Robot rigidity performance testing device

Abstract

The utility model relates to the technical field of rigidity performance testing of robots, and solves the problem that mechanical arms cannot be accurately and firmly fixed during fixing due to the fact that the mechanical arms are different in model and specification, the concave and convex surfaces of the surfaces of the mechanical arms are inconsistent, and a fixing structure is relatively flat. The robot rigidity performance testing device comprises a workbench, sliding grooves are symmetrically formed in the edges of the two sides of the top of the workbench, U-shaped bases are slidably connected into the sliding grooves, the tops of the U-shaped bases are connected with connecting bases in a sleeved mode, and electric push rods are arranged on the surfaces of the connecting bases; a balancing weight used for testing the rigidity of the robot is arranged at the bottom of the electric push rod, and a positioning assembly used for improving the stability of the robot in the testing period is arranged in the middle of the top of the workbench and comprises a bottom plate arranged in the middle of the top of the workbench. The edges of the two sides of the top of the bottom plate are fixedly connected with fixing plates in an axial symmetry mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to robot rigidity performance test technical field, concretely is a robot rigidity performance testing device. BACKGROUND

[0002] The rigidity testing device applied to the industrial robot disclosed by the application has the advantages that the device can be fixed to different mechanical arms with different lengths and shapes through the test table, and the test can avoid causing the mechanical arm to be damaged due to unfirm fixation.

[0003] The device can be fixed to different mechanical arms with different lengths and shapes through the test table, and the test can avoid causing the mechanical arm to be damaged due to unfirm fixation.

[0004] However, due to different models and specifications of the mechanical arms, the surfaces of the mechanical arms are inconsistent in curvature, and the fixing structure is relatively flat, so that the mechanical arms cannot be accurately and firmly fixed during fixation, and the stability of the rigidity performance test is not high. UTILITY MODEL CONTENTS

[0005] The robot rigidity performance testing device provided by the utility model solves the problem that the surfaces of the mechanical arms are inconsistent in curvature due to different models and specifications of the mechanical arms, and the fixing structure is relatively flat, so that the mechanical arms cannot be accurately and firmly fixed during fixation.

[0006] To achieve the above object, the utility model provides the following technical scheme: a robot rigidity performance testing device, comprising a workbench, symmetrically arranged sliding grooves are arranged at the edges of the top of the workbench, a U-shaped seat is slidably connected to the inside of the sliding grooves, a connecting seat is sleeved on the top of the U-shaped seat, an electric push rod is arranged on the surface of the connecting seat, a counterweight for testing the rigidity of the robot is arranged at the bottom of the electric push rod, and a positioning assembly for improving the stability of the robot during testing is arranged at the middle of the top of the workbench.

[0007] In a specific embodiment, the positioning assembly comprises a bottom plate arranged in the middle of the top of the workbench, and fixedly connected with the fixed plates in an axis-symmetric manner at the edges on both sides of the top of the bottom plate, and the surface of the fixed plate is provided with a threaded hole, and the threaded hole is threadedly connected with a threaded rod, and the end of the threaded rod is movably connected with a positioning plate, and the surface of the positioning plate is provided with a plurality of circular hole grooves in an annular array, and the inside of the circular hole groove is fixedly connected with a spring, and the end of the spring is fixedly connected with a positioning sheet, and the surface of the positioning sheet is provided with a rubber pad for increasing friction and protecting the paint surface of the robot.

[0008] In a specific embodiment, the surface of the connecting seat is fixedly connected with square plates on both sides, and the surface of the square plate is provided with a sliding groove.

[0009] In a specific embodiment, the two sides of the counterweight block are provided with sliding blocks, and the surface of the sliding block is slidably connected with the inside of the sliding groove.

[0010] In a specific embodiment, the two sides of the U-shaped seat are provided with handles, and the surface of the handle is sleeved with a non-slip sleeve.

[0011] In a specific embodiment, the bottom of the workbench is fixedly connected with support seats at the four corners, and the bottom of the support seat is provided with a shock pad.

[0012] Compared with the prior art, the robot rigidity performance testing device has the following beneficial effects:

[0013] In the technical scheme disclosed by the utility model, the counterweight block is vertically loaded through the electric push rod, the two sliding blocks and the sliding grooves of the connecting seat form a bidirectional guiding structure, the position of the U-shaped seat in the sliding groove is adjustable, the rigidity testing requirements of the robot joints at multiple angles are met, the elastic contact array is formed by the positioning sheets in the annular array of the positioning assembly and the springs, when the rotating threaded rod pushes the positioning plate, each positioning sheet can independently stretch and shrink according to the surface curvature of the mechanical arm, three-dimensional curved surface adaptive fitting is realized, the workpiece clamping contact area is improved, the uniformity of the clamping force distribution is improved, workpiece slipping during testing is effectively prevented, and the efficiency of rigidity testing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a workbench structure schematic view of the utility model;

[0017] Figure 3 It is the electric push rod structure schematic view of the utility model;

[0018] Figure 4 It is the positioning assembly structure schematic view of the utility model.

[0019] In the drawing: 1, workbench; 2, sliding groove; 3, U-shaped seat; 4, connecting seat; 5, electric push rod; 6, counterweight block; 7, positioning assembly; 71, bottom plate; 72, fixed plate; 73, threaded rod; 74, positioning plate; 75, round hole groove; 76, spring; 77, positioning sheet; 8, square plate; 9, sliding block; 10, push handle. DETAILED DESCRIPTION

[0020] The embodiment of the application will be described in detail below with the accompanying drawings and examples, so that the realization process of how the application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0021] Figures 1-4 For an embodiment of the utility model, a robot rigidity performance testing device, including workbench 1, the edge of the top of workbench 1 both sides symmetrically is opened with sliding groove 2, and the inside sliding connection of sliding groove 2 has U-shaped seat 3, and the top of U-shaped seat 3 is connected with connecting seat 4, and the surface of connecting seat 4 is provided with electric push rod 5, and the bottom of electric push rod 5 is provided with counterweight block 6 for testing the rigidity of robot, and the middle of the top of workbench 1 is provided with positioning assembly 7 for improving the stability during robot testing.

[0022] The specific problem that the specific embodiment is aimed at is that because the model specifications of mechanical arms are different, the surface of the mechanical arms is inconsistent in curvature, and the fixed structure is relatively flat, so that the mechanical arms cannot be accurately and firmly fixed when fixed.The utility model utilizes the setting of positioning assembly 7, counterweight block 6 is vertically loaded by electric push rod 5, the sliding groove of both sides sliding block 9 and connecting seat 4 forms bidirectional guiding structure, cooperates the adjustability of the position of U-shaped seat 3 in sliding groove 2, satisfies the multi-angle rigidity testing demand of each joint of robot, and the positioning sheet 77 of annular array in positioning assembly 7 cooperates spring 76 to form elastic contact array, when rotating threaded rod 73 pushes positioning plate 74, each positioning sheet 77 can independently stretch and retract according to the surface curvature of mechanical arm, realizes three-dimensional curved surface self-adaptive fitting, improves workpiece clamping contact area, improves clamping force distribution uniformity, effectively prevents workpiece slip during testing, and improves the efficiency of rigidity testing.

[0023] The positioning assembly 7 comprises a bottom plate 71 arranged at the middle of the top of the workbench 1, and the edges on both sides of the top of the bottom plate 71 are fixedly connected in an axis-symmetrical manner with fixed plates 72, and the surface of the fixed plate 72 is provided with threaded holes, and the threaded holes are in threaded connection with threaded rods 73, and one end of the threaded rod 73 is movably connected with a positioning plate 74, and in the embodiment, the surface of the positioning plate 74 is provided with a plurality of circular hole grooves 75 in an annular array, and the inside of the circular hole groove 75 is fixedly connected with a spring 76, and one end of the spring 76 is fixedly connected with a positioning piece 77, and the surface of the positioning piece 77 is provided with a rubber pad for increasing friction and protecting the paint surface of the robot. The positioning piece 77 in the annular array of the positioning assembly 7 cooperates with the spring 76 to form an elastic contact array, and when the threaded rod 73 is rotated to push the positioning plate 74, each positioning piece 77 can independently stretch and contract according to the surface curvature of the mechanical arm, so that the three-dimensional curved surface is self-adapted, the workpiece clamping contact area is improved, the uniformity of the clamping force distribution is improved, the workpiece slip during testing is effectively prevented, and the efficiency of the rigidity test is improved.

[0024] In the embodiment, the surface of the connecting seat 4 is fixedly connected with square plates 8 on both sides, and the surface of the square plate 8 is provided with a sliding groove, and the two sides of the counterweight block 6 are provided with sliding blocks 9, and the surface of the sliding block 9 is in sliding connection with the inside of the sliding groove, and the two sides of the U-shaped seat 3 are provided with push handles 10, and the surface of the push handle 10 is sleeved with a non-slip sleeve, and the four corners of the bottom of the workbench 1 are fixedly connected with supporting seats, and the bottom of the supporting seat is provided with a shock pad.

[0025] The control mode of the utility model is automatically controlled through the controller, and the control circuit of the controller can be realized through simple programming by the person skilled in the art, and the power supply also belongs to the public knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the control mode and the circuit connection of the utility model will not be explained in detail.

[0026] It should be noted that in this paper, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A robot rigidity performance testing device comprising a worktable (1), characterized in that: The workbench (1) top two sides of the edge of the chute (2) is symmetrically opened, and the inside of the chute (2) is slidably connected with a U-shaped seat (3), and the top of the U-shaped seat (3) is sleeved with a connecting seat (4), and the surface of the connecting seat (4) is provided with an electric push rod (5), and the bottom of the electric push rod (5) is provided with a counterweight (6) for testing the rigidity of the robot, and the middle of the top of the workbench (1) is provided with a positioning assembly (7) for improving the stability of the robot during testing; The positioning assembly (7) includes a bottom plate (71) disposed on the top of the workbench (1), and the edges of the top of the bottom plate (71) are fixedly connected with the fixed plates (72) in axial symmetry, and the surface of the fixed plate (72) is provided with a threaded hole, and the inside of the threaded hole is threadedly connected with a threaded rod (73), and one end of the threaded rod (73) is movably connected with a positioning plate (74).

2. The robotic rigidity performance testing device of claim 1, wherein: The surface of the positioning plate (74) is annularly arranged with a plurality of circular grooves (75), and the inside of the circular grooves (75) is fixedly connected with springs (76), and one end of the spring (76) is fixedly connected with a positioning piece (77), and the surface of the positioning piece (77) is provided with a rubber pad for increasing friction and protecting the paint surface of the robot.

3. The robotic rigidity performance testing device of claim 1, wherein: The surface of the connecting seat (4) is fixedly connected with a square plate (8), and the surface of the square plate (8) is provided with a sliding groove.

4. The robotic rigidity performance testing device of claim 1, wherein: The two sides of the counterweight (6) are provided with sliding blocks (9), and the surface of the sliding block (9) is slidably connected with the inside of the sliding groove.

5. The robotic rigidity performance testing device of claim 1, wherein: The two sides of the U-shaped seat (3) are provided with push hands (10), and the surface of the push hands (10) is sleeved with a non-slip sleeve.

6. The robotic rigidity performance testing device of claim 1, wherein: The bottom of the workbench (1) is fixedly connected with a support seat at the four corners, and the bottom of the support seat is provided with a shock pad.

Images