Detection tool for detecting diameter of thrust structure of cylinder hole

Abstract

The utility model discloses a gauge for detecting the diameter of a thrust structure of a cylinder hole, which comprises a handle and a detection module, one end of the handle is connected with the middle part of the detection module, the detection module comprises a disc-shaped positioning part and a disc-shaped detection part, the outer diameter of the positioning part is equal to the inner diameter of the cylinder hole, and the outer diameter of the detection part is equal to the inner diameter of the thrust structure. During detection, an operator holds the handle, the positioning part of the detection module is placed into the cylinder hole, the detection module is positioned, and the diameter of the thrust structure is detected. After the diameter gauge for the cylinder hole thrust structure is used, the diameter of the cylinder hole thrust structure can be conveniently, quickly, safely and accurately detected, the working efficiency and quality are improved, the matching problem between a cylinder sleeve and a cylinder body in the assembling process is well solved, and therefore the appearance and quality of overall assembling are improved.

Description

Technical Field

[0001] The utility model relates to the processing of diesel engine parts, in particular to the processing of a cylinder body. Background Art

[0002] As diesel engines become more mature, the assembly of the whole machine is becoming more and more automated and high-precision. In order to better meet the needs of people today, some new processing equipment and processing technologies are used to improve the performance of non-road mobile machinery. Some auxiliary tools happen to be able to improve the deficiencies on the production line and better carry out production work. In the assembly of the cylinder liner, the fit between the cylinder liner and the cylinder body will affect the movement of the piston. For example, if the gap is too large or too small, it will cause the piston to pull the cylinder. The cylinder liner cooperates with the cylinder hole, and the cylinder liner is offset by the thrust structure of the cylinder hole to achieve the axial positioning of the cylinder liner. Therefore, the size of the thrust structure diameter affects the fit between the cylinder liner and the cylinder body.

[0003] There are three processes for machining the thrust structure of the cylinder bore: rough boring, semi-finishing boring, and finishing boring. Rough boring is detected by professional instruments, and semi-finishing boring and finishing boring are detected by dial indicators. However, the depth of the thrust structure is too shallow, which is not convenient to use a dial indicator, and is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model solves the technical problem that the depth of the cylinder hole thrust structure is too shallow, and it is inconvenient to use a dial indicator to detect its diameter.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a gauge for detecting the diameter of a cylinder bore thrust structure, comprising a handle and a detection module, one end of the handle being connected to the middle of the detection module, the detection module comprising a disc-shaped positioning portion and a disc-shaped detection portion, the outer diameter of the positioning portion being equal to the inner diameter of the cylinder bore, and the outer diameter of the detection portion being equal to the inner diameter of the thrust structure.

[0006] During the inspection, the operator holds the handle and puts the positioning part of the inspection module into the cylinder hole. In this way, the inspection module is positioned. After that, observe whether the inspection part can be put into the thrust structure. If the inspection part cannot be put into the thrust structure, it means that the diameter of the thrust structure is too small. If the inspection part can be put into the thrust structure, it is necessary to observe whether there is a gap between the inspection part and the thrust structure. If there is a gap, it means that the diameter of the thrust structure is too large. If there is no gap, it can be judged that the diameter of the thrust structure is qualified.

[0007] One end of the positioning part that penetrates into the cylinder hole is chamfered, which is convenient for the operator to smoothly place the positioning part into the cylinder hole and realize the rapid positioning of the detection module.

[0008] The thickness of the detection part is equal to or less than the depth of the thrust structure, so that the operator can accurately judge whether the detection part is inserted into the thrust structure, and further judge whether the diameter of the thrust structure is qualified.

[0009] The positioning part and the detection part are integrally formed, for example, the detection module is formed by machining a metal blank.

[0010] An external threaded connection section is provided at one end of the handle, a connection hole is provided in the middle of the detection module, the external threaded connection section cooperates with the connection hole, and the nut cooperates with the external threaded connection section to fix the detection module on the handle. As an improvement, the handle includes an inner handle and an outer sleeve, the external threaded connection section is provided at one end of the inner handle, the outer sleeve is a metal sleeve, which is sleeved on the inner handle, and a rubber sleeve is provided between the outer sleeve and the inner handle. During installation, the rubber sleeve is sleeved on the inner handle, and then the outer sleeve is sleeved on the rubber sleeve. In actual operation, the operator holds the outer sleeve and puts the positioning part of the detection module into the cylinder hole. The rubber sleeve is elastic and can absorb the shaking of the operator's hand, which is conducive to the smooth placement of the positioning part into the cylinder hole, and can also prevent the positioning part from damaging the inner wall of the cylinder hole.

[0011] After using the cylinder bore thrust structure diameter gauge, the cylinder bore thrust structure diameter can be conveniently, quickly, safely and accurately detected, which improves work efficiency and quality, and well solves the matching problem between the cylinder liner and the cylinder body during the assembly process, thereby improving the appearance and quality of the overall assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings:

[0013] Figure 1 is a schematic diagram of the inspection fixture;

[0014] Figure 2 for Figure 1 Exploded view of the inspection fixture;

[0015] Figure 3 A schematic diagram showing another perspective of the inspection fixture;

[0016] Figure 4 for Figure 3 Exploded view of the inspection fixture;

[0017] Figure 5 The working diagram of the inspection fixture is shown in FIG.

[0018] Figure 6 This is the cross-sectional view of the improved inspection fixture.

[0019] Explanation of symbols in the figure:

[0020] 10. Handle; 11. External thread connection section; 12. Nut; 13. Inner handle; 14. Outer cover; 15. Rubber cover;

[0021] 20. Detection module; 21. Positioning unit; 22. Detection unit; 23. Connection hole;

[0022] 90. Cylinder bore; 91. Thrust structure. DETAILED DESCRIPTION

[0023] Combination Figure 1 , Figure 2 A gauge for detecting the diameter of a cylinder bore thrust structure includes a handle 10 and a detection module 20. One end of the handle is connected to the middle of the detection module. The detection module includes a disc-shaped positioning portion 21 and a disc-shaped detection portion 22. The outer diameter of the positioning portion is equal to the inner diameter of the cylinder bore 90, and the outer diameter of the detection portion is equal to the inner diameter of the thrust structure 91.

[0024] refer to Figure 5 During the inspection, the operator holds the handle 10 and puts the positioning part of the detection module 20 into the cylinder hole 90, so that the detection module 20 is positioned. After that, observe whether the detection part 22 can be put into the thrust structure 91. If the detection part 22 cannot be put into the thrust structure 91, it means that the diameter of the thrust structure 91 is too small. If the detection part 22 can be put into the thrust structure, it is necessary to observe whether there is a gap between the detection part 22 and the thrust structure. If there is a gap, it means that the diameter of the thrust structure 91 is too large. If there is no gap, it can be judged that the diameter of the thrust structure is qualified.

[0025] like Figure 1 , Figure 2 One end of the positioning portion 21 that penetrates into the cylinder hole is chamfered, which is convenient for the operator to smoothly place the positioning portion 21 into the cylinder hole 90 and realize rapid positioning of the detection module 20.

[0026] The thickness of the detection portion 22 is equal to or less than the depth of the thrust structure 91 , so that the operator can accurately determine whether the detection portion 22 is inserted into the thrust structure 91 , and further determine whether the diameter of the thrust structure is qualified.

[0027] The positioning portion 21 and the detection portion 22 are integrally formed, and the detection module 20 is formed from a metal blank by machining.

[0028] One end of the handle 10 is provided with an external threaded connection section 11, and a connection hole 23 is opened in the middle of the detection module 20. The external threaded connection section cooperates with the connection hole, and the nut 12 cooperates with the external threaded connection section to fix the detection module on the handle 10.

[0029] like Figure 6 As an improvement, the handle 10 includes an inner handle 13 and an outer sleeve 14. The external threaded connection section 11 is provided at one end of the inner handle. The outer sleeve 14 is a metal sleeve, which is sleeved on the inner handle 13. A rubber sleeve 15 is provided between the outer sleeve and the inner handle. During installation, the rubber sleeve 15 is sleeved on the inner handle 13, and then the outer sleeve 14 is sleeved on the rubber sleeve. In actual operation, the operator holds the outer sleeve 14 and puts the positioning part 21 of the detection module into the cylinder hole 90. The rubber sleeve 15 is elastic and can absorb the shaking of the operator's hand, which is conducive to the positioning part 21 being smoothly placed into the cylinder hole 90. Moreover, it can prevent the positioning part 21 from damaging the inner wall of the cylinder hole 90.

[0030] The above contents are only preferred implementation modes of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation mode and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A gauge for detecting the diameter of a cylinder bore thrust structure, comprising a handle (10) and a detection module (20), one end of the handle being connected to the middle of the detection module, characterized in that: The detection module comprises a disc-shaped positioning part (21) and a disc-shaped detection part (22), the outer diameter of the positioning part is equal to the inner diameter of the cylinder hole (90), and the outer diameter of the detection part is equal to the inner diameter of the thrust structure (91).

2. The gauge for detecting the diameter of the cylinder bore thrust structure according to claim 1, characterized in that: One end of the positioning portion (21) that is deeply inserted into the cylinder hole is chamfered.

3. The gauge for detecting the diameter of the cylinder bore thrust structure according to claim 1, characterized in that: The thickness of the detection portion (22) is equal to or smaller than the depth of the thrust structure (91).

4. The gauge for detecting the diameter of the cylinder bore thrust structure according to claim 1, characterized in that: The positioning portion (21) and the detection portion (22) are integrally formed.

5. The gauge for detecting the diameter of the cylinder bore thrust structure according to claim 1, characterized in that: An external threaded connection section (11) is provided at one end of the handle (10), a connection hole (23) is provided in the middle of the detection module (20), the external threaded connection section cooperates with the connection hole, and the nut (12) cooperates with the external threaded connection section to fix the detection module on the handle (10).

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