Engine rocker arm assembly testing fixture

Abstract

The utility model relates to an engine rocker arm assembly testing fixture, which relates to the technical field of equipment detection, and comprises a base for placing an engine rocker arm shaft, a limiting assembly and two detection assemblies, a plurality of first limiting grooves for limiting a first rocker arm shaft of the engine and a plurality of second limiting grooves for limiting a second rocker arm shaft are formed in the limiting seat; the distribution direction of the two detection assemblies is consistent with the distribution direction of the multiple placement grooves, each detection assembly comprises a rotating shaft and a detection piece, the rotating shaft is horizontally fixed to the end wall of one end of the limiting seat, the detection piece comprises a rotating rod and a contact plate, one end of the rotating rod is rotationally connected to the rotating shaft, and the side, close to the base, of the rotating rod is an initial surface; a fixing groove for containing the contact plate is formed in the initial face of the rotating rod, the contact plate and the rotating rod can form a section difference, and the contact plate is used for making contact with the end of an engine rocker. The method has the effect of improving errors of the detection result.

Description

Technical Field

[0001] The present application relates to the field of equipment detection technology, and in particular to an engine rocker arm assembly inspection fixture. Background Art

[0002] The engine rocker arm is an important component of the automobile engine. Its main function is to convert the rotational motion of the camshaft into the linear motion of the valve, thereby controlling the engine's intake and exhaust, making the engine valve open and close at a fixed time, completing the accurate ventilation cycle process of the internal combustion engine, and ensuring stable and reliable operation of the engine.

[0003] In the related art, an application document with publication number CN212673988U discloses an engine rocker arm assembly inspection fixture, including a base, a limit plate is arranged on the base, a first limit groove for limiting the position of the first rocker arm on the rocker arm shaft and a second limit groove for limiting the position of the second rocker arm on the rocker arm shaft are opened on the limit plate, the first limit groove and the second limit groove are both open to one side, the depth of the first limit groove is greater than the depth of the second limit groove, the first limit groove and the second limit groove constitute a placement group, and a plurality of placement groups are arranged in sequence along a straight line direction. The staff assembles the first rocker arm and the second rocker arm on the rocker arm shaft in sequence at even intervals, and then places the engine rocker arm assembly on the base, and corresponds the first rocker arm to the first limit groove and the second rocker arm to the second limit groove, so that the engine rocker arm can be inspected.

[0004] With respect to the above-mentioned related technologies, the engine rocker arm can be inspected by placing the engine rocker arm assembly on the base, aligning the first rocker arm with the first limit groove and the second rocker arm with the second limit groove. However, during the engine rocker arm inspection, personnel may make operating errors when installing the nuts at both ends of the engine rocker arm, resulting in errors in the inspection results. Utility Model Content

[0005] In order to improve the problem of errors in detection results, the present application provides an engine rocker arm assembly inspection fixture.

[0006] The engine rocker arm assembly inspection fixture provided in this application adopts the following technical solution:

[0007] An engine rocker arm assembly inspection tool, comprising a base for placing an engine rocker arm shaft, a limit assembly and two detection assemblies, the limit assembly comprising a limit seat, the limit seat being fixed on the base, the limit seat being provided with a plurality of first limit grooves for limiting a first rocker arm shaft of the engine and a plurality of second limit grooves for limiting a second rocker arm shaft, the first limit groove and the second limit groove both being openly arranged toward one side, the first limit groove and the second limit groove forming a group of placement grooves, and the plurality of placement grooves being evenly spaced and arranged in sequence along a straight line direction;

[0008] The two detection components are both located on the limit seat, and the distribution direction of the two detection components is consistent with the distribution direction of the multiple placement slots. The detection component includes a rotating shaft and a detection member. The rotating shaft is horizontally fixed to the end wall of one end of the limit seat, and the axial direction of the rotating shaft is consistent with the distribution direction of the multiple placement slots. The detection member includes a rotating rod and a contact plate. One end of the rotating rod is rotatably connected to the rotating shaft, and the rotating rod can rotate in a direction perpendicular to the axial direction of the rotating shaft. The side of the rotating rod close to the base is assumed to be an initial surface, and the rotating rod is provided with a fixed groove on the initial surface for accommodating the contact plate. The fixed groove is located at the end of the rotating rod away from the rotating shaft. The contact plate and the rotating rod can form a cross-sectional difference, and the contact plate is used to contact the end of the engine rocker arm.

[0009] By adopting the above technical solution, when the engine rocker arm assembly inspection fixture needs to be used, first, the base is moved to a suitable position, then the engine rocker arm shaft that needs to be inspected is taken out, and the engine rocker arm shaft is placed on the base so that the engine rocker arm shaft is close to the limit assembly, and the first engine rocker arm shaft is extended into the first limit groove, and the second engine rocker arm shaft is extended into the second limit groove. After the engine rocker arm shaft is placed, the personnel toggles the rotating rod, and the rotating rod can rotate in a direction perpendicular to the axial direction of the rotating shaft, and the rotating rod can rotate toward the side close to the engine rocker arm shaft. At this time, the contact plate moves synchronously with the rotating rod. When the contact plate contacts the end of the engine, it indicates that the engine rocker arm shaft is assembled. When the rotating rod contacts the end of the engine, it means that the engine rocker shaft is unqualified. When neither the contact plate nor the rotating rod contacts the end of the engine, it means that the engine rocker shaft is unqualified. Compared with the related art, the present application can limit the first rocker shaft and the second rocker shaft of the engine through the first limit groove and the second limit groove. At the same time, the first limit groove and the first rocker shaft of the engine cooperate with the second limit groove and the second rocker shaft of the engine to detect the engine rocker shaft. Personnel can turn the rotating rod, and through the cooperation of the rotating rod and the contact plate with the engine rocker shaft, it can be detected whether the engine rocker shaft is qualified, which is conducive to improving the problem of errors in the detection results.

[0010] Optionally, the detection assembly also includes a first abutment rod and a second abutment rod, the first abutment rod and the second abutment rod are both vertically fixed to the side of the base close to the limit seat, a distance is left between the first abutment rod and the second abutment rod, the first abutment rod is located on one side of the base, the first abutment rod is close to the limit seat, the distribution direction of the first abutment rod and the second abutment rod is perpendicular to the axial direction of the rotating shaft, and when the engine rocker arm needs to be detected, it is in the initial state, and the rotating rod is close to the top of the first abutment rod.

[0011] By adopting the above technical solution, when the engine rocker arm assembly inspection fixture needs to be used, the base is moved to a suitable position, and the personnel then toggles the rotating rod to make the rotating rod close to the top of the first abutment rod, and then takes out the engine rocker arm shaft to make the engine rocker arm shaft fit with the limit seat. After the engine rocker arm shaft is placed, the personnel then toggles the rotating rod. Through personnel observation, the engine rocker arm shaft can be inspected, and when the rotating rod and the contact plate are not in contact with the engine rocker arm shaft, the rotating rod can abut against the second abutment rod. When the personnel toggles the rotating rod, the first abutment rod abuts against the rotating rod, and a gap is left between the rotating rod and the base. By providing the first abutment rod and the second abutment rod, it is convenient for personnel to toggle the rotating rod, thereby facilitating personnel operation and facilitating inspection of the engine rocker arm shaft.

[0012] Optionally, a side of the limiting seat close to the rotating shaft is provided with an avoidance groove for accommodating the contact plate.

[0013] By adopting the above technical solution, when the engine rocker arm shaft needs to be tested, first, the engine rocker arm shaft is placed on the base. At this time, the contact plate is located in the avoidance groove, and the contact plate and the rotating rod form a cross-sectional difference. By setting the avoidance groove, it is helpful to reduce the wear of the contact plate and the limit seat.

[0014] Optionally, two driving components are further included, one driving component corresponds to one rotating shaft, the driving component includes a rotating disk, the rotating disk is vertically arranged, the rotating disk and the rotating shaft are coaxially arranged, the rotating disk is rotatably connected to the rotating shaft, and the rotating rod is fixed to the rotating disk at one end away from the contact plate.

[0015] By adopting the above technical solution, when the engine rocker shaft needs to be tested, first, the engine rocker shaft is placed on the base, and then a person drives the rotating disk to rotate. During the rotation of the rotating disk, the rotating rod can rotate synchronously with the rotating disk. Afterwards, the person observes the contact between the rotating rod and the contact plate and the end of the engine rocker shaft, so as to judge whether the engine rocker shaft is qualified. By setting the rotating disk, it is convenient for people to drive the rotating rod to rotate.

[0016] Optionally, the driving assembly further comprises a handle, and the handle is fixed to a side of the rotating disk away from the limiting seat.

[0017] By adopting the above technical solution, when a person drives the rotating rod to rotate, the person holds the handle and turns the handle. The handle can drive the rotating disk to rotate. At the same time, the rotating rod rotates with the rotating disk. By setting the handle, on the one hand, the person only needs to turn the handle to drive the rotating rod to rotate, which is convenient for the person to operate; on the other hand, the person only needs to turn the handle, and manual operation is conducive to energy saving and environmental protection.

[0018] Optionally, it also includes a fixing component, which is located on the side of the base close to the limit seat, and the fixing component includes a placement seat and a positioning seat, the placement seat is located on the side of the limit seat close to the notch of the first limit slot and the notch of the second limit slot, the placement seat is fixed to the base, and the positioning seat is fixed to the side of the placement seat away from the base, and a plurality of positioning grooves are formed on the side of the positioning seat close to the limit seat, the positioning grooves and the placement seat form an accommodating area for accommodating one end of the engine rocker arm shaft away from the limit seat, and a placement gap for placing the engine rocker arm shaft is formed between the positioning seat and the limit seat.

[0019] By adopting the above technical scheme, when the engine rocker shaft needs to be inspected, the engine rocker shaft to be inspected is placed in the placement gap, and then the first rocker shaft and the second rocker shaft of the engine are matched with the appropriate positioning grooves. After that, the engine rocker shaft is inspected again. By setting a fixing component, it is convenient to fix the engine rocker shaft, which is beneficial to improve the accuracy of engine rocker shaft detection.

[0020] Optionally, the limit assembly also includes a fixing seat, which is located between the limit seat and the base, and the fixing seat is fixed to the base. The first limit groove and the fixing seat form a first placement area for placing a first rocker arm shaft of the engine, and the second limit groove and the fixing seat form a second placement area for placing a second rocker arm shaft of the engine.

[0021] By adopting the above technical solution, the engine rocker shaft is placed on the base, so that the first rocker shaft and the second rocker shaft of the engine are respectively located in the first placement area and the second placement area, and the first rocker shaft and the second rocker shaft are supported by the fixing seat. By setting the fixing seat, on the one hand, it helps to prevent the first rocker shaft and the second rocker shaft from falling; on the other hand, it helps to improve the accuracy of the position between the first rocker shaft and the second rocker shaft.

[0022] Optionally, the fixing assembly further includes a plurality of positioning rods, wherein the plurality of positioning rods are vertically located in the placement gap, the distribution direction of the plurality of positioning rods is consistent with the distribution direction of the plurality of placement slots, and there is a positioning slot between two adjacent positioning rods. The positioning rods are fixed to the base, and the positioning rods are used to position the engine rocker arm shaft.

[0023] By adopting the above technical solution, a positioning rod is set, the engine rocker arm shaft is placed on the base, and the positioning rod is used to limit the engine rocker arm, which helps prevent the engine rocker arm from shifting on the base, thereby improving the accuracy of the position of the first rocker arm and the second rocker arm on the rocker arm shaft.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Compared with the related art, the present application can limit the first rocker arm shaft and the second rocker arm shaft of the engine through the first limiting groove and the second limiting groove. At the same time, the first limiting groove and the first rocker arm shaft of the engine cooperate with the second limiting groove and the second rocker arm shaft of the engine to detect the rocker arm shaft of the engine. A person can turn the rotating rod, and through the cooperation of the rotating rod and the contact plate with the rocker arm shaft of the engine, it can be detected whether the rocker arm shaft of the engine is qualified, which is conducive to improving the problem of errors in the detection results;

[0026] 2. By providing the first abutment rod and the second abutment rod, it is convenient for personnel to turn the rotating rod, thereby facilitating personnel operation and facilitating detection of the engine rocker arm shaft;

[0027] 3. By setting a fixing component, it is convenient to fix the engine rocker shaft, which is beneficial to improve the accuracy of engine rocker shaft detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0029] Figure 2 is a schematic diagram of the structure of the base and the fixing assembly in this embodiment;

[0030] Figure 3 It is a schematic diagram of the structure of the detection component and the driving component in this embodiment.

[0031] Explanation of the accompanying drawings: 1. base; 2. limit assembly; 21. fixed seat; 22. limit seat; 221. first limit slot; 222. second limit slot; 223. avoidance slot; 3. fixed assembly; 31. placement seat; 32. positioning seat; 321. positioning slot; 33. positioning rod; 4. detection assembly; 41. rotating shaft; 42. first abutment rod; 43. second abutment rod; 44. detection member; 441. rotating rod; 4411. fixed slot; 442. contact plate; 5. driving assembly; 51. rotating disk; 52. handle; 6. first rocker arm shaft; 7. second rocker arm shaft. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] The present application embodiment discloses an engine rocker arm assembly inspection fixture. Figure 1 An engine rocker arm assembly inspection fixture includes a base 1, a limit assembly 2, a fixing assembly 3, two detection assemblies 4 and two drive assemblies 5. The limit assembly 2 and the fixing assembly 3 are both arranged on the base 1, and the detection assembly 4 and the drive assembly 5 are both arranged on the limit assembly 2.

[0034] Reference Figure 1In this embodiment, the base 1 is a rectangular base, the base 1 is horizontally arranged, the horizontal cross section of the base 1 is a rectangle, and the base 1 is located on the workbench.

[0035] Reference Figure 1 and Figure 2 , the limit assembly 2 is located at the side of the base 1 away from the workbench, the limit assembly 2 includes a fixed seat 21 and a limit seat 22. In this embodiment, the fixed seat 21 is a rectangular seat, the fixed seat 21 is horizontally arranged, and the length direction of the long side of the fixed seat 21 is consistent with the direction of the long side of the base 1, the fixed seat 21 is welded to the base 1, and the fixed seat 21 is close to one of the long sides of the base 1, the limit seat 22 is located at the side of the fixed seat 21 away from the base 1, the limit seat 22 is a rectangular seat, the setting direction of the limit seat 22 is consistent with the setting direction of the fixed seat 21, the length direction of the long side of the limit seat 22 is consistent with the length direction of the long side of the base 1, the length of the long side of the limit seat 22 is the same as the length of the long side of the fixed seat 21, the limit seat 22 is welded to the fixed seat 21, the horizontal cross-sectional area of ​​the limit seat 22 can be equal to the horizontal cross-sectional area of ​​the fixed seat 21, or it can be slightly smaller than the horizontal cross-sectional area of ​​the fixed seat 21. In this embodiment, the horizontal cross-sectional area of ​​the limit seat 22 is equal to the horizontal cross-sectional area of ​​the fixed seat 21.

[0036] Reference Figure 1 and Figure 2 The limiting seat 22 is provided with a plurality of first limiting grooves 221 and a plurality of second limiting grooves 222 in the length direction of the inner long side close to the base 1. The notches of the first limiting groove 221 and the second limiting grooves 222 are both open toward the inner side of the base 1. The notch depth of the first limiting groove 221 is greater than the notch depth of the second limiting groove 222. The first limiting groove 221 and the second limiting groove 222 constitute a group of placement grooves, and the placement grooves are uniformly spaced in sequence along the length direction of the long side of the limiting seat 22. In this embodiment, there are four placement grooves. The first limiting groove 221 and the fixing seat 21 form a first placement area for placing the first rocker arm shaft 6 of the engine, and the second limiting groove 222 and the fixing seat 21 form a second placement area for placing the second rocker arm shaft 7 of the engine.

[0037] Reference Figure 1 and Figure 2The fixing component 3 is located on the side of the base 1 away from the workbench, and the fixing component 3 includes a placing seat 31, a positioning seat 32 and a plurality of positioning rods 33. In the present embodiment, the placing seat 31 is a rectangular seat, and the horizontal cross-section of the placing seat 31 is a rectangle. The placing seat 31 is located on the side of the notch of the limiting seat 22 close to the first limiting groove 221 and the notch of the second limiting groove 222. The length direction of the long side of the placing seat 31 is consistent with the length direction of the long side of the base 1. The placing seat 31 is welded to the base 1, and the positioning seat 32 is located on the side of the placing seat 31 away from the base 1. In the present embodiment, the positioning seat 32 is a rectangular seat, and the setting direction of the positioning seat 32 is consistent with the setting direction of the placing seat 31, the length direction of the long side of the positioning seat 32 is consistent with the length direction of the long side of the placing seat 31, and the length of the long side of the positioning seat 32 is the same as the length of the long side of the placing seat 31. Preferably, the area of ​​the horizontal cross-section of the positioning seat 32 is equal to the area of ​​the horizontal cross-section of the placing seat 31.

[0038] Reference Figure 1 and Figure 2 A plurality of positioning grooves 321 are provided on one side of the positioning seat 32 close to the limiting seat 22. In the present embodiment, the number of the positioning grooves 321 is eight, and the eight positioning grooves 321 are evenly spaced along the length direction of the long side of the positioning seat 32. The positioning grooves 321 and the placement seat 31 form a storage area for accommodating the first rocker arm shaft 6 and the second rocker arm shaft 7 of the engine away from one end of the limiting seat 22, and a placement gap for placing the engine rocker arm shaft is formed between the positioning seat 32 and the limiting seat 22.

[0039] Reference Figure 2 , multiple positioning rods 33 are located between the positioning seat 32 and the limiting seat 22, and multiple positioning rods 33 are vertically arranged. In this embodiment, the number of positioning rods 33 is four, and the four positioning rods 33 are evenly spaced along the length direction of the long side of the positioning seat 32. There is a positioning groove 321 between two adjacent positioning rods 33. The positioning rods 33 are welded to the base 1, and the positioning rods 33 can position the rocker shaft of the engine.

[0040] Reference Figure 1 , Figure 2 and Figure 3, the two detection components 4 are both located on the limit seat 22, and the two detection components 4 are distributed along the length direction of the long side of the limit seat 22. The detection component 4 includes a rotating shaft 41, a first abutting rod 42, a second abutting rod 43 and a detection member 44. The rotating shaft 41 is located on the end wall of one end of the limit seat 22, the rotating shaft 41 is horizontally arranged, and the setting direction of the rotating shaft 41 is consistent with the length direction of the long side of the limit seat 22. One end of the rotating shaft 41 is welded to the limit seat 22, and the first abutting rod 42 and the second abutting rod 43 are both arranged on the side of the base 1 away from the workbench. The first abutting rod 42 and the second abutting rod 43 are both vertically arranged, and a spacing is left between the first abutment rod 42 and the second abutment rod 43. The first abutment rod 42 is located on one side of the base 1, and the first abutment rod 42 is close to the limiting seat 22, and the second abutment rod 43 is close to the gap between the limiting seat 22 and the positioning seat 32. The first abutment rod 42 and the second abutment rod 43 are arranged side by side, and the distribution direction of the first abutment rod 42 and the second abutment rod 43 is perpendicular to the axial direction of the rotating shaft 41. The height of the first abutment rod 42 is higher than that of the second abutment rod 43. The first abutment rod 42 and the second abutment rod 43 are both welded to the base 1.

[0041] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, the detection member 44 includes a rotating rod 441 and a contact plate 442. The rotating rod 441 is a rectangular rod. One end of the rotating rod 441 is rotatably connected to the rotating shaft 41. The rotating rod 441 can rotate in a direction perpendicular to the axial direction of the rotating shaft 41. It is assumed that the engine rocker arm shaft needs to be detected as an initial state. At this time, the rotating rod 441 is close to the top of the first abutting rod 42. The side of the rotating rod 441 close to the first abutting rod 42 is assumed to be an initial surface. The rotating rod 441 is provided with a fixed groove 4411 on the initial surface, and the fixed groove 4411 is close to the end of the rotating rod 441 away from the rotating shaft 41. The notch of the fixed groove 4411 faces the first abutting rod 42, and the contact plate 442 is located in the fixed groove 4411. The contact plate 442 is fixedly connected to the rotating rod 441 by screws, and the contact plate 442 and the rotating rod 441 can form a cross-sectional difference. The limit seat 22 is provided with an avoidance groove 223 on the side close to the rotating shaft 41 for accommodating the contact plate 442; the engine rocker arm shaft is placed in the placement gap, and a person drives the rotating rod 441 to rotate so that the rotating rod 441 rotates from the limit seat 22 toward the positioning seat 32. When the contact plate 442 contacts the end of the engine rocker arm shaft, it indicates that the engine rocker arm shaft is qualified. On the contrary, when the rotating rod 441 contacts the end of the engine rocker arm shaft away from the fixed groove 4411 or the rotating rod 441 contacts the second abutment rod 43 away from the fixed groove 4411, it indicates that the engine rocker arm shaft is unqualified.

[0042] Reference Figure 2 and Figure 3, a driving component 5 corresponds to a rotating shaft 41, the driving component 5 includes a rotating disk 51 and a handle 52, the rotating disk 51 is vertically arranged, the rotating disk 51 and the rotating shaft 41 are coaxially arranged, and the rotating disk 51 is rotatably connected to the rotating shaft 41, the rotating rod 441 is welded to the rotating disk 51 at one end away from the contact plate 442, the handle 52 is located on the side of the rotating disk 51 away from the limiting seat 22, and the handle 52 is welded to the rotating disk 51.

[0043] The implementation principle of an engine rocker arm assembly inspection fixture in an embodiment of the present application is as follows: when the engine rocker arm assembly inspection fixture is needed, first, the engine rocker arm assembly inspection fixture is moved to a suitable position, then the engine rocker arm shaft is taken out, and the engine rocker arm shaft is placed on the base 1 so that the engine rocker arm shaft is located between the fixing component 3 and the limiting component 2, and then the detection component 4 is started to detect whether the engine rocker arm shaft is qualified.

[0044] When it is necessary to start the detection component 4 to detect the engine rocker shaft, first, the engine rocker shaft is placed between the limit seat 22 and the positioning seat 32, and the first rocker shaft 6 and the second rocker shaft 7 are placed in the corresponding first limit groove 221 and the second limit groove 222. Then, the person holds the handle 52 and rotates the handle 52. The handle 52 drives the rotating disk 51 to rotate, thereby rotating the rotating rod 441, so that the rotating rod 441 rotates from the limit seat 22 toward the positioning seat 32 side. When the contact plate 442 contacts the end of the engine rocker shaft, it indicates that the engine rocker shaft is qualified. On the contrary, when the rotating rod 441 contacts the end of the engine rocker shaft away from the fixed groove 4411 or the rotating rod 441 contacts the second abutment rod 43 away from the fixed groove 4411, it indicates that the engine rocker shaft is unqualified.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An engine rocker arm assembly inspection fixture, characterized in that: The invention comprises a base (1) for placing an engine rocker shaft, a limit assembly (2) and two detection assemblies (4), wherein the limit assembly (2) comprises a limit seat (22), the limit seat (22) is fixed on the base (1), and the limit seat (22) is provided with a plurality of first limit grooves (221) for limiting a first rocker shaft (6) of the engine and a plurality of second limit grooves (222) for limiting a second rocker shaft (7), the first limit grooves (221) and the second limit grooves (222) are both arranged to be open toward one side, the first limit grooves (221) and the second limit grooves (222) constitute a group of placement grooves, and the plurality of placement grooves are arranged in sequence and evenly spaced along a straight line direction; The two detection components (4) are both located on the limiting seat (22); the distribution direction of the two detection components (4) is consistent with the distribution direction of the plurality of placement slots; the detection component (4) comprises a rotating shaft (41) and a detection member (44); the rotating shaft (41) is horizontally fixed to an end wall at one end of the limiting seat (22); the axial direction of the rotating shaft (41) is consistent with the distribution direction of the plurality of placement slots; the detection member (44) comprises a rotating rod (441) and a contact plate (442); one end of the rotating rod (441) is rotatably connected to the rotating shaft (41) The rotating rod (441) can rotate in a direction perpendicular to the axial direction of the rotating shaft (41), and the side of the rotating rod (441) close to the base (1) is assumed to be an initial surface. The rotating rod (441) is provided with a fixing groove (4411) on the initial surface for accommodating the contact plate (442). The fixing groove (4411) is located at the end of the rotating rod (441) away from the rotating shaft (41). The contact plate (442) and the rotating rod (441) can form a cross-sectional difference, and the contact plate (442) is used to contact the end of the engine rocker arm.

2. The engine rocker arm assembly inspection fixture according to claim 1, characterized in that: The detection assembly (4) further comprises a first abutting rod (42) and a second abutting rod (43), wherein the first abutting rod (42) and the second abutting rod (43) are both vertically fixed to a side of the base (1) close to the limit seat (22), and a spacing is left between the first abutting rod (42) and the second abutting rod (43), and the first abutting rod (42) is located on one side of the base (1), and the first abutting rod (42) is close to the limit seat (22). The distribution direction of the first abutting rod (42) and the second abutting rod (43) is perpendicular to the axial direction of the rotating shaft (41), and it is assumed that when the engine rocker arm needs to be detected, it is in an initial state, and the rotating rod (441) is close to the top of the first abutting rod (42).

3. The engine rocker arm assembly inspection fixture according to claim 1, characterized in that: A side of the limiting seat (22) close to the rotating shaft (41) is provided with an avoidance groove (223) for accommodating the contact plate (442).

4. The engine rocker arm assembly inspection fixture according to claim 1, characterized in that: The invention also comprises two driving assemblies (5), one of the driving assemblies (5) corresponds to one of the rotating shafts (41), the driving assembly (5) comprises a rotating disk (51), the rotating disk (51) is vertically arranged, the rotating disk (51) and the rotating shaft (41) are coaxially arranged, the rotating disk (51) is rotatably connected to the rotating shaft (41), and the end of the rotating rod (441) away from the contact plate (442) is fixed to the rotating disk (51).

5. The engine rocker arm assembly inspection fixture according to claim 4, characterized in that: The driving assembly (5) further comprises a handle (52), wherein the handle (52) is fixed to a side of the rotating disk (51) away from the limiting seat (22).

6. The engine rocker arm assembly inspection fixture according to claim 2, characterized in that: The invention also comprises a fixing component (3), wherein the fixing component (3) is located on a side of the base (1) close to the limiting seat (22), and the fixing component (3) comprises a placement seat (31) and a positioning seat (32). The placement seat (31) is located on a side of the limiting seat (22) close to the notch of the first limiting groove (221) and the notch of the second limiting groove (222). The placement seat (31) is fixed to the base (1), and the positioning seat (32) is fixed to a side of the placement seat (31) away from the base (1). A plurality of positioning grooves (321) are provided on a side of the positioning seat (32) close to the limiting seat (22). The positioning grooves (321) and the placement seat (31) form a receiving area for receiving an end of the engine rocker arm shaft away from the limiting seat (22), and a placement gap for placing the engine rocker arm shaft is formed between the positioning seat (32) and the limiting seat (22).

7. The engine rocker arm assembly inspection fixture according to claim 2, characterized in that: The limiting assembly (2) further comprises a fixing seat (21), wherein the fixing seat (21) is located between the limiting seat (22) and the base (1), and the fixing seat (21) is fixed to the base (1); the first limiting groove (221) and the fixing seat (21) form a first placement area for placing a first rocker arm shaft (6) of the engine; and the second limiting groove (222) and the fixing seat (21) form a second placement area for placing a second rocker arm shaft (7) of the engine.

8. The engine rocker arm assembly inspection fixture according to claim 6, characterized in that: The fixing assembly (3) further comprises a plurality of positioning rods (33), wherein the plurality of positioning rods (33) are vertically located in the placement gap, the distribution direction of the plurality of positioning rods (33) is consistent with the distribution direction of the plurality of placement slots, and there is a positioning slot (321) between two adjacent positioning rods (33). The positioning rods (33) are fixed to the base (1), and are used to position the engine rocker arm shaft.

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