CN213547290U - Multi-connected synchronous motion electric cylinder - Google Patents
Multi-connected synchronous motion electric cylinder Download PDFInfo
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- CN213547290U CN213547290U CN202022953758.0U CN202022953758U CN213547290U CN 213547290 U CN213547290 U CN 213547290U CN 202022953758 U CN202022953758 U CN 202022953758U CN 213547290 U CN213547290 U CN 213547290U
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Abstract
The utility model relates to an electronic jar technical field, concretely relates to synchronous motion electronic jar more than ally oneself with. The electric cylinder comprises a connecting seat, a motor, a screw rod and a cylinder body. The motor is fixedly arranged on the connecting seat. The output shaft of the motor is connected with a driving bevel gear. The lead screw is located inside the cylinder body. The driving end of the screw rod is connected with a driven bevel gear. The screw rod comprises a vertical screw rod, and the axis of the vertical screw rod is vertical to the axis of the output shaft of the motor. The output shaft of the motor and the driving ends of the lead screws are both positioned inside the connecting seat. The drive bevel gear is engaged with a plurality of driven gears. The motor drives the driving bevel gear to rotate, drives the driven bevel gear to rotate, and further drives the plurality of screw rods to synchronously rotate. The utility model discloses an to the improvement of structure, utilize bevel gear's meshing transmission to make a plurality of flexible ends of electronic jar together move, avoided the deviation that a plurality of motors of software control realized the synchronous in-process of motion and appeared, improved the position accuracy in the synchronous motion.
Description
Technical Field
The utility model relates to an electronic jar technical field, concretely relates to synchronous motion electronic jar more than ally oneself with.
Background
The electric cylinder has the working principle that electric power is used as a direct power source, various types of motors are adopted to drive lead screws or nuts in different forms to rotate, the screw motion between components is converted into linear motion of the nuts or the lead screws, and then the nuts or the lead screws drive the cylinder barrel or the load to do reciprocating linear motion. The motor is generally selected from an alternating current servo motor, a stepping servo motor and a direct current servo motor. The traditional electric cylinder generally adopts an electric motor to drive a screw rod to rotate, and the screw motion between components is converted into the linear motion of a nut. The existing electric cylinder only extends in one direction, and needs to move in a same position under special environment and requirements.
For example, in an industrial automation process, articles are placed from one place to another and the position and posture of the articles are maintained during the placement process. In order to reduce the degree of freedom of the robot, the horizontal movement of the end effector of the robot is generally realized by adopting a joint connection mode and adding one or more groups of parallelogram structures, and most of palletizing robots and high-speed grabbing parallel robots in the market adopt the structure. However, such a structure needs to be installed on a joint type robot, so that the robot is bulky in structure and large in occupied space. Meanwhile, the difficulty in controlling the position synchronization precision of the plurality of electric cylinders is high.
In summary, how to design an electric cylinder with a simpler structure and better position motion synchronization in the synchronous position control process becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
An object of the utility model is to provide a better electronic jar of synchronism of simple structure, position motion for current electronic jar realizes synchronous motion's in-process.
In order to achieve the above purpose, the utility model adopts the following scheme: the utility model provides a multi-connected synchronous motion electric cylinder, which comprises a connecting seat, a motor, a screw rod and a cylinder body;
the motor is fixedly arranged on the connecting seat, and an output shaft of the motor is connected with a driving bevel gear;
the screw rod is positioned in the cylinder body, one end of the cylinder body is fixedly arranged on the connecting seat, the driving end of the screw rod is connected with a driven bevel gear, the screw rod comprises a vertical screw rod, and the axis of the vertical screw rod is vertical to the axis of an output shaft of the motor;
the output shaft of the motor and the driving ends of the lead screws are located inside the connecting seat, the driving bevel gear is meshed with the driven gears, and the motor drives the driving bevel gear to rotate to drive the driven bevel gear to rotate to drive the lead screws to synchronously rotate.
Preferably, the screw rod further comprises a parallel screw rod, the axis of the parallel screw rod is coincident with the axis of the output shaft of the motor, the driven bevel gear of the parallel screw rod is meshed with the driven bevel gear of the vertical screw rod, and the driven bevel gear of the vertical screw rod is meshed with the driving bevel gear. So set up, increased the ascending degree of freedom of motion of the output shaft direction that is on a parallel with the motor, the output torque of motor is through the transmission of the driven bevel gear of perpendicular lead screw, again through the driven bevel gear of parallel lead screw, on exporting parallel lead screw, further richened the flexible direction of the electronic jar of the synchronous motion that allies oneself with more.
Preferably, the screw rod is provided with 4 vertical screw rods, and the included angle between the axes of the adjacent vertical screw rods is 90 degrees. According to the arrangement, the vertical screw rod and the parallel screw rod form a three-dimensional coordinate system, when the motor is driven, the telescopic ends of the electric cylinders move simultaneously, so that simple movement is superimposed to form composite movement, and the position control of analog movement is facilitated.
Preferably, the driven bevel gears of the vertical screw shafts are identical. The sizes of the driven bevel gears of the 4 vertical screw rods meshed with the driving bevel gear are the same, the transmission ratio in the bevel gear transmission process is fixed, the extension amount of the 4 extension ends of the multi-connection synchronous motion electric cylinder is kept consistent, and the electric cylinder is convenient to realize quick automatic centering when being applied to a positioning clamp.
Preferably, the screw rod comprises a first screw rod, a second screw rod and a third screw rod, the first screw rod and the second screw rod are vertical screw rods, the third screw rod is a parallel screw rod, the axis of the first screw rod is overlapped with the axis of the second screw rod, a first driven bevel gear of the first screw rod and a second driven bevel gear of the second screw rod are respectively meshed with the driving bevel gear, and a third driven bevel gear of the third screw rod is meshed with the first driven bevel gear of the first screw rod. So set up, when being applied to the manipulator, the first lead screw of electronic jar is convenient for realize the function of automatic centering with the third lead screw, and the third lead screw is favorable to realizing carrying out the tight function of clamp from the locating surface of perpendicular to work piece to the work piece, and location and tight function of clamp are through a motor control, have reduced the complexity of control program, have improved the response time of executing end mechanism.
Preferably, the first driven bevel gear is the same as the second driven bevel gear, and the third driven bevel gear is the same as the driving bevel gear, so that the transmission precision is further improved, and the position precision is further controlled by a motor conveniently.
Preferably, the first driven bevel gear is the same as the drive bevel gear, so that the transmission ratios between the first driven bevel gear and the drive bevel gear and between the second driven bevel gear and the drive bevel gear are both 1, and the position precision in the transmission process is further ensured.
Preferably, the motor is a servo motor. By utilizing the characteristics of the servo motor, the position control precision of the electric cylinder is further improved, and the operation stability and the response speed are improved.
The utility model provides an electronic jar of synchronous motion that allies oneself with compares with prior art, has following substantive characteristics and progress:
1. the output shaft of the motor and the driving ends of the lead screws in the multi-connected synchronous motion electric cylinder are positioned in the connecting seat, the driving bevel gear on the output shaft is meshed with the driven gears, the position of the telescopic ends of the electric cylinder is controlled by controlling one motor, and the telescopic ends of the electric cylinder move together through meshing transmission of the bevel gears, so that the deviation generated in the process of controlling the motors to realize motion synchronization through software is avoided, and the position precision in synchronous motion is improved;
2. this electronic jar of synchronous motion that allies oneself with passes through the meshing transmission of bevel gear, has reduced the number of former driving link, and simple structure is applicable to actuating mechanism's end more.
Drawings
Fig. 1 is a schematic diagram of a multiple synchronous motion electric cylinder in an embodiment of the present invention;
fig. 2 is a schematic diagram of another multiple-connected synchronous motion electric cylinder.
Reference numerals: the connecting seat 1, the motor 2, the drive bevel gear 3, the first screw rod 4, the second screw rod 5, the third screw rod 6, the first driven bevel gear 7, the second driven bevel gear 8, the third driven bevel gear 9, the first cylinder 10, the second cylinder 11, the third cylinder 12, the fourth screw rod 13, the fifth screw rod 14, the fourth driven bevel gear 15 and the fifth driven bevel gear 16.
Detailed Description
The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
Compared with the existing electric cylinders, the multi-connected synchronous movement electric cylinders shown in fig. 1-2 do not need to increase the number of the electric cylinders when synchronous movement is needed. The output shaft of the motor of the multi-connected synchronous motion electric cylinder and the driving ends of the plurality of screw rods are both positioned in the connecting seat. The driving bevel gears on the output shafts are meshed with the driven gears, the positions of a plurality of telescopic ends of the electric cylinder are controlled by controlling one motor, and the plurality of telescopic ends of the electric cylinder move together through meshing transmission of the bevel gears. The deviation generated in the process of realizing motion synchronization by controlling a plurality of motors through software is avoided, and the position precision in the synchronous motion is improved.
As shown in fig. 1, the multi-connected synchronous motion electric cylinder comprises a connecting seat 1, a motor 2, a screw rod and a cylinder body. The motor 2 is fixedly arranged on the connecting seat 1. The output shaft of the motor 2 is connected with a driving bevel gear 3. The motor 2 can be a servo motor. By utilizing the characteristics of the servo motor, the position control precision of the electric cylinder is further improved, and the operation stability and the response speed are improved. The servo motor can be a direct current servo motor or an alternating current servo motor. The output shaft of the motor 2 and the drive bevel gear 3 can be connected in a key connection mode, so that the drive bevel gear 3 is convenient to install and maintain.
The lead screw is located inside the cylinder body. One end of the cylinder body is fixedly arranged on the connecting seat 1. The driving end of the screw rod is connected with a driven bevel gear. The screw rod comprises a vertical screw rod, and the axis of the vertical screw rod is perpendicular to the axis of the output shaft of the motor 2. The output shaft of the motor 2 and the driving ends of the lead screws are both positioned inside the connecting seat. The drive bevel gear 3 is engaged with a plurality of driven gears. The motor 2 drives the driving bevel gear 3 to rotate, drives the driven bevel gear to rotate, and drives the plurality of screw rods to synchronously rotate. The number of the screw rods can be selected from 2, 3, 4, 5, 6 and the like, and is preferably 2-5.
As shown in fig. 1, the lead screw further includes a parallel lead screw. The axis of the parallel screw rod is coincided with the axis of the output shaft of the motor. The driven bevel gear of the parallel screw rod is meshed with the driven bevel gear of the vertical screw rod. And a driven bevel gear of the vertical screw rod is meshed with the driving bevel gear. So set up, increased the ascending degree of freedom of motion of the output shaft direction that is on a parallel with the motor, the output torque of motor is through the transmission of the driven bevel gear of perpendicular lead screw, again through the driven bevel gear of parallel lead screw, on exporting parallel lead screw, further richened the flexible direction of the electronic jar of the synchronous motion that allies oneself with more.
As shown in fig. 2, in another multiple-unit synchronous motion electric cylinder, the lead screw has 4 vertical lead screws, and the included angle between the axes of the adjacent vertical lead screws is 90 degrees. The vertical lead screws comprise a first lead screw 4, a second lead screw 5, a fourth lead screw 13 and a fifth lead screw 14. The axis of the first screw rod 4 coincides with the axis of the second screw rod 5. The axis of the fourth screw 13 coincides with the axis of the fifth screw 14. The axis of the first screw rod 4 is vertical to the axis of the fourth screw rod 13. According to the arrangement, the vertical screw rod and the parallel screw rod form a three-dimensional coordinate system, when the motor is driven, the telescopic ends of the electric cylinders move simultaneously, so that simple movement is superimposed to form composite movement, and the position control of analog movement is facilitated.
The driving ends of the first screw rod 4, the second screw rod 5, the fourth screw rod 13 and the fifth screw rod 14 are respectively connected with a driven bevel gear I7, a driven bevel gear II 8, a driven bevel gear IV 15 and a driven bevel gear V16. The sizes of the first driven bevel gear 7, the second driven bevel gear 8, the fourth driven bevel gear 15 and the fifth driven bevel gear 16 are the same. The sizes of the driven bevel gears of the 4 vertical screw rods meshed with the driving bevel gear are the same, the transmission ratio in the bevel gear transmission process is fixed, the extension amount of the 4 extension ends of the multi-connection synchronous motion electric cylinder is kept consistent, and the electric cylinder is convenient to realize quick automatic centering when being applied to a positioning clamp.
As shown in fig. 1, the lead screws include a first lead screw 4, a second lead screw 5, and a third lead screw 6. The first screw rod 4 and the second screw rod 5 are vertical screw rods, and the third screw rod 6 is a parallel screw rod. The axis of the first screw rod 4 coincides with the axis of the second screw rod 5. The driven bevel gear I7 of the first screw rod 4 and the driven bevel gear II 8 of the second screw rod 5 are respectively meshed with the driving bevel gear 3. The driven bevel gear III 9 of the third screw 6 is meshed with the driven bevel gear I7 of the first screw 4. The first screw rod 4, the second screw rod 5 and the third screw rod 6 are respectively positioned in the first cylinder 10, the second cylinder 11 and the third cylinder 12.
According to the arrangement, when the multi-connected synchronous motion electric cylinder is applied to a manipulator, the first lead screw and the third lead screw of the electric cylinder are convenient to realize the function of automatic centering, the third lead screw is beneficial to realizing the function of clamping a workpiece from a positioning surface perpendicular to the workpiece, the positioning and clamping functions are controlled by one motor, the complexity of a control program is reduced, and the response time of an execution end mechanism is prolonged.
Wherein, the driven bevel gear I7 is the same as the driven bevel gear II 8. The third driven bevel gear 9 is the same as the driving bevel gear 3, so that the transmission precision is further improved, and the position precision is further controlled by a motor conveniently. The range of the transmission ratio of the driven bevel gear 7 and the driving bevel gear 3 can be selected to be 1-3.
The first driven bevel gear 7 is the same as the drive bevel gear 3, so that the transmission ratios between the first driven bevel gear 7 and the second driven bevel gear 8 and the drive bevel gear 3 are all 1, and the position precision in the transmission process is further ensured.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments can be provided in addition to the above embodiments. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like that are made within the spirit and principle of the present invention are within the scope of the present invention.
Claims (8)
1. A multi-connected synchronous motion electric cylinder is characterized by comprising a connecting seat, a motor, a screw rod and a cylinder body;
the motor is fixedly arranged on the connecting seat, and an output shaft of the motor is connected with a driving bevel gear;
the screw rod is positioned in the cylinder body, one end of the cylinder body is fixedly arranged on the connecting seat, the driving end of the screw rod is connected with a driven bevel gear, the screw rod comprises a vertical screw rod, and the axis of the vertical screw rod is vertical to the axis of an output shaft of the motor;
the output shaft of the motor and the driving ends of the lead screws are located inside the connecting seat, the driving bevel gear is meshed with the driven gears, and the motor drives the driving bevel gear to rotate to drive the driven bevel gear to rotate to drive the lead screws to synchronously rotate.
2. A multi-couple synchronous motion electric cylinder as defined in claim 1, wherein the lead screw further comprises a parallel lead screw, the axis of the parallel lead screw coincides with the axis of the output shaft of the motor, the driven bevel gear of the parallel lead screw is engaged with the driven bevel gear of the vertical lead screw, and the driven bevel gear of the vertical lead screw is engaged with the drive bevel gear.
3. A multi-couple synchronous movement electric cylinder as in claim 1 or 2, characterized in that the lead screw has 4 vertical lead screws, and the included angle between the axes of the adjacent vertical lead screws is 90 degrees.
4. A multi-couple synchronous motion electric cylinder as in claim 3, wherein the driven bevel gears of the vertical screw rods are identical.
5. A multi-connected synchronous motion electric cylinder as claimed in claim 2, wherein the screw rods comprise a first screw rod, a second screw rod and a third screw rod, the first screw rod and the second screw rod are vertical screw rods, the third screw rod is a parallel screw rod, the axis of the first screw rod is coincident with the axis of the second screw rod, the driven bevel gear I of the first screw rod and the driven bevel gear II of the second screw rod are respectively engaged with the driving bevel gear, and the driven bevel gear III of the third screw rod is engaged with the driven bevel gear I of the first screw rod.
6. A multi-connected synchronous motion electric cylinder as in claim 5, characterized in that the driven bevel gear I is the same as the driven bevel gear II, and the driven bevel gear III is the same as the driving bevel gear.
7. A multi-gang synchronous motion electric cylinder as claimed in claim 6, wherein the driven bevel gear one is the same as the driving bevel gear.
8. A multi-connected synchronous motion electric cylinder as claimed in claim 1, wherein the motor is a servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022953758.0U CN213547290U (en) | 2020-12-08 | 2020-12-08 | Multi-connected synchronous motion electric cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022953758.0U CN213547290U (en) | 2020-12-08 | 2020-12-08 | Multi-connected synchronous motion electric cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN213547290U true CN213547290U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022953758.0U Active CN213547290U (en) | 2020-12-08 | 2020-12-08 | Multi-connected synchronous motion electric cylinder |
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| CN (1) | CN213547290U (en) |
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- 2020-12-08 CN CN202022953758.0U patent/CN213547290U/en active Active
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