CN211992076U - Multifunctional double-head numerical control machining equipment - Google Patents
Multifunctional double-head numerical control machining equipment Download PDFInfo
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- CN211992076U CN211992076U CN202020567304.7U CN202020567304U CN211992076U CN 211992076 U CN211992076 U CN 211992076U CN 202020567304 U CN202020567304 U CN 202020567304U CN 211992076 U CN211992076 U CN 211992076U
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Abstract
The utility model provides a multi-functional double-end numerical control processing equipment, including the processing platform, the processing groove, motor power, connecting pipe, first bevel gear can dismantle the transmission seat structure, can push up tight flexible seat structure, and the liftable shelters from observation plate structure, fixed plate, through-hole, moving motor, control box and control panel, the processing groove set up at the positive surperficial upper portion intermediate position of processing platform. The U-shaped inserting slide rail, the shielding plate, the lifting rod, the L-shaped hanging rod, the processing table and the processing tank are arranged, so that the shielding plate can be lifted to the front surface of the processing tank in the working process, the shielding work can be conveniently carried out in the working process, and the working environment can be prevented from being polluted; the supporting plate, the deep groove ball bearing, the rotating pipe, the second bevel gear and the cutter are arranged, so that the cutter can be replaced in the working process, and meanwhile, the lubricating oil filling work can be conveniently carried out on the connecting position of the second bevel gear and the first bevel gear.
Description
Technical Field
The utility model belongs to the technical field of the numerical control processing equipment, especially, relate to a multi-functional double-end numerical control processing equipment.
Background
The numerical control lathe and the turning center are high-precision and high-efficiency automatic machine tools. The multi-station tool turret or the power tool turret is equipped, so that the machine tool has wide processing technological performance, can process complex workpieces such as linear cylinders, oblique line cylinders, circular arcs and various threads, grooves, worms and the like, has various compensation functions of linear interpolation and circular arc interpolation, plays a good economic effect in the batch production of complex parts, and is designed by people for improving the working efficiency.
But the existing double-head numerical control processing equipment also has the problems that the use process is inconvenient, the cutter is inconvenient to replace, and the workpiece is inconvenient to fix.
Therefore, the invention of the multifunctional double-head numerical control machining equipment is very necessary.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a multi-functional double-end numerical control processing equipment to there is the inconvenient work that shelters from of in-process that uses in solving current double-end numerical control processing equipment, the inconvenient cutter that carries on is changed work and the inconvenient problem of carrying on the work piece and fixing. A multifunctional double-head numerical control machining device comprises a machining table, a machining groove, a power motor, a connecting pipe, a first bevel gear, a detachable transmission seat structure, a jacking telescopic seat structure, a liftable shielding observation plate structure, a fixed plate, a through hole, a movable motor, a control box and a control panel, wherein the machining groove is formed in the middle of the upper part of the front surface of the machining table; the power motor is connected to the middle position in front of the upper end of the processing table through a bolt; the upper end of the connecting pipe is connected with the outer wall of the output shaft of the power motor in a key mode; the lower end of the connecting pipe is in bolted connection with the middle position of the upper end of the first bevel gear; the detachable transmission seat structures are respectively arranged at the left side and the right side of the inner bottom end of the processing tank; the telescopic seat structures capable of being tightly jacked are respectively arranged on the outer walls of the output shafts of the mobile motors; the liftable shielding observation plate is arranged on the lower part of the front surface of the processing table in a structure; the fixed plates are respectively connected to the left side and the right side of the top end inside the processing table through bolts; the through holes are respectively arranged in the middle of the lower inner part of the fixing plate; the moving motors are respectively connected to the upper parts of the inner walls at the left side and the right side of the processing table through bolts; the control box is connected to the middle position of the left side of the upper end of the processing table through a bolt; the control panel is connected to the middle position of the front surface of the control box through a screw; the detachable transmission seat structure comprises a supporting plate, a deep groove ball bearing, a rotating pipe, a second bevel gear and a cutter, wherein the deep groove ball bearing is embedded in the middle of the inner part of the supporting plate; the rotating pipe penetrates through the inner ring of the deep groove ball bearing; the left side of the rotating pipe is connected to the middle position of the right side of the second bevel gear through a bolt; the cutter is connected to the middle position inside the right side of the rotating pipe through a bolt.
Preferably, the structure of the telescopic seat capable of being tightly jacked comprises a telescopic rod, a threaded pipe, a U-shaped plug socket and a first tightening bolt, wherein the left side of the threaded pipe is in threaded connection with the middle position inside the right side of the telescopic rod; the left bolt of the telescopic rod is connected to the middle position of the left side of the U-shaped socket; and the first tightening bolt is respectively in threaded connection with the left side of the upper end and the left side of the lower end of the U-shaped plug socket.
Preferably, the liftable shielding observation plate structure comprises a U-shaped inserting slide rail, a shielding plate, a lifting rod, an L-shaped hanging rod and a second puller bolt, wherein the shielding plate is inserted between the U-shaped inserting slide rails in a sliding manner; the lifting rod is connected to the middle position of the upper part of the front surface of the shielding plate through a bolt; the lower ends of the L-shaped hanging and connecting rods are respectively and axially connected to the middle positions of the left side and the right side of the upper end of the shielding plate; and the second tightening bolts are respectively in threaded connection with the middle position of the upper part of the front surface of the U-shaped inserting slide rail.
Preferably, the output shaft of the power motor penetrates through the middle position in front of the upper end of the processing table; the first bevel gear is arranged at the middle position inside the processing tank.
Preferably, the inner ring of the deep groove ball bearing is in interference fit with the outer wall of the rotating pipe; the rotating pipe is a stainless steel pipe with a threaded hole in the middle of the right side of the front surface.
Preferably, the lower ends of the supporting plates are respectively bolted at the middle positions of the left side and the right side of the bottom end in the processing tank; the second bevel gears are respectively arranged at the left side and the right side of the lower end of the first bevel gear; the second bevel gear and the first bevel gear are meshed.
Preferably, the U-shaped plug socket adopts a stainless steel socket with threaded holes formed in the left side of the upper end and the left side of the lower end; the telescopic rod adopts a rectangular stainless steel rod with a threaded hole formed inside.
Preferably, the right side of the threaded pipe is respectively bolted to the outer wall of the output shaft of the mobile motor; the telescopic rods respectively penetrate through the through holes in a sliding manner; the U-shaped plug sockets are respectively arranged in the middle positions of the left side and the right side of the interior of the processing tank; the telescopic rods respectively penetrate through the left side and the right side of the processing tank.
Preferably, the shielding plate is a transparent PVC plate; the second puller bolt is in contact with the shielding plate; the lifting rod is a U-shaped stainless steel rod.
Preferably, the U-shaped inserting sliding rails are respectively connected to the left side and the right side of the lower part of the front surface of the processing table through bolts; the shielding plate is arranged at the lower part of the front surface of the processing tank.
Preferably, the power motor is an alternating current motor with the model number of YE 3; the moving motor is a forward and reverse rotating stepping motor with the model number of 57BG 76.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, U type grafting slide rail, the shielding plate lifts and moves the pole, the pole is hung to the L type, the setting of processing platform and processing groove is favorable to lifting the shielding plate to the positive surface of processing groove at the in-process of work, conveniently shelters from work at the work, prevents to pollute operational environment.
2. The utility model discloses in, backup pad, deep groove ball bearing, the rotating tube, the setting of second conical gear and cutter is favorable to carrying out cutter change work at the in-process of work and conveniently carries out lubricating oil filling work to second conical gear and first conical gear's junction simultaneously.
3. The utility model discloses in, the telescopic link, the setting of U type bayonet socket and the tight bolt in first top, be favorable to adding man-hour through rotatory first tight bolt in top, then peg graft the work piece in the inside of U type bayonet socket, carry out the tight work in top to the work piece at rotatory first tight bolt in top, the convenience carries out work piece fixed work at the in-process of processing.
4. The utility model discloses in, the shielding plate, lift the pole, the L type is hung and is connect the setting of pole and processing platform, is favorable to hanging through the L type in-process of work and connect in the upper end left and right sides of processing platform, conveniently shelter from the work convenience temporarily and take and change the work piece at work.
5. The utility model discloses in, U type grafting slide rail, the shielding plate lifts the pole, the L type is hung the setting of pole and the tight bolt in second top, is favorable to fixing the shielding plate at work, prevents that the shielding plate from droing to influence and shelters from work.
6. The utility model discloses in, telescopic link, screwed pipe, the setting of U type bayonet socket and the tight bolt in first top and moving motor is favorable to controlling the operating condition of moving motor through control panel in work, conveniently drives and removes about U type bayonet socket and carries out numerical control processing work.
7. The utility model discloses in, the fixed plate, the through-hole, the telescopic link, the setting of U type bayonet socket and the tight bolt in first top is favorable to supporting the removal track of telescopic link at work, prevents to influence work piece processingquality at the skew track of in-process U type bayonet socket of processing and work piece.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the detachable transmission seat structure of the present invention.
Fig. 3 is a schematic structural view of the structure of the retractable seat capable of being pushed tightly according to the present invention.
Fig. 4 is a schematic structural view of the liftable shielding observation plate structure of the utility model.
In the figure:
1. a processing table; 2. processing a tank; 3. a power motor; 4. a connecting pipe; 5. a first bevel gear; 6. the transmission seat structure can be disassembled; 61. a support plate; 62. a deep groove ball bearing; 63. rotating the tube; 64. a second bevel gear; 65. a cutter; 7. the telescopic seat structure can be tightly propped; 71. a telescopic rod; 72. a threaded pipe; 73. a U-shaped socket; 74. a first puller bolt; 8. a liftable shielding observation plate structure; 81. a U-shaped plug-in slide rail; 82. a shielding plate; 83. lifting the rod; 84. an L-shaped hanging rod; 85. a second puller bolt; 9. a fixing plate; 10. a through hole; 11. a moving motor; 12. a control box; 13. a control panel.
Detailed Description
The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a multifunctional double-head numerical control processing device comprises a processing table 1, a processing groove 2, a power motor 3, a connecting pipe 4, a first bevel gear 5, a detachable transmission seat structure 6, a propping telescopic seat structure 7, a liftable shielding observation plate structure 8, a fixed plate 9, a through hole 10, a mobile motor 11, a control box 12 and a control panel 13, wherein the processing groove 2 is arranged at the middle position of the upper part of the front surface of the processing table 1; the power motor 3 is connected to the middle position in front of the upper end of the processing table 1 through a bolt; the upper end of the connecting pipe 4 is connected with the outer wall of the output shaft of the power motor 3 in a key mode; the lower end of the connecting pipe 4 is in bolted connection with the middle position of the upper end of the first bevel gear 5; the detachable transmission seat structures 6 are respectively arranged at the left side and the right side of the inner bottom end of the processing tank 2; the telescopic seat structures 7 capable of being tightly jacked are respectively arranged on the outer walls of the output shafts of the mobile motors 11; the liftable shielding observation plate structure 8 is arranged at the lower part of the front surface of the processing table 1; the fixed plates 9 are respectively connected to the left side and the right side of the top end inside the processing table 1 through bolts; the through holes 10 are respectively arranged at the middle position inside the lower side of the fixing plate 9; the moving motors 11 are respectively bolted on the upper parts of the inner walls at the left and right sides of the processing table 1; the control box 12 is connected to the middle position of the left side of the upper end of the processing table 1 through a bolt; the control panel 13 is in screw connection with the middle position of the front surface of the control box 12; the detachable transmission seat structure 6 comprises a supporting plate 61, a deep groove ball bearing 62, a rotating pipe 63, a second bevel gear 64 and a cutter 65, wherein the deep groove ball bearing 62 is embedded in the middle of the inner part of the supporting plate 61; the rotating pipe 63 penetrates through the inner ring of the deep groove ball bearing 62; the left side of the rotating pipe 63 is bolted at the middle position of the right side of the second bevel gear 64; the cutter 65 is connected to the middle position of the right inner part of the rotating pipe 63 through a bolt; when the double-head machining device is used, the machining table 1 is fixed at a proper position, then an external power supply is connected through an external lead, a proper cutter 65 is selected according to the working requirement, the cutter 65 is fixed inside the rotating pipe 63, the connecting pipe 4 and the first bevel gear 5 are driven to rotate through the power motor 3 during working, and then the first bevel gear 5 and the second bevel gear 64 are meshed to enable the cutters 65 arranged on the left side and the right side of the lower end of the first bevel gear 5 to rotate simultaneously to realize double-head machining.
In this embodiment, referring to fig. 3, the retractable seat structure 7 includes a retractable rod 71, a threaded pipe 72, a U-shaped socket 73 and a first tightening bolt 74, wherein the left side of the threaded pipe 72 is screwed to the middle position inside the right side of the retractable rod 71; the left bolt of the telescopic rod 71 is connected to the middle position of the left side of the U-shaped socket 73; the first tightening bolts 74 are respectively in threaded connection with the left side of the upper end and the left side of the lower end of the U-shaped plug socket 73; when the workpiece is machined, the workpiece to be machined is inserted into the middle of the U-shaped insertion seat 73, then the first tightening bolt 74 is rotated clockwise, the first tightening bolt 74 is moved towards the middle to clamp the workpiece, machining is convenient, the moving motor 11 is controlled by the control panel 13 to start working, the threaded pipe 72 is driven to start rotating, the telescopic rod 71 is made to push the U-shaped insertion seat 73 and the workpiece to move towards the middle, the workpiece is made to contact with the cutter 65 to be machined, and numerical control machining is completed.
In this embodiment, referring to fig. 4, the liftable shielding observation plate structure 8 includes a U-shaped insertion slide rail 81, a shielding plate 82, a lifting rod 83, an L-shaped hanging rod 84 and a second tightening bolt 85, wherein the shielding plate 82 is slidably inserted between the U-shaped insertion slide rails 81; the lifting rod 83 is connected to the middle position of the upper part of the front surface of the shielding plate 82 through a bolt; the lower ends of the L-shaped hanging rods 84 are respectively and axially connected to the middle positions of the left side and the right side of the upper end of the shielding plate 82; the second puller bolts 85 are respectively in threaded connection with the middle position of the upper part of the front surface of the U-shaped inserting slide rail 81; in the process of numerical control machining, the second puller bolt 85 is loosened, the lifting rod 83 is grasped, the shielding plate 82 is lifted and moved upwards, the shielding plate 82 is moved to the front surface of the machining groove 2, the L-shaped hanging rod 84 is rotated, the L-shaped hanging rod 84 is hung on the left side and the right side of the upper end of the machining table 1, shielding work is conveniently carried out in the machining process, and the working environment is prevented from being polluted.
In the present embodiment, specifically, the output shaft of the power motor 3 penetrates through the middle position in front of the upper end of the processing table 1; the first bevel gear 5 is disposed at an intermediate position inside the processing tank 2.
In this embodiment, specifically, the inner ring of the deep groove ball bearing 62 is in interference fit with the outer wall of the rotating pipe 63; the rotating pipe 63 is a stainless steel pipe with a threaded hole in the middle of the right side of the front surface.
In the present embodiment, specifically, the lower ends of the supporting plates 61 are respectively bolted to the middle positions of the left and right sides of the bottom end inside the processing tank 2; the second bevel gears 64 are respectively arranged at the left side and the right side of the lower end of the first bevel gear 5; the second bevel gear 64 is meshed with the first bevel gear 5.
In this embodiment, specifically, the U-shaped socket 73 is a stainless steel socket having threaded holes formed in the left side of the upper end and the left side of the lower end; the telescopic rod 71 is a rectangular stainless steel rod with a threaded hole formed therein.
In this embodiment, specifically, the right side of the threaded pipe 72 is respectively bolted to the outer wall of the output shaft of the moving motor 11; the telescopic rods 71 respectively penetrate through the through holes 10 in a sliding manner; the U-shaped plug sockets 73 are respectively arranged at the middle positions of the left side and the right side in the processing tank 2; the expansion rods 71 respectively penetrate through the left side and the right side of the processing tank 2.
In this embodiment, specifically, the shielding plate 82 is a transparent PVC plate; the second tightening bolt 85 is arranged in contact with the shielding plate 82; the lifting rod 83 is a U-shaped stainless steel rod.
In this embodiment, specifically, the U-shaped insertion slide rails 81 are respectively bolted to the left and right sides of the lower portion of the front surface of the processing table 1; the shielding plate 82 is disposed below the front surface of the processing tank 2.
In this embodiment, specifically, the power motor 3 specifically adopts an alternating current motor with a model number of YE 3; the moving motor 11 specifically adopts a forward and reverse rotation stepping motor with the model number of 57BG 76.
Principle of operation
In the utility model, when in use, the processing platform 1 is fixed at a proper position, then an external wire is used to connect an external power supply, a proper cutter 65 is selected according to the working requirement, the cutter 65 is fixed inside the rotating tube 63, when in use, the power motor 3 drives the connecting tube 4 and the first bevel gear 5 to start rotating, then the first bevel gear 5 and the second bevel gear 64 are meshed to enable the cutters 65 arranged at the left and right sides of the lower end of the first bevel gear 5 to simultaneously rotate to realize double-headed processing, when in processing the workpiece, the workpiece to be processed is inserted at the middle position inside the U-shaped socket 73, then the first puller bolt 74 is clockwise rotated to enable the first puller bolt 74 to move towards the middle to clamp the workpiece, the processing is convenient, when the control panel 13 controls the moving motor 11 to start working, the threaded tube 72 is driven to start rotating, the telescopic rod 71 pushes the U-shaped plug socket 73 and the workpiece to move towards the middle, the workpiece is made to contact with the cutter 65 for machining, numerical control machining is completed, the second jacking bolt 85 is loosened in the process of numerical control machining, the lifting rod 83 is grasped, the shielding plate 82 is lifted and moved upwards, the shielding plate 82 is moved to the front surface of the machining groove 2, the L-shaped hanging rod 84 is rotated, the L-shaped hanging rod 84 is hung at the left side and the right side of the upper end of the machining table 1, shielding work is conveniently conducted in the process of machining, and the working environment is prevented from being polluted.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.
Claims (10)
1. The multifunctional double-head numerical control machining equipment is characterized by comprising a machining table (1), a machining groove (2), a power motor (3), a connecting pipe (4), a first bevel gear (5), a detachable transmission seat structure (6), a jacking telescopic seat structure (7), a liftable shielding observation plate structure (8), a fixed plate (9), a through hole (10), a moving motor (11), a control box (12) and a control panel (13), wherein the machining groove (2) is arranged in the middle of the upper part of the front surface of the machining table (1); the power motor (3) is connected to the middle position in front of the upper end of the processing table (1) through a bolt; the upper end of the connecting pipe (4) is connected with the outer wall of the output shaft of the power motor (3) in a key way; the lower end of the connecting pipe (4) is in bolted connection with the middle position of the upper end of the first bevel gear (5); the detachable transmission seat structures (6) are respectively arranged at the left side and the right side of the inner bottom end of the processing tank (2); the telescopic seat structures (7) capable of being tightly jacked are respectively arranged on the outer walls of the output shafts of the mobile motors (11); the liftable shielding observation plate structure (8) is arranged at the lower part of the front surface of the processing table (1); the fixed plates (9) are respectively connected to the left side and the right side of the top end inside the processing table (1) through bolts; the through holes (10) are respectively arranged at the middle position inside the lower side of the fixing plate (9); the moving motors (11) are respectively connected to the upper parts of the inner walls at the left side and the right side of the processing table (1) through bolts; the control box (12) is connected to the middle position of the left side of the upper end of the processing table (1) through a bolt; the control panel (13) is connected to the middle position of the front surface of the control box (12) through a screw; the detachable transmission seat structure (6) comprises a supporting plate (61), a deep groove ball bearing (62), a rotating pipe (63), a second bevel gear (64) and a cutter (65), wherein the deep groove ball bearing (62) is embedded in the middle of the inner part of the supporting plate (61); the rotating pipe (63) penetrates through the inner ring of the deep groove ball bearing (62); the left side of the rotating pipe (63) is connected to the middle position of the right side of the second bevel gear (64) through a bolt; the cutter (65) is connected to the middle position inside the right side of the rotating pipe (63) through a bolt.
2. The multifunctional double-headed numerical control machining equipment as recited in claim 1, wherein the jacking telescopic seat structure (7) comprises a telescopic rod (71), a threaded pipe (72), a U-shaped socket (73) and a first jacking bolt (74), wherein the left side of the threaded pipe (72) is in threaded connection with the middle position inside the right side of the telescopic rod (71); the left bolt of the telescopic rod (71) is connected to the middle position of the left side of the U-shaped socket (73); the first tightening bolt (74) is respectively in threaded connection with the left side of the upper end and the left side of the lower end of the U-shaped plug socket (73).
3. The multifunctional double-headed numerical control machining equipment according to claim 1, wherein the liftable shielding observation plate structure (8) comprises U-shaped inserting slide rails (81), a shielding plate (82), a lifting rod (83), an L-shaped hanging rod (84) and a second tightening bolt (85), and the shielding plate (82) is slidably inserted between the U-shaped inserting slide rails (81); the lifting rod (83) is connected to the middle position of the upper part of the front surface of the shielding plate (82) through a bolt; the lower ends of the L-shaped hanging and connecting rods (84) are respectively and axially connected to the middle positions of the left side and the right side of the upper end of the shielding plate (82); and the second tightening bolts (85) are respectively in threaded connection with the middle position of the upper part of the front surface of the U-shaped inserting slide rail (81).
4. The multifunctional double-headed numerical control machining device as claimed in claim 2, characterized in that the output shaft of the power motor (3) penetrates through the middle position in front of the upper end of the machining table (1); the first bevel gear (5) is arranged in the middle position inside the processing tank (2).
5. The multifunctional double-headed numerical control machining device as recited in claim 1, characterized in that the inner ring of the deep groove ball bearing (62) is in interference fit with the outer wall of the rotating pipe (63); the rotating pipe (63) is a stainless steel pipe with a threaded hole in the middle of the right side of the front surface.
6. The multifunctional double-headed numerical control machining device according to claim 1, wherein the lower ends of the support plates (61) are respectively bolted to the middle positions of the left and right sides of the bottom end inside the machining tank (2); the second bevel gears (64) are respectively arranged at the left side and the right side of the lower end of the first bevel gear (5); the second bevel gear (64) and the first bevel gear (5) are arranged in a meshed manner.
7. The multifunctional double-headed numerical control machining device according to claim 2, wherein the U-shaped plug socket (73) is a stainless steel socket with threaded holes formed in the left side of the upper end and the left side of the lower end; the telescopic rod (71) is a rectangular stainless steel rod with a threaded hole formed inside.
8. The multifunctional double-headed numerical control machining device according to claim 2, wherein the right sides of the threaded pipes (72) are respectively bolted to the outer wall of the output shaft of the moving motor (11); the telescopic rods (71) respectively penetrate through the through holes (10) in a sliding manner; the U-shaped plug sockets (73) are respectively arranged at the middle positions of the left side and the right side in the processing tank (2); the telescopic rods (71) respectively penetrate through the left side and the right side of the processing tank (2).
9. A multifunctional double-headed numerical control machining device according to claim 3, characterized in that the shielding plate (82) is a transparent PVC plate; the second tightening bolt (85) is in contact with the shielding plate (82); the lifting rod (83) is a U-shaped stainless steel rod.
10. The multifunctional double-headed numerical control machining device according to claim 3, wherein the U-shaped plugging slide rails (81) are respectively bolted on the left and right sides of the lower part of the front surface of the machining table (1); the shielding plate (82) is arranged at the lower part of the front surface of the processing tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020567304.7U CN211992076U (en) | 2020-04-16 | 2020-04-16 | Multifunctional double-head numerical control machining equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020567304.7U CN211992076U (en) | 2020-04-16 | 2020-04-16 | Multifunctional double-head numerical control machining equipment |
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| CN211992076U true CN211992076U (en) | 2020-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571614A (en) * | 2020-12-29 | 2021-03-30 | 山东双端数字科技有限公司 | Segment box girder prefabricating construction structure |
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2020
- 2020-04-16 CN CN202020567304.7U patent/CN211992076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571614A (en) * | 2020-12-29 | 2021-03-30 | 山东双端数字科技有限公司 | Segment box girder prefabricating construction structure |
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