Integrated double-side sliding machining process for automobile parts

Abstract

The invention relates to the technical field of automobile part machining, in particular to an automobile part integrated double-side sliding machining technology which comprises the following steps that S1, an automobile part is placed in a hot machining structure, heated to 920-940 DEG C at the heating rate of 50-80 DEG C / min, then cooled to 800-820 DEG C and subjected to heat preservation for 50-70 min, heated to 950-960 DEG C at the heating rate of 50-80 DEG C / min and subjected to heat preservation for 10-15 s; s2, the automobile part is transferred into a stamping structure to be stamped, the stamping structure is of a double-side-sliding die structure, a male die is pushed in a side-sliding mode to complete part supporting, then a female die is pushed in a side-sliding mode to conduct part female-male die covering forming, pressure maintaining is conducted on the automobile part after stamping is completed, the pressure maintaining pressure ranges from 18 MPa to 22 MPa, and the pressure maintaining time ranges from 40 s to 60 s; according to the method, welding is omitted, the technological process is reduced, the part quality precision is improved, the overall part strength is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, and in particular to an integrated double-side sliding processing technology for automobile parts. Background Art

[0002] Conventionally, the parts are designed into two parts (see the red line dividing diagram below), and then the two parts are connected together by welding. If there is a sealing requirement, sealant needs to be applied to the overlap of the parts.

[0003] However, the strength of the two parts connected by welding is lower than that of the one-piece parts, and the raw materials of the two parts need to be increased to meet the strength requirements. In addition, the parts are assembled by welding, and the welding thermal deformation and dimensional accuracy are worse than those of the one-piece parts.

[0004] Therefore, we propose an integrated double-side sliding processing technology for automotive parts to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an integrated double-side sliding processing technology for automobile parts to solve the technical problem in the prior art that "however, the two parts are connected by welding, and the strength is inferior to that of the one-piece molded parts, and the raw materials of the two parts need to be improved to increase the strength requirements, and the parts are assembled by welding, and the welding thermal deformation and dimensional accuracy are inferior to those of the one-piece parts."

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An integrated double-side sliding processing technology for automobile parts comprises the following steps:

[0008] S1: First, place the automobile parts inside the hot processing structure, heat them to 920-940°C at a heating rate of 50-80°C / min, then cool them to 800-820°C and keep them warm for 50-70min, and then heat them to 950-960°C at a heating rate of 50-80°C / min and keep them warm for 10-15s;

[0009] S2: Then the automobile parts are transferred to the inside of the stamping structure for stamping. The stamping structure adopts a double-side sliding die structure. The punch is first slid sideways to push the punch to complete the part support, and then the concave die is slid sideways to push the concave and convex die to form the part. After the stamping is completed, the automobile parts are held under pressure at a pressure of 18 to 22 MPa for a holding time of 40 to 60 seconds.

[0010] S3: Take out the auto parts using a robot and cool them naturally to 30-40°C at room temperature;

[0011] S4: After cooling, the automobile parts are placed in an electrolyte for electrochemical deburring and descaling. The electrochemical deburring and descaling time is 2 to 3 minutes, and the electrolyte temperature is 40 to 50° C.

[0012] S5: After the electrolysis is completed, the automobile parts are taken out and washed with pure water for 2 to 3 times, and then placed in a drying oven for drying to obtain high-strength automobile parts.

[0013] As a preferred technical solution of the present invention, the raw materials of the electrolyte in step S4 include, by weight: 60 to 80 parts of tall oil diethanolamide and 5 to 8 parts of sodium lauryl alcohol polyoxyethylene ether sulfate.

[0014] As a preferred technical solution of the present invention, in the step S1, a first heat insulation board is fixedly connected to the central lower part of the hot processing structure, a protective plate is fixedly connected to the upper end of the first heat insulation board, a first temperature detector is installed on the side end of the protective plate, and the first temperature detector is used to detect the internal temperature of the hot processing structure. The side end of the hot processing structure is connected to a stamping structure.

[0015] As a preferred technical solution of the present invention, in step S2, the stamping structure performs stamping processing of automobile parts.

[0016] As a preferred technical solution of the present invention, the hot processing structure in step S1 includes a gas guide connecting pipe, a gas guide branch pipe and a gas guide seat.

[0017] As a preferred technical solution of the present invention, the upper end of the gas guide seat is connected to a gas guide branch pipe, and the upper end of the gas guide branch pipe is connected to a gas guide connecting pipe.

[0018] As a preferred technical solution of the present invention, the raw materials of the electrolyte in step S4 further include, by weight: 20-25 parts of ketoconazole, 15-20 parts of aluminum phosphide, 3-5 parts of trisulfide-s-triazine trisodium salt, and 2-4 parts of benzoic acid.

[0019] As a preferred technical solution of the present invention, the raw materials of the electrolyte in step S4 further include, by weight: 2-4 parts of benzimidazole allyl sulfide, 2-5 parts of tartaric acid, 5-7 parts of lithium fluoride, and 200-300 parts of deionized water.

[0020] The present invention provides an integrated double-side sliding processing technology for automobile parts, which has the following beneficial effects:

[0021] 1. The automobile parts of the present invention are subjected to the process of hot processing - stamping forming - natural cooling, thereby increasing the strength of the overall parts.

[0022] 2. The present invention first places the automobile parts inside the hot processing structure, and through the process of heating-cooling-keeping-heating, the toughness of the automobile parts is improved and the plasticity of the parts for subsequent stamping is enhanced.

[0023] 3. The stamping structure of the present invention adopts a double-side sliding mold structure. The punch is first pushed sideways to complete the part support, and then the die is pushed sideways to perform part convex and concave mold overmolding. After the stamping is completed, the automobile parts are maintained under pressure. The holding pressure is 18 to 22 MPa and the holding time is 40 to 60 seconds, thereby improving the quality accuracy of the parts.

[0024] 4. In the present invention, the parts are designed and developed in an integrated state, welding is eliminated, the process flow is reduced, and the manufacturing cost is reduced.

[0025] 5. In the electrolyte of the present invention, tall oil diethanolamide combined with sodium lauryl polyoxyethylene ether sulfate as electrolyte raw materials can not only deburr and remove oxide scale for automobile parts, but also improve the rust resistance of automobile parts. Ketoconazole, aluminum phosphide, trisulfide-s-triazine trisodium salt, benzoic acid, benzimidazole allyl sulfide, tartaric acid, lithium fluoride and deionized water provide free electrons and ions for the electrolyte, which promotes the electrochemical reaction on the surface of automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a processing flow chart of the present invention. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0029] The following is attached to the instruction manual Figure 1 And embodiments describe the process principle of the present invention in detail:

[0030] Example 1

[0031] An integrated double-side sliding processing technology for automobile parts comprises the following steps:

[0032] S1: First, place the automobile parts inside the hot processing structure, heat them to 940℃ at a heating rate of 50℃ / min, then cool them to 820℃ and keep them warm for 50min, and then heat them to 950℃ at a heating rate of 52℃ / min and keep them warm for 10s;

[0033] S2: Then the automobile parts are transferred to the inside of the stamping structure for stamping. The stamping structure adopts a double-side sliding die structure. The punch is first slid sideways to complete the part support, and then the concave die is slid sideways to perform part concave and convex die overmolding. After the stamping is completed, the automobile parts are held under pressure at a pressure of 18 MPa for a holding time of 40 seconds.

[0034] S3: Take out the auto parts using a robot and cool them naturally to 30°C at room temperature;

[0035] S4: After cooling, the automobile parts are placed in the electrolyte for electrochemical deburring and descaling. The electrochemical deburring and descaling time is 2 minutes, and the electrolyte temperature is 40°C;

[0036] S5: After the electrolysis is completed, the automobile parts are taken out and washed with pure water 2 to 3 times, and then placed in a drying oven for drying to obtain high-strength automobile parts.

[0037] Among them, the raw materials of the electrolyte in step S4 include, by weight: 60 parts of tall oil diethanolamide, 5 parts of sodium lauryl polyoxyethylene ether sulfate, 25 parts of ketoconazole, 20 parts of aluminum phosphide, 5 parts of trisulfide s-triazine trisodium salt, 4 parts of benzoic acid, 4 parts of benzimidazole allyl sulfide, 5 parts of tartaric acid, 7 parts of lithium fluoride, and 300 parts of deionized water.

[0038] Among them, in the step S1, a first heat insulation plate is fixedly connected to the central lower part of the hot processing structure, a protective plate is fixedly connected to the upper end of the first heat insulation plate, a first temperature detector is installed on the side end of the protective plate, and the first temperature detector is used to detect the internal temperature of the hot processing structure. The side end of the hot processing structure is connected to a stamping structure.

[0039] Wherein, in step S2, the stamping structure performs stamping processing of automobile parts.

[0040] Wherein, the hot-processed structure in step S1 includes a gas guide connecting pipe, a gas guide branch pipe and a gas guide seat.

[0041] Wherein, the upper end of the air guide seat is connected with an air guide branch pipe, and the upper end of the air guide branch pipe is connected with an air guide connecting pipe.

[0042] Specifically, the hot processing structure, the protective plate, the first temperature detector, the first heat insulation plate, and the stamping structure are first combined and arranged; the protective plate, the first temperature detector, and the first heat insulation plate are fixed to block the inside and outside of the hot processing structure; at the same time, the first temperature detector is used to detect the temperature inside the hot processing structure; after the hot processing structure is processed, the parts can reach the stamping structure for stamping production.

[0043] Example 2

[0044] An integrated double-side sliding processing technology for automobile parts comprises the following steps:

[0045] S1: First, place the automobile parts inside the hot processing structure, heat to 920℃ at a heating rate of 57℃ / min, then cool to 800℃ and keep warm for 50min, then heat to 950℃ at a heating rate of 57℃ / min and keep warm for 15s;

[0046] S2: Then the automobile parts are transferred to the inside of the stamping structure for stamping. The stamping structure adopts a double-side sliding die structure. The punch is first slid sideways to push the punch to complete the part support, and then the concave die is slid sideways to push the concave and convex die to form the part. After the stamping is completed, the automobile parts are kept under pressure. The holding pressure is 20MPa and the holding time is 50s.

[0047] S3: The auto parts are taken out by a robot and naturally cooled to 30°C at room temperature;

[0048] S4: After cooling, the automobile parts are placed in the electrolyte for electrochemical deburring and descaling. The electrochemical deburring and descaling time is 3 minutes, and the electrolyte temperature is 50°C;

[0049] S5: After the electrolysis is completed, the auto parts are taken out and washed with pure water for 3 times, and then placed in a drying oven for drying to obtain high-strength auto parts.

[0050] Among them, the raw materials of the electrolyte in step S4 include, by weight: 60 parts of tall oil diethanolamide, 5 parts of sodium lauryl polyoxyethylene ether sulfate, 20 parts of ketoconazole, 15 parts of aluminum phosphide, 3 parts of trisulfide-s-triazine trisodium salt, 2 parts of benzoic acid, 2 parts of benzimidazole allyl sulfide, 5 parts of tartaric acid, 5 parts of lithium fluoride, and 200 parts of deionized water.

[0051] Among them, in the step S1, a first heat insulation plate is fixedly connected to the central lower part of the hot processing structure, a protective plate is fixedly connected to the upper end of the first heat insulation plate, a first temperature detector is installed on the side end of the protective plate, and the first temperature detector is used to detect the internal temperature of the hot processing structure. The side end of the hot processing structure is connected to a stamping structure.

[0052] Wherein, in step S2, the stamping structure performs stamping processing of automobile parts.

[0053] Wherein, the hot-processed structure in step S1 includes a gas guide connecting pipe, a gas guide branch pipe and a gas guide seat.

[0054] Wherein, the upper end of the air guide seat is connected with an air guide branch pipe, and the upper end of the air guide branch pipe is connected with an air guide connecting pipe.

[0055] Example 3

[0056] An integrated double-side sliding processing technology for automobile parts comprises the following steps:

[0057] S1: First, place the automobile parts inside the hot processing structure, heat them to 930℃ at a heating rate of 60℃ / min, then cool them to 800℃ and keep them warm for 50min, and then heat them to 950℃ at a heating rate of 50℃ / min and keep them warm for 10s;

[0058] S2: Then the automobile parts are transferred to the inside of the stamping structure for stamping. The stamping structure adopts a double-side sliding die structure. The punch is first slid sideways to complete the part support, and then the concave die is slid sideways to perform part concave and convex die overmolding. After the stamping is completed, the automobile parts are held under pressure at a pressure of 22 MPa for a holding time of 60 seconds.

[0059] S3: The auto parts are taken out by a robot and naturally cooled to 39°C at room temperature;

[0060] S4: After cooling, the automobile parts are placed in the electrolyte for electrochemical deburring and descaling. The electrochemical deburring and descaling time is 2.8 minutes, and the electrolyte temperature is 47.9°C;

[0061] S5: After the electrolysis is completed, the auto parts are taken out and washed with pure water for 3 times, and then placed in a drying oven for drying to obtain high-strength auto parts.

[0062] Among them, the raw materials of the electrolyte in step S4 include, by weight: 80 parts of tall oil diethanolamide, 5 parts of sodium lauryl polyoxyethylene ether sulfate, 24 parts of ketoconazole, 15.8 parts of aluminum phosphide, 3 parts of trisulfide-s-triazine trisodium salt, 2 parts of benzoic acid, 4 parts of benzimidazole allyl sulfide, 5 parts of tartaric acid, 7 parts of lithium fluoride, and 300 parts of deionized water.

[0063] Among them, in the step S1, a first heat insulation plate is fixedly connected to the central lower part of the hot processing structure, a protective plate is fixedly connected to the upper end of the first heat insulation plate, a first temperature detector is installed on the side end of the protective plate, and the first temperature detector is used to detect the internal temperature of the hot processing structure. The side end of the hot processing structure is connected to a stamping structure.

[0064] Wherein, in step S2, the stamping structure performs stamping processing of automobile parts.

[0065] Wherein, the hot-processed structure in step S1 includes a gas guide connecting pipe, a gas guide branch pipe and a gas guide seat.

[0066] Wherein, the upper end of the air guide seat is connected with an air guide branch pipe, and the upper end of the air guide branch pipe is connected with an air guide connecting pipe.

[0067] Example 4

[0068] An integrated double-side sliding processing technology for automobile parts comprises the following steps:

[0069] S1: First, place the automobile parts inside the hot processing structure, heat them to 940℃ at a heating rate of 78℃ / min, then cool them to 815℃ and keep them warm for 70min, and then heat them to 960℃ at a heating rate of 65℃ / min and keep them warm for 13s;

[0070] S2: Then the automobile parts are transferred to the inside of the stamping structure for stamping. The stamping structure adopts a double-side sliding die structure. The punch is first pushed sideways to complete the part support, and then the concave die is pushed sideways to perform part concave and convex die overmolding. After the stamping is completed, the automobile parts are held under pressure at a pressure of 21 MPa for a holding time of 48 seconds.

[0071] S3: The auto parts are taken out by a robot and naturally cooled to 38°C at room temperature;

[0072] S4: After cooling, the automobile parts are placed in the electrolyte for electrochemical deburring and descaling. The electrochemical deburring and descaling time is 3 minutes, and the electrolyte temperature is 50°C;

[0073] S5: After the electrolysis is completed, the automobile parts are taken out and washed twice with pure water, and then placed in a drying oven for drying to obtain high-strength automobile parts.

[0074] Among them, the raw materials of the electrolyte in step S4 include, by weight: 75 parts of tall oil diethanolamide, 6.8 parts of sodium lauryl polyoxyethylene ether sulfate, 23.4 parts of ketoconazole, 17 parts of aluminum phosphide, 3 parts of trisulfide-s-triazine trisodium salt, 3 parts of benzoic acid, 3 parts of benzimidazole allyl sulfide, 3 parts of tartaric acid, 3 parts of lithium fluoride, and 300 parts of deionized water.

[0075] Among them, in the step S1, a first heat insulation plate is fixedly connected to the central lower part of the hot processing structure, a protective plate is fixedly connected to the upper end of the first heat insulation plate, a first temperature detector is installed on the side end of the protective plate, and the first temperature detector is used to detect the internal temperature of the hot processing structure. The side end of the hot processing structure is connected to a stamping structure.

[0076] Wherein, in step S2, the stamping structure performs stamping processing on automobile parts.

[0077] Wherein, the hot-processed structure in step S1 includes a gas guide connecting pipe, a gas guide branch pipe and a gas guide seat.

[0078] Wherein, the upper end of the air guide seat is connected with an air guide branch pipe, and the upper end of the air guide branch pipe is connected with an air guide connecting pipe.

[0079] Example 5

[0080] An integrated double-side sliding processing technology for automobile parts comprises the following steps:

[0081] S1: First, place the automobile parts inside the hot processing structure, heat to 930℃ at a heating rate of 76℃ / min, then cool to 810℃ and keep warm for 58min, then heat to 955℃ at a heating rate of 59℃ / min and keep warm for 14.5s;

[0082] S2: Then the automobile parts are transferred to the inside of the stamping structure for stamping. The stamping structure adopts a double-side sliding die structure. The punch is first slid sideways to push the punch to complete the part support, and then the concave die is slid sideways to push the concave and convex die to form the part. After the stamping is completed, the automobile parts are kept under pressure. The holding pressure is 19 MPa and the holding time is 50 seconds.

[0083] S3: The auto parts are taken out by a robot and naturally cooled to 38°C at room temperature;

[0084] S4: After cooling, the automobile parts are placed in the electrolyte for electrochemical deburring and descaling. The electrochemical deburring and descaling time is 2 minutes, and the electrolyte temperature is 40°C;

[0085] S5: After the electrolysis is completed, the automobile parts are taken out and washed with pure water for 2 to 3 times, and then placed in a drying oven for drying to obtain high-strength automobile parts.

[0086] Among them, the raw materials of the electrolyte in step S4 include, by weight: 6 parts of tall oil diethanolamide, 5 parts of sodium lauryl polyoxyethylene ether sulfate, 20 parts of ketoconazole, 20 parts of aluminum phosphide, 3 parts of trisulfide-s-triazine trisodium salt, 2 parts of benzoic acid, 3 parts of benzimidazole allyl sulfide, 4 parts of tartaric acid, 6 parts of lithium fluoride, and 300 parts of deionized water.

[0087] Among them, in the step S1, a first heat insulation plate is fixedly connected to the central lower part of the hot processing structure, a protective plate is fixedly connected to the upper end of the first heat insulation plate, a first temperature detector is installed on the side end of the protective plate, and the first temperature detector is used to detect the internal temperature of the hot processing structure. The side end of the hot processing structure is connected to a stamping structure.

[0088] Wherein, in step S2, the stamping structure performs stamping processing on automobile parts.

[0089] Wherein, the hot-processed structure in step S1 includes a gas guide connecting pipe, a gas guide branch pipe and a gas guide seat.

[0090] Wherein, the upper end of the air guide seat is connected with an air guide branch pipe, and the upper end of the air guide branch pipe is connected with an air guide connecting pipe.

[0091] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An integrated double-side sliding processing technology for automobile parts, characterized in that: The following steps are involved: S1: First, place the automobile parts inside the hot processing structure, heat them to 920-940°C at a heating rate of 50-80°C / min, then cool them to 800-820°C and keep them warm for 50-70min, and then heat them to 950-960°C at a heating rate of 50-80°C / min and keep them warm for 10-15s; S2: Then the automobile parts are transferred to the inside of the stamping structure for stamping. The stamping structure adopts a double-side sliding die structure. The punch is first slid sideways to push the punch to complete the part support, and then the concave die is slid sideways to push the concave and convex die to form the part. After the stamping is completed, the automobile parts are held under pressure at a pressure of 18 to 22 MPa for a holding time of 40 to 60 seconds. S3: Take out the auto parts using a robot and cool them naturally to 30-40°C at room temperature; S4: After cooling, the automobile parts are placed in an electrolyte for electrochemical deburring and descaling. The electrochemical deburring and descaling time is 2 to 3 minutes, and the electrolyte temperature is 40 to 50° C. S5: After the electrolysis is completed, the automobile parts are taken out and washed with pure water for 2 to 3 times, and then placed in a drying oven for drying to obtain high-strength automobile parts.

2. The integrated double-side sliding processing technology for automobile parts according to claim 1 is characterized in that: The raw materials of the electrolyte in step S4 include, by weight: 60-80 parts of tall oil diethanolamide and 5-8 parts of sodium lauryl alcohol polyoxyethylene ether sulfate.

3. The integrated double-side sliding processing technology for automobile parts according to claim 1 is characterized in that: In step S1, a first heat insulation plate is fixedly connected to the central lower part of the hot working structure, a protective plate is fixedly connected to the upper end of the first heat insulation plate, a first temperature detector is installed on the side end of the protective plate, and the first temperature detector is used to detect the internal temperature of the hot working structure. The side end of the hot working structure is connected to a stamping structure.

4. The integrated double-side sliding processing technology for automobile parts according to claim 1 is characterized in that: In step S2, the stamping structure performs stamping processing on automobile parts.

5. The integrated double-side sliding processing technology for automobile parts according to claim 1 is characterized in that: The hot-processed structure in step S1 includes a gas guide connecting pipe, a gas guide branch pipe and a gas guide seat.

6. The integrated double-side sliding processing technology for automobile parts according to claim 5 is characterized in that: The upper end of the air guide seat is connected with an air guide branch pipe, and the upper end of the air guide branch pipe is connected with an air guide connecting pipe.

7. The integrated double-side sliding processing technology for automobile parts according to claim 1 is characterized in that: The raw materials of the electrolyte in step S4 further include, by weight: 20-25 parts of ketoconazole, 15-20 parts of aluminum phosphide, 3-5 parts of trisulfide-s-triazine trisodium salt, and 2-4 parts of benzoic acid.

8. The integrated double-side sliding processing technology for automobile parts according to claim 1 is characterized in that: The raw materials of the electrolyte in step S4 further include, by weight: 2-4 parts of benzimidazole allyl sulfide, 2-5 parts of tartaric acid, 5-7 parts of lithium fluoride, and 200-300 parts of deionized water.

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