CN219786319U - Necking die with rollers - Google Patents
Necking die with rollers Download PDFInfo
- Publication number
- CN219786319U CN219786319U CN202321106360.0U CN202321106360U CN219786319U CN 219786319 U CN219786319 U CN 219786319U CN 202321106360 U CN202321106360 U CN 202321106360U CN 219786319 U CN219786319 U CN 219786319U
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- China
- Prior art keywords
- necking
- piece
- necking die
- die
- aluminum flat
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 68
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 68
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The utility model relates to a necking die with rollers, which comprises an annular machine head, a necking piece, a fixing piece, a rolling piece and a driving piece, wherein the necking piece is arranged on the annular machine head through the fixing piece, the rolling piece is arranged on the necking piece, an aluminum flat tube is rolled, and the driving piece is arranged on the necking piece and drives the necking piece. Through mutually supporting between throat spare and the roll extrusion spare to avoid the wherein to appear the bulge when the flat pipe throat of aluminium, be convenient for with its direct insertion collector tube in, labour saving and time saving has improved production efficiency.
Description
Technical Field
The utility model relates to a necking die with rollers.
Background
The air conditioner heat exchanger is formed by utilizing the principle of evaporation refrigeration, has unique heat dissipation performance, is higher than the heat conduction efficiency of a solid radiator, is widely applied to industrial refrigeration, and is mainly formed by assembling a plurality of aluminum alloy microchannel flat tubes; in the assembling process, the two ends of the micro-channel flat tube need step necking, so that the limiting is conveniently carried out when the micro-channel flat tube is inserted into the collecting pipe, and the insertion depth of each aluminum flat tube in the core body is the same; however, the thickness of the aluminum flat tube is generally about 1.2mm, the thickness is thinner, and the hardness is softer, so that the middle part of the aluminum flat tube is easy to bulge after the aluminum flat tube is necked by the existing necking die, and the situation that the end surface is uneven after the aluminum flat tube is cut off is caused, so that the aluminum flat tube is difficult to insert into a liquid collecting tube, secondary flattening is needed, and time and labor are consumed.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
The utility model aims to solve the technical problems that the middle part of an aluminum flat pipe is easy to bulge after the aluminum flat pipe is contracted by the existing necking die, and the end face of the aluminum flat pipe is uneven after the aluminum flat pipe is cut off, so that the aluminum flat pipe is difficult to insert into a liquid collecting pipe, and the aluminum flat pipe needs to be flattened for the second time and is time-consuming and labor-consuming.
In order to solve the technical problems, the utility model provides the following technical scheme: a necking die with rollers comprises a necking die body,
the device comprises an annular machine head, a necking piece, a fixing piece, a rolling piece and a driving piece, wherein the necking piece is arranged on the annular machine head through the fixing piece, the rolling piece is arranged on the necking piece, an aluminum flat tube is rolled, and the driving piece is arranged on the necking piece and drives the necking piece;
the necking piece comprises a first necking die and a second necking die, the first necking die and the second necking die are symmetrically arranged on the annular machine head, forming portions are arranged on the first necking die and the second necking die, and notch corresponding to the thickness of the aluminum flat tube is formed in the forming portions.
As a preferable scheme of the necking die with the roller, the utility model comprises the following steps: the fixing piece comprises a first clamping plate and a second clamping plate, and the first clamping plate and the second clamping plate are symmetrically arranged on two sides of the first necking die and the second necking die.
As a preferable scheme of the necking die with the roller, the utility model comprises the following steps: the rolling piece comprises an axle, rollers and snap springs, wherein the axle is symmetrically arranged on the first necking die and the second necking die and positioned on two sides of the notch, the rollers are arranged on the axle, the diameter of each roller is matched with the thickness of the aluminum flat tube, and the snap springs are arranged at two ends of the axle to fix the axle.
As a preferable scheme of the necking die with the roller, the utility model comprises the following steps: the driving piece comprises a first air cylinder and a second air cylinder, wherein the first air cylinder and the second air cylinder are respectively arranged on the first necking die and the second necking die and drive the first necking die and the second necking die to reciprocate so as to shrink the aluminum flat tube.
As a preferable scheme of the necking die with the roller, the utility model comprises the following steps: the port angle of the forming part is 20-30 degrees, and the forming part plays a role in guiding the aluminum flat tube.
As a preferable scheme of the necking die with the roller, the utility model comprises the following steps: the depth of the notch is smaller than half of the size of the shrinkage opening of the aluminum flat tube, and collision between the first shrinkage die and the second shrinkage die is prevented.
The beneficial effects are that:
1. the rollers are arranged on the first necking die and the second necking die, and in the process of necking the aluminum flat tube by the first necking die and the second necking die, the rollers roll the upper surface and the lower surface of the aluminum flat tube simultaneously, so that the situation that the middle part of the aluminum flat tube bulges after necking is finished, and the end face is uneven after cutting is avoided, and the aluminum flat tube is conveniently inserted into the liquid collecting tube;
2. the port angles of the forming parts of the first necking die and the second necking die are designed to be 20-30 degrees, so that a better guiding effect is achieved on the aluminum flat tube.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the whole structure of a necking die with rollers.
Fig. 2 is a front view of a first necking die of the necking die with rollers.
Fig. 3 is a left side view of a first necking die of the necking die with rollers.
Fig. 4 is a state diagram of the necking die with the roller when the aluminum flat tube is subjected to necking.
Fig. 5 is a state diagram of the necking die with the roller after the aluminum flat tube is necked.
In the figure: 100. a ring-shaped handpiece; 200. a necking piece; 201. a first necking die; 202. a second necking die; 203. a molding part; 203a, a notch; 300. a fixing member; 301. a first clamping plate; 302. a second clamping plate; 400. a rolling member; 401. a wheel axle; 402. a roller; 403. clamping springs; 500. a driving member; 501. a first cylinder; 502. and a second cylinder.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1, a necking die with rollers according to a first embodiment of the present utility model includes a ring-shaped head 100, a necking member 200, a fixing member 300, a rolling member 400, and a driving member 500.
Specifically, the necking piece 200 is arranged on the annular machine head 100 through the fixing piece 300, the rolling piece 400 is arranged on the necking piece 200, the rolling aluminum flat tube is rolled, the driving piece 500 is arranged on the necking piece 200, and the necking piece 200 is driven; the necking piece 200 comprises a first necking die 201 and a second necking die 202, the first necking die 201 and the second necking die 202 are symmetrically arranged on the annular machine head 100, forming portions 203 are arranged on the first necking die 201 and the second necking die 202, and notch 203a corresponding to the thickness of the aluminum flat tube is arranged on the forming portions 203.
The annular machine head 100 is provided with the fixing piece 300, the fixing piece 300 is provided with the necking piece 200, the necking piece 200 is mainly composed of a first necking die 201 and a second necking die 202, the first necking die 201 and the second necking die 202 are symmetrically arranged on two sides of a round hole of the annular machine head 100, the first necking die 201 and the second necking die 202 are respectively provided with a forming part 203, the forming parts 203 are respectively provided with a notch 203a corresponding to the thickness of an aluminum flat pipe, the forming parts 203 of the first necking die 201 and the second necking die 202 are respectively provided with a rolling piece 400, one ends, far away from the forming parts 203, of the first necking die 201 and the second necking die 202 are respectively provided with a driving piece 500, the aluminum flat pipe passes through the round hole of the annular machine head 100, the driving pieces 500 drive the first necking die 201 and the second necking die 202 to move towards the middle of the round hole, in the process, the rolling pieces 400 roll the aluminum flat pipe after the aluminum flat pipe is completed, the end faces of the aluminum flat pipe are cut off, the end faces of the aluminum flat pipe cannot be inserted into the flat pipe in a flat pipe, the liquid collecting pipe can be directly flattened, and the liquid collecting efficiency of the liquid collecting personnel can be avoided, and the liquid collecting efficiency of the liquid collecting personnel can be improved.
Example 2
Referring to fig. 1 to 5, this embodiment is based on the previous embodiment, which is a second embodiment of the present utility model.
Specifically, the fixing member 300 includes a first clamping plate 301 and a second clamping plate 302, where the first clamping plate 301 and the second clamping plate 302 are symmetrically disposed on two sides of the first necking die 201 and the second necking die 202.
The first clamping plate 301 and the second clamping plate 302 are symmetrically installed on two sides of the first necking die 201 and the second necking die 202 through bolts so as to fix the first necking die 201 and the second necking die 202 on two sides of a round hole of the annular machine head 100, and meanwhile, the first necking die 201 and the second necking die 202 are in sliding connection with the first clamping plate 301 and the second clamping plate 302, so that the first necking die 201 and the second necking die 202 can slide freely.
The rolling piece 400 comprises an axle 401, rollers 402 and a clamp spring 403, wherein the axle 401 is symmetrically arranged on the first necking die 201 and the second necking die 202 and positioned on two sides of the notch 203a, the rollers 402 are arranged on the axle 401, the diameter of each roller 402 is matched with the thickness of the aluminum flat tube, the clamp spring 403 is arranged at two ends of the axle 401, and the axle 401 is fixed.
Wheel shafts 401 are symmetrically arranged on forming portions 203 of the first necking die 201 and the second necking die 202, the wheel shafts 401 are located on two sides of a notch 203a, roller wheels 402 are rotatably arranged on the wheel shafts 401, the diameters of the roller wheels 402 are matched with the thickness of an aluminum flat tube, so that the distance between the two roller wheels 402 is consistent with the thickness of the aluminum flat tube, the fact that the upper surface and the lower surface of the roller wheels 402 are just contacted when necking is conducted on two ends of the aluminum flat tube is guaranteed, similarly, a worker can select the roller wheels 402 matched with the aluminum flat tube according to the thickness of the aluminum flat tube, namely, the roller wheels 402 with different diameters can be selected according to the thickness of the aluminum flat tube, rolling is conducted on the aluminum flat tube with different thicknesses, applicability is improved, clamp springs 403 are arranged at two ends of the wheel shafts, and the roller shafts 401 are better fixed on the forming portions 203 through the clamp springs 403.
The driving member 500 includes a first cylinder 501 and a second cylinder 502, and the first cylinder 501 and the second cylinder 502 are respectively disposed on the first necking die 201 and the second necking die 202.
One end of the first necking die 201 and the second necking die 202, which are far away from the forming part 203, are fixedly connected with a first air cylinder 501 and a second air cylinder 502 respectively through pin holes, and the first air cylinder 501 and the second air cylinder 502 drive the first necking die 201 and the second necking die 202 to synchronously reciprocate so as to realize simultaneous necking of two ends of an aluminum flat pipe.
The port angle of the molding portion 203 is 20 to 30 degrees.
Through setting the port angles of the forming parts 203 of the first necking die 201 and the second necking die 202 to 20-30 degrees, the aluminum flat tube is better guided, the forming parts 203 of the first necking die 201 and the second necking die 202 are more convenient to shrink the two ends of the aluminum flat tube, and the working efficiency is improved.
The depth of the notch 203a is less than half the size of the aluminum flat tube shrinkage.
The depth of the notch 203a is set to be smaller than half of the size of the shrinkage opening of the aluminum flat tube, so that the first shrinkage die 201 and the second shrinkage die 202 are prevented from collision when the two ends of the aluminum flat tube are subjected to shrinkage opening, and a certain protection effect is achieved on the first shrinkage die 201 and the second shrinkage die 202.
When the aluminum flat tube is used, after the aluminum flat tube reaches a designated position through the round hole of the annular machine head 100, the driving piece 500 is started to enable the first air cylinder 501 and the second air cylinder 502 to drive the first necking die 201 and the second necking die 202 to synchronously move towards the round hole direction of the annular machine head 100, the roller 402 on the forming part 203 contacts the upper surface and the lower surface of the aluminum flat tube, the first necking die 201 and the second necking die 202 keep moving horizontally, two ends of the aluminum flat tube enter the notch 203a through the port of the forming part 203 until the two ends of the aluminum flat tube are extruded, in the process, the upper surface and the lower surface of the aluminum flat tube are limited by the roller 402, the situation that the middle of the aluminum flat tube bulges is avoided, and meanwhile, the roller 402 also realizes preliminary rolling on the aluminum flat tube, so that the necking end faces of the aluminum flat tube are kept flat; after the necking is completed at the two ends of the aluminum flat tube, the first necking die 201 and the second necking die 202 respectively move towards the direction away from the round hole of the annular machine head 100, in the process, the roller 402 clings to the aluminum flat tube again and rolls the upper surface and the lower surface of the aluminum flat tube, the flatness of the necking end face of the aluminum flat tube is guaranteed again, so that the aluminum flat tube is conveniently inserted into the liquid collecting tube, the aluminum flat tube is formed at one time, time and labor are saved, and the production efficiency is improved.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (6)
1. The utility model provides a take necking die of gyro wheel which characterized in that: comprising the steps of (a) a step of,
the device comprises an annular machine head (100), a necking piece (200), a fixing piece (300), a rolling piece (400) and a driving piece (500), wherein the necking piece (200) is arranged on the annular machine head (100) through the fixing piece (300), the rolling piece (400) is arranged on the necking piece (200), an aluminum flat tube is rolled, and the driving piece (500) is arranged on the necking piece (200) to drive the necking piece;
the necking piece (200) comprises a first necking die (201) and a second necking die (202), the first necking die (201) and the second necking die (202) are symmetrically arranged on the annular machine head (100), forming portions (203) are arranged on the first necking die (201) and the second necking die (202), and notch (203 a) corresponding to the thickness of the aluminum flat tube is formed in the forming portions (203).
2. The necking die with rollers as claimed in claim 1, wherein: the fixing piece (300) comprises a first clamping plate (301) and a second clamping plate (302), and the first clamping plate (301) and the second clamping plate (302) are symmetrically arranged on two sides of the first necking die (201) and the second necking die (202).
3. The necking die with rollers as claimed in claim 2, wherein: the rolling piece (400) comprises an axle (401), rollers (402) and clamp springs (403), wherein the axle (401) is symmetrically arranged on the first necking die (201) and the second necking die (202) and located on two sides of a notch (203 a), the rollers (402) are arranged on the axle (401), the diameters of the rollers (402) are matched with the thickness of an aluminum flat tube, and the clamp springs (403) are arranged at two ends of the axle (401) to fix the axle.
4. A necking die with rollers as claimed in claim 3 in which: the driving piece (500) comprises a first air cylinder (501) and a second air cylinder (502), and the first air cylinder (501) and the second air cylinder (502) are respectively arranged on the first necking die (201) and the second necking die (202).
5. The necking die with rollers as claimed in claim 1, wherein: the port angle of the molding part (203) is 20-30 degrees.
6. The necking die with rollers as claimed in claim 1, wherein: the depth of the notch (203 a) is smaller than half of the shrinkage size of the aluminum flat tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321106360.0U CN219786319U (en) | 2023-05-09 | 2023-05-09 | Necking die with rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321106360.0U CN219786319U (en) | 2023-05-09 | 2023-05-09 | Necking die with rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219786319U true CN219786319U (en) | 2023-10-03 |
Family
ID=88153448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321106360.0U Active CN219786319U (en) | 2023-05-09 | 2023-05-09 | Necking die with rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219786319U (en) |
-
2023
- 2023-05-09 CN CN202321106360.0U patent/CN219786319U/en active Active
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