Clamping mechanism and lifting turnover device

Abstract

The utility model relates to the technical field of operation auxiliary equipment, and discloses a clamping mechanism and a lifting turnover device. The lifting turnover device comprises a clamping mechanism, and the clamping mechanism comprises a bearing frame, two clamping end frames, two first driving assemblies and a plurality of clamping parts. The two clamping end frames are arranged at intervals in the first direction and movably connected with the bearing frame. The two first driving assemblies are arranged on the bearing frame and can drive the two clamping end frames to get close to or get away from each other in the first direction, clamping parts which are symmetrically arranged are installed on the two clamping end frames correspondingly, and each clamping part comprises a second driving assembly, a transmission assembly and a clamping piece; the clamping piece is connected with the output end of the second driving assembly through the transmission assembly, the clamping piece is supported at the bottom of the workpiece, and the second driving assembly can drive the clamping piece to synchronously get close to the other clamping part in the first direction and get close to the bearing frame in the vertical direction. The clamping mechanism is high in workpiece clamping reliability and high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of operation auxiliary equipment, in particular to a clamping mechanism and a lifting and turning device. Background Art

[0002] The base of the environmental test chamber is usually welded by channel steel, steel plate, etc. It is a flat square frame structure with heavy weight. During the production process, it is often necessary to adjust the height or tilt angle of the base to facilitate assembly and other operations. In some solutions, a lifting and flipping device is used to adjust the posture of the base. The lifting and flipping device includes a driving mechanism and a clamping mechanism. The clamping mechanism can fix the base, and the driving mechanism can drive the clamping mechanism and the base to move to the desired state.

[0003] The existing clamping mechanism includes a bracket, two cylinders and two clamping members, and the two cylinders drive the two clamping members to approach each other along a first direction, so as to clamp the base. Due to the heavy weight of the base, the clamping reliability of the base by this clamping mechanism is poor, and the base will fall after the cylinder accidentally releases pressure, thereby causing a safety accident.

[0004] Therefore, a clamping mechanism and a lifting and flipping device are urgently needed to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a clamping mechanism, which has high reliability and safety in clamping a workpiece.

[0006] Another purpose of the utility model is to provide a lifting and flipping device, which has good safety by adopting the above-mentioned clamping mechanism.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The clamping mechanism comprises:

[0009] Carrying frame;

[0010] Two clamping end frames are arranged at intervals along the first direction and are movably connected to the bearing frame respectively;

[0011] Two first driving assemblies, disposed on the carrier frame and capable of respectively driving the two clamping end frames to approach or move away from each other along the first direction;

[0012] The clamping part is symmetrically mounted on the two clamping end frames, and the clamping part includes a second driving assembly, a transmission assembly and a clamping member. The clamping member is connected to the output end of the second driving assembly through the transmission assembly, and the clamping member is supported on the bottom of the workpiece. The second driving assembly can drive the clamping member to synchronously approach the other clamping part along the first direction and approach the supporting frame along the vertical direction.

[0013] As an optional solution, the second drive assembly can output linear motion, and the second drive assembly can rotate relative to the clamping end frame;

[0014] The transmission assembly comprises:

[0015] A first vertical beam, fixedly connected to the clamping end frame;

[0016] A first connecting rod, one end of which is pivotally connected to the output end of the second driving assembly through a first pivot axis, a middle portion of which is pivotally connected to the first vertical beam through a second pivot axis, and the other end of which is pivotally connected to the clamping member through a third pivot axis;

[0017] A second connecting rod, one end of which is pivotally connected to the first vertical beam via a fourth pivot axis, and the other end of which is pivotally connected to the clamping member via a fifth pivot axis;

[0018] A connecting line between the second pivot axis and the fourth pivot axis, and a connecting line between the third pivot axis and the fifth pivot axis are both parallel to the vertical direction.

[0019] As an optional solution, the distance between the first pivot axis and the second pivot axis is greater than the distance from the second pivot axis to the third pivot axis.

[0020] As an optional solution, the clamping part also includes a second vertical beam and a cross beam, the second vertical beam is arranged parallel to the first vertical beam and connected to the clamping end frame, the cross beam is connected to the top of the first vertical beam and the second vertical beam, and the second drive assembly is pivotally connected to the cross beam.

[0021] As an optional solution, the clamping member includes a connecting portion and a supporting portion, the second connecting rod and the first connecting rod are both pivotally connected to the connecting portion, and the supporting portion is arranged parallel to the supporting frame.

[0022] As an optional solution, an anti-slip structure is provided on the supporting portion; or

[0023] An anti-skid pad is installed on the supporting part.

[0024] As an optional solution, the position of the clamping portion along the second direction on the clamping end frame is adjustable.

[0025] As an optional solution, at least two clamping parts are provided on each clamping end frame, and at least two clamping parts are spaced apart along the second direction.

[0026] As an optional solution, the support frame is provided with two slideways extending along the first direction;

[0027] The two ends of the clamping end frame along the second direction are respectively connected with pulleys, and the pulleys located at the two ends are respectively in rolling cooperation with the two slideways.

[0028] A lifting and turning device, comprising:

[0029] Two support mechanisms are arranged at intervals along a first direction;

[0030] Each of the bracket mechanisms is provided with a lifting drive mechanism, the output end of the lifting drive mechanism is connected to a flipping drive mechanism, and the lifting drive mechanism can drive the corresponding flipping drive mechanism to move up and down in the vertical direction;

[0031] The lifting and flipping device also includes a clamping mechanism. The output ends of the two flipping drive mechanisms are connected to the supporting frame and can drive the supporting frame to rotate around a flipping axis parallel to the first direction.

[0032] The beneficial effects of the utility model are:

[0033] In the clamping mechanism of the utility model, when the two first drive components drive the two clamping end frames to approach each other along the first direction, the clamping members located on the two clamping end frames can be respectively supported on the two ends of the bottom of the workpiece located in the first direction, and then when the second drive components located on the two clamping end frames drive the corresponding clamping members to move, the clamping members move relatively along the first direction, thereby clamping the workpiece in the first direction, and at the same time, the two clamping members move respectively in the vertical direction, thereby pressing the workpiece on the carrier. The clamping mechanism of this embodiment can clamp the workpiece in the first direction and press the workpiece against the carrier in the vertical direction, and the clamping of the workpiece is reliable and firm. When any of the first drive component or the second drive component is depressurized, the clamping member is still supported on the bottom of the workpiece to prevent the workpiece from falling, thereby improving the safety of the clamping mechanism.

[0034] The lifting and turning device of the utility model adopts the above-mentioned clamping mechanism, so the workpiece can be clamped reliably and safely. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a lifting and flipping device provided in a specific embodiment of the utility model;

[0036] Figure 2 It is a structural schematic diagram of a clamping mechanism provided in a specific embodiment of the utility model;

[0037] Figure 3 It is a schematic diagram of the clamping mechanism provided by the specific implementation mode of the utility model with part of the structure hidden.

[0038] In the figure:

[0039] 10. bracket mechanism; 11. H-shaped steel; 111. web plate; 112. flange plate; 12. accommodating space; 13. bottom plate; 14. top plate;

[0040] 20. Lifting drive mechanism;

[0041] 30. Flip driving mechanism;

[0042] 40. Clamping mechanism; 41. Carrying frame; 411. Slideway; 42. Clamping end frame; 421. First support member; 422. Second support member; 4221. Mounting hole; 43. Pulley; 44. Clamping part; 45. First drive assembly; 46. Second drive assembly; 47. Transmission assembly; 471. First vertical beam; 472. First connecting rod; 473. First pivot axis; 474. Second pivot axis; 475. Third pivot axis; 476. Second connecting rod; 477. Fourth pivot axis; 478. Fifth pivot axis; 48. Clamping member; 481. Connecting part; 482. Supporting part; 49. Second vertical beam; 410. Cross beam; 412. Anti-skid pad;

[0043] 50. Support mechanism; 51. Support inner frame; 52. Support outer frame. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0045] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0048] This embodiment provides a clamping mechanism and a lifting and flipping device. The lifting and flipping device can be used to clamp, lift and flip the workpiece so that the posture of the workpiece meets the processing requirements. In this embodiment, the workpiece can be the base of the environmental test box. In other embodiments, the workpiece can also be other parts with larger mass, which is not specifically limited here.

[0049] Figure 1 The X direction, Y direction and Z direction are three directions perpendicular to each other in space, the X direction and the Y direction represent the first direction and the second direction of the horizontal setting respectively, and the Z direction represents the vertical direction. Figure 1 As shown, the lifting and flipping device includes two bracket mechanisms 10, two lifting drive mechanisms 20, two flipping drive mechanisms 30, two support mechanisms 50 and a clamping mechanism 40. The two bracket mechanisms 10 are arranged along a first direction (i.e. Figure 1 The two support mechanisms 10 are arranged at intervals (in the X direction in the figure), each lifting drive mechanism 20 is correspondingly installed on a support mechanism 10, and each support mechanism 50 is correspondingly connected to the output end of a lifting drive mechanism 20 and is guided and matched with the corresponding support mechanism 10. The flipping drive mechanism 30 is installed on the support mechanism 50, so that the lifting drive mechanism 20 can drive the corresponding flipping drive mechanism 30 to move up and down in the vertical direction. The clamping mechanism 40 is located between the two support mechanisms 10 and is used to clamp the base. The output ends of the two flipping drive mechanisms 30 are connected to the clamping mechanism 40, and can drive the clamping mechanism 40 to rotate around the flipping axis parallel to the X direction.

[0050] When the lifting and flipping device of this embodiment is used to assemble the base, the clamping mechanism 40 can be first driven downward to a position close to the ground by two lifting drive mechanisms 20, so that the clamping mechanism 40 can directly grab the base placed on the ground; then the two lifting drive mechanisms 20 jointly drive the clamping mechanism 40 and the base to a height sufficient for the base to flip; then the two flipping drive mechanisms 30 jointly drive the clamping mechanism 40 and the base to flip around a flip axis parallel to the first direction, so as to adjust the base to a desired tilt angle. The lifting and flipping device of this embodiment can automatically grasp, lift and flip the base, without the need for manual handling of the base, with high operating efficiency and low labor costs. In addition, since the mass of the base is large, the clamping mechanism 40 and the base are lifted and lowered by two lifting drive mechanisms 20, and the clamping mechanism 40 and the base are flipped by two flipping drive mechanisms 30, so that the force of the clamping mechanism 40 is balanced, and the lifting and flipping of the base are more stable.

[0051] like Figure 1 As shown, the support mechanism 10 includes a bottom plate 13, a top plate 14 and two H-shaped steels 11, wherein the bottom plate 13 is used to be placed on the ground, and holes are provided on the bottom plate 13 so that the bottom plate 13 can be fixed to the ground by bolts to improve the stability of the support of the support mechanism 10. The two H-shaped steels 11 are installed on the bottom plate 13 and extend in the vertical direction (i.e. Figure 1 The top plate 14 is installed on the top of the H-beam 11. Through the cooperation of the bottom plate 13, the top plate 14 and the two H-beams 11, the entire bracket mechanism 10 has a high structural strength. For the H-beam 11, its cross-section is H-shaped and includes a web 111 and two flange plates 112. In this embodiment, the webs 111 of the two H-beams 11 are relatively arranged along the second direction (i.e., the Y direction in the figure), and each web 111 is perpendicular to the second direction. The two flange plates 112 of each H-beam 11 are relatively arranged along the first direction (i.e., the X direction in the figure), and the flange plates 112 are perpendicular to the first direction, so at this time a accommodating space 12 is formed between the two H-beams 11.

[0052] like Figure 1As shown, the lifting drive mechanism 20 is installed on the top plate 14, and the output end extends downward into the accommodating space 12. The support mechanism 50 includes a support inner frame 51, which is arranged in the accommodating space 12 formed by the two H-shaped steels 11. The output end of the lifting drive mechanism 20 is connected to the support inner frame 51, and the flip drive mechanism 30 is installed on the support inner frame 51. The support mechanism 10 is composed of H-shaped steel 11, which not only has good structural strength, but also naturally forms an accommodating space 12 that can accommodate the output end of the lifting drive mechanism 20 and the flip drive mechanism 30, which not only protects the lifting drive mechanism 20 and the flip drive mechanism 30, but also prevents accidental injury to the operator. In this embodiment, the support mechanism 50 also includes a support outer frame 52 and a guide assembly (not shown), the support outer frame 52 is arranged around the outer periphery of the two H-shaped steels 11 and connected to the support inner frame 51, and the guide assembly is connected to the support outer frame 52 and cooperates with the H-shaped steel 11 to guide the lifting and lowering movement of the flip drive mechanism 30. The guide assembly can be a roller assembly, or can be a combination of a linear guide rail and a slider.

[0053] Optionally, the lifting drive mechanism 20 can be a component capable of outputting linear motion, such as an oil cylinder or an air cylinder, which is not specifically limited here. The flipping drive mechanism 30 can include a rotary motor, which can be directly connected to the clamping mechanism 40 or connected to the clamping mechanism 40 through a transmission structure, as long as it can drive the clamping mechanism 40 to rotate around an axis extending in the first direction.

[0054] like Figure 1 and Figure 2 As shown, the clamping mechanism 40 includes a carrier frame 41, two clamping end frames 42, two first drive assemblies 45 and a plurality of clamping parts 44. The output ends of the two flipping drive mechanisms 30 are respectively connected to the two ends of the carrier frame 41 along the first direction. The two clamping end frames 42 are arranged at intervals along the first direction and are movably mounted on the carrier frame 41. The two first drive assemblies 45 are both arranged on the carrier frame 41, and the two first drive assemblies 45 can respectively drive the two clamping end frames 42 to approach or move away from each other along the first direction. A clamping part 44 is installed on each clamping end frame 42, and the clamping parts 44 on the two clamping end frames 42 are symmetrically arranged. The clamping part 44 includes a second driving component 46, a transmission component 47 and a clamping member 48. The second driving component 46 is connected to the clamping end frame 42. The clamping member 48 is connected to the output end of the second driving component 46 through the transmission component 47. The clamping member 48 is supported on the bottom of the workpiece. The second driving component 46 can drive the clamping member 48 to synchronously approach another clamping part 44 along the first direction and approach the carrier 41 along the vertical direction.

[0055] When the clamping mechanism 40 of this embodiment is used to clamp a workpiece, when the two first drive components 45 drive the two clamping end frames 42 to approach each other along the first direction, the clamping members 48 located on the two clamping end frames 42 can be respectively supported at the two ends of the bottom of the base in the first direction, and then the second drive components 46 located on the two clamping end frames 42 drive the corresponding clamping members 48 to move, and the clamping members 48 move relatively along the first direction, thereby clamping the workpiece in the first direction, and at the same time, the two clamping members 48 move respectively in the vertical direction, thereby pressing the workpiece against the carrier 41. The clamping mechanism 40 of this embodiment can clamp the workpiece in the first direction and press the workpiece against the carrier 41 in the vertical direction, and the clamping of the workpiece is reliable and firm; when any of the first drive component 45 or the second drive component 46 fails to release pressure, the clamping member 48 is still supported at the bottom of the workpiece to prevent the workpiece from falling, thereby improving the safety of the clamping mechanism 40.

[0056] like Figure 2 As shown, the carrier 41 is a frame structure welded by a plurality of channel steels, which not only has good structural strength, but also is light in weight relative to the plate, thereby reducing the driving load of the lifting drive mechanism 20 and the flipping drive mechanism 30. The notches of the two channel steels extending along the first direction of the carrier 41 are arranged toward each other, thereby forming two slideways 411, and the two ends of the clamping end frame 42 along the second direction are respectively connected with pulleys 43, and the pulleys 43 located at the two ends of the clamping end frame 42 along the second direction are respectively rollingly matched with the two slideways 411. The cooperation between the slideway 411 and the pulley 43 improves the accuracy and stability of the movement of the clamping end frame 42 along the first direction. The slideway 411 is formed by the structure of the carrier 41 itself, and has a simple structure and low cost. In this embodiment, the clamping end frame 42 includes two first support members 421 and two second support members 422. The two first support members 421 extend along the first direction and are arranged opposite to each other along the second direction. The two second support members 422 extend along the second direction and are arranged opposite to each other along the first direction, that is, the clamping end frame 42 is constructed as a quadrilateral structure. The first support member 421 and the second support member 422 can both be channel steel structures, which have good structural strength and are lighter in weight than solid rods. The pulley 43 is connected to the corresponding first support member 421 through a fastening assembly, and the clamping portion 44 is connected to the second support member 422.

[0057] Optionally, the first drive assembly 45 can be a structure such as a cylinder or an oil cylinder that can directly output linear motion. In other embodiments, the first drive assembly 45 can also be a motor with a screw nut, and the screw nut structure converts the rotational motion output by the motor into linear motion.

[0058] like Figure 2As shown, at least two clamping parts 44 are provided on each clamping end frame 42, and at least two clamping parts 44 are spaced apart along the second direction. That is to say, for the entire clamping mechanism 40, at each end along the first direction, there are at least two clamping members 48 that jointly support the base, thereby improving the reliability of clamping the base, and when the first drive assembly 45 or the second drive assembly 46 fails to release pressure, the base can be supported more stably to prevent the base from falling, thereby further improving safety. In this embodiment, two clamping parts 44 are provided on each clamping end frame 42. In other embodiments, three or more clamping parts 44 can also be provided on each clamping end frame 42. The selection can be made based on various factors such as the size of the workpiece along the second direction and the total weight, and no specific limitation is made here.

[0059] like Figure 3 As shown, the clamping member 48 includes a connecting portion 481 and a supporting portion 482, wherein the connecting portion 481 is used to connect to the transmission assembly 47, and the supporting portion 482 is arranged parallel to the carrier 41, that is, the supporting portion 482 has a supporting surface located in the horizontal direction, so as to ensure that the supporting portion 482 can stably support the bottom surface of the base when the clamping mechanism 40 clamps the base. In this embodiment, the connecting portion 481 extends in the vertical direction, and the supporting portion 482 is arranged in the horizontal direction. Optionally, the connecting portion 481 and the supporting portion 482 can be integrally formed or formed by two parts fixedly connected together.

[0060] In this embodiment, an anti-skid pad 412 is installed on the supporting portion 482, and the anti-skid pad 412 is provided to ensure that the clamping member 48 clamps the base more reliably. Specifically, the anti-skid pad 412 can be a rubber pad. In other embodiments, a mesh pattern, serrations, etc. can be directly processed on the supporting portion 482 to form an anti-skid structure to increase the reliability of clamping the base.

[0061] like Figure 3 As shown, the second drive assembly 46 can output linear motion, and the second drive assembly 46 can rotate relative to the clamping end frame 42. The transmission assembly 47 includes a first vertical beam 471, a first connecting rod 472 and a second connecting rod 476, wherein the first vertical beam 471 is fixedly connected to the clamping end frame 42, one end of the first connecting rod 472 is pivoted to the output end of the second drive assembly 46 through a first pivot shaft 473, the middle part of the first connecting rod 472 is pivoted to the first vertical beam 471 through a second pivot shaft 474, and the other end of the first connecting rod 472 is pivoted to the clamping member 48 through a third pivot shaft 475. One end of the second connecting rod 476 is pivoted to the first vertical beam 471 through a fourth pivot shaft 477, and the other end of the second connecting rod 476 is pivoted to the clamping member 48 through a fifth pivot shaft 478. The connecting line of the second pivot shaft 474 and the fourth pivot shaft 477, and the connecting line of the third pivot shaft 475 and the fifth pivot shaft 478 are parallel to the vertical direction.

[0062] In this embodiment, the first vertical beam 471, the first connecting rod 472, the second connecting rod 476 and the clamping member 48 form a parallelogram four-bar structure, that is, the clamping action in the first direction and the vertical direction can be achieved through one driving source, and because the connection line between the third pivot axis 475 and the fifth pivot axis 478 is along the vertical direction, when the second driving component 46 actively drives the four-bar structure to move, and when the second driving component 46 fails due to accidental pressure relief, the clamping member 48 only moves and does not rotate, and the posture of the clamping member 48 itself remains unchanged, thereby ensuring that the clamping member 48 always reliably supports the base to prevent the base from falling.

[0063] In this embodiment, the second drive assembly 46 can be a cylinder or an oil cylinder. It should be noted that the multiple second drive assemblies 46 of the clamping mechanism 40 can be controlled by a control element to ensure the synchronization of the actions. The first vertical beam 471 extends in the vertical direction and is fixed to the second support member 422 of the clamping end frame 42 by a fastener. The first vertical beam 471 is parallel to and oppositely arranged with the connecting portion 481. The first connecting rod 472 is connected to the connecting portion 481 by a third pivot shaft 475, and the second connecting rod 476 is connected to the connecting portion 481 by a fifth pivot shaft 478. In this embodiment, the first connecting rod 472 is located below the second connecting rod 476. In other embodiments, the first connecting rod 472 can also be located above the second connecting rod 476, which is not limited here.

[0064] Preferably, the distance between the first pivot axis 473 and the second pivot axis 474 is greater than the distance from the second pivot axis 474 to the third pivot axis 475. Since the output end of the second driving assembly 46 and the clamping member 48 are both located at both ends of the second pivot axis 474, a lever structure is formed. By setting the force arm at one end of the second driving assembly 46 to be greater than the force arm at one end of the clamping member 48, it is possible to drive the clamping member 48 to reliably clamp the base with a smaller driving force, thereby reducing the manufacturing and use costs of the clamping mechanism 40.

[0065] like Figure 3 As shown, the clamping portion 44 also includes a second vertical beam 49 and a cross beam 410. The second vertical beam 49 and the first vertical beam 471 are arranged in parallel and connected to the clamping end frame 42. The cross beam 410 is connected to the top of the first vertical beam 471 and the second vertical beam 49. The second drive assembly 46 is pivotally connected to the cross beam 410. In this embodiment, a rigid body is formed between the clamping end frame 42, the first vertical beam 471, the second vertical beam 49 and the cross beam 410, so that reliable support can be provided for the second drive assembly 46. The first vertical beam 471 is both a supporting structure and an important part of the transmission assembly 47, so that the entire clamping portion 44 has a simple, compact and strong structure. Specifically, the first vertical beam 471 and the second vertical beam 49 are respectively connected to the two second support members 422 of the clamping end frame 42 through fasteners.

[0066] Preferably, the position of the clamping portion 44 along the second direction on the clamping end frame 42 is adjustable, so that the clamping portion 44 can be installed at a matching position according to the specific conditions of the workpiece, thereby improving the application range of the clamping mechanism 40. In this embodiment, for each clamping portion 44, a plurality of mounting positions are provided on the clamping end frame 42 along the second direction, and the clamping portion 44 can be selectively installed at any clamping position. Specifically, the clamping end frame 42 is provided with a plurality of groups of mounting hole groups along the second direction, each group of mounting hole groups forms a mounting position, and each group of mounting holes 4221 can be used to fix the clamping portion 44. Each group of mounting hole groups includes mounting holes 4221 relatively arranged on two second support members 422, and the mounting holes 4221 on the two second support members 422 are respectively used to fix the first vertical beam 471 and the second vertical beam 49 of the clamping portion 44.

[0067] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the field, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scopes, and the content of this specification should not be understood as limiting the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A clamping mechanism, characterized in that: include: A carrier frame (41); Two clamping end frames (42) are arranged at intervals along the first direction and are movably connected to the supporting frame (41) respectively; Two first driving assemblies (45) are arranged on the carrier frame (41) and can respectively drive the two clamping end frames (42) to move closer to or farther from each other along the first direction; A clamping portion (44), wherein the two clamping end frames (42) are respectively provided with symmetrically arranged clamping portions (44), wherein the clamping portion (44) comprises a second driving assembly (46), a transmission assembly (47) and a clamping member (48), wherein the clamping member (48) is connected to an output end of the second driving assembly (46) via the transmission assembly (47), and the clamping member (48) is supported on the bottom of the workpiece, and the second driving assembly (46) can drive the clamping member (48) to synchronously approach the other clamping portion (44) along a first direction and approach the supporting frame (41) along a vertical direction.

2. The clamping mechanism according to claim 1, characterized in that: The second drive assembly (46) is capable of outputting linear motion, and the second drive assembly (46) is capable of rotating relative to the clamping end frame (42); The transmission assembly (47) comprises: A first vertical beam (471) is fixedly connected to the clamping end frame (42); A first connecting rod (472), one end of which is pivotally connected to the output end of the second driving assembly (46) via a first pivot shaft (473), a middle portion of which is pivotally connected to the first vertical beam (471) via a second pivot shaft (474), and the other end of which is pivotally connected to the clamping member (48) via a third pivot shaft (475); A second connecting rod (476), one end of which is pivotally connected to the first vertical beam (471) via a fourth pivot axis (477), and the other end of which is pivotally connected to the clamping member (48) via a fifth pivot axis (478); The connecting line between the second pivot axis (474) and the fourth pivot axis (477), and the connecting line between the third pivot axis (475) and the fifth pivot axis (478) are both parallel to the vertical direction.

3. The clamping mechanism according to claim 2, characterized in that: The distance between the first pivot axis (473) and the second pivot axis (474) is greater than the distance from the second pivot axis (474) to the third pivot axis (475).

4. The clamping mechanism according to claim 2, characterized in that: The clamping portion (44) further comprises a second vertical beam (49) and a cross beam (410), wherein the second vertical beam (49) and the first vertical beam (471) are arranged in parallel and connected to the clamping end frame (42), the cross beam (410) is connected to the top of the first vertical beam (471) and the second vertical beam (49), and the second driving assembly (46) is pivotally connected to the cross beam (410).

5. The clamping mechanism according to claim 2, characterized in that: The clamping member (48) comprises a connecting portion (481) and a supporting portion (482), the second connecting rod (476) and the first connecting rod (472) are both pivotally connected to the connecting portion (481), and the supporting portion (482) is arranged parallel to the supporting frame (41).

6. The clamping mechanism according to claim 5, characterized in that: An anti-slip structure is provided on the supporting portion (482); or An anti-slip pad (412) is installed on the supporting portion (482).

7. The clamping mechanism according to any one of claims 1 to 6, characterized in that: The position of the clamping portion (44) along the second direction on the clamping end frame (42) is adjustable.

8. The clamping mechanism according to any one of claims 1 to 6, characterized in that: At least two clamping portions (44) are arranged on each clamping end frame (42), and at least two clamping portions (44) are arranged at intervals along the second direction.

9. The clamping mechanism according to any one of claims 1 to 6, characterized in that: The support frame (41) is provided with two slideways (411) extending along the first direction; The two ends of the clamping end frame (42) along the second direction are respectively connected to pulleys (43), and the pulleys (43) located at the two ends are respectively in rolling cooperation with the two slideways (411).

10. A lifting and turning device, characterized in that: include: Two support mechanisms (10) are arranged at intervals along a first direction; Each of the support mechanisms (10) is provided with a lifting drive mechanism (20), an output end of the lifting drive mechanism (20) is connected to a flipping drive mechanism (30), and the lifting drive mechanism (20) can drive the corresponding flipping drive mechanism (30) to move up and down in a vertical direction; The lifting and flipping device also includes the clamping mechanism described in any one of claims 1 to 9, and the output ends of the two flipping drive mechanisms (30) are connected to the supporting frame (41) and can drive the supporting frame (41) to rotate around a flipping axis parallel to the first direction.

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