CN112742907A - Welding channel steel correcting device for assembly type steel structure building - Google Patents
Welding channel steel correcting device for assembly type steel structure building Download PDFInfo
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- CN112742907A CN112742907A CN202011608956.1A CN202011608956A CN112742907A CN 112742907 A CN112742907 A CN 112742907A CN 202011608956 A CN202011608956 A CN 202011608956A CN 112742907 A CN112742907 A CN 112742907A
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- motor
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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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
This scheme belongs to assembled steel construction building field, concretely relates to welding groove steel correcting device for assembled steel construction building, includes: the device comprises a rack, a first top plate, a second top plate, a first supporting plate, a second supporting plate, a first motor, a second motor, a third motor, a correction box and an adjusting device; the adjusting device comprises: a screw and a threaded sleeve; first correction case all includes with the second correction case: the device comprises a correcting block, a hydraulic cylinder, a communicating pipe and a top block; the correcting block is fixedly connected with an output shaft of the first motor; the communicating pipe is communicated with the hydraulic cylinder; a second piston is arranged in the communicating pipe; a connecting rod is arranged on the second piston; the free end of the connecting rod is provided with a top block which is fixedly connected. This scheme not only utilizes to correct the case and corrects surplus waste material, makes the channel-section steel of deformation resume, and resources are saved utilizes moreover to correct the case fixed to the channel-section steel to and supplementary welding set carries out a plurality of weldings to surplus leftover bits, welds into complete channel-section steel, and changing waste into valuables reduces extravagantly.
Description
Technical Field
This scheme belongs to assembled steel construction building field, concretely relates to welding groove steel correcting device for assembled steel construction building.
Background
At present, steel members are widely applied to the field of fabricated steel structure buildings. The steel member is a steel structure combined member which is formed by connecting steel plates, angle steels, welded channel steels, I-shaped steels, welded or hot-rolled H-shaped steels through connecting pieces in a cold bending or welding manner and can bear and transfer loads, and the steel member mainly has the advantages of light dead weight, factory manufacturing, quickness in installation, short construction period, good earthquake resistance, quickness in investment recovery, less environmental pollution and the like. Compared with a reinforced concrete structure, the steel member has unique advantages of development in three aspects of height, size and light weight, so that the steel member has reasonable and wide application in the field of building engineering.
The channel steel is a long steel bar with a groove-shaped section, belongs to carbon structural steel for construction and machinery, and is a steel bar with a complex section, and the section of the channel steel is in a groove shape. Channel steel is mainly used for building structures, curtain wall engineering, mechanical equipment, vehicle manufacturing and the like, and in the building field, steel materials such as channel steel or steel plates and the like need to be welded into steel structural parts.
When the channel-section steel was placed, take place to warp easily, in present channel-section steel use, to the part that takes place to warp, adopt the mode of cutting off, perhaps use partial channel-section steel, remaining part cuts off and throws away, and remaining deformation channel-section steel or undeformed channel-section steel do not utilize, cause the waste.
Disclosure of Invention
This scheme provides an assembled steel construction welding groove steel correcting device for building for solve the unused problem of surplus waste material.
In order to achieve the above object, the present scheme provides a welding channel steel correcting device for assembly type steel structure building, includes: the device comprises a rack, a first top plate, a second top plate, a first supporting plate, a second supporting plate, a first motor, a second motor, a third motor, a correction box and an adjusting unit; the first top plate and the second top plate are fixedly connected with the rack; the first supporting plate is fixedly connected with the first top plate; the adjusting unit includes: a screw and a threaded sleeve; the second top plate is provided with a through hole; the third motor is fixedly arranged at the bottom of the second top plate; the screw penetrates through the through hole and is rotationally connected with a third motor; the screw sleeve is in threaded fit with the screw; the screw sleeve is contacted with the bottom of the second supporting plate; the correcting box comprises a first correcting box and a second correcting box; the first correction box and the second correction box respectively comprise a correction block, a hydraulic cylinder, a communicating pipe and a top block; the first motor is fixedly arranged at the top of the first correcting box; the correcting block is fixedly connected with an output shaft of the first motor; a first piston is arranged in the hydraulic cylinder; the first piston is arranged in an I shape and is higher than the hydraulic cylinder; the communicating pipe is communicated with the hydraulic cylinder; a second piston is arranged in the communicating pipe; a connecting rod is arranged on the second piston; the free end of the connecting rod is fixedly connected with the top block.
The principle of the scheme is as follows: on will treating to correct the channel-section steel and place the first piston in the pneumatic cylinder, start first motor, in correction piece downstream gets into the channel-section steel recess, extrusion channel-section steel downstream, and then promote first piston downstream, liquid is discharged to communicating pipe in the pneumatic cylinder, and then makes the intraductal liquid level of communicating rise, and then makes kicking block extrusion channel-section steel lateral wall, starts the third motor, and then the screw rod is rotatory to be driven the swivel nut and shifts out the screw rod, upwards promotes the second backup pad, makes to treat to weld the channel-section steel and aligns.
The scheme has the beneficial effects that: to the problem that traditional surplus waste material did not utilize, this scheme not only utilizes to correct the case and corrects surplus waste material, makes the channel-section steel of warping resume, and resources are saved utilizes moreover to correct the case fixed to the channel-section steel to and supplementary welding set carries out a plurality of weldings to surplus leftover bits, welds into complete channel-section steel, and changing waste into valuables reduces extravagantly.
Further, the distance between the first top plate and the top of the rack is greater than the sum of the distance between the second top plate and the bottom of the rack and the length of the screw sleeve, the third motor is started to drive the screw rod to rotate, and then the screw sleeve is driven to move, and then the second supporting plate is driven to move, so that the second supporting plate and the first supporting plate are horizontal, and the distance greater than the length of the screw sleeve can be horizontal to the first supporting plate when the second supporting plate moves downwards.
Furthermore, a guide rod fixedly connected with the second supporting plate is arranged on the second supporting plate; the guide rod is connected with the second top plate in a sliding mode through the through hole of the second top plate; the bottom of the second top plate is provided with a guide sleeve; the guide sleeve is sleeved on the guide rod, and the guide sleeve ensures that the heights of two ends are kept consistent when the second supporting plate moves up and down, so that the welding precision is ensured.
Further, a fixing rod is arranged on the first motor; the free end of the fixed rod is provided with a generator; the bottom of the generator is provided with an electromagnet which is electrically connected; a travel switch is arranged on the side wall of the generator; the connecting rod is provided with a sliding block in sliding connection; the side wall of the sliding block is provided with a spring which is fixedly connected; the free end of the spring is fixedly connected with the connecting rod; the top of the sliding block is provided with a fixedly connected magnet; the top of the magnet is provided with a contactor matched with the travel switch; the top block is provided with a through hole; be equipped with the arch on the slider, when the generator circular telegram, the electro-magnet circular telegram has magnetism, and under the effect of magnetic force, magnet removes to first channel-section steel direction, and then drives the slider and removes to first channel-section steel direction, because the protruding through-hole in the middle of the protruding of slider and kicking block, so the first channel-section steel of bellying striking of slider reaches the effect of correcting. When the slider moves to first channel-section steel direction, the contactor moves to first channel-section steel direction simultaneously, and when contactor and travel switch contacted, the generator outage, electro-magnet magnetism disappeared, and first channel-section steel was kept away from to the slider under the pulling force of spring, and when contactor and travel switch contactless, the circuit switched on once more, and the electro-magnet has magnetism, makes the slider remove once more, strikes first channel-section steel. Continuous intermittent impact is continuously and repeatedly carried out, so that the correction effect is better.
Further, the correction block front end is equipped with the arch, and both ends are convex, and the correction block front end is equipped with the arch, guarantees the inward extrusion of channel-section steel and warp, and the protruding correction block of comparison is slightly thin, gets into the channel-section steel that warp more easily, and convex assurance is better gets into channel-section steel groove part.
Furthermore, the connecting rod bend is provided with a bulge, so that the sliding block is prevented from moving out of the connecting rod, and the impact effect is guaranteed.
Further, the iron core material of electro-magnet is soft iron, guarantees to have magnetism when the generator circular telegram, and magnetism disappears when the generator outage, and then guarantees that the slider slides on the connecting rod, and then makes the reciprocal striking channel-section steel of slider, better correction effect that reaches.
Furthermore, sliding grooves are formed in the first supporting plate and the second supporting plate; the correction box is arranged in the sliding groove, on one hand, the correction box can directionally move on the first supporting plate or the second supporting plate to correct different deformation parts, and on the other hand, the correction box plays a role in fixing.
Furthermore, a groove is formed in the top of the first piston; baffles are arranged at two ends of the groove, and springs fixedly connected with the baffles are arranged on the baffles; spring free end and recess lateral wall fixed connection to the bellied deformation that makes progress or downwards in the channel-section steel bottom, at the correction in-process, the channel-section steel both sides apart from changing, and baffle and spring guarantee that the channel-section steel both sides apart from increasing the time, play the effect of support to the channel-section steel. Meanwhile, allowance is left for increasing the distance of the side wall of the channel steel.
Drawings
Fig. 1 is a schematic structural front view according to an embodiment of the present invention.
Figure 2 is a side view of an orthotic case according to an embodiment of the present invention.
FIG. 3 is a schematic view of the part A in the direction B according to the embodiment of the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: first top plate 101, second top plate 102, frame 2, first support plate 3, second support plate 4, first motor 501, second motor 502, third motor 503, first correction box 601, second correction box 602, first channel steel 701, second channel steel 702702, thread insert 8, screw 9, guide rod 10, guide sleeve 11, telescopic rod 12, correction block 13, hydraulic cylinder 14, first piston 1501, second piston 1502, communicating pipe 16, connecting rod 17, top block 18, fixing rod 19, electromagnet 20, magnet 21, slider 22, generator 23, travel switch 24, contactor 2525
The embodiment is basically as shown in the attached figure 1:
a first top plate 101 and a second top plate 102 are arranged on the rack 2, and the first top plate 101 and the second top plate 102 are arranged at different heights relative to the bottom of the rack 2; first roof 101 and second roof 102 are last to be equipped with fixed connection's first backup pad 3 and second backup pad 4 respectively, are equipped with the spout on first backup pad 3 and the second backup pad 4 for place first correction case 601 and second correction case 602 respectively, not only can make and correct the case and can remove, play fixed effect to correcting the case simultaneously. The second top plate 102 is provided with a plurality of through holes, the bottom of the second top plate is provided with a third motor 503, an output shaft of the third motor 503 is provided with a screw rod 9, the screw sleeve 8 is sleeved on the screw rod 9, the top of the screw sleeve 8 is in contact with the second supporting plate 4, the bottom of the second supporting plate 4 is provided with a guide rod 10 fixedly connected, the guide rod 10 penetrates through the second top plate 102 through the through holes, and the bottom of the second top plate 102 is provided with a guide sleeve 11 sleeved on the guide rod 10.
When the third motor 503 is started, the screw rod 9 is driven to rotate and further drive the swivel nut 8 to move upwards, so that the second supporting plate 4 is jacked to move upwards, and when the first channel steel 701 aligns with the second channel steel 702702, the third motor 503 is closed, so that the first channel steel 701 and the second channel steel 702702 are welded.
The top of the first straightening box 601 is provided with a first motor 501 fixedly connected, and the first motor 501 and the second motor 502 are linear motors. Be equipped with telescopic link 12 on the first motor 501 output shaft for reciprocate, telescopic link 12 free end is equipped with fixed connection's correction piece 13, and correction piece 13 bottom is equipped with the arch, and both ends are arc, and the purpose makes the convenient channel-section steel of correcting inwards sunken. The bottom is equipped with fixed connection's pneumatic cylinder 14 in first correction case 601, is equipped with sliding connection's first piston 1501 in the pneumatic cylinder 14, places the first channel-section steel 701 of treating the correction on first piston 1501, and first piston 1501 is the I shape setting, is equipped with the recess in the first piston 1501, and inside is equipped with the baffle, is equipped with fixed connection's spring on the baffle, spring free end and first piston 1501 lateral wall fixed connection. Be equipped with the spring that is used for assisting first piston 1501 to resume in the pneumatic cylinder 14, spring one end and piston fixed connection, spring free end and 14 bottoms fixed connection of pneumatic cylinder, 14 both ends of pneumatic cylinder are equipped with communicating pipe 16 that communicates with it respectively, be equipped with second piston 1502 in communicating pipe 16, be equipped with fixed connection's connecting rod 17 on the second piston 1502, connecting rod 17 free end is equipped with fixed connection's kicking block 18, when first piston 1501 moves down, pressure increases in the pneumatic cylinder 14, liquid is discharged to communicating pipe 16, drive second piston 1502 and move upwards, and then promote kicking block 18 and move inwards, and then tighten the channel-section steel. The bottom of the telescopic rod 12 is provided with a fixed connecting fixing rod 19, the fixed connecting fixing rod 19 is provided with a fixed connecting generator 23, and the generator 23 is provided with an electromagnet 20. The connecting rod 17 is provided with a sliding block 22 in sliding connection, the top of the sliding block 22 is provided with a magnet 21, and a bulge is arranged at the bent part of the connecting rod 17 to prevent the sliding block 22 from sliding out of the connecting rod 17. A through hole is arranged in the top block 18, a protrusion matched with the through hole is arranged on the sliding block 22, a spring is arranged on the side wall of the sliding block 22, and the free end of the spring is fixedly connected with the connecting rod 17. The generator 23 is provided with a travel switch 24 on the side wall, a relay is arranged in the travel switch 24, and a contactor 2525 matched with the travel switch 24 is arranged on the top of the magnet 21.
When first motor 501 starts, telescopic link 12 is downward, and then drives dead lever 19 and remove downwards, and when generator 23 circular telegram, the circular telegram of electro-magnet 20 has magnetism, and under the effect of magnetic force, magnet 20 removes to first channel-section steel 701 direction, and then drives the slider and remove to first channel-section steel 701 direction, because the protruding through-hole in the middle of slider 22 and kicking block 18, so slider 22's bulge striking first channel-section steel 701 reaches the effect of correcting. When the slider 22 moves in the direction of the first channel 701, the contact 2525 moves in the direction of the first channel 701 at the same time, and when the contact 2525 contacts the travel switch 24, the generator 23 is deenergized, the magnetism of the electromagnet 20 disappears, the slider 22 moves away from the first channel 701 under the tensile force of the spring, and when the contact 2525 does not contact the travel switch 24, the circuit is turned on again, and the electromagnet 20 has magnetism, and the slider 22 is moved again to strike the first channel. Continuous intermittent impact is continuously and repeatedly carried out, so that the correction effect is better.
The second channel 702702 is straightened in the same manner as the first channel 702.
During specific operation, on first piston 1501 is placed to the channel-section steel of treating the correction, first motor 501 starts, telescopic link 12 is the downstream, correction piece 13 gets into in the first channel-section steel 701 recess, correct and fix the channel-section steel bottom, and then promote in the pneumatic cylinder 14 liquid to discharge communicating pipe 16, because liquid pressure increases, drive kicking block 18 to the extrusion of first channel-section steel 701 lateral wall, when generator 23 circular telegram, 20 circular telegrams of electro-magnet have magnetism, under the effect of magnetic force, magnet 20 removes to first channel-section steel 701 direction, and then drive the slider and remove to first channel-section steel 701 direction, because the protruding of slider 22 and the through-hole in the middle of 18 kicking blocks, so 22's protruding part striking first channel-section steel 701 of slider, reach the effect of correcting. When the slider 22 moves in the direction of the first channel 701, the contact 2525 moves in the direction of the first channel 701 at the same time, and when the contact 2525 contacts the stroke switch 24, the generator 23 is deenergized, the electromagnet 20 loses its magnetism, the slider 22 is separated from the first channel 701 by the tensile force of the spring, and when the contact 2525 does not contact the stroke switch 24, the circuit is turned on again, and thus, the impact is performed a plurality of times in succession. First correct case 601 and second correct case 602 and place respectively in the spout of first backup pad 3 and second backup pad 4, start third motor 503, screw 9 is rotatory, drives the rotatory screw rod 9 that shifts out of swivel nut 8, makes second backup pad 4 upwards remove, makes first channel-section steel 701 align with second channel-section steel 702702.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. The utility model provides an assembled steel construction welding groove steel correcting device for building which characterized in that: the method comprises the following steps: the device comprises a rack (2), a first top plate (101), a second top plate (102), a first supporting plate (3), a second supporting plate (4), a first motor (501), a second motor (502), a third motor (503), a correction box and an adjusting unit; the first top plate (101) and the second top plate (102) are fixedly connected with the rack (2); the first supporting plate (3) is fixedly connected with the first top plate (101); the adjusting unit includes: a screw rod (9) and a threaded sleeve (8); a through hole is formed in the second top plate (102); the third motor (503) is fixedly arranged at the bottom of the second top plate (102); the screw (9) penetrates through the through hole and is rotationally connected with a third motor (503); the threaded sleeve (8) is in threaded fit with the screw rod (9); the screw sleeve (8) is contacted with the bottom of the second supporting plate (4); the straightening box comprises a first straightening box (601) and a second straightening box (602); the first straightening box (601) and the second straightening box (602) respectively comprise a straightening block (13), a hydraulic cylinder (14), a communicating pipe (16) and a top block (18); the first motor (501) is fixedly arranged at the top of the first correcting box (601); the correcting block (13) is fixedly connected with an output shaft of the first motor (501); a first piston (1501) is arranged in the hydraulic cylinder (14); the first piston (1501) is arranged in an I shape, and the height of the first piston is higher than that of the hydraulic cylinder (14); the communicating pipe (16) is communicated with the hydraulic cylinder (14); a second piston (1502) is arranged in the communicating pipe (16); a connecting rod (17) is arranged on the second piston (1502); the free end of the connecting rod (17) is fixedly connected with the top block (18).
2. The welding channel steel correcting device for assembly type steel structure building according to claim 1, wherein the distance of the first top plate (101) from the top of the frame (2) is greater than the sum of the distance of the second top plate (102) from the bottom of the frame (2) and the length of the screw sleeve (8).
3. The welding channel steel correcting device for the assembly type steel structure building according to claim 1, wherein the second supporting plate (4) is provided with a guide rod (10) fixedly connected; the guide rod (10) is connected with the second top plate (102) in a sliding mode through a through hole of the second top plate; the bottom of the second top plate (102) is provided with a guide sleeve (11); the guide sleeve (11) is sleeved on the guide rod (10).
4. The welding channel steel correcting device for the assembly type steel structure building of claim 1, wherein the first motor (501) is provided with a fixing rod (19); a generator (23) is arranged at the free end of the fixed rod (19); the bottom of the generator (23) is provided with an electromagnet (20) which is electrically connected; a travel switch (24) is arranged on the side wall of the generator (23); a sliding block (22) in sliding connection is arranged on the connecting rod (17); the side wall of the sliding block (22) is provided with a spring which is fixedly connected; the free end of the spring is fixedly connected with a connecting rod (17); the top of the sliding block (22) is provided with a magnet (21) which is fixedly connected; the top of the magnet (21) is provided with a contactor (25) matched with the travel switch (24); the top block (18) is provided with a through hole; the sliding block (22) is provided with a bulge.
5. The welding channel steel correcting device for the assembly type steel structure building according to claim 1, wherein the correcting block (13) is provided with a protrusion at the front end and has a circular arc shape at both ends.
6. The welding channel steel correcting device for assembly type steel structure building according to claim 4, wherein the connecting rod (17) is provided with a protrusion at a bent portion.
7. The welding channel steel correcting device for assembly type steel structure building according to claim 4, wherein the iron core material of the electromagnet (20) is soft iron.
8. The welding channel steel correcting device for the assembly type steel structure building according to claim 1, wherein sliding grooves are formed on the first supporting plate (3) and the second supporting plate (4); the correcting box is arranged in the sliding groove.
9. The welding channel steel correcting device for assembly type steel structure building of claim 1, wherein the first piston (1501) is provided with a groove on the top; baffles are arranged at two ends of the groove, and springs fixedly connected with the baffles are arranged on the baffles; the free end of the spring is fixedly connected with the side wall of the groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202011608956.1A CN112742907A (en) | 2020-12-30 | 2020-12-30 | Welding channel steel correcting device for assembly type steel structure building |
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CN202011608956.1A CN112742907A (en) | 2020-12-30 | 2020-12-30 | Welding channel steel correcting device for assembly type steel structure building |
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CN202011608956.1A Withdrawn CN112742907A (en) | 2020-12-30 | 2020-12-30 | Welding channel steel correcting device for assembly type steel structure building |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113714333A (en) * | 2021-09-06 | 2021-11-30 | 江苏美固钢结构科技有限公司 | Correcting device for steel restoration and correcting method thereof |
CN114850539A (en) * | 2022-05-06 | 2022-08-05 | 湖州龙瑞电子科技有限公司 | Automobile aluminum alloy seat framework part punching auxiliary processing device |
CN116078895A (en) * | 2023-04-12 | 2023-05-09 | 秦皇岛中秦渤海轮毂有限公司 | Chamfering forming device and forming method for wheel window |
-
2020
- 2020-12-30 CN CN202011608956.1A patent/CN112742907A/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113714333A (en) * | 2021-09-06 | 2021-11-30 | 江苏美固钢结构科技有限公司 | Correcting device for steel restoration and correcting method thereof |
CN114850539A (en) * | 2022-05-06 | 2022-08-05 | 湖州龙瑞电子科技有限公司 | Automobile aluminum alloy seat framework part punching auxiliary processing device |
CN116078895A (en) * | 2023-04-12 | 2023-05-09 | 秦皇岛中秦渤海轮毂有限公司 | Chamfering forming device and forming method for wheel window |
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Application publication date: 20210504 |