Mechanical claw

Abstract

The utility model belongs to the field of mechanical claws, and particularly relates to a mechanical claw and a mechanical arm thereof. The utility model provides a mechanical claw. The mechanical claw comprises a base plate, a lug plate, a transverse shaft, first claw fingers and an air cylinder. The four lug plates are arranged, every two lug plates form a group, and the two groups of lug plates are vertically fixed to the two ends of the base plate correspondingly and are perpendicular to the base plate. The transverse shaft is arranged between the two lug plates in the same group; the first claw fingers are in an L shape, the vertical sections of the first claw fingers are hinged to the outer sides of the lug plates, the horizontal sections of the first claw fingers point to the middle of the base plate, and rolling wheels are arranged at the ends of the horizontal sections of the first claw fingers. The air cylinder is arranged between the two lug plates in one set, the output end of the air cylinder is hinged to the transverse shaft, and the side wall of the air cylinder is hinged to the vertical section of the first claw finger. According to the mechanical claw, on one hand, the air cylinder is hidden in the claw fingers to the maximum extent, and the overall size is reduced; and on the other hand, the adopted claw finger structure can reduce the contact area with the clamped materials, and the materials are prevented from being damaged by clamping. The embodiment of the utility model is particularly suitable for stacked sheet materials.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of mechanical claw, concretely relates to a mechanical claw and mechanical arm thereof. BACKGROUND

[0002] Mechanical claw and mechanical arm are widely used in production and manufacturing at present, in some specific production processes, it is required that the space occupied by the mechanical claw is small and the cost is low, meanwhile, it is also required that the clamped material is not allowed to have scratch, so the claw is required to contact the material as little as possible. At present, there is no mechanical claw that can meet these requirements at the same time. SUMMARY

[0003] The utility model provides a kind of mechanical claw and mechanical arm thereof, can effectively solve the problems in background art.

[0004] The utility model provides a kind of mechanical claw, including base plate, ear plate, cross shaft, first claw finger and cylinder;

[0005] Ear plate is equipped with four and two groups, and two groups of ear plates are respectively fixed at the both ends of base plate and perpendicular to base plate;Cross shaft is arranged between two ear plates of same group;First claw finger is L-shaped, and the vertical section of first claw finger is hinged to the outside of ear plate, and the horizontal section of first claw finger points to the middle part of base plate, and the end of the horizontal section of first claw finger is equipped with gyro wheel;Cylinder is arranged between two ear plates of a group, and the output end of cylinder is hinged with cross shaft, and the side wall of cylinder is hinged with the vertical section of first claw finger.

[0006] As further optimization of the utility model, base plate is equipped with waist round hole;One group of ear plates is replaced by a U-shaped plate, and the U-shaped plate is fixed on base plate by bolt passing through the horizontal section of U-shaped plate and waist round hole and can adjust the distance between two U-shaped plates through waist round hole.

[0007] As further optimization of the utility model, it further includes fixed seat;Two side walls of fixed seat are respectively hinged with two first claw fingers on the same side of base plate, and cylinder is fixed on fixed seat.

[0008] As further optimization of the utility model, it further includes second claw finger;Second claw finger is L-shaped, and second claw finger is parallel with first claw finger and is arranged outside first claw finger, and the vertical section side wall of second claw finger is connected with the vertical section side wall of first claw finger through connecting shaft, and the horizontal section of second claw finger and the horizontal section of first clamp claw connected with it are the same in direction and are also equipped with gyro wheel at end.

[0009] As further optimization of the utility model, the side wall of first claw finger is equipped with a plurality of mounting holes;Second clamp claw can adjust installation height through mounting hole.

[0010] As further optimization of the utility model, the first claw finger and the second claw finger are connected through two connecting shafts; two first claw fingers hinged with a group of ear plates are connected through a connecting shaft.

[0011] As further optimization of the utility model, the rollers are arranged on both sides of the horizontal section of the first claw finger and the height of the rollers is higher than the horizontal plane of the horizontal section of the first claw finger.

[0012] The mechanical claw provided by the utility model can hide the air cylinder in the claw finger to the maximum extent, reduces the overall volume, and adopts the claw finger structure to reduce the contact area with the clamped material and avoid clamping the material. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of an embodiment;

[0014] Figure 2 is Figure 1 another perspective view;

[0015] Figure 3 is Figure 1 a structural schematic diagram of a U-shaped plate in the embodiment;

[0016] Figure 4 is Figure 1 a structural schematic diagram of a fixing seat in the embodiment;

[0017] In the embodiment, the base plate 1, the connecting shaft 2, the horizontal shaft 3, the first claw finger 4, the air cylinder 5, the U-shaped plate 6, the fixing seat 7, the roller 8 and the second claw finger 9 are provided. DETAILED DESCRIPTION

[0018] As Figures 1-4 shown, the embodiment includes the base plate 1, the ear plate, the horizontal shaft 3, the first claw finger 4 and the air cylinder 5.

[0019] The middle part of the base plate 1 is provided with a mounting hole for being connected with a mechanical arm. The ear plate in the embodiment adopts an inverted U-shaped plate 6. Two U-shaped plates 6 are fixed at both ends of the base plate 1. In order to facilitate installation and adjustment of the distance between the two U-shaped plates 6, the base plate 1 is provided with a waist round hole, and a bolt passes through the horizontal section of the U-shaped plate 6 and the waist round hole to fix the U-shaped plate 6 and the base plate 1. In other embodiments, the U-shaped plate 6 can not be provided, but four ear plates are directly used, two ear plates form a group, and the two groups of ear plates are vertically fixed at both ends of the base plate 1.

[0020] In the embodiment, the horizontal shaft 3 is arranged between the two vertical sections of the U-shaped plate 6. The output end of the air cylinder 5 is hinged to the middle part of the horizontal shaft 3.

[0021] Each U-shaped plate 6 is provided with two first claw fingers 4, which are L-shaped, and the vertical segments of the two first claw fingers 4 are respectively hinged to the outer sides of the two vertical segments of the U-shaped plate 6. The horizontal segment of the first claw finger 4 points to the middle of the base plate 1 and is provided with a roller 8 at the end. Specifically, the roller 8 is arranged on both sides of the horizontal segment of the first claw finger 4, and the height of the roller 8 is higher than the horizontal plane of the horizontal segment of the first claw finger 4. When the first claw finger 4 picks up the material, the roller 8 is in contact with the bottom surface of the material, which not only reduces the contact area with the material, but also effectively reduces the friction by rolling the roller 8 on the bottom surface of the material, thereby avoiding scratching the material during clamping.

[0022] The cylinder 5 is arranged between the two vertical segments of the U-shaped plate 6, and the side wall of the cylinder 5 is hinged to the vertical segment of the first claw finger 4. This structure ingeniously integrates the cylinder 5 between the two vertical segments of the U-shaped plate 6, fully utilizes the space of the U-shaped plate 6, and makes the overall structure more compact. Specifically, the embodiment also provides a fixing seat 7, the two side walls of the fixing seat 7 are respectively hinged to the two first claw fingers 4 on the same side of the base plate 1, and the cylinder 5 is fixed on the fixing seat 7. This structure facilitates the installation of a general-purpose cylinder. The cylinder 5 is used to drive the two groups of first claw fingers 4 at both ends of the base plate 1 to open and clamp.

[0023] Further, a second claw finger 9 is also included. The second claw finger 9 is L-shaped and is arranged in parallel on the outer side of the first claw finger 4. In this embodiment, the outer side of each of the four first claw fingers 4 is provided with a second claw finger 9. The vertical segment side wall of the second claw finger 9 is connected to the vertical segment side wall of the first claw finger 4 through a connecting shaft 2. In this embodiment, the first claw finger 4 and the second claw finger 9 are connected through two connecting shafts 2. The horizontal segment of the second claw finger 9 points in the same direction as the horizontal segment of the first claw finger 4 connected thereto, and the end of the horizontal segment of the second claw finger 9 is also provided with a roller 8. Similarly, the roller 8 is arranged on both sides of the horizontal segment of the second claw finger 9, and the height of the roller 8 is higher than the horizontal plane of the horizontal segment of the second claw finger 9.

[0024] Further, the side wall of the first claw finger 4 is provided with a plurality of mounting holes in the length direction, and the second claw is adjustably mounted through the mounting holes. This structure can be suitable for clamping some arc-shaped or T-shaped materials.

[0025] Further, the two first claw fingers 4 on the same side of the base plate 1 are connected through a connecting shaft 2, which further improves the stability.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A mechanical gripper, characterized by, The device comprises a base plate, ear plates, a horizontal shaft, first claw fingers and a cylinder. The ear plates are arranged in two groups of four, and the two groups of ear plates are fixed perpendicularly to the two ends of the base plate. The horizontal shaft is arranged between the two ear plates in the same group. The first claw finger is L-shaped, and the vertical section of the first claw finger is hinged to the outside of the ear plate. The horizontal section of the first claw finger points to the middle of the base plate, and the end of the horizontal section of the first claw finger is provided with a roller. The cylinder is arranged between the two ear plates in the same group, and the output end of the cylinder is hinged to the horizontal shaft, and the side wall of the cylinder is hinged to the vertical section of the first claw finger.

2. A mechanical gripper according to claim 1, wherein, The base plate is provided with a waist hole. One of the ear plates is replaced by a U-shaped plate, and the U-shaped plate is fixed to the base plate by a bolt passing through the horizontal section of the U-shaped plate and the waist hole, and the distance between the two U-shaped plates can be adjusted through the waist hole.

3. A mechanical gripper according to claim 1, wherein, The device further comprises a fixing seat. The two side walls of the fixing seat are respectively hinged to the two first claw fingers on the same side of the base plate, and the cylinder is fixed to the fixing seat.

4. The mechanical gripper of claim 1, wherein, The device further comprises a second claw finger. The second claw finger is L-shaped, and is parallel to the first claw finger and arranged outside the first claw finger. The vertical section side wall of the second claw finger is connected to the vertical section side wall of the first claw finger through a connecting shaft. The horizontal section of the second claw finger and the horizontal section of the first claw jaw connected thereto are directed to the same direction, and the ends thereof are also provided with rollers.

5. A mechanical gripper according to claim 4, wherein, The side wall of the first claw finger is provided with a plurality of mounting holes. The second claw jaw can adjust the mounting height through the mounting holes.

6. A mechanical gripper according to claim 4, wherein, The first claw finger and the second claw finger are connected through two connecting shafts. The two first claw fingers hinged to the ear plates in the same group are connected through a connecting shaft.

7. The mechanical gripper of claim 1, wherein, The rollers are arranged on both sides of the horizontal section of the first claw finger, and the height of the rollers is higher than the horizontal plane of the horizontal section of the first claw finger.

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