Clamping device for drilling machining of mechanical arm

Abstract

The utility model relates to a clamping device for mechanical arm drilling, and belongs to the technical field of mechanical arm machining, the clamping device comprises a workbench, a clamping mechanism and a guiding and positioning mechanism are arranged on the workbench, the guiding and positioning mechanism comprises a stop plate and symmetrically arranged guiding assemblies, and each guiding assembly comprises a guiding plate and a first air cylinder; the first air cylinder is fixed to the workbench, the guide plates are connected to the workbench in a sliding mode, and a guide channel is formed between the guide plates on the two sides. The device is simple in structure, accurate setting is carried out according to the structure of the mechanical arm, centering clamping is carried out at the joint hole of the mechanical arm through the three-jaw chuck, then position limiting is carried out from the side portion and the tail portion through the side portion clamping assembly, then the mechanical arm can be well clamped and fixed to the workbench, follow-up drilling is facilitated, and meanwhile the machining efficiency is improved. The whole clamping device can be assembled in a production line to be used, rapid clamping can be carried out, and therefore the production efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of robotic arm processing, and in particular to a clamping device for robotic arm drilling processing. Background Art

[0002] Currently, if Figure 1 During the processing of the robot arm 1 shown, several connection holes need to be processed around the joint hole 11. The fixture structure used in the prior art is relatively complex and inconvenient to use. At the same time, a crane is required for lifting, which is less safe.

[0003] Therefore, there is an urgent need to develop a clamping device that is convenient to clamp and safe. Utility Model Content

[0004] The purpose of this application is to provide a clamping device for drilling processing with a robotic arm to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present application provides a clamping device for drilling machining with a robotic arm, which adopts the following technical solutions:

[0006] A clamping device for drilling processing with a robotic arm includes a workbench, the workbench is provided with a clamping mechanism and a guide positioning mechanism, the guide positioning mechanism includes a stop plate and a symmetrically arranged guide assembly, the guide assembly includes a guide plate and a first cylinder, the first cylinder is fixed to the workbench, the guide plate is slidably connected to the workbench, a guide channel is formed between the guide plates on both sides, the stop plate is fixed to the workbench and is arranged on the central axis of the guide channel;

[0007] The clamping mechanism includes a second cylinder, a support platform, a three-jaw chuck and a side clamping assembly. The workbench is provided with a through groove near the stop plate. The second cylinder is vertically arranged at the bottom of the workbench. The support platform is fixed to the end of the piston rod of the second cylinder. The three-jaw chuck is rotatably connected to the support platform. The side clamping assembly includes a symmetrically arranged waist clamping cylinder and a tail clamping cylinder. The piston rod ends of the waist clamping cylinder and the tail clamping cylinder are both fixed with connecting blocks, and a clamping rod is fixed on the connecting block. A movable groove is provided at the position corresponding to the clamping rod on the workbench, and a yield groove is provided on the guide plate corresponding to the position of the clamping rod.

[0008] Preferably, in order to better clamp the robotic arm, an arc-shaped block is fixed on the clamping jaws of the three-jaw chuck, and the side of the arc-shaped block is wrapped with a rubber pad.

[0009] The surface of the clamping rod is also wrapped with a rubber pad.

[0010] Preferably, in order to make the mechanical arm slide flexibly, the workbench surface, the stop plate surface and the guide plate surface are smooth surfaces.

[0011] Preferably, in order to avoid the mechanical arm being stuck at the through groove and causing wear to the mechanical arm, a chamfer is formed on the upper surface of the through groove near the stop plate.

[0012] To sum up, the present application has at least one of the following beneficial technical effects: the mechanical arm drilling clamping device has a simple structure, is accurately set according to the structure of the mechanical arm, is centered and clamped at the joint hole of the mechanical arm by the three-jaw chuck, is position-limited from the side and the tail by the side clamping assembly, and thus the mechanical arm can be better clamped and fixed on the workbench, so as to facilitate subsequent drilling. At the same time, the entire clamping device can be assembled in the production line and can be quickly clamped, thereby improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of a mechanical arm in the prior art.

[0014] Figure 2 is a structural schematic diagram of the whole structure of the embodiment of the present application.

[0015] Figure 3 is a structural schematic diagram of the embodiment of the present application from different perspectives.

[0016] Mark explanation: 1, mechanical arm; 11, joint hole; 2, workbench; 21, through groove; 22, movable groove; 31, stop plate; 32, guide plate; 321, let go of the slot; 33, first air cylinder; 41, second air cylinder; 42, support table; 43, three-jaw chuck; 44, waist clamping cylinder; 45, tail clamping cylinder; 46, connecting block; 47, clamping rod; 5, arc block. DETAILED DESCRIPTION

[0017] The following will be combined with the Figures 2-3 The present application is further described in detail.

[0018] The embodiment of the present application discloses a kind of clamping devices for mechanical arm drilling, referring to Figures 2-3 , including workbench 2, workbench 2 is provided with clamping mechanism and guide positioning mechanism, guide positioning mechanism includes stop plate 31 and symmetrically arranged guide component, guide component includes guide plate 32 and first air cylinder 33, first air cylinder 33 is fixed on workbench 2, guide plate 32 is slidably connected on workbench 2, and guide channel is formed between two side guide plates 32, stop plate 31 is fixed on workbench 2, and is set on the axis of guide channel;

[0019] The clamping mechanism comprises a second cylinder 41, a supporting table 42, a three-jaw chuck 43 and a side clamping assembly. The workbench 2 is provided with a through groove 21 beside the stop plate 31. The second cylinder 41 is vertically arranged at the bottom of the workbench 2. The supporting table 42 is fixed to the end of the piston rod of the second cylinder 41. The three-jaw chuck 43 is rotatably connected to the supporting table 42. The three-jaw chuck 43 is a pneumatic three-jaw chuck 43. The side clamping assembly comprises a waist clamping cylinder 44 and a tail clamping cylinder 45 arranged symmetrically. The end of the piston rod of the waist clamping cylinder 44 and the tail clamping cylinder 45 is fixed with a connecting block 46. The connecting block 46 is fixed with a clamping rod 47. The surface of the clamping rod 47 is also wrapped with a rubber pad. The workbench 2 is provided with a movable groove 22 corresponding to the position of the clamping rod 47. The guide plate 32 is provided with a slot 321 corresponding to the position of the clamping rod 47.

[0020] The surface of the workbench 2, the surface of the stop plate and the surface of the guide plate 32 are smooth surfaces.

[0021] Referring to Figure 2 In order to better clamp the mechanical arm, the jaw of the three-jaw chuck 43 is fixed with an arc-shaped block 5. The side of the arc-shaped block 5 is wrapped with a rubber pad.

[0022] In order to avoid the mechanical arm being clamped at the through groove 21 and causing wear to the mechanical arm, the upper surface of the through groove 21 near the stop plate 31 is provided with a chamfer (not shown in the figure).

[0023] The implementation principle of the clamping device for the mechanical arm drilling machining in the embodiment of the application is as follows:

[0024] The mechanical arm can be conveyed to the clamping device by the conveying line and pushed onto the workbench 2 under the external force of manual or cylinder. The mechanical arm is pushed to the stop plate 31 along the guide channel. At this time, the second cylinder 41 drives the supporting table 42 to rise, thereby driving the three-jaw chuck 43 to lift up into the joint hole of the mechanical arm. The three-jaw chuck 43 works to support the mechanical arm from the joint hole. The waist clamping cylinder 44 and the tail clamping cylinder 45 in the side clamping assembly work simultaneously to push and clamp the mechanical arm from both sides of the body of the mechanical arm. The clamping effect is good, so as to facilitate the subsequent drilling work.

[0025] The above are the preferred embodiments of the application, which do not limit the protection scope of the application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A clamping device for drilling processing with a robotic arm, characterized by: The invention comprises a workbench (2), wherein the workbench (2) is provided with a clamping mechanism and a guide positioning mechanism, wherein the guide positioning mechanism comprises a stop plate (31) and a symmetrically arranged guide assembly, wherein the guide assembly comprises a guide plate (32) and a first cylinder (33), wherein the first cylinder (33) is fixed on the workbench (2), and the guide plate (32) is slidably connected to the workbench (2), and a guide channel is formed between the guide plates (32) on both sides, wherein the stop plate (31) is fixed on the workbench (2) and is arranged on the central axis of the guide channel. The clamping mechanism includes a second cylinder (41), a support platform (42), a three-jaw chuck (43) and a side clamping assembly. The workbench (2) is provided with a through groove (21) near the stop plate (31). The second cylinder (41) is vertically arranged at the bottom of the workbench (2). The support platform (42) is fixed to the end of the piston rod of the second cylinder (41). The three-jaw chuck (43) is rotatably connected to the support platform (42). The side clamping assembly The invention comprises a waist clamping cylinder (44) and a tail clamping cylinder (45) which are symmetrically arranged. The piston rod ends of the waist clamping cylinder (44) and the tail clamping cylinder (45) are fixed with a connecting block (46). A clamping rod (47) is fixed on the connecting block (46). A movable groove (22) is provided on the workbench (2) at a position corresponding to the clamping rod (47). A clearance groove (321) is provided on the guide plate (32) at a position corresponding to the clamping rod (47).

2. The clamping device for drilling machining with a robotic arm according to claim 1, characterized in that: An arc-shaped block (5) is fixed on the jaws of the three-jaw chuck (43), and the side of the arc-shaped block (5) is wrapped with a rubber pad.

3. The clamping device for drilling machining with a robot arm according to claim 1, characterized in that: The surface of the clamping rod (47) is also wrapped with a rubber pad.

4. The clamping device for drilling machining with a robot arm according to claim 1, characterized in that: The surface of the workbench (2), the surface of the stop plate and the surface of the guide plate (32) are all smooth surfaces.

5. The clamping device for drilling machining by a robotic arm according to claim 1, characterized in that: The upper surface of the through groove (21) close to the stop plate (31) is provided with a chamfer.

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