CN219683722U - Punching device for C-shaped steel machining - Google Patents
Punching device for C-shaped steel machining Download PDFInfo
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- CN219683722U CN219683722U CN202321101974.XU CN202321101974U CN219683722U CN 219683722 U CN219683722 U CN 219683722U CN 202321101974 U CN202321101974 U CN 202321101974U CN 219683722 U CN219683722 U CN 219683722U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 78
- 239000010959 steel Substances 0.000 title claims abstract description 78
- 238000004080 punching Methods 0.000 title claims abstract description 59
- 238000003754 machining Methods 0.000 title claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 11
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 23
- 230000008569 process Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 208000004350 Strabismus Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to a punching device for machining C-shaped steel, which comprises a feeding seat, wherein a motor is fixedly connected to the right side of the feeding seat, a threaded rod is fixedly connected to an output shaft of the motor, a threaded block is connected to the outer side of the threaded rod in a threaded manner, a moving block is fixedly connected to the top of the threaded block, an adjusting plate is fixedly connected to the top of the moving block, driving blocks are fixedly connected to the left side and the right side of the top of the adjusting plate, a C-shaped steel body is movably connected to the top of the driving blocks, driving motors are fixedly connected to the tops of the two driving blocks, movable screws are fixedly connected to the output shafts of the two driving motors, movable screw blocks are fixedly connected to the outer sides of the two movable screw blocks in a threaded manner, limiting blocks are fixedly connected to the outer sides of the two limiting blocks, and movable clamping plates are fixedly connected to the outer sides of the two limiting blocks. This punching device is used in processing of C shaped steel facilitates the use, has realized the effectual purpose of punching device centre gripping.
Description
Technical Field
The utility model relates to the technical field of punching devices, in particular to a punching device for machining C-shaped steel.
Background
The C-shaped steel is automatically processed and formed by a C-shaped steel forming machine, the C-shaped steel forming machine can automatically complete the forming process of the C-shaped steel according to the given size of the C-shaped steel, the C-shaped steel is widely used for purlins and wall beams of steel structure buildings, and can also be automatically combined into building components such as lightweight roof trusses, brackets and the like, and in addition, the C-shaped steel can also be used for columns, beams, arms and the like in mechanical light industry manufacturing.
In the process of production and processing of the C-shaped steel, a punching device is usually required to punch the C-shaped steel so as to ensure the production quality of the C-shaped steel, for example, a punching device for flange production, which is proposed in China patent CN215697278U, is provided with a motor to drive a connecting plate to rotate, positions a punching angle through an angle adjusting mechanism, and then drives a punching head to punch by utilizing an electric push rod II.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the punching device for processing the C-shaped steel, which has the advantages of good clamping effect and the like, solves the problems that the existing punching device for processing the C-shaped steel has poor clamping effect, and the phenomenon that the punching device easily drops or deviates in the process of punching or adjusting the C-shaped steel is caused, so that the punching device is easy to damage the C-shaped steel, the effect of the punching device on the C-shaped steel is affected, the use is inconvenient, and the use efficiency and the use effect of the punching device are reduced.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a punching device is used in C shaped steel processing, includes the material loading seat, the right side fixedly connected with motor of material loading seat, the output shaft fixedly connected with threaded rod of motor, the outside threaded connection of threaded rod has the screw thread piece, the top fixedly connected with movable block of screw thread piece, the top fixedly connected with regulating plate of movable block, the equal fixedly connected with driving block in the left and right sides at regulating plate top, the equal fixedly connected with C shaped steel body in top swing joint of driving block, two the equal fixedly connected with driving motor in top of driving block, two the equal fixedly connected with movable screw of driving motor's output shaft, two the equal threaded connection in the outside of movable screw has the movable screw piece, two the equal fixedly connected with stopper in the outside of movable screw piece, two the equal fixedly connected with movable splint in the outside of stopper.
Further, the top fixedly connected with mount of material loading seat, the top fixedly connected with hydraulic pump of mount, the exit fixedly connected with hydraulic stem of hydraulic pump, the bottom fixedly connected with activity push pedal of hydraulic stem, the bottom fixedly connected with piercing press of activity push pedal.
Further, the bottom fixedly connected with dead lever of mount, the equal fixedly connected with movable block in the left and right sides of activity push pedal, the bottom fixedly connected with dead lever of dead lever, dead lever and movable block swing joint.
Further, the quantity of dead lever, movable block and fixed block is four, four the fixed through-hole that equals with the dead lever diameter has all been seted up to the inboard of movable block, and four fixed through-holes respectively with four dead lever sliding connection, and the diameter of fixed block is greater than the diameter of fixed through-hole.
Further, the left end fixedly connected with rolling block of threaded rod, the rolling block rotates with the material loading seat to be connected, the left end of threaded rod runs through material loading seat and thread block in proper order and extends to the right side of rolling block.
Further, two the equal fixedly connected with rotating block of bottom of movable screw rod, two the drive block rotates with two rotating blocks respectively and is connected, the bottom of movable screw rod runs through drive block and movable screw rod in proper order and extends to the top of rotating block.
Further, the bottom fixedly connected with movable slide block of regulating plate, fixed spout has been seted up at the top of material loading seat, the quantity of movable slide block and fixed spout is two, two movable slide block respectively with two fixed spout sliding connection, regulating plate and material loading seat swing joint.
Further, fixed square holes are formed in the top of the feeding seat, the moving block is in sliding connection with the fixed square holes, the width of the moving block is equal to that of the fixed square holes, and threaded holes matched with the threads on the outer sides of the two movable screw rods are formed in the inner sides of the two movable screw rods respectively.
Further, limiting long holes are formed in the inner sides of the two driving blocks, the two limiting blocks are respectively connected with the two limiting long holes in a sliding mode, the width of each limiting block is equal to that of each limiting long hole, and the two movable clamping plates are respectively and movably connected with the two driving blocks.
Further, two movable clamp plates are movably connected with the C-shaped steel body, two driving blocks are L-shaped, the punching machine is located above the C-shaped steel body, and a spiral hole matched with the outer thread of the threaded rod is formed in the inner side of the threaded block.
(III) beneficial effects
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
1. this punching device for C shaped steel processing, the C shaped steel body that will punch a hole is put in the top of two driving blocks, can drive two movable screw respectively through two driving motor and rotate, because movable screw and movable screw threaded connection, so two movable screw pivoted in-process can drive two movable screw respectively, two stopper and two movable splint downwardly moving, two movable splint downwardly moving in-process, it can compress tightly fixedly to cooperate two driving blocks, avoid the C shaped steel body to take place the phenomenon that drops or squints at the in-process that punches a hole and adjusts, the effect that the C shaped steel body was punched a hole has been guaranteed, and a whole structure is simple, facilitate the use, realize the effectual purpose of punching device centre gripping, avoid punching device to take place the phenomenon that drops or squints at the in-process that punches a hole or adjusts the C shaped steel, prevent punching device to cause the damage to the C shaped steel, the effect of punching device to C shaped steel processing has been guaranteed, and the availability factor and the result of use of punching device have been improved.
2. This punching device is used in C shaped steel processing can draw in hydraulic oil into the inboard of hydraulic stem through the hydraulic pump, can make the hydraulic stem drive, can drive activity push pedal and piercing press downwardly moving in proper order through the hydraulic stem, the in-process of piercing press downwardly moving can carry out the processing of punching a hole to the C shaped steel body, the purpose of C shaped steel body processing of punching a hole has been realized, can drive the threaded rod through the motor and rotate, because threaded rod and thread block threaded connection, so threaded rod pivoted in-process can drive the thread block in proper order, the movable block, the regulating plate, two drive blocks and C shaped steel body are moved about, the in-process that the C shaped steel body moved about can be adjusted by the position of C shaped steel body, the purpose that the C shaped steel body was adjusted has been realized, can be adjusted according to the position that the C shaped steel body needs to punch a hole, the effect of C shaped steel body processing of punching a hole has been improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a left side view of a connecting structure of a feeding seat in the structure of the utility model;
FIG. 3 is a right side view of the connecting structure of the feeding seat in the structure of the utility model;
FIG. 4 is a front view of a connecting structure of a feeding seat in the structure of the utility model;
FIG. 5 is an enlarged view of the structure of the present utility model at A in FIG. 1;
fig. 6 is an enlarged view of B in fig. 1, which is a structural view of the present utility model.
In the figure: 1. a feeding seat; 2. a motor; 3. a threaded rod; 4. a screw block; 5. a moving block; 6. an adjusting plate; 7. a driving block; 8. a C-shaped steel body; 9. a driving motor; 10. a movable screw; 11. a movable screw block; 12. a limiting block; 13. a movable clamping plate; 14. a fixing frame; 15. a hydraulic pump; 16. a hydraulic rod; 17. a movable push plate; 18. punching machine; 19. a fixed rod; 20. a movable block; 21. a rolling block; 22. a rotating block; 23. a movable slide block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, a punching device for processing C-shaped steel in this embodiment includes a feeding seat 1, a motor 2 is fixedly connected to the right side of the feeding seat 1, an output shaft of the motor 2 is fixedly connected with a threaded rod 3, an outer side of the threaded rod 3 is connected with a threaded block 4, a top of the threaded block 4 is fixedly connected with a moving block 5, a top of the moving block 5 is fixedly connected with an adjusting plate 6, both sides of the top of the adjusting plate 6 are fixedly connected with driving blocks 7, the top of the driving blocks 7 is movably connected with a C-shaped steel body 8, the tops of the two driving blocks 7 are fixedly connected with driving motors 9, output shafts of the two driving motors 9 are fixedly connected with movable screws 10, outer sides of the two movable screws 10 are fixedly connected with movable screw blocks 11, outer sides of the two movable screw blocks 11 are fixedly connected with limiting blocks 12, and outer sides of the two limiting blocks 12 are fixedly connected with movable clamping plates 13.
The top fixedly connected with mount 14 of material loading seat 1, the top fixedly connected with hydraulic pump 15 of mount 14, the exit fixedly connected with hydraulic stem 16 of hydraulic pump 15, the bottom fixedly connected with activity push pedal 17 of hydraulic stem 16, the bottom fixedly connected with piercing press 18 of activity push pedal 17.
The bottom fixedly connected with dead lever 19 of mount 14, the equal fixedly connected with movable block 20 of left and right sides of activity push pedal 17, the bottom fixedly connected with dead lever 19 fixed block, dead lever 19 and movable block 20 swing joint, the quantity of dead lever 19, movable block 20 and fixed block is four, the inboard of four movable blocks 20 has all been offered the fixed through-hole that equals with dead lever 19 diameter, and four fixed through-holes respectively with four dead lever 19 sliding connection, and the diameter of fixed block is greater than the diameter of fixed through-hole.
The left end fixedly connected with rolling block 21 of threaded rod 3, rolling block 21 and material loading seat 1 rotate to be connected, and the left end of threaded rod 3 runs through material loading seat 1 and screw thread piece 4 in proper order and extends to the right side of rolling block 21, and the equal fixedly connected with of bottom of two movable screw rods 10 rotates piece 22, and two drive blocks 7 rotate with two rotation pieces 22 respectively to be connected, and the bottom of movable screw rod 10 runs through drive block 7 and movable screw block 11 in proper order and extends to the top of rotating piece 22.
The fixed sliding chute is offered at the bottom fixedly connected with movable slider 23 of regulating plate 6, fixed sliding chute has been offered at the top of charging seat 1, the quantity of movable slider 23 and fixed sliding chute is two, two movable sliders 23 respectively with two fixed sliding chute sliding connection, regulating plate 6 and charging seat 1 swing joint, two movable sliders 23 and two fixed sliding chute all are the T style of calligraphy, fixed square hole has been offered at the top of charging seat 1, movable block 5 and fixed square hole sliding connection, the width of movable block 5 equals with the width of fixed square hole, the screw hole with two movable screw 10 outside screw looks adaptation has been offered respectively to the inboard of two movable screw 11.
Limiting long holes are formed in the inner sides of the two driving blocks 7, the two limiting blocks 12 are respectively connected with the two limiting long holes in a sliding mode, the width of each limiting block 12 is equal to that of each limiting long groove, the two movable clamping plates 13 are respectively and movably connected with the two driving blocks 7, the two movable clamping plates 13 are movably connected with the C-shaped steel body 8, the two driving blocks 7 are L-shaped, the punching machine 18 is located above the C-shaped steel body 8, a spiral hole matched with the outer threads of the threaded rod 3 is formed in the inner side of the threaded block 4, a shock pad is fixedly connected to the bottom of the feeding seat 1, the bottom end of the hydraulic rod 16 penetrates through the fixing frame 14 and extends to the top of the movable push plate 17, and the fixing frame 14 is L-shaped.
In addition, through setting up the shock pad, can make the bottom of material loading seat 1 have shock attenuation and wear-resisting effect, through setting up material loading seat 1, can hide threaded rod 3 and screw thread piece 4, through setting up movable block 5 and fixed square hole, can restrict screw thread piece 4 and carry out circumferential rotation, through setting up regulating plate 6, can support two drive blocks 7, through setting up two drive blocks 7, can support C shaped steel body 8, through setting up two stopper 12 and two spacing elongated slots, can restrict two movable screw pieces 11 and carry out circumferential rotation, through setting up two drive blocks 7 and two movable clamp plates 13, can guarantee the stability of C shaped steel body 8 centre gripping.
Through setting up mount 14, can support hydraulic pump 15 and hydraulic bar 16, through setting up hydraulic pump 15 and hydraulic bar 16, can drive movable push pedal 17 and piercing press 18 and reciprocate, through setting up movable push pedal 17, can support piercing press 18, through setting up piercing press 18, can punch a hole processing to C shaped steel body 8, through setting up four dead levers 19 and four movable blocks 20, can improve movable push pedal 17 reciprocating stability.
Through setting up the fixed block, can carry out spacingly to movable block 20, avoid movable block 20 to shift out from the outside of dead lever 19 completely, through setting up rolling block 21, can improve threaded rod 3 pivoted stability, through setting up two rotating blocks 22, can improve two movable screw 10 pivoted stability, through setting up two movable slide blocks 23 and two fixed spouts, can improve the stability that regulating plate 6 left and right sides moved.
The working principle of the embodiment is as follows:
(1) The C-shaped steel body 8 needing to be punched is placed above the two driving blocks 7, the two movable screws 10 can be driven to rotate respectively through the two driving motors 9, and the movable screws 10 are in threaded connection with the movable screw blocks 11, so that the two movable screws 10 can respectively drive the two movable screw blocks 11, the two limiting blocks 12 and the two movable clamping plates 13 to move downwards in the rotating process, the two movable clamping plates 13 can compress and fix the C-shaped steel body 8 in the moving process in cooperation with the two driving blocks 7, the phenomenon that the C-shaped steel body 8 falls off or deviates in the punching and adjusting process is avoided, and the punching effect of the C-shaped steel body 8 is guaranteed.
(2) The hydraulic pump 15 can pump hydraulic oil into the inner side of the hydraulic rod 16, so that the hydraulic rod 16 can be driven, the hydraulic rod 16 can sequentially drive the movable push plate 17 and the punching machine 18 to move downwards, and the punching machine 18 can punch the C-shaped steel body 8 in the downward moving process, so that the purpose of punching the C-shaped steel body 8 is realized.
(3) Can drive threaded rod 3 through motor 2 and rotate, because threaded rod 3 and thread piece 4 threaded connection, so threaded rod 3 pivoted in-process can drive thread piece 4 in proper order, movable block 5, regulating plate 6, two drive blocks 7 and C shaped steel body 8 are moved about, the in-process that C shaped steel body 8 moved about can the position of C shaped steel body 8 be adjusted, realized the purpose that C shaped steel body 8 was adjusted, can adjust according to the position that C shaped steel body 8 needs to punch a hole, improved the effect of C shaped steel body 8 punching processing.
Compared with the prior art, the novel punching device has the advantages that the novel punching device is simple in integral structure and convenient to use, the purpose that the clamping effect of the punching device is good is achieved, the phenomenon that the punching device falls off or deviates in the process of punching or adjusting the C-shaped steel is avoided, the C-shaped steel is prevented from being damaged by the punching device, the effect of the punching device on the C-shaped steel in punching processing is guaranteed, and the use efficiency and the use effect of the punching device are improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Punching device for C shaped steel processing, including material loading seat (1), its characterized in that: the feeding device comprises a feeding seat (1), wherein a motor (2) is fixedly connected to the right side of the feeding seat (1), a threaded rod (3) is fixedly connected to an output shaft of the motor (2), a threaded block (4) is fixedly connected to the outer side of the threaded rod (3), a movable block (5) is fixedly connected to the top of the threaded block (4), a regulating plate (6) is fixedly connected to the top of the movable block (5), driving blocks (7) are fixedly connected to the left side and the right side of the top of the regulating plate (6), C-shaped steel bodies (8) are movably connected to the top of the driving blocks (7), driving motors (9) are fixedly connected to the top of the driving blocks (7), movable screws (10) are fixedly connected to the output shaft of the driving motors (9), movable screws (11) are fixedly connected to the outer sides of the movable screws (10), limiting blocks (12) are fixedly connected to the outer sides of the movable screws (11), and movable clamping plates (13) are fixedly connected to the outer sides of the limiting blocks (12).
2. The punching device for machining C-shaped steel according to claim 1, wherein: the automatic feeding device is characterized in that a fixing frame (14) is fixedly connected to the top of the feeding seat (1), a hydraulic pump (15) is fixedly connected to the top of the fixing frame (14), a hydraulic rod (16) is fixedly connected to the outlet of the hydraulic pump (15), a movable push plate (17) is fixedly connected to the bottom of the hydraulic rod (16), and a punching machine (18) is fixedly connected to the bottom of the movable push plate (17).
3. The punching device for processing C-shaped steel according to claim 2, wherein: the bottom fixedly connected with dead lever (19) of mount (14), the left and right sides of activity push pedal (17) all fixedly connected with movable block (20), the bottom fixedly connected with dead lever (19), dead lever (19) and movable block (20) swing joint.
4. A punching device for processing C-section steel according to claim 3, characterized in that: the fixed rod (19), the movable block (20) and the fixed block are four in number, the inner sides of the movable block (20) are provided with fixed through holes with the same diameter as the fixed rod (19), the four fixed through holes are respectively in sliding connection with the four fixed rods (19), and the diameter of the fixed block is larger than that of the fixed through holes.
5. The punching device for machining C-shaped steel according to claim 1, wherein: the left end fixedly connected with rolling block (21) of threaded rod (3), rolling block (21) rotate with material loading seat (1) to be connected, the left end of threaded rod (3) is run through material loading seat (1) and screw thread piece (4) in proper order and is extended to the right side of rolling block (21).
6. The punching device for machining C-shaped steel according to claim 1, wherein: the bottom ends of the two movable screws (10) are fixedly connected with rotating blocks (22), the two driving blocks (7) are respectively connected with the two rotating blocks (22) in a rotating mode, and the bottom ends of the movable screws (10) sequentially penetrate through the driving blocks (7) and the movable screw blocks (11) and extend to the tops of the rotating blocks (22).
7. The punching device for machining C-shaped steel according to claim 1, wherein: the bottom fixedly connected with movable slide block (23) of regulating plate (6), fixed spout has been seted up at the top of material loading seat (1), the quantity of movable slide block (23) and fixed spout is two, two movable slide block (23) respectively with two fixed spout sliding connection, regulating plate (6) and material loading seat (1) swing joint.
8. The punching device for machining C-shaped steel according to claim 1, wherein: fixed square holes are formed in the top of the feeding seat (1), the moving block (5) is in sliding connection with the fixed square holes, the width of the moving block (5) is equal to that of the fixed square holes, and threaded holes matched with threads on the outer sides of two movable screws (10) are formed in the inner sides of the two movable screw blocks (11) respectively.
9. The punching device for machining C-shaped steel according to claim 1, wherein: limiting long holes are formed in the inner sides of the two driving blocks (7), two limiting blocks (12) are respectively connected with the two limiting long holes in a sliding mode, the width of each limiting block (12) is equal to that of each limiting long hole, and two movable clamping plates (13) are respectively and movably connected with the two driving blocks (7).
10. The punching device for processing C-shaped steel according to claim 2, wherein: two movable clamp plates (13) are all with C shaped steel body (8) swing joint, two driving piece (7) are the L style of calligraphy, piercing press (18) are located the top of C shaped steel body (8), the screw hole with threaded rod (3) outside screw looks adaptation has been seted up to the inboard of screw thread piece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321101974.XU CN219683722U (en) | 2023-05-10 | 2023-05-10 | Punching device for C-shaped steel machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321101974.XU CN219683722U (en) | 2023-05-10 | 2023-05-10 | Punching device for C-shaped steel machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219683722U true CN219683722U (en) | 2023-09-15 |
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ID=87961496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321101974.XU Active CN219683722U (en) | 2023-05-10 | 2023-05-10 | Punching device for C-shaped steel machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219683722U (en) |
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2023
- 2023-05-10 CN CN202321101974.XU patent/CN219683722U/en active Active
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