Moving table for internal high-pressure hydraulic machine

Abstract

The invention relates to the technical field of hydraulic machine moving tables, and discloses an internal high pressure hydraulic machine moving table which comprises a base, the top of the base is fixedly connected with a rack, and the rack comprises a lower cross beam fixed to the top of the base, a plurality of stand column rods fixed to the top of the lower cross beam and an upper cross beam fixed between the top ends of the stand column rods. A movable platform mechanism is arranged on the top of the lower beam. According to the moving table for the internal high-pressure hydraulic machine, through the arrangement of the jacking part in the jacking assembly, the moving table body located in the middle can be jacked and driven to form mold closing work, and the clamping part can be synchronously driven; according to the jacking device, the clamping piece is arranged on the movable table body, so that the clamping piece synchronously and automatically clamps the movable table body or a mold mounted at the top of the movable table body in the jacking process, the stability of the movable table body during jacking and mold closing is improved, the mold closing precision is improved, an electric driving source does not need to be additionally arranged for driving, and jacking driving force is effectively utilized.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic press moving platforms, in particular to a moving platform for an internal high-pressure hydraulic press. Background Art

[0002] The movable workbench of the hydraulic press is generally set up to facilitate loading and unloading of billets and replacement of molds. Most of the existing vertical internal high-pressure hydraulic presses adopt a movable workbench structure; the workbench is generally driven by a hydraulic cylinder and mechanically centered. The Chinese invention patent with publication number CN110756712B discloses a large-scale precision isothermal forging hydraulic press with a four-corner active leveling function. By setting up a movable table mechanism, the processing material can be quickly replaced, the processing speed is improved, and time is saved. The reverse thrust cylinder and four piston cylinders can ensure a greater output pressure, which increases the forging range and has a wide applicability. The support mechanism of the present invention replaces the original clamping mechanism, which can support a heavier forging slider and meet the needs of the development of existing forging product processes.

[0003] In the related art, in order to improve the convenience of loading and unloading materials and changing molds, the existing hydraulic press is equipped with a side-shifting mobile workbench for auxiliary operations. However, the existing hydraulic press mobile table has certain defects during use. For example, the invention patent with publication number CN110756712B further improves the material replacement efficiency by slidingly installing two mobile tables on a support plate through the alternation of the two mobile tables; however, the side-shifting drive of the two mobile tables is driven by two sets of independent driving mechanisms, which increases the cost of the mobile table, and the mobile table lacks synchronous tightening when being driven by jacking, thereby reducing the accuracy of subsequent mold closing. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a mobile platform for an internal high-pressure hydraulic press. Through the setting of a driving component, the two mobile platform bodies can be synchronously driven to move back and forth sideways, thereby facilitating the alternating conversion of the positions of the two mobile platform bodies; through the setting of a lifting part, not only can the mobile platform body located in the middle be lifted and driven to form a mold closing operation, but the clamping part can also be synchronously driven to realize automatic clamping of the mobile platform body or the mold installed on the top of the mobile platform body, thereby improving the stability of the mobile platform body during lifting and mold closing and the accuracy of mold closing, and solving the problem that the hydraulic press in the prior art cannot clamp the mobile platform during lifting movement, thereby causing deviation in the mold position after lifting, thereby affecting the subsequent mold closing accuracy.

[0005] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mobile platform for an internal high-pressure hydraulic press, comprising a base, the top of the base is fixedly connected to a frame, the frame comprises a lower crossbeam fixed to the top of the base, a plurality of column rods fixed to the top of the lower crossbeam, and an upper crossbeam fixed between the top ends of the plurality of column rods, the top of the lower crossbeam is provided with a mobile platform mechanism; The mobile platform mechanism comprises a mobile frame fixed to the top of the lower crossbeam, two mobile platform bodies are arranged inside the mobile frame, and a driving component for synchronously and laterally reciprocatingly driving the two mobile platform bodies is arranged inside the mobile frame; A lifting assembly for lifting the moving platform body in the middle is arranged inside the lower cross beam, and the lifting assembly includes a lifting member for lifting the moving platform body and a clamping member for clamping the moving platform body or a mold installed on the top of the moving platform body, and the lifting member is transmission-connected with the clamping member.

[0006] Preferably, the lifting member comprises a hydraulic cylinder fixed inside the lower cross beam, the telescopic end of the hydraulic cylinder extends to the inside of the moving frame, and the telescopic end of the hydraulic cylinder is fixedly connected to a U-shaped supporting bracket.

[0007] Preferably, the clamping member includes a U-shaped frame fixed on both sides of the U-shaped supporting frame, the two U-shaped frames are rotatably connected to the inside of two tilting frames, the tops of the two tilting frames are fixedly connected to clamping heads, the bottom ends of the two tilting frames are hinged to control frames, the bottom ends of the two control frames are hinged to sliding seats, the two sliding seats are connected to the inside of the lower beam, and the two tilting frames, the two control frames and the two sliding seats are symmetrical.

[0008] Preferably, a telescopic cover is provided at the bottom of the mobile platform body, an X-shaped frame is provided between the inside of the telescopic cover and the mobile platform body, connecting blocks are fixedly connected to both sides of the telescopic cover, positioning blocks are fixedly connected to both sides of the bottom of the mobile platform body, and positioning grooves for inserting positioning blocks are provided on both sides of the top of the U-shaped supporting frame.

[0009] Preferably, the driving assembly includes a screw rod rotatably connected to the inside of the moving frame and a guide rod fixed to the inside of the moving frame, the guide rod is slidingly connected to the inside of one of the connecting blocks, the screw rod is threadedly connected to the inside of the other connecting block, and a driving member for driving the screw rod in forward and reverse rotation is provided on one side of the moving frame.

[0010] Preferably, the driving member includes a variable frequency asynchronous motor fixed to one side of the moving frame and a first bevel gear fixed to one end of the screw rod, the output shaft of the variable frequency asynchronous motor is fixedly connected to the second bevel gear, and the outer surface of the first bevel gear is meshed with the outer surface of the second bevel gear.

[0011] Preferably, a threaded seat is fixedly connected to one side of the bottom of the telescopic cover, a bolt rod is threadedly connected to the inner side of the threaded seat, and one end of the bolt rod is rotatably connected to a positioning frame in contact with the side of the U-shaped support bracket.

[0012] Preferably, the lower cross beam is internally rotatably connected with a drive shaft, the outer surface of the drive shaft is provided with two symmetrical external threads, the drive shaft is connected to the internal threads of two sliding seats via the two external threads, the two sliding seats are both slidably connected to the interior of the lower cross beam, and one end of the drive shaft is fixedly connected to a drive handle.

[0013] (III) Beneficial effects Compared with the prior art, the present invention provides a mobile platform for an internal high-pressure hydraulic press, which has the following beneficial effects: 2. The present invention can position the movable platform body that is reset after lateral displacement by setting the positioning frame, which not only ensures the positioning effect between the movable platform body and the upper mold of the hydraulic press, but also effectively limits the movement of the movable platform body, improves the movement accuracy of the movable platform body, and further ensures the high accuracy of the mold closing position. The initial position of the positioning frame can be adjusted by rotating the bolt rod, which makes it easier to adjust the position according to the condition of the mold above the movable platform body, further improving its positioning effect.

[0014] 3. The present invention drives the driving shaft to rotate through the driving handle, and the rotation of the driving shaft can drive the two sliding seats to be driven relative to or apart through two sets of symmetrical external threads, so that the initial position and the inclination angle of the bottom ends of the two control frames can be adjusted, and then it is convenient to change the clamping force of the clamping head on the movable platform body or the mold through the lifting of the U-shaped support bracket in the lifting part, thereby meeting the adjustment of different clamping forces and improving the stability of the subsequent mold closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the combination of the middle and lower crossbeam and the moving frame; Figure 3 For the present invention Figure 2 Combined cross-sectional view of the middle and lower cross beam and the moving frame; Figure 4 For the present invention Figure 2 Schematic diagram of the cross section of the moving frame; Figure 5 For the present invention Figure 3 A schematic diagram of the assembly of the mobile station body; Figure 6 For the present invention Figure 5 A schematic cross-sectional view of a mobile station body; Figure 7 For the present invention Figure 3 Schematic diagram of the combination of the mobile platform body and the lifting assembly; Figure 8 For the present invention Figure 7 A combined stereogram of the moving platform body and the lifting assembly.

[0016] In the figure: 1. base; 2. Frame; 21. Lower beam; 22. Vertical column; 23. Upper beam; 3. Move the frame; 4. Mobile platform body; 41. Telescopic cover; 42. X-shaped frame; 43. Connecting block; 44. Positioning block; 45. Positioning groove; 46. Threaded seat; 47. Bolt rod; 48. Positioning frame; 5. driving assembly; 51. screw rod; 52. guide rod; 53. variable frequency asynchronous motor; 54. first bevel gear; 55. second bevel gear; 6. Lifting assembly; 61. Lifting member; 611. Hydraulic cylinder; 612. U-shaped support frame; 62. Clamping member; 621. U-shaped frame; 622. Tilt frame; 623. Clamping head; 624. Control frame; 625. Sliding seat; 626. Drive shaft; 627. External thread. DETAILED DESCRIPTION

[0017] 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.

[0018] Embodiment 1: Refer to the attached Figure 1-8 A mobile platform for an internal high-pressure hydraulic press comprises a base 1, the top of the base 1 is fixedly connected to a frame 2, the frame 2 comprises a lower crossbeam 21 fixed to the top of the base 1, a plurality of column rods 22 fixed to the top of the lower crossbeam 21, and an upper crossbeam 23 fixed between the tops of the plurality of column rods 22, and a mobile platform mechanism is arranged on the top of the lower crossbeam 21; The mobile platform mechanism includes a mobile frame 3 fixed to the top of the lower cross beam 21, two mobile platform bodies 4 are arranged inside the mobile frame 3, and a driving assembly 5 for synchronously and laterally reciprocatingly driving the two mobile platform bodies 4 is arranged inside the mobile frame 3; By setting up the two moving platform bodies 4, when the hydraulic press is processing a workpiece on one of the moving platform bodies 4, the staff can synchronously pick up and place the workpiece on the other moving platform body 4, thereby improving the working efficiency of the high-pressure hydraulic press therein. By setting up the driving assembly 5, the two moving platform bodies 4 can be synchronously driven to move back and forth sideways, thereby facilitating the alternating conversion of the positions of the two moving platform bodies 4, without the need to additionally set up multiple electric drive sources for driving, thereby improving the convenience of the alternating conversion of the moving platform bodies 4 and the energy-saving and environmental protection of the moving platform mechanism; A lifting assembly 6 for lifting the moving platform body 4 in the middle is arranged inside the lower cross beam 21. The lifting assembly 6 includes a lifting member 61 for lifting the moving platform body 4 and a clamping member 62 for clamping the moving platform body 4 or a mold installed on the top of the moving platform body 4. The lifting member 61 is transmission-connected with the clamping member 62. By setting the lifting member 61 in the lifting assembly 6, not only can the moving platform body 4 located in the middle be lifted and driven to form a mold closing operation, but the clamping member 62 can also be driven synchronously, so that the clamping member 62 can automatically clamp the moving platform body 4 during the lifting process or the mold installed on the top of the moving platform body 4, thereby improving the stability of the moving platform body 4 during the lifting and mold closing, and improving the mold closing accuracy. There is no need to set up an additional electric drive source for driving, and the lifting driving force is effectively utilized, which solves the problem that the hydraulic press in the prior art cannot clamp the moving platform during the lifting movement, thereby causing the mold position after lifting to deviate, thereby affecting the subsequent mold closing accuracy.

[0019] Refer to the attached Figure 5 , Figure 7 and Figure 8 The lifting member 61 includes a hydraulic cylinder 611 fixed inside the lower cross beam 21, the telescopic end of the hydraulic cylinder 611 extends to the inside of the moving frame 3, and the telescopic end of the hydraulic cylinder 611 is fixedly connected to a U-shaped support bracket 612; The hydraulic cylinder 611 is connected to an external power supply and control system, and is used to drive the U-shaped support frame 612 to move up and down. Through the up and down movement of the U-shaped support frame 612, the movable platform body 4 located above can be lifted and driven to form a mold closing operation. The number of hydraulic cylinders 611 can be set according to the actual products produced by the internal high-pressure hydraulic press.

[0020] Refer to the attached Figure 7 and Figure 8The clamping member 62 includes a U-shaped frame 621 fixed to both sides of the U-shaped support frame 612, the two U-shaped frames 621 are rotatably connected to two tilting frames 622, the tops of the two tilting frames 622 are fixedly connected to a clamping head 623, the bottom ends of the two tilting frames 622 are hinged to a control frame 624, the bottom ends of the two control frames 624 are hinged to a sliding seat 625, the two sliding seats 625 are connected to the inside of the lower cross beam 21, and the two tilting frames 622, the two control frames 624 and the two sliding seats 625 are symmetrical; The up and down movement of the U-shaped support frame 612 can drive the two U-shaped frames 621 to move up and down, and indirectly drive the two tilting frames 622 and the two clamping heads 623 to move; The bottoms of the two tilting frames 622 are hinged with the control frames 624, and the bottoms of the two control frames 624 are hinged with the inner bottom of the lower cross beam 21 through the sliding seats 625, so that when the two tilting frames 622 are lifted upward, the tilting frames 622 and the control frames 624 connected to each other can move from a bent state to a straight state, and indirectly the two clamping heads 623 can move in relative directions, so as to tighten and clamp the moving platform body 4 or the mold installed above the moving platform body 4, and ensure the accuracy of the lifting and mold closing; The two clamping heads 623 and the moving platform body 4 are at the same horizontal line, so that the moving platform body 4 can be self-clamped by moving the two clamping heads 623 in relative directions. The two clamping heads 623 are at the same horizontal line with the mold installed above the moving platform body 4, so that the mold installed above the moving platform body 4 can be self-clamped by moving the two clamping heads 623 in relative directions. The specific position of the clamping head 623 can be installed according to actual conditions, or the height of the clamping head 623 can be adjusted by using a height-adjustable adjusting member, such as a threaded rod adjustment method.

[0021] Refer to the attached Figures 5 to 8 A telescopic cover 41 is provided at the bottom of the mobile platform body 4, an X-shaped frame 42 is provided between the inside of the telescopic cover 41 and the mobile platform body 4, connecting blocks 43 are fixedly connected to both sides of the telescopic cover 41, positioning blocks 44 are fixedly connected to both sides of the bottom of the mobile platform body 4, and positioning grooves 45 for inserting the positioning blocks 44 are provided on both sides of the top of the U-shaped support bracket 612; The X-shaped frame 42 adopts an X-shaped telescopic frame in the prior art, which not only ensures that the movable platform body 4 can stably lift and move, but also ensures its stability during the lifting and moving process; The positioning block 44 is arranged to be inserted into the positioning groove 45 at the top of the U-shaped support bracket 612, thereby ensuring the stability of the U-shaped support bracket 612 when supporting the movable platform body 4, and further improving the accuracy of the subsequent mold closing.

[0022] Refer to the attached Figure 4 The driving assembly 5 includes a screw rod 51 rotatably connected to the inside of the moving frame 3 and a guide rod 52 fixed to the inside of the moving frame 3. The guide rod 52 is slidably connected to the inside of one of the connecting blocks 43, and the screw rod 51 is threadedly connected to the inside of the other connecting block 43. A driving member for driving the screw rod 51 to rotate forward and reverse is provided on one side of the moving frame 3; The drive member is used to drive the screw rod 51 to rotate forward and reverse, and includes a forward and reverse motor; through the rotation of the screw rod 51, one of the connecting blocks 43 of the mobile platform body 4 can be driven to move back and forth through a threaded manner, thereby realizing the reciprocating side movement of the mobile platform body 4; The guide rod 52 is installed inside the moving frame 3 and is slidably connected to the inside of one of the connecting blocks 43, thereby ensuring the smoothness and stability of the reciprocating lateral movement of the moving platform body 4.

[0023] Refer to the attached Figure 4 The driving member includes a variable frequency asynchronous motor 53 fixed to one side of the moving frame 3 and a first bevel gear 54 fixed to one end of the screw rod 51. The output shaft of the variable frequency asynchronous motor 53 is fixedly connected to a second bevel gear 55. The outer surface of the first bevel gear 54 meshes with the outer surface of the second bevel gear 55. The variable frequency asynchronous motor 53 adopts a combination of a frequency converter and an asynchronous motor, is connected to an external power supply and control system, and is set using the connection method and encoding method of the prior art. It is used to rotate the second bevel gear 55, and then can drive the first bevel gear 54 to rotate through engagement. The rotation of the first bevel gear 54 can drive the screw rod 51 to rotate, thereby forming a lateral shift of the mobile platform body 4.

[0024] Embodiment 2: Based on embodiment 1, the difference is that; Refer to the attached Figure 6 A threaded seat 46 is fixedly connected to one side of the bottom of the telescopic cover 41, a bolt rod 47 is threadedly connected to the inner side of the threaded seat 46, and one end of the bolt rod 47 is rotatably connected to a positioning frame 48 in contact with the side of the U-shaped support bracket 612; By setting the positioning frame 48, the movable platform body 4 that is reset after lateral displacement can be positioned, which not only ensures the positioning effect between the movable platform body 4 and the upper mold of the hydraulic press, but also effectively limits the movement of the movable platform body 4, improves the movement accuracy of the movable platform body 4, and thus ensures the high accuracy of the mold closing position. By rotating the bolt rod 47, the initial position of the positioning frame 48 can be adjusted, which makes it easier to adjust the position according to the mold situation above the movable platform body 4, further improving its positioning effect.

[0025] Embodiment 3: Based on embodiment 1, the difference is that; Refer to the attached Figure 8 The lower cross beam 21 is internally rotatably connected with a driving shaft 626, and the outer surface of the driving shaft 626 is provided with two symmetrical external threads 627. The driving shaft 626 is connected to the internal threads of the two sliding seats 625 through the two external threads 627. The two sliding seats 625 are both slidably connected to the interior of the lower cross beam 21, and one end of the driving shaft 626 is fixedly connected to a driving handle; By rotating the driving handle, the driving shaft 626 can be driven to rotate, and the rotation of the driving shaft 626 can drive the two sliding seats 625 to be driven relative to or apart through two sets of symmetrical external threads 627, so that the initial position and the tilt angle of the bottom end of the two control frames 624 can be adjusted, and then it is convenient to change the clamping force of the clamping head 623 on the movable table body 4 or the mold by lifting the U-shaped support bracket 612 in the lifting member 61, thereby meeting the adjustment of different clamping forces and improving the stability of the subsequent mold closing.

[0026] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0027] 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 mobile platform for an internal high-pressure hydraulic press, comprising a base (1), the top of the base (1) being fixedly connected to a frame (2), the frame (2) comprising a lower crossbeam (21) fixed to the top of the base (1), a plurality of upright posts (22) fixed to the top of the lower crossbeam (21), and an upper crossbeam (23) fixed between the tops of the plurality of upright posts (22), characterized in that: A moving platform mechanism is provided on the top of the lower cross beam (21); The mobile platform mechanism comprises a mobile frame (3) fixed to the top of the lower crossbeam (21), two mobile platform bodies (4) are arranged inside the mobile frame (3), and a driving component (5) for synchronously and laterally reciprocatingly driving the two mobile platform bodies (4) is arranged inside the mobile frame (3); A lifting assembly (6) for lifting the moving platform body (4) in the middle is arranged inside the lower cross beam (21); the lifting assembly (6) comprises a lifting member (61) for lifting the moving platform body (4) and a clamping member (62) for clamping the moving platform body (4) or a mold installed on the top of the moving platform body (4); the lifting member (61) is in transmission connection with the clamping member (62).

2. The mobile platform for an internal high-pressure hydraulic press according to claim 1, characterized in that: The lifting member (61) comprises a hydraulic cylinder (611) fixed inside the lower cross beam (21), the telescopic end of the hydraulic cylinder (611) extending into the interior of the moving frame (3), and the telescopic end of the hydraulic cylinder (611) is fixedly connected to a U-shaped support bracket (612).

3. The mobile platform for an internal high-pressure hydraulic press according to claim 2, characterized in that: The clamping member (62) comprises a U-shaped frame (621) fixed on both sides of the U-shaped support frame (612); the two U-shaped frames (621) are rotatably connected to the inside of two tilting frames (622); the top ends of the two tilting frames (622) are fixedly connected to a clamping head (623); the bottom ends of the two tilting frames (622) are hinged to a control frame (624); the bottom ends of the two control frames (624) are hinged to a sliding seat (625); the two sliding seats (625) are connected to the inside of the lower crossbeam (21); and the two tilting frames (622), the two control frames (624) and the two sliding seats (625) are symmetrical.

4. The mobile platform for an internal high-pressure hydraulic press according to claim 1, characterized in that: A telescopic cover (41) is provided at the bottom of the mobile platform body (4), an X-shaped frame (42) is provided between the interior of the telescopic cover (41) and the mobile platform body (4), connecting blocks (43) are fixedly connected to both sides of the telescopic cover (41), positioning blocks (44) are fixedly connected to both sides of the bottom of the mobile platform body (4), and positioning grooves (45) for inserting the positioning blocks (44) are provided on both sides of the top of the U-shaped support frame (612).

5. The mobile platform for an internal high-pressure hydraulic press according to claim 4, characterized in that: The driving assembly (5) comprises a screw rod (51) rotatably connected to the interior of the moving frame (3) and a guide rod (52) fixed to the interior of the moving frame (3); the guide rod (52) is slidably connected to the interior of one of the connecting blocks (43); the screw rod (51) is threadedly connected to the interior of the other connecting block (43); and a driving member for driving the screw rod (51) to rotate forward and reverse is provided on one side of the moving frame (3).

6. The mobile platform for an internal high-pressure hydraulic press according to claim 5, characterized in that: The driving member comprises a variable frequency asynchronous motor (53) fixed to one side of the moving frame (3) and a first bevel gear (54) fixed to one end of the screw rod (51); an output shaft of the variable frequency asynchronous motor (53) is fixedly connected to a second bevel gear (55); an outer surface of the first bevel gear (54) meshes with an outer surface of the second bevel gear (55).

7. The mobile platform for an internal high-pressure hydraulic press according to claim 4, characterized in that: A threaded seat (46) is fixedly connected to one side of the bottom of the telescopic cover (41), a bolt rod (47) is internally threadedly connected to the threaded seat (46), and one end of the bolt rod (47) is rotatably connected to a positioning frame (48) in contact with the side of the U-shaped support bracket (612).

8. The mobile platform for an internal high-pressure hydraulic press according to claim 3, characterized in that: The lower cross beam (21) is internally rotatably connected to a driving shaft (626); the outer surface of the driving shaft (626) is provided with two symmetrical external threads (627); the driving shaft (626) is connected to the internal threads of two sliding seats (625) via the two external threads (627); the two sliding seats (625) are both slidably connected to the interior of the lower cross beam (21); one end of the driving shaft (626) is fixedly connected to a driving handle.

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