Cooling water channel drilling device and diesel engine

Abstract

The utility model discloses a cooling water channel drilling device and a diesel engine, the cooling water channel drilling device comprises a drill jig arranged on the surface of a machine body, and the machine body is provided with a mounting hole; the pressing assembly is arranged in the mounting hole and is used for fixing the drill jig on the machine body; the drill bushing is arranged on the drill jig and is used for being obliquely inserted into the machine body; the stop assembly is arranged on the drill jig and used for fixing the drill bushing; and the drilling assembly is arranged in the drilling sleeve and can drill the machine body along the drilling sleeve. According to the cooling water channel drilling device and the diesel engine, positioning of the drilling assembly is achieved through the drilling jig, the pressing assembly, the drilling sleeve and the locking assembly, it is ensured that the drilling assembly only needs to conduct drilling operation along the drilling sleeve, it can be ensured that the drilling process is stable and rapid, the correct position of a workpiece is ensured, hole position movement caused by external force is avoided, and the drilling efficiency is improved. The machining quality is effectively stabilized, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling equipment, and more specifically, to a cooling water channel drilling device. In addition, the utility model also relates to a diesel engine including the cooling water channel drilling device. Background Art

[0002] The engine block is a critical component of the engine. The location of the cooling water channel holes in the engine block determines the direction of water inflow to the cooling cylinder liners. This direction of water inflow is one of the causes of bubble corrosion on the cylinder liner surface. Once the position of the water channel holes shifts, the water inflow direction changes, accelerating bubble corrosion on the cylinder liner surface, affecting the service life of the cylinder liner and, consequently, the quality, reliability, and service life of the diesel engine. The cooling water channel holes are inclined holes at a certain angle to the engine block. Traditional machining methods generally involve marking to determine the approximate hole location, then aligning the holes along the marked lines before drilling. Relying on marking to determine the machining position of the holes makes it difficult to ensure geometric accuracy.

[0003] The cooling water channel holes in the engine body are inclined and long, requiring strict verticality and positioning. The current method of drilling holes based on marking results in the hole entrance being easily displaced due to cutting forces and the rough surface at the hole entrance. Furthermore, the long drill bit can easily deflect during machining, making it difficult to process. This results in low part yields and inconsistent part quality. Repeated marking for alignment is unsuitable for mass production and inefficient.

[0004] In summary, how to improve the drilling efficiency of the cooling water channel holes of the engine body is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a cooling water channel drilling device, which can be directly installed on the surface of the machine body, and guides the drilling assembly through the drill sleeve, thereby achieving rapid drilling of cooling water channel holes and improving drilling efficiency.

[0006] Another object of the present invention is to provide a diesel engine comprising the cooling water channel drilling device.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A cooling water channel drilling device, comprising:

[0009] A drilling jig is provided on the surface of the machine body, and the machine body is provided with a mounting hole;

[0010] A clamping assembly, provided in the mounting hole and used to fix the drilling jig to the machine body;

[0011] A drill sleeve is arranged in the drill jig, and the drill sleeve is used for obliquely inserting into the inside of the machine body;

[0012] A stop component is arranged in the drill jig and is used for fixing the drill sleeve;

[0013] A drilling component is arranged in the drill sleeve and can drill the machine body along the drill sleeve.

[0014] Preferably, the pressing component comprises a pressing bolt, the pressing bolt penetrates through the drill jig and is threadedly connected with the machine body.

[0015] Preferably, the pressing component further comprises a fixing sleeve, the fixing sleeve is sleeved on the pressing bolt and is arranged between the pressing bolt and the drill jig, and the fixing sleeve is used for realizing the positioning of the pressing bolt.

[0016] Preferably, the drill sleeve comprises a detachable drill sleeve, the detachable drill sleeve is a tubular structure, a limiting portion is arranged on the outer periphery of one end of the detachable drill sleeve which is away from the machine body, and the stop component is clamped with the limiting portion to realize the positioning of the detachable drill sleeve.

[0017] Preferably, the drill sleeve further comprises a fixed drill sleeve, a through hole is arranged on the drill jig, the fixed drill sleeve is an annular structure and is arranged in the through hole, the fixed drill sleeve is in interference fit with the drill jig, and the detachable drill sleeve is arranged on the inner periphery of the fixed drill sleeve.

[0018] Preferably, the stop component comprises a stop screw, the stop screw is threadedly connected with the drill jig, and the large end of the stop screw is clamped with the limiting portion of the detachable drill sleeve.

[0019] Preferably, the drilling component comprises a drill bit and a driving structure, the drill bit is arranged on the output end of the driving structure, and the driving structure can drive the drill sleeve to move along the axial direction of the detachable drill sleeve and drill.

[0020] Preferably, the included angle between the central axis of the through hole on the drill sleeve and the surface of the machine body is an acute angle.

[0021] A diesel engine comprises a cooling water channel drilling device, and the cooling water channel drilling device is any one of the above.

[0022] The drill jig of the cooling water channel drilling device is installed on the surface of the machine body through the pressing component, the drill sleeve is installed on the drill jig through the stop component, the drill sleeve can be inserted into the inside of the machine body, the machine body can be drilled through the drilling component, the drilling component can drill the machine body along the drill sleeve, the drilling process can be rapidly realized by fixing the drill jig at the specified position on the machine body, and the drilling efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 This is a cross-sectional view of the cooling water channel drilling device provided by the utility model.

[0025] Reference numerals:

[0026] 1-machine body; 2-drilling jig; 3-tightening bolt; 4-fixing sleeve; 5-removable drill sleeve; 6-fixed drill sleeve; 7-stop screw. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The core of the utility model is to provide a cooling water channel drilling device, which can be directly attached to the surface of the machine body to drill the cooling water channel.

[0029] Another core of the present invention is to provide a diesel engine comprising the cooling water channel drilling device.

[0030] It should be noted that the directions or positional relationships indicated by “upper”, “lower”, “front”, “back”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application.

[0031] The present application provides a cooling water channel drilling device, comprising: a drilling jig 2, a pressing assembly, a drill sleeve, a stop assembly and a drilling assembly;

[0032] The drilling jig 2 is provided on the surface of the machine body 1, and the machine body 1 is provided with a mounting hole;

[0033] A clamping assembly, provided in the mounting hole and used to fix the drilling jig 2 to the machine body 1;

[0034] A drill sleeve is provided on the drilling jig 2 and is used for oblique insertion into the interior of the machine body 1;

[0035] A stop assembly, provided on the drilling jig 2 and used to fix the drill sleeve;

[0036] The drilling assembly is arranged in the drill sleeve and can drill holes in the machine body 1 along the drill sleeve.

[0037] For details, please refer to the attached Figure 1 The drill jig 2 is attached to the outer surface of the machine body 1, and the clamping assembly, drill sleeve and stop assembly are all arranged on the drill jig 2. The clamping assembly can fix the drill jig 2 on the surface of the machine body 1. A drill sleeve is provided on the drill jig 2, and the drill sleeve is installed on the drill jig 2 through the stop assembly. The drill sleeve passes through the drill jig 2 and can be inserted into the interior of the machine body 1. On this basis, a drilling assembly is also provided. The drill sleeve is a tubular structure. The drilling assembly can move along the inside of the drill sleeve and drill holes in the machine body, which can ensure that the drilling process is stable and fast, ensure the correct position of the workpiece, avoid the movement of the hole position caused by external force, effectively stabilize the processing quality, and improve the processing efficiency.

[0038] On the basis of the above embodiment, the clamping assembly includes a clamping bolt 3 , which passes through the drilling jig 2 and is threadedly connected to the machine body 1 .

[0039] Specifically, a mounting hole is provided on the drill jig 2 near the edge, and the mounting hole passes through the upper and lower end faces of the drill jig 2. However, for the mounting hole, an annular protrusion is provided at the lower end inside the mounting hole, and the clamping bolt 3 can pass through the mounting hole from top to bottom. A threaded hole is provided at a specified position on the surface of the body 1, and the clamping bolt 3 can realize a detachable connection between the drill jig 2 and the surface of the body 1. When drilling is required, the drill jig 2 is installed on the body 1 by the clamping bolt 3. When drilling is not required, the drill jig 2 can be removed from the body 1 by the clamping bolt 3, which is easy to operate.

[0040] On the basis of the above embodiment, the clamping assembly further includes a fixing sleeve 4 , which is sleeved on the clamping bolt 3 and disposed between the clamping bolt 3 and the drilling template 2 , and is used to achieve positioning of the clamping bolt 3 .

[0041] Specifically, the fixing sleeve 4 is arranged in the mounting hole on the drill jig 2, and the fixing sleeve 4 is arranged on the outer periphery of the clamping bolt 3. The fixing sleeve 4 can realize the position positioning of the clamping bolt 3 to prevent the clamping bolt 3 from moving in the process of fixing the drill jig 2, so as to ensure the structural stability of the drill jig 2 and the stability of the drilling path during the drilling process.

[0042] Based on the above embodiment, the drill sleeve includes a detachable drill sleeve 5, which is a tubular structure. A limiting portion is provided on the outer periphery of one end of the detachable drill sleeve 5 facing away from the body 1, and the stop assembly is engaged with the limiting portion to achieve the positioning of the detachable drill sleeve 5.

[0043] Specifically, an annular limiting portion is provided at the upper end of the detachable drill sleeve 5, and one end of the annular limiting portion facing the stop assembly is a step-shaped structure. The stop assembly is buckled on the first step structure on the limiting portion to achieve the limiting fixation of the detachable drill sleeve 5 on the drill template 2.

[0044] Based on the above embodiment, the drill sleeve also includes a fixed drill sleeve 6. A through hole is provided on the drill jig 2. The fixed drill sleeve 6 is an annular structure and is provided in the through hole. The fixed drill sleeve 6 is interference fit with the drill jig 2. The detachable drill sleeve 5 is provided on the inner periphery of the fixed drill sleeve 6.

[0045] Specifically, the fixed drill sleeve 6 is a tubular structure, and there is an interference fit between the fixed drill sleeve 6 and the drill jig 2. The fixed drill sleeve 6 is cold-installed on the drill jig 2. The inner circumference size of the fixed drill sleeve 6 is the same as the outer circumference size of the detachable drill sleeve 5, and the outer circumference size of the fixed drill sleeve 6 matches the size of the through hole on the drill jig 2. In this way, the fixed drill sleeve 6 can prevent the detachable drill sleeve 5 from swinging during the drilling process, ensuring that the drilling position is stable.

[0046] On the basis of the above embodiment, the stop assembly includes a stop screw 7, which is threadedly connected to the drill jig 2, and the big head end of the stop screw 7 is clamped with the limiting part of the detachable drill sleeve.

[0047] Specifically, there is a threaded connection between the stop screw 7 and the drill jig 2. The upper end of the stop screw 7 is a large head end, and the lower end is a threaded end. The lower end of the stop screw 7 is inserted into the drill jig 2 and realizes a threaded connection with the drill jig 2. The large head end of the upper end of the stop screw 7 can realize the positioning of the detachable drill sleeve 5. The detachable drill sleeve 5 is replaceable. When it needs to be replaced, you only need to unscrew the stop screw 7. It is easy to operate and easy to replace.

[0048] On the basis of the above embodiment, the drilling assembly includes a drill bit and a driving structure. The drill bit is arranged at the output end of the driving structure. The driving structure can drive the drill sleeve to move along the axial direction of the detachable drill sleeve 5 and drill holes.

[0049] Specifically, the drill jig 2, the clamping assembly, the drill sleeve and the stop assembly can only determine the drilling position, and the drilling process needs to be completed through the drilling assembly. Generally speaking, the drilling assembly can be set separately on the outside of the body 1, or directly on the drill sleeve. The driving structure can extend the drill bit into the interior of the detachable drill sleeve 5 and move along the detachable drill sleeve 5 toward the interior of the body 1, thereby realizing the drilling process.

[0050] On the basis of the above embodiment, the angle between the central axis of the through hole on the drill sleeve and the surface of the machine body 1 is an acute angle.

[0051] For details, please refer to the attached Figure 1 And attach Figure 1Taking the direction in as a reference, the upper end face and the lower end face of the drill jig 2 are not parallel to each other. The lower end face of the drill jig 2 fits the surface of the engine body 1, while the upper end face of the drill jig 2 is not parallel to the engine body 1, and the angle between the central axis of the through hole set on the drill jig 2 and the surface of the engine body 1 is acute, that is, the drill hole needs to be an inclined hole, which is the same as the background technology and needs to have a certain angle with the engine body 1 to ensure that the cooling water flows more fully and evenly between the cylinders of the diesel engine to achieve an effective cooling effect.

[0052] In addition to the above-mentioned cooling water channel drilling device, the present invention also provides a diesel engine including the cooling water channel drilling device disclosed in the above-mentioned embodiment. For the structures of other parts of the diesel engine, please refer to the prior art and will not be described in detail herein.

[0053] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0054] The above describes in detail the cooling water channel drilling device and diesel engine provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A cooling water channel drilling device, characterized in that: include: A drilling jig (2) is provided on the surface of a machine body (1), wherein the machine body (1) is provided with a mounting hole; A clamping assembly, provided in the mounting hole and used to fix the drilling jig (2) to the machine body (1); A drill sleeve, provided on the drill jig (2), the drill sleeve being used for obliquely inserting into the interior of the machine body (1); A stop assembly, provided on the drill jig (2) and used to fix the drill sleeve; A drilling assembly is arranged in the drill sleeve and can drill holes in the machine body (1) along the drill sleeve.

2. The cooling water channel drilling device according to claim 1, characterized in that: The clamping assembly comprises a clamping bolt (3), which passes through the drilling template (2) and is threadedly connected to the machine body (1).

3. The cooling water channel drilling device according to claim 2, characterized in that: The clamping assembly further comprises a fixing sleeve (4), the fixing sleeve (4) being sleeved on the clamping bolt (3) and arranged between the clamping bolt (3) and the drilling jig (2), the fixing sleeve (4) being used to achieve positioning of the clamping bolt (3).

4. The cooling water channel drilling device according to any one of claims 1 to 3, characterized in that: The drill sleeve comprises a detachable drill sleeve (5), the detachable drill sleeve (5) being a tubular structure, a limiting portion being provided on the outer periphery of one end of the detachable drill sleeve (5) away from the machine body (1), and the stop assembly being engaged with the limiting portion to achieve positioning of the detachable drill sleeve (5).

5. The cooling water channel drilling device according to claim 4, characterized in that: The drill sleeve further comprises a fixed drill sleeve (6), a through hole is provided on the drill jig (2), the fixed drill sleeve (6) is an annular structure and is provided in the through hole, the fixed drill sleeve (6) and the drill jig (2) are interference fit, and the detachable drill sleeve (5) is provided on the inner periphery of the fixed drill sleeve (6).

6. The cooling water channel drilling device according to claim 5, characterized in that: The stop assembly comprises a stop screw (7), the stop screw (7) is threadedly connected to the drill template (2), and the large head end of the stop screw (7) is clamped with the limiting portion of the detachable drill sleeve.

7. The cooling water channel drilling device according to claim 6, characterized in that: The drilling assembly comprises a drill bit and a driving structure, wherein the drill bit is arranged at the output end of the driving structure, and the driving structure is capable of driving the drill sleeve to move along the axial direction of the detachable drill sleeve (5) and drill a hole.

8. The cooling water channel drilling device according to claim 7, characterized in that: The angle between the central axis of the through hole on the drill sleeve and the surface of the machine body (1) is an acute angle.

9. A diesel engine comprising a cooling water channel drilling device, characterized in that: The cooling water channel drilling device is the cooling water channel drilling device according to any one of claims 1 to 8.

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