Rocker shaft component oil passage detection device

Abstract

The application discloses a rocker shaft component oil circuit detection device, and relates to the field of rocker detection equipment.The device comprises a rack, the rack is provided with a plurality of supporting blocks, a positioning groove is formed in the upper end surface of each supporting block, the axis of each positioning groove coincides and penetrates the corresponding supporting block along the axis direction, the positioning groove is used for embedding and positioning the rocker shaft, and the end of each oil inlet hole of the rocker shaft is located in the corresponding positioning groove and is blocked by the groove wall of the positioning groove; the rack is provided with a pressing assembly, the pressing assembly comprises a pressing piece and a driving piece for pressing the rocker shaft in the positioning groove and simultaneously closing the end of the oil inlet hole away from the positioning groove; the rack is further provided with a plurality of positioning parts, the positioning parts are arranged to be communicated with the flow channel in the rocker shaft and the rocker body when the rocker body is abutted; the supporting block is provided with a guide oil hole, one end of the guide oil hole is communicated to the other end of the oil inlet hole and is used for being communicated to the oil supply system. The positioning groove, the guide oil hole and the pressing assembly are arranged, so that the oil circuit detection operation is more efficient and convenient.

Description

Technical Field

[0001] This application relates to the field of rocker arm testing equipment, and more specifically, it relates to a rocker arm shaft component oil circuit testing device. Background Technology

[0002] The main function of the rocker arm shaft component is to convert the regular rotational motion of the camshaft into the regular reciprocating motion of the valve.

[0003] In actual operation, the rocker arm shaft assembly requires oil lubrication to reduce friction between moving parts and ensure normal operation. Therefore, oil passages are designed within the rocker arm shaft assembly. After assembly, the oil passages need to be tested to ensure proper oil flow.

[0004] If you want to Figure 1 The rocker arm shaft component shown includes a rocker arm shaft 21 and several rocker arm bodies 22 sleeved on the rocker arm shaft 21. Both the rocker arm shaft 21 and the rocker arm bodies 22 have oil passages. The oil passages in the rocker arm shaft 21 and the rocker arm bodies 22 are connected to form an oil circuit. The rocker arm shaft 21 is also provided with several oil inlet holes 23. Each oil inlet hole 23 passes through the rocker arm shaft 21 radially and is connected to the oil passages of the rocker arm shaft 21.

[0005] When performing an oil circuit test on the rocker arm shaft assembly, the operator needs to seal both ends of the oil inlet with bolt plugs, leaving only one inlet for connecting the fluid supply source. Then, rotate each rocker arm body to the angle where its internal oil passage connects with the rocker arm shaft oil passage, and supply fluid from the fluid supply source to observe whether the oil can flow smoothly from the oil outlet end of the oil circuit. If it can, the oil circuit is normally open.

[0006] The above-mentioned oil circuit inspection operation is cumbersome and has low testing efficiency, and needs to be improved. Summary of the Invention

[0007] To improve the low efficiency of oil circuit detection, this application provides an oil circuit detection device for rocker arm shaft components.

[0008] This application provides a rocker arm shaft component oil circuit detection device, which adopts the following technical solution:

[0009] A rocker arm shaft component oil circuit detection device includes a frame, the frame is provided with a plurality of support blocks, each support block has a positioning groove on its upper end face, the axes of each positioning groove overlap and all pass through the corresponding support block along the axial direction, the positioning groove is used for the rocker arm shaft to be embedded and positioned, and one end of each oil inlet hole on the rocker arm shaft is located in the corresponding positioning groove and is in contact with the groove wall of the positioning groove.

[0010] The frame is provided with a clamping assembly, which includes a clamping component and a driving clamping component for clamping the rocker arm shaft in the positioning groove and simultaneously sealing the oil inlet hole at the end away from the positioning groove.

[0011] The frame is also provided with several positioning parts, which are configured to allow the oil passages in the rocker arm shaft and the rocker arm body to be connected when the rocker arm body is pressed against it.

[0012] The support block is provided with an oil guide hole. One end of the oil guide hole is connected to the end of the oil inlet hole that is attached to the wall of the positioning groove, and the other end of the oil guide hole is used to connect to the oil supply system.

[0013] With the above technical solution, when it is necessary to test the oil circuit continuity, the workpiece's rocker arm shaft is installed into the positioning groove. Then, the ends of each rocker arm body are abutted against the corresponding positioning part. The driving component drives the clamping component to press the rocker arm shaft and seal one end of the rocker arm shaft's oil inlet. Then, the oil supply system is started to replenish the oil into the guide hole and enter the oil circuit of the rocker arm shaft component along the other end of the oil inlet. Observe whether the oil outlet end of the oil circuit can smoothly output oil to confirm the continuity of the oil circuit. Compared with the existing method of sealing one end of the oil inlet with bolts and manually controlling the angle of the rocker arm body, the use of a detection device makes the oil circuit detection operation more efficient and convenient.

[0014] Optionally, the clamping element is a clamping plate, and the lower end face of the clamping plate is provided with an elastic sealing layer, which is used to seal one end of the oil inlet hole.

[0015] By using the above technical solution, an elastic sealing groove is set up, which makes the sealing effect of the clamping component on the corresponding end of the oil inlet hole better and more stable.

[0016] Optionally, the driving component is a rotary cylinder. When the rotary cylinder drives the clamping component away from the positioning groove, the clamping component moves away from above the positioning groove.

[0017] Alternatively, the driving component is a driving cylinder, and the clamping component is hinged with a hinge rod. The hinge rod is hinged to the cylinder body of the driving cylinder. The hinge axis between the hinge rod and the clamping component is parallel to the hinge axis between the hinge rod and the cylinder body. The piston rod of the driving cylinder is hinged to the clamping component, and the hinge axis between the piston rod and the clamping component is parallel to the hinge axis between the clamping component and the hinge rod. When the piston rod of the driving cylinder extends, the piston rod drives the clamping component to flip and abut against the rocker arm shaft.

[0018] With the above technical solution, when a rotary cylinder is used, the clamping part moves away from the positioning groove after the rotary cylinder drives the clamping part away from the positioning groove; when a drive cylinder is used, the clamping part can also move away from the positioning groove by means of hinge flipping, thereby reducing the interference of the clamping part on the workpiece placement in actual use, and making the operation of placing the workpiece into the positioning groove more convenient.

[0019] Optionally, the positioning part is threadedly connected to the frame, and the thread axis of the positioning part is perpendicular to the corresponding end face of the frame.

[0020] Through the above technical solution, the positioning part can be adjusted in height according to the actual workpiece, making the overall use more convenient.

[0021] Optionally, the positioning part is threadedly connected to a locking nut, which is used to abut against the frame.

[0022] The above technical solution tightens the locking nut against the frame, making the positioning part more stable after height adjustment.

[0023] Optionally, the upper surface of the frame is provided with a detection area, and the support block and the clamping assembly are both located within the detection area; the upper surface of the frame is provided with an oil guide ring groove, the oil guide ring groove surrounds the detection area, and the bottom of the oil guide ring groove is provided with an oil drain hole.

[0024] By using the above technical solution, an oil guide ring groove is set up. During the detection process, the oil discharged from the oil outlet flows into the detection area and then into the oil guide ring groove, and finally flows away along the oil drain hole, making the collection of oil more convenient.

[0025] Optionally, the oil supply system includes an oil storage tank disposed within the frame and an oil pump disposed within the frame for pumping oil from the oil storage tank to the oil guide hole, wherein the oil drain hole is connected to the oil storage tank.

[0026] Through the above technical solution, the oil drain hole is connected to the oil storage tank to realize the recycling of oil, making the overall use of the dripping device more convenient and durable.

[0027] Optionally, the frame is provided with a positioning post, which is located at the end of the outermost support block away from other support blocks for the rocker arm shaft to be positioned against.

[0028] The above technical solution involves setting a positioning column to position the rocker arm shaft of the workpiece, making it more convenient to install the rocker arm shaft into the positioning groove.

[0029] Optionally, when the driving component is a rotary cylinder, the frame is further provided with a guide rod, the axis of which is parallel to the piston rod of the driving component, and the clamping component is provided with a guide hole. When the clamping component is pressed against the rocker arm shaft, the guide rod is embedded in the guide hole.

[0030] By using the above technical solution, guide holes and guide rods are provided. When the rotary cylinder drives the clamping component to press the rocker arm shaft, the guide rod and guide hole work together to form a guide, which reduces the bending moment force of the rotary cylinder piston rod and reduces the deformation of the piston rod, making the overall operation more stable and durable.

[0031] Optionally, the end of the clamping member that abuts against the rocker arm shaft is the clamping end, and the guide hole is located on the piston rod of the driving member away from the clamping end; the oil guide hole is connected to an oil guide pipe, and the oil guide hole is connected to the oil supply system through the oil guide pipe, and the oil guide pipe is connected to a normally closed solenoid valve, and the normally closed solenoid valve is equipped with a touch switch;

[0032] The frame is provided with a mounting base, the guide rod is disposed on the upper end face of the mounting base, the mounting base is slidably connected to a sliding rod, the sliding direction of the sliding rod is parallel to the piston rod axis of the driving component, the mounting base is provided with a return spring, the elastic force of the return spring causes the upper end of the sliding rod to protrude from the mounting base;

[0033] As the clamping member moves toward and abuts against the rocker arm shaft, the guide hole aligns with the guide rod and the clamping member abuts against the upper end of the sliding rod, causing the sliding rod to overcome the spring force of the return spring and move down against the touch switch, thus turning on the normally closed solenoid valve.

[0034] When the sliding rod disengages from the trigger switch, the normally closed solenoid valve is in the off-state.

[0035] The above technical solution includes a sliding rod, a return spring, a normally closed solenoid valve, and a trigger switch. When the sliding rod is not pressed against the trigger switch, the normally closed solenoid valve is in an open state, and the fluid supply system cannot replenish the oil into the guide hole. When the clamping component presses against the rocker arm shaft and causes the sliding rod to slide and trigger the trigger switch, the normally closed solenoid valve is turned on, allowing the fluid supply system to replenish the guide hole and realize oil circuit detection. Oil circuit detection can be realized simply by controlling the clamping component, making the detection operation more convenient.

[0036] Furthermore, since the clamping end of the clamping component and the guide hole are located on both sides of the piston rod of the rotary cylinder, when the clamping component drives the sliding rod to move, the elastic force of the return spring acts on the end of the clamping component located on the piston rod away from the clamping end, forming a force balance for the pressure of the clamping end on the workpiece, reducing the situation of excessive bending moment on one side of the piston rod, making the rotary cylinder more durable and stable in use.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] (1) By setting up positioning grooves, oil guide holes and clamping components, the oil circuit detection operation is made more efficient and convenient;

[0039] (2) By setting an oil guide ring groove and an oil drain hole, the collection of oil becomes more convenient;

[0040] (3) By setting guide holes and guide rods, the bending moment of the piston rod of the rotary cylinder is reduced, the deformation of the piston rod is reduced, and the overall operation is more stable and durable. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the rocker arm shaft component structure in the background art;

[0042] Figure 2 This is a schematic diagram of the clamping assembly in the open state according to Embodiment 1;

[0043] Figure 3 This is a schematic diagram of the pressing assembly in the pressing state according to Example 1;

[0044] Figure 4 This is a schematic diagram of the detection status in Example 1;

[0045] Figure 5 This is a schematic diagram of the sliding rod structure in Example 2.

[0046] Reference numerals: 1. Frame; 2. Oil guide ring groove; 3. Oil drain hole; 4. Support block; 41. Positioning groove; 5. Positioning post; 6. Positioning part; 7. Clamping assembly; 71. Clamping component; 72. Driving component; 8. Locking nut; 9. Elastic sealing layer; 10. Guide rod; 11. Guide hole; 12. Hinge rod; 13. Oil guide hole; 14. Oil supply system; 141. Oil reservoir; 142. Oil pump; 15. Limiting post; 16. Normally closed solenoid valve; 17. Touch switch; 18. Mounting base; 19. Sliding rod; 20. Return spring; 21. Rocker arm shaft; 22. Rocker arm body; 23. Oil inlet. Detailed Implementation

[0047] The present application will be further described in detail below with reference to the accompanying drawings.

[0048] This application discloses an oil circuit detection device for rocker arm shaft components.

[0049] Example 1:

[0050] A rocker arm shaft component oil circuit detection device, see [link / reference] Figure 2 The device includes a frame 1, with a rectangular detection area on the upper surface of the frame 1. The upper surface of the frame 1 is also provided with an oil guide ring groove 2, which surrounds the detection area. The bottom of the oil guide ring groove 2 is provided with an oil drain hole 3.

[0051] See Figure 2 and Figure 3The detection area includes support blocks 4, positioning posts 5, positioning parts 6, and clamping components 7. Several support blocks 4 are provided, spaced apart along the length of the detection area. Each support block 4 is fixed to the frame 1 by bolts or welding; in this example, the support blocks 4 are fixed by bolts. Each support block 4 has a positioning groove 41 on its upper surface. Each positioning groove 41 is an arc-shaped groove adapted to the size of the rocker arm shaft 21. The axes of each positioning groove 41 coincide and all pass through the corresponding support block 4 along the axial direction.

[0052] The positioning pin 5 is located at the end of the outermost support block 4 away from the other support blocks 4, and the positioning pin 5 is fixed to the frame 1 by bolts. When the rocker arm shaft 21 of the rocker arm shaft assembly needs to be inserted into the positioning groove 41, the axial end of the workpiece is supported by the positioning pin 5, thereby facilitating the alignment of the workpiece.

[0053] Multiple positioning parts 6 are provided, each positioning part 6 being in the shape of a round rod. The positioning part 6 is threadedly connected to the frame 1, and the thread axis of the positioning part 6 is perpendicular to the upper end face of the frame 1. A locking nut 8 is also threadedly connected to the positioning part 6. After the positioning part 6 is adjusted, the locking nut 8 is tightened to make the locking nut 8 press against the end face of the frame 1, making the positioning part 6 more stable.

[0054] In actual use, the positioning part 6 is mainly used for the end of the rocker arm body 22 to abut against the positioning part 6. When the end of the rocker arm body 22 abuts against the positioning part 6, the oil passage in the rocker arm shaft 21 and the oil passage in the rocker arm body 22 are in a conductive state, which facilitates the detection of the conductivity of the oil circuit.

[0055] The clamping assembly 7 includes a clamping member 71 and a driving member 72. The clamping member 71 is a clamping plate, and the end of the clamping plate that abuts against the rocker arm shaft 21 is the clamping end. An elastic sealing layer 9, made of rubber, is fixed at the clamping end of the clamping plate. When the clamping plate clamps the rocker arm shaft 21, the elastic sealing layer 9 is located on the lower end face of the clamping plate and is used to seal the end of the oil inlet hole 23 away from the positioning groove 41.

[0056] The driving component 72 is used to drive the pressure plate to move and press the rocker arm shaft 21 into the positioning groove 41. In actual use, the driving component 72 can adopt the following two schemes: In one scheme, the driving component 72 is a rotary cylinder. When the piston rod of the rotary cylinder extends, the rotary cylinder drives the pressure component 71 away from the positioning groove 41, and the pressure component 71 moves away from the top of the positioning groove 41 by rotation. When the piston rod of the rotary cylinder retracts, the pressure component 71 first moves to the top of the positioning groove 41 by rotation, and then moves toward the positioning groove 41 to press against the rocker arm shaft 21. To guide the clamping member 71, a guide rod 10 is fixed on the upper end face of the frame 1. The axis of the guide rod 10 is parallel to the axis of the piston rod of the drive member 72. A guide hole 11 is provided in the clamping member 71, and the guide hole 11 is located at the piston rod of the drive member 72 away from the clamping end. When the rotary cylinder drives the clamping member 71 to clamp the rocker arm shaft 21, the guide rod 10 and the guide hole 11 cooperate to form a guide, which reduces the bending moment force of the rotary cylinder piston rod and reduces the deformation of the piston rod.

[0057] In another embodiment, the driving component 72 is a driving cylinder. In this embodiment, the clamping component 71 is hinged to a hinge rod 12. The end of the hinge rod 12 away from the clamping component 71 is hinged to the cylinder body of the driving cylinder, and the hinge axis between the hinge rod 12 and the clamping component 71 is parallel to the hinge axis between the hinge rod 12 and the cylinder body. The piston rod of the driving cylinder is hinged to the clamping component 71, and the hinge axis between the piston rod and the clamping component 71 is parallel to the hinge axis between the clamping component 71 and the hinge rod 12. The hinge axis between the piston rod and the clamping component 71 is located on the side of the hinge axis between the clamping component 71 and the hinge rod 12 away from the clamping end. When the piston rod of the driving cylinder extends, the piston rod drives the clamping component 71 to flip and clamp against the rocker arm shaft 21.

[0058] In this example, the driving element 72 of the clamping components 7 at both ends is a rotary cylinder, and the driving element 72 of the clamping components 7 in the middle is a drive cylinder.

[0059] The support block 4 is also provided with an oil guide hole 13, which is located in the groove wall of the positioning groove 41. When the rocker arm shaft 21 is embedded in the positioning groove 41, one end of each oil inlet hole 23 of the rocker arm shaft 21 is located in the corresponding positioning groove 41 and is fitted by the groove wall of the positioning groove 41. One end of the oil guide hole 13 is connected to the end of the oil inlet hole 23 that is fitted by the groove wall of the positioning groove 41. By fitting the rocker arm shaft 21 with the inner wall of the positioning groove 41, oil leakage from the gap between the rocker arm shaft 21 and the positioning groove 41 is reduced, ensuring that the oil enters the oil inlet hole 23 along the oil guide hole 13.

[0060] The end of the oil guide hole 13 furthest from the wall of the positioning groove 41 is connected to the oil supply system 14. The oil supply system 14 includes an oil storage tank 141 and an oil pump 142. The oil storage tank 141 is located inside the frame 1 and below the detection area, and the lower end of the oil drain hole 3 is connected to the oil storage tank 141. The oil pump 142 is installed on the frame 1 to pump the oil in the oil storage tank 141 to each oil guide hole 13. To facilitate the flow, the output end of the oil pump 142 is connected to an oil guide pipe, which is connected to the corresponding oil guide hole 13 through branch pipes.

[0061] See Figure 2 and Figure 4 A limiting post 15 is fixed in the positioning groove 41 of the support block 4 furthest from the positioning post 5, and the axis of the limiting post 15 is perpendicular to the upper end face of the frame 1. When the rocker arm shaft 21 is inserted into the positioning groove 41, the limiting post 15 is inserted into the oil inlet hole 23 of the rocker arm shaft 21 to form a limit, so that the oil inlet hole 23 of the rocker arm shaft 21 is aligned with the corresponding oil guide hole 13.

[0062] The working principle of this embodiment is as follows:

[0063] When it is necessary to test the oil circuit continuity, the rocker arm shaft 21 of the workpiece is installed into the positioning groove 41 and positioned by the positioning pin 5. Then, the ends of each rocker arm body 22 are abutted against the corresponding positioning part 6. Then, the driving component 72 drives the clamping component 71 to clamp the rocker arm shaft 21 and seal one end of the oil inlet hole 23 of the rocker arm shaft 21. Then, the oil supply system 14 is started to replenish the oil into the guide hole 13 and enter the oil circuit of the rocker arm shaft component along the other end of the oil inlet hole 23. The continuity of the oil circuit is then confirmed by observing whether the oil outlet end can smoothly discharge oil. The oil discharged from the oil outlet end is guided to the guide ring groove and then flows back to the oil storage tank 141 through the oil drain hole 3 to form a cycle, making the oil circuit testing operation of the rocker arm shaft component more efficient and convenient.

[0064] Example 2:

[0065] A rocker arm shaft component oil circuit detection device, see [link / reference] Figure 5 The difference from Embodiment 1 is that the oil guide pipe is connected to a normally closed solenoid valve 16, which has an actuating switch 17. A mounting base 18 is fixed to the upper end face of the frame 1, and a guide rod 10 is fixedly connected to the upper end face of the mounting base 18. A sliding rod 19 is slidably connected to the mounting base 18. The sliding direction of the sliding rod 19 is parallel to the piston rod axis of the drive member 72. The mounting base 18 is provided with a return spring 20, and the elastic force of the return spring 20 causes the upper end of the sliding rod 19 to protrude from the mounting base 18.

[0066] As the clamping member 71 moves toward and abuts against the rocker arm shaft 21, the guide hole 11 aligns with the guide rod 10 and is inserted, and the clamping member 71 abuts against the upper end of the sliding rod 19, causing the sliding rod 19 to overcome the elastic force of the return spring 20 and move down against the touch switch 17, thus opening the normally closed solenoid valve 16; at this time, the oil pump 142 can pump the oil to the oil guide hole 13.

[0067] After the test is completed, the rotary cylinder drives the clamping part 71 to move upward. At this time, the sliding rod 19 moves upward under the elastic force of the return spring 20 and disengages from the touch switch 17. At this time, the normally closed solenoid valve 16 is in the off state, which can close the liquid guide tube immediately and reduce the situation where oil sprays out from the oil guide hole 13.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rocker arm shaft component oil circuit detection device, comprising a frame (1), characterized in that: The frame (1) is provided with a number of support blocks (4). Each support block (4) has a positioning groove (41) on its upper surface. The axes of each positioning groove (41) overlap and all pass through the corresponding support block (4) along the axial direction. The positioning groove (41) is used for the rocker arm shaft (21) to be embedded and positioned, so that one end of each oil inlet hole (23) on the rocker arm shaft is located in the corresponding positioning groove (41) and is attached to the groove wall of the positioning groove (41). The frame (1) is provided with a clamping assembly (7), which includes a clamping member (71) and a driving clamping member (71) for clamping the rocker arm shaft (21) in the positioning groove (41) and simultaneously sealing the oil inlet hole (23) at the end away from the positioning groove (41). The frame (1) is also provided with a number of positioning parts (6), which are configured to connect the oil passages in the rocker arm shaft (21) and the rocker arm body (22) when the rocker arm body (22) is abutted against. The support block (4) is provided with an oil guide hole (13). One end of the oil guide hole (13) is connected to one end of the oil inlet hole (23) that fits against the groove wall of the positioning groove (41). The other end of the oil guide hole (13) is used to connect to the oil supply system (14).

2. The rocker arm shaft component oil circuit detection device according to claim 1, characterized in that: The clamping component (71) is a clamping plate, and the lower end face of the clamping plate is provided with an elastic sealing layer (9). The elastic sealing layer (9) is used to seal one end of the oil inlet hole (23).

3. The rocker arm shaft component oil circuit detection device according to claim 2, characterized in that: The driving component (72) is a rotary cylinder. When the rotary cylinder drives the clamping component (71) away from the positioning groove (41), the clamping component (71) moves away from the top of the positioning groove (41). Alternatively, the driving component (72) is a driving cylinder, and the clamping component (71) is hinged with a hinge rod (12). The hinge rod (12) is hinged to the cylinder body of the driving cylinder. The hinge axis of the hinge rod (12) and the clamping component (71) is parallel to the hinge axis of the hinge rod (12) and the cylinder body. The piston rod of the driving cylinder is hinged to the clamping component (71), and the hinge axis of the piston rod and the clamping component (71) is parallel to the hinge axis of the clamping component (71) and the hinge rod (12). When the piston rod of the driving cylinder extends, the piston rod drives the clamping component (71) to flip and abut against the rocker arm shaft (21).

4. The rocker arm shaft component oil circuit detection device according to claim 1, characterized in that: The positioning part (6) is threadedly connected to the frame (1), and the thread axis of the positioning part (6) is perpendicular to the corresponding end face of the frame (1).

5. The rocker arm shaft component oil circuit detection device according to claim 4, characterized in that: The positioning part (6) is threadedly connected to a locking nut (8), which is used to abut against the frame (1).

6. The rocker arm shaft component oil circuit detection device according to claim 1, characterized in that: The upper surface of the frame (1) is provided with a detection area, and the support block (4) and the clamping assembly (7) are both located in the detection area; the upper surface of the frame (1) is provided with an oil guide ring groove (2), the oil guide ring groove (2) surrounds the detection area, and the bottom of the oil guide ring groove (2) is provided with an oil drain hole (3).

7. The rocker arm shaft component oil circuit detection device according to claim 6, characterized in that: The oil supply system (14) includes an oil storage tank (141) disposed in the frame (1) and an oil pump (142) disposed in the frame (1) for pumping oil in the oil storage tank (141) to the oil guide hole (13). The oil drain hole (3) is connected to the oil storage tank (141).

8. The rocker arm shaft component oil circuit detection device according to claim 1, characterized in that: The frame (1) is provided with a positioning post (5), which is located at the end of the outermost support block (4) away from other support blocks (4) for the rocker arm shaft (21) to be positioned against it.

9. The rocker arm shaft component oil circuit detection device according to claim 3, characterized in that: When the driving component (72) is a rotary cylinder, the frame (1) is also provided with a guide rod (10). The axis of the guide rod (10) is parallel to the piston rod of the driving component (72). The clamping component (71) is provided with a guide hole (11). When the clamping component (71) is pressed against the rocker arm shaft (21), the guide rod (10) is embedded in the guide hole (11).

10. The rocker arm shaft component oil circuit detection device according to claim 9, characterized in that: The clamping member (71) is used to abut against the rocker arm shaft (21) at one end, which is the clamping end. The guide hole (11) is located on the piston rod of the drive member (72) away from the clamping end. The oil guide hole (13) is connected to an oil guide pipe. The oil guide hole (13) is connected to the oil supply system (14) through the oil guide pipe. The oil guide pipe is connected to a normally closed solenoid valve (16). The normally closed solenoid valve (16) is equipped with a touch switch (17). The frame (1) is provided with a mounting base (18), the guide rod (10) is provided on the upper end face of the mounting base (18), the mounting base (18) is slidably connected with a sliding rod (19), the sliding direction of the sliding rod (19) is parallel to the piston rod axis of the drive member (72), the mounting base (18) is provided with a return spring (20), the elastic force of the return spring (20) causes the upper end of the sliding rod (19) to protrude from the mounting base (18); As the clamping member (71) moves toward the rocker arm shaft (21) and abuts against the rocker arm shaft (21), the guide hole (11) is aligned with the guide rod (10) and fitted in, and the clamping member (71) abuts against the upper end of the sliding rod (19), causing the sliding rod (19) to overcome the elastic force of the return spring (20) and move down and abut against the touch switch (17), so that the normally closed solenoid valve (16) is turned on. When the sliding rod (19) disengages from the trigger switch (17), the normally closed solenoid valve (16) is in the off-state.

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