Toggle device and centralized rotation driving method

Abstract

The invention discloses a toggle device and a centralized rotation driving method, wherein a toggle device comprises a linear electric cylinder, a slide plate, a plurality of toggle mechanisms and a plurality of rotation mechanisms, wherein the linear electric cylinder is fixedly mounted on a base plate, and an output end of the linear electric cylinder is connected to the slide plate, a plurality of toggle mechanisms are mounted on the slide plate, a plurality of rotation mechanisms are arranged one by one with the plurality of toggle mechanisms, a rotation shaft is arranged on the rotation mechanism, the rotation mechanism is connected to the base plate, the output end of the linear electric cylinder drives the slide plate to move, the slide plate drives the rotation shaft to rotate through the toggle mechanism, a driving part is arranged at the top end of the rotation shaft, and the driving part transmits torque through the rotation of the rotation shaft; the invention adopts a single power source to simultaneously drive a plurality of rotation mechanisms through a flexible transmission mechanism, and a solution of independently positioning each rotation mechanism is adopted to achieve the purpose of reducing the power source, while ensuring the rotation positioning accuracy of each rotation mechanism, and supporting mechanisms with different rotation angles to work simultaneously, with low cost and stable use effect.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment driving, and in particular to a toggle device and a centralized rotation driving method. Background Art

[0002] In an automated assembly production line, it is often necessary to drive a rotating mechanism in a workstation to rotate in order to achieve purposes such as connection and position alignment. In order to save operation time, multiple sets of rotating mechanisms need to rotate at the same time. Previously, two methods were generally used for such situations: Method 1, configure the same number of rotating power sources according to the number of rotating mechanisms to achieve independent drive of each mechanism; Method 2: Use a single power source to ensure the synchronous movement of each set of mechanisms by improving the transmission accuracy, thereby achieving the purpose of ensuring the rotation position accuracy. The above method 1 will inevitably increase costs due to the use of multiple sets of rotating power sources. The above method 2, the method of ensuring the rotation angle of each rotating mechanism by improving the transmission accuracy will increase the manufacturing difficulty, and the equipment maintenance will also be more difficult, and to a certain extent increase the manufacturing cost. Summary of the invention

[0003] The object of the present invention is to provide a toggle device and a centralized rotation driving method to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a toggle device, comprising:

[0005] A linear electric cylinder, wherein the linear electric cylinder is fixedly mounted on a base plate;

[0006] A slide plate, the output end of the linear electric cylinder is connected to the slide plate;

[0007] A plurality of toggle mechanisms, wherein a plurality of the toggle mechanisms are mounted on the slide;

[0008] Multiple rotating mechanisms, multiple toggle mechanisms are arranged one by one, the rotating mechanisms are provided with rotating shafts, the rotating shafts can rotate along the axis of the rotating shafts, the toggle mechanisms are connected to the rotating shafts, the rotating mechanisms are connected to the substrate, the output end of the linear electric cylinder drives the slide plate to move, the slide plate drives the rotating shaft to rotate through the toggle mechanisms, a driving part is arranged at the top end of the rotating shaft, and the driving part transmits torque through the rotation of the rotating shaft.

[0009] Furthermore, the toggle mechanism also includes:

[0010] A lever, the lever comprising a first lever end and a second lever end, the first lever end being hinged to the slide plate, and the second lever end being hinged to the rotating mechanism;

[0011] The elastic baffle comprises a fixed portion and an elastic portion, wherein the fixed portion is connected to the elastic portion, and the fixed portion is connected to the slide plate, and the elastic portion comprises a first elastic sheet and a second elastic sheet, wherein the first elastic sheet and the second elastic sheet are respectively fitted with two side surfaces of the lever.

[0012] Furthermore, the rotating mechanism also includes a base, the base is fixed on the substrate, the base is provided with a receiving cavity, the rotating shaft is arranged in the receiving cavity; the rotating shaft is provided with a rocker arm, and the second lever end is hinged to the rocker arm.

[0013] Furthermore, the base also includes two ears and two eccentric positioning pins, the two ears are connected to the base, the two eccentric positioning pins are respectively connected to the two ears, and the eccentric positioning pins are used to restrict the rotation range of the lever.

[0014] Furthermore, the eccentric locating pin is provided with an eccentric through hole, the axis of the eccentric through hole is parallel to the axis of the eccentric locating pin, and the eccentric locating pin is connected to the support ear by a bolt passing through the eccentric through hole.

[0015] Furthermore, the lever further comprises:

[0016] Sliding bearing, the first lever end is inlaid with a sliding bearing;

[0017] A gasket, the gasket being arranged between the lever and the slide plate;

[0018] A pin shaft, one end of which is connected to the first lever end through the sliding bearing, and the other end of which passes through the center hole of the gasket and is fixedly connected to the slide plate. The gasket is coaxial with the pin shaft, and the gasket and the pin shaft are slidably matched.

[0019] Furthermore, the lever further comprises:

[0020] A lever pin hole and a rotating shaft, wherein the lever pin hole and the rotating shaft are in transitional fit;

[0021] A rolling bearing, wherein the rolling bearing comprises an inner ring and an outer ring, wherein the inner ring is transitionally matched with the lower portion of the rotating shaft, the rocker arm is provided with an elongated hole, and the outer ring is arranged in the elongated hole;

[0022] A shaft sleeve, the shaft sleeve is arranged on the rotating shaft, and the shaft sleeve is arranged between the shifting rod and the rolling bearing;

[0023] The shaft nut is provided with an external thread on the upper part of the shaft, and the shaft nut is provided with an internal thread. The external thread and the internal thread are arranged correspondingly. The shaft nut is tightened with the shaft through the internal thread and the external thread to realize axial fixation of the shaft and the rolling bearing.

[0024] Furthermore, the base is provided with an outer edge, the outer edge is provided with two base positioning pin holes, the substrate is provided with substrate positioning pin holes corresponding to the base positioning pin holes, the base is positioned with the substrate by positioning pins passing through the base positioning pin holes and the substrate positioning pin holes, and the base and the substrate are connected by bolts.

[0025] Furthermore, a step and a base bearing are provided in the accommodating cavity, the lower part of the base bearing abuts against the step surface of the step, an elastic retaining ring for a hole is provided on the upper part of the base bearing, an annular groove is provided in the accommodating cavity, the elastic retaining ring is clamped in the annular groove and abuts against the base bearing, the rotating shaft is connected to the inner ring of the base bearing, the inner wall of the accommodating cavity abuts against the outer ring of the base bearing, a locking nut is provided at the lower part of the rotating shaft, and the rotating shaft and the locking nut are threadedly matched to fix the rotating shaft in the axial direction.

[0026] On the other hand, a centralized rotation driving method is provided, which is used to drive multiple rotating mechanisms through any of the above-mentioned toggle devices, comprising:

[0027] The rotation angles of the plurality of rotation mechanisms are respectively set according to the rotation angles required for the work;

[0028] A plurality of rotating mechanisms are driven simultaneously by a power source so that they rotate according to the respective set rotation angles;

[0029] By setting an elastic baffle between the toggle mechanism and the rotating mechanism, it is prevented that the driving system continues to operate after the rotating mechanism is in place, causing structural damage;

[0030] Each rotating mechanism achieves rotation repeatability accuracy through eccentric positioning pins;

[0031] Adjust the installation angle of the eccentric positioning pin to fine-tune the rotation angle of the rotating mechanism.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention adopts a single power source to simultaneously drive multiple sets of rotating mechanisms through a flexible transmission mechanism, and each rotating mechanism is independently positioned, thereby achieving the purpose of reducing the power source, while ensuring the rotational positioning accuracy of each rotating mechanism, and supporting mechanisms with different rotation angles to work simultaneously, with low cost and stable use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structural connection of a toggle device in an embodiment of the present invention;

[0034] Figure 2 It is a schematic diagram of the structural connection of the toggle mechanism in an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the structural connection of the rotating mechanism in an embodiment of the present invention;

[0036] Figure 4 It is a cross-sectional schematic diagram of a rotating mechanism in an embodiment of the present invention;

[0037] Figure 5 This is a schematic diagram of the eccentric positioning pin structure in an embodiment of the present invention;

[0038] Figure 6 Schematic diagram of an eccentric positioning pin limiting rocker arm in an embodiment of the present invention;

[0039] Figure 7 For the embodiment of the present invention Figure 1 The enlarged diagram of the structural connection of part A;

[0040] Figure 8 This is a flow chart of the centralized rotation driving method in an embodiment of the present invention;

[0041] In the figure: 100, linear cylinder; 200, slide plate; 300, toggle mechanism; 400, rotating mechanism; 500, base plate; 310, lever; 320, elastic baffle; 410, rotating shaft; 420, base; 311, first lever end; 312, second lever end; 313, sliding bearing; 314, gasket; 315, pin; 316, lever pin hole; 317, rotating shaft; 318, rolling bearing; 3 19. Bushing; 321. Fixing portion; 322. Elastic portion; 411. Driving portion; 412. Rocker arm; 413. Locking nut; 421. Support ear; 422. Eccentric positioning pin; 423. Outer edge; 424. Step; 425. Base bearing; 426. Circlip; 3171. Shaft nut; 3221. First spring piece; 3222. Second spring piece; 4111. Long hole; 4221. Eccentric through hole. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Please refer to the attached drawings of the specification, the present invention provides a technical solution: Figure 1 As shown, a toggle device includes:

[0046] A linear electric cylinder 100, wherein the linear electric cylinder 100 is fixedly mounted on a base plate 500;

[0047] A slide plate 200, to which the output end of the linear electric cylinder 100 is connected;

[0048] A plurality of toggle mechanisms 300, wherein a plurality of toggle mechanisms 300 are installed on the slide plate 200;

[0049] A plurality of rotating mechanisms 400 are provided in a one-to-one correspondence with the plurality of the toggle mechanisms 300. The rotating mechanisms 400 are provided with a rotating shaft 410. The rotating shaft 410 can rotate along the axis of the rotating shaft 410. The toggle mechanism 300 is connected to the rotating shaft 410. The rotating mechanism 400 is connected to the base plate 500. The output end of the linear electric cylinder 100 drives the slide plate 200 to move. The slide plate 200 drives the rotating shaft 410 to rotate through the toggle mechanism 300. A driving part 411 is provided at the top of the rotating shaft 410. The driving part 411 transmits torque through the rotation of the rotating shaft 410.

[0050] In the above embodiment, the present invention is applicable to a single power source, preferably a linear motor 100, the linear electric cylinder 100 is fixedly mounted on a base plate 500, a slide plate 200 is mounted on the output end of the linear electric cylinder 100, the two are connected by bolts, and a positioning pin is used to ensure the relative position is accurate, and a plurality of toggle mechanisms 300 are sequentially mounted on the slide plate, such as Figure 1 In this embodiment, three wave mechanisms 300 are selected, and the number of the toggle mechanisms 300 is determined according to the use requirements, and a plurality of rotating mechanisms 400 are provided corresponding to the toggle mechanisms 300 one by one; the linear electric cylinder 100 drives the slide plate 200 to move, and since a pin shaft 315 is provided at one end of the toggle mechanism 300, the pin shaft cooperates with the slide plate, and at the same time, a spring stopper 320 of the toggle mechanism is fixed on the slide plate, the toggle mechanism moves synchronously with the slide plate, and since the rolling bearings 318 of the three groups of toggle mechanisms are respectively in contact with the rocker arms 412 on the respective rotating shafts 410 of the corresponding rotating mechanisms, and since the bottom of the rotating shaft is installed on the base through the base bearing 425, etc., the rotating shaft rotates around its center, and the driving part 411 of the groove structure at the upper end of the rotating shaft can further output the rotational torque to realize the function of toggle the external structure to rotate; when a single power drags multiple rotating mechanisms to rotate, due to the influence of dimensional deviation caused by manufacturing and assembly, the rotation angle of each mechanism is difficult to control, and the present invention realizes each mechanism through the provision of elastic stopper 320 and eccentric positioning pin 422. The invention can be used for the rotation drive of the rotating connection mechanism between the battery and the vehicle body in the automatic battery replacement system of new energy electric vehicles, and may also be used in the occasions where the automated assembly line needs to rotate multiple rotating mechanisms at the same time and has high requirements for the rotation position accuracy. It can realize the simultaneous driving of multiple sets of rotating mechanisms by a single power source, and the rotation angles of each set of mechanisms do not have to be completely consistent according to the needs of use, and has the characteristics of high repeatability positioning accuracy, stability and reliability, and low cost; a single linear electric cylinder is used as the power source to simultaneously drive the rotation of multiple rotating mechanisms; an elastic baffle is set between the toggle mechanism and the rotating mechanism to prevent the driving system from continuing to operate after the rotating mechanism is in place to cause structural damage; each rotating mechanism achieves rotation repetition accuracy through an eccentric locating pin, which reduces the requirements for the stopping accuracy of the drive system; the rotation angle of the rotating mechanism can be fine-tuned by adjusting the installation angle of the eccentric locating pin after loosening the fastening bolt, which can eliminate the precision deviation caused by manufacturing and assembly and achieve high rotation position accuracy.

[0051] Alternatively, if Figure 2 As shown, the toggle mechanism 300 also includes:

[0052] A lever 310, the lever 310 comprising a first lever end 311 and a second lever end 312, the first lever end 311 being hinged to the slide plate 200, and the second lever end 312 being hinged to the rotating mechanism 400;

[0053] The elastic baffle 320 includes a fixed portion 321 and an elastic portion 322. The fixed portion 321 is connected to the elastic portion 322. The fixed portion 321 is connected to the skateboard 200. The elastic portion 322 has a first elastic piece 3221 and a second elastic piece 3222. The first elastic piece 3221 and the second elastic piece 3222 are respectively attached to the two side surfaces of the lever 310.

[0054] In the above embodiment, the toggle mechanism is hinged to the slide plate 200 and the rotating mechanism 400 respectively through the toggle rod, one end of the spring baffle 320 is fixed on the slide plate, and the first spring piece 3221 and the second spring piece 3222 at the other end are respectively fitted with the two side surfaces of the toggle rod, and the spring baffle is used to prevent the driving system from continuing to operate after the rotating mechanism is in place and causing structural damage; when the rocker arm of the rotating shaft contacts the eccentric positioning pin, the rotating shaft cannot continue to rotate, and thereafter the toggle mechanism and the slide plate continue to move a certain distance driven by the linear electric cylinder and then stop, the spring baffle is elastically deformed, and the toggle mechanism rotates, which can ensure that the mechanism is not damaged. At the same time, due to the elastic force of the elastic baffle, the rocker arm of the rotating shaft is always in contact with the eccentric positioning pin.

[0055] Alternatively, if Figure 3 and 4 As shown, the rotating mechanism 400 also includes a base 420, which is fixed on the substrate 500. The base 420 is provided with a receiving cavity, and the rotating shaft 410 is arranged in the receiving cavity; the rotating shaft 410 is provided with a rocker arm 412, and the second lever end 312 is hinged to the rocker arm 412.

[0056] Alternatively, if Figure 3 As shown, the base 420 also includes two ears 421 and two eccentric positioning pins 422. The two ears 421 are connected to the base 420, and the two eccentric positioning pins 422 are respectively connected to the two ears 421. The eccentric positioning pins 422 are used to restrict the rotation range of the lever 310.

[0057] In the above embodiment, the rotating mechanism is fixed on the base plate through a base, the base and the base plate are connected by bolts, and double locating pins are provided to ensure the relative position accuracy of the two; a base bearing is provided inside the base, the lower part of the base bearing is in contact with the step surface inside the base, and an elastic retaining ring for a hole is provided on the upper part of the bearing to fix the outer ring of the bearing, the lower part of the rotating shaft cooperates with the bearing, and axial fixation is achieved through a locking nut, a square groove is provided on the top of the rotating shaft as a driving part to transmit torque, and it can also be set to other structural forms according to usage needs, a rocker arm is provided in the middle of the rotating shaft, and a long hole is provided in the middle of the rocker arm, the spacing between the side walls of the hole is slightly larger than the diameter of the rolling bearing, and when the rotating shaft rotates in contact with the rolling bearing, the outer side of the rocker arm can contact with the eccentric locating pins on both sides to limit the rotation angle of the rotating shaft.

[0058] Alternatively, if Figure 5 As shown, the eccentric positioning pin 422 is provided with an eccentric through hole 4221 , the axis of the eccentric through hole 4221 is parallel to the axis of the eccentric positioning pin 422 , and the eccentric positioning pin 422 is connected to the support ear 421 by a bolt passing through the eccentric through hole 4221 .

[0059] In the above embodiment, when the rocker arm of the rotating shaft contacts the eccentric positioning pin or the eccentric positioning pin, the rotating shaft cannot continue to rotate. After that, the toggle mechanism and the slide plate continue to move a certain distance driven by the linear electric cylinder and then stop. The spring baffle plate undergoes elastic deformation, and the toggle mechanism rotates, which can ensure that the mechanism is not damaged. At the same time, due to the elastic force of the elastic baffle plate, the rocker arm of the rotating shaft is always in contact with the eccentric positioning pin. Figure 6 As shown, when the rotating shaft needs to rotate in the opposite direction, the linear electric cylinder moves in the opposite direction, and finally limits the rotation angle of the rotating shaft through the eccentric locating pin at the other end. In this way, the rotation angle of the rotating shaft is limited by the eccentric locating pin, and the eccentric locating pin is fixed on the base, so the optional repeat positioning accuracy of the rotating shaft can be ensured. The bottom of the eccentric locating pin slides with the base, and the corresponding fastening bolts are loosened or rotated. The stop position of the rocker arm of the rotating shaft can be slightly adjusted, thereby achieving fine adjustment of the rotation angle of the rotating mechanism to ensure the accuracy of the rotation angle. The bottom of the eccentric locating pin slides with the base, and the eccentric locating pin can rotate. At the same time, Figure 4 As shown, the eccentric locating pin is a hollow structure, and the fastening bolt is rotated through it and tightened with the base to achieve complete fixation of the eccentric locating pin.

[0060] Alternatively, if Figure 2 As shown, the lever 310 further includes:

[0061] A sliding bearing 313, wherein the first lever end 311 is inlaid with a sliding bearing 313;

[0062] A gasket 314, wherein the gasket 314 is disposed between the lever 310 and the slide plate 200;

[0063] A pin shaft 315, one end of which is connected to the first lever end 311 via the sliding bearing 313, and the other end of which passes through the center hole of the gasket 314 and is fixedly connected to the skateboard 200, the gasket 314 is coaxial with the pin shaft 315, and the gasket 314 and the pin shaft 315 are slidably matched.

[0064] Alternatively, if Figure 2 As shown, the lever 310 further includes:

[0065] A lever pin hole 316 and a rotating shaft 317, wherein the lever pin hole 316 and the rotating shaft 317 are in transitional fit;

[0066] A rolling bearing 318, wherein the rolling bearing 318 comprises an inner ring and an outer ring, wherein the inner ring is transitionally matched with the lower portion of the rotating shaft 317, and the rocker arm 412 is provided with an elongated hole 4111, and the outer ring is arranged in the elongated hole 4111;

[0067] A shaft sleeve 319, wherein the shaft sleeve 319 is sleeved on the rotating shaft 317, and the shaft sleeve 319 is disposed between the lever 310 and the rolling bearing 318;

[0068] The shaft nut 3171 is provided with an external thread on the upper part of the shaft 317, and the shaft nut 3171 is provided with an internal thread, the external thread and the internal thread are arranged correspondingly, and the shaft nut 3171 is tightened with the shaft 317 through the internal thread and the external thread to fix the shaft 317 and the rolling bearing 318 in the axial direction.

[0069] In the above embodiment, one end of the lever of the toggle mechanism is inlaid with a sliding bearing, which is hinged to one end of the pin shaft through the sliding bearing, and the other end of the pin shaft is fixed to the slide plate through a thread. A circular gasket is provided between the lever and the slide plate, the circular gasket is coaxial with the pin shaft, and slides with the pin shaft through a center hole. One end of the spring baffle is fixed to the slide plate, and two spring plates at the other end are respectively fitted with two side surfaces of the lever. A pin hole is provided at the end of the lever, and the rotating shaft and the lever pin hole are transitionally matched to ensure the relative position accuracy of the two. A thread is provided on the upper part of the rotating shaft, and a rolling bearing is installed on the lower part of the rotating shaft. The inner ring of the rolling bearing is transitionally matched with the rotating shaft, and the rolling bearing is separated from the lever by a sleeve. A square nut is provided on the threaded section on the upper part of the rotating shaft, and the axial fixation of the rotating shaft and the rolling bearing is achieved by tightening the square nut.

[0070] Alternatively, if Figure 3 and 4 As shown, the base 420 is provided with an outer edge 423, and the outer edge 423 is provided with two base positioning pin holes. The substrate 500 is provided with substrate positioning pin holes corresponding to the base positioning pin holes. The outer edge 423 is positioned with the substrate 500 by positioning pins passing through the base positioning pin holes and the substrate positioning pin holes, and the base 420 and the substrate 500 are screwed together by bolts passing through the outer edge 423.

[0071] Alternatively, if Figure 4As shown, a step 424 and a base bearing 425 are provided in the accommodating cavity, the lower part of the base bearing 425 abuts against the step surface of the step 424, an elastic retaining ring 426 for a hole is provided on the upper part of the base bearing 425, an annular groove is provided in the accommodating cavity, the elastic retaining ring 426 is clamped in the annular groove and abuts against the base bearing 425, the rotating shaft 410 is connected to the inner ring of the base bearing 425, the inner wall of the accommodating cavity abuts against the outer ring of the base bearing 425, and a locking nut 413 is provided at the lower part of the rotating shaft 410, and the rotating shaft 410 and the locking nut 413 are threadedly matched to fix the rotating shaft 410 in the axial direction.

[0072] On the other hand, Figure 8 As shown, a centralized rotation driving method is provided, which is used for any of the above-mentioned toggle devices to drive multiple rotating mechanisms 400, comprising the following steps:

[0073] S102, respectively setting the rotation angles of the plurality of rotating mechanisms 400 according to the rotation angles required for work;

[0074] S104, driving multiple rotating mechanisms 400 simultaneously through a power source, so that they rotate according to their respective set rotation angles;

[0075] S106, by providing an elastic baffle 320 between the toggle mechanism 300 and the rotating mechanism 400, the driving system is prevented from continuing to operate after the rotating mechanism 400 is in place, thereby preventing the structure from being damaged;

[0076] S108, each rotating mechanism 400 achieves rotation repeatability accuracy through the eccentric positioning pin 422;

[0077] S110 , adjusting the installation angle of the eccentric positioning pin 422 to fine-tune the rotation angle of the rotating mechanism 400 .

[0078] In the above embodiments, when a single power is used to drive multiple mechanisms to rotate, the rotation angle of each mechanism is difficult to control due to the influence of dimensional deviation caused by manufacturing and assembly. The present invention realizes the accuracy of the rotation angle of each rotating shaft by setting an elastic toggle mechanism and an eccentric positioning mechanism. The present invention is used for the rotation drive of the rotating connection mechanism between the battery and the body in the automatic battery replacement system of new energy electric vehicles. It may also be used in the occasion where the automated assembly line needs to toggle multiple rotating mechanisms to rotate at the same time and has high requirements for the rotation position accuracy. It can realize the simultaneous driving of multiple sets of rotating mechanisms by a single power source, and the rotation angle of each set of mechanisms does not have to be completely consistent according to the use needs. It has the characteristics of high repeatability positioning accuracy, stability and reliability, and low cost. With a single linear electric cylinder as the power source, it can simultaneously drive the rotation of multiple rotating mechanisms. By setting an elastic baffle between the toggle mechanism and the rotating mechanism, it is prevented that the drive system continues to operate after the rotating mechanism is in place to cause structural damage. Each rotating mechanism achieves rotation repeatability accuracy through an eccentric positioning pin, which reduces the requirements for the stopping accuracy of the drive system. By loosening the fastening bolts and adjusting the installation angle of the eccentric positioning pin, the rotation angle of the rotating mechanism can be fine-tuned, the precision deviation caused by manufacturing and assembly can be eliminated, and high rotation position accuracy can be achieved.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A toggle device, characterized in that: include: A linear electric cylinder (100), wherein the linear electric cylinder (100) is fixedly mounted on a base plate (500); A slide plate (200), the output end of the linear electric cylinder (100) being connected to the slide plate (200); A plurality of toggle mechanisms (300), wherein the slide plate (200) is equipped with a plurality of the toggle mechanisms (300); A plurality of rotating mechanisms (400), wherein the plurality of the toggle mechanisms (300) are provided with the plurality of rotating mechanisms (400) in a one-to-one correspondence, wherein the rotating mechanism (400) is provided with a rotating shaft (410), wherein the rotating shaft (410) rotates along the axis of the rotating shaft (410), wherein the toggle mechanism (300) is connected to the rotating shaft (410), wherein the rotating mechanism (400) is connected to the base plate (500), wherein the output end of the linear electric cylinder (100) drives the slide plate (200) to move, wherein the slide plate (200) drives the rotating shaft (410) to rotate through the toggle mechanism (300), wherein a driving part (411) is provided at the top end of the rotating shaft (410), wherein the driving part (411) transmits torque through the rotation of the rotating shaft (410); The toggle mechanism (300) further comprises a toggle rod (310) and an elastic blocking piece (320); the toggle rod (310) comprises a first toggle rod end (311) and a second toggle rod end (312); the first toggle rod end (311) is hinged to the slide plate (200); the second toggle rod end (312) is hinged to the rotating mechanism (400); the elastic blocking piece (320) comprises a fixed portion (321) and an elastic portion (322); the fixed portion (321) is connected to the elastic portion (322); the fixed portion (321) is connected to the slide plate (200); the elastic portion (322) comprises a first elastic piece (3221) and a second elastic piece (3222); the first elastic piece (3221) and the second elastic piece (3222) are respectively fitted to two side surfaces of the toggle rod (310); The rotating mechanism (400) further comprises a base (420), wherein the base (420) is fixed on the base plate (500), the rotating shaft (410) is provided with a rocker arm (412), the rocker arm (412) is provided with an elongated hole (4111), and the second lever end (312) is hingedly connected to the rocker arm (412); the base (420) further comprises two ears (421) and two eccentric positioning pins (422), the two ears (421) are connected to the base (420) The two eccentric positioning pins (422) are respectively connected to the two support ears (421), and the eccentric positioning pins (422) are used to restrict the rotation range of the shifting rod (310); the eccentric positioning pin (422) is provided with an eccentric through hole (4221), the axis of the eccentric through hole (4221) is parallel to the axis of the eccentric positioning pin (422), and the eccentric positioning pin (422) is connected to the support ear (421) by a bolt passing through the eccentric through hole (4221).

2. A toggle device according to claim 1, characterized in that: The base (420) is provided with a receiving cavity, and the rotating shaft (410) is arranged in the receiving cavity.

3. A toggle device according to claim 1, characterized in that: The lever (310) further comprises: A sliding bearing (313), wherein the first lever end (311) is inlaid with a sliding bearing (313); A gasket (314), the gasket (314) being arranged between the lever (310) and the slide plate (200); A pin shaft (315), one end of the pin shaft (315) is connected to the first lever end (311) via the sliding bearing (313), the other end of the pin shaft (315) passes through the center hole of the gasket (314) and is fixedly connected to the slide plate (200), the gasket (314) and the pin shaft (315) are coaxial, and the gasket (314) and the pin shaft (315) are slidably matched.

4. A toggle device according to claim 1, characterized in that: The lever (310) further comprises: A lever pin hole (316) and a rotating shaft (317), wherein the lever pin hole (316) and the rotating shaft (317) are in transitional fit; A rolling bearing (318), the rolling bearing (318) comprising an inner ring and an outer ring, the inner ring being in transitional fit with the lower portion of the rotating shaft (317), and the outer ring being arranged in the elongated hole (4111); A shaft sleeve (319), wherein the shaft sleeve (319) is disposed on the rotating shaft (317), and the shaft sleeve (319) is disposed between the shifting rod (310) and the rolling bearing (318); The rotating shaft nut (3171) is provided with an external thread on the upper part of the rotating shaft (317), and the rotating shaft nut (3171) is provided with an internal thread, and the external thread and the internal thread are arranged correspondingly. The rotating shaft nut (3171) is tightened with the rotating shaft (317) through the internal thread and the external thread to achieve axial fixation of the rotating shaft (317) and the rolling bearing (318).

5. A toggle device according to claim 1, characterized in that: include: The base (420) is provided with an outer edge (423), and the outer edge (423) is provided with two base positioning pin holes. The base plate (500) is provided with base plate positioning pin holes corresponding to the base positioning pin holes. The base (420) is positioned with the base plate (500) by positioning pins passing through the base positioning pin holes and the base plate positioning pin holes. The base (420) and the base plate (500) are connected by bolts.

6. A toggle device according to claim 2, characterized in that: A step (424) and a base bearing (425) are provided in the accommodating cavity. The lower part of the base bearing (425) abuts against the step surface of the step (424). An elastic retaining ring (426) for a hole is provided on the upper part of the base bearing (425). An annular groove is provided in the accommodating cavity. The elastic retaining ring (426) is clamped in the annular groove and abuts against the base bearing (425). The rotating shaft (410) is connected to the inner ring of the base bearing (425). The inner wall of the accommodating cavity abuts against the outer ring of the base bearing (425). A locking nut (413) is provided at the lower part of the rotating shaft (410). The rotating shaft (410) and the locking nut (413) are threadedly matched to fix the rotating shaft (410) in the axial direction.

7. A centralized rotation driving method, used for driving a plurality of rotating mechanisms (400) by means of a toggle device according to any one of claims 1 to 6, characterized in that: include: The rotation angles of the plurality of rotation mechanisms (400) are respectively set according to the rotation angles required for work; A plurality of rotating mechanisms (400) are driven simultaneously by a power source so that the rotating mechanisms (400) rotate according to respective set rotation angles; By arranging an elastic blocking sheet (320) between the toggle mechanism (300) and the rotating mechanism (400), it is prevented that the driving system continues to operate after the rotating mechanism (400) is in place, thereby preventing the structure from being damaged. Each rotating mechanism (400) achieves rotation repeatability accuracy through an eccentric positioning pin (422); The installation angle of the eccentric positioning pin (422) is adjusted to fine-tune the rotation angle of the rotating mechanism (400).

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