CN115055556B - Material mechanism is rolled over to five metals material trough of belt wheel - Google Patents
Material mechanism is rolled over to five metals material trough of belt wheel Download PDFInfo
- Publication number
- CN115055556B CN115055556B CN202210779968.3A CN202210779968A CN115055556B CN 115055556 B CN115055556 B CN 115055556B CN 202210779968 A CN202210779968 A CN 202210779968A CN 115055556 B CN115055556 B CN 115055556B
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- Prior art keywords
- buffer block
- plate
- servo motor
- sliding
- hardware
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- 239000000463 material Substances 0.000 title claims abstract description 96
- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 title claims description 5
- 229910052751 metal Inorganic materials 0.000 title claims description 5
- 150000002739 metals Chemical class 0.000 title claims description 3
- 238000003825 pressing Methods 0.000 claims abstract description 44
- 239000000872 buffer Substances 0.000 claims description 63
- 238000010030 laminating Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 22
- 239000007769 metal material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009414 blockwork Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/16—Folding; Pleating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/105—Manipulators, i.e. mechanical arms carrying a gripper element having several degrees of freedom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a hardware material belt groove wheel material folding mechanism, which relates to the technical field of medical equipment and comprises a bottom plate, a servo motor and a sliding plate, wherein a fixed panel is arranged on the outer side of the front part of the bottom plate, the servo motor is arranged at the rear section of the top of the fixed panel, the output end of the servo motor is connected with an eccentric sheave, and a lifting plate is connected with the outer side of the front part of the eccentric sheave. According to the invention, the hardware material belt is bent by utilizing the displacement force generated when the servo motor rotates, and the upper material pressing cylinder and the lower material pressing cylinder only act on the upper material bending clamp and the lower material pressing cylinder to fix the hardware material belt.
Description
Technical Field
The invention relates to the technical field of processing of hardware material belts, in particular to a hardware material belt groove wheel folding mechanism.
Background
The metal material belt is made of alloy material, and the hardness of the metal material is high, so that the metal material belt is bent by a material folding mechanism in the production process, and the metal material belt is formed into a specified shape.
The power of most of the material folding mechanisms adopts compressed air to drive the air cylinders to reciprocate up and down so as to drive the upper material folding plate and the lower material folding plate to move to realize the material folding of the hardware material belt, the use of the air cylinders as the power of the material folding mechanisms can be completely realized in theory, but in practical application, the problems that the compressed air cannot be kept at a stable numerical value in the use process of the mechanism, the phenomenon of inconsistent speed of the air cylinders occurs in the operation process, the air cylinders reciprocate at high frequency for a long time, the air cylinders heat seriously, the use time of the air cylinder pistons is greatly reduced, the air cylinders are frequently replaced, the air cylinders are adopted as the power, the electromagnetic valve reciprocate frequently, the service life is shortened, and the air cylinders are adopted as the power, so that buffering and hard limiting devices are required to be added to limit the air cylinders, and the noise of equipment is quite large.
Disclosure of Invention
The invention aims to provide a hardware material belt sheave folding mechanism for solving the problems in the background technology.
The technical scheme includes that the hardware material belt groove wheel material folding mechanism comprises a bottom plate, a servo motor and a sliding plate, wherein a fixed panel is arranged on the outer side of the front portion of the bottom plate, the servo motor is arranged on the rear section of the top of the fixed panel, the output end of the servo motor is connected with an eccentric groove wheel, the outer side of the front portion of the eccentric wheel is connected with a lifting plate, connecting seats are arranged on two sides of the rear portion of the lifting plate, reciprocating sliding rails are connected on two sides of the middle of the fixed panel, the sliding plate is arranged at the front end of the lifting plate, an upper pressing cylinder is connected on the outer side of the top of the sliding plate, an upper buffer block is arranged on the outer side of the bottom of the upper pressing cylinder, pressing sliding rails are arranged on two sides of the front portion of the sliding plate, an upper material folding clamp is connected on the outer side of the front portion of the upper buffer block, and oil pressure buffers are arranged on two sides of the middle of the fixed panel.
Further, the servo motor is rotationally connected with the eccentric sheave, and the eccentric sheave is connected with the lifting plate in a sleeved mode.
Further, the lifting plate and the connecting seat are integrated, and the connecting seat is in sliding connection with the reciprocating sliding rail.
Further, the sliding plate is fixedly connected with the lifting plate through bolts, and the sliding plate and the pressing sliding rail are integrated.
Further, the upper buffer block and the upper folding clamp are integrated, and the upper buffer block is in sliding connection with the pressing sliding rail.
Further, the bottom outside of fixed panel is provided with the fixed plate, and the bottom outside of fixed plate is connected with down the swager cylinder, the top outside of swager cylinder is connected with down the buffer block, and the front portion outside of buffer block is connected with down rolls over the flitch and grabs down.
Further, the size and shape of the lower buffer block are consistent with those of the upper buffer block, and the lower buffer block and the lower folding clamp are integrated.
Further, the oil pressure buffers are symmetrically distributed along the central line of the fixed panel, and the oil pressure buffers are attached to the outer end surfaces of the upper buffer block and the lower buffer block.
The invention provides a hardware material belt slot wheel material folding mechanism, which has the following beneficial effects:
1. The eccentric grooved pulley can drive the lifting plate to move up and down on the reciprocating slide rail through the connecting seat at the rear end in the rotating process, and the sliding plate is fixedly connected with the lifting plate through the bolts, so that the sliding plate can be driven to move together in the lifting process, the upper folding clamp can press the fixed hardware material belt in the moving process of the sliding plate, the folding of the hardware material belt by equipment can be realized, the reciprocating lifting of the lifting plate can be completed by the whole rotation of the servo motor along one direction through the application of the eccentric grooved pulley, the influence of the reciprocating rotation of the servo motor on the service life of the motor can be avoided, and the service life of the equipment can be prolonged.
2. The device provided by the invention bends the hardware material belt by utilizing the displacement force generated when the servo motor rotates, and the upper material pressing cylinder and the lower material pressing cylinder only act on the upper material pressing clamp and the lower material pressing cylinder to fix the hardware material belt, so that compared with the traditional mode of directly pressing and forming by adopting the cylinder, the device can avoid the conditions of inconsistent speed, frequent reciprocating motion of the electromagnetic valve, short service life, long-term high-frequency reciprocating motion of the cylinder, serious heating of the cylinder, greatly reduced service time of the cylinder piston, frequent replacement of the cylinder and the like in the operation process of the cylinder.
3. According to the invention, the servo motor is adopted to reciprocally rotate back and forth to drive the reciprocating lifting plate to fold materials, so that larger noise generated when the air cylinder works is avoided, the oil pressure buffers on the two sides of the fixed panel can buffer the displacement of the upper buffer block and the lower buffer block respectively, the noise generated when the upper buffer block and the lower buffer block work is smaller, and the interference of the noise to staff around equipment can be greatly reduced.
4. In the working process of the equipment, the lifting speed of the lifting plate can be adjusted by adjusting the rotating speed of the servo motor, so that the force of the upward folding material clamp during the downward pressing can be adjusted, the pressing force of the equipment can be adjusted by simple rotating speed adjustment, and the debugging workload of operators can be greatly reduced.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a wheel folding mechanism with a groove for a metal material;
FIG. 2 is a schematic diagram of a side view overall structure of a wheel folding mechanism with a groove for a metal material;
FIG. 3 is a schematic diagram of the front view of a mechanism for folding a metal belt slot wheel according to the present invention;
fig. 4 is a schematic top view of a mechanism for folding a metal belt slot wheel according to the present invention.
The hydraulic buffer device comprises a base plate 1, a fixed panel 2, a servo motor 3, an eccentric grooved pulley 4, a lifting plate 5, a connecting seat 6, a reciprocating slide rail 7, a sliding plate 8, a 9, an upper material pressing cylinder 10, an upper buffer block 11, a material pressing slide rail 12, an upper material folding clamp, a fixed plate 13, a 14, a lower material pressing cylinder 15, a lower buffer block 16, a lower material folding clamp and a 17, and a hydraulic buffer.
Detailed Description
Referring to fig. 1-4, the invention provides a technical scheme that a hardware material belt groove wheel material folding mechanism comprises a bottom plate 1, a servo motor 3 and a sliding plate 8, wherein a fixed panel 2 is arranged on the outer side of the front part of the bottom plate 1, the servo motor 3 is arranged at the rear part of the top of the fixed panel 2, the output end of the servo motor 3 is connected with an eccentric grooved wheel 4, the outer side of the front part of the eccentric rotating wheel 4 is connected with a lifting plate 5, two sides of the rear part of the lifting plate 5 are provided with a connecting seat 6, two sides of the middle part of the fixed panel 2 are connected with a reciprocating sliding rail 7, the sliding plate 8 is arranged at the front end of the lifting plate 5, the outer side of the top of the sliding plate 8 is connected with an upper material pressing cylinder 9, an upper buffer block 10 is arranged on the outer side of the bottom of the upper material pressing cylinder 9, two sides of the front part of the sliding plate 8 are provided with material pressing sliding rails 11, an upper material folding clamp 12 is connected on the outer side of the front part of the upper buffer block 10, and two sides of the middle part of the fixed panel 2 are provided with an oil pressure buffer 17.
Referring to fig. 1-4, a servo motor 3 is rotationally connected with an eccentric sheave 4, the eccentric sheave 4 is sleeved with a lifting plate 5, the lifting plate 5 is integrated with a connecting seat 6, the connecting seat 6 is slidably connected with a reciprocating slide rail 7, a sliding plate 8 is fixedly connected with the lifting plate 5 through bolts, the sliding plate 8 is integrated with a pressing slide rail 11, an upper buffer block 10 is integrated with an upper folding gripper 12, the upper buffer block 10 is slidably connected with the pressing slide rail 11, a fixed plate 13 is arranged at the outer side of the bottom of a fixed panel 2, a lower pressing cylinder 14 is connected at the outer side of the bottom of the fixed plate 13, a lower buffer block 15 is connected at the outer side of the top of the lower pressing cylinder 14, a lower folding gripper 16 is connected at the outer side of the front of the lower buffer block 15, the lower buffer block 15 is identical to the upper buffer block 10 in size and shape, the lower buffer block 15 is integrated with the lower folding gripper 16, the oil buffer 17 is symmetrically distributed along the central line of the fixed panel 2, and the oil buffer 17 is attached to the outer end surfaces of the upper buffer block 10 and the lower buffer block 15;
The method comprises the following specific operations that after a hardware material belt needing to be bent is arranged between an upper folding gripper 12 and a lower folding gripper 16, the upper buffer block 10 can slide in a material pressing sliding rail 11 at the front end of a sliding plate 8 through the operation of an upper material pressing cylinder 9, the upper buffer block 10 can drive the upper folding gripper 12 to move towards the hardware material belt, meanwhile, the lower material pressing cylinder 14 on a fixed plate 13 can operate, the lower buffer block 15 can drive the lower folding gripper 16 to move towards the hardware material belt, after the folding gripper 12 and the lower folding gripper 16 are attached to the hardware material belt, the two can clamp and fix the hardware material belt, a servo motor 3 at the rear end of a fixed panel 2 operates at the moment, an eccentric sheave 4 can rotate, and the eccentric sheave 4 rotates in the process of rotation, the lifting plate 5 can be driven to move up and down on the reciprocating slide rail 7 through the connecting seat 6 at the rear end, the sliding plate 8 and the lifting plate 5 are fixedly connected through bolts, so that the lifting plate 5 can drive the sliding plate 8 to move together in the lifting process, the upper folding gripper 12 can press a fixed hardware material belt in the moving process of the sliding plate 8, the folding of the hardware material belt by equipment can be realized, the reciprocating lifting of the lifting plate 5 can be completed by the whole rotation of the servo motor 3 along one direction through the application of the eccentric grooved pulley 4 in the whole folding process of the equipment, the influence of the reciprocating rotation of the servo motor 3 back and forth on the service life of the motor can be avoided, the service life of the equipment can be prolonged, in addition, the equipment bends the hardware material belt by using the displacement force generated by the rotation of the servo motor 3, the upper pressing cylinder 9 and the lower pressing cylinder 14 only act on the upper folding clamping jaw 12 and the lower pressing cylinder 14 to fix the hardware material belt, compared with the traditional mode of directly pressing and forming by adopting the cylinders, the method can avoid inconsistent speed, frequent reciprocating action of an electromagnetic valve in the operation process of the cylinders, short service life, long-term high-frequency reciprocating action of the cylinders, serious heating of the cylinders, greatly reduced use time of the cylinders, frequent replacement of the cylinders and the like, and in addition, the method can avoid larger noise generated in the operation of the cylinders by adopting the servo motor 3 to reciprocally rotate back and forth to drive the reciprocal lifting of the lifting plate 5 to fold the materials, the hydraulic buffers 17 on two sides of the fixed panel 2 can buffer the displacement of the upper buffer block 10 and the lower buffer block 15 respectively, so that the noise generated when the upper buffer block 10 and the lower buffer block 15 work is smaller, the noise can be greatly reduced to the interference generated by workers around the equipment, the lifting speed of the lifting plate 5 can be adjusted by adjusting the rotating speed of the servo motor 3 in the working process of the equipment, and then the force when the upper folding clamp is grabbed and pressed down can be adjusted, so that the pressing force of the equipment can be adjusted through simple rotating speed adjustment, and the debugging workload of the workers can be greatly reduced.
In sum, when the hardware material belt groove wheel material folding mechanism is used, firstly, a hardware material belt needing to be folded is arranged between an upper material folding clamp grab 12 and a lower material folding clamp grab 16, then the upper material folding clamp grab 12 and the lower material folding clamp grab 16 work through an upper material pressing cylinder 9, an upper buffer block 10 can slide in a material pressing sliding rail 11 at the front end of a sliding plate 8, the upper buffer block 10 can drive the upper material folding clamp grab 12 to move towards the hardware material belt, meanwhile, a lower material pressing cylinder 14 on a fixed plate 13 works, a lower buffer block 15 can drive the lower material folding clamp grab 16 to move towards the hardware material belt, after the material folding clamp grab 12 and the lower material folding clamp grab 16 are attached to the hardware material belt, the hardware material belt can be clamped and fixed, a servo motor 3 at the rear end of a fixed panel 2 works, an eccentric sheave 4 can rotate, and the eccentric sheave 4 can drive a lifting plate 5 to move upwards and downwards on a reciprocating sliding rail 7 through a connecting seat 6 at the rear end in the rotating process;
Then, the sliding plate 8 is fixedly connected with the lifting plate 5 through bolts, so that the lifting plate 5 can drive the sliding plate 8 to move together in the lifting process, the upper folding clamp 12 can press the fixed hardware material belt in the moving process of the sliding plate 8, the folding of the hardware material belt by equipment can be realized, the reciprocating lifting of the lifting plate 5 can be completed by rotating the servo motor 3 in one direction in the whole folding process of the equipment through the application of the eccentric grooved pulley 4, the influence of the reciprocating rotation of the servo motor 3 back and forth on the service life of the motor can be avoided, and the service life of the equipment can be prolonged;
Then, the equipment bends the hardware material belt by using the displacement force generated when the servo motor 3 rotates, the upper pressing cylinder 9 and the lower pressing cylinder 14 only act on the upper bending clamp 12 and the lower pressing cylinder 14 to fix the hardware material belt, compared with the traditional mode of directly pressing and forming by adopting the cylinders, the speed inconsistency of the cylinders in the operation process can be avoided, the electromagnetic valve is frequently reciprocated, the service life is shortened, the cylinders are reciprocated for a long time at high frequency, the heat of the cylinders is serious, the service time of the cylinder piston is greatly reduced, the frequent replacement of the cylinders is caused, and the like;
finally, in the working process of the equipment, the lifting speed of the lifting plate 5 can be adjusted by adjusting the rotating speed of the servo motor 3, so that the force of the upward folding material clamp during the downward pressing can be adjusted, the pressing force of the equipment can be adjusted through simple rotating speed adjustment, and the debugging workload of operators can be greatly reduced.
Claims (5)
1. The utility model provides a five metals material trough of belt wheel book material mechanism, its characterized in that, including bottom plate (1), servo motor (3) and sliding plate (8), the front portion outside of bottom plate (1) is provided with fixed panel (2), servo motor (3) settle in the top back end of fixed panel (2), the output of servo motor (3) is connected with eccentric sheave (4), and the front portion outside of eccentric sheave (4) is connected with lifter plate (5), the rear portion both sides of lifter plate (5) are provided with connecting seat (6), the middle part both sides of fixed panel (2) are connected with reciprocating slide rail (7), sliding plate (8) settle in the front end of lifter plate (5), and the top outside of sliding plate (8) is connected with last swage cylinder (9), the bottom outside of last swage cylinder (9) is settled there is last buffer block (10), the front portion both sides of sliding plate (8) are provided with swage (11), the front portion outside of going up buffer block (10) is connected with and is folded and is grabbed panel (12), the bottom of fixed plate (14) is settled in the bottom of fixed plate (13), the top outside of unloading cylinder (14) is connected with down buffer block (15), and is connected with down in the front portion outside of lower buffer block (15) and roll over the feed collet and grab (16), the size shape of lower buffer block (15) is unanimous with the size shape of last buffer block (10), and down buffer block (15) grab (16) as an organic wholely with roll over the feed collet down, central line symmetric distribution along fixed panel (2) of oil pressure buffer (17), and oil pressure buffer (17) and last buffer block (10), lower buffer block (15) outer terminal surface laminating mutually.
2. The hardware material belt groove wheel folding mechanism according to claim 1, wherein the servo motor (3) is rotationally connected with the eccentric grooved wheel (4), and the eccentric grooved wheel (4) is sleeved with the lifting plate (5).
3. The hardware material belt slot wheel material folding mechanism according to claim 1, wherein the lifting plate (5) and the connecting seat (6) are integrated, and the connecting seat (6) is in sliding connection with the reciprocating sliding rail (7).
4. The hardware material belt slot wheel material folding mechanism according to claim 1, wherein the sliding plate (8) is fixedly connected with the lifting plate (5) through bolts, and the sliding plate (8) and the material pressing sliding rail (11) are integrated.
5. The hardware material belt slot wheel material folding mechanism according to claim 1, wherein the upper buffer block (10) and the upper material folding clamp grab (12) are integrated, and the upper buffer block (10) is in sliding connection with the material pressing sliding rail (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210779968.3A CN115055556B (en) | 2022-07-04 | 2022-07-04 | Material mechanism is rolled over to five metals material trough of belt wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210779968.3A CN115055556B (en) | 2022-07-04 | 2022-07-04 | Material mechanism is rolled over to five metals material trough of belt wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115055556A CN115055556A (en) | 2022-09-16 |
| CN115055556B true CN115055556B (en) | 2025-01-10 |
Family
ID=83205440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210779968.3A Active CN115055556B (en) | 2022-07-04 | 2022-07-04 | Material mechanism is rolled over to five metals material trough of belt wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115055556B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861967A (en) * | 2019-12-09 | 2020-03-06 | 江苏顺航电子科技有限公司 | Material feeding and folding device in material belt folding and folding machine |
| CN113618476A (en) * | 2021-08-19 | 2021-11-09 | 襄阳华中科技大学先进制造工程研究院 | A material loading transport mechanism for torsion shaft rolling equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100922823B1 (en) * | 2009-08-28 | 2009-10-21 | 이창영 | Wing plate bending device of film |
| CN204304202U (en) * | 2014-12-05 | 2015-04-29 | 华兆鼎泰科技（天津）有限公司 | One Seed packaged band breaking device |
| CN206951877U (en) * | 2017-07-11 | 2018-02-02 | 昆山佳沃通信技术有限公司 | A kind of folding material device of quick folding material |
-
2022
- 2022-07-04 CN CN202210779968.3A patent/CN115055556B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861967A (en) * | 2019-12-09 | 2020-03-06 | 江苏顺航电子科技有限公司 | Material feeding and folding device in material belt folding and folding machine |
| CN113618476A (en) * | 2021-08-19 | 2021-11-09 | 襄阳华中科技大学先进制造工程研究院 | A material loading transport mechanism for torsion shaft rolling equipment |
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| Publication number | Publication date |
|---|---|
| CN115055556A (en) | 2022-09-16 |
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