Automatic vacuuming device for heat pipes

Abstract

The application relates to an automatic heat pipe vacuumizing equipment and relates to the technical field of heat pipe vacuumizing treatment. The equipment comprises a protective shell fixed on a machine table through a bolted frame structure, an upper feeding device, a carrying device, a drying device, a positioning device and a vacuum device are arranged in the protective shell; the drying device comprises a drying mechanism capable of adjusting a blowing distance and a detection mechanism provided with a detachable wrapping layer detection head; the positioning device drives a positioning plate to position through a positioning cylinder; the vacuum device is matched with a vacuum pump through an elastic clamping jaw structure; an upper feeding frame is provided with an inclined slope and a top rod; the carrying device is composed of a horizontal and vertical carrying mechanical hand and a feeding mechanism to complete heat pipe carrying and the like. The application realizes automatic heat pipe vacuumizing treatment, improves production efficiency and quality, and ensures the stable and reliable technical effect of heat pipe performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat pipe vacuumizing processing, in particular to a heat pipe automatic vacuumizing equipment. BACKGROUND

[0002] As a high-efficiency heat transfer element, the internal vacuum degree of the heat pipe is the core index to determine the heat transfer performance, and the stability and consistency of the vacuum degree of the heat pipe are extremely high in the fields of electronic equipment heat dissipation, new energy vehicle thermal management, aerospace thermal control, etc. In the existing heat pipe vacuumizing production, the following problems exist.

[0003] Incomplete drying treatment: the heat pipe is usually made of copper pipe material, and water droplets are easily condensed on the inner wall due to changes in temperature and humidity in the air, especially for the heat pipe with one closed end and one open end, the internal moisture is difficult to evaporate naturally. The existing drying equipment is mostly fixed distance hot air drying, which cannot adjust the blowing distance according to the length of the heat pipe (commonly 60-300mm), resulting in overheating of short heat pipes and insufficient drying of long heat pipes. The residual moisture will affect the accuracy of vacuum degree detection during vacuumizing, and even form steam to pollute the vacuum pump.

[0004] Safety hazards: some heat pipes have processing defects such as leakage holes at the closed end, and the drying hot air will be sprayed out of the leakage holes, and the high-temperature airflow (usually 80-120℃) is easy to cause burns to the operator. The existing equipment lacks targeted protection and detection mechanism. SUMMARY

[0005] In order to solve the above problems, the present application provides a heat pipe automatic vacuumizing equipment.

[0006] A heat pipe automatic vacuumizing equipment, comprising a machine table, a protective shell is fixed on the machine table by bolts, the protective shell is a frame structure, an upper feeding device, a carrying device, a drying device, a positioning device and a vacuum device are integrally arranged in the protective shell;

[0007] The drying device comprises a drying mechanism, the drying mechanism comprises a hot air blowing head and an adjusting cylinder, the driving shaft of the adjusting cylinder is fixedly connected with the hot air blowing head to adjust the blowing distance, and a blowing hole is formed in the hot air blowing head;

[0008] The drying device further comprises a detection mechanism, the detection mechanism comprises a detection head oppositely arranged in the air outlet direction of the hot air blowing head, the detection head is wrapped with a wrapping layer, and the wrapping layer is detachably connected with the detection head;

[0009] The detection head comprises a mounting plate, a first circular ring and a second circular ring, the mounting plate, the first circular ring and the second circular ring are coaxially fixedly connected through a plurality of uniformly distributed connecting rods, the first circular ring and the second circular ring are respectively provided with a first filter plate and a second filter plate, and the pore size of the first filter plate is larger than that of the second filter plate;

[0010] The detection head is driven by an electric push rod, and the mounting plate is fixedly connected to the end of the drive rod of the electric push rod. The detection element is fixed on the mounting plate.

[0011] By adopting the above technical solution, the adjustable cylinder can drive the hot air blower to flexibly adjust the distance between itself and the heat pipe, adapting to the drying needs of heat pipes of different lengths, avoiding overheating of short heat pipes or insufficient drying of heat pipes; the detection head filters impurities carried out by the hot air through the first and second filter plates and uniformly distributes the hot air flow rate, reducing interference and impact on the detection element; the removable wrapping layer is easy to replace, improving the convenience of equipment maintenance.

[0012] Preferably, the wrapping layer is made of sponge material, and the wrapping layer has a number of air vents with a diameter of 1-3mm.

[0013] By adopting the above technical solution, the sponge material wrapping layer has good elasticity and cushioning, which can avoid damage caused by direct contact between the detection head and the heat pipe; the 1-3mm vent holes can not only ensure that hot air is discharged smoothly for easy detection, but also play a certain role in buffering the airflow, making the detection element more stable and improving the detection accuracy.

[0014] Preferably, the detection element includes a conductive block, which is fixed to one side of the mounting plate near the second ring. A diaphragm is fixed on the conductive block, and strain gauges are fixed parallel to each other on both sides of the diaphragm. The strain gauges are electrically connected to the conductive block through wires, and the conductive block is connected to an external control system signal.

[0015] By adopting the above technical solution, when there is a leak in the heat pipe, hot air is blown out from the leak and acts on the diaphragm, causing the diaphragm to undergo a slight deformation. The strain gauge converts the deformation into an electrical signal, which is transmitted to the external control system through the conductive block. This enables real-time detection of heat pipe leaks, timely detection of defective heat pipes, avoids waste in subsequent processing, and prevents high-temperature air leakage from causing safety hazards.

[0016] Preferably, the drying device further includes a pressing mechanism, which includes a pressing cylinder. The output shaft of the pressing cylinder is connected to a pressing block. The pressing mechanism also includes a supporting block located directly below the pressing block. The supporting block is fixed to the machine base. The pressing block and the supporting block are provided with semi-circular grooves that form a circular hole when closed. The diameter of the circular hole is adapted to the outer diameter of the heat pipe.

[0017] By adopting the above technical solution, the pressure cylinder drives the pressure block and the support block to close, and a circular hole that matches the outer diameter of the heat pipe is formed through the semi-circular groove, which firmly clamps the heat pipe and avoids the heat pipe shaking or shifting due to the impact of hot air during the drying process. This ensures that the hot air nozzle and the end of the heat pipe are precisely aligned, and improves the stability of the drying effect.

[0018] Preferably, the positioning device includes a positioning cylinder, and a positioning plate is mounted on the drive shaft of the positioning cylinder, the movement direction of the positioning plate being perpendicular to the heat pipe conveying direction.

[0019] By adopting the above technical solution, the positioning cylinder drives the positioning plate to move along the direction perpendicular to the heat pipe conveying direction, which can quickly adjust the heat pipe to the preset position, ensuring that the heat pipe is in a uniform position when entering the drying, vacuum and other processes, providing a basis for the precise operation of subsequent devices and improving the overall processing accuracy.

[0020] Preferably, the positioning plate has two opposing push plates, each driven by an independent electric push rod, and a rubber buffer layer is attached to the push plate, with anti-slip texture on the surface of the rubber layer.

[0021] By adopting the above technical solution, the two push plates clamp the heat pipe from both sides under the drive of the electric push rod. The rubber buffer layer can avoid damage to the heat pipe caused by hard contact. At the same time, it can adapt to the positioning requirements of heat pipes with different outer diameters by using elastic deformation. The anti-slip texture increases the friction and prevents the heat pipe from sliding during the positioning process, further improving the stability and accuracy of positioning.

[0022] Preferably, the vacuum device includes several uniformly arranged clamps and vacuum sensors. The clamps adopt an elastic claw structure, and the inner wall of the claws is provided with a sealing ring. The clamps are connected to an external vacuum pump through a vacuum tube.

[0023] By adopting the above technical solutions, the flexible claw structure can adapt to heat pipes of different outer diameters, the sealing ring ensures the seal between the claw and the heat pipe, and the vacuum pump efficiently extracts air from inside the heat pipe; the vacuum sensor monitors the vacuum level in real time to ensure that the vacuum level inside the heat pipe meets the standard and ensures the stable performance of the heat pipe.

[0024] Preferably, the machine platform is further provided with a feeding frame, a discharging frame and an NG frame, and the feeding frame is provided with a slope of 30-45 degrees.

[0025] By adopting the above technical solution, the 30-45 degree slope of the feeding frame allows the heat pipe to slide automatically towards the discharge port under the action of gravity, realizing automatic feeding and reducing manual intervention; the unloading frame and NG frame collect qualified and unqualified products respectively, which facilitates subsequent classification and processing and improves the orderliness of the production process.

[0026] Preferably, the handling device includes a horizontal handling robot, a vertical handling robot, and a feeding mechanism, wherein the horizontal handling robot's transport range covers the loading frame, unloading frame, and NG frame;

[0027] The feeding mechanism is located in the discharge direction of the loading frame. The feeding mechanism includes an XZ axis transfer module and a transport frame. The transport frame has several V-shaped grooves that are adapted to the outer wall of the heat pipe. The feeding mechanism pushes the heat pipes in the loading frame one by one to the transport station.

[0028] The vertical transport robot transfers the heat pipe from the feeding mechanism to the horizontal transport robot, which then inserts the heat pipe into the clamp.

[0029] By adopting the above technical solution, the feeding mechanism pushes the heat pipes in the loading frame one by one to the handling station through the XZ axis transfer module and the handling frame. The vertical and horizontal handling robots work together to realize the automatic transfer of heat pipes between various devices, replacing manual handling, improving production efficiency, and ensuring the accuracy of the handling process to avoid collision damage to the heat pipes.

[0030] Preferably, the feeding frame is provided with a top rod, which is driven by a cylinder. The end of the top rod is provided with a V-shaped groove, and a rubber anti-slip layer is pasted in the V-shaped groove. The conveying frame moves to the bottom of the top rod and is raised to receive the heat pipe.

[0031] By adopting the above technical solution, the cylinder drives the push rod to lift the heat pipe at the bottom of the feeding frame. The V-shaped groove and the rubber anti-slip layer ensure that the heat pipe is stably supported on the conveying frame, realizing the orderly feeding of a single heat pipe, avoiding blockage caused by the simultaneous conveying of multiple heat pipes, and improving the stability and continuity of feeding.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. By integrating feeding, handling, drying, positioning, and vacuuming devices, and coordinating with robotic arms and control systems, the heat pipe vacuuming process is fully automated, reducing manual intervention, significantly improving production efficiency, and adapting to the needs of mass production.

[0034] 2. The drying mechanism has an adjustable blowing distance to accommodate heat pipes of different lengths, ensuring thorough drying; the positioning device provides precise positioning, and the vacuum device ensures that the vacuum level meets the standards through a sealed structure and vacuum monitoring; the detection mechanism identifies defects such as leaks in real time, controlling product quality from multiple stages to ensure stable and reliable heat pipe performance.

[0035] 3. The enclosed protective shell and leakage detection mechanism prevent high-temperature air leakage from causing burns; the detection head wrapping layer, filter plate and other components are detachable, which is convenient for cleaning and replacement, reducing equipment maintenance costs; the elastic claws, rubber buffer layer and other structures reduce heat pipe damage and improve production safety. Attached Figure Description

[0036] Figure 1 This is a perspective view of an embodiment of this application;

[0037] Figure 2 This is a perspective view of the specific structure of this application;

[0038] Figure 3 These are structural views of the positioning device, the conveying device, and the loading device;

[0039] Figure 4 This is a structural view of the drying device;

[0040] Figure 5 , Figure 6 and Figure 7 It is a three-dimensional view of the specific structure of the testing organization.

[0041] Explanation of reference numerals in the attached drawings: 10. Machine base; 100. Protective shell; 11. Feeding frame; 12. Top rod; 21. Vertical handling robot; 22. Horizontal handling robot; 23. XZ axis transfer module; 24. Handling frame; 31. Pressing cylinder; 32. Pressing block; 33. Semi-circular groove; 34. Supporting block; 41. Adjusting cylinder; 42. Hot air nozzle; 421. Blow hole; 51. Detection head; 52. Coating layer; 53. Mounting plate; 542. Diaphragm; 543. Conductive block; 55. First ring; 551. First filter plate; 56. Second ring; 561. Second filter plate; 57. Connecting rod; 61. Positioning cylinder; 611. Positioning plate; 62. Push plate; 71. Vacuum tube; 72. Clamp; 81. Unloading frame; 82. NG frame. Detailed Implementation

[0042] The present application will be further described in detail below with reference to the accompanying drawings.

[0043] In the description of the invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0044] This application discloses an automated vacuum pumping device for heat pipes, referring to... Figure 1 and Figure 2 An automated vacuuming device for heat pipes includes a machine base 10, on which a protective shell 100 is bolted. The protective shell 100 has a frame structure, providing a relatively stable working environment for the various internal components and reducing interference from the external environment. The protective shell 100 integrates a feeding device, a handling device, a drying device, a positioning device, and a vacuum device. These devices work together to complete the automated vacuuming operation of the heat pipes.

[0045] The drying device includes a drying mechanism, a testing mechanism, and a pressing mechanism.

[0046] Reference Figure 3 and Figure 4 The drying mechanism includes a hot air blower 42 and an adjusting cylinder 41. The hot air blower 42 is connected to an external hot air generator via a pipeline and can blow hot air outward according to control. The drive shaft of the adjusting cylinder 41 is fixedly connected to the hot air blower 42. When the heat pipe is delivered to the working area of ​​the drying mechanism, the adjusting cylinder 41 is activated first, and its drive shaft extends and retracts horizontally, driving the hot air blower 42 to move synchronously, thereby flexibly adjusting the blowing distance between the hot air blower 42 and the heat pipe. The hot air blower 42 has a blowing hole 421, from which hot air is blown out. For heat pipes of different lengths, the adjusting cylinder 41 can precisely control the position of the hot air blower 42, and control the airflow speed by adjusting the blowing distance.

[0047] Reference Figure 5 , Figure 6 and Figure 7 The testing mechanism includes testing heads 51 positioned opposite each other in the air outlet direction of the hot air blower 42. Testing heads 51 are used to monitor the condition of the heat pipe after drying in real time. Testing heads 51 are covered with a protective layer 52 made of sponge material, which has several ventilation holes with a diameter of 1-3mm. The protective layer 52 is detachably connected to the testing head 51 via Velcro, and can be quickly removed and replaced when the protective layer 52 becomes dusty or worn.

[0048] The detection head 51 consists of a mounting plate 53, a first ring 55, and a second ring 56. The mounting plate 53, the first ring 55, and the second ring 56 are coaxially fixedly connected by eight evenly distributed connecting rods 57, which ensure that the three maintain coaxiality during movement. A first filter plate 551 and a second filter plate 561 are respectively fixed on the first ring 55 and the second ring 56. The aperture of the first filter plate 551 is larger than that of the second filter plate 561. In this embodiment, the aperture of the first filter plate 551 is 5 mm, and the aperture of the second filter plate 561 is 2 mm. When the hot air blower 42 blows hot air into the heat pipe, some of the hot air will flow out from the other end of the heat pipe and pass through the first filter plate 551 and the second filter plate 561 in sequence. Larger impurities are intercepted by the first filter plate 551, and fine particles are filtered by the second filter plate 561, preventing impurities from adhering to the detection element and affecting the detection accuracy.

[0049] The clamping mechanism includes a clamping cylinder 31, the output shaft of which is fixedly connected to a clamping block 32. A support block 34 is bolted to the machine base 10 directly below the clamping block 32. Semi-circular grooves 33 are formed on the opposite sides of both the clamping block 32 and the support block 34. When the two semi-circular grooves 33 are closed, they form a circular hole with a diameter matching the outer diameter of the heat pipe. When the heat pipe is transported to the drying station, the drive shaft of the clamping cylinder 31 extends first, driving the clamping block 32 downwards until the semi-circular grooves 33 of the clamping block 32 and the support block 34 completely enclose the heat pipe. At this point, the heat pipe is firmly clamped within the circular hole, preventing the heat pipe from shaking due to hot air impact. After drying, the drive shaft of the clamping cylinder 31 retracts, the clamping block 32 returns to its original position, and the heat pipe is released.

[0050] The detection head 51 is driven by an electric push rod. When the hot air blower 42 is adjusted in position under the drive of the adjusting cylinder 41, the electric push rod will move synchronously, driving the detection head 51 to move along the heat pipe axis and fit the heat pipe inside the detection head.

[0051] If a leak occurs at the closed end of the heat pipe, hot air will blow out from the leak. The hot air is at a high temperature and is amplified after passing through the thin heat pipe. To prevent this hot air from blowing a long distance from the machine 10 and posing a danger to passersby, a detection element is fixed to the side of the mounting plate 53 near the second ring 56. The detection element includes a conductive block 543, a diaphragm 542 attached to the conductive block 543, and strain gauges attached parallel to both sides of the diaphragm 542. The strain gauges are soldered to the conductive block 543 via wires, and the conductive block 543 is connected to an external control system via signal lines. When the moisture inside the heat pipe is discharged with the hot air, the first filter plate 551 and the second filter plate 561 evenly distribute the airflow of the hot air to prevent the concentrated airflow from damaging the diaphragm 542. The evenly distributed hot air will come into contact with the diaphragm 542, causing the diaphragm 542 to undergo a slight deformation. The strain gauge converts the deformation into an electrical signal and transmits it to the control system through the conductive block 543, thereby determining that there is a leak on the closed side end face of the heat pipe.

[0052] Reference Figure 3The positioning device includes a positioning cylinder 61, whose drive shaft is fixedly connected to a positioning plate 611. The movement direction of the positioning plate 611 is perpendicular to the heat pipe conveying direction. Two push plates 62 are oppositely arranged on the positioning plate 611, each with an electric push rod bolted to its back. A 3mm thick rubber buffer layer is adhered to the opposite surfaces of the push plates 62, and the surface of the rubber layer is pressed with anti-slip textures. When the heat pipe is conveyed to the positioning station, the positioning cylinder 61 first drives the positioning plate 611 to move to both sides of the heat pipe. Then, the two electric push rods are simultaneously activated, driving the push plates 62 to move towards the heat pipe. The rubber buffer layer first contacts the surface of the heat pipe. As the push plates 62 continue to approach, the rubber layer undergoes elastic deformation, clamping the heat pipe in the center position. The anti-slip textures increase the friction with the heat pipe, preventing the heat pipe from sliding during positioning. After positioning is completed, the electric push rod drives the push plates 62 to reset, and the positioning cylinder 61 drives the positioning plate 611 back to its initial position.

[0053] Reference Figure 2 The machine base 10 is bolted with a feeding frame 11, a discharging frame 81, and an NG frame 82. The bottom surface of the feeding frame 11 is inclined. In this embodiment, the inclination angle is 35 degrees to facilitate the sliding of the heat pipe towards the outlet under gravity. A push rod 12 is installed on the inner side wall of the feeding frame 11 near the bottom. The push rod 12 is driven by a cylinder. A V-shaped groove is opened at the end of the push rod 12, and a rubber anti-slip layer is pasted in the V-shaped groove. The cylinder drives the push rod 12 to extend upward, lifting the bottommost heat pipe. The conveying frame 24 of the feeding mechanism then moves to below the push rod 12. The bottom of the heat pipe contacts the V-shaped groove of the conveying frame 24. The rubber anti-slip layer prevents the heat pipe from slipping during the lifting process. Then the push rod 12 returns to its original position, and the next heat pipe takes its place.

[0054] The handling device includes a horizontal handling robot 22, a vertical handling robot 21, and a feeding mechanism. The slide rail of the horizontal handling robot 22 covers the area above the loading frame 11, the unloading frame 81, and the NG frame 82. The feeding mechanism is located in the discharge direction of the loading frame 11 and includes an XZ-axis transfer module 23 and a handling frame 24. The handling frame 24 has multiple V-shaped grooves adapted to the outer wall of the heat pipe, and silicone pads are attached to the V-shaped grooves. When the push rod 12 pushes the heat pipe into the V-shaped groove of the handling frame 24, the XZ-axis transfer module 23 drives the handling frame 24 to move along the X-axis, pushing the heat pipe one by one to the handling station.

[0055] After the gripper of the vertical transport robot 21 picks up the heat pipe from the transport station, it lifts it to a set height and then moves along the Z-axis to the picking position of the horizontal transport robot 22. After the gripper of the horizontal transport robot 22 takes the heat pipe, it rotates 90 degrees to insert the heat pipe into the clamp 72 of the vacuum device. After the heat pipe has been vacuumed and passed the inspection, the horizontal transport robot 22 transports it to the unloading frame 81; if it fails the inspection, it is placed in the NG frame 82.

[0056] The vacuum device includes multiple evenly arranged clamps 72. Each clamp 72 employs a flexible claw structure, with a silicone sealing ring adhered to the inner wall of the claw. The bottom of each clamp 72 is connected to an external vacuum pump via a vacuum tube 71. When the lateral transport robot 22 inserts the heat pipe into the clamp 72, the claw tightens under its own elasticity, and the sealing ring fits tightly against the outer wall of the heat pipe to form a sealed cavity. After the vacuum pump is started, the pressure inside the vacuum tube 71 gradually decreases, extracting the air from inside the heat pipe. The vacuum device also includes a vacuum sensor. If the vacuum sensor detects an abnormal pressure, it will alert the operator and mark the corresponding heat pipe position.

[0057] The implementation principle of this application embodiment is as follows: the heat pipe in the loading frame 11 slides down the slope, the top rod 12 pushes the bottom heat pipe into the transport frame 24, the feeding mechanism pushes the heat pipe to the transport station, the vertical transport robot 21 transfers the heat pipe to the horizontal transport robot 22, the horizontal transport robot 22 sends the heat pipe to the positioning device for positioning, and then transports it to the drying device. The clamping mechanism clamps the heat pipe, the hot air blower 42 and the detection head 51 work together to complete the drying detection, the dried heat pipe is transported to the vacuum device for vacuuming, and finally qualified products are put into the unloading frame 81, and unqualified products are put into the NG frame 82. The various devices are linked through the control system to ensure a smooth production rhythm and improve production efficiency.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automated vacuum pumping device for heat pipes, comprising a machine base (10), wherein a protective shell (100) is bolted to the machine base (10), the protective shell (100) being a frame structure, characterized in that, The protective shell (100) is equipped with a feeding device, a conveying device, a drying device, a positioning device and a vacuum device. The drying device includes a drying mechanism, which includes a hot air blower (42) and an adjusting cylinder (41). The drive shaft of the adjusting cylinder (41) is fixedly connected to the hot air blower (42) to adjust the blowing distance. The hot air blower (42) has a blowing hole (421). The drying device also includes a detection mechanism, which includes a detection head (51) opposite to the air outlet direction of the hot air blower (42). The detection head (51) is covered with a wrapping layer (52), and the wrapping layer (52) is detachably connected to the detection head (51). The detection head (51) includes a mounting plate (53), a first ring (55) and a second ring (56). The mounting plate (53), the first ring (55) and the second ring (56) are coaxially fixedly connected by a number of evenly distributed connecting rods (57). A first filter plate (551) and a second filter plate (561) are respectively fixed on the first ring (55) and the second ring (56). The aperture of the first filter plate (551) is larger than that of the second filter plate (561). The detection head (51) is driven by an electric push rod, and the mounting plate (53) is fixedly connected to the end of the drive rod of the electric push rod. The detection element is fixed on the mounting plate (53).

2. The automated vacuum pumping device for heat pipes according to claim 1, characterized in that, The wrapping layer (52) is made of sponge material, and several air vents are provided on the wrapping layer (52), with the diameter of the air vents being 1-3mm.

3. The automated vacuum pumping device for heat pipes according to claim 1, characterized in that, The detection element includes a conductive block (543), which is fixed to the side of the mounting plate (53) near the second ring (56). A diaphragm (542) is fixed on the conductive block (543), and strain gauges are fixed parallel to each other on both sides of the diaphragm (542). The strain gauges are electrically connected to the conductive block (543) through wires. The conductive block (543) is connected to the signal of an external control system.

4. The automated vacuum pumping device for heat pipes according to claim 1, characterized in that, The drying device also includes a pressing mechanism, which includes a pressing cylinder (31). The output shaft of the pressing cylinder (31) is connected to a pressing block (32). The pressing mechanism also includes a supporting block (34) located directly below the pressing block (32). The supporting block (34) is fixed to the machine base (10). The pressing block (32) and the supporting block (34) are provided with semi-circular grooves (33) that form a circular hole when closed. The diameter of the circular hole is adapted to the outer diameter of the heat pipe.

5. The automated vacuum pumping device for heat pipes according to claim 1, characterized in that, The positioning device includes a positioning cylinder (61), and a positioning plate (611) is mounted on the drive shaft of the positioning cylinder (61). The movement direction of the positioning plate (611) is perpendicular to the heat pipe delivery direction.

6. The automated vacuum pumping device for heat pipes according to claim 5, characterized in that, The positioning plate (611) is provided with two push plates (62) opposite each other. Each push plate (62) is driven by an independent electric push rod. A rubber buffer layer is pasted on the push plate (62), and the surface of the rubber layer is provided with anti-slip texture.

7. The automated vacuum pumping device for heat pipes according to claim 6, characterized in that, The vacuum device includes several uniformly arranged clamps (72) and a vacuum sensor. The clamps (72) adopt an elastic claw structure, and the inner wall of the claw is provided with a sealing ring. The clamps (72) are connected to an external vacuum pump through a vacuum tube (71).

8. The automated vacuum pumping device for heat pipes according to claim 1, characterized in that, The machine (10) is also equipped with a loading frame (11), a unloading frame (81) and an NG frame (82), and the loading frame (11) is provided with a slope of 30-45 degrees.

9. The automated vacuum pumping device for heat pipes according to claim 8, characterized in that, The transport device includes a horizontal transport robot (22), a vertical transport robot (21), and a feeding mechanism. The transport range of the horizontal transport robot (22) covers the loading frame (11), the unloading frame (81), and the NG frame (82). The feeding mechanism is located in the discharge direction of the loading frame (11). The feeding mechanism includes an XZ axis transfer module (23) and a transport frame (24). The transport frame (24) has several V-shaped grooves that are adapted to the outer wall of the heat pipe. The feeding mechanism pushes the heat pipes in the loading frame (11) one by one to the transport station. The vertical transport robot (21) transfers the heat pipe on the feeding mechanism to the horizontal transport robot (22), and the horizontal transport robot (22) inserts the heat pipe into the clamp (72).

10. An automated heat pipe vacuuming device according to claim 9, characterized in that, The feeding frame (11) is provided with a top rod (12), which is driven by a cylinder. The end of the top rod (12) is provided with a V-shaped groove, and a rubber anti-slip layer is pasted in the V-shaped groove. The conveying frame (24) moves to the bottom of the top rod (12) and lifts up to receive the heat pipe.

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