CN219170071U

CN219170071U - Bidirectional driving mechanism

Info

Publication number: CN219170071U
Application number: CN202223587387.4U
Authority: CN
Inventors: 卢松
Original assignee: Shanghai Aokewei Intelligent Equipment Co ltd; Shanghai Kelai Shengluo Automation Equipment Co ltd; SHANGHAI KELAI ELECTROMECHANICAL AUTOMATION ENGINEERING CO LTD
Current assignee: Shanghai Aokewei Intelligent Equipment Co ltd; Shanghai Kelai Shengluo Automation Equipment Co ltd; SHANGHAI KELAI ELECTROMECHANICAL AUTOMATION ENGINEERING CO LTD
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-13
Anticipated expiration: 2032-12-30

Abstract

The utility model belongs to the technical field of mechanical transmission, and discloses a bidirectional driving mechanism, which comprises a mounting base, a sliding platform, a linear driving component, a rotary driving piece, a first transmission component and a second transmission component, wherein the rotary driving piece, the first transmission component and the second transmission component are arranged on the sliding platform, a driven workpiece is arranged between the first transmission component and the second transmission component, a transmission input end of the driven workpiece faces the first transmission component or faces the second transmission component, the linear driving component can drive the sliding platform to move, so that the first transmission component is connected with the transmission input end or the second transmission component is connected with the transmission input end, and the rotary driving piece drives the driven workpiece to move through the first transmission component or the second transmission component. The bidirectional driving mechanism can flexibly switch the transmission direction, can realize bidirectional transmission only through one rotary driving piece, reduces the occupied space of the mechanism and reduces the installation and maintenance cost.

Description

Bidirectional driving mechanism

Technical Field

The utility model relates to the technical field of mechanical transmission, in particular to a bidirectional driving mechanism.

Background

In motor-driven transmission devices, it is often necessary to transmit in both directions, i.e. to have a bi-directional transmission function. Specifically, for a driven workpiece, the transmission input end may be on the left side or the right side, and in order to ensure that the output end of the transmission device can be in transmission connection with the input end of the driven workpiece, the transmission device needs to be provided with a left transmission component and a right transmission component. The driven workpiece is arranged between the left transmission assembly and the right transmission assembly, if the transmission input end of the driven workpiece is at the left side, the left transmission assembly is connected with the transmission input end, and the motor drives the left transmission assembly to enable the driven workpiece to move; if the transmission input end of the driven workpiece is on the right side, the right transmission assembly is connected with the transmission input end, and the motor drives the right transmission assembly to enable the driven workpiece to move.

In the bidirectional driving mechanism in the prior art, two motors are often required to drive the left transmission assembly and the right transmission assembly respectively, so that a large space is occupied, and the production cost is increased.

Therefore, a new bi-directional driving mechanism is needed to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a bidirectional driving mechanism which can flexibly switch the transmission direction, reduce the occupied space and reduce the installation and maintenance cost in the automatic assembly production process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

there is provided a bi-directional drive mechanism comprising:

a mounting base;

the sliding platform is slidably arranged on the mounting base;

the linear driving assembly is arranged on the mounting base and is in transmission connection with the sliding platform;

the rotary driving piece is arranged on the sliding platform;

the first transmission assembly and the second transmission assembly are arranged on the sliding platform and are in transmission connection with the rotary driving piece;

the driven workpiece is arranged between the first transmission component and the second transmission component, the transmission input end of the driven workpiece faces to the first transmission component or faces to the second transmission component, the linear driving component can drive the sliding platform to move, so that the first transmission component is connected with the transmission input end or the second transmission component is connected with the transmission input end, and the rotary driving piece drives the driven workpiece to move through the first transmission component or the second transmission component.

As a preferable mode of the bidirectional driving mechanism provided by the utility model, the linear driving assembly comprises:

the first air cylinder is fixed at the bottom of the mounting base through a first mounting frame;

the second mounting frame is slidably connected to the bottom of the mounting base, and the output end of the first air cylinder is in transmission connection with the second mounting frame;

the second cylinder is fixed on the second mounting frame, and the output end of the second cylinder is in transmission connection with the sliding platform.

As the preferable scheme of the bidirectional driving mechanism provided by the utility model, the linear driving assembly further comprises a traction frame, the installation base is provided with a strip-shaped hole, the strip-shaped hole extends along the sliding direction of the sliding platform, the lower end of the traction frame is in transmission connection with the output end of the second cylinder, the upper end of the traction frame penetrates through the strip-shaped hole and is connected with the sliding platform, and the traction frame can slide in the strip-shaped hole.

As the preferable scheme of the bidirectional driving mechanism provided by the utility model, the lower side surface of the mounting base is provided with a first guide rail, the second mounting frame is connected with a first sliding block, and the first sliding block is in sliding fit with the first guide rail;

the upper side of the mounting base is provided with a second guide rail, the bottom surface of the sliding platform is connected with a second sliding block, and the second sliding block is in sliding fit with the second guide rail.

As a preferable scheme of the bidirectional driving mechanism provided by the utility model, the first transmission assembly comprises a first shaft, and a first square plug is coaxially arranged on the first shaft;

the second transmission assembly comprises a second shaft, and a second square plug is coaxially arranged on the second shaft;

the rotary driving piece can drive the first shaft and the second shaft to rotate, and the first square plug and the second square plug are alternatively spliced with the square socket of the transmission input end.

As the preferable scheme of the bidirectional driving mechanism provided by the utility model, the output end of the rotary driving piece is connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, and the first bevel gear is perpendicular to the axis of the second bevel gear;

the second bevel gear is coaxially connected with a transmission shaft;

the first transmission assembly comprises a first gear and a second gear which are meshed, the second transmission assembly comprises a third gear and a fourth gear which are meshed, the first gear and the third gear are coaxially arranged on the transmission shaft, the second gear is coaxially connected with the first shaft, and the fourth gear is coaxially connected with the second shaft.

The bidirectional driving mechanism further comprises a first proximity switch and a second proximity switch, wherein the first proximity switch is used for detecting the position of the first square plug, and the second proximity switch is used for detecting the position of the second square plug.

As the preferable scheme of the bidirectional driving mechanism provided by the utility model, the driven workpiece comprises a worm and a worm wheel which are meshed, one end of the worm is the transmission input end, and the worm wheel is coaxially connected with a rotating shaft.

As the preferable scheme of the bidirectional driving mechanism provided by the utility model, the sliding platform is provided with the limiting plates, the mounting base is provided with the first stop plate and the second stop plate at intervals along the sliding direction of the sliding platform, and the limiting plates are positioned between the first stop plate and the second stop plate.

As the preferable scheme of the bidirectional driving mechanism provided by the utility model, the first baffle plate is provided with the first buffer, the second baffle plate is provided with the second buffer, and the limiting plate can be abutted with the first buffer and the second buffer.

The utility model has the beneficial effects that:

the utility model provides a bidirectional driving mechanism, wherein a driven workpiece is arranged between a first transmission component and a second transmission component, if the transmission input end of the driven workpiece faces the first transmission component, a linear driving component drives a sliding platform to move, the first transmission component moves along with the sliding platform to be connected with the transmission input end, and then a rotary driving component is started to drive the driven workpiece to move through the first transmission component; if the transmission input end of the driven workpiece faces the second transmission assembly, the linear driving assembly drives the sliding platform to move, the second transmission assembly moves along with the sliding platform to be connected with the transmission input end, and then the rotary driving piece is started to drive the driven workpiece to move through the second transmission assembly. The bidirectional driving mechanism can flexibly switch the transmission direction to adapt to the direction of the transmission input end of the driven workpiece, and can realize bidirectional transmission only through one rotary driving piece, and the rotary driving pieces are not required to be arranged in the two directions, so that the occupied space of the mechanism is reduced, and the installation and maintenance cost is reduced.

Drawings

FIG. 1 is a first view of a bi-directional drive mechanism provided in accordance with an embodiment of the present utility model;

FIG. 2 is a second view of a bi-directional drive mechanism provided in accordance with an embodiment of the present utility model;

FIG. 3 is a third view of a bi-directional drive mechanism provided in accordance with an embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is a partial enlarged view at B in FIG. 2;

FIG. 6 is a first view of the drive portion of the bi-directional drive mechanism provided in accordance with an embodiment of the present utility model;

FIG. 7 is a second view of the drive portion of the bi-directional drive mechanism provided in accordance with an embodiment of the present utility model;

FIG. 8 is a third view of the drive portion of the bi-directional drive mechanism provided in accordance with the embodiments of the present utility model;

FIG. 9 is a schematic view of a structure of a driven workpiece according to an embodiment of the present utility model;

fig. 10 is a partial enlarged view at C in fig. 9.

In the figure:

1. a mounting base; 2. a sliding platform; 3. a linear drive assembly; 4. a rotary driving member; 5. a first transmission assembly; 6. a second transmission assembly; 7. a discharging platform;

11. a bar-shaped hole; 12. a first guide rail; 13. a second guide rail; 14. a first stop plate; 15. a second stop plate;

141. a first buffer; 142. a third proximity switch;

151. a second buffer; 152. a fourth proximity switch;

21. a second slider; 22. a limiting plate;

31. a first cylinder; 32. a first mounting frame; 33. a second mounting frame; 34. a second cylinder; 35. a traction frame;

331. a first slider;

51. a first shaft; 52. a first square plug; 53. a first gear; 54. a second gear;

61. a second shaft; 62. a second square plug; 63. a third gear; 64. a fourth gear;

81. a first bevel gear; 82. a second bevel gear; 83. a transmission shaft;

91. a first proximity switch; 92. a second proximity switch;

100. a driven workpiece; 110. a worm; 120. a worm wheel; 130. a rotating shaft;

101. a transmission input; 1011. square socket.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1, 2 and 3, the present embodiment provides a bidirectional driving mechanism, which includes a mounting base 1, a sliding platform 2, a linear driving assembly 3, a rotary driving member 4, a first transmission assembly 5 and a second transmission assembly 6.

Wherein the sliding platform 2 is slidably arranged on the mounting base 1; the linear driving assembly 3 is arranged on the mounting base 1 and is in transmission connection with the sliding platform 2; the rotary driving piece 4 is arranged on the sliding platform 2; the first transmission component 5 and the second transmission component 6 are both arranged on the sliding platform 2 and are in transmission connection with the rotary driving piece 4; referring to fig. 2, 3 and 5, the driven workpiece 100 is disposed between the first transmission assembly 5 and the second transmission assembly 6, and the transmission input end 101 (see fig. 4) of the driven workpiece 100 faces the first transmission assembly 5 or faces the second transmission assembly 6, the linear driving assembly 3 can drive the sliding platform 2 to move, so that the first transmission assembly 5 is connected with the transmission input end 101 or the second transmission assembly 6 is connected with the transmission input end 101, and the rotation driving member 4 drives the driven workpiece 100 to move through the first transmission assembly 5 or the second transmission assembly 6.

When the bidirectional driving mechanism provided in this embodiment is applied, the driven workpiece 100 is placed between the first transmission component 5 and the second transmission component 6, if the transmission input end 101 of the driven workpiece 100 faces the first transmission component 5, the linear driving component 3 drives the sliding platform 2 to move, the first transmission component 5 moves along with the sliding platform 2 to be connected with the transmission input end 101, and then the rotary driving component 4 is started to drive the driven workpiece 100 to move through the first transmission component 5; if the transmission input end 101 of the driven workpiece 100 faces the second transmission assembly 6, the linear driving assembly 3 drives the sliding platform 2 to move, the second transmission assembly 6 moves along with the sliding platform 2 to be connected with the transmission input end 101, and then the rotary driving member 4 is started to drive the driven workpiece 100 to move through the second transmission assembly 6.

The bidirectional driving mechanism can flexibly switch the transmission direction to adapt to the direction of the transmission input end 101 of the driven workpiece 100, and can realize bidirectional transmission only through one rotary driving piece, and the rotary driving piece 4 is not required to be arranged in two directions, so that the occupied space of the mechanism is reduced, and the installation and maintenance cost is reduced.

Referring to fig. 1 and 3, the mechanism further includes a discharging platform 7, and the driven workpiece 100 is supported on the discharging platform 7.

Referring to fig. 4, 5 and 6, the first transmission assembly 5 includes a first shaft 51, and a first square plug 52 is coaxially disposed on the first shaft 51; the second transmission assembly 6 comprises a second shaft 61, and a second square plug 62 is coaxially arranged on the second shaft 61; the rotary driving member 4 can drive the first shaft 51 and the second shaft 61 to rotate, and the first square plug 52 and the second square plug 62 are alternatively inserted into the square socket 1011 of the transmission input end 101, so that the first square plug 52 or the second square plug 62 can drive the driven workpiece 100 to move.

For example, referring to fig. 9 and 10, the driven workpiece 100 in this embodiment may include a worm wheel 120 and a worm 110 that are meshed, where one end of the worm 110 is a transmission input end 101, and the end is provided with the square socket 1011 described above, and the worm wheel 120 is coaxially connected with a rotation shaft 130. When the first square plug 52 (or the second square plug 62) is plugged into the square socket 1011, the rotation driving member 4 drives the worm 110 to rotate by the engagement of the first square plug 52 (or the second square plug 62) and the square socket 1011, and further drives the rotation shaft 130 to rotate by the engagement with the worm wheel 120. The bi-directional drive mechanism is capable of driving the worm 110 to rotate regardless of which side the square socket 1011 of the worm 110 is facing, thereby testing whether the worm gear mechanism is well driven.

Of course, the driven workpiece 100 is not limited to the worm gear mechanism described above, but may be a mechanism such as a rack and pinion mechanism, which is placed between the first transmission unit 5 and the second transmission unit 6, and the transmission performance thereof is tested by the first square plug 52 or the second square plug 62.

Referring to fig. 6 and 7, the output end of the rotary driving member 4 is connected with a first bevel gear 81, the first bevel gear 81 is engaged with a second bevel gear 82, and the first bevel gear 81 is perpendicular to the axis of the second bevel gear 82; the second bevel gear 82 is coaxially connected with a transmission shaft 83; the first transmission assembly 5 comprises a first gear 53 and a second gear 54 which are meshed, the second transmission assembly 6 comprises a third gear 63 and a fourth gear 64 which are meshed, the first gear 53 and the third gear 63 are coaxially arranged on a transmission shaft 83, the second gear 54 is coaxially connected with the first shaft 51, and the fourth gear 64 is coaxially connected with the second shaft 61. The rotation driving member 4 drives the transmission shaft 83 to rotate through the first bevel gear 81 and the second bevel gear 82, so that the first gear 53 and the third gear 63 rotate synchronously, and the second gear 54 and the fourth gear 64 rotate synchronously under the meshing action, so that the first shaft 51 and the second shaft 61 are driven to rotate. When one of the first square plug 52 and the second square plug 62 is in plug-in engagement with the square socket 1011, the rotary driver 4 can drive the driven workpiece 100 to operate through the plug. The rotary drive 4 is preferably a servomotor.

Referring to fig. 6 and 7, two supporting seats are provided at intervals on the sliding platform 2, two ends of the transmission shaft 83 are respectively rotatably provided on the two supporting seats, and the first shaft 51 and the second shaft 61 are respectively rotatably mounted on the two supporting seats.

Further, referring to fig. 8, the bidirectional driving mechanism further includes a first proximity switch 91 and a second proximity switch 92, and the first proximity switch 91 and the second proximity switch 92 are respectively disposed on the two support seats. The first proximity switch 91 is used to detect the position of the first square plug 52 and the second proximity switch 92 is used to detect the position of the second square plug 62. When the first square plug 52 is inserted into the square socket 1011, the first proximity switch 91 does not detect the position of the first square plug 52, indicating that it is in place, and the rotary drive 4 is activated. When the second square plug 62 is inserted into the square socket 1011, the second proximity switch 92 does not detect the position of the second square plug 62, indicating that the movement is in place, and the rotary drive 4 is activated.

Referring to fig. 6, the linear driving assembly 3 includes a first cylinder 31, a first mounting bracket 32, a second mounting bracket 33, and a second cylinder 34. The first cylinder 31 is fixed to the bottom of the mounting base 1 by a first mounting bracket 32; the second mounting frame 33 is slidably connected to the bottom of the mounting base 1, and the output end of the first air cylinder 31 is in transmission connection with the second mounting frame 33; the second air cylinder 34 is fixed on the second mounting frame 33, and the output end of the second air cylinder 34 is in transmission connection with the sliding platform 2. The retraction movement of the output end of the first cylinder 31 and the extension movement of the output end of the second cylinder 34 can drive the sliding platform 2 to slide left and right. By providing two cylinders, the travel can be increased.

Further, referring to fig. 7, the linear driving assembly 3 further includes a traction frame 35, the mounting base 1 is provided with a bar-shaped hole 11, the bar-shaped hole 11 extends along the sliding direction of the sliding platform 2, the lower end of the traction frame 35 is in transmission connection with the output end of the second cylinder 34, the upper end of the traction frame 35 passes through the bar-shaped hole 11 and is connected with the sliding platform 2, and the traction frame 35 can slide in the bar-shaped hole 11. When the first cylinder 31 and the second cylinder 34 move, the traction frame 35 can be driven to slide left and right in the strip-shaped hole 11, and the sliding platform 2 moves left and right along with the traction frame 35. The arrangement of the bar-shaped holes 11 and the traction frame 35 can further reduce the occupied space of the mechanism.

Referring to fig. 6, a first guide rail 12 is disposed on the lower side of the mounting base 1, a first slider 331 is connected to the second mounting frame 33, and the first slider 331 is slidably matched with the first guide rail 12; the upper side of the mounting base 1 is provided with a second guide rail 13, the bottom surface of the sliding platform 2 is connected with a second sliding block 21, and the second sliding block 21 is in sliding fit with the second guide rail 13. The arrangement of the first guide rail 12 and the second guide rail 13 can improve the movement accuracy of the second mounting frame 33 and the sliding platform 2, and avoid movement deviation.

Referring to fig. 8, a limiting plate 22 is disposed on the sliding platform 2, a first stop plate 14 and a second stop plate 15 are disposed on the mounting base 1 along the sliding direction of the sliding platform 2 at intervals, and the limiting plate 22 is located between the first stop plate 14 and the second stop plate 15 to limit the moving distance of the sliding platform 2 and avoid the sliding platform 2 from moving beyond the range.

Further, the first buffer 141 is disposed on the first stop plate 14, the second buffer 151 is disposed on the second stop plate 15, and the limiting plate 22 can be abutted against the first buffer 141 and the second buffer 151, so that hard collision between the limiting plate 22 and the first stop plate 14 and the second stop plate 15 is avoided, and meanwhile, a buffer braking effect is achieved.

Referring to fig. 8, the first stopper plate 14 is further provided with a third proximity switch 142 for detecting the position of the stopper plate 22 when the stopper plate 22 moves toward the first stopper plate 14, and the first cylinder 31 stops retracting when the stopper plate 22 moves into position; the second stop plate 15 is further provided with a fourth proximity switch 152 for detecting the position of the stop plate 22 when the stop plate 22 moves toward the second stop plate 15, and the second cylinder 34 stops extending when the stop plate 22 moves in place.

The working procedure is as follows:

referring to fig. 6, when the square socket 1011 of the worm 110 faces the first transmission assembly 5, the first cylinder 31 is retracted, the traction frame 35 is driven to move right by the second cylinder 34 (the output end does not move), the sliding platform 2 moves right synchronously therewith, the first square plug 52 is inserted into the square socket 1011, the first proximity switch 91 does not detect the first square plug 52 and moves in place, the rotary driving member 4 (servo motor) is started, the first bevel gear 81 and the second bevel gear 82 drive the first gear 53 and the second gear 54 to rotate, and then the first square plug 52 is rotated, so that the worm 110 is driven to rotate.

Referring to fig. 6, when the square socket 1011 of the worm 110 faces the second transmission assembly 6, the second cylinder 34 is extended, the sliding platform 2 is driven to move left by the traction frame 35, the second square plug 62 is inserted into the square socket 1011, the second square plug 62 is not detected by the second proximity switch 92, and moves in place, the rotation driving member 4 (servo motor) is started, the transmission shaft 83 is driven to rotate by the first bevel gear 81 and the second bevel gear 82, and then the second square plug 62 is driven to rotate by the third gear 63 and the fourth gear 64, so that the worm 110 is driven to rotate.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The bidirectional driving mechanism is characterized by comprising:

a mounting base (1);

a sliding platform (2), wherein the sliding platform (2) is slidably arranged on the mounting base (1);

the linear driving assembly (3) is arranged on the mounting base (1) and is in transmission connection with the sliding platform (2);

a rotation driving member (4) provided on the slide table (2);

the first transmission assembly (5) and the second transmission assembly (6) are arranged on the sliding platform (2) and are in transmission connection with the rotary driving piece (4);

the driven workpiece (100) is arranged between the first transmission component (5) and the second transmission component (6), a transmission input end (101) of the driven workpiece (100) faces to the first transmission component (5) or faces to the second transmission component (6), the linear driving component (3) can drive the sliding platform (2) to move, so that the first transmission component (5) is connected with the transmission input end (101) or the second transmission component (6) is connected with the transmission input end (101), and the rotary driving component (4) drives the driven workpiece (100) to move through the first transmission component (5) or the second transmission component (6).

2. The bi-directional drive mechanism according to claim 1, wherein the linear drive assembly (3) comprises:

a first cylinder (31), wherein the first cylinder (31) is fixed at the bottom of the mounting base (1) through a first mounting frame (32);

the second mounting frame (33) is slidably connected to the bottom of the mounting base (1), and the output end of the first air cylinder (31) is in transmission connection with the second mounting frame (33);

the second air cylinder (34), the second air cylinder (34) is fixed in on the second mounting bracket (33), the output of second air cylinder (34) with sliding platform (2) transmission is connected.

3. The bidirectional driving mechanism according to claim 2, wherein the linear driving assembly (3) further comprises a traction frame (35), the mounting base (1) is provided with a bar-shaped hole (11), the bar-shaped hole (11) extends along the sliding direction of the sliding platform (2), the lower end of the traction frame (35) is in transmission connection with the output end of the second air cylinder (34), the upper end of the traction frame (35) penetrates through the bar-shaped hole (11) and is connected with the sliding platform (2), and the traction frame (35) can slide in the bar-shaped hole (11).

4. A bi-directional drive mechanism according to claim 2, wherein,

the lower side surface of the mounting base (1) is provided with a first guide rail (12), the second mounting frame (33) is connected with a first sliding block (331), and the first sliding block (331) is in sliding fit with the first guide rail (12);

the upper side of the mounting base (1) is provided with a second guide rail (13), the bottom surface of the sliding platform (2) is connected with a second sliding block (21), and the second sliding block (21) is in sliding fit with the second guide rail (13).

5. The bi-directional drive mechanism of claim 1, wherein,

the first transmission assembly (5) comprises a first shaft (51), and a first square plug (52) is coaxially arranged on the first shaft (51);

the second transmission assembly (6) comprises a second shaft (61), and a second square plug (62) is coaxially arranged on the second shaft (61);

the rotary driving piece (4) can drive the first shaft (51) and the second shaft (61) to rotate, and the first square plug (52) and the second square plug (62) are alternatively spliced with the square socket (1011) of the transmission input end (101).

6. The bidirectional drive mechanism according to claim 5, wherein the output end of the rotary drive member (4) is connected with a first bevel gear (81), the first bevel gear (81) is meshed with a second bevel gear (82), and the first bevel gear (81) is perpendicular to the axis of the second bevel gear (82);

the second bevel gear (82) is coaxially connected with a transmission shaft (83);

the first transmission assembly (5) comprises a first gear (53) and a second gear (54) which are meshed, the second transmission assembly (6) comprises a third gear (63) and a fourth gear (64) which are meshed, the first gear (53) and the third gear (63) are coaxially arranged on the transmission shaft (83), the second gear (54) is coaxially connected with the first shaft (51), and the fourth gear (64) is coaxially connected with the second shaft (61).

7. The bi-directional drive mechanism of claim 5, further comprising a first proximity switch (91) and a second proximity switch (92), the first proximity switch (91) being configured to detect a position of the first square plug (52) and the second proximity switch (92) being configured to detect a position of the second square plug (62).

8. The bi-directional drive mechanism of any one of claims 1-7, wherein the driven workpiece (100) comprises a worm (110) and a worm wheel (120) meshed with each other, one end of the worm (110) is the transmission input end (101), and the worm wheel (120) is coaxially connected with a rotating shaft (130).

9. The bidirectional driving mechanism according to any one of claims 1 to 7, wherein a limiting plate (22) is arranged on the sliding platform (2), a first stop plate (14) and a second stop plate (15) are arranged on the mounting base (1) at intervals along the sliding direction of the sliding platform (2), and the limiting plate (22) is positioned between the first stop plate (14) and the second stop plate (15).

10. The bidirectional drive mechanism according to claim 9, wherein a first buffer (141) is provided on the first stopper plate (14), a second buffer (151) is provided on the second stopper plate (15), and the stopper plate (22) can abut against the first buffer (141) and the second buffer (151).