Positioning clamp for drilling machining of mechanical grabbing arm

Abstract

The utility model relates to a positioning fixture for drilling machining of a mechanical grabbing arm, which comprises a bottom plate and mounting plates mounted at two ends of the bottom plate, a positioning column is mounted on the surface of the bottom plate, and a base plate with a square structure is mounted on the surface of the bottom plate; a vertical plate is connected to the surface of the bottom plate, an adjusting rod is connected to the surface of the vertical plate in a penetrating mode, a movable block is movably connected to the surface of the adjusting rod, a clamping plate is connected to one side of the movable block through a connecting plate, and a protection gasket is connected to the bottom face of the clamping plate. The clamping plate is driven to move up and down through the driving device, the distance between the clamping plate and the mechanical grabbing arm can be conveniently adjusted at any time, it is ensured that the mechanical grabbing arm is tightened, the clamping process is optimized, the clamping efficiency is improved, and the time wasted by clamping is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning fixtures, and in particular relates to a positioning fixture for drilling processing of a mechanical grab arm. Background Art

[0002] The grab arm structure of construction machinery is a key component used in the construction industry to grab, carry and place construction materials (such as bricks, steel bars, etc.). The material selection of the grab arm structure of construction machinery needs to consider factors such as load-bearing capacity, corrosion resistance, and processability. Commonly used materials include aluminum alloys (such as 6061 aluminum alloy) and steel. Aluminum alloys have lighter weight and better corrosion resistance, and are suitable for reducing motor loads and improving overall flexibility; while steel has higher strength and load-bearing capacity, and is suitable for scenarios that need to withstand larger loads. The grab arm structure of construction machinery usually uses motors or hydraulics as the drive method. Motor drive has the advantages of simple structure, precise control, and easy maintenance;

[0003] like Figure 7 The mechanical grab arm shown is a large grab arm structure for construction machinery. The blank of the mechanical grab arm is made by a casting process. After the grab arm is cast, it needs to be machined. One of the machining processes is to machine four fixing holes on the grab arm.

[0004] When drilling holes on the surface of a mechanical gripper arm, a punching machine is used to process the mechanical gripper arm. Prior to this, a clamping fixture is required to position and clamp the mechanical gripper arm. However, the positioning fixtures on the market have the following defects: In a machine clamp working environment, a pressure plate is generally used to clamp the workpiece. However, since the surface of the mechanical gripper arm is an irregular shape, when a clamp is used for clamping, the height of the gasket that cooperates with the pressure plate needs to be continuously adjusted, which affects the clamping efficiency and reduces the efficiency of punching of the mechanical gripper arm. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning fixture for drilling processing with a mechanical gripper arm, aiming to solve the problem in the prior art that when the above-mentioned positioning fixture is used, a pressure plate is generally used to clamp the workpiece in a machine clamp working environment. However, since the surface of the mechanical gripper arm is an irregular shape, when the fixture is used for clamping, it is necessary to continuously adjust the height of the gasket that cooperates with the pressure plate, which affects the clamping efficiency and reduces the efficiency of the mechanical gripper arm in punching processing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for drilling processing of a mechanical gripper arm, comprising a base plate and mounting plates mounted at both ends of the base plate, a positioning column is mounted on the surface of the base plate, and a square-structured pad is mounted on the surface of the base plate;

[0007] The surface of the bottom plate is connected to the vertical plate, the surface of the vertical plate is penetrated by an adjusting rod, the surface of the adjusting rod is movably connected to a movable block, one side of the movable block is connected to a clamping plate through a connecting plate, and the bottom surface of the clamping plate is connected to a protective gasket.

[0008] In order to facilitate punching, as a preferred positioning fixture for drilling processing of a mechanical grab arm of the utility model, the base plate is connected to the grab arm through a positioning column and a pad, and the surface of the grab arm is provided with holes to be processed.

[0009] In order to facilitate clamping, as a preferred positioning fixture for drilling processing of a mechanical gripper arm of the utility model, a receiving block is connected to the bottom of the inner wall of the vertical plate, and a rotating block is connected to one end of the adjusting rod close to the receiving block.

[0010] In order to facilitate rotation, as a preferred positioning fixture for drilling processing of a mechanical gripper arm of the utility model, the rotating block and the opening on one side of the receiving block form a rotating structure.

[0011] In order to facilitate up and down adjustment, as a preferred positioning fixture for drilling processing of a mechanical gripper arm of the utility model, the movable block is of T-shaped structure, and the opening at the center of the movable block is threadedly connected to the adjusting rod.

[0012] In order to facilitate fixation, as a preferred positioning fixture for drilling processing of a mechanical gripper arm of the utility model, a padding base is installed on the surface of the base plate, bolts are penetrated and connected to the surface of the padding base, and a padding slide rail is connected to the surface of the padding base.

[0013] For quick disassembly and assembly, as a preferred positioning fixture for drilling processing of a mechanical gripper arm of the utility model, the surface of the pad slide rail is slidably connected with a material ejecting slider, and the bottom surface of the material ejecting slider is provided with a material ejecting slide groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model utilizes the rotating adjustment rod to drive the clamping plate to move up and down, so that the distance between the clamping plate and the mechanical gripping arm can be adjusted at any time, thereby ensuring the tightness of the mechanical gripping arm, optimizing the clamping process, improving the clamping efficiency, and reducing the time wasted in clamping. In addition, by providing a top material slider with a sliding structure, it is convenient to pad the hole to be processed at the bottom of the gripping arm, avoiding the phenomenon of knife vibration during punching operation when the bottom is suspended in the air, avoiding roughness inside the processed hole, and also providing the same protection for the processing tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a schematic diagram of the positioning fixture structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the exploded structure of the grab arm and the positioning fixture of the utility model.

[0019] Figure 3 It is a schematic diagram of the vertical plate installation structure of the utility model.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the vertical plate of the present utility model.

[0021] Figure 5 It is a schematic diagram of the exploded structure of the ejecting slider of the utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the padding slide rail of the utility model;

[0023] Figure 7 It is a schematic diagram of the grabbing arm workpiece structure of the utility model.

[0024] In the figure: 1, bottom plate; 2, mounting plate; 3, grab arm; 4, hole to be processed; 5, positioning column; 6, pad; 7, vertical plate; 71, adjusting rod; 72, receiving block; 74, rotating block; 75, movable block; 76, clamping plate; 77, protective gasket; 8, gasket base; 81, bolt; 82, gasket slide rail; 83, top material slider; 84, top material slide chute. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] See also Figure 1-7 , the utility model provides the following technical solutions: a positioning fixture for drilling processing of a mechanical grab arm, comprising a base plate 1 and mounting plates 2 mounted at both ends of the base plate 1, a positioning column 5 is mounted on the surface of the base plate 1, and a square-structured pad 6 is mounted on the surface of the base plate 1;

[0027] The surface of the bottom plate 1 is connected to the vertical plate 7, the surface of the vertical plate 7 is penetrated by an adjusting rod 71, the surface of the adjusting rod 71 is movably connected to a movable block 75, one side of the movable block 75 is connected to a clamping plate 76 through a connecting plate, and the bottom surface of the clamping plate 76 is connected to a protective gasket 77.

[0028] Preferably, the bottom plate 1 is connected to the grab arm 3 through the positioning column 5 and the pad 6, and the surface of the grab arm 3 is provided with a hole 4 to be processed.

[0029] Preferably, a receiving block 72 is connected to the bottom of the inner wall of the vertical plate 7 , and a rotating block 74 is connected to one end of the adjusting rod 71 close to the receiving block 72 .

[0030] Preferably, the rotating block 74 and the opening on one side of the receiving block 72 form a rotating structure. The rotating block 74 rotates inside the receiving block 72, so that the adjusting rod 71 can be rotated in situ.

[0031] Preferably, the movable block 75 is in a T-shaped structure, and the opening at the center of the movable block 75 is threadedly connected to the adjustment rod 71. By rotating the adjustment rod 71, the movable block 75 can be easily driven to adjust up and down, thereby facilitating clamping.

[0032] Preferably, a pad base 8 is installed on the surface of the bottom plate 1, a bolt 81 is connected through the surface of the pad base 8, and a pad slide rail 82 is connected to the surface of the pad base 8. By passing the bolt 81 through the pad base 8, the material slide rail 82 can be assembled conveniently.

[0033] Preferably, the surface of the pad slide rail 82 is slidably connected with a material ejection slider 83, and the bottom surface of the material ejection slider 83 is provided with a material ejection chute 84. By slidingly docking the material ejection slider 83 on the surface of the pad slide rail 82, it is convenient to select the use of the material ejection slider 83, which is convenient for disassembly and assembly, and improves safety.

[0034] The specific working principle of the utility model when in use is as follows: first, by rotating the adjustment rod 71, the adjustment rod 71 is rotated along the vertical plate 7, and the rotation bottom of the adjustment rod 71 drives the movable block 75 to rise, and at the same time, the rotating block 74 at the bottom of the adjustment rod 71 rotates along the surface opening of the receiving block 72, at this time, the clamping plate 76 rises synchronously, and the personnel clamps the mechanical grab arm on the bottom plate 1. During the process, the mechanical grab arm is clamped and positioned by the positioning column 5 and the pad 6, and then the adjustment rod 71 is rotated in the opposite direction to clamp the clamping plate 76 and the mechanical grab arm, which is convenient for adjusting the clamping plate 76 and the mechanical grab arm at any time The distance between them ensures that the mechanical gripping arm is tightly clamped, optimizes the clamping process, improves the clamping efficiency, and reduces the time wasted in clamping. In addition, by setting the lifting slider 83 of the sliding structure, when it is used, first assemble the pad base 8 on the bottom plate 1, and then slide the lifting groove 84 on the bottom of the lifting slider 83 along the pad slide rail 82, so that the top of the lifting slider 83 and the bottom surface of the gripping arm 3 are padded with the processing position to be processed, so as to avoid the vibration of the tool during the punching operation when the bottom is suspended, and avoid the roughness inside the processed hole. In addition, it also provides the same protection for the processing tool.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning fixture for drilling processing of a mechanical gripper arm, comprising a base plate (1) and mounting plates (2) mounted on both ends of the base plate (1), characterized in that: A positioning column (5) is installed on the surface of the base plate (1), and a square-structured pad (6) is installed on the surface of the base plate (1); The surface of the bottom plate (1) is connected to a vertical plate (7), an adjusting rod (71) is connected through the surface of the vertical plate (7), a movable block (75) is movably connected to the surface of the adjusting rod (71), one side of the movable block (75) is connected to a clamping plate (76) via a connecting plate, and a protective gasket (77) is connected to the bottom surface of the clamping plate (76).

2. A positioning fixture for drilling processing of a mechanical gripper arm according to claim 1, characterized in that: The bottom plate (1) is connected to the gripping arm (3) via a positioning column (5) and a pad (6), and a hole position (4) to be processed is arranged on the surface of the gripping arm (3).

3. A positioning fixture for drilling processing of a mechanical gripper arm according to claim 1, characterized in that: The bottom of the inner wall of the vertical plate (7) is connected to a receiving block (72), and one end of the adjusting rod (71) close to the receiving block (72) is connected to a rotating block (74).

4. A positioning fixture for drilling processing of a mechanical gripper arm according to claim 3, characterized in that: The rotating block (74) and the receiving block (72) have an opening on one side to form a rotating structure.

5. The positioning fixture for drilling of a mechanical gripper arm according to claim 1, characterized in that: The movable block (75) is in a T-shaped structure, and an opening at the center of the movable block (75) is threadedly connected to the adjusting rod (71).

6. A positioning fixture for drilling processing of a mechanical gripper arm according to claim 1, characterized in that: A pad base (8) is installed on the surface of the base plate (1), a bolt (81) is connected through the surface of the pad base (8), and a pad slide rail (82) is connected to the surface of the pad base (8).

7. A positioning fixture for drilling processing of a mechanical gripper arm according to claim 6, characterized in that: The surface of the padding slide rail (82) is slidably connected with a material ejecting slider (83), and the bottom surface of the material ejecting slider (83) is provided with a material ejecting chute (84).

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