A heat pipe positioning and welding device

Abstract

The application discloses a heat pipe positioning and welding device in the technical field of heat pipe positioning and welding, which comprises a welding table, a bearing seat and a laser welder, and further comprises a heat pipe positioning mechanism, the heat pipe positioning mechanism is arranged on the upper surface of the bearing seat in a lifting mode, and a positioning cavity is formed between the bearing seat and the heat pipe positioning mechanism; a locking mechanism, the heat pipe positioning mechanism is composed of multiple groups of positioning rods and a lifting plate, the multiple groups of positioning rods are elastically arranged in the lifting plate, the locking mechanism is arranged on one side of the lifting plate, the multiple groups of positioning rods are fixedly arranged on the lifting plate through the locking mechanism, and the locking mechanism is in transmission connection with the welding table; the multiple groups of positioning rods, the locking mechanism and the positioning head are cooperated to realize quick positioning and fixing of irregular heat pipes, the positioning efficiency of the heat pipe positioning and welding device and the welding sealing quality are effectively improved, in addition, the cleaning mechanism and the first rotary reciprocating mechanism are used to realize high-efficiency and high-quality heat pipe welding sealing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat pipe positioning welding, in particular to a heat pipe positioning welding device. BACKGROUND

[0002] A heat pipe is a high-efficiency heat transfer element, and its main working principle is to use the evaporation and condensation process of liquid in the pipe to realize heat transfer. There is a small amount of liquid working medium in the heat pipe. When one end is heated, the liquid evaporates to absorb heat, and the steam flows to the other end to condense to release heat, and so on, achieving high-efficiency heat transfer. The heat pipe has many advantages such as high heat transfer capacity, small thermal resistance, good isothermality, etc., and is widely used in aerospace, electronic equipment heat dissipation, solar energy, refrigeration and many other industries. Heat pipe positioning is the process of accurately placing the heat pipe in a device or system according to specific geometric positions, directions, etc. The purpose is to ensure that the heat pipe can be accurately connected with the heat source, heat sink and other components to achieve good heat transfer effect. The one end of the heat pipe usually needs to be sealed to prevent internal leakage and maintain its internal pressure and working state.

[0003] However, the prior art still has the following problems: First, the positioning structure used for welding and sealing the one end of the heat pipe usually uses a bolt pressing or a bolt clamping positioning structure. This structure has a single position and can only clamp and fix heat pipes of the same specification. It cannot effectively and stably clamp and position curved heat pipes or irregular heat pipes, so the heat pipe cannot be effectively fixed, which may cause welding misalignment during welding and affect the welding and sealing effect of the one end of the heat pipe. SUMMARY

[0004] In view of the deficiencies in the prior art, the present application provides a new technical solution of a heat pipe positioning welding device.

[0005] The purpose of the present application is achieved by a heat pipe positioning welding device, which comprises a welding table, a bearing seat and a laser welder. The laser welder is arranged at one end of the upper surface of the welding table, and the bearing seat is slidingly installed on the upper surface of the welding table. One end of the upper surface of the bearing seat is provided with a welding seat, and further comprises:

[0006] A heat pipe positioning mechanism is arranged on the upper surface of the bearing seat, and a positioning cavity is formed between the bearing seat and the heat pipe positioning mechanism.

[0007] A locking mechanism is arranged on one side of the lifting plate, and the plurality of positioning rods are fixedly arranged on the lifting plate through the locking mechanism. The locking mechanism is in transmission connection with the welding table.

[0008] Optionally, a movable groove is provided inside the lifting plate, and a fixed plate is slidably installed inside the movable groove. Multiple groups of positioning holes are provided on the fixed plate, and the positioning rods are located inside the positioning holes. The fixed plate is set to move horizontally through a locking mechanism.

[0009] Optionally, the positioning rod consists of a lifting column and two sets of positioning heads, the positioning heads are rotatably mounted on the bottom of the lifting column, the lifting column is elastically arranged inside the movable groove, and the lifting columns are all located inside the positioning holes.

[0010] Optionally, the opposite sides of the two groups of positioning heads are both arranged in an arc shape, and the lower ends of the sides of the two groups of positioning heads that are away from each other are both arranged in a rounded shape.

[0011] Optionally, grooves are provided at both ends of the bottom of the lifting column, and connecting seats are slidably installed inside the grooves. Side mounting plates are rotatably connected to both ends of the connecting seats, and the side mounting plates are fixedly connected to the positioning heads.

[0012] Optionally, fastening grooves are provided on both sides of the lifting column, and two groups of fixing strips are elastically connected to the inside of the two groups of fastening grooves. Fixed grooves that are interconnected are provided on both sides and the upper surface of the connecting seat, and one end of the fixing strip extends into the inside of the fixing groove. The lower ends of the two groups of fixing strips on the side away from each other are fixedly installed with fixing heads, and the fixing heads are arranged corresponding to the center of the rotation axis of the side mounting plate.

[0013] Optionally, a transmission tooth plate is fixedly installed on one end of one side of the inner portion of the groove, and a fitting gear is fixedly installed on one set of the side plate rotating shafts, and the transmission tooth plate is meshingly connected with the fitting gear.

[0014] Optionally, a fixed block is fixedly installed on one side of the positioning hole, and a pull rod is fixedly installed on the other side of the positioning hole. Another set of fixed blocks is fixedly installed on one end of the pull rod, and both sets of fixed blocks are T-shaped, and the fixed blocks are located between the two sets of fixed bars.

[0015] Optionally, the locking mechanism includes a linkage screw rod, which is rotatably installed on one side of the lifting plate, and one side of the lifting plate is rotatably connected to a threaded plate threadedly sleeved on the outside of the linkage screw rod. One end of the linkage screw rod is fixedly connected to the fixed plate, and the threaded plate is transmission-connected to the welding table.

[0016] Optionally, a second synchronization mechanism is fixedly installed at one end of the threaded plate, and the end of the second synchronization mechanism is transmission-connected to a second bevel gear mechanism, and the end of the second bevel gear mechanism is transmission-connected to a transmission gear. A slide groove is provided on the upper surface of the welding table, and a second tooth groove is provided on one side inside the slide groove, and the second tooth groove is meshed with the transmission gear.

[0017] Compared with the prior art, the present application has the beneficial effects that: the heat pipe to be welded in the present application is positioned and fixed more comprehensively by the cooperation of the lifting plate and the multiple sets of positioning rods, the lifting plate drives the multiple sets of positioning rods to approach the surface of the bearing seat, and the multiple sets of positioning rods gradually approach and fit the surface of the heat pipe by elasticity, the multiple sets of positioning rods are clamped on the surface of the heat pipe and limit the side surface of the heat pipe, thereby the heat pipe can be positioned and fixed more comprehensively, and the problem that the heat pipe cannot be fixed stably and comprehensively by the traditional bolt clamping is solved, and therefore the welding and sealing quality of one end of the heat pipe is effectively improved.

[0018] Secondly, when the bearing seat slides to the welding area of the laser welder, the multiple sets of positioning rods are fixed by the fixed plate through the cooperation of the second gear groove and the transmission gear, so that the heat pipe does not need to be manually fixed, and only the heat pipe to be welded is placed on the welding seat and the most area of the heat pipe is placed on the bearing seat, thereby the positioning and welding efficiency of the heat pipe is further improved.

[0019] Meanwhile, through the specific design of the two sets of lifting columns and the two sets of positioning heads that slide relative to each other, when the lifting columns are lowered and fit the upper surface of the heat pipe, if the heat pipe is not in the central position between the two sets of positioning heads, one of the positioning heads can wrap the side surface of the heat pipe by the arc-shaped contact surface and the rotating connection, and the other positioning head can be in contact with the surface of the heat pipe, then the positioning head is further lowered by the elasticity of the positioning spring, and is rotated and fitted to the other side of the heat pipe by the meshing connection of the transmission gear plate and the fitting gear, thereby the two sets of positioning heads can be stably fitted on the surface of the heat pipe, and therefore the stability of the heat pipe during positioning and the practicability of the heat pipe positioning and welding are further improved.

[0020] In addition, when the bearing seat slides to the welding area of the laser welder, the cleaning cotton can approach the welding end surface of the heat pipe placed on the welding seat by the transmission component, so that the cleaning cotton can repeatedly rotate and insert into the welding end of the heat pipe, thereby the welding and sealing quality of the heat pipe can be improved when welding.

[0021] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on the provided drawings.

[0023] Figure 1 The overall first perspective view structure of the present application.

[0024] Figure 2 The overall second perspective view structure of the present application.

[0025] Figure 3 The first rotating reciprocating mechanism structure of the present application.

[0026] Figure 4 The lifting plate structure of the present application.

[0027] Figure 5 The bearing seat structure of the present application.

[0028] Figure 6 The A enlarged structure of the present application. Figure 5

[0029] The B enlarged structure of the present application. Figure 7

[0030] The C enlarged structure of the present application. Figure 8 Figure 7 The D enlarged structure of the present application.

[0031] Figure 9 Figure 7 The positioning rod structure of the present application.

[0032] Figure 10 The welding table structure of the present application.

[0033] Figure 11 The E enlarged structure of the present application. Figure 10

[0034] The positioning head structure of the present application. Figure 12

[0035] The lifting column structure of the present application. Figure 13

[0036] The ceramic bearing structure of the present application. Figure 14

[0037] The connecting plate structure of the present application. Figure 15

[0038] The E enlarged structure of the present application. Figure 16

[0039] ​​​The following are marked in the figure: 1. Heat pipe positioning mechanism; 2. Cleaning mechanism; 3. Bearing seat; 4. Welding table; 5. Laser welder; 6. Driving motor; 7. Welding seat; 8. Upper fixing seat; 9. Lower fixing seat; 10. First tooth groove; 11. Locking mechanism; 12. Electric lifter; 13. Second tooth groove; 14. First rotary reciprocating mechanism; 101. Lifting plate; 102. Positioning rod; 1021. Spring telescopic rod; 1022. Lifting column; 1023. Positioning head; 1024. Fixing bar; 1025. Connecting seat; 1026. Side mounting plate; 1027. Ceramic bearing; 1028. Positioning Spring; 1029, connecting plate; 103, fixing plate; 104, fixing block; 105, pull rod; 106, fixing head; 107, fitting gear; 108, transmission gear plate; 201, transmission component; 2011, first synchronization mechanism; 2012, second rotary reciprocating mechanism; 2013, first bevel gear mechanism; 2014, transmission sleeve; 2015, linkage rod; 2016, push plate; 202, cleaning cotton; 1101, linkage screw rod; 1102, threaded plate; 1103, positioning shell; 1104, second synchronization mechanism; 1105, second bevel gear mechanism; 1106, transmission gear. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] like Figures 1-16 As shown, a heat pipe positioning welding device includes a welding table 4, a supporting base 3 and a laser welder 5. The laser welder 5 is arranged at one end of the upper surface of the welding table 4, and the supporting base 3 is slidably mounted on the upper surface of the welding table 4. A welding seat 7 is provided at one end of the upper surface of the supporting base 3. The device also includes:

[0042] The heat pipe positioning mechanism 1 is lifted and arranged on the upper surface of the supporting base 3, and a positioning cavity is formed between the supporting base 3 and the heat pipe positioning mechanism 1;

[0043] Specifically, such as Figures 1 to 5 As shown, a positioning groove is provided on the upper surface of the supporting seat 3 for placing the heat pipe, and a welding seat 7 is provided at one end of the positioning groove. The heat pipe can be placed horizontally inside the positioning groove, and the end of the heat pipe that needs to be welded and sealed can be placed horizontally in the welding seat 7 for welding.

[0044] The locking mechanism 11, the heat pipe positioning mechanism 1 is composed of multiple sets of positioning rods 102 and lifting plates 101, the multiple sets of positioning rods 102 are elastically arranged in the lifting plates 101, and the locking mechanism 11 is arranged on one side of the lifting plates 101, the multiple sets of positioning rods 102 are fixedly arranged with the lifting plates 101 through the locking mechanism 11, and the locking mechanism 11 is in transmission connection with the welding table 4.

[0045] As shown in Figures 1 to 16 , the multiple sets of positioning rods 102 are arranged at equal intervals, so that the multiple sets of positioning rods 102 can be close to the surface of the heat pipe through close arrangement, and the heat pipe can be stably positioned, and the heat pipe with irregular or curved type can be stably positioned, and the sealing and welding quality of the heat pipe end portion is improved.

[0046] Specifically, as shown in Figures 1 to 16 , the above-mentioned bearing seat 3 is provided with two groups, and a reciprocating groove is formed in the middle of the upper surface of the welding table 4, a driving motor 6 is arranged in the reciprocating groove, a first rotary reciprocating mechanism 14 is connected to one end of the output shaft of the driving motor 6, the two groups of bearing seats 3 are fixedly arranged with each other, and the first rotary reciprocating mechanism 14 is in transmission connection with one of the two groups of bearing seats 3.

[0047] Through the design of the driving motor 6 and the first rotary reciprocating mechanism 14, the first rotary reciprocating mechanism 14 can convert rotary motion into reciprocating linear motion, realize the control of the two groups of bearing seats 3 constantly sliding horizontally on the upper surface of the welding table 4, therefore, the two groups of bearing seats 3 can be constantly replaced, realize that when one of the two groups of bearing seats 3 is located in the welding area of the laser welder 5, the other group of bearing seats 3 can be taken out and placed the heat pipe to be welded, and the two groups of bearing seats 3 are used alternately, so that the two groups of bearing seats 3 are used alternately, therefore, the working time of the sealing and welding can be used to pre-position the heat pipe, so as to reduce the positioning and taking time of the heat pipe, and further improve the working efficiency and practicability of the heat pipe positioning and welding device.

[0048] Specifically, as shown in Figures 1 to 16 , one end of the two groups of bearing seats 3 is provided with a cleaning mechanism 2;

[0049] The cleaning mechanism 2 comprises cleaning cotton 202 and transmission components 201, and the cleaning cotton 202 is arranged in correspondence with the welding seat 7.

[0050] The transmission component 201 includes a first synchronization mechanism 2011 and a second rotation reciprocating mechanism 2012. An upper fixed seat 8 and a lower fixed seat 9 are fixedly installed above and below one end of the two sets of bearing seats 3, respectively. The first synchronization mechanism 2011 is arranged between one end of the upper fixed seat 8 and the lower fixed seat 9, and one end of the first synchronization mechanism 2011 is connected to a transmission sleeve 2014 for transmission, and a push plate 2016 is connected to one side of the cleaning cotton 202 for rotation, and a linkage rod 2015 is fixedly installed at the center of one side of the cleaning cotton 202, and the transmission sleeve 2014 is slidably sleeved on the linkage rod On the outside of 2015, the other end of the first synchronization mechanism 2011 is transmission-connected with the first bevel gear mechanism 2013, a transmission groove is provided on the surface of the lower fixed seat 9, the first bevel gear mechanism 2013 is arranged inside the transmission groove, and the end of the first bevel gear mechanism 2013 is transmission-connected with the second rotating reciprocating mechanism 2012, and an avoidance hole is provided on the upper surface of the upper fixed seat 8, and the end of the push plate 2016 passes through the avoidance hole and is transmission-connected with the second rotating reciprocating mechanism 2012, so that the push plate 2016 is arranged to reciprocate horizontally on the upper fixed seat 8 through the second rotating reciprocating mechanism 2012.

[0051] For example, the first synchronization mechanism 2011 mentioned above adopts the transmission method of two sets of synchronization wheels and synchronization belts to realize structural transmission, and the structural method of using synchronization wheels and synchronization belts for transmission has become an existing mature technology. Those skilled in the art should know how to install and use the first synchronization mechanism 2011 to realize the rotation of the transmission sleeve 2014 while driving the second rotating reciprocating mechanism 2012 through the first bevel gear mechanism 2013. Therefore, the present invention will not be elaborated here.

[0052] like Figures 1 to 16 As shown, first tooth grooves 10 are provided at both ends of one side of the upper surface of the welding table 4, and the synchronization wheel of the first synchronization mechanism 2011 at the bottom is engaged with the first tooth groove 10, and the two sets of synchronization wheels of the first synchronization mechanism 2011 are respectively rotatably connected to the upper fixed seat 8 and the lower fixed seat 9.

[0053] Through the design of the first tooth groove 10 and the specified first synchronization mechanism 2011, when the supporting seat 3 slides on the upper surface of the welding table 4 and approaches the laser welder 5, the first synchronization mechanism 2011 can be driven by power through the first tooth groove 10 to control the transmission sleeve 2014 to cooperate with the linkage rod 2015 to drive the cleaning cotton 202 to rotate. At the same time, the first synchronization mechanism 2011 can also control the second rotating reciprocating mechanism 2012 through the first bevel gear mechanism 2013 to drive the push plate 2016 to control the rotation of the cleaning cotton 202 and approach one end of the heat pipe to achieve rotation and sliding wiping of impurities.

[0054] It should be noted that the welding seat 7 in the above is provided with an arc-shaped hole, so that the one end of the heat pipe which needs to be sealed and welded can be more stably prevented, and the center of the cleaning cotton 202 corresponds to the circular point of the arc-shaped hole. Therefore, when the cleaning cotton 202 approaches the one end of the heat pipe through the transmission component 201, it can rely on its flexible characteristics and rotate to effectively clean and wipe the position of the heat pipe which needs to be sealed and welded.

[0055] Through the second rotary reciprocating mechanism 2012, the cleaning cotton 202 can be inserted into the one end of the heat pipe which needs to be sealed and welded and extracted. When the welding seat 7 does not reach the welding position of the laser welder 5, the cleaning cotton 202 can repeatedly wipe the one end of the heat pipe to avoid impurities remaining in the heat pipe and the one end which needs to be sealed and welded, thereby effectively improving the welding quality of the heat pipe.

[0056] It should be noted that, as shown in Figures 3 to 6 The first rotary reciprocating mechanism 14 and the second rotary reciprocating mechanism 2012 in the above are both used in the structure of converting rotary motion into linear reciprocating motion, and the structure of converting circular rotary motion into linear reciprocating motion has become a mature technology. Those skilled in the art should know how to install and use the first rotary reciprocating mechanism 14 and the second rotary reciprocating mechanism 2012. Therefore, the present application will not be described here.

[0057] Further, the lifting plate 101 is provided with a movable groove, and the movable groove is slidably provided with a fixed plate 103. A plurality of positioning holes are formed in the fixed plate 103, and the positioning rod 102 is located in the positioning hole. The fixed plate 103 is provided with a horizontal motion through the locking mechanism 11.

[0058] Specifically, as shown in Figures 1 to 16 The lifting plate 101 is provided on the upper surface of the bearing seat 3 through the electric lifter 12.

[0059] Exemplarily, the electric lifter 12 in the above can be used in the structure of an electric push rod, and the electric push rod has become a mature technology for realizing extension and retraction, lifting or horizontal sliding. Those skilled in the art should know how to install and use the electric lifter 12 to realize the lifting movement of the lifting plate 101 on the upper surface of the bearing seat 3. Therefore, the present application will not be described here.

[0060] Further, the positioning rod 102 is composed of a lifting column 1022 and two positioning heads 1023. The positioning heads 1023 are rotatably installed at the bottom of the lifting column 1022. The lifting column 1022 is elastically arranged in the movable groove, and the lifting column 1022 is located in the positioning hole.

[0061] Specifically, as shown inFigure 12 As shown, a spring telescopic rod 1021 is provided between the lifting column 1022 and the top of the movable groove, so that the lifting column 1022 has elasticity through the spring telescopic rod 1021. Therefore, multiple groups of positioning rods 102 can better fit on irregular or curved heat pipe surfaces.

[0062] like Figures 1 to 16 As shown, by designing that the lifting column 1022 is located inside the positioning hole, when the fixing plate 103 slides horizontally, the lifting column 1022 can be squeezed to fix the position of the lifting column 1022, thereby preventing the lifting column 1022 from loosening and causing the heat pipe to shake during the welding process, thereby affecting the sealing welding quality.

[0063] Furthermore, the two sets of positioning heads 1023 have arc-shaped opposite sides, and the lower ends of the two sets of positioning heads 1023 that are away from each other are rounded.

[0064] like Figures 1 to 16 As shown, through the design that the opposite sides of the two sets of positioning heads 1023 are arranged in an arc shape, when the lifting column 1022 descends and approaches the center of the heat pipe surface, the positioning head 1023 can rely on the arc shape to fit on the heat pipe surface, thereby increasing the contact area with the heat pipe surface, which further improves the positioning stability of the positioning head 1023 on the heat pipe.

[0065] Specifically, such as Figure 15 As shown, the arcuate surfaces of the two sets of positioning heads 1023 are rotatably connected to multiple sets of ceramic bearings 1027;

[0066] Through the design of the ceramic bearing 1027, when the positioning head 1023 approaches the surface of the heat pipe and continues to move downward, the positioning head 1023 can reduce the friction with the surface of the heat pipe through the ceramic bearing 1027, thereby preventing the positioning head 1023 from excessively descending and causing extrusion friction to damage the surface of the heat pipe, thereby shortening its service life;

[0067] If the heat pipe is not completely aligned with the two sets of positioning heads 1023, when the ceramic bearing 1027 contacts the heat pipe, due to the deviation between the force direction of the ceramic bearing 1027 and the descending direction of the positioning head 1023, when the heat pipe is not placed in the center of the two sets of positioning heads 1023, a tangential force will be generated in the deviated part of the ceramic bearing 1027 to cause the ceramic bearing 1027 to rotate. At the same time, the tangential force causes the positioning head 1023 to move relative to adjust to adapt to the heat pipe.

[0068] Furthermore, grooves are provided at both ends of the bottom of the lifting column 1022, and a connecting seat 1025 is slidably installed inside the groove. Both ends of the connecting seat 1025 are rotatably connected to side mounting plates 1026, and the side mounting plates 1026 are fixedly connected to the positioning head 1023;

[0069] Specifically, as shown in Figure 12 The inner side of the groove is inclined, and the connecting seat 1025 slides on the vertical surface inside the groove. Therefore, through the design of the inclined surface, the angle of the side plate 1026 driving the positioning head 1023 to rotate is larger, and the positioning head 1023 can be positioned and attached to a heat pipe with a smaller diameter, thereby further improving the practicability of the heat pipe positioning and welding device.

[0070] Further, the two sides of the lifting column 1022 are provided with fastening grooves, and two groups of fixed strips 1024 are elastically connected inside the two groups of fastening grooves. The two sides and the upper surface of the connecting seat 1025 are provided with fixed grooves that are in communication with each other, and one end of the fixed strip 1024 extends into the fixed groove. The lower end of the side away from each other of the two groups of fixed strips 1024 is fixedly installed with a fixed head 106, and the fixed head 106 is arranged corresponding to the center of the rotating shaft of the side plate 1026. One end of the inner side of the groove is fixedly installed with a transmission gear plate 108, and one of the side plates 1026 is fixedly installed with an attachment gear 107. The transmission gear plate 108 is in meshing connection with the attachment gear 107.

[0071] As shown in Figures 1 to 16 When the two groups of fixed strips 1024 are away from each other, the fixed head 106 is pressed to squeeze the side plate 1026, so that the friction between the side plate 1026 and the fixed head 106 is greater than the friction between the side plate 1026 and the connecting seat 1025, so that the side plate 1026 cannot rotate with the connecting seat 1025, thereby realizing the angle fixation of the positioning head 1023.

[0072] Specifically, as shown in Figure 12 The upper surface of the lifting column 1022 is provided with a positioning spring 1028 at both ends, and the upper end of the positioning spring 1028 is fixedly installed with a connecting plate 1029. The upper end of the two groups of fixed strips 1024 is slidingly installed at the bottom of the connecting plate 1029.

[0073] Through the elastic design of the positioning spring 1028 and the design that the fixed strips 1024 penetrate and slide at both ends inside the fastening grooves and the fastening holes, when the heat pipe is not centered between the two groups of positioning heads 1023, one of the positioning heads 1023 can be directly attached to the surface of the heat pipe through the elastic force of the spring telescopic rod 1021, and the other positioning head 1023 cannot continue to descend due to the spring telescopic rod 1021. Therefore, the other positioning head 1023 can further descend through the positioning spring 1028, and in the process of descending, the positioning head 1023 rotates in the direction of approaching the heat pipe through the cooperation of the transmission gear plate 108 and the attachment gear 107, so as to be attached to the surface of the heat pipe, so as to further wrap and position the heat pipe. Therefore, the stability of the heat pipe after positioning is effectively improved.

[0074] Furthermore, a fixing block 104 is fixedly installed on one side of the positioning hole, and a pull rod 105 is fixedly installed on the other side of the positioning hole. Another set of fixing blocks 104 is fixedly installed on one end of the pull rod 105. Both sets of fixing blocks 104 are arranged in a T shape, and the fixing blocks 104 are located between the two sets of fixing bars 1024.

[0075] like Figures 1 to 16 As shown, through the design of the fixing block 104 and the pull rod 105, when the fixing plate 103 moves horizontally and approaches the extrusion lifting column 1022, the fixing block 104 in the positioning hole will squeeze the two groups of fixing bars 1024, so that the two groups of fixing bars 1024 move away from each other, and drive the fixing head 106 to fix the side mounting plate 1026, so that the angle of the positioning head 1023 is fixed, and at the same time, the position of the fixing bar 1024 is fixed due to the extrusion, thereby ensuring that the positioning head 1023 will not loosen. Therefore, the positioning welding equipment can quickly position and stably position and fix irregularly shaped heat pipes.

[0076] Furthermore, the locking mechanism 11 includes a linkage screw rod 1101, which is rotatably mounted on one side of the lifting plate 101, and a threaded plate 1102 threadedly sleeved on the outer side of the linkage screw rod 1101 is rotatably connected to one side of the lifting plate 101. One end of the linkage screw rod 1101 is fixedly connected to the fixed plate 103, and the threaded plate 1102 is transmission-connected to the welding table 4.

[0077] Specifically, such as Figures 1 to 16 As shown, a positioning shell 1103 is fixedly installed on one side of the lifting plate 101, and the linkage screw rod 1101 and the threaded plate 1102 are both located inside the positioning shell 1103;

[0078] Through the design of the positioning shell 1103, the linkage screw rod 1101 and the threaded plate 1102 can be prevented from being affected by the outside world during operation, thereby not only ensuring the safety of the staff, but also ensuring that the positioning rod 102 fixes the heat pipe when the supporting seat 3 moves close to the laser welder 5.

[0079] Furthermore, a second synchronization mechanism 1104 is fixedly mounted on one end of the threaded plate 1102, and a second bevel gear mechanism 1105 is transmission-connected to the end of the second synchronization mechanism 1104, and a transmission gear 1106 is transmission-connected to the end of the second bevel gear mechanism 1105. A slide groove is provided on the upper surface of the welding table 4, and a second tooth groove 13 is provided on one side of the inner portion of the slide groove, and the second tooth groove 13 is meshed with the transmission gear 1106.

[0080] Specifically, such as Figures 1 to 16As shown, the second synchronization mechanism 1104 and the second bevel gear mechanism 1105 are arranged in the shell of the electric lifter 12, so that the second synchronization mechanism 1104 can stably drive the second bevel gear mechanism 1105 to realize stable transmission of the transmission gear 1106.

[0081] As shown, Figures 1 to 16 When the bearing seat 3 approaches the laser welder 5, the transmission gear 1106 rotates through the second tooth groove 13 to drive the second bevel gear mechanism 1105, so that the second bevel gear mechanism 1105 drives the threaded plate 1102 to rotate through the second synchronization mechanism 1104, the threaded plate 1102 drives the linkage screw rod 1101 to slide horizontally into the active groove through the thread, and the linkage screw rod 1101 drives the fixed plate 103 to press and fix the plurality of lifting columns 1022, thereby completing the fixing and positioning of the heat pipe.

[0082] It should be noted that the second synchronization mechanism 1104 adopts the structure of two synchronous wheels and a synchronous belt for transmission, and the transmission by synchronous wheels and synchronous belts has become a mature technology, and those skilled in the art should know how to install and use the second synchronization mechanism 1104 to realize the rotation of the threaded plate 1102 during the transmission of the second bevel gear mechanism 1105, thereby controlling the horizontal movement of the linkage screw rod 1101, and thus the present application will not be described here.

[0083] Exemplarily, the first bevel gear mechanism 2013 and the second bevel gear mechanism 1105 both adopt the way of two bevel gears meshing with each other to realize reversing transmission, and the transmission by meshing bevel gears has become a mature technology, and those skilled in the art should know how to install and use the bevel gear mechanism to realize transmission, and thus the present application will not be described here.

[0084] As shown, Figure 10 and Figure 11 The positions of the first tooth groove 10 and the second tooth groove 13 can ensure that when the bearing seat 3 approaches the laser welder 5, the cleaning cotton 202 can rotate reciprocatingly, and the fixed plate 103 can fix the lifting column 1022, and when the bearing seat 3 is away from the laser welder 5, the cleaning cotton 202 can already rotate reciprocatingly and can be attached to the position where the heat pipe is welded by relying on its softness, so that it avoids that the cleaning cotton 202 cannot perform subsequent cleaning work, and the fixed plate 103 can cancel the pressing and fixing of the lifting column 1022 through the second tooth groove 13 again.

[0085] Exemplarily, the fixed strip 1024, the fixed head 106 and the side plate 1026 in the above description can all be made of steel material with high friction, so that when the fixed head 106 presses the side plate 1026, loosening can be avoided.

[0086] Further, the heat pipe to be welded is first removed from the carrier 3, then the heat pipe to be welded is directly placed on the carrier 3, and the end of the heat pipe to be welded is placed on the welding seat 7, and the multiple positioning rods 102 are controlled to simultaneously descend to perform the positioning operation, and the multiple lifting columns 1022 and the positioning head 1023 are automatically locked under the action of the locking mechanism 11 during the replacement of the two carriers 3, so that the heat pipe is positioned and fixed in a mechanical linkage and automation, and the positioning efficiency of the heat pipe is effectively improved.

[0087] The above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be noted that for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A heat pipe positioning welding device, comprising a welding table (4), a bearing seat (3) and a laser welder (5), wherein the laser welder (5) is arranged at one end of the upper surface of the welding table (4), and the bearing seat (3) is slidably mounted on the upper surface of the welding table (4), and a welding seat (7) is arranged at one end of the upper surface of the bearing seat (3), characterized in that: Also includes: A heat pipe positioning mechanism (1), wherein the heat pipe positioning mechanism (1) is arranged on the upper surface of the bearing seat (3) in a lifting manner, and a positioning cavity is formed between the bearing seat (3) and the heat pipe positioning mechanism (1); The locking mechanism (11) is composed of a plurality of positioning rods (102) and a lifting plate (101), the plurality of positioning rods (102) are elastically arranged inside the lifting plate (101), and the locking mechanism (11) is arranged on one side of the lifting plate (101), the plurality of positioning rods (102) are fixed to the lifting plate (101) through the locking mechanism (11), and the locking mechanism (11) is in transmission connection with the welding table (4); A movable groove is provided inside the lifting plate (101), and a fixed plate (103) is slidably installed inside the movable groove. A plurality of positioning holes are provided on the fixed plate (103), and the positioning rods (102) are located inside the positioning holes. The fixed plate (103) is arranged to move horizontally through a locking mechanism (11); The positioning rod (102) is composed of a lifting column (1022) and two sets of positioning heads (1023), the positioning heads (1023) are rotatably mounted on the bottom of the lifting column (1022), the lifting column (1022) is elastically arranged inside the movable groove, and the lifting columns (1022) are all located inside the positioning holes; The opposite sides of the two groups of positioning heads (1023) are both arranged in an arc shape, and the lower ends of the two groups of positioning heads (1023) on the sides away from each other are both arranged in a rounded shape; Both ends of the bottom of the lifting column (1022) are provided with grooves, and a connecting seat (1025) is slidably installed inside the groove. Both ends of the connecting seat (1025) are rotatably connected to a side mounting plate (1026), and the side mounting plate (1026) is fixedly connected to the positioning head (1023); Both sides of the lifting column (1022) are provided with fastening grooves, and two groups of fixing strips (1024) are elastically connected to the inside of the two groups of fastening grooves. The two sides and the upper surface of the connecting seat (1025) are provided with mutually connected fixing grooves, and one end of the fixing strip (1024) extends into the inside of the fixing groove. The lower ends of the two groups of fixing strips (1024) on the side away from each other are fixedly installed with fixing heads (106), and the fixing heads (106) are arranged corresponding to the center of the rotation axis of the side mounting plate (1026); A transmission tooth plate (108) is fixedly mounted on one end of one side of the inner portion of the groove, and a mating gear (107) is fixedly mounted on the rotating shaft of one set of side mounting plates (1026), and the transmission tooth plate (108) is meshedly connected with the mating gear (107).

2. A heat pipe positioning welding device according to claim 1, characterized in that: A fixing block (104) is fixedly installed on one side of the positioning hole, and a pull rod (105) is fixedly installed on the other side of the positioning hole. Another set of fixing blocks (104) is fixedly installed on one end of the pull rod (105), and both sets of fixing blocks (104) are arranged in a T shape, and the fixing block (104) is located between the two sets of fixing bars (1024).

3. A heat pipe positioning welding device according to claim 2, characterized in that: The locking mechanism (11) comprises a linkage screw rod (1101), the linkage screw rod (1101) being rotatably mounted on one side of the lifting plate (101), and the one side of the lifting plate (101) being rotatably connected to a threaded plate (1102) threadedly sleeved on the outside of the linkage screw rod (1101), one end of the linkage screw rod (1101) being fixedly connected to the fixed plate (103), and the threaded plate (1102) being transmission-connected to the welding table (4).

4. A heat pipe positioning welding device according to claim 3, characterized in that: A second synchronization mechanism (1104) is fixedly mounted on one end of the threaded plate (1102), an end of the second synchronization mechanism (1104) is transmission-connected to a second bevel gear mechanism (1105), and an end of the second bevel gear mechanism (1105) is transmission-connected to a transmission gear (1106). A slide groove is provided on the upper surface of the welding table (4), and a second tooth groove (13) is provided on one side of the interior of the slide groove, and the second tooth groove (13) is meshedly connected to the transmission gear (1106).

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