Pneumatic lifting type gravity positioning frame

Abstract

The utility model discloses a pneumatic lifting type gravity positioning frame which comprises a gravity positioning frame support, a welding frame installed on the gravity positioning frame support and a gravity frame face arranged above the welding frame, wherein the inclination angle of the gravity frame face can be correspondingly adjusted. One side end of the welding frame and the gravity frame face are correspondingly installed through an air cylinder seat and a lifting air cylinder, the other side end of the welding frame and the gravity frame face are correspondingly installed through a welding frame rotating shaft support and a chassis rotating shaft support, and angle adjustment of the gravity frame face is achieved through the lifting air cylinder. A positioning frame long flange and a positioning frame short flange are further mounted on two adjacent side surfaces of the gravity frame surface; the flanges on the two sides are located on the two sides of the lowest point of the gravity frame face. According to the technical scheme, the lifting air cylinder is designed, the inclination angle of the gravity frame face can be correspondingly adjusted through the lifting air cylinder, feeding and positioning of workpieces are accurate, the installation and debugging difficulty is greatly reduced, the fault rate of a mechanical arm is correspondingly reduced, and the working efficiency and the grabbing quality are improved.

Description

Technical Field

[0001] The utility model relates to a feeding device used in conjunction with a bending center, specifically an air-powered lifting gravity positioning frame. Background Art

[0002] The gravity positioning frame in the prior art is one of the components in the feeding and discharging scheme of the automatic manipulator used in conjunction with the bending center. The main body is composed of a rectangular gravity positioning frame surface fixed on an inclined welding frame by screws. The welding frame is a structure inclined towards the lowest point of a rectangular corner. Positioning baffles are correspondingly installed on both sides of the lowest point for positioning workpieces.

[0003] As Figure 4 shown, during the specific operation, during the grasping process of the automatic manipulator used in conjunction with the bending center, position coordinate positioning is required. Therefore, the workpiece needs to be grasped onto the gravity positioning frame. After the workpiece is placed on the gravity positioning frame, due to the existence of the lowest point, the workpiece will slide to the lowest point position due to gravity and be blocked by the positioning baffles on both sides. At the same time, after the position of the gravity positioning frame is fixed, this position is the positioning position for each feeding. The manipulator identifies this position for grasping the workpiece each time it feeds.

[0004] The welding frame of the gravity positioning frame in the prior art is usually welded into a fixed shape by square tubes, so the inclination angle is not adjustable. For a manipulator with a high degree of freedom, the fixed inclination angle does not pose a difficulty for the manipulator to grasp materials, and only the program needs to be slightly adjusted.

[0005] However, for a truss feeding and discharging manipulator with a low degree of freedom, such as a suction cup type feeding and discharging mechanism, when grasping materials, if it is to be adapted to a gravity positioning frame with a fixed inclination angle, an inclination device needs to be added, and the inclination angle of the suction cup must be adjusted until it is parallel to the plane of the gravity positioning frame before grasping materials. Otherwise, some suction cups will be suspended, resulting in grasping failure.

[0006] If manual feeding is used, the manual speed is slow and there is a certain risk of error, the cost of industrial robots is too high, and for the truss gravity positioning frame, the truss can only move straight up and down during feeding and discharging, and it is inconvenient to position when cooperating with other automatic devices.

[0007] Therefore, in order to solve the above problems, it is necessary to develop an air-powered lifting gravity positioning frame with a reasonable structure and convenient grasping in conjunction with the feeding mechanism. Summary of the Utility Model

[0008] The purpose of the utility model is to provide an air-powered lifting gravity positioning frame aiming at the deficiencies existing in the prior art; its technical solution is as follows:

[0009] A pneumatic lifting gravity positioning frame, comprising a gravity positioning frame support, a welding frame mounted on the gravity positioning frame support, and a gravity frame surface disposed above the welding frame and capable of correspondingly adjusting the inclination angle;

[0010] One side end of the welding frame and the gravity frame surface are correspondingly installed through a cylinder seat and a lifting cylinder, and the other side end is correspondingly installed with the gravity frame surface through a welding frame rotating shaft support and a chassis rotating shaft support, and the angle of the gravity frame surface is adjusted through the lifting cylinder;

[0011] On two adjacent sides of the gravity frame surface, a long positioning frame edge and a short positioning frame edge are further installed; and the edges on both sides are located at both sides of the lowest point of the gravity frame surface. When placing the workpiece, the workpiece is blocked by the positioning edges on both sides.

[0012] Further, a cylinder joint is further provided at the upper end of the lifting cylinder.

[0013] Further, a stainless steel skin is provided on the gravity frame surface; the short positioning frame edge and the long positioning frame edge are fixedly locked with the stainless steel skin through screws.

[0014] Further, stainless steel universal balls are further installed on the gravity frame surface, and the stainless steel skin is provided with mounting holes corresponding to the stainless steel universal balls at corresponding positions, and the stainless steel universal balls pass through the mounting holes and are connected to the gravity frame surface through screws.

[0015] Further, the left end of the welding frame is higher than the right end. The left end of the welding frame is correspondingly installed with a lifting cylinder, and the right side is correspondingly installed with a welding frame rotating shaft support, so that the inclination angle can be correspondingly adjusted.

[0016] Beneficial effects: The present utility model has the following beneficial effects:

[0017] 1) In the technical solution of the present device, a lifting cylinder is designed. Through the lifting cylinder, the inclination angle of the gravity frame surface can be correspondingly adjusted, the feeding positioning of the workpiece is accurate, the installation and debugging difficulty is greatly reduced, the failure rate of the manipulator is correspondingly reduced, and the working efficiency and grasping quality are increased;

[0018] 2) When the present device is specifically used, first place the gravity frame surface horizontally, then place the workpiece, tilt it to the lowest point, and then place the gravity frame surface horizontally again. After such setting, it can be applicable to manipulators and feeding mechanisms with different degrees of freedom, and the structure is reasonable;

[0019] 3) Stainless steel universal balls are also provided in the present device. When the gravity frame surface is tilted, the sliding is smooth, the workpiece will not be damaged, and when it is horizontal, the positioning deviation will not be caused. Description of the Drawings

[0020] Figure 1 This is the structural diagram of the present utility model;

[0021] Figure 2 This is the top view of the present utility model;

[0022] Figure 3 This is the structural diagram of the lifting cylinder in the present utility model;

[0023] Figure 4 This is the working diagram of the present utility model cooperating with the bending equipment. Specific embodiments

[0024] The following further clarifies the present utility model in conjunction with the accompanying drawings and specific embodiments. These embodiments are implemented on the premise of the technical solution of the present utility model. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model.

[0025] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, a pneumatic lifting gravity positioning frame includes a gravity positioning frame bracket 1, a welding frame 101 installed on the gravity positioning frame bracket 1, and a gravity frame surface 8 disposed above the welding frame 101 and capable of correspondingly adjusting the inclination angle;

[0026] One side end of the welding frame 101 and the gravity frame surface 8 are correspondingly installed through a cylinder seat 11 and a lifting cylinder 10, and the other side end is correspondingly installed with the gravity frame surface 8 through a welding frame rotating shaft support 5 and a chassis rotating shaft support 6, and the angle of the gravity frame surface 8 is adjusted by the lifting cylinder 10;

[0027] Two adjacent side surfaces on the gravity frame surface 8 are also provided with a positioning frame long edge 3 and a positioning frame short edge 4; and the edges on both sides are located at both sides of the lowest point of the gravity frame surface 8. When placing a workpiece, the workpiece is blocked by the positioning edges on both sides.

[0028] The upper end of the lifting cylinder 10 is also provided with a cylinder joint 9.

[0029] A stainless steel skin 2 is provided on the gravity frame surface 8; the positioning frame short edge 4 and the positioning frame long edge 3 are fixed and locked with the stainless steel skin 2 by screws.

[0030] Stainless steel universal ball bearings 7 are also installed on the gravity frame surface 8, and the stainless steel skin 2 is provided with mounting holes corresponding to the stainless steel universal ball bearings 7 at corresponding positions. The stainless steel universal ball bearings 7 pass through the mounting holes and are connected to the gravity frame surface 8 by screws.

[0031] The left end of the welding frame 101 is higher than the right end. The left end of the welding frame 101 is correspondingly installed with the lifting cylinder 10, and the right side is correspondingly installed with the welding frame rotating shaft support 5, so as to correspondingly adjust the inclination angle.

[0032] The specific operation of this device is as follows:

[0033] When the truss manipulator feeds the material, the gravity positioning frame is in a non-operating state, and the gravity frame surface is parallel to the ground, waiting for the suction cup to horizontally place the sheet metal.

[0034] When the truss manipulator finishes feeding and retracts to the designated position, the system automatically recognizes it. At this time, the lifting cylinder starts to act, lifting the gravity frame surface by a specified angle. At this time, the gravity frame surface forms a certain inclination angle with the horizontal plane. Since the workpiece does not contact the stainless steel skin and contacts the stainless steel universal ball above the stainless steel skin, with low damping, it will automatically slide to the position of the positioning frame edge due to the influence of gravity. After waiting for a period of time, the lifting cylinder retracts, making the gravity frame surface parallel to the horizontal plane again.

[0035] When the gravity positioning frame finishes working, the system receives a signal, and the truss manipulator descends to the same position, picks up the material, and feeds it into the bending center.

[0036] In the technical solution of this device, a lifting cylinder is designed. Through the lifting cylinder, the inclination angle of the gravity frame surface can be correspondingly adjusted, the feeding and positioning of the workpiece are accurate, greatly reducing the installation and debugging difficulty, and correspondingly reducing the failure rate of the manipulator, increasing the working efficiency and grasping quality.

[0037] When this device is specifically used, first place the gravity frame surface horizontally, then place the workpiece, tilt it to the lowest point, and then place the gravity frame surface horizontally again. After such setting, it can be applicable to manipulators and feeding mechanisms with different degrees of freedom, and the structure is reasonable.

[0038] Stainless steel universal balls are also provided in this device. When the gravity frame surface is tilted, the sliding is smooth, the workpiece will not be damaged, and when it is horizontal, there will be no positioning deviation either.

[0039] The above specific implementation manner is only a preferred embodiment of the present utility model, and is not used to limit the implementation and the scope of the claims of the present utility model. All equivalent changes and modifications made according to the content of the scope of patent protection of the present utility model shall be included within the scope of the patent application of the present utility model.

Claims

1. A pneumatic lifting gravity positioning frame, characterized in that: It comprises a gravity positioning frame bracket (1), a welding frame (101) mounted on the gravity positioning frame bracket (1), and a gravity frame surface (8) arranged above the welding frame (101) and capable of adjusting the inclination angle accordingly; One side end of the welding frame (101) is mounted correspondingly to the gravity frame surface (8) via a cylinder seat (11) and a lifting cylinder (10), and the other side end is mounted correspondingly to the gravity frame surface (8) via a welding frame rotating shaft support (5) and a chassis rotating shaft support (6), and the angle of the gravity frame surface (8) is adjusted by the lifting cylinder (10); Two adjacent side surfaces of the gravity frame surface (8) are also provided with a positioning frame long rib (3) and a positioning frame short rib (4); and the ribs on both sides are located at both sides of the lowest point of the gravity frame surface (8); when a workpiece is placed, the workpiece is blocked by the positioning ribs on both sides.

2. The pneumatic lifting gravity positioning frame according to claim 1 is characterized in that: The upper end of the lifting cylinder (10) is also provided with a cylinder joint (9).

3. The pneumatic lifting gravity positioning frame according to claim 1 is characterized in that: A stainless steel skin (2) is provided on the gravity frame surface (8); the positioning frame short rib (4) and the positioning frame long rib (3) are fixed and locked to the stainless steel skin (2) by means of screws.

4. The pneumatic lifting gravity positioning frame according to claim 3 is characterized in that: A stainless steel universal ball (7) is also mounted on the gravity frame surface (8), and a mounting hole corresponding to the stainless steel universal ball (7) is provided at a corresponding position on the stainless steel skin (2), and the stainless steel universal ball (7) is connected to the gravity frame surface (8) through the mounting hole and by screws.

5. The pneumatic lifting gravity positioning frame according to claim 1 is characterized in that: The left end of the welding frame (101) is higher than the right end. The left end of the welding frame (101) is correspondingly installed with a lifting cylinder (10), and the right end is correspondingly installed with a welding frame rotating shaft support (5), so that the tilt angle can be adjusted accordingly.

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