CN216226301U - Bending die applied to middle truck automobile beam - Google Patents
Bending die applied to middle truck automobile beam Download PDFInfo
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- CN216226301U CN216226301U CN202122775191.7U CN202122775191U CN216226301U CN 216226301 U CN216226301 U CN 216226301U CN 202122775191 U CN202122775191 U CN 202122775191U CN 216226301 U CN216226301 U CN 216226301U
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Abstract
A bending die applied to a middle truck automobile beam comprises a bending die fixing part and a bending die swinging part; the bending die is characterized in that the swinging part of the bending die comprises a swinging part mounting bottom plate and a swinging part positioning side supporting plate fixedly arranged in a positioning groove of the swinging part mounting bottom plate, and a swinging part middle supporting plate and a swinging part moving side supporting plate are fixedly connected together by a guide column; an inverted T-shaped groove parallel to the axis of the guide post is processed on the mounting bottom plate of the swinging part; processing grooves on the bottom surfaces of the swing part positioning side outer clamping plate, the swing part moving side outer clamping plate, the swing part positioning side inner clamping plate and the swing part moving side inner clamping plate; and the T-shaped groove guide blocks inserted into the inverted T-shaped grooves are respectively fastened in grooves at the bottoms of the swing part positioning side outer clamping plate, the swing part moving side outer clamping plate, the swing part positioning side inner clamping plate and the swing part moving side inner clamping plate.
Description
Technical Field
The utility model relates to equipment for manufacturing automobile beams, in particular to a bending die applied to a middle truck automobile beam.
Background
At present, the large part of the middle truck automobile beam is produced by adopting an integral bending forming process and a large-scale press or a combined die. The process adopts a die with a fixed shape, has poor flexibility, causes complex debugging process of the bending process due to different elastic recovery after bending, and is difficult to repair and adjust the die. The other major processing method of the heavy truck automobile beam is a slitting-rolling-three-side punching-cutting-bending-riveting process; the device is used for straight-through girders and heavy trucks and is widely applied; in fact, the experience is more, and what kind of processing technology is used is to see the equipment capability of the equipment, so that the use is not influenced more. In order to meet the rapidly changing loading requirements of customers, challenges are also brought to mold development. The mold-in-service may be subject to modification or scrap. The requirement is that a more flexible processing mode is adopted when the parts are processed; some commercial vehicle middle truck automobile beam fitting manufacturers provide a production process scheme of rolling forming and then bending, and a bending machine and a bending die suitable for the middle truck automobile beam are developed under the large environment.
The existing bending die suitable for bending the heavy truck girder can only process the U-shaped automobile beam with the ventral surface width of 200-360mm and the wing surface height of 55-110 mm; the ventral surface width of the U-shaped beam of the middle truck automobile is 140-360mm, and the height of the wing surface is 55-110mm, so that the bending die of the traditional automobile beam bending machine cannot meet the production requirement.
Chinese utility model patent specification CN213316997U discloses a be applied to special symmetry clamping die that car was bent, promptly: the strokes of the clamping plates at the two sides and the clamping oil cylinders at the two sides are symmetrical about the middle inner baffle, and the guide of a sliding guide rail with an L-shaped section and the flat plate structure of a traditional mould are adopted; the swing part bending die is not provided with an external clamping plate, and when the U-shaped beam is bent, the bending side of the wing surface of the U-shaped beam can be distorted and deformed, so that great difficulty can be brought to the beam combination of the next procedure of the U-shaped beam. The problems of the prior art are as follows: the existing U-shaped beam bending machine and the matched bending die cannot completely meet the bending requirement of the middle-clamping U-shaped beam, the U-shaped beam with the ventral surface width of 200 plus-materials within the range of 360mm can only be bent, and the single set of bending die cannot meet the bending requirement of the U-shaped beam with the ventral surface width of 140 plus-materials within the range of 360 mm. According to the traditional U-shaped beam bending die with a flat plate structure, due to the limitation of a mechanical mechanism (die rigidity and strength), the die can bend a U-shaped beam with the ventral surface width of 140mmU, and can meet the rigidity and strength of the maximum bending U-shaped beam with the ventral surface width of 360mm, after the maximum bearing force is loaded on the traditional bending die, the stress generated by a clamping plate in a swinging part is very close to the yield stress of a die material (CrWMn) (as shown in figure 5), if the swinging part also adopts the existing double-guide-column guide structure, the section size of the clamping plate in the swinging part is reduced, after the same maximum bearing force is loaded, the stress generated by the clamping plate in the swinging part is already larger than the yield stress of the die material (CrWMn), and the reduction of the section size of the die is not feasible by adopting the existing structure. The special symmetrical clamping die for bending the automobile needs a whole U-shaped beam bending production line, a feeding part, a clamping and conveying part and a discharging part are required to be positioned in the middle, and the installation and positioning references of the whole production line are all positioned in the middle, so that the complexity of the mechanical structure of the whole production line is greatly increased; meanwhile, the special symmetrical clamping die is not provided with a clamping plate for clamping the outer side of the wing plate of the U-shaped beam on the swing side structure, and the risk of wing surface deformation exists when the U-shaped beam is bent. According to a traditional U-shaped beam bending die with a flat plate structure, a lubricating oil groove is formed in a die mounting bottom plate and a guide column, and lubricating oil flows out of the oil groove when being filled with the lubricating oil.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a bending die applied to a middle truck automobile beam, which realizes the rapid positioning and clamping of a workpiece and meets the requirement of bending a middle truck U-shaped beam (the ventral surface width range is 140 plus 360 mm).
In order to achieve the purpose, the technical scheme of the utility model is as follows: a bending die applied to a middle truck automobile beam comprises a bending die fixing part and a bending die swinging part; the bending die is characterized in that the swinging part of the bending die comprises a swinging part mounting bottom plate, a swinging part positioning side supporting plate, a swinging part middle supporting plate and a swinging part moving side supporting plate, wherein the swinging part positioning side supporting plate is fixedly arranged in a positioning groove of the swinging part mounting bottom plate; the swing part positioning side supporting plate, the swing part middle supporting plate and the swing part moving side supporting plate are fixedly connected together by a guide column; an inverted T-shaped groove parallel to the axis of the guide post is processed on the mounting bottom plate of the swinging part; processing grooves on the bottom surfaces of the swing part positioning side inner clamping plate and the swing part moving side inner clamping plate; respectively fastening the T-shaped groove guide blocks inserted into the inverted T-shaped grooves into grooves at the bottoms of the swing part positioning side inner clamping plate and the swing part moving side inner clamping plate; the swing part positioning side outer clamping plate, the swing part moving side outer clamping plate, the swing part positioning side inner clamping plate and the swing part moving side inner clamping plate are movably arranged on the guide post along the guide post; the swing part positioning side outer clamping plate and the swing part moving side outer clamping plate slide on the swing part mounting base plate along the guide column; the swing portion moving side outer clamp plate and the swing portion moving side inner clamp plate slide on the swing portion mounting base plate along the guide posts and the T-shaped grooves on the swing portion mounting base plate.
The scheme is characterized in that the swing part positioning side supporting plate, the swing part middle supporting plate and the swing part moving side supporting plate are fixed in the grooves corresponding to the upper plane of the fixed part mounting bottom plate through bolts.
The swing portion intermediate support plate positions the side support plate adjacent to the swing portion.
The swing part positioning side clamping oil cylinder is fixed on the outer side of the swing part positioning side outer clamping plate, and the rod end of a piston rod of the swing part positioning side clamping oil cylinder is fixed with the swing part positioning side inner clamping plate through a nut; when the swing part positioning side clamping cylinder acts, the swing part positioning side outer clamping plate slides on the upper plane of the swing part mounting base plate between the swing part positioning side supporting plate and the swing part middle supporting plate along the guide column; the swing part positioning side inner clamping plate slides on the upper plane of a swing part mounting bottom plate between a swing part positioning side supporting plate and a swing part middle supporting plate along the guide column and the T-shaped groove; because the outer clamping plate on the positioning side of the swinging part is movable, and the clamping oil cylinder on the positioning side of the swinging part is fixed on the outer side of the outer clamping plate on the positioning side of the swinging part, the clamping oil cylinder on the positioning side of the swinging part is also movable, so that the interference between the cylinder body of the clamping oil cylinder on the positioning side of the swinging part and the supporting plate on the positioning side of the swinging part is avoided, a cylinder body through hole in clearance fit with the cylinder body of the clamping oil cylinder on the positioning side of the swinging part is processed on the supporting plate on the positioning side of the swinging part, and the cylinder body of the clamping oil cylinder on the positioning side of the swinging part slides back and forth relative to the supporting plate on the positioning side of the swinging part.
The swing part moving side clamping oil cylinder is fixed on the outer side of the swing part moving side outer clamping plate, and the rod end of a piston rod of the swing part moving side clamping oil cylinder is fixed with the swing part moving side inner clamping plate through a nut; thus, when the swing portion moving side clamping cylinder is actuated, the swing portion moving side outer clamping plate slides along the guide post on the upper plane of the swing portion mounting base plate between the swing portion moving side support plate and the swing portion intermediate support plate; the swing part moving side inner clamping plate slides on the upper plane of a swing part mounting bottom plate between a swing part moving side supporting plate and a swing part middle supporting plate along the guide column and the T-shaped groove; because the swing part moving side outer clamping plate is movable, and the swing part moving side clamping cylinder is fixed on the outer side of the swing part moving side outer clamping plate, the swing part moving side clamping cylinder is also movable, so that the interference between the swing part moving side clamping cylinder body and the swing part moving side supporting plate is avoided, and a cylinder body through hole in clearance fit with the swing part moving side clamping cylinder body is processed on the swing part moving side supporting plate, so that the swing part moving side clamping cylinder body can slide in a reciprocating manner relative to the swing part moving side supporting plate.
A concave part matched with the middle supporting plate of the swinging part is arranged on one side surface of the clamping plate in the positioning side of the swinging part; a concave part matched with the middle supporting plate of the swing part is arranged on one side surface of the clamping plate in the moving side of the swing part; the swing portion intermediate support plate is fitted into the recessed portions of the swing portion positioning side inner clamp plate and the swing portion moving side inner clamp plate.
The bending die fixing part comprises a fixing part mounting bottom plate, a fixing part positioning side supporting plate, a fixing part middle supporting plate and a fixing part moving side supporting plate, wherein the fixing part positioning side supporting plate, the fixing part middle supporting plate and the fixing part moving side supporting plate are arranged in a positioning groove in the positioning groove of the fixing part mounting bottom plate; the fixed portion intermediate support plate positions the side support plates adjacent the fixed portion. The fixed-part intermediate support plate 37 and the swinging-part intermediate support plate 17 are aligned. The fixed part positioning side supporting plate, the fixed part middle supporting plate and the fixed part moving side supporting plate are fixedly connected together by two guide columns; a fixed part positioning side auxiliary outer clamping plate, a fixed part positioning side main outer clamping plate and a fixed part positioning side inner clamping plate which are positioned between the fixed part positioning side supporting plate and the fixed part middle supporting plate are arranged on the guide column; the fixing part positioning side auxiliary outer clamping plate, the fixing part positioning side main outer clamping plate and the fixing part positioning side inner clamping plate all slide on the fixing part mounting base plate along the guide columns.
The guide post is provided with a fixed part moving side auxiliary outer clamping plate, a fixed part moving side main outer clamping plate and a fixed part moving side inner clamping plate which are positioned between a fixed part middle supporting plate and a fixed part moving side supporting plate, and the fixed part moving side auxiliary outer clamping plate, the fixed part moving side main outer clamping plate and the fixed part moving side inner clamping plate all slide on the fixed part mounting bottom plate along the guide post.
Grooves are symmetrically processed on two side surfaces of the middle part of the middle support plate of the fixed part, a rectangular groove is formed on the inner side surface of the clamping plate in the positioning side of the fixed part, a raised step surface is arranged in the rectangular groove and is lower than the inner side surface of the inner clamping plate in the positioning side of the fixed part, and the raised step surface is correspondingly embedded into the groove on the middle support plate of the fixed part; the fixed part intermediate support plate is just inserted into the rectangular grooves of the fixed part positioning side inner clamping plate and the fixed part moving side inner clamping plate.
The fixed part positioning side pair clamping oil cylinder is fixed on the outer side surface of the fixed part positioning side pair outer clamping plate, and the rod end of the piston rod of the fixed part positioning side pair clamping oil cylinder is fixed with the fixed part positioning side inner clamping plate through a nut; when the fixed part positioning side auxiliary clamping cylinder acts, the fixed part positioning side auxiliary outer clamping plate and the fixed part positioning side inner clamping plate can slide on the upper plane of the fixed part mounting bottom plate between the fixed part positioning side supporting plate and the fixed part middle supporting plate along the guide column; because the auxiliary outer clamping plate at the positioning side of the fixed part is movable, and the auxiliary clamping oil cylinder at the positioning side of the fixed part is fixed outside the auxiliary outer clamping plate at the positioning side of the fixed part, the auxiliary clamping oil cylinder at the positioning side of the fixed part is also movable, so that the interference between the cylinder body of the auxiliary clamping oil cylinder at the positioning side of the fixed part and the supporting plate at the positioning side of the fixed part is avoided, a cylinder body through hole in clearance fit with the cylinder body of the auxiliary clamping oil cylinder at the positioning side of the fixed part is processed on the supporting plate at the positioning side of the fixed part, and the cylinder body of the auxiliary clamping oil cylinder at the positioning side of the fixed part can slide in a reciprocating manner relative to the supporting plate at the positioning side of the fixed part.
The fixed part positioning side main clamping oil cylinder is fixed on the outer side surface of the fixed part positioning side main outer clamping plate, and the rod end of a piston rod of the fixed part positioning side main clamping oil cylinder is fixed with the fixed part positioning side inner clamping plate through a nut; when the fixing part positioning side main clamping cylinder acts, the fixing part positioning side main outer clamping plate and the fixing part positioning side inner clamping plate can slide on the fixing part mounting bottom plate between the fixing part positioning side supporting plate and the fixing part middle supporting plate along the guide column; the main outer clamping plate at the positioning side of the fixed part is movable, and the main clamping oil cylinder at the positioning side of the fixed part is fixed on the outer side of the main outer clamping plate at the positioning side of the fixed part, so that the main clamping oil cylinder at the positioning side of the fixed part is also movable, in order to increase the rigidity of the main clamping oil cylinder at the positioning side of the fixed part during movement, the main clamping oil cylinder guide seat at the positioning side of the part fixing part is increased for the main clamping oil cylinder body at the positioning side of the fixed part to pass through, and the oil cylinder body is in clearance fit with the main clamping oil cylinder guide seat at the positioning side of the fixed part, so that the main clamping oil cylinder body at the positioning side of the fixed part can freely slide in the main clamping oil cylinder guide seat at the positioning side of the fixed part.
The fixed part moving side auxiliary clamping oil cylinder is fixed on the outer side surface of the fixed part moving side auxiliary outer clamping plate, and the rod end of a piston rod of the fixed part moving side auxiliary clamping oil cylinder is fixed with the fixed part moving side inner clamping plate through a nut; when the fixed part moving side auxiliary clamping cylinder acts, the fixed part moving side auxiliary outer clamping plate and the fixed part moving side inner clamping plate can slide on the plane of the fixed part mounting bottom plate between the fixed part moving side supporting plate and the fixed part middle supporting plate along the guide column; because the fixed part moving side auxiliary outer clamping plate is movable, and the fixed part positioning side auxiliary clamping oil cylinder is fixed outside the fixed part moving side auxiliary outer clamping plate, the fixed part moving side auxiliary clamping oil cylinder is also movable, so that the interference between the fixed part moving side auxiliary clamping oil cylinder body and the fixed part moving side supporting plate is avoided, a cylinder body through hole in clearance fit with the fixed part positioning side auxiliary clamping oil cylinder body is processed on the fixed part moving side supporting plate, and the fixed part positioning side auxiliary clamping oil cylinder body can slide in a reciprocating manner relative to the fixed part moving side supporting plate.
The fixed part moving side main clamping oil cylinder is fixed on the outer side of the fixed part moving side main outer clamping plate, and the rod end of a piston rod of the fixed part moving side main clamping oil cylinder is fixed with the fixed part moving side inner clamping plate through a nut; the fixed part mounting bottom plate is fixedly provided with a fixed part moving side main clamping oil cylinder guide seat, and the fixed part moving side main clamping oil cylinder body is in clearance fit with the fixed part moving side main clamping oil cylinder guide seat.
The utility model has the beneficial effects that: the T-shaped block plays a role in guiding and fastening, grooves are processed in the bottom surfaces of the clamping plate in the positioning side of the swinging part and the clamping plate in the moving side of the swinging part, and the two T-shaped blocks are fastened into the grooves at the bottoms of the clamping plate in the positioning side of the swinging part and the clamping plate in the moving side of the swinging part by fastening bolts, so that the T-shaped block plays a role similar to a guiding flat key, the whole T-shaped block is stressed in the bending process, the stress of a bolt for fastening the T shape is avoided, and the reliability of a bending die is greatly improved. The middle of the clamping plate in the fixed part positioning side, the clamping plate in the fixed part moving side and the clamping plate in the swing part adopt crossed smooth circular arc transition, so that smoothness of material passing is ensured, the inner surface of the U-shaped beam cannot be damaged when the bending die is bent up and down, cracks are prevented from appearing in the smooth circular arc transition when the die is quenched by heat treatment, and stress concentration appears in the die during use and the service life of the die is influenced by the smooth circular arc transition. The middle support plate of the bending die is not the middle of the mounting bottom plate of the mounting die, the stroke of the clamping oil cylinder on the positioning side is short, and the stroke of the clamping oil cylinder on the moving side is large; the movement strokes of the positioning side inner and outer clamping plates and the moving side inner and outer clamping plates are not symmetrical about the middle support plate; when the piston rod of the clamping oil cylinder at the positioning side extends out, the wing plate of the thickest U-shaped beam can pass through smoothly; the biggest benefit of asymmetric mould of bending, to the preceding pay-off part that comes, the part of advancing, the back ejection of compact part of whole production line say, the fixed running roller location of unilateral, the opposite side running roller presss from both sides tightly can, simple structure, location benchmark unanimous, the installation and the use of the whole production line of bending of being convenient for. The action of the bending die is that after the U-shaped beam wing plate is clamped by the inner and outer clamping plates, the main machine material pressing oil cylinder is pressed down again, and then the U-shaped beam is bent, so that the inner clamping plate does not have the scratch problem to the inner web surface of the U-shaped beam. The special asymmetric bending die for bending the middle truck automobile beam is suitable for the middle truck automobile beam, and can meet the bending requirement of the middle truck U-shaped beam (the ventral surface width range is 140 plus 360 mm). The installation reference and the positioning reference of the utility model are consistent with the original reference of the company, and when the bending of the U-shaped beam of the automobile is finished, other bending hosts, the front feeding part, the front clamping and conveying part, the rear discharging part and the like do not need to be researched and developed again, and the original heavy truck U-shaped beam bending production line is directly borrowed, so that the research and development time of the middle truck U-shaped beam bending production line is reduced. The production and manufacturing period from research and development to customer use is greatly shortened.
Drawings
Fig. 1 is a schematic view of an installation and use scenario of the present invention. Fig. 2 is a schematic view of the overall structure of the present invention. Fig. 3 is a schematic sectional view of the present invention taken along the axis of the clamping cylinder from the swing portion. Fig. 4 is a partial cross-sectional schematic view of the present invention taken through the intermediate support plate. Fig. 5 is a schematic view showing the structure of the intermediate support plate of the fixing portion of the present invention. FIG. 6 is a schematic view showing the construction of the part of the fixing portion positioning side inner clamping plate of the present invention. Fig. 7 is a schematic view of the structure of the part of the swing portion intermediate support plate of the present invention. Fig. 8 is a schematic view showing the construction of the swing portion positioning side inner clamping plate of the present invention.
In the figure: 1-girder bending host fixing part; 2-the main machine swings the rotating shaft; 3-bending the girder by a swinging part of the main machine; 4-bending die special for the scheme; 5-a main machine material pressing oil cylinder; 6-automobile U-shaped beam needing to be bent; 7-a host swing oil cylinder; a-bending the fixed part of the mould; b-bending the swing part of the mould; 11-the fixed part moves the side main clamping cylinder guide seat; 12-a fixed part moving side main clamping oil cylinder; 13-the swing part moving side clamping cylinder; 14-the swing portion moves the side outer support plate; 15-the swing part moves the lateral outer clamping plate; 16-swing part moving side inner clamping plate; 17-swing part intermediate support plate; 18-swing portion positioning side inner clamping plate; 19-swing part mounting base plate; 20-the swing portion positioning side outer support plate; 21-the swing part positioning side outer clamping plate; 22-swing part positioning side clamping cylinder; 23-fixing part positioning side main clamping oil cylinder guide seat; 24-fixing part positioning side main clamping oil cylinder; 25-fixing part positioning side pair clamping oil cylinder; 26-the fixed part positioning side support plate; 27-a fixed part positioning side main outer clamping plate; 28-fixing part positioning side pair outer clamping plate; 29-fixed part positioning side inner clamping plate; 30-fixed part moving side inner clamping plate; 31-a guide post; 32-fixed part moving side pair outer clamping plate; 33-fixing part moving side pair clamping oil cylinder; 34-the fixed part moving side support plate; 35-a fixed part mounting base plate; 36-stationary part moving side main outer clamping plate; 37-fixed part middle support plate, 38-T-shaped groove guide block, 39-fixed part guide post mounting hole, 40-groove, 41-fabrication hole, 42-fixed part guide post mounting hole, 43-stepped hole for fixing fixed part positioning side main clamping cylinder piston rod, 44-guide hole matched with fixed part guide post, 45-convex stepped surface, 46-stepped hole for fixing fixed part positioning side auxiliary clamping cylinder piston rod, 47-guide hole matched with fixed part guide post, 48-inner side surface of fixed part positioning side inner clamping plate, 49-sliding surface contacted with upper plane of fixed part mounting baseplate, 50 swinging part guide post mounting hole, 51-guide hole matched with swinging part guide post, 52-recessed portion, 53-a positioning groove for mounting a T-shaped groove guide block, 54-a stepped hole for fixing a swing part positioning side clamping cylinder piston rod, 55-a sliding surface contacted with the upper plane of a swing part mounting base plate, and 56-the inner side surface of a swing part positioning side inner clamping plate.
Detailed Description
As shown in fig. 2, a bending die applied to a beam of a medium truck automobile comprises a fixed part a of the bending die and a swinging part B of the bending die.
As shown in fig. 1, a bending die fixing part a is installed on a mounting surface of a girder bending main machine fixing part 1; and the swinging part B of the bending die is arranged on the mounting surface of the swinging part 3 of the main girder bending machine.
The bending die fixing part A comprises a fixing part mounting bottom plate 35, a fixing part positioning side supporting plate 26, a fixing part middle supporting plate 37 and a fixing part moving side supporting plate 34, wherein the fixing part positioning side supporting plate 26, the fixing part middle supporting plate 37 and the fixing part moving side supporting plate 34 are arranged in a positioning groove in the positioning groove of the fixing part mounting bottom plate 35; the fixed part intermediate support plate 37 positions the side support plate 26 adjacent to the fixed part. The fixed-part positioning side support plate 26, the fixed-part intermediate support plate 37 and the fixed-part moving side support plate 34 are fixedly connected together at their middles by two guide posts 31; a fixed part positioning side sub outer clamp plate 28, a fixed part positioning side main outer clamp plate 27 and a fixed part positioning side inner clamp plate 29 which are positioned between the fixed part positioning side support plate 26 and the fixed part intermediate support plate 37 are provided on the guide post 31; the fixed part positioning side sub outer clamp plate 28, the fixed part positioning side main outer clamp plate 27, and the fixed part positioning side inner clamp plate 29 all slide on the fixed part mounting baseplate 35 along the guide posts 31.
A fixed-part moving-side sub outer clamp plate 32, a fixed-part moving-side main outer clamp plate 36, and a fixed-part moving-side inner clamp plate 30 are provided on the guide post 31 between the fixed-part intermediate support plate 37 and the fixed-part moving-side support plate 34, and the fixed-part moving-side sub outer clamp plate 32, the fixed-part moving-side main outer clamp plate 36, and the fixed-part moving-side inner clamp plate 30 all slide on the fixed-part mounting baseplate 35 along the guide post 31.
The fixed part positioning side auxiliary clamping oil cylinder 25 is fixed on the outer side surface of the fixed part positioning side auxiliary outer clamping plate 28, and the rod end of the piston rod of the fixed part positioning side auxiliary clamping oil cylinder 25 is fixed with the fixed part positioning side inner clamping plate 29 through a nut; thus, when the fixed-part positioning-side sub-clamp cylinder 25 is actuated, both the fixed-part positioning-side sub-outer clamp plate 28 and the fixed-part positioning-side inner clamp plate 29 can be slid planarly on the fixed-part mounting base plate 35 between the fixed-part positioning-side support plate 26 and the fixed-part intermediate support plate 37 along the guide posts 31; because the fixed part positioning side pair outer clamping plate 28 is movable, and the fixed part positioning side pair clamping cylinder 25 is fixed outside the fixed part positioning side pair outer clamping plate 28, the fixed part positioning side pair clamping cylinder 25 is also movable, and the interference between the cylinder body of the fixed part positioning side pair clamping cylinder 25 and the fixed part positioning side support plate 26 is avoided, so that a cylinder body through hole in clearance fit with the cylinder body of the fixed part positioning side pair clamping cylinder 25 is processed on the fixed part positioning side support plate 26, and the cylinder body of the fixed part positioning side pair clamping cylinder 25 is allowed to slide back and forth relative to the fixed part positioning side support plate 26.
The fixed part positioning side main clamping oil cylinder 24 is fixed on the outer side surface of the fixed part positioning side main outer clamping plate 27, and the rod end of the piston rod of the fixed part positioning side main clamping oil cylinder 24 is fixed with the fixed part positioning side inner clamping plate 29 through a nut; thus, when the fixed-part positioning-side main clamp cylinder 24 is actuated, both the fixed-part positioning-side main outer clamp plate 27 and the fixed-part positioning-side inner clamp plate 29 can be slid planarly on the fixed-part mounting base plate 35 between the fixed-part positioning-side support plate 26 and the fixed-part intermediate support plate 37 along the guide posts 31; because the fixed part positioning side main outer clamping plate 27 is movable and the fixed part positioning side main clamping cylinder 24 is fixed outside the fixed part positioning side main outer clamping plate 27, the fixed part positioning side main clamping cylinder 24 is also movable, in order to increase the rigidity of the fixed part positioning side main clamping cylinder 24 when moving, the part fixed part positioning side main clamping cylinder guide seat 23 is increased for the fixed part positioning side main clamping cylinder 24 to pass through, and the cylinder body is in clearance fit with the fixed part positioning side main clamping cylinder guide seat 23, so that the fixed part positioning side main clamping cylinder 24 can freely slide in the fixed part positioning side main clamping cylinder guide seat 23.
The fixed part moving side auxiliary clamping oil cylinder 33 is fixed on the outer side surface of the fixed part moving side auxiliary outer clamping plate 32, and the rod end of the piston rod of the fixed part moving side auxiliary clamping oil cylinder 33 is fixed with the fixed part moving side inner clamping plate 30 through a nut; thus, when the fixed-part moving-side sub-clamping cylinder 33 is actuated, both the fixed-part moving-side sub-outer clamping plate 32 and the fixed-part moving-side inner clamping plate 30 can be slid planarly along the guide post 31 on the fixed-part mounting base plate 35 between the fixed-part moving-side support plate 34 and the fixed-part intermediate support plate 37; because the fixed part moving side sub outer clamping plate 32 is movable and the fixed part positioning side sub clamping cylinder 33 is fixed outside the fixed part moving side sub outer clamping plate 32, the fixed part moving side sub clamping cylinder 33 is also movable, and the interference between the fixed part moving side sub clamping cylinder 33 and the fixed part moving side supporting plate 34 is avoided, so that a cylinder body through hole which is in clearance fit with the cylinder body of the fixed part positioning side sub clamping cylinder 33 is processed on the fixed part moving side supporting plate 34, and the cylinder body of the fixed part positioning side sub clamping cylinder 33 is made to slide back and forth relative to the fixed part moving side supporting plate 34.
The fixed part moving side main clamping cylinder 12 is fixed on the outer side of the fixed part moving side main outer clamping plate 36, and the rod end of the piston rod of the fixed part moving side main clamping cylinder 12 is fixed with the fixed part moving side inner clamping plate 30 through a nut; the fixed part mounting bottom plate 35 is fixedly provided with a fixed part moving side main clamping cylinder guide seat 11, and a gap fit is formed between the cylinder body of the fixed part moving side main clamping cylinder 12 and the fixed part moving side main clamping cylinder guide seat 11. Thus, when the fixed-section moving-side main clamp cylinder 12 is actuated, both the fixed-section moving-side main outer clamp plate 36 and the fixed-section moving-side inner clamp plate 30 can be slid flatly along the guide posts 31 on the fixed-section mounting base plate 35 between the fixed-section moving-side support plate 34 and the fixed-section intermediate support plate 37; since the fixed part moving side main outer clamp plate 36 is movable and the fixed part moving side main clamp cylinder 12 is fixed to the outside of the fixed part moving side main outer clamp plate 36, the fixed part moving side main clamp cylinder 12 is also movable, and in order to increase the rigidity when the fixed part moving side main clamp cylinder 12 moves, the part fixed part moving side main clamp cylinder guide 11 is increased to allow the fixed part moving side main clamp cylinder 12 to pass therethrough, and the fixed part moving side main clamp cylinder 12 can freely slide in the fixed part positioning side main clamp cylinder guide 11.
The bending die swing part B comprises a swing part mounting bottom plate 19, a swing part positioning side support plate 20 fixedly arranged in a positioning groove of the swing part mounting bottom plate 19, a swing part middle support plate 17 and a swing part moving side support plate 14. The swinging-section positioning side support plate 20, the swinging-section intermediate support plate 17 and the swinging-section moving side support plate 14 are bolted into the corresponding recesses in the upper plane of the fixed-section mounting base plate 19. The swing portion intermediate support plate 17 positions the side support plate 20 adjacent to the swing portion. The fixed-part intermediate support plate 37 and the swinging-part intermediate support plate 17 are aligned. The swing portion positioning side support plate 20, the swing portion intermediate support plate 17 and the swing portion moving side support plate 14 are fixedly coupled together with a guide post 31 therebetween.
An inverted T-shaped groove parallel to the axis of the guide post is formed in the swing portion mounting base plate 19 for guiding the swing portion positioning side inner clamp plate 18 and the swing portion moving side inner clamp plate 16; grooves are formed in the bottom surfaces of the swing portion positioning side inner clamping plate 18 and the swing portion moving side inner clamping plate 16 (as shown in fig. 6). The T-shaped groove guide block 38 inserted into the inverted T-shaped groove is respectively fastened to the grooves at the bottoms of the swing part positioning side inner clamping plate 18 and the swing part moving side inner clamping plate 16 by fastening bolts, so that the T-shaped groove guide block plays a role similar to a guide flat key, the whole T-shaped block is stressed in the bending process, the stress of a simple fastening T-shaped bolt is avoided, and the reliability of the bending die is greatly improved. The swing portion positioning side outer clamp plate, the swing portion moving side outer clamp plate, the swing portion positioning side inner clamp plate 18, and the swing portion moving side inner clamp plate 16 are provided on the guide posts so as to move along the guide posts. The swing portion positioning side outer clamp plate 21 and the swing portion moving side outer clamp plate 15 slide on the swing portion mounting baseplate 19 along the guide posts; the swing portion positioning side inner clamp plate 18 and the swing portion moving side inner clamp plate 16 both slide on the swing portion mounting base plate 19 along the two guide posts 31 and the T-shaped grooves on the swing portion mounting base plate 19.
The swing part positioning side clamping oil cylinder 22 is fixed on the outer side of the swing part positioning side outer clamping plate 21, and the piston rod end of the swing part positioning side clamping oil cylinder 22 is fixed with the swing part positioning side inner clamping plate 18 through a nut; when the swing portion positioning side clamping cylinder 22 is thus actuated, the swing portion positioning side outer clamping plate 21 is slid along the guide post on the upper plane of the swing portion mounting base plate 19 between the swing portion positioning side support plate 20 and the swing portion intermediate support plate 17; the swing portion positioning side inner clamping plate 18 slides planarly on the swing portion mounting base plate 19 between the swing portion positioning side support plate 20 and the swing portion intermediate support plate 17 along the guide post 31 and the T-shaped groove; because the swing portion positioning side outer clamp plate 21 is movable and the swing portion positioning side clamp cylinder 22 is fixed to the outer side of the swing portion positioning side outer clamp plate 21, the swing portion positioning side clamp cylinder 22 is also movable to avoid interference between the cylinder body of the swing portion positioning side clamp cylinder 22 and the swing portion positioning side support plate 20, and therefore, a cylinder body through hole which is in clearance fit with the cylinder body of the swing portion positioning side clamp cylinder 22 is processed in the swing portion positioning side support plate 20 to allow the cylinder body of the swing portion positioning side clamp cylinder 22 to slide reciprocally with respect to the swing portion positioning side support plate 20.
The swing part moving side clamping oil cylinder 13 is fixed on the outer side of a swing part moving side outer clamping plate 15, and the piston rod end of the swing part moving side clamping oil cylinder 13 is fixed with a swing part moving side inner clamping plate 16 through a nut; when the swing portion moving-side clamp cylinder 13 is thus actuated, the swing portion moving-side outer clamp plate 15 is slid along the guide post 31 on the swing portion mounting base plate 19 between the swing portion moving-side support plate 14 and the swing portion intermediate support plate 17 in a planar manner; the swing portion moving side inner clamping plate 16 is slid planarly on the swing portion mounting base plate 19 between the swing portion moving side support plate 14 and the swing portion intermediate support plate 17 along the guide posts 31 and the T-shaped grooves; since the swing portion moving side outer clamp plate 15 is movable and the swing portion moving side clamp cylinder 13 is fixed to the outer side of the swing portion moving side outer clamp plate 15, the swing portion moving side clamp cylinder 13 is also movable to avoid interference of the cylinder body of the swing portion moving side clamp cylinder 13 with the swing portion moving side support plate 14, and therefore, a cylinder body through hole which is clearance-fitted to the cylinder body of the swing portion moving side clamp cylinder 13 is formed in the swing portion moving side support plate 14 to allow the cylinder body of the swing portion moving side clamp cylinder 13 to slide reciprocally with respect to the swing portion moving side support plate 14.
As shown in fig. 5, in the die for the heavy truck bending machine, after the part which is the weakest in stress, namely the clamping plate (the total thickness is 75mm) in the swinging part, is loaded with the maximum load, the stress generated by the clamping plate in the swinging part reaches the yield stress of the die material (CrWMn), so that the die bends the largest U-shaped beam for a long time, and the service life is greatly shortened; in order to meet the requirement of bending a middle clamping U-shaped beam, the thickness of the inner clamping plate is reduced by 30mm, which is not feasible; the swing side mold adopts a double-guide-column structure and a spatial concave-convex structure, then various numerical models are established for analysis, and the stress generated by the clamping plate in the swing part is far beyond the yield stress of a mold material (CrWMn); after multiple failures, the guide post and the T-shaped groove are adopted for composite guide, the guide is used at different positions of the clamping die, and finally the guide post is used for guiding the outer side of the bending part of the die and the T-shaped groove is used for guiding the inner side of the bending part of the die, so that the bending part of the die is enabled to be in a structureThe maximum stress generated by clamping the plate in the bent part of the structure under the condition of loading the maximum load is 6.266 multiplied by 108N/m2Less than 7.5 x 10 yield stress of the mold material (CrWMn)8N/m2(ii) a The internal clamping plate of the fixing part of the utility model generates 3.504 multiplied by 10 maximum stress under the condition of loading maximum load8N/m2Less than 7.5 x 10 yield stress of the mold material (CrWMn)8N/m2(ii) a Therefore, the bending die with the structure of the utility model can be used for a long time.
As shown in fig. 5, the fixed part intermediate support plate 37 is a reference for mounting and positioning of the entire production line, and two guide posts for fixing the fixed part are also not omitted from the viewpoint of structure and performance. On either side are fixed part guide post mounting holes 39 and fixed part guide post mounting holes 42 for mounting fixed part guide posts and supporting guide posts. Grooves 40 are symmetrically formed in both side surfaces of the middle portion of the fixed portion intermediate support plate 37, and intermediate process holes 41 are formed in the grooves 40 to avoid interference with the rod ends of the piston rods of the fixed portion positioning side sub-clamping cylinder 25 and the rod ends of the piston rods of the fixed portion moving side sub-clamping cylinder 33.
As shown in fig. 6, the fixed part positioning side inner clamp plate 29 is used to fix the stepped hole 43 of the fixed part positioning side main clamp cylinder piston rod in connection with the piston rod of the fixed part positioning side main clamp cylinder 24. The stepped hole 46 for fixing the piston rod of the fixed-portion positioning-side sub-clamping cylinder is fixedly connected to the piston rod of the fixed-portion positioning-side sub-clamping cylinder 25. A rectangular groove is formed in the inner side surface 48 of the fixing part positioning side inner clamping plate, a raised step surface 45 is arranged in the rectangular groove, the raised step surface 45 is lower than the inner side surface 48 of the fixing part positioning side inner clamping plate, and the raised step surface 45 is correspondingly embedded into the groove 40 in the fixing part intermediate supporting plate 37; the fixed portion moving side inner clamp plate 30 is completely symmetrical in part structure to the fixed portion positioning side inner clamp plate 29. When the bending die is contracted to the minimum width, the inner side surface 48 of the fixed part positioning side inner clamping plate and the corresponding surface of the fixed part moving side inner clamping plate 30 can be contacted together, so that the fixed part intermediate supporting plate 37 is just embedded into the rectangular grooves of the fixed part positioning side inner clamping plate 29 and the fixed part moving side inner clamping plate 30; the raised step surface 45 is intended to reduce the strength and stress of the recess 40 to the fixing-portion positioning-side inner clamping plate 29 to within the allowable range of the mold material; the sliding surface 49, which is in planar contact with the upper surface of the mounting base plate of the stationary part, has oil grooves to reduce sliding friction.
As shown in fig. 7, the swing portion intermediate support plate 17 and the fixed portion intermediate support plate 37 are the mounting and positioning references of the entire production line, and the swing portion guide post mounting holes 50 are used for mounting the swing portion guide posts and supporting the guide posts.
As shown in fig. 8, the swing portion positioning side inner clamping plate 18 is used to fix the stepped hole 54 of the swing portion positioning side clamping cylinder piston rod and the swing portion positioning side main clamping cylinder 22 to be connected and fixed; the positioning groove 53 for mounting the T-shaped groove guide block and the T-shaped groove guide block 38 are fastened together by bolts; an oil groove is processed on a sliding surface 55 contacted with the upper plane of the swinging part mounting base plate, so that the sliding friction force is reduced; a recess 52 fitted to the swing portion intermediate support plate 17 is provided on one side surface of the swing portion positioning side inner clamping plate 18. A recessed portion 52 fitted to the swing portion intermediate support plate 17 is provided on one side surface of the swing portion moving side inner clamping plate 16; under the action of the piston rod of the swing part positioning side clamping cylinder 22, the swing part positioning side inner clamping plate 18 can slide on the plane of the swing part mounting plate along the guide column and the T-shaped groove on the swing part mounting plate, when the bending die is contracted to the minimum width, namely the inner side surface 56 of the swing part positioning side inner clamping plate 18 and the corresponding surface of the swing part moving side inner clamping plate 16 (the part structure and the swing part positioning side inner clamping plate 18 are mirror-symmetrical) can be contacted together, so that the swing part middle supporting plate 17 is just embedded into the concave parts 52 of the swing part positioning side inner clamping plate and the swing part moving side inner clamping plate 16; the influence of the recesses 52 and the positioning grooves 53 for mounting the T-groove guide blocks on the strength and stress of the clamping plate 18 in the swing portion positioning side falls within the allowable range of the mold material.
When the bending die works, the automobile U-shaped beam 6 to be bent is conveyed into the special asymmetric bending die under the operation of auxiliary equipment, and the automobile U-shaped beam 6 to be bent is in place; the fixed part positioning side pair clamping oil cylinder 25 of the bending die drives a fixed part positioning side pair outer clamping plate 28 and a fixed part positioning side inner clamping plate 29. The fixing part positioning side main clamping oil cylinder 24 drives the fixing part positioning side main outer clamping plate 27 and the fixing part positioning side inner clamping plate 29 to clamp the wing plate of the automobile U-shaped beam 6 to be bent on the positioning side. The fixed part moving side sub-clamping cylinder 33 drives the fixed part moving side sub-outer clamping plate 32 and the fixed part moving side inner clamping plate 30. The fixed part moving side main clamping cylinder 12 carries the fixed part moving side main outer clamping plate 36 and the fixed part moving side inner clamping plate 30. Thus, the fixed part moving side inner clamping plate 30 slides outwards along the two guide columns 31 on the plane of the fixed part mounting base plate 35, the fixed part moving side auxiliary outer clamping plate 32 and the fixed part moving side main outer clamping plate 36 slide inwards along the two guide columns 31 on the plane of the fixed part mounting base plate 35, and the wing plate of the automobile U-shaped beam 6 to be bent on the moving side is clamped; the fixing part completes the clamping of the wing plates of the U-shaped beam to be bent.
A clamping oil cylinder 22 at the swing part positioning side of the bending die drives a swing part positioning side outer clamping plate 21 and a swing part positioning side inner clamping plate 18 to clamp a wing plate of the automobile U-shaped beam 6 to be bent at the positioning side; the swing portion moving side clamping cylinder 13 drives the swing portion moving side outer clamping plate 15 and the swing portion moving side inner clamping plate 16 so that the swing portion moving side inner clamping plate 16 slides on the swing portion mounting base plate 19 plane-outward along the guide posts 31 and the T-shaped grooves. The swing part moving side outer clamping plate 15 slides inwards on the plane of the swing part mounting base plate 19 along the guide column 31 and the T-shaped groove to clamp the wing plate of the automobile U-shaped beam 6 to be bent on the moving side; clamping a movable side wing plate of an automobile U-shaped beam 6 to be bent; the swing part completes clamping of a wing plate of the automobile U-shaped beam to be bent.
A main machine material pressing oil cylinder 5 (a girder bending main machine fixing part 1 and a girder bending main machine swinging part 3 are respectively one piece) presses down to tightly press the ventral surface of an automobile U-shaped beam 6 to be bent, and then a main machine swinging oil cylinder 7 (two pieces) drives the girder bending main machine swinging part 3 to swing along a main machine swinging rotating shaft 2, so that the bending of the automobile U-shaped beam 6 to be bent is realized.
After the bending is finished, firstly loosening the main machine material pressing oil cylinder 5 of the swinging part, then loosening the inner clamping plate 16 on the moving side of the swinging part and the outer clamping plate 15 on the moving side of the swinging part, and loosening the inner clamping plate 18 on the positioning side of the swinging part and the outer clamping plate 21 on the positioning side of the swinging part; then, the main machine material pressing oil cylinder 5 of the fixed part is loosened, and then the fixed part moving side inner clamping plate 30, the fixed part moving side main outer clamping plate 36, the fixed part moving side auxiliary outer clamping plate 32, the fixed part positioning side inner clamping plate 29, the fixed part positioning side main outer clamping plate 27 and the fixed part positioning side auxiliary outer clamping plate 28 are loosened; and the front clamping and conveying part continuously feeds the U-shaped beam forwards, and then the next bending is finished.
Claims (10)
1. A bending die applied to a middle truck automobile beam comprises a bending die fixing part and a bending die swinging part, and is characterized in that the bending die swinging part comprises a swinging part mounting bottom plate, a swinging part positioning side supporting plate, a swinging part middle supporting plate and a swinging part moving side supporting plate, wherein the swinging part positioning side supporting plate, the swinging part middle supporting plate and the swinging part moving side supporting plate are fixedly arranged in a positioning groove of the swinging part mounting bottom plate; the swing part positioning side supporting plate, the swing part middle supporting plate and the swing part moving side supporting plate are fixedly connected together by a guide column; an inverted T-shaped groove parallel to the axis of the guide post is processed on the mounting bottom plate of the swinging part; processing grooves on the bottom surfaces of the swing part positioning side inner clamping plate and the swing part moving side inner clamping plate; respectively fastening the T-shaped groove guide blocks inserted into the inverted T-shaped grooves into grooves at the bottoms of the swing part positioning side inner clamping plate and the swing part moving side inner clamping plate; the swing part positioning side outer clamping plate, the swing part moving side outer clamping plate, the swing part positioning side inner clamping plate and the swing part moving side inner clamping plate are movably arranged on the guide post along the guide post; the swing part positioning side outer clamping plate and the swing part moving side outer clamping plate slide on the swing part mounting base plate along the guide column; the swing portion moving side outer clamp plate and the swing portion moving side inner clamp plate slide on the swing portion mounting base plate along the guide posts and the T-shaped grooves on the swing portion mounting base plate.
2. The bending die for the middle truck automobile beam as claimed in claim 1, wherein the swing portion middle support plate is adjacent to the swing portion positioning side support plate.
3. The bending die applied to the middle truck automobile girder according to claim 1, further comprising a swing part positioning side clamping cylinder, wherein the swing part positioning side clamping cylinder is fixed on the outer side of the swing part positioning side outer clamping plate, and a rod end of a piston rod of the swing part positioning side clamping cylinder is fixed with the swing part positioning side inner clamping plate through a nut; and processing a cylinder body through hole which is in clearance fit with the cylinder body of the positioning side clamping cylinder of the swinging part on the positioning side supporting plate of the swinging part, so that the cylinder body of the positioning side clamping cylinder of the swinging part can slide in a reciprocating manner relative to the positioning side supporting plate of the swinging part.
4. The bending die applied to the middle truck automobile beam as claimed in claim 1, further comprising a swing part moving side clamping cylinder, wherein the swing part moving side clamping cylinder is fixed on the outer side of the swing part moving side outer clamping plate, and the rod end of the swing part moving side clamping cylinder piston rod is fixed with the swing part moving side inner clamping plate through a nut; and processing a cylinder body through hole which is in clearance fit with the cylinder body of the moving side clamping cylinder of the swinging part on the moving side supporting plate of the swinging part, so that the cylinder body of the moving side clamping cylinder of the swinging part can slide in a reciprocating manner relative to the moving side supporting plate of the swinging part.
5. The bending die for the middle truck automobile beam as claimed in claim 1, wherein the swing portion positioning side support plate, the swing portion intermediate support plate and the swing portion moving side support plate are fixed by bolts in corresponding recesses on the upper surface of the fixing portion mounting base plate.
6. The bending die for the middle truck automobile beam as claimed in claim 1, wherein a concave portion adapted to the middle support plate of the swing portion is provided on one side surface of the inner clamping plate on the positioning side of the swing portion; a concave part matched with the middle supporting plate of the swing part is arranged on one side surface of the clamping plate in the moving side of the swing part; the swing portion intermediate support plate is fitted into the recessed portions of the swing portion positioning side inner clamp plate and the swing portion moving side inner clamp plate.
7. The bending die for the middle truck automobile beam as claimed in claim 1, wherein the bending die fixing portion comprises a fixing portion mounting base plate, and a fixing portion positioning side supporting plate, a fixing portion intermediate supporting plate and a fixing portion moving side supporting plate which are disposed in the positioning grooves of the fixing portion mounting base plate, the fixing portion positioning side supporting plate, the fixing portion intermediate supporting plate and the fixing portion moving side supporting plate being fixed in the positioning grooves corresponding to the upper plane of the fixing portion mounting base plate by bolts; the fixed part middle support plate is close to the fixed part positioning side support plate; the fixed part intermediate support plate and the swinging part intermediate support plate are aligned; the fixed part positioning side supporting plate, the fixed part middle supporting plate and the fixed part moving side supporting plate are fixedly connected together by two guide columns; a fixed part positioning side auxiliary outer clamping plate, a fixed part positioning side main outer clamping plate and a fixed part positioning side inner clamping plate which are positioned between the fixed part positioning side supporting plate and the fixed part middle supporting plate are arranged on the guide column; the fixed part positioning side auxiliary outer clamping plate, the fixed part positioning side main outer clamping plate and the fixed part positioning side inner clamping plate slide on the fixed part mounting base plate along the guide columns; the guide post is provided with a fixed part moving side auxiliary outer clamping plate, a fixed part moving side main outer clamping plate and a fixed part moving side inner clamping plate which are positioned between a fixed part middle supporting plate and a fixed part moving side supporting plate, and the fixed part moving side auxiliary outer clamping plate, the fixed part moving side main outer clamping plate and the fixed part moving side inner clamping plate all slide on the fixed part mounting bottom plate along the guide post.
8. The bending die for the middle truck automobile beam as claimed in claim 7, wherein the middle of the middle support plate of the fixing portion is symmetrically provided with grooves, the inner side surface of the inner clamping plate of the positioning side of the fixing portion is provided with a rectangular groove, a raised step surface is arranged in the rectangular groove, the raised step surface is lower than the inner side surface of the inner clamping plate of the positioning side of the fixing portion, and the raised step surface is correspondingly embedded in the groove of the middle support plate of the fixing portion; the fixed part intermediate support plate is just inserted into the rectangular grooves of the fixed part positioning side inner clamping plate and the fixed part moving side inner clamping plate.
9. The bending die applied to the middle truck automobile beam as claimed in claim 6, further comprising a fixing part positioning side auxiliary clamping cylinder and a fixing part positioning side main clamping cylinder, wherein the fixing part positioning side auxiliary clamping cylinder is fixed on the outer side surface of the fixing part positioning side auxiliary outer clamping plate, and the rod end of the piston rod of the fixing part positioning side auxiliary clamping cylinder is fixed with the fixing part positioning side inner clamping plate through a nut; when the fixed part positioning side auxiliary clamping cylinder acts, the fixed part positioning side auxiliary outer clamping plate and the fixed part positioning side inner clamping plate can slide on the upper plane of the fixed part mounting bottom plate between the fixed part positioning side supporting plate and the fixed part middle supporting plate along the guide column; because the fixed part positioning side auxiliary outer clamping plate is movable, and the fixed part positioning side auxiliary clamping oil cylinder is fixed on the outer side of the fixed part positioning side auxiliary outer clamping plate, the fixed part positioning side auxiliary clamping oil cylinder is also movable, and the interference between the fixed part positioning side auxiliary clamping oil cylinder body and the fixed part positioning side supporting plate is avoided, so that a cylinder body through hole in clearance fit with the fixed part positioning side auxiliary clamping oil cylinder body is processed on the fixed part positioning side supporting plate, and the fixed part positioning side auxiliary clamping oil cylinder body slides in a reciprocating manner relative to the fixed part positioning side supporting plate; the fixed part positioning side main clamping oil cylinder is fixed on the outer side surface of the fixed part positioning side main outer clamping plate, and the rod end of a piston rod of the fixed part positioning side main clamping oil cylinder is fixed with the fixed part positioning side inner clamping plate through a nut; the fixed part mounting bottom plate is fixedly provided with a fixed part moving side main clamping oil cylinder guide seat, and the fixed part moving side main clamping oil cylinder body is in clearance fit with the fixed part moving side main clamping oil cylinder guide seat.
10. The bending die for the middle truck automobile beam as claimed in claim 6, further comprising a fixed part moving side pair clamping cylinder, wherein the fixed part moving side pair clamping cylinder is fixed on the outer side surface of the fixed part moving side pair outer clamping plate, and the rod end of the fixed part moving side pair clamping cylinder piston rod is fixed with the fixed part moving side inner clamping plate through a nut; processing a cylinder body through hole which is in clearance fit with the cylinder body of the fixed part positioning side auxiliary clamping oil cylinder on the fixed part moving side supporting plate, and enabling the fixed part positioning side auxiliary clamping oil cylinder to slide in a reciprocating manner relative to the fixed part moving side supporting plate; the fixed part moving side main clamping oil cylinder is fixed on the outer side of the fixed part moving side main outer clamping plate, and the rod end of a piston rod of the fixed part moving side main clamping oil cylinder is fixed with the fixed part moving side inner clamping plate through a nut; the fixed part mounting bottom plate is fixedly provided with a fixed part moving side main clamping oil cylinder guide seat, and the fixed part moving side main clamping oil cylinder body is in clearance fit with the fixed part moving side main clamping oil cylinder guide seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122775191.7U CN216226301U (en) | 2021-11-13 | 2021-11-13 | Bending die applied to middle truck automobile beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122775191.7U CN216226301U (en) | 2021-11-13 | 2021-11-13 | Bending die applied to middle truck automobile beam |
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| Publication Number | Publication Date |
|---|---|
| CN216226301U true CN216226301U (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122775191.7U Active CN216226301U (en) | 2021-11-13 | 2021-11-13 | Bending die applied to middle truck automobile beam |
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| Country | Link |
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| CN (1) | CN216226301U (en) |
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2021
- 2021-11-13 CN CN202122775191.7U patent/CN216226301U/en active Active
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