A tool for detecting and grinding the sealing cone surface of the methanol dual-fuel cylinder head alcohol injector hole

Abstract

The utility model provides a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool, including a cone surface detection tool for detecting the alcohol injector hole sealing cone surface; the cone surface detection tool includes a main detection rod, the top of the main detection rod is provided with a first positioning column, the top of the first positioning column is provided with a first hand-held rod, the bottom end of the main detection rod is provided with a first conical column, the bottom end transition of the first conical column is provided with a second conical column, and the end of the second conical column is provided with a first bottom end positioning column. The detection of the alcohol injector hole sealing cone surface is completed by designing a special detection tool, and the alcohol injector hole sealing cone surface with processing defects is ground by designing a special grinding tool until it is qualified for detection, ensuring that the cylinder head alcohol injector hole sealing cone surface of the finished product shipped meets the requirements of the drawing.

Description

Technical Field

[0001] The utility model relates to the technical field of dual-fuel cylinder head processing, and mainly relates to a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool. Background Art

[0002] One of our company's products is a methanol fuel cylinder head, on which an alcohol injector hole is machined. After the alcohol injector hole is machined, the sealing of the cone surface needs to be tested. However, this type of cylinder head is a brand new design and is being machined for the first time, so it is impossible to obtain a finished methanol injector. Currently, there is a lack of effective testing methods during the machining process of the sealing cone surface of the alcohol injector hole, and there is also a lack of repair methods if the sealing cone surface of the alcohol injector hole fails the test. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool, including a cone surface detection tool for detecting the alcohol injector hole sealing cone surface;

[0004] The conical surface detection tooling includes a main detection rod, a first positioning column is arranged on the top of the main detection rod, a first hand-held rod is arranged on the top of the first positioning column, a first conical column is arranged at the bottom end of the main detection rod, a second conical column is arranged at the bottom end transition of the first conical column, and a first bottom end positioning column is arranged at the end of the second conical column.

[0005] A first clamping plane is arranged on the outer wall of the first handle bar.

[0006] The first positioning column is provided with a first chamfer at an outer edge close to the main detection rod, and the outer edge of the first bottom positioning column is provided with a second chamfer.

[0007] A first backing groove is arranged between the second tapered column and the first bottom positioning column.

[0008] Also included is a conical surface grinding tool for grinding the sealing conical surface of the alcohol sprayer hole;

[0009] The conical surface grinding tool includes a main rod, a second positioning column is arranged on the top of the main rod, a second hand-held rod is arranged on the top of the second positioning column, a third conical column is arranged at the bottom end of the main rod, a second bottom positioning column is arranged at the bottom end of the third conical column, and arc grooves are evenly processed on the outer wall of the third conical column.

[0010] A second clamping plane is provided on the outer wall of the second handle bar;

[0011] A top threaded hole is processed at the top center of the second handle bar.

[0012] The second positioning column is provided with a third chamfer at an outer edge close to the main rod, and the outer edge of the second bottom positioning column is provided with a fourth chamfer.

[0013] The arc grooves are arranged along the generatrix direction of the third tapered column;

[0014] A second backing groove is provided between the third tapered column and the second bottom positioning column.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model discloses a method for detecting and repairing the sealing cone surface of the alcohol spray hole of the cylinder head. The detection tool is designed and manufactured based on the alcohol spray installed in the hole, and the grinding (repair) tool is designed and manufactured based on the alcohol spray hole. This tool can complete the detection and repair of similar sealing cone surfaces after processing, ensuring that the product meets the requirements of the drawings.

[0017] 2. The above-mentioned cone surface detection tool can be used to detect the sealing performance of the outer dimensions of the sealing cone surface of the alcohol sprayer hole.

[0018] 3. The first clamping plane mentioned above facilitates the use of tools to clamp the cone surface detection tooling.

[0019] 4. By adopting the above-mentioned conical surface grinding tooling, the sealing conical surface of the alcohol injector hole with defects can be ground until it passes the inspection, ensuring that the sealing conical surface of the alcohol injector hole of the cylinder head shipped as a finished product meets the requirements of the drawing.

[0020] 5. The top threaded hole is convenient for connecting the screw rod, thereby facilitating the subsequent rotation of the conical surface grinding tooling.

[0021] 6. The arc groove achieves a good grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 This is a processing diagram of the cylinder head alcohol injector hole to be tested in the utility model.

[0024] Figure 2 This is the front view of the cone surface detection tooling of the utility model.

[0025] Figure 3 It is the front view of the conical surface grinding tool of the utility model.

[0026] Figure 4 For the utility model Figure 3 Middle A view.

[0027] Figure 5 It is a partial view of the arc groove of the utility model.

[0028] In the figure: the first clamping plane 1, the first holding rod 2, the first positioning column 3, the first chamfer 4, the main detection rod 5, the first tapered column 6, the second tapered column 7, the first undercut 8, the first bottom positioning column 9, the second chamfer 10, the second clamping plane 11, the top threaded hole 12, the second holding rod 13, the second positioning column 14, the third chamfer 15, the main rod 16, the third tapered column 17, the arc groove 18, the second undercut 19, the second bottom positioning column 20, and the fourth chamfer 21. DETAILED DESCRIPTION

[0029] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0030] Embodiment 1:

[0031] See also Figure 2-5 A methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool, including a cone surface detection tool for detecting the alcohol injector hole sealing cone surface; the cone surface detection tool includes a main detection rod 5, the top of the main detection rod 5 is provided with a first positioning column 3, the top of the first positioning column 3 is provided with a first hand-held rod 2, the bottom end of the main detection rod 5 is provided with a first conical column 6, the bottom end of the first conical column 6 is transitionally provided with a second conical column 7, and the end of the second conical column 7 is provided with a first bottom end positioning column 9. By adopting the above-mentioned cone surface detection tool, it can be used to detect the sealing of the outer dimensions of the alcohol injector hole sealing cone surface. In the specific detection process, the second conical column 7 is matched with the alcohol injector hole sealing cone surface to determine whether it meets the sealing requirements; the first bottom end positioning column 9 is used to achieve positioning during the detection process.

[0032] Furthermore, a first clamping plane 1 is provided on the outer wall of the first handle bar 2. The first clamping plane 1 facilitates the use of tools to clamp the cone surface detection tooling.

[0033] Furthermore, the first positioning column 3 is provided with a first chamfer 4 at the outer edge close to the main detection rod 5, and the outer edge of the first bottom positioning column 9 is provided with a second chamfer 10. The first chamfer 4 and the second chamfer 10 facilitate the protection of the tooling.

[0034] Furthermore, a first undercut groove 8 is provided between the second tapered column 7 and the first bottom positioning column 9. The first undercut groove 8 facilitates the processing of the first bottom positioning column 9.

[0035] Embodiment 2:

[0036] It also includes a conical surface grinding tool for grinding the conical surface of the alcohol injector hole seal; the conical surface grinding tool includes a main rod 16, a second positioning column 14 is arranged on the top of the main rod 16, a second hand-held rod 13 is arranged on the top of the second positioning column 14, a third conical column 17 is arranged at the bottom of the main rod 16, a second bottom end positioning column 20 is arranged at the bottom of the third conical column 17, and an arc groove 18 is uniformly processed on the outer wall of the third conical column 17. By using the above-mentioned conical surface grinding tool, the conical surface of the alcohol injector hole seal with defects can be ground until it is qualified for inspection, ensuring that the cylinder head alcohol injector hole seal conical surface of the finished product shipped meets the requirements of the drawing.

[0037] Furthermore, a second clamping plane 11 is provided on the outer wall of the second handle bar 13 ; the second clamping plane 11 facilitates the use of tools to clamp the cone surface detection tooling.

[0038] Furthermore, a top threaded hole 12 is processed at the top center of the second handle bar 13. The top threaded hole 12 facilitates the connection of the screw rod, thereby facilitating the subsequent rotation of the conical surface grinding tool.

[0039] Furthermore, the outer edge of the second positioning column 14 near the main rod 16 is provided with a third chamfer 15, and the outer edge of the second bottom positioning column 20 is provided with a fourth chamfer 21. The third chamfer 15 and the fourth chamfer 21 facilitate the protection of the tooling.

[0040] Furthermore, the arc groove 18 is arranged along the generatrix direction of the third tapered column 17; the arc groove 18 has a good grinding effect.

[0041] Furthermore, a second undercut groove 19 is provided between the third tapered column 17 and the second bottom positioning column 20. The second undercut groove 19 facilitates the processing of the second bottom positioning column 20.

[0042] Embodiment 3:

[0043] The utility model solves the problem of detecting and grinding the sealing cone surface of the alcohol injector hole of a new type of methanol dual-fuel cylinder head. The sealing cone surface of the alcohol injector hole is detected by designing a special detection tool. The sealing cone surface of the alcohol injector hole with processing defects is ground by designing a special grinding tool until it passes the inspection, ensuring that the sealing cone surface of the alcohol injector hole of the cylinder head shipped as a finished product meets the requirements of the drawing.

[0044] Due to communication with the design party, it is impossible to obtain a finished alcohol sprayer. This type of methanol dual-fuel cylinder head is an experimental product, designed and processed for the first time, and there is no finished alcohol sprayer. The sealing cone surface detection problem needs to be solved by ourselves. The sealing cone surface angle of this type of methanol dual-fuel cylinder head is different from all models in production, and there is currently a lack of repair capabilities for defective sealing cone surfaces. Based on this, this embodiment provides a method for detecting the sealing cone surface of the alcohol spray hole of the methanol dual-fuel cylinder head and a method for detecting the sealing cone surface of the alcohol spray hole by a grinding tool, including the following steps:

[0045] Step 1: Extract the structural dimensions of the cone surface detection tooling and the cone surface grinding tooling:

[0046] See also Figure 1 According to the complete set of alcohol sprayer drawings, find the required dimensions for designing and manufacturing the alcohol sprayer hole sealing cone surface detection and grinding tooling from the drawings;

[0047] Step 2: Production of cone surface detection tooling:

[0048] According to the angle, size, positioning surface diameter and depth key dimensions of the alcohol spray hole sealing cone extracted in step 1, the corresponding cone surface detection tooling is processed and manufactured, and the positioning dimensions of the cone surface detection tooling are ensured to be consistent with the dimensions of the alcohol sprayer, and the cone surface of the second conical column 7 is consistent with the sealing cone surface of the alcohol sprayer;

[0049] Step 3, production of cone grinding tooling:

[0050] According to the cone surface size of the alcohol spray hole sealing extracted in step 1, a cone surface grinding tool is designed and manufactured, the second bottom end positioning column 20 is matched with the clearance of the alcohol spray hole size of 0.05-0.1mm, the cone surface of the third conical column 17 is consistent with the cone surface of the alcohol spray hole sealing, and a cross-shaped arc groove 18 is opened on the third conical column 17;

[0051] Step 4, inspection of the sealing cone surface of the alcohol sprayer hole:

[0052] Apply blue cyanide oil evenly on the 90° sealing cone surface of the second conical column 7 of the conical surface detection tooling, hold the conical surface detection tooling, and slowly insert it into the alcohol sprayer hole until the bottom. Note that the conical surface detection tooling can only move along the generatrix direction of the alcohol sprayer hole and cannot rotate around the generatrix. After contacting the bottom, carefully pull out the conical surface detection tooling and check the coloring of the alcohol sprayer hole. If there is a circle of continuous blue cyanide oil coloring on the sealing cone surface of the alcohol sprayer hole, it is considered qualified. If there is a breakpoint, it is considered unqualified.

[0053] Step 5, grinding of the sealing cone surface of the alcohol spray hole:

[0054] For the alcohol injector holes with coloring defects in step 4 or vibration marks on the sealing cone surface after processing, grinding and repair are required. Grinding is divided into coarse grinding and fine grinding, using coarse grinding sand and fine grinding sand respectively, coarse grinding first and then fine grinding;

[0055] During the specific grinding and repair process, apply grinding sand on the sealing cone surface of the third conical column 17 of the conical surface grinding tool, gently insert the tool into the alcohol spray hole until the bottom, install the rotary rod into the tail of the conical surface grinding tool, apply force downward, and continuously rotate the tool around the generatrix of the alcohol spray hole to grind the sealing cone surface. First use coarse grinding sand for rough processing, and then use fine grinding sand for fine processing until the coloring is qualified or the chattering marks are eliminated.

Claims

1. A methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool, characterized in that: It includes a cone surface detection tool for detecting the sealing cone surface of the alcohol sprayer hole; The conical surface detection tool comprises a main detection rod (5), a first positioning column (3) is arranged at the top of the main detection rod (5), a first hand-held rod (2) is arranged at the top of the first positioning column (3), a first conical column (6) is arranged at the bottom end of the main detection rod (5), a second conical column (7) is arranged at the bottom end of the first conical column (6), and a first bottom positioning column (9) is arranged at the end of the second conical column (7).

2. According to claim 1, a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool, characterized in that: A first clamping plane (1) is provided on the outer wall of the first handle bar (2).

3. According to claim 1, a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool is characterized in that: The first positioning column (3) is provided with a first chamfer (4) at an outer edge close to the main detection rod (5), and the outer edge of the first bottom positioning column (9) is provided with a second chamfer (10).

4. According to claim 1, a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool is characterized in that: A first backing groove (8) is provided between the second tapered column (7) and the first bottom positioning column (9).

5. According to claim 1, a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool, characterized in that: Also included is a conical surface grinding tool for grinding the sealing conical surface of the alcohol sprayer hole; The conical surface grinding tool comprises a main rod (16), a second positioning column (14) is arranged on the top of the main rod (16), a second hand-held rod (13) is arranged on the top of the second positioning column (14), a third conical column (17) is arranged at the bottom end of the main rod (16), a second bottom positioning column (20) is arranged at the bottom end of the third conical column (17), and an arc groove (18) is uniformly processed on the outer wall of the third conical column (17).

6. According to claim 5, a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool is characterized in that: A second clamping plane (11) is provided on the outer wall of the second handle bar (13); A top threaded hole (12) is machined at the center of the top of the second hand-held rod (13).

7. According to claim 6, a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool, characterized in that: The second positioning column (14) is provided with a third chamfer (15) at an outer edge close to the main rod (16), and the outer edge of the second bottom positioning column (20) is provided with a fourth chamfer (21).

8. According to claim 6, a methanol dual-fuel cylinder head alcohol injector hole sealing cone surface detection and grinding tool, characterized in that: The arc-shaped groove (18) is arranged along the generatrix direction of the third tapered column (17); A second backing groove (19) is provided between the third tapered column (17) and the second bottom positioning column (20).

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