Hollow cup joint testing device

Abstract

The utility model relates to the field of coreless joint testing devices, in particular to a coreless joint testing device. The clamping mechanism is composed of a threaded shaft, a set of arm grooves, a limiting sliding groove, a sliding block and the like, and the load bearing mechanism is composed of a fixed pulley, a pull rope, a detachable and replaceable pressing block and the like. Compared with the prior art, the device has the advantages that the device is firstly provided with the clamping mechanism for clamping the mechanical arm of the dexterous hand with the hollow cup joint structure to be tested, a tested object is fixed, subsequent testing is facilitated, other variables generated in the testing link are prevented from influencing result data, and the testing efficiency is improved. The device is also provided with a load-bearing stretching mechanism which can be detachably adjusted, and certain force is provided for the pull rope through the action of a heavy object, so that whether the coreless joint can be correspondingly borne or not can be conveniently tested.

Description

Technical Field

[0001] The utility model relates to the field of hollow cup joint testing devices, in particular to a hollow cup joint testing device. Background Art

[0002] The mechanical dexterous hand is the part of the hand wall and palm of the bionic robot. Its movement and grasping functions are realized by multiple hollow cup joints arranged in the mechanism. The hollow cup joints include hollow cup motors, multi-stage planetary reducers, encoders and drivers, etc. After the design or assembly is completed, it is necessary to test the functional quality of the mechanical dexterous hand, that is, to carry out load-bearing tests on the hollow cup joint structures in the dexterous hand mechanical arm. A hollow cup joint testing device is provided to determine whether it can achieve and reach the standard of bearing a certain weight. Utility Model Content

[0003] 1. Technical Problems Solved

[0004] The technical problem to be solved by the utility model is to test whether the load-bearing capacity of a mechanical dexterous hand composed of and controlled by a hollow cup joint meets the standard after the design and assembly are completed.

[0005] 2. Technical Solution

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a hollow cup joint testing device, comprising a support, and a test table is connected to one side of the top of the support.

[0007] The support is located below the test bench and is rotatably connected to a threaded shaft. A partition is connected at the center of the threaded shaft. The threaded shaft is located on both sides of the partition and is arranged in opposite directions of the external threaded structures. The threaded shaft is located on both sides of the partition and is connected to a clamping frame with an internal threaded structure at the bottom. The top of the clamping frame is connected to an arm groove.

[0008] The top of the support is connected to a bracket at one end away from the test bench, the bracket is connected to a support shaft, the support shaft is rotatably connected to a fixed pulley, the fixed pulley is connected to a pull rope, the stretching bottom is connected to a support plate, the support plate is connected to a plurality of through holes, a base is connected to the support below the fixed pulley, a pressure block is connected to the base, a slot matching the support plate is connected to the pressure block, a plurality of card slots matching the through holes are connected to the pressure block on both sides of the slot, an electric telescopic rod is connected to the pressure block on one side of the slot, and a card block matching the card slot is connected to the moving end of the electric telescopic rod.

[0009] Furthermore, the support is located on one side below the test bench and is connected to a driving motor that matches the threaded shaft and is used to provide power for the rotation of the threaded shaft.

[0010] Furthermore, limiting slide grooves are connected on both sides of the test table, and sliding blocks matching the limiting slide grooves are connected on both ends of the bottom of the clamping frame to provide limiting effect for the movement of the clamping frame under the rotation of the threaded shaft.

[0011] Furthermore, a pull ring is connected to one end of the pull rope away from the support plate, so that the corresponding part of the mechanical dexterous hand clamped on the test table can pull the pull rope, thereby performing a bearing test on the hollow cup joint.

[0012] Furthermore, the base is connected with a placement groove that matches the pressure block to facilitate fixing the pressure block. A plurality of dampers are connected between the base and the support to prevent the pull rope from breaking when the test fails, so as to prevent the impact between the support and the pressure block when it falls.

[0013] 3. Beneficial Effects

[0014] Compared with the prior art, the advantages of the utility model are: the device is firstly provided with a clamping mechanism for clamping the dexterous hand mechanical arm with the hollow cup joint structure to be tested, so as to fix the object to be tested, facilitate subsequent testing, and avoid other variables in the test link affecting the result data; the device is also provided with a detachable and adjustable load-bearing stretching mechanism, which provides a certain force for the pull rope through the action of the weight, thereby facilitating the test of whether the hollow cup joint can bear the corresponding load. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the appearance of a hollow cup joint testing device of the utility model. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the appearance of a hollow cup joint testing device of the utility model. Figure 2 .

[0017] Figure 3 The utility model is a schematic diagram of the internal structure of a hollow cup joint testing device.

[0018] Figure 4 It is a partial appearance structure diagram of a hollow cup joint testing device of the utility model.

[0019] Figure 5 It is a partial internal structure schematic diagram of a hollow cup joint testing device of the utility model.

[0020] Figure 6 It is a schematic diagram of the structure of part A.

[0021] As shown in the figure: 1. support, 2. test table, 3. threaded shaft, 4. drive motor, 5. partition, 6. clamping frame, 7. arm slot, 8. slider, 9. limit slide slot, 10. bracket, 11. support shaft, 12. fixed pulley, 13. pull rope, 14. pull ring, 15. support plate, 16. through hole, 17. base, 18. damper, 19. placement groove, 20. pressure block, 21. slot, 22. electric telescopic rod, 23. card block, 24. card slot. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Embodiment 1

[0024] Combined with Figure 1-2 In order to solve the above technical problems, the technical solution provided by the utility model is: a hollow cup joint testing device, comprising a support 1, and a test table 2 is connected to one side of the top of the support 1.

[0025] The test bench 2 provides a testing site for the hollow cup joint structure of the dexterous hand to withstand forces.

[0026] Embodiment 2

[0027] Combined with Figure 1-2 The support 1 is located below the test bench 2 and is rotatably connected to a threaded shaft 3. The support 1 is located on one side below the test bench 2 and is connected to a driving motor 4 that matches the threaded shaft 3, which is used to provide power for the rotation of the threaded shaft 3. A partition 5 is connected at the center of the threaded shaft 3. The threaded shaft 3 is located on both sides of the partition 5 and the external thread structures are arranged in opposite directions. The threaded shaft 3 is located on both sides of the partition 5 and is connected to a clamping frame 6 with an internal thread structure at the bottom. The support 1 is located on one side below the test bench 2 and is connected to a driving motor 4 that matches the threaded shaft 3, which is used to provide power for the rotation of the threaded shaft 3. An arm slot 7 is connected to the top of the clamping frame 6.

[0028] The threaded shaft 3 is driven to rotate by driving the motor 4, and the two arm slots 7 are relatively moved on the test table 2 under the limiting action of the slider 8 and the limiting slide slot 9, so as to clamp the dexterous hand robot arm.

[0029] Embodiment 3

[0030] Combined with Figure 1-6The top of the support 1 is upwardly connected to a bracket 10 away from the end of the test table 2, and a support shaft 11 is connected inside the bracket 10. A fixed pulley 12 is rotatably connected to the support shaft 11, and a pull rope 13 is connected to the fixed pulley 12. A support plate 15 is connected to the bottom of the stretching, and a plurality of through holes 16 are connected to the support plate 15. A base 17 is connected below the fixed pulley 12 in the support 1, and a pressure block 20 is connected to the base 17. A slot 21 that matches the support plate 15 is connected to the pressure block 20. A plurality of slots 24 that match the through holes 16 are connected to the pressure block 20 on both sides of the slot 21. The pressure block 20 is located at An electric telescopic rod 22 is connected to one side of the slot 21, and a block 23 that cooperates with the slot 24 is connected to the movable end of the electric telescopic rod 22. A placement groove 19 that cooperates with the pressure block 20 is connected to the base 17 to fix the pressure block 20. A plurality of dampers 18 are commonly connected between the base 17 and the support 1 to prevent the pull rope 13 from breaking when the test fails, and the pressure block 20 hits the base 17 heavily, so as to buffer the impact between the support 1 and the pressure block 20 when falling. A pull ring 14 is connected to the end of the pull rope 13 away from the support plate 15, so as to facilitate the mechanical dexterous hand clamped on the test table 2 to pull the pull rope 13 at the corresponding part, thereby performing a bearing test on the hollow cup joint.

[0031] The electric telescopic rod 22 in the pressing block 20 drives the clamping block 23 to be inserted into the clamping slot 24 and the through hole 16 on the support plate 15, so that the pressing block 20 and the support plate 15 are fixedly connected together. Through the cooperation of the fixed pulley 12 and the pull rope 13, the mechanical dexterous hand can pull up the pressing block 20 through the pull ring 14, thereby realizing the load-bearing test of the corresponding hollow cup joint in the dexterous hand.

[0032] When the device is used to test the bearing capacity of the hollow cup joint structure in the mechanical dexterous hand, the dexterous hand mechanical arm is placed on the test table 2, and the clamping frame 6 with arm slots 7 on both sides is moved toward the mechanical arm by rotating the threaded shaft 3 to clamp it, and the pull ring 14 on one end of the pull rope 13 is put on the corresponding mechanical finger parts of a group of hollow cup joints that need to be tested. Before that, the support plate 15 at the other end of the pull rope 13 is inserted into the slot 21 in the pressure block 20 so that the through hole 16 it carries is aligned with the card slot 24 in the pressure block 20. The pressure block 20 used to apply weight, the electric telescopic rod 22 inside it inserts the card block 23 into the card slot 24, thereby fixing itself to the other end of the pull rope 13, and the hollow cup joint itself provides power. The pressure block 20 is lifted by the cooperation of the pull rope 13 and the fixed pulley 12. Since the pressure block 20 itself can be replaced and the specifications are known, the test result is obtained by the pulling performance of the hollow cup joint on the pressure block 20.

[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A hollow cup joint testing device, comprising a support (1), a test table (2) being connected to one side of the top of the support (1), characterized in that: The support (1) is located below the test table (2) and is rotatably connected to a threaded shaft (3); a partition (5) is connected to the center of the threaded shaft (3); the threaded shaft (3) is located on both sides of the partition (5) and is arranged in opposite directions with external thread structures; the threaded shaft (3) is located on both sides of the partition (5) and is connected to a clamping frame (6) with an internal thread structure at the bottom; and the top of the clamping frame (6) is connected to an arm groove (7); The top of the support (1) is connected upwardly with a bracket (10) at one end away from the test table (2), the bracket (10) is connected with a support shaft (11), the support shaft (11) is rotatably connected with a fixed pulley (12), the fixed pulley (12) is connected with a pull rope (13), the bottom end of the pull rope is connected with a support plate (15), the support plate (15) is connected with a plurality of through holes (16), and the support (1) is connected with a base (13) below the fixed pulley (12). 7), a pressing block (20) is connected to the base (17), a slot (21) matching with the support plate (15) is connected to the pressing block (20), a plurality of slots (24) matching with the through hole (16) are connected to the pressing block (20) on both sides of the slot (21), an electric telescopic rod (22) is connected to the pressing block (20) on one side of the slot (21), and a block (23) matching with the slot (24) is connected to the moving end of the electric telescopic rod (22).

2. A hollow cup joint testing device according to claim 1, characterized in that: The support (1) is located on one side below the test bench (2) and is connected to a driving motor (4) that matches the threaded shaft (3).

3. A hollow cup joint testing device according to claim 1, characterized in that: The test platform (2) is provided with limit slide grooves (9) on both sides thereof, and the bottom ends of the clamping frame (6) are provided with sliders (8) matched with the limit slide grooves (9).

4. A hollow cup joint testing device according to claim 1, characterized in that: The pull rope (13) is connected to one end thereof away from the support plate (15) and is provided with a pull ring (14).

5. The hollow cup joint testing device according to claim 1, characterized in that: The base (17) is connected to a placement groove (19) that matches the pressure block (20), and a plurality of dampers (18) are commonly connected between the base (17) and the support (1).

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