CN109093329B - Processing technology of runner insert in water pump head - Google Patents
Processing technology of runner insert in water pump head Download PDFInfo
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- CN109093329B CN109093329B CN201810934080.6A CN201810934080A CN109093329B CN 109093329 B CN109093329 B CN 109093329B CN 201810934080 A CN201810934080 A CN 201810934080A CN 109093329 B CN109093329 B CN 109093329B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a processing technology of a runner insert in a pump head of a water pump, which comprises the insert, wherein the insert comprises a main body with a through hole and an annular piece, and the processing technology comprises the following steps: step 1, forming raw materials; processing a raw material to form a main body with a through hole; cutting the raw material pipe to form a ring piece, wherein the diameter D1 of the ring piece is larger than the diameter D2 of the through hole, and D1-D2 are not more than 10dmm and not more than 40 dmm; step 2, thermal expansion: the main body is fixed in a groove of a die, a heating device is arranged in the die, and the heating device heats the heating temperature of the main body to 250-350 ℃; step 3, assembling: the annular part extends into the through hole for fixation, and the bottom surfaces of the annular part and the through hole are jointed to form a common bottom surface; step 4, normal temperature recovery: the main body is placed at normal temperature to recover the deformation; step 5, welding: after the normal temperature is recovered, welding the joint of the main body and the annular piece; step 6, polishing: polishing the bottom surfaces of the main body and the annular piece; the invention has the characteristics of convenient processing, low cost, high structural strength, low noise of the water pump in use and the like.
Description
Technical Field
The invention relates to a processing technology, in particular to a processing technology of a runner insert in a pump head of a water pump.
Background
The water pump head is usually sleeved with the pump head through an insert to protect the water pump head from rusting, the insert comprises a main body, a through hole is formed in the main body, and an annular extending portion is arranged on the through hole. The existing processing mode is basically formed by stretching, the insert is made of stainless steel, after cutting is completed, the insert is punched, and then stretching is performed for two to three times to form the annular extending part. Meanwhile, after the insert is assembled on the pump head, due to the fact that gaps are not flat between the insert and the pump head, noise is high, and normal use is affected.
Disclosure of Invention
The invention mainly solves the technical problem of providing a processing technology of a runner insert in a pump head of a water pump.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a processing technology of runner inserts in water pump head, includes the inserts, and the inserts includes main part and loop forming element, is equipped with the through-hole in the main part, and wherein, processing technology is as follows:
step 3, assembling: the annular piece is extended into the through hole by a clamping tool to be fixed, and the bottom surface of the annular piece is attached to the bottom surface of the main body to form a common bottom surface;
step 4, normal temperature recovery: the main body is placed at normal temperature to recover the deformation;
step 5, welding: after the normal temperature is recovered, welding the joint of the main body and the annular piece;
step 6, polishing: and polishing the bottom surfaces of the main body and the annular piece.
The heat expansion process of the raw materials is adopted, so that the installation and processing of the insert are more convenient, the temperature of the whole body is reduced by the water in the water pump in the working process, the highest temperature of the water pump cannot reach 80 ℃, the heat expansion effect of the insert is very small and can be ignored, and the main body and the annular piece are not easy to fall off; by adopting the process arrangement, the main body is formed by directly cutting and punching a plate through a lathe, the working procedure is very simple, and the thickness and the hardness of the whole body are equal; and the annular part can be directly cut through the pipe with the corresponding size. Raw and other materials are prepared, the main body is subjected to hot processing, so that the through hole is enlarged, the annular piece and the main body are matched to realize fastening through the thermal expansion of the main body, and finally, the annular piece and the main body are molded through polishing. The process is very simple in processing, the bottom surface of the manufactured insert is smooth and flat, the noise of the water pump is greatly reduced in the using process, and the production cost is reduced. And the size of the through hole is smaller than that of the outer wall of the annular piece, so that hard connection is formed between the through hole and the annular piece, and the through hole and the annular piece are firmly clamped when the temperature is restored to normal temperature. Where dmm is a unit of decimeter, 1 decimeter =1/10000 meter =1/10 mm.
Wherein the temperature of the hot processing is 250-350 ℃.
By adopting the processing temperature, the raw material is thermally expanded, the through hole is expanded, at least 45dmm of the through hole is expanded in the temperature range, and at the moment, the annular piece can easily extend into the through hole, abut against the wall of the through hole, and can be cooled to be firmly fixed.
Wherein, be equipped with the recess of a plurality of and main part adaptation in the mould, be equipped with heating device in the mould, heating device heats holistic temperature to 270 ℃ -370 ℃.
Through the setting of mould, can process a plurality of main part simultaneously for processing is more convenient, considers the heat conduction loss between mould and the main part, promotes heating device's temperature, guarantees the normal processing temperature of main part, and the recess size here is slightly greater than the main part size.
Wherein the heating device is heated by resistance or electromagnetic heating or infrared heating.
By means of these several heating devices, the heating of the mould temperature is ensured.
Wherein D1-D2 is not less than 15dmm and not more than 30 dmm.
Furthermore, the cooperation between the two is more stable and convenient.
Wherein the height H1 of the ring is at least three times the height H2 of the through hole.
The height is limited, so that the insert sleeve is more stable on the water pump.
Wherein, the thickness of annular member and main part is 1 mm.
The thickness is limited, so that the overall strength is ensured.
The welding process also comprises welding, and after the normal temperature is recovered, the joint of the main body and the annular piece is welded.
Through the welding for main part and annular member are fixed more firmly, are difficult for taking place to drop more.
Wherein, the raw material of the insert is 304 stainless steel.
By adopting the arrangement of 304 stainless steel, the overall stability is improved, and the 304 stainless steel has low cost and is easy to process.
Drawings
FIG. 1 is a schematic view of the structure of an insert in embodiment 1 of the present invention;
FIG. 2 is a sectional view of an insert in embodiment 1 of the present invention;
FIG. 3 is a front view of the body of the insert separated from the ring-shaped member in embodiment 1 of the present invention;
FIG. 4 is a schematic view of a mold in example 1 of the present invention;
FIG. 5 is a process flow diagram of example 1 of the present invention.
Detailed Description
Example 1:
referring to fig. 1-5, a processing technology of an insert of a runner in a pump head of a water pump includes an insert 1, as shown in fig. 1, the insert 1 includes a main body 11 and a ring member 12, and the main body 11 is provided with a through hole 111. The specific processing technology is as follows:
Step 3, assembling: the annular piece 12 is inserted into the through hole 111 through a clamping tool and fixed, and the bottom surface of the annular piece is attached to the bottom surface of the main body to form a common bottom surface;
step 4, normal temperature recovery: cooling at normal temperature to restore the deformation of the main body 11; at this time, since the ring member 12 itself is larger than the size of the through hole 111, the restored body 11 tightly fixes the ring member 12.
Step 5, welding: the joint of the main body 11 and the ring-shaped member 12 is welded, and the joint strength between the main body and the ring-shaped member can be mainly enhanced by spot welding or other welding methods, wherein the specific welding position is located on the top surface of the main body.
Step 6, polishing: the bottom surfaces of the main body 11 and the ring-shaped member 12 are polished, and the polishing is performed through a polishing machine, so that the bottom surfaces are smooth and flat.
Further, 15 dmm.ltoreq.D 1-D2.ltoreq.30 dmm, the most preferred dimension being 25dmm, the height H1 of the ring member 12 being at least three times the height H2 of the through hole 111 and the thickness of the ring member 12 and the body 11 being 1mm, where dmm is in units of decimeter, 1 decimeter =1/10000 m =1/10 mm.
The heat expansion process of the raw materials is adopted, so that the installation and processing of the insert 1 are more convenient, the temperature of the whole body is reduced by the water in the water pump in the working process, the highest temperature of the water pump is less than 80 ℃, the heat expansion effect of the insert 1 is very small and can be ignored, and the main body 11 and the annular piece 12 are not easy to fall off; by adopting the process arrangement, the main body 11 is formed by directly cutting and punching a plate through a lathe, the working procedure is very simple, and the thickness and the hardness of the whole body are equal; the ring-shaped part 12 can be directly cut by a pipe with a corresponding size. After the raw material is prepared, the main body 11 is subjected to hot working, so that the through hole 111 is enlarged, the through hole 111 is expanded by at least 45dmm, at the moment, the ring-shaped member 12 can easily extend into the through hole 111 and is abutted against the wall of the through hole 111, when the ring-shaped member is cooled to room temperature, the through hole 111 tightly clamps the ring-shaped member 12 to realize fastening, and finally, the ring-shaped member is formed by grinding. The process is very simple to process, the bottom surface of the manufactured insert 1 is smooth and flat, the noise of the water pump is greatly reduced in the using process, and the production cost is reduced. And the size of the through hole 111 is smaller than that of the outer wall of the annular piece 12, so that the two are in hard connection, and when the temperature is recovered to normal temperature, the two are firmly clamped.
Claims (5)
1. The utility model provides a processing technology of runner inserts in water pump head, includes the inserts, and the inserts includes main part and loop forming element, is equipped with through-hole, its characterized in that in the main part: the processing technology is as follows:
step 1, forming raw materials; cutting and punching raw materials to form an insert main body with a through hole; cutting the raw material pipe to form a ring-shaped piece, wherein the diameter D1 of the ring-shaped piece is larger than the diameter D2 of the through hole, and D1-D2 are more than or equal to 10dmm and less than or equal to 40 dmm;
step 2, thermal expansion: fixing the main body on a mold, wherein a plurality of grooves matched with the main body are arranged in the mold, a heating device is arranged in the mold, the heating device heats the whole temperature to 270-370 ℃, and the heating temperature of the main body is heated to 250-350 ℃ so as to enlarge the through holes;
step 3, assembling: the annular piece is extended into the through hole by a clamping tool to be fixed, and the bottom surface of the annular piece is attached to the bottom surface of the main body to form a common bottom surface;
step 4, normal temperature recovery: the main body is placed at normal temperature to recover the deformation;
step 5, welding: after the normal temperature is recovered, welding the joint of the main body and the annular piece;
step 6, polishing: and polishing the bottom surfaces of the main body and the annular piece.
2. The processing technology of the runner insert in the pump head of the water pump as claimed in claim 1, wherein: the heating means is heated by electrical resistance or electromagnetic heating or infrared heating.
3. The processing technology of the runner insert in the pump head of the water pump as claimed in claim 1, wherein: D1-D2 is not less than 15dmm and not more than 30 dmm.
4. The processing technology of the runner insert in the pump head of the water pump as claimed in claim 1, wherein: the height H1 of the ring is at least three times the height H2 of the through hole.
5. The processing technology of the runner insert in the pump head of the water pump as claimed in claim 1, wherein: the raw material of the insert is 304 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934080.6A CN109093329B (en) | 2018-08-16 | 2018-08-16 | Processing technology of runner insert in water pump head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934080.6A CN109093329B (en) | 2018-08-16 | 2018-08-16 | Processing technology of runner insert in water pump head |
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| CN109093329A CN109093329A (en) | 2018-12-28 |
| CN109093329B true CN109093329B (en) | 2020-10-23 |
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| CN112692523A (en) * | 2020-12-24 | 2021-04-23 | 浙江尚美包装有限公司 | Machining process for inner insert of pump head |
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| CN106640909A (en) * | 2016-12-26 | 2017-05-10 | 重庆协成五金制造有限公司 | Nut plate mounting device and punching process |
| CN107263036A (en) * | 2017-07-19 | 2017-10-20 | 吴江市双精轴承有限公司 | A kind of processing method of locating snap ring |
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2018
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Patent Citations (9)
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|---|---|---|---|---|
| CN102172820A (en) * | 2011-03-16 | 2011-09-07 | 上海宏旭模具工业有限公司 | Integral forming method for nut board |
| CN102225507A (en) * | 2011-06-02 | 2011-10-26 | 桂林航天电子有限公司 | Sealing ring pedestal group for electromagnetic relay and manufacturing method |
| CN103862223A (en) * | 2012-12-11 | 2014-06-18 | 中国核动力研究设计院 | Cold mounting process for pressurized water reactor nuclear power plant voltage stabilizer penetration pieces |
| CN104019026A (en) * | 2014-06-12 | 2014-09-03 | 三一汽车制造有限公司 | Concrete pump, abrasion-resistant plate thereof, and manufacturing method of abrasion-resistant plate of concrete pump |
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| CN109093329A (en) | 2018-12-28 |
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