Reducer offline test bench

Abstract

The invention discloses a reducer offline test bench, relates to the technical field of reducer testing, and solves the technical problem of low detection efficiency of high-precision reducer detection equipment assembled on a single machine. The bench comprises a frame for transporting detection tooling, wherein the detection tooling is installed with a reducer, and an assembly station, a lifting and avoiding station, a testing station and a mounting seat are sequentially arranged along the Y direction on the frame. The assembly station transports the detection tooling to the lifting station, and the lifting station transports the detection tooling to be detected to the testing station, avoids the detection tooling that has been detected, and transports the detection tooling that has been detected to the assembly station. The testing station detects the detection tooling to be detected and transports the detection tooling that has been detected to the lifting and avoiding station. The mounting seat is provided with a driving mechanism for driving the input end of the reducer and a locking mechanism for locking the driving mechanism. The invention improves the detection efficiency of the reducer through the transportation and automatic alignment of multiple stations.

Description

Technical Field

[0001] The present invention relates to the technical field of reducer testing, and more specifically to the technical field of reducer offline testing benches. Background Art

[0002] High-precision reducers have the characteristics of high installation accuracy and high detection accuracy. In order to achieve higher detection accuracy, existing detection equipment adopts a single-machine assembly method for testing, and its detection efficiency is low, which is difficult to adapt to the needs of mass production of high-precision reducers. Summary of the invention

[0003] The purpose of the present invention is to solve the technical problem of low detection efficiency of high-precision reducer detection equipment assembled on a single machine, and to provide a reducer offline test bench.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0005] The reducer offline test bench comprises a frame for transporting inspection tooling, the inspection tooling is equipped with a reducer, and the frame is provided with an assembly station, a lifting and avoiding station, a testing station and a mounting seat in sequence along the Y direction. The assembly station transports the inspection tooling to the lifting station, the lifting station transports the inspection tooling to be inspected to the testing station, avoids the inspection tooling that has been inspected, and transports the inspection tooling that has been inspected to the assembly station, the testing station inspects the inspection tooling to be inspected and transports the inspection tooling that has been inspected to the lifting and avoiding station, and the mounting seat is provided with a driving mechanism for driving the input end of the reducer and a locking mechanism for locking the driving mechanism.

[0006] Furthermore, the mounting seat includes a base and a stand arranged on the base.

[0007] Furthermore, the detection tooling includes a transfer plate, on which a reducer is mounted, and the axial direction of the reducer is distributed along the Z direction.

[0008] Furthermore, a lower toothed plate is provided on the mounting seat, and a matching upper toothed plate is provided at the lower end of the transfer plate. The lower toothed plate and the upper toothed plate include an annular ring and triangular teeth circumferentially arranged on the annular ring. The triangular teeth of the lower toothed plate are located at the upper end of the annular ring, and the triangular teeth of the upper toothed plate are located at the lower end of the annular ring.

[0009] Furthermore, the assembly station includes two assembly conveyor chains arranged on both sides of the frame along the X direction and an assembly drive mechanism that drives the two assembly conveyor chains to move synchronously. The assembly conveyor chains are distributed along the Y direction, and a flipping mechanism for flipping the detection tooling is provided between the two assembly conveyor chains.

[0010] Furthermore, the assembly drive mechanism comprises an assembly motor, and an output end of the assembly motor is connected to a driving sprocket of the assembly conveying chain.

[0011] Furthermore, the flip mechanism includes two flip fixing seats, the two flip fixing seats are arranged between the two assembly conveying chains, a flip axis distributed along the X direction is arranged between the two flip fixing seats, and two flip clamping blocks forming a U-shaped clamp are sleeved on the flip axis.

[0012] Furthermore, the flip shaft is driven by a flip motor, and the flip motor and the flip shaft are driven by a belt or a chain.

[0013] Furthermore, the lifting and avoidance station includes a lifting mechanism of two lifting detection tooling arranged on both sides of the frame along the X direction, two avoidance conveying chains located between the two lifting mechanisms, and a lifting and avoidance driving mechanism that drives the lifting and avoidance conveying chains to move synchronously, and the lifting and avoidance conveying chains are distributed along the Y direction.

[0014] Furthermore, the lifting mechanism includes lifting cylinders distributed along the Z direction and a lifting plate arranged on the lifting cylinders, the inner side of the lifting plate is provided with lifting ears, the transfer plate is provided with notches matching the lifting ears, and the lifting ears are located outside the avoidance conveying chain.

[0015] Furthermore, the test station includes a test fixture arranged on a mounting seat and a test lifting mechanism for driving the test fixture to move along the Z direction, two test conveying chains and a test driving mechanism for driving the test conveying chains to move synchronously are arranged on both sides of the test fixture along the X direction, the test conveying chains are distributed along the Y direction, and a limit block for limiting the position of the detection tooling is provided on the mounting seat.

[0016] Furthermore, the test lifting mechanism includes a guide rail and slider mechanism, a screw nut mechanism and a test lifting motor, the guide rails of the guide rail and slider mechanism are distributed along the Z direction, the slider is connected to the test fixed frame, the nut of the screw nut mechanism is connected to the test fixed frame, and the output end of the test lifting motor is connected to the screw of the screw nut mechanism.

[0017] Furthermore, a mounting frame is provided on the mounting seat, and the mounting frame is located below the two test conveyor chains. The mounting frame is provided with an output end connecting mechanism connected to the output end of the reducer.

[0018] Furthermore, the output end connection mechanism includes a floating bearing seat arranged on the mounting frame, and the floating bearing seat is provided with a floating output shaft and an output end circular grating, and the detection tooling includes an output tube sleeved on the outside of the reducer output end, and the output tube and the reducer output end are fixed by bolts, and the output tube passes through the floating output shaft, and the outer side of the output tube and the inner side of the floating output shaft form matching conical surfaces.

[0019] Further, a stiffness mounting plate is provided on the mounting base. A stiffness motor is provided on the stiffness mounting plate. The output end of the stiffness motor is connected to a lead screw nut mechanism distributed in the Y direction. The lead screw of the lead screw nut mechanism is sequentially connected to a moving seat and a tensile-compressive force sensor. A loading seat is provided on the tensile-compressive force sensor. A push rod distributed in the Y direction is provided on the loading seat. An arm rod distributed in the X direction is clamped on the push rod. One end of the arm rod away from the push rod is rotatably connected to the stiffness mounting plate through a rotating shaft. A pushing cylinder distributed in the X direction is provided on the arm rod. A U-shaped claw for clamping the output cylinder is provided on the pushing cylinder.

[0020] Further, four faces are provided at the end of the output cylinder. A photoelectric reflection switch is provided on the mounting base. The photoelectric reflection switch and the pushing cylinder are coaxially arranged. When the output cylinder rotates, when a certain face faces the photoelectric reflection switch, the rotation stops, and the pushing cylinder pushes the U-shaped claw to clamp the output cylinder.

[0021] Further, a mounting bottom plate and a bottom plate driving mechanism for driving the mounting bottom plate to move in the Z direction are provided on the mounting base. A mounting top plate and a top plate driving mechanism for driving the mounting top plate to move in the Z direction are provided on the mounting bottom plate. The driving mechanism includes an input end driving motor provided on the mounting bottom plate. A spline connecting shaft, a torque sensor and a driving bearing seat are sequentially connected in the Z direction through a coupling on the mounting top plate. The spline connecting shaft and the input end driving motor are connected through a coupling. A driving input shaft is provided on the driving bearing seat. An input end circular grating is provided on the driving input shaft. The driving end input shaft and the floating bearing seat are coaxially arranged.

[0022] Further, the bottom plate driving mechanism includes a guide rail slider mechanism, a lead screw nut mechanism and a bottom plate driving motor provided on the mounting base. The guide rail of the guide rail slider mechanism is distributed in the Z direction. The slider is connected to the mounting bottom plate. The nut of the lead screw nut mechanism is connected to the mounting bottom plate. The output end of the bottom plate driving motor is connected to the lead screw of the lead screw nut mechanism.

[0023] Further, a speed reducer is provided between the lead screw of the lead screw nut mechanism and the output end of the bottom plate driving motor.

[0024] Further, the top plate driving mechanism includes a lifting cylinder provided on the mounting bottom plate. The lifting cylinder is distributed in the Z direction.

[0025] Further, the locking mechanism includes a pneumatic disc brake provided on the driving bearing seat. A clamping disc is provided inside the pneumatic disc brake. The clamping disc is sleeved outside the driving input shaft.

[0026] The beneficial effects of the present invention are as follows:

[0027] (1) Place the transfer plate upside down on the assembly station, then assemble the reducer to be tested on the transfer plate, then the transfer plate is clamped on the flip clamp, then the flip clamp rotates the transfer plate 180°, and the transfer plate is placed on the assembly conveyor chain. The assembly conveyor chain transports the transfer plate to the lifting and avoidance station, and the lifting and avoidance conveyor chain transports the transfer plate to the test station. The transfer plate contacts the limit block, the test conveyor chain stops rotating, the test lifting motor drives the mounting frame to descend, the upper and lower toothed discs are clamped, and because of the triangular teeth between the two, they are convenient for smooth clamping. The output end of the detection tooling contacts the floating output shaft, and because of the conical surface between the two, they are convenient for automatic alignment. Then the test conveyor chain and the transfer plate are disengaged, and the transfer plate is placed on the lower toothed disc. Then the bottom plate driving motor drives the mounting bottom plate to descend to a certain position, and the cylinder drives The top plate and the input shaft at the drive end are installed to descend, and the input shaft at the drive end is connected to the input end of the reducer to be tested. The input end driving motor drives the reducer to be tested to rotate. The reducer to be tested drives the floating output shaft to rotate by detecting the friction between the output end of the tooling and the floating output shaft. Then, the torque test is performed through the input end grating, the torque sensor and the output end circular grating to detect the return error and the transmission error. When the stiffness needs to be detected, when a certain surface at the end of the output cylinder is facing the photoelectric reflection switch, the input end driving motor stops, and the cylinder is pushed to drive the U-shaped claw to move, so that the U-shaped claw clamps the output cylinder, and then the locking mechanism locks the driving input shaft. The stiffness motor drives the loading seat and the push rod to move in the Y direction, and the arm rotates around the shaft. The loading torque is calculated by pulling the pressure sensor and the length of the arm, and the hysteresis curve is drawn through the relationship between the torque and the output end angle. After completing the test of one position, the U-shaped clamp withdraws, the locking mechanism is released, and the second surface is found by rotating the input end drive motor. Similarly, the stiffness curves of the four positions of the reducer can be tested. After the test is completed, the lifting cylinder drives the installation top plate to rise, drives the input shaft and the reducer to disengage, and the bottom plate drive motor drives the installation bottom plate to rise. The test lifting mechanism drives the test fixing frame and the test conveying chain to rise, and the transfer plate and the test conveying chain contact. Then the transfer plate and the lower toothed plate are disengaged. When the test conveying chain reaches the same height as the lifting and avoiding conveying chain, the test conveying chain transports the transfer plate that has been tested to the assembly station through the lifting and avoiding conveying chain, and the reducer can be removed from the transfer plate. The present invention improves the detection efficiency of the reducer through the transportation and automatic alignment of multiple stations;

[0028] (2) During the process of detecting the speed reducer, the next transfer disk is driven to the position where the lifting mechanism is located in the same way. When the detected transfer disk enters the lifting and avoiding conveyor chain, the lifting mechanism lifts the next transfer disk. The detected transfer disk passes under the next transfer disk and returns to the assembly station. Then, the lifting mechanism drives the next transfer disk to descend to the lifting and avoiding conveyor chain, and the lifting and avoiding conveyor chain reverses to convey the next transfer disk to the test station, thus completing the detection of the speed reducer on the next transfer disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is the front view structural schematic diagram of the present invention;

[0030] Figure 2 is the left view structural schematic diagram of the present invention;

[0031] Figure 3 is the top view structural schematic diagram of the present invention;

[0032] Figure 4 is the three-dimensional structural schematic diagram of the present invention;

[0033] Reference Numerals: 1 - base, 2 - vertical seat, 3 - counterweight, 4 - bottom plate driving motor, 5 - mounting bottom plate, 6 - input end driving motor, 7 - mounting top plate, 8 - spline connecting shaft, 9 - torque sensor, 10 - driving bearing seat, 11 - input end circular grating, 12 - pneumatic butterfly brake, 13 - clamping disk, 14 - test lifting motor, 15 - speed reducer, 16 - transfer disk, 17 - limiting block, 18 - upper tooth disk, 19 - output cylinder, 20 - output end circular grating, 21 - floating bearing seat, 22 - pushing cylinder, 23 - arm rod, 24 - rotating shaft, 25 - push rod, 26 - moving seat, 27 - tension and compression sensor, 28 - loading seat, 29 - stiffness motor, 30 - assembly motor, 31 - frame, 32 - turning shaft, 33 - turning clamp block, 34 - lifting rack, 35 - lifting plate, 36 - lifting gear, 37 - lifting cylinder, 38 - lower tooth disk. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0036] Example 1

[0037] like Figures 1 to 4 As shown, the present embodiment provides a reducer offline test bench, including a frame 31 for transporting a test tool, the test tool is installed with a reducer 15, and the frame 31 is provided with an assembly station, a lifting and avoiding station, a test station and a mounting seat in sequence along the Y direction, the assembly station transports the test tool to the lifting station, the lifting station transports the test tool to be tested to the testing station, avoids the test tool that has been tested, and transports the test tool that has been tested to the assembly station, the testing station tests the test tool to be tested and transports the test tool that has been tested to the lifting and avoiding station, and the mounting seat is provided with a driving mechanism for driving the input end of the reducer 15 and a locking mechanism for locking the driving mechanism.

[0038] Preferably, the detection tooling comprises a transfer plate 16, on which a reducer 15 is mounted, and the axial direction of the reducer 15 is distributed along the Z direction.

[0039] Specifically, a lower toothed plate 38 is provided on the mounting seat, and a matching upper toothed plate 18 is provided at the lower end of the transfer plate 16. The lower toothed plate 38 and the upper toothed plate 18 include an annular ring and triangular teeth circumferentially arranged on the annular ring. The triangular teeth of the lower toothed plate 38 are located at the upper end of the annular ring, and the triangular teeth of the upper toothed plate 18 are located at the lower end of the annular ring.

[0040] Preferably, the assembly station includes two assembly conveyor chains arranged on both sides of the frame 31 along the X direction and an assembly drive mechanism that drives the two assembly conveyor chains to move synchronously. The assembly conveyor chains are distributed along the Y direction, and a flipping mechanism for flipping the detection tooling is provided between the two assembly conveyor chains.

[0041] Specifically, the assembly drive mechanism includes an assembly motor 30, and the output end of the assembly motor 30 is connected to the driving sprocket of the assembly conveying chain.

[0042] Preferably, the flip mechanism includes two flip fixing seats, the two flip fixing seats are arranged between the two assembly conveyor chains, a flip shaft 3224 distributed along the X direction is arranged between the two flip fixing seats, and two flip clamps 33 forming U-shaped clamps are sleeved on the flip shaft 3224.

[0043] Specifically, the flip shaft 3224 is driven by a flip motor, and the flip motor and the flip shaft 3224 are driven by a chain.

[0044] Preferably, the lifting and avoidance station includes a lifting mechanism of two lifting detection tooling arranged on both sides of the frame 31 along the X direction, two avoidance conveying chains located between the two lifting mechanisms, and a lifting and avoidance driving mechanism that drives the lifting and avoidance conveying chains to move synchronously, and the lifting and avoidance conveying chains are distributed along the Y direction.

[0045] Specifically, the lifting mechanism includes a lifting cylinder 37 distributed along the Z direction and a lifting plate 35 arranged on the lifting cylinder 37, the inner side of the lifting plate 35 is provided with a lifting ear, and the transfer plate 16 is provided with a notch matching the lifting ear, and the lifting ear is located outside the avoidance conveying chain.

[0046] Preferably, a lifting rack 34 is provided at the lower end of the lifting plate 35, and the lifting rack 34 is connected to the frame 31 through a guide rail slider mechanism. A lifting gear 36 is provided on one side of the lifting rack 34 along the Y direction, and the lifting gears 36 on both sides of the frame 31 along the X direction are connected through a synchronous shaft.

[0047] Preferably, the test station includes a test fixture arranged on a mounting seat and a test lifting mechanism for driving the test fixture to move along the Z direction, two test conveying chains and a test driving mechanism for driving the test conveying chains to move synchronously are arranged on both sides of the test fixture along the X direction, the test conveying chains are distributed along the Y direction, and a limit block 17 for limiting the position of the detection tooling is provided on the mounting seat.

[0048] Specifically, the test lifting mechanism includes a guide rail and slider mechanism, a screw nut mechanism and a test lifting motor 14, the guide rails of the guide rail and slider mechanism are distributed along the Z direction, the slider is connected to the test fixed frame, the nut of the screw nut mechanism is connected to the test fixed frame, and the output end of the test lifting motor 14 is connected to the screw of the screw nut mechanism.

[0049] Preferably, a mounting frame is provided on the mounting seat, and the mounting frame is located below the two test conveyor chains. The mounting frame is provided with an output end connecting mechanism connected to the output end of the reducer 15.

[0050] Specifically, the output end connection mechanism includes a floating bearing seat 21 arranged on the mounting frame, and the floating bearing seat 21 is provided with a floating output shaft and an output end circular grating 20. The detection tooling includes an output tube 19 sleeved on the outside of the output end of the reducer 15, and the output tube 19 and the output end of the reducer 15 are fixed by bolts. The output tube 19 passes through the floating output shaft, and the outer side of the output tube 19 and the inner side of the floating output shaft form matching conical surfaces.

[0051] Preferably, a stiffness mounting plate is provided on the mounting base, a stiffness motor 29 is provided on the stiffness mounting plate, the output end of the stiffness motor 29 is connected to a lead screw nut mechanism distributed along the Y direction, the lead screw of the lead screw nut mechanism is sequentially connected to a moving seat 26 and a tension and compression sensor 27, a loading seat 28 is provided on the tension and compression sensor 27, a push rod 25 distributed along the Y direction is provided on the loading seat 28, an arm rod 23 distributed along the X direction is clamped on the push rod 25, one end of the arm rod 23 away from the push rod 25 is rotatably connected to the stiffness mounting plate through a rotating shaft 24, a pushing cylinder 22 distributed along the X direction is provided on the arm rod 23, and a U-shaped claw for clamping the output cylinder 19 is provided on the pushing cylinder 22.

[0052] Specifically, four faces are provided at the end of the output cylinder 19, a photoelectric reflection switch is provided on the mounting base, the photoelectric reflection switch and the pushing cylinder 22 are coaxially arranged, when the output cylinder 19 rotates, when a certain face faces the photoelectric reflection switch, the rotation stops, and the pushing cylinder 22 pushes the U-shaped claw to clamp the output cylinder 19.

[0053] Preferably, a mounting base plate 5 is provided on the mounting base and a base plate driving mechanism for driving the mounting base plate 5 to move along the Z direction, a mounting top plate 7 is provided on the mounting base plate 5 and a top plate driving mechanism for driving the mounting top plate 7 to move along the Z direction, the driving mechanism includes an input end driving motor 6 provided on the mounting base plate 5, a spline connecting shaft 8, a torque sensor 9 and a driving bearing seat 10 are sequentially connected along the Z direction through a coupling on the mounting top plate 7, the spline connecting shaft 8 and the input end driving motor 6 are connected through a coupling, a driving input shaft is provided on the driving bearing seat 10, an input end circular grating 11 is provided on the driving input shaft, and the driving end input shaft and the floating bearing seat 21 are coaxially arranged.

[0054] Preferably, the base plate driving mechanism includes a guide rail slider mechanism, a lead screw nut mechanism and a base plate driving motor 4 provided on the mounting base, the guide rail of the guide rail slider mechanism is distributed along the Z direction, the slider is connected to the mounting base plate 5, the nut of the lead screw nut mechanism is connected to the mounting base plate 5, and the output end of the base plate driving motor 4 is connected to the lead screw of the lead screw nut mechanism.

[0055] Specifically, a speed reducer is provided between the lead screw of the lead screw nut mechanism and the output end of the base plate driving motor 4.

[0056] Preferably, the top plate driving mechanism includes a lifting cylinder provided on the mounting base plate 5, and the lifting cylinder is distributed along the Z direction.

[0057] Specifically, the locking mechanism includes a pneumatic disc brake 12 provided on the driving bearing seat 10, a clamping disc 13 is provided inside the pneumatic disc brake 12, and the clamping disc 13 is sleeved outside the driving input shaft.

[0058] Working principle: Place the transfer plate 16 upside down on the assembly station, then assemble the reducer 15 to be tested on the transfer plate 16. After that, the transfer plate 16 is clamped on the flipping clamp block 33, and then the flipping clamp block 33 rotates the transfer plate 16 by 180°. The transfer plate 16 is placed upright on the assembly conveyor chain. The assembly conveyor chain transports the transfer plate 16 to the lifting and avoidance station. The lifting and avoidance conveyor chain transports the transfer plate 16 to the test station. The transfer plate 16 contacts the limit block 17, and the test conveyor chain stops rotating. The test lifting motor 14 drives the mounting frame to descend. The upper tooth disc 18 and the lower tooth disc 38 are clamped tightly. Since there are triangular teeth between the two, it is convenient for them to be clamped tightly. The output end of the detection tooling contacts the floating output shaft. Since there is a conical surface between the two, it is convenient for automatic alignment. Then the test conveyor chain is separated from the transfer plate 16, and the transfer plate 16 is placed on the lower tooth disc 38. After that, the bottom plate drive motor 4 drives the mounting bottom plate 5 to descend to a certain position. The air cylinder drives the mounting top plate 7 and the drive end input shaft to descend. The drive end input shaft is connected to the input end of the reducer 15 to be tested. The input end drive motor 6 drives the reducer 15 to be tested to rotate. The reducer 15 to be tested drives the floating output shaft to rotate through the frictional force between the output end of the detection tooling and the floating output shaft. Then, through the input end grating, the torque sensor 9 and the output end circular grating 20, torque testing is carried out to detect the return error and the transmission error. When the stiffness needs to be detected, when a certain surface at the end of the output cylinder 19 faces the photoelectric reflection switch, the input end drive motor 6 stops rotating. The pushing air cylinder 22 drives the U-shaped claw to move, so that the U-shaped claw clamps the output cylinder 19. Then the locking mechanism locks the drive input shaft. The stiffness motor 29 drives the loading seat 28 and the push rod 25 to move in the Y direction. The arm rod 23 rotates around the rotating shaft 24. The loading torque is calculated through the pull-pressure sensor 27 and the length of the arm rod 23. The hysteresis curve is drawn through the relationship between the torque and the output end angle. After the test of one position is completed, the U-shaped clamp withdraws, the locking mechanism is released, and the second surface is found by rotating the input end drive motor 6. And so on, the stiffness curves of 4 positions of the reducer 15 can be tested. After the detection is completed, the lifting air cylinder drives the mounting top plate 7 to rise. The drive input shaft is separated from the reducer 15. The bottom plate drive motor 4 drives the mounting bottom plate 5 to rise. The test lifting mechanism drives the test fixing frame and the test conveyor chain to rise. The transfer plate 16 contacts the test conveyor chain. Then the transfer plate 16 is separated from the lower tooth disc 38. When the test conveyor chain reaches the same height as the lifting and avoidance conveyor chain, the test conveyor chain transports the detected transfer plate 16 to the assembly station through the lifting and avoidance conveyor chain, and the reducer 15 can be removed from the transfer plate 16;

[0059] During the inspection of the reducer 15, the next transfer tray 16 is transported to the position of the lifting mechanism in the same way. When the inspected transfer tray 16 enters the lifting and avoiding conveying chain, the lifting mechanism lifts the next transfer tray 16, and the inspected transfer tray 16 passes under the next transfer tray 16 and returns to the assembly station. After that, the lifting mechanism drives the next transfer tray 16 down to the lifting and avoiding conveying chain, and the lifting and avoiding conveying chain is reversed to transport the next transfer tray 16 to the test station, thereby completing the inspection of the reducer 15 on the next transfer tray 16.

Claims

1. The reducer off-line test bench includes a frame (31) for transporting the detection tooling, and the detection tooling is installed with a reducer (15), and is characterized in that, On the frame (31), there are successively arranged an assembly station, a lifting and avoidance station, a testing station, and a mounting seat along the Y direction. The assembly station transports the inspection tooling to the lifting station. The lifting station transports the inspection tooling to be inspected to the testing station, avoids the inspected inspection tooling, and transports the inspected inspection tooling to the assembly station. The testing station inspects the inspection tooling to be inspected and transports the inspected inspection tooling to the lifting and avoidance station. On the mounting seat, there are a driving mechanism for driving the input end of the reduction gear (15) and a locking mechanism for locking the driving mechanism; The assembly station includes two assembly conveyor chains arranged on both sides of the frame (31) along the X direction and an assembly driving mechanism for driving the two assembly conveyor chains to move synchronously. The assembly conveyor chains are distributed along the Y direction. Between the two assembly conveyor chains, there is a turning mechanism for turning the inspection tooling; The turning mechanism includes two turning fixed seats arranged between the two assembly conveyor chains. Between the two turning fixed seats, there is a turning shaft (32) distributed along the X direction. On the turning shaft (32), there are sleeved two turning clamp blocks (33) forming a U-shaped clamp; The lifting and avoidance station includes two lifting mechanisms for lifting the inspection tooling arranged on both sides of the frame (31) along the X direction, two avoidance conveyor chains located between the two lifting mechanisms, and a lifting and avoidance driving mechanism for driving the lifting and avoidance conveyor chains to move synchronously. The lifting and avoidance conveyor chains are distributed along the Y direction; The testing station includes a testing fixed frame arranged on the mounting seat and a testing lifting mechanism for driving the testing fixed frame to move along the Z direction. On both sides of the testing fixed frame along the X direction, there are two testing conveyor chains and a testing driving mechanism for driving the testing conveyor chains to move synchronously. The testing conveyor chains are distributed along the Y direction. On the mounting seat, there is a limiting block (17) for limiting the inspection tooling; 2. The offline test bench for the speed reducer (15) according to claim 1, characterized in that, On the mounting seat, there is a mounting frame located below the two testing conveyor chains. On the mounting frame, there is an output end connecting mechanism for connecting the output end of the reduction gear (15); 3. The offline test bench for the speed reducer (15) according to claim 2, characterized in that, The output end connecting mechanism includes a floating bearing seat (21) arranged on the mounting frame. On the floating bearing seat (21), there are a floating output shaft and an output end circular grating (20). The inspection tooling includes an output cylinder (19) sleeved outside the output end of the reduction gear (15). The output cylinder (19) and the output end of the reduction gear (15) are fixed by bolts. The output cylinder (19) passes through the floating output shaft. A tapered surface is formed between the outside of the output cylinder (19) and the inside of the floating output shaft.

4. The offline test bench for the speed reducer (15) according to claim 2, characterized in that, A stiffness mounting plate is provided on the mounting base, and a stiffness motor (29) is provided on the stiffness mounting plate. The output end of the stiffness motor (29) is connected to a lead screw nut mechanism distributed along the Y direction. The lead screw of the lead screw nut mechanism is sequentially connected to a moving seat (26) and a tension-compression sensor (27). A loading seat (28) is provided on the tension-compression sensor (27), and a push rod (25) distributed along the Y direction is provided on the loading seat (28). An arm rod (23) distributed along the X direction is clamped on the push rod (25). One end of the arm rod (23) away from the push rod (25) is rotatably connected to the stiffness mounting plate through a rotating shaft (24). A push cylinder (22) distributed along the X direction is provided on the arm rod (23), and a U-shaped claw for clamping the output cylinder (19) is provided on the push cylinder (22).

5. The offline test bench for the speed reducer (15) according to claim 1, characterized in that, An installation bottom plate (5) and a bottom plate driving mechanism for driving the installation bottom plate (5) to move along the Z direction are provided on the mounting base. An installation top plate (7) and a top plate driving mechanism for driving the installation top plate (7) to move along the Z direction are provided on the installation bottom plate (5). The driving mechanism includes an input end driving motor (6) provided on the installation bottom plate (5). A spline connecting shaft (8), a torque sensor (9), and a driving bearing seat (10) are sequentially connected along the Z direction through a coupling on the installation top plate (7). The spline connecting shaft (8) is connected to the input end driving motor (6) through a coupling. A driving input shaft is provided on the driving bearing seat (10), and an input end circular grating (11) is provided on the driving input shaft. The driving input shaft and the floating bearing seat (21) are coaxially arranged.

6. The offline test bench for the speed reducer (15) according to claim 5, characterized in that, The locking mechanism includes a pneumatic butterfly brake (12) provided on the driving bearing seat (10). A clamping disc (13) is provided inside the pneumatic butterfly brake (12), and the clamping disc (13) is sleeved outside the driving input shaft.

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