Diesel engine cylinder block through bolt hole interference inspection tool

Abstract

The utility model discloses a diesel engine cylinder body through bolt hole interference inspection tool which comprises a measuring rod, a positioning block and a measuring block. One end of the measuring rod penetrates through the positioning block, the measuring rod and the positioning block are in clearance fit and can slide back and forth, and the other end of the measuring rod is fixedly provided with a measuring block; the measuring block comprises a mediation measuring block and a standard measuring block, the mediation measuring block is arranged at the other end of the measuring rod close to the positioning block, the standard measuring block is arranged at the other end of the measuring rod far away from the positioning block, and a ball pin is arranged on the mediation measuring block. According to the utility model, the measuring block is matched with the measuring rod to slide on the positioning block, so that the specific position of the interference of the inner wall of the through bolt hole can be obtained, and the interference diameter size can also be obtained. Meanwhile, the tool provided by the utility model can be used for various types of cylinder bodies, and has the characteristics of strong stability, high safety, improved inspection quality and inspection efficiency, and saved operation cost at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine cylinder body inspection, in particular to a diesel engine cylinder body through-bolt hole interference inspection tool. Background Art

[0002] The through-bolt holes in the diesel engine cylinder block are cast blanks. Due to their deep cavity structure, their verticality and diameter are affected by casting factors. This can cause interference between the through-bolts and the inner wall of the holes during assembly. To ensure that the through-bolts can pass through the through-bolt holes smoothly without interference, an interference check process must be added.

[0003] There are two existing methods for checking interference of through-bolt holes in this field. One of the inspection methods is to measure the diameter of the through-bolt hole and measure the verticality with a plumb line. This inspection method is inefficient and the measurement is not comprehensive. The protrusion inside the through-bolt hole cannot be detected at all, and the inspection effect is not good in actual application. Another inspection method is to make a shaft tool with a diameter consistent with the through-bolt for inspection. This inspection method tool is heavy and difficult to operate, and the interference position cannot be accurately determined. Moreover, due to different machine models, the specifications of the through-bolts are also different, and shaft tooling of different specifications needs to be made. The bolt length is more than 1 meter, and the tooling production cost and maintenance cost are high. In addition, the existing technology cannot accurately determine the diameter of the interference. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a diesel engine cylinder block through-bolt hole interference inspection tool. Combined with the actual needs of on-site inspection, the tool is lighter and can meet the use of various types of cylinder blocks, so as to effectively perform interference inspection between the through-bolt and the hole wall, improve the inspection quality and efficiency, and save operating costs.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a diesel engine cylinder block through-bolt hole interference inspection tool, comprising: a measuring rod, a positioning block and a measuring block;

[0007] One end of the measuring rod passes through the positioning block, the two are clearance-fitted and can slide back and forth, and a measuring block is fixedly installed on the other end of the measuring rod; the measuring block includes an adjustment measuring block and a standard measuring block, wherein the adjustment measuring block is installed at the other end of the measuring rod close to the positioning block, and the standard measuring block is installed away from the positioning block, and a ball pin is installed on the adjustment measuring block.

[0008] As a further technical solution, the positioning block is clearance-matched with the through-bolt hole of the cylinder body to achieve positioning support.

[0009] As a further technical solution, a pin hole is provided on the adjustment and measurement block.

[0010] As a further technical solution, the ball pin is inserted into the pin hole and can move up and down in the pin hole.

[0011] As a further technical solution, a damping pad is provided between the ball stud and the pin hole.

[0012] As a further technical solution, the damping pad is used to prevent the ball stud from automatically falling when it is not squeezed.

[0013] As a further technical solution, the positioning block, the adjustment measurement block and the standard measurement block are all horseshoe-shaped.

[0014] As a further technical solution, both the adjustment measuring block and the standard measuring block are provided with grooves.

[0015] As a further technical solution, the width and depth of the groove match the width and height of the measuring rod.

[0016] As a further technical solution, the length of the measuring rod is made according to the maximum diesel engine cylinder block.

[0017] One or more technical solutions of the present invention have the following beneficial effects:

[0018] This utility model simulates the installation of through-bolts. The design of the inspection tool body uses the through-bolt hole of the cylinder block as the basic positioning. The positioning block is clear of the through-bolt hole of the cylinder block. The outer diameter of the standard measuring block is the same as the cylinder block through-bolt being tested. This can effectively detect the existence of interference and determine the interference location. By adjusting the measuring block, the diameter of the interference location can be accurately measured.

[0019] This tooling design utilizes a universal measuring rod for all cylinder blocks, meeting the needs of a wide variety of cylinder blocks. This effectively detects interference between through-bolts and hole walls. The tooling measuring rod is constructed of aluminum alloy, resulting in a lightweight, stable structure. This provides enhanced stability and safety, improving inspection quality and efficiency while also reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 This is a tooling diagram for checking interference of through-bolt holes in a diesel engine cylinder block provided by the utility model;

[0022] Figure 2 A tooling diagram of the measuring rod in the inspection tooling provided by the utility model;

[0023] Figure 3 A tooling diagram of a positioning block in an inspection tooling provided by the present invention;

[0024] Figure 4 A diagram of the tooling for adjusting the measuring block in the inspection tooling provided by the present invention;

[0025] Figure 5 A tooling diagram of the damping pad in the inspection tooling provided by the utility model;

[0026] Figure 6 A tooling diagram of the ball stud in the inspection tooling provided by the utility model;

[0027] Figure 7 A tooling diagram of the standard measuring block in the inspection tooling provided by the utility model;

[0028] Among them: 1: measuring rod; 2: positioning block; 3: adjusting measuring block; 4: damping pad; 5: ball stud; 6: standard measuring block. DETAILED DESCRIPTION

[0029] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0030] Example 1

[0031] like Figure 1As shown, in this embodiment, taking the G50 model cylinder block as an example, a diesel engine cylinder block through-bolt hole interference inspection tool is provided, including: a measuring rod 1, a positioning block 2 and a measuring block; wherein one end of the measuring rod 1 passes through the positioning block 2, the two are clearance-fitted, and the measuring rod 1 can slide back and forth on the positioning block 2, and a measuring block is fixedly installed on the other end of the measuring rod 1, and the measuring block includes an adjustment measuring block 3 and a standard measuring block 6. Specifically: an adjustment measuring block 3 is installed at the other end of the measuring rod 1 close to the positioning block 2, and a standard measuring block 6 is installed away from the positioning block 2. At the same time, a ball stud 5 is installed on the adjustment measuring block 3. The outer diameter of the standard measuring block 6 in the measuring block is the same as that of the through-bolt of the cylinder body to be measured. When combined with the measuring rod 1 sliding on the positioning block 2, it can effectively check whether there is interference on the inner wall of the through-bolt hole, and the specific position of the interference can be obtained according to the length of the extended measuring rod 1; the adjustment measuring block 3 in the measuring block is equipped with a ball pin 5, and when combined with the measuring rod 1 sliding on the positioning block 2, when encountering interference, the ball pin 5 is squeezed and falls to a certain height. According to the height difference before and after squeezing, the diameter size of the interference position can be accurately obtained.

[0032] like Figure 2 As shown, the length of the measuring rod 1 is made according to the largest diesel engine cylinder block model, which can realize the universal main body measuring rod of all models. In this embodiment, the measuring rod 1 is made of aluminum alloy profile, which is light in overall weight, stable in structure, strong in stability and high in safety. At the same time, the measuring rod 1 is a standard structure and does not need to be customized, which saves inspection and operation costs. Figure 3 As shown, the positioning block 2 is in clearance with the through-bolt hole of the cylinder body, and is used to realize positioning support during the interference detection of the through-bolt hole. Figure 4-6 As shown, four pin holes are provided on the adjustment measuring block 3, and the ball pin is inserted into the pin hole and can move up and down in the pin hole. A damping pad is provided between the ball pin and the pin hole. The damping pad can effectively prevent the ball pin from falling freely when it is not squeezed, making it more accurate to calculate the height difference before and after the ball pin is compressed, and thus the size of the interference position diameter can be obtained more accurately.

[0033] like Figure 3 、 4 As shown in 7 , the positioning block 2 , the adjustment measuring block 3 and the standard measuring block 6 have the same overall appearance, and both the adjustment measuring block 3 and the standard measuring block 6 are provided with grooves, and the width and depth of the grooves match the width and height of the measuring rod 1 .

[0034] The above-mentioned diesel engine cylinder block through-bolt hole interference inspection tool has the following specific inspection method: the positioning block 2 is clearance-matched with the cylinder block through-bolt hole for positioning support, one end of the measuring rod 1 passes through the positioning block 2 with clearance fit and can slide back and forth, and at the same time the measuring rod 1 passes through the through-bolt hole, and the adjustment measuring block 3 and the standard measuring block 6 are respectively installed on the other end of the measuring rod 1, and the damping pad 4 and the ball stud 5 are installed on the adjustment measuring block 3. Before checking the through-bolt hole interference, it is necessary to adjust the extension height of the ball stud to the set through-gauge height. After starting the inspection, when the sliding measuring rod encounters interference, the ball stud 5 will be squeezed and reduced in height. By adjusting the height difference before and after the ball stud on the measuring block is squeezed, the diameter size of the interference position can be calculated; when the inner wall of the through-hole interferes with the standard measuring block 6, it is an unqualified position. The unqualified position can be further determined by the length of the measuring rod.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A diesel engine cylinder block through bolt hole interference inspection tool, characterized in that: include: Measuring rods, positioning blocks and measuring blocks; One end of the measuring rod passes through the positioning block, the two are clearance-fitted and can slide back and forth, and a measuring block is fixedly installed on the other end of the measuring rod; the measuring block includes an adjustment measuring block and a standard measuring block, wherein the adjustment measuring block is installed at the other end of the measuring rod close to the positioning block, and the standard measuring block is installed away from the positioning block, and a ball pin is installed on the adjustment measuring block.

2. A diesel engine cylinder block through-bolt hole interference inspection tool as claimed in claim 1, characterized in that: The positioning block is clearance-matched with the through-bolt hole of the cylinder body to achieve positioning support.

3. A diesel engine cylinder block through-bolt hole interference inspection tool as claimed in claim 1, characterized in that: The adjustment and measurement block is provided with a pin hole.

4. A diesel engine cylinder block through-bolt hole interference inspection tool as claimed in claim 3, characterized in that: The ball pin is inserted into the pin hole and can move up and down in the pin hole.

5. A diesel engine cylinder block through-bolt hole interference inspection tool as claimed in claim 4, characterized in that: A damping pad is provided between the ball pin and the pin hole.

6. A diesel engine cylinder block through-bolt hole interference inspection tool as claimed in claim 5, characterized in that: The damping pad is used to prevent the ball stud from automatically falling when it is not squeezed.

7. A diesel engine cylinder block through-bolt hole interference inspection tool as claimed in claim 1, characterized in that: The positioning block, the adjustment measuring block and the standard measuring block are all horseshoe-shaped.

8. The diesel engine cylinder block through-bolt hole interference inspection tool as claimed in claim 1, characterized in that: The adjustment measuring block and the standard measuring block are both provided with grooves.

9. A diesel engine cylinder block through-bolt hole interference inspection tool as claimed in claim 8, characterized in that: The width and depth of the groove match the width and height of the measuring rod.

10. The diesel engine cylinder block through-bolt hole interference inspection tool as claimed in claim 1, characterized in that: The length of the measuring rod is made according to the maximum diesel engine cylinder block.

Images