CN115365419B

CN115365419B - Flattening and bending processing equipment for large metal frame of vehicle body

Info

Publication number: CN115365419B
Application number: CN202211306649.7A
Authority: CN
Inventors: 朱晓宇; 武岳; 管国荣
Original assignee: Changshu Zhonglong Auto Parts Co ltd
Current assignee: Changshu Zhonglong Auto Parts Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-03-24
Anticipated expiration: 2042-10-25
Also published as: CN115365419A

Abstract

The invention relates to the technical field of pipe fitting stamping, in particular to flattening and bending processing equipment for a large metal frame of a vehicle body, which is simple to operate, saves processing time and improves production efficiency; the bending device comprises a bottom plate, wherein two groups of vertical plates are arranged on the bottom plate, a clamp is arranged on the bottom plate, an upper pressing plate and a lower pressing plate are arranged on the vertical plates in a sliding manner, an upper pressing block is fixedly arranged on the upper pressing plate, a bending beam is arranged on the upper pressing block in a sliding manner, at least two groups of second hydraulic cylinders are also fixedly arranged on the upper pressing plate, and the output ends of the second hydraulic cylinders are fixedly connected with the bending beam; the lower pressing plate is fixedly provided with a lower pressing block, and the lower pressing block is rotatably provided with a movable beam.

Description

Flattening and bending processing equipment for large metal frame of vehicle body

Technical Field

The invention relates to the technical field of pipe fitting stamping, in particular to flattening and bending processing equipment for a large metal frame of a vehicle body.

Background

In the production process of the large metal frame of the automobile, a connecting pipe fitting is needed, and sometimes, bolts are needed for connection and fixation besides welding, and when the pipe fitting is used for connection and fixation, one end of the pipe fitting needs to be flattened, bent and drilled, so that the pipe fitting can be used, as shown in fig. 10;

the existing production process is characterized in that flattening and bending are separated, a punching machine and a bending machine are needed to be used for processing respectively, time consumption is long, and production efficiency is affected.

Disclosure of Invention

In order to solve the technical problems, the invention provides the flattening and bending processing equipment for the large metal frame of the vehicle body, which is simple to operate, saves the processing time and improves the production efficiency.

The flattening and bending processing equipment for the large metal frame of the vehicle body comprises a bottom plate, wherein two groups of vertical plates are arranged on the bottom plate, a clamp is arranged on the bottom plate, an upper pressing plate and a lower pressing plate are slidably arranged on the vertical plates, an upper pressing block is fixedly arranged on the upper pressing plate, a bending beam is slidably arranged on the upper pressing block, at least two groups of second hydraulic cylinders are fixedly arranged on the upper pressing plate, and the output ends of the second hydraulic cylinders are fixedly connected with the bending beam; the lower pressing plate is fixedly provided with a lower pressing block, and the lower pressing block is rotatably provided with a movable beam.

Preferably, two groups of bearing seats are fixedly mounted on the lower pressing block, a convex seat is fixedly arranged on the movable beam, two groups of connecting shafts are symmetrically arranged on the convex seat, and the two groups of connecting shafts are respectively rotatably mounted between the two groups of bearing seats.

Preferably, install two sets of actuating mechanism on the holding down plate, every actuating mechanism of group establishes the third pneumatic cylinder on the holding down plate including fixed cover linking epaxial second gear and fixed mounting, fixed mounting has the slide on the holding down plate, slidable mounting has the second rack on the slide, and the second gear is connected with the meshing of second rack, the output and the second rack fixed connection of third pneumatic cylinder.

Preferably, the upper pressing plate and the lower pressing plate are both fixedly provided with connecting plates, the bottom plate is vertically and fixedly provided with a bidirectional hydraulic cylinder, and two output ends of the bidirectional hydraulic cylinder are respectively fixedly connected with the two groups of connecting plates.

Preferably, the fixture comprises an upper die and two groups of lower dies, wherein a top plate is fixedly arranged on each vertical plate, a first hydraulic cylinder is vertically arranged on each top plate, the output end of each first hydraulic cylinder is fixedly connected with the upper die, the two groups of lower dies are all slidably arranged between the two groups of vertical plates and fixedly connected with the two groups of lower dies, and a plurality of groups of pipe grooves are correspondingly arranged on the upper die and the lower dies.

Preferably, the two groups of lower dies are fixedly provided with first racks, the two groups of vertical plates are rotatably provided with rotating shafts, the vertical plates are further fixedly provided with motors for driving the rotating shafts to rotate along the axes of the vertical plates, the rotating shafts are coaxially and fixedly sleeved with first gears, and the first gears are meshed and connected with the first racks.

Preferably, the vertical plate is fixedly provided with an air cylinder, the output end of the air cylinder is fixedly provided with an integrated plate, and a plurality of groups of push rods are respectively arranged on the integrated plate corresponding to a plurality of groups of pipe grooves on the upper die.

Preferably, fixed mounting has two sets of slide rails on the bottom plate, fixed mounting has the slider on the lower mould, the lower mould relies on slider slidable mounting on the slide rail.

Compared with the prior art, the invention has the beneficial effects that: clamping and fixing a plurality of workpieces by using a clamp, enabling one ends of the workpieces needing to be punched and bent to extend into a position between an upper pressing block and a lower pressing block, then controlling the upper pressing block and the lower pressing block to be relatively and synchronously close to each other, enabling the upper pressing block and a bending beam to be matched with the lower pressing block and a movable beam to flatten the pipe fitting, then controlling the upper pressing block and the lower pressing block to be relatively and synchronously away from a certain distance, then driving the movable beam to rotate for 90 degrees, emptying the position below the bending beam, then controlling the upper pressing block and the lower pressing block to be close to each other, enabling the upper pressing block and the lower pressing block to tightly press the flat part of the pipe fitting, and then controlling a plurality of groups of second hydraulic cylinders to extend to enable the bending beam to bend part of the flat pipe fitting, so that the pipe fitting forms a structure that the bending part of the workpiece is not punched in the figure 10; through the setting, compare in the processing equipment of two kinds of differences of traditional needs and process, easy operation saves process time and promotes production efficiency.

Drawings

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

FIG. 2 is a schematic view of the present invention without a base plate;

FIG. 3 is an enlarged schematic view of the structural connection of the upper platen and the lower platen;

FIG. 4 is an enlarged schematic view of the structural connection of the lower die with the upper die, etc.;

FIG. 5 is an enlarged schematic view of the connection of two sets of lower molds;

FIG. 6 is an enlarged view of the connection between the integrated board and the push rod;

FIG. 7 is an enlarged schematic view of the structural connection of the upper press block and the bending beam;

FIG. 8 is an enlarged schematic view of the structural connection of the lower pressing block and the movable beam;

FIG. 9 is an enlarged view of the structure of the part A in FIG. 8;

FIG. 10 is a schematic view of a structure of a workpiece;

in the drawings, the reference numbers: 1. a base plate; 2. a vertical plate; 3. a lower die; 4. a pipe groove; 5. a first hydraulic cylinder; 6. an upper die; 7. an upper pressure plate; 8. pressing the blocks; 9. bending the beam; 10. a lower pressing plate; 11. pressing the block; 12. a movable beam; 13. a slide rail; 14. a slider; 15. a first rack; 16. a rotating shaft; 17. a first gear; 18. a motor; 19. a cylinder; 20. an integrated board; 21. a push rod; 22. a second hydraulic cylinder; 23. a chute; 24. a slide bar; 25. a boss; 26. a connecting shaft; 27. a bearing seat; 28. a second gear; 29. a slide base; 30. a second rack; 31. a third hydraulic cylinder; 32. a connecting plate; 33. a bidirectional hydraulic cylinder; 34. and (5) a workpiece.

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.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.

As shown in fig. 1, 3, 7 and 8, the flattening and bending processing equipment for the large metal frame of the vehicle body comprises a bottom plate 1, wherein two groups of vertical plates 2 are vertically arranged on the bottom plate 1, a clamp for fixing a plurality of workpieces 34 is arranged on the bottom plate 1, an upper pressing plate 7 and a lower pressing plate 10 are relatively slidably arranged on the vertical plates 2, an upper pressing block 8 is fixedly arranged on the upper pressing plate 7, a bending beam 9 is slidably arranged on the upper pressing block 8, at least two groups of second hydraulic cylinders 22 are also fixedly arranged on the upper pressing plate 7, and output ends of the second hydraulic cylinders 22 are fixedly connected with the bending beam 9; a lower pressing block 11 is fixedly arranged on the lower pressing plate 10 corresponding to the upper pressing block 8, and a movable beam 12 is rotatably arranged on the lower pressing block 11 corresponding to the bending beam 9;

specifically, the movable beam 12 and the lower press block 11 are connected in a manner shown in fig. 9, two sets of bearing seats 27 are fixedly mounted on the lower press block 11, a convex seat 25 is fixedly disposed on the movable beam 12, two sets of connecting shafts 26 are symmetrically disposed on the convex seat 25, and the two sets of connecting shafts 26 are respectively rotatably mounted between the two sets of bearing seats 27; the clamp is positioned between the two groups of vertical plates 2; during stamping, the bottom ends of the upper pressing block 8 and the bending beam 9 are flush, the top ends of the lower pressing block 11 and the movable beam 12 are flush, the widths of the upper pressing block 8 and the lower pressing block 11 are the same, and the widths of the bending beam 9 and the movable beam 12 are the same;

further, in order to ensure the stability of the relative movement of the upper pressing block 8 and the bending beam 9, a sliding groove 23 is arranged on the bending beam 9, a sliding strip 24 is arranged on the upper pressing block 8, and the bending beam 9 is slidably mounted on the sliding strip 24 by virtue of the sliding groove 23;

in this embodiment, a plurality of workpieces 34 are clamped and fixed by using a fixture, and one ends of the workpieces, which need to be stamped and bent, are extended between an upper pressing block 8 and a lower pressing block 11, then an upper pressing plate 7 and a lower pressing plate 10 are controlled to approach each other relatively and synchronously, so that the upper pressing block 8 and a bending beam 9 cooperate with the lower pressing block 11 and a movable beam 12 to flatten a pipe fitting, then the upper pressing plate 7 and the lower pressing plate 10 are controlled to move away from each other relatively and synchronously for a certain distance, the movable beam 12 is driven to rotate for 90 degrees, the position below the bending beam 9 is vacated, the upper pressing plate 7 and the lower pressing plate 10 are controlled to approach each other, so that the upper pressing block 8 and the lower pressing block 11 press a flat part of the pipe fitting, and then a plurality of sets of second hydraulic cylinders 22 are controlled to extend, so that the bending beam 9 bends a part of the flat pipe fitting, and the pipe fitting forms a structure as shown in fig. 10 where no hole is formed at the bending part of the workpiece 34; through the setting, compare in the processing equipment of two kinds of differences of traditional needs and process, easy operation saves process time and promotes production efficiency.

Further, as shown in fig. 3, a guide rail is vertically arranged on the rear end face of the bottom plate 1, guide grooves are arranged on the upper pressing plate 7 and the lower pressing plate 10, the upper pressing plate 7 and the lower pressing plate 10 are slidably mounted on the guide rail by means of the guide grooves, connecting plates 32 are fixedly arranged on the upper pressing plate 7 and the lower pressing plate 10, a bidirectional hydraulic cylinder 33 is vertically and fixedly mounted on the bottom plate 1, and two output ends of the bidirectional hydraulic cylinder 33 are fixedly connected with the two groups of connecting plates 32 respectively;

through the arrangement, the two groups of output ends of the bidirectional hydraulic cylinder 33 are controlled to be synchronously stretched, so that the synchronous relative movement of the upper pressing plate 7 and the lower pressing plate 10 can be controlled; through the arrangement of the guide grooves and the guide rails, the accuracy of the relative movement route of the upper pressing plate 7 and the lower pressing plate 10 is ensured, and the relative dislocation of the upper pressing block 8 and the lower pressing block 11 is prevented.

The specific structure of the clamp is shown in fig. 1, fig. 2 and fig. 5, the clamp comprises an upper die 6 and two groups of lower dies 3, a top plate is fixedly arranged on the two groups of vertical plates 2, a first hydraulic cylinder 5 is vertically arranged on the top plate, the output end of the first hydraulic cylinder 5 is fixedly connected with the upper die 6, the two groups of lower dies 3 are both slidably arranged between the two groups of vertical plates 2, the two groups of lower dies 3 are fixedly connected, a plurality of groups of pipe grooves 4 are correspondingly arranged on the upper die 6 and the lower dies 3, and the upper die 6 is sequentially matched with the two groups of lower dies 3 for use;

furthermore, two groups of slide rails 13 are fixedly installed on the bottom plate 1, a slide block 14 is fixedly installed on the lower die 3, and the lower die 3 is slidably installed on the slide rails 13 by means of the slide block 14;

specifically, how to drive the two groups of lower dies 3 to reciprocate left and right is shown in fig. 1, 2 and 4, the bottom ends of the two groups of lower dies 3 are fixedly provided with a first rack 15, a rotating shaft 16 is rotatably arranged between the two groups of vertical plates 2, the vertical plates 2 are also fixedly provided with a motor 18 for driving the rotating shaft 16 to rotate along the axis of the vertical plates, the rotating shaft 16 is coaxially and fixedly sleeved with a first gear 17, and the first gear 17 is meshed with the first rack 15;

in the embodiment, the motor 18 is controlled to rotate forwards and backwards, the rotating shaft 16 and the first gear 17 are driven to rotate along the axis of the rotating shaft, the two groups of lower dies 3 are driven to reciprocate left and right under the meshing action of the first rack 15 and the first gear 17, a plurality of pipes are placed on one group of lower dies 3 and are moved to the position under the upper die 6 by controlling the motor 18, the first hydraulic cylinder 5 is controlled to extend, the upper die 6 is pressed on the plurality of pipes to fix the pipes, then the pipes are punched and bent, and the other group of lower dies 3 are loaded in the punching and bending process; after the pipe fitting is bent by punching, the control motor 18 drives the two groups of lower dies 3 to move, so that the lower dies 3 loaded with the bent pipe fitting move out of the lower part of the upper die 6, the lower dies 3 which are just loaded move to the position right below the upper die 6, punching and bending are carried out, and the processes are sequentially circulated, so that the pipe fitting is continuously punched and bent.

In order to align the pipe on the lower die 3, as shown in fig. 1, 4 and 6, a cylinder 19 is fixedly installed on the vertical plate 2 without the upper pressing plate 7 and the lower pressing plate 10, an output end of the cylinder 19 is fixedly installed with an integrated plate 20, a plurality of groups of push rods 21 are respectively arranged on the integrated plate 20 corresponding to a plurality of groups of pipe slots 4 on the upper die 6, and the plurality of groups of push rods 21 are respectively coaxial with a plurality of groups of pipe slots 4 on the lower die 3 which moves to be under the upper die 6; in this embodiment, before the upper mold 6 and the lower mold 3 are closed, the driving cylinder 19 is extended to insert the groups of push rods 21 into the groups of pipe grooves 4 after closing, and push the groups of pipes to be flush.

Specifically, how to drive the movable beam 12 to rotate, as shown in fig. 8 and 9, two sets of driving mechanisms are installed on the lower pressing plate 10, each set of driving mechanism includes a second gear 28 fixedly sleeved on the connecting shaft 26 and a third hydraulic cylinder 31 fixedly installed on the lower pressing plate 10, a sliding seat 29 is fixedly installed on the lower pressing plate 10, a second rack 30 is installed on the sliding seat 29 in a sliding manner, the second gear 28 is engaged with the second rack 30, and an output end of the third hydraulic cylinder 31 is fixedly connected with the second rack 30; in this embodiment, the second rack 30 is moved by controlling the extension and contraction of the third hydraulic cylinder 31, and the coupling shaft 26 is driven to rotate by the meshing relationship between the second rack 30 and the second gear 28, so as to control the rotation of the movable beam 12.

The invention relates to a flattening and bending processing device for a large metal frame of a vehicle body, which comprises the following steps in the working process:

firstly, a rotating shaft 16 and a first gear 17 are driven to rotate along the axis of the rotating shaft by controlling the positive and negative rotation of a motor 18, two groups of lower dies 3 are driven to reciprocate left and right under the meshing action of a first rack 15 and the first gear 17, a plurality of pipe fittings are placed on one group of lower dies 3 and are moved to the position right below an upper die 6 by controlling the motor 18, then a cylinder 19 is controlled to extend, a plurality of groups of push rods 21 are respectively inserted into a plurality of groups of pipe grooves 4 after die assembly, a plurality of groups of pipe fittings are pushed to be flush, and then a first hydraulic cylinder 5 is controlled to extend, so that the upper die 6 is tightly pressed on the plurality of pipe fittings to fix the pipe fittings;

then, controlling the upper pressing plate 7 and the lower pressing plate 10 to approach to each other relatively synchronously, enabling the upper pressing plate 8 and the bending beam 9 to be matched with the lower pressing plate 11 and the movable beam 12 to flatten the pipe fitting, then controlling the upper pressing plate 7 and the lower pressing plate 10 to be away from each other relatively synchronously for a certain distance, then controlling the third hydraulic cylinder 31 to stretch and drive the second rack 30 to move, utilizing the meshing relationship between the second rack 30 and the second gear 28 to drive the connecting shaft 26 to rotate to enable the movable beam 12 to rotate for 90 degrees, emptying the position below the bending beam 9, then controlling the upper pressing plate 7 and the lower pressing plate 10 to approach to each other, enabling the upper pressing plate 8 and the lower pressing plate 11 to press the flat part of the pipe fitting, and then controlling the multiple groups of second hydraulic cylinders 22 to extend to enable the bending beam 9 to bend part of the flat pipe fitting;

then, in the process of stamping and bending, feeding the other set of lower dies 3; after the pipe fittings are punched and bent, the control motor 18 drives the two groups of lower dies 3 to move, so that the lower dies 3 loaded with the bent pipe fittings move out of the lower part of the upper die 6, the lower dies 3 which are just loaded move to the position right below the upper die 6, and the process is repeated to realize the continuous punching and bending of the pipe fittings.

The flattening and bending processing equipment for the large metal frame of the vehicle body has the advantages that the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the flattening and bending processing equipment can be implemented as long as the beneficial effects of the flattening and bending processing equipment are achieved.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. The flattening and bending processing equipment for the large metal frame of the vehicle body is characterized by comprising a bottom plate (1), wherein two groups of vertical plates (2) are arranged on the bottom plate (1), a clamp is arranged on the bottom plate (1), an upper pressing plate (7) and a lower pressing plate (10) are slidably arranged on the vertical plates (2), an upper pressing block (8) is fixedly arranged on the upper pressing plate (7), a bending beam (9) is slidably arranged on the upper pressing block (8), at least two groups of second hydraulic cylinders (22) are also fixedly arranged on the upper pressing plate (7), and the output ends of the second hydraulic cylinders (22) are fixedly connected with the bending beam (9); a lower pressing block (11) is fixedly arranged on the lower pressing plate (10), and a movable beam (12) is rotatably arranged on the lower pressing block (11);

two groups of bearing seats (27) are fixedly installed on the lower pressing block (11), a convex seat (25) is fixedly arranged on the movable beam (12), two groups of connecting shafts (26) are symmetrically arranged on the convex seat (25), and the two groups of connecting shafts (26) are respectively and rotatably installed between the two groups of bearing seats (27);

install two sets of actuating mechanism on holding down plate (10), every actuating mechanism of group establishes second gear (28) and third pneumatic cylinder (31) of fixed mounting on holding down plate (10) on even axle (26) including fixed cover, fixed mounting has slide (29) on holding down plate (10), slidable mounting has second rack (30) on slide (29), and second gear (28) are connected with second rack (30) meshing, the output and second rack (30) fixed connection of third pneumatic cylinder (31).

2. The vehicle body large-scale metal frame flattening and bending processing equipment according to claim 1, characterized in that the upper pressing plate (7) and the lower pressing plate (10) are both fixedly provided with a connecting plate (32), the bottom plate (1) is vertically and fixedly provided with a bidirectional hydraulic cylinder (33), and two output ends of the bidirectional hydraulic cylinder (33) are respectively and fixedly connected with the two groups of connecting plates (32).

3. The flattening and bending processing equipment for the large-sized metal framework of the vehicle body as claimed in claim 1, wherein the fixture comprises an upper die (6) and two sets of lower dies (3), a top plate is fixedly arranged on the two sets of vertical plates (2), a first hydraulic cylinder (5) is vertically arranged on the top plate, the output end of the first hydraulic cylinder (5) is fixedly connected with the upper die (6), the two sets of lower dies (3) are slidably arranged between the two sets of vertical plates (2), the two sets of lower dies (3) are fixedly connected, and a plurality of sets of pipe grooves (4) are correspondingly arranged on the upper die (6) and the lower dies (3).

4. The flattening and bending processing device for the large-sized metal frame of the vehicle body according to claim 3, wherein a first rack (15) is fixedly installed on two groups of the lower dies (3), a rotating shaft (16) is rotatably installed between two groups of the vertical plates (2), a motor (18) for driving the rotating shaft (16) to rotate along the axis of the vertical plate (2) is further fixedly installed on the vertical plate (2), a first gear (17) is coaxially and fixedly sleeved on the rotating shaft (16), and the first gear (17) is meshed and connected with the first rack (15).

5. The vehicle body large metal frame flattening and bending processing equipment according to claim 3, characterized in that an air cylinder (19) is fixedly installed on the vertical plate (2), an integrated plate (20) is fixedly installed at the output end of the air cylinder (19), and a plurality of groups of push rods (21) are respectively arranged on the integrated plate (20) corresponding to the plurality of groups of pipe slots (4) on the upper die (6).

6. A vehicle body large-scale metal frame flattening and bending processing device according to claim 3, characterized in that two sets of slide rails (13) are fixedly installed on the bottom plate (1), a slide block (14) is fixedly installed on the lower die (3), and the lower die (3) is slidably installed on the slide rails (13) by means of the slide block (14).