Heat pipe bending device

Abstract

The utility model relates to the technical field of heat pipe machining, and solves the problem that an existing bending machine is not easy to adapt to the clamping strength of heat pipes with different diameters in the bending process. In particular to a heat pipe bending device which comprises a supporting base, a steering bending device used for bending a heat pipe is arranged on the supporting base, and positioning devices used for assisting the steering bending device to generate positioning and clamping effects are arranged on the bent moving paths of the heat pipe respectively. The end, away from the steering and bending device, of the positioning device is provided with a pipe outlet detection device, and the steering and bending device comprises a steering device which is installed on the supporting base and moves front and back, and a jacking head which is opposite to the steering device and used for jacking a heat pipe in the bending stage into the steering device. The positioning device comprises a positioning plate installed on the supporting base, a material passing groove is formed in the positioning plate, and a pushing plate matched with the side wall of the steering device is arranged at the opposite end of the positioning plate.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipe processing, in particular to a heat pipe bending device. Background Art

[0002] Existing bending machines are not easy to adapt to heat pipes of different diameters. When bending the heat pipe, if a single distance adjustment is performed using a slot opened on a single clamping plate, the radial force on the heat pipe will increase, causing the heat pipe to be subjected to uneven force, which may cause bending deformation or local breakage, or even microcracks, thereby affecting the structural stability and durability of the heat pipe. However, if the clamping diameter is not adjusted, the clamping force will be too small, and the normal bending operation cannot be completed. The deformation of the heat pipe structure will cause the pipeline spacing to become smaller or uneven, which will reduce the heat transfer performance of the heat pipe, and may cause hot spots at the bends of the heat pipe, affecting the uniformity of heat transfer of the heat pipe. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a heat pipe bending device, which solves the problem that the existing bending machine is not easy to adapt to the clamping strength of heat pipes with different diameters during the bending process.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat pipe bending device, comprising a support base, a steering bending device for bending the heat pipe is arranged on the support base, and positioning devices are respectively arranged on the action path of the heat pipe to assist the steering bending device in producing a positioning and clamping effect, and a pipe outlet detection device is arranged at one end of the positioning device away from the steering bending device;

[0005] The steering and bending device includes a steering device installed on the support base and moving forward and backward, and a tightening head opposite to the steering device for pressing the heat pipe in the bending stage against the steering device;

[0006] The positioning device comprises a positioning plate installed on a supporting base, a material passing groove is provided on the positioning plate, and a push plate adapted to the side wall of the steering device is arranged at the opposite end of the positioning plate.

[0007] In a specific embodiment, the steering device includes a support plate installed on a support base, a rolling bearing for satisfying the rotation angle of the support plate is arranged between the support plate and the support base, a bending block is connected to the upper end of the support plate by arranging a sliding member, a bending groove 1 and a bending groove 2 are arranged inside the bending block, a top plate connected to the support base is arranged at the upper end of the bending block, and the top plate and the bending block are rotatably connected;

[0008] The diameter of the first bending groove is greater than the diameter of the second bending groove.

[0009] In a specific embodiment, the tightening head is installed at the front end of the bending block and is provided with a tightening plate on the support plate. The tightening plate is symmetrically provided with two sets of centering columns, and a centering groove adapted to the centering column is opened on the bending block. A through groove is provided on the tightening plate, and a flexible tightening column is filled in the through groove. The front end of the flexible tightening column is subjected to force to generate a backward movement, and the two side walls of the bending groove are connected.

[0010] In a specific embodiment, the pipe outlet detection device includes a material guide cylinder installed on the upper end of the support base through a support rod, and a plurality of material guide wheel groups are installed in the material guide cylinder for detecting the straightness of the heat pipe body to be processed and transporting the heat pipe in the processing direction, and an output sleeve of the output heat pipe is installed at the left end of the material guide cylinder.

[0011] In a specific implementation, the bending block is arranged in a polygonal shape, and the push plate is connected to the side wall of the bending block.

[0012] In a specific embodiment, the guide wheel material group includes two guide wheels symmetrically arranged front and back, the two guide wheels relatively form a tube passage, the heat pipe passes through the tube passage, and a flexible rubber layer is arranged in the tube passage.

[0013] Compared with the prior art, the utility model provides a heat pipe bending device, which has the following beneficial effects:

[0014] In the technical solution disclosed by the utility model, a steering device is used to adapt to different processed heat pipes including bending grooves 1 and 2 of different diameters, and a flexible column is combined to adapt the bending groove 1 or the bending groove 2 to the top, so as to achieve a clamping effect, limit the movement of the heat pipe in the bending groove 1 or the bending groove 2, and thus achieve the top tightening adjustment of heat pipes of different diameters.

[0015] By means of the guide wheel material group provided in the utility model, a flexible rubber layer is provided in the tube passage, on the one hand, the friction between the tube passage and the surface of the heat pipe is enhanced under the driving force of the expansion force of the flexible rubber layer, and on the other hand, when the heat pipe is driven to move in a single direction on the same horizontal plane by using a plurality of guide wheels, the heat pipe can maintain the state of initially entering the tube passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the outlet pipe detection device of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the steering device of the utility model when it is in a bent state;

[0020] Figure 4 It is a schematic diagram of the axonometric structure of the overall structure of the utility model.

[0021] In the figure: 1. support base; 2. steering and bending device; 21. steering device; 211. support plate; 212. bending block; 213. bending groove one; 214. bending groove two; 215. top plate; 22. tightening head; 221. tightening plate; 222. centering column; 223. tightening column; 3. positioning device; 31. positioning plate; 32. material trough; 33. push plate; 4. pipe outlet detection device; 41. material guide barrel; 42. material guide wheel group; 421. guide wheel; 422. flexible rubber layer; 43. output sleeve. DETAILED DESCRIPTION

[0022] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] The existing bending machines are not easy to adapt to the clamping strength of heat pipes with different diameters during the bending process. The utility model discloses a heat pipe bending device. Figure 1-Figure 4As shown, it is provided with a support base 1, on which a turning and bending device 2 for bending the heat pipe is provided, and positioning devices 3 are respectively provided on the path of the heat pipe to be bent to assist the turning and bending device 2 in producing a positioning and clamping effect, and a pipe outlet detection device 4 is provided at one end of the positioning device 3 away from the turning and bending device 2. First, the pipe outlet detection device 4 is used to detect the straightness of the heat pipe to be bent, so as to reduce the situation that the heat pipe with an arc is processed as a straight heat pipe, causing the heat pipe to be damaged or broken during processing. Then, the positioning device 3 provides a supporting force for the heat pipe before entering the turning and bending device 2, so that it can maintain movement on the same horizontal plane to avoid deviation. Finally, after entering the turning and bending device 2, the bending groove 1 213 and the bending groove 2 214 with different diameters are adapted, and the bending groove 1 213 or the bending groove 214 is tightened in combination with the tightening head 22 to limit the movement of the heat pipe in the bending groove 1 213 or the bending groove 214, thereby achieving tightening adjustment of heat pipes with different diameters.

[0025] The steering and bending device 2 includes a steering device 21 installed on the support base 1 and moving forward and backward, and a tightening head 22 for pressing the heat pipe in the bending stage into the steering device 21, which is opposite to the steering device 21. The tightening head 22 squeezes its own structure into the bending groove 1 213 or the bending groove 214 to achieve tightening. The steering device 21 includes a support plate 211 installed on the support base 1. A rolling bearing is arranged between the support plate 211 and the support base 1 to meet the rotation angle of the support plate 211. The clamping head 22 is installed on the support plate 211 so as to rotate synchronously with the steering device 21 as a whole. The upper end of the support plate 211 is connected to a bending block 212 by setting a sliding member. The sliding member is specifically a screw rod. The free end of the screw rod is connected to the bending block 212 to drive it to move forward and backward. The bending block 212 is arranged in a polygonal shape. A bending groove 1 213 and a bending groove 214 are opened inside the bending block 212. The diameter of the bending groove 1 213 is larger than the diameter of the bending groove 214. Figure 1 As shown, when the diameter of the heat pipe is adapted to the bending groove 213, it is directly clamped in the bending groove 213, and the driving motor is used to drive the bending block 212 to move. The driving motor is installed on the top plate through a horizontal slide rail, and the horizontal slide rail is used to ensure the synchronous movement of the driving motor and the bending block 212. A top plate 215 connected to the support base 1 is provided at the upper end of the bending block 212, and a driving motor installed on the top plate 215 is provided between the top plate 215 and the bending block 212 to drive the bending block 212 to rotate.

[0026] The tightening head 22 is installed at the front end of the bending block 212 and is provided with a tightening plate 221 on the support plate 211. The tightening plate 221 is symmetrically provided with two sets of centering columns 222. A centering groove adapted to the centering column 222 is opened on the bending block 212. A through groove is provided on the tightening plate 221, and a flexible tightening column 223 is filled in the through groove. The front end of the flexible tightening column 223 is subjected to force to produce a backward movement and is connected to the side wall of the bending groove 214. The flexible tightening column 223 is installed on the tightening plate 221 in a strip shape, and is moved in the front and rear directions by installing a cylinder on the tightening plate 221. When the heat When the tube diameter is adapted to the second bending groove 214, first, the bending block 212 will move toward the direction close to the tightening plate 221 under the action of the sliding member, and the rear cylinder will move the tightening column 223 toward the bending block 212. In the process of gradually fitting the heat pipe, the tightening column 223 is gradually squeezed until it is squeezed to its maximum compression amount. At this time, the pushing head pushes the heat pipe in the second bending groove 214 to the maximum force state, that is, the purpose of clamping heat pipes of different diameters is achieved. Therefore, based on the tightening method disclosed in the utility model, it is inspiring to open bending grooves of different diameters on the bending block 212.

[0027] The positioning device 3 includes a positioning plate 31 mounted on the support base 1, a material passing groove 32 is provided on the positioning plate 31, and a push plate 33 adapted to the side wall of the steering device 21 is provided at the opposite end of the positioning plate 31. Therefore, after the bending block 212 is driven by the driving force and rotates, the push plate 33 can push the heat pipe stuck on the bending groove 1 213 or the bending groove 214 of the bending block 212 to avoid the bending failure caused by the movement of the bending block 212.

[0028] In order to reduce the problem that the heat pipes with curvature are processed as straight heat pipes, causing the heat pipes to be damaged or broken during processing. A pipe outlet detection device 4 is specifically set up, which is provided with a guide barrel 41 installed on the upper end of the support base 1 through a support rod. A plurality of guide wheel groups 42 for detecting the straightness of the heat pipe body to be processed and conveying the heat pipe in the processing direction are installed in the guide barrel 41. An output sleeve 43 for outputting the heat pipe is installed on the left end of the guide barrel 41. The output sleeve 43 supports the heat pipe output from the guide wheel group 42 to enhance its support strength during the processing movement. The guide wheel group 42 includes two guide wheels 421 symmetrically arranged front and back, and the drive of the guide wheel 421 is the existing technology. In this embodiment, a synchronous wheel is specifically installed on the upper end of the guide wheel 421, and the synchronous wheels are connected by belts, and a driving motor installed in the guide barrel 41 is coaxially connected to one of the synchronous wheels, thereby forming a synchronous drive of several guide wheels 421. In this embodiment, the guide wheel 421 is specifically a U-shaped groove wheel. Two guide wheels 421 relatively form a tube passage. The heat pipe passes through the tube passage. A flexible rubber layer 422 is provided in the tube passage. A pressure sensor is additionally provided between the flexible rubber layer 422 and the guide wheel 421. Considering the cost, the pressure sensor provided in this embodiment is specifically provided at the left and right ports and the center position of the guide tube. The provision of the flexible rubber layer 422 makes the diameter of the tube passage in the initial state smaller than the preset diameter of the heat pipe passing through. On the one hand, the friction between the tube passage and the surface of the heat pipe is enhanced under the drive of the expansion force of the flexible rubber layer 422. On the other hand, when the heat pipe is driven to move in a single direction on the same horizontal plane by using a plurality of guide wheel groups 42, the heat pipe can maintain the state of initially entering the tube passage. For example, it is not located at the center of the tube passage, but is biased toward the front end or the rear end, and its pushing force on the unilateral flexible rubber layer 422 is maintained at the same value. When the unilateral value suddenly increases or decreases, it can be preliminarily determined that the straightness of this heat pipe needs to be confirmed. At this time, the guide wheel 421 is driven to rotate in the opposite direction, causing the tube to separate from the material guide barrel 41, thereby achieving the purpose of detecting the heat pipe to be processed.

[0029] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat pipe bending device, comprising a support base (1), characterized in that: The support base (1) is provided with a turning and bending device (2) for bending the heat pipe, and positioning devices (3) are respectively provided on the movement path of the heat pipe to be bent to assist the turning and bending device (2) in producing a positioning and clamping effect, and a pipe outlet detection device (4) is provided at one end of the positioning device (3) away from the turning and bending device (2); The steering and bending device (2) comprises a steering device (21) installed on the supporting base (1) and moving forward and backward, and a pressing head (22) opposite to the steering device (21) and used for pressing the heat pipe into the steering device (21) during the bending stage; The positioning device (3) comprises a positioning plate (31) mounted on the support base (1), a material passing groove (32) is provided on the positioning plate (31), and a push plate (33) adapted to the side wall of the steering device (21) is provided at the opposite end of the positioning plate (31).

2. A heat pipe bending device according to claim 1, characterized in that: The steering device (21) comprises a support plate (211) mounted on a support base (1); a rolling bearing for satisfying the rotation angle of the support plate (211) is arranged between the support plate (211) and the support base (1); the upper end of the support plate (211) is connected to a bending block (212) by means of a sliding member; a bending groove 1 (213) and a bending groove 2 (214) are provided inside the bending block (212); a top plate (215) connected to the support base (1) is arranged at the upper end of the bending block (212); and the top plate (215) and the bending block (212) are rotatably connected; The diameter of the bending groove one (213) is greater than the diameter of the bending groove two (214).

3. A heat pipe bending device according to claim 1, characterized in that: The tightening head (22) is mounted on the front end of the bending block (212) and is provided with a tightening plate (221) on the support plate (211); the tightening plate (221) is provided with two groups of centering columns (222) symmetrically protruding from top to bottom; a centering groove adapted to the centering column (222) is provided on the bending block (212); a through groove is provided on the tightening plate (221); a flexible tightening column (223) is filled in the through groove; the front end of the flexible tightening column (223) is subjected to force to generate a backward movement and is connected to the second side wall of the bending groove (214).

4. A heat pipe bending device according to claim 1, characterized in that: The pipe outlet detection device (4) comprises a material guide cylinder (41) mounted on the upper end of the support base (1) via a support rod, a plurality of material guide wheel groups (42) for detecting the straightness of the heat pipe body to be processed and conveying the heat pipe in the processing direction are installed in the material guide cylinder (41), and an output sleeve (43) for outputting the heat pipe is installed at the left end of the material guide cylinder (41).

5. The heat pipe bending device according to claim 3, characterized in that: The bending block (212) is arranged in a polygonal shape, and the pushing plate (33) is connected to the side wall of the bending block (212) to form a tight state.

6. A heat pipe bending device according to claim 4, characterized in that: The guide wheel group (42) comprises two guide wheels (421) symmetrically arranged front and rear, the two guide wheels (421) relatively forming a tube passage, the heat pipe passes through the tube passage, and a flexible rubber layer (422) is arranged in the tube passage.

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