阅读说明：本技术 一种可调间隙低磨损的驱动机构的驱动方法 (Driving method of driving mechanism with adjustable gap and low abrasion ) 是由 王群 于 2018-08-20 设计创作，主要内容包括：本发明属于驱动机构技术领域,尤其涉及一种可调间隙低磨损的驱动机构的驱动方法,它包括减速器、驱动电机、支撑板、输出转轴、限位杆、驱动齿轮、输入转轴,本发明设计的驱动机构运用于大型钣金厂,在对钣金进行打孔时控制钣金的移动平台使用,通过一个驱动电机可以控制该驱动机构的输出转轴实现间断转动；通过输出转轴的转动来控制板金的移动平台；使得钣金的移动平台带动钣金进行间断性移动；而且本发明中可以通过步进电机调节限位杆的位置；使得钣金上打出的孔中相邻的两个孔之间的间距保持不变；同时也可以控制步进电机使得限位杆的位置发生不断变化；通过不断改变限位杆的位置来使得钣金上孔的位置达到人们想要的效果。(The invention belongs to the technical field of driving mechanisms, and particularly relates to a driving method of a driving mechanism with adjustable clearance and low abrasion, which comprises a speed reducer, a driving motor, a supporting plate, an output rotating shaft, a limiting rod, a driving gear and an input rotating shaft, wherein the driving mechanism designed by the invention is applied to a large-scale sheet metal factory, a moving platform of a sheet metal is controlled to be used when punching is carried out on the sheet metal, and the output rotating shaft of the driving mechanism can be controlled to realize intermittent rotation through one driving motor; the movable platform of the sheet metal is controlled by the rotation of the output rotating shaft; the moving platform of the metal plate drives the metal plate to move discontinuously; in addition, the position of the limiting rod can be adjusted through the stepping motor; the distance between two adjacent holes in the holes punched on the metal plate is kept unchanged; meanwhile, the stepping motor can be controlled to enable the position of the limiting rod to be changed continuously; the position of the limiting rod is constantly changed to enable the position of the hole in the metal plate to achieve the effect required by people.)

1. A driving method of a driving mechanism with adjustable clearance and low abrasion is characterized in that: the device comprises a speed reducer, a first support, a driving motor, a motor support, a support plate, an installation shell, an output rotating shaft, a limiting rod, a driving gear, a first swing rod, a crank, an input rotating shaft, a second support, a first rotating shaft, an output hole, an input hole, an annular guide groove, a driving block, a first gear, a first rotating wheel, a second rotating shaft, an arc transition plate, a telescopic rod, a first swing plate, a second swing plate, a first connecting rod, a first spring, an annular sleeve, a clamping plate, a rubber protrusion, a reset spring, a triggering block, a second connecting rod, a clamping block, a triggering groove, an avoidance groove, a second gear, a third rotating shaft, a clamping groove, a third support, a guide rod, an arc-shaped rack, a transmission gear, a stepping motor, a third gear and a fourth rotating shaft, wherein the driving motor is installed on the upper side of the support; the speed reducer is arranged on the upper side of the supporting plate through the first support; the input shaft of the speed reducer is connected with the output shaft of the driving motor; an input hole is formed in one side face of the mounting shell, an output hole is formed in the other side face of the mounting shell, and an annular guide groove is formed in one side face of the mounting shell, in which the output hole is formed; the mounting shell is mounted on the upper side of the supporting plate; the input rotating shaft is arranged on the mounting shell through an input hole formed in the mounting shell, and one end, located outside the mounting shell, of the input rotating shaft is connected with an output shaft of the speed reducer; one end of the crank is arranged at one end of the input rotating shaft, which is positioned in the mounting shell; one end of the first swing rod is connected with the other end of the crank through a revolute pair; the first swinging plate is provided with an annular sleeve; one end of the first rotating shaft is arranged on the side surface of the mounting shell, which is provided with the input hole, the first swinging plate is arranged on the first rotating shaft through an annular sleeve, and one end of the first swinging plate is connected with the other end of the first swinging rod through a revolute pair; the other end of the first swinging plate is provided with a telescopic rod, and the inner side of the telescopic rod is provided with a first spring; one end, not opened, of the telescopic outer sleeve of the telescopic rod is arranged on the first swinging plate, one end of the first spring is arranged on the bottom surface of the telescopic outer sleeve of the telescopic rod, and the other end of the first spring is arranged on the telescopic inner rod of the telescopic rod; the driving block is arranged on the upper side of the telescopic inner rod of the telescopic rod; the second support is arranged on the inner side of the mounting shell; one end of the third rotating shaft is arranged in a circular hole at one side of the second support through a bearing; the driving gear is arranged at one end of the third rotating shaft through a one-way clutch; the second swinging plate is provided with an annular shaft sleeve, the second swinging plate is arranged on the third rotating shaft through the annular shaft sleeve, and one end of the second swinging plate is provided with an avoidance groove; the clamping plate is arranged on one side of the second swinging plate; one end of the arc-shaped transition plate is provided with a trigger groove, and the other end of the arc-shaped transition plate is provided with a rubber bulge; the arc-shaped transition plate is arranged on one side of the clamping plate, is positioned on the outer side of the driving gear and is matched with the driving gear; the second gear is arranged at the other end of the third rotating shaft; the output rotating shaft is arranged on the mounting shell through an output hole formed in the mounting shell, the first gear is arranged on the output rotating shaft, and the first gear is positioned on the inner side of the mounting shell; the first gear is meshed with the second gear; the second rotating shaft is arranged on the other side of the second support; the outer circle surface of the first rotating wheel is provided with a clamping groove, and the first rotating wheel is provided with a ring of teeth; the first rotating wheel is arranged on the second rotating shaft; one end of the second connecting rod is provided with a trigger block, and the trigger block is provided with an inclined plane; the second connecting rod is arranged on the second swinging plate through the matching of the second connecting rod and an avoidance groove formed on the second swinging plate, and the trigger block is matched with the trigger groove formed on the arc-shaped transition plate; the trigger block is matched with the driving block; a return spring is arranged between the second connecting rod and the top surface of the avoidance groove; one end of the first connecting rod is arranged at the other end of the second connecting rod; the clamping block is arranged at the other end of the first connecting rod; the clamping block is matched with a clamping groove formed in the first rotating wheel; the stepping motor is arranged on the inner side of the mounting shell; the transmission gear is arranged on an output shaft of the stepping motor, one side of the arc-shaped rack is provided with a limiting rod, and the other side of the arc-shaped rack is symmetrically provided with two guide rods; the arc rack is arranged in the mounting shell through the matching of the two guide rods and the arc guide groove formed in the mounting shell, and the arc rack is meshed with the transmission gear; the fourth rotating shaft is arranged on the lower side of the second support through a third support, and the third gear is arranged on the fourth rotating shaft; the third gear is meshed with the transmission gear; the third gear is meshed with the teeth on the first rotating wheel;

the first spring is always in a tensioned state; the side of the arc-shaped transition plate, which is not provided with the clamping plate, is provided with an inclined plane;

in the process of punching large-scale sheet metal, when people use the driving mechanism designed by the invention to drive a moving platform of the sheet metal, if the distance between adjacent holes is kept the same, the position of the limiting rod 8 is adjusted by the stepping motor 44, so that the distance between the punched hole and the adjacent hole is kept consistent under the action of the limiting rod 8; then driving the driving motor 3 to make the driving motor 3 work; the driving motor 3 drives the input rotating shaft 12 to rotate through the speed reducer 1; the input rotating shaft 12 rotates to drive the crank 11 to rotate around the input rotating shaft 12; the crank 11 rotates to drive the first swing rod 10 to swing; the first swing link 10 swings to drive the first swing plate 24 to swing around the first rotating shaft 14; the first swinging plate 24 swings to drive the telescopic rod 23 to swing; the telescopic rod 23 swings to drive the driving block 18 to swing; the output rotating shaft 7 is intermittently rotated by the reciprocating swing of the driving block 18; and the discontinuous rotation of the output rotating shaft 7 keeps a same amplitude state; the movable platform of the sheet metal is controlled by the rotation of the output rotating shaft 7; the moving platform of the metal plate drives the metal plate to perform same-amplitude intermittent movement; further keeping the same distance between adjacent holes in the holes punched on the metal plate; when people want to enable the position of the hole on the metal plate to keep the amplitude wanted by people, the stepping motor 44 is controlled to continuously change the position of the limiting rod 8 while the driving motor 3 is controlled to work; the position of the hole in the metal plate can achieve the effect desired by people by continuously changing the position of the limiting rod 8, and the distance between the holes can be continuously adjusted within a certain range by adjusting the stepping motor; meanwhile, the rotating speed of the driving motor is controlled to be unchanged, so that the swinging frequency of the first swinging plate is ensured to be the same every time, namely the punching frequency is fixed, and the time required by normal punching is ensured; in practical use, the driving mechanism is suitable for customizing a tool for punching a large batch of interval hole metal plates.

2. The method for driving an adjustable gap low wear drive mechanism of claim 1, wherein: the first spring is an extension spring; the return spring is an extension spring.

3. The method for driving an adjustable gap low wear drive mechanism of claim 1, wherein: the inclined angle of the inclined plane on the trigger block is 45 degrees.

4. The method for driving an adjustable gap low wear drive mechanism of claim 1, wherein: the inclined angle of the inclined plane on the arc transition plate is 60 degrees.

5. The method for driving an adjustable gap low wear drive mechanism of claim 1, wherein: the alternative scheme of the rubber bulge is that a square groove is formed on the arc-shaped transition plate, and one end of the limiting block is arranged in the square groove formed on the arc-shaped transition plate; and a spring is arranged between the limiting block and the bottom side surface of the square groove.

Technical Field

The invention belongs to the technical field of driving mechanisms, and particularly relates to a driving method of a driving mechanism with adjustable clearance and low abrasion.

Background

When punching a metal plate in a large-scale metal plate factory at present, firstly a motor is needed to control a drill bit to punch the metal plate, and meanwhile, a moving platform of the motor to control the metal plate is needed to realize transverse movement of the moving platform of the metal plate; but due to the perforation, the adjacent holes cannot be communicated with each other; i.e. the movement of the mobile platform is not continuous; namely, the movement of the mobile platform needs to be discontinuously moved, and at the moment, a motor of the mobile platform needs to be controlled to realize discontinuous rotation; but the general motor is difficult to realize discontinuous work; the realization of the intermittent work is realized by controlling the intermittent electrification and outage of the motor, so that the loss of the motor is increased; the service life of the motor is reduced; therefore, it is necessary to design a driving platform of the driving mechanism which can realize intermittent output rotation when the motor is in a continuous working state.

The invention designs a driving method of a driving mechanism with adjustable clearance and low abrasion, which solves the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a driving method of a driving mechanism with adjustable clearance and low abrasion, which is realized by adopting the following technical scheme.

A driving method of a driving mechanism with adjustable clearance and low abrasion is characterized in that: the device comprises a speed reducer, a first support, a driving motor, a motor support, a support plate, an installation shell, an output rotating shaft, a limiting rod, a driving gear, a first swing rod, a crank, an input rotating shaft, a second support, a first rotating shaft, an output hole, an input hole, an annular guide groove, a driving block, a first gear, a first rotating wheel, a second rotating shaft, an arc transition plate, a telescopic rod, a first swing plate, a second swing plate, a first connecting rod, a first spring, an annular sleeve, a clamping plate, a rubber protrusion, a reset spring, a triggering block, a second connecting rod, a clamping block, a triggering groove, an avoidance groove, a second gear, a third rotating shaft, a clamping groove, a third support, a guide rod, an arc-shaped rack, a transmission gear, a stepping motor, a third gear and a fourth rotating shaft, wherein the driving motor is installed on the upper side of the support; the speed reducer is arranged on the upper side of the supporting plate through the first support; the input shaft of the speed reducer is connected with the output shaft of the driving motor; an input hole is formed in one side face of the mounting shell, an output hole is formed in the other side face of the mounting shell, and an annular guide groove is formed in one side face of the mounting shell, in which the output hole is formed; the mounting shell is mounted on the upper side of the supporting plate; the input rotating shaft is arranged on the mounting shell through an input hole formed in the mounting shell, and one end, located outside the mounting shell, of the input rotating shaft is connected with an output shaft of the speed reducer; one end of the crank is arranged at one end of the input rotating shaft, which is positioned in the mounting shell; one end of the first swing rod is connected with the other end of the crank through a revolute pair; the first swinging plate is provided with an annular sleeve; one end of the first rotating shaft is arranged on the side surface of the mounting shell, which is provided with the input hole, the first swinging plate is arranged on the first rotating shaft through an annular sleeve, and one end of the first swinging plate is connected with the other end of the first swinging rod through a revolute pair; the other end of the first swinging plate is provided with a telescopic rod, and the inner side of the telescopic rod is provided with a first spring; one end, not opened, of the telescopic outer sleeve of the telescopic rod is arranged on the first swinging plate, one end of the first spring is arranged on the bottom surface of the telescopic outer sleeve of the telescopic rod, and the other end of the first spring is arranged on the telescopic inner rod of the telescopic rod; the driving block is arranged on the upper side of the telescopic inner rod of the telescopic rod; the second support is arranged on the inner side of the mounting shell; one end of the third rotating shaft is arranged in a circular hole at one side of the second support through a bearing; the driving gear is arranged at one end of the third rotating shaft through a one-way clutch; the second swinging plate is provided with an annular shaft sleeve, the second swinging plate is arranged on the third rotating shaft through the annular shaft sleeve, and one end of the second swinging plate is provided with an avoidance groove; the clamping plate is arranged on one side of the second swinging plate; one end of the arc-shaped transition plate is provided with a trigger groove, and the other end of the arc-shaped trigger plate is provided with a rubber bulge; the arc-shaped transition plate is arranged on one side of the clamping plate, is positioned on the outer side of the driving gear and is matched with the driving gear; the second gear is arranged at the other end of the third rotating shaft; the output rotating shaft is arranged on the mounting shell through an output hole formed in the mounting shell, the first gear is arranged on the output rotating shaft, and the first gear is positioned on the inner side of the mounting shell; the first gear is meshed with the second gear; the second rotating shaft is arranged on the other side of the second support; the outer circle surface of the first rotating wheel is provided with a clamping groove, and the first rotating wheel is provided with a ring of teeth; the first rotating wheel is arranged on the second rotating shaft; one end of the second connecting rod is provided with a trigger block, and the trigger block is provided with an inclined plane; the second connecting rod is arranged on the second swinging plate through the matching of the second connecting rod and an avoidance groove formed on the second swinging plate, and the trigger block is matched with the trigger groove formed on the arc-shaped transition plate; the trigger block is matched with the driving block; a return spring is arranged between the second connecting rod and the top surface of the avoidance groove; one end of the first connecting rod is arranged at the other end of the second connecting rod; the clamping block is arranged at the other end of the first connecting rod; the clamping block is matched with a clamping groove formed in the first rotating wheel; the stepping motor is arranged on the inner side of the mounting shell; the transmission gear is arranged on an output shaft of the stepping motor, one side of the arc-shaped rack is provided with a limiting rod, and the other side of the arc-shaped rack is symmetrically provided with two guide rods; the arc rack is arranged in the mounting shell through the matching of the two guide rods and the arc guide groove formed in the mounting shell, and the arc rack is meshed with the transmission gear; the fourth rotating shaft is arranged on the lower side of the second support through a third support, and the third gear is arranged on the fourth rotating shaft; the third gear is meshed with the transmission gear; the third gear is meshed with the teeth on the first rotating wheel.

The first spring is always in a tensioned state; the side of the arc-shaped transition plate, which is not provided with the clamping plate, is provided with an inclined plane.

As a further improvement of the present technology, the first spring is an extension spring; the return spring is an extension spring.

As a further improvement of the present technology, the inclined angle of the inclined surface on the trigger block is 45 degrees.

As a further improvement of the technology, the inclined angle of the inclined plane on the arc transition plate is 60 degrees.

As a further improvement of the technology, the above alternative scheme as the rubber protrusion is that a square groove is formed on the arc-shaped transition plate, and one end of the limiting block is installed in the square groove formed on the arc-shaped transition plate; and a spring is arranged between the limiting block and the bottom side surface of the square groove.

When the driving motor works, the driving motor can drive the input rotating shaft to rotate through the speed reducer; the input rotating shaft rotates to drive the crank arranged on the input rotating shaft to rotate around the input rotating shaft; the crank rotates to drive a first swing rod connected with the crank through a revolute pair to swing; the first swing rod swings to drive a first swing plate connected with the first swing rod through a revolute pair to swing around a first rotating shaft; the first swinging plate swings to drive the telescopic rod arranged on the first swinging plate to swing; the telescopic rod swings to drive the driving block arranged on the telescopic rod to swing; because the first spring is always in a tensioned state, when the driving block arranged on the telescopic inner rod of the telescopic rod is contacted with the arc transition plate, the driving block and the arc transition plate are in a close fit state; when the driving block arranged on the telescopic inner rod of the telescopic rod is contacted with the driving gear, the driving block and the driving gear are in a tight meshing state.

When the driving block is positioned on the arc-shaped transition plate and between the rubber protrusion and the clamping plate and swings towards one side provided with the rubber protrusion, the driving block can drive the arc-shaped transition plate to swing under the action of the rubber protrusion; the arc-shaped transition plate drives the second swinging plate to swing around the third rotating shaft through the clamping plate; the second swinging plate drives a second connecting rod, a first connecting rod and a clamping block which are arranged on the second swinging plate to swing around a third rotating shaft; when the second swinging plate is contacted with a limiting rod arranged on the arc-shaped rack in the swinging process, the second swinging plate can be clamped, in this state, the second swinging plate is in a static state, the second connecting rod, the first connecting rod and the clamping block are in a static state, and the clamping plate and the arc-shaped transition plate are in a static state; but the driving block can continuously swing towards one side provided with the rubber protrusion under the driving of the driving motor; the rubber protrusion is arranged on the arc-shaped transition plate, the arc-shaped transition plate is in a static state, namely the rubber protrusion is in a static state, the driving block can extrude the rubber protrusion at the moment, and then the rubber protrusion is beyond the rubber protrusion to continuously swing; when the driving block is meshed with the driving gear in the swinging process, the driving gear is driven to rotate by the swinging of the driving block; the driving gear rotates to drive the third rotating shaft to rotate; at the moment, the second swinging plate is blocked by the limiting rod; the rotation of the third rotating shaft does not affect the second swinging plate; when the second swinging plate is clamped by the limiting rod, a clamping block arranged on the second swinging plate through the second connecting rod and the first connecting rod just swings to be matched with the clamping groove on the first rotating wheel; after the driving block releases pressure on the trigger block, the second connecting rod, the first connecting rod and the clamping block are pulled up under the action of the return spring, so that the clamping block is in contact fit with a clamping groove on the first rotating wheel, the first rotating wheel clamps the clamping block through the clamping groove, and the first rotating wheel plays a limiting role on the clamping block; when the third rotating shaft rotates, the third rotating shaft can drive the second gear to rotate; the second gear rotates to drive the first gear meshed with the second gear to rotate; the first gear rotates to drive the output rotating shaft to rotate. Because the first swing rod, the crank and the first swing plate form the crank-rocker, when the driving block swings to the maximum angle in the swinging process, the driving motor can drive the driving block to reversely swing towards the opposite direction through the speed reducer, the first swing rod, the crank, the first swing plate and the telescopic rod; the driving block can drive the driving gear to rotate reversely when rotating reversely; since the driving gear is mounted on the third rotating shaft through a one-way clutch; therefore, the reverse rotation of the driving gear can not drive the third rotating shaft to rotate, and the third rotating shaft is in a static state because the output rotating shaft is in a static state under the action of load; the load here is the friction of the movement of the moving platform of the sheet metal. When the driving block swings reversely to be in contact with the arc-shaped transition plate, the driving block can swing to the upper side of the arc-shaped transition plate under the action of first spring elasticity, and when the driving block is in contact with the rubber protrusion in the swinging process of the driving block on the upper side of the arc-shaped transition plate, the clamping plate, the second connecting rod, the first connecting rod and the clamping block are in a static state under the limiting action of the first rotating wheel; the driving block presses the rubber protrusion and then passes over the rubber protrusion; when the driving block passes over the rubber protrusion to be in contact with the trigger block, the trigger block moves towards the inner side of the trigger groove under the action of the extrusion force of the driving block under the action of the upper inclined plane of the trigger block; the trigger block moves to drive the second connecting rod, the first connecting rod and the clamping block to move, and finally the clamping block is separated from the clamping groove on the first rotating wheel; the first rotating wheel loses the constraint on the clamping block, namely the first rotating wheel loses the limit on the clamping plate and the arc-shaped transition plate, and when the first rotating wheel loses the limit on the clamping plate and the arc-shaped transition plate, the driving block continuously swings to drive the arc-shaped transition plate, the second swinging plate, the second connecting rod, the first connecting rod and the clamping block to swing together around the third rotating shaft through the clamping plate; so that the second swinging plate is separated from the limiting rod; when the driving block swings to the maximum angle in the reverse swinging process, the driving motor can drive the driving block to swing towards one side provided with the rubber protrusion again through the speed reducer, the first swinging rod, the crank, the first swinging plate and the telescopic rod under the action of the crank rocker. In the process of the repeated swing of the driving block, the third rotating shaft can rotate discontinuously, namely, the output rotating shaft can rotate discontinuously.

The invention controls the stepping motor to drive the transmission gear to rotate; on one hand, the transmission gear rotates to drive the arc-shaped rack to swing; the arc-shaped rack swings to drive the limiting rod arranged on the arc-shaped rack to swing; on the other hand, the transmission gear rotates to drive a third gear meshed with the transmission gear to rotate; the third gear rotates to drive the first rotating wheel to rotate; the relative position of the clamping groove on the first rotating wheel and the clamping block is changed, and the clamping groove and the limiting rod are always in a matched state through the matching of the arc-shaped rack, the fourth gear and the transmission gear; the position relation of the arc-shaped transition plate and the driving gear when the driving block starts to swing relative to the arc-shaped transition plate can be changed by adjusting the position of the limiting rod, namely, when the driving block swings in the positive direction, the driving block swings to the maximum angle, and the size of the angle which can be meshed and rotated between the front driving block and the driving gear is changed; the angle of each rotation of the third rotating shaft, namely the rotation angle of the output rotating shaft can be changed by adjusting the position of the limiting rod; the position of the limiting rod can be adjusted at one time through the stepping motor, and then the output rotating shaft is enabled to rotate discontinuously to keep a state of the same amplitude; meanwhile, the position of the limiting rod can be controlled to be changed continuously by the stepping motor, so that the frequency required by people can be achieved by the discontinuous rotation of the output rotating shaft.

Compared with the traditional driving mechanism technology, the driving mechanism designed by the invention is applied to large-scale sheet metal factories, the moving platform of the sheet metal is controlled to be used when punching is carried out on the sheet metal, and the output rotating shaft of the driving mechanism can be controlled to realize discontinuous rotation through one driving motor; the movable platform of the sheet metal is controlled by the rotation of the output rotating shaft; the moving platform of the metal plate drives the metal plate to move discontinuously; in addition, the position of the limiting rod can be adjusted through the stepping motor, the discontinuous rotation amplitude of the output rotating shaft is changed, and after the position of the limiting rod is adjusted, the clearance motion can keep a state with the same amplitude; namely, the moving platform of the metal plate keeps moving with the same amplitude; namely, the distance between two adjacent holes in the holes punched on the metal plate is kept unchanged; meanwhile, the stepping motor can be controlled to enable the position of the limiting rod to be changed continuously; the position of the limiting rod is constantly changed to enable the position of the hole in the metal plate to achieve the effect required by people.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a plan view showing the distribution of the internal structure of the mounting case.

Fig. 4 is a schematic distribution diagram of the internal structure of the mounting shell.

Fig. 5 is a schematic view of the installation of the internal structure of the installation case.

Fig. 6 is a schematic view of the structure of the mounting case.

Fig. 7 is a schematic view of a drive gear arrangement.

Fig. 8 is a drive block mounting schematic.

Fig. 9 is a third gear mounting schematic.

Fig. 10 is a schematic view of the telescoping pole installation.

FIG. 11 is a schematic view of the engagement of the drive block and the arcuate transition plate.

Fig. 12 is a schematic view of an arcuate transition plate installation.

Fig. 13 is a schematic view of the return spring installation.

FIG. 14 is a first connecting rod installation schematic.

Fig. 15 is a schematic view of trigger block installation.

Fig. 16 is a schematic view of an arc-shaped transition plate structure.

Fig. 17 is a cartridge mounting diagram.

Fig. 18 is a first gear mounting schematic.

Fig. 19 is a schematic view of a first wheel structure.

Fig. 20 is a schematic view of an arcuate rack mount.

Number designation in the figures: 1. a speed reducer; 2. a first support; 3. a drive motor; 4. supporting a motor; 5. a support plate; 6. mounting a shell; 7. an output shaft; 8. a limiting rod; 9. a drive gear; 10. a first swing link; 11. a crank; 12. an input shaft; 13. a second support; 14. a first rotating shaft; 15. an output aperture; 16. an input aperture; 17. an annular guide groove; 18. a drive block; 19. a first gear; 20. a first runner; 21. a second rotating shaft; 22. an arc-shaped transition plate; 23. a telescopic rod; 24. a first swing plate; 25. a second swing plate; 26. a first connecting rod; 27. a first spring; 28. an annular sleeve; 29. clamping a plate; 30. a rubber protrusion; 31. a return spring; 32. a trigger block; 33. a second connecting rod; 34. a clamping block; 35. a trigger slot; 36. an avoidance groove; 37. a second gear; 38. a third rotating shaft; 39. a card slot; 40. a third support; 41. a guide bar; 42. an arc-shaped rack; 43. a transmission gear; 44. a stepping motor; 45. a third gear; 46. and a fourth rotating shaft.

Detailed Description

As shown in fig. 1 and 2, the device comprises a speed reducer 1, a first support 2, a driving motor 3, a motor support 4, a support plate 5, a mounting shell 6, an output rotating shaft 7, a limiting rod 8, a driving gear 9, a first swing link 10, a crank 11, an input rotating shaft 12, a second support 13, a first rotating shaft 14, an output hole 15, an input hole 16, an annular guide groove 17, a driving block 18, a first gear 19, a first rotating wheel 20, a second rotating shaft 21, an arc transition plate 22, an expansion rod 23, a first swing plate 24, a second swing plate 25, a first connecting rod 26, a first spring 27, an annular sleeve 28, a clamping plate 29, a rubber protrusion 30, a return spring 31, a triggering block 32, a second connecting rod 33, a clamping block 34, a triggering groove 35, an avoiding groove 36, a second gear 37, a third rotating shaft 38, a clamping groove 39, a third support 40, a guide rod 41, an arc rack 42, a transmission gear 43, a stepping motor 44, a stepping, A third gear 45, a fourth rotating shaft 46, wherein the driving motor 3 is installed on the upper side of the supporting plate 5 through the motor support 4 as shown in fig. 1; the speed reducer 1 is arranged on the upper side of the support plate 5 through the first support 2; an input shaft of the speed reducer 1 is connected with an output shaft of the driving motor 3; as shown in fig. 6, an input hole 16 is formed on one side surface of the mounting shell 6, an output hole 15 is formed on the other side surface of the mounting shell 6, and an annular guide groove 17 is formed on one side surface of the mounting shell 6 in which the output hole 15 is formed; as shown in fig. 1, the mounting case 6 is mounted on the upper side of the support plate 5; as shown in fig. 4 and 5, the input rotating shaft 12 is mounted on the mounting shell 6 through an input hole 16 formed in the mounting shell 6, and one end of the input rotating shaft 12 located outside the mounting shell 6 is connected to the output shaft of the reducer 1; as shown in fig. 10, one end of the crank 11 is mounted on the input rotary shaft 12 at the end located in the mounting case 6; one end of the first swing rod 10 is connected with the other end of the crank 11 through a revolute pair; the first swing plate 24 has an annular collar 28 thereon; as shown in fig. 5 and 7, one end of the first rotating shaft 14 is mounted on the side surface of the mounting shell 6 in which the input hole 16 is formed, as shown in fig. 10, the first swinging plate 24 is mounted on the first rotating shaft 14 through the annular sleeve 28, and one end of the first swinging plate 24 is connected with the other end of the first swinging rod 10 through a revolute pair; as shown in fig. 11 and 12, the other end of the first swinging plate 24 is provided with the telescopic rod 23, and as shown in fig. 12, the inner side of the telescopic rod 23 is provided with a first spring 27; one end, not opened, of the telescopic outer sleeve of the telescopic rod 23 is installed on the first swinging plate 24, one end of the first spring 27 is installed on the bottom surface of the telescopic outer sleeve of the telescopic rod 23, and the other end of the first spring 27 is installed on the telescopic inner rod of the telescopic rod 23; the driving block 18 is arranged on the upper side of the telescopic inner rod of the telescopic rod 23; as shown in fig. 5 and 8, the second support 13 is mounted inside the mounting case 6; as shown in fig. 18, one end of the third rotating shaft 38 is mounted in a circular hole at one side of the second support 13 through a bearing; as shown in fig. 7, the drive gear 9 is mounted on one end of the third rotating shaft 38 through a one-way clutch; as shown in fig. 14, the second swing plate 25 has an annular boss thereon, and the second swing plate 25 is mounted on the third rotating shaft 38 via the annular boss, and as shown in fig. 16, an avoiding groove 36 is formed at one end of the second swing plate 25; as shown in fig. 15, a card plate 29 is mounted on one side of the second swinging plate 25; one end of the arc transition plate 22 is provided with a trigger groove 35, and the other end of the arc trigger plate is provided with a rubber protrusion 30; as shown in fig. 11, the arc transition plate 22 is installed on one side of the clamping plate 29, and the arc transition plate 22 is located on the outer side of the driving gear 9, as shown in fig. 3, the arc transition plate 22 is matched with the driving gear 9; as shown in fig. 18, the second gear 37 is mounted on the other end of the third rotating shaft 38; the output rotating shaft 7 is arranged on the mounting shell 6 through an output hole 15 formed in the mounting shell 6, a first gear 19 is arranged on the output rotating shaft 7, and the first gear 19 is positioned on the inner side of the mounting shell 6; the first gear 19 meshes with the second gear 37; the second rotating shaft 21 is installed at the other side of the second support 13; as shown in fig. 19, a locking groove 39 is formed on the outer circumferential surface of the first rotating wheel 20, and a ring of teeth are formed on the first rotating wheel 20; the first rotating wheel 20 is arranged on the second rotating shaft 21; as shown in fig. 17, one end of the second connecting rod 33 is provided with a trigger block 32, and the trigger block 32 is provided with an inclined surface; as shown in fig. 14, the second connecting rod 33 is mounted on the second swing plate 25 by engaging with an escape groove 36 formed on the second swing plate 25, and as shown in fig. 15, the trigger block 32 engages with a trigger groove 35 formed on the arc-shaped transition plate 22; as shown in fig. 13, the trigger block 32 cooperates with the drive block 18; as shown in fig. 14, a return spring 31 is installed between the second connecting rod 33 and the top surface of the escape groove 36; one end of the first connecting rod 26 is mounted on the other end of the second connecting rod 33; as shown in fig. 19, a latch 34 is mounted at the other end of the first connecting rod 26; the clamping block is matched with a clamping groove 39 formed in the first rotating wheel 20; as shown in fig. 5 and 20, the stepping motor 44 is mounted inside the mounting case 6; the transmission gear 43 is mounted on the output shaft of the stepping motor 44, as shown in fig. 9, one side of the arc-shaped rack 42 is mounted with the limiting rod 8, and the other side of the arc-shaped rack 42 is symmetrically mounted with two guide rods 41; the arc-shaped rack 42 is arranged in the mounting shell 6 through the matching of the two guide rods 41 and the arc-shaped guide groove formed in the mounting shell 6, and the arc-shaped rack 42 is meshed with the transmission gear 43; a fourth rotating shaft 46 is installed at the lower side of the second support 13 through the third support 40, and a third gear 45 is installed on the fourth rotating shaft 46; the third gear 45 is meshed with the transmission gear 43; the third gear 45 meshes with the teeth on the first pulley 20.

The first spring 27 is always under tension; the side of the arc-shaped transition plate 22 on which the clamping plate 29 is not mounted is provided with a bevel.

The first spring 27 is an extension spring; the return spring 31 is an extension spring.

The inclined plane of the trigger block 32 is inclined at an angle of 45 degrees.

The inclined plane of the arc-shaped transition plate 22 has an inclination angle of 60 degrees.

The alternative scheme of the rubber protrusion 30 is that a square groove is formed on the arc-shaped transition plate 22, and one end of the limiting block is installed in the square groove formed on the arc-shaped transition plate 22; and a spring is arranged between the limiting block and the bottom side surface of the square groove.

In summary, the following steps:

the beneficial effects of the design of the invention are as follows: the driving mechanism is applied to a large-scale sheet metal factory, a moving platform of a sheet metal is controlled to be used when the sheet metal is punched, and an output rotating shaft 7 of the driving mechanism can be controlled to realize intermittent rotation through one driving motor 3; the movable platform of the sheet metal is controlled by the rotation of the output rotating shaft 7; the moving platform of the metal plate drives the metal plate to move discontinuously; in addition, the position of the limiting rod 8 can be adjusted through the stepping motor 44, the discontinuous rotation amplitude of the output rotating shaft 7 is changed, and after the position of the limiting rod is adjusted, the clearance motion keeps the same amplitude state; namely, the moving platform of the metal plate keeps moving with the same amplitude; namely, the distance between two adjacent holes in the holes punched on the metal plate is kept unchanged; meanwhile, the stepping motor 44 can be controlled to enable the position of the limiting rod 8 to be changed continuously; the position of the hole on the metal plate can achieve the effect that people want by constantly changing the position of the limiting rod 8.

When the driving motor 3 works, the driving motor 3 can drive the input rotating shaft 12 to rotate through the speed reducer 1; the input rotating shaft 12 rotates to drive the crank 11 arranged on the input rotating shaft to rotate around the input rotating shaft 12; the crank 11 rotates to drive the first swing rod 10 connected with the crank through a revolute pair to swing; the first swing link 10 swings to drive a first swing plate 24 connected with the first swing link through a revolute pair to swing around a first rotating shaft 14; the first swinging plate 24 swings to drive the telescopic rod 23 arranged on the first swinging plate to swing; the telescopic rod 23 swings to drive the driving block 18 arranged on the telescopic rod to swing; since the first spring 27 is always in a tensioned state, when the driving block 18 mounted on the telescopic inner rod of the telescopic rod 23 is in contact with the arc-shaped transition plate 22, the driving block 18 and the arc-shaped transition plate 22 are in a close fit state; when the driving block 18 mounted on the telescopic inner rod of the telescopic rod 23 contacts with the driving gear 9, the driving block 18 is in a close engagement state with the driving gear 9.

In the invention, when the driving block 18 is positioned on the arc-shaped transition plate 22 and between the rubber protrusion 30 and the clamping plate 29, and the driving block 18 swings towards one side provided with the rubber protrusion 30, the driving block 18 can drive the arc-shaped transition plate 22 to swing under the action of the rubber protrusion 30; the arc-shaped transition plate 22 drives the second swinging plate 25 to swing around the third rotating shaft 38 through the clamping plate 29; the second swinging plate 25 drives the second connecting rod 33, the first connecting rod 26 and the latch 34 mounted thereon to swing around the third rotating shaft 38; when the second swinging plate 25 contacts with the limiting rod 8 arranged on the arc-shaped rack 42 in the swinging process, the second swinging plate 25 is clamped, in this state, the second swinging plate 25 is in a static state, the second connecting rod 33, the first connecting rod 26 and the clamping block 34 are in a static state, and the clamping plate 29 and the arc-shaped transition plate 22 are in a static state; but the driving block 18 continues to swing toward the side where the rubber protrusion 30 is installed by the driving motor 3; the rubber protrusion 30 is arranged on the arc-shaped transition plate 22, the arc-shaped transition plate 22 is in a static state, namely the rubber protrusion 30 is in a static state, namely the driving block 18 extrudes the rubber protrusion 30 at the moment, and then continuously swings beyond the rubber protrusion 30; when the driving block 18 is meshed with the driving gear 9 in the swinging process, the driving gear 9 is driven to rotate by the swinging of the driving block 18; the driving gear 9 rotates to drive the third rotating shaft 38 to rotate; at the moment, the second swinging plate 25 is blocked by the limiting rod 8; the rotation of the third rotating shaft 38 does not affect the second swinging plate 25; when the second swinging plate 25 is clamped by the limiting rod 8, the clamping block 34 which is arranged on the second swinging plate 25 through the second connecting rod 33 and the first connecting rod 26 just swings to be matched with the clamping groove 39 on the first rotating wheel 20; after the driving block releases the pressure on the trigger block, the second connecting rod 33, the first connecting rod 26 and the fixture block 34 are pulled up under the action of the return spring 31, so that the fixture block 34 is in contact fit with the clamping groove 39 on the first rotating wheel 20, the first rotating wheel 20 clamps the fixture block 34 through the clamping groove 39, and the first rotating wheel 20 limits the fixture block 34; when the third rotating shaft 38 rotates, the third rotating shaft 38 drives the second gear 37 to rotate; the second gear 37 rotates to drive the first gear 19 meshed with the second gear to rotate; the first gear 19 rotates to drive the output rotating shaft 7 to rotate. Because the first swing link 10, the crank 11 and the first swing plate 24 form a crank rocker, when the driving block 18 swings to the maximum angle in the swinging process, the driving motor 3 drives the driving block 18 to reversely swing in the opposite direction through the speed reducer 1, the first swing link 10, the crank 11, the first swing plate 24 and the telescopic rod 23; the driving block 18 rotates reversely to drive the driving gear 9 to rotate reversely; since the driving gear 9 is mounted on the third rotating shaft through a one-way clutch; therefore, the reverse rotation of the driving gear 9 does not drive the third rotating shaft 38 to rotate, and the third rotating shaft 38 is in a static state because the output rotating shaft 7 is in a static state under the action of load; the load here is the friction of the movement of the moving platform of the sheet metal. When the driving block 18 swings reversely to contact with the arc-shaped transition plate 22, the driving block 18 swings to the upper side of the arc-shaped transition plate 22 under the action of the elastic force of the first spring 27, and when the driving block 18 is in contact with the rubber protrusion 30 in the process of swinging on the upper side of the arc-shaped transition plate 22, the clamping plate 29, the second connecting rod 33, the first connecting rod 26 and the clamping block 34 are in a static state under the limiting action of the first rotating wheel 20; the driving block 18 presses the rubber protrusion 30 and then passes over the rubber protrusion 30; when the driving block 18 passes over the rubber protrusion 30 and contacts with the trigger block 32, the trigger block 32 will move towards the inner side of the trigger groove 35 under the extrusion force of the driving block 18 under the action of the upper inclined plane of the trigger block 32; the trigger block 32 moves to drive the second connecting rod 33, the first connecting rod 26 and the clamping block 34 to move, and finally the clamping block 34 is separated from the clamping groove 39 on the first rotating wheel 20; when the first rotating wheel 20 loses the constraint on the clamping block 34, that is, the first rotating wheel 20 loses the limit on the clamping plate 29 and the arc-shaped transition plate 22, and when the first rotating wheel 20 loses the limit on the clamping plate 29 and the arc-shaped transition plate 22, the driving block 18 continuously swings to drive the arc-shaped transition plate 22, the second swinging plate 25, the second connecting rod 33, the first connecting rod 26 and the clamping block 34 to swing together around the third rotating shaft 38 through the clamping plate 29; so that the second swing plate 25 is disengaged from the stopper rod 8; when the driving block 18 swings to the maximum angle in the reverse swing process, the driving motor 3 drives the driving block 18 to swing again towards the side where the rubber protrusion 30 is installed through the speed reducer 1, the first swing link 10, the crank 11, the first swing plate 24 and the telescopic rod 23 due to the action of the crank rocker. During the repeated oscillation of the driving block 18, the third rotating shaft 38, i.e., the output rotating shaft 7, may rotate intermittently.

In the invention, the stepping motor 44 is controlled to drive the transmission gear 43 to rotate by the stepping motor 44; the rotation of the transmission gear 43 drives the arc-shaped rack 42 to swing on one hand; the arc-shaped rack 42 swings to drive the limiting rod 8 arranged on the arc-shaped rack to swing; the rotation of the transmission gear 43 drives the third gear 45 meshed with the transmission gear to rotate; the third gear 45 rotates to drive the first rotating wheel 20 to rotate; the relative position between the clamping groove 39 on the first rotating wheel 20 and the clamping block 34 is changed, and the clamping groove 39 and the limiting rod 8 are always in a matched state through the matching of the arc-shaped rack 42, the fourth gear and the transmission gear 43, namely the relative position is kept unchanged; the position relation between the arc transition plate 22 and the driving gear 9 when the driving block 18 starts to swing relative to the arc transition plate 22 can be changed by adjusting the position of the limiting rod 8, namely, when the driving block 18 swings in the positive direction, the driving block 18 swings to the maximum angle, and the size of the angle which can be meshed and rotated between the driving block 18 and the driving gear 9 is changed; namely, the angle of each rotation of the third rotating shaft 38, namely the rotation angle of the output rotating shaft 7, can be changed by adjusting the position of the limiting rod 8; in the invention, the position of the limiting rod 8 can be adjusted at one time through the stepping motor 44, and then the intermittent rotation of the output rotating shaft 7 is kept in a same amplitude state; meanwhile, the position of the limiting rod 8 can be controlled by the stepping motor 44 to change continuously, so that the discontinuous rotation of the output rotating shaft 7 can reach a range desired by people.