CN112718950A

CN112718950A - Multipurpose bending machine

Info

Publication number: CN112718950A
Application number: CN202011448091.7A
Authority: CN
Inventors: 杨伟胜
Original assignee: Tianjin Youjuda Steel Structure Co ltd
Current assignee: Tianjin Youjuda Steel Structure Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-04-30
Anticipated expiration: 2040-12-09
Also published as: CN112718950B

Abstract

The invention discloses a multipurpose bending machine, which relates to the technical field of steel plate processing equipment and comprises a rack and a workbench, wherein an oil cylinder is fixedly arranged at the upper part of the rack, an upper die holder connected with the rack in a sliding manner is fixedly arranged at the end of a piston rod of the oil cylinder, and an upper die is fixedly arranged at the lower end of the upper die holder; a lower die is arranged on the workbench and comprises two split dies which are hinged with each other and are in a V shape; the rack is provided with two driving plates in a sliding manner, the lower ends of the driving plates are bent towards the direction close to the lower die and are rotatably connected with first rollers, and the first rollers are in rolling fit with the die parting; the driving plate is linked with the upper die base. The invention provides a multipurpose bending machine which can be used for bending a steel plate conventionally and also can be used for folding the steel plate, and is convenient to use and high in reliability.

Description

Multipurpose bending machine

Technical Field

The invention relates to the technical field of steel plate processing equipment, in particular to a multipurpose bending machine.

Background

The section steel is a strip steel with a certain cross-sectional shape and size, and is one of four large varieties (plate, tube, profile and wire) of steel. The section steel is divided into a simple section steel and a complex section steel (deformed steel) according to the section shape. The former refers to square steel, round steel, flat steel, angle steel, hexagonal steel and the like; the latter refers to i-steel, channel steel, steel rail, window frame steel, bent section steel, etc. The bending machine is a machine capable of bending a thin plate.

The utility model with the prior publication number of CN209901991U discloses a diagonal bending mechanism of a bending machine, which comprises a bending machine frame, wherein the bending machine frame is provided with a working platform, a lower die mechanism, an upper die mechanism, a bending stop dog, a transmission mechanism and a driving mechanism connected with the bending machine frame; work platform upper end is equipped with lower die mechanism, lower die mechanism top is located bender frame upper end inner wall and is equipped with corresponding upper die mechanism, and is equipped with two sets of dogs of bending that are parallel to each other on the lower die mechanism rear lies in the bender frame inside wall, and the lower die mechanism right-hand member passes through the hinge and articulates with movable platform, and the lower die mechanism right-hand member is located and is equipped with the angle scale on the work platform, and the movable platform left side is equipped with the locking board, and the spiro union has the bolt on the locking board, and the.

By adopting the technical scheme, the upper die and the lower die are meshed to bend the steel plate under the driving of the driving mechanism. However, in the production of some special-shaped steels, a structure of a steel plate needing to be folded may occur, and when the structure is processed, the steel plate needs to be bent on the existing bending machine, and then the bent part is extruded on a press machine to be overlapped, so that the structure needs to be completed by two steps by using two devices, which wastes time and labor, and has low production efficiency.

Disclosure of Invention

The invention aims to provide a multipurpose bending machine, which can be used for conventionally bending a steel plate and also folding the steel plate by utilizing a lower die formed by mutually rotatable split dies, does not need to replace equipment for switching the two processes, saves time and labor and effectively improves the production efficiency.

The technical purpose of the invention is realized by the following technical scheme:

a multipurpose bending machine comprises a rack and a workbench, wherein an oil cylinder is fixedly arranged at the upper part of the rack, an upper die holder connected with the rack in a sliding manner is fixedly arranged at the end of a piston rod of the oil cylinder, and an upper die is fixedly arranged at the lower end of the upper die holder; a lower die is arranged on the workbench and comprises two split dies which are hinged with each other and are V-shaped; the rack is provided with two driving plates in a sliding manner, the lower ends of the driving plates are bent towards the direction close to the lower die and are rotatably connected with first rollers, and the first rollers are in rolling fit with the die parting;

the driving plate is provided with a lock hole, two sides of the upper die base in the width direction are respectively provided with two lock tongues in a sliding manner, a first spring is fixedly connected between each lock tongue and the upper die base, and the root of each lock tongue is fixedly provided with an unlocking rod; the utility model discloses an unlocking part, including the upper die base, the upper die base is provided with the unlocking piece, the unlocking piece is the U-shaped structure, the inboard shaping of unlocking piece has trapezoidal lug, unlocking piece and unlocking lever butt.

By adopting the technical scheme, when the steel plate needs to be folded, an operator places the steel plate on the lower die, then starts the oil cylinder, the upper die base drives the upper die to move downwards under the driving of the oil cylinder, and the upper die is meshed with the lower die to bend the steel plate. In the process, the bolt passes through the lock hole, and the sliding curved surface of the bolt is positioned at the lower side of the bolt, so that the influence on the driving plate is avoided. When the upper die base drives the upper die to move upwards under the driving of the oil cylinder, the lock tongue enters the lock hole and is in a locking state, the driving plate drives the driving plate to move upwards along with the upward movement of the upper die base, and the lower end of the driving plate can extrude the inclined die to enable the two die to turn towards the middle to fold the bent steel plate between the two die. Accomplish above-mentioned process after, the pulling unblock spare, lug on the unblock spare can promote the spring bolt to retract to the die holder because of the effect on inclined plane in, the drive plate falls under the effect of gravity and loosens two branch moulds, and two branch moulds are separated under the action of gravity and are convenient for take out the work piece. If a conventional bending process is required, the unlocking member needs to be pulled out and kept in a pulled-out state. This kind of mode can carry out conventional bending to the steel sheet, also can fold the steel sheet, and the switching of above-mentioned two kinds of processes does not need change equipment, and labour saving and time saving effectively improves production efficiency.

The invention is further configured to: a V-shaped locking piece is arranged below the lower die, a guide rod in sliding fit with the workbench is fixedly arranged on the lower side of the locking piece, and a second roller is further rotatably arranged on the lower side of the locking piece; a sliding rod is arranged on the workbench in a sliding manner, the second roller is matched with the sliding rod in a rolling manner, one end of the sliding rod in the width direction of the workbench is formed into an inclined surface, and a third roller is arranged at the other end of the sliding rod in a rotating manner; a second spring is fixedly connected between the sliding rod and the workbench; the upper die base is fixedly provided with a pressing rod matched with the workbench in a sliding mode, the lower end of the pressing rod is formed into an inclined plane, and the third roller is matched with the pressing rod in a rolling mode.

Through adopting above-mentioned technical scheme, when the locking piece was closely laminated with the lower extreme of two branch moulds, will divide two unable free rotations of mould locking, effectively improve the stability of bed die at the in-process with last mould interlock mutually. When the mould locking device is used, the pressing rod is pressed down along with the upper mould base, the sliding rod moves towards the direction far away from the pressing rod under the action of the inclined surface at the lower end of the pressing rod, the inclined surface on the sliding rod is abutted against the second roller and pushes the locking piece to move upwards in the process, and the locking piece locks the two separated moulds. In this way, the two split dies can be locked when the upper die base moves downwards, and the two split dies can be unlocked when the upper die base moves upwards.

The invention is further configured to: a first stop block is fixedly arranged on the lower side of one end, provided with an inclined plane, of the sliding rod, an adjusting rod is arranged on the workbench in a sliding mode, one end of the adjusting rod extends into the workbench along the width direction of the workbench and is provided with a second stop block in a molding mode, and the second stop block is abutted to one side, close to the third roller, of the first stop block; the adjusting rod is connected with a rotary knob in a rotating mode, one end, extending out of the workbench, of the adjusting rod, and adjusting slopes are formed on the upper side and the lower side of the rotary knob of the workbench.

By adopting the technical scheme, when an operator rotates the knob to the upper adjusting slope, the adjusting rod is pulled to move towards the outside of the workbench, the second stop block pushes the first stop block to move together in the process, and the locking piece locks the two split molds. When the steel plate needs to be bent conventionally, the two split dies can be kept in a locked state by using the knob, and the stability of the lower die is improved.

The invention is further configured to: the fixed complex transfer line that slides with the upper die base that is provided with on the deblocking piece, one side of upper die base length direction articulates there is the driving piece of V-arrangement, fixedly connected with torsion spring between driving piece and the upper die base, the one end that the driving piece stretched into the upper die base slides with the one end of the far dissociation catch of transfer line and articulates, the one end that the driving piece stretches out the upper die base is provided with the handle.

Through adopting above-mentioned technical scheme, operating personnel rotates the handle in the use, the driving piece will rotate, with driving piece sliding hinged's transfer line will be pulled out, the drive plate is relieved to lock. This facilitates access by the operator to the lock of the drive plate for removal of the workpiece.

The invention is further configured to: the driving part is provided with a pin hole at one end extending out of the upper die base, and a bolt matched with the pin hole is arranged on the upper die base in a sliding mode.

Through adopting above-mentioned technical scheme, when the pulling the one end that the driving piece stretches out the upper die base during handle rotated the downside most, operating personnel can promote bolt locking driving piece to the in-process that makes the upper die base rebound can not make the drive plate shift up. This way the two operating states of the bending machine are more stable.

The invention is further configured to: and grooves are formed in the upper sides of the hinged parts of the two sub-dies.

By adopting the technical scheme, the grooves can reserve enough allowance for the folding parts of the steel plates, so that the two split dies can be smoothly combined.

The invention is further configured to: and a connecting piece is fixedly arranged between the two driving plates positioned on one side of the lower die in the length direction.

By adopting the technical scheme, the connecting piece can improve the strength of the two connected driving plates, ensures the compression force of the split die when the driving plates move upwards, and ensures the reliability of the bending machine.

In conclusion, the beneficial technical effects of the invention are as follows:

(1) the steel plate can be bent conventionally and also can be folded by using the lower die formed by the split dies which can rotate mutually, equipment does not need to be replaced when the two processes are switched, time and labor are saved, and the production efficiency is effectively improved;

(2) the locking piece is utilized to lock the two split molds, so that the stability of the lower mold in the process of meshing with the upper mold is effectively improved;

(3) through setting up at the handle, improve the convenience that operating personnel made using this bender.

Drawings

FIG. 1 is a schematic overall structure of one embodiment of the present invention;

FIG. 2 is a partial enlarged view of portion A of FIG. 1, showing primarily the structure of the knob;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1, showing primarily the structure of the locking element;

FIG. 4 is an enlarged view of a portion E of FIG. 3, showing primarily the structure of the locking element;

fig. 5 is a sectional view taken along line C-C of fig. 1, which mainly shows the structure of the latch bolt;

fig. 6 is a partial enlarged view of portion F of fig. 5, which mainly shows the structure of the locking bolt;

fig. 7 is a sectional view taken along line D-D of fig. 1, mainly showing the structure of the unlocking member

FIG. 8 is a rear partial view of one embodiment of the present invention, primarily embodying the structure of the drive member.

Reference numerals: 1. a frame; 2. a work table; 3. an oil cylinder; 4. an upper die holder; 5. an upper die; 6. a lower die; 61. Splitting a mold; 7. a groove; 8. a drive plate; 9. a first roller; 10. a latch bolt; 11. a first spring; 12. an unlocking lever; 13. Unlocking the lock; 14. a transmission rod; 15. a drive member; 16. a torsion spring; 17. a handle; 18. a pin hole; 19. a bolt; 20. A locking member; 21. a guide bar; 22. a second roller; 23. a slide bar; 24. a third roller; 25. a first stopper; 26. adjusting a rod; 27. a second stopper; 28. a knob; 29. slope adjustment; 30. a connecting member; 31. a pressure lever; 32. a second spring; 33. And (4) a bump.

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying examples.

Referring to the attached

drawings

1, 3 and 4, the multipurpose bending machine comprises a rack 1 and a workbench 2, wherein an oil cylinder 3 is fixedly arranged at the upper part of the rack 1, an upper die holder 4 connected with the rack 1 in a sliding manner is fixedly arranged at the piston rod end of the oil cylinder 3, and an upper die 5 is fixedly arranged at the lower end of the upper die holder 4. Be provided with bed die 6 on workstation 2, bed die 6 includes that two are articulated each other and are the branch mould 61 of V-arrangement, and two divide mould 61 can be to middle upset, and the steel sheet of buckling wherein is folded. The upper sides of the hinged parts of the two sub-dies 61 are respectively provided with a groove 7, and the grooves 7 can reserve enough allowance for the folded part of the steel plate, so that the two sub-dies 61 can be smoothly combined. Two driving plates 8 are arranged on two sides of the frame 1 in the width direction in a sliding mode, the lower ends of the driving plates 8 are bent towards the direction close to the lower die 6 and are rotatably connected with first idler wheels 9, and the first idler wheels 9 are matched with the sub-dies 61 in a rolling mode. A connecting piece 30 is fixedly arranged between the two driving plates 8 at one side of the lower die 6 in the length direction. When the driving plate 8 moves vertically upwards, the driving plate 8 forces the two sub-dies 61 to turn inwards because the distance between the driving plates 8 on the two sides of the width direction of the frame 1 cannot change.

Referring to fig. 5 and 6, lock holes are formed in the drive plate 8, two lock tongues 10 are slidably arranged on two sides of the upper die base 4 in the width direction, a sliding curved surface of each lock tongue 10 is located on the lower side, a first spring 11 is fixedly connected between each lock tongue 10 and the upper die base 4, and an unlocking rod 12 is fixedly arranged at the root of each lock tongue 10; an unlocking piece 13 is arranged in the upper die base 4 in a sliding mode, the unlocking piece 13 is of a U-shaped structure, four trapezoidal convex blocks 33 are formed on the inner side of the unlocking piece 13, and two sides of the unlocking piece 13 abut against unlocking rods 12 on the lock tongues 10 arranged on two sides of the upper die base 4 in the width direction respectively. When the unlocking piece 13 moves along the direction perpendicular to the length direction of the bolt 10 on the horizontal plane, the protrusion 33 on the unlocking piece 13 will press the rod of the unlocking rod 12 and force the guide rod 21 to drive the bolt 10 to exit the lock hole, so as to achieve the purpose of unlocking. In such a way, the upper die base 4 does not have any influence on the driving plate 8 when moving downwards, but when the upper die base 4 moves upwards, the driving plate 8 is driven to move upwards together, and finally the locking between the driving plate 8 and the upper die base 4 is released through the unlocking piece 13, so that the driving plate 8 falls down.

Referring to fig. 8, a transmission rod 14 in sliding fit with the upper die base 4 is fixedly arranged on the unlocking piece 13, a V-shaped driving piece 15 is hinged to one side of the upper die base 4 in the length direction, a torsion spring 16 is fixedly connected between the driving piece 15 and the upper die base 4, one end of the driving piece 15 extending into the upper die base 4 is slidably hinged to one end of the transmission rod 14 far from the unlocking key, and a handle 17 is arranged at one end of the driving piece 15 extending out of the upper die base 4. A pin hole 18 is formed at one end of the driving piece 15 extending out of the upper die base 4, and a bolt 19 which is embedded and matched with the pin hole 18 is arranged on the upper die base 4 in a sliding mode. During use, when the operator rotates the handle 17, the driving member 15 will rotate, the transmission rod 14 slidably hinged with the driving member 15 will be pulled out, and the driving plate 8 is unlocked. This is convenient for the operator to operate.

Referring to fig. 3 and 4, a V-shaped locking member 20 is disposed below the lower mold 6, a guide rod 21 slidably engaged with the table 2 is fixedly disposed on the lower side of the locking member 20, and a second roller 22 is rotatably disposed on the lower side of the locking member 20. The locking piece 20 moves upwards and can be tightly attached to the lower ends of the two split dies 61, so that the two split dies 61 are locked and cannot rotate freely, and the stability of the lower die 6 in the process of meshing with the upper die 5 is effectively improved. A sliding rod 23 is arranged on the workbench 2 in a sliding manner, the second roller 22 is matched with the sliding rod 23 in a rolling manner, an inclined plane is formed at one end of the sliding rod 23 along the width direction of the workbench 2, and a third roller 24 is arranged at the other end of the sliding rod 23 in a rotating manner; a second spring 32 is fixedly connected between the sliding rod 23 and the workbench 2; a pressure lever 31 which is matched with the workbench 2 in a sliding way is fixedly arranged on the upper die holder 4, an inclined plane is formed at the lower end of the pressure lever 31, and the third roller 24 is matched with the pressure lever 31 in a rolling way. When the pressing rod 31 moves downwards along with the upper die base 4, the locking piece 20 moves upwards through the transmission of the sliding rod 23.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a first stopper 25 is fixedly arranged at the lower side of one end of the sliding rod 23, which is formed with an inclined plane, an adjusting rod 26 is slidably arranged on the workbench 2, one end of the adjusting rod 26 extends into the workbench 2 along the width direction of the workbench 2 and is formed with a second stopper 27, and the second stopper 27 is abutted against one side of the first stopper 25, which is close to the third roller 24; the end of the adjusting rod 26 extending out of the working platform 2 is rotatably connected with a knob 28, and adjusting slopes 29 are formed on the upper and lower sides of the knob 28 of the working platform 2. When the operator rotates the knob 28 up the adjustment slope 29, the locking member 20 can be kept locked to the split mold 61.

The working principle of the embodiment is as follows: when the steel plate needs to be folded, an operator places the steel plate on the lower die 6, then starts the oil cylinder 3, the upper die base 4 drives the upper die 5 to move downwards under the driving of the oil cylinder 3, and the upper die 5 is meshed with the lower die 6 to bend the steel plate. When the upper die base 4 drives the upper die 5 to move upwards under the driving of the oil cylinder 3, the lower end of the driving plate 8 can produce extrusion effect on the inclined split dies 61, so that the two split dies 61 are turned towards the middle to fold the bent steel plate between the split dies 61. After the process is finished, the handle 17 is pulled to unlock the driving plate 8, the driving plate 8 falls under the action of gravity to release the two sub dies 61, and the two sub dies 61 are driven by the second torsion spring 16 to be separated so as to be convenient for taking out the workpiece. If a conventional bending process is required, the unlocking member 13 is pulled out by rotating the handle 17 and the unlocking member 13 is kept in the pulled-out state. The bender in this embodiment can carry out conventional bending to the steel sheet, also can fold the steel sheet, and the switching of above-mentioned two kinds of processes need not change equipment, and labour saving and time saving effectively improves production efficiency.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a multi-purpose bender, includes frame (1) and workstation (2), its characterized in that: an oil cylinder (3) is fixedly arranged at the upper part of the rack (1), an upper die holder (4) connected with the rack (1) in a sliding manner is fixedly arranged at a piston rod end of the oil cylinder (3), and an upper die (5) is fixedly arranged at the lower end of the upper die holder (4); a lower die (6) is arranged on the workbench (2), and the lower die (6) comprises two split dies (61) which are hinged with each other and are V-shaped; the machine frame (1) is provided with two driving plates (8) in a sliding mode, the lower ends of the driving plates (8) are bent towards the direction close to the lower die (6) and are connected with first rollers (9) in a rotating mode, and the first rollers (9) are matched with the split dies (61) in a rolling mode;

a lock hole is formed in the driving plate (8), two lock tongues (10) are arranged on two sides of the upper die holder (4) in the width direction in a sliding mode respectively, a first spring (11) is fixedly connected between each lock tongue (10) and the upper die holder (4), and an unlocking rod (12) is fixedly arranged at the root of each lock tongue (10); the utility model discloses a locking device, including upper die base (4), unlocking piece (13) are U-shaped structure, unlocking piece (13) inboard shaping has trapezoidal lug (33), unlocking piece (13) and unlocking lever (12) butt.

2. A machine according to claim 1, characterized in that: a V-shaped locking piece (20) is arranged below the lower die (6), a guide rod (21) in sliding fit with the workbench (2) is fixedly arranged on the lower side of the locking piece (20), and a second roller (22) is further rotatably arranged on the lower side of the locking piece (20); a sliding rod (23) is arranged on the workbench (2) in a sliding manner, the second roller (22) is matched with the sliding rod (23) in a rolling manner, one end of the sliding rod (23) in the width direction of the workbench (2) is formed into an inclined plane, and a third roller (24) is arranged at the other end of the sliding rod (23) in a rotating manner; a second spring (32) is fixedly connected between the sliding rod (23) and the workbench (2); the upper die holder (4) is fixedly provided with a pressing rod (31) which is matched with the workbench (2) in a sliding mode, the lower end of the pressing rod (31) is formed into an inclined plane, and the third roller (24) is matched with the pressing rod (31) in a rolling mode.

3. A machine according to claim 2, characterized in that: a first stop block (25) is fixedly arranged on the lower side of one end, provided with an inclined plane, of the sliding rod (23), an adjusting rod (26) is arranged on the workbench (2) in a sliding mode, one end of the adjusting rod (26) extends into the workbench (2) along the width direction of the workbench (2) and is provided with a second stop block (27) in a molding mode, and the second stop block (27) is abutted to one side, close to the third roller (24), of the first stop block (25); the one end that adjusts pole (26) and stretch out workstation (2) rotates and is connected with knob (28), workstation (2) are in the upper and lower both sides shaping of knob (28) have regulation slope (29).

4. A machine according to claim 1, characterized in that: the fixed complex transfer line (14) that slides with upper die base (4) that is provided with on unblock piece (13), one side of upper die base (4) length direction articulates there is driving piece (15) of V-arrangement, fixedly connected with torsion spring (16) between driving piece (15) and upper die base (4), one end that driving piece (15) stretched into upper die base (4) slides with the one end of transfer line (14) far dissociation catch and articulates, the one end that driving piece (15) stretched out upper die base (4) is provided with handle (17).

5. A machine according to claim 4, characterized in that: the driving piece (15) stretches out one end shaping of upper die base (4) and has pinhole (18), upper die base (4) slide on be provided with pinhole (18) inlay and establish complex bolt (19).

6. A machine according to claim 1, characterized in that: grooves (7) are formed in the upper sides of the hinged positions of the two sub-dies (61).

7. A machine according to claim 1, characterized in that: and a connecting piece (30) is fixedly arranged between the two driving plates (8) positioned on one side of the lower die (6) in the length direction.