A single-driven connecting rod structure with lifting and moving functions

Abstract

The present invention relates to the field of automation technology, and discloses a link structure with lifting and moving functions driven by a single drive, including a base, a link assembly, a drive mechanism, a first stopper, and a second stopper; the link assembly includes a sliding seat, a first link, a lifting member, and a second link that are sequentially rotatably connected, and one end of the sliding seat away from the first link is rotatably connected to one end of the second link away from the lifting member, and the sliding seat is slidably connected to the base; the drive mechanism includes a driver and a transmission mechanism, and the transmission mechanism connects the driver and the link assembly; the first stopper is connected to the base and is arranged on the path of the link assembly moving along the first direction; the second stopper is connected to the base and is arranged on the path of the link assembly moving along the second direction. This application mainly solves the problem that the prior art cannot achieve horizontal movement and vertical lifting under the premise of a relatively compact space.

Description

Technical Field

[0001] The present invention relates to the technical field of automation, and in particular, to a link structure with lifting and moving functions driven by a single drive. Background Art

[0002] To achieve the functions of horizontal movement and vertical lifting, generally two power sources are required in the prior art. One power source is used to drive the component to move horizontally, and the other power source is used to drive the component to lift vertically. Among the power source options, the two devices of cylinder and motor directly connected to the lead screw are the most commonly used. However, for the functional requirements of space compactness and the need to achieve both horizontal movement and vertical lifting, the structural design using two power sources cannot meet the requirements. Therefore, the two power sources occupy a relatively large space volume, and in addition, the cost of the two power sources is also relatively high. Summary of the Invention

[0003] The purpose of the present invention is to provide a link structure with lifting and moving functions driven by a single drive, mainly to solve the technical problem that the prior art cannot achieve horizontal movement and vertical lifting under the premise of relatively compact space.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A link structure with lifting and moving functions driven by a single drive, comprising:

[0006] A base;

[0007] A link assembly, including a slide base, a first link, a lifting member, and a second link that are sequentially rotatably connected. Moreover, one end of the slide base away from the first link is rotatably connected to one end of the second link away from the lifting member, so that the link assembly forms a quadrilateral structure with deformation characteristics, and the slide base is slidably connected to the base;

[0008] A drive mechanism, including a driver and a transmission mechanism. The transmission mechanism connects the driver and the link assembly. The transmission mechanism is used to raise the lifting member relative to the slide base to the highest point; the driver is used to drive the link assembly to move linearly along a first direction or a second direction opposite to the first direction through the transmission mechanism;

[0009] A first blocking member, connected to the base and disposed on the path of the link assembly moving along the first direction, for blocking the lifting member, so that the lifting member at the highest point can gradually approach the slide base and descend to a required preset height;

[0010] The second stopper is connected to the base and is disposed on the path of the link assembly moving along the second direction, and is used to block the sliding seat so that the lifting member at the highest point can gradually approach the sliding seat and descend to the initial in-situ height.

[0011] In one embodiment, the transmission mechanism includes an adapter block, a drive rod, and an elastic member;

[0012] The driver is connected to the adapter block and is used to drive the adapter block to move linearly along the first direction or the second direction;

[0013] One end of the drive rod is rotatably connected to the adapter block, and the other end of the drive rod is rotatably connected to the first link or the second link;

[0014] The elastic member is connected to the adapter block and the sliding seat, and the elastic member is used to apply a force pointing in the second direction to the sliding seat, and the elastic member is used to apply a force pointing in the first direction to the adapter block.

[0015] In one embodiment, the adapter block is slidably connected to the base, and the direction in which the adapter block slides relative to the base is parallel to the direction in which the sliding seat slides relative to the base.

[0016] In one embodiment, a linear guide is connected to the base, the length direction of the linear guide is arranged along the first direction, and both the adapter block and the sliding seat are slidably connected to the linear guide.

[0017] In one embodiment, the connection point between the adapter block and the drive rod is located in the second direction of the sliding seat, and the elastic member is a tension spring.

[0018] In one embodiment, the lifting member includes a lifting body and a roller, the roller is rotatably connected to the lifting body, and the first stopper is disposed on the path of the roller moving along the first direction.

[0019] In one embodiment, the lifting body includes a connected lifting main body and a mounting seat, the roller is rotatably connected to the mounting seat, and an adjustment hole is formed in the mounting seat, and the adjustment direction in which the adjustment hole extends points to the first direction.

[0020] In one embodiment, the driver is a single-axis driver, the driver includes a connected driving main body and a transmission member, the driving main body is used to drive the transmission member to move linearly along the first direction or the second direction, and one of the driving main body and the transmission member is connected to the base, and the other is connected to the adapter block.

[0021] In one embodiment, the driver is a cylinder.

[0022] Compared with the prior art, the single-drive link structure with lifting and moving functions provided by the present invention has at least the following beneficial effects:

[0023] During operation, the driver drives the link assembly to move linearly in the first direction or the second direction through the transmission mechanism. Equivalently, the driver can drive the lifting member to move linearly in the first direction or the second direction, and at this time, the function of horizontal movement of the lifting member is realized. Specifically, when the link assembly encounters the first blocking member during the movement in the first direction under the drive of the driver, due to the deformation characteristics of the quadrilateral structure, at this time, both the first link and the second link will rotate relative to the sliding seat, so that the lifting member gradually approaches the sliding seat from the highest point and descends to the required preset height value; when the link assembly returns in the second direction under the drive of the driver, the lifting member will be driven by the transmission mechanism to return to the highest point again. When the sliding seat encounters the second blocking member, due to the deformation characteristics of the quadrilateral structure, at this time, both the first link and the second link will also rotate relative to the sliding seat, so that the lifting member gradually approaches the sliding seat from the highest point and descends to the initial in-place height value. It can be seen that only one driver can enable the lifting member to realize both the horizontal movement and the vertical lifting functions in this technical solution. Therefore, this technical solution can meet the design requirements for high space compactness and the need to realize both horizontal movement and vertical lifting at the same time, and also greatly reduces the cost of realizing the horizontal movement and vertical lifting functions. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the structure of a single-drive link structure with lifting and moving functions provided by an embodiment of the present application in the original position;

[0026] Figure 2 is Figure 1 a specific structural schematic diagram of the shown structure;

[0027] Figure 3 It is a schematic diagram of the structure of a single-drive link structure with lifting and moving functions provided by an embodiment of the present application in the middle position;

[0028] Figure 4 is Figure 3 a specific structural schematic diagram of the shown structure;

[0029] Figure 5 This is a structural schematic diagram of a single - drive link structure with lifting and moving functions provided by an embodiment of the present application in its final position;

[0030] Figure 6 is Figure 5 a specific structural schematic diagram of the structure shown.

[0031] Among them, the reference numerals in the figure are as follows:

[0032] 10, base; 101, linear guide rail; 102, slider;

[0033] 20, link assembly; 201, sliding seat; 202, first link; 203, lifting member; 2031, lifting main body; 20311, lifting body; 20312, mounting seat; 203121, adjustment hole; 2032, roller; 204, second link;

[0034] 30, drive mechanism; 301, driver; 3011, drive main body; 3012, transmission member; 302, transmission mechanism; 3021, adapter block; 3022, drive rod; 3023, elastic member;

[0035] 40, first stopper; 50, second stopper. Detailed implementation manners

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear, the following further details the present application with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0039] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless specifically defined otherwise.

[0040] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0041] Please refer to Figure 1 and Figure 2 , this embodiment provides a single-driven link structure with lifting and moving functions, including a base 10, a link assembly 20, a driving mechanism 30, a first stopper 40 and a second stopper 50.

[0042] Among them, a linear guide rail 101 is installed on the base 10. The length direction of the linear guide rail 101 is parallel to the first direction. A slider 102 is slidably connected to the linear guide rail 101. The slider 102 can slide freely along Figure 1 and Figure 2 the first direction or the second direction shown in.

[0043] Among them, the link assembly 20 includes a sliding seat 201, a first link 202, a lifting member 203 and a second link 204. One end of the sliding seat 201 and one end of the first link 202 are hinged at Figure 1 C in Figure 1 . The other end of the sliding seat 201 and one end of the second link 204 are hinged at Figure 1 D in Figure 1 . One end of the first link 202 away from the sliding seat 201 and one end of the lifting member 203 are hinged at Figure 1 A in Figure 1When point D in it rotates relative to the slide base 201, the lifting member 203 can approach or move away from the slide base 201, that is, the lifting member 203 can move upward or downward. Further, the slide base 201 is fixed on the above-mentioned slider 102, so that the link assembly 20 can slide freely as a whole in the first direction or the second direction. However, the slide base 201 of the present application is not limited to adopting the structure of the linear guide rail 101 and the slider 102 to realize the function of moving in the first direction or the second direction. In other embodiments, the slide base 201 can also realize the function of moving in the first direction or the second direction by adopting a guide rod.

[0044] Wherein, the driving mechanism 30 includes a connected driver 301 and a transmission mechanism 302. The transmission mechanism 302 is connected to the link assembly 20. The driver 301 is used to drive the link assembly 20 to move linearly in the first direction or the second direction through the transmission mechanism 302. The transmission mechanism 302 plays a role in raising the lifting member 203 relative to the slide base 201 to the highest position, so that when the link assembly 20 moves to the working position in the first direction later, the lifting member 203 can touch the first stopper 40 and gradually descend, and it is also convenient for the lifting member 203 to descend to the initial original position when the link assembly 20 moves and resets in the second direction. Specifically, if there is no transmission mechanism 302, during the process of the link assembly 20 moving linearly in the first direction or the second direction, the first link 202 and the second link 204 may spontaneously rotate relative to the slide base 201. At this time, the distance between the lifting member 203 and the slide base 201 will also change. Therefore, the transmission mechanism 302 can keep the lifting member 203 at the highest position, so as to prevent the link assembly 20 from deforming spontaneously before touching the first stopper 40 or the second stopper 50.

[0045] Please refer to again Figure 1 and Figure 2 To achieve the above functions of the transmission mechanism 302, the transmission mechanism 302 of this embodiment specifically includes an adapter block 3021, a driving rod 3022 and an elastic member 3023. Among them, the adapter block 3021 is connected to the above-mentioned driver 301. The driver 301 can drive the adapter block 3021 to move linearly in the first direction or the second direction. To ensure the accuracy of the movement, the adapter block 3021 is also slidably connected to the linear guide rail 101 through the slider 102. One end of the driving rod 3022 is hinged to the adapter block 3021 at point E in Figure 1 and the other end of the driving rod 3022 is at Figure 1At point F in it, it is hinged to the first connecting rod 202 or the second connecting rod 204. The elastic member 3023 is connected to the adapter block 3021 and the sliding seat 201. The elastic member 3023 has elasticity. The elastic member 3023 can apply a force pointing to the second direction to the sliding seat 201. Moreover, the elastic member 3023 can also apply a force pointing to the first direction to the adapter block 3021, so that there is a tendency for the adapter block 3021 and the sliding seat 201 to move closer to each other. Furthermore, the driving rod 3022 can push the first connecting rod 202 or the second connecting rod 204 to keep the lifting member 203 at the highest position all the time. Only when the adapter block 3021 and the sliding seat 201 are separated from each other by an external force, the lifting member 203 will descend relative to the sliding seat 201. In this embodiment, the elastic member 3023 is preferably a tension spring. One hook of the elastic member 3023 is hung on the sliding seat 201, and the other hook of the elastic member 3023 is hung on the adapter block 3021. In other embodiments, the elastic member 3023 can also be a spring.

[0046] In this embodiment, the above-mentioned driver 301 is preferably a single-axis driver, that is, the driver 301 includes a connected driving body 3011 and a transmission member 3012. The driving body 3011 is fixed on the base 10. The transmission member 3012 is fixedly connected to the above-mentioned adapter block 3021. The driving body 3011 can drive the transmission member 3012 to move linearly in the first direction or the second direction. The transmission member 3012 will drive the adapter block 3021 to move linearly in the first direction or the second direction. The adapter block 3021 will pull or push the link assembly 20 to move linearly in the first direction or the second direction through the driving rod 3022. Of course, the driving body 3011 can also be fixedly connected to the adapter block 3021, and the transmission member 3012 is fixed on the base 10. At this time, the function of driving the link assembly 20 to move linearly in the first direction or the second direction can also be realized. In addition, the driver 301 in this embodiment is preferably a cylinder. The driving body 3011 is a cylinder block, and the transmission member 3012 is a piston rod. In other embodiments, the driver 301 can be a screw module directly connected to a motor, a belt transmission module or a linear motor.

[0047] Please refer to Figure 5 and Figure 6 , the first stopper 40 is provided on the path of the link assembly 20 moving in the first direction. The first stopper 40 is used to block the lifting member 203 so that the lifting member 203 cannot continue to move in the first direction.

[0048] Please refer to Figure 1 and Figure 2 again, the second stopper 50 is provided on the path of the link assembly 20 moving in the second direction. The second stopper 50 is used to block the sliding seat 201 so that the sliding seat 201 cannot continue to move in the second direction.

[0049] The specific working principle of the single-drive connecting rod structure with lifting and moving functions in this embodiment can be elaborated in detail through the following five paragraphs:

[0050] Please refer to Figure 1 and Figure 2 , Figure 1 and Figure 2 As shown in

[0051] and Figure 3 and Figure 4 , the initial position of the connecting rod assembly 20 is shown. At this time, the driver 301 exerts a force on the adapter block 3021 in the second direction. At this time, the slide block 201 is blocked by the second stopper 50, and the elastic member 3023 cannot pull the slide block 201 to continue moving forward in the second direction. In other words, at this time, the elastic member 3023 is in a stretched state, and the distance between the adapter block 3021 and the slide block 201 is relatively far. The driving rod 3022 pulls the first connecting rod 202 and the second connecting rod 204 to rotate a certain angle relative to the slide block 201 in the second direction, so that the lifting member 203 is relatively close to the slide block 201 and is at the initial in-situ height relative to the slide block 201; Figure 2 As shown in Figure 3 and Figure 4 , at this time, the driver 301 pulls the adapter block 3021 to move a certain distance in the first direction, thereby driving the connecting rod assembly 20 to move a certain distance in the first direction. However, the connecting rod assembly 20 at this position has not yet touched the first stopper 40. It is equivalent to that at this time, the slide block 201 moves away from the second stopper 50 in the first direction. And, under the action of the elastic member 3023, compared with the structure shown in

[0052] Please refer to Figure 5 and Figure 6 , relative to Figure 3 and Figure 4For the position of the link assembly 20 shown, at this time, the driver 301 continues to pull the adapter block 3021 to move a certain distance in the first direction, thereby driving the link assembly 20 to move a certain distance in the first direction. And at this time, the link assembly 20 has already touched the first stopper 40. At this time, the first stopper 40 exerts a force on the lifting member 203 in the first direction. Due to the deformation characteristics of the link assembly 20, at this time, the lifting member 203 drives the first link 202 and the second link 204 to rotate a certain angle relative to the sliding seat 201 in the first direction, so that the lifting member 203 is closer to the sliding seat 201 and is at a preset height value relative to the sliding seat 201. At this time, the lifting member 203 can be used to exert a downward force on an object to achieve the function of pressing an object. More specifically, due to the deformation characteristics of the link assembly 20, at this time, the first link 202 and the second link 204 push the sliding seat 201 away from the adapter block 3021 by a certain distance, that is, the elastic member 3023 is in a stretched state at this time;

[0053] Please refer to again together Figure 3 and Figure 4 When resetting, the driver 301 pushes the adapter block 3021 to move a certain distance in the second direction, thereby driving the link assembly 20 to move a certain distance in the second direction. However, at this time, the link assembly 20 has not touched the second stopper 50 yet. Under the action of the elastic member 3023, the sliding seat 201 and the adapter block 3021 approach each other by a certain distance again. At this time, the drive rod 3022 drives the first link 202 and the second link 204 to rotate a certain angle relative to the sliding seat 201 in the first direction, so that the lifting member 203 returns to the highest position point relative to the sliding seat 201 again;

[0054] Please refer to again together Figure 1 and Figure 2 relative to Figure 3 and Figure 4 For the position of the link assembly 20 shown, at this time, the driver 301 continues to pull the adapter block 3021 to move a certain distance in the second direction, thereby driving the link assembly 20 to move to the initial position in the second direction. At this time, since the second stopper 50 blocks the sliding seat 201, under the action of the driver 301, the adapter block 3021 moves away from the sliding seat 201. At this time, the drive rod 3022 pulls the first link 202 and the second link 204 to rotate a certain angle relative to the sliding seat 201 in the second direction, so that the lifting member 203 drops back to the original position height relative to the sliding seat 201. During the process of the link assembly 20 moving and resetting in the second direction, the gradual descent of the lifting member 203 can avoid external components, so that the lifting member 203 can be accommodated in a compact space, thus meeting the design requirements with extremely high requirements for component space compactness.

[0055] For further information, see Figure 2 The lifting member 203 includes a lifting body 2031 and a roller 2032, the roller 2032 is rotatably connected to the lifting body 2031, and the first blocking member 40 is arranged on the path of the roller 2032 moving along the first direction. By arranging the roller 2032, when the lifting member 203 hits the first blocking member 40, the roller 2032 will gradually slide down along the outer wall of the first blocking member 40 and rotate relative to the lifting body 2031. In other words, when the lifting member 203 hits the first blocking member 40, the lifting body 2031 can gradually descend in the form of sliding friction, so as to avoid the lifting body 2031 and the first blocking member 40 from affecting the motion accuracy due to excessive wear. The descent of the lifting body 2031 can be used to apply a downward force to an object, thereby realizing the function of pressing the object.

[0056] For further information, please refer again to Figure 2 The lifting body 2031 also includes a lifting body 20311 and a mounting seat 20312, the lifting body 20311 and the mounting seat 20312 are fixedly connected, the mounting seat 20312 is used to install the roller 2032, and an adjustment hole 203121 is opened on the mounting seat 20312, the adjustment hole 203121 is a waist-shaped hole, the adjustment direction of the adjustment hole 203121 is parallel to the first direction, and is used to adjust the relative position of the roller 2032 on the mounting seat 20312 along the first direction or the second direction, thereby adjusting the height value of the lifting body 20311 relative to the slide 201.

[0057] To sum up, the present technical solution only uses one driver 301 to enable the lifting component 203 to simultaneously realize the functions of horizontal movement and vertical lifting. Therefore, the present technical solution can meet the design requirements of having high requirements for compact space and realizing horizontal movement and vertical lifting at the same time, and it also greatly reduces the cost of realizing the horizontal movement and vertical lifting functions.

[0058] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for explaining the principles of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementations of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A single-driven connecting rod structure with lifting and moving functions, characterized in that, Comprising: Base; Linkage assembly, including a sliding seat, a first link, a lifting member, and a second link that are sequentially rotatably connected. Moreover, one end of the sliding seat away from the first link is rotatably connected to one end of the second link away from the lifting member, so that the linkage assembly forms a quadrilateral structure with deformation characteristics, and the sliding seat is slidably connected to the base; Drive mechanism, including a driver and a transmission mechanism. The transmission mechanism connects the driver and the linkage assembly, and the transmission mechanism is used to raise the lifting member relative to the sliding seat to the highest point; the driver is used to drive the linkage assembly to move linearly along a first direction or a second direction opposite to the first direction through the transmission mechanism; First blocking member, connected to the base and disposed on the path of the linkage assembly moving along the first direction, for blocking the lifting member, so that the lifting member at the highest point can gradually approach the sliding seat and descend to a required preset height; Second blocking member, connected to the base and disposed on the path of the linkage assembly moving along the second direction, for blocking the sliding seat, so that the lifting member at the highest point can gradually approach the sliding seat and descend to the initial in-situ height.

2. The single-drive link structure with lifting and moving functions according to claim 1, wherein The transmission mechanism includes an adapter block, a drive rod, and an elastic member; The driver is connected to the adapter block and is used to drive the adapter block to move linearly along the first direction or the second direction; One end of the drive rod is rotatably connected to the adapter block, and the other end of the drive rod is rotatably connected to the first link or the second link; The elastic member is connected to the adapter block and the sliding seat, and the elastic member is used to apply a force pointing in the second direction to the sliding seat, and the elastic member is used to apply a force pointing in the first direction to the adapter block.

3. The single-drive link structure with lifting and moving functions according to claim 2, characterized in that, The adapter block is slidably connected to the base, and the direction in which the adapter block slides relative to the base is parallel to the direction in which the sliding seat slides relative to the base.

4. The single-drive connecting rod structure with lifting and moving functions according to claim 3, wherein, A linear guide rail is connected to the base, and the length direction of the linear guide rail is arranged along the first direction. Both the adapter block and the sliding seat are slidably connected to the linear guide rail.

5. The single-driven link structure with lifting and moving functions according to claim 2, wherein, The connection point between the adapter block and the drive rod is located in the second direction of the sliding seat, and the elastic member is a tension spring.

6. The single-driven link structure with lifting and moving functions according to claim 1, characterized in that, The lifting member includes a lifting main body and a roller. The roller is rotatably connected to the lifting main body, and the first blocking member is disposed on the path of the roller moving along the first direction.

7. The single-drive link structure with lifting and moving functions according to claim 6, characterized in that, The lifting main body includes a connected lifting body and a mounting seat. The roller is rotatably connected to the mounting seat, and an adjustment hole is provided in the mounting seat, and the adjustment direction in which the adjustment hole extends points to the first direction.

8. The single-drive link structure with lifting and moving functions according to claim 2, characterized in that, The driver is a single-axis driver. The driver includes a connected driving body and a transmission member. The driving body is used to drive the transmission member to move linearly along the first direction or the second direction, and one of the driving body and the transmission member is connected to the base, and the other is connected to the adapter block.

9. The single-drive link structure with lifting and moving functions according to claim 8, characterized in that, The driver is a cylinder.

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