Method for transmission detection for an electric shovel

Abstract

The present application relates to transmission method and process for electric motor scraper, executes the following steps; first, the output shaft of motor is connected with the transfer case through the shaft coupling; then, the transmission shaft one end is connected with the gearbox; secondly, the pump station is respectively butt joint in the power take-off; again, the transfer case is connected with the transmission shaft the other end transmission; after that, the gear shift pressure oil pipeline is directly connected with the gearbox; again, the gearbox is connected with the radiator, pump station and check valve through the pipeline; the present application has the advantages of reasonable design, compact structure and convenient use.

Description

Technical Field

[0001] This invention relates to a transmission method and process for electric loaders. Background Technology

[0002] With the development of new energy sources, trackless equipment in underground mines has also entered a period of development driven by new energy. Compared to traditional diesel loaders, the main changes in the transmission system of underground battery-powered loaders are the replacement of the engine with an electric motor and the elimination of the torque converter, with the motor directly connected to the gearbox. The advantages are faster and more sensitive response. However, this also brings two problems: previously, the hydraulic oil pump and cooling oil pump were mounted on the torque converter; with the torque converter removed, there is no place to install the oil pumps. Furthermore, the motor is a speed-regulating motor; during shoveling, due to the excessive traction required, the motor may stall. If the motor stops rotating, the pressure oil required for gearbox shifting cannot be provided, causing shifting to fail. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a transmission method and process for an electric shovel loader.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0005] A transmission method for an electric shovel loader comprises the following steps: First, the output shaft of the motor is connected to the transfer case via a coupling; then, one end of the drive shaft is connected to the gearbox; second, the power take-off ports are connected to the pump station; third, the transfer case is connected to the other end of the drive shaft; then, the shift pressure oil line is directly connected to the gearbox; finally, the gearbox is connected to the radiator, the pump station, and the check valve via pipelines.

[0006] When in use, when the motor stalls and stops rotating, the pressure oil stored in the accumulator provides pressure for the gearbox to shift gears, while the one-way valve prevents the pressure oil in the accumulator from returning to the shift pressure oil line.

[0007] A transmission testing process for an electric loader includes the following steps:

[0008] S1, The workpiece input conveyor belt group sends the workpiece to be tested into the workpiece stage assembly;

[0009] S2, the workpiece platform assembly reverses direction and transfers the test piece for testing; during testing, the pipe joint is connected to the test piece pipe for testing, the valve assembly is started, and the pump station test assembly is turned on for testing; after testing, the reversing assembly assembly transfers the test piece to ninety degrees.

[0010] S3, the workpiece output conveyor belt group sends out the test piece.

[0011] As a further improvement to the above technical solution:

[0012] In S1, firstly, the position of the first layer positioning baffle is adjusted according to the workpiece to be inspected; then, the workpiece output conveyor belt group sends the workpiece to be inspected to the first feeding station.

[0013] In S2, S2.1, the test piece is fed from the first infeed station along the CO path into the central alternating station; S2.2, the test is performed at the central alternating station; S2.3, the test piece is output along the OB path.

[0014] In S2, the drive rotating head drives the driven upright to rotate via the U-shaped lever, thereby causing the horizontal swing rod to move the AOB traveling seat and COD support in the corresponding AOB channel and COD channel; when the AOB traveling seat and COD support pass through point O, the electromagnetic part passes through point O through electromagnetic attraction and repulsion or the electromagnetic rod pushes it.

[0015] In S3, firstly, the object to be tested is sent to the output process extension board; then, the output long conveyor belt and the output end conveyor belt output the object to be tested.

[0016] In S2.1, firstly, after the COD support returns along OC to open the input support plate, it continues to move away from the first feeding station, causing the input support plate to separate from the COD support and then be reset by the torsion spring force. Then, the workpiece to be tested is fed in through the workpiece input conveyor belt and positioned on the upper surface of the input support plate with the assistance of a robot. Secondly, the COD support moves forward along CO, and the front fork of the COD support enters the upper recess on the upper surface of the input support plate and lifts the workpiece to be tested and moves forward to O. Then, the COD support pushes the input support plate in the opposite direction to swing open, sending the workpiece to be tested to O, and achieving side positioning through the central COD spring column. The COD hinge reset baffle is resisted and then swings. The COD support moves forward to end D through the lower part of the part to be tested.

[0017] In S2.2, during testing, the matching top pressure plug or hydraulic fitting is connected to the corresponding test piece via a lifting robotic arm; hydraulic circuit testing is performed through the pipe joints.

[0018] In S2.3, firstly, the upper part of the AOB traveling seat moves along the AO direction, and pushes the workpiece to be tested at the center alternating station onto the lower part of the AOB baffle at the AOB output station along the OB direction on the auxiliary process tray via the AOB direction reset baffle; then, the COD tray moves along the DOC direction; and finally, the upper part of the AOB traveling seat moves along the BOA direction.

[0019] This invention is reasonably designed, low in cost, sturdy and durable, safe and reliable, simple to operate, time-saving and labor-saving, cost-saving, compact in structure and easy to use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the schematic diagram of the use structure of the present application.

[0021] Figure 2 is the schematic diagram of the detection structure of the present application.

[0022] Figure 3 is the schematic diagram of the detection bottom structure of the present application.

[0023] Figure 4 is the schematic diagram of the pump station structure of the present application.

[0024] Figure 5 is the schematic diagram of the use structure of the turning part of the present application.

[0025] Figure 6 is the schematic diagram of the use structure of the turning part of the present application. Figure 5 is the schematic diagram of the use structure of the turning part of the present application.

[0026] Wherein: 1, motor; 2, shaft coupling; 3, transfer case; 4, hydraulic oil pump; 5, cooling oil pump; 6, transmission shaft; 7, gearbox; 8, filter; 9, pressure regulating valve; 10, gear shift pressure oil pipeline; 11, check valve; 12, accumulator; 13, radiator; 14, pump station system for testing; 15, workpiece loading platform assembly; 16, workpiece input conveyor belt group; 17, workpiece output conveyor belt group; 18, turning assembly group; 19, driving device; 20, pump station testing assembly; 21, valve assembly; 22, pipeline joint; 23, platform; 24, AOB channel; 25, COD channel; 26, cross slot; 27, end face door; 28, driving rotary head; 29, U-shaped handle; 30, driven vertical rod; 31, horizontal swing rod; 32, electromagnetic part; 33, AOB hinged seat; 34, COD hinged seat; 35, AOB walking seat; 36, COD walking seat; 37, first feeding station; 38, COD support seat; 39, COD hinged reset baffle; 40, auxiliary process support plate; 41, first layer positioning baffle; 42, center alternating station; 43, input torsional spring shaft; 44, input support vertical plate; 45, center COD direction terminal baffle; 46, center COD spring column; 47, center COD direction hinged grid plate; 48, top of center COD grid plate; 49, AOB direction hinged grid plate; 50, upper part of AOB walking seat; 51, AOB direction reset baffle; 52, AOB output station; 53, lower part of AOB baffle; 54, output process extension plate; 55, output end conveyor belt; 56, output long conveyor belt; 57, lifting mechanical arm; 58, top down plug. DETAILED DESCRIPTION

[0027] As Figures 1-6As shown, the underground battery backhoe loader transmission system of the embodiment comprises a motor 1, a coupling 2, a transfer case 3, a hydraulic oil pump 4, a cooling oil pump 5, a transmission shaft 6, a gearbox 7, a filter 8, a pressure regulating valve 9, a gear shifting pressure oil pipeline 10, a check valve 11, an accumulator 12 and a radiator 13.

[0028] The output shaft of the motor 1 is drivingly connected with the transfer case 3 through the coupling 2; one end of the transmission shaft 6 is connected with the gearbox 7; two power take-off ports are reserved on the transfer case 3 to respectively butt joint with pump stations; the transfer case 3 is drivingly connected with the other end of the transmission shaft 6;

[0029] The gear shifting pressure oil pipeline 10 is directly connected with the gearbox 7; the gearbox 7 is connected with the pump stations and the check valve 11 through pipelines;

[0030] The gear shifting pressure oil pipeline 10 is arranged between the pressure regulating valve 9 and the check valve 11.

[0031] The accumulator 12 is connected with the gearbox 7 and the check valve 11 in parallel;

[0032] When the motor 1 is locked-rotor, i.e. stops rotating, the accumulator 12 can store pressure oil to provide pressure for gear shifting of the gearbox 7, and the check valve 11 controls the flow direction of the pressure oil in the accumulator 12.

[0033] The filter 8 is arranged between the pressure regulating valve 9 and the pump stations;

[0034] The pump stations comprise the cooling oil pump 5 and the hydraulic oil pump 4.

[0035] The testing device of the underground battery backhoe loader transmission system of the embodiment is used for testing the hydrodynamic force of the transmission system; the device comprises

[0036] The pump station system 14 has a pump station testing assembly 20, a valve assembly 21 and a pipeline joint 22 connected in sequence, and the pipeline joint 22 is used for connecting with the pipeline of the tested piece for testing;

[0037] The workpiece loading platform assembly 15 has a loading platform 23 and is used for changing the direction of the tested piece and transferring the tested piece;

[0038] The workpiece input conveying belt group 16 is used for feeding the tested piece for testing;

[0039] The workpiece output conveying belt group 17 is used for feeding out the tested piece;

[0040] The direction changing assembly 18 is arranged on the workpiece loading platform assembly 15 and is used for conveying the tested piece by 90 degrees.

[0041] The direction changing assembly 18 comprises

[0042] The carrier platform 23 has an AOB channel 24 and a COD channel 25 intersecting at O, and the AOB channel 24 and the COD channel 25 have cross grooves 26;

[0043] The end faces of the AOB channel 24 and the COD channel 25 are provided with end face doors 27, and the lower end of the carrier platform 23 is provided with a driving device 19;

[0044] The driving device 19 comprises a driving rotary head 28, and the driving rotary head 28 is connected with a U-shaped handle 29 at the end thereof;

[0045] The workpiece carrier assembly 15 comprises an AOB walking seat 35 walking in the AOB channel 24 and a COD walking seat 36 walking in the COD channel 25;

[0046] The AOB walking seat 35 is provided with an AOB hinged seat 33 at the lower part and an AOB walking seat upper part 50 at the upper part, the COD walking seat 36 is provided with a COD hinged seat 34 at the lower part and a COD holder 38 at the upper part, and a horizontal swing rod 31 is arranged in the COD hinged seat 34 and the AOB hinged seat 33, and a driven vertical rod 30 is arranged at the end of the horizontal swing rod 31 and located in the U-shaped handle 29;

[0047] The electromagnetic part 32 is arranged at the lower part of the O intersection of the carrier platform 23;

[0048] The electromagnetic part 32 is arranged at the four corners of the lower part of the O intersection, and the electromagnetic part 32 is an electromagnetic push rod or an electromagnetic suction seat;

[0049] A first feeding station 37 is arranged at the entrance of the AOB channel 24,

[0050] An AOB output station 52 is arranged at the exit of the COD channel 25,

[0051] A central alternating station 42 is arranged at the O intersection,

[0052] The COD hinged reset baffle 39 is arranged on the COD holder 38 and arranged in the AOB direction,

[0053] Auxiliary process supporting plates 40 are arranged on both sides of the AOB channel 24 and on both sides of the COD channel 25, and the first feeding station 37 is provided with a first layer positioning baffle 41,

[0054] An input support vertical plate 44 is arranged at the output end of the workpiece input conveying belt group 16 arranged in the AOB direction, the upper end of an input torsion spring shaft 43 is hinged in the middle of the input support vertical plate 44, the input torsion spring shaft 43 is close to the output end of the workpiece input conveying belt group 16, the output end of the input support vertical plate 44 is used to contact the COD walking seat 36 and then swing laterally to overcome the torsion spring force, the lower surface of the test piece is used to contact the upper surface of the input support vertical plate 44; the input support vertical plate 44 has an upper notch, and the COD support 38 has a plug passing through the upper notch;

[0055] A central COD direction terminal baffle 45 is arranged at the side of the point D where the central alternating station 42 is located, and a central COD spring column 46 for contacting the test piece is arranged on the central COD direction terminal baffle 45;

[0056] A central COD direction hinged grid plate 47 is arranged in the AO section, and a central COD grid plate upper top 48 is arranged on the upper surface of the central COD direction hinged grid plate 47; an OB direction hinged grid plate 49 identical in structure to the central COD direction hinged grid plate 47 is arranged in the BO section;

[0057] An AOB direction reset baffle 51 is arranged above the front end of the AOB walking seat upper portion 50; an AOB baffle lower portion plate 53 is hinged at the lower end of the AOB direction reset baffle 51, and the stroke of the AOB walking seat upper portion 50 is smaller than the stroke of the COD support 38;

[0058] An output process extension plate 54 is arranged from the output side of the OB direction hinged grid plate 49 to the AOB output station 52;

[0059] The workpiece output conveying belt group 17 includes an output long conveying belt 56 arranged outside the output process extension plate 54, and an output end conveying belt 55 is arranged outside the output process extension plate 54;

[0060] The central alternating station 42 is matched with a lifting mechanical arm 57 and a matched top down plug 58;

[0061] The central alternating station 42 corresponds to the pipeline joint 22;

[0062] The test piece includes a gearbox 7 and / or a radiator 13.

[0063] The underground battery scraper transmission method of the embodiment performs the following steps; first, the output shaft of the motor 1 is connected to the transfer case 3 through the shaft coupling 2; then, one end of the transmission shaft 6 is connected to the gearbox 7; second, the pump station is respectively docked at the power take-off port; third, the transfer case 3 is connected to the other end of the transmission shaft 6; then, the gear shift pressure oil pipeline 10 is directly connected to the gearbox 7; then, the gearbox 7 is connected to the radiator 13, the pump station and the one-way valve 11 through the pipeline;

[0064] In use, when the motor 1 is locked and stops rotating, the pressure oil stored in the accumulator 12 provides pressure for the gear shifting of the gearbox 7, and the one-way valve 11 prevents the pressure oil in the accumulator 12 from returning to the gear shifting pressure oil pipeline 10.

[0065] The detection process of the underground battery backhoe loader transmission system of the embodiment performs the following steps,

[0066] S1, the workpiece input conveyor belt group 16 sends the workpiece to be tested to the workpiece loading platform assembly 15.

[0067] S2, the workpiece loading platform assembly 15 changes direction and transfers the workpiece to be tested and performs testing; during testing, the pipeline joint 22 is connected to the workpiece to be tested for testing, the valve assembly 21 is started, and the pump station testing assembly 20 is connected for testing; after testing, the ninety-degree transfer assembly 18 transfers the workpiece to be tested by ninety degrees.

[0068] S3, the workpiece output conveyor belt group 17 sends the tested workpiece.

[0069] In S1, first, according to the workpiece to be tested, the position of the first layer positioning baffle 41 is adjusted; then, the workpiece output conveyor belt group 17 sends the workpiece to be tested to the first feeding station 37.

[0070] In S2, S2.1, the workpiece to be tested is sent to the central alternating station 42 along the CO path from the first feeding station 37; S2.2, testing is performed at the central alternating station 42; S2.3, the workpiece to be tested is output along the OB.

[0071] In S2, the rotating head 28 drives the driven vertical rod 30 to rotate through the U-shaped handle 29, so that the horizontal swing rod 31 swings the AOB walking seat 35 and the COD support 38 in the corresponding AOB channel 24 and COD channel 25; wherein, when the AOB walking seat 35 and the COD support 38 pass through the O point, the electromagnetic part 32 passes through the O point by electromagnetic attraction and repulsion or electromagnetic rod pushing;

[0072] In S3, first, the workpiece to be tested is sent to the output process extension plate 54; then, the output long conveyor belt 56 and the output end conveyor belt 55 output the workpiece to be tested.

[0073] In S2.1, first, the COD holder 38 moves along OC to return the input support stand 44 to open, and then continues to move away from the first feeding station 37, so that the input support stand 44 is separated from the COD holder 38 and then resets by the torsion spring force; then, the detected piece is fed by the workpiece input conveyor belt group 16 and is positioned on the upper surface of the input support stand 44 by the mechanical hand; secondly, the COD holder 38 moves along CO, the front end of the COD holder 38 enters the upper notch on the upper surface of the input support stand 44 and lifts the detected piece and moves to O, and then the COD holder 38 reversely pushes the input support stand 44 to swing open, sends the detected piece to O, and realizes side positioning by the center COD spring column 46, the COD hinged reset baffle 39 is blocked and then swings, and the COD holder 38 moves forward to the D end through the lower part of the detected part;

[0074] In S2.2, when testing, the matched top compression plug 58 or hydraulic pipe fitting is connected to the corresponding detected piece by the lifting mechanical arm 57; the pipeline joint 22 is used for liquid path test;

[0075] In S2.3, first, the AOB walking seat upper part 50 moves along the AO direction, and the center alternating station 42 is pushed to the AOB output station 52 by the AOB direction reset baffle 51 along the OB direction on the auxiliary process support plate 40; then, the COD holder 38 moves along the DOC direction; again, the AOB walking seat upper part 50 moves along the BOA direction.

[0076] The pump station test assembly 20 carries out pressure test, the valve assembly 21 has the conventional safety valve, the reversing valve and the like, the pipeline joint 22 can be the threaded joint, the park joint and the like, the platform 23 can be the conventional workbench, the AOB channel 24, the COD channel 25 realize the reversing drive, the cross slot 26 realizes the orientation, the slider can be linear sliding, the end has the chamfer, realizes the slider smoothly through O point, the end face door 27 is in the end, thereby realizing the quick dismounting, through the drive rotary head 28, the U-shaped handle 29, the driven vertical rod 30, the horizontal swing rod 31 swing setting, thereby satisfying the driven rod non-circular track requirement, through the electromagnetic part 32 realizes the auxiliary, avoids the jamming, can be the electromagnetic swing rod, the AOB hinged seat 33, the COD hinged seat 34, the COD support 38, the COD hinged reset baffle 39, the AOB walking seat 35, the COD walking seat 36 thereby realize the linkage control, the first feeding station 37 realizes the input, the auxiliary process support plate 40, thereby realizes the load bearing to the workpiece weight, the first layer positioning baffle 41 position is adjustable, the center alternating station 42 carries out the reversing and test, the input torsion spring shaft 43, according to the column bears the principle of thousand jin, the input support vertical plate 44 of the present application is cleverly used to realize the auxiliary support and makes the workpiece guide input, thereby the effect is better, the center COD direction terminal baffle 45, the center COD spring column 46 position is adjustable, the center COD direction hinged grid plate 47 same reason, realizes the orientation, the center COD grid plate top 48 realizes the load bearing workpiece, the OB direction hinged grid plate 49 same reason, the AOB walking seat upper portion 50 realizes the load bearing, realizes the support, the AOB direction reset baffle 51 is reset through the torsion spring, the AOB output station 52 works, the AOB baffle lower portion plate 53 realizes the one-way blocking, the output process extension plate 54 realizes the output end conveying belt 55, the output long conveying belt 56 realizes the output, the lifting mechanical arm 57 controls the installation of the bottom plug 58 and the like.

[0077] For the problems of the present application, such as Figure 1As shown, first, the output shaft of the motor 1 is drivingly connected with the transfer case 3 through the coupling 2; then, the transmission shaft 6 is connected with the gearbox 7 at one end; two power take-off ports are reserved on the transfer case 3; secondly, the power take-off ports are respectively connected with the pump station, and the pump station comprises the cooling oil pump 5 and the hydraulic oil pump 4; thirdly, the transfer case 3 is drivingly connected with the transmission shaft 6 at the other end; then, the gear shift pressure oil pipeline 10 is directly connected with the gearbox 7; after that, the gearbox 7 is connected with the radiator 13, the pump station and the check valve 11 through the pipelines;

[0078] A filter 8 is arranged between the pressure regulating valve 9 and the pump station;

[0079] The gear shift pressure oil pipeline 10 is arranged between the pressure regulating valve 9 and the check valve 11; and the accumulator 12 is connected with the gearbox 7 and the check valve 11 in parallel;

[0080] When the motor 1 is blocked and stops rotating, the accumulator 12 can store the pressure oil to provide pressure for the gear shift of the gearbox 7, and the check valve 11 ensures that the pressure oil in the accumulator 12 cannot be leaked back to the gear shift pressure oil pipeline 10. Through the design of the above transmission system, the installation problem of the oil pump and the gear shift problem when the motor is blocked are solved without increasing too much cost.

[0081] The present application is fully described in order to make the disclosure more clear, and the prior art is not listed one by one.

[0082] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; as it is obvious for those skilled in the art to combine the technical solutions of the present application. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application. The technical contents not described in detail in the present application are all known technologies.

Claims

1. A transmission detection method for an electric shovel loader, characterized in that: in, Used for testing the hydraulic forces of transmission systems; The components to be tested include the gearbox (7) and / or the radiator (13); With the aid of equipment, the equipment includes The test pump station system (14) has a pump station test component (20), a valve component (21) and a pipe connector (22) connected in sequence by pipes. The pipe connector (22) is used to connect to the test piece for testing. The workpiece stage assembly (15) has a stage platform (23) for reversing the direction of the test piece; The workpiece input conveyor belt group (16) is used to feed the workpiece to be tested for testing; Workpiece output conveyor belt group (17) is used for sending out test pieces; The reversible assembly component (18) is set on the workpiece stage assembly (15) and is used to transfer the test piece at a 90-degree angle. Variable direction assembly component (18), including The platform (23) has an AOB channel (24) and a COD channel (25) that intersect at point O; the AOB channel (24) and the COD channel (25) have cross grooves (26). The AOB channel (24) and COD channel (25) have end face gates (27) at their ends, and a drive device (19) is provided at the lower end of the platform (23). The drive unit (19) includes a drive rotating head (28), and a U-shaped lever (29) is connected to the end of the drive rotating head (28). Perform the following steps, S1, The workpiece input conveyor belt group (16) sends the workpiece to be tested into the workpiece stage assembly (15). Workpiece stage assembly (15); The workpiece stage assembly (15) includes an AOB traveler (35) that travels in the AOB channel (24) and a COD traveler (36) that travels in the COD channel (25). S2, the workpiece platform assembly (15) reverses direction and transfers the workpiece to be tested and performs the test; during the test, the pipe joint (22) is connected to the pipe of the workpiece to be tested for testing, the valve assembly (21) is started, and the pump station test assembly (20) is turned on for testing; after the test, the reversing assembly assembly (18) transfers the workpiece to be tested at a 90-degree angle. S3, the workpiece output conveyor belt group (17) sends out the test piece; Among them, the first feeding station (37) is set at the entrance of the AOB channel (24). An electromagnetic unit (32) is provided at the lower part of the cross intersection at point O of the platform (23). Auxiliary process trays (40) are provided on both sides of the AOB channel (24) and on both sides of the COD channel (25), and a positioning baffle (41) located on the first layer is provided at the first feeding station (37). A central alternating workstation (42) is set at the crossroads at point O. The COD travel seat (36) has a COD hinge seat (34) at the bottom and a COD support seat (38) at the top; a horizontal swing rod (31) is provided in the COD hinge seat (34) and the AOB hinge seat (33), and a driven upright rod (30) located in the U-shaped lever (29) is provided at the end of the horizontal swing rod (31). In S1, firstly, the position of the first layer positioning baffle (41) is adjusted according to the workpiece to be inspected; then, the workpiece output conveyor belt group (17) sends the workpiece to be inspected to the first feeding station (37). In S2, S2.1, the test piece is fed from the first feed station (37) along the CO path into the central alternating station (42); S2.2, the test is performed at the central alternating station (42); S2.3, the test piece is output along the OB path. In S2, the drive rotating head (28) drives the driven upright (30) to rotate via the U-shaped lever (29), thereby causing the horizontal swing rod (31) to make the AOB traveling seat (35) and COD support (38) move in the corresponding AOB channel (24) and COD channel (25); wherein, when the AOB traveling seat (35) and COD support (38) pass through point O, the electromagnetic part (32) passes through point O through electromagnetic attraction and repulsion or electromagnetic rod push; In S3, firstly, the object to be tested is sent to the output process extension plate (54); then, the output long conveyor belt (56) and the output end conveyor belt (55) output the object to be tested.

2. The transmission detection method for an electric shovel loader according to claim 1, characterized in that: in, An input support plate (44) is provided at the output end of the workpiece input conveyor belt group (16) set along the AOB direction. The upper end of the input torsion spring shaft (43) is hinged in the middle of the input support plate (44). The input torsion spring shaft (43) is close to the output end of the workpiece input conveyor belt group (16). The output end of the input support plate (44) is used to swing against the torsion spring force after contacting the COD traveling seat (36). The lower surface of the test piece is used to contact the upper surface of the input support plate (44). The input support plate (44) has an upper notch. The COD support seat (38) has a plug that passes through the upper notch. A central COD direction terminal baffle (45) is provided on the side of point D at the central alternating station (42), and a central COD spring column (46) for contacting the test piece is provided on the central COD direction terminal baffle (45). A central COD direction hinged grid plate (47) is provided in the AO section, and a central COD grid plate top (48) is provided on the upper surface of the central COD direction hinged grid plate (47); an OB direction hinged grid plate (49) with the same structure as the central COD direction hinged grid plate (47) is provided in the BO section. An AOB direction reset baffle (51) is provided at the front end above the upper part (50) of the AOB travel seat; an AOB baffle lower plate (53) is hinged to the lower end of the AOB direction reset baffle (51); the travel of the upper part (50) of the AOB travel seat is less than the travel of the COD support (38); An output process extension plate (54) is provided from the output side of the hinged grid plate (49) in the OB direction to the AOB output station (52). The workpiece output conveyor belt group (17) includes an output long conveyor belt (56) set outside the output process extension plate (54) and an output end conveyor belt (55) set outside the output process extension plate (54). A lifting robotic arm (57) and a matching top pressing plug (58) are provided at the central alternating work station (42). The central alternating workstation (42) corresponds to the pipe joint (22); In S2.1, firstly, the COD support (38) returns along OC to open the input support plate (44), and then continues to move away from the first feeding station (37), so that the input support plate (44) and the COD support (38) are separated and reset by the torsion spring force; then, the workpiece to be tested is fed in through the workpiece input conveyor belt group (16) and positioned on the upper surface of the input support plate (44) with the assistance of the robot arm; secondly, the COD support (38) moves forward along CO, the front fork of the COD support (38) enters the upper recess on the upper surface of the input support plate (44) and lifts the workpiece to be tested and moves forward to O, and then the COD support (38) pushes the input support plate (44) in the opposite direction to swing open, sending the workpiece to be tested to O, and achieving side positioning through the central COD spring column (46), the COD hinge reset baffle (39) is resisted and then swings, and the COD support (38) moves forward to the D end through the lower part of the part to be tested; Among them, a COD hinged reset baffle (39) is provided on the COD support (38) along the AOB direction. In S2.2, during testing, the matching top pressure plug (58) or hydraulic fitting is connected to the corresponding test piece via the lifting robotic arm (57); the hydraulic circuit is tested via the pipe joint (22); In S2.3, firstly, the upper part (50) of the AOB traveling seat moves along the AO direction, and pushes the workpiece to be tested at the center alternating station (42) on the auxiliary process tray (40) along the OB direction to the lower plate (53) of the AOB baffle at the AOB output station (52) through the AOB direction reset baffle (51); then, the COD tray (38) moves along the DOC direction; and then, the upper part (50) of the AOB traveling seat moves along the BOA direction. Among them, there is an AOB hinge seat (33) at the lower part of the AOB travel seat (35) and an AOB travel seat upper part (50) at the upper part. The electromagnetic part (32) is located at the four corners of the lower part of the cross at point O. The electromagnetic part (32) is an electromagnetic push rod or an electromagnetic suction base. An AOB output station (52) is set at the exit of the COD channel (25).

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