A mutual exclusion telescopic drive mechanism

Abstract

This invention discloses a mutually exclusive telescopic drive mechanism, comprising: a cylinder body, a first piston assembly and a second piston assembly connected to the cylinder body, and a mutually exclusive component. The mutually exclusive component includes: a first telescopic rod, a second telescopic rod, and a gear. The gear is rotatably connected to the cylinder body. The first telescopic rod has a first rack portion, and the second telescopic rod has a second rack portion. The first rack portion and the second rack portion are arranged parallel to each other and both mesh with the gear. The first telescopic rod is also connected to the first piston assembly, and the second telescopic rod is also connected to the second piston assembly. By using a mechanical mutually exclusive component located in the cylinder body, this mechanism solves the problem of mutual interference caused by air pressure fluctuations in the independent control of dual cylinders. By setting a counteracting piston rod, it drives each piston assembly to automatically center and stop after shutdown. This mutually exclusive telescopic drive mechanism also uses a buffer component on the connecting plate to cushion the piston assemblies at extreme positions, avoiding rigid collision damage.

Description

Technical Field

[0001] This invention relates to the field of mutually exclusive slide cylinder technology, and in particular to a mutually exclusive telescopic drive mechanism. Background Technology

[0002] In automated assembly and material sorting production lines, slide cylinders serve as core actuators, and their motion coordination and positioning accuracy directly impact production efficiency and work quality. Existing slide cylinder-based mutual exclusion mechanisms primarily achieve motion coordination in two ways: First, a dual-cylinder independent control mode is used. This mode uses a PLC as the control core, programming the action sequence of the two sets of cylinders and using delay instructions to plan the motion rhythm to avoid interference. Due to the flexibility of the electronic control logic, it is widely used in small production lines. Second, a mechanically linked slide cylinder is used. Its core is to use rigid mechanical structures such as connecting rods or cams to forcibly constrain the motion relationship between the two sets of slides, thereby achieving mutually exclusive actions under purely mechanical drive. This structure is more common in scenarios requiring high motion synchronization.

[0003] As automated production lines develop towards greater flexibility and higher precision, existing equipment is gradually revealing its functional shortcomings. For example, if dual-cylinder independent control relies solely on program timing to achieve mutual exclusion, air pressure fluctuations can easily cause interference between the two cylinders. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mutually exclusive telescopic drive mechanism to solve the technical problem of mutual interference of mutually exclusive actions caused by air pressure fluctuations in the existing dual-cylinder independent timing pneumatic control.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An embodiment of the present invention provides a mutually exclusive telescopic drive mechanism, comprising: The cylinder body includes a first piston chamber and a second piston chamber parallel to the first piston chamber. A first piston assembly is disposed in the first piston chamber; A second piston assembly, the second piston assembly being disposed in the second piston chamber; and A mutual exclusion assembly, connected to the cylinder body, is used to control the first piston assembly and the second piston assembly to extend and retract in opposite directions; The mutually exclusive component includes: a first telescopic rod, a second telescopic rod, and a gear. The gear is rotatably connected to the cylinder body. The first telescopic rod has a first rack portion, and the second telescopic rod has a second rack portion. The first rack portion and the second rack portion are arranged in parallel and both mesh with the gear. The first telescopic rod is also connected to the first piston assembly, and the second telescopic rod is also connected to the second piston assembly.

[0006] The cylinder body is provided with a first insertion cavity and a second insertion cavity parallel to the first insertion cavity. The second insertion cavity is arranged parallel to the first piston chamber. The first telescopic rod is inserted into the first insertion cavity, and the second telescopic rod is inserted into the second insertion cavity.

[0007] The first insertion cavity and the second insertion cavity are located between the first piston chamber and the second piston chamber.

[0008] The first piston assembly and the second piston assembly have the same structure, both including a piston and a piston rod connected to the piston.

[0009] The first piston chamber is further provided with a first counter-impact piston, and the second piston chamber is further provided with a second counter-impact piston. The first counter-impact piston is located behind the first piston assembly, and the second counter-impact piston is located behind the second piston assembly. The first counter-impact piston and the second counter-impact piston are controlled by the same driving air source.

[0010] The cylinder body is further provided with a first guide assembly and a second guide assembly. The first guide assembly and the second guide assembly are arranged in parallel to each other. The first guide assembly is connected to the same end of the first piston assembly and the first telescopic rod, and the second guide assembly is connected to the same end of the second piston assembly and the second telescopic rod.

[0011] The first guide component and the second guide component have the same structure, both including: a guide rail and a slider slidably connected to the guide rail, and the guide rail is fixedly connected to the bottom of the cylinder body.

[0012] The first guide assembly is connected to the first piston assembly and the first telescopic rod, and the second guide assembly is connected to the second piston assembly and the second telescopic rod via connecting components.

[0013] The connecting assembly includes: a mounting plate and a connecting plate connected to the mounting plate. The mounting plate is connected to the slider, and the connecting plate is connected to the same side end of the first piston assembly and the first telescopic rod, or to the same side end of the second piston assembly and the second telescopic rod.

[0014] The connecting plate is also provided with a buffer component, which is positioned on one side facing the cylinder body.

[0015] The mutually exclusive telescopic drive mechanism of the present invention solves the problem of mutual interference caused by air pressure fluctuations when using independent control of dual cylinders by means of a mechanical mutually exclusive component set in the cylinder body. It also solves the problem by setting an opposing piston rod to drive each piston assembly to automatically center and stop after shutdown. Furthermore, the mutually exclusive telescopic drive mechanism uses a buffer component on the connecting plate to cushion the piston assembly at extreme positions, avoiding rigid collision damage.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0017] Figures 1 to 3 These are schematic diagrams of the overall structure of the mutually exclusive telescopic drive mechanism from different perspectives according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the partial structure of the mutually exclusive telescopic drive mechanism of this invention after the cylinder body has been removed. Figure 5 This is an exploded view of the mutually exclusive telescopic drive mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the cylinder portion structure of the mutually exclusive telescopic drive mechanism according to an embodiment of the present invention; Figure 7 This is a side view of the mutually exclusive telescopic drive mechanism according to an embodiment of the present invention; Figure 8 for Figure 7 The sectional view shown is along line AA.

[0018] Explanation of reference numerals in the attached figures: The components include: a mutually exclusive telescopic drive mechanism 100, a cylinder 1, a first piston chamber 11, a second piston chamber 12, a first insertion cavity 13, a second insertion cavity 14, a first air intake channel 15, a second air intake channel 16, a third air intake channel 17, a bottom 101, a front side 102, a first piston assembly 2, a first piston 21, a first piston rod 22, a second piston assembly 3, a second piston 31, a second piston rod 32, a first guide assembly 4, a first guide rail 41, a first slider 42, a first connecting assembly 5, a first mounting plate 51, a first connecting plate 52, a first buffer 53, a first bolt 54, a second guide assembly 6, a second guide rail 61, a second slider 62, a second connecting assembly 7, a second mounting plate 71, a second connecting plate 72, a second buffer 73, a second bolt 74, a mutually exclusive assembly 8, a first telescopic rod 81, a first rack portion 811, a gear 82, a second telescopic rod 83, a second rack portion 831, a first counter-impact piston 9, and a second counter-impact piston 10. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In this invention, terms such as "installed," "connected," "joined," and "fixed" should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] In automated assembly and material sorting production lines, slide cylinders serve as core actuators, and their motion coordination and positioning accuracy directly impact production efficiency and work quality. Existing slide cylinder-based mutual exclusion mechanisms primarily achieve motion coordination in two ways: First, a dual-cylinder independent control mode is used. This mode uses a PLC as the control core, programming the action sequence of the two sets of cylinders and using delay instructions to plan the motion rhythm to avoid interference. Due to the flexibility of the electronic control logic, it is widely used in small production lines. Second, a mechanically linked slide cylinder is used. Its core is to use rigid mechanical structures such as connecting rods or cams to forcibly constrain the motion relationship between the two sets of slides, thereby achieving mutually exclusive actions under purely mechanical drive. This structure is more common in scenarios requiring high motion synchronization.

[0025] As automated production lines develop towards greater flexibility and higher precision, existing equipment is gradually revealing its functional limitations. For example, if dual-cylinder independent control relies solely on program timing to achieve mutual exclusion, air pressure fluctuations can easily cause interference between the two cylinders. Based on the above requirements, this invention provides a mutually exclusive telescopic drive mechanism 100.

[0026] Please see Figures 1 to 8 In this embodiment, the mutually exclusive telescopic drive mechanism 100 includes: The cylinder body 1 has a first piston chamber 11 and a second piston chamber 12 parallel to the first piston chamber 11; both the first piston chamber 11 and the second piston chamber 12 are used to house the piston cavity; First piston assembly 2, the first piston assembly 2 is disposed in the first piston chamber 11; The second piston assembly 3 is disposed in the second piston chamber 12; and Mutual exclusion component 8, which is connected to the cylinder 1, is used to control the first piston assembly 2 and the second piston assembly 3 to move in opposite directions.

[0027] In this embodiment, a mutually exclusive component 8 is used to control the first piston assembly 2 and the second piston assembly 3 connected to the same cylinder 1 to move synchronously in opposite directions. Compared with the existing mutually exclusive drive mechanism that uses a controller to control two independent cylinders to move sequentially according to timing logic, the mutually exclusive telescopic drive mechanism 100 in this embodiment uses the mutually exclusive component 8 as the only power source for mutually exclusive control, thereby ensuring that the first piston assembly 2 and the second piston assembly 3 move synchronously and in opposite directions, without causing mutual interference due to control timing or aerodynamic fluctuation errors.

[0028] Please refer to it again. Figure 4 and Figure 5The mutually exclusive component 8 includes: a first telescopic rod 81, a second telescopic rod 83, and a gear 82. The gear 82 is rotatably connected to the cylinder body 1. The first telescopic rod 81 is provided with a first rack portion 811, and the second telescopic rod 83 is provided with a second rack portion 831. The first rack portion 811 and the second rack portion 831 are arranged in parallel and both mesh with the gear 82. The first telescopic rod 81 is also connected to the first piston assembly 2, and the second telescopic rod 83 is also connected to the second piston assembly 3.

[0029] The first telescopic rod 81 and the second telescopic rod 83 mesh with the gear 82. Therefore, when the first telescopic rod 81 is driven by an external force, the second telescopic rod 83, which meshes with it, extends and retracts synchronously under the drive of the gear 82; and vice versa. The first telescopic rod 81 and the second telescopic rod 83 are arranged parallel to each other. Therefore, when the first telescopic rod 81 extends and retracts in a straight line, the second telescopic rod 83 is synchronously driven by the gear 82 to extend and retract in the opposite direction to the first telescopic rod 81. In this embodiment, mutual exclusion means that under the control of the mutual exclusion component 8, the first piston assembly 2 and the second piston assembly 3 extend and retract synchronously in opposite directions.

[0030] Specifically, the first rack portion 811 is disposed on the first telescopic rod 81 near the second telescopic rod 83, and the second rack portion 831 is disposed on the second telescopic rod 83 near the first telescopic rod 81. The first rack portion 811 and the second rack portion 831 are disposed opposite each other, and the gear 82 meshes between the first rack portion 811 and the second rack portion 831.

[0031] Please refer to it again. Figure 6 and Figure 8 The cylinder body 1 is provided with a first insertion cavity 13 and a second insertion cavity 14 parallel to the first insertion cavity 13. The second insertion cavity 14 is arranged parallel to the first piston chamber 11. The first telescopic rod 81 is inserted into the first insertion cavity 13, and the second telescopic rod 83 is inserted into the second insertion cavity 14. The first insertion cavity 13 and the second insertion cavity 14 are arranged parallel to each other, and the first insertion cavity 13 is also arranged parallel to the first piston chamber 11. Therefore, the second insertion cavity 14 is parallel to the first piston chamber 11. That is, the first piston chamber 11, the second piston chamber 12, the first insertion cavity 13, and the second insertion cavity 14 are all distributed parallel to each other. The corresponding first piston assembly 2, second piston assembly 3, first telescopic rod 81, and second telescopic rod 83 all have the same telescopic movement direction.

[0032] It is understood that, in another embodiment, the first telescopic rod 81 and the second telescopic rod 83 can also be connected to the outside of the cylinder body 1 via a bushing, and the corresponding gear 82 is also rotatably connected to the outer wall of the cylinder body 1. In this case, the mutually exclusive assembly 8, which is composed of the first telescopic rod 81, the gear 82, and the second telescopic rod 83 disposed outside the cylinder body 1, can also control the first piston assembly 2 and the second piston assembly 3 to synchronously extend and retract in opposite directions.

[0033] In this embodiment, the first telescopic rod 81, the second telescopic rod 83, and the gear 82 are embedded inside the cylinder 1. On the one hand, this simplifies the structure of the mutually exclusive telescopic drive mechanism 100, making it stable and reliable; on the other hand, it reduces the volume of the mutually exclusive telescopic drive mechanism 100, making it easier to apply to micro-space scenarios.

[0034] Please continue reading. Figure 8 The first insertion cavity 13 and the second insertion cavity 14 are located between the first piston chamber 11 and the second piston chamber 12. The first piston chamber 11, the second piston chamber 12, the first insertion cavity 13, and the second insertion cavity 14 are arranged at approximately the same height along the cylinder body 1, and are relatively distributed relative to each other according to the aforementioned positions. The first piston chamber 11, the second piston chamber 12, the first insertion cavity 13, and the second insertion cavity 14 are generally cylindrical cavities. Obviously, it can be understood that in other embodiments, the first piston chamber 11, the second piston chamber 12, the first insertion cavity 13, and the second insertion cavity 14 can also be arranged in other orders, as long as the mutual exclusion component 8 can synchronously drive the first piston assembly 2 and the second piston assembly 3 to synchronously extend and retract in opposite directions.

[0035] The first piston assembly 2 and the second piston assembly 3 have identical structures. The first piston assembly 2 includes a first piston 21 and a first piston rod 22 connected to the first piston 21. The second piston assembly 3 includes a second piston 31 and a second piston rod 32 connected to the second piston 31. The first piston 21 is disposed within the first piston chamber 11, and one end of the first piston rod 22 extends out of the first piston chamber 11. The second piston 31 is disposed within the second piston chamber 12, and one end of the second piston rod 32 extends out of the second piston chamber 12.

[0036] Please refer to it again. Figure 5 and Figure 8 The first piston chamber 11 is further provided with a first counter-impact piston 9, and the second piston chamber 12 is further provided with a second counter-impact piston 10. The first counter-impact piston 9 is located behind the first piston assembly 2, and the second counter-impact piston 10 is located behind the second piston assembly 3. The first counter-impact piston 9 and the second counter-impact piston 10 are controlled by the same driving air source.

[0037] The first counter-impact piston 9 and the first piston assembly 2 are both located in the first piston chamber 11, and are arranged in a front-to-back configuration. Therefore, the first piston assembly 2 and the first counter-impact piston 9 can drive each other to move synchronously. Similarly, the second counter-impact piston 10 and the second piston assembly 3 are both located in the second piston chamber 12, and are arranged in a front-to-back configuration. Therefore, the second counter-impact piston 10 and the second piston assembly 3 can drive each other to move synchronously. Since the first counter-impact piston 9 and the second counter-impact piston 10 are controlled by the same driving air source, after the driving air source is turned on, the strokes of the first counter-impact piston 9 and the second counter-impact piston 10 are kept consistent. Thus, after the mutually exclusive telescopic drive mechanism 100 stops at any position, the first piston assembly 2 and the second piston assembly 3 can be quickly and accurately centered simply by controlling the first counter-impact piston 9 and the second counter-impact piston 10. Compared with the existing centering adjustment structure design, its centering alignment is fast and accurate.

[0038] Please refer to it again. Figures 1 to 6 The cylinder body 1 is further provided with a first guide assembly 4 and a second guide assembly 6. The first guide assembly 4 and the second guide assembly 6 are arranged parallel to each other. The first guide assembly 4 is connected to the same end of the first piston assembly 2 and the first telescopic rod 81, and the second guide assembly 6 is connected to the same end of the second piston assembly 3 and the second telescopic rod 83. That is, the first piston assembly 2 and the first telescopic rod 81 jointly drive the sliding block of the first guide assembly 4 to move in a directional reciprocating motion, and the second piston assembly 3 and the second telescopic rod 83 jointly drive the sliding block of the second guide assembly 6 to move in a directional reciprocating motion. Obviously, the reciprocating motion directions of the first guide assembly 4 and the second guide assembly 6 are the same.

[0039] In this embodiment, the first guide assembly 4 and the second guide assembly 6 have the same structure. The first guide assembly 4 includes a first guide rail 41 and a first slider 42 slidably connected to the first guide rail 41. The first guide rail 41 is fixedly connected to the bottom 101 of the cylinder body 1. Similarly, the second guide assembly 6 includes a second guide rail 61 and a second slider 62 slidably connected to the second guide rail 61. The second guide rail 61 is fixedly connected to the bottom 101 of the cylinder body 1. Both the first guide rail 41 and the second guide rail 61 are arranged parallel to the first piston chamber 11.

[0040] The first guide assembly 4 is connected to the first piston assembly 2 and the first telescopic rod 81 via a first connecting assembly 5, and the second guide assembly 6 is connected to the second piston assembly 3 and the second telescopic rod 83 via a second connecting assembly 7.

[0041] The first connecting component 5 and the second connecting component 7 have identical structures. The first connecting component 5 includes a first mounting plate 51 and a first connecting plate 52 connected to the first mounting plate 51. The first mounting plate 51 is connected to the first slider 42, and the first connecting plate 52 is connected to the same-side end of the first piston assembly 2 and the first telescopic rod 81; that is, the first connecting plate 52 is simultaneously connected to the same-side end of both the first telescopic rod 81 and the first piston rod 22. Specifically, the first mounting plate 51 and the first connecting plate 52 are perpendicularly connected.

[0042] Similarly, the second connecting assembly 7 includes a second mounting plate 71 and a second connecting plate 72 connected to the second mounting plate 71. The second mounting plate 71 is connected to the second slider 62, and the second connecting plate 72 is connected to the same-side end of the second piston assembly 3 and the second telescopic rod 83. That is, the second connecting plate 72 is simultaneously connected to the same-side end of the second telescopic rod 83 and the second piston rod 32. The second mounting plate 71 and the second connecting plate 72 are perpendicularly connected to each other.

[0043] The first mounting plate 51 and the second mounting plate 71 can be connected to the structural components that need to be driven to perform drives that are opposite to each other.

[0044] To prevent the first piston assembly 2 and / or the second piston assembly 3 from rigidly colliding with the cylinder 1 when retracted to their limit positions, the first connecting plate 52 is also provided with a first buffer 53, which is positioned facing the front side 102 of the cylinder 1. Similarly, the second connecting plate 72 is provided with a second buffer 73, which is also positioned facing the front side 102 of the cylinder 1. The first buffer 53 and the second buffer 73 can be made of polyurethane, which absorbs motion inertia through elastic deformation to avoid rigid collisions.

[0045] If the mutually exclusive telescopic drive mechanism 100 in this embodiment needs to stop at the middle position, it can be detected by a magnetic grating ruler. When the target position is detected, the control module triggers the electromagnetic locking valve, and the mechanical locking pin is inserted into the positioning hole of the connecting plate. With the guidance constraint of the guide rail, precise locking is achieved.

[0046] The first mounting plate 51 and the first connecting plate 52 are connected by a first bolt 54. The first bolt 54 is equipped with a spring to provide cushioning for the first guide rail 41 and the first slider 42 when they move to their maximum stroke. Similarly, the second mounting plate 71 and the second connecting plate 72 are connected by a second bolt 74. The second bolt 74 is equipped with a spring to provide cushioning for the second guide rail 61 and the second slider 62 when they move to their maximum stroke.

[0047] like Figure 6As shown, the cylinder body 1 is further provided with a first intake channel 15, a second intake channel 16, and a third intake channel 17. The first intake channel 15 is connected to the first piston chamber 11 and is used to control the movement of the first piston 21. The second intake channel 16 is connected to the second piston chamber 12 and is used to control the movement of the second piston 31. The third intake channel 17 is used to simultaneously deliver gas to the cavities containing the first counter-piston 9 and the second counter-piston 10 along paths of the same length, so as to synchronously control the movement of the first counter-piston 9 and the second counter-piston 10.

[0048] Please refer to it again. Figures 1 to 8 The working principle of the mutually exclusive telescopic drive mechanism 100 in this embodiment is as follows: Power transmission and mutual exclusion motion principle: The power of this mutually exclusive telescopic drive mechanism 100 comes from compressed air driving the piston rod to extend and retract. When the first air intake channel 15 is open, compressed air enters the first piston chamber 11 of the cylinder 1, pushing the first piston rod 22 to extend and the second piston rod 32 to retract. At this time, the first telescopic rod 81 moves synchronously with the first connecting plate 52. Through the meshing transmission with the intermediate gear 82, it drives the second telescopic rod 83 to move in the opposite direction, thereby causing the second connecting plate 72 to retract synchronously with the second piston rod 32, realizing the mutually exclusive action of "left extension and right retraction". Similarly, when the second air intake channel 16 is open, the mechanism completes the action of "right extension and left retraction". The rigid meshing of the gear 82 with the rack of the first telescopic rod 81 and the second telescopic rod 83 ensures that the actions on both sides are absolutely mutually exclusive, with no risk of interference.

[0049] Stop-and-align principle: When the mutually exclusive telescopic drive mechanism 100 stops working, the third air intake channel 17 is ventilated, and compressed air enters the first piston chamber 11 and the second piston chamber 12 of the cylinder 1 through the internal connecting air passage, pushing the first opposing piston 9 and the second opposing piston 10 to move towards the middle position of the cylinder 1; since the piston strong air passage diameters connected to the first opposing piston 9 and the second opposing piston 10 are consistent and the air pressure is balanced, the first opposing piston 9 and the second opposing piston 10 respectively drive the first connecting plate 52 and the second connecting plate 72 to move synchronously, and finally the two sliding tables are precisely stopped in the symmetrical position in the middle of the cylinder 1, realizing automatic centering and alignment.

[0050] Buffering and overload protection principle: When the first piston rod 22 drives the first connecting plate 52 to retract to the near limit position of the cylinder 1, the first buffer 53 on the first connecting plate 52 first contacts the side of the cylinder 1. The elastic deformation of the first buffer 53 absorbs the motion inertia and avoids rigid collision; the buffering structure and principle between the second connecting plate 72 and the cylinder 1 are the same.

[0051] Compared with the prior art, the mutually exclusive telescopic drive mechanism 100 of this embodiment has the following advantages: Mechanically mutually exclusive transmission is more reliable: The innovative adoption of a symmetrical meshing structure of "rack-intermediate gear-rack" replaces electronic timing control with pure mechanical linkage, fundamentally eliminating the risk of motion interference caused by common problems in electronic control systems such as signal delay and electromagnetic interference.

[0052] Significant advantages in ease of maintenance and cost: The "connected counter-current air passage + symmetrical piston" structure allows the two sliding platforms to automatically center and align when the machine stops, eliminating the tedious manual alignment required in traditional equipment and reducing manual adjustment errors and maintenance workload. The "screw + spring" floating protection design between the connecting plate and the mounting plate, compared to rigid connections or electronic overload protection, can better absorb impact energy, reduce damage to core components such as the cylinder and piston rod, extend the service life of vulnerable parts, and reduce equipment maintenance frequency and overall maintenance costs.

[0053] The integrated design offers wider adaptability: By adopting an integrated layout of functional components, functions such as mutually exclusive transmission, precise positioning, automatic alignment, and overload protection are highly integrated into an integral single-cylinder structure, making the overall mechanism more compact and significantly reducing the number of parts, which facilitates installation in small automated equipment with limited space.

[0054] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A mutually exclusive telescopic drive mechanism, characterized in that, include: The cylinder body includes a first piston chamber and a second piston chamber parallel to the first piston chamber. A first piston assembly is disposed in the first piston chamber; The second piston assembly is disposed in the second piston chamber; A mutual exclusion assembly, connected to the cylinder body, is used to control the first piston assembly and the second piston assembly to extend and retract in opposite directions; The mutually exclusive component includes: a first telescopic rod, a second telescopic rod, and a gear. The gear is rotatably connected to the cylinder body. The first telescopic rod has a first rack portion, and the second telescopic rod has a second rack portion. The first rack portion and the second rack portion are arranged in parallel and mesh with the gear. The first telescopic rod is also connected to the first piston assembly, and the second telescopic rod is also connected to the second piston assembly. The cylinder body is provided with a first insertion cavity and a second insertion cavity parallel to the first insertion cavity. The second insertion cavity is arranged parallel to the first piston chamber. The first telescopic rod is inserted into the first insertion cavity, and the second telescopic rod is inserted into the second insertion cavity.

2. The mutually exclusive telescopic drive mechanism according to claim 1, characterized in that, The first insertion cavity and the second insertion cavity are located between the first piston chamber and the second piston chamber.

3. The mutually exclusive telescopic drive mechanism according to claim 1, characterized in that, The first piston assembly and the second piston assembly have the same structure, both including: a piston and a piston rod connected to the piston.

4. The mutually exclusive telescopic drive mechanism according to any one of claims 1 to 3, characterized in that, The first piston chamber is further provided with a first counter-impact piston, and the second piston chamber is further provided with a second counter-impact piston. The first counter-impact piston is located behind the first piston assembly, and the second counter-impact piston is located behind the second piston assembly. The first counter-impact piston and the second counter-impact piston are controlled by the same driving air source.

5. The mutually exclusive telescopic drive mechanism according to claim 4, characterized in that, The cylinder body is also provided with a first guide assembly and a second guide assembly. The first guide assembly and the second guide assembly are arranged in parallel to each other. The first guide assembly is connected to the same end of the first piston assembly and the first telescopic rod, and the second guide assembly is connected to the same end of the second piston assembly and the second telescopic rod.

6. The mutually exclusive telescopic drive mechanism according to claim 5, characterized in that, The first guide component and the second guide component have the same structure, both including: a guide rail and a slider slidably connected to the guide rail, the guide rail being fixedly connected to the bottom of the cylinder body.

7. The mutually exclusive telescopic drive mechanism according to claim 6, characterized in that, The first guide assembly is connected to the first piston assembly and the first telescopic rod, and the second guide assembly is connected to the second piston assembly and the second telescopic rod through connecting components.

8. The mutually exclusive telescopic drive mechanism according to claim 7, characterized in that, The connecting assembly includes: a mounting plate and a connecting plate connected to the mounting plate, the mounting plate being connected to the slider, and the connecting plate being connected to the same side end of the first piston assembly and the first telescopic rod, or connected to the same side end of the second piston assembly and the second telescopic rod.

9. The mutually exclusive telescopic drive mechanism according to claim 8, characterized in that, The connecting plate is also provided with a buffer component, which is positioned on one side facing the cylinder body.

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