Harmonic speed reducer rigidity test platform

Abstract

The utility model discloses a rigidity test platform for a harmonic speed reducer, which relates to the technical field of speed reducer testing and comprises a platform body. A measuring plate is arranged on the left side of the platform body, fixing plates are symmetrically arranged on the right side of the platform body, a mounting plate is arranged between the fixing plates, a data analyzer is arranged between the measuring plate and the mounting plate, a round hole is formed in the middle of the mounting plate, and an inner gear is arranged in the round hole; a laser pen is mounted at the output end of the harmonic speed reducer, during measurement, the laser pen is turned on, an external controller starts the laser tracker, the harmonic speed reducer starts to rotate, the harmonic speed reducer drives the laser pen to rotate while rotating, and then the projection position of the laser pen on the measuring plate is changed; the laser tracker records the position of projection change and transmits the position to the data analyzer, the rigidity performance of the harmonic speed reducer is measured through the cooperation of the laser pen and the laser tracker, the overall structure is simple, and the occupied area is small.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reducer testing, in particular to a harmonic speed reducer rigidity testing platform. Background Art

[0002] With the continuous development and popularization of high-precision motion control technology, high-precision harmonic reducers are needed in energy, communications, machine tools, instruments, robots, automobiles, shipbuilding, textiles, metallurgy, conventional weapons, precision optical equipment, printing mechanisms, medical equipment, space transmission devices, and mechanisms for operating high-temperature and high-pressure pipelines and working under conditions of atomic radiation or other harmful media. The main performance parameters of harmonic reducers include rigidity clearance.

[0003] The existing harmonic reducer test platform is capable of testing the rigidity performance of the harmonic reducer. However, the existing harmonic reducer rigidity test platform has a complex structure, occupies a large area, requires a large number of sensors and measuring equipment, is difficult to operate, and has a high testing cost, which cannot meet people's production needs. Therefore, we propose a harmonic reducer rigidity test platform. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a harmonic reducer rigidity testing platform, which not only has a simple overall structure and a small footprint, but also is easy to operate and has a low testing cost, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a harmonic reducer rigidity test platform, comprising a platform body;

[0006] A measuring plate is provided on the left side of the platform body, and a fixing plate is symmetrically provided on the right side of the platform body. A mounting plate is provided between the fixing plates, and a data analyzer is provided between the measuring plate and the mounting plate. A circular hole is provided in the middle of the mounting plate, and an internal gear is provided in the circular hole, and a harmonic reducer is provided inside the internal gear.

[0007] A laser pen is installed on the output end of the harmonic reducer, the lower end of the measuring plate is fixedly connected to the upper end of the platform body, and a laser tracker is fixedly installed on a fixed plate on one side of the platform body. The laser pen is arranged in a horizontal direction, and the laser pen is facing the measuring plate and is separated from the measuring plate by a preset distance. The input end of the laser tracker is electrically connected to the output end of the external controller. When measuring, the laser pen is turned on, and the external controller starts the laser tracker, and the harmonic reducer starts to rotate. The harmonic reducer also starts to rotate with the laser pen, and then the projection position of the laser pen on the measuring plate changes. The laser tracker records the changed position of the projection and transmits it to the data analyzer. The rigid performance of the harmonic reducer is measured by the cooperation of the laser pen and the laser tracker. The overall structure is simple and occupies a small area.

[0008] When measuring, first put the harmonic reducer into the gear ring, and the external controller starts the hydraulic push rod. The hydraulic push rod starts to move with the arc push plate to fix the harmonic reducer, turn on the laser pen, start the laser tracker, change the weight of the weight, and the rotation of the moving plate causes the circular ring to rotate. The rotation of the circular ring causes the gear ring to rotate on the inner gear, which can change the projection position of the laser pen on the measuring plate in the test field. The data analyzer can calculate the position of the laser detected by the laser tracker in the data analyzer to obtain the stiffness of the harmonic reducer and display it on the display screen.

[0009] Furthermore, a gear ring is provided inside the internal gear, the internal gear is meshed with the gear ring, the right end of the gear ring is fixedly connected to the circular ring, movable plates are symmetrically installed at both ends of the circular ring, a hanging column is fixedly installed on the movable plate on one side of the circular ring, and a weight is provided under the hanging column. The rotation of the movable plate causes the circular ring to rotate, and the rotation of the circular ring causes the gear ring to rotate on the internal gear, which can change the projection position of the laser pen on the measuring board in the test field.

[0010] Furthermore, a circular slide groove is provided on the mounting plate, a slider is slidably provided in the circular slide groove, the slider is fixedly connected to the movable plate, a connecting line is fixedly connected to the hanging column, and the lower end of the connecting line is fixedly connected to the weight. By changing the weight of the weight, the projection position of the laser pen on the measuring board in the test field can be further changed, the load weight can be conveniently changed, and the rigid backlash value of the harmonic reducer can be simply and conveniently measured in combination with the projection position of the laser pen on the measuring board. The operation is simple and the testing cost is low.

[0011] Furthermore, a hydraulic push rod is symmetrically provided on the inner side of the gear ring, the outer end of the hydraulic push rod is fixedly connected to the inner end of the gear ring, the output end of the hydraulic push rod is fixedly connected to the arc-shaped push plate, the input end of the hydraulic push rod is electrically connected to the output end of the external controller, the external controller starts the hydraulic push rod, the hydraulic push rod starts to move with the arc-shaped push plate, and the harmonic reducer starts to be fixed. By setting the hydraulic push rod and the arc-shaped push plate, the harmonic reducer can be fixed to limit the rotation of the harmonic reducer.

[0012] Furthermore, an auxiliary support plate is fixedly connected to each of the four corners on both sides of the fixed plate, and the lower end of the auxiliary support plate is fixedly connected to the upper end of the platform body. The auxiliary support plate is used to support the fixed plate to make the fixed support of the fixed plate more stable.

[0013] Furthermore, the lower end of the data analyzer is fixedly connected to the upper end of the platform body, a display screen is fixedly installed on the data analyzer, and the input end of the data analyzer is electrically connected to the output end of the laser tracker. Through the setting of the data analyzer, the position of the laser detected by the laser tracker can be calculated in the data analyzer to obtain the stiffness of the harmonic reducer and display it on the display screen.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the harmonic reducer rigidity test platform has the following advantages:

[0015] 1. The rigidity performance of the harmonic reducer is measured by combining the laser pen and the laser tracker. The overall structure is simple and occupies a small area.

[0016] 2. By changing the weight of the weight, the projection position of the laser pen on the measuring board in the test field can be further changed, which can conveniently change the load weight. In combination with the projection position of the laser pen on the measuring board, the rigid backlash value of the harmonic reducer can be simply and conveniently measured. The operation is simple and the testing cost is low.

[0017] 3. Through the setting of the data analyzer, the position of the laser detected by the laser tracker can be calculated in the data analyzer to obtain the stiffness of the harmonic reducer and displayed on the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model.

[0019] Figure 2 It is a right side schematic diagram of part of the structure of the utility model.

[0020] Figure 3 It is a left side schematic diagram of the structure of the utility model.

[0021] Figure 4 It is a front view schematic diagram of the structure of the utility model.

[0022] In the figure: 1 platform body, 2 fixed plate, 3 auxiliary support frame, 4 laser tracker, 5 internal gear, 6 gear ring, 7 hydraulic push rod, 8 arc push plate, 9 laser pen, 10 pin shaft, 11 moving plate, 12 connecting line, 13 weight, 14 circular slide, 15 harmonic reducer, 16 data analyzer, 17 display screen, 18 measuring board. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 ,This embodiment provides a technical solution: a harmonic reducer rigidity testing platform, including a platform body 1;

[0025] A measuring plate 18 is provided on the left side of the platform body 1, and a fixing plate 2 is symmetrically provided on the right side of the platform body 1. A mounting plate is provided between the fixing plates 2. A data analyzer 16 is provided between the measuring plate 18 and the mounting plate. A circular hole is provided in the middle of the mounting plate, and an internal gear 5 is provided in the circular hole. A harmonic reducer 15 is provided inside the internal gear 5.

[0026] A laser pen 9 is installed on the output end of the harmonic reducer 15, the lower end of the measuring plate 18 is fixedly connected to the upper end of the platform body 1, and a laser tracker 4 is fixedly installed on the fixed plate 2 on one side of the platform body 1. The laser pen 9 is set in the horizontal direction, and the laser pen 9 is facing the measuring plate 18 and is separated from the measuring plate 18 by a preset distance. The input end of the laser tracker 4 is electrically connected to the output end of the external controller. When measuring, the laser pen 9 is turned on, and the external controller starts the laser tracker 4, and the harmonic reducer 15 starts to rotate. The harmonic reducer 15 rotates and the laser pen 9 starts to rotate at the same time, and then the projection position of the laser pen 9 on the measuring plate 18 changes. The laser tracker 4 records the changed position of the projection and transmits it to the data analyzer 16. The rigid performance of the harmonic reducer 15 is measured by the cooperation of the laser pen 9 and the laser tracker 4. The overall structure is simple and the floor area is small.

[0027] A gear ring 6 is provided inside the internal gear 5, and the internal gear 5 is meshed with the gear ring 6. The right end of the gear ring 6 is fixedly connected to the circular ring. Moving plates 11 are symmetrically installed at both ends of the circular ring. A hanging column is fixedly installed on the moving plate 11 on one side of the circular ring. A weight 13 is provided under the hanging column. The rotation of the moving plate 11 causes the circular ring to rotate, and the rotation of the circular ring causes the gear ring 6 to rotate on the internal gear 5, which can change the projection position of the laser pen 9 on the measuring plate 18 on the test field.

[0028] A circular slide groove 14 is provided on the mounting plate, and a slider is slidably provided in the circular slide groove 14, and the slider is fixedly connected to the movable plate 11, and a connecting line 12 is fixedly connected to the hanging column, and the lower end of the connecting line 12 is fixedly connected to the weight 13. By changing the weight of the weight 13, the projection position of the laser pen 9 on the measuring plate 18 in the test field can be further changed, and the load weight can be conveniently changed. In combination with the projection position of the laser pen on the measuring plate 18, the rigid backlash value of the harmonic reducer 15 can be simply and conveniently measured, and the operation is simple and the testing cost is low.

[0029] A hydraulic push rod 7 is symmetrically provided on the inner side of the gear ring 6, the outer end of the hydraulic push rod 7 is fixedly connected to the inner end of the gear ring 6, the output end of the hydraulic push rod 7 is fixedly connected to the arc-shaped push plate 8, the input end of the hydraulic push rod 7 is electrically connected to the output end of the external controller, the external controller starts the hydraulic push rod 7, the hydraulic push rod 7 starts to move with the arc-shaped push plate 8, and the harmonic reducer 15 starts to be fixed. By setting the hydraulic push rod 7 and the arc-shaped push plate 8, the harmonic reducer 15 can be fixed and the rotation of the harmonic reducer 15 can be restricted.

[0030] An auxiliary support plate 3 is fixedly connected to each of the four corners on both sides of the fixed plate 2. The lower end of the auxiliary support plate 3 is fixedly connected to the upper end of the platform body 1. The auxiliary support plate 3 is used to support the fixed plate 2 to make the fixed support of the fixed plate 2 more stable.

[0031] The lower end of the data analyzer 16 is fixedly connected to the upper end of the platform body 1, and a display screen 17 is fixedly installed on the data analyzer 16. The input end of the data analyzer 16 is electrically connected to the output end of the laser tracker 4. Through the setting of the data analyzer 16, the position of the laser detected by the laser tracker 4 can be calculated in the data analyzer 16 to obtain the stiffness of the harmonic reducer 15 and display it through the display screen 17.

[0032] The working principle of a harmonic reducer rigidity testing platform provided by the utility model is as follows: when measuring, first put the harmonic reducer 15 into the gear ring 6, the external controller starts the hydraulic push rod 7, the hydraulic push rod 7 starts to move with the arc push plate 8, and the harmonic reducer 15 starts to be fixed, the harmonic reducer 15 can be fixed, the rotation of the harmonic reducer 15 can be limited, the laser pen 9 is turned on, the laser tracker 4 is started, the weight of the weight 13 is changed, the rotation of the moving plate 11 drives the circular ring to rotate, the rotation of the circular ring drives the gear ring 6 to rotate on the inner gear 5, and the projection position of the laser pen 9 on the measuring plate 18 on the test field can be changed. , can conveniently change the load weight, and cooperate with the projection position of the laser pen on the measuring plate 18, can simply and conveniently measure the rigid backlash value of the harmonic reducer 15, simple operation, low test cost, the data analyzer 16 can calculate the position of the laser detected by the laser tracker 4 in the data analyzer 16 to obtain the stiffness of the harmonic reducer 15, and display it through the display screen 17, and measure the rigid performance of the harmonic reducer 15 through the cooperation of the laser pen 9 and the laser tracker 4. The overall structure is simple and the floor area is small. The auxiliary support plate 3 is used to support the fixed plate 2, so that the fixed support of the fixed plate 2 is more stable.

[0033] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A harmonic reducer rigidity test platform, characterized by: It comprises a platform body (1); A measuring plate (18) is provided on the left side of the platform body (1), a fixing plate (2) is symmetrically provided on the right side of the platform body (1), a mounting plate is provided between the fixing plates (2), a data analyzer (16) is provided between the measuring plate (18) and the mounting plate, a circular hole is provided in the middle of the mounting plate, an internal gear (5) is provided in the circular hole, and a harmonic reducer (15) is provided inside the internal gear (5); A laser pen (9) is installed on the output end of the harmonic reducer (15); the lower end of the measuring plate (18) is fixedly connected to the upper end of the platform body (1); a laser tracker (4) is fixedly installed on a fixed plate (2) on one side of the platform body (1); the laser pen (9) is arranged in a horizontal direction, and the laser pen (9) is directly facing the measuring plate (18) and is separated from the measuring plate (18) by a preset distance; and the input end of the laser tracker (4) is electrically connected to the output end of an external controller.

2. The harmonic reducer rigidity testing platform according to claim 1, characterized in that: A gear ring (6) is provided inside the internal gear (5), the internal gear (5) meshes with the gear ring (6), the right end of the gear ring (6) is fixedly connected to a circular ring, moving plates (11) are symmetrically installed at both ends of the circular ring, a hanging column is fixedly installed on the moving plate (11) on one side of the circular ring, and a weight (13) is provided below the hanging column.

3. The harmonic reducer rigidity testing platform according to claim 1, characterized in that: A circular slide groove (14) is provided on the mounting plate, a slider is slidably provided in the circular slide groove (14), the slider is fixedly connected to the movable plate (11), a connecting line (12) is fixedly connected to the hanging column, and the lower end of the connecting line (12) is fixedly connected to the weight (13).

4. The harmonic reducer rigidity testing platform according to claim 2, characterized in that: A hydraulic push rod (7) is symmetrically arranged on the inner side of the gear ring (6), the outer end of the hydraulic push rod (7) is fixedly connected to the inner end of the gear ring (6), the output end of the hydraulic push rod (7) is fixedly connected to the arc-shaped push plate (8), and the input end of the hydraulic push rod (7) is electrically connected to the output end of an external controller.

5. The harmonic reducer rigidity testing platform according to claim 1, characterized in that: An auxiliary support plate (3) is fixedly connected to each of the four corners on both sides of the fixed plate (2), and the lower end of the auxiliary support plate (3) is fixedly connected to the upper end of the platform body (1).

6. The harmonic reducer rigidity testing platform according to claim 1, characterized in that: The lower end of the data analyzer (16) is fixedly connected to the upper end of the platform body (1), a display screen (17) is fixedly installed on the data analyzer (16), and the input end of the data analyzer (16) is electrically connected to the output end of the laser tracker (4).

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