CN214488572U - L-shaped copper pipe expanding device - Google Patents
L-shaped copper pipe expanding device Download PDFInfo
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- CN214488572U CN214488572U CN202023195804.1U CN202023195804U CN214488572U CN 214488572 U CN214488572 U CN 214488572U CN 202023195804 U CN202023195804 U CN 202023195804U CN 214488572 U CN214488572 U CN 214488572U
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Abstract
The utility model discloses an L-shaped copper pipe expanding device, which comprises a lower die, an upper die and a forming head, wherein the top of the lower die is provided with an L-shaped lower forming groove, two ends of the lower forming groove respectively extend to two adjacent side surfaces of the lower die, and the section of the lower forming groove, which is vertical to the extending direction, is semicircular; the upper die is arranged above the lower die and can move up and down to be close to or far away from the lower die, the bottom surface of the upper die is provided with an upper forming groove which is the same as the lower forming groove and is opposite to the lower forming groove in the up-down direction, and the upper die and the lower die are matched to form a forming hole; the forming head is coaxially arranged outside the lower die in a manner of being right opposite to the end opening of the forming hole, can move in a translation mode along the axis direction of the forming head to stretch into the forming hole, and is matched with the inner wall of the forming hole to perform expanding forming on the end opening of the L-shaped copper pipe. The utility model discloses can carry out hole enlargement and whole circle to the tip opening of L type copper pipe, and cooperate the extrusion through shaping hole and shaping head, guarantee that the thickness of hole enlargement department is even, guarantee use strength, improve product quality, increase of service life.
Description
Technical Field
The utility model belongs to the technical field of the copper pipe hole enlargement device, especially, relate to a L type copper pipe hole enlargement device.
Background
The copper pipe is also called copper pipe, is a pressed and drawn seamless pipe, belonging to a kind of nonferrous metal pipe. The copper pipe has good electrical conductivity and thermal conductivity, is strong in corrosion resistance, is not easy to oxidize, is not easy to chemically react with a plurality of liquid substances, and is easy to be subjected to bright bending modeling, so that the copper pipe is a main material of a conductive fitting and a heat dissipation fitting of an electronic product, and becomes a first choice of a tap water pipeline, a heat supply pipeline and a refrigeration pipeline of a residential commodity room of a modern building contractor. The L-shaped copper pipe is processed in a mode that a long straight copper pipe is bent and cut on a machine, so that the cut of the L-shaped copper pipe which is processed and formed is not round and needs to be round; and the end opening of the copper pipe generally needs to be expanded to facilitate the connection between the copper pipes. The existing diameter-expanding technology of the copper pipe generally comprises the steps of extending a forming head into the end opening of the copper pipe and extruding the copper pipe from the inside to achieve the purpose of expanding the diameter, wherein the diameter-expanding part of the processed copper pipe is uneven in thickness, easy to crack and low in strength.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a L type copper pipe hole enlargement device can expand and the whole circle to the tip opening of L type copper pipe, and cooperatees the extrusion through shaping hole and shaping head, guarantees that the thickness of L type copper pipe hole enlargement department is even, guarantees the intensity of L type copper pipe, improves product quality, increase of service life, and the practicality is strong.
In order to achieve the above object, the utility model provides an L type copper pipe hole enlargement device which is characterized in that, the L type copper pipe hole enlargement device comprises a lower die, an upper die and a forming head, the top of the lower die is provided with an L type lower forming groove, two ends of the lower forming groove respectively extend to two adjacent side surfaces of the lower die, and the cross section of the lower forming groove, which is perpendicular to the extending direction, is semicircular; the upper die is arranged above the lower die and can move up and down to be close to or far away from the lower die, an upper forming groove which is the same as the lower forming groove and is opposite to the lower forming groove in the up-down direction is formed in the bottom surface of the upper die, and the upper die and the lower die are assembled to form a forming hole so as to position and fix the L-shaped copper pipe; the forming head is coaxially arranged on the outer side of the lower die opposite to the end opening of the forming hole, and can move in a translation mode along the axis direction of the forming head to stretch into the forming hole so as to extrude the inner wall of the end opening of the L-shaped copper pipe and match the inner wall of the forming hole to perform expanding forming on the end opening of the L-shaped copper pipe.
In one example, the forming head is in a stepped shaft shape, the outer diameter of the front end of the forming head is smaller than the outer diameter of the rear end of the forming head and is equal to the preset inner diameter of the end opening of the L-shaped copper pipe after the L-shaped copper pipe is expanded, and the outer edge of the front end of the forming head is further provided with an arc-shaped chamfer.
In one example, the end part of the forming hole is provided with a stepped hole, the inner diameter of the end opening of the forming hole is equal to the preset outer diameter of the expanded end part of the L-shaped copper pipe, and the inner diameter of the middle part of the forming hole is equal to the outer diameter of the middle part of the L-shaped copper pipe.
In one example, go up the mould bottom surface and be provided with a plurality ofly along its diagonal equidistance go up the shaping groove, the lower mould top surface is provided with a plurality ofly along its diagonal equidistance down the shaping groove.
In one example, a cavity is formed in the forming head, and a heating assembly is arranged in the cavity to heat the end part of the L-shaped copper pipe.
In one example, the L-shaped copper pipe expanding device further comprises an infrared generator and an infrared sensor, the infrared generator is arranged on one side of the lower die, the bottom of the infrared generator is flush with the top surface of the lower die, the infrared sensor is arranged on the other side of the lower die, the infrared sensor is flush with the infrared generator and is arranged opposite to the infrared generator, and the infrared generator can emit infrared rays towards the infrared sensor; the L-shaped copper pipe expanding device is provided with a plurality of groups of infrared generators and infrared sensors.
Through the utility model provides a diameter expanding device for L-shaped copper pipe can bring following beneficial effect:
1. the utility model discloses a L type copper pipe hole enlargement device can expand and the whole circle to the tip opening of L type copper pipe, and cooperatees the extrusion through shaping hole and shaping head, guarantees that the thickness of L type copper pipe hole enlargement department is even, guarantees the intensity of L type copper pipe, improves product quality, increase of service life, and the practicality is strong.
2. By arranging the step shaft-shaped forming head, the stable sliding of the forming head in the forming hole can be ensured, the diameter expanding size and the diameter expanding depth can be ensured, the defective rate is reduced, the product quality is improved, and the practicability is high.
3. Through setting up the step hole, can stabilize the middle part of centre gripping L type copper pipe, can also provide the space of hole enlargement, and cooperation shaping head extrusion L type copper pipe, guarantee the shaping effect, promote product quality, the practicality is strong.
4. Through setting up multiunit shaping groove, can improve machining efficiency greatly, reduce equipment cost, the practicality is strong.
5. Through setting up heating element, can heat the tip of L type copper pipe, the reinforcing mobility reduces the shaping degree of difficulty, guarantees the shaping effect, and the practicality is strong.
6. Through setting up infrared generator and infrared sensor, can detect the foreign matter that is located between mould and lower mould to can prevent the continuation motion of going up the mould, guarantee staff's safety can also avoid the foreign matter to damage mould and lower mould, and the practicality is strong.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a schematic structural view of an L-shaped copper pipe expanding device of the present invention;
fig. 2 is a top view of the lower mold of the present invention;
FIG. 3 is a schematic view of the lower mold and the forming head of the present invention;
fig. 4 is a cross-sectional view of the molding head of the present invention.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.
As shown in fig. 1 to 4, an embodiment of the present invention provides an L-shaped copper pipe expanding device 100, which includes a lower die 1, an upper die 2 and a forming head 3, wherein an L-shaped lower forming groove 11 is formed at the top of the lower die 1, two ends of the lower forming groove 11 respectively extend to two adjacent side surfaces of the lower die 1, and a cross section of the lower forming groove 11 perpendicular to the extending direction thereof is semicircular; the upper die 2 is arranged above the lower die 1 and can move up and down to be close to or far away from the lower die 1, the bottom surface of the upper die 2 is provided with an upper forming groove which is the same as the lower forming groove 11 and is opposite to the lower forming groove in the up-down direction, and the upper die 2 and the lower die 1 are matched to form a forming hole so as to position and fix the L-shaped copper pipe; the forming head 3 is coaxially arranged outside the lower die 1 just opposite to the end opening of the forming hole, and the forming head 3 can move in a translation mode along the axis direction of the forming head to stretch into the forming hole so as to extrude the inner wall of the end opening of the L-shaped copper pipe and be matched with the inner wall of the forming hole to perform expanding forming on the end opening of the L-shaped copper pipe. The utility model discloses a L type copper pipe hole enlargement device 100 can expand and the whole circle to the tip opening of L type copper pipe, and cooperates the extrusion through shaping hole and shaping head 3, guarantees that the thickness of L type copper pipe hole enlargement department is even, guarantees the intensity of L type copper pipe, improves product quality, increase of service life, and the practicality is strong.
In one embodiment, the forming head 3, the upper mold 2 and the lower mold 1 are made of mold steel with high purity and low sulfur content, and the specific materials are electroslag H13, 1.2344, 2344ESR, SKD61, DAC55, DHA1, 8407, W302, 8418, sulfur-free 8407, sulfur-free 8418, and the like.
Specifically, the forming head 3 is in a stepped shaft shape, the outer diameter of the front end of the forming head 3 is smaller than that of the rear end of the forming head and is equal to the preset inner diameter of an end opening of the L-shaped copper pipe after the L-shaped copper pipe is expanded, and an arc-shaped chamfer is further arranged on the outer edge of the front end of the forming head 3. Through setting up the shaping head 3 of step shaft shape, can guarantee that shaping head 3 steadily slides in the shaping downthehole, and can guarantee the size of expanding and the degree of depth of expanding, reduce the defective percentage, improve product quality, the practicality is strong.
Specifically, the end part of the forming hole is set to be a stepped hole, the inner diameter of the opening at the end part of the forming hole is equal to the preset outer diameter of the expanded end part of the L-shaped copper pipe, and the inner diameter of the middle part of the forming hole is equal to the outer diameter of the middle part of the L-shaped copper pipe. Through setting up the step hole, can stabilize the middle part of centre gripping L type copper pipe, can also provide the space of hole enlargement, and cooperate the first 3 extrusion L type copper pipes of shaping, guarantee the shaping effect, promote product quality, the practicality is strong.
Specifically, go up the mould 2 bottom surface and be provided with a plurality of shaping grooves on along its diagonal equidistance, lower mould 1 top surface is provided with a plurality of shaping grooves 11 down along its diagonal equidistance. Through setting up multiunit shaping groove, can improve machining efficiency greatly, reduce equipment cost, the practicality is strong.
Specifically, a cavity 31 is opened inside the forming head 3, and a heating assembly 32 is disposed in the cavity 31 to heat the end of the L-shaped copper tube. Through setting up heating element 32, can heat the tip of L type copper pipe, the reinforcing mobility reduces the shaping degree of difficulty, guarantees the shaping effect, and the practicality is strong.
In one embodiment, the heating element 32 is a heating wire.
Specifically, the L-shaped copper pipe expanding device 100 further comprises an infrared generator 4 and an infrared sensor 5, the infrared generator 4 is arranged on one side of the lower die 1, the bottom of the infrared generator 4 is flush with the top surface of the lower die 1, the infrared sensor 5 is arranged on the other side of the lower die 1, the infrared sensor 5 is flush with the infrared generator 4 and is arranged opposite to the infrared generator 4, and the infrared generator 4 can emit infrared rays towards the infrared sensor 5; the L-shaped copper pipe expanding device 100 is provided with a plurality of groups of infrared generators 4 and infrared sensors 5. Through setting up infrared generator 4 and infrared sensor 5, can detect the foreign matter that is located between mould 2 and lower mould 1 to can prevent the continuation motion of mould 2, guarantee staff's safety can also avoid the foreign matter to damage and go up mould 2 and lower mould 1, and the practicality is strong.
In a specific embodiment, when the distance between the upper mold 2 and the lower mold 1 is less than 0.5cm, the infrared generator 4 and the infrared sensor 5 will not affect the movement of the upper mold 2.
The utility model discloses a L type copper pipe expanding device 100 is when using: firstly, an L-shaped copper pipe to be processed is placed in a lower forming groove 11 of a lower die 1, an upper die 2 descends to press the lower die 1 and clamp the L-shaped copper pipe, and in the descending process of the upper die 2, an infrared generator 4 and an infrared sensor 5 can detect foreign matters between the upper die 2 and the lower die 1 and can prevent the upper die 2 from continuously descending; then, the heating assembly 32 heats the forming head 3, the forming head 3 extends into the forming hole from two ends, and the forming head is matched with the inner wall of the forming hole to extrude the L-shaped copper pipe so as to complete expanding and rounding; and finally, the forming head 3 leaves the L-shaped copper pipe, the upper die 2 moves upwards to leave the lower die 1, and the L-shaped copper pipe is manually taken out.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. The L-shaped copper pipe expanding device is characterized by comprising a lower die, an upper die and a forming head, wherein an L-shaped lower forming groove is formed in the top of the lower die, two ends of the lower forming groove respectively extend to two adjacent side faces of the lower die, and the cross section of the lower forming groove, perpendicular to the extending direction of the lower forming groove, is semicircular; the upper die is arranged above the lower die and can move up and down to be close to or far away from the lower die, an upper forming groove which is the same as the lower forming groove and is opposite to the lower forming groove in the up-down direction is formed in the bottom surface of the upper die, and the upper die and the lower die are assembled to form a forming hole so as to position and fix the L-shaped copper pipe; the forming head is coaxially arranged on the outer side of the lower die opposite to the end opening of the forming hole, and can move in a translation mode along the axis direction of the forming head to stretch into the forming hole so as to extrude the inner wall of the end opening of the L-shaped copper pipe and match the inner wall of the forming hole to perform expanding forming on the end opening of the L-shaped copper pipe.
2. The L-shaped copper pipe expanding device according to claim 1, wherein the forming head is in a stepped shaft shape, the outer diameter of the front end of the forming head is smaller than the outer diameter of the rear end of the forming head and is equal to the preset inner diameter of the end opening of the L-shaped copper pipe after expanding, and an arc-shaped chamfer is further arranged on the outer edge of the front end of the forming head.
3. The L-shaped copper pipe expanding device according to claim 2, wherein the end part of the forming hole is provided with a stepped hole, the inner diameter of the opening at the end part of the forming hole is equal to the preset outer diameter of the expanded end part of the L-shaped copper pipe, and the inner diameter of the middle part of the forming hole is equal to the outer diameter of the middle part of the L-shaped copper pipe.
4. An L-shaped copper pipe expanding device according to claim 1, wherein said upper die bottom surface is provided with a plurality of said upper forming grooves along its diagonal at equal intervals, and said lower die top surface is provided with a plurality of said lower forming grooves along its diagonal at equal intervals.
5. The L-shaped copper pipe expanding device according to claim 1, wherein a cavity is formed in the forming head, and a heating assembly is arranged in the cavity to heat the end of the L-shaped copper pipe.
6. The L-shaped copper pipe expanding device according to any one of claims 1 to 5, further comprising an infrared generator and an infrared sensor, wherein the infrared generator is arranged on one side of the lower die, the bottom of the infrared generator is flush with the top surface of the lower die, the infrared sensor is arranged on the other side of the lower die, the infrared sensor is flush with the infrared generator and is arranged opposite to the infrared generator, and the infrared generator can emit infrared rays towards the infrared sensor; the L-shaped copper pipe expanding device is provided with a plurality of groups of infrared generators and infrared sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023195804.1U CN214488572U (en) | 2020-12-25 | 2020-12-25 | L-shaped copper pipe expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023195804.1U CN214488572U (en) | 2020-12-25 | 2020-12-25 | L-shaped copper pipe expanding device |
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| Publication Number | Publication Date |
|---|---|
| CN214488572U true CN214488572U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023195804.1U Active CN214488572U (en) | 2020-12-25 | 2020-12-25 | L-shaped copper pipe expanding device |
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|---|---|
| CN (1) | CN214488572U (en) |
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- 2020-12-25 CN CN202023195804.1U patent/CN214488572U/en active Active
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