CN216369639U - Stamping and bending device for crane connecting piece - Google Patents

Abstract

The utility model relates to a stamping and bending device for a crane connecting piece, which comprises a workbench, wherein four corners of the top surface of the workbench are fixedly connected with vertically and oppositely distributed supporting legs, a horizontally distributed top plate is fixedly connected between the top ends of the four supporting legs, a vertically distributed hydraulic oil cylinder is fixedly connected with the bottom surface of the top plate, an upper die base is fixedly connected with the bottom end of a piston rod of the hydraulic oil cylinder, a lower die base is detachably and fixedly connected on the workbench right below the upper die base, the upper die base comprises an upper die plate, the upper die plate is fixedly connected with the piston rod of the hydraulic oil cylinder, a concave die core is detachably and fixedly connected on the bottom surface of the upper die plate, the lower die base comprises a horizontally distributed lower die plate, the lower die plate is detachably and fixedly connected with the workbench, two horizontally and oppositely distributed supporting bases are fixedly connected on two sides of the top surface of the lower die plate, and a groove structure is formed between the two supporting bases and the lower die plate, the utility model can improve the production efficiency of the crane connecting piece; the production quality of the crane connecting piece can be improved.

Description

Stamping and bending device for crane connecting piece

Technical Field

The utility model belongs to the technical field of cranes, and particularly relates to a stamping and bending device for a crane connecting piece.

Background

Fig. 7 is a schematic diagram of a final structure of a crane connecting piece, which is clamped at two ends of a crane main beam through U-shaped slots, specifically, clamped at two ends of a crane main beam bottom plate through U-shaped slots, and the crane connecting piece is mounted on the main beam through bolts to prevent an electric hoist from impacting an end beam when the electric hoist is out of control, which is referred to as an anti-collision device of an electric hoist of a crane in the prior patent No. 202120657619.5.

At present, when the crane connecting piece is produced and processed, a plurality of steel plates are used for assembly welding, a cutting machine is needed to cut the steel plates to form cuts before the assembly welding, so that U-shaped slotted holes shown in figure 7 can be formed between the cuts after the steel plates are assembled and welded, and by adopting the production and processing mode, all the steel plates need to be welded in sequence, so that the production efficiency is low; in addition, although the connection positions between the steel plates can be fixedly connected by adopting a welding mode, if the welding is not firm, the production quality of the crane connecting piece is also reduced, so that the defects and shortcomings in the prior art still exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stamping and bending device for a crane connecting piece, which solves the problems that the production efficiency is low and the production quality of the crane connecting piece is reduced when the crane connecting piece shown in figure 7 is produced and processed at present.

In order to solve the problems, the utility model adopts the technical scheme that:

the utility model provides a punching press bending device for hoist connecting piece, includes the workstation that the level set up, its characterized in that: four corners of the top surface of the workbench are fixedly connected with supporting legs which are vertically and oppositely distributed, top plates which are horizontally distributed are fixedly connected between the top ends of the four supporting legs, the bottom surface of the top plate is fixedly connected with a vertically distributed hydraulic oil cylinder, the bottom end of a piston rod of the hydraulic oil cylinder is fixedly connected with an upper die base, a lower die holder is detachably and fixedly connected on the workbench right below the upper die holder, the upper die holder comprises an upper die plate which is horizontally distributed and is coaxially arranged with the hydraulic oil cylinder, the upper template is fixedly connected with a piston rod of the hydraulic oil cylinder, a concave convex mold core is detachably and fixedly connected on the bottom surface of the upper template, the lower die base comprises a lower die plate which is horizontally distributed, the lower die plate is detachably and fixedly connected with the workbench, two supporting bases which are horizontally distributed relatively are fixedly connected to two sides of the top surface of the lower die plate, and a groove structure which is located under the male die core and matched with the male die core is formed between the two supporting bases and the lower die plate.

Further, fixedly connected with buffer all can be dismantled at both ends in the groove structure, buffer all includes the connecting plate of horizontal distribution, fixed connection can be dismantled between the connecting plate both ends and groove structure's the tank bottom face, and the intermediate position of connecting plate all is provided with the rubber buffer block of vertical distribution, is provided with the buffer board of horizontal distribution between two rubber buffer blocks, the buffer board is located groove structure.

Further, the intermediate position level of groove structure tank bottom surface sets up the notch groove that runs through the lower bolster, the both ends in notch groove all are provided with the connecting bolt of vertical distribution, connecting bolt's head all is located the transverse groove in notch groove, and threaded connection has lock nut, connecting bolt and connecting plate threaded connection behind vertical groove, connecting plate, the rubber buffer piece and the buffer board of connecting bolt passing notch groove in proper order respectively.

Furthermore, the screw rods of the connecting bolts between the rubber buffer blocks and the buffer plates are all sleeved with horizontally distributed base plates.

Furthermore, the two ends of the connecting plate are connected with the bottom surface of the groove structure groove through vertically distributed first countersunk head bolts.

Further, all be connected through the second countersunk head bolt of vertical distribution between convex mould core top surface both sides and the cope match-plate pattern, and the second countersunk head bolt quantity that is located convex mould core homonymy is a plurality of, and a plurality of second countersunk head bolts distribute along convex mould core length direction equidistance.

Furthermore, two reinforcing ribs which are horizontally distributed oppositely are fixedly connected between each supporting base and the lower template.

By adopting the technical scheme, the utility model has the beneficial effects that:

according to the utility model, the workbench, the supporting legs, the top plate, the hydraulic oil cylinder, the upper die base and the lower die base are arranged to form the stamping and bending device, so that a steel plate to be stamped and bent can be stamped and bent to form the crane connecting piece, and compared with a welding mode, the stamping forming can save time, thereby improving the production efficiency of the crane connecting piece; secondly, this hoist connecting piece is bent by a steel sheet punching press and is formed, can improve this hoist connecting piece's structural strength like this to improve this hoist connecting piece's production quality.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a portion of the apparatus of FIG. 1;

FIG. 3 is a second schematic structural view of a portion of the apparatus shown in FIG. 1;

FIG. 4 is a schematic structural view of a portion of the apparatus of FIG. 3;

FIG. 5 is a schematic structural diagram of a steel plate to be stamped and bent;

FIG. 6 is a schematic structural diagram of a crane connecting piece formed after stamping and bending a steel plate to be stamped and bent;

fig. 7 is a schematic view of the final structure of the crane attachment.

Reference numerals: 1. an upper die holder; 11. mounting a template; 12. a male mold core; 13. a second countersunk bolt; 2. a lower die holder; 21. a lower template; 22. a support base; 23. a groove structure; 24. an annular groove is formed on the seam; 25. reinforcing ribs; 3. a buffer device; 31. a connecting plate; 32. a rubber buffer block; 33. a buffer plate; 34. a connecting bolt; 35. locking the nut; 36. a base plate; 37. a first countersunk bolt; 4. a hydraulic cylinder; 5. a work table; 51. a support leg; 52. a top plate; 6. bending the steel plate to be punched; 61. a strip-shaped through hole; 7. a crane attachment; 71. u-shaped slotted holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

As shown in figures 1 to 4, the utility model provides a stamping and bending device for crane connecting pieces, which comprises a workbench 5 which is horizontally arranged, four corners of the top surface of the workbench 5 are fixedly connected with supporting legs 51 which are vertically and oppositely distributed, a top plate 52 which is horizontally distributed is fixedly connected between the top ends of the four supporting legs 51, a hydraulic oil cylinder 4 which is vertically distributed is fixedly connected with the bottom surface of the top plate 52, an upper die base 1 is fixedly connected with the bottom end of a piston rod of the hydraulic oil cylinder 4, the hydraulic oil cylinder 4 is a power source for driving the upper die base 1 to ascend and descend, a lower die base 2 is detachably and fixedly connected on the workbench 5 right below the upper die base 1, the upper die base 1 comprises an upper die plate 11 which is horizontally distributed and coaxially arranged with the hydraulic oil cylinder 4, the upper die plate 11 is fixedly connected with the piston rod of the hydraulic oil cylinder 4, a convex die core 12 which is concave is detachably and fixedly connected on the bottom surface of the upper die plate 11, the two sides of the top surface of the male die core 12 are connected with the upper die plate 11 through second countersunk head bolts 13 which are vertically distributed, the number of the second countersunk head bolts 13 which are positioned on the same side of the male die core 12 is multiple, the multiple second countersunk head bolts 13 are distributed at equal intervals along the length direction of the male die core 12, when the upper die plate 11 is connected with the male die core 12, screw rods of the second countersunk head bolts 13 penetrate through the upper die plate 11 and then are in threaded connection with the male die core 12, the heads of the second countersunk head bolts 13 are positioned in countersunk holes formed in the upper die plate 11, the upper die plate 11 is connected with the male die core 12 through the second countersunk head bolts 13, and when the male die core 12 is seriously worn by stamping, the male die core 12 can be conveniently replaced; the lower die base 2 comprises a lower die plate 21 which is horizontally distributed, the lower die plate 21 is detachably and fixedly connected with the workbench 5, four corners of the lower die plate 21 are connected with the workbench 5 through countersunk bolts which are vertically distributed, two sides of the top surface of the lower die plate 21 are fixedly connected with two supporting bases 22 which are horizontally distributed oppositely, a groove structure 23 which is positioned under the convex die core 12 and matched with the convex die core 12 is formed between the two supporting bases 22 and the lower die plate 21, and the lower die base 2 and the workbench 5 can be conveniently assembled on one hand and can be conveniently replaced when the lower die base 2 is damaged on the other hand; specifically, the production raw materials of the utility model are the steel plates 6 to be punched and bent as shown in fig. 5, the steel plates 6 to be punched and bent are provided with strip-shaped through holes 61, when in use, the steel plates 6 to be punched and bent are horizontally placed on the two supporting bases 22, and two ends of the steel plates 6 to be punched and bent are respectively flush with the edges of the supporting bases 22, when in punching and bending, the steel plates 6 to be punched and bent can be punched and bent into the crane connecting piece 7 as shown in fig. 6 by matching the convex mold core 12 with the groove structure 23, the crane connecting piece 7 formed after punching is positioned in the groove structure 23, and the strip-shaped through holes 61 are just right formed into the U-shaped slot holes 71; the workbench 5, the supporting legs 51, the top plate 52, the hydraulic oil cylinder 4, the upper die base 1 and the lower die base 2 are arranged to form a stamping and bending device, the steel plate 6 to be stamped and bent can be stamped and bent to form the crane connecting piece 7, and compared with a stamping and welding mode, time can be saved, so that the production efficiency of the crane connecting piece 7 is improved; secondly, this hoist connecting piece 7 is bent by a steel sheet punching press and is formed, can improve this hoist connecting piece 7's structural strength like this to improve this hoist connecting piece 7's production quality.

Further, as shown in fig. 1, 3 and 4, the buffer devices 3 are detachably and fixedly connected to both ends in the groove structure 23, each buffer device 3 includes a connecting plate 31 which is horizontally distributed, both ends of the connecting plate 31 are detachably and fixedly connected to the bottom surface of the groove structure 23, specifically, both ends of the connecting plate 31 are connected to the bottom surface of the groove structure 23 through first countersunk bolts 37 which are vertically distributed, when the connecting plate 31 is connected to the bottom surface of the groove structure 23, the first countersunk bolts 37 penetrate through the connecting plate 31 and then are in threaded connection with the bottom surface of the groove structure 23, and the heads of the first countersunk bolts 37 are located in countersunk holes formed in the connecting plate 31; the middle positions of the connecting plates 31 are respectively provided with vertically distributed rubber buffer blocks 32, a horizontally distributed buffer plate 33 is arranged between the two rubber buffer blocks 32, the buffer plates 33 are positioned in the groove structures 23, specifically, the rubber buffer blocks 32 can deform under the action of external force, when the hydraulic oil cylinder 4 drives the male die core 12 to descend, the male die core 12 is firstly abutted against the steel plate 6 to be punched and bent, then the male die core 12 continues to descend to enable the steel plate 6 to be punched and bent to be bent in the groove structures 23, in the bending process, the steel plate 6 to be punched and bent is abutted against the buffer plates 33, then the buffer plates 33 extrude the rubber buffer blocks 32 to enable the rubber buffer blocks 32 to deform to have a buffering effect, and after the punching is finished, the rubber buffer blocks 32 reset can enable the crane connecting piece 7 formed after the punching to be ejected out of the groove structures 23; in addition, because buffer 3 and groove structure 23 can dismantle fixed connection, so can be convenient for assemble buffer 3 and die holder 2, still be convenient for change buffer 3.

Further, as shown in fig. 1, 3 and 4, a notch groove 24 penetrating through the lower mold plate 21 is horizontally formed in the middle position of the bottom surface of the groove structure 23, connecting bolts 34 vertically distributed at both ends of the notch groove 24 are provided, the heads of the connecting bolts 34 are located in the transverse grooves of the notch groove 24, the screws of the connecting bolts 34 respectively penetrate through the vertical grooves of the notch groove 24, the connecting plate 31, the rubber buffer block 32 and the buffer plate 33 in sequence and are in threaded connection with locking nuts 35, the connecting bolts 34 are in threaded connection with the connecting plate 31, specifically, the rubber buffer block 32 and the buffer plate 33 are sleeved on the connecting bolts 34 and can be detached, when the buffer device 3 is installed, the connecting bolts 34 are firstly in threaded connection with the connecting plate 31, then the heads of the connecting bolts 34 penetrate into the transverse grooves of the notch groove 24, the connecting plate 31 is slid to the installation position along the notch groove 24, and then the connecting plate 31 is connected with the bottom surface of the groove structure 23 through first countersunk bolts 37, then, the screw of the connecting bolt 34 is rotated to tighten the connecting bolt 34, then the rubber buffer block 32 and the buffer plate 33 are sequentially sleeved on the screw of the connecting bolt 34, and finally the lock nut 35 is abutted against the buffer plate 33 and tightened to complete the installation of the buffer device 3, so that the buffer device 3 can be conveniently installed, and in addition, when any part in the buffer device 3 is damaged, for example, the rubber buffer block 32, the buffer plate 33 and the like are conveniently replaced; at this time, when placing the bent steel plate 6 to be punched, it is necessary to place it horizontally on the support base 22 between the two connecting bolts 34.

Further, as shown in fig. 1, 3 and 4, the screw rods of the connecting bolts 34 between the rubber buffer blocks 32 and the buffer plates 33 are all sleeved with horizontally distributed backing plates 36, specifically, the distance between the top surface of the buffer plate 33 and the top notch of the groove structure 23 can be adjusted by arranging the backing plates 36, so that after the rubber buffer blocks 32 are extruded and deformed, the crane connecting piece 7 formed after stamping can be just positioned in the groove structure 23; the number of the backing plates 36 depends on the actual situation.

Further, as shown in fig. 1 and 3, two reinforcing ribs 25 which are horizontally and relatively distributed are fixedly connected between each supporting base 22 and the lower die plate 21, and the strength of connection between the supporting base 22 and the lower die plate 21 can be improved by arranging the reinforcing ribs 25, so that the stability of the overall structure of the lower die base 2 is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and the utility model is intended to be covered by the appended claims. The scope of the utility model is defined by the appended claims and equivalents.

Claims (6)

1. The utility model provides a punching press bending device for hoist connecting piece, includes the workstation that the level set up, its characterized in that: the four corners of the top surface of the workbench are fixedly connected with supporting legs which are vertically and oppositely distributed, a top plate which is horizontally distributed is fixedly connected between the top ends of the four supporting legs, the bottom surface of the top plate is fixedly connected with a hydraulic cylinder which is vertically distributed, the bottom end of a piston rod of the hydraulic cylinder is fixedly connected with an upper die base, a lower die base is detachably and fixedly connected on the workbench right below the upper die base, the upper die base comprises an upper die plate which is horizontally distributed and coaxially arranged with the hydraulic cylinder, the upper die plate is fixedly connected with the piston rod of the hydraulic cylinder, a concave die core is detachably and fixedly connected on the bottom surface of the upper die plate, the lower die base comprises a horizontally distributed lower die plate, the lower die plate is detachably and fixedly connected with the workbench, two supporting bases which are horizontally and oppositely distributed are fixedly connected on two sides of the top surface of the lower die plate, and a groove structure which is positioned right below the convex die core and matched with the convex die core is formed between the two supporting bases and the lower die plate, fixedly connected with buffer all can be dismantled at both ends in the groove structure, buffer all includes horizontally distributed's connecting plate, the connecting plate both ends all with can dismantle fixed connection between groove structure's the tank bottom surface, the intermediate position of connecting plate all is provided with the rubber buffer block of vertical distribution, is provided with horizontally distributed's buffer board between two rubber buffer blocks, the buffer board is located groove structure.

2. The punch bending device for crane connectors according to claim 1, wherein: the groove structure tank bottom surface intermediate position level is seted up and is run through the notch groove of lower bolster, the both ends in notch groove all are provided with the connecting bolt of vertical distribution, connecting bolt's head all is located the horizontal inslot in notch groove, and threaded connection has lock nut, connecting bolt and connecting plate threaded connection behind vertical groove, connecting plate, rubber buffer block and the buffer board of connecting bolt in the notch groove of crossing in proper order respectively.

3. The punch bending device for crane connectors according to claim 2, wherein: and the screw rods of the connecting bolts between the rubber buffer blocks and the buffer plates are all sleeved with horizontally distributed base plates.

4. The punch bending device for crane connectors according to claim 1, wherein: the two ends of the connecting plate are connected with the bottom surface of the groove structure groove through vertically distributed first countersunk head bolts.

5. The punch bending device for crane connectors according to claim 1, wherein: all be connected through vertical distribution's second countersunk head bolt between convex mould core top surface both sides and the cope match-plate pattern, and the second countersunk head bolt quantity that is located convex mould core homonymy is a plurality of, and a plurality of second countersunk head bolts distribute along convex mould core length direction equidistance.

6. The punch bending device for crane connectors according to claim 1, wherein: two reinforcing ribs which are horizontally distributed relatively are fixedly connected between each supporting base and the lower template.

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