Bending die and heat pipe bending machine
By designing a bending mold including a mold seat, a linkage mechanism and multiple guide wheels, the problem of difficult to control the bending angle of the heat pipe is solved, and convenient forming of different bending radii of the heat pipe and improvement of yield is achieved.
Patent Information
- Application Number
- CN202422205883.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The angle of the bending of the heat pipe is difficult to control, especially the multiple bends and the radius of each bend is different, resulting in a low yield rate.
A bending mold is designed, including a mold seat, a linkage mechanism and a number of guide wheels of different sizes. Through the sliding of the mold seat and the driving of the linkage mechanism, the vertical and horizontal movement of the guide wheel is realized, thereby completing the switching of the guide wheel and realizing the forming of different bend radii of the heat pipe.
Through the design of the mold seat and linkage mechanism, the convenient forming of different bend radii of the heat pipe is achieved, and the controllability and yield of the bending angle are improved.
Smart Images
Figure CN223043404U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat pipe processing equipment, in particular to a bending die, and also relates to a heat pipe bending machine. Background Art
[0002] Heat pipes make full use of the principle of heat conduction and the rapid heat transfer property of the phase change medium, and transfer the heat of the heat-generating object to the outside of the heat source quickly through the heat pipe. Heat pipes are widely used. In order to adapt to various application scenarios, it is often necessary to bend the heat pipes.
[0003] In practice, it is not easy to control the bending angle of the heat pipe. Especially when a heat pipe needs to be bent multiple times and the bending radius is different each time, the yield rate is low. Summary of the Utility Model
[0004] In view of the deficiencies in the prior art, the utility model provides a bending die and a heat pipe bending machine, which can solve or at least alleviate one or more of the above problems and other problems existing in the prior art.
[0005] The utility model provides a bending die, including:
[0006] A die base;
[0007] A linkage mechanism, arranged side by side on the die base; and
[0008] A plurality of guide wheels with different sizes, respectively arranged on different linkage mechanisms, and an annular guide groove along the circumferential direction is formed on each guide wheel;
[0009] The linkage mechanism can drive the guide wheel to move vertically and horizontally on the die base; the annular guide groove is used for guiding when the heat pipe rotates around the guide wheel.
[0010] Preferably, a plurality of first mounting holes are formed in the die base, which are arranged side by side and penetrate vertically; an outer stopper is connected to the lower end of the die base corresponding to each first mounting hole;
[0011] The linkage mechanism includes:
[0012] A square mounting cylinder, slidably arranged vertically in the first mounting hole; and
[0013] A support block, slidably arranged horizontally in the square mounting cylinder;
[0014] The guide wheel is connected to the upper end of the support block; the lower end of the outer stopper can limit the lower end of the square mounting cylinder.
[0015] Preferably, a transverse second mounting hole is opened on one side of the support block; a coaxial first spring is arranged in the second mounting hole; two ends of the first spring respectively abut against the bottom of the second mounting hole and the inner wall of the square mounting tube.
[0016] Preferably, one side of each of the guide wheels is kept flush with a side surface of the support block on which the second mounting hole is formed.
[0017] Preferably, the lower end of the outer wall of the support block on the side away from the second mounting hole is provided with an inwardly inclined inclined surface; the lower end of the support block is provided with a third mounting hole;
[0018] The linkage mechanism also includes:
[0019] An inner plate is vertically slidably disposed in the square mounting tube;
[0020] A control member, the lower end of which is connected to one end of the inner panel, and the upper end of which corresponds to the inclined surface of the support block;
[0021] A guide column, the upper end of which is retained in the third mounting hole and is clearance-matched with the third mounting hole, and the lower end of which is slidably disposed on the inner panel; and
[0022] A second spring, which is sleeved outside the guide column, and whose two ends are respectively connected to the support block and the inner plate;
[0023] The upper end of the control member can be inserted between the inner wall of the square mounting tube and the support block, and push the support block to approach the inner wall of one side of the square mounting tube; first inner stoppers extending inward are provided on both sides of the lower port portion of the square mounting tube; the first inner stopper is used to limit the lower end of the inner panel; the upper port portion of the first mounting hole is provided with a second inner stopper extending inward; the second inner stopper is used to limit the upper end of the square mounting tube.
[0024] Preferably, the inner panel is provided with a transversely arranged mounting groove;
[0025] The linkage mechanism also includes a slider and an external component; the slider is slidably arranged in the mounting groove; the slider is connected to the lower end of the guide column; the external component is connected to the lower end of the inner plate, and the lower end of the external component passes through the lower end of the square mounting tube and is suspended in the air; the lower end of the external component is used to abut against the output end of the hydraulic cylinder on the bending machine.
[0026] The utility model also provides a heat pipe bending machine, comprising any one of the bending molds described above.
[0027] Compared with the prior art, the utility model has the following beneficial effects:
[0028] In the technology of the present utility model, through the sliding of the die base, the linkage mechanism drives the guide wheels to move vertically and horizontally, thereby completing the switching of the guide wheels and realizing the forming of different bending radii of the heat pipe, which is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.
[0030] Figure 1 A perspective view of a heat pipe bending machine in an embodiment of the present utility model;
[0031] Figure 2 is Figure 1 a perspective view of a bending die in
[0032] Figure 3 is Figure 2 an exploded view of the bending die in
[0033] Figure 4 is Figure 2 a sectional view of a linkage mechanism in the bending die in
[0034] Figure 5 is Figure 4 an enlarged view of the sectional part in
[0035] Figure 6 is Figure 2 an exploded view of the linkage mechanism in the bending die in
[0036] Figure 7 is Figure 6 another perspective view of
[0037] Reference numerals:
[0038] 10. Die base; 11. First mounting hole; 12. Outer retaining piece; 13. Second inner retaining piece;
[0039] 20. Linkage mechanism; 21. Square mounting cylinder; 22. Support block; 221. Second mounting hole; 222. Third mounting hole; 23. First spring; 24. Inner mounting plate; 241. Mounting groove; 242. External connecting piece; 25. Control piece; 26. Guide post; 27. Second spring; 28. First inner retaining piece; 29. Slide block; 30. Guide wheel; 31. Annular guide groove;
[0040] 40. Electric push rod; 41. Hydraulic cylinder; 42. Bending mechanism; 43. Heat pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0041] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and thus are only examples and cannot be used to limit the protection scope of the present utility model.
[0042] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art to which the present utility model belongs.
[0043] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.
[0044] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.
[0045] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0046] In this application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0047] SeeFigures 1 to 7 , this embodiment provides a bending die, which includes a die base 10, a plurality of linkage mechanisms 20, and a plurality of guide wheels 30 with different sizes.
[0048] The die base 10 is slidably arranged on the frame of the bending machine (not shown), and a multi-stage electric push rod 40 is also arranged on the frame. The output end of the electric push rod 40 is connected to the die base 10. A hydraulic cylinder 41 is arranged below the die base 10, and the hydraulic cylinder 41 is arranged on the frame. The bending machine also has a bending mechanism 42, and the bending mechanism 42 can drive the heat pipe 43 to rotate around the guide wheel 30. The whole bending mechanism 42 can rotate around the guide wheel 30. It should be noted that the bending machine belongs to the prior art and will not be elaborated here.
[0049] A plurality of linkage mechanisms 20 are arranged side by side on the die base 10. The output end of the hydraulic cylinder 41 can extend upward to jack up the linkage mechanism 20.
[0050] A plurality of guide wheels 30 with different sizes are respectively arranged on different linkage mechanisms 20, and an annular guide groove 31 is formed on each guide wheel 30 along the circumferential direction. The plurality of guide wheels 30 can be arranged according to the size. The structure of the guide wheel 30 can refer to that of a pulley. The cross-sectional areas of the annular guide grooves 31 on the guide wheels 30 with different sizes are the same, but the inner space area of the annular guide groove 31 is annular and the radius of the annular area is different, so as to facilitate the forming of different bending radii of the heat pipe 43. The linkage mechanism 20 can drive the guide wheel 30 to move vertically and horizontally on the die base 10. The annular guide groove 31 is used for guiding when the heat pipe 43 rotates around the guide wheel 30.
[0051] In this embodiment, the bending machine clamps the end of the heat pipe 43 and advances. The other end of the heat pipe 43 moves above the die base 10. At this time, the output end of the hydraulic cylinder 41 rises and then jacks up the linkage mechanism 20 on the die base 10. After the linkage mechanism 20 is jacked up, the guide wheel 30 thereon is at the same level as the heat pipe 43. Then the linkage mechanism 20 drives the guide wheel 30 to move horizontally, so that the heat pipe 43 is embedded into the annular guide groove 31 of the guide wheel 30. Then the bending mechanism 42 of the bending machine trends the heat pipe 43 to rotate around the guide wheel 30 to bend the heat pipe 43. After the heat pipe 43 is bent at this place, the linkage mechanism 20 at this place drives the guide wheel 30 to move horizontally, so that the guide wheel 30 moves away from the heat pipe 43. Then the output end of the hydraulic cylinder 41 moves downward, and the linkage mechanism 20 moves downward.
[0052] When it is necessary to bend the next part of the heat pipe 43 and the bending radius at this place changes, the die holder 10 can be driven to slide, and another corresponding linkage mechanism 20 moves above the hydraulic cylinder 41. The linkage mechanism 20 is lifted by the hydraulic cylinder 41, and then the guide wheel 30 on the linkage mechanism 20 moves horizontally, so that the heat pipe 43 is embedded in this guide wheel 30. By replacing different guide wheels 30, different bending radii can be formed when the heat pipe 43 is bent.
[0053] In summary, through the sliding of the die holder 10, the linkage mechanism 20 drives the guide wheel 30 to move vertically and horizontally, thereby completing the switching of the guide wheel 30 and realizing the forming of different bending radii of the heat pipe 43, which is relatively convenient.
[0054] In one embodiment, a plurality of first mounting holes 11 are formed in the die holder 10 side by side and vertically penetrating. An outer stopper 12 is connected to the lower end of the die holder 10 corresponding to each first mounting hole 11.
[0055] The linkage mechanism 20 includes a square mounting cylinder 21 and a support block 22.
[0056] The square mounting cylinder 21 is slidably arranged in the first mounting hole 11 in the vertical direction. The support block 22 is slidably arranged in the square mounting cylinder 21 in the horizontal direction. Grooves are formed on both sides of the support block 22, and strip-shaped protrusions are formed on both sides of the inner wall of the square mounting cylinder 21. The strip-shaped protrusions are slidably matched with the corresponding grooves. The guide wheel 30 is connected to the upper end of the support block 22. The lower end of the outer stopper 12 can limit the lower end of the square mounting cylinder 21. Specifically, after the lower end of the outer stopper 12 extends inward, it can block the lower end of the square mounting sleeve, thereby realizing the limit.
[0057] In this embodiment, the hydraulic cylinder 41 of the bending machine can lift the lower end of the square mounting cylinder 21, thereby driving the support block 22 therein and the guide wheel 30 on the support block 22 to rise. The support block 22 can slide horizontally in the square mounting cylinder 21 and drive the guide wheel 30 close to the heat pipe 43.
[0058] In one embodiment, a horizontal second mounting hole 221 is formed on one side of the support block 22; a coaxial first spring 23 is arranged in the second mounting hole 221; both ends of the first spring 23 abut against the bottom of the second mounting hole 221 and the inner wall of the square mounting cylinder 21 respectively.
[0059] In this embodiment, after the support block 22 is displaced horizontally, the guide wheel 30 thereon is driven to the position of the heat pipe 43 on the side. At this time, the first spring 23 is compressed. After the processing of the heat pipe 43 is completed, the first spring 23 can be used to reset.
[0060] In one embodiment, one side of each guide wheel 30 is kept flush with one side of the support block 22 having the second mounting hole 221. Specifically, one side of the guide wheel 30, i.e., the outer peripheral wall thereof, is spatially offset from the side of the support block 22 having the second mounting hole 221. Thus, all guide wheels 30 are located at the end of the support block 22.
[0061] In this embodiment, the plurality of guide wheels 30 are all located on one side of the upper end of the support block 22 , and all the support blocks 22 move the same distance, and can transport the guide wheels 30 on themselves to one side to cooperate with the heat pipe 43 .
[0062] In one embodiment, the lower end of the outer wall of the support block 22 away from the second mounting hole 221 is provided with an inwardly inclined surface, and specifically, the inclined surface makes the lower end of the support block 22 smaller. A vertical third mounting hole 222 is formed at the lower end of the support block 22.
[0063] The linkage mechanism 20 further includes an inner plate 24 , a control member 25 , a guide column 26 and a second spring 27 .
[0064] The inner panel 24 is vertically slidably disposed in the square installation tube 21 . Specifically, the inner panel 24 is square.
[0065] The control member 25 has a lower end connected to one end of the inner panel 24 and an upper end corresponding to the inclined surface of the support block 22. Specifically, the upper end of the control member 25 is located at the lower end of the inclined surface of the support block 22.
[0066] The upper end of the guide column 26 is held in the third mounting hole 222 and is clearance-matched with the third mounting hole 222 , and the lower end of the guide column 26 is slidably disposed on the inner panel 24 .
[0067] The second spring 27 is sleeved outside the guide column 26 , and two ends of the second spring 27 are connected to the support block 22 and the inner plate 24 respectively.
[0068] The upper end of the control member 25 can be inserted between the inner wall of the square mounting tube 21 and the support block 22, and push the support block 22 to approach the inner wall of one side of the square mounting tube 21. The lower end of the square mounting tube 21 is provided with first inner stoppers 28 extending inwards on both sides; they are first used to limit the lower end of the inner plate 24. The upper end of the first mounting hole 11 is provided with a second inner stopper 13 extending inwards; the second inner stopper 13 is used to limit the upper end of the square mounting tube 21.
[0069] In this embodiment, the second spring 27 supports the support block 22. When the output end of the hydraulic cylinder 41 jacks up the inner mounting plate 24, through the second spring 27, the support block 22 and the square mounting cylinder 21 rise together until the square mounting cylinder 21 abuts against the second inner stopper 13 and is limited in position after rising. At this time, the inner mounting plate 24 rises further, and the control member 25 moves upward and abuts against the inclined surface of the support block 22, thereby driving the support block 22 to compress the first spring 23 and driving the guide wheel 30 thereon to approach the heat pipe 43. When the heat pipe 43 is processed, the output end of the hydraulic cylinder 41 on the bending machine moves downward, the inner mounting plate 24 moves downward, and after the control member 25 moves downward, the first spring 23 immediately pushes the support block 22 away, so that the guide wheel 30 moves horizontally away from the heat pipe 43. At this time, the second spring 27 can still form a certain support for the support block 22, so that the support block 22 only moves horizontally. As the inner mounting plate 24 moves further downward, the supporting force of the second spring 27 on the support block 22 is insufficient, and the support block 22 also moves downward, driving the square mounting cylinder 21 to move downward together until the inner mounting plate 24 abuts against the first inner stopper 28 and is limited in position and cannot move downward, and the lower end of the square mounting cylinder 21 abuts against the outer stopper 12 and is limited in position and cannot move downward.
[0070] In one embodiment, the inner mounting plate 24 is provided with a mounting groove 241 arranged horizontally.
[0071] The linkage mechanism 20 further includes a slider 29 and an external member 242. The slider 29 is slidably arranged in the mounting groove 241. Convex blocks are arranged on both sides of the slider 29, and sliding grooves for slidingly cooperating with the convex blocks are arranged on the inner walls of both sides of the mounting groove 241. The slider 29 is connected to the lower end of the guide post 26; the external member 242 is connected to the lower end of the inner mounting plate 24, and the lower end of the external member 242 passes through the lower end of the square mounting cylinder 21 and is suspended; the lower end of the external member 242 is used to abut against the output end of the hydraulic cylinder 41 on the bending machine.
[0072] This embodiment also provides a heat pipe bending machine, including the bending die of any one of the above. Subsequently, the bending radius of the heat pipe 43 can be changed by replacing the die.
[0073] In the description of the present invention, a large number of specific details are set forth. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and technologies have not been shown in detail so as not to obscure the understanding of this specification.
[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.
Claims
1. A bending die, characterized in that: include: Die base (10); A linkage mechanism (20) is arranged side by side on the mold base (10); as well as A plurality of guide wheels (30) of different sizes are respectively arranged on different linkage mechanisms (20), and each guide wheel (30) is provided with a circumferential annular guide groove (31); The linkage mechanism (20) can drive the guide wheel (30) to move vertically and horizontally on the mold base (10); the annular guide groove (31) is used to guide the heat pipe (43) when it rotates around the guide wheel (30).
2. A bending mold according to claim 1, characterized in that: The mold base (10) is provided with a plurality of first mounting holes (11) arranged side by side and penetrating in the vertical direction; an outer stopper (12) is connected to the lower end of the mold base (10) corresponding to each of the first mounting holes (11); The linkage mechanism (20) comprises: a square mounting cylinder (21) which is vertically slidable in the first mounting hole (11); and A support block (22) is arranged in the square mounting cylinder (21) for transverse sliding; The guide wheel (30) is connected to the upper end of the support block (22); the lower end of the outer stopper (12) can limit the lower end of the square installation cylinder (21).
3. A bending mold according to claim 2, characterized in that: A transverse second mounting hole (221) is provided on one side of the support block (22); a coaxial first spring (23) is provided in the second mounting hole (221); two ends of the first spring (23) respectively abut against the bottom of the second mounting hole (221) and the inner wall of the square mounting tube (21).
4. A bending die as claimed in claim 3, characterized in that: One side of each guide wheel (30) is kept flush with a side surface of the support block (22) on which the second mounting hole (221) is formed.
5. A bending die as claimed in claim 4, characterized in that: A slope inclined inwards is provided at the lower end of the outer wall of the support block (22) on one side away from the second mounting hole (221); a third mounting hole (222) is provided at the lower end of the support block (22); The linkage mechanism (20) further comprises: An inner plate (24) is vertically slidably disposed in the square mounting tube (21); A control member (25), the lower end of which is connected to one end of the inner panel (24), and the upper end of which corresponds to the inclined surface of the support block (22); A guide column (26), the upper end of which is retained in the third mounting hole (222) and is clearance-matched with the third mounting hole (222), and the lower end of which is slidably disposed on the inner panel (24); and A second spring (27) is sleeved outside the guide column (26), and two ends of the second spring are respectively connected to the support block (22) and the inner plate (24); The upper end of the control member (25) can be inserted between the inner wall of the square mounting tube (21) and the support block (22), and push the support block (22) to approach the inner wall of one side of the square mounting tube (21); first inner stoppers (28) extending inwards are provided on both sides of the lower end portion of the square mounting tube (21); the first inner stopper (28) is used to limit the lower end of the inner panel (24); the upper end portion of the first mounting hole (11) is provided with a second inner stopper (13) extending inwards; the second inner stopper (13) is used to limit the upper end of the square mounting tube (21).
6. A bending die as claimed in claim 5, characterized in that: The inner panel (24) is provided with a mounting groove (241) arranged in a transverse direction; The linkage mechanism (20) further comprises a slider (29) and an external component (242); the slider (29) is slidably arranged in the mounting groove (241); the slider (29) is connected to the lower end of the guide column (26); the external component (242) is connected to the lower end of the inner plate (24), and the lower end of the external component (242) passes through the lower end of the square mounting tube (21) and is suspended in the air; the lower end of the external component (242) is used to abut against the output end of the hydraulic cylinder (41) on the bending machine.
7. A heat pipe bending machine, characterized in that: It comprises a bending die as described in any one of claims 1 to 6.