tooling frame 262 , first mold frame 263 , second pipe clamp 271 , second tooling frame 272 , second mold frame 273 , second driving cylinder 274 . DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0038] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0039] Example

[0040] This embodiment provides a multi-layer film automatic tube bending machine, the structure of which is as shown in FIG. Figure 1 , including a frame 10, a pipe bending mechanism 20, a pipe feeding mechanism 30, a pipe loader 40 and a three-axis manipulator 50.

[0041] A bending mechanism 20 is provided at one end of the frame 10. Figure 2 and Figure 3 The pipe bending mechanism 20 includes a head mounting frame 21, and guide rail sliders in the Y-axis and Z-axis directions are set between the head mounting frame 21 and the frame 10 to realize the sliding of the head mounting frame 21 in the YZ plane, and a screw drive device 29 in the Y-axis and Z-axis directions is set to drive the head mounting frame 21 to slide in the YZ plane.

[0042] A first drive motor 22 arranged in a horizontal direction is installed on the head mounting frame 21, and the power output shaft of the first drive motor 22 is connected to a driving bevel gear 231 through a reducer. A rotating shaft 24 is rotatably connected to the head mounting frame 21 around the Z axis through a bearing, and a driven bevel gear 232 meshing with the driving bevel gear 231 is coaxially fixedly connected to the rotating shaft 24.

[0043] The rotating shaft 24 is also fixedly connected to a first pipe bending assembly 26 and a pipe bending guide mold 28. The first pipe bending assembly 26 includes a first pipe clamp block 261, a first tooling frame 262 and a first mold frame 263. The first pipe clamp block 261 is configured as a concave structure. Two arc grooves for positioning and clamping pipes are arranged in parallel on the first pipe clamp block 261. The first mold frame 263 is slidably connected to the first tooling frame 262 along its length direction through a guide rail slider. The first pipe clamp block 261 is fixedly connected to the first mold frame 263.

[0044] Preferably, in a multi-layer film fully automatic pipe bending device of this embodiment, the second pipe bending assembly 27 includes a first pipe clamp 271, a second tooling frame 272 and a second mold frame 273, the second mold frame 273 is slidably connected to the second tooling frame 272 along the Y-axis direction, the second pipe clamp 271 is slidably connected to the second mold frame 273 along the X-axis direction, and a second driving cylinder 274 for driving the second pipe clamp 271 to slide on the second mold frame 273 is respectively arranged between the second pipe clamp 271 and the second mold frame 273, the second pipe clamp 271 is arranged to be a concave structure, and two arc grooves for positioning and clamping pipes are arranged in parallel on the second pipe clamp 271, and are aligned with the first pipe clamp 261.

[0045] Preferably, in the fully automatic tube bending device for multi-layer films of the present embodiment, a connecting rod assembly 25 is provided in both the first tooling frame 262 and the second tooling frame 272 , and the connecting rod assembly 25 is used to drive the first mold frame 263 and the second mold frame 273 to slide.

[0046] Preferably, a multi-layer film fully automatic tube bending device of this embodiment, referring to Figure 4 The connecting rod assembly 25 includes a first connecting rod 251 and a second connecting rod 252. One end of the first connecting rod 251 is hinged to the inner wall of the first tooling frame 262 or the second tooling frame 272, and the other end is hinged to the second connecting rod 252. The other end of the second connecting rod 252 is hinged to the bottom of the first mold frame 263 or the second mold frame 273.

[0047] Preferably, in the multi-layer film fully automatic tube bending device of the present embodiment, a first driving cylinder 253 is further hinged on the first fixture frame 262 or the second fixture frame 272 , and the end of the telescopic rod of the first driving cylinder 253 is hinged to the first connecting rod 251 .

[0048] During actual operation, the first driving cylinder 253 telescopes to push the first connecting rod 251 and the second connecting rod 252 to rotate, and the first connecting rod 251 pushes the first mold frame 263 and the second mold frame 273 to slide, thereby achieving the first pipe clamp block 261 and the second pipe clamp block 271 approaching or moving away from the U-shaped ring groove.

[0049] Preferably, in a multi-layer film fully automatic tube bending device of the present embodiment, a tube bending guide mold 28 is provided with a U-shaped annular groove for clamping the tube at the upper and lower ends along the circumference of its outer wall, and the two U-shaped annular grooves are different in size and are respectively at the same height as the two arc grooves of the first pipe clamp block 261. The first pipe clamp block 261 and the second pipe clamp block 271 are used to clamp the tube when the U-shaped annular grooves are molded together.

[0050] Preferably, a multi-layer film fully automatic tube bending device of this embodiment, referring to Figure 6 , also includes a pipe feeding mechanism 30, a guide rail slider mechanism 11 and a rack 12 are slidably arranged on the frame 10 along the X-axis direction, the pipe feeding mechanism 30 includes a slide plate 31 connected to the slide block of the guide rail slider mechanism 11, a spindle mounting seat 37 is slidably arranged on the slide plate 31 along the Y-axis direction through the guide rail slider, a hollow spindle 32 is rotatably installed in the spindle mounting seat 37, the hollow spindle 32 is used for rotational driving and inserting pipes, the front end of the hollow spindle 32 is connected with an elastically deformable multi-jaw structure, the thickness of the multi-jaw structure near the end direction is gradually thickened, so that the outer wall of the multi-jaw structure forms an upward inclined surface, and a sleeve 33 is movably sleeved on the hollow spindle 32, and the sleeve 33 is used to squeeze the multi-jaw structure when sliding along the end of the hollow spindle 32, so that the multi-jaw structure clamps the pipe in the hollow spindle 32.

[0051] A fourth drive motor 36 is also provided above the hollow main shaft 32 , and a synchronous belt reduction transmission mechanism is provided between the power output shaft of the fourth drive motor 36 and the hollow main shaft 32 , so that the fourth drive motor 36 drives the hollow main shaft 32 to rotate and adjust the bending direction of the pipe.

[0052] Preferably, in a multi-layer film fully automatic pipe bending device of this embodiment, a third driving cylinder 34 is hinged on the box body of the hollow main shaft 32, and the telescopic shaft end of the third driving cylinder 34 is hinged to the sleeve 33. The third driving cylinder 34 is used to drive the multi-claw structure of the front end inner wall of the sleeve 33 to squeeze or move away from the end of the hollow main shaft 32.

[0053] Preferably, in a multi-layer film fully automatic pipe bending device of this embodiment, a second drive motor 35 is also provided on the slide plate 31, and a gear is fixedly connected to the power output shaft of the second drive motor 35, and the gear is engaged with the rack 12 to drive the slide plate 31 to slide along the guide rail of the guide rail slider mechanism to feed the pipe.

[0054] The pipe loader 40 adopts the stepped pipe feeder conventionally used in the prior art, and is arranged on one side of the head mounting frame 21. The three-axis manipulator 50 is located above the head mounting frame 21, including a column fixedly arranged on the frame 10, and a fourth driving cylinder that can be extended and retracted along the Y-axis direction is arranged on the column 10. The telescopic end of the fourth driving cylinder is fixedly connected to a feeding slide, and a double-slider rodless cylinder is fixedly installed on the feeding slide. The two action slides of the double-slider rodless cylinder are respectively connected to a fifth driving cylinder that can be extended and retracted along the Z-axis direction. The telescopic parts of the two fifth driving cylinders are each fixedly connected to a clamping cylinder, and the two clamping cylinders are respectively used for pipe loading and finished product unloading.

[0055] The working process of the device of the utility model is as follows: first, the three-axis manipulator 50 is used to displace the pipe to be bent from the feeding station of the pipe feeding machine 40 and insert it into the hollow main shaft 32. In this embodiment, the pipe refers to a steel pipe. The third driving cylinder 34 drives the inner wall of the front end of the sleeve 33 to squeeze the multi-claw structure so that the steel pipe is clamped. The second driving motor 35 rotates to drive the slide plate 31 to move away from the pipe bending mechanism 20 to the initial bending position.

[0056] The screw drive device 29 drives the head mounting frame 21 upward, so that the arc grooves below the first pipe clamp block 261 and the second pipe clamp block 271 are aligned with the steel pipe, and the first driving cylinder 253 extends to push the first pipe clamp block 261 and the second pipe clamp block 271 close to the pipe bending guide die 28, respectively, so that the pipe is pressed tightly into the U-shaped ring groove below the pipe bending guide die 28;

[0057] The first drive motor 22 rotates, and drives the rotating shaft 24 to rotate through the helical gear set 23, thereby driving the first pipe bending assembly 26 and the pipe bending guide die 28 to rotate synchronously to achieve the pipe bending action of the steel pipe. The bending angle of the steel pipe can be adjusted by adjusting the rotation amount of the first drive motor 22;

[0058] Subsequently, the first pipe clamp 261 and the second pipe clamp 271 return to their original positions, the screw drive device 29 drives the head mounting frame 21 to move downward to avoid the bending guide mold 28 until the arc groove above the first pipe clamp 261 and the second pipe clamp 271 is aligned with the steel pipe, the second drive motor 35 rotates to drive the slide plate 31 to move close to the bending mechanism 20 to the required length of the steel pipe bending section, the fourth drive motor 36 drives the hollow main shaft 32 to rotate, adjusts the bending direction of the steel pipe, and the first drive cylinder 253 extends to push the first pipe clamp 261 and the second pipe clamp 271 close to the bending guide mold 28, respectively, and press the pipes tightly into the U-shaped ring groove above the bending guide mold 28;

[0059] The above clamping and bending actions are repeated until the bending actions are all completed, and the three-axis manipulator 50 clamps and transfers the finished product to the unloading station.

[0060] Based on the above ideal embodiments of this application, the relevant staff can make various changes and modifications without departing from the technical concept of this application through the above description. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A multi-layer film fully automatic tube bending device, characterized in that: comprising a frame (10); A pipe bending mechanism (20) is provided at one end of the frame (10), and the pipe bending mechanism (20) comprises a head mounting frame (21), and the head mounting frame (21) is slidably arranged on the frame (10) along the YZ axis, and a first driving motor (22) in the horizontal direction is arranged on the head mounting frame (21); The head mounting frame (21) is provided with a rotating shaft (24) that rotates around the Z-axis direction, and a pair of helical gear sets (23) are provided between the power output shaft of the first driving motor (22) and the rotating shaft (24) for transmission connection; The rotating shaft (24) is also fixedly connected to a first pipe bending assembly (26); the machine head mounting frame (21) is provided with a second pipe bending assembly (27); the action output portion of the first pipe bending assembly (26) is provided with a first pipe clamping block (261) for positioning and supporting the pipe; the action output portion of the second pipe bending assembly (27) is provided with a second pipe clamping block (271) for positioning and supporting the pipe; The rotating shaft (24) is also coaxially fixedly connected with a pipe bending guide die (28), and the pipe bending guide die (28) is provided with a U-shaped groove; It also includes a pipe loader (40) which is used for feeding pipes. The frame (10) is also provided with a three-axis manipulator (50) for loading and unloading pipes.

2. A multi-layer film fully automatic tube bending device according to claim 1, characterized in that: The first pipe bending assembly (26) comprises a first tooling frame (262) and a first mold frame (263); the first mold frame (263) is slidably connected to the first tooling frame (262) along its length direction; and the second pipe clamping block (271) is slidably connected to the first mold frame (263) along the X-axis direction.

3. A multi-layer film fully automatic tube bending device according to claim 2, characterized in that: The second pipe bending assembly (27) comprises a second tooling frame (272) and a second mold frame (273); the second mold frame (273) is slidably connected to the second tooling frame (272) along the Y-axis direction; and the second pipe clamping block (271) is slidably connected to the second mold frame (273) along the X-axis direction.

4. A multi-layer film fully automatic tube bending device according to claim 3, characterized in that: The first tooling frame (262) and the second tooling frame (272) are both provided with a connecting rod assembly (25), and the connecting rod assembly (25) is used to drive the first mold frame (263) and the second mold frame (273) to slide.

5. A multi-layer film fully automatic tube bending device according to claim 4, characterized in that: The connecting rod assembly (25) comprises a first connecting rod (251) and a second connecting rod (252); one end of the first connecting rod (251) is hinged to the inner wall of the first tooling frame (262) or the second tooling frame (272), and the other end is hinged to the second connecting rod (252); the other end of the second connecting rod (252) is hinged to the bottom of the first mold frame (263) or the second mold frame (273).

6. A multi-layer film fully automatic tube bending device according to claim 5, characterized in that: A first driving cylinder (253) is also hinged on the first tooling frame (262) or the second tooling frame (272), and the end of the telescopic rod of the first driving cylinder (253) is hinged to the first connecting rod (251).

7. A multi-layer film fully automatic tube bending device according to any one of claims 1 to 6, characterized in that: The invention also comprises a pipe feeding mechanism (30), wherein a guide rail slider mechanism (11) and a rack (12) are slidably arranged on the frame (10) along the X-axis direction, and the pipe feeding mechanism (30) comprises a slide plate (31) connected to the slide plate of the guide rail slider mechanism (11), and a hollow main shaft (32) for rotationally driving and inserting pipes is slidably arranged on the slide plate (31) along the Y-axis direction, and an elastic multi-claw structure is arranged at the front end of the hollow main shaft (32), and the outer wall surface of the multi-claw structure is arranged as an inclined surface inclined outwardly and upwardly, and a sleeve (33) is movably sleeved on the hollow main shaft (32), and when the sleeve (33) slides along the end of the hollow main shaft (32), it is used to press the outer wall inclined surface of the multi-claw structure, so that the multi-claw structure clamps the pipe in the hollow main shaft (32).

8. The multi-layer film fully automatic tube bending device according to claim 7, characterized in that: A third driving cylinder (34) is hingedly connected to the housing of the hollow main shaft (32), and the end of the telescopic shaft of the third driving cylinder (34) is hingedly connected to the sleeve (33). The third driving cylinder (34) is used to drive the inner wall of the front end of the sleeve (33) to squeeze or move away from the multi-claw structure of the end of the hollow main shaft (32).

9. A multi-layer film fully automatic tube bending device according to claim 8, characterized in that: The slide plate (31) is also provided with a second drive motor (35), and a gear is fixedly connected to the power output shaft of the second drive motor (35), and the gear is meshed with the rack (12) to drive the slide plate (31) to slide along the guide rail of the guide rail slider mechanism to feed the pipe.

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