Automatic heat pipe bending device

Abstract

The utility model relates to heat pipe processing technical field discloses a kind of automatic pipe bending device of heat pipe, including coaxially arranged first bending part, second bending part on operation platform, fixed shaft, first bending part, second bending part are all installed with bending disc, and the circumferential wall of support disc, bending disc is provided with the semicircular annular groove matching heat pipe. The utility model is through the semicircular annular groove of support disc, bending disc side wall setting, so that bending disc is revolved around support disc and is bent to heat pipe, heat pipe wall surface is evenly stressed, prevent the problem that heat pipe appears flat or stress point concentration leads to local depression;By setting drive unit, using the function of deceleration and torque increase, so that motor can be more accurate control sliding frame's moving precision, i.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe processing technology, specifically, to an automatic heat pipe bending device. Background Technology

[0002] A heat pipe (also known as a heat transfer pipe) is a highly efficient heat transfer device widely used in electronic equipment, aerospace, computer cooling, and refrigeration systems. Its principle is based on the phase change process of liquid evaporation and condensation, enabling efficient heat transfer even with a small temperature difference. With technological advancements, the application of heat pipes in various fields is gradually increasing, especially in electronic equipment requiring efficient heat dissipation, where they play a crucial role. Initially, heat pipes are typically straight. Then, according to specific application requirements, they are bent into the desired shape. One commonly used type is the "U-tube," which involves bending a straight heat pipe into a U-shape with a specific bending radius.

[0003] Current heat pipe bending equipment often results in problems such as flattening or localized dents and deformations after bending due to the small contact area between the equipment and the heat pipe and insufficient support. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic heat pipe bending device to solve the problem that heat pipes are prone to flattening or local denting and deformation after processing by existing bending equipment.

[0005] This utility model is achieved through the following technical solution: an automatic heat pipe bending device, comprising a first bending component, a second bending component, and a fixed shaft coaxially arranged on an operating table. The first bending component is rotatably connected to the fixed shaft, and the second bending component is rotatably connected to the first bending component. A support plate is installed at one end of the fixed shaft, and the other end is connected to the operating table. Bending plates are installed on both the first and second bending components. Semi-circular annular grooves matching the heat pipe are provided on the circumferential walls of the support plate and the bending plate.

[0006] To better realize this utility model, it further includes a control unit, which includes a sliding frame, a first gear, and a second gear. The first gear is mounted on the second bent member, and the second gear is mounted on the first bent member. The sliding frame is provided with a first rack and a second rack. The first rack meshes with the first gear, and the second rack meshes with the second gear. The sliding frame is slidably connected to the operating table.

[0007] To better realize this utility model, it further includes a drive unit, which includes a motor, a worm gear, a turbine, and a lead screw. The lead screw is mounted on the sliding frame, the turbine is rotatably connected to the operating table and threadedly connected to the lead screw, the motor is mounted on the operating table, and the worm gear is installed at its output end, with the worm gear meshing with the turbine.

[0008] To better realize this utility model, the support plate is detachably connected to the fixed shaft, a first slider is slidably connected to the first bending member, the bending plate is detachably connected to the first slider, a first adjusting bolt is threadedly connected to the first bending member, and the first adjusting bolt is rotatably connected to the first slider; a second slider is slidably connected to the second bending member, the bending plate is detachably connected to the motor, a second adjusting bolt is threadedly connected to the second bending member, and the second adjusting bolt is rotatably connected to the second slider.

[0009] To better realize this utility model, a limiting unit is further provided on the operating table to limit the heat pipe so that the actual bending position of the heat pipe coincides with the preset bending position.

[0010] To better realize this utility model, the limiting unit further includes a limiting plate, a locking bolt, and a sliding positioning box. The sliding positioning box is installed on the operating table, and the limiting plate is slidably connected to the sliding positioning box and is located at the axis of the heat pipe. The sliding positioning box is provided with a slot, and the locking bolt passes through the slot and is threadedly connected to the limiting plate.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects: (1) The present invention uses a semi-circular annular groove on the side wall of the support plate and the bending plate to make the heat pipe wall surface uniformly stressed when the bending plate revolves around the support plate to bend the heat pipe, thus preventing the heat pipe from becoming flat or the stress point from being concentrated, resulting in local depression. (2) By setting up a control unit, this utility model realizes the function of dividing a single power input into two opposite power outputs, reducing the setting of power sources, reducing investment costs, and simplifying the overall layout; (3) By setting up a drive unit, this utility model utilizes the deceleration and torque increase function to enable the motor to control the movement accuracy of the sliding frame more precisely, that is, to improve the bending accuracy of the bending disc on the heat pipe; at the same time, the cooperation between the worm and the turbine and the cooperation between the turbine and the lead screw can achieve the self-locking function. (4) This utility model enables the bending of heat pipes with different diameters and bending radii, and has a wider range of applications; (5) The present invention is equipped with a limiting unit, which can easily make the actual bending position of the heat pipe coincide with the preset bending position. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model from the right view angle.

[0014] Figure 3 This is a schematic diagram of the control unit and drive unit structure.

[0015] Figure 4 This is a schematic diagram of the control unit structure.

[0016] Figure 5 This is a schematic diagram of the first and second bent components.

[0017] Figure 6 This is a schematic diagram of the first bending component and the first slider structure.

[0018] Wherein: 20-Heat pipe; 101-Operating table; 102-Support plate; 103-Limiting plate; 104-Locking bolt; 105-Sliding positioning box; 106-Bending plate; 107-First bending component; 108-Second bending component; 109-Motor; 110-Worm gear; 111-Turbine; 112-Lead screw; 113-Sliding frame; 114-First rack; 115-Second rack; 116-First gear; 117-Second gear; 118-Fixed shaft; 119-Second slider; 120-Second adjusting bolt; 121-First adjusting bolt; 122-First slider. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1:

[0021] This embodiment provides an automatic heat pipe bending device, specifically as follows: Figure 1 , Figure 2 As shown, the device includes a first bending member 107, a second bending member 108, and a fixed shaft 118 coaxially mounted on the operating table 101. The first bending member 107 is rotatably connected to the fixed shaft 118, and the second bending member 108 is rotatably connected to the first bending member 107. A support plate 102 is mounted on one end of the fixed shaft 118, and the other end is connected to the operating table 101. Bending plates 106 are mounted on both the first bending member 107 and the second bending member 108. Semi-circular annular grooves matching the heat pipe 20 are provided on the circumferential walls of the support plate 102 and the bending plate 106.

[0022] In the initial state (e.g.) Figure 1 The heat pipe 20 is passed through the gap between the support plate 102 and the bending plate 106. This gap only allows heat pipes of the corresponding size to pass through. Then, the heat pipe 20 is limited by the two bending plates 106 and the semi-circular groove on the support plate 102. At this time, the first bending member 107 and the second bending member 108 are rotated in different directions, so that the two bending plates 106 revolve around the support plate 102. The bending plates 106 will drive the heat pipe 20 and make the heat pipe 20 begin to bend until the two bending plates 106 and the support plate 102 are in a straight line. At this time, the heat pipe 20 is bent into a U-shape, and the bending radius is the radius of the support plate 102. Then, the first bending member 107 and the second bending member 108 are rotated in opposite directions to reset. The worker removes the bent heat pipe 20 to complete one processing cycle. This process can be repeated.

[0023] The semi-circular annular grooves provided on the side walls of the support plate 102 and the bending plate 106 ensure that the heat pipe 20 is subjected to uniform force when the bending plate 106 revolves around the support plate 102 to bend the heat pipe 20, thus preventing the heat pipe 20 from becoming flat or the stress points from concentrating and causing local depressions. Example 2:

[0024] This embodiment further extends the above embodiment, specifically as follows: Figures 2-4As shown, it also includes a control unit, which includes a sliding frame 113, a first gear 116, and a second gear 117. The first gear 116 is mounted on the second bent member 108, and the second gear 117 is mounted on the first bent member 107. The sliding frame 113 is provided with a first rack 114 and a second rack 115. The first rack 114 meshes with the first gear 116, and the second rack 115 meshes with the second gear 117. The sliding frame 113 is slidably connected to the operating table 101.

[0025] By driving the sliding frame 113, the first rack 114 and the second rack 115 drive the first gear 116 and the second gear 117 to rotate in opposite directions, thereby realizing the opposite rotation of the first bent part 107 and the second bent part 108. By setting the sliding frame 113, the function of dividing a single power input into two opposite power outputs is realized, reducing the setting of power sources, reducing investment costs, and simplifying the overall layout.

[0026] Furthermore, it also includes a drive unit, which includes a motor 109, a worm gear 110, a turbine 111, and a lead screw 112. The lead screw 112 is mounted on the sliding frame 113. The turbine 111 is rotatably connected to the operating table 101 and threadedly connected to the lead screw 112. The motor 109 is mounted on the operating table 101, and the worm gear 110 is mounted on its output end. The worm gear 110 meshes with the turbine 111.

[0027] When the motor 109 starts, it drives the worm gear 110 to rotate. The worm gear 110 drives the turbine 111. Since the turbine 111 rotates and the lead screw 112 is fixed on the sliding frame 113, the turbine 111 can only drive the lead screw 112 to move the sliding frame 113 laterally. By changing the rotation direction of the motor 109, the reciprocating movement of the sliding frame 113 is realized.

[0028] The worm gear 110 and worm wheel 111 drive reduce speed and increase torque; the threaded drive between the worm wheel 111 and the lead screw 112 further reduces speed and increases torque, enabling the motor 109 to more precisely control the movement accuracy of the sliding frame 113, thereby improving the bending accuracy of the bending disc 106 on the heat pipe 20. Simultaneously, the cooperation between the worm gear 110 and the worm wheel 111, as well as the cooperation between the worm wheel 111 and the lead screw 112, both achieve a self-locking function.

[0029] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again. Example 3:

[0030] This embodiment further extends the above embodiment, specifically as follows: Figures 3-6As shown, the support plate 102 is detachably connected to the fixed shaft 118. In this embodiment, the "detachable connection" adopts a threaded connection. The first slider 122 is slidably connected to the first bending member 107, and the bending plate 106 is detachably connected to the first slider 122. The first adjusting bolt 121 is threadedly connected to the first bending member 107, and the first adjusting bolt 121 is rotatably connected to the first slider 122. The second slider 119 is slidably connected to the second bending member 108, and the bending plate 106 is detachably connected to the motor 109. The second adjusting bolt 120 is threadedly connected to the second bending member 108, and the second adjusting bolt 120 is rotatably connected to the second slider 119.

[0031] When it is necessary to bend the heat pipe 20 with different diameters, the support plate 102 and bending plate 106 can be disassembled and replaced with those having the corresponding semi-circular annular groove specifications; similarly, when it is necessary to change the bending radius of the heat pipe 20, the support plate 102 with the corresponding diameter also needs to be replaced.

[0032] After the support plate 102 and / or the bending plate 106 are replaced, the second adjusting bolt 120 and the first adjusting bolt 121 need to be turned to make the second slider 119 and the first slider 122 slide, thereby adjusting the initial position of the two bending plates 106 until the gap between the bending plate 106 and the second adjusting bolt 120 can only pass through the heat pipe 20.

[0033] The above-mentioned configuration enables this device to bend heat pipes 20 with different diameters and bending radii, thus expanding its applicability.

[0034] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again. Example 4:

[0035] This embodiment further extends the above embodiment, specifically as follows: Figure 1 As shown, the operating table 101 is provided with a limiting unit for limiting the heat pipe 20 so that the actual bending position of the heat pipe 20 coincides with the preset bending position.

[0036] The limiting unit includes a limiting plate 103, a locking bolt 104, and a sliding positioning box 105. The sliding positioning box 105 is installed on the operating table 101. The limiting plate 103 is slidably connected to the sliding positioning box 105 and is located at the axis of the heat pipe 20. The sliding positioning box 105 is provided with a slot, and the locking bolt 104 passes through the slot and is threadedly connected to the limiting plate 103.

[0037] Before processing, the position of the limiting plate 103 is adjusted according to the length of the heat pipe 20 in this batch of processing, so that after the heat pipe 20 is inserted into the gap between the support plate 102 and the bending plate 106 and contacts the limiting plate 103, the originally expected bending position is exactly at the midpoint of the two bending plates 106. At this time, when the bending plate 106 moves, the actual bending position is the expected bending position.

[0038] The position adjustment of the limiting plate 103 is as follows: First, loosen the locking bolt 104 so that the locking bolt 104 does not press against the sliding positioning box 105. At this time, the limiting plate 103 can slide freely. The sliding positioning box 105 is provided with scale lines. The operator accurately positions the limiting plate 103 according to the scale lines. When the limiting plate 103 moves to a certain scale, tighten the locking bolt 104. At this time, the locking bolt 104 presses on the sliding positioning box 105, and the squeezing force makes the limiting plate 103 and the sliding positioning box 105 relatively fixed.

[0039] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An automatic heat pipe bending device, characterized in that, The device includes a first bending component (107), a second bending component (108), and a fixed shaft (118) coaxially mounted on the operating table (101). The first bending component (107) is rotatably connected to the fixed shaft (118), and the second bending component (108) is rotatably connected to the first bending component (107). One end of the fixed shaft (118) is equipped with a support plate (102), and the other end is connected to the operating table (101). Both the first bending component (107) and the second bending component (108) are equipped with bending plates (106). The circumferential walls of the support plate (102) and the bending plate (106) are provided with semi-circular annular grooves that match the heat pipe (20).

2. The automatic heat pipe bending device according to claim 1, characterized in that: It also includes a control unit, which includes a sliding frame (113), a first gear (116), and a second gear (117). The first gear (116) is mounted on the second bent part (108), and the second gear (117) is mounted on the first bent part (107). The sliding frame (113) is provided with a first rack (114) and a second rack (115). The first rack (114) meshes with the first gear (116), and the second rack (115) meshes with the second gear (117). The sliding frame (113) is slidably connected to the operating table (101).

3. The automatic heat pipe bending device according to claim 2, characterized in that: It also includes a drive unit, which includes a motor (109), a worm (110), a turbine (111), and a lead screw (112). The lead screw (112) is mounted on the sliding frame (113). The turbine (111) is rotatably connected to the operating table (101) and threadedly connected to the lead screw (112). The motor (109) is mounted on the operating table (101), and the worm (110) is mounted on its output end. The worm (110) meshes with the turbine (111).

4. The automatic heat pipe bending device according to claim 3, characterized in that: The support plate (102) is detachably connected to the fixed shaft (118). The first bending member (107) is slidably connected to the first slider (122). The bending plate (106) is detachably connected to the first slider (122). The first bending member (107) is threadedly connected to the first adjusting bolt (121). The first adjusting bolt (121) is rotatably connected to the first slider (122). The second bending member (108) is slidably connected to the second slider (119). The bending plate (106) is detachably connected to the motor (109). The second bending member (108) is threadedly connected to the second adjusting bolt (120). The second adjusting bolt (120) is rotatably connected to the second slider (119).

5. An automatic heat pipe bending device according to any one of claims 1-4, characterized in that: The operating table (101) is provided with a limiting unit for limiting the heat pipe (20) so that the actual bending position of the heat pipe (20) coincides with the preset bending position.

6. The automatic heat pipe bending device according to claim 5, characterized in that: The limiting unit includes a limiting plate (103), a locking bolt (104), and a sliding positioning box (105). The sliding positioning box (105) is installed on the operating table (101). The limiting plate (103) is slidably connected to the sliding positioning box (105) and is located at the axis of the heat pipe (20). The sliding positioning box (105) is provided with a slot, and the locking bolt (104) passes through the slot and is threadedly connected to the limiting plate (103).

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