Batch bending device for U-shaped pipes

Abstract

The utility model discloses a device for bending U-shaped pipes in batches, which belongs to the technical field of pipe bending equipment and comprises a base station. A two-way synchronous pipe bending mechanism is arranged on the base table and comprises a driving assembly, a pipe bending assembly and a lever type material pressing and fixing assembly. The base station is further provided with an automatic feeding and discharging mechanism used for automatically pushing blanks to the pipe bending assembly for pipe bending machining and automatically pushing finished products out of the pipe bending assembly. By means of the mode, blanks are automatically moved to the pipe bending assemblies through the automatic feeding and discharging mechanism, the blanks are pressed to the pipe bending assemblies through the lever type material pressing and fixing assembly to be fixed, then the driving assembly drives the two pipe bending assemblies to synchronously and reversely move, the two ends of the blanks are bent by 90 degrees, and therefore the blanks are machined to be in a U shape; and the automatic feeding and discharging mechanism automatically pushes out the finished products forwards, so that automatic bent pipe forming operation of the U-shaped pipes is achieved, and the requirement for batched forming of the U-shaped pipes is met.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending equipment technology, specifically to a U-shaped pipe batch bending device. Background Technology

[0002] U-shaped tubes are widely used in automotive cooling lines, fuel lines, and exhaust lines to bypass other components and maintain the smooth flow of the internal medium.

[0003] Chinese patent CN219380825U discloses a steel pipe bending machine, including a worktable; a transmission structure, with an electric push rod on one side of the top of the worktable, and the output end of the electric push rod connected to the transmission structure, the transmission structure including a first hinge block, the first hinge block and the output end of the electric push rod being universally hinged; and a force application structure, with a support side rod on the other side of the top of the worktable, and a force application structure at the top of the support side rod, the force application structure including a bending die, the bending die and the support side rod being fixedly connected. However, the structure of this bending machine is complex and difficult to adapt to the assembly line operation of mass U-shaped pipe bending.

[0004] Based on this, this utility model designs a U-shaped tube batch bending device to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a U-shaped tube batch bending device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for mass production of U-shaped pipes, comprising a base;

[0008] The base is provided with a bidirectional synchronous tube bending mechanism, which includes a driving component, a tube bending component and a lever-type pressing and fixing component. Two sets of tube bending components are set at the upper end of the base and are symmetrically distributed left and right. The driving component is set at the lower end of the base. The driving component is used to drive the two sets of tube bending components to bend the blank synchronously in the opposite direction. The lever-type pressing and fixing component is set between the two sets of tube bending components and is used to fix the workpiece when the tube bending component bends the workpiece.

[0009] The base is also equipped with an automated loading and unloading mechanism for automatically pushing the blank onto the bending assembly for bending and automatically ejecting the finished part from the bending assembly.

[0010] Furthermore, the pipe bending assembly includes a rotating shaft, an arc mold, a straight groove mold, and a U-shaped frame. The rotating shaft is rotatably connected to the base via bearings. An arc mold is fixedly installed on the upper end of the rotating shaft. The U-shaped frame is fixedly connected to the arc mold, and a straight groove mold is fixedly installed on the U-shaped frame.

[0011] Furthermore, the straight groove mold has a straight groove with a semi-circular cross-section at one end near the arc mold. The arc mold is generally wheel-shaped and has arc grooves with a semi-circular cross-section arranged along the circumference of the rim. The straight groove and the arc groove together form a bending space for bending the blank.

[0012] Furthermore, the drive assembly includes a motor, a bracket, and gears. The lower end of the rotating shaft passes through the base and is fixedly connected to the gears, and the gears at the lower ends of the two rotating shafts are meshed together. The bracket is fixedly installed at the lower end of the base, the motor is fixedly connected to the bracket, and the output end of the motor is fixedly connected to any one of the gears.

[0013] Furthermore, the lever-type pressing and fixing assembly includes a pressing block, a lever, and a bracket. The bracket is fixedly connected to the base and hinged to the lever. The pressing block is fixedly installed at the front end of the lever and has a slot that mates with the billet. One end of the pressing and pushing cylinder is hinged to the base, and the other end of the pressing and pushing cylinder is hinged to the rear end of the lever.

[0014] Furthermore, the hinge joint of the bracket and the lever is biased towards the end of the lever closer to the arc mold.

[0015] Furthermore, the automated loading and unloading mechanism includes an automatic loading component and an automatic unloading component mounted on the base. The automatic loading component is located on the left and right sides of the bending component, and the automatic unloading component is located on the front side of the bending component. The automatic loading component is used to automatically feed the blank into the bending space between the straight groove and the arc groove and to position the blank. The automatic unloading component is used to push the finished part forward from the bending space.

[0016] Furthermore, the automatic feeding assembly includes a top feeding assembly disposed on the rear side of the bending assembly and a discharge assembly disposed on the front side of the bending assembly. The top feeding assembly is used to push the finished part forward, and the discharge assembly is used to pick up the pushed-out finished part.

[0017] Compared with the prior art, the advantages of this utility model are as follows: 1. The blank is automatically moved to the bending assembly by the automated loading and unloading mechanism. The blank is fixed by the lever-type pressing and fixing assembly. Then the driving assembly drives the two bending assemblies to move synchronously in opposite directions, bending the two ends of the blank by 90 degrees, thereby processing the blank into a U-shape. The automated loading and unloading mechanism then automatically pushes the finished material forward, thereby realizing the automated bending and forming operation of U-shaped tubes. It has high processing efficiency and is suitable for the mass forming needs of U-shaped tubes. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This utility model provides a three-dimensional U-shaped tube batch bending device. Figure 1 ;

[0020] Figure 2 This is a front view of a U-shaped tube mass bending device according to the present invention;

[0021] Figure 3 This is a right view of a U-shaped tube batch bending device according to the present invention;

[0022] Figure 4 This utility model provides a three-dimensional U-shaped tube batch bending device. Figure 2 ;

[0023] Figure 5 This utility model provides a three-dimensional U-shaped tube batch bending device. Figure 3 ;

[0024] Figure 6 for Figure 4 Enlarged view of point A in the middle.

[0025] The labels in the diagram represent:

[0026] 1. Base; 2. Bidirectional synchronous pipe bending mechanism; 21. Drive assembly; 211. Motor; 212. Bracket; 213. Gear; 22. Pipe bending assembly; 221. Rotating shaft; 222. Arc mold; 223. Straight groove mold; 224. U-shaped frame; 23. Lever-type pressing and fixing assembly; 231. Pressing block; 232. Lever; 233. Bracket; 234. Pressing and pushing cylinder; 3. Automated loading and unloading mechanism; 31. Automatic loading assembly; 311. Feeding tray; 312. Linear module; 313. Pushing block; 314. Limiting block; 32. Automatic unloading assembly; 321. Top block; 322. Discharge pushing cylinder; 323. Discharge inclined plate; 324. Stop block; 325. Trapezoidal block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0029] In some embodiments, please refer to the accompanying drawings. Figure 1 A U-shaped tube batch bending device, comprising a base 1;

[0030] The base 1 is provided with a bidirectional synchronous tube bending mechanism 2. The bidirectional synchronous tube bending mechanism 2 includes a drive component 21, a tube bending component 22 and a lever-type pressing and fixing component 23. The two sets of tube bending components 22 are arranged on the upper end of the base 1 and are symmetrically distributed on the left and right. The drive component 21 is arranged on the lower end of the base 1. The drive component 21 is used to drive the two sets of tube bending components 22 to bend the blank synchronously in the opposite direction. The lever-type pressing and fixing component 23 is arranged between the two sets of tube bending components 22 and is used to fix the workpiece when the tube bending component 22 bends the workpiece.

[0031] The base 1 is also equipped with an automated loading and unloading mechanism 3 for automatically pushing the blank onto the bending assembly 22 for bending and automatically pushing the finished part off the bending assembly 22.

[0032] In this invention, the blank is automatically moved to the bending assembly 22 by the automated loading and unloading mechanism 3, and the blank is fixed by the lever-type pressing and fixing assembly 23. Then, the drive assembly 21 drives the two bending assemblies 22 to move synchronously in opposite directions, bending the two ends of the blank by 90 degrees, thereby processing the blank into a U-shape. The automated loading and unloading mechanism 3 then automatically pushes the finished material forward, thus realizing the automated bending and forming operation of U-shaped tubes. It has high processing efficiency and is suitable for the mass forming needs of U-shaped tubes.

[0033] Please see Figures 2-5 The pipe bending assembly 22 includes a rotating shaft 221, an arc mold 222, a straight groove mold 223, and a U-shaped frame 224. The rotating shaft 221 is rotatably connected to the base 1 through a bearing. The arc mold 222 is fixedly installed on the upper end of the rotating shaft 221. The U-shaped frame 224 is fixedly connected to the arc mold 222. The straight groove mold 223 is fixedly installed on the U-shaped frame 224.

[0034] The straight groove mold 223 has a straight groove with a semi-circular cross-section at one end near the arc mold 222. The arc mold 222 is generally wheel-shaped and has arc grooves with a semi-circular cross-section arranged along the circumference of the rim. The straight groove and the arc groove together form a bending space for bending the blank.

[0035] The drive assembly 21 includes a motor 211, a bracket 212, and a gear 213. The lower end of the rotating shaft 221 passes through the base 1 and is fixedly connected to the gear 213, and the gears 213 at the lower ends of the two rotating shafts 221 are meshed together. The bracket 212 is fixedly installed at the lower end of the base 1, the motor 211 is fixedly connected to the bracket 212, and the output end of the motor 211 is fixedly connected to any one of the gears 213.

[0036] The lever-type pressing and fixing assembly 23 includes a pressing block 231, a lever 232, and a bracket 233. The bracket 233 is fixedly connected to the base 1 and hinged to the lever 232. The hinged part of the bracket 233 and the lever 232 is biased towards the end of the lever 232 closer to the arc mold 222. The pressing block 231 is fixedly installed at the front end of the lever 232. The pressing block 231 is provided with a slot that mates with the blank. One end of the pressing push cylinder 234 is hinged to the base 1, and the other end of the pressing push cylinder 234 is hinged to the rear end of the lever 232.

[0037] In this invention, after the blank is positioned in the bending space, the rear end of the upper pusher cylinder 234 pushes the lever 232 to lift the lever 232, and the pressure block 231 presses the blank against the arc mold 222. The lever 232 amplifies the power of the pusher cylinder 234 to achieve a stable fixing effect on the blank. Subsequently, the motor 211 drives the two gears 213 to rotate synchronously in opposite directions, so that the rotating shafts 221 of the two bending components 22 rotate synchronously in opposite directions. With the cooperation of the arc mold 222 and the straight groove mold 223, the two ends of the blank are bent at ninety degrees, realizing the automated forming operation of the U-shaped tube.

[0038] Please see Figure 5 and Figure 6 The automated loading and unloading mechanism 3 includes an automatic loading component 31 and an automatic unloading component 32 mounted on the base 1. The automatic loading component 31 is located on the left and right sides of the bending pipe component 22, and the automatic unloading component 32 is located on the front side of the bending pipe component 22. The automatic loading component 31 is used to automatically feed the blank into the bending pipe space between the straight groove and the arc groove and make the blank in place. The automatic unloading component 32 is used to push the finished part forward from the bending pipe space.

[0039] The automatic feeding assembly 31 includes a feeding tray 311, a linear module 312, and a pusher block 313. The feeding tray 311 for accommodating the blank is fixedly installed on the left side of the base 1. The cross-section of the feeding tray 311 is set to U-shape, and the two side plates of the feeding tray 311 are bent outward so that the feeding tray 311 can stably support the round tube blank.

[0040] The linear module 312 is fixedly connected to the base 1, and a pusher block 313 for pushing the blank is fixedly installed on the moving end of the linear module 312; the linear module 312 adopts mature technology in the field, such as a cylinder slide or a motor screw slide.

[0041] The automatic feeding assembly 31 also includes a limiting block 314, which is fixedly installed on the base 1 and located on the right side of the bending assembly 22. The limiting block 314 is used to block the blank to control the feeding depth of the blank, and the limiting block 314 is set slightly inclined to avoid blocking the bending operation of the blank.

[0042] The automatic feeding component 32 includes a top feeding component disposed on the rear side of the bending component 22 and a discharge component disposed on the front side of the bending component 22. The top feeding component is used to push the finished part forward, and the discharge component is used to pick up the pushed-out finished part.

[0043] The top material assembly includes a top block 321 and a discharge push cylinder 322. The discharge push cylinder 322 is fixedly connected to the base 1. The top block 321 is fixedly installed at the output end of the discharge push cylinder 322. The front end of the top block 321 is provided with a slot for matching the billet.

[0044] The discharge assembly includes a discharge ramp 323, a stop block 324, and a trapezoidal block 325. The discharge ramp 323 is fixedly installed at the front end of the base 1, and the stop block 324 is fixedly installed at the front end of the discharge ramp 323. The width of the discharge ramp 323 is the same as the distance between the two sides of the finished U-shaped tube. Two trapezoidal blocks 325 are fixedly installed on the base 1 and symmetrically distributed on the left and right. The trapezoidal blocks 325 are located on the front side of the bending tube assembly 22 and are used to guide the ejected finished parts to flow onto the discharge ramp 323.

[0045] The front end of the discharge ramp 323 is provided with a through groove for easy gripping of finished parts by a robotic arm or manual labor.

[0046] In this utility model, the blank is placed in the feeding tray 311 by manual labor, a robotic arm or a round tube feeding device. The linear module 312 drives the blank to bend the tube space through the push block 313, and the feeding depth of the blank is limited by the limiting block 314 to achieve precise feeding of the blank and ensure that the length of both ends of the finished part formed by bending the tube meets the set value.

[0047] After the blank is bent and shaped, the pressing cylinder 234 drives the pressing block 231 to reset through the lever 232 to release the blank. Then the discharge cylinder 322 drives the top block 321 to move forward, pushing the finished part out of the bent tube channel. Under the guidance of the trapezoidal block 325, the finished part moves to the discharge inclined plate 323 and is finally blocked and positioned by the stop block 324. At this time, the bent parts on both sides of the finished part are located on both sides of the discharge inclined plate 323 and are suspended in the air.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A U-shaped pipe batch bending device, comprising a base (1), characterized in that: a bidirectional synchronous bending mechanism (2) is arranged on the base (1), the bidirectional synchronous bending mechanism (2) comprises a driving assembly (21), a bending assembly (22) and a lever type material pressing fixing assembly (23), two sets of bending assemblies (22) are arranged on the upper end of the base (1) and are symmetrically distributed left and right, the driving assembly (21) is arranged on the lower end of the base (1), the driving assembly (21) is used for driving the two sets of bending assemblies (22) to synchronously and reversely bend the blank, and the lever type material pressing fixing assembly (23) is arranged between the two sets of bending assemblies (22) and is used for fixing the workpiece when the bending assembly (22) bends the workpiece; An automatic feeding and discharging mechanism (3) for automatically pushing the blank to the bending assembly (22) for bending processing and automatically pushing the finished product out of the bending assembly (22) is further arranged on the base (1). The bending assembly (22) comprises a rotating shaft (221), a circular arc die (222), a straight slot die (223) and a U-shaped frame (224), the rotating shaft (221) is rotationally connected with the base (1) through a bearing, the circular arc die (222) is fixedly installed on the upper end of the rotating shaft (221), the U-shaped frame (224) is fixedly connected with the circular arc die (222), and the straight slot die (223) is fixedly installed on the U-shaped frame (224).

2. The U-tube batch bending device of claim 1, wherein, The straight slot die (223) is provided with a straight slot with a semicircular slot section at one end close to the circular arc die (222), the circular arc die (222) is in the shape of a rotating wheel and has a circular arc slot with a semicircular slot section arranged along the circumferential direction of the rim, and the straight slot and the circular arc slot form a bending space for bending the blank.

3. The U-bend batch bending apparatus according to claim 2, wherein The driving assembly (21) comprises a motor (211), a support (212) and a gear (213), the lower end of the rotating shaft (221) penetrates through the base (1) and is fixedly connected with the gear (213), and the gears (213) at the lower ends of the two rotating shafts (221) are meshingly connected; the support (212) is fixedly installed on the lower end of the base (1), the motor (211) is fixedly connected with the support (212), and the output end of the motor (211) is fixedly connected with any gear (213).

4. The U-bend batch bending apparatus according to claim 3, wherein The lever type material pressing fixing assembly (23) comprises a pressing block (231), a lever (232) and a bracket (233), the bracket (233) is fixedly connected with the base (1), the bracket (233) is hingedly connected with the lever (232), the front end of the lever (232) is fixedly installed with the pressing block (231), and the pressing block (231) is provided with a slot matched with the blank; one end of a material pressing pushing cylinder (234) is hingedly connected with the base (1), and the other end of the material pressing pushing cylinder (234) is hingedly connected with the rear end of the lever (232).

5. The U-bend batch bending apparatus according to claim 4, wherein Moreover, the hinged parts of the bracket (233) and the lever (232) are deviated towards one end of the lever (232) close to the circular arc die (222).

6. The U-bend batch bending apparatus according to claim 5, wherein ​ 7. The U-pipe batch bending device of claim 6, wherein, The automatic feeding and discharging mechanism (3) comprises an automatic feeding assembly (31) and an automatic discharging assembly (32) mounted on the base (1), the automatic feeding assembly (31) is located on the left and right sides of the pipe bending assembly (22), the automatic discharging assembly (32) is located on the front side of the pipe bending assembly (22), the automatic feeding assembly (31) is used for feeding the blank into the pipe bending space between the straight groove and the circular groove and positioning the blank, and the automatic discharging assembly (32) is used for pushing the finished product out of the pipe bending space.

8. The U-pipe batch bending device of claim 7, wherein, The automatic discharging assembly (32) comprises a lifting assembly arranged on the rear side of the pipe bending assembly (22) and a discharging assembly arranged on the front side of the pipe bending assembly (22), the lifting assembly is used for lifting the finished product, and the discharging assembly is used for receiving the lifted finished product.

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