Small recreation facility swivel chair fatigue performance test method based on industrial robot

Abstract

The invention discloses a small recreation facility swivel chair fatigue performance test method based on an industrial robot, and the method comprises the following steps: S1, placing a swivel chair on a base, enabling the lower end of the swivel chair to be fixed with the base, S2, enabling a robot to drive a driving arm above the swivel chair, enabling the axis of the driving arm to be aligned with the axis of the swivel chair, and further fixing the driving arm with the swivel chair, s3, connecting a compression device with the swivel chair, and providing compression force to the surface of the swivel chair through the compression device, and S4, adjusting the output power of the driving arm to adjust the rotating speed of the swivel chair, and adjusting the magnitude and direction of the compression force of the compression device to the swivel chair to test the fatigue life of the swivel chair under different rotating speeds and different compression forces of the swivel chair. The driving mode that the driving arm is driven by the robot can provide a large movement range for the driving arm, so that multi-direction and multi-position compression is realized in cooperation with the arrangement of the compression device, and the simulation authenticity is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of testing instruments, and more particularly to a fatigue performance testing method of a swivel chair of a small amusement facility based on an industrial robot. Background Art

[0002] Before designing and producing a swivel chair, an important test that needs to be carried out is the fatigue life test. The main purpose of this test is to test the fatigue life of the swivel chair under no-load / load rotation to ensure that it can meet safety standards.

[0003] When the swivel chair is in an unloaded state, the swivel chair is usually fixed directly on the base and driven by a motor to rotate stably for a long time to complete the fatigue test. When the swivel chair needs load testing, weights are usually placed directly on the swivel chair to complete the load operation. When the rising operation is used, it is necessary to simulate the situation of the human body on the swivel chair, which leads to the general high weight of the weight, which makes it inconvenient to carry and fix it. Especially during the rotation of the swivel chair, it is easy to deviate or even fall off. At the same time, due to the irregularity of the chair components of the swivel chair themselves, the load method realized by this type of weight often has position deviations, resulting in poor simulation effect, and thus needs to be improved. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fatigue performance test method for a swivel chair of a small amusement facility based on an industrial robot, which can provide a stable load, is easy to operate, and has an accurate force application point position.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The fatigue performance test method of a small amusement facility swivel chair based on an industrial robot includes the following steps:

[0007] S1. Place the swivel chair on the base so that the lower end of the swivel chair is fixed to the base;

[0008] S2, the robot drives the driving arm above the swivel chair so that the axis of the driving arm is aligned with the axis of the swivel chair, and further fixes the driving arm and the swivel chair;

[0009] S3, connecting the compression device to the swivel chair, and applying compression force to the surface of the swivel chair through the compression device;

[0010] S4. Adjust the output power of the driving arm to adjust the rotation speed of the swivel chair, and adjust the magnitude and direction of the pressure of the pressure device on the swivel chair to test the fatigue life of the swivel chair under different rotation speeds and different pressures.

[0011] As a further improvement of the present invention, a motor is provided in the driving arm, an L-shaped connecting frame is provided at the output end of the motor, the two ends of the connecting frame are respectively connected to the motor and the swivel chair, and a connecting arm extends outward from one side of the driving arm and is connected to the robot through the connecting arm.

[0012] As a further improvement of the present invention, a follower seat is provided at the lower end of the driving arm, and the follower seat is connected to the output end of the motor and rotates with the motor. A plurality of mounting grooves are circumferentially arranged on the follower seat, and the pressing device comprises a mounting rod and a pressing rod, one end of the mounting rod is connected and fixed to the mounting groove, and the mounting rod is slidably connected with a mounting block along the length direction, and the pressing rod comprises a driving rod and an upper connecting rod and a lower connecting rod located at both ends of the driving rod, and the two ends of the driving rod are respectively connected to the upper connecting rod and the lower connecting rod, and one end of the upper connecting rod away from the driving rod is movably connected to the mounting block, and the end of the lower connecting rod away from the driving rod is used to resist the swivel chair, and the driving rod is used to provide a pressing force to the upper connecting rod and the lower connecting rod along the axial direction.

[0013] As a further improvement of the present invention, one end of the driving rod is provided with a mounting hole and is threadedly connected to the upper connecting rod, the end of the upper connecting rod away from the driving rod is provided with a spherical connecting piece and is hinged to the spherical surface of the mounting block through the spherical connecting piece, the other end of the driving rod is provided with a telescopic hole and is slidably connected to one end of the lower connecting rod, a spring is provided in the telescopic hole, both ends of the spring are respectively connected to the driving rod and the lower connecting rod, and the spring is used to drive the lower connecting rod to move in a direction away from the driving rod.

[0014] As a further improvement of the present invention, the lower connecting rod is provided with a storage hole corresponding to the spring, the telescopic hole and the bottom of the storage hole are both provided with an installation cavity and are rotatably connected with a connecting piece through the installation cavity, and the two ends of the spring are respectively connected to the two connecting pieces.

[0015] As a further improvement of the present invention, the mounting block is provided with a hinge cavity corresponding to the spherical connector, the outer wall of the spherical connector is provided with a positioning block, and the inner wall of the hinge cavity is provided with positioning grooves. The positioning block is used to engage the positioning groove to limit the rotation of the upper connecting rod relative to the mounting block, and a movable gap is formed between the spherical connector and the hinge cavity, and the movable gap is used to allow the positioning block and the positioning groove to be separated from each other.

[0016] As a further improvement of the present invention, a first tooth surface is provided at the bottom of the mounting rod along the length direction, the mounting block includes a fixed body and sliding bodies located on both sides of the fixed body, the hinge cavity is located on the lower side of the fixed body, first guide rails are provided on both sides of the mounting rod, the fixed body is provided with a first guide groove corresponding to the first guide rail and is slidably connected to the first guide rail, a clamping groove is provided on one side of the two sliding bodies close to each other and respectively clamps the two ends of the mounting block, a longitudinally arranged second guide rail is provided in the clamping groove, second guide grooves are provided on both sides of the fixed body corresponding to the second guide rail and are slidably connected to the second guide rail, a second tooth surface is provided on the upper end surface of the fixed body, and the fixed body moves up and down along the second guide rail so that the second tooth surface engages / separates with the first tooth surface.

[0017] As a further improvement of the present invention, the motor output end forms a mounting surface, the mounting surface is provided with a first connecting hole aligned with the axis of the motor output end, the mounting surface is provided with a plurality of second connecting holes circumferentially corresponding to the first connecting hole, the connecting frame is provided with third connecting holes along the length direction corresponding to the first connecting hole and the second connecting hole, and the third connecting hole is respectively connected to the first connecting hole and the second connecting hole by bolts.

[0018] Beneficial effects of the present invention:

[0019] 1. The driving method of driving the driving arm by the robot can provide a larger range of motion for the driving arm, thereby cooperating with the setting of the pressing device to achieve multi-directional and multi-position pressing, thereby greatly improving the simulation authenticity;

[0020] 2. By adjusting the direction of the compression device and the size of the compression force, simulations under different usage conditions can be achieved, thereby expanding the scope of use and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a flow chart of the method of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation of the driving arm of the present invention;

[0023] Figure 3 It is a cross-sectional schematic diagram of the installation of the compression device of the present invention;

[0024] Figure 4 It is a schematic diagram of the installation surface of the present invention;

[0025] Figure 5 This is a schematic diagram of the installation of the mounting frame of the present invention.

[0026] 1. Driving arm; 2. Motor; 3. Connecting frame; 4. Connecting arm; 5. Follower seat; 6. Mounting groove; 7. Mounting rod; 8. Compression rod; 9. Mounting block; 10. Driving rod; 11. Upper connecting rod; 12. Lower connecting rod; 13. Mounting hole; 14. Spherical connector; 15. Telescopic hole; 16. Spring; 17. Storage hole; 18. Mounting cavity; 19. Articulated cavity; 20. Positioning block; 21. Positioning groove; 22. Movable gap; 23. First tooth surface; 24. Fixed body; 25. Sliding body; 26. First guide rail; 27. First guide groove; 28. Slot; 29. ​​Second guide rail; 30. Second guide groove; 31. Second tooth surface; 32. Mounting surface; 33. First connecting hole; 34. Second connecting hole; 35. Third connecting hole. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same components are represented by the same reference numerals.

[0028] like Figure 1 As shown, a fatigue performance test method for a swivel chair of a small amusement facility based on an industrial robot includes the following steps: S1, placing the swivel chair on a base so that the lower end of the swivel chair is fixed to the base. Specifically, a positioning hole can be set on the swivel chair, and the positioning hole and the base are connected by bolts to complete the fixation.

[0029] S2. The robot drives the driving arm 1 above the swivel chair. The robot is any three-dimensional arm capable of multi-axis movement in the prior art, which will not be described in detail here. The axis of the driving arm 1 is aligned with the axis of the swivel chair, and the driving arm 1 is further fixed to the swivel chair.

[0030] S3. Connect the compression device to the swivel chair, and use the compression device to provide compression force to the surface of the swivel chair.

[0031] S4. Adjust the output power of the driving arm 1 to adjust the rotation speed of the swivel chair, and adjust the magnitude and direction of the pressure of the pressure device on the swivel chair to test the fatigue life of the swivel chair under different rotation speeds and different pressures.

[0032] When in use, the size and direction of the compression force of the compression device are adjusted according to the specific test needs. At the same time, the motor 2 is used to drive the connecting frame 3 to rotate to complete the drive of the swivel chair. At this time, the compression device maintains compression on the predetermined position when the swivel chair rotates to complete the simulation test.

[0033] like Figure 2-5 As shown, a motor 2 is provided in the driving arm 1, and an L-shaped connecting frame 3 is provided at the output end of the motor 2. The two ends of the connecting frame 3 are respectively connected to the motor 2 and the swivel chair. A connecting arm 4 extends outward from one side of the driving arm 1 and is connected to the robot through the connecting arm 4.

[0034] The L-shaped connecting frame 3 can facilitate the connection between the motor 2 and the swivel chair, that is, the motor 2 can be directly connected and fixed to the swivel chair part through the connecting frame 3, which can be specifically achieved through binding, bolts, etc.

[0035] At the same time, the arrangement of the connecting arm 4 can provide a larger range of motion for the compression device, thereby increasing the simulation range of the compression device.

[0036] Preferably, a follower seat 5 is provided at the lower end of the driving arm 1, and the follower seat 5 is connected to the output end of the motor 2 and rotates with the motor 2. A plurality of mounting grooves 6 are circumferentially provided on the follower seat 5, and the pressing device includes a mounting rod 7 and a pressing rod 8. One end of the mounting rod 7 is connected and fixed to the mounting groove 6, and the mounting rod 7 is slidably connected with a mounting block 9 along the length direction. The pressing rod 8 includes a driving rod 10 and an upper connecting rod 11 and a lower connecting rod 12 located at both ends of the driving rod 10, and both ends of the driving rod 10 are respectively connected to the upper connecting rod 11 and the lower connecting rod 12, and one end of the upper connecting rod 11 away from the driving rod 10 is movably connected to the mounting block 9, and one end of the lower connecting rod 12 away from the driving rod 10 is used to resist the swivel chair, and the driving rod 10 is used to provide a pressing force to the upper connecting rod 11 and the lower connecting rod 12 along the axial direction.

[0037] The end of the lower connecting rod 11 away from the driving rod 10 may be provided with a soft contact head. In another embodiment, a connecting plate may also be hingedly provided to complete the resistance force on the swivel chair position.

[0038] More specifically, the mounting rod 7 and the mounting slot 6 are plugged into each other, and L-shaped fixing plates are symmetrically provided at the connection. Both ends of the fixing plates are connected to the mounting rod 7 and the follower seat 5 by bolts to complete the mutual fixation of the mounting rod 7 and the mounting slot 6.

[0039] When in use, the position, size and direction of the force applied by the simulated human body to the swivel chair during the rotation are calculated according to the test requirements, and the mounting block 9 is further moved to make the lower connecting rod 12 correspond to the force position. At the same time, the angle of the compression rod 8 is made consistent with the force direction, and the size of the force is further adjusted by the driving rod 10 to achieve the simulation requirements. When the swivel chair rotates, the follow-up seat 5 follows to maintain stable compression on the swivel chair during its rotation.

[0040] At the same time, multiple mounting rods 7 can be connected according to different simulation requirements to meet simulation requirements at multiple positions.

[0041] Preferably, a mounting hole 13 is provided at one end of the driving rod 10 and is threadedly connected to the upper connecting rod 11. A spherical connector 14 is provided at one end of the upper connecting rod 11 away from the driving rod 10 and is spherically hinged to the mounting block 9 through the spherical connector 14. A telescopic hole 15 is provided at the other end of the driving rod 10 and is slidably connected to one end of the lower connecting rod 12. A spring 16 is provided in the telescopic hole 15. Both ends of the spring 16 are respectively connected to the driving rod 10 and the lower connecting rod 12. The spring 16 is used to drive the lower connecting rod 12 to move away from the driving rod 10.

[0042] The setting of the spherical connector 14 can provide the compression rod 8 with a larger range of motion to further expand the simulation range. At the same time, the driving method of the spring 16 can make the force more stable. At the same time, the force application method of the spring 16 can also facilitate the adjustment of the force size. More specifically, a scale can be set on the outer wall of the lower connecting rod 12 to facilitate observation by the operator.

[0043] Preferably, the lower connecting rod 12 is provided with a storage hole 17 corresponding to the spring 16, and the bottom of the telescopic hole 15 and the storage hole 17 are both provided with an installation cavity 18 and are rotatably connected with a connecting piece through the installation cavity 18, and the two ends of the spring 16 are respectively connected to the two connecting pieces.

[0044] The connection piece can prevent the spring 16 from twisting when the driving rod 10 rotates, thereby ensuring the stability of the spring 16.

[0045] Preferably, the mounting block 9 is provided with an articulation cavity 19 corresponding to the spherical connector 14, the outer wall of the spherical connector 14 is provided with a positioning block 20, and the inner wall of the articulation cavity 19 is provided with positioning grooves 21. The positioning block 20 is used to engage the positioning grooves 21 to limit the rotation of the upper connecting rod 11 relative to the mounting block 9, and a movable gap 22 is formed between the spherical connector 14 and the articulation cavity 19, and the movable gap 22 is used for separating the positioning block 20 and the positioning grooves 21 from each other.

[0046] In the initial state, the upper connecting rod 11 is in a hanging state. At this time, the positioning block 20 and the positioning groove 21 are separated from each other by the movable gap 22. When the force is applied, after the driving rod 10 is twisted, the upper connecting rod 11 will be driven to extend outward relative to the mounting hole 13, so that the upper connecting rod 11 moves upward, and further the positioning block 20 and the positioning groove 21 are engaged with each other to complete the positioning of the upper connecting rod 11, that is, to achieve the fixation of the angle of the compression rod 8.

[0047] Preferably, a first tooth surface 23 is provided at the bottom of the mounting rod 7 along the length direction, the mounting block 9 includes a fixed body 24 and sliding bodies 25 located on both sides of the fixed body 24, the hinge cavity 19 is located on the lower side of the fixed body 24, first guide rails 26 are provided on both sides of the mounting rod 7, the fixed body 24 is provided with a first guide groove 27 corresponding to the first guide rail 26 and is slidably connected to the first guide rail 26, the two sliding bodies 25 are provided with a clamping groove 28 on the sides close to each other and are respectively clamped at both ends of the mounting block 9, a longitudinally arranged second guide rail 29 is provided in the clamping groove 28, second guide grooves 30 are provided on both sides of the fixed body 24 corresponding to the second guide rail 29 and are slidably connected to the second guide rail 29, a second tooth surface 31 is provided on the upper end surface of the mounting block 9, and the mounting block 9 moves up and down along the second guide rail 29 so that the second tooth surface 31 and the first tooth surface 23 are meshed / separated with each other.

[0048] In the initial state, the fixed body 24 moves downward under the traction of the compression rod 8. At this time, the second tooth surface 31 is separated from the first tooth surface 23, so that the mounting block 9 can slide relative to the mounting rod 7. In the force application state, the compression rod 8 applies force to the fixed body 24, thereby driving the fixed body 24 to move along the second guide rail 29, so that the first tooth surface 23 and the second tooth surface 31 are engaged with each other to complete the fixation of the mounting block 9.

[0049] By disposing the positioning block 20 , the positioning groove 21 , the first tooth surface 23 and the second tooth surface 31 , the force application direction of the pressing rod 8 can be automatically locked, thereby facilitating use.

[0050] Preferably, a mounting surface 32 is formed at the output end of the motor 2, and the mounting surface 32 is provided with a first connecting hole 33 aligned with the axis of the output end of the motor 2, and a plurality of second connecting holes 34 are circumferentially provided on the mounting surface 32 corresponding to the first connecting hole 33, and the connecting frame 3 is provided with third connecting holes 35 along the length direction corresponding to the first connecting hole 33 and the second connecting hole 34, respectively, and the third connecting hole 35 is connected to the first connecting hole 33 and the second connecting hole 34 respectively by bolts.

[0051] When in use, the third connecting hole 35 is adjusted to connect with the first connecting hole 33 and the second connecting hole 34 according to the needs of use, so as to adjust the position of the connecting frame 3. On the one hand, it is convenient to connect with the swivel chair, and at the same time, the position of the connecting frame 3 can be adjusted to avoid interference with the position of the compression rod 8, thereby facilitating use.

[0052] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. Fatigue performance test method of swivel chair of small amusement facilities based on industrial robots, Features: The following steps are included: S1. Place the swivel chair on the base so that the lower end of the swivel chair is fixed to the base; S2, the robot drives the driving arm (1) above the swivel chair so that the axis of the driving arm (1) is aligned with the axis of the swivel chair, and further fixes the driving arm (1) and the swivel chair; S3, connecting the compression device to the swivel chair, and applying compression force to the surface of the swivel chair through the compression device; S4. Adjust the output power of the driving arm (1) to adjust the rotation speed of the swivel chair, and adjust the magnitude and direction of the pressure of the pressure device on the swivel chair to test the fatigue life of the swivel chair under different rotation speeds and different pressures.

2. According to the fatigue performance test method of the small amusement facility swivel chair based on the industrial robot in claim 1, Features: The driving arm (1) is provided with a motor (2), an L-shaped connecting frame (3) is provided at the output end of the motor (2), the two ends of the connecting frame (3) are respectively connected to the motor (2) and the swivel chair, and a connecting arm (4) is extended outward from one side of the driving arm (1) and is connected to the robot via the connecting arm (4).

3. The fatigue performance test method of a small amusement facility swivel chair based on an industrial robot according to claim 2, Features: A follower seat (5) is provided at the lower end of the driving arm (1), the follower seat (5) is connected to the output end of the motor (2) and rotates together with the motor (2), a plurality of mounting grooves (6) are provided circumferentially on the follower seat (5), the pressing device comprises a mounting rod (7) and a pressing rod (8), one end of the mounting rod (7) is connected and fixed to the mounting groove (6), the mounting rod (7) is slidably connected to a mounting block (9) along the length direction, the pressing rod (8) comprises a driving rod (10) and a pressing rod (9) located at the driving rod (10). An upper connecting rod (11) and a lower connecting rod (12) are provided at both ends of the moving rod (10); the two ends of the driving rod (10) are respectively connected to the upper connecting rod (11) and the lower connecting rod (12); one end of the upper connecting rod (11) away from the driving rod (10) is movably connected to the mounting block (9); one end of the lower connecting rod (12) away from the driving rod (10) is used to abut against the swivel chair; the driving rod (10) is used to provide a compressive force to the upper connecting rod (11) and the lower connecting rod (12) along the axial direction.

4. The fatigue performance test method of a small amusement facility swivel chair based on an industrial robot according to claim 3, Features: One end of the driving rod (10) is provided with a mounting hole (13) and is threadedly connected to the upper connecting rod (11); one end of the upper connecting rod (11) away from the driving rod (10) is provided with a spherical connector (14) and is spherically hinged to the mounting block (9) through the spherical connector (14); the other end of the driving rod (10) is provided with a telescopic hole (15) and is slidably connected to one end of the lower connecting rod (12); a spring (16) is provided in the telescopic hole (15); two ends of the spring (16) are respectively connected to the driving rod (10) and the lower connecting rod (12); the spring (16) is used to drive the lower connecting rod (12) to move in a direction away from the driving rod (10).

5. The fatigue performance test method of a small amusement facility swivel chair based on an industrial robot according to claim 4, Features: The lower connecting rod (12) is provided with a receiving hole (17) corresponding to the spring (16), the telescopic hole (15) and the receiving hole (17) are both provided with a mounting cavity (18) at the bottom and are rotatably connected to a connecting piece through the mounting cavity (18), and the two ends of the spring (16) are respectively connected to the two connecting pieces.

6. The fatigue performance test method of a small amusement facility swivel chair based on an industrial robot according to claim 4, Features: The mounting block (9) is provided with an articulation cavity (19) corresponding to the spherical connection piece (14); the outer wall of the spherical connection piece (14) is provided with a positioning block (20); the inner wall of the articulation cavity (19) is provided with positioning grooves (21); the positioning block (20) is used to engage with the positioning grooves (21) to limit the rotation of the upper connecting rod (11) relative to the mounting block (9); a movable gap (22) is formed between the spherical connection piece (14) and the articulation cavity (19); the movable gap (22) is used to allow the positioning block (20) and the positioning groove (21) to be separated from each other.

7. The fatigue performance test method of a small amusement facility swivel chair based on an industrial robot according to claim 6, Features: The bottom of the mounting rod (7) is provided with a first tooth surface (23) along the length direction; the mounting block (9) comprises a fixed body (24) and sliding bodies (25) located on both sides of the fixed body (24); the hinge cavity (19) is located on the lower side of the fixed body (24); first guide rails (26) are provided on both sides of the mounting rod (7); the fixed body (24) is provided with a first guide groove (27) corresponding to the first guide rail (26) and is slidably connected to the first guide rail (26); and the two sliding bodies (25) are close to each other. The surfaces are provided with a card slot (28) and are respectively connected to the two ends of the mounting block (9); a second guide rail (29) is longitudinally arranged in the card slot (28); second guide slots (30) are provided on both sides of the fixed body (24) corresponding to the second guide rail (29) and are slidably connected to the second guide rail (29); a second tooth surface (31) is provided on the upper end surface of the fixed body (24); the fixed body (24) moves up and down along the second guide rail (29) so that the second tooth surface (31) and the first tooth surface (23) are meshed / separated with each other.

8. The fatigue performance test method of a small amusement facility swivel chair based on an industrial robot according to claim 2, Features: The output end of the motor (2) forms a mounting surface (32), the mounting surface (32) is provided with a first connection hole (33) aligned with the axis of the output end of the motor (2), the mounting surface (32) is circumferentially provided with a plurality of second connection holes (34) corresponding to the first connection hole (33), the connecting frame (3) is provided with third connection holes (35) along the length direction corresponding to the first connection hole (33) and the second connection hole (34), and the third connection hole (35) is respectively connected to the first connection hole (33) and the second connection hole (34) by bolts.

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