Clamping jaw mechanism with safety assembly

Abstract

Moving frames are arranged at the two ends of the lower surface of a transverse frame in a sliding mode, clamping jaw assemblies are arranged on the outer sides of the moving frames in a sliding mode through vertical plates, electric cylinders are connected with a lifting plate through connecting pieces and arranged on the outer side surfaces of the moving frames, and sawteeth are arranged on the two side edges of the lifting plate. The two rotating rods are rotationally connected with the movable frame, the rotating rods are meshed with sawteeth on the side edge of the lifting plate through gears, and the ends, away from the gears, of the rotating rods penetrate through the movable frame and are provided with limiting plates. And the workpiece clamping stability is greatly improved, the situation of loosening and transverse moving is avoided, the workpiece is prevented from falling, and the safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping jaws, in particular to a clamping jaw mechanism with a safety component. Background Art

[0002] Gripper is widely used in industrial robots. It is a mechanical clamping structure, which is generally designed and manufactured according to the needs. The gripper of the robot arm is also called the end effector. It is installed on the robot arm and has the function of clamping, transporting, and placing objects to a certain position.

[0003] The current clamping mechanism generally clamps the workpiece by cooperating with two sets of clamping jaws. However, when used for clamping large workpieces, the two ends are clamped by only two sets of clamping jaws. When moving, the workpiece is prone to vibration, shaking, and even lateral displacement, which poses certain safety hazards. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping mechanism with a safety component, an electric cylinder is arranged on the outer side of the moving frame, the electric cylinder is connected to the lifting plate through a connecting piece, the two sides of the lifting plate are connected with the gears of the rotating rod through saw teeth, a limit plate is arranged at one end of the rotating rod away from the gear, the limit plate is driven to rotate by the rotatable rotating rod, so that after the left clamping jaw and the right clamping jaw clamp the workpiece, the protruding position of the workpiece can be resisted by the rotation of the limit plate, so that the stability of the workpiece clamping is greatly improved, loosening and lateral movement will not occur, the workpiece is prevented from falling, and the safety is greatly improved, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping mechanism with a safety assembly, comprising a frame, a clamping assembly and a safety assembly;

[0006] The frame includes a horizontal frame and a mobile frame, the two ends of the lower surface of the horizontal frame are provided with first linear guide rails, the mobile frame has two first sliders respectively slidingly cooperate with the first linear guide rails at the two ends of the horizontal frame, the outer side of the mobile frame is provided with a vertical plate through a connecting column, and the outer ends of the vertical plate are provided with two second linear guide rails;

[0007] The clamping jaw assembly has two jaws and is respectively matched with the second linear guide rails at both ends. The clamping jaw assembly includes a left jaw and a right jaw. The left jaw and the right jaw are respectively slidably matched with the second linear guide rail through a second slider.

[0008] The insurance component includes an electric cylinder, a rotating rod, a lifting plate and a limit plate. The electric cylinder is connected to the lifting plate through a connecting piece. The electric cylinder is arranged on the outer surface of the mobile frame. Saw teeth are arranged on both sides of the lifting plate. There are two rotating rods and they are rotatably connected to the mobile frame. The two rotating rods are symmetrically arranged on both sides of the lifting plate. Gears are arranged at one end of the rotating rods, and the gears are meshed with the serrations on the side of the lifting plate. The end of the rotating rod away from the gear passes through the mobile frame and is installed with a limit plate.

[0009] Preferably, the utility model provides a clamping claw mechanism with a safety assembly, wherein the movable frame is provided with bearings on both sides of the lifting plate, and the rotating rod cooperates with the bearings.

[0010] Preferably, the utility model provides a clamping claw mechanism with a safety assembly, wherein the upper surface of the cross frame is also provided with a connecting pin, a lifting ear and a guide rod.

[0011] Preferably, the utility model provides a clamping jaw mechanism with a safety assembly, wherein a clamping slot is provided on one side of the left clamping jaw and the right clamping jaw close to each other.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] An electric cylinder is arranged on the outside of the mobile frame, and the electric cylinder is connected to the lifting plate through a connecting piece. The two sides of the lifting plate are connected with the gears of the rotating rod through saw teeth. A limit plate is arranged on the end of the rotating rod away from the gear. The limit plate is driven to rotate by the rotatable rotating rod. After the left clamping jaw and the right clamping jaw clamp the workpiece, the protruding position of the workpiece can be resisted by the rotation of the limit plate, so that the stability of the workpiece clamping is greatly improved, loosening and lateral movement will not occur, the workpiece is prevented from falling, and the safety is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 For attachment Figure 1 The enlarged structural diagram at the mark A in the middle;

[0016] Figure 3 For attachment Figure 1 Schematic diagram of the angle transformation structure;

[0017] Figure 4 It is a schematic diagram of the structure of the insurance component;

[0018] Figure 5 It is a schematic diagram of the working state of the utility model.

[0019] In the figure: horizontal frame 1, mobile frame 2, first linear guide 3, first slide block 4, vertical plate 5, second linear guide 6, connecting column 7, left clamping jaw 8, right clamping jaw 9, second slide block 10, electric cylinder 11, rotating rod 12, lifting plate 13, limit plate 14, gear 15, bearing 16, connecting pin 17, lifting ear 18, guide rod 19. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model;

[0021] It should be noted that, in the description of the present invention, the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] See also Figure 1-5 , the utility model provides a technical solution: a clamping mechanism with a safety component, comprising a frame, a clamping component and a safety component;

[0023] The frame includes a horizontal frame 1 and a mobile frame 2. The two ends of the lower surface of the horizontal frame 1 are provided with first linear guide rails 3. The mobile frame 2 has two first sliders 4 and slides with the first linear guide rails 3 at both ends of the horizontal frame 1. The outer side of the mobile frame 2 is provided with a vertical plate 5 through a connecting column 7. The outer ends of the vertical plate 5 are provided with two second linear guide rails 6. The upper surface of the horizontal frame 1 is also provided with a connecting pin 17, a lifting ear 18 and a guide rod 19. The connecting pin 17 is used to connect with the hanger, the lifting ear 18 is used to realize the lifting of the horizontal frame 1, and the guide rod 19 is used to ensure the stability of the clamping mechanism.

[0024] There are two clamping jaw assemblies, which are respectively matched with the second linear guide rails 6 at both ends. The clamping jaw assembly includes a left clamping jaw 8 and a right clamping jaw 9. The left clamping jaw 8 and the right clamping jaw 9 are respectively matched with the second linear guide rail 6 through a second slider 10. The left clamping jaw 8 and the right clamping jaw 9 are provided with a clamping slot on one side close to each other, and the left clamping jaw 8 and the right clamping jaw 9 can clamp the workpiece through the clamping slot.

[0025] The insurance component includes an electric cylinder 11, a rotating rod 12, a lifting plate 13 and a limit plate 14. The electric cylinder 11 is connected to the lifting plate 13 through a connecting piece. The electric cylinder 11 is arranged on the outer surface of the mobile frame 2. Saw teeth are arranged on both sides of the lifting plate 13. There are two rotating rods 12 and they are rotatably connected to the mobile frame 2. The two rotating rods 12 are symmetrically arranged on both sides of the lifting plate 13. The mobile frame 2 is located on both sides of the lifting plate 13 and bearings 16 are arranged. The rotating rod 12 cooperates with the bearings 16. The bearings 16 are arranged to ensure the smoothness of the rotation of the rotating rod 12. A gear 15 is arranged at one end of the rotating rod 12. The gear 15 is meshed with the serrations on the side of the lifting plate 13. The end of the rotating rod 12 away from the gear 15 passes through the mobile frame 2 and is installed with a limit plate 14.

[0026] Installation method and use principle: Install the electric cylinder 11 in the middle position of the outer surface of the mobile frame 2, then match the two rotating rods 12 with the limit plates 14 with the bearings 16 of the mobile frame 2, and install the gear 15 on the outer end of the rotating rod 12, then connect the lifting plate 13 with the connecting piece of the electric cylinder 11, and make the saw teeth on both sides of the lifting plate 13 mesh with the gear 15. At this time, the height of the lifting plate 13 is adjusted by the electric cylinder 11, so that the gear 15 is driven to rotate through the lifting plate 13, and then the limit plate 14 is driven to rotate through the rotating rod 12. Connect the left clamp 8 and the right clamp 9 to the second linear guide 6 through the second slider 10 respectively, and finally connect the mobile frame 2 to the first linear guide 3 on the lower surface of the horizontal frame 1 through the first slider 4 to complete the installation. When in use, the moving frame 2 moves laterally through the cooperation of the first slider 4 and the first linear guide 3, and the left clamping jaw 8 and the right clamping jaw 9 move laterally through the cooperation of the second slider 10 and the second linear guide 6. The first slider 4 and the first linear guide 3 and the second slider 10 and the second linear guide 6 can be driven by a screw or a cylinder, or directly by a pneumatic slide. The lifting plate 13 is driven up and down by the electric cylinder 11, and the rotating rod 12 is driven to rotate by the gear 15, so that the limit plate 14 is staggered from the corresponding protruding position of the workpiece, and then the workpiece is clamped by the left clamping jaw 8 and the right clamping jaw 9, and then the limit plate 14 is driven by the electric cylinder 11 again to rotate and resist the protruding position of the workpiece, so as to prevent the workpiece from loosening during movement. When unloading, first reverse the limit plate 14, and then release the left clamping jaw 8 and the right clamping jaw 9. The utility model has a reasonable structure. An electric cylinder 11 is arranged on the outer side of the mobile frame 2. The electric cylinder 11 is connected to the lifting plate 13 through a connecting piece. The two sides of the lifting plate 13 are connected with the gear 15 of the rotating rod 12 through saw teeth. A limit plate 14 is arranged at one end of the rotating rod 12 away from the gear 15. The limit plate 14 is driven to rotate by the rotatable rotating rod 12. Therefore, after the left clamping jaw 8 and the right clamping jaw 9 clamp the workpiece, the protruding position of the workpiece can be resisted by the rotation of the limit plate 14, so that the stability of the workpiece clamping is greatly improved, and loosening and lateral movement will not occur, so the workpiece can be prevented from falling, and the safety is greatly improved.

[0027] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0028] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A clamping mechanism with a safety assembly, characterized in that: It includes a frame, a clamping jaw assembly and a safety assembly; The frame comprises a horizontal frame (1) and a mobile frame (2), the two ends of the lower surface of the horizontal frame (1) are provided with first linear guide rails (3), the mobile frame (2) has two first sliders (4) respectively slidingly matched with the first linear guide rails (3) at the two ends of the horizontal frame (1), the outer side of the mobile frame (2) is provided with a vertical plate (5) through a connecting column (7), and the outer ends of the vertical plate (5) are provided with two second linear guide rails (6); The clamping jaw assembly has two and respectively cooperates with the second linear guide rails (6) at both ends, and the clamping jaw assembly includes a left clamping jaw (8) and a right clamping jaw (9), and the left clamping jaw (8) and the right clamping jaw (9) respectively cooperate with the second linear guide rail (6) in a sliding manner through a second slider (10); The insurance component comprises an electric cylinder (11), a rotating rod (12), a lifting plate (13) and a limit plate (14); the electric cylinder (11) is connected to the lifting plate (13) via a connecting piece; the electric cylinder (11) is arranged on the outer surface of the moving frame (2); saw teeth are arranged on both sides of the lifting plate (13); there are two rotating rods (12) and they are rotatably connected to the moving frame (2); the two rotating rods (12) are symmetrically arranged on both sides of the lifting plate (13); one end of each rotating rod (12) is provided with a gear (15); the gear (15) is meshed with the saw teeth on the side of the lifting plate (13); the end of the rotating rod (12) away from the gear (15) passes through the moving frame (2) and is installed with a limit plate (14).

2. A clamping mechanism with a safety assembly according to claim 1, characterized in that: The movable frame (2) is provided with bearings (16) on both sides of the lifting plate (13), and the rotating rod (12) cooperates with the bearings (16).

3. A clamping mechanism with a safety assembly according to claim 1, characterized in that: The upper surface of the cross frame (1) is also provided with a connecting pin (17), a lifting lug (18) and a guide rod (19).

4. A clamping mechanism with a safety assembly according to claim 1, characterized in that: The left clamping jaw (8) and the right clamping jaw (9) are both provided with clamping slots on one side close to each other.

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