CN111530982A - Sheet metal part bending method based on lever principle - Google Patents
Sheet metal part bending method based on lever principle Download PDFInfo
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- CN111530982A CN111530982A CN202010396603.3A CN202010396603A CN111530982A CN 111530982 A CN111530982 A CN 111530982A CN 202010396603 A CN202010396603 A CN 202010396603A CN 111530982 A CN111530982 A CN 111530982A
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- bending
- plate
- sheet metal
- shaped frame
- lever principle
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- 238000005452 bending Methods 0.000 title claims abstract description 70
- 239000002184 metal Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/002—Positioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention belongs to the field of metal processing, and particularly relates to a sheet metal part bending method based on a lever principle, which comprises the following steps of: cleaning a plate, bending and adjusting, placing the plate, bending and forming, unloading and warehousing; the bending equipment used in the sheet metal part bending process comprises a base, a fixing part, a bending part and a driving part, wherein the fixing part, the bending part and the driving part are arranged at the upper end of the base; the driving piece comprises a hydraulic cylinder fixedly connected to the upper end of the base and a supporting plate fixed to the upper end of the hydraulic cylinder, a hydraulic transmission piece is connected to the upper end of the supporting plate in a sliding mode, and the hydraulic transmission piece is connected with the two sleeves in a rotating mode. The invention has the advantages that the labor-saving effect is achieved by arranging the I-shaped frame and utilizing the lever principle, and the requirement on the power of the hydraulic cylinder is reduced.
Description
Technical Field
The invention belongs to the field of metal processing, and particularly relates to a sheet metal part bending method based on a lever principle.
Background
Sheet metal is a comprehensive cold working process for sheet metal (generally below 6 mm), including shearing, punching/cutting/compounding, folding, welding, riveting, splicing, forming (such as automobile bodies), and the like.
In the prior art, when a sheet metal part is bent, the bending degree and the thickness of the sheet metal part are larger, and the required pressing force is larger, so that the power of a hydraulic cylinder is always greatly changed, the abrasion on internal elements is larger, and the internal elements are easily damaged after a long time; in addition, when a sheet metal part with larger thickness is processed, a hydraulic cylinder with larger power must be replaced, and the processing cost is increased.
To this end, we propose a sheet metal part bending method based on the lever principle to solve the above problems.
Disclosure of Invention
The invention aims to provide a lever principle-based sheet metal part bending method which has a labor-saving effect by changing the torque, aiming at the problems that the existing sheet metal part has high requirements on a hydraulic cylinder in the bending process, and the pressure of the hydraulic cylinder is continuously increased, so that the sheet metal part is seriously abraded and easily damaged.
In order to achieve the purpose, the invention adopts the following technical scheme: a sheet metal part bending method based on a lever principle comprises the following steps:
s1, cleaning the plate, washing dust, impurities and the like on the surface of the plate, and removing burrs on the surface;
s2, bending adjustment, namely adjusting the bending equipment according to the radian required to be bent;
s3, placing the plate into a bending device, and aligning the bent part to the bent part;
s4, bending and forming, starting bending equipment, and bending the plate;
s5, unloading and warehousing, taking the processed plate down, sealing and warehousing for storage;
the bending equipment used in the sheet metal part bending process comprises a base, a fixing part, a bending part and a driving part, wherein the fixing part, the bending part and the driving part are arranged at the upper end of the base;
the driving piece comprises a hydraulic cylinder fixedly connected to the upper end of the base and a supporting plate fixed to the upper end of the hydraulic cylinder, a hydraulic transmission piece is connected to the upper end of the supporting plate in a sliding mode, and the hydraulic transmission piece is rotatably connected with the two sleeves.
In the sheet metal part bending method based on the lever principle, the hydraulic transmission part comprises an upper plate and a lower plate, a spring and an elastic liquid storage bag are fixedly connected between the upper plate and the lower plate, a communicating pipe communicated with the elastic liquid storage bag is fixedly connected to the upper end of the upper plate, two ends of the communicating pipe are respectively in rotating connection with two sleeves, and inner grooves of the sleeves are communicated with the communicating pipe.
In the above-described sheet metal member bending method based on the lever principle, the lower plate is slidably connected to the upper surface of the support plate through a slide groove provided at the upper end of the support plate.
In the sheet metal part bending method based on the lever principle, the side wall of the I-shaped frame is provided with a slot matched with the adjusting roller, the rotating shaft of the adjusting roller is provided with threads, and the adjusting roller is fixed with the I-shaped frame through a nut.
Compared with the prior art, the sheet metal part bending method based on the lever principle has the advantages that:
the hydraulic bending device has the advantages that through the arrangement of the I-shaped frame, the lever principle is utilized, the labor-saving effect can be achieved, the requirement on the power of the hydraulic cylinder is reduced, meanwhile, through the arrangement of the hydraulic transmission part, when the pressure is increased, the transmission liquid in the elastic liquid storage bag enters the inner groove, the sleeve and the I-shaped frame are enabled to generate relative displacement, the length of the power arm is increased, the labor-saving effect is further achieved, and the hydraulic cylinder with smaller power can meet the higher bending requirement; meanwhile, because the sheet metal component is by crooked in-process, when along with crooked degree grow, required pressure grow, through the mode that increases the power arm, can reduce the requirement to the pneumatic cylinder consumption, reduce the loss to the pneumatic cylinder for the whole even running of pneumatic cylinder prolongs its life.
Drawings
FIG. 1 is a schematic structural diagram of a bending device in a sheet metal part bending method based on a lever principle, provided by the invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic structural diagram of a hydraulic transmission part in a bending device for a sheet metal part bending method based on a lever principle, provided by the invention;
FIG. 4 is a schematic diagram of a connection relationship between a sleeve and an I-shaped frame in a bending device of a sheet metal part bending method based on a lever principle, provided by the invention;
FIG. 5 is a schematic diagram of a bending state of a sheet metal part by a sheet metal part bending method based on a lever principle provided by the invention;
fig. 6 is a flow chart of a sheet metal part bending method based on the lever principle provided by the invention.
In the figure, 1 base, 2 fixed parts, 3 bent parts, 4 driving parts, 5 tooling frames, 6 supporting rollers, 7 adjusting rollers, 8 sleeves, 9 hydraulic cylinders, 10 supporting plates, 11 hydraulic transmission parts, 12 upper plates, 13 lower plates, 14 springs, 15 elastic liquid storage bags, 16 communicating pipes, 17 inner grooves, 18 sliding grooves, 19 grooves and 20 screw caps.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
As shown in fig. 1 to 6, a sheet metal member bending method based on the lever principle includes the following steps:
s1, cleaning the plate, washing dust, impurities and the like on the surface of the plate, and removing burrs on the surface;
s2, bending adjustment, namely adjusting the bending equipment according to the radian required to be bent;
s3, placing the plate into a bending device, and aligning the bent part to the bent part;
s4, bending and forming, starting bending equipment, and bending the plate;
s5, unloading and warehousing, taking the processed plate down, sealing and warehousing for storage;
the bending device used in the sheet metal part bending process comprises a base 1, a fixing part 2 arranged at the upper end of the base 1, a bending part 3 and a driving part 4, wherein the bending part 3 comprises an I-shaped frame 5 with one end rotatably connected with the base 1, a supporting roller 6 and an adjusting roller 7 which are fixed in the I-shaped frame 5, the supporting roller 6 is coaxially and fixedly connected with the rotating axis of the I-shaped frame 5, the adjusting roller 7 can be freely adjusted in the I-shaped frame 5, specifically, a slot 19 matched with the adjusting roller 7 is arranged on the side wall of the I-shaped frame 5, a thread is arranged on the rotating shaft of the adjusting roller 7, the adjusting roller 7 is fixed with the I-shaped frame 5 through a nut 20, when the bending angle of the sheet metal part needs to be adjusted, the adjusting roller 7 is moved along the slot 19, and, the position of the adjusting roller 7 and the position of the I-shaped frame 5 can be locked, and the lower end of the I-shaped frame 5 is connected with a sleeve 8 with one sealed end in a sliding way;
the driving piece 4 comprises a hydraulic cylinder 9 fixedly connected to the upper end of the base 1 and a supporting plate 10 fixed to the upper end of the hydraulic cylinder 9, a hydraulic transmission piece 11 is slidably connected to the upper end of the supporting plate 10, and the hydraulic transmission piece 11 is rotatably connected with the two sleeves 8.
Further, the hydraulic transmission member 11 includes an upper plate 12 and a lower plate 13, a spring 14 and an elastic reservoir 15 are fixedly connected between the upper plate 12 and the lower plate 13, a connection pipe 16 connected with the elastic reservoir 15 is fixedly connected to the upper end of the upper plate 12, two ends of the connection pipe 16 are respectively connected with two sleeves 8 in a rotating manner, an inner groove 17 of each sleeve 8 is connected with the connection pipe 16, a sealed space formed by the elastic reservoir 15, the connection pipe 16 and the inner groove 17 is filled with a driving liquid, the driving liquid can be transformer oil, the end of the i-shaped frame 5 is connected with the side wall of the inner groove 17 in a sliding and sealing manner, when the driving liquid in the inner groove 17 becomes more or less, the driving liquid acts on the i-shaped frame 5 to cause relative displacement between the sleeves 8 and the i-shaped frame 5, and it should be noted that the lower plate 13 is connected with the upper surface of the support plate 10.
When the bending device is used, firstly, the adjusting roller 7 is adjusted to a proper position according to the bending angle, the adjusting roller is locked and fixed on the I-shaped frame 5 through the nut 20, then, a plate sequentially passes through the gap between the fixing piece 2 and the supporting roller 6 and the gap between the supporting roller 6 and the adjusting roller 7, as shown in fig. 5, then, the hydraulic cylinder 9 is started, the lower plate 13 is driven to move upwards under the action of the hydraulic cylinder 9, the lower plate 13 acts on the upper plate 12 through the spring 14, the upper plate 12 acts on the free end of the I-shaped frame 5, the I-shaped frame 5 is turned upwards by taking the axis of the supporting roller 6 as the center, under the combined action of the fixing piece 2, the supporting roller 6 and the adjusting roller 7, a sheet metal part is bent upwards along with the hydraulic cylinder 9, as shown in fig. 5, after the bending is finished, the hydraulic cylinder.
It should be noted that, in the present apparatus, when the spring 14 is shortened, the elastic reservoir 15 is compressed by the upper plate 12 and the lower plate 13, so that the driving liquid in the elastic reservoir enters the inner tank 17, and pushes the sleeve 8 to move in the opposite direction, and during the rotation of the i-shaped frame 5, the distance between the resistance arm and the adjusting roller 1 is set as a, and the distance between the power arm and the adjusting roller 6 and the upper plate 12 is set as b, as shown in fig. 5, according to the lever principle, the pressing force a is the lifting force b, and the larger the bending degree of the sheet metal part is, the larger the pressing force is, so when the length of a is fixed, the length of b is more labor-saving, and in combination with the present scheme, when the hydraulic cylinder 9 is pushed upwards, the sleeve 8 slides outwards, the length of b is increased, so that the effect of saving labor, that is, the requirement for power consumption of the hydraulic cylinder 9 can be reduced, meanwhile, the hydraulic cylinder 9 can be kept outputting continuously and stably, abrasion is reduced, and the service life of the hydraulic cylinder 9 is prolonged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A sheet metal part bending method based on a lever principle is characterized by comprising the following steps:
s1, cleaning the plate, washing dust, impurities and the like on the surface of the plate, and removing burrs on the surface;
s2, bending adjustment, namely adjusting the bending equipment according to the radian required to be bent;
s3, placing the plate into a bending device, and aligning the bent part to the bent part;
s4, bending and forming, starting bending equipment, and bending the plate;
s5, unloading and warehousing, taking the processed plate down, sealing and warehousing for storage;
the bending equipment used in the sheet metal part bending process comprises a base (1), a fixing part (2) arranged at the upper end of the base (1), a bending part (3) and a driving part (4), wherein the bending part (3) comprises a I-shaped frame (5) with one end rotatably connected with the base (1), a supporting roll (6) and an adjusting roll (7) which are fixed in the I-shaped frame (5), the supporting roll (6) is coaxially and fixedly connected with the rotating axis of the I-shaped frame (5), the adjusting roll (7) can be freely adjusted in the I-shaped frame (5), and the lower end of the I-shaped frame (5) is slidably connected with a sleeve (8) with one sealed end;
the driving part (4) comprises a hydraulic cylinder (9) fixedly connected to the upper end of the base (1) and a supporting plate (10) fixed to the upper end of the hydraulic cylinder (9), the upper end of the supporting plate (10) is slidably connected with a hydraulic transmission part (11), and the hydraulic transmission part (11) is rotatably connected with the two sleeves (8).
2. The lever principle-based sheet metal part bending method according to claim 1, wherein the hydraulic transmission member (11) comprises an upper plate (12) and a lower plate (13), a spring (14) and an elastic reservoir (15) are fixedly connected between the upper plate (12) and the lower plate (13), a communication pipe (16) communicated with the elastic reservoir (15) is fixedly connected to the upper end of the upper plate (12), two ends of the communication pipe (16) are rotatably connected with two sleeves (8), respectively, and an internal groove (17) of each sleeve (8) is communicated with the communication pipe (16).
3. The lever principle based sheet metal part bending method according to claim 2, wherein the lower plate (13) is slidably connected with the upper surface of the support plate (10) through a slide groove (18) provided at the upper end of the support plate (10).
4. The method of bending sheet metal parts based on the lever principle according to claim 1, characterized in that the side walls of the i-shaped frame (5) are provided with slots (19) matching the adjusting rollers (7), the rotating shaft of the adjusting rollers (7) is provided with threads, and the adjusting rollers (7) are fixed with the i-shaped frame (5) through nuts (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010396603.3A CN111530982A (en) | 2020-05-12 | 2020-05-12 | Sheet metal part bending method based on lever principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010396603.3A CN111530982A (en) | 2020-05-12 | 2020-05-12 | Sheet metal part bending method based on lever principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111530982A true CN111530982A (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010396603.3A Withdrawn CN111530982A (en) | 2020-05-12 | 2020-05-12 | Sheet metal part bending method based on lever principle |
Country Status (1)
| Country | Link |
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| CN (1) | CN111530982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523008A (en) * | 2020-11-23 | 2022-05-24 | 安徽东方旭电气设备有限公司 | A crib crimper for copper bar |
-
2020
- 2020-05-12 CN CN202010396603.3A patent/CN111530982A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523008A (en) * | 2020-11-23 | 2022-05-24 | 安徽东方旭电气设备有限公司 | A crib crimper for copper bar |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200814 |
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| WW01 | Invention patent application withdrawn after publication |