CN117983701B - Stamping device of copper connecting piece for power equipment - Google Patents
Stamping device of copper connecting piece for power equipment Download PDFInfo
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- CN117983701B CN117983701B CN202410405612.2A CN202410405612A CN117983701B CN 117983701 B CN117983701 B CN 117983701B CN 202410405612 A CN202410405612 A CN 202410405612A CN 117983701 B CN117983701 B CN 117983701B
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- copper plate
- stamping
- copper
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 79
- 239000010949 copper Substances 0.000 title claims abstract description 79
- 238000004080 punching Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000002146 bilateral effect Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 abstract description 21
- 239000000463 material Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- Bending Of Plates, Rods, And Pipes (AREA)
- Wire Processing (AREA)
Abstract
The invention relates to the technical field of stamping and discloses a stamping device for a copper connecting piece for electric equipment, which comprises a base with a concave structure, wherein a stamping head for stamping a copper plate is arranged right above the base, two bilaterally symmetrical grooves are formed at the top of the base, support columns in front and back axial directions are rotationally connected in each groove, slots are formed on the circumferential surfaces of the two support columns, and two sides of the copper plate can be placed in the two slots to be positioned. When the device is used for stamping the copper plate, whether the bending angle of the copper plate can meet the expectations after the material rebounds can be obviously judged, one copper plate can be used for normal stamping in advance, whether the copper plate can be attached to the slot bottom after the copper plate rebounds after being excessively bent is observed, the descending amplitude of the stamping head can be debugged according to the attaching state of the side edge of the copper plate and the slot bottom, and the stamping head can be controlled to excessively bend the copper plate to a proper degree.
Description
Technical Field
The invention relates to the technical field of stamping, in particular to a stamping device for a copper connecting piece for power equipment.
Background
The stamping device of copper connectors for electrical power equipment is an apparatus for manufacturing copper connectors required in electrical power equipment, which are commonly used for wire and cable connections in electrical systems, such as for distribution boxes, switching devices, circuit breakers, etc. The stamping device utilizes a stamping process to enable the metal plate to be formed according to the shape of the die by placing the metal plate in the die and then applying high pressure force. The device can efficiently produce a large number of copper connecting pieces, has the characteristics of complex shape, high precision and high production efficiency, and meets the requirements on the quality and the quantity of the connecting pieces in the manufacturing of power equipment. Copper connectors for electrical equipment are of a wide variety and commonly include: binding post, ground clamp, elbow, straight head, T-shaped head pipe fitting, binding post strip and binding post frame etc.. The wire connection frame is usually composed of a copper wire guide plate, and is bent into different shapes so as to fix wires and maintain connection stability.
The lead plates can be used for stamping and bending the copper plate into an L-shaped shape by using a stamping device in the production process, and rebound stress can be generated after the copper plate is impacted in the stamping process, so that the copper plate cannot form a standard L-shaped structure, and the molding is inconsistent with the expectation. The most common way to deal with the spring back stress is to over-bend the copper plate to some extent during the stamping of the wire guide plate, so that after stamping the spring back is partially counteracted, thus obtaining a wire guide plate that approximates the desired shape. However, calculating the excessive bending amplitude is a complex process, and involves physical characteristics of materials, stamping process parameters, required final shape and other factors, and particularly when wire guide plates of different types and thicknesses are replaced to perform bending, the excessive bending amplitude of the copper plate material needs to be recalculated, which is time-consuming and labor-consuming.
Disclosure of Invention
The invention aims to provide a punching device for a copper connecting piece for electric equipment, which is used for solving the technical problem that the excessive bending amplitude of wire guide plates of different specifications is required to be calculated and debugged when the traditional punching device punches the wire guide plates of different specifications in an L-shaped structure, so that the punching operation efficiency is influenced.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a stamping device of copper connecting piece for power equipment, including being the base of concave shape structure, be provided with the punching press head that is used for punching press to the copper directly over the base, the top of base is formed with two bilateral symmetry's recess, all rotate in every recess and be connected with and be front and back axial support post, the slot has all been seted up on two support post circumference surfaces, make the both sides of copper can place and obtain the location in two slots, when the punching press head pushes down the copper, two support posts can follow the deformation of copper and rotate, and have on the base and can rotate its fixed setting element when the support post is rotatory to 45.
Preferably, the locating piece comprises two movable rods which are inserted on the base in a sliding manner and are in a vertical direction, a spring used for supporting the movable rods is arranged in the base, arc locating blocks which are abutted against the circumferential surfaces of the supporting columns are fixedly connected to the tops of the two movable rods, and arc grooves corresponding to the arc locating blocks are formed in one sides, opposite to the surfaces of the two supporting columns, so that the supporting columns can be upwards inserted into the arc grooves after rotating for 45 degrees.
Preferably, the inside of base is formed with two bilateral symmetry and constructs the cavity of column structure, and the bottom of two movable rods stretches into respectively in the cavity that corresponds, and all fixed the cup joint has been located the annular piece in the cavity on two movable rods, and the quantity of spring is two and peg graft respectively in the movable rod bottom that corresponds, and the bottom and the cavity inner wall of spring contact, and the top of spring then contradicts on the bottom surface of annular piece.
Preferably, the length of the arc-shaped groove is greater than the width of the arc-shaped positioning block, so that the arc-shaped positioning block can slide along the inner wall of the arc-shaped groove when inserted into the arc-shaped groove, and the rotation angle of the supporting column can be greater than 45 degrees.
Preferably, the front of the base is fixedly connected with two bilaterally symmetrical convex blocks, the two supporting columns are rotationally inserted at the top of the base through bearings, one sides, away from each other, of the surfaces of the two supporting columns are fixedly connected with fixing rods, one ends of the two convex blocks and the two fixing rods are fixedly connected with hooks, and a tension spring is connected between each convex block and the corresponding fixing rod through the hook.
Preferably, a connecting rod is arranged on the front surface of the base, and the positions of the two movable rods can be lowered simultaneously by pulling the connecting rod by hand, so that the arc-shaped positioning blocks are separated from the arc-shaped grooves, and the reset of the supporting columns is realized.
Preferably, the surfaces of the two movable rods are fixedly connected with two column-shaped blocks which are bilaterally symmetrical and are positioned in the grooves, the front surface of the base is connected with two bilaterally symmetrical steel sheets in a penetrating way, two sides of the connecting rod are respectively fixed with the two steel sheets, one sides of the two steel sheets, which are far away from the connecting rod, are respectively extended into the corresponding grooves and are fixedly connected with two symmetrical inclined plates, and the bottom surface of each inclined plate is contacted with the surfaces of the corresponding column-shaped blocks.
Preferably, the front surface of the connecting rod is fixedly connected with a holding block.
Preferably, the front of the base is fixedly connected with two bilateral symmetry limit rods, and the bottoms of the two fixing rods are respectively abutted against the two limit rods.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
Firstly, when the device is used for stamping copper plates, whether the bending angle of the copper plates can meet expectations after materials rebound can be obviously judged, when the copper plates with different specification thicknesses are replaced for stamping, one copper plate can be used for normal stamping in advance, after the copper plates are excessively bent, whether the copper plates can be attached to the slot bottoms after rebound is observed, the descending amplitude of the stamping head can be debugged according to the attaching state of the side edges of the copper plates and the slot bottoms, the copper plates can be excessively bent to a proper degree by the stamping head under the rapid control, the calculation process of excessively bending the copper plates with different thicknesses is omitted, and the efficiency of stamping operation is effectively improved.
Secondly, the two supporting columns of the device can rotate along with the bending of the copper plate when the copper plate is bent, so that the relative displacement and surface scratch of the copper plate in the bending forming process can be avoided, and the surface of the produced lead plate can be kept intact.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic elevational view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of another perspective structure of the present invention;
FIG. 5 is an enlarged schematic view of the structure A in FIG. 4 according to the present invention;
FIG. 6 is a schematic view of the support column structure of the present invention;
fig. 7 is a schematic view of the usage state of the present invention.
In the figure: 1. a base; 2. punching heads; 3. a groove; 4. a support column; 5. a slot; 6. a movable rod; 7. an arc-shaped positioning block; 8. an arc-shaped groove; 9. a cavity; 10. an annular block; 11. a spring; 12. a limit rod; 13. a hook; 14. a steel sheet; 15. a connecting rod; 16. holding blocks; 17. a bump; 18. a fixed rod; 19. a tension spring; 20. a sloping plate; 21. column-shaped blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
It will be apparent that numerous specific details are set forth in the following description in order to provide a thorough understanding of the present invention, but that the present invention may be practiced in other ways than as described herein, and therefore the present invention is not limited to the specific embodiments of the present disclosure.
Referring to fig. 1-3, the invention provides a stamping device for a copper connecting piece for electric equipment, which comprises a base 1 with a concave structure, wherein a stamping head 2 which can be lifted and used for stamping a copper plate is arranged right above the base 1, two grooves 3 which are bilaterally symmetrical are formed at the top of the base 1, support columns 4 which are in front-rear axial directions are rotationally connected in each groove 3, slots 5 are formed on the circumferential surfaces of the two support columns 4, and the left side and the right side of the copper plate can be respectively placed in the two slots 5, so that the copper plate can be positioned, and the copper plate can be placed right below the stamping head 2;
When the stamping head 2 presses down the copper plate, the copper plate is bent into an expected L-shaped shape on the two supporting columns 4, and the copper plate is inserted into the slots 5 on the surfaces of the supporting columns 4, so that the copper plate can drive the supporting columns 4 to rotate along with bending (as shown in a state of fig. 7) in the deformation process;
when the supporting columns 4 rotate to 45 degrees, the base 1 is provided with a positioning piece capable of fixing the supporting columns 4, at the moment, the two supporting columns 4 can keep a state of rotating by 45 degrees, so that the two slots 5 can also keep an inclined state, when the stamping head 2 excessively bends a copper plate, the bending angle of the copper plate can be larger than 90 degrees, after the stamping head 2 rises, the copper plate can rebound to a certain extent under the action of rebound stress, at the moment, if the bending angle is enabled to approach 90 degrees after rebound, namely, L-shaped bending which accords with the stamping expectation of a wire guide plate is realized, two sides of the copper plate can be attached to the bottoms of the two inclined slots 5, and if the bending angle of the copper plate deviates more than 90 degrees, a worker can easily observe the state that two sides of the copper plate are not attached to the slots 5, and when the copper plate is pressed downwards by hands, the copper plate can obviously shake left and right between the two supporting columns 4.
Under the design, the device can obviously judge whether the bending angle of the copper plate can meet the expectations after the material rebounds when the copper plate is punched. Then, when the copper plates with different specification thicknesses are replaced to be punched, one copper plate can be used in advance for normal punching, after the copper plate is excessively bent, whether the copper plate can be attached to the bottom of the slot 5 after rebound is observed, the descending amplitude of the punching head 2 can be debugged according to the attaching state of the side edge of the copper plate and the bottom of the slot 5, the punching head 2 can be controlled to excessively bend the copper plate to a proper degree rapidly, the calculation process of excessively bending materials with different thicknesses is omitted, and the efficiency of punching operation is effectively improved.
Meanwhile, the traditional device supports the copper plate by adopting the fixing blocks, so that displacement and scratch are easy to occur on the surface of the copper plate at the bending position, and as the two supporting columns 4 of the device can rotate along with the bending of the copper plate when the copper plate is bent, the relative displacement and surface scratch of the copper plate in the bending forming process can be avoided, and the surface of the wire guide plate can be kept intact.
On the basis of the above, referring to fig. 3-6, the positioning member includes two movable rods 6 slidingly inserted on the base 1 and in a vertical direction, a spring 11 for supporting the movable rods 6 is provided in the base 1, the tops of the two movable rods 6 are fixedly connected with arc positioning blocks 7 abutting against the circumferential surface of the supporting column 4, and one side of the two supporting columns 4 opposite to the surface is provided with arc grooves 8 corresponding to the arc positioning blocks 7, so that the arc positioning blocks 7 can be inserted into the arc grooves 8 upwards after the supporting column 4 rotates for 45 degrees, the positions of the supporting columns 4 are fixed, and the slots 5 can keep a state of rotating for 45 degrees.
Furthermore, two cavities 9 which are bilaterally symmetrical and are in a column structure are formed in the base 1, bottoms of the two movable rods 6 respectively extend into the corresponding cavities 9, annular blocks 10 positioned in the cavities 9 are fixedly sleeved on the two movable rods 6, the number of the springs 11 is two, the bottoms of the springs 11 are respectively spliced at the bottoms of the corresponding movable rods 6, the bottoms of the springs 11 are contacted with the inner walls of the cavities 9, and the tops of the springs 11 are abutted against the bottom surface of the annular blocks 10, so that the springs 11 can always push the annular blocks 10 and the movable rods 6 to move upwards through the elastic action of the springs, and therefore the arc-shaped positioning blocks 7 can abut against the surface of the supporting column 4, and after the supporting column 4 rotates to 45 degrees, the arc-shaped positioning blocks 7 can be inserted into the arc-shaped grooves 8 to fix the positions of the supporting column 4.
It should be noted that, the length of the arc-shaped groove 8 is greater than the width of the arc-shaped positioning block 7, so that the arc-shaped positioning block 7 can slide along the inner wall of the arc-shaped groove 8 when inserted into the arc-shaped groove 8, and the rotation angle of the supporting column 4 can be greater than 45 degrees, so that the arc-shaped positioning block can be matched with excessive bending of copper plates greater than 90 degrees.
Under the above design, in order to enable the stamping head 2 to stamp the copper plate and then the supporting columns 4 to keep a state of rotating 45 degrees, it is proposed that two bilaterally symmetrical protruding blocks 17 are fixedly connected to the front surface of the base 1, the two supporting columns 4 are rotatably inserted into the top of the base 1 through bearings, the fixing rods 18 are fixedly connected to the sides, away from each other, of the surfaces of the two supporting columns 4, one ends of the two protruding blocks 17 and the two fixing rods 18 are fixedly connected with hooks 13, and tension springs 19 are connected between each protruding block 17 and the corresponding fixing rod 18 through the hooks 13, so that after the stamping head 2 stamps the copper plate, the supporting columns 4 are pulled to rotate and reset under the elastic action of the tension springs 19, so that the arc positioning blocks 7 move along the arc-shaped grooves 8 and contact the inner walls of the arc-shaped grooves 8, and the supporting columns 4 keep a state of rotating 45 degrees.
In some embodiments, a connecting rod 15 may be disposed on the front surface of the base 1, and pulling the connecting rod 15 by hand can lower the positions of the two movable rods 6 simultaneously, so that the arc-shaped positioning block 7 is separated from the arc-shaped groove 8, and thus the tension spring 19 can pull the supporting column 4 to rotate and realize resetting.
In order to enable the two movable rods 6 to descend simultaneously, two column-shaped blocks 21 which are bilaterally symmetrical and are positioned in the grooves 3 are fixedly connected to the surfaces of the two movable rods 6, two bilaterally symmetrical steel sheets 14 are connected to the front of the base 1 in a penetrating manner, two sides of the connecting rod 15 are respectively fixed with the two steel sheets 14, one sides of the two steel sheets 14, far away from the connecting rod 15, extend into the corresponding grooves 3 respectively and are fixedly connected with two symmetrical inclined plates 20, the bottom surface of each inclined plate 20 is contacted with the surfaces of the corresponding column-shaped blocks 21, through the design, when the movable rods 6 are lifted upwards, the column-shaped blocks 21 push the inclined plates 20 to move forwards, and when the movable rods 6 are required to descend, the connecting rod 15 is pulled, the inclined plates 20 also move along with the connecting rod 15, at the moment, the bottoms of the inclined plates 20 are contacted with the column-shaped blocks 21 and the movable rods 6 are pressed downwards, the springs 11 can shrink through the elastic action of the springs, the movable rods 6 can descend, and the arc-shaped blocks 7 can be separated from the inner parts of the arc-shaped blocks 8, so that the arc-shaped blocks 4 can rotate and reset the arc-shaped supporting grooves 4. And a holding block 16 can be fixedly connected to the front surface of the connecting rod 15, so that the fingers of a worker can conveniently hold the holding block 16 to pull the connecting rod 15 outwards.
It should be noted that, two bilateral symmetry's gag lever posts 12 are fixedly connected with in the front of base 1, and the bottom of two dead levers 18 is contradicted respectively on two gag lever posts 12 for extension spring 19 is pulling support post 4 and is rotatory and reset, and support post 4 is rotated 45 back dead lever 18 just can contact with gag lever post 12, ensures that support post 4 can accurate reset, and keeps slot 5 up's state.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (2)
1. The utility model provides a stamping device of copper connecting piece for power equipment, is including base (1) that are concave shape structure, is provided with punching press head (2) that are used for punching press to the copper directly over base (1), its characterized in that: two bilaterally symmetrical grooves (3) are formed at the top of the base (1), support columns (4) in front and back axial directions are rotationally connected in each groove (3), slots (5) are formed in the circumferential surfaces of the two support columns (4), two sides of a copper plate can be placed in the two slots (5) to be positioned, when the punching head (2) presses down the copper plate, the two support columns (4) can rotate along with deformation of the copper plate, and the base (1) is provided with a positioning piece capable of fixing the support columns (4) when the support columns rotate to 45 degrees;
the positioning piece comprises two movable rods (6) which are inserted on the base (1) in a sliding manner and are in a vertical direction, springs (11) used for supporting the movable rods (6) are arranged in the base (1), arc positioning blocks (7) which are abutted against the circumferential surfaces of the supporting columns (4) are fixedly connected to the tops of the two movable rods (6), arc grooves (8) corresponding to the arc positioning blocks (7) are formed in one sides, opposite to the surfaces of the two supporting columns (4), of the two supporting columns, and the arc positioning blocks (7) can be inserted into the arc grooves (8) upwards after the supporting columns (4) rotate for 45 degrees;
Two symmetrical cavities (9) which are in a column structure are formed in the base (1), the bottoms of the two movable rods (6) respectively extend into the corresponding cavities (9), annular blocks (10) positioned in the cavities (9) are fixedly sleeved on the two movable rods (6), the number of springs (11) is two, the springs are respectively inserted into the bottoms of the corresponding movable rods (6), the bottoms of the springs (11) are in contact with the inner wall of the cavities (9), and the tops of the springs (11) are abutted against the bottom surface of the annular blocks (10); the length of the arc-shaped groove (8) is larger than the width of the arc-shaped positioning block (7), so that the arc-shaped positioning block (7) can slide along the inner wall of the arc-shaped groove (8) when inserted into the arc-shaped groove (8), and the rotation angle of the supporting column (4) can be larger than 45 degrees;
The front of the base (1) is fixedly connected with two bilaterally symmetrical convex blocks (17), the two supporting columns (4) are rotationally inserted into the top of the base (1) through bearings, one sides, far away from each other, of the surfaces of the two supporting columns (4) are fixedly connected with fixing rods (18), one ends of the two convex blocks (17) and the two fixing rods (18) are fixedly connected with hooks (13), and tension springs (19) are connected between each convex block (17) and the corresponding fixing rod (18) through the hooks (13); the front of the base (1) is fixedly connected with two bilateral symmetry limiting rods (12), and the bottoms of the two fixing rods (18) are respectively abutted against the two limiting rods (12);
A connecting rod (15) is arranged on the front surface of the base (1), and the positions of the two movable rods (6) can be lowered simultaneously by pulling the connecting rod (15) by hand, so that the arc-shaped positioning blocks (7) are separated from the arc-shaped grooves (8) and the reset of the supporting columns (4) is realized; the surface of two movable rods (6) is fixedly connected with two bilateral symmetry and is located column type piece (21) in recess (3), the front interlude of base (1) is connected with two bilateral symmetry steel sheet (14), the both sides of connecting rod (15) are fixed with two steel sheet (14) respectively, one side that connecting rod (15) was kept away from to two steel sheet (14) extends to in corresponding recess (3) respectively and fixedly connected with two symmetrical swash plates (20), and the bottom surface of every swash plate (20) all contacts with the surface of corresponding column type piece (21).
2. The stamping device for copper connectors for electrical equipment as recited in claim 1, wherein: the front surface of the connecting rod (15) is fixedly connected with a holding block (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410405612.2A CN117983701B (en) | 2024-04-07 | 2024-04-07 | Stamping device of copper connecting piece for power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410405612.2A CN117983701B (en) | 2024-04-07 | 2024-04-07 | Stamping device of copper connecting piece for power equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN117983701A CN117983701A (en) | 2024-05-07 |
| CN117983701B true CN117983701B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410405612.2A Active CN117983701B (en) | 2024-04-07 | 2024-04-07 | Stamping device of copper connecting piece for power equipment |
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| CN (1) | CN117983701B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN217831359U (en) * | 2022-08-10 | 2022-11-18 | 株洲振邦科技实业有限公司 | Bracing plate bending tool |
| CN219745916U (en) * | 2023-04-27 | 2023-09-26 | 重庆市皓峰模具有限公司 | Rotating shaft forming die for C-shaped sheet metal part |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB896712A (en) * | 1958-02-06 | 1962-05-16 | Stanley Arthur Johnson | Die for use in bending flat metal stock and the like |
| JP3338317B2 (en) * | 1996-12-04 | 2002-10-28 | 株式会社アマダ | Die for sheet bending machine |
| JP2000246341A (en) * | 1999-02-25 | 2000-09-12 | Tiger Kosan:Kk | Metal plate bending device with rotation restraining implement |
| EP1319450B1 (en) * | 2000-08-11 | 2008-05-28 | Amada Company, Ltd. | Bending apparatus |
| CN204842703U (en) * | 2015-08-26 | 2015-12-09 | 厦门宏发电气有限公司 | Steel sheet does not have indentation lower mould device of bending |
| CN111774447A (en) * | 2020-07-10 | 2020-10-16 | 马鞍山市拓甲精密机械配件有限公司 | Constant-angle bending die assembly for ductile plate |
| CN217432679U (en) * | 2022-04-12 | 2022-09-16 | 南通腾中机械有限公司 | Multi-angle parameter adjustable bending machine capable of reducing die replacement |
| CN218015047U (en) * | 2022-09-09 | 2022-12-13 | 泉州正元工艺有限公司 | Ironwork bending machine |
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2024
- 2024-04-07 CN CN202410405612.2A patent/CN117983701B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217831359U (en) * | 2022-08-10 | 2022-11-18 | 株洲振邦科技实业有限公司 | Bracing plate bending tool |
| CN219745916U (en) * | 2023-04-27 | 2023-09-26 | 重庆市皓峰模具有限公司 | Rotating shaft forming die for C-shaped sheet metal part |
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