CN211539071U - High-adaptability hydraulic bending machine - Google Patents
High-adaptability hydraulic bending machine Download PDFInfo
- Publication number
- CN211539071U CN211539071U CN202020061112.9U CN202020061112U CN211539071U CN 211539071 U CN211539071 U CN 211539071U CN 202020061112 U CN202020061112 U CN 202020061112U CN 211539071 U CN211539071 U CN 211539071U
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- workbench
- lower die
- limiting
- bending
- positioning
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- 238000005452 bending Methods 0.000 title claims abstract description 72
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model relates to a high-adaptability hydraulic bending machine, which comprises a first workbench, a second workbench and a frame, wherein the upper end surface of the first workbench is level with the upper end surface of the second workbench; a hydraulic cylinder is arranged on the rack, a piston rod of the hydraulic cylinder is vertically downwards connected with a bending piece for bending the plate, a lower die is correspondingly arranged below the bending piece, and the lower die is positioned on a first workbench; a limiting piece used for limiting the position of the plate is arranged on the first workbench, and a plurality of positioning screws are arranged on the second workbench in a sliding manner; all be provided with the setting element that is used for injecing the position of positioning screw on the second workstation on a plurality of positioning screw, all be connected with locating plate and mounting on a plurality of positioning screw, the locating plate can be rotated in the horizontal direction and be used for injecing the panel position, and the mounting can be used for injecing the position after the locating plate that corresponds rotates in the horizontal direction. The utility model discloses have the effect that improves the precision of hydraulic bending machine to panel processing.
Description
Technical Field
The utility model belongs to the technical field of the technique of bender and specifically relates to a high adaptability hydraulic bending machine is related to.
Background
The bending machine is a machine capable of bending a thin plate, is important equipment for bending and forming workpieces in the metal plate industry, and is used for manufacturing steel plates into parts in various shapes according to process requirements. For a hydraulic bending machine, different positioning adjustments are performed on plates with different requirements during bending, and the precision of plate processing is guaranteed to be very important.
The existing Chinese patent with the publication number of CN208613414U discloses a hydraulic steel plate bending machine, which comprises a frame, a workbench arranged on the frame, a bending mechanism arranged on the upper part of the frame, a limiting mechanism arranged inside the frame and corresponding to the workbench, and a lower die arranged on the inner side of the workbench and positioned right below the bending mechanism, wherein the limiting mechanism is a mechanism for driving a screw rod through a motor and further pushing a stop post to limit. Be equipped with the positioning mechanism who advances line location to the work piece on the workstation, positioning mechanism is provided with two, two positioning mechanism are all including dismantling the connecting rod of fixed connection on the workstation and rotating the separation blade that the level that connects on the connecting rod set up, the separation blade is rectangular shape, the vertical setting of connecting rod, the arc wall of evagination is seted up to the position department that the workstation corresponds the connecting plate, the fixed fixture block that is provided with of position department that corresponds the arc wall in connecting rod bottom, the fixture block slides and connects on the arc wall, the lower part threaded connection of connecting rod has the fastening nut who is used for. The hydraulic steel plate bending machine can realize accurate positioning and bending of polygonal steel plates.
The above prior art solutions have the following drawbacks: when the hydraulic steel plate bending machine bends round or arc-shaped steel plates, because the two positioning mechanisms are arranged at the two ends of the workbench and slide on the arc-shaped grooves of the outer protrusions, if the round or arc-shaped plates are small, the two positioning mechanisms cannot position the round or arc-shaped plates at the same time, so that the round or arc-shaped plates can only be positioned through the limiting mechanism and one positioning mechanism. But because stop gear only carries on spacingly through the bumping post butt, positioning mechanism is used for the position of location panel to be the rectangular shape separation blade that the level set up, bumping post and rectangular shape separation blade can't carry out better fixed to circular or arc panel, circular or arc panel edge is circular-arc circular-shaped circular or arc panel's circular arc limit can produce when only fixing a position through stop gear and a positioning mechanism and slide, can not confirm its position completely, still there is the possibility of bending deviation when bending through the bender, the precision that leads to panel processing is not high.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a high adaptability hydraulic bending machine, it has the advantage that improves the precision that hydraulic bending machine processed to panel.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a high adaptability hydraulic bending machine which characterized in that: the device comprises a first workbench, a second workbench and a rack, wherein the second workbench is positioned on one side of the first workbench, the upper end surface of the first workbench is flush with the upper end surface of the second workbench, and the bottom end of the second workbench is provided with a universal wheel; a hydraulic cylinder is arranged on the rack, a piston rod of the hydraulic cylinder faces downwards vertically and is connected with a bending piece for bending a plate, a lower die is correspondingly arranged below the bending piece, and the lower die is positioned on a first workbench; a limiting part is arranged on the first workbench, the limiting part is positioned on one side of the lower die, which is far away from the second workbench, the limiting part comprises a limiting block, and the top end of the limiting block is higher than that of the lower die;
a sliding groove is formed in the second workbench along the length direction of the lower die, and the length of the sliding groove is equal to that of the second workbench along the length direction of the lower die; a plurality of positioning screws are arranged in the sliding groove in a sliding mode, each positioning screw is fixedly connected with a positioning ring, a vertical positioning screw is connected to each positioning ring in a threaded mode, and the bottom end of each positioning screw abuts against the top end of the second workbench to limit the position of each positioning screw; each locating screw is provided with a locating plate in a penetrating manner, each locating plate is rotatably connected with the corresponding locating screw, a fixed plate fixedly connected with the locating screw is arranged below each locating plate, a fixing nut is in threaded connection with the upper portion of each locating plate, and one side of each locating plate can be abutted against the edge of a plate.
Through adopting the above-mentioned technical scheme, can realize carrying out more accurate location to circular or arc panel, use circular panel as an example, the stopper can carry on spacingly to the circular panel, can realize that positioning screw slides on the spout after spout and a plurality of positioning screw set up, according to the difference of the diameter size of different circular panels, can slide positioning screw in the spout, adjust positioning screw and make its both ends that distribute in circular panel diameter, the diameter of circular panel can be pressed from both sides to the locating plate on the positioning screw, circular panel alright fix a position more accurately under stopper and a plurality of positioning screw's location. When the area of the circular plate is large, the distance between the positioning screw rod and the lower die can be adjusted by pulling the second workbench, so that the bending requirements of the circular plates with different sizes are met.
The present invention may be further configured in a preferred embodiment as: the bending piece comprises a connecting block and a bending block, and the end face of the bottom end of the bending block is in an arc shape protruding downwards.
By adopting the technical scheme, the end face of the bottom end of the bending block is arc-shaped, so that the pressure on the plate when the bending piece descends to bend the plate can be reduced, and the part of the plate to be bent is prevented from being broken.
The present invention may be further configured in a preferred embodiment as: the top end of the lower die is provided with a groove corresponding to the bending block, and the groove is V-shaped.
By adopting the technical scheme, the groove formed in the top end of the lower die is V-shaped, so that a certain guiding effect can be achieved when the plate is bent, and the plate can be conveniently bent.
The present invention may be further configured in a preferred embodiment as: the lower die is provided with horizontal tables at two ends in the direction from the first workbench to the second workbench, and the top ends of the horizontal tables are flush with the top ends of the grooves.
Through adopting above-mentioned technical scheme, the setting of horizontal stand can play certain supporting role to the panel of treating bending.
The present invention may be further configured in a preferred embodiment as: the locating part still includes threaded rod, gag lever post and motor, the motor shaft and the threaded rod of motor are connected, stopper and threaded rod threaded connection, stopper and gag lever post sliding connection, the gag lever post is used for injecing the stopper along the horizontal direction translation.
Through adopting above-mentioned technical scheme, locating part and connecting plate set up the back, can make the stopper follow the horizontal direction translation, and then the distance between adjustment connecting plate and the bed die to the needs that the different panel was bent are adapted to.
The present invention may be further configured in a preferred embodiment as: the two limiting parts are respectively positioned at two sides of the lower die in the length direction; and a connecting plate is connected between the two limiting blocks, and the top end of the connecting plate is higher than that of the lower die.
Through adopting above-mentioned technical scheme, the setting of two locating parts can make the connecting plate not take place the skew when removing in the horizontal direction, makes the spacing effect of connecting plate more accurate.
The present invention may be further configured in a preferred embodiment as: be provided with first screw on the connecting block, the connecting block passes through first screw fixed connection with the piece of bending.
Through adopting above-mentioned technical scheme, fix the connecting block and the piece of bending through first screw, can realize the replacement to the piece of bending.
The present invention may be further configured in a preferred embodiment as: and a second screw is arranged on the lower die, and the lower die is fixedly connected with the first workbench through the second screw.
Through adopting above-mentioned technical scheme, fix bed die and first workstation through the second screw, can realize the replacement to the bed die.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through the arrangement of the first workbench, the second workbench, the bending piece, the lower die, the limiting block and the positioning screw rod, the polygonal plate and the circular plate can be accurately positioned and bent;
2. through the arrangement of the first screw and the second screw, the bending block and the lower die can be replaced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a high-adaptability hydraulic bending machine shown in an embodiment;
fig. 2 is a partial structural schematic diagram of a high-adaptability hydraulic bending machine shown in an embodiment;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is a schematic structural diagram illustrating a connection relationship among a positioning screw, a positioning plate, a fixing member and a positioning member according to an embodiment;
fig. 5 is an exploded view of a stopper according to an embodiment.
In the figure, 1, a first worktable; 11. a lower die; 111. a groove; 112. a horizontal table; 12. a bearing plate; 13. a second screw; 2. a frame; 21. a hydraulic cylinder; 22. bending a piece; 221. connecting blocks; 222. bending the block; 223. a first screw; 3. a second table; 31. a universal wheel; 32. positioning a screw rod; 33. a chute; 34. positioning a plate; 35. a fixing member; 351. fixing the disc; 352. fixing a nut; 36. a positioning member; 361. a positioning ring; 362. a set screw; 4. a limiting member; 41. a threaded rod; 42. a limiting rod; 43. a limiting block; 44. a motor; 45. a first bearing; 46. a first connection block; 47. a second connecting block; 48. a second bearing; 49. a connecting plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a high adaptability hydraulic bending machine, including first workstation 1, second workstation 3 and frame 2, second workstation 3 is located one side of first workstation 1, and 1 up end of first workstation is flat mutually with the up end of second workstation 3, and second workstation 3 is the wood system workstation, and the bottom of second workstation 3 is provided with four universal wheels 31. The frame 2 is provided with a hydraulic cylinder 21, a piston rod of the hydraulic cylinder 21 is vertically connected with a bending piece 22 used for bending a plate downwards, a lower die 11 is correspondingly arranged below the bending piece 22, the lower die 11 is located on the first workbench 1, concretely, a receiving plate 12 is arranged on the first workbench 1, the lower die 11 is located on the receiving plate 12 and is fixedly connected with the receiving plate 12, a second screw 13 is arranged on the receiving plate 12, the number of the second screws 13 is four, and the receiving plate 12 is fixedly connected with the first workbench 1 through the second screws 13. Two limiting parts 4 for limiting the position of the plate are arranged on the first workbench 1.
Referring to fig. 1 and 3, the bending member 22 includes a connecting block 221 and a bending block 222, the connecting block 221 is provided with three first screws 223, the connecting block 221 and the bending block 222 are fixedly connected by the first screws 223, and an end surface of a bottom end of the bending block 222 is in an arc shape protruding downward. The top end of the lower die 11 is provided with a groove 111 corresponding to the bending block 222, the groove 111 is V-shaped, and with reference to fig. 2, the two ends of the lower die 11 along the direction from the first workbench 1 to the second workbench 3 are fixedly connected with a horizontal table 112, and the top end of the horizontal table 112 is flush with the top end of the groove 111.
Referring to fig. 2 and 5, taking one of the limiting members 4 as an example, the limiting member 4 includes a threaded rod 41, a limiting rod 42, a limiting block 43, and a motor 44, a motor shaft of the motor 44 is connected to the threaded rod 41, specifically, the motor shaft of the motor 44 is fixedly connected to the threaded rod 41 through a coupler, a first bearing 45 is sleeved on the threaded rod 41, an inner ring of the first bearing 45 is fixedly connected to the threaded rod 41, and an outer ring of the first bearing 45 is fixedly connected to a first connecting block 46. One end of the threaded rod 41 far away from the motor 44 is connected with a second connecting block 47, specifically, one end of the threaded rod 41 far away from the motor 44 is connected with a second bearing 48, an inner ring of the second bearing 48 is fixedly connected with the threaded rod 41, and an outer ring of the second bearing 48 is fixedly connected with the second connecting block 47.
Referring to fig. 2 and 5, the stopper 43 is threadedly coupled to the threaded rod 41, and the threaded rod 41 penetrates the stopper 43. Stopper 43 and gag lever post 42 sliding connection, gag lever post 42 is used for injecing stopper 43 along the horizontal direction translation, and is concrete, gag lever post 42 is provided with two, two gag lever posts 42 are located the both sides of threaded rod 41 respectively, use one of them gag lever post 42 as an example, gag lever post 42 runs through stopper 43 along the direction of motor 44 to threaded rod 41, the one end and the first connecting block 46 fixed connection of gag lever post 42, the other end and the second connecting block 47 fixed connection, stopper 43 can make a round trip to translate in the direction of motor 44 to threaded rod 41 under the restriction of gag lever post 42.
Referring to fig. 2 and 5, two limiting members 4 are located on one side of the lower mold 11 away from the second workbench 3, the two limiting members 4 are located on two sides of the length direction of the lower mold 11 respectively, a connecting plate 49 is connected between the two limiting members 43, the connecting plate 49 is parallel to the lower mold 11, the end face of the connecting plate 49 close to the lower mold 11 is a plane, the bottom ends of the two limiting members 43 and the connecting plate 49 are lower than the top end of the lower mold 11, and the top ends of the two limiting members 43 and the connecting plate 49 are higher than the top end of the lower mold 11. Two motors 44 are the servo motor 44 of the same model, and through two synchronous startings of PLC control servo motor 44, two synchronous startings of servo motor 44 back, rotational speed and direction of rotation are all the same, and two synchronous operations of servo motor 44 through the PLC control that has the synchronizing function are prior art, and no longer describe here.
Referring to fig. 2 and 4, the second table 3 is slidably provided with two vertical positioning screws 32, taking one of the two vertical positioning screws 32 as an example, specifically, a sliding groove 33 is formed in the second table 3 along the length direction of the lower mold 11, the length of the sliding groove 33 is equal to the length of the second table 3 along the length direction of the lower mold 11, and the sliding groove 33 is in an inverted T shape; the lower end of the positioning screw rod 32 is correspondingly clamped in the sliding groove 33, so that the positioning screw rod 32 can only move in the sliding groove 33.
Referring to fig. 2 and 4, one end of the positioning screw 32, which is far away from the sliding slot 33, is connected with a positioning plate 34 and a fixing member 35, specifically, the fixing member 35 includes a fixed disk 351 and a fixing nut 352, the fixed disk 351 is fixedly connected with the positioning screw 32, the fixing nut 352 is in threaded connection with the positioning screw 32, the positioning plate 34 is inserted into the positioning screw 32 and is located between the fixed disk 351 and the fixing nut 352, and the positioning plate 34 can rotate in the horizontal direction relative to the positioning screw 32. The bottom end of positioning plate 34 abuts against fixed disk 351, and after positioning plate 34 rotates in the horizontal direction, fixing nut 352 is rotated to fixing nut 352 to abut against positioning plate 34 to limit the position of positioning plate 34 after rotating in the horizontal direction.
Referring to fig. 2 and 4, the two positioning screws 32 are each provided with a positioning member 36 for defining the position of the positioning screw 32 on the second working platform 3, specifically, the positioning member 36 includes a positioning ring 361 and two positioning screws 362, the positioning ring 361 is fixedly connected with the positioning screws 362, the positioning ring 361 is located between the fixed disk 351 and the sliding chute 33, the two positioning screws 362 are both in threaded connection with the positioning ring 361, and when the positioning screws 362 are tightened, the bottom ends of the positioning screws 362 are tightly abutted to the top ends of the second working platform 3 to limit the position of the positioning screws 32.
The implementation principle of the above embodiment is as follows:
in the initial state, the bending block 222 is positioned above the lower die 11, and the positioning screw 32 is fixed to the second table 3 by a positioning screw 362.
When the polygonal plate needs to be bent, firstly, the part of the polygonal plate needing to be bent is placed on the lower die 11, the two motors 44 are controlled to rotate simultaneously, the motor shafts of the motors 44 drive the threaded rods 41 to rotate, and when the threaded rods 41 rotate, the limiting blocks 43 translate along the threaded rods 41 under the limitation of the limiting rods 42 so as to drive the connecting plates 49 to translate until one end, close to the lower die 11, of each connecting plate 49 abuts against one side, needing to be bent, of the polygonal plate, so that the position of the polygonal plate is limited. Then, the position of the second table 3 can be moved by the universal wheel 31, and the position of the positioning screw 32 can be adjusted by loosening one positioning screw 362 to make the positioning screw 32 slide on the sliding slot 33, the positioning screw 32 is adjusted to the position where the positioning plate 34 is located at one side of the non-bent edge of the polygonal plate, and then the positioning screw 362 is tightened, and finally, the fixing nut 352 is tightened after loosening the fixing nut 352 and rotating the positioning plate 34 to make one end of the positioning plate 34 abut against the non-bent edge of the polygonal plate. At this time, the hydraulic cylinder 21 is started, and the piston rod of the hydraulic cylinder 21 descends to drive the bending block 222 to move vertically and downwards to bend the polygonal plate.
When the circular plate needs to be bent, the part of the circular plate needing to be bent is firstly placed on the lower die 11, the two motors 44 are controlled to rotate simultaneously, the motor shafts of the motors 44 drive the threaded rods 41 to rotate, and the limiting blocks 43 translate along the threaded rods 41 under the limitation of the limiting rods 42 when the threaded rods 41 rotate so as to drive the connecting plate 49 to translate until one end, close to the lower die 11, of the connecting plate 49 abuts against one end, needing to be bent, of the circular plate, so that the position of the circular plate is limited. Then, the position of the second table 3 can be moved by the universal wheel 31, and the two positioning screws 32 can be slid on the sliding grooves 33 by loosening the two positioning screws 362, so as to adjust the position of the positioning screws 32, adjust the two positioning screws 32 until the two positioning plates 34 are respectively positioned at two sides of the diameter of the circular plate, then tighten the positioning screws 362, finally loosen the fixing nut 352 to rotate the positioning plate 34 so that one end of the positioning plate 34 abuts against the non-bent edge of the circular plate, and at this moment, the distance between the two positioning plates 34 is the diameter of the circular plate, and tighten the fixing nut 352. At this time, the hydraulic cylinder 21 is started, and the piston rod of the hydraulic cylinder 21 descends to drive the bending block 222 to move vertically and downwards to bend the circular plate.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a high adaptability hydraulic bending machine which characterized in that: the device comprises a first workbench (1), a second workbench (3) and a rack (2), wherein the second workbench (3) is positioned on one side of the first workbench (1), the upper end surface of the first workbench (1) is flush with the upper end surface of the second workbench (3), and the bottom end of the second workbench (3) is provided with a universal wheel (31); a hydraulic cylinder (21) is arranged on the rack (2), a piston rod of the hydraulic cylinder (21) faces downwards vertically and is connected with a bending piece (22) for bending a plate, a lower die (11) is correspondingly arranged below the bending piece (22), and the lower die (11) is positioned on the first workbench (1); a limiting part (4) is arranged on the first workbench (1), the limiting part (4) is positioned on one side, away from the second workbench (3), of the lower die (11), the limiting part (4) comprises a limiting block (43), and the top end of the limiting block (43) is higher than that of the lower die (11);
a sliding groove (33) is formed in the second workbench (3) along the length direction of the lower die (11), and the length of the sliding groove (33) is equal to that of the second workbench (3) along the length direction of the lower die (11); a plurality of positioning screws (32) are arranged in the sliding groove (33) in a sliding manner, each positioning screw (32) is fixedly connected with a positioning ring (361), each positioning ring (361) is in threaded connection with a vertical positioning screw (362), and the bottom end of each positioning screw (362) abuts against the top end of the corresponding second workbench (3) to limit the position of each positioning screw (32); each all wear to be equipped with locating plate (34) on positioning screw (32), each locating plate (34) all rotates with corresponding positioning screw (32) to be connected, each the below of locating plate (34) all is provided with fixed disk (351) with positioning screw (32) fixed connection, each equal threaded connection in top of locating plate (34) has fixation nut (352), each one side of locating plate (34) all can offset with the border of panel.
2. The high-adaptability hydraulic bending machine according to claim 1, wherein: the bending piece (22) comprises a connecting block (221) and a bending block (222), and the end face of the bottom end of the bending block (222) is in an arc shape protruding downwards.
3. The high-adaptability hydraulic bending machine according to claim 2, wherein: the top end of the lower die (11) is provided with a groove (111) corresponding to the bending block (222), and the groove (111) is V-shaped.
4. The high-adaptability hydraulic bending machine according to claim 3, wherein: the two ends of the lower die (11) in the direction from the first workbench (1) to the second workbench (3) are respectively provided with a horizontal table (112), and the top end of the horizontal table (112) is flush with the top end of the groove (111).
5. The high-adaptability hydraulic bending machine according to claim 1, wherein: the limiting part (4) further comprises a threaded rod (41), a limiting rod (42) and a motor (44), a motor shaft of the motor (44) is connected with the threaded rod (41), the limiting block (43) is in threaded connection with the threaded rod (41), the limiting block (43) is in sliding connection with the limiting rod (42), and the limiting rod (42) is used for limiting the limiting block (43) to move horizontally.
6. The high-adaptability hydraulic bending machine according to claim 5, wherein: the number of the limiting pieces (4) is two, and the two limiting pieces (4) are respectively positioned on two sides of the length direction of the lower die (11); a connecting plate is connected between the two limiting blocks (43), and the top end of the connecting plate is higher than the top end of the lower die (11).
7. The high-adaptability hydraulic bending machine according to claim 2, wherein: the connecting block (221) is provided with a first screw (223), and the connecting block (221) and the bending block (222) are fixedly connected through the first screw (223).
8. The high-adaptability hydraulic bending machine according to claim 1, wherein: the lower die (11) is provided with a second screw (13), and the lower die (11) is fixedly connected with the first workbench (1) through the second screw (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020061112.9U CN211539071U (en) | 2020-01-11 | 2020-01-11 | High-adaptability hydraulic bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020061112.9U CN211539071U (en) | 2020-01-11 | 2020-01-11 | High-adaptability hydraulic bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211539071U true CN211539071U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020061112.9U Expired - Fee Related CN211539071U (en) | 2020-01-11 | 2020-01-11 | High-adaptability hydraulic bending machine |
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| Country | Link |
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| CN (1) | CN211539071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116116961A (en) * | 2023-04-18 | 2023-05-16 | 无锡市重本异型钢管有限公司 | Processing equipment for building fireproof curtain wall connecting piece |
-
2020
- 2020-01-11 CN CN202020061112.9U patent/CN211539071U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116116961A (en) * | 2023-04-18 | 2023-05-16 | 无锡市重本异型钢管有限公司 | Processing equipment for building fireproof curtain wall connecting piece |
| CN116116961B (en) * | 2023-04-18 | 2023-06-23 | 无锡市重本异型钢管有限公司 | Processing equipment for building fireproof curtain wall connecting piece |
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Granted publication date: 20200922 |