A multifunctional test bench for mechanical measurement and testing

Abstract

The present invention relates to the field of a multifunctional mechanical metrology test bench, and discloses a multifunctional mechanical metrology test bench, including a motor fixing bracket and a test adjustment component, the motor fixing bracket and the test adjustment component are connected to form a test bench base; a motor fixing component and a motor testing component, the motor fixing component and the motor testing component are respectively installed above the motor fixing bracket and the test adjustment component, the motor fixing component is used for motor fixing, and the motor testing component is used for the installation of motor testing equipment. Compared with the prior art, the present application has the advantages of unified installation of multiple test equipment and testing in the best order, and solves a series of problems such as high test cost, low efficiency, and inaccurate test results caused by the test order.

Description

Technical Field

[0001] The present invention relates to the field of mechanical metrology testing, in particular to mechanical metrology testing of motors. Background Art

[0002] The mechanical metrology test of the motor usually includes the inspection of the technical indicators such as the electrical performance, mechanical performance, safety performance and reliability of the motor. These tests can fully reflect the relevant performance data of the tested motor. Through these data, it can be judged whether the tested motor meets the design requirements, the quality, and predict the improvement goals and directions. The general test items of the test system include parameters such as voltage, current, power, speed, torque, efficiency, life test, temperature rise test, etc.

[0003] However, at present, mechanical tests on motors, including speed, load, torque and vibration tests, require independent testing equipment with single functions, inability to test quickly, and low efficiency. Most importantly, the order of speed, load, torque and vibration tests on the motor will affect the test results of the motor. Specifically, if the load or torque test is performed first, the motor may generate heat due to long-term high-load operation, which may affect the results of the subsequent speed test because the increase in motor temperature may affect its magnetic properties and efficiency. On the other hand, if the speed test is performed first, the performance data of the motor under no-load or light-load conditions may not reflect the thermal effects and mechanical stresses that may be encountered in actual applications.

[0004] Therefore, in view of the above-mentioned existing motor mechanical testing problems, the present invention provides a multifunctional mechanical metrology test bench. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a multifunctional mechanical metrology test bench, which has the advantages of unified installation of multiple test equipment and testing in the best sequence, thereby solving a series of problems such as high testing cost, low efficiency, and inaccurate test results caused by the test sequence.

[0006] To achieve the above object, the present invention provides the following technical solution: a multifunctional mechanical metrology test bench, comprising:

[0007] The motor fixing bracket and the test adjustment component are connected to form the test bench base;

[0008] The motor fixing assembly and the motor testing assembly are respectively installed above the motor fixing bracket and the test adjustment assembly. The motor fixing assembly is used to fix the motor, and the motor testing assembly is used to install the motor testing equipment.

[0009] A support column is rotatably mounted on the upper end of the test bracket, a gear sleeve is sleeved on the outer surface of the support column, a driving motor is mounted on the bottom of the test bracket, a driving gear is fixedly connected to the output end of the driving motor, the driving gear is meshed with the gear sleeve, a cross-shaped support plate is fixedly connected to the upper end of the support column, arc plates are fixedly connected to the ends of the support plate, test installation plates are connected between adjacent arc plates, and a speed test assembly, a load test assembly, a torque test assembly and a vibration test assembly are respectively mounted on the plurality of test installation plates;

[0010] A motor mounting slide is fixedly arranged at the upper end of the motor fixing bracket, a motor mounting plate is positioned on the motor mounting slide, a motor to be tested is mounted on the motor mounting plate, and the speed test component, the load test component, the torque test component and the vibration test component are respectively used for speed test, load test, torque test and vibration test of the motor to be tested;

[0011] A fixing rod is vertically passed through the middle of the support column, the lower end of the fixing rod is fixedly connected to the test bracket, the upper end of the fixing rod is fixedly connected to a fixing frame, and a controller is installed on the upper end of the fixing frame.

[0012] Preferably, a plurality of positioning grooves are provided at the upper end of the test mounting plate for locating the positions of the speed test assembly, the load test assembly, the torque test assembly and the vibration test assembly, a plurality of sliding blocks are fixedly connected to the two side walls of the test mounting plate, a plurality of sliding grooves are provided on the opposite side walls of the adjacent arc-shaped plates, and the sliding blocks are placed in the corresponding sliding grooves.

[0013] Preferably, the speed test assembly, load test assembly, torque test assembly and vibration test assembly all include an L-shaped test plate installed on a test mounting plate, the side wall of the L-shaped test plate is fixedly connected to a connecting seat, a test sensor is installed on the upper end of the connecting seat, a driven test piece is installed on the vertical side wall of the L-shaped test plate, the input end and the output end of the test sensor are respectively connected to an active joint and a driven joint, and the driven joint is connected to the central axis of the driven test piece.

[0014] Preferably, a plurality of joint grooves are provided at the upper end of the horizontal side wall of the L-shaped test plate, and a sensor joint is installed in the joint groove. A cylinder is installed in the fixed frame, and the output end of the cylinder is fixedly connected to a support plate. A plurality of plug grooves are provided at the upper end of the support plate, and a controller plug corresponding to the sensor joint is installed in the plug groove, and the controller plug is connected to the controller.

[0015] Preferably, a test adjustment assembly is installed between the motor fixing assembly and the motor testing assembly, and the test adjustment assembly is installed above the test bracket, and the test adjustment assembly includes a vertical screw, and the vertical screw is rotatably installed on the test bracket, and the upper outer surface of the vertical screw is provided with a connecting plate through a threaded rotating sleeve, and the upper surface of the connecting plate is fixedly connected to a lifting plate through a connecting rod, and the bottom end of the connecting plate is fixedly connected to a vertical rod, and the lower end of the vertical rod is telescopically installed on the test bracket, and the outer surface of the vertical screw is fixedly sleeved with a driven bevel gear, and a rotating rod is rotatably installed above the test bracket, and the end of the rotating rod is fixedly connected to an active bevel gear, and the active bevel gear is meshed with the driven bevel gear, and the end of the rotating rod is fixedly connected to a turning handle.

[0016] Preferably, a return spring is connected between the upper end of the sliding block and the inner top wall of the sliding groove.

[0017] Preferably, the connector slots and plug slots on the L-shaped test plate and the abutment plate are distributed in four groups of two.

[0018] Preferably, the driving motor installed at the bottom of the test bracket is a stepping motor.

[0019] Compared with the prior art, the present invention provides a multifunctional mechanical metrology test bench, which has the following beneficial effects:

[0020] 1. This multifunctional mechanical metrology test bench tests the speed, load, torque and vibration of the motor through a speed test component, a load test component, a torque test component and a vibration test component. The test process is continuous and convenient with a high degree of automation, and there is no need to repeatedly disassemble and assemble the motor.

[0021] 2. This kind of multifunctional mechanical metrology test bench, when using the torque test component to perform torque test on the motor to be tested, needs to ensure that the torque upper limit of the torque test component does not exceed the torque calculation result under the maximum speed condition, so as to avoid the torque size we set within the safety range when performing torque test on the motor, so as to avoid damage to the motor.

[0022] 3. This multifunctional mechanical metrology test bench uses the torque test component to perform a torque test on the motor to be tested, then turns on the drive motor again, and pushes the speed test component to face the motor to be tested, and tests the speed of the motor to be tested again. This process can measure the impact of thermal effects and mechanical stresses on the speed that may be encountered in actual applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the isometric three-dimensional structure of the present invention;

[0024] Figure 2This is a schematic diagram of the three-dimensional structure of the present invention from an upward viewing angle;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the bracket of the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the motor test assembly of the present invention;

[0027] Figure 5 This is a schematic diagram of the test installation board of the present invention installed from a top-down perspective;

[0028] Figure 6 This is a schematic diagram of the structure of the test installation plate of the present invention when the upward viewing angle is installed;

[0029] Figure 7 This is a schematic diagram of the test installation plate and the arc connection structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the test adjustment component of the present invention;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the test assembly of the present invention;

[0032] Fig.10 It is a schematic diagram of the connection structure between the L-shaped test plate and the abutment plate of the present invention.

[0033] In the figure: 1. Motor fixing assembly; 2. Motor test assembly; 3. Motor mounting plate; 4. Motor to be tested; 5. Motor mounting slide; 6. Motor fixing bracket; 7. Test adjustment assembly; 8. Test bracket; 9. Gear sleeve; 10. Drive gear; 11. Support column; 12. Fixing frame; 13. Arc plate; 14. Speed ​​test assembly; 15. Load test assembly; 16. Controller; 17. Torque test assembly; 18. Vibration test assembly; 19. Test mounting plate; 20. Support plate; 21. Slide groove; 22. Positioning groove; 23. Sliding block; 24. Rotating rod; 25. Active bevel gear; 26. Vertical screw; 27. Driven bevel gear; 28. Lifting plate; 29. ​​Driven test piece; 30. Driven joint; 31. Active joint; 32. Test sensor; 33. Connecting seat; 34. L-shaped test plate; 35. Abutment plate; 36. Cylinder; 37. Joint groove; 38. Sensor joint; 39. Plug groove; 40. Controller plug; 41. Connecting rod; 42. Connecting plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, this application proposes a multifunctional mechanical metrology test bench.

[0036] Embodiment 1

[0037] like Figure 1-6 As shown in 9-10, a multifunctional mechanical metrology test bench comprises:

[0038] The motor fixing bracket 6 and the test adjustment component 7 are connected to form a test bench base for supporting the entire test;

[0039] The motor fixing assembly 1 and the motor testing assembly 2 are respectively installed above the motor fixing bracket 6 and the test adjustment assembly 7. The motor fixing assembly 1 is used for fixing the motor, and the motor testing assembly 2 is used for installing the motor testing equipment. The motor testing assembly 2 is a motor mechanical measurement test bench.

[0040] A motor mounting slide 5 is fixedly provided at the upper end of the motor fixing bracket 6, a motor mounting plate 3 is positioned and provided on the motor mounting slide 5, a motor 4 to be tested is installed on the motor mounting plate 3, a support column 11 is rotatably installed on the upper end of the test bracket 8, a gear sleeve 9 is sleeved on the outer surface of the support column 11, a driving motor is installed at the bottom of the test bracket 8, a driving gear 10 is fixedly connected to the output end of the driving motor, the driving gear 10 is meshed with the gear sleeve 9, a cross-shaped supporting plate 20 is fixedly connected to the upper end of the support column 11, an arc plate 13 is fixedly connected to the ends of the support plate 20, and a test mounting plate 19 is connected between adjacent arc plates 13, a speed test assembly 14, a load test assembly 15, a torque test assembly 17 and a vibration test assembly 18 are respectively installed on a plurality of test mounting plates 19, and the speed test assembly 14, the load test assembly 15, the torque test assembly 17 and the vibration test assembly 18 are respectively used for speed test, load test, torque test and vibration test of the motor 4 to be tested;

[0041] In this embodiment, we use the speed test component 14, the load test component 15, the torque test component 17 and the vibration test component 18 to test the speed, load, torque and vibration of the motor respectively. Specifically, the motor 4 to be tested is first installed on the motor mounting plate 3 by bolts, wherein a plurality of positioning grooves are provided on the motor mounting slide 5, and the motor mounting plate 3 is slidably arranged in the positioning grooves on the motor mounting slide 5 to ensure that the motor mounting plate 3 and the motor 4 to be tested are installed in the center of the motor mounting slide 5;

[0042] After the motor 4 to be tested is installed, the output end of the motor 4 to be tested is facing the speed test component 14, and the speed test component 14 is used to test the no-load speed of the motor 4 to be tested;

[0043] Then turn on the driving motor. The driving motor installed at the bottom of the test bracket 8 is a stepping motor. The driving motor drives the driving gear 10 to rotate. The driving gear 10 is meshed with the gear sleeve 9. The rotating driving gear 10 synchronously drives the gear sleeve 9 and the supporting column 11 thereon to rotate, and drives the supporting column 11 to rotate ninety degrees. From a top-down perspective, the arc plate 13 and the test mounting plate 19 connected thereto rotate counterclockwise, so that the load test assembly 15 is directly opposite to the motor 4 to be tested, and the load test assembly 15 is used to test the load of the motor 4 to be tested.

[0044] The no-load speed test of the speed test component 14 represents the maximum speed that the motor can reach under no-load or very light-load conditions. This parameter reflects the ultimate operating capacity of the motor.

[0045] After the load test of the load test component 15, the maximum load of the motor can be tested. This test process is to gradually increase the load of the motor until the motor speed is 0, at which time the motor load is the maximum load;

[0046] It is worth mentioning that the speed test provides the speed data of the motor 4 under no-load conditions, which can be used as a comparison benchmark when performing a load test. If the speed of the motor 4 under test in the load test is significantly lower than the speed under no-load conditions, this may indicate that the performance of the motor 4 under test is reduced or there is efficiency loss under a specific load.

[0047] In addition, the speed test result can help determine the safe operating range of the motor 4 under different loads. If the speed of the motor 4 under test is too low under a specific load, it may cause overheating or other safety problems.

[0048] Therefore, the speed data can be used to evaluate whether the thermal protection and overload protection settings of the motor are appropriate;

[0049] Continue to drive the motor test assembly 2 to rotate ninety degrees by the driving motor, so that the torque test assembly 17 is facing the motor 4 to be tested, and use the torque test assembly 17 to test the maximum torque of the motor 4 to be tested. It is worth mentioning that in this process, the limit performance of the motor 4 to be tested needs to be considered, because the maximum torque of the motor refers to the maximum rotational torque that the motor can generate, which requires considering the following factors:

[0050] According to the maximum speed of the motor 4 to be tested, when the torque test needs to be performed, the control of its upper limit, the mathematical relationship between the speed and the torque is:

[0051] P=T×ω

[0052] Where P is the power of the motor, T is the torque of the motor, and ω is the angular velocity of the motor.

[0053] Also because

[0054]

[0055] Where n is the speed of the motor

[0056] therefore

[0057]

[0058] Therefore, when the torque test component 17 is used to perform a torque test on the motor 4 to be tested, it is necessary to ensure that the upper limit of the torque tested by the torque test component 17 does not exceed the torque calculation result under the maximum speed condition;

[0059] It should be noted that after we use the load test assembly 15 to perform a load test on the motor 4 to be tested, we need to wait for the temperature of the motor 4 to be tested to drop before performing a torque test on the motor 4 to be tested, so as to avoid fatigue or stress of some parts of the motor 4 to be tested caused by the load test, which may affect the torque test;

[0060] After the torque test component 17 is used to test the motor 4, the drive motor is turned on again, and the speed test component 14 is pushed to face the motor 4 to test the speed of the motor 4 to test again. This process can measure the influence of thermal effects and mechanical stresses on the speed that may be encountered in actual applications;

[0061] Finally, turn on the drive motor, push the vibration test assembly 18 to face the motor 4 to be tested, and perform a vibration test on the motor 4 to be tested. Through the vibration test, it is possible to detect whether the motor has abnormal vibration, predict the life of the motor, and discover potential faults in advance.

[0062] Further, in the above scheme, a fixing rod is vertically passed through the middle of the support column 11, the lower end of the fixing rod is fixedly connected to the test bracket 8, the upper end of the fixing rod is fixedly connected to the fixing frame 12, the upper end of the fixing frame 12 is installed with a controller 16, and the upper end of the test mounting plate 19 is provided with a plurality of positioning grooves 22 for positioning the positions of the speed test component 14, the load test component 15, the torque test component 17 and the vibration test component 18. The two side walls of the test mounting plate 19 are fixedly connected with a plurality of sliders 23, and the opposite side walls of the adjacent arc-shaped plates 13 are provided with a plurality of slide grooves 21, and the sliders 23 are correspondingly placed in the slide grooves 21. The speed test component 14, the load test component 15, the torque test component 17 and the vibration test component 18 all include L-shaped test components installed on the test mounting plate 19. A test plate 34, a side wall of the L-shaped test plate 34 is fixedly connected with a connecting seat 33, a test sensor 32 is installed on the upper end of the connecting seat 33, a driven test piece 29 is installed on the vertical side wall of the L-shaped test plate 34, the input end and the output end of the test sensor 32 are respectively connected with an active joint 31 and a driven joint 30, the driven joint 30 and the driven test piece 29 are connected by a central axis, a plurality of joint grooves 37 are provided on the upper end of the horizontal side wall of the L-shaped test plate 34, a sensor joint 38 is installed in the joint groove 37, a cylinder 36 is installed in the fixed frame 12, the output end of the cylinder 36 is fixedly connected with a butt plate 35, a plurality of plug grooves 39 are provided on the upper end of the butt plate 35, a controller plug 40 corresponding to the sensor joint 38 is installed in the plug groove 39, and the controller plug 40 is connected to the controller 16.

[0063] When we use the speed test assembly 14, the load test assembly 15, the torque test assembly 17 and the vibration test assembly 18 to test the motor 4 to be tested, the cylinder 36 is used to push the plate 35 to move, and the plate 35 pushes the L-shaped test plate 34 and the test equipment installed thereon to move, so that the active joint 31 in the test equipment is connected with the output end of the motor 4 to be tested;

[0064] It is worth mentioning that the test sensor 32 in the speed test assembly 14 is a speed sensor, the active joint 31 and the driven joint 30 are couplings, wherein the driven joint 30 and the driven test piece 29 are disconnected, the active joint 31 is connected to the output shaft of the motor 4 to be tested, the sensor joint 38 connected to the test sensor 32 and the controller plug 40 connected to the controller 16 are correspondingly plugged, and the speed signal of the motor 4 to be tested detected by the speed sensor can be transmitted to the controller 16, and the speed of the motor 4 to be tested can be displayed by the controller 16. This method is an existing mature speed test method, and the present invention will not be detailed;

[0065] The test sensor 32 in the load test assembly 15 is a speed sensor, the active joint 31 and the driven joint 30 are couplings, the driven joint 30 is connected to the driven test piece 29, the active joint 31 is connected to the output shaft of the motor 4 to be tested, the driven test piece 29 is a brake, and the load is gradually increased for the rotation of the motor 4 to be tested, until the speed of the motor 4 to be tested detected by the test sensor 32 is undefined0, at which time the braking force of the driven test piece 29 is the maximum load of the motor 4 to be tested, and is displayed and recorded by the controller 16;

[0066] The test sensor 32 in the torque test assembly 17 is a torque sensor, the active joint 31 and the driven joint 30 are couplings, the driven joint 30 is connected to the driven test piece 29, the active joint 31 is connected to the output shaft of the motor 4 to be tested, and the driven test piece 29 is a dynamometer. By gradually adjusting the resistance or braking force of the dynamometer, the torque load of the motor is gradually increased, and the torque of the motor 4 to be tested is measured by the torque sensor, and displayed and recorded by the controller 16;

[0067] The test sensor 32 in the vibration test assembly 18 is a vibration sensor, and the active joint 31 and the driven joint 30 are elastic mounting clamps, wherein the driven joint 30 and the driven test piece 29 are disconnected, and the active joint 31 is connected to the output shaft of the motor 4 to be tested. The vibration data of the motor 4 to be tested is measured by the vibration sensor and displayed and recorded by the controller 16.

[0068] In this embodiment, the connector slots 37 and plug slots 39 on the L-shaped test plate 34 and the abutment plate 35 are distributed in four groups, two by two, so as to ensure that the connectors of different sensors can be connected to the controller 16 through different sensor connectors 38 and controller plugs 40.

[0069] Embodiment 2

[0070] like Figure 7-8 As shown, a test adjustment component 7 is installed between the motor fixing component 1 and the motor testing component 2. The test adjustment component 7 is installed above the test bracket 8. The test adjustment component 7 includes a vertical screw 26. The vertical screw 26 is rotatably installed on the test bracket 8. The upper outer surface of the vertical screw 26 is provided with a connecting plate 42 through a threaded rotation sleeve. The upper surface of the connecting plate 42 is fixedly connected to a lifting plate 28 through a connecting rod 41. The bottom end of the connecting plate 42 is fixedly connected to a vertical rod. The lower end of the vertical rod is telescopically installed on the test bracket 8. The outer surface of the vertical screw 26 is fixedly sleeved with a driven bevel gear 27. A rotating rod 24 is rotatably installed above the test bracket 8. The end of the rotating rod 24 is fixedly connected to an active bevel gear 25. The active bevel gear 25 is meshed with the driven bevel gear 27. The end of the rotating rod 24 is fixedly connected to a turning handle.

[0071] In this embodiment, when the speed test assembly 14, the load test assembly 15, the torque test assembly 17 and the vibration test assembly 18 are used to test the motor 4 to be tested, the speed test assembly 14, the load test assembly 15, the torque test assembly 17 and the vibration test assembly 18 are respectively aligned with the motor 4 to be tested. At this time, in order to ensure that the active joint 31 and the output shaft of the motor 4 to be tested are aligned, we manually rotate the rotating rod 24 to push the active bevel gear 25 to rotate, and the driven bevel gear 27 meshing with the active bevel gear 25 rotates, and the driven bevel gear 27 meshing with the driven bevel gear 25 rotates. The vertical screw 26 fixedly connected by the bevel gear 27 rotates, and the connecting plate 42 spirally installed on the outer surface of the vertical screw 26 moves up and down with the rotation of the vertical screw 26, thereby realizing the up and down movement of the lifting plate 28, and pushing the test mounting plate 19 to perform vertical lifting movement, thereby realizing the height adjustment of the speed test component 14, the load test component 15, the torque test component 17 and the vibration test component 18, so that the speed test component 14, the load test component 15, the torque test component 17 and the vibration test component 18 are respectively opposite to the motor 4 to be tested.

[0072] In this embodiment, a return spring is connected between the upper end of the slider 23 and the inner top wall of the slide groove 21, and after the lifting plate 28 is separated from the test installation plate 19, the test installation plate 19 is reset.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional mechanical metrology test bench, characterized in that: include, The motor fixing bracket (6) and the test adjustment component (7) are connected to form a test bench base; The motor fixing assembly (1) and the motor testing assembly (2) are respectively installed above the motor fixing bracket (6) and the testing and adjusting assembly (7), the motor fixing assembly (1) is used for fixing the motor, and the motor testing assembly (2) is used for installing the motor testing equipment; A support column (11) is rotatably mounted on the upper end of the test bracket (8), a gear sleeve (9) is sleeved on the outer surface of the support column (11), a driving motor is mounted on the bottom of the test bracket (8), a driving gear (10) is fixedly connected to the output end of the driving motor, the driving gear (10) and the gear sleeve (9) are meshed, a cross-shaped support plate (20) is fixedly connected to the upper end of the support column (11), the ends of the support plate (20) are respectively fixedly connected to arc plates (13), adjacent arc plates (13) are connected to a test mounting plate (19), and a rotation speed test assembly (14), a load test assembly (15), a torque test assembly (17) and a vibration test assembly (18) are respectively mounted on the plurality of test mounting plates (19); A motor mounting slide (5) is fixedly provided at the upper end of the motor fixing bracket (6), a motor mounting plate (3) is positioned on the motor mounting slide (5), a motor to be tested (4) is mounted on the motor mounting plate (3), and the speed test component (14), the load test component (15), the torque test component (17) and the vibration test component (18) are respectively used for speed test, load test, torque test and vibration test of the motor to be tested (4); A fixing rod is vertically passed through the middle of the support column (11), the lower end of the fixing rod is fixedly connected to the test bracket (8), the upper end of the fixing rod is fixedly connected to a fixing frame (12), and the upper end of the fixing frame (12) is installed with a controller (16).

2. A multifunctional mechanical metrology test bench according to claim 1, characterized in that: The upper end of the test installation plate (19) is provided with a plurality of positioning grooves (22) for positioning the rotation speed test assembly (14), the load test assembly (15), the torque test assembly (17) and the vibration test assembly (18); the two side walls of the test installation plate (19) are fixedly connected with a plurality of sliding blocks (23); the opposite side walls of the adjacent arc-shaped plates (13) are provided with a plurality of sliding grooves (21); the sliding blocks (23) are correspondingly placed in the sliding grooves (21).

3. The multifunctional mechanical metrology test bench according to claim 2, characterized in that: The rotation speed test assembly (14), the load test assembly (15), the torque test assembly (17) and the vibration test assembly (18) all comprise an L-shaped test plate (34) mounted on a test mounting plate (19); a connecting seat (33) is fixedly connected to the side wall of the L-shaped test plate (34); a test sensor (32) is mounted on the upper end of the connecting seat (33); a driven test piece (29) is mounted on the vertical side wall of the L-shaped test plate (34); an input end and an output end of the test sensor (32) are respectively connected to an active joint (31) and a driven joint (30); and the driven joint (30) and the driven test piece (29) are centrally connected.

4. The multifunctional mechanical metrology test bench according to claim 3, characterized in that: A plurality of joint grooves (37) are provided at the upper end of the horizontal side wall of the L-shaped test plate (34), a sensor joint (38) is installed in the joint groove (37), a cylinder (36) is installed in the fixed frame (12), an output end of the cylinder (36) is fixedly connected to a support plate (35), a plurality of plug grooves (39) are provided at the upper end of the support plate (35), a controller plug (40) corresponding to the sensor joint (38) is installed in the plug groove (39), and the controller plug (40) is connected to the controller (16).

5. The multifunctional mechanical metrology test bench according to claim 4, characterized in that: A test adjustment component (7) is installed between the motor fixing component (1) and the motor testing component (2). The test adjustment component (7) is installed above the test bracket (8). The test adjustment component (7) comprises a vertical screw (26). The vertical screw (26) is rotatably installed on the test bracket (8). A connecting plate (42) is provided on the upper outer surface of the vertical screw (26) through a threaded rotation sleeve. The upper surface of the connecting plate (42) is fixedly connected to a lifting plate (41) through a connecting rod (41). 28), the bottom end of the connecting plate (42) is fixedly connected to a vertical rod, the lower end of the vertical rod is telescopically mounted on the test bracket (8), the outer surface of the vertical screw rod (26) is fixedly sleeved with a driven bevel gear (27), a rotating rod (24) is rotatably mounted above the test bracket (8), the end of the rotating rod (24) is fixedly connected to an active bevel gear (25), the active bevel gear (25) and the driven bevel gear (27) are meshed, and the end of the rotating rod (24) is fixedly connected to a rotating handle.

6. The multifunctional mechanical metrology test bench according to claim 5, characterized in that: A return spring is connected between the upper end of the slider (23) and the inner top wall of the slide groove (21).

7. The multifunctional mechanical metrology test bench according to claim 6, characterized in that: The joint slots (37) and plug slots (39) on the L-shaped test plate (34) and the abutment plate (35) are arranged in four groups and distributed in pairs.

8. The multifunctional mechanical metrology test bench according to claim 7, characterized in that: The driving motor installed at the bottom of the test bracket (8) is a stepping motor.

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