CN111346961A - Turret type hydraulic punching machine - Google Patents
Turret type hydraulic punching machine Download PDFInfo
- Publication number
- CN111346961A CN111346961A CN202010148107.6A CN202010148107A CN111346961A CN 111346961 A CN111346961 A CN 111346961A CN 202010148107 A CN202010148107 A CN 202010148107A CN 111346961 A CN111346961 A CN 111346961A
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- CN
- China
- Prior art keywords
- punching
- turntable
- side wall
- mounting seat
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/08—Stamping using rigid devices or tools with die parts on rotating carriers
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/06—Stamping using rigid devices or tools having relatively-movable die 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/04—Movable or exchangeable mountings for tools
- B21D37/06—Pivotally-arranged tools, e.g. disengageable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to the technical field of hydraulic punching machines, in particular to a turret type hydraulic punching machine, which comprises a base, a turret type punching machine mechanism, a first adjusting mechanism, a connecting mechanism, an elastic mechanism and a second adjusting mechanism, the turret type punching mechanism is fixedly arranged at the upper end of the base and comprises a mounting seat, a punching turntable, a connecting column, a punching head, a station turntable, a station, a hydraulic cylinder and a hydraulic rod, the mounting seat is fixedly arranged on the upper side wall of the base, the stamping turntable is rotatably connected on the upper side wall of the mounting seat through a connecting column, a plurality of stamping heads vertically penetrate through the stamping turntable in a surrounding manner and are in sliding connection with the stamping turntable, the station turntable is rotatably connected to the inner wall of the lower side of the mounting seat, the hydraulic cylinder is fixedly mounted on the side wall of the upper side of the mounting seat, and one end of a hydraulic rod of the hydraulic cylinder is fixedly mounted at the output end of the hydraulic cylinder. The turret type hydraulic punch press provided by the invention has the advantages of convenience in operation and wide application range.
Description
Technical Field
The invention relates to the technical field of hydraulic punching machines, in particular to a turret type hydraulic punching machine.
Background
The hydraulic punching machine is a first full-automatic and intelligent servo electro-hydraulic composite pressing machine in the punching equipment industry, adopts a self-researched double-dead-cycle servo system control mode, and is high in humanization degree, full-automatic, intelligent and powerful in function.
Most of the existing hydraulic punching machines can only process one workpiece, when workpieces with different sizes and shapes need to be punched, punching heads and stations need to be modified, and the operation is troublesome. Therefore, there is a need to provide a new turret type hydraulic press to solve the above-mentioned technical problems.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a turret type hydraulic punch press.
The technical scheme adopted by the invention for solving the technical problems is as follows: a turret type hydraulic punch press, which comprises a base, a turret type punch press mechanism, a first adjusting mechanism, a connecting mechanism, an elastic mechanism and a second adjusting mechanism, the turret type punching mechanism is fixedly arranged at the upper end of the base and comprises a mounting seat, a punching turntable, a connecting column, a punching head, a station turntable, a station, a hydraulic cylinder and a hydraulic rod, the mounting seat is fixedly arranged on the upper side wall of the base, the stamping turntable is rotatably connected on the upper side wall of the mounting seat through a connecting column, a plurality of stamping heads vertically penetrate through the stamping turntable in a surrounding manner and are in sliding connection with the stamping turntable, the station turntable is rotationally connected to the inner wall of the lower side of the mounting seat, the hydraulic cylinder is fixedly arranged on the side wall of the upper side of the mounting seat, one end of a hydraulic rod is fixedly arranged at the output end of the hydraulic cylinder, and one end of the hydraulic rod, which is far away from the hydraulic cylinder, penetrates through the side wall of the upper side of the mounting seat and is fixedly connected with one of the stamping heads; the first adjusting mechanism is arranged on the side wall of the upper side of the mounting seat; the connecting mechanism is rotatably connected to the upper end of the stamping head; the elastic mechanism is arranged in the stamping turntable; the second adjusting mechanism is arranged on the inner wall of the lower side of the mounting seat.
Preferably, first adjustment mechanism includes rotary trough, commentaries on classics piece, spacing slot, spacing inserted block, limiting plate and spacing groove, the rotary trough is vertical to be seted up on the upside lateral wall of mount pad, and the upper end of spliced pole extends to and sets up in the rotary trough, the commentaries on classics piece rotates to be connected in the rotary trough, spacing slot is seted up on the upside lateral wall of spliced pole, and spacing inserted block insert locate in spacing slot and with the lower extreme fixed connection of commentaries on classics piece, it is a plurality of the limiting plate encircles range fixed mounting on the lateral wall of commentaries on classics piece, and is a plurality of the spacing groove encircles the range is seted up on the inner wall of rotary trough, and a plurality of limiting plates insert respectively and locates in a plurality of spacing grooves.
Preferably, the connecting mechanism comprises a connecting plate and a fastening bolt, the connecting plate is rotatably connected to the upper end of the stamping head, and the connecting plate is fixedly connected with the lower end of the hydraulic rod through the fastening bolt.
Preferably, the elastic mechanism comprises a sliding groove, a sliding block and a first spring, the sliding groove is vertically arranged on the inner wall of a stamping turntable, which penetrates through the stamping turntable, of the stamping head, the sliding block is connected in the sliding groove in a sliding mode and fixedly connected to the side wall of the stamping head, and the sliding block is connected with the inner wall of the lower side of the sliding groove through the first spring.
Preferably, the second adjusting mechanism comprises a groove, a support column, jacks, an insert rod, a connecting plate, a mounting groove and a second spring, the groove is formed in the inner wall of the lower side of the mounting seat, the support column is connected to the inner wall of the lower side of the groove in a rotating mode, the upper end of the support column is fixedly connected with the lower end of the station turntable, the jacks are arranged on the side wall of the support column in a surrounding mode, the insert rod transversely penetrates through the side wall of the mounting seat and is inserted into one of the jacks, the connecting plate is fixedly mounted on the side wall of the insert rod, the mounting groove is formed in the side wall of the mounting seat, and the connecting plate is connected with the inner wall of the mounting groove.
Preferably, the surfaces of the base and the mounting seat are both sprayed with anti-corrosion paint.
Compared with the related art, the turret type hydraulic punch press provided by the invention has the following beneficial effects:
(1) according to the invention, the connecting column is rotated through the first adjusting mechanism, the punching turntable is rotated, the corresponding required punching head is positioned under the hydraulic rod and is fixedly connected with the hydraulic rod, the station turntable is rotated through the second adjusting mechanism, the corresponding station is aligned with the punching head above, and then punching operation can be carried out on other workpieces.
(2) The first adjusting mechanism and the second adjusting mechanism respectively adjust the punching rotary table and the station rotary table, so that the operation is convenient and rapid, the working efficiency is improved, the punching heads are always close to the upper part of the punching rotary table under the action of the elastic force of the first spring and without the action of external force, other punching heads cannot interfere with the normal work of the punching heads, and meanwhile, the punching heads are connected with the punching rotary table and cannot fall off.
Drawings
Fig. 1 is a schematic structural diagram of a turret hydraulic punch press according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of the coupling mechanism shown in FIG. 1;
FIG. 3 is a schematic view of the structure shown at A in FIG. 1;
FIG. 4 is a schematic view of the structure shown at B in FIG. 1;
fig. 5 is a schematic structural view at C shown in fig. 1.
Reference numbers in the figures: 1. the base, 2, turret punch press mechanism, 21, the mount pad, 22, the punching press carousel, 23, the spliced pole, 24, the punching press head, 25, the station carousel, 26, the station, 27, the pneumatic cylinder, 28, the hydraulic stem, 3, first adjustment mechanism, 31, the rotary trough, 32, the rotary block, 33, spacing slot, 34, spacing inserted block, 35, the limiting plate, 36, the spacing groove, 4, coupling mechanism, 41, the connecting plate, 42, fastening bolt, 5, elastic mechanism, 51, the spout, 52, the slider, 53, first spring, 6, second adjustment mechanism, 61, the recess, 62, the support column, 63, the jack, 64, the inserted bar, 65, the connecting plate, 66, the mounting groove, 67, the second spring.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, a turret type hydraulic press comprises a base 1, a turret type press mechanism 2, a first adjusting mechanism 3, a connecting mechanism 4, an elastic mechanism 5 and a second adjusting mechanism 6, wherein the turret type press mechanism 2 is fixedly installed at the upper end of the base 1, the turret type press mechanism 2 comprises an installation base 21, a punching turntable 22, a connecting column 23, a punching head 24, a station turntable 25, a station 26, a hydraulic cylinder 27 and a hydraulic rod 28, the installation base 21 is fixedly installed on the upper side wall of the base 1, the punching turntable 22 is rotatably connected to the upper side wall of the installation base 21 through the connecting column 23, the plurality of punching heads 24 vertically penetrate through the punching turntable 22 in a surrounding manner and are slidably connected with the punching turntable 25, the station turntable 25 is rotatably connected to the lower side wall of the installation base 21, the hydraulic cylinder 27 is fixedly installed on the upper side wall of the installation base 21, one end of the hydraulic rod 28, one end of the hydraulic rod 28, which is far away from the hydraulic cylinder 27, penetrates through the side wall of the upper side of the mounting base 21 and is fixedly connected with one of the punching heads 24, in the use process of the device, a workpiece is placed in a station 26 corresponding to the lower part of the punching head 24 connected with the hydraulic rod 28, the hydraulic cylinder 27 drives the hydraulic rod 28 to extend, so as to drive the corresponding punching head 24 to descend, punching operation is carried out on the workpiece, when other workpieces need to be punched, the connection between the punching head 24 and the hydraulic rod 28 is released, the connecting column 23 is rotated through the first adjusting mechanism 3, the punching turntable 22 is rotated, the corresponding needed punching head 24 is positioned under the hydraulic rod 28 and is fixedly connected with the hydraulic rod 28, the station turntable 25 is rotated through the second adjusting mechanism 6, the corresponding station 26 is aligned with the punching head 24 above, so that the punching operation can be carried out on other workpieces, and the device can process different workpieces, the application range of the device is improved.
Referring to fig. 3, the first adjusting mechanism 3 is disposed on the upper side wall of the mounting base 21, the first adjusting mechanism 3 includes a rotating groove 31, a rotating block 32, a limiting slot 33, a limiting insert block 34, a limiting plate 35 and a limiting groove 36, the rotating groove 31 is vertically disposed on the upper side wall of the mounting base 21, the upper end of the connecting post 23 extends into the rotating groove 31, the rotating block 32 is rotatably connected to the rotating groove 31, the limiting slot 33 is disposed on the upper side wall of the connecting post 23, the limiting insert block 34 is inserted into the limiting slot 33 and is fixedly connected to the lower end of the rotating block 32, the limiting plates 35 are fixedly disposed on the side wall of the rotating block 32 in a surrounding manner, the limiting grooves 36 are disposed on the inner wall of the rotating groove 31 in a surrounding manner, and the limiting plates 35 are respectively inserted into the limiting grooves 36, when the punching head 24 needs to be adjusted by rotating the punching press turntable 22, the rotating block 32 is pulled upwards to separate the limiting insert block 34 from the limiting slot 33, can rotate and change piece 32, because limiting plate 35 is located spacing groove 36, when changeing piece 32 and rotating, can drive spliced pole 23 and rotate to drive punching press carousel 22 and rotate, adjust different punching press head 24, loosen and change piece 32, make spacing inserted block 34 inject corresponding spacing slot 33 in, can restrict spliced pole 23, thereby fix punching press carousel 22, convenient operation is swift, has improved work efficiency.
Referring to fig. 2, the connecting mechanism 4 is rotatably connected to the upper end of the punch head 24, the connecting mechanism 4 includes a connecting plate 41 and a fastening bolt 42, the connecting plate 41 is rotatably connected to the upper end of the punch head 24, the connecting plate 41 is fixedly connected to the lower end of the hydraulic rod 28 through the fastening bolt 42, and the connecting plate 41 is fixedly connected to the hydraulic rod 28 through the fastening bolt 42, so that the operation is convenient and fast.
Referring to fig. 4, the elastic mechanism 5 is provided in the punching turntable 22, the elastic mechanism 5 includes a sliding groove 51, a sliding block 52 and a first spring 53, the sliding groove 51 is vertically provided on an inner wall of the punching turntable 22 where the punching head 24 penetrates through the punching turntable 22, the sliding block 52 is slidably connected in the sliding groove 51 and fixedly connected to a side wall of the punching head 24, the sliding block 52 is connected with an inner wall of a lower side of the sliding groove 51 through the first spring 53, under the elastic force action of the first spring 53, the punching head 24 is always close to the upper side of the punching turntable 22 without being influenced by an external force, so that the other punching heads 24 do not hinder the normal operation of the punching head 24, and meanwhile, the punching head 24 is connected with the punching turntable 22, so that the punching head 24.
Referring to fig. 1 and 5, the second adjusting mechanism 6 is opened on the lower inner wall of the mounting seat 21, the second adjusting mechanism 6 includes a groove 61, a supporting column 62, a plurality of insertion holes 62, an insertion rod 64, a connecting plate 65, a mounting groove 66 and a second spring 67, the groove 61 is opened on the lower inner wall of the mounting seat 21, the supporting column 62 is rotatably connected to the lower inner wall of the groove 61, the upper end of the supporting column 62 is fixedly connected to the lower end of the station turntable 25, the plurality of insertion holes 62 are arranged around the side wall of the supporting column 62, the insertion rod 64 transversely penetrates through the side wall of the mounting seat 21 and is inserted into one of the insertion holes 64, the connecting plate 65 is fixedly mounted on the side wall of the insertion rod 64, the mounting groove 66 is opened on the side wall of the mounting seat 21, and the connecting plate 65 is connected to the inner wall of the mounting groove 66 through the second spring 67, when the station turntable 25 needs to, make it break away from jack 33, can rotate station carousel 25, adjust different stations 26, after adjusting the completion, loosen inserted bar 34, make it inject corresponding jack 33 in, can restrict support column 62 to make station carousel 25 restrict fixedly, convenient operation is swift.
The surfaces of the base 1 and the mounting seat 21 are both sprayed with anti-corrosion paint, and the anti-corrosion paint is sprayed on the surfaces of the base 1 and the mounting seat 21, so that the corrosion resistance is improved, and the service life is prolonged.
The working principle of the device is as follows: in the use process of the device, a workpiece is placed in a working position 26 corresponding to the lower part of a stamping head 24 connected with a hydraulic rod 28, the hydraulic rod 28 is driven by a hydraulic cylinder 27 to extend, so as to drive the corresponding stamping head 24 to descend, stamping operation is carried out on the workpiece, when other workpieces need to be stamped, the connection between the stamping head 24 and the hydraulic rod 28 is removed, when the stamping turntable 22 needs to be rotated to adjust the stamping head 24, a rotating block 32 is pulled upwards, a limiting insert block 34 is separated from a limiting slot 33, the rotating block 32 can be rotated, because a limiting plate 35 is positioned in a limiting slot 36, when the rotating block 32 rotates, a connecting column 23 can be driven to rotate, so as to drive the stamping turntable 22 to rotate, different stamping heads 24 are adjusted, the rotating block 32 is loosened, the limiting insert block 34 is inserted into the corresponding limiting slot 33, the connecting column 23 can be limited, and the stamping turntable 22 is fixed, the corresponding needed punching head 24 is located under the hydraulic rod 28, the connecting plate 41 on the corresponding punching head 24 is fixedly connected with the hydraulic rod 28 through the fastening bolt 42, when the station turntable 25 needs to be rotationally adjusted, the inserting rod 64 is pulled outwards to be separated from the inserting hole 33, the station turntable 25 can be rotated, different stations 26 are adjusted, after the adjustment is completed, the inserting rod 34 is loosened to be inserted into the corresponding inserting hole 33, the supporting column 62 can be limited, the station turntable 25 is limited and fixed, the corresponding station 26 is aligned with the punching head 24 above, the punching operation can be performed on other workpieces, the device can process different workpieces, and the application range of the device is improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A turret type hydraulic punch press is characterized by comprising a base (1), a turret type punch press mechanism (2), a first adjusting mechanism (3), a connecting mechanism (4), an elastic mechanism (5) and a second adjusting mechanism (6), wherein the turret type punch press mechanism (2) is fixedly arranged at the upper end of the base (1), the turret type punch press mechanism (2) comprises a mounting seat (21), a punching turntable (22), a connecting column (23), punching heads (24), a station turntable (25), a station (26), a hydraulic cylinder (27) and a hydraulic rod (28), the mounting seat (21) is fixedly arranged on the upper side wall of the base (1), the punching turntable (22) is rotatably connected to the upper side wall of the mounting seat (21) through the connecting column (23), and the punching heads (24) vertically penetrate through the punching turntable (22) in a surrounding mode and are in sliding connection with the punching turntable, the station turntable (25) is rotatably connected to the inner wall of the lower side of the mounting base (21), the hydraulic cylinder (27) is fixedly mounted on the side wall of the upper side of the mounting base (21), one end of a hydraulic rod (28) of the station turntable is fixedly mounted on the output end of the hydraulic cylinder (27), and one end, far away from the hydraulic cylinder (27), of the hydraulic rod (28) penetrates through the side wall of the upper side of the mounting base (21) and is fixedly connected with one of the stamping heads (24); the first adjusting mechanism (3) is arranged on the side wall of the upper side of the mounting seat (21); the connecting mechanism (4) is rotatably connected to the upper end of the stamping head (24); the elastic mechanism (5) is arranged in the stamping turntable (22); the second adjusting mechanism (6) is arranged on the inner wall of the lower side of the mounting seat (21).
2. The turret type hydraulic punch press according to claim 1, wherein the first adjusting mechanism (3) comprises a rotating groove (31), a rotating block (32), a limiting slot (33), a limiting insert block (34), a limiting plate (35) and a limiting groove (36), the rotating groove (31) is vertically formed in the upper side wall of the mounting seat (21), the upper end of the connecting column (23) extends into the rotating groove (31) to be arranged, the rotating block (32) is rotatably connected into the rotating groove (31), the limiting slot (33) is formed in the upper side wall of the connecting column (23), the limiting insert block (34) is inserted into the limiting slot (33) and is fixedly connected with the lower end of the rotating block (32), the limiting plates (35) are fixedly installed on the side wall of the rotating block (32) in a surrounding mode, the limiting grooves (36) are formed in the inner wall of the rotating groove (31) in a surrounding mode, and the plurality of limiting plates (35) are respectively inserted into the plurality of limiting grooves (36).
3. Turret-type hydraulic press according to claim 1, characterized in that the connection means (4) comprise a connection plate (41) and a fastening bolt (42), the connection plate (41) being rotatably connected to the upper end of the press head (24), and the connection plate (41) being fixedly connected to the lower end of the hydraulic rod (28) by means of the fastening bolt (42).
4. The turret-type hydraulic press according to claim 1, wherein the elastic mechanism (5) comprises a sliding groove (51), a sliding block (52) and a first spring (53), the sliding groove (51) is vertically arranged on an inner wall of a punching turntable (22) of the punching head (24) penetrating through the punching turntable (22), the sliding block (52) is slidably connected in the sliding groove (51) and fixedly connected to a side wall of the punching head (24), and the sliding block (52) is connected with an inner wall of a lower side of the sliding groove (51) through the first spring (53).
5. The turret-type hydraulic press according to claim 1, wherein the second adjusting mechanism (6) comprises a groove (61), a supporting column (62), a jack (62), an inserting rod (64), a connecting plate (65), a mounting groove (66) and a second spring (67), the groove (61) is formed on the lower inner wall of the mounting seat (21), the supporting column (62) is rotatably connected to the lower inner wall of the groove (61), the upper end of the supporting column (62) is fixedly connected with the lower end of the station turntable (25), the jacks (62) are arranged around the side wall of the supporting column (62), the inserting rod (64) transversely penetrates through the side wall of the mounting seat (21) and is inserted into one of the jacks (64), the connecting plate (65) is fixedly mounted on the side wall of the inserting rod (64), the mounting groove (66) is formed on the side wall of the mounting seat (21), and the connecting plate (65) is connected with the inner wall of the mounting groove (66) through a second spring (67).
6. Turret-type hydraulic press according to claim 1, characterized in that the surfaces of the base (1) and the mounting seat (21) are both sprayed with an anti-corrosion paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010148107.6A CN111346961A (en) | 2020-03-05 | 2020-03-05 | Turret type hydraulic punching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010148107.6A CN111346961A (en) | 2020-03-05 | 2020-03-05 | Turret type hydraulic punching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111346961A true CN111346961A (en) | 2020-06-30 |
Family
ID=71194259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010148107.6A Withdrawn CN111346961A (en) | 2020-03-05 | 2020-03-05 | Turret type hydraulic punching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111346961A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022099633A1 (en) * | 2020-11-13 | 2022-05-19 | 盐城都亭汽车部件有限公司 | Hole pressing mechanism for use in automobile part |
| CN114749543A (en) * | 2022-06-16 | 2022-07-15 | 江苏鸿迅机车有限公司 | Stamping equipment for frame plate |
| WO2023000546A1 (en) * | 2021-07-22 | 2023-01-26 | 林志斌 | Stamping apparatus, sorting machine, and building glass packaging structure |
-
2020
- 2020-03-05 CN CN202010148107.6A patent/CN111346961A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022099633A1 (en) * | 2020-11-13 | 2022-05-19 | 盐城都亭汽车部件有限公司 | Hole pressing mechanism for use in automobile part |
| WO2023000546A1 (en) * | 2021-07-22 | 2023-01-26 | 林志斌 | Stamping apparatus, sorting machine, and building glass packaging structure |
| CN114749543A (en) * | 2022-06-16 | 2022-07-15 | 江苏鸿迅机车有限公司 | Stamping equipment for frame plate |
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Application publication date: 20200630 |