CN109093329A - A kind of processing technology of Water pump head inner flow passage inserts - Google Patents
A kind of processing technology of Water pump head inner flow passage inserts Download PDFInfo
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- CN109093329A CN109093329A CN201810934080.6A CN201810934080A CN109093329A CN 109093329 A CN109093329 A CN 109093329A CN 201810934080 A CN201810934080 A CN 201810934080A CN 109093329 A CN109093329 A CN 109093329A
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- annular element
- main body
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- hole
- processing technology
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of processing technology of Water pump head inner flow passage inserts, including inserts, inserts includes main body and annular element, and main body is equipped with through-hole, and processing technology is as follows: step 1, raw material molding；Raw material are cut, are stamped and formed out the insert bodies with through-hole；Raw material tubing carries out cutting and forms annular element, and the diameter D1 of annular element is greater than diameter D2,10dmm≤D1-D2≤40dmm of through-hole；Step 2, heat expansion or shrinkage: carrying out hot-working for main body, so that through-hole becomes larger or annular element is carried out shrinkage, its entirety is made to become smaller；Step 3, assembly: main body is fixed on mold, is stretched in through-hole annular element by clamping device and is fixed；Step 4, room temperature restore: being placed under normal temperature state, so that main body or annular element restore deformation；Step 5, polishing: the bottom surface of main body and annular element is polished；The present invention have the characteristics that easy to process, at low cost, structural strength is high, use when pump noise it is low.
Description
Technical field
The present invention relates to a kind of processing technology, the processing technology of specifically a kind of Water pump head inner flow passage inserts.
Background technique
It is usually set on pump head by inserts in Water pump head, protection Water pump head prevents it from getting rusty, and inserts includes master
Body, main body are equipped with through-hole, and through-hole is equipped with annular extension.And existing processing method is formed essentially by stretching, due to
The material of inserts itself is stainless steel, after the completion of cutting, is punched out on inserts, is then formed by two to stretching three times
Annular extension, but such processing technology is there are a disadvantage, is exactly after stretching, the edge of through-hole can become very hard, but
It is that main body integrally becomes very soft, causes whole hardness to become uneven, so that main body can be tilted towards through-hole, lead to surface not
It is smooth.After inserts is assembled on pump head simultaneously, since out-of-flatness has gap between inserts and pump head, it is very big to will lead to noise, shadow
Ring normal use.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of processing technologys of Water pump head inner flow passage inserts.
The present invention, which solves technical solution used by its technical problem, is: a kind of processing of Water pump head inner flow passage inserts
Technique, including inserts, inserts include main body and annular element, and main body is equipped with through-hole, wherein processing technology is as follows:
Step 1, raw material molding；Raw material are cut, are stamped and formed out the insert bodies with through-hole；Raw material tubing is cut
It cuts to form annular element, the diameter D1 of annular element is greater than diameter D2,10dmm≤D1-D2≤40dmm of through-hole；
Step 2, heat expansion or shrinkage: carrying out hot-working for main body, so that through-hole becomes larger or annular element is carried out shrinkage, makes its entirety
Become smaller；
Step 3, assembly: main body is fixed on mold, is stretched in through-hole annular element by clamping device and is fixed；
Step 4, room temperature restore: being placed under normal temperature state, so that main body or annular element restore deformation；
Step 5, polishing: the bottom surface of main body and annular element is polished.
Using the technique of expanding with heat and contract with cold of raw material, so that inserts installation processing is more convenient, since water pump is in the course of work
In, internal water reduces whole temperature, and maximum temperature is not achieved 80 DEG C, and the effect very little of the heat expansion of inserts at this time
Very little also can be neglected, and fall off so that main body is not likely to produce with annular element；It is arranged using such technique, the molding of main body, is led to
A plate is crossed, is directly cut by lathe, punching is formed, process very simple, and its whole thickness and hardness are
It is equal；And annular element, directly carrying out cutting by the tubing of correspondingly-sized can be realized.Raw material are ready, by main body into
Row hot-working makes its entirety become smaller so that through-hole becomes larger or annular element is carried out shrinkage, passes through main body heat expansion or type ring shaped matter cold
Annular element and main body cooperation are realized fastening, formed finally by polishing by contracting.This technique processes very simple, and makes
Inserts bottom surface it is smooth, noise substantially reduces water pump in use, and production cost reduce.And the size of through-hole is small
In the size of annular element outer wall, so that forming Hard link between the two, when being restored to room temperature, the two is firmly mutually blocked.Dmm is herein
The unit of decimillimeter, 1 decimillimeter=1/10000 meter=1/10 millimeter.
Wherein, hot worked temperature is 250 DEG C -350 DEG C.
Using such processing temperature, so that raw material heat expansion, through-hole expansion, under this temperature range, through-hole is expanded at least
45dmm offsets at this point, annular element can easily stretch in through-hole very much with through-hole wall, with its cooling, can securely fix.
Wherein, it is equipped with the groove of several and body adaptor in mold, is equipped with heating device in mold, heating device will be whole
The temperature of body is heated to 270 DEG C -370 DEG C.
It, can be with several main bodys of simultaneous processing, so that processing is more convenient, it is contemplated that mold and master by the setting of mold
Heat conduction losses between body promote the temperature of heating device, guarantee the normal processing temperature of main body, and groove size is omited herein
Greater than size of main body.
Wherein, heating device passes through resistance or electromagnetic heating or infrared heating.
By these types of heating device, so that mold temperature heating is guaranteed.
Wherein, the temperature of shrinkage is -200 DEG C -- 50 DEG C.
The restriction of the temperature of shrinkage exists in this temperature, the size reduction of annular element outer wall at least 50dmm, therefore when assembly
For convenience, assembly is completed to be placed at room temperature, slowly heats up, fastening can be realized.
Wherein, pass through liquid nitrogen cooling.
It can guarantee the stability of shrinkage by liquid nitrogen, the sealed chamber of liquid nitrogen can be specifically housed herein by one.
Wherein, 15dmm≤D1-D2≤30dmm.
Further, so that cooperating between the two more stable, conveniently.
Wherein, the height H1 of annular element is at least three times of the height H2 of through-hole.
The restriction of height so that inserts be set in it is more stable on water pump.
Wherein, annular element and main body with a thickness of 1mm.
The restriction of thickness, so that whole intensity is guaranteed.
It wherein, further include that welding welds the junction of main body and annular element after room temperature restores.
It is more not susceptible to fall off so that main body and annular element fixation are stronger by welding.
Wherein, the raw material of inserts are 304 stainless steels.
Using the setting of 304 stainless steels, whole stability is improved, and 304 stainless steels are at low cost, easy processing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inserts in the embodiment of the present invention 1；
Fig. 2 is the cross-sectional view of inserts in the embodiment of the present invention 1；
Fig. 3 is the main view that the main body of inserts is separated with annular element in the embodiment of the present invention 1；
Fig. 4 is the schematic diagram of mold in the embodiment of the present invention 1；
Fig. 5 is 1 process flow chart of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of inserts in the embodiment of the present invention 2；
Fig. 7 is the cross-sectional view of inserts in the embodiment of the present invention 2；
Fig. 8 is the main view that the main body of inserts is separated with annular element in the embodiment of the present invention 2；
Fig. 9 is the schematic diagram of mold in the embodiment of the present invention 2；
Figure 10 is 2 process flow chart of the embodiment of the present invention.
Specific embodiment
Embodiment 1:
Referring to shown in attached drawing 1-5, a kind of processing technology of Water pump head inner flow passage inserts, including inserts 1, inserts 1 as shown in Figure 1
Including main body 11 and annular element 12, main body 11 is equipped with through-hole 111.Its specific processing technology is as follows:
Step 1, raw material molding；Raw material are cut, are stamped and formed out 1 main body 11 of inserts with through-hole 111；Raw material tubing
It carries out cutting and forms annular element 12, the diameter D1 of annular element 12 is greater than diameter D2,10dmm≤D1-D2≤40dmm of through-hole 111；
Raw material are specially 304 stainless steels herein.
Step 2, heat expansion: main body 11 is subjected to hot-working, main body 11 is placed in the groove 21 of mold 2, while by mould
Tool 2 is heated by heating device, and whole temperature is heated to 270 DEG C -370 DEG C by heating device, so that 11 temperature of main body
Reach 250 DEG C -350 DEG C, so that through-hole 111 becomes larger, heating device passes through resistance or electromagnetic heating or infrared heating, mould herein
Equipped with the groove 21 that several are adapted to main body 11 in tool 2.
Step 3, assembly: annular element 12 is stretched in through-hole 111 by clamping device and is fixed, the bottom surface of the two fits into
Bottom surface altogether；
Step 4, room temperature restore: being placed under normal temperature state and cool down, so that main body 11 restores deformation；At this time due to annular element 12
Body is greater than the size of through-hole 111, and the main body 11 after recovery is tightly fixed by annular element 12.
Step 5, welding: main body 11 and the junction of annular element 12 are welded, herein can by spot welding or its
His welding manner, the main bonding strength reinforced between the two, specific welding position is located at body top face.
Step 6, polishing: main body 11 and the bottom surface of annular element 12 are polished, and are polished herein especially by polishing machine
It polishes, so that bottom surface is smooth.
Further, 15dmm≤D1-D2≤30dmm, optimal size are 25dmm, and the height H1 of annular element 12 is at least logical
The three times and annular element 12 of the height H2 in hole 111 are with main body 11 with a thickness of 1mm, and dmm is the unit of decimillimeter, 1 decimillimeter=1/ herein
Ten thousand metres=1/10 millimeter.
Using the heat expansion technique of raw material, so that the installation processing of inserts 1 is more convenient, during the work time due to water pump,
Internal water reduces whole temperature, and maximum temperature is not achieved 80 DEG C, and the effect very little of the heat expansion of inserts 1 at this time is very
It is small, it also can be neglected, fall off so that main body 11 is not likely to produce with annular element 12；Using such technique be arranged, main body 11 at
Type is directly cut by a plate by lathe, and punching is formed, process very simple, and its whole thickness and hardness
It is equal；And annular element 12, directly carrying out cutting by the tubing of correspondingly-sized can be realized.Raw material are ready, will
Main body 11 carries out hot-working, so that through-hole 111 becomes larger, through-hole 111 expands at least 45dmm herein, at this point, annular element 12 is very easily
It can stretch in through-hole 111, offset with 111 wall of through-hole, when its cooling is reduced to room temperature, through-hole 111 is tight by annular element 12
Tightly block firm and solid existing fastening, is formed finally by polishing.This technique processes very simple, and 1 bottom surface of inserts made is smooth
Smooth, noise substantially reduces water pump in use, and production cost reduces.And the size of through-hole 111 is less than annular element 12
The size of outer wall, so that forming Hard link between the two, when being restored to room temperature, the two is firmly mutually blocked.
Embodiment 2:
Referring to shown in attached drawing 6-10, a kind of processing technology of Water pump head inner flow passage inserts, including inserts 1, inserts as shown in Figure 6
1 includes main body 11 and annular element 12, and main body 11 is equipped with through-hole 111.Its specific processing technology is as follows:
Step 1, raw material molding；Raw material are cut, are stamped and formed out 1 main body 11 of inserts with through-hole 111；Raw material tubing
It carries out cutting and forms annular element 12, the diameter D1 of annular element 12 is greater than diameter D2,10dmm≤D1-D2≤40dmm of through-hole 111；
Optimal size is 25dmm, and raw material are specially 304 stainless steels herein.
Step 2, shrinkage: carrying out shrinkage for annular element 12, and annular element 12 is placed on the sealed chamber that liquid nitrogen is housed
It is interior, the indoor temperature of seal chamber is controlled by liquid nitrogen, be reduced to the indoor temperature of seal chamber using liquid nitrogen cooling most low energy-
200 DEG C, so that the temperature of annular element 12 is -200 DEG C -- 50 DEG C.
Step 3, assembly: main body 11 is placed in mold 2 and is fixed, annular element 12 is stretched to by through-hole by clamping device
Fixed in 111, the bottom surface of the two fits into total bottom surface, several grooves 21 being adapted to main body 11 are equipped in mold 2；
Step 4, room temperature restore: being placed under normal temperature state and heat up, so that annular element 12 restores deformation；At this time due to annular element 12
Itself is greater than the size of through-hole 111, and the annular element 12 after recovery struts, and through-hole 111 is tightly fixed by annular element 12.
Step 5, welding: main body 11 and the junction of annular element 12 are welded, herein can by spot welding or its
His welding manner, the main bonding strength reinforced between the two, specific welding position is located at body top face.
Step 6, polishing: main body 11 and the bottom surface of annular element 12 are polished, and are polished herein especially by polishing machine
It polishes, so that bottom surface is smooth.
Further, 15dmm≤D1-D2≤30dmm, optimal size are 25dmm, and the height H1 of annular element 12 is at least logical
The three times and annular element 12 of the height H2 in hole 111 are with main body 11 with a thickness of 1mm, and dmm is the unit of decimillimeter, 1 decimillimeter=1/ herein
Ten thousand metres=1/10 millimeter.
Using the chilling shrink process of raw material, so that the installation processing of inserts 1 is more convenient, during the work time due to water pump,
Internal water reduces whole temperature, and maximum temperature is minimum to be all not achieved 0 DEG C, and the effect of the shrinkage of inserts 1 at this time
Very little very little, also can be neglected, and fall off so that main body 11 is not likely to produce with annular element 12；It is arranged using such technique, main body
11 molding is directly cut by a plate by lathe, and punching is formed, process very simple, and its whole thickness with
And hardness is equal；And annular element 12, directly carrying out cutting by the tubing of correspondingly-sized can be realized.Raw material have prepared
Finish, annular element 12 is subjected to shrinkage, so that annular element 12 reduces, annular element 12 reduces at least 50dmm herein, at this point, annular element
12 can easily stretch in through-hole 111 very much, offset with 111 wall of through-hole, and when it is warming up to room temperature, through-hole 111 is by annular element
12 tightly block firm and solid existing fastening, form finally by polishing.This technique processes very simple, and 1 bottom surface of inserts made
Smooth, noise substantially reduces water pump in use, and production cost reduces.And the size of through-hole is less than annular element 12
The size of outer wall, so that forming Hard link between the two, when being restored to room temperature, the two is firmly mutually blocked.
Claims (10)
1. a kind of processing technology of Water pump head inner flow passage inserts, including inserts, inserts includes main body and annular element, in main body
Equipped with through-hole, it is characterised in that: processing technology is as follows:
Step 1, raw material molding；Raw material are cut, are stamped and formed out the insert bodies with through-hole；Raw material tubing is cut
It cuts to form annular element, the diameter D1 of annular element is greater than diameter D2,10dmm≤D1-D2≤40dmm of through-hole；
Step 2, heat expansion or shrinkage: carrying out hot-working for main body, so that through-hole becomes larger or annular element is carried out shrinkage, makes its entirety
Become smaller；
Step 3, assembly: main body is fixed on mold, is stretched in through-hole annular element by clamping device and is fixed；
Step 4, room temperature restore: being placed under normal temperature state, so that main body or annular element restore deformation；
Step 5, polishing: the bottom surface of main body and annular element is polished.
2. a kind of processing technology of Water pump head inner flow passage inserts as described in claim 1, it is characterised in that: hot worked temperature
Degree is 250 DEG C -350 DEG C.
3. a kind of processing technology of Water pump head inner flow passage inserts as claimed in claim 1 or 2, it is characterised in that: in mold
Groove equipped with several and body adaptor, mold is interior to be equipped with heating device, and whole temperature is heated to 270 by heating device
℃-370℃。
4. a kind of processing technology of Water pump head inner flow passage inserts as claimed in claim 3, it is characterised in that: heating device is logical
Cross resistance or electromagnetic heating or infrared heating.
5. a kind of processing technology of Water pump head inner flow passage inserts as described in claim 1, it is characterised in that: the temperature of shrinkage
It is -200 DEG C -- 50 DEG C.
6. a kind of processing technology of Water pump head inner flow passage inserts as claimed in claim 5, it is characterised in that: dropped by liquid nitrogen
Temperature.
7. a kind of processing technology of Water pump head inner flow passage inserts as described in claim 1, it is characterised in that: 15dmm≤D1-
D2≤30dmm。
8. a kind of processing technology of Water pump head inner flow passage inserts as described in claim 1, it is characterised in that: the height of annular element
Degree H1 is at least three times of the height H2 of through-hole.
9. a kind of processing technology of Water pump head inner flow passage inserts as described in claim 1, it is characterised in that: further include weldering
It connects, after room temperature restores, the junction of main body and annular element is welded.
10. a kind of processing technology of Water pump head inner flow passage inserts as described in claim 1, it is characterised in that: the original of inserts
Material is 304 stainless steels.
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN109093329A true CN109093329A (en) | 2018-12-28 |
| CN109093329B CN109093329B (en) | 2020-10-23 |
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|---|---|---|---|
| CN201810934080.6A Active CN109093329B (en) | 2018-08-16 | 2018-08-16 | Processing technology of runner insert in water pump head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN109093329B (en) | 2020-10-23 |
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