Mechanical hand feeding automatic positioning device

Abstract

The utility model relates to positioning device field, concretely is a kind of mechanical hand feeding automatic positioning device, including workbench, and the edge of workbench upper surface is fixedly installed with several baffle, still include: clamping part, several clamping parts are located on the upper surface of workbench, and clamping part includes connecting block, and the clamping block is connected and installed in the side of connecting block.The utility model is pushed to the corresponding position by multiple cylinders from multiple directions to the centering of sheet metal piece blank, can according to the travel of cylinder sheet metal piece blank is pushed to corresponding position, and it is convenient for mechanical hand to accurately take material in corresponding position, reach the accurate positioning effect of sheet metal piece blank, and the sliding insertion setting between connecting block and clamping block can realize the convenient and quick replacement of clamping block, so that the clamping block of corresponding shape can be selected to clamp and push positioning according to the sheet metal piece blank of different shape.

Description

Technical Field

[0001] This utility model relates to the field of positioning devices, and in particular to an automatic positioning device for robotic arms. Background Technology

[0002] In modern automated production, the loading and positioning device is a crucial link connecting material supply and processing steps, widely used in intelligent manufacturing processes such as machining, stamping, welding, assembly, and inspection. Its core function is to automatically adjust the workpiece from a disordered or roughly placed state to a precise state with accurate positioning, uniform posture, and easy gripping or clamping, providing reliable assurance for subsequent automated operations. In actual production, the gripping and positioning of sheet metal blanks is generally done manually by observing the robotic arm's running position. This positioning method has low accuracy and is prone to misalignment. Furthermore, traditional positioning devices struggle to position sheet metal blanks of different shapes and sizes. Therefore, this paper proposes an automatic positioning device for robotic arm loading. Utility Model Content

[0003] The main objective of this invention is to provide an automatic positioning device for robotic arms to solve the problems raised in related technologies.

[0004] To achieve the above objectives, according to one aspect of the present invention, an automatic positioning device for loading robotic arms is provided, including a worktable, with several baffles fixedly installed at the edge of the upper surface of the worktable, and further including: a clamping part, with several clamping parts disposed on the upper surface of the worktable, the clamping part including a connecting block, a clamping block being snapped onto one side of the connecting block, the connecting block driving the clamping block to push the sheet metal blank for positioning, and the clamping block being replaced to adapt to sheet metal blanks of different shapes.

[0005] Furthermore, two slide rails are symmetrically fixedly installed on the upper surface of the workbench.

[0006] Furthermore, several support blocks are slidably provided on the upper surface of the worktable.

[0007] Furthermore, a cylinder is fixedly installed on one side of the baffle, and a connecting block is fixedly installed on one end of the cylinder piston rod.

[0008] Furthermore, a mounting slot is provided on one side of the connecting block, and a mounting plug is fixedly installed on one side of the clamping block. The mounting plug is inserted into the mounting slot, and the mounting plug is a trapezoidal structure adapted to the mounting slot.

[0009] Furthermore, a push groove is provided on one side of the clamping block, and the push groove has a concave arc-shaped structure.

[0010] Furthermore, the inner wall of the mounting slot is provided with a telescopic groove, and a limit block is slidably installed in the telescopic groove. One end of the limit block is provided with a downward inclined angle. A pull shaft is fixedly installed on one side of the limit block. One end of the pull shaft passes through the connecting block and is exposed to the outside. A spring is fixedly installed on one side of the limit block. The other end of the spring is fixedly installed on the inner wall of the telescopic groove. A limit groove is provided on one side of the mounting block. One end of the limit block is inserted into the mounting block.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model uses multiple cylinders to push the sheet metal blank from multiple directions for centering. The sheet metal blank can be pushed to the corresponding position according to the stroke of the cylinders, which makes it convenient for the robot to accurately pick up the material at the corresponding position and achieve the accurate positioning effect of the sheet metal blank.

[0013] This invention enables convenient and quick replacement of the clamping block through the sliding connection between the connecting block and the clamping block, allowing for the selection of appropriate clamping blocks to clamp, push, and position sheet metal blanks of different shapes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the positioning device in a preferred embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the clamping part structure in a preferred embodiment of the present invention;

[0016] Figure 3 This is a cross-sectional view of the clamping part in a preferred embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the clamping block structure in a preferred embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the connecting block structure in a preferred embodiment of the present invention.

[0019] Figure label:

[0020] Workbench; 11. Baffle; 12. Slide rail; 13. Support block; 111. Cylinder;

[0021] Clamping part; 21, connecting block; 22, clamping block; 23, limiting block; 211, mounting slot; 212, telescopic groove; 221, mounting insert; 222, limiting groove; 223, push groove; 231, pull shaft; 232, spring. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] This embodiment provides an automatic positioning device for a robotic arm, including a worktable 1. Several baffles 11 are fixedly installed at the edge of the upper surface of the worktable 1. A cylinder 111 is fixedly installed on one side of each baffle 11. The multiple cylinders 111 push the sheet metal blank from multiple directions for centering. Figure 1 As shown, in order to prevent the sheet metal blank on the workbench 1 from having high resistance to movement and affecting the smoothness of feeding, two slide rails 12 are symmetrically fixedly installed on the upper surface of the workbench 1. Several support blocks 13 are slidably provided on the upper surface of the workbench 1. The support blocks 13 provide multiple support points. The slide rails 12 support the sheet metal blank, reducing the contact range between the sheet metal blank and the workbench 1, so as to reduce contact friction. The robot arm transports the sheet metal blank to the workbench 1 through its suction cup. After the clamping part 2 positions and centers the sheet metal blank, the robot arm transports the centered sheet metal blank to the stamping machine.

[0024] It also includes: a clamping part 2, a plurality of clamping parts 2 are disposed on the upper surface of the worktable 1, the clamping part 2 includes a connecting block 21, the connecting block 21 is fixedly installed at one end of the piston rod of the cylinder 111, the cylinder 111 drives the connecting block 21 to move horizontally, and a clamping block 22 is clamped and installed on one side of the connecting block 21. The connecting block 21 drives the clamping block 22 to push the sheet metal blank for positioning. The sheet metal blank can be pushed to the corresponding position according to the stroke of the cylinder 111, so that the robot can accurately pick up the material at the corresponding position and achieve the accurate positioning effect of the sheet metal blank.

[0025] The clamping block 22 can be replaced to accommodate sheet metal blanks of different shapes. The connecting block 21 drives the clamping block 22 forward, gently pushing the sheet metal blank for positioning; for example... Figure 2 , Figure 3 As shown, to facilitate the replacement of different clamping blocks 22, a mounting slot 211 is provided on one side of the connecting block 21, and a mounting insert 221 is fixedly installed on one side of the clamping block 22. The mounting insert 221 is inserted into the mounting slot 211. The mounting insert 221 has a trapezoidal structure that is adapted to the mounting slot 211. When changing the workpiece type, it is only necessary to remove the current clamping block 22 and replace it with a clamping block 22 that matches the contour of the new workpiece. The trapezoidal insertion structure can prevent the clamping block 22 from slipping out of the connecting block 21. Align the trapezoidal mounting insert 221 of the clamping block 22 with the mounting slot 211 of the connecting block 21, and insert it vertically downwards until it reaches the bottom; Figure 4 As shown, a push groove 223 is provided on one side of the clamping block 22. The push groove 223 has a concave arc-shaped structure. The concave arc-shaped push groove 223 increases the contact area, conforms to the edge shape of the circular sheet metal part, and achieves uniform force distribution; as shown Figure 5 As shown, the inner wall of the mounting slot 211 has a telescopic groove 212. A limiting block 23 is slidably installed in the telescopic groove 212. One end of the limiting block 23 has a downwardly inclined angle. A pull shaft 231 is fixedly installed on one side of the limiting block 23. One end of the pull shaft 231 passes through the connecting block 21 and is exposed to the outside. A spring 232 is fixedly installed on one side of the limiting block 23. The other end of the spring 232 is fixedly installed on the inner wall of the telescopic groove 212. A limiting groove 222 is opened on one side of the mounting block 221. One end of the limiting block 23 is inserted into the mounting block 221. When the clamping block 22 is inserted into the connecting block 21 within the mounting block 221, the edge of the mounting block 221 presses against the beveled surface of the limiting block 23, causing the limiting block 23 to retract into the telescopic groove 212 and compress the spring 232. When the limiting block 23 aligns with the limiting groove 222, the spring 232 returns to its original position, pushing the limiting block 23 into the limiting groove 222, thus completing the self-locking. When removing the clamping block 22, the operator pulls the pull shaft 231 outward to disengage the limiting block 23 from the limiting groove 222, and then pulls the clamping block 22 upward to complete the replacement.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An automatic positioning device for a robotic arm, comprising a worktable (1), wherein a plurality of baffles (11) are fixedly installed at the edge of the upper surface of the worktable (1), characterized in that, Also includes: Clamping part (2): Several clamping parts (2) are provided on the upper surface of the worktable (1). The clamping part (2) pushes the sheet metal blank to the corresponding position, so that the robot can pick up the material at the corresponding position. The clamping part (2) includes a connecting block (21). A clamping block (22) is installed on one side of the connecting block (21). The connecting block (21) drives the clamping block (22) to push the sheet metal blank for positioning. The clamping block (22) can be replaced to adapt to sheet metal blanks of different shapes.

2. The automatic positioning device for robotic arm loading according to claim 1, characterized in that, Two slide rails (12) are symmetrically fixed on the upper surface of the workbench (1).

3. The automatic positioning device for robotic arm loading according to claim 1, characterized in that, Several support blocks (13) are slidably provided on the upper surface of the workbench (1).

4. The automatic positioning device for robotic arm loading according to claim 1, characterized in that, A cylinder (111) is fixedly installed on one side of the baffle (11), and a connecting block (21) is fixedly installed on one end of the piston rod of the cylinder (111).

5. The automatic positioning device for robotic arm loading according to claim 1, characterized in that, The connecting block (21) has an installation slot (211) on one side, and the clamping block (22) has an installation plug (221) fixedly installed on one side. The installation plug (221) is inserted into the installation slot (211) and the installation plug (221) is a trapezoidal structure that is compatible with the installation slot (211).

6. The automatic positioning device for robotic arm loading according to claim 1, characterized in that, The clamping block (22) has a push groove (223) on one side, and the push groove (223) has a concave arc structure.

7. The automatic positioning device for robotic arm loading according to claim 5, characterized in that, The inner wall of the mounting slot (211) is provided with a telescopic groove (212). A limiting block (23) is slidably installed in the telescopic groove (212). One end of the limiting block (23) is provided with a downward inclined angle. A pull shaft (231) is fixedly installed on one side of the limiting block (23). One end of the pull shaft (231) passes through the connecting block (21) and is exposed to the outside. A spring (232) is fixedly installed on one side of the limiting block (23). The other end of the spring (232) is fixedly installed on the inner wall of the telescopic groove (212). A limiting groove (222) is provided on one side of the mounting plug (221). One end of the limiting block (23) is inserted into the mounting plug (221).

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