Rapid detection tool for oil hole position of crankshaft

Abstract

The utility model relates to a crankshaft processing device, and provides a crankshaft oil hole position rapid testing fixture, which comprises a limit rod, a fixed plate fixedly connected with one end of the limit rod, a through hole arranged on the fixed plate along the length direction of the fixed plate, a top plate slidably arranged in the through hole, and scale marks arranged on one side of the top plate far away from the limit rod. The limiting rod is inserted into an oil hole of the crankshaft, and one side of the top plate is arranged outside the through hole. The rapid detection tool for the position of the oil hole of the crankshaft can efficiently detect the oil hole of the crankshaft.

Description

Technical Field

[0001] This utility model relates to the technical field of crankshaft processing equipment, and more specifically, to a quick inspection tool for the position of crankshaft oil holes. Background Technology

[0002] Crankshaft oil holes refer to the holes on the crankshaft connecting rod journals and main journals. They are oil passages for lubricating the friction pairs of moving parts such as the engine crankshaft, camshaft, and piston pins, using a forced lubrication mode. That is, the engine oil pump draws oil from the oil pan and distributes it to each friction pair through the main oil passage, ensuring lubrication, heat dissipation, and cleaning of the friction pairs.

[0003] After machining oil holes on the crankshaft, the position of the oil holes needs to be inspected, mainly by measuring the distance between the oil holes and both ends of the connecting rod journal (or main journal). Common inspection methods include measuring with vernier calipers, but this can only measure oil holes in the connecting rod journal and cannot measure oil holes in the main journal. A coordinate measuring machine (CMM) can also be used, but this takes too long to inspect each oil hole, which would be very time-consuming and labor-intensive for large-scale inspections. Therefore, a more efficient, time-saving, and labor-saving crankshaft oil hole inspection tool can be designed. Utility Model Content

[0004] The purpose of this invention is to provide a quick inspection tool for the location of crankshaft oil holes, which can efficiently detect crankshaft oil holes.

[0005] The embodiments of this utility model are achieved through the following technical solution: The crankshaft oil hole position quick inspection tool of this utility model includes a limiting rod, a fixing plate fixedly connected to one end of the limiting rod, a through hole opened in the fixing plate along the length direction of the fixing plate, a top plate slidably disposed in the through hole, and a scale line disposed on the side of the top plate away from the limiting rod; the limiting rod is inserted into the oil hole of the crankshaft, and one side of the top plate is disposed outside the through hole.

[0006] Furthermore, the end of the limiting rod away from the fixed plate is tapered.

[0007] Furthermore, the fixing plate is arc-shaped and fits against the outer wall of the connecting rod journal of the crankshaft.

[0008] Furthermore, the top plate is provided in pairs, both of which are slidably disposed within the through hole, and the pair of top plates are respectively disposed at both ends of the through hole.

[0009] Furthermore, the pair of top plates are connected by a spring; the spring is disposed within the through hole.

[0010] Furthermore, the spring is provided in pairs, with the pair of springs respectively located on both sides of the fixed plate.

[0011] Furthermore, a sliding hole is provided on the side of the fixing plate away from the limiting rod, and the sliding hole is connected to the through hole; a lever is provided at the end of each pair of top plates that are close to each other, and the lever is located in the sliding hole.

[0012] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects: The crankshaft oil hole position quick inspection tool of this utility model allows for direct insertion of the limiting rod into the oil hole of the crankshaft connecting rod journal. Then, the top plate is slid to fit against the walls at both ends of the crankshaft connecting rod journal. The position of the oil hole can then be quickly determined by reading the scale lines on the top plate. This significantly improves the efficiency of crankshaft oil hole quality inspection, enabling efficient batch quality inspection of crankshaft oil holes without requiring highly specialized skills from workers. Furthermore, for oil holes of different diameters, only a matching limiting rod needs to be replaced, thus allowing for good adaptation and use for various crankshaft models. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the structure of the crankshaft oil hole position quick inspection tool provided in this embodiment of the present invention during use;

[0015] Figure 2 A schematic diagram of the structure of the quick-access crankshaft oil hole position gauge provided in this embodiment of the utility model;

[0016] Figure 3 This is a structural schematic diagram of the fixing plate portion provided in an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the through hole portion provided in an embodiment of the present utility model;

[0018] Figure 5 This is a structural schematic diagram of the top plate portion provided in an embodiment of the present utility model;

[0019] Figure 6 This is a schematic diagram of the crankshaft portion provided in an embodiment of the present utility model.

[0020] Icons: 11-Crankshaft, 12-Connecting rod neck, 13-Oil hole, 21-Limit rod, 22-Fixed plate, 23-Through hole, 24-Sliding hole, 25-Top plate, 26-Scale line, 27-Spring, 28-Pulley. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example

[0027] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 - Appendix Figure 6As shown, the crankshaft oil hole position quick inspection tool of this embodiment includes a limiting rod 21, a fixing plate 22 fixedly connected to one end of the limiting rod 21, a through hole 23 opened in the fixing plate 22 along the length direction of the fixing plate 22, a top plate 25 slidably disposed in the through hole 23, and a scale line 26 disposed on the side of the top plate 25 away from the limiting rod 21; the limiting rod 21 is inserted into the oil hole 13 of the crankshaft 11, and one side of the top plate 25 is disposed outside the through hole 23. Specifically, in use, the limiting rod 21 can be directly inserted into the oil hole 13 of the connecting rod neck 12 of the crankshaft 11, and then the top plate 25 is slid so that the top plate 25 fits against the walls at both ends of the connecting rod neck 12 of the crankshaft 11. At this time, the position of the oil hole 13 can be quickly determined by the reading of the scale line 26 on the top plate 25. It can significantly improve the quality inspection efficiency of the oil hole 13 of crankshaft 11, and can also efficiently complete the batch quality inspection of the oil hole 13 of crankshaft 11, without requiring workers to have high professional skills. In addition, for oil holes 13 of different diameters, only the matching limit rod 21 needs to be replaced, so it can be well adapted for use on various models of crankshaft 11.

[0028] In this embodiment, the end of the limiting rod 21 furthest from the fixing plate 22 is tapered. Specifically, this allows the limiting rod 21 to be inserted into the oil hole 13 more quickly.

[0029] In this embodiment, the fixing plate 22 is arc-shaped and fits against the outer wall of the connecting rod neck 12 of the crankshaft 11. Specifically, this can better fix the position of the fixing plate 22, so that when the top plate 25 moves, its movement direction can be better along the axis of the crankshaft 11, and the top plate 25 can fit more precisely and fully against the inner wall of the connecting rod.

[0030] In this embodiment, a pair of top plates 25 are provided, both of which are slidably disposed within the through hole 23, and the pair of top plates 25 are respectively disposed at both ends of the through hole 23. Specifically, by simultaneously positioning the position of the oil hole 13 using the pair of top plates 25, it is possible to more efficiently determine whether the position of the oil hole 13 is centered.

[0031] In this embodiment, a pair of top plates 25 are connected by springs 27; the springs 27 are located within the through hole 23. A pair of springs 27 are provided, each located on one side of the fixing plate 22. Specifically, this eliminates the need to manually press the top plates 25 against the inner wall of the connecting rod neck 12; the springs 27 allow the top plates 25 to adhere to the inner wall of the connecting rod neck 12. This makes the entire operation more efficient, faster, and more standardized.

[0032] In this embodiment, the fixed plate 22 has a sliding hole 24 on the side away from the limiting rod 21, and the sliding hole 24 is connected to the through hole 23; each of the pair of top plates 25 has a paddle 28 at one end close to each other, and the paddle 28 is located in the sliding hole 24. Specifically, since the spring 27 pushes the pair of top plates 25 to both sides, in the natural state, the distance between the two edges of the pair of top plates 25 is greater than the length between the two inner walls of the crankshaft 11 connecting rod neck 12. Therefore, before attaching the fixed plate 22 to the connecting rod neck 12, the pair of paddles 28 can be pinched with fingers to gather the pair of top plates 25, so that they can smoothly enter between the inner walls of the connecting rod neck 12.

[0033] In summary, the crankshaft oil hole position quick inspection tool of this embodiment allows for direct insertion of the limiting rod 21 into the oil hole 13 of the connecting rod neck 12 of the crankshaft 11. Then, the top plate 25 is slid to fit against the walls at both ends of the connecting rod neck 12. The position of the oil hole 13 can then be quickly determined by reading the scale line 26 on the top plate 25. This significantly improves the quality inspection efficiency of the crankshaft 11 oil hole 13, enabling efficient batch quality inspection of the crankshaft 11 oil hole 13 without requiring highly specialized skills from workers. Furthermore, for oil holes 13 of different diameters, only the corresponding limiting rod 21 needs to be replaced, thus allowing for good compatibility with various crankshaft 11 models.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-access tool for locating crankshaft oil holes, characterized in that: It includes a limiting rod (21), a fixing plate (22) fixedly connected to one end of the limiting rod (21), a through hole (23) opened in the fixing plate (22) along the length direction of the fixing plate (22), a top plate (25) slidably disposed in the through hole (23), and a scale line (26) disposed on the side of the top plate (25) away from the limiting rod (21); The limiting rod (21) is inserted into the oil hole (13) of the crankshaft (11), and one side of the top plate (25) is located outside the through hole (23).

2. The quick crankshaft oil hole position inspection tool according to claim 1, characterized in that: The end of the limiting rod (21) away from the fixing plate (22) is tapered.

3. The quick crankshaft oil hole position inspection tool according to claim 1, characterized in that: The fixing plate (22) is an arc shape that fits against the outer wall of the connecting rod neck (12) of the crankshaft (11).

4. The quick crankshaft oil hole position inspection tool according to claim 1, characterized in that: The top plate (25) is provided in a pair, and both of the top plates (25) are slidably disposed in the through hole (23). The top plates (25) are respectively disposed at both ends of the through hole (23).

5. The quick crankshaft oil hole position inspection tool according to claim 4, characterized in that: The pair of top plates (25) are connected by a spring (27); the spring (27) is located in the through hole (23).

6. The quick crankshaft oil hole position inspection tool according to claim 5, characterized in that: The springs (27) are provided in pairs, and the pair of springs (27) are respectively provided on both sides of the fixing plate (22).

7. The quick crankshaft oil hole position inspection tool according to claim 5, characterized in that: The fixing plate (22) has a sliding hole (24) on the side away from the limiting rod (21), and the sliding hole (24) is connected to the through hole (23); Each of the two top plates (25) is provided with a lever (28) at one end close to the other, and the lever (28) is located in the sliding hole (24).

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