A three-way pipe forming machine

Abstract

The present invention discloses a three-way pipe forming machine for ejecting the side pipe orifice of an outward-turned water pipe, which includes a clamping device for fixing the water pipe, an ejecting mechanism corresponding to the clamping device, and a moving device. The ejecting mechanism is inserted into the water pipe through the moving device. Among them, the clamping device includes a clamping die for clamping the water pipe and a pressure-bearing member arranged in the clamping die. The clamping die is provided with a top extension channel corresponding to the side pipe orifice, and the pressure-bearing member is provided with a pressed arc surface corresponding to the top extension channel. The ejecting mechanism includes a top rod installed on the moving device and a swinging member hinge-connected to the top rod. One end of the swinging member is provided with a spherical portion. After the spherical portion contacts the pressed arc surface, it turns towards the top extension channel to form the side pipe orifice into a tubular shape. By adopting the present invention, the structure is simple, the production efficiency is high, and there is no need to repeatedly disassemble the pulling parts.

Description

Technical Field

[0001] The present invention relates to the technical field of water pipe processing, and in particular to a tee forming machine. Background Art

[0002] The processing and forming of existing ordinary tee water pipes is to punch holes in the side wall of an ordinary water pipe and then weld a corresponding pipe to the water pipe at the punched hole by welding. This method has complex processes, extremely high requirements for automation, and is prone to leakage holes due to false welding or uneven welding points.

[0003] On the other hand, for the production method using the drawing method, that is, on the hole punched in the water pipe, through the drawing method, it is deformed and turned outwards to form a new pipe. However, this drawing method requires a corresponding drawing part to be arranged in the water pipe in advance, and then an external drawing device is connected to the drawing part and pulled out to realize the drawing forming of the side pipe.

[0004] But after each drawing forming, this method requires manual removal of the drawing part and then the drawing part is repeatedly placed at the corresponding position in the water pipe. Therefore, this method has low production efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a tee forming machine with a simple structure, high production efficiency, and no need to repeatedly disassemble the drawing part.

[0006] To solve the above technical problem, the present invention provides a tee forming machine, including a clamping device for fixing a water pipe, an ejecting mechanism corresponding to the clamping device, and a moving device, and the ejecting mechanism is inserted into the water pipe through the moving device;

[0007] Wherein, the clamping device includes a clamping die for restricting the movement of the water pipe and a pressure-bearing member arranged in the clamping die, the clamping die is provided with a top extension channel corresponding to the side pipe orifice, and the pressure-bearing member is provided with a pressure-bearing arc surface corresponding to the top extension channel;

[0008] The ejecting mechanism includes a top rod installed on the moving device and a swinging member hinged to the top rod, one end of the swinging member is provided with a spherical portion, and after the spherical portion contacts the pressure-bearing arc surface, it turns to the top extension channel to form the side pipe orifice into a tubular shape.

[0009] As an improvement of the above solution, the clamping die includes a bottom die and a top die matching with the bottom die, a water pipe cavity adapted to the water pipe is formed by closing between the top die and the bottom die, and the pressure-bearing member is installed in the water pipe cavity.

[0010] As an improvement to the above solution, the pressure-bearing member includes a pressure-bearing rod adapted to the water pipe and a handle for holding. The pressure-bearing arc surface is provided at one end of the pressure-bearing rod, and the other end of the pressure-bearing rod is connected to the handle.

[0011] As an improvement to the above solution, the bottom mold is provided with a fixed shaft for installing the pressure-bearing member, and the pressure-bearing rod is provided with a mounting hole adapted to the fixed shaft.

[0012] As an improvement to the above solution, the moving device includes a guide rail, a moving base installed on the guide rail, and a driving device. The driving device drives the moving base to move along the guide rail.

[0013] As an improvement to the above solution, the moving base is provided with a limiting rod for limiting the installation angle of the ejecting mechanism, and the ejecting rod is provided with a positioning column corresponding to the limiting rod.

[0014] As an improvement to the above solution, the moving base is provided with a clamping block for clamping and fixing the ejecting rod.

[0015] As an improvement to the above solution, the moving base is provided with an adjusting substrate for adjusting the extending amount of the limiting rod, and the limiting rod is provided with a threaded portion for threaded connection with the adjusting substrate.

[0016] As an improvement to the above solution, the three-way pipe forming machine further includes a mold opening device for controlling the opening and closing of the clamping mold. The mold opening device includes a fixture for clamping and fixing the bottom mold and a lifting device connected to the top mold.

[0017] As an improvement to the above solution, the pressure-bearing rod and the water pipe are in clearance fit.

[0018] Implementing the present invention has the following beneficial effects:

[0019] The present invention discloses a three-way pipe forming machine, including a clamping device, an ejecting mechanism, and a moving device. The ejecting mechanism is inserted into the water pipe through the moving device.

[0020] The clamping device includes a clamping mold for restricting the movement of the water pipe and a pressure-bearing member provided in the clamping mold. The clamping mold is provided with a top-extending channel corresponding to the side pipe opening, and the pressure-bearing member is provided with a pressure-bearing arc surface corresponding to the top-extending channel; the ejecting mechanism includes an ejecting rod and a swinging member hinged to the ejecting rod. One end of the swinging member is provided with a spherical portion.

[0021] Therefore, the user only needs to put the water pipe to be processed on the pressure-bearing part, and then the clamping die restricts its position. Under the action of the moving device, when the spherical part contacts the pressure-bearing arc surface, it will turn to the top extension channel, so as to form the side pipe orifice into a tubular shape.

[0022] Moreover, after the processing of the side pipe orifice is completed, only the moving device needs to drive the ejection mechanism to reset, so that the ejection mechanism can be separated from the processed water pipe, and then the user can take out the processed water pipe to process the next workpiece. Therefore, the production efficiency is high, and there is no need to repeatedly disassemble and pull out the pulling parts required for pulling. Description of the Drawings

[0023] Figure 1 is a schematic structural view of the present invention when loading a water pipe;

[0024] Figure 2 is a schematic structural view of the present invention. Detailed Embodiment

[0025] To make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings.

[0026] See Figure 1 、 2 , the present invention provides a three-way pipe forming machine for ejecting the side pipe orifice 11 of the turned-out water pipe 1. The three-way pipe forming machine includes a clamping device 2 for restricting the movement of the water pipe 1, an ejection mechanism 3 corresponding to the clamping device 2, and a moving device 4. The ejection mechanism 3 is inserted into the water pipe 1 through the moving device 4;

[0027] Wherein, the clamping device 2 includes a clamping die 21 for restricting the movement of the water pipe and a pressure-bearing part 22 arranged in the clamping die. The clamping die 21 is provided with a top extension channel 211 corresponding to the side pipe orifice 11, and the pressure-bearing part 22 is provided with a pressure-bearing arc surface 221 corresponding to the ejection mechanism 3;

[0028] The ejection mechanism 3 includes an ejector rod 31 installed on the moving device 4 and a swing member 32 hinged to the ejector rod 31. One end of the swing member 32 is provided with a spherical portion 321. After the spherical portion 321 contacts the pressure-receiving arc surface 221, it turns towards the ejection channel 211 to push the side pipe orifice 11 into a tubular shape. It should be noted that half of the difference between the inner diameter of the ejection channel 211 and the diameter of the spherical portion 321 is the wall thickness stretching value. Therefore, in order to make the flanging of the side pipe orifice 11 more conform to the inner wall of the ejection channel 211 when the side pipe orifice 11 is ejected to form a flanging, a relatively round pipe orifice can be formed without affecting the ejection of the flanging. The wall thickness of the water pipe to be processed is less than the wall thickness stretching value. Preferably, the wall thickness of the water pipe to be processed is 0.95 - 0.99 times the wall thickness stretching value.

[0029] Specifically, the clamping die 21 includes a bottom die 212 and a top die 213 that matches the bottom die 212. A water pipe cavity 214 adapted to the water pipe 1 is formed when the top die 213 and the bottom die 212 are closed, and the pressure-receiving member 22 is installed in the water pipe cavity 214. The three-way pipe forming machine further includes a die-opening device 5 for controlling the opening and closing of the clamping die 21. The die-opening device 5 includes a fixture 51 for clamping and fixing the bottom die 212 and a lifting device 52 connected to the top die 213. The pressure-receiving member 22 includes a pressure-receiving rod 222 adapted to the water pipe 1 and a handle 223 for holding. The pressure-receiving arc surface 221 is provided at one end of the pressure-receiving rod 222, and the other end of the pressure-receiving rod 222 is connected to the handle 223. Therefore, the lifting of the top die 213 can be controlled by the lifting device 52, thereby realizing the control of the opening and closing of the clamping die 21. Preferably, the fixture is a bench vice, and the lifting device is a hydraulic lifting device or a pneumatic telescopic device.

[0030] To facilitate the loading and unloading of the water pipe 1 onto the pressure-receiving rod 222, the bottom die 212 is provided with a fixed shaft 215 for installing the pressure-receiving member 22, and the pressure-receiving rod 222 is provided with a mounting hole (not marked in the figure) adapted to the fixed shaft 215. Therefore, when it is necessary to remove or insert the water pipe 1 onto the pressure-receiving rod 222, the end of the pressure-receiving rod 222 with the water pipe 1 can be turned towards the user's side by pushing the handle 223, so as to facilitate the removal of the processed water pipe and the installation of the water pipe to be processed to prepare for the next processing operation.

[0031] In terms of driving the ejection mechanism 3, the moving device 4 includes a guide rail 41, a moving base 42 installed on the guide rail, and a driving device 43. The driving device 43 drives the moving base 42 to move along the guide rail 41, thereby controlling the insertion or extraction of the ejection mechanism 3 into or from the water pipe 1. Preferably, the driving device 43 is a hydraulic telescopic device. The hydraulic telescopic device is a prior art and will not be elaborated here.

[0032] Since the horizontal plane where the center of the spherical part 321 rotates around the ejector rod 31 needs to coincide with the axis of the ejection channel 211, it is necessary to avoid a hard collision between the spherical part 321 and the inner wall of the ejection channel 211 during the ejection of the flange, thereby preventing destructive deformation of the hinge connection between the spherical part 321 and the ejector rod 31. Therefore, in order to facilitate the determination of the installation angle of the ejection mechanism 3, it is necessary to ensure that the horizontal plane where the center of the spherical part 321 rotates around the ejector rod 31 coincides with the axis of the ejection channel 211. The movable base 42 is provided with a clamping block 421 for clamping and fixing the ejector rod 31. The movable base 42 is provided with a limit rod 6 for limiting the installation angle of the ejection mechanism 3, and the ejector rod 31 is provided with a positioning column 7 corresponding to the limit rod 422. The clamping block 421 includes an upper clamping block 4211 and a lower clamping block 4212, and the upper clamping block 4211 and the lower clamping block 4212 are both provided with arc-shaped openings corresponding to each other for clamping the ejector rod 31. The upper clamping block 4211 and the lower clamping block 4212 are connected by bolts. Therefore, when it is necessary to replace the ejection mechanism 3 or adjust the installation angle of the ejection mechanism 3, just loosen the bolts connecting them. At the same time, the preset installation angle of the ejector rod 31 can be limited by the limit rod 6, that is, the interference between the limit rod 6 and the positioning column 7 can be used to determine the installation angle of the ejection mechanism 3, which is the preset installation angle.

[0033] Furthermore, in order to allow the ejection mechanism 3 to fine-tune the installation angle of the ejection mechanism 3 according to actual installation and use conditions, the movable base 42 is provided with an adjustment base plate 61 for adjusting the extension amount of the limit rod 6, and the limit rod 6 is provided with a threaded portion for threaded connection with the adjustment base plate 61. Therefore, the extension amount of the limit rod 6 can be controlled by screwing the limit rod 6, thereby changing the installation angle of the ejection mechanism 3 when the limit rod 6 conflicts with the positioning column 7.

[0034] On the other hand, when workers insert the water pipe 1 into the pressure rod 222, they generally need to align the side pipe opening of the water pipe 1 with the top extension channel 211. Since manual insertion generally has a certain error, and when workers deliberately adjust the positional relationship between the side pipe opening 11 and the top extension channel 211, the production efficiency will be relatively reduced. Therefore, the pressure rod 222 and the water pipe 1 are clearance-matched, so that the water pipe 1 can rotate relative to the top rod 31 under the action of external force. Therefore, when the overlap between the side pipe opening 11 and the top extension channel 211 is within a certain range, the side pipe opening 11 will rotate in the process of being pushed out and flanging by the spherical part 321, so that the side pipe opening 11 gradually aligns with the top extension channel 211.

[0035] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A three-way pipe forming machine for ejecting the side pipe orifice of an outward-turned water pipe, characterized in that, It includes a clamping device for fixing a water pipe, an ejecting mechanism corresponding to the clamping device, and a moving device. The ejecting mechanism is inserted into the water pipe through the moving device; Among them, the clamping device includes a clamping die for restricting the movement of the water pipe and a pressure-bearing member arranged in the clamping die. The clamping die is provided with an ejecting channel corresponding to the side pipe orifice, and the pressure-bearing member is provided with a pressure-receiving arc surface corresponding to the ejecting channel; The ejecting mechanism includes a ejecting rod installed on the moving device and a swinging member hinged to the ejecting rod. One end of the swinging member is provided with a spherical portion. After the spherical portion contacts the pressure-receiving arc surface, it turns towards the ejecting channel to eject the side pipe orifice into a tubular shape; The moving device includes a guide rail, a moving base installed on the guide rail, and a driving device. The driving device drives the moving base to move along the guide rail; The moving base is provided with a limiting rod for defining the installation angle of the ejecting mechanism, and the ejecting rod is provided with a positioning column corresponding to the limiting rod; The moving base is provided with a clamping block for clamping and fixing the ejecting rod; The moving base is provided with an adjusting substrate for adjusting the extending amount of the limiting rod, and the limiting rod is provided with a threaded portion for threaded connection with the adjusting substrate.

2. The three-way pipe forming machine according to claim 1, characterized in that, The clamping die includes a bottom die and a top die matching with the bottom die. A water pipe cavity adapted to the water pipe is formed by closing between the top die and the bottom die, and the pressure-bearing member is installed in the water pipe cavity; 3. The three-way pipe forming machine according to claim 2, characterized in that, The pressure-bearing member includes a pressure-bearing rod adapted to the water pipe and a handle for hand-holding. The pressure-receiving arc surface is arranged at one end of the pressure-bearing rod, and the other end of the pressure-bearing rod is connected to the handle; 4. The three-way pipe forming machine according to claim 3, characterized in that, The bottom die is provided with a fixed shaft for installing the pressure-bearing member, and the pressure-bearing rod is provided with an installation hole adapted to the fixed shaft; 5. The three-way pipe forming machine according to claim 2, wherein, The three-way pipe forming machine further includes a mold opening device for controlling the opening and closing of the clamping die. The mold opening device includes a fixture for clamping and fixing the bottom die and a lifting device connected to the top die; 6. The three-way pipe forming machine according to claim 3, characterized in that, The pressure-bearing rod and the water pipe are in clearance fit.

Images