CN111974854A - Table type covering machine jacking mechanism based on segmented control principle - Google Patents
Table type covering machine jacking mechanism based on segmented control principle Download PDFInfo
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- CN111974854A CN111974854A CN202010648998.1A CN202010648998A CN111974854A CN 111974854 A CN111974854 A CN 111974854A CN 202010648998 A CN202010648998 A CN 202010648998A CN 111974854 A CN111974854 A CN 111974854A
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- jacking
- block
- wedge
- guide rail
- shaped block
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- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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Abstract
The invention discloses a jacking mechanism of a table type covering machine based on a segmented control principle, which comprises a base, a jacking block, a screw rod, a left wedge-shaped block, a right wedge-shaped block and a motor, wherein the jacking block is arranged on the base; the screw rod is rotationally arranged on the base and is provided with a left-handed thread section matched with the left wedge-shaped block and a right-handed thread section matched with the right wedge-shaped block; the jacking block is provided with two sections of symmetrically arranged bottom inclined planes which are respectively matched with the left wedge-shaped block and the right wedge-shaped block; the bottom inclined plane comprises pre-edge-wrapping surfaces at two ends, an end-edge-wrapping surface and a middle quick travel surface, and the inclination of the quick travel surface is greater than the inclination of the pre-edge-wrapping surfaces and the inclination of the end-edge-wrapping surfaces. The mechanism provides a power source through a motor and then is driven to a wedge-shaped sliding block through a lead screw to realize the jacking function of the mechanism; through setting up syllogic guide rail board and gyro wheel, can accomplish quick jacking when no-load stroke, can also reply the jacking speed state that can bear the heavy load when the heavy load stroke.
Description
Technical Field
The invention relates to the field of sheet metal processing equipment, in particular to a jacking mechanism of a table type covering machine based on a segmented control principle.
Background
In recent years, with the continuous development of the domestic automobile industry, the automobile modeling is increasingly complicated, and therefore novel problems such as large-angle and special-shaped edge covering are brought about.
The four-door two-cover automobile is an important component of an automobile body assembly, belongs to an automobile body profile, has extremely high requirements on appearance and quality, is accompanied with diversification of automobile types and high-speed production rhythm, and can better deal with the problems due to the characteristics of high rhythm, stable quality and the like of a special edge covering machine.
At present, the traditional special edge covering machine mostly uses two forms of hydraulic pressure and motor drive.
The hydraulic transmission technology is mature in use, widely applied to engineering machinery and large-scale presses, and is characterized by large output force, small volume of an actuating element and the like, but the defects are obvious: the energy consumption is high, the noise is high, high pollution, position and pressure control precision are low, etc., wherein the shortcoming of high energy consumption especially runs counter to the mainstream policy of current energy saving and emission reduction.
The special taping machine driven by the motor is divided into servo motor driving and common motor driving, the taping machine using the common motor usually realizes the motion track by a link mechanism or a cam mechanism, the taping position is controlled, the start and stop of the taping machine are generally realized by an inductive switch arranged on a motor shaft, the position control precision is poor, the stop or acceleration and deceleration of any stroke cannot be freely realized, and the debugging of the equipment and the quality guarantee are not facilitated.
For example, in a hemming device and method disclosed in patent US20080302161a1, a lifting mechanism of the hemming device mainly adopts a cylinder, a connecting rod and a cam mechanism to realize a reciprocating lifting function, the structure is complex, the bearable load is relatively small, the lifting stroke is difficult to control, and the stability is poor.
Patent CN203265351U discloses a taping machine of car door, convert motor output torque into the forward thrust of nut seat through ball screw, the nut seat drives two and three rotations around another fulcrum separately of connecting rod, two and three rotations around the fulcrum of connecting rod are simultaneously, promote respectively connecting rod one and five rotations around its fulcrum on main body frame of connecting rod, the power process is accomplished to the power hinge that increases that constitutes through two and three of connecting rod, utilize ball screw and many link mechanism to realize bordured thrust promptly, act on the tucking tool mechanism, but the load scope that this structure can bear is less, poor stability.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a jacking mechanism of a table type covering machine based on a segmented control principle so as to solve the problem of low control precision of the position and pressure of the jacking mechanism in the prior art.
Therefore, the invention provides a jacking mechanism of a table type covering machine based on a segmented control principle, which comprises a base, a jacking block, a screw rod, a left wedge-shaped block, a right wedge-shaped block and a motor, wherein the jacking block is arranged on the base; the screw rod is rotatably arranged on the base and is provided with a left-handed thread section matched with the left wedge-shaped block and a right-handed thread section matched with the right wedge-shaped block; the jacking block is provided with symmetrically arranged bottom inclined planes, and the two sections of bottom inclined planes are respectively matched with the left wedge-shaped block and the right wedge-shaped block.
The left wedge block and the right wedge block are provided with rollers; the bottom inclined plane is divided into three sections, and comprises pre-edge-wrapping surfaces at two ends, final edge-wrapping surfaces and a middle quick travel surface, wherein the inclination of the quick travel surface is greater than the inclination of the pre-edge-wrapping surfaces and the inclination of the final edge-wrapping surfaces.
Further, the bottom inclined plane front side of jacking piece is equipped with the guide rail board, the guide rail board is the syllogic guide rail for with the gyro wheel contact.
Furthermore, the three-section guide rail comprises a pre-edge-covering guide rail, a quick travel guide rail and a final edge-covering guide rail, and the inclination angles of the pre-edge-covering guide rail and the final edge-covering guide rail are respectively corresponding to the same inclination angles of the pre-edge-covering surface and the final edge-covering surface; the design has the advantages that when the roller is in contact with the quick travel guide rail, the quick lifting of the jacking block is realized; when the jacking block is in contact with the left wedge block and the right wedge block, the load lifting of the jacking block is realized, namely the left wedge block and the right wedge block can bear larger load to enable the jacking block to lift so as to meet the load requirement when the edge is covered.
Furthermore, lifting guide plates are arranged on two sides of the jacking block.
Furthermore, the lifting guide plate is provided with a V-shaped groove, and the jacking block is provided with a V-shaped convex block matched with the V-shaped groove.
Furthermore, the edges of the upper ends of the reinforced side walls on the two sides of the jacking block are arc-shaped.
Further, still include oil supply system, oil supply system includes oil pump and oil pipe.
Furthermore, a pressure sensor is arranged at the joint of the jacking block and the load.
Furthermore, the left wedge block and the right wedge block are respectively provided with nuts matched with the lead screw, the design can meet the load requirement when the edge is covered, the service life of the wedge block is prolonged, and the positioning accuracy and stability matched with the lead screw are guaranteed.
Compared with the prior art, the invention has the beneficial effects that:
the table type covering machine jacking mechanism based on the segmented control principle of the invention provides a power source through a motor and then realizes the jacking function of the mechanism by transmitting a lead screw to a wedge-shaped block; through setting up syllogic guide rail plate, wedge and gyro wheel, can accomplish quick jacking when no-load stroke to improve the beat of borduring, can also resume the jacking state that can bear the heavy load when the heavy load stroke, the maximum load can reach 80 tons.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a table type covering machine based on a segmented control principle of the invention;
FIG. 2 is a schematic structural diagram of a jacking mechanism of the table type edge covering machine based on a segmented control principle;
FIG. 3 is a structural diagram of the lifting guide plate and the lifting block in the lifting driving mechanism of the present invention;
FIG. 4 is a structural diagram of the wedge block and the jacking block in the jacking driving mechanism of the present invention;
FIG. 5 is a schematic structural diagram of a rail plate in the jacking driving mechanism according to the present invention; and
fig. 6 is a cross-sectional view of the left wedge block and the lead screw in the jacking driving mechanism of the invention.
Description of the reference numerals
1. A jacking driving mechanism; 2. a base of the molding bed; 3. a taping machine base; 4. molding a tire mold; 5. pressing a cutter; 6. a pressing knife mounting seat; 7. a base; 8. jacking blocks; 9. a lead screw; 10. a left wedge block; 11. a right wedge block; 12. a guide rail plate; 13. a pressure sensor; 14. a motor; 15. a roller; 16. a lifting guide plate; 17. an oil pump; 18. a drag chain; 81. reinforcing the side wall; 82. a V-shaped bump; 83. a bottom bevel; 831. pre-binding the edge surface; 832. a fast stroke surface; 833. finally, edge surface wrapping; 101. a nut; 121. pre-wrapping a guide rail; 122. a fast travel guide rail; 123. a final edge-wrapping guide rail; 161. v-shaped grooves.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1-6 illustrate some embodiments according to the invention.
As shown in fig. 1, the table-type taping machine based on the segment control principle includes a jacking driving mechanism 1, a bed die base 2, a taping machine base 3, a bed die 4, a pressing knife mounting seat 6, and a pressing knife 5.
The automobile door cover plate is fixed on a moulding bed 4, the moulding bed 4 is fixedly connected with a moulding bed base 2, and a jacking driving mechanism 1 drives a moving mechanism consisting of the moulding bed 4 and the moulding bed base 2 to move up and down.
A circle of pressing knives 5 are distributed on the periphery of the forming die 4, the pressing knives 5 are fixed on a pressing knife mounting seat 6, and when the jacking driving mechanism 1 drives a movable mechanism consisting of the forming die 4 and the forming die base 2 to move upwards, the pressing knives 5 bend the flanging of the plate to complete the edge covering process.
As shown in fig. 2, the jacking driving mechanism includes a base 7, a jacking block 8, a screw 9, a left wedge block 10, a right wedge block 11, and a motor 14, wherein the motor 14 is a servo motor, and the screw 9 is a ball screw; the base 7 is a casting part with certain rigidity, bearing holes are formed in two ends of the casting part and used for mounting a lead screw 9, the lead screw 9 is driven by a servo motor 14, the servo motor 14 is connected to the base 7 through a flange, the lead screw 9 penetrates through a hollow shaft on the servo motor 14 and is in transmission connection with the hollow shaft, and the servo motor is provided with a servo driver and can accurately control parameters such as rotating speed and output torque of the servo motor.
As shown in fig. 6, the screw 9 has a left-handed thread section engaged with the left wedge 10 and a right-handed thread section engaged with the right wedge 11, and the screw 9 is provided with two nuts 101, i.e., a left-handed nut and a right-handed nut, the left-handed nut is installed in the left wedge 10, the right-handed nut is installed in the right wedge 11, and when the screw 9 is driven by the motor 14 to rotate, the left and right nuts drive the left wedge 10 and the right wedge 11 to move in opposite directions or vice versa. Wherein, the lead screw 9 is a ball lead screw, and has the characteristics of high positioning precision and small resistance to overcome during work.
The upper parts of the left wedge-shaped block 10 and the right wedge-shaped block 11 are both wedge-shaped sliding blocks with inclined surfaces, and the inclined directions of the left wedge-shaped block and the right wedge-shaped block are symmetrically arranged; the lower part of the jacking block 8 is provided with two sections of symmetrically arranged bottom inclined planes 83, the inclined angles of the bottom inclined planes are the same as those of the left wedge block 10 and the right wedge block 11, and when the jacking block 8 falls on the left wedge block 10 and the right wedge block 11, the bottom of the jacking block 8 can be completely attached to the inclined surfaces of the left wedge block 10 and the right wedge block 11; when the screw rod 9 is driven by the motor 14 to rotate, the left and right nuts drive the left wedge-shaped block 10 and the right wedge-shaped block 11 to move oppositely or reversely, so as to drive the jacking block 8 to move vertically up and down.
Set up detachable nut in left wedge 10 and right wedge 11, can reach the load requirement when borduring, improve the life of wedge simultaneously, guarantee with lead screw complex positioning accuracy and stability.
Specifically, as shown in fig. 2, in order to reduce the overall size of the mechanism, the present invention is designed with a quick stroke mechanism including a rail plate 12 and a roller 15.
As shown in fig. 4 and 5, the two sections of bottom inclined surfaces 83 of the jacking block 8 are designed into three sections, the bottom inclined surfaces 83 include a pre-wrapping surface 831, a quick travel surface 832 and a final wrapping surface 833, the pre-wrapping surface 831 and the final wrapping surface 833 are inclined surfaces stressed mainly (pre-wrapping and final wrapping), and the inclination of the quick travel surface 832 is greater than the inclination of the pre-wrapping surface 831 and the final wrapping surface 833.
The front side of the jacking block 8 is additionally provided with a guide rail plate 12, the guide rail plate 12 is also provided with two sections of three-section guide rails which are symmetrically arranged, each three-section guide rail comprises a pre-edge-covered guide rail 121, a quick travel guide rail 122 and a final edge-covered guide rail 123, the inclination of the quick travel guide rail 122 in the middle of the guide rail plate 12 is greater than the inclination of the pre-edge-covered guide rail 121 and the final edge-covered guide rail 123 at the two ends of the guide rail plate 12, and the inclination of the pre-edge-covered guide rail 121 and the final edge-covered guide rail 123 at the two ends of the guide rail plate 12 is the.
As shown in fig. 2, the roller 15 is installed on the left wedge 10 and the right wedge 11, when the roller 15 moves to the fast travel guide rail 122 along with the left and right wedges, the jacking block 8 can be jacked fast to complete fast feeding of the idle travel, and when the roller 15 is separated from the fast travel guide rail 122, the bottom surface of the jacking block 8 is in contact with the wedges to be stressed, and the state of being capable of bearing a large load is restored.
When the load of the idle stroke system is small, the roller 15 is in contact with the quick stroke guide rail, so that the quick lifting of the jacking block is realized; when pre-edge-covering and final edge-covering are carried out, the bottom of the jacking block is in contact with the wedge-shaped block to bear large load pressure, and the lifting motion of the jacking block is realized. Through the design of quick stroke structure, can improve the beat of borduring.
In an embodiment, as shown in fig. 3 and 4, two lifting guide plates 16 are disposed on two sides of the lifting block 8, the lifting guide plates 16 are fixedly connected with the base 7, a V-shaped groove 161 is formed in an inner side surface of each lifting guide plate 16, a V-shaped protrusion 82 is correspondingly designed on the lifting block 8, and the V-shaped protrusion 82 and the V-shaped groove 161 are matched with each other to achieve a guiding effect when the lifting block 8 moves up and down.
In an embodiment, as shown in fig. 2 and 4, in order to improve the structural strength of the jacking block 8, the jacking block 8 is prevented from having stress concentration, the upper end of the reinforcing side wall 81 at the front and back sides of the jacking block 8 is arc-shaped, when the left wedge block 10 and the right wedge block 11 push the jacking block 8 to move upwards, the reinforcing rib at the upper end of the jacking block 8 can disperse the acting force of the left wedge block 10 and the right wedge block 11 on the upper end, so that the stress concentration at the upper end surface of the jacking block 8 is reduced, and the service life of the jacking block 8 is prolonged.
In one embodiment, as shown in fig. 1, in order to improve the operating environment of the lead screw 9, the present invention designs an oil supply system comprising an oil pump 17, an oil pipe and a drag chain 18; the oil pump 17 is controlled by a PLC, the oil pipe is connected to the left nut and the right nut through the drag chain 18, and the oil pump 17 can be controlled to pump oil into the nuts periodically by setting a program, so that the lubrication of the nuts is improved, and the service life of the nuts is prolonged.
In one embodiment, as shown in fig. 1, in order to precisely control the force output of the system, the present invention employs a pressure sensor 13, and the pressure sensor 13 is located at the connection between the jacking mechanism and the load, and can feed back the current force output value of the system in real time, and feed back the force output value to the control system, and connect with a servo encoder signal in the control system, thereby implementing closed-loop control based on pressure.
In one embodiment, the system is driven and position controlled by replacing the servo motor in the above embodiment with a common motor, a stop switch and a hydraulic motor, and the corresponding driving function can be realized.
In an embodiment, the ball screw in the above embodiment is replaced by a trapezoidal screw or a planetary screw, and the movement of the two wedge-shaped sliders is realized by the trapezoidal screw or the planetary screw with left and right rotation, so that the corresponding driving function can be realized, wherein the planetary roller screw and the ball screw have the advantages of providing rated dynamic load and static load higher than those of the ball screw, and the replacement of the ball by the threaded roller can quickly release the load through a plurality of contact lines, so that higher impact resistance can be realized.
In one embodiment, the roller is installed on the jacking block, the guide rail plate is designed on the wedge-shaped sliding block, the guide rail plate 12 is matched with the roller 15, the quick jacking stroke can be completed, when the roller 15 moves to a large-angle inclined plane along with the left and right wedge blocks, the jacking block 8 can be quickly jacked to complete the quick feeding of the idle stroke, and when the roller 15 is separated from the large-angle inclined plane, the bottom surface of the jacking block 8 is in contact with the inclined plane of the wedge-shaped block again to restore to the state of bearing a large load.
Besides the above beneficial effects, the invention also has the following characteristics:
1. the power source of the driving mechanism is provided by the servo motor, so that the driving mechanism has the advantages of low noise, no pollution, low energy consumption, high response speed, flexibility in debugging and high control precision; the motion conversion is completed by the ball screw, the mechanical efficiency can reach more than 95%, and the transmission efficiency is high.
2. The force-increasing mechanism composed of the ball screw and the wedge-shaped sliding block can multiply the torque generated by the motor to the terminal position, the maximum load of the force-increasing mechanism can reach 80t, the edge covering requirement of four doors and two covers of multiple vehicle types can be met, and the force-increasing mechanism can also be used on other press machines as a power source.
3. The sensor system composed of the pressure sensor and the servo encoder can sense the displacement of a moving part and the force output condition of the system in real time, can realize a pressure-displacement controlled closed-loop control system, can accurately control the displacement and the output pressure of the system, and the displacement control precision is usually determined by the encoder precision and the system transmission efficiency.
4. Due to the design of the quick stroke, when the load of the idle stroke system is small, the roller is in contact with the quick stroke guide rail, so that the quick feeding of the jacking block is realized, and the production rhythm is improved; when pre-edge-covering and final edge-covering are carried out, the bottom of the jacking block is in surface contact with the recovery surface of the wedge block so as to bear large load pressure, the design can greatly shorten the size and cycle time of the mechanism, and the system stress requirements under different loads can be met.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A table type taping machine jacking mechanism based on a segmented control principle is characterized by comprising a base (7), a jacking block (8), a screw rod (9), a left wedge-shaped block (10), a right wedge-shaped block (11) and a motor (14);
the lead screw (9) is rotatably arranged on the base (7) and is provided with a left-handed thread section matched with the left wedge-shaped block (10) and a right-handed thread section matched with the right wedge-shaped block (11); the jacking block (8) is provided with two symmetrically arranged bottom inclined planes (83), and the two bottom inclined planes (83) are respectively matched with the left wedge-shaped block (10) and the right wedge-shaped block (11);
wherein, the left wedge-shaped block (10) and the right wedge-shaped block (11) are provided with rollers (15); the bottom inclined plane (83) is divided into three sections, the three sections comprise pre-hemming surfaces (831) at two ends, final hemming surfaces (833) and a middle quick stroke surface (832), and the inclination angle of the quick stroke surface (832) is larger than the inclination angles of the pre-hemming surfaces (831) and the final hemming surfaces (833).
2. The jacking mechanism of the table type covering machine based on the segmented control principle as claimed in claim 1, wherein a guide rail plate (12) is arranged on the front side of the bottom inclined surface of the jacking block (8), and the guide rail plate (12) is a three-section type guide rail.
3. The jacking mechanism of the table type covering machine based on the segmented control principle as claimed in claim 2, wherein the three-segment guide rail comprises a pre-covering guide rail (121), a quick travel guide rail (122) and a final covering guide rail (123), and the inclination angles of the pre-covering guide rail (121) and the final covering guide rail (123) are respectively the same as the inclination angles of the pre-covering surface (831) and the final covering surface (833).
4. The jacking mechanism of a table type covering machine based on a segmented control principle according to claim 1, wherein lifting guide plates (16) are arranged on two sides of the jacking block (8).
5. The jacking mechanism of a table type covering machine based on the segmented control principle as claimed in claim 4, wherein the lifting guide plate (16) is provided with a V-shaped groove (161), and the jacking block (8) is provided with a V-shaped projection (82) matched with the V-shaped groove (161).
6. The jacking mechanism of the table type covering machine based on the segmented control principle as claimed in claim 1, wherein the upper end edges of the reinforcing side walls (81) on two sides of the jacking block (8) are arc-shaped.
7. The jacking mechanism of a table covering machine based on a segmented control principle as claimed in claim 1, further comprising an oil supply system, wherein the oil supply system comprises an oil pump (17) and an oil pipe.
8. The jacking mechanism of the table type covering machine based on the segmented control principle as claimed in claim 1, wherein a pressure sensor (13) is arranged at the joint of the jacking block (8) and a load.
9. The jacking mechanism of the table type covering machine based on the segmented control principle as claimed in claim 1, wherein nuts (101) matched with the lead screw (9) are respectively arranged on the left wedge-shaped block (10) and the right wedge-shaped block (11).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010648998.1A CN111974854A (en) | 2020-07-08 | 2020-07-08 | Table type covering machine jacking mechanism based on segmented control principle |
| PCT/CN2020/141453 WO2022007364A1 (en) | 2020-07-08 | 2020-12-30 | Lifting mechanism for tabletop hemming machine based on sectional control principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010648998.1A CN111974854A (en) | 2020-07-08 | 2020-07-08 | Table type covering machine jacking mechanism based on segmented control principle |
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| CN111974854A true CN111974854A (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010648998.1A Pending CN111974854A (en) | 2020-07-08 | 2020-07-08 | Table type covering machine jacking mechanism based on segmented control principle |
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| CN (1) | CN111974854A (en) |
| WO (1) | WO2022007364A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007364A1 (en) * | 2020-07-08 | 2022-01-13 | 安徽巨一科技股份有限公司 | Lifting mechanism for tabletop hemming machine based on sectional control principle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116060512B (en) * | 2023-02-23 | 2023-09-15 | 苏州市职业大学（苏州开放大学） | Metal sheet metal edge-wrapping bending forming equipment |
| CN116689583B (en) * | 2023-07-20 | 2023-10-27 | 烟台吉兴汽车部件有限公司 | Edge covering mechanism for roof window of automobile roof |
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| CN205114934U (en) * | 2015-11-17 | 2016-03-30 | 常春振 | Jacking device for civil engineering |
| CN205355672U (en) * | 2015-12-31 | 2016-06-29 | 盐城工学院 | Insulating lift telescopic platform of portable live working |
| CN110630657A (en) * | 2018-06-22 | 2019-12-31 | 湖北福邦汽车配件科技有限公司 | Clutch control device for air-assisted vehicle |
| CN109177168A (en) * | 2018-09-21 | 2019-01-11 | 赵自文 | A kind of 3D printer shaped platform elevating mechanism |
| CN110216182A (en) * | 2019-05-31 | 2019-09-10 | 中国第一汽车股份有限公司 | Servo-drive pressing device |
| CN210340224U (en) * | 2019-08-16 | 2020-04-17 | 江苏维普光电科技有限公司 | Lifting device based on wedge-shaped pushing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007364A1 (en) * | 2020-07-08 | 2022-01-13 | 安徽巨一科技股份有限公司 | Lifting mechanism for tabletop hemming machine based on sectional control principle |
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| Publication number | Publication date |
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| WO2022007364A1 (en) | 2022-01-13 |
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