Mechanical self-locking clamping mechanism and carrying and moving equipment

Abstract

The utility model discloses a mechanical self-locking clamping mechanism and carrying and moving equipment, and relates to the technical field of clamping mechanisms, the mechanical self-locking clamping mechanism comprises a rack plate, a mounting plate, a driving device and a connecting rod assembly; the rack plate is used for being fixedly connected with the carrying and moving equipment, and the carrying and moving equipment is provided with a first clamping block; the first end of the mounting plate is movably connected with the rack plate through a connecting plate, and the second end of the mounting plate is used for mounting a second clamping block; under the driving action of the driving device, the connecting rod assembly drives the mounting plate to rotate around the first end of the mounting plate, so that the second clamping block located at the second end of the mounting plate gets close to the first clamping block to clamp a workpiece. According to the technical scheme provided by the utility model, the clamping strength of the clamping mechanism on the workpiece can be improved, so that displacement between the workpiece and the clamping mechanism under the action of external force is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping mechanisms, and particularly relates to a mechanical self-locking clamping mechanism and a handling and moving device. Background Art

[0002] With the rapid development of the mechanical automation processing industry, clamping mechanisms are increasingly replacing manual labor for repetitive and dangerous workpiece fixing operations; for example, in a handling and moving device, after the workpiece is clamped and fixed by the clamping mechanism, the clamping mechanism and the workpiece are then carried and moved together.

[0003] In the prior art, due to the inverted design of the clamping mechanism and the relatively heavy weight of the workpiece to be carried, the clamping mechanism needs to simultaneously bear the functions of clamping and supporting the workpiece. Therefore, higher requirements are imposed on the clamping strength of the clamping mechanism, and the clamping mechanism is required to be configured with a self-locking structure to ensure that the clamping mechanism will not become loose during the handling and moving process of the workpiece, thereby reducing the risk of the workpiece falling.

[0004] It should be noted that the above content is only used to assist in understanding the technical solution of the present utility model, and does not represent an admission that the above content is the prior art. Summary of the Utility Model

[0005] The main object of the present utility model is to propose a mechanical self-locking clamping mechanism and a handling and moving device, aiming to improve the clamping strength of the clamping mechanism for the workpiece, and at the same time configure a self-locking structure to ensure that the clamping mechanism will not become loose during the handling and moving process of the workpiece.

[0006] To achieve the above object, the present utility model proposes a mechanical self-locking clamping mechanism, which is applied to a handling and moving device; specifically, the mechanical self-locking clamping mechanism includes:

[0007] A frame plate, which is used for fixedly connecting with the handling and moving device, wherein a first clamping block is installed on the handling and moving device; a first locking block is arranged on the frame plate;

[0008] A mounting plate, the first end of the mounting plate is movably connected with the frame plate through a connecting plate, and the second end of the mounting plate is used for installing a second clamping block;

[0009] A driving device and a connecting rod assembly, the driving end of the driving device is movably connected with the mounting plate through the connecting rod assembly, wherein a second locking block is installed on the connecting rod assembly; under the driving action of the driving device, the connecting rod assembly drives the mounting plate to rotate around the first end of the mounting plate, so that the second clamping block located at the second end of the mounting plate moves closer to the first clamping block to clamp the workpiece, and at this time the first locking block and the second locking block are locked and fixed to each other.

[0010] In one embodiment, the link assembly includes a first link and a second link, wherein the first link has an arc-shaped structure; a first end of the first link is movably connected to the connecting plate, an arc-shaped middle portion of the first link is movably connected to a driving rod of the driving device, a second end of the first link is movably connected to a first end of the second link, and a second end of the second link is movably connected to a middle position of the mounting plate.

[0011] In one embodiment, the second locking block is installed at a first end position of the first link.

[0012] In one embodiment, the driving device is fixedly connected to the frame plate, and the driving device adopts a linear driving structure.

[0013] In one embodiment, the first locking block and the second locking block are locked to each other in an interference fit manner; alternatively, the first locking block and the second locking block are locked to each other in a magnetic adsorption manner.

[0014] In one embodiment, the frame plate is provided with a first limiting block, and the mounting plate is provided with a second limiting block; when the first clamping block and the second clamping block cooperate to clamp the workpiece, the first limiting block and the second limiting block are fitted with each other.

[0015] In one embodiment, a plurality of first mounting holes are provided at a second end of the mounting plate, and at least two second mounting holes are provided in the second clamping block; the mechanical self-locking clamping mechanism includes a fixing bolt, and the fixing bolt is used to sequentially pass through the first mounting hole and the second mounting hole to fix the mounting plate and the second clamping block to each other;

[0016] In one embodiment, the second mounting hole has a groove-shaped structure, and the fixing bolt is locked and slidably connected in the groove-shaped second mounting hole;

[0017] In one embodiment, one or both of the first clamping block and the second clamping block are provided with a concavo-convex structure on a surface facing the workpiece, and the concavo-convex structure is used for concavo-convex matching with the surface shape of the workpiece.

[0018] In one embodiment, a detection assembly is provided at a second end of the mounting plate, and the detection assembly includes a distance sensing device and a detection plate. The distance sensing device is fixedly connected to the mounting plate, and the detection plate is movably mounted on the mounting plate through an elastic member; a first surface of the detection plate is used to contact the workpiece, and the distance sensing device is used to sense the distance between a sensing end of the distance sensing device and a second surface of the detection plate.

[0019] To achieve the above object, the present utility model provides a handling and moving device, which includes the mechanical self-locking clamping mechanism as described in any one of the above.

[0020] The technical solution of the present utility model is that under the driving action of the driving device, the connecting rod assembly drives the mounting plate to rotate around the first end of the mounting plate, so that the second clamping block located at the second end of the mounting plate moves closer to the first clamping block to clamp the workpiece; wherein, a first locking block and a second locking block are respectively installed on the frame plate and the connecting rod assembly. When the first clamping block and the second clamping block cooperate to clamp the workpiece, the first locking block and the second locking block are locked and fixed to each other, thereby forming a self-locking structure, so that the connecting rod assembly keeps its position and posture unchanged relative to the frame plate; it can be understood that since the mounting plate is movable through the connecting rod assembly, when the connecting rod assembly keeps its position and posture unchanged, the mounting plate also correspondingly keeps its position and posture unchanged; at this time, the position of the second clamping block mounted on the mounting plate relative to the first clamping block also remains unchanged, that is to say, the first clamping block and the second clamping block always keep the clamping operation on the workpiece; thus, the purpose of improving the clamping strength of the clamping mechanism on the workpiece is achieved, and the displacement between the workpiece and the clamping mechanism under the action of external force is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model 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 utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0022] Figure 1 FIG. 13 is a schematic structural diagram of a first embodiment of the mechanical self-locking clamping mechanism provided by the present utility model (when the workpiece is in a non-clamped state);

[0023] Figure 2 FIG. 17 is a schematic structural diagram of a second embodiment of the mechanical self-locking clamping mechanism provided by the present utility model (when the workpiece is in a clamped state);

[0024] Figure 3 FIG. 21 is a schematic structural diagram of a third embodiment of the mechanical self-locking clamping mechanism provided by the present utility model (when the workpiece is in a clamped state);

[0025] Figure 4 FIG. 25 is a schematic structural diagram of the mechanical self-locking clamping mechanism provided by the present utility model after being installed on the handling and moving device;

[0026] Figure 5Schematic diagram of the structure of the second clamping block in an embodiment of the mechanical self-locking clamping mechanism provided by the present utility model.

[0027] Description of the reference numerals:

[0028] 1. Frame plate; 2. Handling and moving device; 3. First clamping block; 4. First locking block; 5. Mounting plate; 501. First mounting hole; 6. Second clamping block; 601. Second mounting hole; 602. Concave-convex structure; 7. Driving device; 701. Driving rod; 8. Link assembly; 801. First link; 802. Second link; 9. Second locking block; 10. Connecting plate; 11. First limiting block; 12. Second limiting block; 13. Detection assembly; 1301. Distance sensing device; 1302. Detection plate; 1303. Elastic member

[0029] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0030] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Obviously, the described ones are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, it should be noted that the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0033] In the prior art, the clamping strength of the clamping mechanism on the workpiece is relatively low. During the mechanical processing operation of the workpiece, the workpiece is prone to displacement relative to the clamping mechanism under the action of external forces, thereby affecting the mechanical processing accuracy of the workpiece.

[0034] To solve the above technical problems, the present utility model proposes a mechanical self-locking clamping mechanism and a handling and moving device.

[0035] Please refer to Figures 1-5 , in an embodiment of the present utility model, the mechanical self-locking clamping mechanism is applied to the handling and moving device 2; it should be noted that after those skilled in the art understand the technical solution of the present application, they can associate the above mechanical self-locking clamping mechanism with other mechanical processing equipment, such as hole processing or milling machine processing, without creative labor, and it should also fall within the protection scope of the present application.

[0036] Specifically, the mechanical self-locking clamping mechanism includes:

[0037] A frame plate 1, the frame plate 1 is used for fixedly connecting with the handling and moving device 2, wherein the handling and moving device 2 is provided with a first clamping block 3; the frame plate 1 is provided with a first locking block 4;

[0038] A mounting plate 5, the first end of the mounting plate 5 is movably connected with the frame plate 1 through a connecting plate 10, and the second end of the mounting plate 5 is used for mounting a second clamping block 6;

[0039] A driving device 7 and a connecting rod assembly 8, the driving end of the driving device 7 is movably connected with the mounting plate 5 through the connecting rod assembly 8, wherein the connecting rod assembly 8 is provided with a second locking block 9; under the driving action of the driving device 7, the connecting rod assembly 8 drives the mounting plate 5 to rotate around the first end of the mounting plate 5, so that the second clamping block 6 located at the second end of the mounting plate 5 moves closer to the first clamping block 3 to clamp the workpiece (not shown in the drawings), and at this time the first locking block 4 and the second locking block 9 are locked and fixed to each other.

[0040] The technical solution of the present utility model is that under the driving action of the driving device 7, the connecting rod assembly 8 is used to drive the mounting plate 5 to rotate around the first end of the mounting plate 5, so that the second clamping block 6 located at the second end of the mounting plate 5 moves closer to the first clamping block 3 to clamp the workpiece; wherein, a first locking block 4 and a second locking block 9 are respectively installed on the frame plate 1 and the connecting rod assembly 8. When the first clamping block 3 and the second clamping block 6 cooperate to clamp the workpiece, the first locking block 4 and the second locking block 9 are locked and fixed to each other, thereby forming a self-locking structure, so that the connecting rod assembly 8 keeps its position and posture unchanged relative to the frame plate 1; it can be understood that since the mounting plate 5 moves through the connecting rod assembly 8, when the connecting rod assembly 8 keeps its position and posture unchanged, the mounting plate 5 also keeps its position and posture unchanged accordingly; at this time, the position of the second clamping block 6 mounted on the mounting plate 5 relative to the first clamping block 3 also remains unchanged, that is to say, the first clamping block 3 and the second clamping block 6 always keep the clamping operation on the workpiece; thereby achieving the purpose of improving the clamping strength of the clamping mechanism on the workpiece and avoiding displacement between the workpiece and the clamping mechanism under the action of external force.

[0041] Specifically, the driving device 7 is fixedly connected to the frame plate 1, and the driving device 7 adopts a linear driving structure. With such a setting, the driving device 7 with a linear driving structure is used to drive the connecting rod assembly 8 to drive the mounting plate 5 to move, and the structure is simple and practical. In this embodiment, the driving device 7 can be selected as a hydraulic cylinder.

[0042] Among them, there are many specific structures of the above-mentioned connecting rod assembly 8; in this embodiment, refer to the attached Figures 1-3 , the connecting rod assembly 8 includes a first connecting rod 801 and a second connecting rod 802, wherein the first connecting rod 801 adopts an arc-shaped structure; the first end of the first connecting rod 801 is movably connected to the connecting plate 10, the arc-shaped middle part of the first connecting rod 801 is movably connected to the driving rod 701 of the driving device 7, the second end of the first connecting rod 801 is movably connected to the first end of the second connecting rod 802, and the second end of the second connecting rod 802 is movably connected to the middle position of the mounting plate 5. With such a setting, the driving device 7 drives the arc-shaped first connecting rod 801 to rotate around the first end of the first connecting rod 801, and the second connecting rod 802 located at the second end of the first connecting rod 801 drives the mounting plate 5 to rotate around the first end of the mounting plate 5 accordingly, so that the second clamping block 6 located at the second end of the mounting plate 5 moves closer to the first clamping block 3 to clamp the workpiece, so as to ensure the smooth implementation of the technical solution of the present application. Among them, compared with the linear structure, with the same rotation amplitude of the mounting plate 5, the arc-shaped first connecting rod 801 can drive the mounting plate 5 to rotate in a narrower space, so that the space occupancy rate of the connecting rod assembly 8 is lower, laying a foundation for the miniaturization development direction of the clamping mechanism.

[0043] Preferably, the second locking block 9 is installed at the first end position of the first connecting rod 801. With such a setting, considering that the first end of the first connecting rod 801 is movably connected to the connecting plate 10 and is relatively closer to the frame plate 1; therefore, the second locking block 9 is installed at the first end position of the first connecting rod 801 to ensure that the first locking block 4 and the second locking block 9 can effectively contact and perform the locking operation.

[0044] Among them, there are many ways to lock the first locking block 4 and the second locking block 9 to each other;

[0045] In one embodiment, the first locking block 4 and the second locking block 9 are locked to each other by an interference fit. With such a setting, the first locking block 4 and the second locking block 9 are locked to each other by an interference fit, and they cannot be separated unless they meet the preset opening direction, so as to achieve the purpose of mutual locking.

[0046] In another embodiment, the first locking block 4 and the second locking block 9 are locked to each other by magnetic attraction. With such a setting, a first electromagnet with a first magnetism is installed on the first locking block 4, and a second electromagnet with a second magnetism is installed on the second locking block 9, where the first magnetism and the second magnetism attract each other; when the work is in the clamped state, the first locking block 4 and the second locking block 9 are in contact with each other. At this time, the first electromagnet and the second electromagnet are energized to make them have corresponding magnetisms, so that the first locking block 4 and the second locking block 9 are magnetically attracted to each other. When the workpiece is released from the clamped state, the first electromagnet and the second electromagnet are de-energized. At this time, the first electromagnet and the second electromagnet lose their magnetisms, so that the first locking block 4 and the second locking block 9 can be separated from each other.

[0047] It should be noted that after those skilled in the art understand the technical solution of the present application, they can think of other specific ways of locking the first locking block 4 and the second locking block 9 to each other without creative labor, which should also fall within the protection scope of the present application.

[0048] As a preferred solution of the above embodiment, referring to the attached Figures 1-3 , the frame plate 1 is provided with a first limiting block 11, and the mounting plate 5 is provided with a second limiting block 12; when the first clamping block 3 and the second clamping block 6 cooperate to clamp the workpiece, the first limiting block 11 and the second limiting block 12 are fitted with each other. With such a setting, through the cooperation of the first limiting block 11 and the second limiting block 12, the relative position between the mounting plate 5 and the frame plate 1 is limited, so that the position and attitude of the mounting plate 5 relative to the frame plate 1 remain unchanged, thereby further improving the clamping strength of the clamping mechanism on the workpiece. The first limiting block 11 and the second limiting block 12 can be locked and limited by an interference fit.

[0049] As a preferred solution of the above embodiment, referring to the attachedFigure 5 At the second end of the mounting plate 5, a plurality of first mounting holes 501 are provided, and at least two second mounting holes 601 are provided on the second clamping block 6; the mechanical self-locking clamping mechanism includes a fixing bolt (not shown in the drawings), and the fixing bolt is used to sequentially pass through the first mounting hole 501 and the second mounting hole 601 to fix the mounting plate 5 and the second clamping block 6 to each other; thus arranged, the mounting plate 5 and the second clamping block 6 are fixedly connected to each other through the fixing bolt, and the structure is simple and practical. Among them, a plurality of first mounting holes 501 are provided on the mounting plate 5. In actual operation, the operator can install the second clamping block 6 at any specific position on the mounting plate 5 to cooperate with the workpiece, so as to improve the clamping and fixing effect of the first clamping block 3 on the workpiece. And further, at least two second mounting holes 601 are provided on the second clamping block 6, so as to ensure that the second clamping block 6 can be firmly connected to the mounting plate 5 and ensure that there is no relative displacement between the two after installation.

[0050] Further, referring to the attached Figure 5 drawing, the second mounting hole 601 adopts a groove structure, and the fixing bolt can be locked and slidably connected in the groove-shaped second mounting hole 601; thus arranged, considering that although a plurality of first mounting holes 501 are provided on the mounting plate 5, it may not be possible to ensure 100% that the second clamping block 6 matches the surface shape of the workpiece in actual operation; based on the above consideration, in this embodiment, the second mounting hole 601 is designed into a groove structure, so that the second clamping block 6 can be adjusted in position along the groove direction of the second mounting hole 601 with the mounting plate 5. After adjusting to a suitable position, the fixing bolt is used to fix the two of them, so as to improve the success rate of the second clamping block 6 matching the surface shape of the workpiece.

[0051] Further, referring to the attached Figure 5 drawing, on the side surface of the first clamping block 3 and / or the second clamping block 6 facing the workpiece, there is a concavo-convex structure 602, and the concavo-convex structure 602 is used to cooperate with the concavo-convex shape of the surface of the workpiece. Thus arranged, considering that some workpieces adopt non-square structures, specifically, there are various concavo-convex shapes on their surfaces; therefore, it is necessary to provide a concavo-convex structure 602 on the side surface of the first clamping block 3 and the second clamping block 6 facing the workpiece, and use the concavo-convex structure 602 to cooperate with the concavo-convex shape of the surface of the workpiece, so as to ensure that the first clamping block 3 and the second clamping block 6 can effectively clamp and fix the workpiece.

[0052] As a preferred solution of the above embodiment, referring to the attached Figure 5, a detection component 13 is provided at the second end of the mounting plate 5. The detection component 13 includes a distance sensing device 1301 and a detection plate 1302. The distance sensing device 1301 is fixedly connected to the mounting plate 5, and the detection plate 1302 is movably mounted on the mounting plate 5 through an elastic member 1303; the first surface of the detection plate 1302 is used to contact the workpiece, and the distance sensing device 1301 is used to sense the distance between the sensing end of the distance sensing device 1301 and the second surface of the detection plate 1302. With such a setting, it is possible to judge whether the second clamping block 6 effectively contacts the workpiece for clamping through the detection component 13, and the structure is simple and practical. It can be understood that when the second clamping block 6 clamps the workpiece, the workpiece will exert a certain pressing force on the first surface of the detection plate 1302, and this pressing force drives the detection plate 1302 to move away from the workpiece along the elastic member 1303; at this time, the distance between the second surface of the detection plate 1302 and the sensing end of the distance sensing device 1301 is shortened. After the distance sensing device 1301 detects this distance shortening, it can judge that the second clamping block 6 has effectively contacted the workpiece for clamping at this time. In this embodiment, the above-mentioned elastic member 1303 can be a compression spring.

[0053] This embodiment also discloses a handling and moving device, which includes the mechanical self-locking clamping mechanism of any of the above embodiments. For the specific structure of the mechanical self-locking clamping mechanism, reference can be made to the above embodiments. Since this handling and moving device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0054] It should be noted that other contents of the mechanical self-locking clamping mechanism disclosed in the present invention are prior art and will not be elaborated here.

[0055] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All applications directly / indirectly using the present invention in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A mechanical self-locking clamping mechanism, which is applied to handling and mobile equipment; characterized in that, The mechanical self-locking clamping mechanism includes: A frame plate for fixedly connecting with the handling and moving device, wherein a first clamping block is installed on the handling and moving device; a first locking block is arranged on the frame plate; A mounting plate, the first end of which is movably connected with the frame plate through a connecting plate, and the second end of which is used for installing a second clamping block; A driving device and a connecting rod assembly, the driving end of the driving device is movably connected with the mounting plate through the connecting rod assembly, and a second locking block is installed on the connecting rod assembly; under the driving action of the driving device, the connecting rod assembly drives the mounting plate to rotate around the first end of the mounting plate, so that the second clamping block located at the second end of the mounting plate moves closer to the first clamping block to clamp the workpiece, and at this time the first locking block and the second locking block are locked and fixed to each other.

2. The mechanical self-locking clamping mechanism according to claim 1, characterized in that: The connecting rod assembly includes a first connecting rod and a second connecting rod, wherein the first connecting rod adopts an arc-shaped structure; the first end of the first connecting rod is movably connected with the connecting plate, the arc-shaped middle part of the first connecting rod is movably connected with the driving rod of the driving device, the second end of the first connecting rod is movably connected with the first end of the second connecting rod, and the second end of the second connecting rod is movably connected with the middle position of the mounting plate.

3. The mechanical self-locking clamping mechanism according to claim 2, characterized in that: The second locking block is installed at the first end position of the first connecting rod.

4. The mechanical self-locking clamping mechanism according to claim 1, characterized in that: The driving device is fixedly connected with the frame plate, and the driving device adopts a linear driving structure.

5. The mechanical self-locking clamping mechanism according to claim 1, wherein: The first locking block and the second locking block are locked to each other in an interference fit manner; or, the first locking block and the second locking block are locked to each other in a magnetic adsorption manner.

6. The mechanical self-locking clamping mechanism according to claim 1, wherein: The frame plate is provided with a first limiting block, and the mounting plate is provided with a second limiting block; when the first clamping block and the second clamping block cooperate to clamp the workpiece, the first limiting block and the second limiting block are fitted with each other.

7. The mechanical self-locking clamping mechanism according to claim 1, wherein: A plurality of first mounting holes are arranged at the second end of the mounting plate, and at least two second mounting holes are arranged on the second clamping block; the mechanical self-locking clamping mechanism includes a fixing bolt for sequentially passing through the first mounting hole and the second mounting hole to fix the mounting plate and the second clamping block to each other; And, the second mounting hole adopts a groove-shaped structure, and the fixing bolt can be locked and slidably connected in the groove-shaped second mounting hole.

8. The mechanical self-locking clamping mechanism according to claim 1, wherein: One side surface of the first clamping block and / or the second clamping block facing the workpiece is provided with a concavo-convex structure for concavo-convex matching with the surface shape of the workpiece.

9. The mechanical self-locking clamping mechanism according to claim 1, wherein: A detection component is arranged at the second end of the mounting plate, and the detection component includes a distance sensing device and a detection plate. The distance sensing device is fixedly connected with the mounting plate, and the detection plate is movably installed on the mounting plate through an elastic member; the first surface of the detection plate is used for contacting with the workpiece, and the distance sensing device is used for sensing the distance between the sensing end of the distance sensing device and the second surface of the detection plate.

10. A handling and moving device, characterized in that: The handling and moving device includes the mechanical self-locking clamping mechanism according to any one of claims 1 to 9.

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