Automatic clamp for testing main speed reducer

Abstract

The utility model discloses an automatic clamp for testing a main speed reducer, which comprises a clamping table, a screw groove is arranged above the clamping table, a double-end threaded rod is arranged in the screw groove, a first motor is fixedly connected on the side wall of the clamping table, one end of the double-end threaded rod is rotatably connected on the side wall of the screw groove, and the other end of the double-end threaded rod is rotatably connected on the side wall of the screw groove. The other end of the double-end threaded rod penetrates through the inner side wall of the screw groove and is fixedly connected with an output shaft of a first motor, two clamping block assemblies are arranged in the screw groove in a sliding mode, the two clamping block assemblies are both connected with the double-end threaded rod, and a testing assembly is arranged on one side of the clamping table. According to the utility model, speed reducers with different widths can be efficiently clamped, transmission shaft tests at multiple positions can be flexibly carried out, and the working efficiency and the applicability are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of main reducer testing, and particularly relates to an automatic fixture for main reducer testing. Background Art

[0002] The main reducer is an indispensable part of the automobile transmission system. Through functions such as reducing the rotational speed, increasing the torque, and changing the power transmission direction, it ensures that the power of the engine is efficiently and safely transmitted to the wheels. As a key auxiliary tool in the testing process, the performance of the fixture directly affects the accuracy and efficiency of the testing.

[0003] The existing fixtures for main reducer testing lack rapid positioning. At the same time, due to different internal structures of different main reducers, the drive shafts of different main reducers are located at different positions. Most of the existing testing fixtures have fixed testing positions and cannot be applied to main reducers with drive shafts at different positions, resulting in low applicability. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose an automatic fixture for main reducer testing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic fixture for main reducer testing, including a clamping table. A screw rod groove is opened above the clamping table. A double-headed screw rod is installed in the screw rod groove. One side wall of the clamping table is fixedly connected with a first motor. One end of the double-headed screw rod is rotatably connected to the side wall of the screw rod groove, and the other end of the double-headed screw rod penetrates the inner side wall of the screw rod groove and is fixedly connected with the output shaft of the first motor. Two clamping block assemblies are slid in the screw rod groove. Both of the two clamping block assemblies are connected with the double-headed screw rod. A testing assembly is arranged on one side of the clamping table.

[0007] As a further improvement of the utility model, the clamping block assembly includes a threaded groove block slid in the screw rod groove. The threaded groove block is threadedly sleeved on the double-headed screw rod. The upper end of the threaded groove block is fixedly connected with a clamping block. An anti-slip layer is installed on one side surface of the clamping block.

[0008] As a further improvement of the utility model, the testing assembly includes a hydraulic press arranged on one side of the clamping table. The telescopic end of the hydraulic press is fixedly connected with a fixed block. A lead screw groove is opened above the fixed block. A driving mechanism is arranged in the lead screw groove. A T-shaped slider is connected to the driving mechanism. A testing mechanism is connected to the upper end of the T-shaped slider.

[0009] As a further improvement of the present utility model, the driving mechanism includes a single-headed lead screw installed in the lead screw groove. A second motor is installed on one side wall of the fixed block. One end of the single-headed lead screw is rotatably connected to the inner side wall of the lead screw groove, and the other end of the single-headed lead screw penetrates through the inner side wall of the lead screw groove and is fixedly connected to the output shaft of the second motor. The T-shaped slider is threadedly sleeved on the single-headed lead screw.

[0010] As a further improvement of the present utility model, the testing mechanism includes a cylinder fixedly connected to the upper end of the T-shaped block. The telescopic end of the cylinder is fixedly connected with a fixing plate. A reduction motor is installed on one side of the fixing plate. The output shaft end of the reduction motor penetrates through the side wall of the fixing plate and is fixedly connected with a rotating shaft.

[0011] As a further improvement of the present utility model, a plurality of connecting columns are installed on the side wall of the rotating shaft, and the plurality of connecting columns are used for connecting with the transmission shaft of the reducer.

[0012] The beneficial effects of the present utility model are as follows:

[0013] By providing the clamping block assembly, the first motor, and the double-headed threaded rod, driving the first motor to drive the double-headed threaded rod to rotate. The rotation of the double-headed threaded rod will cause the two threaded groove blocks to slide towards each other in the screw groove. When the two threaded groove blocks slide towards each other, they will drive the two clamping blocks to move away from or close to each other, achieving the clamping of reducers with different widths and improving work efficiency.

[0014] By providing the testing assembly, starting the hydraulic press can lift or lower the fixed block, thereby driving the driving mechanism and the testing mechanism to lift or lower. Then, starting the second motor to drive the single-headed lead screw to rotate. The rotation of the single-headed lead screw causes the T-shaped slider to slide in the lead screw groove, thereby driving the upper testing mechanism to move. Then, driving the cylinder can drive the fixing plate to move, enabling the testing mechanism to test different positions of the transmission shaft on different main reducers, with strong applicability.

[0015] The present utility model can efficiently clamp reducers with different widths and flexibly perform multi-position transmission shaft tests, significantly improving work efficiency and applicability. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of an automatic fixture for testing a main reducer proposed by the present utility model;

[0017] Figure 2 It is a schematic structural diagram of an automatic fixture for testing a main reducer proposed by the present utility model from a top view angle;

[0018] Figure 3 It is a schematic structural diagram of the connection between the T-shaped slider and the cylinder of an automatic fixture for testing a main reducer proposed by the present utility model.

[0019] In the figure: 1 clamping table, 2 clamping block, 3 screw rod groove, 4 double-headed screw rod, 5 threaded groove block, 6 rotating shaft, 7 first motor, 8 second motor, 9 fixing block, 10 lead screw groove, 11 single-headed lead screw, 12 T-shaped slider, 13 cylinder, 14 fixing plate, 15 reduction motor, 16 hydraulic press, 17 connecting column. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Figures 1 - 3 , an automatic fixture for testing a main reducer, including a clamping table 1. A screw rod groove 3 is opened above the clamping table 1. A double-headed screw rod 4 is installed in the screw rod groove 3. A first motor 7 for driving the double-headed screw rod 4 is fixedly connected to the side wall of the clamping table 1. One end of the double-headed screw rod 4 is rotatably connected to the side wall of the screw rod groove 3, and the other end of the double-headed screw rod 4 penetrates the inner side wall of the screw rod groove 3 and is fixedly connected to the output shaft of the first motor 7. Two clamping block assemblies slide in the screw rod groove 3. Both clamping block assemblies are connected to the double-headed screw rod 4. The clamping block assembly includes a threaded groove block 5 that slides in the screw rod groove 3. The threaded groove block 5 has the same shape as the screw rod groove 3. The threaded groove block 5 is threadedly sleeved on the double-headed screw rod 4. When the double-headed screw rod 4 rotates, the threaded groove block 5 will move in the screw rod groove 3. A clamping block 2 is fixedly connected to the upper end of the threaded groove block 5. The contact surface between the clamping block 2 and the threaded groove block 5 is welded. An anti-slip layer is installed on one side surface of the clamping block 2. The anti-slip layer is used to prevent the reducer from sliding during testing. A testing component is provided on one side of the clamping table 1.

[0022] The test component includes a hydraulic press 16 arranged on one side of the clamping table 1. A fixed block 9 is fixedly connected to the telescopic end of the hydraulic press 16. The hydraulic press 16 is used to lift the fixed block 9. A lead screw groove 10 is opened above the fixed block 9. A driving mechanism is arranged in the lead screw groove 10. A T-shaped slider 12 is connected to the driving mechanism. The driving mechanism includes a single-head lead screw 11 installed in the lead screw groove 10. A second motor 8 for driving the single-head lead screw 11 is installed on one side wall of the fixed block 9. One end of the single-head lead screw 11 is rotatably connected to the inner side wall of the lead screw groove 10, and the other end of the single-head lead screw 11 penetrates through the inner side wall of the lead screw groove 10 and is fixedly connected to the output shaft of the second motor 8. The T-shaped slider 12 is threadedly sleeved on the single-head lead screw 11. When the single-head lead screw 11 rotates, the T-shaped slider 12 will move in the lead screw groove 10. The upper end of the T-shaped slider 12 is connected to a test mechanism. The test mechanism includes a cylinder 13 fixedly connected to the upper end of the T-shaped block. A fixed plate 14 is fixedly connected to the telescopic end of the cylinder 13. A reduction motor 15 for testing is installed on one side of the fixed plate 14. The output shaft end of the reduction motor 15 penetrates through the side wall of the fixed plate 14 and is fixedly connected to a rotating shaft 6. The rotating shaft 6 is used to connect to the transmission shaft of the reducer. A plurality of connecting columns 17 are installed on the side wall of the rotating shaft 6. The plurality of connecting columns 17 are used to connect to the notches on the transmission shaft of the reducer.

[0023] When the utility model is in use, the worker first places the main reducer on the clamping table 1. Subsequently, by driving the first motor 7, the double-head threaded rod 4 rotates. When the double-head threaded rod 4 rotates, the two threaded groove blocks 5 will slide towards each other in the screw groove 3. When the two threaded groove blocks 5 slide towards each other, they will drive the two clamping blocks 2 to move away from or close to each other. When the two clamping blocks 2 move towards each other, they will clamp the main reducer. Subsequently, by starting the hydraulic press 16, the fixed block 9 can be lifted or lowered, thereby driving the driving mechanism and the test mechanism to be lifted or lowered. Subsequently, by starting the second motor 8, the single-head lead screw 11 rotates. The rotation of the single-head lead screw 11 causes the T-shaped slider 12 to slide in the lead screw groove 10, thereby driving the test mechanism above to move. By driving the cylinder 13, the fixed plate 14 can be driven to move. Under the combined action of the hydraulic press 16, the cylinder 13 and the T-shaped slider 12, the fixed plate 14 can indirectly drive the rotating shaft 6 to move and adjust up, down, left, right, front and back, and can connect to the transmission shafts at different positions on different main reducers, and then conduct tests.

[0024] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the utility model.

Claims

1. An automated fixture for testing a main reducer, comprising a clamping table (1), characterized in that: A screw groove (3) is provided above the clamping platform (1), a double-headed threaded rod (4) is installed in the screw groove (3), a first motor (7) is fixedly connected to the side wall of the clamping platform (1), one end of the double-headed threaded rod (4) is rotatably connected to the side wall of the screw groove (3), the other end of the double-headed threaded rod (4) passes through the inner wall of the screw groove (3) and is fixedly connected to the output shaft of the first motor (7), two clamping block assemblies are slidably arranged in the screw groove (3), and both of the two clamping block assemblies are connected to the double-headed threaded rod (4), and a test assembly is provided on one side of the clamping platform (1).

2. The automatic fixture for testing the main reducer according to claim 1, characterized in that: The clamping block assembly comprises a threaded groove block (5) which slides in a screw groove (3); the threaded groove block (5) is threadedly sleeved on a double-headed threaded rod (4); the upper end of the threaded groove block (5) is fixedly connected to a clamping block (2); and a non-slip layer is installed on one side surface of the clamping block (2).

3. The automatic fixture for testing the main reducer according to claim 1, characterized in that: The test assembly comprises a hydraulic press (16) arranged on one side of a clamping table (1); a telescopic end of the hydraulic press (16) is fixedly connected to a fixed block (9); a screw groove (10) is provided above the fixed block (9); a driving mechanism is provided in the screw groove (10); a T-shaped slider (12) is connected to the driving mechanism; and a testing mechanism is connected to the upper end of the T-shaped slider (12).

4. The automatic fixture for testing the main reducer according to claim 3, characterized in that: The driving mechanism comprises a single-end screw (11) installed in the screw groove (10); a second motor (8) is installed on a side wall of the fixed block (9); one end of the single-end screw (11) is rotatably connected to the inner wall of the screw groove (10); the other end of the single-end screw (11) passes through the inner wall of the screw groove (10) and is fixedly connected to the output shaft of the second motor (8); and the T-shaped slider (12) is threadedly sleeved on the single-end screw (11).

5. The automatic fixture for testing the main reducer according to claim 3, characterized in that: The testing mechanism comprises a cylinder (13) fixedly connected to the upper end of the T-block, the telescopic end of the cylinder (13) is fixedly connected to a fixing plate (14), a reduction motor (15) is installed on one side of the fixing plate (14), and the output shaft end of the reduction motor (15) passes through the side wall of the fixing plate (14) and is fixedly connected to a rotating shaft (6).

6. The automatic fixture for testing the main reducer according to claim 5, characterized in that: A plurality of connecting columns (17) are installed on the side wall of the rotating shaft (6), and the plurality of connecting columns (17) are used to be connected to the transmission shaft of the reducer.

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