Swing arm testing device

Abstract

The utility model provides a swing arm testing device which is used for testing a swing arm, the swing arm is provided with a rod structure, the rod structure comprises a fixed end, and the testing device comprises a support, a driving assembly and a fixed structure. The driving assembly is fixedly assembled on the support and comprises a power source, a traction piece and a rotating shaft. The traction piece is connected to the power source, and the power source is used for driving the traction piece to rotate along the rotating shaft within a preset angle range; the fixing structure is connected to the support and used for fixedly assembling the fixing end so that the center of the fixing end and the rotating shaft can be located on the same straight line. The traction piece is provided with a plurality of mounting holes, and the end, away from the fixing structure, of the rod structure penetrates through any mounting hole. The traction piece rotates along the rotating shaft and rotates within a preset angle range, and the reciprocating swing action of the swing arm is simulated. The rotation center of the rod structure and the rotation shaft are on the same straight line, and the traction member drives the swing arm to act synchronously, thereby achieving the automatic testing of the service life of the swing arm, and saving time and labor.

Description

Technical Field

[0001] The utility model belongs to the technical field of robotic arm testing, and particularly relates to a swing arm testing device. Background Art

[0002] With the progress of society and the development of technology, more and more new products have entered people's lives and work. The research and development of each new product must undergo professional testing and can only be put on the market and into society after passing qualified safety testing and quality testing. Among them, the life testing and fatigue testing of a specific action of the product being reciprocated are also essential important links in product testing.

[0003] The balance arm is widely used in the fields of medical devices, industrial production, etc. The balance arm includes a rod structure, and the rod structure includes a fixed end. During application, the balance arm swings back and forth within an angle with the fixed end as the rotation center. In actual process, usually the balance arm is manually shaken to test the service life of the balance arm, and the whole process is time-consuming, laborious and inefficient. Summary of the Utility Model

[0004] The technical object of the utility model is to provide a swing arm testing device, aiming at solving the technical problems of time-consuming, laborious and low efficiency in manually testing the service life of the balance arm in the related technology.

[0005] To solve the above technical problems, the utility model is realized as follows. A swing arm testing device is applied to test a swing arm. The swing arm has a rod structure, and the rod structure includes a fixed end. The testing device includes a bracket, a driving component and a fixing structure. The driving component is fixedly assembled on the bracket. The driving component includes a power source, a traction member and a rotating shaft. The traction member is connected to the power source, and the power source is used to drive the traction member to rotate along the rotating shaft within a preset angle range. The fixing structure is connected to the bracket for fixedly assembling the fixed end so that the center of the fixed end and the rotating shaft are on the same straight line. A plurality of mounting holes are formed in the traction member, and one end of the rod structure away from the fixing structure passes through any one of the mounting holes.

[0006] Further, the testing device further includes a transmission component, and the traction member is in transmission connection with the power source through the transmission component.

[0007] Further, the transmission component includes a synchronous belt, and a first synchronous pulley and a second synchronous pulley arranged at both ends of the synchronous belt. The first synchronous pulley is connected to the power source, the traction member is connected to the second synchronous pulley, and the traction member and the second synchronous pulley rotate coaxially.

[0008] Further, the power source includes a motor, and an output shaft of the motor passes through the first synchronous pulley, and the first synchronous pulley is fixedly assembled on the output shaft of the motor.

[0009] Further, the bracket includes a mounting plate and two oppositely arranged side arms, and two sides of the mounting plate are fixedly assembled on the two side arms; the second synchronous pulley and the traction member are arranged on two sides of the mounting plate, and the second synchronous pulley and the traction member are coaxially rotatably connected to the mounting plate; the mounting plate is provided with a first rotation through hole, and the rotating shaft passes through the first rotation through hole.

[0010] Further, the traction member includes a connecting rod arranged parallel to the rod structure and a traction plate arranged perpendicular to the connecting rod, the mounting hole is formed in the traction plate, one end of the connecting rod away from the traction plate is rotatably connected to the mounting plate, and the rotating shaft is fixedly arranged on the connecting rod in the circumferential direction.

[0011] Further, the transmission assembly further includes a rotary joint, the rotary joint is arranged between the connecting rod and the mounting plate, and the rotating shaft is fixedly arranged on the rotary joint in the circumferential direction.

[0012] Further, two of the transmission assemblies are symmetrically arranged on the testing device, and two ends of the traction member are respectively connected to the two transmission assemblies.

[0013] Further, the bracket includes a cover plate and at least four parallel side arms, the cover plate covers the same ends of the four side arms to form an assembly space, the driving assembly is arranged in the assembly space, and the fixing structure is connected to the cover plate.

[0014] Further, the bracket further includes a base arranged opposite to the cover plate and at least four support feet, and the four support feet are arranged on a side of the base away from the cover plate.

[0015] Compared with the related art, the beneficial effect of a swing arm testing device in the present utility model lies in:

[0016] In the present utility model, the testing device includes a driving assembly, and the driving assembly includes a power source and a traction member. The power source provides a driving force for rotation to the traction member, enabling the traction member to rotate along a rotation axis and the traction member to rotate within a preset angle range. Therefore, the testing device can simulate the reciprocating swinging motion of the swing arm during operation. Additionally, the testing device further includes a fixing structure. The fixed end of the rod structure is fixedly assembled to the fixing structure, such that the center of the fixed end is on the same straight line as the rotation axis, that is, the rotation center of the rod structure is on the same straight line as the rotation axis. The other end of the rod structure passes through the mounting hole of the traction member. Therefore, during the process of the power source driving the traction member to rotate, the traction member can drive the rod structure to rotate along the rotation center, and the traction member can drive the swing arm to perform synchronous actions. Thus, the automatic testing of the service life of the swing arm can be achieved through the testing device, which saves time and effort and can improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is the overall structural schematic diagram of the swing arm testing device in the embodiment of the present utility model;

[0019] Figure 2 is the exploded view of the swing arm testing device in the embodiment of the present utility model.

[0020] In the drawings, each reference numeral represents: 1, rod structure; 11, fixed end; 2, bracket; 21, mounting plate; 22, side arm; 23, cover plate; 3, motor; 4, traction member; 41, connecting rod; 42, traction plate; 5, fixing structure; 6, transmission assembly; 61, first synchronous pulley; 62, second synchronous pulley; 63, synchronous belt; 64, rotary joint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0024] Please refer to Figure 1-2 , an embodiment of the present utility model provides a swing arm testing device, which is applied to test a swing arm. The swing arm has a rod structure 1, and the rod structure 1 includes a fixed end 11. The testing device includes a bracket 2, a driving component, and a fixing structure 5; the driving component is fixedly assembled on the bracket 2, and the driving component includes a power source, a traction member 4, and a rotating shaft; the traction member 4 is connected to the power source, and the power source is used to drive the traction member 4 to rotate along the rotating shaft within a preset angle range; the fixing structure 5 is connected to the bracket 2 to fixedly assemble the fixed end 11 so that the center of the fixed end 11 is on the same straight line as the rotating shaft; a plurality of mounting holes are formed in the traction member 4, and one end of the rod structure 1 away from the fixing structure 5 passes through any one of the mounting holes.

[0025] In the embodiment of the present utility model, the testing device includes a driving component, and the driving component includes a power source and a traction member 4. The power source provides a driving force for the traction member 4 to rotate, so that the traction member 4 can rotate along the rotating shaft, and the traction member 4 rotates within a preset angle range. Therefore, the testing device can simulate the reciprocating swinging action of the swing arm during operation. In addition, the testing device further includes a fixing structure 5, and the fixed end 11 of the rod structure 1 is fixedly assembled on the fixing structure 5, so that the center of the fixed end 11 is on the same straight line as the rotating shaft, that is, the rotation center of the rod structure 1 is on the same straight line as the rotating shaft, and the other end of the rod structure 1 passes through the mounting hole of the traction member 4. Therefore, during the process of the power source driving the traction member 4 to rotate, the traction member 4 can drive the rod structure 1 to rotate along the rotation center, and the traction member 4 can drive the swing arm to perform synchronous actions, so that the automatic testing of the service life of the swing arm can be realized through the testing device, which saves time and effort and can improve efficiency.

[0026] It should be noted that the preset angle is determined according to the amplitude of the swing of the swing arm during the actual working process, and the rotation speed of the driving member 4 driving the swing arm to rotate, etc., is also determined according to the swing speed of the swing arm during the actual working process. According to different swing arms, the preset angle and rotation speed are also different. It can be achieved by controlling the action of the power source.

[0027] It can be understood that the test device of the embodiment of the present invention can be applicable to the test tasks of the swing arms of various types of products. The specific shape design and size of the fixing structure 5 for the fixed end 11 for assembling the swing arm, and the specific shape design and size of the mounting hole for the connecting rod 41 structure 1, etc., can all be determined according to the actual shape and size of the rod structure 1 to adapt to the different test requirements of the swing arms of different products, and has strong practicability.

[0028] Furthermore, according to the different connection methods between the driving member 4 and the power source, the power source can directly or indirectly provide the driving force required for the rotation of the driving member 4.

[0029] In some embodiments, the rotating shaft of the driving member 4 is directly connected to the power source, and the power source can directly provide the driving force for the rotation of the driving member 4.

[0030] In some embodiments, the test device further includes a transmission assembly 6. The driving member 4 is in transmission connection with the power source through the transmission assembly 6. The transmission assembly 6 is connected to the power source, and the rotating shaft of the driving member 4 is connected to the transmission assembly 6, so as to achieve transmission connection. The power source indirectly provides the driving force required for the rotation of the driving member 4 through the transmission assembly 6.

[0031] Furthermore, in some embodiments, the transmission assembly 6 includes a synchronous belt 63, and a first synchronous pulley 61 and a second synchronous pulley 62 provided at both ends of the synchronous belt 63. The first synchronous pulley 61 is connected to the power source, the driving member 4 is connected to the second synchronous pulley 62, and the driving member 4 and the second synchronous pulley 62 rotate coaxially.

[0032] Specifically, the power source provides power for the first synchronous pulley 61. The first synchronous pulley 61 rotates, which can drive the synchronous belt 63 to move. And the synchronous belt 63 can drive the second synchronous pulley 62 at the other end to rotate synchronously with the first synchronous pulley 61. And the driving member 4 and the second synchronous pulley 62 rotate coaxially. Therefore, the second synchronous pulley 62 can drive the driving member 4 to rotate. By controlling the action of the power source, the rotation direction and speed of the first synchronous pulley 61 can be controlled, and then the rotation direction and speed of the driving member 4 can be controlled. Therefore, the test device can simulate the reciprocating swing action of the swing arm during work.

[0033] In some embodiments, the transmission assembly 6 may further include at least two meshing gears. The power source is connected to one of the gears, and the rotating shaft of the traction member 4 is connected to the other gear, thereby achieving a transmission connection.

[0034] Further, in some embodiments, the power source includes a motor 3, and the output shaft of the motor 3 passes through the first synchronous pulley 61, and the first synchronous pulley 61 is fixedly assembled on the output shaft of the motor 3. Specifically, the first synchronous pulley 61 is relatively fixed to the output shaft of the motor 3. Therefore, when the motor 3 rotates, the motor 3 can drive the first synchronous pulley 61 to rotate synchronously, and finally the motor 3 provides a driving force for the rotation of the traction member 4.

[0035] In some embodiments, the power source may also be a cylinder. The first synchronous pulley 61 is fixedly assembled on the cylinder, and the cylinder provides a driving force for the first synchronous pulley 61.

[0036] Further, the bracket 2 includes a mounting plate 21 and two relatively arranged side arms 22. Both sides of the mounting plate 21 are fixedly assembled on the two side arms 22; the second synchronous pulley 62 and the traction member 4 are arranged on both sides of the mounting plate 21, and the second synchronous pulley 62 and the traction member 4 are coaxially and rotatably connected to the mounting plate 21; the mounting plate 21 is provided with a first rotation through hole, and the rotating shaft passes through the first rotation through hole.

[0037] Specifically, the mounting plate 21 and the side arms 22 can be connected by connection methods such as screw connection, snap connection, and bonding. The mounting plate 21 is perpendicular to the rotating shaft, and the second synchronous pulley 62 and the traction member 4 are respectively located on both sides of the mounting plate 21. Both the traction member 4 and the second synchronous pulley 62 rotate along the rotating shaft, and the testing device can simulate the reciprocating swinging action of the swing arm during operation. The center of the fixed end 11 of the rod structure 1 of the swing arm is on the same straight line as the rotating shaft, that is, the rotation center of the swing arm is on the same straight line as the rotating shaft. Also, since the mounting hole is opened on the side of the traction member 4 away from the rotating shaft, the other end of the rod structure 1 is connected to the mounting hole of the traction member 4. Therefore, when the traction member 4 rotates along the rotating shaft, the swing arm can perform synchronous movement with the traction member 4 with the fixed end 11 as the rotation center, thereby the service life of the swing arm can be tested.

[0038] Further, the traction member 4 includes a connecting rod 41 arranged parallel to the rod structure 1 and a traction plate 42 arranged perpendicular to the connecting rod 41. The mounting hole is opened on the traction plate 42, and one end of the connecting rod 41 away from the traction plate 42 is rotatably connected to the mounting plate 21, and the rotating shaft is circumferentially fixed to the connecting rod 41.

[0039] Specifically, the traction plate 42 includes a connecting rod 41 and a traction plate 42 fixedly connected. One end of the connecting rod 41 away from the traction plate 42 is connected to the rotating shaft. One end of the connecting rod 41 connected to the rotating shaft is the rotation center. By the rotation of the second synchronous pulley 62, the connecting rod 41 can be rotated along the rotation center, and the connecting rod 41 can drive the traction plate 42 to rotate synchronously. The rotation center of the swing arm is on the same straight line as the rotating shaft. The mounting hole is formed in the traction plate 42, and one end of the swing arm away from the rotation center passes through the mounting hole. Therefore, when the traction plate 42 rotates, the swing arm can rotate synchronously.

[0040] Further, the transmission assembly 6 further includes a rotary joint 64. The rotary joint 64 is disposed between the connecting rod 41 and the mounting plate 21, and the rotating shaft is fixed to the rotary joint 64 in the circumferential direction.

[0041] Specifically, the second synchronous pulley 62, the rotary joint 64, and the connecting rod 41 are all provided with second rotating through holes facing the first rotating through hole, and the rotating shaft is fixedly assembled in the second rotating through hole in the circumferential direction. The second synchronous pulley 62 can drive the rotary joint 64 to rotate, so that the rotary joint 64 can drive the connecting rod 41 to rotate synchronously.

[0042] Further, the testing device is symmetrically provided with two transmission assemblies 6, and both ends of the traction member 4 are respectively connected to the two transmission assemblies 6.

[0043] Specifically, the traction member 4 includes two connecting rods 41 disposed at both ends of the traction plate 42, and the two connecting rods 41 are symmetrically arranged. The testing device is symmetrically provided with two transmission assemblies 6. Each transmission assembly 6 includes a synchronous belt 63, a first synchronous pulley 61, a second synchronous pulley 62, etc. At the same time, two rotary joints 64 and two mounting plates 21 are symmetrically arranged. The output shafts on the left and right sides of the motor 3 are respectively connected to the first synchronous pulleys 61 on both sides, so that the two first synchronous pulleys 61 rotate synchronously. In addition, the centers of the second synchronous pulleys 62, the connecting rods 41, and the rotary joints 64 on the left and right sides are on the same straight line as the rotating shaft. Through the connecting rods 41 on both sides, the traction plate 42 can be driven to rotate better, and thus the rod structure 1 of the swing arm can be driven to rotate better.

[0044] Further, the bracket 2 includes a cover plate 23 and at least four parallel side arms 22. The cover plate 23 covers the same end of the four side arms 22 to form an assembly space. The driving assembly is disposed in the assembly space, and the fixing structure 5 is connected to the cover plate 23.

[0045] Specifically, a cover plate 23 is provided at the top of the bracket 2, and side arms 22 are provided on each of the four sides of the cover plate 23. The fixing structure 5 is close to one side of the cover plate 23 (the back side as shown in the figure), so that the rotation center of the rod structure 1 is close to the back side of the cover plate 23, and the main body and the other end of the rod structure 1 can be received in the assembly space. Side arms 22 can also be provided on the back side of the cover plate 23, which neither hinders the reciprocating swing of the swing arm and the connecting rod 41, and at the same time can improve the structural stability of the device. Side arms 22 are symmetrically arranged on the left and right sides of the cover plate 23. One of the connecting rods 41 of the transmission assembly 6 and the traction member 4 is fixedly assembled on the two left side arms 22, and the other connecting rod 41 of the other transmission assembly 6 and the traction member 4 is fixedly assembled on the two right side arms 22.

[0046] Furthermore, the bracket 2 further includes a base disposed opposite to the cover plate 23, and at least four feet, and the four feet are disposed on a side of the base away from the cover plate 23. Specifically, the bottom of the bracket 2 is the base, and feet are further provided on the bottom surface of the base, so that the overall bracket 2 can be placed flat on a platform such as the ground, and the life test of the swing arm can be better carried out.

[0047] In the above embodiments, the descriptions of the various embodiments have their own emphases. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0048] The above is the description of the technical solution provided by the present invention. For those skilled in the art, according to the idea of the embodiments of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A swing arm testing device, used for testing a swing arm, wherein the swing arm has a rod structure, the rod structure includes a fixed end, and is characterized in that: The testing device comprises a bracket, a driving assembly and a fixing structure; The driving assembly is fixedly mounted on the bracket, and the driving assembly includes a power source, a traction member, and a rotating shaft; the traction member is connected to the power source, and the power source is used to drive the traction member to rotate along the rotating shaft within a preset angle range; The fixing structure is connected to the bracket to fix and assemble the fixing end so that the center of the fixing end is in the same straight line with the rotation axis; The traction member is provided with a plurality of mounting holes, and one end of the rod structure away from the fixing structure is passed through any of the mounting holes.

2. The swing arm testing device according to claim 1, characterized in that: The testing device further comprises a transmission assembly, and the traction member is transmission-connected to the power source via the transmission assembly.

3. The swing arm testing device according to claim 2, characterized in that: The transmission assembly includes a synchronous belt, and a first synchronous wheel and a second synchronous wheel arranged at both ends of the synchronous belt, the first synchronous wheel is connected to the power source, the traction member is connected to the second synchronous wheel, and the traction member and the second synchronous wheel rotate coaxially.

4. The swing arm testing device according to claim 3, characterized in that: The power source comprises a motor, an output shaft of the motor is passed through the first synchronous wheel, and the first synchronous wheel is fixedly assembled on the output shaft of the motor.

5. The swing arm testing device according to claim 3, characterized in that: The bracket includes a mounting plate and two oppositely arranged side arms, and the two sides of the mounting plate are fixedly assembled on the two side arms; the second synchronous wheel and the traction member are arranged on both sides of the mounting plate, and the second synchronous wheel and the traction member are coaxially rotatably connected to the mounting plate; the mounting plate is provided with a first rotating through hole, and the rotating shaft is passed through the first rotating through hole.

6. The swing arm testing device according to claim 5, characterized in that: The traction member includes a connecting rod arranged parallel to the rod structure, and a traction plate arranged perpendicular to the connecting rod, the mounting hole is opened in the traction plate, one end of the connecting rod away from the traction plate is rotatably connected to the mounting plate, and the rotating shaft is circumferentially fixed to the connecting rod.

7. The swing arm testing device according to claim 6, characterized in that: The transmission assembly further comprises a rotary joint, wherein the rotary joint is arranged between the connecting rod and the mounting plate, and the rotating shaft is circumferentially fixed to the rotary joint.

8. The swing arm testing device according to claim 2, characterized in that: The testing device is symmetrically provided with two transmission assemblies, and two ends of the traction member are respectively connected to the two transmission assemblies.

9. The swing arm testing device according to claim 1, characterized in that: The bracket includes a cover plate and at least four parallel side arms. The cover plate covers the same end of the four side arms to form an assembly space. The drive assembly is arranged in the assembly space, and the fixing structure is connected to the cover plate.

10. The swing arm testing device according to claim 9, characterized in that: The bracket also includes a base arranged opposite to the cover plate, and at least four supporting legs, wherein the four supporting legs are arranged on a side of the base away from the cover plate.

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