Internal high pressure forging device for lightweight structural parts

Abstract

The present invention relates to the field of internal high-pressure forging technology, and discloses an internal high-pressure forging device for lightweight structural parts, including a frame, a hydraulic press, a mobile frame, an upper die, a lower die, a workbench and two tracks. The workbench is arranged above the two tracks. The workbench is a hollow structure. A lifting frame is arranged inside the workbench. A driving mechanism is installed on the lifting frame. The driving mechanism contacts the two tracks to drive the workbench to move on the tracks. A plurality of rectangular openings are provided at the bottom of the workbench. A fixing mechanism is installed in each of the plurality of rectangular openings. The fixing mechanism is connected to one side of the lifting frame through two pull rods. The fixing mechanism fixes the workbench by clamping the track. An opening is provided at the upper end of the workbench. The internal high-pressure forging device for lightweight structural parts can facilitate loading and unloading of materials and replacement of dies by moving the workbench, and can also accurately reset after moving, so as to facilitate operation by technicians.

Description

Technical Field

[0001] The invention relates to the technical field of internal high pressure forging, in particular to an internal high pressure forging device for a lightweight structural part. Background Art

[0002] The main method of producing lightweight structural forging is to use lightweight and high-strength materials to manufacture lightweight structures with reasonable geometric shapes. High pressure forming is an advanced forming technology for manufacturing hollow lightweight components developed under this background and has been used more and more widely. At present, the main way to form high-strength steel hollow structural pipes is high pressure forming technology. In the production process of high pressure forming, the most critical part is forming. In the forming process, it is difficult to form complex cross-section pipes in one time, and it is easy to cause more quality problems. In the actual production process, the pre-forming process is first used to use a lower pressure to achieve the initial shape, and then the liquid medium is injected from both ends. At the same time, according to the pre-set loading curve, the internal pressure and axial force load are loaded. The perfect cooperation of the horizontal hydraulic cylinder and the supercharger is required, so that the multi-section complex pipes can be perfectly fitted with the mold, so that the workpiece can achieve a fast, efficient and high-quality forming production process along the established forming structure during the secondary high pressure forming process.

[0003] At present, due to the small gap between the upper die and the lower die of the internal high-pressure forging equipment, and only relative displacement can occur between the two, it is inconvenient to load and unload the workpiece after processing, and it is also difficult to replace the mold hoisting, which is inconvenient for technicians to operate. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides an internal high-pressure forging device for lightweight structural parts, which solves the problem that the gap between the workpiece and the mold is small, and only relative displacement can occur between the two, which makes it inconvenient to load and unload the workpiece after processing, and it is also difficult to replace the mold and lift it, making it inconvenient for technicians to operate.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an internal high-pressure forging device for lightweight structural parts, comprising a frame, a hydraulic press, a mobile frame, an upper die, a lower die, a workbench and two tracks, wherein the workbench is arranged above the two tracks, the workbench is a hollow structure, a lifting frame is arranged inside the workbench, and a driving mechanism is installed on the lifting frame;

[0008] The driving mechanism is in contact with the two rails to drive the workbench to move on the rails;

[0009] A plurality of rectangular openings are provided at the bottom of the workbench, and a fixing mechanism is installed in each of the plurality of rectangular openings. The fixing mechanism is connected to one side of the lifting frame through two pull rods, and the fixing mechanism fixes the workbench by clamping the rails;

[0010] The upper end of the workbench is provided with an opening, and a top plate is fixedly connected to the opening, the upper end of the top plate and the lower end of the mobile frame are fixedly connected to a fixed plate, and a plurality of evenly distributed T-shaped slots are provided on opposite sides of the two fixed plates, and the fixed plates are connected to a fixing assembly through the T-shaped slots;

[0011] The upper die and the lower die are respectively connected to two fixed plates through fixing components.

[0012] Preferably, the driving mechanism comprises a main shaft and a transverse shaft, the main shaft and the transverse shaft are rotatably connected to the lifting frame through ball bearings, both ends of the main shaft and the transverse shaft are fixedly connected with driving wheels, the side wall of the workbench is provided with a plurality of strip openings matching with the driving wheels, one side of the driving wheel passes through the strip openings and contacts with the upper end of the track, one side of the lifting frame is fixedly connected with a reduction motor, and the output end of the reduction motor is fixedly connected with the main shaft coaxially;

[0013] One side of the lifting frame is rotatably connected to a connecting shaft through a bearing seat, and both ends of the connecting shaft are fixedly connected to first bevel gears, one of the first bevel gears is meshed with a second bevel gear, and the other first bevel gear is meshed with a third bevel gear, the second bevel gear is fixedly connected to the shaft wall of the main shaft, and the third bevel gear is fixedly connected to the shaft wall of the horizontal shaft.

[0014] Preferably, the side wall of the driving wheel is fixedly connected with a gear ring via an annular groove, the upper end of the track is fixedly connected with a rack via a groove, the edge of the driving wheel contacts the upper end of the track, and the gear ring meshes with the rack.

[0015] Preferably, the fixing mechanism comprises a transmission shaft, the transmission shaft is rotatably connected to the bottom inner wall of the workbench through two bearing seats, the rectangular opening is provided with a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are both sleeved with two guide rods through guide holes, the two guide rods are both fixed in the rectangular opening, one side of the first clamping plate is fixedly connected to two rectangular rods, the second clamping plate is sleeved with the two rectangular rods through a square hole, one end of the rectangular rod is fixedly connected to a brake plate, a plurality of brake blocks are provided between the brake plate and the second clamping plate, and the plurality of brake blocks are all fixed on the shaft wall of the transmission shaft;

[0016] Both ends of the transmission shaft are fixedly connected with support arms, one end of the support arm is rotatably connected to one end of the pull rod through a rotating shaft, and one end of the pull rod away from the support arm is rotatably connected to one side of the lifting frame through a hinge seat.

[0017] Preferably, the side wall of the lifting frame is fixedly connected to a plurality of hydraulic cylinders via a bracket, and the output ends of the plurality of hydraulic cylinders are fixedly connected to a support, and the support is fixed on the inner side of the workbench.

[0018] Preferably, the side wall of the lifting frame is fixedly connected with a guide tube, a guide column is sleeved in the guide tube, the guide column is fixed between the top plate and the bottom inner wall of the workbench, and a plurality of limit bars are fixedly connected in the workbench, and the plurality of limit bars are in contact with the side wall of the lifting frame.

[0019] Preferably, the fixing assembly includes a base plate, the lower end of the base plate is fixedly connected to a T-shaped block, the T-shaped block is slidably connected in the T-shaped slot, the lower end of the base plate is provided with a fixing block, the fixing block is slidably connected in the T-shaped slot and fixedly connected with two bolts, the side wall of the base plate is sleeved with the bolts through a circular hole, the bolts are connected with nuts, the upper end of the base plate is fixedly connected to two side plates, a rectangular block is provided between the two side plates, the side walls of the rectangular block are sleeved with two screws through through holes, the lower ends of the two screws are fixed to the upper end of the base plate, nuts are connected to the rod walls of the screws, the side walls of the rectangular block are fixedly connected to a rib plate, and one side of the rib plate is fixedly connected to a pressure plate.

[0020] Preferably, a slot is provided on one side opposite to the two side panels, a limiting plate is fixedly connected to one side of the rectangular block, the edge of the limiting plate is clamped in the slot, and right-angle notches are provided at the corners of the rectangular block, which cooperate with the edge of the slot.

[0021] Preferably, a rectangular groove is provided on one side of the rectangular block, a top block is sleeved in the rectangular groove, a top rod is fixedly connected to one side of the top block, one side of the rectangular groove is sleeved with the top rod through a square hole, two screw rods are fixedly connected to one side of the rectangular block, a thrust plate is commonly connected to the rod walls of the two screw rods, the thrust plate is sleeved with the screw rod through an assembly hole, a locking nut is threadedly connected to the rod wall of the screw rod, a positioning hole is provided on the side wall of the thrust plate, a positioning block is fixedly connected to one end of the top rod, and the positioning block matches the positioning hole.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present invention provides an internal high pressure forging device for lightweight structural parts, which has the following beneficial effects:

[0024] 1. The upper end of the track is designed to be at the same level as the ground. After the forging of the workpiece is completed, the lifting frame lifts the workbench off the ground. At this time, the driving mechanism contacts the track. After starting, the workbench can be driven to move away from the bottom of the frame along the guide rail. At this time, the formed workpiece can be removed and the mold can be replaced conveniently. When replacing the mold, the upper mold and the lower mold can be aligned and buckled first, and the lower mold can be fixed with a fixing component first. Then, the driving mechanism is started to move the workbench and the upper and lower molds together to the bottom of the frame and the hydraulic press. At this time, the hydraulic press is started to push the mobile frame to contact the top of the upper mold, and the upper mold is fixed to the fixed plate under the mobile frame with a fixing component. In this way, the internal high-pressure forging machine can be convenient for loading and unloading workpieces and replacing molds.

[0025] 2. The present invention drives the main shaft through a reduction motor to rotate the second bevel gear, and the rotation of the second bevel gear drives one of the first bevel gears to rotate the connecting shaft, and the rotation of the connecting shaft drives another first bevel gear to rotate the third bevel gear. When the number of teeth of the first bevel gear, the second bevel gear and the third bevel gear are the same, the rotation speeds of the main shaft, the horizontal shaft and the connecting shaft are the same, so that the rotation speeds of the four driving wheels can be the same, so that the workbench can move smoothly on the track, which is convenient for loading and unloading workpieces and replacing molds.

[0026] 3. The hydraulic cylinder is used to push the lifting frame upward. When the lifting frame moves, it drives the driving mechanism to move upward and separate from the track. At this time, the workbench moves downward relatively and contacts the ground. At the same time, when the lifting frame moves, it drives the pull rod to make the support arm swing. When the support arm swings, it drives the transmission shaft to make the brake block swing. The brake block swings and squeezes the brake plate and the second clamping plate. When the brake plate moves, it pulls the rectangular rod to move the first clamping plate. At the same time, the second clamping plate moves due to the squeezing force, so that the first clamping plate and the second clamping plate move relative to each other and clamp the two sides of the track together. In this way, the workbench can be locked and fixed when it stops moving, which is convenient for taking and placing workpieces and changing molds, so that the workbench will not move when it is subjected to force, thereby ensuring the accuracy of the reciprocating movement of the workbench.

[0027] 4. Put the T-block and the fixed block into two adjacent T-slots respectively, push the fixed assembly to the appropriate position, tighten the nut first so that the bolt drives the fixed block to squeeze the T-slot, then tighten the locking nut to squeeze the thrust plate, the thrust plate moves to push the ejector rod to make the ejector block squeeze the mold, at this time, you can use multiple ejector blocks to adjust the position of the mold, then press the pressure plate against the mold and tighten the nut, move the nut down to press the rectangular block to move the rib plate and the pressure plate down, and move the pressure plate down to press the mold, so that the mold can be pressed, fixed and adjusted conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of an internal high-pressure forging device for a lightweight structural part proposed by the present invention;

[0029] Figure 2A schematic diagram of the internal structure of a workbench in an internal high-pressure forging device for a lightweight structural part proposed by the present invention;

[0030] Figure 3 A schematic diagram of the structure of a driving mechanism and a fixing mechanism in an internal high-pressure forging device for a lightweight structural part proposed by the present invention;

[0031] Figure 4 A schematic diagram of the structure of a fixing mechanism in an internal high pressure forging device for a lightweight structural part proposed by the present invention Figure 1 ;

[0032] Figure 5 A schematic diagram of the structure of a fixing mechanism in an internal high pressure forging device for a lightweight structural part proposed by the present invention Figure 2 ;

[0033] Figure 6 This is a schematic structural diagram of a first clamping plate and a second clamping plate in an internal high pressure forging device for a lightweight structural part proposed by the present invention;

[0034] Figure 7 This is a schematic structural diagram of a pull rod, a support arm, a transmission shaft and a brake block in an internal high-pressure forging device for a lightweight structural part proposed by the present invention;

[0035] Figure 8 A schematic diagram of the structure of a fixing assembly in an internal high pressure forging device for a lightweight structural part proposed by the present invention Figure 1 ;

[0036] Fig. 9 A schematic diagram of the structure of a fixing assembly in an internal high pressure forging device for a lightweight structural part proposed by the present invention Figure 2 .

[0037] In the figure: 1, workbench; 2, track; 3, frame; 4, lower die; 5, upper die; 6, mobile frame; 7, hydraulic press; 8, fixed plate; 9, driving wheel; 10, guide tube; 11, gear ring; 12, guide column; 13, hydraulic cylinder; 14, guide rod; 15, first clamping plate; 16, second clamping plate; 17, brake block; 18, pull rod; 19, brake plate; 20, support arm; 21, pressure plate; 22, rib plate; 23, limit plate; 24 , screw; 25, thrust plate; 26, lead screw; 27, rectangular block; 28, side plate; 29, bottom plate; 30, top block; 31, limit strip; 32, lifting frame; 33, rack; 34, first bevel gear; 35, third bevel gear; 36, connecting shaft; 37, second bevel gear; 38, reduction motor; 39, main shaft; 40, horizontal axis; 41, rectangular rod; 42, transmission shaft; 43, fixed block; 44, T-block; 45, slot. DETAILED DESCRIPTION

[0038] 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.

[0039] Embodiment 1: refer to the attached Figure 1-9 ,An internal high-pressure forging device for lightweight structural parts, including a frame 3, a hydraulic press 7, a moving frame 6, an upper die 5, a lower die 4, a workbench 1 and two tracks 2, the workbench 1 is arranged above the two tracks 2, the workbench 1 is a hollow structure, a lifting frame 32 is arranged inside the workbench 1, a driving mechanism is installed on the lifting frame 32, the driving mechanism is in contact with the two tracks 2 for driving the workbench 1 to move on the track 2, a guide tube 10 is fixedly connected to the side wall of the lifting frame 32, a guide column 12 is sleeved in the guide tube 10, the guide column 12 is fixed between the top plate and the bottom inner wall of the workbench 1, a plurality of limit bars 31 are fixedly connected to the workbench 1, and the plurality of limit bars 31 are all in contact with the side wall of the lifting frame 32, a plurality of hydraulic cylinders 13 are fixedly connected to the side wall of the lifting frame 32 through a bracket, and the output ends of the plurality of hydraulic cylinders 13 are fixedly connected to a support, and the support is fixed to the inner side of the workbench 1;

[0040] A plurality of rectangular openings are provided at the bottom of the workbench 1, and a fixing mechanism is installed in each of the plurality of rectangular openings. The fixing mechanism is connected to one side of the lifting frame 32 through two pull rods 18, and the fixing mechanism fixes the workbench 1 through a clamping rail 2. An opening is provided at the upper end of the workbench 1, and a top plate is fixedly connected to the opening. A fixing plate 8 is fixedly connected to the upper end of the top plate and the lower end of the movable frame 6. A plurality of evenly distributed T-slots are provided on opposite sides of the two fixing plates 8, and the fixing plates 8 are connected to fixing components through T-slots. The upper mold 5 and the lower mold 4 are respectively connected to the two fixing plates 8 through fixing components.

[0041] When the present invention is in use, the upper end of the track 2 is in the same horizontal plane with the ground during installation. After the forging of the workpiece is completed, the lifting frame 32 lifts the workbench 1 off the ground. At this time, the driving mechanism contacts the track 2. After starting, the workbench 1 can be driven to move away from the bottom of the frame 3 along the guide rail. At this time, the formed workpiece can be removed and the mold can be replaced conveniently. When replacing the mold, the upper mold 5 and the lower mold 4 can be aligned and snapped together first, and the lower mold 4 is fixed with a fixing assembly first. Then, the driving mechanism is started to move the workbench 1, the upper mold 5 and the lower mold 4 together to the bottom of the frame 3 and the hydraulic press 7. At this time, the hydraulic press 7 is started to push the moving frame 6 to contact the top of the upper mold 5, and the upper mold 5 is fixed to the fixed plate 8 under the moving frame 6 with a fixing assembly. In this way, the internal high-pressure forging machine can be convenient for loading and unloading workpieces and replacing molds.

[0042] Embodiment 2: Based on embodiment 1, the difference is that;

[0043] See attached Figure 2-3 The driving mechanism includes a main shaft 39 and a transverse shaft 40, both of which are rotatably connected to the lifting frame 32 through ball bearings. Both ends of the main shaft 39 and the transverse shaft 40 are fixedly connected with driving wheels 9. The side wall of the workbench 1 is provided with a plurality of strip openings that match the driving wheels 9. One side of the driving wheel 9 passes through the strip openings and contacts the upper end of the track 2. The side wall of the driving wheel 9 is fixedly connected with a gear ring 11 through an annular groove. The upper end of the track 2 is fixedly connected with a rack 33 through a groove. The edge of the driving wheel 9 contacts the upper end of the track 2, and the gear ring 11 meshes with the rack 33. A reduction motor 38 is fixedly connected to one side of the lifting frame 32, and the output end of the reduction motor 38 is fixedly connected to the main shaft 39 coaxially;

[0044] One side of the lifting frame 32 is rotatably connected to a connecting shaft 36 through a bearing seat, and both ends of the connecting shaft 36 are fixedly connected to first bevel gears 34, one of the first bevel gears 34 is meshed with a second bevel gear 37, and the other first bevel gear 34 is meshed with a third bevel gear 35, the second bevel gear 37 is fixedly connected to the shaft wall of the main shaft 39, and the third bevel gear 35 is fixedly connected to the shaft wall of the horizontal shaft 40.

[0045] The present invention is provided with a driving mechanism, which drives the main shaft 39 to rotate the second bevel gear 37 through the reduction motor 38. The rotation of the second bevel gear 37 drives one of the first bevel gears 34 to rotate the connecting shaft 36. The rotation of the connecting shaft 36 drives the other first bevel gear 34 to rotate the third bevel gear 35. When the number of teeth of the first bevel gear 34, the second bevel gear 37 and the third bevel gear 35 are the same, the rotation speed of the main shaft 39, the cross shaft 40 and the connecting shaft 36 are the same. In this way, the rotation speed of the four driving wheels 9 can be the same, so that the workbench 1 can move smoothly on the track 2, which is convenient for loading and unloading workpieces and replacing molds.

[0046] Embodiment 3: Based on embodiment 1, the difference is that;

[0047] See attached Figure 4-7 The fixing mechanism includes a transmission shaft 42, which is rotatably connected to the bottom inner wall of the workbench 1 through two bearing seats. The rectangular opening is provided with a first clamping plate 15 and a second clamping plate 16. The first clamping plate 15 and the second clamping plate 16 are both sleeved with two guide rods 14 through guide holes. The two guide rods 14 are both fixed in the rectangular opening. One side of the first clamping plate 15 is fixedly connected to two rectangular rods 41. The second clamping plate 16 is sleeved with the two rectangular rods 41 through a square hole. One end of the rectangular rod 41 is fixedly connected to a brake plate 19. A plurality of brake blocks 17 are provided between the brake plate 19 and the second clamping plate 16. The plurality of brake blocks 17 are all fixed on the shaft wall of the transmission shaft 42.

[0048] Both ends of the transmission shaft 42 are fixedly connected to the support arm 20, one end of the support arm 20 is rotatably connected to one end of the pull rod 18 through a rotating shaft, and the end of the pull rod 18 away from the support arm 20 is rotatably connected to one side of the lifting frame 32 through a hinge seat, such as Figure 6 As shown in the dotted line portion, the power assembly consisting of the pull rod 18, the support arm 20, the transmission shaft 42 and the brake block 17 can be replaced by a small hydraulic cylinder.

[0049] The fixing mechanism provided in the present invention pushes the lifting frame 32 to move upward through the operation of the hydraulic cylinder 13. When the lifting frame 32 moves, it drives the driving mechanism to move upward and separate from the track 2. At this time, the workbench 1 moves downward relatively and contacts the ground. At the same time, when the lifting frame 32 moves, it drives the pull rod 18 to make the support arm 20 swing. When the support arm 20 swings, it drives the transmission shaft 42 to make the brake block 17 swing. The brake block 17 swings and squeezes the brake plate 19 and the second clamping plate 16. When the brake plate 19 moves, it pulls the rectangular rod 41 to move the first clamping plate 15. At the same time, the second clamping plate 16 moves under the squeezing force, thereby making the first clamping plate 15 and the second clamping plate 16 move relative to each other and clamp the two sides of the track 2 together. In this way, the workbench 1 can be locked and fixed when it stops moving, which is convenient for taking and placing workpieces and changing molds, so that the workbench 1 will not move when subjected to force, thereby ensuring the accuracy of the workbench 1 when it reciprocates.

[0050] Embodiment 4: Based on embodiment 1, the difference is that;

[0051] See attached Figure 8-9 The fixing assembly includes a bottom plate 29, a T-shaped block 44 is fixedly connected to the lower end of the bottom plate 29, and the T-shaped block 44 is slidably connected in the T-shaped groove. A fixing block 43 is provided at the lower end of the bottom plate 29, and the fixing block 43 is slidably connected in the T-shaped groove and fixedly connected with two bolts. The side wall of the bottom plate 29 is sleeved with the bolts through a circular hole, and a nut is connected to the bolt. The upper end of the bottom plate 29 is fixedly connected to two side plates 28, and a rectangular block 27 is provided between the two side plates 28. The side wall of the rectangular block 27 is sleeved with two screw rods 24 through a through hole. The lower ends of the two screw rods 24 are fixed to the upper end of the bottom plate 29, and a nut is connected to the rod wall of the screw rod 24. The side wall of the rectangular block 27 is fixedly connected to the rib plate 22, and one side of the rib plate 22 is fixed. A pressure plate 21 is fixedly connected, a rectangular groove is provided on one side of the rectangular block 27, a top block 30 is sleeved in the rectangular groove, a top rod is fixedly connected to one side of the top block 30, one side of the rectangular groove is sleeved with the top rod through a square hole, two screw rods 26 are fixedly connected to one side of the rectangular block 27, a thrust plate 25 is commonly connected to the rod walls of the two screw rods 26, the thrust plate 25 is sleeved with the screw rod 26 through an assembly hole, a locking nut is threadedly connected to the rod wall of the screw rod 26, a positioning hole is provided on the side wall of the thrust plate 25, a positioning block is fixedly connected to one end of the top rod, the positioning block matches the positioning hole, and the size of the positioning block also matches the positioning hole, that is, when the thrust plate 25 contacts the top rod, the positioning block can be inserted into the positioning hole to play a positioning role.

[0052] A slot 45 is provided on one side opposite to the two side plates 28 . One side of the rectangular block 27 is fixedly connected to the limiting plate 23 . The edge of the limiting plate 23 is engaged in the slot 45 . A right-angle notch is provided at the corner of the rectangular block 27 , which matches the edge of the slot 45 .

[0053] The present invention is provided with a fixing assembly, in which the T-block 44 and the fixing block 43 are respectively sleeved in two adjacent T-slots, and the fixing assembly is pushed to a suitable position. The nut is first tightened so that the bolt drives the fixing block 43 to squeeze the T-slot, and then the locking nut is tightened to squeeze the thrust plate 25. The thrust plate 25 moves to push the push rod so that the push block 30 squeezes the mold. At this time, multiple push blocks 30 can be used to adjust the position of the mold, and then the pressure plate 21 is pressed against the mold and the nut is tightened. The nut moves down to press the rectangular block 27 to move the rib plate 22 and the pressure plate 21 downward. The pressure plate 21 moves downward to press the mold, thereby facilitating the pressing, fixing and adjustment of the mold.

[0054] 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.

[0055] 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. An internal high-pressure forging device for lightweight structural parts, comprising a frame (3), a hydraulic press (7), a mobile frame (6), an upper die (5), a lower die (4), a workbench (1) and two rails (2), characterized in that: The workbench (1) is arranged above the two tracks (2); the workbench (1) is a hollow structure; a lifting frame (32) is arranged inside the workbench (1); and a driving mechanism is installed on the lifting frame (32); The driving mechanism comprises a main shaft (39) and a transverse shaft (40), the main shaft (39) and the transverse shaft (40) are both rotatably connected to the lifting frame (32) through ball bearings, both ends of the main shaft (39) and the transverse shaft (40) are fixedly connected with driving wheels (9), the side wall of the workbench (1) is provided with a plurality of strip openings matching with the driving wheels (9), one side of the driving wheel (9) passes through the strip openings and contacts with the upper end of the track (2), one side of the lifting frame (32) is fixedly connected with a reduction motor (38), the output end of the reduction motor (38) is fixedly connected with the main shaft (39) coaxially One side of the lifting frame (32) is rotatably connected to a connecting shaft (36) through a bearing seat, and both ends of the connecting shaft (36) are fixedly connected to first bevel gears (34), one of the first bevel gears (34) is meshed with a second bevel gear (37), and the other first bevel gear (34) is meshed with a third bevel gear (35), the second bevel gear (37) is fixedly connected to the shaft wall of the main shaft (39), and the third bevel gear (35) is fixedly connected to the shaft wall of the horizontal shaft (40), and the driving mechanism is in contact with the two tracks (2) to drive the workbench (1) to move on the track (2); The bottom of the workbench (1) is provided with a plurality of rectangular openings, each of which is provided with a fixing mechanism, the fixing mechanism being connected to one side of the lifting frame (32) via two pull rods (18), the fixing mechanism comprising a transmission shaft (42), the transmission shaft (42) being rotatably connected to the inner wall of the bottom of the workbench (1) via two bearing seats, the rectangular opening being provided with a first clamping plate (15) and a second clamping plate (16), the first clamping plate (15) and the second clamping plate (16) being both sleeved with two guide rods (14) via guide holes, the two guide rods (14) being both fixed in the rectangular opening, one side of the first clamping plate (15) being fixedly connected to two rectangular rods (41), the second The clamping plate (16) is sleeved with two rectangular rods (41) through a square hole, one end of the rectangular rod (41) is fixedly connected with a brake plate (19), a plurality of brake blocks (17) are arranged between the brake plate (19) and the second clamping plate (16), the plurality of brake blocks (17) are fixed on the shaft wall of the transmission shaft (42), both ends of the transmission shaft (42) are fixedly connected with a support arm (20), one end of the support arm (20) is rotatably connected to one end of the pull rod (18) through a rotating shaft, the end of the pull rod (18) away from the support arm (20) is rotatably connected to one side of the lifting frame (32) through a hinge seat, and the fixing mechanism fixes the workbench (1) through a clamping rail (2); The upper end of the workbench (1) is provided with an opening, and a top plate is fixedly connected to the opening; the upper end of the top plate and the lower end of the movable frame (6) are both fixedly connected to a fixed plate (8); a plurality of evenly distributed T-shaped slots are provided on opposite sides of the two fixed plates (8); the fixed plates (8) are connected to a fixing assembly via the T-shaped slots; and the upper die (5) and the lower die (4) are respectively connected to the two fixed plates (8) via the fixing assembly.

2. The internal high pressure forging device for lightweight structural parts according to claim 1, characterized in that: The side wall of the driving wheel (9) is fixedly connected to a toothed ring (11) via an annular groove, the upper end of the track (2) is fixedly connected to a rack (33) via a groove, the edge of the driving wheel (9) contacts the upper end of the track (2), and the toothed ring (11) meshes with the rack (33).

3. The internal high pressure forging device for lightweight structural parts according to claim 1, characterized in that: The side wall of the lifting frame (32) is fixedly connected to a plurality of hydraulic cylinders (13) via a bracket, and the output ends of the plurality of hydraulic cylinders (13) are fixedly connected to a support, and the support is fixed on the inner side of the workbench (1).

4. The internal high pressure forging device for lightweight structural parts according to claim 1, characterized in that: The side wall of the lifting frame (32) is fixedly connected to a guide tube (10), a guide column (12) is sleeved inside the guide tube (10), the guide column (12) is fixed between the top plate and the bottom inner wall of the workbench (1), and a plurality of limit strips (31) are fixedly connected inside the workbench (1), and the plurality of limit strips (31) are in contact with the side wall of the lifting frame (32).

5. The internal high pressure forging device for lightweight structural parts according to claim 1, characterized in that: The fixing assembly comprises a bottom plate (29), a T-shaped block (44) is fixedly connected to the lower end of the bottom plate (29), the T-shaped block (44) is slidably connected in the T-shaped groove, a fixing block (43) is arranged at the lower end of the bottom plate (29), the fixing block (43) is slidably connected in the T-shaped groove and fixedly connected with two bolts, the side wall of the bottom plate (29) is sleeved with the bolts through a circular hole, the bolts are connected with nuts, and the upper end of the bottom plate (29) is fixed Two side plates (28) are connected, a rectangular block (27) is arranged between the two side plates (28), the side wall of the rectangular block (27) is sleeved with two screw rods (24) through a through hole, the lower ends of the two screw rods (24) are fixed to the upper end of the bottom plate (29), nuts are connected to the rod walls of the screw rods (24), the side wall of the rectangular block (27) is fixedly connected to a rib plate (22), and one side of the rib plate (22) is fixedly connected to a pressure plate (21).

6. The internal high pressure forging device for lightweight structural parts according to claim 5, characterized in that: A clamping groove (45) is provided on one side opposite to the two side plates (28); one side of the rectangular block (27) is fixedly connected to a limiting plate (23); the edge of the limiting plate (23) is clamped in the clamping groove (45); a right-angled notch is provided at a corner of the rectangular block (27); the right-angled notch matches the edge of the clamping groove (45).

7. The internal high pressure forging device for lightweight structural parts according to claim 5, characterized in that: A rectangular groove is provided on one side of the rectangular block (27), a top block (30) is sleeved in the rectangular groove, a top rod is fixedly connected to one side of the top block (30), one side of the rectangular groove is sleeved with the top rod through a square hole, two screw rods (26) are fixedly connected to one side of the rectangular block (27), a thrust plate (25) is commonly connected to the rod walls of the two screw rods (26), the thrust plate (25) is sleeved with the screw rod (26) through an assembly hole, a locking nut is threadedly connected to the rod wall of the screw rod (26), a positioning hole is provided on the side wall of the thrust plate (25), one end of the top rod is fixedly connected to a positioning block, and the positioning block matches the positioning hole.

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