A pipe bending die and a pipe bending apparatus

Abstract

The present application relates to the technical field of pipe bending processing, and particularly relates to a pipe bending die and a pipe bending device, which comprise a workbench, a supporting frame and a pipe bending die, the top of the workbench is fixedly provided with a pushing assembly, the side of the workbench is fixedly provided with a feeding assembly, the side of the feeding channel is communicatively provided with a feeding frame, the top of the supporting frame is provided with a lifting assembly, the side of the pipe bending die is provided with a rotating assembly, the rotating assembly is drivingly connected with a first mounting plate, the side, away from the supporting frame, of the first mounting plate is provided with a pressing-down assembly, the first mounting plate is provided with a pushing piece drivingly connected with a second core rod, and the bottom of the pipe bending die is provided with a collecting box. During pipe bending operation, the guide die is pressed against one end of the pipe while moving along with the pipe, and cooperates with the anti-wrinkle block to complete the anti-wrinkle and anti-scratch work of the pipe, thereby improving the pipe bending processing quality, and improving the pipe bending processing efficiency due to high automation.

Description

Technical Field

[0001] This invention relates to the field of pipe bending technology, and in particular to a pipe bending mold and pipe bending equipment. Background Technology

[0002] Pipe bending technology is widely used in various industries such as boiler and pressure vessel manufacturing, central air conditioning manufacturing, automobile industry, aerospace industry, and shipbuilding. The quality of pipe bending directly affects the structural rationality, safety, and reliability of products in these industries.

[0003] The existing Chinese patent, published on June 9, 2020, with publication number CN210701849U, is entitled "A Simple Pipe Bending Device". It includes a bottom support, a platform installed at the top of the bottom support, a vertically arranged pipe fixing part and a support part fixed on the upper surface of the platform, both of which are cylindrical. A sleeve is fitted on the support part, and a pipe bending jig is installed between the sleeve and the bottom support. The pipe bending jig is welded to the bottom support. The side of the pipe bending jig is curved. A manual operating handle is installed on the sleeve, and a vertically downward bending component is installed on the manual operating handle.

[0004] The aforementioned prior art has the following drawbacks:

[0005] 1. When bending pipe fittings, workers usually rely mainly on their sense of touch to control the degree of bending, which makes it difficult to guarantee the accuracy of pipe bending. At the same time, if the inner arc diameter of the bend is too small, it is easy to wrinkle, thereby reducing the quality of the entire batch of products.

[0006] 2. The low level of automation seriously affects the efficiency of pipe bending production. Summary of the Invention

[0007] In view of this, the purpose of this invention is to provide a pipe bending mold and pipe bending equipment to solve the problems that existing pipe bending equipment has difficulty in ensuring the accuracy of bending processing, is prone to wrinkling which affects product quality, and has a low degree of automation, which seriously affects the efficiency of pipe bending production.

[0008] To achieve the above objectives, the present invention provides a pipe bending mold, comprising:

[0009] A pipe bending die has inserts extending along the tangential direction on its outer wall;

[0010] The anti-wrinkle block has a feeding channel fixed at one end and is tangent to the outer wall of the bending die at the other end, and the top of the anti-wrinkle block is flush with the top of the insert.

[0011] A guide mold is disposed on top of the anti-wrinkle block;

[0012] A clamping block is positioned on top of the insert;

[0013] A first core rod is disposed in the feeding channel, and a first plug is fixedly provided at one end of the first core rod near the bending die plate.

[0014] The second core rod is located at a position on the insert away from the anti-wrinkle block. A second plug is fixed at one end of the second core rod near the bending mold plate, and the second core rod is coaxial with the first core rod when the anti-wrinkle block and the insert are flush.

[0015] A pipe bending device includes a worktable, a support frame fixedly mounted on the top of the worktable, and a pipe bending die. A feeding channel is fixedly connected to the top of the support frame. A pushing assembly is fixedly mounted on the top of the worktable and is throttle-connected to the end of a first mandrel away from the anti-wrinkle block. A feeding assembly is fixedly mounted on the side of the worktable. A feeding frame is connected to the side of the feeding channel, with the end of the feeding frame away from the feeding channel inclined upwards and connected to the feeding assembly. A pushing assembly is throttle-connected to the feeding assembly. A lifting assembly is mounted on the top of the support frame and is throttle-connected to the top of the guide die. Next, a rotary assembly is provided on the side of the bending die, which is drivenly connected to the bending die and fixedly connected to one side of the support frame. A first mounting plate is drivenly connected to the rotary assembly, and a pressing assembly is installed on the side of the first mounting plate away from the support frame. The pressing assembly is drivenly connected to the top of the clamping block. A pushing member is installed on the first mounting plate and drivenly connected to the second mandrel. A collection box is provided at the bottom of the bending die, and the rotary assembly is drivenly connected to the lifting assembly, so that during the bending operation, the guide die moves with the pipe while pressing one end of the pipe.

[0016] Preferably, the feeding assembly includes:

[0017] The first cylinder is fixedly mounted on the top of the worktable;

[0018] The push rod has one end fixedly connected to the telescopic rod of the first cylinder, and the other end fixedly connected to the end of the first core rod away from the first plug.

[0019] Preferably, the feeding assembly includes:

[0020] The material feeding box is fixed to the side of the workbench;

[0021] An inclined plate is disposed inside the feeding box, one end of which is fixedly connected to an inner wall of the feeding box away from the workbench, and the other end is inclined downward.

[0022] A limiting partition is vertically fixed inside the feeding box, and a discharge port is provided on the limiting partition near the bottom;

[0023] A right-angled trapezoidal plate, one of its straight edges is attached to one side of the limiting partition, and the other straight edge is attached to an inner wall of the feeding box near the workbench;

[0024] A quantitative dispensing component is disposed between the inclined plate and the limiting partition, and the quantitative dispensing component is connected to the bottom of the right-angled trapezoidal plate via a transmission connection;

[0025] A threaded rod is inserted through the bottom of the feeding box, and one end of the threaded rod is fixedly connected to the bottom of the right-angled trapezoidal plate;

[0026] A bearing housing is provided at the bottom of the feeding box. One end of the bearing housing is fixedly connected to the workbench, and the other end is rotatably connected to a gear. The gear is sleeved on the threaded rod, and the threaded rod is threadedly connected to the gear.

[0027] A first rack is slidably connected to one side of the worktable, and the first rack meshes with the gear;

[0028] The first connecting plate has one end fixedly connected to the push rod and the other end fixedly connected to one end of the first rack.

[0029] Preferably, the quantitative dispensing component includes:

[0030] The feeding plate is fitted to the side of the limiting partition away from the right-angled trapezoidal plate. Each side of the feeding plate is fixed with a first sliding strip, and each first sliding strip is slidably connected to the inner wall of the feeding box.

[0031] A limiting inclined plate is disposed at the bottom of the feeding plate. There is a gap between the limiting inclined plate and the feeding plate for placing a pipe fitting. The sides of the limiting inclined plate are fixedly connected to the first sliding strip. The limiting inclined plate and the inclined plate have the same inclination angle.

[0032] The second connecting plate is disposed inside the discharge port. One end of the second connecting plate is fixedly connected to the limiting inclined plate, and the other end is provided with at least one pressure plate in a vertical state. The pressure plate is located at the bottom of the right-angled trapezoidal plate.

[0033] At least one first spring is disposed on the inner bottom of the feeding box, with the two ends of the first spring abutting against the inner bottom of the feeding box and the bottom of the pressure plate, respectively.

[0034] Preferably, the lifting assembly includes:

[0035] The first fixing block is fixed to the top of the support frame;

[0036] The first mounting bracket is fixed to the top of the first fixing block;

[0037] The first dual-axis cylinder is fixed on the top of the first mounting bracket, and both telescopic rods of the first dual-axis cylinder pass through the top of the first mounting bracket.

[0038] The top of the second mounting plate is fixedly connected to the two telescopic rods of the first dual-shaft cylinder. The end of the second mounting plate near the first mandrel extends downward vertically and is provided with a baffle.

[0039] The second slide bar is fixedly mounted on the top of the guide mold, and the top of the second slide bar is slidably connected to the bottom of the second mounting plate;

[0040] At least one connecting rod is inserted through the baffle, one end of the connecting rod is fixedly connected to the guide mold, and the other end is fixedly provided with a push block, and the push block is drivenly connected to the rotary assembly;

[0041] At least one second spring is sleeved on the connecting rod, with its two ends abutting against the push block and the baffle, respectively.

[0042] Preferably, the rotary assembly includes:

[0043] The motor is fixed to the top of the worktable;

[0044] A belt-type synchronous pulley, the center of which is fixedly connected to the output shaft of the motor;

[0045] The mounting box is fixedly connected to the support frame, and the top of the mounting box has a notch;

[0046] The toothed roller is located inside the mounting box. The shafts at both ends of the toothed roller pass through the side of the mounting box and are fixedly connected to the center of the bending die and the center of the belt pulley away from the motor, respectively.

[0047] The mounting slot is located at the bottom of the first fixing block;

[0048] The second rack is slidably connected in the mounting groove. One end of the second rack meshes with the toothed roller through a notch, and the top of one end of the second rack is chamfered.

[0049] The push plate has one end fixed to the top of the second rack and the other end in contact with the push block;

[0050] Two third connecting plates are respectively disposed on the side of the mounting box. One end of each third connecting plate is fixedly connected to the shaft of the toothed roller, and the other end is fixedly connected to the first mounting plate.

[0051] Preferably, the pressing component includes:

[0052] The second fixing block is fixed to the first mounting plate near the rotary assembly. Two parallel connecting arms are hinged to the side of the second fixing block near the clamping block, and the other end of each connecting arm is hinged to the clamping block.

[0053] The second cylinder is located on top of the second fixed block and is fixedly connected to the first mounting plate. A slider is hinged to the telescopic rod of the second cylinder, and the slider is slidably connected to the side of the upper connecting arm away from the lower connecting arm.

[0054] Preferably, a second mounting bracket is fixed on the side of the clamping block away from the first mounting plate, a second dual-axis cylinder is fixed on the top of the second mounting bracket, a third mounting plate is fixed through the two telescopic rods of the second dual-axis cylinder passing through the top of the second mounting bracket, and a pressure block is fixed on the bottom of the third mounting plate.

[0055] Preferably, the pushing member includes:

[0056] A fourth mounting plate is disposed on the side of the pressing assembly away from the first mounting plate. The fourth mounting plate is fixedly connected to the first mounting plate by a bolt structure, and a limiting groove is provided on the side of the fourth mounting plate near the clamping block.

[0057] The third mounting bracket has one end fixed to the side of the fourth mounting plate away from the pressing component, and the other end fixed with a third cylinder. The telescopic rod of the third cylinder passes through the third mounting bracket and is fixedly connected to the second mandrel.

[0058] The beneficial effects of this invention are as follows: The feeding assembly moves the pipe through the feeding frame into the feeding channel. The pushing assembly moves the first mandrel, causing its first plug to insert into the pipe, thus increasing the strength of the pipe at that end. The first mandrel moves one end of the pipe through the feeding channel and the anti-wrinkle block to the insert on the bending die. The pushing assembly moves the second mandrel, causing its second plug to insert into the other end of the pipe, thus increasing the strength of the pipe at that end. The lifting assembly moves the guide die downward, cooperating with the anti-wrinkle block to clamp one end of the pipe. The pressing assembly moves the clamp... The clamping block moves downwards, cooperating with the insert to clamp the other end of the pipe fitting. The rotating assembly drives the bending die, the first mounting plate, and the pusher to rotate, thus performing the pipe bending operation. At the same time, the rotating assembly drives the lifting assembly to move, so that during the pipe bending operation, the guide die, while pressing one end of the pipe fitting, moves with the pipe fitting and cooperates with the anti-wrinkle block to complete the anti-wrinkle and anti-scratch work on the pipe fitting. By resetting, the bent pipe falls into the collection box, thus completing the automated pipe bending operation of one pipe fitting. This not only improves the quality of pipe bending processing but also has a high degree of automation, thus improving the processing efficiency of pipe bending. Attached Figure Description

[0059] To more clearly illustrate the technical solutions in this invention 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 for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0060] Figure 1 This is a three-dimensional structural diagram of the pipe bending mold according to an embodiment of the present invention;

[0061] Figure 2 This is a three-dimensional structural diagram of the anti-wrinkle block according to an embodiment of the present invention;

[0062] Figure 3 This is a three-dimensional structural diagram of the pipe bending device according to an embodiment of the present invention;

[0063] Figure 4 This is a cross-sectional view of the feeding assembly according to an embodiment of the present invention;

[0064] Figure 5 This is a three-dimensional structural diagram of the lifting assembly according to an embodiment of the present invention;

[0065] Figure 6 This is a three-dimensional structural diagram of the rotary assembly according to an embodiment of the present invention;

[0066] Figure 7 This is a schematic diagram of the structure of the clamping block away from the pressing component in an embodiment of the present invention;

[0067] Figure 8 This is a three-dimensional structural diagram of the pusher component according to an embodiment of the present invention.

[0068] The diagram is marked as follows:

[0069] 1. Bending mold plate; 2. Insert; 3. Anti-wrinkle block; 4. Feeding channel; 5. Guide mold; 6. Clamping block; 7. First mandrel; 8. First plug; 9. Second mandrel; 10. Second plug; 11. Worktable; 12. Support frame; 13. Loading assembly; 14. Feeding frame; 15. Lifting assembly; 16. Rotating assembly; 17. First mounting plate; 18. Pressing assembly; 19. Pushing component; 20. Collection box; 21. First cylinder; 22. Push rod; 23. Discharge box; 24. Inclined plate; 25. Limiting partition; 26. Discharge port; 27. Right-angled trapezoidal plate; 28. Threaded rod; 29. ​​Bearing seat; 30. Gear; 31. First rack; 32. First connecting plate; 33. Discharge plate; 34. First slide bar; 35. Limiting inclined plate; 36. Second connecting plate; 37. Pressure plate; 38. First spring; 39. First fixing block; 40. First mounting bracket; 41. First dual-shaft cylinder; 42. Second mounting plate; 43. Baffle; 44. Second slide bar; 45. Connecting rod; 46. Push block; 47. Second spring; 48. Motor; 49. Belt synchronous pulley; 50. Mounting box; 51. Notch; 52. Toothed roller; 53. Mounting groove; 54. Second rack; 55. Push plate; 56. Third connecting plate; 57. Second fixing block; 58. Connecting arm; 59. Second cylinder; 60. Slider; 61. Second mounting bracket; 62. Second dual-shaft cylinder; 63. Third mounting plate; 64. Pressure block; 65. Fourth mounting plate; 66. Limiting groove; 67. Third mounting bracket; 68. Third cylinder. Detailed Implementation

[0070] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0071] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0072] like Figures 1 to 8 As shown, a pipe bending mold includes:

[0073] The bending die 1 has inserts 2 extending along the tangential direction on its outer wall;

[0074] The anti-wrinkle block 3 has a feeding channel 4 fixed at one end and is tangential to the outer wall of the bending die 1 at the other end. The top of the anti-wrinkle block 3 is flush with the top of the insert 2.

[0075] Guide mold 5 is disposed on top of the anti-wrinkle block 3;

[0076] Clamping block 6 is disposed on top of insert 2;

[0077] A first core rod 7 is disposed in the feeding channel 4, and a first plug 8 is fixedly provided at one end of the first core rod 7 near the bending die plate 1.

[0078] The second core rod 9 is located at a position of the insert 2 away from the anti-wrinkle block 3. The second core rod 9 is fixed with a second plug 10 at one end near the bending mold plate 1. When the anti-wrinkle block 3 and the insert 2 are flush, the second core rod 9 is coaxially arranged with the first core rod 7.

[0079] A pipe bending device includes a workbench 11, a support frame 12 fixedly mounted on the top of the workbench 11, and a pipe bending die. A feeding channel 4 is fixedly connected to the top of the support frame 12. A pushing assembly is fixedly mounted on the top of the workbench 11, and the pushing assembly is operatively connected to the end of a first mandrel 7 away from the anti-wrinkle block 3. A feeding assembly 13 is fixedly mounted on the side of the workbench 11. A feeding frame 14 is connected to the side of the feeding channel 4, and the end of the feeding frame 14 away from the feeding channel 4 is inclined upwards and connected to the feeding assembly 13. A pushing assembly is operatively connected to the feeding assembly 13. A lifting assembly 15 is mounted on the top of the support frame 12, and the lifting assembly 15 is operatively connected to the top of the guide die 5. A rotating assembly 16 is provided on the side of the bending die 1. The rotating assembly 16 is pulsatorically connected to the bending die 1. The rotating assembly 16 is fixedly connected to one side of the support frame 12. A first mounting plate 17 is pulsatorically connected to the rotating assembly 16. A pressing assembly 18 is mounted on the side of the first mounting plate 17 away from the support frame 12. The pressing assembly 18 is pulsatorically connected to the top of the clamping block 6. A pushing member 19 is mounted on the first mounting plate 17 and pulsatorically connected to the second mandrel 9. A collecting box 20 is provided at the bottom of the bending die 1. The rotating assembly 16 is pulsatorically connected to the lifting assembly 15 so that during the bending operation, the guide mold 5 moves along with the pipe while pressing one end of the pipe.

[0080] For example, the feeding assembly 13 moves the pipe fitting through the feeding frame 14 into the feeding channel 4. The pushing assembly moves the first mandrel 7, causing the first plug 8 of the first mandrel 7 to be inserted into the pipe fitting, thereby increasing the strength of the pipe fitting at that end. The first mandrel 7 moves one end of the pipe fitting through the feeding channel 4 and the anti-wrinkle block 3 to the insert 2 on the bending die plate 1. The pushing assembly 19 moves the second mandrel 9, causing the second plug 10 of the second mandrel 9 to be inserted into the other end of the pipe fitting, thereby increasing the strength of the pipe fitting at that end. The lifting assembly 15 moves the guide mold 5 downward, cooperating with the anti-wrinkle block 3 to clamp one end of the pipe fitting. The pressing assembly 18 then moves the guide mold 5 downward. The movable clamping block 6 moves downward and cooperates with the insert 2 to clamp the other end of the pipe fitting. The rotating assembly 16 drives the bending die 1, the first mounting plate 17 and the pusher 19 to rotate, so as to perform the pipe bending work. At the same time, the rotating assembly 16 drives the lifting assembly 15 to move, so that during the pipe bending operation, the guide die 5 moves with the pipe fitting while pressing one end of the pipe fitting, and cooperates with the anti-wrinkle block 3 to complete the anti-wrinkle and anti-scratch work of the pipe fitting. The bent pipe falls into the collection box 20 by resetting, so as to complete the automated pipe bending work of one pipe fitting. This not only improves the quality of pipe bending processing, but also has a high degree of automation and improves the processing efficiency of pipe bending.

[0081] As an optional embodiment, the pusher assembly includes:

[0082] The first cylinder 21 is fixedly mounted on the top of the worktable 11;

[0083] The push rod 22 has one end fixedly connected to the telescopic rod of the first cylinder 21, and the other end fixedly connected to the end of the first core rod 7 away from the first plug 8.

[0084] For example, the first cylinder 21 drives the push rod 22 to move, and the push rod 22 drives one end of the first mandrel 7 to be inserted into the pipe fitting. The push rod 22 then drives one end of the pipe fitting to move through the feeding channel 4 and the anti-wrinkle block 3 to the insert 2 on the bending die plate 1, so as to complete the feeding work in the bending processing area.

[0085] As an optional embodiment, the feeding assembly 13 includes:

[0086] The material feeding box 23 is fixedly installed on the side of the workbench 11;

[0087] An inclined plate 24 is disposed inside the feeding box 23. One end of the inclined plate 24 is fixedly connected to an inner wall of the feeding box 23 away from the workbench 11, and the other end is inclined downward.

[0088] A limiting partition 25 is vertically fixed inside the feeding box 23, and a discharge port 26 is provided near the bottom of the limiting partition 25.

[0089] A right-angled trapezoidal plate 27 has one straight edge attached to one side of the limiting partition 25, and the other straight edge attached to an inner wall of the feeding box 23 near the workbench 11.

[0090] A quantitative dispensing component is disposed between the inclined plate 24 and the limiting partition 25, and the quantitative dispensing component is connected to the bottom of the right-angled trapezoidal plate 27 via a transmission connection.

[0091] A threaded rod 28 is inserted through the bottom of the feeding box 23, and one end of the threaded rod 28 is fixedly connected to the bottom of the right-angled trapezoidal plate 27;

[0092] A bearing seat 29 is disposed at the bottom of the feeding box 23. One end of the bearing seat 29 is fixedly connected to the workbench 11, and the other end is rotatably connected to a gear 30. The gear 30 is sleeved on the threaded rod 28, and the threaded rod 28 is threadedly connected to the gear 30.

[0093] The first rack 31 is slidably connected to one side of the worktable 11, and the first rack 31 meshes with the gear 30;

[0094] The first connecting plate 32 has one end fixedly connected to the push rod 22 and the other end fixedly connected to one end of the first rack 31.

[0095] As an optional embodiment, the quantitative dispensing component includes:

[0096] The feeding plate 33 is attached to the side of the limiting partition 25 away from the right-angled trapezoidal plate 27. The side of the feeding plate 33 is fixed with a first sliding strip 34, and each first sliding strip 34 is slidably connected to the inner side wall of the feeding box 23.

[0097] A limiting inclined plate 35 is disposed at the bottom of the feeding plate 33. There is a gap between the limiting inclined plate 35 and the feeding plate 33 for placing a pipe fitting. The sides of the limiting inclined plate 35 are fixedly connected to the first sliding strip 34. The limiting inclined plate 35 and the inclined plate 24 have the same inclination angle.

[0098] The second connecting plate 36 is disposed inside the discharge port 26. One end of the second connecting plate 36 is fixedly connected to the limiting inclined plate 35, and the other end is provided with at least one pressure plate 37 in a vertical state. The pressure plate 37 is located at the bottom of the right-angled trapezoidal plate 27.

[0099] At least one first spring 38 is disposed on the inner bottom of the feeding box 23, with the two ends of the first spring 38 abutting against the inner bottom of the feeding box 23 and the bottom of the pressure plate 37, respectively.

[0100] For example, when the push rod 22 moves the pipe through the first mandrel 7, it moves the first connecting plate 32, which in turn moves the first rack 31. The rack 31 then rotates the gear 30, which in turn moves the threaded rod 28 downwards. The threaded rod 28 moves the right-angled trapezoidal plate 27 downwards until it contacts the pressure plate 37, which in turn moves the pressure plate 37 downwards. The pressure plate 37, through the second connecting plate 36, moves the limiting inclined plate 35 downwards. The limiting inclined plate 35, through the first sliding bar 34, moves the discharge plate 33 downwards. The discharge plate 33 moves one pipe downwards, simultaneously working with the inclined plate 24 to block other pipes in the discharge box 23, until the second connecting plate 36 abuts against the bottom of the discharge port 26. At this point, the pipe is stopped. The material sloping plate 35 rolls down to the inclined surface of the right-angled trapezoidal plate 27. After a pipe is processed, the push rod 22 resets, causing the gear 30 to rotate. The threaded rod 28 drives the right-angled trapezoidal plate 27 to move upward, causing the right-angled trapezoidal plate 27 to move the pipe upward to the top of the feeding box 23. After the pipe loses the restriction of the limiting partition 25 and the feeding box 23, it rolls through the angle of the inclined side of the right-angled trapezoidal plate 27 into the feeding frame 14, and then through the angle of the feeding frame 14 into the feeding channel 4. Under the action of the first spring 38, the pressure block 64 drives the unloading plate 33 and the limiting sloping plate 35 to reset, causing a pipe in the feeding box 23 to roll through the inclined plate 24 between the unloading plate 33 and the limiting sloping plate 35, thus realizing the automated transfer of the pipe to the feeding channel 4.

[0101] As an optional embodiment, the lifting assembly 15 includes:

[0102] The first fixing block 39 is fixed to the top of the support frame 12;

[0103] The first mounting bracket 40 is fixed to the top of the first fixing block 39;

[0104] The first dual-axis cylinder 41 is fixed on the top of the first mounting bracket 40, and both telescopic rods of the first dual-axis cylinder 41 pass through the top of the first mounting bracket 40.

[0105] The second mounting plate 42 has its top fixedly connected to the two telescopic rods of the first dual-shaft cylinder 41. The end of the second mounting plate 42 near the first core rod 7 extends vertically downward and is provided with a baffle 43.

[0106] The second slide bar 44 is fixedly mounted on the top of the guide mold 5, and the top of the second slide bar 44 is slidably connected to the bottom of the second mounting plate 42.

[0107] At least one connecting rod 45 is inserted through the baffle 43. One end of the connecting rod 45 is fixedly connected to the guide mold 5, and the other end is fixedly provided with a push block 46. The push block 46 is connected to the rotary assembly 16 in a transmission manner.

[0108] At least one second spring 47 is sleeved on the connecting rod 45, and the two ends of the second spring 47 abut against the push block 46 and the baffle 43 respectively.

[0109] As an optional embodiment, the slewing assembly 16 includes:

[0110] Motor 48 is fixedly mounted on the top of the worktable 11;

[0111] A belt-type synchronous pulley 49, the center of one of its pulleys is fixedly connected to the output shaft of the motor 48;

[0112] The mounting box 50 is fixedly connected to the support frame 12, and the top of the mounting box 50 is provided with a notch 51;

[0113] The toothed roller 52 is disposed inside the mounting box 50. The shafts at both ends of the toothed roller 52 pass through the side of the mounting box 50 and are fixedly connected to the center of the bending mold plate 1 and the center of the belt pulley of the belt synchronous pulley 49 away from the motor 48, respectively.

[0114] The mounting slot 53 is located at the bottom of the first fixing block 39;

[0115] The second rack 54 is slidably connected in the mounting groove 53. One end of the second rack 54 meshes with the toothed roller 52 through the notch 51, and the top of one end of the second rack 54 is provided with a chamfer.

[0116] The push plate 55 has one end fixed to the top of the second rack 54 and the other end in contact with the push block 46.

[0117] Two third connecting plates 56 are respectively disposed on the side of the mounting box 50. One end of each third connecting plate 56 is fixedly connected to the shaft of the toothed roller 52, and the other end is fixedly connected to the first mounting plate 17.

[0118] For example, when one end of the pipe fitting moves into the insert 2, the first dual-axis cylinder 41 drives the second mounting plate 42 to move downward. The second mounting plate 42 drives the second slide bar 44 to move downward, and the second slide bar 44 drives the guide mold 5 to move downward, so that the guide mold 5 clamps one end of the pipe fitting. During processing, the motor 48 drives the toothed roller 52 to rotate through the belt synchronous pulley 49. The toothed roller 52 drives the bending die 1 and the third connecting plate 56 to rotate. The third connecting plate 56 drives the first mounting plate 17 and the pushing member 19 to rotate. The first mounting plate 17 drives the pressing assembly 18 to rotate. The pressing component 18 drives the clamping block 6 to rotate. The clamping block 6 rotates together with the bending die 1 and the insert 2 to bend the pipe. During the rotation, the toothed roller 52 drives the second rack 54 to move. The second rack 54 drives the push plate 55 to move. The push plate 55 drives the push block 46 to move. The push block 46 drives the connecting rod 45 to move. The connecting rod 45 drives the guide die 5 to move to prevent the pipe from being scratched or damaged by stretching during the bending process. When the rotating component 16 is reset, the guide die 5 is reset and abuts against the baffle 43 by the action of the second spring 47.

[0119] As an optional embodiment, the pressing component 18 includes:

[0120] The second fixing block 57 is fixedly mounted on the first mounting plate 17 near the rotary assembly 16. The second fixing block 57 has two parallel connecting arms 58 hinged to the side near the clamping block 6. The other end of each connecting arm 58 is hinged to the clamping block 6.

[0121] The second cylinder 59 is disposed on the top of the second fixing block 57. The second cylinder 59 is fixedly connected to the first mounting plate 17. A slider 60 is hinged on the telescopic rod of the second cylinder 59. The slider 60 is slidably connected to the side of the upper connecting arm 58 away from the lower connecting arm 58.

[0122] For example, the second cylinder 59 drives the slider 60 to move, the slider 60 pushes the connecting arm 58 to move, the connecting arm 58 drives the clamping block 6 to move downward, so that the clamping block 6 moves down to cooperate with the insert 2 to clamp the pipe.

[0123] As an optional embodiment, a second mounting bracket 61 is fixedly provided on the side of the clamping block 6 away from the first mounting plate 17, a second dual-axis cylinder 62 is fixedly provided on the top of the second mounting bracket 61, and a third mounting plate 63 is fixedly provided through the two telescopic rods of the second dual-axis cylinder 62 passing through the top of the second mounting bracket 61. A pressure block 64 is fixedly provided at the bottom of the third mounting plate 63.

[0124] For example, when the pipe is moved to the pipe bending processing area, the third mounting plate 63 is first moved downward by the second dual-axis cylinder 62, and the third mounting plate 63 moves the pressure block 64 downward so that the pressure block 64 clamps the pipe. Then, the second plug 10 of the second mandrel 9 is inserted into one end of the pipe by the pusher 19 to improve the concentricity between the pipe and the second plug 10 and avoid misalignment between the pipe and the second plug 10, so that the second plug 10 will not damage the pipe.

[0125] As an optional embodiment, the pusher 19 includes:

[0126] The fourth mounting plate 65 is disposed on the side of the pressing assembly 18 away from the first mounting plate 17. The fourth mounting plate 65 is fixedly connected to the first mounting plate 17 by bolt structure, and the fourth mounting plate 65 is provided with a limiting groove 66 on the side near the clamping block 6.

[0127] The third mounting bracket 67 has one end fixed to the side of the fourth mounting plate 65 away from the pressing component 18, and the other end fixed to the third cylinder 68. The telescopic rod of the third cylinder 68 passes through the third mounting bracket 67 and is fixedly connected to the second core rod 9.

[0128] For example, by setting a fourth mounting plate 65 and setting a limiting groove 66 on the fourth mounting plate 65, the clamping block 6 and the limiting groove 66 cooperate to make the pressure block 64 aligned with the pipe fitting, preventing the pressure block 64 from not pressing the pipe fitting tightly, thereby affecting the third cylinder 68 driving the second core rod 9 to insert the second plug 10 into one end of the pipe fitting.

[0129] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A pipe bending device, comprising a pipe bending mold, characterized in that, The pipe bending mold includes a pipe bending mold plate, and an insert is provided on its outer wall along the tangential direction; The anti-wrinkle block has a feeding channel fixed at one end and is tangent to the outer wall of the bending die at the other end, and the top of the anti-wrinkle block is flush with the top of the insert. A guide mold is disposed on top of the anti-wrinkle block; A clamping block is positioned on top of the insert; A first core rod is disposed in the feeding channel, and a first plug is fixedly provided at one end of the first core rod near the bending die plate. The second core rod is located at a position on the insert away from the anti-wrinkle block. A second plug is fixed at one end of the second core rod near the bending mold plate. The second core rod is coaxial with the first core rod when the anti-wrinkle block and the insert are flush. It also includes a worktable, a support frame fixedly mounted on the top of the worktable, a feeding channel fixedly connected to the top of the support frame, a pushing assembly fixedly mounted on the top of the worktable, the pushing assembly being kinetically connected to the end of the first mandrel away from the anti-wrinkle block, a feeding assembly fixedly mounted on the side of the worktable, a feeding frame connected to the side of the feeding channel, the end of the feeding frame away from the feeding channel being inclined upwards and connected to the feeding assembly, the pushing assembly being kinetically connected to the feeding assembly, a lifting assembly mounted on the top of the support frame, the lifting assembly being kinetically connected to the top of the guide mold, and the bending mold. A rotary assembly is provided on the side of the platen, which is drivenly connected to the bending die platen. The rotary assembly is fixedly connected to one side of the support frame. A first mounting plate is drivenly connected to the rotary assembly. A pressing assembly is installed on the side of the first mounting plate away from the support frame. The pressing assembly is drivenly connected to the top of the clamping block. A pushing member is installed on the first mounting plate, which is drivenly connected to the second mandrel. A collection box is provided at the bottom of the bending die platen. The rotary assembly is drivenly connected to the lifting assembly, so that during the bending operation, the guide mold moves with the pipe while pressing one end of the pipe. The feeding assembly includes: The first cylinder is fixedly mounted on the top of the worktable; The push rod has one end fixedly connected to the telescopic rod of the first cylinder, and the other end fixedly connected to the end of the first core rod away from the first plug; The feeding assembly includes: The material feeding box is fixed to the side of the workbench; An inclined plate is disposed inside the feeding box, one end of which is fixedly connected to an inner wall of the feeding box away from the workbench, and the other end is inclined downward. A limiting partition is vertically fixed inside the feeding box, and a discharge port is provided on the limiting partition near the bottom; A right-angled trapezoidal plate, one of its straight edges is attached to one side of the limiting partition, and the other straight edge is attached to an inner wall of the feeding box near the workbench; A quantitative dispensing component is disposed between the inclined plate and the limiting partition, and the quantitative dispensing component is connected to the bottom of the right-angled trapezoidal plate via a transmission connection; A threaded rod is inserted through the bottom of the feeding box, and one end of the threaded rod is fixedly connected to the bottom of the right-angled trapezoidal plate; A bearing housing is provided at the bottom of the feeding box. One end of the bearing housing is fixedly connected to the workbench, and the other end is rotatably connected to a gear. The gear is sleeved on the threaded rod, and the threaded rod is threadedly connected to the gear. A first rack is slidably connected to one side of the worktable, and the first rack meshes with the gear; The first connecting plate has one end fixedly connected to the push rod and the other end fixedly connected to one end of the first rack. The quantitative dispensing component includes: The feeding plate is fitted to the side of the limiting partition away from the right-angled trapezoidal plate. Each side of the feeding plate is fixed with a first sliding strip, and each first sliding strip is slidably connected to the inner wall of the feeding box. A limiting inclined plate is disposed at the bottom of the feeding plate. There is a gap between the limiting inclined plate and the feeding plate for placing a pipe fitting. The sides of the limiting inclined plate are fixedly connected to the first sliding strip. The limiting inclined plate and the inclined plate have the same inclination angle. The second connecting plate is disposed inside the discharge port. One end of the second connecting plate is fixedly connected to the limiting inclined plate, and the other end is provided with at least one pressure plate in a vertical state. The pressure plate is located at the bottom of the right-angled trapezoidal plate. At least one first spring is disposed on the inner bottom of the feeding box, with the two ends of the first spring abutting against the inner bottom of the feeding box and the bottom of the pressure plate, respectively.

2. The pipe bending device according to claim 1, characterized in that, The lifting assembly includes: The first fixing block is fixed to the top of the support frame; The first mounting bracket is fixed to the top of the first fixing block; The first dual-axis cylinder is fixed on the top of the first mounting bracket, and both telescopic rods of the first dual-axis cylinder pass through the top of the first mounting bracket. The top of the second mounting plate is fixedly connected to the two telescopic rods of the first dual-shaft cylinder. The end of the second mounting plate near the first mandrel extends downward vertically and is provided with a baffle. The second slide bar is fixedly mounted on the top of the guide mold, and the top of the second slide bar is slidably connected to the bottom of the second mounting plate; At least one connecting rod is inserted through the baffle, one end of the connecting rod is fixedly connected to the guide mold, and the other end is fixedly provided with a push block, and the push block is drivenly connected to the rotary assembly; At least one second spring is sleeved on the connecting rod, with its two ends abutting against the push block and the baffle, respectively.

3. The pipe bending device according to claim 2, characterized in that, The rotary assembly includes: The motor is fixed to the top of the worktable; A belt-type synchronous pulley, the center of which is fixedly connected to the output shaft of the motor; The mounting box is fixedly connected to the support frame, and the top of the mounting box has a notch; The toothed roller is located inside the mounting box. The shafts at both ends of the toothed roller pass through the side of the mounting box and are fixedly connected to the center of the bending die and the center of the belt pulley away from the motor, respectively. The mounting slot is located at the bottom of the first fixing block; The second rack is slidably connected in the mounting groove. One end of the second rack meshes with the toothed roller through a notch, and the top of one end of the second rack is chamfered. The push plate has one end fixed to the top of the second rack and the other end in contact with the push block; Two third connecting plates are respectively disposed on the side of the mounting box. One end of each third connecting plate is fixedly connected to the shaft of the toothed roller, and the other end is fixedly connected to the first mounting plate.

4. A pipe bending device according to claim 1, characterized in that, The pressing component includes: The second fixing block is fixed to the first mounting plate near the rotary assembly. Two parallel connecting arms are hinged to the side of the second fixing block near the clamping block, and the other end of each connecting arm is hinged to the clamping block. The second cylinder is located on top of the second fixed block and is fixedly connected to the first mounting plate. A slider is hinged to the telescopic rod of the second cylinder, and the slider is slidably connected to the side of the upper connecting arm away from the lower connecting arm.

5. A pipe bending device according to claim 1, characterized in that, A second mounting bracket is fixed to the side of the clamping block away from the first mounting plate. A second dual-axis cylinder is fixed to the top of the second mounting bracket. A third mounting plate is fixed to the two telescopic rods of the second dual-axis cylinder passing through the top of the second mounting bracket. A pressure block is fixed to the bottom of the third mounting plate.

6. A pipe bending device according to claim 1, characterized in that, The pushing component includes: A fourth mounting plate is disposed on the side of the pressing assembly away from the first mounting plate. The fourth mounting plate is fixedly connected to the first mounting plate by a bolt structure, and a limiting groove is provided on the side of the fourth mounting plate near the clamping block. The third mounting bracket has one end fixed to the side of the fourth mounting plate away from the pressing component, and the other end fixed with a third cylinder. The telescopic rod of the third cylinder passes through the third mounting bracket and is fixedly connected to the second mandrel.

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