A cylinder head washing machine waterway cleaning verification device and a method of using the same

Abstract

A cylinder head cleaning machine water channel cleaning verification device and its usage method belong to the field of engine production inspection technology. It includes three identical water channel adjustment fixtures: a deep water channel adjustment fixture, a middle water channel adjustment fixture, and a shallow water channel adjustment fixture, all horizontally eccentrically cut from a complete cylinder head. Each fixture includes an upper and lower half connected by bolts; the height of the upper half of the deep, middle, and shallow water channel adjustment fixtures increases sequentially. The method is as follows: prepare the fixtures; place aluminum shavings into the fixtures, simultaneously inject cleaning fluid, and clean for equal duration using the same cleaning nozzles; statistically analyze the residual aluminum shavings in the fixtures to determine their cleaning capacity; then repeat the above steps after changing a variable. This invention simulates the cleaning process in a specific cleaning environment, identifies deficiencies in the cylinder head water jacket cleaning by the cleaning machine, allows for subsequent improvements, has low manufacturing cost, strong adaptability, and can effectively verify the cleaning quality of the cleaning machine.

Description

Technical Field

[0001] This invention relates to a cylinder head cleaning machine water channel cleaning verification device and its usage method, belonging to the field of engine production inspection technology. Background Technology

[0002] During the machining process of the engine cylinder head, aluminum shavings may enter the cylinder head water jacket, causing blockage of the engine water jacket circulation, which in turn affects the engine's heat dissipation effect and leads to the potential quality hazard of high engine water temperature.

[0003] Existing cleaning machines incorporate water jacket cleaning, but the cylinder head water jacket is an internal circulation system that is not visible to the naked eye. This makes it impossible to determine the cleaning quality after the cylinder head is cleaned. Summary of the Invention

[0004] To address the problems existing in the background art, the present invention provides a cylinder head cleaning machine waterway cleaning verification device and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cylinder head cleaning machine water channel cleaning verification device, comprising a water channel deep layer adjustment fixture, a water channel middle layer adjustment fixture, and a water channel shallow layer adjustment fixture, all of which have the same structure and are all formed by horizontally eccentrically cutting a complete cylinder head.

[0006] The waterway depth adjustment fixture includes an upper part and a lower part of the waterway depth adjustment fixture connected by bolts.

[0007] The waterway mid-layer adjustment fixture includes an upper half and a lower half of the waterway mid-layer adjustment fixture connected by bolts.

[0008] The shallow channel adjustment fixture includes an upper part and a lower part of the shallow channel adjustment fixture connected by bolts.

[0009] The height of the upper half of the deep channel adjustment fixture, the upper half of the middle channel adjustment fixture, and the upper half of the shallow channel adjustment fixture increase sequentially.

[0010] A method of using a cylinder head cleaning machine waterway cleaning verification device according to the present invention includes the following steps:

[0011] S1: Prepare deep channel adjustment fixtures, mid-channel adjustment fixtures, and shallow channel adjustment fixtures respectively;

[0012] S2: Place aluminum chips of the same shape, quantity, and viscosity into the deep water channel adjustment fixture, the middle water channel adjustment fixture, and the shallow water channel adjustment fixture. At the same time, inject the same type of cleaning fluid of the same concentration into each fixture and clean for the same duration using cleaning nozzles of the same diameter and angle.

[0013] S3: Analyze the aluminum shavings residue in the deep waterway adjustment tool, the middle waterway adjustment tool, and the shallow waterway adjustment tool in sequence to determine the cleaning capacity of each tool.

[0014] S4: Change the shape of aluminum chips, the quantity of aluminum chips, the viscosity of aluminum chips, the concentration of cleaning solution, the type of cleaning solution, the diameter of the cleaning nozzle, the angle of the cleaning nozzle, and the cleaning time in sequence. Repeat S2-S3 after each change.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention uses wire cutting to dissect the original cylinder head water jacket, clearly revealing its internal structure. Aluminum shavings are placed inside the water jacket, and the dissected cylinder head is then assembled with bolts and placed in a cleaning machine for cleaning. The cleaning process is simulated in a specific cleaning environment. After cleaning, the machine is opened again to clearly observe the cleaning effect of the cylinder head water jacket. Tooling is used to inspect the cleaning tank's coverage of the deep, middle, and shallow water channels. The cleaning machine's process is used to judge the cleaning effect on the cylinder head. Repeated test data is extracted, and the cleaning tank's conditions are adjusted to achieve optimal cleaning results, identify shortcomings in the cleaning machine's ability to clean the cylinder head water jacket, and make subsequent improvements. Simultaneously, it can promptly detect abnormalities in the cleaning machine's water jacket cleaning process (such as clogged or damaged cleaning nozzles). It has low manufacturing costs, strong adaptability, and can effectively verify the cleaning quality of the cleaning machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the deep waterway adjustment fixture, the middle waterway adjustment fixture, and the shallow waterway adjustment fixture of the present invention.

[0018] Figure 2 yes Figure 1 The main view. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] A cylinder head cleaning machine waterway cleaning verification device includes a waterway deep layer adjustment fixture, a waterway middle layer adjustment fixture, and a waterway shallow layer adjustment fixture, all of which have the same structure and are all horizontally eccentrically cut from a complete cylinder head.

[0021] The waterway depth adjustment fixture includes an upper half 1 and a lower half 6 of the waterway depth adjustment fixture connected by bolts.

[0022] The waterway mid-layer adjustment fixture includes an upper half 2 and a lower half 5 of the waterway mid-layer adjustment fixture connected by bolts.

[0023] The shallow channel adjustment fixture includes an upper half 3 and a lower half 4 connected by bolts.

[0024] The tooling has an openable structure consisting of an upper part and a lower part, which facilitates direct observation and analysis of the deep internal structure of the cylinder head water channel. This provides a practical basis for adjusting the nozzle orientation of the cleaning tank and the spray pressure of the cleaning fluid when the cleaning machine is cleaning the cylinder head.

[0025] The heights of the upper half 1 of the deep water channel adjustment fixture, the upper half 2 of the middle water channel adjustment fixture, and the upper half 3 of the shallow water channel adjustment fixture increase sequentially, meaning that the position of the cylinder head horizontal cutting line decreases sequentially.

[0026] A method of using a cylinder head cleaning machine waterway cleaning verification device according to the present invention includes the following steps:

[0027] S1: Prepare deep channel adjustment fixtures, mid-channel adjustment fixtures, and shallow channel adjustment fixtures respectively;

[0028] S101: Place the cast cylinder head with the large opening facing up and the small opening facing down;

[0029] S102: Determine the center position of the cylinder head;

[0030] S103: Cut the cylinder head horizontally and eccentrically downward along the center position of the cylinder head to obtain the upper half 1 of the water channel deep adjustment fixture and the lower half 6 of the water channel deep adjustment fixture.

[0031] S104: The deep channel adjustment fixture is installed and fixed by means of bolts passing through the lower half 6 of the deep channel adjustment fixture and fastening them into the threaded holes of the upper half 1 of the deep channel adjustment fixture.

[0032] The manufacturing methods for the intermediate and shallow waterway adjustment fixtures are the same as those for the deep waterway adjustment fixtures, so they will not be described again. The difference is that the cutting line of the intermediate waterway adjustment fixture is located below the cutting line of the deep waterway adjustment fixture, and the cutting line of the shallow waterway adjustment fixture is located below the cutting line of the intermediate waterway adjustment fixture.

[0033] S2: Place aluminum chips of the same shape, quantity, and viscosity into the deep water channel adjustment fixture, the middle water channel adjustment fixture, and the shallow water channel adjustment fixture. At the same time, inject the same type of cleaning fluid of the same concentration into each fixture and clean for the same duration using cleaning nozzles of the same diameter and angle.

[0034] S3: Analyze the aluminum shavings residue in the deep waterway adjustment tool, the middle waterway adjustment tool, and the shallow waterway adjustment tool in sequence to determine the cleaning capacity of each tool.

[0035] S4: Change the shape of aluminum chips, the quantity of aluminum chips, the viscosity of aluminum chips, the concentration of cleaning solution, the type of cleaning solution, the diameter of the cleaning nozzle, the angle of the cleaning nozzle, and the cleaning time in sequence. Repeat S2-S3 after each change.

[0036] Specifically:

[0037] S5: Keep the cleaning solution type unchanged, change the concentration of the cleaning solution, and keep the other conditions of S2 unchanged, repeat S2-S3;

[0038] S6: Repeat S5 at least once, that is: test at least three concentrations of cleaning solution, for example: 3% A, 4% A and 5% A;

[0039] S7: Change the type of cleaning fluid, and keep the other conditions in S2 unchanged, and repeat S2-S6;

[0040] S8: Repeat S7 at least once, that is: test at least three types of cleaning solutions;

[0041] S9: Keep the shape and viscosity of the aluminum chips unchanged, change the amount of aluminum chips, and keep the other conditions of S2 unchanged, repeat S2-S8;

[0042] S10: Repeat S9 at least once, that is: test at least three quantities of aluminum shavings;

[0043] S11: Keep the shape and quantity of aluminum chips unchanged, change the viscosity of aluminum chips, and keep the other conditions of S2 unchanged, repeat S2-S10.

[0044] S12: Repeat S11 at least once, that is: test aluminum chips of at least three different viscosities;

[0045] S13: Change the aluminum shavings to different forms, and keep the other conditions of S2 unchanged, and repeat S2-S12.

[0046] S14: Repeat S13 at least once, that is: test at least three forms of aluminum shavings, such as: shredded aluminum shavings, filamentous aluminum shavings and rolled aluminum shavings;

[0047] S15: Keep the diameter of the cleaning nozzle and the cleaning time constant, change the angle of the cleaning nozzle, and keep the other conditions of S2 constant, repeat S2-S14.

[0048] S16: Repeat S15 at least once, that is: test cleaning nozzles at least three angles.

[0049] S17: Keep the diameter and angle of the cleaning nozzle unchanged, change the cleaning time, and keep the other conditions of S2 unchanged, repeat S2-S16.

[0050] S18: Repeat S17 at least once, that is: test at least three cleaning durations;

[0051] S19: Replace with cleaning nozzles of different diameters, and keep the other conditions of S2 unchanged, and repeat S2-S18;

[0052] S20: Repeat S19 at least once, that is: test at least three types of direct-descent cleaning nozzles, such as φ0.8, φ0.9 and φ1.0.

[0053] This invention makes the presence of aluminum shavings in the water channels of cylinder head products visible to the naked eye, quantifies the cleanliness of the water channels, and provides clear comparative verification of the various process schemes in the cylinder head casting, machining, and high-pressure cleaning stages. This improves the cleanliness quality assurance and control level of the cylinder head—a core component of the powertrain. It also allows for identification of the shape of aluminum shavings remaining in the water jacket holes, aiding in subsequent adjustments to the cutting tools for chip breaking.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cylinder head cleaning machine waterway cleaning verification device, characterized in that: These include deep water channel adjustment fixtures, middle water channel adjustment fixtures, and shallow water channel adjustment fixtures, all of which are structurally identical and are formed by horizontally and eccentrically cutting a complete cylinder head. The waterway deep adjustment fixture includes an upper half (1) and a lower half (6) of the waterway deep adjustment fixture connected by bolts. The waterway mid-layer adjustment fixture includes an upper half (2) and a lower half (5) of the waterway mid-layer adjustment fixture connected by bolts. The waterway shallow adjustment fixture includes an upper half (3) and a lower half (4) of the waterway shallow adjustment fixture connected by bolts. The height of the upper half (1) of the deep waterway adjustment fixture, the height of the upper half (2) of the middle waterway adjustment fixture, and the height of the upper half (3) of the shallow waterway adjustment fixture increase sequentially.

2. A method of using the cylinder head cleaning machine waterway cleaning verification device according to claim 1, characterized in that: The method includes the following steps: S1: Prepare deep channel adjustment fixtures, mid-channel adjustment fixtures, and shallow channel adjustment fixtures respectively; S2: Place aluminum chips of the same shape, quantity, and viscosity into the deep water channel adjustment fixture, the middle water channel adjustment fixture, and the shallow water channel adjustment fixture. At the same time, inject the same type of cleaning fluid of the same concentration into each fixture and clean for the same duration using cleaning nozzles of the same diameter and angle. S3: Analyze the aluminum shavings residue in the deep waterway adjustment tool, the middle waterway adjustment tool, and the shallow waterway adjustment tool in sequence to determine the cleaning capacity of each tool. S4: After successively changing the shape of aluminum chips, the quantity of aluminum chips, the viscosity of aluminum chips, the concentration of cleaning solution, the type of cleaning solution, the diameter of cleaning nozzle, the angle of cleaning nozzle, and the cleaning time, repeat S2-S3.

3. The method of using the cylinder head cleaning machine waterway cleaning verification device according to claim 2, characterized in that: S1 includes the following steps: S101: Place the cast cylinder head with the large opening facing up and the small opening facing down; S102: Determine the center position of the cylinder head; S103: Cut the cylinder head horizontally downwards and eccentrically along the center position of the cylinder head to obtain the upper half (1) of the water channel deep adjustment fixture and the lower half (6) of the water channel deep adjustment fixture. S104: The deep waterway adjustment fixture is installed and fixed by means of bolts passing through the lower half (6) of the deep waterway adjustment fixture and fastening them into the threaded holes of the upper half (1) of the deep waterway adjustment fixture.

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