Pipe fitting bending device

Abstract

The utility model discloses a pipe fitting bending device, which relates to the technical field of bending, and comprises a bottom plate, a positioning block, a first positioning block, a second positioning block, a first connecting rod, a second connecting rod, a second connecting rod and a third connecting rod, and is characterized in that the positioning block is arranged on the bottom plate and provided with a first positioning groove used for accommodating a main body of a pipe fitting; the pressing assembly is arranged on the bottom plate, and the pressing assembly is used for pressing a main body of the pipe fitting on the inner wall of the first positioning groove; the bending assembly is arranged on the bottom plate, and the bending assembly is used for bending the branch pipe of the pipe fitting in the first positioning groove; the ejector rod is parallel to the front-back direction, a guide hole is formed in the positioning block, the guide hole is communicated with the first positioning groove, the ejector rod can be arranged in the guide hole in a sliding and penetrating mode in the front-back direction, and the rear end of the ejector rod can stretch out of the guide hole and stretch into the first positioning groove so that the rear end of the ejector rod can eject the pipe out of the first positioning groove. The ejector rod in the pipe fitting bending device can quickly eject out the pipe fitting clamped in the first positioning groove, and the bending efficiency of the pipe fitting can be improved.

Description

Technical Field

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

[0002] Pipe fittings are the core components of filters, and are mainly used to connect, control, adjust or change the flow direction of fluids. In the internal installation environment of a specific filter, the installation of pipe fittings will be subject to space limitations. By bending the pipe fittings, they can be better adapted to the internal installation environment of the filter, ensuring that the pipe fittings can be correctly installed and function. In the prior art, bending devices are often used to bend pipe fittings. During the bending process of the pipe fittings, the pipe fittings will be stuck in the positioning groove on the bending device due to the bending force. At this time, the operator needs to use special tools to remove the pipe fittings from the first positioning groove, resulting in the operator being unable to smoothly remove the pipe fittings from the positioning groove after the pipe fittings are bent, which in turn results in the operator being unable to immediately bend the next pipe fitting, so it is not conducive to improving the bending efficiency of the pipe fittings. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a pipe bending device that is conducive to improving the bending efficiency of pipes.

[0004] According to an embodiment of the utility model, the pipe bending device includes a base plate: a positioning block, the positioning block is arranged on the base plate, the positioning block is provided with a first positioning groove, the first positioning groove is used to accommodate the main body of the pipe; a clamping assembly, the clamping assembly is arranged on the base plate, the clamping assembly is used to press the main body of the pipe against the inner wall of the first positioning groove; a bending assembly, the bending assembly is arranged on the base plate, and the bending assembly is used to bend the branch pipe of the pipe in the first positioning groove; a push rod, the push rod is parallel to the front and rear directions, a guide hole is formed on the positioning block, the guide hole is connected to the first positioning groove, the push rod can be slidably inserted into the guide hole along the front and rear directions, and the rear end of the push rod can extend from the guide hole and extend into the first positioning groove, so that the rear end of the push rod can push the pipe out of the first positioning groove.

[0005] It has at least the following beneficial effects:

[0006] When the pipe fitting needs to be bent, the operator can place the main body of the pipe fitting into the first positioning groove on the positioning block so that the inner wall of the first positioning groove can position the pipe fitting. After the pipe fitting is positioned, the operator can operate the clamping assembly to clamp the main body of the pipe fitting in the first positioning groove so that the main body of the pipe fitting is pressed against the inner wall of the first positioning groove to ensure that the pipe fitting does not shake during the bending process. After the pipe fitting is clamped, the operator can operate the bending assembly to bend the branch of the pipe fitting. After the pipe fitting is bent, the operator operates the clamping assembly to release the pipe fitting in the first positioning groove, and then the operator drives the push rod to move backward, and the rear end of the push rod extends from the guide hole and extends into the first positioning groove, so that the rear end of the push rod can push the main body of the pipe fitting in the first positioning groove backward, thereby allowing the pipe fitting to fall out of the first positioning groove. The ejector rod in the pipe bending device can quickly eject the pipe stuck in the first positioning groove without the use of additional special tools, so that the operator can quickly and smoothly remove the pipe from the first positioning groove, and then the operator can immediately bend the next pipe, which is conducive to improving the bending efficiency of the pipe.

[0007] According to the pipe bending device of the embodiment of the present invention, it also includes a spring part, an installation groove is formed on the positioning block, the installation groove is connected to the guide hole, the rear end of the push rod is passed through the guide hole, the front end of the push rod is passed through the installation groove, the spring part is arranged in the installation groove, the spring part is sleeved on the push rod, the two ends of the spring part are respectively connected to the push rod and the inner side wall of the installation groove, and the spring part is used to drive the push rod to move forward so that the rear end of the push rod enters the guide hole.

[0008] According to the pipe bending device of an embodiment of the present invention, it also includes a first shift block, the length direction of the mounting groove is parallel to the front-to-back direction, the lower end of the first shift block extends into the mounting groove, the lower end of the first shift block is connected to the front end of the push rod, the lower end of the first shift block abuts against the inner side wall of the mounting groove, and the upper end of the first shift block is arranged above the mounting groove.

[0009] According to the pipe bending device of the embodiment of the present invention, the clamping assembly includes a clamping block, a push rod, a connecting arm, a swing arm and a hinge seat. The clamping block can be slidably connected to the base plate in the front-to-back direction. The clamping block is arranged behind the positioning block. The hinge seat is arranged on the base plate. The push rod is parallel to the front-to-back direction. The front end of the push rod is connected to the clamping block, and the rear end of the push rod is hinged to one end of the connecting arm. The other end of the connecting arm is hinged to the lower end of the swing arm. The middle part of the swing arm is hinged to the hinge seat, and the upper end of the swing arm can swing downward so that the clamping block can move forward and approach the positioning block, so that the clamping block can press the main body of the pipe against the inner wall of the first positioning groove.

[0010] According to the pipe bending device of the embodiment of the present utility model, the clamping assembly further includes a second shift block, and the second shift block is arranged on the upper end of the swing arm.

[0011] According to the pipe bending device of the embodiment of the present invention, a guide groove is formed on the pressing block, the guide groove is parallel to the front-to-back direction, and a guide protrusion is provided on the bottom plate, the guide protrusion is parallel to the front-to-back direction, and the guide protrusion extends into the guide groove.

[0012] According to the pipe bending device of an embodiment of the present invention, the clamping assembly also includes a guide rod, a matching hole is opened on the clamping block, the guide rod is parallel to the front and rear directions, the guide rod is arranged on the positioning block, and the guide rod is inserted into the matching hole.

[0013] According to the pipe bending device of the embodiment of the present invention, a second positioning groove is provided on the side of the pressing block facing the positioning block, and the second positioning groove is used to accommodate the main body of the pipe.

[0014] According to the pipe bending device of the embodiment of the present utility model, the bending assembly includes a forming column, a turntable and a bending block, the forming column is arranged on the base plate, a forming ring groove is provided on the side wall of the forming column, the forming ring groove is connected to the first positioning groove, the turntable can be connected to the base plate rotatably around its own axis, the rotation axis of the turntable coincides with the axis of the forming column, the bending block can be removably connected to the turntable, the bending block is provided with a forming groove, the forming groove is used to accommodate the branch pipe of the pipe fitting, the turntable can drive the bending block to rotate so that the inner wall of the forming groove can bend the branch of the pipe fitting and make the branch of the pipe fitting fit on the inner wall of the forming ring groove.

[0015] According to the pipe bending device of the embodiment of the present invention, the bending assembly includes a gripping portion, and the gripping portion is connected to the turntable.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic structural diagram of a pipe fitting according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the pipe after bending according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic structural diagram of a pipe bending device according to an embodiment of the present utility model;

[0021] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0022] Figure 5 for Figure 3 A partial enlarged view of point B in the middle;

[0023] Figure 6 This is a structural diagram of a turntable and a positioning block in a pipe bending device according to an embodiment of the present utility model;

[0024] Figure 7 for Figure 6 A partial enlarged view of point C in the middle;

[0025] Figure 8 This is a schematic diagram of a clamping assembly in a pipe bending device according to an embodiment of the present utility model in a released state;

[0026] Figure 9 This is a schematic diagram of a compression assembly in a pipe bending device according to an embodiment of the present utility model in a compression state;

[0027] Figure 10 This is a schematic diagram of the pipe bending device according to an embodiment of the utility model in a compressed state;

[0028] Figure 11 for Figure 10 A partial enlarged view of point D in the middle;

[0029] Figure 12 This is a schematic diagram of the pipe bending device according to an embodiment of the utility model in a bending state;

[0030] Reference numerals:

[0031] Base plate 100; positioning block 110; first positioning groove 111; mounting groove 120; ejector rod 130; first shift block 140; guide protrusion 150; guide hole 160;

[0032] Compressing assembly 200; pressing block 210; guide groove 211; push rod 220; connecting arm 230; swing arm 240; hinge seat 250; second shifting block 260;

[0033] Bending assembly 300 ; forming column 310 ; forming annular groove 311 ; rotating disk 320 ; bending block 330 ; forming groove 331 ; pressing column 340 ; and gripping portion 350 . DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0036] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] It should be explained that the reference Figure 1 and Figure 2 The pipe fitting is composed of two parts, a main body and a branch pipe. The branch pipe is connected to the main body. In the embodiment of the present utility model, bending the pipe fitting refers to bending the branch pipe on the pipe fitting.

[0039] refer to Figures 3 to 7 The pipe bending device of the embodiment of the present invention includes a base plate 100 , a positioning block 110 , a pressing assembly 200 , a bending assembly 300 and a push rod 130 .

[0040] The positioning block 110 is provided on the base plate 100. The positioning block 110 is provided with a first positioning groove 111. The first positioning groove 111 is used to accommodate the main body of the pipe fitting. The pressing assembly 200 is provided on the base plate 100. The pressing assembly 200 is used to press the main body of the pipe fitting against the inner wall of the first positioning groove 111. The bending assembly 300 is provided on the base plate 100. The bending assembly 300 is used to bend the branch pipe of the pipe fitting in the first positioning groove 111. The push rod 130 is parallel to the front-to-back direction. The positioning block 110 is formed with a guide hole 160. The guide hole 160 is connected to the first positioning groove 111. The push rod 130 can be slidably inserted into the guide hole 160 along the front-to-back direction. The rear end of the push rod 130 can extend from the guide hole 160 and extend into the first positioning groove 111, so that the rear end of the push rod 130 can push the pipe fitting out of the first positioning groove 111.

[0041] The clamping assembly 200, the bending assembly 300 and the positioning block 110 are all connected to the base plate 100. A first positioning groove 111 is provided on the positioning block 110, and the first positioning groove 111 is used to accommodate the body of the pipe fitting, so that the inner wall of the first positioning groove 111 can play a positioning role with the pipe fitting, so that the pipe fitting can be accurately positioned on the positioning block 110. Specifically, the first positioning groove 111 can be a first-shaped groove, that is, the shape of the first-shaped groove is the same as the shape of the body of the pipe fitting. The clamping assembly 200 can press the pipe fitting against the inner wall of the first positioning groove 111, thereby preventing the pipe fitting from shaking during the bending process, so as to ensure the bending accuracy of the bending assembly 300. A guide hole 160 is formed on the positioning block 110, and the push rod 130 is inserted into the guide hole 160, so that the push rod 130 can move in the guide hole 160 along the front and rear directions.

[0042] It is understood that when a pipe needs to be bent, the operator can place the main body of the pipe into the first positioning groove 111 on the positioning block 110, so that the inner wall of the first positioning groove 111 can position the pipe. After the pipe is positioned, the operator can operate the clamping assembly 200 to compress the main body of the pipe in the first positioning groove 111, so that the main body of the pipe is pressed against the inner wall of the first positioning groove 111, ensuring that the pipe does not wobble during the bending process. After the pipe is compressed, the operator can operate the bending assembly 300 to bend the branch of the pipe. After the pipe is bent, the operator manipulates the clamping assembly 200 to release the pipe in the first positioning groove 111, and then drives the push rod 130 to move backward. The rear end of the push rod 130 extends from the guide hole 160 and extends into the first positioning groove 111, so that the rear end of the push rod 130 can push the main body of the pipe in the first positioning groove 111 backward, thereby allowing the pipe to fall out of the first positioning groove 111. The push rod 130 in the pipe bending device can quickly eject the pipe stuck in the first positioning groove 111 without the use of additional special tools, so that the operator can quickly and smoothly remove the pipe from the first positioning groove 111, and then the operator can immediately bend the next pipe, which is conducive to improving the bending efficiency of the pipe.

[0043] As an embodiment of the present invention, the pipe bending device also includes a spring member. A mounting groove 120 is formed on the positioning block 110. The mounting groove 120 is connected to the guide hole 160. The rear end of the push rod 130 is inserted into the guide hole 160. The front end of the push rod 130 is inserted into the mounting groove 120. The spring member is arranged in the mounting groove 120 and is sleeved on the push rod 130. The two ends of the spring member are respectively connected to the push rod 130 and the inner side wall of the mounting groove 120. The spring member is used to drive the push rod 130 to move forward so that the rear end of the push rod 130 enters the guide hole 160. Figures 4 to 7 The pipe bending device also includes a first shift block 140. The length direction of the mounting groove 120 is parallel to the front-to-back direction. The lower end of the first shift block 140 extends into the mounting groove 120. The lower end of the first shift block 140 is connected to the front end of the push rod 130. The lower end of the first shift block 140 abuts against the inner side wall of the mounting groove 120. The upper end of the first shift block 140 is arranged above the mounting groove 120.

[0044] It is understood that the spring member may be a compression spring. When the pipe fitting is stuck in the first positioning groove 111, the operator can drive the upper end of the first shift block 140 to move backward, so that the lower end of the first shift block 140 drives the push rod 130 to move backward, compressing the spring member, thereby causing the rear end of the push rod 130 to move backward, extend out of the guide hole 160, and extend into the first positioning groove 111. At this time, the push rod 130 can push the pipe fitting stuck in the first positioning groove 111 out, and the pipe fitting can fall out of the first positioning groove 111. After the pipe fitting is pushed out of the first positioning groove 111, the operator can release the first shift block 140, and the spring member will return to its original position. The spring member drives the first shift block 140 and the push rod 130 to move forward, causing the rear end of the push rod 130 to retract into the guide hole 160, allowing the operator to place the next pipe fitting into the first positioning groove 111.

[0045] The length of the mounting slot 120 is parallel to the front-to-back direction, and the first shift block 140 abuts against the inner sidewall of the mounting slot 120, thereby guiding the forward and backward movement of the first shift block 140. Specifically, a spring member is sleeved onto the push rod 130, with its front and rear ends connected to the lower end of the first shift block 140 and the inner sidewall of the mounting slot 120, respectively. The upper end of the first shift block 140 is positioned above the mounting slot 120, meaning that the upper end of the first shift block 140 extends out of the mounting slot 120, allowing the operator to drive the first shift block 140 for forward and backward movement.

[0046] refer to Figure 8 、 Figure 9 、 Figure 10 and Figure 12 The clamping assembly 200 includes a clamping block 210, a push rod 220, a connecting arm 230, a swing arm 240 and a hinge seat 250. The clamping block 210 can be slidably connected to the base plate 100 in the front-to-back direction. The clamping block 210 is arranged behind the positioning block 110, and the hinge seat 250 is arranged on the base plate 100. The push rod 220 is parallel to the front-to-back direction. The front end of the push rod 220 is connected to the clamping block 210, and the rear end of the push rod 220 is hinged to one end of the connecting arm 230. The other end of the connecting arm 230 is hinged to the lower end of the swing arm 240. The middle part of the swing arm 240 is hinged to the hinge seat 250, and the upper end of the swing arm 240 can swing downward so that the clamping block 210 can move forward and approach the positioning block 110, so that the clamping block 210 can press the main body of the pipe fitting against the inner wall of the first positioning groove 111.

[0047] The middle portion of the swing arm 240 is located between the lower end of the swing arm 240 and the upper end of the swing arm 240. It is understood that after the operator places the main body of the pipe fitting into the first positioning slot 111 on the positioning block 110, the operator can press downward on the upper end of the swing arm 240, causing the upper end of the swing arm 240 to swing downward. Because the middle portion of the swing arm 240 is hinged to the hinge seat 250, the lower end of the swing arm 240 will swing upward. Because the other end of the connecting arm 230 is hinged to the lower end of the swing arm 240, and the other end of the connecting arm 230 is hinged to the rear end of the push rod 220, when the lower end of the swing arm 240 swings upward, the lower end of the swing arm 240 pushes the connecting arm 230 forward, causing the connecting arm 230 to drive the push rod 220 forward, and in turn, causing the push rod 220 to push the pressing block 210 forward. The downward-moving pressing block 210 approaches the positioning block 110, so that the pressing block 210 can act on the main body of the pipe fitting in the first positioning groove 111, and then the main body of the pipe fitting is pressed against the inner wall of the first positioning groove 111, that is, the inner wall of the first positioning groove 111 and the pressing block 210 clamp the main body of the pipe fitting. At this time, the position of the pipe fitting is fixed, ensuring that the pipe fitting will not shake during the subsequent bending process.

[0048] The structure of the push rod 220, the connecting arm 230 and the swing arm 240 is a common connecting rod structure with self-locking properties, that is, when the clamping block 210 is in the state of clamping the pipe, the push rod 220, the connecting arm 230 and the swing arm 240 will not move or swing without the action of external force, so as to ensure that the clamping block 210 can always be in the state of clamping the pipe during the bending process.

[0049] After the pipe is bent, the operator can lift the upper end of the swing arm 240, causing it to swing upward. Because the middle portion of the swing arm 240 is hinged to the hinge seat 250, the lower end of the swing arm 240 will swing downward. Because the other end of the connecting arm 230 is hinged to the lower end of the swing arm 240, and the other end of the connecting arm 230 is hinged to the rear end of the push rod 220, when the lower end of the swing arm 240 swings downward, the lower end of the swing arm 240 pulls the connecting arm 230 backward, causing the connecting arm 230 to pull the push rod 220 backward, which in turn causes the push rod 220 to pull the pressing block 210 backward. The backward movement of the pressing block 210 moves away from the positioning block 110, causing it to release the main body of the pipe in the first positioning slot 111, allowing the operator to remove the pipe from the first positioning slot 111.

[0050] refer to Figure 3 and Figure 5A guide groove 211 is formed on the pressing block 210, and the guide groove 211 is parallel to the front-to-back direction. A guide protrusion 150 is provided on the base plate 100, and the guide protrusion 150 is parallel to the front-to-back direction, and the guide protrusion 150 extends into the guide groove 211. The pressing assembly 200 also includes a guide rod, and a matching hole is provided on the pressing block 210. The guide rod is parallel to the front-to-back direction, and the guide rod is provided on the positioning block 110, and the guide rod is passed through the matching hole. It can be understood that the guide protrusion 150 on the base plate 100 extends into the guide groove 211 on the pressing block 210, and the guide protrusion 150 can abut against the inner wall of the guide groove 211, so that the guide protrusion 150 can guide the front-to-back movement of the pressing block 210, thereby ensuring that the pressing block 210 can move smoothly along the front-to-back direction on the base plate 100. Similarly, the guide rod on the positioning block 110 is inserted into the matching hole of the clamping block 210, and the hole wall of the matching hole can abut against the guide rod, so that the guide rod can guide the forward and backward movement of the clamping block 210 to ensure that the clamping block 210 can move smoothly in the forward and backward direction on the base plate 100.

[0051] refer to Figure 10 and Figure 12 The pressing assembly 200 further includes a second shift block 260, which is disposed on the upper end of the swing arm 240. It is understood that the operator can use the second shift block 260 to drive the upper end of the swing arm 240 to swing upward or downward, thereby improving the convenience of the operator in driving the swing arm 240 to swing.

[0052] As an embodiment of the present invention, a second positioning groove is provided on the side of the pressing block 210 facing the positioning block 110, and the second positioning groove is used to accommodate the main body of the pipe fitting. It can be understood that after the pressing block 210 moves forward into position, the main body of the pipe fitting is simultaneously in the first positioning groove 111 and the second positioning groove, that is, the inner walls of the first positioning groove 111 and the second positioning groove play the role of clamping the pipe fitting. The pressing block 210 presses the main body of the pipe fitting through the inner wall of the second positioning groove, thereby increasing the contact area between the pressing block 210 and the pipe fitting, improving the clamping effect of the pressing block 210, and ensuring that the pipe fitting does not shake during the bending process. Specifically, the second positioning groove is a second-type groove.

[0053] refer to Figures 10 to 12The bending assembly 300 includes a forming column 310, a turntable 320 and a bending block 330. The forming column 310 is arranged on the base plate 100. A forming ring groove 311 is provided on the side wall of the forming column 310. The forming ring groove 311 is connected to the first positioning groove 111. The turntable 320 can be rotatably connected to the base plate 100 around its own axis. The rotation axis of the turntable 320 coincides with the axis of the forming column 310. The bending block 330 can be detachably connected to the turntable 320. A forming groove 331 is provided on the bending block 330. The forming groove 331 is used to accommodate the branch pipe of the pipe fitting. The turntable 320 can drive the bending block 330 to rotate so that the inner wall of the forming groove 331 can bend the branch of the pipe fitting and make the branch of the pipe fitting fit on the inner wall of the forming ring groove 311.

[0054] In the embodiment of the present utility model, reference Figure 10 and Figure 12 The turntable 320 is also provided with a pressure column 340. The gap between the pressure column 340 and the forming column 310 is used to insert the bending block 330. It is understood that when a pipe needs to be bent, the operator can place the main body of the pipe into the first positioning groove 111 on the positioning block 110, so that the inner wall of the first positioning groove 111 can position the pipe. After the pipe is positioned, the operator can swing the upper end of the swing arm 240 downward, causing the pressure block 210 to compress the main body of the pipe in the first positioning groove 111. After the pipe is compressed, the operator places the bending block 330 between the forming column 310 and the pressure column 340, and allows the branch pipe of the pipe to pass through the forming groove 331 on the bending block 330. The operator then drives the turntable 320 to rotate forward, which drives the pressure column 340 to rotate. The pressure column 340 will abut against the bending block 330 and drive the bending block 330 to rotate. At this time, the bending block 330 will abut against the forming column 310 and rotate around the forming column 310. During the rotation of the bending block 330, the inner wall of the forming groove 331 on the bending block 330 will bend the branch of the pipe along the forming ring groove 311, so that the branch of the pipe can be attached to the inner wall of the forming ring groove 311. The inner wall of the forming ring groove 311 plays a guiding and shaping role in the deformation of the branch of the pipe, so that the branch of the pipe is bent into Figure 2 The arc shape in the middle.

[0055] After the tube is bent, the operator rotates the turntable 320 and removes the bending block 330 from the turntable 320. The operator then swings the upper end of the swing arm 240 upward, moving the pressing block 210 away from the positioning block 110 and releasing the tube. The operator then moves the first shifting block 140 backward, causing the tube to fall out of the first positioning slot 111, completing the bending process for the tube.

[0056] It should be explained that, during the rotation of the turntable 320, the bending block 330 always maintains contact with the forming column 310 and the pressure column 340, so that the bending block 330 can rotate along with the turntable 320. In the embodiment of the present invention, the axis of the turntable 320 coincides with the axis of the forming column 310, that is, the turntable 320 is also rotating around the axis of the forming column 310 during the process of rotating around its own axis. A limiting structure is also provided on the bottom plate 100, which is used to limit the rotation angle of the turntable 320 so that the bending block 330 can bend the branch of the pipe into Figure 2 The 90° arc shape in the middle.

[0057] refer to Figure 10 The bending assembly 300 includes a gripping portion 350, which is connected to the turntable 320. It is understandable that the operator can drive the turntable 320 to rotate through the gripping portion 350, which improves the convenience of the operator in rotating the turntable 320.

[0058] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A pipe bending device, characterized in that: include: Baseplate: A positioning block, the positioning block is arranged on the bottom plate, and a first positioning groove is formed on the positioning block, and the first positioning groove is used to accommodate the main body of the pipe; a pressing assembly, the pressing assembly being disposed on the bottom plate and being used to press the main body of the pipe against the inner wall of the first positioning groove; a bending assembly, the bending assembly being arranged on the bottom plate and being used for bending the branch pipe of the pipe fitting in the first positioning groove; A push rod, the push rod is parallel to the front-to-back direction, a guide hole is formed on the positioning block, the guide hole is connected to the first positioning groove, the push rod can be slidably inserted into the guide hole along the front-to-back direction, and the rear end of the push rod can extend from the guide hole and extend into the first positioning groove, so that the rear end of the push rod can push the pipe out of the first positioning groove.

2. The pipe bending device according to claim 1, characterized in that: It also includes a spring member, a mounting groove is formed on the positioning block, the mounting groove is connected to the guide hole, the rear end of the push rod is passed through the guide hole, the front end of the push rod is passed through the mounting groove, the spring member is arranged in the mounting groove, the spring member is sleeved on the push rod, the two ends of the spring member are respectively connected to the push rod and the inner side wall of the mounting groove, and the spring member is used to drive the push rod to move forward so that the rear end of the push rod enters the guide hole.

3. The pipe bending device according to claim 2, characterized in that: It also includes a first shift block, the length direction of the mounting groove is parallel to the front-to-back direction, the lower end of the first shift block extends into the mounting groove, the lower end of the first shift block is connected to the front end of the push rod, the lower end of the first shift block abuts against the inner side wall of the mounting groove, and the upper end of the first shift block is arranged above the mounting groove.

4. The pipe bending device according to claim 1, characterized in that: The clamping assembly includes a clamping block, a push rod, a connecting arm, a swing arm and a hinge seat. The clamping block can be slidably connected to the base plate in the front-to-back direction. The clamping block is arranged behind the positioning block. The hinge seat is arranged on the base plate. The push rod is parallel to the front-to-back direction. The front end of the push rod is connected to the clamping block, the rear end of the push rod is hinged to one end of the connecting arm, the other end of the connecting arm is hinged to the lower end of the swing arm, the middle part of the swing arm is hinged to the hinge seat, and the upper end of the swing arm can swing downward so that the clamping block can move forward and approach the positioning block, so that the clamping block can press the main body of the pipe fitting against the inner wall of the first positioning groove.

5. The pipe bending device according to claim 4, characterized in that: The clamping assembly further includes a second shift block, which is arranged on the upper end of the swing arm.

6. The pipe bending device according to claim 4, characterized in that: A guide groove is formed on the pressing block, and the guide groove is parallel to the front-back direction. A guide protrusion is provided on the bottom plate, and the guide protrusion is parallel to the front-back direction and extends into the guide groove.

7. The pipe bending device according to claim 4, characterized in that: The clamping assembly also includes a guide rod. A matching hole is opened on the clamping block. The guide rod is parallel to the front-back direction. The guide rod is arranged on the positioning block and passes through the matching hole.

8. The pipe bending device according to claim 4, characterized in that: A second positioning groove is formed on a side of the pressing block facing the positioning block, and the second positioning groove is used to accommodate the main body of the pipe.

9. The pipe bending device according to claim 1, characterized in that: The bending assembly includes a forming column, a turntable and a bending block. The forming column is arranged on the base plate. A forming ring groove is provided on the side wall of the forming column. The forming ring groove is connected to the first positioning groove. The turntable can be rotatably connected to the base plate around its own axis. The rotation axis of the turntable coincides with the axis of the forming column. The bending block can be detachably connected to the turntable. A forming groove is provided on the bending block. The forming groove is used to accommodate the branch pipe of the pipe fitting. The turntable can drive the bending block to rotate so that the inner wall of the forming groove can bend the branch of the pipe fitting and make the branch of the pipe fitting fit on the inner wall of the forming ring groove.

10. The pipe bending device according to claim 9, characterized in that: The bending assembly includes a gripping portion connected to the turntable.

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