A guide stable type stamping die

By designing a guide-stabilized stamping die, simultaneous bending of both ends of the pipe fitting is achieved, solving the problem of limited efficiency in existing technologies, improving production efficiency and convenience, and overcoming the shortcomings of existing equipment.

CN120644569BActive Publication Date: 2026-03-27江苏齐力健康科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to improve the processing efficiency of pipe fittings that require bending at both ends. The speed of stamping dies is limited, bending machines cannot bend both ends at the same time, and sand injection operations affect efficiency and the environment.

Method used

Design a guide-stabilized stamping die, which uses a pushing mechanism and a displacement mechanism to control the die table and bending mechanism. The bending arm bends both ends of the tube at the same time, and uses steel cables and spreading balls to provide support to avoid deformation and damage. It automatically detaches from the tube for easy unloading.

Benefits of technology

It significantly improves production efficiency, avoids deformation and damage of pipe fittings, solves the problem of limited efficiency in existing technologies, and is at least twice as efficient as traditional stamping dies and bending machines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of pipe bending, in particular to a guide stable stamping die, which comprises a workbench, a pushing mechanism is arranged on the workbench, a die table is arranged at the pushing end of the pushing mechanism, two displacement mechanisms are symmetrically arranged on the workbench, and a bending mechanism is rotationally arranged at the displacement end of the displacement mechanism; an upper die groove and a side die groove are arranged on the die table, the side die grooves are symmetrically arranged on the two sides of the die table, and the side die grooves are arc-shaped; the bending mechanism comprises a bending arm rotationally arranged at the displacement end of the displacement mechanism and a supporting end arranged at the end of the bending arm; the two ends of the pipe fitting are bent by the bending arm, the production efficiency can be greatly improved, and the supporting end of the bending arm and the end can effectively support the stressed part during the bending process, so that the deformation and damage of the pipe fitting during the bending process are avoided.
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Description

Technical Field

[0001] This invention relates to the field of pipe bending technology, and in particular to a guiding and stabilizing stamping die. Background Technology

[0002] When bending pipes, the equipment usually used is a bending machine, or a stamping die is used to stamp the pipe to achieve the bending operation.

[0003] For stamping dies, since the inside of the pipe is hollow, in order to avoid damage to the pipe during bending and to prevent the pipe from breaking and deforming, it is generally necessary to control the stamping speed and buffer the pressure process to ensure the forming effect of the pipe. Therefore, stamping dies cannot perform efficient bending operations.

[0004] For a bending machine, its single bending speed is significantly greater than that of a stamping die. This is because during the bending process, a support component can be inserted into the pipe to assist in the bending and prevent the pipe from deforming due to the increase in bending speed. However, this bending method with an internal support structure can only bend one end of the pipe at a time, thus limiting the bending efficiency of the bending machine.

[0005] In addition, although some processes use stamping dies for bending, sand can be injected into the pipe to increase the stamping speed while avoiding deformation and damage to the pipe, the sand injection operation will affect the bending efficiency, and the particles will also affect the working environment. Adhering to the die will also affect the appearance quality of the product.

[0006] When processing pipe fittings that require bending at both ends, the processing efficiency of the two bending devices mentioned above is limited by the factors mentioned above. Therefore, a guide-stabilized stamping die is proposed. Summary of the Invention

[0007] In view of the problem that it is difficult to improve the processing efficiency when processing pipe fittings that require bending at both ends in the above or existing technologies, the present invention is proposed.

[0008] Therefore, the object of the present invention is to provide a guide-stabilizing stamping die.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a guide-stabilized stamping die, including a worktable, a pushing mechanism on the worktable, a die table at the pushing end of the pushing mechanism, two symmetrically arranged displacement mechanisms on the worktable, and a bending mechanism rotatably provided at the displacement end of the displacement mechanism; the die table is provided with an upper die groove and a side die groove, the side die grooves are symmetrically arranged on both sides of the die table, and the side die grooves are arc-shaped; the bending mechanism includes a bending arm rotatably provided at the displacement end of the displacement mechanism, and a support end provided at the end of the bending arm; the bending arm is inserted into both ends of the object to be bent, and the pushing mechanism pushes the die table to move and abut against the middle of the object to be bent, thereby completing the bending operation.

[0010] As a preferred embodiment of the guide-stabilized stamping die of the present invention, wherein: the end of the support end is provided with a steel cable, and a plurality of spreading balls are evenly provided on the steel cable.

[0011] As a preferred embodiment of the guide-stabilizing stamping die of the present invention, the diameter of the plurality of the spreading balls gradually decreases from the end away from the support end to the end closer to the support end.

[0012] As a preferred embodiment of the guide-stabilized stamping die of the present invention, the steel cable is provided with a plurality of evenly distributed support balls, and the support balls and the spreading balls are distributed at intervals.

[0013] As a preferred embodiment of the guide-stabilized stamping die of the present invention, the bending arm includes a swing seat rotatably disposed at the displacement end of the displacement mechanism, and a stud disposed on the swing seat. The outer wall of the stud is threadedly connected with a threaded sleeve, and the arm also includes a bending rod disposed at the end of the stud. The support end is disposed at the end of the bending rod.

[0014] As a preferred embodiment of the guide-stabilized stamping die of the present invention, it further includes a positioning mechanism disposed on the die table; the positioning mechanism includes a telescopic member disposed on the die table and a fixing part disposed on the telescopic end of the telescopic member, the fixing part being provided with an upper die; the upper die being provided with a lower die groove.

[0015] As a preferred embodiment of the guide-stabilized stamping die of the present invention, it further includes: a stripper block rotatably disposed on the die table; a rotating arm is provided on the stripper block, the rotation axis of the rotating arm coincides with the arc center of the side die groove; and a receiving groove is provided on the stripper block.

[0016] As a preferred embodiment of the guide-stabilized stamping die of the present invention, the die platform is provided with a blocking block; a tension spring is connected between the rotating arm and the blocking block.

[0017] As a preferred embodiment of the guide-stabilized stamping die of the present invention, it further includes a blocking frame rotatably mounted on the die table, the blocking frame being used to limit the deflectable angle of the stripper block; the blocking frame is provided with a locking bolt, the locking bolt being threadedly connected to the die table.

[0018] As a preferred embodiment of the guide-stabilized stamping die of the present invention, the pushing mechanism includes a fixed frame disposed on the worktable and a hydraulic cylinder disposed on the fixed frame, wherein the telescopic end of the hydraulic cylinder is provided with a pushing frame.

[0019] The beneficial effects of the guide-stabilizing stamping die of the present invention are as follows: The present invention can significantly improve production efficiency by simultaneously bending both ends of the tube using a bending arm. During the bending process, the bending arm and its supporting end can effectively support the stressed parts, preventing deformation and damage to the tube during bending. In addition, after the tube is bent, the bending arm automatically disengages from the tube, facilitating unloading of the bent tube, further improving production efficiency and convenience. The efficiency is significantly improved compared to traditional stamping dies. Furthermore, for bending machines with supporting components, the efficiency of the present invention is at least twice that of the present invention, and it overcomes the problem in the prior art that bending machines with supporting capabilities cannot simultaneously bend both ends of the tube, and also solves the unloading problem. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the overall structure of a guide-stabilized stamping die.

[0022] Figure 2 A schematic diagram of the push mechanism for guiding and stabilizing stamping dies.

[0023] Figure 3 A schematic diagram of the structure of a guide-stabilized stamping die with the upper die and die table in a fitted state.

[0024] Figure 4 A schematic diagram of the structure of a guide-stabilized stamping die in the separated state of the upper die and the die table.

[0025] Figure 5 A schematic diagram of the structure of the die table, upper die groove, and side die groove of a guide-stabilized stamping die.

[0026] Figure 6 A schematic diagram of the bending arm for guiding and stabilizing stamping dies.

[0027] Figure 7 A schematic diagram of the bending process of a guide-stabilized stamping die.

[0028] In the diagram: 1. Workbench; 11. Outer guide sleeve; 12. Inner guide sleeve; 2. Pushing mechanism; 21. Fixed frame; 22. Hydraulic cylinder; 23. Pushing frame; 231. Inner guide rod; 3. Mold table; 31. Upper mold slot; 32. Side mold slot; 33. Blocking block; 34. Fixed base; 341. Long guide rod; 342. Short guide rod; 4. Displacement mechanism; 5. Bending mechanism; 51. Bending arm; 511. Swing 512. Moving base; 513. Stud; 514. Screw sleeve; 515. Bending rod; 52. Support end; 53. Steel cable; 54. Spreading ball; 55. Support ball; 6. Positioning mechanism; 61. Telescopic component; 62. Fixed part; 63. Upper mold; 631. Lower mold groove; 632. Limiting sleeve; 7. Stripping block; 71. Rotating arm; 72. Receiving groove; 73. Tension spring; 8. Blocking frame; 81. Locking bolt. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1, referring to Figures 1 to 7This is the first embodiment of the present invention. This embodiment provides a guide-stabilized stamping die, including a worktable 1. A pushing mechanism 2 is provided on the worktable 1. A die table 3 is provided at the pushing end of the pushing mechanism 2. Two symmetrically arranged displacement mechanisms 4 are provided on the worktable 1. A bending mechanism 5 is rotatably provided at the displacement end of the displacement mechanism 4. The pushing mechanism 2 can push the die table 3 to move on the worktable 1. The displacement mechanism 4 is fixedly provided on the worktable 1. The two symmetrically arranged displacement mechanisms 4 can synchronously control the movement of the two bending mechanisms 5. For example, the two bending mechanisms 5 can be simultaneously controlled to move closer or further apart by the displacement mechanism 4.

[0033] The mold platform 3 is provided with an upper mold groove 31 and a side mold groove 32. The side mold groove 32 is symmetrically arranged on both sides of the mold platform 3 and is arc-shaped. The upper mold groove 31 and the side mold groove 32 are interconnected.

[0034] The bending mechanism 5 includes a bending arm 51 rotatably disposed at the displacement end of the displacement mechanism 4, and a support end 52 disposed at the end of the bending arm 51; the support end 52 has a hemispherical structure and its volume is greater than half of the entire sphere.

[0035] The bending arm 51 is inserted into both ends of the object to be bent. The pushing mechanism 2 pushes the mold table 3 to move and contact the middle of the object to be bent, thus completing the bending operation.

[0036] In use, the pipe to be processed is placed in the upper mold groove 31, and the outer diameter of the pipe is matched with the inner diameter of the upper mold groove 31. The position of the mold table 3 can be controlled by the pushing mechanism 2 so that the upper mold groove 31 and the bending arm 51 can be on the same straight line. The displacement mechanism 4 makes the two bending arms 51 move away from each other, which increases the distance between the two support ends 52, so that the pipe can be placed in the upper mold groove 31 of the mold table 3. After the pipe is placed, the displacement mechanism 4 controls the displacement of the two bending arms 51 to insert the support end 52 into the pipe.

[0037] It should be noted that the displacement mechanism 4 can be a lead screw and slider mechanism, and the pushing mechanism 2 can be a hydraulic telescopic structure or a pneumatic telescopic structure.

[0038] Among them, reference Figure 7 After the support end 52 is inserted into the pipe fitting, the support end 52 should be located to the right of the arc center of the side mold groove 32. Furthermore, it must be ensured that during the process of the mold table 3 pushing the pipe fitting, the support end 52 remains to the right of the tangent point formed by the bending arm 51 and the side mold groove 32. The specific bending process can be found in [reference needed]. Figure 7As shown, after the support end 52 is inserted into the pipe, the pushing mechanism 2 pushes the mold table 3 upward. During the upward movement, since both sides of the pipe are inserted by the bending arms 51, the mold table 3 lifts the middle of the pipe. Therefore, there is no need for clamps to fix the pipe, and the stability of the pipe can be ensured during the lifting process. Due to the lifting of the mold table 3, and the bending arms 51 being in a straight state, the bending arms 51 will deflect. The support end 52 will abut against the inner wall of the pipe, and the connection between the side mold groove 32 and the upper mold groove 31 will abut against the inner wall of the pipe, applying force to the pipe so that the pipe moves with the mold table 3. The bending is formed by the rise of the mold table 3. The arc-shaped structure of the side mold groove 32 is used to guide the forming of the bending part of the pipe. As the mold table 3 rises, the bending arm 51 is inserted into the end of the pipe. Therefore, the part where the pipe and the bending arm 51 are connected will always be tangent to the arc of the side mold groove 32. The support end 52 can provide a certain support for the bending part to avoid breakage during the bending process. As the mold table 3 rises, the bending arm 51 will gradually be pulled out from the pipe until it is detached. When the bending arm 51 is detached from the pipe, the operation of bending both ends of the pipe at the same time is completed.

[0039] In summary, by simultaneously bending both ends of the pipe fitting with the bending arm 51, production efficiency can be significantly improved. During the bending process, the bending arm 51 and its supporting end 52 can effectively support the stressed parts, preventing deformation and damage to the pipe fitting during bending. Furthermore, after the pipe fitting is bent, the bending arm 51 automatically disengages from the pipe fitting, facilitating unloading. This further improves production efficiency and convenience. The efficiency is significantly improved compared to traditional stamping dies. Moreover, for bending machines with supporting components, the efficiency of this invention is at least twice that of the traditional method. It also overcomes the problem in the prior art that bending machines with supporting capabilities cannot simultaneously bend both ends of the pipe fitting, and solves the unloading problem.

[0040] Preferably, the end of the support end 52 is provided with a steel cable 53, and a plurality of spreading balls 54 are evenly provided on the steel cable 53. Further, the diameter of the plurality of spreading balls 54 gradually decreases from the end away from the support end 52 to the end closer to the support end 52.

[0041] Preferably, the steel cable 53 is provided with several evenly distributed support balls 55, and the support balls 55 and the spreading balls 54 are distributed in an alternating manner.

[0042] In use, the diameter of the support ball 55 is significantly smaller than that of the expansion ball 54. The support ball 55 prevents excessive deformation of the pipe fitting due to excessive force when bending at high speeds. The support ball 55 helps prevent damage and breakage. Furthermore, the support ball 55 allows for gradual shape correction of the inner wall of the bent pipe fitting. For details, please refer to... Figure 7The working process shown is as follows: at the beginning of bending, the support ball 55 and the expansion ball 54 connected by the steel cable 53 can prevent excessive deformation at the bending stress point. After the pipe is bent, its cross-section will deform to a certain extent and tend to be elliptical. During the process of the mold table 3 rising, the expansion ball 54 is gradually pulled out from the bending part of the pipe. The expansion ball 54 can correct the formation of the pipe cross-section. In addition, due to the expansion force applied by the expansion ball 54 to the inner wall of the pipe, the stress generated during bending can be eliminated during the shaping process of the pipe, and the shaping effect after bending is improved. The diameter of the expansion ball 54 can be set so that the pipe is gradually shaped as the bending arm 51 is pulled out. When the mold table 3 moves to the point that the bending arm 51 is separated from the pipe, the displacement mechanism 4 can be used to assist in pulling the expansion ball 54 out of the pipe in conjunction with the rise of the mold table 3.

[0043] In addition, by adjusting the insertion depth of the bending arm 51 before bending the pipe fitting through the displacement mechanism 4, the time it takes for the bending arm 51 to separate from the pipe fitting can be changed, thereby controlling the bending angle.

[0044] Example 2, refer to Figures 1-7 This is the second embodiment of the present invention. Unlike the previous embodiment, the bending arm 51 includes a swing seat 511 rotatably disposed at the displacement end of the displacement mechanism 4, and a stud 512 disposed on the swing seat 511. The outer wall of the stud 512 is threadedly connected to a threaded sleeve 513. The stud 512 also includes a bending rod 514 disposed at the end of the stud 512. The diameter of the bending rod 514 is slightly smaller than the diameter of the pipe being bent, which can reduce the degree of deformation of the pipe during the bending process. The position of the threaded sleeve 513 outside the stud 512 can be adjusted by rotating the threaded sleeve 513.

[0045] It should be noted that the support end 52 is located at the end of the bent rod 514.

[0046] By synchronously adjusting the position of the threaded sleeve 513 in the bending arms 51 on both sides, the maximum depth to which the bending arms 51 can be inserted into the pipe can be adjusted, making it suitable for pipes of different lengths. In addition, by controlling the insertion depth of the bending arms 51, the bending angle can also be controlled. This is because after the insertion depth of the bending arms 51 changes, the separation time between the bending arms 51 and the pipe during the bending process will change, thereby controlling the bending angle.

[0047] In use, due to the setting of the threaded sleeve 513, when feeding the pipe fitting before bending, the two bending arms 51 can be moved away from each other by the displacement mechanism 4. Then, the pipe fitting is first placed on the outside of one bending arm 51, and then the other end of the pipe fitting is also placed on the outside of the other bending arm 51 by sliding the pipe fitting. Figure 7To illustrate with an example, after the two bending arms 51 move away from each other, the pipe fitting is first placed on the left bending arm 51, so that the left threaded sleeve 513 and the end of the pipe fitting come into contact. Then, the right side of the pipe fitting and the end of the right bending arm 51 are aligned. By sliding the pipe fitting, part of the pipe fitting is placed on the right bending arm 51, and the pipe fitting no longer comes into contact with the left threaded sleeve 513. The pipe fitting is placed on both bending arms 51 at the same time. At this time, the displacement mechanism 4 is controlled to move the two bending arms 51 closer to each other until the threaded sleeves 513 on both bending arms 51 come into contact with both ends of the pipe fitting, thus completing the loading of the pipe fitting. The setting of the threaded sleeve 513 can automatically realize the centering operation of the pipe fitting to ensure the accuracy of the bending position.

[0048] Compared to the method described in Embodiment 1, which adjusts the insertion depth of the bending arm 51 before bending the pipe fitting by means of the displacement mechanism 4 to control the bending angle, this embodiment proposes to control the bending angle by controlling the position of the threaded sleeve 513 and changing the maximum insertion depth of the bending arm 51. This method can ensure the accuracy of the bending position while controlling the bending angle, and the threaded sleeve 513 can effectively position the pipe fitting.

[0049] Specifically, it also includes a positioning mechanism 6 on the mold table 3; the positioning mechanism 6 includes a telescopic member 61 on the mold table 3 and a fixing part 62 on the telescopic end of the telescopic member 61, the fixing part 62 is provided with an upper mold 63; the upper mold 63 is provided with a lower mold groove 631.

[0050] In this embodiment, the telescopic component 61 can be a cylinder or an electric telescopic rod. The telescopic component 61 controls the fit between the upper mold 63 and the mold table 3. Together with the lower mold groove 631, it can position the middle part of the pipe, further improving the positioning effect of the pipe during the bending process and avoiding inaccurate bending position caused by the force deviation at both ends of the pipe during bending.

[0051] Furthermore, it also includes a stripping block 7 rotatably mounted on the mold table 3; the stripping block 7 is provided with a rotating arm 71, the rotation axis of the rotating arm 71 coincides with the arc center of the side mold groove 32; the stripping block 7 is provided with a receiving groove 72, the shape of the receiving groove 72 fits the outer wall of the pipe.

[0052] The mold table 3 is equipped with a blocking block 33; a tension spring 73 connects the rotating arm 71 and the blocking block 33, as shown in the figure. Figure 4 The blocking block 33 can limit the maximum deflection angle of the rotating arm 71, and the tension provided by the tension spring 73 can make the rotating arm 71 have a tendency to move in accordance with the blocking block 33.

[0053] It should be noted that, referring to Figure 7During the bending process of the pipe fitting, the bending of the pipe fitting and the tilting of the bending arm 51 will both apply force to the stripping block 7, causing the stripping block 7 to rotate accordingly. After the bending operation of the pipe fitting is completed, the bending mechanism 5 is completely pulled out from the end of the pipe fitting through the displacement mechanism 4. Under the tension of the tension spring 73, the stripping block 7 can push the pipe fitting upward. Therefore, after the telescopic part 61 is extended, the upper mold 63 and the mold table 3 are separated, and the bent pipe fitting can be lifted, which is convenient for the product to be removed after bending.

[0054] It also includes a rotatable blocking frame 8 mounted on the mold table 3. The blocking frame 8 is used to limit the deflection angle of the stripper block 7. The blocking frame 8 is provided with a locking bolt 81, which is threadedly connected to the mold table 3. By rotating the locking bolt 81, the locking force applied to the blocking frame 8 can be adjusted. In use, the locking bolt 81 can be loosened first, and then the blocking frame 8 can be rotated to adjust the position of the blocking frame 8.

[0055] The rest of the structure is the same as in Example 1.

[0056] When using, refer to Figure 7 By adjusting the position of the blocking frame 8 to limit the maximum deflection angle of the stripper block 7, during the pipe bending process, after the bending arm 51 detaches from the end of the pipe, since the steel cable 53 and the upper-connected spreading ball 54 and support ball 55 are still inside the pipe, it is necessary to control the mold table 3 to rise and simultaneously control the displacement mechanism 4 to move, so that the bending arms 51 on both sides move away from each other, thereby pulling out the spreading ball 54 and support ball 55. During this process, if the movement of the mold table 3 and the movement of the displacement mechanism 4 can achieve good results... If the synchronization is achieved, the shape of the pipe fitting will not be affected. With the blocking frame 8 limiting the maximum deflection angle of the stripper block 7, during the process of controlling the rise of the mold table 3 and the displacement mechanism 4, the stripper block 7, together with the receiving groove 72, can also provide support and limit the end of the pipe fitting. This is to prevent the spreading ball 54 from excessively pulling on the end of the pipe fitting when it is released, and the pulling force is not parallel to the bent end of the pipe fitting, causing the pipe fitting to bend excessively. Therefore, it can effectively reduce the difficulty of controlling the displacement mechanism 4 to perform corresponding displacement while the mold table 3 rises.

[0057] Example 3, referring to Figures 1-7 This is the third embodiment of the present invention. Unlike the previous embodiment, the pushing mechanism 2 includes a fixed frame 21 on the workbench 1 and a hydraulic cylinder 22 on the fixed frame 21. The telescopic end of the hydraulic cylinder 22 is provided with a pushing frame 23.

[0058] Specifically, the fixed frame 21 is fixedly mounted on the workbench 1, and the extension and retraction of the hydraulic cylinder 22 enables the push frame 23 to slide.

[0059] Furthermore, an inner guide rod 231 is provided through the push frame 23, and an inner guide sleeve 12 is fixedly provided on the worktable 1. The inner guide sleeve 12 and the inner guide rod 231 are slidably connected. The cooperation between the inner guide sleeve 12 and the inner guide rod 231 can increase the stability of the mold table 3 and provide good guiding ability.

[0060] The workbench 1 is fixedly provided with an outer guide sleeve 11, the mold table 3 is fixedly provided with a fixed seat 34, the two ends of the fixed seat 34 are respectively fixed with a long guide rod 341 and a short guide rod 342, the long guide rod 341 and the outer guide sleeve 11 are slidably connected, and the upper mold 63 is fixedly provided with a limiting sleeve 632, the limiting sleeve 632 and the short guide rod 342 are slidably connected.

[0061] The use of limit sleeve 632 and short guide rod 342 can increase the stability between mold table 3 and upper mold 63 and improve guiding ability.

[0062] The stability of the mold table 3 during movement can be increased by using the long guide rod 341 and the outer guide sleeve 11, thereby improving the guiding ability of the mold table 3.

[0063] The rest of the structure is the same as in Example 2.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A guide-stable type press die characterized by comprising: Including workbench (1), the workbench (1) is equipped with push mechanism (2), the push end of push mechanism (2) is equipped with mould base (3), the workbench (1) is equipped with two displacement mechanism (4) that is symmetrically arranged, the displacement end of displacement mechanism (4) is rotationally equipped with bending mechanism (5); The mould base (3) is equipped with upper die groove (31) and side die groove (32), the side die groove (32) is symmetrically arranged on the both sides of mould base (3), and the side die groove (32) is arc-shaped; The bending mechanism (5) includes a bending arm (51) rotationally arranged on the displacement end of the displacement mechanism (4), and a support end (52) arranged on the end of the bending arm (51); Insert the bending arm (51) into the both ends of the object to be bent, push the mould base (3) by the push mechanism (2) to displace and abut the middle part of the object to be bent, and complete the bending operation; The end of the support end (52) is provided with a steel cable (53), and a plurality of opening balls (54) are uniformly arranged on the steel cable (53); The diameters of the plurality of opening balls (54) gradually decrease from one end away from the support end (52) to one end close to the support end (52); A plurality of support balls (55) are uniformly distributed on the steel cable (53), and the support balls (55) and the opening balls (54) are spaced apart; The bending arm (51) includes a swing seat (511) rotationally arranged on the displacement end of the displacement mechanism (4), and a stud (512) arranged on the swing seat (511), the outer wall of the stud (512) is threadedly connected with a sleeve (513), and further includes a bending rod (514) arranged on the end of the stud (512); The support end (52) is arranged on the end of the bending rod (514); Further including a positioning mechanism (6) arranged on the mould base (3); The positioning mechanism (6) includes a telescopic member (61) arranged on the mould base (3), and a fixing part (62) arranged on the telescopic end of the telescopic member (61), and the fixing part (62) is provided with an upper die (63); The upper die (63) is provided with a lower die groove (631); Further including a stripping block (7) rotationally arranged on the mould base (3); The stripping block (7) is provided with a rotating arm (71), and the rotating axis of the rotating arm (71) coincides with the arc center of the side die groove (32); The stripping block (7) is provided with a receiving groove (72).

2. The guide-securing type press mold according to claim 1, wherein: The mould base (3) is provided with a blocking block (33); The rotating arm (71) and the blocking block (33) are connected with a tension spring (73).

3. The guide-securing type press mold according to claim 2, wherein: Further including a blocking frame (8) rotationally arranged on the mould base (3), the blocking frame (8) is used for limiting the deflectable angle of the stripping block (7); The blocking frame (8) is provided with a locking bolt (81), and the locking bolt (81) is threadedly connected with the mould base (3).

4. The guide-securing type press mold according to claim 3, wherein: The pushing mechanism (2) comprises a fixing frame (21) arranged on the workbench (1) and a hydraulic oil cylinder (22) arranged on the fixing frame (21), and the telescopic end of the hydraulic oil cylinder (22) is provided with a pushing frame (23).

Citation Information

Patent Citations

  • Automatic bending equipment for machining carbon steel clamping and pressing type bent pipe and using method of automatic bending equipment

    CN117983706A

  • Bending equipment for pipeline production

    CN119588794A