A unidirectional and bidirectional extrusion precision forming processing system and method for a three-pronged universal joint fork

Abstract

The present invention discloses a system and method for unidirectional and bidirectional extrusion precision forming of a three-pronged universal joint fork, comprising a mounting base, the four corners of the bottom of the mounting base are fixedly connected with support legs, the two sides of the top of the mounting base are fixedly connected with mounting vertical plates, one side of the mounting vertical plate is provided with a telescopic rod, the output end of the telescopic rod is fixedly connected with a bearing plate, one side of the bearing plate is fixedly connected with a first forming die, and the present invention relates to the technical field of three-pronged universal joint fork processing. The system and method for unidirectional and bidirectional extrusion precision forming of a three-pronged universal joint fork, through the setting of a check mechanism, after the first forming die cooperates with the second forming die to extrude the blank, when it is separated from the blank, the check mechanism can limit the second forming die, thereby fixing and limiting the blank and avoiding displacement of the blank, which not only reduces the difficulty of subsequent processing, but also effectively improves the precision and quality of the three-pronged universal joint fork finished product.

Description

Technical Field

[0001] The invention relates to the technical field of three-pronged universal joint fork processing, and in particular to a single- and double-direction extrusion precision forming processing system and method for a three-pronged universal joint fork. Background Art

[0002] At present, most of the commonly used spherical shaft three-pronged universal joints and cylindrical shaft three-pronged universal joints are formed by hot die forging technology. The hot forgings have low processing accuracy, and there are flash or burrs on the die line of the forgings. The surface is rough due to oxidation. During the forming process, the metal streamlines are unevenly distributed or turbulence and reflux occur, resulting in high production costs.

[0003] With the development of the machinery industry and the increasingly fierce international competition, higher requirements are put forward for the improvement of mechanical properties of universal joint products and the reduction of processing and manufacturing costs, especially for processing quality. The existing extrusion forming equipment lacks the fixation and limit of the blank during the extrusion process of the three-pronged universal joint fork, resulting in low blank processing accuracy, which not only increases the difficulty of subsequent processing and reduces processing efficiency, but also affects the accuracy and quality of the three-pronged universal joint fork finished product. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a unidirectional and bidirectional extrusion precision forming processing system and method for a three-pronged universal joint fork, which solves the problem that during the extrusion processing of the three-pronged universal joint fork by the existing extrusion forming equipment, there is a lack of fixation and limitation of the blank, resulting in low blank processing accuracy, which not only increases the subsequent processing difficulty and reduces the processing efficiency, but also affects the accuracy and quality of the three-pronged universal joint fork finished product.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A single- and double-direction extrusion precision forming processing system for a three-pronged universal joint fork, comprising a mounting base, wherein the four corners of the bottom of the mounting base are fixedly connected with support legs, the two sides of the top of the mounting base are fixedly connected with mounting vertical plates, a telescopic rod is arranged on one side of the mounting vertical plate, the output end of the telescopic rod is fixedly connected with a bearing plate, a first forming die is fixedly connected to one side of the bearing plate, a first linkage plate is fixedly connected to one side of the bearing plate and located on both sides of the first forming die, two second forming dies adapted to the first forming die are slidably connected to one side of the mounting vertical plate, the two second forming dies are slidably connected to the mounting vertical plate, the two second forming dies are respectively located on both sides of the first forming die, and the two second forming dies are fixedly connected to the second linkage plate adapted to the first linkage plate on one side of the second forming dies close to the first linkage plate, a non-return mechanism is arranged between the mounting base, the mounting vertical plate and the second linkage plate, a limiting mechanism is arranged on the top of the mounting base and located between the first forming die and the two second forming dies, and the limiting mechanism passes through the mounting base and extends to the bottom of the mounting base.

[0008] Preferably, the non-return mechanism includes an installation box, which is fixedly connected to one side of the installation vertical plate, a installation shaft is provided on the top of the installation box, the installation shaft passes through the installation box and is rotatably connected to the installation box, a non-return assembly is provided between the installation shaft and the installation box, the bottom end of the installation shaft is rotatably connected to the top of the installation base, the surface of the installation shaft is fixedly connected to a limit gear, and one side of the second linkage plate is fixedly connected to a rack plate adapted to the limit gear.

[0009] Preferably, the anti-return assembly includes a ratchet, which is located inside the mounting box and fixedly connected to the surface of the mounting shaft. The top of the inner wall of the mounting box is rotatably connected to an adjustment plate via a rotating shaft. An adjustment assembly is arranged between one end of the adjustment plate and the mounting box, and the other end of the adjustment plate is fixedly connected to a pawl matched with the ratchet.

[0010] Preferably, the adjustment assembly includes a fixed cylinder, which is fixedly connected to the installation box, and a pressing plate is slidably connected to the inner wall of the fixed cylinder, and a thrust rod is fixedly connected to one side of the pressing plate, and one end of the thrust rod away from the adjustment plate passes through the fixed cylinder and is rotatably connected to the adjustment plate, and a first spring is fixedly connected to one side of the pressing plate and on the surface of the thrust rod.

[0011] Preferably, the limiting mechanism includes a mounting tube, the top of the mounting tube is fixedly connected to the bottom of the mounting base, the inner wall of the mounting tube is slidably connected to a first movable plate, a fine-tuning assembly is provided between the bottom of the first movable plate and the mounting tube, the top of the first movable plate is fixedly connected to a push rod, the top of the push rod passes through the mounting base and extends to above the mounting base, the top of the push rod is fixedly connected to a mounting disk, and a limiting assembly is provided at the edge of the mounting disk.

[0012] Preferably, the limit assembly includes a limit plate, which is fixedly connected to the mounting plate, a first baffle being fixedly connected to the side of the bottom of the limit plate away from the top rod, a limit rod being provided on one side of the first baffle, one end of the limit rod being fixedly connected to an anti-drop plate, a second spring being fixedly connected to one side of the anti-drop plate and located on the surface of the limit rod, an end of the limit rod away from the anti-drop plate passes through the first baffle and extends to the outside of the first baffle, and an end of the limit rod located on the outside of the first baffle is fixedly connected to the second baffle.

[0013] Preferably, the fine-tuning assembly includes an internal threaded tube, the bottom end of the internal threaded tube is rotatably connected to the bottom of the inner wall of the mounting tube, the inner wall of the internal threaded tube is threadedly connected with a threaded rod, the top of the threaded rod is fixedly connected with a second movable plate, the second movable plate is slidably connected to the inner wall of the mounting tube via a slide rail, the top of the second movable plate is fixedly connected with a third spring, and the top of the third spring is fixedly connected to the bottom of the first movable plate.

[0014] Preferably, an adjusting rod is provided on one side of the mounting tube, the adjusting rod passes through the mounting tube and is rotatably connected to the mounting tube, one end of the adjusting rod located inside the mounting tube is fixedly connected to a bevel gear, the surface of the internally threaded tube is fixedly connected to a bevel gear ring matching the bevel gear, the inner wall of the mounting tube is fixedly connected to a support rail, the inner wall of the support rail is rotatably connected to a support ring, and the support ring is fixedly connected to the internally threaded tube.

[0015] The present invention also discloses a unidirectional and bidirectional extrusion precision forming processing system and method for a three-pronged universal joint fork, which specifically comprises the following steps:

[0016] S1. Put the blank to be processed on the mounting plate and the limit plate. Under the action of the second spring, the anti-slip plate drives the second baffle plate to clamp and fix the blank through the limit rod. Open the telescopic rod through the control panel. The telescopic rod works by pushing the first molding die and the first linkage plate to move together through the bearing plate. The movement of the first linkage plate drives the second linkage plate to move together. When the second linkage plate moves, it drives the rack plate to move. The rack plate movement drives the limit gear and the mounting shaft to rotate together through the meshing action. The mounting shaft rotates the ratchet wheel and rotates together with the ratchet to prevent the rack plate, the second linkage plate and the second molding die from returning. The movement of the second linkage plate drives the second molding die to cooperate with the first molding die to extrude the blank.

[0017] S2. When the blank is squeezed and deformed by the first molding die and the second molding die, the second baffle is pushed away from the limiting plate by the blank. At the same time, the limiting plate and the mounting plate push the first movable plate to move and compress the third spring through the push rod. When the second baffle moves, the second spring is further compressed to ensure that the limiting assembly always effectively limits the blank during extrusion to ensure the accuracy of the blank extrusion molding.

[0018] S3. When the blank is squeezed and deformed by the first forming die and the second forming die, the adjusting rod is rotated to drive the bevel gear to rotate together. The rotation of the bevel gear drives the bevel gear ring and the internal threaded tube to rotate together through the meshing action. The rotation of the internal threaded tube drives the second movable plate to slide downward along the inner wall of the mounting tube through the threaded rod to reduce the preload force of the third spring, thereby preventing the third spring from being over-extruded.

[0019] S4, the telescopic rod is continuously extended and retracted to drive the first forming die to extrude the blank through the bearing plate, and the blank is extruded into a long strip-shaped three-pronged universal joint cross-section long axis blank. The telescopic rod drives the first forming die and the first linkage plate to reset through the bearing plate, and pushes the pressing plate to push the adjusting plate through the thrust rod to rotate around the rotating shaft to drive the pawl and the ratchet teeth of the ratchet wheel to disengage, and the rotating installation shaft drives the limit gear to rotate. The rotation of the limit gear drives the rack plate, the second linkage plate and the second forming die to reset through the meshing action, and the formed blank is removed from the limiting mechanism, and the extruded long axis blank with a three-pronged universal joint cross-section is processed into multiple semi-finished products by wire cutting according to the size requirements of the final product, and the multiple semi-finished products cut by wire are respectively cut into three-pronged universal joint finished products according to the size requirements.

[0020] In step S1, the telescopic rod is a hydraulic telescopic rod.

[0021] (III) Beneficial effects

[0022] The present invention provides a unidirectional and bidirectional extrusion precision forming processing system and method for a three-pronged universal joint fork. Compared with the prior art, it has the following beneficial effects:

[0023] (1) The unidirectional and bidirectional extrusion precision forming processing system and method of the three-pronged universal joint fork include a mounting box through a non-return mechanism, the mounting box is fixedly connected to one side of the mounting vertical plate, a mounting shaft is arranged on the top of the mounting box, the mounting shaft passes through the mounting box and is rotatably connected to the mounting box, a non-return assembly is arranged between the mounting shaft and the mounting box, the bottom end of the mounting shaft is rotatably connected to the top of the mounting base, a limit gear is fixedly connected to the surface of the mounting shaft, a rack plate matched with the limit gear is fixedly connected to one side of the second linkage plate, the non-return assembly includes a ratchet, the ratchet is located inside the mounting box and is fixedly connected to the surface of the mounting shaft, an adjustment plate is rotatably connected to the top of the inner wall of the mounting box through a rotating shaft, an adjustment plate is arranged between one end of the adjustment plate and the mounting box. The yoke is a member of a group of members and is adapted to engage with the ratchet wheel at the other end of the adjusting plate, the member comprising a fixed cylinder which is fixedly connected to the mounting box, a pressing plate being slidably connected to the inner wall of the fixed cylinder, a thrust rod being fixedly connected to one side of the pressing plate, an end of the thrust rod away from the adjusting plate passes through the fixed cylinder and is rotatably connected to the adjusting plate, a first spring is fixedly connected to one side of the pressing plate and located on the surface of the thrust rod, through the setting of the check mechanism, after the first forming die cooperates with the second forming die to extrude the blank and separates from the blank, the check mechanism can limit the second forming die, thereby fixing and limiting the blank and avoiding displacement of the blank, which not only reduces the difficulty of subsequent processing, but also effectively improves the precision and quality of the finished product of the three-pronged universal joint fork.

[0024] (2) The unidirectional and bidirectional extrusion precision forming processing system and method of the three-pronged universal joint fork include a limit plate through a limit assembly, the limit plate is fixedly connected to the mounting plate, a first baffle is fixedly connected to the bottom of the limit plate away from the top rod, a limit rod is arranged on one side of the first baffle, one end of the limit rod is fixedly connected to an anti-slip plate, a second spring is fixedly connected to one side of the anti-slip plate and located on the surface of the limit rod, one end of the limit rod away from the anti-slip plate passes through the first baffle and extends to the outside of the first baffle, and one end of the limit rod located on the outside of the first baffle is fixedly connected to the second baffle. Through the setting of the limit assembly, it is convenient to fix and limit the position of the blank during initial processing, thereby laying a foundation for the precision of the extrusion processing of the three-pronged universal joint fork.

[0025] (3) The unidirectional and bidirectional extrusion precision forming processing system and method of the three-pronged universal joint fork include an internal threaded tube through a fine-tuning component, the bottom end of the internal threaded tube is rotatably connected to the bottom of the inner wall of the mounting tube, the inner wall of the internal threaded tube is threadedly connected to a threaded rod, the top of the threaded rod is fixedly connected to a second movable plate, the second movable plate is slidably connected to the inner wall of the mounting tube through a slide rail, the top of the second movable plate is fixedly connected to a third spring, the top of the third spring is fixedly connected to the bottom of the first movable plate, an adjusting rod is provided on one side of the mounting tube, the adjusting rod passes through the mounting tube and is rotatably connected to the mounting tube, one end of the adjusting rod located inside the mounting tube is fixedly connected to a bevel gear, the surface of the internal threaded tube is fixedly connected to a bevel gear ring matched with the bevel gear, the inner wall of the mounting tube is fixedly connected to a support rail, the inner wall of the support rail is rotatably connected to a support ring, the support ring is fixedly connected to the internal threaded tube, and through the setting of the fine-tuning component, during the extrusion deformation of the blank, the preload force of the third spring is continuously adjusted, which not only ensures that the blank can be effectively limited during the extrusion deformation, but also does not interfere with the deformation of the blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0027] Figure 2 A top view of the structure of the present invention;

[0028] Figure 3 A three-dimensional diagram of the second molding die of the structure of the present invention;

[0029] Figure 4 A three-dimensional diagram of the non-return mechanism of the present invention;

[0030] Figure 5 A three-dimensional diagram of the anti-return assembly of the structure of the present invention;

[0031] Figure 6 A three-dimensional diagram of the structural adjustment assembly of the present invention;

[0032] Figure 7 It is a cross-sectional view of the structural limiting mechanism of the present invention;

[0033] Figure 8 The structure of the present invention Figure 7 A partial enlarged view of the middle A;

[0034] Fig. 9 The structure of the present invention Figure 7 A partial enlarged view of point B in the middle;

[0035] Fig.10 It is a three-dimensional diagram of the structural fine-tuning component of the present invention.

[0036] In the figure, 1 is a mounting base, 2 is a supporting leg, 3 is a mounting vertical plate, 4 is a telescopic rod, 5 is a non-return mechanism, 51 is a mounting box, 52 is a mounting shaft, 53 is a limiting gear, 54 is a rack plate, 55 is a non-return assembly, 551 is a ratchet, 552 is a rotating shaft, 553 is an adjusting plate, 554 is a pawl, 555 is an adjusting assembly, 5551 is a fixing cylinder, 5552 is a pressing plate, 5553 is a thrust rod, 5554 is a first spring, 6 is a limiting mechanism, 61 is a mounting cylinder, 62 is a first movable plate, 63 is a fine-tuning assembly, and 631 is an internally threaded tube , 632 threaded rod, 633 second movable plate, 634 slide rail, 635 third spring, 636 adjusting rod, 637 bevel gear, 638 bevel gear ring, 639 support rail, 6310 support ring, 64 push rod, 65 mounting plate, 66 position assembly, 661 limit plate, 662 first baffle, 663 limit rod, 664 anti-slip plate, 665 second spring, 666 second baffle, 7 bearing plate, 8 first molding die, 9 first linkage plate, 10 second molding die, 11 second linkage plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-10The embodiment of the present invention provides a technical solution: a single- and double-direction extrusion precision forming processing system for a three-pronged universal joint fork, comprising a mounting base 1, four corners of the bottom of the mounting base 1 are fixedly connected with support legs 2, both sides of the top of the mounting base 1 are fixedly connected with mounting vertical plates 3, one side of the mounting vertical plate 3 is provided with a telescopic rod 4, the output end of the telescopic rod 4 is fixedly connected with a bearing plate 7, one side of the bearing plate 7 is fixedly connected with a first forming die 8, the bottom of the first forming die 8 is slidably connected to the top of the mounting base 1 through a guide rail, one side of the bearing plate 7 and located on both sides of the first forming die 8 are fixedly connected with a first linkage plate 9, one side of the mounting vertical plate 3 is slidably connected with two second forming dies 10 adapted to the first forming die 8, and the second The bottom of the forming mold 10 is slidably connected to the top of the mounting base 1 through a guide rail, and the side of the second forming mold 10 is slidably connected to the surface of the mounting vertical plate 3 through a guide rail. The two second forming molds 10 are both slidably connected to the mounting vertical plate 3. The two second forming molds 10 are respectively located on both sides of the first forming mold 8. The two second forming molds 10 are fixedly connected to the side close to the first linkage plate 9 with a second linkage plate 11 that is adapted to the first linkage plate 9. A check mechanism 5 is arranged between the mounting base 1, the mounting vertical plate 3 and the second linkage plate 11. A limiting mechanism 6 is arranged at the top of the mounting base 1 and between the first forming mold 8 and the two second forming molds 10. The limiting mechanism 6 passes through the mounting base 1 and extends to the bottom of the mounting base 1.

[0039] In the embodiment of the present invention, the non-return mechanism 5 includes an installation box 51, which is fixedly connected to one side of the installation vertical plate 3. A mounting shaft 52 is arranged on the top of the installation box 51. The installation shaft 52 passes through the installation box 51 and is rotatably connected to the installation box 51. A non-return assembly 55 is arranged between the installation shaft 52 and the installation box 51. The bottom end of the installation shaft 52 is rotatably connected to the top of the installation base 1. The surface of the installation shaft 52 is fixedly connected to a limit gear 53, and one side of the second linkage plate 11 is fixedly connected to a rack plate 54 adapted to the limit gear 53.

[0040] In an embodiment of the present invention, the anti-return component 55 includes a ratchet 551, which is located inside the installation box 51 and fixedly connected to the surface of the installation shaft 52. The top of the inner wall of the installation box 51 is rotatably connected to an adjustment plate 553 via a rotating shaft 552. An adjustment component 555 is arranged between one end of the adjustment plate 553 and the installation box 51, and the other end of the adjustment plate 553 is fixedly connected to a pawl 554 that matches the ratchet 551.

[0041] In the embodiment of the present invention, the adjustment component 555 includes a fixed cylinder 5551, which is fixedly connected to the installation box 51. The inner wall of the fixed cylinder 5551 is slidably connected with a pressing plate 5552, and one side of the pressing plate 5552 is fixedly connected with a thrust rod 5553. One end of the thrust rod 5553 away from the adjustment plate 553 passes through the fixed cylinder 5551 and is rotatably connected to the adjustment plate 553. A first spring 5554 is fixedly connected to one side of the pressing plate 5552 and on the surface of the thrust rod 5553, and the first spring 5554 is in a compressed state.

[0042] In the embodiment of the present invention, the limiting mechanism 6 includes a mounting tube 61, the top of the mounting tube 61 is fixedly connected to the bottom of the mounting base 1, the inner wall of the mounting tube 61 is slidably connected with a first movable plate 62, a fine-tuning component 63 is arranged between the bottom of the first movable plate 62 and the mounting tube 61, the top of the first movable plate 62 is fixedly connected with a push rod 64, the top of the push rod 64 passes through the mounting base 1 and extends to the top of the mounting base 1, the top of the push rod 64 is fixedly connected with a mounting plate 65, and a limiting component 66 is arranged on the edge of the mounting plate 65.

[0043] In the embodiment of the present invention, the limiting assembly 66 includes a limiting plate 661, which is fixedly connected to the mounting plate 65. The bottom of the limiting plate 661 is fixedly connected to a first baffle 662 on a side away from the top rod 64. A limiting rod 663 is provided on one side of the first baffle 662. One end of the limiting rod 663 is fixedly connected to an anti-slip plate 664. A second spring 665 is fixedly connected to one side of the anti-slip plate 664 and on the surface of the limiting rod 663. The second spring 665 is in a compressed state. One end of the limiting rod 663 away from the anti-slip plate 664 passes through the first baffle 662 and extends to the outside of the first baffle 662. The end of the limiting rod 663 located on the outside of the first baffle 662 is fixedly connected to the second baffle 666.

[0044] In the embodiment of the present invention, the fine-tuning assembly 63 includes an internal threaded tube 631, the bottom end of the internal threaded tube 631 is rotatably connected to the bottom of the inner wall of the mounting tube 61, the inner wall of the internal threaded tube 631 is threadedly connected to a threaded rod 632, the top of the threaded rod 632 is fixedly connected to a second movable plate 633, the second movable plate 633 is slidably connected to the inner wall of the mounting tube 61 through a slide rail 634, the top of the second movable plate 633 is fixedly connected to a third spring 635, the top of the third spring 635 is fixedly connected to the bottom of the first movable plate 62 Connection, an adjusting rod 636 is provided on one side of the mounting cylinder 61, the adjusting rod 636 passes through the mounting cylinder 61 and is rotatably connected to the mounting cylinder 61, one end of the adjusting rod 636 located inside the mounting cylinder 61 is fixedly connected with a bevel gear 637, the surface of the internal threaded tube 631 is fixedly connected with a bevel gear ring 638 matched with the bevel gear 637, the inner wall of the mounting cylinder 61 is fixedly connected with a support rail 639, the inner wall of the support rail 639 is rotatably connected with a support ring 6310, and the support ring 6310 is fixedly connected to the internal threaded tube 631.

[0045] The present invention also discloses a unidirectional and bidirectional extrusion precision forming processing system and method for a three-pronged universal joint fork, which specifically comprises the following steps:

[0046] S1. Put the blank to be processed on the mounting plate 65 and the limiting plate 661. The anti-slip plate 664 drives the second baffle 666 to clamp and fix the blank through the limiting rod 663 under the action of the second spring 665. Open the telescopic rod 4 through the control panel. The telescopic rod 4 works by pushing the first molding die 8 and the first linkage plate 9 to move together through the bearing plate 7. The movement of the first linkage plate 9 drives the second linkage plate 11 to move together. When the second linkage plate 11 moves, it drives the rack plate 54 to move. The rack plate 54 moves and drives the limiting gear 53 and the mounting shaft 52 to rotate together through the meshing action. The mounting shaft 52 rotates the ratchet 551 to rotate together with the ratchet pawl 554 to prevent the rack plate 54, the second linkage plate 11 and the second molding die 10 from returning. The movement of the second linkage plate 11 drives the second molding die 10 to cooperate with the first molding die 8 to extrude the blank.

[0047] S2. When the blank is squeezed and deformed by the first molding die 8 and the second molding die 10, the second baffle 666 is pushed away from the limiting plate 661 by the blank. At the same time, the limiting plate 661 and the mounting plate 65 push the first movable plate 62 through the push rod 64 to move and compress the third spring 635. When the second baffle 666 moves, the second spring 665 is further compressed to ensure that the limiting assembly 66 always effectively limits the blank during extrusion to ensure the accuracy of the blank extrusion molding.

[0048] S3. When the blank is squeezed and deformed by the first molding die 8 and the second molding die 10, the adjusting rod 636 is rotated to drive the bevel gear 637 to rotate together. The rotation of the bevel gear 637 drives the bevel gear ring 638 and the internal threaded tube 631 to rotate together through the meshing action. The rotation of the internal threaded tube 631 drives the second movable plate 633 to slide downward along the inner wall of the mounting tube 61 through the threaded rod 632 to reduce the preload force of the third spring 635, thereby preventing the third spring 635 from being over-extruded.

[0049] S4, the telescopic rod 4 is continuously extended and retracted to drive the first forming die 8 to extrude the blank through the bearing plate 7, and the blank is extruded into a long-strip three-pronged universal joint cross-section long-axis blank. The telescopic rod 4 drives the first forming die 8 and the first linkage plate 9 to reset through the bearing plate 7, and pushes the pressing plate 5552 to push the adjusting plate 553 to rotate around the rotating shaft 552 through the thrust rod 5553, driving the pawl 554 to disengage from the ratchet teeth of the ratchet wheel 551, and the rotating installation shaft 52 drives the limit gear 53 to rotate. The limit gear 53 rotates and drives the rack plate 54, the second linkage plate 11 and the second forming die 10 to reset through the meshing action, and the formed blank is removed from the limiting mechanism 6, and the extruded long-axis blank with a three-pronged universal joint cross-section is processed into multiple semi-finished products by wire cutting according to the size requirements of the final product, and the multiple semi-finished products cut by wire are respectively cut into three-pronged universal joint finished products according to the size requirements.

[0050] In the embodiment of the present invention, the telescopic rod 4 in step S1 is a hydraulic telescopic rod 4 .

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A unidirectional and bidirectional extrusion precision forming processing system for a three-pronged universal joint fork, comprising a mounting base (1), wherein the four corners of the bottom of the mounting base (1) are fixedly connected to support legs (2), characterized in that: Both sides of the top of the mounting base (1) are fixedly connected to mounting upright plates (3), one side of the mounting upright plate (3) is provided with a telescopic rod (4), the output end of the telescopic rod (4) is fixedly connected to a bearing plate (7), one side of the bearing plate (7) is fixedly connected to a first forming die (8), one side of the bearing plate (7) and both sides of the first forming die (8) are fixedly connected to a first linkage plate (9), one side of the bearing plate (7) and located on both sides of the first forming die (8), two second forming dies (10) adapted to the first forming die (8) are slidably connected to one side of the mounting upright plate (3), and the two second forming dies (10) are both slidably connected to the mounting upright plate (3). Then, the two second molding dies (10) are respectively located on both sides of the first molding dies (8); a second linkage plate (11) adapted to the first linkage plate (9) is fixedly connected to one side of the two second molding dies (10) close to the first linkage plate (9); a non-return mechanism (5) is arranged between the mounting base (1), the mounting vertical plate (3) and the second linkage plate (11); a limiting mechanism (6) is arranged at the top of the mounting base (1) and between the first molding die (8) and the two second molding dies (10); the limiting mechanism (6) penetrates the mounting base (1) and extends to the bottom of the mounting base (1); The non-return mechanism (5) comprises a mounting box (51), the mounting box (51) being fixedly connected to one side of the mounting vertical plate (3), a mounting shaft (52) being arranged at the top of the mounting box (51), the mounting shaft (52) penetrating the mounting box (51) and being rotatably connected to the mounting box (51), a non-return assembly (55) being arranged between the mounting shaft (52) and the mounting box (51), the bottom end of the mounting shaft (52) being rotatably connected to the top of the mounting base (1), a limit gear (53) being fixedly connected to the surface of the mounting shaft (52), and a rack plate (54) matching the limit gear (53) being fixedly connected to one side of the second linkage plate (11); The limiting mechanism (6) comprises a mounting tube (61), the top of the mounting tube (61) is fixedly connected to the bottom of the mounting base (1), the inner wall of the mounting tube (61) is slidably connected to a first movable plate (62), a fine adjustment component (63) is provided between the bottom of the first movable plate (62) and the mounting tube (61), the top of the first movable plate (62) is fixedly connected to a push rod (64), the top of the push rod (64) passes through the mounting base (1) and extends to the top of the mounting base (1), the top of the push rod (64) is fixedly connected to a mounting plate (65), and a limiting component (66) is provided on the edge of the mounting plate (65); The fine-tuning assembly (63) comprises an internally threaded tube (631), the bottom end of the internally threaded tube (631) being rotatably connected to the bottom of the inner wall of the mounting tube (61), the inner wall of the internally threaded tube (631) being threadedly connected to a threaded rod (632), the top end of the threaded rod (632) being fixedly connected to a second movable plate (633), the second movable plate (633) being slidably connected to the inner wall of the mounting tube (61) via a slide rail (634), the top end of the second movable plate (633) being fixedly connected to a third spring (635), the top end of the third spring (635) being fixedly connected to the bottom of the first movable plate (62).

2. The unidirectional and bidirectional extrusion precision forming processing system of the three-pronged universal joint fork according to claim 1 is characterized in that: The anti-return assembly (55) comprises a ratchet (551), the ratchet (551) being located inside the installation box (51) and fixedly connected to the surface of the installation shaft (52); an adjustment plate (553) is rotatably connected to the top of the inner wall of the installation box (51) via a rotating shaft (552); an adjustment assembly (555) is provided between one end of the adjustment plate (553) and the installation box (51); and a pawl (554) adapted to the ratchet (551) is fixedly connected to the other end of the adjustment plate (553).

3. The unidirectional and bidirectional extrusion precision forming processing system of the three-pronged universal joint fork according to claim 2 is characterized in that: The adjustment assembly (555) comprises a fixed cylinder (5551), wherein the fixed cylinder (5551) is fixedly connected to the installation box (51), a pressing plate (5552) is slidably connected to the inner wall of the fixed cylinder (5551), a thrust rod (5553) is fixedly connected to one side of the pressing plate (5552), an end of the thrust rod (5553) away from the adjustment plate (553) passes through the fixed cylinder (5551) and is rotatably connected to the adjustment plate (553), and a first spring (5554) is fixedly connected to one side of the pressing plate (5552) and on the surface of the thrust rod (5553).

4. The unidirectional and bidirectional extrusion precision forming processing system of the three-pronged universal joint fork according to claim 3 is characterized in that: The limiting assembly (66) comprises a limiting plate (661), wherein the limiting plate (661) is fixedly connected to the mounting plate (65); a first baffle (662) is fixedly connected to a side of the bottom of the limiting plate (661) away from the top rod (64); a limiting rod (663) is provided on one side of the first baffle (662); one end of the limiting rod (663) is fixedly connected to an anti-slip plate (664); a second spring (665) is fixedly connected to one side of the anti-slip plate (664) and located on a surface of the limiting rod (663); an end of the limiting rod (663) away from the anti-slip plate (664) passes through the first baffle (662) and extends to the outside of the first baffle (662); and an end of the limiting rod (663) located on the outside of the first baffle (662) is fixedly connected to a second baffle (666).

5. The unidirectional and bidirectional extrusion precision forming processing system of the three-pronged universal joint fork according to claim 4 is characterized in that: An adjusting rod (636) is provided on one side of the mounting cylinder (61), the adjusting rod (636) passes through the mounting cylinder (61) and is rotatably connected to the mounting cylinder (61), one end of the adjusting rod (636) located inside the mounting cylinder (61) is fixedly connected to a bevel gear (637), a bevel gear ring (638) matching the bevel gear (637) is fixedly connected to the surface of the internally threaded tube (631), a support rail (639) is fixedly connected to the inner wall of the mounting cylinder (61), a support ring (6310) is rotatably connected to the inner wall of the support rail (639), and the support ring (6310) is fixedly connected to the internally threaded tube (631).

6. A processing method using the unidirectional and bidirectional extrusion precision forming processing system of the three-pronged universal joint fork according to claim 5, characterized in that: The specific steps include: S1. The blank to be processed is placed on the mounting plate (65) and the limiting plate (661). The anti-slip plate (664) drives the second baffle plate (666) to clamp and fix the blank through the limiting rod (663) under the action of the second spring (665). The telescopic rod (4) is opened through the control panel. The telescopic rod (4) works to push the first molding die (8) and the first linkage plate (9) to move together through the bearing plate (7). The movement of the first linkage plate (9) pushes the second linkage plate (11) to move together. When the second linkage plate (11) moves, it drives the rack plate (54) to move. The rack plate (54) moves, driving the limit gear (53) and the mounting shaft (52) to rotate together through meshing action. The mounting shaft (52) rotates the ratchet wheel (551) and the ratchet pawl (554) to prevent the rack plate (54), the second linkage plate (11) and the second molding die (10) from turning back. The second linkage plate (11) moves to push the second molding die (10) to cooperate with the first molding die (8) to extrude the blank. S2, when the blank is squeezed and deformed by the first molding die (8) and the second molding die (10), the second baffle (666) is pushed away from the limiting plate (661) by the blank, and at the same time, the limiting plate (661) and the mounting plate (65) push the first movable plate (62) through the push rod (64) to move and compress the third spring (635). When the second baffle (666) moves, the second spring (665) is further compressed, so that when the blank is extruded, the limiting component (66) always effectively limits the blank, thereby ensuring the accuracy of the blank extrusion molding; S3, when the blank is squeezed and deformed by the first molding die (8) and the second molding die (10), the adjusting rod (636) is rotated to drive the bevel gear (637) to rotate together, and the bevel gear (637) rotates to drive the bevel gear ring (638) and the internal threaded tube (631) to rotate together through meshing action, and the internal threaded tube (631) rotates to drive the second movable plate (633) to slide downward along the inner wall of the mounting tube (61) through the threaded rod (632), so that the preload force of the third spring (635) is reduced, thereby preventing the third spring (635) from being excessively squeezed; S4, the telescopic rod (4) is continuously extended and retracted to drive the first forming die (8) to extrude the blank through the bearing plate (7), and the blank is extruded into a long strip-shaped three-pronged universal joint cross-section long shaft blank. The telescopic rod (4) drives the first forming die (8) and the first linkage plate (9) to reset through the bearing plate (7), and pushes the pressing plate (5552) to push the adjusting plate (553) to rotate around the rotating shaft (552) through the thrust rod (5553), driving the ratchet pawl (554) to disengage the ratchet teeth of the ratchet wheel (551), and rotating the mounting shaft (5 2) driving the limit gear (53) to rotate, the limit gear (53) rotating and driving the rack plate (54), the second linkage plate (11) and the second forming die (10) to reset through meshing action, removing the formed blank from the limit mechanism (6), processing the extruded long shaft blank with a three-pronged universal joint cross section into a plurality of semi-finished parts by wire cutting according to the size requirements of the final product, and cutting the plurality of semi-finished parts into three-pronged universal joint finished parts according to the size requirements.

7. The processing method of the unidirectional and bidirectional extrusion precision forming processing system of the three-pronged universal joint fork according to claim 6, characterized in that: In step S1, the telescopic rod (4) is a hydraulic telescopic rod (4).

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