Elbow structure capable of punching

Abstract

The utility model discloses a pipe bending structure capable of punching, which comprises a base, a positioning die is arranged on the base, a first matching groove used for placing a pipe is arranged on the side face of the positioning die, the first matching groove is arranged along the circumferential direction by taking the axis of a bent pipe as the center, and a die clamping component positioned on one side of the positioning die is further arranged on the base. The die clamping assembly comprises a die clamping part capable of getting close to the positioning die, the die clamping assembly comprises a first driving device capable of pushing the die clamping part to rotate in the circumferential direction with the axis of the bent pipe as the center, a punching needle part capable of sliding relative to the positioning die is arranged in the positioning die, and punching needle holes are formed in the position, on the groove wall of the first matching groove, of the positioning die. A punching needle head capable of penetrating out of the punching needle hole in the sliding process of the punching needle piece is arranged on the punching needle piece, the positioning die is connected with a driving structure used for driving the punching needle piece to slide so that the punching needle head can penetrate out of the punching needle hole to punch the pipe, and the pipe bending and punching functions can be achieved at the same time.

Description

Technical Field

[0001] The present utility model specifically relates to a bend pipe structure capable of punching holes. Background Art

[0002] In the metal processing industry, especially in the field of pipe processing, bend pipe forming is a common processing technology used to bend straight pipes into required shapes. In some application scenarios, it is necessary to punch holes at the inner bend of the bend pipe for subsequent installation of accessories or other processes. However, traditional punching methods often require two processes. First, the straight pipe is processed into a bend pipe, and then holes are opened on the bend pipe. However, it is difficult to accurately punch holes at the inner bend of the bend pipe with this traditional processing method. The main reasons include: 1. Difficult positioning. Since the pipe will deform during the bending process, it is very difficult to accurately determine the specific position of the inner bend; 2. Inconvenient operation. Traditional punching equipment is often not suitable for bent pipes. Especially when punching holes at the bent part of the pipe, specially designed tools or equipment are required to complete the operation; 3. Precision problems. When punching holes at the inner bend, if the operation is improper, it is easy to cause the position of the hole to shift or the hole diameter to be inaccurate, affecting the final quality of the product; 4. Processing efficiency. Traditional processing methods may require multiple manual adjustments and calibrations, which not only consume time but also increase production costs. Therefore, it is difficult to process high-precision holes at the inner bend of the bend pipe with traditional processing equipment.

[0003] The present utility model is precisely generated based on the above deficiencies. Content of the Utility Model

[0004] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a bending mechanism for punching holes at the inner bend of a pipe fitting that can simultaneously achieve the functions of bending the pipe and punching holes.

[0005] The utility model is achieved through the following technical solutions:

[0006] A bend pipe structure capable of punching holes, including a base. A positioning die is provided on the base. A first matching groove for placing the pipe is provided on the side of the positioning die. The first matching groove is arranged circumferentially around the axis of the bend pipe. A clamping die assembly is further provided on the base on one side of the positioning die. The clamping die assembly includes a clamping die part capable of approaching the positioning die. The clamping die assembly includes a first driving device capable of pushing the clamping die part to rotate circumferentially around the axis of the bend pipe. A punching needle part capable of sliding relative to it is provided inside the positioning die. A punching needle hole is provided on the groove wall of the first matching groove of the positioning die. A punching needle head capable of passing through the punching needle hole during the sliding process of the punching needle part is provided on the punching needle part. The positioning die is connected with a driving structure for driving the punching needle part to slide so that the punching needle head passes through the punching needle hole to punch the pipe.

[0007] The pierceable bent pipe structure as described above, wherein the driving structure includes a sliding member slidably connected to the positioning die, and a second driving device connected to the positioning die and capable of pushing the sliding member to slide. The sliding member is provided with an inclined first mating surface, and the punching needle member is provided with a second mating surface that abuts and cooperates with the first mating surface, so that when the sliding member slides, it can push the punching needle member to slide.

[0008] The pierceable bent pipe structure as described above further includes a control module. The control module is electrically connected to both the first driving device and the second driving device. Moreover, the control module controls the first driving device to operate so that the clamping die assembly rotates circumferentially around the axis of the bent pipe. When the clamping die reaches the position corresponding to the punching needle hole, the control module controls the second driving device to operate.

[0009] For the pierceable bent pipe structure as described above, the starting position of the pipe bending on the first matching groove is position P, and the position where the punching needle hole is provided on the first matching groove is position Q. Then the central angle α from position P to position Q is between 15° and 25°.

[0010] The clamping die assembly of the pierceable bent pipe structure as described above further includes a rotating seat rotatably connected to the base around the axis of the bent pipe. The clamping die is slidably connected to the rotating seat, and the rotating seat is provided with a third driving device for pushing the clamping die to slide and thus approach the positioning die.

[0011] For the pierceable bent pipe structure as described above, the clamping die is provided with a second matching groove on the side close to the positioning die. When the clamping die approaches the positioning die, the second matching groove and the first matching groove are closed to form a bent pipe channel.

[0012] For the pierceable bent pipe structure as described above, the base is further provided with a pre-clamping assembly on the side opposite to the clamping die assembly. The pre-clamping assembly includes a pre-pressing member capable of approaching the positioning die.

[0013] The pre-clamping assembly of the pierceable bent pipe structure as described above further includes a sliding seat slidably connected to the base. The base is provided with a fourth driving device for pushing the sliding seat to slide towards the clamping die assembly, and the pre-pressing member is connected to the sliding seat.

[0014] For the pierceable bent pipe structure as described above, the pre-pressing member is provided with a third matching groove on the side close to the positioning die. When the pre-pressing member approaches the positioning die, the third matching groove and the first matching groove are closed to form a bent pipe channel.

[0015] For the pierceable bent pipe structure as described above, the control module is electrically connected to the third driving device, the fourth driving device, and the fifth driving device.

[0016] Compared with the prior art, the new type has the following advantages:

[0017] When the bending mechanism with holes drilled at the inner bend of the pipe fittings of the present new type works, the clamping die part of the bending mechanism approaches the positioning die, and the pipe material placed in the first matching groove is bent along the circumferential direction, thus realizing pipe bending. When the pipe is bent or partially bent, the punch needle head penetrates from the punch needle hole and drills a hole on the inner side of the bent part of the pipe, thus realizing the function of bending the pipe and accurately drilling the bent pipe at the same time. The mechanism of this solution has a simple structure, accurate positioning, convenient processing, and high processing accuracy, and can drill holes on the inner side of the bent pipe while bending the pipe, improving the working efficiency of processing;

[0018] The punch needle hole on the first matching groove of the present new type is set at the position rotated 25° from the bending starting point. When the clamping die part reaches the position of the punch needle hole during work, the second driving device pushes the punch needle part to slide so that the punch needle head can penetrate from the punch needle hole for drilling. Since the second matching groove and the first matching groove enclose a pipe bending channel when the clamping die part approaches the positioning die, the pipe material at this place is restricted from deforming, thus preventing deformation during the drilling process and affecting the processing accuracy. Description of the Drawings

[0019] Figure 1 is a three-dimensional schematic diagram of the pipe bending structure with holes that can be drilled according to the present new type;

[0020] Figure 2 is a partial cross-sectional schematic diagram of the pipe bending structure with holes that can be drilled according to the present new type;

[0021] Figure 3 is Figure 2 an enlarged view of part B of

[0022] Figure 4 is a schematic diagram of the principle in the top view state of the pipe bending structure with holes that can be drilled according to the present new type;

[0023] Figure 5 is Figure 4 an enlarged view of part C of

[0024] Figure 6 is a partial exploded schematic diagram of the pipe bending structure with holes that can be drilled according to the present new type Figure 2 ;

[0025] Figure 7 is a partial exploded schematic diagram of the pipe bending structure with holes that can be drilled according to the present new type Figure 3 。 Detailed Implementation Modes

[0026] The following further describes the new type in conjunction with the drawings:

[0027] The orientations described in the utility model specification, such as "upper", "lower", "left", "right", "front", "rear", etc., are all based on the orientation of the drawings and are for the purpose of facilitating the description of the relationship between various components. They do not indicate the only or absolute positional relationship between various components. It is only one of the implementation manners to realize the utility model and does not limit its implementation manners.

[0028] As Figure 1 and Figure 2 shown, in this embodiment, a bendable pipe structure that can be punched is provided, which is to be applied to a pipe bending device for processing through holes on a pipe A that has been processed into a bent pipe. This kind of bending mechanism includes a base 1, and a positioning die 2 is provided on the base 1. As Figure 2 and Figure 3 shown, a first matching groove 21 for placing the pipe A is provided on the side of the positioning die 2. The first matching groove 21 is arranged along the circumferential direction with the axis of the bent pipe as the center. A clamping die assembly 3 is further provided on the base 1 on one side of the positioning die 2. The clamping die assembly 3 includes a clamping die member 31 that can approach the positioning die 2. The clamping die assembly 3 includes a first driving device 32 that can push the clamping die member 31 to rotate circumferentially with the axis of the bent pipe as the center. A punching needle member 22 that can slide relative to it is provided in the positioning die 2. A punching needle hole 23 is provided on the groove wall of the first matching groove 21 of the positioning die 2. A punching needle head 221 that can penetrate out of the punching needle hole 23 during the sliding process is provided on the punching needle member 22. The positioning die 2 is connected with a driving structure 24 for driving the punching needle member 22 to slide so that the punching needle head 221 penetrates out of the punching needle hole 23 to punch the pipe A. During operation, the clamping die member 31 approaches the positioning die 2, and the pipe A placed in the first matching groove 21 is bent along the circumferential direction to achieve bending. When the pipe A is bent or partially bent, the punching needle head 3 penetrates out of the punching needle hole 23 and punches holes on the inner side of the bent part of the pipe A, so as to realize the function of bending the pipe A and accurately punching the bent pipe A at the same time. By restricting the deformation of the pipe A through the groove wall of the matching groove 21, it is difficult for the cross-section of the pipe A to deform, thereby preventing deformation during the punching process and affecting the processing accuracy.

[0029] As a preferred implementation manner of the driving structure 24, as Figure 3 , Figure 6 and Figure 7As shown, the driving structure 24 includes a sliding member 25 slidably connected to the positioning die 2 and a second driving device 26 connected to the positioning die 2 and capable of pushing the sliding member 25 to slide. The sliding member 25 is provided with an inclined first mating surface 251, and the punching pin member 22 is provided with a second mating surface 222 that abuts and cooperates with the first mating surface 251. Therefore, both the first mating surface 251 and the second mating surface 222 are matching inclined surfaces, so that when the sliding member 25 slides, it can push the punching pin member 22 to slide. In addition, the inclination angle of the first mating surface 251 can also be set so that when the sliding member 25 pushes the punching pin member 22, it has a greater moment, thereby increasing the impact force of the punching pin member 22 and saving the output power of the second driving device 26.

[0030] Preferably, as Figure 3 , Figure 6 and Figure 7 shown, a first sliding cavity 27 is provided in the positioning die 2. The sliding member 25 is disposed in the first sliding cavity 27 and can slide in the first sliding cavity 27. A second sliding cavity 28 communicating with the first sliding cavity 27 is further provided in the positioning die 2. The punching pin member 22 is disposed in the second sliding cavity 28 and can slide in the second sliding cavity 28. The punching pin hole 23 communicates with the second sliding cavity 28 so that when the punching pin member 22 slides, the punching pin head 221 can pass through the punching pin hole 23. In this embodiment, the first sliding cavity 27 is longitudinally arranged, and the second sliding cavity 28 is transversely arranged. Thus, when the second driving device 26 pushes the sliding member 25 to slide longitudinally, the first mating surface 251 abuts against the second mating surface 222 to push the punching pin member 22 to move transversely. When the punching pin member 22 moves transversely, the punching pin head 221 can pass through the punching pin hole 23, and thus a hole can be punched in the pipe A. Of course, the first sliding cavity 27 does not need to be completely vertically arranged, and the second sliding cavity 28 does not need to be completely horizontally arranged, as long as the first sliding cavity 27 and the second sliding cavity 28 intersect so that the sliding member 25 can abut against the punching pin member 22 during the movement process.

[0031] To make the cooperation between the sliding member 25 and the punching pin member 22 smoother and more reliable, as Figure 6 and Figure 7 shown, the punching pin member 22 is provided with an installation through groove 223 for the sliding member 25 to pass through, and the second mating surface 222 is disposed in the installation through groove 223.

[0032] Preferably, as Figure 6 and Figure 7As shown in the figure, the positioning die 2 is composed of a die body 201 and a die group plate 202. The die group plate 202 can be connected to the die body 201 by welding. There is a concave cavity 251 on the die body 201. The die group plate 202 is connected to the die body 201 and fills the concave cavity 251. The second sliding cavity 28 is arranged on the die body 201, and the die body 201 has an opening 203 at the concave cavity 251 that communicates with the second sliding cavity 28 for installing the punch member 22. When the die group plate 202 is connected to the die body 201, the die group plate 202 covers the opening 203. In this way, the punch member 22 can be installed in the second sliding cavity 28 through the opening 203 first, and then the opening 203 can be covered by the die group plate 202, making the structure compact and facilitating processing and installation.

[0033] Preferably, as Figure 6 and Figure 7 shown in the figure, the die body 201 is cylindrical and the concave cavity 251 is provided on the cylindrical surface. An annular arc-shaped groove section 2101 is provided on the cylindrical surface of the die body 201. A linear groove section 2102 tangent to the arc-shaped groove section 2101 is provided on the die group plate 202. The arc-shaped groove section 2101 and the linear groove section 2102 are connected to form the matching groove 21. In this way, whether the arc-shaped groove section 2101 is provided on the die body 201 or the linear groove section 2102 is provided on the die group plate 202, it is very conducive to processing. Moreover, the matching groove 21 formed by connecting the arc-shaped groove section 2101 and the linear groove section 2102 exactly fits the structure of the U-shaped pipe in this embodiment. And the above structure facilitates the installation of the punch member 22, with ingenious design and compact structure.

[0034] To improve the transmission stability between the second driving device 26 and the sliding member 25, as Figure 6 and Figure 7 shown in the figure, a mounting seat 29 is connected to the positioning die 2. The second driving device 26 is arranged on the mounting seat 29. The mounting seat 29 is provided with a sliding hole 291 for the output shaft of the second driving device 26 to pass through. Preferably, a connecting member 292 capable of sliding in the sliding hole 291 is provided in the sliding hole 291 of the mounting seat 29. One end of the connecting member 292 is connected to the output shaft of the second driving device 26, and the other end of the connecting member 292 is connected to the sliding member 25.

[0035] As a preferred embodiment of the clamping die assembly 3, the clamping die assembly 3 further includes a rotating seat 33 rotatably connected to the base 1 with the axis of the bent pipe as the center. The clamping die 31 is slidably connected to the rotating seat 33. The rotating seat 33 is provided with a third driving device 34 for pushing the clamping die 31 to slide and thus approach the positioning die 2. With the above structure, the clamping die 31 can not only rotate circumferentially relative to the positioning die 2 but also move in the direction of approaching or departing from the positioning die 2, so as to realize the function of bending the pipe A on the positioning die 2. Preferably, as Figure 3 described, the clamping die 31 is provided with a second matching groove 311 on the side close to the positioning die 2. When the clamping die 31 approaches the positioning die 2, the second matching groove 311 and the first matching groove 21 are closed to form a bent pipe channel.

[0036] As a preferred solution, as Figures 1 to 3 shown, the base 1 is further provided with a pre-clamping assembly 5 on the side opposite to the clamping die assembly 3. The pre-clamping assembly 5 includes a pre-pressing member 51 capable of approaching the positioning die 2. As Figure 2 and Figure 3 shown, the pre-clamping assembly 5 further includes a sliding seat 52 slidably connected to the base 1. The base 1 is provided with a fourth driving device 53 for pushing the sliding seat 52 to slide towards the positioning die 2. The pre-pressing member 51 is slidably connected to the sliding seat 52 so that the pre-pressing member 51 can slide along the tangent direction of the first matching groove 21. The sliding seat 52 is provided with a fifth driving device 54 for driving the pre-pressing member 51 to slide relative to the sliding seat 52. During operation, the fourth driving device 53 is used to push the sliding seat 52 to slide towards the clamping die assembly 3 and approach, so that the pre-pressing member 51 presses on the pipe A in the first matching groove 21, thereby tightly pressing the starting point position P of the pipe A during bending to prevent the pipe 4 from deforming or loosening during the pipe bending process. Then, the fifth driving device 54 is used to push the pre-pressing member 51 to slide relative to the sliding seat 52, and its sliding direction is as Figure 1 and Figure 2 shown. The direction of the pre-pressing member 51 relative to the sliding seat 52 is along the tangent direction of the first matching groove 21. The sliding of the pre-pressing member 51 relative to the sliding seat 52 can play a role in avoiding the clamping die assembly 3 and maintaining the straightness of the starting point position P of the bent pipe A.

[0037] Preferably, as Figure 3 shown, the pre-pressing member 51 is provided with a third matching groove 511 on the side close to the positioning die 2. When the pre-pressing member 51 approaches the positioning die 2, the third matching groove 511 and the first matching groove 21 are closed to form a bent pipe channel.

[0038] As a preferred embodiment, as Figure 1As shown in the figure, the bending mechanism further includes a control module 4, which is a general PLC programmable control circuit board or a controller. The control module 4 is electrically connected to both the first driving device 32 and the second driving device 26. Moreover, the control module 4 controls the first driving device 32 to operate so that the clamping die assembly 3 rotates circumferentially around the axis of the bent pipe. When the clamping die 31 reaches the position corresponding to the punching needle hole 23, the control module 4 controls the second driving device 26 to operate. As Figure 5 shown, the starting position of the bending of the pipe A on the first matching groove 21 is position P, and the position where the punching needle hole 23 is provided on the first matching groove 21 is position Q. Then, the central angle α from position P to position Q is between 15° and 25°, that is, the central angle α of position P and position Q on the circumference centered on the axis of the bent pipe. In this embodiment, the preset central angle α is 25°, that is, the punching needle hole 23 on the first matching groove 21 is provided at the position rotated 25° from the bending starting position P. During operation, when the first driving device 32 drives the rotating seat 33 to rotate, the clamping die 31 reaches the starting position of the bending of the pipe A, which is position P. The third driving device 34 pushes the clamping die 31 to slide and then approaches the positioning die 2. The rotating seat 33 continues to rotate so that the clamping die 31 bends the pipe A. When the rotating seat 33 rotates by an angle of 25°, the second driving device 26 is pushed to slide the punching needle member 22 so that the punching needle head 221 can penetrate out of the punching needle hole 23, and then the pipe A is punched at position Q. At this time, since the second matching groove 311 and the first matching groove 21 are closed to form a bent pipe channel when the clamping die 31 approaches the positioning die 2 at position Q, the material of the pipe A at position Q is restricted from deforming, thus preventing deformation during the punching process and affecting the processing accuracy. In addition, the control module 4 is electrically connected to the third driving device 34, the fourth driving device 53, and the fifth driving device 54 to facilitate automatic control of the action sequence of each component.

[0039] The above are only embodiments of the present invention. Common knowledge such as specific structures and characteristics known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. A punchable elbow structure, characterized in that: It includes a base (1), a positioning die (2) is provided on the base (1), a first matching groove (21) for placing a pipe (A) is provided on the side of the positioning die (2), the first matching groove (21) is arranged circumferentially around the axis of the bent pipe, a clamping die assembly (3) is further provided on the base (1) on one side of the positioning die (2), the clamping die assembly (3) includes a clamping die part (31) capable of approaching the positioning die (2), and the clamping die assembly (3) includes a first driving device (32) capable of pushing the clamping die part (31) to rotate circumferentially around the axis of the bent pipe. A punching needle part (22) capable of sliding relative to it is arranged in the positioning die (2), a punching needle hole (23) is provided on the groove wall of the first matching groove (21) of the positioning die (2), and a punching needle head (221) capable of passing through the punching needle hole (23) during the sliding process is provided on the punching needle part (22). The positioning die (2) is connected with a driving structure (24) for driving the punching needle part (22) to slide so that the punching needle head (221) passes through the punching needle hole (23) to punch the pipe (A).

2. The punchable elbow structure according to claim 1, characterized in that: The driving structure (24) includes a sliding part (25) slidably connected to the positioning die (2), and a second driving device (26) connected to the positioning die (2) and capable of pushing the sliding part (25) to slide. An inclined first mating surface (251) is provided on the sliding part (25), and a second mating surface (222) abutted and mated with the first mating surface (251) is provided on the punching needle part (22), so that when the sliding part (25) slides, it can push the punching needle part (22) to slide.

3. The punchable elbow structure according to claim 2, wherein: It further includes a control module (4). The control module (4) is electrically connected to both the first driving device (32) and the second driving device (26). Moreover, the control module (4) controls the first driving device (32) to work so that the clamping die assembly (3) rotates circumferentially around the axis of the bent pipe. When the clamping die part (31) reaches the position corresponding to the punching needle hole (23), the control module (4) controls the second driving device (26) to work.

4. The punchable elbow structure according to claim 3, characterized in that: The starting position of the bending of the pipe (A) on the first matching groove (21) is position P, and the position where the punching needle hole (23) is provided on the first matching groove (21) is position Q. Then the central angle α from position P to position Q is between 15° and 25°.

5. The punchable elbow structure according to claim 3, characterized in that: The clamping die assembly (3) further includes a rotating seat (33) rotatably connected to the base (1) around the axis of the bent pipe. The clamping die part (31) is slidably connected to the rotating seat (33), and a third driving device (34) for pushing the clamping die part (31) to slide and approach the positioning die (2) is provided on the rotating seat (33).

6. The punchable elbow structure according to claim 5, characterized in that: A second matching groove (311) is provided on the side of the clamping die part (31) close to the positioning die (2). When the clamping die part (31) approaches the positioning die (2), the second matching groove (311) and the first matching groove (21) are closed to form a bent pipe channel.

7. The punchable elbow structure according to claim 6, wherein: A pre-clamping assembly (5) is further provided on the described base (1) and is located on the side opposite to the mold clamping assembly (3). The pre-clamping assembly (5) includes a pre-pressing member (51) capable of approaching the positioning mold (2).

8. The punchable elbow structure according to claim 7, characterized in that: The pre-clamping assembly (5) further includes a sliding seat (52) slidably connected to the base (1). A fourth driving device (53) for pushing the sliding seat (52) to slide towards the mold clamping assembly (3) is provided on the base (1). The pre-pressing member (51) is connected to the sliding seat (52).

9. The punchable elbow structure according to claim 8, wherein: A third matching groove (511) is provided on the side of the pre-pressing member (51) close to the positioning mold (2). When the pre-pressing member (51) approaches the positioning mold (2), the third matching groove (511) and the first matching groove (21) are closed to form a bent pipe channel.

10. The punchable elbow structure according to claim 8, characterized in that: The control module (4) is electrically connected to the third driving device (34), the fourth driving device (53), and the fifth driving device (54).

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