CN215089944U

CN215089944U - Bending machine

Info

Publication number: CN215089944U
Application number: CN202121028711.1U
Authority: CN
Inventors: 屠建国; 熊国光; 屠亮; 屠小波
Original assignee: Sichuan Jingfeng Machinery Co ltd
Current assignee: Sichuan Jingfeng Machinery Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-12-10
Anticipated expiration: 2031-05-13

Abstract

The utility model provides a bending machine, which comprises a base, wherein the upper surface of the base is symmetrically provided with two frames, a fixed workbench is fixedly arranged between the two frames, an upper die which is connected with the frames in a sliding way is arranged above the fixed workbench, a turnover workbench which is rotationally connected with the frames is arranged at the front side of the fixed workbench, and a first driving piece for driving the upper die is arranged between the upper die and the base; still install the first pivot between two frames including rotating, wherein: a connecting rod assembly is arranged between the first driving piece and the upper die and comprises a first connecting rod and a second connecting rod which are fixedly connected with the first rotating shaft respectively, the first connecting rod is rotatably connected with the first driving piece, the free end of the second connecting rod is rotatably connected with a second driving piece, and the second driving piece is rotatably connected to the upper die. The utility model discloses a first driving piece cooperation second driving piece realizes going up the mould to the firm fixed of panel, is favorable to improving the processingquality of panel.

Description

Bending machine

Technical Field

The utility model relates to a hem equipment technical field particularly, relates to a bender.

Background

Bending is the process of bending a metal sheet along a straight line or even folding it to obtain a workpiece with a certain included angle or arc, which is generally carried out industrially using bending machines. The bending machine can be manual or mechanical, the working principle is that the plate is fixed on a fixed workbench, other parts of the plate are erected on a turnover workbench, and after preparation work is completed, the turnover workbench is turned over for a certain angle to realize bending of the plate. In practice, it is found that the forming die of the existing bending machine can cause the situation that the plates are not firmly fixed in the using process, which can lead to the deterioration of the bending quality of the plates.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to provide a bending machine, its structural design is reasonable, can be with the firm fixed of panel, is favorable to improving the quality of bending of panel.

The embodiment of the utility model discloses a realize through following technical scheme:

a bending machine comprises a base, wherein two racks are symmetrically arranged on the upper surface of the base, a fixed workbench is fixedly arranged between the two racks, an upper die which is in sliding connection with the racks is arranged above the fixed workbench, a turnover workbench which is in rotating connection with the racks is arranged on the front side of the fixed workbench, and a first driving piece for driving the upper die is arranged between the upper die and the base; still including rotate install in first pivot between two frames, wherein: a connecting rod assembly is arranged between the first driving piece and the upper die and comprises a first connecting rod and a second connecting rod which are fixedly connected with the first rotating shaft respectively, the first connecting rod is rotatably connected with the first driving piece, the free end of the second connecting rod is rotatably connected with a second driving piece, and the second driving piece is rotatably connected to the upper die.

According to a preferred embodiment, the ends of the upper mould are slidingly connected to the frame adjacent thereto by means of guide assemblies; and a guide sliding groove matched with the guide assembly is arranged on the rack.

According to a preferred embodiment, the guide assembly comprises a sliding portion and a connecting portion, wherein: the sliding part comprises a connecting block, a clamping groove is arranged on the side surface of the connecting block close to the connecting part, and a sliding block matched with the guide sliding groove is arranged on the side surface of the connecting block far away from the connecting part; the connecting part comprises a connecting plate fixedly connected with the upper die and a clamping block which is arranged on the connecting plate and matched with the clamping groove; the upper surface of the connecting block is provided with a plurality of screw holes, compression bolts are embedded in the screw holes, and when the clamping block is embedded in the clamping groove, the compression bolts are abutted to the clamping block; the second driving piece is rotatably connected with the connecting block.

According to a preferred embodiment, a third driving member for driving the turnover table is arranged between the turnover table and the base; a second rotating shaft which is rotatably connected with the rack is arranged at the end part of the turnover workbench; the end part of the second rotating shaft extending to the outer side of the rack is provided with an angle positioning block.

According to a preferred embodiment, an adjusting frame is fixedly arranged at the end part of the second rotating shaft, which is positioned at the inner side of the frame; the appearance of this alignment jig is L form, disposes in the vertical section of this alignment jig and is used for fixing the connecting bolt of upset workstation, dispose in the horizontal segment of this alignment jig and be used for the fine setting the adjusting bolt of upset workstation.

According to a preferred embodiment, the turnover worktable comprises a supporting part and a working part, the working part is detachably connected with the supporting part, and the supporting part is respectively connected with the adjusting frame and the third driving part.

According to a preferred embodiment, the first, second and third drive members may each be one of a pneumatic cylinder and a hydraulic cylinder.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

the utility model discloses the first connecting rod and the second connecting rod that set up play the arm of force effect, under the unchangeable circumstances of first driving piece model, effect through link assembly can make first driving piece exert bigger effort to last mould, thereby compress tightly panel better, meanwhile, make to go up the mould when arriving first limit and compress tightly the position at the drive of only through first driving piece, because the influence of factors such as mechanical assembling and structural error, first limit compresses tightly the position this moment and not theoretical limit and compresses tightly the position, start the second driving piece this moment, further drive the mould and be close to fixed station in its shrink, compress tightly the position with the infinite theoretical limit of approaching, thereby reach better compress tightly the effect, and then it is more firm with panel is fixed, be favorable to promoting the processingquality of product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a cross-sectional view of section A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion of the structure shown at B in FIG. 2;

fig. 4 is a schematic view of a first three-dimensional structure of the present invention;

fig. 5 is a schematic view of a second three-dimensional structure of the present invention;

fig. 6 is a schematic view of a first three-dimensional structure of the guide assembly of the present invention;

fig. 7 is a schematic view of a second three-dimensional structure of the middle guide assembly of the present invention.

Icon: 1-base, 2-first driving piece, 3-third driving piece, 4-reinforcing column, 5-turnover workbench, 51-supporting part, 52-working part, 6-adjusting frame, 7-guiding component, 71-sliding part, 711-clamping groove, 712-connecting block, 713-sliding block, 714-fork frame, 715-compression bolt, 716-screw hole, 72-connecting part, 721-connecting plate, 722-clamping block, 8-frame, 9-upper die, 10-guiding groove, 11-first connecting rod, 12-first rotating shaft, 13-second connecting rod, 14-second driving piece, 15-fixed workbench, 16-second rotating shaft, 17-angle positioning block, 18-adjusting bolt and 19-connecting bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, a bending machine includes a base 1, two frames 8 are symmetrically disposed on an upper surface of the base 1, a fixed workbench 15 is fixedly disposed between the two frames 8, an upper die 9 slidably connected to the frames 8 is disposed above the fixed workbench 15, a turnover workbench 5 rotatably connected to the frames 8 is disposed on a front side of the fixed workbench 15, and a first driving member 2 for driving the upper die 9 is disposed between the upper die 9 and the base 1. It also includes a first rotating shaft 12 rotatably mounted between the two frames 8, wherein: a connecting rod assembly is arranged between the first driving part 2 and the upper die 9, the connecting rod assembly comprises a first connecting rod 11 and a second connecting rod 13 which are respectively fixedly connected with a first rotating shaft 12, the first connecting rod 11 is rotatably connected with the first driving part 2, the free end of the second connecting rod 13 is rotatably connected with a second driving part 14, and the second driving part 14 is rotatably connected with the upper die 9. As shown in fig. 2 and 3, when the first driving member 2 retracts, the first link 11 rotates counterclockwise around the first rotating shaft 12, so as to drive the first rotating shaft 12 to rotate counterclockwise around the central axis thereof, and further drive the second link 13 to rotate counterclockwise, and at this time, the movement of the first driving member 2 is transmitted to the upper mold 9 through the second driving member 14, and is driven to ascend in a manner of sliding relative to the frame 8. After the staff will wait to process panel and place on fixed work platform 15, first driving piece 2 extension is in order to drive first connecting rod 11 around first pivot 12 clockwise rotation to drive second connecting rod 13 clockwise rotation, and then descend with the gliding mode of relative frame 8 through mould 9 in the pulling of second driving piece 14, thereby cooperation fixed work platform 15 will wait to process panel and compress tightly fixedly. In the process, the first connecting rod 11 and the second connecting rod 13 play a role of force arm, and under the condition that the type of the first driving part 2 is unchanged, the first driving part 2 can apply larger acting force to the upper die 9 through the action of the connecting rod assembly, so that the plate can be well pressed. Meanwhile, when the upper die 9 reaches the first limit compression position only by the driving of the first driving part 2, due to the influence of factors such as mechanical assembly and structural errors, the first limit compression position at the moment is not the theoretical limit compression position, the second driving part 14 is started at the moment, the upper die 9 is further driven to approach the fixed workbench 15 while the upper die contracts, the theoretical limit compression position is infinitely approached, a better compression effect is achieved, the plate is fixed more firmly, and the processing quality of the product is improved.

In this embodiment, in order to prevent the upper mold 9 from being displaced in the horizontal direction with respect to the fixed table 15 before and after the movement, as shown in fig. 2, 4 and 5, the end of the upper mold 9 is slidably connected to the frame 8 adjacent thereto through the guide assembly 7. The frame 8 is provided with a guide chute 10 matched with the guide component 7. Further, as shown in fig. 6 and 7, the guide assembly 7 includes a sliding portion 71 and a connecting portion 72, wherein: the sliding part 71 comprises a connecting block 712, a clamping groove 711 is arranged on the side surface of the connecting block 712 close to the connecting part 72, and a sliding block 713 matched with the guide sliding groove 10 is arranged on the side surface of the connecting block 712 far away from the connecting part 72; the connecting portion 72 includes a connecting plate 721 fixedly connected to the upper die 9, and a clamping block 722 provided on the connecting plate 721 and engaged with the clamping groove 711. The upper surface of the connecting block 712 is provided with a plurality of screw holes 716, a pressing bolt 715 is embedded in the screw holes 716, and when the clamping block 722 is embedded in the clamping groove 711, the pressing bolt 715 is abutted against the clamping block 722. The second drive element 14 is rotatably connected to the connecting block 712. In this embodiment, the guide chute 10 cooperates with the guide assembly 7, specifically, the guide chute 10 cooperates with the slider 713 to realize the fixation of the sliding track of the upper mold 9, thereby preventing the occurrence of the dislocation. In this embodiment, the extending direction of the guide chute 10 is perpendicular to the upper surface of the stationary table 15. Here, the connection plate 721 is welded to the upper mold 9. In some embodiments, the connecting plate 721 and the upper mold 9 may be connected by bolts for easy detachment. The guide assembly 7 is arranged in a mode that the sliding part 71 is matched with the connecting part 72, so that part replacement is convenient to realize, and the equipment maintenance cost is reduced. In this embodiment, in order to facilitate the connection with the second driving element 14, a fork 714 is disposed on the lower surface of the connecting block 712, and the fork 714 is rotatably connected with the end of the second driving element 14 by a pin.

In this embodiment, a third driving member 3 for driving the turn table 5 is disposed between the turn table 5 and the base 1. The end of the turn-over table 5 is provided with a second rotary shaft 16 which is rotatably connected to the frame 8. An angle positioning block 17 is disposed at an end of the second rotating shaft 16 extending to the outside of the frame 8. The angle positioning block 17 is convenient for the staff to identify and control the rotation angle of the turnover worktable 5, thereby accurately grasping the bending degree of the plate and being convenient for improving the processing quality of the product.

As shown in fig. 5, the end of the second rotating shaft 16 inside the frame 8 is fixedly provided with the adjusting bracket 6. The adjusting bracket 6 is L-shaped in shape, a connecting bolt 19 for fixing the turnover worktable 5 is arranged at the vertical section of the adjusting bracket 6, and an adjusting bolt 18 for finely adjusting the turnover worktable 5 is arranged at the horizontal section of the adjusting bracket 6. In the present embodiment, the adjustment bolt 18 is screwed with the horizontal section, and the end of the adjustment bolt 18 abuts against the turn table 5. When the bending machine is used, a worker can rotate the adjusting bolt 18 to further finely adjust the longitudinal height of the turnover worktable 5, so that the machining precision of the bending machine is higher, and different bending effects of plates can be realized.

In this embodiment, the turnover table 5 includes a support portion 51 and a working portion 52, the working portion 52 is detachably connected to the support portion 51 by screws, and the support portion 51 is connected to the adjusting bracket 6 and the third driving member 3, respectively. Wherein the support part 51 is hinged with the third driver 3. Preferably, as shown in fig. 5, the support portion 51 has a plate shape, and the working portion 52 has an L-shaped cross section. In the present embodiment, the support portion 51 is connected to the adjustment bracket 6 by the connecting bolt 19, and the end of the adjustment bolt 18 abuts against the support portion 51.

Preferably, the first drive member 2, the second drive member 14 and the third drive member 3 are each one of a pneumatic cylinder and a hydraulic cylinder. In this embodiment, the first driving member 2, the second driving member 14, and the third driving member 3 are cylinders.

In order to improve the stability of the device, a reinforcing column 4 is arranged between the base 1 and the stationary table 15.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a bending machine, includes base (1), this base (1) upper surface symmetry is provided with two frames (8), in fixed work platform (15) have set firmly between two frames (8), be provided with in this fixed work platform (15) top with frame (8) sliding connection's last mould (9), in fixed work platform (15) front side be provided with frame (8) rotate upset workstation (5) of connecting, its characterized in that:

a first driving piece (2) for driving the upper die (9) is arranged between the upper die (9) and the base (1); still include rotate install in two frame (8) between first pivot (12), wherein:

the first driving part (2) and the upper die (9) are provided with a connecting rod assembly, the connecting rod assembly comprises a first connecting rod (11) and a second connecting rod (13) which are fixedly connected with the first rotating shaft (12) respectively, the first connecting rod (11) is rotatably connected with the first driving part (2), the free end of the second connecting rod (13) is rotatably connected with a second driving part (14), and the second driving part (14) is rotatably connected to the upper die (9).

2. Machine according to claim 1, characterized in that: the end part of the upper die (9) is connected with the adjacent machine frame (8) in a sliding way through a guide assembly (7); and a guide sliding groove (10) matched with the guide component (7) is arranged on the rack (8).

3. Machine according to claim 2, characterized in that: the guide assembly (7) comprises a sliding portion (71) and a connecting portion (72), wherein:

the sliding part (71) comprises a connecting block (712), a clamping groove (711) is arranged on the side surface, close to the connecting part (72), of the connecting block (712), and a sliding block (713) matched with the guide sliding groove (10) is arranged on the side surface, far away from the connecting part (72), of the connecting block (712); the connecting part (72) comprises a connecting plate (721) fixedly connected with the upper die (9) and a clamping block (722) arranged on the connecting plate (721) and matched with the clamping groove (711);

the upper surface of the connecting block (712) is provided with a plurality of screw holes (716), compression bolts (715) are embedded in the screw holes (716), and when the clamping block (722) is embedded in the clamping groove (711), the compression bolts (715) are abutted to the clamping block (722);

the second driving piece (14) is rotatably connected with the connecting block (712).

4. Machine according to claim 1, characterized in that: a third driving piece (3) for driving the overturning worktable (5) is arranged between the overturning worktable (5) and the base (1);

a second rotating shaft (16) rotatably connected with the rack (8) is arranged at the end part of the turnover worktable (5);

an angle positioning block (17) is arranged at the end part of the second rotating shaft (16) extending to the outer side of the rack (8).

5. Machine according to claim 4, characterized in that: an adjusting frame (6) is fixedly arranged at the end part of the second rotating shaft (16) positioned at the inner side of the rack (8);

the appearance of this alignment jig (6) is L form, in the vertical section configuration of this alignment jig (6) be used for fixing the connecting bolt (19) of upset workstation (5), in the horizontal segment configuration of this alignment jig (6) be used for the fine setting adjusting bolt (18) of upset workstation (5).

6. Machine according to claim 5, characterized in that: upset workstation (5) include supporting part (51) and work portion (52), work portion (52) with supporting part (51) can be dismantled and be connected, supporting part (51) respectively with alignment jig (6) with third driving piece (3) are connected.

7. Machine according to claim 6, characterized in that: the first drive member (2), the second drive member (14) and the third drive member (3) may each be one of a cylinder and a hydraulic cylinder.