Four-column type free forging hydraulic press

Abstract

The invention discloses a four-column type free forging hydraulic press, which belongs to the technical field of magnesium alloy forging equipment, and comprises a main frame, an object placing table, a displacement track, a return oil cylinder, a placing platform, a clamping assembly, a linkage assembly, a hydraulic sliding block and an oil cylinder, the main frame is mounted in the placing platform, and a driving assembly is mounted on the displacement track; the storage table is in transmission connection with the bottom side of the main rack and the displacement track, the oil cylinders are installed at the upper end of the main rack, the bottoms of the oil cylinders penetrate out of the bottom surface of the bottom of the main rack, the bottom ends of the oil cylinders are connected with the hydraulic sliding blocks, the hydraulic sliding blocks are in transmission connection with the main rack, the return oil cylinders are arranged in pairs, and the top ends of the return oil cylinders are connected with the hydraulic sliding blocks. The linkage assemblies are installed on the upper surface of the bottom of the main rack and arranged in pairs, and the upper ends of the linkage assemblies are connected with the side edges of the hydraulic sliding blocks. The problem that in the prior art, due to the fact that lifting of an upper anvil and reversing of a workpiece cannot be achieved synchronously, machining efficiency is low is solved. And the forging efficiency and the automation degree are improved.

Description

Technical Field

[0001] The invention relates to the technical field of magnesium alloy forging equipment, in particular to a four-column free forging hydraulic press. Background Art

[0002] The forging hydraulic press is a device for secondary processing of magnesium alloy after casting. Its purpose is to expel the air and secondary plasticity in the magnesium alloy.

[0003] For the existing hydraulic presses, because the magnesium alloy needs to be reversed during the processing and processing operations need to be performed at various angles, most of the existing equipment hammers on one position multiple times, then lifts the upper anvil, and then reverses the direction through the side clamping device before hammering. Most hydraulic presses are not equipped with clamping devices. This results in manual adjustment of the angles of parts, which not only increases the labor cost, but also has a low degree of automation, which increases the time of the forging process and significantly reduces efficiency.

[0004] Therefore, how to provide a four-column free forging hydraulic press to solve the defects existing in the structure of the existing hydraulic press is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] To this end, the present invention provides a four-column free forging hydraulic press to solve the problem of low processing efficiency caused by the fact that the lifting of the upper anvil and the reversal of the workpiece cannot be realized synchronously in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The invention discloses a four-column free forging hydraulic press, comprising:

[0008] A placement platform, the interior of which is a hollow structure, wherein a main frame is installed in the placement platform;

[0009] Displacement rails are arranged in pairs and are installed on the left and right surfaces of the bottom side of the main frame, the bottom ends of the displacement rails are placed in the hollow structure, and the displacement rails are installed with drive components;

[0010] A storage platform, which is transmission-connected to the bottom side of the main frame and the displacement track, and one end of the driving assembly is against the side surface of the storage platform;

[0011] A plurality of oil cylinders are installed at the upper end of the main frame, the bottom of the oil cylinders penetrates the bottom surface of the main frame, the bottom of the oil cylinders is connected to a hydraulic slide block, and the hydraulic slide block is drivingly connected to the main frame;

[0012] Return cylinders are arranged in pairs and installed in the hollow structure, and the top ends of the return cylinders are connected to the hydraulic slide block;

[0013] The clamping components are arranged in pairs and installed on the upper surface of the bottom of the main frame;

[0014] The linkage components are arranged in pairs. The upper ends are connected to the sides of the hydraulic sliders, and the bottoms of the linkage components are drivingly connected to the outer ends of the clamping components.

[0015] In a possible implementation manner, the clamping component includes:

[0016] The mounting housing is provided with a lifting cylinder at the bottom, and the bottom of the lifting cylinder is installed on the upper surface of the bottom block of the main frame;

[0017] The driving members are arranged in pairs and installed in the mounting housing, and both ends of the driving members penetrate through the side walls of the mounting housing;

[0018] The rotating member is installed in the mounting housing, and both ends of the rotating member penetrate through the side walls of the mounting housing. The rotating member is arranged between the two driving members;

[0019] The chuck has one end connected to the ends of the rotating member and the driving member together.

[0020] In a possible implementation manner, the chuck includes:

[0021] The first connecting block has insertion holes formed on the surface of one end. The insertion holes are arranged in pairs, and limiting holes are formed on the side walls of the insertion holes. One end of the driving member is inserted into the insertion holes;

[0022] The second connecting block has a concave structure formed on the surface of one end. A through hole is further formed in the first connecting block. The through hole penetrates through the first connecting block, and one end of the through hole extends to the surface of the other end of the second connecting block. The through hole is arranged between the two insertion holes, and the end of the rotating member is inserted into the through hole;

[0023] The limiting grooves are arranged in pairs and formed in the second connecting block.

[0024] In a possible implementation manner, the driving member includes:

[0025] The first guide sleeve rod is installed in the mounting housing, and a limiting ring is installed on the outer surface of the first guide sleeve rod;

[0026] The second guide sleeve rod has one end installed in the mounting housing, and the other end of the second guide sleeve rod is connected with a rotating sleeve rod. A first gear is installed on the outer side of one end of the rotating sleeve rod;

[0027] The drive rod passes through the first guide sleeve rod and the second guide sleeve rod. One end of the drive rod is connected with a connector. A limit ring is installed on the outer side of the connector. The connector is inserted into the jacking hole. The limit ring is arranged in the limit hole. A limiting block is installed at the other end of the drive rod. An external thread structure is arranged on the outer surface of the drive rod.

[0028] In a possible implementation manner, limiting pieces are installed on the outer sides of the first guide sleeve rod and the second guide sleeve rod. An internal thread structure is installed inside the first guide sleeve rod and the second guide sleeve rod.

[0029] In a possible implementation manner, the rotating member includes:

[0030] A sleeve installed in the installation housing. A second gear is installed on the outer side of the sleeve.

[0031] A transmission rod is in transmission connection in the sleeve. An installation head is installed at one end of one side of the transmission rod. Clamping blocks are installed on the upper and lower sides of the outer end of the installation head. The clamping blocks are installed in the limit grooves.

[0032] A limit sleeve, one end of which is inserted into the end of the sleeve. The transmission rod passes through the limit sleeve.

[0033] In a possible implementation manner, the linkage assembly includes:

[0034] An installation block installed on the side wall of the hydraulic slider;

[0035] A drive rack installed at the bottom of the installation block;

[0036] Lifting rods, arranged in pairs, are installed at the bottom of the installation block. The lifting rods are arranged inside the drive rack;

[0037] Offset racks, arranged in pairs, are respectively installed on the lifting rods. The offset racks and the drive rack are in meshing transmission with the clamping assembly.

[0038] In a possible implementation manner, the drive rack and the lifting rod are connected through a U-shaped block.

[0039] In a possible implementation manner, a rotary forging workbench is installed on the placing table. An upper anvil is installed on the bottom surface of the hydraulic slider.

[0040] By setting up a linkage component, the present invention combines the lifting movements of the clamping component and the hydraulic slider. When forging and hammering a workpiece, the clamping component moves away from the machining position to prevent interference with the machining. When the hydraulic slider moves upward by a relatively large distance, the linkage component is used to drive the clamping component to perform clamping and commutation on the workpiece. When the hydraulic slider moves downward for machining, the linkage component can also drive the clamping component away from the workpiece. Such an operation can significantly improve the machining efficiency and has a higher degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are merely exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0042] The structures, proportions, sizes, etc. depicted in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0043] Figure 1 is a three-dimensional view of the four-column free forging hydraulic press provided by the present invention;

[0044] Figure 2 is a three-dimensional view of the clamping component provided by the present invention;

[0045] Figure 3 is a three-dimensional view of the chuck provided by the present invention;

[0046] Figure 4 is a cross-sectional view of the second connecting block provided by the present invention;

[0047] Figure 5 is a three-dimensional view of the driving member provided by the present invention;

[0048] Figure 6 is a cross-sectional view of the rotating member provided by the present invention;

[0049] Figure 7 is a three-dimensional view of the linkage component provided by the present invention;

[0050] Figure 8 is a three-dimensional view of the offset rack provided by the present invention;

[0051] Figure 9 is a three-dimensional view of the driving rack provided by the present invention;

[0052] Figure 10 Stereogram of the forging workbench provided by the present invention;

[0053] In the figure: 2 main frames; 3 storage platforms; 4 displacement tracks; 5 return cylinders; 6 placement platforms; 7 clamping components; 71 rotating components; 711 sleeves; 712 second gears; 713 transmission rods; 714 mounting heads; 715 clamping blocks; 716 limiting sleeves; 72 driving components; 721 limiting blocks; 722 first gears; 723 driving rods; 724 limiting rings; 725 connecting heads; 726 limiting rings; 727 first guiding sleeve rods; 728 second guiding sleeve rods; 729 rotating sleeve rods; 73 mounting shells; 74 lifting cylinders; 75 chucks; 751 first connecting blocks; 752 jacks; 753 limiting holes; 754 through holes; 755 concave structures; 756 second connecting blocks; 757 limiting grooves; 8 linkage components; 81 mounting blocks; 82 lifting rods; 83 driving racks; 84 offset racks; 85 U-shaped blocks; 9 hydraulic sliders; 10 cylinders; 11 workbenches; 12 upper anvils. Specific embodiments

[0054] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0055] Please refer to Figures 1 - 10 , and now a four-column free forging hydraulic press disclosed by the present invention will be described. The present invention consists of nine parts, as Figure 1, including a main frame 2, a storage table 3, a displacement track 4, a return cylinder 5, a placement platform 6, a clamping component 7, a linkage component 8, a hydraulic slide 9 and a cylinder 10. The placement platform 6 is a hollow structure inside, and the main frame 2 is installed in the placement platform 6. The displacement tracks 4 are arranged in pairs and installed on the left and right surfaces of the bottom side of the main frame 2. The bottom end of the displacement track 4 is placed in the hollow structure. A driving component is installed on the displacement track 4. The storage table 3 is connected to the bottom side of the main frame 2 and the displacement track 4 by transmission, and one end of the driving component is against the side of the storage table 3 On the surface, several cylinders 10 are installed on the upper end of the main frame 2, and the bottom of the cylinder 10 passes through the bottom surface of the main frame 2. The bottom of the cylinder 10 is connected to a hydraulic slider 9, and the hydraulic slider 9 is transmission-connected to the main frame 2. The return cylinders 5 are arranged in pairs and installed in the hollow structure. The top of the return cylinder 5 is connected to the hydraulic slider 9. The clamping assemblies 7 are arranged in pairs and installed on the upper surface of the bottom of the main frame 2. The linkage assemblies 8 are arranged in pairs, and the upper ends are connected to the sides of the hydraulic slider 9. The bottom of the linkage assembly 8 is transmission-connected to the outer end of the clamping assembly 7.

[0056] When the present invention is in use, the driving component is utilized to drive the displacement of the placing table 3, and the rotary forging workbench 11 is placed below the workpiece. Then, the workpiece is placed above the rotary forging workbench 11, and then the driving component is utilized again to drive the displacement of the placing table 3 to align the placing table 3 with the upper anvil 12. At this time, oil is supplied to the lifting cylinder 74. Under the drive of the lifting cylinder 74, the mounting housing 73 moves upward. During the upward movement of the mounting housing 73, the first gear 722 moves along the driving rack 83. When the driving rack 83 drives the rotary sleeve rod 729 to rotate, due to the cooperation between the internal thread structure of the rotary sleeve rod 729 and the external thread structure of the driving rod 723, when the rotary sleeve rod 729 only rotates, the driving rod 723 rotates and translates along the internal thread structure, causing the end of the driving rod 723 to drive the displacement of the first connecting block 751. The displacement of the first connecting block 751 will push the second connecting block 756 closer to the workpiece. During the upward movement of the mounting housing 73, the second gear 712 of the rotating member 71 gradually approaches the offset rack 84 and meshes with the offset rack 84. After the offset rack 84 meshes with the second gear 712, the second gear 712 moves and rotates along the offset rack 84. The rotation of the second gear 712 will cause the entire rotating member 71 to rotate. By using the cooperation between the clamping block 715 and the limiting groove 757, the second connecting block 756 rotates. In this way, the workpiece can be quickly clamped and reversed while moving forward, and various styles of workpieces can be clamped. After the clamping adjustment or reversing is completed, the oil cylinder 10 supplies oil to drive the hydraulic slider 9 to move, and the upper anvil 12 is used to process the workpiece. The displacement of the hydraulic slider 9 will drive the linkage assembly 8 to move downward. During the downward movement of the linkage assembly 8, the movement of the driving rack 83 will drive the first gear 722 to rotate again, and this time the rotation direction of the first gear 722 is opposite. In this way, the driving rod 723 will translate in the opposite direction, pulling the first connecting block 751 away from the second connecting block 756. During the downward movement of the linkage assembly 8, another offset rack 84 will also mesh with the second gear 712 and cause the second gear 712 to rotate. At this time, the rotating member 71 will rotate. At this time, oil needs to be supplied to the sleeve 711 to push out the second connecting block 756 by the first connecting block 751, and the transmission rod 713 is driven to displace by the hydraulic oil to pull back the second connecting block 756. In this way, during the processing, the clamping assembly 7 will not affect the forging. When machining other positions of the workpiece, the return oil cylinder 5 drives the hydraulic slider 9 to move upward. At this time, the linkage assembly 8 moves upward. The displacement of the linkage assembly 8, by using the driving rack 83 and the offset rack 84, drives the rotating member 71 and the driving member 72 to move, causing the chuck 75 to approach the workpiece and clamping and reversing the workpiece. Such an operation links the lifting of the upper anvil 12 with the reversing of the workpiece, which can significantly improve the processing efficiency.

[0057] Based on the previous embodiment, as Figure 2, the clamping assembly 7 includes a rotating member 71, a driving member 72, a mounting housing 73, a lifting cylinder 74 and a chuck 75. A lifting cylinder 74 is installed at the bottom of the mounting housing 73, and the bottom of the lifting cylinder 74 is installed on the upper surface of the bottom block of the main frame 2. The driving members 72 are arranged in pairs and installed in the mounting housing 73. Both ends of the driving member 72 pass through the side wall of the mounting housing 73. The rotating member 71 is installed in the mounting housing 73, and both ends of the rotating member 71 pass through the side wall of the mounting housing 73. The rotating member 71 is arranged between the two driving members 72. One end of the chuck 75 is connected to the ends of the rotating member 71 and the driving member 72. The rotating member 71 can drive the chuck 75 to rotate, so that the workpiece can be processed with a reversed direction. The driving member 72 can drive the chuck 75 to approach and clamp the workpiece. The lifting cylinder 74 is used to lift the mounting housing 73 and send the mounting housing 73 to a position flush with the workpiece.

[0058] Based on the previous embodiment, as Figures 3 - 4 , the chuck 75 includes a first connecting block 751, a jack 752, a limiting hole 753, a through hole 754, a concave structure 755, a second connecting block 756 and a limiting groove 757. A jack 752 is opened on one end surface of the first connecting block 751. The jacks 752 are arranged in pairs, and a limiting hole 753 is opened on the side wall of the jack 752. One end of the driving member 72 is inserted into the jack 752. A concave structure 755 is arranged on one end surface of the second connecting block 756. A through hole 754 is also opened in the first connecting block 751. The through hole 754 penetrates the first connecting block 751, and one end of the through hole 754 extends to the other end surface of the second connecting block 756. The through hole 754 is arranged between the two jacks 752. The end of the rotating member 71 is inserted into the through hole 754. The limiting grooves 757 are arranged in pairs and opened in the second connecting block 756. The first connecting block 751 is used to connect with the driving member 72, and the jack 752 is provided for inserting the connecting head 725. By using the limiting hole 753, the connecting head 725 is restricted. By setting the limiting ring 724 in the limiting hole 753, since the driving rod 723 needs to rotate, it will drive the connecting head 725 to rotate. And by using the limiting ring 724, the connecting head 725 rotates in the first connecting block 751. During the rotation of the driving rod 723, it will translate. At this time, the limiting ring 724 can be used to abut against the limiting hole 753 to make the first connecting block 751 displace. The through hole 754 in the second connecting block 756 and the first connecting block 751 is for the rotating member 71 to pass through and connect the rotating member 71 with the second connecting block 756. And by installing the clamping block 715 using the limiting groove 757, when the rotating member 71 rotates, the limiting groove 757 abuts against the clamping block 715 to drive the second connecting block 756 to rotate. The setting of the concave structure 755 is to adapt to various shaped workpieces for clamping.

[0059] Based on the previous embodiment, as Figure 5 , the driving member 72 includes a limiting block 721, a first gear 722, a driving rod 723, a limiting ring 724, a connecting head 725, a limiting ring 726, a first guide sleeve rod 727, a second guide sleeve rod 728 and a rotating sleeve rod 729. The first guide sleeve rod 727 is installed in the installation housing 73, and a limiting ring 726 is installed on the outer surface of the first guide sleeve rod 727. One end of the second guide sleeve rod 728 is installed in the installation housing 73, and the other end of the second guide sleeve rod 728 is connected with a rotating sleeve rod 729. A first gear 722 is installed on the outer side of one end of the rotating sleeve rod 729. The driving rod 723 passes through the first guide sleeve rod 727 and the second guide sleeve rod 728. One end of the driving rod 723 is connected with a connecting head 725, and a limiting ring 724 is installed on the outer side of the connecting head 725. The connecting head 725 is inserted into the jack 752, and the limiting ring 724 is arranged in the limiting hole 753. A limiting block 721 is installed at the other end of the driving rod 723, and an external thread structure is arranged on the outer surface of the driving rod 723. When the driving rack 83 drives the first gear 722 to rotate, the rotating sleeve rod 729 rotates synchronously, and the second guide sleeve rod 728 also rotates. However, by using the rotating sleeve rod 729 and the limiting piece, the second guide sleeve rod 728 is stuck on the side wall of the installation housing 73. In this way, the second guide sleeve rod 728 can only rotate. By using the internal thread structure inside the second guide sleeve rod 728, the driving rod 723 can be rotated and translated, so that the driving rod 723 pushes the chuck 75 to translate. During the rotation and translation process of the driving rod 723, it also rotates and translates along the internal thread structure of the first guide sleeve rod 727. The first guide sleeve rod 727 can play a role in stabilizing the translation of the driving rod 723. The limiting block 721 is used to limit the translation distance of the driving rod 723. The limiting ring 726 on the first guide sleeve rod 727 cooperates with the limiting piece to stick the first guide sleeve rod 727 on the side wall of the installation housing 73.

[0060] Based on the previous embodiment, limiting pieces are installed on the outer sides of the first guide sleeve rod 727 and the second guide sleeve rod 728, and internal thread structures are installed and arranged inside the first guide sleeve rod 727 and the second guide sleeve rod 728. If it is to not affect the movement of the driving rod 723, the first guide sleeve rod 727 may not be provided with an internal thread structure.

[0061] Based on the previous embodiment, as Figure 6, the rotating member 71 includes a sleeve 711, a second gear 712, a transmission rod 713, a mounting head 714, a clamping block 715 and a limiting sleeve 716. The sleeve 711 is installed in the mounting housing 73. The second gear 712 is installed on the outer side of the sleeve 711. The transmission rod 713 is drivingly connected in the sleeve 711. One end of the transmission rod 713 is provided with a mounting head 714. The clamping blocks 715 are installed on the upper and lower sides of the outer end of the mounting head 714. The clamping blocks 715 are installed in the limiting grooves 757. One end of the limiting sleeve 716 is inserted into the end of the sleeve 711, and the transmission rod 713 passes through the limiting sleeve 716. The sleeve 711 is connected to an oil pump. After the first connecting block 751 drives the second connecting block 756 to move, the transmission rod 713 will be pulled out of the sleeve 711. Therefore, it is necessary for the oil pump to drive the transmission rod 713 to reset. Moreover, when processing narrow parts such as tires, because the pushing distance of the driving member 72 is limited, it is necessary to use the oil cylinder to drive the displacement of the transmission rod 713 to abut the second connecting block 756 against the workpiece. The second gear 712 is used to drive the rotating member 71 and the chuck 75 to rotate, and the limiting sleeve 716 is used to limit the translation of the transmission rod 713.

[0062] Based on the previous embodiment, as Figures 7 - 8 , the linkage assembly 8 includes a mounting block 81, a lifting rod 82, a driving rack 83 and a misaligned rack 84. The mounting block 81 is installed on the side wall of the hydraulic slider 9. The driving rack 83 is installed at the bottom of the mounting block 81. The lifting rods 82 are arranged in pairs and installed at the bottom of the mounting block 81. The lifting rods 82 are arranged inside the driving rack 83. The misaligned racks 84 are arranged in pairs and are respectively installed on the lifting rods 82. The misaligned racks 84 and the driving rack 83 are in meshing transmission with the clamping assembly 7. The mounting block 81 is used to connect the driving rack 83 and the lifting rod 82, and the driving rack 83 is used to drive the first gear 722 to rotate. For the two misaligned racks 84, one is respectively used to control the rotation of the rotating member 71 during the first clamping adjustment to perform the pre-processing position debugging, and the other misaligned rack 84 is used to drive the rotating member 71 to rotate during the processing, and then adjust the angle of the workpiece through the chuck 75 for continuous processing.

[0063] Based on the previous embodiment, as Figure 9 , the driving rack 83 and the lifting rod 82 are connected by a U-shaped block 85.

[0064] Based on the previous embodiment, as Figure 10 , a rotary forging workbench 11 is installed on the placing table 3, and an upper anvil 12 is installed on the bottom surface of the hydraulic slider 9.

[0065] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made thereto based on the present invention, which will be obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. A four-column free forging hydraulic press, characterized in that: include: A placement platform (6) having a hollow structure inside, wherein a main frame (2) is installed in the placement platform (6); The displacement rails (4) are arranged in pairs and are installed on the left and right surfaces of the bottom side of the main frame (2), the bottom ends of the displacement rails (4) are placed in the hollow structure, and the drive components are installed on the displacement rails (4); A storage platform (3) is drivingly connected to the bottom side of the main frame (2) and the displacement track (4), and one end of the driving component is against the side surface of the storage platform (3); A plurality of oil cylinders (10) are installed on the upper end of the main frame (2), the bottom of the oil cylinder (10) passes through the bottom surface of the main frame (2), the bottom of the oil cylinder (10) is connected to a hydraulic slide block (9), and the hydraulic slide block (9) is drivingly connected to the main frame (2); The return cylinders (5) are arranged in pairs and installed in the hollow structure, and the top ends of the return cylinders (5) are connected to the hydraulic slide block (9); Clamping assemblies (7), arranged in pairs and mounted on the upper surface of the bottom of the main frame (2); The linkage components (8) are arranged in pairs, the upper ends of which are connected to the sides of the hydraulic slide blocks (9), and the bottoms of the linkage components (8) are drivingly connected to the outer ends of the clamping components (7).

2. The four-column free forging hydraulic press according to claim 1, characterized in that: The clamping assembly (7) comprises: An installation shell (73) is provided with a lifting cylinder (74) at the bottom, and the bottom of the lifting cylinder (74) is installed on the upper surface of the bottom block of the main frame (2); The driving members (72) are arranged in pairs and installed in the installation shell (73), and the two ends of the driving members (72) pass through the side wall of the installation shell (73); A rotating member (71) is installed in the installation shell (73), two ends of the rotating member (71) pass through the side wall of the installation shell (73), and the rotating member (71) is arranged between the two driving members (72); One end of the chuck (75) is connected to the ends of the rotating member (71) and the driving member (72).

3. The four-column free forging hydraulic press according to claim 2, characterized in that: The chuck (75) comprises: A first connecting block (751) has a plug hole (752) on one end surface, the plug holes (752) are arranged in pairs, a limiting hole (753) is arranged on the side wall of the plug hole (752), and one end of the driving member (72) is inserted into the plug hole (752); A second connecting block (756) is provided with a concave structure (755) on one end surface, a through hole (754) is also provided in the first connecting block (751), the through hole (754) passes through the first connecting block (751), one end of the through hole (754) extends to the other end surface of the second connecting block (756), the through hole (754) is provided between the two insertion holes (752), and the end of the rotating member (71) is inserted into the through hole (754); The limiting grooves (757) are arranged in pairs and are opened in the second connecting block (756).

4. The four-column free forging hydraulic press according to claim 3, characterized in that: The driving member (72) comprises: A first guide sleeve rod (727) is installed in the installation housing (73), and a limit ring (726) is installed on the outer surface of the first guide sleeve rod (727); A second guide sleeve rod (728), one end of which is mounted in the mounting housing (73); the other end of the second guide sleeve rod (728) is connected to a rotating sleeve rod (729); a first gear (722) is mounted on the outer side of one end of the rotating sleeve rod (729); A driving rod (723) passes through the first guide sleeve (727) and the second guide sleeve (728); one end of the driving rod (723) is connected to a connector (725); a limiting ring (724) is installed on the outer side of the connector (725); the connecting head (725) is inserted into the insertion hole (752); the limiting ring (724) is set in the limiting hole (753); a limiting block (721) is installed at the other end of the driving rod (723); and an external thread structure is provided on the outer surface of the driving rod (723).

5. The four-column free forging hydraulic press according to claim 4, characterized in that: Limiting plates are installed on the outside of the first guide sleeve rod (727) and the second guide sleeve rod (728), and internal thread structures are installed inside the first guide sleeve rod (727) and the second guide sleeve rod (728).

6. The four-column free forging hydraulic press according to claim 3, characterized in that: The rotating member (71) comprises: A sleeve (711) is installed in the installation housing (73), and a second gear (712) is installed outside the sleeve (711); A transmission rod (713) is transmission-connected in the sleeve (711); a mounting head (714) is installed at one end of the transmission rod (713); clamping blocks (715) are installed at upper and lower sides of the outer end of the mounting head (714); and the clamping blocks (715) are installed in the limiting groove (757); A limiting sleeve (716) has one end inserted into the end of the sleeve (711), and the transmission rod (713) passes through the limiting sleeve (716).

7. The four-column free forging hydraulic press according to claim 1, characterized in that: The linkage component (8) comprises: A mounting block (81) mounted on a side wall of the hydraulic slide block (9); A driving rack (83) mounted on the bottom of the mounting block (81); Lifting rods (82) are arranged in pairs and installed at the bottom of the mounting block (81), and the lifting rods (82) are arranged on the inner side of the driving rack (83); The offset racks (84) are arranged in pairs and are respectively installed on the lifting rods (82). The offset racks (84) and the driving racks (83) are meshed with the clamping assembly (7) for transmission.

8. The four-column free forging hydraulic press according to claim 7, characterized in that: The driving rack (83) and the lifting rod (82) are connected via a U-shaped block (85).

9. The four-column free forging hydraulic press according to claim 1, characterized in that: A rotary forging workbench (11) is installed on the storage table (3), and an upper anvil (12) is installed on the bottom surface of the hydraulic slide block (9).

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