CN112845704B

CN112845704B - Sheet metal part bending and forming equipment

Info

Publication number: CN112845704B
Application number: CN202110013776.7A
Authority: CN
Inventors: 张旭; 孙计萍; 杨津婧; 倪斌斌; 毛旭平
Original assignee: Huzhou University
Current assignee: Huzhou University
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2022-07-01
Anticipated expiration: 2041-01-06
Also published as: CN112845704A

Abstract

A sheet metal part bending and forming device comprises a base, a lifting device, an upper die, a lower die, an assembling device and a feeding device; the upper die comprises a pressing assembly and a bending assembly; the lower die comprises a positioning assembly and an adjusting assembly; the assembling device comprises a feeding component and a feeding component; the feeding device comprises a material storage component and a driving component; according to the invention, the pressing assembly moves downwards to drive the bending assembly and the positioning assembly to rotate so as to bend and maintain pressure of the iron sheet a, and meanwhile, the pressing assembly is matched with the feeding assembly and the driving assembly to realize part assembly and feeding and discharging work, so that the technical problem that the pressure of the bent sheet metal part cannot be maintained in the prior art is solved.

Description

Sheet metal part bending and forming equipment

Technical Field

The utility model provides an electric power iron tower annex production technical field specifically is a sheet metal component former that bends.

Background

The sheet metal is a comprehensive cold processing technology aiming at sheet metal (generally below 6 mm), comprising shearing, punching/cutting/compounding, folding, welding, riveting, splicing, forming (such as automobile bodies) and the like, and is characterized in that the thickness of the same part is consistent, a product processed by the sheet metal industry is called a sheet metal part, sheet metal parts used in different industries are generally different and are mainly used for assembly designation, and the sheet metal part is a product of the sheet metal technology, and parts with different purposes need to be welded on the sheet metal part according to different requirements of the market.

The invention patent with Chinese patent application number CN201910806756.8 discloses a quick bending and forming device for multi-angle sheet metal parts, which comprises an upper die and a lower die, wherein the upper die comprises two first templates hinged with each other, a first lifting mechanism comprises a first guide rail, a second guide rail and a motor, a first slide block is arranged on the first guide rail in a sliding manner, a second slide block is arranged on the second guide rail in a sliding manner, the end parts of the two first templates are respectively connected with the first slide block and the second slide block through transmission rod components, the first slide block and the second slide block both slide under the driving of the motor, the lower die comprises two second templates hinged with each other, and the second templates rotate under the driving of the second lifting mechanism. Compared with the prior art, the forming device can accurately adjust the bending angle of the die and quickly form bent sheet metal parts with various angles.

However, the equipment lacks the pressurize effect after bending the sheet metal component, and the sheet metal component after bending easily kick-backs, and then influences the effect of bending of sheet metal component.

Disclosure of Invention

In order to solve the problems, the invention provides sheet metal part bending forming equipment which drives a bending assembly and a positioning assembly to rotate to bend an iron sheet a through downward movement of a pressing assembly, then the pressing assembly moves downward continuously to enable the bending assembly and the positioning assembly to maintain pressure of the iron sheet a, meanwhile, a feeding assembly rotates under the action of a transmission assembly a to enable the iron sheet a and the iron sheet b to be in butt joint, then the iron sheet a and the iron sheet b are welded into a sheet metal part, and then the transmission assembly b acts to realize feeding of the iron sheet a and discharging of the sheet metal part in the upward movement process of the pressing assembly, so that the technical problem that the subsequent sheet metal part welding is inaccurate due to the fact that the pressure of the bent sheet metal part cannot be maintained in the prior art is solved.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a sheet metal component former that bends, includes the base and installs jacking equipment on the base still includes:

the upper die comprises a pressing assembly fixedly connected with the power end of the lifting device and a bending assembly which is arranged below the pressing assembly in a vertically sliding manner and can be abutted against the pressing assembly;

the lower die comprises a positioning assembly and an adjusting assembly, wherein the positioning assembly is installed on the base and forms a bending station with the bending assembly, and the adjusting assembly is arranged below the positioning assembly in a vertically sliding mode and can be abutted against the positioning assembly;

the assembling device comprises a feeding assembly arranged on one side of the bending station and a feeding assembly which is arranged between the feeding assembly and the bending station in a left-right swinging mode and is in power connection with the pressing assembly through a transmission assembly a; and

the feeding device comprises a material storage assembly arranged below the feeding assembly and a driving assembly arranged above the material storage assembly and in power connection with the pressing assembly through a transmission assembly b; the driving component and the feeding component move at intervals.

As an improvement, the pressing assembly comprises a fixed plate fixedly connected with the lifting device and two groups of pressing mechanisms arranged in front and at back along the width direction of the fixed plate; two sets of pressing means all includes along fixed plate length direction symmetry sets up and rotates the installation two ejector pins of fixed plate bottom and connect two the air spring of ejector pin.

As an improvement, the bending assembly comprises a bending mechanism correspondingly arranged below the pressing mechanism; the bending mechanism comprises two pressing plates which are elastically hinged through torsion springs and can be correspondingly abutted against the ejector rod, and the hinged ends of the two pressing plates are connected with the fixing plate in an elastic mode.

As an improvement, the positioning assembly comprises two brackets symmetrically fixed on the base and two bottom plates elastically hinged through torsion springs, the hinged ends of the two bottom plates are erected on the two brackets, and limiting rods are elastically and rotatably installed at the edges of two corners, far away from the hinged ends, of the two bottom plates.

As an improvement, the adjusting component comprises a limiting frame which is arranged between the two supports in a vertically sliding mode, three limiting holes which are formed in one side of the supports from top to bottom, and a pin which can penetrate through any limiting hole and is matched with the limiting frame in an inserting mode.

As an improvement, the feeding assembly comprises a mounting table mounted on the base, a storage box arranged at one end of the mounting table far away from the bending station, a push plate elastically mounted inside the storage box and capable of being arranged in a sliding manner along the length direction of the storage box, a baffle fixed on the mounting table and arranged right opposite to the push plate, and a material pushing plate arranged between the storage box and the baffle in a sliding manner; the material pushing plate is fixedly connected with a power shaft of the air cylinder.

As an improvement, the feeding assembly comprises a swing arm rotatably mounted on one side of the mounting table, a rotating shaft in power connection with the swing arm and the transmission assembly a, and a gripper fixed at the end of the swing arm and capable of being aligned with the material pushing plate.

As an improvement, the stock component comprises a striker plate fixedly mounted at the bottom of the mounting table, a storage box mounted on the base and right between the striker plates, and a support plate mounted in the storage box and slidably mounted up and down.

As an improvement, the driving assembly comprises a roller shaft which is rotatably arranged on one side of the mounting table close to the bending station, and the roller shaft is in power connection with the transmission assembly b.

As an improvement, the transmission component b comprises a gear which is in power connection with the roller shaft through a ratchet component and a rack which is fixedly arranged on the pressing component and can be meshed with the gear.

The invention has the beneficial effects that:

(1) according to the invention, after the iron sheet a is clamped by the bottom plate and the pressing plate, the pressing assembly pushes the bottom plate and the pressing plate to rotate simultaneously to bend the iron sheet a, the pressing assembly moves downwards continuously, the ejector rod rotates, the end part of the ejector rod moves along the surface of the pressing plate, the pressing effect is improved while the pressure of the bent iron sheet a is maintained, and the assembling precision of the iron sheet a and the iron sheet b is improved;

(2) according to the invention, the non-bent iron sheet a is in a horizontal state when being sent to the bottom plate, and is limited by the limiting rod, and then when the pressing plate and the bottom plate are rotated, aligned and bent, the iron sheet a can be effectively prevented from shifting in the bending process, so that the bending precision is further improved;

(3) in the invention, the pin penetrates through the limiting hole to be in inserted fit with the limiting frame, and the height of the limiting frame on the bracket can be changed by changing the pin in different limiting holes, so that the bending angle is changed, the multi-angle bending of the iron sheet a is realized, and the applicability of the equipment is improved;

(4) according to the invention, the pressing assembly continues to move downwards to maintain the pressure of the iron sheet a, and the transmission assembly a drives the swing arm to rotate the iron sheet b to the bending position of the iron sheet a, so that the iron sheet b and the iron sheet a are quickly spliced, and then the iron sheet b is fixed by the gripper when the iron sheet b and the iron sheet a are welded, so that the iron sheet b is quickly positioned, and the welding deformation is effectively reduced;

(5) according to the invention, the fixed plate moves upwards under the action of the transmission assembly b to drive the roll shaft to rotate, so that the non-bent iron sheet a is conveyed to the bottom plate, and meanwhile, a welded part which is bent and welded is pushed away, so that the feeding and discharging are automatically and rapidly carried out, and the production efficiency is improved.

In conclusion, the bending device has the advantages of simple structure, ingenious design, good bending effect, high production efficiency and the like, and is particularly suitable for producing sheet metal parts for stretching operation.

Drawings

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

FIG. 2 is a partial schematic view of the first embodiment of the present invention;

FIG. 3 is a partial schematic view of the present invention;

FIG. 4 is a schematic view of the feed assembly in operation;

FIG. 5 is a schematic view of the operation of the driving assembly;

fig. 6 is a schematic structural diagram of the transmission assembly b.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b):

as shown in fig. 1 to 3, a sheet metal part bending and forming device includes a base 1 and a lifting device 2 installed on the base 1, and further includes:

the upper die 3 comprises a pressing component 31 fixedly connected with the power end of the lifting device 2 and a bending component 32 which is arranged below the pressing component 31 in a vertically sliding mode and can be abutted against the pressing component 31;

the lower die 4 comprises a positioning component 41 which is arranged on the base 1 and forms a bending station 100 with the bending component 32, and an adjusting component 42 which is arranged below the positioning component 41 in a vertically sliding mode and can be abutted against the positioning component 41;

the assembling device 5 comprises a feeding assembly 51 arranged on one side of the bending station 100 and a feeding assembly 52 which is arranged between the feeding assembly 51 and the bending station 100 in a left-right swinging manner and is in power connection with the pressing assembly 31 through a transmission assembly a 50; and

the feeding device 6 comprises a stock component 61 arranged below the feeding component 51 and a driving component 62 arranged above the stock component 61 and in power connection with the pressing component 31 through a transmission component b 60; the drive assembly 62 is spaced from the feed assembly 52.

In the present invention, the bent iron piece a10 and the bent iron piece b20 are welded to form a sheet metal member for drawing work as shown in fig. 5.

It should be further noted that the lifting device 2 is the prior art, and the working process and the working principle thereof are not described herein in detail.

Further, the pressing assembly 31 includes a fixing plate 311 fixedly connected to the lifting device 2, and two sets of pressing mechanisms 312 disposed in front and behind along the width direction of the fixing plate 311; two sets of pressing mechanism 312 all includes along fixed plate 311 length direction symmetry sets up and rotate the installation two ejector pins 3111 and the connection two of fixed plate 311 bottom the gas spring 3112 of ejector pin 3111.

Further, the bending assembly 32 includes a bending mechanism 321 correspondingly disposed below the pressing mechanism 312; the bending mechanism 321 includes two pressing plates 3211 which are elastically hinged by a torsion spring and can be correspondingly abutted to the push rod 3111, and the hinged ends of the two pressing plates 3211 are connected to the fixing plate 311 in an elastic manner.

Furthermore, the positioning assembly 41 includes two brackets 411 symmetrically fixed on the base 1 and two bottom plates 412 elastically hinged by a torsion spring, the hinged ends of the two bottom plates 412 are erected on the two brackets 411, and two corner edges of the two bottom plates 412 far away from the hinged ends are elastically and rotatably provided with limit rods 413.

It should be noted that, as shown in fig. 2 and 5, the limiting rod 413 facilitates the rapid positioning of the iron sheet a10 on the bottom plate 412, and does not hinder the subsequent discharging process.

It should be further noted that, as shown in fig. 4, the initial positions of the pressing plate 3211 and the bottom plate 412 are both in a horizontal state, the iron sheet a10 is placed on the bottom plate 412, then the pressing assembly 31 moves downward, the pressing plate 3211 contacts the iron sheet a10, then the pressing assembly 31 continues to move downward, the hinge shaft of the pressing plate 3211 is elastically connected to the fixing plate 311, so the push rod 3111 continues to move downward to drive the pressing plate 3211 and the bottom plate 412 to rotate, and then the iron sheet a10 is bent.

It is important to note that the elastic coefficient of the gas spring 3112 is set such that the gas spring 3112 does not rotate the push rod 3111 during the rotation of the press plate 3211 and the bottom plate 412, and the end of the push rod 3111 moves along the surface of the press plate 3211 during the pressure maintaining process in which the pressing assembly 31 continues to move downward after the bending is completed, and thus the gas spring 3112 extends.

Still further, as shown in fig. 2, the adjusting component 42 includes a limiting frame 421 disposed between the two brackets 411 in a vertically sliding manner, three limiting holes 422 disposed on one side of the bracket 411 from top to bottom, and a pin 423 disposed in any one of the limiting holes 422 and engaged with the limiting frame 421 in an inserting manner.

It should be noted that, when the bottom plate 412 rotates to abut against the limiting frame 421, the bottom plate 412 and the pressing plate 3211 do not rotate any more, an angle formed by the two bottom plates 412 is a bending angle, and the position of the pin 423 in the different limiting holes 422 is changed to change the height of the limiting frame 421, so as to change the bending angle of the iron sheet a 10.

It should be mentioned that the notch at the matching position of the iron sheet b20 and the bent iron sheet a10 is realized by punching through a punch press, and the size of the notch of the iron sheet b20 matched with the bent angle of the iron sheet a10 needs to be changed correspondingly when the bent angle of the iron sheet a10 is changed.

As shown in fig. 3, as a preferred embodiment, the feeding assembly 51 includes a mounting table 511 mounted on the base 1, a storage box 512 disposed at an end of the mounting table 511 away from the bending station 100, a push plate 513 elastically mounted inside the storage box 512 and slidably disposed along a length direction of the storage box 512, a baffle 514 fixed on the mounting table 511 and disposed opposite to the push plate 513, and a push plate 515 slidably disposed between the storage box 512 and the baffle 514; the material pushing plate 515 is fixedly connected with a power shaft of the air cylinder 516.

Further, the feeding assembly 52 includes a swing arm 521 rotatably mounted on one side of the mounting table 511, a rotating shaft 522 for dynamically connecting the swing arm 521 and the driving assembly a50, and a hand grip 523 fixed at an end of the swing arm 521 and alignable with the material pushing plate 515.

It should be noted that, as shown in fig. 4, the transmission assembly a50 includes a gear a501 coaxially fixed with the rotating shaft 522 and a rack a502 fixedly mounted on the fixing plate 311 and capable of being engaged with the gear a501, after the bottom plate 412 rotates to abut against the limiting frame 421, a pressure maintaining process is performed when the fixing plate 311 moves down continuously, meanwhile, the gear a501 is engaged with the rack a502 to drive the swing arm 521 to rotate, the hand 523 carries the iron sheet b20 to move to the bent position of the iron sheet a10 and butt against the iron sheet a10, so as to achieve quick positioning of the iron sheet b20, and after the iron sheet b is released, the two are welded manually, which can effectively reduce welding deformation.

It should be further noted that, as shown in fig. 3, a plurality of iron sheets b20 are stored in the storage box 512, the push plate 513 pushes the iron sheets b20 to abut against the baffle 514, and the distance between the baffle 514 and the storage box 512 is the width of the iron sheet b20, so that the push plate 515 can only push one iron sheet b20 to be clamped into the hand grip 513 at a time.

As shown in fig. 4 and 5, as a preferred embodiment, the stock component 61 includes striker plates 611 fixedly installed at the bottom of the installation table 511, a storage box 612 installed on the base 1 and facing the striker plates 611, and a support plate 613 elastically installed in the storage box 612 and slidably installed in the storage box 612 up and down.

Further, the driving assembly 62 includes a roller 621 rotatably installed at one side of the mounting table 511 near the bending station 100, and the roller 621 is in power connection with the transmission assembly b 60.

Further, as shown in fig. 6, the transmission assembly b60 includes a gear 602 that is dynamically connected to the roller 621 via a ratchet assembly 601, and a rack 603 that is fixedly mounted on the pressing assembly 31 and is capable of meshing with the gear 602.

It should be noted that the rack 603 is fixedly connected to the fixing plate 311, and when the pressing component 31 moves downward, the roller 621 does not rotate; when the pressing member 31 moves up, the roller 621 rotates.

It should be noted that the iron sheet a10 is not bent and is stacked in the storage box 612, the supporting plate 613 pushes the iron sheets a10 to abut against the striker plate 611, and the distance between the striker plate 611 and the top of the storage box 612 is equal to the thickness of the iron sheet a 10.

It is important to note that, after the fixing plate 311 moves upwards, and the bottom plate 412 rotates to be horizontal, the transmission assembly b60 drives the roller 621 to rotate, and the roller 621 drives the uppermost iron sheet a10 to move onto the bottom plate 412, and at the same time, the welded parts are pushed out.

The working process is as follows:

the height of the limit frame 421 is adjusted by adjusting the pins 423 to insert into the corresponding limit holes 222 according to a required angle, the iron sheet a10 is placed on the bottom plate 412, then the pressing component 31 moves downwards, the pressing plate 3211 contacts with the iron sheet a10, then the pressing component 31 moves downwards continuously, the push rod 3111 moves downwards continuously due to the elastic connection between the hinged end of the pressing plate 3211 and the fixing plate 311, and then the pressing plate 3211 and the bottom plate 412 rotate, and then the iron sheet a10 is bent, knowing that the bottom plate 412 is abutted against the limit frame 421, then the pressing component 31 moves downwards continuously, the push rod 3111 rotates, and the end portion moves along the pressing plate 3211, and meanwhile the transmission component a50 drives the swing arm 521 to rotate, the hand 523 carries the iron sheet b20 to move to the bending position of the iron sheet a10 and is abutted against the iron sheet a10, and then, manually welding the iron sheet a10 and the iron sheet b20, after welding is completed, moving the fixing plate 311 upwards, driving the transmission assembly a50 to drive the swing arm 521 and the hand grip 523 to reset, and simultaneously driving the transmission assembly b60 to drive the roller shaft 621 to send the iron sheet a10 to be bent to the bottom plate 412 and push out the welded parts.

Claims

1. The utility model provides a sheet metal component former that bends, includes base (1) and installs jacking equipment (2) on base (1), its characterized in that still includes:

the upper die (3) comprises a pressing component (31) fixedly connected with the power end of the lifting device (2) and a bending component (32) which is arranged below the pressing component (31) in a vertically sliding mode and can be abutted against the pressing component (31);

the lower die (4) comprises a positioning component (41) which is arranged on the base (1) and forms a bending station (100) with the bending component (32), and an adjusting component (42) which is arranged below the positioning component (41) in a vertically sliding mode and can be abutted against the positioning component (41);

the assembling device (5) comprises a feeding assembly (51) arranged on one side of the bending station (100) and a feeding assembly (52) which is arranged between the feeding assembly (51) and the bending station (100) in a left-right swinging mode and is in power connection with the pressing assembly (31) through a transmission assembly a (50); and

the feeding device (6) comprises a material storage assembly (61) arranged below the feeding assembly (51) and a driving assembly (62) arranged above the material storage assembly (61) and in power connection with the pressing assembly (31) through a transmission assembly b (60); the driving component (62) moves with the feeding component (52) at intervals;

the pressing assembly (31) comprises a fixing plate (311) fixedly connected with the lifting device (2) and two groups of pressing mechanisms (312) which are arranged in front and at back along the width direction of the fixing plate (311); the two groups of pressing mechanisms (312) respectively comprise two ejector rods (3111) which are symmetrically arranged along the length direction of the fixing plate (311) and rotatably installed at the bottom of the fixing plate (311) and a gas spring (3112) connected with the two ejector rods (3111);

the bending assembly (32) comprises two groups of bending mechanisms (321) which are correspondingly arranged below the pressing mechanism (312); the bending mechanism (321) comprises two pressing plates (3211) which are elastically hinged through a torsion spring and can be correspondingly abutted against the ejector rod (3111), and the hinged ends of the two pressing plates (3211) are elastically connected to the fixing plate (311);

locating component (41) include that two symmetries are fixed support (411) on base (1) and two bottom plates (412) through torsional spring elasticity articulated, two the articulated end of bottom plate (412) erects two on support (411), and two elastic rotation in the both corners edge department that articulated end was kept away from in bottom plate (412) installs gag lever post (413).

2. The sheet metal part bending and forming equipment according to claim 1, wherein the adjusting assembly (42) comprises a limiting frame (421) which is arranged between the two supports (411) in a vertically sliding manner, three limiting holes (422) which are formed in one side of the supports (411) from top to bottom, and a pin (423) which can be arranged in any one of the limiting holes (422) in a penetrating manner and is matched with the limiting frame (421) in an inserting manner.

3. The sheet metal part bending forming device according to claim 1, wherein the feeding assembly (51) comprises a mounting table (511) mounted on the base (1), a storage box (512) arranged at one end of the mounting table (511) far away from the bending station (100), a push plate (513) elastically mounted inside the storage box (512) and capable of being arranged in a sliding mode along the length direction of the storage box (512), a baffle plate (514) fixed on the mounting table (511) and opposite to the push plate (513), and a material pushing plate (515) arranged between the storage box (512) and the baffle plate (514) in a sliding mode; the material pushing plate (515) is fixedly connected with a power shaft of the air cylinder (516).

4. The sheet metal part bending and forming equipment according to claim 3, wherein the feeding assembly (52) comprises a swing arm (521) rotatably mounted on one side of the mounting table (511), a rotating shaft (522) for dynamically connecting the swing arm (521) with the transmission assembly a (50), and a gripping hand (523) fixed at the end of the swing arm (521) and alignable with the material pushing plate (515).

5. The sheet metal part bending and forming equipment according to claim 3, wherein the stock component (61) comprises striker plates (611) fixedly mounted at the bottom of the mounting table (511), a storage box (612) mounted on the base (1) and opposite to the striker plates (611), and a support plate (613) elastically mounted in the storage box (612) and arranged in the storage box (612) in a vertically sliding manner.

6. The sheet metal part bending and forming apparatus according to claim 5, wherein said drive assembly (62) includes a roller (621) rotatably mounted on a side of said mounting table (511) adjacent to said bending station (100), said roller (621) being in powered communication with said drive assembly b (60).

7. The sheet metal part bending and forming equipment according to claim 6, wherein the transmission assembly b (60) comprises a gear (602) in power connection with the roller shaft (621) through a ratchet assembly (601) and a rack (603) fixedly mounted on the pressing assembly (31) and meshed with the gear (602).